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feat(syncforreddit): add change-oauth-client-id patch (#2393)

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oSumAtrIX 2023-06-12 01:15:16 +02:00 committed by GitHub
parent bc97c10a53
commit c93f0c6a99
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9 changed files with 134 additions and 13 deletions
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4
build.gradle.kts
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@ -33,6 +33,10 @@ dependencies {
implementation("com.google.code.gson:gson:2.10.1")
// Required for FlexVer-Java
implementation("com.unascribed:flexver-java:1.0.2")
// A dependency to the Android library unfortunately fails the build,
// which is why this is required for the patch change-oauth-client-id
compileOnly(project("dummy"))
}
kotlin {

9
dummy/build.gradle.kts Normal file
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@ -0,0 +1,9 @@
plugins {
id("java")
}
java {
toolchain {
languageVersion.set(JavaLanguageVersion.of(11))
}
}

7
dummy/src/main/java/android/os/Environment.java Normal file
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@ -0,0 +1,7 @@
package android.os;
public final class Environment {
public static String getExternalStorageDirectory() {
throw new UnsupportedOperationException("Stub");
}
}

2
settings.gradle.kts
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@ -1 +1,3 @@
include("dummy")
rootProject.name = "revanced-patches"

8
src/main/kotlin/app/revanced/patches/syncforreddit/ads/annotations/DisableAdsCompatibility.kt
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@ -1,8 +0,0 @@
package app.revanced.patches.syncforreddit.ads.annotations
import app.revanced.patcher.annotation.Compatibility
import app.revanced.patcher.annotation.Package
@Compatibility([Package("com.laurencedawson.reddit_sync")])
@Target(AnnotationTarget.CLASS)
internal annotation class DisableAdsCompatibility

7
src/main/kotlin/app/revanced/patches/syncforreddit/ads/patch/DisableAdsPatch.kt
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@ -1,9 +1,7 @@
package app.revanced.patches.syncforreddit.ads.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.annotation.*
import app.revanced.patcher.data.BytecodeContext
import app.revanced.patcher.extensions.InstructionExtensions.addInstructions
import app.revanced.patcher.patch.BytecodePatch
@ -11,7 +9,6 @@ import app.revanced.patcher.patch.PatchResult
import app.revanced.patcher.patch.PatchResultSuccess
import app.revanced.patcher.patch.annotations.DependsOn
import app.revanced.patcher.patch.annotations.Patch
import app.revanced.patches.syncforreddit.ads.annotations.DisableAdsCompatibility
import app.revanced.patches.syncforreddit.ads.fingerprints.IsAdsEnabledFingerprint
import app.revanced.patches.syncforreddit.detection.piracy.patch.DisablePiracyDetectionPatch
@ -19,8 +16,8 @@ import app.revanced.patches.syncforreddit.detection.piracy.patch.DisablePiracyDe
@Name("disable-ads")
@DependsOn([DisablePiracyDetectionPatch::class])
@Description("Disables ads.")
@Compatibility([Package("com.laurencedawson.reddit_sync")])
@Version("0.0.1")
@DisableAdsCompatibility
class DisableAdsPatch : BytecodePatch(listOf(IsAdsEnabledFingerprint)) {
override fun execute(context: BytecodeContext): PatchResult {
IsAdsEnabledFingerprint.result?.mutableMethod?.apply {

7
src/main/kotlin/app/revanced/patches/syncforreddit/api/fingerprints/GetAuthorizationStringFingerprint.kt Normal file
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@ -0,0 +1,7 @@
package app.revanced.patches.syncforreddit.api.fingerprints
import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
object GetAuthorizationStringFingerprint : MethodFingerprint(
strings = listOf("authorize.compact?client_id")
)

7
src/main/kotlin/app/revanced/patches/syncforreddit/api/fingerprints/GetBearerTokenFingerprint.kt Normal file
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@ -0,0 +1,7 @@
package app.revanced.patches.syncforreddit.api.fingerprints
import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
object GetBearerTokenFingerprint : MethodFingerprint(
strings = listOf("Basic")
)

96
src/main/kotlin/app/revanced/patches/syncforreddit/api/patch/ChangeOAuthClientIdPatch.kt Normal file
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@ -0,0 +1,96 @@
package app.revanced.patches.syncforreddit.api.patch
import android.os.Environment
import app.revanced.patcher.annotation.*
import app.revanced.patcher.data.BytecodeContext
import app.revanced.patcher.extensions.InstructionExtensions.addInstructions
import app.revanced.patcher.extensions.InstructionExtensions.getInstruction
import app.revanced.patcher.extensions.InstructionExtensions.replaceInstruction
import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint.Companion.resolve
import app.revanced.patcher.patch.*
import app.revanced.patcher.patch.annotations.Patch
import app.revanced.patches.syncforreddit.api.fingerprints.GetAuthorizationStringFingerprint
import app.revanced.patches.syncforreddit.api.fingerprints.GetBearerTokenFingerprint
import org.jf.dexlib2.iface.instruction.OneRegisterInstruction
import org.jf.dexlib2.iface.instruction.ReferenceInstruction
import org.jf.dexlib2.iface.reference.StringReference
import java.io.File
import java.util.*
@Patch
@Name("change-oauth-client-id")
@Description("Changes the OAuth client ID.")
@Compatibility([Package("com.laurencedawson.reddit_sync")])
@Version("0.0.1")
class ChangeOAuthClientIdPatch : BytecodePatch(
listOf(GetAuthorizationStringFingerprint)
) {
override fun execute(context: BytecodeContext): PatchResult {
if (clientId == null) {
// Test if on Android
try {
Class.forName("android.os.Environment")
} catch (e: ClassNotFoundException) {
return PatchResultError("No client ID provided")
}
File(Environment.getExternalStorageDirectory(), "reddit_client_id_revanced.txt").also {
if (it.exists()) return@also
val error = """
In order to use this patch, you need to provide a client ID.
You can do this by creating a file at ${it.absolutePath} with the client ID as its content.
Alternatively, you can provide the client ID using patch options.
You can get your client ID from https://www.reddit.com/prefs/apps.
The redirect URI has to be set to "http://redditsync/auth".
""".trimIndent()
return PatchResultError(error)
}.let { clientId = it.readText() }
}
GetAuthorizationStringFingerprint.result?.also { result ->
GetBearerTokenFingerprint.also { it.resolve(context, result.classDef) }.result?.mutableMethod?.apply {
val auth = Base64.getEncoder().encodeToString("$clientId:".toByteArray(Charsets.UTF_8))
addInstructions(
0,
"""
const-string v0, "Basic $auth"
return-object v0
"""
)
} ?: return PatchResultError("Could not find required method to patch.")
}?.let {
val occurrenceIndex = it.scanResult.stringsScanResult!!.matches.first().index
it.mutableMethod.apply {
val authorizationStringInstruction = getInstruction<ReferenceInstruction>(occurrenceIndex)
val targetRegister = (authorizationStringInstruction as OneRegisterInstruction).registerA
val reference = authorizationStringInstruction.reference as StringReference
val newAuthorizationUrl = reference.string.replace(
"client_id=.*?&".toRegex(),
"client_id=${clientId!!}&"
)
replaceInstruction(
occurrenceIndex,
"const-string v$targetRegister, \"$newAuthorizationUrl\""
)
}
} ?: return PatchResultError("Could not find required method to patch.")
return PatchResultSuccess()
}
companion object : OptionsContainer() {
var clientId by option(
PatchOption.StringOption(
"client-id",
null,
"OAuth client ID",
"The client ID to use for OAuth."
)
)
}
}