a685e3fc98
Vndr has a simpler configuration and allows pointing to forked packages. Additionally other docker projects are now using vndr making vendoring in distribution more consistent. Updates letsencrypt to use fork. No longer uses sub-vendored packages. Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
79 lines
2.3 KiB
Go
79 lines
2.3 KiB
Go
package acme
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import (
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"fmt"
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"net"
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"net/http"
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"strings"
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)
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// HTTPProviderServer implements ChallengeProvider for `http-01` challenge
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// It may be instantiated without using the NewHTTPProviderServer function if
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// you want only to use the default values.
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type HTTPProviderServer struct {
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iface string
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port string
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done chan bool
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listener net.Listener
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}
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// NewHTTPProviderServer creates a new HTTPProviderServer on the selected interface and port.
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// Setting iface and / or port to an empty string will make the server fall back to
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// the "any" interface and port 80 respectively.
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func NewHTTPProviderServer(iface, port string) *HTTPProviderServer {
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return &HTTPProviderServer{iface: iface, port: port}
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}
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// Present starts a web server and makes the token available at `HTTP01ChallengePath(token)` for web requests.
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func (s *HTTPProviderServer) Present(domain, token, keyAuth string) error {
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if s.port == "" {
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s.port = "80"
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}
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var err error
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s.listener, err = net.Listen("tcp", net.JoinHostPort(s.iface, s.port))
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if err != nil {
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return fmt.Errorf("Could not start HTTP server for challenge -> %v", err)
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}
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s.done = make(chan bool)
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go s.serve(domain, token, keyAuth)
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return nil
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}
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// CleanUp closes the HTTP server and removes the token from `HTTP01ChallengePath(token)`
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func (s *HTTPProviderServer) CleanUp(domain, token, keyAuth string) error {
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if s.listener == nil {
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return nil
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}
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s.listener.Close()
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<-s.done
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return nil
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}
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func (s *HTTPProviderServer) serve(domain, token, keyAuth string) {
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path := HTTP01ChallengePath(token)
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// The handler validates the HOST header and request type.
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// For validation it then writes the token the server returned with the challenge
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mux := http.NewServeMux()
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mux.HandleFunc(path, func(w http.ResponseWriter, r *http.Request) {
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if strings.HasPrefix(r.Host, domain) && r.Method == "GET" {
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w.Header().Add("Content-Type", "text/plain")
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w.Write([]byte(keyAuth))
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logf("[INFO][%s] Served key authentication", domain)
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} else {
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logf("[INFO] Received request for domain %s with method %s", r.Host, r.Method)
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w.Write([]byte("TEST"))
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}
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})
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httpServer := &http.Server{
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Handler: mux,
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}
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// Once httpServer is shut down we don't want any lingering
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// connections, so disable KeepAlives.
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httpServer.SetKeepAlivesEnabled(false)
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httpServer.Serve(s.listener)
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s.done <- true
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}
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