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336
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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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5
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6
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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>
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10 #include <ngx_mail.h>
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11 #include <ngx_mail_smtp_module.h>
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12
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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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409
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23 static ngx_int_t ngx_mail_smtp_rset(ngx_mail_session_t *s, ngx_connection_t *c);
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24 static ngx_int_t ngx_mail_smtp_rcpt(ngx_mail_session_t *s, ngx_connection_t *c);
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336
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25
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26 static ngx_int_t ngx_mail_smtp_discard_command(ngx_mail_session_t *s,
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27 ngx_connection_t *c, char *err);
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28 static void ngx_mail_smtp_log_rejected_command(ngx_mail_session_t *s,
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29 ngx_connection_t *c, char *err);
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30
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31
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32 static u_char smtp_ok[] = "250 2.0.0 OK" CRLF;
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33 static u_char smtp_bye[] = "221 2.0.0 Bye" CRLF;
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34 static u_char smtp_next[] = "334 " CRLF;
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35 static u_char smtp_username[] = "334 VXNlcm5hbWU6" CRLF;
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36 static u_char smtp_password[] = "334 UGFzc3dvcmQ6" CRLF;
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37 static u_char smtp_invalid_command[] = "500 5.5.1 Invalid command" CRLF;
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38 static u_char smtp_invalid_pipelining[] =
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39 "503 5.5.0 Improper use of SMTP command pipelining" CRLF;
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40 static u_char smtp_invalid_argument[] = "501 5.5.4 Invalid argument" CRLF;
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41 static u_char smtp_auth_required[] = "530 5.7.1 Authentication required" CRLF;
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409
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42 static u_char smtp_bad_sequence[] = "503 5.5.1 Bad sequence of commands" CRLF;
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336
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43
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44
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45 void
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46 ngx_mail_smtp_init_session(ngx_mail_session_t *s, ngx_connection_t *c)
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47 {
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48 ngx_msec_t timeout;
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49 ngx_mail_core_srv_conf_t *cscf;
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50 ngx_mail_smtp_srv_conf_t *sscf;
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51
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52 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
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53 sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module);
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54
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55 timeout = sscf->greeting_delay ? sscf->greeting_delay : cscf->timeout;
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56 ngx_add_timer(c->read, timeout);
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57
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58 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
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59 ngx_mail_close_connection(c);
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60 }
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61
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62 if (sscf->greeting_delay) {
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63 c->read->handler = ngx_mail_smtp_invalid_pipelining;
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64 return;
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65 }
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66
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67 c->read->handler = ngx_mail_smtp_init_protocol;
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68
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69 s->out = sscf->greeting;
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70
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71 ngx_mail_send(c->write);
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72 }
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73
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74
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75 static void
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76 ngx_mail_smtp_invalid_pipelining(ngx_event_t *rev)
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77 {
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78 ngx_connection_t *c;
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79 ngx_mail_session_t *s;
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80 ngx_mail_core_srv_conf_t *cscf;
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81 ngx_mail_smtp_srv_conf_t *sscf;
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82
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83 c = rev->data;
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84 s = c->data;
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85
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86 c->log->action = "in delay pipelining state";
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87
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88 if (rev->timedout) {
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89
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90 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "delay greeting");
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91
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92 rev->timedout = 0;
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93
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94 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
