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  • Is OpenID too complicated?

    - by John Leidegren
    I'm beginning to seriously doubt the OpenID community despite that fact that it works. I'm in the process of currently evaluating OpenID as an authentication service for 'this' site and while the promises are great, I just can't get it to work. And I'm really lost. I ask of the SO community to help me out here. Give me answers and show me examples so I can leverage this in the way it was meant to be. My scenario is very typical. I want to authenticate users through a specific Google Apps domain. If you have access to this Google Apps domain, then you have access to my web application. Where I get lost, is all the prerequisites and dependencies involved. What is XRD? What is Yadis? Why do I need XRD and Yadis? What do I need to do to deploy OpenID authentication on my website? Also, this is really important to me. When I login to SO, I use my Google Account. When I click the login button I'm presented with this confirmation page. Where I'm granting SO the right to use my Google Account credentials. Somehow, Google knows that it's "Stackoverflow.com" that's asking me if it's okay to login. And I wish to know what manner of control I have over this little text. I intend to deploy OpenID on several different domains but I would prefer if they would all work without having to be individually configured with special parameters, such as secret API keys and what not. However, I don't know for sure if this is a prerequisite of OpenID, that or the Federated Login API that Google provides.

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  • Why does C++ linking use virtually no CPU? (updated)

    - by John
    On a native C++ project, linking right now can take a minute or two, yet during this time CPU drops from 100% during compilation to virtually zero. Does this mean linking is primarily a disk activity? If so, is this the main area an SSD would make big changes? But, why aren't all my OBJ files (or as many as possible) kept in RAM after compilation to avoid this? With 4Gb of RAM I should be able to save a lot of disk access and make it CPU-bound again, no? update: so the obvious follow-up is, can VC++ compiler and linker talk together better to streamline things and keep OBJ files in memory, similar to how Delphi does?

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  • How to do a Post/Redirect/Get using Sinatra?

    - by John Topley
    What's Sinatra's equivalent of Rails' redirect_to method? I need to follow a Post/Redirect/Get flow for a form submission whilst preserving the instance variables that are passed to my view. Does the redirect method preserve them? (I'm at work at the moment and don't have access to Sinatra to try for myself.)

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  • NServiceBus specify order of Handlers execution

    - by John Simons
    Just wondering if this is the way to specify the order to run a handler (AuthorizationHandler) before all others? public void SpecifyOrder(Order order) { order.Specify(First<AuthorizationHandler>.Then<IHandleMessages<IMessage>>()); } It just feels odd to add Then<IHandleMessages<IMessage>>(). Is there a nicer way of saying to the Bus execute x handler before all others?

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  • Best way to use the same HTML on static web-pages

    - by John
    If you use dynamic pages like JSP or asp.net, you can have your page template included, and then content added. But what if you have no server-side component and all pages are just HTML/JS? You can of course create a template then copy it for each page, but then if you want to change something you risk having to modify every page, even if you put most styling in CSS properly. Are there any non-awful ways to do this? I could see that an iframe could be used to load the content into the central page but that sounds nasty. Does HTML provide any way to include a base file and add to it?

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  • C++: use array of strings wrapped in namespace?

    - by John D.
    I got the following code, wishing to wrap a group of strings nicely in a namespace: namespace msgs { const int arr_sz = 3; const char *msg[arr_sz] = {"blank", "blank", "blank" }; msg[0] = "Welcome, lets start by getting a little info from you!\n"; msg[1] = "Alright, bla bla bla.."; msg[2] = "etc."; } The code inside works nicely inside a function, but I don't know how to return an array from it. The namespace idea LOOKS fine, but it returns on the last three lines: error: expected constructor, destructor, or type conversion before ‘=’ token Why can't I define the array inside a namespace, do I need to do something first? It's nice because I can call it like printf(msgs::msg[1]) etc. I want to do this I just can't wrap my head around what's wrong :(

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  • Comma separated values in a database field

    - by John Doe
    I have a products table. Each row in that table corresponds to a single product and it's identified by a unique Id. Now each product can have multiple "codes" associated with that product. For example: Id | Code ---------------------- 0001 | IN,ON,ME,OH 0002 | ON,VI,AC,ZO 0003 | QA,PS,OO,ME What I'm trying to do is create a stored procedure so that I can pass in a codes like "ON,ME" and have it return every product that contains the "ON" or "ME" code. Since the codes are comma separated, I don't know how I can split those and search them. Is this possible using only TSQL? Edit: It's a mission critical table. I don't have the authority to change it.

