|
290
|
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_mail.h>
|
|
|
12
|
|
|
13
|
|
|
14 typedef struct {
|
|
|
15 ngx_peer_addr_t *peer;
|
|
|
16
|
|
|
17 ngx_msec_t timeout;
|
|
|
18
|
|
|
19 ngx_str_t host_header;
|
|
|
20 ngx_str_t uri;
|
|
|
21 ngx_str_t header;
|
|
|
22
|
|
|
23 ngx_array_t *headers;
|
|
|
24 } ngx_mail_auth_http_conf_t;
|
|
|
25
|
|
|
26
|
|
|
27 typedef struct ngx_mail_auth_http_ctx_s ngx_mail_auth_http_ctx_t;
|
|
|
28
|
|
|
29 typedef void (*ngx_mail_auth_http_handler_pt)(ngx_mail_session_t *s,
|
|
|
30 ngx_mail_auth_http_ctx_t *ctx);
|
|
|
31
|
|
|
32 struct ngx_mail_auth_http_ctx_s {
|
|
|
33 ngx_buf_t *request;
|
|
|
34 ngx_buf_t *response;
|
|
|
35 ngx_peer_connection_t peer;
|
|
|
36
|
|
|
37 ngx_mail_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;
|
|
|
50 ngx_str_t errmsg;
|
|
|
51 ngx_str_t errcode;
|
|
|
52
|
|
|
53 time_t sleep;
|
|
|
54
|
|
|
55 ngx_pool_t *pool;
|
|
|
56 };
|
|
|
57
|
|
|
58
|
|
|
59 static void ngx_mail_auth_http_write_handler(ngx_event_t *wev);
|
|
|
60 static void ngx_mail_auth_http_read_handler(ngx_event_t *rev);
|
|
|
61 static void ngx_mail_auth_http_ignore_status_line(ngx_mail_session_t *s,
|
|
|
62 ngx_mail_auth_http_ctx_t *ctx);
|
|
|
63 static void ngx_mail_auth_http_process_headers(ngx_mail_session_t *s,
|
|
|
64 ngx_mail_auth_http_ctx_t *ctx);
|
|
|
65 static void ngx_mail_auth_sleep_handler(ngx_event_t *rev);
|
|
|
66 static ngx_int_t ngx_mail_auth_http_parse_header_line(ngx_mail_session_t *s,
|
|
|
67 ngx_mail_auth_http_ctx_t *ctx);
|
|
|
68 static void ngx_mail_auth_http_block_read(ngx_event_t *rev);
|
|
|
69 static void ngx_mail_auth_http_dummy_handler(ngx_event_t *ev);
|
|
|
70 static ngx_buf_t *ngx_mail_auth_http_create_request(ngx_mail_session_t *s,
|
|
|
71 ngx_pool_t *pool, ngx_mail_auth_http_conf_t *ahcf);
|
|
|
72 static ngx_int_t ngx_mail_auth_http_escape(ngx_pool_t *pool, ngx_str_t *text,
|
|
|
73 ngx_str_t *escaped);
|
|
|
74
|
|
|
75 static void *ngx_mail_auth_http_create_conf(ngx_conf_t *cf);
|
|
|
76 static char *ngx_mail_auth_http_merge_conf(ngx_conf_t *cf, void *parent,
|
|
|
77 void *child);
|
|
|
78 static char *ngx_mail_auth_http(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
|
|
|
79 static char *ngx_mail_auth_http_header(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
|
80 void *conf);
|
|
|
81
|
|
|
82
|
|
|
83 static ngx_command_t ngx_mail_auth_http_commands[] = {
|
|
|
84
|
|
|
85 { ngx_string("auth_http"),
|
|
|
86 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1,
|
|
|
87 ngx_mail_auth_http,
|
|
|
88 NGX_MAIL_SRV_CONF_OFFSET,
|
|
|
89 0,
|
|
|
90 NULL },
|
|
|
91
|
|
|
92 { ngx_string("auth_http_timeout"),
|
|
|
93 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1,
|
|
|
94 ngx_conf_set_msec_slot,
|
|
|
95 NGX_MAIL_SRV_CONF_OFFSET,
|
|
|
96 offsetof(ngx_mail_auth_http_conf_t, timeout),
|
|
|
97 NULL },
|
|
|
98
|
|
|
99 { ngx_string("auth_http_header"),
|
|
|
100 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE2,
|
|
|
101 ngx_mail_auth_http_header,
|
|
|
102 NGX_MAIL_SRV_CONF_OFFSET,
|
|
|
103 0,
|
|
|
104 NULL },
|
|
|
105
|
|
|
106 ngx_null_command
|
|
|
107 };
|
|
|
108
|
|
|
109
|
|
|
110 static ngx_mail_module_t ngx_mail_auth_http_module_ctx = {
|
|
|
111 NULL, /* create main configuration */
|
|
|
112 NULL, /* init main configuration */
|
|
|
113
|
|
|
114 ngx_mail_auth_http_create_conf, /* create server configuration */
|
|
|
115 ngx_mail_auth_http_merge_conf /* merge server configuration */
|
|
|
116 };
|
|
|
117
|
|
|
118
|
|
|
119 ngx_module_t ngx_mail_auth_http_module = {
|
|
|
120 NGX_MODULE_V1,
|
|
|
121 &ngx_mail_auth_http_module_ctx, /* module context */
|
|
|
122 ngx_mail_auth_http_commands, /* module directives */
|
|
|
123 NGX_MAIL_MODULE, /* module type */
|
|
|
124 NULL, /* init master */
|
|
|
125 NULL, /* init module */
|
|
|
126 NULL, /* init process */
|
|
|
127 NULL, /* init thread */
|
|
|
128 NULL, /* exit thread */
|
|
|
129 NULL, /* exit process */
|
|
|
130 NULL, /* exit master */
|
|
|
131 NGX_MODULE_V1_PADDING
|
|
|
132 };
|
|
|
133
|
|
|
134
|
|
|
135 static char *ngx_mail_auth_http_protocol[] = { "pop3", "imap", "smtp" };
|
|
|
136 static ngx_str_t ngx_mail_auth_http_method[] = {
|
|
|
137 ngx_string("plain"),
|
|
|
138 ngx_string("plain"),
|
|
|
139 ngx_string("apop"),
|
|
|
140 ngx_string("cram-md5")
|
|
|
141 };
|
|
|
142
|
|
|
143 static ngx_str_t ngx_mail_smtp_errcode = ngx_string("535 5.7.0");
|
|
|
144
|
|
|
145 void
|
|
|
146 ngx_mail_auth_http_init(ngx_mail_session_t *s)
|
|
|
147 {
|
|
|
148 ngx_int_t rc;
|
|
|
149 ngx_pool_t *pool;
|
|
|
150 ngx_mail_auth_http_ctx_t *ctx;
|
|
|
151 ngx_mail_auth_http_conf_t *ahcf;
|
|
|
152
|
|
|
153 s->connection->log->action = "in http auth state";
|
|
|
154
|
|
|
155 pool = ngx_create_pool(2048, s->connection->log);
|
|
|
156 if (pool == NULL) {
|
|
|
157 ngx_mail_session_internal_server_error(s);
|
|
|
158 return;
|
|
|
159 }
|
|
|
160
|
|
|
161 ctx = ngx_pcalloc(pool, sizeof(ngx_mail_auth_http_ctx_t));
|
|
|
162 if (ctx == NULL) {
|
|
|
163 ngx_destroy_pool(pool);
|
|
|
164 ngx_mail_session_internal_server_error(s);
|
|
|
165 return;
|
|
|
166 }
|
|
|
167
|
|
|
168 ctx->pool = pool;
|
|
|
169
|
|
|
170 ahcf = ngx_mail_get_module_srv_conf(s, ngx_mail_auth_http_module);
|
|
|
171
|
|
|
