efreed/doxygen_integration

## doxygen_integration
<?php
/**
 * Plugin Name: DoxyGen Integration
 * Plugin URI: http://www.fivetalent.com/
 * Description: Enables shortcodes to embed a doxygen site into a page
 * Version: 1.0
 * Author: Eric Freed / Five Talent
 */


// Insert HTML content into post
add_shortcode('doxygen_site', 'doxygen_site');
function doxygen_site($params, $content){
	if (isset($params['output']) && $params['output'] == 'blank') {
		return '';
	}
	$out = '';
	$z = new ZipArchive();
	$bottomstyle = <<<HTML
	<style>
	.nav-head { padding:0; }
	#titlearea {
		height: 170px;
		padding-top: 20px;
	}

	#nav-tree {
		background-color: inherit;
	}
	#nav-tree a { color: white; }
	#nav-tree a:hover { background-color: #E21D1A; }
	#nav-tree, #nav-tree .selected {
		background-image: none;
	}
	#nav-tree .selected {
		background-color: #E21D1A;
	}
	</style>
HTML;
	$topstyle = <<<HTML
	<style>
	#content { width:100% }
	#header { width: 250px; padding: 10px 5px; }

	#menu-main-navigation {
		max-height: 210px;
		overflow: hidden;
	}

	.contents { margin-left:262px; }
	@media screen and (max-width: 767px) {
		#side-nav, #nav-tree, #MSearchBox {
			display: none;
		}
		.contents {
			margin-left:0;
		}
	}
	</style>
HTML;
	$script = <<<HTML
	<script type="text/javascript">
	// Move the location of the nav bar
	var navplaceholder = jQuery("#side-nav").html();
	jQuery("#nav-tree").remove();
	jQuery("#header").append(navplaceholder);

	//
	function initResizable() {}
	var resizeHeight = 0;

	jQuery(function() {
		// Remove all but the first 4 items in mobile menu
		jQuery("#header select option:gt(4)").remove();
		// Remove all but the first 4 items in left nav menu
		jQuery("#menu-main-navigation li:gt(4)").remove();
		// Copy nav items into the mobile menu
		jQuery.each(NAVTREE[0][2],function(){
			var item = '<option value="' + this[1] + '">' + this[0] + '</option>';
			if (jQuery.isArray(this[2])) {
				jQuery.each(this[2], function(){
					item += '<option value="' + this[1] + '"> -- ' + this[0] + '</option>';
				});
			}
			jQuery("#header select").append(item);
		});
	});

	</script>
HTML;
	if ($z->open(ABSPATH . $params['file']) === TRUE) {
		$path = explode('/', substr($_SERVER['REQUEST_URI'], 1)); //remove intial "/" and build into an array
		array_shift($path); // drop off the 'documentation/' prefix
		array_shift($path); // drop off the page name part
		$file = implode('/', $path);
		if (empty($file)) {
			$file = 'index.html';
		}
		$html = $z->getFromName($file);
		$z->close();

		//$pos = strpos($html, '<script type="text/javascript">');
		//if ($pos !== false) {
		//	$html = substr_replace($html, $head, $pos, 0); //insert our head code
		//}
		$html = str_replace('<!--topcssflag-->', $topstyle, $html);
		$html = str_replace('<!--jsflag-->', $script, $html);
		$html = str_replace('<!--bottomcssflag-->', $bottomstyle, $html);

		$html = str_replace('resize.js','',$html);
		$out .= $html;
	} else {
		$out .= ABSPATH . $params['file'] . ' Could not load. ';
		$out .= (file_exists(ABSPATH . $file))?'It does exist':'It does not exist';
	}

	return $out;
}

// To make possible the rewrite rule with extra elements after a page name, need to disable redirect_canonical
add_filter('redirect_canonical', 'doxygen_canonical_exclude');
add_filter('wpseo_canonical', 'doxygen_canonical_exclude'); // should be needed if Yoast is installed
function doxygen_canonical_exclude($canonical) {
	if (strpos($_SERVER['REQUEST_URI'],'/documentation')===0 &&
	    strpos($_SERVER['REQUEST_URI'],'/search/')===false && // Search ajax support
	    substr_count($_SERVER['REQUEST_URI'],'/')>2 // Let /documentation/page redirect to the trailing /
	   ) {
		$canonical = false;
	}
	return $canonical;
}

