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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
|
|
18
|
535
|
|
2
|
536 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
537
|
|
|
538 if (!(r->uri.data = ngx_palloc(r->pool, r->uri.len + 1))) {
|
|
|
539 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
540 ngx_http_close_connection(c);
|
|
|
541 return;
|
|
|
542 }
|
|
|
543
|
|
0
|
544 rc = ngx_http_parse_complex_uri(r);
|
|
|
545
|
|
|
546 if (rc == NGX_HTTP_INTERNAL_SERVER_ERROR) {
|
|
|
547 ngx_http_close_request(r, rc);
|
|
|
548 ngx_http_close_connection(c);
|
|
|
549 return;
|
|
|
550 }
|
|
|
551
|
|
|
552 if (rc != NGX_OK) {
|
|
|
553 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
554 return;
|
|
|
555 }
|
|
|
556
|
|
|
557 } else {
|
|
10
|
558 r->uri.data = r->uri_start;
|
|
0
|
559 }
|
|
|
560
|
|
18
|
561
|
|
10
|
562 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
563 r->unparsed_uri.data = r->uri_start;
|
|
|
564
|
|
0
|
565
|
|
|
566 if (r->method == 0) {
|
|
|
567 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
568 r->method_name.data = r->request_line.data;
|
|
|
569 }
|
|
|
570
|
|
10
|
571
|
|
0
|
572 if (r->uri_ext) {
|
|
|
573 if (r->args_start) {
|
|
|
574 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
575 } else {
|
|
|
576 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
577 }
|
|
|
578
|
|
10
|
579 r->exten.data = r->uri_ext;
|
|
0
|
580 }
|
|
|
581
|
|
10
|
582
|
|
0
|
583 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
584 r->args.len = r->uri_end - r->args_start;
|
|
10
|
585 r->args.data = r->args_start;
|
|
0
|
586 }
|
|
|
587
|
|
10
|
588
|
|
|
589 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
590 "http request line: \"%V\"", &r->request_line);
|
|
|
591
|
|
0
|
592 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
593 "http uri: \"%V\"", &r->uri);
|
|
0
|
594
|
|
|
595 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
596 "http args: \"%V\"", &r->args);
|
|
0
|
597
|
|
|
598 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
599 "http exten: \"%V\"", &r->exten);
|
|
|
600
|
|
|
601 ctx = c->log->data;
|
|
|
602 ctx->request = r;
|
|
0
|
603
|
|
|
604 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
|
605 rev->event_handler = ngx_http_block_read;
|
|
|
606 ngx_http_handler(r);
|
|
|
607 return;
|
|
|
608 }
|
|
|
609
|
|
|
610
|
|
|
611 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
|
612 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
|
613 {
|
|
|
614 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
615 ngx_http_close_connection(c);
|
|
|
616 return;
|
|
|
617 }
|
|
|
618
|
|
|
619
|
|
|
620 if (ngx_array_init(&r->headers_in.cookies, r->pool, 5,
|
|
|
621 sizeof(ngx_table_elt_t *)) == NGX_ERROR)
|
|
|
622 {
|
|
|
623 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
624 ngx_http_close_connection(c);
|
|
|
625 return;
|
|
|
626 }
|
|
|
627
|
|
|
628 ctx->action = "reading client request headers";
|
|
|
629
|
|
|
630 rev->event_handler = ngx_http_process_request_headers;
|
|
|
631 ngx_http_process_request_headers(rev);
|
|
|
632
|
|
|
633 return;
|
|
|
634
|
|
|
635 } else if (rc != NGX_AGAIN) {
|
|
|
636
|
|
|
637 /* there was error while a request line parsing */
|
|
|
638
|
|
10
|
639 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
640
|
|
|
641 #if 0
|
|
0
|
642 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
643 if (*p == CR || *p == LF) {
|
|
|
644 break;
|
|
|
645 }
|
|
|
646 }
|
|
|
647
|
|
|
648 r->request_line.len = p - r->request_start;
|
|
|
649 r->request_line.data = r->request_start;
|
|
|
650
|
|
|
651 if (rc == NGX_HTTP_PARSE_INVALID_METHOD) {
|
|
|
652 r->http_version = NGX_HTTP_VERSION_10;
|
|
|
653 }
|
|
|
654
|
|
|
655 ngx_http_client_error(r, rc,
|
|
|
656 (rc == NGX_HTTP_PARSE_INVALID_METHOD) ?
|
|
|
657 NGX_HTTP_NOT_IMPLEMENTED:
|
|
|
658 NGX_HTTP_BAD_REQUEST);
|
|
10
|
659 #endif
|
|
|
660
|
|
0
|
661 return;
|
|
|
662 }
|
|
|
663
|
|
|
664 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
665
|
|
|
666 if (r->header_in->pos == r->header_in->end) {
|
|
|
667
|
|
|
668 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
669
|
|
|
670 if (rv == NGX_ERROR) {
|
|
|
671 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
672 ngx_http_close_connection(c);
|
|
|
673 return;
|
|
|
674 }
|
|
|
675
|
|
|
676 if (rv == NGX_DECLINED) {
|
|
|
677 ngx_http_client_error(r, NGX_HTTP_PARSE_TOO_LONG_URI,
|
|
|
678 NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
|
679 return;
|
|
|
680 }
|
|
|
681 }
|
|
|
682 }
|
|
|
683 }
|
|
|
684
|
|
|
685
|
|
|
686 static void ngx_http_process_request_headers(ngx_event_t *rev)
|
|
|
687 {
|
|
|
688 ssize_t n;
|
|
|
689 ngx_int_t rc, rv, i;
|
|
|
690 ngx_table_elt_t *h, **cookie;
|
|
|
691 ngx_connection_t *c;
|
|
|
692 ngx_http_request_t *r;
|
|
|
693
|
|
|
694 c = rev->data;
|
|
|
695 r = c->data;
|
|
|
696
|
|
|
697 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
698 "http process request header line");
|
|
|
699
|
|
|
700 if (rev->timedout) {
|
|
|
701 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
702 return;
|
|
|
703 }
|
|
|
704
|
|
|
705 rc = NGX_AGAIN;
|
|
|
706
|
|
|
707 for ( ;; ) {
|
|
|
708
|
|
|
709 if (rc == NGX_AGAIN) {
|
|
|
710
|
|
|
711 if (r->header_in->pos == r->header_in->end) {
|
|
|
712
|
|
|
713 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
714
|
|
|
715 if (rv == NGX_ERROR) {
|
|
|
716 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
717 ngx_http_close_connection(c);
|
|
|
718 return;
|
|
|
719 }
|
|
|
720
|
|
|
721 if (rv == NGX_DECLINED) {
|
|
|
722 ngx_http_client_error(r, NGX_HTTP_PARSE_TOO_LONG_HEADER,
|
|
|
723 NGX_HTTP_BAD_REQUEST);
|
|
|
724 return;
|
|
|
725 }
|
|
|
726 }
|
|
|
727
|
|
|
728 n = ngx_http_read_request_header(r);
|
|
|
729
|
|
|
730 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
731 return;
|
|
|
732 }
|
|
|
733 }
|
|
|
734
|
|
|
735 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
736
|
|
|
737 if (rc == NGX_OK) {
|
|
|
738
|
|
|
739 /* a header line has been parsed successfully */
|
|
|
740
|
|
|
741 r->headers_n++;
|
|
|
742
|
|
|
743 if (!(h = ngx_list_push(&r->headers_in.headers))) {
|
|
|
744 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
745 ngx_http_close_connection(c);
|
|
|
746 return;
|
|
|
747 }
|
|
|
748
|
|
|
749 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
750 h->key.data = r->header_name_start;
|
|
|
751 h->key.data[h->key.len] = '\0';
|
|
|
752
|
|
|
753 h->value.len = r->header_end - r->header_start;
|
|
|
754 h->value.data = r->header_start;
|
|
|
755 h->value.data[h->value.len] = '\0';
|
|
|
756
|
|
|
