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Rodrigo Dominguez

2006-Mar-09 20:50 UTC

[Rails] rmagick and captcha

Has anyone implemented a captcha with ruby on rails and rmagick?
I tried this example:
http://wiki.rubyonrails.com/rails/pages/HowtoSecureFormsWithNoisyImages
but I got an error:
undefined method `size'' for #<NoisyImage:0x34d8070>

Thank you


--------------------------------------------------


Rodrigo Dominguez
?
Iplan Networks ???????????????Datos Personales
rdominguez@iplan.com.ar ??????rorra@rorra.com.ar
www.iplan.com.ar ?????????????www.rorra.com.ar
5031-6303 ????????????????????15-5695-6027

Bakki Kudva

2006-Mar-09 21:24 UTC

head link

[Rails] rmagick and captcha

Hi Rodrigo,

I am the author of the article in your msg.
I am not sure how you are getting that error. The NoisyImage class has
no other methods defined other than the initialize code. Which gets
called when you do session[:noisy_image] = NoisyImage.new(6).

The image size is hard coded in the NoisyImage class and you can
change it to whatever size you want on this line, in the NoisyImage
class...

canvas.new_image(32*len, 50, Magick::TextureFill.new(granite))

If you''d like you can create some vars named height and width and use
them instead.
width = 32 (or whatever - this is a per character width which gets
multiplied by the length of the code string, which you can also change
in you call to NoisyImage.new(length) I have it hard coded at six
chars.
height = 50
canvas.new_image(width*len, height, Magick::TextureFill.new(granite))

Hope it solves your problem.

bakki

On 3/9/06, Rodrigo Dominguez <rails@rorra.com.ar>
wrote:> Has anyone implemented a captcha with ruby on rails and rmagick?
> I tried this example:
> http://wiki.rubyonrails.com/rails/pages/HowtoSecureFormsWithNoisyImages
> but I got an error:
> undefined method `size'' for #<NoisyImage:0x34d8070>
>
> Thank you
>
>
> --------------------------------------------------
>
>
> Rodrigo Dominguez
>
> Iplan Networks Datos Personales
> rdominguez@iplan.com.ar rorra@rorra.com.ar
> www.iplan.com.ar www.rorra.com.ar
> 5031-6303 15-5695-6027
>
>
>
>
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

Rodrigo Dominguez

2006-Mar-09 22:30 UTC

head link

[Rails] rmagick and captcha

Hi bakki

I just copy and pastle your code and it''s working now, thank you, you
did a great job, very easy to implement ;)

----------------------------
Rodrigo Dominguez
?
Iplan Networks ???????????????
rdominguez@iplan.com.ar??????
www.iplan.com.ar??????????? 
5031-6303 ????????????????????

Datos Personales
rorra@rorra.com.ar
www.rorra.com.ar
15-5695-6027

-----Mensaje original-----
De: rails-bounces@lists.rubyonrails.org
[mailto:rails-bounces@lists.rubyonrails.org] En nombre de Bakki Kudva
Enviado el: Jueves, 09 de Marzo de 2006 06:25 p.m.
Para: rails@lists.rubyonrails.org
Asunto: Re: [Rails] rmagick and captcha

Hi Rodrigo,

I am the author of the article in your msg.
I am not sure how you are getting that error. The NoisyImage class has
no other methods defined other than the initialize code. Which gets
called when you do session[:noisy_image] = NoisyImage.new(6).

The image size is hard coded in the NoisyImage class and you can
change it to whatever size you want on this line, in the NoisyImage
class...

canvas.new_image(32*len, 50, Magick::TextureFill.new(granite))

If you''d like you can create some vars named height and width and use
them instead.
width = 32 (or whatever - this is a per character width which gets
multiplied by the length of the code string, which you can also change
in you call to NoisyImage.new(length) I have it hard coded at six
chars.
height = 50
canvas.new_image(width*len, height, Magick::TextureFill.new(granite))

Hope it solves your problem.

bakki

On 3/9/06, Rodrigo Dominguez <rails@rorra.com.ar>
wrote:> Has anyone implemented a captcha with ruby on rails and rmagick?
> I tried this example:
>
http://wiki.rubyonrails.com/rails/pages/HowtoSecureFormsWithNoisyImages> but I got an error:
> undefined method `size'' for #<NoisyImage:0x34d8070>
>
> Thank you
>
>
> --------------------------------------------------
>
>
> Rodrigo Dominguez
>
> Iplan Networks Datos Personales
> rdominguez@iplan.com.ar rorra@rorra.com.ar
> www.iplan.com.ar www.rorra.com.ar
> 5031-6303 15-5695-6027
>
>
>
>
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>_______________________________________________
Rails mailing list
Rails@lists.rubyonrails.org
http://lists.rubyonrails.org/mailman/listinfo/rails

Rodrigo Dominguez

2006-Mar-09 22:35 UTC

head link

[Rails] rmagick and captcha

There is something that I just can''t understand...

