fix(sdk): apply the files section of .nuclei-ignore

[G360-Niek]

Proposed changes

Fixes #7696.

config.ReadIgnoreFile() returns both sections of .nuclei-ignore — tags and files — but applyRequiredDefaults applied only tags:

e.opts.ExcludeTags = append(e.opts.ExcludeTags, config.ReadIgnoreFile().Tags...)

ExcludedTemplates was never populated from the ignore file, so the whole files section was inert for every SDK consumer. The CLI runner applies both (internal/runner/runner.go), so this was a CLI/SDK parity gap.

That section exists to suppress templates with known weak matchers — the shipped file comments them as such — so library users were receiving false positives the CLI would never report.

This populates ExcludedTemplates from ignoreFile.Files to match internal/runner. ExcludedTemplates already flows to the loader as Config.ExcludeTemplates, so no new plumbing is involved.

Proof

Added TestIgnoreFileFilesSectionIsApplied in lib/sdk_test.go. It points the config and templates dirs at a t.TempDir(), writes a .nuclei-ignore with both sections, builds an engine and asserts both land — following the existing save/SetConfigDir/restore pattern from pkg/catalog/config/template_test.go.

Without the change:

--- FAIL: TestIgnoreFileFilesSectionIsApplied
    Error:    goflags.StringSlice(nil) does not contain "http/fuzzing/wordpress-themes-detect.yaml"
    Messages: files section should reach ExcludedTemplates

With the change:

--- PASS: TestIgnoreFileFilesSectionIsApplied (0.05s)
ok  github.com/projectdiscovery/nuclei/v3/lib

Full go test ./lib/ passes apart from ExampleThreadSafeNucleiEngine, which fails identically on unmodified dev in my environment (a network-dependent example expecting a caa-fingerprint result for honey.scanme.sh) — unrelated to this change.

Checklist

• Pull request is created against the dev branch
• All checks passed (lint, unit/integration/regression tests etc.) with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

Summary by CodeRabbit

• Bug Fixes
  • .nuclei-ignore configurations now correctly apply both excluded tags and excluded template files when running scans.
  • Missing .nuclei-ignore files no longer prevent the engine from starting.

[neo-by-projectdiscovery-dev]

Neo - PR Security Review

The incremental delta is safe — all new functionality (proxy tunnel support, SOPS decryption, timeout propagation, deadlock prevention) operates on operator-configured inputs with no attacker-controlled data paths.

What Neo reviewed

pkg/js/libs/http/http.go, pkg/js/libs/net/net.go, pkg/authprovider/authx/file.go, pkg/authprovider/authx/dynamic.go, pkg/js/compiler/session.go, pkg/js/compiler/compiler.go, pkg/js/global/scripts.go, internal/runner/runner.go, internal/runner/lazy.go, pkg/catalog/config/ignorefile.go, pkg/catalog/loader/loader.go, lib/sdk_private.go, .sops.yaml, .gitignore

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[coderabbitai]

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📒 Files selected for processing (2)

• lib/sdk_private.go
• lib/sdk_test.go

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• lib/sdk_test.go

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---

Walkthrough

The SDK now reads both tags and files from .nuclei-ignore. A regression test verifies that both values populate the corresponding engine options.

Changes

SDK ignore-file handling

Layer / File(s)	Summary
Apply and validate ignore-file exclusions lib/sdk_private.go, lib/sdk_test.go	applyRequiredDefaults now appends ignore-file tags to ExcludeTags and files to ExcludedTemplates. The regression test verifies both values after engine initialization.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to 68902

The SDK now applies both tag and file exclusions from .nuclei-ignore, with coverage for both sections. No current merge-blocking risk remains.

Suggested reviewers: dwisiswant0, mzack9999

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🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 2 functions across 2 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the primary change: applying the files section of .nuclei-ignore in the SDK.
Linked Issues check	✅ Passed	The PR satisfies issue #7696 by loading .nuclei-ignore and appending ignoreFile.Tags to ExcludeTags and ignoreFile.Files to ExcludedTemplates. The regression test verifies both sections.
Out of Scope Changes check	✅ Passed	The changes remain within scope. The ignore-file loading refactor, state cleanup update, and regression test directly support SDK parity with CLI behavior.

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[coderabbitai]

Actionable comments posted: 1

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Inline comments:
In `@lib/sdk_test.go`:
- Around line 130-135: Update the test cleanup around config.DefaultConfig to
save the original state directory with GetStateDir and restore it using
SetStateDir after SetConfigDir, alongside the existing config and templates
directory restoration.

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Configuration used: Organization UI

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Run ID: 6dd9d302-e30f-4d7b-b60e-48d5d7c8594f

📥 Commits

Reviewing files that changed from the base of the PR and between a34f810 and f66a832.

📒 Files selected for processing (2)

• lib/sdk_private.go
• lib/sdk_test.go

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[dwisiswant0]

Thanks for catching and fixing it! 🤟