757 if (h->key.len == sizeof("Cookie") - 1
|
|
|
758 && ngx_strcasecmp(h->key.data, "Cookie") == 0)
|
|
|
759 {
|
|
|
760 if (!(cookie = ngx_array_push(&r->headers_in.cookies))) {
|
|
|
761 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
762 ngx_http_close_connection(c);
|
|
|
763 return;
|
|
|
764 }
|
|
|
765
|
|
|
766 *cookie = h;
|
|
|
767
|
|
|
768 } else {
|
|
|
769
|
|
|
770 for (i = 0; ngx_http_headers_in[i].name.len != 0; i++) {
|
|
|
771 if (ngx_http_headers_in[i].name.len != h->key.len) {
|
|
|
772 continue;
|
|
|
773 }
|
|
|
774
|
|
|
775 if (ngx_strcasecmp(ngx_http_headers_in[i].name.data,
|
|
|
776 h->key.data) == 0)
|
|
|
777 {
|
|
|
778 *((ngx_table_elt_t **) ((char *) &r->headers_in
|
|
|
779 + ngx_http_headers_in[i].offset)) = h;
|
|
|
780 break;
|
|
|
781 }
|
|
|
782 }
|
|
|
783 }
|
|
|
784
|
|
|
785 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
786 "http header: \"%V: %V\"",
|
|
|
787 &h->key, &h->value);
|
|
0
|
788
|
|
|
789 continue;
|
|
|
790
|
|
|
791 } else if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
|
792
|
|
|
793 /* a whole header has been parsed successfully */
|
|
|
794
|
|
|
795 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
796 "http header done");
|
|
|
797
|
|
24
|
798 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
799
|
|
0
|
800 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
801
|
|
|
802 rc = ngx_http_process_request_header(r);
|
|
|
803
|
|
|
804 if (rc != NGX_OK) {
|
|
|
805 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
806 return;
|
|
|
807 }
|
|
|
808
|
|
|
809 if (rev->timer_set) {
|
|
|
810 ngx_del_timer(rev);
|
|
|
811 }
|
|
|
812
|
|
|
813 #if (NGX_STAT_STUB)
|
|
|
814 (*ngx_stat_reading)--;
|
|
|
815 r->stat_reading = 0;
|
|
|
816 (*ngx_stat_writing)++;
|
|
|
817 r->stat_writing = 1;
|
|
|
818 #endif
|
|
|
819
|
|
|
820 rev->event_handler = ngx_http_block_read;
|
|
|
821 ngx_http_handler(r);
|
|
|
822 return;
|
|
|
823
|
|
|
824 } else if (rc != NGX_AGAIN) {
|
|
|
825
|
|
|
826 /* there was error while a header line parsing */
|
|
|
827
|
|
|
828 #if (NGX_DEBUG)
|
|
|
829 if (rc == NGX_HTTP_PARSE_INVALID_HEADER
|
|
|
830 && (rev->log->log_level & NGX_LOG_DEBUG_HTTP))
|
|
|
831 {
|
|
|
832 u_char *p;
|
|
|
833 for (p = r->header_name_start;
|
|
|
834 p < r->header_in->last - 1;
|
|
|
835 p++)
|
|
|
836 {
|
|
|
837 if (*p == LF) {
|
|
|
838 break;
|
|
|
839 }
|
|
|
840 }
|
|
|
841 *p = '\0';
|
|
|
842 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
843 "http invalid header: \"%s\"",
|
|
|
844 r->header_name_start);
|
|
|
845 }
|
|
|
846 #endif
|
|
|
847
|
|
|
848 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
849 return;
|
|
|
850 }
|
|
|
851
|
|
|
852 /* NGX_AGAIN: a header line parsing is still not complete */
|
|
|
853
|
|
|
854 }
|
|
|
855 }
|
|
|
856
|
|
|
857
|
|
|
858 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r)
|
|
|
859 {
|
|
|
860 ssize_t n;
|
|
|
861 ngx_event_t *rev;
|
|
|
862 ngx_http_core_srv_conf_t *cscf;
|
|
|
863
|
|
|
864 rev = r->connection->read;
|
|
|
865
|
|
|
866 n = r->header_in->last - r->header_in->pos;
|
|
|
867
|
|
|
868 if (n > 0) {
|
|
|
869 return n;
|
|
|
870 }
|
|
|
871
|
|
|
872 if (!rev->ready) {
|
|
|
873 return NGX_AGAIN;
|
|
|
874 }
|
|
|
875
|
|
|
876 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
877 r->header_in->end - r->header_in->last);
|
|
|
878
|
|
|
879 if (n == NGX_AGAIN) {
|
|
|
880 if (!r->header_timeout_set) {
|
|
|
881 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
882 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
883 r->header_timeout_set = 1;
|
|
|
884 }
|
|
|
885
|
|
|
886 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
887 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
888 ngx_http_close_connection(r->connection);
|
|
|
889 return NGX_ERROR;
|
|
|
890 }
|
|
|
891
|
|
|
892 return NGX_AGAIN;
|
|
|
893 }
|
|
|
894
|
|
|
895 if (n == 0) {
|
|
|
896 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
897 "client closed prematurely connection");
|
|
|
898 }
|
|
|
899
|
|
|
900 if (n == 0 || n == NGX_ERROR) {
|
|
|
901 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
902 ngx_http_close_connection(r->connection);
|
|
|
903 return NGX_ERROR;
|
|
|
904 }
|
|
|
905
|
|
|
906 r->header_in->last += n;
|
|
|
907
|
|
|
908 return n;
|
|
|
909 }
|
|
|
910
|
|
|
911
|
|
|
912 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
913 ngx_uint_t request_line)
|
|
|
914 {
|
|
|
915 u_char *old, *new;
|
|
|
916 ngx_buf_t *b;
|
|
|
917 ngx_http_connection_t *hc;
|
|
|
918 ngx_http_core_srv_conf_t *cscf;
|
|
|
919
|
|
|
920 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
921 "http alloc large header buffer");
|
|
|
922
|
|
|
923 if (request_line && r->state == 0) {
|
|
|
924
|
|
|
925 /* the client fills up the buffer with "\r\n" */
|
|
|
926
|
|
24
|
927 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
928
|
|
0
|
929 r->header_in->pos = r->header_in->start;
|
|
|
930 r->header_in->last = r->header_in->start;
|
|
|
931
|
|
|
932 return NGX_OK;
|
|
|
933 }
|
|
|
934
|
|
|
935 old = request_line ? r->request_start : r->header_name_start;
|
|
|
936
|
|
|
937 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
938
|
|
|
939 if (r->state != 0
|
|
|
940 && (size_t) (r->header_in->pos - old)
|
|
|
941 >= cscf->large_client_header_buffers.size)
|
|
|
942 {
|
|
|
943 return NGX_DECLINED;
|
|
|
944 }
|
|
|
945
|
|
|
946 hc = r->http_connection;
|
|
|
947
|
|
|
948 if (hc->nfree) {
|
|
|
949 b = hc->free[--hc->nfree];
|
|
|
950
|
|
|
951 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
952 "http large header free: %p %uz",
|
|
0
|
953 b->pos, b->end - b->last);
|
|
|
954
|
|
|
955 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
956
|
|
|
957 if (hc->busy == NULL) {
|
|
|
958 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
959 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
960 if (hc->busy == NULL) {
|
|
|
961 return NGX_ERROR;
|
|
|
962 }
|
|
|
963 }
|
|
|
964
|
|
|
965 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
966 cscf->large_client_header_buffers.size);
|
|
|
967 if (b == NULL) {
|
|
|
968 return NGX_ERROR;
|
|
|
969 }
|
|
|
970
|
|
|
971 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
972 "http large header alloc: %p %uz",
|
|
0
|
973 b->pos, b->end - b->last);
|
|
|
974
|
|
|
975 } else {
|
|
|
976 return NGX_DECLINED;
|
|
|
977 }
|
|
|
978
|
|
|
979 hc->busy[hc->nbusy++] = b;
|
|
|
980
|
|
|
981 if (r->state == 0) {
|
|
|
982 /*
|
|
|
983 * r->state == 0 means that a header line was parsed successfully
|
|
|
984 * and we do not need to copy incomplete header line and
|
|
|
985 * to relocate the parser header pointers
