git subrepo clone https://github.com/mailcow/mailcow-dockerized.git mailcow/src/mailcow-dockerized

subrepo: subdir:   "mailcow/src/mailcow-dockerized"
  merged:   "a832becb"
upstream: origin:   "https://github.com/mailcow/mailcow-dockerized.git"
  branch:   "master"
  commit:   "a832becb"
git-subrepo: version:  "0.4.3"
  origin:   "???"
  commit:   "???"
Change-Id: If5be2d621a211e164c9b6577adaa7884449f16b5
diff --git a/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/CSS.php b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/CSS.php
new file mode 100644
index 0000000..89fcf1b
--- /dev/null
+++ b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/CSS.php
@@ -0,0 +1,752 @@
+<?php
+/**
+ * CSS Minifier
+ *
+ * Please report bugs on https://github.com/matthiasmullie/minify/issues
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
+ * @license MIT License
+ */
+
+namespace MatthiasMullie\Minify;
+
+use MatthiasMullie\Minify\Exceptions\FileImportException;
+use MatthiasMullie\PathConverter\ConverterInterface;
+use MatthiasMullie\PathConverter\Converter;
+
+/**
+ * CSS minifier
+ *
+ * Please report bugs on https://github.com/matthiasmullie/minify/issues
+ *
+ * @package Minify
+ * @author Matthias Mullie <minify@mullie.eu>
+ * @author Tijs Verkoyen <minify@verkoyen.eu>
+ * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
+ * @license MIT License
+ */
+class CSS extends Minify
+{
+    /**
+     * @var int maximum inport size in kB
+     */
+    protected $maxImportSize = 5;
+
+    /**
+     * @var string[] valid import extensions
+     */
+    protected $importExtensions = array(
+        'gif' => 'data:image/gif',
+        'png' => 'data:image/png',
+        'jpe' => 'data:image/jpeg',
+        'jpg' => 'data:image/jpeg',
+        'jpeg' => 'data:image/jpeg',
+        'svg' => 'data:image/svg+xml',
+        'woff' => 'data:application/x-font-woff',
+        'tif' => 'image/tiff',
+        'tiff' => 'image/tiff',
+        'xbm' => 'image/x-xbitmap',
+    );
+
+    /**
+     * Set the maximum size if files to be imported.
+     *
+     * Files larger than this size (in kB) will not be imported into the CSS.
+     * Importing files into the CSS as data-uri will save you some connections,
+     * but we should only import relatively small decorative images so that our
+     * CSS file doesn't get too bulky.
+     *
+     * @param int $size Size in kB
+     */
+    public function setMaxImportSize($size)
+    {
+        $this->maxImportSize = $size;
+    }
+
+    /**
+     * Set the type of extensions to be imported into the CSS (to save network
+     * connections).
+     * Keys of the array should be the file extensions & respective values
+     * should be the data type.
+     *
+     * @param string[] $extensions Array of file extensions
+     */
+    public function setImportExtensions(array $extensions)
+    {
+        $this->importExtensions = $extensions;
+    }
+
+    /**
+     * Move any import statements to the top.
+     *
+     * @param string $content Nearly finished CSS content
+     *
+     * @return string
+     */
+    protected function moveImportsToTop($content)
+    {
+        if (preg_match_all('/(;?)(@import (?<url>url\()?(?P<quotes>["\']?).+?(?P=quotes)(?(url)\)));?/', $content, $matches)) {
+            // remove from content
+            foreach ($matches[0] as $import) {
+                $content = str_replace($import, '', $content);
+            }
+
+            // add to top
+            $content = implode(';', $matches[2]).';'.trim($content, ';');
+        }
+
+        return $content;
+    }
+
+    /**
+     * Combine CSS from import statements.
+     *
+     * @import's will be loaded and their content merged into the original file,
+     * to save HTTP requests.
+     *
+     * @param string   $source  The file to combine imports for
+     * @param string   $content The CSS content to combine imports for
+     * @param string[] $parents Parent paths, for circular reference checks
+     *
+     * @return string
+     *
+     * @throws FileImportException
+     */
+    protected function combineImports($source, $content, $parents)
+    {
+        $importRegexes = array(
+            // @import url(xxx)
+            '/
+            # import statement
+            @import
+
+            # whitespace
+            \s+
+
+                # open url()
+                url\(
+
+                    # (optional) open path enclosure
+                    (?P<quotes>["\']?)
+
+                        # fetch path
+                        (?P<path>.+?)
+
+                    # (optional) close path enclosure
+                    (?P=quotes)
+
+                # close url()
+                \)
+
+                # (optional) trailing whitespace
+                \s*
+
+                # (optional) media statement(s)
+                (?P<media>[^;]*)
+
+                # (optional) trailing whitespace
+                \s*
+
+            # (optional) closing semi-colon
+            ;?
+
+            /ix',
+
+            // @import 'xxx'
+            '/
+
+            # import statement
+            @import
+
+            # whitespace
+            \s+
+
+                # open path enclosure
+                (?P<quotes>["\'])
+
+                    # fetch path
+                    (?P<path>.+?)
+
+                # close path enclosure
+                (?P=quotes)
+
+                # (optional) trailing whitespace
+                \s*
+
+                # (optional) media statement(s)
+                (?P<media>[^;]*)
+
+                # (optional) trailing whitespace
+                \s*
+
+            # (optional) closing semi-colon
+            ;?
+
+            /ix',
+        );
+
+        // find all relative imports in css
+        $matches = array();
+        foreach ($importRegexes as $importRegex) {
+            if (preg_match_all($importRegex, $content, $regexMatches, PREG_SET_ORDER)) {
+                $matches = array_merge($matches, $regexMatches);
+            }
+        }
+
+        $search = array();
+        $replace = array();
+
+        // loop the matches
+        foreach ($matches as $match) {
+            // get the path for the file that will be imported
+            $importPath = dirname($source).'/'.$match['path'];
+
+            // only replace the import with the content if we can grab the
+            // content of the file
+            if (!$this->canImportByPath($match['path']) || !$this->canImportFile($importPath)) {
+                continue;
+            }
+
+            // check if current file was not imported previously in the same
+            // import chain.
+            if (in_array($importPath, $parents)) {
+                throw new FileImportException('Failed to import file "'.$importPath.'": circular reference detected.');
+            }
+
+            // grab referenced file & minify it (which may include importing
+            // yet other @import statements recursively)
+            $minifier = new static($importPath);
+            $minifier->setMaxImportSize($this->maxImportSize);
+            $minifier->setImportExtensions($this->importExtensions);
+            $importContent = $minifier->execute($source, $parents);
+
+            // check if this is only valid for certain media
+            if (!empty($match['media'])) {
+                $importContent = '@media '.$match['media'].'{'.$importContent.'}';
+            }
+
+            // add to replacement array
+            $search[] = $match[0];
+            $replace[] = $importContent;
+        }
+
+        // replace the import statements
+        return str_replace($search, $replace, $content);
+    }
+
+    /**
+     * Import files into the CSS, base64-ized.
+     *
+     * @url(image.jpg) images will be loaded and their content merged into the
+     * original file, to save HTTP requests.
+     *
+     * @param string $source  The file to import files for
+     * @param string $content The CSS content to import files for
+     *
+     * @return string
+     */
+    protected function importFiles($source, $content)
+    {
+        $regex = '/url\((["\']?)(.+?)\\1\)/i';
+        if ($this->importExtensions && preg_match_all($regex, $content, $matches, PREG_SET_ORDER)) {
+            $search = array();
+            $replace = array();
+
+            // loop the matches
+            foreach ($matches as $match) {
+                $extension = substr(strrchr($match[2], '.'), 1);
+                if ($extension && !array_key_exists($extension, $this->importExtensions)) {
+                    continue;
+                }
+
+                // get the path for the file that will be imported
+                $path = $match[2];
+                $path = dirname($source).'/'.$path;
+
+                // only replace the import with the content if we're able to get
+                // the content of the file, and it's relatively small
+                if ($this->canImportFile($path) && $this->canImportBySize($path)) {
+                    // grab content && base64-ize
+                    $importContent = $this->load($path);
+                    $importContent = base64_encode($importContent);
+
+                    // build replacement
+                    $search[] = $match[0];
+                    $replace[] = 'url('.$this->importExtensions[$extension].';base64,'.$importContent.')';
+                }
+            }
+
+            // replace the import statements
+            $content = str_replace($search, $replace, $content);
+        }
+
+        return $content;
+    }
+
+    /**
+     * Minify the data.
