Update:增加css及js压缩库

src/Library/Min.php

@@ -0,0 +1,121 @@
+<?php
+namespace Qii\Library;
+
+use Qii\Library\Min\CssMin;
+use Qii\Library\Min\JSMin;
+
+class Min
+{
+    const CSS_TYPE = 'text/css';
+    const JS_TYPE = 'application/x-javascript';
+
+    const CSS = 'css';
+    const JS = 'js';
+
+    /**
+     * Min constructor.
+     */
+    public function __construct()
+    {
+
+    }
+
+    /**
+     * Min constructor.
+     * @param array $map  ['type' => 'js/css', 'files' => []]
+     * @return string
+     */
+    public function minify($map)
+    {
+        if(empty($map)) return;
+        if(empty($map['type'])) return;
+        if(!in_array($map['type'], [self::CSS, self::JS]))
+        {
+            throw new MinException('Unsupported files');
+        }
+        switch ($map['type'])
+        {
+            case self::CSS:
+                return $this->minifyCSS($map['files'], $map['root'] ?? '', $map['version'] ?? '');
+                break;
+            case self::JS:
+                return $this->minifyJS($map['files']);
+                break;
+            default:
+                return '';
+                break;
+        }
+        return '';
+    }
+
+    public function minifyCSS($files, $root = '', $version = '')
+    {
+        if(is_array($files))
+        {
+            foreach($files AS $file)
+            {
+                $css[] = $this->minifyCSS($file);
+            }
+            return join("\n", $css);
+        }
+        if(!is_file($files))
+        {
+            return "/*文件'". $files ."'未找到*/";
+        }
+        $content = $this->getContent($files);
+        $currentDir = dirname($files);
+        return CssMin::rewrite($content, $currentDir, $version, $root);
+    }
+
+    /**
+     * @param array $files 文件列表
+     * @return array
+     */
+    public function minifyJS($files)
+    {
+        if(is_array($files))
+        {
+            $js = [];
+            foreach ($files as $file)
+            {
+                $js[] = $this->minifyJS($file);
+            }
+            return join("\n", $js);
+        }
+        return JSMin::minify($this->getContent($files));
+    }
+
+    /**
+     * 返回文件内容
+     * @param string $file 文件名称
+     * @return bool|string
+     */
+    protected function getContent($file)
+    {
+        $content = file_get_contents($file);
+        // remove UTF-8 BOM
+        return (pack("CCC", 0xef, 0xbb, 0xbf) === substr($content, 0, 3)) ? substr($content, 3) : $content;
+    }
+    /**
+     * @param string $type 类型
+     */
+    public function sendHeader($type)
+    {
+        $header = [
+            'js' => 'Content-Type: application/x-javascript',
+            'css' => 'Content-Type: text/css',
+        ];
+        if(!isset($header[$type]))
+        {
+            return;
+        }
+        header("Access-Control-Allow-Origin:'*'");
+        header("Expires: " . date("D, j M Y H:i:s", strtotime("now + 10 years")) ." GMT");
+        header($header[$type]);
+        return $this;
+    }
+}
+
+class MinException extends \Exception{
+
+}

src/Library/Min/CssMin.php

@@ -0,0 +1,249 @@
+<?php
+
+namespace Qii\Library\Min;
+
+class CssMin
+{
+    /**
+     * Directory of this stylesheet
+     *
+     * @var string
+     */
+    private static $_currentDir = '';
+
+    /**
+     * version number
+     * @var int
+     */
+    private static $_version = '';
+
+    /**
+     * DOC_ROOT
+     *
+     * @var string
+     */
+    private static $_docRoot = '';
+
+    /**
+     * directory replacements to map symlink targets back to their source
+     * (within the document root) E.g. '/var/www/symlink' => '/var/realpath'
+     *
+     * @var array
+     */
+    private static $_symlinks = array();
+
+    /**
+     * Path to prepend
+     *
+     * @var string
+     */
+    private static $_prependPath = null;
+
+    /**
+     * Defines which class to call as part of callbacks, change this if you
+     * extend Minify_CSS_UriRewriter
+     *
+     * @var string
+     */
+    protected static $className = '\Qii\Library\Min\CssMin';
+
+    /**
+     * In CSS content, rewrite file relative URIs as root relative
+     *
+     * @param string $css
+     *
+     * @param string $currentDir The directory of the current CSS file.
