Mercurial > hg > nginx
annotate src/imap/ngx_imap_proxy_module.c @ 583:4e296b7d25bf release-0.3.13
nginx-0.3.13-RELEASE import
*) Feature: the IMAP/POP3 proxy supports STARTTLS and STLS.
*) Bugfix: the IMAP/POP3 proxy did not work with the select, poll, and
/dev/poll methods.
*) Bugfix: in SSI handling.
*) Bugfix: now Solaris sendfilev() is not used to transfer the client
request body to FastCGI-server via the unix domain socket.
*) Bugfix: the "auth_basic" directive did not disable the
authorization; the bug had appeared in 0.3.11.
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Mon, 05 Dec 2005 13:18:09 +0000 |
| parents | 4d9ea73a627a |
| children | 284cc140593b |
| 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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12 |
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13 |
| 521 | 14 typedef struct { |
| 15 ngx_flag_t enable; | |
| 539 | 16 size_t buffer_size; |
| 17 ngx_msec_t timeout; | |
| 521 | 18 } ngx_imap_proxy_conf_t; |
| 19 | |
| 20 | |
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21 static void ngx_imap_proxy_block_read(ngx_event_t *rev); |
| 527 | 22 static void ngx_imap_proxy_imap_handler(ngx_event_t *rev); |
| 23 static void ngx_imap_proxy_pop3_handler(ngx_event_t *rev); | |
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24 static void ngx_imap_proxy_dummy_handler(ngx_event_t *ev); |
| 527 | 25 static ngx_int_t ngx_imap_proxy_read_response(ngx_imap_session_t *s, |
| 26 ngx_uint_t what); | |
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27 static void ngx_imap_proxy_handler(ngx_event_t *ev); |
| 527 | 28 static void ngx_imap_proxy_internal_server_error(ngx_imap_session_t *s); |
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29 static void ngx_imap_proxy_close_session(ngx_imap_session_t *s); |
| 521 | 30 static void *ngx_imap_proxy_create_conf(ngx_conf_t *cf); |
| 31 static char *ngx_imap_proxy_merge_conf(ngx_conf_t *cf, void *parent, | |
| 32 void *child); | |
| 33 | |
| 34 | |
| 571 | 35 #define NGX_IMAP_WAIT_OK 0 |
| 36 #define NGX_IMAP_WAIT_NEXT 1 | |
| 527 | 37 |
| 38 | |
| 521 | 39 static ngx_command_t ngx_imap_proxy_commands[] = { |
| 539 | 40 |
| 521 | 41 { ngx_string("proxy"), |
| 42 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_FLAG, | |
| 43 ngx_conf_set_flag_slot, | |
| 44 NGX_IMAP_SRV_CONF_OFFSET, | |
| 45 offsetof(ngx_imap_proxy_conf_t, enable), | |
| 46 NULL }, | |
| 47 | |
| 539 | 48 { ngx_string("proxy_buffer"), |
| 49 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, | |
| 50 ngx_conf_set_size_slot, | |
| 51 NGX_IMAP_SRV_CONF_OFFSET, | |
| 52 offsetof(ngx_imap_proxy_conf_t, buffer_size), | |
| 53 NULL }, | |
| 54 | |
| 55 { ngx_string("proxy_timeout"), | |
| 56 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, | |
| 57 ngx_conf_set_msec_slot, | |
| 58 NGX_IMAP_SRV_CONF_OFFSET, | |
| 59 offsetof(ngx_imap_proxy_conf_t, timeout), | |
| 60 NULL }, | |
| 61 | |
| 521 | 62 ngx_null_command |
| 63 }; | |
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64 |
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65 |
| 521 | 66 static ngx_imap_module_t ngx_imap_proxy_module_ctx = { |
| 67 NULL, /* create main configuration */ | |
| 68 NULL, /* init main configuration */ | |
| 69 | |
| 70 ngx_imap_proxy_create_conf, /* create server configuration */ | |
| 71 ngx_imap_proxy_merge_conf /* merge server configuration */ | |
| 72 }; | |
| 73 | |
| 74 | |
| 75 ngx_module_t ngx_imap_proxy_module = { | |
| 76 NGX_MODULE_V1, | |
| 77 &ngx_imap_proxy_module_ctx, /* module context */ | |
| 78 ngx_imap_proxy_commands, /* module directives */ | |
| 79 NGX_IMAP_MODULE, /* module type */ | |
| 541 | 80 NULL, /* init master */ |
| 521 | 81 NULL, /* init module */ |
| 541 | 82 NULL, /* init process */ |
| 83 NULL, /* init thread */ | |
| 84 NULL, /* exit thread */ | |
| 85 NULL, /* exit process */ | |
| 86 NULL, /* exit master */ | |
| 87 NGX_MODULE_V1_PADDING | |
| 521 | 88 }; |
| 89 | |
| 90 | |
| 91 void | |
| 92 ngx_imap_proxy_init(ngx_imap_session_t *s, ngx_peers_t *peers) | |
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93 { |
| 527 | 94 ngx_int_t rc; |
| 95 ngx_imap_proxy_ctx_t *p; | |
| 96 ngx_imap_core_srv_conf_t *cscf; | |
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97 |
| 501 | 98 p = ngx_pcalloc(s->connection->pool, sizeof(ngx_imap_proxy_ctx_t)); |
| 99 if (p == NULL) { | |
| 527 | 100 ngx_imap_session_internal_server_error(s); |
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101 return; |
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102 } |
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103 |
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104 s->proxy = p; |
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105 |
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106 p->upstream.peers = peers; |