172 ctx->request = ngx_mail_auth_http_create_request(s, pool, ahcf);
|
|
|
173 if (ctx->request == NULL) {
|
|
|
174 ngx_destroy_pool(ctx->pool);
|
|
|
175 ngx_mail_session_internal_server_error(s);
|
|
|
176 return;
|
|
|
177 }
|
|
|
178
|
|
|
179 ngx_mail_set_ctx(s, ctx, ngx_mail_auth_http_module);
|
|
|
180
|
|
|
181 ctx->peer.sockaddr = ahcf->peer->sockaddr;
|
|
|
182 ctx->peer.socklen = ahcf->peer->socklen;
|
|
|
183 ctx->peer.name = &ahcf->peer->name;
|
|
|
184 ctx->peer.get = ngx_event_get_peer;
|
|
|
185 ctx->peer.log = s->connection->log;
|
|
|
186 ctx->peer.log_error = NGX_ERROR_ERR;
|
|
|
187
|
|
|
188 rc = ngx_event_connect_peer(&ctx->peer);
|
|
|
189
|
|
|
190 if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) {
|
|
|
191 if (ctx->peer.connection) {
|
|
|
192 ngx_close_connection(ctx->peer.connection);
|
|
|
193 }
|
|
|
194
|
|
|
195 ngx_destroy_pool(ctx->pool);
|
|
|
196 ngx_mail_session_internal_server_error(s);
|
|
|
197 return;
|
|
|
198 }
|
|
|
199
|
|
|
200 ctx->peer.connection->data = s;
|
|
|
201 ctx->peer.connection->pool = s->connection->pool;
|
|
|
202
|
|
|
203 s->connection->read->handler = ngx_mail_auth_http_block_read;
|
|
|
204 ctx->peer.connection->read->handler = ngx_mail_auth_http_read_handler;
|
|
|
205 ctx->peer.connection->write->handler = ngx_mail_auth_http_write_handler;
|
|
|
206
|
|
|
207 ctx->handler = ngx_mail_auth_http_ignore_status_line;
|
|
|
208
|
|
|
209 ngx_add_timer(ctx->peer.connection->read, ahcf->timeout);
|
|
|
210 ngx_add_timer(ctx->peer.connection->write, ahcf->timeout);
|
|
|
211
|
|
|
212 if (rc == NGX_OK) {
|
|
|
213 ngx_mail_auth_http_write_handler(ctx->peer.connection->write);
|
|
|
214 return;
|
|
|
215 }
|
|
|
216 }
|
|
|
217
|
|
|
218
|
|
|
219 static void
|
|
|
220 ngx_mail_auth_http_write_handler(ngx_event_t *wev)
|
|
|
221 {
|
|
|
222 ssize_t n, size;
|
|
|
223 ngx_connection_t *c;
|
|
|
224 ngx_mail_session_t *s;
|
|
|
225 ngx_mail_auth_http_ctx_t *ctx;
|
|
|
226 ngx_mail_auth_http_conf_t *ahcf;
|
|
|
227
|
|
|
228 c = wev->data;
|
|
|
229 s = c->data;
|
|
|
230
|
|
|
231 ctx = ngx_mail_get_module_ctx(s, ngx_mail_auth_http_module);
|
|
|
232
|
|
|
233 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, wev->log, 0,
|
|
|
234 "mail auth http write handler");
|
|
|
235
|
|
|
236 if (wev->timedout) {
|
|
|
237 ngx_log_error(NGX_LOG_ERR, wev->log, NGX_ETIMEDOUT,
|
|
|
238 "auth http server %V timed out", ctx->peer.name);
|
|
|
239 ngx_close_connection(ctx->peer.connection);
|
|
|
240 ngx_destroy_pool(ctx->pool);
|
|
|
241 ngx_mail_session_internal_server_error(s);
|
|
|
242 return;
|
|
|
243 }
|
|
|
244
|
|
|
245 size = ctx->request->last - ctx->request->pos;
|
|
|
246
|
|
|
247 n = ngx_send(c, ctx->request->pos, size);
|
|
|
248
|
|
|
249 if (n == NGX_ERROR) {
|
|
|
250 ngx_close_connection(ctx->peer.connection);
|
|
|
251 ngx_destroy_pool(ctx->pool);
|
|
|
252 ngx_mail_session_internal_server_error(s);
|
|
|
253 return;
|
|
|
254 }
|
|
|
255
|
|
|
256 if (n > 0) {
|
|
|
257 ctx->request->pos += n;
|
|
|
258
|
|
|
259 if (n == size) {
|
|
|
260 wev->handler = ngx_mail_auth_http_dummy_handler;
|
|
|
261
|
|
|
262 if (wev->timer_set) {
|
|
|
263 ngx_del_timer(wev);
|
|
|
264 }
|
|
|
265
|
|
|
266 if (ngx_handle_write_event(wev, 0) == NGX_ERROR) {
|
|
|
267 ngx_close_connection(ctx->peer.connection);
|
|
|
268 ngx_destroy_pool(ctx->pool);
|
|
|
269 ngx_mail_session_internal_server_error(s);
|
|
|
270 }
|
|
|
271
|
|
|
272 return;
|
|
|
273 }
|
|
|
274 }
|
|
|
275
|
|
|
276 if (!wev->timer_set) {
|
|
|
277 ahcf = ngx_mail_get_module_srv_conf(s, ngx_mail_auth_http_module);
|
|
|
278 ngx_add_timer(wev, ahcf->timeout);
|
|
|
279 }
|
|
|
280 }
|
|
|
281
|
|
|
282
|
|
|
283 static void
|
|
|
284 ngx_mail_auth_http_read_handler(ngx_event_t *rev)
|
|
|
285 {
|
|
|
286 ssize_t n, size;
|
|
|
287 ngx_connection_t *c;
|
|
|
288 ngx_mail_session_t *s;
|
|
|
289 ngx_mail_auth_http_ctx_t *ctx;
|
|
|
290
|
|
|
291 c = rev->data;
|
|
|
292 s = c->data;
|
|
|
293
|
|
|
294 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0,
|
|
|
295 "mail auth http read handler");
|
|
|
296
|
|
|
297 ctx = ngx_mail_get_module_ctx(s, ngx_mail_auth_http_module);
|
|
|
298
|
|
|
299 if (rev->timedout) {
|
|
|
300 ngx_log_error(NGX_LOG_ERR, rev->log, NGX_ETIMEDOUT,
|
|
|
301 "auth http server %V timed out", ctx->peer.name);
|
|
|
302 ngx_close_connection(ctx->peer.connection);
|
|
|
303 ngx_destroy_pool(ctx->pool);
|
|
|
304 ngx_mail_session_internal_server_error(s);
|
|
|
305 return;
|
|
|
306 }
|
|
|
307
|
|
|
308 if (ctx->response == NULL) {
|
|
|
309 ctx->response = ngx_create_temp_buf(ctx->pool, 1024);
|
|
|
310 if (ctx->response == NULL) {
|
|
|
311 ngx_close_connection(ctx->peer.connection);
|
|
|
312 ngx_destroy_pool(ctx->pool);
|
|
|
313 ngx_mail_session_internal_server_error(s);
|
|
|
314 return;
|
|
|
315 }
|
|
|
316 }
|
|
|
317
|
|
|
318 size = ctx->response->end - ctx->response->last;
|
|
|
319
|
|
|
320 n = ngx_recv(c, ctx->response->pos, size);
|
|
|
321
|
|
|
322 if (n > 0) {
|
|
|
323 ctx->response->last += n;
|
|
|
324
|
|
|
325 ctx->handler(s, ctx);
|
|
|
326 return;
|
|
|
327 }
|
|
|
328
|
|
|
329 if (n == NGX_AGAIN) {
|
|
|
330 return;
|
|
|
331 }
|
|
|
332
|
|
|
333 ngx_close_connection(ctx->peer.connection);
|
|
|
334 ngx_destroy_pool(ctx->pool);
|
|
|
