crowdsec/pkg/hubtest/appsecrule.go
mmetc 8de8bf0e06
pkg/hubtest: extract methods + consistent error handling (#2756)
* pkg/hubtest: extract methods + consistent error handling
* lint
* rename variables for further refactor
2024-02-14 11:53:12 +01:00

100 lines
3.2 KiB
Go

package hubtest
import (
"fmt"
"os"
"path/filepath"
"strings"
log "github.com/sirupsen/logrus"
"github.com/crowdsecurity/crowdsec/pkg/cwhub"
)
func (t *HubTestItem) installAppsecRuleItem(item *cwhub.Item) error {
sourcePath, err := filepath.Abs(filepath.Join(t.HubPath, item.RemotePath))
if err != nil {
return fmt.Errorf("can't get absolute path of '%s': %w", sourcePath, err)
}
sourceFilename := filepath.Base(sourcePath)
// runtime/hub/appsec-rules/author/appsec-rule
hubDirAppsecRuleDest := filepath.Join(t.RuntimeHubPath, filepath.Dir(item.RemotePath))
// runtime/appsec-rules/
itemTypeDirDest := fmt.Sprintf("%s/appsec-rules/", t.RuntimePath)
if err := os.MkdirAll(hubDirAppsecRuleDest, os.ModePerm); err != nil {
return fmt.Errorf("unable to create folder '%s': %w", hubDirAppsecRuleDest, err)
}
if err := os.MkdirAll(itemTypeDirDest, os.ModePerm); err != nil {
return fmt.Errorf("unable to create folder '%s': %w", itemTypeDirDest, err)
}
// runtime/hub/appsec-rules/crowdsecurity/rule.yaml
hubDirAppsecRulePath := filepath.Join(itemTypeDirDest, sourceFilename)
if err := Copy(sourcePath, hubDirAppsecRulePath); err != nil {
return fmt.Errorf("unable to copy '%s' to '%s': %w", sourcePath, hubDirAppsecRulePath, err)
}
// runtime/appsec-rules/rule.yaml
appsecRulePath := filepath.Join(itemTypeDirDest, sourceFilename)
if err := os.Symlink(hubDirAppsecRulePath, appsecRulePath); err != nil {
if !os.IsExist(err) {
return fmt.Errorf("unable to symlink appsec-rule '%s' to '%s': %w", hubDirAppsecRulePath, appsecRulePath, err)
}
}
return nil
}
func (t *HubTestItem) installAppsecRuleCustomFrom(appsecrule string, customPath string) (bool, error) {
// we check if its a custom appsec-rule
customAppsecRulePath := filepath.Join(customPath, appsecrule)
if _, err := os.Stat(customAppsecRulePath); os.IsNotExist(err) {
return false, nil
}
customAppsecRulePathSplit := strings.Split(customAppsecRulePath, "/")
customAppsecRuleName := customAppsecRulePathSplit[len(customAppsecRulePathSplit)-1]
itemTypeDirDest := fmt.Sprintf("%s/appsec-rules/", t.RuntimePath)
if err := os.MkdirAll(itemTypeDirDest, os.ModePerm); err != nil {
return false, fmt.Errorf("unable to create folder '%s': %w", itemTypeDirDest, err)
}
customAppsecRuleDest := fmt.Sprintf("%s/appsec-rules/%s", t.RuntimePath, customAppsecRuleName)
if err := Copy(customAppsecRulePath, customAppsecRuleDest); err != nil {
return false, fmt.Errorf("unable to copy appsec-rule from '%s' to '%s': %w", customAppsecRulePath, customAppsecRuleDest, err)
}
return true, nil
}
func (t *HubTestItem) installAppsecRuleCustom(appsecrule string) error {
for _, customPath := range t.CustomItemsLocation {
found, err := t.installAppsecRuleCustomFrom(appsecrule, customPath)
if err != nil {
return err
}
if found {
return nil
}
}
return fmt.Errorf("couldn't find custom appsec-rule '%s' in the following location: %+v", appsecrule, t.CustomItemsLocation)
}
func (t *HubTestItem) installAppsecRule(name string) error {
log.Debugf("adding rule '%s'", name)
if item := t.HubIndex.GetItem(cwhub.APPSEC_RULES, name); item != nil {
return t.installAppsecRuleItem(item)
}
return t.installAppsecRuleCustom(name)
}