Move trust GraphQL API under complianceportal v1

Relocate the public trust center GraphQL surface, OAuth handlers,
and SPA serving into the compliance portal API package and remove
the legacy trust v1 server tree.

Signed-off-by: Bryan Frimin <bryan@probo.com>

pkg/server/api/complianceportal/v1/mux.go

@@ -0,0 +1,163 @@
+// Copyright (c) 2026 Probo Inc <hello@probo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+package complianceportal_v1
+
+import (
+	"context"
+	"errors"
+	"net/http"
+
+	"github.com/go-chi/chi/v5"
+	"go.gearno.de/kit/httpserver"
+	"go.gearno.de/kit/log"
+	"go.gearno.de/x/ref"
+	"go.probo.inc/probo/pkg/baseurl"
+	visitor "go.probo.inc/probo/pkg/complianceportal/visitor"
+	"go.probo.inc/probo/pkg/esign"
+	"go.probo.inc/probo/pkg/filemanager"
+	"go.probo.inc/probo/pkg/iam"
+	"go.probo.inc/probo/pkg/mailman"
+	"go.probo.inc/probo/pkg/resourcealias"
+	"go.probo.inc/probo/pkg/securecookie"
+	"go.probo.inc/probo/pkg/server"
+	"go.probo.inc/probo/pkg/server/api/authn"
+	"go.probo.inc/probo/pkg/server/api/complianceportal"
+	"go.probo.inc/probo/pkg/server/gqlutils"
+)
+
+type MuxConfig struct {
+	BaseURL           *baseurl.BaseURL
+	ExtraHeaderFields map[string]string
+	Logger            *log.Logger
+	IAM               *iam.Service
+	Visitor           *visitor.Service
+	ResourceAlias     *resourcealias.Service
+	File              *filemanager.Service
+	ESign             *esign.Service
+	Mailman           *mailman.Service
+	Cookie            securecookie.Config
+	TokenSecret       string
+	GraphQLLimits     gqlutils.Limits
+}
+
+func NewMux(cfg MuxConfig) (http.Handler, error) {
+	webServer, err := NewServer(compliancePageHeadData(cfg.BaseURL))
+	if err != nil {
+		return nil, err
+	}
+
+	r := chi.NewRouter()
+
+	r.Use(complianceportal.NewSNIMiddleware(cfg.Visitor))
+	r.Use(server.NewSecurityHeadersMiddleware(cfg.ExtraHeaderFields))
+
+	markdownHandler := complianceportal.NewHandler(cfg.Visitor)
+
+	r.Get("/llms.txt", markdownHandler.HandleLLMsTxt)
+	r.Get("/robots.txt", markdownHandler.HandleRobotsTxt)
+	r.Get("/sitemap.xml", markdownHandler.HandleSitemap)
+
+	allowedHost := func(ctx context.Context, host string) bool {
+		_, err := cfg.Visitor.GetPortalByDomainName(ctx, host)
+		return err == nil
+	}
+
+	oauthInitiateHandler := NewOAuthInitiateHandler(
+		cfg.BaseURL,
+		cfg.Visitor,
+		allowedHost,
+		cfg.Logger,
+	)
+	oauthCallbackHandler := NewOAuthCallbackHandler(
+		cfg.IAM,
+		cfg.Visitor,
+		cfg.Cookie,
+		allowedHost,
+		cfg.Logger,
+	)
+
+	graphqlHandler := NewGraphQLHandler(
+		cfg.IAM,
+		cfg.Visitor,
+		cfg.ResourceAlias,
+		cfg.File,
+		cfg.ESign,
+		cfg.Mailman,
+		cfg.Logger,
+		cfg.BaseURL,
+		cfg.Cookie,
+		cfg.TokenSecret,
+		cfg.GraphQLLimits,
+	)
+
+	r.Group(
+		func(r chi.Router) {
+			r.Use(complianceportal.NewCompliancePagePresenceMiddleware())
+
+			r.Method(http.MethodGet, complianceportal.CIMDMetadataPath, NewOAuthClientMetadataHandler())
+			r.Method(http.MethodGet, complianceportal.OAuthInitiatePath, oauthInitiateHandler)
+			r.Method(http.MethodGet, complianceportal.OAuthCallbackPath, oauthCallbackHandler)
+
+			r.Group(
+				func(r chi.Router) {
+					r.Use(authn.NewSessionMiddleware(cfg.IAM, cfg.Cookie))
+					r.Use(complianceportal.NewSessionHostMiddleware(cfg.Cookie))
+					r.Use(complianceportal.NewMemberProvisioningMiddleware(cfg.Visitor, cfg.Logger))
+					r.Handle(complianceportal.GraphQLPath, graphqlHandler)
+				},
+			)
+
+			r.Handle("/*", webServer)
+			r.NotFound(handleCustomDomain404)
+		},
+	)
+
+	return r, nil
+}
+
+func handleCustomDomain404(w http.ResponseWriter, r *http.Request) {
+	httpserver.RenderError(w, http.StatusNotFound, errors.New("not found"))
+}
+
+func compliancePageHeadData(baseURL *baseurl.BaseURL) HeadDataFunc {
+	return func(r *http.Request) HeadData {
+		tc := complianceportal.CompliancePageFromContext(r.Context())
+		if tc == nil {
+			return HeadData{Title: "Compliance Page"}
+		}
+
+		compliancePageBaseURL := complianceportal.CompliancePageBaseURLFromContext(r.Context())
+
+		description := tc.Title + " Compliance Page"
+		if tc.Description != nil && *tc.Description != "" {
+			description = *tc.Description
+		}
+
+		headData := HeadData{
+			Title:       tc.Title,
+			Description: description,
+			OGURL:       ref.UnrefOrZero(compliancePageBaseURL),
+		}
+
+		if tc.LogoFileID != nil {
+			faviconURL, err := baseURL.WithPath("/api/files/v1/public/" + tc.LogoFileID.String()).String()
+			if err == nil {
+				headData.FaviconURL = faviconURL
+			}
+		}
+
+		return headData
+	}
+}