Mercurial > hg > nginx
annotate src/imap/ngx_imap_proxy_module.c @ 857:739b997da512
proxy_pass_error_message
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Fri, 17 Nov 2006 14:22:51 +0000 |
| parents | 6d5c1535bb9d |
| children | 4d68c486fcb0 |
| 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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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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12 |
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13 |
| 521 | 14 typedef struct { |
| 15 ngx_flag_t enable; | |
| 857 | 16 ngx_flag_t pass_error_message; |
| 539 | 17 size_t buffer_size; |
| 18 ngx_msec_t timeout; | |
| 521 | 19 } ngx_imap_proxy_conf_t; |
| 20 | |
| 21 | |
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22 static void ngx_imap_proxy_block_read(ngx_event_t *rev); |
| 527 | 23 static void ngx_imap_proxy_imap_handler(ngx_event_t *rev); |
| 24 static void ngx_imap_proxy_pop3_handler(ngx_event_t *rev); | |
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25 static void ngx_imap_proxy_dummy_handler(ngx_event_t *ev); |
| 527 | 26 static ngx_int_t ngx_imap_proxy_read_response(ngx_imap_session_t *s, |
| 663 | 27 ngx_uint_t state); |
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28 static void ngx_imap_proxy_handler(ngx_event_t *ev); |
| 857 | 29 static void ngx_imap_proxy_upstream_error(ngx_imap_session_t *s); |
| 527 | 30 static void ngx_imap_proxy_internal_server_error(ngx_imap_session_t *s); |
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31 static void ngx_imap_proxy_close_session(ngx_imap_session_t *s); |
| 521 | 32 static void *ngx_imap_proxy_create_conf(ngx_conf_t *cf); |
| 33 static char *ngx_imap_proxy_merge_conf(ngx_conf_t *cf, void *parent, | |
| 34 void *child); | |
| 35 | |
| 36 | |
| 37 static ngx_command_t ngx_imap_proxy_commands[] = { | |
| 539 | 38 |
| 521 | 39 { ngx_string("proxy"), |
| 40 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_FLAG, | |
| 41 ngx_conf_set_flag_slot, | |
| 42 NGX_IMAP_SRV_CONF_OFFSET, | |
| 43 offsetof(ngx_imap_proxy_conf_t, enable), | |
| 44 NULL }, | |
| 45 | |
| 539 | 46 { ngx_string("proxy_buffer"), |
| 47 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, | |
| 48 ngx_conf_set_size_slot, | |
| 49 NGX_IMAP_SRV_CONF_OFFSET, | |
| 50 offsetof(ngx_imap_proxy_conf_t, buffer_size), | |
| 51 NULL }, | |
| 52 | |
| 53 { ngx_string("proxy_timeout"), | |
| 54 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, | |
| 55 ngx_conf_set_msec_slot, | |
| 56 NGX_IMAP_SRV_CONF_OFFSET, | |
| 57 offsetof(ngx_imap_proxy_conf_t, timeout), | |
| 58 NULL }, | |
| 59 | |
| 857 | 60 { ngx_string("proxy_pass_error_message"), |
| 61 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, | |
| 62 ngx_conf_set_flag_slot, | |
| 63 NGX_IMAP_SRV_CONF_OFFSET, | |
| 64 offsetof(ngx_imap_proxy_conf_t, pass_error_message), | |
| 65 NULL }, | |
| 66 | |
| 521 | 67 ngx_null_command |
| 68 }; | |
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69 |
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70 |
| 521 | 71 static ngx_imap_module_t ngx_imap_proxy_module_ctx = { |
| 72 NULL, /* create main configuration */ | |
| 73 NULL, /* init main configuration */ | |
| 74 | |
| 75 ngx_imap_proxy_create_conf, /* create server configuration */ | |
| 76 ngx_imap_proxy_merge_conf /* merge server configuration */ | |
| 77 }; | |
| 78 | |
| 79 | |
| 80 ngx_module_t ngx_imap_proxy_module = { | |
| 81 NGX_MODULE_V1, | |
| 82 &ngx_imap_proxy_module_ctx, /* module context */ | |
| 83 ngx_imap_proxy_commands, /* module directives */ | |
| 84 NGX_IMAP_MODULE, /* module type */ | |
| 541 | 85 NULL, /* init master */ |
| 521 | 86 NULL, /* init module */ |
| 541 | 87 NULL, /* init process */ |
| 88 NULL, /* init thread */ | |
| 89 NULL, /* exit thread */ | |
| 90 NULL, /* exit process */ | |
| 91 NULL, /* exit master */ | |
| 92 NGX_MODULE_V1_PADDING | |
| 521 | 93 }; |
| 94 | |
| 95 | |
| 96 void | |
| 97 ngx_imap_proxy_init(ngx_imap_session_t *s, ngx_peers_t *peers) | |
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98 { |
| 587 | 99 int keepalive; |
| 527 | 100 ngx_int_t rc; |
| 101 ngx_imap_proxy_ctx_t *p; | |
| 102 ngx_imap_core_srv_conf_t *cscf; | |
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103 |
| 587 | 104 s->connection->log->action = "connecting to upstream"; |
| 105 | |
| 106 cscf = ngx_imap_get_module_srv_conf(s, ngx_imap_core_module); | |
| 107 | |
| 108 if (cscf->so_keepalive) { | |
| 109 keepalive = 1; | |
| 110 | |
| 111 if (setsockopt(s->connection->fd, SOL_SOCKET, SO_KEEPALIVE, | |
| 112 (const void *) &keepalive, sizeof(int)) | |
| 113 == -1) | |
| 114 { | |
| 115 ngx_log_error(NGX_LOG_ALERT, s->connection->log, ngx_socket_errno, | |
| 116 "setsockopt(SO_KEEPALIVE) failed"); | |
| 117 } | |
| 118 } | |
| 119 | |
| 501 | 120 p = ngx_pcalloc(s->connection->pool, sizeof(ngx_imap_proxy_ctx_t)); |
| 121 if (p == NULL) { | |
| 527 | 122 ngx_imap_session_internal_server_error(s); |
