midcom_helper_misc::get_snippet_content() - Code Metrics - Inspection of "Remove callback_snippet option, this has been supe..." - flack/openpsa - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( 412da6...388458 )

by Andreas

created 2020-06-07 17:02 UTC

midcom_helper_misc::get_snippet_content() A

↳ Parent: midcom_helper_misc

Complexity

Conditions	2
Paths	2

Size

Total Lines	7
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	2.032

Importance

Changes

Metric	Value
cc	2
eloc	4
nc	2
nop	1
dl	0
loc	7
ccs	4
cts	5
cp	0.8
crap	2.032
rs	10
c	0
b	0
f	0

<?php
/**
 * @package midcom.helper
 * @author The Midgard Project, http://www.midgard-project.org
 * @copyright The Midgard Project, http://www.midgard-project.org
 * @license http://www.gnu.org/licenses/lgpl.html GNU Lesser General Public License
 */

use Cocur\Slugify\Slugify;

/**
 * Miscellaneous helper functions
 *
 * @package midcom.helper
 */
class midcom_helper_misc
{
    /**
     * @param integer $length
     * @param string $characters
     * @throws InvalidArgumentException
     */
    public static function random_string($length, $characters) : string
    {
        if ($length < 1) {
            throw new InvalidArgumentException('invalid length');
        }
        $size = strlen($characters) - 1;
        if ($size < 1) {
            throw new InvalidArgumentException('invalid characters');
        }
        $return = '';
        for ($i = 0; $i < $length; $i++) {
            $return .= $characters[random_int(0, $size)];
        }
        return $return;
    }

    /**
     * @param string $input
     */
    public static function urlize($input) : string
    {
        $slugify = new Slugify;
        return $slugify->slugify($input);
    }

    /**
     * Turn midcom config files into PHP arrays
     *
     * @param string $data The data to parse
     * @throws midcom_error
     */
    public static function parse_config($data) : array
    {
        $data = eval("return [{$data}\n];");

        if ($data === false) {
            throw new midcom_error("Failed to parse config data, see above for PHP errors.");
        }
        return $data;
    }

    /**
     * This helper function searches for a snippet either in the Filesystem
     * or in the database and returns its content or code-field, respectively.
     *
     * Prefix the snippet Path with 'file:' for retrieval of a file relative to
     * MIDCOM_ROOT; omit it to get the code field of a Snippet.
     *
     * Any error (files not found) will return null. If you want to trigger an error,
     * look for midcom_helper_misc::get_snippet_content.
     *
     * @param string $path  The URL to the snippet.
     * @return string       The content of the snippet/file.
     */
    public static function get_snippet_content_graceful($path)
    {
        static $cached_snippets = [];

        if (!array_key_exists($path, $cached_snippets)) {
            if (substr($path, 0, 5) == 'file:') {
                $cached_snippets[$path] = self::load_from_file($path);
            } elseif (substr($path, 0, 5) == 'conf:') {
                $cached_snippets[$path] = self::load(midcom::get()->config->get('midcom_config_basedir') . '/midcom' . substr($path, 5));
            } else {
                $cached_snippets[$path] = self::load_from_snippet($path);
            }
        }

        return $cached_snippets[$path];
    }

    private static function load_from_snippet(string $path)
    {
        $snippet = new midgard_snippet();
        if (!$snippet->get_by_path($path)) {
            return null;
        }
        if (isset(midcom::get()->cache->content)) {
            midcom::get()->cache->content->register($snippet->guid);
        }
        return $snippet->code;
    }

    private static function load_from_file(string $path)
    {
        $filename = MIDCOM_ROOT . substr($path, 5);
        if (!file_exists($filename)) {
            // try in src
            $filename = preg_replace('/\/lib\/?$/', '/src', MIDCOM_ROOT) . substr($path, 5);
            if (!file_exists($filename)) {
                //If we can't find the file in-tree, we look for out-of-tree components before giving up
                $filename = substr($path, 6);
                if (preg_match('|.+?/.+?/.+?/|', $filename)) {
                    $component_name = preg_replace('|(.+?)/(.+?)/(.+?)/.+|', '$1.$2.$3', $filename);
                    if (midcom::get()->componentloader->is_installed($component_name)) {
                        $filename = substr($filename, strlen($component_name));
                        $filename = midcom::get()->componentloader->path_to_snippetpath($component_name) . $filename;
                    }
                }
            }
        }
        return self::load($filename);
    }

    private static function load(string $filename)
    {
        if (!file_exists($filename)) {
            return null;
        }
        return file_get_contents($filename);
    }

