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0
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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_http.h>
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11
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12
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13 static void ngx_http_init_request(ngx_event_t *ev);
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14 #if (NGX_HTTP_SSL)
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15 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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16 #endif
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17 static void ngx_http_process_request_line(ngx_event_t *rev);
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18 static void ngx_http_process_request_headers(ngx_event_t *rev);
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19 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
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20 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
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21 ngx_uint_t request_line);
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22 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
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23
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24 static void ngx_http_set_write_handler(ngx_http_request_t *r);
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25
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26 static void ngx_http_block_read(ngx_event_t *ev);
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27 static void ngx_http_read_discarded_body_event(ngx_event_t *rev);
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28 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r);
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29
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30 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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31 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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32 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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33 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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34
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35 static void ngx_http_client_error(ngx_http_request_t *r,
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36 int client_error, int error);
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10
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37 static u_char *ngx_http_log_error(void *data, u_char *buf, size_t len);
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0
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38
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39
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40 /* NGX_HTTP_PARSE_... errors */
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41
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42 static char *client_header_errors[] = {
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10
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43 "client %V sent invalid method \"%V\"",
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44 "client %V sent invalid request \"%V\"",
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45 "client %V sent too long URI in request \"%V\"",
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46 "client %V sent invalid method in HTTP/0.9 request \"%V\"",
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47
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48 "client %V sent invalid header, URL: \"%V\"",
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49 "client %V sent too long header line, URL: \"%V\"",
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50 "client %V sent HTTP/1.1 request without \"Host\" header, URL: \"%V\"",
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51 "client %V sent invalid \"Content-Length\" header, URL: \"%V\"",
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52 "client %V sent POST method without \"Content-Length\" header, URL: \"%V\"",
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0
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53 };
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54
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55
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56 ngx_http_header_t ngx_http_headers_in[] = {
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57 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host) },
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58 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection) },
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59 { ngx_string("If-Modified-Since"),
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60 offsetof(ngx_http_headers_in_t, if_modified_since) },
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61 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent) },
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62 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer) },
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63 { ngx_string("Content-Length"),
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64 offsetof(ngx_http_headers_in_t, content_length) },
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65
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66 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range) },
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67 #if 0
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68 { ngx_string("If-Range"), offsetof(ngx_http_headers_in_t, if_range) },
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69 #endif
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70
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71 #if (NGX_HTTP_GZIP)
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72 { ngx_string("Accept-Encoding"),
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73 offsetof(ngx_http_headers_in_t, accept_encoding) },
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74 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via) },
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75 #endif
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76
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77 { ngx_string("Authorization"),
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78 offsetof(ngx_http_headers_in_t, authorization) },
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79
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80 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive) },
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81
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82 #if (NGX_HTTP_PROXY)
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83 { ngx_string("X-Forwarded-For"),
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84 offsetof(ngx_http_headers_in_t, x_forwarded_for) },
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6
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85 { ngx_string("X-Real-IP"), offsetof(ngx_http_headers_in_t, x_real_ip) },
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86 { ngx_string("X-URL"), offsetof(ngx_http_headers_in_t, x_url) },
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0
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87 #endif
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88
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89 { ngx_null_string, 0 }
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90 };
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91
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92
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93 #if 0
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94 static void ngx_http_dummy(ngx_event_t *wev)
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95 {
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96 return;
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97 }
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98 #endif
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99
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100
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101 void ngx_http_init_connection(ngx_connection_t *c)
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102 {
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103 ngx_event_t *rev;
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104 ngx_http_log_ctx_t *ctx;
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105
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10
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106 if (!(ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t)))) {
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0
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107 ngx_http_close_connection(c);
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108 return;
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109 }
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110
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111 ctx->connection = c->number;
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10
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112 ctx->client = &c->addr_text;
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0
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113 ctx->action = "reading client request line";
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10
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114 ctx->request = NULL;
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0
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115 c->log->data = ctx;
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116 c->log->handler = ngx_http_log_error;
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117 c->log_error = NGX_ERROR_INFO;
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118
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119 rev = c->read;
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120 rev->event_handler = ngx_http_init_request;
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121
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122 /* STUB: epoll edge */ c->write->event_handler = ngx_http_empty_handler;
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123
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124 if (rev->ready) {
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125 /* the deferred accept(), rtsig, aio, iocp */
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126
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127 if (ngx_accept_mutex) {
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128 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
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129 ngx_http_close_connection(c);
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130 return;
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131 }
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132
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133 ngx_post_event(rev);
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134
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135 ngx_mutex_unlock(ngx_posted_events_mutex);
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136 return;
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137 }
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138
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139 #if (NGX_STAT_STUB)
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140 (*ngx_stat_reading)++;
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141 #endif
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142
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143 ngx_http_init_request(rev);
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144 return;
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145 }
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146
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147 ngx_add_timer(rev, c->listening->post_accept_timeout);
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148
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149 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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150 ngx_http_close_connection(c);
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151 return;
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152 }
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153
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154 #if 0
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155 /* TODO: learn SO_SNDBUF (to use in zerocopy) via kqueue's EV_CLEAR event */
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156
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157 c->write->ready = 0;
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158 c->write->event_handler = ngx_http_dummy;
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159
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160 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
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161 ngx_http_close_connection(c);
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162 return;
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163 }
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164 #endif
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165
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166 #if (NGX_STAT_STUB)
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167 (*ngx_stat_reading)++;
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168 #endif
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169
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170 }
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171
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172
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173 static void ngx_http_init_request(ngx_event_t *rev)
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174 {
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175 ngx_uint_t i;
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176 socklen_t len;
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177 struct sockaddr_in addr_in;
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178 ngx_connection_t *c;
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179 ngx_http_request_t *r;
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180 ngx_http_in_port_t *in_port;
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181 ngx_http_in_addr_t *in_addr;
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182 ngx_http_connection_t *hc;
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183 ngx_http_server_name_t *server_name;
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184 ngx_http_core_srv_conf_t *cscf;
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185 ngx_http_core_loc_conf_t *clcf;
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186 #if (NGX_HTTP_SSL)
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187 ngx_http_ssl_srv_conf_t *sscf;
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188 #endif
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189
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190 c = rev->data;
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191
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192 if (rev->timedout) {
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193 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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194
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195 #if (NGX_STAT_STUB)
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196 (*ngx_stat_reading)--;
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197 #endif
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198
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199 ngx_http_close_connection(c);
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200 return;
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201 }
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202
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203 hc = c->data;
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204
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205 if (hc) {
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206
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207 #if (NGX_STAT_STUB)
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208 (*ngx_stat_reading)++;
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209 #endif
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210
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211 } else {
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212 if (!(hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t)))) {
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213
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214 #if (NGX_STAT_STUB)
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215 (*ngx_stat_reading)--;
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216 #endif
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217
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218 ngx_http_close_connection(c);
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219 return;
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220 }
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221 }
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222
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223 r = hc->request;
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224
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225 if (r) {
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226 ngx_memzero(r, sizeof(ngx_http_request_t));
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227
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228 r->pipeline = hc->pipeline;
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229
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230 if (hc->nbusy) {
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231 r->header_in = hc->busy[0];
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232 }
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233
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234 } else {
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235 if (!(r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t)))) {
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236
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237 #if (NGX_STAT_STUB)
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238 (*ngx_stat_reading)--;
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239 #endif
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240
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241 ngx_http_close_connection(c);
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242 return;
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243 }
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244
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245 hc->request = r;
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246 }
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247
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248 #if (NGX_STAT_STUB)
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249 r->stat_reading = 1;
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250 #endif
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251
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252 c->data = r;
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253 r->http_connection = hc;
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254
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255 c->sent = 0;
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256 r->signature = NGX_HTTP_MODULE;
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257
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258 /* find the server configuration for the address:port */
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259
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260 /* AF_INET only */
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261
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262 in_port = c->servers;
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263 in_addr = in_port->addrs.elts;
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264
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265 r->port = in_port->port;
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266 r->port_text = &in_port->port_text;
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267
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268 i = 0;
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269
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270 if (in_port->addrs.nelts > 1) {
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271
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272 /*
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273 * There are several addresses on this port and one of them
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274 * is the "*:port" wildcard so getsockname() is needed to determine
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275 * the server address.
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276 *
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277 * AcceptEx() already gave this address.
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278 */
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279
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10
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280 #if (NGX_WIN32)
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0
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281 if (c->local_sockaddr) {
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282 r->in_addr =
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283 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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284
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285 } else {
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286 #endif
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287 len = sizeof(struct sockaddr_in);
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288 if (getsockname(c->fd, (struct sockaddr *) &addr_in, &len) == -1) {
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289 ngx_connection_error(c, ngx_socket_errno,
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290 "getsockname() failed");
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291 ngx_http_close_connection(c);
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292 return;
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293 }
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294
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295 r->in_addr = addr_in.sin_addr.s_addr;
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296
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10
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297 #if (NGX_WIN32)
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0
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298 }
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299 #endif
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300
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301 /* the last in_port->addrs address is "*" */
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302
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303 for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) {
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304 if (in_addr[i].addr == r->in_addr) {
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305 break;
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306 }
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307 }
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308
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309 } else {
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310 r->in_addr = in_addr[0].addr;
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311 }
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312
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313 r->virtual_names = &in_addr[i].names;
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314
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315 /* the default server configuration for the address:port */
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316 cscf = in_addr[i].core_srv_conf;
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317
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318 r->main_conf = cscf->ctx->main_conf;
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319 r->srv_conf = cscf->ctx->srv_conf;
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320 r->loc_conf = cscf->ctx->loc_conf;
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321
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322 rev->event_handler = ngx_http_process_request_line;
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323
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324 #if (NGX_HTTP_SSL)
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325
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326 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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327 if (sscf->enable) {
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328
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329 if (c->ssl == NULL) {
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330 if (ngx_ssl_create_session(sscf->ssl_ctx, c, NGX_SSL_BUFFER)
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331 == NGX_ERROR)
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332 {
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333 ngx_http_close_connection(c);
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334 return;
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335 }
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336
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337 /*
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338 * The majority of browsers do not send the "close notify" alert.
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339 * Among them are MSIE, Mozilla, Netscape 4, Konqueror, and Links.
