Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1 | /* |
| 2 | * |
Craig Tiller | 0605995 | 2015-02-18 08:34:56 -0800 | [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 | |
| 34 | #include "src/core/security/credentials.h" |
| 35 | |
Julien Boeuf | f47a5cb | 2015-02-18 12:24:08 -0800 | [diff] [blame] | 36 | #include <string.h> |
| 37 | #include <stdio.h> |
| 38 | |
| 39 | #include "src/core/json/json.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 40 | #include "src/core/httpcli/httpcli.h" |
ctiller | 18b49ab | 2014-12-09 14:39:16 -0800 | [diff] [blame] | 41 | #include "src/core/iomgr/iomgr.h" |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 42 | #include "src/core/security/json_token.h" |
Craig Tiller | 485d776 | 2015-01-23 12:54:05 -0800 | [diff] [blame] | 43 | #include "src/core/support/string.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 44 | #include <grpc/support/alloc.h> |
| 45 | #include <grpc/support/log.h> |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 46 | #include <grpc/support/sync.h> |
| 47 | #include <grpc/support/time.h> |
| 48 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 49 | /* -- Common. -- */ |
| 50 | |
| 51 | typedef struct { |
| 52 | grpc_credentials *creds; |
| 53 | grpc_credentials_metadata_cb cb; |
| 54 | void *user_data; |
| 55 | } grpc_credentials_metadata_request; |
| 56 | |
| 57 | static grpc_credentials_metadata_request * |
| 58 | grpc_credentials_metadata_request_create(grpc_credentials *creds, |
| 59 | grpc_credentials_metadata_cb cb, |
| 60 | void *user_data) { |
| 61 | grpc_credentials_metadata_request *r = |
| 62 | gpr_malloc(sizeof(grpc_credentials_metadata_request)); |
| 63 | r->creds = grpc_credentials_ref(creds); |
| 64 | r->cb = cb; |
| 65 | r->user_data = user_data; |
| 66 | return r; |
| 67 | } |
| 68 | |
| 69 | static void grpc_credentials_metadata_request_destroy( |
| 70 | grpc_credentials_metadata_request *r) { |
| 71 | grpc_credentials_unref(r->creds); |
| 72 | gpr_free(r); |
| 73 | } |
| 74 | |
| 75 | grpc_credentials *grpc_credentials_ref(grpc_credentials *creds) { |
| 76 | if (creds == NULL) return NULL; |
| 77 | gpr_ref(&creds->refcount); |
| 78 | return creds; |
| 79 | } |
| 80 | |
| 81 | void grpc_credentials_unref(grpc_credentials *creds) { |
| 82 | if (creds == NULL) return; |
| 83 | if (gpr_unref(&creds->refcount)) creds->vtable->destroy(creds); |
| 84 | } |
| 85 | |
| 86 | void grpc_credentials_release(grpc_credentials *creds) { |
| 87 | grpc_credentials_unref(creds); |
| 88 | } |
| 89 | |
| 90 | int grpc_credentials_has_request_metadata(grpc_credentials *creds) { |
| 91 | if (creds == NULL) return 0; |
| 92 | return creds->vtable->has_request_metadata(creds); |
| 93 | } |
| 94 | |
| 95 | int grpc_credentials_has_request_metadata_only(grpc_credentials *creds) { |
| 96 | if (creds == NULL) return 0; |
| 97 | return creds->vtable->has_request_metadata_only(creds); |
| 98 | } |
| 99 | |
| 100 | void grpc_credentials_get_request_metadata(grpc_credentials *creds, |
Julien Boeuf | f47a5cb | 2015-02-18 12:24:08 -0800 | [diff] [blame] | 101 | const char *service_url, |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 102 | grpc_credentials_metadata_cb cb, |
| 103 | void *user_data) { |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 104 | if (creds == NULL || !grpc_credentials_has_request_metadata(creds) || |
| 105 | creds->vtable->get_request_metadata == NULL) { |
| 106 | if (cb != NULL) { |
| 107 | cb(user_data, NULL, 0, GRPC_CREDENTIALS_OK); |
| 108 | } |
| 109 | return; |
| 110 | } |
Julien Boeuf | f47a5cb | 2015-02-18 12:24:08 -0800 | [diff] [blame] | 111 | creds->vtable->get_request_metadata(creds, service_url, cb, user_data); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 112 | } |
| 113 | |
| 114 | void grpc_server_credentials_release(grpc_server_credentials *creds) { |
| 115 | if (creds == NULL) return; |
| 116 | creds->vtable->destroy(creds); |
| 117 | } |
| 118 | |
| 119 | /* -- Ssl credentials. -- */ |
| 120 | |
| 121 | typedef struct { |
| 122 | grpc_credentials base; |
| 123 | grpc_ssl_config config; |
| 124 | } grpc_ssl_credentials; |
| 125 | |
| 126 | typedef struct { |
| 127 | grpc_server_credentials base; |
Julien Boeuf | 8fbcc43 | 2015-01-15 16:44:13 -0800 | [diff] [blame] | 128 | grpc_ssl_server_config config; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 129 | } grpc_ssl_server_credentials; |
| 130 | |
| 131 | static void ssl_destroy(grpc_credentials *creds) { |
| 132 | grpc_ssl_credentials *c = (grpc_ssl_credentials *)creds; |
| 133 | if (c->config.pem_root_certs != NULL) gpr_free(c->config.pem_root_certs); |
| 134 | if (c->config.pem_private_key != NULL) gpr_free(c->config.pem_private_key); |
| 135 | if (c->config.pem_cert_chain != NULL) gpr_free(c->config.pem_cert_chain); |
| 136 | gpr_free(creds); |
| 137 | } |
| 138 | |
| 139 | static void ssl_server_destroy(grpc_server_credentials *creds) { |
| 140 | grpc_ssl_server_credentials *c = (grpc_ssl_server_credentials *)creds; |
Julien Boeuf | 8fbcc43 | 2015-01-15 16:44:13 -0800 | [diff] [blame] | 141 | size_t i; |
| 142 | for (i = 0; i < c->config.num_key_cert_pairs; i++) { |
| 143 | if (c->config.pem_private_keys[i] != NULL) { |
| 144 | gpr_free(c->config.pem_private_keys[i]); |
| 145 | } |
Nicolas Noble | 614c2bf | 2015-01-21 15:48:36 -0800 | [diff] [blame] | 146 | if (c->config.pem_cert_chains[i] != NULL) { |
Julien Boeuf | 8fbcc43 | 2015-01-15 16:44:13 -0800 | [diff] [blame] | 147 | gpr_free(c->config.pem_cert_chains[i]); |
| 148 | } |
| 149 | } |
| 150 | if (c->config.pem_private_keys != NULL) gpr_free(c->config.pem_private_keys); |
| 151 | if (c->config.pem_private_keys_sizes != NULL) { |
| 152 | gpr_free(c->config.pem_private_keys_sizes); |
| 153 | } |
| 154 | if (c->config.pem_cert_chains != NULL) gpr_free(c->config.pem_cert_chains); |
| 155 | if (c->config.pem_cert_chains_sizes != NULL) { |
| 156 | gpr_free(c->config.pem_cert_chains_sizes); |
| 157 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 158 | if (c->config.pem_root_certs != NULL) gpr_free(c->config.pem_root_certs); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 159 | gpr_free(creds); |
| 160 | } |
| 161 | |
Nicolas "Pixel" Noble | 213ed91 | 2015-01-30 02:11:35 +0100 | [diff] [blame] | 162 | static int ssl_has_request_metadata(const grpc_credentials *creds) { |
| 163 | return 0; |
| 164 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 165 | |
| 166 | static int ssl_has_request_metadata_only(const grpc_credentials *creds) { |
| 167 | return 0; |
| 168 | } |
| 169 | |
| 170 | static grpc_credentials_vtable ssl_vtable = { |
| 171 | ssl_destroy, ssl_has_request_metadata, ssl_has_request_metadata_only, NULL}; |
| 172 | |
| 173 | static grpc_server_credentials_vtable ssl_server_vtable = {ssl_server_destroy}; |
