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issuer.go
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issuer.go
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package toolbox
import (
"errors"
"net/url"
"regexp"
"strings"
"github.com/cloudtrust/keycloak-client/v2"
)
// IssuerManager provides URL according to a given context
type IssuerManager interface {
GetOidcVerifierProvider(issuer string) (OidcVerifierProvider, error)
}
type issuerManager struct {
domainToVerifier map[string]OidcVerifierProvider
}
func getProtocolAndDomain(URL string) string {
var r = regexp.MustCompile(`^\w+:\/\/[^\/]+`)
var match = r.FindStringSubmatch(URL)
if match != nil {
return strings.ToLower(match[0])
}
// Best effort: if not found return the whole input string
return URL
}
// NewIssuerManager creates a new URLProvider
func NewIssuerManager(config keycloak.Config) (IssuerManager, error) {
if err := ImportLegacyAddrTokenProvider(&config); err != nil {
return nil, err
}
var domainToVerifier = make(map[string]OidcVerifierProvider)
for _, value := range config.URIProvider.GetAllBaseURIs() {
uToken, err := url.Parse(value)
if err != nil {
return nil, err
}
verifier := NewVerifierCache(uToken)
domainToVerifier[getProtocolAndDomain(value)] = verifier
}
return &issuerManager{
domainToVerifier: domainToVerifier,
}, nil
}
func (im *issuerManager) GetOidcVerifierProvider(issuer string) (OidcVerifierProvider, error) {
issuerDomain := getProtocolAndDomain(issuer)
if verifier, ok := im.domainToVerifier[issuerDomain]; ok {
return verifier, nil
}
return nil, errors.New("unknownIssuer")
}