From 70391992083300eae4b278b4895ce66cc23bd9e7 Mon Sep 17 00:00:00 2001
From: Bogdan <bogdan.ungureanu@safemobile.com>
Date: Mon, 21 Mar 2022 19:39:55 +0200
Subject: [PATCH] SD-188 - Create IPermissionService and its implementation

---
 .../safemobile/enums/AuthorizationCode.java   | 10 ++
 .../safemobile/enums/AuthorizationStatus.java |  7 ++
 .../interfaces/IPermissionModule.java         | 11 +++
 safeDispatch/src/main/AndroidManifest.xml     |  6 +-
 .../com/safemobile/lib/PermissionService.java | 97 +++++++++++++++++++
 5 files changed, 129 insertions(+), 2 deletions(-)
 create mode 100644 libSafeMobile/src/main/java/com/safemobile/enums/AuthorizationCode.java
 create mode 100644 libSafeMobile/src/main/java/com/safemobile/enums/AuthorizationStatus.java
 create mode 100644 libSafeMobile/src/main/java/com/safemobile/interfaces/IPermissionModule.java
 create mode 100644 safeDispatch/src/main/java/com/safemobile/lib/PermissionService.java

diff --git a/libSafeMobile/src/main/java/com/safemobile/enums/AuthorizationCode.java b/libSafeMobile/src/main/java/com/safemobile/enums/AuthorizationCode.java
new file mode 100644
index 0000000..a686a41
--- /dev/null
+++ b/libSafeMobile/src/main/java/com/safemobile/enums/AuthorizationCode.java
@@ -0,0 +1,10 @@
+package com.safemobile.enums;
+
+public enum AuthorizationCode {
+    UNKNOWN,
+    RECORD_AUDIO,
+    CAMERA,
+    GEOLOCATION,
+    READ_EXTERNAL_STORAGE,
+    WRITE_EXTERNAL_STORAGE
+}
diff --git a/libSafeMobile/src/main/java/com/safemobile/enums/AuthorizationStatus.java b/libSafeMobile/src/main/java/com/safemobile/enums/AuthorizationStatus.java
new file mode 100644
index 0000000..9c93872
--- /dev/null
+++ b/libSafeMobile/src/main/java/com/safemobile/enums/AuthorizationStatus.java
@@ -0,0 +1,7 @@
+package com.safemobile.enums;
+
+public enum AuthorizationStatus {
+    AUTHORIZE,
+    DENIED,
+    NOT_DETERMINED
+}
diff --git a/libSafeMobile/src/main/java/com/safemobile/interfaces/IPermissionModule.java b/libSafeMobile/src/main/java/com/safemobile/interfaces/IPermissionModule.java
new file mode 100644
index 0000000..9f480c7
--- /dev/null
+++ b/libSafeMobile/src/main/java/com/safemobile/interfaces/IPermissionModule.java
@@ -0,0 +1,11 @@
+package com.safemobile.interfaces;
+
+import android.app.Activity;
+
+import com.safemobile.enums.AuthorizationCode;
+import com.safemobile.enums.AuthorizationStatus;
+
+public interface IPermissionModule {
+  AuthorizationStatus getAuthorizationStatus(Activity activity, AuthorizationCode authorizationCode);
+  void requestAuthorization(Activity activity, AuthorizationCode authorizationCode);
+}
diff --git a/safeDispatch/src/main/AndroidManifest.xml b/safeDispatch/src/main/AndroidManifest.xml
index 6489df7..63d87af 100644
--- a/safeDispatch/src/main/AndroidManifest.xml
+++ b/safeDispatch/src/main/AndroidManifest.xml
@@ -10,13 +10,15 @@
         android:glEsVersion="0x00020000"
         android:required="true" />
 
-    <uses-permission android:name="android.permission.CAMERA" />
+    <uses-permission android:name="android.permission.CAMERA" android:required="false"/>
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
-    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.READ_GSERVICES" />
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
     <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
 
