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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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26
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23 static ngx_int_t ngx_http_find_virtual_server(ngx_http_request_t *r);
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0
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24
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25 static void ngx_http_set_write_handler(ngx_http_request_t *r);
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26
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27 static void ngx_http_block_read(ngx_event_t *ev);
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28 static void ngx_http_read_discarded_body_event(ngx_event_t *rev);
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29 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r);
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30
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31 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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32 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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33 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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34 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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35
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36 static void ngx_http_client_error(ngx_http_request_t *r,
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37 int client_error, int error);
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32
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38 static u_char *ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len);
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0
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39
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40
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41 /* NGX_HTTP_PARSE_... errors */
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42
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43 static char *client_header_errors[] = {
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10
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44 "client %V sent invalid method \"%V\"",
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45 "client %V sent invalid request \"%V\"",
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46 "client %V sent too long URI in request \"%V\"",
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47 "client %V sent invalid method in HTTP/0.9 request \"%V\"",
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48
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49 "client %V sent invalid header, URL: \"%V\"",
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50 "client %V sent too long header line, URL: \"%V\"",
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51 "client %V sent HTTP/1.1 request without \"Host\" header, URL: \"%V\"",
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52 "client %V sent invalid \"Content-Length\" header, URL: \"%V\"",
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53 "client %V sent POST method without \"Content-Length\" header, URL: \"%V\"",
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0
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54 };
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55
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56
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57 ngx_http_header_t ngx_http_headers_in[] = {
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58 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host) },
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59 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection) },
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60 { ngx_string("If-Modified-Since"),
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61 offsetof(ngx_http_headers_in_t, if_modified_since) },
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62 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent) },
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63 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer) },
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64 { ngx_string("Content-Length"),
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65 offsetof(ngx_http_headers_in_t, content_length) },
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28
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66 { ngx_string("Content-Type"),
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67 offsetof(ngx_http_headers_in_t, content_type) },
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0
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68
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69 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range) },
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70 #if 0
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71 { ngx_string("If-Range"), offsetof(ngx_http_headers_in_t, if_range) },
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72 #endif
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73
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74 #if (NGX_HTTP_GZIP)
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75 { ngx_string("Accept-Encoding"),
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76 offsetof(ngx_http_headers_in_t, accept_encoding) },
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77 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via) },
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78 #endif
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79
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80 { ngx_string("Authorization"),
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81 offsetof(ngx_http_headers_in_t, authorization) },
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82
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83 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive) },
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84
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85 #if (NGX_HTTP_PROXY)
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86 { ngx_string("X-Forwarded-For"),
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87 offsetof(ngx_http_headers_in_t, x_forwarded_for) },
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6
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88 { ngx_string("X-Real-IP"), offsetof(ngx_http_headers_in_t, x_real_ip) },
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89 { ngx_string("X-URL"), offsetof(ngx_http_headers_in_t, x_url) },
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0
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90 #endif
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28
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91
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0
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92 { ngx_null_string, 0 }
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93 };
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94
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95
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96 #if 0
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97 static void ngx_http_dummy(ngx_event_t *wev)
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98 {
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99 return;
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100 }
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101 #endif
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102
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103
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104 void ngx_http_init_connection(ngx_connection_t *c)
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105 {
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106 ngx_event_t *rev;
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107 ngx_http_log_ctx_t *ctx;
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108
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10
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109 if (!(ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t)))) {
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0
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110 ngx_http_close_connection(c);
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111 return;
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112 }
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113
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10
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114 ctx->client = &c->addr_text;
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115 ctx->request = NULL;
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32
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116
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117 c->log->connection = c->number;
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118 c->log->handler = ngx_http_log_error;
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0
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119 c->log->data = ctx;
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32
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120 c->log->action = "reading client request line";
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121
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0
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122 c->log_error = NGX_ERROR_INFO;
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123
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124 rev = c->read;
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125 rev->event_handler = ngx_http_init_request;
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126
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127 /* STUB: epoll edge */ c->write->event_handler = ngx_http_empty_handler;
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128
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129 if (rev->ready) {
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130 /* the deferred accept(), rtsig, aio, iocp */
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131
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132 if (ngx_accept_mutex) {
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133 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
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134 ngx_http_close_connection(c);
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135 return;
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136 }
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137
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138 ngx_post_event(rev);
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139
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140 ngx_mutex_unlock(ngx_posted_events_mutex);
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141 return;
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142 }
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143
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144 #if (NGX_STAT_STUB)
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145 (*ngx_stat_reading)++;
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146 #endif
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147
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148 ngx_http_init_request(rev);
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149 return;
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150 }
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151
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152 ngx_add_timer(rev, c->listening->post_accept_timeout);
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153
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154 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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155 ngx_http_close_connection(c);
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156 return;
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157 }
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158
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159 #if 0
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160 /* TODO: learn SO_SNDBUF (to use in zerocopy) via kqueue's EV_CLEAR event */
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161
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162 c->write->ready = 0;
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163 c->write->event_handler = ngx_http_dummy;
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164
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165 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
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166 ngx_http_close_connection(c);
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167 return;
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168 }
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169 #endif
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170
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171 #if (NGX_STAT_STUB)
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172 (*ngx_stat_reading)++;
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173 #endif
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174
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175 }
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176
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177
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178 static void ngx_http_init_request(ngx_event_t *rev)
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179 {
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180 ngx_uint_t i;
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181 socklen_t len;
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28
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182 struct sockaddr_in sin;
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0
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183 ngx_connection_t *c;
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184 ngx_http_request_t *r;
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185 ngx_http_in_port_t *in_port;
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186 ngx_http_in_addr_t *in_addr;
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187 ngx_http_connection_t *hc;
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188 ngx_http_server_name_t *server_name;
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189 ngx_http_core_srv_conf_t *cscf;
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190 ngx_http_core_loc_conf_t *clcf;
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191 #if (NGX_HTTP_SSL)
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192 ngx_http_ssl_srv_conf_t *sscf;
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193 #endif
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194
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195 c = rev->data;
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196
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197 if (rev->timedout) {
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198 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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199
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200 #if (NGX_STAT_STUB)
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201 (*ngx_stat_reading)--;
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202 #endif
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203
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204 ngx_http_close_connection(c);
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205 return;
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206 }
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207
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208 hc = c->data;
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209
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210 if (hc) {
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211
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212 #if (NGX_STAT_STUB)
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213 (*ngx_stat_reading)++;
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214 #endif
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215
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216 } else {
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217 if (!(hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t)))) {
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218
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219 #if (NGX_STAT_STUB)
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220 (*ngx_stat_reading)--;
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221 #endif
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222
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223 ngx_http_close_connection(c);
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224 return;
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225 }
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226 }
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227
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228 r = hc->request;
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229
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230 if (r) {
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231 ngx_memzero(r, sizeof(ngx_http_request_t));
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232
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233 r->pipeline = hc->pipeline;
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234
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235 if (hc->nbusy) {
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236 r->header_in = hc->busy[0];
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237 }
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238
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239 } else {
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240 if (!(r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t)))) {
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241
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242 #if (NGX_STAT_STUB)
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243 (*ngx_stat_reading)--;
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244 #endif
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245
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246 ngx_http_close_connection(c);
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247 return;
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248 }
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249
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250 hc->request = r;
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251 }
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252
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253 #if (NGX_STAT_STUB)
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26
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254 (*ngx_stat_reading)--;
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0
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255 #endif
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256
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257 c->data = r;
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258 r->http_connection = hc;
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259
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260 c->sent = 0;
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261 r->signature = NGX_HTTP_MODULE;
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262
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263 /* find the server configuration for the address:port */
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264
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265 /* AF_INET only */
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266
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267 in_port = c->servers;
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268 in_addr = in_port->addrs.elts;
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269
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270 r->port = in_port->port;
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271 r->port_text = &in_port->port_text;
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272
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273 i = 0;
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274
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275 if (in_port->addrs.nelts > 1) {
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276
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277 /*
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278 * There are several addresses on this port and one of them
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279 * is the "*:port" wildcard so getsockname() is needed to determine
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280 * the server address.
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281 *
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282 * AcceptEx() already gave this address.
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283 */
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284
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10
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285 #if (NGX_WIN32)
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0
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286 if (c->local_sockaddr) {
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287 r->in_addr =
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288 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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289
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28
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290 } else
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0
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291 #endif
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28
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292 {
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0
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293 len = sizeof(struct sockaddr_in);
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28
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294 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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295 ngx_connection_error(c, ngx_socket_errno,
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296 "getsockname() failed");
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297 ngx_http_close_connection(c);
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298 return;
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299 }
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300
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28
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301 r->in_addr = sin.sin_addr.s_addr;
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0
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302 }
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303
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304 /* the last in_port->addrs address is "*" */
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305
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306 for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) {
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307 if (in_addr[i].addr == r->in_addr) {
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308 break;
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309 }
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310 }
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311
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312 } else {
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313 r->in_addr = in_addr[0].addr;
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314 }
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315
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26
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316 r->virtual_names = &in_addr[i];
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0
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317
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318 /* the default server configuration for the address:port */
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319 cscf = in_addr[i].core_srv_conf;
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320
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321 r->main_conf = cscf->ctx->main_conf;
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322 r->srv_conf = cscf->ctx->srv_conf;
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323 r->loc_conf = cscf->ctx->loc_conf;
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324
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325 rev->event_handler = ngx_http_process_request_line;
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326
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327 #if (NGX_HTTP_SSL)
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328
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329 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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330 if (sscf->enable) {
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331
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332 if (c->ssl == NULL) {
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333 if (ngx_ssl_create_session(sscf->ssl_ctx, c, NGX_SSL_BUFFER)
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334 == NGX_ERROR)
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335 {
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336 ngx_http_close_connection(c);
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337 return;
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338 }
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339
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26
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340 rev->event_handler = ngx_http_ssl_handshake;
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341
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0
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342 /*
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343 * The majority of browsers do not send the "close notify" alert.
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344 * Among them are MSIE, Mozilla, Netscape 4, Konqueror, and Links.
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345 * And what is more MSIE ignores the server's alert.
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346 *
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347 * Opera always sends the alert.
