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g104_samples.go
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g104_samples.go
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package testutils
import "github.com/securego/gosec/v2"
var (
// SampleCodeG104 finds errors that aren't being handled
SampleCodeG104 = []CodeSample{
{[]string{`
package main
import "fmt"
func test() (int,error) {
return 0, nil
}
func main() {
v, _ := test()
fmt.Println(v)
}
`}, 0, gosec.NewConfig()},
{[]string{`
package main
import (
"io/ioutil"
"os"
"fmt"
)
func a() error {
return fmt.Errorf("This is an error")
}
func b() {
fmt.Println("b")
ioutil.WriteFile("foo.txt", []byte("bar"), os.ModeExclusive)
}
func c() string {
return fmt.Sprintf("This isn't anything")
}
func main() {
_ = a()
a()
b()
c()
}
`}, 2, gosec.NewConfig()},
{[]string{`
package main
import "fmt"
func test() error {
return nil
}
func main() {
e := test()
fmt.Println(e)
}
`}, 0, gosec.NewConfig()},
{[]string{`
// +build go1.10
package main
import "strings"
func main() {
var buf strings.Builder
_, err := buf.WriteString("test string")
if err != nil {
panic(err)
}
}`, `
package main
func dummy(){}
`}, 0, gosec.NewConfig()},
{[]string{`
package main
import (
"bytes"
)
type a struct {
buf *bytes.Buffer
}
func main() {
a := &a{
buf: new(bytes.Buffer),
}
a.buf.Write([]byte{0})
}
`}, 0, gosec.NewConfig()},
{[]string{`
package main
import (
"io/ioutil"
"os"
"fmt"
)
func a() {
fmt.Println("a")
ioutil.WriteFile("foo.txt", []byte("bar"), os.ModeExclusive)
}
func main() {
a()
}
`}, 0, gosec.Config{"G104": map[string]interface{}{"ioutil": []interface{}{"WriteFile"}}}},
{[]string{`
package main
import (
"bytes"
"fmt"
"io"
"os"
"strings"
)
func createBuffer() *bytes.Buffer {
return new(bytes.Buffer)
}
func main() {
new(bytes.Buffer).WriteString("*bytes.Buffer")
fmt.Fprintln(os.Stderr, "fmt")
new(strings.Builder).WriteString("*strings.Builder")
_, pw := io.Pipe()
pw.CloseWithError(io.EOF)
createBuffer().WriteString("*bytes.Buffer")
b := createBuffer()
b.WriteString("*bytes.Buffer")
}
`}, 0, gosec.NewConfig()},
} // it shouldn't return any errors because all method calls are whitelisted by default
// SampleCodeG104Audit finds errors that aren't being handled in audit mode
SampleCodeG104Audit = []CodeSample{
{[]string{`
package main
import "fmt"
func test() (int,error) {
return 0, nil
}
func main() {
v, _ := test()
fmt.Println(v)
}
`}, 1, gosec.Config{gosec.Globals: map[gosec.GlobalOption]string{gosec.Audit: "enabled"}}},
{[]string{`
package main
import (
"io/ioutil"
"os"
"fmt"
)
func a() error {
return fmt.Errorf("This is an error")
}
func b() {
fmt.Println("b")
ioutil.WriteFile("foo.txt", []byte("bar"), os.ModeExclusive)
}
func c() string {
return fmt.Sprintf("This isn't anything")
}
func main() {
_ = a()
a()
b()
c()
}
`}, 3, gosec.Config{gosec.Globals: map[gosec.GlobalOption]string{gosec.Audit: "enabled"}}},
{[]string{`
package main
import "fmt"
func test() error {
return nil
}
func main() {
e := test()
fmt.Println(e)
}
`}, 0, gosec.Config{gosec.Globals: map[gosec.GlobalOption]string{gosec.Audit: "enabled"}}},
{[]string{`
// +build go1.10
package main
import "strings"
func main() {
var buf strings.Builder
_, err := buf.WriteString("test string")
if err != nil {
panic(err)
}
}
`, `
package main
func dummy(){}
`}, 0, gosec.Config{gosec.Globals: map[gosec.GlobalOption]string{gosec.Audit: "enabled"}}},
}
)