Mercurial > hg > nginx
annotate src/imap/ngx_imap_auth_http_module.c @ 862:6044cea025fa
fix segfault when connect() failed
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Wed, 22 Nov 2006 16:00:14 +0000 |
| parents | 0197d6aae54e |
| children | eac23634d614 |
| 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) { |
|
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6044cea025fa
fix segfault when connect() failed
Igor Sysoev <igor@sysoev.ru>
parents:
856
diff
changeset
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185 if (ctx->peer.connection) { |
|
6044cea025fa
fix segfault when connect() failed
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parents:
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diff
changeset
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186 ngx_close_connection(ctx->peer.connection); |
|
6044cea025fa
fix segfault when connect() failed
Igor Sysoev <igor@sysoev.ru>
parents:
856
diff
changeset
|
187 } |
|
6044cea025fa
fix segfault when connect() failed
Igor Sysoev <igor@sysoev.ru>
parents:
856
diff
changeset
|
188 |
| 547 | 189 ngx_destroy_pool(ctx->pool); |
| 525 | 190 ngx_imap_session_internal_server_error(s); |
| 521 | 191 return; |
| 192 } | |
| 193 | |
| 194 ctx->peer.connection->data = s; | |
| 195 ctx->peer.connection->pool = s->connection->pool; | |
| 196 | |
| 197 s->connection->read->handler = ngx_imap_auth_http_block_read; | |
| 198 ctx->peer.connection->read->handler = ngx_imap_auth_http_read_handler; | |
| 199 ctx->peer.connection->write->handler = ngx_imap_auth_http_write_handler; | |
| 200 | |
| 527 | 201 ctx->handler = ngx_imap_auth_http_ignore_status_line; |
| 202 | |
| 541 | 203 ngx_add_timer(ctx->peer.connection->read, ahcf->timeout); |
| 204 ngx_add_timer(ctx->peer.connection->write, ahcf->timeout); | |
| 205 | |
| 521 | 206 if (rc == NGX_OK) { |
| 207 ngx_imap_auth_http_write_handler(ctx->peer.connection->write); | |
| 208 return; | |
| 209 } | |
| 210 } | |
| 211 | |
| 212 | |
| 213 static void | |
| 214 ngx_imap_auth_http_write_handler(ngx_event_t *wev) | |
| 215 { | |
| 216 ssize_t n, size; | |
| 217 ngx_connection_t *c; | |
| 218 ngx_imap_session_t *s; | |
| 219 ngx_imap_auth_http_ctx_t *ctx; | |
| 220 ngx_imap_auth_http_conf_t *ahcf; | |
| 221 | |
| 222 c = wev->data; | |
| 223 s = c->data; | |
| 224 | |
| 225 ctx = ngx_imap_get_module_ctx(s, ngx_imap_auth_http_module); | |
| 226 | |
| 227 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, wev->log, 0, | |
| 228 "imap auth http write handler"); | |
| 229 | |
| 577 | 230 if (wev->timedout) { |
| 521 | 231 ngx_log_error(NGX_LOG_ERR, wev->log, NGX_ETIMEDOUT, |
| 541 | 232 "auth http server %V timed out", |
| 233 &ctx->peer.peers->peer[0].name); | |
| 525 | 234 ngx_close_connection(ctx->peer.connection); |
| 547 | 235 ngx_destroy_pool(ctx->pool); |
| 525 | 236 ngx_imap_session_internal_server_error(s); |
| 521 | 237 return; |
| 238 } | |
| 239 | |
| 240 size = ctx->request->last - ctx->request->pos; | |
| 241 | |
| 242 n = ngx_send(c, ctx->request->pos, size); | |
| 243 | |
| 244 if (n == NGX_ERROR) { | |
| 525 | 245 ngx_close_connection(ctx->peer.connection); |
| 547 | 246 ngx_destroy_pool(ctx->pool); |
| 525 | 247 ngx_imap_session_internal_server_error(s); |
| 521 | 248 return; |
| 249 } | |
| 250 | |
| 251 if (n > 0) { | |
| 252 ctx->request->pos += n; | |
| 253 | |
| 254 if (n == size) { | |
| 255 wev->handler = ngx_imap_auth_http_dummy_handler; | |
| 256 | |
| 257 if (wev->timer_set) { | |
| 258 ngx_del_timer(wev); | |
| 259 } | |
| 260 | |
|
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261 if (ngx_handle_write_event(wev, 0) == NGX_ERROR) { |
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parents:
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changeset
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262 ngx_close_connection(ctx->peer.connection); |
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263 ngx_destroy_pool(ctx->pool); |
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9737d6fb1ac6
disable write level event while waiting auth server response
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parents:
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diff
changeset
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264 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
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265 } |
|
9737d6fb1ac6
disable write level event while waiting auth server response
Igor Sysoev <igor@sysoev.ru>
parents:
633
diff
changeset
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266 |
| 521 | 267 return; |
