PS-813 Add memory storage to state service (#2892)

* Use abstract methods and generics in StorageService

* Prepend `Abstract` to abstract classes

* Create session browser storage service

* Use memory storage service for state memory

* Inject memory storage service

* Maintain filename extensions to help ide formatting

* Preserve state if it's still in memory

* Use jslib's memory storage service

* linter

* Create prototypes on stored objects

* standardize package scripts

* Add type safety to `withPrototype` decorators

* webpack notify manifest version

* Fix desktop

* linter

* Fix script

* Improve prototye application

* do not change prototype if it already matches desired
* fix error with object values prototype application

* Handle null state

* Apply prototypes to browser-specific state

* Add angular language server to recommended extensions

* Improve browser state service tests

* Start testing state Service

* Fix abstract returns

* Move test setup files to not be picked up by default glob matchers

* Add key generation service

* Add low-dependency encrypt service

* Back crypto service with encrypt service.

We'll want to work items that don't require state over to encrypt service

* Add new storage service and tests

* Properly init more stored values

* Fix reload issues when state service is recovering state from session storage

Co-authored-by: Thomas Avery <Thomas-Avery@users.noreply.github.com>
Co-authored-by: Justin Baur <admin@justinbaur.com>

* Simplify encrypt service

* Do not log mac failures for local-backed session storage

* `content` changed to `main` in #2245

* Fix CLI

* Remove loggin

* PR feedback

* Merge remote-tracking branch 'origin/master' into add-memory-storage-to-state-service

* Fix desktop

* Fix decrypt method signature

* Minify if not development

* Key is required

Co-authored-by: Thomas Avery <Thomas-Avery@users.noreply.github.com>
Co-authored-by: Justin Baur <admin@justinbaur.com>

libs/common/src/abstractions/abstractEncrypt.service.ts

@@ -0,0 +1,7 @@
+import { EncString } from "@bitwarden/common/models/domain/encString";
+import { SymmetricCryptoKey } from "@bitwarden/common/models/domain/symmetricCryptoKey";
+
+export abstract class AbstractEncryptService {
+  abstract encrypt(plainValue: string | ArrayBuffer, key: SymmetricCryptoKey): Promise<EncString>;
+  abstract decryptToUtf8(encString: EncString, key: SymmetricCryptoKey): Promise<string>;
+}

libs/common/src/abstractions/storage.service.ts

@@ -1,8 +1,8 @@
 import { StorageOptions } from "../models/domain/storageOptions";
 
-export abstract class StorageService {
-  get: <T>(key: string, options?: StorageOptions) => Promise<T>;
-  has: (key: string, options?: StorageOptions) => Promise<boolean>;
-  save: (key: string, obj: any, options?: StorageOptions) => Promise<any>;
-  remove: (key: string, options?: StorageOptions) => Promise<any>;
+export abstract class AbstractStorageService {
+  abstract get<T>(key: string, options?: StorageOptions): Promise<T>;
+  abstract has(key: string, options?: StorageOptions): Promise<boolean>;
+  abstract save<T>(key: string, obj: T, options?: StorageOptions): Promise<void>;
+  abstract remove(key: string, options?: StorageOptions): Promise<void>;
 }

libs/common/src/models/domain/account.ts

@@ -23,6 +23,7 @@ import { SymmetricCryptoKey } from "./symmetricCryptoKey";
 export class EncryptionPair<TEncrypted, TDecrypted> {
   encrypted?: TEncrypted;
   decrypted?: TDecrypted;
+  decryptedSerialized?: string;
 }
 
 export class DataEncryptionPair<TEncrypted, TDecrypted> {
@@ -76,6 +77,7 @@ export class AccountKeys {
   privateKey?: EncryptionPair<string, ArrayBuffer> = new EncryptionPair<string, ArrayBuffer>();
   legacyEtmKey?: SymmetricCryptoKey;
   publicKey?: ArrayBuffer;
+  publicKeySerialized?: string;
   apiKeyClientSecret?: string;
 }
 

