11770b4058
Implement a full OAuth2 2.0 and OpenID Connect 1.0 authorization server with support for authorization code flow (with PKCE), refresh token rotation, device authorization grant, dynamic client registration, token introspection, and token revocation. Includes database schema, coredata layer, service logic, HTTP handlers, OIDC discovery endpoint, and JWKS publishing. Signed-off-by: Bryan Frimin <bryan@getprobo.com>
273 lines
8.2 KiB
Go
273 lines
8.2 KiB
Go
// Copyright (c) 2025-2026 Probo Inc <hello@getprobo.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 server
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import (
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"errors"
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"net/http"
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"path"
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"strings"
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"github.com/go-chi/chi/v5"
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"go.gearno.de/kit/httpserver"
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"go.gearno.de/kit/log"
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"go.gearno.de/x/ref"
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"go.probo.inc/probo/pkg/accessreview"
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"go.probo.inc/probo/pkg/baseurl"
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"go.probo.inc/probo/pkg/connector"
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"go.probo.inc/probo/pkg/cookiebanner"
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"go.probo.inc/probo/pkg/esign"
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"go.probo.inc/probo/pkg/file"
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"go.probo.inc/probo/pkg/iam"
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"go.probo.inc/probo/pkg/iam/oauth2server"
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"go.probo.inc/probo/pkg/mailman"
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"go.probo.inc/probo/pkg/probo"
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"go.probo.inc/probo/pkg/securecookie"
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"go.probo.inc/probo/pkg/server/api"
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"go.probo.inc/probo/pkg/server/api/compliancepage"
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"go.probo.inc/probo/pkg/server/mailactions"
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trust_web "go.probo.inc/probo/pkg/server/trust"
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console_web "go.probo.inc/probo/pkg/server/web"
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"go.probo.inc/probo/pkg/slack"
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"go.probo.inc/probo/pkg/trust"
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"go.probo.inc/probo/pkg/uri"
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)
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type Config struct {
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BaseURL *baseurl.BaseURL
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AllowedOrigins []string
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ExtraHeaderFields map[string]string
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Probo *probo.Service
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File *file.Service
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IAM *iam.Service
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Trust *trust.Service
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ESign *esign.Service
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AccessReview *accessreview.Service
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Slack *slack.Service
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Mailman *mailman.Service
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CookieBanner *cookiebanner.Service
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Cookie securecookie.Config
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TokenSecret string
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ConnectorRegistry *connector.ConnectorRegistry
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CustomDomainCname string
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Logger *log.Logger
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}
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type Server struct {
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apiServer *api.Server
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mailActionsHandler http.Handler
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consoleWebServer *console_web.Server
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trustWebServer *trust_web.Server
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router *chi.Mux
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extraHeaderFields map[string]string
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baseURL string
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proboService *probo.Service
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iamService *iam.Service
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trustService *trust.Service
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logger *log.Logger
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}
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func NewServer(cfg Config) (*Server, error) {
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apiCfg := api.Config{
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BaseURL: cfg.BaseURL,
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AllowedOrigins: cfg.AllowedOrigins,
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Probo: cfg.Probo,
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File: cfg.File,
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IAM: cfg.IAM,
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Trust: cfg.Trust,
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ESign: cfg.ESign,
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AccessReview: cfg.AccessReview,
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Slack: cfg.Slack,
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Mailman: cfg.Mailman,
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CookieBanner: cfg.CookieBanner,
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Cookie: cfg.Cookie,
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TokenSecret: cfg.TokenSecret,
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ConnectorRegistry: cfg.ConnectorRegistry,
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CustomDomainCname: cfg.CustomDomainCname,
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Logger: cfg.Logger.Named("api"),
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}
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apiServer, err := api.NewServer(apiCfg)
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if err != nil {
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return nil, err
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}
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consoleWebServer, err := console_web.NewServer()
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if err != nil {
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return nil, err
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}
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trustWebServer, err := trust_web.NewServer(compliancePageHeadData(cfg.BaseURL, cfg.Trust))
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if err != nil {
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return nil, err
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}
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router := chi.NewRouter()
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server := &Server{
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apiServer: apiServer,
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mailActionsHandler: mailactions.NewMux(cfg.Mailman, cfg.TokenSecret),
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consoleWebServer: consoleWebServer,
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trustWebServer: trustWebServer,
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router: router,
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extraHeaderFields: cfg.ExtraHeaderFields,
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baseURL: cfg.BaseURL.String(),
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proboService: cfg.Probo,
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iamService: cfg.IAM,
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trustService: cfg.Trust,
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logger: cfg.Logger,
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}
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server.setupRoutes(cfg.BaseURL.String())
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return server, nil
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}
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func (s *Server) setupRoutes(baseURL string) {
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// OIDC Discovery 1.0 §4 and RFC 8414 §3 both require the metadata
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// document at the issuer root under well-known paths.