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  • MySQL - Counting rows in preparation for greatest-n-per-group not working?

    - by John M
    Referring to SO and other sites have given me examples of how to use MySQL to create a 'greatest-n-per-group' query. My variant on this would be to have a query that returns the first 3 rows of each category. As the basis for this I need to sort my data into a usable sequence and that is where my problems start. Running just the sequence query with row numbering shows that changes in category are mostly ignored. I should have 35 categories returning rows but only 5 do so. My query: set @c:=0; set @a:=0; SELECT IF(@c = tdg, @a:=@a+1, @a:=1) AS rownum, (@c:=tdg) , julian_day, sequence, complete, year, tdg FROM tsd WHERE complete = 0 order by tdg, year, julian_day, sequence Do I have a syntax mistake with this query?

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  • WINDOWS: Your computer hangs. You can windows + R (run dialog) but performance is so halted taskMGR

    - by John Sullivan
    The question is, what process are available to try to recover from total system instability before pulling the plug when we can do nothing but programs or batches in the path from the run dialog (windows + r key), and performance is so dead that taskMGR / procEXP / other programs with visual guis are not usable? I am not a windows expert, but ideally someone out there has written a program that does more or less stuff like this: Immediately set (or perhaps I can set from the run prompt) its priority to extremely high, evaluate performance bottlenecks. E.g. is CPU 100%? If so identify offending program(s) or problems. Attempt / log fixes, then provide crude feedback asking the user if his performance has stabilized enough to abort, wait a few seconds, if no feedback continue, etc. etc. Eventually try to do any "system cleanup" if the program decides it cannot recover and perhaps finally provide a series of beeps to the user, or what have you, to say "OK, I give up, time to pull the plug". Ideally create a log, when able. These kinds of horrible hangs are a situation where surely trying something, anything, is better than nothing -- as long as that something is intelligent -- when the alternative is ripping out the power coord. Again, I am not a windows expert, so perhaps there is a much more elegant "hands on" approach I am not aware of.

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  • Jquery conditionals, window locations, and viewdata. Oh my!

    - by John Stuart
    I have one last thing left on a project and its a doozy. Not only is this my first web application, but its the first app i used Jquery, CSS and MVC. I have no idea on how to proceed with this. What i am trying to do is: In my controller, a waste item is validated, and based on the results one of these things can happen. The validation is completed, nothing bad happens, which sets ViewData["FailedWasteId"] to -9999. Its a new waste item and the validation did not pass, which sets ViewData["FailedWasteId"] to 0. Its an existing waste item and the validation did not pass, which sets ViewData["FailedWasteId"] to the id of the waste item. This ViewData["FailedWasteId"] is set on page load using <%=Html.Hidden("wFailId", int.Parse(ViewData["WasteFailID"].ToString()))%> When the validations do not pass, then the page zooms (by window.location) to an invisible div, opens the invisible div etc. Hopefully my intentions are clear with this poor attempt at jquery. The new waste div is and the existing item divs are dynamically generated (this i know works) " So my question here is... Help? I cant even get the data to parse correctly, nor can i even get the conditionals to work. And since this happens after post, i cant get firebug to help my step through the debugger, as the script isnt loaded yet. $(document).ready(function () { var wasteId = parseInt($('#wFailId').text()); if (wasteId == -9999) { //No Issue } else if (wasteId < 0) { //Waste not saved to database } else if (wasteId == 0) { //New Waste window.location = '#0'; $('.editPanel').hide(); $('#GeneratedWasteGrid:first').before(newRow); $('.editPanel').appendTo('#edit-panel-row').slideDown('slow'); } else if (wasteId > 0) { //Waste saved to database } });

