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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_http.h>
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11
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12
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13 static void ngx_http_init_request(ngx_event_t *ev);
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14 #if (NGX_HTTP_SSL)
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15 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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16 #endif
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17 static void ngx_http_process_request_line(ngx_event_t *rev);
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18 static void ngx_http_process_request_headers(ngx_event_t *rev);
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19 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
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20 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
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21 ngx_uint_t request_line);
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22 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
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23
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24 static void ngx_http_set_write_handler(ngx_http_request_t *r);
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25
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26 static void ngx_http_block_read(ngx_event_t *ev);
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27 static void ngx_http_read_discarded_body_event(ngx_event_t *rev);
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28 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r);
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29
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30 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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31 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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32 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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33 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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34
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35 static void ngx_http_client_error(ngx_http_request_t *r,
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36 int client_error, int error);
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37 static size_t ngx_http_log_error(void *data, char *buf, size_t len);
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38
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39
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40 /* NGX_HTTP_PARSE_... errors */
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41
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42 static char *client_header_errors[] = {
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43 "client %s sent invalid method",
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44 "client %s sent invalid request",
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45 "client %s sent too long URI",
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46 "client %s sent invalid method in HTTP/0.9 request",
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47
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48 "client %s sent invalid header, URL: %s",
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49 "client %s sent too long header line, URL: %s",
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50 "client %s sent HTTP/1.1 request without \"Host\" header, URL: %s",
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51 "client %s sent invalid \"Content-Length\" header, URL: %s",
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52 "client %s sent POST method without \"Content-Length\" header, URL: %s",
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53 "client %s sent plain HTTP request to HTTPS port, URL: %s",
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54 "client %s sent invalid \"Host\" header \"%s\", URL: %s"
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55 };
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56
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57
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58 ngx_http_header_t ngx_http_headers_in[] = {
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59 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host) },
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60 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection) },
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61 { ngx_string("If-Modified-Since"),
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62 offsetof(ngx_http_headers_in_t, if_modified_since) },
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63 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent) },
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64 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer) },
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65 { ngx_string("Content-Length"),
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66 offsetof(ngx_http_headers_in_t, content_length) },
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67
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68 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range) },
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69 #if 0
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70 { ngx_string("If-Range"), offsetof(ngx_http_headers_in_t, if_range) },
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71 #endif
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72
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73 #if (NGX_HTTP_GZIP)
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74 { ngx_string("Accept-Encoding"),
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75 offsetof(ngx_http_headers_in_t, accept_encoding) },
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76 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via) },
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77 #endif
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78
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79 { ngx_string("Authorization"),
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80 offsetof(ngx_http_headers_in_t, authorization) },
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81
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82 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive) },
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83
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84 #if (NGX_HTTP_PROXY)
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85 { ngx_string("X-Forwarded-For"),
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86 offsetof(ngx_http_headers_in_t, x_forwarded_for) },
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6
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87 { ngx_string("X-Real-IP"), offsetof(ngx_http_headers_in_t, x_real_ip) },
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88 { ngx_string("X-URL"), offsetof(ngx_http_headers_in_t, x_url) },
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0
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89 #endif
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90
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91 { ngx_null_string, 0 }
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92 };
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93
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94
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95 #if 0
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96 static void ngx_http_dummy(ngx_event_t *wev)
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97 {
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98 return;
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99 }
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100 #endif
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101
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102
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103 void ngx_http_init_connection(ngx_connection_t *c)
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104 {
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105 ngx_event_t *rev;
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106 ngx_http_log_ctx_t *ctx;
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107
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108 if (!(ctx = ngx_pcalloc(c->pool, sizeof(ngx_http_log_ctx_t)))) {
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109 ngx_http_close_connection(c);
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110 return;
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111 }
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112
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113 ctx->connection = c->number;
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114 ctx->client = c->addr_text.data;
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115 ctx->action = "reading client request line";
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116 c->log->data = ctx;
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117 c->log->handler = ngx_http_log_error;
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118 c->log_error = NGX_ERROR_INFO;
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119
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120 rev = c->read;
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121 rev->event_handler = ngx_http_init_request;
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122
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123 /* STUB: epoll edge */ c->write->event_handler = ngx_http_empty_handler;
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124
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125 if (rev->ready) {
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126 /* the deferred accept(), rtsig, aio, iocp */
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127
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128 if (ngx_accept_mutex) {
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129 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
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130 ngx_http_close_connection(c);
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131 return;
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132 }
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133
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134 ngx_post_event(rev);
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135
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136 ngx_mutex_unlock(ngx_posted_events_mutex);
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137 return;
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138 }
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139
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140 #if (NGX_STAT_STUB)
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141 (*ngx_stat_reading)++;
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142 #endif
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143
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144 ngx_http_init_request(rev);
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145 return;
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146 }
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147
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148 ngx_add_timer(rev, c->listening->post_accept_timeout);
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149
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150 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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151 ngx_http_close_connection(c);
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152 return;
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153 }
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154
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155 #if 0
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156 /* TODO: learn SO_SNDBUF (to use in zerocopy) via kqueue's EV_CLEAR event */
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157
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158 c->write->ready = 0;
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159 c->write->event_handler = ngx_http_dummy;
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160
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161 if (ngx_handle_write_event(c->write, 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 #endif
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166
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167 #if (NGX_STAT_STUB)
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168 (*ngx_stat_reading)++;
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169 #endif
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170
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171 }
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172
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173
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174 static void ngx_http_init_request(ngx_event_t *rev)
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175 {
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176 ngx_uint_t i;
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177 socklen_t len;
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178 struct sockaddr_in addr_in;
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179 ngx_connection_t *c;
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180 ngx_http_request_t *r;
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181 ngx_http_in_port_t *in_port;
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182 ngx_http_in_addr_t *in_addr;
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183 ngx_http_connection_t *hc;
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184 ngx_http_server_name_t *server_name;
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185 ngx_http_core_srv_conf_t *cscf;
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186 ngx_http_core_loc_conf_t *clcf;
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187 #if (NGX_HTTP_SSL)
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188 ngx_http_ssl_srv_conf_t *sscf;
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189 #endif
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190
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191 c = rev->data;
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192
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193 if (rev->timedout) {
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194 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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195
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196 #if (NGX_STAT_STUB)
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197 (*ngx_stat_reading)--;
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198 #endif
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199
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200 ngx_http_close_connection(c);
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201 return;
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202 }
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203
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204 hc = c->data;
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205
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206 if (hc) {
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207
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208 #if (NGX_STAT_STUB)
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209 (*ngx_stat_reading)++;
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210 #endif
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211
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212 } else {
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213 if (!(hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t)))) {
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214
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215 #if (NGX_STAT_STUB)
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216 (*ngx_stat_reading)--;
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217 #endif
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218
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219 ngx_http_close_connection(c);
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220 return;
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221 }
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222 }
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223
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224 r = hc->request;
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225
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226 if (r) {
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227 ngx_memzero(r, sizeof(ngx_http_request_t));
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228
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229 r->pipeline = hc->pipeline;
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230
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231 if (hc->nbusy) {
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232 r->header_in = hc->busy[0];
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233 }
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234
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235 } else {
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236 if (!(r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t)))) {
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237
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238 #if (NGX_STAT_STUB)
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239 (*ngx_stat_reading)--;
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240 #endif
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241
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242 ngx_http_close_connection(c);
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243 return;
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244 }
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245
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246 hc->request = r;
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247 }
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248
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249 #if (NGX_STAT_STUB)
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250 r->stat_reading = 1;
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251 #endif
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252
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253 c->data = r;
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254 r->http_connection = hc;
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255
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256 c->sent = 0;
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257 r->signature = NGX_HTTP_MODULE;
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258
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259 /* find the server configuration for the address:port */
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260
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261 /* AF_INET only */
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262
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263 in_port = c->servers;
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264 in_addr = in_port->addrs.elts;
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265
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266 r->port = in_port->port;
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267 r->port_text = &in_port->port_text;
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268
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269 i = 0;
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270
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271 if (in_port->addrs.nelts > 1) {
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272
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273 /*
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274 * There are several addresses on this port and one of them
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275 * is the "*:port" wildcard so getsockname() is needed to determine
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276 * the server address.
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277 *
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278 * AcceptEx() already gave this address.
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279 */
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280
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281 #if (WIN32)
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282 if (c->local_sockaddr) {
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283 r->in_addr =
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284 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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285
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286 } else {
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287 #endif
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288 len = sizeof(struct sockaddr_in);
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289 if (getsockname(c->fd, (struct sockaddr *) &addr_in, &len) == -1) {
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290 ngx_connection_error(c, ngx_socket_errno,
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291 "getsockname() failed");
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292 ngx_http_close_connection(c);
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293 return;
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294 }
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295
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296 r->in_addr = addr_in.sin_addr.s_addr;
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297
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298 #if (WIN32)
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299 }
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300 #endif
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301
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302 /* the last in_port->addrs address is "*" */
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303
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304 for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) {
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305 if (in_addr[i].addr == r->in_addr) {
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306 break;
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307 }
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308 }
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309
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310 } else {
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311 r->in_addr = in_addr[0].addr;
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312 }
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313
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314 r->virtual_names = &in_addr[i].names;
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315
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316 /* the default server configuration for the address:port */
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317 cscf = in_addr[i].core_srv_conf;
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318
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319 r->main_conf = cscf->ctx->main_conf;
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320 r->srv_conf = cscf->ctx->srv_conf;
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321 r->loc_conf = cscf->ctx->loc_conf;
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322
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323 rev->event_handler = ngx_http_process_request_line;
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324
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325 #if (NGX_HTTP_SSL)
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326
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327 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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328 if (sscf->enable) {
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329
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330 if (c->ssl == NULL) {
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331 if (ngx_ssl_create_session(sscf->ssl_ctx, c, NGX_SSL_BUFFER)
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332 == NGX_ERROR)
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333 {
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334 ngx_http_close_connection(c);
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335 return;
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336 }
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337
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338 /*
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339 * The majority of browsers do not send the "close notify" alert.
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340 * Among them are MSIE, Mozilla, Netscape 4, Konqueror, and Links.
