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<?php |
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namespace Signify\EnvBar\Extensions; |
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use SilverStripe\Control\Director; |
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use SilverStripe\ORM\DataExtension; |
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use SilverStripe\ORM\FieldType\DBHTMLText; |
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use SilverStripe\Security\Permission; |
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use SilverStripe\Security\Security; |
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use SilverStripe\Versioned\Versioned; |
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use SilverStripe\View\Requirements; |
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/** |
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* EnvBarExtension |
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* |
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* This class extends the @see SilverStripe\CMS\Controllers\ContentController |
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* class. |
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* |
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* It contains methods to check the environment type, page status (versioning) |
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* and user access (member permissions) and returns values to populate the |
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* EnvBar. |
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* |
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* It also contains methods to modify the @see SilverStripe\Control\HTTPResponse |
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* before and after the @see SilverStripe\Control\RequestHandler |
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* inserting the CSS and HTML required to produce the EnvBar. |
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* |
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* @package Signify\EnvBar\Extensions |
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* @author Lani Field <[email protected]> |
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* @version 1.0.1 |
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* |
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* @param \SilverStripe\Control\HTTPRequest $request |
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* @return \SilverStripe\Control\HTTPResponse $result |
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* with the EnvBar CSS and HTML inserted. |
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*/ |
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class EnvBarExtension extends DataExtension |
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{ |
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/** |
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* Load the CSS requirement. |
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* |
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* @param \SilverStripe\Control\HTTPRequest $request |
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* @param string $action |
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* @return void |
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* @see SilverStripe\Control\RequestHandler::handleAction |
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*/ |
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public function beforeCallActionHandler($request, $action) |
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{ |
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Requirements::css('signify-nz/silverstripe-environmentindicator:client/dist/css/envbar.css'); |
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} |
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/** |
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* Rewrite the HTML of the viewed page to insert the EnvBar. |
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* |
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* @param \SilverStripe\Control\HTTPRequest $request |
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* @param string $action |
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* @param \SilverStripe\ORM\FieldType\DBHTMLText $result |
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* from the original RequestHandler |
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* @return \SilverStripe\ORM\FieldType\DBHTMLText $result |
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* with the EnvBar HTML inserted |
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* @see SilverStripe\Control\RequestHandler::handleAction |
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*/ |
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public function afterCallActionHandler($request, $action, $result) |
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{ |
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if (!($result instanceof DBHTMLText)) { |
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return $result; |
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} |
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$html = $result->getValue(); |
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$envBar = $this->generateEnvBar()->getValue(); |
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$html = preg_replace( |
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'/(<body[^>]*>)/i', |
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'\\1' . $envBar, |
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$html |
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); |
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$result->setValue($html); |
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return $result; |
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} |
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/** |
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* Check the environment type. |
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* |
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* @return string |
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* "dev" if the site is in dev mode, |
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* "test" if the site is in test mode (e.g. QA or UAT), |
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* "live" otherwise (e.g. Production) |
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*/ |
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public function getEnvironment() |
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{ |
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if (Director::isDev()) { |
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return 'dev'; |
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} elseif (Director::isTest()) { |
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return 'test'; |
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} else { |
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return 'live'; |
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} |
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} |
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/** |
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* Check the version of the page being viewed. |
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* |
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* @return string |
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* "published" if it is the current live version in this environment, |
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* "draft" if it is a modified or unpublished version, |
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* "not staged" otherwise |
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*/ |
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public function getPageStatus() |
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{ |
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if (Versioned::get_stage() === 'Live') { |
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return 'published'; |
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} elseif (Versioned::get_stage() === 'Stage') { |
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return 'draft'; |
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} else { |
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return 'not staged'; |
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} |
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} |
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/** |
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* Check whether CurrentUser has access to edit pages. |
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* |
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* @return boolean |
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* "true" if the user can edit pages, |
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* "false" otherwise |
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*/ |
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public function getCanAccess() |
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{ |
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$member = Security::getCurrentUser(); |
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if (Permission::checkMember($member, 'CMS_ACCESS_CMSMain')) { |
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return true; |
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} else { |
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return false; |
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} |
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} |
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/** |
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* Generate the HTML to inject using the EnvBar.ss template. |
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* |
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* @return \SilverStripe\ORM\FieldType\DBHTMLText |
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*/ |
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private function generateEnvBar() |
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{ |
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return $this->owner->renderWith('EnvBar'); |
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} |
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} |
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This check looks for parameters that have been defined for a function or method, but which are not used in the method body.