Merge github.com:google/grpc into async-api

Conflicts:
	test/core/echo/client.c

.gitignore

@@ -22,3 +22,7 @@ coverage
 
 # emacs temp files
 *~
+
+# vim temp files
+.*.swp
+

INSTALL

@@ -85,11 +85,12 @@ Compiling and installing protobuf 3.0.0 requires a few more dependencies in
 itself, notably the autoconf suite, curl, and unzip. If you have apt-get, you
 can install these dependencies this way:
 
-  # apt-get install unzip curl autotools-dev
+  # apt-get install unzip curl autoconf libtool
 
 Then, you can build and install protobuf 3.0.0:
 
   $ cd third_party/protobuf
+  $ ./autogen.sh
   $ ./configure
   $ make
   # make install

build.json

@@ -63,6 +63,10 @@
         "src/core/iomgr/time_averaged_stats.h",
         "src/core/iomgr/wakeup_fd_posix.h",
         "src/core/iomgr/wakeup_fd_pipe.h",
+        "src/core/json/json.h",
+        "src/core/json/json_common.h",
+        "src/core/json/json_reader.h",
+        "src/core/json/json_writer.h",
         "src/core/statistics/census_interface.h",
         "src/core/statistics/census_log.h",
         "src/core/statistics/census_rpc_stats.h",
@@ -144,6 +148,10 @@
         "src/core/iomgr/wakeup_fd_nospecial.c",
         "src/core/iomgr/wakeup_fd_pipe.c",
         "src/core/iomgr/wakeup_fd_posix.c",
+        "src/core/json/json.c",
+        "src/core/json/json_reader.c",
+        "src/core/json/json_string.c",
+        "src/core/json/json_writer.c",
         "src/core/statistics/census_init.c",
         "src/core/statistics/census_log.c",
         "src/core/statistics/census_rpc_stats.c",
@@ -184,8 +192,7 @@
         "src/core/transport/chttp2_transport.c",
         "src/core/transport/metadata.c",
         "src/core/transport/stream_op.c",
-        "src/core/transport/transport.c",
-        "third_party/cJSON/cJSON.c"
+        "src/core/transport/transport.c"
       ]
     }
   ],
@@ -1421,6 +1428,48 @@
         "gpr"
       ]
     },
+    {
+      "name": "json_test",
+      "build": "test",
+      "language": "c",
+      "src": [
+        "test/core/json/json_test.c"
+      ],
+      "deps": [
+        "grpc_test_util",
+        "grpc",
+        "gpr_test_util",
+        "gpr"
+      ]
+    },
+    {
+      "name": "json_rewrite",
+      "build": "test",
+      "language": "c",
+      "src": [
+        "test/core/json/json_rewrite.c"
+      ],
+      "deps": [
+        "grpc",
+        "gpr"
+      ],
+      "run": false
+    },
+    {
+      "name": "json_rewrite_test",
+      "build": "test",
+      "language": "c",
+      "src": [
+        "test/core/json/json_rewrite_test.c"
+      ],
+      "deps": [
+        "grpc_test_util",
+        "grpc",
+        "gpr_test_util",
+        "gpr"
+      ],
+      "run": false
+    },
     {
       "name": "channel_arguments_test",
       "build": "test",

examples/tips/client.cc

@@ -36,7 +36,11 @@
 #include "examples/tips/client.h"
 
 using tech::pubsub::Topic;
+using tech::pubsub::DeleteTopicRequest;
+using tech::pubsub::GetTopicRequest;
 using tech::pubsub::PublisherService;
+using tech::pubsub::ListTopicsRequest;
+using tech::pubsub::ListTopicsResponse;
 
 namespace grpc {
 namespace examples {
@@ -55,6 +59,34 @@ Status Client::CreateTopic(grpc::string topic) {
   return stub_->CreateTopic(&context, request, &response);
 }
 
+Status Client::ListTopics() {
+  ListTopicsRequest request;
+  ListTopicsResponse response;
+  ClientContext context;
+
+  return stub_->ListTopics(&context, request, &response);
+}
+
+Status Client::GetTopic(grpc::string topic) {
+  GetTopicRequest request;
+  Topic response;
+  ClientContext context;
+
+  request.set_topic(topic);
+
+  return stub_->GetTopic(&context, request, &response);
+}
+
+Status Client::DeleteTopic(grpc::string topic) {
+  DeleteTopicRequest request;
+  proto2::Empty response;
+  ClientContext context;
+
+  request.set_topic(topic);
+
+  return stub_->DeleteTopic(&context, request, &response);
+}
+
 }  // namespace tips
 }  // namespace examples
 }  // namespace grpc

examples/tips/client.h

@@ -47,6 +47,9 @@ class Client {
  public:
   Client(std::shared_ptr<grpc::ChannelInterface> channel);
   Status CreateTopic(grpc::string topic);
+  Status GetTopic(grpc::string topic);
+  Status DeleteTopic(grpc::string topic);
+  Status ListTopics();
 
  private:
   std::unique_ptr<tech::pubsub::PublisherService::Stub> stub_;

examples/tips/client_main.cc

@@ -31,6 +31,13 @@
  *
  */
 
+#include <chrono>
+#include <fstream>
+#include <memory>
+#include <sstream>
+#include <string>
+#include <thread>
+
 #include <grpc/grpc.h>
 #include <grpc/support/log.h>
 #include <google/gflags.h>
@@ -45,6 +52,20 @@
 DEFINE_int32(server_port, 443, "Server port.");
 DEFINE_string(server_host,
               "pubsub-staging.googleapis.com", "Server host to connect to");
+DEFINE_string(service_account_key_file, "",
+              "Path to service account json key file.");
+DEFINE_string(oauth_scope, "", "Scope for OAuth tokens.");
+
+grpc::string GetServiceAccountJsonKey() {
+  static grpc::string json_key;
+  if (json_key.empty()) {
+    std::ifstream json_key_file(FLAGS_service_account_key_file);
+    std::stringstream key_stream;
+    key_stream << json_key_file.rdbuf();
+    json_key = key_stream.str();
+  }
+  return json_key;
+}
 
 int main(int argc, char** argv) {
   grpc_init();
@@ -56,8 +77,15 @@ int main(int argc, char** argv) {
   snprintf(host_port, host_port_buf_size, "%s:%d", FLAGS_server_host.c_str(),
            FLAGS_server_port);
 
-  std::unique_ptr<grpc::Credentials> creds =
-      grpc::CredentialsFactory::ComputeEngineCredentials();
+  std::unique_ptr<grpc::Credentials> creds;
+  if (FLAGS_service_account_key_file != "") {
+    grpc::string json_key = GetServiceAccountJsonKey();
+    creds = grpc::CredentialsFactory::ServiceAccountCredentials(
+        json_key, FLAGS_oauth_scope, std::chrono::hours(1));
+  } else {
+    creds = grpc::CredentialsFactory::ComputeEngineCredentials();
+  }
+
   std::shared_ptr<grpc::ChannelInterface> channel(
       grpc::CreateTestChannel(
           host_port,
@@ -67,8 +95,17 @@ int main(int argc, char** argv) {
           creds));
 
   grpc::examples::tips::Client client(channel);
-  grpc::Status s = client.CreateTopic("test");
-  gpr_log(GPR_INFO, "return code %d", s.code());
+
+  grpc::Status s = client.CreateTopic("/topics/stoked-keyword-656/testtopics");
+  gpr_log(GPR_INFO, "return code %d, %s", s.code(), s.details().c_str());
+  GPR_ASSERT(s.IsOk());
+
+  s = client.GetTopic("/topics/stoked-keyword-656/testtopics");
+  gpr_log(GPR_INFO, "return code %d, %s", s.code(), s.details().c_str());
+  GPR_ASSERT(s.IsOk());
+
+  s = client.DeleteTopic("/topics/stoked-keyword-656/testtopics");
+  gpr_log(GPR_INFO, "return code %d, %s", s.code(), s.details().c_str());
   GPR_ASSERT(s.IsOk());
 
   channel.reset();

src/core/iomgr/fd_posix.c

@@ -47,12 +47,63 @@
 
 enum descriptor_state { NOT_READY, READY, WAITING };
 
+/* We need to keep a freelist not because of any concerns of malloc performance
+ * but instead so that implementations with multiple threads in (for example)
+ * epoll_wait deal with the race between pollset removal and incoming poll
+ * notifications.
+ *
+ * The problem is that the poller ultimately holds a reference to this
+ * object, so it is very difficult to know when is safe to free it, at least
+ * without some expensive synchronization.
+ *
+ * If we keep the object freelisted, in the worst case losing this race just
+ * becomes a spurious read notification on a reused fd.
+ */
+/* TODO(klempner): We could use some form of polling generation count to know
+ * when these are safe to free. */
+/* TODO(klempner): Consider disabling freelisting if we don't have multiple
+ * threads in poll on the same fd */
+/* TODO(klempner): Batch these allocations to reduce fragmentation */
+static grpc_fd *fd_freelist = NULL;
+static gpr_mu fd_freelist_mu;
+
+static void freelist_fd(grpc_fd *fd) {
+  gpr_free(fd->watchers);
+  gpr_mu_lock(&fd_freelist_mu);
+  fd->freelist_next = fd_freelist;
+  fd_freelist = fd;
+  gpr_mu_unlock(&fd_freelist_mu);
+}
+
+static grpc_fd *alloc_fd(int fd) {
+  grpc_fd *r = NULL;
+  gpr_mu_lock(&fd_freelist_mu);
+  if (fd_freelist != NULL) {
+    r = fd_freelist;
+    fd_freelist = fd_freelist->freelist_next;
+  }
+  gpr_mu_unlock(&fd_freelist_mu);
+  if (r == NULL) {
+    r = gpr_malloc(sizeof(grpc_fd));
+    gpr_mu_init(&r->set_state_mu);
+    gpr_mu_init(&r->watcher_mu);
+  }
+  gpr_atm_rel_store(&r->refst, 1);
+  gpr_atm_rel_store(&r->readst.state, NOT_READY);
+  gpr_atm_rel_store(&r->writest.state, NOT_READY);
+  gpr_atm_rel_store(&r->shutdown, 0);
+  r->fd = fd;
+  r->watchers = NULL;
+  r->watcher_count = 0;
+  r->watcher_capacity = 0;
+  r->freelist_next = NULL;
+  return r;
+}
+
 static void destroy(grpc_fd *fd) {
-  grpc_iomgr_add_callback(fd->on_done, fd->on_done_user_data);
   gpr_mu_destroy(&fd->set_state_mu);
-  gpr_free(fd->watchers);
+  gpr_mu_destroy(&fd->watcher_mu);
   gpr_free(fd);
-  grpc_iomgr_unref();
 }
 
 static void ref_by(grpc_fd *fd, int n) {
@@ -61,25 +112,30 @@ static void ref_by(grpc_fd *fd, int n) {
 
 static void unref_by(grpc_fd *fd, int n) {
   if (gpr_atm_full_fetch_add(&fd->refst, -n) == n) {
+    grpc_iomgr_add_callback(fd->on_done, fd->on_done_user_data);
+    freelist_fd(fd);
+    grpc_iomgr_unref();
+  }
+}
+
+void grpc_fd_global_init(void) {
+  gpr_mu_init(&fd_freelist_mu);
+}
+
+void grpc_fd_global_shutdown(void) {
+  while (fd_freelist != NULL) {
+    grpc_fd *fd = fd_freelist;
+    fd_freelist = fd_freelist->freelist_next;
     destroy(fd);
   }
+  gpr_mu_destroy(&fd_freelist_mu);
 }
 
 static void do_nothing(void *ignored, int success) {}
 
 grpc_fd *grpc_fd_create(int fd) {
-  grpc_fd *r = gpr_malloc(sizeof(grpc_fd));
+  grpc_fd *r = alloc_fd(fd);
   grpc_iomgr_ref();
-  gpr_atm_rel_store(&r->refst, 1);
-  gpr_atm_rel_store(&r->readst.state, NOT_READY);
-  gpr_atm_rel_store(&r->writest.state, NOT_READY);
-  gpr_mu_init(&r->set_state_mu);
-  gpr_mu_init(&r->watcher_mu);
-  gpr_atm_rel_store(&r->shutdown, 0);
-  r->fd = fd;
-  r->watchers = NULL;
-  r->watcher_count = 0;
-  r->watcher_capacity = 0;
   grpc_pollset_add_fd(grpc_backup_pollset(), r);
   return r;
 }

src/core/iomgr/fd_posix.h

@@ -69,6 +69,7 @@ typedef struct grpc_fd {
 
   grpc_iomgr_cb_func on_done;
   void *on_done_user_data;
+  struct grpc_fd *freelist_next;
 } grpc_fd;
 
 /* Create a wrapped file descriptor.
@@ -135,4 +136,7 @@ void grpc_fd_become_writable(grpc_fd *fd, int allow_synchronous_callback);
 void grpc_fd_ref(grpc_fd *fd);
 void grpc_fd_unref(grpc_fd *fd);
 
+void grpc_fd_global_init(void);
+void grpc_fd_global_shutdown(void);
+
 #endif /* __GRPC_INTERNAL_IOMGR_FD_POSIX_H_ */

src/core/iomgr/iomgr.c

@@ -98,7 +98,6 @@ void grpc_iomgr_shutdown(void) {
   gpr_timespec shutdown_deadline =
       gpr_time_add(gpr_now(), gpr_time_from_seconds(10));
 
-  grpc_iomgr_platform_shutdown();
 
   gpr_mu_lock(&g_mu);
   g_shutdown = 1;
@@ -129,6 +128,7 @@ void grpc_iomgr_shutdown(void) {
 
   gpr_event_wait(&g_background_callback_executor_done, gpr_inf_future);
 
+  grpc_iomgr_platform_shutdown();
   grpc_alarm_list_shutdown();
   gpr_mu_destroy(&g_mu);
   gpr_cv_destroy(&g_cv);

src/core/iomgr/iomgr_posix.c

@@ -32,7 +32,14 @@
  */
 
 #include "src/core/iomgr/iomgr_posix.h"
+#include "src/core/iomgr/fd_posix.h"
 
-void grpc_iomgr_platform_init(void) { grpc_pollset_global_init(); }
+void grpc_iomgr_platform_init(void) {
+  grpc_fd_global_init();
+  grpc_pollset_global_init();
+}
 
-void grpc_iomgr_platform_shutdown(void) { grpc_pollset_global_shutdown(); }
+void grpc_iomgr_platform_shutdown(void) {
+  grpc_pollset_global_shutdown();
+  grpc_fd_global_shutdown();
+}

src/core/json/json.c

@@ -0,0 +1,64 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+
+#include "src/core/json/json.h"
+
+grpc_json *grpc_json_create(grpc_json_type type) {
+  grpc_json *json = gpr_malloc(sizeof(grpc_json));
+  memset(json, 0, sizeof(grpc_json));
+  json->type = type;
+
+  return json;
+}
+
+void grpc_json_destroy(grpc_json *json) {
+  while (json->child) {
+    grpc_json_destroy(json->child);
+  }
+
+  if (json->next) {
+    json->next->prev = json->prev;
+  }
+
+  if (json->prev) {
+    json->prev->next = json->next;
+  } else if (json->parent) {
+    json->parent->child = json->next;
+  }
+
+  gpr_free(json);
+}

src/core/json/json.h

@@ -0,0 +1,88 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef __GRPC_SRC_CORE_JSON_JSON_H__
+#define __GRPC_SRC_CORE_JSON_JSON_H__
+
+#include <stdlib.h>
+
+#include "src/core/json/json_common.h"
+
+/* A tree-like structure to hold json values. The key and value pointers
+ * are not owned by it.
+ */
+typedef struct grpc_json {
+  struct grpc_json* next;
+  struct grpc_json* prev;
+  struct grpc_json* child;
+  struct grpc_json* parent;
+
+  grpc_json_type type;
+  const char* key;
+  const char* value;
+} grpc_json;
+
+/* The next two functions are going to parse the input string, and
+ * destroy it in the process, in order to use its space to store
+ * all of the keys and values for the returned object tree.
+ *
+ * They assume UTF-8 input stream, and will output UTF-8 encoded
+ * strings in the tree. The input stream's UTF-8 isn't validated,
+ * as in, what you input is what you get as an output.
+ *
+ * All the keys and values in the grpc_json_t objects will be strings
+ * pointing at your input buffer.
+ *
+ * Delete the allocated tree afterward using grpc_json_destroy().
+ */
+grpc_json* grpc_json_parse_string_with_len(char* input, size_t size);
+grpc_json* grpc_json_parse_string(char* input);
+
+/* This function will create a new string using gpr_realloc, and will
+ * deserialize the grpc_json tree into it. It'll be zero-terminated,
+ * but will be allocated in chunks of 256 bytes.
+ *
+ * The indent parameter controls the way the output is formatted.
+ * If indent is 0, then newlines will be suppressed as well, and the
+ * output will be condensed at its maximum.
+ */
+char* grpc_json_dump_to_string(grpc_json* json, int indent);
+
+/* Use these to create or delete a grpc_json object.
+ * Deletion is recursive. We will not attempt to free any of the strings
+ * in any of the objects of that tree.
+ */
+grpc_json* grpc_json_create(grpc_json_type type);
+void grpc_json_destroy(grpc_json* json);
+
+#endif /* __GRPC_SRC_CORE_JSON_JSON_H__ */

src/core/json/json_common.h

@@ -0,0 +1,49 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef __GRPC_SRC_CORE_JSON_JSON_COMMON_H__
+#define __GRPC_SRC_CORE_JSON_JSON_COMMON_H__
+
+/* The various json types. */
+typedef enum {
+  GRPC_JSON_OBJECT,
+  GRPC_JSON_ARRAY,
+  GRPC_JSON_STRING,
+  GRPC_JSON_NUMBER,
+  GRPC_JSON_TRUE,
+  GRPC_JSON_FALSE,
+  GRPC_JSON_NULL,
+  GRPC_JSON_TOP_LEVEL
+} grpc_json_type;
+
+#endif /* __GRPC_SRC_CORE_JSON_JSON_COMMON_H__ */

