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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_http.h>
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11
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12
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13 static void ngx_http_init_request(ngx_event_t *ev);
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14 #if (NGX_HTTP_SSL)
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15 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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16 #endif
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17 static void ngx_http_process_request_line(ngx_event_t *rev);
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18 static void ngx_http_process_request_headers(ngx_event_t *rev);
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19 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
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20 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
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21 ngx_uint_t request_line);
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22 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
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26
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23 static ngx_int_t ngx_http_find_virtual_server(ngx_http_request_t *r);
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0
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24
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25 static void ngx_http_set_write_handler(ngx_http_request_t *r);
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26
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27 static void ngx_http_block_read(ngx_event_t *ev);
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28 static void ngx_http_read_discarded_body_event(ngx_event_t *rev);
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29 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r);
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30
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31 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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32 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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33 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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34 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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35
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36 static void ngx_http_client_error(ngx_http_request_t *r,
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37 int client_error, int error);
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32
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38 static u_char *ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len);
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0
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39
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40
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41 /* NGX_HTTP_PARSE_... errors */
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42
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43 static char *client_header_errors[] = {
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10
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44 "client %V sent invalid method \"%V\"",
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45 "client %V sent invalid request \"%V\"",
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46 "client %V sent too long URI in request \"%V\"",
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47 "client %V sent invalid method in HTTP/0.9 request \"%V\"",
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48
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49 "client %V sent invalid header, URL: \"%V\"",
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50 "client %V sent too long header line, URL: \"%V\"",
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51 "client %V sent HTTP/1.1 request without \"Host\" header, URL: \"%V\"",
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52 "client %V sent invalid \"Content-Length\" header, URL: \"%V\"",
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53 "client %V sent POST method without \"Content-Length\" header, URL: \"%V\"",
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0
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54 };
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55
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56
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57 ngx_http_header_t ngx_http_headers_in[] = {
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58 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host) },
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59 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection) },
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60 { ngx_string("If-Modified-Since"),
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38
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61 offsetof(ngx_http_headers_in_t, if_modified_since) },
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0
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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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38
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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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38
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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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38
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76 offsetof(ngx_http_headers_in_t, accept_encoding) },
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0
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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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38
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81 offsetof(ngx_http_headers_in_t, authorization) },
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0
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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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38
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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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38
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92 #if (NGX_HTTP_HEADERS)
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93 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept) },
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94 { ngx_string("Accept-Language"),
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95 offsetof(ngx_http_headers_in_t, accept_language) },
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96 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via) },
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97 #endif
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98
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0
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99 { ngx_null_string, 0 }
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100 };
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101
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102
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103 #if 0
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104 static void ngx_http_dummy(ngx_event_t *wev)
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105 {
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106 return;
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107 }
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108 #endif
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109
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110
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111 void ngx_http_init_connection(ngx_connection_t *c)
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112 {
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113 ngx_event_t *rev;
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114 ngx_http_log_ctx_t *ctx;
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115
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10
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116 if (!(ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t)))) {
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0
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117 ngx_http_close_connection(c);
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118 return;
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119 }
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120
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10
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121 ctx->client = &c->addr_text;
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122 ctx->request = NULL;
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32
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123
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124 c->log->connection = c->number;
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125 c->log->handler = ngx_http_log_error;
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0
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126 c->log->data = ctx;
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32
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127 c->log->action = "reading client request line";
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128
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0
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129 c->log_error = NGX_ERROR_INFO;
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130
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131 rev = c->read;
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132 rev->event_handler = ngx_http_init_request;
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133
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134 /* STUB: epoll edge */ c->write->event_handler = ngx_http_empty_handler;
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135
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136 if (rev->ready) {
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137 /* the deferred accept(), rtsig, aio, iocp */
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138
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139 if (ngx_accept_mutex) {
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140 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
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141 ngx_http_close_connection(c);
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142 return;
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143 }
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144
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145 ngx_post_event(rev);
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146
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147 ngx_mutex_unlock(ngx_posted_events_mutex);
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148 return;
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149 }
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150
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151 #if (NGX_STAT_STUB)
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152 (*ngx_stat_reading)++;
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153 #endif
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154
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155 ngx_http_init_request(rev);
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156 return;
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157 }
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158
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159 ngx_add_timer(rev, c->listening->post_accept_timeout);
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160
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161 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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162 ngx_http_close_connection(c);
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163 return;
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164 }
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165
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166 #if 0
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167 /* TODO: learn SO_SNDBUF (to use in zerocopy) via kqueue's EV_CLEAR event */
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168
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169 c->write->ready = 0;
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170 c->write->event_handler = ngx_http_dummy;
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171
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172 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
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173 ngx_http_close_connection(c);
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174 return;
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175 }
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176 #endif
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177
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178 #if (NGX_STAT_STUB)
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179 (*ngx_stat_reading)++;
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180 #endif
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181
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182 }
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183
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184
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185 static void ngx_http_init_request(ngx_event_t *rev)
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186 {
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187 ngx_uint_t i;
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188 socklen_t len;
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28
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189 struct sockaddr_in sin;
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0
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190 ngx_connection_t *c;
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191 ngx_http_request_t *r;
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192 ngx_http_in_port_t *in_port;
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193 ngx_http_in_addr_t *in_addr;
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194 ngx_http_connection_t *hc;
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195 ngx_http_server_name_t *server_name;
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196 ngx_http_core_srv_conf_t *cscf;
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197 ngx_http_core_loc_conf_t *clcf;
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198 #if (NGX_HTTP_SSL)
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199 ngx_http_ssl_srv_conf_t *sscf;
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200 #endif
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201
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202 c = rev->data;
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203
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204 if (rev->timedout) {
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205 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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206
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207 #if (NGX_STAT_STUB)
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208 (*ngx_stat_reading)--;
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209 #endif
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210
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211 ngx_http_close_connection(c);
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212 return;
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213 }
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214
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215 hc = c->data;
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216
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217 if (hc) {
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218
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219 #if (NGX_STAT_STUB)
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220 (*ngx_stat_reading)++;
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221 #endif
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222
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223 } else {
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224 if (!(hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t)))) {
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225
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226 #if (NGX_STAT_STUB)
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227 (*ngx_stat_reading)--;
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228 #endif
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229
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230 ngx_http_close_connection(c);
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231 return;
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232 }
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233 }
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234
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235 r = hc->request;
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236
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237 if (r) {
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238 ngx_memzero(r, sizeof(ngx_http_request_t));
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239
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240 r->pipeline = hc->pipeline;
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241
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242 if (hc->nbusy) {
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243 r->header_in = hc->busy[0];
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244 }
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245
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246 } else {
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247 if (!(r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t)))) {
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248
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249 #if (NGX_STAT_STUB)
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250 (*ngx_stat_reading)--;
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251 #endif
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252
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253 ngx_http_close_connection(c);
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254 return;
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255 }
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256
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257 hc->request = r;
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258 }
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259
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260 #if (NGX_STAT_STUB)
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26
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261 (*ngx_stat_reading)--;
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0
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262 #endif
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263
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264 c->data = r;
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265 r->http_connection = hc;
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266
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267 c->sent = 0;
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268 r->signature = NGX_HTTP_MODULE;
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269
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270 /* find the server configuration for the address:port */
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271
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272 /* AF_INET only */
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273
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274 in_port = c->servers;
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275 in_addr = in_port->addrs.elts;
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276
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277 r->port = in_port->port;
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278 r->port_text = &in_port->port_text;
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279
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280 i = 0;
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281
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282 if (in_port->addrs.nelts > 1) {
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283
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284 /*
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285 * There are several addresses on this port and one of them
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286 * is the "*:port" wildcard so getsockname() is needed to determine
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287 * the server address.
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288 *
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289 * AcceptEx() already gave this address.
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290 */
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291
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10
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292 #if (NGX_WIN32)
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0
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293 if (c->local_sockaddr) {
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294 r->in_addr =
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295 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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296
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28
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297 } else
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0
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298 #endif
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28
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299 {
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0
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300 len = sizeof(struct sockaddr_in);
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28
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301 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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302 ngx_connection_error(c, ngx_socket_errno,
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303 "getsockname() failed");
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304 ngx_http_close_connection(c);
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305 return;
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306 }
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307
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28
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308 r->in_addr = sin.sin_addr.s_addr;
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0
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309 }
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310
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311 /* the last in_port->addrs address is "*" */
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312
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313 for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) {
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314 if (in_addr[i].addr == r->in_addr) {
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315 break;
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316 }
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317 }
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318
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319 } else {
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320 r->in_addr = in_addr[0].addr;
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321 }
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322
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26
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323 r->virtual_names = &in_addr[i];
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0
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324
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325 /* the default server configuration for the address:port */
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326 cscf = in_addr[i].core_srv_conf;
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327
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328 r->main_conf = cscf->ctx->main_conf;
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329 r->srv_conf = cscf->ctx->srv_conf;
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330 r->loc_conf = cscf->ctx->loc_conf;
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331
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332 rev->event_handler = ngx_http_process_request_line;
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333
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334 #if (NGX_HTTP_SSL)
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335
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336 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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337 if (sscf->enable) {
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338
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339 if (c->ssl == NULL) {
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340 if (ngx_ssl_create_session(sscf->ssl_ctx, c, NGX_SSL_BUFFER)
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341 == NGX_ERROR)
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342 {
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343 ngx_http_close_connection(c);
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344 return;
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345 }
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346
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26
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347 rev->event_handler = ngx_http_ssl_handshake;
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348
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0
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349 /*
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350 * The majority of browsers do not send the "close notify" alert.
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351 * Among them are MSIE, Mozilla, Netscape 4, Konqueror, and Links.
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352 * And what is more MSIE ignores the server's alert.
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353 *
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354 * Opera always sends the alert.
