vshn/appuio-keycloak-adapter

package keycloak

import "github.com/Nerzal/gocloak/v13"

const (
    // KeycloakDefaultOrganizationRef references the keycloak user attribute.
    // TODO(bastjan) If we add more attributes I'd use struct tags struct{ DefaultOrganizationRef string `kcattr:"appuio.io/default-organization"` }
    KeycloakDefaultOrganizationRef = "appuio.io/default-organization"
)

// User is a representation of a user in keycloak
type User struct {
    ID string
    // Username is the .metadata.name in kubernetes and the .Username field in Keycloak
    Username string

    Email     string
    FirstName string
    LastName  string

    DefaultOrganizationRef string
}

// UserFromKeycloakUser returns a user with attributes mapped from the given keycloak user
func UserFromKeycloakUser(u gocloak.User) User {
    r := User{}
    if u.ID != nil {
        r.ID = *u.ID
    }
    if u.Username != nil {
        r.Username = *u.Username
    }
    if u.Email != nil {
        r.Email = *u.Email
    }
    if u.FirstName != nil {
        r.FirstName = *u.FirstName
    }
    if u.LastName != nil {
        r.LastName = *u.LastName
    }

    if u.Attributes != nil {
        if ref, ok := (*u.Attributes)[KeycloakDefaultOrganizationRef]; ok && len(ref) > 0 {
            r.DefaultOrganizationRef = ref[0]
        }
    }

    return r
}

// DisplayName returns the disply name of this user
func (u User) DisplayName() string {
    if u.FirstName == "" {
        return u.LastName
    }
    if u.LastName == "" {
        return u.FirstName
    }

    return u.FirstName + " " + u.LastName
}

// ApplyTo sets attributes from this user to the given gocloak.User
func (u User) ApplyTo(tu *gocloak.User) {
    if u.ID != "" {
        tu.ID = &u.ID
    }
    if u.Username != "" {
        tu.Username = &u.Username
    }
    if u.Email != "" {
        tu.Email = &u.Email
    }
    if u.FirstName != "" {
        tu.FirstName = &u.FirstName
    }
    if u.LastName != "" {
        tu.LastName = &u.LastName
    }

    if u.DefaultOrganizationRef != "" {
        if tu.Attributes == nil {
            attr := make(map[string][]string)
            tu.Attributes = &attr
        }

        (*tu.Attributes)[KeycloakDefaultOrganizationRef] = []string{u.DefaultOrganizationRef}
    }
}