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  • Server side form validation and POST data

    - by tomcritchlow
    Hi, I have a user input form here: http://www.7bks.com/create (Google login required) When you first create a list you are asked to create a public username. Unfortuantely currently there is no constraint to make this unique. I'm working on the code to enforce unique usernames at the moment and would like to know the best way to do it. Tech details: appengine, python, webapp framework What I'm planning is something like this: first the /create form posts the data to /inputlist/ (this is the same as currently happens) /inputlist/ queries the datastore for the given username. If it already exists then redirect back to /create display the /create page with all the info previously but with an additional error message of "this username is already taken" My question is: Is this the best way of handling server side validation? What's the best way of storing the list details while I verify and modify the username? As I see it I have 3 options to store the list details but I'm not sure which is "best": Store the list details in the session cookie (I am using GAEsessions for cookies) Define a separate POST class for /create and post the list data back from /inputlist/ to the /create page (currently /create only has a GET class) Store the list in the datastore, even though the username is non-unique. Thank you very much for your help :) I'm pretty new to python and coding in general so if I've missed something obvious my apologies. Tom PS - I'm sure I can eventually figure it out but I can't find any documentation on POSTing data using the webapp appengine framework which I'd need in order to do solution 2 above :s maybe you could point me in the right direction for that too? Thanks! PPS - It's a little out of date now but you can see roughly how the /create and /inputlist/ code works at the moment here: 7bks.com Gist

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  • Paypal Error - IPN Validation Failed.

    - by user504178
    Hello , I am getting below error. [12/26/2010 5:48 AM] - FAIL: IPN Validation Failed. IPN POST Vars from Paypal: auth=A76zglTH7sCSLAVjZISTEp38SYXWAoNlO1uurxDvnlFy40uy-mlrvqkp_S5q3bFhVBbO2GwpJRvdYDvfQuM0581EYkEITS1SnDzfWV-ju60OZm_VzHsc8o2Q8K7mmZuDs9ANFwW9iIP2Ig8fGPSwZN8APK2PtCMIda28rBnNMJ2FWaeNKgmzTCuG5HnpzLD7ZtTCElp4MC05kyx9Ro-9ggqzVx7OU1zleJ_c1W, form_charset=UTF-8, IPN Response from Paypal Server: HTTP/1.1 200 OK Date: Sun, 26 Dec 2010 10:48:50 GMT Server: Apache Set-Cookie: c9MWDuvPtT9GIMyPc3jwol1VSlO=Ejohjh-kFgFpKAeNiYlgG8LwsLOi5Sir4Ut7tXINWaRmWM2eNXfFkJRQmO09WqBbXWIpXd0ydzrS7JMWO0sHZMg0Wfdd4gt6UcpSswiiUl2EfiP_ykxKJOFOzcjMrn_6xzc8GG%7c5mvwkJOzeFg-vpKR1fovKAVDyvmzI5sFbPatUC6gbf9Wk4Llel4btOJa7uQbYSLhuprHVG%7c537g5xvn4Hns8l-HE1pnyQ2GUAxcSINm-oVJENMuU6yS_bYa4IAw4QlGP-0zq80pjZa5j0%7c1293360531; domain=.paypal.com; path=/ Set-Cookie: cookie_check=yes; expires=Wed, 23-Dec-2020 10:48:51 GMT; domain=.paypal.com; path=/ Set-Cookie: navcmd=_notify-validate; domain=.paypal.com; path=/ Set-Cookie: navlns=0.0; expires=Sat, 21-Dec-2030 10:48:51 GMT; domain=.paypal.com; path=/ Set-Cookie: Apache=10.191.196.11.222161293360530699; path=/; expires=Sat, 12-Nov-04 04:20:34 GMT Connection: close Transfer-Encoding: chunked Content-Type: text/html; charset=UTF-8 7 INVALID 0 Can anyone please let me know whats wrong over here. Regards, Atul

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  • Validation L2S question

    - by user158020
    This may be a bit winded because I am new to wpf. I have created a partial class for an entity in my L2S class that is primarily used for validation. It implements the onchanging and onvalidate methods. I am trying to use the MVVM pattern, and in a window/view I have set the datacontext in the xaml: <Window.DataContext> <vm:StartViewModel /> </Window.DataContext> when a user leaves a required field in the view blank, the onchanging event of the partial class is fired when I close the form, not when I save the data. So, if a user leaves the textbox blank, the old value is retained and the onchaging method is fired, but I have no idea how to alert the user of the resulting error. here is my onchanging code in the partial class: partial void Ondocument_titleChanging(string value) { if (value.Length == 0) throw new Exception("Document title is required."); if (value.Length > 256) throw new Exception("Document title cannot be longer than 256 characters."); } throwing an exception doesn't notify the user of the error. it just allows the form to close and rejects the changes to the textbox. hope this makes sense... edit: this example was taken from Scott Guthries article here: http://aspalliance.com/1427_LINQ_to_SQL_Part_5__Binding_UI_using_the_ASPLinqDataSource_Control.5

