Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1 | /* |
| 2 | * |
Craig Tiller | 6169d5f | 2016-03-31 07:46:18 -0700 | [diff] [blame] | 3 | * Copyright 2015, Google Inc. |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 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 | |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 34 | #include "src/core/lib/channel/http_server_filter.h" |
ctiller | d74729d | 2015-01-12 13:31:36 -0800 | [diff] [blame] | 35 | |
Craig Tiller | c50e398 | 2015-01-20 16:30:54 -0800 | [diff] [blame] | 36 | #include <grpc/support/alloc.h> |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 37 | #include <grpc/support/log.h> |
yang-g | d88e1d8 | 2015-12-02 13:23:33 -0800 | [diff] [blame] | 38 | #include <string.h> |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 39 | #include "src/core/lib/profiling/timers.h" |
Craig Tiller | 077da7f | 2016-11-16 14:55:44 -0800 | [diff] [blame] | 40 | #include "src/core/lib/slice/percent_encoding.h" |
Craig Tiller | a59c16c | 2016-10-31 07:25:01 -0700 | [diff] [blame] | 41 | #include "src/core/lib/slice/slice_internal.h" |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 42 | #include "src/core/lib/slice/slice_string_helpers.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 43 | #include "src/core/lib/transport/static_metadata.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 44 | |
Mark D. Roth | 640d71d | 2016-04-27 07:17:58 -0700 | [diff] [blame] | 45 | #define EXPECTED_CONTENT_TYPE "application/grpc" |
| 46 | #define EXPECTED_CONTENT_TYPE_LENGTH sizeof(EXPECTED_CONTENT_TYPE) - 1 |
| 47 | |
Robbie Shade | 3c9728f | 2016-09-27 12:02:03 -0400 | [diff] [blame] | 48 | extern int grpc_http_trace; |
| 49 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 50 | typedef struct call_data { |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 51 | grpc_linked_mdelem status; |
Craig Tiller | cb01417 | 2015-09-08 16:40:26 -0700 | [diff] [blame] | 52 | grpc_linked_mdelem content_type; |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 53 | |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 54 | /* did this request come with payload-bin */ |
| 55 | bool seen_payload_bin; |
Makarand Dharmapurikar | f44946b | 2016-08-29 15:47:43 -0700 | [diff] [blame] | 56 | /* flag to ensure payload_bin is delivered only once */ |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 57 | bool payload_bin_delivered; |
Makarand Dharmapurikar | f44946b | 2016-08-29 15:47:43 -0700 | [diff] [blame] | 58 | |
Craig Tiller | 577c9b2 | 2015-11-02 14:11:15 -0800 | [diff] [blame] | 59 | grpc_metadata_batch *recv_initial_metadata; |
Craig Tiller | 4d40ba3 | 2016-03-09 17:48:40 -0800 | [diff] [blame] | 60 | bool *recv_idempotent_request; |
Makarand Dharmapurikar | d322d4b | 2016-08-29 12:54:19 -0700 | [diff] [blame] | 61 | bool *recv_cacheable_request; |
Craig Tiller | 98bf7e6 | 2015-06-24 08:47:07 -0700 | [diff] [blame] | 62 | /** Closure to call when finished with the hs_on_recv hook */ |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame] | 63 | grpc_closure *on_done_recv; |
Makdharma | 178f4bc | 2016-08-24 15:16:53 -0700 | [diff] [blame] | 64 | /** Closure to call when we retrieve read message from the payload-bin header |
| 65 | */ |
| 66 | grpc_closure *recv_message_ready; |
| 67 | grpc_closure *on_complete; |
| 68 | grpc_byte_stream **pp_recv_message; |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 69 | grpc_slice_buffer read_slice_buffer; |
Makdharma | 178f4bc | 2016-08-24 15:16:53 -0700 | [diff] [blame] | 70 | grpc_slice_buffer_stream read_stream; |
