From da57ebaf84225240b356530cdf02d12596f0dce8 Mon Sep 17 00:00:00 2001 From: Tithen-Firion Date: Tue, 25 Apr 2017 01:06:14 +0200 Subject: [PATCH] [openload] separate PhantomJS code from extractor --- youtube_dl/extractor/openload.py | 78 ++++------------- youtube_dl/utils.py | 141 +++++++++++++++++++++++++++++++ 2 files changed, 157 insertions(+), 62 deletions(-) diff --git a/youtube_dl/extractor/openload.py b/youtube_dl/extractor/openload.py index 789bf997e..ac5e0bb08 100644 --- a/youtube_dl/extractor/openload.py +++ b/youtube_dl/extractor/openload.py @@ -1,17 +1,14 @@ # coding: utf-8 from __future__ import unicode_literals -import os import re -import subprocess -import tempfile from .common import InfoExtractor from ..utils import ( - check_executable, determine_ext, - encodeArgument, ExtractorError, + get_element_by_id, + PhantomJSwrapper, ) @@ -62,38 +59,7 @@ class OpenloadIE(InfoExtractor): 'only_matching': True, }] - _PHANTOMJS_SCRIPT = r''' - phantom.onError = function(msg, trace) { - var msgStack = ['PHANTOM ERROR: ' + msg]; - if(trace && trace.length) { - msgStack.push('TRACE:'); - trace.forEach(function(t) { - msgStack.push(' -> ' + (t.file || t.sourceURL) + ': ' + t.line - + (t.function ? ' (in function ' + t.function +')' : '')); - }); - } - console.error(msgStack.join('\n')); - phantom.exit(1); - }; - var page = require('webpage').create(); - page.settings.resourceTimeout = 10000; - page.onInitialized = function() { - page.evaluate(function() { - delete window._phantom; - delete window.callPhantom; - }); - }; - page.open('https://openload.co/embed/%s/', function(status) { - var info = page.evaluate(function() { - return { - decoded_id: document.getElementById('streamurl').innerHTML, - title: document.querySelector('meta[name="og:title"],' - + 'meta[name=description]').content - }; - }); - console.log(info.decoded_id + ' ' + info.title); - phantom.exit(); - });''' + _USER_AGENT = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36' @staticmethod def _extract_urls(webpage): @@ -102,40 +68,27 @@ class OpenloadIE(InfoExtractor): webpage) def _real_extract(self, url): - exe = check_executable('phantomjs', ['-v']) - if not exe: - raise ExtractorError('PhantomJS executable not found in PATH, ' - 'download it from http://phantomjs.org', - expected=True) - video_id = self._match_id(url) url = 'https://openload.co/embed/%s/' % video_id - webpage = self._download_webpage(url, video_id) + headers = { + 'User-Agent': self._USER_AGENT, + } + + phantom = PhantomJSwrapper(self) + webpage, _ = phantom.get(url, video_id=video_id, headers=headers) if 'File not found' in webpage or 'deleted by the owner' in webpage: raise ExtractorError('File not found', expected=True, video_id=video_id) - script_file = tempfile.NamedTemporaryFile(mode='w', delete=False) - - # write JS script to file and close it - with script_file: - script_file.write(self._PHANTOMJS_SCRIPT % video_id) - - self.to_screen('%s: Decoding video ID with PhantomJS' % video_id) - - p = subprocess.Popen([exe, '--ssl-protocol=any', script_file.name], - stdout=subprocess.PIPE, stderr=subprocess.PIPE) - output, err = p.communicate() - if p.returncode != 0: - raise ExtractorError('Decoding failed\n:' - + encodeArgument(err)) - else: - decoded_id, title = encodeArgument(output).strip().split(' ', 1) - - os.remove(script_file.name) + decoded_id = get_element_by_id('streamurl', webpage) video_url = 'https://openload.co/stream/%s?mime=true' % decoded_id + title = self._og_search_title(webpage, default=None) or self._search_regex( + r']+class=["\']title["\'][^>]*>([^<]+)', webpage, + 'title', default=None) or self._html_search_meta( + 'description', webpage, 'title', fatal=True) + entries = self._parse_html5_media_entries(url, webpage, video_id) entry = entries[0] if entries else {} subtitles = entry.get('subtitles') @@ -148,5 +101,6 @@ class OpenloadIE(InfoExtractor): # Seems all videos have extensions in their titles 'ext': determine_ext(title, 'mp4'), 'subtitles': subtitles, + 'http_headers': headers, } return info_dict diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py index 2340bc306..94e1b07a6 100644 --- a/youtube_dl/utils.py +++ b/youtube_dl/utils.py @@ -3652,3 +3652,144 @@ def write_xattr(path, key, value): "Couldn't find