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• How would I / could I obtain an reasonably comprehensive list of domain names?

  - by Simon

  I know that domain names are constantly changing, and I know there are a lot of them, but there is clearly a region of the domain name space which is stable. How would I go about getting a list, even a very big one? Such a thing must logically exist, even if it is in a distributed form, because the web's DNS servers resolve names to IP addresses. So in theory if I could poll all the DNS servers in the world at a moment in time I would have the complete list of mapped names. Is there a practical way of doing that? As an aside, does anyone have any good estimates of how many domain names exist at the moment?

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• Do Any Client-Side JavaScript Frameworks Integrate Well With Node.js+Express.js+socket.io.js?

  - by Tom D

  I'm building an webapp using Node.js+Express.js+socket.io.js on the backend. Do any of the popular front-end frameworks (Agility, Angular, Backbone, Closure, Dojo, Ember, GWT, jQuery, Knockback, Knockout, Spine, YUI, etc) integrate well with this backend for "real-time" applications? I want my application to have a very "real-time" feel. Specifically, when a user submits a form I want the information to be sent using web sockets to the backend for validation and (if validation passes) to be updated in the database. Then, the server-side will use web sockets to send a confirmation that the data was saved or some list of errors. I will use the server's response to update the page using JavaScript. I know all this can be done with any of the listed frameworks. I'm interested in features of particular frameworks that will help the framework integrate better with the Node-based backend than the other frameworks.

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• Windows Azure: need to know the data processing time

  - by veda

  I have stored some files in the form of blobs on azure and I have written an application that would access these blobs. When I host this application as a web role on azure, it works perfectly and I am happy with that. But now, I wanted to know “what is the query time taken to access each blob file?” I was searching for this through the Microsoft Azure Storage SLA and I found that for GetBlob request type, the maximum processing time should be within the product of 2 seconds multiplied by the number of MBs transferred in processing the request. I am still unclear. What is the actual processing time of my data query? How can I measure it? Can I be able to speed up the processing time? I can understand that the processing time depends on internet speed, location of the data center where my data is being stored, and location of data center where my application is being hosted. But still, will I be able to speed up my query?

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• How to use ORDER BY, LOWER .. in SQL SERVER 2008 with non-unicode data

  - by hgulyan

  Hi, The question is about Armenian. I'm using sql server 2005, collation SQL_Latin1_General_CP1_CI_AS, data mostly is in Armenian and we can't use unicode. I tested on ms sql 2008 with a windows collation for armenian language ( Cyrillic_General_100_ ), I have found here, ( http://msdn.microsoft.com/en-us/library/ms188046.aspx ) but it didn't help. I have a function, that orders hex values and a lower function, which takes each char in each string and converts it to it's lower form, but it's not acceptable solution, it works really slow, calling that functions on every column of a huge table. Is there any solution for this issue not using unicode and not working with hex values manually?

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• How does a virtual machine work?

  - by Martin

  I've been looking into how programming languages work, and some of them have a so-called virtual machines. I understand that this is some form of emulation of the programming language within another programming language, and that it works like how a compiled language would be executed, with a stack. Did I get that right? With the proviso that I did, what bamboozles me is that many non-compiled languages allow variables with "liberal" type systems. In Python for example, I can write this: x = "Hello world!" x = 2**1000 Strings and big integers are completely unrelated and occupy different amounts of space in memory, so how can this code even be represented in a stack-based environment? What exactly happens here? Is x pointed to a new place on the stack and the old string data left unreferenced? Do these languages not use a stack? If not, how do they represent variables internally?

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• jQuery to PHP: no input... kinda

  - by Seva Alekseyev

  Hi all, I'm using jQuery to post HTTP requests to my PHP page (Apache/Linux, if that matters). I carefully validate on the client so that empty requests are not sent. However on occasions, I'd get an empty request like this: - $_POST collection empty ($_GET collection also empty); - Content-Length is nonzero (a number below 100, consistent with a valid POST from my script) - Content-Type properly application/x-www-form-urlencoded - reading from php://input yields an empty string It's as if $_POST is somehow eaten on the way. I checked the code very carefully - I don't do anything to the contents of $_POST. Any ideas, please?

