cc-css.php | searchcode

/css/cc-css.php

https://github.com/tany/cc-css
PHP | 539 lines | 414 code | 98 blank | 27 comment | 59 complexity | 4df2d77abf64f7e791e665bdefaacc6b MD5 | raw file

<?php



/**

 * ===================================================================

 * Copyright (c) 2013 tany

 * Licensed under The MIT License <http://opensource.org/licenses/MIT>

 * ===================================================================

 */



// ------ call ------ //



$css = new CC_CSS();



//$css->output('../css-output'); // output directory



$css->prepend('usual.cc.css'); // auto prepend file



$css->cache()->decode()->flush(); // output..



// ------ class ------ //



class CC_CSS {

	

	public

		$meta = array("@charset \"UTF-8\";\n");

	

	protected

		$_output = null;

	

	protected

		$_cache = null;

		

	protected

		$_mtime = null;

	

	protected

		$_file = null;

		

	protected

		$_uri = null;

	

	protected

		$_prepended = array();

		

	protected

		$_current = array();

	

	protected

		$_contents = array();

		

	protected

		$_css = '';

	

	protected

		$_vars = array();

		

	protected

		$_errors = array();

	

	public function __construct() {

		$this->_uri   = dirname($_SERVER['SCRIPT_NAME']);

		$this->_mtime = filemtime(__FILE__);

	}

	

	public function output($dir) {

		$this->_output = $dir;

	}

	

	public function prepend($file) {

		$this->_readFile($file);

		$this->_prepended[] = $file;

		return $this;

	}

	

	public function cache($expires = '+3 days') {

		$this->_cache = $expires;

		return $this;

	}

	

	public function decode() {

		$file = isset($_REQUEST['file']) ? "{$_REQUEST['file']}.cc.css" : null;

		if (strpos($file, '..') !== false || strpos($file, '://') !== false || $file[0] === '/' || !is_file($file)) {

			header('HTTP/1.1 404 Not Found');

			exit;

		}

		$this->_file = $file;

		$this->_readFile($file);

		

		if ($this->_cache) {

			$headers = apache_request_headers();

			if (isset($headers['If-Modified-Since']) && (strtotime($headers['If-Modified-Since']) == $this->_mtime)) {

				$this->_cache = true;

				return $this;

			}

		}

		foreach ($this->_prepended as $file) {

			$this->_css .= $this->_decodeFile($file);

		}

		$this->_css .= $this->_decodeFile($this->_file);

		

		return $this;

	}

	

	public function flush() {

		// cache

		if (count($this->_errors) == 0) {

			if ($this->_cache === true) {

				header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $this->_mtime) . ' GMT', true, 304);

				return $this;

			} else if ($this->_cache) {

				$expires = new DateTime($this->_cache);

				header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $this->_mtime) . ' GMT');

				header('Cache-Control: max-age=' . ($expires->format('U') - time()));

			}

		}

		

		$css = implode('', array_unique($this->meta)) . "\n{$this->_css}";

		$css = preg_replace('/\n{2,}/m', "\n\n", $css);

		if (count($this->_errors)) {

			$hr  = str_repeat('=', 70);

			$err = "/*\n\nNotice: compile error\n{$hr} \n- " . implode("\n- ", $this->_errors) . "\n{$hr} \n\n*/\n\n";

			$css = preg_replace('/^(?!@charset|@import)/m', $err . '$1', $css, 1);

		}

		if ($this->_output) {

			$this->_outputFile($css);

		}

		header('Content-type: text/css; charset=utf-8');

		//header('Content-type: text/plain; charset=utf-8');

		print $css;

	}

	

	protected function _readFile($file, $src = null) {

		if (!is_file($file = $this->_fixPath($src, $file))) {

			return $this->_error("no such file: {$file} in {$src}");

		}

		if (!isset($this->_contents[$file])) {

			$this->_contents[$file] = file_get_contents($file);

			$this->_mtime = max($this->_mtime, filemtime($file));

			if (preg_match_all('/^\s*@include ["\'](.*?)["\'];/m', $this->_contents[$file], $m)) {

				foreach ($m[1] as $_file) {

					$this->_readFile($_file, $file);

				}

			}

		}

	}

	

	protected function _outputFile($css) {

		$base = $this->_output;

		$file = "{$base}/" . preg_replace('/\.cc\.css$/', '.css', $this->_file);

		$dir  = dirname($file);

		

		if (!is_dir($base)) {

			mkdir($base);

			chmod($base, 0757);

