forked from xunyixiangchao/goindex
-
Notifications
You must be signed in to change notification settings - Fork 0
/
index.js
310 lines (271 loc) · 9.4 KB
/
index.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
var authConfig = {
"siteName": "GoIndex", // 网站名称
"root_pass": "index", // 根目录密码，优先于.password
"version" : "1.0.6", // 程序版本
"theme" : "material", // material classic
"client_id": "202264815644.apps.googleusercontent.com",
"client_secret": "X4Z3ca8xfWDb1Voo-F9a7ZxJ",
"refresh_token": "", // 授权 token
"root": "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>${authConfig.siteName}</title>
<script src="//cdn.jsdelivr.net/combine/gh/jquery/jquery@3.2/dist/jquery.min.js,gh/donwa/goindex@${authConfig.version}/themes/${authConfig.theme}/app.js"></script>
</head>
<body>
</body>
</html>
`;
addEventListener('fetch', event => {
event.respondWith(handleRequest(event.request));
});
/**
* Fetch and log a request
* @param {Request} request
*/
async function handleRequest(request) {
if(gd == undefined){
gd = new googleDrive(authConfig);
}
if(request.method == 'POST'){
return apiRequest(request);
}
let url = new URL(request.url);
let path = url.pathname;
let action = url.searchParams.get('a');
if(path.substr(-1) == '/' || action != null){
return new Response(html,{status:200,headers:{'Content-Type':'text/html; charset=utf-8'}});
}else{
if(path.split('/').pop().toLowerCase() == ".password"){
return new Response("",{status:404});
}
let file = await gd.file(path);
let range = request.headers.get('Range');
return gd.down(file.id, range);
}
}
async function apiRequest(request) {
let url = new URL(request.url);
let path = url.pathname;
let option = {status:200,headers:{'Access-Control-Allow-Origin':'*'}}
if(path.substr(-1) == '/'){
// check password
let password = await gd.password(path);
console.log("dir password", password);
if(password != undefined && password != null && password != ""){
try{
var obj = await request.json();
}catch(e){
var obj = {};
}
console.log(password,obj);
if(password != obj.password){
let html = `{"error": {"code": 401,"message": "password error."}}`;
return new Response(html,option);
}
}
let list = await gd.list(path);
return new Response(JSON.stringify(list),option);
}else{
let file = await gd.file(path);
let range = request.headers.get('Range');
return new Response(JSON.stringify(file));
}
}
class googleDrive {
constructor(authConfig) {
this.authConfig = authConfig;
this.paths = [];
this.files = [];
this.passwords = [];
this.paths["/"] = authConfig.root;
if(authConfig.root_pass != ""){
this.passwords["/"] = authConfig.root_pass;
}
this.accessToken();
}
async down(id, range=''){
let url = `https://www.googleapis.com/drive/v3/files/${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){
let id = await this.findPathId(path);
return this._ls(id);
}
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/${file.id}?alt=media`;
let requestOption = await this.requestOption();
let response = await this.fetch200(url, requestOption);
this.passwords[path] = await response.text();
}
return this.passwords[path];
}
async _ls(parent){
console.log("_ls",parent);
if(parent==undefined){
return null;
}
let url = 'https://www.googleapis.com/drive/v3/files';
let params = {'includeItemsFromAllDrives':true,'supportsAllDrives':true};
params.q = `'${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;
url += '?'+this.enQuery(params);
let requestOption = await this.requestOption();
let response = await fetch(url, requestOption);
let obj = await response.json();
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, '');
};