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https://github.com/yt-dlp/yt-dlp.git
synced 2024-09-06 02:49:35 +02:00
[openload] separate PhantomJS code from extractor
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@ -1,17 +1,14 @@
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# coding: utf-8
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from __future__ import unicode_literals
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import os
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import re
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import subprocess
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import tempfile
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from .common import InfoExtractor
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from ..utils import (
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check_executable,
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determine_ext,
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encodeArgument,
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ExtractorError,
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get_element_by_id,
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PhantomJSwrapper,
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)
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@ -62,38 +59,7 @@ class OpenloadIE(InfoExtractor):
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'only_matching': True,
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}]
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_PHANTOMJS_SCRIPT = 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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page.settings.resourceTimeout = 10000;
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page.onInitialized = 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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page.open('https://openload.co/embed/%s/', function(status) {
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var info = page.evaluate(function() {
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return {
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decoded_id: document.getElementById('streamurl').innerHTML,
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title: document.querySelector('meta[name="og:title"],'
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+ 'meta[name=description]').content
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};
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});
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console.log(info.decoded_id + ' ' + info.title);
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phantom.exit();
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});'''
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_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'
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@staticmethod
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def _extract_urls(webpage):
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@ -102,40 +68,27 @@ def _extract_urls(webpage):
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webpage)
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def _real_extract(self, url):
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exe = check_executable('phantomjs', ['-v'])
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if not 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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expected=True)
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video_id = self._match_id(url)
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url = 'https://openload.co/embed/%s/' % video_id
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webpage = self._download_webpage(url, video_id)
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headers = {
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'User-Agent': self._USER_AGENT,
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}
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phantom = PhantomJSwrapper(self)
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webpage, _ = phantom.get(url, video_id=video_id, headers=headers)
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if 'File not found' in webpage or 'deleted by the owner' in webpage:
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raise ExtractorError('File not found', expected=True, video_id=video_id)
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script_file = tempfile.NamedTemporaryFile(mode='w', delete=False)
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# write JS script to file and close it
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with script_file:
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script_file.write(self._PHANTOMJS_SCRIPT % video_id)
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self.to_screen('%s: Decoding video ID with PhantomJS' % video_id)
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p = subprocess.Popen([exe, '--ssl-protocol=any', script_file.name],
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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output, err = p.communicate()
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if p.returncode != 0:
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raise ExtractorError('Decoding failed\n:'
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+ encodeArgument(err))
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else:
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decoded_id, title = encodeArgument(output).strip().split(' ', 1)
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os.remove(script_file.name)
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decoded_id = get_element_by_id('streamurl', webpage)
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video_url = 'https://openload.co/stream/%s?mime=true' % decoded_id
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title = self._og_search_title(webpage, default=None) or self._search_regex(
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r'<span[^>]+class=["\']title["\'][^>]*>([^<]+)', webpage,
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'title', default=None) or self._html_search_meta(
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'description', webpage, 'title', fatal=True)
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entries = self._parse_html5_media_entries(url, webpage, video_id)
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entry = entries[0] if entries else {}
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subtitles = entry.get('subtitles')
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@ -148,5 +101,6 @@ def _real_extract(self, url):
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# Seems all videos have extensions in their titles
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'ext': determine_ext(title, 'mp4'),
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'subtitles': subtitles,
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'http_headers': headers,
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}
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return info_dict
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@ -3652,3 +3652,144 @@ def write_xattr(path, key, value):
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"Couldn't find a tool to set the xattrs. "
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"Install either the python 'xattr' module, "
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"or the 'xattr' binary.")
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class PhantomJSwrapper(object):
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"""PhantomJS wrapper class"""
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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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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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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']
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def __init__(self, extractor, timeout=10000):
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self.exe = check_executable('phantomjs', ['-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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expected=True)
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self.extractor = extractor
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self.options = {
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'timeout': timeout,
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}
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self._TMP_FILES = {}
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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:
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pass
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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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"""
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Downloads webpage (if needed) and executes JS
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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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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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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([self.exe, '--ssl-protocol=any',
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self._TMP_FILES['script'].name], stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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out, err = p.communicate()
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if p.returncode != 0:
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raise ExtractorError('Executing JS failed\n:'
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+ 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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return (html, encodeArgument(out))
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