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• Is Rails default CSRF protection insecure

  - by schickb

  By default the form post CSRF protection in Rails creates an authenticity token for a user that only changes when the user's session changes. One of our customers did a security audit of our site and flagged that as an issue. The auditor's statement was that if we also had a XSS vulnerability that an attacker could grab another user's authenticity token and make use of it for CSRF attacks until the user's session expired. But is seems to me that if we had an XSS vulnerability like that an attacker could just as easily grab another user's session cookie and login as that user directly. Or even just make call to our REST Api as the user being attacked. No secondary CSRF attack needed. Have I missed something? Is there a real problem with the default CSRF protection in Rails?

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• Simple PHP Regex question

  - by Dave Kiss

  Hi all, I'd like to validate a field in a form to make sure it contains the proper formatting for a URL linking to a Vimeo video. Below is what I have in Javascript, but I need to convert this over to PHP (not my forte) Basically, I need to check the field and if it is incorrectly formatted, I need to store an error message as a variable.. if it is correct, i store the variable empty. // Parse the URL var PreviewID = jQuery("#customfields-tf-1-tf").val().match(/http:\/\/(www.vimeo|vimeo)\.com(\/|\/clip:)(\d+)(.*?)/); if ( !PreviewID ) { jQuery("#cleaner").html('<div id="vvqvideopreview"><?php echo $this->js_escape( __("Unable to parse preview URL. Please make sure it's the <strong>full</strong> URL and a valid one at that.", 'vipers-video-quicktags') ); ?></div>'); return; } The traditional vimeo url looks like this: http://www.vimeo.com/10793773 Thanks!

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• [JS] XMLHttpRequest problem

  - by mcco

  I am trying to do "POST" with XMLHttpRequest in a firefox extension, and after that I try to get the "Location" header and open it in a new tab. For some reason, the XMLHttpRequest doesn't contain a location header. My code function web(url,request) { var http = new XMLHttpRequest(); http.open('POST',url,true); http.setRequestHeader('Content-Type','application/x-www-form-urlencoded'); http.onreadystatechange=function() { if(http.readyState == 2) { alert(http.getResponseHeader("Location")); } } http.send(request); } Also, if I change the alert to getAllResponseHeaders() to see all headers, I just don't see the location header there. If I try to spy on the request of the original site with Firebug, it does show me the location header in the response. Please help me resolve my issues. Thanks :) P.S. I'm also unable to open a link in new tab using window.open(url, this.window.title);, but as that's not directly related to the rest of this I'll post a separate question to ask about it.

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• What is the best way to read the uploaded files from Request.Files, StreamReader or BinaryReader or

  - by ramesh.nagul

  I have a form where the user can upload multiple files. I am using MVC 2.0 and in my controller I need to call a webservice that is a common import interface requires the files to passed in as byte[]. .NET exposes Request.Files as a HttpFileCollectionBase and I access the filehandle using HttpPostedFile or HttpPostedFileBase that provides access to the Stream member. What is the best way for me to read the bytes from the stream? BinaryReader? StreamReader? BufferedStream?

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• Is JAX-RS suitable as a MVC framework?

  - by deamon

  JAX-RS has some MVC support, but I wonder if JAX-RS is really a good choice to build web application for human use. If a user enters wrong or incomplete information in a form, it should be displayed again like with Grails or Wicket. Is there a comfortable way to do this with JAX-RS? As far as I know the URI mapping doesn't work correctly, if not all required parameters are given or there are type conversion problems (with Date for example). Is that correct? Is there support for internationalized templates?

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• Flash security popup is unclickable on a layered window

  - by sjlewis

  I have a layered (TransparencyKey is set) winform w/ a WebBrowser control on it that navigates to a page that contains flash (swf). Everything works okay except that when flash shows a security popup, none of the buttons on the popup respond to mouse click, so I can't click Allow/Deny. Right-click works but only shows the context menu that is normal to flash. I tried overriding WndProc on the WebBrowser control, as suggested here, but it still does not respond to mouse click. If I comment out the TransparencyKey setting, even w/o the WndProc override, the buttons respond. I thought this'd be a container issue so I decided to host the swf file on the form, using the example here, but this, too, had the same problem w/ layered window. So, is there another way that can get around this problem? What is it w/ layered window that renders the buttons on the flash popup unclickable? What is it w/ flash...?

