[PM-686] [CLI] Add proxy support for file downloads (#7345)

* Add proxy support for file downloads

Instead of using node's native fetch we extend ApiService with NodeApiService to add support for proxies using `node-fetch`

* Add comments to the DownloadCommand

---------

Co-authored-by: Daniel James Smith <djsmith85@users.noreply.github.com>

apps/cli/src/commands/download.command.ts

@@ -1,7 +1,6 @@
 // FIXME: Update this file to be type safe and remove this and next line
 // @ts-strict-ignore
-import * as fet from "node-fetch";
-
+import { ApiService } from "@bitwarden/common/abstractions/api.service";
 import { EncryptService } from "@bitwarden/common/platform/abstractions/encrypt.service";
 import { EncArrayBuffer } from "@bitwarden/common/platform/models/domain/enc-array-buffer";
 import { SymmetricCryptoKey } from "@bitwarden/common/platform/models/domain/symmetric-crypto-key";
@@ -10,16 +9,36 @@ import { Response } from "../models/response";
 import { FileResponse } from "../models/response/file.response";
 import { CliUtils } from "../utils";
 
+/**
+ * Used to download and save attachments
+ */
 export abstract class DownloadCommand {
-  constructor(protected encryptService: EncryptService) {}
+  /**
+   * @param encryptService - Needed for decryption of the retrieved attachment
+   * @param apiService - Needed to override the existing nativeFetch which is available as of Node 18, to support proxies
+   */
+  constructor(
+    protected encryptService: EncryptService,
+    protected apiService: ApiService,
+  ) {}
 
+  /**
+   * Fetches an attachment via the url, decrypts it's content and saves it to a file
+   * @param url - url used to retrieve the attachment
+   * @param key - SymmetricCryptoKey to decrypt the file contents
+   * @param fileName - filename used when written to disk
+   * @param output - If output is empty or `--raw` was passed to the initial command the content is output onto stdout
+   * @returns Promise<FileResponse>
+   */
   protected async saveAttachmentToFile(
     url: string,
     key: SymmetricCryptoKey,
     fileName: string,
     output?: string,
   ) {
-    const response = await fet.default(new fet.Request(url, { headers: { cache: "no-cache" } }));
+    const response = await this.apiService.nativeFetch(
+      new Request(url, { headers: { cache: "no-cache" } }),
+    );
     if (response.status !== 200) {
       return Response.error(
         "A " + response.status + " error occurred while downloading the attachment.",

apps/cli/src/commands/get.command.ts

@@ -60,13 +60,13 @@ export class GetCommand extends DownloadCommand {
     private keyService: KeyService,
     encryptService: EncryptService,
     private searchService: SearchService,
-    private apiService: ApiService,
+    protected apiService: ApiService,
     private organizationService: OrganizationService,
     private eventCollectionService: EventCollectionService,
     private accountProfileService: BillingAccountProfileStateService,
     private accountService: AccountService,
   ) {
-    super(encryptService);
+    super(encryptService, apiService);
   }
 
   async run(object: string, id: string, cmdOptions: Record<string, any>): Promise<Response> {

apps/cli/src/oss-serve-configurator.ts

@@ -157,6 +157,7 @@ export class OssServeConfigurator {
       this.serviceContainer.environmentService,
       this.serviceContainer.searchService,
       this.serviceContainer.encryptService,
+      this.serviceContainer.apiService,
     );
     this.sendEditCommand = new SendEditCommand(
       this.serviceContainer.sendService,

apps/cli/src/tools/send/commands/get.command.ts

@@ -3,6 +3,7 @@
 import { OptionValues } from "commander";
 import { firstValueFrom } from "rxjs";
 
+import { ApiService } from "@bitwarden/common/abstractions/api.service";
 import { SearchService } from "@bitwarden/common/abstractions/search.service";
 import { EncryptService } from "@bitwarden/common/platform/abstractions/encrypt.service";
 import { EnvironmentService } from "@bitwarden/common/platform/abstractions/environment.service";
@@ -20,8 +21,9 @@ export class SendGetCommand extends DownloadCommand {
     private environmentService: EnvironmentService,
     private searchService: SearchService,
     encryptService: EncryptService,
+    apiService: ApiService,
   ) {
-    super(encryptService);
+    super(encryptService, apiService);
   }
 
   async run(id: string, options: OptionValues) {

apps/cli/src/tools/send/commands/receive.command.ts

@@ -4,6 +4,7 @@ import { OptionValues } from "commander";
 import * as inquirer from "inquirer";
 import { firstValueFrom } from "rxjs";
 
+import { ApiService } from "@bitwarden/common/abstractions/api.service";
 import { ErrorResponse } from "@bitwarden/common/models/response/error.response";
 import { CryptoFunctionService } from "@bitwarden/common/platform/abstractions/crypto-function.service";
 import { EncryptService } from "@bitwarden/common/platform/abstractions/encrypt.service";
@@ -35,8 +36,9 @@ export class SendReceiveCommand extends DownloadCommand {
     private platformUtilsService: PlatformUtilsService,
     private environmentService: EnvironmentService,
     private sendApiService: SendApiService,
+    apiService: ApiService,
   ) {
-    super(encryptService);
+    super(encryptService, apiService);
   }
 
   async run(url: string, options: OptionValues): Promise<Response> {

apps/cli/src/tools/send/send.program.ts

@@ -108,6 +108,7 @@ export class SendProgram extends BaseProgram {
           this.serviceContainer.platformUtilsService,
           this.serviceContainer.environmentService,
           this.serviceContainer.sendApiService,
+          this.serviceContainer.apiService,
         );
         const response = await cmd.run(url, options);
         this.processResponse(response);
@@ -190,6 +191,7 @@ export class SendProgram extends BaseProgram {
           this.serviceContainer.environmentService,
           this.serviceContainer.searchService,
           this.serviceContainer.encryptService,
+          this.serviceContainer.apiService,
         );
         const response = await cmd.run(id, options);
         this.processResponse(response);
@@ -249,6 +251,7 @@ export class SendProgram extends BaseProgram {
           this.serviceContainer.environmentService,
           this.serviceContainer.searchService,
           this.serviceContainer.encryptService,
+          this.serviceContainer.apiService,
         );
         const cmd = new SendEditCommand(
           this.serviceContainer.sendService,