Mercurial > hg > nginx
annotate src/mail/ngx_mail_smtp_module.c @ 6509:7640d6c213e1
Removed redundant "u" format specifier.
It is implied for "x" and "X".
author | Ruslan Ermilov <ru@nginx.com> |
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date | Fri, 08 Apr 2016 15:03:38 +0300 |
parents | ec01b1d1fff1 |
children | bcb107bb89cd |
rev | line source |
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521 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
521 | 5 */ |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
10 #include <ngx_event.h> | |
1136 | 11 #include <ngx_mail.h> |
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12 #include <ngx_mail_smtp_module.h> |
521 | 13 |
14 | |
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15 static void *ngx_mail_smtp_create_srv_conf(ngx_conf_t *cf); |
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16 static char *ngx_mail_smtp_merge_srv_conf(ngx_conf_t *cf, void *parent, |
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17 void *child); |
527 | 18 |
19 | |
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20 static ngx_conf_bitmask_t ngx_mail_smtp_auth_methods[] = { |
1323 | 21 { ngx_string("plain"), NGX_MAIL_AUTH_PLAIN_ENABLED }, |
22 { ngx_string("login"), NGX_MAIL_AUTH_LOGIN_ENABLED }, | |
23 { ngx_string("cram-md5"), NGX_MAIL_AUTH_CRAM_MD5_ENABLED }, | |
2309 | 24 { ngx_string("none"), NGX_MAIL_AUTH_NONE_ENABLED }, |
1323 | 25 { ngx_null_string, 0 } |
26 }; | |
27 | |
28 | |
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29 static ngx_str_t ngx_mail_smtp_auth_methods_names[] = { |
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30 ngx_string("PLAIN"), |
1136 | 31 ngx_string("LOGIN"), |
32 ngx_null_string, /* APOP */ | |
2309 | 33 ngx_string("CRAM-MD5"), |
34 ngx_null_string /* NONE */ | |
1136 | 35 }; |
36 | |
37 | |
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38 static ngx_mail_protocol_t ngx_mail_smtp_protocol = { |
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39 ngx_string("smtp"), |
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40 { 25, 465, 587, 0 }, |
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41 NGX_MAIL_SMTP_PROTOCOL, |
809 | 42 |
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43 ngx_mail_smtp_init_session, |
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44 ngx_mail_smtp_init_protocol, |
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45 ngx_mail_smtp_parse_command, |
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46 ngx_mail_smtp_auth_state, |
809 | 47 |
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48 ngx_string("451 4.3.2 Internal server error" CRLF), |
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49 ngx_string("421 4.7.1 SSL certificate error" CRLF), |
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50 ngx_string("421 4.7.1 No required SSL certificate" CRLF) |
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51 }; |
809 | 52 |
53 | |
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54 static ngx_command_t ngx_mail_smtp_commands[] = { |
521 | 55 |
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56 { ngx_string("smtp_client_buffer"), |
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57 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
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58 ngx_conf_set_size_slot, |
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59 NGX_MAIL_SRV_CONF_OFFSET, |
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60 offsetof(ngx_mail_smtp_srv_conf_t, client_buffer_size), |
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61 NULL }, |
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62 |
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63 { ngx_string("smtp_greeting_delay"), |
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64 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
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65 ngx_conf_set_msec_slot, |
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66 NGX_MAIL_SRV_CONF_OFFSET, |
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67 offsetof(ngx_mail_smtp_srv_conf_t, greeting_delay), |
1136 | 68 NULL }, |
69 | |
70 { ngx_string("smtp_capabilities"), | |
71 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, | |
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72 ngx_mail_capabilities, |
1136 | 73 NGX_MAIL_SRV_CONF_OFFSET, |
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74 offsetof(ngx_mail_smtp_srv_conf_t, capabilities), |
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75 NULL }, |
1323 | 76 |
1136 | 77 { ngx_string("smtp_auth"), |
78 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, | |
79 ngx_conf_set_bitmask_slot, | |
80 NGX_MAIL_SRV_CONF_OFFSET, | |
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81 offsetof(ngx_mail_smtp_srv_conf_t, auth_methods), |
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82 &ngx_mail_smtp_auth_methods }, |
800 | 83 |
521 | 84 ngx_null_command |
85 }; | |
86 | |
87 | |
