Question

我正在维护一个Umbraco网站，该网站包含在Image Processor中实现的简单水印功能。这在Umbraco 7.4.2中通过未提供源代码的编译库工作。将Umbraco更新到7.12.3后，它将不再起作用。我正在寻找简单的解释或提示原因所在。

ImageProcessor和ImageProcessor.Web的版本保持不变（2.6.2.25和4.9.3.25），ImageProcessor.Web.Config（2.4.1.19）保持不变。

它似乎是在 \ config \ ImageProcessor \ processing.config文件如下：

<processing preserveExifMetaData="false" fixGamma="false" interceptAllRequests="true">
<presets>
</presets>
<plugins>
<plugin name="SecurityWatermark" type="MMUmbracoLibrary.Imaging.Web.Processors.SecurityWatermark, MMUmbracoLibrary">
  <settings>
    <setting key="WatermarkVirtualPath" value="~/app_data/watermark.png" />
    </settings>

使用DotPeek查看库，我看到该方法的来源如下：

    using ImageProcessor.Processors;
    using ImageProcessor.Web.Processors;
    using System.Text.RegularExpressions;

    namespace MMUmbracoLibrary.Imaging.Web.Processors
    {
      public class SecurityWatermark : IWebGraphicsProcessor
      {
        private static readonly Regex QueryRegex = new Regex(".+", RegexOptions.Compiled);

        public SecurityWatermark()
        {
          this.Processor = (IGraphicsProcessor) new MMUmbracoLibrary.Imaging.Processors.SecurityWatermark();
        }

        public Regex RegexPattern
        {
          get
          {
            return SecurityWatermark.QueryRegex;
          }
        }

        public int SortOrder
        {
          get
          {
            return 0;
          }
          private set
          {
          }
        }

        public IGraphicsProcessor Processor { get; private set; }

        public int MatchRegexIndex(string queryString)
        {
          return this.SortOrder;
        }
      }
    }

另外，DotPeek的这段代码可能是最重要的部分：

namespace MMUmbracoLibrary.Imaging.Processors
{
  public class SecurityWatermark : IGraphicsProcessor
  {
    public object DynamicParameter { get; set; }

    public Dictionary<string, string> Settings { get; set; }

    public Image ProcessImage(ImageFactory factory)
    {
      IMedia mediaByPath = ApplicationContext.Current.Services.MediaService.GetMediaByPath(HttpContext.Current.Request.Path);
      if (mediaByPath == null)
        throw new HttpException(404, "No image found");
      if ((int) mediaByPath.Properties["disableWatermark"].Value != 0)
        return factory.Image;
      string filename = HttpContext.Current.Server.MapPath(this.Settings["WatermarkVirtualPath"]);
      ImageLayer imageLayer = new ImageLayer()
      {
        Image = (Image) new Bitmap(filename),
        Opacity = 100,
        Size = factory.Image.Size
      };
      return factory.Overlay(imageLayer).Image;
    }
  }
}

说实话，这段代码对我来说没有多大意义，但它似乎可以工作。谁能建议Umbraco升级如何导致它停止工作？

升级后，带有Umbraco和图像处理器的简单功能已停止

0 个答案: