mirror of https://github.com/grpc/grpc.git
Merge branch 'master' of https://github.com/grpc/grpc into bad_ssl_certificate_path
Nicolas "Pixel" Noble
9 years ago
commit
80dfb56733
395 changed files with 6929 additions and 4628 deletions
@ -0,0 +1,8 @@ |
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-Ithird_party/googletest/include |
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-Ithird_party/googletest |
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-Iinclude |
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-Igens |
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-I. |
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-Ithird_party/boringssl/include |
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-Ithird_party/zlib |
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-Ithird_party/protobuf/src |
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@ -1,14 +1,28 @@ |
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# Top-level Items by language |
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|
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## Bazel |
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* [grpc.bzl](grpc.bzl) |
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|
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## Node |
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* [binding.gyp](binding.gyp) |
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* [package.json](package.json) |
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|
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## Objective-C |
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* [gRPC.podspec](gRPC.podspec) |
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|
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## PHP |
||||
* [composer.json](composer.json) |
||||
* [config.m4](config.m4) |
||||
* [package.xml](package.xml) |
||||
|
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## Python |
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* [requirements.txt](requirements.txt) |
||||
* [setup.cfg](setup.cfg) |
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* [setup.py](setup.py) |
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* [tox.ini](tox.ini) |
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* [PYTHON-MANIFEST.in](PYTHON-MANIFEST.in) |
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|
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## Ruby |
||||
* [Gemfile](Gemfile) |
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* [grpc.gemspec](grpc.gemspec) |
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* [Rakefile](Rakefile) |
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|
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@ -0,0 +1,70 @@ |
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/*
|
||||
* |
||||
* Copyright 2015-2016, 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 "src/core/census/grpc_plugin.h" |
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|
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#include <limits.h> |
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|
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#include <grpc/census.h> |
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|
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#include "src/core/census/grpc_filter.h" |
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#include "src/core/surface/channel_init.h" |
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#include "src/core/channel/channel_stack_builder.h" |
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|
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static bool maybe_add_census_filter(grpc_channel_stack_builder *builder, |
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void *arg_must_be_null) { |
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const grpc_channel_args *args = |
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grpc_channel_stack_builder_get_channel_arguments(builder); |
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if (grpc_channel_args_is_census_enabled(args)) { |
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return grpc_channel_stack_builder_prepend_filter( |
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builder, &grpc_client_census_filter, NULL, NULL); |
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} |
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return true; |
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} |
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|
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void census_grpc_plugin_init(void) { |
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/* Only initialize census if no one else has and some features are
|
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* available. */ |
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if (census_enabled() == CENSUS_FEATURE_NONE && |
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census_supported() != CENSUS_FEATURE_NONE) { |
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if (census_initialize(census_supported())) { /* enable all features. */ |
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gpr_log(GPR_ERROR, "Could not initialize census."); |
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} |
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} |
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grpc_channel_init_register_stage(GRPC_CLIENT_CHANNEL, INT_MAX, |
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maybe_add_census_filter, NULL); |
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grpc_channel_init_register_stage(GRPC_SERVER_CHANNEL, INT_MAX, |
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maybe_add_census_filter, NULL); |
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} |
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|
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void census_grpc_plugin_destroy(void) { census_shutdown(); } |
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@ -0,0 +1,258 @@ |
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/*
|
||||
* |
||||
* Copyright 2016, Google Inc. |
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* 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. |
||||
* |
||||
*/ |
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|
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#include "src/core/channel/channel_stack_builder.h" |
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|
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#include <string.h> |
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|
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#include <grpc/support/alloc.h> |
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|
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int grpc_trace_channel_stack_builder = 0; |
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|
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typedef struct filter_node { |
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struct filter_node *next; |
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struct filter_node *prev; |
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const grpc_channel_filter *filter; |
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grpc_post_filter_create_init_func init; |
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void *init_arg; |
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} filter_node; |
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|
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struct grpc_channel_stack_builder { |
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// sentinel nodes for filters that have been added
|
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filter_node begin; |
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filter_node end; |
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// various set/get-able parameters
|
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const grpc_channel_args *args; |
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grpc_transport *transport; |
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const char *name; |
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}; |
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|
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struct grpc_channel_stack_builder_iterator { |
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grpc_channel_stack_builder *builder; |
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filter_node *node; |
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}; |
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|
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grpc_channel_stack_builder *grpc_channel_stack_builder_create(void) { |
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grpc_channel_stack_builder *b = gpr_malloc(sizeof(*b)); |
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memset(b, 0, sizeof(*b)); |
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|
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b->begin.filter = NULL; |
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b->end.filter = NULL; |
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b->begin.next = &b->end; |
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b->begin.prev = &b->end; |
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b->end.next = &b->begin; |
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b->end.prev = &b->begin; |
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|
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return b; |
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} |
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|
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static grpc_channel_stack_builder_iterator *create_iterator_at_filter_node( |
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grpc_channel_stack_builder *builder, filter_node *node) { |
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grpc_channel_stack_builder_iterator *it = gpr_malloc(sizeof(*it)); |
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it->builder = builder; |
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it->node = node; |
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return it; |
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} |
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|
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void grpc_channel_stack_builder_iterator_destroy( |
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grpc_channel_stack_builder_iterator *it) { |
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gpr_free(it); |
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} |
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|
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grpc_channel_stack_builder_iterator * |
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grpc_channel_stack_builder_create_iterator_at_first( |
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grpc_channel_stack_builder *builder) { |
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return create_iterator_at_filter_node(builder, &builder->begin); |
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} |
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|
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grpc_channel_stack_builder_iterator * |
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grpc_channel_stack_builder_create_iterator_at_last( |
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grpc_channel_stack_builder *builder) { |
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return create_iterator_at_filter_node(builder, &builder->end); |
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} |
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|
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bool grpc_channel_stack_builder_move_next( |
||||
grpc_channel_stack_builder_iterator *iterator) { |
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if (iterator->node == &iterator->builder->end) return false; |
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iterator->node = iterator->node->next; |
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return true; |
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} |
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|
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bool grpc_channel_stack_builder_move_prev( |
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grpc_channel_stack_builder_iterator *iterator) { |
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if (iterator->node == &iterator->builder->begin) return false; |
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iterator->node = iterator->node->prev; |
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return true; |
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} |
