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fix(YouTube - Spoof signature): Fix tracking such as history or watch…
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… time
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oSumAtrIX committed Mar 2, 2024
1 parent c22604a commit bcd8b48
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Showing 3 changed files with 88 additions and 20 deletions.
Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,8 @@ import app.revanced.patches.youtube.misc.playertype.PlayerTypeHookPatch
import app.revanced.patches.youtube.misc.settings.SettingsPatch
import app.revanced.patches.youtube.video.information.VideoInformationPatch
import app.revanced.patches.youtube.video.playerresponse.PlayerResponseMethodHookPatch
import app.revanced.util.exception
import app.revanced.util.*
import com.android.tools.smali.dexlib2.iface.instruction.FiveRegisterInstruction
import com.android.tools.smali.dexlib2.iface.instruction.OneRegisterInstruction
import com.android.tools.smali.dexlib2.iface.instruction.ReferenceInstruction

Expand All @@ -28,8 +29,8 @@ import com.android.tools.smali.dexlib2.iface.instruction.ReferenceInstruction
PlayerResponseMethodHookPatch::class,
VideoInformationPatch::class,
SpoofSignatureResourcePatch::class,
AddResourcesPatch::class
]
AddResourcesPatch::class,
],
)
object SpoofSignaturePatch : BytecodePatch(
setOf(
Expand All @@ -41,7 +42,9 @@ object SpoofSignaturePatch : BytecodePatch(
StoryboardRendererDecoderRecommendedLevelFingerprint,
StoryboardThumbnailParentFingerprint,
ScrubbedPreviewLayoutFingerprint,
)
StatsQueryParameterFingerprint,
ParamsMapPutFingerprint,
),
) {
private const val INTEGRATIONS_CLASS_DESCRIPTOR =
"Lapp/revanced/integrations/youtube/patches/spoof/SpoofSignaturePatch;"
Expand All @@ -55,14 +58,14 @@ object SpoofSignaturePatch : BytecodePatch(
preferences = setOf(
SwitchPreference("revanced_spoof_signature_verification_enabled"),
SwitchPreference("revanced_spoof_signature_in_feed_enabled"),
SwitchPreference("revanced_spoof_storyboard")
SwitchPreference("revanced_spoof_storyboard"),
),
)
),
)

// Hook the player parameters.
PlayerResponseMethodHookPatch += PlayerResponseMethodHookPatch.Hook.ProtoBufferParameter(
"$INTEGRATIONS_CLASS_DESCRIPTOR->spoofParameter(Ljava/lang/String;Z)Ljava/lang/String;"
"$INTEGRATIONS_CLASS_DESCRIPTOR->spoofParameter(Ljava/lang/String;Z)Ljava/lang/String;",
)

// Force the seekbar time and chapters to always show up.
Expand All @@ -72,7 +75,7 @@ object SpoofSignaturePatch : BytecodePatch(
StoryboardThumbnailFingerprint.also {
it.resolve(
context,
classDef
classDef,
)
}.result?.let {
val endIndex = it.scanResult.patternScanResult!!.endIndex
Expand All @@ -84,15 +87,15 @@ object SpoofSignaturePatch : BytecodePatch(
endIndex,
"""
invoke-static {}, $INTEGRATIONS_CLASS_DESCRIPTOR->getSeekbarThumbnailOverrideValue()Z
"""
""",
)
// Since this is end of the method must replace one line then add the rest.
it.mutableMethod.addInstructions(
endIndex + 1,
"""
move-result v0
return v0
"""
""",
)
} ?: throw StoryboardThumbnailFingerprint.exception
}
Expand All @@ -107,7 +110,7 @@ object SpoofSignaturePatch : BytecodePatch(
"""
iget-object v0, p0, $imageViewFieldName # copy imageview field to a register
invoke-static {v0}, $INTEGRATIONS_CLASS_DESCRIPTOR->seekbarImageViewCreated(Landroid/widget/ImageView;)V
"""
""",
)
}
} ?: throw ScrubbedPreviewLayoutFingerprint.exception
Expand All @@ -117,7 +120,7 @@ object SpoofSignaturePatch : BytecodePatch(
*/
arrayOf(
PlayerResponseModelImplGeneralFingerprint,
PlayerResponseModelImplLiveStreamFingerprint
PlayerResponseModelImplLiveStreamFingerprint,
).forEach { fingerprint ->
fingerprint.result?.let {
it.mutableMethod.apply {
Expand All @@ -130,7 +133,7 @@ object SpoofSignaturePatch : BytecodePatch(
"""
invoke-static { v$getStoryBoardRegister }, $INTEGRATIONS_CLASS_DESCRIPTOR->getStoryboardRendererSpec(Ljava/lang/String;)Ljava/lang/String;
move-result-object v$getStoryBoardRegister
"""
""",
)
}
} ?: throw fingerprint.exception
Expand All @@ -143,10 +146,11 @@ object SpoofSignaturePatch : BytecodePatch(
.getInstruction<OneRegisterInstruction>(moveOriginalRecommendedValueIndex).registerA

it.mutableMethod.addInstructions(
moveOriginalRecommendedValueIndex + 1, """
moveOriginalRecommendedValueIndex + 1,
"""
invoke-static { v$originalValueRegister }, $INTEGRATIONS_CLASS_DESCRIPTOR->getRecommendedLevel(I)I
move-result v$originalValueRegister
"""
""",
)
} ?: throw StoryboardRendererDecoderRecommendedLevelFingerprint.exception