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107 p->upstream.log = s->connection->log; |
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108 p->upstream.log_error = NGX_ERROR_ERR; |
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109 |
| 541 | 110 s->connection->log->action = "in upstream auth state"; |
| 111 | |
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112 rc = ngx_event_connect_peer(&p->upstream); |
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113 |
| 543 | 114 if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) { |
| 115 ngx_imap_proxy_internal_server_error(s); | |
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116 return; |
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117 } |
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118 |
| 527 | 119 cscf = ngx_imap_get_module_srv_conf(s, ngx_imap_core_module); |
| 120 ngx_add_timer(p->upstream.connection->read, cscf->timeout); | |
| 121 | |
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122 p->upstream.connection->data = s; |
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123 p->upstream.connection->pool = s->connection->pool; |
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124 |
| 509 | 125 s->connection->read->handler = ngx_imap_proxy_block_read; |
| 126 p->upstream.connection->write->handler = ngx_imap_proxy_dummy_handler; | |
| 527 | 127 |
| 128 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { | |
| 129 p->upstream.connection->read->handler = ngx_imap_proxy_pop3_handler; | |
| 130 s->imap_state = ngx_pop3_start; | |
| 131 | |
| 132 } else { | |
| 133 p->upstream.connection->read->handler = ngx_imap_proxy_imap_handler; | |
| 134 s->imap_state = ngx_imap_start; | |
| 135 } | |
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136 } |
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137 |
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138 |
| 521 | 139 static void |
| 140 ngx_imap_proxy_block_read(ngx_event_t *rev) | |
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141 { |
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142 ngx_connection_t *c; |
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143 ngx_imap_session_t *s; |
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144 |
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145 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy block read"); |
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146 |
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147 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { |
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148 c = rev->data; |
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149 s = c->data; |
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150 |
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151 ngx_imap_proxy_close_session(s); |
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152 } |
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153 } |
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154 |
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155 |
| 521 | 156 static void |
| 527 | 157 ngx_imap_proxy_imap_handler(ngx_event_t *rev) |
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158 { |
| 539 | 159 u_char *p; |
| 160 ngx_int_t rc; | |
| 161 ngx_str_t line; | |
| 162 ngx_connection_t *c; | |
| 163 ngx_imap_session_t *s; | |
| 164 ngx_imap_proxy_conf_t *pcf; | |
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165 |
| 527 | 166 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, |
| 167 "imap proxy imap auth handler"); | |
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168 |
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169 c = rev->data; |
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170 s = c->data; |
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171 |
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172 if (rev->timedout) { |
| 527 | 173 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, |
| 174 "upstream timed out"); | |
| 577 | 175 c->timedout = 1; |
| 527 | 176 ngx_imap_proxy_internal_server_error(s); |
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177 return; |
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178 } |
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179 |
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180 if (s->proxy->buffer == NULL) { |
| 539 | 181 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
| 527 | 182 |
| 539 | 183 s->proxy->buffer = ngx_create_temp_buf(c->pool, pcf->buffer_size); |
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184 if (s->proxy->buffer == NULL) { |
| 527 | 185 ngx_imap_proxy_internal_server_error(s); |
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186 return; |
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187 } |
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188 } |
