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• Why "Content-Length: 0" in POST requests?

  - by stesch

  A customer sometimes sends POST requests with Content-Length: 0 when submitting a form (10 to over 40 fields). We tested it with different browsers and from different locations but couldn't reproduce the error. The customer is using Internet Explorer 7 and a proxy. We asked them to let their system administrator see into the problem from their side. Running some tests without the proxy, etc.. In the meantime (half a year later and still no answer) I'm curious if somebody else knows of similar problems with a Content-Length: 0 request. Maybe from inside some Windows network with a special proxy for big companies. Is there a known problem with Internet Explorer 7? With a proxy system? The Windows network itself? Google only showed something in the context of NTLM (and such) authentication, but we aren't using this in the web application. Maybe it's in the way the proxy operates in the customer's network with Windows logins? (I'm no Windows expert. Just guessing.) I have no further information about the infrastructure.

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• S3 browser upload via POST: unable to handle errors gracefully

  - by samf

  I am writing an app where I want the customer to be able to upload to Amazon S3 straight from the browser. I can make this work just fine. But when errors occur, I want to handle them more gracefully than splattering an XML document on the customer's screen. I have a scheme that I think would work, but it's failing. Here's what I'm trying: Create a form to do the upload, and store the form on S3 itself, in the same domain as the "action" attribute of the form. Redirect the customer to this form. Now their browser is sitting on https://<bucket>.s3.amazonaws.com/something. The page contains a hidden iframe. The form sets its target to the iframe. The load event handler looks at the contents of the iframe, and acts upon it. So, something like this: <iframe id="foo" name="foo" style="display: none" /> <form target="foo" action="https://<bucket>.s3.amazonaws.com/"> <input type="hidden" name="..." value="..." /> <input type="file" name="file" /> </form> with this javascript (using jquery): function handler() { var message = $("#foo").contents().find('message').text(); alert(message); } $("#foo").load(handler); Using firebug, I can see that the iframe contains an XML document, that contains a "message" node. However, the .find('message') always fails to find anything within the XML document. Notice that the action of the form has the same domain, port, and scheme as the document itself. So, I don't think that I should be running afoul of the same-origin policy. Right? But it fails every time. This is using Firefox and Google Chrome browsers. Thanks for any advice!

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• Best practices for "search data class" in ASP.NET MVC

  - by Tim Ridgely

  Hi everybody, I'm hoping this isn't too subjective, but I'm new to ASP.NET MVC and I'm trying to figure out how others may have solved similar problems. Basically, I have two entities, Customers and Orders. A customer has many orders; an order belongs to exactly one customer. I'm making an Order Search feature that should allow a user to search for orders based on order or customer information. Pretty straightforward, I think. I've read in other posts that the search controller should use GET, but I think it makes more sense to use POST because of the large number of search params. I'm using Entity Framework to create my models, and that's in a separate class library project and namespace. This article talks about using binding instead of Request.Form to get at the POST data. Would it make decent sense to make a class to hold all the search data that could be materialized by the magic model binding? Otherwise I'd just be poking through the FormCollection to pull out particular values, which might be fine. Where would you recommend making such a class?

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• Is starting to use CDATA a breaking change?

  - by kicsit

  For interaction with a customer's application we use XML documents. That is, we send an XML over HTTP and receive a response XML document the same way. The customer specified two XML schemata that describe the format of both the request and reply. All was working fine, until one day the customer started to use CDATA sections in the response XML. We set up our parser unmindful of CDATA sections, so we failed to interpret them. My question is: Who made a mistake here? I tried to find an answer in the XML standards, but I'm still not sure. I think I cannot prescribe using or not using CDATA's in an XSD, is that right? If so, is it not enough to agree upon an XSD, but a separate agreement has to be made about CDATA sections? Or one is obliged to be prepared to parse CDATA and regular text as well? I'm interested in both your personal views and official statements too. Thank you!