| 268 } | |
| 269 } | |
| 270 | |
| 271 if (!wev->timer_set) { | |
| 272 ahcf = ngx_imap_get_module_srv_conf(s, ngx_imap_auth_http_module); | |
| 273 ngx_add_timer(wev, ahcf->timeout); | |
| 274 } | |
| 275 } | |
| 276 | |
| 277 | |
| 278 static void | |
| 279 ngx_imap_auth_http_read_handler(ngx_event_t *rev) | |
| 280 { | |
| 525 | 281 ssize_t n, size; |
| 521 | 282 ngx_connection_t *c; |
| 283 ngx_imap_session_t *s; | |
| 284 ngx_imap_auth_http_ctx_t *ctx; | |
| 285 | |
| 286 c = rev->data; | |
| 287 s = c->data; | |
| 288 | |
| 289 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
| 290 "imap auth http read handler"); | |
| 291 | |
| 525 | 292 ctx = ngx_imap_get_module_ctx(s, ngx_imap_auth_http_module); |
| 293 | |
| 577 | 294 if (rev->timedout) { |
| 525 | 295 ngx_log_error(NGX_LOG_ERR, rev->log, NGX_ETIMEDOUT, |
| 541 | 296 "auth http server %V timed out", |
| 297 &ctx->peer.peers->peer[0].name); | |
| 525 | 298 ngx_close_connection(ctx->peer.connection); |
| 547 | 299 ngx_destroy_pool(ctx->pool); |
| 525 | 300 ngx_imap_session_internal_server_error(s); |
| 301 return; | |
| 302 } | |
| 303 | |
| 304 if (ctx->response == NULL) { | |
| 547 | 305 ctx->response = ngx_create_temp_buf(ctx->pool, 1024); |
| 525 | 306 if (ctx->response == NULL) { |
| 307 ngx_close_connection(ctx->peer.connection); | |
| 547 | 308 ngx_destroy_pool(ctx->pool); |
| 525 | 309 ngx_imap_session_internal_server_error(s); |
| 310 return; | |
| 311 } | |
| 312 } | |
| 313 | |
| 527 | 314 size = ctx->response->end - ctx->response->last; |
| 525 | 315 |
| 316 n = ngx_recv(c, ctx->response->pos, size); | |
| 317 | |
| 527 | 318 if (n > 0) { |
| 319 ctx->response->last += n; | |
| 320 | |
| 321 ctx->handler(s, ctx); | |
| 322 return; | |
| 323 } | |
| 324 | |
| 325 if (n == NGX_AGAIN) { | |
| 525 | 326 return; |
| 327 } | |
| 328 | |
| 527 | 329 ngx_close_connection(ctx->peer.connection); |
| 547 | 330 ngx_destroy_pool(ctx->pool); |
| 527 | 331 ngx_imap_session_internal_server_error(s); |
| 332 } | |
| 525 | 333 |
| 334 | |
| 527 | 335 static void |
| 336 ngx_imap_auth_http_ignore_status_line(ngx_imap_session_t *s, | |
| 337 ngx_imap_auth_http_ctx_t *ctx) | |
| 338 { | |
| 339 u_char *p, ch; | |
| 340 enum { | |
| 341 sw_start = 0, | |
| 342 sw_H, | |
| 343 sw_HT, | |
| 344 sw_HTT, | |
| 345 sw_HTTP, | |
| 346 sw_skip, | |
| 347 sw_almost_done | |
| 348 } state; | |
| 349 | |
| 350 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
| 351 "imap auth http process status line"); | |
| 352 | |
| 353 state = ctx->state; | |
| 354 | |
| 355 for (p = ctx->response->pos; p < ctx->response->last; p++) { | |
| 356 ch = *p; | |
| 357 | |
| 358 switch (state) { | |
| 359 | |
| 360 /* "HTTP/" */ | |
| 361 case sw_start: | |
| 362 if (ch == 'H') { | |
| 363 state = sw_H; | |
| 364 break; | |
| 365 } | |
| 366 goto next; | |
| 367 | |
| 368 case sw_H: | |
| 369 if (ch == 'T') { | |
| 370 state = sw_HT; | |
| 371 break; | |
| 372 } | |
| 373 goto next; | |
| 374 | |
| 375 case sw_HT: | |
| 376 if (ch == 'T') { | |
| 377 state = sw_HTT; | |
| 378 break; | |
| 379 } | |
| 380 goto next; | |
| 381 | |
| 382 case sw_HTT: | |
| 383 if (ch == 'P') { | |
| 384 state = sw_HTTP; | |
| 385 break; | |
| 386 } | |
| 387 goto next; | |
| 388 | |
| 389 case sw_HTTP: | |
| 390 if (ch == '/') { | |
| 391 state = sw_skip; | |
| 392 break; | |
| 393 } | |
| 394 goto next; | |
| 395 | |
| 396 /* any text until end of line */ | |
| 397 case sw_skip: | |
| 398 switch (ch) { | |
| 399 case CR: | |
| 400 state = sw_almost_done; | |
| 401 | |
| 402 break; | |
| 577 | 403 case LF: |
| 527 | 404 goto done; |
| 405 } | |
| 406 break; | |
| 407 | |
| 408 /* end of status line */ | |
| 409 case sw_almost_done: | |
| 410 if (ch == LF) { | |
| 411 goto done; | |
| 412 } | |
| 413 | |
| 414 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 541 | 415 "auth http server &V sent invalid response", |
| 416 &ctx->peer.peers->peer[0].name); | |
| 527 | 417 ngx_close_connection(ctx->peer.connection); |
| 547 | 418 ngx_destroy_pool(ctx->pool); |
| 527 | 419 ngx_imap_session_internal_server_error(s); |
| 420 return; | |
| 421 } | |
| 422 } | |
| 423 | |
| 424 ctx->response->pos = p; | |
| 425 ctx->state = state; | |
| 426 | |
| 427 return; | |
| 428 | |
| 429 next: | |
| 430 | |
| 431 p = ctx->response->start - 1; | |
| 432 | |
| 433 done: | |
| 434 | |
| 435 ctx->response->pos = p + 1; | |
| 436 ctx->state = 0; | |
| 437 ctx->handler = ngx_imap_auth_http_process_headers; | |
| 438 ctx->handler(s, ctx); | |
| 439 } | |
| 525 | 440 |
| 441 | |
| 527 | 442 static void |
| 443 ngx_imap_auth_http_process_headers(ngx_imap_session_t *s, | |