src/core/json/json_reader.c

@@ -0,0 +1,653 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <string.h>
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/json/json_reader.h"
+
+static void json_reader_string_clear(grpc_json_reader* reader) {
+  reader->vtable->string_clear(reader->userdata);
+}
+
+static void json_reader_string_add_char(grpc_json_reader* reader,
+                                             gpr_uint32 c) {
+  reader->vtable->string_add_char(reader->userdata, c);
+}
+
+static void json_reader_string_add_utf32(grpc_json_reader* reader,
+                                              gpr_uint32 utf32) {
+  reader->vtable->string_add_utf32(reader->userdata, utf32);
+}
+
+static gpr_uint32
+    grpc_json_reader_read_char(grpc_json_reader* reader) {
+  return reader->vtable->read_char(reader->userdata);
+}
+
+static void json_reader_container_begins(grpc_json_reader* reader,
+                                              grpc_json_type type) {
+  reader->vtable->container_begins(reader->userdata, type);
+}
+
+static grpc_json_type
+    grpc_json_reader_container_ends(grpc_json_reader* reader) {
+  return reader->vtable->container_ends(reader->userdata);
+}
+
+static void json_reader_set_key(grpc_json_reader* reader) {
+  reader->vtable->set_key(reader->userdata);
+}
+
+static void json_reader_set_string(grpc_json_reader* reader) {
+  reader->vtable->set_string(reader->userdata);
+}
+
+static int json_reader_set_number(grpc_json_reader* reader) {
+  return reader->vtable->set_number(reader->userdata);
+}
+
+static void json_reader_set_true(grpc_json_reader* reader) {
+  reader->vtable->set_true(reader->userdata);
+}
+
+static void json_reader_set_false(grpc_json_reader* reader) {
+  reader->vtable->set_false(reader->userdata);
+}
+
+static void json_reader_set_null(grpc_json_reader* reader) {
+  reader->vtable->set_null(reader->userdata);
+}
+
+/* Call this function to initialize the reader structure. */
+void grpc_json_reader_init(grpc_json_reader* reader,
+                           grpc_json_reader_vtable* vtable, void* userdata) {
+  memset(reader, 0, sizeof(grpc_json_reader));
+  reader->vtable = vtable;
+  reader->userdata = userdata;
+  json_reader_string_clear(reader);
+  reader->state = GRPC_JSON_STATE_VALUE_BEGIN;
+}
+
+int grpc_json_reader_is_complete(grpc_json_reader* reader) {
+  return ((reader->depth == 0) && ((reader->state == GRPC_JSON_STATE_END) ||
+          (reader->state == GRPC_JSON_STATE_VALUE_END)));
+}
+
+grpc_json_reader_status grpc_json_reader_run(grpc_json_reader* reader) {
+  gpr_uint32 c, success;
+
+  /* This state-machine is a strict implementation of ECMA-404 */
+  for (;;) {
+    c = grpc_json_reader_read_char(reader);
+    switch (c) {
+      /* Let's process the error cases first. */
+      case GRPC_JSON_READ_CHAR_ERROR:
+        return GRPC_JSON_READ_ERROR;
+
+      case GRPC_JSON_READ_CHAR_EAGAIN:
+        return GRPC_JSON_EAGAIN;
+
+      case GRPC_JSON_READ_CHAR_EOF:
+        if (grpc_json_reader_is_complete(reader)) {
+          return GRPC_JSON_DONE;
+        } else {
+          return GRPC_JSON_PARSE_ERROR;
+        }
+        break;
+
+      /* Processing whitespaces. */
+      case ' ':
+      case '\t':
+      case '\n':
+      case '\r':
+        switch (reader->state) {
+          case GRPC_JSON_STATE_OBJECT_KEY_BEGIN:
+          case GRPC_JSON_STATE_OBJECT_KEY_END:
+          case GRPC_JSON_STATE_VALUE_BEGIN:
+          case GRPC_JSON_STATE_VALUE_END:
+          case GRPC_JSON_STATE_END:
+            break;
+
+          case GRPC_JSON_STATE_OBJECT_KEY_STRING:
+          case GRPC_JSON_STATE_VALUE_STRING:
+            if (c != ' ') return GRPC_JSON_PARSE_ERROR;
+            if (reader->unicode_high_surrogate != 0) return GRPC_JSON_PARSE_ERROR;
+            json_reader_string_add_char(reader, c);
+            break;
+
+          case GRPC_JSON_STATE_VALUE_NUMBER:
+          case GRPC_JSON_STATE_VALUE_NUMBER_WITH_DECIMAL:
+          case GRPC_JSON_STATE_VALUE_NUMBER_ZERO:
+          case GRPC_JSON_STATE_VALUE_NUMBER_EPM:
+            success = json_reader_set_number(reader);
+            if (!success) return GRPC_JSON_PARSE_ERROR;
+            json_reader_string_clear(reader);
+            reader->state = GRPC_JSON_STATE_VALUE_END;
+            break;
+
+          default:
+            return GRPC_JSON_PARSE_ERROR;
+        }
+        break;
+
+      /* Value, object or array terminations. */
+      case ',':
+      case '}':
+      case ']':
+        switch (reader->state) {
+          case GRPC_JSON_STATE_OBJECT_KEY_STRING:
+          case GRPC_JSON_STATE_VALUE_STRING:
+            if (reader->unicode_high_surrogate != 0) return GRPC_JSON_PARSE_ERROR;
+            json_reader_string_add_char(reader, c);
+            break;
+
+          case GRPC_JSON_STATE_VALUE_NUMBER:
+          case GRPC_JSON_STATE_VALUE_NUMBER_WITH_DECIMAL:
+          case GRPC_JSON_STATE_VALUE_NUMBER_ZERO:
+          case GRPC_JSON_STATE_VALUE_NUMBER_EPM:
+            success = json_reader_set_number(reader);
+            if (!success) return GRPC_JSON_PARSE_ERROR;
+            json_reader_string_clear(reader);
+            reader->state = GRPC_JSON_STATE_VALUE_END;
+          /* The missing break here is intentional. */
+
+          case GRPC_JSON_STATE_VALUE_END:
+          case GRPC_JSON_STATE_OBJECT_KEY_BEGIN:
+          case GRPC_JSON_STATE_VALUE_BEGIN:
+            if (c == ',') {
+              if (reader->state != GRPC_JSON_STATE_VALUE_END) {
+                return GRPC_JSON_PARSE_ERROR;
+              }
+              if (reader->in_object) {
+                reader->state = GRPC_JSON_STATE_OBJECT_KEY_BEGIN;
+              } else {
+                reader->state = GRPC_JSON_STATE_VALUE_BEGIN;
+              }
+            } else {
+              if (reader->depth-- == 0) return GRPC_JSON_PARSE_ERROR;
+              if ((c == '}') && !reader->in_object) {
+                return GRPC_JSON_PARSE_ERROR;
+              }
+              if ((c == '}') &&
+                  (reader->state == GRPC_JSON_STATE_OBJECT_KEY_BEGIN) &&
+                  !reader->container_just_begun) {
+                return GRPC_JSON_PARSE_ERROR;
+              }
+              if ((c == ']') && !reader->in_array) return GRPC_JSON_PARSE_ERROR;
+              if ((c == ']') &&
+                  (reader->state == GRPC_JSON_STATE_VALUE_BEGIN) &&
+                  !reader->container_just_begun) {
+                return GRPC_JSON_PARSE_ERROR;
+              }
+              reader->state = GRPC_JSON_STATE_VALUE_END;
+              switch (grpc_json_reader_container_ends(reader)) {
+                case GRPC_JSON_OBJECT:
+                  reader->in_object = 1;
+                  reader->in_array = 0;
+                  break;
+                case GRPC_JSON_ARRAY:
+                  reader->in_object = 0;
+                  reader->in_array = 1;
+                  break;
+                case GRPC_JSON_TOP_LEVEL:
+                  if (reader->depth != 0) return GRPC_JSON_INTERNAL_ERROR;
+                  reader->in_object = 0;
+                  reader->in_array = 0;
+                  reader->state = GRPC_JSON_STATE_END;
+                  break;
+                default:
+                  return GRPC_JSON_INTERNAL_ERROR;
+              }
+            }
+            break;
+
+          default:
+            return GRPC_JSON_PARSE_ERROR;
+        }
+        break;
+
+      /* In-string escaping. */
+      case '\\':
+        switch (reader->state) {
+          case GRPC_JSON_STATE_OBJECT_KEY_STRING:
+            reader->escaped_string_was_key = 1;
+            reader->state = GRPC_JSON_STATE_STRING_ESCAPE;
+            break;
+
+          case GRPC_JSON_STATE_VALUE_STRING:
+            reader->escaped_string_was_key = 0;
+            reader->state = GRPC_JSON_STATE_STRING_ESCAPE;
+            break;
+
+          /* This is the \\ case. */
+          case GRPC_JSON_STATE_STRING_ESCAPE:
+            if (reader->unicode_high_surrogate != 0) return GRPC_JSON_PARSE_ERROR;
+            json_reader_string_add_char(reader, '\\');
+            if (reader->escaped_string_was_key) {
+              reader->state = GRPC_JSON_STATE_OBJECT_KEY_STRING;
+            } else {
+              reader->state = GRPC_JSON_STATE_VALUE_STRING;
+            }
+            break;
+
+          default:
+            return GRPC_JSON_PARSE_ERROR;
+        }
+        break;
+
+      default:
+        reader->container_just_begun = 0;
+        switch (reader->state) {
+          case GRPC_JSON_STATE_OBJECT_KEY_BEGIN:
+            if (c != '"') return GRPC_JSON_PARSE_ERROR;
+            reader->state = GRPC_JSON_STATE_OBJECT_KEY_STRING;
+            break;
+
+          case GRPC_JSON_STATE_OBJECT_KEY_STRING:
+            if (reader->unicode_high_surrogate != 0) return GRPC_JSON_PARSE_ERROR;
+            if (c == '"') {
+              reader->state = GRPC_JSON_STATE_OBJECT_KEY_END;
+              json_reader_set_key(reader);
+              json_reader_string_clear(reader);
+            } else {
+              if (c <= 0x001f) return GRPC_JSON_PARSE_ERROR;
+              json_reader_string_add_char(reader, c);
+            }
+            break;
+
+          case GRPC_JSON_STATE_VALUE_STRING:
+            if (reader->unicode_high_surrogate != 0) return GRPC_JSON_PARSE_ERROR;
+            if (c == '"') {
+              reader->state = GRPC_JSON_STATE_VALUE_END;
+              json_reader_set_string(reader);
+              json_reader_string_clear(reader);
+            } else {
+              if (c < 32) return GRPC_JSON_PARSE_ERROR;
+              json_reader_string_add_char(reader, c);
+            }
+            break;
+
+          case GRPC_JSON_STATE_OBJECT_KEY_END:
+            if (c != ':') return GRPC_JSON_PARSE_ERROR;
+            reader->state = GRPC_JSON_STATE_VALUE_BEGIN;
+            break;
+
+          case GRPC_JSON_STATE_VALUE_BEGIN:
+            switch (c) {
+              case 't':
+                reader->state = GRPC_JSON_STATE_VALUE_TRUE_R;
+                break;
+
+              case 'f':
+                reader->state = GRPC_JSON_STATE_VALUE_FALSE_A;
+                break;
+
+              case 'n':
+                reader->state = GRPC_JSON_STATE_VALUE_NULL_U;
+                break;
+
+              case '"':
+                reader->state = GRPC_JSON_STATE_VALUE_STRING;
+                break;
+
+              case '0':
+                json_reader_string_add_char(reader, c);
+                reader->state = GRPC_JSON_STATE_VALUE_NUMBER_ZERO;
+                break;
+
+              case '1':
+              case '2':
+              case '3':
+              case '4':
+              case '5':
+              case '6':
+              case '7':
+              case '8':
+              case '9':
+              case '-':
+                json_reader_string_add_char(reader, c);
+                reader->state = GRPC_JSON_STATE_VALUE_NUMBER;
+                break;
+
+              case '{':
+                reader->container_just_begun = 1;
+                json_reader_container_begins(reader, GRPC_JSON_OBJECT);
+                reader->depth++;
+                reader->state = GRPC_JSON_STATE_OBJECT_KEY_BEGIN;
+                reader->in_object = 1;
+                reader->in_array = 0;
+                break;
+
+              case '[':
+                reader->container_just_begun = 1;
+                json_reader_container_begins(reader, GRPC_JSON_ARRAY);
+                reader->depth++;
+                reader->in_object = 0;
+                reader->in_array = 1;
+                break;
+            }
+            break;
+
+          case GRPC_JSON_STATE_STRING_ESCAPE:
+            if (reader->escaped_string_was_key) {
+              reader->state = GRPC_JSON_STATE_OBJECT_KEY_STRING;
+            } else {
+              reader->state = GRPC_JSON_STATE_VALUE_STRING;
+            }
+            if (reader->unicode_high_surrogate && c != 'u')
+              return GRPC_JSON_PARSE_ERROR;
+            switch (c) {
+              case '"':
+              case '/':
+                json_reader_string_add_char(reader, c);
+                break;
+              case 'b':
+                json_reader_string_add_char(reader, '\b');
+                break;
+              case 'f':
+                json_reader_string_add_char(reader, '\f');
+                break;
+              case 'n':
+                json_reader_string_add_char(reader, '\n');
+                break;
+              case 'r':
+                json_reader_string_add_char(reader, '\r');
+                break;
+              case 't':
+                json_reader_string_add_char(reader, '\t');
+                break;
+              case 'u':
+                reader->state = GRPC_JSON_STATE_STRING_ESCAPE_U1;
+                reader->unicode_char = 0;
+                break;
+              default:
+                return GRPC_JSON_PARSE_ERROR;
+            }
+            break;
+
+          case GRPC_JSON_STATE_STRING_ESCAPE_U1:
+          case GRPC_JSON_STATE_STRING_ESCAPE_U2:
+          case GRPC_JSON_STATE_STRING_ESCAPE_U3:
+          case GRPC_JSON_STATE_STRING_ESCAPE_U4:
+            if ((c >= '0') && (c <= '9')) {
+              c -= '0';
+            } else if ((c >= 'A') && (c <= 'F')) {
+              c -= 'A' - 10;
+            } else if ((c >= 'a') && (c <= 'f')) {
+              c -= 'a' - 10;
+            } else {
+              return GRPC_JSON_PARSE_ERROR;
+            }
+            reader->unicode_char <<= 4;
+            reader->unicode_char |= c;
+
+            switch (reader->state) {
+              case GRPC_JSON_STATE_STRING_ESCAPE_U1:
+                reader->state = GRPC_JSON_STATE_STRING_ESCAPE_U2;
+                break;
+              case GRPC_JSON_STATE_STRING_ESCAPE_U2:
+                reader->state = GRPC_JSON_STATE_STRING_ESCAPE_U3;
+                break;
+              case GRPC_JSON_STATE_STRING_ESCAPE_U3:
+                reader->state = GRPC_JSON_STATE_STRING_ESCAPE_U4;
+                break;
+              case GRPC_JSON_STATE_STRING_ESCAPE_U4:
+                /* See grpc_json_writer_escape_string to have a description
+                 * of what's going on here.
+                 */
+                if ((reader->unicode_char & 0xfc00) == 0xd800) {
+                  /* high surrogate utf-16 */
+                  if (reader->unicode_high_surrogate != 0)
+                    return GRPC_JSON_PARSE_ERROR;
+                  reader->unicode_high_surrogate = reader->unicode_char;
+                } else if ((reader->unicode_char & 0xfc00) == 0xdc00) {
+                  /* low surrogate utf-16 */
+                  gpr_uint32 utf32;
+                  if (reader->unicode_high_surrogate == 0)
+                    return GRPC_JSON_PARSE_ERROR;
+                  utf32 = 0x10000;
+                  utf32 += (reader->unicode_high_surrogate - 0xd800) * 0x400;
+                  utf32 += reader->unicode_char - 0xdc00;
+                  json_reader_string_add_utf32(reader, utf32);
+                  reader->unicode_high_surrogate = 0;
+                } else {
+                  /* anything else */
+                  if (reader->unicode_high_surrogate != 0)
+                    return GRPC_JSON_PARSE_ERROR;
+                  json_reader_string_add_utf32(reader, reader->unicode_char);
+                }
+                if (reader->escaped_string_was_key) {
+                  reader->state = GRPC_JSON_STATE_OBJECT_KEY_STRING;
+                } else {
+                  reader->state = GRPC_JSON_STATE_VALUE_STRING;
+                }
+                break;
+              default:
+                return GRPC_JSON_INTERNAL_ERROR;
+            }
+            break;
+
+          case GRPC_JSON_STATE_VALUE_NUMBER:
+            json_reader_string_add_char(reader, c);
+            switch (c) {
+              case '0':
+              case '1':
+              case '2':
+              case '3':
+              case '4':
+              case '5':
+              case '6':
+              case '7':
+              case '8':
+              case '9':
+                break;
+              case 'e':
+              case 'E':
+                reader->state = GRPC_JSON_STATE_VALUE_NUMBER_E;
+                break;
+              case '.':
+                reader->state = GRPC_JSON_STATE_VALUE_NUMBER_DOT;
+                break;
+              default:
+                return GRPC_JSON_PARSE_ERROR;
+            }
+            break;
+
+          case GRPC_JSON_STATE_VALUE_NUMBER_WITH_DECIMAL:
+            json_reader_string_add_char(reader, c);
+            switch (c) {
+              case '0':
+              case '1':
+              case '2':
+              case '3':
+              case '4':
+              case '5':
+              case '6':
+              case '7':
+              case '8':
+              case '9':
+                break;
+              case 'e':
+              case 'E':
+                reader->state = GRPC_JSON_STATE_VALUE_NUMBER_E;
+                break;
+              default:
+                return GRPC_JSON_PARSE_ERROR;
+            }
+            break;
+
+          case GRPC_JSON_STATE_VALUE_NUMBER_ZERO:
+            if (c != '.') return GRPC_JSON_PARSE_ERROR;
+            json_reader_string_add_char(reader, c);
+            reader->state = GRPC_JSON_STATE_VALUE_NUMBER_DOT;
+            break;
+
+          case GRPC_JSON_STATE_VALUE_NUMBER_DOT:
+            json_reader_string_add_char(reader, c);
+            switch (c) {
+              case '0':
+              case '1':
+              case '2':
+              case '3':
+              case '4':
+              case '5':
+              case '6':
+              case '7':
+              case '8':
+              case '9':
+                reader->state = GRPC_JSON_STATE_VALUE_NUMBER_WITH_DECIMAL;
+                break;
+              default:
+                return GRPC_JSON_PARSE_ERROR;
+            }
+            break;
+
+          case GRPC_JSON_STATE_VALUE_NUMBER_E:
+            json_reader_string_add_char(reader, c);
+            switch (c) {
+              case '0':
+              case '1':
+              case '2':
+              case '3':
+              case '4':
+              case '5':
+              case '6':
+              case '7':
+              case '8':
+              case '9':
+              case '+':
+              case '-':
+                reader->state = GRPC_JSON_STATE_VALUE_NUMBER_EPM;
+                break;
+              default:
+                return GRPC_JSON_PARSE_ERROR;
+            }
+            break;
+
+          case GRPC_JSON_STATE_VALUE_NUMBER_EPM:
+            json_reader_string_add_char(reader, c);
+            switch (c) {
+              case '0':
+              case '1':
+              case '2':
+              case '3':
+              case '4':
+              case '5':
+              case '6':
+              case '7':
+              case '8':
+              case '9':
+                break;
+              default:
+                return GRPC_JSON_PARSE_ERROR;
+            }
+            break;
+
+          case GRPC_JSON_STATE_VALUE_TRUE_R:
+            if (c != 'r') return GRPC_JSON_PARSE_ERROR;
+            reader->state = GRPC_JSON_STATE_VALUE_TRUE_U;
+            break;
+
+          case GRPC_JSON_STATE_VALUE_TRUE_U:
+            if (c != 'u') return GRPC_JSON_PARSE_ERROR;
+            reader->state = GRPC_JSON_STATE_VALUE_TRUE_E;
+            break;
+
+          case GRPC_JSON_STATE_VALUE_TRUE_E:
+            if (c != 'e') return GRPC_JSON_PARSE_ERROR;
+            json_reader_set_true(reader);
+            reader->state = GRPC_JSON_STATE_VALUE_END;
+            break;
+
+          case GRPC_JSON_STATE_VALUE_FALSE_A:
+            if (c != 'a') return GRPC_JSON_PARSE_ERROR;
+            reader->state = GRPC_JSON_STATE_VALUE_FALSE_L;
+            break;
+
+          case GRPC_JSON_STATE_VALUE_FALSE_L:
+            if (c != 'l') return GRPC_JSON_PARSE_ERROR;
+            reader->state = GRPC_JSON_STATE_VALUE_FALSE_S;
+            break;
+
+          case GRPC_JSON_STATE_VALUE_FALSE_S:
+            if (c != 's') return GRPC_JSON_PARSE_ERROR;
+            reader->state = GRPC_JSON_STATE_VALUE_FALSE_E;
+            break;
+
+          case GRPC_JSON_STATE_VALUE_FALSE_E:
+            if (c != 'e') return GRPC_JSON_PARSE_ERROR;
+            json_reader_set_false(reader);
+            reader->state = GRPC_JSON_STATE_VALUE_END;
+            break;
+
+          case GRPC_JSON_STATE_VALUE_NULL_U:
+            if (c != 'u') return GRPC_JSON_PARSE_ERROR;
+            reader->state = GRPC_JSON_STATE_VALUE_NULL_L1;
+            break;
+
+          case GRPC_JSON_STATE_VALUE_NULL_L1:
+            if (c != 'l') return GRPC_JSON_PARSE_ERROR;
+            reader->state = GRPC_JSON_STATE_VALUE_NULL_L2;
+            break;
+
+          case GRPC_JSON_STATE_VALUE_NULL_L2:
+            if (c != 'l') return GRPC_JSON_PARSE_ERROR;
+            json_reader_set_null(reader);
+            reader->state = GRPC_JSON_STATE_VALUE_END;
+            break;
+
+          /* All of the VALUE_END cases are handled in the specialized case
+           * above. */
+          case GRPC_JSON_STATE_VALUE_END:
+            switch (c) {
+              case ',':
+              case '}':
+              case ']':
+                return GRPC_JSON_INTERNAL_ERROR;
+                break;
+
+              default:
+                return GRPC_JSON_PARSE_ERROR;
+            }
+            break;
+
+          case GRPC_JSON_STATE_END:
+            return GRPC_JSON_PARSE_ERROR;
+        }
+    }
+  }
+
+  return GRPC_JSON_INTERNAL_ERROR;
+}

src/core/json/json_reader.h

@@ -0,0 +1,160 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef __GRPC_SRC_CORE_JSON_JSON_READER_H__
+#define __GRPC_SRC_CORE_JSON_JSON_READER_H__
+
+#include <grpc/support/port_platform.h>
+#include "src/core/json/json_common.h"
+
+typedef enum {
+  GRPC_JSON_STATE_OBJECT_KEY_BEGIN,
+  GRPC_JSON_STATE_OBJECT_KEY_STRING,
+  GRPC_JSON_STATE_OBJECT_KEY_END,
+  GRPC_JSON_STATE_VALUE_BEGIN,
+  GRPC_JSON_STATE_VALUE_STRING,
+  GRPC_JSON_STATE_STRING_ESCAPE,
+  GRPC_JSON_STATE_STRING_ESCAPE_U1,
+  GRPC_JSON_STATE_STRING_ESCAPE_U2,
+  GRPC_JSON_STATE_STRING_ESCAPE_U3,
+  GRPC_JSON_STATE_STRING_ESCAPE_U4,
+  GRPC_JSON_STATE_VALUE_NUMBER,
+  GRPC_JSON_STATE_VALUE_NUMBER_WITH_DECIMAL,
+  GRPC_JSON_STATE_VALUE_NUMBER_ZERO,
+  GRPC_JSON_STATE_VALUE_NUMBER_DOT,
+  GRPC_JSON_STATE_VALUE_NUMBER_E,
+  GRPC_JSON_STATE_VALUE_NUMBER_EPM,
+  GRPC_JSON_STATE_VALUE_TRUE_R,
+  GRPC_JSON_STATE_VALUE_TRUE_U,
+  GRPC_JSON_STATE_VALUE_TRUE_E,
+  GRPC_JSON_STATE_VALUE_FALSE_A,
+  GRPC_JSON_STATE_VALUE_FALSE_L,
+  GRPC_JSON_STATE_VALUE_FALSE_S,
+  GRPC_JSON_STATE_VALUE_FALSE_E,
+  GRPC_JSON_STATE_VALUE_NULL_U,
+  GRPC_JSON_STATE_VALUE_NULL_L1,
+  GRPC_JSON_STATE_VALUE_NULL_L2,
+  GRPC_JSON_STATE_VALUE_END,
+  GRPC_JSON_STATE_END
+} grpc_json_reader_state;
+
+enum {
+  /* The first non-unicode value is 0x110000. But let's pick
+   * a value high enough to start our error codes from. These
+   * values are safe to return from the read_char function.
+   */
+  GRPC_JSON_READ_CHAR_EOF = 0x7ffffff0,
+  GRPC_JSON_READ_CHAR_EAGAIN,
+  GRPC_JSON_READ_CHAR_ERROR
+};
+
+struct grpc_json_reader;
+
+typedef struct grpc_json_reader_vtable {
+  /* Clears your internal string scratchpad. */
+  void (*string_clear)(void* userdata);
+  /* Adds a char to the string scratchpad. */
+  void (*string_add_char)(void* userdata, gpr_uint32 c);
+  /* Adds a utf32 char to the string scratchpad. */
+  void (*string_add_utf32)(void* userdata, gpr_uint32 c);
+  /* Reads a character from your input. May be utf-8, 16 or 32. */
+  gpr_uint32 (*read_char)(void* userdata);
+  /* Starts a container of type GRPC_JSON_ARRAY or GRPC_JSON_OBJECT. */
+  void (*container_begins)(void* userdata, grpc_json_type type);
+  /* Ends the current container. Must return the type of its parent. */
+  grpc_json_type (*container_ends)(void* userdata);
+  /* Your internal string scratchpad is an object's key. */
+  void (*set_key)(void* userdata);
+  /* Your internal string scratchpad is a string value. */
+  void (*set_string)(void* userdata);
+  /* Your internal string scratchpad is a numerical value. Return 1 if valid. */
+  int (*set_number)(void* userdata);
+  /* Sets the values true, false or null. */
+  void (*set_true)(void* userdata);
+  void (*set_false)(void* userdata);
+  void (*set_null)(void* userdata);
+} grpc_json_reader_vtable;
+
+typedef struct grpc_json_reader {
+  /* That structure is fully private, and initialized by grpc_json_reader_init.
+   * The definition is public so you can put it on your stack.
+   */
+
+  void* userdata;
+  grpc_json_reader_vtable* vtable;
+  int depth;
+  int in_object;
+  int in_array;
+  int escaped_string_was_key;
+  int container_just_begun;
+  gpr_uint16 unicode_char, unicode_high_surrogate;
+  grpc_json_reader_state state;
+} grpc_json_reader;
+
+/* The return type of the parser. */
+typedef enum {
+  GRPC_JSON_DONE,          /* The parser finished successfully. */
+  GRPC_JSON_EAGAIN,        /* The parser yields to get more data. */
+  GRPC_JSON_READ_ERROR,    /* The parser passes through a read error. */
+  GRPC_JSON_PARSE_ERROR,   /* The parser found an error in the json stream. */
+  GRPC_JSON_INTERNAL_ERROR /* The parser got an internal error. */
+} grpc_json_reader_status;
+
+/* Call this function to start parsing the input. It will return the following:
+ *    . GRPC_JSON_DONE if the input got eof, and the parsing finished
+ *      successfully.
+ *    . GRPC_JSON_EAGAIN if the read_char function returned again. Call the
+ *      parser again as needed. It is okay to call the parser in polling mode,
+ *      although a bit dull.
+ *    . GRPC_JSON_READ_ERROR if the read_char function returned an error. The
+ *      state isn't broken however, and the function can be called again if the
+ *      error has been corrected. But please use the EAGAIN feature instead for
+ *      consistency.
+ *    . GRPC_JSON_PARSE_ERROR if the input was somehow invalid.
+ *    . GRPC_JSON_INTERNAL_ERROR if the parser somehow ended into an invalid
+ *      internal state.
+ */
+grpc_json_reader_status grpc_json_reader_run(grpc_json_reader* reader);
+
+/* Call this function to initialize the reader structure. */
+void grpc_json_reader_init(grpc_json_reader* reader,
+                           grpc_json_reader_vtable* vtable, void* userdata);
+
+/* You may call this from the read_char callback if you don't know where is the
+ * end of your input stream, and you'd like the json reader to hint you that it
+ * has completed reading its input, so you can return an EOF to it. Note that
+ * there might still be trailing whitespaces after that point.
+ */
+int grpc_json_reader_is_complete(grpc_json_reader* reader);
+
+#endif /* __GRPC_SRC_CORE_JSON_JSON_READER_H__ */