|
|
|
986 */
|
|
|
987
|
|
24
|
988 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
989
|
|
0
|
990 r->header_in = b;
|
|
|
991
|
|
|
992 return NGX_OK;
|
|
|
993 }
|
|
|
994
|
|
|
995 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
996 "http large header copy: %d", r->header_in->pos - old);
|
|
|
997
|
|
24
|
998 r->request_length += old - r->header_in->start;
|
|
|
999
|
|
0
|
1000 new = b->start;
|
|
|
1001
|
|
|
1002 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1003
|
|
|
1004 b->pos = new + (r->header_in->pos - old);
|
|
|
1005 b->last = new + (r->header_in->pos - old);
|
|
|
1006
|
|
|
1007 if (request_line) {
|
|
|
1008 r->request_start = new;
|
|
|
1009
|
|
|
1010 if (r->request_end) {
|
|
|
1011 r->request_end = new + (r->request_end - old);
|
|
|
1012 }
|
|
|
1013
|
|
|
1014 r->method_end = new + (r->method_end - old);
|
|
|
1015
|
|
|
1016 r->uri_start = new + (r->uri_start - old);
|
|
|
1017 r->uri_end = new + (r->uri_end - old);
|
|
|
1018
|
|
|
1019 if (r->schema_start) {
|
|
|
1020 r->schema_start = new + (r->schema_start - old);
|
|
|
1021 r->schema_end = new + (r->schema_end - old);
|
|
|
1022 }
|
|
|
1023
|
|
|
1024 if (r->host_start) {
|
|
|
1025 r->host_start = new + (r->host_start - old);
|
|
|
1026 r->host_end = new + (r->host_end - old);
|
|
|
1027 }
|
|
|
1028
|
|
|
1029 if (r->port_start) {
|
|
|
1030 r->port_start = new + (r->port_start - old);
|
|
|
1031 r->port_end = new + (r->port_end - old);
|
|
|
1032 }
|
|
|
1033
|
|
|
1034 if (r->uri_ext) {
|
|
|
1035 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1036 }
|
|
|
1037
|
|
|
1038 if (r->args_start) {
|
|
|
1039 r->args_start = new + (r->args_start - old);
|
|
|
1040 }
|
|
|
1041
|
|
|
1042 } else {
|
|
|
1043 r->header_name_start = new;
|
|
|
1044 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1045 r->header_start = new + (r->header_start - old);
|
|
|
1046 r->header_end = new + (r->header_end - old);
|
|
|
1047 }
|
|
|
1048
|
|
|
1049 r->header_in = b;
|
|
|
1050
|
|
|
1051 return NGX_OK;
|
|
|
1052 }
|
|
|
1053
|
|
|
1054
|
|
|
1055 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r)
|
|
|
1056 {
|
|
|
1057 u_char *ua, *user_agent;
|
|
|
1058 size_t len;
|
|
|
1059 ngx_uint_t i;
|
|
|
1060 ngx_http_server_name_t *name;
|
|
|
1061 ngx_http_core_srv_conf_t *cscf;
|
|
|
1062 ngx_http_core_loc_conf_t *clcf;
|
|
|
1063
|
|
|
1064 if (r->headers_in.host) {
|
|
|
1065 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
|
1066 if (r->headers_in.host->value.data[len] == ':') {
|
|
|
1067 break;
|
|
|
1068 }
|
|
|
1069 }
|
|
|
1070 r->headers_in.host_name_len = len;
|
|
|
1071
|
|
|
1072 /* find the name based server configuration */
|
|
|
1073
|
|
|
1074 name = r->virtual_names->elts;
|
|
|
1075 for (i = 0; i < r->virtual_names->nelts; i++) {
|
|
4
|
1076
|
|
|
1077 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1078 "server name: %V", &name[i].name);
|
|
4
|
1079
|
|
|
1080 if (name[i].wildcard) {
|
|
|
1081 if (r->headers_in.host_name_len <= name[i].name.len) {
|
|
|
1082 continue;
|
|
|
1083 }
|
|
|
1084
|
|
|
1085 if (ngx_rstrncasecmp(r->headers_in.host->value.data,
|
|
|
1086 name[i].name.data,
|
|
|
1087 name[i].name.len) == 0)
|
|
|
1088 {
|
|
|
1089 continue;
|
|
|
1090 }
|
|
|
1091
|
|
|
1092 } else {
|
|
|
1093 if (r->headers_in.host_name_len != name[i].name.len) {
|
|
|
1094 continue;
|
|
|
1095 }
|
|
|
1096
|
|
|
1097 if (ngx_strncasecmp(r->headers_in.host->value.data,
|
|
|
1098 name[i].name.data,
|
|
|
1099 name[i].name.len) != 0)
|
|
|
1100 {
|
|
|
1101 continue;
|
|
|
1102 }
|
|
0
|
1103 }
|
|
|
1104
|
|
4
|
1105 r->srv_conf = name[i].core_srv_conf->ctx->srv_conf;
|
|
|
1106 r->loc_conf = name[i].core_srv_conf->ctx->loc_conf;
|
|
6
|
1107
|
|
|
1108 if (name[i].wildcard) {
|
|
|
1109 r->server_name.len = r->headers_in.host_name_len;
|
|
|
1110 r->server_name.data = r->headers_in.host->value.data;
|
|
|
1111
|
|
|
1112 } else {
|
|
|
1113 r->server_name = name[i].name;
|
|
|
1114 }
|
|
4
|
1115
|
|
|
1116 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1117 r->connection->log->file = clcf->err_log->file;
|
|
|
1118
|
|
|
1119 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1120 r->connection->log->log_level = clcf->err_log->log_level;
|
|
0
|
1121 }
|
|
4
|
1122
|
|
|
1123 break;
|
|
0
|
1124 }
|
|
|
1125
|
|
|
1126 if (i == r->virtual_names->nelts) {
|
|
|
1127 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1128
|
|
|
1129 if (cscf->restrict_host_names != NGX_HTTP_RESTRICT_HOST_OFF) {
|
|
|
1130 return NGX_HTTP_PARSE_INVALID_HOST;
|
|
|
1131 }
|
|
|
1132 }
|
|
|
1133
|
|
|
1134 } else {
|
|
|
1135 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
|
1136 return NGX_HTTP_PARSE_NO_HOST_HEADER;
|
|
|
1137 }
|
|
|
1138 r->headers_in.host_name_len = 0;
|
|
|
1139 }
|
|
|
1140
|
|
|
1141 if (r->headers_in.content_length) {
|
|
|
1142 r->headers_in.content_length_n =
|
|
|
1143 ngx_atoi(r->headers_in.content_length->value.data,
|
|
|
1144 r->headers_in.content_length->value.len);
|
|
|
1145
|
|
|
1146 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
|
1147 return NGX_HTTP_PARSE_INVALID_CL_HEADER;
|
|
|
1148 }
|
|
|
1149 }
|
|
|
1150
|
|
|
1151 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n <= 0) {
|
|
|
1152 return NGX_HTTP_PARSE_POST_WO_CL_HEADER;
|
|
|
1153 }
|
|
|
1154
|
|
|
1155 if (r->plain_http) {
|
|
|
1156 return NGX_HTTP_PARSE_HTTP_TO_HTTPS;
|
|
|
1157 }
|
|
|
1158
|
|
|
1159 if (r->headers_in.connection) {
|
|
|
1160 if (r->headers_in.connection->value.len == 5
|
|
|
1161 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
|
1162 == 0)
|
|
|
1163 {
|
|
|
1164 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1165
|
|
|
1166 } else if (r->headers_in.connection->value.len == 10
|
|
|
1167 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
|
1168 "keep-alive") == 0)
|
|
|
1169 {
|
|
|
1170 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1171
|
|
|
1172 if (r->headers_in.keep_alive) {
|
|
|
1173 r->headers_in.keep_alive_n =
|
|
|
1174 ngx_atoi(r->headers_in.keep_alive->value.data,
|
|
|
1175 r->headers_in.keep_alive->value.len);
|
|
|
1176 }
|
|
|
1177 }
|
|
|
1178 }
|
|
|
1179
|
|
|
1180 if (r->headers_in.user_agent) {
|
|
|
1181
|
|
|
1182 /*
|
|
|
1183 * check some widespread browsers while the headers are still
|
|
|
1184 * in CPU cache
|
|
|
1185 */
|
|
|
1186
|
|
|
1187 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1188
|
|
|
1189 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1190
|
|
|
1191 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1192
|
|
|
1193 r->headers_in.msie = 1;
|
|
|
1194
|
|
|