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123 return; |
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124 } |
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125 |
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126 s->proxy = p; |
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127 |
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128 p->upstream.peers = peers; |
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129 p->upstream.log = s->connection->log; |
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130 p->upstream.log_error = NGX_ERROR_ERR; |
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131 |
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132 rc = ngx_event_connect_peer(&p->upstream); |
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133 |
| 543 | 134 if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) { |
| 135 ngx_imap_proxy_internal_server_error(s); | |
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136 return; |
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137 } |
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138 |
| 527 | 139 ngx_add_timer(p->upstream.connection->read, cscf->timeout); |
| 140 | |
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141 p->upstream.connection->data = s; |
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142 p->upstream.connection->pool = s->connection->pool; |
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143 |
| 509 | 144 s->connection->read->handler = ngx_imap_proxy_block_read; |
| 145 p->upstream.connection->write->handler = ngx_imap_proxy_dummy_handler; | |
| 527 | 146 |
| 147 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { | |
| 148 p->upstream.connection->read->handler = ngx_imap_proxy_pop3_handler; | |
| 149 s->imap_state = ngx_pop3_start; | |
| 150 | |
| 151 } else { | |
| 152 p->upstream.connection->read->handler = ngx_imap_proxy_imap_handler; | |
| 153 s->imap_state = ngx_imap_start; | |
| 154 } | |
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155 } |
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156 |
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157 |
| 521 | 158 static void |
| 159 ngx_imap_proxy_block_read(ngx_event_t *rev) | |
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160 { |
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161 ngx_connection_t *c; |
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162 ngx_imap_session_t *s; |
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163 |
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164 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy block read"); |
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165 |
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166 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { |
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167 c = rev->data; |
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168 s = c->data; |
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169 |
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170 ngx_imap_proxy_close_session(s); |
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171 } |
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172 } |
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173 |
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174 |
| 521 | 175 static void |
| 527 | 176 ngx_imap_proxy_imap_handler(ngx_event_t *rev) |
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177 { |
| 539 | 178 u_char *p; |
| 179 ngx_int_t rc; | |
| 180 ngx_str_t line; | |
| 181 ngx_connection_t *c; | |
| 182 ngx_imap_session_t *s; | |
| 183 ngx_imap_proxy_conf_t *pcf; | |
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184 |
| 527 | 185 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, |
| 186 "imap proxy imap auth handler"); | |
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187 |
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188 c = rev->data; |
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189 s = c->data; |
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190 |
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191 if (rev->timedout) { |
| 527 | 192 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, |
| 193 "upstream timed out"); | |
| 577 | 194 c->timedout = 1; |
| 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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199 if (s->proxy->buffer == NULL) { |
| 539 | 200 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
| 527 | 201 |
| 539 | 202 s->proxy->buffer = ngx_create_temp_buf(c->pool, pcf->buffer_size); |
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203 if (s->proxy->buffer == NULL) { |
| 527 | 204 ngx_imap_proxy_internal_server_error(s); |
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205 return; |
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206 } |
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207 } |
