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package git
import (
"context"
"fmt"
"io"
"net/http"
"time"
"gitlab.com/gitlab-org/gitlab-workhorse/internal/api"
"gitlab.com/gitlab-org/gitlab-workhorse/internal/gitaly"
"gitlab.com/gitlab-org/gitlab-workhorse/internal/helper"
)
var (
uploadPackTimeout = 10 * time.Minute
)
// Will not return a non-nil error after the response body has been
// written to.
func handleUploadPack(w *HttpResponseWriter, r *http.Request, a *api.Response) error {
ctx := r.Context()
// Prevent the client from holding the connection open indefinitely. A
// transfer rate of 17KiB/sec is sufficient to send 10MiB of data in
// ten minutes, which seems adequate. Most requests will be much smaller.
// This mitigates a use-after-check issue.
//
// We can't reliably interrupt the read from a http handler, but we can
// ensure the request will (eventually) fail: https://github.com/golang/go/issues/16100
readerCtx, cancel := context.WithTimeout(ctx, uploadPackTimeout)
defer cancel()
limited := helper.NewContextReader(readerCtx, r.Body)
cr, cw := helper.NewWriteAfterReader(limited, w)
defer cw.Flush()
action := getService(r)
writePostRPCHeader(w, action)
gitProtocol := r.Header.Get("Git-Protocol")
return handleUploadPackWithGitaly(ctx, a, cr, cw, gitProtocol)
}
func handleUploadPackWithGitaly(ctx context.Context, a *api.Response, clientRequest io.Reader, clientResponse io.Writer, gitProtocol string) error {
ctx, smarthttp, err := gitaly.NewSmartHTTPClient(ctx, a.GitalyServer)
if err != nil {
return fmt.Errorf("smarthttp.UploadPack: %v", err)
}
if err := smarthttp.UploadPack(ctx, &a.Repository, clientRequest, clientResponse, gitConfigOptions(a), gitProtocol); err != nil {
return fmt.Errorf("smarthttp.UploadPack: %v", err)
}
return nil
}
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