Mark D. Roth | 4623e1c | 2016-07-18 14:09:18 -0700 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * Copyright 2016, Google Inc. |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions are |
| 8 | * met: |
| 9 | * |
| 10 | * * Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * * Redistributions in binary form must reproduce the above |
| 13 | * copyright notice, this list of conditions and the following disclaimer |
| 14 | * in the documentation and/or other materials provided with the |
| 15 | * distribution. |
| 16 | * * Neither the name of Google Inc. nor the names of its |
| 17 | * contributors may be used to endorse or promote products derived from |
| 18 | * this software without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | * |
| 32 | */ |
| 33 | |
Mark D. Roth | eb35a1d | 2016-10-19 14:53:42 -0700 | [diff] [blame] | 34 | #include "src/core/ext/client_channel/http_connect_handshaker.h" |
Mark D. Roth | 0a05ab6 | 2016-08-04 13:10:13 -0700 | [diff] [blame] | 35 | |
Mark D. Roth | 4623e1c | 2016-07-18 14:09:18 -0700 | [diff] [blame] | 36 | #include <string.h> |
| 37 | |
Craig Tiller | 28b7242 | 2016-10-26 21:15:29 -0700 | [diff] [blame] | 38 | #include <grpc/slice_buffer.h> |
Mark D. Roth | 5c28096 | 2016-09-16 13:23:58 -0700 | [diff] [blame] | 39 | #include <grpc/support/alloc.h> |
| 40 | #include <grpc/support/log.h> |
Mark D. Roth | 77613b2 | 2016-07-22 09:41:10 -0700 | [diff] [blame] | 41 | #include <grpc/support/string_util.h> |
Mark D. Roth | 4623e1c | 2016-07-18 14:09:18 -0700 | [diff] [blame] | 42 | |
Mark D. Roth | eb35a1d | 2016-10-19 14:53:42 -0700 | [diff] [blame] | 43 | #include "src/core/ext/client_channel/uri_parser.h" |
Mark D. Roth | f725019 | 2016-07-22 08:06:09 -0700 | [diff] [blame] | 44 | #include "src/core/lib/http/format_request.h" |
| 45 | #include "src/core/lib/http/parser.h" |
Mark D. Roth | 39b5871 | 2016-09-06 12:50:42 -0700 | [diff] [blame] | 46 | #include "src/core/lib/support/env.h" |
Mark D. Roth | 4623e1c | 2016-07-18 14:09:18 -0700 | [diff] [blame] | 47 | |
| 48 | typedef struct http_connect_handshaker { |
| 49 | // Base class. Must be first. |
| 50 | grpc_handshaker base; |
| 51 | |
Mark D. Roth | 77613b2 | 2016-07-22 09:41:10 -0700 | [diff] [blame] | 52 | char* proxy_server; |
Mark D. Roth | e273b03 | 2016-07-22 13:24:21 -0700 | [diff] [blame] | 53 | char* server_name; |
Mark D. Roth | 77613b2 | 2016-07-22 09:41:10 -0700 | [diff] [blame] | 54 | |
Mark D. Roth | b16c1e3 | 2016-11-14 12:08:13 -0800 | [diff] [blame^] | 55 | gpr_refcount refcount; |
| 56 | gpr_mu mu; |
| 57 | |
Mark D. Roth | 4623e1c | 2016-07-18 14:09:18 -0700 | [diff] [blame] | 58 | // State saved while performing the handshake. |
Mark D. Roth | 27588bb | 2016-11-11 15:03:39 -0800 | [diff] [blame] | 59 | grpc_handshaker_args* args; |
Mark D. Roth | 4b5cdb7 | 2016-11-14 11:37:36 -0800 | [diff] [blame] | 60 | grpc_closure* on_handshake_done; |
Mark D. Roth | 4623e1c | 2016-07-18 14:09:18 -0700 | [diff] [blame] | 61 | |
| 62 | // Objects for processing the HTTP CONNECT request and response. |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 63 | grpc_slice_buffer write_buffer; |
Mark D. Roth | 4623e1c | 2016-07-18 14:09:18 -0700 | [diff] [blame] | 64 | grpc_closure request_done_closure; |
