stash/pkg/api/server.go

428 lines
11 KiB
Go

package api
import (
"context"
"crypto/tls"
"errors"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"os"
"path"
"path/filepath"
"runtime/debug"
"strconv"
"strings"
"github.com/99designs/gqlgen/handler"
"github.com/go-chi/chi"
"github.com/go-chi/chi/middleware"
"github.com/gobuffalo/packr/v2"
"github.com/gorilla/websocket"
"github.com/rs/cors"
"github.com/stashapp/stash/pkg/database"
"github.com/stashapp/stash/pkg/logger"
"github.com/stashapp/stash/pkg/manager"
"github.com/stashapp/stash/pkg/manager/config"
"github.com/stashapp/stash/pkg/manager/paths"
"github.com/stashapp/stash/pkg/models"
"github.com/stashapp/stash/pkg/utils"
)
var version string
var buildstamp string
var githash string
var uiBox *packr.Box
//var legacyUiBox *packr.Box
var setupUIBox *packr.Box
var loginUIBox *packr.Box
func allowUnauthenticated(r *http.Request) bool {
return strings.HasPrefix(r.URL.Path, "/login") || r.URL.Path == "/css"
}
func authenticateHandler() func(http.Handler) http.Handler {
return func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
// translate api key into current user, if present
userID := ""
var err error
// handle session
userID, err = getSessionUserID(w, r)
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
w.Write([]byte(err.Error()))
return
}
// handle redirect if no user and user is required
if userID == "" && config.HasCredentials() && !allowUnauthenticated(r) {
// always allow
// if we don't have a userID, then redirect
// if graphql was requested, we just return a forbidden error
if r.URL.Path == "/graphql" {
w.Header().Add("WWW-Authenticate", `FormBased`)
w.WriteHeader(http.StatusUnauthorized)
return
}
// otherwise redirect to the login page
u := url.URL{
Path: "/login",
}
q := u.Query()
q.Set(returnURLParam, r.URL.Path)
u.RawQuery = q.Encode()
http.Redirect(w, r, u.String(), http.StatusFound)
return
}
ctx = context.WithValue(ctx, ContextUser, userID)
r = r.WithContext(ctx)
next.ServeHTTP(w, r)
})
}
}
const setupEndPoint = "/setup"
const migrateEndPoint = "/migrate"
const loginEndPoint = "/login"
func Start() {
uiBox = packr.New("UI Box", "../../ui/v2.5/build")
//legacyUiBox = packr.New("UI Box", "../../ui/v1/dist/stash-frontend")
setupUIBox = packr.New("Setup UI Box", "../../ui/setup")
loginUIBox = packr.New("Login UI Box", "../../ui/login")
initSessionStore()
initialiseImages()
r := chi.NewRouter()
r.Use(authenticateHandler())
r.Use(middleware.Recoverer)
if config.GetLogAccess() {
r.Use(middleware.Logger)
}
r.Use(middleware.DefaultCompress)
r.Use(middleware.StripSlashes)
r.Use(cors.AllowAll().Handler)
r.Use(BaseURLMiddleware)
r.Use(ConfigCheckMiddleware)
r.Use(DatabaseCheckMiddleware)
recoverFunc := handler.RecoverFunc(func(ctx context.Context, err interface{}) error {
logger.Error(err)
debug.PrintStack()
message := fmt.Sprintf("Internal system error. Error <%v>", err)
return errors.New(message)
})
websocketUpgrader := handler.WebsocketUpgrader(websocket.Upgrader{
CheckOrigin: func(r *http.Request) bool {
return true
},
})
gqlHandler := handler.GraphQL(models.NewExecutableSchema(models.Config{Resolvers: &Resolver{}}), recoverFunc, websocketUpgrader)
r.Handle("/graphql", gqlHandler)
r.Handle("/playground", handler.Playground("GraphQL playground", "/graphql"))
// session handlers
r.Post(loginEndPoint, handleLogin)
r.Get("/logout", handleLogout)
r.Get(loginEndPoint, getLoginHandler)
r.Mount("/gallery", galleryRoutes{}.Routes())
r.Mount("/performer", performerRoutes{}.Routes())
r.Mount("/scene", sceneRoutes{}.Routes())