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341 * And what is more MSIE ignores the server's alert.
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342 *
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343 * Opera always sends the alert.
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344 */
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345
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346 c->ssl->no_rcv_shut = 1;
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347 rev->event_handler = ngx_http_ssl_handshake;
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348 }
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349
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350 r->filter_need_in_memory = 1;
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351 }
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352
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353 #endif
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354
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355 server_name = cscf->server_names.elts;
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6
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356 r->server_name = server_name->name;
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0
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357
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358 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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359 c->log->file = clcf->err_log->file;
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360 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
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361 c->log->log_level = clcf->err_log->log_level;
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362 }
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363
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364 if (c->buffer == NULL) {
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365 c->buffer = ngx_create_temp_buf(c->pool,
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366 cscf->client_header_buffer_size);
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367 if (c->buffer == NULL) {
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368 ngx_http_close_connection(c);
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369 return;
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370 }
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371 }
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372
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373 if (r->header_in == NULL) {
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374 r->header_in = c->buffer;
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375 }
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376
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377 if (!(r->pool = ngx_create_pool(cscf->request_pool_size, c->log))) {
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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 if (ngx_array_init(&r->cleanup, r->pool, 5, sizeof(ngx_http_cleanup_t))
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383 == NGX_ERROR)
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384 {
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385 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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386 ngx_http_close_connection(c);
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387 return;
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388 }
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389
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390
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391 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
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392 sizeof(ngx_table_elt_t)) == NGX_ERROR)
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393 {
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394 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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395 ngx_http_close_connection(c);
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396 return;
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397 }
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398
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399
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400 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
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401 if (r->ctx == NULL) {
|
|
|
402 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
403 ngx_http_close_connection(c);
|
|
|
404 return;
|
|
|
405 }
|
|
|
406
|
|
|
407 c->single_connection = 1;
|
|
|
408 r->connection = c;
|
|
|
409
|
|
|
410 r->file.fd = NGX_INVALID_FILE;
|
|
|
411
|
|
|
412 r->headers_in.content_length_n = -1;
|
|
|
413 r->headers_in.keep_alive_n = -1;
|
|
|
414 r->headers_out.content_length_n = -1;
|
|
|
415 r->headers_out.last_modified_time = -1;
|
|
|
416
|
|
|
417 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
418
|
|
|
419 #if (NGX_STAT_STUB)
|
|
|
420 (*ngx_stat_requests)++;
|
|
|
421 #endif
|
|
|
422
|
|
|
423 rev->event_handler(rev);
|
|
|
424 }
|
|
|
425
|
|
|
426
|
|
|
427 #if (NGX_HTTP_SSL)
|
|
|
428
|
|
|
429 static void ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
|
430 {
|
|
|
431 int n;
|
|
|
432 ngx_int_t rc;
|
|
|
433 u_char buf[1];
|
|
|
434 ngx_connection_t *c;
|
|
|
435 ngx_http_request_t *r;
|
|
|
436
|
|
|
437 c = rev->data;
|
|
|
438 r = c->data;
|
|
|
439
|
|
|
440 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
441 "http check ssl handshake");
|
|
|
442
|
|
|
443 if (rev->timedout) {
|
|
|
444 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
445 return;
|
|
|
446 }
|
|
|
447
|
|
|
448 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
449
|
|
|
450 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
451 return;
|
|
|
452 }
|
|
|
453
|
|
|
454 if (n == 1) {
|
|
|
455 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
456 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
457 "https ssl handshake: 0x%X", buf[0]);
|
|
|
458
|
|
|
459 c->recv = ngx_ssl_recv;
|
|
|
460 c->send_chain = ngx_ssl_send_chain;
|
|
|
461
|
|
|
462 rc = ngx_ssl_handshake(c);
|
|
|
463
|
|
|
464 if (rc == NGX_ERROR) {
|
|
|
465 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
466 ngx_http_close_connection(r->connection);
|
|
|
467 return;
|
|
|
468 }
|
|
|
469
|
|
|
470 if (rc != NGX_OK) {
|
|
|
471 return;
|
|
|
472 }
|
|
|
473
|
|
|
474 } else {
|
|
|
475 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
476 "plain http");
|
|
|
477
|
|
|
478 r->plain_http = 1;
|
|
|
479 }
|
|
|
480 }
|
|
|
481
|
|
|
482 rev->event_handler = ngx_http_process_request_line;
|
|
|
483 ngx_http_process_request_line(rev);
|
|
|
484 }
|
|
|
485
|
|
|
486 #endif
|
|
|
487
|
|
|
488
|
|
|
489 static void ngx_http_process_request_line(ngx_event_t *rev)
|
|
|
490 {
|
|
|
491 u_char *p;
|
|
|
492 ssize_t n;
|
|
|
493 ngx_int_t rc, rv;
|
|
|
494 ngx_connection_t *c;
|
|
|
495 ngx_http_request_t *r;
|
|
|
496 ngx_http_log_ctx_t *ctx;
|
|
|
497
|
|
|
498 c = rev->data;
|
|
|
499 r = c->data;
|
|
|
500
|
|
|
501 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
502 "http process request line");
|
|
|
503
|
|
|
504 if (rev->timedout) {
|
|
|
505 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
506 return;
|
|
|
507 }
|
|
|
508
|
|
|
509 rc = NGX_AGAIN;
|
|
|
510
|
|
|
511 for ( ;; ) {
|
|
|
512
|
|
|
513 if (rc == NGX_AGAIN) {
|
|
|
514 n = ngx_http_read_request_header(r);
|
|
|
515
|
|
|
516 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
517 return;
|
|
|
518 }
|
|
|
519 }
|
|
|
520
|
|
|
521 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
522
|
|
|
523 if (rc == NGX_OK) {
|
|
|
524
|
|
|
525 /* the request line has been parsed successfully */
|
|
|
526
|
|
|
527 /* copy unparsed URI */
|
|
|
528
|
|
|
529 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
530 r->unparsed_uri.data = ngx_palloc(r->pool, r->unparsed_uri.len + 1);
|
|
|
531 if (r->unparsed_uri.data == NULL) {
|
|
|
532 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
533 ngx_http_close_connection(c);
|
|
|
534 return;
|
|
|
535 }
|
|
|
536
|
|
|
537 ngx_cpystrn(r->unparsed_uri.data, r->uri_start,
|
|
|
538 r->unparsed_uri.len + 1);
|
|
|
539
|
|
|
540
|
|
|
541 /* copy URI */
|
|
|
542
|
|
|
543 if (r->args_start) {
|
|
|
544 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
545 } else {
|
|
|
546 r->uri.len = r->uri_end - r->uri_start;
|
|
|
547 }
|
|
|
548
|
|
|
549 if (!(r->uri.data = ngx_palloc(r->pool, r->uri.len + 1))) {
|
|
|
550 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
551 ngx_http_close_connection(c);
|
|
|
552 return;
|
|
|
553 }
|
|
|
554
|
|
2
|
555 if (r->complex_uri || r->quoted_uri) {
|
|
0
|
556 rc = ngx_http_parse_complex_uri(r);
|
|
|
557
|
|
|
558 if (rc == NGX_HTTP_INTERNAL_SERVER_ERROR) {
|
|
|
559 ngx_http_close_request(r, rc);
|
|
|
560 ngx_http_close_connection(c);
|
|
|
561 return;
|
|
|
562 }
|
|
|
563
|
|
|
564 if (rc != NGX_OK) {
|
|
|
565 r->request_line.len = r->request_end - r->request_start;
|
|
|
566 r->request_line.data = r->request_start;
|
|
|
567
|
|
|
568 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
569 return;
|
|
|
570 }
|
|
|
571
|
|
|
572 } else {
|
|
|
573 ngx_cpystrn(r->uri.data, r->uri_start, r->uri.len + 1);
|
|
|
574 }
|
|
|
575
|
|
|
576
|
|
|
577 r->request_line.len = r->request_end - r->request_start;
|
|
|
578 r->request_line.data = r->request_start;
|
|
|
579 r->request_line.data[r->request_line.len] = '\0';
|
|
|
580
|
|
|
581 if (r->method == 0) {
|
|
|
582 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
583 r->method_name.data = r->request_line.data;
|
|
|
584 }
|
|
|
585
|
|
|
586 if (r->uri_ext) {
|
|
|
587
|
|
|
588 /* copy URI extention */
|
|
|
589
|
|
|
590 if (r->args_start) {
|
|
|
591 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
592 } else {
|
|
|
593 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
594 }
|
|
|
595
|
|
|
596 if (!(r->exten.data = ngx_palloc(r->pool, r->exten.len + 1))) {
|
|
|
597 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
598 ngx_http_close_connection(c);
|
|
|
599 return;
|
|
|
600 }
|
|
|
601
|
|
|
602 ngx_cpystrn(r->exten.data, r->uri_ext, r->exten.len + 1);
|
|
|
603 }
|
|
|
604
|
|
|
605 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
606
|
|
|
607 /* copy URI arguments */
|
|
|
608
|
|
|
609 r->args.len = r->uri_end - r->args_start;
|
|
|
610
|
|
|
611 if (!(r->args.data = ngx_palloc(r->pool, r->args.len + 1))) {
|
|
|
612 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
613 ngx_http_close_connection(c);
|
|
|
614 return;
|
|
|
615 }
|
|
|
616
|
|
|
617 ngx_cpystrn(r->args.data, r->args_start, r->args.len + 1);
|
|
|
618 }
|
|
|
619
|
|
|
620 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
621 "http request line: \"%s\"", r->request_line.data);
|
|
|
622
|
|
|
623 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
624 "http uri: \"%s\"", r->uri.data);
|
|
|
625
|
|
|
626 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
627 "http args: \"%s\"",
|
|
|
628 r->args.data ? r->args.data : (u_char *) "");
|
|
|
629
|
|
|
630 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
631 "http exten: \"%s\"",
|
|
|
632 r->exten.data ? r->exten.data : (u_char *) "");
|
|
|
633
|
|
|
634 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
|
635 rev->event_handler = ngx_http_block_read;
|
|
|
636 ngx_http_handler(r);
|
|
|
637 return;
|
|
|
638 }
|
|
|
639
|
|
|
640
|
|
|
641 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
|
642 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
|
643 {
|
|
|
644 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
645 ngx_http_close_connection(c);
|
|
|
646 return;
|
|
|
647 }
|
|
|
648
|
|
|
649
|
|
|
650 if (ngx_array_init(&r->headers_in.cookies, r->pool, 5,
|
|
|
651 sizeof(ngx_table_elt_t *)) == NGX_ERROR)
|
|
|
652 {
|
|
|
653 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
654 ngx_http_close_connection(c);
|
|
|
655 return;
|
|
|
656 }
|
|
|
657
|
|
|
658
|
|
|
659 ctx = c->log->data;
|
|
|
660 ctx->action = "reading client request headers";
|
|
|
661 ctx->url = r->unparsed_uri.data;
|
|
|
662
|
|
|
663 rev->event_handler = ngx_http_process_request_headers;
|
|
|
664 ngx_http_process_request_headers(rev);
|
|
|
665
|
|
|
666 return;
|
|
|
667
|
|
|
668 } else if (rc != NGX_AGAIN) {
|
|
|
669
|
|
|
670 /* there was error while a request line parsing */
|
|
|
671
|
|
|
672 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
673 if (*p == CR || *p == LF) {
|
|
|
674 break;
|
|
|
675 }
|
|
|
676 }
|
|
|
677
|
|
|
678 r->request_line.len = p - r->request_start;
|
|
|
679 r->request_line.data = r->request_start;
|
|
|
680
|
|
|
681 if (rc == NGX_HTTP_PARSE_INVALID_METHOD) {
|
|
|
682 r->http_version = NGX_HTTP_VERSION_10;
|
|
|
683 }
|
|
|
684
|
|
|
685 ngx_http_client_error(r, rc,
|
|
|
686 (rc == NGX_HTTP_PARSE_INVALID_METHOD) ?
