What are the possible choices for corpora and what do they mean?
I want to get a list of all the files I have access too inside a directory, Using .files().list( ... )
https://developers.google.com/drive/v2/reference/files/list
I used to run the following code which worked:
SearchParameterString = "'" + FolderId + "' in parents"
#NOTE there is a return limit of 460 files (falsly documented as 1000)
DriveFileItems = []
PageToken = None
while True:
try:
DriveFilesObject = Service.files().list(
q = SearchParameterString,
#corpora = 'domain', #'default',#SearchOwners,
corpus = 'DOMAIN', #----> DEPRICATED!!!
maxResults = 200,
pageToken = PageToken,
).execute()
DriveFileItems.extend(DriveFilesObject['items'])
PageToken = DriveFilesObject.get('nextPageToken')
if not PageToken:
break
except errors.HttpError, error:
print 'An error occurred: %s' % error
break
And the above code broke for me on June 25. With the following error message:
https://www.googleapis.com/drive/v2/files?q=%27___myFolderIdHere___%27+in+parents&alt=json&corpus=DOMAIN&maxResults=200 returned "Invalid query">
And I figured out that it was because they deprecated parameter corpus in favor of corpora
What are the possible choices for google drive api corpora ?
And what do they mean?
corpora = 'domain', #DOES NOT WORK
How do I make sure I am getting the full list of files, instead of just the files I own? (previously I had to switch from DEFAULT to DOMAIN because I had all sorts of problems from not getting full file lists, and ended up uploading many many duplicates while trying to use drive api to sync directories across machines)
I found this:
https://github.com/google/google-api-go-client/issues/218
and this:
https://godoc.org/golang.org/x/oauth2/jwt#Config
but don't really know what it means to impersonate a user, nor do I really think I want to do so.
EDIT: I happen to be using python - but the question is language agnostic
In case you are using Google Drive Java API, then most portably you are missing one of following arguments:
drive_id
include_items_from_all_drives=true
supports_all_drives=true
corpora=drive
Specifying those arguments is especially important in case you want to find files only from one shared drive.
private void readFiles(Drive drive) {
FileList result;
try {
result = drive.files().list()
.setQ("'" + DOCUMENTS_FOLDER_ID + "' in parents")
.setDriveId(P10_DRIVE_ID)
.setIncludeItemsFromAllDrives(true)
.setSupportsAllDrives(true)
.setCorpora("drive")
.setPageSize(100)
.setFields("nextPageToken,files(id, name, webViewLink)")
.execute();
List<File> files = result.getFiles();
if (files == null || files.isEmpty()) {
System.out.println("No files found.");
} else {
System.out.println("Files:");
for (File file : files) {
System.out.printf("%s (%s) (%s)\n", file.getName(), file.getId(), file.getWebViewLink());
}
}
} catch (IOException e) {
e.printStackTrace();
}
}
I think you can see that in the Migrate from Drive v2, the only options are:
Method Parameter Alternative
files.list corpus=DEFAULT corpus=user
files.list corpus=DOMAIN corpus=domain
Using drive api v2:
corpora = 'domain' doesn't work at all...
corpus = 'DOMAIN' doesn't work at all...
corpora = 'default' seems to do the trick.
corpora = 'default' works now the same way corpus = 'DOMAIN' worked before.
Files created by other users are not omitted (as I desire). Google changed this functionality without announcing it, and it broke out of nowhere for me on June 25, 2017.
I want to know how to add a local file path as a link and after adding it i want to download the file while clicking the link in asp.net.
My code:
<a href="D:/Sample/test.html" runat="server">
Here i just add my local path to the server.But here nothing done while clicking the link. I want to use .zip file instead of .html file.Let me know how to upload and download by using a link.Thanks in advance
I fail to see the problem here. Just add "~/" to find file from the root of your project and add runat="server" to the anchor link:
Download Zip File
You need to resolve it from the root because while you may know that it's on the D drive on your local machine, you cannot be sure that will be the same on the server. And even if it is on the same drive on the server, what if someone migrates it later on?
As for uploading a file, simply use the Upload control?
There are lots of situation, Using this code you can do it.
