fix: allow option parsing if only one is present (#60)

src/middleware/options.go

@@ -1,6 +1,8 @@
 package middleware
 
-import "github.com/gin-gonic/gin"
+import (
+	"github.com/gin-gonic/gin"
+)
 
 func OptionsMiddleware() gin.HandlerFunc {
 	return func(c *gin.Context) {
@@ -8,24 +10,18 @@ func OptionsMiddleware() gin.HandlerFunc {
 		c.Set("theme", "dark")
 
 		imagesCookie, err := c.Cookie("disable_images")
-		if err != nil {
-			c.Next()
-			return
-		}
-
+		if err == nil {
 			if imagesCookie == "true" {
 				c.Set("disable_images", true)
 			}
-
-		themeCookie, err := c.Cookie("theme")
-		if err != nil {
-			c.Next()
-			return
 		}
 
+		themeCookie, err := c.Cookie("theme")
+		if err == nil {
 			if themeCookie == "light" {
 				c.Set("theme", "light")
 			}
+		}
 
 		c.Next()
 	}

src/routes/options.go

@@ -30,12 +30,10 @@ func ChangeOptions(c *gin.Context) {
 		if c.MustGet("theme").(string) == "dark" {
 			text = "light"
 		}
+
 		c.SetCookie("theme", text, 60*60*24*365*10, "/", "", false, true)
 		// get redirect url from query
 		redirectUrl := c.Query("redirect_url")
-		if redirectUrl == "" {
-			redirectUrl = os.Getenv("APP_URL")
-		}
 
 		if !strings.HasPrefix(redirectUrl, os.Getenv("APP_URL")) {
 			redirectUrl = os.Getenv("APP_URL")