15 Jan
2010
15 Jan
'10
10:05 a.m.
Hello folks,
I have a proposed method for migrating the captcha plugin to a component.
I have posted a patch here: http://jira.xwiki.org/jira/browse/XWIKI-4741
which contains the core modifications which I am proposing. Though I have
a patch, this is still in the design phase and I welcome anyone to suggest
changes.
ComponentRole: Captcha
/**
* Check if the solution to the captcha is correct.
*
* @param answer The provided solution.
* @return true if the solution is correct.
*/
boolean isAnswerCorrect(String answer);
Implementing components:
DefaultImageCaptchaAction
DefaultSoundCaptchaAction
The new DefaultImageCaptcha component can be used to solve captchas which
were downloaded through the old struts based jcaptcha plugin. Both components
also implement org.xwiki.action.Action and when execute() is called, they
send a captcha to the response.
The components depend on the request and response in the container being
servlet request/response because com.octo.captcha.module.web.image.ImageToJpegHelper
and com.octo.captcha.module.web.sound.SoundToWavHelper require HttpServletRequest and
HttpServletResponse. Also to get the ID of the session in a way that is compatible
with the old struts based method of getting captchas, an HttpServletRequest is needed.
I am not happy with this design as it demands the use of the if instanceof then cast
hack. I would like to hear any ideas about how to clean this up.
There is also a velocity initializer which provides a captcha service with:
/**
* Check if the solution to the captcha is correct.
*
* @param captchaName The name of the Captcha you are checking the answer against
* @param answer The provided solution
* @return true if the solution is correct
* @throws UnsupportedOperationException If there is no captcha by the name
captchaName
*/
public boolean isAnswerCorrect(String captchaName, String answer) throws
UnsupportedOperationException
and
/** @return a List of the names of all registered classes implementing {@link
org.xwiki.captcha.Captcha}. */
public List<String> listCaptchaNames()
In my opinion the html should all be in the application side and the core code
should not even know it's URL. I am working on an application and would be
interested to hear what requirements you think it should meet.
Sorry for the long mail, I am anxious to hear your ideas about this.
Caleb James DeLisle
15 Jan
15 Jan
10:12 a.m.
New subject: [xwiki-devs] [proposal] Migrating the captcha plugin to a component
Hi,
On Fri, Jan 15, 2010 at 2:35 PM, Caleb James DeLisle <
calebdelisle(a)lavabit.com> wrote:
Hello folks,
I have a proposed method for migrating the captcha plugin to a component.
I have posted a patch here: http://jira.xwiki.org/jira/browse/XWIKI-4741
which contains the core modifications which I am proposing. Though I have
a patch, this is still in the design phase and I welcome anyone to suggest
changes.
ComponentRole: Captcha
/**
* Check if the solution to the captcha is correct.
*
* @param answer The provided solution.
* @return true if the solution is correct.
*/
boolean isAnswerCorrect(String answer);
May be I have understood wrong, but it seems only your velocity API (below)
provides a method signature like:
boolean isAnswerCorrect(String captchaId, String answer);
- Why not have this in component API? For an example, recaptcha works like
this. It needs both a challengeId as well as it's answer for it to validate
the response.
- This methods should probably declare an exception (e.g. unable to contact
recaptcha servers?)
Implementing components:
DefaultImageCaptchaAction
DefaultSoundCaptchaAction
The new DefaultImageCaptcha component can be used to solve captchas which
were downloaded through the old struts based jcaptcha plugin. Both
components
also implement org.xwiki.action.Action and when execute() is called, they
send a captcha to the response.
The components depend on the request and response in the container being
servlet request/response because
com.octo.captcha.module.web.image.ImageToJpegHelper
and com.octo.captcha.module.web.sound.SoundToWavHelper require
HttpServletRequest and
HttpServletResponse. Also to get the ID of the session in a way that is
compatible
with the old struts based method of getting captchas, an HttpServletRequest
is needed.
