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

@@ -1,10 +1,13 @@
 package im.angry.openeuicc.ui.wizard
 
 import android.os.Bundle
-import android.util.Patterns
+import android.text.InputType
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.view.inputmethod.EditorInfo
+import androidx.annotation.DrawableRes
+import androidx.core.content.ContextCompat
 import androidx.core.widget.addTextChangedListener
 import com.google.android.material.textfield.TextInputLayout
 import im.angry.openeuicc.common.R
@@ -48,8 +51,13 @@ class DownloadWizardDetailsFragment : DownloadWizardActivity.DownloadWizardStepF
         matchingId = view.requireViewById(R.id.profile_download_code)
         confirmationCode = view.requireViewById(R.id.profile_download_confirmation_code)
         imei = view.requireViewById(R.id.profile_download_imei)
-        smdp.editText!!.addTextChangedListener {
+        smdp.editText!!.addTextChangedListener { updateInputCompleteness() }
-            updateInputCompleteness()
+        matchingId.editText!!.addTextChangedListener { updateInputCompleteness() }
+        confirmationCode.editText!!.addTextChangedListener { updateInputCompleteness() }
+        imei.editText!!.addTextChangedListener { updateInputCompleteness() }
+        confirmationCode.setEndIconOnClickListener {
+            onConfirmationCodeEndIconClick(confirmationCode)
+            validate()
         }
         return view
     }
@@ -69,7 +77,84 @@ class DownloadWizardDetailsFragment : DownloadWizardActivity.DownloadWizardStepF
     }
 
     private fun updateInputCompleteness() {
-        inputComplete = Patterns.DOMAIN_NAME.matcher(smdp.editText!!.text).matches()
+        validate()
+        val layouts = arrayOf(smdp, matchingId, confirmationCode, imei)
+        for (layout in layouts) layout.isErrorEnabled = layout.error != null
+        inputComplete = layouts.all { it.error == null }
         refreshButtons()
     }
-}
+
+    private fun validate() {
+        smdp.error = smdp.editText!!.text?.let {
+            if (it.isEmpty()) return@let getString(R.string.download_wizard_details_error_address_required)
+            if (it.contains("://")) return@let getString(R.string.download_wizard_details_error_cannot_url)
+            val (host, port) = splitHostPort(it)
+            if (isFQDN(host) && port in 1..65535) return@let null
+            getString(R.string.download_wizard_details_error_address_incorrect_format)
+        }
+        matchingId.error = matchingId.editText!!.text?.let {
+            if (isMatchingID(it)) return@let null
+            getString(R.string.download_wizard_details_error_matching_id_incorrect_format)
+        }
+        confirmationCode.error = confirmationCode.editText!!.let {
+            if (it.text.isEmpty()) return@let null
+            val passed = when (it.inputType and EditorInfo.TYPE_MASK_CLASS) {
+                EditorInfo.TYPE_CLASS_NUMBER -> it.text.all(Char::isDigit)
+                EditorInfo.TYPE_CLASS_TEXT -> true
+                else -> return@let null
+            }
+            if (passed) return@let null
+            getString(R.string.download_wizard_details_error_confirmation_code_incorrect_format)
+        }
+        imei.error = imei.editText!!.text?.let {
+            if (it.isEmpty()) return@let null
+            if (it.length == 15 && it.all(Char::isDigit) && luhnValid(it)) return@let null
+            getString(R.string.download_wizard_details_error_imei_incorrect_format)
+        }
+    }
+
+    private fun onConfirmationCodeEndIconClick(layout: TextInputLayout) {
+        val editText = layout.editText ?: return
+        fun getDrawable(@DrawableRes resId: Int) =
+            ContextCompat.getDrawable(requireActivity(), resId)
+        editText.inputType = when (editText.inputType and EditorInfo.TYPE_MASK_CLASS) {
+            EditorInfo.TYPE_CLASS_NUMBER -> InputType.TYPE_CLASS_TEXT or InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD
+            EditorInfo.TYPE_CLASS_TEXT -> InputType.TYPE_CLASS_NUMBER
+            else -> EditorInfo.TYPE_NULL
+        }
+        layout.endIconDrawable = when (editText.inputType and EditorInfo.TYPE_MASK_CLASS) {
+            EditorInfo.TYPE_CLASS_NUMBER -> getDrawable(R.drawable.ic_format_number)
+            EditorInfo.TYPE_CLASS_TEXT -> getDrawable(R.drawable.ic_format_text)
+            else -> null
+        }
+    }
+}
+
+private fun splitHostPort(input: CharSequence): Pair<CharSequence, Int?> {
+    val portIndex = input.lastIndexOf(':')
+    if (portIndex == -1) return Pair(input, 443)
+    return Pair(
+        input.slice(0 until portIndex),
+        input.slice(portIndex + 1 until input.length).toString().toIntOrNull()
+    )
+}
+
+private fun isFQDN(input: CharSequence): Boolean {
+    if (input.isEmpty() || input.length > 255) return false
+    if (!input.contains('.')) return false
+    for (label in input.split('.')) {
+        if (label.isEmpty() || label.length > 63) return false
+        if (label.all { it.isLetterOrDigit() || it == '-' }) continue
+        return false
+    }
+    return true
+}
+
+private fun isMatchingID(input: CharSequence) =
+    input.isEmpty() || input.all { it.isLetterOrDigit() || it == '-' }
+
+private fun luhnValid(input: CharSequence) = input
+    .map(Char::digitToInt)
+    .mapIndexed { index, digit -> if (index % 2 == 0) digit else digit * 2 }
+    .sumOf { if (it > 9) it - 9 else it }
+    .rem(10) == 0

