Mercurial > hg > nginx
annotate src/imap/ngx_imap_auth_http_module.c @ 809:da9c1521319d
AUTH PLAIN LOGIN CRAM-MD5
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Tue, 24 Oct 2006 18:38:31 +0000 |
| parents | 8ee450f30c25 |
| children | 1673f197bc62 |
| 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 { | |
| 527 | 15 ngx_peers_t *peers; |
| 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 | |
| 178 ctx->peer.peers = ahcf->peers; | |
| 179 ctx->peer.log = s->connection->log; | |
| 180 ctx->peer.log_error = NGX_ERROR_ERR; | |
| 181 | |
| 182 rc = ngx_event_connect_peer(&ctx->peer); | |
| 183 | |
| 543 | 184 if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) { |
| 185 ngx_close_connection(ctx->peer.connection); | |
| 547 | 186 ngx_destroy_pool(ctx->pool); |
| 525 | 187 ngx_imap_session_internal_server_error(s); |
| 521 | 188 return; |
| 189 } | |
| 190 | |
| 191 ctx->peer.connection->data = s; | |
| 192 ctx->peer.connection->pool = s->connection->pool; | |
| 193 | |
| 194 s->connection->read->handler = ngx_imap_auth_http_block_read; | |
| 195 ctx->peer.connection->read->handler = ngx_imap_auth_http_read_handler; | |
| 196 ctx->peer.connection->write->handler = ngx_imap_auth_http_write_handler; | |
| 197 | |
| 527 | 198 ctx->handler = ngx_imap_auth_http_ignore_status_line; |
| 199 | |
| 541 | 200 ngx_add_timer(ctx->peer.connection->read, ahcf->timeout); |
| 201 ngx_add_timer(ctx->peer.connection->write, ahcf->timeout); | |
| 202 | |
| 521 | 203 if (rc == NGX_OK) { |
| 204 ngx_imap_auth_http_write_handler(ctx->peer.connection->write); | |
| 205 return; | |
| 206 } | |
| 207 } | |
| 208 | |
| 209 | |
| 210 static void | |
| 211 ngx_imap_auth_http_write_handler(ngx_event_t *wev) | |
| 212 { | |
| 213 ssize_t n, size; | |
| 214 ngx_connection_t *c; | |
| 215 ngx_imap_session_t *s; | |
| 216 ngx_imap_auth_http_ctx_t *ctx; | |
| 217 ngx_imap_auth_http_conf_t *ahcf; | |
| 218 | |
| 219 c = wev->data; | |
| 220 s = c->data; | |
| 221 | |
| 222 ctx = ngx_imap_get_module_ctx(s, ngx_imap_auth_http_module); | |
| 223 | |
| 224 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, wev->log, 0, | |
| 225 "imap auth http write handler"); | |
| 226 | |
| 577 | 227 if (wev->timedout) { |
| 521 | 228 ngx_log_error(NGX_LOG_ERR, wev->log, NGX_ETIMEDOUT, |
| 541 | 229 "auth http server %V timed out", |
| 230 &ctx->peer.peers->peer[0].name); | |
| 525 | 231 ngx_close_connection(ctx->peer.connection); |
| 547 | 232 ngx_destroy_pool(ctx->pool); |
| 525 | 233 ngx_imap_session_internal_server_error(s); |
| 521 | 234 return; |
| 235 } | |
| 236 | |
| 237 size = ctx->request->last - ctx->request->pos; | |
| 238 | |
| 239 n = ngx_send(c, ctx->request->pos, size); | |
| 240 | |
| 241 if (n == NGX_ERROR) { | |
| 525 | 242 ngx_close_connection(ctx->peer.connection); |
| 547 | 243 ngx_destroy_pool(ctx->pool); |
| 525 | 244 ngx_imap_session_internal_server_error(s); |
| 521 | 245 return; |
| 246 } | |
| 247 | |
| 248 if (n > 0) { | |
| 249 ctx->request->pos += n; | |
| 250 | |
| 251 if (n == size) { | |
| 252 wev->handler = ngx_imap_auth_http_dummy_handler; | |
| 253 | |
| 254 if (wev->timer_set) { | |
| 255 ngx_del_timer(wev); | |
| 256 } | |
| 257 | |
|
799
9737d6fb1ac6
disable write level event while waiting auth server response
Igor Sysoev <igor@sysoev.ru>
parents:
633
diff
changeset
|
258 if (ngx_handle_write_event(wev, 0) == NGX_ERROR) { |
|
9737d6fb1ac6
disable write level event while waiting auth server response
Igor Sysoev <igor@sysoev.ru>
parents:
633
diff
changeset
|
259 ngx_close_connection(ctx->peer.connection); |
|
9737d6fb1ac6
disable write level event while waiting auth server response
Igor Sysoev <igor@sysoev.ru>
parents:
633
diff
changeset
|
260 ngx_destroy_pool(ctx->pool); |
|
9737d6fb1ac6
disable write level event while waiting auth server response
Igor Sysoev <igor@sysoev.ru>
parents:
633
diff
changeset
|
261 ngx_imap_session_internal_server_error(s); |
|
9737d6fb1ac6
disable write level event while waiting auth server response
Igor Sysoev <igor@sysoev.ru>
parents:
633
diff
changeset
|
262 } |
|
9737d6fb1ac6
disable write level event while waiting auth server response
Igor Sysoev <igor@sysoev.ru>
parents:
633
diff
changeset
|
263 |
| 521 | 264 return; |
| 265 } | |
| 266 } | |
| 267 | |
| 268 if (!wev->timer_set) { | |
| 269 ahcf = ngx_imap_get_module_srv_conf(s, ngx_imap_auth_http_module); | |
| 270 ngx_add_timer(wev, ahcf->timeout); | |
| 271 } | |
| 272 } | |
| 273 | |
| 274 | |
| 275 static void | |
