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Merge pull request #91 from GoASTScanner/experimental
Update unsafe rule to match package explicitly
This commit is contained in:
commit
d30c5cde36
2 changed files with 11 additions and 6 deletions
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@ -138,7 +138,6 @@ func (gas *Analyzer) process(filename string, source interface{}) error {
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for _, pkg := range gas.context.Pkg.Imports() {
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gas.context.Imports.Imported[pkg.Path()] = pkg.Name()
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}
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ast.Walk(gas, root)
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gas.Stats.NumFiles++
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}
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@ -203,8 +202,8 @@ func (gas *Analyzer) Visit(n ast.Node) ast.Visitor {
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// Track aliased and initialization imports
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if imported, ok := n.(*ast.ImportSpec); ok {
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if imported.Name != nil {
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path := strings.Trim(imported.Path.Value, `"`)
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if imported.Name != nil {
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if imported.Name.Name == "_" {
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// Initialization import
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gas.context.Imports.InitOnly[path] = true
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@ -213,7 +212,12 @@ func (gas *Analyzer) Visit(n ast.Node) ast.Visitor {
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gas.context.Imports.Aliased[path] = imported.Name.Name
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}
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}
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// unsafe is not included in Package.Imports()
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if path == "unsafe" {
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gas.context.Imports.Imported[path] = path
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}
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}
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if val, ok := gas.ruleset[reflect.TypeOf(n)]; ok {
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for _, rule := range val {
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ret, err := rule.Match(n, &gas.context)
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@ -17,16 +17,16 @@ package rules
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import (
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gas "github.com/GoASTScanner/gas/core"
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"go/ast"
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"regexp"
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)
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type UsingUnsafe struct {
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gas.MetaData
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pattern *regexp.Regexp
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pkg string
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calls []string
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}
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func (r *UsingUnsafe) Match(n ast.Node, c *gas.Context) (gi *gas.Issue, err error) {
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if node := gas.MatchCall(n, r.pattern); node != nil {
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if _, matches := gas.MatchCallByPackage(n, c, r.pkg, r.calls...); matches {
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return gas.NewIssue(c, n, r.What, r.Severity, r.Confidence), nil
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}
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return nil, nil
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@ -34,7 +34,8 @@ func (r *UsingUnsafe) Match(n ast.Node, c *gas.Context) (gi *gas.Issue, err erro
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func NewUsingUnsafe(conf map[string]interface{}) (gas.Rule, []ast.Node) {
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return &UsingUnsafe{
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pattern: regexp.MustCompile(`unsafe\..*`),
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pkg: "unsafe",
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calls: []string{"Alignof", "Offsetof", "Sizeof", "Pointer"},
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MetaData: gas.MetaData{
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What: "Use of unsafe calls should be audited",
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Severity: gas.Low,
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