I've got a Google Apps script I've been working on all week. I have 6 saved versions going back as far as 9/18. I can go to "Manage Versions" and see all of them but I can't restore any of them.
When I got to "See Revision History" it only goes back to 9/21.
One thing to note, the majority of this project is in a .html file, not a .gs file. Is there any hope to get at the code in the previous version?
The only way to get the code out of previous saved versions is with the Apps Script API. The code editor doesn't have a way to load a previous saved version.
See:
https://developers.google.com/apps-script/api/reference/rest/v1/projects/getContent
A version number can be designated. If no version number is designated, then the head version is returned.
You'll need to use UrlFetchApp.fetch(url) if you want to use the Apps Script API from Apps Script.
function getAppsScriptContent() {
var accessTkn,id,options,projectID,response,url;
id = "";//Enter the project id here
url = "https://script.googleapis.com/v1/projects/{scriptId}/content";
url = url.replace("{scriptId}", id);
if (versionNumber) {
url = url + '?versionNumber=' + versionNumber;
}
accessTkn = ScriptApp.getOAuthToken();
options = {};
options.muteHttpExceptions = true;//Make sure this is always set
options.method = "GET";
options.headers = {
'Authorization': 'Bearer ' + accessTkn
}
response = UrlFetchApp.fetch(url,options);
if (!response || response .getResponseCode() !== 200) {
//Your error handling
}
fileContent = response.getContentText();
try{
fileContent = JSON.parse(fileContent);
files = fileContent.files;
}catch(e){
//Error handling
}
}
Related
I am using the v3 .Net Google Apis. This seems like it should be a simple task, but nothing I have tried seems to work.
I am able to get the file resource for the file I want by doing this -
var fileRequest = service.Files.Get(fileId);
fileRequest.Fields = "*";
var fileResponse = fileRequest.Execute();
But then I have not been able to actually find a way to download the file. If I use this -
var exportRequest = service.Files.Export(fileResponse.Id, fileResponse.MimeType);
exportRequest.Download(stream);
It returns a 403 Forbidden status with a message stating that Export is only for Google docs.
I've tried this -
var downloadTask = exportRequest.MediaDownloader.DownloadAsync(#"https://docs.google.com/uc?export=download&id=" + fileResponse.Id, file);
downloadTask.Wait();
But that just returns the markup for the page for the user to login. I created the export request using a service account so login should not be required.
Any have a sample of doing this in .Net using the V3 google API?
Ok, I literally got this to work 5 minutes after posting this. Here is what I found works (I know I tried this before and it did not work, but who knows) -
public static async Task DownloadFile(string fileId, DriveService service)
{
var fileRequest = service.Files.Get(fileId);
fileRequest.Fields = "*";
var fileResponse = fileRequest.Execute();
var exportRequest = service.Files.Get(fileResponse.Id);
//you would need to know the file size
var size = fileResponse.Size;
var file = new FileStream(fileResponse.Name, FileMode.OpenOrCreate, FileAccess.ReadWrite);
file.SetLength((long)size);
var response = await fileRequest.DownloadAsync(file);
if (response.Status == Google.Apis.Download.DownloadStatus.Failed)
{
Console.WriteLine("Download failed");
}
}
I'm trying to write a Google Apps Script to download all files in a particular Drive folder (likely .csv files). I have found the getDownloadUrl() method but I haven't been able to figure out what to do with it. I'm currently trying the following code, where files is the list of the files in the folder:
while(files.hasNext()) {
var response = UrlFetchApp.fetch(files.next().getDownloadUrl());
Logger.log(response.getContentText());
}
When I try to run the code, however, I get a 401 error which I guess means I lack the proper authorization? But I was under the impression that I wouldn't need to go through all of the OAuth2 steps if everything was taking place within my one Google account. The Google guide to connecting to external APIs makes it look like I should be able to just fetch the url. I've already gotten access to my Drive files, because the download URL does exist when I run that method. What am I missing here? I'm really new to all of this so maybe it's something basic.