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189 |
| 527 | 190 rc = ngx_imap_proxy_read_response(s, s->imap_state == ngx_imap_start ? |
| 191 NGX_IMAP_WAIT_OK : NGX_IMAP_WAIT_NEXT); | |
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parents:
418
diff
changeset
|
192 |
|
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193 if (rc == NGX_AGAIN) { |
|
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194 return; |
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195 } |
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|
196 |
| 571 | 197 if (rc == NGX_ERROR) { |
| 527 | 198 ngx_imap_proxy_internal_server_error(s); |
|
422
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199 return; |
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|
200 } |
|
419
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|
201 |
| 527 | 202 switch (s->imap_state) { |
| 203 | |
| 204 case ngx_imap_start: | |
| 205 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
| 206 "imap proxy send login"); | |
|
419
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|
207 |
| 527 | 208 line.len = s->tag.len + sizeof("LOGIN ") - 1 |
| 209 + 1 + NGX_SIZE_T_LEN + 1 + 2; | |
| 210 line.data = ngx_palloc(c->pool, line.len); | |
| 211 if (line.data == NULL) { | |
| 212 ngx_imap_proxy_internal_server_error(s); | |
| 213 return; | |
| 214 } | |
| 215 | |
| 216 line.len = ngx_sprintf(line.data, "%VLOGIN {%uz}" CRLF, | |
| 217 &s->tag, s->login.len) | |
| 218 - line.data; | |
| 219 | |
| 220 s->imap_state = ngx_imap_login; | |
| 221 break; | |
| 222 | |
| 223 case ngx_imap_login: | |
|
422
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|
224 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy send user"); |
|
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|
225 |
| 529 | 226 line.len = s->login.len + 1 + 1 + NGX_SIZE_T_LEN + 1 + 2; |
| 527 | 227 line.data = ngx_palloc(c->pool, line.len); |
| 228 if (line.data == NULL) { | |
| 229 ngx_imap_proxy_internal_server_error(s); | |
| 230 return; | |
| 231 } | |
| 232 | |
| 529 | 233 line.len = ngx_sprintf(line.data, "%V {%uz}" CRLF, |
| 527 | 234 &s->login, s->passwd.len) |
| 235 - line.data; | |
| 236 | |
| 237 s->imap_state = ngx_imap_user; | |
| 238 break; | |
| 239 | |
| 240 case ngx_imap_user: | |
| 241 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
| 242 "imap proxy send passwd"); | |
| 243 | |
| 244 line.len = s->passwd.len + 2; | |
| 501 | 245 line.data = ngx_palloc(c->pool, line.len); |
| 246 if (line.data == NULL) { | |
| 527 | 247 ngx_imap_proxy_internal_server_error(s); |
| 248 return; | |
| 249 } | |
| 250 | |
| 251 p = ngx_cpymem(line.data, s->passwd.data, s->passwd.len); | |
| 252 *p++ = CR; *p = LF; | |
| 253 | |
| 254 s->imap_state = ngx_imap_passwd; | |
| 255 break; | |
| 256 | |
| 257 default: | |
| 258 #if (NGX_SUPPRESS_WARN) | |
| 259 line.len = 0; | |
| 260 line.data = NULL; | |
| 261 #endif | |
| 262 break; | |
| 263 } | |
| 264 | |
| 539 | 265 if (c->send(c, line.data, line.len) < (ssize_t) line.len) { |
| 527 | 266 /* |
| 267 * we treat the incomplete sending as NGX_ERROR | |
| 268 * because it is very strange here | |
| 269 */ | |
| 270 ngx_imap_proxy_internal_server_error(s); | |
| 271 return; | |
| 272 } | |
| 273 | |
| 274 s->proxy->buffer->pos = s->proxy->buffer->start; | |
| 275 s->proxy->buffer->last = s->proxy->buffer->start; | |
| 276 | |
| 277 if (s->imap_state == ngx_imap_passwd) { | |
| 278 s->connection->read->handler = ngx_imap_proxy_handler; | |
| 279 s->connection->write->handler = ngx_imap_proxy_handler; | |
| 280 rev->handler = ngx_imap_proxy_handler; | |
| 281 c->write->handler = ngx_imap_proxy_handler; | |
| 531 | 282 |
| 539 | 283 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
| 284 ngx_add_timer(s->connection->read, pcf->timeout); | |
| 531 | 285 ngx_del_timer(c->read); |
| 541 | 286 |
| 547 | 287 c->log->action = NULL; |
| 288 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
| 527 | 289 } |
| 290 } | |
| 291 | |
| 292 | |
| 293 static void | |
| 294 ngx_imap_proxy_pop3_handler(ngx_event_t *rev) | |
| 295 { | |
| 539 | 296 u_char *p; |
| 297 ngx_int_t rc; | |
| 298 ngx_str_t line; | |
| 299 ngx_connection_t *c; | |
| 300 ngx_imap_session_t *s; | |
| 301 ngx_imap_proxy_conf_t *pcf; | |
| 527 | 302 |
| 303 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
| 304 "imap proxy pop3 auth handler"); | |
| 305 | |
| 306 c = rev->data; | |
| 307 s = c->data; | |
| 308 | |
| 309 if (rev->timedout) { | |
| 310 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, | |
| 311 "upstream timed out"); | |
| 577 | 312 c->timedout = 1; |
| 527 | 313 ngx_imap_proxy_internal_server_error(s); |
| 314 return; | |
| 315 } | |
| 316 | |
| 317 if (s->proxy->buffer == NULL) { | |
| 539 | 318 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
| 527 | 319 |