+     * @param string $docRoot The document root of the web site in which the CSS
+     *            file resides (default = $_SERVER['DOCUMENT_ROOT']).
+     * @param string $version 版本号.
+     * @param array $symlinks (default = array()) If the CSS file is stored in a
+     *            symlink-ed directory, provide an array of link paths to target
+     *            paths, where the link paths are within the document root.
+     *            Because paths need to be normalized for this to work, use "//"
+     *            to substitute the doc root in the link paths (the array keys).
+     *            E.g.: <code> array('//symlink' => '/real/target/path') // unix
+     *            array('//static' => '\\staticStorage') // Windows </code>
+     * @return string
+     */
+    public static function rewrite($css, $currentDir, $version = 1, $docRoot = null, $symlinks = array())
+    {
+        self::$_docRoot = self::_realpath($docRoot ? $docRoot : $_SERVER['DOCUMENT_ROOT']);
+        self::$_currentDir = self::_realpath($currentDir);
+        self::$_symlinks = array();
+        self::$_version = $version;
+
+        // normalize symlinks
+        foreach ($symlinks as $link => $target) {
+            $link = ($link === '//') ? self::$_docRoot : str_replace('//', self::$_docRoot . '/', $link);
+            $link = strtr($link, '/', DIRECTORY_SEPARATOR);
+            self::$_symlinks[$link] = self::_realpath($target);
+        }
+        $css = self::_trimUrls($css);
+
+        // rewrite
+        $css = preg_replace_callback("/url\\(\\s*(['\"](.*?)['\"]|[^\\)\\s]+)\\s*\\)/", array(
+            self::$className,
+            '_processUriCB'
+        ), $css);
+        $css = self::tripSpace($css);
+
+        return $css;
+    }
+
+    /**
+     * 去掉空格、注释等内容
+     * @param string $css
+     * @return string
+     */
+    public static function tripSpace($css)
+    {
+        $css = str_replace("\r\n", "\n", $css);
+        $search = array("/\/\*[\d\D]*?\*\/|\t+/", "/\s+/", "/\}\s+/");
+        $replace = array(null, " ", "}\n");
+        $css = preg_replace($search, $replace, $css);
+        $search = array("/\\;\s/", "/\s+\{\\s+/", "/\\:\s+\\#/", "/,\s+/i", "/\\:\s+\\\'/i", "/\\:\s+([0-9]+|[A-F]+)/i");
+        $replace = array(";", "{", ":#", ",", ":\'", ":$1");
+        $css = preg_replace($search, $replace, $css);
+        $css = str_replace("\n", null, $css);
+        return $css;
+    }
+
+    public static function prepend($css, $path)
+    {
+        self::$_prependPath = $path;
+
+        $css = self::_trimUrls($css);
+        // append
+        $css = preg_replace_callback('/@import\\s+([\'"])(.*?)[\'"]/', array(
+            self::$className,
+            '_processUriCB'
+        ), $css);
+        $css = preg_replace_callback('url\\(\\s*([\'"](.*?)[\'"]|[^\\)\\s]+)\\s*\\)/', array(
+            self::$className,
+            '_processUriCB'
+        ), $css);
+
+        self::$_prependPath = null;
+        return $css;
+    }
+
+    public static function rewriteRelative($uri, $realCurrentDir, $realDocRoot, $symlinks = array())
+    {
+        // prepend path with current dir separator (OS-independent)
+        $path = strtr($realCurrentDir, '/', DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR . strtr($uri, '/', DIRECTORY_SEPARATOR);
+
+
+        // "unresolve" a symlink back to doc root
+        foreach ($symlinks as $link => $target) {
+            if (0 === strpos($path, $target)) {
+                // replace $target with $link
+                $path = $link . substr($path, strlen($target));
+                break;
+            }
+        }
+        // strip doc root
+        $path = substr($path, strlen($realDocRoot));
+
+
+        // fix to root-relative URI
+        $uri = strtr($path, '/\\', '//');
+        $uri = self::removeDots($uri);
+
+        return $uri;
+    }
+
+    /**
+     * Remove instances of "./" and "../" where possible from a root-relative
+     * URI
+     *
+     * @param string $uri
+     *
+     * @return string
+     */
+    public static function removeDots($uri)
+    {
+        $uri = str_replace('/./', '/', $uri);
+        // inspired by patch from Oleg Cherniy
+        do {
+            $uri = preg_replace('@/[^/]+/\\.\\./@', '/', $uri, 1, $changed);
+        } while ($changed);
+        return $uri;
+    }
+
+    /**
+     * Get realpath with any trailing slash removed. If realpath() fails, just
+     * remove the trailing slash.
