chore: add new featurew

src/modules/mail-server/services/wildduck-messages.service.ts

@@ -1,7 +1,9 @@
 import { Injectable } from "@nestjs/common";
 import { Observable } from "rxjs";
+import { catchError, map, throwError } from "rxjs";
 
 import { WildDuckBaseService } from "./wildduck-base.service";
+import { MailServerException } from "../../../core/exceptions/mail-server.exceptions";
 import { ListMessagesQueryDto, SearchMessagesQueryDto, UpdateMessageDto, UploadMessageDto } from "../DTO/message.dto";
 import { AttachmentResponse } from "../interfaces/attachment.interface";
 import {
@@ -75,7 +77,37 @@ export class WildDuckMessagesService extends WildDuckBaseService {
    */
   getMessageAttachment(userId: string, mailboxId: string, messageId: number, attachmentId: string): Observable<AttachmentResponse> {
     // This returns binary content
-    return this.get<AttachmentResponse>(`/users/${userId}/mailboxes/${mailboxId}/messages/${messageId}/attachments/${attachmentId}`);
+    const url = this.buildUrl(`/users/${userId}/mailboxes/${mailboxId}/messages/${messageId}/attachments/${attachmentId}`);
+    this.logger.debug(`WildDuck GET: ${url}`);
+
+    return this.httpService
+      .get(url, {
+        responseType: "stream",
+        headers: {
+          Accept: "*/*",
+        },
+      })
+      .pipe(
+        map((response) => {
+          this.logger.debug(`HTTP ${response.status}: ${response.config?.url}`);
+          return {
+            success: response.data,
+            headers: response.headers,
+            contentType: response.headers["content-type"],
+            contentDisposition: response.headers["content-disposition"],
+            contentLength: response.headers["content-length"],
+          } as AttachmentResponse;
+        }),
+        catchError((error) => {
+          this.logger.error(`WildDuck API error: ${error.message}`, error.stack);
+
+          if (error.response?.data?.error) {
+            return throwError(() => new MailServerException(error.response.data.error));
+          }
+
+          return throwError(() => error);
+        }),
+      );
   }
 
   /**