src/core/json/json_string.c

@@ -0,0 +1,391 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <string.h>
+#include <stdlib.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+
+#include "src/core/json/json.h"
+#include "src/core/json/json_reader.h"
+#include "src/core/json/json_writer.h"
+
+/* The json reader will construct a bunch of grpc_json objects and
+ * link them all up together in a tree-like structure that will represent
+ * the json data in memory.
+ *
+ * It also uses its own input as a scratchpad to store all of the decoded,
+ * unescaped strings. So we need to keep track of all these pointers in
+ * that opaque structure the reader will carry for us.
+ *
+ * Note that this works because the act of parsing json always reduces its
+ * input size, and never expands it.
+ */
+typedef struct {
+  grpc_json* top;
+  grpc_json* current_container;
+  grpc_json* current_value;
+  gpr_uint8* input;
+  gpr_uint8* key;
+  gpr_uint8* string;
+  gpr_uint8* string_ptr;
+  size_t remaining_input;
+} json_reader_userdata;
+
+/* This json writer will put everything in a big string.
+ * The point is that we allocate that string in chunks of 256 bytes.
+ */
+typedef struct {
+  char* output;
+  size_t free_space;
+  size_t string_len;
+  size_t allocated;
+} json_writer_userdata;
+
+
+/* This function checks if there's enough space left in the output buffer,
+ * and will enlarge it if necessary. We're only allocating chunks of 256
+ * bytes at a time (or multiples thereof).
+ */
+static void json_writer_output_check(void* userdata, size_t needed) {
+  json_writer_userdata* state = userdata;
+  if (state->free_space >= needed) return;
+  needed -= state->free_space;
+  /* Round up by 256 bytes. */
+  needed = (needed + 0xff) & ~0xff;
+  state->output = gpr_realloc(state->output, state->allocated + needed);
+  state->free_space += needed;
+  state->allocated += needed;
+}
+
+/* These are needed by the writer's implementation. */
+static void json_writer_output_char(void* userdata, char c) {
+  json_writer_userdata* state = userdata;
+  json_writer_output_check(userdata, 1);
+  state->output[state->string_len++] = c;
+  state->free_space--;
+}
+
+static void json_writer_output_string_with_len(void* userdata,
+                                               const char* str, size_t len) {
+  json_writer_userdata* state = userdata;
+  json_writer_output_check(userdata, len);
+  memcpy(state->output + state->string_len, str, len);
+  state->string_len += len;
+  state->free_space -= len;
+}
+
+static void json_writer_output_string(void* userdata,
+                                           const char* str) {
+  size_t len = strlen(str);
+  json_writer_output_string_with_len(userdata, str, len);
+}
+
+/* The reader asks us to clear our scratchpad. In our case, we'll simply mark
+ * the end of the current string, and advance our output pointer.
+ */
+static void json_reader_string_clear(void* userdata) {
+  json_reader_userdata* state = userdata;
+  if (state->string) {
+    GPR_ASSERT(state->string_ptr < state->input);
+    *state->string_ptr++ = 0;
+  }
+  state->string = state->string_ptr;
+}
+
+static void json_reader_string_add_char(void* userdata, gpr_uint32 c) {
+  json_reader_userdata* state = userdata;
+  GPR_ASSERT(state->string_ptr < state->input);
+  GPR_ASSERT(c <= 0xff);
+  *state->string_ptr++ = (char)c;
+}
+
+/* We are converting a UTF-32 character into UTF-8 here,
+ * as described by RFC3629.
+ */
+static void json_reader_string_add_utf32(void* userdata, gpr_uint32 c) {
+  if (c <= 0x7f) {
+    json_reader_string_add_char(userdata, c);
+  } else if (c <= 0x7ff) {
+    int b1 = 0xc0 | ((c >> 6) & 0x1f);
+    int b2 = 0x80 | (c & 0x3f);
+    json_reader_string_add_char(userdata, b1);
+    json_reader_string_add_char(userdata, b2);
+  } else if (c <= 0xffff) {
+    int b1 = 0xe0 | ((c >> 12) & 0x0f);
+    int b2 = 0x80 | ((c >> 6) & 0x3f);
+    int b3 = 0x80 | (c & 0x3f);
+    json_reader_string_add_char(userdata, b1);
+    json_reader_string_add_char(userdata, b2);
+    json_reader_string_add_char(userdata, b3);
+  } else if (c <= 0x1fffff) {
+    int b1 = 0xf0 | ((c >> 18) & 0x07);
+    int b2 = 0x80 | ((c >> 12) & 0x3f);
+    int b3 = 0x80 | ((c >> 6) & 0x3f);
+    int b4 = 0x80 | (c & 0x3f);
+    json_reader_string_add_char(userdata, b1);
+    json_reader_string_add_char(userdata, b2);
+    json_reader_string_add_char(userdata, b3);
+    json_reader_string_add_char(userdata, b4);
+  }
+}
+
+/* We consider that the input may be a zero-terminated string. So we
+ * can end up hitting eof before the end of the alleged string length.
+ */
+static gpr_uint32 json_reader_read_char(void* userdata) {
+  gpr_uint32 r;
+  json_reader_userdata* state = userdata;
+
+  if (state->remaining_input == 0) return GRPC_JSON_READ_CHAR_EOF;
+
+  r = *state->input++;
+  state->remaining_input--;
+
+  if (r == 0) {
+    state->remaining_input = 0;
+    return GRPC_JSON_READ_CHAR_EOF;
+  }
+
+  return r;
+}
+
+/* Helper function to create a new grpc_json object and link it into
+ * our tree-in-progress inside our opaque structure.
+ */
+static grpc_json* json_create_and_link(void* userdata,
+                                       grpc_json_type type) {
+  json_reader_userdata* state = userdata;
+  grpc_json* json = grpc_json_create(type);
+
+  json->parent = state->current_container;
+  json->prev = state->current_value;
+  state->current_value = json;
+
+  if (json->prev) {
+    json->prev->next = json;
+  }
+  if (json->parent) {
+    if (!json->parent->child) {
+      json->parent->child = json;
+    }
+    if (json->parent->type == GRPC_JSON_OBJECT) {
+      json->key = (char*) state->key;
+    }
+  }
+  if (!state->top) {
+    state->top = json;
+  }
+
+  return json;
+}
+
+static void json_reader_container_begins(void* userdata, grpc_json_type type) {
+  json_reader_userdata* state = userdata;
+  grpc_json* container;
+
+  GPR_ASSERT(type == GRPC_JSON_ARRAY || type == GRPC_JSON_OBJECT);
+
+  container = json_create_and_link(userdata, type);
+  state->current_container = container;
+  state->current_value = NULL;
+}
+
+/* It's important to remember that the reader is mostly stateless, so it
+ * isn't trying to remember what the container was prior the one that just
+ * ends. Since we're keeping track of these for our own purpose, we are
+ * able to return that information back, which is useful for it to validate
+ * the input json stream.
+ *
+ * Also note that if we're at the top of the tree, and the last container
+ * ends, we have to return GRPC_JSON_TOP_LEVEL.
+ */
+static grpc_json_type json_reader_container_ends(void* userdata) {
+  grpc_json_type container_type = GRPC_JSON_TOP_LEVEL;
+  json_reader_userdata* state = userdata;
+
+  GPR_ASSERT(state->current_container);
+
+  state->current_value = state->current_container;
+  state->current_container = state->current_container->parent;
+
+  if (state->current_container) {
+    container_type = state->current_container->type;
+  }
+
+  return container_type;
+}
+
+/* The next 3 functions basically are the reader asking us to use our string
+ * scratchpad for one of these 3 purposes.
+ *
+ * Note that in the set_number case, we're not going to try interpreting it.
+ * We'll keep it as a string, and leave it to the caller to evaluate it.
+ */
+static void json_reader_set_key(void* userdata) {
+  json_reader_userdata* state = userdata;
+  state->key = state->string;
+}
+
+static void json_reader_set_string(void* userdata) {
+  json_reader_userdata* state = userdata;
+  grpc_json* json = json_create_and_link(userdata, GRPC_JSON_STRING);
+  json->value = (char*) state->string;
+}
+
+static int json_reader_set_number(void* userdata) {
+  json_reader_userdata* state = userdata;
+  grpc_json* json = json_create_and_link(userdata, GRPC_JSON_NUMBER);
+  json->value = (char*) state->string;
+  return 1;
+}
+
+/* The object types true, false and null are self-sufficient, and don't need
+ * any more information beside their type.
+ */
+static void json_reader_set_true(void* userdata) {
+  json_create_and_link(userdata, GRPC_JSON_TRUE);
+}
+
+static void json_reader_set_false(void* userdata) {
+  json_create_and_link(userdata, GRPC_JSON_FALSE);
+}
+
+static void json_reader_set_null(void* userdata) {
+  json_create_and_link(userdata, GRPC_JSON_NULL);
+}
+
+static grpc_json_reader_vtable reader_vtable = {
+  json_reader_string_clear,
+  json_reader_string_add_char,
+  json_reader_string_add_utf32,
+  json_reader_read_char,
+  json_reader_container_begins,
+  json_reader_container_ends,
+  json_reader_set_key,
+  json_reader_set_string,
+  json_reader_set_number,
+  json_reader_set_true,
+  json_reader_set_false,
+  json_reader_set_null
+};
+
+/* And finally, let's define our public API. */
+grpc_json* grpc_json_parse_string_with_len(char* input, size_t size) {
+  grpc_json_reader reader;
+  json_reader_userdata state;
+  grpc_json *json = NULL;
+  grpc_json_reader_status status;
+
+  if (!input) return NULL;
+
+  state.top = state.current_container = state.current_value = NULL;
+  state.string = state.key = NULL;
+  state.string_ptr = state.input = (gpr_uint8*) input;
+  state.remaining_input = size;
+  grpc_json_reader_init(&reader, &reader_vtable, &state);
+
+  status = grpc_json_reader_run(&reader);
+  json = state.top;
+
+  if ((status != GRPC_JSON_DONE) && json) {
+    grpc_json_destroy(json);
+    json = NULL;
+  }
+
+  return json;
+}
+
+#define UNBOUND_JSON_STRING_LENGTH 0x7fffffff
+
+grpc_json* grpc_json_parse_string(char* input) {
+  return grpc_json_parse_string_with_len(input, UNBOUND_JSON_STRING_LENGTH);
+}
+
+static void json_dump_recursive(grpc_json_writer* writer,
+                                grpc_json* json, int in_object) {
+  while (json) {
+    if (in_object) grpc_json_writer_object_key(writer, json->key);
+
+    switch (json->type) {
+      case GRPC_JSON_OBJECT:
+      case GRPC_JSON_ARRAY:
+        grpc_json_writer_container_begins(writer, json->type);
+        if (json->child)
+          json_dump_recursive(writer, json->child,
+                              json->type == GRPC_JSON_OBJECT);
+        grpc_json_writer_container_ends(writer, json->type);
+        break;
+      case GRPC_JSON_STRING:
+        grpc_json_writer_value_string(writer, json->value);
+        break;
+      case GRPC_JSON_NUMBER:
+        grpc_json_writer_value_raw(writer, json->value);
+        break;
+      case GRPC_JSON_TRUE:
+        grpc_json_writer_value_raw_with_len(writer, "true", 4);
+        break;
+      case GRPC_JSON_FALSE:
+        grpc_json_writer_value_raw_with_len(writer, "false", 5);
+        break;
+      case GRPC_JSON_NULL:
+        grpc_json_writer_value_raw_with_len(writer, "null", 4);
+        break;
+      default:
+        abort();
+    }
+    json = json->next;
+  }
+}
+
+static grpc_json_writer_vtable writer_vtable = {
+  json_writer_output_char,
+  json_writer_output_string,
+  json_writer_output_string_with_len
+};
+
+char* grpc_json_dump_to_string(grpc_json* json, int indent) {
+  grpc_json_writer writer;
+  json_writer_userdata state;
+
+  state.output = NULL;
+  state.free_space = state.string_len = state.allocated = 0;
+  grpc_json_writer_init(&writer, indent, &writer_vtable, &state);
+
+  json_dump_recursive(&writer, json, 0);
+
+  json_writer_output_char(&state, 0);
+
+  return state.output;
+}

src/core/json/json_writer.c

@@ -0,0 +1,252 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <string.h>
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/json/json_writer.h"
+
+static void json_writer_output_char(grpc_json_writer* writer, char c) {
+  writer->vtable->output_char(writer->userdata, c);
+}
+
+static void json_writer_output_string(grpc_json_writer* writer, const char* str) {
+  writer->vtable->output_string(writer->userdata, str);
+}
+
+static void json_writer_output_string_with_len(grpc_json_writer* writer, const char* str, size_t len) {
+  writer->vtable->output_string_with_len(writer->userdata, str, len);
+}
+
+void grpc_json_writer_init(grpc_json_writer* writer, int indent,
+                           grpc_json_writer_vtable* vtable, void* userdata) {
+  memset(writer, 0, sizeof(grpc_json_writer));
+  writer->container_empty = 1;
+  writer->indent = indent;
+  writer->vtable = vtable;
+  writer->userdata = userdata;
+}
+
+static void json_writer_output_indent(
+    grpc_json_writer* writer) {
+  static const char spacesstr[] =
+      "                "
+      "                "
+      "                "
+      "                ";
+
+  int spaces = writer->depth * writer->indent;
+
+  if (writer->indent == 0) return;
+
+  if (writer->got_key) {
+    json_writer_output_char(writer, ' ');
+    return;
+  }
+
+  while (spaces >= (sizeof(spacesstr) - 1)) {
+    json_writer_output_string_with_len(writer, spacesstr,
+                                            sizeof(spacesstr) - 1);
+    spaces -= (sizeof(spacesstr) - 1);
+  }
+
+  if (spaces == 0) return;
+
+  json_writer_output_string_with_len(
+      writer, spacesstr + sizeof(spacesstr) - 1 - spaces, spaces);
+}
+
+static void json_writer_value_end(grpc_json_writer* writer) {
+  if (writer->container_empty) {
+    writer->container_empty = 0;
+    if ((writer->indent == 0) || (writer->depth == 0)) return;
+    json_writer_output_char(writer, '\n');
+  } else {
+    json_writer_output_char(writer, ',');
+    if (writer->indent == 0) return;
+    json_writer_output_char(writer, '\n');
+  }
+}
+
+static void json_writer_escape_utf16(grpc_json_writer* writer, gpr_uint16 utf16) {
+  static const char hex[] = "0123456789abcdef";
+
+  json_writer_output_string_with_len(writer, "\\u", 2);
+  json_writer_output_char(writer, hex[(utf16 >> 12) & 0x0f]);
+  json_writer_output_char(writer, hex[(utf16 >> 8) & 0x0f]);
+  json_writer_output_char(writer, hex[(utf16 >> 4) & 0x0f]);
+  json_writer_output_char(writer, hex[(utf16) & 0x0f]);
+}
+
+static void json_writer_escape_string(grpc_json_writer* writer,
+                                      const char* string) {
+  json_writer_output_char(writer, '"');
+
+  for (;;) {
+    gpr_uint8 c = (gpr_uint8)*string++;
+    if (c == 0) {
+      break;
+    } else if ((c >= 32) && (c <= 127)) {
+      if ((c == '\\') || (c == '"')) json_writer_output_char(writer, '\\');
+      json_writer_output_char(writer, c);
+    } else if (c < 32) {
+      switch (c) {
+        case '\b':
+          json_writer_output_string_with_len(writer, "\\b", 2);
+          break;
+        case '\f':
+          json_writer_output_string_with_len(writer, "\\f", 2);
+          break;
+        case '\n':
+          json_writer_output_string_with_len(writer, "\\n", 2);
+          break;
+        case '\r':
+          json_writer_output_string_with_len(writer, "\\r", 2);
+          break;
+        case '\t':
+          json_writer_output_string_with_len(writer, "\\t", 2);
+          break;
+        default:
+          json_writer_escape_utf16(writer, c);
+          break;
+      }
+    } else {
+      gpr_uint32 utf32 = 0;
+      int extra = 0;
+      int i;
+      int valid = 1;
+      if ((c & 0xe0) == 0xc0) {
+        utf32 = c & 0x1f;
+        extra = 1;
+      } else if ((c & 0xf0) == 0xe0) {
+        utf32 = c & 0x0f;
+        extra = 2;
+      } else if ((c & 0xf8) == 0xf0) {
+        utf32 = c & 0x07;
+        extra = 3;
+      } else {
+        break;
+      }
+      for (i = 0; i < extra; i++) {
+        utf32 <<= 6;
+        c = *string++;
+        if ((c & 0xc0) != 0x80) {
+          valid = 0;
+          break;
+        }
+        utf32 |= c & 0x3f;
+      }
+      if (!valid) break;
+      /* The range 0xd800 - 0xdfff is reserved by the surrogates ad vitam.
+       * Any other range is technically reserved for future usage, so if we
+       * don't want the software to break in the future, we have to allow
+       * anything else. The first non-unicode character is 0x110000. */
+      if (((utf32 >= 0xd800) && (utf32 <= 0xdfff)) ||
+          (utf32 >= 0x110000)) break;
+      if (utf32 >= 0x10000) {
+        /* If utf32 contains a character that is above 0xffff, it needs to be
+         * broken down into a utf-16 surrogate pair. A surrogate pair is first
+         * a high surrogate, followed by a low surrogate. Each surrogate holds
+         * 10 bits of usable data, thus allowing a total of 20 bits of data.
+         * The high surrogate marker is 0xd800, while the low surrogate marker
+         * is 0xdc00. The low 10 bits of each will be the usable data.
+         *
+         * After re-combining the 20 bits of data, one has to add 0x10000 to
+         * the resulting value, in order to obtain the original character.
+         * This is obviously because the range 0x0000 - 0xffff can be written
+         * without any special trick.
+         *
+         * Since 0x10ffff is the highest allowed character, we're working in
+         * the range 0x00000 - 0xfffff after we decrement it by 0x10000.
+         * That range is exactly 20 bits.
+         */
+        utf32 -= 0x10000;
+        json_writer_escape_utf16(writer, 0xd800 | (utf32 >> 10));
+        json_writer_escape_utf16(writer, 0xdc00 | (utf32 & 0x3ff));
+      } else {
+        json_writer_escape_utf16(writer, utf32);
+      }
+    }
+  }
+
+  json_writer_output_char(writer, '"');
+}
+
+void grpc_json_writer_container_begins(grpc_json_writer* writer, grpc_json_type type) {
+  if (!writer->got_key) json_writer_value_end(writer);
+  json_writer_output_indent(writer);
+  json_writer_output_char(writer, type == GRPC_JSON_OBJECT ? '{' : '[');
+  writer->container_empty = 1;
+  writer->got_key = 0;
+  writer->depth++;
+}
+
+void grpc_json_writer_container_ends(grpc_json_writer* writer, grpc_json_type type) {
+  if (writer->indent && !writer->container_empty)
+    json_writer_output_char(writer, '\n');
+  writer->depth--;
+  if (!writer->container_empty) json_writer_output_indent(writer);
+  json_writer_output_char(writer, type == GRPC_JSON_OBJECT ? '}' : ']');
+  writer->container_empty = 0;
+  writer->got_key = 0;
+}
+
+void grpc_json_writer_object_key(grpc_json_writer* writer, const char* string) {
+  json_writer_value_end(writer);
+  json_writer_output_indent(writer);
+  json_writer_escape_string(writer, string);
+  json_writer_output_char(writer, ':');
+  writer->got_key = 1;
+}
+
+void grpc_json_writer_value_raw(grpc_json_writer* writer, const char* string) {
+  if (!writer->got_key) json_writer_value_end(writer);
+  json_writer_output_indent(writer);
+  json_writer_output_string(writer, string);
+  writer->got_key = 0;
+}
+
+void grpc_json_writer_value_raw_with_len(grpc_json_writer* writer, const char* string, size_t len) {
+  if (!writer->got_key) json_writer_value_end(writer);
+  json_writer_output_indent(writer);
+  json_writer_output_string_with_len(writer, string, len);
+  writer->got_key = 0;
+}
+
+void grpc_json_writer_value_string(grpc_json_writer* writer, const char* string) {
+  if (!writer->got_key) json_writer_value_end(writer);
+  json_writer_output_indent(writer);
+  json_writer_escape_string(writer, string);
+  writer->got_key = 0;
+}

src/core/json/json_writer.h

@@ -0,0 +1,93 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+/* The idea of the writer is basically symmetrical of the reader. While the
+ * reader emits various calls to your code, the writer takes basically the
+ * same calls and emit json out of it. It doesn't try to make any check on
+ * the order of the calls you do on it. Meaning you can theorically force
+ * it to generate invalid json.
+ *
+ * Also, unlike the reader, the writer expects UTF-8 encoded input strings.
+ * These strings will be UTF-8 validated, and any invalid character will
+ * cut the conversion short, before any invalid UTF-8 sequence, thus forming
+ * a valid UTF-8 string overall.
+ */
+
+#ifndef __GRPC_SRC_CORE_JSON_JSON_WRITER_H__
+#define __GRPC_SRC_CORE_JSON_JSON_WRITER_H__
+
+#include <stdlib.h>
+
+#include "src/core/json/json_common.h"
+
+typedef struct grpc_json_writer_vtable {
+  /* Adds a character to the output stream. */
+  void (*output_char)(void* userdata, char);
+  /* Adds a zero-terminated string to the output stream. */
+  void (*output_string)(void* userdata, const char* str);
+  /* Adds a fixed-length string to the output stream. */
+  void (*output_string_with_len)(void* userdata, const char* str, size_t len);
+
+} grpc_json_writer_vtable;
+
+typedef struct grpc_json_writer {
+  void* userdata;
+  grpc_json_writer_vtable* vtable;
+  int indent;
+  int depth;
+  int container_empty;
+  int got_key;
+} grpc_json_writer;
+
+/* Call this to initialize your writer structure. The indent parameter is
+ * specifying the number of spaces to use for indenting the output. If you
+ * use indent=0, then the output will not have any newlines either, thus
+ * emitting a condensed json output.
+ */
+void grpc_json_writer_init(grpc_json_writer* writer, int indent,
+                           grpc_json_writer_vtable* vtable, void* userdata);
+
+/* Signals the beginning of a container. */
+void grpc_json_writer_container_begins(grpc_json_writer* writer, grpc_json_type type);
+/* Signals the end of a container. */
+void grpc_json_writer_container_ends(grpc_json_writer* writer, grpc_json_type type);
+/* Writes down an object key for the next value. */
+void grpc_json_writer_object_key(grpc_json_writer* writer, const char* string);
+/* Sets a raw value. Useful for numbers. */
+void grpc_json_writer_value_raw(grpc_json_writer* writer, const char* string);
+/* Sets a raw value with its length. Useful for values like true or false. */
+void grpc_json_writer_value_raw_with_len(grpc_json_writer* writer, const char* string, size_t len);
+/* Sets a string value. It'll be escaped, and utf-8 validated. */
+void grpc_json_writer_value_string(grpc_json_writer* writer, const char* string);
+
+#endif /* __GRPC_SRC_CORE_JSON_JSON_WRITER_H__ */

src/core/security/credentials.c

@@ -42,7 +42,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
 
-#include "third_party/cJSON/cJSON.h"
+#include "src/core/json/json.h"
 
 #include <string.h>
 #include <stdio.h>
@@ -336,7 +336,7 @@ grpc_oauth2_token_fetcher_credentials_parse_server_response(
   char *null_terminated_body = NULL;
   char *new_access_token = NULL;
   grpc_credentials_status status = GRPC_CREDENTIALS_OK;
-  cJSON *json = NULL;
+  grpc_json *json = NULL;
 
   if (response->body_length > 0) {
     null_terminated_body = gpr_malloc(response->body_length + 1);
@@ -351,41 +351,48 @@ grpc_oauth2_token_fetcher_credentials_parse_server_response(
     status = GRPC_CREDENTIALS_ERROR;
     goto end;
   } else {
-    cJSON *access_token = NULL;
-    cJSON *token_type = NULL;
-    cJSON *expires_in = NULL;
-    json = cJSON_Parse(null_terminated_body);
+    grpc_json *access_token = NULL;
+    grpc_json *token_type = NULL;
+    grpc_json *expires_in = NULL;
+    grpc_json *ptr;
+    json = grpc_json_parse_string(null_terminated_body);
     if (json == NULL) {
       gpr_log(GPR_ERROR, "Could not parse JSON from %s", null_terminated_body);
       status = GRPC_CREDENTIALS_ERROR;
       goto end;
     }
-    if (json->type != cJSON_Object) {
+    if (json->type != GRPC_JSON_OBJECT) {
       gpr_log(GPR_ERROR, "Response should be a JSON object");
       status = GRPC_CREDENTIALS_ERROR;
       goto end;
     }
-    access_token = cJSON_GetObjectItem(json, "access_token");
-    if (access_token == NULL || access_token->type != cJSON_String) {
+    for (ptr = json->child; ptr; ptr = ptr->next) {
+      if (strcmp(ptr->key, "access_token") == 0) {
+        access_token = ptr;
+      } else if (strcmp(ptr->key, "token_type") == 0) {
+        token_type = ptr;
+      } else if (strcmp(ptr->key, "expires_in") == 0) {
+        expires_in = ptr;
+      }
+    }
+    if (access_token == NULL || access_token->type != GRPC_JSON_STRING) {
       gpr_log(GPR_ERROR, "Missing or invalid access_token in JSON.");
       status = GRPC_CREDENTIALS_ERROR;
       goto end;
     }
-    token_type = cJSON_GetObjectItem(json, "token_type");
-    if (token_type == NULL || token_type->type != cJSON_String) {
+    if (token_type == NULL || token_type->type != GRPC_JSON_STRING) {
       gpr_log(GPR_ERROR, "Missing or invalid token_type in JSON.");
       status = GRPC_CREDENTIALS_ERROR;
       goto end;
     }
-    expires_in = cJSON_GetObjectItem(json, "expires_in");
-    if (expires_in == NULL || expires_in->type != cJSON_Number) {
+    if (expires_in == NULL || expires_in->type != GRPC_JSON_NUMBER) {
       gpr_log(GPR_ERROR, "Missing or invalid expires_in in JSON.");
       status = GRPC_CREDENTIALS_ERROR;
       goto end;
     }
-    gpr_asprintf(&new_access_token, "%s %s", token_type->valuestring,
-                 access_token->valuestring);
-    token_lifetime->tv_sec = expires_in->valueint;
+    gpr_asprintf(&new_access_token, "%s %s", token_type->value,
+                 access_token->value);
+    token_lifetime->tv_sec = strtol(expires_in->value, NULL, 10);
     token_lifetime->tv_nsec = 0;
     if (*token_elem != NULL) grpc_mdelem_unref(*token_elem);
     *token_elem = grpc_mdelem_from_strings(ctx, GRPC_AUTHORIZATION_METADATA_KEY,
@@ -400,7 +407,7 @@ end:
   }
   if (null_terminated_body != NULL) gpr_free(null_terminated_body);
   if (new_access_token != NULL) gpr_free(new_access_token);
-  if (json != NULL) cJSON_Delete(json);
+  if (json != NULL) grpc_json_destroy(json);
   return status;
 }
 

src/core/security/json_token.c

@@ -44,7 +44,8 @@
 #include <openssl/bio.h>
 #include <openssl/evp.h>
 #include <openssl/pem.h>
-#include "third_party/cJSON/cJSON.h"
+
+#include "src/core/json/json.h"
 
 /* --- Constants. --- */
 
@@ -64,18 +65,20 @@ static grpc_jwt_encode_and_sign_override g_jwt_encode_and_sign_override = NULL;
 
 /* --- grpc_auth_json_key. --- */
 
-static const char *json_get_string_property(cJSON *json,
+static const char *json_get_string_property(grpc_json *json,
                                             const char *prop_name) {
-  cJSON *child = NULL;
-  child = cJSON_GetObjectItem(json, prop_name);
-  if (child == NULL || child->type != cJSON_String) {
+  grpc_json *child;
+  for (child = json->child; child != NULL; child = child->next) {
+    if (strcmp(child->key, prop_name) == 0) break;
+  }
+  if (child == NULL || child->type != GRPC_JSON_STRING) {
     gpr_log(GPR_ERROR, "Invalid or missing %s property.", prop_name);
     return NULL;
   }
-  return child->valuestring;
+  return child->value;
 }
 
-static int set_json_key_string_property(cJSON *json, const char *prop_name,
+static int set_json_key_string_property(grpc_json *json, const char *prop_name,
                                         char **json_key_field) {
   const char *prop_value = json_get_string_property(json, prop_name);
   if (prop_value == NULL) return 0;
@@ -91,7 +94,8 @@ int grpc_auth_json_key_is_valid(const grpc_auth_json_key *json_key) {
 grpc_auth_json_key grpc_auth_json_key_create_from_string(
     const char *json_string) {
   grpc_auth_json_key result;
-  cJSON *json = cJSON_Parse(json_string);
+  char *scratchpad = gpr_strdup(json_string);
+  grpc_json *json = grpc_json_parse_string(scratchpad);
   BIO *bio = NULL;
   const char *prop_value;
   int success = 0;
@@ -100,7 +104,7 @@ grpc_auth_json_key grpc_auth_json_key_create_from_string(
   result.type = GRPC_AUTH_JSON_KEY_TYPE_INVALID;
   if (json == NULL) {
     gpr_log(GPR_ERROR, "Invalid json string %s", json_string);
-    return result;
+    goto end;
   }
 
   prop_value = json_get_string_property(json, "type");
@@ -136,8 +140,9 @@ grpc_auth_json_key grpc_auth_json_key_create_from_string(
 
 end:
   if (bio != NULL) BIO_free(bio);
-  if (json != NULL) cJSON_Delete(json);
+  if (json != NULL) grpc_json_destroy(json);
   if (!success) grpc_auth_json_key_destruct(&result);
+  gpr_free(scratchpad);
   return result;
 }
 
@@ -164,49 +169,63 @@ void grpc_auth_json_key_destruct(grpc_auth_json_key *json_key) {
 
 /* --- jwt encoding and signature. --- */
 
+static grpc_json *create_child(grpc_json *brother, grpc_json *parent,
+                         const char *key, const char *value,
+                         grpc_json_type type) {
+  grpc_json *child = grpc_json_create(type);
+  if (brother) brother->next = child;
+  if (!parent->child) parent->child = child;
+  child->parent = parent;
+  child->value = value;
+  child->key = key;
+  return child;
+}
+
 static char *encoded_jwt_header(const char *algorithm) {
-  cJSON *json = cJSON_CreateObject();
-  cJSON *child = cJSON_CreateString(algorithm);
+  grpc_json *json = grpc_json_create(GRPC_JSON_OBJECT);
+  grpc_json *child = NULL;
   char *json_str = NULL;
   char *result = NULL;
-  cJSON_AddItemToObject(json, "alg", child);
-  child = cJSON_CreateString(GRPC_JWT_TYPE);
-  cJSON_AddItemToObject(json, "typ", child);
-  json_str = cJSON_PrintUnformatted(json);
+
+  child = create_child(NULL, json, "alg", algorithm, GRPC_JSON_STRING);
+  create_child(child, json, "typ", GRPC_JWT_TYPE, GRPC_JSON_STRING);
+
+  json_str = grpc_json_dump_to_string(json, 0);
   result = grpc_base64_encode(json_str, strlen(json_str), 1, 0);
-  free(json_str);
-  cJSON_Delete(json);
+  gpr_free(json_str);
+  grpc_json_destroy(json);
   return result;
 }
 
 static char *encoded_jwt_claim(const grpc_auth_json_key *json_key,
                                const char *scope, gpr_timespec token_lifetime) {
-  cJSON *json = cJSON_CreateObject();
-  cJSON *child = NULL;
+  grpc_json *json = grpc_json_create(GRPC_JSON_OBJECT);
+  grpc_json *child = NULL;
   char *json_str = NULL;
   char *result = NULL;
   gpr_timespec now = gpr_now();
   gpr_timespec expiration = gpr_time_add(now, token_lifetime);
+  /* log10(2^64) ~= 20 */
+  char now_str[24];
+  char expiration_str[24];
   if (gpr_time_cmp(token_lifetime, grpc_max_auth_token_lifetime) > 0) {
     gpr_log(GPR_INFO, "Cropping token lifetime to maximum allowed value.");
     expiration = gpr_time_add(now, grpc_max_auth_token_lifetime);
   }
-  child = cJSON_CreateString(json_key->client_email);
-  cJSON_AddItemToObject(json, "iss", child);
-  child = cJSON_CreateString(scope);
-  cJSON_AddItemToObject(json, "scope", child);
-  child = cJSON_CreateString(GRPC_JWT_AUDIENCE);
-  cJSON_AddItemToObject(json, "aud", child);
-  child = cJSON_CreateNumber(now.tv_sec);
-  cJSON_SetIntValue(child, now.tv_sec);
-  cJSON_AddItemToObject(json, "iat", child);
-  child = cJSON_CreateNumber(expiration.tv_sec);
-  cJSON_SetIntValue(child, expiration.tv_sec);
-  cJSON_AddItemToObject(json, "exp", child);
-  json_str = cJSON_PrintUnformatted(json);
+  sprintf(now_str, "%ld", now.tv_sec);
+  sprintf(expiration_str, "%ld", expiration.tv_sec);
+
+  child = create_child(NULL, json, "iss", json_key->client_email,
+                       GRPC_JSON_STRING);
+  child = create_child(child, json, "scope", scope, GRPC_JSON_STRING);
+  child = create_child(child, json, "aud", GRPC_JWT_AUDIENCE, GRPC_JSON_STRING);
+  child = create_child(child, json, "iat", now_str, GRPC_JSON_NUMBER);
+  create_child(child, json, "exp", expiration_str, GRPC_JSON_NUMBER);
+
+  json_str = grpc_json_dump_to_string(json, 0);
   result = grpc_base64_encode(json_str, strlen(json_str), 1, 0);
-  free(json_str);
-  cJSON_Delete(json);
+  gpr_free(json_str);
+  grpc_json_destroy(json);
   return result;
 }
 
