mirror of https://github.com/grpc/grpc.git
murgatroid99
9 years ago
parent
873d04bc3d
commit
9946f2b80a
6 changed files with 412 additions and 1 deletions
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/*
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* |
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* Copyright 2015, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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#include "rb_call_credentials.h" |
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#include <ruby/ruby.h> |
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#include <ruby/thread.h> |
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#include <grpc/grpc.h> |
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#include <grpc/grpc_security.h> |
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#include "rb_call.h" |
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#include "rb_grpc.h" |
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/* grpc_rb_cCallCredentials is the ruby class that proxies
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* grpc_call_credentials */ |
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static VALUE grpc_rb_cCallCredentials = Qnil; |
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/* grpc_rb_call_credentials wraps a grpc_call_credentials. It provides a peer
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* ruby object, 'mark' to minimize copying when a credential is created from |
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* ruby. */ |
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typedef struct grpc_rb_call_credentials { |
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/* Holder of ruby objects involved in contructing the credentials */ |
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VALUE mark; |
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/* The actual credentials */ |
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grpc_call_credentials *wrapped; |
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} grpc_rb_call_credentials; |
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typedef struct callback_params { |
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VALUE get_metadata; |
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grpc_auth_metadata_context context; |
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void *user_data; |
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grpc_credentials_plugin_metadata_cb callback; |
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} callback_params; |
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static VALUE grpc_rb_call_credentials_callback(VALUE callback_args) { |
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VALUE result = rb_hash_new(); |
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VALUE empty_md = rb_hash_new(); |
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VALUE metadata = rb_funcall(rb_ary_entry(callback_args, 0), rb_intern("call"), |
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2, empty_md, rb_ary_entry(callback_args, 1)); |
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rb_hash_aset(result, rb_str_new2("metadata"), metadata); |
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rb_hash_aset(result, rb_str_new2("status"), INT2NUM(GRPC_STATUS_OK)); |
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rb_hash_aset(result, rb_str_new2("details"), rb_str_new2("")); |
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return result; |
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} |
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static VALUE grpc_rb_call_credentials_callback_rescue(VALUE args, |
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VALUE exception_object) { |
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VALUE result = rb_hash_new(); |
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rb_hash_aset(result, rb_str_new2("metadata"), Qnil); |
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/* Currently only gives the exception class name. It should be possible get
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more details */ |
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rb_hash_aset(result, rb_str_new2("status"), |
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INT2NUM(GRPC_STATUS_PERMISSION_DENIED)); |
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rb_hash_aset(result, rb_str_new2("details"), |
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rb_str_new2(rb_obj_classname(exception_object))); |
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return result; |
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} |
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static void *grpc_rb_call_credentials_callback_with_gil(void *param) { |
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callback_params *const params = (callback_params *)param; |
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VALUE auth_uri = rb_str_new_cstr(params->context.service_url); |
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/* Pass the arguments to the proc in a hash, which currently only has they key
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'auth_uri' */ |
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VALUE callback_args = rb_ary_new(); |
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VALUE args = rb_hash_new(); |
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VALUE result; |
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grpc_metadata_array md_ary; |
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grpc_status_code status; |
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VALUE details; |
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char *error_details; |
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grpc_metadata_array_init(&md_ary); |
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rb_hash_aset(args, rb_str_new2("jwt_aud_uri"), auth_uri); |
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rb_ary_push(callback_args, params->get_metadata); |
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rb_ary_push(callback_args, args); |
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result = rb_rescue(grpc_rb_call_credentials_callback, callback_args, |
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grpc_rb_call_credentials_callback_rescue, Qnil); |
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// Both callbacks return a hash, so result should be a hash
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grpc_rb_md_ary_convert(rb_hash_aref(result, rb_str_new2("metadata")), &md_ary); |
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status = NUM2INT(rb_hash_aref(result, rb_str_new2("status"))); |