|
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Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
208 |
| 663 | 209 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
|
210 |
|
47709bff4468
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parents:
418
diff
changeset
|
211 if (rc == NGX_AGAIN) { |
|
47709bff4468
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parents:
418
diff
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|
212 return; |
|
47709bff4468
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parents:
418
diff
changeset
|
213 } |
|
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Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
214 |
| 571 | 215 if (rc == NGX_ERROR) { |
| 857 | 216 ngx_imap_proxy_upstream_error(s); |
|
422
edaefb2a20fc
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parents:
419
diff
changeset
|
217 return; |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
218 } |
|
419
47709bff4468
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parents:
418
diff
changeset
|
219 |
| 527 | 220 switch (s->imap_state) { |
| 221 | |
| 222 case ngx_imap_start: | |
| 223 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
| 224 "imap proxy send login"); | |
|
419
47709bff4468
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Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
225 |
| 587 | 226 s->connection->log->action = "sending LOGIN command to upstream"; |
| 227 | |
| 527 | 228 line.len = s->tag.len + sizeof("LOGIN ") - 1 |
| 229 + 1 + NGX_SIZE_T_LEN + 1 + 2; | |
| 230 line.data = ngx_palloc(c->pool, line.len); | |
| 231 if (line.data == NULL) { | |
| 232 ngx_imap_proxy_internal_server_error(s); | |
| 233 return; | |
| 234 } | |
| 235 | |
| 236 line.len = ngx_sprintf(line.data, "%VLOGIN {%uz}" CRLF, | |
| 237 &s->tag, s->login.len) | |
| 238 - line.data; | |
| 239 | |
| 240 s->imap_state = ngx_imap_login; | |
| 241 break; | |
| 242 | |
| 243 case ngx_imap_login: | |
|
422
edaefb2a20fc
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Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
244 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
|
245 |
| 587 | 246 s->connection->log->action = "sending user name to upstream"; |
| 247 | |
| 529 | 248 line.len = s->login.len + 1 + 1 + NGX_SIZE_T_LEN + 1 + 2; |
| 527 | 249 line.data = ngx_palloc(c->pool, line.len); |
| 250 if (line.data == NULL) { | |
| 251 ngx_imap_proxy_internal_server_error(s); | |
| 252 return; | |
| 253 } | |
| 254 | |
| 529 | 255 line.len = ngx_sprintf(line.data, "%V {%uz}" CRLF, |
| 527 | 256 &s->login, s->passwd.len) |
| 257 - line.data; | |
| 258 | |
| 259 s->imap_state = ngx_imap_user; | |
| 260 break; | |
| 261 | |
| 262 case ngx_imap_user: | |
| 263 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
| 264 "imap proxy send passwd"); | |
| 265 | |
| 587 | 266 s->connection->log->action = "sending password to upstream"; |
| 267 | |
| 527 | 268 line.len = s->passwd.len + 2; |
| 501 | 269 line.data = ngx_palloc(c->pool, line.len); |
| 270 if (line.data == NULL) { | |
| 527 | 271 ngx_imap_proxy_internal_server_error(s); |
| 272 return; | |
| 273 } | |
| 274 | |
| 275 p = ngx_cpymem(line.data, s->passwd.data, s->passwd.len); | |
| 276 *p++ = CR; *p = LF; | |
| 277 | |
| 278 s->imap_state = ngx_imap_passwd; | |
| 279 break; | |
| 280 | |
| 663 | 281 case ngx_imap_passwd: |
| 282 s->connection->read->handler = ngx_imap_proxy_handler; | |
| 283 s->connection->write->handler = ngx_imap_proxy_handler; | |
| 284 rev->handler = ngx_imap_proxy_handler; | |
| 285 c->write->handler = ngx_imap_proxy_handler; | |
| 286 | |
| 287 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); | |
| 288 ngx_add_timer(s->connection->read, pcf->timeout); | |
| 289 ngx_del_timer(c->read); | |
| 290 | |
| 291 c->log->action = NULL; | |
| 292 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
| 293 | |
| 294 ngx_imap_proxy_handler(s->connection->write); | |
| 295 | |
| 296 return; | |
| 297 | |
| 527 | 298 default: |
| 299 #if (NGX_SUPPRESS_WARN) | |
| 300 line.len = 0; | |
| 301 line.data = NULL; | |
| 302 #endif | |
| 303 break; | |
| 304 } | |
| 305 | |
| 539 | 306 if (c->send(c, line.data, line.len) < (ssize_t) line.len) { |
| 527 | 307 /* |
| 308 * we treat the incomplete sending as NGX_ERROR | |
| 309 * because it is very strange here | |
| 310 */ | |
| 311 ngx_imap_proxy_internal_server_error(s); | |
| 312 return; | |
| 313 } | |
| 314 | |
| 315 s->proxy->buffer->pos = s->proxy->buffer->start; | |
| 316 s->proxy->buffer->last = s->proxy->buffer->start; | |
| 317 } | |
| 318 | |
| 319 | |
| 320 static void | |
| 321 ngx_imap_proxy_pop3_handler(ngx_event_t *rev) | |
| 322 { | |
| 539 | 323 u_char *p; |
| 324 ngx_int_t rc; | |
| 325 ngx_str_t line; | |
| 326 ngx_connection_t *c; | |
| 327 ngx_imap_session_t *s; | |
| 328 ngx_imap_proxy_conf_t *pcf; | |
| 527 | 329 |
| 330 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
| 331 "imap proxy pop3 auth handler"); | |
