// Init implements cmd.Command.Init. It will return an error satisfying
// errors.BadRequest if you give it an incorrect number of arguments.
func (c *ShowServiceCommand) Init(args []string) error {
if len(args) == 0 {
return errors.NewBadRequest(nil, "missing service name")
}
c.target = args[0]
if err := cmd.CheckEmpty(args[1:]); err != nil {
return errors.NewBadRequest(err, "")
}
return nil
}
func (h *charmsHandler) serveGet(w http.ResponseWriter, r *http.Request) error {
// TODO (bug #1499338 2015/09/24) authenticate this.
st, err := h.ctxt.stateForRequestUnauthenticated(r)
if err != nil {
return errors.Trace(err)
}
// Retrieve or list charm files.
// Requires "url" (charm URL) and an optional "file" (the path to the
// charm file) to be included in the query.
charmArchivePath, filePath, err := h.processGet(r, st)
if err != nil {
// An error occurred retrieving the charm bundle.
if errors.IsNotFound(err) {
return errors.Trace(err)
}
return errors.NewBadRequest(err, "")
}
var sender bundleContentSenderFunc
switch filePath {
case "":
// The client requested the list of charm files.
sender = h.manifestSender
case "*":
// The client requested the archive.
sender = h.archiveSender
default:
// The client requested a specific file.
sender = h.archiveEntrySender(filePath)
}
if err := h.sendBundleContent(w, r, charmArchivePath, sender); err != nil {
return errors.Trace(err)
}
return nil
}
func (h *toolsDownloadHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
st, err := h.ctxt.stateForRequestUnauthenticated(r)
if err != nil {
if err := sendError(w, err); err != nil {
logger.Errorf("%v", err)
}
return
}
switch r.Method {
case "GET":
tarball, err := h.processGet(r, st)
if err != nil {
logger.Errorf("GET(%s) failed: %v", r.URL, err)
if err := sendError(w, errors.NewBadRequest(err, "")); err != nil {
logger.Errorf("%v", err)
}
return
}
if err := h.sendTools(w, http.StatusOK, tarball); err != nil {
logger.Errorf("%v", err)
}
default:
if err := sendError(w, errors.MethodNotAllowedf("unsupported method: %q", r.Method)); err != nil {
logger.Errorf("%v", err)
}
}
}
// RestoreError makes a best effort at converting the given error
// back into an error originally converted by ServerError(). If the
// error could not be converted then false is returned.
func RestoreError(err error) (error, bool) {
err = errors.Cause(err)
if apiErr, ok := err.(*params.Error); !ok {
return err, false
} else if apiErr == nil {
return nil, true
}
if params.ErrCode(err) == "" {
return err, false
}
msg := err.Error()
if singleton, ok := singletonError(err); ok {
return singleton, true
}
// TODO(ericsnow) Support the other error types handled by ServerError().
switch {
case params.IsCodeUnauthorized(err):
return errors.NewUnauthorized(nil, msg), true
case params.IsCodeNotFound(err):
// TODO(ericsnow) UnknownModelError should be handled here too.
// ...by parsing msg?
return errors.NewNotFound(nil, msg), true
case params.IsCodeAlreadyExists(err):
return errors.NewAlreadyExists(nil, msg), true
case params.IsCodeNotAssigned(err):
return errors.NewNotAssigned(nil, msg), true
case params.IsCodeHasAssignedUnits(err):
// TODO(ericsnow) Handle state.HasAssignedUnitsError here.
// ...by parsing msg?
return err, false
case params.IsCodeNoAddressSet(err):
// TODO(ericsnow) Handle isNoAddressSetError here.
// ...by parsing msg?
return err, false
case params.IsCodeNotProvisioned(err):
return errors.NewNotProvisioned(nil, msg), true
case params.IsCodeUpgradeInProgress(err):
// TODO(ericsnow) Handle state.UpgradeInProgressError here.
// ...by parsing msg?
return err, false
case params.IsCodeMachineHasAttachedStorage(err):
// TODO(ericsnow) Handle state.HasAttachmentsError here.