|
|
|
687 NGX_HTTP_NOT_IMPLEMENTED:
|
|
|
688 NGX_HTTP_BAD_REQUEST);
|
|
|
689 return;
|
|
|
690 }
|
|
|
691
|
|
|
692 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
693
|
|
|
694 if (r->header_in->pos == r->header_in->end) {
|
|
|
695
|
|
|
696 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
697
|
|
|
698 if (rv == NGX_ERROR) {
|
|
|
699 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
700 ngx_http_close_connection(c);
|
|
|
701 return;
|
|
|
702 }
|
|
|
703
|
|
|
704 if (rv == NGX_DECLINED) {
|
|
|
705 ngx_http_client_error(r, NGX_HTTP_PARSE_TOO_LONG_URI,
|
|
|
706 NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
|
707 return;
|
|
|
708 }
|
|
|
709 }
|
|
|
710 }
|
|
|
711 }
|
|
|
712
|
|
|
713
|
|
|
714 static void ngx_http_process_request_headers(ngx_event_t *rev)
|
|
|
715 {
|
|
|
716 ssize_t n;
|
|
|
717 ngx_int_t rc, rv, i;
|
|
|
718 ngx_table_elt_t *h, **cookie;
|
|
|
719 ngx_connection_t *c;
|
|
|
720 ngx_http_request_t *r;
|
|
|
721
|
|
|
722 c = rev->data;
|
|
|
723 r = c->data;
|
|
|
724
|
|
|
725 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
726 "http process request header line");
|
|
|
727
|
|
|
728 if (rev->timedout) {
|
|
|
729 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
730 return;
|
|
|
731 }
|
|
|
732
|
|
|
733 rc = NGX_AGAIN;
|
|
|
734
|
|
|
735 for ( ;; ) {
|
|
|
736
|
|
|
737 if (rc == NGX_AGAIN) {
|
|
|
738
|
|
|
739 if (r->header_in->pos == r->header_in->end) {
|
|
|
740
|
|
|
741 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
742
|
|
|
743 if (rv == NGX_ERROR) {
|
|
|
744 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
745 ngx_http_close_connection(c);
|
|
|
746 return;
|
|
|
747 }
|
|
|
748
|
|
|
749 if (rv == NGX_DECLINED) {
|
|
|
750 ngx_http_client_error(r, NGX_HTTP_PARSE_TOO_LONG_HEADER,
|
|
|
751 NGX_HTTP_BAD_REQUEST);
|
|
|
752 return;
|
|
|
753 }
|
|
|
754 }
|
|
|
755
|
|
|
756 n = ngx_http_read_request_header(r);
|
|
|
757
|
|
|
758 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
759 return;
|
|
|
760 }
|
|
|
761 }
|
|
|
762
|
|
|
763 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
764
|
|
|
765 if (rc == NGX_OK) {
|
|
|
766
|
|
|
767 /* a header line has been parsed successfully */
|
|
|
768
|
|
|
769 r->headers_n++;
|
|
|
770
|
|
|
771 if (!(h = ngx_list_push(&r->headers_in.headers))) {
|
|
|
772 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
773 ngx_http_close_connection(c);
|
|
|
774 return;
|
|
|
775 }
|
|
|
776
|
|
|
777 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
778 h->key.data = r->header_name_start;
|
|
|
779 h->key.data[h->key.len] = '\0';
|
|
|
780
|
|
|
781 h->value.len = r->header_end - r->header_start;
|
|
|
782 h->value.data = r->header_start;
|
|
|
783 h->value.data[h->value.len] = '\0';
|
|
|
784
|
|
|
785 if (h->key.len == sizeof("Cookie") - 1
|
|
|
786 && ngx_strcasecmp(h->key.data, "Cookie") == 0)
|
|
|
787 {
|
|
|
788 if (!(cookie = ngx_array_push(&r->headers_in.cookies))) {
|
|
|
789 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
790 ngx_http_close_connection(c);
|
|
|
791 return;
|
|
|
792 }
|
|
|
793
|
|
|
794 *cookie = h;
|
|
|
795
|
|
|
796 } else {
|
|
|
797
|
|
|
798 for (i = 0; ngx_http_headers_in[i].name.len != 0; i++) {
|
|
|
799 if (ngx_http_headers_in[i].name.len != h->key.len) {
|
|
|
800 continue;
|
|
|
801 }
|
|
|
802
|
|
|
803 if (ngx_strcasecmp(ngx_http_headers_in[i].name.data,
|
|
|
804 h->key.data) == 0)
|
|
|
805 {
|
|
|
806 *((ngx_table_elt_t **) ((char *) &r->headers_in
|
|
|
807 + ngx_http_headers_in[i].offset)) = h;
|
|
|
808 break;
|
|
|
809 }
|
|
|
810 }
|
|
|
811 }
|
|
|
812
|
|
|
813 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
814 "http header: \"%s: %s\"",
|
|
|
815 h->key.data, h->value.data);
|
|
|
816
|
|
|
817 continue;
|
|
|
818
|
|
|
819 } else if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
|
820
|
|
|
821 /* a whole header has been parsed successfully */
|
|
|
822
|
|
|
823 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
824 "http header done");
|
|
|
825
|
|
|
826 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
827
|
|
|
828 rc = ngx_http_process_request_header(r);
|
|
|
829
|
|
|
830 if (rc != NGX_OK) {
|
|
|
831 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
832 return;
|
|
|
833 }
|
|
|
834
|
|
|
835 if (rev->timer_set) {
|
|
|
836 ngx_del_timer(rev);
|
|
|
837 }
|
|
|
838
|
|
|
839 #if (NGX_STAT_STUB)
|
|
|
840 (*ngx_stat_reading)--;
|
|
|
841 r->stat_reading = 0;
|
|
|
842 (*ngx_stat_writing)++;
|
|
|
843 r->stat_writing = 1;
|
|
|
844 #endif
|
|
|
845
|
|
|
846 rev->event_handler = ngx_http_block_read;
|
|
|
847 ngx_http_handler(r);
|
|
|
848 return;
|
|
|
849
|
|
|
850 } else if (rc != NGX_AGAIN) {
|
|
|
851
|
|
|
852 /* there was error while a header line parsing */
|
|
|
853
|
|
|
854 #if (NGX_DEBUG)
|
|
|
855 if (rc == NGX_HTTP_PARSE_INVALID_HEADER
|
|
|
856 && (rev->log->log_level & NGX_LOG_DEBUG_HTTP))
|
|
|
857 {
|
|
|
858 u_char *p;
|
|
|
859 for (p = r->header_name_start;
|
|
|
860 p < r->header_in->last - 1;
|
|
|
861 p++)
|
|
|
862 {
|
|
|
863 if (*p == LF) {
|
|
|
864 break;
|
|
|
865 }
|
|
|
866 }
|
|
|
867 *p = '\0';
|
|
|
868 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
869 "http invalid header: \"%s\"",
|
|
|
870 r->header_name_start);
|
|
|
871 }
|
|
|
872 #endif
|
|
|
873
|
|
|
874 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
875 return;
|
|
|
876 }
|
|
|
877
|
|
|
878 /* NGX_AGAIN: a header line parsing is still not complete */
|
|
|
879
|
|
|
880 }
|
|
|
881 }
|
|
|
882
|
|
|
883
|
|
|
884 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r)
|
|
|
885 {
|
|
|
886 ssize_t n;
|
|
|
887 ngx_event_t *rev;
|
|
|
888 ngx_http_core_srv_conf_t *cscf;
|
|
|
889
|
|
|
890 rev = r->connection->read;
|
|
|
891
|
|
|
892 n = r->header_in->last - r->header_in->pos;
|
|
|
893
|
|
|
894 if (n > 0) {
|
|
|
895 return n;
|
|
|
896 }
|
|
|
897
|
|
|
898 if (!rev->ready) {
|
|
|
899 return NGX_AGAIN;
|
|
|
900 }
|
|
|
901
|
|
|
902 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
903 r->header_in->end - r->header_in->last);
|
|
|
904
|
|
|
905 if (n == NGX_AGAIN) {
|
|
|
906 if (!r->header_timeout_set) {
|
|
|
907 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
908 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
909 r->header_timeout_set = 1;
|
|
|
910 }
|
|
|
911
|
|
|
912 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
913 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
914 ngx_http_close_connection(r->connection);
|
|
|
915 return NGX_ERROR;
|
|
|
916 }
|
|
|
917
|
|
|
918 return NGX_AGAIN;
|
|
|
919 }
|
|
|
920
|
|
|
921 if (n == 0) {
|
|
|
922 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
923 "client closed prematurely connection");
|
|
|
924 }
|
|
|
925
|
|
|
926 if (n == 0 || n == NGX_ERROR) {
|
|
|
927 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
928 ngx_http_close_connection(r->connection);
|
|
|
929 return NGX_ERROR;
|
|
|
930 }
|
|
|
931
|
|
|
932 r->header_in->last += n;
|
|
|
933
|
|
|
934 return n;
|
|
|
935 }
|
|
|
936
|
|
|
937
|
|
|
938 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
939 ngx_uint_t request_line)
|
|
|
940 {
|
|
|
941 u_char *old, *new;
|
|
|
942 ngx_buf_t *b;
|
|
|
943 ngx_http_connection_t *hc;
|
|
|
