I trying to save a PDF file, previously obtained from a REST WS as byte[] array.
byte[] response = await caller.DownloadFile(url);
string documentPath = FileSystem.CacheDirectory;
string fileName = "downloadfile.pdf";
string path = Path.Combine(documentPath, fileName);
File.WriteAllBytes(path, response);
My actual implementation don't shows any errors but when I looking for the file on cache folder, nothing are there, just a empty folder. Also try put the file in FileSystem.AppDataDirectory and Environment.GetFolderPath(Environment.SpecialFolder.Personal) but there are no files in any folder
What I'm missing?
Thank's in advance.
string documentPath = FileSystem.CacheDirectory;
string fileName = "downloadfile.pdf";
string path = Path.Combine(documentPath, fileName);
the path will like
"/data/user/0/packagename/cache/downloadfile.pdf"
As you save it to Internal Storage,you couldn't see the files without root permission,if you want to view it,you could use adb tool (application signed by Android Debug)
adb shell
run-as packagename
cd /data/data/packagename
cd cache
ls
then you could see the downloadfile.pdf
or you could save it to External storage,then you could find it in your device File Manager:
//"/storage/emulated/0/Android/data/packagename/files/downloadfile.pdf"
string path = Android.App.Application.Context.GetExternalFilesDir(null).ToString();
The code for setting filename for the file to be downloaded :
String originalFileNameDecoded = URLDecoder.decode(originalFileName, "UTF-8");
URI uri = new URI(null, null, originalFileNameDecoded, null);
return ResponseEntity.ok()
.header("Content-Disposition", "attachment; filename=\"" + uri.toASCIIString() + "\"")
.contentLength(resource.contentLength())
.contentType(org.springframework.http.MediaType.APPLICATION_OCTET_STREAM)
.body(resource);
The reason why first decode the filename is because the originalFileName may contains URL encoded characters.
For files with regular names (only number and English letter), it works fine. However, when I try to download a file with name like pic201;9050.814,3"731(copy).png in the browser (chrome on linux), the filename becomes pic201;9050.814,3_731(copy).png.
I used to believe it is the browser behaviour, but I tried it in Edge and the same situation happened again.
So I wonder if there is something wrong with my code or something else happened.
I have an endpoint that downloads an xlsx file. In my test, I need to check the content of the file (not comparing the file with another file, but reading the content and checking). I am using karate framework for testing and I am trying to use apache POI for working with the excel sheet. However, the response I get from karate when calling the download endpoint is a String. For creating an excel file with POI I need an InputStream or the path to the actual file. I have tried the conversion, but it does not work.
I guess I am missing some connection here, or maybe the conversion is bad, I am new to karate and to the whole thing.
I appreciate any help, thanks!
Given url baseUrl
Given path downloadURI
When method GET
Then status 200
And match header Content-disposition contains 'attachment'
And match header Content-disposition contains 'example.xlsx'
And match header Content-Type == 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
* def value= FileChecker.createExcelFile(response)
* print value
And the Java code:
public static String createExcelFile(String excel) throws IOException, InvalidFormatException {
InputStream stream = IOUtils.toInputStream(excel, Charset.forName("UTF-8"));
Workbook workbook = WorkbookFactory.create(stream);
return ("Workbook has " + workbook.getNumberOfSheets() + " Sheets : ");
}
When running the scenario, I get the following error:
javascript evaluation failed: FileChecker.createExcelFile(response), java.io.IOException: Failed to read zip entry source
When testing the same endpoint in Postman, I am getting a valid excelsheet.
In Karate 0.9.X onwards you have a responseBytes variable which will be raw bytes, which may be what you need.
* def value = FileChecker.createExcelFile(responseBytes)
And you can change your method signature to be:
public static String createExcelFile(byte[] excel) {}
You should be easily able to convert a byte array to an InputStream and take it from there.
P.S. just saying that it "works in Postman" is not helpful :P
TO download zip file from Karate tests as binary bite array
Scenario: To verify and get the ADCI Uri from deployment
Given url basicURL + DeployUri +ArtifactUri
And headers {authorization:'#(authToken)',accept:'application/json',tenant:'#(tenantUUId)',Content-Type:'application/zip'}
When method get
Then status 200
And def responsebytes = responseBytes
I'm trying to create a CSV export for some data I have. Seems simple enough, and works beautifully in Firefox and Chrome, but in Internet Explorer I just get a message saying the file could not be downloaded. No other error messages, no break in Visual Studio, no debugging information that I can find.
