118 lines
3.5 KiB
Go
118 lines
3.5 KiB
Go
// Copyright (c) 2025 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 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.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/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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var errSessionNotFound *iam.ErrSessionNotFound
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var errSessionExpired *iam.ErrSessionExpired
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if errors.As(err, &errSessionNotFound) || errors.As(err, &errSessionExpired) {
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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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var errIdentityNotFound *iam.ErrIdentityNotFound
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if errors.As(err, &errIdentityNotFound) {
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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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// TODO: will work well when no layer 7 proxy is in front of the server
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var ipAddress net.IP
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if host, _, err := net.SplitHostPort(r.RemoteAddr); err == nil {
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ipAddress = net.ParseIP(host)
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} else {
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ipAddress = net.ParseIP(r.RemoteAddr)
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}
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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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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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