nuclei/v2/pkg/catalog/path.go

69 lines
1.9 KiB
Go

package catalog
import (
"fmt"
"os"
"path/filepath"
"github.com/pkg/errors"
"github.com/projectdiscovery/folderutil"
)
// ResolvePath resolves the path to an absolute one in various ways.
//
// It checks if the filename is an absolute path, looks in the current directory
// or checking the nuclei templates directory. If a second path is given,
// it also tries to find paths relative to that second path.
func (c *Catalog) ResolvePath(templateName, second string) (string, error) {
if filepath.IsAbs(templateName) {
return templateName, nil
}
if second != "" {
secondBasePath := filepath.Join(filepath.Dir(second), templateName)
if potentialPath, err := c.tryResolve(secondBasePath); err != errNoValidCombination {
return potentialPath, nil
}
}
curDirectory, err := os.Getwd()
if err != nil {
return "", err
}
templatePath := filepath.Join(curDirectory, templateName)
if potentialPath, err := c.tryResolve(templatePath); err != errNoValidCombination {
return potentialPath, nil
}
if c.templatesDirectory != "" {
templatePath := filepath.Join(c.templatesDirectory, templateName)
if potentialPath, err := c.tryResolve(templatePath); err != errNoValidCombination {
return potentialPath, nil
}
}
return "", fmt.Errorf("no such path found: %s", templateName)
}
var errNoValidCombination = errors.New("no valid combination found")
// tryResolve attempts to load locate the target by iterating across all the folders tree
func (c *Catalog) tryResolve(fullpath string) (string, error) {
dir, filename := filepath.Split(fullpath)
pathInfo, err := folderutil.NewPathInfo(dir)
if err != nil {
return "", err
}
pathInfoItems, err := pathInfo.MeshWith(filename)
if err != nil {
return "", err
}
for _, pathInfoItem := range pathInfoItems {
if _, err := os.Stat(pathInfoItem); !os.IsNotExist(err) {
return pathInfoItem, nil
}
}
return "", errNoValidCombination
}