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  • How do I convert byte to string?

    - by HardCoder1986
    Hello! Is there any fast way to convert given byte (like, by number - 65) to it's text hex representation? Basically, I want to convert array of bytes into (I am hardcoding resources) their code-representation like BYTE data[] = {0x00, 0x0A, 0x00, 0x01, ... } How do I automate this Given byte -> "0x0A" string conversion?

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  • What are the weaknesses of this user authentication method?

    - by byronh
    I'm developing my own PHP framework. It seems all the security articles I have read use vastly different methods for user authentication than I do so I could use some help in finding security holes. Some information that might be useful before I start. I use mod_rewrite for my MVC url's. Passwords are sha1 and md5 encrypted with 24 character salt unique to each user. mysql_real_escape_string and/or variable typecasting on everything going in, and htmlspecialchars on everything coming out. Step-by step process: Top of every page: session_start(); session_regenerate_id(); If user logs in via login form, generate new random token to put in user's MySQL row. Hash is generated based on user's salt (from when they first registered) and the new token. Store the hash and plaintext username in session variables, and duplicate in cookies if 'Remember me' is checked. On every page, check for cookies. If cookies set, copy their values into session variables. Then compare $_SESSION['name'] and $_SESSION['hash'] against MySQL database. Destroy all cookies and session variables if they don't match so they have to log in again. If login is valid, some of the user's information from the MySQL database is stored in an array for easy access. So far, I've assumed that this array is clean so when limiting user access I refer to user.rank and deny access if it's below what's required for that page. I've tried to test all the common attacks like XSS and CSRF, but maybe I'm just not good enough at hacking my own site! My system seems way too simple for it to actually be secure (the security code is only 100 lines long). What am I missing? I've also spent alot of time searching for the vulnerabilities with mysql_real_escape string but I haven't found any information that is up-to-date (everything is from several years ago at least and has apparently been fixed). All I know is that the problem was something to do with encoding. If that problem still exists today, how can I avoid it? Any help will be much appreciated.

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  • How to access string[] in xhtml page

    - by Kalpana
    I am having a simple string array in my bean as public String[] colors = new String[]{"red", "blue", "green"}; and trying to display these colors from my xhtml as but I am getting a java.lang.NumberFormatException: For input string: "colors" java.lang.NumberFormatException: For input string: "colors" at java.lang.NumberFormatException.forInputString(NumberFormatException. java:48) at java.lang.Integer.parseInt(Integer.java:447) at java.lang.Integer.parseInt(Integer.java:497) at javax.el.ListELResolver.coerce(ListELResolver.java:166) at javax.el.ListELResolver.getValue(ListELResolver.java:51) at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:54)

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  • html5 uploader + jquery drag & drop: how to store file data with FormData?

    - by lauthiamkok
    I am making a html5 drag and drop uploader with jquery, below is my code so far, the problem is that I get an empty array without any data. Is this line incorrect to store the file data - fd.append('file', $thisfile);? $('#div').on( 'dragover', function(e) { e.preventDefault(); e.stopPropagation(); } ); $('#div').on( 'dragenter', function(e) { e.preventDefault(); e.stopPropagation(); } ); $('#div').on( 'drop', function(e){ if(e.originalEvent.dataTransfer){ if(e.originalEvent.dataTransfer.files.length) { e.preventDefault(); e.stopPropagation(); // The file list. var fileList = e.originalEvent.dataTransfer.files; //console.log(fileList); // Loop the ajax post. for (var i = 0; i < fileList.length; i++) { var $thisfile = fileList[i]; console.log($thisfile); // HTML5 form data object. var fd = new FormData(); //console.log(fd); fd.append('file', $thisfile); /* var file = {name: fileList[i].name, type: fileList[i].type, size:fileList[i].size}; $.each(file, function(key, value) { fd.append('file['+key+']', value); }) */ $.ajax({ url: "upload.php", type: "POST", data: fd, processData: false, contentType: false, success: function(response) { // .. do something }, error: function(jqXHR, textStatus, errorMessage) { console.log(errorMessage); // Optional } }); } /*UPLOAD FILES HERE*/ upload(e.originalEvent.dataTransfer.files); } } } ); function upload(files){ console.log('Upload '+files.length+' File(s).'); }; then if I use another method is that to make the file data into an array inside the jquery code, var file = {name: fileList[i].name, type: fileList[i].type, size:fileList[i].size}; $.each(file, function(key, value) { fd.append('file['+key+']', value); }); but where is the tmp_name data inside e.originalEvent.dataTransfer.files[i]? php, print_r($_POST); $uploaddir = './uploads/'; $file = $uploaddir . basename($_POST['file']['name']); if (move_uploaded_file($_POST['file']['tmp_name'], $file)) { echo "success"; } else { echo "error"; } as you can see that tmp_name is needed to upload the file via php... html, <div id="div">Drop here</div>