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s.router.Get("/.well-known/openid-configuration", s.oidcDiscoveryHandler)
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s.router.Get("/.well-known/oauth-authorization-server", s.oidcDiscoveryHandler)
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s.router.Mount("/api", http.StripPrefix("/api", s.apiServer))
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s.router.Mount("/mail-actions", http.StripPrefix("/mail-actions", s.mailActionsHandler))
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s.router.Route("/trust/{slugOrId}", func(r chi.Router) {
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r.Use(compliancepage.NewIDMiddleware(s.trustService, baseURL))
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r.Use(s.stripTrustPrefix)
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r.Mount("/", s.trustCenterRouter())
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})
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s.router.Mount("/", s.consoleWebServer)
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}
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func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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s.setExtraHeaders(w)
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s.router.ServeHTTP(w, r)
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}
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func (s *Server) setExtraHeaders(w http.ResponseWriter) {
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for key, value := range s.extraHeaderFields {
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w.Header().Set(key, value)
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}
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}
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func (s *Server) oidcDiscoveryHandler(w http.ResponseWriter, r *http.Request) {
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api := s.baseURL + "/api/connect/v1"
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endpoints := oauth2server.Endpoints{
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Authorization: uri.URI(api + "/oauth2/authorize"),
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Token: uri.URI(api + "/oauth2/token"),
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Userinfo: uri.URI(api + "/oauth2/userinfo"),
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JWKS: uri.URI(api + "/oauth2/jwks"),
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Registration: uri.URI(api + "/oauth2/register"),
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Introspection: uri.URI(api + "/oauth2/introspect"),
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Revocation: uri.URI(api + "/oauth2/revoke"),
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DeviceAuthorization: uri.URI(api + "/oauth2/device"),
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}
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metadata := s.iamService.OAuth2ServerService.Metadata(endpoints)
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w.Header().Set("Cache-Control", "public, max-age=3600")
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httpserver.RenderJSON(w, http.StatusOK, metadata)
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}
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func (s *Server) handleCustomDomain404(w http.ResponseWriter, r *http.Request) {
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httpserver.RenderError(w, http.StatusNotFound, errors.New("not found"))
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}
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func (s *Server) stripTrustPrefix(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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slugOrId := chi.URLParam(r, "slugOrId")
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prefix := "/trust/" + slugOrId
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if r.URL.Path == prefix {
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cleanPath := path.Clean(prefix) + "/"
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http.Redirect(w, r, cleanPath, http.StatusMovedPermanently)
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return
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}
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r.URL.Path = strings.TrimPrefix(r.URL.Path, prefix)
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if r.URL.Path == "" {
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r.URL.Path = "/"
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}
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next.ServeHTTP(w, r)
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})
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}
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func (s *Server) trustCenterRouter() chi.Router {
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r := chi.NewRouter()
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h := compliancepage.NewHandler(s.trustService)
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r.Mount("/api/trust/v1", s.apiServer.CompliancePageHandler())
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r.Get("/llms.txt", h.HandleLLMsTxt)
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r.Get("/robots.txt", h.HandleRobotsTxt)
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r.Get("/sitemap.xml", h.HandleSitemap)
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r.Handle("/*", s.trustWebServer)
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return r
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}
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func (s *Server) TrustCenterHandler() http.Handler {
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r := chi.NewRouter()
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r.Use(compliancepage.NewSNIMiddleware(s.trustService))
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r.Use(func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Strict-Transport-Security", "max-age=31536000; preload")
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s.setExtraHeaders(w)
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next.ServeHTTP(w, r)
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})
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})
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r.NotFound(s.handleCustomDomain404)
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r.Mount("/", s.trustCenterRouter())
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return r
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}
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func compliancePageHeadData(baseURL *baseurl.BaseURL, trustService *trust.Service) trust_web.HeadDataFunc {
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return func(r *http.Request) trust_web.HeadData {
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tc := compliancepage.CompliancePageFromContext(r.Context())
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if tc == nil {
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return trust_web.HeadData{Title: "Compliance Page"}
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}
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org, err := trustService.GetOrganizationByTrustCenterID(r.Context(), tc.ID)
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if err != nil || org == nil {
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return trust_web.HeadData{Title: "Compliance Page"}
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}
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compliancePageBaseURL := compliancepage.CompliancePageBaseURLFromContext(r.Context())
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headData := trust_web.HeadData{
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Title: org.Name + " — Compliance",
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Description: org.Name + " Compliance Page",
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OGURL: ref.UnrefOrZero(compliancePageBaseURL),
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}
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if tc.LogoFileID != nil {
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faviconURL, err := baseURL.WithPath("/api/files/v1/" + tc.LogoFileID.String()).String()
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if err == nil {
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headData.FaviconURL = faviconURL
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}
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}
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return headData
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}
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}
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