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• Top techniques to avoid 'data scraping' from a website database

  - by Addsy

  I am setting up a site using PHP and MySQL that is essentially just a web front-end to an existing database. Understandably my client is very keen to prevent anyone from being able to make a copy of the data in the database yet at the same time wants everything publicly available and even a "view all" link to display every record in the db. Whilst I have put everything in place to prevent attacks such as SQL injection attacks, there is nothing to prevent anyone from viewing all the records as html and running some sort of script to parse this data back into another database. Even if I was to remove the "view all" link, someone could still, in theory, use an automated process to go through each record one by one and compile these into a new database, essentially pinching all the information. Does anyone have any good tactics for preventing or even just dettering this that they could share. Thanks

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• how to automate / script processes like signups .

  - by silverkid

  which is the best tool for this - Automation of signup process to a website , e.g an email signup The tool should be able to take data from an external data file like an excel of csv file this data file would contain data such as first name , last name , username, password etc. basic data required during an email signup . I am imagining the data file to contain of each field in a seperate column and each row to contain data for different registration / user. At the places where manual intervention is required like image verification etc. the tool should be able to pause the script until manual bit is done then continue with the script. What is the best way to do this - an automation tool , or any scripting language - please suggest .

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• C# SqlDataAdapter not populating DataSet

  - by Wesley

  I have searched the net and searched the net only to not quite find the probably I am running into. I am currently having an issue getting a SqlDataAdapter to populate a DataSet. I am running Visual Studio 2008 and the query is being sent to a local instance of SqlServer 2008. If I run the query itself in SqlServer, I do get information. Code is as follows: string theQuery = "select Password from Employees where employee_ID = '@EmplID'"; SqlDataAdapter theDataAdapter = new SqlDataAdapter(); theDataAdapter.SelectCommand = new SqlCommand(theQuery, conn); theDataAdapter.SelectCommand.Parameters.Add("@EmplID", SqlDbType.VarChar).Value = "EmployeeName"; theDataAdapter.Fill(theSet); The code to read the dataset: foreach (DataRow theRow in theSet.Tables[0].Rows) { //process row info } If there is any more info I can supply please let me know.

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• Design Patterns: What's the antithesis of Front Controller?

  - by Brian Lacy

  I'm familiar with the Front Controller pattern, in which all events/requests are processed through a single centralized controller. But what would you call it when you wish to keep the various parts of an application separate at the presentation layer as well? My first thought was "Facade" but it turns out that's something entirely different. In my particular case, I'm converting an application from a sprawling procedural mess to a clean MVC architecture, but it's a long-term process -- we need to keep things separated as much as possible to facilitate a slow integration with the rest of the system. Our application is web-based, built in PHP, so for instance, we have an "index.php" and an IndexController, a "account.php" and an AccountController, a "dashboard.php" and DashboardController, and so on.

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• eclipse servlet problem

  - by raxvan

  Hello, i have created a dynamic web page for a servlet. When i try run the project i get the following error: http starus 500 javax.servlet.ServletException: Error instantiating servlet class ch.uzh.ifi.attempto.aceeditor.MyMainServlet org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:873) org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) java.lang.Thread.run(Unknown Source) how can i fix this?

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• Real-time aggregation of files from multiple machines to one

  - by dmitry-kay

  I need a tool which gets a list of machine names and file wildcards. Then it connects to all these machines (SSH) and begins to monitor changes (appendings to the end) in each file matched by wildcards. New lines in each such file are saved to the local machine to the file with the same name. (This is a task of real-time log files collecting.) I could use ssh + tail -f, of course, but it is not very robust: if a monitoring process dies and then restarts, some data from remote files may be lost (because tail -f does not save the position at which it is finished before). I may write this tool manually, but before - I'd like to know if such tool already exists or not.

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• .NET Assembly Diff / Compare Tool - What's available?

