I have this .jpg file that cannot be opened nor viewed. But the thing is my friend who sent me this file said that this file actually contains hidden files inside and is MOST likely encrypted. I searched on Google and I found out that I had to rename the extension ".jpg" to ".zip" and tried to extract the file but it doesn't work. I forgot the message that was shown during my attempt to extract. Maybe the file is actually not a .jpg but something else and is corrupt or maybe it has "hidden" files inside.
So I'm wondering if you guys could help me out.
You should use TrIDNet http://mark0.net/soft-tridnet-e.html. I didn't test it but I think that you seek for something like this. Your file has an unknown type and you must find with which known type it matches.
Related
I try to upload the Base App.xlf file from English into German (by Business Central 15), but everytime I upload the file, I receive an error that says "Failed to extract the contents of the uploaded file." after 2-3 minutes. If I upload a smaller .xlf file, everything is fine.
Base App.xlf: 62.25Mb
Smaller file: 74Kb
Both files are written in xliff version 1.2. Regarding to the post below, Custom Translator supports it in 2018.
Custom translator cannot extract contents of XLIFF file
I can't figure out, why the bigger file is not processed. Some more information would be useful. Is this error thrown cause of special character?
I just figuered out that the Base Application has some missing -tags in the -tags, which leads to the error, obviously. I used an xlst-File to delete tags with missing . This deleted -tags with an empty -tag, too.
I have a QDialogBox where there is an option to upload a file.
I can upload files and save them to a folder. It works fine.
But if in case there is a file that already exists in the folder, I am not sure how to handle that scenario.
I want to warn the user that the file with same name already exists.
Is there a Windows API that I can use in this case? (because when we manually save an existing file, we get a warning, how can I use that?)
If someone can point me to that documentation, it will be great.
If you are using a QFileDialog, confirmOverwrite is activated by default, so, if getSaveFileName() returned a non-empty QString, then that means the user accepted to overwrite the file. Other way, you get an empty QString.
Then, you can check if the file exists, and remove it in that case, but you know that the user was Ok with that.
There is always a potential race condition when saving files. Checking to see if the file exists first is not safe, because some other process could create a file with the same name in between the check and when you actually write the file.
To avoid problems, the file must be opened with exclusive access, and in such a way that it immediately fails if it already exists.
If you want to do things properly, take a look at these two answers:
How do I create a file in python without overwriting an existing
file
Safely create a file if and only if it does not exist with
python
You can use QDir::entryList() to get the file names in a directory if you're not using a QFileDialog.
QDir dir("/path/to/directory");
QStringList fileNames = dir.entryList();
Then iterating through file names, you can see if there's a file with the same name. If you need it, I can give an example for that too. It'd be C++, but easily adaptable to Python.
Edit: Smasho just suggested that using QDir::exists() method. You can check if the file name exists in the directory with this method instead of iterating like I suggested.
if(dir.exists(uploadedFileName))
I have several SQLITE files all of which have Kind set correctly to Document except for one which is Kind = Unix Executable file. It still loads and runs fine. I'd like to clean this up but can't find a way to change Kind for this file to Document.
Anybody know why Kind would have been set incorrectly in the first place and how to change it to the correct value? I've searched here and on Google.
Is there an extension (possibly hidden) set on the file? I think that 'Documents' are merely files without extensions. I'd try File>Get Info on it (via Finder) and checking to make sure there isn't a hidden extension in the 'Name & Extension'
I had the same issue with my php_error.log file. It was "document" and then I foolishly changed the "kind". That mean that the php log wouldn't work and my MAMP server didn't recognise it.
It's still "text document", but to fix the issue I opened up the file in TextEdit, selected "make rich text" under format, saved the file, closed it down, reopened it in TextEdit, selected "make plain text" under format, saved the file and it worked...
At the moment i get file extension of the file like :
string fileExt = System.IO.Path.GetExtension(filUpload.FileName);
But if the user change the file extension of the file ( for example user could rename "test.txt" to "test.jpg" ), I can't get the real extension . What's the solution ?
You seem to be asking if you can identify file-type from its content.
Most solutions will indeed attempt the file extension, but there are too many different possible file types to be reliably identifiable.
Most approaches use the first several bytes of the file to determine what they are.
Here is one list, here another.
If you are only worried about text vs binary, see this SO question and answers.
See this SO answer for checking if a file is a JPG - this approach can be extended to use other file headers as in the first two links in this answer.
Whatever the user renames the file extension to, that is the real file extension.
You should never depend on the file extension to tell you what's in the file, since it can be renamed.
See "how can we check file types before uploading them in asp.net?"
There's no way to get the 'real' file extension - the file extension that you get from the filename is the real one. If file content is your concern, you can retrieve the content type using the .ContentType property and verify that it is a content type that you are expecting - eg. image/jpg.
I've got a web page with a link, and the link is suppose to correspond to a PDF is the given user's language. I'm wondering where I should put these PDF files though. If I put them in App_LocalResources, I can't specify a link to /App_LocalResources/TOS_en-US.pdf can I?
The PDF should definitely not be in the App_LocalResources folder. That folder is only for RESX files.
The PDF files can go anywhere else in your app. For example, a great place to put them would be in a ~/PDF folder. Then your links will have to be dynamically generated (similar to what Greg has shown):
string cultureSpecificFileName = String.Format("TOS_{0}.pdf", CultureInfo.CurrentCulture.Name);
However, there are some other things to consider:
You need a way to ensure that you actually have a PDF for the given language. If someone shows up at your site and has their culture specified as Klingon, it's unlikely that you have such a PDF.
You need to decide exactly what the file format will be. In the example given, the file would have to be named TOS_en-US.pdf. It you want to use the 2-letter ISO culture names, use CurrentCulture.TwoLetterISOLanguageName and then the file name would be TOS_en.pdf.
I would store the filename somewhere with an argument in it (i.e. "TOS_{0}.pdf" ) and then just add the appropriate suffix in code:
string cultureSpecificFileName = string.Format("TOS_{0}.pdf", CultureInfo.CurrentCulture);
Does the PDF have to have the same file name for each of the different languages? If not, put them all into a directory and just store the path in your resources file.