fix(YouTube Music - GmsCore support): Handle sharing links to certain apps such as Instagram (#6026)

patches/src/main/kotlin/app/revanced/patches/music/misc/fileprovider/FileProviderPatch.kt

@@ -0,0 +1,44 @@
+package app.revanced.patches.music.misc.fileprovider
+
+import app.revanced.patcher.extensions.InstructionExtensions.addInstructionsWithLabels
+import app.revanced.patcher.patch.bytecodePatch
+import app.revanced.patches.all.misc.packagename.setOrGetFallbackPackageName
+import app.revanced.patches.music.utils.fix.fileprovider.fileProviderResolverFingerprint
+
+internal fun fileProviderPatch(
+    youtubePackageName: String,
+    musicPackageName: String
+) = bytecodePatch(
+    description = "Fixes broken YouTube Music file provider that prevents sharing with specific apps such as Instagram."
+) {
+    finalize {
+        // Must do modification last, so change package name value is correctly set.
+        val musicChangedPackageName = setOrGetFallbackPackageName(musicPackageName)
+
+        // For some reason, if the app gets "android.support.FILE_PROVIDER_PATHS",
+        // the package name of YouTube is used, not the package name of the YT Music.
+        //
+        // There is no issue in the stock YT Music, but this is an issue in the GmsCore Build.
+        // https://github.com/ReVanced/revanced-patches/issues/55
+        //
+        // To solve this issue, replace the package name of YouTube with YT Music's package name.
+        fileProviderResolverFingerprint.method.addInstructionsWithLabels(
+            0,
+            """
+                const-string v0, "com.google.android.youtube.fileprovider"
+                invoke-static { p1, v0 }, Ljava/util/Objects;->equals(Ljava/lang/Object;Ljava/lang/Object;)Z
+                move-result v0
+                if-nez v0, :fix
+                const-string v0, "$youtubePackageName.fileprovider"
+                invoke-static { p1, v0 }, Ljava/util/Objects;->equals(Ljava/lang/Object;Ljava/lang/Object;)Z
+                move-result v0
+                if-nez v0, :fix
+                goto :ignore
+                :fix
+                const-string p1, "$musicChangedPackageName.fileprovider"
+                :ignore
+                nop
+            """
+        )
+    }
+}

patches/src/main/kotlin/app/revanced/patches/music/misc/fileprovider/Fingerprints.kt

@@ -0,0 +1,11 @@
+package app.revanced.patches.music.utils.fix.fileprovider
+
+import app.revanced.patcher.fingerprint
+
+internal val fileProviderResolverFingerprint = fingerprint {
+    returns("L")
+    strings(
+        "android.support.FILE_PROVIDER_PATHS",
+        "Name must not be empty"
+    )
+}

patches/src/main/kotlin/app/revanced/patches/music/misc/gms/GmsCoreSupportPatch.kt

@@ -9,6 +9,7 @@ import app.revanced.patches.music.misc.gms.Constants.REVANCED_MUSIC_PACKAGE_NAME
 import app.revanced.patches.music.misc.settings.PreferenceScreen
 import app.revanced.patches.music.misc.settings.settingsPatch
 import app.revanced.patches.music.misc.spoof.spoofVideoStreamsPatch
+import app.revanced.patches.music.misc.fileprovider.fileProviderPatch
 import app.revanced.patches.shared.castContextFetchFingerprint
 import app.revanced.patches.shared.misc.gms.gmsCoreSupportPatch
 import app.revanced.patches.shared.misc.settings.preference.IntentPreference
@@ -60,6 +61,10 @@ private fun gmsCoreSupportResourcePatch(
 ) {
     dependsOn(
         addResourcesPatch,
-        settingsPatch
+        settingsPatch,
+        fileProviderPatch(
+            MUSIC_PACKAGE_NAME,
+            REVANCED_MUSIC_PACKAGE_NAME
+        )
     )
 }

patches/src/main/kotlin/app/revanced/patches/music/misc/settings/SettingsPatch.kt

@@ -6,6 +6,7 @@ import app.revanced.patches.all.misc.packagename.setOrGetFallbackPackageName
 import app.revanced.patches.all.misc.resources.addResources
 import app.revanced.patches.all.misc.resources.addResourcesPatch
 import app.revanced.patches.music.misc.extension.sharedExtensionPatch
+import app.revanced.patches.music.misc.gms.Constants.MUSIC_PACKAGE_NAME
 import app.revanced.patches.shared.misc.mapping.resourceMappingPatch
 import app.revanced.patches.shared.misc.settings.preference.BasePreference
 import app.revanced.patches.shared.misc.settings.preference.BasePreferenceScreen
@@ -126,7 +127,7 @@ fun newIntent(settingsName: String) = IntentPreference.Intent(
     targetClass = "com.google.android.gms.common.api.GoogleApiActivity"
 ) {
     // The package name change has to be reflected in the intent.
-    setOrGetFallbackPackageName("com.google.android.apps.youtube.music")
+    setOrGetFallbackPackageName(MUSIC_PACKAGE_NAME)
 }
 
 object PreferenceScreen : BasePreferenceScreen() {