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348 */
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349
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350 c->ssl->no_rcv_shut = 1;
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351 }
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352
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353 r->filter_need_in_memory = 1;
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354 }
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355
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356 #endif
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357
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358 server_name = cscf->server_names.elts;
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6
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359 r->server_name = server_name->name;
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0
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360
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361 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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362 c->log->file = clcf->err_log->file;
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363 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
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364 c->log->log_level = clcf->err_log->log_level;
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365 }
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366
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367 if (c->buffer == NULL) {
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368 c->buffer = ngx_create_temp_buf(c->pool,
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369 cscf->client_header_buffer_size);
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370 if (c->buffer == NULL) {
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371 ngx_http_close_connection(c);
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372 return;
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373 }
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374 }
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375
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376 if (r->header_in == NULL) {
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377 r->header_in = c->buffer;
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378 }
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379
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380 if (!(r->pool = ngx_create_pool(cscf->request_pool_size, c->log))) {
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381 ngx_http_close_connection(c);
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382 return;
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383 }
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384
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385 if (ngx_array_init(&r->cleanup, r->pool, 5, sizeof(ngx_http_cleanup_t))
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386 == NGX_ERROR)
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387 {
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388 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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389 ngx_http_close_connection(c);
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390 return;
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391 }
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392
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393
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394 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
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|
|
395 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
|
396 {
|
|
|
397 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
398 ngx_http_close_connection(c);
|
|
|
399 return;
|
|
|
400 }
|
|
|
401
|
|
|
402
|
|
|
403 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
404 if (r->ctx == NULL) {
|
|
|
405 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
406 ngx_http_close_connection(c);
|
|
|
407 return;
|
|
|
408 }
|
|
|
409
|
|
|
410 c->single_connection = 1;
|
|
|
411 r->connection = c;
|
|
|
412
|
|
|
413 r->file.fd = NGX_INVALID_FILE;
|
|
|
414
|
|
|
415 r->headers_in.content_length_n = -1;
|
|
|
416 r->headers_in.keep_alive_n = -1;
|
|
|
417 r->headers_out.content_length_n = -1;
|
|
|
418 r->headers_out.last_modified_time = -1;
|
|
|
419
|
|
|
420 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
421
|
|
|
422 #if (NGX_STAT_STUB)
|
|
26
|
423 (*ngx_stat_reading)++;
|
|
|
424 r->stat_reading = 1;
|
|
0
|
425 (*ngx_stat_requests)++;
|
|
|
426 #endif
|
|
|
427
|
|
|
428 rev->event_handler(rev);
|
|
|
429 }
|
|
|
430
|
|
|
431
|
|
|
432 #if (NGX_HTTP_SSL)
|
|
|
433
|
|
|
434 static void ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
|
435 {
|
|
10
|
436 u_char buf[1];
|
|
|
437 ssize_t n;
|
|
0
|
438 ngx_int_t rc;
|
|
|
439 ngx_connection_t *c;
|
|
|
440 ngx_http_request_t *r;
|
|
|
441
|
|
|
442 c = rev->data;
|
|
|
443 r = c->data;
|
|
|
444
|
|
|
445 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
446 "http check ssl handshake");
|
|
|
447
|
|
|
448 if (rev->timedout) {
|
|
|
449 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
450 return;
|
|
|
451 }
|
|
|
452
|
|
|
453 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
454
|
|
|
455 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
456 return;
|
|
|
457 }
|
|
|
458
|
|
|
459 if (n == 1) {
|
|
|
460 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
461 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
462 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
463
|
|
|
464 c->recv = ngx_ssl_recv;
|
|
|
465 c->send_chain = ngx_ssl_send_chain;
|
|
|
466
|
|
|
467 rc = ngx_ssl_handshake(c);
|
|
|
468
|
|
|
469 if (rc == NGX_ERROR) {
|
|
|
470 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
471 ngx_http_close_connection(r->connection);
|
|
|
472 return;
|
|
|
473 }
|
|
|
474
|
|
|
475 if (rc != NGX_OK) {
|
|
|
476 return;
|
|
|
477 }
|
|
|
478
|
|
|
479 } else {
|
|
|
480 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
481 "plain http");
|
|
|
482
|
|
|
483 r->plain_http = 1;
|
|
|
484 }
|
|
|
485 }
|
|
|
486
|
|
|
487 rev->event_handler = ngx_http_process_request_line;
|
|
|
488 ngx_http_process_request_line(rev);
|
|
|
489 }
|
|
|
490
|
|
|
491 #endif
|
|
|
492
|
|
|
493
|
|
|
494 static void ngx_http_process_request_line(ngx_event_t *rev)
|
|
|
495 {
|
|
|
496 ssize_t n;
|
|
|
497 ngx_int_t rc, rv;
|
|
|
498 ngx_connection_t *c;
|
|
|
499 ngx_http_request_t *r;
|
|
|
500 ngx_http_log_ctx_t *ctx;
|
|
|
501
|
|
|
502 c = rev->data;
|
|
|
503 r = c->data;
|
|
|
504
|
|
|
505 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
506 "http process request line");
|
|
|
507
|
|
|
508 if (rev->timedout) {
|
|
|
509 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
510 return;
|
|
|
511 }
|
|
|
512
|
|
|
513 rc = NGX_AGAIN;
|
|
|
514
|
|
|
515 for ( ;; ) {
|
|
|
516
|
|
|
517 if (rc == NGX_AGAIN) {
|
|
|
518 n = ngx_http_read_request_header(r);
|
|
|
519
|
|
|
520 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
521 return;
|
|
|
522 }
|
|
|
523 }
|
|
|
524
|
|
|
525 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
526
|
|
|
527 if (rc == NGX_OK) {
|
|
|
528
|
|
|
529 /* the request line has been parsed successfully */
|
|
|
530
|
|
10
|
531 r->request_line.len = r->request_end - r->request_start;
|
|
|
532 r->request_line.data = r->request_start;
|
|
|
533
|
|
0
|
534
|
|
|
535 if (r->args_start) {
|
|
|
536 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
537 } else {
|
|
|
538 r->uri.len = r->uri_end - r->uri_start;
|
|
|
539 }
|
|
|
540
|
|
18
|
541
|
|
2
|
542 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
543
|
|
|
544 if (!(r->uri.data = ngx_palloc(r->pool, r->uri.len + 1))) {
|
|
|
545 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
546 ngx_http_close_connection(c);
|
|
|
547 return;
|
|
|
548 }
|
|
|
549
|
|
0
|
550 rc = ngx_http_parse_complex_uri(r);
|
|
|
551
|
|
|
552 if (rc == NGX_HTTP_INTERNAL_SERVER_ERROR) {
|
|
|
553 ngx_http_close_request(r, rc);
|
|
|
554 ngx_http_close_connection(c);
|
|
|
555 return;
|
|
|
556 }
|
|
|
557
|
|
|
558 if (rc != NGX_OK) {
|
|
|
559 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
560 return;
|
|
|
561 }
|
|
|
562
|
|
|
563 } else {
|
|
10
|
564 r->uri.data = r->uri_start;
|
|
0
|
565 }
|
|
|
566
|
|
18
|
567
|
|
10
|
568 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
569 r->unparsed_uri.data = r->uri_start;
|
|
|
570
|
|
0
|
571
|
|
|
572 if (r->method == 0) {
|
|
|
573 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
574 r->method_name.data = r->request_line.data;
|
|
|
575 }
|
|
|
576
|
|
10
|
577
|
|
28
|
578 if (r->http_protocol.data) {
|
|
|
579 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
580 }
|
|
|
581
|
|
|
582
|
|
0
|
583 if (r->uri_ext) {
|
|
|
584 if (r->args_start) {
|
|
|
585 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
586 } else {
|
|
|
587 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
588 }
|
|
|
589
|
|
10
|
590 r->exten.data = r->uri_ext;
|
|
0
|
591 }
|
|
|
592
|
|
10
|
593
|
|
0
|
594 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
595 r->args.len = r->uri_end - r->args_start;
|
|
10
|
596 r->args.data = r->args_start;
|
|
0
|
597 }
|
|
|
598
|
|
10
|
599
|
|
|
600 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
601 "http request line: \"%V\"", &r->request_line);
|
|
|
602
|
|
0
|
603 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
604 "http uri: \"%V\"", &r->uri);
|
|
0
|
605
|
|
|
606 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
607 "http args: \"%V\"", &r->args);
|
|
0
|
608
|
|
|
609 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
610 "http exten: \"%V\"", &r->exten);
|
|
|
611
|
|
|
612 ctx = c->log->data;
|
|
|
613 ctx->request = r;
|
|
0
|
614
|
|
|
615 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
|
616 rev->event_handler = ngx_http_block_read;
|
|
|
617 ngx_http_handler(r);
|
|
|
618 return;
|
|
|
619 }
|
|
|
620
|
|
|
621
|
|
|
622 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
|
623 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
|
624 {
|
|
|
625 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
626 ngx_http_close_connection(c);
|
|
|
627 return;
|
|
|
628 }
|
|
|
629
|
|
|
630
|
|
|
631 if (ngx_array_init(&r->headers_in.cookies, r->pool, 5,
|
|
|
632 sizeof(ngx_table_elt_t *)) == NGX_ERROR)
|
|
|
633 {
|
|
|
634 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
635 ngx_http_close_connection(c);
|
|
|
636 return;
|
|
|
637 }
|
|
|
638
|
|
32
|
639 c->log->action = "reading client request headers";
|
|
0
|
640
|
|
|
641 rev->event_handler = ngx_http_process_request_headers;
|
|
|
642 ngx_http_process_request_headers(rev);
|
|
|
643
|
|
|
644 return;
|
|
|
645
|
|
|
646 } else if (rc != NGX_AGAIN) {
|
|
|
647
|
|
|
648 /* there was error while a request line parsing */
|
|
|
649
|
|
10
|
650 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
651
|
|
|
652 #if 0
|
|
0
|
653 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
654 if (*p == CR || *p == LF) {
|
|
|
655 break;
|
|
|
656 }
|
|
|
657 }
|
|
|
658
|
|
|
659 r->request_line.len = p - r->request_start;
|
|
|
660 r->request_line.data = r->request_start;
|
|
|
661
|
|
|
662 if (rc == NGX_HTTP_PARSE_INVALID_METHOD) {
|
|
|
663 r->http_version = NGX_HTTP_VERSION_10;
|
|
|
664 }
|
|
|
665
|
|
|
666 ngx_http_client_error(r, rc,
|
|
|
667 (rc == NGX_HTTP_PARSE_INVALID_METHOD) ?
