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feat(tasker): unlock-license patch (#1339)

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oSumAtrIX 2022-12-22 00:38:16 +01:00 committed by GitHub
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9
src/main/kotlin/app/revanced/patches/tasker/license/unlock/annotations/UnlockLicenseCompatibility.kt Normal file
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package app.revanced.patches.tasker.license.unlock.annotations
import app.revanced.patcher.annotation.Compatibility
import app.revanced.patcher.annotation.Package
@Compatibility([Package("net.dinglisch.android.taskerm")])
@Target(AnnotationTarget.CLASS)
@Retention(AnnotationRetention.RUNTIME)
internal annotation class UnlockLicenseCompatibility

14
src/main/kotlin/app/revanced/patches/tasker/license/unlock/fingerprints/CheckLicenseFingerprint.kt Normal file
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package app.revanced.patches.tasker.license.unlock.fingerprints
import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
import org.jf.dexlib2.Opcode
object CheckLicenseFingerprint : MethodFingerprint(
strings = listOf("just(IsLicensedResult(true))"),
opcodes = listOf(
Opcode.GOTO,
Opcode.INVOKE_VIRTUAL,
Opcode.MOVE_RESULT_OBJECT,
Opcode.INVOKE_VIRTUAL
)
)

46
src/main/kotlin/app/revanced/patches/tasker/license/unlock/patch/UnlockLicensePatch.kt Normal file
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package app.revanced.patches.tasker.license.unlock.patch
import app.revanced.extensions.toErrorResult
import app.revanced.patcher.annotation.Description
import app.revanced.patcher.annotation.Name
import app.revanced.patcher.annotation.Version
import app.revanced.patcher.data.BytecodeContext
import app.revanced.patcher.extensions.instruction
import app.revanced.patcher.patch.BytecodePatch
import app.revanced.patcher.patch.PatchResultSuccess
import app.revanced.patcher.patch.annotations.Patch
import app.revanced.patches.tasker.license.unlock.annotations.UnlockLicenseCompatibility
import app.revanced.patches.tasker.license.unlock.fingerprints.CheckLicenseFingerprint
import org.jf.dexlib2.iface.instruction.FiveRegisterInstruction
import org.jf.dexlib2.iface.instruction.ReferenceInstruction
import org.jf.dexlib2.iface.reference.MethodReference
import org.jf.dexlib2.immutable.instruction.ImmutableInstruction35c
@Patch
@Name("unlock-license")
@Description("Unlocks the trial version.")
@UnlockLicenseCompatibility
@Version("0.0.1")
class UnlockLicensePatch : BytecodePatch(
listOf(
CheckLicenseFingerprint
)
) {
override fun execute(context: BytecodeContext) = CheckLicenseFingerprint.result?.let { result ->
val patchIndex = result.scanResult.patternScanResult!!.endIndex
with(result.mutableMethod.instruction(patchIndex) as FiveRegisterInstruction) {
ImmutableInstruction35c(
opcode,
registerCount,
registerC,
0, // registerE is 1, registerD is now 0 instead of 1 bypassing the license verification
registerE,
registerF,
registerG,
(this as ReferenceInstruction).reference as MethodReference
)
}
PatchResultSuccess()
} ?: CheckLicenseFingerprint.toErrorResult()
}