From e278a208bc8298963080dfb5352acedc65aad083 Mon Sep 17 00:00:00 2001
From: Casper Bonde <c.bonde@samsung.com>
Date: Fri, 8 May 2015 15:19:03 +0200
Subject: [PATCH] SAP: Make it possible to enforce a 16-digit pin code (5/5)

This change enable the posibility to enforce using a
16-digit pin or MITM for a RFCOMM or L2CAP connection.

This is needed for the SIM access profile.

Change-Id: I6bb2b0dff1ebf4b4f1d8faad97aa7c480000d3ea
Signed-off-by: Casper Bonde <c.bonde@samsung.com>
---
 res/values/strings.xml                             |  3 +++
 .../settings/bluetooth/BluetoothPairingDialog.java | 14 +++++++++++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/res/values/strings.xml b/res/values/strings.xml
index e6e73806a4c..31311ee14f9 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -1170,6 +1170,9 @@
     <!-- Bluetooth PIN hint text (below the text entry box). [CHAR LIMIT=30] -->
     <string name="bluetooth_pin_values_hint">Usually 0000 or 1234</string>
 
+    <!-- Bluetooth PIN hint text (below the text entry box). [CHAR LIMIT=30] -->
+    <string name="bluetooth_pin_values_hint_16_digits">Must be 16 digits</string>
+
     <!-- Pairing dialog text to remind user to enter the PIN on the other device. [CHAR LIMIT=NONE] -->
     <string name="bluetooth_enter_pin_other_device">You may also need to type this PIN on the other device.</string>
     <!-- Pairing dialog text to remind user to enter the passkey on the other device. [CHAR LIMIT=NONE] -->
diff --git a/src/com/android/settings/bluetooth/BluetoothPairingDialog.java b/src/com/android/settings/bluetooth/BluetoothPairingDialog.java
index 578528530cb..ffe49450f52 100755
--- a/src/com/android/settings/bluetooth/BluetoothPairingDialog.java
+++ b/src/com/android/settings/bluetooth/BluetoothPairingDialog.java
@@ -116,6 +116,7 @@ public final class BluetoothPairingDialog extends AlertActivity implements
 
         switch (mType) {
             case BluetoothDevice.PAIRING_VARIANT_PIN:
+            case BluetoothDevice.PAIRING_VARIANT_PIN_16_DIGITS:
             case BluetoothDevice.PAIRING_VARIANT_PASSKEY:
                 createUserEntryDialog();
                 break;
@@ -181,6 +182,7 @@ public final class BluetoothPairingDialog extends AlertActivity implements
     private View createPinEntryView() {
         View view = getLayoutInflater().inflate(R.layout.bluetooth_pin_entry, null);
         TextView messageViewCaption = (TextView) view.findViewById(R.id.message_caption);
+        TextView messageViewCaptionHint = (TextView) view.findViewById(R.id.pin_values_hint);
         TextView messageViewContent = (TextView) view.findViewById(R.id.message_subhead);
         TextView messageView2 = (TextView) view.findViewById(R.id.message_below_pin);
         CheckBox alphanumericPin = (CheckBox) view.findViewById(R.id.alphanumeric_pin);
@@ -190,8 +192,12 @@ public final class BluetoothPairingDialog extends AlertActivity implements
 
         int messageId1;
         int messageId2;
+        int messageIdHint = R.string.bluetooth_pin_values_hint;
         int maxLength;
         switch (mType) {
+            case BluetoothDevice.PAIRING_VARIANT_PIN_16_DIGITS:
+                messageIdHint = R.string.bluetooth_pin_values_hint_16_digits;
+                // FALLTHROUGH
             case BluetoothDevice.PAIRING_VARIANT_PIN:
                 messageId1 = R.string.bluetooth_enter_pin_msg;
                 messageId2 = R.string.bluetooth_enter_pin_other_device;
@@ -213,6 +219,7 @@ public final class BluetoothPairingDialog extends AlertActivity implements
         }
 
         messageViewCaption.setText(messageId1);
+        messageViewCaptionHint.setText(messageIdHint);
         messageViewContent.setText(mCachedDeviceManager.getName(mDevice));
         messageView2.setText(messageId2);
         mPairingView.setInputType(InputType.TYPE_CLASS_NUMBER);
@@ -316,13 +323,18 @@ public final class BluetoothPairingDialog extends AlertActivity implements
 
     public void afterTextChanged(Editable s) {
         if (mOkButton != null) {
-            mOkButton.setEnabled(s.length() > 0);
+            if (mType == BluetoothDevice.PAIRING_VARIANT_PIN_16_DIGITS) {
+                mOkButton.setEnabled(s.length() >= 16);
+            } else {
+                mOkButton.setEnabled(s.length() > 0);
+            }
         }
     }
 
     private void onPair(String value) {
         switch (mType) {
             case BluetoothDevice.PAIRING_VARIANT_PIN:
+            case BluetoothDevice.PAIRING_VARIANT_PIN_16_DIGITS:
                 byte[] pinBytes = BluetoothDevice.convertPinToBytes(value);
                 if (pinBytes == null) {
                     return;