feat:版本迭代

backend/src/controllers/teleImages.ts

@@ -0,0 +1,57 @@
+import axios, { AxiosInstance } from "axios";
+import { Request, Response } from "express";
+import tunnel from "tunnel";
+import GlobalSetting from "../models/GlobalSetting";
+import { GlobalSettingAttributes } from "../models/GlobalSetting";
+
+export class ImageControll {
+  private axiosInstance: AxiosInstance | null = null;
+  private isUpdate = false;
+
+  constructor() {
+    this.initializeAxiosInstance();
+  }
+
+  private async initializeAxiosInstance(isUpdate = false) {
+    let settings = null;
+    if (isUpdate) {
+      settings = await GlobalSetting.findOne();
+      this.isUpdate = isUpdate;
+    } else {
+      return;
+    }
+    const globalSetting = settings?.dataValues || ({} as GlobalSettingAttributes);
+    this.axiosInstance = axios.create({
+      timeout: 3000,
+      httpsAgent: tunnel.httpsOverHttp({
+        proxy: {
+          host: globalSetting.httpProxyHost,
+          port: globalSetting.httpProxyPort,
+          headers: {
+            "Proxy-Authorization": "",
+          },
+        },
+      }),
+      withCredentials: true,
+    });
+  }
+  async getImages(req: Request, res: Response, url: string) {
+    try {
+      if (!this.isUpdate) await this.initializeAxiosInstance(true);
+      const response = await this.axiosInstance?.get(url, { responseType: "stream" });
+      res.set("Content-Type", response?.headers["content-type"]);
+      response?.data.pipe(res);
+    } catch (error) {
+      res.status(500).send("Image fetch error");
+    }
+  }
+}
+
+const iamgesInstance = new ImageControll();
+
+export const imageControll = {
+  getImages: async (req: Request, res: Response) => {
+    const url = req.query.url as string;
+    iamgesInstance.getImages(req, res, url);
+  },
+};