+     * Perform CSS optimizations.
+     *
+     * @param string[optional] $path    Path to write the data to
+     * @param string[]         $parents Parent paths, for circular reference checks
+     *
+     * @return string The minified data
+     */
+    public function execute($path = null, $parents = array())
+    {
+        $content = '';
+
+        // loop CSS data (raw data and files)
+        foreach ($this->data as $source => $css) {
+            /*
+             * Let's first take out strings & comments, since we can't just
+             * remove whitespace anywhere. If whitespace occurs inside a string,
+             * we should leave it alone. E.g.:
+             * p { content: "a   test" }
+             */
+            $this->extractStrings();
+            $this->stripComments();
+            $this->extractCalcs();
+            $css = $this->replace($css);
+
+            $css = $this->stripWhitespace($css);
+            $css = $this->shortenColors($css);
+            $css = $this->shortenZeroes($css);
+            $css = $this->shortenFontWeights($css);
+            $css = $this->stripEmptyTags($css);
+
+            // restore the string we've extracted earlier
+            $css = $this->restoreExtractedData($css);
+
+            $source = is_int($source) ? '' : $source;
+            $parents = $source ? array_merge($parents, array($source)) : $parents;
+            $css = $this->combineImports($source, $css, $parents);
+            $css = $this->importFiles($source, $css);
+
+            /*
+             * If we'll save to a new path, we'll have to fix the relative paths
+             * to be relative no longer to the source file, but to the new path.
+             * If we don't write to a file, fall back to same path so no
+             * conversion happens (because we still want it to go through most
+             * of the move code, which also addresses url() & @import syntax...)
+             */
+            $converter = $this->getPathConverter($source, $path ?: $source);
+            $css = $this->move($converter, $css);
+
+            // combine css
+            $content .= $css;
+        }
+
+        $content = $this->moveImportsToTop($content);
+
+        return $content;
+    }
+
+    /**
+     * Moving a css file should update all relative urls.
+     * Relative references (e.g. ../images/image.gif) in a certain css file,
+     * will have to be updated when a file is being saved at another location
+     * (e.g. ../../images/image.gif, if the new CSS file is 1 folder deeper).
+     *
+     * @param ConverterInterface $converter Relative path converter
+     * @param string             $content   The CSS content to update relative urls for
+     *
+     * @return string
+     */
+    protected function move(ConverterInterface $converter, $content)
+    {
+        /*
+         * Relative path references will usually be enclosed by url(). @import
+         * is an exception, where url() is not necessary around the path (but is
+         * allowed).
+         * This *could* be 1 regular expression, where both regular expressions
+         * in this array are on different sides of a |. But we're using named
+         * patterns in both regexes, the same name on both regexes. This is only
+         * possible with a (?J) modifier, but that only works after a fairly
+         * recent PCRE version. That's why I'm doing 2 separate regular
+         * expressions & combining the matches after executing of both.
+         */
+        $relativeRegexes = array(
+            // url(xxx)
+            '/
+            # open url()
+            url\(
+
+                \s*
+
+                # open path enclosure
+                (?P<quotes>["\'])?
+
+                    # fetch path
+                    (?P<path>.+?)
+
+                # close path enclosure
+                (?(quotes)(?P=quotes))
+
+                \s*
+
+            # close url()
+            \)
+
+            /ix',
+
+            // @import "xxx"
+            '/
+            # import statement
+            @import
+
+            # whitespace
+            \s+
+
+                # we don\'t have to check for @import url(), because the
+                # condition above will already catch these
+
+                # open path enclosure
+                (?P<quotes>["\'])
+
+                    # fetch path
+                    (?P<path>.+?)
+
+                # close path enclosure
+                (?P=quotes)
+
+            /ix',
+        );
+
+        // find all relative urls in css
+        $matches = array();
+        foreach ($relativeRegexes as $relativeRegex) {
+            if (preg_match_all($relativeRegex, $content, $regexMatches, PREG_SET_ORDER)) {
+                $matches = array_merge($matches, $regexMatches);
+            }
+        }
+
+        $search = array();
+        $replace = array();
+
+        // loop all urls
+        foreach ($matches as $match) {
+            // determine if it's a url() or an @import match
+            $type = (strpos($match[0], '@import') === 0 ? 'import' : 'url');
+
+            $url = $match['path'];
+            if ($this->canImportByPath($url)) {
+                // attempting to interpret GET-params makes no sense, so let's discard them for awhile
+                $params = strrchr($url, '?');
+                $url = $params ? substr($url, 0, -strlen($params)) : $url;
+
+                // fix relative url
+                $url = $converter->convert($url);
+
+                // now that the path has been converted, re-apply GET-params
+                $url .= $params;
+            }
+
+            /*
+             * Urls with control characters above 0x7e should be quoted.
+             * According to Mozilla's parser, whitespace is only allowed at the
+             * end of unquoted urls.
+             * Urls with `)` (as could happen with data: uris) should also be
+             * quoted to avoid being confused for the url() closing parentheses.
+             * And urls with a # have also been reported to cause issues.
+             * Urls with quotes inside should also remain escaped.
+             *
+             * @see https://developer.mozilla.org/nl/docs/Web/CSS/url#The_url()_functional_notation
+             * @see https://hg.mozilla.org/mozilla-central/rev/14abca4e7378
+             * @see https://github.com/matthiasmullie/minify/issues/193
+             */
+            $url = trim($url);
+            if (preg_match('/[\s\)\'"#\x{7f}-\x{9f}]/u', $url)) {
+                $url = $match['quotes'] . $url . $match['quotes'];
+            }
+
+            // build replacement
+            $search[] = $match[0];
+            if ($type === 'url') {
+                $replace[] = 'url('.$url.')';
+            } elseif ($type === 'import') {
+                $replace[] = '@import "'.$url.'"';
+            }
+        }
+
+        // replace urls
+        return str_replace($search, $replace, $content);
+    }
+
+    /**
+     * Shorthand hex color codes.
+     * #FF0000 -> #F00.
+     *
+     * @param string $content The CSS content to shorten the hex color codes for
+     *
+     * @return string
+     */
+    protected function shortenColors($content)
+    {
+        $content = preg_replace('/(?<=[: ])#([0-9a-z])\\1([0-9a-z])\\2([0-9a-z])\\3(?:([0-9a-z])\\4)?(?=[; }])/i', '#$1$2$3$4', $content);
+
+        // remove alpha channel if it's pointless...
+        $content = preg_replace('/(?<=[: ])#([0-9a-z]{6})ff?(?=[; }])/i', '#$1', $content);
+        $content = preg_replace('/(?<=[: ])#([0-9a-z]{3})f?(?=[; }])/i', '#$1', $content);
+
+        $colors = array(
+            // we can shorten some even more by replacing them with their color name
+            '#F0FFFF' => 'azure',
+            '#F5F5DC' => 'beige',
+            '#A52A2A' => 'brown',
+            '#FF7F50' => 'coral',
+            '#FFD700' => 'gold',
+            '#808080' => 'gray',
+            '#008000' => 'green',
+            '#4B0082' => 'indigo',
+            '#FFFFF0' => 'ivory',
+            '#F0E68C' => 'khaki',
+            '#FAF0E6' => 'linen',
+            '#800000' => 'maroon',
+            '#000080' => 'navy',
+            '#808000' => 'olive',
+            '#CD853F' => 'peru',
+            '#FFC0CB' => 'pink',
+            '#DDA0DD' => 'plum',
+            '#800080' => 'purple',
+            '#F00' => 'red',
+            '#FA8072' => 'salmon',
+            '#A0522D' => 'sienna',
+            '#C0C0C0' => 'silver',
+            '#FFFAFA' => 'snow',
+            '#D2B48C' => 'tan',
+            '#FF6347' => 'tomato',
+            '#EE82EE' => 'violet',
+            '#F5DEB3' => 'wheat',
+            // or the other way around
+            'WHITE' => '#fff',
+            'BLACK' => '#000',
+        );
+
+        return preg_replace_callback(
+            '/(?<=[: ])('.implode('|', array_keys($colors)).')(?=[; }])/i',
+            function ($match) use ($colors) {
+                return $colors[strtoupper($match[0])];
+            },
+            $content
+        );
+    }
+
+    /**
+     * Shorten CSS font weights.