    /**
     * This helper function searches for a snippet either in the Filesystem
     * or in the database and returns its content or code-field, respectively.
     *
     * Prefix the snippet Path with 'file:' for retrieval of a file relative to
     * MIDCOM_ROOT; omit it to get the code field of a Snippet.
     *
     * Any error (files not found) will raise a MidCOM Error. If you want a more
     * graceful behavior, look for midcom_helper_misc::get_snippet_content_graceful
     *
     * @param string $path    The URL to the snippet.
     */
    public static function get_snippet_content($path) : string
    {
        $data = self::get_snippet_content_graceful($path);
        if ($data === null) {

            throw new midcom_error("Could not load the contents of the snippet {$path}: Snippet does not exist.");
        }
        return $data;
    }

    /**
     * This is a bit of a hack to allow &(); tags
     *
     * @param string $code The unprocessed code
     */
    public static function preparse($code) : string
    {
        // Get style elements
        $code = preg_replace_callback("/<\\(([a-zA-Z0-9 _-]+)\\)>/", [midcom_helper_misc::class, 'include_element'], $code);
        // Echo variables
        return preg_replace_callback("%&\(([^)]*)\);%i", [midcom_helper_formatter::class, 'convert_to_php'], $code);
    }

    /**
     * Include a theme element
     */
    public static function include_element($name) : string
    {
        if (is_array($name)) {
            $element = $name[1];
        } else {
            $element = $name;
        }

        switch ($element) {
            case 'title':
                return midcom::get()->config->get('midcom_site_title');
            case 'content':
                return '<?php midcom_core_context::get()->show(); ?>';
            default:
                $value = self::get_element_content($element);

                if (empty($value)) {
                    return '';
                }
                return preg_replace_callback("/<\\(([a-zA-Z0-9 _-]+)\\)>/", [midcom_helper_misc::class, 'include_element'], $value);
        }
    }

    /**
     * Find MIME type image for a document
     *
     * Used in midcom.helper.imagepopup, midgard.admin.asgard and org.openpsa.documents.
     *
     * @param string $mimetype  Document MIME type
     * @return string    Path to the icon
     */
    public static function get_mime_icon($mimetype) : string
    {
        $mime_fspath = MIDCOM_STATIC_ROOT . '/stock-icons/mime';
        $mime_urlpath = MIDCOM_STATIC_URL . '/stock-icons/mime';
        $mimetype_filename = str_replace('/', '-', $mimetype);
        if (!is_readable($mime_fspath)) {
            debug_add("Couldn't read directory {$mime_fspath}", MIDCOM_LOG_WARN);
        }

        $check_files = [];
        switch ($mimetype_filename) {
            case 'application-x-zip-compressed':
                $check_files[] = "gnome-application-zip.png";
                break;
            default:
                $check_files[] = "{$mimetype_filename}.png";
                $check_files[] = "gnome-{$mimetype_filename}.png";
                break;
        }

        // Return first match
        foreach ($check_files as $filename) {
            if (is_readable("{$mime_fspath}/{$filename}")) {
                return "{$mime_urlpath}/{$filename}";
            }
        }
        // Default icon if there is none for the MIME type
        return $mime_urlpath . '/gnome-unknown.png';
    }

