1116fc6bb4
Several HTTP entry points still parsed RemoteAddr directly, so behind a layer-7 proxy they recorded the load balancer IP instead of the signer's. Route NDA acceptance, signing events, document sign/approve, and session updates through clientip.Extract, which honors Forwarded and X-Forwarded-For when trustedproxy allows them. Signed-off-by: Ludovic Vielle <ludovic@probo.com>
128 lines
3.5 KiB
Go
128 lines
3.5 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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"errors"
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"fmt"
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"net"
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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.gearno.de/kit/log"
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"go.probo.inc/probo/pkg/gid"
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"go.probo.inc/probo/pkg/iam"
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"go.probo.inc/probo/pkg/securecookie"
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"go.probo.inc/probo/pkg/server/api/clientip"
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"go.probo.inc/probo/pkg/server/gqlutils"
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)
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func NewSessionMiddleware(svc *iam.Service, cookieConfig securecookie.Config) 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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cookieValue, err := securecookie.Get(r, cookieConfig)
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if err != nil {
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next.ServeHTTP(w, r)
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return
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}
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sessionID, err := gid.ParseGID(cookieValue)
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if err != nil {
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securecookie.Clear(w, cookieConfig)
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next.ServeHTTP(w, r)
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return
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}
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apiKey := APIKeyFromContext(ctx)
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if sessionID != gid.Nil && apiKey != nil {
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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.Conflictf(ctx, "session authentication cannot be used with API key authentication"),
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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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session, err := svc.SessionService.GetSession(ctx, sessionID)
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if err != nil {
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if _, ok := errors.AsType[*iam.ErrSessionNotFound](err); ok {
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securecookie.Clear(w, cookieConfig)
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next.ServeHTTP(w, r)
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return
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}
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if _, ok := errors.AsType[*iam.ErrSessionExpired](err); ok {
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securecookie.Clear(w, cookieConfig)
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next.ServeHTTP(w, r)
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return
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}
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panic(fmt.Errorf("cannot get session: %w", err))
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}
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identity, err := svc.AccountService.GetIdentity(ctx, session.IdentityID)
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if err != nil {
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if _, ok := errors.AsType[*iam.ErrIdentityNotFound](err); ok {
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securecookie.Clear(w, cookieConfig)
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next.ServeHTTP(w, r)
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return
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}
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panic(fmt.Errorf("cannot get identity: %w", err))
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}
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userAgent := r.UserAgent()
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ipAddress := net.ParseIP(clientip.Extract(r))
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err = svc.SessionService.UpdateSessionInfo(ctx, session.ID, userAgent, ipAddress)
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if err != nil {
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panic(fmt.Errorf("cannot update session info: %w", err))
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}
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ctx = ContextWithSession(ctx, session)
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ctx = ContextWithIdentity(ctx, identity)
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httpserver.LoggerFromContext(ctx).InfoCtx(
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ctx,
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"session authenticated",
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log.String("identity_id", identity.ID.String()),
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log.String("session_id", session.ID.String()),
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)
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next.ServeHTTP(w, r.WithContext(ctx))
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err = svc.SessionService.UpdateSessionData(ctx, session.ID, session.Data)
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if err != nil {
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panic(fmt.Errorf("cannot update session data: %w", err))
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}
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},
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)
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}
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}
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