77 lines
2.1 KiB
Go
77 lines
2.1 KiB
Go
package op
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import (
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"errors"
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"net/http"
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"github.com/caos/oidc/pkg/oidc"
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"github.com/caos/oidc/pkg/utils"
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)
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type Introspector interface {
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Decoder() utils.Decoder
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Crypto() Crypto
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Storage() Storage
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AccessTokenVerifier() AccessTokenVerifier
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}
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type IntrospectorJWTProfile interface {
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Introspector
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JWTProfileVerifier() JWTProfileVerifier
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}
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func introspectionHandler(introspector Introspector) func(http.ResponseWriter, *http.Request) {
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return func(w http.ResponseWriter, r *http.Request) {
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Introspect(w, r, introspector)
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}
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}
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func Introspect(w http.ResponseWriter, r *http.Request, introspector Introspector) {
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response := oidc.NewIntrospectionResponse()
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token, clientID, err := ParseTokenIntrospectionRequest(r, introspector)
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if err != nil {
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http.Error(w, err.Error(), http.StatusUnauthorized)
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return
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}
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tokenID, subject, ok := getTokenIDAndSubject(r.Context(), introspector, token)
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if !ok {
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utils.MarshalJSON(w, response)
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return
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}
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err = introspector.Storage().SetIntrospectionFromToken(r.Context(), response, tokenID, subject, clientID)
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if err != nil {
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utils.MarshalJSON(w, response)
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return
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}
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response.SetActive(true)
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utils.MarshalJSON(w, response)
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}
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func ParseTokenIntrospectionRequest(r *http.Request, introspector Introspector) (token, clientID string, err error) {
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err = r.ParseForm()
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if err != nil {
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return "", "", errors.New("unable to parse request")
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}
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req := new(struct {
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oidc.IntrospectionRequest
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oidc.ClientAssertionParams
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})
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err = introspector.Decoder().Decode(req, r.Form)
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if err != nil {
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return "", "", errors.New("unable to parse request")
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}
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if introspectorJWTProfile, ok := introspector.(IntrospectorJWTProfile); ok && req.ClientAssertion != "" {
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profile, err := VerifyJWTAssertion(r.Context(), req.ClientAssertion, introspectorJWTProfile.JWTProfileVerifier())
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if err == nil {
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return req.Token, profile.Issuer, nil
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}
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}
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clientID, clientSecret, ok := r.BasicAuth()
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if ok {
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if err := introspector.Storage().AuthorizeClientIDSecret(r.Context(), clientID, clientSecret); err != nil {
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return "", "", err
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}
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return req.Token, clientID, nil
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}
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return "", "", errors.New("invalid authorization")
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}
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