ASP.NET Photo Handler

NEW POST: Setup Question

markshiffer — Thu, 29 May 2008 12:08:42 GMT

Nevermind. I had to throw in a bunch of debug code that led me all the way back around to figuring out that the mode was set to cache to disk and for some reason Go Daddy is not allowing that. I have the folder setup as read/write but for some reason File I/O permission still fails. I switched to memory cache and it works. Unfortunately, I have so many pictures that this probably is not going to help me without some mechanism for paging. I guess I'll have to roll up my sleeves and write that into it. Thanks for giving me a start though.

NEW POST: Setup Question

markshiffer — Wed, 28 May 2008 12:59:51 GMT

I'm sure that I am just missing a setting, but I cannot seem to get the gallery to work on my site. It displays a long list with what appear to be invalid image links for both folders and files. Since the handler is dynamically passing back the images I have been unable to find what I have setup wrong. Opening and image will display the image information correctly, but does not display the photo. The photo will display when I click on 'full resolution', but that is just a link to the actual file.

Any thoughts on what I might be doing wrong? Thanks for any help. Below is the url if that helps. Thanks.

http://www.shiffer.biz/shiffer-content/pictures/album.ashx?albummode=Folder&albumpath=%2fshiffer-content%2fpictures

NEW POST: Captions for photos

xavier33 — Fri, 16 May 2008 18:40:35 GMT

Congruatulations!! you've done a great job !!! I'll use it to show some family photos. Very nice!

I would like to know how could I change the color of the arrow that returns to the main page. Sometimes it is difficult to see and I would like to paint it red o green or I don't know....

Again, congratulations and thank you.

Xavier

NEW POST: Strange Erros with Visual Studio 2005 Latest update.

xavier33 — Wed, 14 May 2008 13:04:32 GMT

Hi !

I have exactly the same problem. Could you solve it?

Thank you,

Xavier.

NEW POST: Strange Erros with Visual Studio 2005 Latest update.

meetrams — Sat, 05 Apr 2008 14:20:09 GMT

I created a project as per the information posted here.

http://www.codeplex.com/PhotoHandler/Thread/View.aspx?ThreadId=14220&ANCHOR#Post84409

I encountered strange errors as per the attached image.

http://i26.tinypic.com/8zi2xz.jpg

Any suggestion?

NEW POST: Change Source

BertrandLeRoy — Wed, 02 Apr 2008 23:40:39 GMT

No. At least, not easily.

NEW POST: Converting Handler to a Control

BertrandLeRoy — Wed, 02 Apr 2008 23:38:49 GMT

The ashx file already has the ability to act as a handler and as a user control. If you look at the defualt.aspx page, that's exactly what it's doing. One common mistake people do is not put the whole thing at the root of an IIS web application. You can also try to tweak Path and HandlerUrl on the control.

CLOSED ISSUE: Support for UNC based virtual directories

BertrandLeRoy — Wed, 02 Apr 2008 23:34:37 GMT

My scenario is this:

My images reside on a network share (NAS device, actually). I have read only access to this share via a UNC path.

I have the network share setup as a virtual directory in IIS. PhotoHandler is also setup. The structure looks like this:

<root>\PhotoHandler {this is setup as a .NET 2.0 web app}
<root>\PhotoHandler\album.ashx
<root>\PhotoHandler\default.aspx
<root>\PhotoHandler\images (this is the virtual directory that connects to the network share)

Problem is that the handler doesn't see the images directory. If I create a physical folder there is works fine.
Comments: The handler relies on the physical exploration of the folders from the place where the handler is. I have no plans to probe for virtual directories, which would be a lot more expensive (and would potentially require higher trust). You should be able to make that work by putting the handler in the virtual directory with the files, provided you give the user under which ASP.NET runs access rights.

COMMENTED ISSUE: error in event viewer

BertrandLeRoy — Wed, 02 Apr 2008 23:30:44 GMT

Hi,

I get a lot of warnings in my event viewer like this one. Does anyone know what this means ?
Event Type: Warning
Event Source: ASP.NET 2.0.50727.0
Event Category: Web Event
Event ID: 1309
Date: 6/01/2008
Time: 12:08:38
User: N/A
Computer: WS03-Machien
Description:
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 6/01/2008 12:08:38
Event time (UTC): 6/01/2008 11:08:38
Event ID: d07d486d34ff439fbd29356e0b8504b1
Event sequence: 108070
Event occurrence: 47
Event detail code: 0