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355 */
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356
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357 c->ssl->no_rcv_shut = 1;
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358 }
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359
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360 r->filter_need_in_memory = 1;
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361 }
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362
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363 #endif
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364
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365 server_name = cscf->server_names.elts;
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6
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366 r->server_name = server_name->name;
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0
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367
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368 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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369 c->log->file = clcf->err_log->file;
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370 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
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371 c->log->log_level = clcf->err_log->log_level;
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372 }
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373
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374 if (c->buffer == NULL) {
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375 c->buffer = ngx_create_temp_buf(c->pool,
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376 cscf->client_header_buffer_size);
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377 if (c->buffer == NULL) {
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378 ngx_http_close_connection(c);
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379 return;
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380 }
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381 }
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382
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383 if (r->header_in == NULL) {
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384 r->header_in = c->buffer;
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385 }
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386
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387 if (!(r->pool = ngx_create_pool(cscf->request_pool_size, c->log))) {
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388 ngx_http_close_connection(c);
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389 return;
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390 }
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391
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|
|
392 if (ngx_array_init(&r->cleanup, r->pool, 5, sizeof(ngx_http_cleanup_t))
|
|
|
393 == NGX_ERROR)
|
|
|
394 {
|
|
|
395 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
396 ngx_http_close_connection(c);
|
|
|
397 return;
|
|
|
398 }
|
|
|
399
|
|
|
400
|
|
|
401 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
|
402 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
|
403 {
|
|
|
404 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
405 ngx_http_close_connection(c);
|
|
|
406 return;
|
|
|
407 }
|
|
|
408
|
|
|
409
|
|
|
410 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
411 if (r->ctx == NULL) {
|
|
|
412 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
413 ngx_http_close_connection(c);
|
|
|
414 return;
|
|
|
415 }
|
|
|
416
|
|
|
417 c->single_connection = 1;
|
|
|
418 r->connection = c;
|
|
|
419
|
|
|
420 r->file.fd = NGX_INVALID_FILE;
|
|
|
421
|
|
|
422 r->headers_in.content_length_n = -1;
|
|
|
423 r->headers_in.keep_alive_n = -1;
|
|
|
424 r->headers_out.content_length_n = -1;
|
|
|
425 r->headers_out.last_modified_time = -1;
|
|
|
426
|
|
|
427 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
428
|
|
|
429 #if (NGX_STAT_STUB)
|
|
26
|
430 (*ngx_stat_reading)++;
|
|
|
431 r->stat_reading = 1;
|
|
0
|
432 (*ngx_stat_requests)++;
|
|
|
433 #endif
|
|
|
434
|
|
|
435 rev->event_handler(rev);
|
|
|
436 }
|
|
|
437
|
|
|
438
|
|
|
439 #if (NGX_HTTP_SSL)
|
|
|
440
|
|
|
441 static void ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
|
442 {
|
|
10
|
443 u_char buf[1];
|
|
|
444 ssize_t n;
|
|
0
|
445 ngx_int_t rc;
|
|
|
446 ngx_connection_t *c;
|
|
|
447 ngx_http_request_t *r;
|
|
|
448
|
|
|
449 c = rev->data;
|
|
|
450 r = c->data;
|
|
|
451
|
|
|
452 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
453 "http check ssl handshake");
|
|
|
454
|
|
|
455 if (rev->timedout) {
|
|
|
456 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
457 return;
|
|
|
458 }
|
|
|
459
|
|
|
460 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
461
|
|
|
462 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
463 return;
|
|
|
464 }
|
|
|
465
|
|
|
466 if (n == 1) {
|
|
|
467 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
468 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
469 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
470
|
|
|
471 c->recv = ngx_ssl_recv;
|
|
|
472 c->send_chain = ngx_ssl_send_chain;
|
|
|
473
|
|
|
474 rc = ngx_ssl_handshake(c);
|
|
|
475
|
|
|
476 if (rc == NGX_ERROR) {
|
|
|
477 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
478 ngx_http_close_connection(r->connection);
|
|
|
479 return;
|
|
|
480 }
|
|
|
481
|
|
|
482 if (rc != NGX_OK) {
|
|
|
483 return;
|
|
|
484 }
|
|
|
485
|
|
|
486 } else {
|
|
|
487 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
488 "plain http");
|
|
|
489
|
|
|
490 r->plain_http = 1;
|
|
|
491 }
|
|
|
492 }
|
|
|
493
|
|
|
494 rev->event_handler = ngx_http_process_request_line;
|
|
|
495 ngx_http_process_request_line(rev);
|
|
|
496 }
|
|
|
497
|
|
|
498 #endif
|
|
|
499
|
|
|
500
|
|
|
501 static void ngx_http_process_request_line(ngx_event_t *rev)
|
|
|
502 {
|
|
|
503 ssize_t n;
|
|
|
504 ngx_int_t rc, rv;
|
|
|
505 ngx_connection_t *c;
|
|
|
506 ngx_http_request_t *r;
|
|
|
507 ngx_http_log_ctx_t *ctx;
|
|
|
508
|
|
|
509 c = rev->data;
|
|
|
510 r = c->data;
|
|
|
511
|
|
|
512 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
513 "http process request line");
|
|
|
514
|
|
|
515 if (rev->timedout) {
|
|
|
516 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
517 return;
|
|
|
518 }
|
|
|
519
|
|
|
520 rc = NGX_AGAIN;
|
|
|
521
|
|
|
522 for ( ;; ) {
|
|
|
523
|
|
|
524 if (rc == NGX_AGAIN) {
|
|
|
525 n = ngx_http_read_request_header(r);
|
|
|
526
|
|
|
527 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
528 return;
|
|
|
529 }
|
|
|
530 }
|
|
|
531
|
|
|
532 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
533
|
|
|
534 if (rc == NGX_OK) {
|
|
|
535
|
|
|
536 /* the request line has been parsed successfully */
|
|
|
537
|
|
10
|
538 r->request_line.len = r->request_end - r->request_start;
|
|
|
539 r->request_line.data = r->request_start;
|
|
|
540
|
|
0
|
541
|
|
|
542 if (r->args_start) {
|
|
|
543 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
544 } else {
|
|
|
545 r->uri.len = r->uri_end - r->uri_start;
|
|
|
546 }
|
|
|
547
|
|
18
|
548
|
|
2
|
549 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
550
|
|
|
551 if (!(r->uri.data = ngx_palloc(r->pool, r->uri.len + 1))) {
|
|
|
552 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
553 ngx_http_close_connection(c);
|
|
|
554 return;
|
|
|
555 }
|
|
|
556
|
|
0
|
557 rc = ngx_http_parse_complex_uri(r);
|
|
|
558
|
|
|
559 if (rc == NGX_HTTP_INTERNAL_SERVER_ERROR) {
|
|
|
560 ngx_http_close_request(r, rc);
|
|
|
561 ngx_http_close_connection(c);
|
|
|
562 return;
|
|
|
563 }
|
|
|
564
|
|
|
565 if (rc != NGX_OK) {
|
|
|
566 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
567 return;
|
|
|
568 }
|
|
|
569
|
|
|
570 } else {
|
|
10
|
571 r->uri.data = r->uri_start;
|
|
0
|
572 }
|
|
|
573
|
|
18
|
574
|
|
10
|
575 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
576 r->unparsed_uri.data = r->uri_start;
|
|
|
577
|
|
0
|
578
|
|
|
579 if (r->method == 0) {
|
|
|
580 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
581 r->method_name.data = r->request_line.data;
|
|
|
582 }
|
|
|
583
|
|
10
|
584
|
|
28
|
585 if (r->http_protocol.data) {
|
|
|
586 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
587 }
|
|
|
588
|
|
|
589
|
|
0
|
590 if (r->uri_ext) {
|
|
|
591 if (r->args_start) {
|
|
|
592 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
593 } else {
|
|
|
594 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
595 }
|
|
|
596
|
|
10
|
597 r->exten.data = r->uri_ext;
|
|
0
|
598 }
|
|
|
599
|
|
10
|
600
|
|
0
|
601 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
602 r->args.len = r->uri_end - r->args_start;
|
|
10
|
603 r->args.data = r->args_start;
|
|
0
|
604 }
|
|
|
605
|
|
10
|
606
|
|
|
607 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
608 "http request line: \"%V\"", &r->request_line);
|
|
|
609
|
|
0
|
610 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
611 "http uri: \"%V\"", &r->uri);
|
|
0
|
612
|
|
|
613 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
614 "http args: \"%V\"", &r->args);
|
|
0
|
615
|
|
|
616 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
617 "http exten: \"%V\"", &r->exten);
|
|
|
618
|
|
|
619 ctx = c->log->data;
|
|
|
620 ctx->request = r;
|
|
0
|
621
|
|
|
622 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
|
623 rev->event_handler = ngx_http_block_read;
|
|
|
624 ngx_http_handler(r);
|
|
|
625 return;
|
|
|
626 }
|
|
|
627
|
|
|
628
|
|
|
629 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
|
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
|
|
|
638 if (ngx_array_init(&r->headers_in.cookies, r->pool, 5,
|
|
|
639 sizeof(ngx_table_elt_t *)) == NGX_ERROR)
|
|
|
640 {
|
|
|
641 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
642 ngx_http_close_connection(c);
|
|
|
643 return;
|
|
|
644 }
|
|
|
645
|
|
32
|
646 c->log->action = "reading client request headers";
|
|
0
|
647
|
|
|
648 rev->event_handler = ngx_http_process_request_headers;
|
|
|
649 ngx_http_process_request_headers(rev);
|
|
|
650
|
|
|
651 return;
|
|
|
652
|
|
|
653 } else if (rc != NGX_AGAIN) {
|
|
|
654
|
|
|
655 /* there was error while a request line parsing */
|
|
|
656
|
|
10
|
657 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
658
|
|
|
659 #if 0
|
|
0
|
660 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
661 if (*p == CR || *p == LF) {
|
|
|
662 break;
|
|
|
663 }
|
|
|
664 }
|
|
|
665
|
|
|
666 r->request_line.len = p - r->request_start;
|
|
|
667 r->request_line.data = r->request_start;
|
|
|
668
|
|
|
669 if (rc == NGX_HTTP_PARSE_INVALID_METHOD) {
|
|
|
670 r->http_version = NGX_HTTP_VERSION_10;
|
|
|
671 }
|
|
|
672
|
|
|
673 ngx_http_client_error(r, rc,
|
|
|
674 (rc == NGX_HTTP_PARSE_INVALID_METHOD) ?
