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Overriding @@captcha view in collective.captcha

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Mikel Larreategi () Overriding @@captcha view in collective.captcha
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Hi:

We are using collective.captcha 1.3 in production in some Plone 2.5.5
sites and we had to add an override of the browser view
collective.captcha adds in its browser/configure.zcml.

After adding collective.captcha in the eggs and zcml section of our
buildout, and adding the captcha showing snippet in the page template as
follows:

  <p tal:replace="structure here/@@captcha/image_tag" />

We got the following error in our zope instance::

2008-12-12 15:25:42 ERROR Zope.SiteErrorLog
http://dantzan.cs/albisteak/dancilla-youtubera-heldu-da/newsitem_view
Traceback (innermost last):
   Module ZPublisher.Publish, line 115, in publish
   Module ZPublisher.mapply, line 88, in mapply
   Module ZPublisher.Publish, line 41, in call_object
   Module Shared.DC.Scripts.Bindings, line 311, in __call__
   Module Shared.DC.Scripts.Bindings, line 348, in _bindAndExec
   Module Products.CMFCore.FSPageTemplate, line 195, in _exec
   Module Products.CacheSetup.patch_cmf, line 28, in FSPT_pt_render
   Module Products.CacheSetup.patch_utils, line 9, in call_pattern
   Module Products.CMFCore.FSPageTemplate, line 134, in pt_render
   Module Products.CacheSetup.patch_cmf, line 74, in PT_pt_render
   Module Products.CacheSetup.patch_utils, line 9, in call_pattern
   Module Products.PageTemplates.PageTemplate, line 104, in pt_render
    - <FSPageTemplate at /plone2/newsitem_view used for
/plone2/albisteak/dancilla-youtubera-heldu-da>
   Module TAL.TALInterpreter, line 238, in __call__
   Module TAL.TALInterpreter, line 281, in interpret
   Module TAL.TALInterpreter, line 749, in do_useMacro
   Module TAL.TALInterpreter, line 281, in interpret
   Module TAL.TALInterpreter, line 457, in do_optTag_tal
   Module TAL.TALInterpreter, line 442, in do_optTag
   Module TAL.TALInterpreter, line 437, in no_tag
   Module TAL.TALInterpreter, line 281, in interpret
   Module TAL.TALInterpreter, line 780, in do_defineSlot
   Module TAL.TALInterpreter, line 281, in interpret
   Module TAL.TALInterpreter, line 457, in do_optTag_tal
   Module TAL.TALInterpreter, line 442, in do_optTag
   Module TAL.TALInterpreter, line 437, in no_tag
   Module TAL.TALInterpreter, line 281, in interpret
   Module TAL.TALInterpreter, line 728, in do_defineMacro
   Module TAL.TALInterpreter, line 281, in interpret
   Module TAL.TALInterpreter, line 772, in do_defineSlot
   Module TAL.TALInterpreter, line 281, in interpret
   Module TAL.TALInterpreter, line 728, in do_defineMacro
   Module TAL.TALInterpreter, line 281, in interpret
   Module TAL.TALInterpreter, line 457, in do_optTag_tal
   Module TAL.TALInterpreter, line 442, in do_optTag
   Module TAL.TALInterpreter, line 437, in no_tag
   Module TAL.TALInterpreter, line 281, in interpret
   Module TAL.TALInterpreter, line 749, in do_useMacro
   Module TAL.TALInterpreter, line 281, in interpret
   Module TAL.TALInterpreter, line 715, in do_condition
   Module TAL.TALInterpreter, line 281, in interpret
   Module TAL.TALInterpreter, line 715, in do_condition
   Module TAL.TALInterpreter, line 281, in interpret
   Module TAL.TALInterpreter, line 455, in do_optTag_tal
   Module TAL.TALInterpreter, line 437, in no_tag
   Module TAL.TALInterpreter, line 281, in interpret
   Module TAL.TALInterpreter, line 749, in do_useMacro
   Module TAL.TALInterpreter, line 281, in interpret
   Module TAL.TALInterpreter, line 647, in do_insertStructure_tal
   Module Products.PageTemplates.TALES, line 221, in evaluate
    - URL: file:csDantzan/skins/dantzan_templates/captcha_widget.pt
    - Line 22, Column 6
    - Expression: standard:'here/@@captcha/image_tag'
    - Names:
       {'container': <PloneSite at /plone2>,
        'context': <ATNewsItem at
/plone2/albisteak/dancilla-youtubera-heldu-da>,
        'default': <Products.PageTemplates.TALES.Default instance at
0xb70818ec>,
        'here': <ATNewsItem at
/plone2/albisteak/dancilla-youtubera-heldu-da>,
        'loop': <Products.PageTemplates.TALES.SafeMapping object at
0x106230ac>,
        'modules':
<Products.PageTemplates.ZRPythonExpr._SecureModuleImporter instance at
0xb70ab0ec>,
        'nothing': None,
        'options': {'args': ()},
        'repeat': <Products.PageTemplates.TALES.SafeMapping object at
0x106230ac>,
        'request': <HTTPRequest,
URL=http://dantzan.cs/albisteak/dancilla-youtubera-heldu-da/newsitem_view>,
        'root': <Application at >,
        'template': <FSPageTemplate at /plone2/newsitem_view used for
/plone2/albisteak/dancilla-youtubera-heldu-da>,
        'traverse_subpath': [],
        'user': <PropertiedUser 'erral'>}
   Module Products.PageTemplates.Expressions, line 185, in __call__
   Module Products.PageTemplates.Expressions, line 173, in _eval
   Module Products.PageTemplates.Expressions, line 127, in _eval
    - __traceback_info__: here
   Module Products.PageTemplates.Expressions, line 313, in
restrictedTraverse
    - __traceback_info__: {'path': ['@@captcha', 'image_tag'],
'TraversalRequestNameStack': []}
Unauthorized: You are not allowed to access 'image_tag' in this context




We had to add an overrides.zcml file to our product and there, add the
following ZCML snippet:

   <browser:page
       name="captcha"
       for="*"
       permission="zope2.Public"
 
allowed_interface="collective.captcha.browser.interfaces.ICaptchaView"
       class="collective.captcha.browser.captcha.Captcha"
       />


Now the captcha view works as expected and the image is shown in the
template.