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|
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bool grpc_channel_stack_builder_move_prev( |
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grpc_channel_stack_builder_iterator *iterator); |
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|
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void grpc_channel_stack_builder_set_name(grpc_channel_stack_builder *builder, |
||||
const char *name) { |
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GPR_ASSERT(builder->name == NULL); |
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builder->name = name; |
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} |
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|
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void grpc_channel_stack_builder_set_channel_arguments( |
||||
grpc_channel_stack_builder *builder, const grpc_channel_args *args) { |
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GPR_ASSERT(builder->args == NULL); |
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builder->args = args; |
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} |
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|
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void grpc_channel_stack_builder_set_transport( |
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grpc_channel_stack_builder *builder, grpc_transport *transport) { |
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GPR_ASSERT(builder->transport == NULL); |
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builder->transport = transport; |
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} |
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|
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grpc_transport *grpc_channel_stack_builder_get_transport( |
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grpc_channel_stack_builder *builder) { |
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return builder->transport; |
||||
} |
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|
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const grpc_channel_args *grpc_channel_stack_builder_get_channel_arguments( |
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grpc_channel_stack_builder *builder) { |
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return builder->args; |
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} |
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|
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bool grpc_channel_stack_builder_append_filter( |
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grpc_channel_stack_builder *builder, const grpc_channel_filter *filter, |
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grpc_post_filter_create_init_func post_init_func, void *user_data) { |
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grpc_channel_stack_builder_iterator *it = |
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grpc_channel_stack_builder_create_iterator_at_last(builder); |
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bool ok = grpc_channel_stack_builder_add_filter_before( |
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it, filter, post_init_func, user_data); |
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grpc_channel_stack_builder_iterator_destroy(it); |
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return ok; |
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} |
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|
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bool grpc_channel_stack_builder_prepend_filter( |
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grpc_channel_stack_builder *builder, const grpc_channel_filter *filter, |
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grpc_post_filter_create_init_func post_init_func, void *user_data) { |
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grpc_channel_stack_builder_iterator *it = |
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grpc_channel_stack_builder_create_iterator_at_first(builder); |
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bool ok = grpc_channel_stack_builder_add_filter_after( |
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it, filter, post_init_func, user_data); |
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grpc_channel_stack_builder_iterator_destroy(it); |
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return ok; |
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} |
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|
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static void add_after(filter_node *before, const grpc_channel_filter *filter, |
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grpc_post_filter_create_init_func post_init_func, |
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void *user_data) { |
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filter_node *new = gpr_malloc(sizeof(*new)); |
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new->next = before->next; |
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new->prev = before; |
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new->next->prev = new->prev->next = new; |
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new->filter = filter; |
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new->init = post_init_func; |
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new->init_arg = user_data; |
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} |
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|
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bool grpc_channel_stack_builder_add_filter_before( |
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grpc_channel_stack_builder_iterator *iterator, |
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const grpc_channel_filter *filter, |
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grpc_post_filter_create_init_func post_init_func, void *user_data) { |
||||
if (iterator->node == &iterator->builder->begin) return false; |
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add_after(iterator->node->prev, filter, post_init_func, user_data); |
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return true; |
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} |
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|
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bool grpc_channel_stack_builder_add_filter_after( |
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grpc_channel_stack_builder_iterator *iterator, |
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const grpc_channel_filter *filter, |
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grpc_post_filter_create_init_func post_init_func, void *user_data) { |
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if (iterator->node == &iterator->builder->end) return false; |
||||
add_after(iterator->node, filter, post_init_func, user_data); |
||||
return true; |
||||
} |
||||
|
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void grpc_channel_stack_builder_destroy(grpc_channel_stack_builder *builder) { |
||||
filter_node *p = builder->begin.next; |
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while (p != &builder->end) { |
||||
filter_node *next = p->next; |
||||
gpr_free(p); |
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p = next; |
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} |
||||
gpr_free(builder); |
||||
} |
||||
|
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void *grpc_channel_stack_builder_finish(grpc_exec_ctx *exec_ctx, |
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grpc_channel_stack_builder *builder, |
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size_t prefix_bytes, int initial_refs, |
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grpc_iomgr_cb_func destroy, |
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void *destroy_arg) { |
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// count the number of filters
|
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size_t num_filters = 0; |
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for (filter_node *p = builder->begin.next; p != &builder->end; p = p->next) { |
||||
num_filters++; |
||||
} |
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|
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// create an array of filters
|
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const grpc_channel_filter **filters = |
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gpr_malloc(sizeof(*filters) * num_filters); |
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size_t i = 0; |
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for (filter_node *p = builder->begin.next; p != &builder->end; p = p->next) { |
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filters[i++] = p->filter; |
||||
} |
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|
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// calculate the size of the channel stack
|
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size_t channel_stack_size = grpc_channel_stack_size(filters, num_filters); |
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|
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// allocate memory, with prefix_bytes followed by channel_stack_size
|
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char *result = gpr_malloc(prefix_bytes + channel_stack_size); |
||||
// fetch a pointer to the channel stack
|
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grpc_channel_stack *channel_stack = |
||||
(grpc_channel_stack *)(result + prefix_bytes); |
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// and initialize it
|
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grpc_channel_stack_init(exec_ctx, initial_refs, destroy, |
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destroy_arg == NULL ? result : destroy_arg, filters, |
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num_filters, builder->args, builder->name, |
||||
channel_stack); |
||||
|
||||
// run post-initialization functions
|
||||
i = 0; |
||||
for (filter_node *p = builder->begin.next; p != &builder->end; p = p->next) { |
||||
if (p->init != NULL) { |
||||
p->init(channel_stack, grpc_channel_stack_element(channel_stack, i), |
||||
p->init_arg); |
||||
} |
||||
i++; |
||||
} |
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|
||||
grpc_channel_stack_builder_destroy(builder); |
||||
gpr_free((grpc_channel_filter **)filters); |
||||
|
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return result; |
||||
} |
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@ -0,0 +1,155 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2016, 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_CORE_CHANNEL_CHANNEL_STACK_BUILDER_H |
||||
#define GRPC_CORE_CHANNEL_CHANNEL_STACK_BUILDER_H |
||||
|
||||
#include <stdbool.h> |
||||
|
||||
#include "src/core/channel/channel_args.h" |
||||
#include "src/core/channel/channel_stack.h" |
||||
|
||||
/// grpc_channel_stack_builder offers a programmatic interface to selected
|
||||
/// and order channel filters
|
||||
typedef struct grpc_channel_stack_builder grpc_channel_stack_builder; |
||||
typedef struct grpc_channel_stack_builder_iterator |
||||
grpc_channel_stack_builder_iterator; |
||||
|
||||
/// Create a new channel stack builder
|
||||
grpc_channel_stack_builder *grpc_channel_stack_builder_create(void); |
||||
|
||||
/// Assign a name to the channel stack: \a name must be statically allocated
|
||||
void grpc_channel_stack_builder_set_name(grpc_channel_stack_builder *builder, |
||||
const char *name); |
||||
|
||||
/// Attach \a transport to the builder (does not take ownership)
|
||||
void grpc_channel_stack_builder_set_transport( |
||||
grpc_channel_stack_builder *builder, grpc_transport *transport); |
||||
|
||||
/// Fetch attached transport
|
||||
grpc_transport *grpc_channel_stack_builder_get_transport( |
||||
grpc_channel_stack_builder *builder); |
||||
|
||||
/// Set channel arguments: \a args must continue to exist until after
|
||||
/// grpc_channel_stack_builder_finish returns
|
||||
void grpc_channel_stack_builder_set_channel_arguments( |
||||
grpc_channel_stack_builder *builder, const grpc_channel_args *args); |
||||
|
||||
/// Return a borrowed pointer to the channel arguments
|
||||
const grpc_channel_args *grpc_channel_stack_builder_get_channel_arguments( |
||||
grpc_channel_stack_builder *builder); |
||||
|
||||
/// Begin iterating over already defined filters in the builder at the beginning
|
||||
grpc_channel_stack_builder_iterator * |
||||
grpc_channel_stack_builder_create_iterator_at_first( |
||||
grpc_channel_stack_builder *builder); |
||||
|
||||
/// Begin iterating over already defined filters in the builder at the end
|
||||
grpc_channel_stack_builder_iterator * |
||||
grpc_channel_stack_builder_create_iterator_at_last( |
||||
grpc_channel_stack_builder *builder); |
||||
|
||||
/// Is an iterator at the first element?
