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python threading and queue.
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| #! /usr/bin/env python | |
| import sys | |
| import logging | |
| import json | |
| import threading | |
| import requests | |
| import re | |
| import Queue | |
| from threading import Thread | |
| from io import open as iopen | |
| from urlparse import urlsplit | |
| try: | |
| usersjson = sys.argv[1] | |
| users = json.loads(usersjson)['user'] | |
| usercount = len(users) | |
| wholecount = 0 | |
| except IndexError: | |
| print("Need to specify users list as JSON.") | |
| print('Like {"user":["123","456"]}') | |
| sys.exit(1) | |
| logger = logging.getLogger('panodown') | |
| logger.setLevel(logging.DEBUG) | |
| logform = '%(asctime)s %(name)s[%(process)d]: %(levelname)s: %(message)s' | |
| formatter = logging.Formatter(logform) | |
| ch = logging.StreamHandler() | |
| ch.setLevel(logging.INFO) | |
| fh = logging.FileHandler('output.log') | |
| fh.setLevel(logging.DEBUG) | |
| fh.setFormatter(formatter) | |
| ch.setFormatter(formatter) | |
| logger.addHandler(fh) | |
| logger.addHandler(ch) | |
| logger.info('Start Process:{0}'.format(len(threading.enumerate()))) | |
| userq = Queue.Queue() | |
| photoq = Queue.LifoQueue() | |
| # Panoramio Functions | |
| # setup | |
| S = requests.Session() | |
| S2 = requests.Session() | |
| S.headers['user-agent'] = "Requests Testing" | |
| S2.headers['user-agent'] = "Requests Testing" | |
| base_url = "http://www.panoramio.com" | |
| photovarreg = re.compile("var photos = .*") | |
| photolinkreg = re.compile("http://mw2.google.com/mw-panoramio/photos/medium/[0-9][0-9]+.jpg") | |
| original_path = "http://static.panoramio.com/photos/large/" | |
| page_path = "http://www.panoramio.com/photo/" | |
| pagelinkreg = re.compile('<div class="pages">.*</div>') | |
| def add_count(photocount): | |
| global wholecount | |
| wholecount = wholecount + photocount | |
| lmsg = 'Photo Q/ Photo Count: {0} / {1}'.format(photoq.qsize(), wholecount) | |
| logger.debug(lmsg) | |
| return wholecount | |
| def get_photo(i): | |
| def request_image(user_no, photolink): | |
| suffix_list = ['jpg'] | |
| file_name = urlsplit(photolink)[2].split('/')[-1] | |
| file_suffix = file_name.split('.')[1] | |
| photo_no = file_name.split('.')[0] | |
| photo_page = '{0}{1}'.format(page_path, photo_no) | |
| S2.get(photo_page) | |
| original_photo = '{0}{1}'.format(original_path, file_name) | |
| im = S.get(original_photo) | |
| lmsg = '(T:{2}/{3}){1} - {0} ({4}/{5})'.format(file_name, | |
| user_no.rjust(9), i, | |
| len(threading.enumerate()), | |
| photoq.qsize(), wholecount) | |
| logger.debug(lmsg) | |
| if file_suffix in suffix_list and im.status_code == requests.codes.ok: | |
| with iopen('./photos/{0}'.format(file_name), 'wb') as file: | |
| file.write(im.content) | |
| else: | |
| return False | |
| while True: | |
| photo = photoq.get() | |
| request_image(photo[0], photo[1]) | |
| photoq.task_done() | |
| def get_user_pages(user_no, t_no): | |
| def que_photo(photourl): | |
| photoq.put(photourl) | |
| def find_photo_links(page_source): | |
| ms = photovarreg.search(page_source) | |
| o = ms.group().split("var photos = ")[1] | |
| photolinks = photolinkreg.findall(o) | |
| logger.debug('photos count: {0}'.format(len(photolinks))) | |
| add_count(len(photolinks)) | |
| for photo in photolinks: | |
| que_photo((user_no, photo)) | |
| # setup user_reg_exp | |
| user_url = "/user/{0}".format(user_no) | |
| initial_url = "{0}{1}?show=all".format(base_url, user_url) | |
| r = S.get(initial_url) | |
| linksreg = re.compile('<a href="{0}[^"][^"]*">([0-9][0-9]+)</a>'.format(user_url)) | |
| ls = pagelinkreg.search(r.text) | |
| try: | |
| pages = int(linksreg.findall(ls.group())[0]) | |
| except IndexError: | |
| pages = 2 | |
| find_photo_links(r.text) | |
| i = 1 | |
| while i < pages: | |
| n = i + 1 | |
| get_url = '{0}&photo_page={1}'.format(initial_url, n) | |
| source = S.get(get_url) | |
| find_photo_links(source.text) | |
| lmsg = '(T:{1}/{4}){0}(page {2}/{3})'.format(user_no.rjust(9), t_no, n, | |
| pages, | |
| len(threading.enumerate())) | |
| logger.info(lmsg) | |
| i = i + 1 | |
| def que_user(user_no): | |
| logger.info('{0}: qued'.format(user_no)) | |
| userq.put(user_no) | |
| def run_user(i, q): | |
| while True: | |
| logger.info('Next Thread {0}'.format(i)) | |
| data = q.get() | |
| logger.info('{0} Get started({1})'.format(data, i)) | |
| get_user_pages(data, i) | |
| endmsg = '{0} Ended:{1}'.format(data, len(threading.enumerate())) | |
| logger.info(endmsg) | |
| q.task_done() | |
| def main(): | |
| for i in range(2): | |
| worker = Thread(target=run_user, args=(i, userq)) | |
| worker.setDaemon(True) | |
| worker.start() | |
| for i in range(10): | |
| pworker = Thread(target=get_photo, args=(i,)) | |
| pworker.setDaemon(True) | |
| pworker.start() | |
| map(que_user, users) | |
| userq.join() | |
| logger.info('USERQ END') | |
| print('Userq cleared') | |
| photoq.join() | |
| print('Photoq cleared') | |
| logger.info('PHOTOQ END') | |
| photos = add_count(0) | |
| print('Photos downloaded:{0}'.format(photos)) | |
| if __name__ == '__main__': | |
| main() | |
| # http://qiita.com/konnyakmannan/items/2f0e3f00137db10f56a7 | |
| # http://d.hatena.ne.jp/torasenriwohashiru/20110528/1306594075 | |
| # https://docs.python.org/2/library/threading.html#semaphore-objects | |
| # vim:set sw=4 ts=4 sts=4 expandtab foldmethod=indent: |
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