Mercurial > hg > nginx
annotate src/imap/ngx_imap_auth_http_module.c @ 884:4d68c486fcb0
upstream choice modules
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Mon, 04 Dec 2006 16:46:13 +0000 |
| parents | eac23634d614 |
| children | a0310ac2814f |
| rev | line source |
|---|---|
| 521 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 */ | |
| 5 | |
| 6 | |
| 7 #include <ngx_config.h> | |
| 8 #include <ngx_core.h> | |
| 9 #include <ngx_event.h> | |
| 10 #include <ngx_event_connect.h> | |
| 11 #include <ngx_imap.h> | |
| 12 | |
| 13 | |
| 14 typedef struct { | |
| 884 | 15 ngx_peer_addr_t *peer; |
| 521 | 16 |
| 527 | 17 ngx_msec_t timeout; |
| 521 | 18 |
| 527 | 19 ngx_str_t host_header; |
| 20 ngx_str_t uri; | |
| 573 | 21 ngx_str_t header; |
| 22 | |
| 23 ngx_array_t *headers; | |
| 521 | 24 } ngx_imap_auth_http_conf_t; |
| 25 | |
| 26 | |
| 527 | 27 typedef struct ngx_imap_auth_http_ctx_s ngx_imap_auth_http_ctx_t; |
| 28 | |
| 29 typedef void (*ngx_imap_auth_http_handler_pt)(ngx_imap_session_t *s, | |
| 30 ngx_imap_auth_http_ctx_t *ctx); | |
| 31 | |
| 32 struct ngx_imap_auth_http_ctx_s { | |
| 33 ngx_buf_t *request; | |
| 34 ngx_buf_t *response; | |
| 35 ngx_peer_connection_t peer; | |
| 36 | |
| 37 ngx_imap_auth_http_handler_pt handler; | |
| 38 | |
| 39 ngx_uint_t state; | |
| 40 ngx_uint_t hash; /* no needed ? */ | |
| 41 | |
| 42 u_char *header_name_start; | |
| 43 u_char *header_name_end; | |
| 44 u_char *header_start; | |
| 45 u_char *header_end; | |
| 46 | |
| 47 ngx_str_t addr; | |
| 48 ngx_str_t port; | |
| 49 ngx_str_t err; | |
| 567 | 50 ngx_str_t errmsg; |
| 527 | 51 |
| 547 | 52 time_t sleep; |
| 527 | 53 |
| 547 | 54 ngx_pool_t *pool; |
| 527 | 55 }; |
| 521 | 56 |
| 57 | |
| 58 static void ngx_imap_auth_http_write_handler(ngx_event_t *wev); | |
| 59 static void ngx_imap_auth_http_read_handler(ngx_event_t *rev); | |
| 527 | 60 static void ngx_imap_auth_http_ignore_status_line(ngx_imap_session_t *s, |
| 61 ngx_imap_auth_http_ctx_t *ctx); | |
| 62 static void ngx_imap_auth_http_process_headers(ngx_imap_session_t *s, | |
| 63 ngx_imap_auth_http_ctx_t *ctx); | |
| 64 static void ngx_imap_auth_sleep_handler(ngx_event_t *rev); | |
| 65 static ngx_int_t ngx_imap_auth_http_parse_header_line(ngx_imap_session_t *s, | |
| 66 ngx_imap_auth_http_ctx_t *ctx); | |
| 521 | 67 static void ngx_imap_auth_http_block_read(ngx_event_t *rev); |
| 68 static void ngx_imap_auth_http_dummy_handler(ngx_event_t *ev); | |
| 69 static ngx_buf_t *ngx_imap_auth_http_create_request(ngx_imap_session_t *s, | |
| 547 | 70 ngx_pool_t *pool, ngx_imap_auth_http_conf_t *ahcf); |
| 633 | 71 static ngx_int_t ngx_imap_auth_http_escape(ngx_pool_t *pool, ngx_str_t *text, |
| 72 ngx_str_t *escaped); | |
| 521 | 73 |
| 74 static void *ngx_imap_auth_http_create_conf(ngx_conf_t *cf); | |
| 75 static char *ngx_imap_auth_http_merge_conf(ngx_conf_t *cf, void *parent, | |
| 76 void *child); | |
| 77 static char *ngx_imap_auth_http(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); | |
| 573 | 78 static char *ngx_imap_auth_http_header(ngx_conf_t *cf, ngx_command_t *cmd, |
| 79 void *conf); | |
| 521 | 80 |
| 81 | |
| 82 static ngx_command_t ngx_imap_auth_http_commands[] = { | |
| 83 | |
| 84 { ngx_string("auth_http"), | |
| 85 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, | |
| 86 ngx_imap_auth_http, | |
| 87 NGX_IMAP_SRV_CONF_OFFSET, | |
| 88 0, | |
| 89 NULL }, | |
| 90 | |
| 91 { ngx_string("auth_http_timeout"), | |
| 92 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, | |
| 93 ngx_conf_set_msec_slot, | |
| 94 NGX_IMAP_SRV_CONF_OFFSET, | |
| 95 offsetof(ngx_imap_auth_http_conf_t, timeout), | |
| 96 NULL }, | |
| 97 | |
| 573 | 98 { ngx_string("auth_http_header"), |
| 99 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE2, | |
| 100 ngx_imap_auth_http_header, | |
| 101 NGX_IMAP_SRV_CONF_OFFSET, | |
| 102 0, | |
| 103 NULL }, | |
| 104 | |
| 521 | 105 ngx_null_command |
| 106 }; | |
| 107 | |
| 108 | |
| 109 static ngx_imap_module_t ngx_imap_auth_http_module_ctx = { | |
| 110 NULL, /* create main configuration */ | |
| 111 NULL, /* init main configuration */ | |
| 112 | |
| 113 ngx_imap_auth_http_create_conf, /* create server configuration */ | |
| 114 ngx_imap_auth_http_merge_conf /* merge server configuration */ | |
| 115 }; | |
| 116 | |
| 117 | |
| 118 ngx_module_t ngx_imap_auth_http_module = { | |
| 119 NGX_MODULE_V1, | |
| 120 &ngx_imap_auth_http_module_ctx, /* module context */ | |
| 121 ngx_imap_auth_http_commands, /* module directives */ | |
| 122 NGX_IMAP_MODULE, /* module type */ | |
| 541 | 123 NULL, /* init master */ |
| 521 | 124 NULL, /* init module */ |
| 541 | 125 NULL, /* init process */ |
| 126 NULL, /* init thread */ | |
| 127 NULL, /* exit thread */ | |
| 128 NULL, /* exit process */ | |
| 129 NULL, /* exit master */ | |
| 130 NGX_MODULE_V1_PADDING | |
| 521 | 131 }; |
| 132 | |
| 133 | |
| 800 | 134 static char *ngx_imap_auth_http_protocol[] = { "pop3", "imap" }; |
| 135 static ngx_str_t ngx_imap_auth_http_method[] = { | |
| 809 | 136 ngx_string("plain"), |
| 137 ngx_string("apop"), | |
| 138 ngx_string("cram-md5") | |
| 800 | 139 }; |
| 521 | 140 |
| 141 | |
| 142 void | |
| 143 ngx_imap_auth_http_init(ngx_imap_session_t *s) | |
| 144 { | |
| 145 ngx_int_t rc; | |
| 547 | 146 ngx_pool_t *pool; |
| 521 | 147 ngx_imap_auth_http_ctx_t *ctx; |
| 148 ngx_imap_auth_http_conf_t *ahcf; | |
