Link::toString() - Code Metrics - thorsten/phpMyFAQ - Measure and Improve Code Quality continuously with Scrutinizer

Link::toString() F
last analyzed 2019-02-24 13:29 UTC

↳ Parent: Link

Complexity

Conditions	35
Paths	221

Size

Total Lines

160

Duplication

Lines	14
Ratio	8.75 %

Importance

Changes

Metric	Value
cc	35
nc	221
nop	1
dl	14
loc	160
rs	2.4566
c	0
b	0
f	0

How to fix Long Method Complexity

<?php

namespace phpMyFAQ;

/**
 * Link management
 *
 * This class wrap the needs for managing an HTML anchor
 * taking into account also the HTML anchor creation
 * with specific handling for mod_rewrite PMF native support
 *
 * This Source Code Form is subject to the terms of the Mozilla Public License,
 * v. 2.0. If a copy of the MPL was not distributed with this file, You can
 * obtain one at http://mozilla.org/MPL/2.0/.
 *
 * @package phpMyFAQ
 * @author Matteo Scaramuccia <[email protected]>
 * @author Thorsten Rinne <[email protected]>
 * @copyright 2005-2019 phpMyFAQ Team
 * @license http://www.mozilla.org/MPL/2.0/ Mozilla Public License Version 2.0
 * @link https://www.phpmyfaq.de
 * @since 2005-11-02
 */

if (!defined('IS_VALID_PHPMYFAQ')) {
    exit();
}

/**
 * Link Class.
 *
 * @package phpMyFAQ
 * @author Matteo Scaramuccia <[email protected]>
 * @author Thorsten Rinne <[email protected]>
 * @copyright 2005-2019 phpMyFAQ Team
 * @license http://www.mozilla.org/MPL/2.0/ Mozilla Public License Version 2.0
 * @link https://www.phpmyfaq.de
 * @since 2005-11-02
 */
class Link
{
    /**
     * class constants.
     */
    const LINK_AMPERSAND = '&amp;';
    const LINK_CATEGORY = 'category/';
    const LINK_CONTENT = 'content/';
    const LINK_EQUAL = '=';
    const LINK_FRAGMENT_SEPARATOR = '#';
    const LINK_HTML_MINUS = '-';
    const LINK_HTML_UNDERSCORE = '_';
    const LINK_HTML_SLASH = '/';
    const LINK_HTML_TARGET_BLANK = '_blank';
    const LINK_HTML_TARGET_PARENT = '_parent';
    const LINK_HTML_TARGET_SELF = '_self';
    const LINK_HTML_TARGET_TOP = '_top';
    const LINK_NEWS = 'news/';
    const LINK_SITEMAP = 'sitemap/';
    const LINK_SLASH = '/';
    const LINK_SEARCHPART_SEPARATOR = '?';
    const LINK_TAGS = 'tags/';

    const LINK_INDEX_ADMIN = '/admin/index.php';
    const LINK_INDEX_HOME = '/index.php';

    const LINK_GET_ACTION = 'action';
    const LINK_GET_ARTLANG = 'artlang';
    const LINK_GET_CATEGORY = 'cat';
    const LINK_GET_HIGHLIGHT = 'highlight';
    const LINK_GET_ID = 'id';
    const LINK_GET_LANG = 'lang';
    const LINK_GET_LETTER = 'letter';
    const LINK_GET_NEWS_ID = 'newsid';
    const LINK_GET_NEWS_LANG = 'newslang';
    const LINK_GET_PAGE = 'seite';
    const LINK_GET_SIDS = 'sid';
    const LINK_GET_TAGGING_ID = 'tagging_id';
    const LINK_GET_LANGS = 'langs';

    const LINK_GET_ACTION_ADD = 'add';
    const LINK_GET_ACTION_FAQ = 'faq';
    const LINK_GET_ACTION_ASK = 'ask';
    const LINK_GET_ACTION_CONTACT = 'contact';
    const LINK_GET_ACTION_GLOSSARY = 'glossary';
    const LINK_GET_ACTION_HELP = 'help';
    const LINK_GET_ACTION_LOGIN = 'login';
    const LINK_GET_ACTION_NEWS = 'news';
    const LINK_GET_ACTION_OPEN = 'open';
    const LINK_GET_ACTION_PASSWORD = 'password';
    const LINK_GET_ACTION_REGISTER = 'register';
    const LINK_GET_ACTION_SEARCH = 'search';
    const LINK_GET_ACTION_SITEMAP = 'sitemap';
    const LINK_GET_ACTION_SHOW = 'show';

    const LINK_HTML_CATEGORY = 'category';
    const LINK_HTML_EXTENSION = '.html';
    const LINK_HTML_SITEMAP = 'sitemap';

    const LINK_HTML_ADDCONTENT = 'addcontent.html';
    const LINK_HTML_ASK = 'ask.html';
    const LINK_HTML_CONTACT = 'contact.html';
    const LINK_HTML_GLOSSARY = 'glossary.html';
    const LINK_HTML_HELP = 'help.html';
    const LINK_HTML_LOGIN = 'login.html';
    const LINK_HTML_OPEN = 'open.html';
    const LINK_HTML_PASSWORD = 'password.html';
    const LINK_HTML_REGISTER = 'register.html';
    const LINK_HTML_SEARCH = 'search.html';
    const LINK_HTML_SHOWCAT = 'showcat.html';

    /**
     * URL.
     *
     * @var string
     */
    public $url = '';

    /**
     * CSS class.
     *
     * @var string
     */
    public $class = '';

    /**
     * Linktext.
     *
     * @var string
     */
    public $text = '';

    /**
     * Tooltip.
     *
     * @var string
     */
    public $tooltip = '';

    /**
     * Target.
     *
     * @var string
     */
    public $target = '';

    /**
     * Name selector.
     *
     * @var string
     */
    public $name = '';

    /**
     * property specific to the SEO/SEF URLs.
     *
     * @var string
     */
    public $itemTitle = '';

    /**
     * Item property for HTML5 microdata.
     *
     * @var string
     */
    protected $itemprop = '';

    /**
     * rel property.
     *
     * @var string
     */
    protected $rel = '';

    /**
     * id selector.
     *
     * @var string
     */
    public $id = '';

