Mercurial > hg > nginx
annotate src/imap/ngx_imap_proxy_module.c @ 663:6d5c1535bb9d release-0.3.53
nginx-0.3.53-RELEASE import
*) Change: the "add_header" directive adds the string to 204, 301, and
302 responses.
*) Feature: the "server" directive in the "upstream" context supports
the "weight" parameter.
*) Feature: the "server_name" directive supports the "*" wildcard.
*) Feature: nginx supports the request body size more than 2G.
*) Bugfix: if a client was successfully authorized using "satisfy_any
on", then anyway the message "access forbidden by rule" was written
in the log.
*) Bugfix: the "PUT" method may erroneously not create a file and
return the 409 code.
*) Bugfix: if the IMAP/POP3 backend returned an error, then nginx
continued proxying anyway.
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Fri, 07 Jul 2006 16:33:19 +0000 |
| parents | d4e858a5751a |
| children | 739b997da512 |
| rev | line source |
|---|---|
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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6 |
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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, |
| 663 | 26 ngx_uint_t state); |
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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 | |
| 35 static ngx_command_t ngx_imap_proxy_commands[] = { | |
| 539 | 36 |
| 521 | 37 { ngx_string("proxy"), |
| 38 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_FLAG, | |
| 39 ngx_conf_set_flag_slot, | |
| 40 NGX_IMAP_SRV_CONF_OFFSET, | |
| 41 offsetof(ngx_imap_proxy_conf_t, enable), | |
| 42 NULL }, | |
| 43 | |
| 539 | 44 { ngx_string("proxy_buffer"), |
| 45 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, | |
| 46 ngx_conf_set_size_slot, | |
| 47 NGX_IMAP_SRV_CONF_OFFSET, | |
| 48 offsetof(ngx_imap_proxy_conf_t, buffer_size), | |
| 49 NULL }, | |
| 50 | |
| 51 { ngx_string("proxy_timeout"), | |
| 52 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, | |
| 53 ngx_conf_set_msec_slot, | |
| 54 NGX_IMAP_SRV_CONF_OFFSET, | |
| 55 offsetof(ngx_imap_proxy_conf_t, timeout), | |
| 56 NULL }, | |
| 57 | |
| 521 | 58 ngx_null_command |
| 59 }; | |
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60 |
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61 |
| 521 | 62 static ngx_imap_module_t ngx_imap_proxy_module_ctx = { |
| 63 NULL, /* create main configuration */ | |
| 64 NULL, /* init main configuration */ | |
| 65 | |
| 66 ngx_imap_proxy_create_conf, /* create server configuration */ | |
| 67 ngx_imap_proxy_merge_conf /* merge server configuration */ | |
| 68 }; | |
| 69 | |
| 70 | |
| 71 ngx_module_t ngx_imap_proxy_module = { | |
| 72 NGX_MODULE_V1, | |
| 73 &ngx_imap_proxy_module_ctx, /* module context */ | |
| 74 ngx_imap_proxy_commands, /* module directives */ | |
| 75 NGX_IMAP_MODULE, /* module type */ | |
| 541 | 76 NULL, /* init master */ |
| 521 | 77 NULL, /* init module */ |
| 541 | 78 NULL, /* init process */ |
| 79 NULL, /* init thread */ | |
| 80 NULL, /* exit thread */ | |
| 81 NULL, /* exit process */ | |
| 82 NULL, /* exit master */ | |
| 83 NGX_MODULE_V1_PADDING | |
| 521 | 84 }; |
| 85 | |
| 86 | |
| 87 void | |
| 88 ngx_imap_proxy_init(ngx_imap_session_t *s, ngx_peers_t *peers) | |
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89 { |
| 587 | 90 int keepalive; |
| 527 | 91 ngx_int_t rc; |
| 92 ngx_imap_proxy_ctx_t *p; | |
| 93 ngx_imap_core_srv_conf_t *cscf; | |
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94 |
| 587 | 95 s->connection->log->action = "connecting to upstream"; |
| 96 | |
| 97 cscf = ngx_imap_get_module_srv_conf(s, ngx_imap_core_module); | |
| 98 | |
| 99 if (cscf->so_keepalive) { | |
| 100 keepalive = 1; | |
| 101 | |
| 102 if (setsockopt(s->connection->fd, SOL_SOCKET, SO_KEEPALIVE, | |
| 103 (const void *) &keepalive, sizeof(int)) | |
| 104 == -1) | |
| 105 { | |
| 106 ngx_log_error(NGX_LOG_ALERT, s->connection->log, ngx_socket_errno, | |
| 107 "setsockopt(SO_KEEPALIVE) failed"); | |
| 108 } | |
| 109 } | |
| 110 | |
| 501 | 111 p = ngx_pcalloc(s->connection->pool, sizeof(ngx_imap_proxy_ctx_t)); |
| 112 if (p == NULL) { | |
| 527 | 113 ngx_imap_session_internal_server_error(s); |
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114 return; |
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115 } |
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116 |
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117 s->proxy = p; |
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118 |
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119 p->upstream.peers = peers; |
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120 p->upstream.log = s->connection->log; |
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121 p->upstream.log_error = NGX_ERROR_ERR; |
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122 |