| 444 ngx_imap_auth_http_ctx_t *ctx) | |
| 445 { | |
| 446 u_char *p; | |
| 547 | 447 time_t timer; |
| 527 | 448 size_t len, size; |
| 449 ngx_int_t rc, port, n; | |
| 547 | 450 ngx_peers_t *peers; |
| 527 | 451 struct sockaddr_in *sin; |
| 525 | 452 |
| 527 | 453 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, |
| 454 "imap auth http process headers"); | |
| 455 | |
| 456 for ( ;; ) { | |
| 457 rc = ngx_imap_auth_http_parse_header_line(s, ctx); | |
| 458 | |
| 459 if (rc == NGX_OK) { | |
| 460 | |
| 461 #if (NGX_DEBUG) | |
| 462 { | |
| 463 ngx_str_t key, value; | |
| 464 | |
| 465 key.len = ctx->header_name_end - ctx->header_name_start; | |
| 466 key.data = ctx->header_name_start; | |
| 467 value.len = ctx->header_end - ctx->header_start; | |
| 468 value.data = ctx->header_start; | |
| 469 | |
| 470 ngx_log_debug2(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
| 471 "auth http header: \"%V: %V\"", | |
| 472 &key, &value); | |
| 473 } | |
| 474 #endif | |
| 475 | |
| 476 len = ctx->header_name_end - ctx->header_name_start; | |
| 477 | |
| 478 if (len == sizeof("Auth-Status") - 1 | |
| 479 && ngx_strncasecmp(ctx->header_name_start, "Auth-Status", | |
| 480 sizeof("Auth-Status") - 1) == 0) | |
| 481 { | |
| 482 len = ctx->header_end - ctx->header_start; | |
| 483 | |
| 484 if (len == 2 | |
| 485 && ctx->header_start[0] == 'O' | |
| 486 && ctx->header_start[1] == 'K') | |
| 487 { | |
| 488 continue; | |
| 489 } | |
| 490 | |
| 567 | 491 ctx->errmsg.len = len; |
| 492 ctx->errmsg.data = ctx->header_start; | |
| 493 | |
| 527 | 494 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { |
|
854
1673f197bc62
fix segfault when many auth failures occurred
Igor Sysoev <igor@sysoev.ru>
parents:
809
diff
changeset
|
495 size = sizeof("-ERR ") - 1 + len + sizeof(CRLF) - 1; |
| 527 | 496 |
| 497 } else { | |
|
854
1673f197bc62
fix segfault when many auth failures occurred
Igor Sysoev <igor@sysoev.ru>
parents:
809
diff
changeset
|
498 size = s->tag.len + sizeof("NO ") - 1 + len |
| 527 | 499 + sizeof(CRLF) - 1; |
| 500 } | |
| 501 | |
| 502 p = ngx_pcalloc(s->connection->pool, size); | |
| 503 if (p == NULL) { | |
| 543 | 504 ngx_close_connection(ctx->peer.connection); |
| 547 | 505 ngx_destroy_pool(ctx->pool); |
| 527 | 506 ngx_imap_session_internal_server_error(s); |
| 507 return; | |
| 508 } | |
| 509 | |
| 510 ctx->err.data = p; | |
| 511 | |
| 512 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { | |
| 513 *p++ = '-'; *p++ = 'E'; *p++ = 'R'; *p++ = 'R'; | |
| 514 | |
| 515 } else { | |
| 516 p = ngx_cpymem(p, s->tag.data, s->tag.len); | |
| 517 *p++ = 'N'; *p++ = 'O'; | |
| 518 } | |
| 519 | |
| 520 *p++ = ' '; | |
| 567 | 521 |
| 527 | 522 p = ngx_cpymem(p, ctx->header_start, len); |
| 523 *p++ = CR; *p++ = LF; | |
| 524 | |
| 525 ctx->err.len = p - ctx->err.data; | |
| 526 | |
| 527 continue; | |
| 528 } | |
| 529 | |
| 530 if (len == sizeof("Auth-Server") - 1 | |
| 531 && ngx_strncasecmp(ctx->header_name_start, "Auth-Server", | |
| 532 sizeof("Auth-Server") - 1) == 0) | |
| 533 { | |
| 534 ctx->addr.len = ctx->header_end - ctx->header_start; | |
| 535 ctx->addr.data = ctx->header_start; | |
| 536 | |
| 537 continue; | |
| 538 } | |
| 539 | |
| 540 if (len == sizeof("Auth-Port") - 1 | |
| 541 && ngx_strncasecmp(ctx->header_name_start, "Auth-Port", | |
| 542 sizeof("Auth-Port") - 1) == 0) | |
| 543 { | |
| 544 ctx->port.len = ctx->header_end - ctx->header_start; | |
| 545 ctx->port.data = ctx->header_start; | |
| 546 | |
| 547 continue; | |
| 548 } | |
| 549 | |
| 550 if (len == sizeof("Auth-User") - 1 | |
| 551 && ngx_strncasecmp(ctx->header_name_start, "Auth-User", | |
| 552 sizeof("Auth-User") - 1) == 0) | |
| 553 { | |
| 554 s->login.len = ctx->header_end - ctx->header_start; | |
| 567 | 555 |
| 556 s->login.data = ngx_palloc(s->connection->pool, s->login.len); | |
| 557 if (s->login.data == NULL) { | |
| 558 ngx_close_connection(ctx->peer.connection); | |
| 559 ngx_destroy_pool(ctx->pool); | |
| 560 ngx_imap_session_internal_server_error(s); | |
| 561 return; | |
| 562 } | |
| 563 | |
| 564 ngx_memcpy(s->login.data, ctx->header_start, s->login.len); | |
| 527 | 565 |
| 566 continue; | |
| 567 } | |
| 568 | |
| 800 | 569 if (len == sizeof("Auth-Pass") - 1 |
| 570 && ngx_strncasecmp(ctx->header_name_start, "Auth-Pass", | |
| 571 sizeof("Auth-Pass") - 1) == 0) | |
| 572 { | |
| 573 s->passwd.len = ctx->header_end - ctx->header_start; | |
| 574 | |
| 575 s->passwd.data = ngx_palloc(s->connection->pool, s->passwd.len); | |
| 576 if (s->passwd.data == NULL) { | |
| 577 ngx_close_connection(ctx->peer.connection); | |