|
|
|
668 NGX_HTTP_NOT_IMPLEMENTED:
|
|
|
669 NGX_HTTP_BAD_REQUEST);
|
|
10
|
670 #endif
|
|
|
671
|
|
0
|
672 return;
|
|
|
673 }
|
|
|
674
|
|
|
675 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
676
|
|
|
677 if (r->header_in->pos == r->header_in->end) {
|
|
|
678
|
|
|
679 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
680
|
|
|
681 if (rv == NGX_ERROR) {
|
|
|
682 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
683 ngx_http_close_connection(c);
|
|
|
684 return;
|
|
|
685 }
|
|
|
686
|
|
|
687 if (rv == NGX_DECLINED) {
|
|
|
688 ngx_http_client_error(r, NGX_HTTP_PARSE_TOO_LONG_URI,
|
|
|
689 NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
|
690 return;
|
|
|
691 }
|
|
|
692 }
|
|
|
693 }
|
|
|
694 }
|
|
|
695
|
|
|
696
|
|
|
697 static void ngx_http_process_request_headers(ngx_event_t *rev)
|
|
|
698 {
|
|
|
699 ssize_t n;
|
|
|
700 ngx_int_t rc, rv, i;
|
|
|
701 ngx_table_elt_t *h, **cookie;
|
|
|
702 ngx_connection_t *c;
|
|
|
703 ngx_http_request_t *r;
|
|
|
704
|
|
|
705 c = rev->data;
|
|
|
706 r = c->data;
|
|
|
707
|
|
|
708 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
709 "http process request header line");
|
|
|
710
|
|
|
711 if (rev->timedout) {
|
|
|
712 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
713 return;
|
|
|
714 }
|
|
|
715
|
|
|
716 rc = NGX_AGAIN;
|
|
|
717
|
|
|
718 for ( ;; ) {
|
|
|
719
|
|
|
720 if (rc == NGX_AGAIN) {
|
|
|
721
|
|
|
722 if (r->header_in->pos == r->header_in->end) {
|
|
|
723
|
|
|
724 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
725
|
|
|
726 if (rv == NGX_ERROR) {
|
|
|
727 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
728 ngx_http_close_connection(c);
|
|
|
729 return;
|
|
|
730 }
|
|
|
731
|
|
|
732 if (rv == NGX_DECLINED) {
|
|
|
733 ngx_http_client_error(r, NGX_HTTP_PARSE_TOO_LONG_HEADER,
|
|
|
734 NGX_HTTP_BAD_REQUEST);
|
|
|
735 return;
|
|
|
736 }
|
|
|
737 }
|
|
|
738
|
|
|
739 n = ngx_http_read_request_header(r);
|
|
|
740
|
|
|
741 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
742 return;
|
|
|
743 }
|
|
|
744 }
|
|
|
745
|
|
|
746 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
747
|
|
|
748 if (rc == NGX_OK) {
|
|
|
749
|
|
|
750 /* a header line has been parsed successfully */
|
|
|
751
|
|
|
752 r->headers_n++;
|
|
|
753
|
|
|
754 if (!(h = ngx_list_push(&r->headers_in.headers))) {
|
|
|
755 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
756 ngx_http_close_connection(c);
|
|
|
757 return;
|
|
|
758 }
|
|
|
759
|
|
|
760 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
761 h->key.data = r->header_name_start;
|
|
|
762 h->key.data[h->key.len] = '\0';
|
|
|
763
|
|
|
764 h->value.len = r->header_end - r->header_start;
|
|
|
765 h->value.data = r->header_start;
|
|
|
766 h->value.data[h->value.len] = '\0';
|
|
|
767
|
|
|
768 if (h->key.len == sizeof("Cookie") - 1
|
|
|
769 && ngx_strcasecmp(h->key.data, "Cookie") == 0)
|
|
|
770 {
|
|
|
771 if (!(cookie = ngx_array_push(&r->headers_in.cookies))) {
|
|
|
772 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
773 ngx_http_close_connection(c);
|
|
|
774 return;
|
|
|
775 }
|
|
|
776
|
|
|
777 *cookie = h;
|
|
|
778
|
|
|
779 } else {
|
|
|
780
|
|
|
781 for (i = 0; ngx_http_headers_in[i].name.len != 0; i++) {
|
|
|
782 if (ngx_http_headers_in[i].name.len != h->key.len) {
|
|
|
783 continue;
|
|
|
784 }
|
|
|
785
|
|
|
786 if (ngx_strcasecmp(ngx_http_headers_in[i].name.data,
|
|
|
787 h->key.data) == 0)
|
|
|
788 {
|
|
|
789 *((ngx_table_elt_t **) ((char *) &r->headers_in
|
|
|
790 + ngx_http_headers_in[i].offset)) = h;
|
|
|
791 break;
|
|
|
792 }
|
|
|
793 }
|
|
|
794 }
|
|
|
795
|
|
|
796 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
797 "http header: \"%V: %V\"",
|
|
|
798 &h->key, &h->value);
|
|
0
|
799
|
|
|
800 continue;
|
|
|
801
|
|
|
802 } else if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
|
803
|
|
|
804 /* a whole header has been parsed successfully */
|
|
|
805
|
|
|
806 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
807 "http header done");
|
|
|
808
|
|
24
|
809 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
810
|
|
0
|
811 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
812
|
|
|
813 rc = ngx_http_process_request_header(r);
|
|
|
814
|
|
|
815 if (rc != NGX_OK) {
|
|
|
816 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
817 return;
|
|
|
818 }
|
|
|
819
|
|
|
820 if (rev->timer_set) {
|
|
|
821 ngx_del_timer(rev);
|
|
|
822 }
|
|
|
823
|
|
|
824 #if (NGX_STAT_STUB)
|
|
|
825 (*ngx_stat_reading)--;
|
|
|
826 r->stat_reading = 0;
|
|
|
827 (*ngx_stat_writing)++;
|
|
|
828 r->stat_writing = 1;
|
|
|
829 #endif
|
|
|
830
|
|
|
831 rev->event_handler = ngx_http_block_read;
|
|
|
832 ngx_http_handler(r);
|
|
|
833 return;
|
|
|
834
|
|
|
835 } else if (rc != NGX_AGAIN) {
|
|
|
836
|
|
|
837 /* there was error while a header line parsing */
|
|
|
838
|
|
|
839 #if (NGX_DEBUG)
|
|
|
840 if (rc == NGX_HTTP_PARSE_INVALID_HEADER
|
|
|
841 && (rev->log->log_level & NGX_LOG_DEBUG_HTTP))
|
|
|
842 {
|
|
|
843 u_char *p;
|
|
|
844 for (p = r->header_name_start;
|
|
|
845 p < r->header_in->last - 1;
|
|
|
846 p++)
|
|
|
847 {
|
|
|
848 if (*p == LF) {
|
|
|
849 break;
|
|
|
850 }
|
|
|
851 }
|
|
|
852 *p = '\0';
|
|
|
853 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
854 "http invalid header: \"%s\"",
|
|
|
855 r->header_name_start);
|
|
|
856 }
|
|
|
857 #endif
|
|
|
858
|
|
|
859 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
860 return;
|
|
|
861 }
|
|
|
862
|
|
|
863 /* NGX_AGAIN: a header line parsing is still not complete */
|
|
|
864
|
|
|
865 }
|
|
|
866 }
|
|
|
867
|
|
|
868
|
|
|
869 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r)
|
|
|
870 {
|
|
|
871 ssize_t n;
|
|
|
872 ngx_event_t *rev;
|
|
|
873 ngx_http_core_srv_conf_t *cscf;
|
|
|
874
|
|
|
875 rev = r->connection->read;
|
|
|
876
|
|
|
877 n = r->header_in->last - r->header_in->pos;
|
|
|
878
|
|
|
879 if (n > 0) {
|
|
|
880 return n;
|
|
|
881 }
|
|
|
882
|
|
|
883 if (!rev->ready) {
|
|
|
884 return NGX_AGAIN;
|
|
|
885 }
|
|
|
886
|
|
|
887 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
888 r->header_in->end - r->header_in->last);
|
|
|
889
|
|
|
890 if (n == NGX_AGAIN) {
|
|
|
891 if (!r->header_timeout_set) {
|
|
|
892 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
893 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
894 r->header_timeout_set = 1;
|
|
|
895 }
|
|
|
896
|
|
|
897 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
898 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
899 ngx_http_close_connection(r->connection);
|
|
|
900 return NGX_ERROR;
|
|
|
901 }
|
|
|
902
|
|
|
903 return NGX_AGAIN;
|
|
|
904 }
|
|
|
905
|
|
|
906 if (n == 0) {
|
|
|
907 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
908 "client closed prematurely connection");
|
|
|
909 }
|
|
|
910
|
|
|
911 if (n == 0 || n == NGX_ERROR) {
|
|
|
912 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
913 ngx_http_close_connection(r->connection);
|
|
|
914 return NGX_ERROR;
|
|
|
915 }
|
|
|
916
|
|
|
917 r->header_in->last += n;
|
|
|
918
|
|
|
919 return n;
|
|
|
920 }
|
|
|
921
|
|
|
922
|
|
|
923 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
924 ngx_uint_t request_line)
|
|
|
925 {
|
|
|
926 u_char *old, *new;
|
|
|
927 ngx_buf_t *b;
|
|
|
928 ngx_http_connection_t *hc;
|
|
|
929 ngx_http_core_srv_conf_t *cscf;
|
|
|
930
|
|
|
931 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
932 "http alloc large header buffer");
|
|
|
933
|
|
|
934 if (request_line && r->state == 0) {
|
|
|
935
|
|
|
936 /* the client fills up the buffer with "\r\n" */
|
|
|
937
|
|
24
|
938 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
939
|
|
0
|
940 r->header_in->pos = r->header_in->start;
|
|
|
941 r->header_in->last = r->header_in->start;
|
|
|
942
|
|
|
943 return NGX_OK;
|
|
|
944 }
|
|
|
945
|
|
|
946 old = request_line ? r->request_start : r->header_name_start;
|
|
|
947
|
|
|
948 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
949
|
|
|
950 if (r->state != 0
|
|
|
951 && (size_t) (r->header_in->pos - old)
|
|
|
952 >= cscf->large_client_header_buffers.size)
|
|
|
953 {
|
|
|
954 return NGX_DECLINED;
|
|
|
955 }
|
|
|
956
|
|
|
957 hc = r->http_connection;
|
|
|
958
|
|
|
959 if (hc->nfree) {
|
|
|
960 b = hc->free[--hc->nfree];
|
|
|
961
|
|
|
962 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
963 "http large header free: %p %uz",
|
|
0
|
964 b->pos, b->end - b->last);
|
|
|
965
|
|
|
966 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
967
|
|
|
968 if (hc->busy == NULL) {
|
|
|
969 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
970 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
971 if (hc->busy == NULL) {
|
|
|
972 return NGX_ERROR;
|
|
|
973 }
|
|
|
974 }
|
|
|
975
|
|
|
976 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
977 cscf->large_client_header_buffers.size);
