feat(public-forms) Add support for captcha using securimage

Path needs to be specified in the configuration.
Only works if installed in html/ for now, maybe we’ll have to add an
 second configuration option for the base URI.
Captcha validation does not seem to work, maybe a session problem.
CSS or smarty template will need to be adapted, the captcha image is not
 aligned correctly.

issue #6001

public-forms/admin/public-forms/class_publicForm.inc

@@ -90,6 +90,11 @@ class publicForm extends simplePlugin
             _('TOS URL'), _('Terms of service URL. If filled, this adds a mandatory checkbox to agree to the terms at this URL.'),
             'fdPublicFormTosUrl', FALSE
           ),
+          new BooleanAttribute(
+            _('Captcha'), _('Add a captcha to the form'),
+            'fdPublicFormCaptcha', FALSE,
+            FALSE
+          ),
         ]
       ],
     ];
@@ -97,6 +102,8 @@ class publicForm extends simplePlugin
 
   function __construct ($dn = NULL, $object = NULL, $parent = NULL, $mainTab = FALSE, $attributesInfo = NULL)
   {
+    global $config;
+
     if ($attributesInfo === NULL) {
       $attributesInfo = $this->getAttributesInfo();
     }
@@ -111,6 +118,12 @@ class publicForm extends simplePlugin
 
     $this->typeChanged();
     $this->attributesAccess['fdPublicFormTemplateType']->setSubmitForm('typeChanged');
+
+    if ($config->get_cfg_value('PublicFormSecurimagePath', '') == '') {
+      $this->attributesAccess['fdPublicFormCaptcha']->setDisabled(TRUE);
+      $this->attributesAccess['fdPublicFormCaptcha']->setValue(FALSE);
+      $this->attributesAccess['fdPublicFormCaptcha']->setVisible(FALSE);
+    }
   }
 
   function typeChanged ()

public-forms/config/public-forms/class_publicFormsConfig.inc

@@ -44,6 +44,10 @@ class publicFormsConfig extends simplePlugin
             'fdPublicFormRDN', TRUE,
             'ou=forms'
           ),
+          new StringAttribute(
+            _('Securimage path'), _('If you wish to use captchas in your forms, you need to install securimage'),
+            'fdPublicFormSecurimagePath', FALSE
+          ),
         ]
       ],
     ];

public-forms/contrib/openldap/public-forms-fd-conf.schema

@@ -10,9 +10,16 @@ attributetype ( 1.3.6.1.4.1.38414.68.1.1 NAME 'fdPublicFormRDN'
   SYNTAX 1.3.6.1.4.1.1466.115.121.1.26
   SINGLE-VALUE)
 
+attributetype ( 1.3.6.1.4.1.38414.68.1.2 NAME 'fdPublicFormSecurimagePath'
+  DESC 'FusionDirectory - Public forms securimage path'
+  EQUALITY caseExactIA5Match
+  SUBSTR caseExactIA5SubstringsMatch
+  SYNTAX 1.3.6.1.4.1.1466.115.121.1.26
+  SINGLE-VALUE)
+
 # Object Class
 objectclass ( 1.3.6.1.4.1.38414.68.2.1 NAME 'fdPublicFormsPluginConf'
   DESC 'FusionDirectory - Public forms plugin configuration'
   SUP top AUXILIARY
   MUST ( cn )
-  MAY ( fdPublicFormRDN ) )
+  MAY ( fdPublicFormRDN $ fdPublicFormSecurimagePath ) )

public-forms/contrib/openldap/public-forms-fd.schema

@@ -66,6 +66,12 @@ attributetype ( 1.3.6.1.4.1.38414.67.10.9 NAME 'fdPublicFormTosUrl'
   SUBSTR caseExactSubstringsMatch
   SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
 
