- add file.controller.ts and File.ts for downloading files from server

- allow Get and Post form Oia/Index method

src/controllers/file.controller.ts

@@ -0,0 +1,54 @@
+import { Controller, Get } from "@overnightjs/core";
+import { File } from "../models/init-models.js";
+import { StatusCodes } from "http-status-codes";
+import { Request, Response } from "express";
+import * as path from "path";
+import * as fs from "fs";
+
+@Controller("file")
+export class FileController {
+    constructor() {}
+
+    @Get("download/:id")
+    public async findOne(req: Request, res: Response) {
+        const id = req.params.id;
+        const file = await File.findOne({
+            where: { id: id },
+        });
+        if (file) {
+            let filePath = "/storage/app/public/" + file.path_name;
+            const ext = path.extname(filePath);
+            let fileName = file.label + ext;
+            try {
+                fs.accessSync(filePath, fs.constants.R_OK | fs.constants.W_OK);
+                // console.log("can read/write:", path);
+                res.set({
+                    "Cache-Control": "no-cache private",
+                    "Content-Description": "File Transfer",
+                    "Content-Type": file.mime_type,
+                    "Content-Disposition": "inline; filename=" + fileName,
+                    "Content-Transfer-Encoding": "binary",
+                });
+                res.status(StatusCodes.OK).sendFile(filePath);
+              } catch (err) {
+                // console.log("no access:", path);
+                res.status(StatusCodes.NOT_FOUND).send({
+                    message: `File with id ${id} doesn't exist on file server`,
+                });
+              }
+           
+            
+            // res.status(StatusCodes.OK).sendFile(filePath, (err) => {
+            //     // res.setHeader("Content-Type", "application/json");
+            //     // res.removeHeader("Content-Disposition");
+            //     res.status(StatusCodes.NOT_FOUND).send({
+            //         message: `File with id ${id} doesn't exist on file server`,
+            //     });
+            // });
+        } else {
+            res.status(StatusCodes.NOT_FOUND).send({
+                message: `Cannot find File with id=${id}.`,
+            });
+        }
+    }
+}

src/controllers/oai.controller.ts

@@ -1,4 +1,4 @@
-import { Controller, Get } from "@overnightjs/core";
+import { Controller, Get, Post } from "@overnightjs/core";
 import Sequelize from "sequelize";
 import { NextFunction, Request, Response } from "express";
 import { StatusCodes } from "http-status-codes";
@@ -55,6 +55,7 @@ export class OaiController {
         this.configuration = new Configuration();
     }
 
+    @Post("")
     @Get("")
     public async index(request: Request, response: Response, next: NextFunction) {
         this.xml = create(
@@ -87,7 +88,6 @@ export class OaiController {
         try {
             await this.handleRequest(oaiRequest, request);
         } catch (error) {
-            // return next(error);
             if (error instanceof OaiModelException) {
                 this.xsltParameter["oai_error_code"] = error.oaiCode;
                 this.xsltParameter["oai_error_message"] = error.message;
@@ -151,7 +151,7 @@ export class OaiController {
         // $this->loadStyleSheet('datasetxml2oai-pmh.xslt');
 
         // Set response time
-        const now: dayjs.Dayjs = dayjs();
+        const now: Dayjs = dayjs();
         this.xsltParameter["responseDate"] = now.format("YYYY-MM-DDThh:mm:ss[Z]");
         this.xsltParameter["unixTimestamp"] = now.unix();
 
@@ -182,12 +182,8 @@ export class OaiController {
                 this.handleIllegalVerb();
             }
         } else {
-            // const err = new HttpException(404, 'Not Found')
-            // next(err);
-
             // try {
             //     console.log("Async code example.")
-            // const err = new HttpException(404, 'Not Found');
             const err = new PageNotFoundException("verb not found");
             throw err;
             // } catch (error) { // manually catching
@@ -363,21 +359,8 @@ export class OaiController {
         let totalIds = 0;
         let start = maxRecords + 1;
         let reldocIds: (number | null)[] = [];
-
         let metadataPrefix = null;
 
-        // const tokenWorker = new TokenWorker(86400);
-        // await tokenWorker.connect();
-        // $tokenWorker->setResumptionPath($tokenTempPath);
-        // const url = process.env.REDIS_URL || "redis://redis:6379";
-        // const redisClient = createClient({
-        //    url
-        // });
-        // redisClient.on('error', (error) => {
-        //     const err = new InternalServerErrorException("Error occured while connecting or accessing redis server'");
-        //     throw err;
-        // });
-
         // resumptionToken is defined
         if ("resumptionToken" in oaiRequest) {
             const resParam = oaiRequest["resumptionToken"]; //e.g. "158886496600000"