Add fallback tsschecker (for #81)

resources/blobs.sh

@@ -1,30 +1,44 @@
 #!/bin/bash
 
 SaveOTABlobs() {
+    local ExtraArgs
     local SHSHChk
+    local SHSHContinue
     local SHSHExisting
     
     Log "Saving $OSVer blobs with tsschecker..."
     BuildManifest="resources/manifests/BuildManifest_${ProductType}_${OSVer}.plist"
+    ExtraArgs="-d $ProductType -i $OSVer -e $UniqueChipID -m $BuildManifest -o -s"
     if [[ $DeviceProc == 7 ]]; then
         local APNonce=$($irecovery -q | grep "NONC" | cut -c 7-)
         Log "APNonce: $APNonce"
-        $tsschecker -d $ProductType -B ${HWModel}ap -i $OSVer -e $UniqueChipID -m $BuildManifest --apnonce $APNonce -o -s
+        ExtraArgs+=" -B ${HWModel}ap --apnonce $APNonce"
         SHSHChk=${UniqueChipID}_${ProductType}_${HWModel}ap_${OSVer}-${BuildVer}_${APNonce}.shsh*
     else
-        $tsschecker -d $ProductType -i $OSVer -e $UniqueChipID -m $BuildManifest -o -s
         SHSHChk=${UniqueChipID}_${ProductType}_${OSVer}-${BuildVer}*.shsh*
     fi
+    $tsschecker $ExtraArgs
+    
     SHSH=$(ls $SHSHChk)
     SHSHExisting=$(ls saved/shsh/$SHSHChk 2>/dev/null)
     if [[ ! $SHSH && ! $SHSHExisting ]]; then
+        Log "Saving $OSVer blobs failed. Trying again with fallback tsschecker..."
+        $tsschecker2 $ExtraArgs
+    
+        SHSH=$(ls $SHSHChk)
+        if [[ ! $SHSH ]]; then
             Error "Saving $OSVer blobs failed. Please run the script again" \
             "It is also possible that $OSVer for $ProductType is no longer signed"
+        fi
+    
     elif [[ ! $SHSH ]]; then
         Log "Saving $OSVer blobs failed, but found existing saved SHSH blobs. Continuing..."
         cp $SHSHExisting .
         SHSH=$(ls $SHSHChk)
-    else
+        SHSHContinue=1
+    fi
+    
+    if [[ ! -z $SHSH && $SHSHContinue != 1 ]]; then
         mkdir -p saved/shsh 2>/dev/null
         [[ ! $SHSHExisting ]] && cp "$SHSH" saved/shsh
         Log "Successfully saved $OSVer blobs."

resources/depends.sh

@@ -14,6 +14,7 @@ SetToolPaths() {
         ipwndfu="sudo $python ipwndfu"
         rmsigchks="sudo $python rmsigchks.py"
         SimpleHTTPServer="sudo -b $python -m SimpleHTTPServer 80"
+        tsschecker2="env LD_PRELOAD=./resources/lib/libcurl.so.3 LD_LIBRARY_PATH=./resources/lib ./resources/tools/tsschecker2_linux"
     
     elif [[ $OSTYPE == "darwin"* ]]; then
         platform="macos"
@@ -28,6 +29,7 @@ SetToolPaths() {
         ipwndfu="$python ipwndfu"
         rmsigchks="$python rmsigchks.py"
         SimpleHTTPServer="$python -m SimpleHTTPServer 80"
+        tsschecker2="./resources/tools/tsschecker2_macos"
     fi
     git="$(which git)"
     ideviceenterrecovery="./resources/libimobiledevice_$platform/ideviceenterrecovery"