Replace PhantomJS with Node.js sandbox
PhantomJS is unmaintained and depends on the deprecated QtWebKit.
This commit is contained in:
Unrud
parent
7d53fa475a
commit
ad32b52756
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@ -95,7 +95,7 @@ from .utils import (
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)
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from .cache import Cache
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from .extractor import get_info_extractor, gen_extractor_classes, _LAZY_LOADER
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from .extractor.openload import PhantomJSwrapper
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from .extractor.openload import NodejsWrapper
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from .downloader import get_suitable_downloader
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from .downloader.rtmp import rtmpdump_version
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from .postprocessor import (
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@ -2285,7 +2285,7 @@ class YoutubeDL(object):
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exe_versions = FFmpegPostProcessor.get_versions(self)
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exe_versions['rtmpdump'] = rtmpdump_version()
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exe_versions['phantomjs'] = PhantomJSwrapper._version()
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exe_versions['nodejs'] = NodejsWrapper.version()
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exe_str = ', '.join(
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'%s %s' % (exe, v)
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for exe, v in sorted(exe_versions.items())
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@ -1,238 +1,50 @@
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# coding: utf-8
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from __future__ import unicode_literals
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import json
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import os
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import base64
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import subprocess
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import tempfile
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from ..compat import (
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compat_urlparse,
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compat_kwargs,
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)
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from ..utils import (
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check_executable,
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encodeArgument,
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ExtractorError,
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get_exe_version,
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is_outdated_version,
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std_headers,
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)
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def cookie_to_dict(cookie):
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cookie_dict = {
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'name': cookie.name,
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'value': cookie.value,
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}
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if cookie.port_specified:
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cookie_dict['port'] = cookie.port
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if cookie.domain_specified:
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cookie_dict['domain'] = cookie.domain
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if cookie.path_specified:
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cookie_dict['path'] = cookie.path
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if cookie.expires is not None:
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cookie_dict['expires'] = cookie.expires
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if cookie.secure is not None:
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cookie_dict['secure'] = cookie.secure
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if cookie.discard is not None:
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cookie_dict['discard'] = cookie.discard
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try:
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if (cookie.has_nonstandard_attr('httpOnly')
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or cookie.has_nonstandard_attr('httponly')
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or cookie.has_nonstandard_attr('HttpOnly')):
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cookie_dict['httponly'] = True
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except TypeError:
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pass
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return cookie_dict
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def cookie_jar_to_list(cookie_jar):
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return [cookie_to_dict(cookie) for cookie in cookie_jar]
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class PhantomJSwrapper(object):
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"""PhantomJS wrapper class
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This class is experimental.
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"""
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_TEMPLATE = r'''
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phantom.onError = function(msg, trace) {{
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var msgStack = ['PHANTOM ERROR: ' + msg];
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if(trace && trace.length) {{
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msgStack.push('TRACE:');
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trace.forEach(function(t) {{
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msgStack.push(' -> ' + (t.file || t.sourceURL) + ': ' + t.line
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+ (t.function ? ' (in function ' + t.function +')' : ''));
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}});
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}}
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console.error(msgStack.join('\n'));
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phantom.exit(1);
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}};
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var page = require('webpage').create();
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var fs = require('fs');
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var read = {{ mode: 'r', charset: 'utf-8' }};
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var write = {{ mode: 'w', charset: 'utf-8' }};
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JSON.parse(fs.read("{cookies}", read)).forEach(function(x) {{
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phantom.addCookie(x);
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}});
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page.settings.resourceTimeout = {timeout};
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page.settings.userAgent = "{ua}";
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page.onLoadStarted = function() {{
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page.evaluate(function() {{
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delete window._phantom;
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delete window.callPhantom;
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}});
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}};