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  • IP Address Validation Help

    - by Zubair1
    I am using this IP Validation Function that I came across while browsing, it has been working well until today i ran into a problem. For some reason the function won't validate this IP as valid: 203.81.192.26 I'm not too great with regular expressions, so would appreciate any help on what could be wrong. If you have another function, I would appreciate if you could post that for me. The code for the function is below: public static function validateIpAddress($ip_addr) { global $errors; $preg = '#^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}' . '(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$#'; if(preg_match($preg, $ip_addr)) { //now all the intger values are separated $parts = explode(".", $ip_addr); //now we need to check each part can range from 0-255 foreach($parts as $ip_parts) { if(intval($ip_parts) > 255 || intval($ip_parts) < 0) { $errors[] = "ip address is not valid."; return false; } return true; } return true; } else { $errors[] = "please double check the ip address."; return false; } }

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  • Load page for validation but do not display it to user in ASP.NET

    - by Kevin
    We have a site requiring users pay $2 to view the details of a record. We occasionally get complaints because we send them to the payment page, and once they pay it turns out the record isn't valid, or it was lost, or the data couldn't be generated. So we want to add in a check to ensure the page constructs properly before the user is required to pay for it. However, we don't want the user to have access to the page until they pay for it. Is there anything in ASP.NET 3.5 or just general web design that would allow something like this? The data on the record is real time and computed on a backend server before sent to the client. Occasionally this computation fails for whatever reason. Our alternative is to call all of the loading methods and validate the data, then redirect them to the payment page. The problem is A) this will be a relatively involved process rewriting all of these methods to return validation information, and B) it still doesn't guarentee us the page will load properly. Any thoughts?

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  • CodeIgniter - Image Validation & Thumbnailing

    - by Sebhael
    I'm currently trying to create a function that validates and creates thumbnails for images on upload - but I'm quite lost on what I'm doing. I'm assuming I'm off on my terminology so I'm not really getting any search results to help point me in the right direction. My playground is a form with 6 upload fields that are required. One of these fields is for a simple 32x32 icon image, another a portrait orientation (most likely) photo, and then 4 standard desktop screenshots -- and I'm using CodeIgniter as my framework. I would like to create a function that validates/thumbnails images, and only have to call it on the validation if at all possible. I know I can achieve this per-image, since the documentation for CI is quite through on this - but to reduce redundancy I'm looking for the better option. Outside of that, I don't even actually understand in full how to manipulate images unless it's just $this-input-post('field') - then calling all functions onto this? I don't know, I'm confused and posting on the actual CI forums has yielded me nothing - so all I'm really looking for is a point in the right direction to understanding what I'm trying to achieve here. This also all might not make any sense, I know it doesn't to me - but I can explain more if needed. Thanks in advance.

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  • MVC + Is validation attributes enough?

    - by ebb
    My ViewModel has validation attributes that ensure that it wont be empty etc. - Is that enough or should I let my the code contracts I have made be in the ActionResult too? Example: // CreateCaseViewModel.cs public class CreateCaseViewModel { [Required] public string Topic { get; set; } [Required] public string Message { get; set; } } // CaseController.cs [AuthWhere(AuthorizeRole.Developer)] [HttpPost] public ActionResult Create(CreateCaseViewModel model) { if(!ModelState.IsValid) { // TODO: some cool stuff? } if (string.IsNullOrWhiteSpace(model.Message)) { throw new ArgumentException("Message cannot be null or empty", model.Message); } if (string.IsNullOrWhiteSpace(model.Topic)) { throw new ArgumentException("Topic cannot be null or empty", model.Topic); } var success = false; string message; var userId = new Guid(_membershipService.GetUserByUserName(User.Identity.Name).ProviderUserKey.ToString()); if(userId == Guid.Empty) { throw new ArgumentException("UserId cannot be empty"); } Case createCase = _caseService.CreateCase(model.Topic, model.Message); if(createCase == null) { throw new ArgumentException("Case cannot be null"); } if(_caseService.AddCase(createCase, userId)) { message = ControllerResources.CaseCreateFail; } else { success = true; message = ControllerResources.CaseCreateSuccess; } return Json(new { Success = success, Message = message, Partial = RenderPartialViewToString(ListView, GetCases) }); }

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  • End-date greater than start-date validation javascript not working properly