335 ngx_mail_session_internal_server_error(s);
|
|
|
336 }
|
|
|
337
|
|
|
338
|
|
|
339 static void
|
|
|
340 ngx_mail_auth_http_ignore_status_line(ngx_mail_session_t *s,
|
|
|
341 ngx_mail_auth_http_ctx_t *ctx)
|
|
|
342 {
|
|
|
343 u_char *p, ch;
|
|
|
344 enum {
|
|
|
345 sw_start = 0,
|
|
|
346 sw_H,
|
|
|
347 sw_HT,
|
|
|
348 sw_HTT,
|
|
|
349 sw_HTTP,
|
|
|
350 sw_skip,
|
|
|
351 sw_almost_done
|
|
|
352 } state;
|
|
|
353
|
|
|
354 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, s->connection->log, 0,
|
|
|
355 "mail auth http process status line");
|
|
|
356
|
|
|
357 state = ctx->state;
|
|
|
358
|
|
|
359 for (p = ctx->response->pos; p < ctx->response->last; p++) {
|
|
|
360 ch = *p;
|
|
|
361
|
|
|
362 switch (state) {
|
|
|
363
|
|
|
364 /* "HTTP/" */
|
|
|
365 case sw_start:
|
|
|
366 if (ch == 'H') {
|
|
|
367 state = sw_H;
|
|
|
368 break;
|
|
|
369 }
|
|
|
370 goto next;
|
|
|
371
|
|
|
372 case sw_H:
|
|
|
373 if (ch == 'T') {
|
|
|
374 state = sw_HT;
|
|
|
375 break;
|
|
|
376 }
|
|
|
377 goto next;
|
|
|
378
|
|
|
379 case sw_HT:
|
|
|
380 if (ch == 'T') {
|
|
|
381 state = sw_HTT;
|
|
|
382 break;
|
|
|
383 }
|
|
|
384 goto next;
|
|
|
385
|
|
|
386 case sw_HTT:
|
|
|
387 if (ch == 'P') {
|
|
|
388 state = sw_HTTP;
|
|
|
389 break;
|
|
|
390 }
|
|
|
391 goto next;
|
|
|
392
|
|
|
393 case sw_HTTP:
|
|
|
394 if (ch == '/') {
|
|
|
395 state = sw_skip;
|
|
|
396 break;
|
|
|
397 }
|
|
|
398 goto next;
|
|
|
399
|
|
|
400 /* any text until end of line */
|
|
|
401 case sw_skip:
|
|
|
402 switch (ch) {
|
|
|
403 case CR:
|
|
|
404 state = sw_almost_done;
|
|
|
405
|
|
|
406 break;
|
|
|
407 case LF:
|
|
|
408 goto done;
|
|
|
409 }
|
|
|
410 break;
|
|
|
411
|
|
|
412 /* end of status line */
|
|
|
413 case sw_almost_done:
|
|
|
414 if (ch == LF) {
|
|
|
415 goto done;
|
|
|
416 }
|
|
|
417
|
|
|
418 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
419 "auth http server &V sent invalid response",
|
|
|
420 ctx->peer.name);
|
|
|
421 ngx_close_connection(ctx->peer.connection);
|
|
|
422 ngx_destroy_pool(ctx->pool);
|
|
|
423 ngx_mail_session_internal_server_error(s);
|
|
|
424 return;
|
|
|
425 }
|
|
|
426 }
|
|
|
427
|
|
|
428 ctx->response->pos = p;
|
|
|
429 ctx->state = state;
|
|
|
430
|
|
|
431 return;
|
|
|
432
|
|
|
433 next:
|
|
|
434
|
|
|
435 p = ctx->response->start - 1;
|
|
|
436
|
|
|
437 done:
|
|
|
438
|
|
|
439 ctx->response->pos = p + 1;
|
|
|
440 ctx->state = 0;
|
|
|
441 ctx->handler = ngx_mail_auth_http_process_headers;
|
|
|
442 ctx->handler(s, ctx);
|
|
|
443 }
|
|
|
444
|
|
|
445
|
|
|
446 static void
|
|
|
447 ngx_mail_auth_http_process_headers(ngx_mail_session_t *s,
|
|
|
448 ngx_mail_auth_http_ctx_t *ctx)
|
|
|
449 {
|
|
|
450 u_char *p;
|
|
|
451 time_t timer;
|
|
|
452 size_t len, size;
|
|
|
453 ngx_int_t rc, port, n;
|
|
|
454 ngx_peer_addr_t *peer;
|
|
|
455 struct sockaddr_in *sin;
|
|
|
456
|
|
|
457 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, s->connection->log, 0,
|
|
|
458 "mail auth http process headers");
|
|
|
459
|
|
|
460 for ( ;; ) {
|
|
|
461 rc = ngx_mail_auth_http_parse_header_line(s, ctx);
|
|
|
462
|
|
|
463 if (rc == NGX_OK) {
|
|
|
464
|
|
|
465 #if (NGX_DEBUG)
|
|
|
466 {
|
|
|
467 ngx_str_t key, value;
|
|
|
468
|
|
|
469 key.len = ctx->header_name_end - ctx->header_name_start;
|
|
|
470 key.data = ctx->header_name_start;
|
|
|
471 value.len = ctx->header_end - ctx->header_start;
|
|
|
472 value.data = ctx->header_start;
|
|
|
473
|
|
|
474 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, s->connection->log, 0,
|
|
|
475 "mail auth http header: \"%V: %V\"",
|
|
|
476 &key, &value);
|
|
|
477 }
|
|
|
478 #endif
|
|
|
479
|
|
|
480 len = ctx->header_name_end - ctx->header_name_start;
|
|
|
481
|
|
|
482 if (len == sizeof("Auth-Status") - 1
|
|
|
483 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
484 (u_char *) "Auth-Status",
|
|
|
485 sizeof("Auth-Status") - 1)
|
|
|
486 == 0)
|
|
|
487 {
|
|
|
488 len = ctx->header_end - ctx->header_start;
|
|
|
489
|
|
|
490 if (len == 2
|
|
|
491 && ctx->header_start[0] == 'O'
|
|
|
492 && ctx->header_start[1] == 'K')
|
|
|
493 {
|
|
|
494 continue;
|
|
|
495 }
|
|
|
496
|
|
|
497 if (len == 4
|
|
|
498 && ctx->header_start[0] == 'W'
|
|
|
499 && ctx->header_start[1] == 'A'
|
|
|
500 && ctx->header_start[2] == 'I'
|
|
|
501 && ctx->header_start[3] == 'T')
|
|
|
502 {
|
|
|
503 s->auth_wait = 1;
|
|
|
504 continue;
|
|
|
505 }
|
|
|
506
|
|
|
507 ctx->errmsg.len = len;
|
|
|
508 ctx->errmsg.data = ctx->header_start;
|
|
|
509
|
|
|
510 switch (s->protocol) {
|
|
|
511
|
|
|
512 case NGX_MAIL_POP3_PROTOCOL:
|
|
|
513 size = sizeof("-ERR ") - 1 + len + sizeof(CRLF) - 1;
|
|
|
514 break;
|
|
|
515
|
|
|
516 case NGX_MAIL_IMAP_PROTOCOL:
|
|
|
517 size = s->tag.len + sizeof("NO ") - 1 + len
|
|
|
518 + sizeof(CRLF) - 1;
|
|
|
519 break;
|
|
|
520
|
|
|
521 default: /* NGX_MAIL_SMTP_PROTOCOL */
|
|
|
522 ctx->err = ctx->errmsg;
|
|
|
523 continue;
|
|
|
524 }
|
|
|
525
|
|
|
526 p = ngx_pcalloc(s->connection->pool, size);
|
|
|
527 if (p == NULL) {
|
|
|
528 ngx_close_connection(ctx->peer.connection);
|
|
|
529 ngx_destroy_pool(ctx->pool);
|
|
|
530 ngx_mail_session_internal_server_error(s);
|
|
|
531 return;
|
|
|
532 }
|
|
|
533
|
|
|
534 ctx->err.data = p;
|
|
|
535
|
|
|
536 switch (s->protocol) {
|
