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  • Good Guide For Web App Security?

    - by QAH
    Hello! I am pretty good on making web applications and I know how to transfer data to and from client/server, etc. I need some help though learning how to make the data exchanges more secure. That is the reason why I feel kind of scared to publish any web app I make. I wanted to know what are some good guides to help you understand and learn how to secure data transfer with your web application? Things like better authentication for example and making better logins. You can post any suggestion, but just for your information, I mainly code my web apps with Javascript and PHP. Also, I transfer my data using JSON or XML. Thanks a lot

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  • External config file to be used by multiple DLLs.

    - by vikp
    Hi, I have multiple DLLs that are used to read/write data into my database. There is a presentation layer DLL and a data access layer DLL. I want these DLLs to share a set of the connection strings. My idea is to store the connection string in a seperate DLL in the external configuration file. I'm not sure whether it's a good idea and whether I can reference that external DLL in both presentation and data access layers. The other question is whether I should write a helper class to read the data from the external config file or whether I should be using built in .Net methods? Thank you

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  • When should you NOT use the asterisk (*) when declaring a variable in Objective C

    - by Jason
    I have just started learning objective c and the asterisk is giving me some trouble. As I look through sample code, sometime it is used when declaring a variable and sometimes it is not. What are the "rules" for when it should be used. I thought it had something to do with the data type of the variable. (asterisk needed for object data types, not needed for simple data types like int) However, I have seen object data types such as CGPoint declared without the asterisk as well? Is there a definitive answer or does it have to do with how and what you use the variable for?

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  • UITableView resizing rows problem

    - by Vin
    Hi All, Hope to get solution to this problem. I have been stuck on it since a long time now. I have a a tableView which has custom labels drawn upon the cell using CGRect. I receive the data from a web service in arrays. Initially i display a line of data on the cells. When the user selects a cell, I call reloadsRowAtIndexPath to increase the height of selected row. In the process, cellForRowAtIndexPath gets called again. I keep track of this by a flag, and when cellForRowAtIndexPath gets called again, I display the two more lines of data from arrays, on the cell. What i am getting is all overlapping data on one other. I tried to remove already placed labels in didSelectRowAtIndexPath, but to no avail. Please help me on this Thanks in advance.

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  • make an http post from server using user credentials - integrated security

    - by opensas
    I'm trying to make a post, from an asp classic server side page, using the user credentials... I'm using msxml2.ServerXMLHTTP to programatically make the post I've tried with several configurations in the IIS 5.1 site, but there's no way I can make IIS run with a specified account... I made a little asp page that runs whoami to verify what account the iis process i using... with IIS 5.1, using integrated security the process uses: my_machine\IWAM_my_machine I disable integrated security, and leave a domain account as anonymous access, and I get the same (¿?) to test the user I do the following private function whoami() dim shell, cmd set shell = createObject("wscript.shell") set cmd = shell.exec( server.mapPath( "whoami.exe" ) ) whoami = cmd.stdOut.readAll() set shell = nothing: set cmd = nothing end function is it because I'm issuing a shell command? I'd like to make http post calls, to another site that works with integrated security... So I need some way to pass the credentials, or at least to run with a specified account, and then configure the remote site to thrust that account... I thought that just setting the site to work with integrated security would be enough... How can I achieve such a thing? ps: with IIS6,happens the same but if I change the pool canfiguration I get the following info from whoami NT AUTHORITY\NETWORK SERVICE NT AUTHORITY\LOCAL SERVICE NT AUTHORITY\SYSTEM if I set a domain account, I get a "service unavailable" message... edit: found this http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/275269ee-1b9f-4869-8d72-c9006b5bd659.mspx?mfr=true it says what I supossed, "If an authenticated user makes a request, the thread token is based on the authenticated account of the user", but somehow I doesn't seem to work like that... what could I possibly be missing? edit: well the whoami thing is obviously fooling me, I tried with the following function private function whoami_db( serverName, dbName ) dim conn, data set conn = server.createObject("adodb.connection") conn.open "Provider=SQLOLEDB.1;Integrated Security=SSPI;" & _ "Initial Catalog=" & dbName & ";Data Source=" & serverName set data = conn.execute( "select suser_sname() as user_name" ) whoami_db = data("user_name") data.close: conn.close set data = nothing: set conn = nothing end function and everything seemed to be working fine... but how can I make msxml2.ServerXMLHTTP work with the user credentials???