libs/common/src/models/domain/symmetricCryptoKey.ts

@@ -54,4 +54,22 @@ export class SymmetricCryptoKey {
       this.macKeyB64 = Utils.fromBufferToB64(this.macKey);
     }
   }
+
+  static initFromJson(jsonResult: SymmetricCryptoKey): SymmetricCryptoKey {
+    if (jsonResult == null) {
+      return jsonResult;
+    }
+
+    if (jsonResult.keyB64 != null) {
+      jsonResult.key = Utils.fromB64ToArray(jsonResult.keyB64).buffer;
+    }
+    if (jsonResult.encKeyB64 != null) {
+      jsonResult.encKey = Utils.fromB64ToArray(jsonResult.encKeyB64).buffer;
+    }
+    if (jsonResult.macKeyB64 != null) {
+      jsonResult.macKey = Utils.fromB64ToArray(jsonResult.macKeyB64).buffer;
+    }
+
+    return jsonResult;
+  }
 }

libs/common/src/services/appId.service.ts

@@ -1,10 +1,10 @@
 import { AppIdService as AppIdServiceAbstraction } from "../abstractions/appId.service";
-import { StorageService } from "../abstractions/storage.service";
+import { AbstractStorageService } from "../abstractions/storage.service";
 import { HtmlStorageLocation } from "../enums/htmlStorageLocation";
 import { Utils } from "../misc/utils";
 
 export class AppIdService implements AppIdServiceAbstraction {
-  constructor(private storageService: StorageService) {}
+  constructor(private storageService: AbstractStorageService) {}
 
   getAppId(): Promise<string> {
     return this.makeAndGetAppId("appId");

libs/common/src/services/crypto.service.ts

@@ -1,5 +1,6 @@
 import * as bigInt from "big-integer";
 
+import { AbstractEncryptService } from "../abstractions/abstractEncrypt.service";
 import { CryptoService as CryptoServiceAbstraction } from "../abstractions/crypto.service";
 import { CryptoFunctionService } from "../abstractions/cryptoFunction.service";
 import { LogService } from "../abstractions/log.service";
@@ -23,6 +24,7 @@ import { ProfileProviderResponse } from "../models/response/profileProviderRespo
 export class CryptoService implements CryptoServiceAbstraction {
   constructor(
     private cryptoFunctionService: CryptoFunctionService,
+    private encryptService: AbstractEncryptService,
     protected platformUtilService: PlatformUtilsService,
     protected logService: LogService,
     protected stateService: StateService
@@ -503,23 +505,15 @@ export class CryptoService implements CryptoServiceAbstraction {
     return this.buildEncKey(key, encKey.key);
   }
 
+  /**
+   * @deprecated June 22 2022: This method has been moved to encryptService.
+   * All callers should use this service to grab the relevant key and use encryptService for encryption instead.
+   * This method will be removed once all existing code has been refactored to use encryptService.
+   */
   async encrypt(plainValue: string | ArrayBuffer, key?: SymmetricCryptoKey): Promise<EncString> {
-    if (plainValue == null) {
-      return Promise.resolve(null);
-    }
+    key = await this.getKeyForEncryption(key);
 
-    let plainBuf: ArrayBuffer;
-    if (typeof plainValue === "string") {
-      plainBuf = Utils.fromUtf8ToArray(plainValue).buffer;
-    } else {
-      plainBuf = plainValue;
-    }
-
-    const encObj = await this.aesEncrypt(plainBuf, key);
-    const iv = Utils.fromBufferToB64(encObj.iv);
-    const data = Utils.fromBufferToB64(encObj.data);
-    const mac = encObj.mac != null ? Utils.fromBufferToB64(encObj.mac) : null;
-    return new EncString(encObj.key.encType, data, iv, mac);
+    return await this.encryptService.encrypt(plainValue, key);
   }
 
   async encryptToBytes(plainValue: ArrayBuffer, key?: SymmetricCryptoKey): Promise<EncArrayBuffer> {
@@ -618,13 +612,9 @@ export class CryptoService implements CryptoServiceAbstraction {
   }
 