|
|
|
675 NGX_HTTP_NOT_IMPLEMENTED:
|
|
|
676 NGX_HTTP_BAD_REQUEST);
|
|
10
|
677 #endif
|
|
|
678
|
|
0
|
679 return;
|
|
|
680 }
|
|
|
681
|
|
|
682 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
683
|
|
|
684 if (r->header_in->pos == r->header_in->end) {
|
|
|
685
|
|
|
686 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
687
|
|
|
688 if (rv == NGX_ERROR) {
|
|
|
689 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
690 ngx_http_close_connection(c);
|
|
|
691 return;
|
|
|
692 }
|
|
|
693
|
|
|
694 if (rv == NGX_DECLINED) {
|
|
|
695 ngx_http_client_error(r, NGX_HTTP_PARSE_TOO_LONG_URI,
|
|
|
696 NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
|
697 return;
|
|
|
698 }
|
|
|
699 }
|
|
|
700 }
|
|
|
701 }
|
|
|
702
|
|
|
703
|
|
|
704 static void ngx_http_process_request_headers(ngx_event_t *rev)
|
|
|
705 {
|
|
|
706 ssize_t n;
|
|
|
707 ngx_int_t rc, rv, i;
|
|
|
708 ngx_table_elt_t *h, **cookie;
|
|
|
709 ngx_connection_t *c;
|
|
|
710 ngx_http_request_t *r;
|
|
|
711
|
|
|
712 c = rev->data;
|
|
|
713 r = c->data;
|
|
|
714
|
|
|
715 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
716 "http process request header line");
|
|
|
717
|
|
|
718 if (rev->timedout) {
|
|
|
719 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
720 return;
|
|
|
721 }
|
|
|
722
|
|
|
723 rc = NGX_AGAIN;
|
|
|
724
|
|
|
725 for ( ;; ) {
|
|
|
726
|
|
|
727 if (rc == NGX_AGAIN) {
|
|
|
728
|
|
|
729 if (r->header_in->pos == r->header_in->end) {
|
|
|
730
|
|
|
731 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
732
|
|
|
733 if (rv == NGX_ERROR) {
|
|
|
734 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
735 ngx_http_close_connection(c);
|
|
|
736 return;
|
|
|
737 }
|
|
|
738
|
|
|
739 if (rv == NGX_DECLINED) {
|
|
|
740 ngx_http_client_error(r, NGX_HTTP_PARSE_TOO_LONG_HEADER,
|
|
|
741 NGX_HTTP_BAD_REQUEST);
|
|
|
742 return;
|
|
|
743 }
|
|
|
744 }
|
|
|
745
|
|
|
746 n = ngx_http_read_request_header(r);
|
|
|
747
|
|
|
748 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
749 return;
|
|
|
750 }
|
|
|
751 }
|
|
|
752
|
|
|
753 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
754
|
|
|
755 if (rc == NGX_OK) {
|
|
|
756
|
|
|
757 /* a header line has been parsed successfully */
|
|
|
758
|
|
|
759 r->headers_n++;
|
|
|
760
|
|
|
761 if (!(h = ngx_list_push(&r->headers_in.headers))) {
|
|
|
762 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
763 ngx_http_close_connection(c);
|
|
|
764 return;
|
|
|
765 }
|
|
|
766
|
|
|
767 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
768 h->key.data = r->header_name_start;
|
|
|
769 h->key.data[h->key.len] = '\0';
|
|
|
770
|
|
|
771 h->value.len = r->header_end - r->header_start;
|
|
|
772 h->value.data = r->header_start;
|
|
|
773 h->value.data[h->value.len] = '\0';
|
|
|
774
|
|
|
775 if (h->key.len == sizeof("Cookie") - 1
|
|
|
776 && ngx_strcasecmp(h->key.data, "Cookie") == 0)
|
|
|
777 {
|
|
|
778 if (!(cookie = ngx_array_push(&r->headers_in.cookies))) {
|
|
|
779 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
780 ngx_http_close_connection(c);
|
|
|
781 return;
|
|
|
782 }
|
|
|
783
|
|
|
784 *cookie = h;
|
|
|
785
|
|
|
786 } else {
|
|
|
787
|
|
|
788 for (i = 0; ngx_http_headers_in[i].name.len != 0; i++) {
|
|
|
789 if (ngx_http_headers_in[i].name.len != h->key.len) {
|
|
|
790 continue;
|
|
|
791 }
|
|
|
792
|
|
|
793 if (ngx_strcasecmp(ngx_http_headers_in[i].name.data,
|
|
|
794 h->key.data) == 0)
|
|
|
795 {
|
|
|
796 *((ngx_table_elt_t **) ((char *) &r->headers_in
|
|
|
797 + ngx_http_headers_in[i].offset)) = h;
|
|
|
798 break;
|
|
|
799 }
|
|
|
800 }
|
|
|
801 }
|
|
|
802
|
|
|
803 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
804 "http header: \"%V: %V\"",
|
|
|
805 &h->key, &h->value);
|
|
0
|
806
|
|
|
807 continue;
|
|
|
808
|
|
|
809 } else if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
|
810
|
|
|
811 /* a whole header has been parsed successfully */
|
|
|
812
|
|
|
813 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
814 "http header done");
|
|
|
815
|
|
24
|
816 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
817
|
|
0
|
818 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
819
|
|
|
820 rc = ngx_http_process_request_header(r);
|
|
|
821
|
|
|
822 if (rc != NGX_OK) {
|
|
|
823 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
824 return;
|
|
|
825 }
|
|
|
826
|
|
|
827 if (rev->timer_set) {
|
|
|
828 ngx_del_timer(rev);
|
|
|
829 }
|
|
|
830
|
|
|
831 #if (NGX_STAT_STUB)
|
|
|
832 (*ngx_stat_reading)--;
|
|
|
833 r->stat_reading = 0;
|
|
|
834 (*ngx_stat_writing)++;
|
|
|
835 r->stat_writing = 1;
|
|
|
836 #endif
|
|
|
837
|
|
|
838 rev->event_handler = ngx_http_block_read;
|
|
|
839 ngx_http_handler(r);
|
|
|
840 return;
|
|
|
841
|
|
|
842 } else if (rc != NGX_AGAIN) {
|
|
|
843
|
|
|
844 /* there was error while a header line parsing */
|
|
|
845
|
|
|
846 #if (NGX_DEBUG)
|
|
|
847 if (rc == NGX_HTTP_PARSE_INVALID_HEADER
|
|
|
848 && (rev->log->log_level & NGX_LOG_DEBUG_HTTP))
|
|
|
849 {
|
|
|
850 u_char *p;
|
|
|
851 for (p = r->header_name_start;
|
|
|
852 p < r->header_in->last - 1;
|
|
|
853 p++)
|
|
|
854 {
|
|
|
855 if (*p == LF) {
|
|
|
856 break;
|
|
|
857 }
|
|
|
858 }
|
|
|
859 *p = '\0';
|
|
|
860 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
861 "http invalid header: \"%s\"",
|
|
|
862 r->header_name_start);
|
|
|
863 }
|
|
|
864 #endif
|
|
|
865
|
|
|
866 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
867 return;
|
|
|
868 }
|
|
|
869
|
|
|
870 /* NGX_AGAIN: a header line parsing is still not complete */
|
|
|
871
|
|
|
872 }
|
|
|
873 }
|
|
|
874
|
|
|
875
|
|
|
876 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r)
|
|
|
877 {
|
|
|
878 ssize_t n;
|
|
|
879 ngx_event_t *rev;
|
|
|
880 ngx_http_core_srv_conf_t *cscf;
|
|
|
881
|
|
|
882 rev = r->connection->read;
|
|
|
883
|
|
|
884 n = r->header_in->last - r->header_in->pos;
|
|
|
885
|
|
|
886 if (n > 0) {
|
|
|
887 return n;
|
|
|
888 }
|
|
|
889
|
|
|
890 if (!rev->ready) {
|
|
|
891 return NGX_AGAIN;
|
|
|
892 }
|
|
|
893
|
|
|
894 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
895 r->header_in->end - r->header_in->last);
|
|
|
896
|
|
|
897 if (n == NGX_AGAIN) {
|
|
|
898 if (!r->header_timeout_set) {
|
|
|
899 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
900 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
901 r->header_timeout_set = 1;
|
|
|
902 }
|
|
|
903
|
|
|
904 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
905 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
906 ngx_http_close_connection(r->connection);
|
|
|
907 return NGX_ERROR;
|
|
|
908 }
|
|
|
909
|
|
|
910 return NGX_AGAIN;
|
|
|
911 }
|
|
|
912
|
|
|
913 if (n == 0) {
|
|
|
914 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
915 "client closed prematurely connection");
|
|
|
916 }
|
|
|
917
|
|
|
918 if (n == 0 || n == NGX_ERROR) {
|
|
|
919 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
920 ngx_http_close_connection(r->connection);
|
|
|
921 return NGX_ERROR;
|
|
|
922 }
|
|
|
923
|
|
|
924 r->header_in->last += n;
|
|
|
925
|
|
|
926 return n;
|
|
|
927 }
|
|
|
928
|
|
|
929
|
|
|
930 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
931 ngx_uint_t request_line)
|
|
|
932 {
|
|
|
933 u_char *old, *new;
|
|
|
934 ngx_buf_t *b;
|
|
|
935 ngx_http_connection_t *hc;
|
|
|
936 ngx_http_core_srv_conf_t *cscf;
|
|
|
937
|
|
|
938 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
939 "http alloc large header buffer");
|
|
|
940
|
|
|
941 if (request_line && r->state == 0) {
|
|
|
942
|
|
|
943 /* the client fills up the buffer with "\r\n" */
|
|
|
944
|
|
24
|
945 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
946
|
|
0
|
947 r->header_in->pos = r->header_in->start;
|
|
|
948 r->header_in->last = r->header_in->start;
|
|
|
949
|
|
|
950 return NGX_OK;
|
|
|
951 }
|
|
|
952
|
|
|
953 old = request_line ? r->request_start : r->header_name_start;
|
|
|
954
|
|
|
955 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
956
|
|
|
957 if (r->state != 0
|
|
|
958 && (size_t) (r->header_in->pos - old)
|
|
|
959 >= cscf->large_client_header_buffers.size)
|
|
|
960 {
|
|
|
961 return NGX_DECLINED;
|
|
|
962 }
|
|
|
963
|
|
|
964 hc = r->http_connection;
|
|
|
965
|
|
|
966 if (hc->nfree) {
|
|
|
967 b = hc->free[--hc->nfree];
|
|
|
968
|
|
|
969 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
970 "http large header free: %p %uz",
|
|
0
|
971 b->pos, b->end - b->last);
|
|
|
972
|
|
|
973 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
974
|
|
|
975 if (hc->busy == NULL) {
|
|
|
976 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
977 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
978 if (hc->busy == NULL) {
|
|
|
979 return NGX_ERROR;
|
|
|
980 }
|
|
|
981 }
|
|
|
982
|
|
|
983 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
984 cscf->large_client_header_buffers.size);