In the article, you wrote this:

  def protect
      unless session[:noisy_image]
          session[:noisy_image] = NoisyImage.new(6)
      session[:code] = session[:noisy_image].code
      end
  end

  def code_image
      image = session[:noisy_image].code_image
      send_data image, :type => ''image/jpeg'', :disposition
=> ''inline''
  end

but if I write

  def code_image
      image = NoisyImage.new(6)
      send_data image, :type => ''image/jpeg'', :disposition
=> ''inline''
  end

the image is not displaying anymore, and I don''t know why... (actually,
that was the error that I was getting before)

----------------------------
Rodrigo Dominguez
?
Iplan Networks ???????????????
rdominguez@iplan.com.ar??????
www.iplan.com.ar??????????? 
5031-6303 ????????????????????

Datos Personales
rorra@rorra.com.ar
www.rorra.com.ar
15-5695-6027

-----Mensaje original-----
De: rails-bounces@lists.rubyonrails.org
[mailto:rails-bounces@lists.rubyonrails.org] En nombre de Bakki Kudva
Enviado el: Jueves, 09 de Marzo de 2006 06:25 p.m.
Para: rails@lists.rubyonrails.org
Asunto: Re: [Rails] rmagick and captcha

Hi Rodrigo,

I am the author of the article in your msg.
I am not sure how you are getting that error. The NoisyImage class has
no other methods defined other than the initialize code. Which gets
called when you do session[:noisy_image] = NoisyImage.new(6).

The image size is hard coded in the NoisyImage class and you can
change it to whatever size you want on this line, in the NoisyImage
class...

canvas.new_image(32*len, 50, Magick::TextureFill.new(granite))

If you''d like you can create some vars named height and width and use
them instead.
width = 32 (or whatever - this is a per character width which gets
multiplied by the length of the code string, which you can also change
in you call to NoisyImage.new(length) I have it hard coded at six
chars.
height = 50
canvas.new_image(width*len, height, Magick::TextureFill.new(granite))

Hope it solves your problem.

bakki

On 3/9/06, Rodrigo Dominguez <rails@rorra.com.ar>
wrote:> Has anyone implemented a captcha with ruby on rails and rmagick?
> I tried this example:
>
http://wiki.rubyonrails.com/rails/pages/HowtoSecureFormsWithNoisyImages> but I got an error:
> undefined method `size'' for #<NoisyImage:0x34d8070>
>
> Thank you
>
>
> --------------------------------------------------
>
>
> Rodrigo Dominguez
>
> Iplan Networks Datos Personales
> rdominguez@iplan.com.ar rorra@rorra.com.ar
> www.iplan.com.ar www.rorra.com.ar
> 5031-6303 15-5695-6027
>
>
>
>
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>_______________________________________________
Rails mailing list
Rails@lists.rubyonrails.org
http://lists.rubyonrails.org/mailman/listinfo/rails

Bakki Kudva

2006-Mar-10 03:43 UTC

head link

[Rails] rmagick and captcha

On 3/9/06, Rodrigo Dominguez <rails@rorra.com.ar>
wrote:> There is something that I just can''t understand...
>
> In the article, you wrote this:
>
>   def protect
>       unless session[:noisy_image]
>           session[:noisy_image] = NoisyImage.new(6)
>       session[:code] = session[:noisy_image].code
>       end
>   end
>
>   def code_image
>       image = session[:noisy_image].code_image
>       send_data image, :type => ''image/jpeg'',
:disposition => ''inline''
>   end
>
> but if I write
>
>   def code_image
>       image = NoisyImage.new(6)
>       send_data image, :type => ''image/jpeg'',
:disposition => ''inline''
>   end
>
Here''s the problem. WHen you do ...
image = NoisyImage.new(6)
you are creating a NoisyImage object. The actual image binary is
contained in the @code_image instance variable. If you see the code
there are two accessor methods. First is :code (string) and the other
:code_image (binary image data). So you will have to send it in  your
example as...
send_data image.code_image, :type => ''image/jpeg'',
:disposition => ''inline''

In my code I had done that earlier in the line...
image = session[:noisy_image].code_image
since I was saving the noisy_image object in the session.