Thanks!
EDIT:
I managed to fix the 401 error by modifying the code as follows:
while(files.hasNext()) {
var response = UrlFetchApp.fetch(files.next().getDownloadUrl(),{headers: {Authorization: "Bearer " + ScriptApp.getOAuthToken()}});
Logger.log(response.getContentText());
}
But the issue remains that this only returns the contents to me, rather than downloading the file. How can I initiate a download from the results of this fetch call?
Besides listing all download links, I guess original poster also wants to download files to user's computer (according to earlier discussion).
To do this, encode blob with base 64 in server side (e.g. Google App Script) and download with data URI in client's browser. Below are code for this, with help of this answer.
Google App Script
...
function getBlobInBase64(fileId){
// omit authorization code if any
var file = DriveApp.getFileById(fileId);
var blob = file .getBlob();
return {
file_name: file.getName(),
mime: file.getMimeType(),
b64: Utilities.base64Encode(blob.getBytes());
}
...
Javascript that serve with index.html
...
function getFile(fileId){
google.script.run.withSuccessHandler((data) => {
var uri = 'data:' + data.mime + ';charset=ISO-8859-1;base64,' + encodeURIComponent(data.b64);
downloadURI(uri, data.file_name);
}).withFailureHandler((err) => {
console.log(err);
}).getBlobInBase64();
}
...
NOTE: I haven't run this code but the method should work as used in my other project.
This will log the file names & URLS for any files available for downloading (first 100 in root drive):
function myFunction() {
var files = DriveApp.getFiles();
var c = 0;
while (files.hasNext() && c<100) {
var file = files.next();
Logger.log("File Name: " + file.getName());
Logger.log(" Download URL: " + file.getDownloadUrl());
c++;
}
}
My answer might be a bit off but I think you have a better chance downloading files from Google Drive using the webContentLink as it is the method I commonly use. I obtain webContentLink by using Files.list and ask for webContentLink in the fields parameter. I run that link through the browser and it downloads the file.
If you are trying to download Google Drive files to local computer using Google Apps Script, Then please understand that Google Apps Script is a server side scripting language. It can't download and save files to your local drive.
Here is a webapp that may be helpful for you. It does not do exactly what you are looking for but you may be able to edit it and get a result. Hope it helps!
CODE:
function doGet(e) { // main function
var template = HtmlService.createTemplateFromFile('index.html'); // filename always!
return template.evaluate().setTitle('Search Drive').setSandboxMode(HtmlService.SandboxMode.IFRAME);
}
// Process the form
function processForm(searchTerm) {
var resultToReturn;
Logger.log('processForm was called! ' + searchTerm);
resultToReturn = SearchFiles(searchTerm); // Call to the search files function to search files on google drive
Logger.log('resultToReturn: ' + resultToReturn);
return resultToReturn; // return the results
}
function SearchFiles(searchTerm) {
var searchFor ="title contains '" + searchTerm + "'"; //single quotes are needed around searchterm
var owneris ="and 'YOUREmail#email.com' in Owners"; //email address to search for
var names = [];
Logger.log(searchFor + " " + owneris);
var files = DriveApp.searchFiles(searchFor + " " + owneris);
while (files.hasNext()) {
var file = files.next();
var fileId = file.getId();// To get FileId of the file
var lm = file.getLastUpdated();
var name = file.getName()+"|~|"+fileId+"|~|"+lm; // Im concatenating the filename with file id separated by |~|
names.push(name); // adding to the array
}
return names; // return results
}
INDEX.html
<html>
<head>
<base target="_top">
<script>
function displayMessage() {
var searchTerm;
searchTerm = document.getElementById('idSrchTerm').value;
console.log('searchTerm: ' + searchTerm );
// Below call means: call to processForm passing the searchTerm value (previously escaped) and after finish call the handleResults function
google.script.run.withSuccessHandler(handleResults).processForm(searchTerm.replace("'","\'"));
}
function handleResults(results){
console.log('Handle Results was called! ');
document.writeln('BACK<br/><br/>');
var length=results.length; // total elements of results
for(var i=0;i<length;i++)
{
var item=results[i];
item=item.split("|~|"); // split the line |~|, position 0 has the filename and 1 the file id
document.writeln("<b><a href='https://docs.google.com/document/d/"+item[1]+"' target='_blank'>"+item[0]+"</b></a> (Last modified: "+item[2]+")<br/><br/>"); // write result
}
document.writeln("End of results...");
}
</script>
</head>
<body><center><br/>
Search: <input type="text" id="idSrchTerm" name="search">
<input type="button" value="search files on Google Drive" name="submitButton" onclick="displayMessage()"/>
</center>
</body>
</html>
I create and send a periodic email as an update from a Google Sheet. For various client reasons this is done 3 ways, as a link to the Sheet, and as attachments (PDF and XLSX).
