diff options
Diffstat (limited to 'admin/survey/minify/lib/Minify/HTML')
| -rw-r--r-- | admin/survey/minify/lib/Minify/HTML/Helper.php | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/admin/survey/minify/lib/Minify/HTML/Helper.php b/admin/survey/minify/lib/Minify/HTML/Helper.php new file mode 100644 index 0000000..84ed45e --- /dev/null +++ b/admin/survey/minify/lib/Minify/HTML/Helper.php @@ -0,0 +1,250 @@ +<?php
+/**
+ * Class Minify_HTML_Helper
+ * @package Minify
+ */
+
+/**
+ * Helpers for writing Minify URIs into HTML
+ *
+ * @package Minify
+ * @author Stephen Clay <steve@mrclay.org>
+ */
+class Minify_HTML_Helper
+{
+ public $rewriteWorks = true;
+ public $minAppUri = '/min';
+ public $groupsConfigFile = '';
+
+ /**
+ * Get an HTML-escaped Minify URI for a group or set of files
+ *
+ * @param string|array $keyOrFiles a group key or array of filepaths/URIs
+ * @param array $opts options:
+ * 'farExpires' : (default true) append a modified timestamp for cache revving
+ * 'debug' : (default false) append debug flag
+ * 'charset' : (default 'UTF-8') for htmlspecialchars
+ * 'minAppUri' : (default '/min') URI of min directory
+ * 'rewriteWorks' : (default true) does mod_rewrite work in min app?
+ * 'groupsConfigFile' : specify if different
+ * @return string
+ */
+ public static function getUri($keyOrFiles, $opts = array())
+ {
+ $opts = array_merge(array( // default options
+ 'farExpires' => true,
+ 'debug' => false,
+ 'charset' => 'UTF-8',
+ 'minAppUri' => '/min',
+ 'rewriteWorks' => true,
+ 'groupsConfigFile' => self::app()->groupsConfigPath,
+ ), $opts);
+
+ $h = new self;
+ $h->minAppUri = $opts['minAppUri'];
+ $h->rewriteWorks = $opts['rewriteWorks'];
+ $h->groupsConfigFile = $opts['groupsConfigFile'];
+
+ if (is_array($keyOrFiles)) {
+ $h->setFiles($keyOrFiles, $opts['farExpires']);
+ } else {
+ $h->setGroup($keyOrFiles, $opts['farExpires']);
+ }
+ $uri = $h->getRawUri($opts['farExpires'], $opts['debug']);
+
+ return htmlspecialchars($uri, ENT_QUOTES, $opts['charset']);
+ }
+
+ /**
+ * Get non-HTML-escaped URI to minify the specified files
+ *
+ * @param bool $farExpires
+ * @param bool $debug
+ * @return string
+ */
+ public function getRawUri($farExpires = true, $debug = false)
+ {
+ $path = rtrim($this->minAppUri, '/') . '/';
+ if (! $this->rewriteWorks) {
+ $path .= '?';
+ }
+ if (null === $this->_groupKey) {
+ // @todo: implement shortest uri
+ $path = self::_getShortestUri($this->_filePaths, $path);
+ } else {
+ $path .= "g=" . $this->_groupKey;
+ }
+ if ($debug) {
+ $path .= "&debug";
+ } elseif ($farExpires && $this->_lastModified) {
+ $path .= "&" . $this->_lastModified;
+ }
+
+ return $path;
+ }
+
+ /**
+ * Set the files that will comprise the URI we're building
+ *
+ * @param array $files
+ * @param bool $checkLastModified
+ */
+ public function setFiles($files, $checkLastModified = true)
+ {
+ $this->_groupKey = null;
+ if ($checkLastModified) {
+ $this->_lastModified = self::getLastModified($files);
+ }
+ // normalize paths like in /min/f=<paths>
+ foreach ($files as $k => $file) {
+ if (0 === strpos($file, '//')) {
+ $file = substr($file, 2);
+ } elseif (0 === strpos($file, '/') || 1 === strpos($file, ':\\')) {
+ $file = substr($file, strlen(self::app()->env->getDocRoot()) + 1);
+ }
