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tumblr_backup: Add --save-notes and --cookies options
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,128 @@ | ||
| #!/usr/bin/env python | ||
| # encoding: utf-8 | ||
|
|
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| import cookielib | ||
| import os | ||
| import urllib2 | ||
| import urlparse | ||
|
|
||
| import selenium | ||
| from selenium import webdriver | ||
| from selenium.webdriver.firefox.options import Options | ||
| from bs4 import BeautifulSoup | ||
|
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| class WebCrawler: | ||
|
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| def __init__(self): | ||
| self.gecko_driver = None | ||
|
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| def find_gecko_driver(self): | ||
| for path in os.environ["PATH"].split(os.pathsep): | ||
| try_loc = os.path.join(path, 'geckodriver') | ||
| if os.access(try_loc, os.X_OK): | ||
| self.gecko_driver = try_loc | ||
| if os.name != 'nt': | ||
| continue | ||
| try_loc += '.exe' | ||
| if os.access(try_loc, os.X_OK): | ||
| self.gecko_driver = try_loc | ||
|
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| return self.gecko_driver | ||
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| def load(self, cookiefile): | ||
| self.driver = None | ||
| d_options = Options() | ||
| d_options.set_headless(True) | ||
| self.driver = webdriver.Firefox(options=d_options, executable_path=self.gecko_driver) | ||
|
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||
| if cookiefile: | ||
| self.cookies = cookielib.MozillaCookieJar(cookiefile) | ||
| self.cookies.load(ignore_discard=False, ignore_expires=False) | ||
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||
| # Session cookies are denoted by either `expires` field set to | ||
| # an empty string or 0. MozillaCookieJar only recognizes the former | ||
| # (see [1]). So we need force the latter to be recognized as session | ||
| # cookies on our own. | ||
| # Session cookies may be important for cookies-based authentication, | ||
| # e.g. usually, when user does not check 'Remember me' check box while | ||
| # logging in on a site, some important cookies are stored as session | ||
| # cookies so that not recognizing them will result in failed login. | ||
| # 1. https://bugs.python.org/issue17164 | ||
| for cookie in self.cookies: | ||
| # Treat `expires=0` cookies as session cookies | ||
| if cookie.expires == 0: | ||
| cookie.expires = None | ||
| cookie.discard = True | ||
|
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||
| cookie_handler = urllib2.HTTPCookieProcessor(self.cookies) | ||
| redirect_handler = urllib2.HTTPRedirectHandler() | ||
| self.opener = urllib2.build_opener(cookie_handler, redirect_handler) | ||
| else: | ||
| self.opener = urllib2.build_opener() | ||
|
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| def quit(self): | ||
| self.driver.quit() | ||
| self.driver = None | ||
|
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| def load_cookies(self): | ||
| for cookie in self.cookies: | ||
| # Setting domain to None automatically instructs most webdrivers to use the domain of the current window | ||
| # handle | ||
| cookie_dict = {'domain': None, 'name': cookie.name, 'value': cookie.value, 'secure': cookie.secure} | ||
| if cookie.expires: | ||
| cookie_dict['expiry'] = cookie.expires | ||
| if cookie.path_specified: | ||
| cookie_dict['path'] = cookie.path | ||
|
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| self.driver.add_cookie(cookie_dict) | ||
|
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| # Selenium | ||
| def driver_get(self, url): | ||
| self.driver.get(url) | ||
| self.load_cookies() | ||
| self.driver.get(url) | ||
|
|
||
| # urllib2 | ||
| def urlopen(self, url): | ||
| return self.opener.open(url) | ||
|
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| def get_html(self): | ||
| return self.driver.execute_script("return document.documentElement.outerHTML") | ||
|
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||
| @staticmethod | ||
| def get_more_link(soup, base): | ||
| element = soup.find('a', class_='more_notes_link') | ||
| if not element: | ||
| return None | ||
| onclick = element.get_attribute_list('onclick')[0] | ||
| return base + re.search(r";tumblrReq\.open\('GET','([^']+)'", onclick).group(1) | ||
|
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||
| @staticmethod | ||
| def append_notes(soup, list): | ||
| notes = soup.find('ol', class_='notes') | ||
| if notes is None: | ||
| raise RuntimeError('Unexpected HTML, perhaps you need cookies?') | ||
| notes = notes.find_all('li')[:-1] | ||
| for n in reversed(notes): | ||
| list.append(n.prettify()) | ||
|
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| def get_notes(self, url): | ||
| parsed_uri = urlparse.urlparse(url) | ||
| base = '{uri.scheme}://{uri.netloc}/'.format(uri=parsed_uri) | ||
|
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| self.driver_get(url) | ||
| html = self.get_html() | ||
| soup = BeautifulSoup(html, 'lxml') | ||
|
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| notes_list = [] | ||
| self.append_notes(soup, notes_list) | ||
|
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| while True: | ||
| more_link = self.get_more_link(soup, base) | ||
| if not more_link: | ||
| break | ||
| with self.urlopen(more_link) as response: | ||
| soup = BeautifulSoup(response, 'lxml') | ||
| self.append_notes(soup, notes_list) | ||
|
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| return u''.join(notes_list) |