mirror of
https://github.com/nginx/nginx.git
synced 2024-12-15 21:39:00 +08:00
c2807ecf45
*) Feature: the "restrict_host_names" directive was canceled.
*) Feature: the --with-cpu-opt=ppc64 configuration parameter.
*) Bugfix: on some condition the proxied connection with a client was
terminated prematurely.
Thanks to Vladimir Shutoff.
*) Bugfix: the "X-Accel-Limit-Rate" header line was not taken into
account if the request was redirected using the "X-Accel-Redirect"
header line.
*) Bugfix: the "post_action" directive ran only after a successful
completion of a request.
*) Bugfix: the proxied response body generated by the "post_action"
directive was transferred to a client.
455 lines
12 KiB
C
455 lines
12 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_http.h>
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#include <nginx.h>
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static u_char error_tail[] =
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"<hr><center>" NGINX_VER "</center>" CRLF
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"</body>" CRLF
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"</html>" CRLF
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;
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static u_char ngx_http_msie_stub[] =
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"<!-- The padding to disable MSIE's friendly error page -->" CRLF
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"<!-- The padding to disable MSIE's friendly error page -->" CRLF
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"<!-- The padding to disable MSIE's friendly error page -->" CRLF
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"<!-- The padding to disable MSIE's friendly error page -->" CRLF
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"<!-- The padding to disable MSIE's friendly error page -->" CRLF
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"<!-- The padding to disable MSIE's friendly error page -->" CRLF
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;
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static char error_301_page[] =
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"<html>" CRLF
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"<head><title>301 Moved Permanently</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>301 Moved Permanently</h1></center>" CRLF
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;
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static char error_302_page[] =
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"<html>" CRLF
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"<head><title>302 Found</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>302 Found</h1></center>" CRLF
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;
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static char error_400_page[] =
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"<html>" CRLF
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"<head><title>400 Bad Request</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>400 Bad Request</h1></center>" CRLF
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;
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static char error_401_page[] =
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"<html>" CRLF
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"<head><title>401 Authorization Required</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>401 Authorization Required</h1></center>" CRLF
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;
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static char error_402_page[] =
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"<html>" CRLF
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"<head><title>402 Payment Required</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>402 Payment Required</h1></center>" CRLF
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;
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static char error_403_page[] =
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"<html>" CRLF
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"<head><title>403 Forbidden</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>403 Forbidden</h1></center>" CRLF
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;
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static char error_404_page[] =
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"<html>" CRLF
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"<head><title>404 Not Found</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>404 Not Found</h1></center>" CRLF
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;
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static char error_405_page[] =
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"<html>" CRLF
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"<head><title>405 Not Allowed</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>405 Not Allowed</h1></center>" CRLF
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;
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static char error_406_page[] =
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"<html>" CRLF
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"<head><title>406 Not Acceptable</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>406 Not Acceptable</h1></center>" CRLF
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;
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static char error_408_page[] =
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"<html>" CRLF
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"<head><title>408 Request Time-out</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>408 Request Time-out</h1></center>" CRLF
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;
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static char error_410_page[] =
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"<html>" CRLF
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"<head><title>410 Gone</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>410 Gone</h1></center>" CRLF
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;
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static char error_411_page[] =
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"<html>" CRLF
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"<head><title>411 Length Required</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>411 Length Required</h1></center>" CRLF
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;
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static char error_413_page[] =
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"<html>" CRLF
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"<head><title>413 Request Entity Too Large</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>413 Request Entity Too Large</h1></center>" CRLF
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;
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static char error_414_page[] =
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"<html>" CRLF
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"<head><title>414 Request-URI Too Large</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>414 Request-URI Too Large</h1></center>" CRLF
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;
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static char error_416_page[] =
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"<html>" CRLF
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"<head><title>416 Requested Range Not Satisfiable</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>416 Requested Range Not Satisfiable</h1></center>" CRLF
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;
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static char error_497_page[] =
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"<html>" CRLF
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"<head><title>400 The plain HTTP request was sent to HTTPS port</title></head>"
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CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>400 Bad Request</h1></center>" CRLF
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"<center>The plain HTTP request was sent to HTTPS port</center>" CRLF
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;
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static char error_500_page[] =
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"<html>" CRLF