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123 rc = ngx_event_connect_peer(&p->upstream); |
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124 |
| 543 | 125 if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) { |
| 126 ngx_imap_proxy_internal_server_error(s); | |
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127 return; |
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128 } |
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129 |
| 527 | 130 ngx_add_timer(p->upstream.connection->read, cscf->timeout); |
| 131 | |
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132 p->upstream.connection->data = s; |
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133 p->upstream.connection->pool = s->connection->pool; |
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134 |
| 509 | 135 s->connection->read->handler = ngx_imap_proxy_block_read; |
| 136 p->upstream.connection->write->handler = ngx_imap_proxy_dummy_handler; | |
| 527 | 137 |
| 138 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { | |
| 139 p->upstream.connection->read->handler = ngx_imap_proxy_pop3_handler; | |
| 140 s->imap_state = ngx_pop3_start; | |
| 141 | |
| 142 } else { | |
| 143 p->upstream.connection->read->handler = ngx_imap_proxy_imap_handler; | |
| 144 s->imap_state = ngx_imap_start; | |
| 145 } | |
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146 } |
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147 |
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148 |
| 521 | 149 static void |
| 150 ngx_imap_proxy_block_read(ngx_event_t *rev) | |
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151 { |
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152 ngx_connection_t *c; |
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153 ngx_imap_session_t *s; |
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154 |
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155 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy block read"); |
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156 |
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157 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { |
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158 c = rev->data; |
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159 s = c->data; |
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160 |
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161 ngx_imap_proxy_close_session(s); |
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162 } |
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163 } |
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164 |
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165 |
| 521 | 166 static void |
| 527 | 167 ngx_imap_proxy_imap_handler(ngx_event_t *rev) |
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168 { |
| 539 | 169 u_char *p; |
| 170 ngx_int_t rc; | |
| 171 ngx_str_t line; | |
| 172 ngx_connection_t *c; | |
| 173 ngx_imap_session_t *s; | |
| 174 ngx_imap_proxy_conf_t *pcf; | |
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175 |
| 527 | 176 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, |
| 177 "imap proxy imap auth handler"); | |
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178 |
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179 c = rev->data; |
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180 s = c->data; |
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181 |
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182 if (rev->timedout) { |
| 527 | 183 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, |
| 184 "upstream timed out"); | |
| 577 | 185 c->timedout = 1; |
| 527 | 186 ngx_imap_proxy_internal_server_error(s); |
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187 return; |
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188 } |
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189 |
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190 if (s->proxy->buffer == NULL) { |
| 539 | 191 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
| 527 | 192 |
| 539 | 193 s->proxy->buffer = ngx_create_temp_buf(c->pool, pcf->buffer_size); |
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194 if (s->proxy->buffer == NULL) { |
| 527 | 195 ngx_imap_proxy_internal_server_error(s); |
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196 return; |
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197 } |
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|
198 } |
|
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Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
199 |
| 663 | 200 rc = ngx_imap_proxy_read_response(s, s->imap_state); |
|
419
47709bff4468
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Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
201 |
|
47709bff4468