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  • Secure ajax form POST

    - by user194630
    I was wondering how to develop a secure form post through AJAX. For example, i have: My HTML form. My JavaScript handling the submit. The submit url is "post_data.php" The posted data is: id=8&name=Denis The PHP verifies if variables id and name are POSTED and their data type. If this is ok it proceed to do some stuff on a database. My question is, how can i prevent someone from creating his own html form, outside my web site, or whatever, and posting false data to my PHP script? Imagine that data realy exists on my database, this could be bad. Thanks

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  • Handling empty UITableView in UITableViewController

    - by Travis
    I have a UITableViewController that is populated with some data. If the data comes back empty, obviously the table is empty. What is the appropriate method to use to handle this case and put up something like a UILabel with "No Data Available". I have been using - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section but it's proven a bit cumbersome and I'm not longer confident it's the best place to do this.

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  • How do I use an ADO.NET managed provider in Excel?

    - by Eli
    I have an ADO.NET Managed Data Provider that is registered in machine.config in DbProviderFactory - It is available for use from, say, Analysis Services, so I know it is correctly registered. However, I need to be able to query the managed provider from Excel, but the managed provider doesn't appear as a choice from Data Link Properties | All Ole Db Providers. How do I get an ADO.NET Managed Data Provider to appear there, or is there another technique I need to use? Thanks in advance, Eli.

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  • Converting NSMutableData to NSString Problem

    - by Sheehan Alam
    initWithData does not convert my data object into a string properly. When I check the length of the data object, it has a value. NSMutableData* receivedData =[[NSMutableData data] retain]; NSString* json_string = [[NSString alloc] initWithData:receivedData encoding:NSUTF8StringEncoding]; Am I doing something wrong creating the string?

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  • SQL Server CLR Integration to acheive Encryption/Decryption

    - by Aakash
    I have a requirement to store the data in encrypted form in database tables. I want to do it at database level but the problems I am facing: ( a) Data Type of the field should be Varbinary. ( b) Encryption is not supported by Workgroup edition ( c) Is it possible to encrypt Numeric Fields? I want to access the encrypted data in tables to fetch in views and stored procedure for some processing but due to above problems I am not able to. Here is my Environment: Development Platform - ASP.Net,.Net Framework 3.5,Visual studio 2008 Server Operating System - Windows Server 2008 Database - SQL Server 2008 Work group edition I was also thinking to adopt a different approach to resolve this issue (yet to test it's feasibility). I was just wondering if I could create a CLR function (which could take parameters to encrypt and decrypt data using Cryptography types provided in .Net framework) and use the CLR integration feature of SQL Server and call that function from stored procedure and views. I am not sure if I am thinking in right direction? Any advice on this as well please.

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  • How to “unbind” .result on Jquery Autocomplete?