File Upload Code
string FilePath = "";
string[] a = new string[1];
string fileName = "";
string FullName = "";
if (FileUploader.FileName.Length > 0)
{
a = FileUploader.FileName.Split('.');
fileName = Convert.ToString(System.DateTime.Now.Ticks) + "." + a.GetValue(1).ToString();
FilePath = Server.MapPath(#"~\SavedFolder");
Fup1.SaveAs(FilePath + #"\" + fileName);
FullName = FilePath + #"\" + fileName;
// Database Saved Code
}
File Download Code
string filename = "filename from Database";
Response.ContentType = "application/octet-stream";
Response.AppendHeader("Content-Disposition", "attachment;filename=" + filename);
string aaa = Server.MapPath("~/SavedFolder/" + filename);
Response.TransmitFile(Server.MapPath("~/SavedFolder/" + filename));
Response.End();
The exception thrown was " at WebSupergoo.ABCpdf10.Doc.Save(String path)
at GetHtmlFromUploadedPdfDocument(Nullable`1 pageNumber) in....." .
The uploaded pdffile contains barcodes and fillable fext fields .
Below is the code i used to convert pdf to html.
var filePaths= HttpContext.Current.Server.MapPath("~/PDF//");
byte[] bytes = File.ReadAllBytes(filePaths);
doc.Read(bytes);
if (pageNumber > 0)
{
doc.PageNumber = pageNumber.Value;
doc.RemapPages(pageNumber.ToString());
}
var pdfFile = "sample";
var htmlPath = HttpContext.Current.Server.MapPath("~/HTML/" + pdfFile + ".html");
doc.Encryption.CanChange = false;
doc.Encryption.CanEdit = false;
doc.Encryption.CanAssemble = false;
doc.Encryption.CanExtract = false;
doc.Encryption.CanFillForms = false;
doc.Save(htmlPath);
content = File.ReadAllText(htmlPath);
I know this is old post. But i faced similar issue.
I solved it eventually, it might help others.
In my case, folder under which I was saving the file was missing proper permission.
Please perform following task:
Right click on root folder where you are trying to save file.
Select Properties. Uncheck Read-only in attributes section.
Go to Security Tab. Select Edit > Add.
Key in "Everyone" in text box. Then Check Names > Ok.
Give "Everyone" Read, Write and Modify permission.
I have previously successfully managed to upload a file using the webimage helper, but i am now trying to combine that with creating a directory, and failing miserably. here is my code:
if(IsPost){
//Create Directory using PropertyID
var imageroot = Server.MapPath("~/Images/Property/");
var foldername = rPropertyId.ToString();
var path = Path.Combine(imageroot, foldername);
if(!Directory.Exists(path)){
Directory.CreateDirectory(path);
}
photo = WebImage.GetImageFromRequest();
if(photo != null){
MediumFileName = rPropertyId + "_" + gooid + "_" + "Medium";
imagePath = path + MediumFileName;
photo.Save(#"~\" + imagePath);}
}
First, i create a directory with the name of the propertyID. This works fine. I then try and upload new photo's into that path, and i get an error saying that "The given path's format is not supported".
Any ideas?
You correctly use Path.Combine() when creating the directory path, you should do the same when making the image path.
imagePath = Path.Combine(path, MediumFileName);
Other than that, the error message suggests that perhaps it is the omission of a file extension that is causing issues? Perhaps use Path.GetFileName(photo.FileName) or similar and use that as the end of your constructed pathname.
I'm attempting to create a PDF file from an HTML file. After looking around a little I've found: wkhtmltopdf to be perfect. I need to call this .exe from the ASP.NET server. I've attempted:
Process p = new Process();
p.StartInfo.UseShellExecute = false;
p.StartInfo.FileName = HttpContext.Current.Server.MapPath("wkhtmltopdf.exe");
p.StartInfo.Arguments = "TestPDF.htm TestPDF.pdf";
p.Start();
p.WaitForExit();
With no success of any files being created on the server. Can anyone give me a pointer in the right direction? I put the wkhtmltopdf.exe file at the top level directory of the site. Is there anywhere else it should be held?
Edit: If anyone has better solutions to dynamically create pdf files from html, please let me know.
Update:
My answer below, creates the pdf file on the disk. I then streamed that file to the users browser as a download. Consider using something like Hath's answer below to get wkhtml2pdf to output to a stream instead and then send that directly to the user - that will bypass lots of issues with file permissions etc.
My original answer:
Make sure you've specified an output path for the PDF that is writeable by the ASP.NET process of IIS running on your server (usually NETWORK_SERVICE I think).