Mark D. Roth | 4623e1c | 2016-07-18 14:09:18 -0700 | [diff] [blame] | 65 | grpc_closure response_read_closure; |
Mark D. Roth | f725019 | 2016-07-22 08:06:09 -0700 | [diff] [blame] | 66 | grpc_http_parser http_parser; |
| 67 | grpc_http_response http_response; |
Mark D. Roth | 4623e1c | 2016-07-18 14:09:18 -0700 | [diff] [blame] | 68 | } http_connect_handshaker; |
| 69 | |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 70 | // Unref and clean up handshaker. |
| 71 | static void http_connect_handshaker_unref(http_connect_handshaker* handshaker) { |
| 72 | if (gpr_unref(&handshaker->refcount)) { |
Mark D. Roth | b16c1e3 | 2016-11-14 12:08:13 -0800 | [diff] [blame^] | 73 | gpr_mu_destroy(&handshaker->mu); |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 74 | gpr_free(handshaker->proxy_server); |
| 75 | gpr_free(handshaker->server_name); |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 76 | grpc_slice_buffer_destroy(&handshaker->write_buffer); |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 77 | grpc_http_parser_destroy(&handshaker->http_parser); |
| 78 | grpc_http_response_destroy(&handshaker->http_response); |
| 79 | gpr_free(handshaker); |
| 80 | } |
| 81 | } |
| 82 | |
Mark D. Roth | 4623e1c | 2016-07-18 14:09:18 -0700 | [diff] [blame] | 83 | // Callback invoked when finished writing HTTP CONNECT request. |
| 84 | static void on_write_done(grpc_exec_ctx* exec_ctx, void* arg, |
| 85 | grpc_error* error) { |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 86 | http_connect_handshaker* handshaker = arg; |
Mark D. Roth | 28ea7e2 | 2016-07-25 11:06:22 -0700 | [diff] [blame] | 87 | if (error != GRPC_ERROR_NONE) { |
| 88 | // If the write failed, invoke the callback immediately with the error. |
Mark D. Roth | b16c1e3 | 2016-11-14 12:08:13 -0800 | [diff] [blame^] | 89 | gpr_mu_lock(&handshaker->mu); |
Mark D. Roth | 4b5cdb7 | 2016-11-14 11:37:36 -0800 | [diff] [blame] | 90 | grpc_exec_ctx_sched(exec_ctx, handshaker->on_handshake_done, |
| 91 | GRPC_ERROR_REF(error), NULL); |
Mark D. Roth | b16c1e3 | 2016-11-14 12:08:13 -0800 | [diff] [blame^] | 92 | handshaker->args = NULL; |
| 93 | gpr_mu_unlock(&handshaker->mu); |
| 94 | http_connect_handshaker_unref(handshaker); |
Mark D. Roth | 28ea7e2 | 2016-07-25 11:06:22 -0700 | [diff] [blame] | 95 | } else { |
| 96 | // Otherwise, read the response. |
Mark D. Roth | b16c1e3 | 2016-11-14 12:08:13 -0800 | [diff] [blame^] | 97 | // The read callback inherits our ref to the handshaker. |
| 98 | gpr_mu_lock(&handshaker->mu); |
| 99 | GPR_ASSERT(handshaker->args != NULL); |
Mark D. Roth | 27588bb | 2016-11-11 15:03:39 -0800 | [diff] [blame] | 100 | grpc_endpoint_read(exec_ctx, handshaker->args->endpoint, |
| 101 | handshaker->args->read_buffer, |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 102 | &handshaker->response_read_closure); |
Mark D. Roth | b16c1e3 | 2016-11-14 12:08:13 -0800 | [diff] [blame^] | 103 | gpr_mu_unlock(&handshaker->mu); |
Mark D. Roth | 28ea7e2 | 2016-07-25 11:06:22 -0700 | [diff] [blame] | 104 | } |
Mark D. Roth | 4623e1c | 2016-07-18 14:09:18 -0700 | [diff] [blame] | 105 | } |
| 106 | |
Mark D. Roth | f725019 | 2016-07-22 08:06:09 -0700 | [diff] [blame] | 107 | // Callback invoked for reading HTTP CONNECT response. |