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var saveAndExit = function() {{
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fs.write("{html}", page.content, write);
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fs.write("{cookies}", JSON.stringify(phantom.cookies), write);
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phantom.exit();
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}};
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page.onLoadFinished = function(status) {{
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if(page.url === "") {{
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page.setContent(fs.read("{html}", read), "{url}");
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}}
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else {{
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{jscode}
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}}
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}};
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page.open("");
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'''
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_TMP_FILE_NAMES = ['script', 'html', 'cookies']
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class NodejsWrapper(object):
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"""Node.js wrapper class"""
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@staticmethod
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def _version():
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return get_exe_version('phantomjs', version_re=r'([0-9.]+)')
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def version():
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return get_exe_version('nodejs', version_re=r'([0-9.]+)')
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def __init__(self, extractor, required_version=None, timeout=10000):
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self._TMP_FILES = {}
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self.exe = check_executable('phantomjs', ['-v'])
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def __init__(self):
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self.exe = check_executable('nodejs', ['-v'])
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if not self.exe:
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raise ExtractorError('PhantomJS executable not found in PATH, '
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'download it from http://phantomjs.org',
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raise ExtractorError('Node.js executable not found in PATH, '
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'download it from http://nodejs.org',
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expected=True)
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self.extractor = extractor
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if required_version:
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version = self._version()
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if is_outdated_version(version, required_version):
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self.extractor._downloader.report_warning(
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'Your copy of PhantomJS is outdated, update it to version '
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'%s or newer if you encounter any errors.' % required_version)
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self.options = {
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'timeout': timeout,
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}
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for name in self._TMP_FILE_NAMES:
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tmp = tempfile.NamedTemporaryFile(delete=False)
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tmp.close()
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self._TMP_FILES[name] = tmp
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def __del__(self):
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for name in self._TMP_FILE_NAMES:
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try:
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os.remove(self._TMP_FILES[name].name)
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except (IOError, OSError, KeyError):
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pass
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def _save_cookies(self, url):
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cookies = cookie_jar_to_list(self.extractor._downloader.cookiejar)
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for cookie in cookies:
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if 'path' not in cookie:
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cookie['path'] = '/'
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if 'domain' not in cookie:
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cookie['domain'] = compat_urlparse.urlparse(url).netloc
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with open(self._TMP_FILES['cookies'].name, 'wb') as f:
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f.write(json.dumps(cookies).encode('utf-8'))
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def _load_cookies(self):
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with open(self._TMP_FILES['cookies'].name, 'rb') as f:
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cookies = json.loads(f.read().decode('utf-8'))
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for cookie in cookies:
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if cookie['httponly'] is True:
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cookie['rest'] = {'httpOnly': None}
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if 'expiry' in cookie:
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cookie['expire_time'] = cookie['expiry']
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self.extractor._set_cookie(**compat_kwargs(cookie))
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def get(self, url, html=None, video_id=None, note=None, note2='Executing JS on webpage', headers={}, jscode='saveAndExit();'):
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def run_in_sandbox(self, jscode, timeout=10000):
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"""
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Downloads webpage (if needed) and executes JS
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Executes JS in a sandbox
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Params:
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url: website url
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html: optional, html code of website
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video_id: video id
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note: optional, displayed when downloading webpage
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note2: optional, displayed when executing JS
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headers: custom http headers
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jscode: code to be executed when page is loaded
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jscode: code to be executed
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timeout: number of milliseconds before execution is cancelled
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Returns tuple with:
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* downloaded website (after JS execution)
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* anything you print with `console.log` (but not inside `page.execute`!)
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In most cases you don't need to add any `jscode`.
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It is executed in `page.onLoadFinished`.