| 276 ngx_imap_auth_http_read_handler(ngx_event_t *rev) | |
| 277 { | |
| 525 | 278 ssize_t n, size; |
| 521 | 279 ngx_connection_t *c; |
| 280 ngx_imap_session_t *s; | |
| 281 ngx_imap_auth_http_ctx_t *ctx; | |
| 282 | |
| 283 c = rev->data; | |
| 284 s = c->data; | |
| 285 | |
| 286 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
| 287 "imap auth http read handler"); | |
| 288 | |
| 525 | 289 ctx = ngx_imap_get_module_ctx(s, ngx_imap_auth_http_module); |
| 290 | |
| 577 | 291 if (rev->timedout) { |
| 525 | 292 ngx_log_error(NGX_LOG_ERR, rev->log, NGX_ETIMEDOUT, |
| 541 | 293 "auth http server %V timed out", |
| 294 &ctx->peer.peers->peer[0].name); | |
| 525 | 295 ngx_close_connection(ctx->peer.connection); |
| 547 | 296 ngx_destroy_pool(ctx->pool); |
| 525 | 297 ngx_imap_session_internal_server_error(s); |
| 298 return; | |
| 299 } | |
| 300 | |
| 301 if (ctx->response == NULL) { | |
| 547 | 302 ctx->response = ngx_create_temp_buf(ctx->pool, 1024); |
| 525 | 303 if (ctx->response == NULL) { |
| 304 ngx_close_connection(ctx->peer.connection); | |
| 547 | 305 ngx_destroy_pool(ctx->pool); |
| 525 | 306 ngx_imap_session_internal_server_error(s); |
| 307 return; | |
| 308 } | |
| 309 } | |
| 310 | |
| 527 | 311 size = ctx->response->end - ctx->response->last; |
| 525 | 312 |
| 313 n = ngx_recv(c, ctx->response->pos, size); | |
| 314 | |
| 527 | 315 if (n > 0) { |
| 316 ctx->response->last += n; | |
| 317 | |
| 318 ctx->handler(s, ctx); | |
| 319 return; | |
| 320 } | |
| 321 | |
| 322 if (n == NGX_AGAIN) { | |
| 525 | 323 return; |
| 324 } | |
| 325 | |
| 527 | 326 ngx_close_connection(ctx->peer.connection); |
| 547 | 327 ngx_destroy_pool(ctx->pool); |
| 527 | 328 ngx_imap_session_internal_server_error(s); |
| 329 } | |
| 525 | 330 |
| 331 | |
| 527 | 332 static void |
| 333 ngx_imap_auth_http_ignore_status_line(ngx_imap_session_t *s, | |
| 334 ngx_imap_auth_http_ctx_t *ctx) | |
| 335 { | |
| 336 u_char *p, ch; | |
| 337 enum { | |
| 338 sw_start = 0, | |
| 339 sw_H, | |
| 340 sw_HT, | |
| 341 sw_HTT, | |
| 342 sw_HTTP, | |
| 343 sw_skip, | |
| 344 sw_almost_done | |
| 345 } state; | |
| 346 | |
| 347 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
| 348 "imap auth http process status line"); | |
| 349 | |
| 350 state = ctx->state; | |
| 351 | |
| 352 for (p = ctx->response->pos; p < ctx->response->last; p++) { | |
| 353 ch = *p; | |
| 354 | |
| 355 switch (state) { | |
| 356 | |
| 357 /* "HTTP/" */ | |
| 358 case sw_start: | |
| 359 if (ch == 'H') { | |
| 360 state = sw_H; | |
| 361 break; | |
| 362 } | |
| 363 goto next; | |
| 364 | |
| 365 case sw_H: | |
| 366 if (ch == 'T') { | |
| 367 state = sw_HT; | |
| 368 break; | |
| 369 } | |
| 370 goto next; | |
| 371 | |
| 372 case sw_HT: | |
| 373 if (ch == 'T') { | |
| 374 state = sw_HTT; | |
| 375 break; | |
| 376 } | |
| 377 goto next; | |
| 378 | |
| 379 case sw_HTT: | |
| 380 if (ch == 'P') { | |
| 381 state = sw_HTTP; | |
| 382 break; | |
| 383 } | |
| 384 goto next; | |
| 385 | |
| 386 case sw_HTTP: | |
| 387 if (ch == '/') { | |
| 388 state = sw_skip; | |
| 389 break; | |
| 390 } | |
| 391 goto next; | |
| 392 | |
| 393 /* any text until end of line */ | |
| 394 case sw_skip: | |
| 395 switch (ch) { | |
| 396 case CR: | |
| 397 state = sw_almost_done; | |
| 398 | |
| 399 break; | |
| 577 | 400 case LF: |
| 527 | 401 goto done; |
| 402 } | |
| 403 break; | |
| 404 | |
| 405 /* end of status line */ | |
| 406 case sw_almost_done: | |
| 407 if (ch == LF) { | |
| 408 goto done; | |
| 409 } | |
| 410 | |
| 411 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 541 | 412 "auth http server &V sent invalid response", |
| 413 &ctx->peer.peers->peer[0].name); | |
| 527 | 414 ngx_close_connection(ctx->peer.connection); |
| 547 | 415 ngx_destroy_pool(ctx->pool); |
| 527 | 416 ngx_imap_session_internal_server_error(s); |
| 417 return; | |
| 418 } | |
| 419 } | |
| 420 | |
| 421 ctx->response->pos = p; | |
| 422 ctx->state = state; | |
| 423 | |
| 424 return; | |
| 425 | |
| 426 next: | |
| 427 | |
| 428 p = ctx->response->start - 1; | |
| 429 | |
| 430 done: | |
| 431 | |
| 432 ctx->response->pos = p + 1; | |
| 433 ctx->state = 0; | |
| 434 ctx->handler = ngx_imap_auth_http_process_headers; | |
| 435 ctx->handler(s, ctx); | |
| 436 } | |
| 525 | 437 |
| 438 | |
| 527 | 439 static void |
| 440 ngx_imap_auth_http_process_headers(ngx_imap_session_t *s, | |
| 441 ngx_imap_auth_http_ctx_t *ctx) | |
| 442 { | |
| 443 u_char *p; | |
| 547 | 444 time_t timer; |
| 527 | 445 size_t len, size; |
