Mercurial > hg > nginx
annotate src/mail/ngx_mail_pop3_module.c @ 8708:98bacfc65c61 quic
QUIC: set idle timer when sending an ack-eliciting packet.
As per quic-transport-34:
An endpoint also restarts its idle timer when sending an ack-eliciting
packet if no other ack-eliciting packets have been sent since last receiving
and processing a packet.
Previously, the timer was set for any packet.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Thu, 18 Feb 2021 12:22:28 +0300 |
parents | 03735fef08da |
children | dc955d274130 |
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_pop3_module.h> |
521 | 13 |
14 | |
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15 static void *ngx_mail_pop3_create_srv_conf(ngx_conf_t *cf); |
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16 static char *ngx_mail_pop3_merge_srv_conf(ngx_conf_t *cf, void *parent, |
521 | 17 void *child); |
18 | |
19 | |
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20 static ngx_str_t ngx_mail_pop3_default_capabilities[] = { |
527 | 21 ngx_string("TOP"), |
22 ngx_string("USER"), | |
23 ngx_string("UIDL"), | |
24 ngx_null_string | |
25 }; | |
26 | |
27 | |
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28 static ngx_conf_bitmask_t ngx_mail_pop3_auth_methods[] = { |
1136 | 29 { ngx_string("plain"), NGX_MAIL_AUTH_PLAIN_ENABLED }, |
30 { ngx_string("apop"), NGX_MAIL_AUTH_APOP_ENABLED }, | |
31 { ngx_string("cram-md5"), NGX_MAIL_AUTH_CRAM_MD5_ENABLED }, | |
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32 { ngx_string("external"), NGX_MAIL_AUTH_EXTERNAL_ENABLED }, |
800 | 33 { ngx_null_string, 0 } |
34 }; | |
35 | |
36 | |
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37 static ngx_str_t ngx_mail_pop3_auth_methods_names[] = { |
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38 ngx_string("PLAIN"), |
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39 ngx_string("LOGIN"), |
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40 ngx_null_string, /* APOP */ |
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41 ngx_string("CRAM-MD5"), |
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42 ngx_string("EXTERNAL"), |
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43 ngx_null_string /* NONE */ |
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44 }; |
809 | 45 |
46 | |
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47 static ngx_mail_protocol_t ngx_mail_pop3_protocol = { |
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48 ngx_string("pop3"), |
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49 { 110, 995, 0, 0 }, |
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50 NGX_MAIL_POP3_PROTOCOL, |
521 | 51 |
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52 ngx_mail_pop3_init_session, |
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53 ngx_mail_pop3_init_protocol, |
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54 ngx_mail_pop3_parse_command, |
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55 ngx_mail_pop3_auth_state, |
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56 |
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57 ngx_string("-ERR internal server error" CRLF), |
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58 ngx_string("-ERR SSL certificate error" CRLF), |
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59 ngx_string("-ERR No required SSL certificate" CRLF) |
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60 }; |
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61 |
587 | 62 |
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63 static ngx_command_t ngx_mail_pop3_commands[] = { |
521 | 64 |
527 | 65 { ngx_string("pop3_capabilities"), |
1136 | 66 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, |
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67 ngx_mail_capabilities, |
1136 | 68 NGX_MAIL_SRV_CONF_OFFSET, |
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69 offsetof(ngx_mail_pop3_srv_conf_t, capabilities), |
527 | 70 NULL }, |
71 | |
1136 | 72 { ngx_string("pop3_auth"), |
73 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, | |
800 | 74 ngx_conf_set_bitmask_slot, |
1136 | 75 NGX_MAIL_SRV_CONF_OFFSET, |
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76 offsetof(ngx_mail_pop3_srv_conf_t, auth_methods), |
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77 &ngx_mail_pop3_auth_methods }, |
800 | 78 |
521 | 79 ngx_null_command |
80 }; | |
81 | |
82 | |
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83 static ngx_mail_module_t ngx_mail_pop3_module_ctx = { |
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84 &ngx_mail_pop3_protocol, /* protocol */ |
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85 |
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86 NULL, /* create main configuration */ |
521 | 87 NULL, /* init main configuration */ |
88 | |
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89 ngx_mail_pop3_create_srv_conf, /* create server configuration */ |
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90 ngx_mail_pop3_merge_srv_conf /* merge server configuration */ |
521 | 91 }; |
92 | |
93 | |
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94 ngx_module_t ngx_mail_pop3_module = { |
521 | 95 NGX_MODULE_V1, |
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96 &ngx_mail_pop3_module_ctx, /* module context */ |
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97 ngx_mail_pop3_commands, /* module directives */ |
1136 | 98 NGX_MAIL_MODULE, /* module type */ |
541 | 99 NULL, /* init master */ |
521 | 100 NULL, /* init module */ |
541 | 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 | |
521 | 107 }; |
108 | |
109 | |
110 static void * | |
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111 ngx_mail_pop3_create_srv_conf(ngx_conf_t *cf) |