+     *
+     * @param string $path
+     *
+     * @return mixed path with no trailing slash
+     */
+    protected static function _realpath($path)
+    {
+        $realPath = realpath($path);
+        if ($realPath !== false) {
+            $path = $realPath;
+        }
+        return rtrim($path, '/\\');
+    }
+
+    /**
+     *
+     * @param string $css
+     *
+     * @return string
+     */
+    private static function _trimUrls($css)
+    {
+        return preg_replace('/
+			url\\(      # url(
+			\\s*
+			([^\\)]+?)  # 1 = URI (assuming does not contain ")")
+			\\s*
+		\\)         # )
+		/x', 'url($1)', $css);
+    }
+
+    /**
+     *
+     * @param array $m
+     *
+     * @return string
+     */
+    private static function _processUriCB($m)
+    {
+        //$m matched either '/@import\\s+([\'"])(.*?)[\'"]/' or
+        // '/url\\(\\s*([^\\)\\s]+)\\s*\\)/'
+        $quoteChar = ($m[1][0] === "'" || $m[1][0] === '"') ? $m[1][0] : '';
+        $uri = ($quoteChar === '') ? $m[1] : substr($m[1], 1, strlen($m[1]) - 2);
+        // if not root/scheme relative and not starts with scheme
+        if (!preg_match('~^(/|[a-z]+\:)~', $uri)) {
+            // URI is file-relative: rewrite depending on options
+            if (self::$_prependPath === null) {
+
+                $uri = self::rewriteRelative($uri, self::$_currentDir, self::$_docRoot, self::$_symlinks);
+            } else {
+                $uri = self::$_prependPath . $uri;
+
+                if ($uri[0] === '/') {
+                    $root = '';
+                    $rootRelative = $uri;
+                    $uri = $root . self::removeDots($rootRelative);
+                } elseif (preg_match('@^((https?\:)?//([^/]+))/@', $uri, $m) && (false !== strpos($m[3], '.'))) {
+                    $root = $m[1];
+                    $rootRelative = substr($uri, strlen($root));
+                    $uri = $root . self::removeDots($rootRelative);
+                }
+            }
+        }
+
+        if (stripos($uri,"?") > 0) {
+            $uris = explode("?", $uri);
+            $uri = $uris[0];
+            $version = '?'. $uris[1] . '&v='. self::$_version;
+        }else{
+            $version = "?v=" . self::$_version;
+        }
+        return "url({$quoteChar}{$uri}{$version}{$quoteChar})";
+    }
+}

src/Library/Min/JSMin.php

@@ -0,0 +1,338 @@
+<?php
+/**
+ * jsmin.php - PHP implementation of Douglas Crockford's JSMin.
+ *
+ * This is pretty much a direct port of jsmin.c to PHP with just a few
+ * PHP-specific performance tweaks. Also, whereas jsmin.c reads from stdin and
+ * outputs to stdout, this library accepts a string as input and returns another
+ * string as output.
+ *
+ * PHP 5 or higher is required.
+ *
+ * Permission is hereby granted to use this version of the library under the
+ * same terms as jsmin.c, which has the following license:
+ *
+ * --
+ * Copyright (c) 2002 Douglas Crockford  (www.crockford.com)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished to do
+ * so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * The Software shall be used for Good, not Evil.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ * --
+ *
+ * @package JSMin
+ * @author Ryan Grove <ryan@wonko.com>
+ * @copyright 2002 Douglas Crockford <douglas@crockford.com> (jsmin.c)
+ * @copyright 2008 Ryan Grove <ryan@wonko.com> (PHP port)
+ * @copyright 2012 Adam Goforth <aag@adamgoforth.com> (Updates)
+ * @license http://opensource.org/licenses/mit-license.php MIT License
+ * @version 1.1.2 (2012-05-01)
+ * @link https://github.com/rgrove/jsmin-php
+ */
+namespace Qii\Library\Min;
+
+class JSMin {
+    const ORD_LF = 10;
+    const ORD_SPACE = 32;
+    const ACTION_KEEP_A = 1;
+    const ACTION_DELETE_A = 2;
+    const ACTION_DELETE_A_B = 3;
+    protected $a = '';
+    protected $b = '';
+    protected $input = '';
+    protected $inputIndex = 0;
+    protected $inputLength = 0;
+    protected $lookAhead = null;
+    protected $output = '';
+    // -- Public Static Methods --------------------------------------------------
+    /**
+     * Minify Javascript
+     *
+     * @uses __construct()
+     * @uses min()
+     * @param string $js Javascript to be minified
+     * @return string
+     */
+    public static function minify($js) {
+        $jsmin = new JSMin($js);
+        return $jsmin->min();
+    }
+    // -- Public Instance Methods ------------------------------------------------
+    /**
+     * Constructor
+     *
+     * @param string $input Javascript to be minified
+     */
+    public function __construct($input) {
+        $this->input = str_replace("\r\n", "\n", $input);
+        $this->inputLength = strlen($this->input);
+    }
+    // -- Protected Instance Methods ---------------------------------------------
+    /**
+     * Action -- do something! What to do is determined by the $command argument.