|
|
|
978 if (b == NULL) {
|
|
|
979 return NGX_ERROR;
|
|
|
980 }
|
|
|
981
|
|
|
982 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
983 "http large header alloc: %p %uz",
|
|
0
|
984 b->pos, b->end - b->last);
|
|
|
985
|
|
|
986 } else {
|
|
|
987 return NGX_DECLINED;
|
|
|
988 }
|
|
|
989
|
|
|
990 hc->busy[hc->nbusy++] = b;
|
|
|
991
|
|
|
992 if (r->state == 0) {
|
|
|
993 /*
|
|
|
994 * r->state == 0 means that a header line was parsed successfully
|
|
|
995 * and we do not need to copy incomplete header line and
|
|
|
996 * to relocate the parser header pointers
|
|
|
997 */
|
|
|
998
|
|
24
|
999 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1000
|
|
0
|
1001 r->header_in = b;
|
|
|
1002
|
|
|
1003 return NGX_OK;
|
|
|
1004 }
|
|
|
1005
|
|
|
1006 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1007 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1008
|
|
24
|
1009 r->request_length += old - r->header_in->start;
|
|
|
1010
|
|
0
|
1011 new = b->start;
|
|
|
1012
|
|
|
1013 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1014
|
|
|
1015 b->pos = new + (r->header_in->pos - old);
|
|
|
1016 b->last = new + (r->header_in->pos - old);
|
|
|
1017
|
|
|
1018 if (request_line) {
|
|
|
1019 r->request_start = new;
|
|
|
1020
|
|
|
1021 if (r->request_end) {
|
|
|
1022 r->request_end = new + (r->request_end - old);
|
|
|
1023 }
|
|
|
1024
|
|
|
1025 r->method_end = new + (r->method_end - old);
|
|
|
1026
|
|
|
1027 r->uri_start = new + (r->uri_start - old);
|
|
|
1028 r->uri_end = new + (r->uri_end - old);
|
|
|
1029
|
|
|
1030 if (r->schema_start) {
|
|
|
1031 r->schema_start = new + (r->schema_start - old);
|
|
|
1032 r->schema_end = new + (r->schema_end - old);
|
|
|
1033 }
|
|
|
1034
|
|
|
1035 if (r->host_start) {
|
|
|
1036 r->host_start = new + (r->host_start - old);
|
|
|
1037 r->host_end = new + (r->host_end - old);
|
|
|
1038 }
|
|
|
1039
|
|
|
1040 if (r->port_start) {
|
|
|
1041 r->port_start = new + (r->port_start - old);
|
|
|
1042 r->port_end = new + (r->port_end - old);
|
|
|
1043 }
|
|
|
1044
|
|
|
1045 if (r->uri_ext) {
|
|
|
1046 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1047 }
|
|
|
1048
|
|
|
1049 if (r->args_start) {
|
|
|
1050 r->args_start = new + (r->args_start - old);
|
|
|
1051 }
|
|
|
1052
|
|
|
1053 } else {
|
|
|
1054 r->header_name_start = new;
|
|
|
1055 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1056 r->header_start = new + (r->header_start - old);
|
|
|
1057 r->header_end = new + (r->header_end - old);
|
|
|
1058 }
|
|
|
1059
|
|
|
1060 r->header_in = b;
|
|
|
1061
|
|
|
1062 return NGX_OK;
|
|
|
1063 }
|
|
|
1064
|
|
|
1065
|
|
|
1066 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r)
|
|
|
1067 {
|
|
26
|
1068 u_char *ua, *user_agent, ch;
|
|
|
1069 size_t len;
|
|
0
|
1070
|
|
|
1071 if (r->headers_in.host) {
|
|
|
1072 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1073 ch = r->headers_in.host->value.data[len];
|
|
|
1074
|
|
|
1075 if (ch == ':') {
|
|
0
|
1076 break;
|
|
|
1077 }
|
|
26
|
1078
|
|
|
1079 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
|
0
|
1080 }
|
|
|
1081 r->headers_in.host_name_len = len;
|
|
|
1082
|
|
26
|
1083 if (ngx_http_find_virtual_server(r) != NGX_OK) {
|
|
|
1084 return NGX_HTTP_PARSE_INVALID_HOST;
|
|
0
|
1085 }
|
|
|
1086
|
|
|
1087 } else {
|
|
|
1088 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
|
1089 return NGX_HTTP_PARSE_NO_HOST_HEADER;
|
|
|
1090 }
|
|
|
1091 r->headers_in.host_name_len = 0;
|
|
|
1092 }
|
|
|
1093
|
|
|
1094 if (r->headers_in.content_length) {
|
|
|
1095 r->headers_in.content_length_n =
|
|
|
1096 ngx_atoi(r->headers_in.content_length->value.data,
|
|
|
1097 r->headers_in.content_length->value.len);
|
|
|
1098
|
|
|
1099 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
|
1100 return NGX_HTTP_PARSE_INVALID_CL_HEADER;
|
|
|
1101 }
|
|
|
1102 }
|
|
|
1103
|
|
32
|
1104 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n == -1) {
|
|
0
|
1105 return NGX_HTTP_PARSE_POST_WO_CL_HEADER;
|
|
|
1106 }
|
|
|
1107
|
|
|
1108 if (r->plain_http) {
|
|
|
1109 return NGX_HTTP_PARSE_HTTP_TO_HTTPS;
|
|
|
1110 }
|
|
|
1111
|
|
|
1112 if (r->headers_in.connection) {
|
|
|
1113 if (r->headers_in.connection->value.len == 5
|
|
|
1114 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
|
1115 == 0)
|
|
|
1116 {
|
|
|
1117 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1118
|
|
|
1119 } else if (r->headers_in.connection->value.len == 10
|
|
|
1120 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
|
1121 "keep-alive") == 0)
|
|
|
1122 {
|
|
|
1123 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1124
|
|
|
1125 if (r->headers_in.keep_alive) {
|
|
|
1126 r->headers_in.keep_alive_n =
|
|
|
1127 ngx_atoi(r->headers_in.keep_alive->value.data,
|
|
|
1128 r->headers_in.keep_alive->value.len);
|
|
|
1129 }
|
|
|
1130 }
|
|
|
1131 }
|
|
|
1132
|
|
|
1133 if (r->headers_in.user_agent) {
|
|
|
1134
|
|
|
1135 /*
|
|
|
1136 * check some widespread browsers while the headers are still
|
|
|
1137 * in CPU cache
|
|
|
1138 */
|
|
|
1139
|
|
|
1140 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1141
|
|
|
1142 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1143
|
|
|
1144 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1145
|
|
|
1146 r->headers_in.msie = 1;
|
|
|
1147
|
|
|
1148 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1149 r->headers_in.msie4 = 1;
|
|
|
1150 }
|
|
|
1151
|
|
|
1152 #if 0
|
|
|
1153 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1154 if (c->ssl) {
|
|
|
1155 r->connection->ssl->no_send_shut = 1;
|
|
|
1156 }
|
|
0
|
1157 #endif
|
|
|
1158 }
|
|
|
1159
|
|
|
1160 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1161 r->headers_in.opera = 1;
|
|
|
1162 r->headers_in.msie = 0;
|
|
|
1163 r->headers_in.msie4 = 0;
|
|
|
1164 }
|
|
|
1165
|
|
|
1166 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1167
|
|
|
1168 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1169 r->headers_in.gecko = 1;
|
|
|
1170
|
|
|
1171 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1172 r->headers_in.konqueror = 1;
|
|
|
1173 }
|
|
|
1174 }
|
|
|
1175 }
|
|
|
1176
|
|
|
1177 return NGX_OK;
|
|
|
1178 }
|
|
|
1179
|
|
|
1180
|
|
26
|
1181 static ngx_int_t ngx_http_find_virtual_server(ngx_http_request_t *r)
|
|
|
1182 {
|
|
|
1183 ngx_int_t rc;
|
|
|
1184 ngx_uint_t i, n, key, found;
|
|
|
1185 ngx_http_server_name_t *name;
|
|
|
1186 ngx_http_core_main_conf_t *cmcf;
|
|
|
1187 ngx_http_core_srv_conf_t *cscf;
|
|
|
1188 ngx_http_core_loc_conf_t *clcf;
|
|
|
1189
|
|
|
1190 if (r->virtual_names->hash) {
|
|
|
1191 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
1192
|
|
|
1193 ngx_http_server_names_hash_key(key,
|
|
|
1194 r->headers_in.host->value.data,
|
|
|
1195 r->headers_in.host_name_len,
|
|
|
1196 cmcf->server_names_hash);
|
|
|
1197
|
|
|
1198 name = r->virtual_names->hash[key].elts;
|
|
|
1199 n = r->virtual_names->hash[key].nelts;
|
|
|
1200
|
|
|
1201 } else {
|
|
|
1202 name = r->virtual_names->names.elts;
|
|
|
1203 n = r->virtual_names->names.nelts;
|
|
|
1204 }
|
|
|
1205
|
|
|
1206 found = 0;
|
|
|
1207
|
|
|
1208 for (i = 0; i < n; i++) {
|
|
|
1209
|
|
|
1210 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1211 "server name: %V", &name[i].name);
|
|
|
1212
|
|
|
1213 if (r->headers_in.host_name_len != name[i].name.len) {
|
|
|
1214 continue;
|
|
|
1215 }
|
|
|
1216
|
|
|
1217 rc = ngx_strncmp(r->headers_in.host->value.data,
|
|
|
1218 name[i].name.data, name[i].name.len);
|
|
|
1219
|
|
|
1220 if (rc == 0) {
|
|
|
1221 r->server_name = name[i].name;
|
|
|
1222
|
|
|
1223 found = 1;
|
|
|
1224 break;
|
|
|
1225 }
|
|
|
1226
|
|
|
1227 if (rc < 0) {
|
|
|
1228 /* the server names are lexicographically sorted */
|
|
|
1229 break;
|
|
|
1230 }
|
|
|
1231 }
|
|
|
1232
|
|
|
1233 if (!found && r->virtual_names->wildcards.nelts) {
|
|
|
1234
|
|
|
1235 name = r->virtual_names->wildcards.elts;
|
|
|
1236 for (i = 0; i < r->virtual_names->wildcards.nelts; i++) {
|
|
|
1237
|
|
|
1238 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1239 "server name: %V", &name[i].name);
|
|
|
1240
|
|
|
1241 if (r->headers_in.host_name_len <= name[i].name.len) {
|
|
|
1242 continue;
|
|
|
1243 }
|
|
|
1244
|
|
|
1245 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1246 "server name: %s",
|
|
|
1247 r->headers_in.host->value.data
|
|
|
1248 + (r->headers_in.host_name_len - name[i].name.len));
|
|
|
1249
|
|
|
1250 if (ngx_strncmp(r->headers_in.host->value.data
|
|
|
1251 + (r->headers_in.host_name_len - name[i].name.len),
|
|
|
1252 name[i].name.data, name[i].name.len) == 0)
|
|
|
1253 {
|
|
|
1254 r->server_name.len = r->headers_in.host_name_len;
|
|
|
1255 r->server_name.data = r->headers_in.host->value.data;
|
|
|
1256
|
|
|
1257 found = 1;
|
|
|
1258 break;
|
|
|
1259 }
|
|
|
1260 }
|
|
|
1261 }
|
|
|
1262
|
|
|