+     *
+     * @param string $content The CSS content to shorten the font weights for
+     *
+     * @return string
+     */
+    protected function shortenFontWeights($content)
+    {
+        $weights = array(
+            'normal' => 400,
+            'bold' => 700,
+        );
+
+        $callback = function ($match) use ($weights) {
+            return $match[1].$weights[$match[2]];
+        };
+
+        return preg_replace_callback('/(font-weight\s*:\s*)('.implode('|', array_keys($weights)).')(?=[;}])/', $callback, $content);
+    }
+
+    /**
+     * Shorthand 0 values to plain 0, instead of e.g. -0em.
+     *
+     * @param string $content The CSS content to shorten the zero values for
+     *
+     * @return string
+     */
+    protected function shortenZeroes($content)
+    {
+        // we don't want to strip units in `calc()` expressions:
+        // `5px - 0px` is valid, but `5px - 0` is not
+        // `10px * 0` is valid (equates to 0), and so is `10 * 0px`, but
+        // `10 * 0` is invalid
+        // we've extracted calcs earlier, so we don't need to worry about this
+
+        // reusable bits of code throughout these regexes:
+        // before & after are used to make sure we don't match lose unintended
+        // 0-like values (e.g. in #000, or in http://url/1.0)
+        // units can be stripped from 0 values, or used to recognize non 0
+        // values (where wa may be able to strip a .0 suffix)
+        $before = '(?<=[:(, ])';
+        $after = '(?=[ ,);}])';
+        $units = '(em|ex|%|px|cm|mm|in|pt|pc|ch|rem|vh|vw|vmin|vmax|vm)';
+
+        // strip units after zeroes (0px -> 0)
+        // NOTE: it should be safe to remove all units for a 0 value, but in
+        // practice, Webkit (especially Safari) seems to stumble over at least
+        // 0%, potentially other units as well. Only stripping 'px' for now.
+        // @see https://github.com/matthiasmullie/minify/issues/60
+        $content = preg_replace('/'.$before.'(-?0*(\.0+)?)(?<=0)px'.$after.'/', '\\1', $content);
+
+        // strip 0-digits (.0 -> 0)
+        $content = preg_replace('/'.$before.'\.0+'.$units.'?'.$after.'/', '0\\1', $content);
+        // strip trailing 0: 50.10 -> 50.1, 50.10px -> 50.1px
+        $content = preg_replace('/'.$before.'(-?[0-9]+\.[0-9]+)0+'.$units.'?'.$after.'/', '\\1\\2', $content);
+        // strip trailing 0: 50.00 -> 50, 50.00px -> 50px
+        $content = preg_replace('/'.$before.'(-?[0-9]+)\.0+'.$units.'?'.$after.'/', '\\1\\2', $content);
+        // strip leading 0: 0.1 -> .1, 01.1 -> 1.1
+        $content = preg_replace('/'.$before.'(-?)0+([0-9]*\.[0-9]+)'.$units.'?'.$after.'/', '\\1\\2\\3', $content);
+
+        // strip negative zeroes (-0 -> 0) & truncate zeroes (00 -> 0)
+        $content = preg_replace('/'.$before.'-?0+'.$units.'?'.$after.'/', '0\\1', $content);
+
+        // IE doesn't seem to understand a unitless flex-basis value (correct -
+        // it goes against the spec), so let's add it in again (make it `%`,
+        // which is only 1 char: 0%, 0px, 0 anything, it's all just the same)
+        // @see https://developer.mozilla.org/nl/docs/Web/CSS/flex
+        $content = preg_replace('/flex:([0-9]+\s[0-9]+\s)0([;\}])/', 'flex:${1}0%${2}', $content);
+        $content = preg_replace('/flex-basis:0([;\}])/', 'flex-basis:0%${1}', $content);
+
+        return $content;
+    }
+
+    /**
+     * Strip empty tags from source code.
+     *
+     * @param string $content
+     *
+     * @return string
+     */
+    protected function stripEmptyTags($content)
+    {
+        $content = preg_replace('/(?<=^)[^\{\};]+\{\s*\}/', '', $content);
+        $content = preg_replace('/(?<=(\}|;))[^\{\};]+\{\s*\}/', '', $content);
+
+        return $content;
+    }
+
+    /**
+     * Strip comments from source code.
+     */
+    protected function stripComments()
+    {
+        // PHP only supports $this inside anonymous functions since 5.4
+        $minifier = $this;
+        $callback = function ($match) use ($minifier) {
+            $count = count($minifier->extracted);
+            $placeholder = '/*'.$count.'*/';
+            $minifier->extracted[$placeholder] = $match[0];
+
+            return $placeholder;
+        };
+        $this->registerPattern('/\n?\/\*(!|.*?@license|.*?@preserve).*?\*\/\n?/s', $callback);
+
+        $this->registerPattern('/\/\*.*?\*\//s', '');
+    }
+
+    /**
+     * Strip whitespace.
+     *
+     * @param string $content The CSS content to strip the whitespace for
+     *
+     * @return string
+     */
+    protected function stripWhitespace($content)
+    {
+        // remove leading & trailing whitespace
+        $content = preg_replace('/^\s*/m', '', $content);
+        $content = preg_replace('/\s*$/m', '', $content);
+
+        // replace newlines with a single space
+        $content = preg_replace('/\s+/', ' ', $content);
+
+        // remove whitespace around meta characters
+        // inspired by stackoverflow.com/questions/15195750/minify-compress-css-with-regex
+        $content = preg_replace('/\s*([\*$~^|]?+=|[{};,>~]|!important\b)\s*/', '$1', $content);
+        $content = preg_replace('/([\[(:>\+])\s+/', '$1', $content);
+        $content = preg_replace('/\s+([\]\)>\+])/', '$1', $content);
+        $content = preg_replace('/\s+(:)(?![^\}]*\{)/', '$1', $content);
+
+        // whitespace around + and - can only be stripped inside some pseudo-
+        // classes, like `:nth-child(3+2n)`
+        // not in things like `calc(3px + 2px)`, shorthands like `3px -2px`, or
+        // selectors like `div.weird- p`
+        $pseudos = array('nth-child', 'nth-last-child', 'nth-last-of-type', 'nth-of-type');
+        $content = preg_replace('/:('.implode('|', $pseudos).')\(\s*([+-]?)\s*(.+?)\s*([+-]?)\s*(.*?)\s*\)/', ':$1($2$3$4$5)', $content);
+
+        // remove semicolon/whitespace followed by closing bracket
+        $content = str_replace(';}', '}', $content);
+
+        return trim($content);
+    }
+
+    /**
+     * Replace all `calc()` occurrences.
+     */
+    protected function extractCalcs()
+    {
+        // PHP only supports $this inside anonymous functions since 5.4
+        $minifier = $this;
+        $callback = function ($match) use ($minifier) {
+            $length = strlen($match[1]);
+            $expr = '';
+            $opened = 0;
+
+            for ($i = 0; $i < $length; $i++) {
+                $char = $match[1][$i];
+                $expr .= $char;
+                if ($char === '(') {
+                    $opened++;
+                } elseif ($char === ')' && --$opened === 0) {
+                    break;
+                }
+            }
+            $rest = str_replace($expr, '', $match[1]);
+            $expr = trim(substr($expr, 1, -1));
+
+            $count = count($minifier->extracted);
+            $placeholder = 'calc('.$count.')';
+            $minifier->extracted[$placeholder] = 'calc('.$expr.')';
+
+            return $placeholder.$rest;
+        };
+
+        $this->registerPattern('/calc(\(.+?)(?=$|;|}|calc\()/', $callback);
+        $this->registerPattern('/calc(\(.+?)(?=$|;|}|calc\()/m', $callback);
+    }
+
+    /**
+     * Check if file is small enough to be imported.
+     *
+     * @param string $path The path to the file
+     *
+     * @return bool
+     */
+    protected function canImportBySize($path)
+    {
+        return ($size = @filesize($path)) && $size <= $this->maxImportSize * 1024;
+    }
+
+    /**
+     * Check if file a file can be imported, going by the path.