|
|
|
985 if (b == NULL) {
|
|
|
986 return NGX_ERROR;
|
|
|
987 }
|
|
|
988
|
|
|
989 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
990 "http large header alloc: %p %uz",
|
|
0
|
991 b->pos, b->end - b->last);
|
|
|
992
|
|
|
993 } else {
|
|
|
994 return NGX_DECLINED;
|
|
|
995 }
|
|
|
996
|
|
|
997 hc->busy[hc->nbusy++] = b;
|
|
|
998
|
|
|
999 if (r->state == 0) {
|
|
|
1000 /*
|
|
|
1001 * r->state == 0 means that a header line was parsed successfully
|
|
|
1002 * and we do not need to copy incomplete header line and
|
|
|
1003 * to relocate the parser header pointers
|
|
|
1004 */
|
|
|
1005
|
|
24
|
1006 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1007
|
|
0
|
1008 r->header_in = b;
|
|
|
1009
|
|
|
1010 return NGX_OK;
|
|
|
1011 }
|
|
|
1012
|
|
|
1013 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1014 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1015
|
|
24
|
1016 r->request_length += old - r->header_in->start;
|
|
|
1017
|
|
0
|
1018 new = b->start;
|
|
|
1019
|
|
|
1020 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1021
|
|
|
1022 b->pos = new + (r->header_in->pos - old);
|
|
|
1023 b->last = new + (r->header_in->pos - old);
|
|
|
1024
|
|
|
1025 if (request_line) {
|
|
|
1026 r->request_start = new;
|
|
|
1027
|
|
|
1028 if (r->request_end) {
|
|
|
1029 r->request_end = new + (r->request_end - old);
|
|
|
1030 }
|
|
|
1031
|
|
|
1032 r->method_end = new + (r->method_end - old);
|
|
|
1033
|
|
|
1034 r->uri_start = new + (r->uri_start - old);
|
|
|
1035 r->uri_end = new + (r->uri_end - old);
|
|
|
1036
|
|
|
1037 if (r->schema_start) {
|
|
|
1038 r->schema_start = new + (r->schema_start - old);
|
|
|
1039 r->schema_end = new + (r->schema_end - old);
|
|
|
1040 }
|
|
|
1041
|
|
|
1042 if (r->host_start) {
|
|
|
1043 r->host_start = new + (r->host_start - old);
|
|
|
1044 r->host_end = new + (r->host_end - old);
|
|
|
1045 }
|
|
|
1046
|
|
|
1047 if (r->port_start) {
|
|
|
1048 r->port_start = new + (r->port_start - old);
|
|
|
1049 r->port_end = new + (r->port_end - old);
|
|
|
1050 }
|
|
|
1051
|
|
|
1052 if (r->uri_ext) {
|
|
|
1053 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1054 }
|
|
|
1055
|
|
|
1056 if (r->args_start) {
|
|
|
1057 r->args_start = new + (r->args_start - old);
|
|
|
1058 }
|
|
|
1059
|
|
|
1060 } else {
|
|
|
1061 r->header_name_start = new;
|
|
|
1062 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1063 r->header_start = new + (r->header_start - old);
|
|
|
1064 r->header_end = new + (r->header_end - old);
|
|
|
1065 }
|
|
|
1066
|
|
|
1067 r->header_in = b;
|
|
|
1068
|
|
|
1069 return NGX_OK;
|
|
|
1070 }
|
|
|
1071
|
|
|
1072
|
|
|
1073 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r)
|
|
|
1074 {
|
|
26
|
1075 u_char *ua, *user_agent, ch;
|
|
|
1076 size_t len;
|
|
0
|
1077
|
|
|
1078 if (r->headers_in.host) {
|
|
|
1079 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1080 ch = r->headers_in.host->value.data[len];
|
|
|
1081
|
|
|
1082 if (ch == ':') {
|
|
0
|
1083 break;
|
|
|
1084 }
|
|
26
|
1085
|
|
|
1086 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
|
0
|
1087 }
|
|
|
1088 r->headers_in.host_name_len = len;
|
|
|
1089
|
|
26
|
1090 if (ngx_http_find_virtual_server(r) != NGX_OK) {
|
|
|
1091 return NGX_HTTP_PARSE_INVALID_HOST;
|
|
0
|
1092 }
|
|
|
1093
|
|
|
1094 } else {
|
|
|
1095 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
|
1096 return NGX_HTTP_PARSE_NO_HOST_HEADER;
|
|
|
1097 }
|
|
|
1098 r->headers_in.host_name_len = 0;
|
|
|
1099 }
|
|
|
1100
|
|
|
1101 if (r->headers_in.content_length) {
|
|
|
1102 r->headers_in.content_length_n =
|
|
|
1103 ngx_atoi(r->headers_in.content_length->value.data,
|
|
|
1104 r->headers_in.content_length->value.len);
|
|
|
1105
|
|
|
1106 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
|
1107 return NGX_HTTP_PARSE_INVALID_CL_HEADER;
|
|
|
1108 }
|
|
|
1109 }
|
|
|
1110
|
|
32
|
1111 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n == -1) {
|
|
0
|
1112 return NGX_HTTP_PARSE_POST_WO_CL_HEADER;
|
|
|
1113 }
|
|
|
1114
|
|
|
1115 if (r->plain_http) {
|
|
|
1116 return NGX_HTTP_PARSE_HTTP_TO_HTTPS;
|
|
|
1117 }
|
|
|
1118
|
|
|
1119 if (r->headers_in.connection) {
|
|
|
1120 if (r->headers_in.connection->value.len == 5
|
|
|
1121 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
|
1122 == 0)
|
|
|
1123 {
|
|
|
1124 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1125
|
|
|
1126 } else if (r->headers_in.connection->value.len == 10
|
|
|
1127 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
|
1128 "keep-alive") == 0)
|
|
|
1129 {
|
|
|
1130 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1131
|
|
|
1132 if (r->headers_in.keep_alive) {
|
|
|
1133 r->headers_in.keep_alive_n =
|
|
|
1134 ngx_atoi(r->headers_in.keep_alive->value.data,
|
|
|
1135 r->headers_in.keep_alive->value.len);
|
|
|
1136 }
|
|
|
1137 }
|
|
|
1138 }
|
|
|
1139
|
|
|
1140 if (r->headers_in.user_agent) {
|
|
|
1141
|
|
|
1142 /*
|
|
|
1143 * check some widespread browsers while the headers are still
|
|
|
1144 * in CPU cache
|
|
|
1145 */
|
|
|
1146
|
|
|
1147 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1148
|
|
|
1149 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1150
|
|
|
1151 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1152
|
|
|
1153 r->headers_in.msie = 1;
|
|
|
1154
|
|
|
1155 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1156 r->headers_in.msie4 = 1;
|
|
|
1157 }
|
|
|
1158
|
|
|
1159 #if 0
|
|
|
1160 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1161 if (c->ssl) {
|
|
|
1162 r->connection->ssl->no_send_shut = 1;
|
|
|
1163 }
|
|
0
|
1164 #endif
|
|
|
1165 }
|
|
|
1166
|
|
|
1167 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1168 r->headers_in.opera = 1;
|
|
|
1169 r->headers_in.msie = 0;
|
|
|
1170 r->headers_in.msie4 = 0;
|
|
|
1171 }
|
|
|
1172
|
|
|
1173 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1174
|
|
|
1175 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1176 r->headers_in.gecko = 1;
|
|
|
1177
|
|
|
1178 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1179 r->headers_in.konqueror = 1;
|
|
|
1180 }
|
|
|
1181 }
|
|
|
1182 }
|
|
|
1183
|
|
|
1184 return NGX_OK;
|
|
|
1185 }
|
|
|
1186
|
|
|
1187
|
|
26
|
1188 static ngx_int_t ngx_http_find_virtual_server(ngx_http_request_t *r)
|
|
|
1189 {
|
|
|
1190 ngx_int_t rc;
|
|
|
1191 ngx_uint_t i, n, key, found;
|
|
|
1192 ngx_http_server_name_t *name;
|
|
|
1193 ngx_http_core_main_conf_t *cmcf;
|
|
|
1194 ngx_http_core_srv_conf_t *cscf;
|
|
|
1195 ngx_http_core_loc_conf_t *clcf;
|
|
|
1196
|
|
|
1197 if (r->virtual_names->hash) {
|
|
|
1198 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
1199
|
|
|
1200 ngx_http_server_names_hash_key(key,
|
|
|
1201 r->headers_in.host->value.data,
|
|
|
1202 r->headers_in.host_name_len,
|
|
|
1203 cmcf->server_names_hash);
|
|
|
1204
|
|
|
1205 name = r->virtual_names->hash[key].elts;
|
|
|
1206 n = r->virtual_names->hash[key].nelts;
|
|
|
1207
|
|
|
1208 } else {
|
|
|
1209 name = r->virtual_names->names.elts;
|
|
|
1210 n = r->virtual_names->names.nelts;
|
|
|
1211 }
|
|
|
1212
|
|
|
1213 found = 0;
|
|
|
1214
|
|
|
1215 for (i = 0; i < n; i++) {
|
|
|
1216
|
|
|
1217 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1218 "server name: %V", &name[i].name);
|
|
|
1219
|
|
|
1220 if (r->headers_in.host_name_len != name[i].name.len) {
|
|
|
1221 continue;
|
|
|
1222 }
|
|
|
1223
|
|
|
1224 rc = ngx_strncmp(r->headers_in.host->value.data,
|
|
|
1225 name[i].name.data, name[i].name.len);
|
|
|
1226
|
|
|
1227 if (rc == 0) {
|
|
|
1228 r->server_name = name[i].name;
|
|
|
1229
|
|
|
1230 found = 1;
|
|
|
1231 break;
|
|
|
1232 }
|
|
|
1233
|
|
|
1234 if (rc < 0) {
|
|
|
1235 /* the server names are lexicographically sorted */
|
|
|
1236 break;
|
|
|
1237 }
|
|
|
1238 }
|
|
|
1239
|
|
|
1240 if (!found && r->virtual_names->wildcards.nelts) {
|
|
|
1241
|
|
|
1242 name = r->virtual_names->wildcards.elts;
|
|
|
1243 for (i = 0; i < r->virtual_names->wildcards.nelts; i++) {
|
|
|
1244
|
|
|
1245 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1246 "server name: %V", &name[i].name);
|
|
|
1247
|
|
|
1248 if (r->headers_in.host_name_len <= name[i].name.len) {
|
|
|
1249 continue;
|
|
|
1250 }
|
|
|
1251
|
|
|
1252 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1253 "server name: %s",
|
|
|
1254 r->headers_in.host->value.data
|
|
|
1255 + (r->headers_in.host_name_len - name[i].name.len));
|
|
|
1256
|
|
|
1257 if (ngx_strncmp(r->headers_in.host->value.data
|
|
|
1258 + (r->headers_in.host_name_len - name[i].name.len),
|
|
|
1259 name[i].name.data, name[i].name.len) == 0)
|
|
|
1260 {
|
|
|
1261 r->server_name.len = r->headers_in.host_name_len;
|
|
|
1262 r->server_name.data = r->headers_in.host->value.data;
|
|
|
1263
|
|
|
1264 found = 1;
|
|
|
1265 break;
|
|
|
1266 }
|
|
|
1267 }
|
|
|
1268 }
|
|
|
1269
|
|
|