I am not happy with this design as it demands the use of the if instanceof
then cast
hack. I would like to hear any ideas about how to clean this up.
There is also a velocity initializer which provides a captcha service with:
/**
* Check if the solution to the captcha is correct.
*
* @param captchaName The name of the Captcha you are checking the
answer against
* @param answer The provided solution
* @return true if the solution is correct
* @throws UnsupportedOperationException If there is no captcha by the
name captchaName
*/
public boolean isAnswerCorrect(String captchaName, String answer) throws
UnsupportedOperationException
If this is a velocity API (it sounds like that), it should not throw an
exception, there is no way to catch it from velocity. It should probably
return false in case of an error (and set an error message inside the
context).
I'm a bit unclear about your proposal and in doubt whether I have understood
your proposal wrong. Please correct me if that is the case.
Thanks.
- Asiri
and
/** @return a List of the names of all registered classes implementing
{@link org.xwiki.captcha.Captcha}. */
public List<String> listCaptchaNames()
In my opinion the html should all be in the application side and the core
code
should not even know it's URL. I am working on an application and would be
interested to hear what requirements you think it should meet.
Sorry for the long mail, I am anxious to hear your ideas about this.
Caleb James DeLisle
_______________________________________________
devs mailing list
devs(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/devs
11:09 a.m.
New subject: [xwiki-devs] [proposal] Migrating the captcha plugin to a component
Asiri Rathnayake wrote:
You are right, I wanted to be easy on the application programmer by letting them
know that they haven't just gotten the captcha wrong, but throwing exceptions to
velocity will open a can of worms.
Hi,
On Fri, Jan 15, 2010 at 2:35 PM, Caleb James DeLisle <
calebdelisle(a)lavabit.com> wrote:
Not exactly, I think you are thinking of:
$captchaservice.isAnswerCorrect($sessionId, $answer)
while captchaName is the hint for getting a component from the component manager. eg:
$captchaservice.isAnswerCorrect("defaultImageCaptcha", $answer)
Hello folks,
I have a proposed method for migrating the captcha plugin to a component.
I have posted a patch here: http://jira.xwiki.org/jira/browse/XWIKI-4741
which contains the core modifications which I am proposing. Though I have
a patch, this is still in the design phase and I welcome anyone to suggest
changes.
ComponentRole: Captcha
/**
* Check if the solution to the captcha is correct.
*
* @param answer The provided solution.
* @return true if the solution is correct.
*/
boolean isAnswerCorrect(String answer);
May be I have understood wrong, but it seems only your velocity API (below)
provides a method signature like:
boolean isAnswerCorrect(String captchaId, String answer);
- Why not have this in component API? For an example, recaptcha works like
this. It needs both a challengeId as well as it's answer for it to validate
the response.
I have the component set up to automatically get the id from the servlet so that an
application can just reference an image from the old struts based image captcha
generator and the next answer given by the same web browser will fit that captcha.
here is a working example:
{{velocity}}
#if($captchaservice.isAnswerCorrect("defaultImageCaptcha",
$request.getParameter("captchaAnswer")))
#set($captchaAnswerIsCorrect = true)
#else
{{html}}
<img src="$doc.getURL('jcaptcha')"/ >
<form name="input" action="$doc.getURL()"
method="get">
Fill in the letters in the image above:
<br/>
<input type="text" name="captchaAnswer" />
<input type="submit" value="I'm Human" />
</form>
{{/html}}
#end
#if($captchaAnswerIsCorrect)
= You win.
#end
{{/velocity}}
The fact that the last call to the struts based jcaptcha component was from same session
means that the answer provided will work.
Perhaps it would be best to offer a way to check the answer with the sessionId
either A:
$captchaservice.isAnswerCorrect("defaultImageCaptcha", $sessionId, $answer)
or B:
#set($captcha = $captchaservice.getCaptcha("defaultImageCaptcha"))
$captcha.isAnswerCorrect($sessionId, $answer)
Also an easy way to get the session id using $request in Velocity?