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Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
202 if (rc == NGX_AGAIN) { |
|
47709bff4468
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Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
203 return; |
|
47709bff4468
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Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
204 } |
|
47709bff4468
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Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
205 |
| 571 | 206 if (rc == NGX_ERROR) { |
| 527 | 207 ngx_imap_proxy_internal_server_error(s); |
|
422
edaefb2a20fc
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Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
208 return; |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
209 } |
|
419
47709bff4468
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Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
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
47709bff4468
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Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
216 |
| 587 | 217 s->connection->log->action = "sending LOGIN command to upstream"; |
| 218 | |
| 527 | 219 line.len = s->tag.len + sizeof("LOGIN ") - 1 |
| 220 + 1 + NGX_SIZE_T_LEN + 1 + 2; | |
| 221 line.data = ngx_palloc(c->pool, line.len); | |
| 222 if (line.data == NULL) { | |
| 223 ngx_imap_proxy_internal_server_error(s); | |
| 224 return; | |
| 225 } | |
| 226 | |
| 227 line.len = ngx_sprintf(line.data, "%VLOGIN {%uz}" CRLF, | |
| 228 &s->tag, s->login.len) | |
| 229 - line.data; | |
| 230 | |
| 231 s->imap_state = ngx_imap_login; | |
| 232 break; | |
| 233 | |
| 234 case ngx_imap_login: | |
|
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
235 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy send user"); |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
236 |
| 587 | 237 s->connection->log->action = "sending user name to upstream"; |
| 238 | |
| 529 | 239 line.len = s->login.len + 1 + 1 + NGX_SIZE_T_LEN + 1 + 2; |
| 527 | 240 line.data = ngx_palloc(c->pool, line.len); |
| 241 if (line.data == NULL) { | |
| 242 ngx_imap_proxy_internal_server_error(s); | |
| 243 return; | |
| 244 } | |
| 245 | |
| 529 | 246 line.len = ngx_sprintf(line.data, "%V {%uz}" CRLF, |
| 527 | 247 &s->login, s->passwd.len) |
| 248 - line.data; | |
| 249 | |
| 250 s->imap_state = ngx_imap_user; | |
| 251 break; | |
| 252 | |
| 253 case ngx_imap_user: | |
| 254 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
| 255 "imap proxy send passwd"); | |
| 256 | |
| 587 | 257 s->connection->log->action = "sending password to upstream"; |
| 258 | |
| 527 | 259 line.len = s->passwd.len + 2; |
| 501 | 260 line.data = ngx_palloc(c->pool, line.len); |
| 261 if (line.data == NULL) { | |
| 527 | 262 ngx_imap_proxy_internal_server_error(s); |
| 263 return; | |
| 264 } | |
| 265 | |
| 266 p = ngx_cpymem(line.data, s->passwd.data, s->passwd.len); | |
| 267 *p++ = CR; *p = LF; | |
| 268 | |
| 269 s->imap_state = ngx_imap_passwd; | |
| 270 break; | |
| 271 | |
| 663 | 272 case ngx_imap_passwd: |
| 273 s->connection->read->handler = ngx_imap_proxy_handler; | |
| 274 s->connection->write->handler = ngx_imap_proxy_handler; | |
| 275 rev->handler = ngx_imap_proxy_handler; | |
| 276 c->write->handler = ngx_imap_proxy_handler; | |
| 277 | |
| 278 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); | |
| 279 ngx_add_timer(s->connection->read, pcf->timeout); | |
| 280 ngx_del_timer(c->read); | |
| 281 | |
| 282 c->log->action = NULL; | |
| 283 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
| 284 | |
| 285 ngx_imap_proxy_handler(s->connection->write); | |
| 286 | |
| 287 return; | |
| 288 | |
| 527 | 289 default: |
| 290 #if (NGX_SUPPRESS_WARN) | |
| 291 line.len = 0; | |
| 292 line.data = NULL; | |
| 293 #endif | |
| 294 break; | |
| 295 } | |
| 296 | |
| 539 | 297 if (c->send(c, line.data, line.len) < (ssize_t) line.len) { |
| 527 | 298 /* |
| 299 * we treat the incomplete sending as NGX_ERROR | |
| 300 * because it is very strange here | |
| 301 */ | |
| 302 ngx_imap_proxy_internal_server_error(s); | |
| 303 return; | |
| 304 } | |
| 305 | |
| 306 s->proxy->buffer->pos = s->proxy->buffer->start; | |
| 307 s->proxy->buffer->last = s->proxy->buffer->start; | |
| 308 } | |
| 309 | |
| 310 | |
| 311 static void | |
| 312 ngx_imap_proxy_pop3_handler(ngx_event_t *rev) | |
| 313 { | |
| 539 | 314 u_char *p; |
| 315 ngx_int_t rc; | |
| 316 ngx_str_t line; | |
| 317 ngx_connection_t *c; | |
| 318 ngx_imap_session_t *s; | |
| 319 ngx_imap_proxy_conf_t *pcf; | |
| 527 | 320 |
| 321 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
| 322 "imap proxy pop3 auth handler"); | |
| 323 | |
| 324 c = rev->data; | |
| 325 s = c->data; | |
| 326 | |
| 327 if (rev->timedout) { | |
| 328 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, | |