1263 if (found) {
|
|
|
1264 r->srv_conf = name[i].core_srv_conf->ctx->srv_conf;
|
|
|
1265 r->loc_conf = name[i].core_srv_conf->ctx->loc_conf;
|
|
|
1266
|
|
|
1267 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1268 r->connection->log->file = clcf->err_log->file;
|
|
|
1269
|
|
|
1270 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1271 r->connection->log->log_level = clcf->err_log->log_level;
|
|
|
1272 }
|
|
|
1273
|
|
|
1274 return NGX_OK;
|
|
|
1275 }
|
|
|
1276
|
|
|
1277 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1278
|
|
|
1279 if (cscf->restrict_host_names != NGX_HTTP_RESTRICT_HOST_OFF) {
|
|
|
1280 return NGX_ERROR;
|
|
|
1281 }
|
|
|
1282
|
|
|
1283 return NGX_OK;
|
|
|
1284 }
|
|
|
1285
|
|
|
1286
|
|
0
|
1287 void ngx_http_finalize_request(ngx_http_request_t *r, int rc)
|
|
|
1288 {
|
|
|
1289 ngx_http_core_loc_conf_t *clcf;
|
|
|
1290
|
|
26
|
1291 /* r may be already destroyed when rc == NGX_DONE */
|
|
0
|
1292
|
|
|
1293 if (rc == NGX_DONE || r->main) {
|
|
|
1294 return;
|
|
|
1295 }
|
|
|
1296
|
|
|
1297 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1298 "http finalize request: %d", rc);
|
|
|
1299
|
|
|
1300 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
|
|
|
1301
|
|
|
1302 if (r->connection->read->timer_set) {
|
|
|
1303 ngx_del_timer(r->connection->read);
|
|
|
1304 }
|
|
|
1305
|
|
|
1306 if (r->connection->write->timer_set) {
|
|
|
1307 ngx_del_timer(r->connection->write);
|
|
|
1308 }
|
|
|
1309
|
|
|
1310 if (rc == NGX_HTTP_CLIENT_CLOSED_REQUEST || r->closed) {
|
|
|
1311 ngx_http_close_request(r, 0);
|
|
|
1312 ngx_http_close_connection(r->connection);
|
|
|
1313 return;
|
|
|
1314 }
|
|
|
1315
|
|
|
1316 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1317
|
|
|
1318 return;
|
|
|
1319
|
|
|
1320 } else if (rc == NGX_ERROR) {
|
|
|
1321 ngx_http_close_request(r, 0);
|
|
|
1322 ngx_http_close_connection(r->connection);
|
|
|
1323 return;
|
|
|
1324
|
|
|
1325 } else if (rc == NGX_AGAIN) {
|
|
|
1326 ngx_http_set_write_handler(r);
|
|
|
1327 return;
|
|
|
1328 }
|
|
|
1329
|
|
|
1330 if (r->connection->read->timer_set) {
|
|
|
1331 ngx_del_timer(r->connection->read);
|
|
|
1332 }
|
|
|
1333
|
|
|
1334 if (r->connection->write->timer_set) {
|
|
|
1335 r->connection->write->delayed = 0;
|
|
|
1336 ngx_del_timer(r->connection->write);
|
|
|
1337 }
|
|
|
1338
|
|
|
1339 if (r->connection->read->pending_eof) {
|
|
22
|
1340 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1341 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log,
|
|
|
1342 r->connection->read->kq_errno,
|
|
|
1343 "kevent() reported about an closed connection");
|
|
|
1344 #endif
|
|
|
1345 ngx_http_close_request(r, 0);
|
|
|
1346 ngx_http_close_connection(r->connection);
|
|
|
1347 return;
|
|
|
1348 }
|
|
|
1349
|
|
|
1350 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1351
|
|
|
1352 if (!ngx_terminate
|
|
|
1353 && !ngx_exiting
|
|
|
1354 && r->keepalive != 0
|
|
|
1355 && clcf->keepalive_timeout > 0)
|
|
|
1356 {
|
|
|
1357 ngx_http_set_keepalive(r);
|
|
|
1358 return;
|
|
|
1359
|
|
|
1360 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1361 ngx_http_set_lingering_close(r);
|
|
|
1362 return;
|
|
|
1363 }
|
|
|
1364
|
|
|
1365 ngx_http_close_request(r, 0);
|
|
|
1366 ngx_http_close_connection(r->connection);
|
|
|
1367 }
|
|
|
1368
|
|
|
1369
|
|
|
1370 static void ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
|
1371 {
|
|
|
1372 ngx_event_t *wev;
|
|
|
1373 ngx_http_core_loc_conf_t *clcf;
|
|
|
1374
|
|
|
1375 wev = r->connection->write;
|
|
|
1376 wev->event_handler = ngx_http_writer;
|
|
|
1377
|
|
|
1378 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1379
|
|
|
1380 if (wev->ready && wev->delayed) {
|
|
|
1381 return;
|
|
|
1382 }
|
|
|
1383
|
|
|
1384 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1385 ngx_http_core_module);
|
|
|
1386 if (!wev->delayed) {
|
|
|
1387 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1388 }
|
|
|
1389
|
|
2
|
1390 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1391 ngx_http_close_request(r, 0);
|
|
|
1392 ngx_http_close_connection(r->connection);
|
|
|
1393 }
|
|
|
1394
|
|
|
1395 return;
|
|
|
1396 }
|
|
|
1397
|
|
|
1398
|
|
|
1399 void ngx_http_writer(ngx_event_t *wev)
|
|
|
1400 {
|
|
|
1401 int rc;
|
|
|
1402 ngx_connection_t *c;
|
|
|
1403 ngx_http_request_t *r;
|
|
|
1404 ngx_http_core_loc_conf_t *clcf;
|
|
|
1405
|
|
|
1406 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http writer handler");
|
|
|
1407
|
|
|
1408 c = wev->data;
|
|
|
1409 r = c->data;
|
|
|
1410
|
|
|
1411 if (wev->timedout) {
|
|
|
1412 if (!wev->delayed) {
|
|
|
1413 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
1414 return;
|
|
|
1415 }
|
|
|
1416
|
|
|
1417 wev->timedout = 0;
|
|
|
1418 wev->delayed = 0;
|
|
|
1419
|
|
|
1420 if (!wev->ready) {
|
|
|
1421 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1422 ngx_http_core_module);
|
|
|
1423 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1424
|
|
2
|
1425 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1426 ngx_http_close_request(r, 0);
|
|
|
1427 ngx_http_close_connection(r->connection);
|
|
|
1428 }
|
|
|
1429
|
|
|
1430 return;
|
|
|
1431 }
|
|
|
1432
|
|
|
1433 } else {
|
|
|
1434 if (wev->delayed) {
|
|
|
1435 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1436 "http writer delayed");
|
|
|
1437
|
|
|
1438 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1439 ngx_http_core_module);
|
|
2
|
1440
|
|
|
1441 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1442 ngx_http_close_request(r, 0);
|
|
|
1443 ngx_http_close_connection(r->connection);
|
|
|
1444 }
|
|
|
1445
|
|
|
1446 return;
|
|
|
1447 }
|
|
|
1448 }
|
|
|
1449
|
|
|
1450 rc = ngx_http_output_filter(r, NULL);
|
|
|
1451
|
|
|
1452 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1453 "http writer output filter: %d", rc);
|
|
|
1454
|
|
|
1455 if (rc == NGX_AGAIN) {
|
|
|
1456 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1457 ngx_http_core_module);
|
|
|
1458 if (!wev->ready && !wev->delayed) {
|
|
|
1459 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1460 }
|
|
|
1461
|
|
2
|
1462 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1463 ngx_http_close_request(r, 0);
|
|
|
1464 ngx_http_close_connection(r->connection);
|
|
|
1465 }
|
|
|
1466
|
|
|
1467 return;
|
|
|
1468 }
|
|
|
1469
|
|
|
1470 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http writer done");
|
|
|
1471
|
|
|
1472 ngx_http_finalize_request(r, rc);
|
|
|
1473 }
|
|
|
1474
|
|
|
1475
|
|
|
1476 static void ngx_http_block_read(ngx_event_t *rev)
|
|
|
1477 {
|
|
|
1478 ngx_connection_t *c;
|
|
|
1479 ngx_http_request_t *r;
|
|
|
1480
|
|
|
1481 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http read blocked");
|
|
|
1482
|
|
|
1483 /* aio does not call this handler */
|
|
|
1484
|
|
|
1485 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
|
|
|
1486 if (ngx_del_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
1487 c = rev->data;
|
|
|
1488 r = c->data;
|
|
|
1489 ngx_http_close_request(r, 0);
|
|
|
1490 ngx_http_close_connection(c);
|
|
|
1491 }
|
|
|
1492 }
|
|
|
1493 }
|
|
|
1494
|
|
|
1495
|
|
|
1496 ngx_int_t ngx_http_discard_body(ngx_http_request_t *r)
|
|
|
1497 {
|
|
|
1498 ssize_t size;
|
|
|
1499 ngx_event_t *rev;
|
|
|
1500
|
|
|
1501 rev = r->connection->read;
|
|
|
1502
|
|
|
1503 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
|
1504
|
|
|
1505 if (rev->timer_set) {
|
|
|
1506 ngx_del_timer(rev);
|
|
|
1507 }
|
|
|
1508
|
|
|
1509 if (r->headers_in.content_length_n <= 0) {
|
|
|
1510 return NGX_OK;
|
|
|
1511 }
|
|
|
1512
|
|
|
1513 size = r->header_in->last - r->header_in->pos;
|
|
|
1514
|
|
|
1515 if (size) {
|
|
|
1516 if (r->headers_in.content_length_n > size) {
|
|
|
1517 r->headers_in.content_length_n -= size;
|
|
|
1518
|
|
|
1519 } else {
|
|
|
1520 r->header_in->pos += r->headers_in.content_length_n;
|
|
|
1521 r->headers_in.content_length_n = 0;
|
|
|
1522 return NGX_OK;
|
|
|
1523 }
|
|
|
1524 }
|
|
|
1525
|
|
|
1526 rev->event_handler = ngx_http_read_discarded_body_event;
|
|
|
1527
|
|
|
1528 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1529 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1530 }
|
|
|
1531
|
|
|
1532 return ngx_http_read_discarded_body(r);
|
|
|
1533 }
|
|
|
1534
|
|
|
1535
|
|
|
1536 static void ngx_http_read_discarded_body_event(ngx_event_t *rev)
|
|
|
1537 {
|
|
|
1538 ngx_int_t rc;
|
|
|
1539 ngx_connection_t *c;
|
|
|
1540 ngx_http_request_t *r;
|
|
|
1541
|
|
|
1542 c = rev->data;
|
|
|
1543 r = c->data;
|
|
|
1544
|
|
|
1545 rc = ngx_http_read_discarded_body(r);
|
|
|
1546
|
|
|
1547 if (rc == NGX_AGAIN) {
|
|
|
1548 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1549 ngx_http_close_request(r, rc);
|
|
|
1550 ngx_http_close_connection(c);
|
|
|
1551 return;
|
|
|
1552 }
|
|
|
1553 }
|
|
|
1554
|
|
|
1555 if (rc != NGX_OK) {
