search service with lunr implementation

package-lock.json

@@ -31,6 +31,11 @@
       "integrity": "sha512-BZknw3E/z3JmCLqQVANcR17okqVTPZdlxvcIz0fJiJVLUCbSH1hK3zs9r634PVSmrzAxN+n/fxlVRiYoArdOIQ==",
       "dev": true
     },
+    "@types/lunr": {
+      "version": "2.1.5",
+      "resolved": "https://registry.npmjs.org/@types/lunr/-/lunr-2.1.5.tgz",
+      "integrity": "sha512-esk3CG25hRtHsVHm+LOjiSFYdw8be3uIY653WUwR43Bro914HSimPgPpqgajkhTJ0awK3RQfaIxP7zvbtCpcyg=="
+    },
     "@types/marked": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/@types/marked/-/marked-0.3.0.tgz",
@@ -297,6 +302,11 @@
       "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
       "dev": true
     },
+    "lunr": {
+      "version": "2.1.6",
+      "resolved": "https://registry.npmjs.org/lunr/-/lunr-2.1.6.tgz",
+      "integrity": "sha512-ydJpB8CX8cZ/VE+KMaYaFcZ6+o2LruM6NG76VXdflYTgluvVemz1lW4anE+pyBbLvxJHZdvD1Jy/fOqdzAEJog=="
+    },
     "marked": {
       "version": "0.3.9",
       "resolved": "https://registry.npmjs.org/marked/-/marked-0.3.9.tgz",

package.json

@@ -33,7 +33,9 @@
     "typescript": "^2.7.1"
   },
   "dependencies": {
+    "lunr": "2.1.6",
     "node-forge": "0.7.1",
+    "@types/lunr": "2.1.5",
     "@types/node-forge": "0.7.1",
     "@types/webcrypto": "0.0.28"
   }

src/abstractions/search.service.ts

@@ -0,0 +1,6 @@
+import { CipherView } from '../models/view/cipherView';
+
+export abstract class SearchService {
+    indexCiphers: () => Promise<void>;
+    searchCiphers: (query: string) => Promise<CipherView[]>;
+}

src/models/view/cipherView.ts

@@ -65,4 +65,12 @@ export class CipherView implements View {
     get hasFields(): boolean {
         return this.fields && this.fields.length > 0;
     }
+
+    get login_username(): string {
+        return this.login != null ? this.login.username : null;
+    }
+
+    get login_uri(): string {
+        return this.login != null ? this.login.uri : null;
+    }
 }

src/services/audit.service.ts

@@ -1,8 +1,9 @@
+import { AuditService as AuditServiceAbstraction } from '../abstractions/audit.service';
 import { CryptoService } from '../abstractions/crypto.service';
 
 const PwnedPasswordsApi = 'https://api.pwnedpasswords.com/range/';
 
-export class AuditService {
+export class AuditService implements AuditServiceAbstraction {
     constructor(private cryptoService: CryptoService) {
     }
 

src/services/search.service.ts

@@ -0,0 +1,60 @@
+import * as lunr from 'lunr';
+
+import { CipherView } from '../models/view/cipherView';
+
+import { CipherService } from '../abstractions/cipher.service';
+import { SearchService as SearchServiceAbstraction } from '../abstractions/search.service';
+
+export class SearchService implements SearchServiceAbstraction {
+    private index: lunr.Index;
+
+    constructor(private cipherService: CipherService) {
+    }
+
+    async indexCiphers(): Promise<void> {
+        const builder = new lunr.Builder();
+        builder.ref('id');
+        builder.field('name');
+        builder.field('subTitle');
+        builder.field('notes');
+        builder.field('login_username');
+        builder.field('login_uri');
+
+        const ciphers = await this.cipherService.getAllDecrypted();
+        ciphers.forEach((c) => {
+            builder.add(c);
+        });
+
+        this.index = builder.build();
+    }
+
+    async searchCiphers(query: string): Promise<CipherView[]> {
+        const results: CipherView[] = [];
+        if (this.index == null) {
+            return results;
+        }
+
+        const ciphers = await this.cipherService.getAllDecrypted();
+        const ciphersMap = new Map<string, CipherView>();
+        ciphers.forEach((c) => {
+            ciphersMap.set(c.id, c);
+        });
+
+        query = this.transformQuery(query);
+        const searchResults = this.index.search(query);
+        searchResults.forEach((r) => {
+            if (ciphersMap.has(r.ref)) {
+                results.push(ciphersMap.get(r.ref));
+            }
+        });
+
+        return results;
+    }
+
+    private transformQuery(query: string) {
+        if (query.indexOf('>') === 0) {
+            return query.substr(1).trimLeft();
+        }
+        return '*' + query + '*';
+    }
+}