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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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10
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38 static u_char *ngx_http_log_error(void *data, 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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114 ctx->connection = c->number;
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10
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115 ctx->client = &c->addr_text;
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0
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116 ctx->action = "reading client request line";
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10
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117 ctx->request = NULL;
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0
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118 c->log->data = ctx;
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119 c->log->handler = ngx_http_log_error;
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120 c->log_error = NGX_ERROR_INFO;
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121
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122 rev = c->read;
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123 rev->event_handler = ngx_http_init_request;
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124
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125 /* STUB: epoll edge */ c->write->event_handler = ngx_http_empty_handler;
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126
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127 if (rev->ready) {
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128 /* the deferred accept(), rtsig, aio, iocp */
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129
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130 if (ngx_accept_mutex) {
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131 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
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132 ngx_http_close_connection(c);
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133 return;
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134 }
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135
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136 ngx_post_event(rev);
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137
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138 ngx_mutex_unlock(ngx_posted_events_mutex);
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139 return;
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140 }
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141
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142 #if (NGX_STAT_STUB)
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143 (*ngx_stat_reading)++;
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144 #endif
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145
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146 ngx_http_init_request(rev);
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147 return;
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148 }
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149
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150 ngx_add_timer(rev, c->listening->post_accept_timeout);
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151
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152 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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153 ngx_http_close_connection(c);
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154 return;
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155 }
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156
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157 #if 0
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158 /* TODO: learn SO_SNDBUF (to use in zerocopy) via kqueue's EV_CLEAR event */
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159
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160 c->write->ready = 0;
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161 c->write->event_handler = ngx_http_dummy;
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162
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163 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
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164 ngx_http_close_connection(c);
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165 return;
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166 }
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167 #endif
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168
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169 #if (NGX_STAT_STUB)
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170 (*ngx_stat_reading)++;
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171 #endif
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172
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173 }
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174
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175
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176 static void ngx_http_init_request(ngx_event_t *rev)
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177 {
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178 ngx_uint_t i;
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179 socklen_t len;
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28
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180 struct sockaddr_in sin;
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0
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181 ngx_connection_t *c;
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182 ngx_http_request_t *r;
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183 ngx_http_in_port_t *in_port;
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184 ngx_http_in_addr_t *in_addr;
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185 ngx_http_connection_t *hc;
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186 ngx_http_server_name_t *server_name;
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187 ngx_http_core_srv_conf_t *cscf;
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188 ngx_http_core_loc_conf_t *clcf;
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189 #if (NGX_HTTP_SSL)
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190 ngx_http_ssl_srv_conf_t *sscf;
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191 #endif
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192
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193 c = rev->data;
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194
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195 if (rev->timedout) {
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196 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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197
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198 #if (NGX_STAT_STUB)
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199 (*ngx_stat_reading)--;
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200 #endif
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201
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202 ngx_http_close_connection(c);
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203 return;
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204 }
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205
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206 hc = c->data;
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207
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208 if (hc) {
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209
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210 #if (NGX_STAT_STUB)
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211 (*ngx_stat_reading)++;
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212 #endif
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213
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214 } else {
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215 if (!(hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t)))) {
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216
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217 #if (NGX_STAT_STUB)
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218 (*ngx_stat_reading)--;
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219 #endif
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220
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221 ngx_http_close_connection(c);
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222 return;
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223 }
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224 }
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225
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226 r = hc->request;
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227
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228 if (r) {
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229 ngx_memzero(r, sizeof(ngx_http_request_t));
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230
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231 r->pipeline = hc->pipeline;
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232
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233 if (hc->nbusy) {
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234 r->header_in = hc->busy[0];
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235 }
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236
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237 } else {
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238 if (!(r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t)))) {
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239
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240 #if (NGX_STAT_STUB)
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241 (*ngx_stat_reading)--;
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242 #endif
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243
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244 ngx_http_close_connection(c);
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245 return;
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246 }
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247
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248 hc->request = r;
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249 }
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250
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251 #if (NGX_STAT_STUB)
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26
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252 (*ngx_stat_reading)--;
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0
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253 #endif
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254
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255 c->data = r;
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256 r->http_connection = hc;
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257
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258 c->sent = 0;
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259 r->signature = NGX_HTTP_MODULE;
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260
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261 /* find the server configuration for the address:port */
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262
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263 /* AF_INET only */
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264
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265 in_port = c->servers;
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266 in_addr = in_port->addrs.elts;
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267
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268 r->port = in_port->port;
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269 r->port_text = &in_port->port_text;
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270
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271 i = 0;
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272
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273 if (in_port->addrs.nelts > 1) {
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274
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275 /*
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276 * There are several addresses on this port and one of them
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277 * is the "*:port" wildcard so getsockname() is needed to determine
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278 * the server address.
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279 *
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280 * AcceptEx() already gave this address.
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281 */
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282
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10
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283 #if (NGX_WIN32)
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0
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284 if (c->local_sockaddr) {
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285 r->in_addr =
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286 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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287
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28
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288 } else
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0
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289 #endif
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28
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290 {
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0
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291 len = sizeof(struct sockaddr_in);
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28
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292 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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293 ngx_connection_error(c, ngx_socket_errno,
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294 "getsockname() failed");
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295 ngx_http_close_connection(c);
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296 return;
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297 }
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298
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28
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299 r->in_addr = sin.sin_addr.s_addr;
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0
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300 }
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301
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302 /* the last in_port->addrs address is "*" */
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303
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304 for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) {
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305 if (in_addr[i].addr == r->in_addr) {
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306 break;
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307 }
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308 }
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309
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310 } else {
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311 r->in_addr = in_addr[0].addr;
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312 }
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313
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26
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314 r->virtual_names = &in_addr[i];
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0
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315
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316 /* the default server configuration for the address:port */
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317 cscf = in_addr[i].core_srv_conf;
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318
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319 r->main_conf = cscf->ctx->main_conf;
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320 r->srv_conf = cscf->ctx->srv_conf;
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321 r->loc_conf = cscf->ctx->loc_conf;
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322
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323 rev->event_handler = ngx_http_process_request_line;
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324
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325 #if (NGX_HTTP_SSL)
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326
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327 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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328 if (sscf->enable) {
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329
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330 if (c->ssl == NULL) {
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331 if (ngx_ssl_create_session(sscf->ssl_ctx, c, NGX_SSL_BUFFER)
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332 == NGX_ERROR)
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333 {
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334 ngx_http_close_connection(c);
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335 return;
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336 }
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337
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26
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338 rev->event_handler = ngx_http_ssl_handshake;
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339
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0
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340 /*
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341 * The majority of browsers do not send the "close notify" alert.
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342 * Among them are MSIE, Mozilla, Netscape 4, Konqueror, and Links.
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343 * And what is more MSIE ignores the server's alert.
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344 *
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345 * Opera always sends the alert.