|
||||
bool grpc_channel_stack_builder_iterator_is_first( |
||||
grpc_channel_stack_builder_iterator *iterator); |
||||
|
||||
/// Is an iterator at the end?
|
||||
bool grpc_channel_stack_builder_iterator_is_end( |
||||
grpc_channel_stack_builder_iterator *iterator); |
||||
|
||||
/// Move an iterator to the next item
|
||||
bool grpc_channel_stack_builder_move_next( |
||||
grpc_channel_stack_builder_iterator *iterator); |
||||
|
||||
/// Move an iterator to the previous item
|
||||
bool grpc_channel_stack_builder_move_prev( |
||||
grpc_channel_stack_builder_iterator *iterator); |
||||
|
||||
typedef void (*grpc_post_filter_create_init_func)( |
||||
grpc_channel_stack *channel_stack, grpc_channel_element *elem, void *arg); |
||||
|
||||
/// Add \a filter to the stack, after \a iterator.
|
||||
/// Call \a post_init_func(..., \a user_data) once the channel stack is
|
||||
/// created.
|
||||
bool grpc_channel_stack_builder_add_filter_after( |
||||
grpc_channel_stack_builder_iterator *iterator, |
||||
const grpc_channel_filter *filter, |
||||
grpc_post_filter_create_init_func post_init_func, |
||||
void *user_data) GRPC_MUST_USE_RESULT; |
||||
|
||||
/// Add \a filter to the stack, before \a iterator.
|
||||
/// Call \a post_init_func(..., \a user_data) once the channel stack is
|
||||
/// created.
|
||||
bool grpc_channel_stack_builder_add_filter_before( |
||||
grpc_channel_stack_builder_iterator *iterator, |
||||
const grpc_channel_filter *filter, |
||||
grpc_post_filter_create_init_func post_init_func, |
||||
void *user_data) GRPC_MUST_USE_RESULT; |
||||
|
||||
/// Add \a filter to the beginning of the filter list.
|
||||
/// Call \a post_init_func(..., \a user_data) once the channel stack is
|
||||
/// created.
|
||||
bool grpc_channel_stack_builder_prepend_filter( |
||||
grpc_channel_stack_builder *builder, const grpc_channel_filter *filter, |
||||
grpc_post_filter_create_init_func post_init_func, |
||||
void *user_data) GRPC_MUST_USE_RESULT; |
||||
|
||||
/// Add \a filter to the end of the filter list.
|
||||
/// Call \a post_init_func(..., \a user_data) once the channel stack is
|
||||
/// created.
|
||||
bool grpc_channel_stack_builder_append_filter( |
||||
grpc_channel_stack_builder *builder, const grpc_channel_filter *filter, |
||||
grpc_post_filter_create_init_func post_init_func, |
||||
void *user_data) GRPC_MUST_USE_RESULT; |
||||
|
||||
/// Terminate iteration and destroy \a iterator
|
||||
void grpc_channel_stack_builder_iterator_destroy( |
||||
grpc_channel_stack_builder_iterator *iterator); |
||||
|
||||
/// Destroy the builder, return the freshly minted channel stack
|
||||
/// Allocates \a prefix_bytes bytes before the channel stack
|
||||
/// Returns the base pointer of the allocated block
|
||||
/// \a initial_refs, \a destroy, \a destroy_arg are as per
|
||||
/// grpc_channel_stack_init
|
||||
void *grpc_channel_stack_builder_finish(grpc_exec_ctx *exec_ctx, |
||||
grpc_channel_stack_builder *builder, |
||||
size_t prefix_bytes, int initial_refs, |
||||
grpc_iomgr_cb_func destroy, |
||||
void *destroy_arg); |
||||
|
||||
/// Destroy the builder without creating a channel stack
|
||||
void grpc_channel_stack_builder_destroy(grpc_channel_stack_builder *builder); |
||||
|
||||
extern int grpc_trace_channel_stack_builder; |
||||
|
||||
#endif /* GRPC_CORE_CHANNEL_CHANNEL_STACK_BUILDER_H */ |
||||
@ -1,243 +0,0 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2015-2016, 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 "src/core/channel/client_uchannel.h" |
||||
|
||||
#include <string.h> |
||||
|
||||
#include "src/core/census/grpc_filter.h" |
||||
#include "src/core/channel/channel_args.h" |
||||
#include "src/core/channel/client_channel.h" |
||||
#include "src/core/channel/compress_filter.h" |
||||
#include "src/core/channel/subchannel_call_holder.h" |
||||
#include "src/core/iomgr/iomgr.h" |
||||
#include "src/core/support/string.h" |
||||
#include "src/core/surface/channel.h" |
||||
#include "src/core/transport/connectivity_state.h" |
||||
|
||||
#include <grpc/support/alloc.h> |
||||
#include <grpc/support/log.h> |
||||
#include <grpc/support/sync.h> |
||||
#include <grpc/support/useful.h> |
||||
|
||||
/** Microchannel (uchannel) implementation: a lightweight channel without any
|
||||
* load-balancing mechanisms meant for communication from within the core. */ |
||||
|
||||
typedef struct client_uchannel_channel_data { |
||||
/** master channel - the grpc_channel instance that ultimately owns
|
||||
this channel_data via its channel stack. |
||||
We occasionally use this to bump the refcount on the master channel |
||||
to keep ourselves alive through an asynchronous operation. */ |
||||
grpc_channel_stack *owning_stack; |
||||
|
||||
/** connectivity state being tracked */ |
||||
grpc_connectivity_state_tracker state_tracker; |
||||
|
||||
/** the subchannel wrapped by the microchannel */ |
||||
grpc_connected_subchannel *connected_subchannel; |
||||
|
