// API entry point used to request a file be sent to the loader from the API.
// This would typically be called from a loader after it has received a
// manifest and determined updates to file system objects are required.
func getManifestFile(respWriter http.ResponseWriter, request *http.Request) {
loc := fmt.Sprintf("%s%s", ctx.Server.Host, request.URL.String())
opid := getOpID(request)
resource := cljs.New(loc)
defer func() {
if e := recover(); e != nil {
ctx.Channels.Log <- mig.Log{OpID: opid, Desc: fmt.Sprintf("%v", e)}.Err()
resource.SetError(cljs.Error{Code: fmt.Sprintf("%.0f", opid), Message: fmt.Sprintf("%v", e)})
respond(http.StatusInternalServerError, resource, respWriter, request)
}
ctx.Channels.Log <- mig.Log{OpID: opid, Desc: "leaving getManifestFile()"}.Debug()
}()
err := request.ParseForm()
if err != nil {
panic(err)
}
ctx.Channels.Log <- mig.Log{OpID: opid, Desc: fmt.Sprintf("Received manifest file request")}.Debug()
var manifestParam mig.ManifestParameters
err = json.Unmarshal([]byte(request.FormValue("parameters")), &manifestParam)
if err != nil {
panic(err)
}
err = manifestParam.ValidateFetch()
if err != nil {
panic(err)
}
loaderid := getLoaderID(request)
if loaderid == 0 {
panic("Request has no valid loader ID")
}
ctx.Channels.Log <- mig.Log{OpID: opid,
Desc: fmt.Sprintf("Loader request from %v for %v",
loaderid, manifestParam.Object)}.Debug()
// Update the loader entry with the parameters, and locate a valid manifest
mf, err := locateManifestFromLoader(loaderid, manifestParam.AgentIdentifier)
if err != nil {
panic(err)
}
data, err := mf.ManifestObject(manifestParam.Object)
if err != nil {
panic(err)
}
fetchresp := mig.ManifestFetchResponse{Data: data}
// Send the response to the loader
err = resource.AddItem(cljs.Item{
Href: request.URL.String(),
Data: []cljs.Data{
{
Name: "content",
Value: fetchresp,
},
}})
if err != nil {
panic(err)
}
respond(http.StatusOK, resource, respWriter, request)
}
