103 lines
3.0 KiB
Go
103 lines
3.0 KiB
Go
package validator
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import (
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"fmt"
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"net"
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"regexp"
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"strings"
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"github.com/authelia/authelia/internal/configuration/schema"
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"github.com/authelia/authelia/internal/utils"
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)
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// IsPolicyValid check if policy is valid.
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func IsPolicyValid(policy string) bool {
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return policy == denyPolicy || policy == "one_factor" || policy == "two_factor" || policy == "bypass"
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}
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// IsResourceValid check if a resource is valid.
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func IsResourceValid(resource string) error {
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_, err := regexp.Compile(resource)
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return err
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}
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// IsSubjectValid check if a subject is valid.
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func IsSubjectValid(subject string) bool {
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return subject == "" || strings.HasPrefix(subject, "user:") || strings.HasPrefix(subject, "group:")
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}
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// IsNetworkGroupValid check if a network group is valid.
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func IsNetworkGroupValid(configuration schema.AccessControlConfiguration, network string) bool {
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for _, networks := range configuration.Networks {
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if !utils.IsStringInSlice(network, networks.Name) {
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continue
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} else {
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return true
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}
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}
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return false
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}
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// IsNetworkValid check if a network is valid.
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func IsNetworkValid(network string) bool {
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if net.ParseIP(network) == nil {
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_, _, err := net.ParseCIDR(network)
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return err == nil
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}
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return true
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}
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// ValidateAccessControl validates access control configuration.
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func ValidateAccessControl(configuration schema.AccessControlConfiguration, validator *schema.StructValidator) {
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if !IsPolicyValid(configuration.DefaultPolicy) {
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validator.Push(fmt.Errorf("'default_policy' must either be 'deny', 'two_factor', 'one_factor' or 'bypass'"))
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}
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if configuration.Networks != nil {
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for _, n := range configuration.Networks {
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for _, networks := range n.Networks {
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if !IsNetworkValid(networks) {
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validator.Push(fmt.Errorf("Network %s from network group: %s must be a valid IP or CIDR", n.Networks, n.Name))
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}
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}
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}
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}
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}
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// ValidateRules validates an ACL Rule configuration.
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func ValidateRules(configuration schema.AccessControlConfiguration, validator *schema.StructValidator) {
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for _, r := range configuration.Rules {
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if len(r.Domains) == 0 {
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validator.Push(fmt.Errorf("No access control rules have been defined"))
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}
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if !IsPolicyValid(r.Policy) {
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validator.Push(fmt.Errorf("Policy [%s] for domain: %s is invalid, a policy must either be 'deny', 'two_factor', 'one_factor' or 'bypass'", r.Policy, r.Domains))
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}
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for _, network := range r.Networks {
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if !IsNetworkValid(network) {
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if !IsNetworkGroupValid(configuration, network) {
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validator.Push(fmt.Errorf("Network %s for domain: %s is not a valid network or network group", r.Networks, r.Domains))
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}
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}
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}
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for _, resource := range r.Resources {
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if err := IsResourceValid(resource); err != nil {
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validator.Push(fmt.Errorf("Resource %s for domain: %s is invalid, %s", r.Resources, r.Domains, err))
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}
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}
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for _, subjectRule := range r.Subjects {
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for _, subject := range subjectRule {
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if !IsSubjectValid(subject) {
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validator.Push(fmt.Errorf("Subject %s for domain: %s must start with 'user:' or 'group:'", subjectRule, r.Domains))
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}
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}
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}
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}
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}
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