1195 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1196 r->headers_in.msie4 = 1;
|
|
|
1197 }
|
|
|
1198
|
|
|
1199 #if 0
|
|
|
1200 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1201 if (c->ssl) {
|
|
|
1202 r->connection->ssl->no_send_shut = 1;
|
|
|
1203 }
|
|
0
|
1204 #endif
|
|
|
1205 }
|
|
|
1206
|
|
|
1207 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1208 r->headers_in.opera = 1;
|
|
|
1209 r->headers_in.msie = 0;
|
|
|
1210 r->headers_in.msie4 = 0;
|
|
|
1211 }
|
|
|
1212
|
|
|
1213 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1214
|
|
|
1215 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1216 r->headers_in.gecko = 1;
|
|
|
1217
|
|
|
1218 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1219 r->headers_in.konqueror = 1;
|
|
|
1220 }
|
|
|
1221 }
|
|
|
1222 }
|
|
|
1223
|
|
|
1224 return NGX_OK;
|
|
|
1225 }
|
|
|
1226
|
|
|
1227
|
|
|
1228 void ngx_http_finalize_request(ngx_http_request_t *r, int rc)
|
|
|
1229 {
|
|
|
1230 ngx_http_core_loc_conf_t *clcf;
|
|
|
1231
|
|
|
1232 /* r can be already destroyed when rc == NGX_DONE */
|
|
|
1233
|
|
|
1234 if (rc == NGX_DONE || r->main) {
|
|
|
1235 return;
|
|
|
1236 }
|
|
|
1237
|
|
|
1238 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1239 "http finalize request: %d", rc);
|
|
|
1240
|
|
|
1241 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
|
|
|
1242
|
|
|
1243 if (r->connection->read->timer_set) {
|
|
|
1244 ngx_del_timer(r->connection->read);
|
|
|
1245 }
|
|
|
1246
|
|
|
1247 if (r->connection->write->timer_set) {
|
|
|
1248 ngx_del_timer(r->connection->write);
|
|
|
1249 }
|
|
|
1250
|
|
|
1251 if (rc == NGX_HTTP_CLIENT_CLOSED_REQUEST || r->closed) {
|
|
|
1252 ngx_http_close_request(r, 0);
|
|
|
1253 ngx_http_close_connection(r->connection);
|
|
|
1254 return;
|
|
|
1255 }
|
|
|
1256
|
|
|
1257 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1258
|
|
|
1259 return;
|
|
|
1260
|
|
|
1261 } else if (rc == NGX_ERROR) {
|
|
|
1262 ngx_http_close_request(r, 0);
|
|
|
1263 ngx_http_close_connection(r->connection);
|
|
|
1264 return;
|
|
|
1265
|
|
|
1266 } else if (rc == NGX_AGAIN) {
|
|
|
1267 ngx_http_set_write_handler(r);
|
|
|
1268 return;
|
|
|
1269 }
|
|
|
1270
|
|
|
1271 if (r->connection->read->timer_set) {
|
|
|
1272 ngx_del_timer(r->connection->read);
|
|
|
1273 }
|
|
|
1274
|
|
|
1275 if (r->connection->write->timer_set) {
|
|
|
1276 r->connection->write->delayed = 0;
|
|
|
1277 ngx_del_timer(r->connection->write);
|
|
|
1278 }
|
|
|
1279
|
|
|
1280 if (r->connection->read->pending_eof) {
|
|
22
|
1281 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1282 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log,
|
|
|
1283 r->connection->read->kq_errno,
|
|
|
1284 "kevent() reported about an closed connection");
|
|
|
1285 #endif
|
|
|
1286 ngx_http_close_request(r, 0);
|
|
|
1287 ngx_http_close_connection(r->connection);
|
|
|
1288 return;
|
|
|
1289 }
|
|
|
1290
|
|
|
1291 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1292
|
|
|
1293 if (!ngx_terminate
|
|
|
1294 && !ngx_exiting
|
|
|
1295 && r->keepalive != 0
|
|
|
1296 && clcf->keepalive_timeout > 0)
|
|
|
1297 {
|
|
|
1298 ngx_http_set_keepalive(r);
|
|
|
1299 return;
|
|
|
1300
|
|
|
1301 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1302 ngx_http_set_lingering_close(r);
|
|
|
1303 return;
|
|
|
1304 }
|
|
|
1305
|
|
|
1306 ngx_http_close_request(r, 0);
|
|
|
1307 ngx_http_close_connection(r->connection);
|
|
|
1308 }
|
|
|
1309
|
|
|
1310
|
|
|
1311 static void ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
|
1312 {
|
|
|
1313 ngx_event_t *wev;
|
|
|
1314 ngx_http_core_loc_conf_t *clcf;
|
|
|
1315
|
|
|
1316 wev = r->connection->write;
|
|
|
1317 wev->event_handler = ngx_http_writer;
|
|
|
1318
|
|
|
1319 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1320
|
|
|
1321 if (wev->ready && wev->delayed) {
|
|
|
1322 return;
|
|
|
1323 }
|
|
|
1324
|
|
|
1325 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1326 ngx_http_core_module);
|
|
|
1327 if (!wev->delayed) {
|
|
|
1328 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1329 }
|
|
|
1330
|
|
2
|
1331 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1332 ngx_http_close_request(r, 0);
|
|
|
1333 ngx_http_close_connection(r->connection);
|
|
|
1334 }
|
|
|
1335
|
|
|
1336 return;
|
|
|
1337 }
|
|
|
1338
|
|
|
1339
|
|
|
1340 void ngx_http_writer(ngx_event_t *wev)
|
|
|
1341 {
|
|
|
1342 int rc;
|
|
|
1343 ngx_connection_t *c;
|
|
|
1344 ngx_http_request_t *r;
|
|
|
1345 ngx_http_core_loc_conf_t *clcf;
|
|
|
1346
|
|
|
1347 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http writer handler");
|
|
|
1348
|
|
|
1349 c = wev->data;
|
|
|
1350 r = c->data;
|
|
|
1351
|
|
|
1352 if (wev->timedout) {
|
|
|
1353 if (!wev->delayed) {
|
|
|
1354 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
1355 return;
|
|
|
1356 }
|
|
|
1357
|
|
|
1358 wev->timedout = 0;
|
|
|
1359 wev->delayed = 0;
|
|
|
1360
|
|
|
1361 if (!wev->ready) {
|
|
|
1362 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1363 ngx_http_core_module);
|
|
|
1364 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1365
|
|
2
|
1366 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1367 ngx_http_close_request(r, 0);
|
|
|
1368 ngx_http_close_connection(r->connection);
|
|
|
1369 }
|
|
|
1370
|
|
|
1371 return;
|
|
|
1372 }
|
|
|
1373
|
|
|
1374 } else {
|
|
|
1375 if (wev->delayed) {
|
|
|
1376 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1377 "http writer delayed");
|
|
|
1378
|
|
|
1379 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1380 ngx_http_core_module);
|
|
2
|
1381
|
|
|
1382 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1383 ngx_http_close_request(r, 0);
|
|
|
1384 ngx_http_close_connection(r->connection);
|
|
|
1385 }
|
|
|
1386
|
|
|
1387 return;
|
|
|
1388 }
|
|
|
1389 }
|
|
|
1390
|
|
|
1391 rc = ngx_http_output_filter(r, NULL);
|
|
|
1392
|
|
|
1393 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1394 "http writer output filter: %d", rc);
|
|
|
1395
|
|
|
1396 if (rc == NGX_AGAIN) {
|
|
|
1397 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1398 ngx_http_core_module);
|
|
|
1399 if (!wev->ready && !wev->delayed) {
|
|
|
1400 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1401 }
|
|
|
1402
|
|
2
|
1403 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1404 ngx_http_close_request(r, 0);
|
|
|
1405 ngx_http_close_connection(r->connection);
|
|
|
1406 }
|
|
|
1407
|
|
|
1408 return;
|
|
|
1409 }
|
|
|
1410
|
|
|
1411 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http writer done");
|
|
|
1412
|
|
|
1413 ngx_http_finalize_request(r, rc);
|
|
|
1414 }
|
|
