Mercurial > hg > nginx
annotate src/http/modules/ngx_http_map_module.c @ 7746:88eca63261c3
gRPC: RST_STREAM(NO_ERROR) handling after "trailer only" responses.
Similarly to the problem fixed in 2096b21fcd10 (ticket #1792),
when a "trailer only" gRPC response (that is, a response with the
END_STREAM flag in the HEADERS frame) was immediately followed by
RST_STREAM(NO_ERROR) in the data preread along with the response
header, RST_STREAM wasn't properly skipped and caused "upstream
rejected request with error 0" errors.
Observed with "unknown service" gRPC errors returned by grpc-go.
Fix is to set ctx->done if we are going to parse additional data,
so the RST_STREAM(NO_ERROR) is properly skipped. Additionally, now
ngx_http_grpc_filter() will complain about frames sent for closed
stream if there are any.
| author | Pavel Pautov <p.pautov@f5.com> |
|---|---|
| date | Wed, 18 Nov 2020 18:41:16 -0800 |
| parents | ec10ce307dc0 |
| children |
| rev | line source |
|---|---|
| 589 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4412 | 4 * Copyright (C) Nginx, Inc. |
| 589 | 5 */ |
| 6 | |
| 7 | |
| 8 #include <ngx_config.h> | |
| 9 #include <ngx_core.h> | |
| 10 #include <ngx_http.h> | |
| 11 | |
| 12 | |
| 13 typedef struct { | |
| 14 ngx_uint_t hash_max_size; | |
| 15 ngx_uint_t hash_bucket_size; | |
| 16 } ngx_http_map_conf_t; | |
| 17 | |
| 18 | |
| 19 typedef struct { | |
| 593 | 20 ngx_hash_keys_arrays_t keys; |
| 589 | 21 |
| 22 ngx_array_t *values_hash; | |
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23 #if (NGX_PCRE) |
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24 ngx_array_t regexes; |
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25 #endif |
| 589 | 26 |
| 27 ngx_http_variable_value_t *default_value; | |
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28 ngx_conf_t *cf; |
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29 unsigned hostnames:1; |
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30 unsigned no_cacheable:1; |
| 589 | 31 } ngx_http_map_conf_ctx_t; |
| 32 | |
| 33 | |
| 34 typedef struct { | |
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35 ngx_http_map_t map; |
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36 ngx_http_complex_value_t value; |
| 589 | 37 ngx_http_variable_value_t *default_value; |
| 38 ngx_uint_t hostnames; /* unsigned hostnames:1 */ | |
| 39 } ngx_http_map_ctx_t; | |
| 40 | |
| 41 | |
| 42 static int ngx_libc_cdecl ngx_http_map_cmp_dns_wildcards(const void *one, | |
| 43 const void *two); | |
| 44 static void *ngx_http_map_create_conf(ngx_conf_t *cf); | |
| 45 static char *ngx_http_map_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); | |
| 46 static char *ngx_http_map(ngx_conf_t *cf, ngx_command_t *dummy, void *conf); | |
| 47 | |
| 48 | |
| 49 static ngx_command_t ngx_http_map_commands[] = { | |
| 50 | |
| 51 { ngx_string("map"), | |
| 52 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE2, | |
| 53 ngx_http_map_block, | |
| 54 NGX_HTTP_MAIN_CONF_OFFSET, | |
| 55 0, | |
| 56 NULL }, | |
| 57 | |
| 58 { ngx_string("map_hash_max_size"), | |
| 59 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, | |
| 60 ngx_conf_set_num_slot, | |
| 61 NGX_HTTP_MAIN_CONF_OFFSET, | |
| 62 offsetof(ngx_http_map_conf_t, hash_max_size), | |
| 63 NULL }, | |
| 64 | |
| 65 { ngx_string("map_hash_bucket_size"), | |
| 66 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, | |
| 67 ngx_conf_set_num_slot, | |
| 68 NGX_HTTP_MAIN_CONF_OFFSET, | |
| 69 offsetof(ngx_http_map_conf_t, hash_bucket_size), | |
| 70 NULL }, | |
| 71 | |
| 72 ngx_null_command | |
| 73 }; | |
| 74 | |
| 75 | |
| 76 static ngx_http_module_t ngx_http_map_module_ctx = { | |
| 77 NULL, /* preconfiguration */ | |
| 78 NULL, /* postconfiguration */ | |
| 79 | |
| 80 ngx_http_map_create_conf, /* create main configuration */ | |
| 81 NULL, /* init main configuration */ | |
| 82 | |
| 83 NULL, /* create server configuration */ | |
| 84 NULL, /* merge server configuration */ | |
| 85 | |
| 86 NULL, /* create location configuration */ | |
| 87 NULL /* merge location configuration */ | |
| 88 }; | |
| 89 | |
| 90 | |
| 91 ngx_module_t ngx_http_map_module = { | |
| 92 NGX_MODULE_V1, | |
| 93 &ngx_http_map_module_ctx, /* module context */ | |
| 94 ngx_http_map_commands, /* module directives */ | |
| 95 NGX_HTTP_MODULE, /* module type */ | |
| 96 NULL, /* init master */ | |
| 97 NULL, /* init module */ | |
| 98 NULL, /* init process */ | |
| 99 NULL, /* init thread */ | |
| 100 NULL, /* exit thread */ | |
| 101 NULL, /* exit process */ | |
| 102 NULL, /* exit master */ | |
| 103 NGX_MODULE_V1_PADDING | |
| 104 }; | |
| 105 | |
| 106 | |
| 107 static ngx_int_t | |
| 108 ngx_http_map_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
| 109 uintptr_t data) | |
| 110 { | |
| 111 ngx_http_map_ctx_t *map = (ngx_http_map_ctx_t *) data; | |
| 112 | |
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113 ngx_str_t val, str; |
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114 ngx_http_complex_value_t *cv; |