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340 * And what is more MSIE ignores the server's alert.
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341 *
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342 * Opera always sends the alert.
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343 */
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344
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345 c->ssl->no_rcv_shut = 1;
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346 rev->event_handler = ngx_http_ssl_handshake;
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347 }
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348
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349 r->filter_need_in_memory = 1;
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350 }
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351
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352 #endif
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353
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354 server_name = cscf->server_names.elts;
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6
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355 r->server_name = server_name->name;
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0
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356
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357 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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358 c->log->file = clcf->err_log->file;
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359 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
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360 c->log->log_level = clcf->err_log->log_level;
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361 }
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362
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363 if (c->buffer == NULL) {
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364 c->buffer = ngx_create_temp_buf(c->pool,
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365 cscf->client_header_buffer_size);
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366 if (c->buffer == NULL) {
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367 ngx_http_close_connection(c);
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368 return;
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369 }
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370 }
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371
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372 if (r->header_in == NULL) {
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373 r->header_in = c->buffer;
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374 }
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375
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376 if (!(r->pool = ngx_create_pool(cscf->request_pool_size, c->log))) {
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377 ngx_http_close_connection(c);
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378 return;
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379 }
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380
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381 if (ngx_array_init(&r->cleanup, r->pool, 5, sizeof(ngx_http_cleanup_t))
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382 == NGX_ERROR)
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383 {
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384 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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385 ngx_http_close_connection(c);
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386 return;
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387 }
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388
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389
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390 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
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391 sizeof(ngx_table_elt_t)) == NGX_ERROR)
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392 {
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393 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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394 ngx_http_close_connection(c);
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395 return;
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396 }
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397
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398
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|
|
399 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
400 if (r->ctx == NULL) {
|
|
|
401 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
402 ngx_http_close_connection(c);
|
|
|
403 return;
|
|
|
404 }
|
|
|
405
|
|
|
406 c->single_connection = 1;
|
|
|
407 r->connection = c;
|
|
|
408
|
|
|
409 r->file.fd = NGX_INVALID_FILE;
|
|
|
410
|
|
|
411 r->headers_in.content_length_n = -1;
|
|
|
412 r->headers_in.keep_alive_n = -1;
|
|
|
413 r->headers_out.content_length_n = -1;
|
|
|
414 r->headers_out.last_modified_time = -1;
|
|
|
415
|
|
|
416 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
417
|
|
|
418 #if (NGX_STAT_STUB)
|
|
|
419 (*ngx_stat_requests)++;
|
|
|
420 #endif
|
|
|
421
|
|
|
422 rev->event_handler(rev);
|
|
|
423 }
|
|
|
424
|
|
|
425
|
|
|
426 #if (NGX_HTTP_SSL)
|
|
|
427
|
|
|
428 static void ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
|
429 {
|
|
10
|
430 u_char buf[1];
|
|
|
431 ssize_t n;
|
|
0
|
432 ngx_int_t rc;
|
|
|
433 ngx_connection_t *c;
|
|
|
434 ngx_http_request_t *r;
|
|
|
435
|
|
|
436 c = rev->data;
|
|
|
437 r = c->data;
|
|
|
438
|
|
|
439 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
440 "http check ssl handshake");
|
|
|
441
|
|
|
442 if (rev->timedout) {
|
|
|
443 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
444 return;
|
|
|
445 }
|
|
|
446
|
|
|
447 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
448
|
|
|
449 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
450 return;
|
|
|
451 }
|
|
|
452
|
|
|
453 if (n == 1) {
|
|
|
454 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
455 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
456 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
457
|
|
|
458 c->recv = ngx_ssl_recv;
|
|
|
459 c->send_chain = ngx_ssl_send_chain;
|
|
|
460
|
|
|
461 rc = ngx_ssl_handshake(c);
|
|
|
462
|
|
|
463 if (rc == NGX_ERROR) {
|
|
|
464 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
465 ngx_http_close_connection(r->connection);
|
|
|
466 return;
|
|
|
467 }
|
|
|
468
|
|
|
469 if (rc != NGX_OK) {
|
|
|
470 return;
|
|
|
471 }
|
|
|
472
|
|
|
473 } else {
|
|
|
474 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
475 "plain http");
|
|
|
476
|
|
|
477 r->plain_http = 1;
|
|
|
478 }
|
|
|
479 }
|
|
|
480
|
|
|
481 rev->event_handler = ngx_http_process_request_line;
|
|
|
482 ngx_http_process_request_line(rev);
|
|
|
483 }
|
|
|
484
|
|
|
485 #endif
|
|
|
486
|
|
|
487
|
|
|
488 static void ngx_http_process_request_line(ngx_event_t *rev)
|
|
|
489 {
|
|
|
490 ssize_t n;
|
|
|
491 ngx_int_t rc, rv;
|
|
|
492 ngx_connection_t *c;
|
|
|
493 ngx_http_request_t *r;
|
|
|
494 ngx_http_log_ctx_t *ctx;
|
|
|
495
|
|
|
496 c = rev->data;
|
|
|
497 r = c->data;
|
|
|
498
|
|
|
499 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
500 "http process request line");
|
|
|
501
|
|
|
502 if (rev->timedout) {
|
|
|
503 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
504 return;
|
|
|
505 }
|
|
|
506
|
|
|
507 rc = NGX_AGAIN;
|
|
|
508
|
|
|
509 for ( ;; ) {
|
|
|
510
|
|
|
511 if (rc == NGX_AGAIN) {
|
|
|
512 n = ngx_http_read_request_header(r);
|
|
|
513
|
|
|
514 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
515 return;
|
|
|
516 }
|
|
|
517 }
|
|
|
518
|
|
|
519 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
520
|
|
|
521 if (rc == NGX_OK) {
|
|
|
522
|
|
|
523 /* the request line has been parsed successfully */
|
|
|
524
|
|
10
|
525 r->request_line.len = r->request_end - r->request_start;
|
|
|
526 r->request_line.data = r->request_start;
|
|
|
527
|
|
0
|
528
|
|
|
529 if (r->args_start) {
|
|
|
530 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
531 } else {
|
|
|
532 r->uri.len = r->uri_end - r->uri_start;
|
|
|
533 }
|
|
|
534
|
|
2
|
535 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
536
|
|
|
537 if (!(r->uri.data = ngx_palloc(r->pool, r->uri.len + 1))) {
|
|
|
538 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
539 ngx_http_close_connection(c);
|
|
|
540 return;
|
|
|
541 }
|
|
|
542
|
|
0
|
543 rc = ngx_http_parse_complex_uri(r);
|
|
|
544
|
|
|
545 if (rc == NGX_HTTP_INTERNAL_SERVER_ERROR) {
|
|
|
546 ngx_http_close_request(r, rc);
|
|
|
547 ngx_http_close_connection(c);
|
|
|
548 return;
|
|
|
549 }
|
|
|
550
|
|
|
551 if (rc != NGX_OK) {
|
|
|
552 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
553 return;
|
|
|
554 }
|
|
|
555
|
|
|
556 } else {
|
|
10
|
557 r->uri.data = r->uri_start;
|
|
0
|
558 }
|
|
|
559
|
|
10
|
560 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
561 r->unparsed_uri.data = r->uri_start;
|
|
|
562
|
|
0
|
563
|
|
|
564 if (r->method == 0) {
|
|
|
565 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
566 r->method_name.data = r->request_line.data;
|
|
|
567 }
|
|
|
568
|
|
10
|
569
|
|
0
|
570 if (r->uri_ext) {
|
|
|
571 if (r->args_start) {
|
|
|
572 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
573 } else {
|
|
|
574 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
575 }
|
|
|
576
|
|
10
|
577 r->exten.data = r->uri_ext;
|
|
0
|
578 }
|
|
|
579
|
|
10
|
580
|
|
0
|
581 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
582 r->args.len = r->uri_end - r->args_start;
|
|
10
|
583 r->args.data = r->args_start;
|
|
0
|
584 }
|
|
|
585
|
|
10
|
586
|
|
|
587 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
588 "http request line: \"%V\"", &r->request_line);
|
|
|
589
|
|
0
|
590 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
591 "http uri: \"%V\"", &r->uri);
|
|
0
|
592
|
|
|
593 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
594 "http args: \"%V\"", &r->args);
|
|
0
|
595
|
|
|
596 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
597 "http exten: \"%V\"", &r->exten);
|
|
|
598
|
|
|
599 ctx = c->log->data;
|
|
|
600 ctx->request = r;
|
|
0
|
601
|
|
|
602 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
|
603 rev->event_handler = ngx_http_block_read;
|
|
|
604 ngx_http_handler(r);
|
|
|
605 return;
|
|
|
606 }
|
|
|
607
|
|
|
608
|
|
|
609 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
|
610 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
|
611 {
|
|
|
612 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
613 ngx_http_close_connection(c);
|
|
|
614 return;
|
|
|
615 }
|
|
|
616
|
|
|
617
|
|
|
618 if (ngx_array_init(&r->headers_in.cookies, r->pool, 5,
|
|
|
619 sizeof(ngx_table_elt_t *)) == NGX_ERROR)
|
|
|
620 {
|
|
|
621 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
622 ngx_http_close_connection(c);
|
|
|
623 return;
|
|
|
624 }
|
|
|
625
|
|
|
626 ctx->action = "reading client request headers";
|
|
|
627
|
|
|
628 rev->event_handler = ngx_http_process_request_headers;
|
|
|
629 ngx_http_process_request_headers(rev);
|
|
|
630
|
|
|
631 return;
|
|
|
632
|
|
|
633 } else if (rc != NGX_AGAIN) {
|
|
|
634
|
|
|
635 /* there was error while a request line parsing */
|
|
|
636
|
|
10
|
637 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
638
|
|
|
639 #if 0
|
|
0
|
640 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
641 if (*p == CR || *p == LF) {
|
|
|
642 break;
|
|
|
643 }
|
|
|
644 }
|
|
|
645
|
|
|
646 r->request_line.len = p - r->request_start;
|
|
|
647 r->request_line.data = r->request_start;
|
|
|
648
|
|
|
649 if (rc == NGX_HTTP_PARSE_INVALID_METHOD) {
|
|
|
650 r->http_version = NGX_HTTP_VERSION_10;
|
|
|
651 }
|
|
|
652
|
|
|
653 ngx_http_client_error(r, rc,
|
|
|
654 (rc == NGX_HTTP_PARSE_INVALID_METHOD) ?
