Mercurial > hg > nginx-vendor-0-7
comparison src/mail/ngx_mail_pop3_module.c @ 336:1c519aff5c0c NGINX_0_6_12
nginx 0.6.12
*) Change: mail proxy was split on three modules: pop3, imap and smtp.
*) Feature: the --without-mail_pop3_module, --without-mail_imap_module,
and --without-mail_smtp_module configuration parameters.
*) Feature: the "smtp_greeting_delay" and "smtp_client_buffer"
directives of the ngx_mail_smtp_module.
*) Bugfix: the trailing wildcards did not work; bug appeared in 0.6.9.
*) Bugfix: nginx could not start on Solaris if the shared PCRE library
located in non-standard place was used.
*) Bugfix: the "proxy_hide_header" and "fastcgi_hide_header" directives
did not hide response header lines whose name was longer than 32
characters.
Thanks to Manlio Perillo.
author | Igor Sysoev <http://sysoev.ru> |
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date | Fri, 21 Sep 2007 00:00:00 +0400 |
parents | |
children | 984bb0b1399b |
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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> | |
10 #include <ngx_mail.h> | |
11 #include <ngx_mail_pop3_module.h> | |
12 | |
13 | |
14 static void *ngx_mail_pop3_create_srv_conf(ngx_conf_t *cf); | |
15 static char *ngx_mail_pop3_merge_srv_conf(ngx_conf_t *cf, void *parent, | |
16 void *child); | |
17 | |
18 | |
19 static ngx_str_t ngx_mail_pop3_default_capabilities[] = { | |
20 ngx_string("TOP"), | |
21 ngx_string("USER"), | |
22 ngx_string("UIDL"), | |
23 ngx_null_string | |
24 }; | |
25 | |
26 | |
27 static ngx_conf_bitmask_t ngx_mail_pop3_auth_methods[] = { | |
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 }, | |
31 { ngx_null_string, 0 } | |
32 }; | |
33 | |
34 | |
35 static ngx_str_t ngx_mail_pop3_auth_plain_capability = | |
36 ngx_string("+OK methods supported:" CRLF | |
37 "LOGIN" CRLF | |
38 "PLAIN" CRLF | |
39 "." CRLF); | |
40 | |
41 | |
42 static ngx_str_t ngx_mail_pop3_auth_cram_md5_capability = | |
43 ngx_string("+OK methods supported:" CRLF | |
44 "LOGIN" CRLF | |
45 "PLAIN" CRLF | |
46 "CRAM-MD5" CRLF | |
47 "." CRLF); | |
48 | |
49 | |
50 static ngx_mail_protocol_t ngx_mail_pop3_protocol = { | |
51 ngx_string("pop3"), | |
52 { 110, 995, 0, 0 }, | |
53 NGX_MAIL_POP3_PROTOCOL, | |
54 | |
55 ngx_mail_pop3_init_session, | |
56 ngx_mail_pop3_init_protocol, | |
57 ngx_mail_pop3_parse_command, | |
58 ngx_mail_pop3_auth_state, | |
59 | |
60 ngx_string("-ERR internal server error" CRLF) | |
61 }; | |
62 | |
63 | |
64 static ngx_command_t ngx_mail_pop3_commands[] = { | |
65 | |
66 { ngx_string("pop3_capabilities"), | |
67 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, | |
68 ngx_mail_capabilities, | |
69 NGX_MAIL_SRV_CONF_OFFSET, | |
70 offsetof(ngx_mail_pop3_srv_conf_t, capabilities), | |
71 NULL }, | |
72 | |
73 { ngx_string("pop3_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, | |
77 offsetof(ngx_mail_pop3_srv_conf_t, auth_methods), | |
78 &ngx_mail_pop3_auth_methods }, | |
79 | |
80 ngx_null_command | |
81 }; | |
82 | |
83 | |
84 static ngx_mail_module_t ngx_mail_pop3_module_ctx = { | |
85 &ngx_mail_pop3_protocol, /* protocol */ | |
86 | |
87 NULL, /* create main configuration */ | |
88 NULL, /* init main configuration */ | |
89 | |
90 ngx_mail_pop3_create_srv_conf, /* create server configuration */ | |
91 ngx_mail_pop3_merge_srv_conf /* merge server configuration */ | |
92 }; | |
93 | |
94 | |
95 ngx_module_t ngx_mail_pop3_module = { | |
96 NGX_MODULE_V1, | |
97 &ngx_mail_pop3_module_ctx, /* module context */ | |
98 ngx_mail_pop3_commands, /* module directives */ | |
99 NGX_MAIL_MODULE, /* module type */ | |
100 NULL, /* init master */ | |
101 NULL, /* init module */ | |
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 | |
108 }; | |
109 | |
110 | |
