antosdk-apps/vfsx/gdv.ts

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2021-10-12 12:22:12 +02:00
namespace OS {
export namespace API {
export namespace VFS {
declare var gapi: any;
interface GAPITYPE {
CLIENT_ID: string;
API_KEY: string;
apilink: string;
DISCOVERY_DOCS: string[];
SCOPES: string;
uploadlink: string; //
logout: string;
};
let G_CACHE = {"gdv://":{ id: "root", mime: 'dir' } };
export class GoogleDriveHandle extends BaseFileHandle {
private gid: string;
static API_META: GAPITYPE;
private local_copy: BaseFileHandle;
constructor(path: string) {
super(path);
if (!GoogleDriveHandle.API_META) {
OS.announcer.oserror( __("Unknown API setting for GAPI"),
OS.API.throwe("OS.VFS"));
return undefined;
}
if (this.isRoot()) {
this.gid = 'root';
}
this.cache = "";
this.local_copy = undefined;
}
private fields(): string {
return "webContentLink, id, name,mimeType,description, kind, parents, properties, iconLink, createdTime, modifiedTime, owners, permissions, fullFileExtension, fileExtension, size, version";
}
private isFolder(): boolean {
return this.info.mimeType === "application/vnd.google-apps.folder";
}
private load(promise: Promise<any>): Promise<any> {
const q = API.mid();
return new Promise(async (resolve, reject) => {
API.loading(q, "GAPI");
try {
let ret = await promise;
API.loaded(q, "GAPI", "OK");
return resolve(ret);
} catch (e) {
API.loaded(q, "GAPI", "FAIL");
return reject(__e(e));
}
});
}
private sync(meta_data?: GenericObject<any>): Promise<any>
{
return new Promise(async (resolve, reject) => {
try{
if((!this.info || this.info.version != meta_data.version) && meta_data.mimeType !== "application/vnd.google-apps.folder")
{
await VFS.mkdirAll([
"home://.gdv_cache",
`home://.gdv_cache/${meta_data.id}`
], true);
let copy = `home://.gdv_cache/${meta_data.id}/${meta_data.version}.${meta_data.fullFileExtension}`.asFileHandle();
try
{
let r = await copy.onready();
}
catch(e1)
{
await `home://.gdv_cache/${meta_data.id}`.asFileHandle().remove();
await VFS.mkdirAll([`home://.gdv_cache/${meta_data.id}`]);
let r = await this.load(gapi.client.drive.files.get({
fileId: meta_data.id,
alt: 'media'
}));
if (!r.body) {
throw new Error(__("VFS cannot download file : {0}", this.path).__());
}
copy.cache = new Blob([r.body.asUint8Array()], { type: "octet/stream" });
await copy.write(meta_data.mimeType);
}
this.local_copy = copy;
resolve(true);
}
else
{
resolve(true);
}
}
catch(e)
{
OS.announcer.oserror(e.toString(), e);
reject(__e(e));
}
});
}
meta(): Promise<RequestResult> {
return new Promise(async (resolve, reject) => {
try{
await this.oninit();
if (G_CACHE[this.path]) { this.gid = G_CACHE[this.path].id; };
if(this.gid)
{
let ret = await this.load(gapi.client.drive.files.get({
fileId: this.gid,
fields: this.fields()
}));
if (ret.result) {
ret.result.mime = ret.result.mimeType;
await this.load(this.sync(ret.result));
resolve(ret);
}
else
{
throw new Error(__("VFS cannot get meta data for {0}", this.gid).__());
}
}
else
{
const fp = this.parent().asFileHandle();
let d = await fp.meta();
const file: any = d.result;
G_CACHE[fp.path] = { id: file.id, mime: file.mimeType };
let r = await this.load(gapi.client.drive.files.list({
q: `name = '${this.basename}' and '${file.id}' in parents and trashed = false`,
fields: `files(${this.fields()})`
}));
if (!r.result.files || !(r.result.files.length > 0)) {
throw new Error(__("VFS cannot get meta data for {0}", this.path).__());
}
else
{
G_CACHE[this.path] = { id: r.result.files[0].id, mime: r.result.files[0].mimeType };