|
|
|
1556 ngx_http_close_request(r, rc);
|
|
|
1557 ngx_http_close_connection(c);
|
|
|
1558 }
|
|
|
1559 }
|
|
|
1560
|
|
|
1561
|
|
|
1562 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r)
|
|
|
1563 {
|
|
|
1564 ssize_t size, n;
|
|
|
1565 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
|
1566
|
|
|
1567 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1568 "http read discarded body");
|
|
|
1569
|
|
|
1570 if (r->headers_in.content_length_n == 0) {
|
|
|
1571 return NGX_OK;
|
|
|
1572 }
|
|
|
1573
|
|
|
1574
|
|
|
1575 size = r->headers_in.content_length_n;
|
|
|
1576
|
|
|
1577 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
|
1578 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
|
1579 }
|
|
|
1580
|
|
|
1581 n = r->connection->recv(r->connection, buffer, size);
|
|
|
1582
|
|
|
1583 if (n == NGX_ERROR) {
|
|
|
1584
|
|
|
1585 r->closed = 1;
|
|
|
1586
|
|
|
1587 /*
|
|
|
1588 * if a client request body is discarded then we already set
|
|
|
1589 * some HTTP response code for client and we can ignore the error
|
|
|
1590 */
|
|
|
1591
|
|
|
1592 return NGX_OK;
|
|
|
1593 }
|
|
|
1594
|
|
|
1595 if (n == NGX_AGAIN) {
|
|
|
1596 return NGX_AGAIN;
|
|
|
1597 }
|
|
|
1598
|
|
|
1599 r->headers_in.content_length_n -= n;
|
|
|
1600
|
|
|
1601 return NGX_OK;
|
|
|
1602 }
|
|
|
1603
|
|
|
1604
|
|
|
1605 static void ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
|
1606 {
|
|
2
|
1607 int tcp_nodelay;
|
|
0
|
1608 ngx_int_t i;
|
|
|
1609 ngx_buf_t *b, *f;
|
|
|
1610 ngx_event_t *rev, *wev;
|
|
|
1611 ngx_connection_t *c;
|
|
|
1612 ngx_http_connection_t *hc;
|
|
|
1613 ngx_http_core_srv_conf_t *cscf;
|
|
|
1614 ngx_http_core_loc_conf_t *clcf;
|
|
|
1615
|
|
|
1616 c = r->connection;
|
|
|
1617 rev = c->read;
|
|
|
1618
|
|
|
1619 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1620
|
|
32
|
1621 c->log->action = "closing request";
|
|
0
|
1622
|
|
|
1623 hc = r->http_connection;
|
|
|
1624 b = r->header_in;
|
|
|
1625
|
|
|
1626 if (b->pos < b->last) {
|
|
|
1627
|
|
|
1628 /* the pipelined request */
|
|
|
1629
|
|
|
1630 if (b != c->buffer) {
|
|
|
1631
|
|
4
|
1632 /*
|
|
|
1633 * If the large header buffers were allocated while the previous
|
|
|
1634 * request processing then we do not use c->buffer for
|
|
|
1635 * the pipelined request (see ngx_http_init_request()).
|
|
|
1636 *
|
|
|
1637 * Now we would move the large header buffers to the free list.
|
|
|
1638 */
|
|
0
|
1639
|
|
|
1640 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1641
|
|
|
1642 if (hc->free == NULL) {
|
|
|
1643 hc->free = ngx_palloc(c->pool,
|
|
|
1644 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1645
|
|
|
1646 if (hc->free == NULL) {
|
|
26
|
1647 ngx_http_close_request(r, 0);
|
|
0
|
1648 ngx_http_close_connection(c);
|
|
|
1649 return;
|
|
|
1650 }
|
|
|
1651 }
|
|
|
1652
|
|
|
1653 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1654 f = hc->busy[i];
|
|
|
1655 hc->free[hc->nfree++] = f;
|
|
|
1656 f->pos = f->start;
|
|
|
1657 f->last = f->start;
|
|
|
1658 }
|
|
|
1659
|
|
|
1660 hc->busy[0] = b;
|
|
|
1661 hc->nbusy = 1;
|
|
|
1662 }
|
|
|
1663 }
|
|
|
1664
|
|
26
|
1665 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1666
|
|
0
|
1667 ngx_http_close_request(r, 0);
|
|
|
1668 c->data = hc;
|
|
|
1669
|
|
|
1670 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1671
|
|
|
1672 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1673 ngx_http_close_connection(c);
|
|
|
1674 return;
|
|
|
1675 }
|
|
|
1676
|
|
|
1677 wev = c->write;
|
|
|
1678 wev->event_handler = ngx_http_empty_handler;
|
|
|
1679
|
|
|
1680 if (b->pos < b->last) {
|
|
|
1681
|
|
|
1682 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1683
|
|
|
1684 hc->pipeline = 1;
|
|
32
|
1685 c->log->action = "reading client pipelined request line";
|
|
0
|
1686 ngx_http_init_request(rev);
|
|
|
1687 return;
|
|
|
1688 }
|
|
|
1689
|
|
|
1690 hc->pipeline = 0;
|
|
|
1691
|
|
4
|
1692 /*
|
|
|
1693 * To keep a memory footprint as small as possible for an idle
|
|
|
1694 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1695 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1696 * The large header buffers are always allocated outside the c->pool and
|
|
|
1697 * are freed too.
|
|
|
1698 */
|
|
|
1699
|
|
0
|
1700 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1701 hc->request = NULL;
|
|
|
1702 }
|
|
|
1703
|
|
|
1704 b = c->buffer;
|
|
|
1705
|
|
|
1706 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1707
|
|
|
1708 /*
|
|
|
1709 * the special note for ngx_http_keepalive_handler() that
|
|
|
1710 * c->buffer's memory was freed
|
|
|
1711 */
|
|
|
1712
|
|
0
|
1713 b->pos = NULL;
|
|
|
1714
|
|
|
1715 } else {
|
|
|
1716 b->pos = b->start;
|
|
|
1717 b->last = b->start;
|
|
|
1718 }
|
|
|
1719
|
|
10
|
1720 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1721 hc->free, hc->nfree);
|
|
|
1722
|
|
|
1723 if (hc->free) {
|
|
|
1724 for (i = 0; i < hc->nfree; i++) {
|
|
|
1725 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1726 hc->free[i] = NULL;
|
|
|
1727 }
|
|
|
1728
|
|
|
1729 hc->nfree = 0;
|
|
|
1730 }
|
|
|
1731
|
|
10
|
1732 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1733 hc->busy, hc->nbusy);
|
|
|
1734
|
|
|
1735 if (hc->busy) {
|
|
|
1736 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1737 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1738 hc->busy[i] = NULL;
|
|
|
1739 }
|
|
|
1740
|
|
|
1741 hc->nbusy = 0;
|
|
|
1742 }
|
|
|
1743
|
|
|
1744 rev->event_handler = ngx_http_keepalive_handler;
|
|
|
1745
|
|
|
1746 if (wev->active) {
|
|
4
|
1747 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1748 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
1749 == NGX_ERROR)
|
|
|
1750 {
|
|
|
1751 ngx_http_close_connection(c);
|
|
|
1752 return;
|
|
|
1753 }
|
|
|
1754
|
|
|
1755 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
1756 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1757 ngx_http_close_connection(c);
|
|
|
1758 return;
|
|
|
1759 }
|
|
|
1760 }
|
|
|
1761 }
|
|
|
1762
|
|
32
|
1763 c->log->action = "keepalive";
|
|
0
|
1764
|
|
|
1765 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
|
1766 if (ngx_tcp_push(c->fd) == NGX_ERROR) {
|
|
|
1767 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
1768 ngx_http_close_connection(c);
|
|
|
1769 return;
|
|
|
1770 }
|
|
2
|
1771
|
|
0
|
1772 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
1773 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
1774
|
|
|
1775 } else {
|
|
22
|
1776 tcp_nodelay = 1;
|
|
|
1777 }
|
|
|
1778
|
|
32
|
1779 if (tcp_nodelay
|
|
|
1780 && clcf->tcp_nodelay
|
|
|
1781 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
1782 {
|
|
22
|
1783 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1784
|
|
|
1785 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
1786 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
1787 {
|
|
|
1788 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1789 "setsockopt(TCP_NODELAY) failed");
|
|
|
1790 ngx_http_close_connection(c);
|
|
|
1791 return;
|
|
2
|
1792 }
|
|
22
|
1793
|
|
32
|
1794 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
1795 }
|
|
|
1796
|
|
|
1797 #if 0
|
|
4
|
1798 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
1799 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
1800 #endif
|
|
|
1801
|
|
|
1802 if (rev->ready) {
|
|
|
1803 ngx_http_keepalive_handler(rev);
|
|
|
1804 }
|
|
|
1805 }
|
|
|
1806
|
|
|
1807
|
|
|
1808 static void ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
|
1809 {
|
|
|
1810 size_t size;
|
|
|
1811 ssize_t n;
|
|
|
1812 ngx_buf_t *b;
|
|
|
1813 ngx_connection_t *c;
|
|
|
1814 ngx_http_connection_t *hc;
|
|
|
1815
|
|
|
1816 c = rev->data;
|
|
|
1817
|
|
|
1818 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
1819
|
|
|
1820 if (rev->timedout) {
|
|
|
1821 ngx_http_close_connection(c);
|
|
|
1822 return;
|
|
|
1823 }
|
|
|
1824
|
|
18
|
1825 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1826
|
|
4
|
1827 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1828 if (rev->pending_eof) {
|
|
32
|
1829 c->log->handler = NULL;
|
|
0
|
1830 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
1831 "kevent() reported that client %V closed "
|
|
32
|
1832 "keepalive connection", &c->addr_text);
|
|
22
|
1833 #if (NGX_HTTP_SSL)
|
|
|
1834 if (c->ssl) {
|
|
|
1835 c->ssl->no_send_shut = 1;
|
|
|
1836 }
|
|
|
1837 #endif
|
|
0
|
1838 ngx_http_close_connection(c);
|
|
|
1839 return;
|
|
|
1840 }
|
|
|
1841 }
|
|
|
1842
|
|
|
1843 #endif
|
|
|
1844
|
|
|
1845 hc = c->data;
|
|
|
1846 b = c->buffer;
|
|
|
1847 size = b->end - b->start;
|
|
|
1848
|
|
|
1849 if (b->pos == NULL) {
|
|
4
|
1850
|
|
|
1851 /*
|
|
|
1852 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
1853 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
1854 * to keep the buffer size.