    /**
     * @var Configuration
     */
    private $config = null;

    /**
     * Constructor.
     *
     * @param string            $url    URL
     * @param Configuration $config
     */
    public function __construct($url, Configuration $config)
    {
        $this->url = $url;
        $this->config = $config;
    }

    /**
     * Checks if webserver is an IIS Server.
     *
     * @return bool
     */
    public static function isIISServer()
    {
        return (isset($_SERVER['ALL_HTTP']) || isset($_SERVER['COMPUTERNAME']) || isset($_SERVER['APP_POOL_ID']));
    }

    /**
     * Checks if the the current URL is the main index.php file.
     *
     * @return bool
     */
    protected function isHomeIndex()
    {
        if (!$this->isSystemLink()) {
            return false;
        }

        return !(false === strpos($this->url, self::LINK_INDEX_HOME));
    }

    /**
     * Checks if URL is an internal reference.
     *
     * @return bool
     */
    protected function isInternalReference()
    {
        if ($this->isRelativeSystemLink()) {
            return true;
        }
        if (false === strpos($this->url, '#')) {
            return false;
        }

        return (strpos($this->url, '#') == 0);
    }

    /**
     * Checks if URL is a relative system link.
     *
     * @return bool
     */
    protected function isRelativeSystemLink()
    {
        $slashIdx = strpos($this->url, self::LINK_SLASH);
        if (false === $slashIdx) {
            return false;
        }

        return ($slashIdx == 0);
    }

    /**
     * Checks if URL is a system link.
     *
     * @return bool
     */
    protected function isSystemLink()
    {
        // a. Is the url relative, starting with '/'?
        // b. Is the url related to the current running PMF system?
        if ($this->isRelativeSystemLink()) {
            return true;
        }
        // $_SERVER['HTTP_HOST'] is the name of the website or virtual host name
        return !(false === strpos($this->url, $_SERVER['HTTP_HOST']));
    }

    /**
     * @param string $itemprop Item property
     */
    public function setItemProperty($itemprop)
    {
        $this->itemprop = $itemprop;
    }

    /**
     * @param string $rel rel property
     */
    public function setRelation($rel)
    {
        $this->rel = $rel;
    }

    /**
     * Checks if URL contains a scheme.
     *
     * @return bool
     */
    protected function hasScheme()
    {
        $parsed = parse_url($this->url);

        return (!empty($parsed['scheme']));
    }

    /**
     * Returns a search engine optimized title.
     *
     * @param string $title
     *
     * @return string
     */
    public function getSEOItemTitle($title = '')
    {
        if ('' === $title) {
            $title = $this->itemTitle;
        }

        $itemTitle = trim($title);
        // Lower the case (aesthetic)
        $itemTitle = Strings::strtolower($itemTitle);
        // Use '_' for some other characters for:
        // 1. avoiding regexp match break;
        // 2. improving the reading.
        $itemTitle = str_replace(array('-', "'", '/', '&#39'), '_', $itemTitle);
        // 1. Remove any CR LF sequence
        // 2. Use a '-' for the words separation
        $itemTitle = Strings::preg_replace('/\s/m', '-', $itemTitle);
        // Hack: remove some chars for having a better readable title
        $itemTitle = str_replace(
            array('+', ',', ';', ':', '.', '?', '!', '"', '(', ')', '[', ']', '{', '}', '<', '>', '%'),
            '',
            $itemTitle
        );
        // Hack: move some chars to "similar" but plain ASCII chars
        $itemTitle = str_replace(
            array(
                'à', 'è', 'é', 'ì', 'ò', 'ù', 'ä', 'ö', 'ü', 'ß', 'Ä', 'Ö', 'Ü',
                'č', 'ę', 'ė', 'į', 'š', 'ų', 'ū', 'ž',
                ),
            array(
                'a', 'e', 'e', 'i', 'o', 'u', 'ae', 'oe', 'ue', 'ss', 'Ae', 'Oe', 'Ue',
                'c', 'e', 'e', 'i', 's', 'u', 'u', 'z',
            ),
            $itemTitle
        );
        // Clean up
        $itemTitle = Strings::preg_replace('/-[\-]+/m', '-', $itemTitle);

        return $itemTitle;
    }

    /**
     * Returns the HTTP GET parameters.
     * @return string
     */
    protected function getHttpGetParameters(): array
    {
        $query = $this->getQuery();
        $parameters = [];

        if (!empty($query)) {
            // Check fragment
            if (isset($query['fragment'])) {
                $parameters[self::LINK_FRAGMENT_SEPARATOR] = urldecode($query['fragment']);
            }

            // Check if query string contains &amp;
            $query['main'] = str_replace('&amp;', '&', $query['main']);

            $params = explode('&', $query['main']);
            foreach ($params as $param) {
                if (!empty($param)) {
                    $couple = explode(self::LINK_EQUAL, $param);
                    list($key, $val) = $couple;
                    $parameters[$key] = urldecode($val);
                }
            }
        }

        return $parameters;
    }

    /**
     * Returns the query of an URL.
     * @return array
     */
    protected function getQuery(): array
    {
        $query = [];

        if (!empty($this->url)) {
            $parsed = parse_url($this->url);

            if (isset($parsed['query'])) {
                $query['main'] = filter_var($parsed['query'], FILTER_SANITIZE_STRIPPED);
            }
            if (isset($parsed['fragment'])) {
                $query['fragment'] = filter_var($parsed['fragment'], FILTER_SANITIZE_STRIPPED);
            }
        }

        return $query;
    }

    /**
     * Returns the default scheme.
     * @return string
     */
    protected function getDefaultScheme(): string
    {
        $scheme = 'http://';
        if ($this->isSystemLink()) {
            $scheme = $this->getSystemScheme();
        }

        return $scheme;
    }

    /**
     * Returns the system scheme, http or https.
     * @return string
     */
    public function getSystemScheme(): string
    {
        if ($this->config->get('security.useSslOnly')) {
            return 'https://';
        }

        if (!self::isIISServer()) {
            // Apache, nginx, lighttpd
            if (isset($_SERVER['HTTPS']) && 'on' === strtolower($_SERVER['HTTPS'])) {
                return 'https://';
            } else {
                return 'http://';
            }
        } else {
            // IIS Server
            if ('on' === strtolower($_SERVER['HTTPS'])) {
                return 'https://';
            } else {
                return 'http://';
            }
        }
    }