Something like:
A:
#set($sessionId = $captchaservice.getSessionId($request))
or B:
#set($sessionId = $captcha.getSessionId($request))
- This methods should probably declare an exception (e.g. unable to contact
recaptcha servers?)
I hadn't thought of recaptcha being an implementation of captcha but it makes
perfect sense. does the all generic "throws Exception" seem right to you?
Implementing components:
DefaultImageCaptchaAction
DefaultSoundCaptchaAction
The new DefaultImageCaptcha component can be used to solve captchas which
were downloaded through the old struts based jcaptcha plugin. Both
components
also implement org.xwiki.action.Action and when execute() is called, they
send a captcha to the response.
The components depend on the request and response in the container being
servlet request/response because
com.octo.captcha.module.web.image.ImageToJpegHelper
and com.octo.captcha.module.web.sound.SoundToWavHelper require
HttpServletRequest and
HttpServletResponse. Also to get the ID of the session in a way that is
compatible
with the old struts based method of getting captchas, an HttpServletRequest
is needed.
I am not happy with this design as it demands the use of the if instanceof
then cast
hack. I would like to hear any ideas about how to clean this up.
There is also a velocity initializer which provides a captcha service with:
/**
* Check if the solution to the captcha is correct.
*
* @param captchaName The name of the Captcha you are checking the
answer against
* @param answer The provided solution
* @return true if the solution is correct
* @throws UnsupportedOperationException If there is no captcha by the
name captchaName
*/
public boolean isAnswerCorrect(String captchaName, String answer) throws
UnsupportedOperationException
If this is a velocity API (it sounds like that), it should not throw an
exception, there is no way to catch it from velocity. It should probably
return false in case of an error (and set an error message inside the
context).
I'm a bit unclear about your proposal and in doubt whether I have understood
your proposal wrong. Please correct me if that is the case.
It is probably that my proposal is unclear, I think your understanding is
correct though.
Thank you for looking at it,
Caleb
Thanks.
- Asiri
and
/** @return a List of the names of all registered classes implementing
{@link org.xwiki.captcha.Captcha}. */
public List<String> listCaptchaNames()
In my opinion the html should all be in the application side and the core
code
should not even know it's URL. I am working on an application and would be
interested to hear what requirements you think it should meet.
Sorry for the long mail, I am anxious to hear your ideas about this.
Caleb James DeLisle
_______________________________________________
devs mailing list
devs(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/devs
_______________________________________________
devs mailing list
devs(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/devs
11:15 a.m.
New subject: [xwiki-devs] [proposal] Migrating the captcha plugin to a component
Hi,
Not exactly, I think you are thinking of:
$captchaservice.isAnswerCorrect($sessionId, $answer)
Yes. I believe here sessionId is generated by the captcha service for each
captcha displayed? Or is it something else?
I'm asking because recaptcha generates a unque captchaId for each captcha it
generates. Then you need to handover this captchaId + user's answer to the
server to verify the answer.
while captchaName is the hint for getting a component
from the component
manager. eg:
$captchaservice.isAnswerCorrect("defaultImageCaptcha", $answer)
Ok, I understand now.
The fact that the last call to the struts based
jcaptcha component was from
same session
means that the answer provided will work.
Perhaps it would be best to offer a way to check the answer with the
sessionId
either A:
$captchaservice.isAnswerCorrect("defaultImageCaptcha", $sessionId, $answer)
or B:
#set($captcha = $captchaservice.getCaptcha("defaultImageCaptcha"))
$captcha.isAnswerCorrect($sessionId, $answer)
Both sounds good. Although I like the second form.
Also an easy way to get the session id using $request
in Velocity?
