Fix Bitbucket line highlighting URLs

[shahzadhaider1]

Problem

Bitbucket source links generated by TruffleHog do not highlight the correct line when clicked.

• Bitbucket Cloud: GenerateLink() produces /commits/{hash} URLs with no file path or line fragment. UpdateLinkLineNumber() explicitly skips Bitbucket with a comment saying "it doesn't support line links", which is incorrect.
• Bitbucket Server/Data Center: URLs use custom domains that determineProvider() doesn't recognize, so they fall through to the default case which appends GitHub-style #L{line} fragments. This format does not work on Bitbucket Server.

Root Cause

determineProvider() only detects Bitbucket Cloud (bitbucket.org). Bitbucket Server URLs are unrecognized and treated as GitHub/GitLab. Neither Cloud nor Server gets the correct line fragment format.

Fix

GenerateLink(): Bitbucket Cloud now generates /src/{commit}/{file} URLs (matching the existing behavior in the scanner's makeCommitURL) with #lines-{line} fragments.
UpdateLinkLineNumber():

• Bitbucket Cloud (bitbucket.org): appends #lines-{line}
• Bitbucket Server/Data Center (detected via /projects/.../repos/... path structure): appends #{line} (bare number)

determineProvider(): New providerBitbucketServer detection using isBitbucketServerURL() which checks for the distinctive /projects/ + /repos/ path pattern in Bitbucket Server URLs.

Correct URL formats

Platform: Bitbucket Cloud
View: Source File
Fragment format: #lines-{line}

Platform: Bitbucket Server
View: Source File
Fragment format: #{line}

References

• Atlassian docs: Hyperlink to source code in Bitbucket
• BCLOUD-8760: line highlighting via #cl-N (legacy format, #lines-N is current canonical)
• BCLOUD-10622: multi-line range support #lines-X:Y (resolved March 2017)
• BSERV-7952: Server 7.0 diff line linking
• Community thread confirming Data Center URL format

Verification

Working examples:

• Line: https://bitbucket.org/fargo3d/public/src/2f230c6334a85fbee3818bdf9ad9b3367c9f778b/utils/python/parameters.py#lines-19 : highlights line 19
• Line range: https://bitbucket.org/fargo3d/public/src/2f230c6334a85fbee3818bdf9ad9b3367c9f778b/utils/python/parameters.py#lines-19:27 : highlights lines 19-27

Checklist:

• Tests passing (make test-community)?
• Lint passing (make lint this requires golangci-lint)?

Testing

Scan now produces results that include the line number in the secret location URL and upon clicking those URLs, the secrets are correctly highlighted, as shown in the screenshots below:

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Note

Low Risk
Low risk: changes are limited to URL/provider detection and link formatting, with added unit tests; primary impact is on generated report links for Bitbucket Cloud/Server.

Overview
Fixes Bitbucket links so TruffleHog can deep-link to the correct source file and highlighted line.

GenerateLink now produces Bitbucket Cloud /src/{commit}/{file} URLs (optionally with #lines-{N}), and UpdateLinkLineNumber updates Bitbucket Cloud fragments using the lines-{N} format while adding Bitbucket Server/Data Center support via new provider detection (/projects/.../repos/...) that uses #{N} fragments. Tests are expanded to cover the new Bitbucket Cloud and Bitbucket Server behaviors.

^{Reviewed by Cursor Bugbot for commit 4f22ca1. Bugbot is set up for automated code reviews on this repo. Configure here.}

[alafiand]

This looks like a good fix to make these links more useful. I imagine downstream consumers of these links could have systems in place relying on the old URL format, but I can't imagine they will be upset to see that the links have been fixed.