Hope that clarifies.

bakki
> the image is not displaying anymore, and I don''t know why...
(actually,
> that was the error that I was getting before)
>
> ----------------------------
> Rodrigo Dominguez
>
> Iplan Networks
> rdominguez@iplan.com.ar
> www.iplan.com.ar
> 5031-6303
>
> Datos Personales
> rorra@rorra.com.ar
> www.rorra.com.ar
> 15-5695-6027
>
> -----Mensaje original-----
> De: rails-bounces@lists.rubyonrails.org
> [mailto:rails-bounces@lists.rubyonrails.org] En nombre de Bakki Kudva
> Enviado el: Jueves, 09 de Marzo de 2006 06:25 p.m.
> Para: rails@lists.rubyonrails.org
> Asunto: Re: [Rails] rmagick and captcha
>
> Hi Rodrigo,
>
> I am the author of the article in your msg.
> I am not sure how you are getting that error. The NoisyImage class has
> no other methods defined other than the initialize code. Which gets
> called when you do session[:noisy_image] = NoisyImage.new(6).
>
> The image size is hard coded in the NoisyImage class and you can
> change it to whatever size you want on this line, in the NoisyImage
> class...
>
> canvas.new_image(32*len, 50, Magick::TextureFill.new(granite))
>
> If you''d like you can create some vars named height and width and
use
> them instead.
> width = 32 (or whatever - this is a per character width which gets
> multiplied by the length of the code string, which you can also change
> in you call to NoisyImage.new(length) I have it hard coded at six
> chars.
> height = 50
> canvas.new_image(width*len, height, Magick::TextureFill.new(granite))
>
> Hope it solves your problem.
>
> bakki
>
>
> On 3/9/06, Rodrigo Dominguez <rails@rorra.com.ar> wrote:
> > Has anyone implemented a captcha with ruby on rails and rmagick?
> > I tried this example:
> >
> http://wiki.rubyonrails.com/rails/pages/HowtoSecureFormsWithNoisyImages
> > but I got an error:
> > undefined method `size'' for #<NoisyImage:0x34d8070>
> >
> > Thank you
> >
> >
> > --------------------------------------------------
> >
> >
> > Rodrigo Dominguez
> >
> > Iplan Networks Datos Personales
> > rdominguez@iplan.com.ar rorra@rorra.com.ar
> > www.iplan.com.ar www.rorra.com.ar
> > 5031-6303 15-5695-6027
> >
> >
> >
> >
> > _______________________________________________
> > Rails mailing list
> > Rails@lists.rubyonrails.org
> > http://lists.rubyonrails.org/mailman/listinfo/rails
> >
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
>
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

Rodrigo Dominguez

2006-Mar-10 13:21 UTC

head link

[Rails] rmagick and captcha

That was the error, thank you for your time

----------------------------
Rodrigo Dominguez
?
Iplan Networks ???????????????
rdominguez@iplan.com.ar??????
www.iplan.com.ar??????????? 
5031-6303 ????????????????????

Datos Personales
rorra@rorra.com.ar
www.rorra.com.ar
15-5695-6027

-----Mensaje original-----
De: rails-bounces@lists.rubyonrails.org
[mailto:rails-bounces@lists.rubyonrails.org] En nombre de Bakki Kudva
Enviado el: Viernes, 10 de Marzo de 2006 12:44 a.m.
Para: rails@lists.rubyonrails.org
Asunto: Re: [Rails] rmagick and captcha

On 3/9/06, Rodrigo Dominguez <rails@rorra.com.ar>
wrote:> There is something that I just can''t understand...
>
> In the article, you wrote this:
>
>   def protect
>       unless session[:noisy_image]
>           session[:noisy_image] = NoisyImage.new(6)
>       session[:code] = session[:noisy_image].code
>       end
>   end
>
>   def code_image
>       image = session[:noisy_image].code_image
>       send_data image, :type => ''image/jpeg'',
:disposition => ''inline''
>   end
>
> but if I write
>
>   def code_image
>       image = NoisyImage.new(6)
>       send_data image, :type => ''image/jpeg'',
:disposition => ''inline''
>   end
>
Here''s the problem. WHen you do ...
image = NoisyImage.new(6)
you are creating a NoisyImage object. The actual image binary is
contained in the @code_image instance variable. If you see the code
there are two accessor methods. First is :code (string) and the other
:code_image (binary image data). So you will have to send it in  your
example as...
send_data image.code_image, :type => ''image/jpeg'',
:disposition =>
''inline''

In my code I had done that earlier in the line...
image = session[:noisy_image].code_image
since I was saving the noisy_image object in the session.