Something like:
A:
#set($sessionId = $captchaservice.getSessionId($request))
or B:
#set($sessionId = $captcha.getSessionId($request))
I don't know whether binding velocity APIs to HTTPRequest is a good idea,
but it will surely make things easy. We could even have something like:
#set($captcha = $captchaservice.getCaptcha("defaultImageCaptcha"))
$captcha.isAnswerCorrect($request)
So we leave all the parameter resolution to the captcha component itself.
Thanks.
- Asiri
11:38 a.m.
New subject: [xwiki-devs] [proposal] Migrating the captcha plugin to a component
Asiri Rathnayake wrote:
As easy as it is, I get nervous thinking about hardcoding the name of the
parameter in the core, suppose we wanted to use it in a case where that
parameter was taken? Anyway defining hardcoded strings gives me a bad feeling.
How about:
#set($captcha = $captchaservice.getCaptcha("defaultImageCaptcha"))
#set($servletId = $captcha.getServletId($request))
$captcha.isAnswerCorrect($answer)
captcha.getServletId can take an HttpServletRequest object and the XWikiRequest
(in velocity that is $request) will work because XWikiRequest extends and wraps
the HttpServletRequest object.
Thanks,
Caleb
Hi,
Not exactly, I think you are thinking of:
Agreed, I am thinking I can create an implementation of Captcha which wraps
another implementation but never throws any exceptions so it is velocity friendly.
$captchaservice.isAnswerCorrect($sessionId,
$answer)
Yes. I believe here sessionId is generated by the captcha service for each
captcha displayed? Or is it something else?
I'm asking because recaptcha generates a unque captchaId for each captcha it
generates. Then you need to handover this captchaId + user's answer to the
server to verify the answer.
while captchaName is the hint for getting a
component from the component
manager. eg:
$captchaservice.isAnswerCorrect("defaultImageCaptcha", $answer)
Ok, I understand now.
The fact that the last call to the struts based
jcaptcha component was from
same session
means that the answer provided will work.
Perhaps it would be best to offer a way to check the answer with the
sessionId
either A:
$captchaservice.isAnswerCorrect("defaultImageCaptcha", $sessionId, $answer)
or B:
#set($captcha = $captchaservice.getCaptcha("defaultImageCaptcha"))
$captcha.isAnswerCorrect($sessionId, $answer)
Both sounds good. Although I like the second form. Also an easy way to get the session id using
$request in Velocity?
Something like:
A:
#set($sessionId = $captchaservice.getSessionId($request))
or B:
#set($sessionId = $captcha.getSessionId($request))
I don't know whether binding velocity APIs to HTTPRequest is a good idea,
but it will surely make things easy. We could even have something like:
#set($captcha = $captchaservice.getCaptcha("defaultImageCaptcha"))
$captcha.isAnswerCorrect($request)
So we leave all the parameter resolution to the captcha component itself.
Thanks.
- Asiri
_______________________________________________
devs mailing list
devs(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/devs
11:51 a.m.
New subject: [xwiki-devs] [proposal] Migrating the captcha plugin to a component
Whoops I made a mistake in my example:
How about:
#set($captcha = $captchaservice.getCaptcha("defaultImageCaptcha"))
#set($servletId = $captcha.getServletId($request))
$captcha.isAnswerCorrect($answer)
should be:
$captcha.isAnswerCorrect($servletId, $answer)
Caleb
Caleb James DeLisle wrote:
Asiri Rathnayake wrote:
As easy as it is, I get nervous thinking about hardcoding the name of the
parameter in the core, suppose we wanted to use it in a case where that
parameter was taken? Anyway defining hardcoded strings gives me a bad feeling.
How about:
#set($captcha = $captchaservice.getCaptcha("defaultImageCaptcha"))
#set($servletId = $captcha.getServletId($request))
$captcha.isAnswerCorrect($answer)
captcha.getServletId can take an HttpServletRequest object and the XWikiRequest
(in velocity that is $request) will work because XWikiRequest extends and wraps
the HttpServletRequest object.