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• Displaying Query Results Horizontally

  - by AndyD273

  I am wondering if it is possible to take the results of a query and return them as a CSV string instead of as a column of cells. Basically, we have a table called Customers, and we have a table called CustomerTypeLines, and each Customer can have multiple CustomerTypeLines. When I run a query against it, I run into problems when I want to check multiple types, for instance: Select * from Customers a Inner Join CustomerTypeLines b on a.CustomerID = b.CustomerID where b.CustomerTypeID = 14 and b.CustomerTypeID = 66 ...returns nothing because a customer can't have both on the same line, obviously. In order to make it work, I had to add a field to Customers called CustomerTypes that looks like ,14,66,67, so I can do a Where a.CustomerTypes like '%,14,%' and a.CustomerTypes like '%,66,%' which returns 85 rows. Of course this is a pain because I have to make my program rebuild this field for that Customer each time the CustomerTypeLines table is changed. It would be nice if I could do a sub query in my where that would do the work for me, so instead of returning the results like: 14 66 67 it would return them like ,14,66,67, Is this possible?

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• Counting unique XML element attributes using XSLT

  - by patrick_corrigan

  I've just started using XSLT and am trying to figure this out. Your help would be greatly appreciated. Example XML file <purchases> <item id = "1" customer_id = "5"> </item> <item id = "2" customer_id = "5"> </item> <item id = "7" customer_id = "4"> </item> </purchases> Desired HTML Output: <table> <tr><th>Customer ID</th><th>Number of Items Purchased</th></tr> <tr><td>5</td><td>2</td></tr> <tr><td>4</td><td>1</td></tr> </table> Customer with id number 5 has bought 2 items. Customer with id number 4 has bought 1 item.

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• What tool or scripts do you use to audit a Linux box?

  - by Sharjeel Sayed

  I use the following tools for my auditing needs A) System Auditing and Hardening (One time) 1) Linux Security Auditing Tool (Security centric,Text based output ) 2) Dmidecode ( Retrieves info from BIOS ) 3) Systeminfo ( Generates a nice html report) 4) Syssumm (Inactive since Oct 2000) 5) Rootkit Hunter (Does a basic config check in addition to rootkit checks) 6) CIS benchmarks 7) Bastille ( Interactive hardening and a security scoring tool) B) Automatic Auditing (as a cron job or a service) 1) Logwatch 2) Psad C) Remote Auditing 1) Nmap (Port scanning) 2) Nessus ( Remote Vulnerability check) D) Wikipedia 1) System profiler Any other tools/scripts which you can recommend?

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• How to use Zend Studion for Java development

  - by Itay Moav

  I have the Zend studio which a PHP editor based on Eclipse. I want to use it now to develop some Java. I think Zend has disabled all the Java centric project/views/perspectives that come with Eclipse (or may be not included the right plugins?) What steps should I take to use it, instead of having two eclipses open at the same time.

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• How can I use Zend Studio for Java development?

  - by Itay Moav

  I have the Zend Studio, which is a PHP editor based on Eclipse. I want to use it now to develop some Java. I think Zend has disabled all the Java centric project/views/perspectives that come with Eclipse (or may be not included the right plugins?) What steps should I take to use it, instead of having two Eclipse instances open at the same time.

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• Emacs and windows manager keyboard shortcuts without Win key

  - by Little Bobby Tables

  I found a classic M-Series keyboard and I want to use it. However, it does not have the "Windows" key (a.k.a "Super"), only the Shift, Control and Alt modifiers. My keyboard shortcuts are cluttered as-is, since that I try to control both Emacs and the windows manager (Gnome) only from the keyboard. I rely on the "Super" key to identify the windows manager shortcuts. What it the best practice for keyboard-centric work without the "Super" key?

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• Recommendation for a touch-enabled dev laptop

  - by Clay Shannon

  I don't keep up with hardware much, so would appreciate any tips on what would be a good touch-enabled laptop that I could use for both development and testing of Windows 8 ("Metro"/Store) apps. Is there even such an animal (a touch-centric laptop)? Or will I need to use a laptop for development (in which case I might be able to upgrade my RC version of Windows 8 on my existing laptop to RTM) and purchase a tablet for testing?

