app-common/src/main/java/im/angry/openeuicc/ui/ProfileRenameFragment.kt

@@ -1,38 +1,64 @@
 package im.angry.openeuicc.ui
 
 import android.app.Dialog
+import android.content.DialogInterface
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.widget.EditText
 import android.widget.ProgressBar
 import android.widget.Toast
 import androidx.appcompat.widget.Toolbar
+import androidx.core.view.isVisible
+import androidx.core.widget.addTextChangedListener
 import androidx.lifecycle.lifecycleScope
 import com.google.android.material.textfield.TextInputLayout
 import im.angry.openeuicc.common.R
 import im.angry.openeuicc.service.EuiccChannelManagerService.Companion.waitDone
 import im.angry.openeuicc.util.*
 import kotlinx.coroutines.launch
+import net.typeblog.lpac_jni.LocalProfileAssistant.ProfileNicknameException as NicknameException
+import net.typeblog.lpac_jni.LocalProfileAssistant.ProfileNicknameException.Kind as SetFailedKind
 
 class ProfileRenameFragment : BaseMaterialDialogFragment(), EuiccChannelFragmentMarker {
     companion object {
         const val TAG = "ProfileRenameFragment"
+        const val FIELD_ICCID = "iccid"
+        const val FIELD_CURRENT_NAME = "currentName"
 
         fun newInstance(slotId: Int, portId: Int, iccid: String, currentName: String): ProfileRenameFragment {
             val instance = newInstanceEuicc(ProfileRenameFragment::class.java, slotId, portId)
             instance.requireArguments().apply {
-                putString("iccid", iccid)
-                putString("currentName", currentName)
+                putString(FIELD_ICCID, iccid)
+                putString(FIELD_CURRENT_NAME, currentName)
             }
             return instance
         }
     }
 
     private lateinit var toolbar: Toolbar
-    private lateinit var profileRenameNewName: TextInputLayout
+    private lateinit var editText: EditText
     private lateinit var progress: ProgressBar
 
+    private var toast: Toast? = null
+        set(toast) {
+            field?.cancel()
+            field = toast
+            field?.show()
+        }
+
+    private val editedName: String
+        get() = editText.text.toString().trim()
+
+    private val iccid by lazy {
+        requireArguments().getString(FIELD_ICCID)!!
+    }
+
+    private val currentName by lazy {
+        requireArguments().getString(FIELD_CURRENT_NAME)!!
+    }
+
     private var renaming = false
 
     override fun onCreateView(
@@ -40,14 +66,12 @@ class ProfileRenameFragment : BaseMaterialDialogFragment(), EuiccChannelFragment
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View {
-        val view = inflater.inflate(R.layout.fragment_profile_rename, container, false)
-
-        toolbar = view.requireViewById(R.id.toolbar)
-        profileRenameNewName = view.requireViewById(R.id.profile_rename_new_name)
-        progress = view.requireViewById(R.id.progress)
-
+        val view = inflater.inflate(R.layout.fragment_profile_rename, container, false).apply {
+            toolbar = requireViewById(R.id.toolbar)
+            editText = requireViewById<TextInputLayout>(R.id.profile_rename_new_name).editText!!
+            progress = requireViewById(R.id.progress)
+        }
         toolbar.inflateMenu(R.menu.fragment_profile_rename)
-
         return view
     }
 
@@ -63,11 +87,16 @@ class ProfileRenameFragment : BaseMaterialDialogFragment(), EuiccChannelFragment
                 true
             }
         }
+        editText.addTextChangedListener {
+            val isUnchanged = it.toString().trim() == currentName
+            dialog!!.setCancelable(isUnchanged)
+            dialog!!.setCanceledOnTouchOutside(isUnchanged)
+        }
     }
 
     override fun onStart() {
         super.onStart()
-        profileRenameNewName.editText!!.setText(requireArguments().getString("currentName"))
+        editText.setText(currentName)
     }
 
     override fun onResume() {
@@ -75,6 +104,15 @@ class ProfileRenameFragment : BaseMaterialDialogFragment(), EuiccChannelFragment
         setWidthPercent(95)
     }
 
+    override fun onCancel(dialog: DialogInterface) {
+        super.onCancel(dialog)
+        toast = Toast.makeText(
+            requireContext(),
+            R.string.toast_profile_name_is_unchanged,
+            Toast.LENGTH_LONG
+        )
+    }
+
     override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
         return super.onCreateDialog(savedInstanceState).also {
             it.setCanceledOnTouchOutside(false)
@@ -82,25 +120,53 @@ class ProfileRenameFragment : BaseMaterialDialogFragment(), EuiccChannelFragment
     }
 
     private fun rename() {
-        val name = profileRenameNewName.editText!!.text.toString().trim()
-        if (name.length >= 64) {
-            Toast.makeText(context, R.string.toast_profile_name_too_long, Toast.LENGTH_LONG).show()
-            return
+        toast = when {
+            editedName.isEmpty() -> Toast.makeText(
+                requireContext(),
+                R.string.toast_profile_name_restore_defaults,
+                Toast.LENGTH_LONG
+            )
+
+            editedName == currentName -> Toast.makeText(
+                requireContext(),
+                R.string.toast_profile_name_is_unchanged,
+                Toast.LENGTH_LONG
+            )
+
+            else -> Toast.makeText(
+                requireContext(),
+                getString(R.string.toast_profile_name_changed, currentName, editedName),
+                Toast.LENGTH_LONG
+            )
         }
 