| 71 | |
Craig Tiller | 98bf7e6 | 2015-06-24 08:47:07 -0700 | [diff] [blame] | 72 | /** Receive closures are chained: we inject this closure as the on_done_recv |
| 73 | up-call on transport_op, and remember to call our on_done_recv member |
| 74 | after handling it. */ |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame] | 75 | grpc_closure hs_on_recv; |
Makdharma | 178f4bc | 2016-08-24 15:16:53 -0700 | [diff] [blame] | 76 | grpc_closure hs_on_complete; |
| 77 | grpc_closure hs_recv_message_ready; |
ctiller | d74729d | 2015-01-12 13:31:36 -0800 | [diff] [blame] | 78 | } call_data; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 79 | |
Craig Tiller | 7536af0 | 2015-12-22 13:49:30 -0800 | [diff] [blame] | 80 | typedef struct channel_data { uint8_t unused; } channel_data; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 81 | |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 82 | static grpc_error *server_filter_outgoing_metadata(grpc_exec_ctx *exec_ctx, |
| 83 | grpc_call_element *elem, |
| 84 | grpc_metadata_batch *b) { |
| 85 | if (b->idx.named.grpc_message != NULL) { |
Craig Tiller | 077da7f | 2016-11-16 14:55:44 -0800 | [diff] [blame] | 86 | grpc_slice pct_encoded_msg = grpc_percent_encode_slice( |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 87 | GRPC_MDVALUE(b->idx.named.grpc_message->md), |
| 88 | grpc_compatible_percent_encoding_unreserved_bytes); |
| 89 | if (grpc_slice_is_equivalent(pct_encoded_msg, |
| 90 | GRPC_MDVALUE(b->idx.named.grpc_message->md))) { |
Craig Tiller | c586666 | 2016-11-16 15:25:00 -0800 | [diff] [blame] | 91 | grpc_slice_unref_internal(exec_ctx, pct_encoded_msg); |
Craig Tiller | b121fc7 | 2016-11-03 15:22:59 -0700 | [diff] [blame] | 92 | } else { |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 93 | grpc_metadata_batch_set_value(exec_ctx, b->idx.named.grpc_message, |
| 94 | pct_encoded_msg); |
Craig Tiller | b121fc7 | 2016-11-03 15:22:59 -0700 | [diff] [blame] | 95 | } |
Craig Tiller | b121fc7 | 2016-11-03 15:22:59 -0700 | [diff] [blame] | 96 | } |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 97 | return GRPC_ERROR_NONE; |
Craig Tiller | b121fc7 | 2016-11-03 15:22:59 -0700 | [diff] [blame] | 98 | } |
Craig Tiller | d1bec03 | 2015-09-18 17:29:00 -0700 | [diff] [blame] | 99 | |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 100 | static void add_error(const char *error_name, grpc_error **cumulative, |
| 101 | grpc_error *new) { |
| 102 | if (new == GRPC_ERROR_NONE) return; |
| 103 | if (*cumulative == GRPC_ERROR_NONE) { |
| 104 | *cumulative = GRPC_ERROR_CREATE(error_name); |
| 105 | } |
| 106 | *cumulative = grpc_error_add_child(*cumulative, new); |
| 107 | } |
Craig Tiller | a7d37a3 | 2016-11-22 14:37:16 -0800 | [diff] [blame] | 108 | |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 109 | static grpc_error *server_filter_incoming_metadata(grpc_exec_ctx *exec_ctx, |
| 110 | grpc_call_element *elem, |
| 111 | grpc_metadata_batch *b) { |
| 112 | call_data *calld = elem->call_data; |
| 113 | grpc_error *error = GRPC_ERROR_NONE; |
| 114 | static const char *error_name = "Failed processing incoming headers"; |
| 115 | |
| 116 | if (b->idx.named.method != NULL) { |
| 117 | if (grpc_mdelem_eq(b->idx.named.method->md, GRPC_MDELEM_METHOD_POST)) { |
Craig Tiller | 4d40ba3 | 2016-03-09 17:48:40 -0800 | [diff] [blame] | 118 | *calld->recv_idempotent_request = false; |
Makarand Dharmapurikar | d322d4b | 2016-08-29 12:54:19 -0700 | [diff] [blame] | 119 | *calld->recv_cacheable_request = false; |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 120 | } else if (grpc_mdelem_eq(b->idx.named.method->md, |