|
1415
|
|
|
1416
|
|
|
1417 static void ngx_http_block_read(ngx_event_t *rev)
|
|
|
1418 {
|
|
|
1419 ngx_connection_t *c;
|
|
|
1420 ngx_http_request_t *r;
|
|
|
1421
|
|
|
1422 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http read blocked");
|
|
|
1423
|
|
|
1424 /* aio does not call this handler */
|
|
|
1425
|
|
|
1426 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
|
|
|
1427 if (ngx_del_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
1428 c = rev->data;
|
|
|
1429 r = c->data;
|
|
|
1430 ngx_http_close_request(r, 0);
|
|
|
1431 ngx_http_close_connection(c);
|
|
|
1432 }
|
|
|
1433 }
|
|
|
1434 }
|
|
|
1435
|
|
|
1436
|
|
|
1437 ngx_int_t ngx_http_discard_body(ngx_http_request_t *r)
|
|
|
1438 {
|
|
|
1439 ssize_t size;
|
|
|
1440 ngx_event_t *rev;
|
|
|
1441
|
|
|
1442 rev = r->connection->read;
|
|
|
1443
|
|
|
1444 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
|
1445
|
|
|
1446 if (rev->timer_set) {
|
|
|
1447 ngx_del_timer(rev);
|
|
|
1448 }
|
|
|
1449
|
|
|
1450 if (r->headers_in.content_length_n <= 0) {
|
|
|
1451 return NGX_OK;
|
|
|
1452 }
|
|
|
1453
|
|
|
1454 size = r->header_in->last - r->header_in->pos;
|
|
|
1455
|
|
|
1456 if (size) {
|
|
|
1457 if (r->headers_in.content_length_n > size) {
|
|
|
1458 r->headers_in.content_length_n -= size;
|
|
|
1459
|
|
|
1460 } else {
|
|
|
1461 r->header_in->pos += r->headers_in.content_length_n;
|
|
|
1462 r->headers_in.content_length_n = 0;
|
|
|
1463 return NGX_OK;
|
|
|
1464 }
|
|
|
1465 }
|
|
|
1466
|
|
|
1467 rev->event_handler = ngx_http_read_discarded_body_event;
|
|
|
1468
|
|
|
1469 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1470 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1471 }
|
|
|
1472
|
|
|
1473 return ngx_http_read_discarded_body(r);
|
|
|
1474 }
|
|
|
1475
|
|
|
1476
|
|
|
1477 static void ngx_http_read_discarded_body_event(ngx_event_t *rev)
|
|
|
1478 {
|
|
|
1479 ngx_int_t rc;
|
|
|
1480 ngx_connection_t *c;
|
|
|
1481 ngx_http_request_t *r;
|
|
|
1482
|
|
|
1483 c = rev->data;
|
|
|
1484 r = c->data;
|
|
|
1485
|
|
|
1486 rc = ngx_http_read_discarded_body(r);
|
|
|
1487
|
|
|
1488 if (rc == NGX_AGAIN) {
|
|
|
1489 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1490 ngx_http_close_request(r, rc);
|
|
|
1491 ngx_http_close_connection(c);
|
|
|
1492 return;
|
|
|
1493 }
|
|
|
1494 }
|
|
|
1495
|
|
|
1496 if (rc != NGX_OK) {
|
|
|
1497 ngx_http_close_request(r, rc);
|
|
|
1498 ngx_http_close_connection(c);
|
|
|
1499 }
|
|
|
1500 }
|
|
|
1501
|
|
|
1502
|
|
|
1503 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r)
|
|
|
1504 {
|
|
|
1505 ssize_t size, n;
|
|
|
1506 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
|
1507
|
|
|
1508 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1509 "http read discarded body");
|
|
|
1510
|
|
|
1511 if (r->headers_in.content_length_n == 0) {
|
|
|
1512 return NGX_OK;
|
|
|
1513 }
|
|
|
1514
|
|
|
1515
|
|
|
1516 size = r->headers_in.content_length_n;
|
|
|
1517
|
|
|
1518 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
|
1519 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
|
1520 }
|
|
|
1521
|
|
|
1522 n = r->connection->recv(r->connection, buffer, size);
|
|
|
1523
|
|
|
1524 if (n == NGX_ERROR) {
|
|
|
1525
|
|
|
1526 r->closed = 1;
|
|
|
1527
|
|
|
1528 /*
|
|
|
1529 * if a client request body is discarded then we already set
|
|
|
1530 * some HTTP response code for client and we can ignore the error
|
|
|
1531 */
|
|
|
1532
|
|
|
1533 return NGX_OK;
|
|
|
1534 }
|
|
|
1535
|
|
|
1536 if (n == NGX_AGAIN) {
|
|
|
1537 return NGX_AGAIN;
|
|
|
1538 }
|
|
|
1539
|
|
|
1540 r->headers_in.content_length_n -= n;
|
|
|
1541
|
|
|
1542 return NGX_OK;
|
|
|
1543 }
|
|
|
1544
|
|
|
1545
|
|
|
1546 static void ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
|
1547 {
|
|
2
|
1548 int tcp_nodelay;
|
|
0
|
1549 ngx_int_t i;
|
|
|
1550 ngx_buf_t *b, *f;
|
|
|
1551 ngx_event_t *rev, *wev;
|
|
|
1552 ngx_connection_t *c;
|
|
|
1553 ngx_http_connection_t *hc;
|
|
|
1554 ngx_http_log_ctx_t *ctx;
|
|
|
1555 ngx_http_core_srv_conf_t *cscf;
|
|
|
1556 ngx_http_core_loc_conf_t *clcf;
|
|
|
1557
|
|
|
1558 c = r->connection;
|
|
|
1559 rev = c->read;
|
|
|
1560
|
|
|
1561 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1562
|
|
10
|
1563 ctx = c->log->data;
|
|
0
|
1564 ctx->action = "closing request";
|
|
|
1565
|
|
|
1566 hc = r->http_connection;
|
|
|
1567 b = r->header_in;
|
|
|
1568
|
|
|
1569 if (b->pos < b->last) {
|
|
|
1570
|
|
|
1571 /* the pipelined request */
|
|
|
1572
|
|
|
1573 if (b != c->buffer) {
|
|
|
1574
|
|
4
|
1575 /*
|
|
|
1576 * If the large header buffers were allocated while the previous
|
|
|
1577 * request processing then we do not use c->buffer for
|
|
|
1578 * the pipelined request (see ngx_http_init_request()).
|
|
|
1579 *
|
|
|
1580 * Now we would move the large header buffers to the free list.
|
|
|
1581 */
|
|
0
|
1582
|
|
|
1583 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1584
|
|
|
1585 if (hc->free == NULL) {
|
|
|
1586 hc->free = ngx_palloc(c->pool,
|
|
|
1587 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1588
|
|
|
1589 if (hc->free == NULL) {
|
|
|
1590 ngx_http_close_connection(c);
|
|
|
1591 return;
|
|
|
1592 }
|
|
|
1593 }
|
|
|
1594
|
|
|
1595 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1596 f = hc->busy[i];
|
|
|
1597 hc->free[hc->nfree++] = f;
|
|
|
1598 f->pos = f->start;
|
|
|
1599 f->last = f->start;
|
|
|
1600 }
|
|
|
1601
|
|
|
1602 hc->busy[0] = b;
|
|
|
1603 hc->nbusy = 1;
|
|
|
1604 }
|
|
|
1605 }
|
|
|
1606
|
|
|
1607 ngx_http_close_request(r, 0);
|
|
|
1608 c->data = hc;
|
|
|
1609
|
|
|
1610 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1611 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1612
|
|
|
1613 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1614 ngx_http_close_connection(c);
|
|
|
1615 return;
|
|
|
1616 }
|
|
|
1617
|
|
|
1618 wev = c->write;
|
|
|
1619 wev->event_handler = ngx_http_empty_handler;
|
|
|
1620
|
|
|
1621 if (b->pos < b->last) {
|
|
|
1622
|
|
|
1623 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1624
|
|
|
1625 hc->pipeline = 1;
|
|
|
1626 ctx->action = "reading client pipelined request line";
|
|
|
1627 ngx_http_init_request(rev);
|
|
|
1628 return;
|
|
|
1629 }
|
|
|
1630
|
|
|
1631 hc->pipeline = 0;
|
|
|
1632
|
|
4
|
1633 /*
|
|
|
1634 * To keep a memory footprint as small as possible for an idle
|
|
|
1635 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1636 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1637 * The large header buffers are always allocated outside the c->pool and
|
|
|
1638 * are freed too.