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346 */
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347
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348 c->ssl->no_rcv_shut = 1;
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349 }
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350
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351 r->filter_need_in_memory = 1;
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352 }
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353
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354 #endif
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355
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356 server_name = cscf->server_names.elts;
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6
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357 r->server_name = server_name->name;
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0
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358
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359 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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360 c->log->file = clcf->err_log->file;
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361 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
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362 c->log->log_level = clcf->err_log->log_level;
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363 }
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364
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365 if (c->buffer == NULL) {
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366 c->buffer = ngx_create_temp_buf(c->pool,
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367 cscf->client_header_buffer_size);
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368 if (c->buffer == NULL) {
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369 ngx_http_close_connection(c);
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370 return;
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371 }
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372 }
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373
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374 if (r->header_in == NULL) {
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375 r->header_in = c->buffer;
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376 }
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377
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378 if (!(r->pool = ngx_create_pool(cscf->request_pool_size, c->log))) {
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379 ngx_http_close_connection(c);
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380 return;
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381 }
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382
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383 if (ngx_array_init(&r->cleanup, r->pool, 5, sizeof(ngx_http_cleanup_t))
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384 == NGX_ERROR)
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385 {
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386 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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387 ngx_http_close_connection(c);
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388 return;
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389 }
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390
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391
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392 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
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393 sizeof(ngx_table_elt_t)) == NGX_ERROR)
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394 {
|
|
|
395 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
396 ngx_http_close_connection(c);
|
|
|
397 return;
|
|
|
398 }
|
|
|
399
|
|
|
400
|
|
|
401 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
402 if (r->ctx == NULL) {
|
|
|
403 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
404 ngx_http_close_connection(c);
|
|
|
405 return;
|
|
|
406 }
|
|
|
407
|
|
|
408 c->single_connection = 1;
|
|
|
409 r->connection = c;
|
|
|
410
|
|
|
411 r->file.fd = NGX_INVALID_FILE;
|
|
|
412
|
|
|
413 r->headers_in.content_length_n = -1;
|
|
|
414 r->headers_in.keep_alive_n = -1;
|
|
|
415 r->headers_out.content_length_n = -1;
|
|
|
416 r->headers_out.last_modified_time = -1;
|
|
|
417
|
|
|
418 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
419
|
|
|
420 #if (NGX_STAT_STUB)
|
|
26
|
421 (*ngx_stat_reading)++;
|
|
|
422 r->stat_reading = 1;
|
|
0
|
423 (*ngx_stat_requests)++;
|
|
|
424 #endif
|
|
|
425
|
|
|
426 rev->event_handler(rev);
|
|
|
427 }
|
|
|
428
|
|
|
429
|
|
|
430 #if (NGX_HTTP_SSL)
|
|
|
431
|
|
|
432 static void ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
|
433 {
|
|
10
|
434 u_char buf[1];
|
|
|
435 ssize_t n;
|
|
0
|
436 ngx_int_t rc;
|
|
|
437 ngx_connection_t *c;
|
|
|
438 ngx_http_request_t *r;
|
|
|
439
|
|
|
440 c = rev->data;
|
|
|
441 r = c->data;
|
|
|
442
|
|
|
443 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
444 "http check ssl handshake");
|
|
|
445
|
|
|
446 if (rev->timedout) {
|
|
|
447 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
448 return;
|
|
|
449 }
|
|
|
450
|
|
|
451 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
452
|
|
|
453 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
454 return;
|
|
|
455 }
|
|
|
456
|
|
|
457 if (n == 1) {
|
|
|
458 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
459 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
460 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
461
|
|
|
462 c->recv = ngx_ssl_recv;
|
|
|
463 c->send_chain = ngx_ssl_send_chain;
|
|
|
464
|
|
|
465 rc = ngx_ssl_handshake(c);
|
|
|
466
|
|
|
467 if (rc == NGX_ERROR) {
|
|
|
468 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
469 ngx_http_close_connection(r->connection);
|
|
|
470 return;
|
|
|
471 }
|
|
|
472
|
|
|
473 if (rc != NGX_OK) {
|
|
|
474 return;
|
|
|
475 }
|
|
|
476
|
|
|
477 } else {
|
|
|
478 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
479 "plain http");
|
|
|
480
|
|
|
481 r->plain_http = 1;
|
|
|
482 }
|
|
|
483 }
|
|
|
484
|
|
|
485 rev->event_handler = ngx_http_process_request_line;
|
|
|
486 ngx_http_process_request_line(rev);
|
|
|
487 }
|
|
|
488
|