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• Data recovery for Mac

  - by josh3736

  I've got a Mac that won't boot and I'd like to recover whatever data I can before wiping the hard drive and reinstalling. I'm looking for something similar to TRK (which is Windows-centric) — boot from CD, mount the hard drive, and copy to a network share. I just noticed TRK does appear to support HFS+; has anyone had success with this?

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• WCF Data Service BeginSaveChanges not saving changes in Silverlight app

  - by Enigmativity

  I'm having a hell of a time getting WCF Data Services to work within Silverlight. I'm using the VS2010 RC. I've struggled with the cross domain issue requiring the use of clientaccesspolicy.xml & crossdomain.xml files in the web server root folder, but I just couldn't get this to work. I've resorted to putting both the Silverlight Web App & the WCF Data Service in the same project to get past this issue, but any advice here would be good. But now that I can actually see my data coming from the database and being displayed in a data grid within Silverlight I thought my troubles were over - but no. I can edit the data and the in-memory entity is changing, but when I call BeginSaveChanges (with the appropriate async EndSaveChangescall) I get no errors, but no data updates in the database. Here's my WCF Data Services code: public class MyDataService : DataService<MyEntities> { public static void InitializeService(DataServiceConfiguration config) { config.SetEntitySetAccessRule("*", EntitySetRights.All); config.SetServiceOperationAccessRule("*", ServiceOperationRights.All); config.DataServiceBehavior.MaxProtocolVersion = DataServiceProtocolVersion.V2; } protected override void OnStartProcessingRequest(ProcessRequestArgs args) { base.OnStartProcessingRequest(args); HttpContext context = HttpContext.Current; HttpCachePolicy c = HttpContext.Current.Response.Cache; c.SetCacheability(HttpCacheability.ServerAndPrivate); c.SetExpires(HttpContext.Current.Timestamp.AddSeconds(60)); c.VaryByHeaders["Accept"] = true; c.VaryByHeaders["Accept-Charset"] = true; c.VaryByHeaders["Accept-Encoding"] = true; c.VaryByParams["*"] = true; } } I've pinched the OnStartProcessingRequest code from Scott Hanselman's article Creating an OData API for StackOverflow including XML and JSON in 30 minutes. Here's my code from my Silverlight app: private MyEntities _wcfDataServicesEntities; private CollectionViewSource _customersViewSource; private ObservableCollection<Customer> _customers; private void UserControl_Loaded(object sender, RoutedEventArgs e) { if (!System.ComponentModel.DesignerProperties.GetIsInDesignMode(this)) { _wcfDataServicesEntities = new MyEntities(new Uri("http://localhost:7156/MyDataService.svc/")); _customersViewSource = this.Resources["customersViewSource"] as CollectionViewSource; DataServiceQuery<Customer> query = _wcfDataServicesEntities.Customer; query.BeginExecute(result => { _customers = new ObservableCollection<Customer>(); Array.ForEach(query.EndExecute(result).ToArray(), _customers.Add); Dispatcher.BeginInvoke(() => { _customersViewSource.Source = _customers; }); }, null); } } private void button1_Click(object sender, RoutedEventArgs e) { _wcfDataServicesEntities.BeginSaveChanges(r => { var response = _wcfDataServicesEntities.EndSaveChanges(r); string[] results = new[] { response.BatchStatusCode.ToString(), response.IsBatchResponse.ToString() }; _customers[0].FinAssistCompanyName = String.Join("|", results); }, null); } The response string I get back data binds to my grid OK and shows "-1|False". My intent is to get a proof-of-concept working here and then do the appropriate separation of concerns to turn this into a simple line-of-business app. I've spent hours and hours on this. I'm being driven insane. Any ideas how to get this working?