    - by Cesar
    I have this code: $("#xyz").unautocomplete().autocomplete(dataVar, { minChars: 0, width: 400, matchContains: true, highlightItem: true, formatItem: formatItem, formatResult: formatResult }) .result(findValueCallback).next().click(function() { $(this).prev().search(); }); I call this code many times and the first call works correctly, but after he calls findValueCallback many times, not once more. The unautocomplete don't clear .result What I have to do for call findValueCallback once? Sample Code: var niveis01 = []; var niveis02 = []; var niveis03 = []; $(document).ready(function(){ carregaDadosNivel1(); }); function carregaDadosNivel1() { $.ajax({ url: "http://.....", cache: true, type: "POST", dataType:"json", success: function(data){ ... niveis01 = data; habilitaComboNivel1(); ... }, error: function(xhr, ajaxOptions, thrownError){ ... } }); } function habilitaComboNivel1() { function findValueCallback1(event, data01, formatted) { ... carregaDadosNivel2(); ... } $("#nivel01").unautocomplete().autocomplete(niveis01, { minChars: 0, width: 400, matchContains: true, highlightItem: true, formatItem: formatItem, formatResult: formatResult }).result(findValueCallback1).next().click(function() { $(this).prev().search(); }); } function carregaDadosNivel2() { $.ajax({ url: "http://.....", cache: true, type: "POST", dataType:"json", success: function(data){ ... niveis02 = data; habilitaComboNivel2(); ... }, error: function(xhr, ajaxOptions, thrownError){ ... } }); } function habilitaComboNivel2() { function findValueCallback2(event, data02, formatted) { ... carregaDadosNivel3(); ... } $("#nivel02").unautocomplete().autocomplete(niveis02, { minChars: 0, width: 400, matchContains: true, highlightItem: true, formatItem: formatItem, formatResult: formatResult }).result(findValueCallback2).next().click(function() { $(this).prev().search(); }); } function carregaDadosNivel3() { $.ajax({ url: ""http://.....", cache: true, type: "POST", dataType:"json", success: function(data){ ... niveis03 = data; habilitaComboNivel3(); ... }, error: function(xhr, ajaxOptions, thrownError){ ... } }); } function habilitaComboNivel3() { function findValueCallback3(event, data03, formatted) { ... } $("#nivel03").unautocomplete().autocomplete(niveis03, { minChars: 0, width: 400, matchContains: true, highlightItem: true, formatItem: formatItem, formatResult: formatResult }).result(findValueCallback3).next().click(function() { $(this).prev().search(); }); }

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  • SqlException: User does not have permission to perform this action.

    - by Oskar Kjellin
    I have been using my website (ASP.NET MVC) in visual studio but now I want to host it on my server. I published from visual studio onto the network share to be used. The server is running Windows Home Server, IIS 6 and SQL Server 2008 R2 (express). In Microsoft SQL Server Management Studio, I've attached the database and made sure that the user IUSR_SERVER is owner of the db. I also made sure that the user Network Service has access. The Web Site is configured in IIS to run anonymously as IUSR_SERVER. I have granted write and read access to IUSR_SERVER as well as Network Service and made sure that nothing is read only. The web.config has this connectionstring: <connectionStrings> <remove name="ApplicationServices" /> <add name="ApplicationServices" connectionString="Data Source=.\SQLExpress;Integrated Security=True;Initial Catalog=MyDatebase" providerName="System.Data.SqlClient" /> </connectionStrings> However, I cannot browse my web site. I only get this error: Server Error in '/' Application. User does not have permission to perform this action. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: User does not have permission to perform this action. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [SqlException (0x80131904): User does not have permission to perform this action.] System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +4846887 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +194 Feels like I've tried everything. Would be very grateful for your aid in this.

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  • Combine master-detail databinding

    - by clawson
    I have created data sources from my objects in my project, some of which have other objects as members. When I want to bind a some objects to a data grid I would like to display some of the values from the member objects in the data grid as well but the examples I have come across seem to use an entire other datagrid or controls to display these member object values. How can I combine these values into one data grid? (Preferably without creating a wrapping class) Can I achieve this with LINQ somehow? Your help is greatly appreciated. Thanks P.S. C# or VB examples will do.