|
|
537
|
|
|
538 case NGX_MAIL_POP3_PROTOCOL:
|
|
|
539 *p++ = '-'; *p++ = 'E'; *p++ = 'R'; *p++ = 'R'; *p++ = ' ';
|
|
|
540 break;
|
|
|
541
|
|
|
542 case NGX_MAIL_IMAP_PROTOCOL:
|
|
|
543 p = ngx_cpymem(p, s->tag.data, s->tag.len);
|
|
|
544 *p++ = 'N'; *p++ = 'O'; *p++ = ' ';
|
|
|
545 break;
|
|
|
546
|
|
|
547 default: /* NGX_MAIL_SMTP_PROTOCOL */
|
|
|
548 break;
|
|
|
549 }
|
|
|
550
|
|
|
551 p = ngx_cpymem(p, ctx->header_start, len);
|
|
|
552 *p++ = CR; *p++ = LF;
|
|
|
553
|
|
|
554 ctx->err.len = p - ctx->err.data;
|
|
|
555
|
|
|
556 continue;
|
|
|
557 }
|
|
|
558
|
|
|
559 if (len == sizeof("Auth-Server") - 1
|
|
|
560 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
561 (u_char *) "Auth-Server",
|
|
|
562 sizeof("Auth-Server") - 1)
|
|
|
563 == 0)
|
|
|
564 {
|
|
|
565 ctx->addr.len = ctx->header_end - ctx->header_start;
|
|
|
566 ctx->addr.data = ctx->header_start;
|
|
|
567
|
|
|
568 continue;
|
|
|
569 }
|
|
|
570
|
|
|
571 if (len == sizeof("Auth-Port") - 1
|
|
|
572 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
573 (u_char *) "Auth-Port",
|
|
|
574 sizeof("Auth-Port") - 1)
|
|
|
575 == 0)
|
|
|
576 {
|
|
|
577 ctx->port.len = ctx->header_end - ctx->header_start;
|
|
|
578 ctx->port.data = ctx->header_start;
|
|
|
579
|
|
|
580 continue;
|
|
|
581 }
|
|
|
582
|
|
|
583 if (len == sizeof("Auth-User") - 1
|
|
|
584 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
585 (u_char *) "Auth-User",
|
|
|
586 sizeof("Auth-User") - 1)
|
|
|
587 == 0)
|
|
|
588 {
|
|
|
589 s->login.len = ctx->header_end - ctx->header_start;
|
|
|
590
|
|
|
591 s->login.data = ngx_palloc(s->connection->pool, s->login.len);
|
|
|
592 if (s->login.data == NULL) {
|
|
|
593 ngx_close_connection(ctx->peer.connection);
|
|
|
594 ngx_destroy_pool(ctx->pool);
|
|
|
595 ngx_mail_session_internal_server_error(s);
|
|
|
596 return;
|
|
|
597 }
|
|
|
598
|
|
|
599 ngx_memcpy(s->login.data, ctx->header_start, s->login.len);
|
|
|
600
|
|
|
601 continue;
|
|
|
602 }
|
|
|
603
|
|
|
604 if (len == sizeof("Auth-Pass") - 1
|
|
|
605 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
606 (u_char *) "Auth-Pass",
|
|
|
607 sizeof("Auth-Pass") - 1)
|
|
|
608 == 0)
|
|
|
609 {
|
|
|
610 s->passwd.len = ctx->header_end - ctx->header_start;
|
|
|
611
|
|
|
612 s->passwd.data = ngx_palloc(s->connection->pool, s->passwd.len);
|
|
|
613 if (s->passwd.data == NULL) {
|
|
|
614 ngx_close_connection(ctx->peer.connection);
|
|
|
615 ngx_destroy_pool(ctx->pool);
|
|
|
616 ngx_mail_session_internal_server_error(s);
|
|
|
617 return;
|
|
|
618 }
|
|
|
619
|
|
|
620 ngx_memcpy(s->passwd.data, ctx->header_start, s->passwd.len);
|
|
|
621
|
|
|
622 continue;
|
|
|
623 }
|
|
|
624
|
|
|
625 if (len == sizeof("Auth-Wait") - 1
|
|
|
626 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
627 (u_char *) "Auth-Wait",
|
|
|
628 sizeof("Auth-Wait") - 1)
|
|
|
629 == 0)
|
|
|
630 {
|
|
|
631 n = ngx_atoi(ctx->header_start,
|
|
|
632 ctx->header_end - ctx->header_start);
|
|
|
633
|
|
|
634 if (n != NGX_ERROR) {
|
|
|
635 ctx->sleep = n;
|
|
|
636 }
|
|
|
637
|
|
|
638 continue;
|
|
|
639 }
|
|
|
640
|
|
|
641 if (len == sizeof("Auth-Error-Code") - 1
|
|
|
642 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
643 (u_char *) "Auth-Error-Code",
|
|
|
644 sizeof("Auth-Error-Code") - 1)
|
|
|
645 == 0)
|
|
|
646 {
|
|
|
647 ctx->errcode.len = ctx->header_end - ctx->header_start;
|
|
|
648
|
|
|
649 ctx->errcode.data = ngx_palloc(s->connection->pool,
|
|
|
650 ctx->errcode.len);
|
|
|
651 if (ctx->errcode.data == NULL) {
|
|
|
652 ngx_close_connection(ctx->peer.connection);
|
|
|
653 ngx_destroy_pool(ctx->pool);
|
|
|
654 ngx_mail_session_internal_server_error(s);
|
|
|
655 return;
|
|
|
656 }
|
|
|
657
|
|
|
658 ngx_memcpy(ctx->errcode.data, ctx->header_start,
|
|
|
659 ctx->errcode.len);
|
|
|
660
|
|
|
661 continue;
|
|
|
662 }
|
|
|
663
|
|
|
664 /* ignore other headers */
|
|
|
665
|
|
|
666 continue;
|
|
|
667 }
|
|
|
668
|
|
|
669 if (rc == NGX_DONE) {
|
|
|
670 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, s->connection->log, 0,
|
|
|
671 "mail auth http header done");
|
|
|
672
|
|
|
673 ngx_close_connection(ctx->peer.connection);
|
|
|
674
|
|
|
675 if (ctx->err.len) {
|
|
|
676
|
|
|
677 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0,
|
|
|
678 "client login failed: \"%V\"", &ctx->errmsg);
|
|
|
679
|
|
|
680 if (s->protocol == NGX_MAIL_SMTP_PROTOCOL) {
|
|
|
681
|
|
|
682 if (ctx->errcode.len == 0) {
|
|
|
683 ctx->errcode = ngx_mail_smtp_errcode;
|
|
|
684 }
|
|
|
685
|
|
|
686 ctx->err.len = ctx->errcode.len + ctx->errmsg.len
|
|
|
687 + sizeof(" " CRLF) - 1;
|
|
|
688
|
|
296
|
689 p = ngx_palloc(s->connection->pool, ctx->err.len);
|
|
|
690 if (p == NULL) {
|
|
|
691 ngx_close_connection(ctx->peer.connection);
|
|
|
692 ngx_destroy_pool(ctx->pool);
|
|
|
693 ngx_mail_session_internal_server_error(s);
|
|
|
694 return;
|
|
|
695 }
|
|
290
|
696
|
|
296
|
697 ctx->err.data = p;
|
|
290
|
698
|
|
296
|
699 p = ngx_cpymem(p, ctx->errcode.data, ctx->errcode.len);
|
|
290
|
700 *p++ = ' ';
|
|
296
|
701 p = ngx_cpymem(p, ctx->errmsg.data, ctx->errmsg.len);
|
|
290
|
702 *p++ = CR; *p = LF;
|
|
|
703 }
|
|
|
704
|
|
|
705 s->out = ctx->err;
|
|
|
706 timer = ctx->sleep;
|
|
|
707
|
|
|
708 ngx_destroy_pool(ctx->pool);
|