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details = rb_hash_aref(result, rb_str_new2("details")); |
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error_details = StringValueCStr(details); |
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params->callback(params->user_data, md_ary.metadata, md_ary.count, status, |
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error_details); |
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grpc_metadata_array_destroy(&md_ary); |
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return NULL; |
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} |
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static void grpc_rb_call_credentials_plugin_get_metadata( |
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void *state, grpc_auth_metadata_context context, |
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grpc_credentials_plugin_metadata_cb cb, void *user_data) { |
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callback_params params; |
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params.get_metadata = (VALUE)state; |
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params.context = context; |
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params.user_data = user_data; |
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params.callback = cb; |
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rb_thread_call_with_gvl(grpc_rb_call_credentials_callback_with_gil, |
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(void*)(¶ms)); |
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} |
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static void grpc_rb_call_credentials_plugin_destroy(void *state) { |
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// Not sure what needs to be done here
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} |
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/* Destroys the credentials instances. */ |
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static void grpc_rb_call_credentials_free(void *p) { |
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grpc_rb_call_credentials *wrapper; |
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if (p == NULL) { |
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return; |
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} |
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wrapper = (grpc_rb_call_credentials *)p; |
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/* Delete the wrapped object if the mark object is Qnil, which indicates that
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* no other object is the actual owner. */ |
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if (wrapper->wrapped != NULL && wrapper->mark == Qnil) { |
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grpc_call_credentials_release(wrapper->wrapped); |
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wrapper->wrapped = NULL; |
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} |
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xfree(p); |
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} |
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/* Protects the mark object from GC */ |
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static void grpc_rb_call_credentials_mark(void *p) { |
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grpc_rb_call_credentials *wrapper = NULL; |
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if (p == NULL) { |
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return; |
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} |
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wrapper = (grpc_rb_call_credentials *)p; |
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/* If it's not already cleaned up, mark the mark object */ |
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if (wrapper->mark != Qnil) { |
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rb_gc_mark(wrapper->mark); |
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} |
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} |
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static rb_data_type_t grpc_rb_call_credentials_data_type = { |
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"grpc_call_credentials", |
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{grpc_rb_call_credentials_mark, grpc_rb_call_credentials_free, |
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GRPC_RB_MEMSIZE_UNAVAILABLE, {NULL, NULL}}, |
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NULL, |
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NULL, |
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#ifdef RUBY_TYPED_FREE_IMMEDIATELY |
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RUBY_TYPED_FREE_IMMEDIATELY |
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#endif |
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}; |
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/* Creates a wrapping object for a given call credentials. This should only be
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* called with grpc_call_credentials objects that are not already associated |
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* with any Ruby object */ |
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VALUE grpc_rb_wrap_call_credentials(grpc_call_credentials *c) { |
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if (c == NULL) { |
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return Qnil; |
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} |
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return TypedData_Wrap_Struct(grpc_rb_cCallCredentials, |
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&grpc_rb_call_credentials_data_type, c); |
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} |
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/* Allocates CallCredentials instances.
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Provides safe initial defaults for the instance fields. */ |
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static VALUE grpc_rb_call_credentials_alloc(VALUE cls) { |
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grpc_rb_call_credentials *wrapper = ALLOC(grpc_rb_call_credentials); |
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wrapper->wrapped = NULL; |
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wrapper->mark = Qnil; |
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return TypedData_Wrap_Struct(cls, &grpc_rb_call_credentials_data_type, wrapper); |
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} |
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/* Clones CallCredentials instances.
