Revert "Removed permission info"

This reverts commit f1b2945fdf.

app/src/main/java/eu/faircode/email/FragmentOptionsMisc.java

@@ -29,6 +29,7 @@ import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.UriPermission;
+import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PermissionGroupInfo;
 import android.content.pm.PermissionInfo;
@@ -246,6 +247,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
     private Button btnFiles;
     private Button btnUris;
     private Button btnAllPermissions;
+    private TextView tvPermissions;
 
     private Group grpUpdates;
     private Group grpBitbucket;
@@ -480,6 +482,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
         btnFiles = view.findViewById(R.id.btnFiles);
         btnUris = view.findViewById(R.id.btnUris);
         btnAllPermissions = view.findViewById(R.id.btnAllPermissions);
+        tvPermissions = view.findViewById(R.id.tvPermissions);
 
         grpUpdates = view.findViewById(R.id.grpUpdates);
         grpBitbucket = view.findViewById(R.id.grpBitbucket);
@@ -1941,6 +1944,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
         super.onViewCreated(view, savedInstanceState);
         setContactInfo();
         setSuffixes();
+        setPermissionInfo();
     }
 
     @Override
@@ -2436,6 +2440,98 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
         }.execute(this, new Bundle(), "suffixes");
     }
 
+    private void setPermissionInfo() {
+        new SimpleTask<Spanned>() {
+            @Override
+            protected void onPreExecute(Bundle args) {
+                tvPermissions.setText(null);
+            }
+
+            @Override
+            protected Spanned onExecute(Context context, Bundle args) throws Throwable {
+                int start = 0;
+                int dp24 = Helper.dp2pixels(getContext(), 24);
+                SpannableStringBuilder ssb = new SpannableStringBuilderEx();
+                PackageManager pm = getContext().getPackageManager();
+                PackageInfo pi = pm.getPackageInfo(BuildConfig.APPLICATION_ID, PackageManager.GET_PERMISSIONS);
+                for (int i = 0; i < pi.requestedPermissions.length; i++) {
+                    boolean granted = ((pi.requestedPermissionsFlags[i] & PackageInfo.REQUESTED_PERMISSION_GRANTED) != 0);
+
+                    PermissionInfo info;
+                    try {
+                        info = pm.getPermissionInfo(pi.requestedPermissions[i], PackageManager.GET_META_DATA);
+                    } catch (Throwable ex) {
+                        info = new PermissionInfo();
+                        info.name = pi.requestedPermissions[i];
+                        if (!(ex instanceof PackageManager.NameNotFoundException))
+                            info.group = ex.toString();
+                    }
+
+                    ssb.append(info.name).append('\n');
+                    if (granted)
+                        ssb.setSpan(new StyleSpan(Typeface.BOLD), start, ssb.length(), 0);
+                    start = ssb.length();
+
+                    if (info.group != null) {
+                        ssb.append(info.group).append('\n');
+                        ssb.setSpan(new IndentSpan(dp24), start, ssb.length(), 0);
+                        start = ssb.length();
+                    }
+
+                    CharSequence description = info.loadDescription(pm);
+                    if (description != null) {
+                        ssb.append(description).append('\n');
+                        ssb.setSpan(new IndentSpan(dp24), start, ssb.length(), 0);
+                        ssb.setSpan(new RelativeSizeSpan(HtmlHelper.FONT_SMALL), start, ssb.length(), 0);
+                        start = ssb.length();
+                    }
+
+                    if (info.protectionLevel != 0) {
+                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P)
+                            switch (info.getProtection()) {
+                                case PermissionInfo.PROTECTION_DANGEROUS:
+                                    ssb.append("dangerous ");
+                                    break;
+                                case PermissionInfo.PROTECTION_NORMAL:
+                                    ssb.append("normal ");
+                                    break;
+                                case PermissionInfo.PROTECTION_SIGNATURE:
+                                    ssb.append("signature ");
+                                    break;
+                                case PermissionInfo.PROTECTION_SIGNATURE_OR_SYSTEM:
+                                    ssb.append("signatureOrSystem ");
+                                    break;
+                            }
+
+                        ssb.append(Integer.toHexString(info.protectionLevel));
+
+                        if (info.flags != 0)
+                            ssb.append(' ').append(Integer.toHexString(info.flags));
+
+                        ssb.append('\n');
+                        ssb.setSpan(new IndentSpan(dp24), start, ssb.length(), 0);
+                        start = ssb.length();
+                    }
+
+                    ssb.append('\n');
+                }
+
+                return ssb;
+            }
+
+            @Override
+            protected void onExecuted(Bundle args, Spanned permissions) {
+                tvPermissions.setText(permissions);
+            }
+
+            @Override
+            protected void onException(Bundle args, Throwable ex) {
+                Log.w(ex);
+                tvPermissions.setText(ex.toString());
+            }
+        }.execute(this, new Bundle(), "permissions");
+    }
+
     private void onExportClassifier(Context context) {
         Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
         intent.addCategory(Intent.CATEGORY_OPENABLE);

app/src/main/res/layout/fragment_options_misc.xml

@@ -2200,6 +2200,18 @@
                     android:text="@string/title_advanced_all_permissions"
                     app:layout_constraintStart_toStartOf="parent"
                     app:layout_constraintTop_toBottomOf="@id/btnUris" />
+
+                <TextView
+                    android:id="@+id/tvPermissions"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="12dp"
+                    android:text="Permissions"
+                    android:textAppearance="@style/TextAppearance.AppCompat.Small"
+                    android:textIsSelectable="true"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toBottomOf="@id/btnAllPermissions" />
             </androidx.constraintlayout.widget.ConstraintLayout>
         </androidx.cardview.widget.CardView>
     </androidx.constraintlayout.widget.ConstraintLayout>