   async decryptToUtf8(encString: EncString, key?: SymmetricCryptoKey): Promise<string> {
-    return await this.aesDecryptToUtf8(
-      encString.encryptionType,
-      encString.data,
-      encString.iv,
-      encString.mac,
-      key
-    );
+    key = await this.getKeyForEncryption(key);
+    key = await this.resolveLegacyKey(encString.encryptionType, key);
+    return await this.encryptService.decryptToUtf8(encString, key);
   }
 
   async decryptFromBytes(encBuf: ArrayBuffer, key: SymmetricCryptoKey): Promise<ArrayBuffer> {
@@ -754,6 +744,10 @@ export class CryptoService implements CryptoServiceAbstraction {
       : await this.stateService.getCryptoMasterKeyBiometric({ userId: userId });
   }
 
+  /**
+   * @deprecated June 22 2022: This method has been moved to encryptService.
+   * All callers should use encryptService instead. This method will be removed once all existing code has been refactored to use encryptService.
+   */
   private async aesEncrypt(data: ArrayBuffer, key: SymmetricCryptoKey): Promise<EncryptedObject> {
     const obj = new EncryptedObject();
     obj.key = await this.getKeyForEncryption(key);
@@ -770,43 +764,6 @@ export class CryptoService implements CryptoServiceAbstraction {
     return obj;
   }
 
-  private async aesDecryptToUtf8(
-    encType: EncryptionType,
-    data: string,
-    iv: string,
-    mac: string,
-    key: SymmetricCryptoKey
-  ): Promise<string> {
-    const keyForEnc = await this.getKeyForEncryption(key);
-    const theKey = await this.resolveLegacyKey(encType, keyForEnc);
-
-    if (theKey.macKey != null && mac == null) {
-      this.logService.error("mac required.");
-      return null;
-    }
-
-    if (theKey.encType !== encType) {
-      this.logService.error("encType unavailable.");
-      return null;
-    }
-
-    const fastParams = this.cryptoFunctionService.aesDecryptFastParameters(data, iv, mac, theKey);
-    if (fastParams.macKey != null && fastParams.mac != null) {
-      const computedMac = await this.cryptoFunctionService.hmacFast(
-        fastParams.macData,
-        fastParams.macKey,
-        "sha256"
-      );
-      const macsEqual = await this.cryptoFunctionService.compareFast(fastParams.mac, computedMac);
-      if (!macsEqual) {
-        this.logService.error("mac failed.");
-        return null;
-      }
-    }
-
-    return this.cryptoFunctionService.aesDecryptFast(fastParams);
-  }
-
   private async aesDecryptToBytes(
     encType: EncryptionType,
     data: ArrayBuffer,

