authelia/internal/handlers/handler_oidc_consent.go
James Elliott ef549f851d
feat(oidc): add additional config options, accurate token times, and refactoring (#1991)
* This gives admins more control over their OIDC installation exposing options that had defaults before. Things like lifespans for authorize codes, access tokens, id tokens, refresh tokens, a option to enable the debug client messages, minimum parameter entropy. It also allows admins to configure the response modes.
* Additionally this records specific values about a users session indicating when they performed a specific authz factor so this is represented in the token accurately. 
* Lastly we also implemented a OIDC key manager which calculates the kid for jwk's using the SHA1 digest instead of being static, or more specifically the first 7 chars. As per https://datatracker.ietf.org/doc/html/draft-ietf-jose-json-web-key#section-8.1.1 the kid should not exceed 8 chars. While it's allowed to exceed 8 chars, it must only be done so with a compelling reason, which we do not have.
2021-07-04 09:44:30 +10:00

119 lines
3.7 KiB
Go

package handlers
import (
"encoding/json"
"fmt"
"github.com/authelia/authelia/internal/middlewares"
)
func oidcConsent(ctx *middlewares.AutheliaCtx) {
userSession := ctx.GetSession()
if userSession.OIDCWorkflowSession == nil {
ctx.Logger.Debugf("Cannot consent for user %s when OIDC workflow has not been initiated", userSession.Username)
ctx.ReplyForbidden()
return
}
clientID := userSession.OIDCWorkflowSession.ClientID
client, err := ctx.Providers.OpenIDConnect.Store.GetInternalClient(clientID)
if err != nil {
ctx.Logger.Debugf("Unable to find related client configuration with name '%s': %v", clientID, err)
ctx.ReplyForbidden()
return
}
if !client.IsAuthenticationLevelSufficient(userSession.AuthenticationLevel) {
ctx.Logger.Debugf("Insufficient permissions to give consent v2 %d -> %d", userSession.AuthenticationLevel, userSession.OIDCWorkflowSession.RequiredAuthorizationLevel)
ctx.ReplyForbidden()
return
}
if err := ctx.SetJSONBody(client.GetConsentResponseBody(userSession.OIDCWorkflowSession)); err != nil {
ctx.Error(fmt.Errorf("Unable to set JSON body: %v", err), "Operation failed")
}
}
func oidcConsentPOST(ctx *middlewares.AutheliaCtx) {
userSession := ctx.GetSession()
if userSession.OIDCWorkflowSession == nil {
ctx.Logger.Debugf("Cannot consent for user %s when OIDC workflow has not been initiated", userSession.Username)
ctx.ReplyForbidden()
return
}
client, err := ctx.Providers.OpenIDConnect.Store.GetInternalClient(userSession.OIDCWorkflowSession.ClientID)
if err != nil {
ctx.Logger.Debugf("Unable to find related client configuration with name '%s': %v", userSession.OIDCWorkflowSession.ClientID, err)
ctx.ReplyForbidden()
return
}
if !client.IsAuthenticationLevelSufficient(userSession.AuthenticationLevel) {
ctx.Logger.Debugf("Insufficient permissions to give consent v1 %d -> %d", userSession.AuthenticationLevel, userSession.OIDCWorkflowSession.RequiredAuthorizationLevel)
ctx.ReplyForbidden()
return
}
var body ConsentPostRequestBody
err = json.Unmarshal(ctx.Request.Body(), &body)
if err != nil {
ctx.Error(fmt.Errorf("Unable to unmarshal body: %v", err), "Operation failed")
return
}
if body.AcceptOrReject != accept && body.AcceptOrReject != reject {
ctx.Logger.Infof("User %s tried to reply to consent with an unexpected verb", userSession.Username)
ctx.ReplyBadRequest()
return
}
if userSession.OIDCWorkflowSession.ClientID != body.ClientID {
ctx.Logger.Infof("User %s consented to scopes of another client (%s) than expected (%s). Beware this can be a sign of attack",
userSession.Username, body.ClientID, userSession.OIDCWorkflowSession.ClientID)
ctx.ReplyBadRequest()
return
}
var redirectionURL string
if body.AcceptOrReject == accept {
redirectionURL = userSession.OIDCWorkflowSession.AuthURI
userSession.OIDCWorkflowSession.GrantedScopes = userSession.OIDCWorkflowSession.RequestedScopes
userSession.OIDCWorkflowSession.GrantedAudience = userSession.OIDCWorkflowSession.RequestedAudience
if err := ctx.SaveSession(userSession); err != nil {
ctx.Error(fmt.Errorf("Unable to write session: %v", err), "Operation failed")
return
}
} else if body.AcceptOrReject == reject {
redirectionURL = fmt.Sprintf("%s?error=access_denied&error_description=%s",
userSession.OIDCWorkflowSession.TargetURI, "User has rejected the scopes")
userSession.OIDCWorkflowSession = nil
if err := ctx.SaveSession(userSession); err != nil {
ctx.Error(fmt.Errorf("Unable to write session: %v", err), "Operation failed")
return
}
}
response := ConsentPostResponseBody{RedirectURI: redirectionURL}
if err := ctx.SetJSONBody(response); err != nil {
ctx.Error(fmt.Errorf("Unable to set JSON body in response"), "Operation failed")
}
}