| 149 | |
| 541 | 150 s->connection->log->action = "in http auth state"; |
| 151 | |
| 547 | 152 pool = ngx_create_pool(2048, s->connection->log); |
| 153 if (pool == NULL) { | |
| 525 | 154 ngx_imap_session_internal_server_error(s); |
| 521 | 155 return; |
| 156 } | |
| 157 | |
| 547 | 158 ctx = ngx_pcalloc(pool, sizeof(ngx_imap_auth_http_ctx_t)); |
| 159 if (ctx == NULL) { | |
| 160 ngx_destroy_pool(pool); | |
| 161 ngx_imap_session_internal_server_error(s); | |
| 162 return; | |
| 163 } | |
| 164 | |
| 165 ctx->pool = pool; | |
| 166 | |
| 521 | 167 ahcf = ngx_imap_get_module_srv_conf(s, ngx_imap_auth_http_module); |
| 168 | |
| 547 | 169 ctx->request = ngx_imap_auth_http_create_request(s, pool, ahcf); |
| 521 | 170 if (ctx->request == NULL) { |
| 547 | 171 ngx_destroy_pool(ctx->pool); |
| 525 | 172 ngx_imap_session_internal_server_error(s); |
| 521 | 173 return; |
| 174 } | |
| 175 | |
| 176 ngx_imap_set_ctx(s, ctx, ngx_imap_auth_http_module); | |
| 177 | |
| 884 | 178 ctx->peer.sockaddr = ahcf->peer->sockaddr; |
| 179 ctx->peer.socklen = ahcf->peer->socklen; | |
| 180 ctx->peer.name = &ahcf->peer->name; | |
| 181 ctx->peer.get = ngx_event_get_peer; | |
| 521 | 182 ctx->peer.log = s->connection->log; |
| 183 ctx->peer.log_error = NGX_ERROR_ERR; | |
| 184 | |
| 185 rc = ngx_event_connect_peer(&ctx->peer); | |
| 186 | |
| 543 | 187 if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) { |
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188 if (ctx->peer.connection) { |
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189 ngx_close_connection(ctx->peer.connection); |
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190 } |
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191 |
| 547 | 192 ngx_destroy_pool(ctx->pool); |
| 525 | 193 ngx_imap_session_internal_server_error(s); |
| 521 | 194 return; |
| 195 } | |
| 196 | |
| 197 ctx->peer.connection->data = s; | |
| 198 ctx->peer.connection->pool = s->connection->pool; | |
| 199 | |
| 200 s->connection->read->handler = ngx_imap_auth_http_block_read; | |
| 201 ctx->peer.connection->read->handler = ngx_imap_auth_http_read_handler; | |
| 202 ctx->peer.connection->write->handler = ngx_imap_auth_http_write_handler; | |
| 203 | |
| 527 | 204 ctx->handler = ngx_imap_auth_http_ignore_status_line; |
| 205 | |
| 541 | 206 ngx_add_timer(ctx->peer.connection->read, ahcf->timeout); |
| 207 ngx_add_timer(ctx->peer.connection->write, ahcf->timeout); | |
| 208 | |
| 521 | 209 if (rc == NGX_OK) { |
| 210 ngx_imap_auth_http_write_handler(ctx->peer.connection->write); | |
| 211 return; | |
| 212 } | |
| 213 } | |
| 214 | |
| 215 | |
| 216 static void | |
| 217 ngx_imap_auth_http_write_handler(ngx_event_t *wev) | |
| 218 { | |
| 219 ssize_t n, size; | |
| 220 ngx_connection_t *c; | |
| 221 ngx_imap_session_t *s; | |
| 222 ngx_imap_auth_http_ctx_t *ctx; | |
| 223 ngx_imap_auth_http_conf_t *ahcf; | |
| 224 | |
| 225 c = wev->data; | |
| 226 s = c->data; | |
| 227 | |
| 228 ctx = ngx_imap_get_module_ctx(s, ngx_imap_auth_http_module); | |
| 229 | |
| 230 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, wev->log, 0, | |
| 231 "imap auth http write handler"); | |
| 232 | |
| 577 | 233 if (wev->timedout) { |
| 521 | 234 ngx_log_error(NGX_LOG_ERR, wev->log, NGX_ETIMEDOUT, |
| 884 | 235 "auth http server %V timed out", ctx->peer.name); |
| 525 | 236 ngx_close_connection(ctx->peer.connection); |
| 547 | 237 ngx_destroy_pool(ctx->pool); |
| 525 | 238 ngx_imap_session_internal_server_error(s); |
| 521 | 239 return; |
| 240 } | |
| 241 | |
| 242 size = ctx->request->last - ctx->request->pos; | |
| 243 | |
| 244 n = ngx_send(c, ctx->request->pos, size); | |
| 245 | |
| 246 if (n == NGX_ERROR) { | |
| 525 | 247 ngx_close_connection(ctx->peer.connection); |
| 547 | 248 ngx_destroy_pool(ctx->pool); |
| 525 | 249 ngx_imap_session_internal_server_error(s); |
| 521 | 250 return; |
| 251 } | |
| 252 | |
| 253 if (n > 0) { | |
| 254 ctx->request->pos += n; | |
| 255 | |
| 256 if (n == size) { | |
| 257 wev->handler = ngx_imap_auth_http_dummy_handler; | |
| 258 | |
| 259 if (wev->timer_set) { | |
| 260 ngx_del_timer(wev); | |
| 261 } | |
| 262 | |
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263 if (ngx_handle_write_event(wev, 0) == NGX_ERROR) { |
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264 ngx_close_connection(ctx->peer.connection); |
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265 ngx_destroy_pool(ctx->pool); |
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266 ngx_imap_session_internal_server_error(s); |
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267 } |
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268 |
| 521 | 269 return; |
| 270 } | |
| 271 } | |
| 272 | |
| 273 if (!wev->timer_set) { | |
| 274 ahcf = ngx_imap_get_module_srv_conf(s, ngx_imap_auth_http_module); | |
| 275 ngx_add_timer(wev, ahcf->timeout); | |
| 276 } | |
| 277 } | |
| 278 | |
| 279 | |
| 280 static void | |
| 281 ngx_imap_auth_http_read_handler(ngx_event_t *rev) | |
| 282 { | |
| 525 | 283 ssize_t n, size; |
| 521 | 284 ngx_connection_t *c; |
| 285 ngx_imap_session_t *s; | |
| 286 ngx_imap_auth_http_ctx_t *ctx; | |
| 287 | |
| 288 c = rev->data; | |
| 289 s = c->data; | |
| 290 | |
| 291 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
| 292 "imap auth http read handler"); | |
| 293 | |