| 121 | GRPC_MDELEM_METHOD_PUT)) { |
Craig Tiller | 4d40ba3 | 2016-03-09 17:48:40 -0800 | [diff] [blame] | 122 | *calld->recv_idempotent_request = true; |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 123 | } else if (grpc_mdelem_eq(b->idx.named.method->md, |
| 124 | GRPC_MDELEM_METHOD_GET)) { |
Makarand Dharmapurikar | d322d4b | 2016-08-29 12:54:19 -0700 | [diff] [blame] | 125 | *calld->recv_cacheable_request = true; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 126 | } else { |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 127 | add_error(error_name, &error, |
| 128 | grpc_attach_md_to_error(GRPC_ERROR_CREATE("Bad header"), |
| 129 | b->idx.named.method->md)); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 130 | } |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 131 | grpc_metadata_batch_remove(exec_ctx, b, b->idx.named.method); |
| 132 | } else { |
| 133 | add_error(error_name, &error, |
| 134 | grpc_error_set_str(GRPC_ERROR_CREATE("Missing header"), |
| 135 | GRPC_ERROR_STR_KEY, ":method")); |
| 136 | } |
| 137 | |
| 138 | if (b->idx.named.te != NULL) { |
| 139 | if (!grpc_mdelem_eq(b->idx.named.te->md, GRPC_MDELEM_TE_TRAILERS)) { |
| 140 | add_error(error_name, &error, |
| 141 | grpc_attach_md_to_error(GRPC_ERROR_CREATE("Bad header"), |
| 142 | b->idx.named.te->md)); |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 143 | } |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 144 | grpc_metadata_batch_remove(exec_ctx, b, b->idx.named.te); |
| 145 | } else { |
| 146 | add_error(error_name, &error, |
| 147 | grpc_error_set_str(GRPC_ERROR_CREATE("Missing header"), |
| 148 | GRPC_ERROR_STR_KEY, "te")); |
| 149 | } |
| 150 | |
| 151 | if (b->idx.named.scheme != NULL) { |
| 152 | if (!grpc_mdelem_eq(b->idx.named.scheme->md, GRPC_MDELEM_SCHEME_HTTP) && |
| 153 | !grpc_mdelem_eq(b->idx.named.scheme->md, GRPC_MDELEM_SCHEME_HTTPS) && |
| 154 | !grpc_mdelem_eq(b->idx.named.scheme->md, GRPC_MDELEM_SCHEME_GRPC)) { |
| 155 | add_error(error_name, &error, |
| 156 | grpc_attach_md_to_error(GRPC_ERROR_CREATE("Bad header"), |
| 157 | b->idx.named.scheme->md)); |
| 158 | } |
| 159 | grpc_metadata_batch_remove(exec_ctx, b, b->idx.named.scheme); |
| 160 | } else { |
| 161 | add_error(error_name, &error, |
| 162 | grpc_error_set_str(GRPC_ERROR_CREATE("Missing header"), |
| 163 | GRPC_ERROR_STR_KEY, ":scheme")); |
| 164 | } |
| 165 | |
| 166 | if (b->idx.named.content_type != NULL) { |
| 167 | if (!grpc_mdelem_eq(b->idx.named.content_type->md, |
| 168 | GRPC_MDELEM_CONTENT_TYPE_APPLICATION_SLASH_GRPC)) { |
| 169 | if (grpc_slice_buf_start_eq(GRPC_MDVALUE(b->idx.named.content_type->md), |
| 170 | EXPECTED_CONTENT_TYPE, |
| 171 | EXPECTED_CONTENT_TYPE_LENGTH) && |
| 172 | (GRPC_SLICE_START_PTR(GRPC_MDVALUE( |
| 173 | b->idx.named.content_type->md))[EXPECTED_CONTENT_TYPE_LENGTH] == |
| 174 | '+' || |
| 175 | GRPC_SLICE_START_PTR(GRPC_MDVALUE( |
| 176 | b->idx.named.content_type->md))[EXPECTED_CONTENT_TYPE_LENGTH] == |
| 177 | ';')) { |
| 178 | /* Although the C implementation doesn't (currently) generate them, |
| 179 | any custom +-suffix is explicitly valid. */ |
| 180 | /* TODO(klempner): We should consider preallocating common values such |
| 181 | as +proto or +json, or at least stashing them if we see them. */ |
| 182 | /* TODO(klempner): Should we be surfacing this to application code? */ |
| 183 | } else { |
| 184 | /* TODO(klempner): We're currently allowing this, but we shouldn't |
