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HTTP/2: discard remaining request body after redirect. Previously, if unbuffered request body reading wasn't finished before the request was redirected to a different location using error_page or X-Accel-Redirect, and the request body is read again, this could lead to disastrous effects, such as a duplicate post_handler call or "http request count is zero" alert followed by a segmentation fault. This happened in the following configuration (ticket #1819): location / { proxy_request_buffering off; proxy_pass http://bad; proxy_intercept_errors on; error_page 502 = /error; } location /error { proxy_pass http://backend; }
author Sergey Kandaurov <pluknet@nginx.com>
date Mon, 19 Aug 2019 15:16:06 +0300
parents cc7ff76df927
children
line wrap: on
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# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


if [ $USE_PCRE = YES -o $PCRE != NONE ]; then
    . auto/lib/pcre/conf

else
    if [ $USE_PCRE = DISABLED -a $HTTP = YES -a $HTTP_REWRITE = YES ]; then

cat << END

$0: error: the HTTP rewrite module requires the PCRE library.
You can either disable the module by using --without-http_rewrite_module
option or you have to enable the PCRE support.

END
        exit 1
    fi
fi


if [ $USE_OPENSSL = YES ]; then
    . auto/lib/openssl/conf
fi

if [ $USE_ZLIB = YES ]; then
    . auto/lib/zlib/conf
fi

if [ $USE_LIBXSLT != NO ]; then
    . auto/lib/libxslt/conf
fi

if [ $USE_LIBGD != NO ]; then
    . auto/lib/libgd/conf
fi

if [ $USE_PERL != NO ]; then
    . auto/lib/perl/conf
fi

if [ $USE_GEOIP != NO ]; then
    . auto/lib/geoip/conf
fi

if [ $NGX_GOOGLE_PERFTOOLS = YES ]; then
    . auto/lib/google-perftools/conf
fi

if [ $NGX_LIBATOMIC != NO ]; then
    . auto/lib/libatomic/conf
fi