| 332 | |
| 333 c = rev->data; | |
| 334 s = c->data; | |
| 335 | |
| 336 if (rev->timedout) { | |
| 337 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, | |
| 338 "upstream timed out"); | |
| 577 | 339 c->timedout = 1; |
| 527 | 340 ngx_imap_proxy_internal_server_error(s); |
| 341 return; | |
| 342 } | |
| 343 | |
| 344 if (s->proxy->buffer == NULL) { | |
| 539 | 345 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
| 527 | 346 |
| 539 | 347 s->proxy->buffer = ngx_create_temp_buf(c->pool, pcf->buffer_size); |
| 527 | 348 if (s->proxy->buffer == NULL) { |
| 349 ngx_imap_proxy_internal_server_error(s); | |
| 350 return; | |
| 351 } | |
| 352 } | |
| 353 | |
| 663 | 354 rc = ngx_imap_proxy_read_response(s, 0); |
| 527 | 355 |
| 356 if (rc == NGX_AGAIN) { | |
| 357 return; | |
| 358 } | |
| 359 | |
| 571 | 360 if (rc == NGX_ERROR) { |
| 857 | 361 ngx_imap_proxy_upstream_error(s); |
| 527 | 362 return; |
| 363 } | |
| 364 | |
| 365 switch (s->imap_state) { | |
| 366 | |
| 367 case ngx_pop3_start: | |
| 368 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy send user"); | |
| 369 | |
| 587 | 370 s->connection->log->action = "sending user name to upstream"; |
| 371 | |
| 527 | 372 line.len = sizeof("USER ") - 1 + s->login.len + 2; |
| 373 line.data = ngx_palloc(c->pool, line.len); | |
| 374 if (line.data == NULL) { | |
| 375 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
|
376 return; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
377 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
378 |
|
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
379 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
|
380 p = ngx_cpymem(p, s->login.data, s->login.len); |
| 501 | 381 *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
|
382 |
| 527 | 383 s->imap_state = ngx_pop3_user; |
| 384 break; | |
| 385 | |
| 386 case ngx_pop3_user: | |
| 387 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy send pass"); | |
| 388 | |
| 587 | 389 s->connection->log->action = "sending password to upstream"; |
| 390 | |
| 527 | 391 line.len = sizeof("PASS ") - 1 + s->passwd.len + 2; |
| 392 line.data = ngx_palloc(c->pool, line.len); | |
| 393 if (line.data == NULL) { | |
| 394 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
|
395 return; |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
396 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
397 |
| 527 | 398 p = ngx_cpymem(line.data, "PASS ", sizeof("PASS ") - 1); |
| 399 p = ngx_cpymem(p, s->passwd.data, s->passwd.len); | |
| 400 *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
|
401 |
| 527 | 402 s->imap_state = ngx_pop3_passwd; |
| 403 break; | |
|
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
404 |
| 663 | 405 case ngx_pop3_passwd: |
| 406 s->connection->read->handler = ngx_imap_proxy_handler; | |
| 407 s->connection->write->handler = ngx_imap_proxy_handler; | |
| 408 rev->handler = ngx_imap_proxy_handler; | |
| 409 c->write->handler = ngx_imap_proxy_handler; | |
| 410 | |
| 411 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); | |
| 412 ngx_add_timer(s->connection->read, pcf->timeout); | |
| 413 ngx_del_timer(c->read); | |
| 414 | |
| 415 c->log->action = NULL; | |
| 416 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
| 417 | |
| 418 ngx_imap_proxy_handler(s->connection->write); | |
| 419 | |
| 420 return; | |
| 421 | |
| 527 | 422 default: |
| 423 #if (NGX_SUPPRESS_WARN) | |
| 424 line.len = 0; | |
| 425 line.data = NULL; | |
| 426 #endif | |
| 427 break; | |
|
422
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 |
| 539 | 430 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
|
431 /* |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
432 * 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
|
433 * 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
|
434 */ |
| 527 | 435 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
|
436 return; |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
437 } |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
438 |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
439 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
|
440 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
|
441 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
442 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
443 |
| 521 | 444 static void |
| 583 | 445 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
|
446 { |
| 583 | 447 ngx_connection_t *c; |
| 448 ngx_imap_session_t *s; | |
| 449 | |
| 450 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, wev->log, 0, "imap proxy dummy handler"); | |
| 451 | |
| 452 if (ngx_handle_write_event(wev, 0) == NGX_ERROR) { | |
| 453 c = wev->data; | |
| 454 s = c->data; | |
| 455 | |
| 456 ngx_imap_proxy_close_session(s); | |
| 457 } | |
|
419
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 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
460 |
| 521 | 461 static ngx_int_t |
