Mercurial > hg > nginx-quic
annotate src/mail/ngx_mail_smtp_handler.c @ 1672:bc93d5ab3e27
fix comment
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 30 Nov 2007 22:06:48 +0000 |
parents | 3c4111e07b58 |
children | e584e946e198 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
1136 | 10 #include <ngx_mail.h> |
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11 #include <ngx_mail_smtp_module.h> |
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13 |
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14 static void ngx_mail_smtp_invalid_pipelining(ngx_event_t *rev); |
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15 static ngx_int_t ngx_mail_smtp_create_buffer(ngx_mail_session_t *s, |
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16 ngx_connection_t *c); |
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17 |
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18 static ngx_int_t ngx_mail_smtp_helo(ngx_mail_session_t *s, ngx_connection_t *c); |
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19 static ngx_int_t ngx_mail_smtp_auth(ngx_mail_session_t *s, ngx_connection_t *c); |
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20 static ngx_int_t ngx_mail_smtp_mail(ngx_mail_session_t *s, ngx_connection_t *c); |
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21 static ngx_int_t ngx_mail_smtp_starttls(ngx_mail_session_t *s, |
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22 ngx_connection_t *c); |
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23 |
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24 static ngx_int_t ngx_mail_smtp_discard_command(ngx_mail_session_t *s, |
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25 ngx_connection_t *c, char *err); |
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26 static void ngx_mail_smtp_log_rejected_command(ngx_mail_session_t *s, |
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27 ngx_connection_t *c, char *err); |
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28 |
527 | 29 |
1136 | 30 static u_char smtp_ok[] = "250 2.0.0 OK" CRLF; |
31 static u_char smtp_bye[] = "221 2.0.0 Bye" CRLF; | |
32 static u_char smtp_next[] = "334 " CRLF; | |
33 static u_char smtp_username[] = "334 VXNlcm5hbWU6" CRLF; | |
34 static u_char smtp_password[] = "334 UGFzc3dvcmQ6" CRLF; | |
35 static u_char smtp_invalid_command[] = "500 5.5.1 Invalid command" CRLF; | |
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36 static u_char smtp_invalid_pipelining[] = |
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37 "503 5.5.0 Improper use of SMTP command pipelining" CRLF; |
1136 | 38 static u_char smtp_invalid_argument[] = "501 5.5.4 Invalid argument" CRLF; |
39 static u_char smtp_auth_required[] = "530 5.7.1 Authentication required" CRLF; | |
40 | |
521 | 41 |
42 void | |
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43 ngx_mail_smtp_init_session(ngx_mail_session_t *s, ngx_connection_t *c) |
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44 { |
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45 ngx_msec_t timeout; |
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46 ngx_mail_core_srv_conf_t *cscf; |
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47 ngx_mail_smtp_srv_conf_t *sscf; |
641 | 48 |
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49 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
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50 sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); |
541 | 51 |
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52 timeout = sscf->greeting_delay ? sscf->greeting_delay : cscf->timeout; |
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53 ngx_add_timer(c->read, timeout); |
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54 |
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55 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) { |
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56 ngx_mail_close_connection(c); |
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57 } |
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58 |
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59 if (sscf->greeting_delay) { |
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60 c->read->handler = ngx_mail_smtp_invalid_pipelining; |
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61 return; |
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62 } |
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63 |
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64 c->read->handler = ngx_mail_smtp_init_protocol; |
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66 s->out = sscf->greeting; |
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67 |
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68 ngx_mail_send(c->write); |
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69 } |
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70 |
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71 |
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72 static void |
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73 ngx_mail_smtp_invalid_pipelining(ngx_event_t *rev) |
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74 { |
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75 ngx_connection_t *c; |
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76 ngx_mail_session_t *s; |
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77 ngx_mail_core_srv_conf_t *cscf; |
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78 ngx_mail_smtp_srv_conf_t *sscf; |
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79 |
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80 c = rev->data; |
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81 s = c->data; |
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82 |
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83 c->log->action = "in delay pipelining state"; |
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84 |
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85 if (rev->timedout) { |
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86 |
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87 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "delay greeting"); |
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88 |
1484 | 89 rev->timedout = 0; |
90 | |
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91 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
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92 |
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93 c->read->handler = ngx_mail_smtp_init_protocol; |
