Mercurial > hg > nginx
annotate src/mail/ngx_mail_pop3_module.c @ 4412:d620f497c50f
Copyright updated.
| author | Maxim Konovalov <maxim@nginx.com> |
|---|---|
| date | Wed, 18 Jan 2012 15:07:43 +0000 |
| parents | 2a92804f4109 |
| children | ec01b1d1fff1 |
| rev | line source |
|---|---|
| 521 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4412 | 4 * Copyright (C) Nginx, Inc. |
| 521 | 5 */ |
| 6 | |
| 7 | |
| 8 #include <ngx_config.h> | |
| 9 #include <ngx_core.h> | |
| 10 #include <ngx_event.h> | |
| 1136 | 11 #include <ngx_mail.h> |
|
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12 #include <ngx_mail_pop3_module.h> |
| 521 | 13 |
| 14 | |
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15 static void *ngx_mail_pop3_create_srv_conf(ngx_conf_t *cf); |
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16 static char *ngx_mail_pop3_merge_srv_conf(ngx_conf_t *cf, void *parent, |
| 521 | 17 void *child); |
| 18 | |
| 19 | |
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20 static ngx_str_t ngx_mail_pop3_default_capabilities[] = { |
| 527 | 21 ngx_string("TOP"), |
| 22 ngx_string("USER"), | |
| 23 ngx_string("UIDL"), | |
| 24 ngx_null_string | |
| 25 }; | |
| 26 | |
| 27 | |
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28 static ngx_conf_bitmask_t ngx_mail_pop3_auth_methods[] = { |
| 1136 | 29 { ngx_string("plain"), NGX_MAIL_AUTH_PLAIN_ENABLED }, |
| 30 { ngx_string("apop"), NGX_MAIL_AUTH_APOP_ENABLED }, | |
| 31 { ngx_string("cram-md5"), NGX_MAIL_AUTH_CRAM_MD5_ENABLED }, | |
| 800 | 32 { ngx_null_string, 0 } |
| 33 }; | |
| 34 | |
| 35 | |
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36 static ngx_str_t ngx_mail_pop3_auth_plain_capability = |
| 809 | 37 ngx_string("+OK methods supported:" CRLF |
| 38 "LOGIN" CRLF | |
| 39 "PLAIN" CRLF | |
| 40 "." CRLF); | |
| 41 | |
| 42 | |
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43 static ngx_str_t ngx_mail_pop3_auth_cram_md5_capability = |
| 809 | 44 ngx_string("+OK methods supported:" CRLF |
| 45 "LOGIN" CRLF | |
| 46 "PLAIN" CRLF | |
| 47 "CRAM-MD5" CRLF | |
| 48 "." CRLF); | |
| 49 | |
| 50 | |
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51 static ngx_mail_protocol_t ngx_mail_pop3_protocol = { |
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52 ngx_string("pop3"), |
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53 { 110, 995, 0, 0 }, |
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54 NGX_MAIL_POP3_PROTOCOL, |
| 521 | 55 |
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56 ngx_mail_pop3_init_session, |
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57 ngx_mail_pop3_init_protocol, |
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58 ngx_mail_pop3_parse_command, |
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59 ngx_mail_pop3_auth_state, |
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60 |
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61 ngx_string("-ERR internal server error" CRLF) |
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62 }; |
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63 |
| 587 | 64 |
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65 static ngx_command_t ngx_mail_pop3_commands[] = { |
| 521 | 66 |
| 527 | 67 { ngx_string("pop3_capabilities"), |
| 1136 | 68 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, |
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69 ngx_mail_capabilities, |
| 1136 | 70 NGX_MAIL_SRV_CONF_OFFSET, |
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71 offsetof(ngx_mail_pop3_srv_conf_t, capabilities), |
| 527 | 72 NULL }, |
| 73 | |
| 1136 | 74 { ngx_string("pop3_auth"), |
| 75 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, | |
| 800 | 76 ngx_conf_set_bitmask_slot, |
| 1136 | 77 NGX_MAIL_SRV_CONF_OFFSET, |
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78 offsetof(ngx_mail_pop3_srv_conf_t, auth_methods), |
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79 &ngx_mail_pop3_auth_methods }, |
| 800 | 80 |
| 521 | 81 ngx_null_command |
| 82 }; | |
| 83 | |
| 84 | |