||||
/** the callback used to stay subscribed to subchannel connectivity
|
||||
* notifications */ |
||||
grpc_closure connectivity_cb; |
||||
|
||||
/** the current connectivity state of the wrapped subchannel */ |
||||
grpc_connectivity_state subchannel_connectivity; |
||||
|
||||
gpr_mu mu_state; |
||||
} channel_data; |
||||
|
||||
typedef grpc_subchannel_call_holder call_data; |
||||
|
||||
static void monitor_subchannel(grpc_exec_ctx *exec_ctx, void *arg, |
||||
bool iomgr_success) { |
||||
channel_data *chand = arg; |
||||
grpc_connectivity_state_set(exec_ctx, &chand->state_tracker, |
||||
chand->subchannel_connectivity, |
||||
"uchannel_monitor_subchannel"); |
||||
grpc_connected_subchannel_notify_on_state_change( |
||||
exec_ctx, chand->connected_subchannel, NULL, |
||||
&chand->subchannel_connectivity, &chand->connectivity_cb); |
||||
} |
||||
|
||||
static char *cuc_get_peer(grpc_exec_ctx *exec_ctx, grpc_call_element *elem) { |
||||
return grpc_subchannel_call_holder_get_peer(exec_ctx, elem->call_data); |
||||
} |
||||
|
||||
static void cuc_start_transport_stream_op(grpc_exec_ctx *exec_ctx, |
||||
grpc_call_element *elem, |
||||
grpc_transport_stream_op *op) { |
||||
GRPC_CALL_LOG_OP(GPR_INFO, elem, op); |
||||
grpc_subchannel_call_holder_perform_op(exec_ctx, elem->call_data, op); |
||||
} |
||||
|
||||
static void cuc_start_transport_op(grpc_exec_ctx *exec_ctx, |
||||
grpc_channel_element *elem, |
||||
grpc_transport_op *op) { |
||||
channel_data *chand = elem->channel_data; |
||||
|
||||
grpc_exec_ctx_enqueue(exec_ctx, op->on_consumed, true, NULL); |
||||
|
||||
GPR_ASSERT(op->set_accept_stream == false); |
||||
GPR_ASSERT(op->bind_pollset == NULL); |
||||
|
||||
if (op->on_connectivity_state_change != NULL) { |
||||
grpc_connectivity_state_notify_on_state_change( |
||||
exec_ctx, &chand->state_tracker, op->connectivity_state, |
||||
op->on_connectivity_state_change); |
||||
op->on_connectivity_state_change = NULL; |
||||
op->connectivity_state = NULL; |
||||
} |
||||
|
||||
if (op->disconnect) { |
||||
grpc_connectivity_state_set(exec_ctx, &chand->state_tracker, |
||||
GRPC_CHANNEL_FATAL_FAILURE, "disconnect"); |
||||
} |
||||
} |
||||
|
||||
static int cuc_pick_subchannel(grpc_exec_ctx *exec_ctx, void *arg, |
||||
grpc_metadata_batch *initial_metadata, |
||||
grpc_connected_subchannel **connected_subchannel, |
||||
grpc_closure *on_ready) { |
||||
channel_data *chand = arg; |
||||
GPR_ASSERT(initial_metadata != NULL); |
||||
*connected_subchannel = chand->connected_subchannel; |
||||
return 1; |
||||
} |
||||
|
||||
/* Constructor for call_data */ |
||||
static void cuc_init_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, |
||||
grpc_call_element_args *args) { |
||||
grpc_subchannel_call_holder_init(elem->call_data, cuc_pick_subchannel, |
||||
elem->channel_data, args->call_stack); |
||||
} |
||||
|
||||
/* Destructor for call_data */ |
||||
static void cuc_destroy_call_elem(grpc_exec_ctx *exec_ctx, |
||||
grpc_call_element *elem) { |
||||
grpc_subchannel_call_holder_destroy(exec_ctx, elem->call_data); |
||||
} |
||||
|
||||
/* Constructor for channel_data */ |
||||
static void cuc_init_channel_elem(grpc_exec_ctx *exec_ctx, |
||||
grpc_channel_element *elem, |
||||
grpc_channel_element_args *args) { |
||||
channel_data *chand = elem->channel_data; |
||||
memset(chand, 0, sizeof(*chand)); |
||||
grpc_closure_init(&chand->connectivity_cb, monitor_subchannel, chand); |
||||
GPR_ASSERT(args->is_last); |
||||
GPR_ASSERT(elem->filter == &grpc_client_uchannel_filter); |
||||
chand->owning_stack = args->channel_stack; |
||||
grpc_connectivity_state_init(&chand->state_tracker, GRPC_CHANNEL_IDLE, |
||||
"client_uchannel"); |
||||
gpr_mu_init(&chand->mu_state); |
||||
} |
||||
|
||||
/* Destructor for channel_data */ |
||||
static void cuc_destroy_channel_elem(grpc_exec_ctx *exec_ctx, |
||||
grpc_channel_element *elem) { |
||||
channel_data *chand = elem->channel_data; |
||||
/* cancel subscription */ |
||||
grpc_connected_subchannel_notify_on_state_change( |
||||
exec_ctx, chand->connected_subchannel, NULL, NULL, |
||||
&chand->connectivity_cb); |
||||
grpc_connectivity_state_destroy(exec_ctx, &chand->state_tracker); |
||||
gpr_mu_destroy(&chand->mu_state); |
||||
GRPC_CONNECTED_SUBCHANNEL_UNREF(exec_ctx, chand->connected_subchannel, |
||||
"uchannel"); |
||||
} |
||||
|
||||
static void cuc_set_pollset(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, |
||||
grpc_pollset *pollset) { |
||||
call_data *calld = elem->call_data; |
||||
calld->pollset = pollset; |
||||
} |
||||
|
||||
const grpc_channel_filter grpc_client_uchannel_filter = { |
||||
cuc_start_transport_stream_op, cuc_start_transport_op, sizeof(call_data), |
||||
cuc_init_call_elem, cuc_set_pollset, cuc_destroy_call_elem, |
||||
sizeof(channel_data), cuc_init_channel_elem, cuc_destroy_channel_elem, |
||||
cuc_get_peer, "client-uchannel", |
||||
}; |
||||
|
||||
grpc_connectivity_state grpc_client_uchannel_check_connectivity_state( |
