Mercurial > hg > nginx
annotate src/mail/ngx_mail_imap_module.c @ 7682:2ab0ecfe5a5f
release-1.19.1 tag
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Tue, 07 Jul 2020 18:56:06 +0300 |
| parents | bcb107bb89cd |
| children | dc955d274130 |
| 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_imap_module.h> |
| 521 | 13 |
| 14 | |
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15 static void *ngx_mail_imap_create_srv_conf(ngx_conf_t *cf); |
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16 static char *ngx_mail_imap_merge_srv_conf(ngx_conf_t *cf, void *parent, |
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17 void *child); |
| 521 | 18 |
| 19 | |
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20 static ngx_str_t ngx_mail_imap_default_capabilities[] = { |
| 527 | 21 ngx_string("IMAP4"), |
| 22 ngx_string("IMAP4rev1"), | |
| 23 ngx_string("UIDPLUS"), | |
| 24 ngx_null_string | |
| 25 }; | |
| 26 | |
| 27 | |
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28 static ngx_conf_bitmask_t ngx_mail_imap_auth_methods[] = { |
| 1323 | 29 { ngx_string("plain"), NGX_MAIL_AUTH_PLAIN_ENABLED }, |
| 30 { ngx_string("login"), NGX_MAIL_AUTH_LOGIN_ENABLED }, | |
| 31 { ngx_string("cram-md5"), NGX_MAIL_AUTH_CRAM_MD5_ENABLED }, | |
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32 { ngx_string("external"), NGX_MAIL_AUTH_EXTERNAL_ENABLED }, |
| 1323 | 33 { ngx_null_string, 0 } |
| 34 }; | |
| 35 | |
| 36 | |
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37 static ngx_str_t ngx_mail_imap_auth_methods_names[] = { |
| 1323 | 38 ngx_string("AUTH=PLAIN"), |
| 39 ngx_string("AUTH=LOGIN"), | |
| 40 ngx_null_string, /* APOP */ | |
| 2309 | 41 ngx_string("AUTH=CRAM-MD5"), |
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42 ngx_string("AUTH=EXTERNAL"), |
| 2309 | 43 ngx_null_string /* NONE */ |
| 1323 | 44 }; |
| 45 | |
| 46 | |
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47 static ngx_mail_protocol_t ngx_mail_imap_protocol = { |
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48 ngx_string("imap"), |
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49 { 143, 993, 0, 0 }, |
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50 NGX_MAIL_IMAP_PROTOCOL, |
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51 |
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52 ngx_mail_imap_init_session, |
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53 ngx_mail_imap_init_protocol, |
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54 ngx_mail_imap_parse_command, |
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55 ngx_mail_imap_auth_state, |
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56 |
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57 ngx_string("* BAD internal server error" CRLF), |
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58 ngx_string("* BYE SSL certificate error" CRLF), |
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59 ngx_string("* BYE No required SSL certificate" CRLF) |
| 1136 | 60 }; |
| 61 | |
| 62 | |
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63 static ngx_command_t ngx_mail_imap_commands[] = { |
| 521 | 64 |
| 65 { ngx_string("imap_client_buffer"), | |
| 1136 | 66 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
| 521 | 67 ngx_conf_set_size_slot, |
| 1136 | 68 NGX_MAIL_SRV_CONF_OFFSET, |
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69 offsetof(ngx_mail_imap_srv_conf_t, client_buffer_size), |
| 527 | 70 NULL }, |
| 71 | |
| 72 { ngx_string("imap_capabilities"), | |
| 1136 | 73 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, |
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74 ngx_mail_capabilities, |
| 1136 | 75 NGX_MAIL_SRV_CONF_OFFSET, |
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76 offsetof(ngx_mail_imap_srv_conf_t, capabilities), |
| 800 | 77 NULL }, |
| 78 | |
| 1323 | 79 { ngx_string("imap_auth"), |
| 80 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, | |
| 81 ngx_conf_set_bitmask_slot, | |
| 82 NGX_MAIL_SRV_CONF_OFFSET, | |
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83 offsetof(ngx_mail_imap_srv_conf_t, auth_methods), |
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84 &ngx_mail_imap_auth_methods }, |
| 800 | 85 |
| 521 | 86 ngx_null_command |
