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settings.go
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settings.go
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package http
import (
"bytes"
"encoding/json"
"net/http"
"reflect"
fm "github.com/filebrowser/filebrowser"
"github.com/mitchellh/mapstructure"
)
type modifySettingsRequest struct {
modifyRequest
Data struct {
CSS string `json:"css"`
Commands map[string][]string `json:"commands"`
StaticGen map[string]interface{} `json:"staticGen"`
} `json:"data"`
}
type option struct {
Variable string `json:"variable"`
Name string `json:"name"`
Value interface{} `json:"value"`
}
func parsePutSettingsRequest(r *http.Request) (*modifySettingsRequest, error) {
// Checks if the request body is empty.
if r.Body == nil {
return nil, fm.ErrEmptyRequest
}
// Parses the request body and checks if it's well formed.
mod := &modifySettingsRequest{}
err := json.NewDecoder(r.Body).Decode(mod)
if err != nil {
return nil, err
}
// Checks if the request type is right.
if mod.What != "settings" {
return nil, fm.ErrWrongDataType
}
return mod, nil
}
func settingsHandler(c *fm.Context, w http.ResponseWriter, r *http.Request) (int, error) {
if r.URL.Path != "" && r.URL.Path != "/" {
return http.StatusNotFound, nil
}
switch r.Method {
case http.MethodGet:
return settingsGetHandler(c, w, r)
case http.MethodPut:
return settingsPutHandler(c, w, r)
}
return http.StatusMethodNotAllowed, nil
}
type settingsGetRequest struct {
CSS string `json:"css"`
Commands map[string][]string `json:"commands"`
StaticGen []option `json:"staticGen"`
}
func settingsGetHandler(c *fm.Context, w http.ResponseWriter, r *http.Request) (int, error) {
if !c.User.Admin {
return http.StatusForbidden, nil
}
result := &settingsGetRequest{
Commands: c.Commands,
StaticGen: []option{},
CSS: c.CSS,
}
if c.StaticGen != nil {
t := reflect.TypeOf(c.StaticGen).Elem()
for i := 0; i < t.NumField(); i++ {
if t.Field(i).Name[0] == bytes.ToLower([]byte{t.Field(i).Name[0]})[0] {
continue
}
result.StaticGen = append(result.StaticGen, option{
Variable: t.Field(i).Name,
Name: t.Field(i).Tag.Get("name"),
Value: reflect.ValueOf(c.StaticGen).Elem().FieldByName(t.Field(i).Name).Interface(),
})
}
}
return renderJSON(w, result)
}
func settingsPutHandler(c *fm.Context, w http.ResponseWriter, r *http.Request) (int, error) {
if !c.User.Admin {
return http.StatusForbidden, nil
}
mod, err := parsePutSettingsRequest(r)
if err != nil {
return http.StatusBadRequest, err
}
// Update the commands.
if mod.Which == "commands" {
if err := c.Store.Config.Save("commands", mod.Data.Commands); err != nil {
return http.StatusInternalServerError, err
}
c.Commands = mod.Data.Commands
return http.StatusOK, nil
}
// Update the global CSS.
if mod.Which == "css" {
if err := c.Store.Config.Save("css", mod.Data.CSS); err != nil {
return http.StatusInternalServerError, err
}
c.CSS = mod.Data.CSS
return http.StatusOK, nil
}
// Update the static generator options.
if mod.Which == "staticGen" {
err = mapstructure.Decode(mod.Data.StaticGen, c.StaticGen)
if err != nil {
return http.StatusInternalServerError, err
}
err = c.Store.Config.Save("staticgen_"+c.StaticGen.Name(), c.StaticGen)
if err != nil {
return http.StatusInternalServerError, err
}
return http.StatusOK, nil
}
return http.StatusMethodNotAllowed, nil
}