private: adds tokens controller

adds private api
adds AuthTokenDto and AuthTokenWithSecretDto
adds necessary methods in the users service
adds RandomnessError

Signed-off-by: Philip Molares <philip.molares@udo.edu>

src/api/private/tokens/tokens.controller.ts

@@ -0,0 +1,54 @@
+/*
+ * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import {
+  Body,
+  Controller,
+  Delete,
+  Get,
+  HttpCode,
+  Param,
+  Post,
+} from '@nestjs/common';
+import { ConsoleLoggerService } from '../../../logger/console-logger.service';
+import { UsersService } from '../../../users/users.service';
+import { AuthTokenDto } from '../../../users/auth-token.dto';
+import { AuthTokenWithSecretDto } from '../../../users/auth-token-with-secret.dto';
+
+@Controller('tokens')
+export class TokensController {
+  constructor(
+    private readonly logger: ConsoleLoggerService,
+    private usersService: UsersService,
+  ) {
+    this.logger.setContext(TokensController.name);
+  }
+
+  @Get()
+  async getUserTokens(): Promise<AuthTokenDto[]> {
+    // ToDo: Get real userName
+    return (await this.usersService.getTokensByUsername('molly')).map((token) =>
+      this.usersService.toAuthTokenDto(token),
+    );
+  }
+
+  @Post()
+  async postToken(@Body() label: string): Promise<AuthTokenWithSecretDto> {
+    // ToDo: Get real userName
+    const authToken = await this.usersService.createTokenForUser(
+      'hardcoded',
+      label,
+    );
+    return this.usersService.toAuthTokenWithSecretDto(authToken);
+  }
+
+  @Delete('/:timestamp')
+  @HttpCode(204)
+  async deleteToken(@Param('timestamp') timestamp: number) {
+    // ToDo: Get real userName
+    return this.usersService.removeToken('hardcoded', timestamp);
+  }
+}