|
|
489 #endif
|
|
|
490
|
|
|
491
|
|
|
492 static void ngx_http_process_request_line(ngx_event_t *rev)
|
|
|
493 {
|
|
|
494 ssize_t n;
|
|
|
495 ngx_int_t rc, rv;
|
|
|
496 ngx_connection_t *c;
|
|
|
497 ngx_http_request_t *r;
|
|
|
498 ngx_http_log_ctx_t *ctx;
|
|
|
499
|
|
|
500 c = rev->data;
|
|
|
501 r = c->data;
|
|
|
502
|
|
|
503 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
504 "http process request line");
|
|
|
505
|
|
|
506 if (rev->timedout) {
|
|
|
507 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
508 return;
|
|
|
509 }
|
|
|
510
|
|
|
511 rc = NGX_AGAIN;
|
|
|
512
|
|
|
513 for ( ;; ) {
|
|
|
514
|
|
|
515 if (rc == NGX_AGAIN) {
|
|
|
516 n = ngx_http_read_request_header(r);
|
|
|
517
|
|
|
518 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
519 return;
|
|
|
520 }
|
|
|
521 }
|
|
|
522
|
|
|
523 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
524
|
|
|
525 if (rc == NGX_OK) {
|
|
|
526
|
|
|
527 /* the request line has been parsed successfully */
|
|
|
528
|
|
10
|
529 r->request_line.len = r->request_end - r->request_start;
|
|
|
530 r->request_line.data = r->request_start;
|
|
|
531
|
|
0
|
532
|
|
|
533 if (r->args_start) {
|
|
|
534 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
535 } else {
|
|
|
536 r->uri.len = r->uri_end - r->uri_start;
|
|
|
537 }
|
|
|
538
|
|
18
|
539
|
|
2
|
540 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
541
|
|
|
542 if (!(r->uri.data = ngx_palloc(r->pool, r->uri.len + 1))) {
|
|
|
543 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
544 ngx_http_close_connection(c);
|
|
|
545 return;
|
|
|
546 }
|
|
|
547
|
|
0
|
548 rc = ngx_http_parse_complex_uri(r);
|
|
|
549
|
|
|
550 if (rc == NGX_HTTP_INTERNAL_SERVER_ERROR) {
|
|
|
551 ngx_http_close_request(r, rc);
|
|
|
552 ngx_http_close_connection(c);
|
|
|
553 return;
|
|
|
554 }
|
|
|
555
|
|
|
556 if (rc != NGX_OK) {
|
|
|
557 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
558 return;
|
|
|
559 }
|
|
|
560
|
|
|
561 } else {
|
|
10
|
562 r->uri.data = r->uri_start;
|
|
0
|
563 }
|
|
|
564
|
|
18
|
565
|
|
10
|
566 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
567 r->unparsed_uri.data = r->uri_start;
|
|
|
568
|
|
0
|
569
|
|
|
570 if (r->method == 0) {
|
|
|
571 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
572 r->method_name.data = r->request_line.data;
|
|
|
573 }
|
|
|
574
|
|
10
|
575
|
|
28
|
576 if (r->http_protocol.data) {
|
|
|
577 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
578 }
|
|
|
579
|
|
|
580
|
|
0
|
581 if (r->uri_ext) {
|
|
|
582 if (r->args_start) {
|
|
|
583 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
584 } else {
|
|
|
585 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
586 }
|
|
|
587
|
|
10
|
588 r->exten.data = r->uri_ext;
|
|
0
|
589 }
|
|
|
590
|
|
10
|
591
|
|
0
|
592 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
593 r->args.len = r->uri_end - r->args_start;
|
|
10
|
594 r->args.data = r->args_start;
|
|
0
|
595 }
|
|
|
596
|
|
10
|
597
|
|
|
598 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
599 "http request line: \"%V\"", &r->request_line);
|
|
|
600
|
|
0
|
601 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
602 "http uri: \"%V\"", &r->uri);
|
|
0
|
603
|
|
|
604 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
605 "http args: \"%V\"", &r->args);
|
|
0
|
606
|
|
|
607 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
608 "http exten: \"%V\"", &r->exten);
|
|
|
609
|
|
|
610 ctx = c->log->data;
|
|
|
611 ctx->request = r;
|
|
0
|
612
|
|
|
613 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
|
614 rev->event_handler = ngx_http_block_read;
|
|
|
615 ngx_http_handler(r);
|
|
|
616 return;
|
|
|
617 }
|
|
|
618
|
|
|
619
|
|
|
620 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
|
621 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
|
622 {
|
|
|
623 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
624 ngx_http_close_connection(c);
|
|
|
625 return;
|
|
|
626 }
|
|
|
627
|
|
|
628
|
|
|
629 if (ngx_array_init(&r->headers_in.cookies, r->pool, 5,
|
|
|
630 sizeof(ngx_table_elt_t *)) == NGX_ERROR)
|
|
|
631 {
|
|
|
632 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
633 ngx_http_close_connection(c);
|
|
|
634 return;
|
|
|
635 }
|
|
|
636
|
|
|
637 ctx->action = "reading client request headers";
|
|
|
638
|
|
|
639 rev->event_handler = ngx_http_process_request_headers;
|
|
|
640 ngx_http_process_request_headers(rev);
|
|
|
641
|
|
|
642 return;
|
|
|
643
|
|
|
644 } else if (rc != NGX_AGAIN) {
|
|
|
645
|
|
|
646 /* there was error while a request line parsing */
|
|
|
647
|
|
10
|
648 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
649
|
|
|
650 #if 0
|
|
0
|
651 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
652 if (*p == CR || *p == LF) {
|
|
|
653 break;
|
|
|
654 }
|
|
|
655 }
|
|
|
656
|
|
|
657 r->request_line.len = p - r->request_start;
|
|
|
658 r->request_line.data = r->request_start;
|
|
|
659
|
|
|
660 if (rc == NGX_HTTP_PARSE_INVALID_METHOD) {
|
|
|
661 r->http_version = NGX_HTTP_VERSION_10;
|
|
|
662 }
|
|
|
663
|
|
|
664 ngx_http_client_error(r, rc,
|
|
|
665 (rc == NGX_HTTP_PARSE_INVALID_METHOD) ?
|
|
|
666 NGX_HTTP_NOT_IMPLEMENTED:
|
|
|
667 NGX_HTTP_BAD_REQUEST);
|
|
10
|
668 #endif
|
|
|
669
|
|
0
|
670 return;
|
|
|
671 }
|
|
|
672
|
|
|
673 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
674
|
|
|
675 if (r->header_in->pos == r->header_in->end) {
|
|
|
676
|
|
|
677 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
678
|
|
|
679 if (rv == NGX_ERROR) {
|
|
|
680 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
681 ngx_http_close_connection(c);
|
|
|
682 return;
|
|
|
683 }
|
|
|
684
|
|
|
685 if (rv == NGX_DECLINED) {
|
|
|
686 ngx_http_client_error(r, NGX_HTTP_PARSE_TOO_LONG_URI,
|
|
|
687 NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
|
688 return;
|
|
|
689 }
|
|
|
690 }
|
|
|
691 }
|
|
|
692 }
|
|
|
693
|
|
|
694
|
|
|
695 static void ngx_http_process_request_headers(ngx_event_t *rev)
|
|
|
696 {
|
|
|
697 ssize_t n;
|
|
|
698 ngx_int_t rc, rv, i;
|
|
|
699 ngx_table_elt_t *h, **cookie;
|
|
|
700 ngx_connection_t *c;
|
|
|
701 ngx_http_request_t *r;
|
|
|
702
|
|
|
703 c = rev->data;
|
|
|
704 r = c->data;
|
|
|
705
|
|
|
706 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
707 "http process request header line");
|
|
|
708
|
|
|
709 if (rev->timedout) {
|
|
|
710 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