|
|
709
|
|
|
710 if (timer == 0) {
|
|
|
711 s->quit = 1;
|
|
|
712 ngx_mail_send(s->connection->write);
|
|
|
713 return;
|
|
|
714 }
|
|
|
715
|
|
|
716 ngx_add_timer(s->connection->read, timer * 1000);
|
|
|
717
|
|
|
718 s->connection->read->handler = ngx_mail_auth_sleep_handler;
|
|
|
719
|
|
|
720 return;
|
|
|
721 }
|
|
|
722
|
|
|
723 if (s->auth_wait) {
|
|
|
724 timer = ctx->sleep;
|
|
|
725
|
|
|
726 ngx_destroy_pool(ctx->pool);
|
|
|
727
|
|
|
728 if (timer == 0) {
|
|
|
729 ngx_mail_auth_http_init(s);
|
|
|
730 return;
|
|
|
731 }
|
|
|
732
|
|
|
733 ngx_add_timer(s->connection->read, timer * 1000);
|
|
|
734
|
|
|
735 s->connection->read->handler = ngx_mail_auth_sleep_handler;
|
|
|
736
|
|
|
737 return;
|
|
|
738 }
|
|
|
739
|
|
|
740 if (ctx->addr.len == 0 || ctx->port.len == 0) {
|
|
|
741 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
742 "auth http server %V did not send server or port",
|
|
|
743 ctx->peer.name);
|
|
|
744 ngx_destroy_pool(ctx->pool);
|
|
|
745 ngx_mail_session_internal_server_error(s);
|
|
|
746 return;
|
|
|
747 }
|
|
|
748
|
|
|
749 if (s->passwd.data == NULL && s->protocol != NGX_MAIL_SMTP_PROTOCOL)
|
|
|
750 {
|
|
|
751 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
752 "auth http server %V did not send password",
|
|
|
753 ctx->peer.name);
|
|
|
754 ngx_destroy_pool(ctx->pool);
|
|
|
755 ngx_mail_session_internal_server_error(s);
|
|
|
756 return;
|
|
|
757 }
|
|
|
758
|
|
|
759 peer = ngx_pcalloc(s->connection->pool, sizeof(ngx_peer_addr_t));
|
|
|
760 if (peer == NULL) {
|
|
|
761 ngx_destroy_pool(ctx->pool);
|
|
|
762 ngx_mail_session_internal_server_error(s);
|
|
|
763 return;
|
|
|
764 }
|
|
|
765
|
|
|
766 sin = ngx_pcalloc(s->connection->pool, sizeof(struct sockaddr_in));
|
|
|
767 if (sin == NULL) {
|
|
|
768 ngx_destroy_pool(ctx->pool);
|
|
|
769 ngx_mail_session_internal_server_error(s);
|
|
|
770 return;
|
|
|
771 }
|
|
|
772
|
|
|
773 sin->sin_family = AF_INET;
|
|
|
774
|
|
|
775 port = ngx_atoi(ctx->port.data, ctx->port.len);
|
|
|
776 if (port == NGX_ERROR || port < 1 || port > 65536) {
|
|
|
777 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
778 "auth http server %V sent invalid server "
|
|
|
779 "port:\"%V\"",
|
|
|
780 ctx->peer.name, &ctx->port);
|
|
|
781 ngx_destroy_pool(ctx->pool);
|
|
|
782 ngx_mail_session_internal_server_error(s);
|
|
|
783 return;
|
|
|
784 }
|
|
|
785
|
|
|
786 sin->sin_port = htons((in_port_t) port);
|
|
|
787
|
|
|
788 ctx->addr.data[ctx->addr.len] = '\0';
|
|
|
789 sin->sin_addr.s_addr = inet_addr((char *) ctx->addr.data);
|
|
|
790 if (sin->sin_addr.s_addr == INADDR_NONE) {
|
|
|
791 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
792 "auth http server %V sent invalid server "
|
|
|
793 "address:\"%V\"",
|
|
|
794 ctx->peer.name, &ctx->addr);
|
|
|
795 ngx_destroy_pool(ctx->pool);
|
|
|
796 ngx_mail_session_internal_server_error(s);
|
|
|
797 return;
|
|
|
798 }
|
|
|
799
|
|
|
800 peer->sockaddr = (struct sockaddr *) sin;
|
|
|
801 peer->socklen = sizeof(struct sockaddr_in);
|
|
|
802
|
|
|
803 len = ctx->addr.len + 1 + ctx->port.len;
|
|
|
804
|
|
|
805 peer->name.len = len;
|
|
|
806
|
|
|
807 peer->name.data = ngx_palloc(s->connection->pool, len);
|
|
|
808 if (peer->name.data == NULL) {
|
|
|
809 ngx_destroy_pool(ctx->pool);
|
|
|
810 ngx_mail_session_internal_server_error(s);
|
|
|
811 return;
|
|
|
812 }
|
|
|
813
|
|
|
814 len = ctx->addr.len;
|
|
|
815
|
|
|
816 ngx_memcpy(peer->name.data, ctx->addr.data, len);
|
|
|
817
|
|
|
818 peer->name.data[len++] = ':';
|
|
|
819
|
|
|
820 ngx_memcpy(peer->name.data + len, ctx->port.data, ctx->port.len);
|
|
|
821
|
|
|
822 ngx_destroy_pool(ctx->pool);
|
|
|
823 ngx_mail_proxy_init(s, peer);
|
|
|
824
|
|
|
825 return;
|
|
|
826 }
|
|
|
827
|
|
|
828 if (rc == NGX_AGAIN ) {
|
|
|
829 return;
|
|
|
830 }
|
|
|
831
|
|
|
832 /* rc == NGX_ERROR */
|
|
|
833
|
|
|
834 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
835 "auth http server %V sent invalid header in response",
|
|
|
836 ctx->peer.name);
|
|
|
837 ngx_close_connection(ctx->peer.connection);
|
|
|
838 ngx_destroy_pool(ctx->pool);
|
|
|
839 ngx_mail_session_internal_server_error(s);
|
|
|
840
|
|
|
841 return;
|
|
|
842 }
|
|
|
843 }
|
|
|
844
|
|
|
845
|
|
|
846 static void
|
|
|
847 ngx_mail_auth_sleep_handler(ngx_event_t *rev)
|
|
|
848 {
|
|
|
849 ngx_connection_t *c;
|
|
|
850 ngx_mail_session_t *s;
|
|
|
851 ngx_mail_core_srv_conf_t *cscf;
|
|
|
852
|
|
|
853 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail auth sleep handler");
|
|
|
854
|
|
|
855 c = rev->data;
|
|
|
856 s = c->data;
|
|
|
857
|
|
|
858 if (rev->timedout) {
|
|
|
859
|
|
|
860 rev->timedout = 0;
|
|
|
861
|
|
|
862 if (s->auth_wait) {
|
|
|
863 s->auth_wait = 0;
|
|
|
864 ngx_mail_auth_http_init(s);
|
|
|
865 return;
|
|
|
866 }
|
|
|
867
|
|
|
868 switch (s->protocol) {
|
|
|
869
|
|
|
870 case NGX_MAIL_POP3_PROTOCOL:
|
|
|
871 s->mail_state = ngx_pop3_start;
|
|
|
872 s->connection->read->handler = ngx_pop3_auth_state;
|
|
|
873 break;
|
|
|
874
|
|
|
875 case NGX_MAIL_IMAP_PROTOCOL:
|
|
|
876 s->mail_state = ngx_imap_start;
|
|
|
877 s->connection->read->handler = ngx_imap_auth_state;
|
|
|
878 break;
|
|
|
879
|
|
|
880 default: /* NGX_MAIL_SMTP_PROTOCOL */
|
|
|
881 s->mail_state = ngx_smtp_start;
|