    /**
     * Pretty print file sizes
     *
     * @param int $size  File size in bytes
     */
    public static function filesize_to_string($size) : string
    {
        if ($size >= 1048576) {
            // More than a meg
            return sprintf("%01.1f", $size / 1048576) . " MB";
        }
        if ($size >= 1024) {
            // More than a kilo
            return sprintf("%01.1f", $size / 1024) . " KB";
        }
        return $size . " Bytes";
    }

    /**
     * Fix newline etc encoding issues in serialized data
     *
     * @param string $data The data to fix.
     * @return string $data with serializations fixed.
     */
    public static function fix_serialization($data)
    {
        //Skip on empty data
        if (empty($data)) {
            return $data;
        }

        $preg='/s:([0-9]+):"(.*?)";/ms';
        preg_match_all($preg, $data, $matches);
        $cache = [];

        foreach ($matches[0] as $k => $origFullStr) {
            $origLen = $matches[1][$k];
            $origStr = $matches[2][$k];
            $newLen = strlen($origStr);
            if ($newLen != $origLen) {
                $newFullStr = "s:$newLen:\"$origStr\";";
                //For performance we cache information on which strings have already been replaced
                if (!array_key_exists($origFullStr, $cache)) {
                    $data = str_replace($origFullStr, $newFullStr, $data);
                    $cache[$origFullStr] = true;
                }
            }
        }

        return $data;
    }

    /**
     * Returns the first instance of a given component on the site.
     *
     * @param string $component The component name
     * @return array NAP array of the first component instance found
     */
    public static function find_node_by_component($component)
    {
        static $cache = [];

        if (!array_key_exists($component, $cache)) {
            $cache[$component] = null;

            $nap = new midcom_helper_nav;
            $node_id = $nap->get_root_node();
            $root_node = $nap->get_node($node_id);

            if ($root_node[MIDCOM_NAV_COMPONENT] == $component) {
                $cache[$component] = $root_node;
            } else {
                $qb = midcom_db_topic::new_query_builder();
                $qb->add_constraint('component', '=', $component);
                $qb->add_constraint('name', '<>', '');
                $qb->add_constraint('up', 'INTREE', $node_id);
                $qb->set_limit(1);
                $topics = $qb->execute();

                if (count($topics) === 1) {
                    $cache[$component] = $nap->get_node($topics[0]->id);
                }
            }
        }

        return $cache[$component];
    }

    /**
     * Get the content of the element by the passed element name.
     * Tries to resolve path according to theme-name & page
     *
     * @param string $element_name
     */
    public static function get_element_content($element_name)
    {
        $theme = midcom::get()->config->get('theme');
        $path_array = explode('/', $theme);

        //get the page if there is one
        $page = midcom_connection::get_url('page_style');
        $substyle = midcom_core_context::get()->get_key(MIDCOM_CONTEXT_SUBSTYLE);
        //check if we have elements for the sub-styles
        while (!empty($path_array)) {
            $theme_path = implode('/', $path_array);
            $candidates = [];
            if ($substyle) {
                $candidates[] = '/' . $substyle . '/' . $element_name;
            }
            if ($page) {
                $candidates[] = $page . '/' . $element_name;
            }
            $candidates[] = '/' . $element_name;

            foreach ($candidates as $candidate) {
                $filename = OPENPSA2_THEME_ROOT . $theme_path . '/style' . $candidate . '.php';
                if (file_exists($filename)) {
                    return file_get_contents($filename);
                }
            }

