mirror of
https://github.com/securego/gosec.git
synced 2024-11-05 19:45:51 +00:00
587 lines
19 KiB
Go
587 lines
19 KiB
Go
package gosec_test
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import (
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"errors"
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"io/ioutil"
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"log"
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"os"
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"strings"
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"github.com/securego/gosec/v2"
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"github.com/securego/gosec/v2/rules"
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"golang.org/x/tools/go/packages"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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"github.com/securego/gosec/v2/testutils"
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)
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var _ = Describe("Analyzer", func() {
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var (
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analyzer *gosec.Analyzer
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logger *log.Logger
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buildTags []string
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tests bool
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)
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BeforeEach(func() {
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logger, _ = testutils.NewLogger()
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analyzer = gosec.NewAnalyzer(nil, tests, false, logger)
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})
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Context("when processing a package", func() {
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It("should not report an error if the package contains no Go files", func() {
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analyzer.LoadRules(rules.Generate().Builders())
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dir, err := ioutil.TempDir("", "empty")
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defer os.RemoveAll(dir)
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Expect(err).ShouldNot(HaveOccurred())
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err = analyzer.Process(buildTags, dir)
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Expect(err).ShouldNot(HaveOccurred())
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_, _, errors := analyzer.Report()
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Expect(len(errors)).To(Equal(0))
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})
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It("should report an error if the package fails to build", func() {
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analyzer.LoadRules(rules.Generate().Builders())
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pkg := testutils.NewTestPackage()
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defer pkg.Close()
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pkg.AddFile("wonky.go", `func main(){ println("forgot the package")}`)
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err := pkg.Build()
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Expect(err).Should(HaveOccurred())
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err = analyzer.Process(buildTags, pkg.Path)
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Expect(err).ShouldNot(HaveOccurred())
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_, _, errors := analyzer.Report()
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Expect(len(errors)).To(Equal(1))
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for _, ferr := range errors {
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Expect(len(ferr)).To(Equal(1))
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}
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})
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It("should be able to analyze multiple Go files", func() {
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analyzer.LoadRules(rules.Generate().Builders())
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pkg := testutils.NewTestPackage()
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defer pkg.Close()
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pkg.AddFile("foo.go", `
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package main
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func main(){
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bar()
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}`)
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pkg.AddFile("bar.go", `
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package main
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func bar(){
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println("package has two files!")
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}`)
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err := pkg.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = analyzer.Process(buildTags, pkg.Path)
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Expect(err).ShouldNot(HaveOccurred())
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_, metrics, _ := analyzer.Report()
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Expect(metrics.NumFiles).To(Equal(2))
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})
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It("should be able to analyze multiple Go packages", func() {
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analyzer.LoadRules(rules.Generate().Builders())
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pkg1 := testutils.NewTestPackage()
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pkg2 := testutils.NewTestPackage()
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defer pkg1.Close()
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defer pkg2.Close()
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pkg1.AddFile("foo.go", `
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package main
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func main(){
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}`)
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pkg2.AddFile("bar.go", `
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package main
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func bar(){
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}`)
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err := pkg1.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = pkg2.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = analyzer.Process(buildTags, pkg1.Path, pkg2.Path)
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Expect(err).ShouldNot(HaveOccurred())
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_, metrics, _ := analyzer.Report()
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Expect(metrics.NumFiles).To(Equal(2))
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})
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It("should find errors when nosec is not in use", func() {
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sample := testutils.SampleCodeG401[0]
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source := sample.Code[0]
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analyzer.LoadRules(rules.Generate(rules.NewRuleFilter(false, "G401")).Builders())
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controlPackage := testutils.NewTestPackage()
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defer controlPackage.Close()
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controlPackage.AddFile("md5.go", source)
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err := controlPackage.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = analyzer.Process(buildTags, controlPackage.Path)
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Expect(err).ShouldNot(HaveOccurred())
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controlIssues, _, _ := analyzer.Report()
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Expect(controlIssues).Should(HaveLen(sample.Errors))
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})
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It("should report Go build errors and invalid files", func() {
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analyzer.LoadRules(rules.Generate().Builders())
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pkg := testutils.NewTestPackage()
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defer pkg.Close()
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pkg.AddFile("foo.go", `
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package main
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func main()
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}`)
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err := pkg.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = analyzer.Process(buildTags, pkg.Path)
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Expect(err).ShouldNot(HaveOccurred())
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_, _, errors := analyzer.Report()