    /**
     * Returns the relative URI.
     * @param string $path
     * @return string
     */
    public static function getSystemRelativeUri(string $path = null): string
    {
        if (isset($path)) {
            return str_replace($path, '', $_SERVER['SCRIPT_NAME']);
        }

        return str_replace('/src/Link.php', '', $_SERVER['SCRIPT_NAME']);
    }

    /**
     * Returns the system URI.
     *
     * $_SERVER['HTTP_HOST'] is the name of the website or virtual host name (HTTP/1.1)
     * Precisely, it contains what the user has written in the Host request-header, see below.
     * RFC 2616: The Host request-header field specifies the Internet host and port number of the resource
     *           being requested, as obtained from the original URI given by the user or referring resource
     *
     * @param string $path
     * @return string
     */
    public function getSystemUri($path = null): string
    {
        // Remove any ref to standard ports 80 and 443.
        $pattern[0] = '/:80$/'; // HTTP: port 80
        $pattern[1] = '/:443$/'; // HTTPS: port 443
        $sysUri = $this->getSystemScheme().preg_replace($pattern, '', $_SERVER['HTTP_HOST']);

        return $sysUri.self::getSystemRelativeUri($path);
    }

    /**
     * Builds a HTML anchor.
     * @return string
     */
    public function toHtmlAnchor():string
    {
        // Sanitize the provided url
        $url = $this->toString();
        // Prepare HTML anchor element
        $htmlAnchor = '<a';
        if (!empty($this->class)) {
            $htmlAnchor .= sprintf(' class="%s"', $this->class);
        }
        if (!empty($this->id)) {
            $htmlAnchor .= ' id="'.$this->id.'"';
        }
        if (!empty($this->tooltip)) {
            $htmlAnchor .= sprintf(' title="%s"', addslashes($this->tooltip));
        }
        if (!empty($this->name)) {
            $htmlAnchor .= sprintf(' name="%s"', $this->name);
        } else {
            if (!empty($this->url)) {
                $htmlAnchor .= sprintf(' href="%s"', $url);
            }
            if (!empty($this->target)) {
                $htmlAnchor .= sprintf(' target="%s"', $this->target);
            }
        }
        if (!empty($this->itemprop)) {
            $htmlAnchor .= sprintf(' itemprop="%s"', $this->itemprop);
        }
        if (!empty($this->rel)) {
            $htmlAnchor .= sprintf(' rel="%s"', $this->rel);
        }
        $htmlAnchor .= '>';
        if (('0' == $this->text) || (!empty($this->text))) {
            $htmlAnchor .= $this->text;
        } else {
            if (!empty($this->name)) {
                $htmlAnchor .= $this->name;
            } else {
                $htmlAnchor .= $url;
            }
        }
        $htmlAnchor .= '</a>';

        return $htmlAnchor;
    }

    /**
     * Appends the session id.
     * @param string $url  URL
     * @param int    $sids Session Id
     * @return string
     */
    protected function appendSids(string $url, int $sids): string
    {
        $separator = (false === strpos($url, self::LINK_SEARCHPART_SEPARATOR))
                     ?
                     self::LINK_SEARCHPART_SEPARATOR
                     :
                     self::LINK_AMPERSAND;

        return $url.$separator.self::LINK_GET_SIDS.self::LINK_EQUAL.$sids;
    }

    /**
     * Rewrites a URL string. Checks mod_rewrite support and 'rewrite'
     * the passed (system) uri according to the rewrite rules written
     * in .htaccess
     * @param bool $removeSessionFromUrl Remove session from URL
     * @return string
     */
    public function toString(bool $removeSessionFromUrl = false): string
    {
        $url = $this->toUri();
        if ($this->config->get('main.enableRewriteRules')) {
            if ($this->isHomeIndex()) {
                $getParams = $this->getHttpGetParameters();
                if (isset($getParams[self::LINK_GET_ACTION])) {

                    // Get the part of the url 'till the '/' just before the pattern
                    $url = substr($url, 0, strpos($url, self::LINK_INDEX_HOME) + 1);

                    // Build the Url according to .htaccess rules
                    switch ($getParams[self::LINK_GET_ACTION]) {

                        case self::LINK_GET_ACTION_ADD:
                            $url .= self::LINK_HTML_ADDCONTENT;
                            break;

                        case self::LINK_GET_ACTION_FAQ:
                            $url .= self::LINK_CONTENT.
                                    $getParams[self::LINK_GET_CATEGORY].
                                    self::LINK_HTML_SLASH.
                                    $getParams[self::LINK_GET_ID].
                                    self::LINK_HTML_SLASH.
                                    $getParams[self::LINK_GET_ARTLANG].
                                    self::LINK_SLASH.
                                    $this->getSEOItemTitle().
                                    self::LINK_HTML_EXTENSION;
                            if (isset($getParams[self::LINK_GET_HIGHLIGHT])) {
                                $url .= self::LINK_SEARCHPART_SEPARATOR.
                                        self::LINK_GET_HIGHLIGHT.'='.
                                        $getParams[self::LINK_GET_HIGHLIGHT];
                            }
                            if (isset($getParams[self::LINK_FRAGMENT_SEPARATOR])) {
                                $url .= self::LINK_FRAGMENT_SEPARATOR.
                                        $getParams[self::LINK_FRAGMENT_SEPARATOR];
                            }
                            break;

                        case self::LINK_GET_ACTION_ASK:
                            $url .= self::LINK_HTML_ASK;
                            break;

                        case self::LINK_GET_ACTION_CONTACT:
                            $url .= self::LINK_HTML_CONTACT;
                            break;

                        case self::LINK_GET_ACTION_GLOSSARY:
                            $url .= self::LINK_HTML_GLOSSARY;
                            break;

                        case self::LINK_GET_ACTION_HELP:
                            $url .= self::LINK_HTML_HELP;
                            break;

                        case self::LINK_GET_ACTION_OPEN:
                            $url .= self::LINK_HTML_OPEN;
                            break;