+ $file = strtr($file, '\\', '/');
+ $files[$k] = $file;
+ }
+ $this->_filePaths = $files;
+ }
+
+ /**
+ * Set the group of files that will comprise the URI we're building
+ *
+ * @param string $key
+ * @param bool $checkLastModified
+ */
+ public function setGroup($key, $checkLastModified = true)
+ {
+ $this->_groupKey = $key;
+ if ($checkLastModified) {
+ if (! $this->groupsConfigFile) {
+ $this->groupsConfigFile = self::app()->groupsConfigPath;
+ }
+ if (is_file($this->groupsConfigFile)) {
+ $gc = (require $this->groupsConfigFile);
+ $keys = explode(',', $key);
+ foreach ($keys as $key) {
+ if (!isset($gc[$key])) {
+ // this can happen if value is null
+ // which could be solved with array_filter
+ continue;
+ }
+
+ $this->_lastModified = self::getLastModified($gc[$key], $this->_lastModified);
+ }
+ }
+ }
+ }
+
+ /**
+ * Get the max(lastModified) of all files
+ *
+ * @param array|string $sources
+ * @param int $lastModified
+ * @return int
+ */
+ public static function getLastModified($sources, $lastModified = 0)
+ {
+ $max = $lastModified;
+ $factory = self::app()->sourceFactory;
+
+ /** @var Minify_Source $source */
+ foreach ((array)$sources as $source) {
+ $source = $factory->makeSource($source);
+ $max = max($max, $source->getLastModified());
+ }
+
+ return $max;
+ }
+
+ /**
+ * @param \Minify\App $app
+ * @return \Minify\App
+ * @internal
+ */
+ public static function app(\Minify\App $app = null)
+ {
+ static $cached;
+ if ($app) {
+ $cached = $app;
+
+ return $app;
+ }
+ if ($cached === null) {
+ $cached = (require __DIR__ . '/../../../bootstrap.php');
+ }
+
+ return $cached;
+ }
+
+ protected $_groupKey = null; // if present, URI will be like g=...
+ protected $_filePaths = array();
+ protected $_lastModified = null;
+
+ /**
+ * In a given array of strings, find the character they all have at
+ * a particular index
+ *
+ * @param array $arr array of strings
+ * @param int $pos index to check
+ * @return mixed a common char or '' if any do not match
+ */
+ protected static function _getCommonCharAtPos($arr, $pos)
+ {
+ if (!isset($arr[0][$pos])) {
+ return '';
+ }
+ $c = $arr[0][$pos];
+ $l = count($arr);
+ if ($l === 1) {
+ return $c;
+ }
+ for ($i = 1; $i < $l; ++$i) {
+ if ($arr[$i][$pos] !== $c) {
+ return '';
+ }
+ }
+
+ return $c;
+ }
+
+ /**
+ * Get the shortest URI to minify the set of source files
+ *
+ * @param array $paths root-relative URIs of files
+ * @param string $minRoot root-relative URI of the "min" application
+ * @return string
+ */
+ protected static function _getShortestUri($paths, $minRoot = '/min/')
+ {
+ $pos = 0;
+ $base = '';
+ while (true) {
+ $c = self::_getCommonCharAtPos($paths, $pos);
+ if ($c === '') {
+ break;
+ } else {
+ $base .= $c;
+ }
+ ++$pos;
+ }
+ $base = preg_replace('@[^/]+$@', '', $base);
+ $uri = $minRoot . 'f=' . implode(',', $paths);
+
+ if (substr($base, -1) === '/') {
+ // we have a base dir!
+ $basedPaths = $paths;
+ $l = count($paths);
+ for ($i = 0; $i < $l; ++$i) {
+ $basedPaths[$i] = substr($paths[$i], strlen($base));
+ }
+ $base = substr($base, 0, strlen($base) - 1);
+ $bUri = $minRoot . 'b=' . $base . '&f=' . implode(',', $basedPaths);
+
+ $uri = strlen($uri) < strlen($bUri) ? $uri : $bUri;
+ }
+
+ return $uri;
+ }
+}
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