| 539 | 320 s->proxy->buffer = ngx_create_temp_buf(c->pool, pcf->buffer_size); |
| 527 | 321 if (s->proxy->buffer == NULL) { |
| 322 ngx_imap_proxy_internal_server_error(s); | |
| 323 return; | |
| 324 } | |
| 325 } | |
| 326 | |
| 327 rc = ngx_imap_proxy_read_response(s, NGX_IMAP_WAIT_OK); | |
| 328 | |
| 329 if (rc == NGX_AGAIN) { | |
| 330 return; | |
| 331 } | |
| 332 | |
| 571 | 333 if (rc == NGX_ERROR) { |
| 527 | 334 ngx_imap_proxy_internal_server_error(s); |
| 335 return; | |
| 336 } | |
| 337 | |
| 338 switch (s->imap_state) { | |
| 339 | |
| 340 case ngx_pop3_start: | |
| 341 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy send user"); | |
| 342 | |
| 343 line.len = sizeof("USER ") - 1 + s->login.len + 2; | |
| 344 line.data = ngx_palloc(c->pool, line.len); | |
| 345 if (line.data == NULL) { | |
| 346 ngx_imap_proxy_internal_server_error(s); | |
|
419
47709bff4468
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347 return; |
|
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parents:
418
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|
348 } |
|
47709bff4468
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parents:
418
diff
changeset
|
349 |
|
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
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parents:
419
diff
changeset
|
350 p = ngx_cpymem(line.data, "USER ", sizeof("USER ") - 1); |
|
edaefb2a20fc
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parents:
419
diff
changeset
|
351 p = ngx_cpymem(p, s->login.data, s->login.len); |
| 501 | 352 *p++ = CR; *p = LF; |
|
422
edaefb2a20fc
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parents:
419
diff
changeset
|
353 |
| 527 | 354 s->imap_state = ngx_pop3_user; |
| 355 break; | |
| 356 | |
| 357 case ngx_pop3_user: | |
| 358 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy send pass"); | |
| 359 | |
| 360 line.len = sizeof("PASS ") - 1 + s->passwd.len + 2; | |
| 361 line.data = ngx_palloc(c->pool, line.len); | |
| 362 if (line.data == NULL) { | |
| 363 ngx_imap_proxy_internal_server_error(s); | |
|
422
edaefb2a20fc
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Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
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|
364 return; |
|
419
47709bff4468
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parents:
418
diff
changeset
|
365 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
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parents:
418
diff
changeset
|
366 |
| 527 | 367 p = ngx_cpymem(line.data, "PASS ", sizeof("PASS ") - 1); |
| 368 p = ngx_cpymem(p, s->passwd.data, s->passwd.len); | |
| 369 *p++ = CR; *p = LF; | |
|
422
edaefb2a20fc
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parents:
419
diff
changeset
|
370 |
| 527 | 371 s->imap_state = ngx_pop3_passwd; |
| 372 break; | |
|
422
edaefb2a20fc
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parents:
419
diff
changeset
|
373 |
| 527 | 374 default: |
| 375 #if (NGX_SUPPRESS_WARN) | |
| 376 line.len = 0; | |
| 377 line.data = NULL; | |
| 378 #endif | |
| 379 break; | |
|
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
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parents:
419
diff
changeset
|
380 } |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
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parents:
419
diff
changeset
|
381 |
| 539 | 382 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
|
383 /* |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
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parents:
419
diff
changeset
|
384 * we treat the incomplete sending as NGX_ERROR |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
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parents:
419
diff
changeset
|
385 * 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
|
386 */ |
| 527 | 387 ngx_imap_proxy_internal_server_error(s); |
|
422
edaefb2a20fc
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parents:
419
diff
changeset
|
388 return; |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
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parents:
419
diff
changeset
|
389 } |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
390 |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
391 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
|
392 s->proxy->buffer->last = s->proxy->buffer->start; |
|
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
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parents:
419
diff
changeset
|
393 |
| 527 | 394 if (s->imap_state == ngx_pop3_passwd) { |
| 395 s->connection->read->handler = ngx_imap_proxy_handler; | |
| 396 s->connection->write->handler = ngx_imap_proxy_handler; | |
| 397 rev->handler = ngx_imap_proxy_handler; | |
| 398 c->write->handler = ngx_imap_proxy_handler; | |
| 531 | 399 |