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95
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96 c->read->handler = ngx_mail_smtp_init_protocol;
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97
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98 ngx_add_timer(c->read, cscf->timeout);
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99
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100 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
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101 ngx_mail_close_connection(c);
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102 return;
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103 }
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104
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105 sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module);
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106
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107 s->out = sscf->greeting;
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108
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109 } else {
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110
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111 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "invalid pipelining");
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112
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113 if (s->buffer == NULL) {
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114 if (ngx_mail_smtp_create_buffer(s, c) != NGX_OK) {
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115 return;
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116 }
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117 }
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118
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119 if (ngx_mail_smtp_discard_command(s, c,
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120 "client was rejected before greeting: \"%V\"")
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121 != NGX_OK)
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122 {
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123 return;
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124 }
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125
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126 s->out.len = sizeof(smtp_invalid_pipelining) - 1;
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127 s->out.data = smtp_invalid_pipelining;
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128 }
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129
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130 ngx_mail_send(c->write);
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131 }
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132
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133
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134 void
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135 ngx_mail_smtp_init_protocol(ngx_event_t *rev)
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136 {
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137 ngx_connection_t *c;
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138 ngx_mail_session_t *s;
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139
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140 c = rev->data;
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141
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142 c->log->action = "in auth state";
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143
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144 if (rev->timedout) {
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145 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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146 c->timedout = 1;
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147 ngx_mail_close_connection(c);
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148 return;
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149 }
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150
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151 s = c->data;
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152
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153 if (s->buffer == NULL) {
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154 if (ngx_mail_smtp_create_buffer(s, c) != NGX_OK) {
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155 return;
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156 }
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157 }
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158
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159 s->mail_state = ngx_smtp_start;
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160 c->read->handler = ngx_mail_smtp_auth_state;
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161
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162 ngx_mail_smtp_auth_state(rev);
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163 }
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164
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165
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166 static ngx_int_t
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167 ngx_mail_smtp_create_buffer(ngx_mail_session_t *s, ngx_connection_t *c)
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168 {
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169 ngx_mail_smtp_srv_conf_t *sscf;
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170
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171 if (ngx_array_init(&s->args, c->pool, 2, sizeof(ngx_str_t)) == NGX_ERROR) {
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172 ngx_mail_session_internal_server_error(s);
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173 return NGX_ERROR;
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174 }
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175
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176 sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module);
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177
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178 s->buffer = ngx_create_temp_buf(c->pool, sscf->client_buffer_size);
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179 if (s->buffer == NULL) {
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180 ngx_mail_session_internal_server_error(s);
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181 return NGX_ERROR;
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182 }
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183
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184 return NGX_OK;
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185 }
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186
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187
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188 void