| 663 | 462 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
|
463 { |
| 857 | 464 u_char *p; |
| 465 ssize_t n; | |
| 466 ngx_buf_t *b; | |
| 467 ngx_imap_proxy_conf_t *pcf; | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
468 |
| 587 | 469 s->connection->log->action = "reading response from upstream"; |
| 470 | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
471 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
|
472 |
| 539 | 473 n = s->proxy->upstream.connection->recv(s->proxy->upstream.connection, |
| 474 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
|
475 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
476 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
|
477 return NGX_ERROR; |
|
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 (n == NGX_AGAIN) { |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
481 return NGX_AGAIN; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
482 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
483 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
484 b->last += n; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
485 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
486 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
|
487 return NGX_AGAIN; |
|
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 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
490 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
|
491 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
|
492 *(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
|
493 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
|
494 "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
|
495 b->pos); |
| 571 | 496 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
|
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 return NGX_AGAIN; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
500 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
501 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
502 p = b->pos; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
503 |
| 527 | 504 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { |
| 505 if (p[0] == '+' && p[1] == 'O' && p[2] == 'K') { | |
| 506 return NGX_OK; | |
| 507 } | |
| 508 | |
| 509 } else { | |
| 663 | 510 switch (state) { |
| 511 | |
| 512 case ngx_imap_start: | |
| 527 | 513 if (p[0] == '*' && p[1] == ' ' && p[2] == 'O' && p[3] == 'K') { |
| 514 return NGX_OK; | |
| 515 } | |
| 663 | 516 break; |
| 527 | 517 |
| 663 | 518 case ngx_imap_login: |
| 519 case ngx_imap_user: | |
| 529 | 520 if (p[0] == '+') { |
| 527 | 521 return NGX_OK; |
| 522 } | |
| 663 | 523 break; |
| 524 | |
| 525 case ngx_imap_passwd: | |
| 526 if (ngx_strncmp(p, s->tag.data, s->tag.len) == 0) { | |
| 527 p += s->tag.len; | |
| 528 if (p[0] == 'O' && p[1] == 'K') { | |
| 529 return NGX_OK; | |
| 530 } | |
| 531 } | |
| 532 break; | |
| 527 | 533 } |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
534 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
535 |
| 857 | 536 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
| 537 | |
| 538 if (pcf->pass_error_message == 0) { | |
| 539 *(b->last - 2) = '\0'; | |
| 540 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 541 "upstream sent invalid response: \"%s\"", p); | |
| 542 return NGX_ERROR; | |
| 543 } | |
| 544 | |
| 545 s->out.len = b->last - p - 2; | |
| 546 s->out.data = p; | |
| 547 | |
| 548 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0, | |
| 549 "upstream sent invalid response: \"%V\"", &s->out); | |
| 550 | |
| 551 s->out.len = b->last - b->pos; | |
| 552 s->out.data = b->pos; | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
553 |
| 571 | 554 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
|
555 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
556 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
557 |
| 521 | 558 static void |
| 559 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
|
560 { |
| 583 | 561 char *action, *recv_action, *send_action; |
| 539 | 562 size_t size; |
| 563 ssize_t n; | |
| 564 ngx_buf_t *b; | |
| 583 | 565 ngx_uint_t do_write; |
| 539 | 566 ngx_connection_t *c, *src, *dst; |
| 567 ngx_imap_session_t *s; | |
| 568 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
|
569 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
570 c = ev->data; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
571 s = c->data; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
572 |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
573 if (ev->timedout) { |
| 583 | 574 c->log->action = "proxying"; |
| 575 | |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
576 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
|
577 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
|
578 "client timed out"); |
| 577 | 579 c->timedout = 1; |
| 580 | |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
581 } else { |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
582 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
