WebClient: allow to set a list of default CSS

The new WIP WebClient requires 2 CSS files

Signed-off-by: Nicola Murino <nicola.murino@gmail.com>

docs/full-configuration.md

@@ -357,7 +357,7 @@ The configuration file contains the following sections:
       - `login_image_path`, string. Path to a custom image to show on the login screen relative to `static_files_path`. The preferred image size is 900x900 pixel
       - `disclaimer_name`, string. Name for your optional disclaimer
       - `disclaimer_path`, string. Path to the HTML page with the disclaimer relative to `static_files_path`
-      - `default_css`, string. Optional path to a custom CSS file, relative to `static_files_path`, which replaces the SB Admin2 default CSS
+      - `default_css`, list of strings. Optional path to custom CSS files, relative to `static_files_path`, which replaces the default CSS
       - `extra_css`, list of strings. Defines the paths, relative to `static_files_path`, to additional CSS files
   - `templates_path`, string. Path to the HTML web templates. This can be an absolute path or a path relative to the config dir
   - `static_files_path`, string. Path to the static files for the web interface. This can be an absolute path or a path relative to the config dir. If both `templates_path` and `static_files_path` are empty the built-in web interface will be disabled

internal/config/config.go

@@ -1667,7 +1667,7 @@ func getHTTPDUIBrandingFromEnv(prefix string, branding httpd.UIBranding) (httpd.
 		isSet = true
 	}
 
-	defaultCSSPath, ok := os.LookupEnv(fmt.Sprintf("%s__DEFAULT_CSS", prefix))
+	defaultCSSPath, ok := lookupStringListFromEnv(fmt.Sprintf("%s__DEFAULT_CSS", prefix))
 	if ok {
 		branding.DefaultCSS = defaultCSSPath
 		isSet = true

internal/config/config_test.go

@@ -1417,7 +1417,7 @@ func TestHTTPDBindingsFromEnv(t *testing.T) {
 	require.Equal(t, "login_image.png", bindings[2].Branding.WebAdmin.LoginImagePath)
 	require.Equal(t, "disclaimer", bindings[2].Branding.WebClient.DisclaimerName)
 	require.Equal(t, "disclaimer.html", bindings[2].Branding.WebAdmin.DisclaimerPath)
-	require.Equal(t, "default.css", bindings[2].Branding.WebClient.DefaultCSS)
+	require.Equal(t, []string{"default.css"}, bindings[2].Branding.WebClient.DefaultCSS)
 	require.Len(t, bindings[2].Branding.WebClient.ExtraCSS, 2)
 	require.Equal(t, "1.css", bindings[2].Branding.WebClient.ExtraCSS[0])
 	require.Equal(t, "2.css", bindings[2].Branding.WebClient.ExtraCSS[1])

internal/httpd/httpd.go

@@ -405,15 +405,14 @@ type UIBranding struct {
 	DisclaimerName string `json:"disclaimer_name" mapstructure:"disclaimer_name"`
 	// Path to the HTML page for your disclaimer relative to "static_files_path".
 	DisclaimerPath string `json:"disclaimer_path" mapstructure:"disclaimer_path"`
-	// Path to a custom CSS file, relative to "static_files_path", which replaces
+	// Path to custom CSS files, relative to "static_files_path", which replaces
-	// the SB Admin2 default CSS. This is useful, for example, if you rebuild
+	// the default CSS files
-	// SB Admin2 CSS to use custom colors
+	DefaultCSS []string `json:"default_css" mapstructure:"default_css"`
-	DefaultCSS string `json:"default_css" mapstructure:"default_css"`
 	// Additional CSS file paths, relative to "static_files_path", to include
 	ExtraCSS []string `json:"extra_css" mapstructure:"extra_css"`
 }
 
