feat: add signature endpoints

src/controllers/02-user-controller.ts

@@ -37,6 +37,7 @@ import {
   getPresigned,
   listFile,
   setFile,
+  uploadFile,
 } from "../utils/minio";
 import { filterStatus } from "../services/prisma";
 import {
@@ -878,3 +879,42 @@ export class UserAttachmentController extends Controller {
     );
   }
 }
+
+@Route("api/v1/user/{userId}/signature")
+@Security("keycloak")
+export class UserSignatureController extends Controller {
+  #checkPermission(req: RequestWithUser, userId: string) {
+    if (req.user.sub !== userId) {
+      throw new HttpError(
+        HttpStatus.FORBIDDEN,
+        "You do not have permission to perform this action.",
+        "noPermission",
+      );
+    }
+  }
+
+  @Get()
+  async getSignature(@Request() req: RequestWithUser, @Path() userId: string) {
+    this.#checkPermission(req, userId);
+    return req.res?.redirect(await getFile(fileLocation.user.signature(userId)));
+  }
+
+  @Put()
+  async setSignature(
+    @Request() req: RequestWithUser,
+    @Path() userId: string,
+    @Body() signature?: { data: string },
+  ) {
+    this.#checkPermission(req, userId);
+
+    const base64 = signature?.data;
+
+    if (base64) {
+      const buffer = Buffer.from(base64.replace(/^data:image\/\w+;base64,/, ""), "base64");
+      const mime = "image/" + base64.split(";")[0].split("/")[1];
+      await uploadFile(fileLocation.user.signature(userId), buffer, mime);
+    } else {
+      return await setFile(fileLocation.user.signature(userId));
+    }
+  }
+}

src/utils/minio.ts

@@ -35,6 +35,12 @@ export async function setFile(path: string, exp = 6 * 60 * 60) {
   return await minio.presignedPutObject(MINIO_BUCKET, path, exp);
 }
 
+export async function uploadFile(path: string, buffer: Buffer, contentType?: string) {
+  await minio.putObject(MINIO_BUCKET, path, buffer, Buffer.byteLength(buffer), {
+    ["Content-Type"]: contentType,
+  });
+}
+
 export async function deleteFile(path: string) {
   await minio.removeObject(MINIO_BUCKET, path, { forceDelete: true });
 }
@@ -70,6 +76,7 @@ export const fileLocation = {
       `${ROOT}/user/profile-image-${userId}/${name || ""}`,
     attachment: (userId: string, name?: string) =>
       `${ROOT}/user/attachment-${userId}/${name || ""}`,
+    signature: (userId: string) => `${ROOT}/user/signature-${userId}`,
   },
   customer: {
     img: (customerId: string, name?: string) => `${ROOT}/customer/img-${customerId}/${name || ""}`,