                        case self::LINK_GET_ACTION_SEARCH:
                            if (!isset($getParams[self::LINK_GET_ACTION_SEARCH]) &&
                                isset($getParams[self::LINK_GET_TAGGING_ID])) {
                                $url .= self::LINK_TAGS.$getParams[self::LINK_GET_TAGGING_ID];
                                if (isset($getParams[self::LINK_GET_PAGE])) {
                                    $url .= self::LINK_HTML_SLASH.$getParams[self::LINK_GET_PAGE];
                                }
                                $url .= self::LINK_SLASH.
                                        $this->getSEOItemTitle().
                                        self::LINK_HTML_EXTENSION;
                            } elseif (isset($getParams[self::LINK_GET_ACTION_SEARCH])) {
                                $url .= self::LINK_HTML_SEARCH;
                                $url .= self::LINK_SEARCHPART_SEPARATOR.
                                        self::LINK_GET_ACTION_SEARCH.'='.
                                        $getParams[self::LINK_GET_ACTION_SEARCH];
                                if (isset($getParams[self::LINK_GET_PAGE])) {
                                    $url .= self::LINK_AMPERSAND.self::LINK_GET_PAGE.'='.
                                            $getParams[self::LINK_GET_PAGE];
                                }
                            }
                            if (isset($getParams[self::LINK_GET_LANGS])) {
                                $url .= self::LINK_AMPERSAND.
                                        self::LINK_GET_LANGS.'='.
                                        $getParams[self::LINK_GET_LANGS];
                            }
                            break;

                        case self::LINK_GET_ACTION_SITEMAP:
                            if (isset($getParams[self::LINK_GET_LETTER])) {
                                $url .= self::LINK_SITEMAP.
                                        $getParams[self::LINK_GET_LETTER].
                                        self::LINK_HTML_SLASH.
                                        $getParams[self::LINK_GET_LANG].
                                        self::LINK_HTML_EXTENSION;
                            } else {
                                $url .= self::LINK_SITEMAP.'A'.
                                        self::LINK_HTML_SLASH.
                                        $getParams[self::LINK_GET_LANG].
                                        self::LINK_HTML_EXTENSION;
                            }
                            break;

                        case self::LINK_GET_ACTION_SHOW:
                            if (!isset($getParams[self::LINK_GET_CATEGORY]) ||
                                (isset($getParams[self::LINK_GET_CATEGORY]) &&
                                (0 == $getParams[self::LINK_GET_CATEGORY]))) {
                                $url .= self::LINK_HTML_SHOWCAT;
                            } else {
                                $url .= self::LINK_CATEGORY.
                                        $getParams[self::LINK_GET_CATEGORY];
                                if (isset($getParams[self::LINK_GET_PAGE])) {
                                    $url .= self::LINK_HTML_SLASH.
                                            $getParams[self::LINK_GET_PAGE];
                                }
                                $url .= self::LINK_HTML_SLASH.
                                        $this->getSEOItemTitle().
                                        self::LINK_HTML_EXTENSION;
                            }
                            break;

                        case self::LINK_GET_ACTION_NEWS:
                            $url .= self::LINK_NEWS.
                                    $getParams[self::LINK_GET_NEWS_ID].
                                    self::LINK_HTML_SLASH.
                                    $getParams[self::LINK_GET_NEWS_LANG].
                                    self::LINK_SLASH.
                                    $this->getSEOItemTitle().
                                    self::LINK_HTML_EXTENSION;
                            break;
                    }

                    if (isset($getParams[self::LINK_GET_SIDS])) {
                        $url = $this->appendSids($url, $getParams[self::LINK_GET_SIDS]);
                    }

                    if (isset($getParams['fragment'])) {
                        $url .= self::LINK_FRAGMENT_SEPARATOR.$getParams['fragment'];
                    }

                    if ($removeSessionFromUrl) {
                        $url = strtok($url, '?');
                    }
                }
            }
        } else {
            if ($removeSessionFromUrl) {
                $getParams = $this->getHttpGetParameters();
                if (isset($getParams[self::LINK_GET_ACTION])) {
                    $url = substr($url, 0, strpos($url, self::LINK_INDEX_HOME) + 1).'index.php?';
                    foreach ($getParams as $key => $value) {
                        if ($key !== self::LINK_GET_SIDS) {
                            $url .= sprintf('%s=%s&', $key, $value);
                        }
                    }
                    $url = substr($url, 0, -1); // Remove last &
                }
            }
        }

        return $url;
    }

    /**
     * Transforms a URI.
     * @return string
     */
    public function toUri(): string 
    {
        $url = $this->url;
        if (!empty($this->url)) {
            if ((!$this->hasScheme()) && (!$this->isInternalReference())) {
                $url = $this->getDefaultScheme().$this->url;
            }
        }

        return $url;
    }

    /**
     * Returns the current URL.
     * @return string
     */
    public function getCurrentUrl(): string
    {
        return $this->config->getDefaultUrl().Strings::htmlspecialchars(substr($_SERVER['REQUEST_URI'], 1));
    }

    /**
     * Static method to generate simple HTML anchors.
     * @static
     * @param string $url    URL
     * @param string $text   Text
     * @param bool   $active Add CSS class named "active"?
     * @return string
     */
    public static function renderNavigationLink(string $url, string $text, bool $active = false): string
    {
        return printf(
            '<a %s href="%s">%s</a>',
            (true === $active ? 'class="active"' : ''),
            $url,
            $text
        );
    }
}