711 return;
|
|
|
712 }
|
|
|
713
|
|
|
714 rc = NGX_AGAIN;
|
|
|
715
|
|
|
716 for ( ;; ) {
|
|
|
717
|
|
|
718 if (rc == NGX_AGAIN) {
|
|
|
719
|
|
|
720 if (r->header_in->pos == r->header_in->end) {
|
|
|
721
|
|
|
722 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
723
|
|
|
724 if (rv == NGX_ERROR) {
|
|
|
725 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
726 ngx_http_close_connection(c);
|
|
|
727 return;
|
|
|
728 }
|
|
|
729
|
|
|
730 if (rv == NGX_DECLINED) {
|
|
|
731 ngx_http_client_error(r, NGX_HTTP_PARSE_TOO_LONG_HEADER,
|
|
|
732 NGX_HTTP_BAD_REQUEST);
|
|
|
733 return;
|
|
|
734 }
|
|
|
735 }
|
|
|
736
|
|
|
737 n = ngx_http_read_request_header(r);
|
|
|
738
|
|
|
739 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
740 return;
|
|
|
741 }
|
|
|
742 }
|
|
|
743
|
|
|
744 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
745
|
|
|
746 if (rc == NGX_OK) {
|
|
|
747
|
|
|
748 /* a header line has been parsed successfully */
|
|
|
749
|
|
|
750 r->headers_n++;
|
|
|
751
|
|
|
752 if (!(h = ngx_list_push(&r->headers_in.headers))) {
|
|
|
753 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
754 ngx_http_close_connection(c);
|
|
|
755 return;
|
|
|
756 }
|
|
|
757
|
|
|
758 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
759 h->key.data = r->header_name_start;
|
|
|
760 h->key.data[h->key.len] = '\0';
|
|
|
761
|
|
|
762 h->value.len = r->header_end - r->header_start;
|
|
|
763 h->value.data = r->header_start;
|
|
|
764 h->value.data[h->value.len] = '\0';
|
|
|
765
|
|
|
766 if (h->key.len == sizeof("Cookie") - 1
|
|
|
767 && ngx_strcasecmp(h->key.data, "Cookie") == 0)
|
|
|
768 {
|
|
|
769 if (!(cookie = ngx_array_push(&r->headers_in.cookies))) {
|
|
|
770 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
771 ngx_http_close_connection(c);
|
|
|
772 return;
|
|
|
773 }
|
|
|
774
|
|
|
775 *cookie = h;
|
|
|
776
|
|
|
777 } else {
|
|
|
778
|
|
|
779 for (i = 0; ngx_http_headers_in[i].name.len != 0; i++) {
|
|
|
780 if (ngx_http_headers_in[i].name.len != h->key.len) {
|
|
|
781 continue;
|
|
|
782 }
|
|
|
783
|
|
|
784 if (ngx_strcasecmp(ngx_http_headers_in[i].name.data,
|
|
|
785 h->key.data) == 0)
|
|
|
786 {
|
|
|
787 *((ngx_table_elt_t **) ((char *) &r->headers_in
|
|
|
788 + ngx_http_headers_in[i].offset)) = h;
|
|
|
789 break;
|
|
|
790 }
|
|
|
791 }
|
|
|
792 }
|
|
|
793
|
|
|
794 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
795 "http header: \"%V: %V\"",
|
|
|
796 &h->key, &h->value);
|
|
0
|
797
|
|
|
798 continue;
|
|
|
799
|
|
|
800 } else if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
|
801
|
|
|
802 /* a whole header has been parsed successfully */
|
|
|
803
|
|
|
804 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
805 "http header done");
|
|
|
806
|
|
24
|
807 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
808
|
|
0
|
809 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
810
|
|
|
811 rc = ngx_http_process_request_header(r);
|
|
|
812
|
|
|
813 if (rc != NGX_OK) {
|
|
|
814 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
815 return;
|
|
|
816 }
|
|
|
817
|
|
|
818 if (rev->timer_set) {
|
|
|
819 ngx_del_timer(rev);
|
|
|
820 }
|
|
|
821
|
|
|
822 #if (NGX_STAT_STUB)
|
|
|
823 (*ngx_stat_reading)--;
|
|
|
824 r->stat_reading = 0;
|
|
|
825 (*ngx_stat_writing)++;
|
|
|
826 r->stat_writing = 1;
|
|
|
827 #endif
|
|
|
828
|
|
|
829 rev->event_handler = ngx_http_block_read;
|
|
|
830 ngx_http_handler(r);
|
|
|
831 return;
|
|
|
832
|
|
|
833 } else if (rc != NGX_AGAIN) {
|
|
|
834
|
|
|
835 /* there was error while a header line parsing */
|
|
|
836
|
|
|
837 #if (NGX_DEBUG)
|
|
|
838 if (rc == NGX_HTTP_PARSE_INVALID_HEADER
|
|
|
839 && (rev->log->log_level & NGX_LOG_DEBUG_HTTP))
|
|
|
840 {
|
|
|
841 u_char *p;
|
|
|
842 for (p = r->header_name_start;
|
|
|
843 p < r->header_in->last - 1;
|
|
|
844 p++)
|
|
|
845 {
|
|
|
846 if (*p == LF) {
|
|
|
847 break;
|
|
|
848 }
|
|
|
849 }
|
|
|
850 *p = '\0';
|
|
|
851 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
852 "http invalid header: \"%s\"",
|
|
|
853 r->header_name_start);
|
|
|
854 }
|
|
|
855 #endif
|
|
|
856
|
|
|
857 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
858 return;
|
|
|
859 }
|
|
|
860
|
|
|
861 /* NGX_AGAIN: a header line parsing is still not complete */
|
|
|
862
|
|
|
863 }
|
|
|
864 }
|
|
|
865
|
|
|
866
|
|
|
867 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r)
|
|
|
868 {
|
|
|
869 ssize_t n;
|
|
|
870 ngx_event_t *rev;
|
|
|
871 ngx_http_core_srv_conf_t *cscf;
|
|
|
872
|
|
|
873 rev = r->connection->read;
|
|
|
874
|
|
|
875 n = r->header_in->last - r->header_in->pos;
|
|
|
876
|
|
|
877 if (n > 0) {
|
|
|
878 return n;
|
|
|
879 }
|
|
|
880
|
|
|
881 if (!rev->ready) {
|
|
|
882 return NGX_AGAIN;
|
|
|
883 }
|
|
|
884
|
|
|
885 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
886 r->header_in->end - r->header_in->last);
|
|
|
887
|
|
|
888 if (n == NGX_AGAIN) {
|
|
|
889 if (!r->header_timeout_set) {
|
|
|
890 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
891 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
892 r->header_timeout_set = 1;
|
|
|
893 }
|
|
|
894
|
|
|
895 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
896 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
897 ngx_http_close_connection(r->connection);
|
|
|
898 return NGX_ERROR;
|
|
|
899 }
|
|
|
900
|
|
|
901 return NGX_AGAIN;
|
|
|
902 }
|
|
|
903
|
|
|
904 if (n == 0) {
|
|
|
905 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
906 "client closed prematurely connection");
|
|
|
907 }
|
|
|
908
|
|
|
909 if (n == 0 || n == NGX_ERROR) {
|
|
|
910 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
911 ngx_http_close_connection(r->connection);
|
|
|
912 return NGX_ERROR;
|
|
|
913 }
|
|
|
914
|
|
|
915 r->header_in->last += n;
|
|
|
916
|
|
|
917 return n;
|
|
|
918 }
|
|
|
919
|
|
|
920
|
|
|
921 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
922 ngx_uint_t request_line)
|
|
|
923 {
|
|
|
924 u_char *old, *new;
|
|
|
925 ngx_buf_t *b;
|
|
|
926 ngx_http_connection_t *hc;
|
|
|
927 ngx_http_core_srv_conf_t *cscf;
|
|
|
928
|
|
|
929 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
930 "http alloc large header buffer");
|
|
|
931
|
|
|
932 if (request_line && r->state == 0) {
|
|
|
933
|
|
|
934 /* the client fills up the buffer with "\r\n" */
|
|
|
935
|
|
24
|
936 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
937
|
|
0
|
938 r->header_in->pos = r->header_in->start;