|
|
|
655 NGX_HTTP_NOT_IMPLEMENTED:
|
|
|
656 NGX_HTTP_BAD_REQUEST);
|
|
10
|
657 #endif
|
|
|
658
|
|
0
|
659 return;
|
|
|
660 }
|
|
|
661
|
|
|
662 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
663
|
|
|
664 if (r->header_in->pos == r->header_in->end) {
|
|
|
665
|
|
|
666 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
667
|
|
|
668 if (rv == NGX_ERROR) {
|
|
|
669 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
670 ngx_http_close_connection(c);
|
|
|
671 return;
|
|
|
672 }
|
|
|
673
|
|
|
674 if (rv == NGX_DECLINED) {
|
|
|
675 ngx_http_client_error(r, NGX_HTTP_PARSE_TOO_LONG_URI,
|
|
|
676 NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
|
677 return;
|
|
|
678 }
|
|
|
679 }
|
|
|
680 }
|
|
|
681 }
|
|
|
682
|
|
|
683
|
|
|
684 static void ngx_http_process_request_headers(ngx_event_t *rev)
|
|
|
685 {
|
|
|
686 ssize_t n;
|
|
|
687 ngx_int_t rc, rv, i;
|
|
|
688 ngx_table_elt_t *h, **cookie;
|
|
|
689 ngx_connection_t *c;
|
|
|
690 ngx_http_request_t *r;
|
|
|
691
|
|
|
692 c = rev->data;
|
|
|
693 r = c->data;
|
|
|
694
|
|
|
695 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
696 "http process request header line");
|
|
|
697
|
|
|
698 if (rev->timedout) {
|
|
|
699 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
700 return;
|
|
|
701 }
|
|
|
702
|
|
|
703 rc = NGX_AGAIN;
|
|
|
704
|
|
|
705 for ( ;; ) {
|
|
|
706
|
|
|
707 if (rc == NGX_AGAIN) {
|
|
|
708
|
|
|
709 if (r->header_in->pos == r->header_in->end) {
|
|
|
710
|
|
|
711 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
712
|
|
|
713 if (rv == NGX_ERROR) {
|
|
|
714 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
715 ngx_http_close_connection(c);
|
|
|
716 return;
|
|
|
717 }
|
|
|
718
|
|
|
719 if (rv == NGX_DECLINED) {
|
|
|
720 ngx_http_client_error(r, NGX_HTTP_PARSE_TOO_LONG_HEADER,
|
|
|
721 NGX_HTTP_BAD_REQUEST);
|
|
|
722 return;
|
|
|
723 }
|
|
|
724 }
|
|
|
725
|
|
|
726 n = ngx_http_read_request_header(r);
|
|
|
727
|
|
|
728 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
729 return;
|
|
|
730 }
|
|
|
731 }
|
|
|
732
|
|
|
733 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
734
|
|
|
735 if (rc == NGX_OK) {
|
|
|
736
|
|
|
737 /* a header line has been parsed successfully */
|
|
|
738
|
|
|
739 r->headers_n++;
|
|
|
740
|
|
|
741 if (!(h = ngx_list_push(&r->headers_in.headers))) {
|
|
|
742 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
743 ngx_http_close_connection(c);
|
|
|
744 return;
|
|
|
745 }
|
|
|
746
|
|
|
747 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
748 h->key.data = r->header_name_start;
|
|
|
749 h->key.data[h->key.len] = '\0';
|
|
|
750
|
|
|
751 h->value.len = r->header_end - r->header_start;
|
|
|
752 h->value.data = r->header_start;
|
|
|
753 h->value.data[h->value.len] = '\0';
|
|
|
754
|
|
|
755 if (h->key.len == sizeof("Cookie") - 1
|
|
|
756 && ngx_strcasecmp(h->key.data, "Cookie") == 0)
|
|
|
757 {
|
|
|
758 if (!(cookie = ngx_array_push(&r->headers_in.cookies))) {
|
|
|
759 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
760 ngx_http_close_connection(c);
|
|
|
761 return;
|
|
|
762 }
|
|
|
763
|
|
|
764 *cookie = h;
|
|
|
765
|
|
|
766 } else {
|
|
|
767
|
|
|
768 for (i = 0; ngx_http_headers_in[i].name.len != 0; i++) {
|
|
|
769 if (ngx_http_headers_in[i].name.len != h->key.len) {
|
|
|
770 continue;
|
|
|
771 }
|
|
|
772
|
|
|
773 if (ngx_strcasecmp(ngx_http_headers_in[i].name.data,
|
|
|
774 h->key.data) == 0)
|
|
|
775 {
|
|
|
776 *((ngx_table_elt_t **) ((char *) &r->headers_in
|
|
|
777 + ngx_http_headers_in[i].offset)) = h;
|
|
|
778 break;
|
|
|
779 }
|
|
|
780 }
|
|
|
781 }
|
|
|
782
|
|
|
783 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
784 "http header: \"%V: %V\"",
|
|
|
785 &h->key, &h->value);
|
|
0
|
786
|
|
|
787 continue;
|
|
|
788
|
|
|
789 } else if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
|
790
|
|
|
791 /* a whole header has been parsed successfully */
|
|
|
792
|
|
|
793 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
794 "http header done");
|
|
|
795
|
|
|
796 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
797
|
|
|
798 rc = ngx_http_process_request_header(r);
|
|
|
799
|
|
|
800 if (rc != NGX_OK) {
|
|
|
801 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
802 return;
|
|
|
803 }
|
|
|
804
|
|
|
805 if (rev->timer_set) {
|
|
|
806 ngx_del_timer(rev);
|
|
|
807 }
|
|
|
808
|
|
|
809 #if (NGX_STAT_STUB)
|
|
|
810 (*ngx_stat_reading)--;
|
|
|
811 r->stat_reading = 0;
|
|
|
812 (*ngx_stat_writing)++;
|
|
|
813 r->stat_writing = 1;
|
|
|
814 #endif
|
|
|
815
|
|
|
816 rev->event_handler = ngx_http_block_read;
|
|
|
817 ngx_http_handler(r);
|
|
|
818 return;
|
|
|
819
|
|
|
820 } else if (rc != NGX_AGAIN) {
|
|
|
821
|
|
|
822 /* there was error while a header line parsing */
|
|
|
823
|
|
|
824 #if (NGX_DEBUG)
|
|
|
825 if (rc == NGX_HTTP_PARSE_INVALID_HEADER
|
|
|
826 && (rev->log->log_level & NGX_LOG_DEBUG_HTTP))
|
|
|
827 {
|
|
|
828 u_char *p;
|
|
|
829 for (p = r->header_name_start;
|
|
|
830 p < r->header_in->last - 1;
|
|
|
831 p++)
|
|
|
832 {
|
|
|
833 if (*p == LF) {
|
|
|
834 break;
|
|
|
835 }
|
|
|
836 }
|
|
|
837 *p = '\0';
|
|
|
838 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
839 "http invalid header: \"%s\"",
|
|
|
840 r->header_name_start);
|
|
|
841 }
|
|
|
842 #endif
|
|
|
843
|
|
|
844 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
845 return;
|
|
|
846 }
|
|
|
847
|
|
|
848 /* NGX_AGAIN: a header line parsing is still not complete */
|
|
|
849
|
|
|
850 }
|
|
|
851 }
|
|
|
852
|
|
|
853
|
|
|
854 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r)
|
|
|
855 {
|
|
|
856 ssize_t n;
|
|
|
857 ngx_event_t *rev;
|
|
|
858 ngx_http_core_srv_conf_t *cscf;
|
|
|
859
|
|
|
860 rev = r->connection->read;
|
|
|
861
|
|
|
862 n = r->header_in->last - r->header_in->pos;
|
|
|
863
|
|
|
864 if (n > 0) {
|
|
|
865 return n;
|
|
|
866 }
|
|
|
867
|
|
|
868 if (!rev->ready) {
|
|
|
869 return NGX_AGAIN;
|
|
|
870 }
|
|
|
871
|
|
|
872 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
873 r->header_in->end - r->header_in->last);
|
|
|
874
|
|
|
875 if (n == NGX_AGAIN) {
|
|
|
876 if (!r->header_timeout_set) {
|
|
|
877 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
878 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
879 r->header_timeout_set = 1;
|
|
|
880 }
|
|
|
881
|
|
|
882 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
883 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
884 ngx_http_close_connection(r->connection);
|
|
|
885 return NGX_ERROR;
|
|
|
886 }
|
|
|
887
|
|
|
888 return NGX_AGAIN;
|
|
|
889 }
|
|
|
890
|
|
|
891 if (n == 0) {
|
|
|
892 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
893 "client closed prematurely connection");
|
|
|
894 }
|
|
|
895
|
|
|
896 if (n == 0 || n == NGX_ERROR) {
|
|
|
897 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
898 ngx_http_close_connection(r->connection);
|
|
|
899 return NGX_ERROR;
|
|
|
900 }
|
|
|
901
|
|
|
902 r->header_in->last += n;
|
|
|
903
|
|
|
904 return n;
|
|
|
905 }
|
|
|
906
|
|
|
907
|
|
|
908 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
909 ngx_uint_t request_line)
|
|
|
910 {
|
|
|
911 u_char *old, *new;
|
|
|
912 ngx_buf_t *b;
|
|
|
913 ngx_http_connection_t *hc;
|
|
|
914 ngx_http_core_srv_conf_t *cscf;
|
|
|
915
|
|
|
916 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
917 "http alloc large header buffer");
|
|
|
918
|
|
|
919 if (request_line && r->state == 0) {
|
|
|
920
|
|
|
921 /* the client fills up the buffer with "\r\n" */
|
|
|
922
|
|
|
923 r->header_in->pos = r->header_in->start;
|
|
|
924 r->header_in->last = r->header_in->start;
|
|
|
925
|
|
|
926 return NGX_OK;
|
|
|
927 }
|
|
|
928
|
|
|
929 old = request_line ? r->request_start : r->header_name_start;
|
|
|
930
|
|
|
931 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
932
|
|
|
933 if (r->state != 0
|
|
|
934 && (size_t) (r->header_in->pos - old)
|
|
|
935 >= cscf->large_client_header_buffers.size)
|
|
|
936 {
|
|
|
937 return NGX_DECLINED;
|
|
|
938 }
|
|
|
939
|
|
|
940 hc = r->http_connection;
|
|
|
941
|
|
|
942 if (hc->nfree) {
|
|
|
943 b = hc->free[--hc->nfree];
|
|
|
944
|
|
|
945 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
946 "http large header free: %p %uz",
|
|
0
|
947 b->pos, b->end - b->last);
|
|
|
948
|
|
|
