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goindex.js
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goindex.js
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var authConfig = {
siteName: "盘Ta", // 网站名称
root_pass: "", // 根目录密码，优先于.password
version: "1.0.0", // 程序版本
client_id: "202264815644.apps.googleusercontent.com",
client_secret: "X4Z3ca8xfWDb1Voo-F9a7ZxJ",
refresh_token: "", // 授权 token
root: "" // 根目录ID
};
var gd;
var html = `
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0,maximum-scale=1.0, user-scalable=no"/>
<title>${authConfig.siteName}</title>
<script src="//lib.baomitu.com/jquery/3.4.1/jquery.min.js"></script>
<script src="//cdn.jsdelivr.net/combine/gh/Hidove/goindex/app.js"></script>
</head>
<body>
</body>
</html>
`;
addEventListener("fetch", event => {
event.respondWith(handleRequest(event.request));
});
/**
* Fetch and log a request
* @param {Request} request
*/
async function handleRequest(request) {
if (gd == undefined) {
gd = new googleDrive(authConfig);
}
if (request.method == "POST") {
return apiRequest(request);
}
let url = new URL(request.url);
let path = url.pathname;
let action = url.searchParams.get("a");
if (path.substr(-1) == "/" || action != null) {
return new Response(html, {
status: 200,
headers: { "Content-Type": "text/html; charset=utf-8" }
});
} else {
if (
path
.split("/")
.pop()
.toLowerCase() == ".password"
) {
return new Response("", { status: 404 });
}
let file = await gd.file(path);
let range = request.headers.get("Range");
return gd.down(file.id, range);
}
}
async function apiRequest(request) {
let url = new URL(request.url);
let path = url.pathname;
let option = { status: 200, headers: { "Access-Control-Allow-Origin": "*" } };
if (path.substr(-1) == "/") {
// check password
let password = await gd.password(path);
console.log("dir password", password);
if (password != undefined && password != null && password != "") {
try {
var obj = await request.json();
} catch (e) {
var obj = {};
}
console.log(password, obj);
if (password.replace("\n", "") != obj.password) {
let html = `{"error": {"code": 401,"message": "password error."}}`;
return new Response(html, option);
}
}
let list = await gd.list(path);
return new Response(JSON.stringify(list), option);
} else {
let file = await gd.file(path);
let range = request.headers.get("Range");
return new Response(JSON.stringify(file));
}
}
class googleDrive {
constructor(authConfig) {
this.authConfig = authConfig;
this.paths = [];
this.files = [];
this.passwords = [];
this.paths["/"] = authConfig.root;
if (authConfig.root_pass != "") {
this.passwords["/"] = authConfig.root_pass;
}
this.accessToken();
}
async down(id, range = "") {
let url = `https://www.googleapis.com/drive/v3/files/${id}?alt=media`;
let requestOption = await this.requestOption();
requestOption.headers["Range"] = range;
return await fetch(url, requestOption);
}
async file(path) {
if (typeof this.files[path] == "undefined") {
this.files[path] = await this._file(path);
}
return this.files[path];
}
async _file(path) {
let arr = path.split("/");
let name = arr.pop();
name = decodeURIComponent(name).replace(/\'/g, "\\'");
let dir = arr.join("/") + "/";
console.log(name, dir);
let parent = await this.findPathId(dir);
console.log(parent);
let url = "https://www.googleapis.com/drive/v3/files";
let params = { includeItemsFromAllDrives: true, supportsAllDrives: true };
params.q = `'${parent}' in parents and name = '${name}' andtrashed = false`;
params.fields =
"files(id, name, mimeType, size ,createdTime, modifiedTime, iconLink, thumbnailLink)";
url += "?" + this.enQuery(params);
let requestOption = await this.requestOption();
let response = await fetch(url, requestOption);
let obj = await response.json();
console.log(obj);
return obj.files[0];
}
// 通过reqeust cache 来缓存
async list(path) {
if (gd.cache == undefined) {
gd.cache = {};
}
if (gd.cache[path]) {
return gd.cache[path];
}
let id = await this.findPathId(path);
var obj = await this._ls(id);
if (obj.files && obj.files.length > 1000) {
gd.cache[path] = obj;
}
return obj;
}
async password(path) {
if (this.passwords[path] !== undefined) {
return this.passwords[path];
}
console.log("load", path, ".password", this.passwords[path]);