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115 ngx_http_variable_value_t *value; |
| 589 | 116 |
| 117 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 118 "http map started"); | |
| 119 | |
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120 if (ngx_http_complex_value(r, &map->value, &val) != NGX_OK) { |
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121 return NGX_ERROR; |
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122 } |
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123 |
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124 if (map->hostnames && val.len > 0 && val.data[val.len - 1] == '.') { |
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125 val.len--; |
| 589 | 126 } |
| 127 | |
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128 value = ngx_http_map_find(r, &map->map, &val); |
| 589 | 129 |
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130 if (value == NULL) { |
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131 value = map->default_value; |
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132 } |
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133 |
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134 if (!value->valid) { |
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135 cv = (ngx_http_complex_value_t *) value->data; |
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136 |
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137 if (ngx_http_complex_value(r, cv, &str) != NGX_OK) { |
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138 return NGX_ERROR; |
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139 } |
| 589 | 140 |
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141 v->valid = 1; |
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142 v->no_cacheable = 0; |
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143 v->not_found = 0; |
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144 v->len = str.len; |
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145 v->data = str.data; |
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146 |
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147 } else { |
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148 *v = *value; |
| 589 | 149 } |
| 150 | |
| 151 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 6480 | 152 "http map: \"%V\" \"%v\"", &val, v); |
| 589 | 153 |
| 154 return NGX_OK; | |
| 155 } | |
| 156 | |
| 157 | |
| 158 static void * | |
| 159 ngx_http_map_create_conf(ngx_conf_t *cf) | |
| 160 { | |
| 161 ngx_http_map_conf_t *mcf; | |
| 162 | |
| 163 mcf = ngx_palloc(cf->pool, sizeof(ngx_http_map_conf_t)); | |
| 164 if (mcf == NULL) { | |
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165 return NULL; |
| 589 | 166 } |
| 167 | |
| 168 mcf->hash_max_size = NGX_CONF_UNSET_UINT; | |
| 169 mcf->hash_bucket_size = NGX_CONF_UNSET_UINT; | |
| 170 | |
| 171 return mcf; | |
| 172 } | |
| 173 | |
| 174 | |
| 175 static char * | |
| 176 ngx_http_map_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 177 { | |
| 178 ngx_http_map_conf_t *mcf = conf; | |
| 179 | |
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180 char *rv; |
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181 ngx_str_t *value, name; |
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182 ngx_conf_t save; |
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183 ngx_pool_t *pool; |
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184 ngx_hash_init_t hash; |
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185 ngx_http_map_ctx_t *map; |
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186 ngx_http_variable_t *var; |
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187 ngx_http_map_conf_ctx_t ctx; |
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188 ngx_http_compile_complex_value_t ccv; |
| 589 | 189 |
| 190 if (mcf->hash_max_size == NGX_CONF_UNSET_UINT) { | |
| 191 mcf->hash_max_size = 2048; | |
| 192 } | |
| 193 | |
| 194 if (mcf->hash_bucket_size == NGX_CONF_UNSET_UINT) { | |
| 195 mcf->hash_bucket_size = ngx_cacheline_size; | |
| 196 | |
| 197 } else { | |
| 198 mcf->hash_bucket_size = ngx_align(mcf->hash_bucket_size, | |
| 199 ngx_cacheline_size); | |
| 200 } | |
| 201 | |
| 202 map = ngx_pcalloc(cf->pool, sizeof(ngx_http_map_ctx_t)); | |
| 203 if (map == NULL) { | |
| 204 return NGX_CONF_ERROR; | |
| 205 } | |
| 206 | |
| 207 value = cf->args->elts; | |
| 208 | |
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209 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
| 589 | 210 |
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211 ccv.cf = cf; |
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212 ccv.value = &value[1]; |
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213 ccv.complex_value = &map->value; |
| 589 | 214 |
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215 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
| 589 | 216 return NGX_CONF_ERROR; |