| 539 | 400 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
| 401 ngx_add_timer(s->connection->read, pcf->timeout); | |
| 531 | 402 ngx_del_timer(c->read); |
| 541 | 403 |
| 547 | 404 c->log->action = NULL; |
| 405 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
| 527 | 406 } |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
407 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
408 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
409 |
| 521 | 410 static void |
| 583 | 411 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
|
412 { |
| 583 | 413 ngx_connection_t *c; |
| 414 ngx_imap_session_t *s; | |
| 415 | |
| 416 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, wev->log, 0, "imap proxy dummy handler"); | |
| 417 | |
| 418 if (ngx_handle_write_event(wev, 0) == NGX_ERROR) { | |
| 419 c = wev->data; | |
| 420 s = c->data; | |
| 421 | |
| 422 ngx_imap_proxy_close_session(s); | |
| 423 } | |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
424 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
425 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
426 |
| 521 | 427 static ngx_int_t |
| 527 | 428 ngx_imap_proxy_read_response(ngx_imap_session_t *s, ngx_uint_t what) |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
429 { |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
430 u_char *p; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
431 ssize_t n; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
432 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
|
433 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
434 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
|
435 |
| 539 | 436 n = s->proxy->upstream.connection->recv(s->proxy->upstream.connection, |
| 437 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
|
438 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
439 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
|
440 return NGX_ERROR; |
|
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 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
|
444 return NGX_AGAIN; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
445 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
446 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
447 b->last += n; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
448 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
449 if (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
|
450 return NGX_AGAIN; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
451 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
452 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
453 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
|
454 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
|
455 *(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
|
456 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
|
457 "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
|
458 b->pos); |
| 571 | 459 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
|
460 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
461 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
462 return NGX_AGAIN; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
463 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
464 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
465 p = b->pos; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
466 |
| 527 | 467 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { |
| 468 if (p[0] == '+' && p[1] == 'O' && p[2] == 'K') { | |
| 469 return NGX_OK; | |
| 470 } | |
| 471 | |
| 472 } else { | |
| 473 if (what == NGX_IMAP_WAIT_OK) { | |
| 474 if (p[0] == '*' && p[1] == ' ' && p[2] == 'O' && p[3] == 'K') { | |
| 475 return NGX_OK; | |
| 476 } | |
| 477 | |
| 478 } else { | |
| 529 | 479 if (p[0] == '+') { |
| 527 | 480 return NGX_OK; |
| 481 } | |
| 482 } | |
|
419
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 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
485 *(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
|
486 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, |
| 527 | 487 "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
|
488 |
| 571 | 489 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
|
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 |
| 521 | 493 static void |
| 494 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
|
495 { |
| 583 | 496 char *action, *recv_action, *send_action; |
| 539 | 497 size_t size; |
| 498 ssize_t n; | |
| 499 ngx_buf_t *b; | |
| 583 | 500 ngx_uint_t do_write; |
| 539 | 501 ngx_connection_t *c, *src, *dst; |
| 502 ngx_imap_session_t *s; | |
| 503 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
|
504 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
505 c = ev->data; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
506 s = c->data; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