This was working 'til recently. The XSLX attachment still works, but the PDF is no longer sent as a response to a UrlFetch to the file.exportLinks('application/pdf') url. No matter what the request headers it always returns as Content-Type: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
Did something else undocumented change that I am missing here?
function exportAsPDF(spreadsheetId) {
spreadsheetId = spreadsheetId || 'SECRET_ID';
var file = Drive.Files.get(spreadsheetId),
url = file.exportLinks['application/pdf'];
url += '&format=pdf&size=7&fzr=true&portrait=true&fitw=true&gid=0&gridlines=false&printtitle=false&sheetnames=false&pagenum=UNDEFINED&attachment=true'
var token = ScriptApp.getOAuthToken(),
response = UrlFetchApp.fetch(url, {
headers: {
'Authorization': 'Bearer ' + token
}
});
var headers = response.getAllHeaders(); // revealing content-type returned isn't pdf
var pdfBlob = response.getBlob().getAs('application/pdf');
var pdfString = pdfBlob.getDataAsString(); // this naturally throws an error
return response.getBlob(); // this returns to the send mail script
}
I'm able to get PDFs using the utility from Convert all sheets to PDF with Google Apps Script.
That working script modifies the spreadsheet's edit URL into an export URL, which looks like:
https://docs.google.com/spreadsheets/d/<%SS-ID%>/export?exportFormat=pdf...
The advanced Drive service gives an export URL formatted like:
https://docs.google.com/spreadsheets/export?id=<%SS-ID%>&exportFormat=pdf...
I'd expect the URL provided by exportLinks to be more reliable than the hack in the working script. Apparently, it's not.
This has been raised as Issue 5114. Star it to receive updates.
I have a fairly basic spreadsheet that uses some Google Scripts to accomplish various tasks. I was trying to cleanup the interface for the end user, and decided to implement the Google Picker. Originally the user had to manually import a CSV into the spreadsheet. The new goal here is to select the CSV via the Google Picker, upload it, import it, then delete it. I already have all the code working to import it and delete it. I just worked up the code for the picker, and it seems to work fine. However, and I think I'm just missing something small, how do I pass the File ID back from the Picker.html to my Google Scripts in order to continue my process?
If it helps, I'm using the basic callback provided in the Google documentation right now. I'm assuming this is where the change will be made. Just not sure what to do.
