Mercurial > hg > nginx
annotate src/imap/ngx_imap_proxy_module.c @ 543:511a89da35ad release-0.2.0
nginx-0.2.0-RELEASE import
*) The pid-file names used during online upgrade was changed and now is
not required a manual rename operation. The old master process adds
the ".oldbin" suffix to its pid-file and executes a new binary file.
The new master process creates usual pid-file without the ".newbin"
suffix. If the master process exits, then old master process renames
back its pid-file with the ".oldbin" suffix to the pid-file without
suffix.
*) Change: the "worker_connections" directive, new name of the
"connections" directive; now the directive specifies maximum number
of connections, but not maximum socket descriptor number.
*) Feature: SSL supports the session cache inside one worker process.
*) Feature: the "satisfy_any" directive.
*) Change: the ngx_http_access_module and ngx_http_auth_basic_module do
not run for subrequests.
*) Feature: the "worker_rlimit_nofile" and "worker_rlimit_sigpending"
directives.
*) Bugfix: if all backend using in load-balancing failed after one
error, then nginx did not try do connect to them during 60 seconds.
*) Bugfix: in IMAP/POP3 command argument parsing.
Thanks to Rob Mueller.
*) Bugfix: errors while using SSL in IMAP/POP3 proxy.
*) Bugfix: errors while using SSI and gzipping.
*) Bugfix: the "Expires" and "Cache-Control" header lines were omitted
from the 304 responses.
Thanks to Alexandr Kukushkin.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 23 Sep 2005 11:02:22 +0000 |
parents | b09ee85d0ac8 |
children | 818fbd4750b9 |
rev | line source |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
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10 #include <ngx_event_connect.h> |
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11 #include <ngx_imap.h> |
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13 |
521 | 14 typedef struct { |
15 ngx_flag_t enable; | |
539 | 16 size_t buffer_size; |
17 ngx_msec_t timeout; | |
521 | 18 } ngx_imap_proxy_conf_t; |
19 | |
20 | |
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21 static void ngx_imap_proxy_block_read(ngx_event_t *rev); |
527 | 22 static void ngx_imap_proxy_imap_handler(ngx_event_t *rev); |
23 static void ngx_imap_proxy_pop3_handler(ngx_event_t *rev); | |
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24 static void ngx_imap_proxy_dummy_handler(ngx_event_t *ev); |
527 | 25 static ngx_int_t ngx_imap_proxy_read_response(ngx_imap_session_t *s, |
26 ngx_uint_t what); | |
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27 static void ngx_imap_proxy_handler(ngx_event_t *ev); |
527 | 28 static void ngx_imap_proxy_internal_server_error(ngx_imap_session_t *s); |
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29 static void ngx_imap_proxy_close_session(ngx_imap_session_t *s); |
521 | 30 static void *ngx_imap_proxy_create_conf(ngx_conf_t *cf); |
31 static char *ngx_imap_proxy_merge_conf(ngx_conf_t *cf, void *parent, | |
32 void *child); | |
33 | |
34 | |
527 | 35 #define NGX_IMAP_WAIT_OK 0 |
36 #define NGX_IMAP_WAIT_NEXT 1 | |
37 | |
38 | |
521 | 39 static ngx_command_t ngx_imap_proxy_commands[] = { |
539 | 40 |
521 | 41 { ngx_string("proxy"), |
42 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_FLAG, | |
43 ngx_conf_set_flag_slot, | |
44 NGX_IMAP_SRV_CONF_OFFSET, | |
45 offsetof(ngx_imap_proxy_conf_t, enable), | |
46 NULL }, | |
47 | |
539 | 48 { ngx_string("proxy_buffer"), |
49 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, | |
50 ngx_conf_set_size_slot, | |
51 NGX_IMAP_SRV_CONF_OFFSET, | |
52 offsetof(ngx_imap_proxy_conf_t, buffer_size), | |
53 NULL }, | |
54 | |
55 { ngx_string("proxy_timeout"), | |
56 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, | |
57 ngx_conf_set_msec_slot, | |
58 NGX_IMAP_SRV_CONF_OFFSET, | |
59 offsetof(ngx_imap_proxy_conf_t, timeout), | |
60 NULL }, | |
61 | |
521 | 62 ngx_null_command |
63 }; | |
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64 |
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65 |
521 | 66 static ngx_imap_module_t ngx_imap_proxy_module_ctx = { |
67 NULL, /* create main configuration */ | |
68 NULL, /* init main configuration */ | |
69 | |
70 ngx_imap_proxy_create_conf, /* create server configuration */ | |
71 ngx_imap_proxy_merge_conf /* merge server configuration */ | |
72 }; | |
73 | |
74 | |
75 ngx_module_t ngx_imap_proxy_module = { | |
76 NGX_MODULE_V1, | |
77 &ngx_imap_proxy_module_ctx, /* module context */ | |
78 ngx_imap_proxy_commands, /* module directives */ | |
79 NGX_IMAP_MODULE, /* module type */ | |
541 | 80 NULL, /* init master */ |
521 | 81 NULL, /* init module */ |
541 | 82 NULL, /* init process */ |
83 NULL, /* init thread */ | |
84 NULL, /* exit thread */ | |
85 NULL, /* exit process */ | |
86 NULL, /* exit master */ | |
87 NGX_MODULE_V1_PADDING | |
521 | 88 }; |
89 | |
90 | |
91 void | |
92 ngx_imap_proxy_init(ngx_imap_session_t *s, ngx_peers_t *peers) | |
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93 { |
527 | 94 ngx_int_t rc; |
95 ngx_imap_proxy_ctx_t *p; | |
