Link to a UNC path

(Dominik Hug) #1


I use Discourse as a Intranet Forum.
Now I try to make a Hyperlink to a file on a servershare (\\server.domain.local\share\file.txt).

When I create a link to a UNC path, it appears, but it does not work. When I click on the link nothing happens.

Thats the code I try in Discourse:
[My File] (file://///server.domain.local/share/file.txt)

Is there a way to create a Hyperlink to a UNC Path? Or is it generally not supported?

(David Taylor) #2

Have you added “file” to the allowed href schemes site setting?

(Dominik Hug) #3

Hi David

That does the trick :grinning::thumbsup:

Thank you!

(Jelle Feringa) #4

It looks like the updated markdown renderer won’t convert file:// paths properly ( discourse 1.9.5 )

(Pierre Grand) #5

I have added file to “allowed href schemes” but when I create a hyperlink using a file:// url, Discourse will post it with https instead of file.
Then when changing the https back to “file” it’s still opening a https link when clicking on it.

Is the “file” scheme supported in Discourse(I’m in v2.2.0.beta2 +5)?

(Jeff Atwood) #6

@jomaxro can you verify we didn’t regress on href scheme support?

(Joshua Rosenfeld) #8

Can confirm that we did not regress completely, adding ftp or steam works. I cannot get file to work, however, though that could just mean I’m doing something wrong. Never used the file href scheme before.

(Jeff Atwood) #9

Why are there an unusual number of forward slashes in there? Shouldn’t it be the same pattern for all schemes?

(Joshua Rosenfeld) #10

No clue. As mentioned, I’ve never seen the file href before. I used 3 for my screenshot as that’s what I saw over on SO: html - href="file://" doesn't work - Stack Overflow. In any case, I tried 1 (just in case), 2 (normal), 3 (SO answer), 4, & 5 (example in OP) slashes, none worked.


Is there any update on this issue? I run in the same problem using latest version. File is not working as expected.

(Tony) #12

Hi, I’m trying to use local links to PDF documents on local shared network device. I run Discourse locally as a documentation tool. I have tried to add “file” in the href settings, but cannot get a working local link. Is there any way around this? Is this broken or am I doing it wrong?

(Jeff Atwood) #13

We should check this again @jomaxro

(Joshua Rosenfeld) #14

Updated my sandbox to 2.3.0.beta1, still not able to get file to work. Re-confirmed other custom href schemes do still work.

(David Taylor) #15

It’s weird… <a href="file://myfile">link</a> works, but [link](file://myfile) does not. But both options work for other custom schemes as @jomaxro said :thinking:

Maybe something in the commonmark link internals is stripping out file:// specifically. A quick search doesn’t reveal anything obvious in the discourse codebase.

@user2 the workaround for now is to use the HTML syntax for your link

<a href="file://myfile">link</a>

Edit: even with that, we still have an issue with file:// protocols. It is very common for file paths to start with a / (signifying the root of the filesystem), so the link looks like file:///myfile. Our sanitizer doesn’t like the three slashes at the beginning, and treats the link as invalid.

(Tony) #16

Does this only apply for *NIX paths?
file:// C:/file.f
file:// /var/file.f

Edit: Opened a file in browser and I see file:///K:/file…
So same on windows. But <a href=“file://myfile”>link</a> does not work either.
Maybe it works on *nix based system but not on windows paths?

<a href="file://C:/test.log">test</a>