1270 if (found) {
|
|
|
1271 r->srv_conf = name[i].core_srv_conf->ctx->srv_conf;
|
|
|
1272 r->loc_conf = name[i].core_srv_conf->ctx->loc_conf;
|
|
|
1273
|
|
|
1274 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1275 r->connection->log->file = clcf->err_log->file;
|
|
|
1276
|
|
|
1277 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1278 r->connection->log->log_level = clcf->err_log->log_level;
|
|
|
1279 }
|
|
|
1280
|
|
|
1281 return NGX_OK;
|
|
|
1282 }
|
|
|
1283
|
|
|
1284 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1285
|
|
|
1286 if (cscf->restrict_host_names != NGX_HTTP_RESTRICT_HOST_OFF) {
|
|
|
1287 return NGX_ERROR;
|
|
|
1288 }
|
|
|
1289
|
|
|
1290 return NGX_OK;
|
|
|
1291 }
|
|
|
1292
|
|
|
1293
|
|
0
|
1294 void ngx_http_finalize_request(ngx_http_request_t *r, int rc)
|
|
|
1295 {
|
|
|
1296 ngx_http_core_loc_conf_t *clcf;
|
|
|
1297
|
|
26
|
1298 /* r may be already destroyed when rc == NGX_DONE */
|
|
0
|
1299
|
|
|
1300 if (rc == NGX_DONE || r->main) {
|
|
|
1301 return;
|
|
|
1302 }
|
|
|
1303
|
|
|
1304 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1305 "http finalize request: %d", rc);
|
|
|
1306
|
|
|
1307 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
|
|
|
1308
|
|
|
1309 if (r->connection->read->timer_set) {
|
|
|
1310 ngx_del_timer(r->connection->read);
|
|
|
1311 }
|
|
|
1312
|
|
|
1313 if (r->connection->write->timer_set) {
|
|
|
1314 ngx_del_timer(r->connection->write);
|
|
|
1315 }
|
|
|
1316
|
|
|
1317 if (rc == NGX_HTTP_CLIENT_CLOSED_REQUEST || r->closed) {
|
|
|
1318 ngx_http_close_request(r, 0);
|
|
|
1319 ngx_http_close_connection(r->connection);
|
|
|
1320 return;
|
|
|
1321 }
|
|
|
1322
|
|
|
1323 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1324
|
|
|
1325 return;
|
|
|
1326
|
|
|
1327 } else if (rc == NGX_ERROR) {
|
|
|
1328 ngx_http_close_request(r, 0);
|
|
|
1329 ngx_http_close_connection(r->connection);
|
|
|
1330 return;
|
|
|
1331
|
|
|
1332 } else if (rc == NGX_AGAIN) {
|
|
|
1333 ngx_http_set_write_handler(r);
|
|
|
1334 return;
|
|
|
1335 }
|
|
|
1336
|
|
|
1337 if (r->connection->read->timer_set) {
|
|
|
1338 ngx_del_timer(r->connection->read);
|
|
|
1339 }
|
|
|
1340
|
|
|
1341 if (r->connection->write->timer_set) {
|
|
|
1342 r->connection->write->delayed = 0;
|
|
|
1343 ngx_del_timer(r->connection->write);
|
|
|
1344 }
|
|
|
1345
|
|
|
1346 if (r->connection->read->pending_eof) {
|
|
22
|
1347 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1348 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log,
|
|
|
1349 r->connection->read->kq_errno,
|
|
|
1350 "kevent() reported about an closed connection");
|
|
|
1351 #endif
|
|
|
1352 ngx_http_close_request(r, 0);
|
|
|
1353 ngx_http_close_connection(r->connection);
|
|
|
1354 return;
|
|
|
1355 }
|
|
|
1356
|
|
|
1357 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1358
|
|
|
1359 if (!ngx_terminate
|
|
|
1360 && !ngx_exiting
|
|
|
1361 && r->keepalive != 0
|
|
|
1362 && clcf->keepalive_timeout > 0)
|
|
|
1363 {
|
|
|
1364 ngx_http_set_keepalive(r);
|
|
|
1365 return;
|
|
|
1366
|
|
|
1367 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1368 ngx_http_set_lingering_close(r);
|
|
|
1369 return;
|
|
|
1370 }
|
|
|
1371
|
|
|
1372 ngx_http_close_request(r, 0);
|
|
|
1373 ngx_http_close_connection(r->connection);
|
|
|
1374 }
|
|
|
1375
|
|
|
1376
|
|
|
1377 static void ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
|
1378 {
|
|
|
1379 ngx_event_t *wev;
|
|
|
1380 ngx_http_core_loc_conf_t *clcf;
|
|
|
1381
|
|
|
1382 wev = r->connection->write;
|
|
|
1383 wev->event_handler = ngx_http_writer;
|
|
|
1384
|
|
|
1385 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1386
|
|
|
1387 if (wev->ready && wev->delayed) {
|
|
|
1388 return;
|
|
|
1389 }
|
|
|
1390
|
|
|
1391 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1392 ngx_http_core_module);
|
|
|
1393 if (!wev->delayed) {
|
|
|
1394 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1395 }
|
|
|
1396
|
|
2
|
1397 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1398 ngx_http_close_request(r, 0);
|
|
|
1399 ngx_http_close_connection(r->connection);
|
|
|
1400 }
|
|
|
1401
|
|
|
1402 return;
|
|
|
1403 }
|
|
|
1404
|
|
|
1405
|
|
|
1406 void ngx_http_writer(ngx_event_t *wev)
|
|
|
1407 {
|
|
|
1408 int rc;
|
|
|
1409 ngx_connection_t *c;
|
|
|
1410 ngx_http_request_t *r;
|
|
|
1411 ngx_http_core_loc_conf_t *clcf;
|
|
|
1412
|
|
|
1413 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http writer handler");
|
|
|
1414
|
|
|
1415 c = wev->data;
|
|
|
1416 r = c->data;
|
|
|
1417
|
|
|
1418 if (wev->timedout) {
|
|
|
1419 if (!wev->delayed) {
|
|
|
1420 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
1421 return;
|
|
|
1422 }
|
|
|
1423
|
|
|
1424 wev->timedout = 0;
|
|
|
1425 wev->delayed = 0;
|
|
|
1426
|
|
|
1427 if (!wev->ready) {
|
|
|
1428 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1429 ngx_http_core_module);
|
|
|
1430 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1431
|
|
2
|
1432 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1433 ngx_http_close_request(r, 0);
|
|
|
1434 ngx_http_close_connection(r->connection);
|
|
|
1435 }
|
|
|
1436
|
|
|
1437 return;
|
|
|
1438 }
|
|
|
1439
|
|
|
1440 } else {
|
|
|
1441 if (wev->delayed) {
|
|
|
1442 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1443 "http writer delayed");
|
|
|
1444
|
|
|
1445 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1446 ngx_http_core_module);
|
|
2
|
1447
|
|
|
1448 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1449 ngx_http_close_request(r, 0);
|
|
|
1450 ngx_http_close_connection(r->connection);
|
|
|
1451 }
|
|
|
1452
|
|
|
1453 return;
|
|
|
1454 }
|
|
|
1455 }
|
|
|
1456
|
|
|
1457 rc = ngx_http_output_filter(r, NULL);
|
|
|
1458
|
|
|
1459 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1460 "http writer output filter: %d", rc);
|
|
|
1461
|
|
|
1462 if (rc == NGX_AGAIN) {
|
|
|
1463 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1464 ngx_http_core_module);
|
|
|
1465 if (!wev->ready && !wev->delayed) {
|
|
|
1466 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1467 }
|
|
|
1468
|
|
2
|
1469 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1470 ngx_http_close_request(r, 0);
|
|
|
1471 ngx_http_close_connection(r->connection);
|
|
|
1472 }
|
|
|
1473
|
|
|
1474 return;
|
|
|
1475 }
|
|
|
1476
|
|
|
1477 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http writer done");
|
|
|
1478
|
|
|
1479 ngx_http_finalize_request(r, rc);
|
|
|
1480 }
|
|
|
1481
|
|
|
1482
|
|
|
1483 static void ngx_http_block_read(ngx_event_t *rev)
|
|
|
1484 {
|
|
|
1485 ngx_connection_t *c;
|
|
|
1486 ngx_http_request_t *r;
|
|
|
1487
|
|
|
1488 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http read blocked");
|
|
|
1489
|
|
|
1490 /* aio does not call this handler */
|
|
|
1491
|
|
|
1492 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
|
|
|
1493 if (ngx_del_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
1494 c = rev->data;
|
|
|
1495 r = c->data;
|
|
|
1496 ngx_http_close_request(r, 0);
|
|
|
1497 ngx_http_close_connection(c);
|
|
|
1498 }
|
|
|
1499 }
|
|
|
1500 }
|
|
|
1501
|
|
|
1502
|
|
|
1503 ngx_int_t ngx_http_discard_body(ngx_http_request_t *r)
|
|
|
1504 {
|
|
|
1505 ssize_t size;
|
|
|
1506 ngx_event_t *rev;
|
|
|
1507
|
|
|
1508 rev = r->connection->read;
|
|
|
1509
|
|
|
1510 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
|
1511
|
|
|
1512 if (rev->timer_set) {
|
|
|
1513 ngx_del_timer(rev);
|
|
|
1514 }
|
|
|
1515
|
|
|
1516 if (r->headers_in.content_length_n <= 0) {
|
|
|
1517 return NGX_OK;
|
|
|
1518 }
|
|
|
1519
|
|
|
1520 size = r->header_in->last - r->header_in->pos;
|
|
|
1521
|
|
|
1522 if (size) {
|
|
|
1523 if (r->headers_in.content_length_n > size) {
|
|
|
1524 r->headers_in.content_length_n -= size;
|
|
|
1525
|
|
|
1526 } else {
|
|
|
1527 r->header_in->pos += r->headers_in.content_length_n;
|
|
|
1528 r->headers_in.content_length_n = 0;
|
|
|
1529 return NGX_OK;
|
|
|
1530 }
|
|
|
1531 }
|
|
|
1532
|
|
|
1533 rev->event_handler = ngx_http_read_discarded_body_event;
|
|
|
1534
|
|
|
1535 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1536 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1537 }
|
|
|
1538
|
|
|
1539 return ngx_http_read_discarded_body(r);
|
|
|
1540 }
|
|
|
1541
|
|
|
1542
|
|
|
1543 static void ngx_http_read_discarded_body_event(ngx_event_t *rev)
|
|
|
1544 {
|
|
|
1545 ngx_int_t rc;
|
|
|
1546 ngx_connection_t *c;
|
|
|
1547 ngx_http_request_t *r;
|
|
|
1548
|
|
|
1549 c = rev->data;
|
|
|
1550 r = c->data;
|
|
|
1551
|
|
|
1552 rc = ngx_http_read_discarded_body(r);
|
|
|
1553
|
|
|
1554 if (rc == NGX_AGAIN) {
|
|
|
1555 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1556 ngx_http_close_request(r, rc);
|
|
|
1557 ngx_http_close_connection(c);
|
|
|
1558 return;
|
|
|
1559 }
|
|
|
1560 }
|
|
|
1561
|
|
|
1562 if (rc != NGX_OK) {