| 174 | |
| 175 | const grpc_ssl_config *grpc_ssl_credentials_get_config( |
| 176 | const grpc_credentials *creds) { |
| 177 | if (creds == NULL || strcmp(creds->type, GRPC_CREDENTIALS_TYPE_SSL)) { |
| 178 | return NULL; |
| 179 | } else { |
| 180 | grpc_ssl_credentials *c = (grpc_ssl_credentials *)creds; |
| 181 | return &c->config; |
| 182 | } |
| 183 | } |
| 184 | |
Julien Boeuf | 8fbcc43 | 2015-01-15 16:44:13 -0800 | [diff] [blame] | 185 | const grpc_ssl_server_config *grpc_ssl_server_credentials_get_config( |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 186 | const grpc_server_credentials *creds) { |
| 187 | if (creds == NULL || strcmp(creds->type, GRPC_CREDENTIALS_TYPE_SSL)) { |
| 188 | return NULL; |
| 189 | } else { |
| 190 | grpc_ssl_server_credentials *c = (grpc_ssl_server_credentials *)creds; |
| 191 | return &c->config; |
| 192 | } |
| 193 | } |
| 194 | |
Julien Boeuf | 8fbcc43 | 2015-01-15 16:44:13 -0800 | [diff] [blame] | 195 | static void ssl_copy_key_material(const char *input, unsigned char **output, |
| 196 | size_t *output_size) { |
| 197 | *output_size = strlen(input); |
| 198 | *output = gpr_malloc(*output_size); |
| 199 | memcpy(*output, input, *output_size); |
| 200 | } |
| 201 | |
| 202 | static void ssl_build_config(const char *pem_root_certs, |
| 203 | grpc_ssl_pem_key_cert_pair *pem_key_cert_pair, |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 204 | grpc_ssl_config *config) { |
Julien Boeuf | 026a417 | 2015-02-02 18:36:37 -0800 | [diff] [blame] | 205 | if (pem_root_certs != NULL) { |
Julien Boeuf | 8fbcc43 | 2015-01-15 16:44:13 -0800 | [diff] [blame] | 206 | ssl_copy_key_material(pem_root_certs, &config->pem_root_certs, |
| 207 | &config->pem_root_certs_size); |
| 208 | } |
Julien Boeuf | 8fbcc43 | 2015-01-15 16:44:13 -0800 | [diff] [blame] | 209 | if (pem_key_cert_pair != NULL) { |
| 210 | GPR_ASSERT(pem_key_cert_pair->private_key != NULL); |
| 211 | GPR_ASSERT(pem_key_cert_pair->cert_chain != NULL); |
| 212 | ssl_copy_key_material(pem_key_cert_pair->private_key, |
| 213 | &config->pem_private_key, |
| 214 | &config->pem_private_key_size); |
| 215 | ssl_copy_key_material(pem_key_cert_pair->cert_chain, |
| 216 | &config->pem_cert_chain, |
| 217 | &config->pem_cert_chain_size); |
| 218 | } |
| 219 | } |
| 220 | |
| 221 | static void ssl_build_server_config( |
| 222 | const char *pem_root_certs, grpc_ssl_pem_key_cert_pair *pem_key_cert_pairs, |
| 223 | size_t num_key_cert_pairs, grpc_ssl_server_config *config) { |
| 224 | size_t i; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 225 | if (pem_root_certs != NULL) { |
Julien Boeuf | 8fbcc43 | 2015-01-15 16:44:13 -0800 | [diff] [blame] | 226 | ssl_copy_key_material(pem_root_certs, &config->pem_root_certs, |
| 227 | &config->pem_root_certs_size); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 228 | } |
Julien Boeuf | 8fbcc43 | 2015-01-15 16:44:13 -0800 | [diff] [blame] | 229 | if (num_key_cert_pairs > 0) { |
| 230 | GPR_ASSERT(pem_key_cert_pairs != NULL); |
| 231 | config->pem_private_keys = |
| 232 | gpr_malloc(num_key_cert_pairs * sizeof(unsigned char *)); |
| 233 | config->pem_cert_chains = |
| 234 | gpr_malloc(num_key_cert_pairs * sizeof(unsigned char *)); |
| 235 | config->pem_private_keys_sizes = |
| 236 | gpr_malloc(num_key_cert_pairs * sizeof(size_t)); |
| 237 | config->pem_cert_chains_sizes = |
| 238 | gpr_malloc(num_key_cert_pairs * sizeof(size_t)); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 239 | } |
Julien Boeuf | 8fbcc43 | 2015-01-15 16:44:13 -0800 | [diff] [blame] | 240 | config->num_key_cert_pairs = num_key_cert_pairs; |
| 241 | for (i = 0; i < num_key_cert_pairs; i++) { |
| 242 | GPR_ASSERT(pem_key_cert_pairs[i].private_key != NULL); |
| 243 | GPR_ASSERT(pem_key_cert_pairs[i].cert_chain != NULL); |
| 244 | ssl_copy_key_material(pem_key_cert_pairs[i].private_key, |
| 245 | &config->pem_private_keys[i], |
| 246 | &config->pem_private_keys_sizes[i]); |
| 247 | ssl_copy_key_material(pem_key_cert_pairs[i].cert_chain, |
| 248 | &config->pem_cert_chains[i], |
| 249 | &config->pem_cert_chains_sizes[i]); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 250 | } |
| 251 | } |
| 252 | |
| 253 | grpc_credentials *grpc_ssl_credentials_create( |
Julien Boeuf | 8fbcc43 | 2015-01-15 16:44:13 -0800 | [diff] [blame] | 254 | const char *pem_root_certs, grpc_ssl_pem_key_cert_pair *pem_key_cert_pair) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 255 | grpc_ssl_credentials *c = gpr_malloc(sizeof(grpc_ssl_credentials)); |
| 256 | memset(c, 0, sizeof(grpc_ssl_credentials)); |
| 257 | c->base.type = GRPC_CREDENTIALS_TYPE_SSL; |
| 258 | c->base.vtable = &ssl_vtable; |
| 259 | gpr_ref_init(&c->base.refcount, 1); |
Julien Boeuf | 8fbcc43 | 2015-01-15 16:44:13 -0800 | [diff] [blame] | 260 | ssl_build_config(pem_root_certs, pem_key_cert_pair, &c->config); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 261 | return &c->base; |
| 262 | } |
| 263 | |
| 264 | grpc_server_credentials *grpc_ssl_server_credentials_create( |
Julien Boeuf | 8fbcc43 | 2015-01-15 16:44:13 -0800 | [diff] [blame] | 265 | const char *pem_root_certs, grpc_ssl_pem_key_cert_pair *pem_key_cert_pairs, |
| 266 | size_t num_key_cert_pairs) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 267 | grpc_ssl_server_credentials *c = |
| 268 | gpr_malloc(sizeof(grpc_ssl_server_credentials)); |
| 269 | memset(c, 0, sizeof(grpc_ssl_server_credentials)); |
| 270 | c->base.type = GRPC_CREDENTIALS_TYPE_SSL; |
| 271 | c->base.vtable = &ssl_server_vtable; |
Julien Boeuf | 8fbcc43 | 2015-01-15 16:44:13 -0800 | [diff] [blame] | 272 | ssl_build_server_config(pem_root_certs, pem_key_cert_pairs, |
| 273 | num_key_cert_pairs, &c->config); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 274 | return &c->base; |
| 275 | } |
| 276 | |
Julien Boeuf | f47a5cb | 2015-02-18 12:24:08 -0800 | [diff] [blame] | 277 | /* -- Jwt credentials -- */ |
| 278 | |
| 279 | typedef struct { |
| 280 | grpc_credentials base; |
| 281 | grpc_mdctx *md_ctx; |
| 282 | |
| 283 | /* Have a simple cache for now with just 1 entry. We could have a map based on |
| 284 | the service_url for a more sophisticated one. */ |
| 285 | gpr_mu cache_mu; |
| 286 | struct { |
| 287 | grpc_mdelem *jwt_md; |
| 288 | char *service_url; |
| 289 | gpr_timespec jwt_expiration; |
| 290 | } cached; |
| 291 | |
| 292 | grpc_auth_json_key key; |
| 293 | gpr_timespec jwt_lifetime; |
| 294 | } grpc_jwt_credentials; |
| 295 | |
| 296 | static void jwt_reset_cache(grpc_jwt_credentials *c) { |
| 297 | if (c->cached.jwt_md != NULL) { |
| 298 | grpc_mdelem_unref(c->cached.jwt_md); |
| 299 | c->cached.jwt_md = NULL; |
| 300 | } |
| 301 | if (c->cached.service_url != NULL) { |
| 302 | gpr_free(c->cached.service_url); |
| 303 | c->cached.service_url = NULL; |
