WCF / ASMX :: Call Webservice Hosted On IIS From Javascript?
Jan 11, 2011
all My web app is calling webservice which resides in same virtuall directory as web app . In this scenario i have a javascript function like this which works perfectly.
Pinging back to a webservice in ajax from the client keeps the user's session alive, I don't want this to happen. More extensive summary For a website we're developing, we need the client to ping back (in js) to a webservice (ASMX) on the server (IIS7.5). This happens to let the server know that the user is still on the site, and hasn't browsed away to another site. This is as our customer wants to let users lock records, but if they browse away to other sites, then let other people take over those locked records. Perhaps the distinction between the client being on the site but inactive and on another site seems unimportant, but that's kinda irrelevant, I don't get to write the UI spec, I just have to make it work.
My problem is this, the ping stops the user from being timed out on the server through the standard forms authentication timeout mechanism. Not surprising as there is that 30 second ping in the background keeping the session alive. Even though we want to know if the user is still on the site, we want the normal forms authentication timeout mechanism to be honoured. I thought I might be able to fix this by removing the ASP.NET_SessionId and .ASPXAUTH cookies in the XMLHttpRequest that is the server ping, but I can't figure out how to do this. This is how my web service & method are defined:
[WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] [ScriptService] public class PingWS : WebService { [WebMethod] public void SessionActive(string sessionID) { // does stuff here } This is how I'm calling it in js (request is over HTTPS, : $.ajax({ type: "POST", url: "PingWS.asmx/SessionActive", data: 'sessionID=' + aspSessionID + '}', beforeSend: function (xhr) { xhr.setRequestHeader('Cookie', ''); xhr.setRequestHeader('Cookie', 'ASP.NET_SessionId=aaa; .ASPXAUTH=bbb;'); }, dataType: "json" });
I was trying with the setRequestHeader, but that just appends to the header rather than overwrites the header, and IIS is happy to ignore that junk I added. I'm thinking maybe I should be trying to do this at the server end, someone take PingWS.asmx out of the loop so that it doesn't keep the session active, but I'm not sure how to do this. Although the title of the question is focused on clearing the cookie in the header, I'd be super happy if anyone points out that I'm being really stupid and there is actually a much better way of trying to do what I'm doing.
I'm thinking at this stage maybe I need to add something to the webmethod that says how long this particular page has been inactive, and use that knowledge to timeout manually. That actually sounds pretty easy, so I think I'll do that for now. I'm still convinced that there must be an easy way to do what I originally wanted to do though. Update I'm thinking I'm pretty screwed in terms of cookie manipulation here as both the .ASPXAUTH and ASP.NETSessionId cookie are HttpOnly, which means the browser takes them out of your hands, you can't access them via the document.cookies object. So I would say that leaves me with:
Updating my SessionAlive webmethod to track each request so I can tell how long the user has been sitting idle on a page and timeout if needs be Marking the .asmx page somehow on the server end so that it's taken out of the normal authentication/session tracking flow I know how to do 1. so I'll start there but 2. seems much cleaner to me.
I am trying to call a web service which is hosted in .net framework.
Here is my piece of code:
<% function ValidateUser() set objSoapClient = server.CreateObject("MSSOAP.SoapClient30") objSoapClient.ClientProperty("ServerHTTPRequest") = True Call objSoapClient.mssoapinit("http://10.13.222.240:81/megaservice/UserWS.asmx?WSDL","UserWS") ValidateUser=objSoapClient.IsUser(2) End function %>
And i call the function as
<% =CalculateDiscount %>
It is giving error as
Server object error 'ASP 0177 : 800401f3' Server.CreateObject Failed /asp/index.asp, line 12 800401f3
i am working on .net and new on asp.I haven't worked on asp and it was pretty easy to call through visual studio in .net but can't do the same for asp
I have created web service and deployed on server after creating proxy server ..........
when i browse the URL used in proxy server from different computer on same network, it works fine..... but when i browse the same URL on computer on different network, it wont work.....
I have a production web application that uses <authentication mode="Windows"/> I have added an .asmx page with a method in it. I'd like to test making calls to it from a separate client web app. When I do this I get the error: The request failed with HTTP status 401: Access Denied What do I need to do in my client app to access this webservice?
In my ASP.net 3.5 application I'm calling an asmx webservice that is part of the application. Calling the webservice entends the user's session timeout, which is undesirable in this case.How can I call a webservice on my server without extending the session timeout? Is there a way in IIS to designate it as being outside of the session scope? (apologies if I'm using incorrect terminology) Can I designate a directory in the ASP.net web.config file as being outside the session?
i have created a normal web service and i want to host it outside IIS. one idea i got is to use window service as hosting environment. i have created a web service and hosted it window service and its window service is running now.would anybody please let me know that how can i call web service hosted in window service binded over soap.tcp. here is my sample code.
I'm doing a project in asp.net with a web services. My web services and my asp.net project is separate and my asp.net projet have a reference of my web services. i'm using visual studio 2008 framework 3.5 and my service web is in vb.net. i want to call the web methods of my web services in javascript my script manager is declared
service1 is the class of my Webservice and i call the function test with my button <input name="btnRecherche" class="btnRechercher" type="button" value="Rechercher un emplacement" onclick="test()" /> the problem is : JavaScript say Service1 is not defined but why .... What's the problem ? I've checked many forums and videos every body did it sorry for the french variable
I'm calling a webservice using jQuery with .ajaxHere are the data parameters for the call:
var parameters = "{'Titre':'" + Titre + "','Description':'" + Description + "','Contact':'" + Contact + "','VilleId':'" + VilleId + "','QuartierId':'" + QuartierId + "','UserId':'" + UserId + "'}"; It works fine. But when parameters Description or Titre contain the ' character , no call!!!
