gistfile1.py

#!/usr/bin/env python
import sys
import os
import urllib
import urllib2
import re

def main():
    url = sys.argv[1]
    
    pat = url.split('/')[-1].split('&')    
    userid = pat[0]
    folder = pat[1].split('=')[1]
    
    path = 'yam/%s/%s' % (userid, folder)
    try:
        os.makedirs(path)
    except:
        pass
    
    i = 1
    while True:
        cookies = urllib2.HTTPCookieProcessor()
        opener = urllib2.build_opener(cookies)
        req = urllib2.Request(url=url + '&page=%d&limit=20' % i,
            headers={},
            data=urllib.urlencode({
                'password': folder
            }))
        resp = opener.open(req)
        content = resp.readlines()
        
        valid = False
        for line in content:
            mat = re.findall('<img src=\"(.*?)\".*>', line)
            if mat:
                link = mat[0]
                if link.find('t_') != -1 and link.find('.jpg') != -1:
                    valid = True
                    orig_link = link.replace('t_', '')
                    f = open('%s/%s' % (path, orig_link.split('/')[-1]), 'w')
                    req = urllib2.Request(orig_link)
                    req.add_header('User-Agent', 'Mozilla 5.0')
                    req.add_header('Referer', url)
                    data = urllib2.urlopen(req)
                    f.write(data.read())
                    f.close()
                    print 'Fetched: %s.' % orig_link

        if not valid:
            break
        else:
            i += 1
    print 'Pictures are stored in %s' % path

if __name__ == '__main__':
    main()