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package oidc
import (
"net/url"
"time"
oauthelia2 "authelia.com/provider/oauth2"
"authelia.com/provider/oauth2/handler/openid"
"authelia.com/provider/oauth2/token/jwt"
"github.com/google/uuid"
"github.com/mohae/deepcopy"
"github.com/authelia/authelia/v4/internal/model"
)
// NewSession creates a new empty OpenIDSession struct.
func NewSession() (session *Session) {
return &Session{
DefaultSession: &openid.DefaultSession{
Claims: &jwt.IDTokenClaims{
Extra: map[string]any{},
},
Headers: &jwt.Headers{
Extra: map[string]any{},
},
},
Extra: map[string]any{},
}
}
// NewSessionWithRequester uses details from a Requester to generate an OpenIDSession.
func NewSessionWithRequester(ctx Context, issuer *url.URL, kid, username string, amr []string, extra map[string]any,
authTime time.Time, consent *model.OAuth2ConsentSession, requester oauthelia2.Requester, claims *ClaimsRequests) (session *Session) {
if extra == nil {
extra = map[string]any{}
}
session = &Session{
DefaultSession: &openid.DefaultSession{
Claims: &jwt.IDTokenClaims{
Issuer: issuer.String(),
Subject: consent.Subject.UUID.String(),
IssuedAt: jwt.NewNumericDate(ctx.GetClock().Now()),
AuthTime: jwt.NewNumericDate(authTime),
RequestedAt: jwt.NewNumericDate(consent.RequestedAt),
Nonce: requester.GetRequestForm().Get(ClaimNonce),
Extra: extra,
AuthenticationMethodsReferences: amr,
AuthorizedParty: requester.GetClient().GetID(),
},
Headers: &jwt.Headers{
Extra: map[string]any{
JWTHeaderKeyIdentifier: kid,
},
},
Subject: consent.Subject.UUID.String(),
Username: username,
},
ChallengeID: model.NullUUID(consent.ChallengeID),
ClientID: requester.GetClient().GetID(),
ExcludeNotBeforeClaim: false,
AllowedTopLevelClaims: nil,
ClaimRequests: claims,
GrantedClaims: consent.GrantedClaims,
Extra: map[string]any{},
}
return session
}
// Session holds OpenID Connect 1.0 Session information.
type Session struct {
*openid.DefaultSession `json:"id_token"`
ChallengeID uuid.NullUUID `json:"challenge_id"`
KID string `json:"kid"`
ClientID string `json:"client_id"`
ClientCredentials bool `json:"client_credentials"`
ExcludeNotBeforeClaim bool `json:"exclude_nbf_claim"`
AllowedTopLevelClaims []string `json:"allowed_top_level_claims"`
ClaimRequests *ClaimsRequests `json:"claim_requests,omitempty"`
GrantedClaims []string `json:"granted_claims,omitempty"`
Extra map[string]any `json:"extra"`
}
// GetChallengeID returns the challenge id.
func (s *Session) GetChallengeID() (challenge uuid.NullUUID) {
return s.ChallengeID
}
// GetJWTHeader returns the *jwt.Headers for the OAuth 2.0 JWT Profile Access Token.
func (s *Session) GetJWTHeader() (headers *jwt.Headers) {
headers = &jwt.Headers{
Extra: map[string]any{
JWTHeaderKeyType: JWTHeaderTypeValueAccessTokenJWT,
},
}
if len(s.KID) != 0 {
headers.Extra[JWTHeaderKeyIdentifier] = s.KID
}
return headers
}
// GetJWTClaims returns the jwt.JWTClaimsContainer for the OAuth 2.0 JWT Profile Access Tokens.
func (s *Session) GetJWTClaims() jwt.JWTClaimsContainer {
//nolint:prealloc
var (
allowed []string
amr bool
)
for _, cl := range s.AllowedTopLevelClaims {
switch cl {
case ClaimJWTID, ClaimIssuer, ClaimSubject, ClaimAudience, ClaimExpirationTime, ClaimNotBefore, ClaimIssuedAt, ClaimClientIdentifier, ClaimScopeNonStandard, ClaimExtra:
continue
case ClaimAuthenticationMethodsReference:
amr = true
continue
}
allowed = append(allowed, cl)
}
claims := &jwt.JWTClaims{
Subject: s.Subject,
ExpiresAt: s.GetExpiresAt(oauthelia2.AccessToken),
IssuedAt: time.Now().UTC(),
Extra: map[string]any{},
}
if len(s.Extra) > 0 {
claims.Extra[ClaimExtra] = s.Extra
}
if s.DefaultSession != nil && s.DefaultSession.Claims != nil {
for _, allowedClaim := range allowed {
if cl, ok := s.DefaultSession.Claims.Extra[allowedClaim]; ok {
claims.Extra[allowedClaim] = cl
}
}
claims.Issuer = s.DefaultSession.Claims.Issuer
if amr && len(s.DefaultSession.Claims.AuthenticationMethodsReferences) != 0 {
claims.Extra[ClaimAuthenticationMethodsReference] = s.DefaultSession.Claims.AuthenticationMethodsReferences
}
}
if len(s.ClientID) != 0 {
claims.Extra[ClaimClientIdentifier] = s.ClientID
}
return claims
}
// GetIDTokenClaims returns the *jwt.IDTokenClaims for this session.
func (s *Session) GetIDTokenClaims() (claims *jwt.IDTokenClaims) {
if s.DefaultSession == nil {
return nil
}
return s.DefaultSession.Claims
}
// GetExtraClaims returns the Extra/Unregistered claims for this session.
func (s *Session) GetExtraClaims() map[string]any {
return s.Extra
}
// Clone copies the OpenIDSession to a new oauthelia2.Session.
func (s *Session) Clone() oauthelia2.Session {
if s == nil {
return nil
}
return deepcopy.Copy(s).(oauthelia2.Session)
}
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