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94 |
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95 ngx_add_timer(c->read, cscf->timeout); |
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96 |
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97 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) { |
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98 ngx_mail_close_connection(c); |
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99 return; |
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100 } |
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101 |
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102 sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); |
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103 |
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104 s->out = sscf->greeting; |
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105 |
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106 } else { |
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107 |
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108 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "invalid pipelining"); |
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109 |
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110 if (s->buffer == NULL) { |
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111 if (ngx_mail_smtp_create_buffer(s, c) != NGX_OK) { |
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112 return; |
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113 } |
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114 } |
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115 |
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116 if (ngx_mail_smtp_discard_command(s, c, |
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117 "client was rejected before greeting: \"%V\"") |
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118 != NGX_OK) |
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119 { |
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120 return; |
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121 } |
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122 |
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123 s->out.len = sizeof(smtp_invalid_pipelining) - 1; |
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124 s->out.data = smtp_invalid_pipelining; |
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125 } |
539 | 126 |
1136 | 127 ngx_mail_send(c->write); |
539 | 128 } |
129 | |
130 | |
131 void | |
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132 ngx_mail_smtp_init_protocol(ngx_event_t *rev) |
539 | 133 { |
1476
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134 ngx_connection_t *c; |
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135 ngx_mail_session_t *s; |
417
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diff
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|
136 |
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137 c = rev->data; |
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138 |
541 | 139 c->log->action = "in auth state"; |
140 | |
423
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diff
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|
141 if (rev->timedout) { |
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142 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); |
577 | 143 c->timedout = 1; |
1136 | 144 ngx_mail_close_connection(c); |
423
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145 return; |
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146 } |
420
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147 |
539 | 148 s = c->data; |
521 | 149 |
1483
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150 if (s->buffer == NULL) { |
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151 if (ngx_mail_smtp_create_buffer(s, c) != NGX_OK) { |
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152 return; |
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153 } |
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|
154 } |
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155 |
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156 s->mail_state = ngx_smtp_start; |
1477 | 157 c->read->handler = ngx_mail_smtp_auth_state; |
1136 | 158 |
1477 | 159 ngx_mail_smtp_auth_state(rev); |
521 | 160 } |
161 | |
162 | |
1483
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163 static ngx_int_t |
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164 ngx_mail_smtp_create_buffer(ngx_mail_session_t *s, ngx_connection_t *c) |
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|
165 { |
1487
f69493e8faab
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166 ngx_mail_smtp_srv_conf_t *sscf; |
1483
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167 |
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168 if (ngx_array_init(&s->args, c->pool, 2, sizeof(ngx_str_t)) == NGX_ERROR) { |
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169 ngx_mail_session_internal_server_error(s); |
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170 return NGX_ERROR; |
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171 } |
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172 |
1487
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173 sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); |
1483
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174 |
1487
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175 s->buffer = ngx_create_temp_buf(c->pool, sscf->client_buffer_size); |
1483
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176 if (s->buffer == NULL) { |
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177 ngx_mail_session_internal_server_error(s); |
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178 return NGX_ERROR; |
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179 } |
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180 |
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181 return NGX_OK; |
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182 } |
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|
183 |
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|
184 |
527 | 185 void |
1477 | 186 ngx_mail_smtp_auth_state(ngx_event_t *rev) |
420
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187 { |
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188 ngx_int_t rc; |
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189 ngx_connection_t *c; |
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190 ngx_mail_session_t *s; |
420