| 217 } | |
| 218 | |
| 219 name = value[2]; | |
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220 |
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221 if (name.data[0] != '$') { |
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222 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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223 "invalid variable name \"%V\"", &name); |
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224 return NGX_CONF_ERROR; |
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225 } |
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226 |
| 589 | 227 name.len--; |
| 228 name.data++; | |
| 229 | |
| 1565 | 230 var = ngx_http_add_variable(cf, &name, NGX_HTTP_VAR_CHANGEABLE); |
| 589 | 231 if (var == NULL) { |
| 232 return NGX_CONF_ERROR; | |
| 233 } | |
| 234 | |
| 637 | 235 var->get_handler = ngx_http_map_variable; |
| 589 | 236 var->data = (uintptr_t) map; |
| 237 | |
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238 pool = ngx_create_pool(NGX_DEFAULT_POOL_SIZE, cf->log); |
| 589 | 239 if (pool == NULL) { |
| 240 return NGX_CONF_ERROR; | |
| 241 } | |
| 242 | |
| 593 | 243 ctx.keys.pool = cf->pool; |
| 244 ctx.keys.temp_pool = pool; | |
| 589 | 245 |
| 593 | 246 if (ngx_hash_keys_array_init(&ctx.keys, NGX_HASH_LARGE) != NGX_OK) { |
| 589 | 247 ngx_destroy_pool(pool); |
| 248 return NGX_CONF_ERROR; | |
| 249 } | |
| 250 | |
| 593 | 251 ctx.values_hash = ngx_pcalloc(pool, sizeof(ngx_array_t) * ctx.keys.hsize); |
| 589 | 252 if (ctx.values_hash == NULL) { |
| 253 ngx_destroy_pool(pool); | |
| 254 return NGX_CONF_ERROR; | |
| 255 } | |
| 256 | |
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257 #if (NGX_PCRE) |
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258 if (ngx_array_init(&ctx.regexes, cf->pool, 2, sizeof(ngx_http_map_regex_t)) |
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259 != NGX_OK) |
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260 { |
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261 ngx_destroy_pool(pool); |
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262 return NGX_CONF_ERROR; |
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263 } |
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264 #endif |
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265 |
| 589 | 266 ctx.default_value = NULL; |
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267 ctx.cf = &save; |
| 589 | 268 ctx.hostnames = 0; |
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269 ctx.no_cacheable = 0; |
| 589 | 270 |
| 271 save = *cf; | |
| 272 cf->pool = pool; | |
| 273 cf->ctx = &ctx; | |
| 274 cf->handler = ngx_http_map; | |
| 275 cf->handler_conf = conf; | |
| 276 | |
| 277 rv = ngx_conf_parse(cf, NULL); | |
| 278 | |
| 279 *cf = save; | |
| 280 | |
| 281 if (rv != NGX_CONF_OK) { | |
| 282 ngx_destroy_pool(pool); | |
| 283 return rv; | |
| 284 } | |
| 285 | |
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286 if (ctx.no_cacheable) { |
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287 var->flags |= NGX_HTTP_VAR_NOCACHEABLE; |
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288 } |
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289 |
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290 map->default_value = ctx.default_value ? ctx.default_value: |
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291 &ngx_http_variable_null_value; |
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292 |
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293 map->hostnames = ctx.hostnames; |
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294 |
| 589 | 295 hash.key = ngx_hash_key_lc; |
| 296 hash.max_size = mcf->hash_max_size; | |
| 297 hash.bucket_size = mcf->hash_bucket_size; | |
| 298 hash.name = "map_hash"; | |
| 299 hash.pool = cf->pool; | |
| 300 | |
| 593 | 301 if (ctx.keys.keys.nelts) { |
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302 hash.hash = &map->map.hash.hash; |
| 589 | 303 hash.temp_pool = NULL; |
| 304 | |
| 593 | 305 if (ngx_hash_init(&hash, ctx.keys.keys.elts, ctx.keys.keys.nelts) |
| 591 | 306 != NGX_OK) |
| 307 { | |
| 593 | 308 ngx_destroy_pool(pool); |
| 589 | 309 return NGX_CONF_ERROR; |
| 310 } | |
| 311 } | |
| 312 | |
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313 if (ctx.keys.dns_wc_head.nelts) { |
| 589 | 314 |
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315 ngx_qsort(ctx.keys.dns_wc_head.elts, |
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316 (size_t) ctx.keys.dns_wc_head.nelts, |
| 589 | 317 sizeof(ngx_hash_key_t), ngx_http_map_cmp_dns_wildcards); |
| 318 | |
| 319 hash.hash = NULL; | |
| 320 hash.temp_pool = pool; | |
| 321 | |
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322 if (ngx_hash_wildcard_init(&hash, ctx.keys.dns_wc_head.elts, |
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323 ctx.keys.dns_wc_head.nelts) |
| 589 | 324 != NGX_OK) |
| 325 { | |
| 593 | 326 ngx_destroy_pool(pool); |
