func handleSetupChange(rw http.ResponseWriter, req *http.Request) {
hilevelConf, err := jsonconfig.ReadFile(osutil.UserServerConfigPath())
if err != nil {
httputil.ServeError(rw, req, err)
return
}
if !xsrftoken.Valid(req.FormValue("token"), serverKey, "user", "wizardSave") {
http.Error(rw, "Form expired. Press back and reload form.", http.StatusBadRequest)
log.Printf("invalid xsrf token=%q", req.FormValue("token"))
return
}
hasChanged := false
var el interface{}
publish := jsonconfig.Obj{}
for k, v := range req.Form {
if _, ok := hilevelConf[k]; !ok {
if k != "gallery" && k != "blog" {
continue
}
}
switch k {
case "https", "shareHandler":
b, err := strconv.ParseBool(v[0])
if err != nil {
httputil.ServeError(rw, req, fmt.Errorf("%v field expects a boolean value", k))
}
el = b
default:
el = v[0]
}
if reflect.DeepEqual(hilevelConf[k], el) {
continue
}
hasChanged = true
hilevelConf[k] = el
}
// "publish" wasn't checked yet
if !reflect.DeepEqual(hilevelConf["publish"], publish) {
hilevelConf["publish"] = publish
hasChanged = true
}
if hasChanged {
err = rewriteConfig(&hilevelConf, osutil.UserServerConfigPath())
if err != nil {
httputil.ServeError(rw, req, err)
return
}
err = osutil.RestartProcess()
if err != nil {
log.Fatal("Failed to restart: " + err.Error())
http.Error(rw, "Failed to restart process", 500)
return
}
}
sendWizard(rw, req, hasChanged)
}
func sendWizard(rw http.ResponseWriter, req *http.Request, hasChanged bool) {
config, err := jsonconfig.ReadFile(osutil.UserServerConfigPath())
if err != nil {
httputil.ServeError(rw, req, err)
return
}
err = flattenPublish(config)
if err != nil {
httputil.ServeError(rw, req, err)
return
}
funcMap := template.FuncMap{
"printWizard": printWizard,
"showField": func(inputName string) bool {
if _, ok := ignoredFields[inputName]; ok {
return false
}
return true
},
"genXSRF": func() string {
return xsrftoken.Generate(serverKey, "user", "wizardSave")
},
}
body := `
<form id="WizardForm" method="POST" enctype="multipart/form-data">
<table>
{{range $k,$v := .}}{{if showField $k}}<tr><td>{{printf "%v" $k}}</td><td><input type="text" size="30" name ="{{printf "%v" $k}}" value="{{printWizard $v}}" ></td></tr>{{end}}{{end}}
</table>
<input type="hidden" name="token" value="{{genXSRF}}">
<input type="submit" form="WizardForm" value="Save"> (Will restart server.)</form>`
if hasChanged {
body += `<p> Configuration succesfully rewritten </p>`
}
tmpl, err := template.New("wizard").Funcs(funcMap).Parse(topWizard + body + bottomWizard)
if err != nil {
httputil.ServeError(rw, req, err)
return
}
err = tmpl.Execute(rw, config)
if err != nil {
httputil.ServeError(rw, req, err)
return
}
}
// serverKeyId returns the public gpg key id ("identity" field)
// from the user's server config , if any.
// It returns the empty string otherwise.
func serverKeyId() string {
serverConfigFile := osutil.UserServerConfigPath()
if _, err := wkfs.Stat(serverConfigFile); err != nil {
if os.IsNotExist(err) {
return ""
}
log.Fatalf("Could not stat %v: %v", serverConfigFile, err)
}
obj, err := jsonconfig.ReadFile(serverConfigFile)
if err != nil {
return ""
}
keyId, ok := obj["identity"].(string)
if !ok {
return ""
}
return keyId
}