  - by STW

  I'd like to be able to do a code-level diff between two assemblies; the Diff plug-in for Reflector is the closest thing I've found so far, but to compare the entire assembly is a manual process requiring me to drill-down into every namespace/class/method. The other tools I've found so far appear to be limited to API-level (namespaces, classes, methods) differences--which won't cut it for what I'm looking for. Does anyone know of such a tool? My requirements (from highest to lowest) are: Be able to analyze / reflect the code content of two versions of the same assembly and report the differences Accept a folder or group of assemblies as input; quickly compare them (similar to WinMerge's folder diff's) Quick ability to determine if two assemblies are equivalent at the code level (not just the API's) Allow easy drill-down to view the differences Exporting of reports regarding the differences (Personally I like WinMerge for text diffs, so an application with a similar interface would be great)

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• See if any application has a DLL from the GAC loaded

  - by rwmnau

  I'm trying to deploy new copies of my DLL to the GAC on remote servers, but I need to identify if any processes currently running have a loaded copy of the DLL I'm replacing - I'd like to restart them, or at least tell the user. For example, Biztalk seems to load the DLLs it needs the first time they're used, and then replacing them keeps the old copy in memory until the Host Instances are restarted - something I could easily do as part of my deployment. Is there a way to tell using .NET which processes have loaded a particular DLL from the GAC? UPDATE: Some further investigation shows that both Process Explorer has this functionality, and another Sysinternals tool, ListDLL, does exactly what I want to be able to do. I'd like to know how they do it, since I'd love to replicate this functionality in my application without having to include and screen-scrape ListDLL (if that's even allowed inside the license).

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• Any way to separate unit tests from integration tests in VS2008?

  - by AngryHacker

  I have a project full of tests, unit and integration alike. Integration tests require that a pretty large database be present, so it's difficult to make it a part of the build process simply because of the time that it takes to re-initialize the database. Is there a way to somehow separate unit tests from integration tests and have the build server just run the unit tests? I see that there is an Ordered Unit test in VS2008, which allows you to pick and choose tests, but I can't make it just execute alone, without all the others. Is there a trick that I am missing? Or perhaps I could adorn the unit tests with an attribute? What are some of the approaches people are using? P.S. I know I could use mocking for integration tests (just to make them go faster) but then it wouldn't be a true integration test.

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• Different Versions of an application in same java application server

  - by Cem

  Hi, We are utilizing citrix netscalar with more than 20 glassfish java application servers. Unfortunately we have to remove previous application before deploying a new version of it since we have same context for these two different application. This error-prone process leads some problems due to lack of attention in builds or other problems. In an urgent case, we simply want to redirect to all traffic to previous application. What is the best practice to run different version of an application in a substantial number of servers in same time? Thanks

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• Is there anything exciting in perl 5.11 (to become perl 5.12)?

  - by Ether

  Perl 5.11 is now released! Is there anything really exciting in this release, or is it mostly maintenance patches? (From what I've read so far, it appears to be a rollup of improvements we have already seen in prior releases.) the CHANGES file Jesse Vincent's announcement chromatic's blog post 5.11 is the development release of what will become 5.12. The release process itself is changing to a monthly release model. UPDATE: Perl 5.12 is now released (April 12, 2010). the CHANGES file Jesse Vincent's announcement

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• Monolog conversations in SQL Service Broker 2008

  - by hemil

  Hi, I have a scenario in which I need to process(in SQL Server) messages being delivered as .xml files in a folder in real time. I started investigating SQL Service Broker for my queuing needs. Basically, I want the Service Broker to pick up my .xml files and place them in a queue as they arrive in the folder. But, SQL Service Broker does not support "Monolog" conversations, at least not in the current version. It supports only a dialog between an initiator and a target service. I can use MSMQ but then I will have two things to maintain - the .Net Code for file processing in MSMQ and the SQL Server T-SQL stored procs. What options do I have left? Thanks.

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• Create a SOCKS Proxy that does nothing special

  - by rwired

  I am trying to create a SOCKS proxy in C++ that runs as a background process on localhost. If the user's browser is configured to use the proxy, I want all HTTP requests to be passed along through the normal TCP/IP stack. i.e. The browser will behave exactly as it normally would. Eventually I will add another layer which will check to see if the requested resource matches certain criteria, and if so will handle the request differently. But for now I'm just trying to solve the basic problem... how to create a SOCKS proxy that doesn't change anything?