944 ngx_http_core_srv_conf_t *cscf;
|
|
|
945
|
|
|
946 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
947 "http alloc large header buffer");
|
|
|
948
|
|
|
949 if (request_line && r->state == 0) {
|
|
|
950
|
|
|
951 /* the client fills up the buffer with "\r\n" */
|
|
|
952
|
|
|
953 r->header_in->pos = r->header_in->start;
|
|
|
954 r->header_in->last = r->header_in->start;
|
|
|
955
|
|
|
956 return NGX_OK;
|
|
|
957 }
|
|
|
958
|
|
|
959 old = request_line ? r->request_start : r->header_name_start;
|
|
|
960
|
|
|
961 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
962
|
|
|
963 if (r->state != 0
|
|
|
964 && (size_t) (r->header_in->pos - old)
|
|
|
965 >= cscf->large_client_header_buffers.size)
|
|
|
966 {
|
|
|
967 return NGX_DECLINED;
|
|
|
968 }
|
|
|
969
|
|
|
970 hc = r->http_connection;
|
|
|
971
|
|
|
972 if (hc->nfree) {
|
|
|
973 b = hc->free[--hc->nfree];
|
|
|
974
|
|
|
975 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
976 "http large header free: " PTR_FMT " " SIZE_T_FMT,
|
|
|
977 b->pos, b->end - b->last);
|
|
|
978
|
|
|
979 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
980
|
|
|
981 if (hc->busy == NULL) {
|
|
|
982 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
983 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
984 if (hc->busy == NULL) {
|
|
|
985 return NGX_ERROR;
|
|
|
986 }
|
|
|
987 }
|
|
|
988
|
|
|
989 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
990 cscf->large_client_header_buffers.size);
|
|
|
991 if (b == NULL) {
|
|
|
992 return NGX_ERROR;
|
|
|
993 }
|
|
|
994
|
|
|
995 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
996 "http large header alloc: " PTR_FMT " " SIZE_T_FMT,
|
|
|
997 b->pos, b->end - b->last);
|
|
|
998
|
|
|
999 } else {
|
|
|
1000 return NGX_DECLINED;
|
|
|
1001 }
|
|
|
1002
|
|
|
1003 hc->busy[hc->nbusy++] = b;
|
|
|
1004
|
|
|
1005 if (r->state == 0) {
|
|
|
1006 /*
|
|
|
1007 * r->state == 0 means that a header line was parsed successfully
|
|
|
1008 * and we do not need to copy incomplete header line and
|
|
|
1009 * to relocate the parser header pointers
|
|
|
1010 */
|
|
|
1011
|
|
|
1012 r->header_in = b;
|
|
|
1013
|
|
|
1014 return NGX_OK;
|
|
|
1015 }
|
|
|
1016
|
|
|
1017 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1018 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1019
|
|
|
1020 new = b->start;
|
|
|
1021
|
|
|
1022 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1023
|
|
|
1024 b->pos = new + (r->header_in->pos - old);
|
|
|
1025 b->last = new + (r->header_in->pos - old);
|
|
|
1026
|
|
|
1027 if (request_line) {
|
|
|
1028 r->request_start = new;
|
|
|
1029
|
|
|
1030 if (r->request_end) {
|
|
|
1031 r->request_end = new + (r->request_end - old);
|
|
|
1032 }
|
|
|
1033
|
|
|
1034 r->method_end = new + (r->method_end - old);
|
|
|
1035
|
|
|
1036 r->uri_start = new + (r->uri_start - old);
|
|
|
1037 r->uri_end = new + (r->uri_end - old);
|
|
|
1038
|
|
|
1039 if (r->schema_start) {
|
|
|
1040 r->schema_start = new + (r->schema_start - old);
|
|
|
1041 r->schema_end = new + (r->schema_end - old);
|
|
|
1042 }
|
|
|
1043
|
|
|
1044 if (r->host_start) {
|
|
|
1045 r->host_start = new + (r->host_start - old);
|
|
|
1046 r->host_end = new + (r->host_end - old);
|
|
|
1047 }
|
|
|
1048
|
|
|
1049 if (r->port_start) {
|
|
|
1050 r->port_start = new + (r->port_start - old);
|
|
|
1051 r->port_end = new + (r->port_end - old);
|
|
|
1052 }
|
|
|
1053
|
|
|
1054 if (r->uri_ext) {
|
|
|
1055 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1056 }
|
|
|
1057
|
|
|
1058 if (r->args_start) {
|
|
|
1059 r->args_start = new + (r->args_start - old);
|
|
|
1060 }
|
|
|
1061
|
|
|
1062 } else {
|
|
|
1063 r->header_name_start = new;
|
|
|
1064 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1065 r->header_start = new + (r->header_start - old);
|
|
|
1066 r->header_end = new + (r->header_end - old);
|
|
|
1067 }
|
|
|
1068
|
|
|
1069 r->header_in = b;
|
|
|
1070
|
|
|
1071 return NGX_OK;
|
|
|
1072 }
|
|
|
1073
|
|
|
1074
|
|
|
1075 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r)
|
|
|
1076 {
|
|
|
1077 u_char *ua, *user_agent;
|
|
|
1078 size_t len;
|
|
|
1079 ngx_uint_t i;
|
|
|
1080 ngx_http_server_name_t *name;
|
|
|
1081 ngx_http_core_srv_conf_t *cscf;
|
|
|
1082 ngx_http_core_loc_conf_t *clcf;
|
|
|
1083
|
|
|
1084 if (r->headers_in.host) {
|
|
|
1085 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
|
1086 if (r->headers_in.host->value.data[len] == ':') {
|
|
|
1087 break;
|
|
|
1088 }
|
|
|
1089 }
|
|
|
1090 r->headers_in.host_name_len = len;
|
|
|
1091
|
|
|
1092 /* find the name based server configuration */
|
|
|
1093
|
|
|
1094 name = r->virtual_names->elts;
|
|
|
1095 for (i = 0; i < r->virtual_names->nelts; i++) {
|
|
4
|
1096
|
|
|
1097 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1098 "server name: %s", name[i].name.data);
|
|
|
1099
|
|
|
1100 if (name[i].wildcard) {
|
|
|
1101 if (r->headers_in.host_name_len <= name[i].name.len) {
|
|
|
1102 continue;
|
|
|
1103 }
|
|
|
1104
|
|
|
1105 if (ngx_rstrncasecmp(r->headers_in.host->value.data,
|
|
|
1106 name[i].name.data,
|
|
|
1107 name[i].name.len) == 0)
|
|
|
1108 {
|
|
|
1109 continue;
|
|
|
1110 }
|
|
|
1111
|
|
|
1112 } else {
|
|
|
1113 if (r->headers_in.host_name_len != name[i].name.len) {
|
|
|
1114 continue;
|
|
|
1115 }
|
|
|
1116
|
|
|
1117 if (ngx_strncasecmp(r->headers_in.host->value.data,
|
|
|
1118 name[i].name.data,
|
|
|
1119 name[i].name.len) != 0)
|
|
|
1120 {
|
|
|
1121 continue;
|
|
|
1122 }
|
|
0
|
1123 }
|
|
|
1124
|
|
4
|
1125 r->srv_conf = name[i].core_srv_conf->ctx->srv_conf;
|
|
|
1126 r->loc_conf = name[i].core_srv_conf->ctx->loc_conf;
|
|
6
|
1127
|
|
|
1128 if (name[i].wildcard) {
|
|
|
1129 r->server_name.len = r->headers_in.host_name_len;
|
|
|
1130 r->server_name.data = r->headers_in.host->value.data;
|
|
|
1131
|
|
|
1132 } else {
|
|
|
1133 r->server_name = name[i].name;
|
|
|
1134 }
|
|
4
|
1135
|
|
|
1136 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1137 r->connection->log->file = clcf->err_log->file;
|
|
|
1138
|
|
|
1139 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1140 r->connection->log->log_level = clcf->err_log->log_level;
|
|
0
|
1141 }
|
|
4
|
1142
|
|
|
1143 break;
|
|
0
|
1144 }
|
|
|
1145
|
|
|
1146 if (i == r->virtual_names->nelts) {
|
|
|
1147 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1148
|
|
|
1149 if (cscf->restrict_host_names != NGX_HTTP_RESTRICT_HOST_OFF) {
|
|
|
1150 return NGX_HTTP_PARSE_INVALID_HOST;
|
|
|
1151 }
|
|
|
1152 }
|
|
|
1153
|
|
|
1154 } else {
|
|
|
1155 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
|
1156 return NGX_HTTP_PARSE_NO_HOST_HEADER;
|
|
|
1157 }
|
|
|
1158 r->headers_in.host_name_len = 0;
|
|
|
1159 }
|
|
|
1160
|
|
|
1161 if (r->headers_in.content_length) {
|
|
|
1162 r->headers_in.content_length_n =
|
|
|
1163 ngx_atoi(r->headers_in.content_length->value.data,
|
|
|
1164 r->headers_in.content_length->value.len);
|
|
|
1165
|
|
|
1166 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
|
1167 return NGX_HTTP_PARSE_INVALID_CL_HEADER;
|
|
|
1168 }
|
|
|
1169 }
|
|
|
1170
|
|
|
1171 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n <= 0) {
|
|
|
1172 return NGX_HTTP_PARSE_POST_WO_CL_HEADER;
|
|
|
1173 }
|
|
|
1174
|
|
|