Here's my code. Perhaps I'm doing something wrong?
public ActionResult ExportStudentsCSV(IEnumerable<Student> students) {
MemoryStream output = new MemoryStream();
StreamWriter writer = new StreamWriter(output, System.Text.Encoding.UTF8);
writer.WriteLine("Username,Year Level,School Name,State,Date Joined");
foreach (Student student in students) {
writer.WriteLine(
"\"" + student.username
+ "\",\"" + student.year_level
+ "\",\"" + student.SchoolName
+ "\",\"" + student.state
+ "\",\"" + student.join_date
+ "\""
);
}
writer.Flush();
output.Seek(0, SeekOrigin.Begin);
return File(output, "text/csv", "Students_" + DateTime.Now.ToShortDateString().Replace('/', '-') + ".csv");
}
And I'm calling this function in my controller with:
return ExportStudentsCSV(model.StudentReport.StudentList);
You may need to add a Content-Disposition header.
In your ExportStudentsCSV function, before returning:
var cd = new System.Net.Mime.ContentDisposition();
cd.FileName = "filename.csv";
Response.AddHeader("Content-Disposition", cd.ToString());
Or if you'd rather be brief about it (equivalent to above):
Response.AddHeader("Content-Disposition", "attachment;filename=filename.csv");
It may seem dodgy to be answering my own question, but I thought my experience may help someone. I did some more digging and found a completely alternate way of doing this using DataTables and a specific CsvActionResult which inherits from FileResult.
See this gist: https://gist.github.com/777376
Probably has something to do with the Content-Type/Content-Dispositon because IE follows standards when it wants to.
Check out ASP MVC3 FileResult with accents + IE8 - bugged?
I wonder if it's possible to save all files in a Visual Studio 2008 project into a specific character encoding. I got a solution with mixed encodings and I want to make them all the same (UTF-8 with signature).
I know how to save single files, but how about all files in a project?
Since you're already in Visual Studio, why not just simply write the code?
foreach (var f in new DirectoryInfo(#"...").GetFiles("*.cs", SearchOption.AllDirectories)) {
string s = File.ReadAllText(f.FullName);
File.WriteAllText (f.FullName, s, Encoding.UTF8);
}
Only three lines of code! I'm sure you can write this in less than a minute :-)
This may be of some help.
link removed due to original reference being defaced by spam site.
Short version: edit one file, select File -> Advanced Save Options. Instead of changing UTF-8 to Ascii, change it to UTF-8. Edit: Make sure you select the option that says no byte-order-marker (BOM)
Set code page & hit ok. It seems to persist just past the current file.
In case you need to do this in PowerShell, here is my little move:
Function Write-Utf8([string] $path, [string] $filter='*.*')
{
[IO.SearchOption] $option = [IO.SearchOption]::AllDirectories;
[String[]] $files = [IO.Directory]::GetFiles((Get-Item $path).FullName, $filter, $option);
foreach($file in $files)
{
"Writing $file...";
[String]$s = [IO.File]::ReadAllText($file);
[IO.File]::WriteAllText($file, $s, [Text.Encoding]::UTF8);
}
}
I would convert the files programmatically (outside VS), e.g. using a Python script:
import glob, codecs
for f in glob.glob("*.py"):
data = open("f", "rb").read()
if data.startswith(codecs.BOM_UTF8):
# Already UTF-8
continue
# else assume ANSI code page
data = data.decode("mbcs")
data = codecs.BOM_UTF8 + data.encode("utf-8")
open("f", "wb").write(data)
This assumes all files not in "UTF-8 with signature" are in the ANSI code page - this is the same what VS 2008 apparently also assumes. If you know that some files have yet different encodings, you would have to specify what these encodings are.
Using C#:
1) Create a new ConsoleApplication, then install Mozilla Universal Charset Detector
2) Run code:
static void Main(string[] args)
{
const string targetEncoding = "utf-8";
foreach (var f in new DirectoryInfo(#"<your project's path>").GetFiles("*.cs", SearchOption.AllDirectories))
{
var fileEnc = GetEncoding(f.FullName);
if (fileEnc != null && !string.Equals(fileEnc, targetEncoding, StringComparison.OrdinalIgnoreCase))
{
var str = File.ReadAllText(f.FullName, Encoding.GetEncoding(fileEnc));
File.WriteAllText(f.FullName, str, Encoding.GetEncoding(targetEncoding));
}
}
Console.WriteLine("Done.");
Console.ReadKey();
}
private static string GetEncoding(string filename)
{
using (var fs = File.OpenRead(filename))
{
var cdet = new Ude.CharsetDetector();
cdet.Feed(fs);
cdet.DataEnd();
if (cdet.Charset != null)
Console.WriteLine("Charset: {0}, confidence: {1} : " + filename, cdet.Charset, cdet.Confidence);
else
Console.WriteLine("Detection failed: " + filename);
return cdet.Charset;
}
}
I have created a function to change encoding files written in asp.net.
I searched a lot. And I also used some ideas and codes from this page. Thank you.
And here is the function.