| 108 | static void on_read_done(grpc_exec_ctx* exec_ctx, void* arg, |
| 109 | grpc_error* error) { |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 110 | http_connect_handshaker* handshaker = arg; |
Mark D. Roth | b16c1e3 | 2016-11-14 12:08:13 -0800 | [diff] [blame^] | 111 | gpr_mu_lock(&handshaker->mu); |
| 112 | GPR_ASSERT(handshaker->args != NULL); |
Mark D. Roth | b954df1 | 2016-08-01 09:53:52 -0700 | [diff] [blame] | 113 | if (error != GRPC_ERROR_NONE) { |
| 114 | GRPC_ERROR_REF(error); // Take ref to pass to the handshake-done callback. |
| 115 | goto done; |
| 116 | } |
| 117 | // Add buffer to parser. |
Mark D. Roth | 27588bb | 2016-11-11 15:03:39 -0800 | [diff] [blame] | 118 | for (size_t i = 0; i < handshaker->args->read_buffer->count; ++i) { |
| 119 | if (GRPC_SLICE_LENGTH(handshaker->args->read_buffer->slices[i]) > 0) { |
Mark D. Roth | 714c7ec | 2016-08-04 12:58:16 -0700 | [diff] [blame] | 120 | size_t body_start_offset = 0; |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 121 | error = grpc_http_parser_parse(&handshaker->http_parser, |
Mark D. Roth | 27588bb | 2016-11-11 15:03:39 -0800 | [diff] [blame] | 122 | handshaker->args->read_buffer->slices[i], |
Mark D. Roth | 0a05ab6 | 2016-08-04 13:10:13 -0700 | [diff] [blame] | 123 | &body_start_offset); |
| 124 | if (error != GRPC_ERROR_NONE) goto done; |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 125 | if (handshaker->http_parser.state == GRPC_HTTP_BODY) { |
Mark D. Roth | 714c7ec | 2016-08-04 12:58:16 -0700 | [diff] [blame] | 126 | // Remove the data we've already read from the read buffer, |
| 127 | // leaving only the leftover bytes (if any). |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 128 | grpc_slice_buffer tmp_buffer; |
| 129 | grpc_slice_buffer_init(&tmp_buffer); |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 130 | if (body_start_offset < |
Mark D. Roth | 27588bb | 2016-11-11 15:03:39 -0800 | [diff] [blame] | 131 | GRPC_SLICE_LENGTH(handshaker->args->read_buffer->slices[i])) { |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 132 | grpc_slice_buffer_add( |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 133 | &tmp_buffer, |
Mark D. Roth | 27588bb | 2016-11-11 15:03:39 -0800 | [diff] [blame] | 134 | grpc_slice_split_tail(&handshaker->args->read_buffer->slices[i], |
Craig Tiller | 28b7242 | 2016-10-26 21:15:29 -0700 | [diff] [blame] | 135 | body_start_offset)); |
Mark D. Roth | 714c7ec | 2016-08-04 12:58:16 -0700 | [diff] [blame] | 136 | } |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 137 | grpc_slice_buffer_addn(&tmp_buffer, |
Mark D. Roth | 27588bb | 2016-11-11 15:03:39 -0800 | [diff] [blame] | 138 | &handshaker->args->read_buffer->slices[i + 1], |
| 139 | handshaker->args->read_buffer->count - i - 1); |
| 140 | grpc_slice_buffer_swap(handshaker->args->read_buffer, &tmp_buffer); |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 141 | grpc_slice_buffer_destroy(&tmp_buffer); |
Mark D. Roth | 714c7ec | 2016-08-04 12:58:16 -0700 | [diff] [blame] | 142 | break; |
| 143 | } |
Mark D. Roth | f725019 | 2016-07-22 08:06:09 -0700 | [diff] [blame] | 144 | } |
Mark D. Roth | b954df1 | 2016-08-01 09:53:52 -0700 | [diff] [blame] | 145 | } |
| 146 | // If we're not done reading the response, read more data. |