1175 if (r->plain_http) {
|
|
|
1176 return NGX_HTTP_PARSE_HTTP_TO_HTTPS;
|
|
|
1177 }
|
|
|
1178
|
|
|
1179 if (r->headers_in.connection) {
|
|
|
1180 if (r->headers_in.connection->value.len == 5
|
|
|
1181 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
|
1182 == 0)
|
|
|
1183 {
|
|
|
1184 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1185
|
|
|
1186 } else if (r->headers_in.connection->value.len == 10
|
|
|
1187 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
|
1188 "keep-alive") == 0)
|
|
|
1189 {
|
|
|
1190 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1191
|
|
|
1192 if (r->headers_in.keep_alive) {
|
|
|
1193 r->headers_in.keep_alive_n =
|
|
|
1194 ngx_atoi(r->headers_in.keep_alive->value.data,
|
|
|
1195 r->headers_in.keep_alive->value.len);
|
|
|
1196 }
|
|
|
1197 }
|
|
|
1198 }
|
|
|
1199
|
|
|
1200 if (r->headers_in.user_agent) {
|
|
|
1201
|
|
|
1202 /*
|
|
|
1203 * check some widespread browsers while the headers are still
|
|
|
1204 * in CPU cache
|
|
|
1205 */
|
|
|
1206
|
|
|
1207 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1208
|
|
|
1209 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1210
|
|
|
1211 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1212
|
|
|
1213 r->headers_in.msie = 1;
|
|
|
1214
|
|
|
1215 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1216 r->headers_in.msie4 = 1;
|
|
|
1217 }
|
|
|
1218
|
|
|
1219 #if 0
|
|
|
1220 /* MSIE ignores the SSL "close notify" alert */
|
|
|
1221
|
|
|
1222 ngx_ssl_set_nosendshut(r->connection->ssl);
|
|
|
1223 #endif
|
|
|
1224 }
|
|
|
1225
|
|
|
1226 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1227 r->headers_in.opera = 1;
|
|
|
1228 r->headers_in.msie = 0;
|
|
|
1229 r->headers_in.msie4 = 0;
|
|
|
1230 }
|
|
|
1231
|
|
|
1232 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1233
|
|
|
1234 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1235 r->headers_in.gecko = 1;
|
|
|
1236
|
|
|
1237 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1238 r->headers_in.konqueror = 1;
|
|
|
1239 }
|
|
|
1240 }
|
|
|
1241 }
|
|
|
1242
|
|
|
1243 return NGX_OK;
|
|
|
1244 }
|
|
|
1245
|
|
|
1246
|
|
|
1247 void ngx_http_finalize_request(ngx_http_request_t *r, int rc)
|
|
|
1248 {
|
|
|
1249 ngx_http_core_loc_conf_t *clcf;
|
|
|
1250
|
|
|
1251 /* r can be already destroyed when rc == NGX_DONE */
|
|
|
1252
|
|
|
1253 if (rc == NGX_DONE || r->main) {
|
|
|
1254 return;
|
|
|
1255 }
|
|
|
1256
|
|
|
1257 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1258 "http finalize request: %d", rc);
|
|
|
1259
|
|
|
1260 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
|
|
|
1261
|
|
|
1262 if (r->connection->read->timer_set) {
|
|
|
1263 ngx_del_timer(r->connection->read);
|
|
|
1264 }
|
|
|
1265
|
|
|
1266 if (r->connection->write->timer_set) {
|
|
|
1267 ngx_del_timer(r->connection->write);
|
|
|
1268 }
|
|
|
1269
|
|
|
1270 if (rc == NGX_HTTP_CLIENT_CLOSED_REQUEST || r->closed) {
|
|
|
1271 ngx_http_close_request(r, 0);
|
|
|
1272 ngx_http_close_connection(r->connection);
|
|
|
1273 return;
|
|
|
1274 }
|
|
|
1275
|
|
|
1276 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1277
|
|
|
1278 return;
|
|
|
1279
|
|
|
1280 } else if (rc == NGX_ERROR) {
|
|
|
1281 ngx_http_close_request(r, 0);
|
|
|
1282 ngx_http_close_connection(r->connection);
|
|
|
1283 return;
|
|
|
1284
|
|
|
1285 } else if (rc == NGX_AGAIN) {
|
|
|
1286 ngx_http_set_write_handler(r);
|
|
|
1287 return;
|
|
|
1288 }
|
|
|
1289
|
|
|
1290 if (r->connection->read->timer_set) {
|
|
|
1291 ngx_del_timer(r->connection->read);
|
|
|
1292 }
|
|
|
1293
|
|
|
1294 if (r->connection->write->timer_set) {
|
|
|
1295 r->connection->write->delayed = 0;
|
|
|
1296 ngx_del_timer(r->connection->write);
|
|
|
1297 }
|
|
|
1298
|
|
|
1299 if (r->connection->read->pending_eof) {
|
|
|
1300 #if (NGX_KQUEUE)
|
|
|
1301 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log,
|
|
|
1302 r->connection->read->kq_errno,
|
|
|
1303 "kevent() reported about an closed connection");
|
|
|
1304 #endif
|
|
|
1305 ngx_http_close_request(r, 0);
|
|
|
1306 ngx_http_close_connection(r->connection);
|
|
|
1307 return;
|
|
|
1308 }
|
|
|
1309
|
|
|
1310 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1311
|
|
|
1312 if (!ngx_terminate
|
|
|
1313 && !ngx_exiting
|
|
|
1314 && r->keepalive != 0
|
|
|
1315 && clcf->keepalive_timeout > 0)
|
|
|
1316 {
|
|
|
1317 ngx_http_set_keepalive(r);
|
|
|
1318 return;
|
|
|
1319
|
|
|
1320 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1321 ngx_http_set_lingering_close(r);
|
|
|
1322 return;
|
|
|
1323 }
|
|
|
1324
|
|
|
1325 ngx_http_close_request(r, 0);
|
|
|
1326 ngx_http_close_connection(r->connection);
|
|
|
1327 }
|
|
|
1328
|
|
|
1329
|
|
|
1330 static void ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
|
1331 {
|
|
|
1332 ngx_event_t *wev;
|
|
|
1333 ngx_http_core_loc_conf_t *clcf;
|
|
|
1334
|
|
|
1335 wev = r->connection->write;
|
|
|
1336 wev->event_handler = ngx_http_writer;
|
|
|
1337
|
|
|
1338 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1339
|
|
|
1340 if (wev->ready && wev->delayed) {
|
|
|
1341 return;
|
|
|
1342 }
|
|
|
1343
|
|
|
1344 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1345 ngx_http_core_module);
|
|
|
1346 if (!wev->delayed) {
|
|
|
1347 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1348 }
|
|
|
1349
|
|
2
|
1350 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1351 ngx_http_close_request(r, 0);
|
|
|
1352 ngx_http_close_connection(r->connection);
|
|
|
1353 }
|
|
|
1354
|
|
|
1355 return;
|
|
|
1356 }
|
|
|
1357
|
|
|
1358
|
|
|
1359 void ngx_http_writer(ngx_event_t *wev)
|
|
|
1360 {
|
|
|
1361 int rc;
|
|
|
1362 ngx_connection_t *c;
|
|
|
1363 ngx_http_request_t *r;
|
|
|
1364 ngx_http_core_loc_conf_t *clcf;
|
|
|
1365
|
|
|
1366 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http writer handler");
|
|
|
1367
|
|
|
1368 c = wev->data;
|
|
|
1369 r = c->data;
|
|
|
1370
|
|
|
1371 if (wev->timedout) {
|
|
|
1372 if (!wev->delayed) {
|
|
|
1373 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
1374 return;
|
|
|
1375 }
|
|
|
1376
|
|
|
1377 wev->timedout = 0;
|
|
|
1378 wev->delayed = 0;
|
|
|
1379
|
|
|
1380 if (!wev->ready) {
|
|
|
1381 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1382 ngx_http_core_module);
|
|
|
1383 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1384
|
|
2
|
1385 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1386 ngx_http_close_request(r, 0);
|
|
|
1387 ngx_http_close_connection(r->connection);
|
|
|
1388 }
|
|
|
1389
|
|
|
1390 return;
|
|
|
1391 }
|
|
|
1392
|
|
|
1393 } else {
|
|
|
1394 if (wev->delayed) {
|
|
|
1395 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1396 "http writer delayed");
|
|
|
1397
|
|
|
1398 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1399 ngx_http_core_module);
|
|
2
|
1400
|
|
|
1401 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1402 ngx_http_close_request(r, 0);
|
|
|
1403 ngx_http_close_connection(r->connection);
|
|
|
1404 }
|
|
|
1405
|
|
|
1406 return;
|
|
|
1407 }
|
|
|
1408 }
|
|
|
1409
|
|
|
1410 rc = ngx_http_output_filter(r, NULL);
|
|
|
1411
|
|
|
1412 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1413 "http writer output filter: %d", rc);
|
|
|
1414
|
|
|
1415 if (rc == NGX_AGAIN) {