| 329 "upstream timed out"); | |
| 577 | 330 c->timedout = 1; |
| 527 | 331 ngx_imap_proxy_internal_server_error(s); |
| 332 return; | |
| 333 } | |
| 334 | |
| 335 if (s->proxy->buffer == NULL) { | |
| 539 | 336 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
| 527 | 337 |
| 539 | 338 s->proxy->buffer = ngx_create_temp_buf(c->pool, pcf->buffer_size); |
| 527 | 339 if (s->proxy->buffer == NULL) { |
| 340 ngx_imap_proxy_internal_server_error(s); | |
| 341 return; | |
| 342 } | |
| 343 } | |
| 344 | |
| 663 | 345 rc = ngx_imap_proxy_read_response(s, 0); |
| 527 | 346 |
| 347 if (rc == NGX_AGAIN) { | |
| 348 return; | |
| 349 } | |
| 350 | |
| 571 | 351 if (rc == NGX_ERROR) { |
| 527 | 352 ngx_imap_proxy_internal_server_error(s); |
| 353 return; | |
| 354 } | |
| 355 | |
| 356 switch (s->imap_state) { | |
| 357 | |
| 358 case ngx_pop3_start: | |
| 359 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy send user"); | |
| 360 | |
| 587 | 361 s->connection->log->action = "sending user name to upstream"; |
| 362 | |
| 527 | 363 line.len = sizeof("USER ") - 1 + s->login.len + 2; |
| 364 line.data = ngx_palloc(c->pool, line.len); | |
| 365 if (line.data == NULL) { | |
| 366 ngx_imap_proxy_internal_server_error(s); | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
367 return; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
368 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
369 |
|
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
370 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
|
371 p = ngx_cpymem(p, s->login.data, s->login.len); |
| 501 | 372 *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
|
373 |
| 527 | 374 s->imap_state = ngx_pop3_user; |
| 375 break; | |
| 376 | |
| 377 case ngx_pop3_user: | |
| 378 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy send pass"); | |
| 379 | |
| 587 | 380 s->connection->log->action = "sending password to upstream"; |
| 381 | |
| 527 | 382 line.len = sizeof("PASS ") - 1 + s->passwd.len + 2; |
| 383 line.data = ngx_palloc(c->pool, line.len); | |
| 384 if (line.data == NULL) { | |
| 385 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
|
386 return; |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
387 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
388 |
| 527 | 389 p = ngx_cpymem(line.data, "PASS ", sizeof("PASS ") - 1); |
| 390 p = ngx_cpymem(p, s->passwd.data, s->passwd.len); | |
| 391 *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
|
392 |
| 527 | 393 s->imap_state = ngx_pop3_passwd; |
| 394 break; | |
|
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
395 |
| 663 | 396 case ngx_pop3_passwd: |
| 397 s->connection->read->handler = ngx_imap_proxy_handler; | |
| 398 s->connection->write->handler = ngx_imap_proxy_handler; | |
| 399 rev->handler = ngx_imap_proxy_handler; | |
| 400 c->write->handler = ngx_imap_proxy_handler; | |
| 401 | |
| 402 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); | |
| 403 ngx_add_timer(s->connection->read, pcf->timeout); | |
| 404 ngx_del_timer(c->read); | |
| 405 | |
| 406 c->log->action = NULL; | |
| 407 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
| 408 | |
| 409 ngx_imap_proxy_handler(s->connection->write); | |
| 410 | |
| 411 return; | |
| 412 | |
| 527 | 413 default: |
| 414 #if (NGX_SUPPRESS_WARN) | |
| 415 line.len = 0; | |
| 416 line.data = NULL; | |
| 417 #endif | |
| 418 break; | |
|
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
419 } |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
420 |
| 539 | 421 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
|
422 /* |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
423 * 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
|
424 * 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
|
425 */ |
| 527 | 426 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
|
427 return; |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
428 } |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
429 |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
430 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
|
431 s->proxy->buffer->last = s->proxy->buffer->start; |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
432 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
433 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
434 |
| 521 | 435 static void |
| 583 | 436 ngx_imap_proxy_dummy_handler(ngx_event_t *wev) |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
437 { |
| 583 | 438 ngx_connection_t *c; |
| 439 ngx_imap_session_t *s; | |
| 440 | |
| 441 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, wev->log, 0, "imap proxy dummy handler"); | |
| 442 | |
| 443 if (ngx_handle_write_event(wev, 0) == NGX_ERROR) { | |
| 444 c = wev->data; | |
| 445 s = c->data; | |
| 446 | |
| 447 ngx_imap_proxy_close_session(s); | |