Application information:
Application domain: /LM/W3SVC/47963295/Root-1-128440209114218750
Trust level: Full
Application Virtual Path: /
Application Path: path\www\mysite.be\
Machine name: WS03-Machine

Process information:
Process ID: 2340
Process name: w3wp.exe
Account name: theuser

Exception information:
Exception type: TargetInvocationException
Exception message: Property accessor 'SubFolders' on object 'Bleroy.Photo.Album' threw the following exception:'Could not find a part of the path path\www\mysite.be\(x(1)a(ogqavewgyaekaaaandlmyzdmnzctmzc2my00nzriltkzm2itndvhnte5y2yznwy53zbdffpombyc1v7rsd7po_tzj-s1)s(zozrlzai0mfhytrc4ug55uek))\gallery'.'

Request information:
Request URL: http://www.mysite.be/Gallery/Default.aspx?AspxAutoDetectCookieSupport=1
Request path: /Gallery/Default.aspx
User host address: IP.IP.IP.IP
User:
Is authenticated: False
Authentication Type:
Thread account name: NT AUTHORITY\NETWORK SERVICE

Thread information:
Thread ID: 6
Thread account name: theuser
Is impersonating: False
Stack trace: at System.ComponentModel.ReflectPropertyDescriptor.GetValue(Object component)
at System.Web.UI.DataBinder.GetPropertyValue(Object container, String propName)
at System.Web.UI.DataBinder.Eval(Object container, String[] expressionParts)
at System.Web.UI.DataBinder.Eval(Object container, String expression)
at System.Web.UI.TemplateControl.Eval(String expression)
at ASP.gallery_default_aspx.__DataBinding__control7(Object sender, EventArgs e) in path\www\mysite.be\Gallery\Default.aspx:line 32
at System.Web.UI.Control.OnDataBinding(EventArgs e)
at System.Web.UI.WebControls.Repeater.OnDataBinding(EventArgs e)
at System.Web.UI.WebControls.Repeater.DataBind()
at System.Web.UI.Control.DataBindChildren()
at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)
at System.Web.UI.Control.DataBind()
at Bleroy.Photo.Album.RenderControl(HtmlTextWriter writer) in i:\www\mysite.be\Gallery\album.ashx:line 1822
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.Control.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.Control.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.Page.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Custom event details:

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Comments: ** Comment from web user: BertrandLeRoy **

At what trust level are you running the app?

COMMENTED ISSUE: Bug in Control

BertrandLeRoy — Wed, 02 Apr 2008 23:27:53 GMT

Awesome App Bertrand! I love how easy it is to use just the .ashx page! Now of course I have a question...

My file structure is such:

<Root>/Family/Photos/album.ashx

<Root>/Family/Photos/default.aspx

<Root>/Family/Photos/2007/<photos>

I had to change the CacheLocation to CacheLocation.Memory because of my host.

When I run just the album.ashx it works perfectly, all the images display, only the 2007 and sub-directories show and navigation works fine.

When I try and run the default.aspx (which I modified the original to have the src="album.ashx" instead of src="~/album.ashx") I see all directories from the root (minus hidden/protected ones) and only the red X image, no images anywhere, even in the 2007 and subs, but if I click "Details" it does show the EXIF details of the photo. The navigation still works fine, and when I get to the point where the tool tip would normally read "Click to view picture at full resolution", if I click that it opens a new browser and shows the photo as expected.

Two Questions:

1. Any idea why it doesn't show any of the photos when being called from the Default.aspx but works fine in the album.ashx?

2. How do I make it so it only scans sub-directories from it's location when being called from the default.aspx file?

Thanks for the awesome utility!
Comments: ** Comment from web user: BertrandLeRoy **

Does it work if you set the handler path property on the control? For your second question, did you try setting the Path property?

NEW POST: Getting Source Code

meetrams — Wed, 02 Apr 2008 06:56:48 GMT

Sorry guys please ignore my request. There are no other files. I thought there will be Project files, and .CS files.

NEW POST: Getting Started for a Newbie

meetrams — Wed, 02 Apr 2008 06:55:10 GMT

If you are new to ASP.NET the links on the homepage may not help you much. So here is a simple steps you need to follow. I hope this helps.