|
|
|
1563 ngx_http_close_request(r, rc);
|
|
|
1564 ngx_http_close_connection(c);
|
|
|
1565 }
|
|
|
1566 }
|
|
|
1567
|
|
|
1568
|
|
|
1569 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r)
|
|
|
1570 {
|
|
|
1571 ssize_t size, n;
|
|
|
1572 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
|
1573
|
|
|
1574 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1575 "http read discarded body");
|
|
|
1576
|
|
|
1577 if (r->headers_in.content_length_n == 0) {
|
|
|
1578 return NGX_OK;
|
|
|
1579 }
|
|
|
1580
|
|
|
1581
|
|
|
1582 size = r->headers_in.content_length_n;
|
|
|
1583
|
|
|
1584 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
|
1585 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
|
1586 }
|
|
|
1587
|
|
|
1588 n = r->connection->recv(r->connection, buffer, size);
|
|
|
1589
|
|
|
1590 if (n == NGX_ERROR) {
|
|
|
1591
|
|
|
1592 r->closed = 1;
|
|
|
1593
|
|
|
1594 /*
|
|
|
1595 * if a client request body is discarded then we already set
|
|
|
1596 * some HTTP response code for client and we can ignore the error
|
|
|
1597 */
|
|
|
1598
|
|
|
1599 return NGX_OK;
|
|
|
1600 }
|
|
|
1601
|
|
|
1602 if (n == NGX_AGAIN) {
|
|
|
1603 return NGX_AGAIN;
|
|
|
1604 }
|
|
|
1605
|
|
|
1606 r->headers_in.content_length_n -= n;
|
|
|
1607
|
|
|
1608 return NGX_OK;
|
|
|
1609 }
|
|
|
1610
|
|
|
1611
|
|
|
1612 static void ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
|
1613 {
|
|
2
|
1614 int tcp_nodelay;
|
|
0
|
1615 ngx_int_t i;
|
|
|
1616 ngx_buf_t *b, *f;
|
|
|
1617 ngx_event_t *rev, *wev;
|
|
|
1618 ngx_connection_t *c;
|
|
|
1619 ngx_http_connection_t *hc;
|
|
|
1620 ngx_http_core_srv_conf_t *cscf;
|
|
|
1621 ngx_http_core_loc_conf_t *clcf;
|
|
|
1622
|
|
|
1623 c = r->connection;
|
|
|
1624 rev = c->read;
|
|
|
1625
|
|
|
1626 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1627
|
|
32
|
1628 c->log->action = "closing request";
|
|
0
|
1629
|
|
|
1630 hc = r->http_connection;
|
|
|
1631 b = r->header_in;
|
|
|
1632
|
|
|
1633 if (b->pos < b->last) {
|
|
|
1634
|
|
|
1635 /* the pipelined request */
|
|
|
1636
|
|
|
1637 if (b != c->buffer) {
|
|
|
1638
|
|
4
|
1639 /*
|
|
|
1640 * If the large header buffers were allocated while the previous
|
|
|
1641 * request processing then we do not use c->buffer for
|
|
|
1642 * the pipelined request (see ngx_http_init_request()).
|
|
|
1643 *
|
|
|
1644 * Now we would move the large header buffers to the free list.
|
|
|
1645 */
|
|
0
|
1646
|
|
|
1647 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1648
|
|
|
1649 if (hc->free == NULL) {
|
|
|
1650 hc->free = ngx_palloc(c->pool,
|
|
|
1651 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1652
|
|
|
1653 if (hc->free == NULL) {
|
|
26
|
1654 ngx_http_close_request(r, 0);
|
|
0
|
1655 ngx_http_close_connection(c);
|
|
|
1656 return;
|
|
|
1657 }
|
|
|
1658 }
|
|
|
1659
|
|
|
1660 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1661 f = hc->busy[i];
|
|
|
1662 hc->free[hc->nfree++] = f;
|
|
|
1663 f->pos = f->start;
|
|
|
1664 f->last = f->start;
|
|
|
1665 }
|
|
|
1666
|
|
|
1667 hc->busy[0] = b;
|
|
|
1668 hc->nbusy = 1;
|
|
|
1669 }
|
|
|
1670 }
|
|
|
1671
|
|
26
|
1672 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1673
|
|
0
|
1674 ngx_http_close_request(r, 0);
|
|
|
1675 c->data = hc;
|
|
|
1676
|
|
|
1677 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1678
|
|
|
1679 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1680 ngx_http_close_connection(c);
|
|
|
1681 return;
|
|
|
1682 }
|
|
|
1683
|
|
|
1684 wev = c->write;
|
|
|
1685 wev->event_handler = ngx_http_empty_handler;
|
|
|
1686
|
|
|
1687 if (b->pos < b->last) {
|
|
|
1688
|
|
|
1689 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1690
|
|
|
1691 hc->pipeline = 1;
|
|
32
|
1692 c->log->action = "reading client pipelined request line";
|
|
0
|
1693 ngx_http_init_request(rev);
|
|
|
1694 return;
|
|
|
1695 }
|
|
|
1696
|
|
|
1697 hc->pipeline = 0;
|
|
|
1698
|
|
4
|
1699 /*
|
|
|
1700 * To keep a memory footprint as small as possible for an idle
|
|
|
1701 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1702 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1703 * The large header buffers are always allocated outside the c->pool and
|
|
|
1704 * are freed too.
|
|
|
1705 */
|
|
|
1706
|
|
0
|
1707 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1708 hc->request = NULL;
|
|
|
1709 }
|
|
|
1710
|
|
|
1711 b = c->buffer;
|
|
|
1712
|
|
|
1713 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1714
|
|
|
1715 /*
|
|
|
1716 * the special note for ngx_http_keepalive_handler() that
|
|
|
1717 * c->buffer's memory was freed
|
|
|
1718 */
|
|
|
1719
|
|
0
|
1720 b->pos = NULL;
|
|
|
1721
|
|
|
1722 } else {
|
|
|
1723 b->pos = b->start;
|
|
|
1724 b->last = b->start;
|
|
|
1725 }
|
|
|
1726
|
|
10
|
1727 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1728 hc->free, hc->nfree);
|
|
|
1729
|
|
|
1730 if (hc->free) {
|
|
|
1731 for (i = 0; i < hc->nfree; i++) {
|
|
|
1732 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1733 hc->free[i] = NULL;
|
|
|
1734 }
|
|
|
1735
|
|
|
1736 hc->nfree = 0;
|
|
|
1737 }
|
|
|
1738
|
|
10
|
1739 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1740 hc->busy, hc->nbusy);
|
|
|
1741
|
|
|
1742 if (hc->busy) {
|
|
|
1743 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1744 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1745 hc->busy[i] = NULL;
|
|
|
1746 }
|
|
|
1747
|
|
|
1748 hc->nbusy = 0;
|
|
|
1749 }
|
|
|
1750
|
|
|
1751 rev->event_handler = ngx_http_keepalive_handler;
|
|
|
1752
|
|
|
1753 if (wev->active) {
|
|
4
|
1754 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1755 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
1756 == NGX_ERROR)
|
|
|
1757 {
|
|
|
1758 ngx_http_close_connection(c);
|
|
|
1759 return;
|
|
|
1760 }
|
|
|
1761
|
|
|
1762 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
1763 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1764 ngx_http_close_connection(c);
|
|
|
1765 return;
|
|
|
1766 }
|
|
|
1767 }
|
|
|
1768 }
|
|
|
1769
|
|
32
|
1770 c->log->action = "keepalive";
|
|
0
|
1771
|
|
|
1772 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
|
1773 if (ngx_tcp_push(c->fd) == NGX_ERROR) {
|
|
|
1774 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
1775 ngx_http_close_connection(c);
|
|
|
1776 return;
|
|
|
1777 }
|
|
2
|
1778
|
|
0
|
1779 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
1780 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
1781
|
|
|
1782 } else {
|
|
22
|
1783 tcp_nodelay = 1;
|
|
|
1784 }
|
|
|
1785
|
|
32
|
1786 if (tcp_nodelay
|
|
|
1787 && clcf->tcp_nodelay
|
|
|
1788 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
1789 {
|
|
22
|
1790 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1791
|
|
|
1792 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
1793 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
1794 {
|
|
|
1795 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1796 "setsockopt(TCP_NODELAY) failed");
|
|
|
1797 ngx_http_close_connection(c);
|
|
|
1798 return;
|
|
2
|
1799 }
|
|
22
|
1800
|
|
32
|
1801 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
1802 }
|
|
|
1803
|
|
|
1804 #if 0
|
|
4
|
1805 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
1806 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
1807 #endif
|
|
|
1808
|
|
|
1809 if (rev->ready) {
|
|
|
1810 ngx_http_keepalive_handler(rev);
|
|
|
1811 }
|
|
|
1812 }
|
|
|
1813
|
|
|
1814
|
|
|
1815 static void ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
|
1816 {
|
|
|
1817 size_t size;
|
|
|
1818 ssize_t n;
|
|
|
1819 ngx_buf_t *b;
|
|
|
1820 ngx_connection_t *c;
|
|
|
1821 ngx_http_connection_t *hc;
|
|
|
1822
|
|
|
1823 c = rev->data;
|
|
|
1824
|
|
|
1825 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
1826
|
|
|
1827 if (rev->timedout) {
|
|
|
1828 ngx_http_close_connection(c);
|
|
|
1829 return;
|
|
|
1830 }
|
|
|
1831
|
|
18
|
1832 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1833
|
|
4
|
1834 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1835 if (rev->pending_eof) {
|
|
32
|
1836 c->log->handler = NULL;
|
|
0
|
1837 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
1838 "kevent() reported that client %V closed "
|
|
32
|
1839 "keepalive connection", &c->addr_text);
|
|
22
|
1840 #if (NGX_HTTP_SSL)
|
|
|
1841 if (c->ssl) {
|
|
|
1842 c->ssl->no_send_shut = 1;
|
|
|
1843 }
|
|
|
1844 #endif
|
|
0
|
1845 ngx_http_close_connection(c);
|
|
|
1846 return;
|
|
|
1847 }
|
|
|
1848 }
|
|
|
1849
|
|
|
1850 #endif
|
|
|
1851
|
|
|
1852 hc = c->data;
|
|
|
1853 b = c->buffer;
|
|
|
1854 size = b->end - b->start;
|
|
|
1855
|
|
|
1856 if (b->pos == NULL) {
|
|
4
|
1857
|
|
|
1858 /*
|
|
|
1859 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
1860 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
1861 * to keep the buffer size.
