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  • Rewriting Live TCP/IP (Layer 4) (i.e. Socket Layer) Streams

    - by user213060
    I have a simple problem which I'm sure someone here has done before... I want to rewrite Layer 4 TCP/IP streams (Not lower layer individual packets or frames.) Ettercap's etterfilter command lets you perform simple live replacements of Layer 4 TCP/IP streams based on fixed strings or regexes. Example ettercap scripting code: if (ip.proto == TCP && tcp.dst == 80) { if (search(DATA.data, "gzip")) { replace("gzip", " "); msg("whited out gzip\n"); } } if (ip.proto == TCP && tcp.dst == 80) { if (search(DATA.data, "deflate")) { replace("deflate", " "); msg("whited out deflate\n"); } } http://ettercap.sourceforge.net/forum/viewtopic.php?t=2833 I would like to rewrite streams based on my own filter program instead of just simple string replacements. Anyone have an idea of how to do this? Is there anything other than Ettercap that can do live replacement like this, maybe as a plugin to a VPN software or something? I would like to have a configuration similar to ettercap's silent bridged sniffing configuration between two Ethernet interfaces. This way I can silently filter traffic coming from either direction with no NATing problems. Note that my filter is an application that acts as a pipe filter, similar to the design of unix command-line filters: >[eth0] <----------> [my filter] <----------> [eth1]< What I am already aware of, but are not suitable: Tun/Tap - Works at the lower packet layer, I need to work with the higher layer streams. Ettercap - I can't find any way to do replacements other than the restricted capabilities in the example above. Hooking into some VPN software? - I just can't figure out which or exactly how. libnetfilter_queue - Works with lower layer packets, not TCP/IP streams. Again, the rewriting should occur at the transport layer (Layer 4) as it does in this example, instead of a lower layer packet-based approach. Exact code will help immensely! Thanks!

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  • jQuery: If, Else with buttons error

    - by Wipqozn
    I'm running into an odd error. I'm working in Django 1.2, and have implemented the commenting framework. I'm trying to attach a hide/show button to each comment field, but whenever click on a hide/show button, it behaves as if each hide/show button beneath it on the page was clicked. Here's the jQuery code: <input type="Button" id="hideShow" name="hide/show" value="Hide"></input> <script> $("#hideShow").click(function() { if($(this).val() == "Hide") { $("textarea").hide("fast"); $(this).val("Show"); } else { $("textarea").show("fast"); $(this).val( "Hide"); } }); </script> So, when I click the Hide/show button, it will perform the action for each button beneath the clicked button + once for the button itself. So If I click a button, and there are two buttons beneath it, and value=hide it will first hide the 'textarea', than show the text area, than finally hide it again. I'm new to jQuery (although I do have experience in other languages), and I have an -idea- why it's not working: that whenever an action is performed jQuery jumps to the first one, than continues down the page looking for any other actions performed, and responds to each one. So it comes to my first button, sets it as being clicked, and so when jQuery comes across the other buttons it views them all as being 'clicked' and performs actions accordingly. I've thought of a semi-solution to my problem, putting in a variable which tracks how many times it has gone through, and than acting based on -that- action. But I would rather not do that, since it's not really a solution to the problem at hand but a work around. Any input is appreciated.

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  • How do I see if an established socket is stuck on a server that's expecting input?

    - by Parker
    I have a script that scans ports for open proxy servers. Problem is if it encounters a login program (specifically telnet) then it hangs there forever since it doesn't know what to do and eventually the server closes the connection. The simple solution would be to create a bunch of cases. If telnet, do this. If SSH, do that. If something else, blah blah blah. I'd like an umbrella solution since the script is not a high priority for me. The script, as it is now, is available at http://parkrrr.net/socks/scan.phps On a small scale (the page maybe averages 15 hits/day) it's fine but on a larger scale I'd be worried about a lot of open zombie sockets. Swapping the !$strpos doesn't work since servers can return more information than what you requested (headers, ads, etc). Only accepting a fixed number of bytes (as opposed to appending until EOF, which it does now) from the $fgets also does not seem to work. I am sure this is where it gets stuck: while (!feof($fp)) { $data.=fgets($fp,512); } But what can I do? Any other suggestions/warnings would also be welcomed.

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  • I'm annoyed with asp .net mvc action links? Is there something better in MVC3?