1		<?php
2
3		namespace phpMyFAQ;
4
5		/**
6		* Link management
7		*
8		* This class wrap the needs for managing an HTML anchor
9		* taking into account also the HTML anchor creation
10		* with specific handling for mod_rewrite PMF native support
11		*
12		* This Source Code Form is subject to the terms of the Mozilla Public License,
13		* v. 2.0. If a copy of the MPL was not distributed with this file, You can
14		* obtain one at http://mozilla.org/MPL/2.0/.
15		*
16		* @package phpMyFAQ
17		* @author Matteo Scaramuccia <[email protected]>
18		* @author Thorsten Rinne <[email protected]>
19		* @copyright 2005-2019 phpMyFAQ Team
20		* @license http://www.mozilla.org/MPL/2.0/ Mozilla Public License Version 2.0
21		* @link https://www.phpmyfaq.de
22		* @since 2005-11-02
23		*/
24
25		if (!defined('IS_VALID_PHPMYFAQ')) {
26		exit();
27		}
28
29		/**
30		* Link Class.
31		*
32		* @package phpMyFAQ
33		* @author Matteo Scaramuccia <[email protected]>
34		* @author Thorsten Rinne <[email protected]>
35		* @copyright 2005-2019 phpMyFAQ Team
36		* @license http://www.mozilla.org/MPL/2.0/ Mozilla Public License Version 2.0
37		* @link https://www.phpmyfaq.de
38		* @since 2005-11-02
39		*/
40		class Link
41		{
42		/**
43		* class constants.
44		*/
45		const LINK_AMPERSAND = '&';
46		const LINK_CATEGORY = 'category/';
47		const LINK_CONTENT = 'content/';
48		const LINK_EQUAL = '=';
49		const LINK_FRAGMENT_SEPARATOR = '#';
50		const LINK_HTML_MINUS = '-';
51		const LINK_HTML_UNDERSCORE = '_';
52		const LINK_HTML_SLASH = '/';
53		const LINK_HTML_TARGET_BLANK = '_blank';
54		const LINK_HTML_TARGET_PARENT = '_parent';
55		const LINK_HTML_TARGET_SELF = '_self';
56		const LINK_HTML_TARGET_TOP = '_top';
57		const LINK_NEWS = 'news/';
58		const LINK_SITEMAP = 'sitemap/';
59		const LINK_SLASH = '/';
60		const LINK_SEARCHPART_SEPARATOR = '?';
61		const LINK_TAGS = 'tags/';
62
63		const LINK_INDEX_ADMIN = '/admin/index.php';
64		const LINK_INDEX_HOME = '/index.php';
65
66		const LINK_GET_ACTION = 'action';
67		const LINK_GET_ARTLANG = 'artlang';
68		const LINK_GET_CATEGORY = 'cat';
69		const LINK_GET_HIGHLIGHT = 'highlight';
70		const LINK_GET_ID = 'id';
71		const LINK_GET_LANG = 'lang';
72		const LINK_GET_LETTER = 'letter';
73		const LINK_GET_NEWS_ID = 'newsid';
74		const LINK_GET_NEWS_LANG = 'newslang';
75		const LINK_GET_PAGE = 'seite';
76		const LINK_GET_SIDS = 'sid';
77		const LINK_GET_TAGGING_ID = 'tagging_id';
78		const LINK_GET_LANGS = 'langs';
79
80		const LINK_GET_ACTION_ADD = 'add';
81		const LINK_GET_ACTION_FAQ = 'faq';
82		const LINK_GET_ACTION_ASK = 'ask';
83		const LINK_GET_ACTION_CONTACT = 'contact';
84		const LINK_GET_ACTION_GLOSSARY = 'glossary';
85		const LINK_GET_ACTION_HELP = 'help';
86		const LINK_GET_ACTION_LOGIN = 'login';
87		const LINK_GET_ACTION_NEWS = 'news';
88		const LINK_GET_ACTION_OPEN = 'open';
89		const LINK_GET_ACTION_PASSWORD = 'password';
90		const LINK_GET_ACTION_REGISTER = 'register';
91		const LINK_GET_ACTION_SEARCH = 'search';
92		const LINK_GET_ACTION_SITEMAP = 'sitemap';
93		const LINK_GET_ACTION_SHOW = 'show';
94
95		const LINK_HTML_CATEGORY = 'category';
96		const LINK_HTML_EXTENSION = '.html';
97		const LINK_HTML_SITEMAP = 'sitemap';
98
99		const LINK_HTML_ADDCONTENT = 'addcontent.html';
100		const LINK_HTML_ASK = 'ask.html';
101		const LINK_HTML_CONTACT = 'contact.html';
102		const LINK_HTML_GLOSSARY = 'glossary.html';
103		const LINK_HTML_HELP = 'help.html';
104		const LINK_HTML_LOGIN = 'login.html';
105		const LINK_HTML_OPEN = 'open.html';
106		const LINK_HTML_PASSWORD = 'password.html';
107		const LINK_HTML_REGISTER = 'register.html';
108		const LINK_HTML_SEARCH = 'search.html';
109		const LINK_HTML_SHOWCAT = 'showcat.html';
110
111		/**
112		* URL.
113		*
114		* @var string
115		*/
116		public $url = '';
117
118		/**
119		* CSS class.
120		*
121		* @var string
122		*/
123		public $class = '';
124
125		/**
126		* Linktext.
127		*
128		* @var string
129		*/
130		public $text = '';
131
132		/**
133		* Tooltip.
134		*
135		* @var string
136		*/
137		public $tooltip = '';
138
139		/**
140		* Target.
141		*
142		* @var string
143		*/
144		public $target = '';
145
146		/**
147		* Name selector.
148		*
149		* @var string
150		*/
151		public $name = '';
152
153		/**
154		* property specific to the SEO/SEF URLs.
155		*
156		* @var string
157		*/
158		public $itemTitle = '';
159
160		/**
161		* Item property for HTML5 microdata.
162		*
163		* @var string
164		*/
165		protected $itemprop = '';
166
167		/**
168		* rel property.
169		*
170		* @var string
171		*/
172		protected $rel = '';
173
174		/**
175		* id selector.
176		*
177		* @var string
178		*/
179		public $id = '';
180
181		/**
182		* @var Configuration
183		*/
184		private $config = null;
185
186		/**
187		* Constructor.
188		*
189		* @param string $url URL
190		* @param Configuration $config
191		*/
192		public function __construct($url, Configuration $config)
193		{
194		$this->url = $url;
195		$this->config = $config;
196		}
197
198		/**
199		* Checks if webserver is an IIS Server.
200		*
201		* @return bool
202		*/
203		public static function isIISServer()