|
|
|
1862 */
|
|
|
1863
|
|
0
|
1864 if (!(b->pos = ngx_palloc(c->pool, size))) {
|
|
|
1865 ngx_http_close_connection(c);
|
|
|
1866 return;
|
|
|
1867 }
|
|
|
1868
|
|
|
1869 b->start = b->pos;
|
|
|
1870 b->last = b->pos;
|
|
|
1871 b->end = b->pos + size;
|
|
|
1872 }
|
|
|
1873
|
|
|
1874 /*
|
|
|
1875 * MSIE closes a keepalive connection with RST flag
|
|
|
1876 * so we ignore ECONNRESET here.
|
|
|
1877 */
|
|
|
1878
|
|
|
1879 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
1880 ngx_set_socket_errno(0);
|
|
|
1881
|
|
|
1882 n = c->recv(c, b->last, size);
|
|
|
1883 c->log_error = NGX_ERROR_INFO;
|
|
|
1884
|
|
|
1885 if (n == NGX_AGAIN) {
|
|
24
|
1886 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1887 ngx_http_close_connection(c);
|
|
|
1888 }
|
|
|
1889
|
|
0
|
1890 return;
|
|
|
1891 }
|
|
|
1892
|
|
|
1893 if (n == NGX_ERROR) {
|
|
|
1894 ngx_http_close_connection(c);
|
|
|
1895 return;
|
|
|
1896 }
|
|
|
1897
|
|
32
|
1898 c->log->handler = NULL;
|
|
0
|
1899
|
|
|
1900 if (n == 0) {
|
|
|
1901 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
1902 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
1903 ngx_http_close_connection(c);
|
|
|
1904 return;
|
|
|
1905 }
|
|
|
1906
|
|
|
1907 b->last += n;
|
|
32
|
1908
|
|
|
1909 c->log->handler = ngx_http_log_error;
|
|
|
1910 c->log->action = "reading client request line";
|
|
0
|
1911
|
|
|
1912 ngx_http_init_request(rev);
|
|
|
1913 }
|
|
|
1914
|
|
|
1915
|
|
|
1916 static void ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
|
1917 {
|
|
|
1918 ngx_event_t *rev, *wev;
|
|
|
1919 ngx_connection_t *c;
|
|
|
1920 ngx_http_core_loc_conf_t *clcf;
|
|
|
1921
|
|
|
1922 c = r->connection;
|
|
|
1923
|
|
|
1924 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1925
|
|
|
1926 rev = c->read;
|
|
|
1927 rev->event_handler = ngx_http_lingering_close_handler;
|
|
|
1928
|
|
|
1929 r->lingering_time = ngx_time() + clcf->lingering_time / 1000;
|
|
|
1930 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
1931
|
|
|
1932 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1933 ngx_http_close_request(r, 0);
|
|
|
1934 ngx_http_close_connection(c);
|
|
|
1935 return;
|
|
|
1936 }
|
|
|
1937
|
|
|
1938 wev = c->write;
|
|
|
1939 wev->event_handler = ngx_http_empty_handler;
|
|
|
1940
|
|
|
1941 if (wev->active) {
|
|
4
|
1942 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1943 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
1944 == NGX_ERROR)
|
|
|
1945 {
|
|
26
|
1946 ngx_http_close_request(r, 0);
|
|
0
|
1947 ngx_http_close_connection(c);
|
|
|
1948 return;
|
|
|
1949 }
|
|
|
1950
|
|
|
1951 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
1952 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
26
|
1953 ngx_http_close_request(r, 0);
|
|
0
|
1954 ngx_http_close_connection(c);
|
|
|
1955 return;
|
|
|
1956 }
|
|
|
1957 }
|
|
|
1958 }
|
|
|
1959
|
|
|
1960 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
1961 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1962 ngx_shutdown_socket_n " failed");
|
|
|
1963 ngx_http_close_request(r, 0);
|
|
|
1964 ngx_http_close_connection(c);
|
|
|
1965 return;
|
|
|
1966 }
|
|
|
1967
|
|
|
1968 if (rev->ready) {
|
|
|
1969 ngx_http_lingering_close_handler(rev);
|
|
|
1970 }
|
|
|
1971 }
|
|
|
1972
|
|
|
1973
|
|
|
1974 static void ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
|
1975 {
|
|
|
1976 ssize_t n;
|
|
|
1977 ngx_msec_t timer;
|
|
|
1978 ngx_connection_t *c;
|
|
|
1979 ngx_http_request_t *r;
|
|
|
1980 ngx_http_core_loc_conf_t *clcf;
|
|
|
1981 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
1982
|
|
|
1983 c = rev->data;
|
|
|
1984 r = c->data;
|
|
|
1985
|
|
|
1986 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1987 "http lingering close handler");
|
|
|
1988
|
|
|
1989 if (rev->timedout) {
|
|
|
1990 ngx_http_close_request(r, 0);
|
|
|
1991 ngx_http_close_connection(c);
|
|
|
1992 return;
|
|
|
1993 }
|
|
|
1994
|
|
|
1995 timer = r->lingering_time - ngx_time();
|
|
|
1996 if (timer <= 0) {
|
|
|
1997 ngx_http_close_request(r, 0);
|
|
|
1998 ngx_http_close_connection(c);
|
|
|
1999 return;
|
|
|
2000 }
|
|
|
2001
|
|
|
2002 do {
|
|
|
2003 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2004
|
|
|
2005 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2006
|
|
|
2007 if (n == NGX_ERROR || n == 0) {
|
|
|
2008 ngx_http_close_request(r, 0);
|
|
|
2009 ngx_http_close_connection(c);
|
|
|
2010 return;
|
|
|
2011 }
|
|
|
2012
|
|
|
2013 } while (rev->ready);
|
|
|
2014
|
|
24
|
2015 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
26
|
2016 ngx_http_close_request(r, 0);
|
|
24
|
2017 ngx_http_close_connection(c);
|
|
|
2018 return;
|
|
|
2019 }
|
|
|
2020
|
|
0
|
2021 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2022
|
|
|
2023 timer *= 1000;
|
|
|
2024
|
|
|
2025 if (timer > clcf->lingering_timeout) {
|
|
|
2026 timer = clcf->lingering_timeout;
|
|
|
2027 }
|
|
|
2028
|
|
|
2029 ngx_add_timer(rev, timer);
|
|
|
2030 }
|
|
|
2031
|
|
|
2032
|
|
|
2033 void ngx_http_empty_handler(ngx_event_t *wev)
|
|
|
2034 {
|
|
|
2035 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2036
|
|
|
2037 return;
|
|
|
2038 }
|
|
|
2039
|
|
|
2040
|
|
|
2041 ngx_int_t ngx_http_send_last(ngx_http_request_t *r)
|
|
|
2042 {
|
|
|
2043 ngx_buf_t *b;
|
|
|
2044 ngx_chain_t out;
|
|
|
2045
|
|
|
2046 if (!(b = ngx_calloc_buf(r->pool))) {
|
|
|
2047 return NGX_ERROR;
|
|
|
2048 }
|
|
|
2049
|
|
|
2050 b->last_buf = 1;
|
|
|
2051 out.buf = b;
|
|
|
2052 out.next = NULL;
|
|
|
2053
|
|
|
2054 return ngx_http_output_filter(r, &out);
|
|
|
2055 }
|
|
|
2056
|
|
|
2057
|
|
|
2058 void ngx_http_close_request(ngx_http_request_t *r, int error)
|
|
|
2059 {
|
|
|
2060 ngx_uint_t i;
|
|
|
2061 ngx_log_t *log;
|
|
|
2062 ngx_http_log_ctx_t *ctx;
|
|
|
2063 ngx_http_cleanup_t *cleanup;
|
|
|
2064 ngx_http_core_loc_conf_t *clcf;
|
|
|
2065 struct linger l;
|
|
|
2066
|
|
|
2067 log = r->connection->log;
|
|
|
2068
|
|
|
2069 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2070
|
|
|
2071 if (r->pool == NULL) {
|
|
|
2072 ngx_log_error(NGX_LOG_ALERT, log, 0,
|
|
|
2073 "http request already closed");
|
|
|
2074 return;
|
|
|
2075 }
|
|
|
2076
|
|
|
2077 #if (NGX_STAT_STUB)
|
|
|
2078 if (r->stat_reading) {
|
|
|
2079 (*ngx_stat_reading)--;
|
|
|
2080 }
|
|
|
2081
|
|
|
2082 if (r->stat_writing) {
|
|
|
2083 (*ngx_stat_writing)--;
|
|
|
2084 }
|
|
|
2085 #endif
|
|
|
2086
|
|
|
2087 if (error && r->headers_out.status == 0) {
|
|
|
2088 r->headers_out.status = error;
|
|
|
2089 }
|
|
|
2090
|
|
|
2091 ngx_http_log_handler(r);
|
|
|
2092
|
|
|
2093 cleanup = r->cleanup.elts;
|
|
|
2094 for (i = 0; i < r->cleanup.nelts; i++) {
|
|
|
2095 if (!cleanup[i].valid) {
|
|
|
2096 continue;
|
|
|
2097 }
|
|
|
2098
|
|
|
2099 #if (NGX_HTTP_CACHE)
|
|
|
2100
|
|
|
2101 if (cleanup[i].cache) {
|
|
|
2102 ngx_http_cache_unlock(cleanup[i].data.cache.hash,
|
|
|
2103 cleanup[i].data.cache.cache, log);
|
|
|
2104 continue;
|
|
|
2105 }
|
|
|
2106
|
|
|
2107 #endif
|
|
|
2108
|
|
|
2109 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http cleanup fd: %d",
|
|
|
2110 cleanup[i].data.file.fd);
|
|
|
2111
|
|
|
2112 if (ngx_close_file(cleanup[i].data.file.fd) == NGX_FILE_ERROR) {
|
|
|
2113 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