function pickerCallback(data) {
var action = data[google.picker.Response.ACTION];
if (action == google.picker.Action.PICKED) {
var doc = data[google.picker.Response.DOCUMENTS][0];
var id = doc[google.picker.Document.ID];
var url = doc[google.picker.Document.URL];
var title = doc[google.picker.Document.NAME];
document.getElementById('result').innerHTML =
'<b>You chose:</b><br>Name: ' + title + '<br>ID: ' + id;
} else if (action == google.picker.Action.CANCEL) {
document.getElementById('result').innerHTML = 'Picker canceled.';
}
}
This should probably work:
In your pickerCallback(data) function:
if (data.action == google.picker.Action.PICKED) {
var fileId = data.docs[0].id;
google.script.run
.withSuccessHandler(useData) // this will call the google apps script function in your Code.gs file
.doSomething(fileId); // this is a function in your JavaScript section where you will do something with the code you got from your apps script function
}
function useData(data) {
// do something with the data
}
In Code.gs, create a function to handle the input from the picker:
function doSomething(fileId) {
// do an operation in Drive with the fileId
var file = DriveApp.getFileById(fileId);
var fileName = file.getName();
return fileName;
}
First of all, open the chrome developer console when you are running this so you can see any errors that happen client side (when the picker is active). You can also use console.log to report any variable values in the Chrome console.
secondly, the call to the server works asynchronously, so it means that in your code, you'll get your message 'script was run', when it fact it hasn't yet. All that's happened is that google.script.run has asked for your server side function to execute.
That's why you have withSuccessHandler and withFailureHandler.
so you should do
google.script.run
.withSuccessHandler (function (response) {
document.getElementById('result').innerHTML = 'it worked'
})
.withFailureHandler (function (err) {
document.getElementById('result').innerHTML = err;
})
.justatest (fileId);
and back in the server script
function justatest(fileId) {
Logger.log (fileId);
}
If you then go back and look in the script log file, you should see the fileId.
I had a wild idea that I could build a website blog for an unsophisticated user friend using Google Drive Documents to back it. I was able to create a contentService that compiles a list of documents. However, I can't see a way to convert the document to HTML. I know that Google can render documents in a web page, so I wondered if it was possible to get a rendered version for use in my content service.
Is this possible?
You can try this code :
function getGoogleDocumentAsHTML(){
var id = DocumentApp.getActiveDocument().getId() ;
var forDriveScope = DriveApp.getStorageUsed(); //needed to get Drive Scope requested
var url = "https://docs.google.com/feeds/download/documents/export/Export?id="+id+"&exportFormat=html";
var param = {
method : "get",
headers : {"Authorization": "Bearer " + ScriptApp.getOAuthToken()},
muteHttpExceptions:true,
};
var html = UrlFetchApp.fetch(url,param).getContentText();
Logger.log(html);
}
Node.js Solution
Using the Google APIs Node.js Client
Here's how you can get a google doc as html using google drive's node.js client library.
// import googleapis npm package
var google = require('googleapis');
// variables
var fileId = '<google drive doc file id>',
accessToken = '<oauth access token>';
// oauth setup
var OAuth2 = google.auth.OAuth2,
OAuth2Client = new OAuth2();
// set oauth credentials
OAuth2Client.setCredentials({access_token: accessToken});
// google drive setup
var drive = google.drive({version: 'v3', auth: OAuth2Client});
// download file as text/html
var buffers = [];
drive.files.export(
{
fileId: fileId,
mimeType: 'text/html'
}
)
.on('error', function(err) {
// handle error
})
.on('data', function(data) {
buffers.push(data); // data is a buffer
})
.on('end', function() {
var buffer = Buffer.concat(buffers),
googleDocAsHtml = buffer.toString();
console.log(googleDocAsHtml);
});
Take a look at the Google Drive V3 download docs for more languages and options.
Google docs currently has a function to do this.
Just download to zip(.html) and you can have a zip archive with html & image (if inserted)
I know this is not solution based on code, but its working :)
There is no direct method in GAS to get an HTML version of a doc and this is quite an old enhancement request but the workaround described originally by Henrique Abreu works pretty well, I use it all the time...
The only annoying thing in the authorization process that needs to be called from the script editor which makes it uneasy to use in a shared application (with "script unable" users) but this only happens once ;).
There is also a Library created by Romain Vialard that makes things (a bit) easier... and adds a few other interesting functions.
