do not allow selecting files in files browser that are not allowed to be reshared

Signed-off-by: Marcel Hibbe <dev@mhibbe.de>

CHANGELOG.md

@@ -18,6 +18,7 @@ Types of changes can be: Added/Changed/Deprecated/Removed/Fixed/Security
 - delete "chat via"-link from phonebook if phone number was deleted on server
 - remove all "chat via"-links from phonebook when sync is disabled
 - fix to show avatars for incoming pictures in group chats (@starypatyk)
+- do not allow selecting files in files browser that are not allowed to be reshared
 
 ## [11.1.0] - 2021-03-12
 ### Added

app/src/main/java/com/nextcloud/talk/components/filebrowser/adapters/items/BrowserFileItem.java

@@ -26,6 +26,8 @@ import android.view.View;
 import android.widget.CheckBox;
 import android.widget.ImageView;
 import android.widget.TextView;
+import android.widget.Toast;
+
 import autodagger.AutoInjector;
 import butterknife.BindView;
 import butterknife.ButterKnife;
@@ -102,17 +104,21 @@ public class BrowserFileItem extends AbstractFlexibleItem<BrowserFileItem.ViewHo
     @Override
     public void bindViewHolder(FlexibleAdapter<IFlexible> adapter, ViewHolder holder, int position, List<Object> payloads) {
         holder.fileIconImageView.setController(null);
-
-        if (browserFile.isEncrypted()) {
-            holder.fileEncryptedImageView.setVisibility(View.VISIBLE);
+        if (!browserFile.isAllowedToReShare() || browserFile.isEncrypted()) {
             holder.itemView.setEnabled(false);
             holder.itemView.setAlpha(0.38f);
         } else {
-            holder.fileEncryptedImageView.setVisibility(View.GONE);
             holder.itemView.setEnabled(true);
             holder.itemView.setAlpha(1.0f);
         }
 
+        if (browserFile.isEncrypted()) {
+            holder.fileEncryptedImageView.setVisibility(View.VISIBLE);
+
+        } else {
+            holder.fileEncryptedImageView.setVisibility(View.GONE);
+        }
+
         if (browserFile.isFavorite()) {
             holder.fileFavoriteImageView.setVisibility(View.VISIBLE);
         } else {
@@ -146,7 +152,11 @@ public class BrowserFileItem extends AbstractFlexibleItem<BrowserFileItem.ViewHo
             holder.selectFileCheckbox.setOnClickListener(new View.OnClickListener() {
                 @Override
                 public void onClick(View v) {
-                    if (((CheckBox) v).isChecked() != isSelected()) {
+                    if (!browserFile.isAllowedToReShare()) {
+                        ((CheckBox) v).setChecked(false);
+                        Toast.makeText(context, context.getResources().getString(R.string.nc_file_browser_reshare_forbidden),
+                                Toast.LENGTH_LONG).show();
+                    } else if (((CheckBox) v).isChecked() != isSelected()) {
                         setSelected(((CheckBox) v).isChecked());
                         selectionInterface.toggleBrowserItemSelection(browserFile.getPath());
                     }

app/src/main/java/com/nextcloud/talk/components/filebrowser/models/BrowserFile.java

@@ -51,6 +51,8 @@ public class BrowserFile {
     public boolean hasPreview;
     public boolean favorite;
     public boolean encrypted;
+    public String permissions;
+    private boolean isAllowedToReShare = false;
 
     public static BrowserFile getModelFromResponse(Response response, String remotePath) {
         BrowserFile browserFile = new BrowserFile();
@@ -95,6 +97,14 @@ public class BrowserFile {
             if (property instanceof NCEncrypted) {
                 browserFile.setEncrypted(((NCEncrypted) property).isNcEncrypted());
             }
+
+            if (property instanceof NCPermission) {
+                browserFile.setPermissions(((NCPermission) property).getNcPermission());
+            }
+        }
+
+        if(browserFile.getPermissions().contains("R")){
+            browserFile.isAllowedToReShare = true;
         }
 
         if (TextUtils.isEmpty(browserFile.getMimeType()) && !browserFile.isFile()) {

app/src/main/java/com/nextcloud/talk/components/filebrowser/models/properties/NCPermission.java

@@ -0,0 +1,76 @@
+/*
+ * Nextcloud Talk application
+ *
+ * @author Mario Danic
+ * Copyright (C) 2017-2019 Mario Danic <mario@lovelyhq.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.nextcloud.talk.components.filebrowser.models.properties;
+
+import android.text.TextUtils;
+
+import com.nextcloud.talk.components.filebrowser.webdav.DavUtils;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+import java.io.IOException;
+
+import at.bitfire.dav4android.Property;
+import at.bitfire.dav4android.PropertyFactory;
+import at.bitfire.dav4android.XmlUtils;
+import lombok.Getter;
+import lombok.Setter;
+
+public class NCPermission implements Property {
+    public static final Name NAME = new Name(DavUtils.OC_NAMESPACE, DavUtils.EXTENDED_PROPERTY_NAME_PERMISSIONS);
+
+    @Getter
+    @Setter
+    private String ncPermission;
+
+    private NCPermission(String p) {
+        ncPermission = p;
+    }
+
+    public static class Factory implements PropertyFactory {
+
+        @Nullable
+        @Override
+        public Property create(@NotNull XmlPullParser xmlPullParser) {
+            try {
+                String text = XmlUtils.INSTANCE.readText(xmlPullParser);
+                if (!TextUtils.isEmpty(text)) {
+                    return new NCPermission(text);
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            } catch (XmlPullParserException e) {
+                e.printStackTrace();
+            }
+
+            return new NCPermission("");
+        }
+
+        @NotNull
+        @Override
+        public Name getName() {
+            return NAME;
+        }
+    }
+}

app/src/main/java/com/nextcloud/talk/components/filebrowser/webdav/DavUtils.java

@@ -68,7 +68,7 @@ public class DavUtils {
         propSet.add(GetETag.NAME);
         propSet.add(ResourceType.NAME);
 
-        propSet.add(new Property.Name(OC_NAMESPACE, EXTENDED_PROPERTY_NAME_PERMISSIONS));
+        propSet.add(NCPermission.NAME);
         propSet.add(OCId.NAME);
         propSet.add(OCSize.NAME);
         propSet.add(OCFavorite.NAME);
@@ -97,6 +97,7 @@ public class DavUtils {
             reflectionMap.put(NCEncrypted.NAME, new NCEncrypted.Factory());
             reflectionMap.put(OCFavorite.NAME, new OCFavorite.Factory());
             reflectionMap.put(OCSize.NAME, new OCSize.Factory());
+            reflectionMap.put(NCPermission.NAME, new NCPermission.Factory());
 
             factories.set(propertyRegistry, reflectionMap);
         } catch (NoSuchFieldException e) {

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

@@ -304,6 +304,7 @@
     <string name="nc_file_browser_back">Back</string>
     <string name="nc_file_browser_refresh">Refresh</string>
     <string name="nc_last_modified">%1$s | Last modified: %2$s</string>
+    <string name="nc_file_browser_reshare_forbidden">You are not allowed to re-share this file</string>
 
     <!-- Lobby -->