Share extension Android and iOS implementation

android/app/build.gradle

@@ -246,6 +246,8 @@ dependencies {
     implementation "com.squareup.okhttp3:okhttp-urlconnection:4.+"
 
     implementation("androidx.lifecycle:lifecycle-viewmodel-ktx:2.4.0")
+
+    implementation("com.google.code.gson:gson:2.8.9")
 }
 
 apply plugin: 'com.google.gms.google-services'  // Google Play services Gradle plugin

android/app/src/main/AndroidManifest.xml

@@ -99,6 +99,52 @@
                 <data android:scheme="https" android:host="staging.new.expensify.com" android:pathPrefix="/track-expense"/>
                 <data android:scheme="https" android:host="staging.new.expensify.com" android:pathPrefix="/submit-expense"/>
             </intent-filter>
+             <intent-filter>
+                <action android:name="android.intent.action.SEND" />
+                <category android:name="android.intent.category.DEFAULT" />
+
+                <!-- Images -->
+                <data android:mimeType="image/jpg" />
+                <data android:mimeType="image/jpeg" />
+                <data android:mimeType="image/gif" />
+                <data android:mimeType="image/png" />
+                <data android:mimeType="image/tif" />
+                <data android:mimeType="image/tiff" />
+
+                <!-- Documents -->
+                <data android:mimeType="application/pdf" />
+                <data android:mimeType="application/msword" />
+                <data android:mimeType="application/vnd.openxmlformats-officedocument.wordprocessingml.document" />
+                <data android:mimeType="application/rtf" />
+                <data android:mimeType="application/zip" />
+                <data android:mimeType="message/rfc822" />
+
+                <!-- Text / HTML -->
+                <data android:mimeType="text/plain" />
+                <data android:mimeType="text/html" />
+                <data android:mimeType="text/xml" />
+
+                <!-- Audio / Video -->
+                <data android:mimeType="audio/mpeg" />
+                <data android:mimeType="audio/aac" />
+                <data android:mimeType="audio/flac" />
+                <data android:mimeType="audio/wav" />
+                <data android:mimeType="audio/x-wav" />
+                <data android:mimeType="audio/mp3" />
+                <data android:mimeType="audio/vorbis" />
+                <data android:mimeType="audio/x-vorbis" />
+                <data android:mimeType="audio/opus" />
+
+                <data android:mimeType="video/mp4" />
+                <data android:mimeType="video/mp2t" />
+                <data android:mimeType="video/webm" />
+                <data android:mimeType="video/avc" />
+                <data android:mimeType="video/hevc" />
+                <data android:mimeType="video/x-vnd.on2.vp8" />
+                <data android:mimeType="video/x-vnd.on2.vp9" />
+                <data android:mimeType="video/av01" />
+
+            </intent-filter>
         </activity>
 
         <meta-data

android/app/src/main/java/com/expensify/chat/ExpensifyAppPackage.java

@@ -22,6 +22,7 @@ public List<NativeModule> createNativeModules(
         List<NativeModule> modules = new ArrayList<>();
 
         modules.add(new StartupTimer(reactContext));
+        modules.add(new ShareActionHandlerModule(reactContext));
 
         return modules;
     }

android/app/src/main/java/com/expensify/chat/MainActivity.kt

@@ -1,18 +1,20 @@
 package com.expensify.chat
 
-import expo.modules.ReactActivityDelegateWrapper
-
+import android.content.Intent
 import android.content.pm.ActivityInfo
 import android.os.Bundle
+import android.util.Log
 import android.view.KeyEvent
 import android.view.View
 import android.view.WindowInsets
 import com.expensify.chat.bootsplash.BootSplash
+import com.expensify.chat.intenthandler.IntentHandlerFactory
 import com.expensify.reactnativekeycommand.KeyCommandModule
 import com.facebook.react.ReactActivity
 import com.facebook.react.ReactActivityDelegate
 import com.facebook.react.defaults.DefaultNewArchitectureEntryPoint.fabricEnabled
 import com.facebook.react.defaults.DefaultReactActivityDelegate
+import expo.modules.ReactActivityDelegateWrapper
 
 import com.oblador.performance.RNPerformance
 
@@ -52,6 +54,25 @@ class MainActivity : ReactActivity() {
                 defaultInsets.systemWindowInsetBottom
             )
         }
+
+        if (intent != null) {
+            handleIntent(intent)
+        }
+    }
+
+    override fun onNewIntent(intent: Intent) {
+        super.onNewIntent(intent)
+        setIntent(intent) // Must store the new intent unless getIntent() will return the old one
+        handleIntent(intent)
+    }
+
+    private fun handleIntent(intent: Intent) {
+        try {
+            val intenthandler = IntentHandlerFactory.getIntentHandler(this, intent.type, intent.toString())
+            intenthandler?.handle(intent)
+        } catch (exception: Exception) {
+            Log.e("handleIntentException", exception.toString())
+        }
     }
 