+     *
+     * @param string $path
+     *
+     * @return bool
+     */
+    protected function canImportByPath($path)
+    {
+        return preg_match('/^(data:|https?:|\\/)/', $path) === 0;
+    }
+
+    /**
+     * Return a converter to update relative paths to be relative to the new
+     * destination.
+     *
+     * @param string $source
+     * @param string $target
+     *
+     * @return ConverterInterface
+     */
+    protected function getPathConverter($source, $target)
+    {
+        return new Converter($source, $target);
+    }
+}
diff --git a/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/Exception.php b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/Exception.php
new file mode 100644
index 0000000..d03898f
--- /dev/null
+++ b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/Exception.php
@@ -0,0 +1,20 @@
+<?php
+/**
+ * Base Exception
+ *
+ * @deprecated Use Exceptions\BasicException instead
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ */
+namespace MatthiasMullie\Minify;
+
+/**
+ * Base Exception Class
+ * @deprecated Use Exceptions\BasicException instead
+ *
+ * @package Minify
+ * @author Matthias Mullie <minify@mullie.eu>
+ */
+abstract class Exception extends \Exception
+{
+}
diff --git a/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/Exceptions/BasicException.php b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/Exceptions/BasicException.php
new file mode 100644
index 0000000..af5e81b
--- /dev/null
+++ b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/Exceptions/BasicException.php
@@ -0,0 +1,23 @@
+<?php
+/**
+ * Basic exception
+ *
+ * Please report bugs on https://github.com/matthiasmullie/minify/issues
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
+ * @license MIT License
+ */
+namespace MatthiasMullie\Minify\Exceptions;
+
+use MatthiasMullie\Minify\Exception;
+
+/**
+ * Basic Exception Class
+ *
+ * @package Minify\Exception
+ * @author Matthias Mullie <minify@mullie.eu>
+ */
+abstract class BasicException extends Exception
+{
+}
diff --git a/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/Exceptions/FileImportException.php b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/Exceptions/FileImportException.php
new file mode 100644
index 0000000..912a2c9
--- /dev/null
+++ b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/Exceptions/FileImportException.php
@@ -0,0 +1,21 @@
+<?php
+/**
+ * File Import Exception
+ *
+ * Please report bugs on https://github.com/matthiasmullie/minify/issues
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
+ * @license MIT License
+ */
+namespace MatthiasMullie\Minify\Exceptions;
+
+/**
+ * File Import Exception Class
+ *
+ * @package Minify\Exception
+ * @author Matthias Mullie <minify@mullie.eu>
+ */
+class FileImportException extends BasicException
+{
+}
diff --git a/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/Exceptions/IOException.php b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/Exceptions/IOException.php
new file mode 100644
index 0000000..b172eb4
--- /dev/null
+++ b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/Exceptions/IOException.php
@@ -0,0 +1,21 @@
+<?php
+/**
+ * IO Exception
+ *
+ * Please report bugs on https://github.com/matthiasmullie/minify/issues
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
+ * @license MIT License
+ */
+namespace MatthiasMullie\Minify\Exceptions;
+
+/**
+ * IO Exception Class
+ *
+ * @package Minify\Exception
+ * @author Matthias Mullie <minify@mullie.eu>
+ */
+class IOException extends BasicException
+{
+}
diff --git a/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/JS.php b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/JS.php
new file mode 100644
index 0000000..92389cd
--- /dev/null
+++ b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/JS.php
@@ -0,0 +1,612 @@
+<?php
+/**
+ * JavaScript minifier
+ *
+ * Please report bugs on https://github.com/matthiasmullie/minify/issues
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
+ * @license MIT License
+ */
+namespace MatthiasMullie\Minify;
+
+/**
+ * JavaScript Minifier Class
+ *
+ * Please report bugs on https://github.com/matthiasmullie/minify/issues
+ *
+ * @package Minify
+ * @author Matthias Mullie <minify@mullie.eu>
+ * @author Tijs Verkoyen <minify@verkoyen.eu>
+ * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
+ * @license MIT License
+ */
+class JS extends Minify
+{
+    /**
+     * Var-matching regex based on http://stackoverflow.com/a/9337047/802993.
+     *
+     * Note that regular expressions using that bit must have the PCRE_UTF8
+     * pattern modifier (/u) set.
+     *
+     * @var string
+     */
+    const REGEX_VARIABLE = 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+
+    /**
+     * Full list of JavaScript reserved words.
+     * Will be loaded from /data/js/keywords_reserved.txt.
+     *
+     * @see https://mathiasbynens.be/notes/reserved-keywords
+     *
+     * @var string[]
+     */
+    protected $keywordsReserved = array();
+
+    /**
+     * List of JavaScript reserved words that accept a <variable, value, ...>
+     * after them. Some end of lines are not the end of a statement, like with
+     * these keywords.
+     *
+     * E.g.: we shouldn't insert a ; after this else
+     * else
+     *     console.log('this is quite fine')
+     *
+     * Will be loaded from /data/js/keywords_before.txt
+     *
+     * @var string[]
+     */
+    protected $keywordsBefore = array();
+
+    /**
+     * List of JavaScript reserved words that accept a <variable, value, ...>
+     * before them. Some end of lines are not the end of a statement, like when
+     * continued by one of these keywords on the newline.
+     *
+     * E.g.: we shouldn't insert a ; before this instanceof
+     * variable
+     *     instanceof String
+     *
+     * Will be loaded from /data/js/keywords_after.txt
+     *
+     * @var string[]
+     */
+    protected $keywordsAfter = array();
+
+    /**
+     * List of all JavaScript operators.
+     *
+     * Will be loaded from /data/js/operators.txt
+     *
+     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Expressions_and_Operators
+     *
+     * @var string[]
+     */
+    protected $operators = array();
+
+    /**
+     * List of JavaScript operators that accept a <variable, value, ...> after
+     * them. Some end of lines are not the end of a statement, like with these
+     * operators.
+     *
+     * Note: Most operators are fine, we've only removed ++ and --.
+     * ++ & -- have to be joined with the value they're in-/decrementing.
+     *
+     * Will be loaded from /data/js/operators_before.txt
+     *
+     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Expressions_and_Operators
+     *
+     * @var string[]
+     */
+    protected $operatorsBefore = array();
+
+    /**
+     * List of JavaScript operators that accept a <variable, value, ...> before
+     * them. Some end of lines are not the end of a statement, like when
+     * continued by one of these operators on the newline.
+     *
+     * Note: Most operators are fine, we've only removed ), ], ++, --, ! and ~.
+     * There can't be a newline separating ! or ~ and whatever it is negating.
+     * ++ & -- have to be joined with the value they're in-/decrementing.
+     * ) & ] are "special" in that they have lots or usecases. () for example
+     * is used for function calls, for grouping, in if () and for (), ...
+     *
+     * Will be loaded from /data/js/operators_after.txt
+     *
+     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Expressions_and_Operators
+     *
+     * @var string[]
+     */
+    protected $operatorsAfter = array();
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __construct()
+    {
+        call_user_func_array(array('parent', '__construct'), func_get_args());
+
+        $dataDir = __DIR__.'/../data/js/';
+        $options = FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES;
+        $this->keywordsReserved = file($dataDir.'keywords_reserved.txt', $options);
+        $this->keywordsBefore = file($dataDir.'keywords_before.txt', $options);
+        $this->keywordsAfter = file($dataDir.'keywords_after.txt', $options);
+        $this->operators = file($dataDir.'operators.txt', $options);
+        $this->operatorsBefore = file($dataDir.'operators_before.txt', $options);
+        $this->operatorsAfter = file($dataDir.'operators_after.txt', $options);
+    }
+
+    /**
+     * Minify the data.
+     * Perform JS optimizations.
+     *
+     * @param string[optional] $path Path to write the data to
+     *
+     * @return string The minified data
+     */
+    public function execute($path = null)
+    {
+        $content = '';
+
+        /*
+         * Let's first take out strings, comments and regular expressions.
+         * All of these can contain JS code-like characters, and we should make
+         * sure any further magic ignores anything inside of these.
+         *
+         * Consider this example, where we should not strip any whitespace:
+         * var str = "a   test";
+         *
+         * Comments will be removed altogether, strings and regular expressions
+         * will be replaced by placeholder text, which we'll restore later.