| 578 ngx_destroy_pool(ctx->pool); | |
| 579 ngx_imap_session_internal_server_error(s); | |
| 580 return; | |
| 581 } | |
| 582 | |
| 583 ngx_memcpy(s->passwd.data, ctx->header_start, s->passwd.len); | |
| 584 | |
| 585 continue; | |
| 586 } | |
| 587 | |
| 527 | 588 if (len == sizeof("Auth-Wait") - 1 |
| 589 && ngx_strncasecmp(ctx->header_name_start, "Auth-Wait", | |
| 590 sizeof("Auth-Wait") - 1) == 0) | |
| 591 { | |
| 592 n = ngx_atoi(ctx->header_start, | |
| 593 ctx->header_end - ctx->header_start); | |
| 594 | |
| 595 if (n != NGX_ERROR) { | |
| 596 ctx->sleep = n; | |
| 597 } | |
| 598 | |
| 599 continue; | |
| 600 } | |
| 601 | |
| 602 /* ignore other headers */ | |
| 603 | |
| 604 continue; | |
| 605 } | |
| 606 | |
| 607 if (rc == NGX_DONE) { | |
| 608 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
| 609 "auth http header done"); | |
| 610 | |
| 611 ngx_close_connection(ctx->peer.connection); | |
| 612 | |
| 613 if (ctx->err.len) { | |
| 567 | 614 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0, |
| 615 "client login failed: \"%V\"", &ctx->errmsg); | |
| 616 | |
| 539 | 617 s->out = ctx->err; |
| 547 | 618 timer = ctx->sleep; |
| 527 | 619 |
| 547 | 620 ngx_destroy_pool(ctx->pool); |
| 621 | |
| 622 if (timer == 0) { | |
| 539 | 623 s->quit = 1; |
| 541 | 624 ngx_imap_send(s->connection->write); |
| 625 return; | |
| 626 } | |
| 539 | 627 |
| 547 | 628 ngx_add_timer(s->connection->read, timer * 1000); |
| 527 | 629 |
| 630 s->connection->read->handler = ngx_imap_auth_sleep_handler; | |
| 631 | |
| 632 return; | |
| 633 } | |
| 634 | |
| 635 if (ctx->addr.len == 0 || ctx->port.len == 0) { | |
| 636 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 541 | 637 "auth http server %V did not send server or port", |
| 638 &ctx->peer.peers->peer[0].name); | |
| 547 | 639 ngx_destroy_pool(ctx->pool); |
| 527 | 640 ngx_imap_session_internal_server_error(s); |
| 641 return; | |
| 642 } | |
| 643 | |
| 800 | 644 if (s->passwd.data == NULL) { |
| 645 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 646 "auth http server %V did not send password", | |
| 647 &ctx->peer.peers->peer[0].name); | |
| 648 ngx_destroy_pool(ctx->pool); | |
| 649 ngx_imap_session_internal_server_error(s); | |
| 650 return; | |
| 651 } | |
| 652 | |
| 547 | 653 peers = ngx_pcalloc(s->connection->pool, sizeof(ngx_peers_t)); |
| 654 if (peers == NULL) { | |
| 655 ngx_destroy_pool(ctx->pool); | |
| 527 | 656 ngx_imap_session_internal_server_error(s); |
| 657 return; | |
| 658 } | |
| 659 | |
| 660 sin = ngx_pcalloc(s->connection->pool, sizeof(struct sockaddr_in)); | |
| 661 if (sin == NULL) { | |
| 547 | 662 ngx_destroy_pool(ctx->pool); |
| 527 | 663 ngx_imap_session_internal_server_error(s); |
| 664 return; | |
| 665 } | |
| 666 | |
| 667 sin->sin_family = AF_INET; | |
| 668 | |
| 669 port = ngx_atoi(ctx->port.data, ctx->port.len); | |
| 670 if (port == NGX_ERROR || port < 1 || port > 65536) { | |
| 671 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 541 | 672 "auth http server %V sent invalid server " |
| 673 "port:\"%V\"", | |
| 674 &ctx->peer.peers->peer[0].name, &ctx->port); | |
| 547 | 675 ngx_destroy_pool(ctx->pool); |
| 527 | 676 ngx_imap_session_internal_server_error(s); |
| 677 return; | |
| 678 } | |
| 679 | |
| 680 sin->sin_port = htons((in_port_t) port); | |
| 681 | |
| 682 ctx->addr.data[ctx->addr.len] = '\0'; | |
| 683 sin->sin_addr.s_addr = inet_addr((char *) ctx->addr.data); | |
| 684 if (sin->sin_addr.s_addr == INADDR_NONE) { | |
| 685 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 541 | 686 "auth http server %V sent invalid server " |
| 687 "address:\"%V\"", | |
| 688 &ctx->peer.peers->peer[0].name, &ctx->addr); | |
| 547 | 689 ngx_destroy_pool(ctx->pool); |
| 527 | 690 ngx_imap_session_internal_server_error(s); |
| 691 return; | |
| 692 } | |
| 693 | |
| 547 | 694 peers->number = 1; |
| 527 | 695 |
| 547 | 696 peers->peer[0].sockaddr = (struct sockaddr *) sin; |
| 697 peers->peer[0].socklen = sizeof(struct sockaddr_in); | |
| 527 | 698 |
| 699 len = ctx->addr.len + 1 + ctx->port.len; | |
| 700 | |
| 547 | 701 peers->peer[0].name.len = len; |
| 527 | 702 |
| 547 | 703 peers->peer[0].name.data = ngx_palloc(s->connection->pool, len); |
| 704 if (peers->peer[0].name.data == NULL) { | |
| 705 ngx_destroy_pool(ctx->pool); | |
| 527 | 706 ngx_imap_session_internal_server_error(s); |
| 707 return; | |
| 708 } | |
| 709 | |
| 710 len = ctx->addr.len; | |
| 711 | |
| 547 | 712 ngx_memcpy(peers->peer[0].name.data, ctx->addr.data, len); |
| 527 | 713 |
| 547 | 714 peers->peer[0].name.data[len++] = ':'; |