|
|
|
1639 */
|
|
|
1640
|
|
0
|
1641 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1642 hc->request = NULL;
|
|
|
1643 }
|
|
|
1644
|
|
|
1645 b = c->buffer;
|
|
|
1646
|
|
|
1647 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1648
|
|
|
1649 /*
|
|
|
1650 * the special note for ngx_http_keepalive_handler() that
|
|
|
1651 * c->buffer's memory was freed
|
|
|
1652 */
|
|
|
1653
|
|
0
|
1654 b->pos = NULL;
|
|
|
1655
|
|
|
1656 } else {
|
|
|
1657 b->pos = b->start;
|
|
|
1658 b->last = b->start;
|
|
|
1659 }
|
|
|
1660
|
|
10
|
1661 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1662 hc->free, hc->nfree);
|
|
|
1663
|
|
|
1664 if (hc->free) {
|
|
|
1665 for (i = 0; i < hc->nfree; i++) {
|
|
|
1666 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1667 hc->free[i] = NULL;
|
|
|
1668 }
|
|
|
1669
|
|
|
1670 hc->nfree = 0;
|
|
|
1671 }
|
|
|
1672
|
|
10
|
1673 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1674 hc->busy, hc->nbusy);
|
|
|
1675
|
|
|
1676 if (hc->busy) {
|
|
|
1677 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1678 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1679 hc->busy[i] = NULL;
|
|
|
1680 }
|
|
|
1681
|
|
|
1682 hc->nbusy = 0;
|
|
|
1683 }
|
|
|
1684
|
|
|
1685 rev->event_handler = ngx_http_keepalive_handler;
|
|
|
1686
|
|
|
1687 if (wev->active) {
|
|
4
|
1688 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1689 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
1690 == NGX_ERROR)
|
|
|
1691 {
|
|
|
1692 ngx_http_close_connection(c);
|
|
|
1693 return;
|
|
|
1694 }
|
|
|
1695
|
|
|
1696 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
1697 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1698 ngx_http_close_connection(c);
|
|
|
1699 return;
|
|
|
1700 }
|
|
|
1701 }
|
|
|
1702 }
|
|
|
1703
|
|
|
1704 ctx->action = "keepalive";
|
|
|
1705
|
|
|
1706 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
|
1707 if (ngx_tcp_push(c->fd) == NGX_ERROR) {
|
|
|
1708 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
1709 ngx_http_close_connection(c);
|
|
|
1710 return;
|
|
|
1711 }
|
|
2
|
1712
|
|
0
|
1713 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
1714 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
1715
|
|
|
1716 } else {
|
|
22
|
1717 tcp_nodelay = 1;
|
|
|
1718 }
|
|
|
1719
|
|
|
1720 if (tcp_nodelay && clcf->tcp_nodelay && !c->tcp_nodelay) {
|
|
|
1721
|
|
|
1722 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1723
|
|
|
1724 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
1725 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
1726 {
|
|
|
1727 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1728 "setsockopt(TCP_NODELAY) failed");
|
|
|
1729 ngx_http_close_connection(c);
|
|
|
1730 return;
|
|
2
|
1731 }
|
|
22
|
1732
|
|
|
1733 c->tcp_nodelay = 1;
|
|
0
|
1734 }
|
|
|
1735
|
|
|
1736 #if 0
|
|
4
|
1737 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
1738 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
1739 #endif
|
|
|
1740
|
|
|
1741 if (rev->ready) {
|
|
|
1742 ngx_http_keepalive_handler(rev);
|
|
|
1743 }
|
|
|
1744 }
|
|
|
1745
|
|
|
1746
|
|
|
1747 static void ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
|
1748 {
|
|
|
1749 size_t size;
|
|
|
1750 ssize_t n;
|
|
|
1751 ngx_buf_t *b;
|
|
|
1752 ngx_connection_t *c;
|
|
|
1753 ngx_http_log_ctx_t *ctx;
|
|
|
1754 ngx_http_connection_t *hc;
|
|
|
1755
|
|
|
1756 c = rev->data;
|
|
|
1757
|
|
|
1758 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
1759
|
|
|
1760 if (rev->timedout) {
|
|
|
1761 ngx_http_close_connection(c);
|
|
|
1762 return;
|
|
|
1763 }
|
|
|
1764
|
|
|
1765 ctx = (ngx_http_log_ctx_t *) rev->log->data;
|
|
|
1766
|
|
18
|
1767 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1768
|
|
4
|
1769 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1770 if (rev->pending_eof) {
|
|
10
|
1771 rev->log->handler = NULL;
|
|
0
|
1772 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
1773 "kevent() reported that client %V closed "
|
|
0
|
1774 "keepalive connection", ctx->client);
|
|
22
|
1775 #if (NGX_HTTP_SSL)
|
|
|
1776 if (c->ssl) {
|
|
|
1777 c->ssl->no_send_shut = 1;
|
|
|
1778 }
|
|
|
1779 #endif
|
|
0
|
1780 ngx_http_close_connection(c);
|
|
|
1781 return;
|
|
|
1782 }
|
|
|
1783 }
|
|
|
1784
|
|
|
1785 #endif
|
|
|
1786
|
|
|
1787 hc = c->data;
|
|
|
1788 b = c->buffer;
|
|
|
1789 size = b->end - b->start;
|
|
|
1790
|
|
|
1791 if (b->pos == NULL) {
|
|
4
|
1792
|
|
|
1793 /*
|
|
|
1794 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
1795 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
1796 * to keep the buffer size.
|
|
|
1797 */
|
|
|
1798
|
|
0
|
1799 if (!(b->pos = ngx_palloc(c->pool, size))) {
|
|
|
1800 ngx_http_close_connection(c);
|
|
|
1801 return;
|
|
|
1802 }
|
|
|
1803
|
|
|
1804 b->start = b->pos;
|
|
|
1805 b->last = b->pos;
|
|
|
1806 b->end = b->pos + size;
|
|
|
1807 }
|
|
|
1808
|
|
|
1809 /*
|
|
|
1810 * MSIE closes a keepalive connection with RST flag
|
|
|
1811 * so we ignore ECONNRESET here.