949 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
950
|
|
|
951 if (hc->busy == NULL) {
|
|
|
952 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
953 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
954 if (hc->busy == NULL) {
|
|
|
955 return NGX_ERROR;
|
|
|
956 }
|
|
|
957 }
|
|
|
958
|
|
|
959 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
960 cscf->large_client_header_buffers.size);
|
|
|
961 if (b == NULL) {
|
|
|
962 return NGX_ERROR;
|
|
|
963 }
|
|
|
964
|
|
|
965 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
966 "http large header alloc: %p %uz",
|
|
0
|
967 b->pos, b->end - b->last);
|
|
|
968
|
|
|
969 } else {
|
|
|
970 return NGX_DECLINED;
|
|
|
971 }
|
|
|
972
|
|
|
973 hc->busy[hc->nbusy++] = b;
|
|
|
974
|
|
|
975 if (r->state == 0) {
|
|
|
976 /*
|
|
|
977 * r->state == 0 means that a header line was parsed successfully
|
|
|
978 * and we do not need to copy incomplete header line and
|
|
|
979 * to relocate the parser header pointers
|
|
|
980 */
|
|
|
981
|
|
|
982 r->header_in = b;
|
|
|
983
|
|
|
984 return NGX_OK;
|
|
|
985 }
|
|
|
986
|
|
|
987 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
988 "http large header copy: %d", r->header_in->pos - old);
|
|
|
989
|
|
|
990 new = b->start;
|
|
|
991
|
|
|
992 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
993
|
|
|
994 b->pos = new + (r->header_in->pos - old);
|
|
|
995 b->last = new + (r->header_in->pos - old);
|
|
|
996
|
|
|
997 if (request_line) {
|
|
|
998 r->request_start = new;
|
|
|
999
|
|
|
1000 if (r->request_end) {
|
|
|
1001 r->request_end = new + (r->request_end - old);
|
|
|
1002 }
|
|
|
1003
|
|
|
1004 r->method_end = new + (r->method_end - old);
|
|
|
1005
|
|
|
1006 r->uri_start = new + (r->uri_start - old);
|
|
|
1007 r->uri_end = new + (r->uri_end - old);
|
|
|
1008
|
|
|
1009 if (r->schema_start) {
|
|
|
1010 r->schema_start = new + (r->schema_start - old);
|
|
|
1011 r->schema_end = new + (r->schema_end - old);
|
|
|
1012 }
|
|
|
1013
|
|
|
1014 if (r->host_start) {
|
|
|
1015 r->host_start = new + (r->host_start - old);
|
|
|
1016 r->host_end = new + (r->host_end - old);
|
|
|
1017 }
|
|
|
1018
|
|
|
1019 if (r->port_start) {
|
|
|
1020 r->port_start = new + (r->port_start - old);
|
|
|
1021 r->port_end = new + (r->port_end - old);
|
|
|
1022 }
|
|
|
1023
|
|
|
1024 if (r->uri_ext) {
|
|
|
1025 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1026 }
|
|
|
1027
|
|
|
1028 if (r->args_start) {
|
|
|
1029 r->args_start = new + (r->args_start - old);
|
|
|
1030 }
|
|
|
1031
|
|
|
1032 } else {
|
|
|
1033 r->header_name_start = new;
|
|
|
1034 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1035 r->header_start = new + (r->header_start - old);
|
|
|
1036 r->header_end = new + (r->header_end - old);
|
|
|
1037 }
|
|
|
1038
|
|
|
1039 r->header_in = b;
|
|
|
1040
|
|
|
1041 return NGX_OK;
|
|
|
1042 }
|
|
|
1043
|
|
|
1044
|
|
|
1045 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r)
|
|
|
1046 {
|
|
|
1047 u_char *ua, *user_agent;
|
|
|
1048 size_t len;
|
|
|
1049 ngx_uint_t i;
|
|
|
1050 ngx_http_server_name_t *name;
|
|
|
1051 ngx_http_core_srv_conf_t *cscf;
|
|
|
1052 ngx_http_core_loc_conf_t *clcf;
|
|
|
1053
|
|
|
1054 if (r->headers_in.host) {
|
|
|
1055 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
|
1056 if (r->headers_in.host->value.data[len] == ':') {
|
|
|
1057 break;
|
|
|
1058 }
|
|
|
1059 }
|
|
|
1060 r->headers_in.host_name_len = len;
|
|
|
1061
|
|
|
1062 /* find the name based server configuration */
|
|
|
1063
|
|
|
1064 name = r->virtual_names->elts;
|
|
|
1065 for (i = 0; i < r->virtual_names->nelts; i++) {
|
|
4
|
1066
|
|
|
1067 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1068 "server name: %V", &name[i].name);
|
|
4
|
1069
|
|
|
1070 if (name[i].wildcard) {
|
|
|
1071 if (r->headers_in.host_name_len <= name[i].name.len) {
|
|
|
1072 continue;
|
|
|
1073 }
|
|
|
1074
|
|
|
1075 if (ngx_rstrncasecmp(r->headers_in.host->value.data,
|
|
|
1076 name[i].name.data,
|
|
|
1077 name[i].name.len) == 0)
|
|
|
1078 {
|
|
|
1079 continue;
|
|
|
1080 }
|
|
|
1081
|
|
|
1082 } else {
|
|
|
1083 if (r->headers_in.host_name_len != name[i].name.len) {
|
|
|
1084 continue;
|
|
|
1085 }
|
|
|
1086
|
|
|
1087 if (ngx_strncasecmp(r->headers_in.host->value.data,
|
|
|
1088 name[i].name.data,
|
|
|
1089 name[i].name.len) != 0)
|
|
|
1090 {
|
|
|
1091 continue;
|
|
|
1092 }
|
|
0
|
1093 }
|
|
|
1094
|
|
4
|
1095 r->srv_conf = name[i].core_srv_conf->ctx->srv_conf;
|
|
|
1096 r->loc_conf = name[i].core_srv_conf->ctx->loc_conf;
|
|
6
|
1097
|
|
|
1098 if (name[i].wildcard) {
|
|
|
1099 r->server_name.len = r->headers_in.host_name_len;
|
|
|
1100 r->server_name.data = r->headers_in.host->value.data;
|
|
|
1101
|
|
|
1102 } else {
|
|
|
1103 r->server_name = name[i].name;
|
|
|
1104 }
|
|
4
|
1105
|
|
|
1106 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1107 r->connection->log->file = clcf->err_log->file;
|
|
|
1108
|
|
|
1109 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1110 r->connection->log->log_level = clcf->err_log->log_level;
|
|
0
|
1111 }
|
|
4
|
1112
|
|
|
1113 break;
|
|
0
|
1114 }
|
|
|
1115
|
|
|
1116 if (i == r->virtual_names->nelts) {
|
|
|
1117 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1118
|
|
|
1119 if (cscf->restrict_host_names != NGX_HTTP_RESTRICT_HOST_OFF) {
|
|
|
1120 return NGX_HTTP_PARSE_INVALID_HOST;
|
|
|
1121 }
|
|
|
1122 }
|
|
|
1123
|
|
|
1124 } else {
|
|
|
1125 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
|
1126 return NGX_HTTP_PARSE_NO_HOST_HEADER;
|
|
|
1127 }
|
|
|
1128 r->headers_in.host_name_len = 0;
|
|
|
1129 }
|
|
|
1130
|
|
|
1131 if (r->headers_in.content_length) {
|
|
|
1132 r->headers_in.content_length_n =
|
|
|
1133 ngx_atoi(r->headers_in.content_length->value.data,
|
|
|
1134 r->headers_in.content_length->value.len);
|
|
|
1135
|
|
|
1136 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
|
1137 return NGX_HTTP_PARSE_INVALID_CL_HEADER;
|
|
|
1138 }
|
|
|
1139 }
|
|
|
1140
|
|
|
1141 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n <= 0) {
|
|
|
1142 return NGX_HTTP_PARSE_POST_WO_CL_HEADER;
|
|
|
1143 }
|
|
|
1144
|
|
|
1145 if (r->plain_http) {
|
|
|
1146 return NGX_HTTP_PARSE_HTTP_TO_HTTPS;
|
|
|
1147 }
|
|
|
1148
|
|
|
1149 if (r->headers_in.connection) {
|
|
|
1150 if (r->headers_in.connection->value.len == 5
|
|
|
1151 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
|
1152 == 0)
|
|
|
1153 {
|
|
|
1154 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1155
|
|
|
1156 } else if (r->headers_in.connection->value.len == 10
|
|
|
1157 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
|
1158 "keep-alive") == 0)
|
|
|
1159 {
|
|
|
1160 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1161
|
|
|
1162 if (r->headers_in.keep_alive) {
|
|
|
1163 r->headers_in.keep_alive_n =
|
|
|
1164 ngx_atoi(r->headers_in.keep_alive->value.data,
|
|
|
1165 r->headers_in.keep_alive->value.len);
|
|
|
1166 }
|
|
|
1167 }
|
|
|
1168 }
|
|
|
1169
|
|
|
1170 if (r->headers_in.user_agent) {
|
|
|
1171
|
|
|
1172 /*
|
|
|
1173 * check some widespread browsers while the headers are still
|
|
|
1174 * in CPU cache
|
|
|
1175 */
|
|
|
1176
|
|
|
1177 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1178
|
|
|
1179 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1180
|
|
|
1181 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1182
|
|
|
1183 r->headers_in.msie = 1;
|
|
|
1184
|
|
|
1185 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1186 r->headers_in.msie4 = 1;
|
|
|
1187 }
|
|
|
1188
|
|
|
1189 #if 0
|
|
|
1190 /* MSIE ignores the SSL "close notify" alert */
|
|
|
1191
|
|
|
1192 ngx_ssl_set_nosendshut(r->connection->ssl);
|
|
|
1193 #endif
|
|
|
1194 }
|
|
|
1195
|
|
|
1196 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1197 r->headers_in.opera = 1;
|
|
|
1198 r->headers_in.msie = 0;
|
|
|
1199 r->headers_in.msie4 = 0;
|
|
|
1200 }
|
|
|
1201
|
|
|
1202 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1203
|
|
|
1204 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1205 r->headers_in.gecko = 1;
|
|
|
1206
|
|
|
1207 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1208 r->headers_in.konqueror = 1;
|
|
|
1209 }
|
|
|
1210 }
|
|
|
1211 }
|
|
|
1212
|
|
|
1213 return NGX_OK;
|
|
|
1214 }
|
|
|
1215
|
|
|
1216
|
|
|
1217 void ngx_http_finalize_request(ngx_http_request_t *r, int rc)
