Regression - 1.22 wiki links which contain dots point to "raw" media and only return plain text

[reimer-atb]

Description

Steps to reproduce

1. Create a wiki page with a hyphen - or a dot . in the name
2. Link to that page from another wiki page

Result

Clicking on the link will only return a plain text representation of the linked wiki page's content.

Expected Result

The whole wiki page html should be returned

Additional info

This was working in gitea 1.21.8.

The auto-generated URLs for the wiki pages with a hyphen end in .- and the ones for wiki pages with a . contain the dot.

I assume that this change caused the problem.

Example project with wiki

https://demo.gitea.com/reimer-atb/test/wiki/Home

Example markdown with links that do not work

Welcome to the Wiki.

- [Test](Test) => works
- [Test with spaces](Test-with-spaces) => works
- [Test-with-hyphen](Test-with-hyphen.-) => does **not** work
- [Test+with+spaces+2024-06-17.-](Test+with+spaces+2024-06-17.-) => does **not** work
- [2024-06-17](2024-06-17.-) => does **not** work
- [17-06-2024](17-06-2024.-) => does **not** work
- [17.06.2024](17.06.2024) => does **not** work
- [06/17/2024](06%2F17%2F2024) => works
- [17/06/2024](17%2F06%2F2024) => works

Gitea Version

1.22.0

Can you reproduce the bug on the Gitea demo site?

Yes

Log Gist

No response

Screenshots

No response

Git Version

No response

Operating System

No response

How are you running Gitea?

Tested on demo.gitea.com and on a private gitea 1.22.0 instance (no idea how that is run because it is provided by someone else).

Database

None

[wxiaoguang]

-> Fix rendered wiki page link #31398

[reimer-atb]

@wxiaoguang please re-open because this is not fixed completely yet. Links are still broken if a wiki page's title contains a dot ..

Example pages:

• "Meeting 18.07.2024"
• "main.go"

See https://demo.gitea.com/reimer-atb/test/wiki/Home

[wxiaoguang]

There is still a regression, from "Use raw Wiki links for non-renderable Wiki files (#30273)"

30273 renders all links to raw by default.

ps: I don't have time to work on Gitea at the moment. So if anyone has interest, feel free to fix or revert.

[Zettat123]

I did some tests on GitHub.

The link in Home.md is

- [main.go](main.go)

• If main.go.md and main.go both exist, the content of main.go.md will be rendered when clicking the link
• Only main.go.md exists but no main.go, the same as above
• Only main.go exists but no main.go.md, the plain text of main.go will be displayed
• If neither main.go.md nor main.go exist, the page for creating a new wiki will be displayed

I think we can fix the issue like GitHub does. We can check if the corresponding .md file exists when rendering the link.
If the .md file does not exist, render the raw file link.