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  • Javascript - dynamically add input fields

    - by Neeraj
    Hi Guys, I have a code to add input fields dynamically in js. But the problem is if i add 3 fields or more and then browse a file(if the input field is file), the value of the field selected disappears. Can any one help Heres my code Thanks in advance. :) <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>Untitled Document</title> <script type="text/javascript"> <!-- Begin /* This script and many more are available free online at The JavaScript Source!! http://javascript.internet.com Created by: Husay :: http://www.communitxt.net */ var arrInput = new Array(0); var arrInputValue = new Array(0); fields = 1; maxInput = 4; function addInput() { //arrInput.push(createInput(arrInput.length)); if(fields <= maxInput){ fields +=1; arrInput.push(arrInput.length); //arrInputValue.push(arrInputValue.length); arrInputValue.push(""); display(); } } function display() { document.getElementById('parah').innerHTML=""; for (intI=0;intI<arrInput.length;intI++) { document.getElementById('parah').innerHTML+=createInput(arrInput[intI], arrInputValue[intI]); } } function saveValue(intId,strValue) { arrInputValue[intId]=strValue; } function createInput(id,value) { return "<input type='file' id='test "+ id +"' onChange='javascript:saveValue("+ id +",this.value)' value='"+ value +"'><br>"; } function deleteInput() { if (arrInput.length > 0) { fields -=1; arrInput.pop(); arrInputValue.pop(); } display(); } // End --> </script> </head> <body> <a href="javascript:addInput()">Add more input field(s)</a><br> <a href="javascript:deleteInput()">Remove field(s)</a><br> <input type="file" /><br> <input type="file" /><br> <input type="file" /><br> <p id="parah"></p> </body> </html>

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  • Problem with files consists of spaces and single quotes?

    - by Vijay
    I'using the following code to create thumbnails using ffmpeg but it was working fine for the files which have no spaces or any quotes.. But when the file has a space (like 'sachin knock.flv') or files which have quotes (like sachin's_double_cent.mp4) it doesn't work.. What can i do to get those files work accurately? One restriction is that i can't rename files as they are lump some.. My code is <?php error_reporting(E_ALL); extension_loaded('ffmpeg') or die('Error in loading ffmpeg'); $link = mysql_connect('localhost', 'root', ''); if (!$link) { die('Not connected : ' . mysql_error()); } $db_selected = mysql_select_db('db', $link); $max_width = 120; $max_height = 72; $path ="/home/rootuser/public_html/temp/"; $qry="select id, input_file, output_file from videos where thumbnail='' or thumbnail is null;"; $res=mysql_query($qry); while($row = mysql_fetch_array($res,MYSQL_ASSOC)) { $orig_str = array(" "); $rep_str = array("\ "); $outfile = $row[output_file]; // $infile = $row[input_file]; $infile1 = str_replace($orig_str, $rep_str, $outfile); $tmp = explode(".",$infile1); $tmp_name = $tmp[0]; $imgname = $tmp_name.".png"; $srcfile = "/home/rootuser/public_html/uploaded_vids/".$outfile; echo exec("ffmpeg -i ".$srcfile." -r 1 -ss 00:00:05 -f image2 -s 120x72 ".$path.$imgname); $nname = "./temp/".$imgname; $fileo = fopen($nname,"rb"); if($fileo) { $imgData = addslashes(file_get_contents($nname)); echo $imgdata; $qryy="update videos set thumbnail='{$imgData}' where input_file='$outfile'"; $ress=mysql_query($qryy); } else echo "Could not open<br><br>"; unlink('$nname'); } ?>

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  • Google Maps and Json structure

