make service used by QRCodeImage control configurable

Web/Controls/QRCodeImage.cs

@@ -0,0 +1,95 @@
+using System;
+using System.Globalization;
+using System.Web.UI;
+using System.Web.UI.WebControls;
+using log4net;
+using mojoPortal.Web.Framework;
+
+namespace mojoPortal.Web.UI;
+
+public class QRCodeImage : Image
+{
+	private static readonly ILog log = LogManager.GetLogger(typeof(QRCodeImage));
+
+	private readonly string QRCodeGeneratorUrl = ConfigHelper.GetStringProperty("QRCodeGeneratorUrl", "https://api.qrserver.com/v1/create-qr-code/?size={0}x{1}&format={2}&data={3}");
+
+	public int SizeInPixels { get; set; } = 150;
+	public string TextToEncode { get; set; } = string.Empty;
+	public bool AutoDetectPageUrl { get; set; } = false;
+	public bool RemoveSkinParam { get; set; } = true;
+	public string ImageFormat { get; set; } = "jpg";
+
+	private void SetTextFromPageUrl()
+	{
+		if (RemoveSkinParam)
+		{
+			try
+			{
+				TextToEncode = FilteredUrl(WebUtils.GetSiteRoot() + Page.Request.RawUrl);
+			}
+			catch (Exception ex)
+			{
+				log.Error("handled error ", ex);
+			}
+		}
+		else
+		{
+			TextToEncode = WebUtils.GetSiteRoot() + Page.Request.RawUrl;
+		}
+	}
+
+
+	private string FilteredUrl(string rawUrl)
+	{
+		if (string.IsNullOrEmpty(rawUrl) || !rawUrl.Contains("?"))
+		{
+			return rawUrl;
+		}
+
+		if (rawUrl.IndexOf("?") == (rawUrl.Length - 1))
+		{
+			return rawUrl.Replace("?", string.Empty);
+		}
+
+		var baseUrl = rawUrl.Substring(0, rawUrl.IndexOf("?"));
+		var queryString = rawUrl.Substring(rawUrl.IndexOf("?"), rawUrl.Length - rawUrl.IndexOf("?"));
+		queryString = WebUtils.RemoveQueryStringParam(queryString, "skin");
+
+		if (queryString.Length > 0)
+		{
+			return $"{baseUrl}?{queryString}";
+		}
+
+		return baseUrl;
+	}
+
+
+	protected override void OnPreRender(EventArgs e)
+	{
+		base.OnPreRender(e);
+
+		if (AutoDetectPageUrl)
+		{
+			SetTextFromPageUrl();
+		}
+
+		if (string.IsNullOrWhiteSpace(TextToEncode))
+		{
+			return;
+		}
+
+		ImageUrl = string.Format(CultureInfo.InvariantCulture, QRCodeGeneratorUrl, SizeInPixels, SizeInPixels, ImageFormat, Page.Server.UrlEncode(TextToEncode));
+		AlternateText = TextToEncode;
+		ToolTip = TextToEncode;
+	}
+
+
+	protected override void Render(HtmlTextWriter writer)
+	{
+		// don't render if the text to encode has not been set
+		if (TextToEncode.Length > 0)
+		{
+			base.Render(writer);
+		}
+	}
+}

Web/mojoPortal.Web.csproj

@@ -1201,7 +1201,7 @@
     <Compile Include="Controls\Google\GoogleTranslatePanel.cs" />
     <Compile Include="Controls\Google\GoogleCustomSearchControl.cs" />
     <Compile Include="Controls\Google\LocationMap.cs" />
-    <Compile Include="Controls\Google\QRCodeImage.cs" />
+    <Compile Include="Controls\QRCodeImage.cs" />
     <Compile Include="Controls\Gravatar\Avatar.cs" />
     <Compile Include="Controls\Panels\jPlayerPanel.cs" />
     <Compile Include="Controls\jQuery\bxSlider.cs" />