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  • I'm a java developer struggling with jQuery

    - by Mustafa
    Guys i am very new to jQuery.I have started using the auto complete feature.What i want is while i click on an item provided by the auto complete the page should submit to another page.I am using : $().ready(function() { $("#name").autocomplete("contacts.jsp"); $("#name").result(function(event, data, formatted) { if (data) $(this).parent().next().find("input").val(data[1]); }); $("#name").setOptions({ mustMatch : false, max: 8, onClick:selectItem, autoFill: false }); }); And this gives me good data like :Aditi XaveirAsif Garhietc for 'A'Now what i want is on clicking Aditi Xaveir, the page should submit to AditiXaveir's profile page.How do i do that?

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  • PerformancePoint dashboard permissions problem in MOSS

    - by Nathan DeWitt
    I have a PerformancePoint dashboard running in MOSS 2007 portal. The dashboard consists of one SSRS 2005 report, running in SharePoint Integrated mode. NT Authority\Authenticated Users have read permissions to the report library containing the SSRS report, the dashboard, and the report library containing the dashboard. Users that attempt to access the dashboard receive the following error message: The permissions granted to user 'DOMAIN\firstname.lastname' are insufficient for performing this operation. (rsAccessDenied) Users that then click on the direct link to the report in MOSS will see the report with no problem. Subsequent visits to the dashboard show the report with no problem. The report is using a data source that is located one folder up from the report location. The report has been updated to point to the correct shared data source after deployment. Both the report and the data source have been published. The data source is using stored credentials, with a domain service account that has been set to Use as Windows credentials. This service account is serving other reports in other areas with no problem. Edit: Ok, I've gotten a lot more information on this problem. The request is never actually being made to the data source. The user comes in to the dashboard and requests a report for the first time using their kerberos token identifying themselves. The report looks in the Report Server database and finds that they are not listed in the users table and generates this rsAccessDenied error. Once they view the report directly their name is in this table and they never have the problem again. Unfortunately, removing the user from the Users table in the RS database doesn't actually cause this error to happen again. Everything I've read says that when you run a Report Server in MOSS integrated mode all your permissions are handled at the MOSS report library level, and all Auth users have permissions to the report library, as stated earlier. Any ideas?

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  • How to keep my functions (objects/methods) 'lean and mean'

    - by Michel
    Hi, in all (Agile) articles i read about this: keep your code and functions small and easy to test. How should i do this with the 'controller' or 'coordinator' class? In my situation, i have to import data. In the end i have one object who coordinates this, and i was wondering if there is a way of keeping the coordinator lean(er) and mean(er). My coordinator now does the followling (pseudocode) //Write to the log that the import has started Log.StartImport() //Get the data in Excel sheet format result = new Downloader().GetExcelFile() //Log this step Log.LogStep(result ) //convert the data to intern objects result = new Converter().Convertdata(result); //Log this step Log.LogStep(result ) //write the data result = Repository.SaveData(result); //Log this step Log.LogStep(result ) Imho, this is one of those 'know all' classes or at least one being 'not lean and mean'? Or, am i taking this lean and mean thing to far and is it impossible to program an import without some kind of 'fat' importer/coordinator? Michel

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  • Performance benefits of upgrading Richfaces to newer version

    - by peteDog
    I have a client that's running an application based on JBoss 4.0.5, Seam 1.2 and RichFaces 3.0.1. Their system is having performance problems due to the fact that a lot of data is coming back from the server to be displayed on screen and it seems like the rendering of that data is taking forever. The data brought back is displayed in a tabbed interface, but the tabs aren't currently being loaded individually, but all at once. I'm trying to build up a case to present to the client on the benefits of upgrading to never version of RichFaces, which, as I understand it, has added a great number of features related to tabbed panels and being able to use ajax to page the data and load the chunks you actually need to display at the moment, and not the rest that's in other tabs. The move to a newer version of RichFaces will also result in never versions of Jboss and Seam, as the current production build of RichFaces 3.2.1 requires JSF 1.2. IF anyone has some suggestions or experience on performance of current versions RichFaces, paging, etc, I would really appreciate some feedback.

