From fcce0a6948577afa13b4e8bfc66540e300eb6f3b Mon Sep 17 00:00:00 2001
From: Pun Butrach <pun.butrach@gmail.com>
Date: Mon, 12 Jan 2026 17:01:25 +0700
Subject: [PATCH] refactor(syncforreddit): SpoofClientPatch

---
 .../sync/syncforreddit/api/Fingerprints.kt    | 19 ++----
 .../syncforreddit/api/SpoofClientPatch.kt     | 59 +++++++++++--------
 2 files changed, 40 insertions(+), 38 deletions(-)

diff --git a/patches/src/main/kotlin/app/revanced/patches/reddit/customclients/sync/syncforreddit/api/Fingerprints.kt b/patches/src/main/kotlin/app/revanced/patches/reddit/customclients/sync/syncforreddit/api/Fingerprints.kt
index c7902b1f4..1d2ff2bad 100644
--- a/patches/src/main/kotlin/app/revanced/patches/reddit/customclients/sync/syncforreddit/api/Fingerprints.kt
+++ b/patches/src/main/kotlin/app/revanced/patches/reddit/customclients/sync/syncforreddit/api/Fingerprints.kt
@@ -1,19 +1,12 @@
 package app.revanced.patches.reddit.customclients.sync.syncforreddit.api
 
-import app.revanced.patcher.fingerprint
+import app.revanced.patcher.BytecodePatchContextMethodMatching.gettingFirstMutableMethodDeclaratively
+import app.revanced.patcher.patch.BytecodePatchContext
 
-internal val getAuthorizationStringFingerprint = fingerprint {
-    strings("authorize.compact?client_id")
-}
+internal val BytecodePatchContext.getAuthorizationStringMethod by gettingFirstMutableMethodDeclaratively("authorize.compact?client_id")
 
-internal val getBearerTokenFingerprint = fingerprint {
-    strings("Basic")
-}
+internal val BytecodePatchContext.getBearerTokenMethod by gettingFirstMutableMethodDeclaratively("Basic")
 
-internal val getUserAgentFingerprint = fingerprint {
-    strings("android:com.laurencedawson.reddit_sync")
-}
+internal val BytecodePatchContext.getUserAgentMethod by gettingFirstMutableMethodDeclaratively("android:com.laurencedawson.reddit_sync")
 
-internal val imgurImageAPIFingerprint = fingerprint {
-    strings("https://imgur-apiv3.p.rapidapi.com/3/image")
-}
+internal val BytecodePatchContext.imgurImageAPIMethod by gettingFirstMutableMethodDeclaratively("https://imgur-apiv3.p.rapidapi.com/3/image")
diff --git a/patches/src/main/kotlin/app/revanced/patches/reddit/customclients/sync/syncforreddit/api/SpoofClientPatch.kt b/patches/src/main/kotlin/app/revanced/patches/reddit/customclients/sync/syncforreddit/api/SpoofClientPatch.kt
index 2b00e2051..469ca5086 100644
--- a/patches/src/main/kotlin/app/revanced/patches/reddit/customclients/sync/syncforreddit/api/SpoofClientPatch.kt
+++ b/patches/src/main/kotlin/app/revanced/patches/reddit/customclients/sync/syncforreddit/api/SpoofClientPatch.kt
@@ -3,19 +3,22 @@ package app.revanced.patches.reddit.customclients.sync.syncforreddit.api
 import app.revanced.patcher.extensions.getInstruction
 import app.revanced.patcher.extensions.replaceInstruction
 import app.revanced.patches.reddit.customclients.`Spoof client`
-import app.revanced.patches.reddit.customclients.sync.detection.piracy.disablePiracyDetectionPatch
+import app.revanced.patches.reddit.customclients.sync.detection.piracy.`Disable piracy detection`
 import app.revanced.patches.shared.misc.string.replaceStringPatch
+import app.revanced.util.getReference
+import app.revanced.util.indexOfFirstInstructionOrThrow
 import app.revanced.util.returnEarly
+import com.android.tools.smali.dexlib2.Opcode
 import com.android.tools.smali.dexlib2.iface.instruction.OneRegisterInstruction
-import com.android.tools.smali.dexlib2.iface.instruction.ReferenceInstruction
 import com.android.tools.smali.dexlib2.iface.reference.StringReference
 import java.util.Base64
 
+@Suppress("unused")
 val spoofClientPatch = `Spoof client`(
     redirectUri = "http://redditsync/auth",
 ) { clientIdOption ->
     dependsOn(
-        disablePiracyDetectionPatch,
+        `Disable piracy detection`,
         // Redirects from SSL to WWW domain are bugged causing auth problems.
         // Manually rewrite the URLs to fix this.
         replaceStringPatch("ssl.reddit.com", "www.reddit.com")
@@ -32,28 +35,30 @@ val spoofClientPatch = `Spoof client`(
     apply {
         // region Patch client id.
 
-        getBearerTokenFingerprint.match(getAuthorizationStringFingerprint.originalClassDef).method.apply {
+        getBearerTokenMethod.apply {
             val auth = Base64.getEncoder().encodeToString("$clientId:".toByteArray(Charsets.UTF_8))
             returnEarly("Basic $auth")
+        }
 
-            val occurrenceIndex =
-                getAuthorizationStringFingerprint.stringMatches.first().index
-
-            getAuthorizationStringFingerprint.method.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, \"$newAuthorizationUrl\"",
-                )
+        getAuthorizationStringMethod.apply {
+            val occurrenceIndex = indexOfFirstInstructionOrThrow {
+                opcode == Opcode.CONST_STRING &&
+                        getReference<StringReference>()?.string?.contains("client_id=") == true
             }
+
+            val authorizationStringInstruction = getInstruction<OneRegisterInstruction>(occurrenceIndex)
+            val targetRegister = authorizationStringInstruction.registerA
+            val reference = authorizationStringInstruction.getReference<StringReference>()!!
+
+            val newAuthorizationUrl = reference.string.replace(
+                "client_id=.*?&".toRegex(),
+                "client_id=$clientId&",
+            )
+
+            replaceInstruction(
+                occurrenceIndex,
+                "const-string v$targetRegister, \"$newAuthorizationUrl\"",
+            )
         }
 
         // endregion
@@ -64,15 +69,19 @@ val spoofClientPatch = `Spoof client`(
         val randomName = (0..100000).random()
         val userAgent = "$randomName:app.revanced.$randomName:v1.0.0 (by /u/revanced)"
 
-        getUserAgentFingerprint.method.returnEarly(userAgent)
+        getUserAgentMethod.returnEarly(userAgent)
 
         // endregion
 
         // region Patch Imgur API URL.
 
-        imgurImageAPIFingerprint.let {
-            val apiUrlIndex = it.stringMatches.first().index
-            it.method.replaceInstruction(
+        imgurImageAPIMethod.apply {
+            val apiUrlIndex = indexOfFirstInstructionOrThrow {
+                opcode == Opcode.CONST_STRING &&
+                        getReference<StringReference>()?.string == "https://api.imgur.com/3/image"
+            }
+
+            replaceInstruction(
                 apiUrlIndex,
                 "const-string v1, \"https://api.imgur.com/3/image\"",
             )