Mercurial > hg > nginx
annotate src/mail/ngx_mail_pop3_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 | 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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f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
221 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
|
222 conf->starttls_capability.data = p; |
| 583 | 223 |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
224 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
|
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 | |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
231 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
|
232 conf->auth_capability = ngx_mail_pop3_auth_cram_md5_capability; |
| 809 | 233 |
| 234 } 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
|
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 | |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1481
diff
changeset
|
244 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
|
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 | |
|
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 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 } |