Tony Hilliard
skipping stones Posts:9
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05-06-2008 05:19 AM |
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We are having a lot of difficulty trying to use the HTTP Post completion event. After a few days of troubleshooting it looks like we are not able to use a URL that is on the same webserver as our DNN site. We have tried just making a simple one question form, if the Post URL is say http://www.google.com it goes without a problem, if we change it say to the root of our site, http://www.allsup.com, for example we get a Page Load Exception error (see below for excerpt from the Event Viewer). We have tried several different URLs, both inside and outside of our DNN site, and it appears that if the URL is on the same webserver, it fails. We tried a similar setup on the betasprings site, created a one form field with a HTTP Post completion event, using betasprings for the HTTP Post URL and it worked fine there. We are stuck on what to do from here. We were hoping to use the HTTP Post event to post the form to another page we already had created to handle our form processing that was created pre-DNN that uses a different datasource than the DNN install is using.
DF Version: 02.60.30, DNN Version: 04.08.02
Info from Event Viewer:
AssemblyVersion: 04.08.02
PortalID: 4
PortalName: Allsup Consumer Site
UserID: 17
UserName: twhilliard
ActiveTabID: 453
ActiveTabName: Test
RawURL: /AboutSSDI/Test/tabid/453/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://www.allsup.com/AboutSSDI/Tes...fault.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Flypaper; .NET CLR 1.0.3705; .NET CLR 2.0.50727)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 057169c3-cf31-430c-92fa-de8008b89843
InnerException: Object reference not set to an instance of an object.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: DataSprings.Modules.DynamicForms.DynamicForms.ProcessEvents
StackTrace:
Message: DotNetNuke.Services.Exceptions.PageLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DataSprings.Modules.DynamicForms.DynamicForms.ProcessEvents(Boolean blnRedirectOnly, Boolean blnPaymentGateway, String strPaymentStatus, String strResponseID, Int32 intPaymentUserID) at DataSprings.Modules.DynamicForms.DynamicForms.SubmitForm(Boolean ProcessPaymentNotification, String strResponseID) at DataSprings.Modules.DynamicForms.DynamicForms.lnkSave_Click(Object sender, EventArgs e) at System.Web.UI.WebControls.LinkButton.OnClick(EventArgs e) at System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) at System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---
Source:
Server Name: WEB01 |
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Chad Nash Posts:5260
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05-06-2008 07:38 AM |
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Hmmm... This is a very weird error. Does it save the URL correctly when you add/update the event? Also what version of Dynamic Forms are you running on? Is this event set to run based on 'any response'? Is there anything else that would cause your web server to not allow posts from anywhere? For example, if you setup a form post on www.betasprings.com to post to your server does it also return the error there? Maybe its posting to that page/server and not necessarily posting on the same domain? -Chad |
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Tony Hilliard
skipping stones Posts:9
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05-06-2008 07:52 AM |
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We are using Dynamic Forms version 02.60.30 according to the module definitions section. Yes, it is set on Any Field Response, I left that portion as the default and only modified the Post URL and Post fields. I just tried on betasprings.com having the one field form point to our site and it went through ok. Also, we had the forms initially on the DNN site using iframes, but that was causing some issues with our site tracking which is why we wanted to get them out of the iframe, however those iframes were submitting forms without an error, so it would seem that the web server is able to allow posts. |
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Tony Hilliard
skipping stones Posts:9
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05-06-2008 07:54 AM |
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Sorry, just realized I didn't answer one of your questions. Yes it does appear to be saving the URL and post information, in that when we go back into the settings they are there. |
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Chad Nash Posts:5260
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05-06-2008 10:50 AM |
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Well I am not really sure what would cause this... when I look in this area, changing the URL to another URL is really only a few lines of code etc... Did you choose to email the results to the portal admin in the event? |
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Tony Hilliard
skipping stones Posts:9
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05-06-2008 12:43 PM |
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No we haven't checked that option as of yet. |
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Tony Hilliard
skipping stones Posts:9
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05-07-2008 06:52 AM |
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We tried checking the email admin option, it appears we only get emails sent to us when it works. We aren't getting any email when this Object Reference error occurs. The error seems to be referencing a function that deals with the payment options, but we don't have any of that turned on, is there possibly something that is trying to be checked that our server is not returning or configured to return? |
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Chad Nash Posts:5260
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05-07-2008 07:49 AM |
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Well that function call just includes a lot of optional parameters passed into it (in case this was returning from PayPal it has to pass that token into the function), your specific issue though isn't related to any of that though. The difference in changing the URL and it working VS changing it and it not is really limited (and this is the first instance its been reported at least). I can post the basic code here if you think that will help, and I can also try and add some additional error handling to maybe capture the specific error, but besides that I am not really sure the best scenario from here. I checked and the email to the admin is supposed to go out only after it was successfully so if its throwing an error your right you wouldn't get it. For the next patch or update I will add some additional error handling to throw back a more detailed message... I tried googling 'http post request can't post from and to same domain' but got back only limited results. Is this particular host using a Firewall? Is this a dedicated server or hosted somewhere and what is the trust set at on the site? -Chad |
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Tony Hilliard
skipping stones Posts:9
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05-07-2008 09:58 AM |
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We are self-hosting using a dedicated server that is behind a firewall. The trust level is at medium, we tried temporarily changing it to Full Trust, but we still got the same error. I am not sure if looking at the basic code would help, I was just trying to think of what would result in a null reference. |
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Tony Hilliard
skipping stones Posts:9
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05-16-2008 02:55 AM |
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We finally solved this issue. Turns out it was a DNS routing issue with our webserver. |
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Chad Nash Posts:5260
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05-19-2008 02:04 PM |
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Tony... Thanks for the follow up on this, hopefully if other users run into similar issues your post is much appreciated as those types of issues can be a real headache! -Chad |
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rakesh maharaj