| 304 | } |
| 305 | c->cached.jwt_expiration = gpr_inf_past; |
| 306 | } |
| 307 | |
| 308 | static void jwt_destroy(grpc_credentials *creds) { |
| 309 | grpc_jwt_credentials *c = (grpc_jwt_credentials *)creds; |
| 310 | grpc_auth_json_key_destruct(&c->key); |
| 311 | jwt_reset_cache(c); |
| 312 | gpr_mu_destroy(&c->cache_mu); |
| 313 | grpc_mdctx_unref(c->md_ctx); |
| 314 | gpr_free(c); |
| 315 | } |
| 316 | |
| 317 | static int jwt_has_request_metadata(const grpc_credentials *creds) { return 1; } |
| 318 | |
| 319 | static int jwt_has_request_metadata_only(const grpc_credentials *creds) { |
| 320 | return 1; |
| 321 | } |
| 322 | |
| 323 | |
| 324 | static void jwt_get_request_metadata(grpc_credentials *creds, |
| 325 | const char *service_url, |
| 326 | grpc_credentials_metadata_cb cb, |
| 327 | void *user_data) { |
| 328 | grpc_jwt_credentials *c = (grpc_jwt_credentials *)creds; |
| 329 | gpr_timespec refresh_threshold = {GRPC_SECURE_TOKEN_REFRESH_THRESHOLD_SECS, |
| 330 | 0}; |
| 331 | |
| 332 | /* See if we can return a cached jwt. */ |
| 333 | grpc_mdelem *jwt_md = NULL; |
| 334 | { |
| 335 | gpr_mu_lock(&c->cache_mu); |
| 336 | if (c->cached.service_url != NULL && |
Ronnie Sahlberg | 2ad8d21 | 2015-03-07 08:39:22 -0800 | [diff] [blame] | 337 | strcmp(c->cached.service_url, service_url) == 0 && |
Julien Boeuf | f47a5cb | 2015-02-18 12:24:08 -0800 | [diff] [blame] | 338 | c->cached.jwt_md != NULL && |
| 339 | (gpr_time_cmp(gpr_time_sub(c->cached.jwt_expiration, gpr_now()), |
| 340 | refresh_threshold) > 0)) { |
| 341 | jwt_md = grpc_mdelem_ref(c->cached.jwt_md); |
| 342 | } |
| 343 | gpr_mu_unlock(&c->cache_mu); |
| 344 | } |
| 345 | |
| 346 | if (jwt_md == NULL) { |
| 347 | char *jwt = NULL; |
| 348 | /* Generate a new jwt. */ |
| 349 | gpr_mu_lock(&c->cache_mu); |
| 350 | jwt_reset_cache(c); |
| 351 | jwt = grpc_jwt_encode_and_sign(&c->key, service_url, c->jwt_lifetime, NULL); |
| 352 | if (jwt != NULL) { |
| 353 | char *md_value; |
| 354 | gpr_asprintf(&md_value, "Bearer %s", jwt); |
| 355 | gpr_free(jwt); |
| 356 | c->cached.jwt_expiration = gpr_time_add(gpr_now(), c->jwt_lifetime); |
| 357 | c->cached.service_url = gpr_strdup(service_url); |
| 358 | c->cached.jwt_md = grpc_mdelem_from_strings( |
| 359 | c->md_ctx, GRPC_AUTHORIZATION_METADATA_KEY, md_value); |
| 360 | gpr_free(md_value); |
| 361 | jwt_md = grpc_mdelem_ref(c->cached.jwt_md); |
| 362 | } |
| 363 | gpr_mu_unlock(&c->cache_mu); |
| 364 | } |
| 365 | |
| 366 | if (jwt_md != NULL) { |
| 367 | cb(user_data, &jwt_md, 1, GRPC_CREDENTIALS_OK); |
| 368 | grpc_mdelem_unref(jwt_md); |
| 369 | } else { |
| 370 | cb(user_data, NULL, 0, GRPC_CREDENTIALS_ERROR); |
| 371 | } |
| 372 | } |
| 373 | |
| 374 | static grpc_credentials_vtable jwt_vtable = { |
| 375 | jwt_destroy, jwt_has_request_metadata, jwt_has_request_metadata_only, |
| 376 | jwt_get_request_metadata}; |
| 377 | |
| 378 | grpc_credentials *grpc_jwt_credentials_create(const char *json_key, |
| 379 | gpr_timespec token_lifetime) { |
| 380 | grpc_jwt_credentials *c; |
| 381 | grpc_auth_json_key key = grpc_auth_json_key_create_from_string(json_key); |
| 382 | if (!grpc_auth_json_key_is_valid(&key)) { |
| 383 | gpr_log(GPR_ERROR, "Invalid input for jwt credentials creation"); |
| 384 | return NULL; |
| 385 | } |
| 386 | c = gpr_malloc(sizeof(grpc_jwt_credentials)); |
| 387 | memset(c, 0, sizeof(grpc_jwt_credentials)); |
| 388 | c->base.type = GRPC_CREDENTIALS_TYPE_JWT; |
| 389 | gpr_ref_init(&c->base.refcount, 1); |
| 390 | c->base.vtable = &jwt_vtable; |
| 391 | c->md_ctx = grpc_mdctx_create(); |
| 392 | c->key = key; |
| 393 | c->jwt_lifetime = token_lifetime; |
| 394 | gpr_mu_init(&c->cache_mu); |
| 395 | jwt_reset_cache(c); |
| 396 | return &c->base; |
| 397 | } |
| 398 | |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 399 | /* -- Oauth2TokenFetcher credentials -- */ |
| 400 | |
| 401 | /* This object is a base for credentials that need to acquire an oauth2 token |
| 402 | from an http service. */ |
| 403 | |
| 404 | typedef void (*grpc_fetch_oauth2_func)(grpc_credentials_metadata_request *req, |
| 405 | grpc_httpcli_response_cb response_cb, |
| 406 | gpr_timespec deadline); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 407 | |
| 408 | typedef struct { |
| 409 | grpc_credentials base; |
| 410 | gpr_mu mu; |
| 411 | grpc_mdctx *md_ctx; |
| 412 | grpc_mdelem *access_token_md; |
| 413 | gpr_timespec token_expiration; |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 414 | grpc_fetch_oauth2_func fetch_func; |
| 415 | } grpc_oauth2_token_fetcher_credentials; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 416 | |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 417 | static void oauth2_token_fetcher_destroy(grpc_credentials *creds) { |
| 418 | grpc_oauth2_token_fetcher_credentials *c = |
| 419 | (grpc_oauth2_token_fetcher_credentials *)creds; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 420 | if (c->access_token_md != NULL) { |
| 421 | grpc_mdelem_unref(c->access_token_md); |
| 422 | } |
| 423 | gpr_mu_destroy(&c->mu); |
Craig Tiller | 9be83ee | 2015-02-18 14:16:15 -0800 | [diff] [blame] | 424 | grpc_mdctx_unref(c->md_ctx); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 425 | gpr_free(c); |
| 426 | } |
| 427 | |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 428 | static int oauth2_token_fetcher_has_request_metadata( |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 429 | const grpc_credentials *creds) { |
| 430 | return 1; |
| 431 | } |
| 432 | |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 433 | static int oauth2_token_fetcher_has_request_metadata_only( |
| 434 | const grpc_credentials *creds) { |
| 435 | return 1; |
| 436 | } |
| 437 | |
| 438 | grpc_credentials_status |
| 439 | grpc_oauth2_token_fetcher_credentials_parse_server_response( |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 440 | const grpc_httpcli_response *response, grpc_mdctx *ctx, |
| 441 | grpc_mdelem **token_elem, gpr_timespec *token_lifetime) { |
| 442 | char *null_terminated_body = NULL; |
| 443 | char *new_access_token = NULL; |
| 444 | grpc_credentials_status status = GRPC_CREDENTIALS_OK; |
Nicolas Noble | 614c2bf | 2015-01-21 15:48:36 -0800 | [diff] [blame] | 445 | grpc_json *json = NULL; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 446 | |
Julien Boeuf | 90bd7c4 | 2015-02-18 18:51:16 -0800 | [diff] [blame] | 447 | if (response == NULL) { |
| 448 | gpr_log(GPR_ERROR, "Received NULL response."); |
| 449 | status = GRPC_CREDENTIALS_ERROR; |
| 450 | goto end; |
| 451 | } |
| 452 | |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 453 | if (response->body_length > 0) { |
| 454 | null_terminated_body = gpr_malloc(response->body_length + 1); |
| 455 | null_terminated_body[response->body_length] = '\0'; |