+         */
+        $this->extractStrings('\'"`');
+        $this->stripComments();
+        $this->extractRegex();
+
+        // loop files
+        foreach ($this->data as $source => $js) {
+            // take out strings, comments & regex (for which we've registered
+            // the regexes just a few lines earlier)
+            $js = $this->replace($js);
+
+            $js = $this->propertyNotation($js);
+            $js = $this->shortenBools($js);
+            $js = $this->stripWhitespace($js);
+
+            // combine js: separating the scripts by a ;
+            $content .= $js.";";
+        }
+
+        // clean up leftover `;`s from the combination of multiple scripts
+        $content = ltrim($content, ';');
+        $content = (string) substr($content, 0, -1);
+
+        /*
+         * Earlier, we extracted strings & regular expressions and replaced them
+         * with placeholder text. This will restore them.
+         */
+        $content = $this->restoreExtractedData($content);
+
+        return $content;
+    }
+
+    /**
+     * Strip comments from source code.
+     */
+    protected function stripComments()
+    {
+        // PHP only supports $this inside anonymous functions since 5.4
+        $minifier = $this;
+        $callback = function ($match) use ($minifier) {
+            $count = count($minifier->extracted);
+            $placeholder = '/*'.$count.'*/';
+            $minifier->extracted[$placeholder] = $match[0];
+
+            return $placeholder;
+        };
+        // multi-line comments
+        $this->registerPattern('/\n?\/\*(!|.*?@license|.*?@preserve).*?\*\/\n?/s', $callback);
+        $this->registerPattern('/\/\*.*?\*\//s', '');
+
+        // single-line comments
+        $this->registerPattern('/\/\/.*$/m', '');
+    }
+
+    /**
+     * JS can have /-delimited regular expressions, like: /ab+c/.match(string).
+     *
+     * The content inside the regex can contain characters that may be confused
+     * for JS code: e.g. it could contain whitespace it needs to match & we
+     * don't want to strip whitespace in there.
+     *
+     * The regex can be pretty simple: we don't have to care about comments,
+     * (which also use slashes) because stripComments() will have stripped those
+     * already.
+     *
+     * This method will replace all string content with simple REGEX#
+     * placeholder text, so we've rid all regular expressions from characters
+     * that may be misinterpreted. Original regex content will be saved in
+     * $this->extracted and after doing all other minifying, we can restore the
+     * original content via restoreRegex()
+     */
+    protected function extractRegex()
+    {
+        // PHP only supports $this inside anonymous functions since 5.4
+        $minifier = $this;
+        $callback = function ($match) use ($minifier) {
+            $count = count($minifier->extracted);
+            $placeholder = '"'.$count.'"';
+            $minifier->extracted[$placeholder] = $match[0];
+
+            return $placeholder;
+        };
+
+        // match all chars except `/` and `\`
+        // `\` is allowed though, along with whatever char follows (which is the
+        // one being escaped)
+        // this should allow all chars, except for an unescaped `/` (= the one
+        // closing the regex)
+        // then also ignore bare `/` inside `[]`, where they don't need to be
+        // escaped: anything inside `[]` can be ignored safely
+        $pattern = '\\/(?!\*)(?:[^\\[\\/\\\\\n\r]++|(?:\\\\.)++|(?:\\[(?:[^\\]\\\\\n\r]++|(?:\\\\.)++)++\\])++)++\\/[gimuy]*';
+
+        // a regular expression can only be followed by a few operators or some
+        // of the RegExp methods (a `\` followed by a variable or value is
+        // likely part of a division, not a regex)
+        $keywords = array('do', 'in', 'new', 'else', 'throw', 'yield', 'delete', 'return',  'typeof');
+        $before = '([=:,;\+\-\*\/\}\(\{\[&\|!]|^|'.implode('|', $keywords).')\s*';
+        $propertiesAndMethods = array(
+            // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp#Properties_2
+            'constructor',
+            'flags',
+            'global',
+            'ignoreCase',
+            'multiline',
+            'source',
+            'sticky',
+            'unicode',
+            // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp#Methods_2
+            'compile(',
+            'exec(',
+            'test(',
+            'toSource(',
+            'toString(',
+        );
+        $delimiters = array_fill(0, count($propertiesAndMethods), '/');
+        $propertiesAndMethods = array_map('preg_quote', $propertiesAndMethods, $delimiters);
+        $after = '(?=\s*([\.,;\)\}&\|+]|\/\/|$|\.('.implode('|', $propertiesAndMethods).')))';
+        $this->registerPattern('/'.$before.'\K'.$pattern.$after.'/', $callback);
+
+        // regular expressions following a `)` are rather annoying to detect...
+        // quite often, `/` after `)` is a division operator & if it happens to
+        // be followed by another one (or a comment), it is likely to be
+        // confused for a regular expression
+        // however, it's perfectly possible for a regex to follow a `)`: after
+        // a single-line `if()`, `while()`, ... statement, for example
+        // since, when they occur like that, they're always the start of a
+        // statement, there's only a limited amount of ways they can be useful:
+        // by calling the regex methods directly
+        // if a regex following `)` is not followed by `.<property or method>`,
+        // it's quite likely not a regex
+        $before = '\)\s*';
+        $after = '(?=\s*\.('.implode('|', $propertiesAndMethods).'))';
+        $this->registerPattern('/'.$before.'\K'.$pattern.$after.'/', $callback);
+
+        // 1 more edge case: a regex can be followed by a lot more operators or
+        // keywords if there's a newline (ASI) in between, where the operator
+        // actually starts a new statement
+        // (https://github.com/matthiasmullie/minify/issues/56)
+        $operators = $this->getOperatorsForRegex($this->operatorsBefore, '/');
+        $operators += $this->getOperatorsForRegex($this->keywordsReserved, '/');
+        $after = '(?=\s*\n\s*('.implode('|', $operators).'))';
+        $this->registerPattern('/'.$pattern.$after.'/', $callback);
+    }
+
+    /**
+     * Strip whitespace.
+     *
+     * We won't strip *all* whitespace, but as much as possible. The thing that
+     * we'll preserve are newlines we're unsure about.
+     * JavaScript doesn't require statements to be terminated with a semicolon.
+     * It will automatically fix missing semicolons with ASI (automatic semi-
+     * colon insertion) at the end of line causing errors (without semicolon.)
+     *
+     * Because it's sometimes hard to tell if a newline is part of a statement
+     * that should be terminated or not, we'll just leave some of them alone.
+     *
+     * @param string $content The content to strip the whitespace for
+     *
+     * @return string
+     */
+    protected function stripWhitespace($content)
+    {
+        // uniform line endings, make them all line feed
+        $content = str_replace(array("\r\n", "\r"), "\n", $content);
+
+        // collapse all non-line feed whitespace into a single space
+        $content = preg_replace('/[^\S\n]+/', ' ', $content);
+
+        // strip leading & trailing whitespace
+        $content = str_replace(array(" \n", "\n "), "\n", $content);
+
+        // collapse consecutive line feeds into just 1
+        $content = preg_replace('/\n+/', "\n", $content);
+
+        $operatorsBefore = $this->getOperatorsForRegex($this->operatorsBefore, '/');
+        $operatorsAfter = $this->getOperatorsForRegex($this->operatorsAfter, '/');
+        $operators = $this->getOperatorsForRegex($this->operators, '/');
+        $keywordsBefore = $this->getKeywordsForRegex($this->keywordsBefore, '/');
+        $keywordsAfter = $this->getKeywordsForRegex($this->keywordsAfter, '/');
+
+        // strip whitespace that ends in (or next line begin with) an operator
+        // that allows statements to be broken up over multiple lines
+        unset($operatorsBefore['+'], $operatorsBefore['-'], $operatorsAfter['+'], $operatorsAfter['-']);
+        $content = preg_replace(
+            array(
+                '/('.implode('|', $operatorsBefore).')\s+/',
+                '/\s+('.implode('|', $operatorsAfter).')/',
+            ),
+            '\\1',
+            $content
+        );
+
+        // make sure + and - can't be mistaken for, or joined into ++ and --
+        $content = preg_replace(
+            array(
+                '/(?<![\+\-])\s*([\+\-])(?![\+\-])/',
+                '/(?<![\+\-])([\+\-])\s*(?![\+\-])/',
+            ),
+            '\\1',
+            $content
+        );
+
+        // collapse whitespace around reserved words into single space
+        $content = preg_replace('/(^|[;\}\s])\K('.implode('|', $keywordsBefore).')\s+/', '\\2 ', $content);
+        $content = preg_replace('/\s+('.implode('|', $keywordsAfter).')(?=([;\{\s]|$))/', ' \\1', $content);
+
+        /*
+         * We didn't strip whitespace after a couple of operators because they
+         * could be used in different contexts and we can't be sure it's ok to
+         * strip the newlines. However, we can safely strip any non-line feed
+         * whitespace that follows them.