| 525 | 294 ctx = ngx_imap_get_module_ctx(s, ngx_imap_auth_http_module); |
| 295 | |
| 577 | 296 if (rev->timedout) { |
| 525 | 297 ngx_log_error(NGX_LOG_ERR, rev->log, NGX_ETIMEDOUT, |
| 884 | 298 "auth http server %V timed out", ctx->peer.name); |
| 525 | 299 ngx_close_connection(ctx->peer.connection); |
| 547 | 300 ngx_destroy_pool(ctx->pool); |
| 525 | 301 ngx_imap_session_internal_server_error(s); |
| 302 return; | |
| 303 } | |
| 304 | |
| 305 if (ctx->response == NULL) { | |
| 547 | 306 ctx->response = ngx_create_temp_buf(ctx->pool, 1024); |
| 525 | 307 if (ctx->response == NULL) { |
| 308 ngx_close_connection(ctx->peer.connection); | |
| 547 | 309 ngx_destroy_pool(ctx->pool); |
| 525 | 310 ngx_imap_session_internal_server_error(s); |
| 311 return; | |
| 312 } | |
| 313 } | |
| 314 | |
| 527 | 315 size = ctx->response->end - ctx->response->last; |
| 525 | 316 |
| 317 n = ngx_recv(c, ctx->response->pos, size); | |
| 318 | |
| 527 | 319 if (n > 0) { |
| 320 ctx->response->last += n; | |
| 321 | |
| 322 ctx->handler(s, ctx); | |
| 323 return; | |
| 324 } | |
| 325 | |
| 326 if (n == NGX_AGAIN) { | |
| 525 | 327 return; |
| 328 } | |
| 329 | |
| 527 | 330 ngx_close_connection(ctx->peer.connection); |
| 547 | 331 ngx_destroy_pool(ctx->pool); |
| 527 | 332 ngx_imap_session_internal_server_error(s); |
| 333 } | |
| 525 | 334 |
| 335 | |
| 527 | 336 static void |
| 337 ngx_imap_auth_http_ignore_status_line(ngx_imap_session_t *s, | |
| 338 ngx_imap_auth_http_ctx_t *ctx) | |
| 339 { | |
| 340 u_char *p, ch; | |
| 341 enum { | |
| 342 sw_start = 0, | |
| 343 sw_H, | |
| 344 sw_HT, | |
| 345 sw_HTT, | |
| 346 sw_HTTP, | |
| 347 sw_skip, | |
| 348 sw_almost_done | |
| 349 } state; | |
| 350 | |
| 351 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
| 352 "imap auth http process status line"); | |
| 353 | |
| 354 state = ctx->state; | |
| 355 | |
| 356 for (p = ctx->response->pos; p < ctx->response->last; p++) { | |
| 357 ch = *p; | |
| 358 | |
| 359 switch (state) { | |
| 360 | |
| 361 /* "HTTP/" */ | |
| 362 case sw_start: | |
| 363 if (ch == 'H') { | |
| 364 state = sw_H; | |
| 365 break; | |
| 366 } | |
| 367 goto next; | |
| 368 | |
| 369 case sw_H: | |
| 370 if (ch == 'T') { | |
| 371 state = sw_HT; | |
| 372 break; | |
| 373 } | |
| 374 goto next; | |
| 375 | |
| 376 case sw_HT: | |
| 377 if (ch == 'T') { | |
| 378 state = sw_HTT; | |
| 379 break; | |
| 380 } | |
| 381 goto next; | |
| 382 | |
| 383 case sw_HTT: | |
| 384 if (ch == 'P') { | |
| 385 state = sw_HTTP; | |
| 386 break; | |
| 387 } | |
| 388 goto next; | |
| 389 | |
| 390 case sw_HTTP: | |
| 391 if (ch == '/') { | |
| 392 state = sw_skip; | |
| 393 break; | |
| 394 } | |
| 395 goto next; | |
| 396 | |
| 397 /* any text until end of line */ | |
| 398 case sw_skip: | |
| 399 switch (ch) { | |
| 400 case CR: | |
| 401 state = sw_almost_done; | |
| 402 | |
| 403 break; | |
| 577 | 404 case LF: |
| 527 | 405 goto done; |
| 406 } | |
| 407 break; | |
| 408 | |
| 409 /* end of status line */ | |
| 410 case sw_almost_done: | |
| 411 if (ch == LF) { | |
| 412 goto done; | |
| 413 } | |
| 414 | |
| 415 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 541 | 416 "auth http server &V sent invalid response", |
| 884 | 417 ctx->peer.name); |
| 527 | 418 ngx_close_connection(ctx->peer.connection); |
| 547 | 419 ngx_destroy_pool(ctx->pool); |
| 527 | 420 ngx_imap_session_internal_server_error(s); |
| 421 return; | |
| 422 } | |
| 423 } | |
| 424 | |
| 425 ctx->response->pos = p; | |
| 426 ctx->state = state; | |
| 427 | |
| 428 return; | |
| 429 | |
| 430 next: | |
| 431 | |
| 432 p = ctx->response->start - 1; | |
| 433 | |
| 434 done: | |
| 435 | |
| 436 ctx->response->pos = p + 1; | |
| 437 ctx->state = 0; | |
| 438 ctx->handler = ngx_imap_auth_http_process_headers; | |
| 439 ctx->handler(s, ctx); | |
| 440 } | |
| 525 | 441 |
| 442 | |
| 527 | 443 static void |
| 444 ngx_imap_auth_http_process_headers(ngx_imap_session_t *s, | |
| 445 ngx_imap_auth_http_ctx_t *ctx) | |
| 446 { | |
| 447 u_char *p; | |
| 547 | 448 time_t timer; |
| 527 | 449 size_t len, size; |
| 450 ngx_int_t rc, port, n; | |
| 884 | 451 ngx_peer_addr_t *peer; |
| 527 | 452 struct sockaddr_in *sin; |
| 525 | 453 |
| 527 | 454 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, |
| 455 "imap auth http process headers"); | |
| 456 | |
| 457 for ( ;; ) { | |
| 458 rc = ngx_imap_auth_http_parse_header_line(s, ctx); | |
| 459 | |
| 460 if (rc == NGX_OK) { | |
| 461 | |
| 462 #if (NGX_DEBUG) | |
| 463 { | |
| 464 ngx_str_t key, value; | |
| 465 | |
| 466 key.len = ctx->header_name_end - ctx->header_name_start; | |
| 467 key.data = ctx->header_name_start; | |
| 468 value.len = ctx->header_end - ctx->header_start; | |
| 469 value.data = ctx->header_start; | |
| 470 | |
| 471 ngx_log_debug2(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
| 472 "auth http header: \"%V: %V\"", | |
| 473 &key, &value); | |
| 474 } | |
| 475 #endif | |
| 476 | |
| 477 len = ctx->header_name_end - ctx->header_name_start; | |
| 478 | |
| 479 if (len == sizeof("Auth-Status") - 1 | |
| 480 && ngx_strncasecmp(ctx->header_name_start, "Auth-Status", | |
| 481 sizeof("Auth-Status") - 1) == 0) | |
| 482 { | |
| 483 len = ctx->header_end - ctx->header_start; | |
| 484 | |
| 485 if (len == 2 | |
| 486 && ctx->header_start[0] == 'O' | |
| 487 && ctx->header_start[1] == 'K') | |
| 488 { | |
| 489 continue; | |