app-common/src/main/res/drawable/ic_format_number.xml

@@ -0,0 +1,11 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:alpha="0.8"
+    android:tint="@android:color/white"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M7 15H5.5v-4.5H4V9h3v6zm6.5-1.5h-3v-1h2c0.55 0 1-0.45 1-1V10c0-0.55-0.45-1-1-1H9v1.5h3v1h-2c-0.55 0-1 0.45-1 1V15h4.5v-1.5zm6 0.5v-4c0-0.55-0.45-1-1-1H15v1.5h3v1h-2v1h2v1h-3V15h3.5c0.55 0 1-0.45 1-1z" />
+</vector>

app-common/src/main/res/drawable/ic_format_text.xml

@@ -0,0 +1,11 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:alpha="0.8"
+    android:tint="@android:color/white"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M21 11h-1.5v-0.5h-2v3h2V13H21v1c0 0.55-0.45 1-1 1h-3c-0.55 0-1-0.45-1-1v-4c0-0.55 0.45-1 1-1h3c0.55 0 1 0.45 1 1v1zM8 10v5H6.5v-1.5h-2V15H3v-5c0-0.55 0.45-1 1-1h3c0.55 0 1 0.45 1 1zm-1.5 0.5h-2V12h2v-1.5zm7 1.5c0.55 0 1 0.45 1 1v1c0 0.55-0.45 1-1 1h-4V9h4c0.55 0 1 0.45 1 1v1c0 0.55-0.45 1-1 1zM11 10.5v0.75h2V10.5h-2zm2 2.25h-2v0.75h2v-0.75z" />
+</vector>

app-common/src/main/res/layout/fragment_download_details.xml

@@ -11,18 +11,18 @@
 
         <TextView
             android:id="@+id/download_wizard_details_title"
-            android:text="@string/download_wizard_details"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:gravity="center_horizontal"
-            android:textSize="20sp"
-            android:layout_marginTop="20dp"
-            android:layout_marginBottom="20dp"
             android:layout_marginStart="60dp"
+            android:layout_marginTop="20dp"
             android:layout_marginEnd="60dp"
-            app:layout_constraintStart_toStartOf="parent"
+            android:layout_marginBottom="20dp"
-            app:layout_constraintEnd_toEndOf="parent"
+            android:gravity="center_horizontal"
+            android:text="@string/download_wizard_details"
+            android:textSize="20sp"
             app:layout_constrainedWidth="true"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="parent" />
 
