Mercurial > hg > nginx
annotate src/mail/ngx_mail_pop3_module.c @ 4159:718f2154b813 stable-1.0
Merging r3933, r4154:
A new fix for the case when ssl_session_cache defined, but ssl is not
enabled in any server. The previous r1033 does not help when unused zone
becomes used after reconfiguration, so it is backed out.
The initial thought was to make SSL modules independed from SSL implementation
and to keep OpenSSL code dependance as much as in separate files.
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Fri, 30 Sep 2011 13:36:33 +0000 |
| parents | 2a92804f4109 |
| children | d620f497c50f |
| rev | line source |
|---|---|
| 521 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 */ | |
| 5 | |
| 6 | |
| 7 #include <ngx_config.h> | |
| 8 #include <ngx_core.h> | |
| 9 #include <ngx_event.h> | |
| 1136 | 10 #include <ngx_mail.h> |
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11 #include <ngx_mail_pop3_module.h> |
| 521 | 12 |
| 13 | |
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14 static void *ngx_mail_pop3_create_srv_conf(ngx_conf_t *cf); |
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15 static char *ngx_mail_pop3_merge_srv_conf(ngx_conf_t *cf, void *parent, |
| 521 | 16 void *child); |
| 17 | |
| 18 | |
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19 static ngx_str_t ngx_mail_pop3_default_capabilities[] = { |
| 527 | 20 ngx_string("TOP"), |
| 21 ngx_string("USER"), | |
| 22 ngx_string("UIDL"), | |
| 23 ngx_null_string | |
| 24 }; | |
| 25 | |
| 26 | |
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27 static ngx_conf_bitmask_t ngx_mail_pop3_auth_methods[] = { |
| 1136 | 28 { ngx_string("plain"), NGX_MAIL_AUTH_PLAIN_ENABLED }, |
| 29 { ngx_string("apop"), NGX_MAIL_AUTH_APOP_ENABLED }, | |
| 30 { ngx_string("cram-md5"), NGX_MAIL_AUTH_CRAM_MD5_ENABLED }, | |
| 800 | 31 { ngx_null_string, 0 } |
| 32 }; | |
| 33 | |
| 34 | |
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35 static ngx_str_t ngx_mail_pop3_auth_plain_capability = |
| 809 | 36 ngx_string("+OK methods supported:" CRLF |
| 37 "LOGIN" CRLF | |
| 38 "PLAIN" CRLF | |
| 39 "." CRLF); | |
| 40 | |
| 41 | |
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42 static ngx_str_t ngx_mail_pop3_auth_cram_md5_capability = |
| 809 | 43 ngx_string("+OK methods supported:" CRLF |
| 44 "LOGIN" CRLF | |
| 45 "PLAIN" CRLF | |
| 46 "CRAM-MD5" CRLF | |
| 47 "." CRLF); | |
| 48 | |
| 49 | |
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50 static ngx_mail_protocol_t ngx_mail_pop3_protocol = { |
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51 ngx_string("pop3"), |
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52 { 110, 995, 0, 0 }, |
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53 NGX_MAIL_POP3_PROTOCOL, |
| 521 | 54 |
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55 ngx_mail_pop3_init_session, |
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56 ngx_mail_pop3_init_protocol, |
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57 ngx_mail_pop3_parse_command, |
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58 ngx_mail_pop3_auth_state, |
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59 |
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60 ngx_string("-ERR internal server error" CRLF) |
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61 }; |
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62 |
| 587 | 63 |
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64 static ngx_command_t ngx_mail_pop3_commands[] = { |
| 521 | 65 |
| 527 | 66 { ngx_string("pop3_capabilities"), |
| 1136 | 67 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, |
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68 ngx_mail_capabilities, |
| 1136 | 69 NGX_MAIL_SRV_CONF_OFFSET, |
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70 offsetof(ngx_mail_pop3_srv_conf_t, capabilities), |
| 527 | 71 NULL }, |
| 72 | |
| 1136 | 73 { ngx_string("pop3_auth"), |
| 74 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, | |
| 800 | 75 ngx_conf_set_bitmask_slot, |
| 1136 | 76 NGX_MAIL_SRV_CONF_OFFSET, |
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77 offsetof(ngx_mail_pop3_srv_conf_t, auth_methods), |
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78 &ngx_mail_pop3_auth_methods }, |
| 800 | 79 |
| 521 | 80 ngx_null_command |
| 81 }; | |
| 82 | |
| 83 | |
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84 static ngx_mail_module_t ngx_mail_pop3_module_ctx = { |
