Mercurial > hg > nginx-mail
comparison src/mail/ngx_mail_smtp_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 52b28d322d76 |
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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_smtp_module.h> | |
12 | |
13 | |
14 static void *ngx_mail_smtp_create_srv_conf(ngx_conf_t *cf); | |
15 static char *ngx_mail_smtp_merge_srv_conf(ngx_conf_t *cf, void *parent, | |
16 void *child); | |
17 | |
18 | |
19 static ngx_conf_bitmask_t ngx_mail_smtp_auth_methods[] = { | |
20 { ngx_string("plain"), NGX_MAIL_AUTH_PLAIN_ENABLED }, | |
21 { ngx_string("login"), NGX_MAIL_AUTH_LOGIN_ENABLED }, | |
22 { ngx_string("cram-md5"), NGX_MAIL_AUTH_CRAM_MD5_ENABLED }, | |
23 { ngx_null_string, 0 } | |
24 }; | |
25 | |
26 | |
27 static ngx_str_t ngx_mail_smtp_auth_methods_names[] = { | |
28 ngx_string("PLAIN"), | |
29 ngx_string("LOGIN"), | |
30 ngx_null_string, /* APOP */ | |
31 ngx_string("CRAM-MD5") | |
32 }; | |
33 | |
34 | |
35 static ngx_mail_protocol_t ngx_mail_smtp_protocol = { | |
36 ngx_string("smtp"), | |
37 { 25, 465, 587, 0 }, | |
38 NGX_MAIL_SMTP_PROTOCOL, | |
39 | |
40 ngx_mail_smtp_init_session, | |
41 ngx_mail_smtp_init_protocol, | |
42 ngx_mail_smtp_parse_command, | |
43 ngx_mail_smtp_auth_state, | |
44 | |
45 ngx_string("451 4.3.2 Internal server error" CRLF) | |
46 }; | |
47 | |
48 | |
49 static ngx_command_t ngx_mail_smtp_commands[] = { | |
50 | |
51 { ngx_string("smtp_client_buffer"), | |
52 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, | |
53 ngx_conf_set_size_slot, | |
54 NGX_MAIL_SRV_CONF_OFFSET, | |
55 offsetof(ngx_mail_smtp_srv_conf_t, client_buffer_size), | |
56 NULL }, | |
57 | |
58 { ngx_string("smtp_greeting_delay"), | |
59 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, | |
60 ngx_conf_set_msec_slot, | |
61 NGX_MAIL_SRV_CONF_OFFSET, | |
62 offsetof(ngx_mail_smtp_srv_conf_t, greeting_delay), | |
63 NULL }, | |
64 | |
65 { ngx_string("smtp_capabilities"), | |
66 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, | |
67 ngx_mail_capabilities, | |
68 NGX_MAIL_SRV_CONF_OFFSET, | |
69 offsetof(ngx_mail_smtp_srv_conf_t, capabilities), | |
70 NULL }, | |
71 | |
72 { ngx_string("smtp_auth"), | |
73 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, | |
74 ngx_conf_set_bitmask_slot, | |
75 NGX_MAIL_SRV_CONF_OFFSET, | |
76 offsetof(ngx_mail_smtp_srv_conf_t, auth_methods), | |
77 &ngx_mail_smtp_auth_methods }, | |
78 | |
79 ngx_null_command | |
80 }; | |
81 | |
82 | |
83 static ngx_mail_module_t ngx_mail_smtp_module_ctx = { | |
84 &ngx_mail_smtp_protocol, /* protocol */ | |
85 | |
86 NULL, /* create main configuration */ | |
87 NULL, /* init main configuration */ | |
88 | |
89 ngx_mail_smtp_create_srv_conf, /* create server configuration */ | |
90 ngx_mail_smtp_merge_srv_conf /* merge server configuration */ | |
91 }; | |
92 | |
93 | |
94 ngx_module_t ngx_mail_smtp_module = { | |
