i love morse code and bash scripting

morse/m0rsarchive.sh

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+#!/bin/bash
+
+echo "M0rsarchive HTB Solution Script"
+echo "Usage: ./m0rsarchive.sh M0rsarchive.zip morsedecode.py"
+echo "[!] Starting in 10 seconds..."
+sleep 10
+
+#make a new, clean working directory
+mkdir ./flagzips
+
+#move to working dir
+cd flagzips
+
+#unzip M0rsarchive.zip
+unzip -j -o -P hackthebox ../$1 1> /dev/null
+
+#rename original pwd image
+mv pwd.png orig_pwd.png
+
+#backup original pwd image
+cp orig_pwd.png pwd_999.png
+
+#unzip -j flattens one dir when extracting
+#unzip -o overwrites; useful for testing
+
+for ((i=999;i>=0;i--)); do
+	unzip -j -o -P $(python3 ../$2 pwd_$i.png) flag_$i.zip 1> /dev/null;
+	mv pwd.png pwd_$(( $i-1 )).png
+	clear; echo $((1000 - $i))/1000
+done
+
+echo "M0rsarchive HTB Solution Script"
+
+#show flag
+cat flag
+
+#clean up
+cd ..
+rm -r ./flagzips
+
+#one-liner: mv pwd.png pwd_999.png; for i in {999..0}; do unzip -j -P $(python3 morsedecode.py pwd_$i.png) flag_$i.zip; mv pwd.png pwd_$(($i - 1)).png ;done ; cat flag
+

morse/morsedecode.py

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+import sys
+from PIL import Image
+
+if len(sys.argv) != 2:
+	print(" did you mean?: python3 morsedecode.py pwd.png")
+	exit()
+
+filename=sys.argv[1]
+image = Image.open(filename)
+pixels = image.load()
+width, height = image.size
+bgcolour = pixels[0,0]
+
+morse = {
+	".-":"a",
+	"-...":"b",
+	"-.-.":"c",
+	"-..":"d",
+	".":"e",
+	"..-.":"f",
+	"--.":"g",
+	"....":"h",
+	"..":"i",
+	".---":"j",
+	"-.-":"k",
+	".-..":"l",
+	"--":"m",
+	"-.":"n",
+	"---":"o",
+	".--.":"p",
+	"--.-":"q",
+	".-.":"r",
+	"...":"s",
+	"-":"t",
+	"..-":"u",
+	"...-":"v",
+	".--":"w",
+	"-..-":"x",
+	"-.--":"y",
+	"--..":"z",
+	"-----":"0",
+	".----":"1",
+	"..---":"2",
+	"...--":"3",
+	"....-":"4",
+	".....":"5",
+	"-....":"6",
+	"--...":"7",
+	"---..":"8",
+	"----.":"9"
+}
+
+morsecode = ""
+
+
+for i in range(height):
+	line = [0 for i in range(width) ]
+	#print(line)
+
+	mcode = ""
+
+	for x in range(width):
+		if pixels[x,i] != bgcolour:
+			line[x]=1
+			left = pixels[x-1,i]
+			right = pixels[x+1,i]
+			if left != bgcolour and right != bgcolour:
+				mcode += "-"
+			elif left == bgcolour and right == bgcolour:
+				mcode += "."
+			else:
+				pass
+
+	if mcode:
+		morsecode += morse[mcode]
+		#print(mcode)
+		#print(line)
+
+print(morsecode, end='')
+
+
+#convert image to morse code
+
+#output ascii rep