96 ngx_imap_core_srv_conf_t *cscf; | |
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97 |
501 | 98 p = ngx_pcalloc(s->connection->pool, sizeof(ngx_imap_proxy_ctx_t)); |
99 if (p == NULL) { | |
527 | 100 ngx_imap_session_internal_server_error(s); |
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101 return; |
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102 } |
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103 |
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104 s->proxy = p; |
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105 |
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106 p->upstream.peers = peers; |
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107 p->upstream.log = s->connection->log; |
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108 p->upstream.log_error = NGX_ERROR_ERR; |
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109 |
541 | 110 s->connection->log->action = "in upstream auth state"; |
111 | |
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112 rc = ngx_event_connect_peer(&p->upstream); |
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113 |
543 | 114 if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) { |
115 ngx_imap_proxy_internal_server_error(s); | |
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116 return; |
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117 } |
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118 |
527 | 119 cscf = ngx_imap_get_module_srv_conf(s, ngx_imap_core_module); |
120 ngx_add_timer(p->upstream.connection->read, cscf->timeout); | |
121 | |
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122 p->upstream.connection->data = s; |
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123 p->upstream.connection->pool = s->connection->pool; |
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124 |
509 | 125 s->connection->read->handler = ngx_imap_proxy_block_read; |
126 p->upstream.connection->write->handler = ngx_imap_proxy_dummy_handler; | |
527 | 127 |
128 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { | |
129 p->upstream.connection->read->handler = ngx_imap_proxy_pop3_handler; | |
130 s->imap_state = ngx_pop3_start; | |
131 | |
132 } else { | |
133 p->upstream.connection->read->handler = ngx_imap_proxy_imap_handler; | |
134 s->imap_state = ngx_imap_start; | |
135 } | |
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136 } |
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137 |
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138 |
521 | 139 static void |
140 ngx_imap_proxy_block_read(ngx_event_t *rev) | |
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141 { |
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142 ngx_connection_t *c; |
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143 ngx_imap_session_t *s; |
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144 |
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145 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy block read"); |
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146 |
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147 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { |
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148 c = rev->data; |
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149 s = c->data; |
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150 |
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151 ngx_imap_proxy_close_session(s); |
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152 } |
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153 } |
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154 |
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155 |
521 | 156 static void |
527 | 157 ngx_imap_proxy_imap_handler(ngx_event_t *rev) |
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158 { |
539 | 159 u_char *p; |
160 ngx_int_t rc; | |
161 ngx_str_t line; | |
162 ngx_connection_t *c; | |
163 ngx_imap_session_t *s; | |
164 ngx_imap_proxy_conf_t *pcf; | |
419
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165 |
527 | 166 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, |
167 "imap proxy imap auth handler"); | |
419
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168 |
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169 c = rev->data; |
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170 s = c->data; |
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171 |
423
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172 if (rev->timedout) { |
527 | 173 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, |
174 "upstream timed out"); | |
175 ngx_imap_proxy_internal_server_error(s); | |
423
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176 return; |
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177 } |
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178 |
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179 if (s->proxy->buffer == NULL) { |
539 | 180 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
