e424563794
Introduce BearerChallengeMiddleware on MCP, Console and Connect GraphQL, Files, and OAuth2 userinfo. Call sites record challenge intent in context via NoteUnauthenticated, NoteInvalidToken, and NoteInsufficientScope; the middleware applies resource_metadata, invalid_token, and insufficient_scope on WriteHeader. OAuth2 access token middleware flags rejected Bearer tokens for invalid_token challenges. Add Authorizer.ScopesForAction for the scope auth-param. Signed-off-by: Ludovic Vielle <ludovic@probo.com>
63 lines
1.9 KiB
Go
63 lines
1.9 KiB
Go
// Copyright (c) 2026 Probo Inc <hello@probo.com>.
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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// PERFORMANCE OF THIS SOFTWARE.
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package authn
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import (
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"net/http"
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"github.com/99designs/gqlgen/graphql"
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"github.com/vektah/gqlparser/v2/gqlerror"
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"go.gearno.de/kit/httpserver"
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"go.probo.inc/probo/pkg/baseurl"
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"go.probo.inc/probo/pkg/bearertoken"
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"go.probo.inc/probo/pkg/server/gqlutils"
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)
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func NewIdentityPresenceMiddleware(baseURL *baseurl.BaseURL) func(next http.Handler) http.Handler {
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(
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func(w http.ResponseWriter, r *http.Request) {
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ctx := r.Context()
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identity := IdentityFromContext(ctx)
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if identity == nil {
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if bearertoken.IsAttempt(r.Header.Get("Authorization")) {
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bearertoken.SetBearerInvalidToken(w, baseURL)
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} else {
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bearertoken.SetBearerUnauthenticated(w, baseURL)
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}
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httpserver.RenderJSON(
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w,
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http.StatusUnauthorized,
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&graphql.Response{
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Errors: gqlerror.List{
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gqlutils.Unauthenticatedf(
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r.Context(),
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"authentication is required to access this resource",
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),
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},
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},
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)
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return
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}
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next.ServeHTTP(w, r)
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},
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)
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}
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}
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