    - by ianco slovak
    I am trying to make a validation for my dates so that enddate to be greater than start date but is not working.What am i doing wrong? <head> <script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script> <link href="@Url.Content("~/Content/Site.css")" rel="stylesheet" type="text/css" /> <script src="@Url.Content("~/Scripts/jquery-ui-1.8.19.min.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/jquery-ui.unobtrusive.min.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/jquery-ui.unobtrusive-0.5.0.min.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/gen_validatorv4.js")" type="text/javascript"></script> </head> @using (Html.BeginForm("SearchFree", "Reservation", FormMethod.Get,new {id = "form" })) { <h7>Introduceti perioada Rezervarii</h7> <div class="editor-label"> <label id="cautare" for="StartDate">Data Intrare: </label>@(Html.JQueryUI().Datepicker("StartDate").DateFormat("mm-dd-yy").MinDate(DateTime.Today).ShowButtonPanel(true).ChangeYear(true).ChangeMonth(true).NumberOfMonths(2)) </div> <div class="editor-label"> <label id="cautare" for="EndDate">Data Iesire:</label>@(Html.JQueryUI().Datepicker("EndDate").DateFormat("mm-dd-yy").MinDate(DateTime.Today).ShowButtonPanel(true).ChangeYear(true).ChangeMonth(true).NumberOfMonths(2)) </div> <p> <input id="buton1" type="submit" value="Cauta camere libere" /> </p> } <script type="text/javascript"> $(document).ready(function () { $.validator.addMethod("EndDate", function (value, element) { var startDate = $('.StartDate').val(); return Date.parse(startDate) <= Date.parse(value); } , "* End date must be after start date"); $('.form').validate(); }); </script>

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  • JQuery Checkbox with Textbox Validation

    - by Volrath
    I am using Jorn's validation plugin. I have a a group of checkboxes beside a group of textboxes. The textboxes are disabled by default and will enable when the matching checkbox is checked. At least 1 checkbox has to be checked which is not a problem. However, when I check more than 2 checkboxes only 1 textbox validates. The form still submits even when the second checkbox is empty. $count = 0; while($row = mysql_fetch_array($rs)) { ?> <tr> <td> <label> <input type="checkbox" name="tDays[]" id="tDays<?php echo $count; ?>" value="<?php echo $row['promoDayID'];?>" onClick="enableTxt();" <?php if((isset($arrTDays) && in_array_THours($row['promoDayID'], $arrTDays)) || (!empty($arrSelectedTHours) && in_array_THours($row['promoDayID'], $arrSelectedTHours))) { echo "checked='checked'"; }?> validate="required:true" /> <?php echo $row['promoDay'];?>: </label> </td> <td align="right"> <input type="textbox" size="45" style="font-size:12px" name="tHours[]" id="tHours<?php echo $count; ?>" <?php if(isset($arrTDays) && in_array_THours($row['promoDayID'], $arrTDays)) { echo "value='" .getHours($row['promoDayID'], $arrTDays) ."'"; } elseif (!empty($arrSelectedTHours) && in_array_THours($row['promoDayID'], $arrSelectedTHours)) { echo "value='" .getHours($row['promoDayID'], $arrSelectedTHours). "'"; } else { echo "value='' disabled='disabled'"; }?> class="required" /> <label for="tHours[]" class="error" id="tHourserror<?php echo $count; ?>">Please enter the Trading Hour.</label> </td> </tr> <?php $count++; }//while ?> This is done using javascript: function enableTxt() { for (i = 0; i <= 7; i++) { if (document.getElementById("tDays" + i) != null && document.getElementById("tDays" + i).checked == true) { document.getElementById('tHours' + i).disabled = false; document.getElementById('tHourserror' + i).style.visibility = "visible"; } else if (document.getElementById("tDays" + i) != null) { document.getElementById('tHours' + i).disabled = "disabled"; document.getElementById('tHours' + i).value = ""; document.getElementById('tHourserror' + i).style.visibility = "hidden"; } } } Please kindly advise in detail as to how this problem can be solved. I am fairly weak in JQuery.

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  • Python 3: receive user input including newline characters

    - by Beau Martínez
    I'm trying to read in the following text from the command-line in Python 3 (copied verbatim, newlines and all): lcbeika rraobmlo grmfina ontccep emrlin tseiboo edosrgd mkoeys eissaml knaiefr Using input, I can only read in the first word as once it reads the first newline it stops reading. Is there a way I could read in them all without iteratively calling input?

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  • Uploading files using HTML file input on iphone

    - by futureelite7
    I am creating a web form for uploading small movie clips to a HTTP server. However, while my HTML file input control gets shown on an ipod touch, the button is completely disabled and I cannot click it to upload files. What do I have to do to use the input control to upload files (e.g. movie clips or pictures) to my HTTP server. My page is XHTML MP 1.2 compliant.

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  • HTML Select and Text Input

    - by Vijay Dev
    We have all seen countless instances of forms with a select drop down having one of it's options as "Other" and on choosing that option, we get to see a input text box (which was hidden all along) asking us to type in our input. Is there a better way to implement this? Are there plugins out there which will let me do this better? Or are standard HTML elements suffice (some setting to a , may be) ?