| 589 | 327 return NGX_CONF_ERROR; |
| 328 } | |
| 329 | |
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330 map->map.hash.wc_head = (ngx_hash_wildcard_t *) hash.hash; |
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331 } |
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332 |
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333 if (ctx.keys.dns_wc_tail.nelts) { |
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334 |
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335 ngx_qsort(ctx.keys.dns_wc_tail.elts, |
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336 (size_t) ctx.keys.dns_wc_tail.nelts, |
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337 sizeof(ngx_hash_key_t), ngx_http_map_cmp_dns_wildcards); |
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338 |
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339 hash.hash = NULL; |
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340 hash.temp_pool = pool; |
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341 |
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342 if (ngx_hash_wildcard_init(&hash, ctx.keys.dns_wc_tail.elts, |
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343 ctx.keys.dns_wc_tail.nelts) |
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344 != NGX_OK) |
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345 { |
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346 ngx_destroy_pool(pool); |
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347 return NGX_CONF_ERROR; |
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348 } |
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349 |
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350 map->map.hash.wc_tail = (ngx_hash_wildcard_t *) hash.hash; |
| 589 | 351 } |
| 352 | |
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353 #if (NGX_PCRE) |
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354 |
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355 if (ctx.regexes.nelts) { |
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356 map->map.regex = ctx.regexes.elts; |
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357 map->map.nregex = ctx.regexes.nelts; |
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358 } |
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359 |
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360 #endif |
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361 |
| 589 | 362 ngx_destroy_pool(pool); |
| 363 | |
| 364 return rv; | |
| 365 } | |
| 366 | |
| 367 | |
| 368 static int ngx_libc_cdecl | |
| 369 ngx_http_map_cmp_dns_wildcards(const void *one, const void *two) | |
| 370 { | |
| 371 ngx_hash_key_t *first, *second; | |
| 372 | |
| 373 first = (ngx_hash_key_t *) one; | |
| 374 second = (ngx_hash_key_t *) two; | |
| 375 | |
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376 return ngx_dns_strcmp(first->key.data, second->key.data); |
| 589 | 377 } |
| 378 | |
| 379 | |
| 380 static char * | |
| 381 ngx_http_map(ngx_conf_t *cf, ngx_command_t *dummy, void *conf) | |
| 382 { | |
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383 u_char *data; |
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384 size_t len; |
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385 ngx_int_t rv; |
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386 ngx_str_t *value, v; |
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387 ngx_uint_t i, key; |
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388 ngx_http_map_conf_ctx_t *ctx; |
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389 ngx_http_complex_value_t cv, *cvp; |
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390 ngx_http_variable_value_t *var, **vp; |
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391 ngx_http_compile_complex_value_t ccv; |
| 589 | 392 |
| 393 ctx = cf->ctx; | |
| 394 | |
| 395 value = cf->args->elts; | |
| 396 | |
| 397 if (cf->args->nelts == 1 | |
| 398 && ngx_strcmp(value[0].data, "hostnames") == 0) | |
| 399 { | |
| 400 ctx->hostnames = 1; | |
| 401 return NGX_CONF_OK; | |
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402 } |
| 589 | 403 |
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404 if (cf->args->nelts == 1 |
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405 && ngx_strcmp(value[0].data, "volatile") == 0) |
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406 { |
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407 ctx->no_cacheable = 1; |
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408 return NGX_CONF_OK; |
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409 } |
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410 |
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411 if (cf->args->nelts != 2) { |
| 589 | 412 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 413 "invalid number of the map parameters"); | |
| 414 return NGX_CONF_ERROR; | |
| 415 } | |
| 416 | |
| 417 if (ngx_strcmp(value[0].data, "include") == 0) { | |