| 456 | memcpy(null_terminated_body, response->body, response->body_length); |
| 457 | } |
| 458 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 459 | if (response->status != 200) { |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 460 | gpr_log(GPR_ERROR, "Call to http server ended with error %d [%s].", |
| 461 | response->status, |
| 462 | null_terminated_body != NULL ? null_terminated_body : ""); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 463 | status = GRPC_CREDENTIALS_ERROR; |
| 464 | goto end; |
| 465 | } else { |
Nicolas Noble | 614c2bf | 2015-01-21 15:48:36 -0800 | [diff] [blame] | 466 | grpc_json *access_token = NULL; |
| 467 | grpc_json *token_type = NULL; |
| 468 | grpc_json *expires_in = NULL; |
| 469 | grpc_json *ptr; |
Nicolas Noble | 614c2bf | 2015-01-21 15:48:36 -0800 | [diff] [blame] | 470 | json = grpc_json_parse_string(null_terminated_body); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 471 | if (json == NULL) { |
| 472 | gpr_log(GPR_ERROR, "Could not parse JSON from %s", null_terminated_body); |
| 473 | status = GRPC_CREDENTIALS_ERROR; |
| 474 | goto end; |
| 475 | } |
Nicolas Noble | 614c2bf | 2015-01-21 15:48:36 -0800 | [diff] [blame] | 476 | if (json->type != GRPC_JSON_OBJECT) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 477 | gpr_log(GPR_ERROR, "Response should be a JSON object"); |
| 478 | status = GRPC_CREDENTIALS_ERROR; |
| 479 | goto end; |
| 480 | } |
Nicolas Noble | 614c2bf | 2015-01-21 15:48:36 -0800 | [diff] [blame] | 481 | for (ptr = json->child; ptr; ptr = ptr->next) { |
| 482 | if (strcmp(ptr->key, "access_token") == 0) { |
| 483 | access_token = ptr; |
| 484 | } else if (strcmp(ptr->key, "token_type") == 0) { |
| 485 | token_type = ptr; |
| 486 | } else if (strcmp(ptr->key, "expires_in") == 0) { |
| 487 | expires_in = ptr; |
| 488 | } |
| 489 | } |
| 490 | if (access_token == NULL || access_token->type != GRPC_JSON_STRING) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 491 | gpr_log(GPR_ERROR, "Missing or invalid access_token in JSON."); |
| 492 | status = GRPC_CREDENTIALS_ERROR; |
| 493 | goto end; |
| 494 | } |
Nicolas Noble | 614c2bf | 2015-01-21 15:48:36 -0800 | [diff] [blame] | 495 | if (token_type == NULL || token_type->type != GRPC_JSON_STRING) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 496 | gpr_log(GPR_ERROR, "Missing or invalid token_type in JSON."); |
| 497 | status = GRPC_CREDENTIALS_ERROR; |
| 498 | goto end; |
| 499 | } |
Nicolas Noble | 614c2bf | 2015-01-21 15:48:36 -0800 | [diff] [blame] | 500 | if (expires_in == NULL || expires_in->type != GRPC_JSON_NUMBER) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 501 | gpr_log(GPR_ERROR, "Missing or invalid expires_in in JSON."); |
| 502 | status = GRPC_CREDENTIALS_ERROR; |
| 503 | goto end; |
| 504 | } |
Nicolas Noble | fee065c | 2015-01-26 11:41:12 -0800 | [diff] [blame] | 505 | gpr_asprintf(&new_access_token, "%s %s", token_type->value, |
| 506 | access_token->value); |
Nicolas Noble | e04455a | 2015-01-26 17:01:29 -0800 | [diff] [blame] | 507 | token_lifetime->tv_sec = strtol(expires_in->value, NULL, 10); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 508 | token_lifetime->tv_nsec = 0; |
| 509 | if (*token_elem != NULL) grpc_mdelem_unref(*token_elem); |
| 510 | *token_elem = grpc_mdelem_from_strings(ctx, GRPC_AUTHORIZATION_METADATA_KEY, |
| 511 | new_access_token); |
| 512 | status = GRPC_CREDENTIALS_OK; |
| 513 | } |
| 514 | |
| 515 | end: |
| 516 | if (status != GRPC_CREDENTIALS_OK && (*token_elem != NULL)) { |
| 517 | grpc_mdelem_unref(*token_elem); |
| 518 | *token_elem = NULL; |
| 519 | } |
| 520 | if (null_terminated_body != NULL) gpr_free(null_terminated_body); |
| 521 | if (new_access_token != NULL) gpr_free(new_access_token); |
Nicolas Noble | 8c2be9b | 2015-01-27 14:21:18 -0800 | [diff] [blame] | 522 | if (json != NULL) grpc_json_destroy(json); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 523 | return status; |
| 524 | } |
| 525 | |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 526 | static void on_oauth2_token_fetcher_http_response( |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 527 | void *user_data, const grpc_httpcli_response *response) { |
| 528 | grpc_credentials_metadata_request *r = |
| 529 | (grpc_credentials_metadata_request *)user_data; |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 530 | grpc_oauth2_token_fetcher_credentials *c = |
| 531 | (grpc_oauth2_token_fetcher_credentials *)r->creds; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 532 | gpr_timespec token_lifetime; |
| 533 | grpc_credentials_status status; |
| 534 | |
| 535 | gpr_mu_lock(&c->mu); |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 536 | status = grpc_oauth2_token_fetcher_credentials_parse_server_response( |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 537 | response, c->md_ctx, &c->access_token_md, &token_lifetime); |
| 538 | if (status == GRPC_CREDENTIALS_OK) { |
| 539 | c->token_expiration = gpr_time_add(gpr_now(), token_lifetime); |
| 540 | r->cb(r->user_data, &c->access_token_md, 1, status); |
| 541 | } else { |
| 542 | c->token_expiration = gpr_inf_past; |
| 543 | r->cb(r->user_data, NULL, 0, status); |
| 544 | } |
| 545 | gpr_mu_unlock(&c->mu); |
| 546 | grpc_credentials_metadata_request_destroy(r); |
| 547 | } |
| 548 | |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 549 | static void oauth2_token_fetcher_get_request_metadata( |
Julien Boeuf | f47a5cb | 2015-02-18 12:24:08 -0800 | [diff] [blame] | 550 | grpc_credentials *creds, const char *service_url, |
| 551 | grpc_credentials_metadata_cb cb, void *user_data) { |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 552 | grpc_oauth2_token_fetcher_credentials *c = |
| 553 | (grpc_oauth2_token_fetcher_credentials *)creds; |
Julien Boeuf | f47a5cb | 2015-02-18 12:24:08 -0800 | [diff] [blame] | 554 | gpr_timespec refresh_threshold = {GRPC_SECURE_TOKEN_REFRESH_THRESHOLD_SECS, |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 555 | 0}; |
| 556 | grpc_mdelem *cached_access_token_md = NULL; |
| 557 | { |
| 558 | gpr_mu_lock(&c->mu); |
| 559 | if (c->access_token_md != NULL && |
| 560 | (gpr_time_cmp(gpr_time_sub(c->token_expiration, gpr_now()), |
| 561 | refresh_threshold) > 0)) { |
| 562 | cached_access_token_md = grpc_mdelem_ref(c->access_token_md); |
| 563 | } |
| 564 | gpr_mu_unlock(&c->mu); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 565 | } |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 566 | if (cached_access_token_md != NULL) { |
| 567 | cb(user_data, &cached_access_token_md, 1, GRPC_CREDENTIALS_OK); |
| 568 | grpc_mdelem_unref(cached_access_token_md); |
| 569 | } else { |
| 570 | c->fetch_func( |
| 571 | grpc_credentials_metadata_request_create(creds, cb, user_data), |