		}

		if (!is_dir($dir) || !is_writable($dir)) {

			$dir = $base;

			foreach (explode('/', dirname($this->_file)) as $name) {

				$dir .= "/{$name}";

				if (!is_dir($dir)) mkdir($dir);

				chmod($dir, 0757);

			}

		}

		if (is_file($file)) {

			if (!is_writable($file)) chmod($file, 0646);

			if (file_get_contents($file) !== $css) file_put_contents($file, $css);

		} else {

			file_put_contents($file, $css);

			chmod($file, 0646);

		}

	}

	

	protected function _decodeFile($file) {

		if (!isset($this->_contents[$file])) {

			return null;

		}

		array_unshift($this->_current, $file);

		

		$css = $this->_contents[$file];

		$css = preg_replace('/^@charset.*?(\n|$)/', '', $css); // remove @charset

		$css = preg_replace('/(^\s*|\s+)\/\/.*$/m', '', $css); // remove comment

		

		if (count($this->_current) > 1) { // rewrite url on @include

			$css = preg_replace_callback('/^@import ["\'](.*?)["\'];/m', array($this, '_importCallback'), $css);

			$css = preg_replace_callback('/url\(["\']?(.*?)["\']?\)/', array($this, '_urlCallback'), $css);

		}

		if (preg_match_all('/^@import .*?(?:\r\n|\n|$)/m', $css, $m)) { // stack @import

			$this->meta = array_merge($this->meta, $m[0]);

			$css = preg_replace('/^(@import .*?(\r\n|\n|$))/m', '', $css);

		}

		

		$xml = htmlspecialchars($css);

		$xml = preg_replace('/\s*,(\r\n|\n)\s*/ms', ', ', $xml);

		$xml = preg_replace('/((?:^|\{|\}|;|)\s*)(.*?)\s*\{/m', '$1<s name="$2">', $xml);

		$xml = preg_replace('/\}/', '</s>', $xml);

		

		$doc = new DOMDocument;

		$doc->loadXML("<xml>{$xml}</xml>");

		

		$css = $this->_decodeNode($doc->firstChild);

		$css = htmlspecialchars_decode($css);

		

		array_shift($this->_current);

		return $css;

	}

	

	protected function _decodeNode($node, $path = null) {

		$css = '';

		

		if ($node instanceof DOMText) {

			$value = $node->nodeValue;

			

			// @include

			if (preg_match_all('/^\s*@include ["\'](.*?)["\'];/m', $value, $m)) {

				foreach ($m[1] as $i => $file) {

					$file = $this->_fixPath($this->_current[0], $file);

					$value = preg_replace('/' . preg_quote($m[0][$i], '/') . '/', $this->_decodeFile($file), $value, 1);

				}

			}

			

			// $var or make css

			if (preg_match_all('/\$([a-zA-Z\-_][\w\-]*)\s*(?::\s*(.*?))?;/', $value, $m)) {

				foreach ($m[1] as $i => $key) {

					$method = 'css_' . str_replace('-', '_', $key);

					if (isset($this->_vars[$key])) {

						$args = trim($m[2][$i]) ? preg_split('/\s*,\s*/', $m[2][$i]) : array();

						$xml  = $this->_vars[$key][1];

						foreach ($this->_vars[$key][0] as $j => $arg) {

							$arg = isset($args[$j]) && $args[$j] !== 'null' ? $args[$j] : $arg;

							$xml = preg_replace('/\$' . ($j + 1) . '/', $arg, $xml);

						}

						$value = preg_replace('/' . preg_quote($m[0][$i], '/') . '/', $xml, $value, 1);

					} else if (method_exists($this, $method)) {

						$args  = trim($m[2][$i]) ? preg_split('/\s*,\s*/', $m[2][$i]) : array();

						$res   = call_user_func_array(array($this, $method), $args);

						$value = preg_replace('/' . preg_quote($m[0][$i], '/') . '/', $res, $value, 1);

					} else {

						$value = preg_replace('/' . preg_quote($m[0][$i], '/') . '/', '', $value);

						$this->_error('undefined variable: $' . "{$key} in {$this->_current[0]}");

					}

				}

				$doc = new DOMDocument;

				$doc->loadXML("<xml>{$value}</xml>");

				$node = $doc->firstChild;

			} else if ($path) {

				$value = trim($value);

				$css  .= implode(", ", $path) . " {\n" . preg_replace('/^\s*/m', '    ', $value) . "\n}\n";

//				foreach ($path as $p) {

//					$css[] = $p ? "{$p} {\n" . preg_replace('/^\s*/m', '    ', $value) . "\n}\n" : "{$value}\n";

//				}

			} else {

				$css .= $value;