95 NGX_MODULE_V1, | |
96 &ngx_mail_smtp_module_ctx, /* module context */ | |
97 ngx_mail_smtp_commands, /* module directives */ | |
98 NGX_MAIL_MODULE, /* module type */ | |
99 NULL, /* init master */ | |
100 NULL, /* init module */ | |
101 NULL, /* init process */ | |
102 NULL, /* init thread */ | |
103 NULL, /* exit thread */ | |
104 NULL, /* exit process */ | |
105 NULL, /* exit master */ | |
106 NGX_MODULE_V1_PADDING | |
107 }; | |
108 | |
109 | |
110 static void * | |
111 ngx_mail_smtp_create_srv_conf(ngx_conf_t *cf) | |
112 { | |
113 ngx_mail_smtp_srv_conf_t *sscf; | |
114 | |
115 sscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_smtp_srv_conf_t)); | |
116 if (sscf == NULL) { | |
117 return NULL; | |
118 } | |
119 | |
120 sscf->client_buffer_size = NGX_CONF_UNSET_SIZE; | |
121 sscf->greeting_delay = NGX_CONF_UNSET_MSEC; | |
122 | |
123 if (ngx_array_init(&sscf->capabilities, cf->pool, 4, sizeof(ngx_str_t)) | |
124 != NGX_OK) | |
125 { | |
126 return NULL; | |
127 } | |
128 | |
129 return sscf; | |
130 } | |
131 | |
132 | |
133 static char * | |
134 ngx_mail_smtp_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) | |
135 { | |
136 ngx_mail_smtp_srv_conf_t *prev = parent; | |
137 ngx_mail_smtp_srv_conf_t *conf = child; | |
138 | |
139 u_char *p, *auth; | |
140 size_t size; | |
141 ngx_str_t *c; | |
142 ngx_uint_t i, m; | |
143 ngx_mail_core_srv_conf_t *cscf; | |
144 | |
145 ngx_conf_merge_size_value(conf->client_buffer_size, | |
146 prev->client_buffer_size, | |
147 (size_t) ngx_pagesize); | |
148 | |
149 ngx_conf_merge_msec_value(conf->greeting_delay, | |
150 prev->greeting_delay, 0); | |
151 | |
152 ngx_conf_merge_bitmask_value(conf->auth_methods, | |
153 prev->auth_methods, | |
154 (NGX_CONF_BITMASK_SET | |
155 |NGX_MAIL_AUTH_PLAIN_ENABLED | |
156 |NGX_MAIL_AUTH_LOGIN_ENABLED)); | |
157 | |
158 | |
159 cscf = ngx_mail_conf_get_module_srv_conf(cf, ngx_mail_core_module); | |
160 | |
161 size = sizeof("220 ESMTP ready" CRLF) - 1 + cscf->server_name.len; | |
162 | |
163 p = ngx_palloc(cf->pool, size); | |
164 if (p == NULL) { | |
165 return NGX_CONF_ERROR; | |
166 } | |
167 | |
168 conf->greeting.len = size; | |
169 conf->greeting.data = p; | |
170 | |
171 *p++ = '2'; *p++ = '2'; *p++ = '0'; *p++ = ' '; | |
172 p = ngx_cpymem(p, cscf->server_name.data, cscf->server_name.len); | |
173 ngx_memcpy(p, " ESMTP ready" CRLF, sizeof(" ESMTP ready" CRLF) - 1); | |
174 | |
175 | |
176 size = sizeof("250 " CRLF) - 1 + cscf->server_name.len; | |
177 | |
178 p = ngx_palloc(cf->pool, size); | |
179 if (p == NULL) { | |
180 return NGX_CONF_ERROR; | |
181 } | |
182 | |
183 conf->server_name.len = size; | |
184 conf->server_name.data = p; | |
185 | |
186 *p++ = '2'; *p++ = '5'; *p++ = '0'; *p++ = ' '; | |
187 p = ngx_cpymem(p, cscf->server_name.data, cscf->server_name.len); | |
188 *p++ = CR; *p = LF; | |
189 | |
190 | |