| 572 | on_oauth2_token_fetcher_http_response, |
| 573 | gpr_time_add(gpr_now(), refresh_threshold)); |
| 574 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 575 | } |
| 576 | |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 577 | static void init_oauth2_token_fetcher(grpc_oauth2_token_fetcher_credentials *c, |
| 578 | grpc_fetch_oauth2_func fetch_func) { |
| 579 | memset(c, 0, sizeof(grpc_oauth2_token_fetcher_credentials)); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 580 | c->base.type = GRPC_CREDENTIALS_TYPE_OAUTH2; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 581 | gpr_ref_init(&c->base.refcount, 1); |
| 582 | gpr_mu_init(&c->mu); |
| 583 | c->md_ctx = grpc_mdctx_create(); |
| 584 | c->token_expiration = gpr_inf_past; |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 585 | c->fetch_func = fetch_func; |
| 586 | } |
| 587 | |
| 588 | /* -- ComputeEngine credentials. -- */ |
| 589 | |
| 590 | static grpc_credentials_vtable compute_engine_vtable = { |
| 591 | oauth2_token_fetcher_destroy, oauth2_token_fetcher_has_request_metadata, |
| 592 | oauth2_token_fetcher_has_request_metadata_only, |
| 593 | oauth2_token_fetcher_get_request_metadata}; |
| 594 | |
| 595 | static void compute_engine_fetch_oauth2( |
| 596 | grpc_credentials_metadata_request *metadata_req, |
| 597 | grpc_httpcli_response_cb response_cb, gpr_timespec deadline) { |
| 598 | grpc_httpcli_header header = {"Metadata-Flavor", "Google"}; |
| 599 | grpc_httpcli_request request; |
| 600 | memset(&request, 0, sizeof(grpc_httpcli_request)); |
| 601 | request.host = GRPC_COMPUTE_ENGINE_METADATA_HOST; |
| 602 | request.path = GRPC_COMPUTE_ENGINE_METADATA_TOKEN_PATH; |
| 603 | request.hdr_count = 1; |
| 604 | request.hdrs = &header; |
| 605 | grpc_httpcli_get(&request, deadline, response_cb, metadata_req); |
| 606 | } |
| 607 | |
| 608 | grpc_credentials *grpc_compute_engine_credentials_create(void) { |
| 609 | grpc_oauth2_token_fetcher_credentials *c = |
| 610 | gpr_malloc(sizeof(grpc_oauth2_token_fetcher_credentials)); |
| 611 | init_oauth2_token_fetcher(c, compute_engine_fetch_oauth2); |
| 612 | c->base.vtable = &compute_engine_vtable; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 613 | return &c->base; |
| 614 | } |
| 615 | |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 616 | /* -- ServiceAccount credentials. -- */ |
| 617 | |
| 618 | typedef struct { |
| 619 | grpc_oauth2_token_fetcher_credentials base; |
| 620 | grpc_auth_json_key key; |
| 621 | char *scope; |
| 622 | gpr_timespec token_lifetime; |
| 623 | } grpc_service_account_credentials; |
| 624 | |
| 625 | static void service_account_destroy(grpc_credentials *creds) { |
| 626 | grpc_service_account_credentials *c = |
| 627 | (grpc_service_account_credentials *)creds; |
| 628 | if (c->scope != NULL) gpr_free(c->scope); |
| 629 | grpc_auth_json_key_destruct(&c->key); |
| 630 | oauth2_token_fetcher_destroy(&c->base.base); |
| 631 | } |
| 632 | |
| 633 | static grpc_credentials_vtable service_account_vtable = { |
| 634 | service_account_destroy, oauth2_token_fetcher_has_request_metadata, |
| 635 | oauth2_token_fetcher_has_request_metadata_only, |
| 636 | oauth2_token_fetcher_get_request_metadata}; |
| 637 | |
| 638 | static void service_account_fetch_oauth2( |
| 639 | grpc_credentials_metadata_request *metadata_req, |
| 640 | grpc_httpcli_response_cb response_cb, gpr_timespec deadline) { |
| 641 | grpc_service_account_credentials *c = |
| 642 | (grpc_service_account_credentials *)metadata_req->creds; |
| 643 | grpc_httpcli_header header = {"Content-Type", |
| 644 | "application/x-www-form-urlencoded"}; |
| 645 | grpc_httpcli_request request; |
| 646 | char *body = NULL; |
Julien Boeuf | f47a5cb | 2015-02-18 12:24:08 -0800 | [diff] [blame] | 647 | char *jwt = grpc_jwt_encode_and_sign(&c->key, GRPC_JWT_OAUTH2_AUDIENCE, |
| 648 | c->token_lifetime, c->scope); |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 649 | if (jwt == NULL) { |
| 650 | grpc_httpcli_response response; |
| 651 | memset(&response, 0, sizeof(grpc_httpcli_response)); |
| 652 | response.status = 400; /* Invalid request. */ |
| 653 | gpr_log(GPR_ERROR, "Could not create signed jwt."); |
| 654 | /* Do not even send the request, just call the response callback. */ |
| 655 | response_cb(metadata_req, &response); |
| 656 | return; |
| 657 | } |
Craig Tiller | be6a355 | 2015-01-23 13:04:45 -0800 | [diff] [blame] | 658 | gpr_asprintf(&body, "%s%s", GRPC_SERVICE_ACCOUNT_POST_BODY_PREFIX, jwt); |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 659 | memset(&request, 0, sizeof(grpc_httpcli_request)); |
Julien Boeuf | 9835cf0 | 2015-03-09 16:56:44 -0700 | [diff] [blame^] | 660 | request.host = GRPC_GOOGLE_OAUTH2_SERVICE_HOST; |
| 661 | request.path = GRPC_GOOGLE_OAUTH2_SERVICE_TOKEN_PATH; |
jboeuf | 1a809c0 | 2014-12-19 15:44:30 -0800 | [diff] [blame] | 662 | request.hdr_count = 1; |
| 663 | request.hdrs = &header; |
| 664 | request.use_ssl = 1; |
| 665 | grpc_httpcli_post(&request, body, strlen(body), deadline, response_cb, |
| 666 | metadata_req); |
| 667 | gpr_free(body); |
| 668 | gpr_free(jwt); |
| 669 | } |
| 670 | |
| 671 | grpc_credentials *grpc_service_account_credentials_create( |
| 672 | const char *json_key, const char *scope, gpr_timespec token_lifetime) { |
| 673 | grpc_service_account_credentials *c; |
| 674 | grpc_auth_json_key key = grpc_auth_json_key_create_from_string(json_key); |
| 675 | |
| 676 | if (scope == NULL || (strlen(scope) == 0) || |
| 677 | !grpc_auth_json_key_is_valid(&key)) { |
| 678 | gpr_log(GPR_ERROR, |
| 679 | "Invalid input for service account credentials creation"); |
| 680 | return NULL; |
| 681 | } |
| 682 | c = gpr_malloc(sizeof(grpc_service_account_credentials)); |
| 683 | memset(c, 0, sizeof(grpc_service_account_credentials)); |
| 684 | init_oauth2_token_fetcher(&c->base, service_account_fetch_oauth2); |
| 685 | c->base.base.vtable = &service_account_vtable; |
| 686 | c->scope = gpr_strdup(scope); |
| 687 | c->key = key; |
| 688 | c->token_lifetime = token_lifetime; |
| 689 | return &c->base.base; |
| 690 | } |
| 691 | |
Julien Boeuf | 9835cf0 | 2015-03-09 16:56:44 -0700 | [diff] [blame^] | 692 | /* -- RefreshToken credentials. -- */ |
| 693 | |
| 694 | typedef struct { |
| 695 | grpc_oauth2_token_fetcher_credentials base; |
| 696 | grpc_auth_refresh_token refresh_token; |
| 697 | } grpc_refresh_token_credentials; |
| 698 | |
| 699 | static void refresh_token_destroy(grpc_credentials *creds) { |
| 700 | grpc_refresh_token_credentials *c = |
| 701 | (grpc_refresh_token_credentials *)creds; |
| 702 | grpc_auth_refresh_token_destruct(&c->refresh_token); |
| 703 | oauth2_token_fetcher_destroy(&c->base.base); |
| 704 | } |
| 705 | |
| 706 | static grpc_credentials_vtable refresh_token_vtable = { |
