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Archive.py
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Archive.py
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#!/usr/bin/env python3
from abc import ABCMeta, abstractmethod
from io import BytesIO
import os
import zipfile
import rarfile
def is_image(filename):
return filename.lower().endswith("jpg") or \
filename.lower().endswith("jpeg") or \
filename.lower().endswith("png") or \
filename.lower().endswith("gif")
class Archive(metaclass=ABCMeta):
@abstractmethod
def list(self):
pass
@abstractmethod
def open(self, filename):
pass
class Rar(Archive):
def __init__(self, filename):
self.rar = rarfile.RarFile(filename)
self.path = filename
def list(self):
return sorted([x for x in self.rar.namelist() if is_image(x)])
def open(self, filename):
imagefile = self.rar.open(filename)
image = BytesIO()
image.write(imagefile.read())
imagefile.close()
image.seek(0)
return image
class Tree(Archive):
def __init__(self, dirname):
self.path = dirname
def list(self):
return sorted([os.path.join(self.path, filename)
for filename in os.listdir(self.path)
if is_image(filename)])
def open(self, filename):
image = open(filename, "rb")
return image
class Zip(Archive):
def __init__(self, filename):
self.zip = zipfile.ZipFile(filename)
self.path = filename
def list(self):
return sorted([x for x in self.zip.namelist() if is_image(x)])
def open(self, filename):
imagefile = self.zip.open(filename)
image = BytesIO()
image.write(imagefile.read())
image.seek(0)
return image