-func (b *UIBranding) check() {
+func (b *UIBranding) check(isWebClient bool) {
 	if b.LogoPath != "" {
 		b.LogoPath = util.CleanPath(b.LogoPath)
 	} else {
@@ -432,10 +431,19 @@ func (b *UIBranding) check() {
 	if b.DisclaimerPath != "" {
 		b.DisclaimerPath = util.CleanPath(b.DisclaimerPath)
 	}
-	if b.DefaultCSS != "" {
+	if len(b.DefaultCSS) > 0 {
-		b.DefaultCSS = util.CleanPath(b.DefaultCSS)
+		for idx := range b.DefaultCSS {
+			b.DefaultCSS[idx] = util.CleanPath(b.DefaultCSS[idx])
+		}
 	} else {
-		b.DefaultCSS = "/css/sb-admin-2.min.css"
+		if isWebClient {
+			b.DefaultCSS = []string{
+				"/assets/plugins/global/plugins.bundle.css",
+				"/assets/css/style.bundle.css",
+			}
+		} else {
+			b.DefaultCSS = []string{"/css/sb-admin-2.min.css"}
+		}
 	}
 	for idx := range b.ExtraCSS {
 		b.ExtraCSS[idx] = util.CleanPath(b.ExtraCSS[idx])
@@ -534,8 +542,8 @@ type Binding struct {
 }
 
 func (b *Binding) checkBranding() {
-	b.Branding.WebAdmin.check()
+	b.Branding.WebAdmin.check(false)
-	b.Branding.WebClient.check()
+	b.Branding.WebClient.check(true)
 	if b.Branding.WebAdmin.Name == "" {
 		b.Branding.WebAdmin.Name = "SFTPGo WebAdmin"
 	}

internal/httpd/internal_test.go

@@ -331,7 +331,7 @@ func TestBrandingValidation(t *testing.T) {
 			WebAdmin: UIBranding{
 				LogoPath:       "path1",
 				LoginImagePath: "login1.png",
-				DefaultCSS:     "my.css",
+				DefaultCSS:     []string{"my.css"},
 			},
 			WebClient: UIBranding{
 				FaviconPath:    "favicon1.ico",
@@ -344,7 +344,7 @@ func TestBrandingValidation(t *testing.T) {
 	assert.Equal(t, "/favicon.ico", b.Branding.WebAdmin.FaviconPath)
 	assert.Equal(t, "/path1", b.Branding.WebAdmin.LogoPath)
 	assert.Equal(t, "/login1.png", b.Branding.WebAdmin.LoginImagePath)
-	assert.Equal(t, "/my.css", b.Branding.WebAdmin.DefaultCSS)
+	assert.Equal(t, []string{"/my.css"}, b.Branding.WebAdmin.DefaultCSS)
 	assert.Len(t, b.Branding.WebAdmin.ExtraCSS, 0)
 	assert.Equal(t, "/favicon1.ico", b.Branding.WebClient.FaviconPath)
 	assert.Equal(t, "/path2", b.Branding.WebClient.DisclaimerPath)

sftpgo.json

@@ -317,7 +317,7 @@
             "login_image_path": "",
             "disclaimer_name": "",
             "disclaimer_path": "",
-            "default_css": "",
+            "default_css": [],
             "extra_css": []
           },
           "web_client": {
@@ -328,7 +328,7 @@
             "login_image_path": "",
             "disclaimer_name": "",
             "disclaimer_path": "",
-            "default_css": "",
+            "default_css": [],
             "extra_css": []
           }
         }

templates/common/forgot-password.html

@@ -29,7 +29,9 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
     <link rel="shortcut icon" href="{{.StaticURL}}{{.Branding.FaviconPath}}" />
 
     <!-- Custom styles for this template-->
-    <link href="{{.StaticURL}}{{.Branding.DefaultCSS}}" rel="stylesheet">
+    {{- range .Branding.DefaultCSS}}
+    <link href="{{$.StaticURL}}{{.}}" rel="stylesheet" type="text/css">
+    {{- end}}
     <style>
         {{template "commoncss" .}}
     </style>

templates/common/reset-password.html

@@ -29,7 +29,9 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
     <link rel="shortcut icon" href="{{.StaticURL}}{{.Branding.FaviconPath}}" />
 