+         */
+        $operatorsDiffBefore = array_diff($operators, $operatorsBefore);
+        $operatorsDiffAfter = array_diff($operators, $operatorsAfter);
+        $content = preg_replace('/('.implode('|', $operatorsDiffBefore).')[^\S\n]+/', '\\1', $content);
+        $content = preg_replace('/[^\S\n]+('.implode('|', $operatorsDiffAfter).')/', '\\1', $content);
+
+        /*
+         * Whitespace after `return` can be omitted in a few occasions
+         * (such as when followed by a string or regex)
+         * Same for whitespace in between `)` and `{`, or between `{` and some
+         * keywords.
+         */
+        $content = preg_replace('/\breturn\s+(["\'\/\+\-])/', 'return$1', $content);
+        $content = preg_replace('/\)\s+\{/', '){', $content);
+        $content = preg_replace('/}\n(else|catch|finally)\b/', '}$1', $content);
+
+        /*
+         * Get rid of double semicolons, except where they can be used like:
+         * "for(v=1,_=b;;)", "for(v=1;;v++)" or "for(;;ja||(ja=true))".
+         * I'll safeguard these double semicolons inside for-loops by
+         * temporarily replacing them with an invalid condition: they won't have
+         * a double semicolon and will be easy to spot to restore afterwards.
+         */
+        $content = preg_replace('/\bfor\(([^;]*);;([^;]*)\)/', 'for(\\1;-;\\2)', $content);
+        $content = preg_replace('/;+/', ';', $content);
+        $content = preg_replace('/\bfor\(([^;]*);-;([^;]*)\)/', 'for(\\1;;\\2)', $content);
+
+        /*
+         * Next, we'll be removing all semicolons where ASI kicks in.
+         * for-loops however, can have an empty body (ending in only a
+         * semicolon), like: `for(i=1;i<3;i++);`, of `for(i in list);`
+         * Here, nothing happens during the loop; it's just used to keep
+         * increasing `i`. With that ; omitted, the next line would be expected
+         * to be the for-loop's body... Same goes for while loops.
+         * I'm going to double that semicolon (if any) so after the next line,
+         * which strips semicolons here & there, we're still left with this one.
+         */
+        $content = preg_replace('/(for\([^;\{]*;[^;\{]*;[^;\{]*\));(\}|$)/s', '\\1;;\\2', $content);
+        $content = preg_replace('/(for\([^;\{]+\s+in\s+[^;\{]+\));(\}|$)/s', '\\1;;\\2', $content);
+        /*
+         * Below will also keep `;` after a `do{}while();` along with `while();`
+         * While these could be stripped after do-while, detecting this
+         * distinction is cumbersome, so I'll play it safe and make sure `;`
+         * after any kind of `while` is kept.
+         */
+        $content = preg_replace('/(while\([^;\{]+\));(\}|$)/s', '\\1;;\\2', $content);
+
+        /*
+         * We also can't strip empty else-statements. Even though they're
+         * useless and probably shouldn't be in the code in the first place, we
+         * shouldn't be stripping the `;` that follows it as it breaks the code.
+         * We can just remove those useless else-statements completely.
+         *
+         * @see https://github.com/matthiasmullie/minify/issues/91
+         */
+        $content = preg_replace('/else;/s', '', $content);
+
+        /*
+         * We also don't really want to terminate statements followed by closing
+         * curly braces (which we've ignored completely up until now) or end-of-
+         * script: ASI will kick in here & we're all about minifying.
+         * Semicolons at beginning of the file don't make any sense either.
+         */
+        $content = preg_replace('/;(\}|$)/s', '\\1', $content);
+        $content = ltrim($content, ';');
+
+        // get rid of remaining whitespace af beginning/end
+        return trim($content);
+    }
+
+    /**
+     * We'll strip whitespace around certain operators with regular expressions.
+     * This will prepare the given array by escaping all characters.
+     *
+     * @param string[] $operators
+     * @param string   $delimiter
+     *
+     * @return string[]
+     */
+    protected function getOperatorsForRegex(array $operators, $delimiter = '/')
+    {
+        // escape operators for use in regex
+        $delimiters = array_fill(0, count($operators), $delimiter);
+        $escaped = array_map('preg_quote', $operators, $delimiters);
+
+        $operators = array_combine($operators, $escaped);
+
+        // ignore + & - for now, they'll get special treatment
+        unset($operators['+'], $operators['-']);
+
+        // dot can not just immediately follow a number; it can be confused for
+        // decimal point, or calling a method on it, e.g. 42 .toString()
+        $operators['.'] = '(?<![0-9]\s)\.';
+
+        // don't confuse = with other assignment shortcuts (e.g. +=)
+        $chars = preg_quote('+-*\=<>%&|', $delimiter);
+        $operators['='] = '(?<!['.$chars.'])\=';
+
+        return $operators;
+    }
+
+    /**
+     * We'll strip whitespace around certain keywords with regular expressions.
+     * This will prepare the given array by escaping all characters.
+     *
+     * @param string[] $keywords
+     * @param string   $delimiter
+     *
+     * @return string[]
+     */
+    protected function getKeywordsForRegex(array $keywords, $delimiter = '/')
+    {
+        // escape keywords for use in regex
+        $delimiter = array_fill(0, count($keywords), $delimiter);
+        $escaped = array_map('preg_quote', $keywords, $delimiter);
+
+        // add word boundaries
+        array_walk($keywords, function ($value) {
+            return '\b'.$value.'\b';
+        });
+
+        $keywords = array_combine($keywords, $escaped);
+
+        return $keywords;
+    }
+
+    /**
+     * Replaces all occurrences of array['key'] by array.key.
+     *
+     * @param string $content
+     *
+     * @return string
+     */
+    protected function propertyNotation($content)
+    {
+        // PHP only supports $this inside anonymous functions since 5.4
+        $minifier = $this;
+        $keywords = $this->keywordsReserved;
+        $callback = function ($match) use ($minifier, $keywords) {
+            $property = trim($minifier->extracted[$match[1]], '\'"');
+
+            /*
+             * Check if the property is a reserved keyword. In this context (as
+             * property of an object literal/array) it shouldn't matter, but IE8
+             * freaks out with "Expected identifier".
+             */
+            if (in_array($property, $keywords)) {
+                return $match[0];
+            }
+
+            /*
+             * See if the property is in a variable-like format (e.g.
+             * array['key-here'] can't be replaced by array.key-here since '-'
+             * is not a valid character there.
+             */
+            if (!preg_match('/^'.$minifier::REGEX_VARIABLE.'$/u', $property)) {
+                return $match[0];
+            }
+
+            return '.'.$property;
+        };
+
+        /*
+         * Figure out if previous character is a variable name (of the array
+         * we want to use property notation on) - this is to make sure
+         * standalone ['value'] arrays aren't confused for keys-of-an-array.
+         * We can (and only have to) check the last character, because PHP's
+         * regex implementation doesn't allow unfixed-length look-behind
+         * assertions.
+         */
+        preg_match('/(\[[^\]]+\])[^\]]*$/', static::REGEX_VARIABLE, $previousChar);
+        $previousChar = $previousChar[1];
+
+        /*
+         * Make sure word preceding the ['value'] is not a keyword, e.g.
+         * return['x']. Because -again- PHP's regex implementation doesn't allow
+         * unfixed-length look-behind assertions, I'm just going to do a lot of
+         * separate look-behind assertions, one for each keyword.
+         */
+        $keywords = $this->getKeywordsForRegex($keywords);
+        $keywords = '(?<!'.implode(')(?<!', $keywords).')';
+
+        return preg_replace_callback('/(?<='.$previousChar.'|\])'.$keywords.'\[\s*(([\'"])[0-9]+\\2)\s*\]/u', $callback, $content);
+    }
+
+    /**
+     * Replaces true & false by !0 and !1.
