Mercurial > hg > nginx-mail
comparison src/mail/ngx_mail_imap_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_imap_module.h> | |
12 | |
13 | |
14 static void *ngx_mail_imap_create_srv_conf(ngx_conf_t *cf); | |
15 static char *ngx_mail_imap_merge_srv_conf(ngx_conf_t *cf, void *parent, | |
16 void *child); | |
17 | |
18 | |
19 static ngx_str_t ngx_mail_imap_default_capabilities[] = { | |
20 ngx_string("IMAP4"), | |
21 ngx_string("IMAP4rev1"), | |
22 ngx_string("UIDPLUS"), | |
23 ngx_null_string | |
24 }; | |
25 | |
26 | |
27 static ngx_conf_bitmask_t ngx_mail_imap_auth_methods[] = { | |
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 | |
35 static ngx_str_t ngx_mail_imap_auth_methods_names[] = { | |
36 ngx_string("AUTH=PLAIN"), | |
37 ngx_string("AUTH=LOGIN"), | |
38 ngx_null_string, /* APOP */ | |
39 ngx_string("AUTH=CRAM-MD5") | |
40 }; | |
41 | |
42 | |
43 static ngx_mail_protocol_t ngx_mail_imap_protocol = { | |
44 ngx_string("imap"), | |
45 { 143, 993, 0, 0 }, | |
46 NGX_MAIL_IMAP_PROTOCOL, | |
47 | |
48 ngx_mail_imap_init_session, | |
49 ngx_mail_imap_init_protocol, | |
50 ngx_mail_imap_parse_command, | |
51 ngx_mail_imap_auth_state, | |
52 | |
53 ngx_string("* BAD internal server error" CRLF) | |
54 }; | |
55 | |
56 | |
57 static ngx_command_t ngx_mail_imap_commands[] = { | |
58 | |
59 { ngx_string("imap_client_buffer"), | |
60 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, | |
61 ngx_conf_set_size_slot, | |
62 NGX_MAIL_SRV_CONF_OFFSET, | |
63 offsetof(ngx_mail_imap_srv_conf_t, client_buffer_size), | |
64 NULL }, | |
65 | |
66 { ngx_string("imap_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_imap_srv_conf_t, capabilities), | |
71 NULL }, | |
72 | |
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, | |
77 offsetof(ngx_mail_imap_srv_conf_t, auth_methods), | |
78 &ngx_mail_imap_auth_methods }, | |
79 | |
80 ngx_null_command | |
81 }; | |
82 | |
83 | |
84 static ngx_mail_module_t ngx_mail_imap_module_ctx = { | |
85 &ngx_mail_imap_protocol, /* protocol */ | |
86 | |
87 NULL, /* create main configuration */ | |
88 NULL, /* init main configuration */ | |
89 | |
90 ngx_mail_imap_create_srv_conf, /* create server configuration */ | |
91 ngx_mail_imap_merge_srv_conf /* merge server configuration */ | |
92 }; | |
93 | |
94 | |
95 ngx_module_t ngx_mail_imap_module = { | |
96 NGX_MODULE_V1, | |
97 &ngx_mail_imap_module_ctx, /* module context */ | |
98 ngx_mail_imap_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_imap_create_srv_conf(ngx_conf_t *cf) | |
113 { | |
114 ngx_mail_imap_srv_conf_t *iscf; | |
115 | |
116 iscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_imap_srv_conf_t)); | |
117 if (iscf == NULL) { | |
118 return NULL; | |
119 } | |
120 | |
121 iscf->client_buffer_size = NGX_CONF_UNSET_SIZE; | |
122 | |
123 if (ngx_array_init(&iscf->capabilities, cf->pool, 4, sizeof(ngx_str_t)) | |
124 != NGX_OK) | |
125 { | |
126 return NULL; | |
127 } | |
128 | |
129 return iscf; | |
130 } | |
131 | |
132 | |
133 static char * | |