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85 static ngx_mail_module_t ngx_mail_pop3_module_ctx = { |
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86 &ngx_mail_pop3_protocol, /* protocol */ |
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87 |
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88 NULL, /* create main configuration */ |
| 521 | 89 NULL, /* init main configuration */ |
| 90 | |
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91 ngx_mail_pop3_create_srv_conf, /* create server configuration */ |
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92 ngx_mail_pop3_merge_srv_conf /* merge server configuration */ |
| 521 | 93 }; |
| 94 | |
| 95 | |
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96 ngx_module_t ngx_mail_pop3_module = { |
| 521 | 97 NGX_MODULE_V1, |
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98 &ngx_mail_pop3_module_ctx, /* module context */ |
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99 ngx_mail_pop3_commands, /* module directives */ |
| 1136 | 100 NGX_MAIL_MODULE, /* module type */ |
| 541 | 101 NULL, /* init master */ |
| 521 | 102 NULL, /* init module */ |
| 541 | 103 NULL, /* init process */ |
| 104 NULL, /* init thread */ | |
| 105 NULL, /* exit thread */ | |
| 106 NULL, /* exit process */ | |
| 107 NULL, /* exit master */ | |
| 108 NGX_MODULE_V1_PADDING | |
| 521 | 109 }; |
| 110 | |
| 111 | |
| 112 static void * | |
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113 ngx_mail_pop3_create_srv_conf(ngx_conf_t *cf) |
| 577 | 114 { |
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115 ngx_mail_pop3_srv_conf_t *pscf; |
| 641 | 116 |
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117 pscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_pop3_srv_conf_t)); |
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118 if (pscf == NULL) { |
| 527 | 119 return NULL; |
| 521 | 120 } |
| 121 | |
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122 if (ngx_array_init(&pscf->capabilities, cf->pool, 4, sizeof(ngx_str_t)) |
| 1136 | 123 != NGX_OK) |
| 124 { | |
| 125 return NULL; | |
| 126 } | |
| 127 | |
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128 return pscf; |
| 521 | 129 } |
| 130 | |
| 131 | |
| 132 static char * | |
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133 ngx_mail_pop3_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) |
| 521 | 134 { |
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135 ngx_mail_pop3_srv_conf_t *prev = parent; |
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136 ngx_mail_pop3_srv_conf_t *conf = child; |
| 521 | 137 |
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138 u_char *p; |
| 1136 | 139 size_t size, stls_only_size; |
| 527 | 140 ngx_str_t *c, *d; |
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141 ngx_uint_t i; |
| 1136 | 142 |
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143 ngx_conf_merge_bitmask_value(conf->auth_methods, |
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144 prev->auth_methods, |
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145 (NGX_CONF_BITMASK_SET |
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146 |NGX_MAIL_AUTH_PLAIN_ENABLED)); |
| 800 | 147 |
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148 if (conf->capabilities.nelts == 0) { |
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149 conf->capabilities = prev->capabilities; |
| 800 | 150 } |
| 151 | |
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152 if (conf->capabilities.nelts == 0) { |
| 527 | 153 |
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154 for (d = ngx_mail_pop3_default_capabilities; d->len; d++) { |
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155 c = ngx_array_push(&conf->capabilities); |
| 527 | 156 if (c == NULL) { |
| 157 return NGX_CONF_ERROR; | |
| 158 } | |
| 159 | |
| 160 *c = *d; | |
| 161 } | |
| 162 } | |
| 163 | |
| 164 size = sizeof("+OK Capability list follows" CRLF) - 1 | |
| 165 + sizeof("." CRLF) - 1; | |
| 166 | |
| 1136 | 167 stls_only_size = size + sizeof("STLS" CRLF) - 1; |
| 168 | |