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• 2 Templates to one SharePoint Library, Default templates

  - by Anarkie

  Ok, I'm not a script writer, otherwise I'd have this automated already. I need a quick assist in the most basic steps possible. I have a SharePoint form library using InfoPath based forms. I have a "Public" template for my customers which submits to a "Private" library, through very granulated permissions so they cannot view the library. The Private library has it's own template based on the original Public template. This way I can transition one form's information seamlessly to the new template. The new Private template would have all of the internal details that we do not want the customer to see, but also all information fron the customer-filled Public form. Is there any way to default all items opened from the Private library to use the Private Template, even though they were submitted form the Public template?

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• How to set up a mini call center?

  - by Ralph

  I'm trying to figure out how to set up a miniature call center for a small business. Like, for 1-4 people to take calls, but hopefully expandable to more. We want to accept nation-wide calls, and then I guess distribute the calls among the available agents. If no one is available, I guess it should either put them in a queue and play some annoying music for them, or forward to call to an agent who has least-recently taken a call who can then quickly answer and say "please hold" until they're done their call. We want to have one phone number that customers can call. I guess we then need some kind of ACD system which would take each call and forward it to an agent based on some algorithm? Then we would need to purchase a separate phone line for each agent, plus one just for the distributor? Or do we need several "extra" lines to maintain a queue (one for each customer waiting too)? This "ACD" thing, is it just a device that you would plug a phone line into (or several?), and maybe connect to a computer, aided by some software? Or is a subscription thing that I would need from my local telephone provider? Next, the business we're running, the callers will be repeat customers. It would be helpful to automatically pull up their profile based on the incoming number. The "software" our agents will be running will just be a website where they can log in (preferably from home) and then enter some information they would obtain through the call. So, the system would have to somehow interface with the website if possible. If not, we'll just have to ask each customer for an identifier (phone number, username, customer number, or something). Is this possible? I guess each computer would need a device that the call would pass through, and then if I can somehow hook into that, then I can write some software that will interface with the site. So, where do I start? What hardware do we need to buy? What subscriptions do we need? We were thinking this magicJack might help us in accepting long-distance calls for cheaper, but my understanding is that they provide you with some weird-looking number, is there a way we could "mask" it with our toll-free number? And then pass the incoming calls through the distributor system, which would then get passed to the call-accepting device which would both allow an agent to answer the call and have a software hook? (I realize this might be partially out of the scope of SU, but I wasn't sure where else to ask. It is about computer(-aided) hardware and software anyway.) P.S.: I don't need any of that "press 1 to talk to..." or "say xyz to..." junk. Just a straight-forward, connect-to-next-available-agent system.

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• Set a login with username/password for SQL Server 2008 Express

  - by Ewald Stieger

  I would like to set a password and username for connecting to a server with SQL Management Studio 2008. I set up SQL Server 2008 Express on a customer's computer to host a DB used by an Access 2007 app. The customer should not be able to access the DB or connect with SQL Management Studio. How do I set up a login and remove any logins that allow a user to connect via Windows Authentication and without entering a username and password? I have not much experience with logins and controlling access.

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• Outlook receives winmail.txt attachment instead of Excel, PowerPoint or Word attachments from Lotus notes senders

  - by Philippe

  Ok so the title pretty much says it all. We are offering a Hosted Exchange solution for our customer. Everything is working fine except for one customer complaining that he is receiving winmail.dat or winmail.txt attachments instead of the actual Word Excel or PowerPoint attachments he should be receiving, only when these messages come from a specific European senders, that is using Lotus Notes. I know that usually the problem is coming from Outlook senders to other mail clients, but this is not the first they inform me of this but I can't find anything on the matter so far. Has anyone ever gotten and solved this problem? If not, does anyone have any idea regarding this? I had solved this problem a few months ago, by upgrading Outlook to SP2 and then uninstalling it using the Service Pack removing tool of Microsoft. It seems that only the latest SP1 version could work but not the SP2. The problem is that now nothing is working at all. Thank you for your help, Philippe

