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#!/bin/bash

# Copyright © Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2019 All Rights Reserved
#
# Licensed under CLOUD LINUX LICENSE AGREEMENT
# http://cloudlinux.com/docs/LICENSE.TXT
# CageFS script to patch and rebuild Apache's suexec

. /opt/cloudlinux/venv/usr/share/python-cllib/scripts/cl-common
common_path_of_cpanel="/usr/share/cagefs/cpanel"

if [ -z "$1" ]
then
    MIN_UID=500
else
    MIN_UID=$1
fi

ROOT_UID=0

if [ "$UID" -ne "$ROOT_UID" ]
then
  echo "ERROR: root privileges required"
  exit
fi

if is_ea4; then
    writeToLog "[CageFS] EasyApache 4 is active. Skip rebuilding suexec" "$common_path_of_cpanel"
    exit 0
fi

writeToLog "[CageFS] rebuild suexec" "$common_path_of_cpanel"

	# patch apache's suexec
	log=$(getLogFile "$common_path_of_cpanel")
	easyApacheDir=$(getEasyApacheDir)
	currentpath=$(pwd)
	cd $common_path_of_cpanel

	if [ -e "httpd2-cagefs_jail.patch" ];then
	    cd $easyApacheDir/src
	    for dirname in ./httpd*; do
		if [ -d "$dirname/support" ];then
                echo $dirname >>$log
				cd $dirname/support
                if [ "$2" == "restore" ]; then
					# apply patch if it has not been applied yet
    		        patch -N -i $common_path_of_cpanel/httpd2-cagefs_jail.patch >/dev/null
    		        patch -R -N -i $common_path_of_cpanel/httpd2-cagefs_jail.patch 1>>$log 2>>$log
                else
					# reverse patch if it is already applied
    		        patch -R -N -i $common_path_of_cpanel/httpd2-cagefs_jail.patch >/dev/null
    		        patch -N -i $common_path_of_cpanel/httpd2-cagefs_jail.patch 1>>$log 2>>$log
                fi
    		    if [ $? != 0 ];then
        			echo "Error applying patch. Please, contact support at http://www.cloudlinux.com/support/" >>$log
        			cd $currentpath
        			exit 1
    		    else
        			echo "Patch was applied correctly..." >>$log
    		    fi

				#../srclib/apr/libtool --mode=compile gcc -pthread -I/opt/pcre/include -DLINUX=2 -D_REENTRANT -D_GNU_SOURCE -D_LARGEFILE64_SOURCE -DSECURELVE_MIN_UID=$MIN_UID   -I. -I"$easyApacheDir"/src/httpd-2.2.19/os/unix -I$easyApacheDir/src/httpd-2.2.19/server/mpm/prefork -I$easyApacheDir/src/httpd-2.2.19/modules/http -I$easyApacheDir/src/httpd-2.2.19/modules/filters -I$easyApacheDir/src/httpd-2.2.19/modules/proxy -I$easyApacheDir/src/httpd-2.2.19/include -I$easyApacheDir/src/httpd-2.2.19/modules/generators -I$easyApacheDir/src/httpd-2.2.19/modules/mappers -I$easyApacheDir/src/httpd-2.2.19/modules/database -I$easyApacheDir/src/httpd-2.2.19/srclib/apr/include -I$easyApacheDir/src/httpd-2.2.19/srclib/apr-util/include -I$easyApacheDir/src/httpd-2.2.19/modules/proxy/../generators -I/usr/include -I/usr/kerberos/include -I$easyApacheDir/src/httpd-2.2.19/modules/ssl -I$easyApacheDir/src/httpd-2.2.19/modules/dav/main  -prefer-non-pic -static -c suexec.c && touch suexec.lo
				#../srclib/apr/libtool --mode=link gcc -pthread -I/opt/pcre/include -L/opt/pcre/lib -lpcre -L/usr/lib -L/usr/kerberos/lib -ldl -o suexec suexec.lo

                cd ..
                CFLAGS='-O0' ./configure --enable-expires --enable-headers --enable-info	--enable-logio --enable-proxy --enable-rewrite --enable-ssl --enable-suexec --prefix=/usr/local/apache --with-included-apr --with-pcre=/opt/pcre --with-ssl=/usr --with-suexec-caller=nobody --with-suexec-docroot=/ --with-suexec-gidmin=100 --with-suexec-logfile=/usr/local/apache/logs/suexec_log --with-suexec-uidmin=100 --with-suexec-userdir=public_html LDFLAGS="-Wl,-rpath,/opt/pcre/lib" 1>>$log 2>>$log
                cd ./support

                make suexec 1>>$log 2>>$log

		if [ "$2" != "restore" ]; then
                # check that suexec is correct
                if grep lve_jail ./suexec 1>>$log 2>>$log && grep "or trusted user" ./suexec 1>>$log 2>>$log ; then
                    # install suexec
                    cp -f ./suexec /usr/local/apache/bin/suexec 1>>$log 2>>$log
                    chown root:root /usr/local/apache/bin/suexec 1>>$log 2>>$log
                    chmod ug+s /usr/local/apache/bin/suexec 1>>$log 2>>$log

                    break
                else
                    echo "Error while rebuilding suexec"
                    echo "Please, try to rebuild suexec manually"
                    echo "If you use CPanel, you should run:"
                    echo "/scripts/upcp --force"
                    echo "/scripts/easyapache"
                    echo ""
                    cd $currentpath
                    exit 1
                fi
		else
                   cp -f ./suexec /usr/local/apache/bin/suexec 1>>$log 2>>$log
                   chown root:root /usr/local/apache/bin/suexec 1>>$log 2>>$log
                   chmod ug+s /usr/local/apache/bin/suexec 1>>$log 2>>$log
		fi

                cd $easyApacheDir/src
		fi
	    done
	else
	    echo "Cannot find httpd2-cagefs_jail.patch. Contact support at http://www.cloudlinux.com/support/" >>$log
	    cd $currentpath
	    exit 1
	fi

	cd $currentpath

writeToLog "[CageFS] suexec was rebuilt successfully" "$common_path_of_cpanel"

exit 0