Fix recovery middleware to render gitea style page. (#13857)

* Some changes to fix recovery

* Move Recovery to middlewares

* Remove trace code

* Fix lint

* add session middleware and remove dependent on macaron for sso

* Fix panic 500 page rendering

* Fix bugs

* Fix fmt

* Fix vendor

* recover unnecessary change

* Fix lint and addd some comments about the copied codes.

* Use util.StatDir instead of com.StatDir

Co-authored-by: 6543 <6543@obermui.de>

modules/templates/static.go

@@ -12,7 +12,9 @@ import (
 	"html/template"
 	"io"
 	"io/ioutil"
+	"os"
 	"path"
+	"path/filepath"
 	"strings"
 	texttmpl "text/template"
 
@@ -46,6 +48,30 @@ func (templates templateFileSystem) Get(name string) (io.Reader, error) {
 	return nil, fmt.Errorf("file '%s' not found", name)
 }
 
+// GetAsset get a special asset, only for chi
+func GetAsset(name string) ([]byte, error) {
+	bs, err := ioutil.ReadFile(filepath.Join(setting.CustomPath, name))
+	if err != nil && !os.IsNotExist(err) {
+		return nil, err
+	} else if err == nil {
+		return bs, nil
+	}
+	return Asset(strings.TrimPrefix(name, "templates/"))
+}
+
+// GetAssetNames only for chi
+func GetAssetNames() []string {
+	realFS := Assets.(vfsgen۰FS)
+	var tmpls = make([]string, 0, len(realFS))
+	for k := range realFS {
+		tmpls = append(tmpls, "templates/"+k[1:])
+	}
+
+	customDir := path.Join(setting.CustomPath, "templates")
+	customTmpls := getDirAssetNames(customDir)
+	return append(tmpls, customTmpls...)
+}
+
 func NewTemplateFileSystem() templateFileSystem {
 	fs := templateFileSystem{}
 	fs.files = make([]macaron.TemplateFile, 0, 10)