|
|
|
939 r->header_in->last = r->header_in->start;
|
|
|
940
|
|
|
941 return NGX_OK;
|
|
|
942 }
|
|
|
943
|
|
|
944 old = request_line ? r->request_start : r->header_name_start;
|
|
|
945
|
|
|
946 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
947
|
|
|
948 if (r->state != 0
|
|
|
949 && (size_t) (r->header_in->pos - old)
|
|
|
950 >= cscf->large_client_header_buffers.size)
|
|
|
951 {
|
|
|
952 return NGX_DECLINED;
|
|
|
953 }
|
|
|
954
|
|
|
955 hc = r->http_connection;
|
|
|
956
|
|
|
957 if (hc->nfree) {
|
|
|
958 b = hc->free[--hc->nfree];
|
|
|
959
|
|
|
960 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
961 "http large header free: %p %uz",
|
|
0
|
962 b->pos, b->end - b->last);
|
|
|
963
|
|
|
964 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
965
|
|
|
966 if (hc->busy == NULL) {
|
|
|
967 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
968 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
969 if (hc->busy == NULL) {
|
|
|
970 return NGX_ERROR;
|
|
|
971 }
|
|
|
972 }
|
|
|
973
|
|
|
974 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
975 cscf->large_client_header_buffers.size);
|
|
|
976 if (b == NULL) {
|
|
|
977 return NGX_ERROR;
|
|
|
978 }
|
|
|
979
|
|
|
980 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
981 "http large header alloc: %p %uz",
|
|
0
|
982 b->pos, b->end - b->last);
|
|
|
983
|
|
|
984 } else {
|
|
|
985 return NGX_DECLINED;
|
|
|
986 }
|
|
|
987
|
|
|
988 hc->busy[hc->nbusy++] = b;
|
|
|
989
|
|
|
990 if (r->state == 0) {
|
|
|
991 /*
|
|
|
992 * r->state == 0 means that a header line was parsed successfully
|
|
|
993 * and we do not need to copy incomplete header line and
|
|
|
994 * to relocate the parser header pointers
|
|
|
995 */
|
|
|
996
|
|
24
|
997 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
998
|
|
0
|
999 r->header_in = b;
|
|
|
1000
|
|
|
1001 return NGX_OK;
|
|
|
1002 }
|
|
|
1003
|
|
|
1004 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1005 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1006
|
|
24
|
1007 r->request_length += old - r->header_in->start;
|
|
|
1008
|
|
0
|
1009 new = b->start;
|
|
|
1010
|
|
|
1011 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1012
|
|
|
1013 b->pos = new + (r->header_in->pos - old);
|
|
|
1014 b->last = new + (r->header_in->pos - old);
|
|
|
1015
|
|
|
1016 if (request_line) {
|
|
|
1017 r->request_start = new;
|
|
|
1018
|
|
|
1019 if (r->request_end) {
|
|
|
1020 r->request_end = new + (r->request_end - old);
|
|
|
1021 }
|
|
|
1022
|
|
|
1023 r->method_end = new + (r->method_end - old);
|
|
|
1024
|
|
|
1025 r->uri_start = new + (r->uri_start - old);
|
|
|
1026 r->uri_end = new + (r->uri_end - old);
|
|
|
1027
|
|
|
1028 if (r->schema_start) {
|
|
|
1029 r->schema_start = new + (r->schema_start - old);
|
|
|
1030 r->schema_end = new + (r->schema_end - old);
|
|
|
1031 }
|
|
|
1032
|
|
|
1033 if (r->host_start) {
|
|
|
1034 r->host_start = new + (r->host_start - old);
|
|
|
1035 r->host_end = new + (r->host_end - old);
|
|
|
1036 }
|
|
|
1037
|
|
|
1038 if (r->port_start) {
|
|
|
1039 r->port_start = new + (r->port_start - old);
|
|
|
1040 r->port_end = new + (r->port_end - old);
|
|
|
1041 }
|
|
|
1042
|
|
|
1043 if (r->uri_ext) {
|
|
|
1044 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1045 }
|
|
|
1046
|
|
|
1047 if (r->args_start) {
|
|
|
1048 r->args_start = new + (r->args_start - old);
|
|
|
1049 }
|
|
|
1050
|
|
|
1051 } else {
|
|
|
1052 r->header_name_start = new;
|
|
|
1053 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1054 r->header_start = new + (r->header_start - old);
|
|
|
1055 r->header_end = new + (r->header_end - old);
|
|
|
1056 }
|
|
|
1057
|
|
|
1058 r->header_in = b;
|
|
|
1059
|
|
|
1060 return NGX_OK;
|
|
|
1061 }
|
|
|
1062
|
|
|
1063
|
|
|
1064 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r)
|
|
|
1065 {
|
|
26
|
1066 u_char *ua, *user_agent, ch;
|
|
|
1067 size_t len;
|
|
0
|
1068
|
|
|
1069 if (r->headers_in.host) {
|
|
|
1070 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1071 ch = r->headers_in.host->value.data[len];
|
|
|
1072
|
|
|
1073 if (ch == ':') {
|
|
0
|
1074 break;
|
|
|
1075 }
|
|
26
|
1076
|
|
|
1077 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
|
0
|
1078 }
|
|
|
1079 r->headers_in.host_name_len = len;
|
|
|
1080
|
|
26
|
1081 if (ngx_http_find_virtual_server(r) != NGX_OK) {
|
|
|
1082 return NGX_HTTP_PARSE_INVALID_HOST;
|
|
0
|
1083 }
|
|
|
1084
|
|
|
1085 } else {
|
|
|
1086 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
|
1087 return NGX_HTTP_PARSE_NO_HOST_HEADER;
|
|
|
1088 }
|
|
|
1089 r->headers_in.host_name_len = 0;
|
|
|
1090 }
|
|
|
1091
|
|
|
1092 if (r->headers_in.content_length) {
|
|
|
1093 r->headers_in.content_length_n =
|
|
|
1094 ngx_atoi(r->headers_in.content_length->value.data,
|
|
|
1095 r->headers_in.content_length->value.len);
|
|
|
1096
|
|
|
1097 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
|
1098 return NGX_HTTP_PARSE_INVALID_CL_HEADER;
|
|
|
1099 }
|
|
|
1100 }
|
|
|
1101
|
|
|
1102 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n <= 0) {
|
|
|
1103 return NGX_HTTP_PARSE_POST_WO_CL_HEADER;
|
|
|
1104 }
|
|
|
1105
|
|
|
1106 if (r->plain_http) {
|
|
|
1107 return NGX_HTTP_PARSE_HTTP_TO_HTTPS;
|
|
|
1108 }
|
|
|
1109
|
|
|
1110 if (r->headers_in.connection) {
|
|
|
1111 if (r->headers_in.connection->value.len == 5
|
|
|
1112 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
|
1113 == 0)
|
|
|
1114 {
|
|
|
1115 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1116
|
|
|
1117 } else if (r->headers_in.connection->value.len == 10
|
|
|
1118 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
|
1119 "keep-alive") == 0)
|
|
|
1120 {
|
|
|
1121 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1122
|
|
|
1123 if (r->headers_in.keep_alive) {
|
|
|
1124 r->headers_in.keep_alive_n =
|
|
|
1125 ngx_atoi(r->headers_in.keep_alive->value.data,
|
|
|
1126 r->headers_in.keep_alive->value.len);
|
|
|
1127 }
|
|
|
1128 }
|
|
|
1129 }
|
|
|
1130
|
|
|
1131 if (r->headers_in.user_agent) {
|
|
|
1132
|
|
|
1133 /*
|
|
|
1134 * check some widespread browsers while the headers are still
|
|
|
1135 * in CPU cache
|
|
|
1136 */
|
|
|
1137
|
|
|
1138 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1139
|
|
|
1140 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1141
|
|
|
1142 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1143
|
|
|
1144 r->headers_in.msie = 1;
