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https://github.com/revanced/revanced-patches
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feat(youtube/spoof-signature-verification): automatic signature spoofing
Co-authored-by: oSumAtrIX <johan.melkonyan1@web.de>
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commit
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@ -0,0 +1,17 @@
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package app.revanced.patches.youtube.misc.fix.playback.fingerprints
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import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
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import org.jf.dexlib2.Opcode
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// Resolves to the method CronetDataSource.open
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// https://androidx.tech/artifacts/media3/media3-datasource-cronet/1.0.0-alpha03-source/androidx/media3/datasource/cronet/CronetDataSource.java.html
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object OpenCronetDataSourceFingerprint : MethodFingerprint(
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opcodes = listOf(
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Opcode.MOVE_RESULT,
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Opcode.INVOKE_VIRTUAL,
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Opcode.MOVE_RESULT_OBJECT,
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),
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strings = listOf(
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"err_cleartext_not_permitted",
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),
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)
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@ -7,27 +7,50 @@ import app.revanced.patcher.annotation.Version
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import app.revanced.patcher.data.BytecodeContext
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import app.revanced.patcher.data.toMethodWalker
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import app.revanced.patcher.extensions.addInstructions
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import app.revanced.patcher.extensions.instruction
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import app.revanced.patcher.patch.BytecodePatch
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import app.revanced.patcher.patch.PatchResult
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import app.revanced.patcher.patch.PatchResultSuccess
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import app.revanced.patcher.patch.annotations.DependsOn
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import app.revanced.patcher.patch.annotations.Patch
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import app.revanced.patcher.util.proxy.mutableTypes.MutableMethod
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import app.revanced.patches.shared.settings.preference.impl.StringResource
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import app.revanced.patches.shared.settings.preference.impl.SwitchPreference
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import app.revanced.patches.youtube.misc.fix.playback.annotation.ProtobufSpoofCompatibility
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import app.revanced.patches.youtube.misc.fix.playback.fingerprints.OpenCronetDataSourceFingerprint
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import app.revanced.patches.youtube.misc.fix.playback.fingerprints.ProtobufParameterBuilderFingerprint
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import app.revanced.patches.youtube.misc.integrations.patch.IntegrationsPatch
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import app.revanced.patches.youtube.misc.settings.bytecode.patch.SettingsPatch
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import org.jf.dexlib2.iface.instruction.OneRegisterInstruction
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@Patch
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@Name("spoof-signature-verification")
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@Description("Spoofs the client to prevent playback issues.")
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@ProtobufSpoofCompatibility
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@DependsOn([IntegrationsPatch::class, SettingsPatch::class])
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@Version("0.0.1")
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class SpoofSignatureVerificationPatch : BytecodePatch(
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listOf(ProtobufParameterBuilderFingerprint)
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listOf(
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ProtobufParameterBuilderFingerprint,
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OpenCronetDataSourceFingerprint,
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)
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) {
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override fun execute(context: BytecodeContext): PatchResult {
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SettingsPatch.PreferenceScreen.MISC.addPreferences(
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SwitchPreference(
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"revanced_spoof_signature_verification",
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StringResource("revanced_spoof_signature_verification_title", "Spoof app signature"),
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false,
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StringResource("revanced_spoof_signature_verification_summary_on", "App signature spoofed"),
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StringResource("revanced_spoof_signature_verification_summary_off", "App signature not spoofed")
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)
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)
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// hook parameter
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ProtobufParameterBuilderFingerprint.result?.let {
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val setParamMethod = context
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.toMethodWalker(it.method)
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.nextMethod(it.scanResult.patternScanResult!!.startIndex, true).getMethod() as MutableMethod
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.nextMethod(it.scanResult.patternScanResult!!.startIndex, true).getMethod() as MutableMethod
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setParamMethod.apply {
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val protobufParameterRegister = 3
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@ -35,13 +58,30 @@ class SpoofSignatureVerificationPatch : BytecodePatch(
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addInstructions(
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0,
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"""
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invoke-static {p$protobufParameterRegister}, $INTEGRATIONS_CLASS_DESCRIPTOR->getVerificationSpoofOverride(Ljava/lang/String;)Ljava/lang/String;
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invoke-static {p$protobufParameterRegister}, $INTEGRATIONS_CLASS_DESCRIPTOR->overrideProtobufParameter(Ljava/lang/String;)Ljava/lang/String;
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move-result-object p$protobufParameterRegister
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"""
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)
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}
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} ?: return ProtobufParameterBuilderFingerprint.toErrorResult()
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// hook video playback result
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OpenCronetDataSourceFingerprint.result?.let {
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it.mutableMethod.apply {
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val getHeadersInstructionIndex = it.scanResult.patternScanResult!!.endIndex
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val responseCodeRegister =
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(instruction(getHeadersInstructionIndex - 2) as OneRegisterInstruction).registerA
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addInstructions(
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getHeadersInstructionIndex + 1,
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"""
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invoke-static {v$responseCodeRegister}, $INTEGRATIONS_CLASS_DESCRIPTOR->onResponse(I)V
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"""
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)
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}
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} ?: return OpenCronetDataSourceFingerprint.toErrorResult()
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return PatchResultSuccess()
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}
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