| 490 } | |
| 491 | |
| 883 | 492 if (len == 4 |
| 493 && ctx->header_start[0] == 'W' | |
| 494 && ctx->header_start[1] == 'A' | |
| 495 && ctx->header_start[2] == 'I' | |
| 496 && ctx->header_start[3] == 'T') | |
| 497 { | |
| 498 s->auth_wait = 1; | |
| 499 continue; | |
| 500 } | |
| 501 | |
| 567 | 502 ctx->errmsg.len = len; |
| 503 ctx->errmsg.data = ctx->header_start; | |
| 504 | |
| 527 | 505 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { |
|
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parents:
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diff
changeset
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506 size = sizeof("-ERR ") - 1 + len + sizeof(CRLF) - 1; |
| 527 | 507 |
| 508 } else { | |
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parents:
809
diff
changeset
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509 size = s->tag.len + sizeof("NO ") - 1 + len |
| 527 | 510 + sizeof(CRLF) - 1; |
| 511 } | |
| 512 | |
| 513 p = ngx_pcalloc(s->connection->pool, size); | |
| 514 if (p == NULL) { | |
| 543 | 515 ngx_close_connection(ctx->peer.connection); |
| 547 | 516 ngx_destroy_pool(ctx->pool); |
| 527 | 517 ngx_imap_session_internal_server_error(s); |
| 518 return; | |
| 519 } | |
| 520 | |
| 521 ctx->err.data = p; | |
| 522 | |
| 523 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { | |
| 524 *p++ = '-'; *p++ = 'E'; *p++ = 'R'; *p++ = 'R'; | |
| 525 | |
| 526 } else { | |
| 527 p = ngx_cpymem(p, s->tag.data, s->tag.len); | |
| 528 *p++ = 'N'; *p++ = 'O'; | |
| 529 } | |
| 530 | |
| 531 *p++ = ' '; | |
| 567 | 532 |
| 527 | 533 p = ngx_cpymem(p, ctx->header_start, len); |
| 534 *p++ = CR; *p++ = LF; | |
| 535 | |
| 536 ctx->err.len = p - ctx->err.data; | |
| 537 | |
| 538 continue; | |
| 539 } | |
| 540 | |
| 541 if (len == sizeof("Auth-Server") - 1 | |
| 542 && ngx_strncasecmp(ctx->header_name_start, "Auth-Server", | |
| 543 sizeof("Auth-Server") - 1) == 0) | |
| 544 { | |
| 545 ctx->addr.len = ctx->header_end - ctx->header_start; | |
| 546 ctx->addr.data = ctx->header_start; | |
| 547 | |
| 548 continue; | |
| 549 } | |
| 550 | |
| 551 if (len == sizeof("Auth-Port") - 1 | |
| 552 && ngx_strncasecmp(ctx->header_name_start, "Auth-Port", | |
| 553 sizeof("Auth-Port") - 1) == 0) | |
| 554 { | |
| 555 ctx->port.len = ctx->header_end - ctx->header_start; | |
| 556 ctx->port.data = ctx->header_start; | |
| 557 | |
| 558 continue; | |
| 559 } | |
| 560 | |
| 561 if (len == sizeof("Auth-User") - 1 | |
| 562 && ngx_strncasecmp(ctx->header_name_start, "Auth-User", | |
| 563 sizeof("Auth-User") - 1) == 0) | |
| 564 { | |
| 565 s->login.len = ctx->header_end - ctx->header_start; | |
| 567 | 566 |
| 567 s->login.data = ngx_palloc(s->connection->pool, s->login.len); | |
| 568 if (s->login.data == NULL) { | |
| 569 ngx_close_connection(ctx->peer.connection); | |
| 570 ngx_destroy_pool(ctx->pool); | |
| 571 ngx_imap_session_internal_server_error(s); | |
| 572 return; | |
| 573 } | |
| 574 | |
| 575 ngx_memcpy(s->login.data, ctx->header_start, s->login.len); | |
| 527 | 576 |
| 577 continue; | |
| 578 } | |
| 579 | |
| 800 | 580 if (len == sizeof("Auth-Pass") - 1 |
| 581 && ngx_strncasecmp(ctx->header_name_start, "Auth-Pass", | |
| 582 sizeof("Auth-Pass") - 1) == 0) | |
| 583 { | |
| 584 s->passwd.len = ctx->header_end - ctx->header_start; | |
| 585 | |
| 586 s->passwd.data = ngx_palloc(s->connection->pool, s->passwd.len); | |
| 587 if (s->passwd.data == NULL) { | |
| 588 ngx_close_connection(ctx->peer.connection); | |
| 589 ngx_destroy_pool(ctx->pool); | |
| 590 ngx_imap_session_internal_server_error(s); | |
| 591 return; | |
| 592 } | |
| 593 | |
| 594 ngx_memcpy(s->passwd.data, ctx->header_start, s->passwd.len); | |
| 595 | |
| 596 continue; | |
| 597 } | |
| 598 | |
| 527 | 599 if (len == sizeof("Auth-Wait") - 1 |
| 600 && ngx_strncasecmp(ctx->header_name_start, "Auth-Wait", | |
| 601 sizeof("Auth-Wait") - 1) == 0) | |
| 602 { | |
| 603 n = ngx_atoi(ctx->header_start, | |
| 604 ctx->header_end - ctx->header_start); | |
| 605 | |
| 606 if (n != NGX_ERROR) { | |
| 607 ctx->sleep = n; | |
| 608 } | |
| 609 | |
| 610 continue; | |
| 611 } | |
| 612 | |
| 613 /* ignore other headers */ | |
| 614 | |
| 615 continue; | |
| 616 } | |
| 617 | |
| 618 if (rc == NGX_DONE) { | |
| 619 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
| 620 "auth http header done"); | |
| 621 | |
| 622 ngx_close_connection(ctx->peer.connection); | |
| 623 | |
| 624 if (ctx->err.len) { | |
| 567 | 625 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0, |
| 626 "client login failed: \"%V\"", &ctx->errmsg); | |
| 627 | |
| 539 | 628 s->out = ctx->err; |
| 547 | 629 timer = ctx->sleep; |
| 527 | 630 |
| 547 | 631 ngx_destroy_pool(ctx->pool); |
| 632 | |
| 633 if (timer == 0) { | |
| 539 | 634 s->quit = 1; |
| 541 | 635 ngx_imap_send(s->connection->write); |
| 636 return; | |
| 637 } | |
| 539 | 638 |
| 547 | 639 ngx_add_timer(s->connection->read, timer * 1000); |
| 527 | 640 |
| 641 s->connection->read->handler = ngx_imap_auth_sleep_handler; | |
| 642 | |
| 643 return; | |
| 644 } | |
| 645 | |
| 883 | 646 if (s->auth_wait) { |
| 647 timer = ctx->sleep; | |
| 648 | |
| 649 ngx_destroy_pool(ctx->pool); | |
| 650 | |
| 651 if (timer == 0) { | |
| 652 ngx_imap_auth_http_init(s); | |
| 653 return; | |
| 654 } | |
| 655 | |
| 656 ngx_add_timer(s->connection->read, timer * 1000); | |