| 527 | 715 |
| 547 | 716 ngx_memcpy(peers->peer[0].name.data + len, |
| 527 | 717 ctx->port.data, ctx->port.len); |
| 718 | |
| 547 | 719 peers->peer[0].uri_separator = ""; |
| 527 | 720 |
| 547 | 721 ngx_destroy_pool(ctx->pool); |
| 722 ngx_imap_proxy_init(s, peers); | |
| 527 | 723 |
| 724 return; | |
| 725 } | |
| 726 | |
| 727 if (rc == NGX_AGAIN ) { | |
| 728 return; | |
| 729 } | |
| 730 | |
| 731 /* rc == NGX_ERROR */ | |
| 732 | |
| 733 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 541 | 734 "auth http server %V sent invalid header in response", |
| 735 &ctx->peer.peers->peer[0].name); | |
| 527 | 736 ngx_close_connection(ctx->peer.connection); |
| 547 | 737 ngx_destroy_pool(ctx->pool); |
| 527 | 738 ngx_imap_session_internal_server_error(s); |
| 739 | |
| 740 return; | |
| 741 } | |
| 742 } | |
| 743 | |
| 521 | 744 |
| 527 | 745 static void |
| 746 ngx_imap_auth_sleep_handler(ngx_event_t *rev) | |
| 747 { | |
| 543 | 748 ngx_connection_t *c; |
| 749 ngx_imap_session_t *s; | |
| 750 ngx_imap_core_srv_conf_t *cscf; | |
| 527 | 751 |
| 752 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap auth sleep handler"); | |
| 753 | |
| 754 c = rev->data; | |
| 755 s = c->data; | |
| 756 | |
| 757 if (rev->timedout) { | |
| 758 | |
| 759 rev->timedout = 0; | |
| 760 | |
| 761 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { | |
| 762 s->imap_state = ngx_pop3_start; | |
| 763 s->connection->read->handler = ngx_pop3_auth_state; | |
| 764 | |
| 765 } else { | |
| 766 s->imap_state = ngx_imap_start; | |
| 767 s->connection->read->handler = ngx_imap_auth_state; | |
| 768 } | |
| 769 | |
| 800 | 770 s->auth_method = NGX_IMAP_AUTH_PLAIN; |
| 771 | |
| 543 | 772 c->log->action = "in auth state"; |
| 773 | |
| 774 ngx_imap_send(s->connection->write); | |
| 775 | |
| 583 | 776 if (c->destroyed) { |
| 543 | 777 return; |
| 778 } | |
| 779 | |
| 780 cscf = ngx_imap_get_module_srv_conf(s, ngx_imap_core_module); | |
| 781 | |
| 782 ngx_add_timer(rev, cscf->timeout); | |
| 783 | |
| 527 | 784 if (rev->ready) { |
| 785 s->connection->read->handler(rev); | |
| 786 return; | |
| 787 } | |
| 788 | |
| 789 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 790 ngx_imap_close_connection(s->connection); | |
| 791 } | |
| 792 | |
| 793 return; | |
| 794 } | |
| 795 | |
| 796 if (rev->active) { | |
| 797 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 798 ngx_imap_close_connection(s->connection); | |
| 799 } | |
| 800 } | |
| 801 } | |
| 802 | |
| 803 | |
| 804 static ngx_int_t | |
| 805 ngx_imap_auth_http_parse_header_line(ngx_imap_session_t *s, | |
| 806 ngx_imap_auth_http_ctx_t *ctx) | |
| 807 { | |
| 808 u_char c, ch, *p; | |
| 809 ngx_uint_t hash; | |
| 810 enum { | |
| 811 sw_start = 0, | |
| 812 sw_name, | |
| 813 sw_space_before_value, | |
| 814 sw_value, | |
| 815 sw_space_after_value, | |
| 577 | 816 sw_almost_done, |
| 527 | 817 sw_header_almost_done |
| 818 } state; | |
| 819 | |
| 577 | 820 state = ctx->state; |
| 527 | 821 hash = ctx->hash; |
| 822 | |
| 823 for (p = ctx->response->pos; p < ctx->response->last; p++) { | |
| 824 ch = *p; | |
| 825 | |
| 826 switch (state) { | |
| 827 | |
| 828 /* first char */ | |
| 829 case sw_start: | |
| 830 | |
| 831 switch (ch) { | |
| 832 case CR: | |
| 577 | 833 ctx->header_end = p; |
| 527 | 834 state = sw_header_almost_done; |
| 835 break; | |
| 577 | 836 case LF: |
| 527 | 837 ctx->header_end = p; |
| 838 goto header_done; | |
| 839 default: | |
| 840 state = sw_name; | |
| 841 ctx->header_name_start = p; | |
| 842 | |
| 843 c = (u_char) (ch | 0x20); | |
| 844 if (c >= 'a' && c <= 'z') { | |
| 845 hash = c; | |
| 846 break; | |
| 847 } | |
| 848 | |
| 849 if (ch >= '0' && ch <= '9') { | |
| 850 hash = ch; | |
| 851 break; | |
| 852 } | |
| 853 | |
| 854 return NGX_ERROR; | |
| 855 } | |
| 856 break; | |
| 857 | |
| 858 /* header name */ | |
| 859 case sw_name: | |
| 860 c = (u_char) (ch | 0x20); | |
| 861 if (c >= 'a' && c <= 'z') { | |
| 862 hash += c; | |
| 863 break; | |
| 864 } | |
| 865 | |
| 866 if (ch == ':') { | |
| 867 ctx->header_name_end = p; | |
| 868 state = sw_space_before_value; | |
| 869 break; | |
| 870 } | |
| 871 | |
| 872 if (ch == '-') { | |
| 873 hash += ch; | |
| 874 break; | |
| 875 } | |
| 876 | |
| 877 if (ch >= '0' && ch <= '9') { | |
| 878 hash += ch; | |
| 879 break; | |
| 880 } | |
| 881 | |
| 882 if (ch == CR) { | |
| 883 ctx->header_name_end = p; | |
| 884 ctx->header_start = p; | |
| 885 ctx->header_end = p; | |
| 886 state = sw_almost_done; | |
| 887 break; | |
| 888 } | |
| 889 | |
| 890 if (ch == LF) { | |
| 891 ctx->header_name_end = p; | |