Function ChangeFileEncoding(pPathFolder As String, pExtension As String, pDirOption As IO.SearchOption) As Integer
Dim Counter As Integer
Dim s As String
Dim reader As IO.StreamReader
Dim gEnc As Text.Encoding
Dim direc As IO.DirectoryInfo = New IO.DirectoryInfo(pPathFolder)
For Each fi As IO.FileInfo In direc.GetFiles(pExtension, pDirOption)
s = ""
reader = New IO.StreamReader(fi.FullName, Text.Encoding.Default, True)
s = reader.ReadToEnd
gEnc = reader.CurrentEncoding
reader.Close()
If (gEnc.EncodingName <> Text.Encoding.UTF8.EncodingName) Then
s = IO.File.ReadAllText(fi.FullName, gEnc)
IO.File.WriteAllText(fi.FullName, s, System.Text.Encoding.UTF8)
Counter += 1
Response.Write("<br>Saved #" & Counter & ": " & fi.FullName & " - <i>Encoding was: " & gEnc.EncodingName & "</i>")
End If
Next
Return Counter
End Function
It can placed in .aspx file and then called like:
ChangeFileEncoding("C:\temp\test", "*.ascx", IO.SearchOption.TopDirectoryOnly)
if you are using TFS with VS :
http://msdn.microsoft.com/en-us/library/1yft8zkw(v=vs.100).aspx
Example :
tf checkout -r -type:utf-8 src/*.aspx
Thanks for your solutions, this code has worked for me :
Dim s As String = ""
Dim direc As DirectoryInfo = New DirectoryInfo("Your Directory path")
For Each fi As FileInfo In direc.GetFiles("*.vb", SearchOption.AllDirectories)
s = File.ReadAllText(fi.FullName, System.Text.Encoding.Default)
File.WriteAllText(fi.FullName, s, System.Text.Encoding.Unicode)
Next
If you want to avoid this type of error :
Use this following code :
foreach (var f in new DirectoryInfo(#"....").GetFiles("*.cs", SearchOption.AllDirectories))
{
string s = File.ReadAllText(f.FullName, Encoding.GetEncoding(1252));
File.WriteAllText(f.FullName, s, Encoding.UTF8);
}
Encoding number 1252 is the default Windows encoding used by Visual Studio to save your files.
Convert from UTF-8-BOM to UTF-8
Building on rasx's answer, here is a PowerShell function that assumes your current files are already encoded in UTF-8 (but maybe with BOM) and converts them to UTF-8 without BOM, therefore preserving existing Unicode characters.
Function Write-Utf8([string] $path, [string] $filter='*')
{
[IO.SearchOption] $option = [IO.SearchOption]::AllDirectories;
[String[]] $files = [IO.Directory]::GetFiles((Get-Item $path).FullName, $filter, $option);
foreach($file in $files)
{
"Writing $file...";
[String]$s = [IO.File]::ReadAllText($file, [Text.Encoding]::UTF8);
[Text.Encoding]$e = New-Object -TypeName Text.UTF8Encoding -ArgumentList ($false);
[IO.File]::WriteAllText($file, $s, $e);
}
}
Experienced encoding problems after converting solution from VS2008 to VS2015. After conversion all project files was encoded in ANSI, but they contained UTF8 content and was recongnized as ANSI files in VS2015. Tried many conversion tactics, but worked only this solution.
Encoding encoding = Encoding.Default;
String original = String.Empty;
foreach (var f in new DirectoryInfo(path).GetFiles("*.cs", SearchOption.AllDirectories))
{
using (StreamReader sr = new StreamReader(f.FullName, Encoding.Default))
{
original = sr.ReadToEnd();
encoding = sr.CurrentEncoding;
sr.Close();
}
if (encoding == Encoding.UTF8)
continue;
byte[] encBytes = encoding.GetBytes(original);
byte[] utf8Bytes = Encoding.Convert(encoding, Encoding.UTF8, encBytes);
var utf8Text = Encoding.UTF8.GetString(utf8Bytes);
File.WriteAllText(f.FullName, utf8Text, Encoding.UTF8);
}
the item is removed from the menu in Visual Studio 2017
You can still access the functionality through File-> Save As -> then clicking the down arrow on the Save button and clicking "Save With Encoding...".
You can also add it back to the File menu through Tools->Customize->Commands if you want to.
I'm only offering this suggestion in case there's no way to automatically do this in Visual Studio (I'm not even sure this would work):
Create a class in your project named 足の不自由なハッキング (or some other unicode text that will force Visual Studio to encode as UTF-8).
Add "using MyProject.足の不自由なハッキング;" to the top of each file. You should be able to do it on everything by doing a global replace of "using System.Text;" with "using System.Text;using MyProject.足の不自由なハッキング;".
Save everything. You may get a long string of "Do you want to save X.cs using UTF-8?" messages or something.