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189 ngx_mail_smtp_auth_state(ngx_event_t *rev)
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190 {
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191 ngx_int_t rc;
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192 ngx_connection_t *c;
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193 ngx_mail_session_t *s;
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194
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195 c = rev->data;
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196 s = c->data;
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197
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198 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "smtp auth state");
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199
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200 if (rev->timedout) {
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201 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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202 c->timedout = 1;
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203 ngx_mail_close_connection(c);
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204 return;
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205 }
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206
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207 if (s->out.len) {
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208 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "smtp send handler busy");
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209 s->blocked = 1;
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210 return;
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211 }
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212
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213 s->blocked = 0;
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214
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215 rc = ngx_mail_read_command(s, c);
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216
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217 if (rc == NGX_AGAIN || rc == NGX_ERROR) {
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218 return;
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219 }
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220
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221 s->out.len = sizeof(smtp_ok) - 1;
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222 s->out.data = smtp_ok;
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223
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224 if (rc == NGX_OK) {
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225 switch (s->mail_state) {
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226
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227 case ngx_smtp_start:
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228
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229 switch (s->command) {
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230
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231 case NGX_SMTP_HELO:
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232 case NGX_SMTP_EHLO:
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233 rc = ngx_mail_smtp_helo(s, c);
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234 break;
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235
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236 case NGX_SMTP_AUTH:
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237 rc = ngx_mail_smtp_auth(s, c);
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238 break;
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239
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240 case NGX_SMTP_QUIT:
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241 s->quit = 1;
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242 s->out.len = sizeof(smtp_bye) - 1;
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243 s->out.data = smtp_bye;
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244 break;
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245
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246 case NGX_SMTP_MAIL:
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247 rc = ngx_mail_smtp_mail(s, c);
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248 break;
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249
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409
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250 case NGX_SMTP_RCPT:
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251 rc = ngx_mail_smtp_rcpt(s, c);
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252 break;
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253
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254 case NGX_SMTP_RSET:
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255 rc = ngx_mail_smtp_rset(s, c);
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256 break;
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257
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336
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258 case NGX_SMTP_NOOP:
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259 break;
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260
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261 case NGX_SMTP_STARTTLS:
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262 rc = ngx_mail_smtp_starttls(s, c);
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263 break;
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264
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265 default:
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266 rc = NGX_MAIL_PARSE_INVALID_COMMAND;
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267 break;
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268 }
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269
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270 break;
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271
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272 case ngx_smtp_auth_login_username:
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273 rc = ngx_mail_auth_login_username(s, c);
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274
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275 s->out.len = sizeof(smtp_password) - 1;
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276 s->out.data = smtp_password;
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277 s->mail_state = ngx_smtp_auth_login_password;
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278 break;
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279
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280 case ngx_smtp_auth_login_password:
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281 rc = ngx_mail_auth_login_password(s, c);
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282 break;
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283
