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Enable NightShift.sh
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Enable NightShift.sh
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#!/bin/bash
# Do NOT Change. New Version will need these variables
#CATALOGURL="https://swscan.apple.com/content/catalogs/others/index-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz"
COREBRIGHTNESS="/System/Library/PrivateFrameworks/CoreBrightness.framework"
COREBRIGHTNESS_A="/System/Library/PrivateFrameworks/CoreBrightness.framework/Versions/A/CoreBrightness"
CBSIGNATURE="/System/Library/PrivateFrameworks/CoreBrightness.framework/Versions/A/_CodeSignature"
CBBACKUP="/Library/CoreBrightness Backup"
MACMODEL="$(sysctl -n hw.model)"
OSVERSION="$(sw_vers -productVersion)"
OFFSET_FULL="$(nm "${COREBRIGHTNESS_A}" | grep _ModelMinVersion | cut -d' ' -f 1 | sed -e 's/^0*//g' | head -1)"
OFFSET="0x${OFFSET_FULL}"
APPSUPPORT="/Library/Application Support/Night Shift/"
echo "Night Shift Enable Script for Unsupported Macs"
echo "version 2.0"
echo "Script made by Isiah Johnson (TMRJIJ) / OS X Hackers and Dosdude1"
echo ""
echo "All credits for this work goes to Piker Alpha. Thanks!"
echo "Special thanks to pookjw, PeterHolbrook, dosdude1, and aonez for their continued critiques and support from their own source work."
echo ""
echo "This script is intended as non-commerical, with no Donation requests, Open Source, and must give thanks to PIke!"
echo "URL: https://pikeralpha.wordpress.com/2017/01/30/4398/"
echo ""
echo ""
# Details about the script
echo "Night Shift was introduced in macOS Sierra 10.12.4 (16E144f) and is controlled by the CoreBrightness.framework. The official minimum requirements for this feature are:
MacBookPro9,x
iMac13,x
Macmini6,x
MacBookAir5,x
MacPro6,x
MacBook8,x
This script will replace the CoreBrightness.framework with one already patched with the matching hex value in CoreBrightness.framework for most older/unsupported hardware.
As such, if something goes wrong (like the Display tab in System Preference crashing) or if this framework copy doesn't work. Please feel free to email me at [email protected] or attempt it manually via Pike's original blog post."
echo ""
# Checks if System Version is at least 10.12.4
echo "Checking System Version..."
echo ""
if [[ "$(echo "${OSVERSION}" | cut -d"." -f2)" -lt 12 ]]; then
echo "Incompatible version of macOS, install macOS Sierra and run this script again"
exit
elif [[ "$(echo "${OSVERSION}" | cut -d"." -f2)" == 12 ]]; then
if [[ "$(echo "${OSVERSION}" | cut -d"." -f3)" -lt 4 ]]; then
echo "Requires macOS 10.12.4 or higher. You have version: $(sw_vers -productVersion), install the newest macOS update and run this script again"
echo ""
exit
fi
fi
# Checks Mac Model
if [[ ! -z "$(echo "${MACMODEL}" | grep "MacBookPro")" ]]; then
if [[ "$(echo "${MACMODEL}" | cut -d"o" -f4 | cut -d"," -f1)" -ge 9 ]]; then
SUPPORTEDMAC=YES
fi
elif [[ ! -z "$(echo "${MACMODEL}" | grep "iMacPro")" ]]; then
SUPPORTEDMAC=YES
elif [[ ! -z "$(echo "${MACMODEL}" | grep "iMac")" ]]; then
if [[ "$(echo "${MACMODEL}" | cut -d"c" -f2 | cut -d"," -f1)" -ge 13 ]]; then
SUPPORTEDMAC=YES
fi
elif [[ ! -z "$(echo "${MACMODEL}" | grep "Macmini")" ]]; then
if [[ "$(echo "${MACMODEL}" | cut -d"i" -f3 | cut -d"," -f1)" -ge 6 ]]; then
SUPPORTEDMAC=YES
fi
elif [[ ! -z "$(echo "${MACMODEL}" | grep "MacBookAir")" ]]; then
if [[ "$(echo "${MACMODEL}" | cut -d"r" -f2 | cut -d"," -f1)" -ge 5 ]]; then
SUPPORTEDMAC=YES
fi
elif [[ ! -z "$(echo "${MACMODEL}" | grep "MacPro")" ]]; then
if [[ "$(echo "${MACMODEL}" | cut -d"o" -f2 | cut -d"," -f1)" -ge 6 ]]; then
SUPPORTEDMAC=YES
fi
elif [[ ! -z "$(echo "${MACMODEL}" | grep "MacBook")" ]]; then
if [[ "$(echo "${MACMODEL}" | cut -d"k" -f2 | cut -d"," -f1)" -ge 8 ]]; then
SUPPORTEDMAC=YES
fi
fi
if [[ "${SUPPORTEDMAC}" == YES ]]; then
echo "Your Mac already supports Night Shift. It is not Recommended to use this Patch."