			}

		}

		

		if (!($node instanceof DOMElement)) {

			return $css;

		}

		$name = $node->getAttribute('name');

		

		// @media

		if ($name && $name[0] === '@') {

			$node->setAttribute('name', '');

			return "{$name} {\n" . preg_replace('/^/m', '    ', $this->_decodeNode($node)) . "}\n";

		}

		

		// $var

		if ($key = preg_filter('/.*\$([\w\-]+).*/', '$1', $name)) {

			$xml = array();

			foreach ($node->childNodes as $cn) {

				$xml[] = $cn->C14N();

			}

			$args = preg_split('/\s*,\s*/', preg_filter('/.*\((.*?)\).*/', '$1', $name));

			$this->_vars[$key] = array($args, implode('', $xml));

			

			$name = trim(preg_replace('/(^|,)\s*\$[\w\-]+\s*(\(.*?\))?(,|$)/', '$1', $name), ',');

			if (!$name) return $css;

		}

		

		foreach ($node->childNodes as $child) {

			if (($child instanceof DOMText) && !trim($child->nodeValue)) {

				continue;

			}

			if ($path && $name) {

				$next = array();

				foreach (preg_split('/\s*,\s*/', $name) as $n) {

					foreach ($path as $p) {

						$next[] = str_replace(' :', ':', trim("{$p} {$n}"));

					}

				}

			} else if ($path) {

				$next = $path;

			} else if ($name) {

				$next = preg_split('/\s*,\s*/', $name);

			} else {

				$next = null;

			}

			$css .= $this->_decodeNode($child, $next);

		}

		return $css;

	}

	

	protected function _fixPath($src, $dst) {

		if ($dst[0] === '/') {

			return preg_replace('/^' . preg_quote($this->_uri . '/', '/') . '/', '', $dst);

		}

		$path = $src ? dirname($src) . "/{$dst}" : $dst;

		$path = str_replace('/./', '/', $path);

		$path = preg_replace('/[^\/]+\/\.\.\//', '', $path);

		return $path;

	}

	

	protected function _fixUri($path) {

		$path = str_replace('/./', '/', $path);

		$path = str_replace('//', '/', $path);

		$path = preg_replace('/[^\/]+\/\.\.\//', '', $path);

		$path = preg_replace('/^\.\//', '', $path);

		return $path;

	}

	

	protected function _importCallback($m) {

		$file = $m[1];

		if ($file[0] === '/' || strpos($file, '//') !== false) {

			return $m[0];

		}

		$file = dirname($this->_current[0]) . "/{$file}";

		return '@import "'. $this->_fixUri($file) . '";';

	}

	

	protected function _urlCallback($m) {

		$file = $m[1];

		if ($file[0] === '/' || strpos($file, '//') !== false) {

			return $m[0];

		}

		$file = "{$this->_uri}/" . dirname($this->_current[0]) . "/{$file}";

		return 'url(' . $this->_fixUri($file) . ')';

	}

	

	protected function _error($msg = null) {

		$this->_errors[] = $msg;

		return false;

	}

	

	// ------ vendor prefix ------ //

	

	protected function css_vendor_prefix($name, $value) {

		return implode("\n", array(

			"{$name}: {$value};",

			"-o-{$name}: {$value};",

			"-ms-{$name}: {$value};",

			"-moz-{$name}: {$value};",

			"-webkit-{$name}: {$value};",

		));

	}

	

	// ------ background ------ //

	

	protected function css_background_clip($value = 'border') {

		$value = str_replace('-box', '', $value);

		return implode("\n", array(

			"background-clip: {$value}-box;",

			"-o-background-clip: {$value}-box;",

			"-ms-background-clip: {$value}-box;",

			"-moz-background-clip: {$value};",

			"-webkit-background-clip: {$value}-box;",

		));

	}

	

	protected function css_background_origin($value = 'padding') {

		$value = str_replace('-box', '', $value);

		return implode("\n", array(

			"background-origin: {$value}-box;",

			"-o-background-origin: {$value}-box;",

			"-ms-background-origin: {$value}-box;",

			"-moz-background-origin: {$value};",

			"-webkit-background-origin: {$value}-box;",

		));

	}

	

	protected function css_background_size($value = 'auto') {

		return $this->css_vendor_prefix('background-size', $value);

	}

	

	// ------ border ------ //

	

	protected function css_border_radius($value = '0') {

		return $this->css_vendor_prefix('border-radius', $value);

	}

	

	protected function css_border_top_left_radius($value = '0') {

		return $this->css_vendor_prefix('border-top-left-radius', $value);