|
|
|
1855 */
|
|
|
1856
|
|
0
|
1857 if (!(b->pos = ngx_palloc(c->pool, size))) {
|
|
|
1858 ngx_http_close_connection(c);
|
|
|
1859 return;
|
|
|
1860 }
|
|
|
1861
|
|
|
1862 b->start = b->pos;
|
|
|
1863 b->last = b->pos;
|
|
|
1864 b->end = b->pos + size;
|
|
|
1865 }
|
|
|
1866
|
|
|
1867 /*
|
|
|
1868 * MSIE closes a keepalive connection with RST flag
|
|
|
1869 * so we ignore ECONNRESET here.
|
|
|
1870 */
|
|
|
1871
|
|
|
1872 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
1873 ngx_set_socket_errno(0);
|
|
|
1874
|
|
|
1875 n = c->recv(c, b->last, size);
|
|
|
1876 c->log_error = NGX_ERROR_INFO;
|
|
|
1877
|
|
|
1878 if (n == NGX_AGAIN) {
|
|
24
|
1879 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1880 ngx_http_close_connection(c);
|
|
|
1881 }
|
|
|
1882
|
|
0
|
1883 return;
|
|
|
1884 }
|
|
|
1885
|
|
|
1886 if (n == NGX_ERROR) {
|
|
|
1887 ngx_http_close_connection(c);
|
|
|
1888 return;
|
|
|
1889 }
|
|
|
1890
|
|
32
|
1891 c->log->handler = NULL;
|
|
0
|
1892
|
|
|
1893 if (n == 0) {
|
|
|
1894 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
1895 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
1896 ngx_http_close_connection(c);
|
|
|
1897 return;
|
|
|
1898 }
|
|
|
1899
|
|
|
1900 b->last += n;
|
|
32
|
1901
|
|
|
1902 c->log->handler = ngx_http_log_error;
|
|
|
1903 c->log->action = "reading client request line";
|
|
0
|
1904
|
|
|
1905 ngx_http_init_request(rev);
|
|
|
1906 }
|
|
|
1907
|
|
|
1908
|
|
|
1909 static void ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
|
1910 {
|
|
|
1911 ngx_event_t *rev, *wev;
|
|
|
1912 ngx_connection_t *c;
|
|
|
1913 ngx_http_core_loc_conf_t *clcf;
|
|
|
1914
|
|
|
1915 c = r->connection;
|
|
|
1916
|
|
|
1917 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1918
|
|
|
1919 rev = c->read;
|
|
|
1920 rev->event_handler = ngx_http_lingering_close_handler;
|
|
|
1921
|
|
|
1922 r->lingering_time = ngx_time() + clcf->lingering_time / 1000;
|
|
|
1923 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
1924
|
|
|
1925 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1926 ngx_http_close_request(r, 0);
|
|
|
1927 ngx_http_close_connection(c);
|
|
|
1928 return;
|
|
|
1929 }
|
|
|
1930
|
|
|
1931 wev = c->write;
|
|
|
1932 wev->event_handler = ngx_http_empty_handler;
|
|
|
1933
|
|
|
1934 if (wev->active) {
|
|
4
|
1935 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1936 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
1937 == NGX_ERROR)
|
|
|
1938 {
|
|
26
|
1939 ngx_http_close_request(r, 0);
|
|
0
|
1940 ngx_http_close_connection(c);
|
|
|
1941 return;
|
|
|
1942 }
|
|
|
1943
|
|
|
1944 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
1945 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
26
|
1946 ngx_http_close_request(r, 0);
|
|
0
|
1947 ngx_http_close_connection(c);
|
|
|
1948 return;
|
|
|
1949 }
|
|
|
1950 }
|
|
|
1951 }
|
|
|
1952
|
|
|
1953 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
1954 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1955 ngx_shutdown_socket_n " failed");
|
|
|
1956 ngx_http_close_request(r, 0);
|
|
|
1957 ngx_http_close_connection(c);
|
|
|
1958 return;
|
|
|
1959 }
|
|
|
1960
|
|
|
1961 if (rev->ready) {
|
|
|
1962 ngx_http_lingering_close_handler(rev);
|
|
|
1963 }
|
|
|
1964 }
|
|
|
1965
|
|
|
1966
|
|
|
1967 static void ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
|
1968 {
|
|
|
1969 ssize_t n;
|
|
|
1970 ngx_msec_t timer;
|
|
|
1971 ngx_connection_t *c;
|
|
|
1972 ngx_http_request_t *r;
|
|
|
1973 ngx_http_core_loc_conf_t *clcf;
|
|
|
1974 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
1975
|
|
|
1976 c = rev->data;
|
|
|
1977 r = c->data;
|
|
|
1978
|
|
|
1979 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1980 "http lingering close handler");
|
|
|
1981
|
|
|
1982 if (rev->timedout) {
|
|
|
1983 ngx_http_close_request(r, 0);
|
|
|
1984 ngx_http_close_connection(c);
|
|
|
1985 return;
|
|
|
1986 }
|
|
|
1987
|
|
|
1988 timer = r->lingering_time - ngx_time();
|
|
|
1989 if (timer <= 0) {
|
|
|
1990 ngx_http_close_request(r, 0);
|
|
|
1991 ngx_http_close_connection(c);
|
|
|
1992 return;
|
|
|
1993 }
|
|
|
1994
|
|
|
1995 do {
|
|
|
1996 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
1997
|
|
|
1998 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
1999
|
|
|
2000 if (n == NGX_ERROR || n == 0) {
|
|
|
2001 ngx_http_close_request(r, 0);
|
|
|
2002 ngx_http_close_connection(c);
|
|
|
2003 return;
|
|
|
2004 }
|
|
|
2005
|
|
|
2006 } while (rev->ready);
|
|
|
2007
|
|
24
|
2008 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
26
|
2009 ngx_http_close_request(r, 0);
|
|
24
|
2010 ngx_http_close_connection(c);
|
|
|
2011 return;
|
|
|
2012 }
|
|
|
2013
|
|
0
|
2014 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2015
|
|
|
2016 timer *= 1000;
|
|
|
2017
|
|
|
2018 if (timer > clcf->lingering_timeout) {
|
|
|
2019 timer = clcf->lingering_timeout;
|
|
|
2020 }
|
|
|
2021
|
|
|
2022 ngx_add_timer(rev, timer);
|
|
|
2023 }
|
|
|
2024
|
|
|
2025
|
|
|
2026 void ngx_http_empty_handler(ngx_event_t *wev)
|
|
|
2027 {
|
|
|
2028 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2029
|
|
|
2030 return;
|
|
|
2031 }
|
|
|
2032
|
|
|
2033
|
|
|
2034 ngx_int_t ngx_http_send_last(ngx_http_request_t *r)
|
|
|
2035 {
|
|
|
2036 ngx_buf_t *b;
|
|
|
2037 ngx_chain_t out;
|
|
|
2038
|
|
|
2039 if (!(b = ngx_calloc_buf(r->pool))) {
|
|
|
2040 return NGX_ERROR;
|
|
|
2041 }
|
|
|
2042
|
|
|
2043 b->last_buf = 1;
|
|
|
2044 out.buf = b;
|
|
|
2045 out.next = NULL;
|
|
|
2046
|
|
|
2047 return ngx_http_output_filter(r, &out);
|
|
|
2048 }
|
|
|
2049
|
|
|
2050
|
|
|
2051 void ngx_http_close_request(ngx_http_request_t *r, int error)
|
|
|
2052 {
|
|
|
2053 ngx_uint_t i;
|
|
|
2054 ngx_log_t *log;
|
|
|
2055 ngx_http_log_ctx_t *ctx;
|
|
|
2056 ngx_http_cleanup_t *cleanup;
|
|
|
2057 ngx_http_core_loc_conf_t *clcf;
|
|
|
2058 struct linger l;
|
|
|
2059
|
|
|
2060 log = r->connection->log;
|
|
|
2061
|
|
|
2062 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2063
|
|
|
2064 if (r->pool == NULL) {
|
|
|
2065 ngx_log_error(NGX_LOG_ALERT, log, 0,
|
|
|
2066 "http request already closed");
|
|
|
2067 return;
|
|
|
2068 }
|
|
|
2069
|
|
|
2070 #if (NGX_STAT_STUB)
|
|
|
2071 if (r->stat_reading) {
|
|
|
2072 (*ngx_stat_reading)--;
|
|
|
2073 }
|
|
|
2074
|
|
|
2075 if (r->stat_writing) {
|
|
|
2076 (*ngx_stat_writing)--;
|
|
|
2077 }
|
|
|
2078 #endif
|
|
|
2079
|
|
|
2080 if (error && r->headers_out.status == 0) {
|
|
|
2081 r->headers_out.status = error;
|
|
|
2082 }
|
|
|
2083
|
|
|
2084 ngx_http_log_handler(r);
|
|
|
2085
|
|
|
2086 cleanup = r->cleanup.elts;
|
|
|
2087 for (i = 0; i < r->cleanup.nelts; i++) {
|
|
|
2088 if (!cleanup[i].valid) {
|
|
|
2089 continue;
|
|
|
2090 }
|
|
|
2091
|
|
|
2092 #if (NGX_HTTP_CACHE)
|
|
|
2093
|
|
|
2094 if (cleanup[i].cache) {
|
|
|
2095 ngx_http_cache_unlock(cleanup[i].data.cache.hash,
|
|
|
2096 cleanup[i].data.cache.cache, log);
|
|
|
2097 continue;
|
|
|
2098 }
|
|
|
2099
|
|
|
2100 #endif
|
|
|
2101
|
|
|
2102 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http cleanup fd: %d",
|
|
|
2103 cleanup[i].data.file.fd);
|
|
|
2104
|
|
|
2105 if (ngx_close_file(cleanup[i].data.file.fd) == NGX_FILE_ERROR) {
|
|
|