|
|
|
1812 */
|
|
|
1813
|
|
|
1814 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
1815 ngx_set_socket_errno(0);
|
|
|
1816
|
|
|
1817 n = c->recv(c, b->last, size);
|
|
|
1818 c->log_error = NGX_ERROR_INFO;
|
|
|
1819
|
|
|
1820 if (n == NGX_AGAIN) {
|
|
24
|
1821 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1822 ngx_http_close_connection(c);
|
|
|
1823 }
|
|
|
1824
|
|
0
|
1825 return;
|
|
|
1826 }
|
|
|
1827
|
|
|
1828 if (n == NGX_ERROR) {
|
|
|
1829 ngx_http_close_connection(c);
|
|
|
1830 return;
|
|
|
1831 }
|
|
|
1832
|
|
|
1833 rev->log->handler = NULL;
|
|
|
1834
|
|
|
1835 if (n == 0) {
|
|
|
1836 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
10
|
1837 "client %V closed keepalive connection", ctx->client);
|
|
0
|
1838 ngx_http_close_connection(c);
|
|
|
1839 return;
|
|
|
1840 }
|
|
|
1841
|
|
|
1842 b->last += n;
|
|
|
1843 rev->log->handler = ngx_http_log_error;
|
|
|
1844 ctx->action = "reading client request line";
|
|
|
1845
|
|
|
1846 ngx_http_init_request(rev);
|
|
|
1847 }
|
|
|
1848
|
|
|
1849
|
|
|
1850 static void ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
|
1851 {
|
|
|
1852 ngx_event_t *rev, *wev;
|
|
|
1853 ngx_connection_t *c;
|
|
|
1854 ngx_http_core_loc_conf_t *clcf;
|
|
|
1855
|
|
|
1856 c = r->connection;
|
|
|
1857
|
|
|
1858 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1859
|
|
|
1860 rev = c->read;
|
|
|
1861 rev->event_handler = ngx_http_lingering_close_handler;
|
|
|
1862
|
|
|
1863 r->lingering_time = ngx_time() + clcf->lingering_time / 1000;
|
|
|
1864 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
1865
|
|
|
1866 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1867 ngx_http_close_request(r, 0);
|
|
|
1868 ngx_http_close_connection(c);
|
|
|
1869 return;
|
|
|
1870 }
|
|
|
1871
|
|
|
1872 wev = c->write;
|
|
|
1873 wev->event_handler = ngx_http_empty_handler;
|
|
|
1874
|
|
|
1875 if (wev->active) {
|
|
4
|
1876 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1877 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
1878 == NGX_ERROR)
|
|
|
1879 {
|
|
|
1880 ngx_http_close_connection(c);
|
|
|
1881 return;
|
|
|
1882 }
|
|
|
1883
|
|
|
1884 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
1885 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1886 ngx_http_close_connection(c);
|
|
|
1887 return;
|
|
|
1888 }
|
|
|
1889 }
|
|
|
1890 }
|
|
|
1891
|
|
|
1892 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
1893 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1894 ngx_shutdown_socket_n " failed");
|
|
|
1895 ngx_http_close_request(r, 0);
|
|
|
1896 ngx_http_close_connection(c);
|
|
|
1897 return;
|
|
|
1898 }
|
|
|
1899
|
|
|
1900 if (rev->ready) {
|
|
|
1901 ngx_http_lingering_close_handler(rev);
|
|
|
1902 }
|
|
|
1903 }
|
|
|
1904
|
|
|
1905
|
|
|
1906 static void ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
|
1907 {
|
|
|
1908 ssize_t n;
|
|
|
1909 ngx_msec_t timer;
|
|
|
1910 ngx_connection_t *c;
|
|
|
1911 ngx_http_request_t *r;
|
|
|
1912 ngx_http_core_loc_conf_t *clcf;
|
|
|
1913 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
1914
|
|
|
1915 c = rev->data;
|
|
|
1916 r = c->data;
|
|
|
1917
|
|
|
1918 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1919 "http lingering close handler");
|
|
|
1920
|
|
|
1921 if (rev->timedout) {
|
|
|
1922 ngx_http_close_request(r, 0);
|
|
|
1923 ngx_http_close_connection(c);
|
|
|
1924 return;
|
|
|
1925 }
|
|
|
1926
|
|
|
1927 timer = r->lingering_time - ngx_time();
|
|
|
1928 if (timer <= 0) {
|
|
|
1929 ngx_http_close_request(r, 0);
|
|
|
1930 ngx_http_close_connection(c);
|
|
|
1931 return;
|
|
|
1932 }
|
|
|
1933
|
|
|
1934 do {
|
|
|
1935 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
1936
|
|
|
1937 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
1938
|
|
|
1939 if (n == NGX_ERROR || n == 0) {
|
|
|
1940 ngx_http_close_request(r, 0);
|
|
|
1941 ngx_http_close_connection(c);
|
|
|
1942 return;
|
|
|
1943 }
|
|
|
1944
|
|
|
1945 } while (rev->ready);
|
|
|
1946
|
|
24
|
1947 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1948 ngx_http_close_connection(c);
|
|
|
1949 return;
|
|
|
1950 }
|
|
|
1951
|
|
0
|
1952 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1953
|
|
|
1954 timer *= 1000;
|
|
|
1955
|
|
|
1956 if (timer > clcf->lingering_timeout) {
|
|
|
1957 timer = clcf->lingering_timeout;
|
|
|
1958 }
|
|
|
1959
|
|
|
1960 ngx_add_timer(rev, timer);
|
|
|
1961
|
|
|
1962 return;
|
|
|
1963 }
|
|
|
1964
|
|
|
1965
|
|
|
1966 void ngx_http_empty_handler(ngx_event_t *wev)
|
|
|
1967 {
|
|
|
1968 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
1969
|
|
|
1970 return;
|
|
|
1971 }
|
|
|
1972
|
|
|
1973
|
|
|
1974 ngx_int_t ngx_http_send_last(ngx_http_request_t *r)
|
|
|
1975 {
|
|
|
1976 ngx_buf_t *b;
|
|
|
1977 ngx_chain_t out;
|
|
|
1978
|
|
|
1979 if (!(b = ngx_calloc_buf(r->pool))) {
|
|
|
1980 return NGX_ERROR;
|
|
|
1981 }
|
|
|
1982
|
|
|
1983 b->last_buf = 1;
|
|
|
1984 out.buf = b;
|
|
|
1985 out.next = NULL;
|
|
|
1986
|
|
|
1987 return ngx_http_output_filter(r, &out);
|
|
|
1988 }
|
|
|
1989
|
|
|
1990
|
|
|
1991 void ngx_http_close_request(ngx_http_request_t *r, int error)
|
|
|
1992 {
|
|
|
1993 ngx_uint_t i;
|
|
|
1994 ngx_log_t *log;
|
|
|
1995 ngx_http_log_ctx_t *ctx;
|
|
|
1996 ngx_http_cleanup_t *cleanup;
|
|
|
1997 ngx_http_core_loc_conf_t *clcf;
|
|
|
1998 struct linger l;
|
|
|
1999
|
|
|
2000 log = r->connection->log;
|
|
|
2001
|
|
|
2002 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2003
|
|
|
2004 if (r->pool == NULL) {
|
|
|
2005 ngx_log_error(NGX_LOG_ALERT, log, 0,
|
|
|
2006 "http request already closed");
|
|
|
2007 return;
|
|
|
2008 }
|
|
|
2009
|
|
|
2010 #if (NGX_STAT_STUB)
|
|
|
2011 if (r->stat_reading) {
|
|
|
2012 (*ngx_stat_reading)--;
|
|
|
2013 }
|
|
|
2014
|
|
|
2015 if (r->stat_writing) {
|
|
|
2016 (*ngx_stat_writing)--;
|
|
|
2017 }
|
|
|
2018 #endif
|
|
|
2019
|
|
|
2020 if (error && r->headers_out.status == 0) {
|
|
|
2021 r->headers_out.status = error;
|
|
|
2022 }
|
|
|
2023
|
|
|
2024 ngx_http_log_handler(r);
|
|
|
2025
|
|
|
2026 cleanup = r->cleanup.elts;
|
|
|
2027 for (i = 0; i < r->cleanup.nelts; i++) {
|
|
|
2028 if (!cleanup[i].valid) {
|
|
|
2029 continue;
|
|
|
2030 }
|
|
|
2031
|
|
|
2032 #if (NGX_HTTP_CACHE)
|
|
|
2033
|
|
|
2034 if (cleanup[i].cache) {
|
|
|
2035 ngx_http_cache_unlock(cleanup[i].data.cache.hash,
|
|
|
2036 cleanup[i].data.cache.cache, log);
|
|
|
2037 continue;
|
|
|
2038 }
|
|
|
2039
|
|
|
2040 #endif
|
|
|
2041
|
|
|
2042 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http cleanup fd: %d",
|
|
|
2043 cleanup[i].data.file.fd);
|
|
|
2044
|
|
|
2045 if (ngx_close_file(cleanup[i].data.file.fd) == NGX_FILE_ERROR) {
|
|
|
2046 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
|
2047 ngx_close_file_n " \"%s\" failed",
|
|
|
2048 cleanup[i].data.file.name);
|
|
|
2049 }
|
|
|
2050 }
|
|
|
2051
|
|
|
2052 /* STUB */
|
|
|