| 448 } | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
449 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
450 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
451 |
| 521 | 452 static ngx_int_t |
| 663 | 453 ngx_imap_proxy_read_response(ngx_imap_session_t *s, ngx_uint_t state) |
|
419
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 u_char *p; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
456 ssize_t n; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
457 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
|
458 |
| 587 | 459 s->connection->log->action = "reading response from upstream"; |
| 460 | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
461 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
|
462 |
| 539 | 463 n = s->proxy->upstream.connection->recv(s->proxy->upstream.connection, |
| 464 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
|
465 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
466 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
|
467 return NGX_ERROR; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
468 } |
|
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 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
|
471 return NGX_AGAIN; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
472 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
473 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
474 b->last += n; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
475 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
476 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
|
477 return NGX_AGAIN; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
478 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
479 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
480 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
|
481 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
|
482 *(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
|
483 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
|
484 "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
|
485 b->pos); |
| 571 | 486 return NGX_ERROR; |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
487 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
488 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
489 return NGX_AGAIN; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
490 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
491 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
492 p = b->pos; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
493 |
| 527 | 494 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { |
| 495 if (p[0] == '+' && p[1] == 'O' && p[2] == 'K') { | |
| 496 return NGX_OK; | |
| 497 } | |
| 498 | |
| 499 } else { | |
| 663 | 500 switch (state) { |
| 501 | |
| 502 case ngx_imap_start: | |
| 527 | 503 if (p[0] == '*' && p[1] == ' ' && p[2] == 'O' && p[3] == 'K') { |
| 504 return NGX_OK; | |
| 505 } | |
| 663 | 506 break; |
| 527 | 507 |
| 663 | 508 case ngx_imap_login: |
| 509 case ngx_imap_user: | |
| 529 | 510 if (p[0] == '+') { |
| 527 | 511 return NGX_OK; |
| 512 } | |
| 663 | 513 break; |
| 514 | |
| 515 case ngx_imap_passwd: | |
| 516 if (ngx_strncmp(p, s->tag.data, s->tag.len) == 0) { | |
| 517 p += s->tag.len; | |
| 518 if (p[0] == 'O' && p[1] == 'K') { | |
| 519 return NGX_OK; | |
| 520 } | |
| 521 } | |
| 522 break; | |
| 527 | 523 } |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
524 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
525 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
526 *(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
|
527 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, |
| 527 | 528 "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
|
529 |
| 571 | 530 return NGX_ERROR; |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
531 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
532 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
533 |
| 521 | 534 static void |
| 535 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
|
536 { |
| 583 | 537 char *action, *recv_action, *send_action; |
| 539 | 538 size_t size; |
| 539 ssize_t n; | |
| 540 ngx_buf_t *b; | |
| 583 | 541 ngx_uint_t do_write; |
| 539 | 542 ngx_connection_t *c, *src, *dst; |
| 543 ngx_imap_session_t *s; | |
| 544 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
|
545 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
546 c = ev->data; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
547 s = c->data; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
548 |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
549 if (ev->timedout) { |
| 583 | 550 c->log->action = "proxying"; |
| 551 | |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
552 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
|
