Files
byre/internal/server/clients.go
T

84 lines
2.1 KiB
Go

package server
import (
"bytes"
"errors"
"fmt"
"io"
"log/slog"
"net/http"
"os"
"os/exec"
"path/filepath"
"time"
"github.com/coder/websocket"
"g.fc.run/misc/byre/internal/clients"
)
func (s *Server) ConnectClient(w http.ResponseWriter, r *http.Request) {
host := r.Header.Get("Byre-Host")
if host == "" {
writeError(w, http.StatusBadRequest, errors.New("missing Byre-Host"))
return
}
ws, err := websocket.Accept(w, r, nil)
if err != nil {
slog.Warn("accept client websocket", "host", host, "err", err)
return
}
defer ws.CloseNow()
s.clients.Serve(r.Context(), ws, clients.Client{
Login: actor(r),
Host: host,
Commit: r.Header.Get("Byre-Commit"),
ConnectedAt: time.Now().UTC(),
})
}
func (s *Server) GetClientTransfer(w http.ResponseWriter, r *http.Request, transferID string) {
t, ok := s.clients.Transfer(transferID)
if !ok || t.Receive {
writeError(w, http.StatusNotFound, fmt.Errorf("no transfer %s to send", transferID))
return
}
w.Header().Set("Content-Type", "application/gzip")
cmd := exec.CommandContext(r.Context(), "tar", "-czf", "-", "-C", t.Dir, "--", t.Name)
cmd.Stdout = w
stderr := &bytes.Buffer{}
cmd.Stderr = stderr
err := cmd.Run()
if err != nil {
slog.Error("stream client transfer", "transfer", transferID, "dir", t.Dir, "name", t.Name, "err", err, "stderr", stderr.String())
panic(http.ErrAbortHandler)
}
}
func (s *Server) PutClientTransfer(w http.ResponseWriter, r *http.Request, transferID string) {
t, ok := s.clients.Transfer(transferID)
if !ok || !t.Receive {
writeError(w, http.StatusNotFound, fmt.Errorf("no transfer %s to receive", transferID))
return
}
f, err := os.OpenFile(filepath.Join(t.Dir, t.Name), os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0o600)
if err != nil {
writeError(w, http.StatusNotFound, fmt.Errorf("transfer %s: %w", transferID, err))
return
}
_, err = io.Copy(f, r.Body)
cerr := f.Close()
if err == nil {
err = cerr
}
if err != nil {
writeError(w, http.StatusInternalServerError, fmt.Errorf("receive transfer %s: %w", transferID, err))
return
}
w.WriteHeader(http.StatusNoContent)
}