More USSD and MMI code handling improvements

Removed support for secret codes (not permitted)

app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt

@@ -1699,13 +1699,6 @@ class BaresipService: Service() {
         val ua = UserAgent.ofUap(uap)
         if (ua != null && ua.account.isMobile) {
             val user = Utils.uriUserPart(uri)
-            if (user.startsWith("*#*#") && user.endsWith("#*#*")) {
-                val code = user.substring(4, user.length - 4)
-                val intent = Intent("android.provider.Telephony.SECRET_CODE", "android_secret_code://$code".toUri())
-                sendBroadcast(intent)
-                postServiceEvent(ServiceEvent("ussd response", arrayListOf(uap, user, ""), System.nanoTime()))
-                return
-            }
             if (user == "*#06#") {
                 val imei = getDeviceId(this)
                 postServiceEvent(ServiceEvent("imei", arrayListOf(uap, user, imei), System.nanoTime()))
@@ -2359,7 +2352,7 @@ class BaresipService: Service() {
         return try {
             tm.imei ?: tm.meid ?: "N/A"
         } catch (_: SecurityException) {
-            "N/A"
+            getString(R.string.permission_denied)
         }
     }
 

app/src/main/kotlin/com/tutpro/baresip/MainScreen.kt

@@ -2083,7 +2083,11 @@ private fun makeCall(ctx: Context, viewModel: ViewModel, uriText: String,
                 extras.putBundle(TelecomManager.EXTRA_OUTGOING_CALL_EXTRAS, callExtras)
                 try {
                     Log.i(TAG, "Placing Telecom PSTN call to $uri with uap=${ua.uap}")
-                    tm.placeCall(uri.toUri(), extras)
+                    val telecomUri = if (uri.startsWith("tel:"))
+                        Uri.fromParts("tel", uri.substring(4), null)
+                    else
+                        uri.toUri()
+                    tm.placeCall(telecomUri, extras)
                 } catch (e: SecurityException) {
                     error = "placeCall failed: ${e.message}"
                 }

app/src/main/kotlin/com/tutpro/baresip/Utils.kt

@@ -136,11 +136,10 @@ object Utils {
     fun uriUserPart(uri: String): String {
         return if (uri.contains("@"))
             uri.substringAfter(":").substringBefore("@")
+        else if (uri.startsWith("tel:"))
+            uri.substringAfter(":").substringBefore(";")
         else
-            if (isTelUri(uri))
+            ""
-                uri.substringAfter(":").substringBefore(";")
-            else
-                ""
     }
 
     fun uriMatch(firstUri: String, secondUri: String): Boolean {
@@ -220,7 +219,8 @@ object Utils {
             pairs.fold(this) { acc, (old, new) -> acc.replace(old, new, ignoreCase = true) }
 
     fun uriUnescape(uri: String): String {
-        return uri.replace("%2B" to "+", "%3A" to ":", "%3B" to ";", "%40" to "@", "%3D" to "=")
+        return uri.replace("%2B" to "+", "%3A" to ":", "%3B" to ";", "%40" to "@", "%3D" to "=",
+            "%23" to "#", "%2A" to "*")
     }
 
     fun aorDomain(aor: String): String {

app/src/main/res/values-fi/strings.xml

@@ -546,6 +546,7 @@
     <string name="anonymous">Anonyymi</string>
     <string name="unknown">Tuntematon</string>
     <string name="invalid_sip_or_tel_uri">Virheellinen SIP tai puh. URI \'%1$s\'</string>
+    <string name="permission_denied">Lupa evätty</string>
     <!-- Main Activity -->
     <string name="backup">Tallenna</string>
     <string name="restore">Palauta</string>

app/src/main/res/values/strings.xml

@@ -530,6 +530,7 @@
     <string name="dots" translatable="false">…</string>
     <string name="bullet_item" translatable="false">\u2022 %1$s</string>
     <string name="invalid_sip_or_tel_uri">Invalid SIP or tel URI \'%1$s\'</string>
+    <string name="permission_denied">Permission Denied</string>
     <string name="baresip" translatable="false">baresip</string>
     <string name="android" translatable="false">Android</string>
     <!-- Main Activity -->