| 446 ngx_int_t rc, port, n; | |
| 547 | 447 ngx_peers_t *peers; |
| 527 | 448 struct sockaddr_in *sin; |
| 525 | 449 |
| 527 | 450 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, |
| 451 "imap auth http process headers"); | |
| 452 | |
| 453 for ( ;; ) { | |
| 454 rc = ngx_imap_auth_http_parse_header_line(s, ctx); | |
| 455 | |
| 456 if (rc == NGX_OK) { | |
| 457 | |
| 458 #if (NGX_DEBUG) | |
| 459 { | |
| 460 ngx_str_t key, value; | |
| 461 | |
| 462 key.len = ctx->header_name_end - ctx->header_name_start; | |
| 463 key.data = ctx->header_name_start; | |
| 464 value.len = ctx->header_end - ctx->header_start; | |
| 465 value.data = ctx->header_start; | |
| 466 | |
| 467 ngx_log_debug2(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
| 468 "auth http header: \"%V: %V\"", | |
| 469 &key, &value); | |
| 470 } | |
| 471 #endif | |
| 472 | |
| 473 len = ctx->header_name_end - ctx->header_name_start; | |
| 474 | |
| 475 if (len == sizeof("Auth-Status") - 1 | |
| 476 && ngx_strncasecmp(ctx->header_name_start, "Auth-Status", | |
| 477 sizeof("Auth-Status") - 1) == 0) | |
| 478 { | |
| 479 len = ctx->header_end - ctx->header_start; | |
| 480 | |
| 481 if (len == 2 | |
| 482 && ctx->header_start[0] == 'O' | |
| 483 && ctx->header_start[1] == 'K') | |
| 484 { | |
| 485 continue; | |
| 486 } | |
| 487 | |
| 567 | 488 ctx->errmsg.len = len; |
| 489 ctx->errmsg.data = ctx->header_start; | |
| 490 | |
| 527 | 491 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { |
| 492 size = sizeof("-ERR") - 1 + len + sizeof(CRLF) - 1; | |
| 493 | |
| 494 } else { | |
| 495 size = s->tag.len + sizeof("NO") - 1 + len | |
| 496 + sizeof(CRLF) - 1; | |
| 497 } | |
| 498 | |
| 499 p = ngx_pcalloc(s->connection->pool, size); | |
| 500 if (p == NULL) { | |
| 543 | 501 ngx_close_connection(ctx->peer.connection); |
| 547 | 502 ngx_destroy_pool(ctx->pool); |
| 527 | 503 ngx_imap_session_internal_server_error(s); |
| 504 return; | |
| 505 } | |
| 506 | |
| 507 ctx->err.data = p; | |
| 508 | |
| 509 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { | |
| 510 *p++ = '-'; *p++ = 'E'; *p++ = 'R'; *p++ = 'R'; | |
| 511 | |
| 512 } else { | |
| 513 p = ngx_cpymem(p, s->tag.data, s->tag.len); | |
| 514 *p++ = 'N'; *p++ = 'O'; | |
| 515 } | |
| 516 | |
| 517 *p++ = ' '; | |
| 567 | 518 |
| 527 | 519 p = ngx_cpymem(p, ctx->header_start, len); |
| 520 *p++ = CR; *p++ = LF; | |
| 521 | |
| 522 ctx->err.len = p - ctx->err.data; | |
| 523 | |
| 524 continue; | |
| 525 } | |
| 526 | |
| 527 if (len == sizeof("Auth-Server") - 1 | |
| 528 && ngx_strncasecmp(ctx->header_name_start, "Auth-Server", | |
| 529 sizeof("Auth-Server") - 1) == 0) | |
| 530 { | |
| 531 ctx->addr.len = ctx->header_end - ctx->header_start; | |
| 532 ctx->addr.data = ctx->header_start; | |
| 533 | |
| 534 continue; | |
| 535 } | |
| 536 | |
| 537 if (len == sizeof("Auth-Port") - 1 | |
| 538 && ngx_strncasecmp(ctx->header_name_start, "Auth-Port", | |
| 539 sizeof("Auth-Port") - 1) == 0) | |
| 540 { | |
| 541 ctx->port.len = ctx->header_end - ctx->header_start; | |
| 542 ctx->port.data = ctx->header_start; | |
| 543 | |
| 544 continue; | |
| 545 } | |
| 546 | |
| 547 if (len == sizeof("Auth-User") - 1 | |
| 548 && ngx_strncasecmp(ctx->header_name_start, "Auth-User", | |
| 549 sizeof("Auth-User") - 1) == 0) | |
| 550 { | |
| 551 s->login.len = ctx->header_end - ctx->header_start; | |
| 567 | 552 |
| 553 s->login.data = ngx_palloc(s->connection->pool, s->login.len); | |
| 554 if (s->login.data == NULL) { | |
| 555 ngx_close_connection(ctx->peer.connection); | |
| 556 ngx_destroy_pool(ctx->pool); | |
| 557 ngx_imap_session_internal_server_error(s); | |
| 558 return; | |
| 559 } | |
| 560 | |
| 561 ngx_memcpy(s->login.data, ctx->header_start, s->login.len); | |
| 527 | 562 |
| 563 continue; | |
| 564 } | |
| 565 | |
| 800 | 566 if (len == sizeof("Auth-Pass") - 1 |
| 567 && ngx_strncasecmp(ctx->header_name_start, "Auth-Pass", | |
| 568 sizeof("Auth-Pass") - 1) == 0) | |
| 569 { | |
| 570 s->passwd.len = ctx->header_end - ctx->header_start; | |
| 571 | |
| 572 s->passwd.data = ngx_palloc(s->connection->pool, s->passwd.len); | |
| 573 if (s->passwd.data == NULL) { | |
| 574 ngx_close_connection(ctx->peer.connection); | |
| 575 ngx_destroy_pool(ctx->pool); | |
| 576 ngx_imap_session_internal_server_error(s); | |
| 577 return; | |
| 578 } | |
| 579 | |
| 580 ngx_memcpy(s->passwd.data, ctx->header_start, s->passwd.len); | |
| 581 | |
| 582 continue; | |
| 583 } | |
| 584 | |