| 707 | refresh_token_destroy, oauth2_token_fetcher_has_request_metadata, |
| 708 | oauth2_token_fetcher_has_request_metadata_only, |
| 709 | oauth2_token_fetcher_get_request_metadata}; |
| 710 | |
| 711 | static void refresh_token_fetch_oauth2( |
| 712 | grpc_credentials_metadata_request *metadata_req, |
| 713 | grpc_httpcli_response_cb response_cb, gpr_timespec deadline) { |
| 714 | grpc_refresh_token_credentials *c = |
| 715 | (grpc_refresh_token_credentials *)metadata_req->creds; |
| 716 | grpc_httpcli_header header = {"Content-Type", |
| 717 | "application/x-www-form-urlencoded"}; |
| 718 | grpc_httpcli_request request; |
| 719 | char *body = NULL; |
| 720 | gpr_asprintf(&body, GRPC_REFRESH_TOKEN_POST_BODY_FORMAT_STRING, |
| 721 | c->refresh_token.client_id, c->refresh_token.client_secret, |
| 722 | c->refresh_token.refresh_token); |
| 723 | memset(&request, 0, sizeof(grpc_httpcli_request)); |
| 724 | request.host = GRPC_GOOGLE_OAUTH2_SERVICE_HOST; |
| 725 | request.path = GRPC_GOOGLE_OAUTH2_SERVICE_TOKEN_PATH; |
| 726 | request.hdr_count = 1; |
| 727 | request.hdrs = &header; |
| 728 | request.use_ssl = 1; |
| 729 | grpc_httpcli_post(&request, body, strlen(body), deadline, response_cb, |
| 730 | metadata_req); |
| 731 | gpr_free(body); |
| 732 | } |
| 733 | |
| 734 | grpc_credentials *grpc_refresh_token_credentials_create( |
| 735 | const char *json_refresh_token) { |
| 736 | grpc_refresh_token_credentials *c; |
| 737 | grpc_auth_refresh_token refresh_token = |
| 738 | grpc_auth_refresh_token_create_from_string(json_refresh_token); |
| 739 | |
| 740 | if (!grpc_auth_refresh_token_is_valid(&refresh_token)) { |
| 741 | gpr_log(GPR_ERROR, |
| 742 | "Invalid input for refresh token credentials creation"); |
| 743 | return NULL; |
| 744 | } |
| 745 | c = gpr_malloc(sizeof(grpc_refresh_token_credentials)); |
| 746 | memset(c, 0, sizeof(grpc_refresh_token_credentials)); |
| 747 | init_oauth2_token_fetcher(&c->base, refresh_token_fetch_oauth2); |
| 748 | c->base.base.vtable = &refresh_token_vtable; |
| 749 | c->refresh_token = refresh_token; |
| 750 | return &c->base.base; |
| 751 | } |
| 752 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 753 | /* -- Fake Oauth2 credentials. -- */ |
| 754 | |
| 755 | typedef struct { |
| 756 | grpc_credentials base; |
| 757 | grpc_mdctx *md_ctx; |
| 758 | grpc_mdelem *access_token_md; |
| 759 | int is_async; |
| 760 | } grpc_fake_oauth2_credentials; |
| 761 | |
| 762 | static void fake_oauth2_destroy(grpc_credentials *creds) { |
| 763 | grpc_fake_oauth2_credentials *c = (grpc_fake_oauth2_credentials *)creds; |
| 764 | if (c->access_token_md != NULL) { |
| 765 | grpc_mdelem_unref(c->access_token_md); |
| 766 | } |
Craig Tiller | 9be83ee | 2015-02-18 14:16:15 -0800 | [diff] [blame] | 767 | grpc_mdctx_unref(c->md_ctx); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 768 | gpr_free(c); |
| 769 | } |
| 770 | |
| 771 | static int fake_oauth2_has_request_metadata(const grpc_credentials *creds) { |
| 772 | return 1; |
| 773 | } |
| 774 | |
| 775 | static int fake_oauth2_has_request_metadata_only( |
| 776 | const grpc_credentials *creds) { |
| 777 | return 1; |
| 778 | } |
| 779 | |
ctiller | 58393c2 | 2015-01-07 14:03:30 -0800 | [diff] [blame] | 780 | void on_simulated_token_fetch_done(void *user_data, int success) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 781 | grpc_credentials_metadata_request *r = |
| 782 | (grpc_credentials_metadata_request *)user_data; |
| 783 | grpc_fake_oauth2_credentials *c = (grpc_fake_oauth2_credentials *)r->creds; |
ctiller | 58393c2 | 2015-01-07 14:03:30 -0800 | [diff] [blame] | 784 | GPR_ASSERT(success); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 785 | r->cb(r->user_data, &c->access_token_md, 1, GRPC_CREDENTIALS_OK); |
| 786 | grpc_credentials_metadata_request_destroy(r); |
| 787 | } |
| 788 | |
| 789 | static void fake_oauth2_get_request_metadata(grpc_credentials *creds, |
Julien Boeuf | f47a5cb | 2015-02-18 12:24:08 -0800 | [diff] [blame] | 790 | const char *service_url, |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 791 | grpc_credentials_metadata_cb cb, |
| 792 | void *user_data) { |
| 793 | grpc_fake_oauth2_credentials *c = (grpc_fake_oauth2_credentials *)creds; |
| 794 | |
| 795 | if (c->is_async) { |
ctiller | 18b49ab | 2014-12-09 14:39:16 -0800 | [diff] [blame] | 796 | grpc_iomgr_add_callback( |
| 797 | on_simulated_token_fetch_done, |
| 798 | grpc_credentials_metadata_request_create(creds, cb, user_data)); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 799 | } else { |
| 800 | cb(user_data, &c->access_token_md, 1, GRPC_CREDENTIALS_OK); |
| 801 | } |
| 802 | } |
| 803 | |
| 804 | static grpc_credentials_vtable fake_oauth2_vtable = { |
| 805 | fake_oauth2_destroy, fake_oauth2_has_request_metadata, |
| 806 | fake_oauth2_has_request_metadata_only, fake_oauth2_get_request_metadata}; |
| 807 | |
| 808 | grpc_credentials *grpc_fake_oauth2_credentials_create( |
| 809 | const char *token_md_value, int is_async) { |
| 810 | grpc_fake_oauth2_credentials *c = |
| 811 | gpr_malloc(sizeof(grpc_fake_oauth2_credentials)); |
| 812 | memset(c, 0, sizeof(grpc_fake_oauth2_credentials)); |
| 813 | c->base.type = GRPC_CREDENTIALS_TYPE_OAUTH2; |
| 814 | c->base.vtable = &fake_oauth2_vtable; |
| 815 | gpr_ref_init(&c->base.refcount, 1); |
| 816 | c->md_ctx = grpc_mdctx_create(); |
| 817 | c->access_token_md = grpc_mdelem_from_strings( |
| 818 | c->md_ctx, GRPC_AUTHORIZATION_METADATA_KEY, token_md_value); |
| 819 | c->is_async = is_async; |
| 820 | return &c->base; |
| 821 | } |
| 822 | |
| 823 | /* -- Fake transport security credentials. -- */ |
| 824 | |
| 825 | static void fake_transport_security_credentials_destroy( |
| 826 | grpc_credentials *creds) { |
| 827 | gpr_free(creds); |
| 828 | } |
| 829 | |
| 830 | static void fake_transport_security_server_credentials_destroy( |
| 831 | grpc_server_credentials *creds) { |
| 832 | gpr_free(creds); |
| 833 | } |
| 834 | |
| 835 | static int fake_transport_security_has_request_metadata( |
| 836 | const grpc_credentials *creds) { |
| 837 | return 0; |
| 838 | } |
| 839 | |
| 840 | static int fake_transport_security_has_request_metadata_only( |
| 841 | const grpc_credentials *creds) { |
| 842 | return 0; |
| 843 | } |
| 844 | |
| 845 | static grpc_credentials_vtable fake_transport_security_credentials_vtable = { |
| 846 | fake_transport_security_credentials_destroy, |
| 847 | fake_transport_security_has_request_metadata, |
| 848 | fake_transport_security_has_request_metadata_only, NULL}; |
| 849 | |
| 850 | static grpc_server_credentials_vtable |
| 851 | fake_transport_security_server_credentials_vtable = { |
| 852 | fake_transport_security_server_credentials_destroy}; |
| 853 | |