         <com.google.android.material.textfield.TextInputLayout
@@ -32,10 +32,11 @@
             android:hint="@string/profile_download_server">
 
             <com.google.android.material.textfield.TextInputEditText
-                android:maxLines="1"
-                android:inputType="text"
                 android:layout_width="match_parent"
-                android:layout_height="match_parent" />
+                android:layout_height="match_parent"
+                android:inputType="textVisiblePassword"
+                android:maxLines="1"
+                android:typeface="monospace" />
 
         </com.google.android.material.textfield.TextInputLayout>
 
@@ -43,14 +44,14 @@
             android:id="@+id/profile_download_code"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
-            android:hint="@string/profile_download_code"
+            android:hint="@string/profile_download_code">
-            app:passwordToggleEnabled="true">
 
             <com.google.android.material.textfield.TextInputEditText
-                android:maxLines="1"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
-                android:inputType="textPassword" />
+                android:inputType="textVisiblePassword"
+                android:maxLines="1"
+                android:typeface="monospace" />
 
         </com.google.android.material.textfield.TextInputLayout>
 
@@ -59,13 +60,16 @@
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:hint="@string/profile_download_confirmation_code"
-            app:passwordToggleEnabled="true">
+            app:endIconCheckable="true"
+            app:endIconDrawable="@drawable/ic_format_number"
+            app:endIconMode="custom">
 
             <com.google.android.material.textfield.TextInputEditText
-                android:maxLines="1"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
-                android:inputType="textPassword" />
+                android:inputType="number"
+                android:maxLines="1"
+                android:typeface="monospace" />
 
         </com.google.android.material.textfield.TextInputLayout>
 
@@ -75,29 +79,29 @@
             android:layout_height="wrap_content"
             android:layout_marginTop="15dp"
             android:layout_marginBottom="6dp"
-            android:hint="@string/profile_download_imei"
+            android:hint="@string/profile_download_imei">
-            app:passwordToggleEnabled="true">
 
             <com.google.android.material.textfield.TextInputEditText
-                android:maxLines="1"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
-                android:inputType="numberPassword" />
+                android:inputType="number"
+                android:maxLines="1"
+                android:typeface="monospace" />
 
         </com.google.android.material.textfield.TextInputLayout>
 
         <androidx.constraintlayout.helper.widget.Flow
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:orientation="vertical"
             android:layout_marginHorizontal="20dp"
+            android:orientation="vertical"
             app:constraint_referenced_ids="profile_download_server,profile_download_code,profile_download_confirmation_code,profile_download_imei"
             app:flow_verticalGap="16dp"
-            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constrainedWidth="true"
-            app:layout_constraintTop_toBottomOf="@id/download_wizard_details_title"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constrainedWidth="true" />
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/download_wizard_details_title" />
 
     </androidx.constraintlayout.widget.ConstraintLayout>
 

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

@@ -81,6 +81,12 @@
     <string name="download_wizard_method_clipboard">Load from Clipboard</string>
     <string name="download_wizard_method_manual">Enter manually</string>
     <string name="download_wizard_details">Input or confirm details for downloading your eSIM:</string>
+    <string name="download_wizard_details_error_address_required">Server address is required</string>
+    <string name="download_wizard_details_error_cannot_url">Server address not is URL</string>
+    <string name="download_wizard_details_error_address_incorrect_format">Incorrect Server address</string>
+    <string name="download_wizard_details_error_matching_id_incorrect_format">Incorrect Matching ID format</string>
+    <string name="download_wizard_details_error_confirmation_code_incorrect_format">Incorrect Confirmation Code format</string>
+    <string name="download_wizard_details_error_imei_incorrect_format">Incorrect IMEI format</string>
     <string name="download_wizard_progress">Downloading your eSIM…</string>
     <string name="download_wizard_progress_step_preparing">Preparing</string>
     <string name="download_wizard_progress_step_connecting">Establishing connection to server</string>