| 185 | see it without a proxy so log for now. */ |
| 186 | char *val = grpc_dump_slice(GRPC_MDVALUE(b->idx.named.content_type->md), |
| 187 | GPR_DUMP_ASCII); |
| 188 | gpr_log(GPR_INFO, "Unexpected content-type '%s'", val); |
| 189 | gpr_free(val); |
| 190 | } |
| 191 | } |
| 192 | grpc_metadata_batch_remove(exec_ctx, b, b->idx.named.content_type); |
| 193 | } |
| 194 | |
| 195 | if (b->idx.named.path == NULL) { |
| 196 | add_error(error_name, &error, |
| 197 | grpc_error_set_str(GRPC_ERROR_CREATE("Missing header"), |
| 198 | GRPC_ERROR_STR_KEY, ":path")); |
| 199 | } |
| 200 | |
Craig Tiller | 5fcc5af | 2017-02-08 15:22:05 -0800 | [diff] [blame] | 201 | if (b->idx.named.host != NULL && b->idx.named.authority == NULL) { |
Craig Tiller | c15d25a | 2017-02-09 21:22:22 -0800 | [diff] [blame] | 202 | grpc_linked_mdelem *el = b->idx.named.host; |
| 203 | grpc_mdelem md = GRPC_MDELEM_REF(el->md); |
| 204 | grpc_metadata_batch_remove(exec_ctx, b, el); |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 205 | add_error( |
| 206 | error_name, &error, |
Craig Tiller | 5fcc5af | 2017-02-08 15:22:05 -0800 | [diff] [blame] | 207 | grpc_metadata_batch_add_head( |
Craig Tiller | c15d25a | 2017-02-09 21:22:22 -0800 | [diff] [blame] | 208 | exec_ctx, b, el, grpc_mdelem_from_slices( |
| 209 | exec_ctx, GRPC_MDSTR_AUTHORITY, |
| 210 | grpc_slice_ref_internal(GRPC_MDVALUE(md))))); |
| 211 | GRPC_MDELEM_UNREF(exec_ctx, md); |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 212 | } |
| 213 | |
| 214 | if (b->idx.named.authority == NULL) { |
| 215 | add_error(error_name, &error, |
| 216 | grpc_error_set_str(GRPC_ERROR_CREATE("Missing header"), |
| 217 | GRPC_ERROR_STR_KEY, ":authority")); |
| 218 | } |
| 219 | |
| 220 | if (b->idx.named.grpc_payload_bin != NULL) { |
| 221 | calld->seen_payload_bin = true; |
Craig Tiller | d41a4a7 | 2016-10-26 16:16:06 -0700 | [diff] [blame] | 222 | grpc_slice_buffer_add(&calld->read_slice_buffer, |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 223 | grpc_slice_ref_internal( |
| 224 | GRPC_MDVALUE(b->idx.named.grpc_payload_bin->md))); |
Makdharma | 178f4bc | 2016-08-24 15:16:53 -0700 | [diff] [blame] | 225 | grpc_slice_buffer_stream_init(&calld->read_stream, |
| 226 | &calld->read_slice_buffer, 0); |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 227 | grpc_metadata_batch_remove(exec_ctx, b, b->idx.named.grpc_payload_bin); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 228 | } |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 229 | |
| 230 | return error; |
Craig Tiller | ce6e350 | 2015-01-19 18:04:42 -0800 | [diff] [blame] | 231 | } |
| 232 | |
Craig Tiller | c027e77 | 2016-05-03 16:27:00 -0700 | [diff] [blame] | 233 | static void hs_on_recv(grpc_exec_ctx *exec_ctx, void *user_data, |
| 234 | grpc_error *err) { |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 235 | grpc_call_element *elem = user_data; |
| 236 | call_data *calld = elem->call_data; |
Craig Tiller | c027e77 | 2016-05-03 16:27:00 -0700 | [diff] [blame] | 237 | if (err == GRPC_ERROR_NONE) { |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 238 | err = server_filter_incoming_metadata(exec_ctx, elem, |
| 239 | calld->recv_initial_metadata); |
Craig Tiller | 8e5c934 | 2016-05-12 15:34:59 -0700 | [diff] [blame] | 240 | } else { |
| 241 | GRPC_ERROR_REF(err); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 242 | } |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 243 | grpc_closure_run(exec_ctx, calld->on_done_recv, err); |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 244 | } |