    - by Jonathon Kresner
    After almost 3 years with mvc I'm scratching my head. Is it just me, or does the way we specify links in asp .net mvc suck? @Html.ActionLink("Log Off", "LogOff", "Account") In the previews for mvc 1 we had the funky generic action links which gave us intellisense and compile checking, which I LOVED. I know they removed them because of performance issues and because you could not actually guarantee that the route would resolve all the time... However the default way of doing it just doesn't make me feel safe enough in a big application. I've also used T4Mvc with MVC2, to be honest, I didn't really like it. It's not part of the Mvc framework and frustrating to develop with especially with source control in big teams and continuous integration builds. I guess I could also import Mvc Futures and keep using the generic types (it's probably what I'll do). I'm just about to start a very big project and was wondering what other people are thinking? Is anyone else annoyed with the options or has a new solution? It seems like ActionLinks are the most basic & frequently used feature. Shouldn't there be a good out of the box solution, we're just about to hit revision 3 of this framework.

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  • Simplest way to extend doctrine for MVC Models

    - by RobertPitt
    Im developing my own framework that uses namespaces. Doctrine is already integrated into my auto loading system and im now at the stage where ill be creating the model system for my application Usually i would create a simple model like so: namespace Application\Models; class Users extends \Framework\Models\Database{} which would inherit all the default database model methods, But with Doctrine im still learning how it all works, as its not just a simple DBAL. I need to understand whats the part of doctrine my classes would extend where i can do the following: namespace Application\Models; class Users Extends Doctrine\Something\Table { public $__table_name = "users"; } And thus within the controller i would be able to do the following: public function Display($uid) { $User = $this->Model->Users->findOne(array("id" => (int)$id)); } Anyone help me get my head around this ?

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  • JSON image viewer not working in firefox

    - by jarga
    I have tried to find out why JSON is not working in Firefox all over this forum and the internet. It works on tablets, ie, safari. It works on my desktop in firefox. It only does not work after uploading I've tried a few things (commented out), such as mimeType with no solution. I have tried using the $.ajax with no better luck. Firefox had no javascript errors. I'm using jQuery 1.7. Console.log is printing out the data. $(document).ready(function(){ jQuery.support.cors = true; //$.ajaxSetup({ mimeType: "application/json" }); /*$.ajaxSetup({ scriptCharset: "utf-8" , contentType: "application/json; charset=utf-8"}); */ // loading pictures $.getJSON("intro.json?format=json", function(data){ var links = ''; var imageload = ''; var title = ''; console.log(data) $.each(data, function(key, item){ links += ' <a href=' + item.image + '>' + key + '</a>'; imageload += '<img src="' + item.image + ' " />'; title += item.alt; }); $('.introCon').html(imageload); $('.introCon img').hide(); $('.introCon img:last').fadeIn(500); $('.introCon img').fadeIn(1000); rotatePics(2); }); }); function rotatePics(currentPhoto) { var numberOfPhotos = $('.introCon img').length; currentPhoto = currentPhoto % numberOfPhotos; $('.introCon img').eq(currentPhoto).fadeOut( function() { // re-order the z-index $('.introCon img').each(function(i) { $(this).css( 'zIndex', ((numberOfPhotos - i) + currentPhoto) % numberOfPhotos ); }); $(this).show(); setTimeout(function() {rotatePics(++currentPhoto);}, 3000); }); } Here is the simple JSON from a separate file. { "1" : { "image" : "portfolio/chrpic.png", "alt" : "Blah.", "detail": "Quartz"}, "2" : { "image" : "portfolio/mysspic.png", "alt" : "Landing page.", "detail": "Container"}, "3" : { "image" : "portfolio/decode-pic3.png", "alt" : "Decode this.", "detail": "Landing page 2"}, "4" : { "image" : "portfolio/simple-think-pic.png", "alt" : "Simple Think", "detail": "simpilify your life"} }

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  • Creating a process in ASP.NET MVC controller

    - by GRKamath
    I have a requirement to run an application through my MVC controller. To get the installation path I used following link (I used answer provided by Fredrik Mörk). It worked and I could able to run the exe through a process. The problem occurred when I deployed this solution on IIS where it did not create the process as it was creating in local dev environment. Can anybody tell me how to create a windows process through a solution which is hosted on IIS ? private string GetPathForExe(string fileName) { private const string keyBase = @"SOFTWARE\Wow6432Node\MyApplication"; RegistryKey localMachine = Registry.LocalMachine; RegistryKey fileKey = localMachine.OpenSubKey(string.Format(@"{0}\{1}", keyBase, fileName)); object result = null; if (fileKey != null) { result = fileKey.GetValue("InstallPath"); } fileKey.Close(); return (string)result; } public void StartMyApplication() { Process[] pname = Process.GetProcessesByName("MyApplication"); if (pname.Length == 0) { string appDirectory = GetPathForExe("MyApplication"); Directory.SetCurrentDirectory(appDirectory); ProcessStartInfo procStartInfo = new ProcessStartInfo("MyApplication.exe"); procStartInfo.WindowStyle = ProcessWindowStyle.Hidden; Process proc = new Process(); proc.StartInfo = procStartInfo; proc.Start(); } }