Hope that clarifies.

bakki
> the image is not displaying anymore, and I don''t know why...
(actually,> that was the error that I was getting before)
>
> ----------------------------
> Rodrigo Dominguez
>
> Iplan Networks
> rdominguez@iplan.com.ar
> www.iplan.com.ar
> 5031-6303
>
> Datos Personales
> rorra@rorra.com.ar
> www.rorra.com.ar
> 15-5695-6027
>
> -----Mensaje original-----
> De: rails-bounces@lists.rubyonrails.org
> [mailto:rails-bounces@lists.rubyonrails.org] En nombre de Bakki Kudva
> Enviado el: Jueves, 09 de Marzo de 2006 06:25 p.m.
> Para: rails@lists.rubyonrails.org
> Asunto: Re: [Rails] rmagick and captcha
>
> Hi Rodrigo,
>
> I am the author of the article in your msg.
> I am not sure how you are getting that error. The NoisyImage class has
> no other methods defined other than the initialize code. Which gets
> called when you do session[:noisy_image] = NoisyImage.new(6).
>
> The image size is hard coded in the NoisyImage class and you can
> change it to whatever size you want on this line, in the NoisyImage
> class...
>
> canvas.new_image(32*len, 50, Magick::TextureFill.new(granite))
>
> If you''d like you can create some vars named height and width and
use
> them instead.
> width = 32 (or whatever - this is a per character width which gets
> multiplied by the length of the code string, which you can also change
> in you call to NoisyImage.new(length) I have it hard coded at six
> chars.
> height = 50
> canvas.new_image(width*len, height, Magick::TextureFill.new(granite))
>
> Hope it solves your problem.
>
> bakki
>
>
> On 3/9/06, Rodrigo Dominguez <rails@rorra.com.ar> wrote:
> > Has anyone implemented a captcha with ruby on rails and rmagick?
> > I tried this example:
> >
>
http://wiki.rubyonrails.com/rails/pages/HowtoSecureFormsWithNoisyImages> > but I got an error:
> > undefined method `size'' for #<NoisyImage:0x34d8070>
> >
> > Thank you
> >
> >
> > --------------------------------------------------
> >
> >
> > Rodrigo Dominguez
> >
> > Iplan Networks Datos Personales
> > rdominguez@iplan.com.ar rorra@rorra.com.ar
> > www.iplan.com.ar www.rorra.com.ar
> > 5031-6303 15-5695-6027
> >
> >
> >
> >
> > _______________________________________________
> > Rails mailing list
> > Rails@lists.rubyonrails.org
> > http://lists.rubyonrails.org/mailman/listinfo/rails
> >
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
>
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>_______________________________________________
Rails mailing list
Rails@lists.rubyonrails.org
http://lists.rubyonrails.org/mailman/listinfo/rails