@@ -216,10 +235,10 @@ static char *dot_concat_and_free_strings(char *str1, char *str2) {
   size_t result_len = str1_len + 1 /* dot */ + str2_len;
   char *result = gpr_malloc(result_len + 1 /* NULL terminated */);
   char *current = result;
-  strncpy(current, str1, str1_len);
+  memcpy(current, str1, str1_len);
   current += str1_len;
   *(current++) = '.';
-  strncpy(current, str2, str2_len);
+  memcpy(current, str2, str2_len);
   current += str2_len;
   GPR_ASSERT((current - result) == result_len);
   *current = '\0';

test/core/echo/client.c

@@ -78,7 +78,9 @@ int main(int argc, char **argv) {
 
   GPR_ASSERT(argc == 2);
   channel = grpc_channel_create(argv[1], NULL);
-  call = grpc_channel_create_call_old(channel, "/foo", "localhost", gpr_inf_future);
+  call = grpc_channel_create_call_old(
+      channel, "/foo", "localhost",
+      gpr_time_add(gpr_time_from_seconds(5), gpr_now()));
   GPR_ASSERT(grpc_call_invoke(call, cq, (void *)1, (void *)1, 0) ==
              GRPC_CALL_OK);
 

test/core/json/json_rewrite.c

@@ -0,0 +1,261 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <grpc/support/cmdline.h>
+#include <grpc/support/alloc.h>
+
+#include "src/core/json/json_reader.h"
+#include "src/core/json/json_writer.h"
+
+typedef struct json_writer_userdata {
+  FILE* out;
+} json_writer_userdata;
+
+typedef struct stacked_container {
+  grpc_json_type type;
+  struct stacked_container* next;
+} stacked_container;
+
+typedef struct json_reader_userdata {
+  FILE* in;
+  grpc_json_writer* writer;
+  char* scratchpad;
+  char* ptr;
+  size_t free_space;
+  size_t allocated;
+  size_t string_len;
+  stacked_container* top;
+} json_reader_userdata;
+
+static void json_writer_output_char(void* userdata, char c) {
+  json_writer_userdata* state = userdata;
+  fputc(c, state->out);
+}
+
+static void json_writer_output_string(void* userdata, const char* str) {
+  json_writer_userdata* state = userdata;
+  fputs(str, state->out);
+}
+
+static void json_writer_output_string_with_len(void* userdata, const char* str,
+                                               size_t len) {
+  json_writer_userdata* state = userdata;
+  fwrite(str, len, 1, state->out);
+}
+
+grpc_json_writer_vtable writer_vtable = {
+  json_writer_output_char,
+  json_writer_output_string,
+  json_writer_output_string_with_len
+};
+
+static void check_string(json_reader_userdata* state, size_t needed) {
+  if (state->free_space >= needed) return;
+  needed -= state->free_space;
+  needed = (needed + 0xff) & ~0xff;
+  state->scratchpad = gpr_realloc(state->scratchpad, state->allocated + needed);
+  state->free_space += needed;
+  state->allocated += needed;
+}
+
+static void json_reader_string_clear(void* userdata) {
+  json_reader_userdata* state = userdata;
+  state->free_space = state->allocated;
+  state->string_len = 0;
+}
+
+static void json_reader_string_add_char(void* userdata, gpr_uint32 c) {
+  json_reader_userdata* state = userdata;
+  check_string(state, 1);
+  state->scratchpad[state->string_len++] = c;
+}
+
+static void json_reader_string_add_utf32(void* userdata, gpr_uint32 c) {
+  if (c <= 0x7f) {
+    json_reader_string_add_char(userdata, c);
+  } else if (c <= 0x7ff) {
+    int b1 = 0xc0 | ((c >> 6) & 0x1f);
+    int b2 = 0x80 | (c & 0x3f);
+    json_reader_string_add_char(userdata, b1);
+    json_reader_string_add_char(userdata, b2);
+  } else if (c <= 0xffff) {
+    int b1 = 0xe0 | ((c >> 12) & 0x0f);
+    int b2 = 0x80 | ((c >> 6) & 0x3f);
+    int b3 = 0x80 | (c & 0x3f);
+    json_reader_string_add_char(userdata, b1);
+    json_reader_string_add_char(userdata, b2);
+    json_reader_string_add_char(userdata, b3);
+  } else if (c <= 0x1fffff) {
+    int b1 = 0xf0 | ((c >> 18) & 0x07);
+    int b2 = 0x80 | ((c >> 12) & 0x3f);
+    int b3 = 0x80 | ((c >> 6) & 0x3f);
+    int b4 = 0x80 | (c & 0x3f);
+    json_reader_string_add_char(userdata, b1);
+    json_reader_string_add_char(userdata, b2);
+    json_reader_string_add_char(userdata, b3);
+    json_reader_string_add_char(userdata, b4);
+  }
+}
+
+static gpr_uint32 json_reader_read_char(void* userdata) {
+  gpr_uint32 r;
+  json_reader_userdata* state = userdata;
+
+  r = fgetc(state->in);
+  if (r == EOF) r = GRPC_JSON_READ_CHAR_EOF;
+  return r;
+}
+
+static void json_reader_container_begins(void* userdata, grpc_json_type type) {
+  json_reader_userdata* state = userdata;
+  stacked_container* container = gpr_malloc(sizeof(stacked_container));
+
+  container->type = type;
+  container->next = state->top;
+  state->top = container;
+
+  grpc_json_writer_container_begins(state->writer, type);
+}
+
+static grpc_json_type json_reader_container_ends(void* userdata) {
+  json_reader_userdata* state = userdata;
+  stacked_container* container = state->top;
+
+  grpc_json_writer_container_ends(state->writer, container->type);
+  state->top = container->next;
+  gpr_free(container);
+  return state->top ? state->top->type : GRPC_JSON_TOP_LEVEL;
+}
+
+static void json_reader_set_key(void* userdata) {
+  json_reader_userdata* state = userdata;
+  json_reader_string_add_char(userdata, 0);
+
+  grpc_json_writer_object_key(state->writer, state->scratchpad);
+}
+
+static void json_reader_set_string(void* userdata) {
+  json_reader_userdata* state = userdata;
+  json_reader_string_add_char(userdata, 0);
+
+  grpc_json_writer_value_string(state->writer, state->scratchpad);
+}
+
+static int json_reader_set_number(void* userdata) {
+  json_reader_userdata* state = userdata;
+
+  grpc_json_writer_value_raw_with_len(state->writer, state->scratchpad,
+                                      state->string_len);
+
+  return 1;
+}
+
+static void json_reader_set_true(void* userdata) {
+  json_reader_userdata* state = userdata;
+
+  grpc_json_writer_value_raw_with_len(state->writer, "true", 4);
+}
+
+static void json_reader_set_false(void* userdata) {
+  json_reader_userdata* state = userdata;
+
+  grpc_json_writer_value_raw_with_len(state->writer, "false", 5);
+}
+
+static void json_reader_set_null(void* userdata) {
+  json_reader_userdata* state = userdata;
+
+  grpc_json_writer_value_raw_with_len(state->writer, "null", 4);
+}
+
+static grpc_json_reader_vtable reader_vtable = {
+  json_reader_string_clear,
+  json_reader_string_add_char,
+  json_reader_string_add_utf32,
+  json_reader_read_char,
+  json_reader_container_begins,
+  json_reader_container_ends,
+  json_reader_set_key,
+  json_reader_set_string,
+  json_reader_set_number,
+  json_reader_set_true,
+  json_reader_set_false,
+  json_reader_set_null
+};
+
+int rewrite(FILE* in, FILE* out, int indent) {
+  grpc_json_writer writer;
+  grpc_json_reader reader;
+  grpc_json_reader_status status;
+  json_writer_userdata writer_user;
+  json_reader_userdata reader_user;
+
+  reader_user.writer = &writer;
+  reader_user.in = in;
+  reader_user.top = NULL;
+  reader_user.scratchpad = NULL;
+  reader_user.string_len = 0;
+  reader_user.free_space = 0;
+  reader_user.allocated = 0;
+
+  writer_user.out = out;
+
+  grpc_json_writer_init(&writer, indent, &writer_vtable, &writer_user);
+  grpc_json_reader_init(&reader, &reader_vtable, &reader_user);
+
+  status = grpc_json_reader_run(&reader);
+
+  free(reader_user.scratchpad);
+  while (reader_user.top) {
+    stacked_container* container = reader_user.top;
+    reader_user.top = container->next;
+    free(container);
+  }
+
+  return status == GRPC_JSON_DONE;
+}
+
+int main(int argc, char** argv) {
+  int indent = 2;
+  gpr_cmdline* cl;
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_int(cl, "indent", NULL, &indent);
+  gpr_cmdline_parse(cl, argc, argv);
+  gpr_cmdline_destroy(cl);
+
+  return rewrite(stdin, stdout, indent) ? 0 : 1;
+}

test/core/json/json_rewrite_test.c

@@ -0,0 +1,322 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/useful.h>
+#include <grpc/support/log.h>
+#include "test/core/util/test_config.h"
+
+#include "src/core/json/json_reader.h"
+#include "src/core/json/json_writer.h"
+
+typedef struct json_writer_userdata {
+  FILE* cmp;
+} json_writer_userdata;
+
+typedef struct stacked_container {
+  grpc_json_type type;
+  struct stacked_container* next;
+} stacked_container;
+
+typedef struct json_reader_userdata {
+  FILE* in;
+  grpc_json_writer* writer;
+  char* scratchpad;
+  char* ptr;
+  size_t free_space;
+  size_t allocated;
+  size_t string_len;
+  stacked_container* top;
+  int did_eagain;
+} json_reader_userdata;
+
+static void json_writer_output_char(void* userdata, char c) {
+  json_writer_userdata* state = userdata;
+  int cmp = fgetc(state->cmp);
+  GPR_ASSERT(cmp == c);
+}
+
+static void json_writer_output_string(void* userdata, const char* str) {
+  while (*str) {
+    json_writer_output_char(userdata, *str++);
+  }
+}
+
+static void json_writer_output_string_with_len(void* userdata, const char* str,
+                                               size_t len) {
+  size_t i;
+  for (i = 0; i < len; i++) {
+    json_writer_output_char(userdata, str[i]);
+  }
+}
+
+grpc_json_writer_vtable writer_vtable = {
+  json_writer_output_char,
+  json_writer_output_string,
+  json_writer_output_string_with_len
+};
+
+static void check_string(json_reader_userdata* state, size_t needed) {
+  if (state->free_space >= needed) return;
+  needed -= state->free_space;
+  needed = (needed + 0xff) & ~0xff;
+  state->scratchpad = gpr_realloc(state->scratchpad, state->allocated + needed);
+  state->free_space += needed;
+  state->allocated += needed;
+}
+
+static void json_reader_string_clear(void* userdata) {
+  json_reader_userdata* state = userdata;
+  state->free_space = state->allocated;
+  state->string_len = 0;
+}
+
+static void json_reader_string_add_char(void* userdata, gpr_uint32 c) {
+  json_reader_userdata* state = userdata;
+  check_string(state, 1);
+  state->scratchpad[state->string_len++] = c;
+}
+
+static void json_reader_string_add_utf32(void* userdata, gpr_uint32 c) {
+  if (c <= 0x7f) {
+    json_reader_string_add_char(userdata, c);
+  } else if (c <= 0x7ff) {
+    int b1 = 0xc0 | ((c >> 6) & 0x1f);
+    int b2 = 0x80 | (c & 0x3f);
+    json_reader_string_add_char(userdata, b1);
+    json_reader_string_add_char(userdata, b2);
+  } else if (c <= 0xffff) {
+    int b1 = 0xe0 | ((c >> 12) & 0x0f);
+    int b2 = 0x80 | ((c >> 6) & 0x3f);
+    int b3 = 0x80 | (c & 0x3f);
+    json_reader_string_add_char(userdata, b1);
+    json_reader_string_add_char(userdata, b2);
+    json_reader_string_add_char(userdata, b3);
+  } else if (c <= 0x1fffff) {
+    int b1 = 0xf0 | ((c >> 18) & 0x07);
+    int b2 = 0x80 | ((c >> 12) & 0x3f);
+    int b3 = 0x80 | ((c >> 6) & 0x3f);
+    int b4 = 0x80 | (c & 0x3f);
+    json_reader_string_add_char(userdata, b1);
+    json_reader_string_add_char(userdata, b2);
+    json_reader_string_add_char(userdata, b3);
+    json_reader_string_add_char(userdata, b4);
+  }
+}
+
+static gpr_uint32 json_reader_read_char(void* userdata) {
+  gpr_uint32 r;
+  json_reader_userdata* state = userdata;
+
+  if (!state->did_eagain) {
+    state->did_eagain = 1;
+    return GRPC_JSON_READ_CHAR_EAGAIN;
+  }
+
+  state->did_eagain = 0;
+
+  r = fgetc(state->in);
+  if (r == EOF) r = GRPC_JSON_READ_CHAR_EOF;
+  return r;
+}
+
+static void json_reader_container_begins(void* userdata, grpc_json_type type) {
+  json_reader_userdata* state = userdata;
+  stacked_container* container = gpr_malloc(sizeof(stacked_container));
+
+  container->type = type;
+  container->next = state->top;
+  state->top = container;
+
+  grpc_json_writer_container_begins(state->writer, type);
+}
+
+static grpc_json_type json_reader_container_ends(void* userdata) {
+  json_reader_userdata* state = userdata;
+  stacked_container* container = state->top;
+
+  grpc_json_writer_container_ends(state->writer, container->type);
+  state->top = container->next;
+  gpr_free(container);
+  return state->top ? state->top->type : GRPC_JSON_TOP_LEVEL;
+}
+
+static void json_reader_set_key(void* userdata) {
+  json_reader_userdata* state = userdata;
+  json_reader_string_add_char(userdata, 0);
+
+  grpc_json_writer_object_key(state->writer, state->scratchpad);
+}
+
+static void json_reader_set_string(void* userdata) {
+  json_reader_userdata* state = userdata;
+  json_reader_string_add_char(userdata, 0);
+
+  grpc_json_writer_value_string(state->writer, state->scratchpad);
+}
+
+static int json_reader_set_number(void* userdata) {
+  json_reader_userdata* state = userdata;
+
+  grpc_json_writer_value_raw_with_len(state->writer, state->scratchpad,
+                                      state->string_len);
+
+  return 1;
+}
+
+static void json_reader_set_true(void* userdata) {
+  json_reader_userdata* state = userdata;
+
+  grpc_json_writer_value_raw_with_len(state->writer, "true", 4);
+}
+
+static void json_reader_set_false(void* userdata) {
+  json_reader_userdata* state = userdata;
+
+  grpc_json_writer_value_raw_with_len(state->writer, "false", 5);
+}
+
+static void json_reader_set_null(void* userdata) {
+  json_reader_userdata* state = userdata;
+
+  grpc_json_writer_value_raw_with_len(state->writer, "null", 4);
+}
+
+static grpc_json_reader_vtable reader_vtable = {
+  json_reader_string_clear,
+  json_reader_string_add_char,
+  json_reader_string_add_utf32,
+  json_reader_read_char,
+  json_reader_container_begins,
+  json_reader_container_ends,
+  json_reader_set_key,
+  json_reader_set_string,
+  json_reader_set_number,
+  json_reader_set_true,
+  json_reader_set_false,
+  json_reader_set_null
+};
+
+int rewrite_and_compare(FILE* in, FILE* cmp, int indent) {
+  grpc_json_writer writer;
+  grpc_json_reader reader;
+  grpc_json_reader_status status;
+  json_writer_userdata writer_user;
+  json_reader_userdata reader_user;
+
+  GPR_ASSERT(in);
+  GPR_ASSERT(cmp);
+
+  reader_user.writer = &writer;
+  reader_user.in = in;
+  reader_user.top = NULL;
+  reader_user.scratchpad = NULL;
+  reader_user.string_len = 0;
+  reader_user.free_space = 0;
+  reader_user.allocated = 0;
+  reader_user.did_eagain = 0;
+
+  writer_user.cmp = cmp;
+
+  grpc_json_writer_init(&writer, indent, &writer_vtable, &writer_user);
+  grpc_json_reader_init(&reader, &reader_vtable, &reader_user);
+
+  do {
+    status = grpc_json_reader_run(&reader);
+  } while (status == GRPC_JSON_EAGAIN);
+
+  free(reader_user.scratchpad);
+  while (reader_user.top) {
+    stacked_container* container = reader_user.top;
+    reader_user.top = container->next;
+    free(container);
+  }
+
+  return status == GRPC_JSON_DONE;
+}
+
+typedef struct test_file {
+  const char* input;
+  const char* cmp;
+  int indent;
+} test_file;
+
+static test_file test_files[] = {
+  {
+    "test/core/json/rewrite_test_input.json",
+    "test/core/json/rewrite_test_output_condensed.json",
+    0
+  },
+  {
+    "test/core/json/rewrite_test_input.json",
+    "test/core/json/rewrite_test_output_indented.json",
+    2
+  },
+  {
+    "test/core/json/rewrite_test_output_indented.json",
+    "test/core/json/rewrite_test_output_condensed.json",
+    0
+  },
+  {
+    "test/core/json/rewrite_test_output_condensed.json",
+    "test/core/json/rewrite_test_output_indented.json",
+    2
+  },
+};
+
+void test_rewrites() {
+  int i;
+
+  for (i = 0; i < GPR_ARRAY_SIZE(test_files); i++) {
+    test_file* test = test_files + i;
+    FILE* input = fopen(test->input, "rb");
+    FILE* cmp = fopen(test->cmp, "rb");
+    int status;
+    gpr_log(GPR_INFO, "Testing file %s against %s using indent=%i",
+            test->input, test->cmp, test->indent);
+    status = rewrite_and_compare(input, cmp, test->indent);
+    GPR_ASSERT(status);
+    fclose(input);
+    fclose(cmp);
+  }
+}
+
+int main(int argc, char** argv) {
+  grpc_test_init(argc, argv);
+  test_rewrites();
+  gpr_log(GPR_INFO, "json_rewrite_test success");
+  return 0;
+}

test/core/json/json_test.c

@@ -0,0 +1,177 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/useful.h>
+#include <grpc/support/log.h>
+#include "src/core/json/json.h"
+#include "src/core/support/string.h"
+
+#include "test/core/util/test_config.h"
+
+typedef struct testing_pair {
+  const char* input;
+  const char* output;
+} testing_pair;
+
+static testing_pair testing_pairs[] = {
+  /* Testing valid parsing. */
+
+  /* Testing trivial parses, with de-indentation. */
+  { " 0 ", "0" },
+  { " 1 ", "1" },
+  { " \"a\" ", "\"a\"" },
+  { " true ", "true" },
+  /* Testing the parser's ability to decode trivial UTF-16. */
+  { "\"\\u0020\\\\\\u0010\\u000a\\u000D\"", "\" \\\\\\u0010\\n\\r\"" },
+  /* Testing various UTF-8 sequences. */
+  { "\"ßâñć௵⇒\"", "\"\\u00df\\u00e2\\u00f1\\u0107\\u0bf5\\u21d2\"" },
+  { "\"\\u00df\\u00e2\\u00f1\\u0107\\u0bf5\\u21d2\"", "\"\\u00df\\u00e2\\u00f1\\u0107\\u0bf5\\u21d2\"" },
+  /* Testing UTF-8 character "𝄞", U+11D1E. */
+  { "\"\xf0\x9d\x84\x9e\"", "\"\\ud834\\udd1e\"" },
+  { "\"\\ud834\\udd1e\"", "\"\\ud834\\udd1e\"" },
+  /* Testing nested empty containers. */
+  { " [ [ ] , { } , [ ] ] ", "[[],{},[]]", },
+  /* Testing escapes and control chars in key strings. */
+  { " { \"\\n\\\\a , b\": 1, \"\": 0 } ", "{\"\\n\\\\a , b\":1,\"\":0}" },
+  /* Testing the writer's ability to cut off invalid UTF-8 sequences. */
+  { "\"abc\xf0\x9d\x24\"", "\"abc\"" },
+  { "\"\xff\"", "\"\"" },
+  /* Testing valid number parsing. */
+  { "[0, 42 , 0.0123, 123.456]", "[0,42,0.0123,123.456]"},
+  { "[1e4,-53.235e-31, 0.3e+3]", "[1e4,-53.235e-31,0.3e+3]" },
+  /* Testing keywords parsing. */
+  { "[true, false, null]", "[true,false,null]" },
+
+
+  /* Testing invalid parsing. */
+
+  /* Testing plain invalid things, exercising the state machine. */
+  { "\\", NULL },
+  { "nu ll", NULL },
+  { "fals", NULL },
+  /* Testing unterminated string. */
+  { "\"\\x", NULL },
+  /* Testing invalid UTF-16 number. */
+  { "\"\\u123x", NULL },
+  /* Testing imbalanced surrogate pairs. */
+  { "\"\\ud834f", NULL },
+  { "\"\\ud834\\n", NULL },
+  { "\"\\udd1ef", NULL },
+  { "\"\\ud834\\ud834\"", NULL },
+  { "\"\\ud834\\u1234\"", NULL },
+  /* Testing embedded invalid whitechars. */
+  { "\"\n\"", NULL },
+  { "\"\t\"", NULL },
+  /* Testing empty json data. */
+  { "", NULL },
+  /* Testing extra characters after end of parsing. */
+  { "{},", NULL },
+  /* Testing imbalanced containers. */
+  { "{}}", NULL },
+  { "[]]", NULL },
+  { "{{}", NULL },
+  { "[[]", NULL },
+  { "[}", NULL },
+  { "{]", NULL },
+  /*Testing trailing comma. */
+  { "{,}", NULL },
+  { "[1,2,3,4,]", NULL },
+  /* Testing having a key syntax in an array. */
+  { "[\"x\":0]", NULL },
+  /* Testing invalid numbers. */
+  { "1.", NULL },
+  { "1e", NULL },
+  { ".12", NULL },
+  { "1.x", NULL },
+  { "1.12x", NULL },
+  { "1ex", NULL },
+  { "1e12x", NULL },
+  { ".12x", NULL },
+  { "000", NULL },
+};
+
+static void test_pairs() {
+  int i;
+
+  for (i = 0; i < GPR_ARRAY_SIZE(testing_pairs); i++) {
+    testing_pair* pair = testing_pairs + i;
+    char* scratchpad = gpr_strdup(pair->input);
+    grpc_json* json;
+
+    gpr_log(GPR_INFO, "parsing string %i - should %s", i,
+            pair->output ? "succeed" : "fail");
+    json = grpc_json_parse_string(scratchpad);
+
+    if (pair->output) {
+      char* output;
+
+      GPR_ASSERT(json);
+      output = grpc_json_dump_to_string(json, 0);
+      GPR_ASSERT(output);
+      gpr_log(GPR_INFO, "succeeded with output = %s", output);
+      GPR_ASSERT(strcmp(output, pair->output) == 0);
+
+      grpc_json_destroy(json);
+      gpr_free(output);
+    } else {
+      gpr_log(GPR_INFO, "failed");
+      GPR_ASSERT(!json);
+    }
+
+    free(scratchpad);
+  }
+}
+
+static void test_atypical() {
+  char* scratchpad = gpr_strdup("[[],[]]");
+  grpc_json* json = grpc_json_parse_string(scratchpad);
+  grpc_json* brother;
+
+  GPR_ASSERT(json);
+  GPR_ASSERT(json->child);
+  brother = json->child->next;
+  grpc_json_destroy(json->child);
+  json->child = brother;
+  grpc_json_destroy(json);
+}
+
+int main(int argc, char **argv) {
+  grpc_test_init(argc, argv);
+  test_pairs();
+  test_atypical();
+  gpr_log(GPR_INFO, "json_test success");
+  return 0;
+}

test/core/json/rewrite_test_input.json

@@ -1,3 +1,86 @@
+{
+"unicode, escape and empty test": { "a\tb": "\u00eb", "empty": [{},[],{}] },
+"some more unicode tests": {
+  "typical utf-8 input (plane 0)": "ßâñć⇒",
+  "atypical utf-8 input (plane 1)": "𝄞"
+},
+
+"whitespace test": { "trying"   :  
+"to"  
+  ,
+  
+  "break"
+  :
+  "the"  , 
+  "parser": "a bit" }  ,  
+
+"#": "All these examples are from http://json.org/example",
+"test1":
+{
+    "glossary": {
+        "title": "example glossary",
+        "GlossDiv": {
+            "title": "S",
+            "GlossList": {
+                "GlossEntry": {
+                    "ID": "SGML",
+                    "SortAs": "SGML",
+                    "GlossTerm": "Standard Generalized Markup Language",
+                    "Acronym": "SGML",
+                    "Abbrev": "ISO 8879:1986",
+                    "GlossDef": {
+                        "para": "A meta-markup language, used to create markup languages such as DocBook.",
+                        "GlossSeeAlso": ["GML", "XML"]
+                    },
+                    "GlossSee": "markup"
+                }
+            }
+        }
+    }
+},
+
+"test2":
+{"menu": {
+  "id": "file",
+  "value": "File",
+  "popup": {
+    "menuitem": [
+      {"value": "New", "onclick": "CreateNewDoc()"},
+      {"value": "Open", "onclick": "OpenDoc()"},
+      {"value": "Close", "onclick": "CloseDoc()"}
+    ]
+  }
+}},
+
+"test3":
+{"widget": {
+    "debug": "on",
+    "window": {
+        "title": "Sample Konfabulator Widget",
+        "name": "main_window",
+        "width": 500,
+        "height": 500
+    },
+    "image": { 
+        "src": "Images/Sun.png",
+        "name": "sun1",
+        "hOffset": 250,
+        "vOffset": 250,
+        "alignment": "center"
+    },
+    "text": {
+        "data": "Click Here",
+        "size": 36,
+        "style": "bold",
+        "name": "text1",
+        "hOffset": 250,
+        "vOffset": 100,
+        "alignment": "center",
+        "onMouseUp": "sun1.opacity = (sun1.opacity / 100) * 90;"
+    }
+}},
+
+"test4":
 {"web-app": {
   "servlet": [   
     {
@@ -85,4 +168,36 @@
  