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  • boost multi_index partial indexes

    - by Gokul
    Hi, I want to implement inside boost multi-index two sets of keys with same search criteria but different eviction criteria. Say i have two sets of data with same search condition, but one set needs a MRU(Most Recently Used) list of 100 and the other set requires a MRU of 200. Say the entry is like this class Student { int student_no; char sex; std::string address; }; The search criteria is student_no, but for sex='m', we need MRU of 200 and for sex='f', we need a MRU of 100. Now i have a solution where in i introduce a new ordered index to maintain ordering. For example the IndexSpecifierList will be something like this typedef multi_index_container< Student, indexed_by< ordered_unique< member<Student, int, &Student::student_no> >, ordered_unique< composite_key< member<Student, char, &Student::sex>, member<Student, int, &Student::sex_specific_student_counter> > > > > student_set Now everytime, i am inserting a new one, i have to take a equal_range for that using index 2 and remove the oldest one and if something is getting re-used, i have to update it by incrementing the counter. Is there a better solution to this kind of problem? Thanks, Gokul.

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  • How to remove a "green screen" portrait background

    - by danbystrom
    I'm looking for a way to automatically remove (=make transparent) a "green screen" portrait background from a lot of pictures. My own attempts this far have been... ehum... less successful. I'm looking around for any hints or solutions or papers on the subject. Commercial solutions are just fine, too. And before you comment and say that it is impossible to do this automatically: no it isn't. There actually exists a company which offers exactly this service, and if I fail to come up with a different solution we're going to use them. The problem is that they guard their algorithm with their lives, and therefore won't sell/license their software. Instead we have to FTP all pictures to them where the processing is done and then we FTP the result back home. (And no, they don't have an underpaid staff hidden away in the Philippines which handles this manually, since we're talking several thousand pictures a day...) However, this approach limits its usefulness for several reasons. So I'd really like a solution where this could be done instantly while being offline from the internet.

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  • Preloading images from XML into Flash

    - by tykebikemike
    I know this has been asked to death, but I cant seem to find the answer i'm looking for... I've put together a simple Flash/XML image gallery and I would like to preload the images - Simple process. Get the XML data Preload the images When all images are preloaded, go to next frame Here is my code thus far: var myXML:XML = new XML(); myXML.ignoreWhite = true; myXML.load("xmltest.xml"); myXML.onLoad = function(success){ if(success){ var myImage = myXML.firstChild.childNodes; for (i=0; i<myImage.length; i++){ var imageNumber = i+1; var imageName = myImage[i].attributes.name; var imageURL = myImage[i].firstChild.nodeValue; trace('image #: ' + imageNumber); trace('image name: ' + imageName); trace('image url: ' + imageURL + '\n'); } } }

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  • Encryption in PHP leaves unwanted characters

    - by MichaelH
    I have made an encryption function which encrypts a simple value and stores it in the database. Here is the code to encrypt and decrypt: public function encrypt($string){ $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB); $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); $value = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $this->key256, $string, MCRYPT_MODE_ECB, $iv); $value = base64_encode($value); return $value; } public function decrypt($string){ $value = base64_decode($string); $value = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $this->key256, $value, MCRYPT_MODE_ECB); return $value; } When I encrypt a simple value such as 'Michael' and decrypt again, I get the value: Michael????????? Is there a reason I get all those question marks or a way to get rid of them?

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  • Size SKU in Magento

    - by latvian
    Hi, How can I allow SKU be longer than 34 characters (for simple products) for all products? When i add new product(simple) and enter more than 34 characters, Magento cuts it to 34 after saving. In the database the 'sku' attributes ( for quete item,order item,invoice item, shipment item) from eav_attribute table hold varchar(255). For Catalog_Product_Entity the attributed is VarChar(64). In either case, it is more than 34characters. Thus, I could change SKU to 64 characters without making any change in database, correct? How do i do that? I have good understanding of the user side magento code, but not Admin side. Can you suggest me good tutorial on making changes in Admin side that could help me figure this question myself. Thank you, Margots

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  • Is MD5 really that bad?

