Mercurial > hg > nginx
annotate src/mail/ngx_mail_smtp_module.c @ 4412:d620f497c50f
Copyright updated.
| author | Maxim Konovalov <maxim@nginx.com> |
|---|---|
| date | Wed, 18 Jan 2012 15:07:43 +0000 |
| parents | 8156bc03982a |
| children | baa705805138 |
| 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_smtp_module.h> |
| 521 | 13 |
| 14 | |
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15 static void *ngx_mail_smtp_create_srv_conf(ngx_conf_t *cf); |
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16 static char *ngx_mail_smtp_merge_srv_conf(ngx_conf_t *cf, void *parent, |
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17 void *child); |
| 527 | 18 |
| 19 | |
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20 static ngx_conf_bitmask_t ngx_mail_smtp_auth_methods[] = { |
| 1323 | 21 { ngx_string("plain"), NGX_MAIL_AUTH_PLAIN_ENABLED }, |
| 22 { ngx_string("login"), NGX_MAIL_AUTH_LOGIN_ENABLED }, | |
| 23 { ngx_string("cram-md5"), NGX_MAIL_AUTH_CRAM_MD5_ENABLED }, | |
| 2309 | 24 { ngx_string("none"), NGX_MAIL_AUTH_NONE_ENABLED }, |
| 1323 | 25 { ngx_null_string, 0 } |
| 26 }; | |
| 27 | |
| 28 | |
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29 static ngx_str_t ngx_mail_smtp_auth_methods_names[] = { |
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30 ngx_string("PLAIN"), |
| 1136 | 31 ngx_string("LOGIN"), |
| 32 ngx_null_string, /* APOP */ | |
| 2309 | 33 ngx_string("CRAM-MD5"), |
| 34 ngx_null_string /* NONE */ | |
| 1136 | 35 }; |
| 36 | |
| 37 | |
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38 static ngx_mail_protocol_t ngx_mail_smtp_protocol = { |
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39 ngx_string("smtp"), |
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40 { 25, 465, 587, 0 }, |
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41 NGX_MAIL_SMTP_PROTOCOL, |
| 809 | 42 |
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43 ngx_mail_smtp_init_session, |
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44 ngx_mail_smtp_init_protocol, |
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45 ngx_mail_smtp_parse_command, |
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46 ngx_mail_smtp_auth_state, |
| 809 | 47 |
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48 ngx_string("451 4.3.2 Internal server error" CRLF) |
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49 }; |
| 809 | 50 |
| 51 | |
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52 static ngx_command_t ngx_mail_smtp_commands[] = { |
| 521 | 53 |
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54 { ngx_string("smtp_client_buffer"), |
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55 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
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56 ngx_conf_set_size_slot, |
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57 NGX_MAIL_SRV_CONF_OFFSET, |
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58 offsetof(ngx_mail_smtp_srv_conf_t, client_buffer_size), |
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59 NULL }, |
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60 |
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61 { ngx_string("smtp_greeting_delay"), |
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62 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
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63 ngx_conf_set_msec_slot, |
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64 NGX_MAIL_SRV_CONF_OFFSET, |
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65 offsetof(ngx_mail_smtp_srv_conf_t, greeting_delay), |
| 1136 | 66 NULL }, |
| 67 | |
| 68 { ngx_string("smtp_capabilities"), | |
| 69 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, | |
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70 ngx_mail_capabilities, |
| 1136 | 71 NGX_MAIL_SRV_CONF_OFFSET, |
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72 offsetof(ngx_mail_smtp_srv_conf_t, capabilities), |
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73 NULL }, |
| 1323 | 74 |
| 1136 | 75 { ngx_string("smtp_auth"), |
| 76 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, | |
| 77 ngx_conf_set_bitmask_slot, | |
| 78 NGX_MAIL_SRV_CONF_OFFSET, | |
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79 offsetof(ngx_mail_smtp_srv_conf_t, auth_methods), |
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80 &ngx_mail_smtp_auth_methods }, |
| 800 | 81 |
| 521 | 82 ngx_null_command |
| 83 }; | |
| 84 | |
| 85 | |
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86 static ngx_mail_module_t ngx_mail_smtp_module_ctx = { |
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87 &ngx_mail_smtp_protocol, /* protocol */ |
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88 |
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89 NULL, /* create main configuration */ |
| 521 | 90 NULL, /* init main configuration */ |
| 91 | |
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92 ngx_mail_smtp_create_srv_conf, /* create server configuration */ |
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93 ngx_mail_smtp_merge_srv_conf /* merge server configuration */ |
| 521 | 94 }; |
| 95 | |
| 96 | |
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97 ngx_module_t ngx_mail_smtp_module = { |
| 521 | 98 NGX_MODULE_V1, |
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99 &ngx_mail_smtp_module_ctx, /* module context */ |
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100 ngx_mail_smtp_commands, /* module directives */ |
