Legacy-iOS-Kit/resources/downgrade.sh
2022-05-28 18:21:26 +08:00

124 lines
4.3 KiB
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Executable File

#!/bin/bash
FRBaseband() {
local BasebandSHA1L
if [[ $DeviceProc == 7 ]]; then
mkdir -p saved/baseband 2>/dev/null
cp -f $IPSWRestore/Firmware/$Baseband saved/baseband
fi
if [[ ! -e saved/baseband/$Baseband ]]; then
Log "Downloading baseband..."
$partialzip $BasebandURL Firmware/$Baseband $Baseband
$partialzip $BasebandURL BuildManifest.plist BuildManifest.plist
mkdir -p saved/$ProductType saved/baseband 2>/dev/null
mv $Baseband saved/baseband
mv BuildManifest.plist saved/$ProductType
BuildManifest="saved/$ProductType/BuildManifest.plist"
elif [[ $DeviceProc != 7 ]]; then
BuildManifest="saved/$ProductType/BuildManifest.plist"
fi
BasebandSHA1L=$(shasum saved/baseband/$Baseband | awk '{print $1}')
if [[ ! -e $(ls saved/baseband/$Baseband) || $BasebandSHA1L != $BasebandSHA1 ]]; then
rm -f saved/baseband/$Baseband saved/$ProductType/BuildManifest.plist
if [[ $DeviceProc == 7 ]]; then
Error "Downloading/verifying baseband failed. Please run the script again"
else
Log "Downloading/verifying baseband failed, will proceed with --latest-baseband flag"
return 1
fi
fi
}
FutureRestore() {
local ExtraArgs=("--use-pwndfu")
Log "Proceeding to futurerestore..."
[[ $platform == "linux" ]] && Echo "* Enter your user password when prompted"
cd resources
$SimpleHTTPServer &
ServerPID=$!
cd ..
if [[ $DeviceProc == 7 ]]; then
# Send dummy file for device detection
$irecovery -f README.md
sleep 2
ExtraArgs+=("-s" "$IPSWRestore/Firmware/all_flash/$SEP" "-m" "$BuildManifest")
elif [[ $SendiBSS != 1 ]]; then
ExtraArgs+=("--no-ibss")
fi
if [[ $Baseband == 0 ]]; then
Log "Device $ProductType has no baseband"
ExtraArgs+=("--no-baseband")
else
FRBaseband
if [[ $? == 1 ]]; then
ExtraArgs+=("--latest-baseband")
else
ExtraArgs+=("-b" "saved/baseband/$Baseband" "-p" "$BuildManifest")
fi
fi
Log "Running futurerestore with command: $futurerestore -t \"$SHSH\" ${ExtraArgs[*]} \"$IPSWRestore.ipsw\""
$futurerestore -t "$SHSH" "${ExtraArgs[@]}" "$IPSWRestore.ipsw"
if [[ $? != 0 ]]; then
Log "An error seems to have occurred in futurerestore."
Echo "* Please read the \"Troubleshooting\" wiki page in GitHub before opening any issue!"
Echo "* Your problem may have already been addressed within the wiki page."
Echo "* If opening an issue in GitHub, please provide a FULL log. Otherwise, your issue may be dismissed."
else
echo
Log "Restoring done!"
fi
Log "Downgrade script done!"
}
DowngradeOther() {
Input "Select your IPSW file in the file selection window."
IPSW="$($zenity --file-selection --file-filter='IPSW | *.ipsw' --title="Select IPSW file")"
[[ ! -s "$IPSW" ]] && Error "No IPSW selected, or IPSW file not found."
IPSW="${IPSW%?????}"
Log "Selected IPSW file: $IPSW.ipsw"
Input "Select your SHSH file in the file selection window."
SHSH="$($zenity --file-selection --file-filter='SHSH | *.shsh *.shsh2' --title="Select SHSH file")"
[[ ! -s "$SHSH" ]] && Error "No SHSH selected, or SHSH file not found."
Log "Selected SHSH file: $SHSH"
if [[ ! -e resources/firmware/$ProductType/$BuildVer/index.html ]]; then
unzip -o -j "$IPSW.ipsw" Restore.plist -d tmp
BuildVer=$(cat tmp/Restore.plist | grep -i ProductBuildVersion -A 1 | grep -oPm1 "(?<=<string>)[^<]+")
Log "Getting firmware keys for $ProductType-$BuildVer"
mkdir -p resources/firmware/$ProductType/$BuildVer 2>/dev/null
curl -L https://github.com/LukeZGD/iOS-OTA-Downgrader-Keys/raw/master/$ProductType/$BuildVer/index.html -o tmp/index.html
mv tmp/index.html resources/firmware/$ProductType/$BuildVer
fi
kDFU
IPSWSetExtract
FutureRestore
}
DowngradeOTA() {
[[ $DeviceProc != 7 ]] && JailbreakOption
SaveOTABlobs
IPSWFindVerify
kDFU
[[ $Jailbreak == 1 ]] && IPSW32
IPSWSetExtract
FutureRestore
}
Downgrade() {
Log "Select your options when asked. If unsure, go for the defaults (press Enter/Return)."
echo
if [[ $OSVer == "Other" ]]; then
DowngradeOther
return
fi
DowngradeOTA
}