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419
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|
191 |
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|
192 c = rev->data; |
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193 s = c->data; |
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|
194 |
1136 | 195 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "smtp auth state"); |
421
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|
196 |
423
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197 if (rev->timedout) { |
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|
198 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); |
577 | 199 c->timedout = 1; |
1136 | 200 ngx_mail_close_connection(c); |
423
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201 return; |
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|
202 } |
420
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419
diff
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|
203 |
539 | 204 if (s->out.len) { |
1136 | 205 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "smtp send handler busy"); |
539 | 206 s->blocked = 1; |
207 return; | |
208 } | |
209 | |
210 s->blocked = 0; | |
211 | |
1482 | 212 rc = ngx_mail_read_command(s, c); |
420
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diff
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|
213 |
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419
diff
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|
214 if (rc == NGX_AGAIN || rc == NGX_ERROR) { |
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diff
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215 return; |
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diff
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|
216 } |
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217 |
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218 s->out.len = sizeof(smtp_ok) - 1; |
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|
219 s->out.data = smtp_ok; |
421
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|
220 |
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diff
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|
221 if (rc == NGX_OK) { |
1136 | 222 switch (s->mail_state) { |
421
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diff
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|
223 |
1136 | 224 case ngx_smtp_start: |
421
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225 |
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226 switch (s->command) { |
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227 |
1136 | 228 case NGX_SMTP_HELO: |
229 case NGX_SMTP_EHLO: | |
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230 rc = ngx_mail_smtp_helo(s, c); |
809 | 231 break; |
232 | |
1136 | 233 case NGX_SMTP_AUTH: |
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|
234 rc = ngx_mail_smtp_auth(s, c); |
800 | 235 break; |
236 | |
1136 | 237 case NGX_SMTP_QUIT: |
539 | 238 s->quit = 1; |
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239 s->out.len = sizeof(smtp_bye) - 1; |
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|
240 s->out.data = smtp_bye; |
527 | 241 break; |
242 | |
1136 | 243 case NGX_SMTP_MAIL: |
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244 rc = ngx_mail_smtp_mail(s, c); |
583 | 245 break; |
246 | |
1136 | 247 case NGX_SMTP_NOOP: |
248 case NGX_SMTP_RSET: | |
421
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|
249 break; |
1322 | 250 |
251 case NGX_SMTP_STARTTLS: | |
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252 rc = ngx_mail_smtp_starttls(s, c); |
1322 | 253 break; |
254 | |
255 default: | |
256 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
257 break; | |
421
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|
258 } |
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259 |
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|
260 break; |
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261 |
1136 | 262 case ngx_smtp_auth_login_username: |
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263 rc = ngx_mail_auth_login_username(s, c); |
809 | 264 |
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265 s->out.len = sizeof(smtp_password) - 1; |
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266 s->out.data = smtp_password; |
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267 s->mail_state = ngx_smtp_auth_login_password; |
809 | 268 break; |
269 | |
1136 | 270 case ngx_smtp_auth_login_password: |
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271 rc = ngx_mail_auth_login_password(s, c); |
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272 break; |
809 | 273 |
1136 | 274 case ngx_smtp_auth_plain: |
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275 rc = ngx_mail_auth_plain(s, c, 0); |
894
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|
276 break; |
809 | 277 |
1136 | 278 case ngx_smtp_auth_cram_md5: |
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279 rc = ngx_mail_auth_cram_md5(s, c); |
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280 break; |
421
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281 } |
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282 } |
420
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283 |
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284 switch (rc) { |
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285 |
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286 case NGX_DONE: |
1482 | 287 ngx_mail_auth(s, c); |
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288 return; |
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289 |
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290 case NGX_ERROR: |
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291 ngx_mail_session_internal_server_error(s); |
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292 return; |
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293 |
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294 case NGX_MAIL_PARSE_INVALID_COMMAND: |
1136 | 295 s->mail_state = ngx_smtp_start; |
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296 s->state = 0; |
420
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297 |
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298 s->out.len = sizeof(smtp_invalid_command) - 1; |
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299 s->out.data = smtp_invalid_command; |
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300 |
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301 /* fall through */ |
539 | 302 |