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418 return ngx_conf_include(cf, dummy, conf); |
| 589 | 419 } |
| 420 | |
| 421 key = 0; | |
| 422 | |
| 423 for (i = 0; i < value[1].len; i++) { | |
| 424 key = ngx_hash(key, value[1].data[i]); | |
| 425 } | |
| 426 | |
| 593 | 427 key %= ctx->keys.hsize; |
| 589 | 428 |
| 429 vp = ctx->values_hash[key].elts; | |
| 430 | |
| 431 if (vp) { | |
| 432 for (i = 0; i < ctx->values_hash[key].nelts; i++) { | |
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433 |
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434 if (vp[i]->valid) { |
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435 data = vp[i]->data; |
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436 len = vp[i]->len; |
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437 |
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438 } else { |
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439 cvp = (ngx_http_complex_value_t *) vp[i]->data; |
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440 data = cvp->value.data; |
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441 len = cvp->value.len; |
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442 } |
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443 |
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444 if (value[1].len != len) { |
| 589 | 445 continue; |
| 446 } | |
| 447 | |
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448 if (ngx_strncmp(value[1].data, data, len) == 0) { |
| 589 | 449 var = vp[i]; |
| 450 goto found; | |
| 451 } | |
| 452 } | |
| 453 | |
| 454 } else { | |
| 455 if (ngx_array_init(&ctx->values_hash[key], cf->pool, 4, | |
| 456 sizeof(ngx_http_variable_value_t *)) | |
| 457 != NGX_OK) | |
| 458 { | |
| 459 return NGX_CONF_ERROR; | |
| 460 } | |
| 461 } | |
| 462 | |
| 593 | 463 var = ngx_palloc(ctx->keys.pool, sizeof(ngx_http_variable_value_t)); |
| 589 | 464 if (var == NULL) { |
| 465 return NGX_CONF_ERROR; | |
| 466 } | |
| 467 | |
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468 v.len = value[1].len; |
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469 v.data = ngx_pstrdup(ctx->keys.pool, &value[1]); |
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470 if (v.data == NULL) { |
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471 return NGX_CONF_ERROR; |
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472 } |
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473 |
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474 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
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475 |
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476 ccv.cf = ctx->cf; |
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477 ccv.value = &v; |
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478 ccv.complex_value = &cv; |
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479 |
|
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480 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
| 589 | 481 return NGX_CONF_ERROR; |
| 482 } | |
| 483 | |
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484 if (cv.lengths != NULL) { |
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485 cvp = ngx_palloc(ctx->keys.pool, sizeof(ngx_http_complex_value_t)); |
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486 if (cvp == NULL) { |
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487 return NGX_CONF_ERROR; |
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488 } |
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489 |
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490 *cvp = cv; |
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491 |
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492 var->len = 0; |
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493 var->data = (u_char *) cvp; |
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494 var->valid = 0; |
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495 |
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496 } else { |
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497 var->len = v.len; |
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498 var->data = v.data; |
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499 var->valid = 1; |
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500 } |
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501 |
| 1565 | 502 var->no_cacheable = 0; |
| 589 | 503 var->not_found = 0; |
| 504 | |
| 505 vp = ngx_array_push(&ctx->values_hash[key]); | |
| 506 if (vp == NULL) { | |
| 507 return NGX_CONF_ERROR; | |
| 508 } | |
| 509 | |
| 510 *vp = var; | |
| 511 | |
| 512 found: | |
| 513 | |
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514 if (ngx_strcmp(value[0].data, "default") == 0) { |
| 589 | 515 |
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516 if (ctx->default_value) { |
| 589 | 517 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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518 "duplicate default map parameter"); |