507 |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
508 if (ev->timedout) { |
| 583 | 509 c->log->action = "proxying"; |
| 510 | |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
511 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
|
512 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
|
513 "client timed out"); |
| 577 | 514 c->timedout = 1; |
| 515 | |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
516 } else { |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
517 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
|
518 "upstream timed out"); |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
519 } |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
520 |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
521 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
|
522 return; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
523 } |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
524 |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
525 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
|
526 if (ev->write) { |
| 583 | 527 recv_action = "proxying and reading from upstream"; |
| 528 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
|
529 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
|
530 dst = c; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
531 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
|
532 |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
533 } else { |
| 583 | 534 recv_action = "proxying and reading from client"; |
| 535 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
|
536 src = c; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
537 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
|
538 b = s->buffer; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
539 } |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
540 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
541 } else { |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
542 if (ev->write) { |
| 583 | 543 recv_action = "proxying and reading from upstream"; |
| 544 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
|
545 src = s->connection; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
546 dst = c; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
547 b = s->buffer; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
548 |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
549 } else { |
| 583 | 550 recv_action = "proxying and reading from client"; |
| 551 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
|
552 src = c; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
553 dst = s->connection; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
554 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
|
555 } |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
556 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
557 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
558 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
|
559 |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
560 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
|
561 "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
|
562 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
|
563 |
| 583 | 564 for ( ;; ) { |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
565 |
| 583 | 566 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
|
567 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
568 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
|
569 |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
570 if (size && dst->write->ready) { |
| 583 | 571 c->log->action = send_action; |
| 572 | |
| 539 | 573 n = dst->send(dst, b->pos, size); |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
574 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
575 if (n == NGX_ERROR) { |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
576 ngx_imap_proxy_close_session(s); |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
577 return; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
578 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
579 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
580 if (n > 0) { |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
581 b->pos += n; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
582 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
583 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
|
584 b->pos = b->start; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
585 b->last = b->start; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
586 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
587 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
588 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
589 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
590 |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