Mine looks like this (and it works):
/// <summary>
/// Convert Html page at a given URL to a PDF file using open-source tool wkhtml2pdf
/// </summary>
/// <param name="Url"></param>
/// <param name="outputFilename"></param>
/// <returns></returns>
public static bool HtmlToPdf(string Url, string outputFilename)
{
// assemble destination PDF file name
string filename = ConfigurationManager.AppSettings["ExportFilePath"] + "\\" + outputFilename + ".pdf";
// get proj no for header
Project project = new Project(int.Parse(outputFilename));
var p = new System.Diagnostics.Process();
p.StartInfo.FileName = ConfigurationManager.AppSettings["HtmlToPdfExePath"];
string switches = "--print-media-type ";
switches += "--margin-top 4mm --margin-bottom 4mm --margin-right 0mm --margin-left 0mm ";
switches += "--page-size A4 ";
switches += "--no-background ";
switches += "--redirect-delay 100";
p.StartInfo.Arguments = switches + " " + Url + " " + filename;
p.StartInfo.UseShellExecute = false; // needs to be false in order to redirect output
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.RedirectStandardInput = true; // redirect all 3, as it should be all 3 or none
p.StartInfo.WorkingDirectory = StripFilenameFromFullPath(p.StartInfo.FileName);
p.Start();
// read the output here...
string output = p.StandardOutput.ReadToEnd();
// ...then wait n milliseconds for exit (as after exit, it can't read the output)
p.WaitForExit(60000);
// read the exit code, close process
int returnCode = p.ExitCode;
p.Close();
// if 0 or 2, it worked (not sure about other values, I want a better way to confirm this)
return (returnCode == 0 || returnCode == 2);
}
I had the same problem when i tried using msmq with a windows service but it was very slow for some reason. (the process part).
This is what finally worked:
private void DoDownload()
{
var url = Request.Url.GetLeftPart(UriPartial.Authority) + "/CPCDownload.aspx?IsPDF=False?UserID=" + this.CurrentUser.UserID.ToString();
var file = WKHtmlToPdf(url);
if (file != null)
{
Response.ContentType = "Application/pdf";
Response.BinaryWrite(file);
Response.End();
}
}
public byte[] WKHtmlToPdf(string url)
{
var fileName = " - ";
var wkhtmlDir = "C:\\Program Files\\wkhtmltopdf\\";
var wkhtml = "C:\\Program Files\\wkhtmltopdf\\wkhtmltopdf.exe";
var p = new Process();
p.StartInfo.CreateNoWindow = true;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.RedirectStandardInput = true;
p.StartInfo.UseShellExecute = false;
p.StartInfo.FileName = wkhtml;
p.StartInfo.WorkingDirectory = wkhtmlDir;
string switches = "";
switches += "--print-media-type ";
switches += "--margin-top 10mm --margin-bottom 10mm --margin-right 10mm --margin-left 10mm ";
switches += "--page-size Letter ";
p.StartInfo.Arguments = switches + " " + url + " " + fileName;
p.Start();
//read output
byte[] buffer = new byte[32768];
byte[] file;
using(var ms = new MemoryStream())
{
while(true)
{
int read = p.StandardOutput.BaseStream.Read(buffer, 0,buffer.Length);
if(read <=0)
{
break;
}
ms.Write(buffer, 0, read);
}
file = ms.ToArray();
}
// wait or exit
p.WaitForExit(60000);
// read the exit code, close process
int returnCode = p.ExitCode;
p.Close();
return returnCode == 0 ? file : null;
}
Thanks Graham Ambrose and everyone else.
OK, so this is an old question, but an excellent one. And since I did not find a good answer, I made my own :) Also, I've posted this super simple project to GitHub.
Here is some sample code:
var pdfData = HtmlToXConverter.ConvertToPdf("<h1>SOO COOL!</h1>");
Here are some key points:
No P/Invoke
No creating of a new process
No file-system (all in RAM)
Native .NET DLL with intellisense, etc.
Ability to generate a PDF or PNG (HtmlToXConverter.ConvertToPng)
Check out the C# wrapper library (using P/Invoke) for the wkhtmltopdf library: https://github.com/pruiz/WkHtmlToXSharp
There are many reason why this is generally a bad idea. How are you going to control the executables that get spawned off but end up living on in memory if there is a crash? What about denial-of-service attacks, or if something malicious gets into TestPDF.htm?