| 147 | // TODO(roth): In practice, I suspect that the response to a CONNECT |
| 148 | // request will never include a body, in which case this check is |
| 149 | // sufficient. However, the language of RFC-2817 doesn't explicitly |
| 150 | // forbid the response from including a body. If there is a body, |
| 151 | // it's possible that we might have parsed part but not all of the |
| 152 | // body, in which case this check will cause us to fail to parse the |
| 153 | // remainder of the body. If that ever becomes an issue, we may |
| 154 | // need to fix the HTTP parser to understand when the body is |
| 155 | // complete (e.g., handling chunked transfer encoding or looking |
| 156 | // at the Content-Length: header). |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 157 | if (handshaker->http_parser.state != GRPC_HTTP_BODY) { |
Mark D. Roth | 27588bb | 2016-11-11 15:03:39 -0800 | [diff] [blame] | 158 | grpc_slice_buffer_reset_and_unref(handshaker->args->read_buffer); |
| 159 | grpc_endpoint_read(exec_ctx, handshaker->args->endpoint, |
| 160 | handshaker->args->read_buffer, |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 161 | &handshaker->response_read_closure); |
Mark D. Roth | b16c1e3 | 2016-11-14 12:08:13 -0800 | [diff] [blame^] | 162 | gpr_mu_unlock(&handshaker->mu); |
Mark D. Roth | b954df1 | 2016-08-01 09:53:52 -0700 | [diff] [blame] | 163 | return; |
| 164 | } |
| 165 | // Make sure we got a 2xx response. |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 166 | if (handshaker->http_response.status < 200 || |
| 167 | handshaker->http_response.status >= 300) { |
Mark D. Roth | b954df1 | 2016-08-01 09:53:52 -0700 | [diff] [blame] | 168 | char* msg; |
| 169 | gpr_asprintf(&msg, "HTTP proxy returned response code %d", |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 170 | handshaker->http_response.status); |
Mark D. Roth | b954df1 | 2016-08-01 09:53:52 -0700 | [diff] [blame] | 171 | error = GRPC_ERROR_CREATE(msg); |
| 172 | gpr_free(msg); |
Mark D. Roth | f725019 | 2016-07-22 08:06:09 -0700 | [diff] [blame] | 173 | } |
Mark D. Roth | 0a05ab6 | 2016-08-04 13:10:13 -0700 | [diff] [blame] | 174 | done: |
Mark D. Roth | f725019 | 2016-07-22 08:06:09 -0700 | [diff] [blame] | 175 | // Invoke handshake-done callback. |
Mark D. Roth | b16c1e3 | 2016-11-14 12:08:13 -0800 | [diff] [blame^] | 176 | handshaker->args = NULL; |
Mark D. Roth | 4b5cdb7 | 2016-11-14 11:37:36 -0800 | [diff] [blame] | 177 | grpc_exec_ctx_sched(exec_ctx, handshaker->on_handshake_done, error, NULL); |
Mark D. Roth | b16c1e3 | 2016-11-14 12:08:13 -0800 | [diff] [blame^] | 178 | gpr_mu_unlock(&handshaker->mu); |
| 179 | http_connect_handshaker_unref(handshaker); |
Mark D. Roth | f725019 | 2016-07-22 08:06:09 -0700 | [diff] [blame] | 180 | } |
| 181 | |
Mark D. Roth | 9136bb1 | 2016-07-21 09:52:12 -0700 | [diff] [blame] | 182 | // |
| 183 | // Public handshaker methods |
| 184 | // |
| 185 | |
| 186 | static void http_connect_handshaker_destroy(grpc_exec_ctx* exec_ctx, |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 187 | grpc_handshaker* handshaker_in) { |
| 188 | http_connect_handshaker* handshaker = (http_connect_handshaker*)handshaker_in; |
| 189 | http_connect_handshaker_unref(handshaker); |
Mark D. Roth | 9136bb1 | 2016-07-21 09:52:12 -0700 | [diff] [blame] | 190 | } |