| 892 ctx->header_start = p; | |
| 893 ctx->header_end = p; | |
| 894 goto done; | |
| 895 } | |
| 896 | |
| 897 return NGX_ERROR; | |
| 898 | |
| 899 /* space* before header value */ | |
| 900 case sw_space_before_value: | |
| 901 switch (ch) { | |
| 902 case ' ': | |
| 903 break; | |
| 904 case CR: | |
| 905 ctx->header_start = p; | |
| 906 ctx->header_end = p; | |
| 907 state = sw_almost_done; | |
| 908 break; | |
| 909 case LF: | |
| 910 ctx->header_start = p; | |
| 911 ctx->header_end = p; | |
| 912 goto done; | |
| 913 default: | |
| 914 ctx->header_start = p; | |
| 915 state = sw_value; | |
| 916 break; | |
| 917 } | |
| 918 break; | |
| 919 | |
| 920 /* header value */ | |
| 921 case sw_value: | |
| 922 switch (ch) { | |
| 923 case ' ': | |
| 924 ctx->header_end = p; | |
| 925 state = sw_space_after_value; | |
| 926 break; | |
| 927 case CR: | |
| 928 ctx->header_end = p; | |
| 929 state = sw_almost_done; | |
| 930 break; | |
| 931 case LF: | |
| 932 ctx->header_end = p; | |
| 933 goto done; | |
| 934 } | |
| 935 break; | |
| 936 | |
| 937 /* space* before end of header line */ | |
| 938 case sw_space_after_value: | |
| 939 switch (ch) { | |
| 940 case ' ': | |
| 941 break; | |
| 942 case CR: | |
| 943 state = sw_almost_done; | |
| 944 break; | |
| 945 case LF: | |
| 946 goto done; | |
| 947 default: | |
| 948 state = sw_value; | |
| 949 break; | |
| 950 } | |
| 951 break; | |
| 952 | |
| 953 /* end of header line */ | |
| 954 case sw_almost_done: | |
| 955 switch (ch) { | |
| 956 case LF: | |
| 957 goto done; | |
| 958 default: | |
| 959 return NGX_ERROR; | |
| 960 } | |
| 961 | |
| 962 /* end of header */ | |
| 963 case sw_header_almost_done: | |
| 964 switch (ch) { | |
| 965 case LF: | |
| 966 goto header_done; | |
| 967 default: | |
| 968 return NGX_ERROR; | |
| 969 } | |
| 970 } | |
| 971 } | |
| 972 | |
| 973 ctx->response->pos = p; | |
| 974 ctx->state = state; | |
| 975 ctx->hash = hash; | |
| 976 | |
| 977 return NGX_AGAIN; | |
| 978 | |
| 979 done: | |
| 980 | |
| 981 ctx->response->pos = p + 1; | |
| 982 ctx->state = sw_start; | |
| 983 ctx->hash = hash; | |
| 984 | |
| 985 return NGX_OK; | |
| 986 | |
| 987 header_done: | |
| 988 | |
| 989 ctx->response->pos = p + 1; | |
| 990 ctx->state = sw_start; | |
| 991 | |
| 992 return NGX_DONE; | |
| 521 | 993 } |
| 994 | |
| 995 | |
| 996 static void | |
| 997 ngx_imap_auth_http_block_read(ngx_event_t *rev) | |
| 998 { | |
| 999 ngx_connection_t *c; | |
| 1000 ngx_imap_session_t *s; | |
| 1001 ngx_imap_auth_http_ctx_t *ctx; | |
| 1002 | |
| 1003 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
| 1004 "imap auth http block read"); | |
| 1005 | |
| 1006 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { | |
| 1007 c = rev->data; | |
| 1008 s = c->data; | |
| 1009 | |
| 1010 ctx = ngx_imap_get_module_ctx(s, ngx_imap_auth_http_module); | |
| 1011 | |
| 525 | 1012 ngx_close_connection(ctx->peer.connection); |
| 547 | 1013 ngx_destroy_pool(ctx->pool); |
| 525 | 1014 ngx_imap_session_internal_server_error(s); |
| 521 | 1015 } |
| 1016 } | |
| 1017 | |
| 1018 | |
| 1019 static void | |
| 1020 ngx_imap_auth_http_dummy_handler(ngx_event_t *ev) | |
| 1021 { | |
| 1022 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, ev->log, 0, | |
| 1023 "imap auth http dummy handler"); | |
| 1024 } | |
| 1025 | |
| 1026 | |
| 1027 static ngx_buf_t * | |
| 547 | 1028 ngx_imap_auth_http_create_request(ngx_imap_session_t *s, ngx_pool_t *pool, |
| 521 | 1029 ngx_imap_auth_http_conf_t *ahcf) |
| 1030 { | |
| 1031 size_t len; | |
| 1032 ngx_buf_t *b; | |
| 633 | 1033 ngx_str_t login, passwd; |
| 1034 | |
| 1035 if (ngx_imap_auth_http_escape(pool, &s->login, &login) != NGX_OK) { | |
| 1036 return NULL; | |
| 1037 } | |
| 1038 | |
| 1039 if (ngx_imap_auth_http_escape(pool, &s->passwd, &passwd) != NGX_OK) { | |
| 1040 return NULL; | |
| 1041 } | |
| 521 | 1042 |
| 1043 len = sizeof("GET ") - 1 + ahcf->uri.len + sizeof(" HTTP/1.0" CRLF) - 1 | |
| 1044 + 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
|
1045 + sizeof("Auth-Method: ") - 1 |
|
0197d6aae54e
use correct auth method length
Igor Sysoev <igor@sysoev.ru>
parents:
854
diff
changeset
|
1046 + ngx_imap_auth_http_method[s->auth_method].len |
|
0197d6aae54e
use correct auth method length
Igor Sysoev <igor@sysoev.ru>
parents:
854
diff
changeset
|
1047 + sizeof(CRLF) - 1 |
| 633 | 1048 + sizeof("Auth-User: ") - 1 + login.len + sizeof(CRLF) - 1 |
| 1049 + sizeof("Auth-Pass: ") - 1 + passwd.len + sizeof(CRLF) - 1 | |
| 800 | 1050 + sizeof("Auth-Salt: ") - 1 + s->salt.len |
| 521 | 1051 + sizeof("Auth-Protocol: imap" CRLF) - 1 |