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• Kill a Perl system call after a timeout

  - by Fergal

  I've got a Perl script I'm using for running a file processing tool which is started using backticks. The problem is that occasionally the tool hangs and It needs to be killed in order for the rest of the files to be processed. Whats the best way best way to apply a timeout after which the parent script will kill the hung process? At the moment I'm using: foreach $file (@FILES) { $runResult = `mytool $file >> $file.log`; } But when mytool hangs after n seconds I'd like to be able to kill it and continue to the next file.

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• RenderAction in an HtmlHelperExtension Method?

  - by TimLeung

  I am trying to call the RenderAction Extension Method within my own Html Helper: System.Web.Mvc.Html.ChildActionExtensions.RenderAction(helper, "account", "login"); this is so that along with some additional logic, I would like all html helpers to use a common method name structure when calling it on the view: <%= Html.CompanyName().RenderAccount() %> but the problem I am having is that, asp.net will complain about not finding the actual route it needs to process. It does not take in the parameters of "controller" to be used as the action and "login" to be used as the action. It seems to only reference the current route. Any ideas how I can package up the RenderAction?

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• Unreachable breakpoint at execut(able/ing) code

  - by shadeMe

  I've got two DLLs, one in written in native C++ and the other in C++/CLI. The former is injected into a process, and at a later point in time, loads the latter. While debugging, I noticed that the native DLL's breakpoints were functioning correctly while the other's weren't, even though its code was being executed. The breakpoints showed this message: This breakpoint will not be hit. No executable code associated with this line. Possible causes include: preprocessor directives or compiler/linker optimizations. The modules window tells me that the plugin's symbols are loaded. I'm running with its DEBUG build. Any ideas on why this is so and perhaps a fix ?

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• Identity column SQL Server 2005 inserting same value twice

  - by DannykPowell

  I have a stored procedure that inserts into a table (where there is an identity column that is not the primary key- the PK is inserted initially using the date/time to generate a unique value). We then use SCOPEIDENTITY() to get the value inserted, then there is some logic to generate the primary key field value based on this value, which is then updated back to the table. In some situations the stored procedure is called simultaneously by more than one process, resulting in "Violation of PRIMARY KEY constraint..." errors. This would seem to indicate that the identity column is allowing the same number to be inserted for more than one record. First question- how is this possible? Second question- how to stop it...there's no error handling currently so I'm going to add some try/ catch logic- but would like to understand the problem fully to deal with properly

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• ado.net slow updating large tables

  - by brett

  The problem: 100,000+ name & address records in an access table (2003). Need to iterate through the table & update detail with the output from a 3rd party dll. I currently use ado, and it works at an acceptable speed (less than 5 minutes on a network share). We will soon need to update to access 2007 and its 'non jet' accdb format to maintain compatability with clients. I've tried using ado.net datsets, but updating the records takes hours! We process 5-10 of these tables per day - so this cannot be a solution. Any ideas on the fastest way to update individual records using ado.net? Surely we didn't take such a hugh backward step with ado.net? Any help would be appreciated.

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• Import a Collada model doesn't align to pixels

  - by Dan Friedman

  Assume I have a model that is simply a cube. (It is more complicated than a cube, but for the purposes of this discussion, we will simplify.) So when I am in Sketchup, the cube is Xmm by Xmm by Xmm, where X is an integer. I then export the a Collada file and subsequently load that into threejs. Now if I look at the geometry bounding box, the values are floats, not integers. So now assume I am putting cubes next to each other with a small space in between say 1 pixel. Because screens can't draw half pixels, sometimes I see one pixel and sometimes I see two, which causes a lack of uniformity. I think I can resolve this satisfactorily if I can somehow get the imported model to have integer dimensions. I have full access to all parts of the model starting with Sketchup, so any point in the process is fair game. Is it possible? Thanks.