            //remove last theme part
            array_pop($path_array);
        }

        return false;
    }
}


1		<?php
2		/**
3		* @package midcom.helper
4		* @author The Midgard Project, http://www.midgard-project.org
5		* @copyright The Midgard Project, http://www.midgard-project.org
6		* @license http://www.gnu.org/licenses/lgpl.html GNU Lesser General Public License
7		*/
8
9		use Cocur\Slugify\Slugify;
10
11		/**
12		* Miscellaneous helper functions
13		*
14		* @package midcom.helper
15		*/
16		class midcom_helper_misc
17		{
18		/**
19		* @param integer $length
20		* @param string $characters
21		* @throws InvalidArgumentException
22		*/
23	13	public static function random_string($length, $characters) : string
24		{
25	13	if ($length < 1) {
26		throw new InvalidArgumentException('invalid length');
27		}
28	13	$size = strlen($characters) - 1;
29	13	if ($size < 1) {
30		throw new InvalidArgumentException('invalid characters');
31		}
32	13	$return = '';
33	13	for ($i = 0; $i < $length; $i++) {
34	13	$return .= $characters[random_int(0, $size)];
35		}
36	13	return $return;
37		}
38
39		/**
40		* @param string $input
41		*/
42	27	public static function urlize($input) : string
43		{
44	27	$slugify = new Slugify;
45	27	return $slugify->slugify($input);
46		}
47
48		/**
49		* Turn midcom config files into PHP arrays
50		*
51		* @param string $data The data to parse
52		* @throws midcom_error
53		*/
54	513	public static function parse_config($data) : array
55		{
56	513	$data = eval("return [{$data}\n];");
		0 ignored issues – show introduced 2018-07-10 20:50 UTC by Report Bug Copy Issue Report The use of eval() is discouraged. Loading history...
57	513	if ($data === false) {
58		throw new midcom_error("Failed to parse config data, see above for PHP errors.");
59		}
60	513	return $data;
61		}
62
63		/**
64		* This helper function searches for a snippet either in the Filesystem
65		* or in the database and returns its content or code-field, respectively.
66		*
67		* Prefix the snippet Path with 'file:' for retrieval of a file relative to
68		* MIDCOM_ROOT; omit it to get the code field of a Snippet.
69		*
70		* Any error (files not found) will return null. If you want to trigger an error,
71		* look for midcom_helper_misc::get_snippet_content.
72		*
73		* @param string $path The URL to the snippet.
74		* @return string The content of the snippet/file.
75		*/
76	513	public static function get_snippet_content_graceful($path)
77		{
78	513	static $cached_snippets = [];
79
80	513	if (!array_key_exists($path, $cached_snippets)) {
81	63	if (substr($path, 0, 5) == 'file:') {
82	46	$cached_snippets[$path] = self::load_from_file($path);
83	22	} elseif (substr($path, 0, 5) == 'conf:') {
84	22	$cached_snippets[$path] = self::load(midcom::get()->config->get('midcom_config_basedir') . '/midcom' . substr($path, 5));
85		} else {
86	17	$cached_snippets[$path] = self::load_from_snippet($path);
87		}
88		}
89
90	513	return $cached_snippets[$path];
91		}
92
93	17	private static function load_from_snippet(string $path)
94		{
95	17	$snippet = new midgard_snippet();
96	17	if (!$snippet->get_by_path($path)) {
97	17	return null;
98		}
99		if (isset(midcom::get()->cache->content)) {
100		midcom::get()->cache->content->register($snippet->guid);
101		}
102		return $snippet->code;
103		}
104
105	46	private static function load_from_file(string $path)
106		{
107	46	$filename = MIDCOM_ROOT . substr($path, 5);
108	46	if (!file_exists($filename)) {
109		// try in src
110	2	$filename = preg_replace('/\/lib\/?$/', '/src', MIDCOM_ROOT) . substr($path, 5);
111	2	if (!file_exists($filename)) {
112		//If we can't find the file in-tree, we look for out-of-tree components before giving up
113		$filename = substr($path, 6);
114		if (preg_match('\|.+?/.+?/.+?/\|', $filename)) {
115		$component_name = preg_replace('\|(.+?)/(.+?)/(.+?)/.+\|', '$1.$2.$3', $filename);
