📄 ngx_http_special_response.c

📁 Nginx是一个高性能的HTTP和反向代理服务器
💻 C
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/* * Copyright (C) Igor Sysoev */#include <ngx_config.h>#include <ngx_core.h>#include <ngx_http.h>#include <nginx.h>static ngx_int_t ngx_http_send_error_page(ngx_http_request_t *r,    ngx_http_err_page_t *err_page);static ngx_int_t ngx_http_send_special_response(ngx_http_request_t *r,    ngx_http_core_loc_conf_t *clcf, ngx_uint_t err);static ngx_int_t ngx_http_send_refresh(ngx_http_request_t *r);static u_char ngx_http_error_full_tail[] ="<hr><center>" NGINX_VER "</center>" CRLF"</body>" CRLF"</html>" CRLF;static u_char ngx_http_error_tail[] ="<hr><center>nginx</center>" CRLF"</body>" CRLF"</html>" CRLF;static u_char ngx_http_msie_stub[] ="<!-- The padding to disable MSIE's friendly error page -->" CRLF"<!-- The padding to disable MSIE's friendly error page -->" CRLF"<!-- The padding to disable MSIE's friendly error page -->" CRLF"<!-- The padding to disable MSIE's friendly error page -->" CRLF"<!-- The padding to disable MSIE's friendly error page -->" CRLF"<!-- The padding to disable MSIE's friendly error page -->" CRLF;static u_char ngx_http_msie_refresh_head[] ="<html><head><meta http-equiv=\"Refresh\" content=\"0; URL=";static u_char ngx_http_msie_refresh_tail[] ="\"></head><body></body></html>" CRLF;static char ngx_http_error_301_page[] ="<html>" CRLF"<head><title>301 Moved Permanently</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>301 Moved Permanently</h1></center>" CRLF;static char ngx_http_error_302_page[] ="<html>" CRLF"<head><title>302 Found</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>302 Found</h1></center>" CRLF;static char ngx_http_error_400_page[] ="<html>" CRLF"<head><title>400 Bad Request</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>400 Bad Request</h1></center>" CRLF;static char ngx_http_error_401_page[] ="<html>" CRLF"<head><title>401 Authorization Required</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>401 Authorization Required</h1></center>" CRLF;static char ngx_http_error_402_page[] ="<html>" CRLF"<head><title>402 Payment Required</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>402 Payment Required</h1></center>" CRLF;static char ngx_http_error_403_page[] ="<html>" CRLF"<head><title>403 Forbidden</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>403 Forbidden</h1></center>" CRLF;static char ngx_http_error_404_page[] ="<html>" CRLF"<head><title>404 Not Found</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>404 Not Found</h1></center>" CRLF;static char ngx_http_error_405_page[] ="<html>" CRLF"<head><title>405 Not Allowed</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>405 Not Allowed</h1></center>" CRLF;static char ngx_http_error_406_page[] ="<html>" CRLF"<head><title>406 Not Acceptable</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>406 Not Acceptable</h1></center>" CRLF;static char ngx_http_error_408_page[] ="<html>" CRLF"<head><title>408 Request Time-out</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>408 Request Time-out</h1></center>" CRLF;static char ngx_http_error_409_page[] ="<html>" CRLF"<head><title>409 Conflict</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>409 Conflict</h1></center>" CRLF;static char ngx_http_error_410_page[] ="<html>" CRLF"<head><title>410 Gone</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>410 Gone</h1></center>" CRLF;static char ngx_http_error_411_page[] ="<html>" CRLF"<head><title>411 Length Required</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>411 Length Required</h1></center>" CRLF;static char ngx_http_error_412_page[] ="<html>" CRLF"<head><title>412 Precondition Failed</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>412 Precondition Failed</h1></center>" CRLF;static char ngx_http_error_413_page[] ="<html>" CRLF"<head><title>413 Request Entity Too Large</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>413 Request Entity Too Large</h1></center>" CRLF;static char ngx_http_error_414_page[] ="<html>" CRLF"<head><title>414 Request-URI Too Large</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>414 Request-URI Too Large</h1></center>" CRLF;static char ngx_http_error_415_page[] ="<html>" CRLF"<head><title>415 Unsupported Media Type</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>415 Unsupported Media Type</h1></center>" CRLF;static char ngx_http_error_416_page[] ="<html>" CRLF"<head><title>416 Requested Range Not Satisfiable</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>416 Requested Range Not Satisfiable</h1></center>" CRLF;static char ngx_http_error_495_page[] ="<html>" CRLF"<head><title>400 The SSL certificate