|
583 "upstream timed out"); |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
584 } |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
585 |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
586 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
|
587 return; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
588 } |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
589 |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
590 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
|
591 if (ev->write) { |
| 583 | 592 recv_action = "proxying and reading from upstream"; |
| 593 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
|
594 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
|
595 dst = c; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
596 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
|
597 |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
598 } else { |
| 583 | 599 recv_action = "proxying and reading from client"; |
| 600 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
|
601 src = c; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
602 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
|
603 b = s->buffer; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
604 } |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
605 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
606 } else { |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
607 if (ev->write) { |
| 589 | 608 recv_action = "proxying and reading from client"; |
| 609 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
|
610 src = s->connection; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
611 dst = c; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
612 b = s->buffer; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
613 |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
614 } else { |
| 589 | 615 recv_action = "proxying and reading from upstream"; |
| 616 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
|
617 src = c; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
618 dst = s->connection; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
619 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
|
620 } |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
621 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
622 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
623 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
|
624 |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
625 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
|
626 "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
|
627 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
|
628 |
| 583 | 629 for ( ;; ) { |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
630 |
| 583 | 631 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
|
632 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
633 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
|
634 |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
635 if (size && dst->write->ready) { |
| 583 | 636 c->log->action = send_action; |
| 637 | |
| 539 | 638 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
|
639 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
640 if (n == NGX_ERROR) { |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
641 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
|
642 return; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
643 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
644 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
645 if (n > 0) { |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
646 b->pos += n; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
647 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
648 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
|
649 b->pos = b->start; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
650 b->last = b->start; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
651 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
652 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
653 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
654 } |
|
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655 |
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656 size = b->end - b->last; |
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657 |
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423
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658 if (size && src->read->ready) { |
| 583 | 659 c->log->action = recv_action; |
| 660 | |
| 539 | 661 n = src->recv(src, b->last, size); |
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662 |
| 583 | 663 if (n == NGX_AGAIN || n == 0) { |
| 664 break; | |
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665 } |
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666 |
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667 if (n > 0) { |
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668 do_write = 1; |