My understanding is that the ASP.NET user account will not have the rights to logon locally. It also needs to have the correct file permissions to access the executable and to write to the file system. You need to edit the local security policy and let the ASP.NET user account (maybe ASPNET) logon locally (it may be in the deny list by default). Then you need to edit the permissions on the NTFS filesystem for the other files. If you are in a shared hosting environment it may be impossible to apply the configuration you need.
The best way to use an external executable like this is to queue jobs from the ASP.NET code and have some sort of service monitor the queue. If you do this you will protect yourself from all sorts of bad things happening. The maintenance issues with changing the user account are not worth the effort in my opinion, and whilst setting up a service or scheduled job is a pain, its just a better design. The ASP.NET page should poll a result queue for the output and you can present the user with a wait page. This is acceptable in most cases.
You can tell wkhtmltopdf to send it's output to sout by specifying "-" as the output file.
You can then read the output from the process into the response stream and avoid the permissions issues with writing to the file system.
My take on this with 2018 stuff.
I am using async. I am streaming to and from wkhtmltopdf. I created a new StreamWriter because wkhtmltopdf is expecting utf-8 by default but it is set to something else when the process starts.
I didn't include a lot of arguments since those varies from user to user. You can add what you need using additionalArgs.
I removed p.WaitForExit(...) since I wasn't handling if it fails and it would hang anyway on await tStandardOutput. If timeout is needed, then you would have to call Wait(...) on the different tasks with a cancellationtoken or timeout and handle accordingly.
public async Task<byte[]> GeneratePdf(string html, string additionalArgs)
{
ProcessStartInfo psi = new ProcessStartInfo
{
FileName = #"C:\Program Files\wkhtmltopdf\wkhtmltopdf.exe",
UseShellExecute = false,
CreateNoWindow = true,
RedirectStandardInput = true,
RedirectStandardOutput = true,
RedirectStandardError = true,
Arguments = "-q -n " + additionalArgs + " - -";
};
using (var p = Process.Start(psi))
using (var pdfSream = new MemoryStream())
using (var utf8Writer = new StreamWriter(p.StandardInput.BaseStream,
Encoding.UTF8))
{
await utf8Writer.WriteAsync(html);
utf8Writer.Close();
var tStdOut = p.StandardOutput.BaseStream.CopyToAsync(pdfSream);
var tStdError = p.StandardError.ReadToEndAsync();
await tStandardOutput;
string errors = await tStandardError;
if (!string.IsNullOrEmpty(errors)) { /* deal/log with errors */ }
return pdfSream.ToArray();
}
}
Things I haven't included in there but could be useful if you have images, css or other stuff that wkhtmltopdf will have to load when rendering the html page:
you can pass the authentication cookie using --cookie
in the header of the html page, you can set the base tag with href pointing to the server and wkhtmltopdf will use that if need be
Thanks for the question / answer / all the comments above. I came upon this when I was writing my own C# wrapper for WKHTMLtoPDF and it answered a couple of the problems I had. I ended up writing about this in a blog post - which also contains my wrapper (you'll no doubt see the "inspiration" from the entries above seeping into my code...)
Making PDFs from HTML in C# using WKHTMLtoPDF
Thanks again guys!
The ASP .Net process probably doesn't have write access to the directory.
Try telling it to write to %TEMP%, and see if it works.
Also, make your ASP .Net page echo the process's stdout and stderr, and check for error messages.
Generally return code =0 is coming if the pdf file is created properly and correctly.If it's not created then the value is in -ve range.
using System;
using System.Diagnostics;
using System.Web;
public partial class pdftest : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
private void fn_test()
{
try
{
string url = HttpContext.Current.Request.Url.AbsoluteUri;
Response.Write(url);
ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.FileName =
#"C:\PROGRA~1\WKHTML~1\wkhtmltopdf.exe";//"wkhtmltopdf.exe";
startInfo.Arguments = url + #" C:\test"
+ Guid.NewGuid().ToString() + ".pdf";
Process.Start(startInfo);
}
catch (Exception ex)
{
string xx = ex.Message.ToString();
Response.Write("<br>" + xx);
}
}
protected void btn_test_Click(object sender, EventArgs e)
{
fn_test();
}
}