Thanks,
Caleb
Hi,
Not exactly, I think you are thinking of:
Agreed, I am thinking I can create an implementation of Captcha which wraps
another implementation but never throws any exceptions so it is velocity friendly.
$captchaservice.isAnswerCorrect($sessionId,
$answer)
Yes. I believe here sessionId is generated by the captcha service for each
captcha displayed? Or is it something else?
I'm asking because recaptcha generates a unque captchaId for each captcha it
generates. Then you need to handover this captchaId + user's answer to the
server to verify the answer.
while captchaName is the hint for getting a
component from the component
manager. eg:
$captchaservice.isAnswerCorrect("defaultImageCaptcha", $answer)
Ok, I understand now.
The fact that the last call to the struts based
jcaptcha component was from
same session
means that the answer provided will work.
Perhaps it would be best to offer a way to check the answer with the
sessionId
either A:
$captchaservice.isAnswerCorrect("defaultImageCaptcha", $sessionId, $answer)
or B:
#set($captcha = $captchaservice.getCaptcha("defaultImageCaptcha"))
$captcha.isAnswerCorrect($sessionId, $answer)
Both sounds good. Although I like the second form. Also an easy way to get the session id using
$request in Velocity?
Something like:
A:
#set($sessionId = $captchaservice.getSessionId($request))
or B:
#set($sessionId = $captcha.getSessionId($request))
I don't know whether binding velocity APIs to HTTPRequest is a good idea,
but it will surely make things easy. We could even have something like:
#set($captcha = $captchaservice.getCaptcha("defaultImageCaptcha"))
$captcha.isAnswerCorrect($request)
So we leave all the parameter resolution to the captcha component itself. Thanks.
- Asiri
_______________________________________________
devs mailing list
devs(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/devs
_______________________________________________
devs mailing list
devs(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/devs
11:58 a.m.
New subject: [xwiki-devs] [proposal] Migrating the captcha plugin to a component
Hi Caleb,
On Fri, Jan 15, 2010 at 4:21 PM, Caleb James DeLisle <
calebdelisle(a)lavabit.com> wrote:
May be my above question got commented out on your mail reader.
Thanks.
- Asiri
Whoops I made a mistake in my example:
How about:
#set($captcha = $captchaservice.getCaptcha("defaultImageCaptcha"))
#set($servletId = $captcha.getServletId($request))
$captcha.isAnswerCorrect($answer)
should be:
$captcha.isAnswerCorrect($servletId, $answer)
Why is it called servletId? shouldn't it be captchaId? Or may be I have
misunderstood you.
>
$captchaservice.isAnswerCorrect($sessionId, $answer)
>>
> Yes. I believe here sessionId is generated by the captcha service for
each
> captcha displayed? Or is it something else?
>
> I'm asking because recaptcha generates a unque captchaId for each
captcha
it
> generates. Then you need to handover this
captchaId + user's answer to
the
> server to verify the answer.
1:08 p.m.
New subject: [xwiki-devs] [proposal] Migrating the captcha plugin to a component
I'm assuming you are referring to $captcha.getServletId($request)
I said getServletId because I couldn't think of a way a request could
yield any other type of id, maybe you can think of one?
I do want to use captchaId for:
$captcha.isAnswerCorrect($servletId, $answer)
the method would look like:
boolean isAnswerCorrect(String captchaId, String answer)
In most implementations the servletId would be used as the captchaId.
On the one hand I feel like getServletId should be a function of the
$captchaservice but as you can see here:
http://www.docjar.com/html/api/com/octo/captcha/module/config/CaptchaModule…
If a configuration is set to ID_GENERATED=true then it uses a different method
(this is the function called by the struts jcaptcha action)
Caleb
Asiri Rathnayake wrote:
Hi Caleb,
On Fri, Jan 15, 2010 at 4:21 PM, Caleb James DeLisle <
calebdelisle(a)lavabit.com> wrote:
May be my above question got commented out on your mail reader.