|
|
|
1145
|
|
|
1146 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1147 r->headers_in.msie4 = 1;
|
|
|
1148 }
|
|
|
1149
|
|
|
1150 #if 0
|
|
|
1151 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1152 if (c->ssl) {
|
|
|
1153 r->connection->ssl->no_send_shut = 1;
|
|
|
1154 }
|
|
0
|
1155 #endif
|
|
|
1156 }
|
|
|
1157
|
|
|
1158 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1159 r->headers_in.opera = 1;
|
|
|
1160 r->headers_in.msie = 0;
|
|
|
1161 r->headers_in.msie4 = 0;
|
|
|
1162 }
|
|
|
1163
|
|
|
1164 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1165
|
|
|
1166 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1167 r->headers_in.gecko = 1;
|
|
|
1168
|
|
|
1169 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1170 r->headers_in.konqueror = 1;
|
|
|
1171 }
|
|
|
1172 }
|
|
|
1173 }
|
|
|
1174
|
|
|
1175 return NGX_OK;
|
|
|
1176 }
|
|
|
1177
|
|
|
1178
|
|
26
|
1179 static ngx_int_t ngx_http_find_virtual_server(ngx_http_request_t *r)
|
|
|
1180 {
|
|
|
1181 ngx_int_t rc;
|
|
|
1182 ngx_uint_t i, n, key, found;
|
|
|
1183 ngx_http_server_name_t *name;
|
|
|
1184 ngx_http_core_main_conf_t *cmcf;
|
|
|
1185 ngx_http_core_srv_conf_t *cscf;
|
|
|
1186 ngx_http_core_loc_conf_t *clcf;
|
|
|
1187
|
|
|
1188 if (r->virtual_names->hash) {
|
|
|
1189 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
1190
|
|
|
1191 ngx_http_server_names_hash_key(key,
|
|
|
1192 r->headers_in.host->value.data,
|
|
|
1193 r->headers_in.host_name_len,
|
|
|
1194 cmcf->server_names_hash);
|
|
|
1195
|
|
|
1196 name = r->virtual_names->hash[key].elts;
|
|
|
1197 n = r->virtual_names->hash[key].nelts;
|
|
|
1198
|
|
|
1199 } else {
|
|
|
1200 name = r->virtual_names->names.elts;
|
|
|
1201 n = r->virtual_names->names.nelts;
|
|
|
1202 }
|
|
|
1203
|
|
|
1204 found = 0;
|
|
|
1205
|
|
|
1206 for (i = 0; i < n; i++) {
|
|
|
1207
|
|
|
1208 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1209 "server name: %V", &name[i].name);
|
|
|
1210
|
|
|
1211 if (r->headers_in.host_name_len != name[i].name.len) {
|
|
|
1212 continue;
|
|
|
1213 }
|
|
|
1214
|
|
|
1215 rc = ngx_strncmp(r->headers_in.host->value.data,
|
|
|
1216 name[i].name.data, name[i].name.len);
|
|
|
1217
|
|
|
1218 if (rc == 0) {
|
|
|
1219 r->server_name = name[i].name;
|
|
|
1220
|
|
|
1221 found = 1;
|
|
|
1222 break;
|
|
|
1223 }
|
|
|
1224
|
|
|
1225 if (rc < 0) {
|
|
|
1226 /* the server names are lexicographically sorted */
|
|
|
1227 break;
|
|
|
1228 }
|
|
|
1229 }
|
|
|
1230
|
|
|
1231 if (!found && r->virtual_names->wildcards.nelts) {
|
|
|
1232
|
|
|
1233 name = r->virtual_names->wildcards.elts;
|
|
|
1234 for (i = 0; i < r->virtual_names->wildcards.nelts; i++) {
|
|
|
1235
|
|
|
1236 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1237 "server name: %V", &name[i].name);
|
|
|
1238
|
|
|
1239 if (r->headers_in.host_name_len <= name[i].name.len) {
|
|
|
1240 continue;
|
|
|
1241 }
|
|
|
1242
|
|
|
1243 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1244 "server name: %s",
|
|
|
1245 r->headers_in.host->value.data
|
|
|
1246 + (r->headers_in.host_name_len - name[i].name.len));
|
|
|
1247
|
|
|
1248 if (ngx_strncmp(r->headers_in.host->value.data
|
|
|
1249 + (r->headers_in.host_name_len - name[i].name.len),
|
|
|
1250 name[i].name.data, name[i].name.len) == 0)
|
|
|
1251 {
|
|
|
1252 r->server_name.len = r->headers_in.host_name_len;
|
|
|
1253 r->server_name.data = r->headers_in.host->value.data;
|
|
|
1254
|
|
|
1255 found = 1;
|
|
|
1256 break;
|
|
|
1257 }
|
|
|
1258 }
|
|
|
1259 }
|
|
|
1260
|
|
|
1261 if (found) {
|
|
|
1262 r->srv_conf = name[i].core_srv_conf->ctx->srv_conf;
|
|
|
1263 r->loc_conf = name[i].core_srv_conf->ctx->loc_conf;
|
|
|
1264
|
|
|
1265 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1266 r->connection->log->file = clcf->err_log->file;
|
|
|
1267
|
|
|
1268 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1269 r->connection->log->log_level = clcf->err_log->log_level;
|
|
|
1270 }
|
|
|
1271
|
|
|
1272 return NGX_OK;
|
|
|
1273 }
|
|
|
1274
|
|
|
1275 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1276
|
|
|
1277 if (cscf->restrict_host_names != NGX_HTTP_RESTRICT_HOST_OFF) {
|
|
|
1278 return NGX_ERROR;
|
|
|
1279 }
|
|
|
1280
|
|
|
1281 return NGX_OK;
|
|
|
1282 }
|
|
|
1283
|
|
|
1284
|
|
0
|
1285 void ngx_http_finalize_request(ngx_http_request_t *r, int rc)
|
|
|
1286 {
|
|
|
1287 ngx_http_core_loc_conf_t *clcf;
|
|
|
1288
|
|
26
|
1289 /* r may be already destroyed when rc == NGX_DONE */
|
|
0
|
1290
|
|
|
1291 if (rc == NGX_DONE || r->main) {
|
|
|
1292 return;
|
|
|
1293 }
|
|
|
1294
|
|
|
1295 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1296 "http finalize request: %d", rc);
|
|
|
1297
|
|
|
1298 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
|
|
|
1299
|
|
|
1300 if (r->connection->read->timer_set) {
|
|
|
1301 ngx_del_timer(r->connection->read);
|
|
|
1302 }
|
|
|
1303
|
|
|
1304 if (r->connection->write->timer_set) {
|
|
|
1305 ngx_del_timer(r->connection->write);
|
|
|
1306 }
|
|
|
1307
|
|
|
1308 if (rc == NGX_HTTP_CLIENT_CLOSED_REQUEST || r->closed) {
|
|
|
1309 ngx_http_close_request(r, 0);
|
|
|
1310 ngx_http_close_connection(r->connection);
|
|
|
1311 return;
|
|
|
1312 }
|
|
|
1313
|
|
|
1314 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1315
|
|
|
1316 return;
|
|
|
1317
|
|
|
1318 } else if (rc == NGX_ERROR) {
|
|
|
1319 ngx_http_close_request(r, 0);
|
|
|
1320 ngx_http_close_connection(r->connection);
|
|
|
1321 return;
|
|
|
1322
|
|
|
1323 } else if (rc == NGX_AGAIN) {
|
|
|
1324 ngx_http_set_write_handler(r);
|
|
|
1325 return;
|
|
|
1326 }
|
|
|
1327
|
|
|
1328 if (r->connection->read->timer_set) {
|
|
|
1329 ngx_del_timer(r->connection->read);
|
|
|
1330 }
|
|
|
1331
|
|
|
1332 if (r->connection->write->timer_set) {
|
|
|
1333 r->connection->write->delayed = 0;
|
|
|
1334 ngx_del_timer(r->connection->write);
|
|
|
1335 }
|
|
|
1336
|
|
|
1337 if (r->connection->read->pending_eof) {
|
|
22
|
1338 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1339 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log,
|
|
|
1340 r->connection->read->kq_errno,
|
|
|
1341 "kevent() reported about an closed connection");
|
|
|
1342 #endif
|
|
|
1343 ngx_http_close_request(r, 0);
|
|
|
1344 ngx_http_close_connection(r->connection);
|
|
|
1345 return;
|
|
|
1346 }
|
|
|
1347
|
|
|
1348 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1349
|
|
|
1350 if (!ngx_terminate
|
|
|