|
|
|
1218 {
|
|
|
1219 ngx_http_core_loc_conf_t *clcf;
|
|
|
1220
|
|
|
1221 /* r can be already destroyed when rc == NGX_DONE */
|
|
|
1222
|
|
|
1223 if (rc == NGX_DONE || r->main) {
|
|
|
1224 return;
|
|
|
1225 }
|
|
|
1226
|
|
|
1227 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1228 "http finalize request: %d", rc);
|
|
|
1229
|
|
|
1230 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
|
|
|
1231
|
|
|
1232 if (r->connection->read->timer_set) {
|
|
|
1233 ngx_del_timer(r->connection->read);
|
|
|
1234 }
|
|
|
1235
|
|
|
1236 if (r->connection->write->timer_set) {
|
|
|
1237 ngx_del_timer(r->connection->write);
|
|
|
1238 }
|
|
|
1239
|
|
|
1240 if (rc == NGX_HTTP_CLIENT_CLOSED_REQUEST || r->closed) {
|
|
|
1241 ngx_http_close_request(r, 0);
|
|
|
1242 ngx_http_close_connection(r->connection);
|
|
|
1243 return;
|
|
|
1244 }
|
|
|
1245
|
|
|
1246 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1247
|
|
|
1248 return;
|
|
|
1249
|
|
|
1250 } else if (rc == NGX_ERROR) {
|
|
|
1251 ngx_http_close_request(r, 0);
|
|
|
1252 ngx_http_close_connection(r->connection);
|
|
|
1253 return;
|
|
|
1254
|
|
|
1255 } else if (rc == NGX_AGAIN) {
|
|
|
1256 ngx_http_set_write_handler(r);
|
|
|
1257 return;
|
|
|
1258 }
|
|
|
1259
|
|
|
1260 if (r->connection->read->timer_set) {
|
|
|
1261 ngx_del_timer(r->connection->read);
|
|
|
1262 }
|
|
|
1263
|
|
|
1264 if (r->connection->write->timer_set) {
|
|
|
1265 r->connection->write->delayed = 0;
|
|
|
1266 ngx_del_timer(r->connection->write);
|
|
|
1267 }
|
|
|
1268
|
|
|
1269 if (r->connection->read->pending_eof) {
|
|
|
1270 #if (NGX_KQUEUE)
|
|
|
1271 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log,
|
|
|
1272 r->connection->read->kq_errno,
|
|
|
1273 "kevent() reported about an closed connection");
|
|
|
1274 #endif
|
|
|
1275 ngx_http_close_request(r, 0);
|
|
|
1276 ngx_http_close_connection(r->connection);
|
|
|
1277 return;
|
|
|
1278 }
|
|
|
1279
|
|
|
1280 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1281
|
|
|
1282 if (!ngx_terminate
|
|
|
1283 && !ngx_exiting
|
|
|
1284 && r->keepalive != 0
|
|
|
1285 && clcf->keepalive_timeout > 0)
|
|
|
1286 {
|
|
|
1287 ngx_http_set_keepalive(r);
|
|
|
1288 return;
|
|
|
1289
|
|
|
1290 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1291 ngx_http_set_lingering_close(r);
|
|
|
1292 return;
|
|
|
1293 }
|
|
|
1294
|
|
|
1295 ngx_http_close_request(r, 0);
|
|
|
1296 ngx_http_close_connection(r->connection);
|
|
|
1297 }
|
|
|
1298
|
|
|
1299
|
|
|
1300 static void ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
|
1301 {
|
|
|
1302 ngx_event_t *wev;
|
|
|
1303 ngx_http_core_loc_conf_t *clcf;
|
|
|
1304
|
|
|
1305 wev = r->connection->write;
|
|
|
1306 wev->event_handler = ngx_http_writer;
|
|
|
1307
|
|
|
1308 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1309
|
|
|
1310 if (wev->ready && wev->delayed) {
|
|
|
1311 return;
|
|
|
1312 }
|
|
|
1313
|
|
|
1314 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1315 ngx_http_core_module);
|
|
|
1316 if (!wev->delayed) {
|
|
|
1317 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1318 }
|
|
|
1319
|
|
2
|
1320 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1321 ngx_http_close_request(r, 0);
|
|
|
1322 ngx_http_close_connection(r->connection);
|
|
|
1323 }
|
|
|
1324
|
|
|
1325 return;
|
|
|
1326 }
|
|
|
1327
|
|
|
1328
|
|
|
1329 void ngx_http_writer(ngx_event_t *wev)
|
|
|
1330 {
|
|
|
1331 int rc;
|
|
|
1332 ngx_connection_t *c;
|
|
|
1333 ngx_http_request_t *r;
|
|
|
1334 ngx_http_core_loc_conf_t *clcf;
|
|
|
1335
|
|
|
1336 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http writer handler");
|
|
|
1337
|
|
|
1338 c = wev->data;
|
|
|
1339 r = c->data;
|
|
|
1340
|
|
|
1341 if (wev->timedout) {
|
|
|
1342 if (!wev->delayed) {
|
|
|
1343 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
1344 return;
|
|
|
1345 }
|
|
|
1346
|
|
|
1347 wev->timedout = 0;
|
|
|
1348 wev->delayed = 0;
|
|
|
1349
|
|
|
1350 if (!wev->ready) {
|
|
|
1351 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1352 ngx_http_core_module);
|
|
|
1353 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1354
|
|
2
|
1355 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1356 ngx_http_close_request(r, 0);
|
|
|
1357 ngx_http_close_connection(r->connection);
|
|
|
1358 }
|
|
|
1359
|
|
|
1360 return;
|
|
|
1361 }
|
|
|
1362
|
|
|
1363 } else {
|
|
|
1364 if (wev->delayed) {
|
|
|
1365 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1366 "http writer delayed");
|
|
|
1367
|
|
|
1368 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1369 ngx_http_core_module);
|
|
2
|
1370
|
|
|
1371 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1372 ngx_http_close_request(r, 0);
|
|
|
1373 ngx_http_close_connection(r->connection);
|
|
|
1374 }
|
|
|
1375
|
|
|
1376 return;
|
|
|
1377 }
|
|
|
1378 }
|
|
|
1379
|
|
|
1380 rc = ngx_http_output_filter(r, NULL);
|
|
|
1381
|
|
|
1382 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1383 "http writer output filter: %d", rc);
|
|
|
1384
|
|
|
1385 if (rc == NGX_AGAIN) {
|
|
|
1386 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1387 ngx_http_core_module);
|
|
|
1388 if (!wev->ready && !wev->delayed) {
|
|
|
1389 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1390 }
|
|
|
1391
|
|
2
|
1392 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1393 ngx_http_close_request(r, 0);
|
|
|
1394 ngx_http_close_connection(r->connection);
|
|
|
1395 }
|
|
|
1396
|
|
|
1397 return;
|
|
|
1398 }
|
|
|
1399
|
|
|
1400 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http writer done");
|
|
|
1401
|
|
|
1402 ngx_http_finalize_request(r, rc);
|
|
|
1403 }
|
|
|
1404
|
|
|
1405
|
|
|
1406 static void ngx_http_block_read(ngx_event_t *rev)
|
|
|
1407 {
|
|
|
1408 ngx_connection_t *c;
|
|
|
1409 ngx_http_request_t *r;
|
|
|
1410
|
|
|
1411 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http read blocked");
|
|
|
1412
|
|
|
1413 /* aio does not call this handler */
|
|
|
1414
|
|
|
1415 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
|
|
|
1416 if (ngx_del_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
1417 c = rev->data;
|
|
|
1418 r = c->data;
|
|
|
1419 ngx_http_close_request(r, 0);
|
|
|
1420 ngx_http_close_connection(c);
|
|
|
1421 }
|
|
|
1422 }
|
|
|
1423 }
|
|
|
1424
|
|
|
1425
|
|
|
1426 ngx_int_t ngx_http_discard_body(ngx_http_request_t *r)
|
|
|
1427 {
|
|
|
1428 ssize_t size;
|
|
|
1429 ngx_event_t *rev;
|
|
|
1430
|
|
|
1431 rev = r->connection->read;
|
|
|
1432
|
|
|
1433 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
|
1434
|
|
|
1435 if (rev->timer_set) {
|
|
|
1436 ngx_del_timer(rev);
|
|
|
1437 }
|
|
|
1438
|
|
|
1439 if (r->headers_in.content_length_n <= 0) {
|
|
|
1440 return NGX_OK;
|
|
|
1441 }
|
|
|
1442
|
|
|
1443 size = r->header_in->last - r->header_in->pos;
|
|
|
1444
|
|
|
1445 if (size) {
|
|
|
1446 if (r->headers_in.content_length_n > size) {
|
|
|
1447 r->headers_in.content_length_n -= size;
|
|
|
1448
|
|
|
1449 } else {
|
|
|
1450 r->header_in->pos += r->headers_in.content_length_n;
|
|
|
1451 r->headers_in.content_length_n = 0;
|
|
|
1452 return NGX_OK;
|
|
|
1453 }
|
|
|
1454 }
|
|
|
1455
|
|
|
1456 rev->event_handler = ngx_http_read_discarded_body_event;
|
|
|
1457
|
|
|
1458 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1459 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1460 }
|
|
|
1461
|
|
|
1462 return ngx_http_read_discarded_body(r);
|
|
|
1463 }
|
|
|
1464
|
|
|
1465
|
|
|
1466 static void ngx_http_read_discarded_body_event(ngx_event_t *rev)
|
|
|
1467 {
|
|
|
1468 ngx_int_t rc;
|
|
|
1469 ngx_connection_t *c;
|
|
|
1470 ngx_http_request_t *r;
|
|
|
1471
|
|
|
1472 c = rev->data;
|
|
|
1473 r = c->data;
|
|
|
1474
|
|
|
1475 rc = ngx_http_read_discarded_body(r);
|
|
|
1476
|
|
|
1477 if (rc == NGX_AGAIN) {
|
|
|
1478 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1479 ngx_http_close_request(r, rc);
|
|
|
1480 ngx_http_close_connection(c);
|
|
|
1481 return;
|
|
|
1482 }
|
|
|
1483 }
|
|
|
1484
|
|
|
1485 if (rc != NGX_OK) {
|
|
|
1486 ngx_http_close_request(r, rc);
|
|
|
1487 ngx_http_close_connection(c);
|
|
|
1488 }
|
|
|
1489 }
|
|
|
1490
|
|
|
1491
|
|
|
1492 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r)
|
|
|
1493 {
|
|
|
1494 ssize_t size, n;
|
|
|
1495 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