+     *
+     * @param string $content
+     *
+     * @return string
+     */
+    protected function shortenBools($content)
+    {
+        /*
+         * 'true' or 'false' could be used as property names (which may be
+         * followed by whitespace) - we must not replace those!
+         * Since PHP doesn't allow variable-length (to account for the
+         * whitespace) lookbehind assertions, I need to capture the leading
+         * character and check if it's a `.`
+         */
+        $callback = function ($match) {
+            if (trim($match[1]) === '.') {
+                return $match[0];
+            }
+
+            return $match[1].($match[2] === 'true' ? '!0' : '!1');
+        };
+        $content = preg_replace_callback('/(^|.\s*)\b(true|false)\b(?!:)/', $callback, $content);
+
+        // for(;;) is exactly the same as while(true), but shorter :)
+        $content = preg_replace('/\bwhile\(!0\){/', 'for(;;){', $content);
+
+        // now make sure we didn't turn any do ... while(true) into do ... for(;;)
+        preg_match_all('/\bdo\b/', $content, $dos, PREG_OFFSET_CAPTURE | PREG_SET_ORDER);
+
+        // go backward to make sure positional offsets aren't altered when $content changes
+        $dos = array_reverse($dos);
+        foreach ($dos as $do) {
+            $offsetDo = $do[0][1];
+
+            // find all `while` (now `for`) following `do`: one of those must be
+            // associated with the `do` and be turned back into `while`
+            preg_match_all('/\bfor\(;;\)/', $content, $whiles, PREG_OFFSET_CAPTURE | PREG_SET_ORDER, $offsetDo);
+            foreach ($whiles as $while) {
+                $offsetWhile = $while[0][1];
+
+                $open = substr_count($content, '{', $offsetDo, $offsetWhile - $offsetDo);
+                $close = substr_count($content, '}', $offsetDo, $offsetWhile - $offsetDo);
+                if ($open === $close) {
+                    // only restore `while` if amount of `{` and `}` are the same;
+                    // otherwise, that `for` isn't associated with this `do`
+                    $content = substr_replace($content, 'while(!0)', $offsetWhile, strlen('for(;;)'));
+                    break;
+                }
+            }
+        }
+
+        return $content;
+    }
+}
diff --git a/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/Minify.php b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/Minify.php
new file mode 100644
index 0000000..3f40bc1
--- /dev/null
+++ b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/matthiasmullie/minify/src/Minify.php
@@ -0,0 +1,497 @@
+<?php
+/**
+ * Abstract minifier class
+ *
+ * Please report bugs on https://github.com/matthiasmullie/minify/issues
+ *
+ * @author Matthias Mullie <minify@mullie.eu>
+ * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
+ * @license MIT License
+ */
+namespace MatthiasMullie\Minify;
+
+use MatthiasMullie\Minify\Exceptions\IOException;
+use Psr\Cache\CacheItemInterface;
+
+/**
+ * Abstract minifier class.
+ *
+ * Please report bugs on https://github.com/matthiasmullie/minify/issues
+ *
+ * @package Minify
+ * @author Matthias Mullie <minify@mullie.eu>
+ * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved
+ * @license MIT License
+ */
+abstract class Minify
+{
+    /**
+     * The data to be minified.
+     *
+     * @var string[]
+     */
+    protected $data = array();
+
+    /**
+     * Array of patterns to match.
+     *
+     * @var string[]
+     */
+    protected $patterns = array();
+
+    /**
+     * This array will hold content of strings and regular expressions that have
+     * been extracted from the JS source code, so we can reliably match "code",
+     * without having to worry about potential "code-like" characters inside.
+     *
+     * @var string[]
+     */
+    public $extracted = array();
+
+    /**
+     * Init the minify class - optionally, code may be passed along already.
+     */
+    public function __construct(/* $data = null, ... */)
+    {
+        // it's possible to add the source through the constructor as well ;)
+        if (func_num_args()) {
+            call_user_func_array(array($this, 'add'), func_get_args());
+        }
+    }
+
+    /**
+     * Add a file or straight-up code to be minified.
+     *
+     * @param string|string[] $data
+     *
+     * @return static
+     */
+    public function add($data /* $data = null, ... */)
+    {
+        // bogus "usage" of parameter $data: scrutinizer warns this variable is
+        // not used (we're using func_get_args instead to support overloading),
+        // but it still needs to be defined because it makes no sense to have
+        // this function without argument :)
+        $args = array($data) + func_get_args();
+
+        // this method can be overloaded
+        foreach ($args as $data) {
+            if (is_array($data)) {
+                call_user_func_array(array($this, 'add'), $data);
+                continue;
+            }
+
+            // redefine var
+            $data = (string) $data;
+
+            // load data
+            $value = $this->load($data);
+            $key = ($data != $value) ? $data : count($this->data);
+
+            // replace CR linefeeds etc.
+            // @see https://github.com/matthiasmullie/minify/pull/139
+            $value = str_replace(array("\r\n", "\r"), "\n", $value);
+
+            // store data
+            $this->data[$key] = $value;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Add a file to be minified.
+     *
+     * @param string|string[] $data
+     *
+     * @return static
+     * 
+     * @throws IOException
+     */
+    public function addFile($data /* $data = null, ... */)
+    {
+        // bogus "usage" of parameter $data: scrutinizer warns this variable is
+        // not used (we're using func_get_args instead to support overloading),
+        // but it still needs to be defined because it makes no sense to have
+        // this function without argument :)
+        $args = array($data) + func_get_args();
+
+        // this method can be overloaded
+        foreach ($args as $path) {
+            if (is_array($path)) {
+                call_user_func_array(array($this, 'addFile'), $path);
+                continue;
+            }
+
+            // redefine var
+            $path = (string) $path;
+
+            // check if we can read the file
+            if (!$this->canImportFile($path)) {
+                throw new IOException('The file "'.$path.'" could not be opened for reading. Check if PHP has enough permissions.');
+            }
+
+            $this->add($path);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Minify the data & (optionally) saves it to a file.
+     *
+     * @param string[optional] $path Path to write the data to
+     *
+     * @return string The minified data
+     */
+    public function minify($path = null)
+    {
+        $content = $this->execute($path);
+
+        // save to path
+        if ($path !== null) {
+            $this->save($content, $path);
+        }
+
+        return $content;
+    }
+
+    /**
+     * Minify & gzip the data & (optionally) saves it to a file.
+     *
+     * @param string[optional] $path  Path to write the data to
+     * @param int[optional]    $level Compression level, from 0 to 9
+     *
+     * @return string The minified & gzipped data
+     */
+    public function gzip($path = null, $level = 9)
+    {
+        $content = $this->execute($path);
+        $content = gzencode($content, $level, FORCE_GZIP);
+
+        // save to path
+        if ($path !== null) {
+            $this->save($content, $path);
+        }
+
+        return $content;
+    }
+
+    /**
+     * Minify the data & write it to a CacheItemInterface object.
+     *
+     * @param CacheItemInterface $item Cache item to write the data to
+     *
+     * @return CacheItemInterface Cache item with the minifier data
+     */
+    public function cache(CacheItemInterface $item)
+    {
+        $content = $this->execute();
+        $item->set($content);
+
+        return $item;
+    }
+
+    /**
+     * Minify the data.
+     *
+     * @param string[optional] $path Path to write the data to
+     *
+     * @return string The minified data
+     */
+    abstract public function execute($path = null);
+
+    /**
+     * Load data.
+     *
+     * @param string $data Either a path to a file or the content itself
+     *
+     * @return string
+     */
+    protected function load($data)
+    {
+        // check if the data is a file
+        if ($this->canImportFile($data)) {
+            $data = file_get_contents($data);
+
+            // strip BOM, if any
+            if (substr($data, 0, 3) == "\xef\xbb\xbf") {
+                $data = substr($data, 3);
+            }
+        }
+
+        return $data;
+    }
+
+    /**
+     * Save to file.
+     *
+     * @param string $content The minified data
+     * @param string $path    The path to save the minified data to
+     *
+     * @throws IOException
+     */
+    protected function save($content, $path)
+    {
+        $handler = $this->openFileForWriting($path);
+
+        $this->writeToFile($handler, $content);
+
+        @fclose($handler);
+    }
+
+    /**
+     * Register a pattern to execute against the source content.
