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feat(fingerprint)!: StringsScanResult for MethodFingerprint
BREAKING CHANGE: `MethodFingerprint` now has a field for `MethodFingerprintScanResult`. `MethodFingerprintScanResult` now holds the previous field `MethodFingerprint.patternScanResult`. Signed-off-by: oSumAtrIX <johan.melkonyan1@web.de>
This commit is contained in:
oSumAtrIX
parent
a2bb4004c7
commit
3813e28ac2
2 changed files with 98 additions and 46 deletions
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@ -37,15 +37,65 @@ abstract class MethodFingerprint(
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* Represents the result of a [MethodFingerprintUtils].
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* @param method The matching method.
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* @param classDef The [ClassDef] that contains the matching [method].
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* @param patternScanResult Opcodes pattern scan result.
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* @param scanResult The result of scanning for the [MethodFingerprint].
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* @param data The [BytecodeData] this [MethodFingerprintResult] is attached to, to create proxies.
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*/
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data class MethodFingerprintResult(
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val method: Method,
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val classDef: ClassDef,
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val patternScanResult: PatternScanResult?,
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val scanResult: MethodFingerprintScanResult,
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internal val data: BytecodeData
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) {
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/**
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* The result of scanning on the [MethodFingerprint].
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* @param patternScanResult The result of the pattern scan.
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* @param stringsScanResult The result of the string scan.
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*/
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data class MethodFingerprintScanResult(
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val patternScanResult: PatternScanResult?,
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val stringsScanResult: StringsScanResult?
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) {
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/**
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* The result of scanning strings on the [MethodFingerprint].
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* @param matches The list of strings that were matched.
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*/
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data class StringsScanResult(val matches: List<StringMatch>){
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/**
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* Represents a match for a string at an index.
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* @param string The string that was matched.
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* @param index The index of the string.
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*/
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data class StringMatch(val string: String, val index: Int)
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}
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/**
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* The result of a pattern scan.
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* @param startIndex The start index of the instructions where to which this pattern matches.
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* @param endIndex The end index of the instructions where to which this pattern matches.
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* @param warnings A list of warnings considering this [PatternScanResult].
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*/
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data class PatternScanResult(
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val startIndex: Int,
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val endIndex: Int,
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var warnings: List<Warning>? = null
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) {
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/**
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* Represents warnings of the pattern scan.
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* @param correctOpcode The opcode the instruction list has.
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* @param wrongOpcode The opcode the pattern list of the signature currently has.
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* @param instructionIndex The index of the opcode relative to the instruction list.
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* @param patternIndex The index of the opcode relative to the pattern list from the signature.
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*/
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data class Warning(
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val correctOpcode: Opcode,
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val wrongOpcode: Opcode,
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val instructionIndex: Int,
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val patternIndex: Int,
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)
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}
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}
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/**
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* Returns a mutable clone of [classDef]
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*
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@ -65,30 +115,4 @@ data class MethodFingerprintResult(
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it.softCompareTo(this.method)
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}
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}
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}
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/**
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* The result of a pattern scan.
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* @param startIndex The start index of the instructions where to which this pattern matches.
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* @param endIndex The end index of the instructions where to which this pattern matches.
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* @param warnings A list of warnings considering this [PatternScanResult].
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*/
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data class PatternScanResult(
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val startIndex: Int,
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val endIndex: Int,
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var warnings: List<Warning>? = null
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) {
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/**
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* Represents warnings of the pattern scan.
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* @param correctOpcode The opcode the instruction list has.
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* @param wrongOpcode The opcode the pattern list of the signature currently has.
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* @param instructionIndex The index of the opcode relative to the instruction list.
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* @param patternIndex The index of the opcode relative to the pattern list from the signature.
