Forwarded email alias generation (#772)

* generate forwarded alias with SL and AD

* added forwarded email to type list

* add ApiService dep

* ApiServiceAbstraction

* use proper status codes

* only generate on button press

* reset username to `-`

* reset username when forwarded

* Authorization header for anonaddy

* use proper anonaddy json path

* firefox relay support

* update description for firefox

* log username generation errors

angular/src/components/generator.component.ts

@@ -3,6 +3,7 @@ import { ActivatedRoute } from "@angular/router";
 import { first } from "rxjs/operators";
 
 import { I18nService } from "jslib-common/abstractions/i18n.service";
+import { LogService } from "jslib-common/abstractions/log.service";
 import { PasswordGenerationService } from "jslib-common/abstractions/passwordGeneration.service";
 import { PlatformUtilsService } from "jslib-common/abstractions/platformUtils.service";
 import { StateService } from "jslib-common/abstractions/state.service";
@@ -15,6 +16,7 @@ export class GeneratorComponent implements OnInit {
   @Input() type: string;
   @Output() onSelected = new EventEmitter<string>();
 
+  usernameGeneratingPromise: Promise<string>;
   typeOptions: any[];
   passTypeOptions: any[];
   usernameTypeOptions: any[];
@@ -36,6 +38,7 @@ export class GeneratorComponent implements OnInit {
     protected platformUtilsService: PlatformUtilsService,
     protected stateService: StateService,
     protected i18nService: I18nService,
+    protected logService: LogService,
     protected route: ActivatedRoute,
     private win: Window
   ) {
@@ -58,13 +61,20 @@ export class GeneratorComponent implements OnInit {
         value: "catchall",
         desc: i18nService.t("catchallEmailDesc"),
       },
+      {
+        name: i18nService.t("forwardedEmail"),
+        value: "forwarded",
+        desc: i18nService.t("forwardedEmailDesc"),
+      },
       { name: i18nService.t("randomWord"), value: "word" },
     ];
     this.subaddressOptions = [{ name: i18nService.t("random"), value: "random" }];
     this.catchallOptions = [{ name: i18nService.t("random"), value: "random" }];
     this.forwardOptions = [
       { name: "SimpleLogin", value: "simplelogin" },
-      { name: "FastMail", value: "fastmail" },
+      { name: "AnonAddy", value: "anonaddy" },
+      { name: "Firefox Relay", value: "firefoxrelay" },
+      // { name: "FastMail", value: "fastmail" },
     ];
   }
 
@@ -104,13 +114,17 @@ export class GeneratorComponent implements OnInit {
           this.type = generatorOptions?.type ?? "password";
         }
       }
-      await this.regenerate();
+      if (this.regenerateWithoutButtonPress()) {
+        await this.regenerate();
+      }
     });
   }
 
   async typeChanged() {
     await this.stateService.setGeneratorOptions({ type: this.type });
-    await this.regenerate();
+    if (this.regenerateWithoutButtonPress()) {
+      await this.regenerate();
+    }
   }
 
   async regenerate() {
@@ -135,14 +149,17 @@ export class GeneratorComponent implements OnInit {
     this.normalizePasswordOptions();
     await this.passwordGenerationService.saveOptions(this.passwordOptions);
 
-    if (regenerate) {
+    if (regenerate && this.regenerateWithoutButtonPress()) {
       await this.regeneratePassword();
     }
   }
 
   async saveUsernameOptions(regenerate = true) {
     await this.usernameGenerationService.saveOptions(this.usernameOptions);
-    if (regenerate) {
+    if (this.usernameOptions.type === "forwarded") {
+      this.username = "-";
+    }
+    if (regenerate && this.regenerateWithoutButtonPress()) {
       await this.regenerateUsername();
     }
   }
@@ -157,9 +174,16 @@ export class GeneratorComponent implements OnInit {
   }
 
   async generateUsername() {
-    this.username = await this.usernameGenerationService.generateUsername(this.usernameOptions);
-    if (this.username === "" || this.username === null) {
-      this.username = "-";
+    try {
+      this.usernameGeneratingPromise = this.usernameGenerationService.generateUsername(
+        this.usernameOptions
+      );
+      this.username = await this.usernameGeneratingPromise;
+      if (this.username === "" || this.username === null) {
+        this.username = "-";
+      }
+    } catch (e) {
+      this.logService.error(e);
     }
   }
 