| 191 | |
| 192 | static void http_connect_handshaker_shutdown(grpc_exec_ctx* exec_ctx, |
Mark D. Roth | b16c1e3 | 2016-11-14 12:08:13 -0800 | [diff] [blame^] | 193 | grpc_handshaker* handshaker_in) { |
| 194 | http_connect_handshaker* handshaker = (http_connect_handshaker*)handshaker_in; |
| 195 | gpr_mu_lock(&handshaker->mu); |
| 196 | if (handshaker->args != NULL) { |
| 197 | grpc_endpoint_shutdown(exec_ctx, handshaker->args->endpoint); |
| 198 | handshaker->args = NULL; |
| 199 | } |
| 200 | gpr_mu_unlock(&handshaker->mu); |
| 201 | } |
Mark D. Roth | 9136bb1 | 2016-07-21 09:52:12 -0700 | [diff] [blame] | 202 | |
| 203 | static void http_connect_handshaker_do_handshake( |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 204 | grpc_exec_ctx* exec_ctx, grpc_handshaker* handshaker_in, |
Mark D. Roth | b16c1e3 | 2016-11-14 12:08:13 -0800 | [diff] [blame^] | 205 | grpc_tcp_server_acceptor* acceptor, grpc_closure* on_handshake_done, |
| 206 | grpc_handshaker_args* args) { |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 207 | http_connect_handshaker* handshaker = (http_connect_handshaker*)handshaker_in; |
Mark D. Roth | b16c1e3 | 2016-11-14 12:08:13 -0800 | [diff] [blame^] | 208 | gpr_mu_lock(&handshaker->mu); |
Mark D. Roth | 4623e1c | 2016-07-18 14:09:18 -0700 | [diff] [blame] | 209 | // Save state in the handshaker object. |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 210 | handshaker->args = args; |
Mark D. Roth | 4b5cdb7 | 2016-11-14 11:37:36 -0800 | [diff] [blame] | 211 | handshaker->on_handshake_done = on_handshake_done; |
Mark D. Roth | f725019 | 2016-07-22 08:06:09 -0700 | [diff] [blame] | 212 | // Send HTTP CONNECT request. |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 213 | gpr_log(GPR_INFO, "Connecting to server %s via HTTP proxy %s", |
| 214 | handshaker->server_name, handshaker->proxy_server); |
Mark D. Roth | f725019 | 2016-07-22 08:06:09 -0700 | [diff] [blame] | 215 | grpc_httpcli_request request; |
| 216 | memset(&request, 0, sizeof(request)); |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 217 | request.host = handshaker->proxy_server; |
Mark D. Roth | b954df1 | 2016-08-01 09:53:52 -0700 | [diff] [blame] | 218 | request.http.method = "CONNECT"; |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 219 | request.http.path = handshaker->server_name; |
Mark D. Roth | 77613b2 | 2016-07-22 09:41:10 -0700 | [diff] [blame] | 220 | request.handshaker = &grpc_httpcli_plaintext; |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 221 | grpc_slice request_slice = grpc_httpcli_format_connect_request(&request); |
| 222 | grpc_slice_buffer_add(&handshaker->write_buffer, request_slice); |
Mark D. Roth | b16c1e3 | 2016-11-14 12:08:13 -0800 | [diff] [blame^] | 223 | // Take a new ref to be held by the write callback. |
| 224 | gpr_ref(&handshaker->refcount); |
Mark D. Roth | 27588bb | 2016-11-11 15:03:39 -0800 | [diff] [blame] | 225 | grpc_endpoint_write(exec_ctx, args->endpoint, &handshaker->write_buffer, |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 226 | &handshaker->request_done_closure); |
Mark D. Roth | b16c1e3 | 2016-11-14 12:08:13 -0800 | [diff] [blame^] | 227 | gpr_mu_unlock(&handshaker->mu); |