r.result.files[0].mime = r.result.files[0].mimeType;
this.gid = G_CACHE[this.path].id;
await this.load(this.sync(r.result.files[0]));
resolve({ result: r.result.files[0], error: false});
}
}
}
catch(e)
{
OS.announcer.oserror(e.toString(), e);
reject(__e(e));
}
});
}
private oninit(): Promise<any> {
return new Promise(async (resolve, reject) => {
const fn = async function(r: boolean) {
if (r) { return resolve(true); }
// perform the login
G_CACHE = {"gdv://":{ id: "root", mime: 'dir' } };
try {
let ret = await gapi.auth2.getAuthInstance().signIn();
resolve(ret);
}
catch(e)
{
reject(__e(e));
}
};
try {
if(!GoogleDriveHandle.API_META)
{
throw new Error(__("No GAPI meta found").__());
}
if(!API.libready(GoogleDriveHandle.API_META.apilink))
{
await this.load(API.requires(GoogleDriveHandle.API_META.apilink, false));
// load the api
await this.load(new Promise((res,rej) => {
gapi.load('client:auth2', res);
}));
await this.load(gapi.client.init({
apiKey: GoogleDriveHandle.API_META.API_KEY,
clientId: GoogleDriveHandle.API_META.CLIENT_ID,
discoveryDocs: GoogleDriveHandle.API_META.DISCOVERY_DOCS,
scope: GoogleDriveHandle.API_META.SCOPES
}));
gapi.auth2.getAuthInstance().isSignedIn.listen(r => fn(r));
let ret = await GUI.openDialog("YesNoDialog", {
title: __("Authentication"),
text: __("Would you like to login to GoogleDrive?")
});
if(!ret)
{
throw new Error(__("User abort the authentication").__());
}
else
{
fn(gapi.auth2.getAuthInstance().isSignedIn.get());
}
}
else
{
gapi.auth2.getAuthInstance().isSignedIn.listen(r => fn(r));
fn(gapi.auth2.getAuthInstance().isSignedIn.get());
}
}
catch (e) {
OS.announcer.oserror(e.toString(), e);
reject(__e(e));
}
})
}
getlink() {
if (this.local_copy) { return this.local_copy.getlink(); }
return undefined;
}
private child(name: string): string
{
if(this.isFolder())
return `${this.path}/${name}`
return undefined
}
/**
* Low level protocol-specific read operation
*
* @protected
* @param {string} t data type, see [[read]]
* @returns {Promise<RequestResult>}
* @memberof BaseFileHandle
*/
protected _rd(t: string): Promise<RequestResult> {
return new Promise(async (resolve, reject) => {
try{
if(!this.info.id)
{
throw new Error(__("File ID is not valid").__());
}
if(this.isFolder())
{
let r = await this.load(gapi.client.drive.files.list({
q: `'${this.info.id}' in parents and trashed = false`,
fields: `files(${this.fields()})`
}));
if(!r.result.files)
{
throw new Error(__("File {0} not found", this.info.id).__());
}
for (let file of r.result.files) {
file.path = this.child(file.name);
file.mime = file.mimeType;
file.filename = file.name;
file.type = "file";
file.gid = file.id;
if (file.mimeType === "application/vnd.google-apps.folder") {
file.mime = "dir";
file.type = "dir";
file.size = 0;
}
G_CACHE[file.path] = { id: file.gid, mime: file.mime };
}
resolve({ result: r.result.files, error: false});
}
else
{
if(!this.local_copy)
{
throw new Error(__("Cannot find local copy of file; {0}", this.path).__());
}
/*
let r = await this.load(gapi.client.drive.files.get({
fileId: this.info.id,
alt: 'media'
}));
if (t !== "binary") {
resolve(r.body);
}
else
{
resolve(r.body.asUint8Array());
}*/
let r = await this.local_copy.read(t);
resolve(r);
}
}
catch(e)
{
OS.announcer.oserror(e.toString(), e);
reject(__e(e));
}
});
}
private save(gid: string, t: string): Promise<any>
{
return new Promise(async (resolve, reject) => {
try
{
const user = gapi.auth2.getAuthInstance().currentUser.get();
const oauthToken = user.getAuthResponse().access_token;
const xhr = new XMLHttpRequest();