let file = await gd.file(path + ".password");
if (file == undefined) {
this.passwords[path] = null;
} else {
let url = `https://www.googleapis.com/drive/v3/files/${file.id}?alt=media`;
let requestOption = await this.requestOption();
let response = await this.fetch200(url, requestOption);
this.passwords[path] = await response.text();
}
return this.passwords[path];
}
async _ls(parent) {
console.log("_ls", parent);
if (parent == undefined) {
return null;
}
const files = [];
let pageToken;
let obj;
let params = { includeItemsFromAllDrives: true, supportsAllDrives: true };
params.q = `'${parent}' in parents and trashed = false AND name !='.password'`;
params.orderBy = "folder,name,modifiedTime desc";
params.fields =
"nextPageToken, files(id, name, mimeType, size , modifiedTime)";
params.pageSize = 1000;
do {
if (pageToken) {
params.pageToken = pageToken;
}
let url = "https://www.googleapis.com/drive/v3/files";
url += "?" + this.enQuery(params);
let requestOption = await this.requestOption();
let response = await fetch(url, requestOption);
obj = await response.json();
files.push(...obj.files);
pageToken = obj.nextPageToken;
} while (pageToken);
obj.files = files;
return obj;
}
async findPathId(path) {
let c_path = "/";
let c_id = this.paths[c_path];
let arr = path.trim("/").split("/");
for (let name of arr) {
c_path += name + "/";
if (typeof this.paths[c_path] == "undefined") {
let id = await this._findDirId(c_id, name);
this.paths[c_path] = id;
}
c_id = this.paths[c_path];
if (c_id == undefined || c_id == null) {
break;
}
}
console.log(this.paths);
return this.paths[path];
}
async _findDirId(parent, name) {
name = decodeURIComponent(name).replace(/\'/g, "\\'");
console.log("_findDirId", parent, name);
if (parent == undefined) {
return null;
}
let url = "https://www.googleapis.com/drive/v3/files";
let params = { includeItemsFromAllDrives: true, supportsAllDrives: true };
params.q = `'${parent}' in parents and mimeType = 'application/vnd.google-apps.folder' and name = '${name}' and trashed = false`;
params.fields = "nextPageToken, files(id, name, mimeType)";
url += "?" + this.enQuery(params);
let requestOption = await this.requestOption();
let response = await fetch(url, requestOption);
let obj = await response.json();
if (obj.files[0] == undefined) {
return null;
}
return obj.files[0].id;
}
async accessToken() {
console.log("accessToken");
if (
this.authConfig.expires == undefined ||
this.authConfig.expires < Date.now()
) {
const obj = await this.fetchAccessToken();
if (obj.access_token != undefined) {
this.authConfig.accessToken = obj.access_token;
this.authConfig.expires = Date.now() + 3500 * 1000;
}
}
return this.authConfig.accessToken;
}
async fetchAccessToken() {
console.log("fetchAccessToken");
const url = "https://www.googleapis.com/oauth2/v4/token";
const headers = {
"Content-Type": "application/x-www-form-urlencoded"
};
const post_data = {
client_id: this.authConfig.client_id,
client_secret: this.authConfig.client_secret,
refresh_token: this.authConfig.refresh_token,
grant_type: "refresh_token"
};
let requestOption = {
method: "POST",
headers: headers,
body: this.enQuery(post_data)
};
const response = await fetch(url, requestOption);
return await response.json();
}
async fetch200(url, requestOption) {
let response;
for (let i = 0; i < 3; i++) {
response = await fetch(url, requestOption);
console.log(response.status);
if (response.status != 403) {
break;
}
await this.sleep(800 * (i + 1));
}
return response;
}
async requestOption(headers = {}, method = "GET") {
const accessToken = await this.accessToken();
headers["authorization"] = "Bearer " + accessToken;
return { method: method, headers: headers };
}
enQuery(data) {
const ret = [];
for (let d in data) {
ret.push(encodeURIComponent(d) + "=" + encodeURIComponent(data[d]));
}
return ret.join("&");
}
sleep(ms) {
return new Promise(function(resolve, reject) {
let i = 0;
setTimeout(function() {
console.log("sleep" + ms);
i++;
if (i >= 2) reject(new Error("i>=2"));
else resolve(i);
}, ms);
});
}
}
String.prototype.trim = function(char) {
if (char) {
return this.replace(
new RegExp("^\\" + char + "+|\\" + char + "+$", "g"),
""
);
}
return this.replace(/^\s+|\s+$/g, "");
};