| 657 | |
| 658 s->connection->read->handler = ngx_imap_auth_sleep_handler; | |
| 659 | |
| 660 return; | |
| 661 } | |
| 662 | |
| 527 | 663 if (ctx->addr.len == 0 || ctx->port.len == 0) { |
| 664 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 541 | 665 "auth http server %V did not send server or port", |
| 884 | 666 ctx->peer.name); |
| 547 | 667 ngx_destroy_pool(ctx->pool); |
| 527 | 668 ngx_imap_session_internal_server_error(s); |
| 669 return; | |
| 670 } | |
| 671 | |
| 800 | 672 if (s->passwd.data == NULL) { |
| 673 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 674 "auth http server %V did not send password", | |
| 884 | 675 ctx->peer.name); |
| 800 | 676 ngx_destroy_pool(ctx->pool); |
| 677 ngx_imap_session_internal_server_error(s); | |
| 678 return; | |
| 679 } | |
| 680 | |
| 884 | 681 peer = ngx_pcalloc(s->connection->pool, sizeof(ngx_peer_addr_t)); |
| 682 if (peer == NULL) { | |
| 547 | 683 ngx_destroy_pool(ctx->pool); |
| 527 | 684 ngx_imap_session_internal_server_error(s); |
| 685 return; | |
| 686 } | |
| 687 | |
| 688 sin = ngx_pcalloc(s->connection->pool, sizeof(struct sockaddr_in)); | |
| 689 if (sin == NULL) { | |
| 547 | 690 ngx_destroy_pool(ctx->pool); |
| 527 | 691 ngx_imap_session_internal_server_error(s); |
| 692 return; | |
| 693 } | |
| 694 | |
| 695 sin->sin_family = AF_INET; | |
| 696 | |
| 697 port = ngx_atoi(ctx->port.data, ctx->port.len); | |
| 698 if (port == NGX_ERROR || port < 1 || port > 65536) { | |
| 699 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 541 | 700 "auth http server %V sent invalid server " |
| 701 "port:\"%V\"", | |
| 884 | 702 ctx->peer.name, &ctx->port); |
| 547 | 703 ngx_destroy_pool(ctx->pool); |
| 527 | 704 ngx_imap_session_internal_server_error(s); |
| 705 return; | |
| 706 } | |
| 707 | |
| 708 sin->sin_port = htons((in_port_t) port); | |
| 709 | |
| 710 ctx->addr.data[ctx->addr.len] = '\0'; | |
| 711 sin->sin_addr.s_addr = inet_addr((char *) ctx->addr.data); | |
| 712 if (sin->sin_addr.s_addr == INADDR_NONE) { | |
| 713 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 541 | 714 "auth http server %V sent invalid server " |
| 715 "address:\"%V\"", | |
| 884 | 716 ctx->peer.name, &ctx->addr); |
| 547 | 717 ngx_destroy_pool(ctx->pool); |
| 527 | 718 ngx_imap_session_internal_server_error(s); |
| 719 return; | |
| 720 } | |
| 721 | |
| 884 | 722 peer->sockaddr = (struct sockaddr *) sin; |
| 723 peer->socklen = sizeof(struct sockaddr_in); | |
| 527 | 724 |
| 725 len = ctx->addr.len + 1 + ctx->port.len; | |
| 726 | |
| 884 | 727 peer->name.len = len; |
| 527 | 728 |
| 884 | 729 peer->name.data = ngx_palloc(s->connection->pool, len); |
| 730 if (peer->name.data == NULL) { | |
| 547 | 731 ngx_destroy_pool(ctx->pool); |
| 527 | 732 ngx_imap_session_internal_server_error(s); |
| 733 return; | |
| 734 } | |
| 735 | |
| 736 len = ctx->addr.len; | |
| 737 | |
| 884 | 738 ngx_memcpy(peer->name.data, ctx->addr.data, len); |
| 527 | 739 |
| 884 | 740 peer->name.data[len++] = ':'; |
| 527 | 741 |
| 884 | 742 ngx_memcpy(peer->name.data + len, ctx->port.data, ctx->port.len); |
| 527 | 743 |
| 547 | 744 ngx_destroy_pool(ctx->pool); |
| 884 | 745 ngx_imap_proxy_init(s, peer); |
| 527 | 746 |
| 747 return; | |
| 748 } | |
| 749 | |
| 750 if (rc == NGX_AGAIN ) { | |
| 751 return; | |
| 752 } | |
| 753 | |
| 754 /* rc == NGX_ERROR */ | |
| 755 | |
| 756 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 541 | 757 "auth http server %V sent invalid header in response", |
| 884 | 758 ctx->peer.name); |
| 527 | 759 ngx_close_connection(ctx->peer.connection); |
| 547 | 760 ngx_destroy_pool(ctx->pool); |
| 527 | 761 ngx_imap_session_internal_server_error(s); |
| 762 | |
| 763 return; | |
| 764 } | |
| 765 } | |
| 766 | |
| 521 | 767 |
| 527 | 768 static void |
| 769 ngx_imap_auth_sleep_handler(ngx_event_t *rev) | |
| 770 { | |
| 543 | 771 ngx_connection_t *c; |
| 772 ngx_imap_session_t *s; | |
| 773 ngx_imap_core_srv_conf_t *cscf; | |
| 527 | 774 |
| 775 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap auth sleep handler"); | |
| 776 | |
| 777 c = rev->data; | |
| 778 s = c->data; | |
| 779 | |
| 780 if (rev->timedout) { | |
| 781 | |
| 782 rev->timedout = 0; | |
| 783 | |
| 883 | 784 if (s->auth_wait) { |
| 785 s->auth_wait = 0; | |
| 786 ngx_imap_auth_http_init(s); | |
| 787 return; | |
| 788 } | |
| 789 | |
| 527 | 790 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { |
| 791 s->imap_state = ngx_pop3_start; | |
| 792 s->connection->read->handler = ngx_pop3_auth_state; | |
| 793 | |
| 794 } else { | |
| 795 s->imap_state = ngx_imap_start; | |
| 796 s->connection->read->handler = ngx_imap_auth_state; | |
| 797 } | |
| 798 | |
| 800 | 799 s->auth_method = NGX_IMAP_AUTH_PLAIN; |
| 800 | |
| 543 | 801 c->log->action = "in auth state"; |
| 802 | |
| 803 ngx_imap_send(s->connection->write); | |
| 804 | |
| 583 | 805 if (c->destroyed) { |
| 543 | 806 return; |
| 807 } | |
| 808 | |
| 809 cscf = ngx_imap_get_module_srv_conf(s, ngx_imap_core_module); | |
| 810 | |
| 811 ngx_add_timer(rev, cscf->timeout); | |
| 812 | |
| 527 | 813 if (rev->ready) { |
| 814 s->connection->read->handler(rev); | |
| 815 return; | |
| 816 } | |
| 817 | |
| 818 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 819 ngx_imap_close_connection(s->connection); | |
| 820 } | |
| 821 | |
| 822 return; | |
| 823 } | |
| 824 | |
| 825 if (rev->active) { | |