591 size = b->end - b->last; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
592 |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
593 if (size && src->read->ready) { |
| 583 | 594 c->log->action = recv_action; |
| 595 | |
| 539 | 596 n = src->recv(src, b->last, size); |
|
418
cf072d26d6d6
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597 |
| 583 | 598 if (n == NGX_AGAIN || n == 0) { |
| 599 break; | |
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600 } |
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601 |
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602 if (n > 0) { |
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603 do_write = 1; |
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604 b->last += n; |
| 583 | 605 |
| 606 continue; | |
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607 } |
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608 |
| 583 | 609 if (n == NGX_ERROR) { |
| 610 src->read->eof = 1; | |
| 539 | 611 } |
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612 } |
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613 |
| 583 | 614 break; |
| 615 } | |
| 616 | |
| 617 c->log->action = "proxying"; | |
| 618 | |
| 619 if ((s->connection->read->eof || s->proxy->upstream.connection->read->eof) | |
| 620 && s->buffer->pos == s->buffer->last | |
| 621 && s->proxy->buffer->pos == s->proxy->buffer->last) | |
| 622 { | |
| 623 action = c->log->action; | |
| 624 c->log->action = NULL; | |
| 625 ngx_log_error(NGX_LOG_INFO, c->log, 0, "proxied session done"); | |
| 626 c->log->action = action; | |
| 627 | |
| 628 ngx_imap_proxy_close_session(s); | |
| 629 return; | |
| 630 } | |
| 631 | |
| 632 if (ngx_handle_write_event(dst->write, 0) == NGX_ERROR) { | |
| 633 ngx_imap_proxy_close_session(s); | |
| 634 return; | |
| 635 } | |
| 636 | |
| 637 if (ngx_handle_read_event(dst->read, 0) == NGX_ERROR) { | |
| 638 ngx_imap_proxy_close_session(s); | |
| 639 return; | |
| 640 } | |
| 641 | |
| 642 if (ngx_handle_write_event(src->write, 0) == NGX_ERROR) { | |
| 643 ngx_imap_proxy_close_session(s); | |
| 644 return; | |
| 645 } | |
| 646 | |
| 647 if (ngx_handle_read_event(src->read, 0) == NGX_ERROR) { | |
| 648 ngx_imap_proxy_close_session(s); | |
| 649 return; | |
| 650 } | |
| 651 | |
| 652 if (c == s->connection) { | |
| 653 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); | |
| 654 ngx_add_timer(c->read, pcf->timeout); | |
| 655 } | |
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656 } |
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657 |
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658 |
| 521 | 659 static void |
| 527 | 660 ngx_imap_proxy_internal_server_error(ngx_imap_session_t *s) |
| 661 { | |
| 662 if (s->proxy->upstream.connection) { | |
| 663 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
| 664 "close imap proxy connection: %d", | |
| 665 s->proxy->upstream.connection->fd); | |
| 666 | |
| 667 ngx_close_connection(s->proxy->upstream.connection); | |
| 668 } | |
| 669 | |
| 670 ngx_imap_session_internal_server_error(s); | |
| 671 } | |
| 672 | |
| 673 | |
| 674 static void | |
| 521 | 675 ngx_imap_proxy_close_session(ngx_imap_session_t *s) |
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676 { |
| 521 | 677 if (s->proxy->upstream.connection) { |
| 678 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
| 679 "close imap proxy connection: %d", | |
| 680 s->proxy->upstream.connection->fd); | |
| 681 | |
| 682 ngx_close_connection(s->proxy->upstream.connection); | |
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683 } |
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684 |
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685 ngx_imap_close_connection(s->connection); |
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686 } |
| 521 | 687 |
| 688 | |
| 689 static void * | |
| 690 ngx_imap_proxy_create_conf(ngx_conf_t *cf) | |
| 577 | 691 { |
| 521 | 692 ngx_imap_proxy_conf_t *pcf; |
| 577 | 693 |
| 521 | 694 pcf = ngx_pcalloc(cf->pool, sizeof(ngx_imap_proxy_conf_t)); |
| 695 if (pcf == NULL) { | |
| 696 return NGX_CONF_ERROR; | |
| 697 } | |
| 698 | |
| 699 pcf->enable = NGX_CONF_UNSET; | |
| 539 | 700 pcf->buffer_size = NGX_CONF_UNSET_SIZE; |
| 701 pcf->timeout = NGX_CONF_UNSET_MSEC; | |
| 521 | 702 |
| 703 return pcf; | |
| 704 } | |
| 705 | |
| 706 | |
| 707 static char * | |
| 708 ngx_imap_proxy_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 709 { | |
| 710 ngx_imap_proxy_conf_t *prev = parent; | |
| 711 ngx_imap_proxy_conf_t *conf = child; | |
| 712 | |
| 539 | 713 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
| 714 ngx_conf_merge_size_value(conf->buffer_size, prev->buffer_size, | |
| 715 (size_t) ngx_pagesize); | |
| 716 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 24 * 60 * 60000); | |
| 521 | 717 |
| 718 return NGX_CONF_OK; | |
| 719 } |