|
2114 ngx_close_file_n " \"%s\" failed",
|
|
|
2115 cleanup[i].data.file.name);
|
|
|
2116 }
|
|
|
2117 }
|
|
|
2118
|
|
|
2119 /* STUB */
|
|
|
2120 if (r->file.fd != NGX_INVALID_FILE) {
|
|
|
2121 if (ngx_close_file(r->file.fd) == NGX_FILE_ERROR) {
|
|
|
2122 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
10
|
2123 ngx_close_file_n " \"%V\" failed", &r->file.name);
|
|
0
|
2124 }
|
|
|
2125 }
|
|
|
2126
|
|
|
2127 if (r->request_body
|
|
|
2128 && r->request_body->temp_file
|
|
|
2129 && r->request_body->temp_file->file.fd != NGX_INVALID_FILE)
|
|
|
2130 {
|
|
|
2131 if (ngx_close_file(r->request_body->temp_file->file.fd)
|
|
|
2132 == NGX_FILE_ERROR)
|
|
|
2133 {
|
|
|
2134 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
10
|
2135 ngx_close_file_n " deleted file \"%V\" failed",
|
|
|
2136 &r->request_body->temp_file->file.name);
|
|
0
|
2137 }
|
|
|
2138 }
|
|
|
2139
|
|
|
2140 if (r->connection->timedout) {
|
|
|
2141 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2142
|
|
|
2143 if (clcf->reset_timedout_connection) {
|
|
|
2144 l.l_onoff = 1;
|
|
|
2145 l.l_linger = 0;
|
|
|
2146
|
|
|
2147 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
|
2148 (const void *) &l, sizeof(struct linger)) == -1)
|
|
|
2149 {
|
|
|
2150 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2151 "setsockopt(SO_LINGER) failed");
|
|
|
2152 }
|
|
|
2153 }
|
|
|
2154 }
|
|
|
2155
|
|
10
|
2156 /* the variuos request strings were allocated from r->pool */
|
|
0
|
2157 ctx = log->data;
|
|
10
|
2158 ctx->request = NULL;
|
|
0
|
2159
|
|
|
2160 r->request_line.len = 0;
|
|
|
2161
|
|
|
2162 ngx_destroy_pool(r->pool);
|
|
|
2163 }
|
|
|
2164
|
|
|
2165
|
|
|
2166 #if (NGX_HTTP_SSL)
|
|
|
2167
|
|
|
2168 void ngx_ssl_close_handler(ngx_event_t *ev)
|
|
|
2169 {
|
|
|
2170 ngx_connection_t *c;
|
|
|
2171
|
|
|
2172 c = ev->data;
|
|
|
2173
|
|
|
2174 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0, "http ssl close handler");
|
|
|
2175
|
|
|
2176 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2177 return;
|
|
|
2178 }
|
|
|
2179
|
|
|
2180 ngx_http_close_connection(c);
|
|
|
2181 }
|
|
|
2182
|
|
|
2183 #endif
|
|
|
2184
|
|
|
2185
|
|
|
2186 void ngx_http_close_connection(ngx_connection_t *c)
|
|
|
2187 {
|
|
28
|
2188 ngx_pool_t *pool;
|
|
|
2189
|
|
0
|
2190 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2191 "close http connection: %d", c->fd);
|
|
|
2192
|
|
2
|
2193 #if (NGX_OPENSSL)
|
|
|
2194
|
|
|
2195 if (c->ssl) {
|
|
|
2196 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2197 c->read->event_handler = ngx_ssl_close_handler;
|
|
|
2198 c->write->event_handler = ngx_ssl_close_handler;
|
|
|
2199 return;
|
|
|
2200 }
|
|
|
2201 }
|
|
|
2202
|
|
|
2203 #endif
|
|
|
2204
|
|
0
|
2205 #if (NGX_STAT_STUB)
|
|
|
2206 (*ngx_stat_active)--;
|
|
|
2207 #endif
|
|
|
2208
|
|
28
|
2209 pool = c->pool;
|
|
|
2210
|
|
0
|
2211 ngx_close_connection(c);
|
|
28
|
2212
|
|
|
2213 ngx_destroy_pool(c->pool);
|
|
0
|
2214 }
|
|
|
2215
|
|
|
2216
|
|
|
2217 static void ngx_http_client_error(ngx_http_request_t *r,
|
|
|
2218 int client_error, int error)
|
|
|
2219 {
|
|
10
|
2220 u_char *p;
|
|
0
|
2221 ngx_http_log_ctx_t *ctx;
|
|
|
2222 ngx_http_core_srv_conf_t *cscf;
|
|
|
2223
|
|
|
2224 ctx = r->connection->log->data;
|
|
|
2225
|
|
|
2226 if (error == NGX_HTTP_REQUEST_TIME_OUT) {
|
|
|
2227 ngx_log_error(NGX_LOG_INFO, r->connection->log, NGX_ETIMEDOUT,
|
|
|
2228 "client timed out");
|
|
|
2229 r->connection->timedout = 1;
|
|
|
2230 ngx_http_close_request(r, error);
|
|
|
2231 ngx_http_close_connection(r->connection);
|
|
|
2232 return;
|
|
|
2233 }
|
|
|
2234
|
|
|
2235 r->connection->log->handler = NULL;
|
|
|
2236
|
|
10
|
2237 if (ctx->request) {
|
|
|
2238
|
|
0
|
2239 switch (client_error) {
|
|
|
2240
|
|
|
2241 case NGX_HTTP_PARSE_INVALID_HOST:
|
|
|
2242 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
10
|
2243 "client %V sent invalid \"Host\" header \"%V\", URL: \"%V\"",
|
|
|
2244 ctx->client, &r->headers_in.host->value,
|
|
|
2245 &ctx->request->unparsed_uri);
|
|
0
|
2246
|
|
|
2247 error = NGX_HTTP_INVALID_HOST;
|
|
|
2248
|
|
|
2249 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
2250
|
|
|
2251 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_CLOSE) {
|
|
|
2252 ngx_http_close_request(r, error);
|
|
|
2253 ngx_http_close_connection(r->connection);
|
|
|
2254 return;
|
|
|
2255 }
|
|
|
2256
|
|
|
2257 break;
|
|
|
2258
|
|
|
2259 case NGX_HTTP_PARSE_HTTP_TO_HTTPS:
|
|
|
2260 error = NGX_HTTP_TO_HTTPS;
|
|
10
|
2261 if (ctx->request->headers_in.referer) {
|
|
|
2262 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2263 "client %V sent plain HTTP request to HTTPS port, "
|
|
|
2264 "URL: \"%V\", referrer \"%V\"",
|
|
|
2265 ctx->client, &ctx->request->unparsed_uri,
|
|
|
2266 &ctx->request->headers_in.referer->value);
|
|
|
2267
|
|
|
2268 } else {
|
|
|
2269 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2270 "client %V sent plain HTTP request to HTTPS port, "
|
|
|
2271 "URL: \"%V\"", ctx->client, &ctx->request->unparsed_uri);
|
|
|
2272 }
|
|
|
2273
|
|
|
2274 break;
|
|
0
|
2275
|
|
|
2276 default:
|
|
|
2277 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2278 client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
|
|
10
|
2279 ctx->client, &ctx->request->unparsed_uri);
|
|
0
|
2280 }
|
|
|
2281
|
|
|
2282 } else {
|
|
10
|
2283
|
|
0
|
2284 if (error == NGX_HTTP_REQUEST_URI_TOO_LARGE) {
|
|
|
2285 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
2286 r->request_line.data = r->request_start;
|
|
10
|
2287
|
|
|
2288 } else {
|
|
|
2289 if (r->request_line.data == NULL) {
|
|
|
2290 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2291 if (*p == CR || *p == LF) {
|
|
|
2292 break;
|
|
|
2293 }
|
|
|
2294 }
|
|
|
2295
|
|
|
2296 r->request_line.len = p - r->request_start;
|
|
|
2297 r->request_line.data = r->request_start;
|
|
|
2298 }
|
|
0
|
2299 }
|
|
|
2300
|
|
|
2301 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2302 client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
|
|
10
|
2303 ctx->client, &r->request_line);
|
|
0
|
2304 }
|
|
|
2305
|
|
|
2306 r->connection->log->handler = ngx_http_log_error;
|
|
|
2307
|
|
|
2308 ngx_http_finalize_request(r, error);
|
|
|
2309 }
|
|
|
2310
|
|
|
2311
|
|
32
|
2312 static u_char *ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2313 {
|
|
32
|
2314 u_char *p;
|
|
|
2315 ngx_http_log_ctx_t *ctx;
|
|
10
|
2316
|
|
|
2317 p = buf;
|
|
|
2318
|
|
32
|
2319 ctx = log->data;
|
|
|
2320
|
|
|
2321 if (log->action) {
|
|
|
2322 p = ngx_snprintf(p, len, " while %s", log->action);
|
|
10
|
2323 len -= p - buf;
|
|
|
2324 }
|
|
|
2325
|
|
|
2326 p = ngx_snprintf(p, len, ", client: %V", ctx->client);
|
|
|
2327
|
|
|
2328 if (ctx->request == NULL) {
|
|
|
2329 return p;
|
|
0
|
2330 }
|
|
10
|
2331
|
|
|
2332 len -= p - buf;
|
|
|
2333
|
|
|
2334 p = ngx_snprintf(p, len, ", URL: \"%V\"", &ctx->request->unparsed_uri);
|
|
|
2335
|
|
|
2336 if (ctx->request->headers_in.referer == NULL) {
|
|
|
2337 return p;
|
|
|
2338 }
|
|
|
2339
|
|
|
2340 len -= p - buf;
|
|
|
2341
|
|
|
2342 return ngx_snprintf(p, len, ", referrer: \"%V\"",
|
|
|
2343 &ctx->request->headers_in.referer->value);
|
|
0
|
2344 }
|