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284 case ngx_smtp_auth_plain:
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285 rc = ngx_mail_auth_plain(s, c, 0);
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286 break;
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287
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288 case ngx_smtp_auth_cram_md5:
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289 rc = ngx_mail_auth_cram_md5(s, c);
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290 break;
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291 }
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292 }
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293
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294 switch (rc) {
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295
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296 case NGX_DONE:
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297 ngx_mail_auth(s, c);
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298 return;
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299
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300 case NGX_ERROR:
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301 ngx_mail_session_internal_server_error(s);
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302 return;
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303
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304 case NGX_MAIL_PARSE_INVALID_COMMAND:
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305 s->mail_state = ngx_smtp_start;
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306 s->state = 0;
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307
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308 s->out.len = sizeof(smtp_invalid_command) - 1;
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309 s->out.data = smtp_invalid_command;
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310
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311 /* fall through */
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312
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313 case NGX_OK:
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314 s->args.nelts = 0;
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315 s->buffer->pos = s->buffer->start;
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316 s->buffer->last = s->buffer->start;
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317
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318 if (s->state) {
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319 s->arg_start = s->buffer->start;
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320 }
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321
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322 ngx_mail_send(c->write);
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323 }
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324 }
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325
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326
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327 static ngx_int_t
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328 ngx_mail_smtp_helo(ngx_mail_session_t *s, ngx_connection_t *c)
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329 {
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330 ngx_str_t *arg;
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331 ngx_mail_smtp_srv_conf_t *sscf;
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332 #if (NGX_MAIL_SSL)
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333 ngx_mail_ssl_conf_t *sslcf;
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334 #endif
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335
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336 if (s->args.nelts != 1) {
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337 s->out.len = sizeof(smtp_invalid_argument) - 1;
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338 s->out.data = smtp_invalid_argument;
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339 s->state = 0;
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340 return NGX_OK;
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341 }
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342
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343 arg = s->args.elts;
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344
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345 s->smtp_helo.len = arg[0].len;
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346
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347 s->smtp_helo.data = ngx_palloc(c->pool, arg[0].len);
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348 if (s->smtp_helo.data == NULL) {
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349 return NGX_ERROR;
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350 }
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351
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352 ngx_memcpy(s->smtp_helo.data, arg[0].data, arg[0].len);
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353
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409
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354 s->smtp_from.len = 0;
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355 s->smtp_from.data = NULL;
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356 s->smtp_to.len = 0;
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357 s->smtp_to.data = NULL;
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358
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336
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359 sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module);
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360
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361 if (s->command == NGX_SMTP_HELO) {
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362 s->out = sscf->server_name;
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363
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364 } else {
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365 s->esmtp = 1;
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366
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367 #if (NGX_MAIL_SSL)
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368
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369 if (c->ssl == NULL) {
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370 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module);
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371
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372 if (sslcf->starttls == NGX_MAIL_STARTTLS_ON) {
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373 s->out = sscf->starttls_capability;
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374 return NGX_OK;
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375 }
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376