Mark D. Roth | 4623e1c | 2016-07-18 14:09:18 -0700 | [diff] [blame] | 228 | } |
| 229 | |
Mark D. Roth | 27588bb | 2016-11-11 15:03:39 -0800 | [diff] [blame] | 230 | static const grpc_handshaker_vtable http_connect_handshaker_vtable = { |
Mark D. Roth | 4623e1c | 2016-07-18 14:09:18 -0700 | [diff] [blame] | 231 | http_connect_handshaker_destroy, http_connect_handshaker_shutdown, |
| 232 | http_connect_handshaker_do_handshake}; |
| 233 | |
Mark D. Roth | 28ea7e2 | 2016-07-25 11:06:22 -0700 | [diff] [blame] | 234 | grpc_handshaker* grpc_http_connect_handshaker_create(const char* proxy_server, |
| 235 | const char* server_name) { |
| 236 | GPR_ASSERT(proxy_server != NULL); |
| 237 | GPR_ASSERT(server_name != NULL); |
Mark D. Roth | 27588bb | 2016-11-11 15:03:39 -0800 | [diff] [blame] | 238 | http_connect_handshaker* handshaker = gpr_malloc(sizeof(*handshaker)); |
Mark D. Roth | 4623e1c | 2016-07-18 14:09:18 -0700 | [diff] [blame] | 239 | memset(handshaker, 0, sizeof(*handshaker)); |
Mark D. Roth | 77613b2 | 2016-07-22 09:41:10 -0700 | [diff] [blame] | 240 | grpc_handshaker_init(&http_connect_handshaker_vtable, &handshaker->base); |
Mark D. Roth | b16c1e3 | 2016-11-14 12:08:13 -0800 | [diff] [blame^] | 241 | gpr_mu_init(&handshaker->mu); |
| 242 | gpr_ref_init(&handshaker->refcount, 1); |
Mark D. Roth | 28ea7e2 | 2016-07-25 11:06:22 -0700 | [diff] [blame] | 243 | handshaker->proxy_server = gpr_strdup(proxy_server); |
| 244 | handshaker->server_name = gpr_strdup(server_name); |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 245 | grpc_slice_buffer_init(&handshaker->write_buffer); |
Mark D. Roth | 5b4768f | 2016-08-04 13:41:46 -0700 | [diff] [blame] | 246 | grpc_closure_init(&handshaker->request_done_closure, on_write_done, |
| 247 | handshaker); |
| 248 | grpc_closure_init(&handshaker->response_read_closure, on_read_done, |
| 249 | handshaker); |
| 250 | grpc_http_parser_init(&handshaker->http_parser, GRPC_HTTP_RESPONSE, |
| 251 | &handshaker->http_response); |
Mark D. Roth | a47a246 | 2016-08-11 09:02:30 -0700 | [diff] [blame] | 252 | return &handshaker->base; |
Mark D. Roth | 4623e1c | 2016-07-18 14:09:18 -0700 | [diff] [blame] | 253 | } |
Mark D. Roth | 39b5871 | 2016-09-06 12:50:42 -0700 | [diff] [blame] | 254 | |
| 255 | char* grpc_get_http_proxy_server() { |
| 256 | char* uri_str = gpr_getenv("http_proxy"); |
| 257 | if (uri_str == NULL) return NULL; |
| 258 | grpc_uri* uri = grpc_uri_parse(uri_str, false /* suppress_errors */); |
| 259 | char* proxy_name = NULL; |
| 260 | if (uri == NULL || uri->authority == NULL) { |
| 261 | gpr_log(GPR_ERROR, "cannot parse value of 'http_proxy' env var"); |
| 262 | goto done; |
| 263 | } |
| 264 | if (strcmp(uri->scheme, "http") != 0) { |
| 265 | gpr_log(GPR_ERROR, "'%s' scheme not supported in proxy URI", uri->scheme); |
| 266 | goto done; |
| 267 | } |
| 268 | if (strchr(uri->authority, '@') != NULL) { |
| 269 | gpr_log(GPR_ERROR, "userinfo not supported in proxy URI"); |
| 270 | goto done; |
| 271 | } |
| 272 | proxy_name = gpr_strdup(uri->authority); |
| 273 | done: |
Mark D. Roth | d66a602 | 2016-09-08 16:57:34 +0000 | [diff] [blame] | 274 | gpr_free(uri_str); |
Mark D. Roth | 39b5871 | 2016-09-06 12:50:42 -0700 | [diff] [blame] | 275 | grpc_uri_destroy(uri); |
| 276 | return proxy_name; |
| 277 | } |