527 | 181 |
539 | 182 s->proxy->buffer = ngx_create_temp_buf(c->pool, pcf->buffer_size); |
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183 if (s->proxy->buffer == NULL) { |
527 | 184 ngx_imap_proxy_internal_server_error(s); |
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185 return; |
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186 } |
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187 } |
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188 |
527 | 189 rc = ngx_imap_proxy_read_response(s, s->imap_state == ngx_imap_start ? |
190 NGX_IMAP_WAIT_OK : NGX_IMAP_WAIT_NEXT); | |
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191 |
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192 if (rc == NGX_AGAIN) { |
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193 return; |
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194 } |
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diff
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|
195 |
529 | 196 if (rc == NGX_ERROR || rc == NGX_IMAP_PROXY_INVALID) { |
527 | 197 ngx_imap_proxy_internal_server_error(s); |
422
edaefb2a20fc
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parents:
419
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|
198 return; |
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parents:
419
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|
199 } |
419
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parents:
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diff
changeset
|
200 |
529 | 201 if (rc == NGX_IMAP_PROXY_ERROR) { |
202 s->connection->read->handler = ngx_imap_proxy_handler; | |
203 s->connection->write->handler = ngx_imap_proxy_handler; | |
204 rev->handler = ngx_imap_proxy_handler; | |
205 c->write->handler = ngx_imap_proxy_handler; | |
206 | |
207 ngx_imap_proxy_handler(c->read); | |
208 return; | |
209 } | |
210 | |
527 | 211 switch (s->imap_state) { |
212 | |
213 case ngx_imap_start: | |
214 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
215 "imap proxy send login"); | |
419
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parents:
418
diff
changeset
|
216 |
527 | 217 line.len = s->tag.len + sizeof("LOGIN ") - 1 |
218 + 1 + NGX_SIZE_T_LEN + 1 + 2; | |
219 line.data = ngx_palloc(c->pool, line.len); | |
220 if (line.data == NULL) { | |
221 ngx_imap_proxy_internal_server_error(s); | |
222 return; | |
223 } | |
224 | |
225 line.len = ngx_sprintf(line.data, "%VLOGIN {%uz}" CRLF, | |
226 &s->tag, s->login.len) | |
227 - line.data; | |
228 | |
229 s->imap_state = ngx_imap_login; | |
230 break; | |
231 | |
232 case ngx_imap_login: | |
422
edaefb2a20fc
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419
diff
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|
233 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy send user"); |
edaefb2a20fc
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Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
234 |
529 | 235 line.len = s->login.len + 1 + 1 + NGX_SIZE_T_LEN + 1 + 2; |
527 | 236 line.data = ngx_palloc(c->pool, line.len); |
237 if (line.data == NULL) { | |
238 ngx_imap_proxy_internal_server_error(s); | |
239 return; | |
240 } | |
241 | |
529 | 242 line.len = ngx_sprintf(line.data, "%V {%uz}" CRLF, |
527 | 243 &s->login, s->passwd.len) |
244 - line.data; | |
245 | |
246 s->imap_state = ngx_imap_user; | |
247 break; | |
248 | |
249 case ngx_imap_user: | |
250 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
251 "imap proxy send passwd"); | |
252 | |
253 line.len = s->passwd.len + 2; | |
501 | 254 line.data = ngx_palloc(c->pool, line.len); |
255 if (line.data == NULL) { | |
527 | 256 ngx_imap_proxy_internal_server_error(s); |
257 return; | |
258 } | |
259 | |
260 p = ngx_cpymem(line.data, s->passwd.data, s->passwd.len); | |
261 *p++ = CR; *p = LF; | |
262 | |
263 s->imap_state = ngx_imap_passwd; | |
264 break; | |
265 | |
266 default: | |
267 #if (NGX_SUPPRESS_WARN) | |
268 line.len = 0; | |
269 line.data = NULL; | |
270 #endif | |
271 break; | |
272 } | |
273 | |
539 | 274 if (c->send(c, line.data, line.len) < (ssize_t) line.len) { |
527 | 275 /* |
276 * we treat the incomplete sending as NGX_ERROR | |
277 * because it is very strange here | |
278 */ | |
279 ngx_imap_proxy_internal_server_error(s); | |
280 return; | |
281 } | |
282 | |
283 s->proxy->buffer->pos = s->proxy->buffer->start; | |
284 s->proxy->buffer->last = s->proxy->buffer->start; | |
285 | |
286 if (s->imap_state == ngx_imap_passwd) { | |
287 s->connection->read->handler = ngx_imap_proxy_handler; | |
288 s->connection->write->handler = ngx_imap_proxy_handler; | |
289 rev->handler = ngx_imap_proxy_handler; | |
290 c->write->handler = ngx_imap_proxy_handler; | |
531 | 291 |
539 | 292 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
293 ngx_add_timer(s->connection->read, pcf->timeout); | |
531 | 294 ngx_del_timer(c->read); |
541 | 295 |
296 c->log->action = "proxying"; | |
527 | 297 } |
298 } | |
299 | |
300 | |
301 static void | |
302 ngx_imap_proxy_pop3_handler(ngx_event_t *rev) | |
303 { | |