   "taglib": {
     "taglib-uri": "cofax.tld",
-    "taglib-location": "/WEB-INF/tlds/cofax.tld"}}}
+    "taglib-location": "/WEB-INF/tlds/cofax.tld"}}},
+
+"test5":
+{"menu": {
+    "header": "SVG Viewer",
+    "items": [
+        {"id": "Open"},
+        {"id": "OpenNew", "label": "Open New"},
+        null,
+        {"id": "ZoomIn", "label": "Zoom In"},
+        {"id": "ZoomOut", "label": "Zoom Out"},
+        {"id": "OriginalView", "label": "Original View"},
+        null,
+        {"id": "Quality"},
+        {"id": "Pause"},
+        {"id": "Mute"},
+        null,
+        {"id": "Find", "label": "Find..."},
+        {"id": "FindAgain", "label": "Find Again"},
+        {"id": "Copy"},
+        {"id": "CopyAgain", "label": "Copy Again"},
+        {"id": "CopySVG", "label": "Copy SVG"},
+        {"id": "ViewSVG", "label": "View SVG"},
+        {"id": "ViewSource", "label": "View Source"},
+        {"id": "SaveAs", "label": "Save As"},
+        null,
+        {"id": "Help"},
+        {"id": "About", "label": "About Adobe CVG Viewer..."}
+    ]
+}}
+
+
+}

test/core/json/rewrite_test_output_condensed.json

@@ -0,0 +1 @@
+{"unicode, escape and empty test":{"a\tb":"\u00eb","empty":[{},[],{}]},"some more unicode tests":{"typical utf-8 input (plane 0)":"\u00df\u00e2\u00f1\u0107\u21d2","atypical utf-8 input (plane 1)":"\ud834\udd1e"},"whitespace test":{"trying":"to","break":"the","parser":"a bit"},"#":"All these examples are from http://json.org/example","test1":{"glossary":{"title":"example glossary","GlossDiv":{"title":"S","GlossList":{"GlossEntry":{"ID":"SGML","SortAs":"SGML","GlossTerm":"Standard Generalized Markup Language","Acronym":"SGML","Abbrev":"ISO 8879:1986","GlossDef":{"para":"A meta-markup language, used to create markup languages such as DocBook.","GlossSeeAlso":["GML","XML"]},"GlossSee":"markup"}}}}},"test2":{"menu":{"id":"file","value":"File","popup":{"menuitem":[{"value":"New","onclick":"CreateNewDoc()"},{"value":"Open","onclick":"OpenDoc()"},{"value":"Close","onclick":"CloseDoc()"}]}}},"test3":{"widget":{"debug":"on","window":{"title":"Sample Konfabulator Widget","name":"main_window","width":500,"height":500},"image":{"src":"Images/Sun.png","name":"sun1","hOffset":250,"vOffset":250,"alignment":"center"},"text":{"data":"Click Here","size":36,"style":"bold","name":"text1","hOffset":250,"vOffset":100,"alignment":"center","onMouseUp":"sun1.opacity = (sun1.opacity / 100) * 90;"}}},"test4":{"web-app":{"servlet":[{"servlet-name":"cofaxCDS","servlet-class":"org.cofax.cds.CDSServlet","init-param":{"configGlossary:installationAt":"Philadelphia, PA","configGlossary:adminEmail":"ksm@pobox.com","configGlossary:poweredBy":"Cofax","configGlossary:poweredByIcon":"/images/cofax.gif","configGlossary:staticPath":"/content/static","templateProcessorClass":"org.cofax.WysiwygTemplate","templateLoaderClass":"org.cofax.FilesTemplateLoader","templatePath":"templates","templateOverridePath":"","defaultListTemplate":"listTemplate.htm","defaultFileTemplate":"articleTemplate.htm","useJSP":false,"jspListTemplate":"listTemplate.jsp","jspFileTemplate":"articleTemplate.jsp","cachePackageTagsTrack":200,"cachePackageTagsStore":200,"cachePackageTagsRefresh":60,"cacheTemplatesTrack":100,"cacheTemplatesStore":50,"cacheTemplatesRefresh":15,"cachePagesTrack":200,"cachePagesStore":100,"cachePagesRefresh":10,"cachePagesDirtyRead":10,"searchEngineListTemplate":"forSearchEnginesList.htm","searchEngineFileTemplate":"forSearchEngines.htm","searchEngineRobotsDb":"WEB-INF/robots.db","useDataStore":true,"dataStoreClass":"org.cofax.SqlDataStore","redirectionClass":"org.cofax.SqlRedirection","dataStoreName":"cofax","dataStoreDriver":"com.microsoft.jdbc.sqlserver.SQLServerDriver","dataStoreUrl":"jdbc:microsoft:sqlserver://LOCALHOST:1433;DatabaseName=goon","dataStoreUser":"sa","dataStorePassword":"dataStoreTestQuery","dataStoreTestQuery":"SET NOCOUNT ON;select test='test';","dataStoreLogFile":"/usr/local/tomcat/logs/datastore.log","dataStoreInitConns":10,"dataStoreMaxConns":100,"dataStoreConnUsageLimit":100,"dataStoreLogLevel":"debug","maxUrlLength":500}},{"servlet-name":"cofaxEmail","servlet-class":"org.cofax.cds.EmailServlet","init-param":{"mailHost":"mail1","mailHostOverride":"mail2"}},{"servlet-name":"cofaxAdmin","servlet-class":"org.cofax.cds.AdminServlet"},{"servlet-name":"fileServlet","servlet-class":"org.cofax.cds.FileServlet"},{"servlet-name":"cofaxTools","servlet-class":"org.cofax.cms.CofaxToolsServlet","init-param":{"templatePath":"toolstemplates/","log":1,"logLocation":"/usr/local/tomcat/logs/CofaxTools.log","logMaxSize":"","dataLog":1,"dataLogLocation":"/usr/local/tomcat/logs/dataLog.log","dataLogMaxSize":"","removePageCache":"/content/admin/remove?cache=pages&id=","removeTemplateCache":"/content/admin/remove?cache=templates&id=","fileTransferFolder":"/usr/local/tomcat/webapps/content/fileTransferFolder","lookInContext":1,"adminGroupID":4,"betaServer":true}}],"servlet-mapping":{"cofaxCDS":"/","cofaxEmail":"/cofaxutil/aemail/*","cofaxAdmin":"/admin/*","fileServlet":"/static/*","cofaxTools":"/tools/*"},"taglib":{"taglib-uri":"cofax.tld","taglib-location":"/WEB-INF/tlds/cofax.tld"}}},"test5":{"menu":{"header":"SVG Viewer","items":[{"id":"Open"},{"id":"OpenNew","label":"Open New"},null,{"id":"ZoomIn","label":"Zoom In"},{"id":"ZoomOut","label":"Zoom Out"},{"id":"OriginalView","label":"Original View"},null,{"id":"Quality"},{"id":"Pause"},{"id":"Mute"},null,{"id":"Find","label":"Find..."},{"id":"FindAgain","label":"Find Again"},{"id":"Copy"},{"id":"CopyAgain","label":"Copy Again"},{"id":"CopySVG","label":"Copy SVG"},{"id":"ViewSVG","label":"View SVG"},{"id":"ViewSource","label":"View Source"},{"id":"SaveAs","label":"Save As"},null,{"id":"Help"},{"id":"About","label":"About Adobe CVG Viewer..."}]}}}

test/core/json/rewrite_test_output_indented.json

@@ -0,0 +1,272 @@
+{
+  "unicode, escape and empty test": {
+    "a\tb": "\u00eb",
+    "empty": [
+      {},
+      [],
+      {}
+    ]
+  },
+  "some more unicode tests": {
+    "typical utf-8 input (plane 0)": "\u00df\u00e2\u00f1\u0107\u21d2",
+    "atypical utf-8 input (plane 1)": "\ud834\udd1e"
+  },
+  "whitespace test": {
+    "trying": "to",
+    "break": "the",
+    "parser": "a bit"
+  },
+  "#": "All these examples are from http://json.org/example",
+  "test1": {
+    "glossary": {
+      "title": "example glossary",
+      "GlossDiv": {
+        "title": "S",
+        "GlossList": {
+          "GlossEntry": {
+            "ID": "SGML",
+            "SortAs": "SGML",
+            "GlossTerm": "Standard Generalized Markup Language",
+            "Acronym": "SGML",
+            "Abbrev": "ISO 8879:1986",
+            "GlossDef": {
+              "para": "A meta-markup language, used to create markup languages such as DocBook.",
+              "GlossSeeAlso": [
+                "GML",
+                "XML"
+              ]
+            },
+            "GlossSee": "markup"
+          }
+        }
+      }
+    }
+  },
+  "test2": {
+    "menu": {
+      "id": "file",
+      "value": "File",
+      "popup": {
+        "menuitem": [
+          {
+            "value": "New",
+            "onclick": "CreateNewDoc()"
+          },
+          {
+            "value": "Open",
+            "onclick": "OpenDoc()"
+          },
+          {
+            "value": "Close",
+            "onclick": "CloseDoc()"
+          }
+        ]
+      }
+    }
+  },
+  "test3": {
+    "widget": {
+      "debug": "on",
+      "window": {
+        "title": "Sample Konfabulator Widget",
+        "name": "main_window",
+        "width": 500,
+        "height": 500
+      },
+      "image": {
+        "src": "Images/Sun.png",
+        "name": "sun1",
+        "hOffset": 250,
+        "vOffset": 250,
+        "alignment": "center"
+      },
+      "text": {
+        "data": "Click Here",
+        "size": 36,
+        "style": "bold",
+        "name": "text1",
+        "hOffset": 250,
+        "vOffset": 100,
+        "alignment": "center",
+        "onMouseUp": "sun1.opacity = (sun1.opacity / 100) * 90;"
+      }
+    }
+  },
+  "test4": {
+    "web-app": {
+      "servlet": [
+        {
+          "servlet-name": "cofaxCDS",
+          "servlet-class": "org.cofax.cds.CDSServlet",
+          "init-param": {
+            "configGlossary:installationAt": "Philadelphia, PA",
+            "configGlossary:adminEmail": "ksm@pobox.com",
+            "configGlossary:poweredBy": "Cofax",
+            "configGlossary:poweredByIcon": "/images/cofax.gif",
+            "configGlossary:staticPath": "/content/static",
+            "templateProcessorClass": "org.cofax.WysiwygTemplate",
+            "templateLoaderClass": "org.cofax.FilesTemplateLoader",
+            "templatePath": "templates",
+            "templateOverridePath": "",
+            "defaultListTemplate": "listTemplate.htm",
+            "defaultFileTemplate": "articleTemplate.htm",
+            "useJSP": false,
+            "jspListTemplate": "listTemplate.jsp",
+            "jspFileTemplate": "articleTemplate.jsp",
+            "cachePackageTagsTrack": 200,
+            "cachePackageTagsStore": 200,
+            "cachePackageTagsRefresh": 60,
+            "cacheTemplatesTrack": 100,
+            "cacheTemplatesStore": 50,
+            "cacheTemplatesRefresh": 15,
+            "cachePagesTrack": 200,
+            "cachePagesStore": 100,
+            "cachePagesRefresh": 10,
+            "cachePagesDirtyRead": 10,
+            "searchEngineListTemplate": "forSearchEnginesList.htm",
+            "searchEngineFileTemplate": "forSearchEngines.htm",
+            "searchEngineRobotsDb": "WEB-INF/robots.db",
+            "useDataStore": true,
+            "dataStoreClass": "org.cofax.SqlDataStore",
+            "redirectionClass": "org.cofax.SqlRedirection",
+            "dataStoreName": "cofax",
+            "dataStoreDriver": "com.microsoft.jdbc.sqlserver.SQLServerDriver",
+            "dataStoreUrl": "jdbc:microsoft:sqlserver://LOCALHOST:1433;DatabaseName=goon",
+            "dataStoreUser": "sa",
+            "dataStorePassword": "dataStoreTestQuery",
+            "dataStoreTestQuery": "SET NOCOUNT ON;select test='test';",
+            "dataStoreLogFile": "/usr/local/tomcat/logs/datastore.log",
+            "dataStoreInitConns": 10,
+            "dataStoreMaxConns": 100,
+            "dataStoreConnUsageLimit": 100,
+            "dataStoreLogLevel": "debug",
+            "maxUrlLength": 500
+          }
+        },
+        {
+          "servlet-name": "cofaxEmail",
+          "servlet-class": "org.cofax.cds.EmailServlet",
+          "init-param": {
+            "mailHost": "mail1",
+            "mailHostOverride": "mail2"
+          }
+        },
+        {
+          "servlet-name": "cofaxAdmin",
+          "servlet-class": "org.cofax.cds.AdminServlet"
+        },
+        {
+          "servlet-name": "fileServlet",
+          "servlet-class": "org.cofax.cds.FileServlet"
+        },
+        {
+          "servlet-name": "cofaxTools",
+          "servlet-class": "org.cofax.cms.CofaxToolsServlet",
+          "init-param": {
+            "templatePath": "toolstemplates/",
+            "log": 1,
+            "logLocation": "/usr/local/tomcat/logs/CofaxTools.log",
+            "logMaxSize": "",
+            "dataLog": 1,
+            "dataLogLocation": "/usr/local/tomcat/logs/dataLog.log",
+            "dataLogMaxSize": "",
+            "removePageCache": "/content/admin/remove?cache=pages&id=",
+            "removeTemplateCache": "/content/admin/remove?cache=templates&id=",
+            "fileTransferFolder": "/usr/local/tomcat/webapps/content/fileTransferFolder",
+            "lookInContext": 1,
+            "adminGroupID": 4,
+            "betaServer": true
+          }
+        }
+      ],
+      "servlet-mapping": {
+        "cofaxCDS": "/",
+        "cofaxEmail": "/cofaxutil/aemail/*",
+        "cofaxAdmin": "/admin/*",
+        "fileServlet": "/static/*",
+        "cofaxTools": "/tools/*"
+      },
+      "taglib": {
+        "taglib-uri": "cofax.tld",
+        "taglib-location": "/WEB-INF/tlds/cofax.tld"
+      }
+    }
+  },
+  "test5": {
+    "menu": {
+      "header": "SVG Viewer",
+      "items": [
+        {
+          "id": "Open"
+        },
+        {
+          "id": "OpenNew",
+          "label": "Open New"
+        },
+        null,
+        {
+          "id": "ZoomIn",
+          "label": "Zoom In"
+        },
+        {
+          "id": "ZoomOut",
+          "label": "Zoom Out"
+        },
+        {
+          "id": "OriginalView",
+          "label": "Original View"
+        },
+        null,
+        {
+          "id": "Quality"
+        },
+        {
+          "id": "Pause"
+        },
+        {
+          "id": "Mute"
+        },
+        null,
+        {
+          "id": "Find",
+          "label": "Find..."
+        },
+        {
+          "id": "FindAgain",
+          "label": "Find Again"
+        },
+        {
+          "id": "Copy"
+        },
+        {
+          "id": "CopyAgain",
+          "label": "Copy Again"
+        },
+        {
+          "id": "CopySVG",
+          "label": "Copy SVG"
+        },
+        {
+          "id": "ViewSVG",
+          "label": "View SVG"
+        },
+        {
+          "id": "ViewSource",
+          "label": "View Source"
+        },
+        {
+          "id": "SaveAs",
+          "label": "Save As"
+        },
+        null,
+        {
+          "id": "Help"
+        },
+        {
+          "id": "About",
+          "label": "About Adobe CVG Viewer..."
+        }
+      ]
+    }
+  }
+}

test/core/security/credentials_test.c

@@ -55,23 +55,23 @@ static const char test_root_cert[] = "I am the root!";
    Maximum size for a string literal is 509 chars in C89, yay!  */
 static const char test_json_key_str_part1[] =
     "{ \"private_key\": \"-----BEGIN PRIVATE KEY-----"
-    "\nMIICeAIBADANBgkqhkiG9w0BAQEFAASCAmIwggJeAgEAAoGBAOEvJsnoHnyHkXcp\n7mJEqg"
-    "WGjiw71NfXByguekSKho65FxaGbsnSM9SMQAqVk7Q2rG+I0OpsT0LrWQtZ\nyjSeg/"
+    "\\nMIICeAIBADANBgkqhkiG9w0BAQEFAASCAmIwggJeAgEAAoGBAOEvJsnoHnyHkXcp\\n7mJEqg"
+    "WGjiw71NfXByguekSKho65FxaGbsnSM9SMQAqVk7Q2rG+I0OpsT0LrWQtZ\\nyjSeg/"
     "rWBQvS4hle4LfijkP3J5BG+"
-    "IXDMP8RfziNRQsenAXDNPkY4kJCvKux2xdD\nOnVF6N7dL3nTYZg+"
-    "uQrNsMTz9UxVAgMBAAECgYEAzbLewe1xe9vy+2GoSsfib+28\nDZgSE6Bu/"
-    "zuFoPrRc6qL9p2SsnV7txrunTyJkkOnPLND9ABAXybRTlcVKP/sGgza\n/"
+    "IXDMP8RfziNRQsenAXDNPkY4kJCvKux2xdD\\nOnVF6N7dL3nTYZg+"
+    "uQrNsMTz9UxVAgMBAAECgYEAzbLewe1xe9vy+2GoSsfib+28\\nDZgSE6Bu/"
+    "zuFoPrRc6qL9p2SsnV7txrunTyJkkOnPLND9ABAXybRTlcVKP/sGgza\\n/"
     "8HpCqFYM9V8f34SBWfD4fRFT+n/"
-    "73cfRUtGXdXpseva2lh8RilIQfPhNZAncenU\ngqXjDvpkypEusgXAykECQQD+";
+    "73cfRUtGXdXpseva2lh8RilIQfPhNZAncenU\\ngqXjDvpkypEusgXAykECQQD+";
 static const char test_json_key_str_part2[] =
-    "53XxNVnxBHsYb+AYEfklR96yVi8HywjVHP34+OQZ\nCslxoHQM8s+"
-    "dBnjfScLu22JqkPv04xyxmt0QAKm9+vTdAkEA4ib7YvEAn2jXzcCI\nEkoy2L/"
-    "XydR1GCHoacdfdAwiL2npOdnbvi4ZmdYRPY1LSTO058tQHKVXV7NLeCa3\nAARh2QJBAMKeDAG"
-    "W303SQv2cZTdbeaLKJbB5drz3eo3j7dDKjrTD9JupixFbzcGw\n8FZi5c8idxiwC36kbAL6HzA"
-    "ZoX+ofI0CQE6KCzPJTtYNqyShgKAZdJ8hwOcvCZtf\n6z8RJm0+"
+    "53XxNVnxBHsYb+AYEfklR96yVi8HywjVHP34+OQZ\\nCslxoHQM8s+"
+    "dBnjfScLu22JqkPv04xyxmt0QAKm9+vTdAkEA4ib7YvEAn2jXzcCI\\nEkoy2L/"
+    "XydR1GCHoacdfdAwiL2npOdnbvi4ZmdYRPY1LSTO058tQHKVXV7NLeCa3\\nAARh2QJBAMKeDAG"
+    "W303SQv2cZTdbeaLKJbB5drz3eo3j7dDKjrTD9JupixFbzcGw\\n8FZi5c8idxiwC36kbAL6HzA"
+    "ZoX+ofI0CQE6KCzPJTtYNqyShgKAZdJ8hwOcvCZtf\\n6z8RJm0+"
     "6YBd38lfh5j8mZd7aHFf6I17j5AQY7oPEc47TjJj/"
-    "5nZ68ECQQDvYuI3\nLyK5fS8g0SYbmPOL9TlcHDOqwG0mrX9qpg5DC2fniXNSrrZ64GTDKdzZY"
-    "Ap6LI9W\nIqv4vr6y38N79TTC\n-----END PRIVATE KEY-----\n\", ";
+    "5nZ68ECQQDvYuI3\\nLyK5fS8g0SYbmPOL9TlcHDOqwG0mrX9qpg5DC2fniXNSrrZ64GTDKdzZY"
+    "Ap6LI9W\\nIqv4vr6y38N79TTC\\n-----END PRIVATE KEY-----\\n\", ";
 static const char test_json_key_str_part3[] =
     "\"private_key_id\": \"e6b5137873db8d2ef81e06a47289e6434ec8a165\", "
     "\"client_email\": "

test/core/security/json_token_test.c

@@ -41,7 +41,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/slice.h>
 #include "test/core/util/test_config.h"
-#include "third_party/cJSON/cJSON.h"
+#include "src/core/json/json.h"
 #include <openssl/evp.h>
 
 /* This JSON key was generated with the GCE console and revoked immediately.
@@ -49,23 +49,23 @@
    Maximum size for a string literal is 509 chars in C89, yay!  */
 static const char test_json_key_str_part1[] =
     "{ \"private_key\": \"-----BEGIN PRIVATE KEY-----"
-    "\nMIICeAIBADANBgkqhkiG9w0BAQEFAASCAmIwggJeAgEAAoGBAOEvJsnoHnyHkXcp\n7mJEqg"
-    "WGjiw71NfXByguekSKho65FxaGbsnSM9SMQAqVk7Q2rG+I0OpsT0LrWQtZ\nyjSeg/"
+    "\\nMIICeAIBADANBgkqhkiG9w0BAQEFAASCAmIwggJeAgEAAoGBAOEvJsnoHnyHkXcp\\n7mJEqg"
+    "WGjiw71NfXByguekSKho65FxaGbsnSM9SMQAqVk7Q2rG+I0OpsT0LrWQtZ\\nyjSeg/"
     "rWBQvS4hle4LfijkP3J5BG+"
-    "IXDMP8RfziNRQsenAXDNPkY4kJCvKux2xdD\nOnVF6N7dL3nTYZg+"
-    "uQrNsMTz9UxVAgMBAAECgYEAzbLewe1xe9vy+2GoSsfib+28\nDZgSE6Bu/"
-    "zuFoPrRc6qL9p2SsnV7txrunTyJkkOnPLND9ABAXybRTlcVKP/sGgza\n/"
+    "IXDMP8RfziNRQsenAXDNPkY4kJCvKux2xdD\\nOnVF6N7dL3nTYZg+"
+    "uQrNsMTz9UxVAgMBAAECgYEAzbLewe1xe9vy+2GoSsfib+28\\nDZgSE6Bu/"
+    "zuFoPrRc6qL9p2SsnV7txrunTyJkkOnPLND9ABAXybRTlcVKP/sGgza\\n/"
     "8HpCqFYM9V8f34SBWfD4fRFT+n/"
-    "73cfRUtGXdXpseva2lh8RilIQfPhNZAncenU\ngqXjDvpkypEusgXAykECQQD+";
+    "73cfRUtGXdXpseva2lh8RilIQfPhNZAncenU\\ngqXjDvpkypEusgXAykECQQD+";
 static const char test_json_key_str_part2[] =
-    "53XxNVnxBHsYb+AYEfklR96yVi8HywjVHP34+OQZ\nCslxoHQM8s+"
-    "dBnjfScLu22JqkPv04xyxmt0QAKm9+vTdAkEA4ib7YvEAn2jXzcCI\nEkoy2L/"
-    "XydR1GCHoacdfdAwiL2npOdnbvi4ZmdYRPY1LSTO058tQHKVXV7NLeCa3\nAARh2QJBAMKeDAG"
-    "W303SQv2cZTdbeaLKJbB5drz3eo3j7dDKjrTD9JupixFbzcGw\n8FZi5c8idxiwC36kbAL6HzA"
-    "ZoX+ofI0CQE6KCzPJTtYNqyShgKAZdJ8hwOcvCZtf\n6z8RJm0+"
+    "53XxNVnxBHsYb+AYEfklR96yVi8HywjVHP34+OQZ\\nCslxoHQM8s+"
+    "dBnjfScLu22JqkPv04xyxmt0QAKm9+vTdAkEA4ib7YvEAn2jXzcCI\\nEkoy2L/"
+    "XydR1GCHoacdfdAwiL2npOdnbvi4ZmdYRPY1LSTO058tQHKVXV7NLeCa3\\nAARh2QJBAMKeDAG"
+    "W303SQv2cZTdbeaLKJbB5drz3eo3j7dDKjrTD9JupixFbzcGw\\n8FZi5c8idxiwC36kbAL6HzA"
+    "ZoX+ofI0CQE6KCzPJTtYNqyShgKAZdJ8hwOcvCZtf\\n6z8RJm0+"
     "6YBd38lfh5j8mZd7aHFf6I17j5AQY7oPEc47TjJj/"
-    "5nZ68ECQQDvYuI3\nLyK5fS8g0SYbmPOL9TlcHDOqwG0mrX9qpg5DC2fniXNSrrZ64GTDKdzZY"
-    "Ap6LI9W\nIqv4vr6y38N79TTC\n-----END PRIVATE KEY-----\n\", ";
+    "5nZ68ECQQDvYuI3\\nLyK5fS8g0SYbmPOL9TlcHDOqwG0mrX9qpg5DC2fniXNSrrZ64GTDKdzZY"
+    "Ap6LI9W\\nIqv4vr6y38N79TTC\\n-----END PRIVATE KEY-----\\n\", ";
 static const char test_json_key_str_part3[] =
     "\"private_key_id\": \"e6b5137873db8d2ef81e06a47289e6434ec8a165\", "
     "\"client_email\": "
@@ -203,10 +203,11 @@ static void test_parse_json_key_failure_no_private_key(void) {
   grpc_auth_json_key_destruct(&json_key);
 }
 