| 826 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 827 ngx_imap_close_connection(s->connection); | |
| 828 } | |
| 829 } | |
| 830 } | |
| 831 | |
| 832 | |
| 833 static ngx_int_t | |
| 834 ngx_imap_auth_http_parse_header_line(ngx_imap_session_t *s, | |
| 835 ngx_imap_auth_http_ctx_t *ctx) | |
| 836 { | |
| 837 u_char c, ch, *p; | |
| 838 ngx_uint_t hash; | |
| 839 enum { | |
| 840 sw_start = 0, | |
| 841 sw_name, | |
| 842 sw_space_before_value, | |
| 843 sw_value, | |
| 844 sw_space_after_value, | |
| 577 | 845 sw_almost_done, |
| 527 | 846 sw_header_almost_done |
| 847 } state; | |
| 848 | |
| 577 | 849 state = ctx->state; |
| 527 | 850 hash = ctx->hash; |
| 851 | |
| 852 for (p = ctx->response->pos; p < ctx->response->last; p++) { | |
| 853 ch = *p; | |
| 854 | |
| 855 switch (state) { | |
| 856 | |
| 857 /* first char */ | |
| 858 case sw_start: | |
| 859 | |
| 860 switch (ch) { | |
| 861 case CR: | |
| 577 | 862 ctx->header_end = p; |
| 527 | 863 state = sw_header_almost_done; |
| 864 break; | |
| 577 | 865 case LF: |
| 527 | 866 ctx->header_end = p; |
| 867 goto header_done; | |
| 868 default: | |
| 869 state = sw_name; | |
| 870 ctx->header_name_start = p; | |
| 871 | |
| 872 c = (u_char) (ch | 0x20); | |
| 873 if (c >= 'a' && c <= 'z') { | |
| 874 hash = c; | |
| 875 break; | |
| 876 } | |
| 877 | |
| 878 if (ch >= '0' && ch <= '9') { | |
| 879 hash = ch; | |
| 880 break; | |
| 881 } | |
| 882 | |
| 883 return NGX_ERROR; | |
| 884 } | |
| 885 break; | |
| 886 | |
| 887 /* header name */ | |
| 888 case sw_name: | |
| 889 c = (u_char) (ch | 0x20); | |
| 890 if (c >= 'a' && c <= 'z') { | |
| 891 hash += c; | |
| 892 break; | |
| 893 } | |
| 894 | |
| 895 if (ch == ':') { | |
| 896 ctx->header_name_end = p; | |
| 897 state = sw_space_before_value; | |
| 898 break; | |
| 899 } | |
| 900 | |
| 901 if (ch == '-') { | |
| 902 hash += ch; | |
| 903 break; | |
| 904 } | |
| 905 | |
| 906 if (ch >= '0' && ch <= '9') { | |
| 907 hash += ch; | |
| 908 break; | |
| 909 } | |
| 910 | |
| 911 if (ch == CR) { | |
| 912 ctx->header_name_end = p; | |
| 913 ctx->header_start = p; | |
| 914 ctx->header_end = p; | |
| 915 state = sw_almost_done; | |
| 916 break; | |
| 917 } | |
| 918 | |
| 919 if (ch == LF) { | |
| 920 ctx->header_name_end = p; | |
| 921 ctx->header_start = p; | |
| 922 ctx->header_end = p; | |
| 923 goto done; | |
| 924 } | |
| 925 | |
| 926 return NGX_ERROR; | |
| 927 | |
| 928 /* space* before header value */ | |
| 929 case sw_space_before_value: | |
| 930 switch (ch) { | |
| 931 case ' ': | |
| 932 break; | |
| 933 case CR: | |
| 934 ctx->header_start = p; | |
| 935 ctx->header_end = p; | |
| 936 state = sw_almost_done; | |
| 937 break; | |
| 938 case LF: | |
| 939 ctx->header_start = p; | |
| 940 ctx->header_end = p; | |
| 941 goto done; | |
| 942 default: | |
| 943 ctx->header_start = p; | |
| 944 state = sw_value; | |
| 945 break; | |
| 946 } | |
| 947 break; | |
| 948 | |
| 949 /* header value */ | |
| 950 case sw_value: | |
| 951 switch (ch) { | |
| 952 case ' ': | |
| 953 ctx->header_end = p; | |
| 954 state = sw_space_after_value; | |
| 955 break; | |
| 956 case CR: | |
| 957 ctx->header_end = p; | |
| 958 state = sw_almost_done; | |
| 959 break; | |
| 960 case LF: | |
| 961 ctx->header_end = p; | |
| 962 goto done; | |
| 963 } | |
| 964 break; | |
| 965 | |
| 966 /* space* before end of header line */ | |
| 967 case sw_space_after_value: | |
| 968 switch (ch) { | |
| 969 case ' ': | |
| 970 break; | |
| 971 case CR: | |
| 972 state = sw_almost_done; | |
| 973 break; | |
| 974 case LF: | |
| 975 goto done; | |
| 976 default: | |
| 977 state = sw_value; | |
| 978 break; | |
| 979 } | |
| 980 break; | |
| 981 | |
| 982 /* end of header line */ | |
| 983 case sw_almost_done: | |
| 984 switch (ch) { | |
| 985 case LF: | |
| 986 goto done; | |
| 987 default: | |
| 988 return NGX_ERROR; | |
| 989 } | |
| 990 | |
| 991 /* end of header */ | |
| 992 case sw_header_almost_done: | |
| 993 switch (ch) { | |
| 994 case LF: | |
| 995 goto header_done; | |
| 996 default: | |
| 997 return NGX_ERROR; | |
| 998 } | |
| 999 } | |
| 1000 } | |
| 1001 | |
| 1002 ctx->response->pos = p; | |
| 1003 ctx->state = state; | |
| 1004 ctx->hash = hash; | |
| 1005 | |
| 1006 return NGX_AGAIN; | |
| 1007 | |
| 1008 done: | |
| 1009 | |
| 1010 ctx->response->pos = p + 1; | |
| 1011 ctx->state = sw_start; | |
| 1012 ctx->hash = hash; | |
| 1013 | |
| 1014 return NGX_OK; | |
| 1015 | |
| 1016 header_done: | |
| 1017 | |
| 1018 ctx->response->pos = p + 1; | |
| 1019 ctx->state = sw_start; | |
| 1020 | |
| 1021 return NGX_DONE; | |
| 521 | 1022 } |
| 1023 | |
| 1024 | |
| 1025 static void | |
| 1026 ngx_imap_auth_http_block_read(ngx_event_t *rev) | |
| 1027 { | |
| 1028 ngx_connection_t *c; | |
| 1029 ngx_imap_session_t *s; | |
| 1030 ngx_imap_auth_http_ctx_t *ctx; | |
| 1031 | |
| 1032 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
| 1033 "imap auth http block read"); | |
| 1034 | |
| 1035 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 1036 c = rev->data; | |
| 1037 s = c->data; | |
| 1038 | |
| 1039 ctx = ngx_imap_get_module_ctx(s, ngx_imap_auth_http_module); | |
| 1040 | |
| 525 | 1041 ngx_close_connection(ctx->peer.connection); |
| 547 | 1042 ngx_destroy_pool(ctx->pool); |
| 525 | 1043 ngx_imap_session_internal_server_error(s); |
| 521 | 1044 } |
| 1045 } | |
| 1046 | |