|
|
882 s->connection->read->handler = ngx_smtp_auth_state;
|
|
|
883 break;
|
|
|
884 }
|
|
|
885
|
|
|
886 s->auth_method = NGX_MAIL_AUTH_PLAIN;
|
|
|
887
|
|
|
888 c->log->action = "in auth state";
|
|
|
889
|
|
|
890 ngx_mail_send(s->connection->write);
|
|
|
891
|
|
|
892 if (c->destroyed) {
|
|
|
893 return;
|
|
|
894 }
|
|
|
895
|
|
|
896 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
|
|
|
897
|
|
|
898 ngx_add_timer(rev, cscf->timeout);
|
|
|
899
|
|
394
|
900 if (cscf->handler_read) {
|
|
|
901 s->connection->read->handler = cscf->handler_read;
|
|
|
902 }
|
|
|
903
|
|
290
|
904 if (rev->ready) {
|
|
|
905 s->connection->read->handler(rev);
|
|
|
906 return;
|
|
|
907 }
|
|
|
908
|
|
|
909 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
910 ngx_mail_close_connection(s->connection);
|
|
|
911 }
|
|
|
912
|
|
|
913 return;
|
|
|
914 }
|
|
|
915
|
|
|
916 if (rev->active) {
|
|
|
917 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
918 ngx_mail_close_connection(s->connection);
|
|
|
919 }
|
|
|
920 }
|
|
|
921 }
|
|
|
922
|
|
|
923
|
|
|
924 static ngx_int_t
|
|
|
925 ngx_mail_auth_http_parse_header_line(ngx_mail_session_t *s,
|
|
|
926 ngx_mail_auth_http_ctx_t *ctx)
|
|
|
927 {
|
|
|
928 u_char c, ch, *p;
|
|
|
929 ngx_uint_t hash;
|
|
|
930 enum {
|
|
|
931 sw_start = 0,
|
|
|
932 sw_name,
|
|
|
933 sw_space_before_value,
|
|
|
934 sw_value,
|
|
|
935 sw_space_after_value,
|
|
|
936 sw_almost_done,
|
|
|
937 sw_header_almost_done
|
|
|
938 } state;
|
|
|
939
|
|
|
940 state = ctx->state;
|
|
|
941 hash = ctx->hash;
|
|
|
942
|
|
|
943 for (p = ctx->response->pos; p < ctx->response->last; p++) {
|
|
|
944 ch = *p;
|
|
|
945
|
|
|
946 switch (state) {
|
|
|
947
|
|
|
948 /* first char */
|
|
|
949 case sw_start:
|
|
|
950
|
|
|
951 switch (ch) {
|
|
|
952 case CR:
|
|
|
953 ctx->header_end = p;
|
|
|
954 state = sw_header_almost_done;
|
|
|
955 break;
|
|
|
956 case LF:
|
|
|
957 ctx->header_end = p;
|
|
|
958 goto header_done;
|
|
|
959 default:
|
|
|
960 state = sw_name;
|
|
|
961 ctx->header_name_start = p;
|
|
|
962
|
|
|
963 c = (u_char) (ch | 0x20);
|
|
|
964 if (c >= 'a' && c <= 'z') {
|
|
|
965 hash = c;
|
|
|
966 break;
|
|
|
967 }
|
|
|
968
|
|
|
969 if (ch >= '0' && ch <= '9') {
|
|
|
970 hash = ch;
|
|
|
971 break;
|
|
|
972 }
|
|
|
973
|
|
|
974 return NGX_ERROR;
|
|
|
975 }
|
|
|
976 break;
|
|
|
977
|
|
|
978 /* header name */
|
|
|
979 case sw_name:
|
|
|
980 c = (u_char) (ch | 0x20);
|
|
|
981 if (c >= 'a' && c <= 'z') {
|
|
|
982 hash += c;
|
|
|
983 break;
|
|
|
984 }
|
|
|
985
|
|
|
986 if (ch == ':') {
|
|
|
987 ctx->header_name_end = p;
|
|
|
988 state = sw_space_before_value;
|
|
|
989 break;
|
|
|
990 }
|
|
|
991
|
|
|
992 if (ch == '-') {
|
|
|
993 hash += ch;
|
|
|
994 break;
|
|
|
995 }
|
|
|
996
|
|
|
997 if (ch >= '0' && ch <= '9') {
|
|
|
998 hash += ch;
|
|
|
999 break;
|
|
|
1000 }
|
|
|
1001
|
|
|
1002 if (ch == CR) {
|
|
|
1003 ctx->header_name_end = p;
|
|
|
1004 ctx->header_start = p;
|
|
|
1005 ctx->header_end = p;
|
|
|
1006 state = sw_almost_done;
|
|
|
1007 break;
|
|
|
1008 }
|
|
|
1009
|
|
|
1010 if (ch == LF) {
|
|
|
1011 ctx->header_name_end = p;
|
|
|
1012 ctx->header_start = p;
|
|
|
1013 ctx->header_end = p;
|
|
|
1014 goto done;
|
|
|
1015 }
|
|
|
1016
|
|
|
1017 return NGX_ERROR;
|
|
|
1018
|
|
|
1019 /* space* before header value */
|
|
|
1020 case sw_space_before_value:
|
|
|
1021 switch (ch) {
|
|
|
1022 case ' ':
|
|
|
1023 break;
|
|
|
1024 case CR:
|
|
|
1025 ctx->header_start = p;
|
|
|
1026 ctx->header_end = p;
|
|
|
1027 state = sw_almost_done;
|
|
|
1028 break;
|
|
|
1029 case LF:
|
|
|
1030 ctx->header_start = p;
|
|
|
1031 ctx->header_end = p;
|
|
|
1032 goto done;
|
|
|
1033 default:
|
|
|
1034 ctx->header_start = p;
|
|
|
1035 state = sw_value;
|
|
|
1036 break;
|
|
|
1037 }
|
|
|
1038 break;
|
|
|
1039
|
|
|
1040 /* header value */
|
|
|
1041 case sw_value:
|
|
|
1042 switch (ch) {
|
|
|
1043 case ' ':
|
|
|
1044 ctx->header_end = p;
|
|
|
1045 state = sw_space_after_value;
|
|
|
1046 break;
|
|
|
1047 case CR:
|
|
|
1048 ctx->header_end = p;
|
|
|
1049 state = sw_almost_done;
|
|
|
1050 break;
|
|
|
1051 case LF:
|
|
|
1052 ctx->header_end = p;
|
|
|
1053 goto done;
|
|
|
1054 }
|
|
|
1055 break;
|
|
|
1056
|
|
|
1057 /* space* before end of header line */
|
|
|
1058 case sw_space_after_value:
|
|
|
1059 switch (ch) {
|
|
|
1060 case ' ':
|
|
|
1061 break;
|
|
|
1062 case CR:
|
|
|
1063 state = sw_almost_done;
|
|
|
1064 break;
|
|
|
1065 case LF:
|
|
|
1066 goto done;
|
|
|
1067 default:
|
|
|
1068 state = sw_value;
|
|
|
1069 break;
|
|
|
1070 }
|
|
|
1071 break;
|
|
|
1072
|
|
|
1073 /* end of header line */
|
|
|
1074 case sw_almost_done:
|
|
|
1075 switch (ch) {
|
|
|
1076 case LF:
|
|
|
1077 goto done;
|
|
|
1078 default:
|
|
|
1079 return NGX_ERROR;
|
|
|
1080 }
|
|
|
1081
|
|
|
1082 /* end of header */
|
|
|
1083 case sw_header_almost_done:
|
|
|
1084 switch (ch) {
|
|
|
1085 case LF:
|
|
|
1086 goto header_done;
|
|
|
1087 default:
|
|
|
1088 return NGX_ERROR;
|
|
|
1089 }
|
|
|
1090 }
|
|
|
1091 }
|
|
|
1092
|
|
|
1093 ctx->response->pos = p;
|
|
|
1094 ctx->state = state;
|
|
|
1095 ctx->hash = hash;
|
|
|
1096
|
|
|
1097 return NGX_AGAIN;
|
|
|
1098
|
|
|
1099 done:
|
|
|
1100
|
|
|
1101 ctx->response->pos = p + 1;
