func compareJWTs(a, b jose.JWT) string {
if a.Encode() == b.Encode() {
return ""
}
var aClaims, bClaims jose.Claims
for _, j := range []struct {
claims *jose.Claims
jwt jose.JWT
}{
{&aClaims, a},
{&bClaims, b},
} {
var err error
*j.claims, err = j.jwt.Claims()
if err != nil {
*j.claims = jose.Claims(map[string]interface{}{
"msg": "bad claims",
"err": err,
})
}
}
return diff.ObjectDiff(aClaims, bClaims)
}
func handleTokenFunc(srv OIDCServer) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
w.Header().Set("Allow", "POST")
phttp.WriteError(w, http.StatusMethodNotAllowed, fmt.Sprintf("POST only acceptable method"))
return
}
err := r.ParseForm()
if err != nil {
log.Errorf("error parsing request: %v", err)
writeTokenError(w, oauth2.NewError(oauth2.ErrorInvalidRequest), "")
return
}
state := r.PostForm.Get("state")
user, password, ok := r.BasicAuth()
if !ok {
log.Errorf("error parsing basic auth")
writeTokenError(w, oauth2.NewError(oauth2.ErrorInvalidClient), state)
return
}
creds := oidc.ClientCredentials{ID: user, Secret: password}
var jwt *jose.JWT
var refreshToken string
grantType := r.PostForm.Get("grant_type")
switch grantType {
case oauth2.GrantTypeAuthCode:
code := r.PostForm.Get("code")
if code == "" {
log.Errorf("missing code param")
writeTokenError(w, oauth2.NewError(oauth2.ErrorInvalidRequest), state)
return
}
jwt, refreshToken, err = srv.CodeToken(creds, code)
if err != nil {
log.Errorf("couldn't exchange code for token: %v", err)
writeTokenError(w, err, state)
return
}
case oauth2.GrantTypeClientCreds:
jwt, err = srv.ClientCredsToken(creds)
if err != nil {
log.Errorf("couldn't creds for token: %v", err)
writeTokenError(w, err, state)
return
}
case oauth2.GrantTypeRefreshToken:
token := r.PostForm.Get("refresh_token")
if token == "" {
writeTokenError(w, oauth2.NewError(oauth2.ErrorInvalidRequest), state)
return
}
jwt, err = srv.RefreshToken(creds, token)
if err != nil {
writeTokenError(w, err, state)
return
}
default:
log.Errorf("unsupported grant: %v", grantType)
writeTokenError(w, oauth2.NewError(oauth2.ErrorUnsupportedGrantType), state)
return
}
t := oAuth2Token{
AccessToken: jwt.Encode(),
IDToken: jwt.Encode(),
TokenType: "bearer",
RefreshToken: refreshToken,
}
b, err := json.Marshal(t)
if err != nil {
log.Errorf("Failed marshaling %#v to JSON: %v", t, err)
writeTokenError(w, oauth2.NewError(oauth2.ErrorServerError), state)
return
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusOK)
w.Write(b)
}
}