553 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
|
554 "client timed out"); |
| 577 | 555 c->timedout = 1; |
| 556 | |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
557 } else { |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
558 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
|
559 "upstream timed out"); |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
560 } |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
561 |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
562 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
|
563 return; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
564 } |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
565 |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
566 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
|
567 if (ev->write) { |
| 583 | 568 recv_action = "proxying and reading from upstream"; |
| 569 send_action = "proxying and sending to client"; | |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
570 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
|
571 dst = c; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
572 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
|
573 |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
574 } else { |
| 583 | 575 recv_action = "proxying and reading from client"; |
| 576 send_action = "proxying and sending to upstream"; | |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
577 src = c; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
578 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
|
579 b = s->buffer; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
580 } |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
581 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
582 } else { |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
583 if (ev->write) { |
| 589 | 584 recv_action = "proxying and reading from client"; |
| 585 send_action = "proxying and sending to upstream"; | |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
586 src = s->connection; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
587 dst = c; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
588 b = s->buffer; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
589 |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
590 } else { |
| 589 | 591 recv_action = "proxying and reading from upstream"; |
| 592 send_action = "proxying and sending to client"; | |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
593 src = c; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
594 dst = s->connection; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
595 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
|
596 } |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
597 } |
|
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 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
|
600 |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
601 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
|
602 "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
|
603 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
|
604 |
| 583 | 605 for ( ;; ) { |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
606 |
| 583 | 607 if (do_write) { |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
608 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
609 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
|
610 |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
611 if (size && dst->write->ready) { |
| 583 | 612 c->log->action = send_action; |
| 613 | |
| 539 | 614 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
|
615 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
616 if (n == NGX_ERROR) { |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
617 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
|
618 return; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
619 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
620 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
621 if (n > 0) { |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
622 b->pos += n; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
623 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
624 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
|
625 b->pos = b->start; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
626 b->last = b->start; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
627 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
628 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
629 } |
|
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630 } |
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631 |
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419
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632 size = b->end - b->last; |
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633 |