| 87 }; | |
| 88 | |
| 89 | |
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90 static ngx_mail_module_t ngx_mail_imap_module_ctx = { |
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91 &ngx_mail_imap_protocol, /* protocol */ |
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92 |
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93 NULL, /* create main configuration */ |
| 521 | 94 NULL, /* init main configuration */ |
| 95 | |
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96 ngx_mail_imap_create_srv_conf, /* create server configuration */ |
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97 ngx_mail_imap_merge_srv_conf /* merge server configuration */ |
| 521 | 98 }; |
| 99 | |
| 100 | |
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101 ngx_module_t ngx_mail_imap_module = { |
| 521 | 102 NGX_MODULE_V1, |
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103 &ngx_mail_imap_module_ctx, /* module context */ |
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104 ngx_mail_imap_commands, /* module directives */ |
| 1136 | 105 NGX_MAIL_MODULE, /* module type */ |
| 541 | 106 NULL, /* init master */ |
| 521 | 107 NULL, /* init module */ |
| 541 | 108 NULL, /* init process */ |
| 109 NULL, /* init thread */ | |
| 110 NULL, /* exit thread */ | |
| 111 NULL, /* exit process */ | |
| 112 NULL, /* exit master */ | |
| 113 NGX_MODULE_V1_PADDING | |
| 521 | 114 }; |
| 115 | |
| 116 | |
| 117 static void * | |
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118 ngx_mail_imap_create_srv_conf(ngx_conf_t *cf) |
| 577 | 119 { |
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120 ngx_mail_imap_srv_conf_t *iscf; |
| 641 | 121 |
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122 iscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_imap_srv_conf_t)); |
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123 if (iscf == NULL) { |
| 527 | 124 return NULL; |
| 521 | 125 } |
| 126 | |
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127 iscf->client_buffer_size = NGX_CONF_UNSET_SIZE; |
| 521 | 128 |
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129 if (ngx_array_init(&iscf->capabilities, cf->pool, 4, sizeof(ngx_str_t)) |
| 1136 | 130 != NGX_OK) |
| 131 { | |
| 132 return NULL; | |
| 133 } | |
| 134 | |
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135 return iscf; |
| 521 | 136 } |
| 137 | |
| 138 | |
| 139 static char * | |
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140 ngx_mail_imap_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) |
| 521 | 141 { |
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142 ngx_mail_imap_srv_conf_t *prev = parent; |
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143 ngx_mail_imap_srv_conf_t *conf = child; |
| 521 | 144 |
| 1322 | 145 u_char *p, *auth; |
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146 size_t size; |
| 527 | 147 ngx_str_t *c, *d; |
| 1136 | 148 ngx_uint_t i, m; |
| 527 | 149 |
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150 ngx_conf_merge_size_value(conf->client_buffer_size, |
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151 prev->client_buffer_size, |
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152 (size_t) ngx_pagesize); |
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153 |
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154 ngx_conf_merge_bitmask_value(conf->auth_methods, |
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155 prev->auth_methods, |
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156 (NGX_CONF_BITMASK_SET |
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157 |NGX_MAIL_AUTH_PLAIN_ENABLED)); |
| 1323 | 158 |
| 800 | 159 |
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160 if (conf->capabilities.nelts == 0) { |
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161 conf->capabilities = prev->capabilities; |
| 527 | 162 } |
| 163 | |
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164 if (conf->capabilities.nelts == 0) { |
| 527 | 165 |
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166 for (d = ngx_mail_imap_default_capabilities; d->len; d++) { |
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167 c = ngx_array_push(&conf->capabilities); |
| 527 | 168 if (c == NULL) { |
| 169 return NGX_CONF_ERROR; | |