|
|
|
1102 ctx->state = sw_start;
|
|
|
1103 ctx->hash = hash;
|
|
|
1104
|
|
|
1105 return NGX_OK;
|
|
|
1106
|
|
|
1107 header_done:
|
|
|
1108
|
|
|
1109 ctx->response->pos = p + 1;
|
|
|
1110 ctx->state = sw_start;
|
|
|
1111
|
|
|
1112 return NGX_DONE;
|
|
|
1113 }
|
|
|
1114
|
|
|
1115
|
|
|
1116 static void
|
|
|
1117 ngx_mail_auth_http_block_read(ngx_event_t *rev)
|
|
|
1118 {
|
|
|
1119 ngx_connection_t *c;
|
|
|
1120 ngx_mail_session_t *s;
|
|
|
1121 ngx_mail_auth_http_ctx_t *ctx;
|
|
|
1122
|
|
|
1123 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0,
|
|
|
1124 "mail auth http block read");
|
|
|
1125
|
|
|
1126 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
1127 c = rev->data;
|
|
|
1128 s = c->data;
|
|
|
1129
|
|
|
1130 ctx = ngx_mail_get_module_ctx(s, ngx_mail_auth_http_module);
|
|
|
1131
|
|
|
1132 ngx_close_connection(ctx->peer.connection);
|
|
|
1133 ngx_destroy_pool(ctx->pool);
|
|
|
1134 ngx_mail_session_internal_server_error(s);
|
|
|
1135 }
|
|
|
1136 }
|
|
|
1137
|
|
|
1138
|
|
|
1139 static void
|
|
|
1140 ngx_mail_auth_http_dummy_handler(ngx_event_t *ev)
|
|
|
1141 {
|
|
|
1142 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, ev->log, 0,
|
|
|
1143 "mail auth http dummy handler");
|
|
|
1144 }
|
|
|
1145
|
|
|
1146
|
|
|
1147 static ngx_buf_t *
|
|
|
1148 ngx_mail_auth_http_create_request(ngx_mail_session_t *s, ngx_pool_t *pool,
|
|
|
1149 ngx_mail_auth_http_conf_t *ahcf)
|
|
|
1150 {
|
|
|
1151 size_t len;
|
|
|
1152 ngx_buf_t *b;
|
|
|
1153 ngx_str_t login, passwd;
|
|
|
1154
|
|
|
1155 if (ngx_mail_auth_http_escape(pool, &s->login, &login) != NGX_OK) {
|
|
|
1156 return NULL;
|
|
|
1157 }
|
|
|
1158
|
|
|
1159 if (ngx_mail_auth_http_escape(pool, &s->passwd, &passwd) != NGX_OK) {
|
|
|
1160 return NULL;
|
|
|
1161 }
|
|
|
1162
|
|
|
1163 len = sizeof("GET ") - 1 + ahcf->uri.len + sizeof(" HTTP/1.0" CRLF) - 1
|
|
|
1164 + sizeof("Host: ") - 1 + ahcf->host_header.len + sizeof(CRLF) - 1
|
|
|
1165 + sizeof("Auth-Method: ") - 1
|
|
|
1166 + ngx_mail_auth_http_method[s->auth_method].len
|
|
|
1167 + sizeof(CRLF) - 1
|
|
|
1168 + sizeof("Auth-User: ") - 1 + login.len + sizeof(CRLF) - 1
|
|
|
1169 + sizeof("Auth-Pass: ") - 1 + passwd.len + sizeof(CRLF) - 1
|
|
|
1170 + sizeof("Auth-Salt: ") - 1 + s->salt.len
|
|
|
1171 + sizeof("Auth-Protocol: imap" CRLF) - 1
|
|
|
1172 + sizeof("Auth-Login-Attempt: ") - 1 + NGX_INT_T_LEN
|
|
|
1173 + sizeof(CRLF) - 1
|
|
|
1174 + sizeof("Client-IP: ") - 1 + s->connection->addr_text.len
|
|
|
1175 + sizeof(CRLF) - 1
|
|
318
|
1176 + ahcf->header.len
|
|
290
|
1177 + sizeof(CRLF) - 1;
|
|
|
1178
|
|
|
1179 b = ngx_create_temp_buf(pool, len);
|
|
|
1180 if (b == NULL) {
|
|
|
1181 return NULL;
|
|
|
1182 }
|
|
|
1183
|
|
|
1184 b->last = ngx_cpymem(b->last, "GET ", sizeof("GET ") - 1);
|
|
|
1185 b->last = ngx_copy(b->last, ahcf->uri.data, ahcf->uri.len);
|
|
|
1186 b->last = ngx_cpymem(b->last, " HTTP/1.0" CRLF,
|
|
|
1187 sizeof(" HTTP/1.0" CRLF) - 1);
|
|
|
1188
|
|
|
1189 b->last = ngx_cpymem(b->last, "Host: ", sizeof("Host: ") - 1);
|
|
|
1190 b->last = ngx_copy(b->last, ahcf->host_header.data,
|
|
|
1191 ahcf->host_header.len);
|
|
|
1192 *b->last++ = CR; *b->last++ = LF;
|
|
|
1193
|
|
|
1194 b->last = ngx_cpymem(b->last, "Auth-Method: ",
|
|
|
1195 sizeof("Auth-Method: ") - 1);
|
|
|
1196 b->last = ngx_cpymem(b->last,
|
|
|
1197 ngx_mail_auth_http_method[s->auth_method].data,
|
|
|
1198 ngx_mail_auth_http_method[s->auth_method].len);
|
|
|
1199 *b->last++ = CR; *b->last++ = LF;
|
|
|
1200
|
|
|
1201 b->last = ngx_cpymem(b->last, "Auth-User: ", sizeof("Auth-User: ") - 1);
|
|
|
1202 b->last = ngx_copy(b->last, login.data, login.len);
|
|
|
1203 *b->last++ = CR; *b->last++ = LF;
|
|
|
1204
|
|
|
1205 b->last = ngx_cpymem(b->last, "Auth-Pass: ", sizeof("Auth-Pass: ") - 1);
|
|
|
1206 b->last = ngx_copy(b->last, passwd.data, passwd.len);
|
|
|
1207 *b->last++ = CR; *b->last++ = LF;
|
|
|
1208
|
|
|
1209 if (s->auth_method != NGX_MAIL_AUTH_PLAIN && s->salt.len) {
|
|
|
1210 b->last = ngx_cpymem(b->last, "Auth-Salt: ", sizeof("Auth-Salt: ") - 1);
|
|
|
1211 b->last = ngx_copy(b->last, s->salt.data, s->salt.len);
|
|
|
1212
|
|
|
1213 s->passwd.data = NULL;
|
|
|
1214 }
|
|
|
1215
|
|
|
1216 b->last = ngx_cpymem(b->last, "Auth-Protocol: ",
|
|
|
1217 sizeof("Auth-Protocol: ") - 1);
|
|
|
1218 b->last = ngx_cpymem(b->last, ngx_mail_auth_http_protocol[s->protocol],
|
|
|
1219 sizeof("imap") - 1);
|
|
|
1220 *b->last++ = CR; *b->last++ = LF;
|
|
|
1221
|
|
|
1222 b->last = ngx_sprintf(b->last, "Auth-Login-Attempt: %ui" CRLF,
|
|
|
1223 s->login_attempt);
|
|
|
1224
|
|
|
1225 b->last = ngx_cpymem(b->last, "Client-IP: ", sizeof("Client-IP: ") - 1);
|
|
|
1226 b->last = ngx_copy(b->last, s->connection->addr_text.data,
|
|
|
1227 s->connection->addr_text.len);
|
|
|
1228 *b->last++ = CR; *b->last++ = LF;
|
|
|
1229
|
|
|
1230 if (ahcf->header.len) {
|
|
|
1231 b->last = ngx_copy(b->last, ahcf->header.data, ahcf->header.len);
|
|
|
1232 }
|
|
|
1233
|
|
|
1234 /* add "\r\n" at the header end */
|
|
|
1235 *b->last++ = CR; *b->last++ = LF;
|
|
|
1236
|
|
|
1237 #if (NGX_DEBUG_MAIL_PASSWD)
|
|
|
1238 {
|
|
|
1239 ngx_str_t l;
|
|
|
1240
|
|
|
1241 l.len = b->last - b->pos;
|
|
|
1242 l.data = b->pos;
|
|
|
1243 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, s->connection->log, 0,