539 | 304 u_char *p; |
305 ngx_int_t rc; | |
306 ngx_str_t line; | |
307 ngx_connection_t *c; | |
308 ngx_imap_session_t *s; | |
309 ngx_imap_proxy_conf_t *pcf; | |
527 | 310 |
311 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
312 "imap proxy pop3 auth handler"); | |
313 | |
314 c = rev->data; | |
315 s = c->data; | |
316 | |
317 if (rev->timedout) { | |
318 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, | |
319 "upstream timed out"); | |
320 ngx_imap_proxy_internal_server_error(s); | |
321 return; | |
322 } | |
323 | |
324 if (s->proxy->buffer == NULL) { | |
539 | 325 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
527 | 326 |
539 | 327 s->proxy->buffer = ngx_create_temp_buf(c->pool, pcf->buffer_size); |
527 | 328 if (s->proxy->buffer == NULL) { |
329 ngx_imap_proxy_internal_server_error(s); | |
330 return; | |
331 } | |
332 } | |
333 | |
334 rc = ngx_imap_proxy_read_response(s, NGX_IMAP_WAIT_OK); | |
335 | |
336 if (rc == NGX_AGAIN) { | |
337 return; | |
338 } | |
339 | |
529 | 340 if (rc == NGX_ERROR || rc == NGX_IMAP_PROXY_INVALID) { |
527 | 341 ngx_imap_proxy_internal_server_error(s); |
342 return; | |
343 } | |
344 | |
529 | 345 if (rc == NGX_IMAP_PROXY_ERROR) { |
346 s->connection->read->handler = ngx_imap_proxy_handler; | |
347 s->connection->write->handler = ngx_imap_proxy_handler; | |
348 rev->handler = ngx_imap_proxy_handler; | |
349 c->write->handler = ngx_imap_proxy_handler; | |
350 | |
351 ngx_imap_proxy_handler(c->read); | |
352 return; | |
353 } | |
354 | |
527 | 355 switch (s->imap_state) { |
356 | |
357 case ngx_pop3_start: | |
358 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy send user"); | |
359 | |
360 line.len = sizeof("USER ") - 1 + s->login.len + 2; | |
361 line.data = ngx_palloc(c->pool, line.len); | |
362 if (line.data == NULL) { | |
363 ngx_imap_proxy_internal_server_error(s); | |
419
47709bff4468
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diff
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364 return; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
365 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
366 |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
367 p = ngx_cpymem(line.data, "USER ", sizeof("USER ") - 1); |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
368 p = ngx_cpymem(p, s->login.data, s->login.len); |
501 | 369 *p++ = CR; *p = LF; |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
370 |
527 | 371 s->imap_state = ngx_pop3_user; |
372 break; | |
373 | |
374 case ngx_pop3_user: | |
375 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy send pass"); | |
376 | |
377 line.len = sizeof("PASS ") - 1 + s->passwd.len + 2; | |
378 line.data = ngx_palloc(c->pool, line.len); | |
379 if (line.data == NULL) { | |
380 ngx_imap_proxy_internal_server_error(s); | |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
381 return; |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
382 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
383 |
527 | 384 p = ngx_cpymem(line.data, "PASS ", sizeof("PASS ") - 1); |
385 p = ngx_cpymem(p, s->passwd.data, s->passwd.len); | |
386 *p++ = CR; *p = LF; | |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
387 |
527 | 388 s->imap_state = ngx_pop3_passwd; |
389 break; | |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
390 |
527 | 391 default: |
392 #if (NGX_SUPPRESS_WARN) | |
393 line.len = 0; | |
394 line.data = NULL; | |
395 #endif | |
396 break; | |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
397 } |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
398 |
539 | 399 if (c->send(c, line.data, line.len) < (ssize_t) line.len) { |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
400 /* |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
401 * we treat the incomplete sending as NGX_ERROR |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
402 * because it is very strange here |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
403 */ |
527 | 404 ngx_imap_proxy_internal_server_error(s); |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
405 return; |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
406 } |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
407 |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
408 s->proxy->buffer->pos = s->proxy->buffer->start; |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
409 s->proxy->buffer->last = s->proxy->buffer->start; |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
410 |
527 | 411 if (s->imap_state == ngx_pop3_passwd) { |
412 s->connection->read->handler = ngx_imap_proxy_handler; | |
413 s->connection->write->handler = ngx_imap_proxy_handler; | |
414 rev->handler = ngx_imap_proxy_handler; | |
415 c->write->handler = ngx_imap_proxy_handler; | |
531 | 416 |
539 | 417 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
418 ngx_add_timer(s->connection->read, pcf->timeout); | |
531 | 419 ngx_del_timer(c->read); |
541 | 420 |
421 c->log->action = "proxying"; | |
527 | 422 } |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
