xNightR00T File Manager

<?php

namespace DevBar\View\Helper;

use Zend\View\Helper\AbstractHelper;

class ZrayInject extends AbstractHelper
{
    protected $pageId   = '';
    protected $jsLoaded = false;
    protected $zendserverUiUrl = '';
    protected $error    = '';

    public function __invoke($pageId, $requestsSeparated = false,$zendserverUiUrl = '')
    {
        $this->pageId = $pageId;
        $this->zendserverUiUrl = $zendserverUiUrl;

        if (($output = $this->getZrayContent($requestsSeparated)) !== false) {
            if (!$this->jsLoaded) {
                $output         .= $this->getJavascript();
                $this->jsLoaded = true;
            }
            return $output;
        } else {
            return $this->error;
        }
    }

    /**
     * Load devbar_footer.html file and replace the placeholders. add "ZrayAllRequests" parameter
     * @return array
     */
    protected function getZrayContent($requestsSeparated = false)
    {
        $this->error = '';
        $zrayContent = array();

        // locate footer script
        $footerScript = $this->getZendInstallDir().DIRECTORY_SEPARATOR.'share'.DIRECTORY_SEPARATOR.'scripts'.DIRECTORY_SEPARATOR.'devbar_footer.html';
        $footerScript = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $footerScript);
        if (!file_exists($footerScript)) {
            $this->error = 'Z-Ray script "'.$footerScript.'" was not found';
            return false;
        }

        // take footer script content
        $footerContent = file_get_contents($footerScript);
        if ($footerContent === false) {
            $this->error = 'Cannot read Z-Ray script "'.$footerScript.'"';
            return false;
        }

        // replace the placeholders within the footer scripts
        $footerContent = str_replace('$(ZENDSERVER_UI)', $this->getServerUrl(), $footerContent);
        $footerContent = str_replace('$(DEVBAR_PAGE_ID)', ($this->pageId ? $this->pageId : ''), $footerContent);
        $footerContent = str_replace('$(DEVBAR_ACCESS_TOKEN)', '', $footerContent);
        $footerContent = str_replace('Z-Ray/iframe?', 'Z-Ray/iframe?embedded=1&', $footerContent);
        if (empty($this->pageId)) {
            $footerContent = str_replace('Z-Ray/iframe?', 'Z-Ray/iframe?ZRayAllRequests=1&', $footerContent);
        }
        if ($requestsSeparated) {
            $footerContent = str_replace('Z-Ray/iframe?', 'Z-Ray/iframe?requestsSeparated=1&', $footerContent);
        }

        return $footerContent;
    }

    /**
     * Get ZS installation DIR
     * @return string
     */
    protected function getZendInstallDir()
    {
        return getCfgVar('zend.install_dir');
    }

    protected function getJavascript()
    {
        $js = "
		<script>
		
		(function() {				
			// put the iframe at the same level
			document.querySelector('#zend-dev-bar-iframe').style.zIndex = 0;
			
				
			document.querySelector('body').style.paddingBottom = 0;
	
			// call callbackFn when iframe is injected and ready
			// (the function can be called several times, the callback is appended)
			
			var whenIframeLoads = (function() {
				var callbacks = [];
					
				var theFunction = function(callbackFn) {
					var iframe = document.querySelector('#zend-dev-bar-iframe iframe');
					
					if (!iframe) {
						setTimeout(function() {
							theFunction(callbackFn);
						}, 20);
					} else {
						//iframe.style.width = 'calc(100% - 160px)';
						if (typeof(callbackFn) == 'function') {
							callbacks.push(callbackFn);
						}
					
						callbacks.forEach(function(_callbackFn) {
							_callbackFn(iframe);
						});
					}
				};
					
				return theFunction;
			})();
		
		";

        // add "loading" text, when no page id supplied
        if (empty($this->pageId)) {
            $waitingText = _t('Waiting for incoming requests');
            $js          .= "
			
			// add `recording` icon when iframe loads
			whenIframeLoads(function(iframe) {
				// create the icon
				var recIconWrapper = document.createElement('div');
				recIconWrapper.setAttribute('class', 'zdb-waiting-requests-wrapper');
				recIconWrapper.innerHTML = '<h2 title=\"$waitingText\">$waitingText</h2>';
			
				// add it to z-ray when it loads
				iframe.addEventListener('load', function() {
					var zendDevBarElem = iframe.contentWindow.document.getElementById('zend-dev-bar');
					zendDevBarElem.parentNode.insertBefore(recIconWrapper, zendDevBarElem);
				});
			});
			";
        }

        $js .= '})();</script>';
        return $js;
    }

    /**
     * Get zray server url
     * @return string
     */
    protected function getServerUrl(){
       
       $url = $this->zendserverUiUrl;
       if(empty($url)){
           $url = $this->getView()->serverUrl().'/ZendServer';
       }
       return $url;
    }
}