204		{
205		return (isset($_SERVER['ALL_HTTP']) \|\| isset($_SERVER['COMPUTERNAME']) \|\| isset($_SERVER['APP_POOL_ID']));
206		}
207
208		/**
209		* Checks if the the current URL is the main index.php file.
210		*
211		* @return bool
212		*/
213		protected function isHomeIndex()
214		{
215		if (!$this->isSystemLink()) {
216		return false;
217		}
218
219		return !(false === strpos($this->url, self::LINK_INDEX_HOME));
220		}
221
222		/**
223		* Checks if URL is an internal reference.
224		*
225		* @return bool
226		*/
227		protected function isInternalReference()
228		{
229		if ($this->isRelativeSystemLink()) {
230		return true;
231		}
232		if (false === strpos($this->url, '#')) {
233		return false;
234		}
235
236		return (strpos($this->url, '#') == 0);
237		}
238
239		/**
240		* Checks if URL is a relative system link.
241		*
242		* @return bool
243		*/
244		protected function isRelativeSystemLink()
245		{
246		$slashIdx = strpos($this->url, self::LINK_SLASH);
247		if (false === $slashIdx) {
248		return false;
249		}
250
251		return ($slashIdx == 0);
252		}
253
254		/**
255		* Checks if URL is a system link.
256		*
257		* @return bool
258		*/
259		protected function isSystemLink()
260		{
261		// a. Is the url relative, starting with '/'?
262		// b. Is the url related to the current running PMF system?
263		if ($this->isRelativeSystemLink()) {
264		return true;
265		}
266		// $_SERVER['HTTP_HOST'] is the name of the website or virtual host name
267		return !(false === strpos($this->url, $_SERVER['HTTP_HOST']));
268		}
269
270		/**
271		* @param string $itemprop Item property
272		*/
273		public function setItemProperty($itemprop)
274		{
275		$this->itemprop = $itemprop;
276		}
277
278		/**
279		* @param string $rel rel property
280		*/
281		public function setRelation($rel)
282		{
283		$this->rel = $rel;
284		}
285
286		/**
287		* Checks if URL contains a scheme.
288		*
289		* @return bool
290		*/
291		protected function hasScheme()
292		{
293		$parsed = parse_url($this->url);
294
295		return (!empty($parsed['scheme']));
296		}
297
298		/**
299		* Returns a search engine optimized title.
300		*
301		* @param string $title
302		*
303		* @return string
304		*/
305		public function getSEOItemTitle($title = '')
306		{
307		if ('' === $title) {
308		$title = $this->itemTitle;
309		}
310
311		$itemTitle = trim($title);
312		// Lower the case (aesthetic)
313		$itemTitle = Strings::strtolower($itemTitle);
314		// Use '_' for some other characters for:
315		// 1. avoiding regexp match break;
316		// 2. improving the reading.
317		$itemTitle = str_replace(array('-', "'", '/', '&#39'), '_', $itemTitle);
318		// 1. Remove any CR LF sequence
319		// 2. Use a '-' for the words separation
320		$itemTitle = Strings::preg_replace('/\s/m', '-', $itemTitle);
321		// Hack: remove some chars for having a better readable title
322		$itemTitle = str_replace(
323		array('+', ',', ';', ':', '.', '?', '!', '"', '(', ')', '[', ']', '{', '}', '<', '>', '%'),
324		'',
325		$itemTitle
326		);
327		// Hack: move some chars to "similar" but plain ASCII chars
328		$itemTitle = str_replace(
329		array(
330		'à', 'è', 'é', 'ì', 'ò', 'ù', 'ä', 'ö', 'ü', 'ß', 'Ä', 'Ö', 'Ü',
331		'č', 'ę', 'ė', 'į', 'š', 'ų', 'ū', 'ž',
332		),
333		array(
334		'a', 'e', 'e', 'i', 'o', 'u', 'ae', 'oe', 'ue', 'ss', 'Ae', 'Oe', 'Ue',
335		'c', 'e', 'e', 'i', 's', 'u', 'u', 'z',
336		),
337		$itemTitle
338		);
339		// Clean up
340		$itemTitle = Strings::preg_replace('/-[\-]+/m', '-', $itemTitle);
341
342		return $itemTitle;
343		}
344
345		/**
346		* Returns the HTTP GET parameters.
347		* @return string
348		*/
349		protected function getHttpGetParameters(): array
350		{
351		$query = $this->getQuery();
352		$parameters = [];
353
354		if (!empty($query)) {
355		// Check fragment
356		if (isset($query['fragment'])) {
357		$parameters[self::LINK_FRAGMENT_SEPARATOR] = urldecode($query['fragment']);
358		}
359
360		// Check if query string contains &
361		$query['main'] = str_replace('&', '&', $query['main']);
362
363		$params = explode('&', $query['main']);
364		foreach ($params as $param) {
365		if (!empty($param)) {
366		$couple = explode(self::LINK_EQUAL, $param);
367		list($key, $val) = $couple;
368		$parameters[$key] = urldecode($val);
369		}
370		}
371		}
372
373		return $parameters;
374		}
375
376		/**
377		* Returns the query of an URL.
378		* @return array
379		*/
380		protected function getQuery(): array
381		{
382		$query = [];
383
384		if (!empty($this->url)) {
385		$parsed = parse_url($this->url);
386
387	View Code Duplication	if (isset($parsed['query'])) {
388		$query['main'] = filter_var($parsed['query'], FILTER_SANITIZE_STRIPPED);
389		}
390	View Code Duplication	if (isset($parsed['fragment'])) {
391		$query['fragment'] = filter_var($parsed['fragment'], FILTER_SANITIZE_STRIPPED);
392		}
393		}
394
395		return $query;
396		}
397
398		/**
399		* Returns the default scheme.
400		* @return string
401		*/
402		protected function getDefaultScheme(): string
403		{
404		$scheme = 'http://';
405		if ($this->isSystemLink()) {
406		$scheme = $this->getSystemScheme();