// Define rewrite rules
add_action('init','doxygen_readfile_init');
function doxygen_readfile_init() {
	add_rewrite_rule('documentation/([^/]+)/(search/.+|.+[^l])$', 'wp-admin/admin-ajax.php?action=doxygen_readfile', 'top');
	add_rewrite_rule('(documentation/[^/]+)/.+l$', 'index.php?pagename=$matches[1]', 'top');
}
//register_activation_hook(__FILE__, 'doxygen_flush_rewrite');
//register_deactivation_hook(__FILE__, 'doxygen_flush_rewrite');
function doxygen_flush_rewrite() {
	flush_rewrite_rules(true);
}

// Enable reading of asset files
add_action('wp_ajax_doxygen_readfile', 'doxygen_readfile'); // for logged-in admins
add_action('wp_ajax_nopriv_doxygen_readfile', 'doxygen_readfile'); // for non-admins
function doxygen_readfile() {
	global $wpdb;
	$path = explode('/', substr($_SERVER['REQUEST_URI'], 1)); //remove intial "/" and build into an array
	array_shift($path); // drop off the 'documentation/' prefix
	$page = $wpdb->get_results(
		 $wpdb->prepare("
			SELECT p.post_content
			  FROM {$wpdb->posts} parent JOIN {$wpdb->posts} p ON p.post_parent = parent.ID
			 WHERE parent.post_name = 'documentation'
			   AND p.post_type = 'page' AND p.post_status = 'publish'
			   AND p.post_date < NOW() AND p.post_name = %s
		", array_shift($path))
	, ARRAY_A );

	if (count($page) == 0) {
		http_response_code(404);
		echo 'invalid page name';
		exit;
	}
	if (!preg_match('/\[doxygen_site file="\/([^"]+)"/i', $page[0]['post_content'], $doxygen_shortcodes)) {
		http_response_code(404);
		echo 'invalid shortcode';
		exit;
	}
	$z = new ZipArchive();
	if ($z->open(ABSPATH . $doxygen_shortcodes[1]) === TRUE) {
		$dotparts = explode('.', $_SERVER['REQUEST_URI']);
		switch($dotparts[count($dotparts)-1]) {
			case 'js':
				header('Content-type: text/javascript');
				break;
			case 'css':
				header('Content-type: text/css');
				break;
			case 'png':
				header('Content-type: image/png');
		}
		$file = implode('/', $path); // put the rest of the path back into a string
		$file = explode('?', $file)[0]; // remove any get parameters
		echo $z->getFromName($file); // if the file's not found, it will just return empty
		$z->close();
		exit;
	}
	http_response_code(404);
	exit;
}
	<?php
	/**
	* Plugin Name: DoxyGen Integration
	* Plugin URI: http://www.fivetalent.com/
	* Description: Enables shortcodes to embed a doxygen site into a page
	* Version: 1.0
	* Author: Eric Freed / Five Talent
	*/


	// Insert HTML content into post
	add_shortcode('doxygen_site', 'doxygen_site');
	function doxygen_site($params, $content){
	if (isset($params['output']) && $params['output'] == 'blank') {
	return '';
	}
	$out = '';
	$z = new ZipArchive();
	$bottomstyle = <<<HTML
	<style>
	.nav-head { padding:0; }
	#titlearea {
	height: 170px;
	padding-top: 20px;
	}

	#nav-tree {
	background-color: inherit;
	}
	#nav-tree a { color: white; }
	#nav-tree a:hover { background-color: #E21D1A; }
	#nav-tree, #nav-tree .selected {
	background-image: none;
	}
	#nav-tree .selected {
	background-color: #E21D1A;
	}
	</style>
	HTML;
	$topstyle = <<<HTML
	<style>
	#content { width:100% }
	#header { width: 250px; padding: 10px 5px; }

	#menu-main-navigation {
	max-height: 210px;
	overflow: hidden;
	}

	.contents { margin-left:262px; }
	@media screen and (max-width: 767px) {
	#side-nav, #nav-tree, #MSearchBox {
	display: none;
	}
	.contents {
	margin-left:0;
	}
	}
	</style>
	HTML;
	$script = <<<HTML
	<script type="text/javascript">
	// Move the location of the nav bar
	var navplaceholder = jQuery("#side-nav").html();
	jQuery("#nav-tree").remove();
	jQuery("#header").append(navplaceholder);

	//
	function initResizable() {}
	var resizeHeight = 0;

	jQuery(function() {
	// Remove all but the first 4 items in mobile menu
	jQuery("#header select option:gt(4)").remove();
	// Remove all but the first 4 items in left nav menu
	jQuery("#menu-main-navigation li:gt(4)").remove();
	// Copy nav items into the mobile menu
	jQuery.each(NAVTREE[0][2],function(){
	var item = '<option value="' + this[1] + '">' + this[0] + '</option>';
	if (jQuery.isArray(this[2])) {
	jQuery.each(this[2], function(){
	item += '<option value="' + this[1] + '"> -- ' + this[0] + '</option>';
	});
	}
	jQuery("#header select").append(item);
	});
	});