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• Best practice for authenticating DMZ against AD in LAN

  - by Sergei

  We have few customer facing servers in DMZ that also have user accounts , all accounts are in shadow password file. I am trying to consolidate user logons and thinking about letting LAN users to authenticate against Active Directory.Services needing authentication are Apache, Proftpd and ssh. After consulting security team I have setup authentication DMZ that has LDAPS proxy that in turn contacts another LDAPS proxy (proxy2) in LAN and this one passes authentication info via LDAP (as LDAP bind) to AD controller.Second LDAP proxy only needed because AD server refuses speak TLS with our secure LDAP implemetation. This works for Apache using appropriate module.At a later stage I may try to move customer accounts from servers to LDAP proxy so they are not scattered around servers. For SSH I joined proxy2 to Windows domain so users can logon using their windows credentials.Then I created ssh keys and copied them to DMZ servers using ssh-copy, to enable passwordless logon once users are authenticated. Is this a good way to implement this kind of SSO?Did I miss any security issues here or maybe there is a better way ofachieving my goal?

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• Outlook folder structure Template

  - by Filip Ekberg

  Having a lot of different customers and a lot of different areas to work with makes it trivial to have your mail folders in order. Everytime I get a new Project / Customer I want to add a certain Folder Structure in my "Customer" / "Project" sub directory. It might look like this: Customer_name/ Bugs Documents Important Support/ Done And as it is today, I have to manually add these manually, which is harsh when you have a lot of it going on and each sub directory under the customer_name directory needs to have "display all items" since it's important to me to see all Items in Bugs / Support / Important. Makes my life easier. So, Is it possible to Automize the process somehow? Macro? Folder Templates? What are my options?

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• Amazon EC2: possible to use elastic load balancing across web servers in multiple regions based on location of client?

  - by Tony

  Related to an another question I asked. This question seems similar but I'm wondering if there are any updates. To support a single site that has users all over the world, I will create EC2 web servers in the US, Asia and Europe regions. The web server instances in the US and Asia regions will be backed by RDS replicas. Is it possible to load balance across these three regions? So when a customer from Spain goes to example.com, she should be routed to the EC2 instances in Europe region, a customer in Miami should be sent to the instance in Eastern US region, etc. Is this possible to do this with just AWS features? Are there docs on how to set this up?

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• Temporarily Utilizing 304 Header on Apache for Crawlers

  - by Volomike

  I have a client who has a hosting arrangement with 400 customer sites all hosted through SuPHP in CGI mode on Apache. The sysop is now gone and the client is calling on me for rolling out a new PHP thing. Trouble is -- server load is very high right now and we have found that it's due to the crawlers. We had one customer in particular who complained of slow websites, and we engaged a 304 header plugin in his site against most crawlers, and his site perked right up. We'd like to lower that load by issuing a global 304 header to all the crawlers, letting human visitors through. I have a long list of user agent keywords to trap for. What's the best way to temporarily engage that global 304 header, while allowing human visitors to get right on through? I mean, I could roll out 400 .htaccess file changes, but it would be ideal to make this change in like one central Apache config and then it automatically affect all the sites at once.

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• nsdata to nsstring to nsdata

