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Python

import urllib.request as urlreq
from typing import List, Dict
from bs4 import BeautifulSoup
import os
import zipfile
import optparse
import asyncio
import shutil
redditurl: str = 'https://old.reddit.com/r/%s' # the url for reddit with %s to insert the subreddit name
dl_dir: str = './.cache/' # Format must be ./ # the directory where files are cached. Will be created if it doesn't exist
img_ext: List[str] = ['jpg', 'png', 'bmp'] # file extensions that are images
blacklist: List[str] = ['b.thumbs.redditmedia.com', 'reddit.com'] # where images shouldn't be downloaded from
hdr: Dict[str, str] = { # request header
'User-Agent': """Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.11 (KHTML, like Gecko)
Chrome/23.0.1271.64 Safari/537.11""",
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.3', 'Accept-Encoding': 'none', 'Accept-Language': 'en-US,en;q=0.8',
'Connection': 'keep-alive'}
# prints a progress bar
def print_progress(iteration, total, prefix='', suffix='', decimals=1, length=100, fill=''):
percent = ("{0:." + str(decimals) + "f}").format(100 * (iteration / float(total)))
filled_length = int(length * iteration // total)
bar = fill * filled_length + '-' * (length - filled_length)
print('\r%s |%s| %s%% %s' % (prefix, bar, percent, suffix), end='\r')
# Print New Line on Complete
if iteration == total:
print()
# returns a soup for the given url
async def request_soup(url):
req = urlreq.Request(url, headers=hdr)
html = None
for x in range(0, 10):
try:
html = urlreq.urlopen(req).read()
break
except Exception as e:
print('[-]', e)
await asyncio.sleep(1)
soup = BeautifulSoup(html, "lxml")
return soup
# returns all images for the given url
async def get_img_as(url):
soup = await request_soup(url)
ret = []
for t in soup.find_all(has_source):
if 'redditmedia' not in t['src']:
try:
ret.append(t['src'])
except KeyError:
pass
return ret
# returns the last post id in the given reddit page
async def get_next(url):
ids = []
soup = await request_soup(url)
for t in soup.find_all(has_source):
if 'redditmedia' not in t['src']:
try:
fname = t['data-fullname']
ids.append(fname)
except KeyError:
pass
return [_id for _id in ids if _id][-1]
# returns if the given tag has a source attribute that is an image
def has_source(tag):
if tag.has_attr('src'):
try:
return tag['src'].split('.')[-1].lower() in img_ext
except IndexError or KeyError:
return False
elif tag.has_attr('data-url'):
try:
tag['src'] = tag['data-url']
return tag['src'].split('.')[-1].lower() in img_ext
except KeyError or KeyError:
return False
else:
return False
# downloads all images for the given url and puts them in a zipfile
async def download_async(url, zfile=None, test=False):
images = await get_img_as(url)
print('[+] Found %s images' % len(images))
logmsg = ""
imgcount = len(images)
savedcount = 0
count = 0
print_progress(count, imgcount, prefix="Downloading: ", suffix="Complete")
for img in images:
print_progress(count+1, imgcount, prefix="Downloading: ", suffix="Complete")
count += 1
if test:
continue
try:
if 'http' not in img.split('/')[0] and '//' not in img.split('.')[0]:
img = url + img
if 'http' not in img.split('/')[0]:
img = 'http:' + img
if img.strip('http://').strip('https://').split('/')[0] in blacklist:
img = None
continue
imgname = img.split('/')[-1]
name = dl_dir + imgname
if os.path.isfile(name):
continue
f = open(name, "wb")
req = urlreq.Request(img, headers=hdr)
image = urlreq.urlopen(req)
f.write(image.read())
f.close()
zfile.write(name, imgname, zipfile.ZIP_DEFLATED)
try:
os.remove(name)
except FileNotFoundError or PermissionError:
pass
savedcount += 1
await asyncio.sleep(0.25)
except Exception as error:
logmsg += '[-] Failed with %s %s\n' % (img, error)
print('[+] %s images downloaded | %s finished %s' % (savedcount, logmsg, url))
# loops over reddit-pages until no more images are found
async def dl_loop(section, zfile, loop, chaos=False, test=False):
baseurl = redditurl % section
url = baseurl
if chaos:
loop.create_task(download_async(url, zfile, test))
else:
await loop.create_task(download_async(url, zfile, test))
while True:
print('[*] Getting Images from %s' % url)
try:
after = await get_next(url)
url = '{}/?after={}'.format(baseurl, after)
if chaos:
loop.create_task(download_async(url, zfile, test))
else:
await loop.create_task(download_async(url, zfile, test))
except Exception as ex:
print('[-]', ex)
zfile.close()
break
finally:
await asyncio.sleep(0.1)
# the main function
def main(sections, opts):
chaos = opts.chaos
if not os.path.exists(dl_dir):
os.makedirs(dl_dir)
zfiles = {}
for sect in sections:
mode = 'w'
if os.path.isfile(sect + '.zip'):
mode = 'a'
zfiles[sect] = zipfile.ZipFile('%s.zip' % sect, mode)
loop = asyncio.get_event_loop()
try:
for sect in sections:
if chaos:
loop.create_task(loop.create_task(
dl_loop(sect, zfiles[sect], loop, chaos=True, test=opts.test)))
else:
loop.run_until_complete(loop.create_task(
dl_loop(sect, zfiles[sect], loop, test=opts.test)))
if chaos:
loop.run_forever()
except KeyboardInterrupt:
for sect in sections:
try:
zfiles[sect].close()
except Exception as error:
print(error)
finally:
shutil.rmtree(dl_dir)
if __name__ == '__main__':
parser = optparse.OptionParser(usage="usage: %prog [options] [subreddits]")
parser.add_option('-c', '--chaos', dest='chaos',
action='store_true', default=False,
help=""" Doesn't wait for previous downloads to finish and doesn't exit when no more
images can be found. Do only activate this if you want to download a lot of images
from multiple subreddits at the same time. Only option to exit is CTRL + C.""")
parser.add_option('-t', '--test', dest='test',
action='store_true', default=False,
help='Tests the functions of the script')
options, sects = parser.parse_args()
print('[~] Recieved subreddits %s' % ', '.join(sects))
main(sects, opts=options)