error</title></head>"CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>400 Bad Request</h1></center>" CRLF"<center>The SSL certificate error</center>" CRLF;static char ngx_http_error_496_page[] ="<html>" CRLF"<head><title>400 No required SSL certificate was sent</title></head>"CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>400 Bad Request</h1></center>" CRLF"<center>No required SSL certificate was sent</center>" CRLF;static char ngx_http_error_497_page[] ="<html>" CRLF"<head><title>400 The plain HTTP request was sent to HTTPS port</title></head>"CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>400 Bad Request</h1></center>" CRLF"<center>The plain HTTP request was sent to HTTPS port</center>" CRLF;static char ngx_http_error_500_page[] ="<html>" CRLF"<head><title>500 Internal Server Error</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>500 Internal Server Error</h1></center>" CRLF;static char ngx_http_error_501_page[] ="<html>" CRLF"<head><title>501 Method Not Implemented</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>501 Method Not Implemented</h1></center>" CRLF;static char ngx_http_error_502_page[] ="<html>" CRLF"<head><title>502 Bad Gateway</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>502 Bad Gateway</h1></center>" CRLF;static char ngx_http_error_503_page[] ="<html>" CRLF"<head><title>503 Service Temporarily Unavailable</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>503 Service Temporarily Unavailable</h1></center>" CRLF;static char ngx_http_error_504_page[] ="<html>" CRLF"<head><title>504 Gateway Time-out</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>504 Gateway Time-out</h1></center>" CRLF;static char ngx_http_error_507_page[] ="<html>" CRLF"<head><title>507 Insufficient Storage</title></head>" CRLF"<body bgcolor=\"white\">" CRLF"<center><h1>507 Insufficient Storage</h1></center>" CRLF;static ngx_str_t ngx_http_error_pages[] = {    ngx_null_string,                     /* 201, 204 */#define NGX_HTTP_LEVEL_200  1    /* ngx_null_string, */               /* 300 */    ngx_string(ngx_http_error_301_page),    ngx_string(ngx_http_error_302_page),    ngx_null_string,                     /* 303 */#define NGX_HTTP_LEVEL_300  3    ngx_string(ngx_http_error_400_page),    ngx_string(ngx_http_error_401_page),    ngx_string(ngx_http_error_402_page),    ngx_string(ngx_http_error_403_page),    ngx_string(ngx_http_error_404_page),    ngx_string(ngx_http_error_405_page),    ngx_string(ngx_http_error_406_page),    ngx_null_string,                     /* 407 */    ngx_string(ngx_http_error_408_page),    ngx_string(ngx_http_error_409_page),    ngx_string(ngx_http_error_410_page),    ngx_string(ngx_http_error_411_page),    ngx_string(ngx_http_error_412_page),    ngx_string(ngx_http_error_413_page),    ngx_string(ngx_http_error_414_page),    ngx_string(ngx_http_error_415_page),    ngx_string(ngx_http_error_416_page),#define NGX_HTTP_LEVEL_400  17    ngx_string(ngx_http_error_495_page), /* 495, https certificate error */    ngx_string(ngx_http_error_496_page), /* 496, https no certificate */    ngx_string(ngx_http_error_497_page), /* 497, http to https */    ngx_string(ngx_http_error_404_page), /* 498, canceled */    ngx_null_string,                     /* 499, client has closed connection */    ngx_string(ngx_http_error_500_page),    ngx_string(ngx_http_error_501_page),    ngx_string(ngx_http_error_502_page),    ngx_string(ngx_http_error_503_page),    ngx_string(ngx_http_error_504_page),    ngx_null_string,                     /* 505 */    ngx_null_string,                     /* 506 */    ngx_string(ngx_http_error_507_page)};static ngx_str_t  ngx_http_get_name = { 3, (u_char *) "GET " };ngx_int_tngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error){    ngx_int_t                  rc;    ngx_uint_t                 i, err;    ngx_http_err_page_t       *err_page;    ngx_http_core_loc_conf_t  *clcf;    ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,                   "http special response: %d, \"%V\"", error, &r->uri);    rc = ngx_http_discard_request_body(r);    if (rc == NGX_HTTP_INTERNAL_SERVER_ERROR) {        error = NGX_HTTP_INTERNAL_SERVER_ERROR;    }    r->err_status = error;    if (r->keepalive != 0) {        switch (error) {            case NGX_HTTP_BAD_REQUEST:            case NGX_HTTP_REQUEST_ENTITY_TOO_LARGE:            case NGX_HTTP_REQUEST_URI_TOO_LARGE:            case NGX_HTTP_TO_HTTPS:            case NGX_HTTPS_CERT_ERROR:            case NGX_HTTPS_NO_CERT:            case NGX_HTTP_INTERNAL_SERVER_ERROR:                r->keepalive = 0;        }    }    if (r->lingering_close == 1) {        switch (error) {
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