ingress-nginx-helm/internal/ingress/inspector/rules.go
Ricardo Katz bd1eb048b7
Improve path rule (#8623)
* Improve path rule

* Add nginx configuration tests

* Revert framework changes

* Add test to patched directives

* Fix root conf test

* Add comment in new function
2022-05-26 06:23:24 -07:00

53 lines
1.4 KiB
Go

/*
Copyright 2022 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package inspector
import (
"fmt"
"regexp"
)
var (
invalidAliasDirective = regexp.MustCompile(`(?s)\s*alias\s*.*;`)
invalidRootDirective = regexp.MustCompile(`(?s)\s*root\s*.*;`)
invalidEtcDir = regexp.MustCompile(`/etc/(passwd|shadow|group|nginx|ingress-controller)`)
invalidSecretsDir = regexp.MustCompile(`/var/run/secrets`)
invalidByLuaDirective = regexp.MustCompile(`.*_by_lua.*`)
invalidRegex = []regexp.Regexp{}
)
func init() {
invalidRegex = []regexp.Regexp{
*invalidAliasDirective,
*invalidRootDirective,
*invalidEtcDir,
*invalidSecretsDir,
*invalidByLuaDirective,
}
}
// CheckRegex receives a value/configuration and validates if it matches with one of the
// forbidden regexes.
func CheckRegex(value string) error {
for _, regex := range invalidRegex {
if regex.MatchString(value) {
return fmt.Errorf("invalid value found: %s", value)
}
}
return nil
}