306 lines
7.1 KiB
Go
306 lines
7.1 KiB
Go
// Package ctrladmin provides HTTP handlers for admin UI
|
|
package ctrladmin
|
|
|
|
import (
|
|
"encoding/gob"
|
|
"errors"
|
|
"fmt"
|
|
"html/template"
|
|
"log"
|
|
"net/http"
|
|
"net/url"
|
|
"path/filepath"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/Masterminds/sprig"
|
|
"github.com/dustin/go-humanize"
|
|
"github.com/gorilla/securecookie"
|
|
"github.com/gorilla/sessions"
|
|
"github.com/oxtoacart/bpool"
|
|
"github.com/wader/gormstore"
|
|
|
|
"go.senan.xyz/gonic/server/assets"
|
|
"go.senan.xyz/gonic/server/ctrlbase"
|
|
"go.senan.xyz/gonic/server/db"
|
|
"go.senan.xyz/gonic/version"
|
|
)
|
|
|
|
type CtxKey int
|
|
|
|
const (
|
|
CtxUser CtxKey = iota
|
|
CtxSession
|
|
)
|
|
|
|
// extendFromPaths /extends/ the given template for every asset
|
|
// with given prefix
|
|
func extendFromPaths(b *template.Template, p string) *template.Template {
|
|
assets.PrefixDo(p, func(_ string, asset *assets.EmbeddedAsset) {
|
|
tmplStr := string(asset.Bytes)
|
|
b = template.Must(b.Parse(tmplStr))
|
|
})
|
|
return b
|
|
}
|
|
|
|
// extendFromPaths /clones/ the given template for every asset
|
|
// with given prefix, extends it, and insert it into a new map
|
|
func pagesFromPaths(b *template.Template, p string) map[string]*template.Template {
|
|
ret := map[string]*template.Template{}
|
|
assets.PrefixDo(p, func(path string, asset *assets.EmbeddedAsset) {
|
|
tmplKey := filepath.Base(path)
|
|
clone := template.Must(b.Clone())
|
|
tmplStr := string(asset.Bytes)
|
|
ret[tmplKey] = template.Must(clone.Parse(tmplStr))
|
|
})
|
|
return ret
|
|
}
|
|
|
|
const (
|
|
prefixPartials = "partials"
|
|
prefixLayouts = "layouts"
|
|
prefixPages = "pages"
|
|
)
|
|
|
|
func funcMap() template.FuncMap {
|
|
return template.FuncMap{
|
|
"noCache": func(in string) string {
|
|
parsed, _ := url.Parse(in)
|
|
params := parsed.Query()
|
|
params.Set("v", version.VERSION)
|
|
parsed.RawQuery = params.Encode()
|
|
return parsed.String()
|
|
},
|
|
"date": func(in time.Time) string {
|
|
return strings.ToLower(in.Format("Jan 02, 2006"))
|
|
},
|
|
"dateHuman": humanize.Time,
|
|
}
|
|
}
|
|
|
|
type Controller struct {
|
|
*ctrlbase.Controller
|
|
buffPool *bpool.BufferPool
|
|
templates map[string]*template.Template
|
|
sessDB *gormstore.Store
|
|
}
|
|
|
|
func New(b *ctrlbase.Controller) *Controller {
|
|
sessionKey := []byte(b.DB.GetSetting("session_key"))
|
|
if len(sessionKey) == 0 {
|
|
sessionKey = securecookie.GenerateRandomKey(32)
|
|
b.DB.SetSetting("session_key", string(sessionKey))
|
|
}
|
|
tmplBase := template.
|
|
New("layout").
|
|
Funcs(sprig.FuncMap()).
|
|
Funcs(funcMap()). // static
|
|
Funcs(template.FuncMap{ // from base
|
|
"path": b.Path,
|
|
})
|
|
tmplBase = extendFromPaths(tmplBase, prefixPartials)
|
|
tmplBase = extendFromPaths(tmplBase, prefixLayouts)
|
|
sessDB := gormstore.New(b.DB.DB, sessionKey)
|
|
sessDB.SessionOpts.HttpOnly = true
|
|
sessDB.SessionOpts.SameSite = http.SameSiteLaxMode
|
|
return &Controller{
|
|
Controller: b,
|
|
buffPool: bpool.NewBufferPool(64),
|
|
templates: pagesFromPaths(tmplBase, prefixPages),
|
|
sessDB: sessDB,
|
|
}
|
|
}
|
|
|
|
type templateData struct {
|
|
// common
|
|
Flashes []interface{}
|
|
User *db.User
|
|
Version string
|
|
// home
|
|
AlbumCount int
|
|
ArtistCount int
|
|
TrackCount int
|
|
RequestRoot string
|
|
RecentFolders []*db.Album
|
|
AllUsers []*db.User
|
|
LastScanTime time.Time
|
|
IsScanning bool
|
|
Playlists []*db.Playlist
|
|
TranscodePreferences []*db.TranscodePreference
|
|
TranscodeProfiles []string
|
|
//
|
|
CurrentLastFMAPIKey string
|
|
CurrentLastFMAPISecret string
|
|
SelectedUser *db.User
|
|
}
|
|
|
|
type Response struct {
|
|
// code is 200
|
|
template string
|
|
data *templateData
|
|
// code is 303
|
|
redirect string
|
|
flashN []string // normal
|
|
flashW []string // warning
|
|
// code is >= 400
|
|
code int
|
|
err string
|
|
}
|
|
|
|
type (
|
|
handlerAdmin func(r *http.Request) *Response