111 static void * | |
112 ngx_mail_pop3_create_srv_conf(ngx_conf_t *cf) | |
113 { | |
114 ngx_mail_pop3_srv_conf_t *pscf; | |
115 | |
116 pscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_pop3_srv_conf_t)); | |
117 if (pscf == NULL) { | |
118 return NULL; | |
119 } | |
120 | |
121 if (ngx_array_init(&pscf->capabilities, cf->pool, 4, sizeof(ngx_str_t)) | |
122 != NGX_OK) | |
123 { | |
124 return NULL; | |
125 } | |
126 | |
127 return pscf; | |
128 } | |
129 | |
130 | |
131 static char * | |
132 ngx_mail_pop3_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) | |
133 { | |
134 ngx_mail_pop3_srv_conf_t *prev = parent; | |
135 ngx_mail_pop3_srv_conf_t *conf = child; | |
136 | |
137 u_char *p; | |
138 size_t size, stls_only_size; | |
139 ngx_str_t *c, *d; | |
140 ngx_uint_t i; | |
141 | |
142 ngx_conf_merge_bitmask_value(conf->auth_methods, | |
143 prev->auth_methods, | |
144 (NGX_CONF_BITMASK_SET | |
145 |NGX_MAIL_AUTH_PLAIN_ENABLED)); | |
146 | |
147 if (conf->capabilities.nelts == 0) { | |
148 conf->capabilities = prev->capabilities; | |
149 } | |
150 | |
151 if (conf->capabilities.nelts == 0) { | |
152 | |
153 for (d = ngx_mail_pop3_default_capabilities; d->len; d++) { | |
154 c = ngx_array_push(&conf->capabilities); | |
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 | |
166 stls_only_size = size + sizeof("STLS" CRLF) - 1; | |
167 | |
168 c = conf->capabilities.elts; | |
169 for (i = 0; i < conf->capabilities.nelts; i++) { | |
170 size += c[i].len + sizeof(CRLF) - 1; | |
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; | |
177 } | |
178 | |
179 if (conf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED) { | |
180 size += sizeof("SASL LOGIN PLAIN CRAM-MD5" CRLF) - 1; | |
181 | |
182 } else { | |
183 size += sizeof("SASL LOGIN PLAIN" CRLF) - 1; | |
184 } | |
185 | |
186 p = ngx_palloc(cf->pool, size); | |
187 if (p == NULL) { | |
188 return NGX_CONF_ERROR; | |
189 } | |
190 | |
191 conf->capability.len = size; | |
192 conf->capability.data = p; | |
193 | |
194 p = ngx_cpymem(p, "+OK Capability list follows" CRLF, | |
195 sizeof("+OK Capability list follows" CRLF) - 1); | |
196 | |
197 for (i = 0; i < conf->capabilities.nelts; i++) { | |
198 p = ngx_cpymem(p, c[i].data, c[i].len); | |
199 *p++ = CR; *p++ = LF; | |
200 } | |
201 | |
202 if (conf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED) { | |
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 | |
211 *p++ = '.'; *p++ = CR; *p = LF; | |
212 | |
213 | |
214 size += sizeof("STLS" CRLF) - 1; | |
215 | |
216 p = ngx_palloc(cf->pool, size); | |
217 if (p == NULL) { | |
218 return NGX_CONF_ERROR; | |
219 } | |
220 | |
221 conf->starttls_capability.len = size; | |
222 conf->starttls_capability.data = p; | |
223 | |
224 p = ngx_cpymem(p, conf->capability.data, | |
225 conf->capability.len - (sizeof("." CRLF) - 1)); | |
226 | |
227 p = ngx_cpymem(p, "STLS" CRLF, sizeof("STLS" CRLF) - 1); | |
228 *p++ = '.'; *p++ = CR; *p = LF; | |
229 | |
230 | |
231 if (conf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED) { | |
232 conf->auth_capability = ngx_mail_pop3_auth_cram_md5_capability; | |
233 | |
234 } else { | |
235 conf->auth_capability = ngx_mail_pop3_auth_plain_capability; | |
236 } | |
237 | |
238 | |
239 p = ngx_palloc(cf->pool, stls_only_size); | |
240 if (p == NULL) { | |
241 return NGX_CONF_ERROR; | |
242 } | |
243 | |
244 conf->starttls_only_capability.len = stls_only_size; | |
245 conf->starttls_only_capability.data = p; | |
246 | |
247 p = ngx_cpymem(p, "+OK Capability list follows" CRLF, | |
248 sizeof("+OK Capability list follows" CRLF) - 1); | |
249 | |
250 for (i = 0; i < conf->capabilities.nelts; i++) { | |
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 | |
262 return NGX_CONF_OK; | |
263 } |