|
|
|
1416 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1417 ngx_http_core_module);
|
|
|
1418 if (!wev->ready && !wev->delayed) {
|
|
|
1419 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1420 }
|
|
|
1421
|
|
2
|
1422 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1423 ngx_http_close_request(r, 0);
|
|
|
1424 ngx_http_close_connection(r->connection);
|
|
|
1425 }
|
|
|
1426
|
|
|
1427 return;
|
|
|
1428 }
|
|
|
1429
|
|
|
1430 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http writer done");
|
|
|
1431
|
|
|
1432 ngx_http_finalize_request(r, rc);
|
|
|
1433 }
|
|
|
1434
|
|
|
1435
|
|
|
1436 static void ngx_http_block_read(ngx_event_t *rev)
|
|
|
1437 {
|
|
|
1438 ngx_connection_t *c;
|
|
|
1439 ngx_http_request_t *r;
|
|
|
1440
|
|
|
1441 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http read blocked");
|
|
|
1442
|
|
|
1443 /* aio does not call this handler */
|
|
|
1444
|
|
|
1445 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
|
|
|
1446 if (ngx_del_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
1447 c = rev->data;
|
|
|
1448 r = c->data;
|
|
|
1449 ngx_http_close_request(r, 0);
|
|
|
1450 ngx_http_close_connection(c);
|
|
|
1451 }
|
|
|
1452 }
|
|
|
1453 }
|
|
|
1454
|
|
|
1455
|
|
|
1456 ngx_int_t ngx_http_discard_body(ngx_http_request_t *r)
|
|
|
1457 {
|
|
|
1458 ssize_t size;
|
|
|
1459 ngx_event_t *rev;
|
|
|
1460
|
|
|
1461 rev = r->connection->read;
|
|
|
1462
|
|
|
1463 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
|
1464
|
|
|
1465 if (rev->timer_set) {
|
|
|
1466 ngx_del_timer(rev);
|
|
|
1467 }
|
|
|
1468
|
|
|
1469 if (r->headers_in.content_length_n <= 0) {
|
|
|
1470 return NGX_OK;
|
|
|
1471 }
|
|
|
1472
|
|
|
1473 size = r->header_in->last - r->header_in->pos;
|
|
|
1474
|
|
|
1475 if (size) {
|
|
|
1476 if (r->headers_in.content_length_n > size) {
|
|
|
1477 r->headers_in.content_length_n -= size;
|
|
|
1478
|
|
|
1479 } else {
|
|
|
1480 r->header_in->pos += r->headers_in.content_length_n;
|
|
|
1481 r->headers_in.content_length_n = 0;
|
|
|
1482 return NGX_OK;
|
|
|
1483 }
|
|
|
1484 }
|
|
|
1485
|
|
|
1486 rev->event_handler = ngx_http_read_discarded_body_event;
|
|
|
1487
|
|
|
1488 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1489 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1490 }
|
|
|
1491
|
|
|
1492 return ngx_http_read_discarded_body(r);
|
|
|
1493 }
|
|
|
1494
|
|
|
1495
|
|
|
1496 static void ngx_http_read_discarded_body_event(ngx_event_t *rev)
|
|
|
1497 {
|
|
|
1498 ngx_int_t rc;
|
|
|
1499 ngx_connection_t *c;
|
|
|
1500 ngx_http_request_t *r;
|
|
|
1501
|
|
|
1502 c = rev->data;
|
|
|
1503 r = c->data;
|
|
|
1504
|
|
|
1505 rc = ngx_http_read_discarded_body(r);
|
|
|
1506
|
|
|
1507 if (rc == NGX_AGAIN) {
|
|
|
1508 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1509 ngx_http_close_request(r, rc);
|
|
|
1510 ngx_http_close_connection(c);
|
|
|
1511 return;
|
|
|
1512 }
|
|
|
1513 }
|
|
|
1514
|
|
|
1515 if (rc != NGX_OK) {
|
|
|
1516 ngx_http_close_request(r, rc);
|
|
|
1517 ngx_http_close_connection(c);
|
|
|
1518 }
|
|
|
1519 }
|
|
|
1520
|
|
|
1521
|
|
|
1522 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r)
|
|
|
1523 {
|
|
|
1524 ssize_t size, n;
|
|
|
1525 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
|
1526
|
|
|
1527 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1528 "http read discarded body");
|
|
|
1529
|
|
|
1530 if (r->headers_in.content_length_n == 0) {
|
|
|
1531 return NGX_OK;
|
|
|
1532 }
|
|
|
1533
|
|
|
1534
|
|
|
1535 size = r->headers_in.content_length_n;
|
|
|
1536
|
|
|
1537 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
|
1538 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
|
1539 }
|
|
|
1540
|
|
|
1541 n = r->connection->recv(r->connection, buffer, size);
|
|
|
1542
|
|
|
1543 if (n == NGX_ERROR) {
|
|
|
1544
|
|
|
1545 r->closed = 1;
|
|
|
1546
|
|
|
1547 /*
|
|
|
1548 * if a client request body is discarded then we already set
|
|
|
1549 * some HTTP response code for client and we can ignore the error
|
|
|
1550 */
|
|
|
1551
|
|
|
1552 return NGX_OK;
|
|
|
1553 }
|
|
|
1554
|
|
|
1555 if (n == NGX_AGAIN) {
|
|
|
1556 return NGX_AGAIN;
|
|
|
1557 }
|
|
|
1558
|
|
|
1559 r->headers_in.content_length_n -= n;
|
|
|
1560
|
|
|
1561 return NGX_OK;
|
|
|
1562 }
|
|
|
1563
|
|
|
1564
|
|
|
1565 static void ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
|
1566 {
|
|
2
|
1567 int tcp_nodelay;
|
|
0
|
1568 ngx_int_t i;
|
|
|
1569 ngx_buf_t *b, *f;
|
|
|
1570 ngx_event_t *rev, *wev;
|
|
|
1571 ngx_connection_t *c;
|
|
|
1572 ngx_http_connection_t *hc;
|
|
|
1573 ngx_http_log_ctx_t *ctx;
|
|
|
1574 ngx_http_core_srv_conf_t *cscf;
|
|
|
1575 ngx_http_core_loc_conf_t *clcf;
|
|
|
1576
|
|
|
1577 c = r->connection;
|
|
|
1578 rev = c->read;
|
|
|
1579
|
|
|
1580 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1581
|
|
|
1582 ctx = (ngx_http_log_ctx_t *) c->log->data;
|
|
|
1583 ctx->action = "closing request";
|
|
|
1584
|
|
|
1585 hc = r->http_connection;
|
|
|
1586 b = r->header_in;
|
|
|
1587
|
|
|
1588 if (b->pos < b->last) {
|
|
|
1589
|
|
|
1590 /* the pipelined request */
|
|
|
1591
|
|
|
1592 if (b != c->buffer) {
|
|
|
1593
|
|
4
|
1594 /*
|
|
|
1595 * If the large header buffers were allocated while the previous
|
|
|
1596 * request processing then we do not use c->buffer for
|
|
|
1597 * the pipelined request (see ngx_http_init_request()).
|
|
|
1598 *
|
|
|
1599 * Now we would move the large header buffers to the free list.
|
|
|
1600 */
|
|
0
|
1601
|
|
|
1602 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1603
|
|
|
1604 if (hc->free == NULL) {
|
|
|
1605 hc->free = ngx_palloc(c->pool,
|
|
|
1606 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1607
|
|
|
1608 if (hc->free == NULL) {
|
|
|
1609 ngx_http_close_connection(c);
|
|
|
1610 return;
|
|
|
1611 }
|
|
|
1612 }
|
|
|
1613
|
|
|
1614 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1615 f = hc->busy[i];
|
|
|
1616 hc->free[hc->nfree++] = f;
|
|
|
1617 f->pos = f->start;
|
|
|
1618 f->last = f->start;
|
|
|
1619 }
|
|
|
1620
|
|
|
1621 hc->busy[0] = b;
|
|
|
1622 hc->nbusy = 1;
|
|
|
1623 }
|
|
|
1624 }
|
|
|
1625
|
|
|
1626 ngx_http_close_request(r, 0);
|
|
|
1627 c->data = hc;
|
|
|
1628
|
|
|
1629 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1630 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1631
|
|
|
1632 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1633 ngx_http_close_connection(c);
|
|
|
1634 return;
|
|
|
1635 }
|
|
|
1636
|
|
|
1637 wev = c->write;
|
|
|
1638 wev->event_handler = ngx_http_empty_handler;
|
|
|
1639
|
|
|
1640 if (b->pos < b->last) {
|
|
|
1641
|
|
|
1642 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1643
|
|
|
1644 hc->pipeline = 1;
|
|
|
1645 ctx->action = "reading client pipelined request line";
|
|
|
1646 ngx_http_init_request(rev);
|
|
|
1647 return;
|
|
|
1648 }
|
|
|
1649
|
|
|
1650 hc->pipeline = 0;
|
|
|
1651
|
|
4
|
1652 /*
|
|
|
1653 * To keep a memory footprint as small as possible for an idle
|
|
|
1654 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1655 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1656 * The large header buffers are always allocated outside the c->pool and
|
|
|
1657 * are freed too.