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88 static ngx_mail_module_t ngx_mail_smtp_module_ctx = { |
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89 &ngx_mail_smtp_protocol, /* protocol */ |
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90 |
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91 NULL, /* create main configuration */ |
521 | 92 NULL, /* init main configuration */ |
93 | |
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94 ngx_mail_smtp_create_srv_conf, /* create server configuration */ |
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95 ngx_mail_smtp_merge_srv_conf /* merge server configuration */ |
521 | 96 }; |
97 | |
98 | |
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99 ngx_module_t ngx_mail_smtp_module = { |
521 | 100 NGX_MODULE_V1, |
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101 &ngx_mail_smtp_module_ctx, /* module context */ |
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102 ngx_mail_smtp_commands, /* module directives */ |
1136 | 103 NGX_MAIL_MODULE, /* module type */ |
541 | 104 NULL, /* init master */ |
521 | 105 NULL, /* init module */ |
541 | 106 NULL, /* init process */ |
107 NULL, /* init thread */ | |
108 NULL, /* exit thread */ | |
109 NULL, /* exit process */ | |
110 NULL, /* exit master */ | |
111 NGX_MODULE_V1_PADDING | |
521 | 112 }; |
113 | |
114 | |
115 static void * | |
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116 ngx_mail_smtp_create_srv_conf(ngx_conf_t *cf) |
577 | 117 { |
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118 ngx_mail_smtp_srv_conf_t *sscf; |
641 | 119 |
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120 sscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_smtp_srv_conf_t)); |
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121 if (sscf == NULL) { |
527 | 122 return NULL; |
521 | 123 } |
124 | |
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125 sscf->client_buffer_size = NGX_CONF_UNSET_SIZE; |
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126 sscf->greeting_delay = NGX_CONF_UNSET_MSEC; |
521 | 127 |
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128 if (ngx_array_init(&sscf->capabilities, cf->pool, 4, sizeof(ngx_str_t)) |
1136 | 129 != NGX_OK) |
130 { | |
131 return NULL; | |
132 } | |
133 | |
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134 return sscf; |
521 | 135 } |
136 | |
137 | |
138 static char * | |
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139 ngx_mail_smtp_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) |
521 | 140 { |
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141 ngx_mail_smtp_srv_conf_t *prev = parent; |
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142 ngx_mail_smtp_srv_conf_t *conf = child; |
521 | 143 |
2309 | 144 u_char *p, *auth, *last; |
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145 size_t size; |
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146 ngx_str_t *c; |
2309 | 147 ngx_uint_t i, m, auth_enabled; |
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148 ngx_mail_core_srv_conf_t *cscf; |
527 | 149 |
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150 ngx_conf_merge_size_value(conf->client_buffer_size, |
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151 prev->client_buffer_size, |
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152 (size_t) ngx_pagesize); |
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153 |
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154 ngx_conf_merge_msec_value(conf->greeting_delay, |
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155 prev->greeting_delay, 0); |
521 | 156 |
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157 ngx_conf_merge_bitmask_value(conf->auth_methods, |
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158 prev->auth_methods, |
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159 (NGX_CONF_BITMASK_SET |
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160 |NGX_MAIL_AUTH_PLAIN_ENABLED |
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161 |NGX_MAIL_AUTH_LOGIN_ENABLED)); |
800 | 162 |
163 | |
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164 cscf = ngx_mail_conf_get_module_srv_conf(cf, ngx_mail_core_module); |
527 | 165 |
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166 size = sizeof("220 ESMTP ready" CRLF) - 1 + cscf->server_name.len; |
809 | 167 |
2049 | 168 p = ngx_pnalloc(cf->pool, size); |
583 | 169 if (p == NULL) { |
527 | 170 return NGX_CONF_ERROR; |
171 } | |
172 | |
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173 conf->greeting.len = size; |
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174 conf->greeting.data = p; |
527 | 175 |
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176 *p++ = '2'; *p++ = '2'; *p++ = '0'; *p++ = ' '; |
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177 p = ngx_cpymem(p, cscf->server_name.data, cscf->server_name.len); |
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178 ngx_memcpy(p, " ESMTP ready" CRLF, sizeof(" ESMTP ready" CRLF) - 1); |
583 | 179 |
180 | |