1351 && !ngx_exiting
|
|
|
1352 && r->keepalive != 0
|
|
|
1353 && clcf->keepalive_timeout > 0)
|
|
|
1354 {
|
|
|
1355 ngx_http_set_keepalive(r);
|
|
|
1356 return;
|
|
|
1357
|
|
|
1358 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1359 ngx_http_set_lingering_close(r);
|
|
|
1360 return;
|
|
|
1361 }
|
|
|
1362
|
|
|
1363 ngx_http_close_request(r, 0);
|
|
|
1364 ngx_http_close_connection(r->connection);
|
|
|
1365 }
|
|
|
1366
|
|
|
1367
|
|
|
1368 static void ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
|
1369 {
|
|
|
1370 ngx_event_t *wev;
|
|
|
1371 ngx_http_core_loc_conf_t *clcf;
|
|
|
1372
|
|
|
1373 wev = r->connection->write;
|
|
|
1374 wev->event_handler = ngx_http_writer;
|
|
|
1375
|
|
|
1376 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1377
|
|
|
1378 if (wev->ready && wev->delayed) {
|
|
|
1379 return;
|
|
|
1380 }
|
|
|
1381
|
|
|
1382 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1383 ngx_http_core_module);
|
|
|
1384 if (!wev->delayed) {
|
|
|
1385 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1386 }
|
|
|
1387
|
|
2
|
1388 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1389 ngx_http_close_request(r, 0);
|
|
|
1390 ngx_http_close_connection(r->connection);
|
|
|
1391 }
|
|
|
1392
|
|
|
1393 return;
|
|
|
1394 }
|
|
|
1395
|
|
|
1396
|
|
|
1397 void ngx_http_writer(ngx_event_t *wev)
|
|
|
1398 {
|
|
|
1399 int rc;
|
|
|
1400 ngx_connection_t *c;
|
|
|
1401 ngx_http_request_t *r;
|
|
|
1402 ngx_http_core_loc_conf_t *clcf;
|
|
|
1403
|
|
|
1404 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http writer handler");
|
|
|
1405
|
|
|
1406 c = wev->data;
|
|
|
1407 r = c->data;
|
|
|
1408
|
|
|
1409 if (wev->timedout) {
|
|
|
1410 if (!wev->delayed) {
|
|
|
1411 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
1412 return;
|
|
|
1413 }
|
|
|
1414
|
|
|
1415 wev->timedout = 0;
|
|
|
1416 wev->delayed = 0;
|
|
|
1417
|
|
|
1418 if (!wev->ready) {
|
|
|
1419 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1420 ngx_http_core_module);
|
|
|
1421 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1422
|
|
2
|
1423 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1424 ngx_http_close_request(r, 0);
|
|
|
1425 ngx_http_close_connection(r->connection);
|
|
|
1426 }
|
|
|
1427
|
|
|
1428 return;
|
|
|
1429 }
|
|
|
1430
|
|
|
1431 } else {
|
|
|
1432 if (wev->delayed) {
|
|
|
1433 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1434 "http writer delayed");
|
|
|
1435
|
|
|
1436 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1437 ngx_http_core_module);
|
|
2
|
1438
|
|
|
1439 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1440 ngx_http_close_request(r, 0);
|
|
|
1441 ngx_http_close_connection(r->connection);
|
|
|
1442 }
|
|
|
1443
|
|
|
1444 return;
|
|
|
1445 }
|
|
|
1446 }
|
|
|
1447
|
|
|
1448 rc = ngx_http_output_filter(r, NULL);
|
|
|
1449
|
|
|
1450 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1451 "http writer output filter: %d", rc);
|
|
|
1452
|
|
|
1453 if (rc == NGX_AGAIN) {
|
|
|
1454 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1455 ngx_http_core_module);
|
|
|
1456 if (!wev->ready && !wev->delayed) {
|
|
|
1457 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1458 }
|
|
|
1459
|
|
2
|
1460 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1461 ngx_http_close_request(r, 0);
|
|
|
1462 ngx_http_close_connection(r->connection);
|
|
|
1463 }
|
|
|
1464
|
|
|
1465 return;
|
|
|
1466 }
|
|
|
1467
|
|
|
1468 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http writer done");
|
|
|
1469
|
|
|
1470 ngx_http_finalize_request(r, rc);
|
|
|
1471 }
|
|
|
1472
|
|
|
1473
|
|
|
1474 static void ngx_http_block_read(ngx_event_t *rev)
|
|
|
1475 {
|
|
|
1476 ngx_connection_t *c;
|
|
|
1477 ngx_http_request_t *r;
|
|
|
1478
|
|
|
1479 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http read blocked");
|
|
|
1480
|
|
|
1481 /* aio does not call this handler */
|
|
|
1482
|
|
|
1483 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
|
|
|
1484 if (ngx_del_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
1485 c = rev->data;
|
|
|
1486 r = c->data;
|
|
|
1487 ngx_http_close_request(r, 0);
|
|
|
1488 ngx_http_close_connection(c);
|
|
|
1489 }
|
|
|
1490 }
|
|
|
1491 }
|
|
|
1492
|
|
|
1493
|
|
|
1494 ngx_int_t ngx_http_discard_body(ngx_http_request_t *r)
|
|
|
1495 {
|
|
|
1496 ssize_t size;
|
|
|
1497 ngx_event_t *rev;
|
|
|
1498
|
|
|
1499 rev = r->connection->read;
|
|
|
1500
|
|
|
1501 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
|
1502
|
|
|
1503 if (rev->timer_set) {
|
|
|
1504 ngx_del_timer(rev);
|
|
|
1505 }
|
|
|
1506
|
|
|
1507 if (r->headers_in.content_length_n <= 0) {
|
|
|
1508 return NGX_OK;
|
|
|
1509 }
|
|
|
1510
|
|
|
1511 size = r->header_in->last - r->header_in->pos;
|
|
|
1512
|
|
|
1513 if (size) {
|
|
|
1514 if (r->headers_in.content_length_n > size) {
|
|
|
1515 r->headers_in.content_length_n -= size;
|
|
|
1516
|
|
|
1517 } else {
|
|
|
1518 r->header_in->pos += r->headers_in.content_length_n;
|
|
|
1519 r->headers_in.content_length_n = 0;
|
|
|
1520 return NGX_OK;
|
|
|
1521 }
|
|
|
1522 }
|
|
|
1523
|
|
|
1524 rev->event_handler = ngx_http_read_discarded_body_event;
|
|
|
1525
|
|
|
1526 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1527 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1528 }
|
|
|
1529
|
|
|
1530 return ngx_http_read_discarded_body(r);
|
|
|
1531 }
|
|
|
1532
|
|
|
1533
|
|
|
1534 static void ngx_http_read_discarded_body_event(ngx_event_t *rev)
|
|
|
1535 {
|
|
|
1536 ngx_int_t rc;
|
|
|
1537 ngx_connection_t *c;
|
|
|
1538 ngx_http_request_t *r;
|
|
|
1539
|
|
|
1540 c = rev->data;
|
|
|
1541 r = c->data;
|
|
|
1542
|
|
|
1543 rc = ngx_http_read_discarded_body(r);
|
|
|
1544
|
|
|
1545 if (rc == NGX_AGAIN) {
|
|
|
1546 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1547 ngx_http_close_request(r, rc);
|
|
|
1548 ngx_http_close_connection(c);
|
|
|
1549 return;
|
|
|
1550 }
|
|
|
1551 }
|
|
|
1552
|
|
|
1553 if (rc != NGX_OK) {
|
|
|
1554 ngx_http_close_request(r, rc);
|
|
|
1555 ngx_http_close_connection(c);
|
|
|
1556 }
|
|
|
1557 }
|
|
|
1558
|
|
|
1559
|
|
|
1560 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r)
|
|
|
1561 {
|
|
|
1562 ssize_t size, n;
|
|
|
1563 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
|
1564
|
|
|
1565 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1566 "http read discarded body");
|
|
|
1567
|
|
|
1568 if (r->headers_in.content_length_n == 0) {