  - by Jayshree

  Hello everybody. I am calling the webservices. The web service returns data in xml format. Now the problem is the xml data is not being received in proper format. In place of "<", "" it returns in html format like-(<) and (>) . So i assigned the xmldata to a NsMutableString and replaced the escape characters so that the format of xml data is proper. Then i reassigned the NSMutableString to NSData so that i can parse the tags. but the problem is the xmlparser stops right where the xml data is. Where i replaced the tags. it doesnt go further. can anybody make me understand what is going on???? This is the xml response from webservice that i called. <?xml version="1.0" encoding="ISO-8859-1"?><SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"> <SOAP-ENV:Body> <ns1:GetCustomerInfoResponse xmlns:ns1="http://aa.somewebservice.com/phpwebservice"> <return xsi:type="xsd:string"> &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;&lt;customer&gt;&lt;id&gt;1&lt;/id&gt;&lt;customername&gt;Hitesh&lt;/customername&gt;&lt;phonenumber&gt;98989898&lt;/phonenumber&gt;&lt;/customer&gt; </return> </ns1:GetCustomerInfoResponse> </SOAP-ENV:Body> </SOAP-ENV:Envelope> And this is after i replaced the tags. <?xml version="1.0" encoding="ISO-8859-1"?><SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"> <SOAP-ENV:Body> <ns1:GetCustomerInfoResponse xmlns:ns1="http://a.somewebservice.com/phpwebservice"> <return xsi:type="xsd:string"> <?xml version="1.0" encoding="utf-8"?> <customer><id>1</id><customername>Hitesh</customername><phonenumber>98989898</phonenumber></customer> </return> </ns1:GetCustomerInfoResponse> </SOAP-ENV:Body></SOAP-ENV:Envelope> Now the problem is while parsing the parser only goes upto return tag. And then it is stuck there. It doesnt go any further. So wat do i do? anybody care to help me?

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• How to disable PHP's ini_set for specific configuration options?

  - by Dunedan

  I'm running a setup with PHP 5.3.8 and use php-fpm with it's chroot functionality to separate multiple customers. So each customer has it's own chrooted PHP-environment, which is quite fine. I now want to disallow that a customer can change the *memory_limit* of his PHP-instance by using *ini_set*. On the other hand I don't want to disable *ini_set* completely. So I'm searching for a possibility to disable the possibility to set specific PHP configuration options (like *memory_limit*) via *ini_set*. Does somebody know how to achieve that?

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• How to enable customers to use their own domain for sites hosted by me [closed]

  - by Scott

  I am thinking of running a self-site builder. But was wondering how would I allow customers to use their own domains that they already own. Is that even possible? Let's say my site is www.bestsitebuildingwebsite.com and each customer has urls like this www.bestsitebuildingwebsite.com/frances www.bestsitebuildingwebsite.com/eden www.bestsitebuildingwebsite.com/john And a customer has a domain called widgets.com Is it actually possible domain widgets.com to go to my site somehow and have HASHES on the URL still work (my site makes use of hashes for AJAX queries). And their site still have good SEO with Google? Thanks Scott

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• Amusing or Sad? Network Solutions

  - by dbasnett

  When I got sick my email ended up in every drug sellers email list. Some days I get over 200 emails selling everything from Viagra to Xanax. Either they don't know what my condition is or they are telling me you are a goner, might as well chill-ax and have a good time. In order to cut down on the mail being downloaded I thought I would add all of the Junk email senders from Outlook to my Network Solution mail server. Much to my amazement I could not find that import Spammers button, so I submitted a tech support request. Here is the response: Thank you for contacting Network Solutions Customer Service Department. We are committed to creating the best Customer experience possible. One of the first ways we can demonstrate our commitment to this goal is to quickly and efficiently handle your recent request. We apologize for any inconvenience this might have caused you. With regard to your concern, please be advised that we cannot import blocked senders in to you e-mail servers. An alternative option is for you to create a Custom Filter that filters unwanted e-mails. To create a Custom Filter: Open a Web browser (e.g., Netscape, Microsoft Internet Explorer, etc.). Type mail.[domain name].[ext] in the address line. Login to your Network Solutions email account. Click on the Configuration left menu tab. Click on the Custom Filter link. Type the rule name. blah, blah, blah Basically add them one at a time. "We are committed to creating the best Customer experience possible." No you are not. You are trying to squeeze every nickle you can out of me. "With regard to your concern, please be advised that we cannot import blocked senders in to you e-mail servers." Maybe I should apply for a job to write those ten complicated lines of code... Maybe I should question my choice of vendors, because if they truly "cannot" then they are to stupid to have my business. It is both amusing and sad. I'll be posting this in every forum I am a member of.

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