authelia/internal/authorization/authorizer.go

52 lines
1.4 KiB
Go

package authorization
import (
"github.com/authelia/authelia/internal/configuration/schema"
"github.com/authelia/authelia/internal/logging"
)
// Authorizer the component in charge of checking whether a user can access a given resource.
type Authorizer struct {
defaultPolicy Level
rules []*AccessControlRule
}
// NewAuthorizer create an instance of authorizer with a given access control configuration.
func NewAuthorizer(configuration schema.AccessControlConfiguration) *Authorizer {
return &Authorizer{
defaultPolicy: PolicyToLevel(configuration.DefaultPolicy),
rules: NewAccessControlRules(configuration),
}
}
// IsSecondFactorEnabled return true if at least one policy is set to second factor.
func (p *Authorizer) IsSecondFactorEnabled() bool {
if p.defaultPolicy == TwoFactor {
return true
}
for _, rule := range p.rules {
if rule.Policy == TwoFactor {
return true
}
}
return false
}
// GetRequiredLevel retrieve the required level of authorization to access the object.
func (p *Authorizer) GetRequiredLevel(subject Subject, object Object) Level {
logger := logging.Logger()
logger.Tracef("Check authorization of subject %s and url %s.", subject.String(), object.String())
for _, rule := range p.rules {
if rule.IsMatch(subject, object) {
return rule.Policy
}
}
logger.Tracef("No matching rule for subject %s and url %s... Applying default policy.", subject.String(), object.String())
return p.defaultPolicy
}