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303 case NGX_OK: |
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304 s->args.nelts = 0; |
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305 s->buffer->pos = s->buffer->start; |
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306 s->buffer->last = s->buffer->start; |
810 | 307 |
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308 if (s->state) { |
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309 s->arg_start = s->buffer->start; |
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310 } |
539 | 311 |
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312 ngx_mail_send(c->write); |
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313 } |
417
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314 } |
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315 |
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316 |
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317 static ngx_int_t |
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318 ngx_mail_smtp_helo(ngx_mail_session_t *s, ngx_connection_t *c) |
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319 { |
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320 ngx_str_t *arg; |
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321 ngx_mail_smtp_srv_conf_t *sscf; |
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322 #if (NGX_MAIL_SSL) |
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323 ngx_mail_ssl_conf_t *sslcf; |
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324 #endif |
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325 |
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326 if (s->args.nelts != 1) { |
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327 s->out.len = sizeof(smtp_invalid_argument) - 1; |
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328 s->out.data = smtp_invalid_argument; |
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329 s->state = 0; |
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330 return NGX_OK; |
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331 } |
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332 |
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333 arg = s->args.elts; |
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334 |
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335 s->smtp_helo.len = arg[0].len; |
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336 |
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337 s->smtp_helo.data = ngx_palloc(c->pool, arg[0].len); |
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338 if (s->smtp_helo.data == NULL) { |
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339 return NGX_ERROR; |
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340 } |
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341 |
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342 ngx_memcpy(s->smtp_helo.data, arg[0].data, arg[0].len); |
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343 |
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344 sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); |
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345 |
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346 if (s->command == NGX_SMTP_HELO) { |
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347 s->out = sscf->server_name; |
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348 |
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349 } else { |
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350 s->esmtp = 1; |
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351 |
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352 #if (NGX_MAIL_SSL) |
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353 |
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354 if (c->ssl == NULL) { |
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355 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
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356 |
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357 if (sslcf->starttls == NGX_MAIL_STARTTLS_ON) { |
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358 s->out = sscf->starttls_capability; |
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359 return NGX_OK; |
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360 } |
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361 |
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362 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { |
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363 s->out = sscf->starttls_only_capability; |
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364 return NGX_OK; |
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365 } |
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366 } |
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367 #endif |
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368 |
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369 s->out = sscf->capability; |
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370 } |
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371 |
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372 return NGX_OK; |
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373 } |
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374 |
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375 |
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376 static ngx_int_t |
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377 ngx_mail_smtp_auth(ngx_mail_session_t *s, ngx_connection_t *c) |
525 | 378 { |
1479 | 379 ngx_int_t rc; |
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380 ngx_mail_core_srv_conf_t *cscf; |
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381 ngx_mail_smtp_srv_conf_t *sscf; |
525 | 382 |
1479 | 383 #if (NGX_MAIL_SSL) |
384 if (ngx_mail_starttls_only(s, c)) { | |
385 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
539 | 386 } |
387 #endif | |
388 | |
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389 if (s->args.nelts == 0) { |
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390 s->out.len = sizeof(smtp_invalid_argument) - 1; |
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391 s->out.data = smtp_invalid_argument; |
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392 s->state = 0; |
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393 return NGX_OK; |
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394 } |
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395 |
1479 | 396 rc = ngx_mail_auth_parse(s, c); |
