From 6b291c469e6038a7100fbe3a7be7c32f6f2d02fe Mon Sep 17 00:00:00 2001
From: Peter Ombodi <p.ombodi@gmail.com>
Date: Mon, 27 Apr 2026 16:28:58 +0300
Subject: [PATCH] fix(mobile): resolve view intent MIME type with fallbacks

---
 .../alextran/immich/media/MediaStoreUtils.kt  | 45 +++++++++++++++++++
 .../immich/viewintent/ViewIntentPlugin.kt     |  2 +-
 2 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/mobile/android/app/src/main/kotlin/app/alextran/immich/media/MediaStoreUtils.kt b/mobile/android/app/src/main/kotlin/app/alextran/immich/media/MediaStoreUtils.kt
index 3af520bb77..36f207bd44 100644
--- a/mobile/android/app/src/main/kotlin/app/alextran/immich/media/MediaStoreUtils.kt
+++ b/mobile/android/app/src/main/kotlin/app/alextran/immich/media/MediaStoreUtils.kt
@@ -5,6 +5,10 @@ import android.net.Uri
 import android.os.Build
 import android.provider.MediaStore
 import android.provider.OpenableColumns
+import android.util.Log
+import android.webkit.MimeTypeMap
+
+private const val TAG = "MediaStoreUtils"
 
 object MediaStoreUtils {
   private fun externalFilesUri(): Uri =
@@ -31,6 +35,14 @@ object MediaStoreUtils {
       else -> externalFilesUri()
     }
 
+  fun resolveMimeType(context: Context, uri: Uri, fallbackMimeType: String? = null): String? {
+    return context.contentResolver.getType(uri)
+      ?: fallbackMimeType
+      ?: resolveMimeTypeFromDisplayName(context, uri)
+      ?: resolveMimeTypeFromPath(uri.path)
+      ?: resolveMimeTypeFromPath(uri.toString())
+  }
+
   fun resolveLocalIdByRelativePath(context: Context, path: String, mimeType: String): String? {
     val fileName = path.substringAfterLast('/', missingDelimiterValue = path)
     val parent = path.substringBeforeLast('/', "").let { if (it.isEmpty()) "" else "$it/" }
@@ -76,6 +88,39 @@ object MediaStoreUtils {
     )
   }
 
+  private fun resolveMimeTypeFromDisplayName(context: Context, uri: Uri): String? {
+    return try {
+      context.contentResolver.query(uri, arrayOf(OpenableColumns.DISPLAY_NAME), null, null, null)?.use { cursor ->
+        if (!cursor.moveToFirst()) {
+          return null
+        }
+
+        val displayNameIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
+        if (displayNameIndex < 0) {
+          return null
+        }
+
+        resolveMimeTypeFromPath(cursor.getString(displayNameIndex))
+      }
+    } catch (e: Exception) {
+      Log.w(TAG, "Failed to resolve MIME type from display name: $uri", e)
+      null
+    }
+  }
+
+  private fun resolveMimeTypeFromPath(path: String?): String? {
+    if (path.isNullOrBlank()) {
+      return null
+    }
+
+    val extension = path.substringAfterLast('.', missingDelimiterValue = "").substringBefore('?').substringBefore('#')
+    if (extension.isBlank()) {
+      return null
+    }
+
+    return MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension.lowercase())
+  }
+
   private fun queryLatestId(
     context: Context,
     tableUri: Uri,
diff --git a/mobile/android/app/src/main/kotlin/app/alextran/immich/viewintent/ViewIntentPlugin.kt b/mobile/android/app/src/main/kotlin/app/alextran/immich/viewintent/ViewIntentPlugin.kt
index 8f26aaa8c1..9773906682 100644
--- a/mobile/android/app/src/main/kotlin/app/alextran/immich/viewintent/ViewIntentPlugin.kt
+++ b/mobile/android/app/src/main/kotlin/app/alextran/immich/viewintent/ViewIntentPlugin.kt
@@ -83,7 +83,7 @@ class ViewIntentPlugin : FlutterPlugin, ActivityAware, PluginRegistry.NewIntentL
 
     ioScope.launch {
       try {
-        val mimeType = context.contentResolver.getType(uri)
+        val mimeType = MediaStoreUtils.resolveMimeType(context, uri, intent.type)
         if (mimeType == null || (!mimeType.startsWith("image/") && !mimeType.startsWith("video/"))) {
           callback(Result.success(null))
           return@launch