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• A tale of two dev accounts

  - by TechTwaddle

  Note: I am currently in the process of relocating my blog from http://www.geekswithblogs.net/techtwaddle to my new address at http://www.techtwaddle.net I suggest you point your feed readers to the new address as I slowly transition to my new shared-hosted, ad-free wordpress blog :)   You probably remember my rant from a while back about my windows mobile developer account having problems with the new AppHub, well, there have been few developments and I thought I should share it with you. First up, the issue isn’t fixed yet. I still cannot login to AppHub using my windows mobile 6.x developer account and can’t view details of my Minesweeper app. Who knows how many copies its sold. I had numerous exchanges with Microsoft’s support team on the AppHub forums and via email as well (support ticket), but somehow we never managed to get to the root of it. In fact, the support team itself grew so tired of the problem that they suggested I create a new dev account. I grew impatient, and it was really frustrating to have an app ready for submission but not being able to do anything with it. Eventually, the frustration had to show somewhere, and it was on this forum thread Prabhu Kumar in reply to Nick Nick, I feel for you and totally understand the frustration. Since day one I have been getting the XBOX profile linking error, We encountered an issue connecting your App Hub account with your Xbox Live Profile. Please visit Xbox.com and update your contact information. After you have updated your contact information, please return to the App Hub (https://users.create.msdn.com/Register) to continue. I have an app published on the Windows Mobile 6.x marketplace since Aug, now I can't view the details of this app. I completed work on my WP7 application 1.5 months ago and the first version is ready for submission to marketplace, only if I can login. You can imagine how frustrating all this can be, the issue has taken far too long to be fixed, this has drained all my motivation. I have exchanged numerous mails with Microsoft support team on this issue, and from the looks of it they really are trying their best, unfortunately, their best is not good enough for some of us. During the first week of December I was told that there would be an update happening to AppHub around mid of December. I was hoping that the issue would be fixed but it wasn't. After the update the only change I notice is that the xbox.com link on the error page now takes me to the correct link. Previously, this link used to take me to the 404 page you mentioned above. Out of desperation, I am now considering creating another developer account on AppHub with a new live id, even this I am not 100% sure will work. I asked the support team when the next update to AppHub was planned and got this reply, "We do not have  release date to announce for the next App Hub update at this time. In regards to the login issue you are experiencing at this point the only solution would be to create a new account with a different live ID but make sure to go to xbox.com before hand to get all the information in order on that side." I know it's an extra $99, and not that I can't afford it but it doesn't feel right and I shouldn't have to be doing it in the first place. I have lost all hope of this issue being resolved. I went ahead and created a new dev account, the id verification was in progress when Shaun Taulbee of Microsoft, who has been really helpful in the forums, replied saying, If you find it necessary to pay again to create a new account due to a Microsoft problem, send in a support request asking for a refund and we'll review it (and likely approve it given the circumstances). The thought of refund made me happy, but I had my doubts. So once my second account was verified by Geotrust I applied for a refund through the developer dashboard, by creating a support ticket. Couple of days later I got an email from Microsoft saying that the refund had been approved! yay! Few days and the refund showed up on my bill, Well, thank you Microsoft, it means a lot. I am glad it’s over now. The new account works flawlessly. I would still like to get my first account working again and look at my app numbers for Win Mo 6.x, and probably transfer the credits to the new account somehow, but I’ll save it for another day. If you’ve had similar problems with the AppHub, and had to create a new account to submit your app, I suggest you contact the support team and get your dollars refunded!

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• Most useful parallel programming algorithm?

  - by Zubair

  I recenty asked a question about parallel programming algorithms which was closed quite fast due to my bad ability to communicate my intent: http://stackoverflow.com/questions/2407631/what-is-the-most-useful-parallel-programming-algorithm-closed I had also recently asked another question, specifically: http://stackoverflow.com/questions/2407493/is-mapreduce-such-a-generalisation-of-another-programming-principle/2407570#2407570 The other question was specifically about map reduce and to see if mapreduce was a more specific version of some other concept in parallel programming. This question (about a useful parallel programming algorithm) is more about the whole series of algorithms for parallel programming. You will have to excuse me though as I am quite new to parallel programming, so maybe MapReduce or something that is a more general form of mapreduce is the "only" parallel programming construct which is available, in which case I apologise for my ignorance

