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@mkaminsky11
Last active October 20, 2022 12:17
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How to manipulate Google Drive files
/*
Download a file
*/
function downloadFile(fileId) {
var request = gapi.client.drive.files.get({
'fileId': fileId
});
request.execute(function(resp) {
window.location.assign(resp.webContentLink);
});
}
/*
Get contents
*/
function getContentOfFile(theID){ //gets the content of the file
current = theID;
gapi.client.request({'path': '/drive/v2/files/'+theID,'method': 'GET',callback: function ( theResponseJS, theResponseTXT ) {
var myToken = gapi.auth.getToken();
var myXHR = new XMLHttpRequest();
myXHR.open('GET', theResponseJS.downloadUrl, true );
myXHR.setRequestHeader('Authorization', 'Bearer ' + myToken.access_token );
myXHR.onreadystatechange = function( theProgressEvent ) {
if (myXHR.readyState == 4) {
if ( myXHR.status == 200 ) {
var code = myXHR.response;
}
}
}
myXHR.send();
}
});
}
/*
Now to create a new file
*/
function insertNewFile(folderId) {
var content = " ";
var FolderId = "";
var contentArray = new Array(content.length);
for (var i = 0; i < contentArray.length; i++) {
contentArray[i] = content.charCodeAt(i);
}
var byteArray = new Uint8Array(contentArray);
var blob = new Blob([byteArray], {type: 'text/plain'});
insertFile(blob, fileInserted, folderId);
}
function fileInserted(d) {
setPercent("100");
var FI = FolderId;
if(FI !== myRootFolderId){
insertFileIntoFolder(FI, d.id);
removeFileFromFolder(d.parents[0].id,d.id);
}
openFile(d.id);
}
function insertFileIntoFolder(folderId, fileId) {
var body = {'id': folderId};
var request = gapi.client.drive.parents.insert({
'fileId': fileId,
'resource': body
});
request.execute(function(resp) { });
}
function removeFileFromFolder(folderId, fileId) {
var request = gapi.client.drive.parents.delete({
'parentId': folderId,
'fileId': fileId
});
request.execute(function(resp) { });
}
function insertFile(fileData, callback, folderId) {
setPercent("90");
const boundary = '-------314159265358979323846';
const delimiter = "\r\n--" + boundary + "\r\n";
const close_delim = "\r\n--" + boundary + "--";
var reader = new FileReader();
reader.readAsBinaryString(fileData);
reader.onload = function(e) {
var contentType = fileData.type || 'application/octet-stream';
var metadata = {
'title': "untitled.txt",
'mimeType': contentType
};
var base64Data = btoa(reader.result);
var multipartRequestBody =
delimiter +
'Content-Type: application/json\r\n\r\n' +
JSON.stringify(metadata) +
delimiter +
'Content-Type: ' + contentType + '\r\n' +
'Content-Transfer-Encoding: base64\r\n' +
'\r\n' +
base64Data +
close_delim;
var request = gapi.client.request({
'path': '/upload/drive/v2/files',
'method': 'POST',
'params': {'uploadType': 'multipart'},
'headers': {
'Content-Type': 'multipart/mixed; boundary="' + boundary + '"'
},
'body': multipartRequestBody});
if (!callback) {
callback = function(file) {
};
}
request.execute(callback);
}
}
/*
Check the permissions of a file
*/
function getP(fileId) {
var request = gapi.client.drive.permissions.list({
'fileId': fileId
});
request.execute(function(resp) {
console.log(resp.items);
console.log(resp.items.length);
var ret = false;
for(i = 0; i < resp.items.length; i++){
console.log(resp.items[i]);
if(resp.items[i].id === userId || resp.items[i].id === "anyone" || resp.items[i].id === "anyoneWithLink"){
ret = true;
}
}
console.log(ret);
if(ret === false){
//you don't have permission
}
else{
//ok!
}
});
}
/*
Rename a file
*/
function renameFile(fileId, newTitle) {
var body = {'title': newTitle};
var request = gapi.client.drive.files.patch({
'fileId': fileId,
'resource': body
});
request.execute(function(resp) {
console.log('New Title: ' + resp.title);
});
}
/*
How to update a file
*/
function saveFile(fileId, content){
if(typeof content !== "undefined"){
var contentArray = new Array(content.length);
for (var i = 0; i < contentArray.length; i++) {
contentArray[i] = content.charCodeAt(i);
}
var byteArray = new Uint8Array(contentArray);
var blob = new Blob([byteArray], {type: 'text/plain'});
var request = gapi.client.drive.files.get({'fileId': fileId});
request.execute(function(resp) {
updateFile(fileId,resp,blob,changesSaved);
});
}
}
function updateFile(fileId, fileMetadata, fileData, callback) {
if(ok){
const boundary = '-------314159265358979323846';
const delimiter = "\r\n--" + boundary + "\r\n";
const close_delim = "\r\n--" + boundary + "--";
var reader = new FileReader();
reader.readAsBinaryString(fileData);
reader.onload = function(e) {
var contentType = fileData.type || 'application/octet-stream';
var base64Data = btoa(reader.result);
var multipartRequestBody =
delimiter +
'Content-Type: application/json\r\n\r\n' +
JSON.stringify(fileMetadata) +
delimiter +
'Content-Type: ' + contentType + '\r\n' +
'Content-Transfer-Encoding: base64\r\n' +
'\r\n' +
base64Data +
close_delim;
var request = gapi.client.request({
'path': '/upload/drive/v2/files/' + fileId,
'method': 'PUT',
'params': {'uploadType': 'multipart', 'alt': 'json'},
'headers': {
'Content-Type': 'multipart/mixed; boundary="' + boundary + '"'
},
'body': multipartRequestBody});
if (!callback) {
callback = function(file) {
};
}
request.execute(callback);
}
}
}
/*
Get the title of a file
*/
function getTitle(fileId){
var request = gapi.client.drive.files.get({
'fileId': fileId
});
request.execute(function(resp) {
title = resp.title;
if(typeof title === 'undefined' || title === "undefined"){
//error
return false;
}
document.getElementById('renameInput').value = title;
checkFileName(resp.title);
});
}
/*
How to refresh your access token (they expire every hour)
*/
window.setInterval(function(){
refreshToken();
},3000000); //<--this is in milliseconds
function refreshToken() {
gapi.auth.authorize({'client_id': CLIENT_ID, 'scope': SCOPES.join(' '), 'immediate':true},tokenRefreshed);
//you have to get your client id and the proper scopes
window.setInterval(function(){
refreshToken();
},3000000);
}
function tokenRefreshed(result){
}
/*
Get user info
*/
function user() {
var request = gapi.client.drive.about.get();
request.execute(function(resp) {
try{
var myRootFolderId = resp.rootFolderId;
var userName = resp.name;
var userUrl = resp.user.picture.url;
var userId = resp.user.permissionId;
var total_q = resp.quotaBytesTotal;
var user_q = resp.quotaBytesUsedAggregate;
}
catch(e){
//error!
}
});
}
@marianogo
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@SabbaKilam did you answered that question?

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