407		}
408
409		return $scheme;
410		}
411
412		/**
413		* Returns the system scheme, http or https.
414		* @return string
415		*/
416		public function getSystemScheme(): string
417		{
418		if ($this->config->get('security.useSslOnly')) {
419		return 'https://';
420		}
421
422		if (!self::isIISServer()) {
423		// Apache, nginx, lighttpd
424		if (isset($_SERVER['HTTPS']) && 'on' === strtolower($_SERVER['HTTPS'])) {
425		return 'https://';
426		} else {
427		return 'http://';
428		}
429		} else {
430		// IIS Server
431		if ('on' === strtolower($_SERVER['HTTPS'])) {
432		return 'https://';
433		} else {
434		return 'http://';
435		}
436		}
437		}
438
439		/**
440		* Returns the relative URI.
441		* @param string $path
442		* @return string
443		*/
444		public static function getSystemRelativeUri(string $path = null): string
445		{
446		if (isset($path)) {
447		return str_replace($path, '', $_SERVER['SCRIPT_NAME']);
448		}
449
450		return str_replace('/src/Link.php', '', $_SERVER['SCRIPT_NAME']);
451		}
452
453		/**
454		* Returns the system URI.
455		*
456		* $_SERVER['HTTP_HOST'] is the name of the website or virtual host name (HTTP/1.1)
457		* Precisely, it contains what the user has written in the Host request-header, see below.
458		* RFC 2616: The Host request-header field specifies the Internet host and port number of the resource
459		* being requested, as obtained from the original URI given by the user or referring resource
460		*
461		* @param string $path
462		* @return string
463		*/
464		public function getSystemUri($path = null): string
465		{
466		// Remove any ref to standard ports 80 and 443.
467		$pattern[0] = '/:80$/'; // HTTP: port 80
468		$pattern[1] = '/:443$/'; // HTTPS: port 443
469		$sysUri = $this->getSystemScheme().preg_replace($pattern, '', $_SERVER['HTTP_HOST']);
470
471		return $sysUri.self::getSystemRelativeUri($path);
472		}
473
474		/**
475		* Builds a HTML anchor.
476		* @return string
477		*/
478		public function toHtmlAnchor():string
479		{
480		// Sanitize the provided url
481		$url = $this->toString();
482		// Prepare HTML anchor element
483		$htmlAnchor = '<a';
484		if (!empty($this->class)) {
485		$htmlAnchor .= sprintf(' class="%s"', $this->class);
486		}
487		if (!empty($this->id)) {
488		$htmlAnchor .= ' id="'.$this->id.'"';
489		}
490		if (!empty($this->tooltip)) {
491		$htmlAnchor .= sprintf(' title="%s"', addslashes($this->tooltip));
492		}
493		if (!empty($this->name)) {
494		$htmlAnchor .= sprintf(' name="%s"', $this->name);
495		} else {
496		if (!empty($this->url)) {
497		$htmlAnchor .= sprintf(' href="%s"', $url);
498		}
499		if (!empty($this->target)) {
500		$htmlAnchor .= sprintf(' target="%s"', $this->target);
501		}
502		}
503		if (!empty($this->itemprop)) {
504		$htmlAnchor .= sprintf(' itemprop="%s"', $this->itemprop);
505		}
506		if (!empty($this->rel)) {
507		$htmlAnchor .= sprintf(' rel="%s"', $this->rel);
508		}
509		$htmlAnchor .= '>';
510		if (('0' == $this->text) \|\| (!empty($this->text))) {
511		$htmlAnchor .= $this->text;
512		} else {
513		if (!empty($this->name)) {
514		$htmlAnchor .= $this->name;
515		} else {
516		$htmlAnchor .= $url;
517		}
518		}
519		$htmlAnchor .= '</a>';
520
521		return $htmlAnchor;
522		}
523
524		/**
525		* Appends the session id.
526		* @param string $url URL
527		* @param int $sids Session Id
528		* @return string
529		*/
530		protected function appendSids(string $url, int $sids): string
531		{
532		$separator = (false === strpos($url, self::LINK_SEARCHPART_SEPARATOR))
533		?
534		self::LINK_SEARCHPART_SEPARATOR
535		:
536		self::LINK_AMPERSAND;
537
538		return $url.$separator.self::LINK_GET_SIDS.self::LINK_EQUAL.$sids;
539		}
540
541		/**
542		* Rewrites a URL string. Checks mod_rewrite support and 'rewrite'
543		* the passed (system) uri according to the rewrite rules written
544		* in .htaccess
545		* @param bool $removeSessionFromUrl Remove session from URL
546		* @return string
547		*/
548		public function toString(bool $removeSessionFromUrl = false): string
549		{
550		$url = $this->toUri();
551		if ($this->config->get('main.enableRewriteRules')) {
552		if ($this->isHomeIndex()) {
553		$getParams = $this->getHttpGetParameters();
554		if (isset($getParams[self::LINK_GET_ACTION])) {
555
556		// Get the part of the url 'till the '/' just before the pattern
557		$url = substr($url, 0, strpos($url, self::LINK_INDEX_HOME) + 1);
558
559		// Build the Url according to .htaccess rules
560		switch ($getParams[self::LINK_GET_ACTION]) {
561
562		case self::LINK_GET_ACTION_ADD:
563		$url .= self::LINK_HTML_ADDCONTENT;
564		break;
565
566		case self::LINK_GET_ACTION_FAQ:
567		$url .= self::LINK_CONTENT.
568		$getParams[self::LINK_GET_CATEGORY].
569		self::LINK_HTML_SLASH.
570		$getParams[self::LINK_GET_ID].
571		self::LINK_HTML_SLASH.
572		$getParams[self::LINK_GET_ARTLANG].
573		self::LINK_SLASH.
574		$this->getSEOItemTitle().
575		self::LINK_HTML_EXTENSION;
576	View Code Duplication	if (isset($getParams[self::LINK_GET_HIGHLIGHT])) {
577		$url .= self::LINK_SEARCHPART_SEPARATOR.
578		self::LINK_GET_HIGHLIGHT.'='.