Create a Project in Visual Studio 2005
By Default Default.aspx will be created.
Open the original default.aspx from samples directory in a Text editor.
Copy the contents of Default.aspx from Samples directory in clipboard
Paste the contents in VS 2005 Default.aspx file. (This will replace the original code created by VS 2005)

Download the MetaDataExtractor. Remember to download older version. 2.2.2d
http://renaud91.free.fr/MetaDataExtractor/

Follow the below link for details why you should use version 2.2.2d
http://neilkilbride.blogspot.com/2007/07/net-photo-gallery-control-photohandler.html?showComment=1195538700000#c578268358917251999

Unzip the assembly file
In visual Studio 2005 add reference. Browse and select the MetaDataExtractor assembly.

Select Add file in Visual Studio 2005
Add all the files templated.aspx. album.ashx and album.css
in VS 2005 Select Default.aspx tab in code window.
Switch the Tab in project window to Design view
Drag and drop album.ashx from solution explorer in Design view.

Buid and run

VS 2005 will open your browser and it will be blank (Black)
Now copy any of you image folder to your Project Binary directory and run again

You will be able to see Photo handler functionality

Good luck.

Note: I am new. My approach may not be best. Please share your thoughts.

NEW POST: Getting Source Code

meetrams — Tue, 01 Apr 2008 07:51:02 GMT

When I tried to get the sourcecode using Codeplex command line utility, I have error.

C:>cpc checkout PhotoHandler C:\MyDir

Above command gets the following files
album.ashx
Samples Directory
Album.css
Default.aspx
Templated.aspx

Above files are binary files. I need Source.
How do I get all the source files?

Is their any specific pah I need to specify exclusively?
When I invoke the fllowing command I get an error.

C:\Develop\Codeplex\PhotoHandler>cpc checkout PhotoHandler:https://tfs03.codepl
ex.com C:\Develop\CodePlex
error: TF10123: The path '$/PhotoHandler/https:/tfs03.codeplex.com/' contains th
e character ':'. Remove the ':' and try again.

How do I resolve it?

Thanks

NEW POST: Converting Handler to a Control

Forest — Mon, 04 Feb 2008 21:45:52 GMT

ASP.NET is new to me and I have not found anything on building or using Handlers or Templated ASPX pages.

The Photohander works great as a stand alone web application but I have not been able to integrate it into an existing web site and load the album.aspx page with images - only the placeholders. I have been able to load the handler but I do not understand how I can modify it to link back to original web site structure with web site links. I have made changes to the directory locations for the CSS links and the Handler files - I am obviously missing something that is probably very fundamental.

One thought is to make the handler a control then use it in a new form on the existing web site - I assume that I would still load the metadata extractor in the Bin file and the converted handler in the image file that I want to display. But how do I convert the handler to a control file? Specific advice would be greatly appreciated - or point me to a good reference book that I can study.

I have studied both of Jim Chesire's books on Expression Web and the Expression Web Developers Guide to ASP.NET 3.5 but there is nothing specific about merging two web sites, handlers or templated pages. And I have not been able to find useful information on the web either - Thanks, Forest Majors

Patch Uploaded

pmanuel — Thu, 10 Jan 2008 13:10:53 GMT

pmanuel has uploaded a patch.

Description:
Add the photo caption capabilitty

NEW POST: GoDaddy

Questnfool — Thu, 10 Jan 2008 08:05:33 GMT

I saw this and thought, "my life just got so easy." But under Firefox it just came up in one long colum and no background color. After a few tweaks it works GREAT! For any other GoDaddy users out there who want to use and have FF support...

1. Under your top level root folder on your site ensure you have a "bin" folder and drop the MetaDataExtractor.dll file in it.
2. Open the album.ashx file in Notepad or similar word processor.
3. Goto line 1927 (Ctrl-G in Notepad.)
4. Change:
writer.AddAttribute(HtmlTextWriterAttribute.Href, "?albummode=css");
<to>
writer.AddAttribute(HtmlTextWriterAttribute.Href, "album.css");
5. Goto line 2102; make the same change.
6. Where you want the album script to start working from, upload the album.ashx and album.css file.
7. Open up the album.ashx file on your website.
8. Enjoy!

Again, the above change is to correct for a glitch that prevented V2.1 from working right for me in Firefox. Worked great in IE7, just not FF. Also note that this change will force the use of the CSS formatting from the additional album.css file, not from the variable in the ashx file.

This only works on the GoDaddy Windows server site with Active Server Pages (ASP) V2.0 loaded.

As with all things code, I'm positive that there are fixes to the above and a myriad of suggestions and ideas.

MUCH thanks to all who coded this sweet little piece of digital freedom.