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Expect(len(errors)).To(Equal(1))
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for _, ferr := range errors {
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Expect(len(ferr)).To(Equal(1))
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Expect(ferr[0].Line).To(Equal(4))
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Expect(ferr[0].Column).To(Equal(5))
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Expect(ferr[0].Err).Should(MatchRegexp(`expected declaration, found '}'`))
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}
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})
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It("should not report errors when a nosec comment is present", func() {
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sample := testutils.SampleCodeG401[0]
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source := sample.Code[0]
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analyzer.LoadRules(rules.Generate(rules.NewRuleFilter(false, "G401")).Builders())
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nosecPackage := testutils.NewTestPackage()
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defer nosecPackage.Close()
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nosecSource := strings.Replace(source, "h := md5.New()", "h := md5.New() // #nosec", 1)
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nosecPackage.AddFile("md5.go", nosecSource)
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err := nosecPackage.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = analyzer.Process(buildTags, nosecPackage.Path)
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Expect(err).ShouldNot(HaveOccurred())
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nosecIssues, _, _ := analyzer.Report()
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Expect(nosecIssues).Should(BeEmpty())
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})
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It("should not report errors when an exclude comment is present for the correct rule", func() {
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// Rule for MD5 weak crypto usage
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sample := testutils.SampleCodeG401[0]
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source := sample.Code[0]
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analyzer.LoadRules(rules.Generate(rules.NewRuleFilter(false, "G401")).Builders())
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nosecPackage := testutils.NewTestPackage()
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defer nosecPackage.Close()
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nosecSource := strings.Replace(source, "h := md5.New()", "h := md5.New() // #nosec G401", 1)
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nosecPackage.AddFile("md5.go", nosecSource)
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err := nosecPackage.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = analyzer.Process(buildTags, nosecPackage.Path)
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Expect(err).ShouldNot(HaveOccurred())
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nosecIssues, _, _ := analyzer.Report()
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Expect(nosecIssues).Should(BeEmpty())
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})
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It("should report errors when an exclude comment is present for a different rule", func() {
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sample := testutils.SampleCodeG401[0]
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source := sample.Code[0]
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analyzer.LoadRules(rules.Generate(rules.NewRuleFilter(false, "G401")).Builders())
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nosecPackage := testutils.NewTestPackage()
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defer nosecPackage.Close()
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nosecSource := strings.Replace(source, "h := md5.New()", "h := md5.New() // #nosec G301", 1)
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nosecPackage.AddFile("md5.go", nosecSource)
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err := nosecPackage.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = analyzer.Process(buildTags, nosecPackage.Path)
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Expect(err).ShouldNot(HaveOccurred())
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nosecIssues, _, _ := analyzer.Report()
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Expect(nosecIssues).Should(HaveLen(sample.Errors))
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})
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It("should not report errors when an exclude comment is present for multiple rules, including the correct rule", func() {
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sample := testutils.SampleCodeG401[0]
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source := sample.Code[0]
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analyzer.LoadRules(rules.Generate(rules.NewRuleFilter(false, "G401")).Builders())
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nosecPackage := testutils.NewTestPackage()
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defer nosecPackage.Close()
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nosecSource := strings.Replace(source, "h := md5.New()", "h := md5.New() // #nosec G301 G401", 1)
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nosecPackage.AddFile("md5.go", nosecSource)
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err := nosecPackage.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = analyzer.Process(buildTags, nosecPackage.Path)
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Expect(err).ShouldNot(HaveOccurred())
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err = analyzer.Process(buildTags, nosecPackage.Path)
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Expect(err).ShouldNot(HaveOccurred())
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nosecIssues, _, _ := analyzer.Report()
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Expect(nosecIssues).Should(BeEmpty())
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})
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It("should pass the build tags", func() {
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sample := testutils.SampleCodeBuildTag[0]
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source := sample.Code[0]
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analyzer.LoadRules(rules.Generate().Builders())
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pkg := testutils.NewTestPackage()
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defer pkg.Close()
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pkg.AddFile("tags.go", source)
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tags := []string{"tag"}
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err := analyzer.Process(tags, pkg.Path)
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Expect(err).ShouldNot(HaveOccurred())
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})
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It("should process an empty package with test file", func() {
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analyzer.LoadRules(rules.Generate().Builders())
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pkg := testutils.NewTestPackage()
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defer pkg.Close()
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pkg.AddFile("foo_test.go", `
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package tests
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import "testing"
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func TestFoo(t *testing.T){
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}`)
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err := pkg.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = analyzer.Process(buildTags, pkg.Path)
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Expect(err).ShouldNot(HaveOccurred())
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})
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It("should be possible to overwrite nosec comments, and report issues", func() {
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// Rule for MD5 weak crypto usage
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sample := testutils.SampleCodeG401[0]
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source := sample.Code[0]
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// overwrite nosec option
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nosecIgnoreConfig := gosec.NewConfig()
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nosecIgnoreConfig.SetGlobal(gosec.Nosec, "true")
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customAnalyzer := gosec.NewAnalyzer(nosecIgnoreConfig, tests, false, logger)
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customAnalyzer.LoadRules(rules.Generate(rules.NewRuleFilter(false, "G401")).Builders())
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nosecPackage := testutils.NewTestPackage()