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`saveAndExit();` is mandatory, use it instead of `phantom.exit()`
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It is possible to wait for some element on the webpage, for example:
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var check = function() {
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var elementFound = page.evaluate(function() {
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return document.querySelector('#b.done') !== null;
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});
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if(elementFound)
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saveAndExit();
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else
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window.setTimeout(check, 500);
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}
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page.evaluate(function(){
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document.querySelector('#a').click();
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});
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check();
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"""
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if 'saveAndExit();' not in jscode:
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raise ExtractorError('`saveAndExit();` not found in `jscode`')
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if not html:
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html = self.extractor._download_webpage(url, video_id, note=note, headers=headers)
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with open(self._TMP_FILES['html'].name, 'wb') as f:
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f.write(html.encode('utf-8'))
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self._save_cookies(url)
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replaces = self.options
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replaces['url'] = url
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user_agent = headers.get('User-Agent') or std_headers['User-Agent']
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replaces['ua'] = user_agent.replace('"', '\\"')
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replaces['jscode'] = jscode
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for x in self._TMP_FILE_NAMES:
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replaces[x] = self._TMP_FILES[x].name.replace('\\', '\\\\').replace('"', '\\"')
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with open(self._TMP_FILES['script'].name, 'wb') as f:
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f.write(self._TEMPLATE.format(**replaces).encode('utf-8'))
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if video_id is None:
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self.extractor.to_screen('%s' % (note2,))
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else:
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self.extractor.to_screen('%s: %s' % (video_id, note2))
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p = subprocess.Popen([
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self.exe, '--ssl-protocol=any',
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self._TMP_FILES['script'].name
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], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = p.communicate()
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jscode_wrapper = (
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'const vm = require("vm");'
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'const jscode = Buffer.from("{jscode_b64}", "base64").toString("binary");'
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'const options = {{timeout: {timeout:d}}};'
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'process.stdout.write(String(vm.runInNewContext(jscode, {{}}, options)));').format(
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jscode_b64=base64.b64encode(jscode.encode('utf-8')).decode(),
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timeout=timeout)
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args = [encodeArgument(a) for a in [self.exe, '-e', jscode_wrapper]]
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p = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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stdout, stderr = p.communicate()
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if p.returncode != 0:
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raise ExtractorError(
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'Executing JS failed\n:' + encodeArgument(err))
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with open(self._TMP_FILES['html'].name, 'rb') as f:
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html = f.read().decode('utf-8')
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self._load_cookies()
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return (html, encodeArgument(out))
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raise ExtractorError(stderr.decode('utf-8', 'replace'))
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return stdout.decode('utf-8')
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@ -11,8 +11,9 @@ from ..compat import (
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compat_HTTPError,
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compat_str,
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compat_urllib_request,
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compat_urlparse,
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)
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from .openload import PhantomJSwrapper
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from .openload import NodejsWrapper
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from ..utils import (
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determine_ext,
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ExtractorError,
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@ -31,16 +32,26 @@ class PornHubBaseIE(InfoExtractor):
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webpage, urlh = dl(*args, **kwargs)
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if any(re.search(p, webpage) for p in (
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r'<body\b[^>]+\bonload=["\']go\(\)',
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r'document\.cookie\s*=\s*["\']RNKEY=',
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r'document\.location\.reload\(true\)')):
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if re.search(r'<body\b[^>]+\bonload=["\']go\(\)', webpage):
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url_or_request = args[0]
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url = (url_or_request.get_full_url()
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if isinstance(url_or_request, compat_urllib_request.Request)
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else url_or_request)
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phantom = PhantomJSwrapper(self, required_version='2.0')
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phantom.get(url, html=webpage)
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domain = compat_urlparse.urlparse(url).netloc
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jscode = self._search_regex(
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r'<script[^>]*>(?P<script>.*?function go\(\).*?)</script>',
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webpage, 'jscode', flags=re.DOTALL, group='script')
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self.to_screen('Executing JS on webpage')
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cookie = NodejsWrapper().run_in_sandbox((
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'let document = {{location:{{reload: function() {{}}}}}};'
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'{jscode};//*/\n'
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'go();'
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'document.cookie').format(jscode=jscode))
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cookie_name = cookie.split("=")[0].strip()
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if cookie_name != 'RNKEY':
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raise ExtractorError('Unexpected cookie name %r' % cookie_name)
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cookie_value = cookie[len(cookie_name) + 1:].split(";")[0].strip()
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self._set_cookie(domain, cookie_name, cookie_value)
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webpage, urlh = dl(*args, **kwargs)
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return webpage, urlh
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