Все вопросы: [captcha]

92 вопросов

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2
голосов
1ответов
1612 просмотров

прошить с помощью recaptcha или любого другого решения captcha

Я некоторое время искал в Интернете по этому поводу, но не похоже, что есть какая-либо доступная информация, конкретно касающаяся captcah и flash. Моя цель - создать загрузчик изображений на флэш-памяти и реализовать на нем "рекапчу", чтобы загрузка контролировалась. Я знаю, что некоторые ...

0
голосов
10ответов
18601 просмотров

[PHP / JavaScript]: Как обновить Captcha?

Я показываю капчу таким образом: <img src="ReturnCaptcha2.php" alt="CAPTCHA" width="100" height="50"> Рядом с ним есть гиперссылка "Обновить".Я хочу вспомнить этот файл PHP, не обновляя страницу.Возможно, в этом замешан AJAX.Пожалуйста, помогите.

0
голосов
4ответов
791 просмотров

Передать переменную между формой и страницей php?

Возможно, я ошибаюсь У меня есть целевая страница с формой.Когда я публикую эту страницу, значения from попадают на страницу с именем mail.php Я хотел добавить капчу (в данном случае re-captcha.com) на первую страницу, чтобы люди не рассылали спам на моем сайте с заявлением о приеме на раб...

3
голосов
1ответов
1826 просмотров

Криптографическая безопасность хеш-cookie Captcha

CRM-система моей компании использует систему капчи при каждом входе в систему и для использования определенных административных функций. Исходная реализация сохраняла текущее значение капчи для переменной сеанса на стороне сервера. Теперь нам необходимо переделать это так, чтобы вся необходим...

0
голосов
1ответов
147 просмотров

вопрос о повторной капче

У меня есть две страницы apply.php (целевая страница) и mail.php, который составляет большую часть кода для проекта онлайн-приложения, над которым я работал У меня есть учетная запись re-captcha, и я, кажется, не понимаю, как применить код re-captcha на двухстраничном Senerio. когда у меня...

8
голосов
3ответов
17004 просмотров

Как использовать GMail в качестве бесплатного SMTP-сервера и преодолеть капчу

GMail можно использовать в качестве SMTP-сервера.Я написал код, который это делает.Но, как мы все знаем, GMail может иногда аутентифицироваться с помощью captcha ( проверка изображения , как они это называют).То же самое может быть причиной отклонения аутентификации SMTP. Как я видел, Google ...

50
голосов
18ответов
19693 просмотров

Blocking comment spam without using captcha

What are some non-captcha methods for blocking spam on my comments?

2
голосов
2ответов
2373 просмотров

C# Session not saved from HTTPHandler

I have a HTTPHandler that produces a Captcha image to the user whenever the captcha.ashx page is requested. The code for it is simple: CaptchaHandler handler = new CaptchaHandler(); Random random = new Random(); string[] fonts = new string[4] { "Arial", "Verdana", "Georgi...

2
голосов
3ответов
4737 просмотров

Script to download CAPTCHA images

For completely non-nefarious purposes - machine learning specifically, I'd like to download a huge dataset of CAPTCHA images. However, CAPTCHA is always implemented using some obfuscated javascript that makes getting at the actual images without a browser a non-trivial task, at least to me, who i...

0
голосов
3ответов
186 просмотров

wrapped captcha control in a p tag, how to shift it to the right?

wrapped captcha control in a p tag, how to shift it to the right about 50 px? Edit I am using reCaptcha using the .net control. My input elements are to the right of the page by about 50 px. My repactha is rendering left aligned (all the way to the left, so the alignment is off when compared t...

-2
голосов
2ответов
9697 просмотров

How to Use Captcha Plugin in CodeIgniter

I followed this page, and the code is not working as it should in my project. I've tried to find other tutorial on how to execute what I need, however, it does not work as it should in my project either. Is anyone able to direct me to a tutorial that explains in a detailed fashion on how to use C...

10
голосов
13ответов
14108 просмотров

PHP Captcha without session

Ok, here is an issue: in the project i'm working on, we can't rely on server-side sessions for any functionality. The problem is that common captcha solutions from preventing robotic submits require session to store the string to match captcha against. The question is - is there any way to sol...

0
голосов
3ответов
1471 просмотров

jQuery Captcha type script

Anyone have suggestions for creating an extremely simple form verification field using jquery? I need to block basic form spam. Would love to have some type of 1+1= field that us used to make sure it's a human submitting the form. I don't have the abilty to put .php or .asp on the site so it woul...

2
голосов
2ответов
2257 просмотров

ASP.NET MVC CAPTCHA

Possible Duplicate: What CAPTCHA system is compatible with ASP.NET MVC? I'm looking for a CAPTCHA control that is designed for ASP.NET MVC. Which one is the easiest to implement?

8
голосов
4ответов
2297 просмотров

alternative captcha methods

I'm looking for inspiration here. I need to employ some sort of human verification for my website, but the most common method these days (asking users to type the letters & numbers they see in an image into a text input box) seems a little rubbish - I find it hard sometimes to work out what t...