||||
grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, int try_to_connect) { |
||||
channel_data *chand = elem->channel_data; |
||||
grpc_connectivity_state out; |
||||
gpr_mu_lock(&chand->mu_state); |
||||
out = grpc_connectivity_state_check(&chand->state_tracker); |
||||
gpr_mu_unlock(&chand->mu_state); |
||||
return out; |
||||
} |
||||
|
||||
void grpc_client_uchannel_watch_connectivity_state( |
||||
grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, grpc_pollset *pollset, |
||||
grpc_connectivity_state *state, grpc_closure *on_complete) { |
||||
channel_data *chand = elem->channel_data; |
||||
gpr_mu_lock(&chand->mu_state); |
||||
grpc_connectivity_state_notify_on_state_change( |
||||
exec_ctx, &chand->state_tracker, state, on_complete); |
||||
gpr_mu_unlock(&chand->mu_state); |
||||
} |
||||
|
||||
grpc_channel *grpc_client_uchannel_create(grpc_subchannel *subchannel, |
||||
grpc_channel_args *args) { |
||||
grpc_channel *channel = NULL; |
||||
#define MAX_FILTERS 3 |
||||
const grpc_channel_filter *filters[MAX_FILTERS]; |
||||
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
||||
size_t n = 0; |
||||
|
||||
if (grpc_channel_args_is_census_enabled(args)) { |
||||
filters[n++] = &grpc_client_census_filter; |
||||
} |
||||
filters[n++] = &grpc_compress_filter; |
||||
filters[n++] = &grpc_client_uchannel_filter; |
||||
GPR_ASSERT(n <= MAX_FILTERS); |
||||
|
||||
channel = |
||||
grpc_channel_create_from_filters(&exec_ctx, NULL, filters, n, args, 1); |
||||
|
||||
return channel; |
||||
} |
||||
|
||||
void grpc_client_uchannel_set_connected_subchannel( |
||||
grpc_channel *uchannel, grpc_connected_subchannel *connected_subchannel) { |
||||
grpc_channel_element *elem = |
||||
grpc_channel_stack_last_element(grpc_channel_get_channel_stack(uchannel)); |
||||
channel_data *chand = elem->channel_data; |
||||
GPR_ASSERT(elem->filter == &grpc_client_uchannel_filter); |
||||
gpr_mu_lock(&chand->mu_state); |
||||
chand->connected_subchannel = connected_subchannel; |
||||
GRPC_CONNECTED_SUBCHANNEL_REF(connected_subchannel, "uchannel"); |
||||
gpr_mu_unlock(&chand->mu_state); |
||||
} |
||||
@ -0,0 +1,313 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2015-2016, 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 "src/core/http/parser.h" |
||||
|
||||
#include <string.h> |
||||
|
||||
#include <grpc/support/alloc.h> |
||||
#include <grpc/support/log.h> |
||||
#include <grpc/support/useful.h> |
||||
|
||||
static char *buf2str(void *buffer, size_t length) { |
||||
char *out = gpr_malloc(length + 1); |
||||
memcpy(out, buffer, length); |
||||
out[length] = 0; |
||||
return out; |
||||
} |
||||
|
||||
static int handle_response_line(grpc_http_parser *parser) { |
||||
uint8_t *beg = parser->cur_line; |
||||
uint8_t *cur = beg; |
||||
uint8_t *end = beg + parser->cur_line_length; |
||||
|
||||
if (cur == end || *cur++ != 'H') goto error; |
||||
if (cur == end || *cur++ != 'T') goto error; |
||||
if (cur == end || *cur++ != 'T') goto error; |
||||
if (cur == end || *cur++ != 'P') goto error; |
||||
if (cur == end || *cur++ != '/') goto error; |
||||
if (cur == end || *cur++ != '1') goto error; |
||||
if (cur == end || *cur++ != '.') goto error; |
||||
if (cur == end || *cur < '0' || *cur++ > '1') goto error; |
||||
if (cur == end || *cur++ != ' ') goto error; |
||||
if (cur == end || *cur < '1' || *cur++ > '9') goto error; |
||||
if (cur == end || *cur < '0' || *cur++ > '9') goto error; |
||||
if (cur == end || *cur < '0' || *cur++ > '9') goto error; |
||||
parser->http.response.status = |
||||
(cur[-3] - '0') * 100 + (cur[-2] - '0') * 10 + (cur[-1] - '0'); |
||||
if (cur == end || *cur++ != ' ') goto error; |
||||
|
||||
/* we don't really care about the status code message */ |
||||
|
||||
return 1; |
||||
|
||||
error: |
||||
gpr_log(GPR_ERROR, "Failed parsing response line"); |
||||
return 0; |
||||
} |
||||
|
||||
static int handle_request_line(grpc_http_parser *parser) { |
||||
uint8_t *beg = parser->cur_line; |
||||
uint8_t *cur = beg; |
||||
uint8_t *end = beg + parser->cur_line_length; |
||||
uint8_t vers_major = 0; |
||||
uint8_t vers_minor = 0; |
||||
|
||||
while (cur != end && *cur++ != ' ') |
||||
; |
||||
if (cur == end) goto error; |
||||
parser->http.request.method = buf2str(beg, (size_t)(cur - beg - 1)); |
||||
|
||||
beg = cur; |
||||
while (cur != end && *cur++ != ' ') |
||||
; |
||||
if (cur == end) goto error; |
||||
parser->http.request.path = buf2str(beg, (size_t)(cur - beg - 1)); |
||||
|
||||
if (cur == end || *cur++ != 'H') goto error; |
||||
if (cur == end || *cur++ != 'T') goto error; |
||||
if (cur == end || *cur++ != 'T') goto error; |
||||
if (cur == end || *cur++ != 'P') goto error; |
||||
if (cur == end || *cur++ != '/') goto error; |
||||
vers_major = (uint8_t)(*cur++ - '1' + 1); |
||||
++cur; |
||||
if (cur == end) goto error; |
||||
vers_minor = (uint8_t)(*cur++ - '1' + 1); |
||||
|
||||
if (vers_major == 1) { |
