Update call links parsing.

app/src/main/AndroidManifest.xml

@@ -602,10 +602,13 @@
 
         <intent-filter android:autoVerify="true">
             <action android:name="android.intent.action.VIEW" />
+
             <category android:name="android.intent.category.DEFAULT" />
             <category android:name="android.intent.category.BROWSABLE" />
-            <data android:scheme="https"
-                android:host="signal.link" />
+
+            <data android:scheme="sgnl" />
+            <data android:scheme="https" />
+            <data android:host="signal.link" />
         </intent-filter>
     </activity>
 

app/src/main/java/org/thoughtcrime/securesms/calls/links/CallLinks.kt

@@ -6,8 +6,8 @@
 package org.thoughtcrime.securesms.calls.links
 
 import io.reactivex.rxjava3.core.Observable
-import org.signal.core.util.Hex
 import org.signal.core.util.logging.Log
+import org.signal.ringrtc.CallException
 import org.signal.ringrtc.CallLinkRootKey
 import org.thoughtcrime.securesms.database.CallLinkTable
 import org.thoughtcrime.securesms.database.DatabaseObserver
@@ -25,7 +25,7 @@ object CallLinks {
 
   private val TAG = Log.tag(CallLinks::class.java)
 
-  fun url(linkKeyBytes: ByteArray) = "$LINK_PREFIX${Hex.dump(linkKeyBytes)}"
+  fun url(linkKeyBytes: ByteArray) = "$LINK_PREFIX${CallLinkRootKey(linkKeyBytes)}"
 
   fun watchCallLink(roomId: CallLinkRoomId): Observable<CallLinkTable.CallLink> {
     return Observable.create { emitter ->
@@ -82,7 +82,11 @@ object CallLinks {
       return null
     }
 
-    // TODO Parse the key into a byte array
-    return null
+    return try {
+      CallLinkRootKey(key)
+    } catch (e: CallException) {
+      Log.w(TAG, "Invalid root key found in fragment query string.")
+      null
+    }
   }
 }