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*/
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data class Warning(
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val correctOpcode: Opcode,
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val wrongOpcode: Opcode,
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val instructionIndex: Int,
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val patternIndex: Int,
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)
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}
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@ -7,14 +7,12 @@ import app.revanced.patcher.extensions.parametersEqual
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import app.revanced.patcher.fingerprint.method.annotation.FuzzyPatternScanMethod
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import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
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import app.revanced.patcher.fingerprint.method.impl.MethodFingerprintResult
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import app.revanced.patcher.fingerprint.method.impl.PatternScanResult
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import org.jf.dexlib2.Opcode
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import org.jf.dexlib2.iface.ClassDef
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import org.jf.dexlib2.iface.Method
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import org.jf.dexlib2.iface.instruction.Instruction
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import org.jf.dexlib2.iface.instruction.ReferenceInstruction
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import org.jf.dexlib2.iface.reference.StringReference
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/**
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* Utility class for [MethodFingerprint]
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*/
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@ -73,21 +71,32 @@ object MethodFingerprintUtils {
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if (methodFingerprint.customFingerprint != null && !methodFingerprint.customFingerprint!!(context))
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return false
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if (methodFingerprint.strings != null) {
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val implementation = context.implementation ?: return false
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val stringsScanResult: StringsScanResult? =
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if (methodFingerprint.strings != null) {
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StringsScanResult(buildList {
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val implementation = context.implementation ?: return false
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val stringsList = methodFingerprint.strings.toMutableList()
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val stringsList = methodFingerprint.strings.toMutableList()
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implementation.instructions.forEach { instruction ->
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if (instruction.opcode.ordinal != Opcode.CONST_STRING.ordinal) return@forEach
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implementation.instructions.forEach { instruction ->
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if (instruction.opcode.ordinal != Opcode.CONST_STRING.ordinal) return@forEach
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val string = ((instruction as ReferenceInstruction).reference as StringReference).string
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val index = stringsList.indexOfFirst { it == string }
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if (index != -1) stringsList.removeAt(index)
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}
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val string = ((instruction as ReferenceInstruction).reference as StringReference).string
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val index = stringsList.indexOfFirst { it == string }
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if (index == -1) return@forEach
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if (stringsList.isNotEmpty()) return false
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}
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add(
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StringMatch(
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string,
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index
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)
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)
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stringsList.removeAt(index)
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}
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if (stringsList.isNotEmpty()) return false
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})
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} else null
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val patternScanResult = if (methodFingerprint.opcodes != null) {
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context.implementation?.instructions ?: return false
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@ -95,14 +104,22 @@ object MethodFingerprintUtils {
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context.patternScan(methodFingerprint) ?: return false
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} else null
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methodFingerprint.result = MethodFingerprintResult(context, classDef, patternScanResult, forData)
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methodFingerprint.result = MethodFingerprintResult(
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context,
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classDef,
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MethodFingerprintResult.MethodFingerprintScanResult(
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patternScanResult,
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stringsScanResult
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),
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forData
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)
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return true
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}
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private fun Method.patternScan(
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fingerprint: MethodFingerprint
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): PatternScanResult? {
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): MethodFingerprintResult.MethodFingerprintScanResult.PatternScanResult? {
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val instructions = this.implementation!!.instructions
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val fingerprintFuzzyPatternScanThreshold = fingerprint.fuzzyScanThreshold
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@ -131,7 +148,8 @@ object MethodFingerprintUtils {
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continue
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}
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// the pattern is valid, generate warnings if fuzzyPatternScanMethod is FuzzyPatternScanMethod
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val result = PatternScanResult(index, index + patternIndex)
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val result =
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MethodFingerprintResult.MethodFingerprintScanResult.PatternScanResult(index, index + patternIndex)
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if (fingerprint.fuzzyPatternScanMethod !is FuzzyPatternScanMethod) return result
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result.warnings = result.createWarnings(pattern, instructions)
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@ -143,7 +161,10 @@ object MethodFingerprintUtils {
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}
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}
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private fun PatternScanResult.createWarnings(
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private typealias StringsScanResult = MethodFingerprintResult.MethodFingerprintScanResult.StringsScanResult
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private typealias StringMatch = MethodFingerprintResult.MethodFingerprintScanResult.StringsScanResult.StringMatch
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private fun MethodFingerprintResult.MethodFingerprintScanResult.PatternScanResult.createWarnings(
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pattern: Iterable<Opcode?>, instructions: Iterable<Instruction>
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) = buildList {
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for ((patternIndex, instructionIndex) in (this@createWarnings.startIndex until this@createWarnings.endIndex).withIndex()) {
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@ -152,7 +173,14 @@ private fun PatternScanResult.createWarnings(
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if (patternOpcode == null || patternOpcode.ordinal == originalOpcode.ordinal) continue
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this.add(PatternScanResult.Warning(originalOpcode, patternOpcode, instructionIndex, patternIndex))
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this.add(
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MethodFingerprintResult.MethodFingerprintScanResult.PatternScanResult.Warning(
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originalOpcode,
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patternOpcode,
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instructionIndex,
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patternIndex
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)
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)
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}
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}
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