feat(entrypoints): Go / Ruby / C / C++ framework detectors#20
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Adds Option A from the v0.2.0 roadmap — entrypoint detection for the
three languages that lagged behind the decorator-based detectors because
their conventions don't fit the scan-lines-above-start pattern.
Go:
- `http.HandleFunc("/path", name)` / `http.Handle(...)` stdlib.
- Router DSLs that share the `<receiver>.(GET|POST|PUT|PATCH|DELETE|
HEAD|OPTIONS|Any|Match)("/path", handler)` shape — gin, chi, echo,
fiber, and similar community routers.
The _SourceCache now exposes `go_http_handler_names(path)` which scans
a file once and caches the set of handler identifiers registered
anywhere in it; the detector looks up each function by name.
Ruby:
- Rails controllers — classes inheriting ApplicationController or
ActionController::*. Every method of such a class is tagged as an
untrusted-external API entrypoint.
- Sidekiq workers — classes with `include Sidekiq::Worker` /
`Sidekiq::Job`. Only the `perform` method is tagged.
Adds a class-body scanner to _SourceCache that tracks `class X ... end`
nesting to map include directives to their enclosing class.
C / C++:
- `extern "C"` linkage.
- `__attribute__((visibility("default")))`.
- `__declspec(dllexport)`.
Markers are matched on the signature line or the line immediately above
it; plain non-static functions are intentionally NOT flagged (too broad
for audit purposes — use the override file).
Also fixes a pre-existing gap in the C++ parser: `extern "C" int foo()`
wraps the function in a `linkage_specification` node, which the parser
wasn't unwrapping, so no function node was emitted. Now handled.
8 new tests across Go, Ruby, and C/C++ detection. README coverage
table updated.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Adds Option A from the v0.2.0 roadmap — entrypoint detection for the three languages that lagged behind the decorator-based detectors because their conventions don't fit the scan-lines-above-start pattern.
Go:
http.HandleFunc("/path", name)/http.Handle(...)stdlib.<receiver>.(GET|POST|PUT|PATCH|DELETE| HEAD|OPTIONS|Any|Match)("/path", handler)shape — gin, chi, echo, fiber, and similar community routers. The _SourceCache now exposesgo_http_handler_names(path)which scans a file once and caches the set of handler identifiers registered anywhere in it; the detector looks up each function by name.Ruby:
include Sidekiq::Worker/Sidekiq::Job. Only theperformmethod is tagged. Adds a class-body scanner to _SourceCache that tracksclass X ... endnesting to map include directives to their enclosing class.C / C++:
extern "C"linkage.__attribute__((visibility("default"))).__declspec(dllexport). Markers are matched on the signature line or the line immediately above it; plain non-static functions are intentionally NOT flagged (too broad for audit purposes — use the override file).Also fixes a pre-existing gap in the C++ parser:
extern "C" int foo()wraps the function in alinkage_specificationnode, which the parser wasn't unwrapping, so no function node was emitted. Now handled.8 new tests across Go, Ruby, and C/C++ detection. README coverage table updated.