Merge branch 'master' of git://factorcode.org/git/factor

db4
Joe Groff 2009-09-16 18:07:55 -05:00
commit 18608cb4bb
6 changed files with 162 additions and 0 deletions

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Doug Coleman

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! Copyright (C) 2009 Doug Coleman.
! See http://factorcode.org/license.txt for BSD license.
USING: help.markup help.syntax http.server.filters kernel
multiline furnace.actions ;
IN: furnace.chloe-tags.recaptcha
HELP: <recaptcha>
{ $values
{ "responder" "a responder" }
{ "obj" object }
}
{ $description "A " { $link filter-responder } " wrapping another responder. Set the domain, public, and private keys using the key you get by registering with Recaptcha." } ;
HELP: recaptcha-error
{ $var-description "Set to the error string returned by the Recaptcha server." } ;
HELP: recaptcha-valid?
{ $var-description "Set to " { $link t } " if the user solved the last Recaptcha correctly." } ;
HELP: validate-recaptcha
{ $description "Validates a Recaptcha using the Recaptcha web service API." } ;
ARTICLE: "recaptcha-example" "Recaptcha example"
"There are several steps to using the Recaptcha library."
{ $list
{ "Wrap the responder in a " { $link <recaptcha> } }
{ "Add a handler calling " { $link validate-recaptcha } " in the " { $slot "submit" } " of the " { $link page-action } }
{ "Put the chloe tag " { $snippet "<recaptcha/>" } " in the template for your " { $link action } }
}
"An example follows:"
{ $code
HEREDOC: RECAPTCHA-TUTORIAL
TUPLE: recaptcha-app < dispatcher recaptcha ;
: <recaptcha-challenge> ( -- obj )
<action>
[
validate-recaptcha
recaptcha-valid? get "?good" "?bad" ? <redirect>
] >>submit
[
<response>
{" <?xml version='1.0' ?>
<t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
<html><body><t:recaptcha/></body></html>
</t:chloe>"} >>body
] >>display ;
: <recaptcha-app> ( -- obj )
\ recaptcha-app new-dispatcher
<recaptcha-challenge> "" add-responder
<recaptcha>
"concatenative.org" >>domain
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" >>public-key
"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb" >>private-key ;
<recaptcha-app> main-responder set-global
RECAPTCHA-TUTORIAL
}
;
ARTICLE: "furnace.chloe-tags.recaptcha" "Recaptcha chloe tag"
"The " { $vocab-link "furnace.chloe-tags.recaptcha" } " vocabulary implements support for the Recaptcha. Recaptcha is a web service that provides the user with a captcha, a test that is easy to solve by visual inspection, but hard to solve by writing a computer program. Use a captcha to protect forms from abusive users." $nl
"The recaptcha responder is a " { $link filter-responder } " that wraps another responder. Set the " { $slot "domain" } ", " { $slot "public-key" } ", and " { $slot "private-key" } " slots of this responder to your Recaptcha account information." $nl
"Wrapping a responder with Recaptcha:"
{ $subsection <recaptcha> }
"Validating recaptcha:"
{ $subsection validate-recaptcha }
"Symbols set after validation:"
{ $subsection recaptcha-valid? }
{ $subsection recaptcha-error }
{ $subsection "recaptcha-example" } ;
ABOUT: "furnace.chloe-tags.recaptcha"

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! Copyright (C) 2009 Doug Coleman.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors furnace.actions furnace.redirection html.forms
html.templates.chloe.compiler html.templates.chloe.syntax
http.client http.server http.server.filters io.sockets kernel
locals namespaces sequences splitting urls validators
xml.syntax ;
IN: furnace.chloe-tags.recaptcha
TUPLE: recaptcha < filter-responder domain public-key private-key ;
SYMBOLS: recaptcha-valid? recaptcha-error ;
: <recaptcha> ( responder -- obj )
recaptcha new
swap >>responder ;
M: recaptcha call-responder*
dup \ recaptcha set
responder>> call-responder ;
<PRIVATE
: (render-recaptcha) ( private-key -- xml )
dup
[XML <script type="text/javascript"
src=<->>
</script>
<noscript>
<iframe src=<->
height="300" width="500" frameborder="0"></iframe><br/>
<textarea name="recaptcha_challenge_field" rows="3" cols="40">
</textarea>
<input type="hidden" name="recaptcha_response_field"
value="manual_challenge"/>
</noscript>
XML] ;
: recaptcha-url ( secure? -- ? )
[ "https://api.recaptcha.net/challenge" >url ]
[ "http://api.recaptcha.net/challenge" >url ] if ;
: render-recaptcha ( -- xml )
secure-connection? recaptcha-url
recaptcha get public-key>> "k" set-query-param (render-recaptcha) ;
: parse-recaptcha-response ( string -- valid? error )
"\n" split first2 [ "true" = ] dip ;
:: (validate-recaptcha) ( challenge response recaptcha -- valid? error )
recaptcha private-key>> :> private-key
remote-address get host>> :> remote-ip
H{
{ "challenge" challenge }
{ "response" response }
{ "privatekey" private-key }
{ "remoteip" remote-ip }
} URL" http://api-verify.recaptcha.net/verify"
<post-request> http-request nip parse-recaptcha-response ;
CHLOE: recaptcha
drop [ render-recaptcha ] [xml-code] ;
PRIVATE>
: validate-recaptcha ( -- )
{
{ "recaptcha_challenge_field" [ v-required ] }
{ "recaptcha_response_field" [ v-required ] }
} validate-params
"recaptcha_challenge_field" value
"recaptcha_response_field" value
\ recaptcha get (validate-recaptcha)
[ recaptcha-valid? set ] [ recaptcha-error set ] bi* ;

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<?xml version='1.0' ?>
<t:chloe xmlns:t="http://factorcode.org/chloe/1.0">
<html>
<body><t:recaptcha/>
</body>
</html>
</t:chloe>

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Recaptcha library

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web