| 1136 | 101 NGX_MAIL_MODULE, /* module type */ |
| 541 | 102 NULL, /* init master */ |
| 521 | 103 NULL, /* init module */ |
| 541 | 104 NULL, /* init process */ |
| 105 NULL, /* init thread */ | |
| 106 NULL, /* exit thread */ | |
| 107 NULL, /* exit process */ | |
| 108 NULL, /* exit master */ | |
| 109 NGX_MODULE_V1_PADDING | |
| 521 | 110 }; |
| 111 | |
| 112 | |
| 113 static void * | |
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114 ngx_mail_smtp_create_srv_conf(ngx_conf_t *cf) |
| 577 | 115 { |
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116 ngx_mail_smtp_srv_conf_t *sscf; |
| 641 | 117 |
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118 sscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_smtp_srv_conf_t)); |
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119 if (sscf == NULL) { |
| 527 | 120 return NULL; |
| 521 | 121 } |
| 122 | |
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123 sscf->client_buffer_size = NGX_CONF_UNSET_SIZE; |
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124 sscf->greeting_delay = NGX_CONF_UNSET_MSEC; |
| 521 | 125 |
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126 if (ngx_array_init(&sscf->capabilities, cf->pool, 4, sizeof(ngx_str_t)) |
| 1136 | 127 != NGX_OK) |
| 128 { | |
| 129 return NULL; | |
| 130 } | |
| 131 | |
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132 return sscf; |
| 521 | 133 } |
| 134 | |
| 135 | |
| 136 static char * | |
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137 ngx_mail_smtp_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) |
| 521 | 138 { |
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139 ngx_mail_smtp_srv_conf_t *prev = parent; |
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140 ngx_mail_smtp_srv_conf_t *conf = child; |
| 521 | 141 |
| 2309 | 142 u_char *p, *auth, *last; |
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143 size_t size; |
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144 ngx_str_t *c; |
| 2309 | 145 ngx_uint_t i, m, auth_enabled; |
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146 ngx_mail_core_srv_conf_t *cscf; |
| 527 | 147 |
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148 ngx_conf_merge_size_value(conf->client_buffer_size, |
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149 prev->client_buffer_size, |
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150 (size_t) ngx_pagesize); |
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151 |
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152 ngx_conf_merge_msec_value(conf->greeting_delay, |
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153 prev->greeting_delay, 0); |
| 521 | 154 |
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155 ngx_conf_merge_bitmask_value(conf->auth_methods, |
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156 prev->auth_methods, |
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157 (NGX_CONF_BITMASK_SET |
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158 |NGX_MAIL_AUTH_PLAIN_ENABLED |
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159 |NGX_MAIL_AUTH_LOGIN_ENABLED)); |
| 800 | 160 |
| 161 | |
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162 cscf = ngx_mail_conf_get_module_srv_conf(cf, ngx_mail_core_module); |
| 527 | 163 |
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164 size = sizeof("220 ESMTP ready" CRLF) - 1 + cscf->server_name.len; |
| 809 | 165 |
| 2049 | 166 p = ngx_pnalloc(cf->pool, size); |
| 583 | 167 if (p == NULL) { |
| 527 | 168 return NGX_CONF_ERROR; |
| 169 } | |
| 170 | |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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171 conf->greeting.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:
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172 conf->greeting.data = p; |
| 527 | 173 |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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174 *p++ = '2'; *p++ = '2'; *p++ = '0'; *p++ = ' '; |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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175 p = ngx_cpymem(p, cscf->server_name.data, cscf->server_name.len); |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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176 ngx_memcpy(p, " ESMTP ready" CRLF, sizeof(" ESMTP ready" CRLF) - 1); |
| 583 | 177 |
| 178 | |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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179 size = sizeof("250 " CRLF) - 1 + cscf->server_name.len; |
| 527 | 180 |
| 2049 | 181 p = ngx_pnalloc(cf->pool, size); |
| 583 | 182 if (p == NULL) { |
| 183 return NGX_CONF_ERROR; | |
| 184 } | |
| 185 | |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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186 conf->server_name.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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187 conf->server_name.data = p; |
| 583 | 188 |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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189 *p++ = '2'; *p++ = '5'; *p++ = '0'; *p++ = ' '; |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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190 p = ngx_cpymem(p, cscf->server_name.data, cscf->server_name.len); |
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f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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191 *p++ = CR; *p = LF; |
| 527 | 192 |