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defer nosecPackage.Close()
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nosecSource := strings.Replace(source, "h := md5.New()", "h := md5.New() // #nosec", 1)
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nosecPackage.AddFile("md5.go", nosecSource)
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err := nosecPackage.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = customAnalyzer.Process(buildTags, nosecPackage.Path)
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Expect(err).ShouldNot(HaveOccurred())
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nosecIssues, _, _ := customAnalyzer.Report()
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Expect(nosecIssues).Should(HaveLen(sample.Errors))
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})
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XIt("should be possible to overwrite nosec comments, and report issues but the should not be counted", func() {
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// Rule for MD5 weak crypto usage
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sample := testutils.SampleCodeG401[0]
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source := sample.Code[0]
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// overwrite nosec option
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nosecIgnoreConfig := gosec.NewConfig()
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nosecIgnoreConfig.SetGlobal(gosec.Nosec, "true")
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nosecIgnoreConfig.SetGlobal(gosec.ShowIgnored, "true")
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customAnalyzer := gosec.NewAnalyzer(nosecIgnoreConfig, tests, false, logger)
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customAnalyzer.LoadRules(rules.Generate(rules.NewRuleFilter(false, "G401")).Builders())
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nosecPackage := testutils.NewTestPackage()
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defer nosecPackage.Close()
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nosecSource := strings.Replace(source, "h := md5.New()", "h := md5.New() // #nosec", 1)
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nosecPackage.AddFile("md5.go", nosecSource)
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err := nosecPackage.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = customAnalyzer.Process(buildTags, nosecPackage.Path)
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Expect(err).ShouldNot(HaveOccurred())
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nosecIssues, metrics, _ := customAnalyzer.Report()
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Expect(nosecIssues).Should(HaveLen(sample.Errors))
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Expect(metrics.NumFound).Should(Equal(0))
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Expect(metrics.NumNosec).Should(Equal(1))
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})
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It("should be possible to use an alternative nosec tag", func() {
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// Rule for MD5 weak crypto usage
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sample := testutils.SampleCodeG401[0]
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source := sample.Code[0]
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// overwrite nosec option
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nosecIgnoreConfig := gosec.NewConfig()
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nosecIgnoreConfig.SetGlobal(gosec.NoSecAlternative, "#falsePositive")
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customAnalyzer := gosec.NewAnalyzer(nosecIgnoreConfig, tests, false, logger)
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customAnalyzer.LoadRules(rules.Generate(rules.NewRuleFilter(false, "G401")).Builders())
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nosecPackage := testutils.NewTestPackage()
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defer nosecPackage.Close()
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nosecSource := strings.Replace(source, "h := md5.New()", "h := md5.New() // #falsePositive", 1)
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nosecPackage.AddFile("md5.go", nosecSource)
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err := nosecPackage.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = customAnalyzer.Process(buildTags, nosecPackage.Path)
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Expect(err).ShouldNot(HaveOccurred())
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nosecIssues, _, _ := customAnalyzer.Report()
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Expect(nosecIssues).Should(HaveLen(0))
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})
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It("should ignore vulnerabilities when the default tag is found", func() {
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// Rule for MD5 weak crypto usage
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sample := testutils.SampleCodeG401[0]
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source := sample.Code[0]
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// overwrite nosec option
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nosecIgnoreConfig := gosec.NewConfig()
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nosecIgnoreConfig.SetGlobal(gosec.NoSecAlternative, "#falsePositive")
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customAnalyzer := gosec.NewAnalyzer(nosecIgnoreConfig, tests, false, logger)
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customAnalyzer.LoadRules(rules.Generate(rules.NewRuleFilter(false, "G401")).Builders())
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nosecPackage := testutils.NewTestPackage()
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defer nosecPackage.Close()
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nosecSource := strings.Replace(source, "h := md5.New()", "h := md5.New() // #nosec", 1)
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nosecPackage.AddFile("md5.go", nosecSource)
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err := nosecPackage.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = customAnalyzer.Process(buildTags, nosecPackage.Path)
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Expect(err).ShouldNot(HaveOccurred())
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nosecIssues, _, _ := customAnalyzer.Report()
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Expect(nosecIssues).Should(HaveLen(0))
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})
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It("should be able to analyze Go test package", func() {
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customAnalyzer := gosec.NewAnalyzer(nil, true, false, logger)
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customAnalyzer.LoadRules(rules.Generate().Builders())
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pkg := testutils.NewTestPackage()
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defer pkg.Close()
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pkg.AddFile("foo.go", `
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package foo
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func foo(){
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}`)
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pkg.AddFile("foo_test.go", `
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package foo_test
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import "testing"
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func test() error {
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return nil
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}
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func TestFoo(t *testing.T){
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test()
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}`)
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err := pkg.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = customAnalyzer.Process(buildTags, pkg.Path)
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Expect(err).ShouldNot(HaveOccurred())
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issues, _, _ := customAnalyzer.Report()
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Expect(issues).Should(HaveLen(1))
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})
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It("should be able to scan generated files if NOT excluded", func() {
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customAnalyzer := gosec.NewAnalyzer(nil, true, false, logger)
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customAnalyzer.LoadRules(rules.Generate().Builders())
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pkg := testutils.NewTestPackage()
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defer pkg.Close()
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pkg.AddFile("foo.go", `
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package foo
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// Code generated some-generator DO NOT EDIT.