libs/common/src/services/encrypt.service.ts

@@ -0,0 +1,94 @@
+import { CryptoFunctionService } from "@bitwarden/common/abstractions/cryptoFunction.service";
+import { LogService } from "@bitwarden/common/abstractions/log.service";
+import { Utils } from "@bitwarden/common/misc/utils";
+import { EncString } from "@bitwarden/common/models/domain/encString";
+import { EncryptedObject } from "@bitwarden/common/models/domain/encryptedObject";
+import { SymmetricCryptoKey } from "@bitwarden/common/models/domain/symmetricCryptoKey";
+
+import { AbstractEncryptService } from "../abstractions/abstractEncrypt.service";
+
+export class EncryptService implements AbstractEncryptService {
+  constructor(
+    private cryptoFunctionService: CryptoFunctionService,
+    private logService: LogService,
+    private logMacFailures: boolean
+  ) {}
+
+  async encrypt(plainValue: string | ArrayBuffer, key: SymmetricCryptoKey): Promise<EncString> {
+    if (key == null) {
+      throw new Error("no encryption key provided.");
+    }
+
+    if (plainValue == null) {
+      return Promise.resolve(null);
+    }
+
+    let plainBuf: ArrayBuffer;
+    if (typeof plainValue === "string") {
+      plainBuf = Utils.fromUtf8ToArray(plainValue).buffer;
+    } else {
+      plainBuf = plainValue;
+    }
+
+    const encObj = await this.aesEncrypt(plainBuf, key);
+    const iv = Utils.fromBufferToB64(encObj.iv);
+    const data = Utils.fromBufferToB64(encObj.data);
+    const mac = encObj.mac != null ? Utils.fromBufferToB64(encObj.mac) : null;
+    return new EncString(encObj.key.encType, data, iv, mac);
+  }
+
+  async decryptToUtf8(encString: EncString, key: SymmetricCryptoKey): Promise<string> {
+    if (key?.macKey != null && encString?.mac == null) {
+      this.logService.error("mac required.");
+      return null;
+    }
+
+    if (key.encType !== encString.encryptionType) {
+      this.logService.error("encType unavailable.");
+      return null;
+    }
+
+    const fastParams = this.cryptoFunctionService.aesDecryptFastParameters(
+      encString.data,
+      encString.iv,
+      encString.mac,
+      key
+    );
+    if (fastParams.macKey != null && fastParams.mac != null) {
+      const computedMac = await this.cryptoFunctionService.hmacFast(
+        fastParams.macData,
+        fastParams.macKey,
+        "sha256"
+      );
+      const macsEqual = await this.cryptoFunctionService.compareFast(fastParams.mac, computedMac);
+      if (!macsEqual) {
+        this.logMacFailed("mac failed.");
+        return null;
+      }
+    }
+
+    return this.cryptoFunctionService.aesDecryptFast(fastParams);
+  }
+
+  private async aesEncrypt(data: ArrayBuffer, key: SymmetricCryptoKey): Promise<EncryptedObject> {
+    const obj = new EncryptedObject();
+    obj.key = key;
+    obj.iv = await this.cryptoFunctionService.randomBytes(16);
+    obj.data = await this.cryptoFunctionService.aesEncrypt(data, obj.iv, obj.key.encKey);
+
+    if (obj.key.macKey != null) {
+      const macData = new Uint8Array(obj.iv.byteLength + obj.data.byteLength);
+      macData.set(new Uint8Array(obj.iv), 0);
+      macData.set(new Uint8Array(obj.data), obj.iv.byteLength);
+      obj.mac = await this.cryptoFunctionService.hmac(macData.buffer, obj.key.macKey, "sha256");
+    }
+
+    return obj;
+  }
+
+  private logMacFailed(msg: string) {
+    if (this.logMacFailures) {
+      this.logService.error(msg);
+    }
+  }
+}

libs/common/src/services/memoryStorage.service.ts

@@ -0,0 +1,30 @@
+import { AbstractStorageService } from "@bitwarden/common/abstractions/storage.service";
+
+export class MemoryStorageService implements AbstractStorageService {
+  private store = new Map<string, any>();
+
+  get<T>(key: string): Promise<T> {
+    if (this.store.has(key)) {
+      const obj = this.store.get(key);
+      return Promise.resolve(obj as T);
+    }
+    return Promise.resolve(null);
+  }
+
+  async has(key: string): Promise<boolean> {
+    return this.get(key) != null;
+  }
+
+  save(key: string, obj: any): Promise<any> {
+    if (obj == null) {
+      return this.remove(key);
+    }
+    this.store.set(key, obj);
+    return Promise.resolve();
+  }
+
+  remove(key: string): Promise<any> {
+    this.store.delete(key);
+    return Promise.resolve();
+  }
+}

libs/common/src/services/stateMigration.service.ts

@@ -1,4 +1,4 @@
-import { StorageService } from "../abstractions/storage.service";
+import { AbstractStorageService } from "../abstractions/storage.service";
 import { HtmlStorageLocation } from "../enums/htmlStorageLocation";
 import { KdfType } from "../enums/kdfType";
 import { StateVersion } from "../enums/stateVersion";
@@ -132,8 +132,8 @@ export class StateMigrationService<
   TAccount extends Account = Account
 > {
   constructor(
-    protected storageService: StorageService,
-    protected secureStorageService: StorageService,
+    protected storageService: AbstractStorageService,
+    protected secureStorageService: AbstractStorageService,
     protected stateFactory: StateFactory<TGlobalState, TAccount>
   ) {}