feat(Twitter): Add Change link sharing domain patch (ReVanced#3753)

Co-authored-by: oSumAtrIX <[email protected]>

api/revanced-patches.api

@@ -1490,6 +1490,12 @@ public final class app/revanced/patches/twitter/misc/hook/patch/recommendation/H
 	public static final field INSTANCE Lapp/revanced/patches/twitter/misc/hook/patch/recommendation/HideRecommendedUsersPatch;
 }
 
+public final class app/revanced/patches/twitter/misc/links/ChangeLinkSharingDomainPatch : app/revanced/patcher/patch/BytecodePatch {
+	public static final field INSTANCE Lapp/revanced/patches/twitter/misc/links/ChangeLinkSharingDomainPatch;
+	public fun execute (Lapp/revanced/patcher/data/BytecodeContext;)V
+	public synthetic fun execute (Lapp/revanced/patcher/data/Context;)V
+}
+
 public final class app/revanced/patches/twitter/misc/links/OpenLinksWithAppChooserPatch : app/revanced/patcher/patch/BytecodePatch {
 	public static final field INSTANCE Lapp/revanced/patches/twitter/misc/links/OpenLinksWithAppChooserPatch;
 	public fun execute (Lapp/revanced/patcher/data/BytecodeContext;)V

src/main/kotlin/app/revanced/patches/twitter/misc/links/ChangeLinkSharingDomainPatch.kt

@@ -0,0 +1,93 @@
+package app.revanced.patches.twitter.misc.links
+
+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.patch.BytecodePatch
+import app.revanced.patcher.patch.annotation.CompatiblePackage
+import app.revanced.patcher.patch.annotation.Patch
+import app.revanced.patcher.patch.options.PatchOption.PatchExtensions.stringPatchOption
+import app.revanced.patches.twitter.misc.links.fingerprints.LinkBuilderFingerprint
+import app.revanced.patches.twitter.misc.links.fingerprints.LinkResourceGetterFingerprint
+import app.revanced.patches.twitter.misc.links.fingerprints.LinkSharingDomainFingerprint
+import app.revanced.util.exception
+import app.revanced.util.getReference
+import app.revanced.util.indexOfFirstInstructionOrThrow
+import com.android.tools.smali.dexlib2.iface.instruction.OneRegisterInstruction
+import com.android.tools.smali.dexlib2.iface.instruction.formats.Instruction35c
+import com.android.tools.smali.dexlib2.iface.reference.StringReference
+
+@Patch(
+    name = "Change link sharing domain",
+    description = "Replaces the domain name of Twitter links when sharing them.",
+    compatiblePackages = [CompatiblePackage("com.twitter.android")],
+)
+@Suppress("unused")
+object ChangeLinkSharingDomainPatch : BytecodePatch(
+    setOf(
+        LinkBuilderFingerprint,
+        LinkResourceGetterFingerprint,
+        LinkSharingDomainFingerprint,
+    ),
+) {
+    private var domainName by stringPatchOption(
+        key = "domainName",
+        default = "fxtwitter.com",
+        title = "Domain name",
+        description = "The domain name to use when sharing links.",
+        required = true,
+    )
+
+    // This method is used to build the link that is shared when the "Share via..." button is pressed.
+    private const val FORMAT_METHOD_RESOURCE_REFERENCE =
+        "Lapp/revanced/integrations/twitter/patches/links/ChangeLinkSharingDomainPatch;->" +
+            "formatResourceLink([Ljava/lang/Object;)Ljava/lang/String;"
+
+    // This method is used to build the link that is shared when the "Copy link" button is pressed.
+    private const val FORMAT_METHOD_REFERENCE =
+        "Lapp/revanced/integrations/twitter/patches/links/ChangeLinkSharingDomainPatch;->" +
+            "formatLink(JLjava/lang/String;)Ljava/lang/String;"
+
+    override fun execute(context: BytecodeContext) {
+        LinkSharingDomainFingerprint.result?.let {
+            val replacementIndex = it.scanResult.stringsScanResult!!.matches.first().index
+            val domainRegister = it.mutableMethod.getInstruction<OneRegisterInstruction>(replacementIndex).registerA
+            it.mutableMethod.replaceInstruction(
+                replacementIndex,
+                "const-string v$domainRegister, \"https://$domainName\"",
+            )
+        } ?: throw LinkSharingDomainFingerprint.exception
+
+        // Replace the domain name when copying a link with "Copy link" button.
+        LinkBuilderFingerprint.result?.let {
+            it.mutableMethod.apply {
+                addInstructions(
+                    0,
+                    """
+                        invoke-static { p0, p1, p2 }, $FORMAT_METHOD_REFERENCE
+                        move-result-object p0
+                        return-object p0
+                    """,
+                )
+            }
+        } ?: throw LinkBuilderFingerprint.exception
+
+        // Used in the Share via... dialog.
+        LinkResourceGetterFingerprint.result?.mutableMethod?.apply {
+            val constWithParameterName = indexOfFirstInstructionOrThrow {
+                getReference<StringReference>()?.string?.contains("id.toString()") == true
+            }
+
+            // Format the link with the new domain name register (2 instructions above the const-string).
+            val formatLinkCallIndex = constWithParameterName - 2
+            val formatLinkCall = getInstruction<Instruction35c>(formatLinkCallIndex)
+
+            // Replace the original method call with the new method call.
+            replaceInstruction(
+                formatLinkCallIndex,
+                "invoke-static { v${formatLinkCall.registerE} }, $FORMAT_METHOD_RESOURCE_REFERENCE",
+            )
+        } ?: throw LinkResourceGetterFingerprint.exception
+    }
+}

src/main/kotlin/app/revanced/patches/twitter/misc/links/fingerprints/LinkBuilderFingerprint.kt

@@ -0,0 +1,8 @@
+package app.revanced.patches.twitter.misc.links.fingerprints
+
+import app.revanced.patcher.fingerprint.MethodFingerprint
+
+// Returns a shareable link string based on a tweet ID and a username.
+internal object LinkBuilderFingerprint : MethodFingerprint(
+    strings = listOf("/%1\$s/status/%2\$d"),
+)

src/main/kotlin/app/revanced/patches/twitter/misc/links/fingerprints/LinkResourceGetterFingerprint.kt

@@ -0,0 +1,12 @@
+package app.revanced.patches.twitter.misc.links.fingerprints
+
+import app.revanced.patcher.extensions.or
+import app.revanced.patcher.fingerprint.MethodFingerprint
+import com.android.tools.smali.dexlib2.AccessFlags
+
+// Gets Resource string for share link view available by pressing "Share via" button.
+internal object LinkResourceGetterFingerprint : MethodFingerprint(
+    accessFlags = AccessFlags.PUBLIC or AccessFlags.FINAL,
+    parameters = listOf("Landroid/content/res/Resources;"),
+    strings = listOf("res.getString(R.string.t…lUsername, id.toString())"),
+)

src/main/kotlin/app/revanced/patches/twitter/misc/links/fingerprints/LinkSharingDomainFingerprint.kt

@@ -0,0 +1,7 @@
+package app.revanced.patches.twitter.misc.links.fingerprints
+
+import app.revanced.patcher.fingerprint.MethodFingerprint
+
+internal object LinkSharingDomainFingerprint : MethodFingerprint(
+    strings = listOf("https://fxtwitter.com"),
+)