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  • Refresh a UITableView after loading

    - by Alavoil
    I am trying to load a table view from a cache very quickly and have the cached data in the table view appear. Then I want download new data, and then reload the table. Right now I am downloading the new data on viewDidAppear, but the view still refreshes before it displays. Any idea how I can do this?

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  • ggplot2 heatmap : how to preserve the label order ?

    - by Tg
    I'm trying to plot heatmap in ggplot2 using csv data following casbon's solution in http://biostar.stackexchange.com/questions/921/how-to-draw-a-csv-data-file-as-a-heatmap-using-numpy-and-matplotlib the problem is x-label try to re-sort itself. For example, if I swap label COG0002 and COG0001 in that example data, the x-label still come out in sort order (cog0001, cog0002, cog0003.... cog0008). Is there anyway to prevent this ? I want to it to be ordered as in csv file thanks pp

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  • Div positioning on a canvas with arrows bindings

    - by ideotop
    I'm searching for a little piece of javascript that can attach to a div (in data-x data-y attributes for example) the x,y coordinates of a draggable div. And then be able to draw arrows between them (using a data-targetid attribute?). If the solution can look like a simple version of graphview, jsPlumb or vizster but without the complicated library, and only in javascript/html

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  • jQuery: Traversing AJAX response in Chrome/Safari

    - by jitzo
    I'm trying to traverse an AJAX response, which contains a remote web page (an HTML output). My goal is to iterate through the 'script', 'link', and 'title' elements of the remote page - load them if necessary, and embed its contents to the current page. Its working great in FF/IE, but for some reason - Chrome & Safari behaves differently: When I run a .each() loop on the response, Chrome/Safari seems to omit everything that is under the section of the page. Here's my current code: $.ajax({ url: 'remoteFile.php', cache: false, dataFilter: function(data) { console.log(data); /* The output seems to contain the entire response, including the <head> section - on all browsers, including Chrome/Safari */ $(data).filter("link, script, title").each(function(i) { console.log($(this)); /* IE/FF outputs all of the link/script/title elements, Chrome will output only those that are not in the <head> section */ }); console.log($(data)); /* This also outputs the incomplete structure on Chrome/Safari */ return data; }, success: function(response) {} }); I've been struggling with this problem for quite a while now, i've found some other similar cases on google searches, but no real solution. This happens on both jQuery 1.4.2, and jQuery 1.3.2. I really don't want to parse the response with .indexOf() and .substring() - it seems to me that it will be an overkill for the client. Many thanks in advance!

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  • cancel stream request from WCF server to client

    - by ArsenMkrt
    Hi, I posted about stream request here [wcf-chunk-data-with-stream]:http://stackoverflow.com/questions/853448/wcf-chunk-data-with-stream I solved that task but now when i close request in client part server continue to send data. is it possible to cancel stream request from WCF server to client?

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  • Beginner problems with references to arrays in python 3.1.1

