keepass2 xml importer

src/importers/keepass2XmlImporter.ts

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+import { BaseImporter } from './baseImporter';
+import { Importer } from './importer';
+
+import { ImportResult } from '../models/domain/importResult';
+
+import { FolderView } from '../models/view/folderView';
+
+export class KeePass2XmlImporter extends BaseImporter implements Importer {
+    result = new ImportResult();
+
+    parse(data: string): ImportResult {
+        const doc = this.parseXml(data);
+        if (doc == null) {
+            this.result.success = false;
+            return this.result;
+        }
+
+        const rootGroup = doc.querySelector('KeePassFile > Root > Group');
+        if (rootGroup == null) {
+            this.result.errorMessage = 'Missing `KeePassFile > Root > Group` node.';
+            this.result.success = false;
+            return this.result;
+        }
+
+        this.traverse(rootGroup, true, '');
+
+        this.result.success = true;
+        return this.result;
+    }
+
+    traverse(node: Element, isRootNode: boolean, groupPrefixName: string) {
+        const folderIndex = this.result.folders.length;
+        let groupName = groupPrefixName;
+
+        if (!isRootNode) {
+            if (groupName !== '') {
+                groupName += ' > ';
+            }
+            const nameEl = this.querySelectorDirectChild(node, 'Name');
+            groupName += nameEl == null ? '-' : nameEl.textContent;
+            const folder = new FolderView();
+            folder.name = groupName;
+            this.result.folders.push(folder);
+        }
+
+        Array.from(this.querySelectorAllDirectChild(node, 'Entry')).forEach((entry) => {
+            const cipherIndex = this.result.ciphers.length;
+
+            const cipher = this.initLoginCipher();
+            Array.from(this.querySelectorAllDirectChild(entry, 'String')).forEach((entryString) => {
+                const valueEl = this.querySelectorDirectChild(entryString, 'Value');
+                const value = valueEl != null ? valueEl.textContent : null;
+                if (this.isNullOrWhitespace(value)) {
+                    return;
+                }
+                const keyEl = this.querySelectorDirectChild(entryString, 'Key');
+                const key = keyEl != null ? keyEl.textContent : null;
+
+                if (key === 'URL') {
+                    cipher.login.uris = this.makeUriArray(value);
+                } else if (key === 'UserName') {
+                    cipher.login.username = value;
+                } else if (key === 'Password') {
+                    cipher.login.password = value;
+                } else if (key === 'Title') {
+                    cipher.name = value;
+                } else if (key === 'Notes') {
+                    cipher.notes += (value + '\n');
+                } else {
+                    this.processKvp(cipher, key, value);
+                }
+            });
+
+            this.cleanupCipher(cipher);
+            this.result.ciphers.push(cipher);
+
+            if (!isRootNode) {
+                this.result.folderRelationships.push([cipherIndex, folderIndex]);
+            }
+        });
+
+        Array.from(this.querySelectorAllDirectChild(node, 'Group')).forEach((group) => {
+            this.traverse(group, false, groupName);
+        });
+    }
+}