423 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
424 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
425 |
521 | 426 static void |
427 ngx_imap_proxy_dummy_handler(ngx_event_t *ev) | |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
428 { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
429 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, ev->log, 0, "imap proxy dummy handler"); |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
430 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
431 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
432 |
521 | 433 static ngx_int_t |
527 | 434 ngx_imap_proxy_read_response(ngx_imap_session_t *s, ngx_uint_t what) |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
435 { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
436 u_char *p; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
437 ssize_t n; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
438 ngx_buf_t *b; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
439 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
440 b = s->proxy->buffer; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
441 |
539 | 442 n = s->proxy->upstream.connection->recv(s->proxy->upstream.connection, |
443 b->last, b->end - b->last); | |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
444 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
445 if (n == NGX_ERROR || n == 0) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
446 return NGX_ERROR; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
447 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
448 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
449 if (n == NGX_AGAIN) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
450 return NGX_AGAIN; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
451 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
452 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
453 b->last += n; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
454 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
455 if (b->last - b->pos < 5) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
456 return NGX_AGAIN; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
457 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
458 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
459 if (*(b->last - 2) != CR || *(b->last - 1) != LF) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
460 if (b->last == b->end) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
461 *(b->last - 1) = '\0'; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
462 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
463 "upstream sent too long response line: \"%s\"", |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
464 b->pos); |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
465 return NGX_IMAP_PROXY_INVALID; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
466 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
467 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
468 return NGX_AGAIN; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
469 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
470 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
471 p = b->pos; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
472 |
527 | 473 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { |
474 if (p[0] == '+' && p[1] == 'O' && p[2] == 'K') { | |
475 return NGX_OK; | |
476 } | |
477 | |
478 if (p[0] == '-' && p[1] == 'E' && p[2] == 'R' && p[3] == 'R') { | |
479 return NGX_IMAP_PROXY_ERROR; | |
480 } | |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
481 |
527 | 482 } else { |
529 | 483 if (p[0] == 'N' && p[1] == 'O') { |
484 return NGX_IMAP_PROXY_ERROR; | |
485 } | |
486 | |
527 | 487 if (what == NGX_IMAP_WAIT_OK) { |
488 if (p[0] == '*' && p[1] == ' ' && p[2] == 'O' && p[3] == 'K') { | |
489 return NGX_OK; | |
490 } | |
491 | |
492 } else { | |
529 | 493 if (p[0] == '+') { |
527 | 494 return NGX_OK; |
495 } | |
496 } | |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
497 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
498 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
499 *(b->last - 2) = '\0'; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
500 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, |
527 | 501 "upstream sent invalid response: \"%s\"", p); |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
502 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
503 return NGX_IMAP_PROXY_INVALID; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
504 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
505 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
506 |
521 | 507 static void |
508 ngx_imap_proxy_handler(ngx_event_t *ev) | |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
509 { |
539 | 510 size_t size; |
511 ssize_t n; | |
512 ngx_buf_t *b; | |
513 ngx_uint_t again, do_write; | |
514 ngx_connection_t *c, *src, *dst; | |
515 ngx_imap_session_t *s; | |
516 ngx_imap_proxy_conf_t *pcf; | |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