    - by Col. Shrapnel
    Everyone says that MD5 is "broken". Though I have never seen a code that can show it's weakness. So, I hope someone of local experts can prove it with simple test. I have an MD5 hash c1e877411f5cb44d10ece283a37e1668 And a simple code to produce it $salt="#bh35^&Res%"; $pass="***"; echo $hash=md5($salt.$pass); So, the question is: 1. Is MD% really that bad? 2. If so, what's the pass behind the asterisks?

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  • Sinatra, JavaScript Cross-Domain Requests JSON

    - by pex
    I run a REST-API build on top of Sinatra. Now I want to write a jQuery Script that fetches data from the API. Sinatra is told to response with JSON before do content_type :json end A simple Route looks like get '/posts' do Post.find.to_json end My jQuery script is a simple ajax-call $.ajax({ type: 'get', url: 'http://api.com/posts', dataType: 'json', success: function(data) { // do something } }) Actually everything works fine as long as both runs on the same IP, API and requesting JS. I already tried to play around with JSONP for Rack without any positive results, though. Probably I just need a hint how to proceed.

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  • Problem with loading compiled c code in R x64 using dyn.load

    - by Sacha Epskamp
    I recently went from a 32bit laptop to a 64bit desktop (both win7). I just found out that I get an error now when loading dll's using dyn.load. I guess this is a simple mistake and I am overlooking something. For example, I write this simple c function (foo.c): void foo( int *x) {*x = *x + 1;} Then compile it in command prompt: R CMD SHLIB foo.c Then in 32bit R I can use it in R: > setwd("R") > dyn.load("foo.dll") > .C("foo",as.integer(1)) [[1]] [1] 2 but in 64bit R I get: > dyn.load("foo.dll") Error in inDL(x, as.logical(local), as.logical(now), ...) : unable to load shared object 'C:/Users/Sacha/Documents/R/foo.dll': LoadLibrary failure: %1 is not a valid Win32 application. nd.

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  • Client / Server security from mobile to website

    - by Amir Latif
    Hey. Am new to the world of web programming and learning a bunch of fairly simple new pieces of tech, trying to piece them all together. So, we have a simple client (currently iPhone, to move to J2ME soon) that's pulling down lists of data via PHP, which is talking to a MySQL db. I have a rudimentary user/login system so that data is only served to someone who matches a known user etc, either on the website or on the client. All the php scripts on the website that query the DB check to make sure an active session is in place, otherwise dumping the user back to the login screen. I've read a little about SSL and want to know if that is sufficient to protect the website AND the data passing between the server and the client?

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  • second sorting with php usort

    - by bluedaniel
    So Ive got a pretty big array of data and need to sort them by two criteria. There is variable $data['important'] and $data['basic']. They are simple numbers and I am using uasort to sort $data firstly by important and then by basic. So Important | Basic 10 | 8 9 | 9 9 | 7 7 | 9 The usort function is a simple public function sort_by_important($a, $b) { if ($a[important] > $b[important]) { return -1; } elseif ($b[important] > $a[important]) { return 1; } else { return 0; } } How can I re-sort the array to the second variable and keep the Important ordering? Thanks everyone. EDIT How about adding a third sorting option after this even? So Important Basic Less

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  • Setting up isolated COM for multiple projects.

    - by Praneeth
    My solution consists of multiple projects all of which out type class library except one whose output type is windows application. The application references all the other projects. I also have a COM component which is referenced by some of the projects and the application also. I can setup the regfree COM by changing the Isolated property of the referenced COM component in visual studio to TRUE. The solution builds successfully and I can see the manifest file generated for that particular assembly or application. Now, my question is that do I need to do this for all the projects which reference the COM component? If yes, then I know that i cannot set the Isolated property to TRUE on more than one project(gives a build error) so how do I workaround this? I am relatively new to .net and don't know much regfree COM(i assume what i am doing IS regfree COM?). Any help I can get on this issue is greatly appreciated. Thanks. I am currently using VS 2008.

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  • Return Integer value from SSIS execute SQL Task

    - by Bokhari
    I am using SQL Server 2005 Business Intelligence Studio and struggling with returning an integer value from a very simple execute SQL Task. For a very simple test, I wrote the SQL Statement as: Select 35 As 'TotalRecords' Then, I specified ResultSet as ResultName = TotalRecords and VariableName = User::TotalRecords When I execute this, the statement is executed but the variable doesn't have the updated value. However, it has the default value that I specified while variable definition. The return of a date variable works, but integer variable isn't working. The type of User::TotalRecords specified is Int32 in a package scope. Thanks for any hints

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  • How can I find the common ancestor of two nodes in a binary tree?