Thanks.
- Asiri
_______________________________________________
devs mailing list
devs(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/devs
Whoops I made a mistake in my example:
How about:
#set($captcha = $captchaservice.getCaptcha("defaultImageCaptcha"))
#set($servletId = $captcha.getServletId($request))
$captcha.isAnswerCorrect($answer)
should be:
$captcha.isAnswerCorrect($servletId, $answer)
Why is it called servletId? shouldn't it be captchaId? Or may be I have
misunderstood you.
>
$captchaservice.isAnswerCorrect($sessionId, $answer)
> Yes. I believe here sessionId is generated by the captcha service for
each
> captcha displayed? Or is it something else?
>
> I'm asking because recaptcha generates a unque captchaId for each
captcha
it
> generates. Then you need to handover this
captchaId + user's answer to
the
>> server to verify the answer.
16 Jan
16 Jan
6:51 p.m.
New subject: [xwiki-devs] [proposal] Migrating the captcha plugin to a component
Update:
I have changed a few things in my copy of the code.
I renamed the Captcha interface CaptchaVerifier because it is
a component for verifying captchas of a certain type, not
an individual captcha puzzle.
I also named the id which is gotten from the request "userId" because
it may be generated on a per-captcha basis and passed by a parameter
depending on jcaptcha settings.
From velocity the commands look like:
#set($cv =
$captchaservice.getCaptchaVerifier("defaultImageCaptcha"))
#set($userId = $cv.getUserId($request))
#if($cv.isAnswerCorrect($userId, $answer))
## Do whatever the captcha is protecting
#else
## Show captcha image and ask for answer, submit button redirects to
## same page with answer given as parameter.
#end
isAnswerCorrect throws Exception but in Velocity getCaptchaVerifier
returns a wrapper of the CaptchaVerifier which catches any Exception
and returns false. It also switches null for "" in getUserId.
I have tried to build JCaptcha 2.0 from source but I am unable to as
I use jdk 1.6 which fails with warnings for including com.sun.* classes
Any ideas about what these functions should be named would be great:
getUserId
getCaptchaVerifier
Thanks,
Caleb
Caleb James DeLisle wrote:
I'm assuming you are referring to
$captcha.getServletId($request)
I said getServletId because I couldn't think of a way a request could
yield any other type of id, maybe you can think of one?
I do want to use captchaId for:
$captcha.isAnswerCorrect($servletId, $answer)
the method would look like:
boolean isAnswerCorrect(String captchaId, String answer)
In most implementations the servletId would be used as the captchaId.
On the one hand I feel like getServletId should be a function of the
$captchaservice but as you can see here:
http://www.docjar.com/html/api/com/octo/captcha/module/config/CaptchaModule…
If a configuration is set to ID_GENERATED=true then it uses a different method
(this is the function called by the struts jcaptcha action)
Caleb
Asiri Rathnayake wrote:
Hi Caleb,
On Fri, Jan 15, 2010 at 4:21 PM, Caleb James DeLisle <
calebdelisle(a)lavabit.com> wrote:
May be my above question got commented out on
your mail reader.
Thanks.
- Asiri
_______________________________________________
devs mailing list
devs(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/devs
_______________________________________________
devs mailing list
devs(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/devs
Whoops I made a mistake in my example:
How about:
#set($captcha = $captchaservice.getCaptcha("defaultImageCaptcha"))
#set($servletId = $captcha.getServletId($request))
$captcha.isAnswerCorrect($answer)
should be:
$captcha.isAnswerCorrect($servletId, $answer)
Why is it called servletId? shouldn't it be captchaId? Or may be I have
misunderstood you.
>
$captchaservice.isAnswerCorrect($sessionId, $answer)
> Yes. I believe here sessionId is generated by the captcha service for
each
> captcha displayed? Or is it something else?