| 589 | 519 return NGX_CONF_ERROR; |
| 520 } | |
| 521 | |
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522 ctx->default_value = var; |
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523 |
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524 return NGX_CONF_OK; |
| 589 | 525 } |
| 526 | |
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527 #if (NGX_PCRE) |
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528 |
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529 if (value[0].len && value[0].data[0] == '~') { |
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530 ngx_regex_compile_t rc; |
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531 ngx_http_map_regex_t *regex; |
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532 u_char errstr[NGX_MAX_CONF_ERRSTR]; |
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533 |
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534 regex = ngx_array_push(&ctx->regexes); |
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535 if (regex == NULL) { |
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536 return NGX_CONF_ERROR; |
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537 } |
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538 |
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539 value[0].len--; |
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540 value[0].data++; |
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541 |
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542 ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); |
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543 |
|
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544 if (value[0].data[0] == '*') { |
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545 value[0].len--; |
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546 value[0].data++; |
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547 rc.options = NGX_REGEX_CASELESS; |
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548 } |
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549 |
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550 rc.pattern = value[0]; |
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551 rc.err.len = NGX_MAX_CONF_ERRSTR; |
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552 rc.err.data = errstr; |
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553 |
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554 regex->regex = ngx_http_regex_compile(ctx->cf, &rc); |
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555 if (regex->regex == NULL) { |
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556 return NGX_CONF_ERROR; |
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557 } |
|
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558 |
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559 regex->value = var; |
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560 |
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561 return NGX_CONF_OK; |
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562 } |
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|
563 |
|
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564 #endif |
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|
565 |
|
3791
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parents:
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|
566 if (value[0].len && value[0].data[0] == '\\') { |
|
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567 value[0].len--; |
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568 value[0].data++; |
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569 } |
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|
570 |
|
6230
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Win32: MSVC 2015 compatibility.
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|
571 rv = ngx_hash_add_key(&ctx->keys, &value[0], var, |
|
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572 (ctx->hostnames) ? NGX_HASH_WILDCARD_KEY : 0); |
| 589 | 573 |
|
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|
574 if (rv == NGX_OK) { |
| 591 | 575 return NGX_CONF_OK; |
| 576 } | |
| 589 | 577 |
|
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|
578 if (rv == NGX_DECLINED) { |
|
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|
579 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
|
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diff
changeset
|
580 "invalid hostname or wildcard \"%V\"", &value[0]); |
|
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|
581 } |
|
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|
582 |
|
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|
583 if (rv == NGX_BUSY) { |
| 591 | 584 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 585 "conflicting parameter \"%V\"", &value[0]); | |
| 586 } | |
| 589 | 587 |
| 591 | 588 return NGX_CONF_ERROR; |
| 589 | 589 } |