-static cJSON *parse_json_part_from_jwt(const char *str, size_t len) {
+static grpc_json *parse_json_part_from_jwt(const char *str, size_t len,
+                                           char **scratchpad) {
   char *b64;
   char *decoded;
-  cJSON *json;
+  grpc_json *json;
   gpr_slice slice;
   b64 = gpr_malloc(len + 1);
   strncpy(b64, str, len);
@@ -217,59 +218,84 @@ static cJSON *parse_json_part_from_jwt(const char *str, size_t len) {
   strncpy(decoded, (const char *)GPR_SLICE_START_PTR(slice),
           GPR_SLICE_LENGTH(slice));
   decoded[GPR_SLICE_LENGTH(slice)] = '\0';
-  json = cJSON_Parse(decoded);
+  json = grpc_json_parse_string(decoded);
   gpr_free(b64);
-  gpr_free(decoded);
+  *scratchpad = decoded;
   gpr_slice_unref(slice);
   return json;
 }
 
-static void check_jwt_header(cJSON *header) {
-  cJSON *child = cJSON_GetObjectItem(header, "alg");
-  GPR_ASSERT(child != NULL);
-  GPR_ASSERT(child->type == cJSON_String);
-  GPR_ASSERT(!strcmp(child->valuestring, "RS256"));
-
-  child = cJSON_GetObjectItem(header, "typ");
-  GPR_ASSERT(child != NULL);
-  GPR_ASSERT(child->type == cJSON_String);
-  GPR_ASSERT(!strcmp(child->valuestring, "JWT"));
+static void check_jwt_header(grpc_json *header) {
+  grpc_json *ptr;
+  grpc_json *alg = NULL;
+  grpc_json *typ = NULL;
+
+  for (ptr = header->child; ptr; ptr = ptr->next) {
+    if (strcmp(ptr->key, "alg") == 0) {
+      alg = ptr;
+    } else if (strcmp(ptr->key, "typ") == 0) {
+      typ = ptr;
+    }
+  }
+  GPR_ASSERT(alg != NULL);
+  GPR_ASSERT(alg->type == GRPC_JSON_STRING);
+  GPR_ASSERT(!strcmp(alg->value, "RS256"));
+
+  GPR_ASSERT(typ != NULL);
+  GPR_ASSERT(typ->type == GRPC_JSON_STRING);
+  GPR_ASSERT(!strcmp(typ->value, "JWT"));
 }
 
-static void check_jwt_claim(cJSON *claim) {
-  gpr_timespec exp = {0, 0};
+static void check_jwt_claim(grpc_json *claim) {
+  gpr_timespec expiration = {0, 0};
   gpr_timespec issue_time = {0, 0};
   gpr_timespec parsed_lifetime;
-  cJSON *child = cJSON_GetObjectItem(claim, "iss");
-  GPR_ASSERT(child != NULL);
-  GPR_ASSERT(child->type == cJSON_String);
+  grpc_json *iss = NULL;
+  grpc_json *scope = NULL;
+  grpc_json *aud = NULL;
+  grpc_json *exp = NULL;
+  grpc_json *iat = NULL;
+  grpc_json *ptr;
+
+  for (ptr = claim->child; ptr; ptr = ptr->next) {
+    if (strcmp(ptr->key, "iss") == 0) {
+      iss = ptr;
+    } else if (strcmp(ptr->key, "scope") == 0) {
+      scope = ptr;
+    } else if (strcmp(ptr->key, "aud") == 0) {
+      aud = ptr;
+    } else if (strcmp(ptr->key, "exp") == 0) {
+      exp = ptr;
+    } else if (strcmp(ptr->key, "iat") == 0) {
+      iat = ptr;
+    }
+  }
+
+  GPR_ASSERT(iss != NULL);
+  GPR_ASSERT(iss->type == GRPC_JSON_STRING);
   GPR_ASSERT(
       !strcmp(
-          child->valuestring,
+          iss->value,
           "777-abaslkan11hlb6nmim3bpspl31ud@developer.gserviceaccount.com"));
 
-  child = cJSON_GetObjectItem(claim, "scope");
-  GPR_ASSERT(child != NULL);
-  GPR_ASSERT(child->type == cJSON_String);
-  GPR_ASSERT(!strcmp(child->valuestring, test_scope));
+  GPR_ASSERT(scope != NULL);
+  GPR_ASSERT(scope->type == GRPC_JSON_STRING);
+  GPR_ASSERT(!strcmp(scope->value, test_scope));
 
-  child = cJSON_GetObjectItem(claim, "aud");
-  GPR_ASSERT(child != NULL);
-  GPR_ASSERT(child->type == cJSON_String);
-  GPR_ASSERT(!strcmp(child->valuestring,
+  GPR_ASSERT(aud != NULL);
+  GPR_ASSERT(aud->type == GRPC_JSON_STRING);
+  GPR_ASSERT(!strcmp(aud->value,
                      "https://www.googleapis.com/oauth2/v3/token"));
 
-  child = cJSON_GetObjectItem(claim, "exp");
-  GPR_ASSERT(child != NULL);
-  GPR_ASSERT(child->type == cJSON_Number);
-  exp.tv_sec = child->valueint;
+  GPR_ASSERT(exp != NULL);
+  GPR_ASSERT(exp->type == GRPC_JSON_NUMBER);
+  expiration.tv_sec = strtol(exp->value, NULL, 10);
 
-  child = cJSON_GetObjectItem(claim, "iat");
-  GPR_ASSERT(child != NULL);
-  GPR_ASSERT(child->type == cJSON_Number);
-  issue_time.tv_sec = child->valueint;
+  GPR_ASSERT(iat != NULL);
+  GPR_ASSERT(iat->type == GRPC_JSON_NUMBER);
+  issue_time.tv_sec = strtol(iat->value, NULL, 10);
 
-  parsed_lifetime = gpr_time_sub(exp, issue_time);
+  parsed_lifetime = gpr_time_sub(expiration, issue_time);
   GPR_ASSERT(parsed_lifetime.tv_sec == grpc_max_auth_token_lifetime.tv_sec);
 }
 
@@ -300,8 +326,9 @@ static void check_jwt_signature(const char *b64_signature, RSA *rsa_key,
 
 static void test_jwt_encode_and_sign(void) {
   char *json_string = test_json_key_str(NULL);
-  cJSON *parsed_header = NULL;
-  cJSON *parsed_claim = NULL;
+  grpc_json *parsed_header = NULL;
+  grpc_json *parsed_claim = NULL;
+  char *scratchpad;
   grpc_auth_json_key json_key =
       grpc_auth_json_key_create_from_string(json_string);
   const char *b64_signature;
@@ -310,17 +337,21 @@ static void test_jwt_encode_and_sign(void) {
                                        grpc_max_auth_token_lifetime);
   const char *dot = strchr(jwt, '.');
   GPR_ASSERT(dot != NULL);
-  parsed_header = parse_json_part_from_jwt(jwt, dot - jwt);
+  parsed_header = parse_json_part_from_jwt(jwt, dot - jwt, &scratchpad);
   GPR_ASSERT(parsed_header != NULL);
   check_jwt_header(parsed_header);
   offset = dot - jwt + 1;
+  grpc_json_destroy(parsed_header);
+  gpr_free(scratchpad);
 
   dot = strchr(jwt + offset, '.');
   GPR_ASSERT(dot != NULL);
-  parsed_claim = parse_json_part_from_jwt(jwt + offset, dot - (jwt + offset));
+  parsed_claim = parse_json_part_from_jwt(jwt + offset, dot - (jwt + offset), &scratchpad);
   GPR_ASSERT(parsed_claim != NULL);
   check_jwt_claim(parsed_claim);
   offset = dot - jwt + 1;
+  grpc_json_destroy(parsed_claim);
+  gpr_free(scratchpad);
 
   dot = strchr(jwt + offset, '.');
   GPR_ASSERT(dot == NULL); /* no more part. */
@@ -328,8 +359,6 @@ static void test_jwt_encode_and_sign(void) {
   check_jwt_signature(b64_signature, json_key.private_key, jwt, offset - 1);
 
   gpr_free(json_string);
-  cJSON_Delete(parsed_header);
-  cJSON_Delete(parsed_claim);
   grpc_auth_json_key_destruct(&json_key);
   gpr_free(jwt);
 }

third_party/cJSON/LICENSE

@@ -1,20 +0,0 @@
-  Copyright (c) 2009 Dave Gamble
- 
-  Permission is hereby granted, free of charge, to any person obtaining a copy
-  of this software and associated documentation files (the "Software"), to deal
-  in the Software without restriction, including without limitation the rights
-  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-  copies of the Software, and to permit persons to whom the Software is
-  furnished to do so, subject to the following conditions:
- 
-  The above copyright notice and this permission notice shall be included in
-  all copies or substantial portions of the Software.
- 
-  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-  THE SOFTWARE.
-

third_party/cJSON/README

@@ -1,247 +0,0 @@
-/*
-  Copyright (c) 2009 Dave Gamble
-
-  Permission is hereby granted, free of charge, to any person obtaining a copy
-  of this software and associated documentation files (the "Software"), to deal
-  in the Software without restriction, including without limitation the rights
-  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-  copies of the Software, and to permit persons to whom the Software is
-  furnished to do so, subject to the following conditions:
-
-  The above copyright notice and this permission notice shall be included in
-  all copies or substantial portions of the Software.
-
-  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-  THE SOFTWARE.
-*/
-
-Welcome to cJSON.
-
-cJSON aims to be the dumbest possible parser that you can get your job done with.
-It's a single file of C, and a single header file.
-
-JSON is described best here: http://www.json.org/
-It's like XML, but fat-free. You use it to move data around, store things, or just
-generally represent your program's state.
-
-
-First up, how do I build?
-Add cJSON.c to your project, and put cJSON.h somewhere in the header search path.
-For example, to build the test app:
-
-gcc cJSON.c test.c -o test -lm
-./test
-
-
-As a library, cJSON exists to take away as much legwork as it can, but not get in your way.
-As a point of pragmatism (i.e. ignoring the truth), I'm going to say that you can use it
-in one of two modes: Auto and Manual. Let's have a quick run-through.
-
-
-I lifted some JSON from this page: http://www.json.org/fatfree.html
-That page inspired me to write cJSON, which is a parser that tries to share the same
-philosophy as JSON itself. Simple, dumb, out of the way.
-
-Some JSON:
-{
-    "name": "Jack (\"Bee\") Nimble", 
-    "format": {
-        "type":       "rect", 
-        "width":      1920, 
-        "height":     1080, 
-        "interlace":  false, 
-        "frame rate": 24
-    }
-}
-
-Assume that you got this from a file, a webserver, or magic JSON elves, whatever,
-you have a char * to it. Everything is a cJSON struct.
-Get it parsed:
-	cJSON *root = cJSON_Parse(my_json_string);
-
-This is an object. We're in C. We don't have objects. But we do have structs.
-What's the framerate?
-
-	cJSON *format = cJSON_GetObjectItem(root,"format");
-	int framerate = cJSON_GetObjectItem(format,"frame rate")->valueint;
-
-
-Want to change the framerate?
-	cJSON_GetObjectItem(format,"frame rate")->valueint=25;
-	
-Back to disk?
-	char *rendered=cJSON_Print(root);
-
-Finished? Delete the root (this takes care of everything else).
-	cJSON_Delete(root);
-
-That's AUTO mode. If you're going to use Auto mode, you really ought to check pointers
-before you dereference them. If you want to see how you'd build this struct in code?
-	cJSON *root,*fmt;
-	root=cJSON_CreateObject();	
-	cJSON_AddItemToObject(root, "name", cJSON_CreateString("Jack (\"Bee\") Nimble"));
-	cJSON_AddItemToObject(root, "format", fmt=cJSON_CreateObject());
-	cJSON_AddStringToObject(fmt,"type",		"rect");
-	cJSON_AddNumberToObject(fmt,"width",		1920);
-	cJSON_AddNumberToObject(fmt,"height",		1080);
-	cJSON_AddFalseToObject (fmt,"interlace");
-	cJSON_AddNumberToObject(fmt,"frame rate",	24);
-
-Hopefully we can agree that's not a lot of code? There's no overhead, no unnecessary setup.
-Look at test.c for a bunch of nice examples, mostly all ripped off the json.org site, and
-a few from elsewhere.
-
-What about manual mode? First up you need some detail.
-Let's cover how the cJSON objects represent the JSON data.
-cJSON doesn't distinguish arrays from objects in handling; just type.
-Each cJSON has, potentially, a child, siblings, value, a name.
-
-The root object has: Object Type and a Child
-The Child has name "name", with value "Jack ("Bee") Nimble", and a sibling:
-Sibling has type Object, name "format", and a child.
-That child has type String, name "type", value "rect", and a sibling:
-Sibling has type Number, name "width", value 1920, and a sibling:
-Sibling has type Number, name "height", value 1080, and a sibling:
-Sibling hs type False, name "interlace", and a sibling:
-Sibling has type Number, name "frame rate", value 24
-
-Here's the structure:
-typedef struct cJSON {
-	struct cJSON *next,*prev;
-	struct cJSON *child;
-
-	int type;
-
-	char *valuestring;
-	int valueint;
-	double valuedouble;
-
-	char *string;
-} cJSON;
-
-By default all values are 0 unless set by virtue of being meaningful.
-
-next/prev is a doubly linked list of siblings. next takes you to your sibling,
-prev takes you back from your sibling to you.
-Only objects and arrays have a "child", and it's the head of the doubly linked list.
-A "child" entry will have prev==0, but next potentially points on. The last sibling has next=0.
-The type expresses Null/True/False/Number/String/Array/Object, all of which are #defined in
-cJSON.h
-
-A Number has valueint and valuedouble. If you're expecting an int, read valueint, if not read
-valuedouble.
-
-Any entry which is in the linked list which is the child of an object will have a "string"
-which is the "name" of the entry. When I said "name" in the above example, that's "string".
-"string" is the JSON name for the 'variable name' if you will.
-
-Now you can trivially walk the lists, recursively, and parse as you please.
-You can invoke cJSON_Parse to get cJSON to parse for you, and then you can take
-the root object, and traverse the structure (which is, formally, an N-tree),
-and tokenise as you please. If you wanted to build a callback style parser, this is how
-you'd do it (just an example, since these things are very specific):
-
-void parse_and_callback(cJSON *item,const char *prefix)
-{
-	while (item)
-	{
-		char *newprefix=malloc(strlen(prefix)+strlen(item->name)+2);
-		sprintf(newprefix,"%s/%s",prefix,item->name);
-		int dorecurse=callback(newprefix, item->type, item);
-		if (item->child && dorecurse) parse_and_callback(item->child,newprefix);
-		item=item->next;
-		free(newprefix);
-	}
-}
-
-The prefix process will build you a separated list, to simplify your callback handling.
-The 'dorecurse' flag would let the callback decide to handle sub-arrays on it's own, or
-let you invoke it per-item. For the item above, your callback might look like this:
-
-int callback(const char *name,int type,cJSON *item)
-{
-	if (!strcmp(name,"name"))	{ /* populate name */ }
-	else if (!strcmp(name,"format/type")	{ /* handle "rect" */ }
-	else if (!strcmp(name,"format/width")	{ /* 800 */ }
-	else if (!strcmp(name,"format/height")	{ /* 600 */ }
-	else if (!strcmp(name,"format/interlace")	{ /* false */ }
-	else if (!strcmp(name,"format/frame rate")	{ /* 24 */ }
-	return 1;
-}
-
-Alternatively, you might like to parse iteratively.
-You'd use:
-
-void parse_object(cJSON *item)
-{
-	int i; for (i=0;i<cJSON_GetArraySize(item);i++)
-	{
-		cJSON *subitem=cJSON_GetArrayItem(item,i);
-		// handle subitem.	
-	}
-}
-
-Or, for PROPER manual mode:
-
-void parse_object(cJSON *item)
-{
-	cJSON *subitem=item->child;
-	while (subitem)
-	{
-		// handle subitem
-		if (subitem->child) parse_object(subitem->child);
-		
-		subitem=subitem->next;
-	}
-}
-
-Of course, this should look familiar, since this is just a stripped-down version
-of the callback-parser.
-
-This should cover most uses you'll find for parsing. The rest should be possible
-to infer.. and if in doubt, read the source! There's not a lot of it! ;)
-
-
-In terms of constructing JSON data, the example code above is the right way to do it.
-You can, of course, hand your sub-objects to other functions to populate.
-Also, if you find a use for it, you can manually build the objects.
-For instance, suppose you wanted to build an array of objects?
-
-cJSON *objects[24];
-
-cJSON *Create_array_of_anything(cJSON **items,int num)
-{
-	int i;cJSON *prev, *root=cJSON_CreateArray();
-	for (i=0;i<24;i++)
-	{
-		if (!i)	root->child=objects[i];
-		else	prev->next=objects[i], objects[i]->prev=prev;
-		prev=objects[i];
-	}
-	return root;
-}
-	
-and simply: Create_array_of_anything(objects,24);
-
-cJSON doesn't make any assumptions about what order you create things in.
-You can attach the objects, as above, and later add children to each
-of those objects.
-
-As soon as you call cJSON_Print, it renders the structure to text.
-
-
-
-The test.c code shows how to handle a bunch of typical cases. If you uncomment
-the code, it'll load, parse and print a bunch of test files, also from json.org,
-which are more complex than I'd care to try and stash into a const char array[].
-
-
-Enjoy cJSON!
-
-
-- Dave Gamble, Aug 2009