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397 |
1479 | 398 switch (rc) { |
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399 |
1479 | 400 case NGX_MAIL_AUTH_LOGIN: |
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401 |
1479 | 402 s->out.len = sizeof(smtp_username) - 1; |
403 s->out.data = smtp_username; | |
404 s->mail_state = ngx_smtp_auth_login_username; | |
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405 |
1479 | 406 return NGX_OK; |
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407 |
1479 | 408 case NGX_MAIL_AUTH_PLAIN: |
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409 |
1479 | 410 s->out.len = sizeof(smtp_next) - 1; |
411 s->out.data = smtp_next; | |
412 s->mail_state = ngx_smtp_auth_plain; | |
543 | 413 |
1479 | 414 return NGX_OK; |
415 | |
416 case NGX_MAIL_AUTH_CRAM_MD5: | |
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417 |
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|
418 sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); |
1476
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parents:
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diff
changeset
|
419 |
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1486
diff
changeset
|
420 if (!(sscf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED)) { |
1476
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parents:
1472
diff
changeset
|
421 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
422 } |
479 | 423 |
1485
b3488fc2675a
create salt just before it will be used
Igor Sysoev <igor@sysoev.ru>
parents:
1484
diff
changeset
|
424 if (s->salt.data == NULL) { |
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1486
diff
changeset
|
425 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1486
diff
changeset
|
426 |
1485
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create salt just before it will be used
Igor Sysoev <igor@sysoev.ru>
parents:
1484
diff
changeset
|
427 if (ngx_mail_salt(s, c, cscf) != NGX_OK) { |
b3488fc2675a
create salt just before it will be used
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parents:
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diff
changeset
|
428 return NGX_ERROR; |
b3488fc2675a
create salt just before it will be used
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parents:
1484
diff
changeset
|
429 } |
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create salt just before it will be used
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
430 } |
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create salt just before it will be used
Igor Sysoev <igor@sysoev.ru>
parents:
1484
diff
changeset
|
431 |
1479 | 432 if (ngx_mail_auth_cram_md5_salt(s, c, "334 ", 4) == NGX_OK) { |
433 s->mail_state = ngx_smtp_auth_cram_md5; | |
434 return NGX_OK; | |
1476
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parents:
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diff
changeset
|
435 } |
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parents:
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diff
changeset
|
436 |
1479 | 437 return NGX_ERROR; |
1476
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parents:
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diff
changeset
|
438 } |
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parents:
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diff
changeset
|
439 |
1479 | 440 return rc; |
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
415
diff
changeset
|
441 } |
539 | 442 |
443 | |
1476
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parents:
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diff
changeset
|
444 static ngx_int_t |
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parents:
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diff
changeset
|
445 ngx_mail_smtp_mail(ngx_mail_session_t *s, ngx_connection_t *c) |
541 | 446 { |
1481
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
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diff
changeset
|
447 ngx_mail_smtp_log_rejected_command(s, c, "client was rejected: \"%V\""); |
577 | 448 |
1476
67578e966dcc
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parents:
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diff
changeset
|
449 s->out.len = sizeof(smtp_auth_required) - 1; |
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parents:
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diff
changeset
|
450 s->out.data = smtp_auth_required; |
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split pop3, imap, and smtp handlers
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parents:
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diff
changeset
|
451 |
67578e966dcc
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parents:
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diff
changeset
|
452 return NGX_OK; |
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parents:
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diff
changeset
|
453 } |
67578e966dcc
split pop3, imap, and smtp handlers
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parents:
1472
diff
changeset
|
454 |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
455 |
67578e966dcc
split pop3, imap, and smtp handlers
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parents:
1472
diff
changeset
|
456 static ngx_int_t |
67578e966dcc
split pop3, imap, and smtp handlers
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parents:
1472
diff
changeset
|
457 ngx_mail_smtp_starttls(ngx_mail_session_t *s, ngx_connection_t *c) |
67578e966dcc
split pop3, imap, and smtp handlers
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parents:
1472
diff
changeset
|
458 { |
67578e966dcc
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parents:
1472
diff
changeset
|
459 #if (NGX_MAIL_SSL) |
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parents:
1472
diff
changeset
|
460 ngx_mail_ssl_conf_t *sslcf; |
541 | 461 |
1476
67578e966dcc
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Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
462 if (c->ssl == NULL) { |
67578e966dcc
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Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
463 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
464 if (sslcf->starttls) { |
541 | 465 |
1476
67578e966dcc
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Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
466 /* |
67578e966dcc
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parents:
1472
diff
changeset
|
467 * RFC3207 requires us to discard any knowledge |