|
|
|
1658 */
|
|
|
1659
|
|
0
|
1660 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1661 hc->request = NULL;
|
|
|
1662 }
|
|
|
1663
|
|
|
1664 b = c->buffer;
|
|
|
1665
|
|
|
1666 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1667
|
|
|
1668 /*
|
|
|
1669 * the special note for ngx_http_keepalive_handler() that
|
|
|
1670 * c->buffer's memory was freed
|
|
|
1671 */
|
|
|
1672
|
|
0
|
1673 b->pos = NULL;
|
|
|
1674
|
|
|
1675 } else {
|
|
|
1676 b->pos = b->start;
|
|
|
1677 b->last = b->start;
|
|
|
1678 }
|
|
|
1679
|
|
|
1680 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: " PTR_FMT " %d",
|
|
|
1681 hc->free, hc->nfree);
|
|
|
1682
|
|
|
1683 if (hc->free) {
|
|
|
1684 for (i = 0; i < hc->nfree; i++) {
|
|
|
1685 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1686 hc->free[i] = NULL;
|
|
|
1687 }
|
|
|
1688
|
|
|
1689 hc->nfree = 0;
|
|
|
1690 }
|
|
|
1691
|
|
|
1692 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: " PTR_FMT " %d",
|
|
|
1693 hc->busy, hc->nbusy);
|
|
|
1694
|
|
|
1695 if (hc->busy) {
|
|
|
1696 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1697 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1698 hc->busy[i] = NULL;
|
|
|
1699 }
|
|
|
1700
|
|
|
1701 hc->nbusy = 0;
|
|
|
1702 }
|
|
|
1703
|
|
|
1704 rev->event_handler = ngx_http_keepalive_handler;
|
|
|
1705
|
|
|
1706 if (wev->active) {
|
|
4
|
1707 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1708 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
1709 == NGX_ERROR)
|
|
|
1710 {
|
|
|
1711 ngx_http_close_connection(c);
|
|
|
1712 return;
|
|
|
1713 }
|
|
|
1714
|
|
|
1715 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
1716 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1717 ngx_http_close_connection(c);
|
|
|
1718 return;
|
|
|
1719 }
|
|
|
1720 }
|
|
|
1721 }
|
|
|
1722
|
|
|
1723 ctx->action = "keepalive";
|
|
|
1724
|
|
|
1725 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
|
1726 if (ngx_tcp_push(c->fd) == NGX_ERROR) {
|
|
|
1727 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
1728 ngx_http_close_connection(c);
|
|
|
1729 return;
|
|
|
1730 }
|
|
2
|
1731
|
|
0
|
1732 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
2
|
1733
|
|
|
1734 } else {
|
|
|
1735 if (clcf->tcp_nodelay && !c->tcp_nodelay) {
|
|
|
1736 tcp_nodelay = 1;
|
|
|
1737
|
|
|
1738 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1739
|
|
|
1740 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
1741 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
1742 {
|
|
|
1743 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1744 "setsockopt(TCP_NODELAY) failed");
|
|
|
1745 ngx_http_close_connection(c);
|
|
|
1746 return;
|
|
|
1747 }
|
|
|
1748
|
|
|
1749 c->tcp_nodelay = 1;
|
|
|
1750 }
|
|
0
|
1751 }
|
|
|
1752
|
|
|
1753 #if 0
|
|
4
|
1754 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
1755 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
1756 #endif
|
|
|
1757
|
|
|
1758 if (rev->ready) {
|
|
|
1759 ngx_http_keepalive_handler(rev);
|
|
|
1760 }
|
|
|
1761 }
|
|
|
1762
|
|
|
1763
|
|
|
1764 static void ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
|
1765 {
|
|
|
1766 size_t size;
|
|
|
1767 ssize_t n;
|
|
|
1768 ngx_buf_t *b;
|
|
|
1769 ngx_connection_t *c;
|
|
|
1770 ngx_http_log_ctx_t *ctx;
|
|
|
1771 ngx_http_connection_t *hc;
|
|
|
1772
|
|
|
1773 c = rev->data;
|
|
|
1774
|
|
|
1775 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
1776
|
|
|
1777 if (rev->timedout) {
|
|
|
1778 ngx_http_close_connection(c);
|
|
|
1779 return;
|
|
|
1780 }
|
|
|
1781
|
|
|
1782 ctx = (ngx_http_log_ctx_t *) rev->log->data;
|
|
|
1783
|
|
|
1784 #if (HAVE_KQUEUE)
|
|
|
1785
|
|
4
|
1786 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1787 if (rev->pending_eof) {
|
|
|
1788 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
|
1789 "kevent() reported that client %s closed "
|
|
|
1790 "keepalive connection", ctx->client);
|
|
|
1791 ngx_http_close_connection(c);
|
|
|
1792 return;
|
|
|
1793 }
|
|
|
1794 }
|
|
|
1795
|
|
|
1796 #endif
|
|
|
1797
|
|
|
1798 hc = c->data;
|
|
|
1799 b = c->buffer;
|
|
|
1800 size = b->end - b->start;
|
|
|
1801
|
|
|
1802 if (b->pos == NULL) {
|
|
4
|
1803
|
|
|
1804 /*
|
|
|
1805 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
1806 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
1807 * to keep the buffer size.
|
|
|
1808 */
|
|
|
1809
|
|
0
|
1810 if (!(b->pos = ngx_palloc(c->pool, size))) {
|
|
|
1811 ngx_http_close_connection(c);
|
|
|
1812 return;
|
|
|
1813 }
|
|
|
1814
|
|
|
1815 b->start = b->pos;
|
|
|
1816 b->last = b->pos;
|
|
|
1817 b->end = b->pos + size;
|
|
|
1818 }
|
|
|
1819
|
|
|
1820 /*
|
|
|
1821 * MSIE closes a keepalive connection with RST flag
|
|
|
1822 * so we ignore ECONNRESET here.
|
|
|
1823 */
|
|
|
1824
|
|
|
1825 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
1826 ngx_set_socket_errno(0);
|
|
|
1827
|
|
|
1828 n = c->recv(c, b->last, size);
|
|
|
1829 c->log_error = NGX_ERROR_INFO;
|
|
|
1830
|
|
|
1831 if (n == NGX_AGAIN) {
|
|
|
1832 return;
|
|
|
1833 }
|
|
|
1834
|
|
|
1835 if (n == NGX_ERROR) {
|
|
|
1836 ngx_http_close_connection(c);
|
|
|
1837 return;
|
|
|
1838 }
|
|
|
1839
|
|
|
1840 rev->log->handler = NULL;
|
|
|
1841
|
|
|
1842 if (n == 0) {
|
|
|
1843 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
|
1844 "client %s closed keepalive connection", ctx->client);
|
|
|
1845 ngx_http_close_connection(c);
|
|
|
1846 return;
|
|
|
1847 }
|
|
|
1848
|
|
|
1849 b->last += n;
|
|
|
1850 rev->log->handler = ngx_http_log_error;
|
|
|
1851 ctx->action = "reading client request line";
|
|
|
1852
|
|
|
1853 ngx_http_init_request(rev);
|
|
|
1854 }
|
|
|
1855
|
|
|
1856
|
|
|
1857 static void ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
|
1858 {
|
|
|
1859 ngx_event_t *rev, *wev;
|
|
|
1860 ngx_connection_t *c;
|
|
|
1861 ngx_http_core_loc_conf_t *clcf;
|
|
|
1862
|
|
|
1863 c = r->connection;
|
|
|
1864
|
|
|
1865 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1866
|
|
|
1867 rev = c->read;
|
|
|
1868 rev->event_handler = ngx_http_lingering_close_handler;
|
|
|
1869
|
|
|
1870 r->lingering_time = ngx_time() + clcf->lingering_time / 1000;
|
|
|
1871 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
1872
|
|
|
1873 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1874 ngx_http_close_request(r, 0);
|
|
|
1875 ngx_http_close_connection(c);
|
|
|
1876 return;
|
|
|
1877 }
|
|
|
1878
|
|
|
1879 wev = c->write;
|
|
|
1880 wev->event_handler = ngx_http_empty_handler;
|
|
|
1881
|
|
|
1882 if (wev->active) {
|
|
4
|
1883 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1884 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
1885 == NGX_ERROR)
|
|
|
1886 {
|
|
|
1887 ngx_http_close_connection(c);
|
|
|
1888 return;
|
|
|
1889 }
|
|
|
1890
|
|
|
1891 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
1892 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1893 ngx_http_close_connection(c);
|
|
|
1894 return;
|
|
|
1895 }
|
|
|
1896 }
|
|
|
1897 }
|
|
|
1898
|
|
|
1899 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
1900 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1901 ngx_shutdown_socket_n " failed");
|
|
|
1902 ngx_http_close_request(r, 0);
|
|
|
1903 ngx_http_close_connection(c);
|
|
|
1904 return;
|
|
|
1905 }
|
|
|
1906
|
|
|
1907 if (rev->ready) {
|
|
|
1908 ngx_http_lingering_close_handler(rev);
|
|
|
1909 }
|
|
|
1910 }
|
|
|
1911
|
|
|
1912
|
|
|
1913 static void ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
|
1914 {
|
|
|
1915 ssize_t n;
|
|
|
1916 ngx_msec_t timer;
|
|
|
1917 ngx_connection_t *c;
|
|
|
1918 ngx_http_request_t *r;
|
|
|
1919 ngx_http_core_loc_conf_t *clcf;
|
|
|
1920 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
1921
|
|
|
1922 c = rev->data;
|
|
|
1923 r = c->data;
|
|
|
1924
|
|
|
1925 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1926 "http lingering close handler");
|
|
|
1927
|
|
|
1928 if (rev->timedout) {
|
|
|
1929 ngx_http_close_request(r, 0);
|
|
|
1930 ngx_http_close_connection(c);
|
|
|
1931 return;
|
|
|
1932 }
|
|
|
1933
|
|
|
1934 timer = r->lingering_time - ngx_time();
|
|
|
1935 if (timer <= 0) {
|
|
|
1936 ngx_http_close_request(r, 0);
|
|
|
1937 ngx_http_close_connection(c);
|
|
|
1938 return;
|
|
|
1939 }
|
|
|
1940
|
|
|
1941 do {
|
|
|
1942 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
1943
|
|
|
1944 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
1945
|
|
|
1946 if (n == NGX_ERROR || n == 0) {
|
|
|
1947 ngx_http_close_request(r, 0);
|
|
|
1948 ngx_http_close_connection(c);
|
|
|
1949 return;
|
|
|
1950 }
|
|
|
1951
|
|
|
1952 } while (rev->ready);
|
|
|
1953
|
|
|
1954 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1955
|
|
|
1956 timer *= 1000;
|
|
|
1957
|
|
|
1958 if (timer > clcf->lingering_timeout) {
|
|
|
1959 timer = clcf->lingering_timeout;
|
|
|
1960 }
|
|
|
1961
|
|
|
1962 ngx_add_timer(rev, timer);
|
|
|
1963
|
|
|
1964 return;
|
|
|
1965 }
|
|
|
1966
|
|
|
1967
|
|
|
1968 void ngx_http_empty_handler(ngx_event_t *wev)
|
|
|
1969 {
|
|
|
1970 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
1971
|
|
|
1972 return;
|
|
|
1973 }
|
|
|
1974
|
|
|
1975
|
|
|
1976 ngx_int_t ngx_http_send_last(ngx_http_request_t *r)
|
|
|
1977 {
|
|
|
1978 ngx_buf_t *b;
|
|
|
1979 ngx_chain_t out;
|
|
|
1980
|
|
|
1981 if (!(b = ngx_calloc_buf(r->pool))) {
|
|
|
1982 return NGX_ERROR;
|
|
|
1983 }
|
|
|
1984
|
|
|
1985 b->last_buf = 1;
|
|
|
1986 out.buf = b;
|
|
|
1987 out.next = NULL;
|
|
|
1988
|
|
|
1989 return ngx_http_output_filter(r, &out);
|
|
|
1990 }
|
|
|
1991
|
|
|
1992
|
|
|
1993 void ngx_http_close_request(ngx_http_request_t *r, int error)
|
|
|
1994 {
|
|
|
1995 ngx_uint_t i;
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|
|
1996 ngx_log_t *log;
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|
|
1997 ngx_http_log_ctx_t *ctx;
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|
|
1998 ngx_http_cleanup_t *cleanup;
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|
|
1999 ngx_http_core_loc_conf_t *clcf;
|
|
|
2000 struct linger l;
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|
2001
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|
2002 log = r->connection->log;
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|
2003
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|
2004 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
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|
|
2005
|
|
|
2006 if (r->pool == NULL) {
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|
