nuclei/v2/pkg/protocols/common/generators/validate.go

65 lines
1.5 KiB
Go

package generators
import (
"errors"
"fmt"
"os"
"path"
"strings"
"github.com/projectdiscovery/nuclei/v2/pkg/types"
)
// validate validates the payloads if any.
func (g *Generator) validate(payloads map[string]interface{}, templatePath string) error {
for name, payload := range payloads {
switch pt := payload.(type) {
case string:
// check if it's a multiline string list
if len(strings.Split(pt, "\n")) != 1 {
return errors.New("invalid number of lines in payload")
}
// check if it's a worldlist file and try to load it
if fileExists(pt) {
continue
}
changed := false
pathTokens := strings.Split(templatePath, "/")
for i := range pathTokens {
tpath := path.Join(strings.Join(pathTokens[:i], "/"), pt)
if fileExists(tpath) {
payloads[name] = tpath
changed = true
break
}
}
if !changed {
return fmt.Errorf("the %s file for payload %s does not exist or does not contain enough elements", pt, name)
}
case interface{}:
loadedPayloads := types.ToStringSlice(pt)
if len(loadedPayloads) == 0 {
return fmt.Errorf("the payload %s does not contain enough elements", name)
}
default:
return fmt.Errorf("the payload %s has invalid type", name)
}
}
return nil
}
// fileExists checks if a file exists and is not a directory
func fileExists(filename string) bool {
info, err := os.Stat(filename)
if os.IsNotExist(err) {
return false
}
if info == nil {
return false
}
return !info.IsDir()
}