~Questnfool

NEW POST: Change Source

mparter — Tue, 08 Jan 2008 15:51:44 GMT

I have a couple of questions regarding this;

1. Would it be possible for me to modify the code so that it retrieves the images from Live Photos (LiveNet) rather than from a file system?

2. Would you be able to give me some pointers as to what requires to be modified?

Thanks. I will of course make the modified code available.

CREATED ISSUE: error in event viewer

vantoko — Sun, 06 Jan 2008 18:13:25 GMT

COMMENTED ISSUE: Support for UNC based virtual directories

gbordier — Mon, 31 Dec 2007 11:49:25 GMT

Same scenario, but I placed the handler on the vdir mapped to the UNC share and got a security exception that may be related to MetaDataExtractor.dll rather than the handler itself ...

Line 1087: if (cached == null) {
Line 1088: Metadata data = new Metadata();
Line 1089: ExifReader exif = new ExifReader(pictureFileInfo);
Line 1090: exif.Extract(data);
Line 1091: IptcReader iptc = new IptcReader(pictureFileInfo);

Source File: \\gbordiers05\photos\all\83-251207\album.ashx Line: 1089

Stack Trace:

[SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]
System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) +0
System.Security.CodeAccessPermission.Demand() +59
System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy) +684
System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share) +114
System.IO.FileInfo.Open(FileMode mode, FileAccess access) +37
com.drew.imaging.jpg.JpegSegmentReader.GetJpegInputStream() +243
com.drew.imaging.jpg.JpegSegmentReader.ReadSegments() +147
com.drew.imaging.jpg.JpegSegmentReader..ctor(FileInfo aFile) +54
com.drew.metadata.exif.ExifReader..ctor(FileInfo file) +43
Bleroy.Photo.ImageInfo.GetImageData(FileInfo pictureFileInfo) in \\gbordiers05\photos\all\83-251207\album.ashx:1089
Bleroy.Photo.ImageInfo.GetImageDate(FileInfo pictureFileInfo) in \\gbordiers05\photos\all\83-251207\album.ashx:1114
Bleroy.Photo.Album.<GetImages>b__0(FileInfo x, FileInfo y) in \\gbordiers05\photos\all\83-251207\album.ashx:2038
System.FunctorComparer`1.Compare(T x, T y) +19
System.Collections.Generic.ArraySortHelper`1.SwapIfGreaterWithItems(T[] keys, TValue[] values, IComparer`1 comparer, Int32 a, Int32 b) +125

COMMENTED ISSUE: Sorting Photos by EXIF TAG

gbordier — Mon, 31 Dec 2007 11:45:36 GMT

Hi, first off let me say that this is an AWESOME plugin that you have created. I'm using it through Windows Home Server and I love it.

One suggestion, though. It appears as though you are using the EXIF_DATETIME tag to sort the photos. It has been my experience that this doesn't always work. Photo editing software sometimes modifies this tag when you save an image after editing. I would suggest using the EXIF_DATETIME_DIGITIZED tag instead.

I've been having some trouble getting the photos to display in the correct order and I'm going to give this a try when I get home. Thanks...
Comments: ** Comment from web user: gbordier **

Same here.

What I did is change the Sort method to sort using digitized time (you'll have to iisreset I guess) :

internal static DateTime GetImageDate(FileInfo pictureFileInfo) {
string cacheKey = "date(" + pictureFileInfo.FullName + ")";
Cache cache = HttpContext.Current.Cache;
DateTime result = DateTime.MinValue;
object cached = cache[cacheKey];
if (cached == null) {
Metadata data = GetImageData(pictureFileInfo);
ExifDirectory directory = (ExifDirectory)data.GetDirectory(typeof(ExifDirectory));
if (directory.ContainsTag(ExifDirectory.TAG_DATETIME_DIGITIZED)) {
try {
result = directory.GetDate(ExifDirectory.TAG_DATETIME_DIGITIZED);
}
catch { }
}
else {
IptcDirectory iptcDir = (IptcDirectory)data.GetDirectory(typeof(IptcDirectory));
if (iptcDir.ContainsTag(IptcDirectory.TAG_DATE_CREATED)) {
try {
result = iptcDir.GetDate(IptcDirectory.TAG_DATE_CREATED);
}
catch { }
}
else {
result = pictureFileInfo.CreationTime;
}
}
cache.Insert(cacheKey, result, new CacheDependency(pictureFileInfo.FullName));
}
else {
result = (DateTime)cached;
}
return result;
}
}