b524e9b497
Replace the Provisioner and Renewer with poll-based provision and renew workers orchestrated by a certmanager Service. Certificate operations are now hostname-centric and driven by the certificates table, decoupled from custom-domain business logic. Signed-off-by: Bryan Frimin <bryan@probo.com>
104 lines
2.8 KiB
Go
104 lines
2.8 KiB
Go
// Copyright (c) 2025-2026 Probo Inc <hello@probo.com>.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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package certmanager
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import (
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"context"
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"net/http"
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"strings"
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"go.gearno.de/kit/log"
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"go.gearno.de/kit/pg"
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"go.probo.inc/probo/pkg/coredata"
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)
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type ACMEChallengeHandler struct {
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pg *pg.Client
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logger *log.Logger
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}
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func NewACMEChallengeHandler(
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pg *pg.Client,
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logger *log.Logger,
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) *ACMEChallengeHandler {
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return &ACMEChallengeHandler{
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pg: pg,
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logger: logger.Named("certmanager.acme-challenge-handler"),
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}
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}
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func (h *ACMEChallengeHandler) Handle(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if !strings.HasPrefix(r.URL.Path, "/.well-known/acme-challenge/") {
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next.ServeHTTP(w, r)
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return
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}
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token := strings.TrimPrefix(r.URL.Path, "/.well-known/acme-challenge/")
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if token == "" {
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http.NotFound(w, r)
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return
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}
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keyAuth, err := h.getKeyAuthForToken(r.Context(), token)
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if err != nil {
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h.logger.WarnCtx(
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r.Context(),
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"cannot get key auth for token",
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log.String("token", token),
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log.Error(err),
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)
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http.NotFound(w, r)
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return
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}
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w.Header().Set("Content-Type", "text/plain")
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w.WriteHeader(http.StatusOK)
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_, _ = w.Write([]byte(keyAuth))
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})
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}
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func (h *ACMEChallengeHandler) getKeyAuthForToken(ctx context.Context, token string) (string, error) {
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var keyAuth string
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err := h.pg.WithConn(
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ctx,
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func(ctx context.Context, conn pg.Querier) error {
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certificate := &coredata.Certificate{}
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if err := certificate.LoadByHTTPChallengeToken(ctx, conn, coredata.NewNoScope(), token); err != nil {
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return err
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}
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if certificate.HTTPChallengeKeyAuth == nil {
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return http.ErrNotSupported
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}
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keyAuth = *certificate.HTTPChallengeKeyAuth
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return nil
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},
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)
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return keyAuth, err
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}
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