|
|
handlerAdminRaw func(w http.ResponseWriter, r *http.Request)
|
|
)
|
|
|
|
func (c *Controller) H(h handlerAdmin) http.Handler {
|
|
// TODO: break this up a bit
|
|
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
resp := h(r)
|
|
session, ok := r.Context().Value(CtxSession).(*sessions.Session)
|
|
if ok {
|
|
sessAddFlashN(session, resp.flashN)
|
|
sessAddFlashW(session, resp.flashW)
|
|
if err := session.Save(r, w); err != nil {
|
|
http.Error(w, fmt.Sprintf("error saving session: %v", err), 500)
|
|
return
|
|
}
|
|
}
|
|
if resp.redirect != "" {
|
|
to := resp.redirect
|
|
if strings.HasPrefix(to, "/") {
|
|
to = c.Path(to)
|
|
}
|
|
http.Redirect(w, r, to, http.StatusSeeOther)
|
|
return
|
|
}
|
|
if resp.err != "" {
|
|
http.Error(w, resp.err, resp.code)
|
|
return
|
|
}
|
|
if resp.template == "" {
|
|
http.Error(w, "useless handler return", 500)
|
|
return
|
|
}
|
|
if resp.data == nil {
|
|
resp.data = &templateData{}
|
|
}
|
|
resp.data.Version = version.VERSION
|
|
if session != nil {
|
|
resp.data.Flashes = session.Flashes()
|
|
if err := session.Save(r, w); err != nil {
|
|
http.Error(w, fmt.Sprintf("error saving session: %v", err), 500)
|
|
return
|
|
}
|
|
}
|
|
if user, ok := r.Context().Value(CtxUser).(*db.User); ok {
|
|
resp.data.User = user
|
|
}
|
|
buff := c.buffPool.Get()
|
|
defer c.buffPool.Put(buff)
|
|
tmpl, ok := c.templates[resp.template]
|
|
if !ok {
|
|
http.Error(w, fmt.Sprintf("finding template %q", resp.template), 500)
|
|
return
|
|
}
|
|
if err := tmpl.Execute(buff, resp.data); err != nil {
|
|
http.Error(w, fmt.Sprintf("executing template: %v", err), 500)
|
|
return
|
|
}
|
|
w.Header().Set("Content-Type", "text/html; charset=utf-8")
|
|
if resp.code != 0 {
|
|
w.WriteHeader(resp.code)
|
|
}
|
|
if _, err := buff.WriteTo(w); err != nil {
|
|
log.Printf("error writing to response buffer: %v\n", err)
|
|
}
|
|
})
|
|
}
|
|
|
|
func (c *Controller) HR(h handlerAdminRaw) http.Handler {
|
|
return http.HandlerFunc(h)
|
|
}
|
|
|
|
// ## begin utilities
|
|
// ## begin utilities
|
|
// ## begin utilities
|
|
|
|
type FlashType string
|
|
|
|
const (
|
|
FlashNormal = FlashType("normal")
|
|
FlashWarning = FlashType("warning")
|
|
)
|
|
|
|
type Flash struct {
|
|
Message string
|
|
Type FlashType
|
|
}
|
|
|
|
func init() {
|
|
gob.Register(&Flash{})
|
|
}
|
|
|
|
func sessAddFlashN(s *sessions.Session, messages []string) {
|
|
sessAddFlash(s, messages, FlashNormal)
|
|
}
|
|
|
|
func sessAddFlashW(s *sessions.Session, messages []string) {
|
|
sessAddFlash(s, messages, FlashWarning)
|
|
}
|
|
|
|
func sessAddFlash(s *sessions.Session, messages []string, flashT FlashType) {
|
|
if len(messages) == 0 {
|
|
return
|
|
}
|
|
for i, message := range messages {
|
|
if i > 6 {
|
|
break
|
|
}
|
|
s.AddFlash(Flash{
|
|
Message: message,
|
|
Type: flashT,
|
|
})
|
|
}
|
|
}
|
|
|
|
func sessLogSave(s *sessions.Session, w http.ResponseWriter, r *http.Request) {
|
|
if err := s.Save(r, w); err != nil {
|
|
log.Printf("error saving session: %v\n", err)
|
|
}
|
|
}
|
|
|
|
// ## begin validation
|
|
// ## begin validation
|
|
// ## begin validation
|
|
|
|
var (
|
|
errValiNoUsername = errors.New("please enter the password twice")
|
|
errValiPasswordAllFields = errors.New("please enter the password twice")
|
|
errValiPasswordsNotSame = errors.New("passwords entered were not the same")
|
|
errValiKeysAllFields = errors.New("please enter the api key and secret")
|
|
)
|
|
|
|
func validateUsername(username string) error {
|
|
if username == "" {
|
|
return errValiNoUsername
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func validatePasswords(pOne, pTwo string) error {
|
|
if pOne == "" || pTwo == "" {
|
|
return errValiPasswordAllFields
|
|
}
|
|
if !(pOne == pTwo) {
|
|
return errValiPasswordsNotSame
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func validateAPIKey(apiKey, secret string) error {
|
|
if apiKey == "" || secret == "" {
|
|
return errValiKeysAllFields
|
|
}
|
|
return nil
|
|
}
|