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• Bluimp file upload send data to the server on .fileupload

  - by MyName

  OK I've Googled...Googled and Googled again with no avail on how I can send data to the server like an ajax call's data option for the file upload: $('#file_upload').fileupload({ dataType: 'json', url: "@(Url.Action("UploadFiles", "ExcelUpload"))", // formData: function(form) { return [{ name: "dataTable", value : "@(Model)"}];}, progressall: function (e, data) { $(this).find('.progressbar').progressbar({ value: parseInt(data.loaded / data.total * 100, 10) }); }, done: function (e, data) { BadFile(e, data); } }); controller would look something like this: [HttpPost] public ContentResult UploadFiles(Mytype param1, MyType Param2) { .. } I want to do something similar to this: $.ajax({ url: "@(Url.Action("Action", "Controller"))", type: "post", data: { param1: value, param2: @(Model) } }); On the fileupload callback. Is this possible? How can I pass values to the ServerSide? Should I switch to a different uploader..? Please help me out! I need to resolve this as soon as possible.

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• Java add leading zeros to a number....

  - by user69514

  I need to return a string in the form xxx-xxxx where xxx is a number and xxxx is another number, however when i have leading zeros they disappear. I'm trying number formatter, but it's not working. public String toString(){ NumberFormat nf3 = new DecimalFormat("#000"); NumberFormat nf4 = new DecimalFormat("#0000"); if( areaCode != 0) return nf3.format(areaCode) + "-" + nf3.format(exchangeCode) + "-" + nf4.format(number); else return exchangeCode + "-" + number; } } I figured it out: public String toString(){ NumberFormat nf3 = new DecimalFormat("000"); NumberFormat nf4 = new DecimalFormat("0000"); if( areaCode != 0) //myFormat.format(new Integer(someValue)); return nf3.format(new Integer(areaCode)) + "-" + nf3.format(new Integer(exchangeCode)) + "-" + nf4.format(new Integer(number)); else return nf3.format(new Integer(exchangeCode)) + "-" + nf4.format(new Integer(number)); }

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• Can I use XText for a DSL involving an XML file type?

  - by Chris

  I have defined a small DSL that is mostly written in the form of different types of XML files in conjuction with some property files. This works very well but I wish to create an Eclipse Editor to make editing these files easier for beginners (I already have a working parser). The main XML file can reference some items from the .properties files and vice-versa. THe main xml file can also reference other XML files. Certain options should only be available in the main xml file based on the contents of the .properties files and based on some osgi plugins that can be added to the DSL project (the syntax is dynamic depending on context). The structure of the language is fixed but the options available in each attribute or the choice of attributes themselves changes depending on metadata contained in plugin .jar files. Questions: Does XText support dynamic syntax (validation changes depending on external factors)? Does XText support XML files / .properties files? Thank you very much for your help in advance.

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• HTTP Digest Authentication Fails With URL Parameters (CakePHP)

  - by NathanGaskin

  I have a RESTful API set up and working with CakePHP using mapResources() and parseExtensions(). Authentication is handled by CakePHP's security component using HTTP Digest Authentication. Everything works fine, unless I add parameters to the url, in the form: http://example.com/locations.xml?distance=4 Which causes the authentication to always fail. Any ideas? Edit: This seems to be an issue with the regex in parseDigestAuthData(). There's a semi-fix here: http://old.nabble.com/paginator-conflicts-with-Security-%3ErequireLogin---td16301573.html which now allows me to use the format: http://example.com/locations/index/distance:4/.xml But that's not RESTful and doesn't look all that pretty. Still, getting closer!

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• Retrieve selected elements in GeckoWebBrowser

  - by Mostafa Mahdieh

  I am using GeckoFX version 1.9.1.0 with C#.NET. I have a placed a GeckoWebBrowser Component (geckoWebBrowser1) and a Button (button1) in a form and have navigated the browser to a page. Some text in the page can be selected. This text is composed of one or more DOM elements. When button1 is clicked, I want to retrieve the DOM elements that compose the selected text in the page and give an id to one of those elements and save add these ids to a list (in C# space). How can I do this?