     <uses-feature android:name="android.hardware.camera" />
     <uses-feature
diff --git a/safeDispatch/src/main/java/com/safemobile/lib/PermissionService.java b/safeDispatch/src/main/java/com/safemobile/lib/PermissionService.java
new file mode 100644
index 0000000..b33a923
--- /dev/null
+++ b/safeDispatch/src/main/java/com/safemobile/lib/PermissionService.java
@@ -0,0 +1,97 @@
+package com.safemobile.lib;
+
+import android.Manifest;
+import android.app.Activity;
+import android.content.pm.PackageManager;
+
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
+
+import com.safemobile.enums.AuthorizationCode;
+import com.safemobile.enums.AuthorizationStatus;
+import com.safemobile.interfaces.IPermissionModule;
+
+import java.security.InvalidParameterException;
+
+public class PermissionService implements IPermissionModule {
+    private static final String[] AUDIO_PERMISSIONS = {Manifest.permission.RECORD_AUDIO};
+    private static final String[] LOCATION_PERMISSIONS = {
+            Manifest.permission.ACCESS_COARSE_LOCATION,
+            Manifest.permission.ACCESS_FINE_LOCATION
+    };
+    private static final String[] CAMERA_PERMISSIONS = {Manifest.permission.CAMERA};
+    private static final String[] READ_EXTERNAL_STORAGE_PERMISSIONS = {Manifest.permission.READ_EXTERNAL_STORAGE};
+    private static final String[] WRITE_EXTERNAL_STORAGE_PERMISSIONS = {Manifest.permission.WRITE_EXTERNAL_STORAGE};
+
+    public static final int RECORD_AUDIO_PERMISSION_REQUEST_CODE = 13042022;
+    public static final int LOCATION_PERMISSION_REQUEST_CODE = 12021990;
+    public static final int CAMERA_PERMISSION_REQUEST_CODE = 16031989;
+    public static final int READ_STORAGE_PERMISSION_REQUEST_CODE = 30062018;
+    public static final int WRITE_STORAGE_PERMISSION_REQUEST_CODE = 13122012;
+
+    private boolean permissionPrompShowed;
+
+
+    @Override
+    public AuthorizationStatus getAuthorizationStatus(Activity activity, AuthorizationCode authorizationCode) {
+        switch (authorizationCode) {
+            case RECORD_AUDIO:
+                return getPermissionAuthorizationStatus(activity, Manifest.permission.RECORD_AUDIO);
+            case CAMERA:
+                return getPermissionAuthorizationStatus(activity, Manifest.permission.CAMERA);
+            case GEOLOCATION:
+                return getPermissionAuthorizationStatus(activity, Manifest.permission.ACCESS_COARSE_LOCATION);
+            case READ_EXTERNAL_STORAGE:
+                return getPermissionAuthorizationStatus(activity, Manifest.permission.READ_EXTERNAL_STORAGE);
+            case WRITE_EXTERNAL_STORAGE:
+                return getPermissionAuthorizationStatus(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE);
+            case UNKNOWN:
+                throw new InvalidParameterException(authorizationCode.name());
+            default:
+                throw new IllegalArgumentException(authorizationCode.name());
+        }
+    }
+
+    @Override
+    public void requestAuthorization(Activity activity, AuthorizationCode authorizationCode) {
+        switch (authorizationCode) {
+            case RECORD_AUDIO:
+                ActivityCompat.requestPermissions(activity, AUDIO_PERMISSIONS, RECORD_AUDIO_PERMISSION_REQUEST_CODE);
+                break;
+            case CAMERA:
+                ActivityCompat.requestPermissions(activity, CAMERA_PERMISSIONS, CAMERA_PERMISSION_REQUEST_CODE);
+                break;
+            case GEOLOCATION:
+                ActivityCompat.requestPermissions(activity, LOCATION_PERMISSIONS, LOCATION_PERMISSION_REQUEST_CODE);
+                break;
+            case READ_EXTERNAL_STORAGE:
+                ActivityCompat.requestPermissions(activity, READ_EXTERNAL_STORAGE_PERMISSIONS, READ_STORAGE_PERMISSION_REQUEST_CODE);
+                break;
+            case WRITE_EXTERNAL_STORAGE:
+                ActivityCompat.requestPermissions(activity, WRITE_EXTERNAL_STORAGE_PERMISSIONS, WRITE_STORAGE_PERMISSION_REQUEST_CODE);
+                break;
+            case UNKNOWN:
+                throw new InvalidParameterException(authorizationCode.name());
+            default:
+                throw new IllegalArgumentException(authorizationCode.name());
+        }
+        permissionPrompShowed = true;
+    }
+
+    private AuthorizationStatus getPermissionAuthorizationStatus(Activity activity, String permission) {
+        int permissionState = ContextCompat.checkSelfPermission(activity.getApplicationContext(), permission);
+
+        return authorizationStatus(activity, permissionState);
+    }
+
+    private AuthorizationStatus authorizationStatus(Activity activity, int permissionState) {
+        if (permissionState == PackageManager.PERMISSION_GRANTED)
+            return AuthorizationStatus.AUTHORIZE;
+        if (!permissionPrompShowed)
+            return AuthorizationStatus.NOT_DETERMINED;
+
+        boolean shouldShowPermissionPrompt = ActivityCompat.shouldShowRequestPermissionRationale(activity, Manifest.permission.ACCESS_COARSE_LOCATION);
+
+        return shouldShowPermissionPrompt ? AuthorizationStatus.NOT_DETERMINED : AuthorizationStatus.DENIED;
+    }
+}