| 527 | 585 if (len == sizeof("Auth-Wait") - 1 |
| 586 && ngx_strncasecmp(ctx->header_name_start, "Auth-Wait", | |
| 587 sizeof("Auth-Wait") - 1) == 0) | |
| 588 { | |
| 589 n = ngx_atoi(ctx->header_start, | |
| 590 ctx->header_end - ctx->header_start); | |
| 591 | |
| 592 if (n != NGX_ERROR) { | |
| 593 ctx->sleep = n; | |
| 594 } | |
| 595 | |
| 596 continue; | |
| 597 } | |
| 598 | |
| 599 /* ignore other headers */ | |
| 600 | |
| 601 continue; | |
| 602 } | |
| 603 | |
| 604 if (rc == NGX_DONE) { | |
| 605 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
| 606 "auth http header done"); | |
| 607 | |
| 608 ngx_close_connection(ctx->peer.connection); | |
| 609 | |
| 610 if (ctx->err.len) { | |
| 567 | 611 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0, |
| 612 "client login failed: \"%V\"", &ctx->errmsg); | |
| 613 | |
| 539 | 614 s->out = ctx->err; |
| 547 | 615 timer = ctx->sleep; |
| 527 | 616 |
| 547 | 617 ngx_destroy_pool(ctx->pool); |
| 618 | |
| 619 if (timer == 0) { | |
| 539 | 620 s->quit = 1; |
| 541 | 621 ngx_imap_send(s->connection->write); |
| 622 return; | |
| 623 } | |
| 539 | 624 |
| 547 | 625 ngx_add_timer(s->connection->read, timer * 1000); |
| 527 | 626 |
| 627 s->connection->read->handler = ngx_imap_auth_sleep_handler; | |
| 628 | |
| 629 return; | |
| 630 } | |
| 631 | |
| 632 if (ctx->addr.len == 0 || ctx->port.len == 0) { | |
| 633 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 541 | 634 "auth http server %V did not send server or port", |
| 635 &ctx->peer.peers->peer[0].name); | |
| 547 | 636 ngx_destroy_pool(ctx->pool); |
| 527 | 637 ngx_imap_session_internal_server_error(s); |
| 638 return; | |
| 639 } | |
| 640 | |
| 800 | 641 if (s->passwd.data == NULL) { |
| 642 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 643 "auth http server %V did not send password", | |
| 644 &ctx->peer.peers->peer[0].name); | |
| 645 ngx_destroy_pool(ctx->pool); | |
| 646 ngx_imap_session_internal_server_error(s); | |
| 647 return; | |
| 648 } | |
| 649 | |
| 547 | 650 peers = ngx_pcalloc(s->connection->pool, sizeof(ngx_peers_t)); |
| 651 if (peers == NULL) { | |
| 652 ngx_destroy_pool(ctx->pool); | |
| 527 | 653 ngx_imap_session_internal_server_error(s); |
| 654 return; | |
| 655 } | |
| 656 | |
| 657 sin = ngx_pcalloc(s->connection->pool, sizeof(struct sockaddr_in)); | |
| 658 if (sin == NULL) { | |
| 547 | 659 ngx_destroy_pool(ctx->pool); |
| 527 | 660 ngx_imap_session_internal_server_error(s); |
| 661 return; | |
| 662 } | |
| 663 | |
| 664 sin->sin_family = AF_INET; | |
| 665 | |
| 666 port = ngx_atoi(ctx->port.data, ctx->port.len); | |
| 667 if (port == NGX_ERROR || port < 1 || port > 65536) { | |
| 668 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 541 | 669 "auth http server %V sent invalid server " |
| 670 "port:\"%V\"", | |
| 671 &ctx->peer.peers->peer[0].name, &ctx->port); | |
| 547 | 672 ngx_destroy_pool(ctx->pool); |
| 527 | 673 ngx_imap_session_internal_server_error(s); |
| 674 return; | |
| 675 } | |
| 676 | |
| 677 sin->sin_port = htons((in_port_t) port); | |
| 678 | |
| 679 ctx->addr.data[ctx->addr.len] = '\0'; | |
| 680 sin->sin_addr.s_addr = inet_addr((char *) ctx->addr.data); | |
| 681 if (sin->sin_addr.s_addr == INADDR_NONE) { | |
| 682 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 541 | 683 "auth http server %V sent invalid server " |
| 684 "address:\"%V\"", | |
| 685 &ctx->peer.peers->peer[0].name, &ctx->addr); | |
| 547 | 686 ngx_destroy_pool(ctx->pool); |
| 527 | 687 ngx_imap_session_internal_server_error(s); |
| 688 return; | |
| 689 } | |
| 690 | |
| 547 | 691 peers->number = 1; |
| 527 | 692 |
| 547 | 693 peers->peer[0].sockaddr = (struct sockaddr *) sin; |
| 694 peers->peer[0].socklen = sizeof(struct sockaddr_in); | |
| 527 | 695 |
| 696 len = ctx->addr.len + 1 + ctx->port.len; | |
| 697 | |
| 547 | 698 peers->peer[0].name.len = len; |
| 527 | 699 |
| 547 | 700 peers->peer[0].name.data = ngx_palloc(s->connection->pool, len); |
| 701 if (peers->peer[0].name.data == NULL) { | |
| 702 ngx_destroy_pool(ctx->pool); | |
| 527 | 703 ngx_imap_session_internal_server_error(s); |
| 704 return; | |
| 705 } | |
| 706 | |
| 707 len = ctx->addr.len; | |
| 708 | |
| 547 | 709 ngx_memcpy(peers->peer[0].name.data, ctx->addr.data, len); |
| 527 | 710 |
| 547 | 711 peers->peer[0].name.data[len++] = ':'; |
| 527 | 712 |
| 547 | 713 ngx_memcpy(peers->peer[0].name.data + len, |
| 527 | 714 ctx->port.data, ctx->port.len); |
| 715 | |
| 547 | 716 peers->peer[0].uri_separator = ""; |