579		$getParams[self::LINK_GET_HIGHLIGHT];
580		}
581		if (isset($getParams[self::LINK_FRAGMENT_SEPARATOR])) {
582		$url .= self::LINK_FRAGMENT_SEPARATOR.
583		$getParams[self::LINK_FRAGMENT_SEPARATOR];
584		}
585		break;
586
587		case self::LINK_GET_ACTION_ASK:
588		$url .= self::LINK_HTML_ASK;
589		break;
590
591		case self::LINK_GET_ACTION_CONTACT:
592		$url .= self::LINK_HTML_CONTACT;
593		break;
594
595		case self::LINK_GET_ACTION_GLOSSARY:
596		$url .= self::LINK_HTML_GLOSSARY;
597		break;
598
599		case self::LINK_GET_ACTION_HELP:
600		$url .= self::LINK_HTML_HELP;
601		break;
602
603		case self::LINK_GET_ACTION_OPEN:
604		$url .= self::LINK_HTML_OPEN;
605		break;
606
607		case self::LINK_GET_ACTION_SEARCH:
608		if (!isset($getParams[self::LINK_GET_ACTION_SEARCH]) &&
609		isset($getParams[self::LINK_GET_TAGGING_ID])) {
610		$url .= self::LINK_TAGS.$getParams[self::LINK_GET_TAGGING_ID];
611		if (isset($getParams[self::LINK_GET_PAGE])) {
612		$url .= self::LINK_HTML_SLASH.$getParams[self::LINK_GET_PAGE];
613		}
614		$url .= self::LINK_SLASH.
615		$this->getSEOItemTitle().
616		self::LINK_HTML_EXTENSION;
617		} elseif (isset($getParams[self::LINK_GET_ACTION_SEARCH])) {
618		$url .= self::LINK_HTML_SEARCH;
619		$url .= self::LINK_SEARCHPART_SEPARATOR.
620		self::LINK_GET_ACTION_SEARCH.'='.
621		$getParams[self::LINK_GET_ACTION_SEARCH];
622	View Code Duplication	if (isset($getParams[self::LINK_GET_PAGE])) {
623		$url .= self::LINK_AMPERSAND.self::LINK_GET_PAGE.'='.
624		$getParams[self::LINK_GET_PAGE];
625		}
626		}
627	View Code Duplication	if (isset($getParams[self::LINK_GET_LANGS])) {
628		$url .= self::LINK_AMPERSAND.
629		self::LINK_GET_LANGS.'='.
630		$getParams[self::LINK_GET_LANGS];
631		}
632		break;
633
634		case self::LINK_GET_ACTION_SITEMAP:
635		if (isset($getParams[self::LINK_GET_LETTER])) {
636		$url .= self::LINK_SITEMAP.
637		$getParams[self::LINK_GET_LETTER].
638		self::LINK_HTML_SLASH.
639		$getParams[self::LINK_GET_LANG].
640		self::LINK_HTML_EXTENSION;
641		} else {
642		$url .= self::LINK_SITEMAP.'A'.
643		self::LINK_HTML_SLASH.
644		$getParams[self::LINK_GET_LANG].
645		self::LINK_HTML_EXTENSION;
646		}
647		break;
648
649		case self::LINK_GET_ACTION_SHOW:
650		if (!isset($getParams[self::LINK_GET_CATEGORY]) \|\|
651		(isset($getParams[self::LINK_GET_CATEGORY]) &&
652		(0 == $getParams[self::LINK_GET_CATEGORY]))) {
653		$url .= self::LINK_HTML_SHOWCAT;
654		} else {
655		$url .= self::LINK_CATEGORY.
656		$getParams[self::LINK_GET_CATEGORY];
657		if (isset($getParams[self::LINK_GET_PAGE])) {
658		$url .= self::LINK_HTML_SLASH.
659		$getParams[self::LINK_GET_PAGE];
660		}
661		$url .= self::LINK_HTML_SLASH.
662		$this->getSEOItemTitle().
663		self::LINK_HTML_EXTENSION;
664		}
665		break;
666
667		case self::LINK_GET_ACTION_NEWS:
668		$url .= self::LINK_NEWS.
669		$getParams[self::LINK_GET_NEWS_ID].
670		self::LINK_HTML_SLASH.
671		$getParams[self::LINK_GET_NEWS_LANG].
672		self::LINK_SLASH.
673		$this->getSEOItemTitle().
674		self::LINK_HTML_EXTENSION;
675		break;
676		}
677
678		if (isset($getParams[self::LINK_GET_SIDS])) {
679		$url = $this->appendSids($url, $getParams[self::LINK_GET_SIDS]);
680		}
681
682		if (isset($getParams['fragment'])) {
683		$url .= self::LINK_FRAGMENT_SEPARATOR.$getParams['fragment'];
684		}
685
686		if ($removeSessionFromUrl) {
687		$url = strtok($url, '?');
688		}
689		}
690		}
691		} else {
692		if ($removeSessionFromUrl) {
693		$getParams = $this->getHttpGetParameters();
694		if (isset($getParams[self::LINK_GET_ACTION])) {
695		$url = substr($url, 0, strpos($url, self::LINK_INDEX_HOME) + 1).'index.php?';
696		foreach ($getParams as $key => $value) {
697		if ($key !== self::LINK_GET_SIDS) {
698		$url .= sprintf('%s=%s&', $key, $value);
699		}
700		}
701		$url = substr($url, 0, -1); // Remove last &
702		}
703		}
704		}
705
706		return $url;
707		}
708
709		/**
710		* Transforms a URI.
711		* @return string
712		*/
713		public function toUri(): string
714		{
715		$url = $this->url;
716		if (!empty($this->url)) {
717		if ((!$this->hasScheme()) && (!$this->isInternalReference())) {
718		$url = $this->getDefaultScheme().$this->url;
719		}
720		}
721
722		return $url;
723		}
724
725		/**
726		* Returns the current URL.
727		* @return string
728		*/
729		public function getCurrentUrl(): string
730		{
731		return $this->config->getDefaultUrl().Strings::htmlspecialchars(substr($_SERVER['REQUEST_URI'], 1));
732		}
733
734		/**
735		* Static method to generate simple HTML anchors.
736		* @static
737		* @param string $url URL
738		* @param string $text Text
739		* @param bool $active Add CSS class named "active"?
740		* @return string
741		*/
742		public static function renderNavigationLink(string $url, string $text, bool $active = false): string
743		{
744		return printf(
745		'<a %s href="%s">%s</a>',
746		(true === $active ? 'class="active"' : ''),
747		$url,
748		$text
749		);
750		}
751		}
752

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Link::toString() F last analyzed 2019-02-24 13:29 UTC

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last analyzed 2019-02-24 13:29 UTC