    - by Protean
    As part of the last assignment in a beginner python programing class, I have been assigned a traveling sales man problem. I settled on a recursive function to find each permutation and the sum of the distances between the destinations, however, I am have a lot of problems with references. Arrays in different instances of the Permute and Main functions of TSP seem to be pointing to the same reference. from math import sqrt class TSP: def __init__(self): self.CartisianCoordinates = [['A',[1,1]], ['B',[2,2]], ['C',[2,1]], ['D',[1,2]], ['E',[3,3]]] self.Array = [] self.Max = 0 self.StoredList = ['',0] def Distance(self, i1, i2): x1 = self.CartisianCoordinates[i1][1][0] y1 = self.CartisianCoordinates[i1][1][1] x2 = self.CartisianCoordinates[i2][1][0] y2 = self.CartisianCoordinates[i2][1][1] return sqrt(pow((x2 - x1), 2) + pow((y2 - y1), 2)) def Evaluate(self): temparray = [] Data = [] for i in range(len(self.CartisianCoordinates)): Data.append([]) for i1 in range(len(self.CartisianCoordinates)): for i2 in range(len(self.CartisianCoordinates)): if i1 != i2: temparray.append(self.Distance(i1, i2)) else: temparray.append('X') Data[i1] = temparray temparray = [] self.Array = Data self.Max = len(Data) def Permute(self,varray,index,vcarry,mcarry): #Problem Class array = varray[:] carry = vcarry[:] for i in range(self.Max): print ('ARRAY:', array) print (index,i,carry,array[index][i]) if array[index][i] != 'X': carry[0] += self.CartisianCoordinates[i][0] carry[1] += array[index][i] if len(carry) != self.Max: temparray = array[:] for j in range(self.Max):temparray[j][i] = 'X' index = i mcarry += self.Permute(temparray,index,carry,mcarry) else: return mcarry print ('pass',mcarry) return mcarry def Main(self): out = [] self.Evaluate() for i in range(self.Max): array = self.Array[:] #array appears to maintain the same reference after each copy, resulting in an incorrect array being passed to Permute after the first iteration. print (self.Array[:]) for j in range(self.Max):array[j][i] = 'X' print('I:', i, array) out.append(self.Permute(array,i,[str(self.CartisianCoordinates[i][0]),0],[])) return out SalesPerson = TSP() print(SalesPerson.Main()) It would be greatly appreciated if you could provide me with help in solving the reference problems I am having. Thank you.

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  • Sync Vs. Async Sockets Performance in .NET

    - by Michael Covelli
    Everything that I read about sockets in .NET says that the asynchronous pattern gives better performance (especially with the new SocketAsyncEventArgs which saves on the allocation). I think this makes sense if we're talking about a server with many client connections where its not possible to allocate one thread per connection. Then I can see the advantage of using the ThreadPool threads and getting async callbacks on them. But in my app, I'm the client and I just need to listen to one server sending market tick data over one tcp connection. Right now, I create a single thread, set the priority to Highest, and call Socket.Receive() with it. My thread blocks on this call and wakes up once new data arrives. If I were to switch this to an async pattern so that I get a callback when there's new data, I see two issues The threadpool threads will have default priority so it seems they will be strictly worse than my own thread which has Highest priority. I'll still have to send everything through a single thread at some point. Say that I get N callbacks at almost the same time on N different threadpool threads notifying me that there's new data. The N byte arrays that they deliver can't be processed on the threadpool threads because there's no guarantee that they represent N unique market data messages because TCP is stream based. I'll have to lock and put the bytes into an array anyway and signal some other thread that can process what's in the array. So I'm not sure what having N threadpool threads is buying me. Am I thinking about this wrong? Is there a reason to use the Async patter in my specific case of one client connected to one server?

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  • Google Analytics API Authentication Speedup

    - by Paulo
    I'm using a Google Analytics API Class in PHP made by Doug Tan to retrieve Analytics data from a specific profile. Check the url here: http://code.google.com/intl/nl/apis/analytics/docs/gdata/gdataArticlesCode.html When you create a new instance of the class you can add the profile id, your google account + password, a daterange and whatever dimensions and metrics you want to pick up from analytics. For example i want to see how many people visited my website from different country's in 2009. //make a new instance from the class $ga = new GoogleAnalytics($email,$password); //website profile example id $ga->setProfile('ga:4329539'); //date range $ga->setDateRange('2010-02-01','2010-03-08'); //array to receive data from metrics and dimensions $array = $ga->getReport( array('dimensions'=>('ga:country'), 'metrics'=>('ga:visits'), 'sort'=>'-ga:visits' ) ); Now you know how this API class works, i'd like to adress my problem. Speed. It takes alot of time to retrieve multiple types of data from the analytics database, especially if you're building different arrays with different metrics/dimensions. How can i speed up this process? Is it possible to store all the possible data in a cache so i am able to retrieve the data without loading it over and over again?

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