Mercurial > hg > nginx
annotate src/mail/ngx_mail_pop3_module.c @ 2473:afba93b8bf06 stable-0.6
r2414 merge:
fix segfault
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Mon, 26 Jan 2009 15:17:50 +0000 |
parents | f69493e8faab |
children | 2a92804f4109 |
rev | line source |
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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 | |
583 | 186 p = ngx_palloc(cf->pool, size); |
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 |
583 | 216 p = ngx_palloc(cf->pool, size); |
217 if (p == NULL) { | |
218 return NGX_CONF_ERROR; | |
219 } | |
220 | |
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221 conf->starttls_capability.len = size; |
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222 conf->starttls_capability.data = p; |
583 | 223 |
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224 p = ngx_cpymem(p, conf->capability.data, |
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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 | |
1136 | 239 p = ngx_palloc(cf->pool, stls_only_size); |
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 } |