| 1047 | |
| 1048 static void | |
| 1049 ngx_imap_auth_http_dummy_handler(ngx_event_t *ev) | |
| 1050 { | |
| 1051 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, ev->log, 0, | |
| 1052 "imap auth http dummy handler"); | |
| 1053 } | |
| 1054 | |
| 1055 | |
| 1056 static ngx_buf_t * | |
| 547 | 1057 ngx_imap_auth_http_create_request(ngx_imap_session_t *s, ngx_pool_t *pool, |
| 521 | 1058 ngx_imap_auth_http_conf_t *ahcf) |
| 1059 { | |
| 1060 size_t len; | |
| 1061 ngx_buf_t *b; | |
| 633 | 1062 ngx_str_t login, passwd; |
| 1063 | |
| 1064 if (ngx_imap_auth_http_escape(pool, &s->login, &login) != NGX_OK) { | |
| 1065 return NULL; | |
| 1066 } | |
| 1067 | |
| 1068 if (ngx_imap_auth_http_escape(pool, &s->passwd, &passwd) != NGX_OK) { | |
| 1069 return NULL; | |
| 1070 } | |
| 521 | 1071 |
| 1072 len = sizeof("GET ") - 1 + ahcf->uri.len + sizeof(" HTTP/1.0" CRLF) - 1 | |
| 1073 + sizeof("Host: ") - 1 + ahcf->host_header.len + sizeof(CRLF) - 1 | |
|
856
0197d6aae54e
use correct auth method length
Igor Sysoev <igor@sysoev.ru>
parents:
854
diff
changeset
|
1074 + sizeof("Auth-Method: ") - 1 |
|
0197d6aae54e
use correct auth method length
Igor Sysoev <igor@sysoev.ru>
parents:
854
diff
changeset
|
1075 + ngx_imap_auth_http_method[s->auth_method].len |
|
0197d6aae54e
use correct auth method length
Igor Sysoev <igor@sysoev.ru>
parents:
854
diff
changeset
|
1076 + sizeof(CRLF) - 1 |
| 633 | 1077 + sizeof("Auth-User: ") - 1 + login.len + sizeof(CRLF) - 1 |
| 1078 + sizeof("Auth-Pass: ") - 1 + passwd.len + sizeof(CRLF) - 1 | |
| 800 | 1079 + sizeof("Auth-Salt: ") - 1 + s->salt.len |
| 521 | 1080 + sizeof("Auth-Protocol: imap" CRLF) - 1 |
| 527 | 1081 + sizeof("Auth-Login-Attempt: ") - 1 + NGX_INT_T_LEN |
| 1082 + sizeof(CRLF) - 1 | |
| 521 | 1083 + sizeof("Client-IP: ") - 1 + s->connection->addr_text.len |
| 1084 + sizeof(CRLF) - 1 | |
| 1085 + sizeof(CRLF) - 1; | |
| 1086 | |
| 547 | 1087 b = ngx_create_temp_buf(pool, len); |
| 521 | 1088 if (b == NULL) { |
| 1089 return NULL; | |
| 1090 } | |
| 1091 | |
| 1092 b->last = ngx_cpymem(b->last, "GET ", sizeof("GET ") - 1); | |
| 573 | 1093 b->last = ngx_copy(b->last, ahcf->uri.data, ahcf->uri.len); |
| 521 | 1094 b->last = ngx_cpymem(b->last, " HTTP/1.0" CRLF, |
| 1095 sizeof(" HTTP/1.0" CRLF) - 1); | |
| 1096 | |
| 1097 b->last = ngx_cpymem(b->last, "Host: ", sizeof("Host: ") - 1); | |
| 573 | 1098 b->last = ngx_copy(b->last, ahcf->host_header.data, |
| 521 | 1099 ahcf->host_header.len); |
| 1100 *b->last++ = CR; *b->last++ = LF; | |
| 1101 | |
| 800 | 1102 b->last = ngx_cpymem(b->last, "Auth-Method: ", |
| 1103 sizeof("Auth-Method: ") - 1); | |
| 1104 b->last = ngx_cpymem(b->last, | |
| 1105 ngx_imap_auth_http_method[s->auth_method].data, | |
| 1106 ngx_imap_auth_http_method[s->auth_method].len); | |
| 1107 *b->last++ = CR; *b->last++ = LF; | |
| 521 | 1108 |
| 1109 b->last = ngx_cpymem(b->last, "Auth-User: ", sizeof("Auth-User: ") - 1); | |
| 633 | 1110 b->last = ngx_copy(b->last, login.data, login.len); |
| 521 | 1111 *b->last++ = CR; *b->last++ = LF; |
| 1112 | |
| 1113 b->last = ngx_cpymem(b->last, "Auth-Pass: ", sizeof("Auth-Pass: ") - 1); | |
| 633 | 1114 b->last = ngx_copy(b->last, passwd.data, passwd.len); |
| 521 | 1115 *b->last++ = CR; *b->last++ = LF; |
| 1116 | |
| 809 | 1117 if (s->auth_method != NGX_IMAP_AUTH_PLAIN && s->salt.len) { |
| 800 | 1118 b->last = ngx_cpymem(b->last, "Auth-Salt: ", sizeof("Auth-Salt: ") - 1); |
| 1119 b->last = ngx_copy(b->last, s->salt.data, s->salt.len); | |
| 1120 | |
| 1121 s->passwd.data = NULL; | |
| 1122 } | |
| 1123 | |
| 521 | 1124 b->last = ngx_cpymem(b->last, "Auth-Protocol: ", |
| 1125 sizeof("Auth-Protocol: ") - 1); | |
| 1126 b->last = ngx_cpymem(b->last, ngx_imap_auth_http_protocol[s->protocol], | |
| 1127 sizeof("imap") - 1); | |
| 1128 *b->last++ = CR; *b->last++ = LF; | |
| 1129 | |
| 527 | 1130 b->last = ngx_sprintf(b->last, "Auth-Login-Attempt: %ui" CRLF, |
| 1131 s->login_attempt); | |
| 1132 | |
| 521 | 1133 b->last = ngx_cpymem(b->last, "Client-IP: ", sizeof("Client-IP: ") - 1); |
| 573 | 1134 b->last = ngx_copy(b->last, s->connection->addr_text.data, |
| 521 | 1135 s->connection->addr_text.len); |
| 1136 *b->last++ = CR; *b->last++ = LF; | |
| 1137 | |
| 573 | 1138 if (ahcf->header.len) { |
| 1139 b->last = ngx_copy(b->last, ahcf->header.data, ahcf->header.len); | |
| 1140 } | |
| 1141 | |
| 521 | 1142 /* add "\r\n" at the header end */ |
| 1143 *b->last++ = CR; *b->last++ = LF; | |
| 1144 | |
| 547 | 1145 #if (NGX_DEBUG_IMAP_PASSWD) |
| 521 | 1146 { |
| 1147 ngx_str_t l; | |
| 1148 | |
| 1149 l.len = b->last - b->pos; | |
| 1150 l.data = b->pos; | |
| 527 | 1151 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, |
| 521 | 1152 "imap auth http header:\n\"%V\"", &l); |
| 1153 } | |
| 1154 #endif | |
| 1155 | |
| 1156 return b; | |
| 1157 } | |
| 1158 | |
| 1159 | |
| 633 | 1160 static ngx_int_t |
| 1161 ngx_imap_auth_http_escape(ngx_pool_t *pool, ngx_str_t *text, ngx_str_t *escaped) | |
| 1162 { | |
| 1163 u_char ch, *p; | |
| 1164 ngx_uint_t i, n; | |
| 1165 | |
| 1166 n = 0; | |
| 1167 | |
| 1168 for (i = 0; i < text->len; i++) { | |
| 1169 ch = text->data[i]; | |
| 1170 | |
| 1171 if (ch == CR || ch == LF) { | |
| 1172 n++; | |
| 1173 } | |
| 1174 } | |
| 1175 | |
| 1176 if (n == 0) { | |
| 1177 *escaped = *text; | |
| 1178 return NGX_OK; | |
| 1179 } | |
| 1180 | |