     /**

android/app/src/main/java/com/expensify/chat/ShareActionHandlerModule.kt

@@ -0,0 +1,89 @@
+package com.expensify.chat
+
+import android.content.Context
+import android.graphics.BitmapFactory
+import android.media.MediaMetadataRetriever
+import com.expensify.chat.intenthandler.IntentHandlerConstants
+import com.facebook.react.bridge.Callback
+import com.facebook.react.bridge.ReactApplicationContext
+import com.facebook.react.bridge.ReactContextBaseJavaModule
+import android.util.Log
+import com.facebook.react.bridge.ReactMethod
+import org.json.JSONObject
+import java.io.File
+
+class ShareActionHandlerModule(reactContext: ReactApplicationContext) :
+    ReactContextBaseJavaModule(reactContext) {
+
+    override fun getName(): String {
+        return "ShareActionHandlerModule"
+    }
+
+    @ReactMethod
+    fun processFiles(callback: Callback) {
+        try {
+            val sharedPreferences = reactApplicationContext.getSharedPreferences(
+                IntentHandlerConstants.preferencesFile,
+                Context.MODE_PRIVATE
+            )
+
+            val shareObjectString = sharedPreferences.getString(IntentHandlerConstants.shareObjectProperty, null)
+            if (shareObjectString == null) {
+                callback.invoke("No data found", null)
+                return
+            }
+
+            val shareObject = JSONObject(shareObjectString)
+            val content = shareObject.optString("content")
+            val mimeType = shareObject.optString("mimeType")
+            val fileUriPath = "file://$content"
+            val timestamp = System.currentTimeMillis()
+
+            val file = File(content)
+            if (!file.exists()) {
+                val textObject = JSONObject().apply {
+                    put("id", "text")
+                    put("content", content)
+                    put("mimeType", "txt")
+                    put("processedAt", timestamp)
+                }
+                callback.invoke(textObject.toString())
+                return
+            }
+
+            val identifier = file.name
+            var aspectRatio = 0.0f
+
+            if (mimeType.startsWith("image/")) {
+                val options = BitmapFactory.Options().apply { inJustDecodeBounds = true }
+                BitmapFactory.decodeFile(content, options)
+                aspectRatio = if (options.outHeight != 0) options.outWidth.toFloat() / options.outHeight else 1.0f
+            } else if (mimeType.startsWith("video/")) {
+                val retriever = MediaMetadataRetriever()
+                try {
+                    retriever.setDataSource(content)
+                    val videoWidth = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_WIDTH)?.toFloatOrNull() ?: 1f
+                    val videoHeight = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_HEIGHT)?.toFloatOrNull() ?: 1f
+                    if (videoHeight != 0f) aspectRatio = videoWidth / videoHeight
+                } catch (e: Exception) {
+                    Log.e("ShareActionHandlerModule", "Error retrieving video metadata: ${e.message}")
+                } finally {
+                    retriever.release()
+                }
+            }
+
+            val fileData = JSONObject().apply {
+                put("id", identifier)
+                put("content", fileUriPath)
+                put("mimeType", mimeType)
+                put("processedAt", timestamp)
+                put("aspectRatio", aspectRatio)
+            }
+
+            callback.invoke(fileData.toString())
+
+        } catch (e: Exception) {
+            callback.invoke(e.toString(), null)
+        }
+    }
+}

android/app/src/main/java/com/expensify/chat/intentHandler/AbstractIntentHandler.kt

@@ -0,0 +1,19 @@
+package com.expensify.chat.intenthandler
+
+import android.content.Context
+import com.expensify.chat.utils.FileUtils.clearInternalStorageDirectory
+
+abstract class AbstractIntentHandler: IntentHandler {
+    override fun onCompleted() {}
+
+    protected fun clearTemporaryFiles(context: Context) {
+        // Clear data present in the shared preferences
+        val sharedPreferences = context.getSharedPreferences(IntentHandlerConstants.preferencesFile, Context.MODE_PRIVATE)
+        val editor = sharedPreferences.edit()
+        editor.clear()
+        editor.apply()
+
+        // Clear leftover temporary files from previous share attempts
+        clearInternalStorageDirectory(context)
+    }
+}

android/app/src/main/java/com/expensify/chat/intentHandler/FileIntentHandler.kt

@@ -0,0 +1,42 @@
+package com.expensify.chat.intenthandler
+
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import com.expensify.chat.utils.FileUtils
+
+class FileIntentHandler(private val context: Context) : AbstractIntentHandler() {
+    override fun handle(intent: Intent): Boolean {
+        super.clearTemporaryFiles(context)
+        when(intent.action) {
+             Intent.ACTION_SEND -> {
+                 handleSingleFileIntent(intent, context)
+                 onCompleted()
+                 return true
+             }
+         }
+         return false
+    }
+
+    private fun handleSingleFileIntent(intent: Intent, context: Context) {
+        (intent.getParcelableExtra<Uri>(Intent.EXTRA_STREAM))?.let { fileUri ->
+            val resultingPath: String? = FileUtils.copyUriToStorage(fileUri, context)
+
+            if (resultingPath != null) {
+                val shareFileObject = ShareFileObject(resultingPath, intent.type)
+
+                val sharedPreferences = context.getSharedPreferences(IntentHandlerConstants.preferencesFile, Context.MODE_PRIVATE)
+                val editor = sharedPreferences.edit()
+                editor.putString(IntentHandlerConstants.shareObjectProperty, shareFileObject.toString())
+                editor.apply()
+            }
+        }
+    }
+
+    override fun onCompleted() {
+        val uri: Uri = Uri.parse("new-expensify://share/root")
+        val deepLinkIntent = Intent(Intent.ACTION_VIEW, uri)
+        deepLinkIntent.flags = Intent.FLAG_ACTIVITY_NEW_TASK
+        context.startActivity(deepLinkIntent)
+    }
+}