	}

	

	protected function css_border_top_right_radius($value = '0') {

		return $this->css_vendor_prefix('border-top-right-radius', $value);

	}

	

	protected function css_border_bottom_left_radius($value = '0') {

		return $this->css_vendor_prefix('border-bottom-left-radius', $value);

	}

	

	protected function css_border_bottom_right_radius($value = '0') {

		return $this->css_vendor_prefix('border-bottom-right-radius', $value);

	}

	

	protected function css_border_image($value = 'none') {

		return $this->css_vendor_prefix('border-image', $value);

	}

	

	// ------ border ------ //

	

	protected function css_border_image_source($value = 'none') {

		return $this->css_vendor_prefix('border_image_source', $value);

	}

	

	protected function css_box_shadow($value = 'none') {

		return $this->css_vendor_prefix('box-shadow', $value);

	}

	

	// ------ transform ------ //

	

	protected function css_transform($value = 'none') {

		return $this->css_vendor_prefix('transform', $value);

	}

	

	// ------ transition ------ //

	

	protected function css_transition($value = 'none 0 ease 0') {

		return $this->css_vendor_prefix('transition', $value);

	}

	

	protected function css_transition_property($value = 'none') {

		return $this->css_vendor_prefix('transition-property', $value);

	}

	

	protected function css_transition_duration($value = '0') {

		return $this->css_vendor_prefix('transition-duration', $value);

	}

	

	protected function css_transition_timing_function($value = 'ease') {

		return $this->css_vendor_prefix('transition-timing-function', $value);

	}

	

	protected function css_transition_delay($value = '0') {

		return $this->css_vendor_prefix('transition-delay', $value);

	}

	

	// ------ animation ------ //

	

	protected function css_animation($value = 'none 0 ease 0 1 normal') {

		return $this->css_vendor_prefix('animation', $value);

	}

	

	protected function css_animation_name($value = 'none') {

		return $this->css_vendor_prefix('animation-name', $value);

	}

	

	protected function css_animation_duration($value = '0') {

		return $this->css_vendor_prefix('animation-duration', $value);

	}

	

	protected function css_animation_timing_function($value = 'ease') {

		return $this->css_vendor_prefix('animation-timing-function', $value);

	}

	

	protected function css_animation_iteration_count($value = '1') {

		return $this->css_vendor_prefix('animation-iteration-count', $value);

	}

	

	protected function css_animation_direction($value = 'normal') {

		return $this->css_vendor_prefix('animation-direction', $value);

	}

	

	protected function css_animation_play_state($value = 'none') {

		return $this->css_vendor_prefix('animation-play-state', $value);

	}

	

	protected function css_animation_delay($value = '0') {

		return $this->css_vendor_prefix('animation-delay', $value);

	}

	

	// ------ gradation ------ //

	

	protected function css_linear_gradient($value = 'none') {

		$value = implode(', ', func_get_args());

		return implode("\n", array(

			"background: linear-gradient({$value});",

			"background: -o-linear-gradient({$value});",

			"background: -ms-linear-gradient({$value});",

			"background: -moz-linear-gradient({$value});",

			"background: -webkit-linear-gradient({$value});",

		));

	}

	

	protected function css_radial_gradient($value = 'none') {

		$value = implode(', ', func_get_args());

		return implode("\n", array(

			"background: radial-gradient({$value});",

			"background: -o-radial-gradient({$value});",

			"background: -ms-radial-gradient({$value});",

			"background: -moz-radial-gradient({$value});",

			"background: -webkit-radial-gradient({$value});",

		));

	}

	

	//------ box layout ------ //

	

	protected function css_box_orient($value = 'inline-axis') {

		return $this->css_vendor_prefix('box-orient', $value);

	}

	

	protected function css_box_direction($value = 'normal') {

		return $this->css_vendor_prefix('box-direction', $value);

	}

	

	protected function css_box_ordinal_group($value = '1') {

		return $this->css_vendor_prefix('box-ordinal-group', $value);

	}

	

	protected function css_box_align($value = 'stretch') {

		return $this->css_vendor_prefix('box-align', $value);

	}

	

	protected function css_box_flex($value = '0.0') {

		return $this->css_vendor_prefix('box-flex', $value);

	}

	

	protected function css_box_flex_group($value = '1') {

		return $this->css_vendor_prefix('box-flex-group', $value);

	}

	

	protected function css_box_pack($value = 'start') {

		return $this->css_vendor_prefix('box-pack', $value);

	}

	

	protected function css_box_lines($value = 'single') {

		return $this->css_vendor_prefix('box-lines', $value);

	}

}