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func test() error {
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return nil
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}
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func TestFoo(t *testing.T){
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test()
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}`)
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err := pkg.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = customAnalyzer.Process(buildTags, pkg.Path)
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Expect(err).ShouldNot(HaveOccurred())
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issues, _, _ := customAnalyzer.Report()
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Expect(issues).Should(HaveLen(1))
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})
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It("should be able to skip generated files if excluded", func() {
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customAnalyzer := gosec.NewAnalyzer(nil, true, true, logger)
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customAnalyzer.LoadRules(rules.Generate().Builders())
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pkg := testutils.NewTestPackage()
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defer pkg.Close()
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pkg.AddFile("foo.go", `
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package foo
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// Code generated some-generator DO NOT EDIT.
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func test() error {
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return nil
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}
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func TestFoo(t *testing.T){
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test()
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}`)
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err := pkg.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = customAnalyzer.Process(buildTags, pkg.Path)
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Expect(err).ShouldNot(HaveOccurred())
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issues, _, _ := customAnalyzer.Report()
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Expect(issues).Should(HaveLen(0))
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})
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})
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It("should be able to analyze Cgo files", func() {
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analyzer.LoadRules(rules.Generate().Builders())
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sample := testutils.SampleCodeCgo[0]
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source := sample.Code[0]
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testPackage := testutils.NewTestPackage()
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defer testPackage.Close()
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testPackage.AddFile("main.go", source)
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err := testPackage.Build()
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Expect(err).ShouldNot(HaveOccurred())
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err = analyzer.Process(buildTags, testPackage.Path)
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Expect(err).ShouldNot(HaveOccurred())
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issues, _, _ := analyzer.Report()
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Expect(issues).Should(HaveLen(0))
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})
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Context("when parsing errors from a package", func() {
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It("should return no error when the error list is empty", func() {
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pkg := &packages.Package{}
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err := analyzer.ParseErrors(pkg)
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Expect(err).ShouldNot(HaveOccurred())
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})
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It("should properly parse the errors", func() {
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pkg := &packages.Package{
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Errors: []packages.Error{
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{
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Pos: "file:1:2",
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Msg: "build error",
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},
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},
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}
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err := analyzer.ParseErrors(pkg)
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Expect(err).ShouldNot(HaveOccurred())
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_, _, errors := analyzer.Report()
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Expect(len(errors)).To(Equal(1))
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for _, ferr := range errors {