116		if (midcom::get()->componentloader->is_installed($component_name)) {
117		$filename = substr($filename, strlen($component_name));
118		$filename = midcom::get()->componentloader->path_to_snippetpath($component_name) . $filename;
119		}
120		}
121		}
122		}
123	46	return self::load($filename);
124		}
125
126	63	private static function load(string $filename)
127		{
128	63	if (!file_exists($filename)) {
129	22	return null;
130		}
131	46	return file_get_contents($filename);
132		}
133
134		/**
135		* This helper function searches for a snippet either in the Filesystem
136		* or in the database and returns its content or code-field, respectively.
137		*
138		* Prefix the snippet Path with 'file:' for retrieval of a file relative to
139		* MIDCOM_ROOT; omit it to get the code field of a Snippet.
140		*
141		* Any error (files not found) will raise a MidCOM Error. If you want a more
142		* graceful behavior, look for midcom_helper_misc::get_snippet_content_graceful
143		*
144		* @param string $path The URL to the snippet.
145		*/
146	247	public static function get_snippet_content($path) : string
147		{
148	247	$data = self::get_snippet_content_graceful($path);
149	247	if ($data === null) {
		0 ignored issues – show introduced 2019-01-15 20:48 UTC by Report Bug Copy Issue Report The condition `$data === null` is always `false`. Loading history...
150		throw new midcom_error("Could not load the contents of the snippet {$path}: Snippet does not exist.");
151		}
152	247	return $data;
153		}
154
155		/**
156		* This is a bit of a hack to allow &(); tags
157		*
158		* @param string $code The unprocessed code
159		*/
160	201	public static function preparse($code) : string
161		{
162		// Get style elements
163	201	$code = preg_replace_callback("/<\\(([a-zA-Z0-9 _-]+)\\)>/", [midcom_helper_misc::class, 'include_element'], $code);
164		// Echo variables
165	201	return preg_replace_callback("%&\(([^)]*)\);%i", [midcom_helper_formatter::class, 'convert_to_php'], $code);
166		}
167
168		/**
169		* Include a theme element
170		*/
171	20	public static function include_element($name) : string
172		{
173	20	if (is_array($name)) {
174	20	$element = $name[1];
175		} else {
176		$element = $name;
177		}
178
179	20	switch ($element) {
180	20	case 'title':
181	10	return midcom::get()->config->get('midcom_site_title');
182	19	case 'content':
183	19	return '<?php midcom_core_context::get()->show(); ?>';
184		default:
185	9	$value = self::get_element_content($element);
186
187	9	if (empty($value)) {
188		return '';
189		}
190	9	return preg_replace_callback("/<\\(([a-zA-Z0-9 _-]+)\\)>/", [midcom_helper_misc::class, 'include_element'], $value);
191		}
192		}
193
194		/**
195		* Find MIME type image for a document
196		*
197		* Used in midcom.helper.imagepopup, midgard.admin.asgard and org.openpsa.documents.
198		*
199		* @param string $mimetype Document MIME type
200		* @return string Path to the icon
201		*/
202		public static function get_mime_icon($mimetype) : string
203		{
204		$mime_fspath = MIDCOM_STATIC_ROOT . '/stock-icons/mime';
205		$mime_urlpath = MIDCOM_STATIC_URL . '/stock-icons/mime';
206		$mimetype_filename = str_replace('/', '-', $mimetype);
207		if (!is_readable($mime_fspath)) {
208		debug_add("Couldn't read directory {$mime_fspath}", MIDCOM_LOG_WARN);
209		}
210
211		$check_files = [];
212		switch ($mimetype_filename) {
213		case 'application-x-zip-compressed':
214		$check_files[] = "gnome-application-zip.png";
215		break;
216		default:
217		$check_files[] = "{$mimetype_filename}.png";
218		$check_files[] = "gnome-{$mimetype_filename}.png";
219		break;
220		}
221
222		// Return first match
223		foreach ($check_files as $filename) {
224		if (is_readable("{$mime_fspath}/{$filename}")) {
225		return "{$mime_urlpath}/{$filename}";
226		}
227		}
228		// Default icon if there is none for the MIME type
229		return $mime_urlpath . '/gnome-unknown.png';