| 245 | |
Makdharma | 178f4bc | 2016-08-24 15:16:53 -0700 | [diff] [blame] | 246 | static void hs_on_complete(grpc_exec_ctx *exec_ctx, void *user_data, |
| 247 | grpc_error *err) { |
| 248 | grpc_call_element *elem = user_data; |
| 249 | call_data *calld = elem->call_data; |
| 250 | /* Call recv_message_ready if we got the payload via the header field */ |
| 251 | if (calld->seen_payload_bin && calld->recv_message_ready != NULL) { |
Makarand Dharmapurikar | f44946b | 2016-08-29 15:47:43 -0700 | [diff] [blame] | 252 | *calld->pp_recv_message = calld->payload_bin_delivered |
| 253 | ? NULL |
| 254 | : (grpc_byte_stream *)&calld->read_stream; |
Craig Tiller | 1379287 | 2017-02-23 15:29:55 -0800 | [diff] [blame] | 255 | grpc_closure_run(exec_ctx, calld->recv_message_ready, GRPC_ERROR_REF(err)); |
Makdharma | 178f4bc | 2016-08-24 15:16:53 -0700 | [diff] [blame] | 256 | calld->recv_message_ready = NULL; |
Makarand Dharmapurikar | f44946b | 2016-08-29 15:47:43 -0700 | [diff] [blame] | 257 | calld->payload_bin_delivered = true; |
Makdharma | 178f4bc | 2016-08-24 15:16:53 -0700 | [diff] [blame] | 258 | } |
Craig Tiller | 1379287 | 2017-02-23 15:29:55 -0800 | [diff] [blame] | 259 | grpc_closure_run(exec_ctx, calld->on_complete, GRPC_ERROR_REF(err)); |
Makdharma | 178f4bc | 2016-08-24 15:16:53 -0700 | [diff] [blame] | 260 | } |
| 261 | |
| 262 | static void hs_recv_message_ready(grpc_exec_ctx *exec_ctx, void *user_data, |
| 263 | grpc_error *err) { |
| 264 | grpc_call_element *elem = user_data; |
| 265 | call_data *calld = elem->call_data; |
| 266 | if (calld->seen_payload_bin) { |
| 267 | /* do nothing. This is probably a GET request, and payload will be returned |
| 268 | in hs_on_complete callback. */ |
| 269 | } else { |
Craig Tiller | 1379287 | 2017-02-23 15:29:55 -0800 | [diff] [blame] | 270 | grpc_closure_run(exec_ctx, calld->recv_message_ready, GRPC_ERROR_REF(err)); |
Makdharma | 178f4bc | 2016-08-24 15:16:53 -0700 | [diff] [blame] | 271 | } |
| 272 | } |
| 273 | |
Craig Tiller | b121fc7 | 2016-11-03 15:22:59 -0700 | [diff] [blame] | 274 | static void hs_mutate_op(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 275 | grpc_transport_stream_op *op) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 276 | /* grab pointers to our data from the call element */ |
| 277 | call_data *calld = elem->call_data; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 278 | |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 279 | if (op->send_initial_metadata != NULL) { |
| 280 | grpc_error *error = GRPC_ERROR_NONE; |
| 281 | static const char *error_name = "Failed sending initial metadata"; |
| 282 | add_error(error_name, &error, grpc_metadata_batch_add_head( |
| 283 | exec_ctx, op->send_initial_metadata, |
| 284 | &calld->status, GRPC_MDELEM_STATUS_200)); |
| 285 | add_error(error_name, &error, |
| 286 | grpc_metadata_batch_add_tail( |
| 287 | exec_ctx, op->send_initial_metadata, &calld->content_type, |
| 288 | GRPC_MDELEM_CONTENT_TYPE_APPLICATION_SLASH_GRPC)); |
| 289 | add_error(error_name, &error, |
| 290 | server_filter_outgoing_metadata(exec_ctx, elem, |
| 291 | op->send_initial_metadata)); |
| 292 | if (error != GRPC_ERROR_NONE) { |
| 293 | grpc_transport_stream_op_finish_with_failure(exec_ctx, op, error); |
| 294 | return; |
| 295 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 296 | } |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 297 | |
Craig Tiller | 577c9b2 | 2015-11-02 14:11:15 -0800 | [diff] [blame] | 298 | if (op->recv_initial_metadata) { |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 299 | /* substitute our callback for the higher callback */ |