| 527 | 717 |
| 547 | 718 ngx_destroy_pool(ctx->pool); |
| 719 ngx_imap_proxy_init(s, peers); | |
| 527 | 720 |
| 721 return; | |
| 722 } | |
| 723 | |
| 724 if (rc == NGX_AGAIN ) { | |
| 725 return; | |
| 726 } | |
| 727 | |
| 728 /* rc == NGX_ERROR */ | |
| 729 | |
| 730 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 541 | 731 "auth http server %V sent invalid header in response", |
| 732 &ctx->peer.peers->peer[0].name); | |
| 527 | 733 ngx_close_connection(ctx->peer.connection); |
| 547 | 734 ngx_destroy_pool(ctx->pool); |
| 527 | 735 ngx_imap_session_internal_server_error(s); |
| 736 | |
| 737 return; | |
| 738 } | |
| 739 } | |
| 740 | |
| 521 | 741 |
| 527 | 742 static void |
| 743 ngx_imap_auth_sleep_handler(ngx_event_t *rev) | |
| 744 { | |
| 543 | 745 ngx_connection_t *c; |
| 746 ngx_imap_session_t *s; | |
| 747 ngx_imap_core_srv_conf_t *cscf; | |
| 527 | 748 |
| 749 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap auth sleep handler"); | |
| 750 | |
| 751 c = rev->data; | |
| 752 s = c->data; | |
| 753 | |
| 754 if (rev->timedout) { | |
| 755 | |
| 756 rev->timedout = 0; | |
| 757 | |
| 758 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { | |
| 759 s->imap_state = ngx_pop3_start; | |
| 760 s->connection->read->handler = ngx_pop3_auth_state; | |
| 761 | |
| 762 } else { | |
| 763 s->imap_state = ngx_imap_start; | |
| 764 s->connection->read->handler = ngx_imap_auth_state; | |
| 765 } | |
| 766 | |
| 800 | 767 s->auth_method = NGX_IMAP_AUTH_PLAIN; |
| 768 | |
| 543 | 769 c->log->action = "in auth state"; |
| 770 | |
| 771 ngx_imap_send(s->connection->write); | |
| 772 | |
| 583 | 773 if (c->destroyed) { |
| 543 | 774 return; |
| 775 } | |
| 776 | |
| 777 cscf = ngx_imap_get_module_srv_conf(s, ngx_imap_core_module); | |
| 778 | |
| 779 ngx_add_timer(rev, cscf->timeout); | |
| 780 | |
| 527 | 781 if (rev->ready) { |
| 782 s->connection->read->handler(rev); | |
| 783 return; | |
| 784 } | |
| 785 | |
| 786 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 787 ngx_imap_close_connection(s->connection); | |
| 788 } | |
| 789 | |
| 790 return; | |
| 791 } | |
| 792 | |
| 793 if (rev->active) { | |
| 794 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 795 ngx_imap_close_connection(s->connection); | |
| 796 } | |
| 797 } | |
| 798 } | |
| 799 | |
| 800 | |
| 801 static ngx_int_t | |
| 802 ngx_imap_auth_http_parse_header_line(ngx_imap_session_t *s, | |
| 803 ngx_imap_auth_http_ctx_t *ctx) | |
| 804 { | |
| 805 u_char c, ch, *p; | |
| 806 ngx_uint_t hash; | |
| 807 enum { | |
| 808 sw_start = 0, | |
| 809 sw_name, | |
| 810 sw_space_before_value, | |
| 811 sw_value, | |
| 812 sw_space_after_value, | |
| 577 | 813 sw_almost_done, |
| 527 | 814 sw_header_almost_done |
| 815 } state; | |
| 816 | |
| 577 | 817 state = ctx->state; |
| 527 | 818 hash = ctx->hash; |
| 819 | |
| 820 for (p = ctx->response->pos; p < ctx->response->last; p++) { | |
| 821 ch = *p; | |
| 822 | |
| 823 switch (state) { | |
| 824 | |
| 825 /* first char */ | |
| 826 case sw_start: | |
| 827 | |
| 828 switch (ch) { | |
| 829 case CR: | |
| 577 | 830 ctx->header_end = p; |
| 527 | 831 state = sw_header_almost_done; |
| 832 break; | |
| 577 | 833 case LF: |
| 527 | 834 ctx->header_end = p; |
| 835 goto header_done; | |
| 836 default: | |
| 837 state = sw_name; | |
| 838 ctx->header_name_start = p; | |
| 839 | |
| 840 c = (u_char) (ch | 0x20); | |
| 841 if (c >= 'a' && c <= 'z') { | |
| 842 hash = c; | |
| 843 break; | |
| 844 } | |
| 845 | |
| 846 if (ch >= '0' && ch <= '9') { | |
| 847 hash = ch; | |
| 848 break; | |
| 849 } | |
| 850 | |
| 851 return NGX_ERROR; | |
| 852 } | |
| 853 break; | |
| 854 | |
| 855 /* header name */ | |
| 856 case sw_name: | |
| 857 c = (u_char) (ch | 0x20); | |
| 858 if (c >= 'a' && c <= 'z') { | |
| 859 hash += c; | |
| 860 break; | |
| 861 } | |
| 862 | |
| 863 if (ch == ':') { | |
| 864 ctx->header_name_end = p; | |
| 865 state = sw_space_before_value; | |
| 866 break; | |
| 867 } | |
| 868 | |
| 869 if (ch == '-') { | |
| 870 hash += ch; | |
| 871 break; | |
| 872 } | |
| 873 | |
| 874 if (ch >= '0' && ch <= '9') { | |
| 875 hash += ch; | |
| 876 break; | |
| 877 } | |
| 878 | |
| 879 if (ch == CR) { | |
| 880 ctx->header_name_end = p; | |
| 881 ctx->header_start = p; | |
| 882 ctx->header_end = p; | |
| 883 state = sw_almost_done; | |
| 884 break; | |
| 885 } | |
| 886 | |
| 887 if (ch == LF) { | |
| 888 ctx->header_name_end = p; | |
| 889 ctx->header_start = p; | |
| 890 ctx->header_end = p; | |