| 193 | |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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194 if (conf->capabilities.nelts == 0) { |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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195 conf->capabilities = prev->capabilities; |
| 1136 | 196 } |
| 197 | |
| 2309 | 198 size = sizeof("250-") - 1 + cscf->server_name.len + sizeof(CRLF) - 1; |
| 1136 | 199 |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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200 c = conf->capabilities.elts; |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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201 for (i = 0; i < conf->capabilities.nelts; i++) { |
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f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
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202 size += sizeof("250 ") - 1 + c[i].len + sizeof(CRLF) - 1; |
| 527 | 203 } |
| 204 | |
| 2309 | 205 auth_enabled = 0; |
| 206 | |
| 1323 | 207 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; |
| 208 m <= NGX_MAIL_AUTH_CRAM_MD5_ENABLED; | |
| 209 m <<= 1, i++) | |
| 210 { | |
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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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211 if (m & conf->auth_methods) { |
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f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
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212 size += 1 + ngx_mail_smtp_auth_methods_names[i].len; |
| 2309 | 213 auth_enabled = 1; |
| 1323 | 214 } |
| 215 } | |
| 216 | |
| 2309 | 217 if (auth_enabled) { |
| 218 size += sizeof("250 AUTH") - 1 + sizeof(CRLF) - 1; | |
| 219 } | |
| 220 | |
| 2049 | 221 p = ngx_pnalloc(cf->pool, size); |
| 583 | 222 if (p == NULL) { |
| 223 return NGX_CONF_ERROR; | |
| 224 } | |
| 225 | |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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226 conf->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:
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diff
changeset
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227 conf->capability.data = p; |
| 1136 | 228 |
| 2309 | 229 last = p; |
| 230 | |
| 1136 | 231 *p++ = '2'; *p++ = '5'; *p++ = '0'; *p++ = '-'; |
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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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232 p = ngx_cpymem(p, cscf->server_name.data, cscf->server_name.len); |
| 1136 | 233 *p++ = CR; *p++ = LF; |
| 234 | |
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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 for (i = 0; i < conf->capabilities.nelts; i++) { |
| 2309 | 236 last = p; |
| 1136 | 237 *p++ = '2'; *p++ = '5'; *p++ = '0'; *p++ = '-'; |
| 238 p = ngx_cpymem(p, c[i].data, c[i].len); | |
| 239 *p++ = CR; *p++ = LF; | |
| 240 } | |
| 241 | |
| 1322 | 242 auth = p; |
| 243 | |
| 2309 | 244 if (auth_enabled) { |
| 245 last = p; | |
| 246 | |
| 247 *p++ = '2'; *p++ = '5'; *p++ = '0'; *p++ = ' '; | |
| 248 *p++ = 'A'; *p++ = 'U'; *p++ = 'T'; *p++ = 'H'; | |
| 1136 | 249 |
| 2309 | 250 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; |
| 251 m <= NGX_MAIL_AUTH_CRAM_MD5_ENABLED; | |
| 252 m <<= 1, i++) | |
| 253 { | |
| 254 if (m & conf->auth_methods) { | |
| 255 *p++ = ' '; | |
| 256 p = ngx_cpymem(p, ngx_mail_smtp_auth_methods_names[i].data, | |
| 257 ngx_mail_smtp_auth_methods_names[i].len); | |
| 258 } | |
| 1136 | 259 } |
| 2309 | 260 |
| 261 *p++ = CR; *p = LF; | |
| 1136 | 262 |
| 2309 | 263 } else { |
| 264 last[3] = ' '; | |
| 265 } | |
| 1136 | 266 |
| 1322 | 267 size += sizeof("250 STARTTLS" CRLF) - 1; |
| 268 | |
| 2049 | 269 p = ngx_pnalloc(cf->pool, size); |
| 1322 | 270 if (p == NULL) { |
| 271 return NGX_CONF_ERROR; | |
| 272 } | |
| 273 | |
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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
|
274 conf->starttls_capability.len = 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
|
275 conf->starttls_capability.data = p; |
| 1322 | 276 |
| 2309 | 277 p = ngx_cpymem(p, conf->capability.data, conf->capability.len); |
| 1322 | 278 |
| 279 p = ngx_cpymem(p, "250 STARTTLS" CRLF, sizeof("250 STARTTLS" CRLF) - 1); | |
| 280 *p++ = CR; *p = LF; | |
| 281 | |
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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
|
282 p = conf->starttls_capability.data |
| 2309 | 283 + (last - conf->capability.data) + 3; |
| 1322 | 284 *p = '-'; |
| 285 | |
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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
|
286 size = (auth - conf->capability.data) |
| 1322 | 287 + sizeof("250 STARTTLS" CRLF) - 1; |
| 288 | |
| 2049 | 289 p = ngx_pnalloc(cf->pool, size); |
| 1322 | 290 if (p == NULL) { |
| 291 return NGX_CONF_ERROR; | |
| 292 } | |
| 293 | |
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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
|
294 conf->starttls_only_capability.len = 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
|
295 conf->starttls_only_capability.data = p; |
| 1322 | 296 |
| 2309 | 297 p = ngx_cpymem(p, conf->capability.data, auth - conf->capability.data); |
| 1322 | 298 |
| 299 ngx_memcpy(p, "250 STARTTLS" CRLF, sizeof("250 STARTTLS" CRLF) - 1); | |
| 300 | |
| 2309 | 301 if (last < auth) { |
| 302 p = conf->starttls_only_capability.data | |
| 303 + (last - conf->capability.data) + 3; | |
| 304 *p = '-'; | |
| 305 } | |
| 306 | |
| 521 | 307 return NGX_CONF_OK; |
| 308 } |