Bakki Kudva

2006-Mar-10 19:13 UTC

head link

[Rails] rmagick and captcha

You are welcome. Glad to help.
-bakki

On 3/10/06, Rodrigo Dominguez <rails@rorra.com.ar>
wrote:> That was the error, thank you for your time
>
> ----------------------------
> Rodrigo Dominguez
>
> Iplan Networks
> rdominguez@iplan.com.ar
> www.iplan.com.ar
> 5031-6303
>
> Datos Personales
> rorra@rorra.com.ar
> www.rorra.com.ar
> 15-5695-6027
>
> -----Mensaje original-----
> De: rails-bounces@lists.rubyonrails.org
> [mailto:rails-bounces@lists.rubyonrails.org] En nombre de Bakki Kudva
> Enviado el: Viernes, 10 de Marzo de 2006 12:44 a.m.
> Para: rails@lists.rubyonrails.org
> Asunto: Re: [Rails] rmagick and captcha
>
> On 3/9/06, Rodrigo Dominguez <rails@rorra.com.ar> wrote:
> > There is something that I just can''t understand...
> >
> > In the article, you wrote this:
> >
> >   def protect
> >       unless session[:noisy_image]
> >           session[:noisy_image] = NoisyImage.new(6)
> >       session[:code] = session[:noisy_image].code
> >       end
> >   end
> >
> >   def code_image
> >       image = session[:noisy_image].code_image
> >       send_data image, :type => ''image/jpeg'',
:disposition => ''inline''
> >   end
> >
> > but if I write
> >
> >   def code_image
> >       image = NoisyImage.new(6)
> >       send_data image, :type => ''image/jpeg'',
:disposition => ''inline''
> >   end
> >
>
> Here''s the problem. WHen you do ...
> image = NoisyImage.new(6)
> you are creating a NoisyImage object. The actual image binary is
> contained in the @code_image instance variable. If you see the code
> there are two accessor methods. First is :code (string) and the other
> :code_image (binary image data). So you will have to send it in  your
> example as...
> send_data image.code_image, :type => ''image/jpeg'',
:disposition =>
> ''inline''
>
> In my code I had done that earlier in the line...
> image = session[:noisy_image].code_image
> since I was saving the noisy_image object in the session.
>
> Hope that clarifies.
>
> bakki
>
> > the image is not displaying anymore, and I don''t know why...
> (actually,
> > that was the error that I was getting before)
> >
> > ----------------------------
> > Rodrigo Dominguez
> >
> > Iplan Networks
> > rdominguez@iplan.com.ar
> > www.iplan.com.ar
> > 5031-6303
> >
> > Datos Personales
> > rorra@rorra.com.ar
> > www.rorra.com.ar
> > 15-5695-6027
> >
> > -----Mensaje original-----
> > De: rails-bounces@lists.rubyonrails.org
> > [mailto:rails-bounces@lists.rubyonrails.org] En nombre de Bakki Kudva
> > Enviado el: Jueves, 09 de Marzo de 2006 06:25 p.m.
> > Para: rails@lists.rubyonrails.org
> > Asunto: Re: [Rails] rmagick and captcha
> >
> > Hi Rodrigo,
> >
> > I am the author of the article in your msg.
> > I am not sure how you are getting that error. The NoisyImage class has
> > no other methods defined other than the initialize code. Which gets
> > called when you do session[:noisy_image] = NoisyImage.new(6).
> >
> > The image size is hard coded in the NoisyImage class and you can
> > change it to whatever size you want on this line, in the NoisyImage
> > class...
> >
> > canvas.new_image(32*len, 50, Magick::TextureFill.new(granite))
> >
> > If you''d like you can create some vars named height and width
and use
> > them instead.
> > width = 32 (or whatever - this is a per character width which gets
> > multiplied by the length of the code string, which you can also change
> > in you call to NoisyImage.new(length) I have it hard coded at six
> > chars.
> > height = 50
> > canvas.new_image(width*len, height, Magick::TextureFill.new(granite))
> >
> > Hope it solves your problem.
> >
> > bakki
> >
> >
> > On 3/9/06, Rodrigo Dominguez <rails@rorra.com.ar> wrote:
> > > Has anyone implemented a captcha with ruby on rails and rmagick?
> > > I tried this example:
> > >
> >
> http://wiki.rubyonrails.com/rails/pages/HowtoSecureFormsWithNoisyImages
> > > but I got an error:
> > > undefined method `size'' for
#<NoisyImage:0x34d8070>
> > >
> > > Thank you
> > >
> > >
> > > --------------------------------------------------
> > >
> > >
> > > Rodrigo Dominguez
> > >
> > > Iplan Networks Datos Personales
> > > rdominguez@iplan.com.ar rorra@rorra.com.ar
> > > www.iplan.com.ar www.rorra.com.ar
> > > 5031-6303 15-5695-6027
> > >
> > >
> > >
> > >
> > > _______________________________________________
> > > Rails mailing list
> > > Rails@lists.rubyonrails.org
> > > http://lists.rubyonrails.org/mailman/listinfo/rails
> > >
> > _______________________________________________
> > Rails mailing list
> > Rails@lists.rubyonrails.org
> > http://lists.rubyonrails.org/mailman/listinfo/rails
> >
> >
> > _______________________________________________
> > Rails mailing list
> > Rails@lists.rubyonrails.org
> > http://lists.rubyonrails.org/mailman/listinfo/rails
> >
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
>
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

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