Expand All @@ -158,10 +162,11 @@ object SpoofSignaturePatch : BytecodePatch(
getInstruction<OneRegisterInstruction>(moveOriginalRecommendedValueIndex).registerA

addInstructions(
moveOriginalRecommendedValueIndex, """
moveOriginalRecommendedValueIndex,
"""
invoke-static { v$originalValueRegister }, $INTEGRATIONS_CLASS_DESCRIPTOR->getRecommendedLevel(I)I
move-result v$originalValueRegister
"""
""",
)
}
} ?: throw PlayerResponseModelImplRecommendedLevelFingerprint.exception
Expand All @@ -177,7 +182,7 @@ object SpoofSignaturePatch : BytecodePatch(
invoke-static { p$storyBoardUrlParams }, $INTEGRATIONS_CLASS_DESCRIPTOR->getStoryboardRendererSpec(Ljava/lang/String;)Ljava/lang/String;
move-result-object p$storyBoardUrlParams
""",
ExternalLabel("ignore", getInstruction(0))
ExternalLabel("ignore", getInstruction(0)),
)
}
} ?: throw StoryboardRendererSpecFingerprint.exception
Expand All @@ -189,11 +194,43 @@ object SpoofSignaturePatch : BytecodePatch(
it.mutableMethod.getInstruction<OneRegisterInstruction>(storyBoardUrlIndex).registerA

it.mutableMethod.addInstructions(
storyBoardUrlIndex + 1, """
storyBoardUrlIndex + 1,
"""
invoke-static { v$storyboardUrlRegister }, $INTEGRATIONS_CLASS_DESCRIPTOR->getStoryboardDecoderRendererSpec(Ljava/lang/String;)Ljava/lang/String;
move-result-object v$storyboardUrlRegister
"""
""",
)
} ?: throw StoryboardRendererDecoderSpecFingerprint.exception

// Fix stats not being tracked.
// Due to signature spoofing "adformat" is present in query parameters made for /stats requests,
// even though, for regular videos, it should not be.
// This breaks stats tracking.
// Replace the ad parameter with the video parameter in the query parameters.
StatsQueryParameterFingerprint.result?.let {
val putMethod = ParamsMapPutFingerprint.result?.method?.toString()
?: throw ParamsMapPutFingerprint.exception

it.mutableMethod.apply {
val adParamIndex = it.scanResult.stringsScanResult!!.matches.first().index
val videoParamIndex = adParamIndex + 3

// Replace the ad parameter with the video parameter.
replaceInstruction(adParamIndex, getInstruction(videoParamIndex))

// Call paramsMap.put instead of paramsMap.putIfNotExist
// because the key is already present in the map.
val putAdParamIndex = adParamIndex + 1
val putIfKeyNotExistsInstruction = getInstruction<FiveRegisterInstruction>(putAdParamIndex)
replaceInstruction(
putAdParamIndex,
"invoke-virtual { " +
"v${putIfKeyNotExistsInstruction.registerC}, " +
"v${putIfKeyNotExistsInstruction.registerD}, " +
"v${putIfKeyNotExistsInstruction.registerE} }, " +
putMethod,
)
}
} ?: throw StatsQueryParameterFingerprint.exception
}
}
Original file line number Diff line number Diff line change
@@ -0,0 +1,24 @@
package app.revanced.patches.youtube.misc.fix.playback.fingerprints

import app.revanced.patcher.extensions.or
import app.revanced.patcher.fingerprint.MethodFingerprint
import com.android.tools.smali.dexlib2.AccessFlags
import com.android.tools.smali.dexlib2.Opcode

internal object ParamsMapPutFingerprint : MethodFingerprint(
returnType = "V",
accessFlags = AccessFlags.PUBLIC or AccessFlags.FINAL,
parameters = listOf(
"Ljava/lang/String;",
"Ljava/lang/String;",
),
opcodes = listOf(
Opcode.CONST_4,
Opcode.CONST_4,
Opcode.CONST_4,
Opcode.MOVE_OBJECT,
Opcode.MOVE_OBJECT,
Opcode.MOVE_OBJECT,
Opcode.INVOKE_DIRECT_RANGE,
),
)
Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
package app.revanced.patches.youtube.misc.fix.playback.fingerprints

import app.revanced.patcher.fingerprint.MethodFingerprint

internal object StatsQueryParameterFingerprint : MethodFingerprint(
strings = listOf("adunit"),
)

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