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Code Issues Projects Releases Wiki Activity

fix(youtube/client-spoof): use new visitor data to work around playback issues

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See 81ca451480
This commit is contained in:
oSumAtrIX 2023-06-22 00:58:56 +02:00
parent 4f66d05573
commit be9c948ce6
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GPG Key ID: A9B3094ACDB604B4
1 changed files with 21 additions and 10 deletions
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31
app/src/main/java/app/revanced/integrations/patches/SpoofSignatureVerificationPatch.java
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@ -1,16 +1,20 @@
package app.revanced.integrations.patches;
import static app.revanced.integrations.utils.ReVancedUtils.containsAny;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import app.revanced.integrations.settings.SettingsEnum;
import app.revanced.integrations.shared.PlayerType;
import app.revanced.integrations.utils.LogHelper;
import app.revanced.integrations.utils.ReVancedUtils;
import static app.revanced.integrations.utils.ReVancedUtils.containsAny;
public class SpoofSignatureVerificationPatch {
/**
* Enable/disable all workarounds that are required due to signature spoofing.
*/
private static final boolean WORKAROUND = true;
/**
* Protobuf parameters used for autoplay in scrim.
* Prepend this parameter to mute video playback (for autoplay in feed)
@ -18,10 +22,12 @@ public class SpoofSignatureVerificationPatch {
private static final String PROTOBUF_PARAMETER_SCRIM = "SAFgAXgB";
/**
* Protobuf parameter of shorts and YouTube stories.
* Protobuf parameter also used by
* <a href="https://github.com/yt-dlp/yt-dlp/blob/81ca451480051d7ce1a31c017e005358345a9149/yt_dlp/extractor/youtube.py#L3602">yt-dlp</a>
* <br>
* Known issue: captions are positioned on upper area in the player.
*/
private static final String PROTOBUF_PARAMETER_SHORTS = "8AEB"; // "8AEByAMTuAQP"
private static final String PROTOBUF_PLAYER_PARAMS = "CgIQBg==";
/**
* Target Protobuf parameters.
@ -66,17 +72,18 @@ public class SpoofSignatureVerificationPatch {
LogHelper.printDebug(() -> "Original protobuf parameter value: " + originalValue);
// Video is Short or Story.
var isPlayingShorts = originalValue.contains(PROTOBUF_PARAMETER_SHORTS);
if (isPlayingShorts) return originalValue;
if (!WORKAROUND) return PROTOBUF_PLAYER_PARAMS;
var isPlayingVideo = originalValue.contains(PROTOBUF_PLAYER_PARAMS);
if (isPlayingVideo) return originalValue;
boolean isPlayingFeed = containsAny(originalValue, PROTOBUF_PARAMETER_TARGETS) && PlayerType.getCurrent() == PlayerType.INLINE_MINIMAL;
if (isPlayingFeed) {
// Videos in feed won't autoplay with sound.
return PROTOBUF_PARAMETER_SCRIM + PROTOBUF_PARAMETER_SHORTS;
return PROTOBUF_PARAMETER_SCRIM + PROTOBUF_PLAYER_PARAMS;
} else {
// Spoof the parameter to prevent playback issues.
return PROTOBUF_PARAMETER_SHORTS;
return PROTOBUF_PLAYER_PARAMS;
}
} catch (Exception ex) {
LogHelper.printException(() -> "overrideProtobufParameter failure", ex);
@ -143,6 +150,10 @@ public class SpoofSignatureVerificationPatch {
}
}
if (!WORKAROUND) {
return new int[]{ap, ah, av};
}
// Videos with custom captions that specify screen positions appear to always have correct screen positions (even with spoofing).
// But for auto generated and most other captions, the spoof incorrectly gives various default Shorts caption settings.
// Check for these known default shorts captions parameters, and replace with the known correct values.