@@ -185,6 +209,10 @@ export class GeneratorComponent implements OnInit {
     this.showOptions = !this.showOptions;
   }
 
+  regenerateWithoutButtonPress() {
+    return this.type !== "username" || this.usernameOptions.type !== "forwarded";
+  }
+
   private normalizePasswordOptions() {
     // Application level normalize options depedent on class variables
     this.passwordOptions.ambiguous = !this.avoidAmbiguous;

angular/src/services/jslib-services.module.ts

@@ -232,7 +232,7 @@ export const CLIENT_TYPE = new InjectionToken<boolean>("CLIENT_TYPE");
     {
       provide: UsernameGenerationServiceAbstraction,
       useClass: UsernameGenerationService,
-      deps: [CryptoServiceAbstraction, StateServiceAbstraction],
+      deps: [CryptoServiceAbstraction, StateServiceAbstraction, ApiServiceAbstraction],
     },
     {
       provide: ApiServiceAbstraction,

common/src/abstractions/usernameGeneration.service.ts

@@ -3,6 +3,7 @@ export abstract class UsernameGenerationService {
   generateWord: (options: any) => Promise<string>;
   generateSubaddress: (options: any) => Promise<string>;
   generateCatchall: (options: any) => Promise<string>;
+  generateForwarded: (options: any) => Promise<string>;
   getOptions: () => Promise<any>;
   saveOptions: (options: any) => Promise<void>;
 }

common/src/services/usernameGeneration.service.ts

@@ -1,3 +1,4 @@
+import { ApiService } from "../abstractions/api.service";
 import { CryptoService } from "../abstractions/crypto.service";
 import { StateService } from "../abstractions/state.service";
 import { UsernameGenerationService as BaseUsernameGenerationService } from "../abstractions/usernameGeneration.service";
@@ -9,10 +10,16 @@ const DefaultOptions = {
   wordIncludeNumber: true,
   subaddressType: "random",
   catchallType: "random",
+  forwardedType: "simplelogin",
+  forwardedAnonAddyDomain: "anonaddy.me",
 };
 
 export class UsernameGenerationService implements BaseUsernameGenerationService {
-  constructor(private cryptoService: CryptoService, private stateService: StateService) {}
+  constructor(
+    private cryptoService: CryptoService,
+    private stateService: StateService,
+    private apiService: ApiService
+  ) {}
 
   generateUsername(options: any): Promise<string> {
     if (options.type === "catchall") {
@@ -20,7 +27,7 @@ export class UsernameGenerationService implements BaseUsernameGenerationService
     } else if (options.type === "subaddress") {
       return this.generateSubaddress(options);
     } else if (options.type === "forwarded") {
-      return this.generateSubaddress(options);
+      return this.generateForwarded(options);
     } else {
       return this.generateWord(options);
     }
@@ -94,6 +101,46 @@ export class UsernameGenerationService implements BaseUsernameGenerationService
     return startString + "@" + o.catchallDomain;
   }
 