+     *
+     * action treats a string as a single character. Wow!
+     * action recognizes a regular expression if it is preceded by ( or , or =.
+     *
+     * @uses next()
+     * @uses get()
+     * @throws JSMinException If parser errors are found:
+     *         - Unterminated string literal
+     *         - Unterminated regular expression set in regex literal
+     *         - Unterminated regular expression literal
+     * @param int $command One of class constants:
+     *      ACTION_KEEP_A      Output A. Copy B to A. Get the next B.
+     *      ACTION_DELETE_A    Copy B to A. Get the next B. (Delete A).
+     *      ACTION_DELETE_A_B  Get the next B. (Delete B).
+     */
+    protected function action($command) {
+        switch ($command) {
+            case self::ACTION_KEEP_A:
+                $this->output .= $this->a;
+            case self::ACTION_DELETE_A:
+                $this->a = $this->b;
+                if ($this->a === "'" || $this->a === '"') {
+                    for (;;) {
+                        $this->output .= $this->a;
+                        $this->a = $this->get();
+                        if ($this->a === $this->b) {
+                            break;
+                        }
+                        if (ord($this->a) <= self::ORD_LF) {
+                            throw new JSMinException('Unterminated string literal.');
+                        }
+                        if ($this->a === '\\') {
+                            $this->output .= $this->a;
+                            $this->a = $this->get();
+                        }
+                    }
+                }
+            case self::ACTION_DELETE_A_B:
+                $this->b = $this->next();
+                if ($this->b === '/' && (
+                        $this->a === '(' || $this->a === ',' || $this->a === '=' ||
+                        $this->a === ':' || $this->a === '[' || $this->a === '!' ||
+                        $this->a === '&' || $this->a === '|' || $this->a === '?' ||
+                        $this->a === '{' || $this->a === '}' || $this->a === ';' ||
+                        $this->a === "\n" )) {
+                    $this->output .= $this->a . $this->b;
+                    for (;;) {
+                        $this->a = $this->get();
+                        if ($this->a === '[') {
+                            /*
+                              inside a regex [...] set, which MAY contain a '/' itself. Example: mootools Form.Validator near line 460:
+                              return Form.Validator.getValidator('IsEmpty').test(element) || (/^(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]\.?){0,63}[a-z0-9!#$%&'*+/=?^_`{|}~-]@(?:(?:[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?\.)*[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\])$/i).test(element.get('value'));
+                             */
+                            for (;;) {
+                                $this->output .= $this->a;
+                                $this->a = $this->get();
+                                if ($this->a === ']') {
+                                    break;
+                                } elseif ($this->a === '\\') {
+                                    $this->output .= $this->a;
+                                    $this->a = $this->get();
+                                } elseif (ord($this->a) <= self::ORD_LF) {
+                                    throw new JSMinException('Unterminated regular expression set in regex literal.');
+                                }
+                            }
+                        } elseif ($this->a === '/') {
+                            break;
+                        } elseif ($this->a === '\\') {
+                            $this->output .= $this->a;
+                            $this->a = $this->get();
+                        } elseif (ord($this->a) <= self::ORD_LF) {
+                            throw new JSMinException('Unterminated regular expression literal.');
+                        }
+                        $this->output .= $this->a;
+                    }
+                    $this->b = $this->next();
+                }
+        }
+    }
+    /**
+     * Get next char. Convert ctrl char to space.