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"<head><title>500 Internal Server Error</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>500 Internal Server Error</h1></center>" CRLF
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;
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static char error_501_page[] =
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"<html>" CRLF
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"<head><title>501 Method Not Implemented</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>501 Method Not Implemented</h1></center>" CRLF
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;
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static char error_502_page[] =
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"<html>" CRLF
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"<head><title>502 Bad Gateway</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>502 Bad Gateway</h1></center>" CRLF
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;
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static char error_503_page[] =
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"<html>" CRLF
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"<head><title>503 Service Temporarily Unavailable</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>503 Service Temporarily Unavailable</h1></center>" CRLF
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;
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static char error_504_page[] =
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"<html>" CRLF
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"<head><title>504 Gateway Time-out</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>504 Gateway Time-out</h1></center>" CRLF
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;
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static ngx_str_t error_pages[] = {
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ngx_null_string, /* 204 */
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#define NGX_HTTP_LEVEL_200 1
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/* ngx_null_string, */ /* 300 */
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ngx_string(error_301_page),
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ngx_string(error_302_page),
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ngx_null_string, /* 303 */
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#define NGX_HTTP_LEVEL_300 3
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ngx_string(error_400_page),
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ngx_string(error_401_page),
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ngx_string(error_402_page),
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ngx_string(error_403_page),
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ngx_string(error_404_page),
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ngx_string(error_405_page),
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ngx_string(error_406_page),
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ngx_null_string, /* 407 */
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ngx_string(error_408_page),
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ngx_null_string, /* 409 */
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ngx_string(error_410_page),
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ngx_string(error_411_page),
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ngx_null_string, /* 412 */
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ngx_string(error_413_page),
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ngx_string(error_414_page),
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ngx_null_string, /* 415 */
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ngx_string(error_416_page),
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#define NGX_HTTP_LEVEL_400 17
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ngx_string(error_497_page), /* 497, http to https */
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ngx_string(error_404_page), /* 498, invalid host name */
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ngx_null_string, /* 499, client had closed connection */
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ngx_string(error_500_page),
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ngx_string(error_501_page),
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ngx_string(error_502_page),
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ngx_string(error_503_page),
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ngx_string(error_504_page)
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};
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ngx_int_t
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ngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error)
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{
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ngx_int_t rc;
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ngx_uint_t i, err, msie_padding;
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ngx_buf_t *b;
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ngx_chain_t *out, *cl;
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ngx_http_err_page_t *err_page;
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ngx_http_core_loc_conf_t *clcf;
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ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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"http special response: %d, \"%V\"", error, &r->uri);
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rc = ngx_http_discard_body(r);
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if (rc == NGX_HTTP_INTERNAL_SERVER_ERROR) {
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error = NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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r->headers_out.status = error;
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if (r->keepalive != 0) {
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switch (error) {
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case NGX_HTTP_BAD_REQUEST:
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case NGX_HTTP_REQUEST_ENTITY_TOO_LARGE:
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case NGX_HTTP_REQUEST_URI_TOO_LARGE:
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case NGX_HTTP_TO_HTTPS:
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case NGX_HTTP_INTERNAL_SERVER_ERROR:
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r->keepalive = 0;
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}
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}
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if (r->lingering_close == 1) {
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switch (error) {
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case NGX_HTTP_BAD_REQUEST:
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case NGX_HTTP_TO_HTTPS:
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r->lingering_close = 0;
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}
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}
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clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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if (r->err_ctx == NULL && clcf->error_pages) {
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err_page = clcf->error_pages->elts;
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for (i = 0; i < clcf->error_pages->nelts; i++) {
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if (err_page[i].status == error) {
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r->err_status = err_page[i].overwrite;
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r->err_ctx = r->ctx;
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r->method = NGX_HTTP_GET;
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if (err_page[i].uri.data[0] == '/') {
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return ngx_http_internal_redirect(r, &err_page[i].uri,
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NULL);
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}
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r->headers_out.location =
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ngx_list_push(&r->headers_out.headers);
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if (r->headers_out.location) {
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r->err_status = NGX_HTTP_MOVED_TEMPORARILY;