Craig Tiller | c1b6bdd | 2016-03-10 07:10:38 -0800 | [diff] [blame] | 300 | GPR_ASSERT(op->recv_idempotent_request != NULL); |
Makarand Dharmapurikar | d322d4b | 2016-08-29 12:54:19 -0700 | [diff] [blame] | 301 | GPR_ASSERT(op->recv_cacheable_request != NULL); |
Craig Tiller | 577c9b2 | 2015-11-02 14:11:15 -0800 | [diff] [blame] | 302 | calld->recv_initial_metadata = op->recv_initial_metadata; |
Craig Tiller | c1b6bdd | 2016-03-10 07:10:38 -0800 | [diff] [blame] | 303 | calld->recv_idempotent_request = op->recv_idempotent_request; |
Makarand Dharmapurikar | d322d4b | 2016-08-29 12:54:19 -0700 | [diff] [blame] | 304 | calld->recv_cacheable_request = op->recv_cacheable_request; |
Craig Tiller | a44cbfc | 2016-02-03 16:02:49 -0800 | [diff] [blame] | 305 | calld->on_done_recv = op->recv_initial_metadata_ready; |
| 306 | op->recv_initial_metadata_ready = &calld->hs_on_recv; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 307 | } |
Makdharma | 178f4bc | 2016-08-24 15:16:53 -0700 | [diff] [blame] | 308 | |
| 309 | if (op->recv_message) { |
| 310 | calld->recv_message_ready = op->recv_message_ready; |
| 311 | calld->pp_recv_message = op->recv_message; |
| 312 | if (op->recv_message_ready) { |
| 313 | op->recv_message_ready = &calld->hs_recv_message_ready; |
| 314 | } |
Makdharma | 4e52059 | 2016-08-26 16:01:20 -0700 | [diff] [blame] | 315 | if (op->on_complete) { |
| 316 | calld->on_complete = op->on_complete; |
| 317 | op->on_complete = &calld->hs_on_complete; |
| 318 | } |
Makdharma | 178f4bc | 2016-08-24 15:16:53 -0700 | [diff] [blame] | 319 | } |
Craig Tiller | b121fc7 | 2016-11-03 15:22:59 -0700 | [diff] [blame] | 320 | |
| 321 | if (op->send_trailing_metadata) { |
Craig Tiller | 7c70b6c | 2017-01-23 07:48:42 -0800 | [diff] [blame] | 322 | grpc_error *error = server_filter_outgoing_metadata( |
| 323 | exec_ctx, elem, op->send_trailing_metadata); |
| 324 | if (error != GRPC_ERROR_NONE) { |
| 325 | grpc_transport_stream_op_finish_with_failure(exec_ctx, op, error); |
| 326 | return; |
| 327 | } |
Craig Tiller | b121fc7 | 2016-11-03 15:22:59 -0700 | [diff] [blame] | 328 | } |
Craig Tiller | 50d9db5 | 2015-04-23 10:52:14 -0700 | [diff] [blame] | 329 | } |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 330 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 331 | static void hs_start_transport_op(grpc_exec_ctx *exec_ctx, |
| 332 | grpc_call_element *elem, |
| 333 | grpc_transport_stream_op *op) { |
| 334 | GRPC_CALL_LOG_OP(GPR_INFO, elem, op); |
Craig Tiller | 0ba432d | 2015-10-09 16:57:11 -0700 | [diff] [blame] | 335 | GPR_TIMER_BEGIN("hs_start_transport_op", 0); |
Craig Tiller | b121fc7 | 2016-11-03 15:22:59 -0700 | [diff] [blame] | 336 | hs_mutate_op(exec_ctx, elem, op); |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 337 | grpc_call_next_op(exec_ctx, elem, op); |
Craig Tiller | 0ba432d | 2015-10-09 16:57:11 -0700 | [diff] [blame] | 338 | GPR_TIMER_END("hs_start_transport_op", 0); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 339 | } |
| 340 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 341 | /* Constructor for call_data */ |
Mark D. Roth | 76d2442 | 2016-06-23 13:22:10 -0700 | [diff] [blame] | 342 | static grpc_error *init_call_elem(grpc_exec_ctx *exec_ctx, |
Mark D. Roth | 0badbe8 | 2016-06-23 10:15:12 -0700 | [diff] [blame] | 343 | grpc_call_element *elem, |