+     *
+     * @return string|null
+     */
+    protected function get() {
+        $c = $this->lookAhead;
+        $this->lookAhead = null;
+        if ($c === null) {
+            if ($this->inputIndex < $this->inputLength) {
+                $c = substr($this->input, $this->inputIndex, 1);
+                $this->inputIndex += 1;
+            } else {
+                $c = null;
+            }
+        }
+        if ($c === "\r") {
+            return "\n";
+        }
+        if ($c === null || $c === "\n" || ord($c) >= self::ORD_SPACE) {
+            return $c;
+        }
+        return ' ';
+    }
+    /**
+     * Is $c a letter, digit, underscore, dollar sign, or non-ASCII character.
+     *
+     * @return bool
+     */
+    protected function isAlphaNum($c) {
+        return ord($c) > 126 || $c === '\\' || preg_match('/^[\w\$]$/', $c) === 1;
+    }
+    /**
+     * Perform minification, return result
+     *
+     * @uses action()
+     * @uses isAlphaNum()
+     * @uses get()
+     * @uses peek()
+     * @return string
+     */
+    protected function min() {
+        if (0 == strncmp($this->peek(), "\xef", 1)) {
+            $this->get();
+            $this->get();
+            $this->get();
+        }
+        $this->a = "\n";
+        $this->action(self::ACTION_DELETE_A_B);
+        while ($this->a !== null) {
+            switch ($this->a) {
+                case ' ':
+                    if ($this->isAlphaNum($this->b)) {
+                        $this->action(self::ACTION_KEEP_A);
+                    } else {
+                        $this->action(self::ACTION_DELETE_A);
+                    }
+                    break;
+                case "\n":
+                    switch ($this->b) {
+                        case '{':
+                        case '[':
+                        case '(':
+                        case '+':
+                        case '-':
+                        case '!':
+                        case '~':
+                            $this->action(self::ACTION_KEEP_A);
+                            break;
+                        case ' ':
+                            $this->action(self::ACTION_DELETE_A_B);
+                            break;
+                        default:
+                            if ($this->isAlphaNum($this->b)) {
+                                $this->action(self::ACTION_KEEP_A);
+                            } else {
+                                $this->action(self::ACTION_DELETE_A);
+                            }
+                    }
+                    break;
+                default:
+                    switch ($this->b) {
+                        case ' ':
+                            if ($this->isAlphaNum($this->a)) {
+                                $this->action(self::ACTION_KEEP_A);
+                                break;
+                            }
+                            $this->action(self::ACTION_DELETE_A_B);
+                            break;
+                        case "\n":
+                            switch ($this->a) {
+                                case '}':
+                                case ']':
+                                case ')':
+                                case '+':
+                                case '-':
+                                case '"':
+                                case "'":
+                                    $this->action(self::ACTION_KEEP_A);
+                                    break;
+                                default:
+                                    if ($this->isAlphaNum($this->a)) {
+                                        $this->action(self::ACTION_KEEP_A);
+                                    } else {
+                                        $this->action(self::ACTION_DELETE_A_B);
+                                    }
+                            }
+                            break;
+                        default:
+                            $this->action(self::ACTION_KEEP_A);
+                            break;
+                    }
+            }
+        }
+        return $this->output;
+    }
+    /**
+     * Get the next character, skipping over comments. peek() is used to see
+     *  if a '/' is followed by a '/' or '*'.
+     *
+     * @uses get()
+     * @uses peek()
+     * @throws JSMinException On unterminated comment.
+     * @return string
+     */
+    protected function next() {
+        $c = $this->get();
+        if ($c === '/') {
+            switch ($this->peek()) {
+                case '/':
+                    for (;;) {
+                        $c = $this->get();
+                        if (ord($c) <= self::ORD_LF) {
+                            return $c;
+                        }
+                    }
+                case '*':
+                    $this->get();
+                    for (;;) {
+                        switch ($this->get()) {
+                            case '*':
+                                if ($this->peek() === '/') {
+                                    $this->get();
+                                    return ' ';
+                                }
+                                break;
+                            case null:
+                                throw new JSMinException('Unterminated comment.');
+                        }
+                    }
+                default:
+                    return $c;
+            }
+        }
+        return $c;
+    }
+    /**
+     * Get next char. If is ctrl character, translate to a space or newline.
+     *
+     * @uses get()
+     * @return string|null
+     */
+    protected function peek() {
+        $this->lookAhead = $this->get();
+        return $this->lookAhead;
+    }
+}
+// -- Exceptions ---------------------------------------------------------------
+class JSMinException extends \Exception {
+    
+}