+  async generateForwarded(options: any): Promise<string> {
+    const o = Object.assign({}, DefaultOptions, options);
+
+    if (o.forwardedService == null) {
+      return null;
+    }
+
+    if (o.forwardedService === "simplelogin") {
+      if (o.forwardedSimpleLoginApiKey == null || o.forwardedSimpleLoginApiKey === "") {
+        return null;
+      }
+      return this.generateSimpleLoginAlias(
+        o.forwardedSimpleLoginApiKey,
+        o.forwardedSimpleLoginHostname,
+        o.website
+      );
+    } else if (o.forwardedService === "anonaddy") {
+      if (
+        o.forwardedAnonAddyApiToken == null ||
+        o.forwardedAnonAddyApiToken === "" ||
+        o.forwardedAnonAddyDomain == null ||
+        o.forwardedAnonAddyDomain == ""
+      ) {
+        return null;
+      }
+      return this.generateAnonAddyAlias(
+        o.forwardedAnonAddyApiToken,
+        o.forwardedAnonAddyDomain,
+        o.website
+      );
+    } else if (o.forwardedService === "firefoxrelay") {
+      if (o.forwardedFirefoxApiToken == null || o.forwardedFirefoxApiToken === "") {
+        return null;
+      }
+      return this.generateFirefoxRelayAlias(o.forwardedFirefoxApiToken, o.website);
+    }
+
+    return null;
+  }
+
   async getOptions(): Promise<any> {
     let options = await this.stateService.getUsernameGenerationOptions();
     if (options == null) {
@@ -125,4 +172,112 @@ export class UsernameGenerationService implements BaseUsernameGenerationService
       ? number
       : new Array(width - number.length + 1).join("0") + number;
   }
+
+  private async generateSimpleLoginAlias(
+    apiKey: string,
+    hostname: string,
+    websiteNote: string
+  ): Promise<string> {
+    if (apiKey == null || apiKey === "") {
+      throw "Invalid SimpleLogin API key.";
+    }
+    const requestInit: RequestInit = {
+      cache: "no-store",
+      method: "POST",
+      headers: new Headers({
+        Authentication: apiKey,
+        "Content-Type": "application/json",
+      }),
+    };
+    let url = "https://app.simplelogin.io/api/alias/random/new";
+    if (hostname != null) {
+      url += "?hostname=" + hostname;
+    }
+    requestInit.body = JSON.stringify({
+      note:
+        (websiteNote != null ? "Website: " + websiteNote + ". " : "") + "Generated by Bitwarden.",
+    });
+    const request = new Request(url, requestInit);
+    const response = await this.apiService.nativeFetch(request);
+    if (response.status === 200 || response.status === 201) {
+      const json = await response.json();
+      return json.alias;
+    }
+    if (response.status === 401) {
+      throw "Invalid SimpleLogin API key.";
+    }
+    try {
+      const json = await response.json();
+      if (json?.error != null) {
+        throw "SimpleLogin error:" + json.error;
+      }
+    } catch {
+      // Do nothing...
+    }
+    throw "Unknown SimpleLogin error occurred.";
+  }
+
+  private async generateAnonAddyAlias(
+    apiToken: string,
+    domain: string,
+    websiteNote: string
+  ): Promise<string> {
+    if (apiToken == null || apiToken === "") {
+      throw "Invalid AnonAddy API token.";
+    }
+    const requestInit: RequestInit = {
+      cache: "no-store",
+      method: "POST",
+      headers: new Headers({
+        Authorization: "Bearer " + apiToken,
+        "Content-Type": "application/json",
+      }),
+    };
+    const url = "https://app.anonaddy.com/api/v1/aliases";
+    requestInit.body = JSON.stringify({
+      domain: domain,
+      description:
+        (websiteNote != null ? "Website: " + websiteNote + ". " : "") + "Generated by Bitwarden.",
+    });
+    const request = new Request(url, requestInit);
+    const response = await this.apiService.nativeFetch(request);
+    if (response.status === 200 || response.status === 201) {
+      const json = await response.json();
+      return json?.data?.email;
+    }
+    if (response.status === 401) {
+      throw "Invalid AnonAddy API token.";
+    }
+    throw "Unknown AnonAddy error occurred.";
+  }
+
+  private async generateFirefoxRelayAlias(apiToken: string, website: string): Promise<string> {
+    if (apiToken == null || apiToken === "") {
+      throw "Invalid Firefox Relay API token.";
+    }
+    const requestInit: RequestInit = {
+      cache: "no-store",
+      method: "POST",
+      headers: new Headers({
+        Authorization: "Token " + apiToken,
+        "Content-Type": "application/json",
+      }),
+    };
+    const url = "https://relay.firefox.com/api/v1/relayaddresses/";
+    requestInit.body = JSON.stringify({
+      enabled: true,
+      generated_for: website,
+      description: (website != null ? website + " - " : "") + "Generated by Bitwarden.",
+    });
+    const request = new Request(url, requestInit);
+    const response = await this.apiService.nativeFetch(request);
+    if (response.status === 200 || response.status === 201) {
+      const json = await response.json();
+      return json?.full_address;
+    }
+    if (response.status === 401) {
+      throw "Invalid Firefox Relay API token.";
+    }
+    throw "Unknown Firefox Relay error occurred.";
+  }
 }