| 891 goto done; | |
| 892 } | |
| 893 | |
| 894 return NGX_ERROR; | |
| 895 | |
| 896 /* space* before header value */ | |
| 897 case sw_space_before_value: | |
| 898 switch (ch) { | |
| 899 case ' ': | |
| 900 break; | |
| 901 case CR: | |
| 902 ctx->header_start = p; | |
| 903 ctx->header_end = p; | |
| 904 state = sw_almost_done; | |
| 905 break; | |
| 906 case LF: | |
| 907 ctx->header_start = p; | |
| 908 ctx->header_end = p; | |
| 909 goto done; | |
| 910 default: | |
| 911 ctx->header_start = p; | |
| 912 state = sw_value; | |
| 913 break; | |
| 914 } | |
| 915 break; | |
| 916 | |
| 917 /* header value */ | |
| 918 case sw_value: | |
| 919 switch (ch) { | |
| 920 case ' ': | |
| 921 ctx->header_end = p; | |
| 922 state = sw_space_after_value; | |
| 923 break; | |
| 924 case CR: | |
| 925 ctx->header_end = p; | |
| 926 state = sw_almost_done; | |
| 927 break; | |
| 928 case LF: | |
| 929 ctx->header_end = p; | |
| 930 goto done; | |
| 931 } | |
| 932 break; | |
| 933 | |
| 934 /* space* before end of header line */ | |
| 935 case sw_space_after_value: | |
| 936 switch (ch) { | |
| 937 case ' ': | |
| 938 break; | |
| 939 case CR: | |
| 940 state = sw_almost_done; | |
| 941 break; | |
| 942 case LF: | |
| 943 goto done; | |
| 944 default: | |
| 945 state = sw_value; | |
| 946 break; | |
| 947 } | |
| 948 break; | |
| 949 | |
| 950 /* end of header line */ | |
| 951 case sw_almost_done: | |
| 952 switch (ch) { | |
| 953 case LF: | |
| 954 goto done; | |
| 955 default: | |
| 956 return NGX_ERROR; | |
| 957 } | |
| 958 | |
| 959 /* end of header */ | |
| 960 case sw_header_almost_done: | |
| 961 switch (ch) { | |
| 962 case LF: | |
| 963 goto header_done; | |
| 964 default: | |
| 965 return NGX_ERROR; | |
| 966 } | |
| 967 } | |
| 968 } | |
| 969 | |
| 970 ctx->response->pos = p; | |
| 971 ctx->state = state; | |
| 972 ctx->hash = hash; | |
| 973 | |
| 974 return NGX_AGAIN; | |
| 975 | |
| 976 done: | |
| 977 | |
| 978 ctx->response->pos = p + 1; | |
| 979 ctx->state = sw_start; | |
| 980 ctx->hash = hash; | |
| 981 | |
| 982 return NGX_OK; | |
| 983 | |
| 984 header_done: | |
| 985 | |
| 986 ctx->response->pos = p + 1; | |
| 987 ctx->state = sw_start; | |
| 988 | |
| 989 return NGX_DONE; | |
| 521 | 990 } |
| 991 | |
| 992 | |
| 993 static void | |
| 994 ngx_imap_auth_http_block_read(ngx_event_t *rev) | |
| 995 { | |
| 996 ngx_connection_t *c; | |
| 997 ngx_imap_session_t *s; | |
| 998 ngx_imap_auth_http_ctx_t *ctx; | |
| 999 | |
| 1000 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
| 1001 "imap auth http block read"); | |
| 1002 | |
| 1003 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 1004 c = rev->data; | |
| 1005 s = c->data; | |
| 1006 | |
| 1007 ctx = ngx_imap_get_module_ctx(s, ngx_imap_auth_http_module); | |
| 1008 | |
| 525 | 1009 ngx_close_connection(ctx->peer.connection); |
| 547 | 1010 ngx_destroy_pool(ctx->pool); |
| 525 | 1011 ngx_imap_session_internal_server_error(s); |
| 521 | 1012 } |
| 1013 } | |
| 1014 | |
| 1015 | |
| 1016 static void | |
| 1017 ngx_imap_auth_http_dummy_handler(ngx_event_t *ev) | |
| 1018 { | |
| 1019 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, ev->log, 0, | |
| 1020 "imap auth http dummy handler"); | |
| 1021 } | |
| 1022 | |
| 1023 | |
| 1024 static ngx_buf_t * | |
| 547 | 1025 ngx_imap_auth_http_create_request(ngx_imap_session_t *s, ngx_pool_t *pool, |
| 521 | 1026 ngx_imap_auth_http_conf_t *ahcf) |
| 1027 { | |
| 1028 size_t len; | |
| 1029 ngx_buf_t *b; | |
| 633 | 1030 ngx_str_t login, passwd; |
| 1031 | |
| 1032 if (ngx_imap_auth_http_escape(pool, &s->login, &login) != NGX_OK) { | |
| 1033 return NULL; | |
| 1034 } | |
| 1035 | |
| 1036 if (ngx_imap_auth_http_escape(pool, &s->passwd, &passwd) != NGX_OK) { | |
| 1037 return NULL; | |
| 1038 } | |
| 521 | 1039 |
| 1040 len = sizeof("GET ") - 1 + ahcf->uri.len + sizeof(" HTTP/1.0" CRLF) - 1 | |
| 1041 + sizeof("Host: ") - 1 + ahcf->host_header.len + sizeof(CRLF) - 1 | |
| 1042 + sizeof("Auth-Method: plain" CRLF) - 1 | |
| 633 | 1043 + sizeof("Auth-User: ") - 1 + login.len + sizeof(CRLF) - 1 |
| 1044 + sizeof("Auth-Pass: ") - 1 + passwd.len + sizeof(CRLF) - 1 | |
| 800 | 1045 + sizeof("Auth-Salt: ") - 1 + s->salt.len |
| 521 | 1046 + sizeof("Auth-Protocol: imap" CRLF) - 1 |
| 527 | 1047 + sizeof("Auth-Login-Attempt: ") - 1 + NGX_INT_T_LEN |
| 1048 + sizeof(CRLF) - 1 | |
| 521 | 1049 + sizeof("Client-IP: ") - 1 + s->connection->addr_text.len |
| 1050 + sizeof(CRLF) - 1 | |
| 1051 + sizeof(CRLF) - 1; | |