517 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
518 c = ev->data; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
519 s = c->data; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
520 |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
521 if (ev->timedout) { |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
522 if (c == s->connection) { |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
523 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
524 "client timed out"); |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
525 } else { |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
526 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
527 "upstream timed out"); |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
528 } |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
529 |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
530 ngx_imap_proxy_close_session(s); |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
531 return; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
532 } |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
533 |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
534 if (c == s->connection) { |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
535 if (ev->write) { |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
536 src = s->proxy->upstream.connection; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
537 dst = c; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
538 b = s->proxy->buffer; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
539 |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
540 } else { |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
541 src = c; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
542 dst = s->proxy->upstream.connection; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
543 b = s->buffer; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
544 } |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
545 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
546 } else { |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
547 if (ev->write) { |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
548 src = s->connection; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
549 dst = c; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
550 b = s->buffer; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
551 |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
552 } else { |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
553 src = c; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
554 dst = s->connection; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
555 b = s->proxy->buffer; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
556 } |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
557 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
558 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
559 do_write = ev->write ? 1 : 0; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
560 |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
561 ngx_log_debug3(NGX_LOG_DEBUG_IMAP, ev->log, 0, |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
562 "imap proxy handler: %d, #%d > #%d", |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
563 do_write, src->fd, dst->fd); |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
564 |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
565 do { |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
566 again = 0; |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
567 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
568 if (do_write == 1) { |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
569 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
570 size = b->last - b->pos; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
571 |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
572 if (size && dst->write->ready) { |
539 | 573 n = dst->send(dst, b->pos, size); |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
574 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
575 if (n == NGX_ERROR) { |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
576 ngx_imap_proxy_close_session(s); |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
577 return; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
578 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
579 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
580 if (n > 0) { |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
581 again = 1; |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
582 b->pos += n; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
583 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
584 if (b->pos == b->last) { |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
585 b->pos = b->start; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
586 b->last = b->start; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
587 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
588 } |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