2106 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
|
2107 ngx_close_file_n " \"%s\" failed",
|
|
|
2108 cleanup[i].data.file.name);
|
|
|
2109 }
|
|
|
2110 }
|
|
|
2111
|
|
|
2112 /* STUB */
|
|
|
2113 if (r->file.fd != NGX_INVALID_FILE) {
|
|
|
2114 if (ngx_close_file(r->file.fd) == NGX_FILE_ERROR) {
|
|
|
2115 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
10
|
2116 ngx_close_file_n " \"%V\" failed", &r->file.name);
|
|
0
|
2117 }
|
|
|
2118 }
|
|
|
2119
|
|
|
2120 if (r->request_body
|
|
|
2121 && r->request_body->temp_file
|
|
|
2122 && r->request_body->temp_file->file.fd != NGX_INVALID_FILE)
|
|
|
2123 {
|
|
|
2124 if (ngx_close_file(r->request_body->temp_file->file.fd)
|
|
|
2125 == NGX_FILE_ERROR)
|
|
|
2126 {
|
|
|
2127 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
10
|
2128 ngx_close_file_n " deleted file \"%V\" failed",
|
|
|
2129 &r->request_body->temp_file->file.name);
|
|
0
|
2130 }
|
|
|
2131 }
|
|
|
2132
|
|
|
2133 if (r->connection->timedout) {
|
|
|
2134 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2135
|
|
|
2136 if (clcf->reset_timedout_connection) {
|
|
|
2137 l.l_onoff = 1;
|
|
|
2138 l.l_linger = 0;
|
|
|
2139
|
|
|
2140 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
|
2141 (const void *) &l, sizeof(struct linger)) == -1)
|
|
|
2142 {
|
|
|
2143 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2144 "setsockopt(SO_LINGER) failed");
|
|
|
2145 }
|
|
|
2146 }
|
|
|
2147 }
|
|
|
2148
|
|
10
|
2149 /* the variuos request strings were allocated from r->pool */
|
|
0
|
2150 ctx = log->data;
|
|
10
|
2151 ctx->request = NULL;
|
|
0
|
2152
|
|
|
2153 r->request_line.len = 0;
|
|
|
2154
|
|
|
2155 ngx_destroy_pool(r->pool);
|
|
|
2156 }
|
|
|
2157
|
|
|
2158
|
|
|
2159 #if (NGX_HTTP_SSL)
|
|
|
2160
|
|
|
2161 void ngx_ssl_close_handler(ngx_event_t *ev)
|
|
|
2162 {
|
|
|
2163 ngx_connection_t *c;
|
|
|
2164
|
|
|
2165 c = ev->data;
|
|
|
2166
|
|
|
2167 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0, "http ssl close handler");
|
|
|
2168
|
|
|
2169 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2170 return;
|
|
|
2171 }
|
|
|
2172
|
|
|
2173 ngx_http_close_connection(c);
|
|
|
2174 }
|
|
|
2175
|
|
|
2176 #endif
|
|
|
2177
|
|
|
2178
|
|
|
2179 void ngx_http_close_connection(ngx_connection_t *c)
|
|
|
2180 {
|
|
28
|
2181 ngx_pool_t *pool;
|
|
|
2182
|
|
0
|
2183 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2184 "close http connection: %d", c->fd);
|
|
|
2185
|
|
2
|
2186 #if (NGX_OPENSSL)
|
|
|
2187
|
|
|
2188 if (c->ssl) {
|
|
|
2189 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2190 c->read->event_handler = ngx_ssl_close_handler;
|
|
|
2191 c->write->event_handler = ngx_ssl_close_handler;
|
|
|
2192 return;
|
|
|
2193 }
|
|
|
2194 }
|
|
|
2195
|
|
|
2196 #endif
|
|
|
2197
|
|
0
|
2198 #if (NGX_STAT_STUB)
|
|
|
2199 (*ngx_stat_active)--;
|
|
|
2200 #endif
|
|
|
2201
|
|
28
|
2202 pool = c->pool;
|
|
|
2203
|
|
0
|
2204 ngx_close_connection(c);
|
|
28
|
2205
|
|
|
2206 ngx_destroy_pool(c->pool);
|
|
0
|
2207 }
|
|
|
2208
|
|
|
2209
|
|
|
2210 static void ngx_http_client_error(ngx_http_request_t *r,
|
|
|
2211 int client_error, int error)
|
|
|
2212 {
|
|
10
|
2213 u_char *p;
|
|
0
|
2214 ngx_http_log_ctx_t *ctx;
|
|
|
2215 ngx_http_core_srv_conf_t *cscf;
|
|
|
2216
|
|
|
2217 ctx = r->connection->log->data;
|
|
|
2218
|
|
|
2219 if (error == NGX_HTTP_REQUEST_TIME_OUT) {
|
|
|
2220 ngx_log_error(NGX_LOG_INFO, r->connection->log, NGX_ETIMEDOUT,
|
|
|
2221 "client timed out");
|
|
|
2222 r->connection->timedout = 1;
|
|
|
2223 ngx_http_close_request(r, error);
|
|
|
2224 ngx_http_close_connection(r->connection);
|
|
|
2225 return;
|
|
|
2226 }
|
|
|
2227
|
|
|
2228 r->connection->log->handler = NULL;
|
|
|
2229
|
|
10
|
2230 if (ctx->request) {
|
|
|
2231
|
|
0
|
2232 switch (client_error) {
|
|
|
2233
|
|
|
2234 case NGX_HTTP_PARSE_INVALID_HOST:
|
|
|
2235 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
10
|
2236 "client %V sent invalid \"Host\" header \"%V\", URL: \"%V\"",
|
|
|
2237 ctx->client, &r->headers_in.host->value,
|
|
|
2238 &ctx->request->unparsed_uri);
|
|
0
|
2239
|
|
|
2240 error = NGX_HTTP_INVALID_HOST;
|
|
|
2241
|
|
|
2242 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
2243
|
|
|
2244 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_CLOSE) {
|
|
|
2245 ngx_http_close_request(r, error);
|
|
|
2246 ngx_http_close_connection(r->connection);
|
|
|
2247 return;
|
|
|
2248 }
|
|
|
2249
|
|
|
2250 break;
|
|
|
2251
|
|
|
2252 case NGX_HTTP_PARSE_HTTP_TO_HTTPS:
|
|
|
2253 error = NGX_HTTP_TO_HTTPS;
|
|
10
|
2254 if (ctx->request->headers_in.referer) {
|
|
|
2255 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2256 "client %V sent plain HTTP request to HTTPS port, "
|
|
|
2257 "URL: \"%V\", referrer \"%V\"",
|
|
|
2258 ctx->client, &ctx->request->unparsed_uri,
|
|
|
2259 &ctx->request->headers_in.referer->value);
|
|
|
2260
|
|
|
2261 } else {
|
|
|
2262 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2263 "client %V sent plain HTTP request to HTTPS port, "
|
|
|
2264 "URL: \"%V\"", ctx->client, &ctx->request->unparsed_uri);
|
|
|
2265 }
|
|
|
2266
|
|
|
2267 break;
|
|
0
|
2268
|
|
|
2269 default:
|
|
|
2270 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2271 client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
|
|
10
|
2272 ctx->client, &ctx->request->unparsed_uri);
|
|
0
|
2273 }
|
|
|
2274
|
|
|
2275 } else {
|
|
10
|
2276
|
|
0
|
2277 if (error == NGX_HTTP_REQUEST_URI_TOO_LARGE) {
|
|
|
2278 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
2279 r->request_line.data = r->request_start;
|
|
10
|
2280
|
|
|
2281 } else {
|
|
|
2282 if (r->request_line.data == NULL) {
|
|
|
2283 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2284 if (*p == CR || *p == LF) {
|
|
|
2285 break;
|
|
|
2286 }
|
|
|
2287 }
|
|
|
2288
|
|
|
2289 r->request_line.len = p - r->request_start;
|
|
|
2290 r->request_line.data = r->request_start;
|
|
|
2291 }
|
|
0
|
2292 }
|
|
|
2293
|
|
|
2294 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2295 client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
|
|
10
|
2296 ctx->client, &r->request_line);
|
|
0
|
2297 }
|
|
|
2298
|
|
|
2299 r->connection->log->handler = ngx_http_log_error;
|
|
|
2300
|
|
|
2301 ngx_http_finalize_request(r, error);
|
|
|
2302 }
|
|
|
2303
|
|
|
2304
|
|
32
|
2305 static u_char *ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2306 {
|
|
32
|
2307 u_char *p;
|
|
|
2308 ngx_http_log_ctx_t *ctx;
|
|
10
|
2309
|
|
|
2310 p = buf;
|
|
|
2311
|
|
32
|
2312 ctx = log->data;
|
|
|
2313
|
|
|
2314 if (log->action) {
|
|
|
2315 p = ngx_snprintf(p, len, " while %s", log->action);
|
|
10
|
2316 len -= p - buf;
|
|
|
2317 }
|
|
|
2318
|
|
|
2319 p = ngx_snprintf(p, len, ", client: %V", ctx->client);
|
|
|
2320
|
|
|
2321 if (ctx->request == NULL) {
|
|
|
2322 return p;
|
|
0
|
2323 }
|
|
10
|
2324
|
|
|
2325 len -= p - buf;
|
|
|
2326
|
|
|
2327 p = ngx_snprintf(p, len, ", URL: \"%V\"", &ctx->request->unparsed_uri);
|
|
|
2328
|
|
|
2329 if (ctx->request->headers_in.referer == NULL) {
|
|
|
2330 return p;
|
|
|
2331 }
|
|
|
2332
|
|
|
2333 len -= p - buf;
|
|
|
2334
|
|
|
2335 return ngx_snprintf(p, len, ", referrer: \"%V\"",
|
|
|
2336 &ctx->request->headers_in.referer->value);
|
|
0
|
2337 }
|