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669 b->last += n; |
| 583 | 670 |
| 671 continue; | |
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672 } |
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673 |
| 583 | 674 if (n == NGX_ERROR) { |
| 675 src->read->eof = 1; | |
| 539 | 676 } |
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677 } |
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678 |
| 583 | 679 break; |
| 680 } | |
| 681 | |
| 682 c->log->action = "proxying"; | |
| 683 | |
| 684 if ((s->connection->read->eof || s->proxy->upstream.connection->read->eof) | |
| 685 && s->buffer->pos == s->buffer->last | |
| 686 && s->proxy->buffer->pos == s->proxy->buffer->last) | |
| 687 { | |
| 688 action = c->log->action; | |
| 689 c->log->action = NULL; | |
| 690 ngx_log_error(NGX_LOG_INFO, c->log, 0, "proxied session done"); | |
| 691 c->log->action = action; | |
| 692 | |
| 693 ngx_imap_proxy_close_session(s); | |
| 694 return; | |
| 695 } | |
| 696 | |
| 697 if (ngx_handle_write_event(dst->write, 0) == NGX_ERROR) { | |
| 698 ngx_imap_proxy_close_session(s); | |
| 699 return; | |
| 700 } | |
| 701 | |
| 702 if (ngx_handle_read_event(dst->read, 0) == NGX_ERROR) { | |
| 703 ngx_imap_proxy_close_session(s); | |
| 704 return; | |
| 705 } | |
| 706 | |
| 707 if (ngx_handle_write_event(src->write, 0) == NGX_ERROR) { | |
| 708 ngx_imap_proxy_close_session(s); | |
| 709 return; | |
| 710 } | |
| 711 | |
| 712 if (ngx_handle_read_event(src->read, 0) == NGX_ERROR) { | |
| 713 ngx_imap_proxy_close_session(s); | |
| 714 return; | |
| 715 } | |
| 716 | |
| 717 if (c == s->connection) { | |
| 718 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); | |
| 719 ngx_add_timer(c->read, pcf->timeout); | |
| 720 } | |
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721 } |
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722 |
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723 |
| 521 | 724 static void |
| 857 | 725 ngx_imap_proxy_upstream_error(ngx_imap_session_t *s) |
| 726 { | |
| 727 if (s->proxy->upstream.connection) { | |
| 728 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
| 729 "close imap proxy connection: %d", | |
| 730 s->proxy->upstream.connection->fd); | |
| 731 | |
| 732 ngx_close_connection(s->proxy->upstream.connection); | |
| 733 } | |
| 734 | |
| 735 if (s->out.len == 0) { | |
| 736 ngx_imap_session_internal_server_error(s); | |
| 737 return; | |
| 738 } | |
| 739 | |
| 740 s->quit = 1; | |
| 741 ngx_imap_send(s->connection->write); | |
| 742 } | |
| 743 | |
| 744 | |
| 745 static void | |
| 527 | 746 ngx_imap_proxy_internal_server_error(ngx_imap_session_t *s) |
| 747 { | |
| 748 if (s->proxy->upstream.connection) { | |
| 749 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
| 750 "close imap proxy connection: %d", | |
| 751 s->proxy->upstream.connection->fd); | |
| 752 | |
| 753 ngx_close_connection(s->proxy->upstream.connection); | |
| 754 } | |
| 755 | |
| 756 ngx_imap_session_internal_server_error(s); | |
| 757 } | |
| 758 | |
| 759 | |
| 760 static void | |
| 521 | 761 ngx_imap_proxy_close_session(ngx_imap_session_t *s) |
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762 { |
| 521 | 763 if (s->proxy->upstream.connection) { |
| 764 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
| 765 "close imap proxy connection: %d", | |
| 766 s->proxy->upstream.connection->fd); | |
| 767 | |
| 768 ngx_close_connection(s->proxy->upstream.connection); | |
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769 } |
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770 |
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771 ngx_imap_close_connection(s->connection); |
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772 } |
| 521 | 773 |
| 774 | |
| 775 static void * | |
| 776 ngx_imap_proxy_create_conf(ngx_conf_t *cf) | |
| 577 | 777 { |
| 521 | 778 ngx_imap_proxy_conf_t *pcf; |
| 577 | 779 |
| 521 | 780 pcf = ngx_pcalloc(cf->pool, sizeof(ngx_imap_proxy_conf_t)); |
| 781 if (pcf == NULL) { | |
| 782 return NGX_CONF_ERROR; | |
| 783 } | |
| 784 | |
| 785 pcf->enable = NGX_CONF_UNSET; | |
| 857 | 786 pcf->pass_error_message = NGX_CONF_UNSET; |
| 539 | 787 pcf->buffer_size = NGX_CONF_UNSET_SIZE; |
| 788 pcf->timeout = NGX_CONF_UNSET_MSEC; | |
| 521 | 789 |
| 790 return pcf; | |
| 791 } | |
| 792 | |
| 793 | |
| 794 static char * | |
| 795 ngx_imap_proxy_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 796 { | |
| 797 ngx_imap_proxy_conf_t *prev = parent; | |
| 798 ngx_imap_proxy_conf_t *conf = child; | |
| 799 | |
| 539 | 800 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
| 857 | 801 ngx_conf_merge_value(conf->pass_error_message, prev->pass_error_message, 0); |
| 539 | 802 ngx_conf_merge_size_value(conf->buffer_size, prev->buffer_size, |
| 803 (size_t) ngx_pagesize); | |
| 804 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 24 * 60 * 60000); | |
| 521 | 805 |
| 806 return NGX_CONF_OK; | |
| 807 } |