+attributetype ( 1.3.6.1.4.1.38414.67.10.10 NAME 'fdPublicFormCaptcha'
+  DESC 'FusionDirectory - Whether this form should contain a captcha'
+  EQUALITY booleanMatch
+  SYNTAX 1.3.6.1.4.1.1466.115.121.1.7
+  SINGLE-VALUE )
+
 # Objectclasses
 
 objectclass ( 1.3.6.1.4.1.38414.67.2.1 NAME 'fdPublicForm'
@@ -75,4 +81,4 @@ objectclass ( 1.3.6.1.4.1.38414.67.2.1 NAME 'fdPublicForm'
     fdPublicFormTitle $ fdPublicFormText $
     fdPublicFormTemplateType $ fdPublicFormTemplateDN $
     fdPublicFormFinalText $ fdPublicFormPrivate $ fdPublicFormCreationBase $
-    fdPublicFormAlteredAttributes $ fdPublicFormTosUrl ) )
+    fdPublicFormAlteredAttributes $ fdPublicFormTosUrl $ fdPublicFormCaptcha ) )

public-forms/ihtml/themes/breezy/public-form.tpl

@@ -35,6 +35,9 @@
           {if (!$done and $form.fdPublicFormTosUrl)}
             <label for="tosCheckBox"><input type="checkbox" id="tosCheckBox" name="tosCheckBox"/> {t 1=$form.fdPublicFormTosUrl escape=no}I agree to the <a target="_blank" href="%1">terms of service</a>{/t}</label>
           {/if}
+          {if (!$done and $captcha)}
+            {$captcha}
+          {/if}
         </div>
         {if !$done}
         <div id="window-footer" class="plugbottom">

public-forms/include/class_publicFormPage.inc

@@ -120,6 +120,7 @@ class publicFormPage extends standAlonePage
           'fdPublicFormPrivate'           => 1,
           'fdPublicFormCreationBase'      => 1,
           'fdPublicFormTosUrl'            => 1,
+          'fdPublicFormCaptcha'           => 1,
           'fdPublicFormAlteredAttributes' => '*',
         ],
         $this->invitation['fdInvitationFormDN'],
@@ -141,6 +142,7 @@ class publicFormPage extends standAlonePage
           'fdPublicFormPrivate'           => 1,
           'fdPublicFormCreationBase'      => 1,
           'fdPublicFormTosUrl'            => 1,
+          'fdPublicFormCaptcha'           => 1,
           'fdPublicFormAlteredAttributes' => '*',
         ],
         NULL,
@@ -219,6 +221,16 @@ class publicFormPage extends standAlonePage
   {
     global $config, $ui;
 
+    /* Check Captcha */
+    if (isset($this->form['fdPublicFormCaptcha']) && ($this->form['fdPublicFormCaptcha'] == 'TRUE')) {
+      require_once($config->get_cfg_value('PublicFormSecurimagePath'));
+      $securimage = new Securimage();
+      if (!$securimage->check($_POST['captcha_code'])) {
+        msg_dialog::display(_('Error'), _('Captcha code was wrong!'), ERROR_DIALOG);
+        return;
+      }
+    }
+
     /* Check TOS checkbox */
     if (isset($this->form['fdPublicFormTosUrl']) && !isset($_POST['tosCheckBox'])) {
       msg_dialog::display(_('Error'), _('You need to accept the terms of service to continue!'), ERROR_DIALOG);
@@ -307,6 +319,8 @@ class publicFormPage extends standAlonePage
 
   function execute ()
   {
+    global $config;
+
     if (!$this->activated) {
       return;
     }
@@ -321,6 +335,11 @@ class publicFormPage extends standAlonePage
       $templateOutput = $this->template->execute();
       // TODO - Check that no dialogs are opened?
       $smarty->assign('template_dialog', $templateOutput);
+
+      if (isset($this->form['fdPublicFormCaptcha']) && ($this->form['fdPublicFormCaptcha'] == 'TRUE')) {
+        require_once($config->get_cfg_value('PublicFormSecurimagePath'));
+        $smarty->assign('captcha', Securimage::getCaptchaHtml(['securimage_path' => 'securimage/']));
+      }
     }
 
     $smarty->assign('done',         $this->done);