new to the springs Posts:2
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07-17-2008 02:39 AM |
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I am not able to get http post control values
Please give example |
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Chad Nash Posts:5260
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SK
going with the flow Posts:61
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04-26-2009 06:03 AM |
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I appear to have the same problem as Tony. He said it was a DNS routing issue. What did he do that solved the problem? Thanks |
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Nathan Byrer
going with the flow Posts:33
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David To
river guide Posts:2719
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04-08-2010 08:37 AM |
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HI, based on your HTTP post, that doesn't seem correct. You have the following: &abfields_mappings=username=>Username | firstname=>First Name | lastname=>Last Name | emailaddress=>Email Address I don't know if this is a valid URL because even in an HTTP post, it's actually passing along querystring variables and you can't have a field mapping =username=>Username | firstname | etc. Can you try taking this off and see if it will work? -- David |
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Nathan Byrer
going with the flow Posts:33
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04-15-2010 05:48 PM |
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I changed it to:
projectID=79&status=Open&priorityNumber=1&delimiter=|&action=create_issue&title=$(title)&description=$(desc)&supporttype=$(support)&username=$(username)&firstname=$(FN)&lastname=$(LN)&emailaddress=$(email)
I'm getting the same error. |
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David To
river guide Posts:2719
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04-16-2010 06:27 AM |
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HI, you have "&delimiter=|" which is not correct as well. Can you try removing some fields to see which ones are erroring out. Thanks. -- David |
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Nathan Byrer
going with the flow Posts:33
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04-16-2010 08:00 AM |
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First of all, thanks for the help. I appreciate it.
I've cut the HTTP Post down to:
projectID=79&status=Open&priorityNumber=1&action=create_issue
I've even tried removing it all together.
Whatever I try, I get the same error message.
Nathan |
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Nathan Byrer
going with the flow Posts:33
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04-17-2010 12:36 PM |
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I went back to my working HTML form and posted the form while watching the session with an HTTP debugging proxy. I verified that my original HTTP Post settings were correct. I went back and took out all of the short field names and replaced them with hard coded values that matched my successful submission with my HTML form.
title=Test&description=&Test&supporttype=Equipment Request&username=nsbyrer&firstname=Nathan&lastname=Byrer&emailaddress=nsbyrer@iupui.edu&abfields_mappings=username=>Username | firstname=>First Name | lastname=>Last Name | emailaddress=>Email Address&projectID=79&status=Open&priorityNumber=1&delimiter=|&projfields_mappings=supporttype=>Support Type&abfields_mappings=username=>Username | firstname=>First Name | lastname=>Last Name | emailaddress=>Email Address&action=create_issue
I still get the same error message. If l leave the HTTP Post blank, I get the same error message. If I put in just the required values, I get the same error message.
I have also tried deleting the event and recreating it. |
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David To
river guide Posts:2719
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04-18-2010 05:38 PM |
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HI Nathan, can you check your Snowcovered account and download the latest version of Dynamic Forms to see if it will resolve the HTTP post issue? Thanks. -- David |
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David To
river guide Posts:2719
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04-18-2010 05:38 PM |
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HI Nathan, can you check your Snowcovered account and download the latest version of Dynamic Forms to see if it will resolve the HTTP post issue? Thanks. -- David |
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Nathan Byrer
going with the flow Posts:33
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04-19-2010 05:04 AM |
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I downloaded the most recent update. That didn't help either. |
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David To
river guide Posts:2719
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04-19-2010 06:13 AM |
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Okay, is there a way for you to export your form to www.betasprings.com(username: host, password: dnnhost) and see if you can duplicate the same problem on betasprings? Thanks. -- David |
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Nathan Byrer
going with the flow Posts:33
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04-19-2010 08:22 AM |
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I get the error there too. |
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David To
river guide Posts:2719
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04-19-2010 08:37 AM |
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HI Nathan, I'm running out of ideas. Is there any site you can post to (with some simple values) to verify that HTTP post works and that maybe it's this site that may be having issues and not the HTTP posting itself? -- David |
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Nathan Byrer
going with the flow Posts:33
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04-19-2010 10:08 AM |
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I don't know of any that I can try. If you have a suggestion of one, I'd like to try it.
I am successfully posting to this site using an HTML form.
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Nathan Byrer
going with the flow Posts:33
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04-19-2010 10:51 AM |
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Okay, I found a simple one to try. I was able to make it work. I was even able to watch what the page is responding using debug mode. I then tried taking my HTTP Post and used it with the URL that I was successful with and didn't get an error. As soon as I use the page I am trying to post to, I get the error. I can't troubleshoot it further though. When I put it in debug mode, I get the error before anything else on the page loads, so I can't see any of the debug results and the error message in the Event Viewer isn't any help.
Can you think of a way that I can see the debug information when this error presents itself? |
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David To
river guide Posts:2719
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04-20-2010 06:34 AM |
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HI, well this means that something is wrong with the receiving end because the HTTP post works on several websites but not the one you are trying to get to. Perhaps contact them and see what is the problem. -- David |
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Nathan Byrer
going with the flow Posts:33
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04-20-2010 07:08 AM |
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I'm afraid that is going to end up being a dead end as I can't produce any reports as to what is going wrong. Is there a way to find out what is happening to cause the error? As I said before, the error is very nondiscript. I can go to the people with the website, but I expect that they are going to say that their form works with other servers and forms and it must be an issue with my form tool. I really need some data to backup my claims. |
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