Is this a bug or something that just happens with our configuration?

Our product versions:
Plone 2.5.5,
CMF-1.6.4,
Zope (Zope 2.9.8-final, python 2.4.5, linux2),
Five 1.4.2,
Python 2.4.5 (#2, Aug 1 2008, 02:20:59) [GCC 4.3.1],
PIL 1.1.6

Best regards,


Mikel Larreategi



--
Mikel Larreategi
[hidden email]

CodeSyntax
Azitaingo Industrialdea 3 K
E-20600 Eibar
Tel: (+34) 943 82 17 80


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sonu205 () Re: Overriding @@captcha view in collective.captcha
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Hi,

I am using Plone 3.2.2. I have installed the collective.captcha using buildout, installed successfully.

But I am not able to see this in the Add/Remove product under the control panel.

Now as per the instruction given here http://www.codesyntax.com/cs-workshop/blog/using-collective.captcha-in-custom-forms, I did all the steps. When I submit my Join Form,  where I have added the captach, it takes me to login page and there is no error.

If I add the overrides.zcml in my product with the following lines

 <browser:page
    name="captcha"
    for="*"
    permission="zope2.Public"
    allowed_interface="collective.captcha.browser.interfaces.ICaptchaView"
    class="collective.captcha.browser.captcha.Captcha"
    />

I get this error on all plone sites after restarting plone:

Site Error

An error was encountered while publishing this resource.

TraversalError
Sorry, a site error occurred.

Traceback (innermost last):

    * Module ZPublisher.Publish, line 202, in publish_module_standard
    * Module Products.LinguaPlone.patches, line 67, in new_publish
    * Module ZPublisher.Publish, line 150, in publish
    * Module Zope2.App.startup, line 221, in zpublisher_exception_hook
    * Module ZPublisher.Publish, line 119, in publish
    * Module ZPublisher.mapply, line 88, in mapply
    * Module ZPublisher.Publish, line 42, in call_object
    * Module Shared.DC.Scripts.Bindings, line 313, in __call__
    * Module Shared.DC.Scripts.Bindings, line 350, in _bindAndExec
    * Module Products.CMFCore.FSPageTemplate, line 216, in _exec
    * Module Products.CMFCore.FSPageTemplate, line 155, in pt_render
    * Module Products.Gloworm, line 28, in pt_render
    * Module zope.pagetemplate.pagetemplate, line 117, in pt_render
      Warning: Macro expansion failed
      Warning: zope.traversing.interfaces.TraversalError: ('No traversable adapter found', {u'master': [('version', '1.6'), ('mode', 'html'), ('setPosition', (1, 0)), ('setSourceFile', 'file:d:\\plone\\buildout-cache\\eggs\\plone-3.2.2-py2.4.egg\\Products\\CMFPlone\\skins\\plone_prefs\\prefs_main_template.pt'), ('beginScope', {u'define-macro': u'master'}), ('optTag', (u'metal:page', None, 'metal', 0, [('startTag', (u'metal:page', [(u'define-macro', u'master', 'metal')]))], [('rawtextColumn', (u'\n ', 2)), ('setPosition', (2, 2)), ('useMacro', (u'here/main_template/macros/master', <PathExpr standard:u'here/main_template/macros/master'>, {u'top_slot': [('setPosition', (4, 4)), ('setSourceFile', 'file:d:\\plone\\buildout-cache\\eggs\\plone-3.2.2-py2.4.egg\\Products\\CMFPlone\\skins\\plone_prefs\\prefs_main_template.pt'), ('beginScope', {u'tal:define': u"dummy python:request.set('disable_border',1)", u'fill-slot': u'top_slot'}), ('setLocal', (u'dummy', <PythonExpr request.set('disable_border',1)>)), ('optTag', (u'metal:block', None, 'metal', 1, [('startEndTag', (u'metal:block', [(u'fill-slot', u'top_slot', 'metal'), (u'tal:define', u"dummy python:request.set('disable_border',1)", 'tal')]))], [])), ('endScope', ())], u'column_one_slot': [('setPosition', (7, 4)), ('setSourceFile', 'file:d:\\plone\\buildout-cache\\eggs\\plone-3.2.2-py2.4.egg\\Products\\CMFPlone\\skins\\plone_prefs\\prefs_main_template.pt'), ('beginScope', {u'fill-slot': u'column_one_slot'}), ('optTag', (u'metal:override', None, 'metal', 0, [('startTag', (u'metal:override', [(u'fill-slot', u'column_one_slot', 'metal')]))], [('rawtextColumn', (u'\n ', 8)), ('setPosition', (8, 8)), ('defineSlot', (u'column_one_slot', [('beginScope', {u'define-slot': u'column_one_slot'}), ('optTag', (u'metal:override', None, 'metal', 0, [('startTag', (u'metal:override', [(u'define-slot', u'column_one_slot', 'metal')]))], [('rawtextColumn', (u'\n ', 12)), ('setPosition', (9, 12)), ('useMacro', (u'here/portlet_prefs/macros/portlet', <PathExpr standard:u'here/portlet_prefs/macros/portlet'





Please help!

Thanks,
Sonu
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