pomerium/config/identity.go
Joe Kralicky 56ba07e53e
Optimize policy iterators (#5184)
* Optimize policy iterators (go1.23)

This modifies (*Options).GetAllPolicies() to use a go 1.23 iterator
instead of copying all policies on every call, which can be extremely
expensive. All existing usages of this function were updated as
necessary.

Additionally, a new (*Options).NumPolicies() method was added which
quickly computes the number of policies that would be given by
GetAllPolicies(), since there were several usages where only the
number of policies was needed.

* Fix race condition when assigning default envoy opts to a policy
2024-08-20 12:35:10 -04:00

71 lines
2 KiB
Go

package config
import (
"github.com/pomerium/pomerium/internal/urlutil"
"github.com/pomerium/pomerium/pkg/grpc/identity"
)
// GetIdentityProviderForID returns the identity provider associated with the given IDP id.
// If none is found the default provider is returned.
func (o *Options) GetIdentityProviderForID(idpID string) (*identity.Provider, error) {
for p := range o.GetAllPolicies() {
idp, err := o.GetIdentityProviderForPolicy(p)
if err != nil {
return nil, err
}
if idp.GetId() == idpID {
return idp, nil
}
}
return o.GetIdentityProviderForPolicy(nil)
}
// GetIdentityProviderForPolicy gets the identity provider associated with the given policy.
// If policy is nil, or changes none of the default settings, the default provider is returned.
func (o *Options) GetIdentityProviderForPolicy(policy *Policy) (*identity.Provider, error) {
clientSecret, err := o.GetClientSecret()
if err != nil {
return nil, err
}
authenticateURL, err := o.GetAuthenticateURL()
if err != nil {
return nil, err
}
idp := &identity.Provider{
AuthenticateServiceUrl: authenticateURL.String(),
ClientId: o.ClientID,
ClientSecret: clientSecret,
Type: o.Provider,
Scopes: o.Scopes,
Url: o.ProviderURL,
RequestParams: o.RequestParams,
}
if policy != nil {
if policy.IDPClientID != "" {
idp.ClientId = policy.IDPClientID
}
if policy.IDPClientSecret != "" {
idp.ClientSecret = policy.IDPClientSecret
}
}
idp.Id = idp.Hash()
return idp, nil
}
// GetIdentityProviderForRequestURL gets the identity provider associated with the given request URL.
func (o *Options) GetIdentityProviderForRequestURL(requestURL string) (*identity.Provider, error) {
u, err := urlutil.ParseAndValidateURL(requestURL)
if err != nil {
return nil, err
}
for p := range o.GetAllPolicies() {
if p.Matches(*u, o.IsRuntimeFlagSet(RuntimeFlagMatchAnyIncomingPort)) {
return o.GetIdentityProviderForPolicy(p)
}
}
return o.GetIdentityProviderForPolicy(nil)
}