|
1496
|
|
|
1497 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1498 "http read discarded body");
|
|
|
1499
|
|
|
1500 if (r->headers_in.content_length_n == 0) {
|
|
|
1501 return NGX_OK;
|
|
|
1502 }
|
|
|
1503
|
|
|
1504
|
|
|
1505 size = r->headers_in.content_length_n;
|
|
|
1506
|
|
|
1507 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
|
1508 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
|
1509 }
|
|
|
1510
|
|
|
1511 n = r->connection->recv(r->connection, buffer, size);
|
|
|
1512
|
|
|
1513 if (n == NGX_ERROR) {
|
|
|
1514
|
|
|
1515 r->closed = 1;
|
|
|
1516
|
|
|
1517 /*
|
|
|
1518 * if a client request body is discarded then we already set
|
|
|
1519 * some HTTP response code for client and we can ignore the error
|
|
|
1520 */
|
|
|
1521
|
|
|
1522 return NGX_OK;
|
|
|
1523 }
|
|
|
1524
|
|
|
1525 if (n == NGX_AGAIN) {
|
|
|
1526 return NGX_AGAIN;
|
|
|
1527 }
|
|
|
1528
|
|
|
1529 r->headers_in.content_length_n -= n;
|
|
|
1530
|
|
|
1531 return NGX_OK;
|
|
|
1532 }
|
|
|
1533
|
|
|
1534
|
|
|
1535 static void ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
|
1536 {
|
|
2
|
1537 int tcp_nodelay;
|
|
0
|
1538 ngx_int_t i;
|
|
|
1539 ngx_buf_t *b, *f;
|
|
|
1540 ngx_event_t *rev, *wev;
|
|
|
1541 ngx_connection_t *c;
|
|
|
1542 ngx_http_connection_t *hc;
|
|
|
1543 ngx_http_log_ctx_t *ctx;
|
|
|
1544 ngx_http_core_srv_conf_t *cscf;
|
|
|
1545 ngx_http_core_loc_conf_t *clcf;
|
|
|
1546
|
|
|
1547 c = r->connection;
|
|
|
1548 rev = c->read;
|
|
|
1549
|
|
|
1550 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1551
|
|
10
|
1552 ctx = c->log->data;
|
|
0
|
1553 ctx->action = "closing request";
|
|
|
1554
|
|
|
1555 hc = r->http_connection;
|
|
|
1556 b = r->header_in;
|
|
|
1557
|
|
|
1558 if (b->pos < b->last) {
|
|
|
1559
|
|
|
1560 /* the pipelined request */
|
|
|
1561
|
|
|
1562 if (b != c->buffer) {
|
|
|
1563
|
|
4
|
1564 /*
|
|
|
1565 * If the large header buffers were allocated while the previous
|
|
|
1566 * request processing then we do not use c->buffer for
|
|
|
1567 * the pipelined request (see ngx_http_init_request()).
|
|
|
1568 *
|
|
|
1569 * Now we would move the large header buffers to the free list.
|
|
|
1570 */
|
|
0
|
1571
|
|
|
1572 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1573
|
|
|
1574 if (hc->free == NULL) {
|
|
|
1575 hc->free = ngx_palloc(c->pool,
|
|
|
1576 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1577
|
|
|
1578 if (hc->free == NULL) {
|
|
|
1579 ngx_http_close_connection(c);
|
|
|
1580 return;
|
|
|
1581 }
|
|
|
1582 }
|
|
|
1583
|
|
|
1584 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1585 f = hc->busy[i];
|
|
|
1586 hc->free[hc->nfree++] = f;
|
|
|
1587 f->pos = f->start;
|
|
|
1588 f->last = f->start;
|
|
|
1589 }
|
|
|
1590
|
|
|
1591 hc->busy[0] = b;
|
|
|
1592 hc->nbusy = 1;
|
|
|
1593 }
|
|
|
1594 }
|
|
|
1595
|
|
|
1596 ngx_http_close_request(r, 0);
|
|
|
1597 c->data = hc;
|
|
|
1598
|
|
|
1599 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1600 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1601
|
|
|
1602 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1603 ngx_http_close_connection(c);
|
|
|
1604 return;
|
|
|
1605 }
|
|
|
1606
|
|
|
1607 wev = c->write;
|
|
|
1608 wev->event_handler = ngx_http_empty_handler;
|
|
|
1609
|
|
|
1610 if (b->pos < b->last) {
|
|
|
1611
|
|
|
1612 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1613
|
|
|
1614 hc->pipeline = 1;
|
|
|
1615 ctx->action = "reading client pipelined request line";
|
|
|
1616 ngx_http_init_request(rev);
|
|
|
1617 return;
|
|
|
1618 }
|
|
|
1619
|
|
|
1620 hc->pipeline = 0;
|
|
|
1621
|
|
4
|
1622 /*
|
|
|
1623 * To keep a memory footprint as small as possible for an idle
|
|
|
1624 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1625 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1626 * The large header buffers are always allocated outside the c->pool and
|
|
|
1627 * are freed too.
|
|
|
1628 */
|
|
|
1629
|
|
0
|
1630 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1631 hc->request = NULL;
|
|
|
1632 }
|
|
|
1633
|
|
|
1634 b = c->buffer;
|
|
|
1635
|
|
|
1636 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1637
|
|
|
1638 /*
|
|
|
1639 * the special note for ngx_http_keepalive_handler() that
|
|
|
1640 * c->buffer's memory was freed
|
|
|
1641 */
|
|
|
1642
|
|
0
|
1643 b->pos = NULL;
|
|
|
1644
|
|
|
1645 } else {
|
|
|
1646 b->pos = b->start;
|
|
|
1647 b->last = b->start;
|
|
|
1648 }
|
|
|
1649
|
|
10
|
1650 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1651 hc->free, hc->nfree);
|
|
|
1652
|
|
|
1653 if (hc->free) {
|
|
|
1654 for (i = 0; i < hc->nfree; i++) {
|
|
|
1655 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1656 hc->free[i] = NULL;
|
|
|
1657 }
|
|
|
1658
|
|
|
1659 hc->nfree = 0;
|
|
|
1660 }
|
|
|
1661
|
|
10
|
1662 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1663 hc->busy, hc->nbusy);
|
|
|
1664
|
|
|
1665 if (hc->busy) {
|
|
|
1666 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1667 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1668 hc->busy[i] = NULL;
|
|
|
1669 }
|
|
|
1670
|
|
|
1671 hc->nbusy = 0;
|
|
|
1672 }
|
|
|
1673
|
|
|
1674 rev->event_handler = ngx_http_keepalive_handler;
|
|
|
1675
|
|
|
1676 if (wev->active) {
|
|
4
|
1677 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1678 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
1679 == NGX_ERROR)
|
|
|
1680 {
|
|
|
1681 ngx_http_close_connection(c);
|
|
|
1682 return;
|
|
|
1683 }
|
|
|
1684
|
|
|
1685 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
1686 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1687 ngx_http_close_connection(c);
|
|
|
1688 return;
|
|
|
1689 }
|
|
|
1690 }
|
|
|
1691 }
|
|
|
1692
|
|
|
1693 ctx->action = "keepalive";
|
|
|
1694
|
|
|
1695 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
|
1696 if (ngx_tcp_push(c->fd) == NGX_ERROR) {
|
|
|
1697 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
1698 ngx_http_close_connection(c);
|
|
|
1699 return;
|
|
|
1700 }
|
|
2
|
1701
|
|
0
|
1702 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
2
|
1703
|
|
|
1704 } else {
|
|
|
1705 if (clcf->tcp_nodelay && !c->tcp_nodelay) {
|
|
|
1706 tcp_nodelay = 1;
|
|
|
1707
|
|
|
1708 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1709
|
|
|
1710 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
1711 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
1712 {
|
|
|
1713 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1714 "setsockopt(TCP_NODELAY) failed");
|
|
|
1715 ngx_http_close_connection(c);
|
|
|
1716 return;
|
|
|
1717 }
|
|
|
1718
|
|
|
1719 c->tcp_nodelay = 1;
|
|
|
1720 }
|
|
0
|
1721 }
|
|
|
1722
|
|
|
1723 #if 0
|
|
4
|
1724 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
1725 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
1726 #endif
|
|
|
1727
|
|
|
1728 if (rev->ready) {
|
|
|
1729 ngx_http_keepalive_handler(rev);
|
|
|
1730 }
|
|
|
1731 }
|
|
|
1732
|
|
|
1733
|
|
|
1734 static void ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
|
1735 {
|
|
|
1736 size_t size;
|
|
|
1737 ssize_t n;
|
|
|
1738 ngx_buf_t *b;
|
|
|
1739 ngx_connection_t *c;
|
|
|
1740 ngx_http_log_ctx_t *ctx;
|
|
|
1741 ngx_http_connection_t *hc;
|
|
|
1742
|
|
|
1743 c = rev->data;
|
|
|
1744
|
|
|
1745 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
1746
|
|
|
1747 if (rev->timedout) {
|
|
|
1748 ngx_http_close_connection(c);
|
|
|
1749 return;
|
|
|
1750 }
|
|
|
1751
|
|
|
1752 ctx = (ngx_http_log_ctx_t *) rev->log->data;
|
|
|
1753
|
|
|
1754 #if (HAVE_KQUEUE)
|
|
|
1755
|
|
4
|
1756 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1757 if (rev->pending_eof) {
|
|
10
|
1758 rev->log->handler = NULL;
|
|
0
|
1759 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
1760 "kevent() reported that client %V closed "
|
|
0
|
1761 "keepalive connection", ctx->client);
|
|
|
1762 ngx_http_close_connection(c);
|
|
|
1763 return;
|
|
|
1764 }
|
|
|
1765 }
|
|
|
1766
|
|
|
1767 #endif
|
|
|
1768
|
|
|
1769 hc = c->data;
|
|
|
1770 b = c->buffer;
|
|
|
1771 size = b->end - b->start;
|
|
|
1772
|
|
|
1773 if (b->pos == NULL) {
|
|
4
|
1774
|
|
|
1775 /*
|
|
|
1776 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
1777 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
1778 * to keep the buffer size.