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85 &ngx_mail_pop3_protocol, /* protocol */ |
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86 |
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87 NULL, /* create main configuration */ |
| 521 | 88 NULL, /* init main configuration */ |
| 89 | |
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90 ngx_mail_pop3_create_srv_conf, /* create server configuration */ |
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91 ngx_mail_pop3_merge_srv_conf /* merge server configuration */ |
| 521 | 92 }; |
| 93 | |
| 94 | |
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95 ngx_module_t ngx_mail_pop3_module = { |
| 521 | 96 NGX_MODULE_V1, |
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97 &ngx_mail_pop3_module_ctx, /* module context */ |
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98 ngx_mail_pop3_commands, /* module directives */ |
| 1136 | 99 NGX_MAIL_MODULE, /* module type */ |
| 541 | 100 NULL, /* init master */ |
| 521 | 101 NULL, /* init module */ |
| 541 | 102 NULL, /* init process */ |
| 103 NULL, /* init thread */ | |
| 104 NULL, /* exit thread */ | |
| 105 NULL, /* exit process */ | |
| 106 NULL, /* exit master */ | |
| 107 NGX_MODULE_V1_PADDING | |
| 521 | 108 }; |
| 109 | |
| 110 | |
| 111 static void * | |
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112 ngx_mail_pop3_create_srv_conf(ngx_conf_t *cf) |
| 577 | 113 { |
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114 ngx_mail_pop3_srv_conf_t *pscf; |
| 641 | 115 |
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116 pscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_pop3_srv_conf_t)); |
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117 if (pscf == NULL) { |
| 527 | 118 return NULL; |
| 521 | 119 } |
| 120 | |
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121 if (ngx_array_init(&pscf->capabilities, cf->pool, 4, sizeof(ngx_str_t)) |
| 1136 | 122 != NGX_OK) |
| 123 { | |
| 124 return NULL; | |
| 125 } | |
| 126 | |
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127 return pscf; |
| 521 | 128 } |
| 129 | |
| 130 | |
| 131 static char * | |
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132 ngx_mail_pop3_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) |
| 521 | 133 { |
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134 ngx_mail_pop3_srv_conf_t *prev = parent; |
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135 ngx_mail_pop3_srv_conf_t *conf = child; |
| 521 | 136 |
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137 u_char *p; |
| 1136 | 138 size_t size, stls_only_size; |
| 527 | 139 ngx_str_t *c, *d; |
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140 ngx_uint_t i; |
| 1136 | 141 |
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142 ngx_conf_merge_bitmask_value(conf->auth_methods, |
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143 prev->auth_methods, |
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144 (NGX_CONF_BITMASK_SET |
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145 |NGX_MAIL_AUTH_PLAIN_ENABLED)); |
| 800 | 146 |
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147 if (conf->capabilities.nelts == 0) { |
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148 conf->capabilities = prev->capabilities; |
| 800 | 149 } |
| 150 | |
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151 if (conf->capabilities.nelts == 0) { |
| 527 | 152 |
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153 for (d = ngx_mail_pop3_default_capabilities; d->len; d++) { |
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154 c = ngx_array_push(&conf->capabilities); |
| 527 | 155 if (c == NULL) { |
| 156 return NGX_CONF_ERROR; | |
| 157 } | |
| 158 | |
| 159 *c = *d; | |
| 160 } | |
| 161 } | |
| 162 | |
| 163 size = sizeof("+OK Capability list follows" CRLF) - 1 | |
| 164 + sizeof("." CRLF) - 1; | |
| 165 | |
| 1136 | 166 stls_only_size = size + sizeof("STLS" CRLF) - 1; |
| 167 | |
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168 c = conf->capabilities.elts; |
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169 for (i = 0; i < conf->capabilities.nelts; i++) { |
| 527 | 170 size += c[i].len + sizeof(CRLF) - 1; |
| 1136 | 171 |
| 172 if (ngx_strcasecmp(c[i].data, (u_char *) "USER") == 0) { | |
| 173 continue; | |
| 174 } | |
| 175 | |
| 176 stls_only_size += c[i].len + sizeof(CRLF) - 1; | |
| 527 | 177 } |
| 178 | |
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179 if (conf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED) { |