third_party/cJSON/cJSON.c

@@ -1,596 +0,0 @@
-/*
-  Copyright (c) 2009 Dave Gamble
-
-  Permission is hereby granted, free of charge, to any person obtaining a copy
-  of this software and associated documentation files (the "Software"), to deal
-  in the Software without restriction, including without limitation the rights
-  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-  copies of the Software, and to permit persons to whom the Software is
-  furnished to do so, subject to the following conditions:
-
-  The above copyright notice and this permission notice shall be included in
-  all copies or substantial portions of the Software.
-
-  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-  THE SOFTWARE.
-*/
-
-/* cJSON */
-/* JSON parser in C. */
-
-#include <string.h>
-#include <stdio.h>
-#include <math.h>
-#include <stdlib.h>
-#include <float.h>
-#include <limits.h>
-#include <ctype.h>
-#include "cJSON.h"
-
-static const char *ep;
-
-const char *cJSON_GetErrorPtr(void) {return ep;}
-
-static int cJSON_strcasecmp(const char *s1,const char *s2)
-{
-	if (!s1) return (s1==s2)?0:1;if (!s2) return 1;
-	for(; tolower(*s1) == tolower(*s2); ++s1, ++s2)	if(*s1 == 0)	return 0;
-	return tolower(*(const unsigned char *)s1) - tolower(*(const unsigned char *)s2);
-}
-
-static void *(*cJSON_malloc)(size_t sz) = malloc;
-static void (*cJSON_free)(void *ptr) = free;
-
-static char* cJSON_strdup(const char* str)
-{
-      size_t len;
-      char* copy;
-
-      len = strlen(str) + 1;
-      if (!(copy = (char*)cJSON_malloc(len))) return 0;
-      memcpy(copy,str,len);
-      return copy;
-}
-
-void cJSON_InitHooks(cJSON_Hooks* hooks)
-{
-    if (!hooks) { /* Reset hooks */
-        cJSON_malloc = malloc;
-        cJSON_free = free;
-        return;
-    }
-
-	cJSON_malloc = (hooks->malloc_fn)?hooks->malloc_fn:malloc;
-	cJSON_free	 = (hooks->free_fn)?hooks->free_fn:free;
-}
-
-/* Internal constructor. */
-static cJSON *cJSON_New_Item(void)
-{
-	cJSON* node = (cJSON*)cJSON_malloc(sizeof(cJSON));
-	if (node) memset(node,0,sizeof(cJSON));
-	return node;
-}
-
-/* Delete a cJSON structure. */
-void cJSON_Delete(cJSON *c)
-{
-	cJSON *next;
-	while (c)
-	{
-		next=c->next;
-		if (!(c->type&cJSON_IsReference) && c->child) cJSON_Delete(c->child);
-		if (!(c->type&cJSON_IsReference) && c->valuestring) cJSON_free(c->valuestring);
-		if (c->string) cJSON_free(c->string);
-		cJSON_free(c);
-		c=next;
-	}
-}
-
-/* Parse the input text to generate a number, and populate the result into item. */
-static const char *parse_number(cJSON *item,const char *num)
-{
-	double n=0,sign=1,scale=0;int subscale=0,signsubscale=1;
-
-	if (*num=='-') sign=-1,num++;	/* Has sign? */
-	if (*num=='0') num++;			/* is zero */
-	if (*num>='1' && *num<='9')	do	n=(n*10.0)+(*num++ -'0');	while (*num>='0' && *num<='9');	/* Number? */
-	if (*num=='.' && num[1]>='0' && num[1]<='9') {num++;		do	n=(n*10.0)+(*num++ -'0'),scale--; while (*num>='0' && *num<='9');}	/* Fractional part? */
-	if (*num=='e' || *num=='E')		/* Exponent? */
-	{	num++;if (*num=='+') num++;	else if (*num=='-') signsubscale=-1,num++;		/* With sign? */
-		while (*num>='0' && *num<='9') subscale=(subscale*10)+(*num++ - '0');	/* Number? */
-	}
-
-	n=sign*n*pow(10.0,(scale+subscale*signsubscale));	/* number = +/- number.fraction * 10^+/- exponent */
-	
-	item->valuedouble=n;
-	item->valueint=(int)n;
-	item->type=cJSON_Number;
-	return num;
-}
-
-/* Render the number nicely from the given item into a string. */
-static char *print_number(cJSON *item)
-{
-	char *str;
-	double d=item->valuedouble;
-	if (fabs(((double)item->valueint)-d)<=DBL_EPSILON && d<=INT_MAX && d>=INT_MIN)
-	{
-		str=(char*)cJSON_malloc(21);	/* 2^64+1 can be represented in 21 chars. */
-		if (str) sprintf(str,"%d",item->valueint);
-	}
-	else
-	{
-		str=(char*)cJSON_malloc(64);	/* This is a nice tradeoff. */
-		if (str)
-		{
-			if (fabs(floor(d)-d)<=DBL_EPSILON && fabs(d)<1.0e60)sprintf(str,"%.0f",d);
-			else if (fabs(d)<1.0e-6 || fabs(d)>1.0e9)			sprintf(str,"%e",d);
-			else												sprintf(str,"%f",d);
-		}
-	}
-	return str;
-}
-
-static unsigned parse_hex4(const char *str)
-{
-	unsigned h=0;
-	if (*str>='0' && *str<='9') h+=(*str)-'0'; else if (*str>='A' && *str<='F') h+=10+(*str)-'A'; else if (*str>='a' && *str<='f') h+=10+(*str)-'a'; else return 0;
-	h=h<<4;str++;
-	if (*str>='0' && *str<='9') h+=(*str)-'0'; else if (*str>='A' && *str<='F') h+=10+(*str)-'A'; else if (*str>='a' && *str<='f') h+=10+(*str)-'a'; else return 0;
-	h=h<<4;str++;
-	if (*str>='0' && *str<='9') h+=(*str)-'0'; else if (*str>='A' && *str<='F') h+=10+(*str)-'A'; else if (*str>='a' && *str<='f') h+=10+(*str)-'a'; else return 0;
-	h=h<<4;str++;
-	if (*str>='0' && *str<='9') h+=(*str)-'0'; else if (*str>='A' && *str<='F') h+=10+(*str)-'A'; else if (*str>='a' && *str<='f') h+=10+(*str)-'a'; else return 0;
-	return h;
-}
-
-/* Parse the input text into an unescaped cstring, and populate item. */
-static const unsigned char firstByteMark[7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC };
-static const char *parse_string(cJSON *item,const char *str)
-{
-	const char *ptr=str+1;char *ptr2;char *out;int len=0;unsigned uc,uc2;
-	if (*str!='\"') {ep=str;return 0;}	/* not a string! */
-	
-	while (*ptr!='\"' && *ptr && ++len) if (*ptr++ == '\\') ptr++;	/* Skip escaped quotes. */
-	
-	out=(char*)cJSON_malloc(len+1);	/* This is how long we need for the string, roughly. */
-	if (!out) return 0;
-	
-	ptr=str+1;ptr2=out;
-	while (*ptr!='\"' && *ptr)
-	{
-		if (*ptr!='\\') *ptr2++=*ptr++;
-		else
-		{
-			ptr++;
-			switch (*ptr)
-			{
-				case 'b': *ptr2++='\b';	break;
-				case 'f': *ptr2++='\f';	break;
-				case 'n': *ptr2++='\n';	break;
-				case 'r': *ptr2++='\r';	break;
-				case 't': *ptr2++='\t';	break;
-				case 'u':	 /* transcode utf16 to utf8. */
-					uc=parse_hex4(ptr+1);ptr+=4;	/* get the unicode char. */
-
-					if ((uc>=0xDC00 && uc<=0xDFFF) || uc==0)	break;	/* check for invalid.	*/
-
-					if (uc>=0xD800 && uc<=0xDBFF)	/* UTF16 surrogate pairs.	*/
-					{
-						if (ptr[1]!='\\' || ptr[2]!='u')	break;	/* missing second-half of surrogate.	*/
-						uc2=parse_hex4(ptr+3);ptr+=6;
-						if (uc2<0xDC00 || uc2>0xDFFF)		break;	/* invalid second-half of surrogate.	*/
-						uc=0x10000 + (((uc&0x3FF)<<10) | (uc2&0x3FF));
-					}
-
-					len=4;if (uc<0x80) len=1;else if (uc<0x800) len=2;else if (uc<0x10000) len=3; ptr2+=len;
-					
-					switch (len) {
-						case 4: *--ptr2 =((uc | 0x80) & 0xBF); uc >>= 6;
-						case 3: *--ptr2 =((uc | 0x80) & 0xBF); uc >>= 6;
-						case 2: *--ptr2 =((uc | 0x80) & 0xBF); uc >>= 6;
-						case 1: *--ptr2 =(uc | firstByteMark[len]);
-					}
-					ptr2+=len;
-					break;
-				default:  *ptr2++=*ptr; break;
-			}
-			ptr++;
-		}
-	}
-	*ptr2=0;
-	if (*ptr=='\"') ptr++;
-	item->valuestring=out;
-	item->type=cJSON_String;
-	return ptr;
-}
-
-/* Render the cstring provided to an escaped version that can be printed. */
-static char *print_string_ptr(const char *str)
-{
-	const char *ptr;char *ptr2,*out;int len=0;unsigned char token;
-	
-	if (!str) return cJSON_strdup("");
-	ptr=str;while ((token=*ptr) && ++len) {if (strchr("\"\\\b\f\n\r\t",token)) len++; else if (token<32) len+=5;ptr++;}
-	
-	out=(char*)cJSON_malloc(len+3);
-	if (!out) return 0;
-
-	ptr2=out;ptr=str;
-	*ptr2++='\"';
-	while (*ptr)
-	{
-		if ((unsigned char)*ptr>31 && *ptr!='\"' && *ptr!='\\') *ptr2++=*ptr++;
-		else
-		{
-			*ptr2++='\\';
-			switch (token=*ptr++)
-			{
-				case '\\':	*ptr2++='\\';	break;
-				case '\"':	*ptr2++='\"';	break;
-				case '\b':	*ptr2++='b';	break;
-				case '\f':	*ptr2++='f';	break;
-				case '\n':	*ptr2++='n';	break;
-				case '\r':	*ptr2++='r';	break;
-				case '\t':	*ptr2++='t';	break;
-				default: sprintf(ptr2,"u%04x",token);ptr2+=5;	break;	/* escape and print */
-			}
-		}
-	}
-	*ptr2++='\"';*ptr2++=0;
-	return out;
-}
-/* Invote print_string_ptr (which is useful) on an item. */
-static char *print_string(cJSON *item)	{return print_string_ptr(item->valuestring);}
-
-/* Predeclare these prototypes. */
-static const char *parse_value(cJSON *item,const char *value);
-static char *print_value(cJSON *item,int depth,int fmt);
-static const char *parse_array(cJSON *item,const char *value);
-static char *print_array(cJSON *item,int depth,int fmt);
-static const char *parse_object(cJSON *item,const char *value);
-static char *print_object(cJSON *item,int depth,int fmt);
-
-/* Utility to jump whitespace and cr/lf */
-static const char *skip(const char *in) {while (in && *in && (unsigned char)*in<=32) in++; return in;}
-
-/* Parse an object - create a new root, and populate. */
-cJSON *cJSON_ParseWithOpts(const char *value,const char **return_parse_end,int require_null_terminated)
-{
-	const char *end=0;
-	cJSON *c=cJSON_New_Item();
-	ep=0;
-	if (!c) return 0;       /* memory fail */
-
-	end=parse_value(c,skip(value));
-	if (!end)	{cJSON_Delete(c);return 0;}	/* parse failure. ep is set. */
-
-	/* if we require null-terminated JSON without appended garbage, skip and then check for a null terminator */
-	if (require_null_terminated) {end=skip(end);if (*end) {cJSON_Delete(c);ep=end;return 0;}}
-	if (return_parse_end) *return_parse_end=end;
-	return c;
-}
-/* Default options for cJSON_Parse */
-cJSON *cJSON_Parse(const char *value) {return cJSON_ParseWithOpts(value,0,0);}
-
-/* Render a cJSON item/entity/structure to text. */
-char *cJSON_Print(cJSON *item)				{return print_value(item,0,1);}
-char *cJSON_PrintUnformatted(cJSON *item)	{return print_value(item,0,0);}
-
-/* Parser core - when encountering text, process appropriately. */
-static const char *parse_value(cJSON *item,const char *value)
-{
-	if (!value)						return 0;	/* Fail on null. */
-	if (!strncmp(value,"null",4))	{ item->type=cJSON_NULL;  return value+4; }
-	if (!strncmp(value,"false",5))	{ item->type=cJSON_False; return value+5; }
-	if (!strncmp(value,"true",4))	{ item->type=cJSON_True; item->valueint=1;	return value+4; }
-	if (*value=='\"')				{ return parse_string(item,value); }
-	if (*value=='-' || (*value>='0' && *value<='9'))	{ return parse_number(item,value); }
-	if (*value=='[')				{ return parse_array(item,value); }
-	if (*value=='{')				{ return parse_object(item,value); }
-
-	ep=value;return 0;	/* failure. */
-}
-
-/* Render a value to text. */
-static char *print_value(cJSON *item,int depth,int fmt)
-{
-	char *out=0;
-	if (!item) return 0;
-	switch ((item->type)&255)
-	{
-		case cJSON_NULL:	out=cJSON_strdup("null");	break;
-		case cJSON_False:	out=cJSON_strdup("false");break;
-		case cJSON_True:	out=cJSON_strdup("true"); break;
-		case cJSON_Number:	out=print_number(item);break;
-		case cJSON_String:	out=print_string(item);break;
-		case cJSON_Array:	out=print_array(item,depth,fmt);break;
-		case cJSON_Object:	out=print_object(item,depth,fmt);break;
-	}
-	return out;
-}
-
-/* Build an array from input text. */
-static const char *parse_array(cJSON *item,const char *value)
-{
-	cJSON *child;
-	if (*value!='[')	{ep=value;return 0;}	/* not an array! */
-
-	item->type=cJSON_Array;
-	value=skip(value+1);
-	if (*value==']') return value+1;	/* empty array. */
-
-	item->child=child=cJSON_New_Item();
-	if (!item->child) return 0;		 /* memory fail */
-	value=skip(parse_value(child,skip(value)));	/* skip any spacing, get the value. */
-	if (!value) return 0;
-
-	while (*value==',')
-	{
-		cJSON *new_item;
-		if (!(new_item=cJSON_New_Item())) return 0; 	/* memory fail */
-		child->next=new_item;new_item->prev=child;child=new_item;
-		value=skip(parse_value(child,skip(value+1)));
-		if (!value) return 0;	/* memory fail */
-	}
-
-	if (*value==']') return value+1;	/* end of array */
-	ep=value;return 0;	/* malformed. */
-}
-
-/* Render an array to text */
-static char *print_array(cJSON *item,int depth,int fmt)
-{
-	char **entries;
-	char *out=0,*ptr,*ret;int len=5;
-	cJSON *child=item->child;
-	int numentries=0,i=0,fail=0;
-	
-	/* How many entries in the array? */
-	while (child) numentries++,child=child->next;
-	/* Explicitly handle numentries==0 */
-	if (!numentries)
-	{
-		out=(char*)cJSON_malloc(3);
-		if (out) strcpy(out,"[]");
-		return out;
-	}
-	/* Allocate an array to hold the values for each */
-	entries=(char**)cJSON_malloc(numentries*sizeof(char*));
-	if (!entries) return 0;
-	memset(entries,0,numentries*sizeof(char*));
-	/* Retrieve all the results: */
-	child=item->child;
-	while (child && !fail)
-	{
-		ret=print_value(child,depth+1,fmt);
-		entries[i++]=ret;
-		if (ret) len+=strlen(ret)+2+(fmt?1:0); else fail=1;
-		child=child->next;
-	}
-	
-	/* If we didn't fail, try to malloc the output string */
-	if (!fail) out=(char*)cJSON_malloc(len);
-	/* If that fails, we fail. */
-	if (!out) fail=1;
-
-	/* Handle failure. */
-	if (fail)
-	{
-		for (i=0;i<numentries;i++) if (entries[i]) cJSON_free(entries[i]);
-		cJSON_free(entries);
-		return 0;
-	}
-	
-	/* Compose the output array. */
-	*out='[';
-	ptr=out+1;*ptr=0;
-	for (i=0;i<numentries;i++)
-	{
-		strcpy(ptr,entries[i]);ptr+=strlen(entries[i]);
-		if (i!=numentries-1) {*ptr++=',';if(fmt)*ptr++=' ';*ptr=0;}
-		cJSON_free(entries[i]);
-	}
-	cJSON_free(entries);
-	*ptr++=']';*ptr++=0;
-	return out;	
-}
-
-/* Build an object from the text. */
-static const char *parse_object(cJSON *item,const char *value)
-{
-	cJSON *child;
-	if (*value!='{')	{ep=value;return 0;}	/* not an object! */
-	
-	item->type=cJSON_Object;
-	value=skip(value+1);
-	if (*value=='}') return value+1;	/* empty array. */
-	
-	item->child=child=cJSON_New_Item();
-	if (!item->child) return 0;
-	value=skip(parse_string(child,skip(value)));
-	if (!value) return 0;
-	child->string=child->valuestring;child->valuestring=0;
-	if (*value!=':') {ep=value;return 0;}	/* fail! */
-	value=skip(parse_value(child,skip(value+1)));	/* skip any spacing, get the value. */
-	if (!value) return 0;
-	
-	while (*value==',')
-	{
-		cJSON *new_item;
-		if (!(new_item=cJSON_New_Item()))	return 0; /* memory fail */
-		child->next=new_item;new_item->prev=child;child=new_item;
-		value=skip(parse_string(child,skip(value+1)));
-		if (!value) return 0;
-		child->string=child->valuestring;child->valuestring=0;
-		if (*value!=':') {ep=value;return 0;}	/* fail! */
-		value=skip(parse_value(child,skip(value+1)));	/* skip any spacing, get the value. */
-		if (!value) return 0;
-	}
-	
-	if (*value=='}') return value+1;	/* end of array */
-	ep=value;return 0;	/* malformed. */
-}
-
-/* Render an object to text. */
-static char *print_object(cJSON *item,int depth,int fmt)
-{
-	char **entries=0,**names=0;
-	char *out=0,*ptr,*ret,*str;int len=7,i=0,j;
-	cJSON *child=item->child;
-	int numentries=0,fail=0;
-	/* Count the number of entries. */
-	while (child) numentries++,child=child->next;
-	/* Explicitly handle empty object case */
-	if (!numentries)
-	{
-		out=(char*)cJSON_malloc(fmt?depth+4:3);
-		if (!out)	return 0;
-		ptr=out;*ptr++='{';
-		if (fmt) {*ptr++='\n';for (i=0;i<depth-1;i++) *ptr++='\t';}
-		*ptr++='}';*ptr++=0;
-		return out;
-	}
-	/* Allocate space for the names and the objects */
-	entries=(char**)cJSON_malloc(numentries*sizeof(char*));
-	if (!entries) return 0;
-	names=(char**)cJSON_malloc(numentries*sizeof(char*));
-	if (!names) {cJSON_free(entries);return 0;}
-	memset(entries,0,sizeof(char*)*numentries);
-	memset(names,0,sizeof(char*)*numentries);
-
-	/* Collect all the results into our arrays: */
-	child=item->child;depth++;if (fmt) len+=depth;
-	while (child)
-	{
-		names[i]=str=print_string_ptr(child->string);
-		entries[i++]=ret=print_value(child,depth,fmt);
-		if (str && ret) len+=strlen(ret)+strlen(str)+2+(fmt?2+depth:0); else fail=1;
-		child=child->next;
-	}
-	
-	/* Try to allocate the output string */
-	if (!fail) out=(char*)cJSON_malloc(len);
-	if (!out) fail=1;
-
-	/* Handle failure */
-	if (fail)
-	{
-		for (i=0;i<numentries;i++) {if (names[i]) cJSON_free(names[i]);if (entries[i]) cJSON_free(entries[i]);}
-		cJSON_free(names);cJSON_free(entries);
-		return 0;
-	}
-	
-	/* Compose the output: */
-	*out='{';ptr=out+1;if (fmt)*ptr++='\n';*ptr=0;
-	for (i=0;i<numentries;i++)
-	{
-		if (fmt) for (j=0;j<depth;j++) *ptr++='\t';
-		strcpy(ptr,names[i]);ptr+=strlen(names[i]);
-		*ptr++=':';if (fmt) *ptr++='\t';
-		strcpy(ptr,entries[i]);ptr+=strlen(entries[i]);
-		if (i!=numentries-1) *ptr++=',';
-		if (fmt) *ptr++='\n';*ptr=0;
-		cJSON_free(names[i]);cJSON_free(entries[i]);
-	}
-	
-	cJSON_free(names);cJSON_free(entries);
-	if (fmt) for (i=0;i<depth-1;i++) *ptr++='\t';
-	*ptr++='}';*ptr++=0;
-	return out;	
-}
-
-/* Get Array size/item / object item. */
-int    cJSON_GetArraySize(cJSON *array)							{cJSON *c=array->child;int i=0;while(c)i++,c=c->next;return i;}
-cJSON *cJSON_GetArrayItem(cJSON *array,int item)				{cJSON *c=array->child;  while (c && item>0) item--,c=c->next; return c;}
-cJSON *cJSON_GetObjectItem(cJSON *object,const char *string)	{cJSON *c=object->child; while (c && cJSON_strcasecmp(c->string,string)) c=c->next; return c;}
-
-/* Utility for array list handling. */
-static void suffix_object(cJSON *prev,cJSON *item) {prev->next=item;item->prev=prev;}
-/* Utility for handling references. */
-static cJSON *create_reference(cJSON *item) {cJSON *ref=cJSON_New_Item();if (!ref) return 0;memcpy(ref,item,sizeof(cJSON));ref->string=0;ref->type|=cJSON_IsReference;ref->next=ref->prev=0;return ref;}
-
-/* Add item to array/object. */
-void   cJSON_AddItemToArray(cJSON *array, cJSON *item)						{cJSON *c=array->child;if (!item) return; if (!c) {array->child=item;} else {while (c && c->next) c=c->next; suffix_object(c,item);}}
-void   cJSON_AddItemToObject(cJSON *object,const char *string,cJSON *item)	{if (!item) return; if (item->string) cJSON_free(item->string);item->string=cJSON_strdup(string);cJSON_AddItemToArray(object,item);}
-void	cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item)						{cJSON_AddItemToArray(array,create_reference(item));}
-void	cJSON_AddItemReferenceToObject(cJSON *object,const char *string,cJSON *item)	{cJSON_AddItemToObject(object,string,create_reference(item));}
-
-cJSON *cJSON_DetachItemFromArray(cJSON *array,int which)			{cJSON *c=array->child;while (c && which>0) c=c->next,which--;if (!c) return 0;
-	if (c->prev) c->prev->next=c->next;if (c->next) c->next->prev=c->prev;if (c==array->child) array->child=c->next;c->prev=c->next=0;return c;}
-void   cJSON_DeleteItemFromArray(cJSON *array,int which)			{cJSON_Delete(cJSON_DetachItemFromArray(array,which));}
-cJSON *cJSON_DetachItemFromObject(cJSON *object,const char *string) {int i=0;cJSON *c=object->child;while (c && cJSON_strcasecmp(c->string,string)) i++,c=c->next;if (c) return cJSON_DetachItemFromArray(object,i);return 0;}
-void   cJSON_DeleteItemFromObject(cJSON *object,const char *string) {cJSON_Delete(cJSON_DetachItemFromObject(object,string));}
-
-/* Replace array/object items with new ones. */
-void   cJSON_ReplaceItemInArray(cJSON *array,int which,cJSON *newitem)		{cJSON *c=array->child;while (c && which>0) c=c->next,which--;if (!c) return;
-	newitem->next=c->next;newitem->prev=c->prev;if (newitem->next) newitem->next->prev=newitem;
-	if (c==array->child) array->child=newitem; else newitem->prev->next=newitem;c->next=c->prev=0;cJSON_Delete(c);}
-void   cJSON_ReplaceItemInObject(cJSON *object,const char *string,cJSON *newitem){int i=0;cJSON *c=object->child;while(c && cJSON_strcasecmp(c->string,string))i++,c=c->next;if(c){newitem->string=cJSON_strdup(string);cJSON_ReplaceItemInArray(object,i,newitem);}}
-
-/* Create basic types: */
-cJSON *cJSON_CreateNull(void)					{cJSON *item=cJSON_New_Item();if(item)item->type=cJSON_NULL;return item;}
-cJSON *cJSON_CreateTrue(void)					{cJSON *item=cJSON_New_Item();if(item)item->type=cJSON_True;return item;}
-cJSON *cJSON_CreateFalse(void)					{cJSON *item=cJSON_New_Item();if(item)item->type=cJSON_False;return item;}
-cJSON *cJSON_CreateBool(int b)					{cJSON *item=cJSON_New_Item();if(item)item->type=b?cJSON_True:cJSON_False;return item;}
-cJSON *cJSON_CreateNumber(double num)			{cJSON *item=cJSON_New_Item();if(item){item->type=cJSON_Number;item->valuedouble=num;item->valueint=(int)num;}return item;}
-cJSON *cJSON_CreateString(const char *string)	{cJSON *item=cJSON_New_Item();if(item){item->type=cJSON_String;item->valuestring=cJSON_strdup(string);}return item;}
-cJSON *cJSON_CreateArray(void)					{cJSON *item=cJSON_New_Item();if(item)item->type=cJSON_Array;return item;}
-cJSON *cJSON_CreateObject(void)					{cJSON *item=cJSON_New_Item();if(item)item->type=cJSON_Object;return item;}
-
-/* Create Arrays: */
-cJSON *cJSON_CreateIntArray(const int *numbers,int count)		{int i;cJSON *n=0,*p=0,*a=cJSON_CreateArray();for(i=0;a && i<count;i++){n=cJSON_CreateNumber(numbers[i]);if(!i)a->child=n;else suffix_object(p,n);p=n;}return a;}
-cJSON *cJSON_CreateFloatArray(const float *numbers,int count)	{int i;cJSON *n=0,*p=0,*a=cJSON_CreateArray();for(i=0;a && i<count;i++){n=cJSON_CreateNumber(numbers[i]);if(!i)a->child=n;else suffix_object(p,n);p=n;}return a;}
-cJSON *cJSON_CreateDoubleArray(const double *numbers,int count)	{int i;cJSON *n=0,*p=0,*a=cJSON_CreateArray();for(i=0;a && i<count;i++){n=cJSON_CreateNumber(numbers[i]);if(!i)a->child=n;else suffix_object(p,n);p=n;}return a;}
-cJSON *cJSON_CreateStringArray(const char **strings,int count)	{int i;cJSON *n=0,*p=0,*a=cJSON_CreateArray();for(i=0;a && i<count;i++){n=cJSON_CreateString(strings[i]);if(!i)a->child=n;else suffix_object(p,n);p=n;}return a;}
-
-/* Duplication */
-cJSON *cJSON_Duplicate(cJSON *item,int recurse)
-{
-	cJSON *newitem,*cptr,*nptr=0,*newchild;
-	/* Bail on bad ptr */
-	if (!item) return 0;
-	/* Create new item */
-	newitem=cJSON_New_Item();
-	if (!newitem) return 0;
-	/* Copy over all vars */
-	newitem->type=item->type&(~cJSON_IsReference),newitem->valueint=item->valueint,newitem->valuedouble=item->valuedouble;
-	if (item->valuestring)	{newitem->valuestring=cJSON_strdup(item->valuestring);	if (!newitem->valuestring)	{cJSON_Delete(newitem);return 0;}}
-	if (item->string)		{newitem->string=cJSON_strdup(item->string);			if (!newitem->string)		{cJSON_Delete(newitem);return 0;}}
-	/* If non-recursive, then we're done! */
-	if (!recurse) return newitem;
-	/* Walk the ->next chain for the child. */
-	cptr=item->child;
-	while (cptr)
-	{
-		newchild=cJSON_Duplicate(cptr,1);		/* Duplicate (with recurse) each item in the ->next chain */
-		if (!newchild) {cJSON_Delete(newitem);return 0;}
-		if (nptr)	{nptr->next=newchild,newchild->prev=nptr;nptr=newchild;}	/* If newitem->child already set, then crosswire ->prev and ->next and move on */
-		else		{newitem->child=newchild;nptr=newchild;}					/* Set newitem->child and move to it */
-		cptr=cptr->next;
-	}
-	return newitem;
-}
-
-void cJSON_Minify(char *json)
-{
-	char *into=json;
-	while (*json)
-	{
-		if (*json==' ') json++;
-		else if (*json=='\t') json++;	/* Whitespace characters. */
-		else if (*json=='\r') json++;
-		else if (*json=='\n') json++;
-		else if (*json=='/' && json[1]=='/')  while (*json && *json!='\n') json++;	/* double-slash comments, to end of line. */
-		else if (*json=='/' && json[1]=='*') {while (*json && !(*json=='*' && json[1]=='/')) json++;json+=2;}	/* multiline comments. */
-		else if (*json=='\"'){*into++=*json++;while (*json && *json!='\"'){if (*json=='\\') *into++=*json++;*into++=*json++;}*into++=*json++;} /* string literals, which are \" sensitive. */
-		else *into++=*json++;			/* All other characters. */
-	}
-	*into=0;	/* and null-terminate. */
-}

third_party/cJSON/cJSON.h

@@ -1,143 +0,0 @@
-/*
-  Copyright (c) 2009 Dave Gamble
-
-  Permission is hereby granted, free of charge, to any person obtaining a copy
-  of this software and associated documentation files (the "Software"), to deal
-  in the Software without restriction, including without limitation the rights
-  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-  copies of the Software, and to permit persons to whom the Software is
-  furnished to do so, subject to the following conditions:
-
-  The above copyright notice and this permission notice shall be included in
-  all copies or substantial portions of the Software.
-
-  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-  THE SOFTWARE.
-*/
-
-#ifndef cJSON__h
-#define cJSON__h
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-/* cJSON Types: */
-#define cJSON_False 0
-#define cJSON_True 1
-#define cJSON_NULL 2
-#define cJSON_Number 3
-#define cJSON_String 4
-#define cJSON_Array 5
-#define cJSON_Object 6
-
-#define cJSON_IsReference 256
-
-/* The cJSON structure: */
-typedef struct cJSON {
-	struct cJSON *next,*prev;	/* next/prev allow you to walk array/object chains. Alternatively, use GetArraySize/GetArrayItem/GetObjectItem */
-	struct cJSON *child;		/* An array or object item will have a child pointer pointing to a chain of the items in the array/object. */
-
-	int type;					/* The type of the item, as above. */
-
-	char *valuestring;			/* The item's string, if type==cJSON_String */
-	int valueint;				/* The item's number, if type==cJSON_Number */
-	double valuedouble;			/* The item's number, if type==cJSON_Number */
-
-	char *string;				/* The item's name string, if this item is the child of, or is in the list of subitems of an object. */
-} cJSON;
-
-typedef struct cJSON_Hooks {
-      void *(*malloc_fn)(size_t sz);
-      void (*free_fn)(void *ptr);
-} cJSON_Hooks;
-
-/* Supply malloc, realloc and free functions to cJSON */
-extern void cJSON_InitHooks(cJSON_Hooks* hooks);
-
-
-/* Supply a block of JSON, and this returns a cJSON object you can interrogate. Call cJSON_Delete when finished. */
-extern cJSON *cJSON_Parse(const char *value);
-/* Render a cJSON entity to text for transfer/storage. Free the char* when finished. */
-extern char  *cJSON_Print(cJSON *item);
-/* Render a cJSON entity to text for transfer/storage without any formatting. Free the char* when finished. */
-extern char  *cJSON_PrintUnformatted(cJSON *item);
-/* Delete a cJSON entity and all subentities. */
-extern void   cJSON_Delete(cJSON *c);
-
-/* Returns the number of items in an array (or object). */
-extern int	  cJSON_GetArraySize(cJSON *array);
-/* Retrieve item number "item" from array "array". Returns NULL if unsuccessful. */
-extern cJSON *cJSON_GetArrayItem(cJSON *array,int item);
-/* Get item "string" from object. Case insensitive. */
-extern cJSON *cJSON_GetObjectItem(cJSON *object,const char *string);
-
-/* For analysing failed parses. This returns a pointer to the parse error. You'll probably need to look a few chars back to make sense of it. Defined when cJSON_Parse() returns 0. 0 when cJSON_Parse() succeeds. */
-extern const char *cJSON_GetErrorPtr(void);
-
-/* These calls create a cJSON item of the appropriate type. */
-extern cJSON *cJSON_CreateNull(void);
-extern cJSON *cJSON_CreateTrue(void);
-extern cJSON *cJSON_CreateFalse(void);
-extern cJSON *cJSON_CreateBool(int b);
-extern cJSON *cJSON_CreateNumber(double num);
-extern cJSON *cJSON_CreateString(const char *string);
-extern cJSON *cJSON_CreateArray(void);
-extern cJSON *cJSON_CreateObject(void);
-
-/* These utilities create an Array of count items. */
-extern cJSON *cJSON_CreateIntArray(const int *numbers,int count);
-extern cJSON *cJSON_CreateFloatArray(const float *numbers,int count);
-extern cJSON *cJSON_CreateDoubleArray(const double *numbers,int count);
-extern cJSON *cJSON_CreateStringArray(const char **strings,int count);
-
-/* Append item to the specified array/object. */
-extern void cJSON_AddItemToArray(cJSON *array, cJSON *item);
-extern void	cJSON_AddItemToObject(cJSON *object,const char *string,cJSON *item);
-/* Append reference to item to the specified array/object. Use this when you want to add an existing cJSON to a new cJSON, but don't want to corrupt your existing cJSON. */
-extern void cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item);
-extern void	cJSON_AddItemReferenceToObject(cJSON *object,const char *string,cJSON *item);
-
-/* Remove/Detatch items from Arrays/Objects. */
-extern cJSON *cJSON_DetachItemFromArray(cJSON *array,int which);
-extern void   cJSON_DeleteItemFromArray(cJSON *array,int which);
-extern cJSON *cJSON_DetachItemFromObject(cJSON *object,const char *string);
-extern void   cJSON_DeleteItemFromObject(cJSON *object,const char *string);
-
-/* Update array items. */
-extern void cJSON_ReplaceItemInArray(cJSON *array,int which,cJSON *newitem);
-extern void cJSON_ReplaceItemInObject(cJSON *object,const char *string,cJSON *newitem);
-
-/* Duplicate a cJSON item */
-extern cJSON *cJSON_Duplicate(cJSON *item,int recurse);
-/* Duplicate will create a new, identical cJSON item to the one you pass, in new memory that will
-need to be released. With recurse!=0, it will duplicate any children connected to the item.
-The item->next and ->prev pointers are always zero on return from Duplicate. */
-
-/* ParseWithOpts allows you to require (and check) that the JSON is null terminated, and to retrieve the pointer to the final byte parsed. */
-extern cJSON *cJSON_ParseWithOpts(const char *value,const char **return_parse_end,int require_null_terminated);
-
-extern void cJSON_Minify(char *json);
-
-/* Macros for creating things quickly. */
-#define cJSON_AddNullToObject(object,name)		cJSON_AddItemToObject(object, name, cJSON_CreateNull())
-#define cJSON_AddTrueToObject(object,name)		cJSON_AddItemToObject(object, name, cJSON_CreateTrue())
-#define cJSON_AddFalseToObject(object,name)		cJSON_AddItemToObject(object, name, cJSON_CreateFalse())
-#define cJSON_AddBoolToObject(object,name,b)	cJSON_AddItemToObject(object, name, cJSON_CreateBool(b))
-#define cJSON_AddNumberToObject(object,name,n)	cJSON_AddItemToObject(object, name, cJSON_CreateNumber(n))
-#define cJSON_AddStringToObject(object,name,s)	cJSON_AddItemToObject(object, name, cJSON_CreateString(s))
-
-/* When assigning an integer value, it needs to be propagated to valuedouble too. */
-#define cJSON_SetIntValue(object,val)			((object)?(object)->valueint=(object)->valuedouble=(val):(val))
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif

third_party/cJSON/test.c

@@ -1,156 +0,0 @@
-/*
-  Copyright (c) 2009 Dave Gamble
- 
-  Permission is hereby granted, free of charge, to any person obtaining a copy
-  of this software and associated documentation files (the "Software"), to deal
-  in the Software without restriction, including without limitation the rights
-  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-  copies of the Software, and to permit persons to whom the Software is
-  furnished to do so, subject to the following conditions:
- 
-  The above copyright notice and this permission notice shall be included in
-  all copies or substantial portions of the Software.
- 
-  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-  THE SOFTWARE.
-*/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include "cJSON.h"
-
-/* Parse text to JSON, then render back to text, and print! */
-void doit(char *text)
-{
-	char *out;cJSON *json;
-	
-	json=cJSON_Parse(text);
-	if (!json) {printf("Error before: [%s]\n",cJSON_GetErrorPtr());}
-	else
-	{
-		out=cJSON_Print(json);
-		cJSON_Delete(json);
-		printf("%s\n",out);
-		free(out);
-	}
-}
-
-/* Read a file, parse, render back, etc. */
-void dofile(char *filename)
-{
-	FILE *f=fopen(filename,"rb");fseek(f,0,SEEK_END);long len=ftell(f);fseek(f,0,SEEK_SET);
-	char *data=(char*)malloc(len+1);fread(data,1,len,f);fclose(f);
-	doit(data);
-	free(data);
-}
-
-/* Used by some code below as an example datatype. */
-struct record {const char *precision;double lat,lon;const char *address,*city,*state,*zip,*country; };
-
-/* Create a bunch of objects as demonstration. */
-void create_objects()
-{
-	cJSON *root,*fmt,*img,*thm,*fld;char *out;int i;	/* declare a few. */
-
-	/* Here we construct some JSON standards, from the JSON site. */
-	
-	/* Our "Video" datatype: */
-	root=cJSON_CreateObject();	
-	cJSON_AddItemToObject(root, "name", cJSON_CreateString("Jack (\"Bee\") Nimble"));
-	cJSON_AddItemToObject(root, "format", fmt=cJSON_CreateObject());
-	cJSON_AddStringToObject(fmt,"type",		"rect");
-	cJSON_AddNumberToObject(fmt,"width",		1920);
-	cJSON_AddNumberToObject(fmt,"height",		1080);
-	cJSON_AddFalseToObject (fmt,"interlace");
-	cJSON_AddNumberToObject(fmt,"frame rate",	24);
-	
-	out=cJSON_Print(root);	cJSON_Delete(root);	printf("%s\n",out);	free(out);	/* Print to text, Delete the cJSON, print it, release the string. */
-
-	/* Our "days of the week" array: */
-	const char *strings[7]={"Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"};
-	root=cJSON_CreateStringArray(strings,7);
-
-	out=cJSON_Print(root);	cJSON_Delete(root);	printf("%s\n",out);	free(out);
-
-	/* Our matrix: */
-	int numbers[3][3]={{0,-1,0},{1,0,0},{0,0,1}};
-	root=cJSON_CreateArray();
-	for (i=0;i<3;i++) cJSON_AddItemToArray(root,cJSON_CreateIntArray(numbers[i],3));
-
-/*	cJSON_ReplaceItemInArray(root,1,cJSON_CreateString("Replacement")); */
-	
-	out=cJSON_Print(root);	cJSON_Delete(root);	printf("%s\n",out);	free(out);
-
-
-	/* Our "gallery" item: */
-	int ids[4]={116,943,234,38793};
-	root=cJSON_CreateObject();
-	cJSON_AddItemToObject(root, "Image", img=cJSON_CreateObject());
-	cJSON_AddNumberToObject(img,"Width",800);
-	cJSON_AddNumberToObject(img,"Height",600);
-	cJSON_AddStringToObject(img,"Title","View from 15th Floor");
-	cJSON_AddItemToObject(img, "Thumbnail", thm=cJSON_CreateObject());
-	cJSON_AddStringToObject(thm, "Url", "http:/*www.example.com/image/481989943");
-	cJSON_AddNumberToObject(thm,"Height",125);
-	cJSON_AddStringToObject(thm,"Width","100");
-	cJSON_AddItemToObject(img,"IDs", cJSON_CreateIntArray(ids,4));
-
-	out=cJSON_Print(root);	cJSON_Delete(root);	printf("%s\n",out);	free(out);
-
-	/* Our array of "records": */
-	struct record fields[2]={
-		{"zip",37.7668,-1.223959e+2,"","SAN FRANCISCO","CA","94107","US"},
-		{"zip",37.371991,-1.22026e+2,"","SUNNYVALE","CA","94085","US"}};
-
-	root=cJSON_CreateArray();
-	for (i=0;i<2;i++)
-	{
-		cJSON_AddItemToArray(root,fld=cJSON_CreateObject());
-		cJSON_AddStringToObject(fld, "precision", fields[i].precision);
-		cJSON_AddNumberToObject(fld, "Latitude", fields[i].lat);
-		cJSON_AddNumberToObject(fld, "Longitude", fields[i].lon);
-		cJSON_AddStringToObject(fld, "Address", fields[i].address);
-		cJSON_AddStringToObject(fld, "City", fields[i].city);
-		cJSON_AddStringToObject(fld, "State", fields[i].state);
-		cJSON_AddStringToObject(fld, "Zip", fields[i].zip);
-		cJSON_AddStringToObject(fld, "Country", fields[i].country);
-	}
-	
-/*	cJSON_ReplaceItemInObject(cJSON_GetArrayItem(root,1),"City",cJSON_CreateIntArray(ids,4)); */
-	
-	out=cJSON_Print(root);	cJSON_Delete(root);	printf("%s\n",out);	free(out);
-
-}
-
-int main (int argc, const char * argv[]) {
-	/* a bunch of json: */
-	char text1[]="{\n\"name\": \"Jack (\\\"Bee\\\") Nimble\", \n\"format\": {\"type\":       \"rect\", \n\"width\":      1920, \n\"height\":     1080, \n\"interlace\":  false,\"frame rate\": 24\n}\n}";	
-	char text2[]="[\"Sunday\", \"Monday\", \"Tuesday\", \"Wednesday\", \"Thursday\", \"Friday\", \"Saturday\"]";
-	char text3[]="[\n    [0, -1, 0],\n    [1, 0, 0],\n    [0, 0, 1]\n	]\n";
-	char text4[]="{\n		\"Image\": {\n			\"Width\":  800,\n			\"Height\": 600,\n			\"Title\":  \"View from 15th Floor\",\n			\"Thumbnail\": {\n				\"Url\":    \"http:/*www.example.com/image/481989943\",\n				\"Height\": 125,\n				\"Width\":  \"100\"\n			},\n			\"IDs\": [116, 943, 234, 38793]\n		}\n	}";
-	char text5[]="[\n	 {\n	 \"precision\": \"zip\",\n	 \"Latitude\":  37.7668,\n	 \"Longitude\": -122.3959,\n	 \"Address\":   \"\",\n	 \"City\":      \"SAN FRANCISCO\",\n	 \"State\":     \"CA\",\n	 \"Zip\":       \"94107\",\n	 \"Country\":   \"US\"\n	 },\n	 {\n	 \"precision\": \"zip\",\n	 \"Latitude\":  37.371991,\n	 \"Longitude\": -122.026020,\n	 \"Address\":   \"\",\n	 \"City\":      \"SUNNYVALE\",\n	 \"State\":     \"CA\",\n	 \"Zip\":       \"94085\",\n	 \"Country\":   \"US\"\n	 }\n	 ]";
-
-	/* Process each json textblock by parsing, then rebuilding: */
-	doit(text1);
-	doit(text2);	
-	doit(text3);
-	doit(text4);
-	doit(text5);
-
-	/* Parse standard testfiles: */
-/*	dofile("../../tests/test1"); */
-/*	dofile("../../tests/test2"); */
-/*	dofile("../../tests/test3"); */
-/*	dofile("../../tests/test4"); */
-/*	dofile("../../tests/test5"); */
-
-	/* Now some samplecode for building objects concisely: */
-	create_objects();
-	
-	return 0;
-}

third_party/cJSON/tests/test1

@@ -1,22 +0,0 @@
-{
-    "glossary": {
-        "title": "example glossary",
-		"GlossDiv": {
-            "title": "S",
-			"GlossList": {
-                "GlossEntry": {
-                    "ID": "SGML",
-					"SortAs": "SGML",
-					"GlossTerm": "Standard Generalized Markup Language",
-					"Acronym": "SGML",
-					"Abbrev": "ISO 8879:1986",
-					"GlossDef": {
-                        "para": "A meta-markup language, used to create markup languages such as DocBook.",
-						"GlossSeeAlso": ["GML", "XML"]
-                    },
-					"GlossSee": "markup"
-                }
-            }
-        }
-    }
-}

third_party/cJSON/tests/test2

@@ -1,11 +0,0 @@
-{"menu": {
-  "id": "file",
-  "value": "File",
-  "popup": {
-    "menuitem": [
-      {"value": "New", "onclick": "CreateNewDoc()"},
-      {"value": "Open", "onclick": "OpenDoc()"},
-      {"value": "Close", "onclick": "CloseDoc()"}
-    ]
-  }
-}}

third_party/cJSON/tests/test3

@@ -1,26 +0,0 @@
-{"widget": {
-    "debug": "on",
-    "window": {
-        "title": "Sample Konfabulator Widget",
-        "name": "main_window",
-        "width": 500,
-        "height": 500
-    },
-    "image": { 
-        "src": "Images/Sun.png",
-        "name": "sun1",
-        "hOffset": 250,
-        "vOffset": 250,
-        "alignment": "center"
-    },
-    "text": {
-        "data": "Click Here",
-        "size": 36,
-        "style": "bold",
-        "name": "text1",
-        "hOffset": 250,
-        "vOffset": 100,
-        "alignment": "center",
-        "onMouseUp": "sun1.opacity = (sun1.opacity / 100) * 90;"
-    }
-}}    

third_party/cJSON/tests/test5

@@ -1,27 +0,0 @@
-{"menu": {
-    "header": "SVG Viewer",
-    "items": [
-        {"id": "Open"},
-        {"id": "OpenNew", "label": "Open New"},
-        null,
-        {"id": "ZoomIn", "label": "Zoom In"},
-        {"id": "ZoomOut", "label": "Zoom Out"},
-        {"id": "OriginalView", "label": "Original View"},
-        null,
-        {"id": "Quality"},
-        {"id": "Pause"},
-        {"id": "Mute"},
-        null,
-        {"id": "Find", "label": "Find..."},
-        {"id": "FindAgain", "label": "Find Again"},
-        {"id": "Copy"},
-        {"id": "CopyAgain", "label": "Copy Again"},
-        {"id": "CopySVG", "label": "Copy SVG"},
-        {"id": "ViewSVG", "label": "View SVG"},
-        {"id": "ViewSource", "label": "View Source"},
-        {"id": "SaveAs", "label": "Save As"},
-        null,
-        {"id": "Help"},
-        {"id": "About", "label": "About Adobe CVG Viewer..."}
-    ]
-}}

tools/dockerfile/grpc_node/Dockerfile

@@ -0,0 +1,14 @@
+# Dockerfile for gRPC Node
+FROM grpc/node_base
+
+# Update the C libary
+RUN cd /var/local/git/grpc \
+  && git pull --recurse-submodules \
+  && git submodule update --init --recursive
+
+# Install the C core.
+RUN make install_c -C /var/local/git/grpc
+
+RUN cd /var/local/git/grpc/src/node && npm install && node-gyp rebuild
+
+CMD ["/usr/bin/nodejs", "/var/local/git/grpc/src/node/interop/interop_server.js", "--use_tls=true", "--port 8040"]

tools/dockerfile/grpc_node_base/Dockerfile

@@ -0,0 +1,22 @@
+# Base Dockerfile for gRPC Node.
+#
+# Includes Node installation dependencies
+FROM grpc/base
+
+RUN curl -sL https://deb.nodesource.com/setup | bash -
+
+RUN apt-get update && apt-get install -y nodejs
+
+RUN npm install -g node-gyp
+
+# Get the source from GitHub, this gets the protobuf library as well
+RUN git clone git@github.com:google/grpc.git /var/local/git/grpc
+RUN cd /var/local/git/grpc && \
+  git pull --recurse-submodules && \
+  git submodule update --init --recursive
+
+# Build the C core
+RUN make static_c shared_c -j12 -C /var/local/git/grpc
+
+# Define the default command.
+CMD ["bash"]

tools/gce_setup/grpc_docker.sh

@@ -350,7 +350,7 @@ grpc_interop_test_args() {
 
   [[ -n $1 ]] && {  # client_type
     case $1 in
-      cxx|go|java|nodejs|php|python|ruby)
+      cxx|go|java|node|php|python|ruby)
         grpc_gen_test_cmd="grpc_interop_gen_$1_cmd"
         declare -F $grpc_gen_test_cmd >> /dev/null || {
           echo "-f: test_func for $1 => $grpc_gen_test_cmd is not defined" 1>&2
@@ -381,7 +381,7 @@ grpc_interop_test_args() {
       cxx)    grpc_port=8010 ;;
       go)     grpc_port=8020 ;;
       java)   grpc_port=8030 ;;
-      nodejs) grpc_port=8040 ;;
+      node)   grpc_port=8040 ;;
       python) grpc_port=8050 ;;
       ruby)   grpc_port=8060 ;;
       *) echo "bad server_type: $1" 1>&2; return 1 ;;
@@ -421,7 +421,7 @@ grpc_cloud_prod_test_args() {
 
   [[ -n $1 ]] && {  # client_type
     case $1 in
-      cxx|go|java|nodejs|php|python|ruby)
+      cxx|go|java|node|php|python|ruby)
         grpc_gen_test_cmd="grpc_cloud_prod_gen_$1_cmd"
         declare -F $grpc_gen_test_cmd >> /dev/null || {
           echo "-f: test_func for $1 => $grpc_gen_test_cmd is not defined" 1>&2
@@ -555,7 +555,7 @@ grpc_launch_server_args() {
       cxx)    grpc_port=8010 ;;
       go)     grpc_port=8020 ;;
       java)   grpc_port=8030 ;;
-      nodejs) grpc_port=8040 ;;
+      node)   grpc_port=8040 ;;
       python) grpc_port=8050 ;;
       ruby)   grpc_port=8060 ;;
       *) echo "bad server_type: $1" 1>&2; return 1 ;;
@@ -627,7 +627,7 @@ grpc_launch_server() {
 #   cxx:    8010
 #   go:     8020
 #   java:   8030
-#   nodejs: 8040
+#   node:   8040
 #   python: 8050
 #   ruby:   8060
 #
@@ -827,6 +827,13 @@ grpc_interop_gen_cxx_cmd() {
     echo $the_cmd
 }
 
+grpc_interop_gen_node_cmd() {
+  local cmd_prefix="sudo docker run grpc/node";
+  local test_script="/usr/bin/nodejs /var/local/git/grpc/src/node/interop/interop_client.js --use_tls=true";
+  local the_cmd="$cmd_prefix $test_script $@";
+  echo $the_cmd
+}
+
 # constructs the full dockerized cpp interop test cmd.
 #
 #
@@ -841,4 +848,4 @@ grpc_cloud_prod_gen_cxx_cmd() {
     echo $the_cmd
 }
 
-# TODO(grpc-team): add grpc_interop_gen_xxx_cmd for python|cxx|nodejs
+# TODO(grpc-team): add grpc_interop_gen_python_cmd

tools/gce_setup/shared_startup_funcs.sh

@@ -367,7 +367,7 @@ grpc_docker_launch_registry() {
 grpc_docker_pull_known() {
   local addr=$1
   [[ -n $addr ]] || addr="0.0.0.0:5000"
-  local known="base cxx php_base php ruby_base ruby java_base java go"
+  local known="base cxx php_base php ruby_base ruby java_base java go node_base node"
   echo "... pulling docker images for '$known'"
   for i in $known
   do

tools/run_tests/tests.json

@@ -249,6 +249,14 @@
     "language": "c", 
     "name": "transport_metadata_test"
   }, 
+  {
+    "language": "c", 
+    "name": "json_test"
+  }, 
+  {
+    "language": "c", 
+    "name": "json_rewrite_test"
+  }, 
   {
     "language": "c++", 
     "name": "channel_arguments_test"

vsprojects/vs2013/grpc.vcxproj

@@ -136,6 +136,10 @@
     <ClInclude Include="..\..\src\core\iomgr\time_averaged_stats.h" />
     <ClInclude Include="..\..\src\core\iomgr\wakeup_fd_posix.h" />
     <ClInclude Include="..\..\src\core\iomgr\wakeup_fd_pipe.h" />
+    <ClInclude Include="..\..\src\core\json\json.h" />
+    <ClInclude Include="..\..\src\core\json\json_common.h" />
+    <ClInclude Include="..\..\src\core\json\json_reader.h" />
+    <ClInclude Include="..\..\src\core\json\json_writer.h" />
     <ClInclude Include="..\..\src\core\statistics\census_interface.h" />
     <ClInclude Include="..\..\src\core\statistics\census_log.h" />
     <ClInclude Include="..\..\src\core\statistics\census_rpc_stats.h" />
@@ -286,6 +290,14 @@
     </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\wakeup_fd_posix.c">
     </ClCompile>
+    <ClCompile Include="..\..\src\core\json\json.c">
+    </ClCompile>
+    <ClCompile Include="..\..\src\core\json\json_reader.c">
+    </ClCompile>
+    <ClCompile Include="..\..\src\core\json\json_string.c">
+    </ClCompile>
+    <ClCompile Include="..\..\src\core\json\json_writer.c">
+    </ClCompile>
     <ClCompile Include="..\..\src\core\statistics\census_init.c">
     </ClCompile>
     <ClCompile Include="..\..\src\core\statistics\census_log.c">
@@ -368,8 +380,6 @@
     </ClCompile>
     <ClCompile Include="..\..\src\core\transport\transport.c">
     </ClCompile>
-    <ClCompile Include="..\..\third_party\cJSON\cJSON.c">
-    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="gpr.vcxproj">

vsprojects/vs2013/grpc.vcxproj.filters

@@ -169,6 +169,18 @@
     <ClCompile Include="..\..\src\core\iomgr\wakeup_fd_posix.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\src\core\json\json.c">
+      <Filter>src\core\json</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\core\json\json_reader.c">
+      <Filter>src\core\json</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\core\json\json_string.c">
+      <Filter>src\core\json</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\core\json\json_writer.c">
+      <Filter>src\core\json</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\src\core\statistics\census_init.c">
       <Filter>src\core\statistics</Filter>
     </ClCompile>
@@ -292,9 +304,6 @@
     <ClCompile Include="..\..\src\core\transport\transport.c">
       <Filter>src\core\transport</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\third_party\cJSON\cJSON.c">
-      <Filter>third_party\cJSON</Filter>
-    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\include\grpc\grpc_security.h">
@@ -482,6 +491,18 @@
     <ClInclude Include="..\..\src\core\iomgr\wakeup_fd_pipe.h">
       <Filter>src\core\iomgr</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\src\core\json\json.h">
+      <Filter>src\core\json</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\src\core\json\json_common.h">
+      <Filter>src\core\json</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\src\core\json\json_reader.h">
+      <Filter>src\core\json</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\src\core\json\json_writer.h">
+      <Filter>src\core\json</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\src\core\statistics\census_interface.h">
       <Filter>src\core\statistics</Filter>
     </ClInclude>
@@ -617,6 +638,9 @@
     <Filter Include="src\core\iomgr">
       <UniqueIdentifier>{1baf3894-af37-e647-bdbc-95dc17ed0073}</UniqueIdentifier>
     </Filter>
+    <Filter Include="src\core\json">
+      <UniqueIdentifier>{e665cc0e-b994-d7c5-cc18-2007392019f0}</UniqueIdentifier>
+    </Filter>
     <Filter Include="src\core\security">
       <UniqueIdentifier>{1d850ac6-e639-4eab-5338-4ba40272fcc9}</UniqueIdentifier>
     </Filter>
@@ -635,12 +659,6 @@
     <Filter Include="src\core\tsi">
       <UniqueIdentifier>{0b0f9ab1-efa4-7f03-e446-6fb9b5227e84}</UniqueIdentifier>
     </Filter>
-    <Filter Include="third_party">
-      <UniqueIdentifier>{aaab30a4-2a15-732e-c141-3fbc0f0f5a7a}</UniqueIdentifier>
-    </Filter>
-    <Filter Include="third_party\cJSON">
-      <UniqueIdentifier>{332d0840-2c7a-bb09-8e58-585a6fb3959f}</UniqueIdentifier>
-    </Filter>
   </ItemGroup>
 </Project>
 

vsprojects/vs2013/grpc_unsecure.vcxproj

@@ -136,6 +136,10 @@
     <ClInclude Include="..\..\src\core\iomgr\time_averaged_stats.h" />
     <ClInclude Include="..\..\src\core\iomgr\wakeup_fd_posix.h" />
     <ClInclude Include="..\..\src\core\iomgr\wakeup_fd_pipe.h" />
+    <ClInclude Include="..\..\src\core\json\json.h" />
+    <ClInclude Include="..\..\src\core\json\json_common.h" />
+    <ClInclude Include="..\..\src\core\json\json_reader.h" />
+    <ClInclude Include="..\..\src\core\json\json_writer.h" />
     <ClInclude Include="..\..\src\core\statistics\census_interface.h" />
     <ClInclude Include="..\..\src\core\statistics\census_log.h" />
     <ClInclude Include="..\..\src\core\statistics\census_rpc_stats.h" />
@@ -286,6 +290,14 @@
     </ClCompile>
     <ClCompile Include="..\..\src\core\iomgr\wakeup_fd_posix.c">
     </ClCompile>
+    <ClCompile Include="..\..\src\core\json\json.c">
+    </ClCompile>
+    <ClCompile Include="..\..\src\core\json\json_reader.c">
+    </ClCompile>
+    <ClCompile Include="..\..\src\core\json\json_string.c">
+    </ClCompile>
+    <ClCompile Include="..\..\src\core\json\json_writer.c">
+    </ClCompile>
     <ClCompile Include="..\..\src\core\statistics\census_init.c">
     </ClCompile>
     <ClCompile Include="..\..\src\core\statistics\census_log.c">
@@ -368,8 +380,6 @@
     </ClCompile>
     <ClCompile Include="..\..\src\core\transport\transport.c">
     </ClCompile>
-    <ClCompile Include="..\..\third_party\cJSON\cJSON.c">
-    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="gpr.vcxproj">

vsprojects/vs2013/grpc_unsecure.vcxproj.filters

@@ -130,6 +130,18 @@
     <ClCompile Include="..\..\src\core\iomgr\wakeup_fd_posix.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\src\core\json\json.c">
+      <Filter>src\core\json</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\core\json\json_reader.c">
+      <Filter>src\core\json</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\core\json\json_string.c">
+      <Filter>src\core\json</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\core\json\json_writer.c">
+      <Filter>src\core\json</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\src\core\statistics\census_init.c">
       <Filter>src\core\statistics</Filter>
     </ClCompile>
@@ -253,9 +265,6 @@
     <ClCompile Include="..\..\src\core\transport\transport.c">
       <Filter>src\core\transport</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\third_party\cJSON\cJSON.c">
-      <Filter>third_party\cJSON</Filter>
-    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\include\grpc\byte_buffer.h">
@@ -407,6 +416,18 @@
     <ClInclude Include="..\..\src\core\iomgr\wakeup_fd_pipe.h">
       <Filter>src\core\iomgr</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\src\core\json\json.h">
+      <Filter>src\core\json</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\src\core\json\json_common.h">
+      <Filter>src\core\json</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\src\core\json\json_reader.h">
+      <Filter>src\core\json</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\src\core\json\json_writer.h">
+      <Filter>src\core\json</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\src\core\statistics\census_interface.h">
       <Filter>src\core\statistics</Filter>
     </ClInclude>
@@ -542,6 +563,9 @@
     <Filter Include="src\core\iomgr">
       <UniqueIdentifier>{a9df8b24-ecea-ff6d-8999-d8fa54cd70bf}</UniqueIdentifier>
     </Filter>
+    <Filter Include="src\core\json">
+      <UniqueIdentifier>{443ffc61-1bea-2477-6e54-1ddf8c139264}</UniqueIdentifier>
+    </Filter>
     <Filter Include="src\core\statistics">
       <UniqueIdentifier>{e084164c-a069-00e3-db35-4e0b1cd6f0b7}</UniqueIdentifier>
     </Filter>
@@ -554,12 +578,6 @@
     <Filter Include="src\core\transport\chttp2">
       <UniqueIdentifier>{5fcd6206-f774-9ae6-4b85-305d6a723843}</UniqueIdentifier>
     </Filter>
-    <Filter Include="third_party">
-      <UniqueIdentifier>{025c051e-8eba-125b-67f9-173f95176eb2}</UniqueIdentifier>
-    </Filter>
-    <Filter Include="third_party\cJSON">
-      <UniqueIdentifier>{7d75397e-988a-baac-897e-2ea7b43d5dd9}</UniqueIdentifier>
-    </Filter>
   </ItemGroup>
 </Project>