2007 ngx_log_error(NGX_LOG_ALERT, log, 0,
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|
2008 "http request already closed");
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|
2009 return;
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|
|
2010 }
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|
|
2011
|
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|
2012 #if (NGX_STAT_STUB)
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|
2013 if (r->stat_reading) {
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|
2014 (*ngx_stat_reading)--;
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|
2015 }
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|
2016
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|
|
2017 if (r->stat_writing) {
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|
2018 (*ngx_stat_writing)--;
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|
2019 }
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|
|
2020 #endif
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2021
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|
2022 if (error && r->headers_out.status == 0) {
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|
2023 r->headers_out.status = error;
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|
|
2024 }
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|
2025
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|
2026 ngx_http_log_handler(r);
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2027
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2028 cleanup = r->cleanup.elts;
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|
2029 for (i = 0; i < r->cleanup.nelts; i++) {
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2030 if (!cleanup[i].valid) {
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|
2031 continue;
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|
2032 }
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2033
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|
|
2034 #if (NGX_HTTP_CACHE)
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2035
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2036 if (cleanup[i].cache) {
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|
2037 ngx_http_cache_unlock(cleanup[i].data.cache.hash,
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|
|
2038 cleanup[i].data.cache.cache, log);
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|
2039 continue;
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|
|
2040 }
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2041
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|
|
2042 #endif
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2043
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|
2044 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http cleanup fd: %d",
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|
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2045 cleanup[i].data.file.fd);
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2046
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2047 if (ngx_close_file(cleanup[i].data.file.fd) == NGX_FILE_ERROR) {
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2048 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
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|
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2049 ngx_close_file_n " \"%s\" failed",
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|
|
2050 cleanup[i].data.file.name);
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|
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2051 }
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|
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2052 }
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2053
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2054 /* STUB */
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2055 if (r->file.fd != NGX_INVALID_FILE) {
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2056 if (ngx_close_file(r->file.fd) == NGX_FILE_ERROR) {
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2057 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
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|
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2058 ngx_close_file_n " \"%s\" failed", r->file.name.data);
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|
|
2059 }
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|
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2060 }
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2061
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2062 if (r->request_body
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2063 && r->request_body->temp_file
|
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2064 && r->request_body->temp_file->file.fd != NGX_INVALID_FILE)
|
|
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2065 {
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|
2066 if (ngx_close_file(r->request_body->temp_file->file.fd)
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|
|
2067 == NGX_FILE_ERROR)
|
|
|
2068 {
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|
2069 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
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|
|
2070 ngx_close_file_n " deleted file \"%s\" failed",
|
|
|
2071 r->request_body->temp_file->file.name.data);
|
|
|
2072 }
|
|
|
2073 }
|
|
|
2074
|
|
|
2075 if (r->connection->timedout) {
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|
|
2076 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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|
|
2077
|
|
|
2078 if (clcf->reset_timedout_connection) {
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|
|
2079 l.l_onoff = 1;
|
|
|
2080 l.l_linger = 0;
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|
|
2081
|
|
|
2082 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
|
2083 (const void *) &l, sizeof(struct linger)) == -1)
|
|
|
2084 {
|
|
|
2085 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2086 "setsockopt(SO_LINGER) failed");
|
|
|
2087 }
|
|
|
2088 }
|
|
|
2089 }
|
|
|
2090
|
|
|
2091 /* ctx->url was allocated from r->pool */
|
|
|
2092 ctx = log->data;
|
|
|
2093 ctx->url = NULL;
|
|
|
2094
|
|
|
2095 r->request_line.len = 0;
|
|
|
2096
|
|
|
2097 ngx_destroy_pool(r->pool);
|
|
|
2098
|
|
|
2099 return;
|
|
|
2100 }
|
|
|
2101
|
|
|
2102
|
|
|
2103 #if (NGX_HTTP_SSL)
|
|
|
2104
|
|
|
2105 void ngx_ssl_close_handler(ngx_event_t *ev)
|
|
|
2106 {
|
|
|
2107 ngx_connection_t *c;
|
|
|
2108
|
|
|
2109 c = ev->data;
|
|
|
2110
|
|
|
2111 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0, "http ssl close handler");
|
|
|
2112
|
|
|
2113 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2114 return;
|
|
|
2115 }
|
|
|
2116
|
|
|
2117 ngx_http_close_connection(c);
|
|
|
2118 }
|
|
|
2119
|
|
|
2120 #endif
|
|
|
2121
|
|
|
2122
|
|
|
2123 void ngx_http_close_connection(ngx_connection_t *c)
|
|
|
2124 {
|
|
|
2125 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2126 "close http connection: %d", c->fd);
|
|
|
2127
|
|
2
|
2128 #if (NGX_OPENSSL)
|
|
|
2129
|
|
|
2130 if (c->ssl) {
|
|
|
2131 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2132 c->read->event_handler = ngx_ssl_close_handler;
|
|
|
2133 c->write->event_handler = ngx_ssl_close_handler;
|
|
|
2134 return;
|
|
|
2135 }
|
|
|
2136 }
|
|
|
2137
|
|
|
2138 #endif
|
|
|
2139
|
|
0
|
2140 #if (NGX_STAT_STUB)
|
|
|
2141 (*ngx_stat_active)--;
|
|
|
2142 #endif
|
|
|
2143
|
|
|
2144 ngx_close_connection(c);
|
|
|
2145 }
|
|
|
2146
|
|
|
2147
|
|
|
2148 static void ngx_http_client_error(ngx_http_request_t *r,
|
|
|
2149 int client_error, int error)
|
|
|
2150 {
|
|
|
2151 ngx_http_log_ctx_t *ctx;
|
|
|
2152 ngx_http_core_srv_conf_t *cscf;
|
|
|
2153
|
|
|
2154 ctx = r->connection->log->data;
|
|
|
2155
|
|
|
2156 if (error == NGX_HTTP_REQUEST_TIME_OUT) {
|
|
|
2157 ngx_log_error(NGX_LOG_INFO, r->connection->log, NGX_ETIMEDOUT,
|
|
|
2158 "client timed out");
|
|
|
2159 r->connection->timedout = 1;
|
|
|
2160 ngx_http_close_request(r, error);
|
|
|
2161 ngx_http_close_connection(r->connection);
|
|
|
2162 return;
|
|
|
2163 }
|
|
|
2164
|
|
|
2165 r->connection->log->handler = NULL;
|
|
|
2166
|
|
|
2167 if (ctx->url) {
|
|
|
2168 switch (client_error) {
|
|
|
2169
|
|
|
2170 case NGX_HTTP_PARSE_INVALID_HOST:
|
|
|
2171 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2172 client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
|
|
|
2173 ctx->client, r->headers_in.host->value.data, ctx->url);
|
|
|
2174
|
|
|
2175 error = NGX_HTTP_INVALID_HOST;
|
|
|
2176
|
|
|
2177 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
2178
|
|
|
2179 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_CLOSE) {
|
|
|
2180 ngx_http_close_request(r, error);
|
|
|
2181 ngx_http_close_connection(r->connection);
|
|
|
2182 return;
|
|
|
2183 }
|
|
|
2184
|
|
|
2185 break;
|
|
|
2186
|
|
|
2187 case NGX_HTTP_PARSE_HTTP_TO_HTTPS:
|
|
|
2188 error = NGX_HTTP_TO_HTTPS;
|
|
|
2189
|
|
|
2190 /* fall through */
|
|
|
2191
|
|
|
2192 default:
|
|
|
2193 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2194 client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
|
|
|
2195 ctx->client, ctx->url);
|
|
|
2196 }
|
|
|
2197
|
|
|
2198 } else {
|
|
|
2199 if (error == NGX_HTTP_REQUEST_URI_TOO_LARGE) {
|
|
|
2200 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
2201 r->request_line.data = r->request_start;
|
|
|
2202 }
|
|
|
2203
|
|
|
2204 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2205 client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
|
|
|
2206 ctx->client);
|
|
|
2207 }
|
|
|
2208
|
|
|
2209 r->connection->log->handler = ngx_http_log_error;
|
|
|
2210
|
|
|
2211 ngx_http_finalize_request(r, error);
|
|
|
2212 }
|
|
|
2213
|
|
|
2214
|
|
|
2215 static size_t ngx_http_log_error(void *data, char *buf, size_t len)
|
|
|
2216 {
|
|
|
2217 ngx_http_log_ctx_t *ctx = data;
|
|
|
2218
|
|
|
2219 if (ctx->action && ctx->url) {
|
|
|
2220 return ngx_snprintf(buf, len, " while %s, client: %s, URL: %s",
|
|
|
2221 ctx->action, ctx->client, ctx->url);
|
|
|
2222
|
|
|
2223 } else if (ctx->action == NULL && ctx->url) {
|
|
|
2224 return ngx_snprintf(buf, len, ", client: %s, URL: %s",
|
|
|
2225 ctx->client, ctx->url);
|
|
|
2226
|
|
|
2227 } else {
|
|
|
2228 return ngx_snprintf(buf, len, " while %s, client: %s",
|
|
|
2229 ctx->action, ctx->client);
|
|
|
2230 }
|
|
|
2231 }
|