67578e966dcc
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parents:
1472
diff
changeset
|
468 * obtained from client before STARTTLS. |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
469 */ |
541 | 470 |
1476
67578e966dcc
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parents:
1472
diff
changeset
|
471 s->smtp_helo.len = 0; |
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parents:
1472
diff
changeset
|
472 s->smtp_helo.data = NULL; |
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parents:
1472
diff
changeset
|
473 |
67578e966dcc
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parents:
1472
diff
changeset
|
474 c->read->handler = ngx_mail_starttls_handler; |
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parents:
1472
diff
changeset
|
475 return NGX_OK; |
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parents:
1472
diff
changeset
|
476 } |
541 | 477 } |
478 | |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
479 #endif |
541 | 480 |
1476
67578e966dcc
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Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
481 return NGX_MAIL_PARSE_INVALID_COMMAND; |
541 | 482 } |
1481
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
483 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
484 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
485 static ngx_int_t |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
486 ngx_mail_smtp_discard_command(ngx_mail_session_t *s, ngx_connection_t *c, |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
487 char *err) |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
488 { |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
489 ssize_t n; |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
490 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
491 n = c->recv(c, s->buffer->last, s->buffer->end - s->buffer->last); |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
492 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
493 if (n == NGX_ERROR || n == 0) { |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
494 ngx_mail_close_connection(c); |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
495 return NGX_ERROR; |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
496 } |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
497 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
498 if (n > 0) { |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
499 s->buffer->last += n; |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
500 } |
1486
0e7074ef7303
style fix: remove trailing spaces
Igor Sysoev <igor@sysoev.ru>
parents:
1485
diff
changeset
|
501 |
1481
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
502 if (n == NGX_AGAIN) { |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
503 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) { |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
504 ngx_mail_session_internal_server_error(s); |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
505 return NGX_ERROR; |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
506 } |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
507 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
508 return NGX_AGAIN; |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
509 } |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
510 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
511 ngx_mail_smtp_log_rejected_command(s, c, err); |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
512 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
513 s->buffer->pos = s->buffer->start; |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
514 s->buffer->last = s->buffer->start; |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
515 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
516 return NGX_OK; |
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parents:
1480
diff
changeset
|
517 } |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
518 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
519 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
520 static void |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
521 ngx_mail_smtp_log_rejected_command(ngx_mail_session_t *s, ngx_connection_t *c, |
b58ce1cf66da
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parents:
1480
diff
changeset
|
522 char *err) |
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smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
523 { |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
524 u_char ch; |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
525 ngx_str_t cmd; |
b58ce1cf66da
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Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
526 ngx_uint_t i; |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
527 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
528 if (c->log->log_level < NGX_LOG_INFO) { |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
529 return; |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
530 } |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
531 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
532 cmd.len = s->buffer->last - s->buffer->start; |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
533 cmd.data = s->buffer->start; |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
534 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
535 for (i = 0; i < cmd.len; i++) { |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
536 ch = cmd.data[i]; |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
537 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
538 if (ch != CR && ch != LF) { |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
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parents:
1480
diff
changeset
|
539 continue; |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
540 } |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
541 |
1493
3c4111e07b58
use "_" instead of " " as new line substitute, do not delete trailing new line
Igor Sysoev <igor@sysoev.ru>
parents:
1487
diff
changeset
|
542 cmd.data[i] = '_'; |
1481
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
543 } |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
544 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
545 cmd.len = i; |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
546 |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
547 ngx_log_error(NGX_LOG_INFO, c->log, 0, err, &cmd); |
b58ce1cf66da
smtp_client_buffer and smtp_greeting_delay
Igor Sysoev <igor@sysoev.ru>
parents:
1480
diff
changeset
|
548 } |