|
|
|
1779 */
|
|
|
1780
|
|
0
|
1781 if (!(b->pos = ngx_palloc(c->pool, size))) {
|
|
|
1782 ngx_http_close_connection(c);
|
|
|
1783 return;
|
|
|
1784 }
|
|
|
1785
|
|
|
1786 b->start = b->pos;
|
|
|
1787 b->last = b->pos;
|
|
|
1788 b->end = b->pos + size;
|
|
|
1789 }
|
|
|
1790
|
|
|
1791 /*
|
|
|
1792 * MSIE closes a keepalive connection with RST flag
|
|
|
1793 * so we ignore ECONNRESET here.
|
|
|
1794 */
|
|
|
1795
|
|
|
1796 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
1797 ngx_set_socket_errno(0);
|
|
|
1798
|
|
|
1799 n = c->recv(c, b->last, size);
|
|
|
1800 c->log_error = NGX_ERROR_INFO;
|
|
|
1801
|
|
|
1802 if (n == NGX_AGAIN) {
|
|
|
1803 return;
|
|
|
1804 }
|
|
|
1805
|
|
|
1806 if (n == NGX_ERROR) {
|
|
|
1807 ngx_http_close_connection(c);
|
|
|
1808 return;
|
|
|
1809 }
|
|
|
1810
|
|
|
1811 rev->log->handler = NULL;
|
|
|
1812
|
|
|
1813 if (n == 0) {
|
|
|
1814 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
10
|
1815 "client %V closed keepalive connection", ctx->client);
|
|
0
|
1816 ngx_http_close_connection(c);
|
|
|
1817 return;
|
|
|
1818 }
|
|
|
1819
|
|
|
1820 b->last += n;
|
|
|
1821 rev->log->handler = ngx_http_log_error;
|
|
|
1822 ctx->action = "reading client request line";
|
|
|
1823
|
|
|
1824 ngx_http_init_request(rev);
|
|
|
1825 }
|
|
|
1826
|
|
|
1827
|
|
|
1828 static void ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
|
1829 {
|
|
|
1830 ngx_event_t *rev, *wev;
|
|
|
1831 ngx_connection_t *c;
|
|
|
1832 ngx_http_core_loc_conf_t *clcf;
|
|
|
1833
|
|
|
1834 c = r->connection;
|
|
|
1835
|
|
|
1836 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1837
|
|
|
1838 rev = c->read;
|
|
|
1839 rev->event_handler = ngx_http_lingering_close_handler;
|
|
|
1840
|
|
|
1841 r->lingering_time = ngx_time() + clcf->lingering_time / 1000;
|
|
|
1842 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
1843
|
|
|
1844 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1845 ngx_http_close_request(r, 0);
|
|
|
1846 ngx_http_close_connection(c);
|
|
|
1847 return;
|
|
|
1848 }
|
|
|
1849
|
|
|
1850 wev = c->write;
|
|
|
1851 wev->event_handler = ngx_http_empty_handler;
|
|
|
1852
|
|
|
1853 if (wev->active) {
|
|
4
|
1854 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1855 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
1856 == NGX_ERROR)
|
|
|
1857 {
|
|
|
1858 ngx_http_close_connection(c);
|
|
|
1859 return;
|
|
|
1860 }
|
|
|
1861
|
|
|
1862 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
1863 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1864 ngx_http_close_connection(c);
|
|
|
1865 return;
|
|
|
1866 }
|
|
|
1867 }
|
|
|
1868 }
|
|
|
1869
|
|
|
1870 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
1871 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1872 ngx_shutdown_socket_n " failed");
|
|
|
1873 ngx_http_close_request(r, 0);
|
|
|
1874 ngx_http_close_connection(c);
|
|
|
1875 return;
|
|
|
1876 }
|
|
|
1877
|
|
|
1878 if (rev->ready) {
|
|
|
1879 ngx_http_lingering_close_handler(rev);
|
|
|
1880 }
|
|
|
1881 }
|
|
|
1882
|
|
|
1883
|
|
|
1884 static void ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
|
1885 {
|
|
|
1886 ssize_t n;
|
|
|
1887 ngx_msec_t timer;
|
|
|
1888 ngx_connection_t *c;
|
|
|
1889 ngx_http_request_t *r;
|
|
|
1890 ngx_http_core_loc_conf_t *clcf;
|
|
|
1891 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
1892
|
|
|
1893 c = rev->data;
|
|
|
1894 r = c->data;
|
|
|
1895
|
|
|
1896 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1897 "http lingering close handler");
|
|
|
1898
|
|
|
1899 if (rev->timedout) {
|
|
|
1900 ngx_http_close_request(r, 0);
|
|
|
1901 ngx_http_close_connection(c);
|
|
|
1902 return;
|
|
|
1903 }
|
|
|
1904
|
|
|
1905 timer = r->lingering_time - ngx_time();
|
|
|
1906 if (timer <= 0) {
|
|
|
1907 ngx_http_close_request(r, 0);
|
|
|
1908 ngx_http_close_connection(c);
|
|
|
1909 return;
|
|
|
1910 }
|
|
|
1911
|
|
|
1912 do {
|
|
|
1913 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
1914
|
|
|
1915 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
1916
|
|
|
1917 if (n == NGX_ERROR || n == 0) {
|
|
|
1918 ngx_http_close_request(r, 0);
|
|
|
1919 ngx_http_close_connection(c);
|
|
|
1920 return;
|
|
|
1921 }
|
|
|
1922
|
|
|
1923 } while (rev->ready);
|
|
|
1924
|
|
|
1925 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1926
|
|
|
1927 timer *= 1000;
|
|
|
1928
|
|
|
1929 if (timer > clcf->lingering_timeout) {
|
|
|
1930 timer = clcf->lingering_timeout;
|
|
|
1931 }
|
|
|
1932
|
|
|
1933 ngx_add_timer(rev, timer);
|
|
|
1934
|
|
|
1935 return;
|
|
|
1936 }
|
|
|
1937
|
|
|
1938
|
|
|
1939 void ngx_http_empty_handler(ngx_event_t *wev)
|
|
|
1940 {
|
|
|
1941 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
1942
|
|
|
1943 return;
|
|
|
1944 }
|
|
|
1945
|
|
|
1946
|
|
|
1947 ngx_int_t ngx_http_send_last(ngx_http_request_t *r)
|
|
|
1948 {
|
|
|
1949 ngx_buf_t *b;
|
|
|
1950 ngx_chain_t out;
|
|
|
1951
|
|
|
1952 if (!(b = ngx_calloc_buf(r->pool))) {
|
|
|
1953 return NGX_ERROR;
|
|
|
1954 }
|
|
|
1955
|
|
|
1956 b->last_buf = 1;
|
|
|
1957 out.buf = b;
|
|
|
1958 out.next = NULL;
|
|
|
1959
|
|
|
1960 return ngx_http_output_filter(r, &out);
|
|
|
1961 }
|
|
|
1962
|
|
|
1963
|
|
|
1964 void ngx_http_close_request(ngx_http_request_t *r, int error)
|
|
|
1965 {
|
|
|
1966 ngx_uint_t i;
|
|
|
1967 ngx_log_t *log;
|
|
|
1968 ngx_http_log_ctx_t *ctx;
|
|
|
1969 ngx_http_cleanup_t *cleanup;
|
|
|
1970 ngx_http_core_loc_conf_t *clcf;
|
|
|
1971 struct linger l;
|
|
|
1972
|
|
|
1973 log = r->connection->log;
|
|
|
1974
|
|
|
1975 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
1976
|
|
|
1977 if (r->pool == NULL) {
|
|
|
1978 ngx_log_error(NGX_LOG_ALERT, log, 0,
|
|
|
1979 "http request already closed");
|
|
|
1980 return;
|
|
|
1981 }
|
|
|
1982
|
|
|
1983 #if (NGX_STAT_STUB)
|
|
|
1984 if (r->stat_reading) {
|
|
|
1985 (*ngx_stat_reading)--;
|
|
|
1986 }
|
|
|
1987
|
|
|
1988 if (r->stat_writing) {
|
|
|
1989 (*ngx_stat_writing)--;
|
|
|
1990 }
|
|
|
1991 #endif
|
|
|
1992
|
|
|
1993 if (error && r->headers_out.status == 0) {
|
|
|
1994 r->headers_out.status = error;
|
|
|
1995 }
|
|
|
1996
|
|
|
1997 ngx_http_log_handler(r);
|
|
|
1998
|
|
|
1999 cleanup = r->cleanup.elts;
|
|
|
2000 for (i = 0; i < r->cleanup.nelts; i++) {
|
|
|
2001 if (!cleanup[i].valid) {
|
|
|
2002 continue;
|
|
|
2003 }
|
|
|
2004
|
|
|
2005 #if (NGX_HTTP_CACHE)
|
|
|
2006
|
|
|
2007 if (cleanup[i].cache) {
|
|
|
2008 ngx_http_cache_unlock(cleanup[i].data.cache.hash,
|
|
|
2009 cleanup[i].data.cache.cache, log);
|
|
|
2010 continue;
|
|
|
2011 }
|
|
|
2012
|
|
|
2013 #endif
|
|
|
2014
|
|
|
2015 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http cleanup fd: %d",
|
|
|
2016 cleanup[i].data.file.fd);
|
|
|
2017
|
|
|
2018 if (ngx_close_file(cleanup[i].data.file.fd) == NGX_FILE_ERROR) {
|
|
|
2019 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
|
2020 ngx_close_file_n " \"%s\" failed",
|
|
|
2021 cleanup[i].data.file.name);
|
|
|
2022 }
|
|
|