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  • Xcode and input/output files

    - by user112232
    I have to put my input files directly in the root directory for xcode to see them, and the output files are always in the same root directly. How can I configure xcode to change the input/output directories ?

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  • cross platform keyboard/mouse input recommendation

    - by Jay
    Does anyone have any suggestions for a good cross platform input library? I'd like to get: * at least keyboard and mouse input * on at least the big three operating systems * Small/fast * C or C++ * permissive licensing gpl2/mit/free/etc. So far I've seen: * OIS (used in Ogre) http://sourceforge.net/projects/wgois/ * SDL (used everywhere it seems, might be a clue) http://www.libsdl.org/index.php * Allegro http://www.talula.demon.co.uk/allegro/readme.html Has any one used any of these, or know of something else that might be good? Thanks

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  • Allowing the specific format of email address in MVC input

    - by user219315
    Hi I have a page in MVC where i want to take the email adddress as the input which can be of format like:"Jone Davi" <[email protected]>, "Ben Miller" <[email protected]>, "Jane Ton" <[email protected]>, Then from this I want to parse the valid emailaddress.But on click of the submit button getting error message" A potentially dangerous Request.Form value was detected from the client " Thus is there any way to take the input of email address in above format and bypass the security error for that specific page. Thanks in advance.

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  • jQuery user input to control option of one jquery function

    - by Tristan
    Hello, I'd like an input to control that : jQuery.ajax({ type: "get", dataType: "jsonp", url: "http://www.foo.com/something.php", data: {numberInput: "NUMBER I WANT TO CONTROL" }, On the HTML side I've <input type="text" id="jqueryControl" /> I want when a user enters a number into the jqueryControl to insert it in the .ajax function and reload the data according to the new value entered. Any idea to do that please ? Thanks

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  • Using perfectly formatted input as list in Haskell

    - by RankWeis
    I'm doing a program in Haskell (on the Haskell platform), and I know I'm getting perfectly formatted inputs, so the input may look like [ ['a'], ['b'], ['c'] ] I want Haskell to be able to take this and use it as a list of it's own. And, I'd like this list to be over multiple lines, i.e., I want this to also work: [ ['a'], ['b'], ['c'] ] I can parse this input, but I've been told there's a way to do this easily - this is supposed to be the 'trivial' part of the assignment, but I don't understand it.

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  • Append INPUT to TEXTAREA as being types in JQuery

    - by Ricky
    I have an INPUT text box. As someone types into the INPUT text box, i need it to append/add-to a TEXTAREA value. Lets say user types '12345' into the text box. The textarea (default value="Comment: ") will automatically add: 'Comment: 12345'. Adding '12345' as they type.

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  • actionscript 2.0 input text box

    - by user1769760
    So, here's what I'm trying to do, and I, frankly, believe it should be obvious, but I can't figure it out. I am creating a very simple Artificial Intelligence simulation. And in this simulation there's an input box at the bottom of the screen (called "input" exactly). "input" has a variable in its properties that is called "inbox" (exactly). Using a key listener the script calls up a function when the enter button is pressed. This function has 2 if statements and an else statement which dictate the responses of the AI (named "nistra"). The problem is this, When I type in what I want to say, and hit enter, it always uses the second response ("lockpick" in the code below). I have tried variations on the code but I still don't see the solution. I believe the problem is that the "typein" variable holds all the format information from the text box as well as the variable, but I could be wrong, that information is in here as well, underneath the code itself. Any help I can get would be greatly appreciated. var typein = ""; //copies the text from inbox into here, this is what nistra responds to var inbox = ""; //this is where the text from the input text box goes var respond = ""; //nistra's responses go here my_listener = new Object(); // key listener my_listener.onKeyDown = function() { if(Key.isDown(13)) //enter button pressed { typein = inbox; // moves inbox into typein nistraresponse(); // calles nistra's responses } //code = Key.getCode(); //trace ("Key pressed = " + code); } Key.addListener(my_listener); // key listener ends here nistraresponse = function() // nistra's responses { trace(typein); // trace out what "typein" holds if(typein = "Hello") // if you type in "Hello" { respond = "Hello, How are you?"; } if(typein = "lockpick") // if you type in "lockpick" { respond = "Affirmative"; } else // anything else { respond = "I do not understand the command, please rephrase"; } cntxtID = setInterval(clearnistra, 5000); // calls the function that clears out nistra's response box so that her responses don't just sit there } clearnistra = function() // clears her respond box { respond = ""; clearInterval(cntxtID); } // "typein" traces out the following <TEXTFORMAT LEADING="2"><P ALIGN="CENTER"><FONT FACE="Times New Roman" SIZE="20" COLOR="#FF0000" LETTERSPACING="0" KERNING="0">test</FONT></P></TEXTFORMAT>

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