Quick bash script to try and grab all blobs for a specific iOS device..

quicktsscheck.sh

#!/bin/bash
#
# quicktsscheck.sh
# by /u/magn2o
#
# A simple, quick utility to grab all signed SHSH/blobs. Toss it in crontab and let it work it's magic.
# Tested/built on macOS 10.13.3. 
#
#
# CHANGELOG:
# 
# 1.7
#   - Huzzah! jq is no longer a requirement. I can safely say that this script will now run on a clean/fresh 
#     install of macOS without the need of any dependences. :)
#
# 1.6
#   - Added check for jq (yea.. you're gonna need this)
#
# 1.5
#   - Added ability to specify specific boardconfig.
#   - ECID is no longer case sensitive. Oops.
#
# 1.4
#   - Added a check to skip existing blobs. No sense in duplicating and wasting time..
#  
# 1.3
#   - Allow arguments for ease of scripting multiple devices.
#
# 1.2
#   - Reverse the array when processing, to ensure starting with the oldest version first.
#
# 1.1
#   - Automatically populate IOSVERSIONS with all supported versions for the specified device (thanks, /u/-10ZiN)
#   - Added grep to binary call to reduce spam. Output will simply show what IS and IS NOT being signed.
#
# 1.0
#   - Initial release.
#


# ---------------------------- #
#      USER CONFIGURATION      #
# ---------------------------- #

# Path to tsschecker binary
TSSCHECKER_BINARY="/usr/local/bin/tsschecker"

# Path to save blobs
SAVE_PATH="${HOME}/saved_blobs"






# ---------------------------- #
# DO NOT EDIT BELOW THIS LINE! #
# ---------------------------- #

# Check if tsschecker is installed, otherwise.. eject! EJECT!
if [ ! -x "$TSSCHECKER_BINARY" ]; then
  echo "tsschecker is NOT installed! See https://github.com/tihmstar/tsschecker/releases"
  exit 1
fi

# No arguments? Show usage.
if [[ $# -lt 2 ]]; then
	echo "Usage: $0 <device> <ecid> [board]"
	echo ""
	echo "   <device> - specific device by its MODEL (eg. iPhone4,1)"
	echo "   <ecid>   - specific ECID to be used for fetching blobs. Value must be either dece or hex eg. 5482657301265 or ab46efcbf71"
	echo "   [board]  - (optional) specific boardconfig (eg. n61ap)"
	exit 2
fi

# Set the local variables
DEVICE="$1"
ECID="$2"
BOARD="$3"

# Check user input.. because, well.. users.
if [[ ! "$DEVICE" = *","* ]]; then
	echo "Invalid device identifier. Please check and try again."
	exit 2
fi

if [[ ! "$ECID" =~ ^[0-9A-Fa-f]*$ ]]; then
	echo "Invalid ECID. Please check and try again."
	exit 2
else
	[[ ! "$ECID" =~ ^[0-9]*$ ]] && ECID=$(( 16#${ECID} )) || ECID=${ECID}
fi

if [[ "$BOARD" && ! "$BOARD" =~ ^([Bb]|[Dd]|[Jj]|[Kk]|[Mm]|[Nn]|[Pp])[0-9]{2,3}[A-Za-z]?[Aa][Pp]$ ]]; then
	echo "Invalid boardconfig. Please check and try again."
	exit 2
fi

# Get a list of iOS versions supported for $DEVICE.
IFS=' ' read -a IOSVERSIONS <<< "$( ${TSSCHECKER_BINARY} -d ${DEVICE} ${BOARD:+-B "$BOARD"} --list-ios |grep iOS |tr -s "\n" " " | sed 's/^\[iOS [0-9]\{1,2\}\] //g' )"

# Check to see if $SAVE_PATH exists, if not, create it.
if [ ! -d "${SAVE_PATH}" ]; then
	mkdir "${SAVE_PATH}"
fi

# Iterate through $IOSVERSIONS and run tsschecker against each version, starting with the oldest version first.
for ((i=${#IOSVERSIONS[@]}-1;i>=0;i--)); do
	[[ "$BOARD" ]] && REGEX=".*/${ECID}_${DEVICE}_${BOARD}_${IOSVERSIONS[i]}-.*.shsh2" || REGEX=".*/${ECID}_${DEVICE}_${IOSVERSIONS[i]}-.*.shsh2"

	if [[ -z $( find -E "${SAVE_PATH}" -iregex "${REGEX}" ) ]]; then
		${TSSCHECKER_BINARY} -d ${DEVICE} ${BOARD:+-B "$BOARD"} -i ${IOSVERSIONS[i]} -s -e ${ECID} --save-path "${SAVE_PATH}" | grep -E 'IS.*being signed'
	else
		echo "iOS ${IOSVERSIONS[i]} for device ${DEVICE} already exists, skipping ... "
	fi
done

exit 0