Rename pkg in certmanager

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

pkg/certmanager/acme_challenge_handler.go

@@ -0,0 +1,100 @@
+// Copyright (c) 2025 Probo Inc <hello@getprobo.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 certmanager
+
+import (
+	"context"
+	"net/http"
+	"strings"
+
+	"github.com/getprobo/probo/pkg/coredata"
+	"github.com/getprobo/probo/pkg/crypto/cipher"
+	"go.gearno.de/kit/log"
+	"go.gearno.de/kit/pg"
+)
+
+type ACMEChallengeHandler struct {
+	pg            *pg.Client
+	encryptionKey cipher.EncryptionKey
+	logger        *log.Logger
+}
+
+func NewACMEChallengeHandler(
+	pg *pg.Client,
+	encryptionKey cipher.EncryptionKey,
+	logger *log.Logger,
+) *ACMEChallengeHandler {
+	return &ACMEChallengeHandler{
+		pg:            pg,
+		encryptionKey: encryptionKey,
+		logger:        logger.Named("acme-challenge-handler"),
+	}
+}
+
+func (h *ACMEChallengeHandler) Handle(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if !strings.HasPrefix(r.URL.Path, "/.well-known/acme-challenge/") {
+			next.ServeHTTP(w, r)
+			return
+		}
+
+		token := strings.TrimPrefix(r.URL.Path, "/.well-known/acme-challenge/")
+		if token == "" {
+			http.NotFound(w, r)
+			return
+		}
+
+		keyAuth, err := h.getKeyAuthForToken(r.Context(), token)
+		if err != nil {
+			h.logger.WarnCtx(
+				r.Context(),
+				"cannot get key auth for token",
+				log.String("token", token),
+				log.Error(err),
+			)
+
+			http.NotFound(w, r)
+			return
+		}
+
+		w.Header().Set("Content-Type", "text/plain")
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(keyAuth))
+	})
+}
+
+func (h *ACMEChallengeHandler) getKeyAuthForToken(ctx context.Context, token string) (string, error) {
+	var keyAuth string
+
+	err := h.pg.WithConn(
+		ctx,
+		func(conn pg.Conn) error {
+			domain := &coredata.CustomDomain{}
+			if err := domain.LoadByHTTPChallengeToken(ctx, conn, coredata.NewNoScope(), h.encryptionKey, token); err != nil {
+				return err
+			}
+
+			if domain.HTTPChallengeKeyAuth == nil {
+				return http.ErrNotSupported
+			}
+
+			keyAuth = *domain.HTTPChallengeKeyAuth
+
+			return nil
+		},
+	)
+
+	return keyAuth, err
+}