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377 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) {
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378 s->out = sscf->starttls_only_capability;
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379 return NGX_OK;
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380 }
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381 }
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382 #endif
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383
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384 s->out = sscf->capability;
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385 }
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386
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387 return NGX_OK;
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388 }
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389
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390
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391 static ngx_int_t
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392 ngx_mail_smtp_auth(ngx_mail_session_t *s, ngx_connection_t *c)
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393 {
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394 ngx_int_t rc;
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395 ngx_mail_core_srv_conf_t *cscf;
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396 ngx_mail_smtp_srv_conf_t *sscf;
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397
|
|
|
398 #if (NGX_MAIL_SSL)
|
|
|
399 if (ngx_mail_starttls_only(s, c)) {
|
|
|
400 return NGX_MAIL_PARSE_INVALID_COMMAND;
|
|
|
401 }
|
|
|
402 #endif
|
|
|
403
|
|
|
404 if (s->args.nelts == 0) {
|
|
|
405 s->out.len = sizeof(smtp_invalid_argument) - 1;
|
|
|
406 s->out.data = smtp_invalid_argument;
|
|
|
407 s->state = 0;
|
|
|
408 return NGX_OK;
|
|
|
409 }
|
|
|
410
|
|
|
411 rc = ngx_mail_auth_parse(s, c);
|
|
|
412
|
|
|
413 switch (rc) {
|
|
|
414
|
|
|
415 case NGX_MAIL_AUTH_LOGIN:
|
|
|
416
|
|
|
417 s->out.len = sizeof(smtp_username) - 1;
|
|
|
418 s->out.data = smtp_username;
|
|
|
419 s->mail_state = ngx_smtp_auth_login_username;
|
|
|
420
|
|
|
421 return NGX_OK;
|
|
|
422
|
|
|
423 case NGX_MAIL_AUTH_PLAIN:
|
|
|
424
|
|
|
425 s->out.len = sizeof(smtp_next) - 1;
|
|
|
426 s->out.data = smtp_next;
|
|
|
427 s->mail_state = ngx_smtp_auth_plain;
|
|
|
428
|
|
|
429 return NGX_OK;
|
|
|
430
|
|
|
431 case NGX_MAIL_AUTH_CRAM_MD5:
|
|
|
432
|
|
|
433 sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module);
|
|
|
434
|
|
|
435 if (!(sscf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED)) {
|
|
|
436 return NGX_MAIL_PARSE_INVALID_COMMAND;
|
|
|
437 }
|
|
|
438
|
|
|
439 if (s->salt.data == NULL) {
|
|
|
440 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
|
|
|
441
|
|
|
442 if (ngx_mail_salt(s, c, cscf) != NGX_OK) {
|
|
|
443 return NGX_ERROR;
|
|
|
444 }
|
|
|
445 }
|
|
|
446
|
|
|
447 if (ngx_mail_auth_cram_md5_salt(s, c, "334 ", 4) == NGX_OK) {
|
|
|
448 s->mail_state = ngx_smtp_auth_cram_md5;
|
|
|
449 return NGX_OK;
|
|
|
450 }
|
|
|
451
|
|
|
452 return NGX_ERROR;
|
|
|
453 }
|
|
|
454
|
|
|
455 return rc;
|
|
|
456 }
|
|
|
457
|
|
|
458
|
|
|
459 static ngx_int_t
|
|
|
460 ngx_mail_smtp_mail(ngx_mail_session_t *s, ngx_connection_t *c)
|
|
|
461 {
|
|
409
|
462 u_char ch;
|
|
|
463 ngx_str_t l;
|
|
|
464 ngx_uint_t i;
|
|
|
465 ngx_mail_smtp_srv_conf_t *sscf;
|
|
|
466
|
|
|
467 sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module);
|
|
|
468
|
|
|
469 if (!(sscf->auth_methods & NGX_MAIL_AUTH_NONE_ENABLED)) {
|
|
|
470 ngx_mail_smtp_log_rejected_command(s, c,
|
|
|
471 "client was rejected: \"%V\"");
|
|
|
472
|
|
|
473 s->out.len = sizeof(smtp_auth_required) - 1;
|
|
|
474 s->out.data = smtp_auth_required;
|
|
|
475
|
|
|
476 return NGX_OK;
|
|
|
477 }
|
|
|
478
|
|
|
479 /* auth none */
|
|
|
480
|
|
|
481 if (s->smtp_from.len) {
|
|
|
482 s->out.len = sizeof(smtp_bad_sequence) - 1;
|
|
|
483 s->out.data = smtp_bad_sequence;
|
|
|
484 return NGX_OK;
|
|
|
485 }
|
|
|
486
|
|
|
487 l.len = s->buffer->last - s->buffer->start;
|
|
|
488 l.data = s->buffer->start;
|
|
|
489
|
|
|
490 for (i = 0; i < l.len; i++) {
|
|
|
491 ch = l.data[i];
|
|
|
492
|
|
|
493 if (ch != CR && ch != LF) {
|
|
|
494 continue;
|
|
|
495 }
|
|
|
496
|
|
|
497 l.data[i] = ' ';
|
|
|
498 }
|
|
|
499
|
|
|
500 while (i) {
|
|
|
501 if (l.data[i - 1] != ' ') {
|
|
|
502 break;
|
|
|
503 }
|
|
|
504
|
|
|
505 i--;
|
|
|
506 }
|
|
|
507
|
|
|
508 l.len = i;
|
|
|
509
|
|
|
510 s->smtp_from.len = l.len;
|
|
|
511
|
|
|
512 s->smtp_from.data = ngx_palloc(c->pool, l.len);
|
|
|
513 if (s->smtp_from.data == NULL) {
|
|
|
514 return NGX_ERROR;
|
|
|
515 }
|
|
|
516
|
|
|
517 ngx_memcpy(s->smtp_from.data, l.data, l.len);
|
|
|
518
|
|
|
519 s->out.len = sizeof(smtp_ok) - 1;
|
|
|
520 s->out.data = smtp_ok;
|
|
|
521
|
|
|
522 return NGX_OK;
|
|
|
523 }
|
|
336
|
524
|
|
409
|
525
|
|
|
526 static ngx_int_t
|
|
|
527 ngx_mail_smtp_rcpt(ngx_mail_session_t *s, ngx_connection_t *c)
|
|
|
528 {
|
|
|
529 u_char ch;
|
|
|
530 ngx_str_t l;
|
|
|
531 ngx_uint_t i;
|
|
|
532
|
|
|
533 if (s->smtp_from.len == 0) {
|
|
|
534 s->out.len = sizeof(smtp_bad_sequence) - 1;
|
|
|
535 s->out.data = smtp_bad_sequence;
|
|
|
536 return NGX_OK;
|
|
|
537 }
|
|
|
538
|
|
|
539 l.len = s->buffer->last - s->buffer->start;
|
|
|
540 l.data = s->buffer->start;
|
|
|
541
|
|
|
542 for (i = 0; i < l.len; i++) {
|
|
|
543 ch = l.data[i];
|
|
|
544
|
|
|
545 if (ch != CR && ch != LF) {
|
|
|
546 continue;
|
|
|
547 }
|
|
|
548
|
|
|
549 l.data[i] = ' ';
|
|
|
550 }
|
|
|
551
|
|
|
552 while (i) {
|
|
|
553 if (l.data[i - 1] != ' ') {
|
|
|
554 break;
|
|
|
555 }
|
|
|
556
|
|
|
557 i--;
|
|
|
558 }
|
|
|
559
|
|
|
560 l.len = i;
|
|
|
561
|
|
|
562 s->smtp_to.len = l.len;
|
|
|
563
|
|
|
564 s->smtp_to.data = ngx_palloc(c->pool, l.len);
|
|
|
565 if (s->smtp_to.data == NULL) {
|
|
|
566 return NGX_ERROR;
|
|
|
567 }
|
|
|
568
|
|
|
569 ngx_memcpy(s->smtp_to.data, l.data, l.len);
|
|
|
570
|
|
|
571 s->auth_method = NGX_MAIL_AUTH_NONE;
|
|
|
572
|
|
|
573 return NGX_DONE;
|
|
|
574 }
|
|
|
575
|
|
|
576
|
|
|
577 static ngx_int_t
|
|
|
578 ngx_mail_smtp_rset(ngx_mail_session_t *s, ngx_connection_t *c)
|
|
|
579 {
|
|
|
580 s->smtp_from.len = 0;
|
|
|
581 s->smtp_from.data = NULL;
|
|
|
582 s->smtp_to.len = 0;
|
|
|
583 s->smtp_to.data = NULL;
|
|
|
584
|
|
|
585 s->out.len = sizeof(smtp_ok) - 1;
|
|
|
586 s->out.data = smtp_ok;
|
|
336
|
587
|
|
|
588 return NGX_OK;
|
|
|
589 }
|
|
|
590
|
|
|
591
|
|
|
592 static ngx_int_t
|
|
|
593 ngx_mail_smtp_starttls(ngx_mail_session_t *s, ngx_connection_t *c)
|
|
|
594 {
|
|
|
595 #if (NGX_MAIL_SSL)
|
|
|
596 ngx_mail_ssl_conf_t *sslcf;
|
|
|
597
|
|
|
598 if (c->ssl == NULL) {
|
|
|
599 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module);
|
|
|
600 if (sslcf->starttls) {
|
|
|
601
|
|
|
602 /*
|
|
|
603 * RFC3207 requires us to discard any knowledge
|
|
|
604 * obtained from client before STARTTLS.
