forked from TrueCloudLab/certificates
105 lines
3.7 KiB
Go
105 lines
3.7 KiB
Go
package provisioner
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import (
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"time"
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"github.com/pkg/errors"
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)
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// Claims so that individual provisioners can override global claims.
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type Claims struct {
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MinTLSDur *Duration `json:"minTLSCertDuration,omitempty"`
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MaxTLSDur *Duration `json:"maxTLSCertDuration,omitempty"`
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DefaultTLSDur *Duration `json:"defaultTLSCertDuration,omitempty"`
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DisableRenewal *bool `json:"disableRenewal,omitempty"`
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}
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// Claimer is the type that controls claims. It provides an interface around the
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// current claim and the global one.
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type Claimer struct {
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global Claims
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claims *Claims
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}
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// NewClaimer initializes a new claimer with the given claims.
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func NewClaimer(claims *Claims, global Claims) (*Claimer, error) {
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c := &Claimer{global: global, claims: claims}
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return c, c.Validate()
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}
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// Claims returns the merge of the inner and global claims.
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func (c *Claimer) Claims() Claims {
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disableRenewal := c.IsDisableRenewal()
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return Claims{
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MinTLSDur: &Duration{c.MinTLSCertDuration()},
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MaxTLSDur: &Duration{c.MaxTLSCertDuration()},
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DefaultTLSDur: &Duration{c.DefaultTLSCertDuration()},
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DisableRenewal: &disableRenewal,
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}
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}
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// DefaultTLSCertDuration returns the default TLS cert duration for the
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// provisioner. If the default is not set within the provisioner, then the global
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// default from the authority configuration will be used.
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func (c *Claimer) DefaultTLSCertDuration() time.Duration {
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if c.claims == nil || c.claims.DefaultTLSDur == nil {
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return c.global.DefaultTLSDur.Duration
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}
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return c.claims.DefaultTLSDur.Duration
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}
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// MinTLSCertDuration returns the minimum TLS cert duration for the provisioner.
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// If the minimum is not set within the provisioner, then the global
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// minimum from the authority configuration will be used.
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func (c *Claimer) MinTLSCertDuration() time.Duration {
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if c.claims == nil || c.claims.MinTLSDur == nil {
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return c.global.MinTLSDur.Duration
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}
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return c.claims.MinTLSDur.Duration
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}
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// MaxTLSCertDuration returns the maximum TLS cert duration for the provisioner.
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// If the maximum is not set within the provisioner, then the global
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// maximum from the authority configuration will be used.
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func (c *Claimer) MaxTLSCertDuration() time.Duration {
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if c.claims == nil || c.claims.MaxTLSDur == nil {
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return c.global.MaxTLSDur.Duration
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}
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return c.claims.MaxTLSDur.Duration
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}
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// IsDisableRenewal returns if the renewal flow is disabled for the
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// provisioner. If the property is not set within the provisioner, then the
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// global value from the authority configuration will be used.
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func (c *Claimer) IsDisableRenewal() bool {
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if c.claims == nil || c.claims.DisableRenewal == nil {
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return *c.global.DisableRenewal
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}
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return *c.claims.DisableRenewal
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}
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// Validate validates and modifies the Claims with default values.
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func (c *Claimer) Validate() error {
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var (
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min = c.MinTLSCertDuration()
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max = c.MaxTLSCertDuration()
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def = c.DefaultTLSCertDuration()
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)
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switch {
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case min <= 0:
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return errors.Errorf("claims: MinTLSCertDuration must be greater than 0")
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case max <= 0:
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return errors.Errorf("claims: MaxTLSCertDuration must be greater than 0")
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case def <= 0:
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return errors.Errorf("claims: DefaultTLSCertDuration must be greater than 0")
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case max < min:
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return errors.Errorf("claims: MaxCertDuration cannot be less "+
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"than MinCertDuration: MaxCertDuration - %v, MinCertDuration - %v", max, min)
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case def < min:
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return errors.Errorf("claims: DefaultCertDuration cannot be less than MinCertDuration: DefaultCertDuration - %v, MinCertDuration - %v", def, min)
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case max < def:
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return errors.Errorf("claims: MaxCertDuration cannot be less than DefaultCertDuration: MaxCertDuration - %v, DefaultCertDuration - %v", max, def)
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default:
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return nil
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}
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}
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