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error = NGX_HTTP_MOVED_TEMPORARILY;
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r->headers_out.location->hash = 1;
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r->headers_out.location->key.len = sizeof("Location") - 1;
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r->headers_out.location->key.data = (u_char *) "Location";
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r->headers_out.location->value = err_page[i].uri;
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} else {
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error = NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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}
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}
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}
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if (error == NGX_HTTP_NO_CONTENT) {
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/* 204 */
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err = 0;
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} else if (error < NGX_HTTP_BAD_REQUEST) {
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/* 3XX */
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err = error - NGX_HTTP_MOVED_PERMANENTLY + NGX_HTTP_LEVEL_200;
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} else if (error < NGX_HTTP_OWN_CODES) {
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/* 4XX */
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err = error - NGX_HTTP_BAD_REQUEST + NGX_HTTP_LEVEL_200
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+ NGX_HTTP_LEVEL_300;
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} else {
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/* 49X, 5XX */
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err = error - NGX_HTTP_OWN_CODES + NGX_HTTP_LEVEL_200
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+ NGX_HTTP_LEVEL_300
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+ NGX_HTTP_LEVEL_400;
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switch (error) {
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case NGX_HTTP_TO_HTTPS:
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r->headers_out.status = NGX_HTTP_BAD_REQUEST;
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error = NGX_HTTP_BAD_REQUEST;
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break;
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}
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}
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msie_padding = 0;
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if (error_pages[err].len) {
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r->headers_out.content_length_n = error_pages[err].len
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+ sizeof(error_tail) - 1;
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if (clcf->msie_padding
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&& r->headers_in.msie
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&& r->http_version >= NGX_HTTP_VERSION_10
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&& error >= NGX_HTTP_BAD_REQUEST
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&& error != NGX_HTTP_REQUEST_URI_TOO_LARGE)
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{
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r->headers_out.content_length_n += sizeof(ngx_http_msie_stub) - 1;
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msie_padding = 1;
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}
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r->headers_out.content_type.len = sizeof("text/html") - 1;
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r->headers_out.content_type.data = (u_char *) "text/html";
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} else {
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r->headers_out.content_length_n = -1;
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}
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if (r->headers_out.content_length) {
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r->headers_out.content_length->hash = 0;
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r->headers_out.content_length = NULL;
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}
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ngx_http_clear_accept_ranges(r);
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ngx_http_clear_last_modified(r);
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rc = ngx_http_send_header(r);
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if (rc == NGX_ERROR || r->header_only) {
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return rc;
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}
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if (error_pages[err].len == 0) {
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return NGX_OK;
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}
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b = ngx_calloc_buf(r->pool);
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if (b == NULL) {
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return NGX_ERROR;
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}
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b->memory = 1;
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b->pos = error_pages[err].data;
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b->last = error_pages[err].data + error_pages[err].len;
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cl = ngx_alloc_chain_link(r->pool);
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if (cl == NULL) {
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return NGX_ERROR;
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}
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cl->buf = b;
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out = cl;
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b = ngx_calloc_buf(r->pool);
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if (b == NULL) {
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return NGX_ERROR;
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}
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b->memory = 1;
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b->pos = error_tail;
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b->last = error_tail + sizeof(error_tail) - 1;
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cl->next = ngx_alloc_chain_link(r->pool);
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if (cl->next == NULL) {
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return NGX_ERROR;
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}
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cl = cl->next;
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cl->buf = b;
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if (msie_padding) {
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b = ngx_calloc_buf(r->pool);
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if (b == NULL) {
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return NGX_ERROR;
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}
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b->memory = 1;
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b->pos = ngx_http_msie_stub;
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b->last = ngx_http_msie_stub + sizeof(ngx_http_msie_stub) - 1;
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cl->next = ngx_alloc_chain_link(r->pool);
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if (cl->next == NULL) {
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return NGX_ERROR;
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}
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cl = cl->next;
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cl->buf = b;
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}
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if (r == r->main) {
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b->last_buf = 1;
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}
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b->last_in_chain = 1;
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cl->next = NULL;
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return ngx_http_output_filter(r, out);
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}
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