134 ngx_mail_imap_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) | |
135 { | |
136 ngx_mail_imap_srv_conf_t *prev = parent; | |
137 ngx_mail_imap_srv_conf_t *conf = child; | |
138 | |
139 u_char *p, *auth; | |
140 size_t size; | |
141 ngx_str_t *c, *d; | |
142 ngx_uint_t i, m; | |
143 | |
144 ngx_conf_merge_size_value(conf->client_buffer_size, | |
145 prev->client_buffer_size, | |
146 (size_t) ngx_pagesize); | |
147 | |
148 ngx_conf_merge_bitmask_value(conf->auth_methods, | |
149 prev->auth_methods, | |
150 (NGX_CONF_BITMASK_SET | |
151 |NGX_MAIL_AUTH_PLAIN_ENABLED)); | |
152 | |
153 | |
154 if (conf->capabilities.nelts == 0) { | |
155 conf->capabilities = prev->capabilities; | |
156 } | |
157 | |
158 if (conf->capabilities.nelts == 0) { | |
159 | |
160 for (d = ngx_mail_imap_default_capabilities; d->len; d++) { | |
161 c = ngx_array_push(&conf->capabilities); | |
162 if (c == NULL) { | |
163 return NGX_CONF_ERROR; | |
164 } | |
165 | |
166 *c = *d; | |
167 } | |
168 } | |
169 | |
170 size = sizeof("* CAPABILITY" CRLF) - 1; | |
171 | |
172 c = conf->capabilities.elts; | |
173 for (i = 0; i < conf->capabilities.nelts; i++) { | |
174 size += 1 + c[i].len; | |
175 } | |
176 | |
177 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; | |
178 m <= NGX_MAIL_AUTH_CRAM_MD5_ENABLED; | |
179 m <<= 1, i++) | |
180 { | |
181 if (m & conf->auth_methods) { | |
182 size += 1 + ngx_mail_imap_auth_methods_names[i].len; | |
183 } | |
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, "* CAPABILITY", sizeof("* CAPABILITY") - 1); | |
195 | |
196 for (i = 0; i < conf->capabilities.nelts; i++) { | |
197 *p++ = ' '; | |
198 p = ngx_cpymem(p, c[i].data, c[i].len); | |
199 } | |
200 | |
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 { | |
207 if (m & conf->auth_methods) { | |
208 *p++ = ' '; | |
209 p = ngx_cpymem(p, ngx_mail_imap_auth_methods_names[i].data, | |
210 ngx_mail_imap_auth_methods_names[i].len); | |
211 } | |
212 } | |
213 | |
214 *p++ = CR; *p = LF; | |
215 | |
216 | |
217 size += sizeof(" STARTTLS") - 1; | |
218 | |
219 p = ngx_palloc(cf->pool, size); | |
220 if (p == NULL) { | |
221 return NGX_CONF_ERROR; | |
222 } | |
223 | |
224 conf->starttls_capability.len = size; | |
225 conf->starttls_capability.data = p; | |
226 | |
227 p = ngx_cpymem(p, conf->capability.data, | |
228 conf->capability.len - (sizeof(CRLF) - 1)); | |
229 p = ngx_cpymem(p, " STARTTLS", sizeof(" STARTTLS") - 1); | |
230 *p++ = CR; *p = LF; | |
231 | |
232 | |
233 size = (auth - conf->capability.data) + sizeof(CRLF) - 1 | |
234 + sizeof(" STARTTLS LOGINDISABLED") - 1; | |
235 | |
236 p = ngx_palloc(cf->pool, size); | |
237 if (p == NULL) { | |
238 return NGX_CONF_ERROR; | |
239 } | |
240 | |
241 conf->starttls_only_capability.len = size; | |
242 conf->starttls_only_capability.data = p; | |
243 | |
244 p = ngx_cpymem(p, conf->capability.data, | |
245 auth - conf->capability.data); | |
246 p = ngx_cpymem(p, " STARTTLS LOGINDISABLED", | |
247 sizeof(" STARTTLS LOGINDISABLED") - 1); | |
248 *p++ = CR; *p = LF; | |
249 | |
250 return NGX_CONF_OK; | |
251 } |