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<?php
/**
* @file
* Plugin to provide access control/visibility based on specified context string matching user-specified string
*/
$plugin = array(
'title' => t("String: comparison"),
'description' => t('Control access by string match.'),
'callback' => 'ctools_string_equal_ctools_access_check',
'settings form' => 'ctools_string_equal_ctools_access_settings',
'summary' => 'ctools_string_equal_ctools_access_summary',
'required context' => new ctools_context_required(t('String'), 'string'),
'defaults' => array('operator' => '=', 'value' => '', 'case' => FALSE),
);
/**
* Settings form
*/
function ctools_string_equal_ctools_access_settings($form, &$form_state, $conf) {
$form['settings']['operator'] = array(
'#type' => 'radios',
'#title' => t('Operator'),
'#options' => array(
'=' => t('Equal'),
'!=' => t('Not equal'),
'regex' => t('Regular expression'),
'!regex' => t('Not equal to regular expression'),
),
'#default_value' => $conf['operator'],
'#description' => t('If using a regular expression, you should enclose the pattern in slashes like so: <em>/foo/</em>. If you need to compare against slashes you can use another character to enclose the pattern, such as @. See <a href="http://www.php.net/manual/en/reference.pcre.pattern.syntax.php">PHP regex documentation</a> for more.'),
);
$form['settings']['value'] = array(
'#type' => 'textfield',
'#title' => t('String'),
'#default_value' => $conf['value'],
);
$form['settings']['case'] = array(
'#type' => 'checkbox',
'#title' => t('Case sensitive'),
'#default_value' => $conf['case'],
);
return $form;
}
/**
* Check for access
*/
function ctools_string_equal_ctools_access_check($conf, $context) {
if (empty($context) || empty($context->data)) {
$string = '';
}
else {
$string = $context->data;
}
$value = $conf['value'];
if (empty($conf['case'])) {
$string = drupal_strtolower($string);
$value = drupal_strtolower($value);
}
switch ($conf['operator']) {
case '=':
return $string === $value;
case '!=':
return $string !== $value;
case 'regex':
return preg_match($value, $string);
case '!regex':
return !preg_match($value, $string);
}
}
/**
* Provide a summary description based upon the specified context
*/
function ctools_string_equal_ctools_access_summary($conf, $context) {
$values = array('@identifier' => $context->identifier, '@value' => $conf['value']);
switch ($conf['operator']) {
case '=':
return t('@identifier is "@value"', $values);
case '!=':
return t('@identifier is not "@value"', $values);
case 'regex':
return t('@identifier matches "@value"', $values);
case '!regex':
return t('@identifier does not match "@value"', $values);
}
}
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