A little useless: extract a TGA from a Splatoon POST request then convert it to PNG.

gambitpost.py

import sys, os
from PIL import Image

if len(sys.argv) < 2:
	print("Usage: {0} [POST data file]".format(sys.argv[0]))
	sys.exit(1)
try:
	file = open(sys.argv[1], mode="rb").read()
except Exception as ex:
	print("Failed to open {0}.\r\n\r\n{1}".format(sys.argv[1], str(ex)))
	sys.exit(1)

# The 'Content-Type: image/tga' text, line feed, everything before the actual file
bf = b"\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x44\x69\x73\x70\x6F\x73\x69\x74\x69\x6F\x6E\x3A\x20\x66\x6F\x72\x6D\x2D\x64\x61\x74\x61\x3B\x20\x6E\x61\x6D\x65\x3D\x22\x46\x61\x63\x65\x49\x6D\x67\x22\x3B\x20\x66\x69\x6C\x65\x6E\x61\x6D\x65\x3D\x22\x66\x61\x63\x65\x49\x6D\x67\x2E\x74\x67\x61\x22\x0D\x0A\x43\x6F\x6E\x74\x65\x6E\x74\x2D\x54\x79\x70\x65\x3A\x20\x69\x6D\x61\x67\x65\x2F\x74\x67\x61\x0D\x0A\x0D\x0A"
# The end of the TGA header
af = b"\x54\x52\x55\x45\x56\x49\x53\x49\x4F\x4E\x2D\x58\x46\x49\x4C\x45\x2E\x00"

i1 = file.index(bf) + 99

writename = os.path.splitext(sys.argv[1])[0] + "_out"
writename_tga = writename + ".tga"
writename_png = writename + ".png"

# Now that we have the tga, let's write it
targa = file[i1:-32]
try:
	tga = open(writename_tga, "bw")
	tga.write(targa)
except Exception as ex:
	print("Failed to convert tga or write to {0}.\r\n\r\n{1}".format(writename_tga, str(ex)))
	sys.exit(1)

# Let's also convert the tga to png
im = Image.open(writename_tga)
imbg = im.convert()
imbg.save(writename_png, quality=100)

# And we're finished?