| 527 | 1052 + sizeof("Auth-Login-Attempt: ") - 1 + NGX_INT_T_LEN |
| 1053 + sizeof(CRLF) - 1 | |
| 521 | 1054 + sizeof("Client-IP: ") - 1 + s->connection->addr_text.len |
| 1055 + sizeof(CRLF) - 1 | |
| 1056 + sizeof(CRLF) - 1; | |
| 1057 | |
| 547 | 1058 b = ngx_create_temp_buf(pool, len); |
| 521 | 1059 if (b == NULL) { |
| 1060 return NULL; | |
| 1061 } | |
| 1062 | |
| 1063 b->last = ngx_cpymem(b->last, "GET ", sizeof("GET ") - 1); | |
| 573 | 1064 b->last = ngx_copy(b->last, ahcf->uri.data, ahcf->uri.len); |
| 521 | 1065 b->last = ngx_cpymem(b->last, " HTTP/1.0" CRLF, |
| 1066 sizeof(" HTTP/1.0" CRLF) - 1); | |
| 1067 | |
| 1068 b->last = ngx_cpymem(b->last, "Host: ", sizeof("Host: ") - 1); | |
| 573 | 1069 b->last = ngx_copy(b->last, ahcf->host_header.data, |
| 521 | 1070 ahcf->host_header.len); |
| 1071 *b->last++ = CR; *b->last++ = LF; | |
| 1072 | |
| 800 | 1073 b->last = ngx_cpymem(b->last, "Auth-Method: ", |
| 1074 sizeof("Auth-Method: ") - 1); | |
| 1075 b->last = ngx_cpymem(b->last, | |
| 1076 ngx_imap_auth_http_method[s->auth_method].data, | |
| 1077 ngx_imap_auth_http_method[s->auth_method].len); | |
| 1078 *b->last++ = CR; *b->last++ = LF; | |
| 521 | 1079 |
| 1080 b->last = ngx_cpymem(b->last, "Auth-User: ", sizeof("Auth-User: ") - 1); | |
| 633 | 1081 b->last = ngx_copy(b->last, login.data, login.len); |
| 521 | 1082 *b->last++ = CR; *b->last++ = LF; |
| 1083 | |
| 1084 b->last = ngx_cpymem(b->last, "Auth-Pass: ", sizeof("Auth-Pass: ") - 1); | |
| 633 | 1085 b->last = ngx_copy(b->last, passwd.data, passwd.len); |
| 521 | 1086 *b->last++ = CR; *b->last++ = LF; |
| 1087 | |
| 809 | 1088 if (s->auth_method != NGX_IMAP_AUTH_PLAIN && s->salt.len) { |
| 800 | 1089 b->last = ngx_cpymem(b->last, "Auth-Salt: ", sizeof("Auth-Salt: ") - 1); |
| 1090 b->last = ngx_copy(b->last, s->salt.data, s->salt.len); | |
| 1091 | |
| 1092 s->passwd.data = NULL; | |
| 1093 } | |
| 1094 | |
| 521 | 1095 b->last = ngx_cpymem(b->last, "Auth-Protocol: ", |
| 1096 sizeof("Auth-Protocol: ") - 1); | |
| 1097 b->last = ngx_cpymem(b->last, ngx_imap_auth_http_protocol[s->protocol], | |
| 1098 sizeof("imap") - 1); | |
| 1099 *b->last++ = CR; *b->last++ = LF; | |
| 1100 | |
| 527 | 1101 b->last = ngx_sprintf(b->last, "Auth-Login-Attempt: %ui" CRLF, |
| 1102 s->login_attempt); | |
| 1103 | |
| 521 | 1104 b->last = ngx_cpymem(b->last, "Client-IP: ", sizeof("Client-IP: ") - 1); |
| 573 | 1105 b->last = ngx_copy(b->last, s->connection->addr_text.data, |
| 521 | 1106 s->connection->addr_text.len); |
| 1107 *b->last++ = CR; *b->last++ = LF; | |
| 1108 | |
| 573 | 1109 if (ahcf->header.len) { |
| 1110 b->last = ngx_copy(b->last, ahcf->header.data, ahcf->header.len); | |
| 1111 } | |
| 1112 | |
| 521 | 1113 /* add "\r\n" at the header end */ |
| 1114 *b->last++ = CR; *b->last++ = LF; | |
| 1115 | |
| 547 | 1116 #if (NGX_DEBUG_IMAP_PASSWD) |
| 521 | 1117 { |
| 1118 ngx_str_t l; | |
| 1119 | |
| 1120 l.len = b->last - b->pos; | |
| 1121 l.data = b->pos; | |
| 527 | 1122 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, |
| 521 | 1123 "imap auth http header:\n\"%V\"", &l); |
| 1124 } | |
| 1125 #endif | |
| 1126 | |
| 1127 return b; | |
| 1128 } | |
| 1129 | |
| 1130 | |
| 633 | 1131 static ngx_int_t |
| 1132 ngx_imap_auth_http_escape(ngx_pool_t *pool, ngx_str_t *text, ngx_str_t *escaped) | |
| 1133 { | |
| 1134 u_char ch, *p; | |
| 1135 ngx_uint_t i, n; | |
| 1136 | |
| 1137 n = 0; | |
| 1138 | |
| 1139 for (i = 0; i < text->len; i++) { | |
| 1140 ch = text->data[i]; | |
| 1141 | |
| 1142 if (ch == CR || ch == LF) { | |
| 1143 n++; | |
| 1144 } | |
| 1145 } | |
| 1146 | |
| 1147 if (n == 0) { | |
| 1148 *escaped = *text; | |
| 1149 return NGX_OK; | |
| 1150 } | |
| 1151 | |
| 1152 escaped->len = text->len + n * 2; | |
| 1153 | |
| 1154 p = ngx_palloc(pool, escaped->len); | |
| 1155 if (p == NULL) { | |
| 1156 return NGX_ERROR; | |
| 1157 } | |
| 1158 | |
| 1159 escaped->data = p; | |
| 1160 | |
| 1161 for (i = 0; i < text->len; i++) { | |
| 1162 ch = text->data[i]; | |
| 1163 | |
| 1164 if (ch == CR) { | |
| 1165 *p++ = '%'; | |
| 1166 *p++ = '0'; | |
| 1167 *p++ = 'D'; | |
| 1168 continue; | |
| 1169 } | |
| 1170 | |
| 1171 if (ch == LF) { | |
| 1172 *p++ = '%'; | |
| 1173 *p++ = '0'; | |
| 1174 *p++ = 'A'; | |
| 1175 continue; | |
| 1176 } | |
| 1177 | |
| 1178 *p++ = ch; | |
| 1179 } | |
| 1180 | |
| 1181 return NGX_OK; | |
| 1182 } | |
| 1183 | |
| 1184 | |
| 521 | 1185 static void * |
| 1186 ngx_imap_auth_http_create_conf(ngx_conf_t *cf) | |
| 577 | 1187 { |
| 521 | 1188 ngx_imap_auth_http_conf_t *ahcf; |
| 577 | 1189 |
