Fake gsettings for electron-ssr PAC mode

gsettings

#!/usr/bin/bash
# Fake gsettings for electron-ssr PAC mode
# Author: sford(cjybyjk@gmail.com)

manual_pac="/tmp/proxy_manual.pac"
tmp_conf="/tmp/proxy_conf.txt"

# 对所有设备进行设置
# $1:prop $2:value
function set_proxy_prop()
{
    for netdev in `nmcli connection show | awk -F ' ' '{if (NR>1){print $(NF-2)}}' `; do
        nmcli connection modify uuid "$netdev" "$1" "$2"
    done
}

# 由于nmcli不支持全局代理，使用PAC实现
function write_tmp_pac()
{
    if [ ! -f "$manual_pac" ]; then
        cat > "$manual_pac" << EOF
var proxy = "SOCKS5 127.0.0.1:1080;";
function FindProxyForURL(url, host) {
    if (isPlainHostName(host))
        return "DIRECT";
    else
        return proxy;
}
EOF
    fi
}

# $1:mode $2:value
function set_pac_proxy() 
{
    tmp=$(grep "^var proxy" "$manual_pac" | awk -F ' ' '{print $NF}')
    proxy_host=$(echo $tmp | awk -F ':' '{print $1}')
    proxy_port=$(echo $tmp | awk -F ':' '{print $2}' | tr -cd "[0-9]")
    proxy_mode="$1"
    if [ "$2" == "host" ]; then
        proxy_host="$3"
    elif [ "$2" == "port" ]; then
        proxy_port="$3"
    fi
    sed -i "s#^var proxy .\+;#var proxy = \"$proxy_mode $proxy_host:$proxy_port;\";#g" "$manual_pac"
    set_proxy_prop "proxy.pac-script" "$manual_pac"
}

# $1:name $2:value
function write_value()
{
    local tmp=$(grep "^$1.$2=" $tmp_conf)
    if [ -z "$tmp" ]; then
        echo "$1.$2=$3" >> "$tmp_conf"
    else
        sed -i "s#^$tmp#$1.$2=$3#g" "$tmp_conf"
    fi
    return $?
}

# set
if [ "$1" == "set" ]; then
    write_value "$2" "$3" "$4"
    if [ "$2" == "org.gnome.system.proxy" ]; then
        set_proxy_prop "proxy.pac-url" ""
        set_proxy_prop "proxy.pac-script" ""
        if [ "$3" == "mode" ]; then
            if [ "$4" == "manual" ]; then
                write_tmp_pac
                set_proxy_prop "proxy.method" "auto"
                set_proxy_prop "proxy.pac-script" "$manual_pac"
            else
                set_proxy_prop "proxy.method" "$4"
            fi
        elif [ "$3" == "autoconfig-url" ]; then
            set_proxy_prop "proxy.pac-url" "$4"
        fi
    elif [ "$2" == "org.gnome.system.proxy.socks" ]; then
        set_pac_proxy "SOCKS5" "$3" "$4"
    elif [ "$2" == "org.gnome.system.proxy.http" ]; then
        set_pac_proxy "PROXY" "$3" "$4"
    fi
elif [ "$1" == "get" ]; then
    grep "^$2.$3=" $tmp_conf | awk -F '=' '{print $NF}'
fi