230		}
231
232		/**
233		* Pretty print file sizes
234		*
235		* @param int $size File size in bytes
236		*/
237	7	public static function filesize_to_string($size) : string
238		{
239	7	if ($size >= 1048576) {
240		// More than a meg
241		return sprintf("%01.1f", $size / 1048576) . " MB";
242		}
243	7	if ($size >= 1024) {
244		// More than a kilo
245		return sprintf("%01.1f", $size / 1024) . " KB";
246		}
247	7	return $size . " Bytes";
248		}
249
250		/**
251		* Fix newline etc encoding issues in serialized data
252		*
253		* @param string $data The data to fix.
254		* @return string $data with serializations fixed.
255		*/
256		public static function fix_serialization($data)
257		{
258		//Skip on empty data
259		if (empty($data)) {
260		return $data;
261		}
262
263		$preg='/s:([0-9]+):"(.*?)";/ms';
264		preg_match_all($preg, $data, $matches);
265		$cache = [];
266
267		foreach ($matches[0] as $k => $origFullStr) {
268		$origLen = $matches[1][$k];
269		$origStr = $matches[2][$k];
270		$newLen = strlen($origStr);
271		if ($newLen != $origLen) {
272		$newFullStr = "s:$newLen:\"$origStr\";";
273		//For performance we cache information on which strings have already been replaced
274		if (!array_key_exists($origFullStr, $cache)) {
275		$data = str_replace($origFullStr, $newFullStr, $data);
276		$cache[$origFullStr] = true;
277		}
278		}
279		}
280
281		return $data;
282		}
283
284		/**
285		* Returns the first instance of a given component on the site.
286		*
287		* @param string $component The component name
288		* @return array NAP array of the first component instance found
289		*/
290	6	public static function find_node_by_component($component)
291		{
292	6	static $cache = [];
293
294	6	if (!array_key_exists($component, $cache)) {
295	2	$cache[$component] = null;
296
297	2	$nap = new midcom_helper_nav;
298	2	$node_id = $nap->get_root_node();
299	2	$root_node = $nap->get_node($node_id);
300
301	2	if ($root_node[MIDCOM_NAV_COMPONENT] == $component) {
302		$cache[$component] = $root_node;
303		} else {
304	2	$qb = midcom_db_topic::new_query_builder();
305	2	$qb->add_constraint('component', '=', $component);
306	2	$qb->add_constraint('name', '<>', '');
307	2	$qb->add_constraint('up', 'INTREE', $node_id);
308	2	$qb->set_limit(1);
309	2	$topics = $qb->execute();
310
311	2	if (count($topics) === 1) {
312	1	$cache[$component] = $nap->get_node($topics[0]->id);
313		}
314		}
315		}
316
317	6	return $cache[$component];
318		}
319
320		/**
321		* Get the content of the element by the passed element name.
322		* Tries to resolve path according to theme-name & page
323		*
324		* @param string $element_name
325		*/
326	202	public static function get_element_content($element_name)
327		{
328	202	$theme = midcom::get()->config->get('theme');
329	202	$path_array = explode('/', $theme);
330
331		//get the page if there is one
332	202	$page = midcom_connection::get_url('page_style');
333	202	$substyle = midcom_core_context::get()->get_key(MIDCOM_CONTEXT_SUBSTYLE);
334		//check if we have elements for the sub-styles
335	202	while (!empty($path_array)) {
336	202	$theme_path = implode('/', $path_array);
337	202	$candidates = [];
338	202	if ($substyle) {
339	31	$candidates[] = '/' . $substyle . '/' . $element_name;
340		}
341	202	if ($page) {
342		$candidates[] = $page . '/' . $element_name;
343		}
344	202	$candidates[] = '/' . $element_name;
345
346	202	foreach ($candidates as $candidate) {
347	202	$filename = OPENPSA2_THEME_ROOT . $theme_path . '/style' . $candidate . '.php';
348	202	if (file_exists($filename)) {
349	10	return file_get_contents($filename);
350		}
351		}
352
353		//remove last theme part
354	202	array_pop($path_array);
355		}
356
357	202	return false;
358		}
359		}
360

flack / openpsa

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midcom_helper_misc::get_snippet_content() A

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