     <!-- Custom styles for this template-->
-    <link href="{{.StaticURL}}{{.Branding.DefaultCSS}}" rel="stylesheet">
+    {{- range .Branding.DefaultCSS}}
+    <link href="{{$.StaticURL}}{{.}}" rel="stylesheet" type="text/css">
+    {{- end}}
     <style>
         {{template "commoncss" .}}
     </style>

templates/webadmin/adminsetup.html

@@ -29,7 +29,9 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
     <link rel="shortcut icon" href="{{.StaticURL}}{{.Branding.FaviconPath}}" />
 
     <!-- Custom styles for this template-->
-    <link href="{{.StaticURL}}{{.Branding.DefaultCSS}}" rel="stylesheet">
+    {{- range .Branding.DefaultCSS}}
+    <link href="{{$.StaticURL}}{{.}}" rel="stylesheet" type="text/css">
+    {{- end}}
     <style>
         {{template "commoncss" .}}
     </style>

templates/webadmin/base.html

@@ -35,7 +35,9 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
     <link href="{{.StaticURL}}/vendor/fontawesome-free/css/regular.min.css" rel="stylesheet" type="text/css">
 
     <!-- Custom styles for this template-->
-    <link href="{{.StaticURL}}{{.Branding.DefaultCSS}}" rel="stylesheet">
+    {{- range .Branding.DefaultCSS}}
+    <link href="{{$.StaticURL}}{{.}}" rel="stylesheet" type="text/css">
+    {{- end}}
     <style>
         {{template "commoncss" .}}
     </style>

templates/webadmin/baselogin.html

@@ -30,7 +30,9 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
     <link rel="shortcut icon" href="{{.StaticURL}}{{.Branding.FaviconPath}}" />
 
     <!-- Custom styles for this template-->
-    <link href="{{.StaticURL}}{{.Branding.DefaultCSS}}" rel="stylesheet">
+    {{- range .Branding.DefaultCSS}}
+    <link href="{{$.StaticURL}}{{.}}" rel="stylesheet" type="text/css">
+    {{- end}}
     <style>
         {{template "commoncss" .}}
     </style>

templates/webclient/base.html

@@ -23,9 +23,10 @@ explicit grant from the SFTPGo Team (support@sftpgo.com).
 		<meta name="viewport" content="width=device-width, initial-scale=1" />
 		<link rel="shortcut icon" href="{{.StaticURL}}{{.Branding.FaviconPath}}" />
 		{{- template "fonts" .StaticURL }}
-		<link href="{{.StaticURL}}/assets/plugins/global/plugins.bundle.css" rel="stylesheet" type="text/css" />
+        {{- range .Branding.DefaultCSS}}
-		<link href="{{.StaticURL}}/assets/css/style.bundle.css" rel="stylesheet" type="text/css" />
+    	<link href="{{$.StaticURL}}{{.}}" rel="stylesheet" type="text/css">
-        {{- template "globalstyle" }}
+    	{{- end}}
+		{{- template "globalstyle" }}
 		{{- block "extra_css" .}}{{- end}}
     	{{- range .Branding.ExtraCSS}}
     	<link href="{{$.StaticURL}}{{.}}" rel="stylesheet" type="text/css">

templates/webclient/baselogin.html

@@ -23,8 +23,9 @@ explicit grant from the SFTPGo Team (support@sftpgo.com).
 		<meta name="viewport" content="width=device-width, initial-scale=1" />
 		<link rel="shortcut icon" href="{{.StaticURL}}{{.Branding.FaviconPath}}" />
 		{{- template "fonts" .StaticURL }}
-		<link href="{{.StaticURL}}/assets/plugins/global/plugins.bundle.css" rel="stylesheet" type="text/css" />
+		{{- range .Branding.DefaultCSS}}
-		<link href="{{.StaticURL}}/assets/css/style.bundle.css" rel="stylesheet" type="text/css" />
+    	<link href="{{$.StaticURL}}{{.}}" rel="stylesheet" type="text/css">
+    	{{- end}}
 		{{- template "globalstyle" }}
         {{- range .Branding.ExtraCSS}}
     	<link href="{{$.StaticURL}}{{.}}" rel="stylesheet" type="text/css">