	</script>
	HTML;
	if ($z->open(ABSPATH . $params['file']) === TRUE) {
	$path = explode('/', substr($_SERVER['REQUEST_URI'], 1)); //remove intial "/" and build into an array
	array_shift($path); // drop off the 'documentation/' prefix
	array_shift($path); // drop off the page name part
	$file = implode('/', $path);
	if (empty($file)) {
	$file = 'index.html';
	}
	$html = $z->getFromName($file);
	$z->close();

	//$pos = strpos($html, '<script type="text/javascript">');
	//if ($pos !== false) {
	// $html = substr_replace($html, $head, $pos, 0); //insert our head code
	//}
	$html = str_replace('<!--topcssflag-->', $topstyle, $html);
	$html = str_replace('<!--jsflag-->', $script, $html);
	$html = str_replace('<!--bottomcssflag-->', $bottomstyle, $html);

	$html = str_replace('resize.js','',$html);
	$out .= $html;
	} else {
	$out .= ABSPATH . $params['file'] . ' Could not load. ';
	$out .= (file_exists(ABSPATH . $file))?'It does exist':'It does not exist';
	}

	return $out;
	}

	// To make possible the rewrite rule with extra elements after a page name, need to disable redirect_canonical
	add_filter('redirect_canonical', 'doxygen_canonical_exclude');
	add_filter('wpseo_canonical', 'doxygen_canonical_exclude'); // should be needed if Yoast is installed
	function doxygen_canonical_exclude($canonical) {
	if (strpos($_SERVER['REQUEST_URI'],'/documentation')===0 &&
	strpos($_SERVER['REQUEST_URI'],'/search/')===false && // Search ajax support
	substr_count($_SERVER['REQUEST_URI'],'/')>2 // Let /documentation/page redirect to the trailing /
	) {
	$canonical = false;
	}
	return $canonical;
	}

	// Define rewrite rules
	add_action('init','doxygen_readfile_init');
	function doxygen_readfile_init() {
	add_rewrite_rule('documentation/([^/]+)/(search/.+\|.+[^l])$', 'wp-admin/admin-ajax.php?action=doxygen_readfile', 'top');
	add_rewrite_rule('(documentation/[^/]+)/.+l$', 'index.php?pagename=$matches[1]', 'top');
	}
	//register_activation_hook(__FILE__, 'doxygen_flush_rewrite');
	//register_deactivation_hook(__FILE__, 'doxygen_flush_rewrite');
	function doxygen_flush_rewrite() {
	flush_rewrite_rules(true);
	}

	// Enable reading of asset files
	add_action('wp_ajax_doxygen_readfile', 'doxygen_readfile'); // for logged-in admins
	add_action('wp_ajax_nopriv_doxygen_readfile', 'doxygen_readfile'); // for non-admins
	function doxygen_readfile() {
	global $wpdb;
	$path = explode('/', substr($_SERVER['REQUEST_URI'], 1)); //remove intial "/" and build into an array
	array_shift($path); // drop off the 'documentation/' prefix
	$page = $wpdb->get_results(
	$wpdb->prepare("
	SELECT p.post_content
	FROM {$wpdb->posts} parent JOIN {$wpdb->posts} p ON p.post_parent = parent.ID
	WHERE parent.post_name = 'documentation'
	AND p.post_type = 'page' AND p.post_status = 'publish'
	AND p.post_date < NOW() AND p.post_name = %s
	", array_shift($path))
	, ARRAY_A );

	if (count($page) == 0) {
	http_response_code(404);
	echo 'invalid page name';
	exit;
	}
	if (!preg_match('/\[doxygen_site file="\/([^"]+)"/i', $page[0]['post_content'], $doxygen_shortcodes)) {
	http_response_code(404);
	echo 'invalid shortcode';
	exit;
	}
	$z = new ZipArchive();
	if ($z->open(ABSPATH . $doxygen_shortcodes[1]) === TRUE) {
	$dotparts = explode('.', $_SERVER['REQUEST_URI']);
	switch($dotparts[count($dotparts)-1]) {
	case 'js':
	header('Content-type: text/javascript');
	break;
	case 'css':
	header('Content-type: text/css');
	break;
	case 'png':
	header('Content-type: image/png');
	}
	$file = implode('/', $path); // put the rest of the path back into a string
	$file = explode('?', $file)[0]; // remove any get parameters
	echo $z->getFromName($file); // if the file's not found, it will just return empty
	$z->close();
	exit;
	}
	http_response_code(404);
	exit;
	}