+     *
+     * @param string          $pattern     PCRE pattern
+     * @param string|callable $replacement Replacement value for matched pattern
+     */
+    protected function registerPattern($pattern, $replacement = '')
+    {
+        // study the pattern, we'll execute it more than once
+        $pattern .= 'S';
+
+        $this->patterns[] = array($pattern, $replacement);
+    }
+
+    /**
+     * We can't "just" run some regular expressions against JavaScript: it's a
+     * complex language. E.g. having an occurrence of // xyz would be a comment,
+     * unless it's used within a string. Of you could have something that looks
+     * like a 'string', but inside a comment.
+     * The only way to accurately replace these pieces is to traverse the JS one
+     * character at a time and try to find whatever starts first.
+     *
+     * @param string $content The content to replace patterns in
+     *
+     * @return string The (manipulated) content
+     */
+    protected function replace($content)
+    {
+        $processed = '';
+        $positions = array_fill(0, count($this->patterns), -1);
+        $matches = array();
+
+        while ($content) {
+            // find first match for all patterns
+            foreach ($this->patterns as $i => $pattern) {
+                list($pattern, $replacement) = $pattern;
+
+                // we can safely ignore patterns for positions we've unset earlier,
+                // because we know these won't show up anymore
+                if (array_key_exists($i, $positions) == false) {
+                    continue;
+                }
+
+                // no need to re-run matches that are still in the part of the
+                // content that hasn't been processed
+                if ($positions[$i] >= 0) {
+                    continue;
+                }
+
+                $match = null;
+                if (preg_match($pattern, $content, $match, PREG_OFFSET_CAPTURE)) {
+                    $matches[$i] = $match;
+
+                    // we'll store the match position as well; that way, we
+                    // don't have to redo all preg_matches after changing only
+                    // the first (we'll still know where those others are)
+                    $positions[$i] = $match[0][1];
+                } else {
+                    // if the pattern couldn't be matched, there's no point in
+                    // executing it again in later runs on this same content;
+                    // ignore this one until we reach end of content
+                    unset($matches[$i], $positions[$i]);
+                }
+            }
+
+            // no more matches to find: everything's been processed, break out
+            if (!$matches) {
+                $processed .= $content;
+                break;
+            }
+
+            // see which of the patterns actually found the first thing (we'll
+            // only want to execute that one, since we're unsure if what the
+            // other found was not inside what the first found)
+            $discardLength = min($positions);
+            $firstPattern = array_search($discardLength, $positions);
+            $match = $matches[$firstPattern][0][0];
+
+            // execute the pattern that matches earliest in the content string
+            list($pattern, $replacement) = $this->patterns[$firstPattern];
+            $replacement = $this->replacePattern($pattern, $replacement, $content);
+
+            // figure out which part of the string was unmatched; that's the
+            // part we'll execute the patterns on again next
+            $content = (string) substr($content, $discardLength);
+            $unmatched = (string) substr($content, strpos($content, $match) + strlen($match));
+
+            // move the replaced part to $processed and prepare $content to
+            // again match batch of patterns against
+            $processed .= substr($replacement, 0, strlen($replacement) - strlen($unmatched));
+            $content = $unmatched;
+
+            // first match has been replaced & that content is to be left alone,
+            // the next matches will start after this replacement, so we should
+            // fix their offsets
+            foreach ($positions as $i => $position) {
+                $positions[$i] -= $discardLength + strlen($match);
+            }
+        }
+
+        return $processed;
+    }
+
+    /**
+     * This is where a pattern is matched against $content and the matches
+     * are replaced by their respective value.
+     * This function will be called plenty of times, where $content will always
+     * move up 1 character.
+     *
+     * @param string          $pattern     Pattern to match
+     * @param string|callable $replacement Replacement value
+     * @param string          $content     Content to match pattern against
+     *
+     * @return string
+     */
+    protected function replacePattern($pattern, $replacement, $content)
+    {
+        if (is_callable($replacement)) {
+            return preg_replace_callback($pattern, $replacement, $content, 1, $count);
+        } else {
+            return preg_replace($pattern, $replacement, $content, 1, $count);
+        }
+    }
+
+    /**
+     * Strings are a pattern we need to match, in order to ignore potential
+     * code-like content inside them, but we just want all of the string
+     * content to remain untouched.
+     *
+     * This method will replace all string content with simple STRING#
+     * placeholder text, so we've rid all strings from characters that may be
+     * misinterpreted. Original string content will be saved in $this->extracted
+     * and after doing all other minifying, we can restore the original content
+     * via restoreStrings().
+     *
+     * @param string[optional] $chars
+     * @param string[optional] $placeholderPrefix
+     */
+    protected function extractStrings($chars = '\'"', $placeholderPrefix = '')
+    {
+        // PHP only supports $this inside anonymous functions since 5.4
+        $minifier = $this;
+        $callback = function ($match) use ($minifier, $placeholderPrefix) {
+            // check the second index here, because the first always contains a quote
+            if ($match[2] === '') {
+                /*
+                 * Empty strings need no placeholder; they can't be confused for
+                 * anything else anyway.
+                 * But we still needed to match them, for the extraction routine
+                 * to skip over this particular string.
+                 */
+                return $match[0];
+            }
+
+            $count = count($minifier->extracted);
+            $placeholder = $match[1].$placeholderPrefix.$count.$match[1];
+            $minifier->extracted[$placeholder] = $match[1].$match[2].$match[1];
+
+            return $placeholder;
+        };
+
+        /*
+         * The \\ messiness explained:
+         * * Don't count ' or " as end-of-string if it's escaped (has backslash
+         * in front of it)
+         * * Unless... that backslash itself is escaped (another leading slash),
+         * in which case it's no longer escaping the ' or "
+         * * So there can be either no backslash, or an even number
+         * * multiply all of that times 4, to account for the escaping that has
+         * to be done to pass the backslash into the PHP string without it being
+         * considered as escape-char (times 2) and to get it in the regex,
+         * escaped (times 2)
+         */
+        $this->registerPattern('/(['.$chars.'])(.*?(?<!\\\\)(\\\\\\\\)*+)\\1/s', $callback);
+    }
+
+    /**
+     * This method will restore all extracted data (strings, regexes) that were
+     * replaced with placeholder text in extract*(). The original content was
+     * saved in $this->extracted.
+     *
+     * @param string $content
+     *
+     * @return string
+     */
+    protected function restoreExtractedData($content)
+    {
+        if (!$this->extracted) {
+            // nothing was extracted, nothing to restore
+            return $content;
+        }
+
+        $content = strtr($content, $this->extracted);
+
+        $this->extracted = array();
+
+        return $content;
+    }
+
+    /**
+     * Check if the path is a regular file and can be read.
+     *
+     * @param string $path
+     *
+     * @return bool
+     */
+    protected function canImportFile($path)
+    {
+        $parsed = parse_url($path);
+        if (
+            // file is elsewhere
+            isset($parsed['host']) ||
+            // file responds to queries (may change, or need to bypass cache)
+            isset($parsed['query'])
+        ) {
+            return false;
+        }
+
+        return strlen($path) < PHP_MAXPATHLEN && @is_file($path) && is_readable($path);
+    }
+
+    /**
+     * Attempts to open file specified by $path for writing.
+     *
+     * @param string $path The path to the file
+     *
+     * @return resource Specifier for the target file
+     *
+     * @throws IOException
+     */
+    protected function openFileForWriting($path)
+    {
+        if (($handler = @fopen($path, 'w')) === false) {
+            throw new IOException('The file "'.$path.'" could not be opened for writing. Check if PHP has enough permissions.');
+        }
+
+        return $handler;
+    }
+
+    /**
+     * Attempts to write $content to the file specified by $handler. $path is used for printing exceptions.
+     *
+     * @param resource $handler The resource to write to
+     * @param string   $content The content to write
+     * @param string   $path    The path to the file (for exception printing only)
+     *
+     * @throws IOException
+     */
+    protected function writeToFile($handler, $content, $path = '')
+    {
+        if (($result = @fwrite($handler, $content)) === false || ($result < strlen($content))) {
+            throw new IOException('The file "'.$path.'" could not be written to. Check your disk space and file permissions.');
+        }
+    }
+}