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181 size = sizeof("250 " CRLF) - 1 + cscf->server_name.len; |
527 | 182 |
2049 | 183 p = ngx_pnalloc(cf->pool, size); |
583 | 184 if (p == NULL) { |
185 return NGX_CONF_ERROR; | |
186 } | |
187 | |
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188 conf->server_name.len = size; |
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189 conf->server_name.data = p; |
583 | 190 |
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191 *p++ = '2'; *p++ = '5'; *p++ = '0'; *p++ = ' '; |
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192 p = ngx_cpymem(p, cscf->server_name.data, cscf->server_name.len); |
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193 *p++ = CR; *p = LF; |
527 | 194 |
195 | |
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196 if (conf->capabilities.nelts == 0) { |
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197 conf->capabilities = prev->capabilities; |
1136 | 198 } |
199 | |
2309 | 200 size = sizeof("250-") - 1 + cscf->server_name.len + sizeof(CRLF) - 1; |
1136 | 201 |
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202 c = conf->capabilities.elts; |
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203 for (i = 0; i < conf->capabilities.nelts; i++) { |
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204 size += sizeof("250 ") - 1 + c[i].len + sizeof(CRLF) - 1; |
527 | 205 } |
206 | |
2309 | 207 auth_enabled = 0; |
208 | |
1323 | 209 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; |
210 m <= NGX_MAIL_AUTH_CRAM_MD5_ENABLED; | |
211 m <<= 1, i++) | |
212 { | |
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213 if (m & conf->auth_methods) { |
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214 size += 1 + ngx_mail_smtp_auth_methods_names[i].len; |
2309 | 215 auth_enabled = 1; |
1323 | 216 } |
217 } | |
218 | |
2309 | 219 if (auth_enabled) { |
220 size += sizeof("250 AUTH") - 1 + sizeof(CRLF) - 1; | |
221 } | |
222 | |
2049 | 223 p = ngx_pnalloc(cf->pool, size); |
583 | 224 if (p == NULL) { |
225 return NGX_CONF_ERROR; | |
226 } | |
227 | |
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228 conf->capability.len = size; |
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229 conf->capability.data = p; |
1136 | 230 |
2309 | 231 last = p; |
232 | |
1136 | 233 *p++ = '2'; *p++ = '5'; *p++ = '0'; *p++ = '-'; |
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234 p = ngx_cpymem(p, cscf->server_name.data, cscf->server_name.len); |
1136 | 235 *p++ = CR; *p++ = LF; |
236 | |
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237 for (i = 0; i < conf->capabilities.nelts; i++) { |
2309 | 238 last = p; |
1136 | 239 *p++ = '2'; *p++ = '5'; *p++ = '0'; *p++ = '-'; |
240 p = ngx_cpymem(p, c[i].data, c[i].len); | |
241 *p++ = CR; *p++ = LF; | |
242 } | |
243 | |
1322 | 244 auth = p; |
245 | |
2309 | 246 if (auth_enabled) { |
247 last = p; | |
248 | |
249 *p++ = '2'; *p++ = '5'; *p++ = '0'; *p++ = ' '; | |
250 *p++ = 'A'; *p++ = 'U'; *p++ = 'T'; *p++ = 'H'; | |
1136 | 251 |
2309 | 252 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; |
253 m <= NGX_MAIL_AUTH_CRAM_MD5_ENABLED; | |
254 m <<= 1, i++) | |
255 { | |
256 if (m & conf->auth_methods) { | |
257 *p++ = ' '; | |
258 p = ngx_cpymem(p, ngx_mail_smtp_auth_methods_names[i].data, | |
259 ngx_mail_smtp_auth_methods_names[i].len); | |
260 } | |
1136 | 261 } |
2309 | 262 |
263 *p++ = CR; *p = LF; | |
1136 | 264 |
2309 | 265 } else { |
266 last[3] = ' '; | |
267 } | |
1136 | 268 |
1322 | 269 size += sizeof("250 STARTTLS" CRLF) - 1; |
270 | |
2049 | 271 p = ngx_pnalloc(cf->pool, size); |
1322 | 272 if (p == NULL) { |
273 return NGX_CONF_ERROR; | |
274 } | |
275 | |
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276 conf->starttls_capability.len = size; |
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277 conf->starttls_capability.data = p; |
1322 | 278 |
2309 | 279 p = ngx_cpymem(p, conf->capability.data, conf->capability.len); |
1322 | 280 |
281 p = ngx_cpymem(p, "250 STARTTLS" CRLF, sizeof("250 STARTTLS" CRLF) - 1); | |
282 | |
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283 p = conf->starttls_capability.data |
2309 | 284 + (last - conf->capability.data) + 3; |
1322 | 285 *p = '-'; |
286 | |
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287 size = (auth - conf->capability.data) |
1322 | 288 + sizeof("250 STARTTLS" CRLF) - 1; |
289 | |
2049 | 290 p = ngx_pnalloc(cf->pool, size); |
1322 | 291 if (p == NULL) { |
292 return NGX_CONF_ERROR; | |
293 } | |
294 | |
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295 conf->starttls_only_capability.len = size; |
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296 conf->starttls_only_capability.data = p; |
1322 | 297 |
2309 | 298 p = ngx_cpymem(p, conf->capability.data, auth - conf->capability.data); |
1322 | 299 |
300 ngx_memcpy(p, "250 STARTTLS" CRLF, sizeof("250 STARTTLS" CRLF) - 1); | |
301 | |
2309 | 302 if (last < auth) { |
303 p = conf->starttls_only_capability.data | |
304 + (last - conf->capability.data) + 3; | |
305 *p = '-'; | |
306 } | |
307 | |
521 | 308 return NGX_CONF_OK; |
309 } |