YouTube provides that meta info panel when users search for really sensitive content like suicide (e.g. "blue whale").
It contains:
- an encouragement as title (e.g. "We are with you")
- a phone number as action
- details about how to call the phone number (e.g. availability)
- an url pointing to the website of an association
Also add a test that just checks if a meta info is properly extracted
These crisis resources are preventing search results to be returned. See
https://support.google.com/youtube/answer/10726080?hl=en for more info on them.
This commit changes search parameters to include the property allowing to show
search results.
YouTube returns sometimes videos inside channel search results. As we only want
results corresponding to the type we requested, this commits makes
YoutubeSearchExtractor ignoring non-requested search results we get, using the
extractor LinkHandler's first content filter value.
Also remove an unneeded exception throwing declaration in
YoutubeSearchExtractor.
This should make returned dates consistent between timezones and countries on
which the extractor is ran.
It was previously only set on YouTube Music search continuations.
For every InnerTube request:
- Always add a `request` object with the following properties:
- "internalExperimentFlags" set to an empty array;
- "useSsl" set to "true";
- "lockedSafetyMode" set to "false".
- Use proper TODO comment to provide a way to enable restricted mode on every
request and add it on requests on which it wasn't present.
For YouTube Music:
- Remove alt query parameter, as it is not used anymore by the website;
- Add prettyPrint query parameter with false value on YouTube Music search
continuations.
The signature timestamp is used as a number by HTML5 clients, so it should be
used in the same way by the extractor too instead of being a string.
As the timestamp doesn't seem to exceed 5 digits, an integer is used to store
its value.
This commit is introducing breaking changes.
For clients, everything is managed in a new class called
YoutubeJavaScriptPlayerManager:
- caching JavaScript base player code and its extracted code (functions and
variables);
- getting player signature timestamp;
- getting deobfuscated signatures of streaming URLs;
- getting streaming URLs with a throttling parameter deobfuscated, if
applicable.
The class delegates the extraction parts to external package-private classes:
- YoutubeJavaScriptExtractor, to extract and download YouTube's JavaScript base
player code: it always already present before and has been edited to mainly
remove the previous caching system and made it package-private;
- YoutubeSignatureUtils, for player signature timestamp and signature
deobfuscation function of streaming URLs, added in a recent commit;
- YoutubeThrottlingParameterUtils, which was originally
YoutubeThrottlingDecrypter, for throttling parameter of streaming URLs
deobfuscation function and checking whether this parameter is in a streaming
URL.
YoutubeJavaScriptPlayerManager caches and then runs the extracted code if it
has been executed successfully. The cache system of throttling parameters
deobfuscated values has been kept, its size can be get using the
getThrottlingParametersCacheSize method and can be cleared independently using
the clearThrottlingParametersCache method.
If an exception occurs during the extraction or the parsing of a function
property which is not related to JavaScript base player code fetching, it is
stored until caches are cleared, making subsequent failing extraction calls of
the requested function or property faster and consuming less resources, as the
result should be the same until the base player code changes.
All caches can be reset using the clearAllCaches method of
YoutubeJavaScriptPlayerManager.
Classes using JavaScript base player code and utilities directly (in the code
and its tests) have been also updated in this commit.
The goal of this class is to decouple the extraction of signature timestamp and
signature deobfuscation function from YoutubeStreamExtractor.
The extraction of the signature deobfuscation function has been also adapted to
support the latest YouTube player versions.
This new class, YoutubeSignatureUtils, doens't store anything temporary such as
a copy of the player code, which has to be passed where required. It is not
public, as it will be used by a JavaScript player manager class in the future,
in order to handle in a better way fetching, caching and resetting cache of the
player code.
Splitting YoutubeMusicSearchExtractor's InfoItemExtractors into separate
classes (YoutubeMusicSongOrVideoInfoItemExtractor,
YoutubeMusicAlbumOrPlaylistInfoItemExtractor and
YoutubeMusicArtistInfoItemExtractor) allows to simplify
YoutubeMusicSearchExtractor,improves reading and applying changes to InfoItems
(no more losing at least quarter of a line due to indentations).
These InfoItems, in which the image changes have been applied, don't extend the
YouTube ones anymore, as most methods were overridden and the few ones that are
not don't apply in YouTube Music items responses, so it was useless to extend
them.
The code of YoutubeMusicSearchExtractor have been also improved a bit.
Unmodifiable lists of Images are returned, parsed from a given YouTube
"thumbnails" JSON array.
These methods will be used in all YouTube extractors and InfoItems, as the
structures between content types (videos, channels, playlists, ...) are common.
The addition of this support required to turn the isCarouselHeader boolean into
an enum containing all supported channel headers named HeaderType.
Also assert that the page has been fetched where needed to avoid
NullPointerExceptions when the channel page has been not fetched and remove the
getChannelHeaderJson method in YoutubeChannelExtractor, method for which its
code has been moved to its sole usage after the new headers support changes.
Note that this introduces a "Raw use of parameterized class 'InfoItemsPage'" warning, but it can be ignored since the type missing would be <InfoItem>, and StreamInfoItem extends InfoItem
Support of tags and videos, shorts, live, playlists and channels tabs has been
added for non-age restricted channels.
Age-restricted channels are now also supported and always returned the videos,
shorts and live tabs, accessible using system playlists. These tabs are the
only ones which can be accessed using YouTube's desktop website without being
logged-in.
The videos channel tab parameter has been updated to the one used by the
desktop website and when a channel extraction is fetched, this tab is returned
in the list of tabs as a cached one in the corresponding link handler.
Visitor data support per request has been added, as a valid visitor data is
required to fetch continuations with contents on the shorts tab. It is only
used in this case to enhance privacy.
A dedicated shorts UI elements (reelItemRenderers) extractor has been added,
YoutubeReelInfoItemExtractor. These elements do not provide the exact view
count, any uploader info (name, URL, avatar, verified status) and the upload
date.
All service's LinkHandlers are now using the singleton pattern and some code
has been also improved on the files changed.
Co-authored-by: ThetaDev <t.testboy@gmail.com>
Co-authored-by: Stypox <stypox@pm.me>
- Enhance documentation;
- Fix the regular expression fallback on HTML embed watch page;
- Use HTML scripts tag search first instead of the regular expression approach,
now used as a last resort;
- Compile regular expressions only once, in order to improve the performance of
subsequent extraction calls when clearing the cache;
- Provide original exceptions when fetching or parsing pages on which the base
JavaScript's player could be found failed, allowing clients to detect network
errors when they are the cause of the failures for instance;
- Remove delegate method which was not taking a video ID and hardcoding one, as
we can provide the video ID in all cases or do not provide a video ID at worse;
- Rename and make extraction methods package-private, as they are not intended
to be used publicly.
These breaking internal changes have been applied where needed, in
YoutubeJavaScriptExtractorTest and YoutubeStreamExtractor (in which an unneeded
initStsFromPlayerJsIfNeeded call have been removed).
These parameters are the only ones currently known to bypass 403 HTTP issues
related to failure of passing Android client integrity checks, as the ones of
stories (and the base of the shorts ones) do not work anymore, which may be
related to end of this format on the service.
Stypox
TobiGr
petlyh
AudricV
FineFindus
Youssif Shaaban Alsager
Christian
Kavin