Craig Tiller | c52ba3a | 2017-02-15 22:57:43 -0800 | [diff] [blame] | 344 | const grpc_call_element_args *args) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 345 | /* grab pointers to our data from the call element */ |
| 346 | call_data *calld = elem->call_data; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 347 | /* initialize members */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 348 | memset(calld, 0, sizeof(*calld)); |
Craig Tiller | 91031da | 2016-12-28 15:44:25 -0800 | [diff] [blame] | 349 | grpc_closure_init(&calld->hs_on_recv, hs_on_recv, elem, |
| 350 | grpc_schedule_on_exec_ctx); |
| 351 | grpc_closure_init(&calld->hs_on_complete, hs_on_complete, elem, |
| 352 | grpc_schedule_on_exec_ctx); |
| 353 | grpc_closure_init(&calld->hs_recv_message_ready, hs_recv_message_ready, elem, |
| 354 | grpc_schedule_on_exec_ctx); |
Craig Tiller | 328cbcc | 2016-11-08 08:52:22 -0800 | [diff] [blame] | 355 | grpc_slice_buffer_init(&calld->read_slice_buffer); |
Mark D. Roth | 0badbe8 | 2016-06-23 10:15:12 -0700 | [diff] [blame] | 356 | return GRPC_ERROR_NONE; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 357 | } |
| 358 | |
| 359 | /* Destructor for call_data */ |
Craig Tiller | 2c8063c | 2016-03-22 22:12:15 -0700 | [diff] [blame] | 360 | static void destroy_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, |
David Garcia Quintas | 5dde14c | 2016-07-28 17:29:27 -0700 | [diff] [blame] | 361 | const grpc_call_final_info *final_info, |
Craig Tiller | 378856b | 2016-10-31 07:47:08 -0700 | [diff] [blame] | 362 | void *ignored) { |
| 363 | call_data *calld = elem->call_data; |
Craig Tiller | 18b4ba3 | 2016-11-09 15:23:42 -0800 | [diff] [blame] | 364 | grpc_slice_buffer_destroy_internal(exec_ctx, &calld->read_slice_buffer); |
Craig Tiller | 378856b | 2016-10-31 07:47:08 -0700 | [diff] [blame] | 365 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 366 | |
| 367 | /* Constructor for channel_data */ |
Mark D. Roth | c108788 | 2016-11-18 10:54:45 -0800 | [diff] [blame] | 368 | static grpc_error *init_channel_elem(grpc_exec_ctx *exec_ctx, |
Mark D. Roth | 5e2566e | 2016-11-18 10:53:13 -0800 | [diff] [blame] | 369 | grpc_channel_element *elem, |
| 370 | grpc_channel_element_args *args) { |
Craig Tiller | 577c9b2 | 2015-11-02 14:11:15 -0800 | [diff] [blame] | 371 | GPR_ASSERT(!args->is_last); |
Mark D. Roth | 5e2566e | 2016-11-18 10:53:13 -0800 | [diff] [blame] | 372 | return GRPC_ERROR_NONE; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 373 | } |
| 374 | |
| 375 | /* Destructor for channel data */ |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 376 | static void destroy_channel_elem(grpc_exec_ctx *exec_ctx, |
Craig Tiller | ab33b48 | 2015-11-21 08:11:04 -0800 | [diff] [blame] | 377 | grpc_channel_element *elem) {} |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 378 | |
| 379 | const grpc_channel_filter grpc_http_server_filter = { |
Craig Tiller | f40df23 | 2016-03-25 13:38:14 -0700 | [diff] [blame] | 380 | hs_start_transport_op, |
| 381 | grpc_channel_next_op, |
| 382 | sizeof(call_data), |
| 383 | init_call_elem, |
David Garcia Quintas | 4afce7e | 2016-04-18 16:25:17 -0700 | [diff] [blame] | 384 | grpc_call_stack_ignore_set_pollset_or_pollset_set, |
Craig Tiller | f40df23 | 2016-03-25 13:38:14 -0700 | [diff] [blame] | 385 | destroy_call_elem, |
| 386 | sizeof(channel_data), |
| 387 | init_channel_elem, |
| 388 | destroy_channel_elem, |
| 389 | grpc_call_next_get_peer, |
Mark D. Roth | b2d2488 | 2016-10-27 15:44:07 -0700 | [diff] [blame] | 390 | grpc_channel_next_get_info, |
Craig Tiller | f40df23 | 2016-03-25 13:38:14 -0700 | [diff] [blame] | 391 | "http-server"}; |