589 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
590 if (n == NGX_AGAIN || n < (ssize_t) size) { |
452 | 591 if (ngx_handle_write_event(dst->write, /* TODO: LOWAT */ 0) |
529 | 592 == NGX_ERROR) |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
593 { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
594 ngx_imap_proxy_close_session(s); |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
595 return; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
596 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
597 } |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
598 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
599 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
600 |
419
47709bff4468
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601 size = b->end - b->last; |
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602 |
423
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603 if (size && src->read->ready) { |
539 | 604 n = src->recv(src, b->last, size); |
418
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605 |
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606 if (n == NGX_ERROR || n == 0) { |
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607 ngx_imap_proxy_close_session(s); |
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608 return; |
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609 } |
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610 |
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611 if (n > 0) { |
423
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612 again = 1; |
418
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613 do_write = 1; |
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614 b->last += n; |
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615 } |
419
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616 |
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617 if (n == NGX_AGAIN || n < (ssize_t) size) { |
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618 if (ngx_handle_read_event(src->read, 0) == NGX_ERROR) { |
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619 ngx_imap_proxy_close_session(s); |
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620 return; |
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621 } |
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622 } |
539 | 623 |
624 if (c == s->connection) { | |
625 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); | |
626 ngx_add_timer(c->read, pcf->timeout); | |
627 } | |
418
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628 } |
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629 |
423
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630 } while (again); |
418
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631 } |
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632 |
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633 |
521 | 634 static void |
527 | 635 ngx_imap_proxy_internal_server_error(ngx_imap_session_t *s) |
636 { | |
637 if (s->proxy->upstream.connection) { | |
638 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
639 "close imap proxy connection: %d", | |
640 s->proxy->upstream.connection->fd); | |
641 | |
642 ngx_close_connection(s->proxy->upstream.connection); | |
643 } | |
644 | |
645 ngx_imap_session_internal_server_error(s); | |
646 } | |
647 | |
648 | |
649 static void | |
521 | 650 ngx_imap_proxy_close_session(ngx_imap_session_t *s) |
418
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651 { |
521 | 652 if (s->proxy->upstream.connection) { |
653 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
654 "close imap proxy connection: %d", | |
655 s->proxy->upstream.connection->fd); | |
656 | |
657 ngx_close_connection(s->proxy->upstream.connection); | |
419
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658 } |
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659 |
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660 ngx_imap_close_connection(s->connection); |
418
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661 } |
521 | 662 |
663 | |
664 static void * | |
665 ngx_imap_proxy_create_conf(ngx_conf_t *cf) | |
666 { | |
667 ngx_imap_proxy_conf_t *pcf; | |
668 | |
669 pcf = ngx_pcalloc(cf->pool, sizeof(ngx_imap_proxy_conf_t)); | |
670 if (pcf == NULL) { | |
671 return NGX_CONF_ERROR; | |
672 } | |
673 | |
674 pcf->enable = NGX_CONF_UNSET; | |
539 | 675 pcf->buffer_size = NGX_CONF_UNSET_SIZE; |
676 pcf->timeout = NGX_CONF_UNSET_MSEC; | |
521 | 677 |
678 return pcf; | |
679 } | |
680 | |
681 | |
682 static char * | |
683 ngx_imap_proxy_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
684 { | |
685 ngx_imap_proxy_conf_t *prev = parent; | |
686 ngx_imap_proxy_conf_t *conf = child; | |
687 | |
539 | 688 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
689 ngx_conf_merge_size_value(conf->buffer_size, prev->buffer_size, | |
690 (size_t) ngx_pagesize); | |
691 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 24 * 60 * 60000); | |
521 | 692 |
693 return NGX_CONF_OK; | |
694 } |