refactor: private/group image rkey

src/ntqqapi/api/file.ts

@@ -12,13 +12,15 @@ import {
 import path from "path";
 import fs from "fs";
 import {ReceiveCmdS} from "../hook";
-import {log} from "../../common/utils/log";
+import {log} from "../../common/utils";
 import http from "http";
 import {sleep} from "../../common/utils";
 import {hookApi} from "../external/moehook/hook";
 
 let privateImageRKey = '';
 let groupImageRKey = '';
+let lastGetRKeyTime = 0;
+const rkeyExpireTime = 1000 * 60 * 30;
 
 export class NTQQFileApi {
   static async getFileType(filePath: string) {
@@ -139,6 +141,7 @@ export class NTQQFileApi {
   }
 
   static async getImageUrl(msg: RawMessage) {
+    const isPrivateImage = msg.chatType !== ChatType.group;
     const msgElement = msg.elements.find(e => !!e.picElement);
     if (!msgElement) {
       return '';
@@ -147,118 +150,67 @@ export class NTQQFileApi {
     const md5HexStr = msgElement.picElement.md5HexStr;
     const fileMd5 = msgElement.picElement.md5HexStr;
     const fileUuid = msgElement.picElement.fileUuid;
-    let imageUrl = '';
-    // let currentRKey = "CAQSKAB6JWENi5LMk0kc62l8Pm3Jn1dsLZHyRLAnNmHGoZ3y_gDZPqZt-64"
     if (url) {
       if (url.startsWith('/download')) {
         // console.log('rkey', rkey);
         if (url.includes('&rkey=')) {
-          imageUrl = IMAGE_HTTP_HOST_NT + url;
-        } else {
+          return IMAGE_HTTP_HOST_NT + url;
+        }
+
         if (!hookApi.isAvailable()) {
           log('hookApi is not available');
           return '';
         }
-          let isPrivateImage = false;
-          if (url.indexOf('appid=1406') !== -1) {
-            // 私聊图片
-            isPrivateImage = true;
-          }
-          let rkey = '';
-          if (isPrivateImage) {
-            rkey = privateImageRKey;
+
+        const saveRKey = (rkey: string)=>{
+          if(isPrivateImage){
+            privateImageRKey = rkey;
           }
           else {
-            rkey = groupImageRKey;
-          }
-          rkey = rkey || hookApi.getRKey();
-          const saveRKey = ()=>{
-            if (isPrivateImage){
-              privateImageRKey = rkey;
-            }else {
             groupImageRKey = rkey;
           }
+          lastGetRKeyTime = Date.now();
         };
+
         const refreshRKey = async () => {
-            log('正在获取图片rkey...');
+          log('获取图片rkey...');
           NTQQFileApi.downloadMedia(msg.msgId, msg.chatType, msg.peerUid, msgElement.elementId, '', msgElement.picElement.sourcePath, true).then().catch(() => {
           });
-            await sleep(300);
+          await sleep(1000);
           const _rkey = hookApi.getRKey();
           if (_rkey) {
-              rkey = _rkey;
-              log('图片rkey获取成功', rkey);
+            log('图片rkey获取成功', _rkey);
+            saveRKey(_rkey);
+            return _rkey;
           }
         };
-          if (!rkey) {
-            // 下载一次图片获取rkey
-            try {
-              await refreshRKey();
-            } catch (e) {
-              log('获取图片rkey失败', e);
+
+        const existsRKey = isPrivateImage ? privateImageRKey : groupImageRKey;
+        if ((Date.now() - lastGetRKeyTime > rkeyExpireTime) || !existsRKey) {
+          // rkey过期
+          const newRKey = await refreshRKey();
+          if (newRKey){
+            return IMAGE_HTTP_HOST_NT + url + `${newRKey}`;
+          }
+          else{
+            log('图片rkey获取失败', url);
             return '';
           }
         }
-          imageUrl = IMAGE_HTTP_HOST_NT + url + `${rkey}`;
-          // 调用head请求获取图片rkey是否正常
-          const checkUrl = new Promise((resolve, reject) => {
-            const uri = new URL(imageUrl);
-            const options = {
-              method: 'GET',
-              host: uri.host,
-              path: uri.pathname + uri.search,
-              headers: {
-                'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36',
-                'Accept': '*/*',
-                'Range': 'bytes=0-0'
-              }
-            };
-            const req = http.request(options, (res) => {
-              console.log(`Check rkey status: ${res.statusCode}`);
-              console.log(`Check rkey headers: ${JSON.stringify(res.headers)}`);
-              if (res.statusCode == 200 || res.statusCode === 206) {
-                // console.log('The image URL is accessible.');
-                resolve('ok');
-              } else {
-                reject('The image URL is not accessible.');
-              }
-            });
-
-            req.setTimeout(3000, () => {
-              req.destroy();
-              reject('Check rkey request timed out');
-            });
-
-            req.on('error', (e) => {
-              console.error(`Problem with rkey request: ${e.message}`);
-              reject(e.message);
-            });
-            req.end();
-          });
-          try {
-            const start = Date.now();
-            await checkUrl;
-            const end = Date.now();
-            log('Check rkey request time:', end - start);
-            saveRKey();
-          } catch (e) {
-            try {
-              await refreshRKey();
-              saveRKey();
-              imageUrl = IMAGE_HTTP_HOST_NT + url + `${rkey}`;
-            } catch (e) {
-              log('获取rkey失败', e);
-            }
-          }
+        // 使用未过期的rkey
+        if (existsRKey){
+          return IMAGE_HTTP_HOST_NT + url + `${existsRKey}`;
         }
       } else {
-        imageUrl = IMAGE_HTTP_HOST + url;
+        // 老的图片url，不需要rkey
+        return IMAGE_HTTP_HOST + url;
       }
     } else if (fileMd5 || md5HexStr) {
-      imageUrl = `${IMAGE_HTTP_HOST}/gchatpic_new/0/0-0-${(fileMd5 || md5HexStr)!.toUpperCase()}/0`;
+      // 没有url，需要自己拼接
+      return `${IMAGE_HTTP_HOST}/gchatpic_new/0/0-0-${(fileMd5 || md5HexStr)!.toUpperCase()}/0`;
     }
-
-    return imageUrl;
+    log('图片url获取失败', msg);
+    return '';
   }
 
 }