echo "Quitting..."
exit
fi
#Determining the Offset from OS Version
if [[ "$(echo "${OSVERSION}" | cut -d"." -f2)" == 13 ]]; then
if [[ -z "$(echo "${OSVERSION}" | cut -d"." -f3)" ]]; then # High Sierra
PATCH=1
else
if [ "$(echo "${OSVERSION}" | cut -d"." -f3)" -ge 2 ]; then
PATCH=2 # High Sierra 10.13.2 to Mojave
else
PATCH=1 # 10.13.1
fi
fi
elif [ "$(echo "${OSVERSION}" | cut -d"." -f2)" -gt 13 ]; then # Mojave or newer
Patch=2
else
PATCH=1 # Sierra 10.12.4 or later
fi
# Check if SIP is enabled. Exits if enabled.
echo "Checking System Integrity Protection status..."
echo ""
if [[ !($(csrutil status | grep enabled | wc -l) -eq 0) ]]; then
echo "SIP is enabled on this system. Please boot into Recovery HD or a Sierra Installer USB drive, open a new Terminal Window, and enter 'csrutil disable'. When completed, reboot back into your standard Sierra install, and run this script again."
echo ""
exit
elif [[ "$(csrutil status | head -n 1)" == *"status: enabled (Custom Configuration)"* ]]; then
echo "The SIP status has a Custom Configuration. The script might not work."
fi
# Check if Command Line Tools from XCode are installed
if [[ ! -d "$("xcode-select" -p)" ]]; then
echo "Your Mac doesn't appear to have Command Line Tool. Please type 'xcode-select --install' command in the terminal to install it, then run this script again."
exit
fi
# Actual Patching of Framework
read -p "Ready to begin Patching? [y/n]: " prompt
if [[ $prompt == 'y' ]]; then
echo "Let get started then"
echo ""
#Backup Original Framework
echo "Backing Up older CoreBrightness Framework. It's in your Library Folder"
sudo mkdir -p $CBBACKUP
sudo cp $COREBRIGHTNESS_A /Library/CoreBrightness\ Backup/CoreBrightness.bak
sudo cp -r $CBSIGNATURE /Library/CoreBrightness\ Backup/_CodeSignature.bak
#Patching Framework
echo "Patching Framework"
if [ -z ${OFFSET_FULL} ]; then
echo -e "Can't find the offset to patch, Installation will not continue."
exit
fi
echo "Offset: ${OFFSET}"
echo 'Getting Offset Hex Data'
OFFSET_ORIGINAL="$(xxd -s ${OFFSET} -c 24 -l 24 "${COREBRIGHTNESS_A}")"
echo "Original Hex: ${OFFSET_ORIGINAL}"
if [[ $OFFSET_ORIGINAL == *'0100 0000 0100 0000 0100 0000 0100 0000 0100 0000 0100 0000'* ]]; then
echo -e "A patch was already applied on \"${COREBRIGHTNESS}\". No Need to worry."
exit
fi
# Checking for temp files
if [ -f "${COREBRIGHTNESS}/Versions/Current/CoreBrightness.temp" ]; then
echo -e "Detected obsolete file CoreBrightness.temp from the backup, removing"
sudo rm "${COREBRIGHTNESS}/Versions/Current/CoreBrightness.temp"
fi
if [[ -f "/System/Library/PrivateFrameworks/CoreBrightness.framework/Versions/A/CoreBrightness.tbd" ]]; then
echo "Detected CoreBrightness.tbd, removing..."
sudo rm "${COREBRIGHTNESS}/Versions/A/CoreBrightness.tbd"
fi
#
printf "\x01\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00" | sudo dd count=24 bs=1 seek=$((${OFFSET})) of="${COREBRIGHTNESS_A}" conv=notrunc
echo 'Checking offset hex changed...'
OFFSET_CHECK="$(xxd -s ${OFFSET} -c 24 -l 24 "${COREBRIGHTNESS_A}")"
echo "New Hex Data: ${OFFSET_CHECK}"
# Codesigning
echo "New CoreBrightness will be Codesigned"
sudo codesign -f -s - $COREBRIGHTNESS_A
sudo chmod +x $COREBRIGHTNESS_A
echo ""
echo "Backing up new CoreBrightness Framework in Application Support Folder"
sudo cp -R $COREBRIGHTNESS $APPSUPPORT
echo "Finished. Please restart your Mac. After this, there should be a Night Shift Tab within System Preferences > Displays"
echo "Enjoy"
echo ""
echo "If you have issues, please feel free to go to the Github Repository"
elif [[ $prompt == 'n' ]]; then
echo""
echo "Okay then, bye :P"
exit
else
echo "No idea what you mean by '$prompt'. Closing Script now. Bye!"
exit
fi