ELEMENTS-1652: prevent replacing and removing an attachment under ret…

…ention

ui/actions/nuxeo-delete-blob-button.js

@@ -137,11 +137,46 @@ import '../nuxeo-button-styles.js';
         !this.isImmutable(doc) &&
         !this.hasType(doc, 'Root') &&
         !this.isTrashed(doc) &&
-        !(doc.isRecord && this.xpath !== 'file:content') &&
-        !(this.isUnderRetentionOrLegalHold(doc) && this.xpath === 'file:content')
+        !this._isPropUnderRetention(doc)
       );
     }
 
+    _isPropUnderRetention(doc) {
+      if (doc && doc.isUnderRetentionOrLegalHold && doc.retainedProperties && doc.retainedProperties.length > 0) {
+        const { retainedProperties } = doc;
+        /* if retained property is multivalued attachment, and all files are to be retained, denoted by '*',
+          then return true.
+          if retained property is multivalued attachment, but only a single file is to be retained,
+          then return true only for that file */
+        return retainedProperties.find(
+          (prop) =>
+            this._transformXpathRegex(prop, this.xpath) || // xpath = docname:files/*/file
+            prop.startsWith(this.xpath) || // xpath = docname:files/1/file
+            (prop.includes(this.xpath.split('/')[0]) && !prop.includes('/')), // xpath = docname:files
+        );
+      }
+      return false;
+    }
+
+    _transformXpathRegex(prop, xpath) {
+      const transformedArray = [];
+      const splitter = '/';
+      const star = '*';
+      if (prop.includes(star)) {
+        let xpathArray = xpath.split(splitter);
+
+        for (let i = 0; i < xpathArray.length; i++) {
+          if (!Number.isNaN(parseInt(xpathArray[i], 10))) {
+            xpathArray[i] = star;
+          }
+          transformedArray.push(xpathArray[i]);
+        }
+        xpathArray = transformedArray;
+        xpath = xpathArray.join(splitter);
+      }
+      return prop === xpath;
+    }
+
     _computeLabel() {
       return this.i18n('deleteBlobButton.tooltip');
     }

ui/test/nuxeo-delete-blob.test.js

@@ -0,0 +1,117 @@
+/**
+ @license
+ ©2023 Hyland Software, Inc. and its affiliates. All rights reserved. 
+All Hyland product names are registered or unregistered trademarks of Hyland Software, Inc. or its affiliates.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+import { fixture, flush, html, isElementVisible } from '@nuxeo/testing-helpers';
+import { dom } from '@polymer/polymer/lib/legacy/polymer.dom';
+import '../actions/nuxeo-delete-blob-button.js';
+
+const isActionDivVisible = (button) => isElementVisible(dom(button.root).querySelector('.action'));
+
+suite('nuxeo-delete-blob-button', () => {
+  let button;
+
+  setup(async () => {
+    button = await fixture(
+      html`
+        <nuxeo-delete-blob-button></nuxeo-delete-blob-button>
+      `,
+    );
+    sinon.stub(button, 'isImmutable').returns(false);
+    sinon.stub(button, 'hasType').returns(false);
+    sinon.stub(button, 'isTrashed').returns(false);
+  });
+
+  suite('Button Visibility', () => {
+    test('Should not be visible when no permission is granted', async () => {
+      button.document = {
+        contextParameters: {
+          permissions: [],
+        },
+      };
+      await flush();
+      expect(isActionDivVisible(button)).to.be.false;
+    });
+
+    test('Should not be visible when only the "Read" permission is granted', async () => {
+      button.document = {
+        contextParameters: {
+          permissions: ['Read'],
+        },
+      };
+      await flush();
+      expect(isActionDivVisible(button)).to.be.false;
+    });
+
+    test('Should be visible when the "WriteProperties" permission is granted', async () => {
+      button.document = {
+        contextParameters: {
+          permissions: ['WriteProperties'],
+        },
+      };
+      await flush();
+      expect(isActionDivVisible(button)).to.be.true;
+    });
+  });
+
+  suite('should return whether property is under retention', () => {
+    const document = {
+      isUnderRetentionOrLegalHold: true,
+      retainedProperties: [
+        'checkext:single',
+        'checkext:field1/2/item',
+        'files:files/*/file',
+        'checkext:multiple',
+        'file:content',
+      ],
+    };
+    test('when xpath =  checkext:single, for document blob', () => {
+      button.xpath = 'checkext:single';
+      sinon.stub(button, 'hasPermission').returns(true);
+      expect(button._isAvailable(document)).to.eql(false);
+    });
+    test('when xpath =  checkext:multiple/0, for document attachement', () => {
+      button.xpath = 'checkext:multiple/0';
+      sinon.stub(button, 'hasPermission').returns(true);
+      expect(button._isAvailable(document)).to.eql(false);
+    });
+    test('when xpath =  checkext:multiple/1, for document attachement', () => {
+      button.xpath = 'checkext:multiple/1';
+      sinon.stub(button, 'hasPermission').returns(true);
+      expect(button._isAvailable(document)).to.eql(false);
+    });
+    test('when xpath =  checkext:field1/0, for custom property - document attachment', () => {
+      button.xpath = 'checkext:field1/0';
+      sinon.stub(button, 'hasPermission').returns(true);
+      expect(button._isAvailable(document)).to.eql(true);
+    });
+    test('when xpath =  checkext:field1/2, for custom property - document attachment', () => {
+      button.xpath = 'checkext:field1/2';
+      sinon.stub(button, 'hasPermission').returns(true);
+      expect(button._isAvailable(document)).to.eql(false);
+    });
+    test('when xpath =  files:files/0/file, for document attachement', () => {
+      button.xpath = 'files:files/0/file';
+      sinon.stub(button, 'hasPermission').returns(true);
+      expect(button._isAvailable(document)).to.eql(false);
+    });
+    test('when xpath =  file:content, for document viewer', () => {
+      button.xpath = 'file:content';
+      sinon.stub(button, 'hasPermission').returns(true);
+      expect(button._isAvailable(document)).to.eql(false);
+    });
+  });
+});