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• jquery html attribute not working in IE

  - by Gopal

  I am using country and state dropdowns in my form. Whenever the user selects the country in the dropdown, the respective states of the country will populate in the states dropdown. I am populating the states in the dropdown using ajax call. The problem is that the states get populated in Mozilla but it doesnt work in IE. I guess there is some problem in jquery while loading the states in the states dropdown. The jquery code i am using is $('select#edit-country').change(function(e) { $.getJSON("loadContactUsStates",{id: $(this).val(), ajax: 'true'}, function(j){ var options = ''; for (var i = 0; i < j.length; i++) { options += '<option value="' + j[i].optionValue + '">' + j[i].optionDisplay + '</option>'; } <!-----I guess the problem is with the below line------------------> $("select#edit-state").html(options); })//end json });

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• Reading correctly alphanumeric fields into R

  - by gd047

  A tab-delimited text file, which is actually an export (using bcp) of a database table, is of that form: 102 1 01 e113c 3224.96 12 102 1 01 e185 101127.25 12 102 2 01 e185 176417.90 12 102A 3 01 e185 26261.03 12 I tried to import it in R with a command like data <- read.delim("C:\\test.txt", header = FALSE, sep = "\t") The problem is that the 3rd column which is actually a varchar field (alphanumeric) is mistakenly read as integer (as there are no letters in the entire column) and the leading zeros disappeared. The same thing happened when I imported the data directly from the database, using odbcConnect. Again that column was read as integer. str(data) $ code: int 1 1 1 1 1 1 6 1 1 8 ... How can I import such a dataset in R correctly, so as to be able to safely populate that db table again, after doing some data manipulations?

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• Generic Text Only printer driver mangles control codes

  - by Terry

  If an escape character (or most other characters < 0x20) is sent to the generic / text only printer it gets printed as a period. Using the code in the WinDDK is it possible to 'correct' this behaviour so that it passes it through unmodified? The general scenario for this is that some application ('user app') outputs a document to a windows printer. My application requires this data in plain text form and so what I do is run a generic / text only printer that talks to a virtual com port. This generally works fine except where the 'user app' outputs binary data to the print queue without using the correct mechanism (which seems to work fine on some printer drivers, such as the Epson POS ones, but not the generic / text only one). I've tried changing the print processor selection without success and also tried looking at the gtt files to see if I could readily map in these characters as though they were printable, but the minidriver tool won't let me do that. Any suggestions?

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• No Flash, How do i handle jcupload ?

  - by acidzombie24

  I am using http://www.jcupload.com/ (basic) to upload files. I am considering having a friend write a more custom version or to do magic with ajax; so the solution should be able to work without that. With jcupload i include css, a script and write <div id="jcupload_content"></div> in my html and i am done. Problem is, with no flash i get an object box. Instead i would like is an iframe or a html form to upload the file. How do i do this? Should i detect flash from javascript and overload the div myself if no flash is available? How do i detect if flash is available? with jquery i know i can write something like $('#jcupload_content').innerHtml = blah; How do i handle the flash part?

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• Internationalize HelloWorld program .NET

  - by RockStarInTraining

  I have small test app which has 2 resource files (Resources.resx & Resources.de-DE.resx) with the same exact string names, but one has the strings converted to German. For my form I set the Localize property to ture. In my application I am getting the strings as such: this.Text = Properties.Resources.frmCaption; In my release folder I get a de-DE folder with a dll named International_test.resources.dll. I try to distribute this to a machine which is set to German and all of the strings pulled are still english. I tried keeping the International_test.resources.dll in the de-DE folder or just put in in my apps directory. What am I doing wrong or what do I need to do to get the German resource file to be used?

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• How to make TinyMCE work inside an UpdatePanel?

  - by lucian.jp

  I'm trying to do something that many people seem to have been able to do but which I am unable to implement any solution. The TinyMCE control works pretty well in an asp.net form until you enclose it with an UpdatePanel, which then breaks after postback. I have tried some fixes like the RegisterClientScriptBlock method, but am still unsuccessful, I still lose the tinyMCE control after postback. Below is a full test project (VS 2008) provided with a Control outside UpdatePanel and one inside, with a button on each to generate postback. Also in the project I have a EditorTest control which include commented code of some calls I tried, in case it gives anyone any ideas. CODE SAMPLE Here are some sources for some solutions on the MCE forum : AJAX UpdatePanel

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