const url = __(GoogleDriveHandle.API_META.uploadlink,gid).__();
xhr.open('PATCH', url);
xhr.setRequestHeader('Authorization', 'Bearer ' + oauthToken);
xhr.setRequestHeader('Content-Type', t);
xhr.setRequestHeader('Content-Encoding', 'base64');
xhr.setRequestHeader('Content-Transfer-Encoding', 'base64');
let error = (e:Error) => {
OS.announcer.oserror(__("VFS cannot save : {0}", this.path), e);
return reject(e);
};
xhr.onreadystatechange = () => {
if ( xhr.readyState === 4 ) {
if ( xhr.status === 200 ) {
return resolve({ result: JSON.parse(xhr.responseText), error: false});
} else {
error(OS.API.throwe("OS.VFS"));
}
}
};
xhr.onerror = () => error(OS.API.throwe("OS.VFS"));
let data = this.cache;
if (t !== "base64") {
data = await this.b64(t);
}
xhr.send(data.replace(/^data:[^;]+;base64,/g, ""));
resolve(true);
}
catch(e)
{
reject(__e(e));
}
});
}
/**
* Low level protocol-specific write operation
*
* @protected
* @param {string} t data type, see [[write]]
* @param {*} [d]
* @returns {Promise<RequestResult>}
* @memberof BaseFileHandle
*/
protected _wr(t: string, d?: any): Promise<RequestResult> {
return new Promise(async (resolve, reject) => {
try{
var gid = undefined;
if (G_CACHE[this.path]) {
gid = G_CACHE[this.path].id;
}
if (gid) {
resolve(await this.load(this.save(gid, t)));
}
else
{
const dir = this.parent().asFileHandle();
await dir.onready();
const meta = {
name: this.basename,
mimeType: t,
parents: [dir.info.id]
};
let r = await this.load(gapi.client.drive.files.create({
resource: meta,
fields: 'id'
}));
if (!r || !r.result) {
throw new Error(__("VFS cannot write : {0}", this.path).__());
}
G_CACHE[this.path] = { id: r.result.id, mime: t };
resolve(this.load(this.save(r.result.id, t)));
}
}
catch(e)
{
OS.announcer.oserror(e.toString(), e);
reject(__e(e));
}
});
}
/**
* Low level protocol-specific sub-directory creation
*
* @protected
* @param {string} d sub directory name
* @returns {Promise<RequestResult>}
* @memberof BaseFileHandle
*/
protected _mk(d: string): Promise<RequestResult> {
return new Promise(async (resolve, reject) => {
try
{
if (!this.isFolder()) {
throw new Error(__("{0} is not a directory", this.path).__());
}
var meta = {
name: d,
parents: [this.info.id],
mimeType: 'application/vnd.google-apps.folder'
};
let r = await this.load(gapi.client.drive.files.create({
resource: meta,
fields: 'id'
}));
if (!r || !r.result) {
throw new Error(__("VFS cannot create : {0}", d).__());
}
G_CACHE[this.child(d)] = { id: r.result.id, mime: "dir" };
resolve(r);
}
catch(e)
{
OS.announcer.oserror(e.toString(), e);
reject(__e(e));
}
});
}
/**
* Low level protocol-specific delete operation
*
* @returns {Promise<RequestResult>}
* @memberof BaseFileHandle
*/
protected _rm(): Promise<RequestResult> {
return new Promise(async (resolve, reject) => {
try{
if (!this.info.id) {
throw new Error(__("Cannot identify file id of {0}", this.path).__());
}
let r = await this.load(gapi.client.drive.files.delete({
fileId: this.info.id
}));
if (!r) {
throw new Error(__("VFS cannot delete : {0}", this.path).__());
}
G_CACHE[this.path] = null;
delete G_CACHE[this.path];
resolve({ result: true, error: false});
}
catch(e)
{
OS.announcer.oserror(e.toString(), e);
reject(__e(e));
}
});
}
/**
* Low level protocol-specific move operation
*
* @protected
* @param {string} d
* @returns {Promise<RequestResult>}
* @memberof BaseFileHandle
*/
protected _mv(d: string): Promise<RequestResult> {
return new Promise(async (resolve, reject) => {
try {
var dest = d.asFileHandle().parent().asFileHandle();
await dest.onready();