    - by mark
    I found a great script to plot markers on Google Maps. It uses an Json file to laod it. The problem is I don't know what the structure looks like in this case. Can you help? function loadMarkers() { var bounds = map.getBounds(); var zoomLevel = map.getZoom(); $.post("/gmaps/markers/index.php", {zoom: zoomLevel, swLat: bounds.getSouthWest().lat(), swLon: bounds.getSouthWest().lng(), neLat: bounds.getNorthEast().lat(), neLon: bounds.getNorthEast().lng()}, function(data) { processMarkers(data, _smallMarkerSize); }, "json" ); } function processMarkers(webcams, markerSize) { var marker = null; var markersInView = new Array(); var idsInView = new Array(); // Loop through the new webcams for (var i = 0; i < webcams.length; i++) { var idx = markers.indexOf(webcams[i].id); if (idx == -1) { var info_html = "<table class='infowindow'>"; info_html += "<tr><td class='img'>"; info_html += "<img src='" + webcams[i].smallimg + "' /><td>"; info_html += "<td><p><b>" + webcams[i].loc + "</b>"; info_html += "<br /><a href='/webcam/" + webcams[i].url + "' target='_blank'>Show webcam</a></p></td></tr>"; info_html += "</table>"; marker = new WebcamMarker(new GLatLng(webcams[i].latitude, webcams[i].longitude), {image: "" + webcams[i].smallimg + "", height: markerSize, width: markerSize}); marker.myhtml = info_html; map.addOverlay(marker); markersInView[webcams[i].id] = marker; } else { markersInView[webcams[i].id] = markers[webcams[i].id]; } idsInView.push(webcams[i].id); } // Now remove the markers outside of the viewport for (var i = 0; i < webcamids.length; i++) { var idx = markersInView.indexOf(webcamids[i]); if (idx == -1) { marker = markers[webcamids[i]]; map.removeOverlay(marker); } } markers = markersInView; webcamids = idsInView; }

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  • How do I calculate percentiles with python/numpy?

    - by Uri
    Is there a convenient way to calculate percentiles for a sequence or single-dimensional numpy array? I am looking for something similar to Excel's percentile function. I looked in NumPy's statistics reference, and couldn't find this. All I could find is the median (50th percentile), but not something more specific.

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  • Convet from line points to shape points

    - by VOX
    I have an array of points that make up a line. However I need to draw the line with the width of n pixels. How can I transform that points for lines to points for polygon (or a shape) so I can directly draw it on canvas. I'm developing two program at the same time, one is j2me and another is .NET CF. j2me doesn't support drawing lines with width. Please take a look at the picture. link text

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  • javascript add prototype method to all functions?

    - by salmane
    Is there a way to add a method to all javascript functions without using the prototype library? something along the lines of : Function.prototype.methodName = function(){ return dowhateverto(this) }; this is what i tried so far but it didnt work. Perhaps it is a bad idea also if so could you please tell me why? if so can I add it to a set of functions i choose something like : MyFunctions.prototype.methodName = function(){ return dowhateverto(this) }; where MyFunctions is an array of function names thank you

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  • Zend Framework - routes - all requests to one controller except requests for existing controllers

    - by se_pavel
    How to create route that accept all requests for unexsting controllers, but leave requests for existing. This code catch all routes $route = new Zend_Controller_Router_Route_Regex('(\w+)', array('controller' = 'index', 'action' = 'index')); $router-addRoute('index', $route); how should I specify route requests like /admin/* or /feedback/* to existing adminController or feedbackController?

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  • Get image data for Direct3d rendering stream

    - by Mr Bell
    I would like to get at the raw image data, as in a pointed to a byte array or something like that, of the image output from a direct3d app without actually rendering it to the monitor. I need to do this so that I can render direct3d as a directshow source filter Visual studio 2008 c++

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  • How to get webcam video stream bytes in c++

    - by Mr Bell
    I am targeting windows machines. I need to get access to the pointer to the byte array describing the individual streaming frames from an attached usb webcam. I saw the playcap directshow sample from the windows sdk, but I dont see how to get to raw data, frankly, I don't understand how the video actually gets to the window. Since I don't really need anything other than the video capture I would prefer not to use opencv. Visual Studio 2008 c++

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  • Scriptaculous Sortable.create - Can't hook the dragged element

    - by Tom
    When using Sortable.create I can't seem to get the element that is being dragged. Does Sciptaculous not fully implement all Draggable and Droppable features when you use sortable? Given: Sortable.create("sortArea", {scroll:window, onChange:orderLi}); function orderLi(){ console.log(this.draggables.each(function(e){if(e.dragging==true){return e};})); } My console always shows all the array of draggables. How do I only grab the one that is being dragged?