| 1052 | |
| 547 | 1053 b = ngx_create_temp_buf(pool, len); |
| 521 | 1054 if (b == NULL) { |
| 1055 return NULL; | |
| 1056 } | |
| 1057 | |
| 1058 b->last = ngx_cpymem(b->last, "GET ", sizeof("GET ") - 1); | |
| 573 | 1059 b->last = ngx_copy(b->last, ahcf->uri.data, ahcf->uri.len); |
| 521 | 1060 b->last = ngx_cpymem(b->last, " HTTP/1.0" CRLF, |
| 1061 sizeof(" HTTP/1.0" CRLF) - 1); | |
| 1062 | |
| 1063 b->last = ngx_cpymem(b->last, "Host: ", sizeof("Host: ") - 1); | |
| 573 | 1064 b->last = ngx_copy(b->last, ahcf->host_header.data, |
| 521 | 1065 ahcf->host_header.len); |
| 1066 *b->last++ = CR; *b->last++ = LF; | |
| 1067 | |
| 800 | 1068 b->last = ngx_cpymem(b->last, "Auth-Method: ", |
| 1069 sizeof("Auth-Method: ") - 1); | |
| 1070 b->last = ngx_cpymem(b->last, | |
| 1071 ngx_imap_auth_http_method[s->auth_method].data, | |
| 1072 ngx_imap_auth_http_method[s->auth_method].len); | |
| 1073 *b->last++ = CR; *b->last++ = LF; | |
| 521 | 1074 |
| 1075 b->last = ngx_cpymem(b->last, "Auth-User: ", sizeof("Auth-User: ") - 1); | |
| 633 | 1076 b->last = ngx_copy(b->last, login.data, login.len); |
| 521 | 1077 *b->last++ = CR; *b->last++ = LF; |
| 1078 | |
| 1079 b->last = ngx_cpymem(b->last, "Auth-Pass: ", sizeof("Auth-Pass: ") - 1); | |
| 633 | 1080 b->last = ngx_copy(b->last, passwd.data, passwd.len); |
| 521 | 1081 *b->last++ = CR; *b->last++ = LF; |
| 1082 | |
| 809 | 1083 if (s->auth_method != NGX_IMAP_AUTH_PLAIN && s->salt.len) { |
| 800 | 1084 b->last = ngx_cpymem(b->last, "Auth-Salt: ", sizeof("Auth-Salt: ") - 1); |
| 1085 b->last = ngx_copy(b->last, s->salt.data, s->salt.len); | |
| 1086 | |
| 1087 s->passwd.data = NULL; | |
| 1088 } | |
| 1089 | |
| 521 | 1090 b->last = ngx_cpymem(b->last, "Auth-Protocol: ", |
| 1091 sizeof("Auth-Protocol: ") - 1); | |
| 1092 b->last = ngx_cpymem(b->last, ngx_imap_auth_http_protocol[s->protocol], | |
| 1093 sizeof("imap") - 1); | |
| 1094 *b->last++ = CR; *b->last++ = LF; | |
| 1095 | |
| 527 | 1096 b->last = ngx_sprintf(b->last, "Auth-Login-Attempt: %ui" CRLF, |
| 1097 s->login_attempt); | |
| 1098 | |
| 521 | 1099 b->last = ngx_cpymem(b->last, "Client-IP: ", sizeof("Client-IP: ") - 1); |
| 573 | 1100 b->last = ngx_copy(b->last, s->connection->addr_text.data, |
| 521 | 1101 s->connection->addr_text.len); |
| 1102 *b->last++ = CR; *b->last++ = LF; | |
| 1103 | |
| 573 | 1104 if (ahcf->header.len) { |
| 1105 b->last = ngx_copy(b->last, ahcf->header.data, ahcf->header.len); | |
| 1106 } | |
| 1107 | |
| 521 | 1108 /* add "\r\n" at the header end */ |
| 1109 *b->last++ = CR; *b->last++ = LF; | |
| 1110 | |
| 547 | 1111 #if (NGX_DEBUG_IMAP_PASSWD) |
| 521 | 1112 { |
| 1113 ngx_str_t l; | |
| 1114 | |
| 1115 l.len = b->last - b->pos; | |
| 1116 l.data = b->pos; | |
| 527 | 1117 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, |
| 521 | 1118 "imap auth http header:\n\"%V\"", &l); |
| 1119 } | |
| 1120 #endif | |
| 1121 | |
| 1122 return b; | |
| 1123 } | |
| 1124 | |
| 1125 | |
| 633 | 1126 static ngx_int_t |
| 1127 ngx_imap_auth_http_escape(ngx_pool_t *pool, ngx_str_t *text, ngx_str_t *escaped) | |
| 1128 { | |
| 1129 u_char ch, *p; | |
| 1130 ngx_uint_t i, n; | |
| 1131 | |
| 1132 n = 0; | |
| 1133 | |
| 1134 for (i = 0; i < text->len; i++) { | |
| 1135 ch = text->data[i]; | |
| 1136 | |
| 1137 if (ch == CR || ch == LF) { | |
| 1138 n++; | |
| 1139 } | |
| 1140 } | |
| 1141 | |
| 1142 if (n == 0) { | |
| 1143 *escaped = *text; | |
| 1144 return NGX_OK; | |
| 1145 } | |
| 1146 | |
| 1147 escaped->len = text->len + n * 2; | |
| 1148 | |
| 1149 p = ngx_palloc(pool, escaped->len); | |
| 1150 if (p == NULL) { | |
| 1151 return NGX_ERROR; | |
| 1152 } | |
| 1153 | |
| 1154 escaped->data = p; | |
| 1155 | |
| 1156 for (i = 0; i < text->len; i++) { | |
| 1157 ch = text->data[i]; | |
| 1158 | |
| 1159 if (ch == CR) { | |
| 1160 *p++ = '%'; | |
| 1161 *p++ = '0'; | |
| 1162 *p++ = 'D'; | |
| 1163 continue; | |
| 1164 } | |
| 1165 | |
| 1166 if (ch == LF) { | |
| 1167 *p++ = '%'; | |
| 1168 *p++ = '0'; | |
| 1169 *p++ = 'A'; | |
| 1170 continue; | |
| 1171 } | |
| 1172 | |
| 1173 *p++ = ch; | |
| 1174 } | |
| 1175 | |
| 1176 return NGX_OK; | |
| 1177 } | |
| 1178 | |
| 1179 | |
| 521 | 1180 static void * |
| 1181 ngx_imap_auth_http_create_conf(ngx_conf_t *cf) | |
| 577 | 1182 { |
| 521 | 1183 ngx_imap_auth_http_conf_t *ahcf; |
| 577 | 1184 |
| 521 | 1185 ahcf = ngx_pcalloc(cf->pool, sizeof(ngx_imap_auth_http_conf_t)); |
| 1186 if (ahcf == NULL) { | |
| 1187 return NGX_CONF_ERROR; | |
