[Mono-bugs] [Bug 58758][Wis] New - ashx without codebehind cannot find dlls in bin/

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Changed by chris@turchin.net.

http://bugzilla.ximian.com/show_bug.cgi?id=58758

--- shadow/58758	2004-05-20 10:44:59.000000000 -0400
+++ shadow/58758.tmp.19634	2004-05-20 10:44:59.000000000 -0400
@@ -0,0 +1,142 @@
+Bug#: 58758
+Product: Mono: Class Libraries
+Version: unspecified
+OS: 
+OS Details: mdk 9.1
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Wishlist
+Component: Sys.Web
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: chris@turchin.net               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: ashx without codebehind cannot find dlls in bin/
+
+a web handler implemented without codebehind yields the following  browser
+message (also wrong):
+
+Server error in '/gd-gallery' application
+Cannot find '/gd-gallery/thumbnail.ashx'.
+Description: Error processing request.
+
+Error Message: HTTP 404. Cannot find '/gd-gallery/thumbnail.ashx'. 
+
+and this message (apche loglevel debug) appears in err_log:
+
+ 
+** (/usr/lib/mono/1.0/mcs.exe:19599): WARNING **: Could not find assembly
+GDGallery, references from /tmp/46463.dll (assemblyref_index=0)
+     Major/Minor: 1,0
+     Build:       1601,28900
+     Token:       (null)
+ 
+ 
+Unhandled Exception: System.NullReferenceException: A null value was found
+where an object instance was required.
+in (unmanaged) /usr/lib/libmono.so.0(mono_assembly_open+0xde) [0x400def2e]
+in (unmanaged) /usr/lib/libmono.so.0 [0x400d0c89]
+in <0x000d1> Mono.CSharp.Driver:LoadAssembly (string,bool)
+in <0x0009f> Mono.CSharp.Driver:LoadReferences ()
+in <0x006ac> Mono.CSharp.Driver:MainDriver (string[])
+in <0x00012> Mono.CSharp.Driver:Main (string[])
+ 
+the same code when compiled as a codebehind in a dll works fine. here is
+the code below, interestingly, it is not the Ntx.GD  reference but rather
+its own namespace GDGallery that is causing the problem...  and,  yes, the
+assembly is there and other pages are working fine...
+
+mono  from  cvs two days ago. xsp  from cvs and mod_mono  from cvs before 
+the virtual  hosts patch...
+
+code:
+
+<%@ WebHandler Language="c#" Class="GDGallery.GDResizer" %>
+using System;
+using System.IO;
+using System.Web;
+using System.Web.SessionState;
+using Ntx.GD;
+
+namespace GDGallery
+{
+	public class GDResizer : IHttpHandler, IRequiresSessionState
+	{		
+		
+		public void ProcessRequest (HttpContext c)
+		{	
+		
+			string cacheDir = "/data/web/gd-gallery/cache/";
+			string fn = "";
+			string cacheFile = "";
+			string fmt = "";
+			GDObjectType otype = GDObjectType.Thumbnail;
+			FileInfo file = null;
+			
+			if (c.Request["fn"] == null)
+				throw new ApplicationException("Pass the right parameters!");
+			
+			fn = Convert.ToString(c.Session["CurrentDir"]) +
+Path.DirectorySeparatorChar + c.Request["fn"];
+			file = new FileInfo(fn);
+		
+			if (file==null)
+				throw new Exception(fn);
+			
+			if (c.Request["fmt"] != null)
+			{
+				fmt = c.Request["fmt"] ;
+				if (Enum.IsDefined(typeof(GDObjectType), fmt))
+					otype = (GDObjectType)Enum.Parse(typeof(GDObjectType),fmt);
+			}
+			
+			cacheFile = otype.ToString() + "_" + file.FullName.Replace("/","_");
+			
+			if (File.Exists(cacheDir + cacheFile))
+			{
+				c.Response.ContentType = "image/jpeg";
+				c.Response.Redirect("cache/" + cacheFile);
+			}
+			else 
+			{
+				if (!(file.Extension.ToLower() == ".jpg"))
+					throw new ApplicationException("Wrong File Type Exception");
+		
+				GD image = new GD( GD.FileType.Jpeg, file.FullName );
+				
+				double ratio = 1.0;
+				double  h = image.Height;
+				double  w = image.Width;
+				double max = Convert.ToDouble(otype);
+				
+				if (w<=max&&h<=max)
+					ratio = 1.0;
+				else if (h>=w)
+					ratio = ((int)otype)/h;
+				else
+					ratio = ((int)otype)/w;
+				
+				h = h * ratio;
+				w = w * ratio;
+				
+				image.Resize((int)w,(int)h);
+				
+				c.Response.ContentType = "image/jpeg";
+				image.Save(GD.FileType.Jpeg,c.Response.OutputStream,50);
+				image.Save(GD.FileType.Jpeg,cacheDir + cacheFile,50);
+				
+				image.Dispose();
+				image = null;
+				GC.Collect();
+			}
+		}
+	
+		public bool IsReusable
+		{
+		   get { return true; }
+		}
+	}
+}