Hello, my name is urain39!
I am a developer who like to writing programs in Python, JavaScript, and C-Like Languages :)
SAW Aria2 WebUI's RPC Protocol Component
onNotify
Line 116 in b074129
export type ARIA2OptionsWithout<T extends keyof ARIA2Options, U extends ARIA2Optional<ARIA2Options>> = {
[key in Exclude<keyof U, T>]: U[key];
};
目前我们的实现里是将异常当做是参数直接传给resolve的,这样或许不太直观。所以我打算用reject回调将异常变为async function可以catch的异常。
export type ARIA2Result<T> = ArgumentsType<JSONRPCHandler> extends [any, JSONRPCError, ...infer R] ? [T, JSONRPCError, ...R] : any[];
import { ARIA2, ARIA2Event } from './lib/saw-rpc/src/index';
import { promises as fs } from 'fs';
import * as path from 'path';
import { w3cwebsocket as WebSocket } from 'websocket';
import { rpcPath, secret } from './config.json';
// @ts-ignore
global.WebSocket = WebSocket;
const UNDEFINED = void 22;
const aria2 = new ARIA2(rpcPath, secret);
// 检查当前执行状态
(async function () {
try {
await aria2.tellActive(['gid']);
} catch (e) {
console.log('Wrong rpcPath or secret!');
process.exit(1);
}
})();
// 绑定事件处理回调
async function onDownloadComplete(ev: ARIA2Event) {
const status = await aria2.tellStatus(ev.gid, ['dir', 'files']);
const dir = status.dir;
const files = status.files;
if (dir !== UNDEFINED && files !== UNDEFINED) {
const titleName = ARIA2.getTitleName(files[0], dir);
const controlFile = path.join(dir, titleName + '.aria2');
try {
console.log(`aria2-watchdog: removing control file of completed '${titleName}'...`);
await fs.unlink(controlFile);
} catch (e) {
console.error(e);
}
}
}
aria2.onNotify('aria2.onBtDownloadComplete', onDownloadComplete);
aria2.onNotify('aria2.onDownloadComplete', onDownloadComplete);
aria2.onNotify('aria2.onDownloadError', async function (ev: ARIA2Event) {
const status = await aria2.tellStatus(ev.gid, ['dir', 'files']);
const dir = status.dir;
const files = status.files;
if (dir !== UNDEFINED && files !== UNDEFINED) {
const titleName = ARIA2.getTitleName(files[0], dir);
const filePath = path.join(dir, titleName);
const controlFile = filePath + '.aria2';
try {
console.log(`aria2-watchdog: removing fault files of '${titleName}'...`);
await fs.rm(filePath, { 'force': true, 'recursive': true });
await fs.unlink(controlFile);
} catch (e) {
console.error(e);
}
}
});
如题,晚点补上。
Line 168 in a4e5baa
目前Aria2返回的数据中的类型都是字符串,这一点让人很头疼。我在想如果可以的话,我想写一个简单的预解析器,遍历整个返回的对象,将数据类型转换为标准类型。
当将dir
设置为/xxxx/
(以文件夹分隔符结尾)时,我们获取的文件名就变成了''
。这个问题应该是 Aria2 的造成的,它返回的数据里就有以连续的文件夹分隔符隔开的路径,如:F:/path/to//file
。
解决方法:我们只需要将源码中的三元表达式改写成无论如何都加上1,跳过分隔符就行了。
/**
* 关于JSONRPC的实现
*
* 下面列出了一些WS与XHR最主要的区别:
*
* 前者可以多次请求和响应,但求后不能直接添加对应的回调
* 。所以应该在请求后将请求id和处理回调放到等待列表里,
* 当接收数据的回调被调用时,应该根据接收数据的id去查找
* 是否有对应的数据处理回调。其是“有问不一定答”类型。
*
* 后者实现上因为每次都需要重新初始化对象,所以回调直接绑定
* 在初始化后的对象上即可。换个角度来说,XHR模式下的id其实
* 没有什么用,因为他本身就是“有问必答”类型的。
*
* 不过如果我们需要统计当前请求数量的话,那么这个id还是有点用的。
*/
差点忘了,我们内部对数据进行了预处理,但是发送时还应该是以字符串的形式发送的。不过这里的数据预处理比之前做的要简单很多,直接一次全局遍历,都不带判断的那种,将所有的数据转换为字符串就可以了。
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