view auto/lib/pcre/make @ 6556:654d2dae97d3

HTTP/2: the "421 Misdirected Request" response (closes #848). Since 4fbef397c753 nginx rejects with the 400 error any attempts of requesting different host over the same connection, if the relevant virtual server requires verification of a client certificate. While requesting hosts other than negotiated isn't something legal in HTTP/1.x, the HTTP/2 specification explicitly permits such requests for connection reuse and has introduced a special response code 421. According to RFC 7540 Section 9.1.2 this code can be sent by a server that is not configured to produce responses for the combination of scheme and authority that are included in the request URI. And the client may retry the request over a different connection. Now this code is used for requests that aren't authorized in current connection. After receiving the 421 response a client will be able to open a new connection, provide the required certificate and retry the request. Unfortunately, not all clients currently are able to handle it well. Notably Chrome just shows an error, while at least the latest version of Firefox retries the request over a new connection.
author Valentin Bartenev <vbart@nginx.com>
date Fri, 20 May 2016 18:41:17 +0300
parents 78f8ac479735
children 0b5f12d5c531
line wrap: on
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# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


case "$NGX_CC_NAME" in

    msvc)
        ngx_makefile=makefile.msvc
        ngx_opt="CPU_OPT=\"$CPU_OPT\" LIBC=$LIBC"
        ngx_pcre="PCRE=\"$PCRE\""
    ;;

    owc)
        ngx_makefile=makefile.owc
        ngx_opt="CPU_OPT=\"$CPU_OPT\""
        ngx_pcre=`echo PCRE=\"$PCRE\" | sed -e "s/\//$ngx_regex_dirsep/g"`
    ;;

    bcc)
        ngx_makefile=makefile.bcc
        ngx_opt="-DCPU_OPT=\"$CPU_OPT\""
        ngx_pcre=`echo \-DPCRE=\"$PCRE\" | sed -e "s/\//$ngx_regex_dirsep/g"`
    ;;

    *)
        ngx_makefile=
    ;;

esac


if [ -n "$ngx_makefile" ]; then

    cat << END                                                >> $NGX_MAKEFILE

`echo "$PCRE/pcre.lib:	$PCRE/pcre.h $NGX_MAKEFILE"			\
	| sed -e "s/\//$ngx_regex_dirsep/g"`
	\$(MAKE) -f auto/lib/pcre/$ngx_makefile $ngx_pcre $ngx_opt

`echo "$PCRE/pcre.h:" | sed -e "s/\//$ngx_regex_dirsep/g"`
	\$(MAKE) -f auto/lib/pcre/$ngx_makefile $ngx_pcre pcre.h

END

else

    cat << END                                                >> $NGX_MAKEFILE

$PCRE/pcre.h:	$PCRE/Makefile

$PCRE/Makefile:	$NGX_MAKEFILE
	cd $PCRE \\
	&& if [ -f Makefile ]; then \$(MAKE) distclean; fi \\
	&& CC="\$(CC)" CFLAGS="$PCRE_OPT" \\
	./configure --disable-shared $PCRE_CONF_OPT

$PCRE/.libs/libpcre.a:	$PCRE/Makefile
	cd $PCRE \\
	&& \$(MAKE) libpcre.la

END

fi