         renaming = true
         progress.isIndeterminate = true
-        progress.visibility = View.VISIBLE
+        progress.isVisible = true
 
         lifecycleScope.launch {
             ensureEuiccChannelManager()
             euiccChannelManagerService.waitForForegroundTask()
-            euiccChannelManagerService.launchProfileRenameTask(
-                slotId,
-                portId,
-                requireArguments().getString("iccid")!!,
-                name
-            ).waitDone()
+            try {
+                if (editedName != currentName) euiccChannelManagerService
+                    .launchProfileRenameTask(slotId, portId, iccid, editedName)
+                    .waitDone()
+            } catch (e: NicknameException) {
+                toast = when (e.kind) {
+                    SetFailedKind.NicknameTooLong -> Toast.makeText(
+                        requireContext(),
+                        R.string.toast_profile_name_too_long,
+                        Toast.LENGTH_LONG
+                    )
+
+                    SetFailedKind.InvalidUTF8Sequence -> Toast.makeText(
+                        requireContext(),
+                        R.string.toast_profile_name_encode_failed,
+                        Toast.LENGTH_LONG
+                    )
+                }
+                return@launch
+            }
 
             if (parentFragment is EuiccProfilesChangedListener) {
                 (parentFragment as EuiccProfilesChangedListener).onEuiccProfilesChanged()

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

@@ -28,7 +28,11 @@
     <string name="switch_did_not_refresh">The operation was successful, but your phone\'s modem refused to refresh. You might need to toggle airplane mode or reboot in order to use the new profile.</string>
 
     <string name="toast_profile_enable_failed">Cannot switch to new eSIM profile.</string>
+    <string name="toast_profile_name_changed">The profile name will be updated from \'%s\' to \'%s\'</string>
+    <string name="toast_profile_name_is_unchanged">Nickname has is unchanged</string>
     <string name="toast_profile_name_too_long">Nickname cannot be longer than 64 characters</string>
+    <string name="toast_profile_name_encode_failed">could not be encoded as UTF-8</string>
+    <string name="toast_profile_name_restore_defaults">This profile name will be restored to default</string>
     <string name="toast_profile_delete_confirm_text_mismatched">Confirmation string mismatch</string>
     <string name="toast_iccid_copied">ICCID copied to clipboard</string>
 

libs/lpac-jni/src/main/java/net/typeblog/lpac_jni/LocalProfileAssistant.kt

@@ -12,6 +12,14 @@ interface LocalProfileAssistant {
         val lastApduException: Exception?,
     ) : Exception("Failed to download profile")
 
+    data class ProfileNicknameException(val kind: Kind) :
+        Exception("Failed to set nickname profile") {
+        enum class Kind {
+            NicknameTooLong,
+            InvalidUTF8Sequence
+        }
+    }
+
     val valid: Boolean
     val profiles: List<LocalProfileInfo>
     val notifications: List<LocalProfileNotification>
@@ -40,9 +48,7 @@ interface LocalProfileAssistant {
 
     fun euiccMemoryReset()
 
-    fun setNickname(
-        iccid: String, nickname: String
-    ): Boolean
+    fun setNickname(iccid: String, nickname: String): Boolean
 
     fun close()
 }

libs/lpac-jni/src/main/java/net/typeblog/lpac_jni/impl/LocalProfileAssistantImpl.kt

@@ -239,8 +239,24 @@ class LocalProfileAssistantImpl(
         } == 0
 
     @Synchronized
-    override fun setNickname(iccid: String, nickname: String): Boolean =
-        LpacJni.es10cSetNickname(contextHandle, iccid, nickname) == 0
+    override fun setNickname(iccid: String, nickname: String): Boolean {
+        try {
+            // SGP.22 v2.2.2 (Page 205 of 268)
+            // https://www.gsma.com/solutions-and-impact/technologies/esim/wp-content/uploads/2020/06/SGP.22-v2.2.2.pdf
+            // ASN.1 definition is `profileNickname [16] UTF8String (SIZE(0..64))`
+            val length = nickname.toByteArray(Charsets.UTF_8).size
+            if (length > 64) {
+                throw LocalProfileAssistant.ProfileNicknameException(
+                    kind = LocalProfileAssistant.ProfileNicknameException.Kind.NicknameTooLong
+                )
+            }
+        } catch (e: CharacterCodingException) {
+            throw LocalProfileAssistant.ProfileNicknameException(
+                kind = LocalProfileAssistant.ProfileNicknameException.Kind.InvalidUTF8Sequence
+            )
+        }
+        return LpacJni.es10cSetNickname(contextHandle, iccid, nickname) == 0
+    }
 
     override fun euiccMemoryReset() {
         LpacJni.es10cEuiccMemoryReset(contextHandle)