org.schabi.newpipe.extractor.services.youtube

Class YoutubeJavaScriptExtractor

java.lang.Object

org.schabi.newpipe.extractor.services.youtube.YoutubeJavaScriptExtractor

public final class YoutubeJavaScriptExtractor
extends Object

YouTube restricts streaming their media in multiple ways by requiring clients to apply a cipher function on parameters of requests. The cipher function is sent alongside as a JavaScript function.

This class handling fetching the JavaScript file in order to allow other classes to extract the needed functions.

Method Summary

Modifier and Type	Method and Description
static String	extractJavaScriptCode() Same as extractJavaScriptCode(String) but with a constant value for videoId.
static String	extractJavaScriptCode(String videoId) Extracts the JavaScript file.
static String	extractJavaScriptUrl()
static String	extractJavaScriptUrl(String videoId)
static void	resetJavaScriptCode() Reset the JavaScript code.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

extractJavaScriptCode

@Nonnull
public static String extractJavaScriptCode(String videoId)
                                             throws ParsingException

Extracts the JavaScript file. The result is cached, so subsequent calls use the result of previous calls.

Parameters:

videoId - Does not influence the result, but a valid video id may help in the chance that YouTube tracks it.

Returns:

The whole JavaScript file as a string.

Throws:

ParsingException - If the extraction failed.

extractJavaScriptCode

@Nonnull
public static String extractJavaScriptCode()
                                             throws ParsingException

Same as extractJavaScriptCode(String) but with a constant value for videoId. Possible because the videoId has no influence on the result.

In the off chance that YouTube tracks with which video id the request is made, it may make sense to pass in video ids.

Throws:

ParsingException

resetJavaScriptCode

public static void resetJavaScriptCode()

Reset the JavaScript code. It will be fetched again the next time extractJavaScriptCode() or extractJavaScriptCode(String) is called.

extractJavaScriptUrl

public static String extractJavaScriptUrl()
                                   throws ParsingException

Throws:

ParsingException

extractJavaScriptUrl

public static String extractJavaScriptUrl(String videoId)
                                   throws ParsingException

Throws:

ParsingException