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  • Overhead of calling tiny functions from a tight inner loop? [C++]

    - by John
    Say you see a loop like this one: for(int i=0; i<thing.getParent().getObjectModel().getElements(SOME_TYPE).count(); ++i) { thing.getData().insert( thing.GetData().Count(), thing.getParent().getObjectModel().getElements(SOME_TYPE)[i].getName() ); } if this was Java I'd probably not think twice. But in performance-critical sections of C++, it makes me want to tinker with it... however I don't know if the compiler is smart enough to make it futile. This is a made up example but all it's doing is inserting strings into a container. Please don't assume any of these are STL types, think in general terms about the following: Is having a messy condition in the for loop going to get evaluated each time, or only once? If those get methods are simply returning references to member variables on the objects, will they be inlined away? Would you expect custom [] operators to get optimized at all? In other words is it worth the time (in performance only, not readability) to convert it to something like: ElementContainer &source = thing.getParent().getObjectModel().getElements(SOME_TYPE); int num = source.count(); Store &destination = thing.getData(); for(int i=0;i<num;++i) { destination.insert(thing.GetData().Count(), source[i].getName(); } Remember, this is a tight loop, called millions of times a second. What I wonder is if all this will shave a couple of cycles per loop or something more substantial? Yes I know the quote about "premature optimisation". And I know that profiling is important. But this is a more general question about modern compilers, Visual Studio in particular.

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  • Code example with annotation in JavaDoc

    - by John
    Hello, my JavaDoc doesn't work when I have a code example with an annotation. Any suggestions? /** * <pre> * public class Demo { * @DemoAnnotation * public void demoMethod() { * } * } * </pre> */ @Retention(RetentionPolicy.RUNTIME) @Target({ElementType.METHOD}) public @interface DemoAnnotation {

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  • Flash relationship map

    - by John
    Hi, Does anyone know any Flash fla's which are out there and free which do something similar to http://audiomap.tuneglue.net/ (you have to type in a search term to see it in action). What I'm after is the flash to create the node in the middle which expands out into children and then each of those children can be expanded out into more children, etc. while keeping their distance from one another so as to not overlap. I'd like it so that if you clicked on a node to expand it, it would shoot off to a web site and get an xml feed which could then be used to create the children. Thanks

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  • Using PHP interfaces in Codeigniter

    - by John Stewart
    I am trying to find out how can I used PHP interfaces in my MVC design. I want to make sure that the design enforces an interface so that any new module would follow that. For example: <?php interface BaseAPI { public function postMessage($msg); } class ServiceAPI implements BaseAPI { public function postMessage($msg) { return $msg; } } class Service_Two_API implements BaseAPI { public function postMessage($msg) { return "can't do this: ".$msg; } } ?> I want to do this in CI. Is it possible? how should I design it?

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  • Android Camera exit rotate

    - by John
    I am first time to write a camera app. At program, I am using setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE) and android:screenOrientation="landscape" in Manifest to set the landscape screen. My problem is when use System.exit() or Intent. The screen will change to portrait automatically. But in my program, it haven't set any screen orientation again. How can I prevent this problem? Thanks!!

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  • Is is possible to stringstream this way? to convert from string to int?

    - by John
    Is it possible to stringstream like this? I am trying to read with ifstream and convert it. string things = "10 11 12 -10"; int i1; int i2; int i3; int i4; stringstream into; into << things; into >> i1; into >> i2; into >> i3; into >> i4; I expect it to be : i1 = 10 i2 = 11 i3 = 12 i4 = -10 is that correct? Can the same stringstream variable be used multiple times? When I tried, the first time was ok but everything else later on is just 0.

