Mercurial > hg > nginx
annotate src/mail/ngx_mail_imap_module.c @ 2049:2a92804f4109
*) back out r2040
*) refactor ngx_palloc()
*) introduce ngx_pnalloc()
*) additional pool blocks have smaller header
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Tue, 17 Jun 2008 15:00:30 +0000 |
| parents | f69493e8faab |
| children | 8156bc03982a |
| 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_imap_module.h> |
| 521 | 12 |
| 13 | |
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14 static void *ngx_mail_imap_create_srv_conf(ngx_conf_t *cf); |
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15 static char *ngx_mail_imap_merge_srv_conf(ngx_conf_t *cf, void *parent, |
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16 void *child); |
| 521 | 17 |
| 18 | |
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19 static ngx_str_t ngx_mail_imap_default_capabilities[] = { |
| 527 | 20 ngx_string("IMAP4"), |
| 21 ngx_string("IMAP4rev1"), | |
| 22 ngx_string("UIDPLUS"), | |
| 23 ngx_null_string | |
| 24 }; | |
| 25 | |
| 26 | |
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27 static ngx_conf_bitmask_t ngx_mail_imap_auth_methods[] = { |
| 1323 | 28 { ngx_string("plain"), NGX_MAIL_AUTH_PLAIN_ENABLED }, |
| 29 { ngx_string("login"), NGX_MAIL_AUTH_LOGIN_ENABLED }, | |
| 30 { ngx_string("cram-md5"), NGX_MAIL_AUTH_CRAM_MD5_ENABLED }, | |
| 31 { ngx_null_string, 0 } | |
| 32 }; | |
| 33 | |
| 34 | |
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35 static ngx_str_t ngx_mail_imap_auth_methods_names[] = { |
| 1323 | 36 ngx_string("AUTH=PLAIN"), |
| 37 ngx_string("AUTH=LOGIN"), | |
| 38 ngx_null_string, /* APOP */ | |
| 39 ngx_string("AUTH=CRAM-MD5") | |
| 40 }; | |
| 41 | |
| 42 | |
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43 static ngx_mail_protocol_t ngx_mail_imap_protocol = { |
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44 ngx_string("imap"), |
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45 { 143, 993, 0, 0 }, |
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46 NGX_MAIL_IMAP_PROTOCOL, |
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47 |
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48 ngx_mail_imap_init_session, |
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49 ngx_mail_imap_init_protocol, |
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50 ngx_mail_imap_parse_command, |
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51 ngx_mail_imap_auth_state, |
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52 |
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53 ngx_string("* BAD internal server error" CRLF) |
| 1136 | 54 }; |
| 55 | |
| 56 | |
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57 static ngx_command_t ngx_mail_imap_commands[] = { |
| 521 | 58 |
| 59 { ngx_string("imap_client_buffer"), | |
| 1136 | 60 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
| 521 | 61 ngx_conf_set_size_slot, |
| 1136 | 62 NGX_MAIL_SRV_CONF_OFFSET, |
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63 offsetof(ngx_mail_imap_srv_conf_t, client_buffer_size), |
| 527 | 64 NULL }, |
| 65 | |
| 66 { ngx_string("imap_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_imap_srv_conf_t, capabilities), |
| 800 | 71 NULL }, |
| 72 | |
| 1323 | 73 { ngx_string("imap_auth"), |
| 74 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, | |
| 75 ngx_conf_set_bitmask_slot, | |
| 76 NGX_MAIL_SRV_CONF_OFFSET, | |
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77 offsetof(ngx_mail_imap_srv_conf_t, auth_methods), |
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78 &ngx_mail_imap_auth_methods }, |
| 800 | 79 |
| 521 | 80 ngx_null_command |
| 81 }; | |
| 82 | |
| 83 | |
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84 static ngx_mail_module_t ngx_mail_imap_module_ctx = { |
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85 &ngx_mail_imap_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_imap_create_srv_conf, /* create server configuration */ |
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91 ngx_mail_imap_merge_srv_conf /* merge server configuration */ |
| 521 | 92 }; |
| 93 | |
| 94 | |
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95 ngx_module_t ngx_mail_imap_module = { |
| 521 | 96 NGX_MODULE_V1, |
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97 &ngx_mail_imap_module_ctx, /* module context */ |
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98 ngx_mail_imap_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_imap_create_srv_conf(ngx_conf_t *cf) |
| 577 | 113 { |
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114 ngx_mail_imap_srv_conf_t *iscf; |
| 641 | 115 |
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116 iscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_imap_srv_conf_t)); |
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117 if (iscf == NULL) { |
| 527 | 118 return NULL; |
| 521 | 119 } |
| 120 | |
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121 iscf->client_buffer_size = NGX_CONF_UNSET_SIZE; |
| 521 | 122 |
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123 if (ngx_array_init(&iscf->capabilities, cf->pool, 4, sizeof(ngx_str_t)) |
| 1136 | 124 != NGX_OK) |
| 125 { | |
| 126 return NULL; | |
| 127 } | |
| 128 | |
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129 return iscf; |
| 521 | 130 } |
| 131 | |
| 132 | |
| 133 static char * | |
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134 ngx_mail_imap_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) |
| 521 | 135 { |
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136 ngx_mail_imap_srv_conf_t *prev = parent; |
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137 ngx_mail_imap_srv_conf_t *conf = child; |
| 521 | 138 |
| 1322 | 139 u_char *p, *auth; |
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140 size_t size; |
| 527 | 141 ngx_str_t *c, *d; |