// ...by parsing msg?
return err, false
case params.IsCodeNotSupported(err):
return errors.NewNotSupported(nil, msg), true
case params.IsBadRequest(err):
return errors.NewBadRequest(nil, msg), true
case params.IsMethodNotAllowed(err):
return errors.NewMethodNotAllowed(nil, msg), true
case params.ErrCode(err) == params.CodeDischargeRequired:
// TODO(ericsnow) Handle DischargeRequiredError here.
return err, false
default:
return err, false
}
}
// sendTools streams the tools tarball to the client.
func (h *toolsDownloadHandler) sendTools(w http.ResponseWriter, statusCode int, tarball []byte) {
w.Header().Set("Content-Type", "application/x-tar-gz")
w.Header().Set("Content-Length", fmt.Sprint(len(tarball)))
w.WriteHeader(statusCode)
if _, err := w.Write(tarball); err != nil {
sendError(w, errors.NewBadRequest(errors.Annotatef(err, "failed to write tools"), ""))
return
}
}
// processPost handles a tools upload POST request after authentication.
func (h *toolsUploadHandler) processPost(r *http.Request, st *state.State) (*tools.Tools, error) {
query := r.URL.Query()
binaryVersionParam := query.Get("binaryVersion")
if binaryVersionParam == "" {
return nil, errors.BadRequestf("expected binaryVersion argument")
}
toolsVersion, err := version.ParseBinary(binaryVersionParam)
if err != nil {
return nil, errors.NewBadRequest(err, fmt.Sprintf("invalid tools version %q", binaryVersionParam))
}
// Make sure the content type is x-tar-gz.
contentType := r.Header.Get("Content-Type")
if contentType != "application/x-tar-gz" {
return nil, errors.BadRequestf("expected Content-Type: application/x-tar-gz, got: %v", contentType)
}
// Get the server root, so we know how to form the URL in the Tools returned.
serverRoot, err := h.getServerRoot(r, query, st)
if err != nil {
return nil, errors.NewBadRequest(err, "cannot to determine server root")
}
// We'll clone the tools for each additional series specified.
var cloneSeries []string
if seriesParam := query.Get("series"); seriesParam != "" {
cloneSeries = strings.Split(seriesParam, ",")
}
logger.Debugf("request to upload tools: %s", toolsVersion)
logger.Debugf("additional series: %s", cloneSeries)
toolsVersions := []version.Binary{toolsVersion}
for _, series := range cloneSeries {
if series != toolsVersion.Series {
v := toolsVersion
v.Series = series
toolsVersions = append(toolsVersions, v)
}
}
return h.handleUpload(r.Body, toolsVersions, serverRoot, st)
}
func (h *charmsHandler) servePost(w http.ResponseWriter, r *http.Request) error {
st, _, err := h.ctxt.stateForRequestAuthenticatedUser(r)
if err != nil {
return errors.Trace(err)
}
// Add a charm to the store provider.
charmURL, err := h.processPost(r, st)
if err != nil {
return errors.NewBadRequest(err, "")
}
sendStatusAndJSON(w, http.StatusOK, ¶ms.CharmsResponse{CharmURL: charmURL.String()})
return nil
}
func getGUIComboPath(rootDir, query string) (string, error) {
k := strings.SplitN(query, "=", 2)[0]
fname, err := url.QueryUnescape(k)
if err != nil {
return "", errors.NewBadRequest(err, fmt.Sprintf("invalid file name %q", k))
}
// Ignore pat injected queries.
if strings.HasPrefix(fname, ":") {
return "", nil
}
// The Juju GUI references its combined files starting from the
// "static/gui/build" directory.
fname = filepath.Clean(fname)
if fname == ".." || strings.HasPrefix(fname, "../") {
return "", errors.BadRequestf("forbidden file path %q", k)
}
return filepath.Join(rootDir, "static", "gui", "build", fname), nil
}
func (h *charmsHandler) ServeGet(w http.ResponseWriter, r *http.Request) error {
if r.Method != "GET" {
return errors.Trace(emitUnsupportedMethodErr(r.Method))
}
st, _, err := h.ctxt.stateForRequestAuthenticated(r)
if err != nil {
return errors.Trace(err)
}
// Retrieve or list charm files.