a tool to set the xattrs. " "Install either the python 'xattr' module, " "or the 'xattr' binary.") + + +class PhantomJSwrapper(object): + """PhantomJS wrapper class""" + + _TEMPLATE = r''' + phantom.onError = function(msg, trace) {{ + var msgStack = ['PHANTOM ERROR: ' + msg]; + if(trace && trace.length) {{ + msgStack.push('TRACE:'); + trace.forEach(function(t) {{ + msgStack.push(' -> ' + (t.file || t.sourceURL) + ': ' + t.line + + (t.function ? ' (in function ' + t.function +')' : '')); + }}); + }} + console.error(msgStack.join('\n')); + phantom.exit(1); + }}; + var page = require('webpage').create(); + var fs = require('fs'); + var read = {{ mode: 'r', charset: 'utf-8' }}; + var write = {{ mode: 'w', charset: 'utf-8' }}; + page.settings.resourceTimeout = {timeout}; + page.settings.userAgent = "{ua}"; + page.onLoadStarted = function() {{ + page.evaluate(function() {{ + delete window._phantom; + delete window.callPhantom; + }}); + }}; + var saveAndExit = function() {{ + fs.write("{html}", page.content, write); + phantom.exit(); + }}; + page.onLoadFinished = function(status) {{ + if(page.url === "") {{ + page.setContent(fs.read("{html}", read), "{url}"); + }} + else {{ + {jscode} + }} + }}; + page.open(""); + ''' + + _TMP_FILE_NAMES = ['script', 'html'] + + def __init__(self, extractor, timeout=10000): + self.exe = check_executable('phantomjs', ['-v']) + if not self.exe: + raise ExtractorError('PhantomJS executable not found in PATH, ' + 'download it from http://phantomjs.org', + expected=True) + self.extractor = extractor + self.options = { + 'timeout': timeout, + } + self._TMP_FILES = {} + for name in self._TMP_FILE_NAMES: + tmp = tempfile.NamedTemporaryFile(delete=False) + tmp.close() + self._TMP_FILES[name] = tmp + + def __del__(self): + for name in self._TMP_FILE_NAMES: + try: + os.remove(self._TMP_FILES[name].name) + except: + pass + + def get(self, url, html=None, video_id=None, note=None, note2='Executing JS on webpage', headers={}, jscode='saveAndExit();'): + """ + Downloads webpage (if needed) and executes JS + + Params: + url: website url + html: optional, html code of website + video_id: video id + note: optional, displayed when downloading webpage + note2: optional, displayed when executing JS + headers: custom http headers + jscode: code to be executed when page is loaded + + Returns tuple with: + * downloaded website (after JS execution) + * anything you print with `console.log` (but not inside `page.execute`!) + + In most cases you don't need to add any `jscode`. + It is executed in `page.onLoadFinished`. + `saveAndExit();` is mandatory, use it instead of `phantom.exit()` + It is possible to wait for some element on the webpage, for example: + var check = function() { + var elementFound = page.evaluate(function() { + return document.querySelector('#b.done') !== null; + }); + if(elementFound) + saveAndExit(); + else + window.setTimeout(check, 500); + } + + page.evaluate(function(){ + document.querySelector('#a').click(); + }); + check(); + """ + if 'saveAndExit();' not in jscode: + raise ExtractorError('`saveAndExit();` not found in `jscode`') + if not html: + html = self.extractor._download_webpage(url, video_id, note=note, headers=headers) + with open(self._TMP_FILES['html'].name, 'wb') as f: + f.write(html.encode('utf-8')) + + replaces = self.options + replaces['url'] = url + user_agent = headers.get('User-Agent') or std_headers['User-Agent'] + replaces['ua'] = user_agent.replace('"', '\\"') + replaces['jscode'] = jscode + + for x in self._TMP_FILE_NAMES: + replaces[x] = self._TMP_FILES[x].name.replace('\\', '\\\\').replace('"', '\\"') + + with open(self._TMP_FILES['script'].name, 'wb') as f: + f.write(self._TEMPLATE.format(**replaces).encode('utf-8')) + + if video_id is None: + self.extractor.to_screen('%s' % (note2,)) + else: + self.extractor.to_screen('%s: %s' % (video_id, note2)) + + p = subprocess.Popen([self.exe, '--ssl-protocol=any', + self._TMP_FILES['script'].name], stdout=subprocess.PIPE, + stderr=subprocess.PIPE) + out, err = p.communicate() + if p.returncode != 0: + raise ExtractorError('Executing JS failed\n:' + + encodeArgument(err)) + with open(self._TMP_FILES['html'].name, 'rb') as f: + html = f.read().decode('utf-8') + return (html, encodeArgument(out)) +