openembedded - Classic OpenEmbedded Development Tree

Age	Commit message (Expand)	Author
2009-03-17	rename packages/ to recipes/ per earlier agreement	Denys Dmytriyenko

#!/bin/bash # oe-git-proxy is a simple tool to be via GIT_PROXY_COMMAND. It uses socat # to make SOCKS5 or HTTPS proxy connections. # It uses ALL_PROXY or all_proxy or http_proxy to determine the proxy server, # protocol, and port. # It uses NO_PROXY to skip using the proxy for a comma delimited list of # hosts, host globs (*.example.com), IPs, or CIDR masks (192.168.1.0/24). It # is known to work with both bash and dash shells. # # Example ALL_PROXY values: # ALL_PROXY=socks://socks.example.com:1080 # ALL_PROXY=https://proxy.example.com:8080 # # Copyright (c) 2013, Intel Corporation. # # SPDX-License-Identifier: GPL-2.0-only # # AUTHORS # Darren Hart <dvhart@linux.intel.com> if [ $# -lt 2 -o "$1" = '--help' -o "$1" = '-h' ] ; then echo 'oe-git-proxy: error: the following arguments are required: host port' echo 'Usage: oe-git-proxy host port' echo '' echo 'OpenEmbedded git-proxy - a simple tool to be used via GIT_PROXY_COMMAND.' echo 'It uses socat to make SOCKS or HTTPS proxy connections.' echo 'It uses ALL_PROXY to determine the proxy server, protocol, and port.' echo 'It uses NO_PROXY to skip using the proxy for a comma delimited list' echo 'of hosts, host globs (*.example.com), IPs, or CIDR masks (192.168.1.0/24).' echo 'It is known to work with both bash and dash shells.runs native tools' echo '' echo 'arguments:' echo ' host proxy host to use' echo ' port proxy port to use' echo '' echo 'options:' echo ' -h, --help show this help message and exit' echo '' exit 2 fi # Locate the netcat binary SOCAT=$(which socat 2>/dev/null) if [ $? -ne 0 ]; then echo "ERROR: socat binary not in PATH" 1>&2 exit 1 fi METHOD="" # Test for a valid IPV4 quad with optional bitmask valid_ipv4() { echo $1 | egrep -q "^([1-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(\.([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])){3}(/(3[0-2]|[1-2]?[0-9]))?$" return $? } # Convert an IPV4 address into a 32bit integer ipv4_val() { IP="$1" SHIFT=24 VAL=0 for B in ${IP//./ }; do VAL=$(($VAL+$(($B<<$SHIFT)))) SHIFT=$(($SHIFT-8)) done echo "$VAL" } # Determine if two IPs are equivalent, or if the CIDR contains the IP match_ipv4() { CIDR=$1 IP=$2 if [ -z "${IP%%$CIDR}" ]; then return 0 fi # Determine the mask bitlength BITS=${CIDR##*/} [ "$BITS" != "$CIDR" ] || BITS=32 if [ -z "$BITS" ]; then return 1 fi IPVAL=$(ipv4_val $IP) IP2VAL=$(ipv4_val ${CIDR%%/*}) # OR in the unmasked bits for i in $(seq 0 $((32-$BITS))); do IP2VAL=$(($IP2VAL|$((1<<$i)))) IPVAL=$(($IPVAL|$((1<<$i)))) done if [ $IPVAL -eq $IP2VAL ]; then return 0 fi return 1 } # Test to see if GLOB matches HOST match_host() { HOST=$1 GLOB=$2 if [ -z "${HOST%%$GLOB}" ]; then return 0 fi # Match by netmask if valid_ipv4 $GLOB; then for HOST_IP in $(getent ahostsv4 $HOST | grep ' STREAM ' | cut -d ' ' -f 1) ; do if valid_ipv4 $HOST_IP; then match_ipv4 $GLOB $HOST_IP if [ $? -eq 0 ]; then return 0 fi fi done fi return 1 } # If no proxy is set or needed, just connect directly METHOD="TCP:$1:$2" [ -z "${ALL_PROXY}" ] && ALL_PROXY=$all_proxy [ -z "${ALL_PROXY}" ] && ALL_PROXY=$http_proxy if [ -z "$ALL_PROXY" ]; then exec $SOCAT STDIO $METHOD fi # Connect directly to hosts in NO_PROXY for H in "${NO_PROXY//,/ }"; do if match_host $1 "$H"; then exec $SOCAT STDIO $METHOD fi done # Proxy is necessary, determine protocol, server, and port # extract protocol PROTO=${ALL_PROXY%://*} # strip protocol:// from string ALL_PROXY=${ALL_PROXY#*://} # extract host & port parts: # 1) drop username/password PROXY=${ALL_PROXY##*@} # 2) remove optional trailing /? PROXY=${PROXY%%/*} # 3) extract optional port PORT=${PROXY##*:} if [ "$PORT" = "$PROXY" ]; then PORT="" fi # 4) remove port PROXY=${PROXY%%:*} # extract username & password PROXYAUTH="${ALL_PROXY%@*}" [ "$PROXYAUTH" = "$ALL_PROXY" ] && PROXYAUTH= [ -n "${PROXYAUTH}" ] && PROXYAUTH=",proxyauth=${PROXYAUTH}" if [ "$PROTO" = "socks" ] || [ "$PROTO" = "socks4a" ]; then if [ -z "$PORT" ]; then PORT="1080" fi METHOD="SOCKS4A:$PROXY:$1:$2,socksport=$PORT" elif [ "$PROTO" = "socks4" ]; then if [ -z "$PORT" ]; then PORT="1080" fi METHOD="SOCKS4:$PROXY:$1:$2,socksport=$PORT" else # Assume PROXY (http, https, etc) if [ -z "$PORT" ]; then PORT="8080" fi METHOD="PROXY:$PROXY:$1:$2,proxyport=${PORT}${PROXYAUTH}" fi exec $SOCAT STDIO "$METHOD"