||||
if (vers_minor == 0) { |
||||
parser->http.request.version = GRPC_HTTP_HTTP10; |
||||
} else if (vers_minor == 1) { |
||||
parser->http.request.version = GRPC_HTTP_HTTP11; |
||||
} else { |
||||
goto error; |
||||
} |
||||
} else if (vers_major == 2) { |
||||
if (vers_minor == 0) { |
||||
parser->http.request.version = GRPC_HTTP_HTTP20; |
||||
} else { |
||||
goto error; |
||||
} |
||||
} else { |
||||
goto error; |
||||
} |
||||
|
||||
return 1; |
||||
|
||||
error: |
||||
gpr_log(GPR_ERROR, "Failed parsing request line"); |
||||
return 0; |
||||
} |
||||
|
||||
static int handle_first_line(grpc_http_parser *parser) { |
||||
if (parser->cur_line[0] == 'H') { |
||||
parser->type = GRPC_HTTP_RESPONSE; |
||||
return handle_response_line(parser); |
||||
} else { |
||||
parser->type = GRPC_HTTP_REQUEST; |
||||
return handle_request_line(parser); |
||||
} |
||||
} |
||||
|
||||
static int add_header(grpc_http_parser *parser) { |
||||
uint8_t *beg = parser->cur_line; |
||||
uint8_t *cur = beg; |
||||
uint8_t *end = beg + parser->cur_line_length; |
||||
size_t *hdr_count = NULL; |
||||
grpc_http_header **hdrs = NULL; |
||||
grpc_http_header hdr = {NULL, NULL}; |
||||
|
||||
GPR_ASSERT(cur != end); |
||||
|
||||
if (*cur == ' ' || *cur == '\t') { |
||||
gpr_log(GPR_ERROR, "Continued header lines not supported yet"); |
||||
goto error; |
||||
} |
||||
|
||||
while (cur != end && *cur != ':') { |
||||
cur++; |
||||
} |
||||
if (cur == end) { |
||||
gpr_log(GPR_ERROR, "Didn't find ':' in header string"); |
||||
goto error; |
||||
} |
||||
GPR_ASSERT(cur >= beg); |
||||
hdr.key = buf2str(beg, (size_t)(cur - beg)); |
||||
cur++; /* skip : */ |
||||
|
||||
while (cur != end && (*cur == ' ' || *cur == '\t')) { |
||||
cur++; |
||||
} |
||||
GPR_ASSERT(end - cur >= 2); |
||||
hdr.value = buf2str(cur, (size_t)(end - cur) - 2); |
||||
|
||||
if (parser->type == GRPC_HTTP_RESPONSE) { |
||||
hdr_count = &parser->http.response.hdr_count; |
||||
hdrs = &parser->http.response.hdrs; |
||||
} else if (parser->type == GRPC_HTTP_REQUEST) { |
||||
hdr_count = &parser->http.request.hdr_count; |
||||
hdrs = &parser->http.request.hdrs; |
||||
} else { |
||||
return 0; |
||||
} |
||||
|
||||
if (*hdr_count == parser->hdr_capacity) { |
||||
parser->hdr_capacity = |
||||
GPR_MAX(parser->hdr_capacity + 1, parser->hdr_capacity * 3 / 2); |
||||
*hdrs = gpr_realloc(*hdrs, parser->hdr_capacity * sizeof(**hdrs)); |
||||
} |
||||
(*hdrs)[(*hdr_count)++] = hdr; |
||||
return 1; |
||||
|
||||
error: |
||||
gpr_free(hdr.key); |
||||
gpr_free(hdr.value); |
||||
return 0; |
||||
} |
||||
|
||||
static int finish_line(grpc_http_parser *parser) { |
||||
switch (parser->state) { |
||||
case GRPC_HTTP_FIRST_LINE: |
||||
if (!handle_first_line(parser)) { |
||||
return 0; |
||||
} |
||||
parser->state = GRPC_HTTP_HEADERS; |
||||
break; |
||||
case GRPC_HTTP_HEADERS: |
||||
if (parser->cur_line_length == 2) { |
||||
parser->state = GRPC_HTTP_BODY; |
||||
break; |
||||
} |
||||
if (!add_header(parser)) { |
||||
return 0; |
||||
} |
||||
break; |
||||
case GRPC_HTTP_BODY: |
||||
GPR_UNREACHABLE_CODE(return 0); |
||||
} |
||||
|
||||
parser->cur_line_length = 0; |
||||
return 1; |
||||
} |
||||
|
||||
static int addbyte_body(grpc_http_parser *parser, uint8_t byte) { |
||||
size_t *body_length = NULL; |
||||
char **body = NULL; |
||||
|
||||
if (parser->type == GRPC_HTTP_RESPONSE) { |
||||
body_length = &parser->http.response.body_length; |
||||
body = &parser->http.response.body; |
||||
} else if (parser->type == GRPC_HTTP_REQUEST) { |
||||
body_length = &parser->http.request.body_length; |
||||
body = &parser->http.request.body; |
||||
} else { |
||||
return 0; |
||||
} |
||||
|
||||
if (*body_length == parser->body_capacity) { |
||||
parser->body_capacity = GPR_MAX(8, parser->body_capacity * 3 / 2); |
||||
*body = gpr_realloc((void *)*body, parser->body_capacity); |
||||
} |
||||
(*body)[*body_length] = (char)byte; |
||||
(*body_length)++; |
||||
|
||||
return 1; |
||||
} |
||||
|
||||
static int addbyte(grpc_http_parser *parser, uint8_t byte) { |
||||
switch (parser->state) { |
||||
case GRPC_HTTP_FIRST_LINE: |
||||
case GRPC_HTTP_HEADERS: |
||||
if (parser->cur_line_length >= GRPC_HTTP_PARSER_MAX_HEADER_LENGTH) { |
||||
gpr_log(GPR_ERROR, "HTTP client max line length (%d) exceeded", |
||||
GRPC_HTTP_PARSER_MAX_HEADER_LENGTH); |
||||
return 0; |
||||
} |
||||
parser->cur_line[parser->cur_line_length] = byte; |
||||
parser->cur_line_length++; |
||||
if (parser->cur_line_length >= 2 && |
||||
parser->cur_line[parser->cur_line_length - 2] == '\r' && |
||||
parser->cur_line[parser->cur_line_length - 1] == '\n') { |
||||
return finish_line(parser); |
||||
} else { |
||||
return 1; |
||||
} |
||||
GPR_UNREACHABLE_CODE(return 0); |
||||
case GRPC_HTTP_BODY: |
||||
return addbyte_body(parser, byte); |
||||
} |
||||
GPR_UNREACHABLE_CODE(return 0); |
||||
} |
||||
|
||||
void grpc_http_parser_init(grpc_http_parser *parser) { |
||||