Here is a little snipped for the new version of goole AOuth following the idea posted by Enrique:
function exportAsHTML(){
var forDriveScope = DriveApp.getStorageUsed(); //needed to get Drive Scope requested
var docID = DocumentApp.getActiveDocument().getId();
var url = "https://docs.google.com/feeds/download/documents/export/Export?id="+docID+"&exportFormat=html";
var param = {
method : "get",
headers : {"Authorization": "Bearer " + ScriptApp.getOAuthToken()},
muteHttpExceptions:true,
};
var html = UrlFetchApp.fetch(url,param).getContentText();
return html;
}
and then use the usual mailApp:
function mailer(){
var docbody = exportAsHTML();
MailApp.sendEmail({
to: "email#mail.com",
subject: "document emailer",
htmlBody: docbody });
}
Hope the new workaround helps
JD
You may use the solution here
/**
* Converts a file to HTML. The Advanced Drive service must be enabled to use
* this function.
*/
function convertToHtml(fileId) {
var file = Drive.Files.get(fileId);
var htmlExportLink = file.exportLinks['text/html'];
if (!htmlExportLink) {
throw 'File cannot be converted to HTML.';
}
var oAuthToken = ScriptApp.getOAuthToken();
var response = UrlFetchApp.fetch(htmlExportLink, {
headers:{
'Authorization': 'Bearer ' + oAuthToken
},
muteHttpExceptions: true
});
if (!response.getResponseCode() == 200) {
throw 'Error converting to HTML: ' + response.getContentText();
}
return response.getContentText();
}
Pass as fileId, the id of the google doc and to enable advanced drive services follow the instructions here.
I've had this problem as well. The HTML that the Document HTML Export spits out is really ugly, so this was my solution:
/**
* Takes in a Google Doc ID, gets that doc in HTML format, cleans up the markup, and returns the resulting HTML string.
*
* #param {string} the id of the google doc
* #param {boolean} [useCaching] enable or disable caching. default true.
* #return {string} the doc's body in html format
*/
function getContent(id, useCaching) {
if (!id) {
throw "Please call this API with a valid Google Doc ID";
}
if (useCaching == null) {
useCaching = true;
}
if (typeof useCaching != "boolean") {
throw "If you're going to specify useCaching, it must be boolean.";
}
var cache = CacheService.getScriptCache();
var cached = cache.get(id); // see if we have a cached version of our parsed html
if (cached && useCaching) {
var html = cached;
Logger.log("Pulling doc html from cache...");
} else {
Logger.log("Grabbing and parsing fresh html from the doc...");
try {
var doc = DriveApp.getFileById(id);
} catch (err) {
throw "Please call this API with a valid Google Doc ID. " + err.message;
}
var docName = doc.getName();
var forDriveScope = DriveApp.getStorageUsed(); // needed to get Drive Scope requested in ScriptApp.getOAuthToken();
var url = "https://docs.google.com/feeds/download/documents/export/Export?id=" + id + "&exportFormat=html";
var param = {
method: "get",
headers: {"Authorization": "Bearer " + ScriptApp.getOAuthToken()},
muteHttpExceptions:true,
};
var html = UrlFetchApp.fetch(url, param).getContentText();
// nuke the whole head section, including the stylesheet and meta tag
html = html.replace(/<head>.*<\/head>/, '');
// remove almost all html attributes
html = html.replace(/ (id|class|style|start|colspan|rowspan)="[^"]*"/g, '');
// remove all of the spans, as well as the outer html and body
html = html.replace(/<(span|\/span|body|\/body|html|\/html)>/g, '');
// clearly the superior way of denoting line breaks
html = html.replace(/<br>/g, '<br />');
cache.put(id, html, 900) // cache doc contents for 15 minutes, in case we get a lot of requests
}
Logger.log(html);
return html;
}
https://gist.github.com/leoherzog/cc229d14a89e6327336177bb07ac2980
Perhaps this would work for you...
function doGet() {
var blob = DriveApp.getFileById('myFileId').getAsHTML();
return HtmlService.createHtmlOutput(blob);
}