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Disable-AutoProxySettings.sh
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Disable-AutoProxySettings.sh
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#!/bin/bash
###################################################################################################
# Script Name: Disable-AutoProxySettings.sh
# By: Zack Thompson / Created: 3/31/2024
# Version: 1.0.0 / Updated: 3/31/2024 / By: ZT
#
# Description: This script disables Auto proxy settings for each network service interface.
#
###################################################################################################
##################################################
# Functions
logger() {
# Arguments
# $1 = (str) Message that will be written to a log file
# $2 = (str) Append time stamp to string; Default: true
# $3 = (str) Include a new line before time stamp; Default: false
# $4 = (str) Include a new line after string; Default: true
local message="${1}"
local append_time_stamp="${2}"
local new_line_before="${3}"
local new_line_after="${4}"
local time_stamp
if [[ "${append_time_stamp}" != "false" ]]; then
time_stamp="$( /bin/date +%Y-%m-%d\ %H:%M:%S ): "
fi
if [[ "${new_line_before}" == "true" ]]; then
message="\n${time_stamp}${message}"
fi
if [[ "${new_line_after}" == "false" ]]; then
echo -en "${message}"
else
echo -e "${message}"
fi
}
##################################################
# Bits staged...
logger "***** Disable-AutoProxySettings: START *****"
# Detect network hardware & create services for any newly found interfaces
/usr/sbin/networksetup -detectnewhardware > /dev/null
# Get all available network service interfaces
network_services=$( /usr/sbin/networksetup -listallnetworkservices | /usr/bin/tail +2 )
logger "Checking proxy configurations..." "true" "true"
# Loop through the network service interfaces
while IFS=$'\n' read -r network_service; do
auto_proxy_config=$( /usr/sbin/networksetup -getautoproxyurl "${network_service}" )
auto_proxy_discovery=$( /usr/sbin/networksetup -getproxyautodiscovery "${network_service}" )
auto_proxy_url=$( echo "${auto_proxy_config}" | /usr/bin/awk -F 'URL: ' '{print $2}' | /usr/bin/xargs )
logger \
"${network_service} Automatic proxy configuration:\n${auto_proxy_config}\n${auto_proxy_discovery}" \
"true" "true"
if [[ -n "${auto_proxy_url}" && "${auto_proxy_url}" != "(null)" ]]; then
logger "Removing configured proxy address for ${network_service}"
/usr/sbin/networksetup -setautoproxyurl "${network_service}" " "
reset_auto_proxy_config_url="true"
fi
if [[
$( echo "${auto_proxy_config}" | /usr/bin/awk -F 'Enabled: ' '{print $2}' | /usr/bin/xargs ) == "Yes"
|| "${reset_auto_proxy_config_url}" == "true"
]]; then
logger "Disabling auto proxy for interface ${network_service}"
/usr/sbin/networksetup -setautoproxystate "${network_service}" off
fi
if [[
$( echo "${auto_proxy_discovery}" | /usr/bin/awk -F 'Auto Proxy Discovery: ' '{print $2}' | /usr/bin/xargs ) == "On"
]]; then
logger "Disabling Auto proxy discovery for ${network_service}"
/usr/sbin/networksetup -setproxyautodiscovery "${network_service}" off
fi
done < <(echo "${network_services}")
logger "Checking hosts file definitions..." "true" "true"
hosts_file="/private/etc/hosts"
declare -a add_to_hosts_file
add_to_hosts_file=(
"255.255.255.255 wpad # WPAD Mitigation" \
"255.255.255.255 wpad.ad # WPAD Mitigation"
)
# Loop through the host file definitions to add
for add_def in "${add_to_hosts_file[@]}"; do
if /usr/bin/grep --ignore-case --quiet "${add_def}" "${hosts_file}"; then
echo "WPAD definition already added to hosts file"
else
echo "Adding: ${add_def}"
echo "${add_def}" >> "${hosts_file}"
fi
done
logger "***** Disable-AutoProxySettings: COMPLETE *****" "true" "true"
exit 0