    - by Siddhant
    The Binary Tree here is not a Binary Search Tree. Its just a Binary Tree. The structure could be taken as - struct node { int data; struct node *left; struct node *right; }; The maximum solution I could work out with a friend was something of this sort - Consider this binary tree (from http://lcm.csa.iisc.ernet.in/dsa/node87.html) : The inorder traversal yields - 8, 4, 9, 2, 5, 1, 6, 3, 7 And the postorder traversal yields - 8, 9, 4, 5, 2, 6, 7, 3, 1 So for instance, if we want to find the common ancestor of nodes 8 and 5, then we make a list of all the nodes which are between 8 and 5 in the inorder tree traversal, which in this case happens to be [4, 9, 2]. Then we check which node in this list appears last in the postorder traversal, which is 2. Hence the common ancestor for 8 and 5 is 2. The complexity for this algorithm, I believe is O(n) (O(n) for inorder/postorder traversals, the rest of the steps again being O(n) since they are nothing more than simple iterations in arrays). But there is a strong chance that this is wrong. :-) But this is a very crude approach, and I'm not sure if it breaks down for some case. Is there any other (possibly more optimal) solution to this problem?

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  • Very Different Execution Times of SQL Query in C# and SQL Server Management Studio

    - by Paul
    I have a simple SQL query that when run from C# takes over 30 seconds then times-out every time, whereas when run on SQL Server Management Studio successfully completes instantly. In the latter case, a query execution plan reveals nothing troubling, and the execution time is spread nicely through a few simple operations. I've run 'EXEC sp_who2' while the query is running from C#, and it is listed as taking 29,000 milliseconds of CPU time, and is not blocked by anything. I have no idea how to begin solving this. Does anyone have some insight? The query is: SELECT c.lngId, ... FROM tblCase c INNER JOIN tblCaseStatus s ON s.lngId = c.lngId INNER JOIN tblCaseStatusType t ON t.lngId = s.lngId INNER JOIN [Another Database]..tblCompany cm ON cm.lngId = cs.lngCompanyId WHERE t.lngId = 25 AND c.IsDeleted = 0 AND s.lngStatus = 1

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  • If attacker has original data, and encrypted data, can they determine the passphrase?

    - by Brad Cupit
    If an attacker has several distinct items (for example: e-mail addresses) and knows the encrypted value of each item, can the attacker more easily determine the secret passphrase used to encrypt those items? Meaning, can they determine the passphrase without resorting to brute force? This question may sound strange, so let me provide a use-case: User signs up to a site with their e-mail address Server sends that e-mail address a confirmation URL (for example: https://my.app.com/confirmEmailAddress/bill%40yahoo.com) Attacker can guess the confirmation URL and therefore can sign up with someone else's e-mail address, and 'confirm' it without ever having to sign in to that person's e-mail account and see the confirmation URL. This is a problem. Instead of sending the e-mail address plain text in the URL, we'll send it encrypted by a secret passphrase. (I know the attacker could still intercept the e-mail sent by the server, since e-mail are plain text, but bear with me here.) If an attacker then signs up with multiple free e-mail accounts and sees multiple URLs, each with the corresponding encrypted e-mail address, could the attacker more easily determine the passphrase used for encryption? Alternative Solution I could instead send a random number or one-way hash of their e-mail address (plus random salt). This eliminates storing the secret passphrase, but it means I need to store that random number/hash in the database. The original approach above does not require this extra table. I'm leaning towards the the one-way hash + extra table solution, but I still would like to know the answer: does having multiple unencrypted e-mail addresses and their encrypted counterparts make it easier to determine the passphrase used?

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  • Namespaced controller redirect urls

    - by bajki
    Hello, i have probably a simple question. I have created a namespace panel with categories controller. After creating or editing a category, rails redirects me to website.com/categories/:id instead of website.com/panel/categories/:id. I've noticed that in the _form view, the @panel_categories argument of form_for() function points to /categories nor /panel/categories and that's causing this behaviour. Offcourse i can add a :url => '/panel/categories' param but i feel that it's not the best solution... Can you provide me any better solution? Thanks in advance Files: routes.rb: Photowall::Application.routes.draw do resources :photos resources :categories resources :fields resources :users, :user_sessions match 'login' => 'user_sessions#new', :as => :login match 'logout' => 'user_sessions#destroy', :as => :logout namespace :panel do root :to => "photos#index" resources :users, :photos, :categories, :fields end namespace :admin do root :to => "users#index" resources :users, :photos, :categories, :fields end end categories_controller.rb: http://pastebin.com/rWJykCCF model is the default one form: http://pastebin.com/HGmkZZHM

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