[Bug]: Reject non-GitHub URLs in `parseGithubPath()`

Contact details

me@sepand.tech

What happened?

parseGithubPath() accepts any URL that starts with http and extracts its first two path segments as a GitHub username and repository name. As a result, URLs from unrelated domains can be incorrectly converted into GitHub Pages URLs.

For example:

https://example.com/alice/project

can be interpreted as:

https://alice.github.io/project

Steps to reproduce

1. Open GitHubP.

2. Enter: https://example.com/alice/project

3. Click Go.

Expected behavior

Only URLs belonging to github.com should be accepted when a full URL is provided.

For example:

https://github.com/alice/project
https://www.github.com/alice/project

should be accepted, while:

https://example.com/alice/project

should be rejected with the existing Invalid GitHub path error.

Actual behavior

A URL from an unrelated domain can be parsed as a valid GitHub path and redirected to the corresponding GitHub Pages URL.

Device type

Desktop

Browser

Chrome

GitHubP version

GitHubP 0.6

Relevant log output