Does anyone have an idea how can i make it work even with apostrophe character in Titre and/or Description?
My javascript code is calling a asp.net webservice, so i have a call to the webservice something like this:MyWebservice.GetData(param, ResponseReceived, ResponseTimeOut, ResponseError);When the webservice returns data, ResponseReceived method is called.However sometimes the user might navigate to another url before the webservice call actually returns, in such a scenario FireFox throws an Error saying 'An error occured oricessubg the request. The server method GetData failed'So my question is how can i kill the async call when the user navigates to another page or makes another request to the webservice? I know in a normal XMLHttpRequest i could have called Abort method, but not sure how to make it work with the above webservice proxy.
Configuration : Windows Vista,VS 2005,Ajax v1.0.61025 My Html Page
<html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title>Untitled Page</title> <script language="javascript" type="text/javascript"> function fnCall() { try { var ans= Sim.Service.HelloWorld(OnMethodSucceeded, OnMethodFailed); } catch(e) { alert(e.message); } } function OnMethodSucceeded(result) { alert('a'); } function OnMethodFailed(result) { alert('b'); } </script> </head> <body> <form id="form1" runat="server"> <asp:ScriptManager ID="ScriptManager1" runat="server" ><Services> <asp:ServiceReference Path="http://localhost/ajaxtest/service.asmx" /></Services> </asp:ScriptManager> <div><input id="Button1" type="button" value="button" onclick="fnCall();" /></div> </form> </body> </html> Web Service CS. using System; using System.Web; using System.Web.Services; using System.Web.Services.Protocols; using System.Web.Script.Services; namespace Sim { [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] [System.ComponentModel.ToolboxItem(false)] // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. [System.Web.Script.Services.ScriptService] public class Service : System.Web.Services.WebService { public Service() { //Uncomment the following line if using designed components //InitializeComponent(); } [WebMethod,ScriptMethod(UseHttpGet=true)] public string HelloWorld() { return "Hello World"; } } }
But i am getting Sim is not defined. Error. post ur comments. I have reviewed most of the forums. I am not able to clear
I am calling a web service via Javascript. I tried it first in a web page that does not have a Masterpage and it worked perfectly. Then I moved everything over to a web page that does use a Masterpage, and I get a "Microsoft JScript runtime error: Object required" on the javascript statement that calls the web service. My javascript statements look like so:
I have a web user control. That I load dynamicaly inside a modalpopup window using dynamic populate extender. User control has a external javascript file linked to it. Problem: I cannot make call to webservice method from this external javascript file. When I make a call -- servicename.methodname() I get servicename not defined error.
Is there a simple way to turn off form submit behaviour of the page when ENTER is pressed while I am focused to textbox? What I want to achieve is to call a web-service without submiting the page when ENTER is pressed in a specific textbox in my aspx page?
I am trying to debug a webservice that is hosted in IIS. When I open it through Visual Studio as a website, put a breakpoint and run it, it is executing as expected but none of the breakpoints are being hit. When I remove the virtual directory from IIS, I am able to hit the break points. One of the suggested solutions was to attach aspnet_wp process during Debug. But the aspnet_wp is not running on the system (I have checked the options 'Show processes from all users' and 'Show processes from all sessions').
I have datatable consist of 20 records and i want to bulk insert into sqlserver through the asmx webservice. Can anybody guide to me or provide Sample BusinessLogic and webservice code.
I get this error when trying to access a self hosted wcf service...
[Code]....
Can someone explain what I need to do to get this to work, I do not have any cross domain policy file. And don't know how that is supposed to look like.
I need advice on how to secure my WCF web service hosted in IIS. I am new to WCF and would appreciate any sample code, articles to help me restrict access to my WCF service.
I am in the process of testing and deploying a WCF service that will be available on the internet. I need to secure the web service so that only authorized clients can use the service. I need to be able to detect who the client is making the call to the service. The group I am building this service for wants to use Certificate authentication or IP address to Identify the themselves to call my web service. They do not want to use user name and password.
I have found several articles and code snippets for getting the IP address of the client and Certificate authentication. The problem I found using trying to get the IP address of the client is that since my web service his hosted behind a F5 or some type of reverse proxy I cannot get the true IP of the client. The IP that the web services get is the IP of the F5 or the reverse proxy.
For Certificate Authentication I followed the directions from the 9 simple steps to enable X.509 certificates on WCF located here
http://www.codeproject.com/KB/WCF/9StepsWCF.aspx?msg=3181718. I had a few problems using this setup for my web service. 1) To me it seemed like as long as the user presented a valid Certificate they would be able to call my web service.
2) Does Certificate Authentication work when the security mode is set to Transport? In my production environment only HTTPS traffic is allowed through. I setup a Certificate authention on my service following the steps outlined in the article. I used the SSL certificate assigned to my server for the web services. For the client outside the network the service is hosted on, I used one of the certificates I generated when i tested the code locally. I changed the authentication mode of the certificate to chain trust for both the client and the server. I was able to call the service and recieve a message. I thought that since my certificate was self generated using the makecert command that the web services would not authenticate the client for the service.
how I can secure my services to only allow a few approved clients to call call the service.