r.Mount("/studio", studioRoutes{}.Routes())
r.Mount("/movie", movieRoutes{}.Routes())
r.Mount("/tag", tagRoutes{}.Routes())
r.Mount("/downloads", downloadsRoutes{}.Routes())
r.HandleFunc("/css", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/css")
if !config.GetCSSEnabled() {
return
}
// search for custom.css in current directory, then $HOME/.stash
fn := config.GetCSSPath()
exists, _ := utils.FileExists(fn)
if !exists {
return
}
http.ServeFile(w, r, fn)
})
// Serve the migration UI
r.Get("/migrate", getMigrateHandler)
r.Post("/migrate", doMigrateHandler)
// Serve the setup UI
r.HandleFunc("/setup*", func(w http.ResponseWriter, r *http.Request) {
ext := path.Ext(r.URL.Path)
if ext == ".html" || ext == "" {
data, _ := setupUIBox.Find("index.html")
_, _ = w.Write(data)
} else {
r.URL.Path = strings.Replace(r.URL.Path, "/setup", "", 1)
http.FileServer(setupUIBox).ServeHTTP(w, r)
}
})
r.HandleFunc("/login*", func(w http.ResponseWriter, r *http.Request) {
ext := path.Ext(r.URL.Path)
if ext == ".html" || ext == "" {
data, _ := loginUIBox.Find("login.html")
_, _ = w.Write(data)
} else {
r.URL.Path = strings.Replace(r.URL.Path, loginEndPoint, "", 1)
http.FileServer(loginUIBox).ServeHTTP(w, r)
}
})
r.Post("/init", func(w http.ResponseWriter, r *http.Request) {
err := r.ParseForm()
if err != nil {
http.Error(w, fmt.Sprintf("error: %s", err), 500)
}
stash := filepath.Clean(r.Form.Get("stash"))
generated := filepath.Clean(r.Form.Get("generated"))
metadata := filepath.Clean(r.Form.Get("metadata"))
cache := filepath.Clean(r.Form.Get("cache"))
//downloads := filepath.Clean(r.Form.Get("downloads")) // TODO
downloads := filepath.Join(metadata, "downloads")
exists, _ := utils.DirExists(stash)
if !exists || stash == "." {
http.Error(w, fmt.Sprintf("the stash path either doesn't exist, or is not a directory <%s>. Go back and try again.", stash), 500)
return
}
exists, _ = utils.DirExists(generated)
if !exists || generated == "." {
http.Error(w, fmt.Sprintf("the generated path either doesn't exist, or is not a directory <%s>. Go back and try again.", generated), 500)
return
}
exists, _ = utils.DirExists(metadata)
if !exists || metadata == "." {
http.Error(w, fmt.Sprintf("the metadata path either doesn't exist, or is not a directory <%s> Go back and try again.", metadata), 500)
return
}
exists, _ = utils.DirExists(cache)
if !exists || cache == "." {
http.Error(w, fmt.Sprintf("the cache path either doesn't exist, or is not a directory <%s> Go back and try again.", cache), 500)
return
}
_ = os.Mkdir(downloads, 0755)
// #536 - set stash as slice of strings
config.Set(config.Stash, []string{stash})
config.Set(config.Generated, generated)
config.Set(config.Metadata, metadata)
config.Set(config.Cache, cache)
config.Set(config.Downloads, downloads)
if err := config.Write(); err != nil {
http.Error(w, fmt.Sprintf("there was an error saving the config file: %s", err), 500)
return
}
manager.GetInstance().RefreshConfig()
http.Redirect(w, r, "/", 301)
})
startThumbCache()
// Serve static folders
customServedFolders := config.GetCustomServedFolders()
if customServedFolders != nil {
r.HandleFunc("/custom/*", func(w http.ResponseWriter, r *http.Request) {
r.URL.Path = strings.Replace(r.URL.Path, "/custom", "", 1)
// map the path to the applicable filesystem location
var dir string
r.URL.Path, dir = customServedFolders.GetFilesystemLocation(r.URL.Path)
if dir != "" {
http.FileServer(http.Dir(dir)).ServeHTTP(w, r)
} else {
http.NotFound(w, r)
}
})
}
// Serve the web app