191 if (conf->capabilities.nelts == 0) { | |
192 conf->capabilities = prev->capabilities; | |
193 } | |
194 | |
195 size = sizeof("250-") - 1 + cscf->server_name.len + sizeof(CRLF) - 1 | |
196 + sizeof("250 AUTH") - 1 + sizeof(CRLF) - 1; | |
197 | |
198 c = conf->capabilities.elts; | |
199 for (i = 0; i < conf->capabilities.nelts; i++) { | |
200 size += sizeof("250 ") - 1 + c[i].len + sizeof(CRLF) - 1; | |
201 } | |
202 | |
203 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; | |
204 m <= NGX_MAIL_AUTH_CRAM_MD5_ENABLED; | |
205 m <<= 1, i++) | |
206 { | |
207 if (m & conf->auth_methods) { | |
208 size += 1 + ngx_mail_smtp_auth_methods_names[i].len; | |
209 } | |
210 } | |
211 | |
212 p = ngx_palloc(cf->pool, size); | |
213 if (p == NULL) { | |
214 return NGX_CONF_ERROR; | |
215 } | |
216 | |
217 conf->capability.len = size; | |
218 conf->capability.data = p; | |
219 | |
220 *p++ = '2'; *p++ = '5'; *p++ = '0'; *p++ = '-'; | |
221 p = ngx_cpymem(p, cscf->server_name.data, cscf->server_name.len); | |
222 *p++ = CR; *p++ = LF; | |
223 | |
224 for (i = 0; i < conf->capabilities.nelts; i++) { | |
225 *p++ = '2'; *p++ = '5'; *p++ = '0'; *p++ = '-'; | |
226 p = ngx_cpymem(p, c[i].data, c[i].len); | |
227 *p++ = CR; *p++ = LF; | |
228 } | |
229 | |
230 auth = p; | |
231 | |
232 *p++ = '2'; *p++ = '5'; *p++ = '0'; *p++ = ' '; | |
233 *p++ = 'A'; *p++ = 'U'; *p++ = 'T'; *p++ = 'H'; | |
234 | |
235 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; | |
236 m <= NGX_MAIL_AUTH_CRAM_MD5_ENABLED; | |
237 m <<= 1, i++) | |
238 { | |
239 if (m & conf->auth_methods) { | |
240 *p++ = ' '; | |
241 p = ngx_cpymem(p, ngx_mail_smtp_auth_methods_names[i].data, | |
242 ngx_mail_smtp_auth_methods_names[i].len); | |
243 } | |
244 } | |
245 | |
246 *p++ = CR; *p = LF; | |
247 | |
248 size += sizeof("250 STARTTLS" CRLF) - 1; | |
249 | |
250 p = ngx_palloc(cf->pool, size); | |
251 if (p == NULL) { | |
252 return NGX_CONF_ERROR; | |
253 } | |
254 | |
255 conf->starttls_capability.len = size; | |
256 conf->starttls_capability.data = p; | |
257 | |
258 p = ngx_cpymem(p, conf->capability.data, | |
259 conf->capability.len); | |
260 | |
261 p = ngx_cpymem(p, "250 STARTTLS" CRLF, sizeof("250 STARTTLS" CRLF) - 1); | |
262 *p++ = CR; *p = LF; | |
263 | |
264 p = conf->starttls_capability.data | |
265 + (auth - conf->capability.data) + 3; | |
266 *p = '-'; | |
267 | |
268 size = (auth - conf->capability.data) | |
269 + sizeof("250 STARTTLS" CRLF) - 1; | |
270 | |
271 p = ngx_palloc(cf->pool, size); | |
272 if (p == NULL) { | |
273 return NGX_CONF_ERROR; | |
274 } | |
275 | |
276 conf->starttls_only_capability.len = size; | |
277 conf->starttls_only_capability.data = p; | |
278 | |
279 p = ngx_cpymem(p, conf->capability.data, | |
280 auth - conf->capability.data); | |
281 | |
282 ngx_memcpy(p, "250 STARTTLS" CRLF, sizeof("250 STARTTLS" CRLF) - 1); | |
283 | |
284 return NGX_CONF_OK; | |
285 } |