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  • Confusion over manual/automatic sizing of Flash Sprite Objects

    - by John
    If I have a custom class subclassing Sprite and it draws some simple objects, how does this work with respect to the Sprite.width & Sprite.height properties? It seems I can draw (for example) a rectangle of any size, bigger than the Sprite size. Similarly if I set the width/height properties, what happens to the content already drawn? As a use-case, I might have a stick-man which is drawn as a set of lines, I want to set the man's height and the rendering is scaled to this. Are there any issues with width/height being auto-calculated or am I misunderstanding what these properties actually mean?

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  • Ubuntu 9.10 Server (minimal virtual machine) partitioning

    - by John
    I am setting up a generic Ubuntu server and am trying to figure out the (best) way to partition the machine. Again, this is just a generic one: The default drive is 20GB. Some guides show: Separate /home, /usr, /var and /tmp partitions Another one suggested something like this: / 4GB /boot 512MB /tmp 1GB /home 5GB /usr 5GB /var 5GB What is the best way to accomplish this?

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  • Generating HTML Programmatically in C#, Targeting Printed Reports

    - by John Passaniti
    I've taken over a C# (2.0) code base that has the ability to print information. The code to do this is insanely tedious. Elements are drawn onto each page, with magic constants representing positioning. I imagine the programmer sitting with a ruler, designing each page by measuring and typing in the positions. And yes, one could certainly come up with some nice abstractions to make this approach rational. But I am looking at a different method. The idea is that I'll replace the current code that prints with code that generates static HTML pages, saves them to a file, and then launches the web browser on that file. The most obvious benefit is that I don't have to deal with formatting-- I can let the web browser do that for me with tags and CSS. So what I am looking for is a very lightweight set of classes that I can use to help generate HTML. I don't need anything as heavyweight as HTMLTextWriter. What I'm looking for is something to avoid fragments like this: String.Format("<tr><td>{0}</td><td>{1}</td></tr>", foo, bar); And instead take have this kind of feel: ... table(). tr(). td(foo). td(bar) Or something like that. I've seen lightweight classes like that for other languages but can't find the equivalent (or better) for C#. I can certainly write it myself, but I'm a firm believer in not reinventing wheels. Know anything like this? Know anything better than this?

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  • iPhone: InterfaceBuilder nibs disconnected from my project

    - by John Leonard
    Since upgrading to XCode 3.2, InterfaceBuilder doesn't play nice. All of my image links are broken in IB but they'll show fine when I compile. When I go to the combo box to select an image for my UIImageView, it doesn't have the image files I've added to my app. I also can't create a new .nib and associate it with a class I've written. Like images, my custom viewcontrollers aren't available to pick from. I'm going to try a reinstall but I was curious if anyone's dealt with this?

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  • doxygen with IDL/ODL

    - by John
    If you have a C++ project that has a bunch of .ODL files and the generated .h files from the ODL compiler, should doxygen be told to parse both .odl and .h, or only one or the other? In general I don't like documenting generated code but IDL is sort of a special case. In any case, it seems like the member listing of ODL files is not quite working properly in my tests, are ODL files properly parsed?

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  • tortoisesvn - Error REPORT request failed on ../../../!svn/vcc/default

    - by John
    Users attempting to check out files from a particular Subversion 1.4.x repository with Apache 2.2 on Windows 2003 have suddenly begun getting an error message in their log windows upon checkout with TortoiseSVN 1.4: Error REPORT request failed on '/[path_to_repo]/!svn/vcc/default' Error REPORT of '/[path_to_repo]/!svn/vcc/default': 200 OK (http://[server_name]) This started following an hd crash on the server and subsequent restore of about 10 subversion repositories. Only one repository is having this problem after an attempted working directory reconciliation. The repo owner reconcile their working directory with the repository by modifying/deleting the hidden .svn directories (though this was not advised). I can't find anything on the Internets that represents my situation. The restored server is exactly as the original and no other repositories on this server are throwing errors. Any ideas on 1) what this error is and 2) how to fix it?

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