memset(parser, 0, sizeof(*parser)); |
||||
parser->state = GRPC_HTTP_FIRST_LINE; |
||||
parser->type = GRPC_HTTP_UNKNOWN; |
||||
} |
||||
|
||||
void grpc_http_parser_destroy(grpc_http_parser *parser) { |
||||
size_t i; |
||||
if (parser->type == GRPC_HTTP_RESPONSE) { |
||||
gpr_free(parser->http.response.body); |
||||
for (i = 0; i < parser->http.response.hdr_count; i++) { |
||||
gpr_free(parser->http.response.hdrs[i].key); |
||||
gpr_free(parser->http.response.hdrs[i].value); |
||||
} |
||||
gpr_free(parser->http.response.hdrs); |
||||
} else if (parser->type == GRPC_HTTP_REQUEST) { |
||||
gpr_free(parser->http.request.body); |
||||
for (i = 0; i < parser->http.request.hdr_count; i++) { |
||||
gpr_free(parser->http.request.hdrs[i].key); |
||||
gpr_free(parser->http.request.hdrs[i].value); |
||||
} |
||||
gpr_free(parser->http.request.hdrs); |
||||
gpr_free(parser->http.request.method); |
||||
gpr_free(parser->http.request.path); |
||||
} |
||||
} |
||||
|
||||
int grpc_http_parser_parse(grpc_http_parser *parser, gpr_slice slice) { |
||||
size_t i; |
||||
|
||||
for (i = 0; i < GPR_SLICE_LENGTH(slice); i++) { |
||||
if (!addbyte(parser, GPR_SLICE_START_PTR(slice)[i])) { |
||||
return 0; |
||||
} |
||||
} |
||||
|
||||
return 1; |
||||
} |
||||
|
||||
int grpc_http_parser_eof(grpc_http_parser *parser) { |
||||
return parser->state == GRPC_HTTP_BODY; |
||||
} |
||||
@ -0,0 +1,116 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2015-2016, 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_CORE_HTTP_PARSER_H |
||||
#define GRPC_CORE_HTTP_PARSER_H |
||||
|
||||
#include <grpc/support/port_platform.h> |
||||
#include <grpc/support/slice.h> |
||||
|
||||
/* Maximum length of a header string of the form 'Key: Value\r\n' */ |
||||
#define GRPC_HTTP_PARSER_MAX_HEADER_LENGTH 4096 |
||||
|
||||
/* A single header to be passed in a request */ |
||||
typedef struct grpc_http_header { |
||||
char *key; |
||||
char *value; |
||||
} grpc_http_header; |
||||
|
||||
typedef enum { |
||||
GRPC_HTTP_FIRST_LINE, |
||||
GRPC_HTTP_HEADERS, |
||||
GRPC_HTTP_BODY |
||||
} grpc_http_parser_state; |
||||
|
||||
typedef enum { |
||||
GRPC_HTTP_HTTP10, |
||||
GRPC_HTTP_HTTP11, |
||||
GRPC_HTTP_HTTP20, |
||||
} grpc_http_version; |
||||
|
||||
typedef enum { |
||||
GRPC_HTTP_RESPONSE, |
||||
GRPC_HTTP_REQUEST, |
||||
GRPC_HTTP_UNKNOWN |
||||
} grpc_http_type; |
||||
|
||||
/* A request */ |
||||
typedef struct grpc_http_request { |
||||
/* Method of the request (e.g. GET, POST) */ |
||||
char *method; |
||||
/* The path of the resource to fetch */ |
||||
char *path; |
||||
/* HTTP version to use */ |
||||
grpc_http_version version; |
||||
/* Headers attached to the request */ |
||||
size_t hdr_count; |
||||
grpc_http_header *hdrs; |
||||
/* Body: length and contents; contents are NOT null-terminated */ |
||||
size_t body_length; |
||||
char *body; |
||||
} grpc_http_request; |
||||
|
||||
/* A response */ |
||||
typedef struct grpc_http_response { |
||||
/* HTTP status code */ |
||||
int status; |
||||
/* Headers: count and key/values */ |
||||
size_t hdr_count; |
||||
grpc_http_header *hdrs; |
||||
/* Body: length and contents; contents are NOT null-terminated */ |
||||
size_t body_length; |
||||
char *body; |
||||
} grpc_http_response; |
||||
|
||||
typedef struct { |
||||
grpc_http_parser_state state; |
||||
grpc_http_type type; |
||||
|
||||
union { |
||||
grpc_http_response response; |
||||
grpc_http_request request; |
||||
} http; |
||||
size_t body_capacity; |
||||
size_t hdr_capacity; |
||||
|
||||
uint8_t cur_line[GRPC_HTTP_PARSER_MAX_HEADER_LENGTH]; |
||||
size_t cur_line_length; |
||||
} grpc_http_parser; |
||||
|
||||
void grpc_http_parser_init(grpc_http_parser *parser); |
||||
void grpc_http_parser_destroy(grpc_http_parser *parser); |
||||
|
||||
int grpc_http_parser_parse(grpc_http_parser *parser, gpr_slice slice); |
||||
int grpc_http_parser_eof(grpc_http_parser *parser); |
||||
|
||||
#endif /* GRPC_CORE_HTTP_PARSER_H */ |
||||
@ -1,211 +0,0 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2015, 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 "src/core/httpcli/parser.h" |
||||
|
||||
#include <string.h> |
||||
|
||||
#include <grpc/support/alloc.h> |
||||
#include <grpc/support/log.h> |
||||
#include <grpc/support/useful.h> |
||||
|
||||
static int handle_response_line(grpc_httpcli_parser *parser) { |
||||
uint8_t *beg = parser->cur_line; |
||||
uint8_t *cur = beg; |
||||
uint8_t *end = beg + parser->cur_line_length; |
||||
|
||||
if (cur == end || *cur++ != 'H') goto error; |
||||
if (cur == end || *cur++ != 'T') goto error; |
||||
if (cur == end || *cur++ != 'T') goto error; |
||||
if (cur == end || *cur++ != 'P') goto error; |
||||
if (cur == end || *cur++ != '/') goto error; |
||||
if (cur == end || *cur++ != '1') goto error; |
||||
if (cur == end || *cur++ != '.') goto error; |
||||
if (cur == end || *cur < '0' || *cur++ > '1') goto error; |
||||
if (cur == end || *cur++ != ' ') goto error; |