577 | 112 { |
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113 ngx_mail_pop3_srv_conf_t *pscf; |
641 | 114 |
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115 pscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_pop3_srv_conf_t)); |
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116 if (pscf == NULL) { |
527 | 117 return NULL; |
521 | 118 } |
119 | |
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120 if (ngx_array_init(&pscf->capabilities, cf->pool, 4, sizeof(ngx_str_t)) |
1136 | 121 != NGX_OK) |
122 { | |
123 return NULL; | |
124 } | |
125 | |
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126 return pscf; |
521 | 127 } |
128 | |
129 | |
130 static char * | |
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131 ngx_mail_pop3_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) |
521 | 132 { |
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133 ngx_mail_pop3_srv_conf_t *prev = parent; |
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134 ngx_mail_pop3_srv_conf_t *conf = child; |
521 | 135 |
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136 u_char *p; |
1136 | 137 size_t size, stls_only_size; |
527 | 138 ngx_str_t *c, *d; |
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139 ngx_uint_t i, m; |
1136 | 140 |
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141 ngx_conf_merge_bitmask_value(conf->auth_methods, |
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142 prev->auth_methods, |
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143 (NGX_CONF_BITMASK_SET |
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144 |NGX_MAIL_AUTH_PLAIN_ENABLED)); |
800 | 145 |
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146 if (conf->auth_methods & NGX_MAIL_AUTH_PLAIN_ENABLED) { |
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147 conf->auth_methods |= NGX_MAIL_AUTH_LOGIN_ENABLED; |
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148 } |
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149 |
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150 if (conf->capabilities.nelts == 0) { |
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151 conf->capabilities = prev->capabilities; |
800 | 152 } |
153 | |
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154 if (conf->capabilities.nelts == 0) { |
527 | 155 |
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156 for (d = ngx_mail_pop3_default_capabilities; d->len; d++) { |
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157 c = ngx_array_push(&conf->capabilities); |
527 | 158 if (c == NULL) { |
159 return NGX_CONF_ERROR; | |
160 } | |
161 | |
162 *c = *d; | |
163 } | |
164 } | |
165 | |
166 size = sizeof("+OK Capability list follows" CRLF) - 1 | |
167 + sizeof("." CRLF) - 1; | |
168 | |
1136 | 169 stls_only_size = size + sizeof("STLS" CRLF) - 1; |
170 | |
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171 c = conf->capabilities.elts; |
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172 for (i = 0; i < conf->capabilities.nelts; i++) { |
527 | 173 size += c[i].len + sizeof(CRLF) - 1; |
1136 | 174 |
175 if (ngx_strcasecmp(c[i].data, (u_char *) "USER") == 0) { | |
176 continue; | |
177 } | |
178 | |
179 stls_only_size += c[i].len + sizeof(CRLF) - 1; | |
527 | 180 } |
181 | |
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182 size += sizeof("SASL") - 1 + sizeof(CRLF) - 1; |
809 | 183 |
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184 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; |
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185 m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; |
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186 m <<= 1, i++) |
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187 { |
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188 if (ngx_mail_pop3_auth_methods_names[i].len == 0) { |
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189 continue; |
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190 } |
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191 |
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192 if (m & conf->auth_methods) { |
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193 size += 1 + ngx_mail_pop3_auth_methods_names[i].len; |
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194 } |
809 | 195 } |
196 | |
2049 | 197 p = ngx_pnalloc(cf->pool, size); |
583 | 198 if (p == NULL) { |
527 | 199 return NGX_CONF_ERROR; |
200 } | |
201 | |
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202 conf->capability.len = size; |
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203 conf->capability.data = p; |
583 | 204 |
205 p = ngx_cpymem(p, "+OK Capability list follows" CRLF, | |
206 sizeof("+OK Capability list follows" CRLF) - 1); | |
527 | 207 |
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208 for (i = 0; i < conf->capabilities.nelts; i++) { |
583 | 209 p = ngx_cpymem(p, c[i].data, c[i].len); |
210 *p++ = CR; *p++ = LF; | |
527 | 211 } |
212 | |
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213 p = ngx_cpymem(p, "SASL", sizeof("SASL") - 1); |
809 | 214 |
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215 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; |
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216 m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; |
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217 m <<= 1, i++) |
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218 { |
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219 if (ngx_mail_pop3_auth_methods_names[i].len == 0) { |
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220 continue; |
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221 } |
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222 |
