Legacy-iOS-Kit/resources/blobs.sh

#!/bin/bash

SaveOTABlobs() {
    local ExtraArgs
    local SHSHChk
    local SHSHContinue
    local SHSHLatest
    local SHSHExisting
    
    if [[ $DeviceProc != 7 && $Baseband != 0 ]]; then
        if [[ ! -e saved/$ProductType/BuildManifest.plist ]]; then
            Log "Downloading BuildManifest of iOS $LatestVer..."
            $partialzip $BasebandURL BuildManifest.plist BuildManifest.plist
            mkdir -p saved/$ProductType 2>/dev/null
            mv BuildManifest.plist saved/$ProductType
        fi
        if [[ ! -e saved/$ProductType/BuildManifest.plist ]]; then
            Error "Downloading/verifying BuildManifest failed. Please run the script again"
        fi
        Log "Checking signing status of iOS $LatestVer..."
        SHSHChk=*_${ProductType}_${HWModel}ap_${LatestVer}*.shsh*
        $tsschecker -d $ProductType -i $LatestVer -e $UniqueChipID -m saved/$ProductType/BuildManifest.plist -s -B ${HWModel}ap
        SHSHLatest=$(ls $SHSHChk)
        if [[ ! -e $SHSHLatest ]]; then
            Error "For some reason, the latest version for your device (iOS $LatestVer) is not signed. Cannot continue."
        fi
        Log "Latest version for $ProductType (iOS $LatestVer) is signed."
        rm $SHSHLatest
    fi

    Log "Saving iOS $OSVer blobs with tsschecker..."
    BuildManifest="resources/manifests/BuildManifest_${ProductType}_${OSVer}.plist"
    ExtraArgs="-d $ProductType -i $OSVer -e $UniqueChipID -m $BuildManifest -o -s -B ${HWModel}ap -g 0x1111111111111111 -b"
    SHSHChk=${UniqueChipID}_${ProductType}_${HWModel}ap_${OSVer}-${BuildVer}_3a88b7c3802f2f0510abc432104a15ebd8bd7154.shsh*
    $tsschecker $ExtraArgs
    
    SHSH=$(ls $SHSHChk)
    SHSHExisting=$(ls saved/shsh/$SHSHChk 2>/dev/null)
    if [[ ! -e $SHSH && ! -e $SHSHExisting ]]; then
        Error "Saving $OSVer blobs failed. Please run the script again" \
        "It is also possible that $OSVer for $ProductType is no longer signed"
    
    elif [[ ! -e $SHSH ]]; then
        Log "Saving $OSVer blobs failed, but found existing saved SHSH blobs."
        cp $SHSHExisting .
        SHSH=$(ls $SHSHChk)
        SHSHContinue=1
    fi
    
    if [[ -n $SHSH && $SHSHContinue != 1 ]]; then
        mkdir -p saved/shsh 2>/dev/null
        cp "$SHSH" saved/shsh
        Log "Successfully saved $OSVer blobs."
    fi
}