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Expect(len(ferr)).To(Equal(1))
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Expect(ferr[0].Line).To(Equal(1))
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Expect(ferr[0].Column).To(Equal(2))
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Expect(ferr[0].Err).Should(MatchRegexp(`build error`))
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}
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})
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It("should properly parse the errors without line and column", func() {
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pkg := &packages.Package{
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Errors: []packages.Error{
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{
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Pos: "file",
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Msg: "build error",
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},
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},
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}
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err := analyzer.ParseErrors(pkg)
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Expect(err).ShouldNot(HaveOccurred())
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_, _, errors := analyzer.Report()
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Expect(len(errors)).To(Equal(1))
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for _, ferr := range errors {
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Expect(len(ferr)).To(Equal(1))
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Expect(ferr[0].Line).To(Equal(0))
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Expect(ferr[0].Column).To(Equal(0))
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Expect(ferr[0].Err).Should(MatchRegexp(`build error`))
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}
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})
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It("should properly parse the errors without column", func() {
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pkg := &packages.Package{
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Errors: []packages.Error{
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{
|
|
Pos: "file",
|
|
Msg: "build error",
|
|
},
|
|
},
|
|
}
|
|
err := analyzer.ParseErrors(pkg)
|
|
Expect(err).ShouldNot(HaveOccurred())
|
|
_, _, errors := analyzer.Report()
|
|
Expect(len(errors)).To(Equal(1))
|
|
for _, ferr := range errors {
|
|
Expect(len(ferr)).To(Equal(1))
|
|
Expect(ferr[0].Line).To(Equal(0))
|
|
Expect(ferr[0].Column).To(Equal(0))
|
|
Expect(ferr[0].Err).Should(MatchRegexp(`build error`))
|
|
}
|
|
})
|
|
|
|
It("should return error when line cannot be parsed", func() {
|
|
pkg := &packages.Package{
|
|
Errors: []packages.Error{
|
|
{
|
|
Pos: "file:line",
|
|
Msg: "build error",
|
|
},
|
|
},
|
|
}
|
|
err := analyzer.ParseErrors(pkg)
|
|
Expect(err).Should(HaveOccurred())
|
|
})
|
|
|
|
It("should return error when column cannot be parsed", func() {
|
|
pkg := &packages.Package{
|
|
Errors: []packages.Error{
|
|
{
|
|
Pos: "file:1:column",
|
|
Msg: "build error",
|
|
},
|
|
},
|
|
}
|
|
err := analyzer.ParseErrors(pkg)
|
|
Expect(err).Should(HaveOccurred())
|
|
})
|
|
|
|
It("should append error to the same file", func() {
|
|
pkg := &packages.Package{
|
|
Errors: []packages.Error{
|
|
{
|
|
Pos: "file:1:2",
|
|
Msg: "error1",
|
|
},
|
|
{
|
|
Pos: "file:3:4",
|
|
Msg: "error2",
|
|
},
|
|
},
|
|
}
|
|
err := analyzer.ParseErrors(pkg)
|
|
Expect(err).ShouldNot(HaveOccurred())
|
|
_, _, errors := analyzer.Report()
|
|
Expect(len(errors)).To(Equal(1))
|
|
for _, ferr := range errors {
|
|
Expect(len(ferr)).To(Equal(2))
|
|
Expect(ferr[0].Line).To(Equal(1))
|
|
Expect(ferr[0].Column).To(Equal(2))
|
|
Expect(ferr[0].Err).Should(MatchRegexp(`error1`))
|
|
Expect(ferr[1].Line).To(Equal(3))
|
|
Expect(ferr[1].Column).To(Equal(4))
|
|
Expect(ferr[1].Err).Should(MatchRegexp(`error2`))
|
|
}
|
|
})
|
|
|
|
It("should set the config", func() {
|
|
config := gosec.NewConfig()
|
|
config["test"] = "test"
|
|
analyzer.SetConfig(config)
|
|
found := analyzer.Config()
|
|
Expect(config).To(Equal(found))
|
|
})
|
|
|
|
It("should reset the analyzer", func() {
|
|
analyzer.Reset()
|
|
issues, metrics, errors := analyzer.Report()
|
|
Expect(issues).To(BeEmpty())
|
|
Expect(*metrics).To(Equal(gosec.Metrics{}))
|
|
Expect(errors).To(BeEmpty())
|
|
})
|
|
})
|
|
|
|
Context("when appending errors", func() {
|
|
It("should skip error for non-buildable packages", func() {
|
|
analyzer.AppendError("test", errors.New(`loading file from package "pkg/test": no buildable Go source files in pkg/test`))
|
|
_, _, errors := analyzer.Report()
|
|
Expect(len(errors)).To(Equal(0))
|
|
})
|
|
|
|
It("should add a new error", func() {
|
|
pkg := &packages.Package{
|
|
Errors: []packages.Error{
|
|
{
|
|
Pos: "file:1:2",
|
|
Msg: "build error",
|
|
},
|
|
},
|
|
}
|
|
err := analyzer.ParseErrors(pkg)
|
|
Expect(err).ShouldNot(HaveOccurred())
|
|
analyzer.AppendError("file", errors.New("file build error"))
|
|
_, _, errors := analyzer.Report()
|
|
Expect(len(errors)).To(Equal(1))
|
|
for _, ferr := range errors {
|
|
Expect(len(ferr)).To(Equal(2))
|
|
}
|
|
})
|
|
})
|
|
})
|