2022-03-25 14:10:26 +01:00

132 lines
4.5 KiB
Go

package api_impl
// SPDX-License-Identifier: GPL-3.0-or-later
import (
"net/http"
"github.com/labstack/echo/v4"
"git.blender.org/flamenco/pkg/api"
"git.blender.org/flamenco/pkg/shaman/fileserver"
)
// Create a directory, and symlink the required files into it. The files must all have been uploaded to Shaman before calling this endpoint.
// (POST /shaman/checkout/create/{checkoutID})
func (f *Flamenco) ShamanCheckout(e echo.Context, checkoutID string) error {
logger := requestLogger(e).With().
Str("checkoutID", checkoutID).
Logger()
var reqBody api.ShamanCheckoutJSONBody
err := e.Bind(&reqBody)
if err != nil {
logger.Warn().Err(err).Msg("bad request received")
return sendAPIError(e, http.StatusBadRequest, "invalid format")
}
err = f.shaman.Checkout(e.Request().Context(), checkoutID, api.ShamanCheckout(reqBody))
if err != nil {
// TODO: return 409 when checkout already exists.
logger.Warn().Err(err).Msg("Shaman: creating checkout")
return sendAPIError(e, http.StatusInternalServerError, "unexpected error: %v", err)
}
return e.String(http.StatusNoContent, "")
}
// Checks a Shaman Requirements file, and reports which files are unknown.
// (POST /shaman/checkout/requirements)
func (f *Flamenco) ShamanCheckoutRequirements(e echo.Context) error {
logger := requestLogger(e)
var reqBody api.ShamanCheckoutRequirementsJSONBody
err := e.Bind(&reqBody)
if err != nil {
logger.Warn().Err(err).Msg("bad request received")
return sendAPIError(e, http.StatusBadRequest, "invalid format")
}
unknownFiles, err := f.shaman.Requirements(e.Request().Context(), api.ShamanRequirements(reqBody))
if err != nil {
logger.Warn().Err(err).Msg("Shaman: checking checkout requirements file")
return sendAPIError(e, http.StatusInternalServerError, "unexpected error: %v", err)
}
return e.JSON(http.StatusOK, unknownFiles)
}
// Check the status of a file on the Shaman server.
// (OPTIONS /shaman/files/{checksum}/{filesize})
func (f *Flamenco) ShamanFileStoreCheck(e echo.Context, checksum string, filesize int) error {
logger := requestLogger(e).With().
Str("checksum", checksum).Int("filesize", filesize).
Logger()
status, err := f.shaman.FileStoreCheck(e.Request().Context(), checksum, int64(filesize))
if err != nil {
logger.Warn().Err(err).Msg("Shaman: checking stored file")
return sendAPIError(e, http.StatusInternalServerError, "unexpected error: %v", err)
}
// TODO: actually switch over the actual statuses, see the TODO in the Shaman interface.
switch status {
case api.ShamanFileStatusStatusStored:
return e.String(http.StatusOK, "")
case api.ShamanFileStatusStatusUploading:
return e.String(420 /* Enhance Your Calm */, "")
case api.ShamanFileStatusStatusUnknown:
return e.String(http.StatusNotFound, "")
}
return sendAPIError(e, http.StatusInternalServerError, "unexpected file status")
}
// Store a new file on the Shaman server. Note that the Shaman server can
// forcibly close the HTTP connection when another client finishes uploading the
// exact same file, to prevent double uploads.
// (POST /shaman/files/{checksum}/{filesize})
func (f *Flamenco) ShamanFileStore(e echo.Context, checksum string, filesize int, params api.ShamanFileStoreParams) error {
var (
origFilename string
canDefer bool
)
logCtx := requestLogger(e).With().
Str("checksum", checksum).Int("filesize", filesize)
if params.XShamanCanDeferUpload != nil {
canDefer = *params.XShamanCanDeferUpload
logCtx = logCtx.Bool("canDefer", canDefer)
}
if params.XShamanOriginalFilename != nil {
origFilename = *params.XShamanOriginalFilename
logCtx = logCtx.Str("originalFilename", origFilename)
}
logger := logCtx.Logger()
err := f.shaman.FileStore(e.Request().Context(), e.Request().Body,
checksum, int64(filesize),
canDefer, origFilename,
)
if err != nil {
if err == fileserver.ErrFileAlreadyExists {
return e.String(http.StatusAlreadyReported, "")
}
logger.Warn().Err(err).Msg("shaman: checking stored file")
if sizeErr, ok := err.(fileserver.ErrFileSizeMismatch); ok {
return sendAPIError(e, http.StatusExpectationFailed,
"size mismatch, expected %d bytes, received %d bytes",
sizeErr.DeclaredSize, sizeErr.ActualSize)
}
if checksumErr, ok := err.(fileserver.ErrFileChecksumMismatch); ok {
return sendAPIError(e, http.StatusExpectationFailed,
"checksum mismatch, expected %d bytes, received %d bytes",
checksumErr.DeclaredChecksum, checksumErr.ActualChecksum)
}
return sendAPIError(e, http.StatusInternalServerError, "unexpected error: %v", err)
}
return nil
}