| 854 | grpc_credentials *grpc_fake_transport_security_credentials_create(void) { |
| 855 | grpc_credentials *c = gpr_malloc(sizeof(grpc_credentials)); |
| 856 | memset(c, 0, sizeof(grpc_credentials)); |
| 857 | c->type = GRPC_CREDENTIALS_TYPE_FAKE_TRANSPORT_SECURITY; |
| 858 | c->vtable = &fake_transport_security_credentials_vtable; |
| 859 | gpr_ref_init(&c->refcount, 1); |
| 860 | return c; |
| 861 | } |
| 862 | |
Craig Tiller | 3eef2c4 | 2015-01-15 11:37:54 -0800 | [diff] [blame] | 863 | grpc_server_credentials *grpc_fake_transport_security_server_credentials_create( |
| 864 | void) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 865 | grpc_server_credentials *c = gpr_malloc(sizeof(grpc_server_credentials)); |
| 866 | memset(c, 0, sizeof(grpc_server_credentials)); |
| 867 | c->type = GRPC_CREDENTIALS_TYPE_FAKE_TRANSPORT_SECURITY; |
| 868 | c->vtable = &fake_transport_security_server_credentials_vtable; |
| 869 | return c; |
| 870 | } |
| 871 | |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 872 | /* -- Composite credentials. -- */ |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 873 | |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 874 | typedef struct { |
| 875 | grpc_credentials base; |
| 876 | grpc_credentials_array inner; |
| 877 | } grpc_composite_credentials; |
| 878 | |
| 879 | typedef struct { |
| 880 | grpc_composite_credentials *composite_creds; |
| 881 | size_t creds_index; |
| 882 | grpc_mdelem **md_elems; |
| 883 | size_t num_md; |
Julien Boeuf | f47a5cb | 2015-02-18 12:24:08 -0800 | [diff] [blame] | 884 | char *service_url; |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 885 | void *user_data; |
| 886 | grpc_credentials_metadata_cb cb; |
| 887 | } grpc_composite_credentials_metadata_context; |
| 888 | |
| 889 | static void composite_destroy(grpc_credentials *creds) { |
| 890 | grpc_composite_credentials *c = (grpc_composite_credentials *)creds; |
| 891 | size_t i; |
| 892 | for (i = 0; i < c->inner.num_creds; i++) { |
| 893 | grpc_credentials_unref(c->inner.creds_array[i]); |
| 894 | } |
| 895 | gpr_free(c->inner.creds_array); |
| 896 | gpr_free(creds); |
| 897 | } |
| 898 | |
| 899 | static int composite_has_request_metadata(const grpc_credentials *creds) { |
| 900 | const grpc_composite_credentials *c = |
| 901 | (const grpc_composite_credentials *)creds; |
| 902 | size_t i; |
| 903 | for (i = 0; i < c->inner.num_creds; i++) { |
| 904 | if (grpc_credentials_has_request_metadata(c->inner.creds_array[i])) { |
| 905 | return 1; |
| 906 | } |
| 907 | } |
| 908 | return 0; |
| 909 | } |
| 910 | |
| 911 | static int composite_has_request_metadata_only(const grpc_credentials *creds) { |
| 912 | const grpc_composite_credentials *c = |
| 913 | (const grpc_composite_credentials *)creds; |
| 914 | size_t i; |
| 915 | for (i = 0; i < c->inner.num_creds; i++) { |
| 916 | if (!grpc_credentials_has_request_metadata_only(c->inner.creds_array[i])) { |
| 917 | return 0; |
| 918 | } |
| 919 | } |
| 920 | return 1; |
| 921 | } |
| 922 | |
| 923 | static void composite_md_context_destroy( |
| 924 | grpc_composite_credentials_metadata_context *ctx) { |
| 925 | size_t i; |
| 926 | for (i = 0; i < ctx->num_md; i++) { |
| 927 | grpc_mdelem_unref(ctx->md_elems[i]); |
| 928 | } |
| 929 | gpr_free(ctx->md_elems); |
Julien Boeuf | f47a5cb | 2015-02-18 12:24:08 -0800 | [diff] [blame] | 930 | if (ctx->service_url != NULL) gpr_free(ctx->service_url); |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 931 | gpr_free(ctx); |
| 932 | } |
| 933 | |
| 934 | static void composite_metadata_cb(void *user_data, grpc_mdelem **md_elems, |
| 935 | size_t num_md, |
| 936 | grpc_credentials_status status) { |
| 937 | grpc_composite_credentials_metadata_context *ctx = |
| 938 | (grpc_composite_credentials_metadata_context *)user_data; |
| 939 | size_t i; |
| 940 | if (status != GRPC_CREDENTIALS_OK) { |
| 941 | ctx->cb(ctx->user_data, NULL, 0, status); |
| 942 | return; |
| 943 | } |
| 944 | |
| 945 | /* Copy the metadata in the context. */ |
| 946 | if (num_md > 0) { |
| 947 | ctx->md_elems = gpr_realloc(ctx->md_elems, |
| 948 | (ctx->num_md + num_md) * sizeof(grpc_mdelem *)); |
| 949 | for (i = 0; i < num_md; i++) { |
| 950 | ctx->md_elems[i + ctx->num_md] = grpc_mdelem_ref(md_elems[i]); |
| 951 | } |
| 952 | ctx->num_md += num_md; |
| 953 | } |
| 954 | |
| 955 | /* See if we need to get some more metadata. */ |
| 956 | while (ctx->creds_index < ctx->composite_creds->inner.num_creds) { |
| 957 | grpc_credentials *inner_creds = |
| 958 | ctx->composite_creds->inner.creds_array[ctx->creds_index++]; |
| 959 | if (grpc_credentials_has_request_metadata(inner_creds)) { |
Julien Boeuf | f47a5cb | 2015-02-18 12:24:08 -0800 | [diff] [blame] | 960 | grpc_credentials_get_request_metadata(inner_creds, ctx->service_url, |
| 961 | composite_metadata_cb, ctx); |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 962 | return; |
| 963 | } |
| 964 | } |
| 965 | |
| 966 | /* We're done!. */ |
| 967 | ctx->cb(ctx->user_data, ctx->md_elems, ctx->num_md, GRPC_CREDENTIALS_OK); |
| 968 | composite_md_context_destroy(ctx); |
| 969 | } |
| 970 | |
| 971 | static void composite_get_request_metadata(grpc_credentials *creds, |
Julien Boeuf | f47a5cb | 2015-02-18 12:24:08 -0800 | [diff] [blame] | 972 | const char *service_url, |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 973 | grpc_credentials_metadata_cb cb, |
| 974 | void *user_data) { |
| 975 | grpc_composite_credentials *c = (grpc_composite_credentials *)creds; |
| 976 | grpc_composite_credentials_metadata_context *ctx; |
| 977 | if (!grpc_credentials_has_request_metadata(creds)) { |
| 978 | cb(user_data, NULL, 0, GRPC_CREDENTIALS_OK); |
| 979 | return; |
| 980 | } |
| 981 | ctx = gpr_malloc(sizeof(grpc_composite_credentials_metadata_context)); |
| 982 | memset(ctx, 0, sizeof(grpc_composite_credentials_metadata_context)); |
Julien Boeuf | f47a5cb | 2015-02-18 12:24:08 -0800 | [diff] [blame] | 983 | ctx->service_url = gpr_strdup(service_url); |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 984 | ctx->user_data = user_data; |
| 985 | ctx->cb = cb; |
| 986 | ctx->composite_creds = c; |
| 987 | while (ctx->creds_index < c->inner.num_creds) { |
| 988 | grpc_credentials *inner_creds = c->inner.creds_array[ctx->creds_index++]; |
| 989 | if (grpc_credentials_has_request_metadata(inner_creds)) { |
Julien Boeuf | f47a5cb | 2015-02-18 12:24:08 -0800 | [diff] [blame] | 990 | grpc_credentials_get_request_metadata(inner_creds, service_url, |
| 991 | composite_metadata_cb, ctx); |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 992 | return; |
| 993 | } |
| 994 | } |
| 995 | GPR_ASSERT(0); /* Should have exited before. */ |
| 996 | } |
| 997 | |
| 998 | static grpc_credentials_vtable composite_credentials_vtable = { |
| 999 | composite_destroy, composite_has_request_metadata, |