| 1181 escaped->len = text->len + n * 2; | |
| 1182 | |
| 1183 p = ngx_palloc(pool, escaped->len); | |
| 1184 if (p == NULL) { | |
| 1185 return NGX_ERROR; | |
| 1186 } | |
| 1187 | |
| 1188 escaped->data = p; | |
| 1189 | |
| 1190 for (i = 0; i < text->len; i++) { | |
| 1191 ch = text->data[i]; | |
| 1192 | |
| 1193 if (ch == CR) { | |
| 1194 *p++ = '%'; | |
| 1195 *p++ = '0'; | |
| 1196 *p++ = 'D'; | |
| 1197 continue; | |
| 1198 } | |
| 1199 | |
| 1200 if (ch == LF) { | |
| 1201 *p++ = '%'; | |
| 1202 *p++ = '0'; | |
| 1203 *p++ = 'A'; | |
| 1204 continue; | |
| 1205 } | |
| 1206 | |
| 1207 *p++ = ch; | |
| 1208 } | |
| 1209 | |
| 1210 return NGX_OK; | |
| 1211 } | |
| 1212 | |
| 1213 | |
| 521 | 1214 static void * |
| 1215 ngx_imap_auth_http_create_conf(ngx_conf_t *cf) | |
| 577 | 1216 { |
| 521 | 1217 ngx_imap_auth_http_conf_t *ahcf; |
| 577 | 1218 |
| 521 | 1219 ahcf = ngx_pcalloc(cf->pool, sizeof(ngx_imap_auth_http_conf_t)); |
| 1220 if (ahcf == NULL) { | |
| 1221 return NGX_CONF_ERROR; | |
| 1222 } | |
| 1223 | |
| 1224 ahcf->timeout = NGX_CONF_UNSET_MSEC; | |
| 1225 | |
| 1226 return ahcf; | |
| 1227 } | |
| 1228 | |
| 1229 | |
| 1230 static char * | |
| 1231 ngx_imap_auth_http_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 1232 { | |
| 1233 ngx_imap_auth_http_conf_t *prev = parent; | |
| 1234 ngx_imap_auth_http_conf_t *conf = child; | |
| 1235 | |
| 573 | 1236 u_char *p; |
| 1237 size_t len; | |
| 1238 ngx_uint_t i; | |
| 1239 ngx_table_elt_t *header; | |
| 1240 | |
| 884 | 1241 if (conf->peer == NULL) { |
| 1242 conf->peer = prev->peer; | |
| 521 | 1243 conf->host_header = prev->host_header; |
| 1244 conf->uri = prev->uri; | |
| 1245 } | |
| 1246 | |
| 1247 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000); | |
| 1248 | |
| 573 | 1249 if (conf->headers == NULL) { |
| 1250 conf->headers = prev->headers; | |
| 1251 conf->header = prev->header; | |
| 1252 } | |
| 1253 | |
| 1254 if (conf->headers && conf->header.len == 0) { | |
| 1255 len = 0; | |
| 1256 header = conf->headers->elts; | |
| 1257 for (i = 0; i < conf->headers->nelts; i++) { | |
| 1258 len += header[i].key.len + 2 + header[i].value.len + 2; | |
| 1259 } | |
| 1260 | |
| 1261 p = ngx_palloc(cf->pool, len); | |
| 1262 if (p == NULL) { | |
| 1263 return NGX_CONF_ERROR; | |
| 1264 } | |
| 1265 | |
| 1266 conf->header.len = len; | |
| 1267 conf->header.data = p; | |
| 1268 | |
| 1269 for (i = 0; i < conf->headers->nelts; i++) { | |
| 1270 p = ngx_cpymem(p, header[i].key.data, header[i].key.len); | |
| 1271 *p++ = ':'; *p++ = ' '; | |
| 1272 p = ngx_cpymem(p, header[i].value.data, header[i].value.len); | |
| 1273 *p++ = CR; *p++ = LF; | |
| 1274 } | |
| 1275 } | |
| 1276 | |
| 521 | 1277 return NGX_CONF_OK; |
| 1278 } | |
| 1279 | |
| 1280 | |
| 1281 static char * | |
| 1282 ngx_imap_auth_http(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 577 | 1283 { |
| 521 | 1284 ngx_imap_auth_http_conf_t *ahcf = conf; |
| 1285 | |
|
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1286 ngx_str_t *value; |
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1287 ngx_url_t u; |
| 573 | 1288 |
| 521 | 1289 value = cf->args->elts; |
| 1290 | |
|
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1291 ngx_memzero(&u, sizeof(ngx_url_t)); |
| 521 | 1292 |
|
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1293 u.url = value[1]; |
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1294 u.default_portn = 80; |
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1295 u.uri_part = 1; |
| 884 | 1296 u.one_addr = 1; |
| 577 | 1297 |
|
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1298 if (ngx_parse_url(cf, &u) != NGX_OK) { |
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1299 if (u.err) { |
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1300 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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1301 "%s in auth_http \"%V\"", u.err, &u.url); |
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1302 } |
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1303 } |
| 521 | 1304 |
| 884 | 1305 ahcf->peer = u.addrs; |
| 521 | 1306 |
|
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1307 ahcf->host_header = u.host_header; |
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1308 ahcf->uri = u.uri; |
| 521 | 1309 |
| 559 | 1310 if (ahcf->uri.len == 0) { |
| 555 | 1311 ahcf->uri.len = sizeof("/") - 1; |
| 1312 ahcf->uri.data = (u_char *) "/"; | |
| 1313 } | |
| 1314 | |
| 521 | 1315 return NGX_CONF_OK; |
| 1316 } | |
| 573 | 1317 |
| 1318 | |
| 1319 static char * | |
| 1320 ngx_imap_auth_http_header(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 577 | 1321 { |
| 573 | 1322 ngx_imap_auth_http_conf_t *ahcf = conf; |
| 1323 | |
| 1324 ngx_str_t *value; | |
| 1325 ngx_table_elt_t *header; | |
| 1326 | |
| 1327 if (ahcf->headers == NULL) { | |
| 1328 ahcf->headers = ngx_array_create(cf->pool, 1, sizeof(ngx_table_elt_t)); | |
| 1329 if (ahcf->headers == NULL) { | |
| 1330 return NGX_CONF_ERROR; | |
| 1331 } | |
| 1332 } | |
| 1333 | |
| 1334 header = ngx_array_push(ahcf->headers); | |
| 1335 if (header == NULL) { | |
| 1336 return NGX_CONF_ERROR; | |
| 1337 } | |
| 1338 | |
| 1339 value = cf->args->elts; | |
| 1340 | |
| 1341 header->key = value[1]; | |
| 1342 header->value = value[2]; | |
| 1343 | |
| 1344 return NGX_CONF_OK; | |
| 1345 } |