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223 if (m & conf->auth_methods) { |
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224 *p++ = ' '; |
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225 p = ngx_cpymem(p, ngx_mail_pop3_auth_methods_names[i].data, |
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226 ngx_mail_pop3_auth_methods_names[i].len); |
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227 } |
809 | 228 } |
229 | |
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230 *p++ = CR; *p++ = LF; |
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231 |
583 | 232 *p++ = '.'; *p++ = CR; *p = LF; |
233 | |
234 | |
235 size += sizeof("STLS" CRLF) - 1; | |
527 | 236 |
2049 | 237 p = ngx_pnalloc(cf->pool, size); |
583 | 238 if (p == NULL) { |
239 return NGX_CONF_ERROR; | |
240 } | |
241 | |
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242 conf->starttls_capability.len = size; |
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243 conf->starttls_capability.data = p; |
583 | 244 |
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245 p = ngx_cpymem(p, conf->capability.data, |
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246 conf->capability.len - (sizeof("." CRLF) - 1)); |
583 | 247 |
248 p = ngx_cpymem(p, "STLS" CRLF, sizeof("STLS" CRLF) - 1); | |
249 *p++ = '.'; *p++ = CR; *p = LF; | |
527 | 250 |
251 | |
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252 size = sizeof("+OK methods supported:" CRLF) - 1 |
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253 + sizeof("." CRLF) - 1; |
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254 |
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255 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; |
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256 m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; |
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257 m <<= 1, i++) |
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258 { |
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259 if (ngx_mail_pop3_auth_methods_names[i].len == 0) { |
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260 continue; |
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261 } |
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262 |
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263 if (m & conf->auth_methods) { |
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264 size += ngx_mail_pop3_auth_methods_names[i].len |
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265 + sizeof(CRLF) - 1; |
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266 } |
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267 } |
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268 |
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269 p = ngx_pnalloc(cf->pool, size); |
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270 if (p == NULL) { |
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271 return NGX_CONF_ERROR; |
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272 } |
809 | 273 |
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274 conf->auth_capability.data = p; |
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275 conf->auth_capability.len = size; |
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276 |
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277 p = ngx_cpymem(p, "+OK methods supported:" CRLF, |
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278 sizeof("+OK methods supported:" CRLF) - 1); |
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279 |
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280 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; |
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281 m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; |
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282 m <<= 1, i++) |
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283 { |
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284 if (ngx_mail_pop3_auth_methods_names[i].len == 0) { |
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285 continue; |
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286 } |
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287 |
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288 if (m & conf->auth_methods) { |
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289 p = ngx_cpymem(p, ngx_mail_pop3_auth_methods_names[i].data, |
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290 ngx_mail_pop3_auth_methods_names[i].len); |
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291 *p++ = CR; *p++ = LF; |
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292 } |
809 | 293 } |
294 | |
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295 *p++ = '.'; *p++ = CR; *p = LF; |
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296 |
809 | 297 |
2049 | 298 p = ngx_pnalloc(cf->pool, stls_only_size); |
1136 | 299 if (p == NULL) { |
300 return NGX_CONF_ERROR; | |
301 } | |
302 | |
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303 conf->starttls_only_capability.len = stls_only_size; |
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304 conf->starttls_only_capability.data = p; |
1136 | 305 |
306 p = ngx_cpymem(p, "+OK Capability list follows" CRLF, | |
307 sizeof("+OK Capability list follows" CRLF) - 1); | |
308 | |
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309 for (i = 0; i < conf->capabilities.nelts; i++) { |
1136 | 310 if (ngx_strcasecmp(c[i].data, (u_char *) "USER") == 0) { |
311 continue; | |
312 } | |
313 | |
314 p = ngx_cpymem(p, c[i].data, c[i].len); | |
315 *p++ = CR; *p++ = LF; | |
316 } | |
317 | |
318 p = ngx_cpymem(p, "STLS" CRLF, sizeof("STLS" CRLF) - 1); | |
319 *p++ = '.'; *p++ = CR; *p = LF; | |
320 | |
521 | 321 return NGX_CONF_OK; |
322 } |