2023 }
|
|
|
2024
|
|
|
2025 /* STUB */
|
|
|
2026 if (r->file.fd != NGX_INVALID_FILE) {
|
|
|
2027 if (ngx_close_file(r->file.fd) == NGX_FILE_ERROR) {
|
|
|
2028 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
10
|
2029 ngx_close_file_n " \"%V\" failed", &r->file.name);
|
|
0
|
2030 }
|
|
|
2031 }
|
|
|
2032
|
|
|
2033 if (r->request_body
|
|
|
2034 && r->request_body->temp_file
|
|
|
2035 && r->request_body->temp_file->file.fd != NGX_INVALID_FILE)
|
|
|
2036 {
|
|
|
2037 if (ngx_close_file(r->request_body->temp_file->file.fd)
|
|
|
2038 == NGX_FILE_ERROR)
|
|
|
2039 {
|
|
|
2040 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
10
|
2041 ngx_close_file_n " deleted file \"%V\" failed",
|
|
|
2042 &r->request_body->temp_file->file.name);
|
|
0
|
2043 }
|
|
|
2044 }
|
|
|
2045
|
|
|
2046 if (r->connection->timedout) {
|
|
|
2047 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2048
|
|
|
2049 if (clcf->reset_timedout_connection) {
|
|
|
2050 l.l_onoff = 1;
|
|
|
2051 l.l_linger = 0;
|
|
|
2052
|
|
|
2053 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
|
2054 (const void *) &l, sizeof(struct linger)) == -1)
|
|
|
2055 {
|
|
|
2056 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2057 "setsockopt(SO_LINGER) failed");
|
|
|
2058 }
|
|
|
2059 }
|
|
|
2060 }
|
|
|
2061
|
|
10
|
2062 /* the variuos request strings were allocated from r->pool */
|
|
0
|
2063 ctx = log->data;
|
|
10
|
2064 ctx->request = NULL;
|
|
0
|
2065
|
|
|
2066 r->request_line.len = 0;
|
|
|
2067
|
|
|
2068 ngx_destroy_pool(r->pool);
|
|
|
2069
|
|
|
2070 return;
|
|
|
2071 }
|
|
|
2072
|
|
|
2073
|
|
|
2074 #if (NGX_HTTP_SSL)
|
|
|
2075
|
|
|
2076 void ngx_ssl_close_handler(ngx_event_t *ev)
|
|
|
2077 {
|
|
|
2078 ngx_connection_t *c;
|
|
|
2079
|
|
|
2080 c = ev->data;
|
|
|
2081
|
|
|
2082 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0, "http ssl close handler");
|
|
|
2083
|
|
|
2084 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2085 return;
|
|
|
2086 }
|
|
|
2087
|
|
|
2088 ngx_http_close_connection(c);
|
|
|
2089 }
|
|
|
2090
|
|
|
2091 #endif
|
|
|
2092
|
|
|
2093
|
|
|
2094 void ngx_http_close_connection(ngx_connection_t *c)
|
|
|
2095 {
|
|
|
2096 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2097 "close http connection: %d", c->fd);
|
|
|
2098
|
|
2
|
2099 #if (NGX_OPENSSL)
|
|
|
2100
|
|
|
2101 if (c->ssl) {
|
|
|
2102 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2103 c->read->event_handler = ngx_ssl_close_handler;
|
|
|
2104 c->write->event_handler = ngx_ssl_close_handler;
|
|
|
2105 return;
|
|
|
2106 }
|
|
|
2107 }
|
|
|
2108
|
|
|
2109 #endif
|
|
|
2110
|
|
0
|
2111 #if (NGX_STAT_STUB)
|
|
|
2112 (*ngx_stat_active)--;
|
|
|
2113 #endif
|
|
|
2114
|
|
|
2115 ngx_close_connection(c);
|
|
|
2116 }
|
|
|
2117
|
|
|
2118
|
|
|
2119 static void ngx_http_client_error(ngx_http_request_t *r,
|
|
|
2120 int client_error, int error)
|
|
|
2121 {
|
|
10
|
2122 u_char *p;
|
|
0
|
2123 ngx_http_log_ctx_t *ctx;
|
|
|
2124 ngx_http_core_srv_conf_t *cscf;
|
|
|
2125
|
|
|
2126 ctx = r->connection->log->data;
|
|
|
2127
|
|
|
2128 if (error == NGX_HTTP_REQUEST_TIME_OUT) {
|
|
|
2129 ngx_log_error(NGX_LOG_INFO, r->connection->log, NGX_ETIMEDOUT,
|
|
|
2130 "client timed out");
|
|
|
2131 r->connection->timedout = 1;
|
|
|
2132 ngx_http_close_request(r, error);
|
|
|
2133 ngx_http_close_connection(r->connection);
|
|
|
2134 return;
|
|
|
2135 }
|
|
|
2136
|
|
|
2137 r->connection->log->handler = NULL;
|
|
|
2138
|
|
10
|
2139 if (ctx->request) {
|
|
|
2140
|
|
0
|
2141 switch (client_error) {
|
|
|
2142
|
|
|
2143 case NGX_HTTP_PARSE_INVALID_HOST:
|
|
|
2144 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
10
|
2145 "client %V sent invalid \"Host\" header \"%V\", URL: \"%V\"",
|
|
|
2146 ctx->client, &r->headers_in.host->value,
|
|
|
2147 &ctx->request->unparsed_uri);
|
|
0
|
2148
|
|
|
2149 error = NGX_HTTP_INVALID_HOST;
|
|
|
2150
|
|
|
2151 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
2152
|
|
|
2153 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_CLOSE) {
|
|
|
2154 ngx_http_close_request(r, error);
|
|
|
2155 ngx_http_close_connection(r->connection);
|
|
|
2156 return;
|
|
|
2157 }
|
|
|
2158
|
|
|
2159 break;
|
|
|
2160
|
|
|
2161 case NGX_HTTP_PARSE_HTTP_TO_HTTPS:
|
|
|
2162 error = NGX_HTTP_TO_HTTPS;
|
|
10
|
2163 if (ctx->request->headers_in.referer) {
|
|
|
2164 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2165 "client %V sent plain HTTP request to HTTPS port, "
|
|
|
2166 "URL: \"%V\", referrer \"%V\"",
|
|
|
2167 ctx->client, &ctx->request->unparsed_uri,
|
|
|
2168 &ctx->request->headers_in.referer->value);
|
|
|
2169
|
|
|
2170 } else {
|
|
|
2171 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2172 "client %V sent plain HTTP request to HTTPS port, "
|
|
|
2173 "URL: \"%V\"", ctx->client, &ctx->request->unparsed_uri);
|
|
|
2174 }
|
|
|
2175
|
|
|
2176 break;
|
|
0
|
2177
|
|
|
2178 default:
|
|
|
2179 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2180 client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
|
|
10
|
2181 ctx->client, &ctx->request->unparsed_uri);
|
|
0
|
2182 }
|
|
|
2183
|
|
|
2184 } else {
|
|
10
|
2185
|
|
0
|
2186 if (error == NGX_HTTP_REQUEST_URI_TOO_LARGE) {
|
|
|
2187 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
2188 r->request_line.data = r->request_start;
|
|
10
|
2189
|
|
|
2190 } else {
|
|
|
2191 if (r->request_line.data == NULL) {
|
|
|
2192 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2193 if (*p == CR || *p == LF) {
|
|
|
2194 break;
|
|
|
2195 }
|
|
|
2196 }
|
|
|
2197
|
|
|
2198 r->request_line.len = p - r->request_start;
|
|
|
2199 r->request_line.data = r->request_start;
|
|
|
2200 }
|
|
0
|
2201 }
|
|
|
2202
|
|
|
2203 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2204 client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
|
|
10
|
2205 ctx->client, &r->request_line);
|
|
0
|
2206 }
|
|
|
2207
|
|
|
2208 r->connection->log->handler = ngx_http_log_error;
|
|
|
2209
|
|
|
2210 ngx_http_finalize_request(r, error);
|
|
|
2211 }
|
|
|
2212
|
|
|
2213
|
|
10
|
2214 static u_char *ngx_http_log_error(void *data, u_char *buf, size_t len)
|
|
0
|
2215 {
|
|
|
2216 ngx_http_log_ctx_t *ctx = data;
|
|
|
2217
|
|
10
|
2218 u_char *p;
|
|
|
2219
|
|
|
2220 p = buf;
|
|
|
2221
|
|
|
2222 if (ctx->action) {
|
|
|
2223 p = ngx_snprintf(p, len, " while %s", ctx->action);
|
|
|
2224 len -= p - buf;
|
|
|
2225 }
|
|
|
2226
|
|
|
2227 p = ngx_snprintf(p, len, ", client: %V", ctx->client);
|
|
|
2228
|
|
|
2229 if (ctx->request == NULL) {
|
|
|
2230 return p;
|
|
0
|
2231 }
|
|
10
|
2232
|
|
|
2233 len -= p - buf;
|
|
|
2234
|
|
|
2235 p = ngx_snprintf(p, len, ", URL: \"%V\"", &ctx->request->unparsed_uri);
|
|
|
2236
|
|
|
2237 if (ctx->request->headers_in.referer == NULL) {
|
|
|
2238 return p;
|
|
|
2239 }
|
|
|
2240
|
|
|
2241 len -= p - buf;
|
|
|
2242
|
|
|
2243 return ngx_snprintf(p, len, ", referrer: \"%V\"",
|
|
|
2244 &ctx->request->headers_in.referer->value);
|
|
0
|
2245 }
|