| 809 | 180 size += sizeof("SASL LOGIN PLAIN CRAM-MD5" CRLF) - 1; |
| 181 | |
| 182 } else { | |
| 183 size += sizeof("SASL LOGIN PLAIN" CRLF) - 1; | |
| 184 } | |
| 185 | |
| 2049 | 186 p = ngx_pnalloc(cf->pool, size); |
| 583 | 187 if (p == NULL) { |
| 527 | 188 return NGX_CONF_ERROR; |
| 189 } | |
| 190 | |
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191 conf->capability.len = size; |
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192 conf->capability.data = p; |
| 583 | 193 |
| 194 p = ngx_cpymem(p, "+OK Capability list follows" CRLF, | |
| 195 sizeof("+OK Capability list follows" CRLF) - 1); | |
| 527 | 196 |
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197 for (i = 0; i < conf->capabilities.nelts; i++) { |
| 583 | 198 p = ngx_cpymem(p, c[i].data, c[i].len); |
| 199 *p++ = CR; *p++ = LF; | |
| 527 | 200 } |
| 201 | |
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202 if (conf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED) { |
| 809 | 203 p = ngx_cpymem(p, "SASL LOGIN PLAIN CRAM-MD5" CRLF, |
| 204 sizeof("SASL LOGIN PLAIN CRAM-MD5" CRLF) - 1); | |
| 205 | |
| 206 } else { | |
| 207 p = ngx_cpymem(p, "SASL LOGIN PLAIN" CRLF, | |
| 208 sizeof("SASL LOGIN PLAIN" CRLF) - 1); | |
| 209 } | |
| 210 | |
| 583 | 211 *p++ = '.'; *p++ = CR; *p = LF; |
| 212 | |
| 213 | |
| 214 size += sizeof("STLS" CRLF) - 1; | |
| 527 | 215 |
| 2049 | 216 p = ngx_pnalloc(cf->pool, size); |
| 583 | 217 if (p == NULL) { |
| 218 return NGX_CONF_ERROR; | |
| 219 } | |
| 220 | |
|
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Igor Sysoev <igor@sysoev.ru>
parents:
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changeset
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221 conf->starttls_capability.len = size; |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
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changeset
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222 conf->starttls_capability.data = p; |
| 583 | 223 |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
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224 p = ngx_cpymem(p, conf->capability.data, |
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f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
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225 conf->capability.len - (sizeof("." CRLF) - 1)); |
| 583 | 226 |
| 227 p = ngx_cpymem(p, "STLS" CRLF, sizeof("STLS" CRLF) - 1); | |
| 228 *p++ = '.'; *p++ = CR; *p = LF; | |
| 527 | 229 |
| 230 | |
|
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f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
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231 if (conf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED) { |
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f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
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232 conf->auth_capability = ngx_mail_pop3_auth_cram_md5_capability; |
| 809 | 233 |
| 234 } else { | |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
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235 conf->auth_capability = ngx_mail_pop3_auth_plain_capability; |
| 809 | 236 } |
| 237 | |
| 238 | |
| 2049 | 239 p = ngx_pnalloc(cf->pool, stls_only_size); |
| 1136 | 240 if (p == NULL) { |
| 241 return NGX_CONF_ERROR; | |
| 242 } | |
| 243 | |
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f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
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244 conf->starttls_only_capability.len = stls_only_size; |
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f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
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245 conf->starttls_only_capability.data = p; |
| 1136 | 246 |
| 247 p = ngx_cpymem(p, "+OK Capability list follows" CRLF, | |
| 248 sizeof("+OK Capability list follows" CRLF) - 1); | |
| 249 | |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
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250 for (i = 0; i < conf->capabilities.nelts; i++) { |
| 1136 | 251 if (ngx_strcasecmp(c[i].data, (u_char *) "USER") == 0) { |
| 252 continue; | |
| 253 } | |
| 254 | |
| 255 p = ngx_cpymem(p, c[i].data, c[i].len); | |
| 256 *p++ = CR; *p++ = LF; | |
| 257 } | |
| 258 | |
| 259 p = ngx_cpymem(p, "STLS" CRLF, sizeof("STLS" CRLF) - 1); | |
| 260 *p++ = '.'; *p++ = CR; *p = LF; | |
| 261 | |
| 521 | 262 return NGX_CONF_OK; |
| 263 } |