// Requires "url" (charm URL) and an optional "file" (the path to the
// charm file) to be included in the query. Optionally also receives an
// "icon" query for returning the charm icon or a default one in case the
// charm has no icon.
charmArchivePath, fileArg, serveIcon, err := h.processGet(r, st)
if err != nil {
// An error occurred retrieving the charm bundle.
if errors.IsNotFound(err) {
return errors.Trace(err)
}
return errors.NewBadRequest(err, "")
}
defer os.Remove(charmArchivePath)
var sender bundleContentSenderFunc
switch fileArg {
case "":
// The client requested the list of charm files.
sender = h.manifestSender
case "*":
// The client requested the archive.
sender = h.archiveSender
default:
// The client requested a specific file.
sender = h.archiveEntrySender(fileArg, serveIcon)
}
return errors.Trace(sendBundleContent(w, r, charmArchivePath, sender))
}
// Init implements cmd.Command.Init. It will return an error satisfying
// errors.BadRequest if you give it an incorrect number of arguments.
func (c *UploadCommand) Init(args []string) error {
switch len(args) {
case 0:
return errors.BadRequestf("missing application name")
case 1:
return errors.BadRequestf("no resource specified")
}
service := args[0]
if service == "" { // TODO(ericsnow) names.IsValidApplication
return errors.NewNotValid(nil, "missing application name")
}
c.service = service
if err := c.addResourceFile(args[1]); err != nil {
return errors.Trace(err)
}
if err := cmd.CheckEmpty(args[2:]); err != nil {
return errors.NewBadRequest(err, "")
}
return nil
}
// handlePut is used to switch to a specific Juju GUI version.
func (h *guiVersionHandler) handlePut(w http.ResponseWriter, req *http.Request) error {
// Validate the request.
if ctype := req.Header.Get("Content-Type"); ctype != params.ContentTypeJSON {
return errors.BadRequestf("invalid content type %q: expected %q", ctype, params.ContentTypeJSON)
}
// Authenticate the request and retrieve the Juju state.
st, _, err := h.ctxt.stateForRequestAuthenticatedUser(req)
if err != nil {
return errors.Annotate(err, "cannot open state")
}
var selected params.GUIVersionRequest
decoder := json.NewDecoder(req.Body)
if err := decoder.Decode(&selected); err != nil {
return errors.NewBadRequest(err, "invalid request body")
}
// Switch to the provided GUI version.
if err = st.GUISetVersion(selected.Version); err != nil {
return errors.Trace(err)
}
return nil
}
// processPost handles a charm upload POST request after authentication.
func (h *charmsHandler) processPost(r *http.Request, st *state.State) (*charm.URL, error) {
query := r.URL.Query()
schema := query.Get("schema")
if schema == "" {
schema = "local"
}
series := query.Get("series")
if series != "" {
if err := charm.ValidateSeries(series); err != nil {
return nil, errors.NewBadRequest(err, "")
}
}
// Make sure the content type is zip.
contentType := r.Header.Get("Content-Type")
if contentType != "application/zip" {
return nil, errors.BadRequestf("expected Content-Type: application/zip, got: %v", contentType)
}
charmFileName, err := writeCharmToTempFile(r.Body)
if err != nil {
return nil, errors.Trace(err)
}
defer os.Remove(charmFileName)
err = h.processUploadedArchive(charmFileName)
if err != nil {
return nil, err
}
archive, err := charm.ReadCharmArchive(charmFileName)
if err != nil {
return nil, errors.BadRequestf("invalid charm archive: %v", err)
}
name := archive.Meta().Name
if err := charm.ValidateName(name); err != nil {
return nil, errors.NewBadRequest(err, "")
}
// We got it, now let's reserve a charm URL for it in state.
curl := &charm.URL{
Schema: schema,
Name: archive.Meta().Name,
Revision: archive.Revision(),
Series: series,
}
if schema == "local" {
curl, err = st.PrepareLocalCharmUpload(curl)
if err != nil {
return nil, errors.Trace(err)
}
} else {
// "cs:" charms may only be uploaded into models which are
// being imported during model migrations. There's currently
// no other time where it makes sense to accept charm store
// charms through this endpoint.
if isImporting, err := modelIsImporting(st); err != nil {
return nil, errors.Trace(err)
} else if !isImporting {
return nil, errors.New("cs charms may only be uploaded during model migration import")
}
// If a revision argument is provided, it takes precedence
// over the revision in the charm archive. This is required to
// handle the revision differences between unpublished and
// published charms in the charm store.
revisionStr := query.Get("revision")
if revisionStr != "" {
curl.Revision, err = strconv.Atoi(revisionStr)
if err != nil {
return nil, errors.NewBadRequest(errors.NewNotValid(err, "revision"), "")
}
}
if _, err := st.PrepareStoreCharmUpload(curl); err != nil {
return nil, errors.Trace(err)
}
}
// Now we need to repackage it with the reserved URL, upload it to
// provider storage and update the state.
err = h.repackageAndUploadCharm(st, archive, curl)
if err != nil {
return nil, errors.Trace(err)
}
return curl, nil
}