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Gives CallCredentials a consistent implementation of Ruby's object copy/dup |
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protocol. */ |
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static VALUE grpc_rb_call_credentials_init_copy(VALUE copy, VALUE orig) { |
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grpc_rb_call_credentials *orig_cred = NULL; |
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grpc_rb_call_credentials *copy_cred = NULL; |
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if (copy == orig) { |
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return copy; |
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} |
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/* Raise an error if orig is not a credentials object or a subclass. */ |
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if (TYPE(orig) != T_DATA || |
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RDATA(orig)->dfree != (RUBY_DATA_FUNC)grpc_rb_call_credentials_free) { |
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rb_raise(rb_eTypeError, "not a %s", |
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rb_obj_classname(grpc_rb_cCallCredentials)); |
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} |
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TypedData_Get_Struct(orig, grpc_rb_call_credentials, |
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&grpc_rb_call_credentials_data_type, orig_cred); |
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TypedData_Get_Struct(copy, grpc_rb_call_credentials, |
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&grpc_rb_call_credentials_data_type, copy_cred); |
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/* use ruby's MEMCPY to make a byte-for-byte copy of the credentials
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* wrapper object. */ |
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MEMCPY(copy_cred, orig_cred, grpc_rb_call_credentials, 1); |
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return copy; |
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} |
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/* The attribute used on the mark object to hold the callback */ |
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static ID id_callback; |
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/*
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call-seq: |
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creds = Credentials.new auth_proc |
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proc: (required) Proc that generates auth metadata |
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Initializes CallCredential instances. */ |
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static VALUE grpc_rb_call_credentials_init(VALUE self, VALUE proc) { |
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grpc_rb_call_credentials *wrapper = NULL; |
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grpc_call_credentials *creds = NULL; |
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grpc_metadata_credentials_plugin plugin; |
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TypedData_Get_Struct(self, grpc_rb_call_credentials, |
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&grpc_rb_call_credentials_data_type, wrapper); |
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plugin.get_metadata = grpc_rb_call_credentials_plugin_get_metadata; |
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plugin.destroy = grpc_rb_call_credentials_plugin_destroy; |
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plugin.state = (void*)proc; |
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plugin.type = ""; |
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creds = grpc_metadata_credentials_create_from_plugin(plugin, NULL); |
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if (creds == NULL) { |
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rb_raise(rb_eRuntimeError, "could not create a credentials, not sure why"); |
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return Qnil; |
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} |
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wrapper->wrapped = creds; |
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rb_ivar_set(self, id_callback, proc); |
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return self; |
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} |
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static VALUE grpc_rb_call_credentials_compose(int argc, VALUE *argv, |
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VALUE self) { |
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grpc_call_credentials *creds; |
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grpc_call_credentials *other; |
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if (argc == 0) { |
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return self; |
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} |
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creds = grpc_rb_get_wrapped_call_credentials(self); |
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for (int i = 0; i < argc; i++) { |
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other = grpc_rb_get_wrapped_call_credentials(argv[i]); |
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creds = grpc_composite_call_credentials_create(creds, other, NULL); |
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} |
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return grpc_rb_wrap_call_credentials(creds); |
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} |
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void Init_grpc_call_credentials() { |
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grpc_rb_cCallCredentials = |
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rb_define_class_under(grpc_rb_mGrpcCore, "CallCredentials", rb_cObject); |
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/* Allocates an object managed by the ruby runtime */ |
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rb_define_alloc_func(grpc_rb_cCallCredentials, |
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grpc_rb_call_credentials_alloc); |
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/* Provides a ruby constructor and support for dup/clone. */ |
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rb_define_method(grpc_rb_cCallCredentials, "initialize", |
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grpc_rb_call_credentials_init, 1); |
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rb_define_method(grpc_rb_cCallCredentials, "initialize_copy", |
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grpc_rb_call_credentials_init_copy, 1); |
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rb_define_method(grpc_rb_cCallCredentials, "compose", |
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grpc_rb_call_credentials_compose, -1); |
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id_callback = rb_intern("__callback"); |
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} |
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/* Gets the wrapped grpc_call_credentials from the ruby wrapper */ |
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grpc_call_credentials *grpc_rb_get_wrapped_call_credentials(VALUE v) { |
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grpc_rb_call_credentials *wrapper = NULL; |
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TypedData_Get_Struct(v, grpc_rb_call_credentials, |
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&grpc_rb_call_credentials_data_type, |
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wrapper); |
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return wrapper->wrapped; |
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} |
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@ -0,0 +1,46 @@ |
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/*
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* |
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* Copyright 2015, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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#ifndef GRPC_RB_CALL_CREDENTIALS_H_ |
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#define GRPC_RB_CALL_CREDENTIALS_H_ |
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#include <ruby/ruby.h> |
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#include <grpc/grpc_security.h> |
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/* Initializes the ruby CallCredentials class. */ |
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void Init_grpc_call_credentials(); |
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grpc_call_credentials* grpc_rb_get_wrapped_call_credentials(VALUE v); |
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#endif /* GRPC_RB_CALL_CREDENTIALS_H_ */ |
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