| 1000 | composite_has_request_metadata_only, composite_get_request_metadata}; |
| 1001 | |
| 1002 | static grpc_credentials_array get_creds_array(grpc_credentials **creds_addr) { |
| 1003 | grpc_credentials_array result; |
| 1004 | grpc_credentials *creds = *creds_addr; |
| 1005 | result.creds_array = creds_addr; |
| 1006 | result.num_creds = 1; |
Ronnie Sahlberg | 2ad8d21 | 2015-03-07 08:39:22 -0800 | [diff] [blame] | 1007 | if (strcmp(creds->type, GRPC_CREDENTIALS_TYPE_COMPOSITE) == 0) { |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 1008 | result = *grpc_composite_credentials_get_credentials(creds); |
| 1009 | } |
| 1010 | return result; |
| 1011 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1012 | |
| 1013 | grpc_credentials *grpc_composite_credentials_create(grpc_credentials *creds1, |
| 1014 | grpc_credentials *creds2) { |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 1015 | size_t i; |
| 1016 | grpc_credentials_array creds1_array; |
| 1017 | grpc_credentials_array creds2_array; |
| 1018 | grpc_composite_credentials *c; |
| 1019 | GPR_ASSERT(creds1 != NULL); |
| 1020 | GPR_ASSERT(creds2 != NULL); |
| 1021 | c = gpr_malloc(sizeof(grpc_composite_credentials)); |
| 1022 | memset(c, 0, sizeof(grpc_composite_credentials)); |
| 1023 | c->base.type = GRPC_CREDENTIALS_TYPE_COMPOSITE; |
| 1024 | c->base.vtable = &composite_credentials_vtable; |
| 1025 | gpr_ref_init(&c->base.refcount, 1); |
| 1026 | creds1_array = get_creds_array(&creds1); |
| 1027 | creds2_array = get_creds_array(&creds2); |
| 1028 | c->inner.num_creds = creds1_array.num_creds + creds2_array.num_creds; |
| 1029 | c->inner.creds_array = |
| 1030 | gpr_malloc(c->inner.num_creds * sizeof(grpc_credentials *)); |
| 1031 | for (i = 0; i < creds1_array.num_creds; i++) { |
| 1032 | c->inner.creds_array[i] = grpc_credentials_ref(creds1_array.creds_array[i]); |
| 1033 | } |
| 1034 | for (i = 0; i < creds2_array.num_creds; i++) { |
| 1035 | c->inner.creds_array[i + creds1_array.num_creds] = |
| 1036 | grpc_credentials_ref(creds2_array.creds_array[i]); |
| 1037 | } |
| 1038 | return &c->base; |
| 1039 | } |
| 1040 | |
| 1041 | const grpc_credentials_array *grpc_composite_credentials_get_credentials( |
| 1042 | grpc_credentials *creds) { |
| 1043 | const grpc_composite_credentials *c = |
| 1044 | (const grpc_composite_credentials *)creds; |
Ronnie Sahlberg | 2ad8d21 | 2015-03-07 08:39:22 -0800 | [diff] [blame] | 1045 | GPR_ASSERT(strcmp(creds->type, GRPC_CREDENTIALS_TYPE_COMPOSITE) == 0); |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 1046 | return &c->inner; |
| 1047 | } |
| 1048 | |
jboeuf | 6ad120e | 2015-01-12 17:08:15 -0800 | [diff] [blame] | 1049 | grpc_credentials *grpc_credentials_contains_type( |
| 1050 | grpc_credentials *creds, const char *type, |
| 1051 | grpc_credentials **composite_creds) { |
| 1052 | size_t i; |
Ronnie Sahlberg | 2ad8d21 | 2015-03-07 08:39:22 -0800 | [diff] [blame] | 1053 | if (strcmp(creds->type, type) == 0) { |
jboeuf | 6ad120e | 2015-01-12 17:08:15 -0800 | [diff] [blame] | 1054 | if (composite_creds != NULL) *composite_creds = NULL; |
| 1055 | return creds; |
Ronnie Sahlberg | 2ad8d21 | 2015-03-07 08:39:22 -0800 | [diff] [blame] | 1056 | } else if (strcmp(creds->type, GRPC_CREDENTIALS_TYPE_COMPOSITE) == 0) { |
jboeuf | 6ad120e | 2015-01-12 17:08:15 -0800 | [diff] [blame] | 1057 | const grpc_credentials_array *inner_creds_array = |
| 1058 | grpc_composite_credentials_get_credentials(creds); |
| 1059 | for (i = 0; i < inner_creds_array->num_creds; i++) { |
Ronnie Sahlberg | 2ad8d21 | 2015-03-07 08:39:22 -0800 | [diff] [blame] | 1060 | if (strcmp(type, inner_creds_array->creds_array[i]->type) == 0) { |
jboeuf | 6ad120e | 2015-01-12 17:08:15 -0800 | [diff] [blame] | 1061 | if (composite_creds != NULL) *composite_creds = creds; |
| 1062 | return inner_creds_array->creds_array[i]; |
| 1063 | } |
| 1064 | } |
| 1065 | } |
| 1066 | return NULL; |
| 1067 | } |
| 1068 | |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 1069 | /* -- IAM credentials. -- */ |
| 1070 | |
| 1071 | typedef struct { |
| 1072 | grpc_credentials base; |
| 1073 | grpc_mdctx *md_ctx; |
| 1074 | grpc_mdelem *token_md; |
| 1075 | grpc_mdelem *authority_selector_md; |
| 1076 | } grpc_iam_credentials; |
| 1077 | |
| 1078 | static void iam_destroy(grpc_credentials *creds) { |
| 1079 | grpc_iam_credentials *c = (grpc_iam_credentials *)creds; |
| 1080 | grpc_mdelem_unref(c->token_md); |
| 1081 | grpc_mdelem_unref(c->authority_selector_md); |
Craig Tiller | 9be83ee | 2015-02-18 14:16:15 -0800 | [diff] [blame] | 1082 | grpc_mdctx_unref(c->md_ctx); |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 1083 | gpr_free(c); |
| 1084 | } |
| 1085 | |
Nicolas "Pixel" Noble | 213ed91 | 2015-01-30 02:11:35 +0100 | [diff] [blame] | 1086 | static int iam_has_request_metadata(const grpc_credentials *creds) { |
| 1087 | return 1; |
| 1088 | } |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 1089 | |
| 1090 | static int iam_has_request_metadata_only(const grpc_credentials *creds) { |
| 1091 | return 1; |
| 1092 | } |
| 1093 | |
| 1094 | static void iam_get_request_metadata(grpc_credentials *creds, |
Julien Boeuf | f47a5cb | 2015-02-18 12:24:08 -0800 | [diff] [blame] | 1095 | const char *service_url, |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 1096 | grpc_credentials_metadata_cb cb, |
| 1097 | void *user_data) { |
| 1098 | grpc_iam_credentials *c = (grpc_iam_credentials *)creds; |
| 1099 | grpc_mdelem *md_array[2]; |
| 1100 | md_array[0] = c->token_md; |
| 1101 | md_array[1] = c->authority_selector_md; |
| 1102 | cb(user_data, md_array, 2, GRPC_CREDENTIALS_OK); |
| 1103 | } |
| 1104 | |
| 1105 | static grpc_credentials_vtable iam_vtable = { |
| 1106 | iam_destroy, iam_has_request_metadata, iam_has_request_metadata_only, |
| 1107 | iam_get_request_metadata}; |
| 1108 | |
| 1109 | grpc_credentials *grpc_iam_credentials_create(const char *token, |
| 1110 | const char *authority_selector) { |
| 1111 | grpc_iam_credentials *c; |
| 1112 | GPR_ASSERT(token != NULL); |
| 1113 | GPR_ASSERT(authority_selector != NULL); |
| 1114 | c = gpr_malloc(sizeof(grpc_iam_credentials)); |
| 1115 | memset(c, 0, sizeof(grpc_iam_credentials)); |
| 1116 | c->base.type = GRPC_CREDENTIALS_TYPE_IAM; |
| 1117 | c->base.vtable = &iam_vtable; |
| 1118 | gpr_ref_init(&c->base.refcount, 1); |
| 1119 | c->md_ctx = grpc_mdctx_create(); |
| 1120 | c->token_md = grpc_mdelem_from_strings( |
| 1121 | c->md_ctx, GRPC_IAM_AUTHORIZATION_TOKEN_METADATA_KEY, token); |
| 1122 | c->authority_selector_md = grpc_mdelem_from_strings( |
| 1123 | c->md_ctx, GRPC_IAM_AUTHORITY_SELECTOR_METADATA_KEY, authority_selector); |
| 1124 | return &c->base; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1125 | } |