16
голосов
2ответов
11786 просмотров

How to use Python plugin reCaptcha client for validation?

I want to make a captcha validation. I get the key from the recaptcha website and already succeed to put the public key to load the webpage with the challenge. <script type="text/javascript" src="http://api.recaptcha.net/challenge?k=<your_public_key>"> </script> <noscri...

10
голосов
2ответов
7637 просмотров

How does ReCAPTCHA work?

My reading of this article suggests that a benefit of ReCAPTCHA is that it can have humans verify words not recognised in the OCR/digitization of books. It does this by using these words in "Are you human?" tests. So ReCAPTCHA kills two birds with one stone. Great! But I dont get it. If the word...

0
голосов
1ответов
1391 просмотров

Creating sound - reading out alphabets - in PHP

I've been doing a captcha script lately and was rather successful with it. However I want to create another script that creates a sound which can be used with the captcha. E.g. the captcha script generates A2B1FD - and the sound script must be able to read out A, 2, B, 1, F, D. How do I go about...

1
голосов
1ответов
582 просмотров

Port ASPX page to Sharepoint

I'm trying to port an existing ASPX page, which is part of an existing web site, into a new Sharepoint site. The ASPX page is a relatively simple form with some server-side controls, the ability to email form submissions and "Captcha". The current website has the Newtonsoft.CaptchaControl dll r...

2
голосов
1ответов
633 просмотров

how can i use captcha and audio for human validation?

I need to validate human user by using captcha in PHP. Also the critical characters generated by captcha will be pronounced by an audio voice. Is it possible? If possible then how?

3
голосов
1ответов
3116 просмотров

PHP Function to bend/warp an image

I'm working with my simple PHP captcha algorithm (http://www.source.ofitall.com/devel/captcha.php) and I have been struggling to try and adjust it to be the more attractive and easier to read, Google style captcha. Does anyone know of a function that will take in a GD image reference and bend/wa...

-1
голосов
1ответов
828 просмотров

Add captcha to this web button using php

I have a page with some php code that i don't fully understand yet and i have a php snippet for using recaptcha that i think i have a pretty decent handle on. I'm not sure how to integrate the two yet. I see in the captcha code where it triggers the event but im not sure how to block the butt...

0
голосов
1ответов
582 просмотров

Having problems with captchas and headers (PHP)

I'm trying to add a captcha to a site somebody else has made. I've been following this tutorial and if I make it in a separate file, it works just fine (so it's not an issue with the server setup) However, when I try to add it to an existing page, it's not working at all. When I load the page i...

0
голосов
1ответов
168 просмотров

Flash + PHP to make a submission form?

I have a flash app, and i want to put an in-app pop up that allows users to submit information that will be handled by a PHP backend. I want this to be secure, both mysql injection wise and anti-bot spam captcha wise. Can someone kindly point me towards a couple of tutorials to get me started? I...

1
голосов
1ответов
4005 просмотров

Captcha image not displayed when publishing website

I'm using some captcha control implementation which I took from here and it's working fine in my localhost but the problem rises when publishing it on the server. The captcha image itself is not displayed. Of course I'm using master page and the captcha itself is under some usercontrol. Is there...

2
голосов
3ответов
1268 просмотров

Trouble with ASP.NET CAPTCHA Control Sample with ASP.NET MVC

I am trying to use the following A CAPTCHA Server Control for ASP.NET - by Jeff Atwood within an ASP.NET MVC site. The custom control doesn't seem to be validating when the form is submitted. Is there anyone who has done any work with this sample using ASP.NET MVC? The basic code I am using is...

13
голосов
10ответов
5719 просмотров

How to Prevent SPAM without CAPTCHAs or a Centrally managed system (e.g. akismet)

Has anyone been able to successfully prevent spam on their site without placing a burden on your visitor (e.g. CAPTCHA) and without using a centralized spam reporting system (e.g. Akismet) I've found this & it looks promising, but doesn't contain detailed deployment instructions. I want to ...

-1
голосов
1ответов
6002 просмотров

Best way to do captcha with an Ajax form in jquery?

I am working on a comment script using ajax, json and jquery. I have most of it done except the hardest part, If a user post X ammount of comments in X ammount of time, my php script will return a "captcha" trigger to my javascript code below, telling it that this user needs to enter a captch...

4
голосов
2ответов
1734 просмотров

How to deal with jquery ajax comments and captcha

I am working on a comment system on a social network, I am using jquery, I can post the comments with ajax with no problem but sometimes I need a user to submit a captcha form if they are posting too many comments or for other reasons. I think the best way to do this is to add it into the cur...

1
голосов
1ответов
607 просмотров

Using Watin but Want to enter CaptCha manually!

I'm using Using Watin with my project..I want all the things to be automated and Watin is doing that well. But I need the captha entry part to be done! I have to do this manually! Is there any way to popup an input box to get the Captcha Value and Watin will continue then??? Any help would be ap...