URL encoding in Ignition

Ignition
,
1

Hi everyone,

I have a webdev mounted folder which has pdf files.
I access these files through URL.
One of the files has name "test - (Copy).pdf".

When I generate the URL and try to open it, I get the error "HTTP error 404 not found".
I tried encoding the url using urllib with percent-encoding but still getting the same error.

2 encoded names that I tried:

  • test%20-%20(Copy).pdf
  • test%20-%20%28Copy%29.pdf

What am I doing wrong?
How can I solve this issue?
What is the best method to encode for any special characters?

I'll really appreciate any advice in this matter.
A sample code would be the best.

Thanks,
Ajay

2

(post deleted by author)

3

(post deleted by author)

4

(post deleted by author)

5

Use java.net.URLEncoder

6

Thanks for your suggestion.

Do you have a sample code for this?

Below is the code that I am using which gives me "test+-+%28Copy%29.pdf" at the end.
The generate URL does not work.

I still get the same 404 error.

Is there any limitation on the special characters that I should consider?
Appreciate your help in this.

from java.net import URLEncoder
from java.nio.charset import StandardCharsets

def encode_url():
    try:
        url = "https://ServerAddress:443/system/webdev/ProjectName/FileSystem/NetworkDrives/MyFolder/test - (Copy).pdf"
        
        # Encode only the path component that needs encoding
        base_url = "https://ServerAddress:443/system/webdev/ProjectName/FileSystem/NetworkDrives/MyFolder/"
        file_name = "test - (Copy).pdf"
        
        # Use URLEncoder to encode the file name
        encoded_file_name = URLEncoder.encode(file_name, StandardCharsets.UTF_8.toString())
        
        # Form the complete encoded URL
        encoded_url = base_url + encoded_file_name
        
        print("Encoded URL:", encoded_url)
        return encoded_url
    except Exception as e:
        # Print any exceptions that occur
        print("An error occurred:", e)

# Call the function to encode the URL
encoded_url = encode_url()

print encoded_url
7

That looks about right. Look in your gateway logs for possible error messages.

8

This looks like a bug in the WebDev module to me. You shouldn't even have to manually URL-encode anything, your browser will do that before it sends the request anyway.

9

And your code works on a basic named file?

10

Yes, it works with basic named files.

11

I don't encode usually but since it was not working, I started exploring options. URL encoding is something that came to my mind first.
Even that is not helping.

I got to know from one of my colleagues that special characters in names poses this problem in Ignition when it comes to generating URLs.
I want to explore my options before I go to removing the special characters (like "()") from the filename, host the file to some other location with new name and get the URL from there.

If there is a way, please let me know.

I appreciate your response in this regard.

@pturmel I don't get any error neither in browser console nor in Gateway log.

Thanks,
Ajay

12

I think it's broken. Open a support ticket and report a bug.