feat: liquid deep-links

algorandfoundation · May 14, 2024 · 354ee32 · 354ee32
1 parent 61b175f
commit 354ee32
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Showing 3 changed files with 51 additions and 16 deletions.
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
@@ -24,9 +24,14 @@
                 android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
-
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW"/>
+                <category android:name="android.intent.category.DEFAULT"/>
+                <category android:name="android.intent.category.BROWSABLE"/>
+                <data android:scheme="liquid"/>
+            </intent-filter>
         </activity>
     </application>
 

diff --git a/app/src/main/java/foundation/algorand/demo/MainActivity.kt b/app/src/main/java/foundation/algorand/demo/MainActivity.kt
@@ -3,6 +3,7 @@ package foundation.algorand.demo
 import android.R.attr.duration
 import android.app.Activity
 import android.content.Intent
+import android.net.Uri
 import android.os.Build
 import android.os.Bundle
 import android.os.StrictMode
@@ -102,6 +103,23 @@ class MainActivity : AppCompatActivity() {
         fido2Client = Fido2ApiClient(this@MainActivity)
         scanner = GmsBarcodeScanning.getClient(this@MainActivity)
         executor = ContextCompat.getMainExecutor(this)
+
+        // Get Intent Data
+        val intentUri: Uri? = intent?.data
+        if (intentUri !== null) {
+            Log.d(TAG, "Intent Detected: $intentUri")
+            val msg = AuthMessage.fromUri(intentUri)
+            viewModel.setMessage(msg)
+            signalClient = SignalClient(msg.origin, this@MainActivity, httpClient)
+            lifecycleScope.launch {
+                if (viewModel.credential.value === null) {
+                    register(msg)
+                } else {
+                    authenticate(msg, viewModel.credential.value!!)
+                }
+            }
+        }
+
         // View Bindings
         binding = ActivityMainBinding.inflate(layoutInflater)
         binding.lifecycleOwner = this

diff --git a/auth/src/main/java/foundation/algorand/auth/connect/AuthMessage.kt b/auth/src/main/java/foundation/algorand/auth/connect/AuthMessage.kt
@@ -1,18 +1,18 @@
 package foundation.algorand.auth.connect
 
+import android.net.Uri
 import android.util.Log
 import com.google.mlkit.vision.barcode.common.Barcode
 import org.json.JSONObject
-import java.net.URI
 import javax.inject.Inject
 
-private fun URI.findParameterValue(parameterName: String): String? {
-    return query.split('&').map {
+private fun Uri.findParameterValue(parameterName: String): String? {
+    return query?.split('&')?.map {
         val parts = it.split('=')
         val name = parts.firstOrNull() ?: ""
         val value = parts.drop(1).firstOrNull() ?: ""
         Pair(name, value)
-    }.firstOrNull{it.first == parameterName}?.second
+    }?.firstOrNull{it.first == parameterName}?.second
 }
 class AuthMessage @Inject constructor(
     var origin: String,
@@ -21,29 +21,41 @@ class AuthMessage @Inject constructor(
 
     companion object {
         const val TAG = "connect.Message"
+        fun fromUri(uri: Uri): AuthMessage {
+            Log.d(TAG, "fromUri($uri)")
+            val origin = "https://${uri.host}"
+            val requestId = uri.findParameterValue("requestId")!!.toDouble()
+            return AuthMessage(origin, requestId)
+        }
         /**
-         * Parse the `Barcode`
-         *
-         * uses the following url scheme:
+         * Parse the Uri string
          *
          * `liquid://<ORIGIN>/?requestId=<REQUEST_ID>`
          */
-        fun fromBarcode(barcode: Barcode): AuthMessage {
-            Log.d(TAG, "fromBarcode(${barcode.displayValue})")
-            val stringContents = barcode.displayValue ?: throw Exception("Barcode does not contain a display value")
+        fun fromString(stringContents: String): AuthMessage {
+            Log.d(TAG, "fromString($stringContents)")
             if(stringContents.startsWith("liquid://")) {
-                val uri = URI(stringContents)
-                val origin = "https://${uri.host}"
-                val requestId = uri.findParameterValue("requestId")!!.toDouble()
-                return AuthMessage(origin, requestId)
+               return fromUri(Uri.parse(stringContents))
             } else {
                 // Fallback to JSON renderer
-                val json = JSONObject(barcode.displayValue.toString())
+                val json = JSONObject(stringContents)
                 val origin = json.get("origin").toString()
                 val requestId = json.get("requestId").toString().toDouble()
                 return AuthMessage(origin, requestId)
             }
         }
+        /**
+         * Parse the `Barcode`
+         *
+         * uses the following url scheme:
+         *
+         * `liquid://<ORIGIN>/?requestId=<REQUEST_ID>`
+         */
+        fun fromBarcode(barcode: Barcode): AuthMessage {
+            Log.d(TAG, "fromBarcode(${barcode.displayValue})")
+            val stringContents = barcode.displayValue ?: throw Exception("Barcode does not contain a display value")
+            return fromString(stringContents)
+        }
     }
     fun toJSON() : JSONObject {
         val result = JSONObject()