||||
if (cur == end || *cur < '1' || *cur++ > '9') goto error; |
||||
if (cur == end || *cur < '0' || *cur++ > '9') goto error; |
||||
if (cur == end || *cur < '0' || *cur++ > '9') goto error; |
||||
parser->r.status = |
||||
(cur[-3] - '0') * 100 + (cur[-2] - '0') * 10 + (cur[-1] - '0'); |
||||
if (cur == end || *cur++ != ' ') goto error; |
||||
|
||||
/* we don't really care about the status code message */ |
||||
|
||||
return 1; |
||||
|
||||
error: |
||||
gpr_log(GPR_ERROR, "Failed parsing response line"); |
||||
return 0; |
||||
} |
||||
|
||||
static char *buf2str(void *buffer, size_t length) { |
||||
char *out = gpr_malloc(length + 1); |
||||
memcpy(out, buffer, length); |
||||
out[length] = 0; |
||||
return out; |
||||
} |
||||
|
||||
static int add_header(grpc_httpcli_parser *parser) { |
||||
uint8_t *beg = parser->cur_line; |
||||
uint8_t *cur = beg; |
||||
uint8_t *end = beg + parser->cur_line_length; |
||||
grpc_httpcli_header hdr = {NULL, NULL}; |
||||
|
||||
GPR_ASSERT(cur != end); |
||||
|
||||
if (*cur == ' ' || *cur == '\t') { |
||||
gpr_log(GPR_ERROR, "Continued header lines not supported yet"); |
||||
goto error; |
||||
} |
||||
|
||||
while (cur != end && *cur != ':') { |
||||
cur++; |
||||
} |
||||
if (cur == end) { |
||||
gpr_log(GPR_ERROR, "Didn't find ':' in header string"); |
||||
goto error; |
||||
} |
||||
GPR_ASSERT(cur >= beg); |
||||
hdr.key = buf2str(beg, (size_t)(cur - beg)); |
||||
cur++; /* skip : */ |
||||
|
||||
while (cur != end && (*cur == ' ' || *cur == '\t')) { |
||||
cur++; |
||||
} |
||||
GPR_ASSERT(end - cur >= 2); |
||||
hdr.value = buf2str(cur, (size_t)(end - cur) - 2); |
||||
|
||||
if (parser->r.hdr_count == parser->hdr_capacity) { |
||||
parser->hdr_capacity = |
||||
GPR_MAX(parser->hdr_capacity + 1, parser->hdr_capacity * 3 / 2); |
||||
parser->r.hdrs = gpr_realloc( |
||||
parser->r.hdrs, parser->hdr_capacity * sizeof(*parser->r.hdrs)); |
||||
} |
||||
parser->r.hdrs[parser->r.hdr_count++] = hdr; |
||||
return 1; |
||||
|
||||
error: |
||||
gpr_free(hdr.key); |
||||
gpr_free(hdr.value); |
||||
return 0; |
||||
} |
||||
|
||||
static int finish_line(grpc_httpcli_parser *parser) { |
||||
switch (parser->state) { |
||||
case GRPC_HTTPCLI_INITIAL_RESPONSE: |
||||
if (!handle_response_line(parser)) { |
||||
return 0; |
||||
} |
||||
parser->state = GRPC_HTTPCLI_HEADERS; |
||||
break; |
||||
case GRPC_HTTPCLI_HEADERS: |
||||
if (parser->cur_line_length == 2) { |
||||
parser->state = GRPC_HTTPCLI_BODY; |
||||
break; |
||||
} |
||||
if (!add_header(parser)) { |
||||
return 0; |
||||
} |
||||
break; |
||||
case GRPC_HTTPCLI_BODY: |
||||
GPR_UNREACHABLE_CODE(return 0); |
||||
} |
||||
|
||||
parser->cur_line_length = 0; |
||||
return 1; |
||||
} |
||||
|
||||
static int addbyte(grpc_httpcli_parser *parser, uint8_t byte) { |
||||
switch (parser->state) { |
||||
case GRPC_HTTPCLI_INITIAL_RESPONSE: |
||||
case GRPC_HTTPCLI_HEADERS: |
||||
if (parser->cur_line_length >= GRPC_HTTPCLI_MAX_HEADER_LENGTH) { |
||||
gpr_log(GPR_ERROR, "HTTP client max line length (%d) exceeded", |
||||
GRPC_HTTPCLI_MAX_HEADER_LENGTH); |
||||
return 0; |
||||
} |
||||
parser->cur_line[parser->cur_line_length] = byte; |
||||
parser->cur_line_length++; |
||||
if (parser->cur_line_length >= 2 && |
||||
parser->cur_line[parser->cur_line_length - 2] == '\r' && |
||||
parser->cur_line[parser->cur_line_length - 1] == '\n') { |
||||
return finish_line(parser); |
||||
} else { |
||||
return 1; |
||||
} |
||||
GPR_UNREACHABLE_CODE(return 0); |
||||
case GRPC_HTTPCLI_BODY: |
||||
if (parser->r.body_length == parser->body_capacity) { |
||||
parser->body_capacity = GPR_MAX(8, parser->body_capacity * 3 / 2); |
||||
parser->r.body = |
||||
gpr_realloc((void *)parser->r.body, parser->body_capacity); |
||||
} |
||||
parser->r.body[parser->r.body_length] = (char)byte; |
||||
parser->r.body_length++; |
||||
return 1; |
||||
} |
||||
GPR_UNREACHABLE_CODE(return 0); |
||||
} |
||||
|
||||
void grpc_httpcli_parser_init(grpc_httpcli_parser *parser) { |
||||
memset(parser, 0, sizeof(*parser)); |
||||
parser->state = GRPC_HTTPCLI_INITIAL_RESPONSE; |
||||
parser->r.status = 500; |
||||
} |
||||
|
||||
void grpc_httpcli_parser_destroy(grpc_httpcli_parser *parser) { |
||||
size_t i; |
||||
gpr_free(parser->r.body); |
||||
for (i = 0; i < parser->r.hdr_count; i++) { |
||||
gpr_free(parser->r.hdrs[i].key); |
||||
gpr_free(parser->r.hdrs[i].value); |
||||
} |
||||
gpr_free(parser->r.hdrs); |
||||
} |
||||
|
||||
int grpc_httpcli_parser_parse(grpc_httpcli_parser *parser, gpr_slice slice) { |
||||
size_t i; |
||||
|
||||
for (i = 0; i < GPR_SLICE_LENGTH(slice); i++) { |
||||
if (!addbyte(parser, GPR_SLICE_START_PTR(slice)[i])) { |
||||
return 0; |
||||
} |
||||
} |
||||
|
||||
return 1; |
||||
} |
||||
|
||||
int grpc_httpcli_parser_eof(grpc_httpcli_parser *parser) { |
||||
return parser->state == GRPC_HTTPCLI_BODY; |
||||
} |
||||
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in new issue