| 170 } | |
| 171 | |
| 172 *c = *d; | |
| 173 } | |
| 174 } | |
| 175 | |
| 1136 | 176 size = sizeof("* CAPABILITY" CRLF) - 1; |
| 527 | 177 |
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178 c = conf->capabilities.elts; |
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179 for (i = 0; i < conf->capabilities.nelts; i++) { |
| 527 | 180 size += 1 + c[i].len; |
| 181 } | |
| 182 | |
| 1323 | 183 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; |
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184 m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; |
| 1323 | 185 m <<= 1, i++) |
| 186 { | |
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187 if (m & conf->auth_methods) { |
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188 size += 1 + ngx_mail_imap_auth_methods_names[i].len; |
| 1323 | 189 } |
| 190 } | |
| 191 | |
| 2049 | 192 p = ngx_pnalloc(cf->pool, size); |
| 583 | 193 if (p == NULL) { |
| 194 return NGX_CONF_ERROR; | |
| 195 } | |
| 196 | |
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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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197 conf->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
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198 conf->capability.data = p; |
| 583 | 199 |
| 200 p = ngx_cpymem(p, "* CAPABILITY", sizeof("* CAPABILITY") - 1); | |
| 201 | |
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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
|
202 for (i = 0; i < conf->capabilities.nelts; i++) { |
| 583 | 203 *p++ = ' '; |
| 204 p = ngx_cpymem(p, c[i].data, c[i].len); | |
| 205 } | |
| 206 | |
| 1323 | 207 auth = p; |
| 208 | |
| 209 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; | |
|
6774
bcb107bb89cd
Mail: support SASL EXTERNAL (RFC 4422).
Rob N ★ <robn@fastmail.com>
parents:
5989
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changeset
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210 m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; |
| 1323 | 211 m <<= 1, i++) |
| 212 { | |
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1487
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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213 if (m & conf->auth_methods) { |
| 1323 | 214 *p++ = ' '; |
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1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
215 p = ngx_cpymem(p, ngx_mail_imap_auth_methods_names[i].data, |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
216 ngx_mail_imap_auth_methods_names[i].len); |
| 1323 | 217 } |
| 218 } | |
| 219 | |
| 583 | 220 *p++ = CR; *p = LF; |
| 221 | |
| 222 | |
| 223 size += sizeof(" STARTTLS") - 1; | |
| 224 | |
| 2049 | 225 p = ngx_pnalloc(cf->pool, size); |
| 583 | 226 if (p == NULL) { |
| 527 | 227 return NGX_CONF_ERROR; |
| 228 } | |
| 229 | |
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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
|
230 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
|
231 conf->starttls_capability.data = p; |
| 527 | 232 |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
233 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
|
234 conf->capability.len - (sizeof(CRLF) - 1)); |
| 583 | 235 p = ngx_cpymem(p, " STARTTLS", sizeof(" STARTTLS") - 1); |
| 236 *p++ = CR; *p = LF; | |
| 237 | |
| 238 | |
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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
|
239 size = (auth - conf->capability.data) + sizeof(CRLF) - 1 |
| 1323 | 240 + sizeof(" STARTTLS LOGINDISABLED") - 1; |
| 583 | 241 |
| 2049 | 242 p = ngx_pnalloc(cf->pool, size); |
| 583 | 243 if (p == NULL) { |
| 244 return NGX_CONF_ERROR; | |
| 527 | 245 } |
| 246 | |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
247 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
|
248 conf->starttls_only_capability.data = p; |
| 527 | 249 |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
250 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
|
251 auth - conf->capability.data); |
| 1323 | 252 p = ngx_cpymem(p, " STARTTLS LOGINDISABLED", |
| 253 sizeof(" STARTTLS LOGINDISABLED") - 1); | |
| 583 | 254 *p++ = CR; *p = LF; |
| 255 | |
| 521 | 256 return NGX_CONF_OK; |
| 257 } |