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• C# - How can i open a second winform asynchronously but still behave as a child to the parent form?

  - by Gary Willoughby

  I am creating an application and i would like to implement a progress window that appears when a lengthy process is taking place. I've created a standard windows form project to which i've created my app using the default form. I've also created a new form to use as a progress window. The problem arises when i open the progress window (in a function) using: ProgressWindow.ShowDialog(); When this command is encountered, the focus is on the progress window and i assume it's now the window who's mainloop is being processed for events. The downside is it blocks the execution of my lengthy operation in the main form. If i open the progress window using: ProgressWindow.Show(); Then the window opens correctly and now doesn't block the execution of the main form but it doesn't act as a child (modal) window should, i.e. allows the main form to be selected, is not centered on the parent, etc.. Any ideas how i can open a new window but continue processing in the main form?

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• How do I watch a file for changes using Python?

  - by Jon Cage

  I have a log file being written by another process which I want to watch for changes. Each time a change occurrs I'd like to read the new data in to do some processing on it. What's the best way to do this? I was hoping there'd be some sort of hook from the PyWin32 library. I've found the win32file.FindNextChangeNotification function but have no idea how to ask it to watch a specific file. If anyone's done anything like this I'd be really grateful to hear how... [Edit] I should have mentioned that I was after a solution that doesn't require polling. [Edit] Curses! It seems this doesn't work over a mapped network drive. I'm guessing windows doesn't 'hear' any updates to the file the way it does on a local disk.

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• jQuery fadeIn IE Png Issue when loading from external

  - by Adam Stone

  I am loading data from external html files within my domain into a div on my webpage using a load content method in jQuery. I take the div out of the new page whilst hiding the div in the current page by fading this out and fading the new one in. There is a png image in both of these divs and it is creating horrid black blobs in IE, works fine in other browsers but due to IEs inability to process multiple filters its making a mess. I tried using the unit png fix to no avail, does anyone have any fixes or ideas to help keep my pngs looking nice during this transition? i46.tinypic.com/t9dtvr.jpg this is a screenshot of the problem, cheers also discovered that the png that is on the page originaly (before loading anything new) fades in and out perfectly using the unit png fix but stuff loading in and then back out from external files doesnt. Ive added the fix to those pages too but that doesnt work either.

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• How to get information from objdump

  - by Summer_More_More_Tea

  I encounter a problem when reading information dumped out from an executable file in linux. The information is as follows: 804a0ea: 04 08 add $0x8, %al ... 804a0f4: a6 cmpsb %es:(%edi),%ds:(%esi) I have two questions: what does the address 804a0ea and 804a0f4 mean? the virtual address in the process's address space? what does the ... mean? how can I get instruction at address 804a0f0? Thanks in advance.

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• Plupload - how to stop uploads individualy

  - by Manny Calavera

  Hello. I'm using plupload script with PHP and I am uploading using HTML5. I would like to stop uploads separately, from the list, not the whole process. Is this possible with plupload ? I think it would be useful to stop individual files. Thanks. EDIT: Let's just say that a user tries to upload 2 files and they are added to queue. After that, he clicks the upload button and the upload starts. At some point during the upload he realize that he doesn't really want to upload the second file, he needs to stop the 2nd upload and the 1st upload should continue. I can send an uploader.start(); on the plupload but it will stop all upload processes...and I need to stop just one. Thanks.

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• Any MVVM frameworks work well with NavigationWindows?

  - by Will

  I'd like to "throw away" the current version of a WPF application and move version 2 to a stable MVVM framework. The main concern I'm having is that I don't see much talk about MVVM frameworks and navigation (i.e., NavigationWindows and Frames). My current app relies heavily on Pages to present views to the user. I would prefer to keep it this way. I'd rather not change everything to UserControls and rely on DataTemplates to switch out the view I need to present. Are there any MVVM frameworks that: Work well with NavigationWindows and Pages Provide ViewModels adequate access to the navigation process Provide the ability to change navigation in response to security-related events (e.g., redirect to login Page after logout)

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