|
|
|
1244 "mail auth http header:\n\"%V\"", &l);
|
|
|
1245 }
|
|
|
1246 #endif
|
|
|
1247
|
|
|
1248 return b;
|
|
|
1249 }
|
|
|
1250
|
|
|
1251
|
|
|
1252 static ngx_int_t
|
|
|
1253 ngx_mail_auth_http_escape(ngx_pool_t *pool, ngx_str_t *text, ngx_str_t *escaped)
|
|
|
1254 {
|
|
|
1255 u_char ch, *p;
|
|
|
1256 ngx_uint_t i, n;
|
|
|
1257
|
|
|
1258 n = 0;
|
|
|
1259
|
|
|
1260 for (i = 0; i < text->len; i++) {
|
|
|
1261 ch = text->data[i];
|
|
|
1262
|
|
|
1263 if (ch == CR || ch == LF) {
|
|
|
1264 n++;
|
|
|
1265 }
|
|
|
1266 }
|
|
|
1267
|
|
|
1268 if (n == 0) {
|
|
|
1269 *escaped = *text;
|
|
|
1270 return NGX_OK;
|
|
|
1271 }
|
|
|
1272
|
|
|
1273 escaped->len = text->len + n * 2;
|
|
|
1274
|
|
|
1275 p = ngx_palloc(pool, escaped->len);
|
|
|
1276 if (p == NULL) {
|
|
|
1277 return NGX_ERROR;
|
|
|
1278 }
|
|
|
1279
|
|
|
1280 escaped->data = p;
|
|
|
1281
|
|
|
1282 for (i = 0; i < text->len; i++) {
|
|
|
1283 ch = text->data[i];
|
|
|
1284
|
|
|
1285 if (ch == CR) {
|
|
|
1286 *p++ = '%';
|
|
|
1287 *p++ = '0';
|
|
|
1288 *p++ = 'D';
|
|
|
1289 continue;
|
|
|
1290 }
|
|
|
1291
|
|
|
1292 if (ch == LF) {
|
|
|
1293 *p++ = '%';
|
|
|
1294 *p++ = '0';
|
|
|
1295 *p++ = 'A';
|
|
|
1296 continue;
|
|
|
1297 }
|
|
|
1298
|
|
|
1299 *p++ = ch;
|
|
|
1300 }
|
|
|
1301
|
|
|
1302 return NGX_OK;
|
|
|
1303 }
|
|
|
1304
|
|
|
1305
|
|
|
1306 static void *
|
|
|
1307 ngx_mail_auth_http_create_conf(ngx_conf_t *cf)
|
|
|
1308 {
|
|
|
1309 ngx_mail_auth_http_conf_t *ahcf;
|
|
|
1310
|
|
|
1311 ahcf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_auth_http_conf_t));
|
|
|
1312 if (ahcf == NULL) {
|
|
|
1313 return NGX_CONF_ERROR;
|
|
|
1314 }
|
|
|
1315
|
|
|
1316 ahcf->timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1317
|
|
|
1318 return ahcf;
|
|
|
1319 }
|
|
|
1320
|
|
|
1321
|
|
|
1322 static char *
|
|
|
1323 ngx_mail_auth_http_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
1324 {
|
|
|
1325 ngx_mail_auth_http_conf_t *prev = parent;
|
|
|
1326 ngx_mail_auth_http_conf_t *conf = child;
|
|
|
1327
|
|
|
1328 u_char *p;
|
|
|
1329 size_t len;
|
|
|
1330 ngx_uint_t i;
|
|
|
1331 ngx_table_elt_t *header;
|
|
|
1332
|
|
|
1333 if (conf->peer == NULL) {
|
|
|
1334 conf->peer = prev->peer;
|
|
|
1335 conf->host_header = prev->host_header;
|
|
|
1336 conf->uri = prev->uri;
|
|
|
1337 }
|
|
|
1338
|
|
|
1339 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000);
|
|
|
1340
|
|
|
1341 if (conf->headers == NULL) {
|
|
|
1342 conf->headers = prev->headers;
|
|
|
1343 conf->header = prev->header;
|
|
|
1344 }
|
|
|
1345
|
|
|
1346 if (conf->headers && conf->header.len == 0) {
|
|
|
1347 len = 0;
|
|
|
1348 header = conf->headers->elts;
|
|
|
1349 for (i = 0; i < conf->headers->nelts; i++) {
|
|
|
1350 len += header[i].key.len + 2 + header[i].value.len + 2;
|
|
|
1351 }
|
|
|
1352
|
|
|
1353 p = ngx_palloc(cf->pool, len);
|
|
|
1354 if (p == NULL) {
|
|
|
1355 return NGX_CONF_ERROR;
|
|
|
1356 }
|
|
|
1357
|
|
|
1358 conf->header.len = len;
|
|
|
1359 conf->header.data = p;
|
|
|
1360
|
|
|
1361 for (i = 0; i < conf->headers->nelts; i++) {
|
|
|
1362 p = ngx_cpymem(p, header[i].key.data, header[i].key.len);
|
|
|
1363 *p++ = ':'; *p++ = ' ';
|
|
|
1364 p = ngx_cpymem(p, header[i].value.data, header[i].value.len);
|
|
|
1365 *p++ = CR; *p++ = LF;
|
|
|
1366 }
|
|
|
1367 }
|
|
|
1368
|
|
|
1369 return NGX_CONF_OK;
|
|
|
1370 }
|
|
|
1371
|
|
|
1372
|
|
|
1373 static char *
|
|
|
1374 ngx_mail_auth_http(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1375 {
|
|
|
1376 ngx_mail_auth_http_conf_t *ahcf = conf;
|
|
|
1377
|
|
|
1378 ngx_str_t *value;
|
|
|
1379 ngx_url_t u;
|
|
|
1380
|
|
|
1381 value = cf->args->elts;
|
|
|
1382
|
|
|
1383 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
|
1384
|
|
|
1385 u.url = value[1];
|
|
|
1386 u.default_port = 80;
|
|
|
1387 u.uri_part = 1;
|
|
|
1388 u.one_addr = 1;
|
|
|
1389
|
|
|
1390 if (ngx_parse_url(cf, &u) != NGX_OK) {
|
|
|
1391 if (u.err) {
|
|
|
1392 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1393 "%s in auth_http \"%V\"", u.err, &u.url);
|
|
|
1394 }
|
|
|
1395 }
|
|
|
1396
|
|
|
1397 ahcf->peer = u.addrs;
|
|
|
1398
|
|
|
1399 ahcf->host_header = u.host;
|
|
|
1400 ahcf->uri = u.uri;
|
|
|
1401
|
|
|
1402 if (ahcf->uri.len == 0) {
|
|
|
1403 ahcf->uri.len = sizeof("/") - 1;
|
|
|
1404 ahcf->uri.data = (u_char *) "/";
|
|
|
1405 }
|
|
|
1406
|
|
|
1407 return NGX_CONF_OK;
|
|
|
1408 }
|
|
|
1409
|
|
|
1410
|
|
|
1411 static char *
|
|
|
1412 ngx_mail_auth_http_header(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1413 {
|
|
|
1414 ngx_mail_auth_http_conf_t *ahcf = conf;
|
|
|
1415
|
|
|
1416 ngx_str_t *value;
|
|
|
1417 ngx_table_elt_t *header;
|
|
|
1418
|
|
|
1419 if (ahcf->headers == NULL) {
|
|
|
1420 ahcf->headers = ngx_array_create(cf->pool, 1, sizeof(ngx_table_elt_t));
|
|
|
1421 if (ahcf->headers == NULL) {
|
|
|
1422 return NGX_CONF_ERROR;
|
|
|
1423 }
|
|
|
1424 }
|
|
|
1425
|
|
|
1426 header = ngx_array_push(ahcf->headers);
|
|
|
1427 if (header == NULL) {
|
|
|
1428 return NGX_CONF_ERROR;
|
|
|
1429 }
|
|
|
1430
|
|
|
1431 value = cf->args->elts;
|
|
|
1432
|
|
|
1433 header->key = value[1];
|
|
|
1434 header->value = value[2];
|
|
|
1435
|
|
|
1436 return NGX_CONF_OK;
|
|
|
1437 }
|