const previousParents = this.info.parents.join(',');
let r = await this.load(gapi.client.drive.files.update({
fileId: this.info.id,
addParents: dest.info.id,
removeParents: previousParents,
fields: "id"
}));
if (!r) {
throw new Error(__("VFS cannot move : {0}", this.path).__());
}
resolve(r);
}
catch(e)
{
OS.announcer.oserror(e.toString(), e);
reject(__e(e));
}
});
}
/**
* Low level protocol-specific upload operation
*
* @returns {Promise<RequestResult>}
* @memberof BaseFileHandle
*/
protected _up(): Promise<RequestResult> {
return new Promise(async (resolve, reject) => {
try{
if (!this.isFolder()) {
throw new Error(__("Target file should be a folder").__());
}
var o = ($('<input>')).attr('type', 'file').css("display", "none");
o.on("change", async () => {
//Ant.OS.API.loading q, p
const fo = (o[0] as HTMLInputElement).files[0];
const file = (this.child(fo.name)).asFileHandle();
file.cache = fo;
let ret = await this.load(file.write(fo.type));
return o.remove();
resolve(ret);
});
o.trigger("click");
}
catch(e)
{
OS.announcer.oserror(e.toString(), e);
reject(__e(e));
}
});
}
/**
* Low level protocol-specific download operation
*
* @returns {Promise<any>}
* @memberof BaseFileHandle
*/
protected _down(): Promise<any> {
return new Promise(async (resolve,reject) => {
try {
let r = await this.load(gapi.client.drive.files.get({
fileId: this.info.id,
alt: 'media'
}));
if (!r.body) {
throw new Error(__("VFS cannot download file : {0}", this.path).__());
}
let bs = [];
for (let i = 0, end = r.body.length - 1, asc = 0 <= end; asc ? i <= end : i >= end; asc ? i++ : i--) {
bs.push(r.body.charCodeAt(i));
}
let bytes = new Uint8Array(bs);
const blob = new Blob([bytes], { type: "octet/stream" });
OS.API.saveblob(this.basename, blob);
resolve(true);
}
catch(e)
{
OS.announcer.oserror(e.toString(), e);
reject(__e(e));
}
});
}
}
GoogleDriveHandle.API_META = {
CLIENT_ID: "1006507170703-l322pfkrhf9cgta4l4jh2p8ughtc14id.apps.googleusercontent.com",
API_KEY: "AIzaSyBZhM5KbARvT10acWC8JQKlRn2WbSsmfLc",
apilink: "https://apis.google.com/js/api.js",
DISCOVERY_DOCS: [
"https://www.googleapis.com/discovery/v1/apis/drive/v3/rest",
],
SCOPES: "https://www.googleapis.com/auth/drive",
uploadlink: "https://www.googleapis.com/upload/drive/v3/files/{0}?uploadType=media",
logout: "https://www.google.com/accounts/Logout"
};
register("^gdv$", GoogleDriveHandle);
API.onsearch("Google Drive", function(t) {
const arr = [];
const term = new RegExp(t, "i");
for (let k in G_CACHE) {
const v = G_CACHE[k];
if ((k.match(term)) || (v && v.mime.match(term))) {
const file = k.asFileHandle() as any;
file.text = file.basename;
file.mime = v.mime;
file.iconclass = "fa fa-file";
if (file.mime === "dir") { file.iconclass = "fa fa-folder"; }
file.complex = true;
file.detail = [{ text: file.path }];
arr.push(file);
}
}
return arr;
});
/**
* FIXME: proper way to logout
*/
OS.onexit("cleanUpGoogleDrive", function() {
return new Promise(async (resolve, reject) =>{
try{
await "home://.gdv_cache".asFileHandle().remove();
G_CACHE = { "gdv://": { id: "root", mime: 'dir' } };
if (!Ant.OS.API.libready(Ant.OS.setting.VFS.gdrive.apilink))
{
return resolve(true);
}
const auth2 = gapi.auth2.getAuthInstance();
if (!auth2) {
throw new Error(__("Unable to get OATH instance").__());
}
if (auth2.isSignedIn.get()) {
$('<iframe/>', {
src: GoogleDriveHandle.API_META.logout,
frameborder: 0,
onload() {
//console.log("disconnect")
return auth2.disconnect();
}
//$(this).remove()
});
}
resolve(true);
}
catch(e){
console.log(e);
resolve(true);
}
});
});
}
}
}