2053 if (r->file.fd != NGX_INVALID_FILE) {
|
|
|
2054 if (ngx_close_file(r->file.fd) == NGX_FILE_ERROR) {
|
|
|
2055 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
10
|
2056 ngx_close_file_n " \"%V\" failed", &r->file.name);
|
|
0
|
2057 }
|
|
|
2058 }
|
|
|
2059
|
|
|
2060 if (r->request_body
|
|
|
2061 && r->request_body->temp_file
|
|
|
2062 && r->request_body->temp_file->file.fd != NGX_INVALID_FILE)
|
|
|
2063 {
|
|
|
2064 if (ngx_close_file(r->request_body->temp_file->file.fd)
|
|
|
2065 == NGX_FILE_ERROR)
|
|
|
2066 {
|
|
|
2067 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
10
|
2068 ngx_close_file_n " deleted file \"%V\" failed",
|
|
|
2069 &r->request_body->temp_file->file.name);
|
|
0
|
2070 }
|
|
|
2071 }
|
|
|
2072
|
|
|
2073 if (r->connection->timedout) {
|
|
|
2074 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2075
|
|
|
2076 if (clcf->reset_timedout_connection) {
|
|
|
2077 l.l_onoff = 1;
|
|
|
2078 l.l_linger = 0;
|
|
|
2079
|
|
|
2080 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
|
2081 (const void *) &l, sizeof(struct linger)) == -1)
|
|
|
2082 {
|
|
|
2083 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2084 "setsockopt(SO_LINGER) failed");
|
|
|
2085 }
|
|
|
2086 }
|
|
|
2087 }
|
|
|
2088
|
|
10
|
2089 /* the variuos request strings were allocated from r->pool */
|
|
0
|
2090 ctx = log->data;
|
|
10
|
2091 ctx->request = NULL;
|
|
0
|
2092
|
|
|
2093 r->request_line.len = 0;
|
|
|
2094
|
|
|
2095 ngx_destroy_pool(r->pool);
|
|
|
2096
|
|
|
2097 return;
|
|
|
2098 }
|
|
|
2099
|
|
|
2100
|
|
|
2101 #if (NGX_HTTP_SSL)
|
|
|
2102
|
|
|
2103 void ngx_ssl_close_handler(ngx_event_t *ev)
|
|
|
2104 {
|
|
|
2105 ngx_connection_t *c;
|
|
|
2106
|
|
|
2107 c = ev->data;
|
|
|
2108
|
|
|
2109 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0, "http ssl close handler");
|
|
|
2110
|
|
|
2111 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2112 return;
|
|
|
2113 }
|
|
|
2114
|
|
|
2115 ngx_http_close_connection(c);
|
|
|
2116 }
|
|
|
2117
|
|
|
2118 #endif
|
|
|
2119
|
|
|
2120
|
|
|
2121 void ngx_http_close_connection(ngx_connection_t *c)
|
|
|
2122 {
|
|
|
2123 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2124 "close http connection: %d", c->fd);
|
|
|
2125
|
|
2
|
2126 #if (NGX_OPENSSL)
|
|
|
2127
|
|
|
2128 if (c->ssl) {
|
|
|
2129 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2130 c->read->event_handler = ngx_ssl_close_handler;
|
|
|
2131 c->write->event_handler = ngx_ssl_close_handler;
|
|
|
2132 return;
|
|
|
2133 }
|
|
|
2134 }
|
|
|
2135
|
|
|
2136 #endif
|
|
|
2137
|
|
0
|
2138 #if (NGX_STAT_STUB)
|
|
|
2139 (*ngx_stat_active)--;
|
|
|
2140 #endif
|
|
|
2141
|
|
|
2142 ngx_close_connection(c);
|
|
|
2143 }
|
|
|
2144
|
|
|
2145
|
|
|
2146 static void ngx_http_client_error(ngx_http_request_t *r,
|
|
|
2147 int client_error, int error)
|
|
|
2148 {
|
|
10
|
2149 u_char *p;
|
|
0
|
2150 ngx_http_log_ctx_t *ctx;
|
|
|
2151 ngx_http_core_srv_conf_t *cscf;
|
|
|
2152
|
|
|
2153 ctx = r->connection->log->data;
|
|
|
2154
|
|
|
2155 if (error == NGX_HTTP_REQUEST_TIME_OUT) {
|
|
|
2156 ngx_log_error(NGX_LOG_INFO, r->connection->log, NGX_ETIMEDOUT,
|
|
|
2157 "client timed out");
|
|
|
2158 r->connection->timedout = 1;
|
|
|
2159 ngx_http_close_request(r, error);
|
|
|
2160 ngx_http_close_connection(r->connection);
|
|
|
2161 return;
|
|
|
2162 }
|
|
|
2163
|
|
|
2164 r->connection->log->handler = NULL;
|
|
|
2165
|
|
10
|
2166 if (ctx->request) {
|
|
|
2167
|
|
0
|
2168 switch (client_error) {
|
|
|
2169
|
|
|
2170 case NGX_HTTP_PARSE_INVALID_HOST:
|
|
|
2171 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
10
|
2172 "client %V sent invalid \"Host\" header \"%V\", URL: \"%V\"",
|
|
|
2173 ctx->client, &r->headers_in.host->value,
|
|
|
2174 &ctx->request->unparsed_uri);
|
|
0
|
2175
|
|
|
2176 error = NGX_HTTP_INVALID_HOST;
|
|
|
2177
|
|
|
2178 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
2179
|
|
|
2180 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_CLOSE) {
|
|
|
2181 ngx_http_close_request(r, error);
|
|
|
2182 ngx_http_close_connection(r->connection);
|
|
|
2183 return;
|
|
|
2184 }
|
|
|
2185
|
|
|
2186 break;
|
|
|
2187
|
|
|
2188 case NGX_HTTP_PARSE_HTTP_TO_HTTPS:
|
|
|
2189 error = NGX_HTTP_TO_HTTPS;
|
|
10
|
2190 if (ctx->request->headers_in.referer) {
|
|
|
2191 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2192 "client %V sent plain HTTP request to HTTPS port, "
|
|
|
2193 "URL: \"%V\", referrer \"%V\"",
|
|
|
2194 ctx->client, &ctx->request->unparsed_uri,
|
|
|
2195 &ctx->request->headers_in.referer->value);
|
|
|
2196
|
|
|
2197 } else {
|
|
|
2198 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2199 "client %V sent plain HTTP request to HTTPS port, "
|
|
|
2200 "URL: \"%V\"", ctx->client, &ctx->request->unparsed_uri);
|
|
|
2201 }
|
|
|
2202
|
|
|
2203 break;
|
|
0
|
2204
|
|
|
2205 default:
|
|
|
2206 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2207 client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
|
|
10
|
2208 ctx->client, &ctx->request->unparsed_uri);
|
|
0
|
2209 }
|
|
|
2210
|
|
|
2211 } else {
|
|
10
|
2212
|
|
0
|
2213 if (error == NGX_HTTP_REQUEST_URI_TOO_LARGE) {
|
|
|
2214 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
2215 r->request_line.data = r->request_start;
|
|
10
|
2216
|
|
|
2217 } else {
|
|
|
2218 if (r->request_line.data == NULL) {
|
|
|
2219 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2220 if (*p == CR || *p == LF) {
|
|
|
2221 break;
|
|
|
2222 }
|
|
|
2223 }
|
|
|
2224
|
|
|
2225 r->request_line.len = p - r->request_start;
|
|
|
2226 r->request_line.data = r->request_start;
|
|
|
2227 }
|
|
0
|
2228 }
|
|
|
2229
|
|
|
2230 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2231 client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
|
|
10
|
2232 ctx->client, &r->request_line);
|
|
0
|
2233 }
|
|
|
2234
|
|
|
2235 r->connection->log->handler = ngx_http_log_error;
|
|
|
2236
|
|
|
2237 ngx_http_finalize_request(r, error);
|
|
|
2238 }
|
|
|
2239
|
|
|
2240
|
|
10
|
2241 static u_char *ngx_http_log_error(void *data, u_char *buf, size_t len)
|
|
0
|
2242 {
|
|
|
2243 ngx_http_log_ctx_t *ctx = data;
|
|
|
2244
|
|
10
|
2245 u_char *p;
|
|
|
2246
|
|
|
2247 p = buf;
|
|
|
2248
|
|
|
2249 if (ctx->action) {
|
|
|
2250 p = ngx_snprintf(p, len, " while %s", ctx->action);
|
|
|
2251 len -= p - buf;
|
|
|
2252 }
|
|
|
2253
|
|
|
2254 p = ngx_snprintf(p, len, ", client: %V", ctx->client);
|
|
|
2255
|
|
|
2256 if (ctx->request == NULL) {
|
|
|
2257 return p;
|
|
0
|
2258 }
|
|
10
|
2259
|
|
|
2260 len -= p - buf;
|
|
|
2261
|
|
|
2262 p = ngx_snprintf(p, len, ", URL: \"%V\"", &ctx->request->unparsed_uri);
|
|
|
2263
|
|
|
2264 if (ctx->request->headers_in.referer == NULL) {
|
|
|
2265 return p;
|
|
|
2266 }
|
|
|
2267
|
|
|
2268 len -= p - buf;
|
|
|
2269
|
|
|
2270 return ngx_snprintf(p, len, ", referrer: \"%V\"",
|
|
|
2271 &ctx->request->headers_in.referer->value);
|
|
0
|
2272 }
|