android/app/src/main/java/com/expensify/chat/intentHandler/IntentHandler.kt

@@ -0,0 +1,12 @@
+package com.expensify.chat.intenthandler
+
+import android.content.Intent
+
+object IntentHandlerConstants {
+    const val preferencesFile = "shareActionHandler"
+    const val shareObjectProperty = "shareObject"
+}
+interface IntentHandler {
+    fun handle(intent: Intent): Boolean
+    fun onCompleted()
+}

android/app/src/main/java/com/expensify/chat/intentHandler/IntentHandlerFactory.kt

@@ -0,0 +1,15 @@
+package com.expensify.chat.intenthandler
+
+import android.content.Context
+
+object IntentHandlerFactory {
+    fun getIntentHandler(context: Context, mimeType: String?, rest: String?): IntentHandler? {
+        if (mimeType == null) return null
+
+        return when {
+            mimeType.matches(Regex("(image|application|audio|video)/.*")) -> FileIntentHandler(context)
+            mimeType.startsWith("text/") -> TextIntentHandler(context)
+            else -> throw UnsupportedOperationException("Unsupported MIME type: $mimeType")
+        }
+    }
+}

android/app/src/main/java/com/expensify/chat/intentHandler/ShareFileObject.kt

@@ -0,0 +1,9 @@
+package com.expensify.chat.intenthandler
+
+import com.google.gson.Gson
+
+data class ShareFileObject(val content: String, val mimeType: String?) {
+    override fun toString(): String {
+        return Gson().toJson(this)
+    }
+}

android/app/src/main/java/com/expensify/chat/intentHandler/TextIntentHandler.kt

@@ -0,0 +1,76 @@
+package com.expensify.chat.intenthandler
+
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import com.expensify.chat.utils.FileUtils
+
+
+class TextIntentHandler(private val context: Context) : AbstractIntentHandler() {
+    override fun handle(intent: Intent): Boolean {
+        super.clearTemporaryFiles(context)
+        when(intent.action) {
+            Intent.ACTION_SEND -> {
+                handleTextIntent(intent, context)
+                onCompleted()
+                return true
+            }
+        }
+        return false
+    }
+
+    private fun handleTextIntent(intent: Intent, context: Context) {
+        when {
+            intent.type == "text/plain" -> {
+                val extras = intent.extras
+                if (extras != null) {
+                    when {
+                        extras.containsKey(Intent.EXTRA_STREAM) -> {
+                            handleTextFileIntent(intent, context)
+                        }
+                        extras.containsKey(Intent.EXTRA_TEXT) -> {
+                            handleTextPlainIntent(intent, context)
+                        }
+                        else -> {
+                            throw UnsupportedOperationException("Unknown text/plain content")
+                        }
+                    }
+                }
+            }
+            Regex("text/.*").matches(intent.type ?: "") -> handleTextFileIntent(intent, context)
+            else -> throw UnsupportedOperationException("Unsupported MIME type: ${intent.type}")
+        }
+    }
+
+    private fun saveToSharedPreferences(key: String, value: String) {
+        val sharedPreferences = context.getSharedPreferences(IntentHandlerConstants.preferencesFile, Context.MODE_PRIVATE)
+        val editor = sharedPreferences.edit()
+        editor.putString(key, value)
+        editor.apply()
+    }
+
+    private fun handleTextFileIntent(intent: Intent, context: Context) {
+        (intent.getParcelableExtra<Uri>(Intent.EXTRA_STREAM))?.let { fileUri ->
+            val resultingPath: String? = FileUtils.copyUriToStorage(fileUri, context)
+            if (resultingPath != null) {
+                val shareFileObject = ShareFileObject(resultingPath, intent.type)
+                saveToSharedPreferences(IntentHandlerConstants.shareObjectProperty, shareFileObject.toString())
+            }
+        }
+    }
+
+    private fun handleTextPlainIntent(intent: Intent, context: Context) {
+            var intentTextContent = intent.getStringExtra(Intent.EXTRA_TEXT)
+            if(intentTextContent != null) {
+                val shareFileObject = ShareFileObject(intentTextContent, intent.type)
+                saveToSharedPreferences(IntentHandlerConstants.shareObjectProperty, shareFileObject.toString())
+            }
+    }
+
+    override fun onCompleted() {
+        val uri: Uri = Uri.parse("new-expensify://share/root")
+        val deepLinkIntent = Intent(Intent.ACTION_VIEW, uri)
+        deepLinkIntent.flags = Intent.FLAG_ACTIVITY_NEW_TASK
+        context.startActivity(deepLinkIntent)
+    }
+}