| 521 | 1190 ahcf = ngx_pcalloc(cf->pool, sizeof(ngx_imap_auth_http_conf_t)); |
| 1191 if (ahcf == NULL) { | |
| 1192 return NGX_CONF_ERROR; | |
| 1193 } | |
| 1194 | |
| 1195 ahcf->timeout = NGX_CONF_UNSET_MSEC; | |
| 1196 | |
| 1197 return ahcf; | |
| 1198 } | |
| 1199 | |
| 1200 | |
| 1201 static char * | |
| 1202 ngx_imap_auth_http_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 1203 { | |
| 1204 ngx_imap_auth_http_conf_t *prev = parent; | |
| 1205 ngx_imap_auth_http_conf_t *conf = child; | |
| 1206 | |
| 573 | 1207 u_char *p; |
| 1208 size_t len; | |
| 1209 ngx_uint_t i; | |
| 1210 ngx_table_elt_t *header; | |
| 1211 | |
| 521 | 1212 if (conf->peers == NULL) { |
| 1213 conf->peers = prev->peers; | |
| 1214 conf->host_header = prev->host_header; | |
| 1215 conf->uri = prev->uri; | |
| 1216 } | |
| 1217 | |
| 1218 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000); | |
| 1219 | |
| 573 | 1220 if (conf->headers == NULL) { |
| 1221 conf->headers = prev->headers; | |
| 1222 conf->header = prev->header; | |
| 1223 } | |
| 1224 | |
| 1225 if (conf->headers && conf->header.len == 0) { | |
| 1226 len = 0; | |
| 1227 header = conf->headers->elts; | |
| 1228 for (i = 0; i < conf->headers->nelts; i++) { | |
| 1229 len += header[i].key.len + 2 + header[i].value.len + 2; | |
| 1230 } | |
| 1231 | |
| 1232 p = ngx_palloc(cf->pool, len); | |
| 1233 if (p == NULL) { | |
| 1234 return NGX_CONF_ERROR; | |
| 1235 } | |
| 1236 | |
| 1237 conf->header.len = len; | |
| 1238 conf->header.data = p; | |
| 1239 | |
| 1240 for (i = 0; i < conf->headers->nelts; i++) { | |
| 1241 p = ngx_cpymem(p, header[i].key.data, header[i].key.len); | |
| 1242 *p++ = ':'; *p++ = ' '; | |
| 1243 p = ngx_cpymem(p, header[i].value.data, header[i].value.len); | |
| 1244 *p++ = CR; *p++ = LF; | |
| 1245 } | |
| 1246 } | |
| 1247 | |
| 521 | 1248 return NGX_CONF_OK; |
| 1249 } | |
| 1250 | |
| 1251 | |
| 1252 static char * | |
| 1253 ngx_imap_auth_http(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 577 | 1254 { |
| 521 | 1255 ngx_imap_auth_http_conf_t *ahcf = conf; |
| 1256 | |
|
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1257 ngx_str_t *value; |
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1258 ngx_url_t u; |
| 573 | 1259 |
| 521 | 1260 value = cf->args->elts; |
| 1261 | |
|
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1262 ngx_memzero(&u, sizeof(ngx_url_t)); |
| 521 | 1263 |
|
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|
1264 u.url = value[1]; |
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1265 u.default_portn = 80; |
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1266 u.uri_part = 1; |
| 577 | 1267 |
|
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1268 if (ngx_parse_url(cf, &u) != NGX_OK) { |
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1269 if (u.err) { |
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1270 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
|
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1271 "%s in auth_http \"%V\"", u.err, &u.url); |
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1272 } |
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1273 } |
| 521 | 1274 |
|
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1275 ahcf->peers = u.peers; |
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1276 ahcf->peers->number = 1; |
| 521 | 1277 |
|
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|
1278 ahcf->host_header = u.host_header; |
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|
1279 ahcf->uri = u.uri; |
| 521 | 1280 |
| 559 | 1281 if (ahcf->uri.len == 0) { |
| 555 | 1282 ahcf->uri.len = sizeof("/") - 1; |
| 1283 ahcf->uri.data = (u_char *) "/"; | |
| 1284 } | |
| 1285 | |
| 521 | 1286 return NGX_CONF_OK; |
| 1287 } | |
| 573 | 1288 |
| 1289 | |
| 1290 static char * | |
| 1291 ngx_imap_auth_http_header(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 577 | 1292 { |
| 573 | 1293 ngx_imap_auth_http_conf_t *ahcf = conf; |
| 1294 | |
| 1295 ngx_str_t *value; | |
| 1296 ngx_table_elt_t *header; | |
| 1297 | |
| 1298 if (ahcf->headers == NULL) { | |
| 1299 ahcf->headers = ngx_array_create(cf->pool, 1, sizeof(ngx_table_elt_t)); | |
| 1300 if (ahcf->headers == NULL) { | |
| 1301 return NGX_CONF_ERROR; | |
| 1302 } | |
| 1303 } | |
| 1304 | |
| 1305 header = ngx_array_push(ahcf->headers); | |
| 1306 if (header == NULL) { | |
| 1307 return NGX_CONF_ERROR; | |
| 1308 } | |
| 1309 | |
| 1310 value = cf->args->elts; | |
| 1311 | |
| 1312 header->key = value[1]; | |
| 1313 header->value = value[2]; | |
| 1314 | |
| 1315 return NGX_CONF_OK; | |
| 1316 } |