def encode_files(image_in, data_in, image_out, format):
image = Image.open(image_in)
if not hasattr(data_in, 'read'):
data_in = open(data_in, 'rb')
data = data_in.read()
if hasattr(image_out, 'write'):
format = image.format
stepic.encode_inplace(image, data)
image.save(image_out, format)
def encode_files(image_in, data_in, image_out, format):
image = Image.open(image_in)
if not hasattr(data_in, 'read'):
data_in = open(data_in, 'rb')
data = data_in.read()
if hasattr(image_out, 'write'):
format = image.format
stepic.encode_inplace(image, data)
image.save(image_out, format)
def save_to_image(self):
try:
data = self.md5_hash + json.dumps(self.passwords_dict)
except ValueError:
print('password_dict not a valid json')
exit(0)
stepic.encode_inplace(self.image, data)
assert stepic.decode(self.image) == data
self.image.save(self.image_path)
print("\nChanges saved in the image!\n")
def hideTextInImage(fileNameInput, fileNameOutput, textToWrite, verbose):
"""
Hide a text in an image that is read and written on disk.
return : 0 if ok, 1 if problem with fileNameInput,
2 if problem with fileNameOutput,
3 if io problem
parameters :
- fileNameInput : path of the original file
- fileNameOutput : path name of output file with text hidden inside
- textToWrite : text string to hide in file
- verbose : True if message can be written on stdout file
"""
cr = 0
if verbose:
print("Enter in hideTextinImage()")
print("fileNameInput=", fileNameInput)
print("fileNameOutput=", fileNameOutput)
print("textToWrite=", textToWrite)
try:
if fileNameInput:
image = Image.open(fileNameInput)
formatImage = image.format
# v3.0 : stepic.encode_inplace should be an array of int
dataIntArray = [ord(char) for char in textToWrite]
print("image.mode", image.mode)
stepic.encode_inplace(image, dataIntArray)
if fileNameOutput:
image.save(fileNameOutput, formatImage)
else:
cr = 2
else:
cr = 1
except IOError as exc:
print("exception =", exc)
cr = 3
if verbose:
print("Exit from hideTextinImage(), cr=", cr)
return cr
def video(filename, username, t0):
# Orignal Video
original = VideoFileClip("static/videos/"+filename+".mp4")
first_half = VideoFileClip("static/videos/"+filename+".mp4").subclip(0, t0)
second_half = VideoFileClip("static/videos/"+filename+".mp4").subclip(t0+1, original.duration)
original.save_frame("static/videos/frame.png", t=t0)
img = Image.open("static/videos/frame.png").convert(mode='RGB')
stepic.encode_inplace(img, username)
msg = stepic.decode(img)
print(msg)
img.save("static/videos/frame.png")
encoded_clip = ImageClip('static/videos/frame.png', duration=1)
new_mov = CompositeVideoClip([first_half.set_start(0),
encoded_clip.set_start(t0),
second_half.set_start(t0+1)])
# Write the result to a file (many options available !)
new_mov.write_videofile("static/"+username+"_"+filename+".avi", codec='png')
modulename = opt.CRYPT + "def" # [modulename]def.py
globals()["crypt"] = __import__(modulename)
imagem = opt.IMAGE
file_in = opt.FILE
file_out = opt.FILEOUT
#main
image_obj = Image.open(imagem)
stepic._validate_image(image_obj)
if opt.encode:
if not file_out:
file_out = "%s.hd" % (imagem)
data = open(file_in, "r").read()
data = crypt.main_encrypt(data)
stepic.encode_inplace(image_obj, data)
image_obj.save(file_out, image_obj.format)
elif opt.decode:
data = stepic.decode(image_obj)
data = crypt.main_decrypt(data)
if not file_out:
print "------------BEGIN-----------\n", data, "------------END-------------"
else:
fileo = open(opt.FILEOUT, "w")
fileo.write(data)
fileo.close()
else:
parser.print_usage()
image_obj.close()
def clear_all_data(self):
data = '_'
stepic.encode_inplace(self.image, data)
self.image.save(self.image_path)