>
> I'm asking because recaptcha generates a unque captchaId for each
captcha
it
> generates. Then you need to handover this
captchaId + user's answer to
the
>> server to verify the answer.
6:55 p.m.
New subject: [xwiki-devs] [proposal] Migrating the captcha plugin to a component
Hi,
On Sat, Jan 16, 2010 at 11:21 PM, Caleb James DeLisle <
calebdelisle(a)lavabit.com> wrote:
Update:
I have changed a few things in my copy of the code.
I renamed the Captcha interface CaptchaVerifier because it is
a component for verifying captchas of a certain type, not
an individual captcha puzzle.
I also named the id which is gotten from the request "userId" because
it may be generated on a per-captcha basis and passed by a parameter
depending on jcaptcha settings.
From velocity the commands look like:
#set($cv = $captchaservice.getCaptchaVerifier("defaultImageCaptcha"))
#set($userId = $cv.getUserId($request))
#if($cv.isAnswerCorrect($userId, $answer))
## Do whatever the captcha is protecting
#else
## Show captcha image and ask for answer, submit button redirects to
## same page with answer given as parameter.
#end
isAnswerCorrect throws Exception but in Velocity getCaptchaVerifier
returns a wrapper of the CaptchaVerifier which catches any Exception
and returns false. It also switches null for "" in getUserId.
Sounds great!
Once you commit I'll try to implement a recaptcha version of the
CaptchaVerifier. This will be a good test case :)
PS: I hope I will have enough time ;)
I have tried to build JCaptcha 2.0 from source but I am unable to as
I use jdk 1.6 which fails with warnings for including com.sun.* classes
Any ideas about what these functions should be named would be great:
getUserId
getCaptchaVerifier
I thought getCaptchaId() would make sense in case of recaptcha but
getUserId() might be more generic as you describe.
Thanks.
- Asiri
Thanks,
Caleb
Caleb James DeLisle wrote:
_______________________________________________
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I'm assuming you are referring to
$captcha.getServletId($request)
I said getServletId because I couldn't think of a way a request could
yield any other type of id, maybe you can think of one?
I do want to use captchaId for:
$captcha.isAnswerCorrect($servletId, $answer)
the method would look like:
boolean isAnswerCorrect(String captchaId, String answer)
In most implementations the servletId would be used as the captchaId.
On the one hand I feel like getServletId should be a function of the
$captchaservice but as you can see here:
http://www.docjar.com/html/api/com/octo/captcha/module/config/CaptchaModule…
If a configuration is set to ID_GENERATED=true
then it uses a different
method
(this is the function called by the struts
jcaptcha action)
Caleb
Asiri Rathnayake wrote:
> Hi Caleb,
>
> On Fri, Jan 15, 2010 at 4:21 PM, Caleb James DeLisle <
> calebdelisle(a)lavabit.com> wrote:
>
>> Whoops I made a mistake in my example:
>> How about:
>> #set($captcha = $captchaservice.getCaptcha("defaultImageCaptcha"))
>> #set($servletId = $captcha.getServletId($request))
>> $captcha.isAnswerCorrect($answer)
>>
>> should be:
>>
>> $captcha.isAnswerCorrect($servletId, $answer)
>>
> Why is it called servletId? shouldn't it be captchaId? Or may be I have
> misunderstood you.
>
>>>> $captchaservice.isAnswerCorrect($sessionId, $answer)
>>>> Yes. I believe here sessionId is generated by the captcha service for
>> each
>>>> captcha displayed? Or is it something else?
>>>>
>>>> I'm asking because recaptcha generates a unque captchaId for each
>> captcha it
>>>> generates. Then you need to handover this captchaId + user's answer
to
the
>> server to verify the answer.
May be my above question got commented out on
your mail reader.
Thanks.
- Asiri
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Asiri Rathnayake -
Caleb James DeLisle