| 1136 | 142 ngx_uint_t i, m; |
| 527 | 143 |
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144 ngx_conf_merge_size_value(conf->client_buffer_size, |
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145 prev->client_buffer_size, |
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146 (size_t) ngx_pagesize); |
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147 |
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148 ngx_conf_merge_bitmask_value(conf->auth_methods, |
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149 prev->auth_methods, |
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150 (NGX_CONF_BITMASK_SET |
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151 |NGX_MAIL_AUTH_PLAIN_ENABLED)); |
| 1323 | 152 |
| 800 | 153 |
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154 if (conf->capabilities.nelts == 0) { |
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155 conf->capabilities = prev->capabilities; |
| 527 | 156 } |
| 157 | |
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158 if (conf->capabilities.nelts == 0) { |
| 527 | 159 |
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160 for (d = ngx_mail_imap_default_capabilities; d->len; d++) { |
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161 c = ngx_array_push(&conf->capabilities); |
| 527 | 162 if (c == NULL) { |
| 163 return NGX_CONF_ERROR; | |
| 164 } | |
| 165 | |
| 166 *c = *d; | |
| 167 } | |
| 168 } | |
| 169 | |
| 1136 | 170 size = sizeof("* CAPABILITY" CRLF) - 1; |
| 527 | 171 |
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172 c = conf->capabilities.elts; |
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173 for (i = 0; i < conf->capabilities.nelts; i++) { |
| 527 | 174 size += 1 + c[i].len; |
| 175 } | |
| 176 | |
| 1323 | 177 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; |
| 178 m <= NGX_MAIL_AUTH_CRAM_MD5_ENABLED; | |
| 179 m <<= 1, i++) | |
| 180 { | |
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181 if (m & conf->auth_methods) { |
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182 size += 1 + ngx_mail_imap_auth_methods_names[i].len; |
| 1323 | 183 } |
| 184 } | |
| 185 | |
| 2049 | 186 p = ngx_pnalloc(cf->pool, size); |
| 583 | 187 if (p == NULL) { |
| 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, "* CAPABILITY", sizeof("* CAPABILITY") - 1); | |
| 195 | |
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196 for (i = 0; i < conf->capabilities.nelts; i++) { |
| 583 | 197 *p++ = ' '; |
| 198 p = ngx_cpymem(p, c[i].data, c[i].len); | |
| 199 } | |
| 200 | |
| 1323 | 201 auth = p; |
| 202 | |
| 203 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; | |
| 204 m <= NGX_MAIL_AUTH_CRAM_MD5_ENABLED; | |
| 205 m <<= 1, i++) | |
| 206 { | |
|
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207 if (m & conf->auth_methods) { |
| 1323 | 208 *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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209 p = ngx_cpymem(p, ngx_mail_imap_auth_methods_names[i].data, |
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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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changeset
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210 ngx_mail_imap_auth_methods_names[i].len); |
| 1323 | 211 } |
| 212 } | |
| 213 | |
| 583 | 214 *p++ = CR; *p = LF; |
| 215 | |
| 216 | |
| 217 size += sizeof(" STARTTLS") - 1; | |
| 218 | |
| 2049 | 219 p = ngx_pnalloc(cf->pool, size); |
| 583 | 220 if (p == NULL) { |
| 527 | 221 return NGX_CONF_ERROR; |
| 222 } | |
| 223 | |
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parents:
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224 conf->starttls_capability.len = size; |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
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parents:
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225 conf->starttls_capability.data = p; |
| 527 | 226 |
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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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changeset
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227 p = ngx_cpymem(p, conf->capability.data, |
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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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changeset
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228 conf->capability.len - (sizeof(CRLF) - 1)); |
| 583 | 229 p = ngx_cpymem(p, " STARTTLS", sizeof(" STARTTLS") - 1); |
| 230 *p++ = CR; *p = LF; | |
| 231 | |
| 232 | |
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parents:
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233 size = (auth - conf->capability.data) + sizeof(CRLF) - 1 |
| 1323 | 234 + sizeof(" STARTTLS LOGINDISABLED") - 1; |
| 583 | 235 |
| 2049 | 236 p = ngx_pnalloc(cf->pool, size); |
| 583 | 237 if (p == NULL) { |
| 238 return NGX_CONF_ERROR; | |
| 527 | 239 } |
| 240 | |
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Igor Sysoev <igor@sysoev.ru>
parents:
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241 conf->starttls_only_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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changeset
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242 conf->starttls_only_capability.data = p; |
| 527 | 243 |
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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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244 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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245 auth - conf->capability.data); |
| 1323 | 246 p = ngx_cpymem(p, " STARTTLS LOGINDISABLED", |
| 247 sizeof(" STARTTLS LOGINDISABLED") - 1); | |
| 583 | 248 *p++ = CR; *p = LF; |
| 249 | |
| 521 | 250 return NGX_CONF_OK; |
| 251 } |