|
|
|
1569 return NGX_OK;
|
|
|
1570 }
|
|
|
1571
|
|
|
1572
|
|
|
1573 size = r->headers_in.content_length_n;
|
|
|
1574
|
|
|
1575 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
|
1576 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
|
1577 }
|
|
|
1578
|
|
|
1579 n = r->connection->recv(r->connection, buffer, size);
|
|
|
1580
|
|
|
1581 if (n == NGX_ERROR) {
|
|
|
1582
|
|
|
1583 r->closed = 1;
|
|
|
1584
|
|
|
1585 /*
|
|
|
1586 * if a client request body is discarded then we already set
|
|
|
1587 * some HTTP response code for client and we can ignore the error
|
|
|
1588 */
|
|
|
1589
|
|
|
1590 return NGX_OK;
|
|
|
1591 }
|
|
|
1592
|
|
|
1593 if (n == NGX_AGAIN) {
|
|
|
1594 return NGX_AGAIN;
|
|
|
1595 }
|
|
|
1596
|
|
|
1597 r->headers_in.content_length_n -= n;
|
|
|
1598
|
|
|
1599 return NGX_OK;
|
|
|
1600 }
|
|
|
1601
|
|
|
1602
|
|
|
1603 static void ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
|
1604 {
|
|
2
|
1605 int tcp_nodelay;
|
|
0
|
1606 ngx_int_t i;
|
|
|
1607 ngx_buf_t *b, *f;
|
|
|
1608 ngx_event_t *rev, *wev;
|
|
|
1609 ngx_connection_t *c;
|
|
|
1610 ngx_http_connection_t *hc;
|
|
|
1611 ngx_http_log_ctx_t *ctx;
|
|
|
1612 ngx_http_core_srv_conf_t *cscf;
|
|
|
1613 ngx_http_core_loc_conf_t *clcf;
|
|
|
1614
|
|
|
1615 c = r->connection;
|
|
|
1616 rev = c->read;
|
|
|
1617
|
|
|
1618 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1619
|
|
10
|
1620 ctx = c->log->data;
|
|
0
|
1621 ctx->action = "closing request";
|
|
|
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;
|
|
|
1685 ctx->action = "reading client pipelined request line";
|
|
|
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
|
|
|
1763 ctx->action = "keepalive";
|
|
|
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
|
|
|
1779 if (tcp_nodelay && clcf->tcp_nodelay && !c->tcp_nodelay) {
|
|
|
1780
|
|
|
1781 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1782
|
|
|
1783 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
1784 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
1785 {
|
|
|
1786 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1787 "setsockopt(TCP_NODELAY) failed");
|
|
|
1788 ngx_http_close_connection(c);
|
|
|
1789 return;
|
|
2
|
1790 }
|
|
22
|
1791
|
|
|
1792 c->tcp_nodelay = 1;
|
|
0
|
1793 }
|
|
|
1794
|
|
|
1795 #if 0
|
|
4
|
1796 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
1797 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
1798 #endif
|
|
|
1799
|
|
|
1800 if (rev->ready) {
|
|
|
1801 ngx_http_keepalive_handler(rev);
|
|
|
1802 }
|
|
|
1803 }
|
|
|
1804
|
|
|
1805
|
|
|
1806 static void ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
|
1807 {
|
|
|
1808 size_t size;
|
|
|
1809 ssize_t n;
|
|
|
1810 ngx_buf_t *b;
|
|
|
1811 ngx_connection_t *c;
|
|
|
1812 ngx_http_log_ctx_t *ctx;
|
|
|
1813 ngx_http_connection_t *hc;
|
|
|
1814
|
|
|
1815 c = rev->data;
|
|
|
1816
|
|
|
1817 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
1818
|
|
|
1819 if (rev->timedout) {
|
|
|
1820 ngx_http_close_connection(c);
|
|
|
1821 return;
|
|
|
1822 }
|
|
|
1823
|
|
|
1824 ctx = (ngx_http_log_ctx_t *) rev->log->data;
|
|
|
1825
|
|
18
|
1826 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1827
|
|
4
|
1828 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1829 if (rev->pending_eof) {
|
|
10
|
1830 rev->log->handler = NULL;
|
|
0
|
1831 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
1832 "kevent() reported that client %V closed "
|
|
0
|
1833 "keepalive connection", ctx->client);
|
|
22
|
1834 #if (NGX_HTTP_SSL)
|
|
|
1835 if (c->ssl) {
|
|
|
1836 c->ssl->no_send_shut = 1;
|
|
|
1837 }
|
|
|
1838 #endif
|
|
0
|
1839 ngx_http_close_connection(c);
|
|
|
1840 return;
|
|
|
1841 }
|
|
|
1842 }
|
|
|
1843
|
|
|
1844 #endif
|
|
|
1845
|
|
|
1846 hc = c->data;
|
|
|
1847 b = c->buffer;
|
|
|
1848 size = b->end - b->start;
|
|
|
1849
|
|
|
1850 if (b->pos == NULL) {
|
|
4
|
1851
|
|
|
1852 /*
|
|
|
1853 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
1854 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
1855 * to keep the buffer size.
|
|
|
1856 */
|
|
|
1857
|
|
0
|
1858 if (!(b->pos = ngx_palloc(c->pool, size))) {
|
|
|
1859 ngx_http_close_connection(c);
|
|
|
1860 return;
|
|
|
1861 }
|
|
|
1862
|
|
|
1863 b->start = b->pos;
|
|
|
1864 b->last = b->pos;
|
|
|
1865 b->end = b->pos + size;
|
|
|
1866 }
|
|
|
1867
|
|
|
1868 /*
|
|
|
1869 * MSIE closes a keepalive connection with RST flag
|
|
|
1870 * so we ignore ECONNRESET here.
|
|
|
1871 */
|
|
|
1872
|
|
|
1873 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
1874 ngx_set_socket_errno(0);
|
|
|
1875
|
|
|
1876 n = c->recv(c, b->last, size);
|
|
|
1877 c->log_error = NGX_ERROR_INFO;
|
|
|
1878
|
|
|
1879 if (n == NGX_AGAIN) {
|
|
24
|
1880 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1881 ngx_http_close_connection(c);
|
|
|
1882 }
|
|
|
1883
|
|
0
|
1884 return;
|
|
|
1885 }
|
|
|
1886
|
|
|
1887 if (n == NGX_ERROR) {
|
|
|
1888 ngx_http_close_connection(c);
|
|
|
1889 return;
|
|
|
1890 }
|
|
|
1891
|
|
|
1892 rev->log->handler = NULL;
|
|
|
1893
|
|
|
1894 if (n == 0) {
|
|
|
1895 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
10
|
1896 "client %V closed keepalive connection", ctx->client);
|
|
0
|
1897 ngx_http_close_connection(c);
|
|
|
1898 return;
|
|
|
1899 }
|
|
|
1900
|
|
|
1901 b->last += n;
|
|
|
1902 rev->log->handler = ngx_http_log_error;
|
|
|
1903 ctx->action = "reading client request line";
|
|
|
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
|
|
10
|
2305 static u_char *ngx_http_log_error(void *data, u_char *buf, size_t len)
|
|
0
|
2306 {
|
|
|
2307 ngx_http_log_ctx_t *ctx = data;
|
|
|
2308
|
|
10
|
2309 u_char *p;
|
|
|
2310
|
|
|
2311 p = buf;
|
|
|
2312
|
|
|
2313 if (ctx->action) {
|
|
|
2314 p = ngx_snprintf(p, len, " while %s", ctx->action);
|
|
|
2315 len -= p - buf;
|
|
|
2316 }
|
|
|
2317
|
|
|
2318 p = ngx_snprintf(p, len, ", client: %V", ctx->client);
|
|
|
2319
|
|
|
2320 if (ctx->request == NULL) {
|
|
|
2321 return p;
|
|
0
|
2322 }
|
|
10
|
2323
|
|
|
2324 len -= p - buf;
|
|
|
2325
|
|
|
2326 p = ngx_snprintf(p, len, ", URL: \"%V\"", &ctx->request->unparsed_uri);
|
|
|
2327
|
|
|
2328 if (ctx->request->headers_in.referer == NULL) {
|
|
|
2329 return p;
|
|
|
2330 }
|
|
|
2331
|
|
|
2332 len -= p - buf;
|
|
|
2333
|
|
|
2334 return ngx_snprintf(p, len, ", referrer: \"%V\"",
|
|
|
2335 &ctx->request->headers_in.referer->value);
|
|
0
|
2336 }
|