| 1188 } | |
| 1189 | |
| 1190 ahcf->timeout = NGX_CONF_UNSET_MSEC; | |
| 1191 | |
| 1192 return ahcf; | |
| 1193 } | |
| 1194 | |
| 1195 | |
| 1196 static char * | |
| 1197 ngx_imap_auth_http_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 1198 { | |
| 1199 ngx_imap_auth_http_conf_t *prev = parent; | |
| 1200 ngx_imap_auth_http_conf_t *conf = child; | |
| 1201 | |
| 573 | 1202 u_char *p; |
| 1203 size_t len; | |
| 1204 ngx_uint_t i; | |
| 1205 ngx_table_elt_t *header; | |
| 1206 | |
| 521 | 1207 if (conf->peers == NULL) { |
| 1208 conf->peers = prev->peers; | |
| 1209 conf->host_header = prev->host_header; | |
| 1210 conf->uri = prev->uri; | |
| 1211 } | |
| 1212 | |
| 1213 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000); | |
| 1214 | |
| 573 | 1215 if (conf->headers == NULL) { |
| 1216 conf->headers = prev->headers; | |
| 1217 conf->header = prev->header; | |
| 1218 } | |
| 1219 | |
| 1220 if (conf->headers && conf->header.len == 0) { | |
| 1221 len = 0; | |
| 1222 header = conf->headers->elts; | |
| 1223 for (i = 0; i < conf->headers->nelts; i++) { | |
| 1224 len += header[i].key.len + 2 + header[i].value.len + 2; | |
| 1225 } | |
| 1226 | |
| 1227 p = ngx_palloc(cf->pool, len); | |
| 1228 if (p == NULL) { | |
| 1229 return NGX_CONF_ERROR; | |
| 1230 } | |
| 1231 | |
| 1232 conf->header.len = len; | |
| 1233 conf->header.data = p; | |
| 1234 | |
| 1235 for (i = 0; i < conf->headers->nelts; i++) { | |
| 1236 p = ngx_cpymem(p, header[i].key.data, header[i].key.len); | |
| 1237 *p++ = ':'; *p++ = ' '; | |
| 1238 p = ngx_cpymem(p, header[i].value.data, header[i].value.len); | |
| 1239 *p++ = CR; *p++ = LF; | |
| 1240 } | |
| 1241 } | |
| 1242 | |
| 521 | 1243 return NGX_CONF_OK; |
| 1244 } | |
| 1245 | |
| 1246 | |
| 1247 static char * | |
| 1248 ngx_imap_auth_http(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 577 | 1249 { |
| 521 | 1250 ngx_imap_auth_http_conf_t *ahcf = conf; |
| 1251 | |
|
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|
1252 ngx_str_t *value; |
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1253 ngx_url_t u; |
| 573 | 1254 |
| 521 | 1255 value = cf->args->elts; |
| 1256 | |
|
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|
1257 ngx_memzero(&u, sizeof(ngx_url_t)); |
| 521 | 1258 |
|
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|
1259 u.url = value[1]; |
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1260 u.default_portn = 80; |
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1261 u.uri_part = 1; |
| 577 | 1262 |
|
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1263 if (ngx_parse_url(cf, &u) != NGX_OK) { |
|
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1264 if (u.err) { |
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1265 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
|
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1266 "%s in auth_http \"%V\"", u.err, &u.url); |
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1267 } |
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1268 } |
| 521 | 1269 |
|
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|
1270 ahcf->peers = u.peers; |
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1271 ahcf->peers->number = 1; |
| 521 | 1272 |
|
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|
1273 ahcf->host_header = u.host_header; |
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|
1274 ahcf->uri = u.uri; |
| 521 | 1275 |
| 559 | 1276 if (ahcf->uri.len == 0) { |
| 555 | 1277 ahcf->uri.len = sizeof("/") - 1; |
| 1278 ahcf->uri.data = (u_char *) "/"; | |
| 1279 } | |
| 1280 | |
| 521 | 1281 return NGX_CONF_OK; |
| 1282 } | |
| 573 | 1283 |
| 1284 | |
| 1285 static char * | |
| 1286 ngx_imap_auth_http_header(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 577 | 1287 { |
| 573 | 1288 ngx_imap_auth_http_conf_t *ahcf = conf; |
| 1289 | |
| 1290 ngx_str_t *value; | |
| 1291 ngx_table_elt_t *header; | |
| 1292 | |
| 1293 if (ahcf->headers == NULL) { | |
| 1294 ahcf->headers = ngx_array_create(cf->pool, 1, sizeof(ngx_table_elt_t)); | |
| 1295 if (ahcf->headers == NULL) { | |
| 1296 return NGX_CONF_ERROR; | |
| 1297 } | |
| 1298 } | |
| 1299 | |
| 1300 header = ngx_array_push(ahcf->headers); | |
| 1301 if (header == NULL) { | |
| 1302 return NGX_CONF_ERROR; | |
| 1303 } | |
| 1304 | |
| 1305 value = cf->args->elts; | |
| 1306 | |
| 1307 header->key = value[1]; | |
| 1308 header->value = value[2]; | |
| 1309 | |
| 1310 return NGX_CONF_OK; | |
| 1311 } |