|
|
|
605 */
|
|
|
606
|
|
|
607 s->smtp_helo.len = 0;
|
|
|
608 s->smtp_helo.data = NULL;
|
|
409
|
609 s->smtp_from.len = 0;
|
|
|
610 s->smtp_from.data = NULL;
|
|
|
611 s->smtp_to.len = 0;
|
|
|
612 s->smtp_to.data = NULL;
|
|
336
|
613
|
|
|
614 c->read->handler = ngx_mail_starttls_handler;
|
|
|
615 return NGX_OK;
|
|
|
616 }
|
|
|
617 }
|
|
|
618
|
|
|
619 #endif
|
|
|
620
|
|
|
621 return NGX_MAIL_PARSE_INVALID_COMMAND;
|
|
|
622 }
|
|
|
623
|
|
|
624
|
|
|
625 static ngx_int_t
|
|
|
626 ngx_mail_smtp_discard_command(ngx_mail_session_t *s, ngx_connection_t *c,
|
|
|
627 char *err)
|
|
|
628 {
|
|
|
629 ssize_t n;
|
|
|
630
|
|
|
631 n = c->recv(c, s->buffer->last, s->buffer->end - s->buffer->last);
|
|
|
632
|
|
|
633 if (n == NGX_ERROR || n == 0) {
|
|
|
634 ngx_mail_close_connection(c);
|
|
|
635 return NGX_ERROR;
|
|
|
636 }
|
|
|
637
|
|
|
638 if (n > 0) {
|
|
|
639 s->buffer->last += n;
|
|
|
640 }
|
|
|
641
|
|
|
642 if (n == NGX_AGAIN) {
|
|
|
643 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
644 ngx_mail_session_internal_server_error(s);
|
|
|
645 return NGX_ERROR;
|
|
|
646 }
|
|
|
647
|
|
|
648 return NGX_AGAIN;
|
|
|
649 }
|
|
|
650
|
|
|
651 ngx_mail_smtp_log_rejected_command(s, c, err);
|
|
|
652
|
|
|
653 s->buffer->pos = s->buffer->start;
|
|
|
654 s->buffer->last = s->buffer->start;
|
|
|
655
|
|
|
656 return NGX_OK;
|
|
|
657 }
|
|
|
658
|
|
|
659
|
|
|
660 static void
|
|
|
661 ngx_mail_smtp_log_rejected_command(ngx_mail_session_t *s, ngx_connection_t *c,
|
|
|
662 char *err)
|
|
|
663 {
|
|
|
664 u_char ch;
|
|
|
665 ngx_str_t cmd;
|
|
|
666 ngx_uint_t i;
|
|
|
667
|
|
|
668 if (c->log->log_level < NGX_LOG_INFO) {
|
|
|
669 return;
|
|
|
670 }
|
|
|
671
|
|
|
672 cmd.len = s->buffer->last - s->buffer->start;
|
|
|
673 cmd.data = s->buffer->start;
|
|
|
674
|
|
|
675 for (i = 0; i < cmd.len; i++) {
|
|
|
676 ch = cmd.data[i];
|
|
|
677
|
|
|
678 if (ch != CR && ch != LF) {
|
|
|
679 continue;
|
|
|
680 }
|
|
|
681
|
|
|
682 cmd.data[i] = '_';
|
|
|
683 }
|
|
|
684
|
|
|
685 cmd.len = i;
|
|
|
686
|
|
|
687 ngx_log_error(NGX_LOG_INFO, c->log, 0, err, &cmd);
|
|
|
688 }
|