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  • collection_check_boxes get value

    - by 24sharon
    this is my view code <%=collection_check_boxes(nil, :admin_ids, Admin.all, :id, :name )%> but when i try get the value in the controller i get always an empty value if the user doesnt check any item and the length is always more than zero when i write this code arr = params[:admin_ids] ||= [] puts arr.length ther arr.length is 1 even if the user doesnt select any of the items how can i get an array of selected items only with no empty values

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  • c++ how to write code for atoi and find in a function called getTriplet()

    - by Gerri
    Hello I am trying to write code for a function called Triplet getTriplet() and I must use find and atoi in this fuction to call the array[3] = {0, 1, 2} and find the "," and find the "()" in the program? I am so lost. I have read and read and cannot locate any informatin which really touches on the subjects enough to give me an understanding of what I am suppose to do. Please help if you can! Thanks in advance.

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  • Split with token info

    - by boomhauer
    I would like to split a string using multiple chars to split upon. For example, consider spin text format: This is a {long|ugly|example} string I would want to parse this string and split it on the "{", "|", and "}" chars myString.Split('|','{','}') Now I have tokens to play with, but what I would like is to retain the info about which char was used to split each piece of the array that is returned. Any existing code that can do something like this?

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  • Automated download of website content using ASP.net

    - by Yaaqov
    Using ASP.net, what methods can I use to do the following: Open up a connection to a given URL to read HTML content Parse the given URL for hyperlinks, and place them in an array Loop through each hyperlink (only 1 level down), opening each one, saving the HTML contents in a table, and move to the next hyperlink until done. If ASP.net is not up to the task, other languages or free scripts/toolkits would be acceptable. Thanks.

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  • How to convert different local float format to standard float format, using zend?

    - by Linto davis
    my local is 'en_IN' (ie Zend_Registry::get('Zend_Locale')) I have to convert the local value to standard float number format for example 1,235.23 = 1235.23 3.23 = 3.23 I have used the following code Zend_Locale_Format::getFloat($value, array('locale' = Zend_Registry::get('Zend_Locale'))); it working fine for 1,235.23, and i get the answer 1235.23. But when i give 3.23 , i get the error on this code And the error shown as 'No localized value in 3.23 found', This issue is happening in the browser opera, when we set the language is English(IN)(en-IN)

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  • Arrays become null after passing to function in PHP

    - by William
    So when I pass my filled arrays to the function createform the form is created with $max_avatars options, but they have no name or value. Why are my arrays becoming null? <?php $avatar_image_name = array('hacker','samurai','cool','happy','thatsnice','angry','tv','bang'); $avatar_name = array('Hacker','Samurai','Cool','Happy','That\'s nice','Angry','TV','Bang'); $max_avatars = 6; createform($max_avatars, $avatar_image_name, $avatar_name); ?> The function createform: function createform($max_avatars, $avatar_image_name, $avatar_name) { $string ='<table id="formtable"> <tr><td class="formtext">Name:</td><td><input type="text" name=name size=25 /></td></tr> <tr><td class="formtext">Trip:</td><td><input type="text" name=trip size=25 /> (<font style="color: #ff0000">Don\'t use your password</font>)</td></tr> <tr><td class="formtext">Comment</td><td><textarea name=post rows="4" cols="50"></textarea></td></tr> <tr><td class="formtext">Avatar:</td> <td> <select name=avatar>'; for($i = 0; $i < $max_avatars; $i++){ $string = ($string . '<option value="'.$avatar_image_name[i].'">'.$avatar_name[i].'</option>'); } $string = ($string . '</select> </td> <tr><td class="formtext">Extra</td><td>Fortune: <input type="radio" name="extra" value="fortune" /> Poker: <input type="radio" name="extra" value="poker" /></td></tr> </table> <input type=submit value="Submit" id="submitbutton">'); echo $string; }

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