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423
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634 if (size && src->read->ready) { |
| 583 | 635 c->log->action = recv_action; |
| 636 | |
| 539 | 637 n = src->recv(src, b->last, size); |
|
418
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638 |
| 583 | 639 if (n == NGX_AGAIN || n == 0) { |
| 640 break; | |
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641 } |
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642 |
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643 if (n > 0) { |
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644 do_write = 1; |
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645 b->last += n; |
| 583 | 646 |
| 647 continue; | |
|
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648 } |
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649 |
| 583 | 650 if (n == NGX_ERROR) { |
| 651 src->read->eof = 1; | |
| 539 | 652 } |
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653 } |
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654 |
| 583 | 655 break; |
| 656 } | |
| 657 | |
| 658 c->log->action = "proxying"; | |
| 659 | |
| 660 if ((s->connection->read->eof || s->proxy->upstream.connection->read->eof) | |
| 661 && s->buffer->pos == s->buffer->last | |
| 662 && s->proxy->buffer->pos == s->proxy->buffer->last) | |
| 663 { | |
| 664 action = c->log->action; | |
| 665 c->log->action = NULL; | |
| 666 ngx_log_error(NGX_LOG_INFO, c->log, 0, "proxied session done"); | |
| 667 c->log->action = action; | |
| 668 | |
| 669 ngx_imap_proxy_close_session(s); | |
| 670 return; | |
| 671 } | |
| 672 | |
| 673 if (ngx_handle_write_event(dst->write, 0) == NGX_ERROR) { | |
| 674 ngx_imap_proxy_close_session(s); | |
| 675 return; | |
| 676 } | |
| 677 | |
| 678 if (ngx_handle_read_event(dst->read, 0) == NGX_ERROR) { | |
| 679 ngx_imap_proxy_close_session(s); | |
| 680 return; | |
| 681 } | |
| 682 | |
| 683 if (ngx_handle_write_event(src->write, 0) == NGX_ERROR) { | |
| 684 ngx_imap_proxy_close_session(s); | |
| 685 return; | |
| 686 } | |
| 687 | |
| 688 if (ngx_handle_read_event(src->read, 0) == NGX_ERROR) { | |
| 689 ngx_imap_proxy_close_session(s); | |
| 690 return; | |
| 691 } | |
| 692 | |
| 693 if (c == s->connection) { | |
| 694 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); | |
| 695 ngx_add_timer(c->read, pcf->timeout); | |
| 696 } | |
|
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697 } |
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698 |
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699 |
| 521 | 700 static void |
| 527 | 701 ngx_imap_proxy_internal_server_error(ngx_imap_session_t *s) |
| 702 { | |
| 703 if (s->proxy->upstream.connection) { | |
| 704 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
| 705 "close imap proxy connection: %d", | |
| 706 s->proxy->upstream.connection->fd); | |
| 707 | |
| 708 ngx_close_connection(s->proxy->upstream.connection); | |
| 709 } | |
| 710 | |
| 711 ngx_imap_session_internal_server_error(s); | |
| 712 } | |
| 713 | |
| 714 | |
| 715 static void | |
| 521 | 716 ngx_imap_proxy_close_session(ngx_imap_session_t *s) |
|
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717 { |
| 521 | 718 if (s->proxy->upstream.connection) { |
| 719 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
| 720 "close imap proxy connection: %d", | |
| 721 s->proxy->upstream.connection->fd); | |
| 722 | |
| 723 ngx_close_connection(s->proxy->upstream.connection); | |
|
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724 } |
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725 |
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726 ngx_imap_close_connection(s->connection); |
|
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727 } |
| 521 | 728 |
| 729 | |
| 730 static void * | |
| 731 ngx_imap_proxy_create_conf(ngx_conf_t *cf) | |
| 577 | 732 { |
| 521 | 733 ngx_imap_proxy_conf_t *pcf; |
| 577 | 734 |
| 521 | 735 pcf = ngx_pcalloc(cf->pool, sizeof(ngx_imap_proxy_conf_t)); |
| 736 if (pcf == NULL) { | |
| 737 return NGX_CONF_ERROR; | |
| 738 } | |
| 739 | |
| 740 pcf->enable = NGX_CONF_UNSET; | |
| 539 | 741 pcf->buffer_size = NGX_CONF_UNSET_SIZE; |
| 742 pcf->timeout = NGX_CONF_UNSET_MSEC; | |
| 521 | 743 |
| 744 return pcf; | |
| 745 } | |
| 746 | |
| 747 | |
| 748 static char * | |
| 749 ngx_imap_proxy_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 750 { | |
| 751 ngx_imap_proxy_conf_t *prev = parent; | |
| 752 ngx_imap_proxy_conf_t *conf = child; | |
| 753 | |
| 539 | 754 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
| 755 ngx_conf_merge_size_value(conf->buffer_size, prev->buffer_size, | |
| 756 (size_t) ngx_pagesize); | |
| 757 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 24 * 60 * 60000); | |
| 521 | 758 |
| 759 return NGX_CONF_OK; | |
| 760 } |