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169 c = conf->capabilities.elts; |
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170 for (i = 0; i < conf->capabilities.nelts; i++) { |
| 527 | 171 size += c[i].len + sizeof(CRLF) - 1; |
| 1136 | 172 |
| 173 if (ngx_strcasecmp(c[i].data, (u_char *) "USER") == 0) { | |
| 174 continue; | |
| 175 } | |
| 176 | |
| 177 stls_only_size += c[i].len + sizeof(CRLF) - 1; | |
| 527 | 178 } |
| 179 | |
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180 if (conf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED) { |
| 809 | 181 size += sizeof("SASL LOGIN PLAIN CRAM-MD5" CRLF) - 1; |
| 182 | |
| 183 } else { | |
| 184 size += sizeof("SASL LOGIN PLAIN" CRLF) - 1; | |
| 185 } | |
| 186 | |
| 2049 | 187 p = ngx_pnalloc(cf->pool, size); |
| 583 | 188 if (p == NULL) { |
| 527 | 189 return NGX_CONF_ERROR; |
| 190 } | |
| 191 | |
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192 conf->capability.len = size; |
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193 conf->capability.data = p; |
| 583 | 194 |
| 195 p = ngx_cpymem(p, "+OK Capability list follows" CRLF, | |
| 196 sizeof("+OK Capability list follows" CRLF) - 1); | |
| 527 | 197 |
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198 for (i = 0; i < conf->capabilities.nelts; i++) { |
| 583 | 199 p = ngx_cpymem(p, c[i].data, c[i].len); |
| 200 *p++ = CR; *p++ = LF; | |
| 527 | 201 } |
| 202 | |
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203 if (conf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED) { |
| 809 | 204 p = ngx_cpymem(p, "SASL LOGIN PLAIN CRAM-MD5" CRLF, |
| 205 sizeof("SASL LOGIN PLAIN CRAM-MD5" CRLF) - 1); | |
| 206 | |
| 207 } else { | |
| 208 p = ngx_cpymem(p, "SASL LOGIN PLAIN" CRLF, | |
| 209 sizeof("SASL LOGIN PLAIN" CRLF) - 1); | |
| 210 } | |
| 211 | |
| 583 | 212 *p++ = '.'; *p++ = CR; *p = LF; |
| 213 | |
| 214 | |
| 215 size += sizeof("STLS" CRLF) - 1; | |
| 527 | 216 |
| 2049 | 217 p = ngx_pnalloc(cf->pool, size); |
| 583 | 218 if (p == NULL) { |
| 219 return NGX_CONF_ERROR; | |
| 220 } | |
| 221 | |
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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
|
222 conf->starttls_capability.len = size; |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
223 conf->starttls_capability.data = p; |
| 583 | 224 |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
225 p = ngx_cpymem(p, conf->capability.data, |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
226 conf->capability.len - (sizeof("." CRLF) - 1)); |
| 583 | 227 |
| 228 p = ngx_cpymem(p, "STLS" CRLF, sizeof("STLS" CRLF) - 1); | |
| 229 *p++ = '.'; *p++ = CR; *p = LF; | |
| 527 | 230 |
| 231 | |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
232 if (conf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED) { |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
233 conf->auth_capability = ngx_mail_pop3_auth_cram_md5_capability; |
| 809 | 234 |
| 235 } else { | |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
236 conf->auth_capability = ngx_mail_pop3_auth_plain_capability; |
| 809 | 237 } |
| 238 | |
| 239 | |
| 2049 | 240 p = ngx_pnalloc(cf->pool, stls_only_size); |
| 1136 | 241 if (p == NULL) { |
| 242 return NGX_CONF_ERROR; | |
| 243 } | |
| 244 | |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
245 conf->starttls_only_capability.len = stls_only_size; |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
246 conf->starttls_only_capability.data = p; |
| 1136 | 247 |
| 248 p = ngx_cpymem(p, "+OK Capability list follows" CRLF, | |
| 249 sizeof("+OK Capability list follows" CRLF) - 1); | |
| 250 | |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
251 for (i = 0; i < conf->capabilities.nelts; i++) { |
| 1136 | 252 if (ngx_strcasecmp(c[i].data, (u_char *) "USER") == 0) { |
| 253 continue; | |
| 254 } | |
| 255 | |
| 256 p = ngx_cpymem(p, c[i].data, c[i].len); | |
| 257 *p++ = CR; *p++ = LF; | |
| 258 } | |
| 259 | |
| 260 p = ngx_cpymem(p, "STLS" CRLF, sizeof("STLS" CRLF) - 1); | |
| 261 *p++ = '.'; *p++ = CR; *p = LF; | |
| 262 | |
| 521 | 263 return NGX_CONF_OK; |
| 264 } |