r.HandleFunc("/*", func(w http.ResponseWriter, r *http.Request) {
ext := path.Ext(r.URL.Path)
if ext == ".html" || ext == "" {
data, _ := uiBox.Find("index.html")
_, _ = w.Write(data)
} else {
isStatic, _ := path.Match("/static/*/*", r.URL.Path)
if isStatic {
w.Header().Add("Cache-Control", "max-age=604800000")
}
http.FileServer(uiBox).ServeHTTP(w, r)
}
})
displayHost := config.GetHost()
if displayHost == "0.0.0.0" {
displayHost = "localhost"
}
displayAddress := displayHost + ":" + strconv.Itoa(config.GetPort())
address := config.GetHost() + ":" + strconv.Itoa(config.GetPort())
if tlsConfig := makeTLSConfig(); tlsConfig != nil {
httpsServer := &http.Server{
Addr: address,
Handler: r,
TLSConfig: tlsConfig,
}
go func() {
printVersion()
printLatestVersion()
logger.Infof("stash is listening on " + address)
logger.Infof("stash is running at https://" + displayAddress + "/")
logger.Fatal(httpsServer.ListenAndServeTLS("", ""))
}()
} else {
server := &http.Server{
Addr: address,
Handler: r,
}
go func() {
printVersion()
printLatestVersion()
logger.Infof("stash is listening on " + address)
logger.Infof("stash is running at http://" + displayAddress + "/")
logger.Fatal(server.ListenAndServe())
}()
}
}
func printVersion() {
versionString := githash
if version != "" {
versionString = version + " (" + versionString + ")"
}
fmt.Printf("stash version: %s - %s\n", versionString, buildstamp)
}
func GetVersion() (string, string, string) {
return version, githash, buildstamp
}
func makeTLSConfig() *tls.Config {
cert, err := ioutil.ReadFile(paths.GetSSLCert())
if err != nil {
return nil
}
key, err := ioutil.ReadFile(paths.GetSSLKey())
if err != nil {
return nil
}
certs := make([]tls.Certificate, 1)
certs[0], err = tls.X509KeyPair(cert, key)
if err != nil {
return nil
}
tlsConfig := &tls.Config{
Certificates: certs,
}
return tlsConfig
}
func HasTLSConfig() bool {
ret, _ := utils.FileExists(paths.GetSSLCert())
if ret {
ret, _ = utils.FileExists(paths.GetSSLKey())
}
return ret
}
type contextKey struct {
name string
}
var (
BaseURLCtxKey = &contextKey{"BaseURL"}
)
func BaseURLMiddleware(next http.Handler) http.Handler {
fn := func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
var scheme string
if strings.Compare("https", r.URL.Scheme) == 0 || r.Proto == "HTTP/2.0" || r.Header.Get("X-Forwarded-Proto") == "https" {
scheme = "https"
} else {
scheme = "http"
}
baseURL := scheme + "://" + r.Host
externalHost := config.GetExternalHost()
if externalHost != "" {
baseURL = externalHost
}
r = r.WithContext(context.WithValue(ctx, BaseURLCtxKey, baseURL))
next.ServeHTTP(w, r)
}
return http.HandlerFunc(fn)
}
func ConfigCheckMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
ext := path.Ext(r.URL.Path)
shouldRedirect := ext == "" && r.Method == "GET"
if !config.IsValid() && shouldRedirect {
// #539 - don't redirect if loading login page
if !strings.HasPrefix(r.URL.Path, setupEndPoint) && !strings.HasPrefix(r.URL.Path, loginEndPoint) {
http.Redirect(w, r, setupEndPoint, 301)
return
}
}
next.ServeHTTP(w, r)
})
}
func DatabaseCheckMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
ext := path.Ext(r.URL.Path)
shouldRedirect := ext == "" && r.Method == "GET"
if shouldRedirect && database.NeedsMigration() {
// #451 - don't redirect if loading login page
// #539 - or setup page
if !strings.HasPrefix(r.URL.Path, migrateEndPoint) && !strings.HasPrefix(r.URL.Path, loginEndPoint) && !strings.HasPrefix(r.URL.Path, setupEndPoint) {
http.Redirect(w, r, migrateEndPoint, 301)
return
}
}
next.ServeHTTP(w, r)
})
}