Logger::getFallbackDirectory() - Code Metrics - Inspection of "Merge pull request #8 from MarwanAlsoltany/dev" - MarwanAlsoltany/amqp-agent - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 3c6d4a...e8d3de )

by Marwan

created 2020-09-30 13:32 UTC

Logger::getFallbackDirectory() A

↳ Parent: Project

Complexity

Conditions	3
Paths	4

Size

Total Lines	7
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	3

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	3
eloc	4
c	1
b	0
f	0
nc	4
nop	0
dl	0
loc	7
ccs	5
cts	5
cp	1
crap	3
rs	10

<?php
/**
 * @author Marwan Al-Soltany <[email protected]>
 * @copyright Marwan Al-Soltany 2020
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

namespace MAKS\AmqpAgent\Helper;

use MAKS\AmqpAgent\Helper\Utility;

/**
 * A class to write logs, exposing methods that work statically and on instantiation.
 * This class DOES NOT implement `Psr\Log\LoggerInterface`.
 *
 * Example:
 * ```
 * // static
 * Logger::log('Some message to log.', 'filename', 'path/to/some/directory');
 * // instantiated
 * $logger = new Logger();
 * $logger->setFilename('filename');
 * $logger->setDirectory('path/to/some/directory');
 * $logger->write('Some message to log.');
 * ```
 *
 * @since 1.0.0
 */
class Logger
{
    /**
     * The filename of the log file.
     * @var string
     */
    public $filename;

    /**
     * The directory where the log file gets written.
     * @var string
     */
    public $directory;


    /**
     * Passing null for $directory will raise a warning and force the logger to find a reasonable directory to write the file in.
     * @param string $filename The name wished to be given to the file. Pass null for auto-generate.
     * @param string $directory The directory where the log file should be written.
     */
    public function __construct(?string $filename, ?string $directory)
    {
        $this->filename = $filename;
        $this->directory = $directory;
    }


    /**
     * Logs a message to a file, generates it if it does not exist and raises a user-level warning and/or notice on misuse.
     * @param string $message The message wished to be logged.
     * @return bool True on success.
     */
    public function write(string $message): bool
    {
        return self::log($message, $this->filename, $this->directory);
    }

    /**
     * Gets filename property.
     * @return string
     */
    public function getFilename()
    {
        return $this->filename;
    }

    /**
     * Sets filename property.
     * @param string $filename  Filename
     * @return self
     */
    public function setFilename(string $filename)
    {
        $this->filename = $filename;
        return $this;
    }

    /**
     * Gets directory property.
     * @return string
     */
    public function getDirectory()
    {
        return $this->directory;
    }

    /**
     * Sets directory property.
     * @param string $directory  Directory
     * @return self
     */
    public function setDirectory(string $directory)
    {
        $this->directory = $directory;
        return $this;
    }


    /**
     * Logs a message to a file, generates it if it does not exist and raises a user-level warning and/or notice on misuse.
     * @param string $message The message wished to be logged.
     * @param string $filename [optional] The name wished to be given to the file.
     * @param string $directory [optional] The directory where the log file should be written.
     * @return bool True if message was written.
     */
    public static function log(string $message, ?string $filename = null, ?string $directory = null): bool
    {
        $passed = false;

        if (null === $filename) {
            $filename = self::getFallbackFilename();
            Utility::emit(
                [
                    'yellow' => sprintf('%s() was called without specifying a filename.', __METHOD__),
                    'green'  => sprintf('Log file will be named: "%s".', $filename)
                ],
                null,
                E_USER_NOTICE
            );
        }

        if (null === $directory) {
            $directory = self::getFallbackDirectory();
            Utility::emit(
                [
                    'yellow' => sprintf('%s() was called without specifying a directory.', __METHOD__),
                    'red'    => sprintf('Log file will be written in: "%s".', $directory)
                ],
                null,
                E_USER_WARNING
            );
        }

        $file = self::getNormalizedPath($directory, $filename);

        // create log file if it does not exist
        if (!is_file($file) && is_writable($directory)) {
            $signature = 'Created by ' . __METHOD__ . date('() \o\\n l jS \of F Y h:i:s A (Ymdhis)') . PHP_EOL;
            file_put_contents($file, $signature, null, stream_context_create());
            chmod($file, 0775);
        }

        // write in the log file
        if (is_writable($file)) {
            // empty the the file if it exceeds 64MB
            // @codeCoverageIgnoreStart
            if (filesize($file) > 6.4e+7) {
                $stream = fopen($file, 'r');
                if (is_resource($stream)) {
                    $signature = fgets($stream) . 'For exceeding 64MB, it was overwritten on ' . date('l jS \of F Y h:i:s A (Ymdhis)') . PHP_EOL;
                    fclose($stream);
                    file_put_contents($file, $signature, null, stream_context_create());
                    chmod($file, 0775);
                }
            }
            // @codeCoverageIgnoreEnd

            $timestamp = Utility::time()->format(DATE_ISO8601);
            $log = $timestamp . ' ' . $message . PHP_EOL;

            $stream = fopen($file, 'a+');
            if (is_resource($stream)) {
                fwrite($stream, $log);
                fclose($stream);
                $passed = true;
            }
        }

        return $passed;
    }

    /**
     * Returns a fallback filename based on date.
     * @since 1.2.1
     * @return string
     */
    protected static function getFallbackFilename(): string
    {
        return 'maks-amqp-agent-log-' . date("Ymd");
    }

    /**
     * Returns a fallback writing directory based on caller.
     * @since 1.2.1
     * @return string
     */
    protected static function getFallbackDirectory(): string
    {
        $backtrace = Utility::backtrace(['file'], 0);
        $fallback1 = strlen($_SERVER["DOCUMENT_ROOT"]) ? $_SERVER["DOCUMENT_ROOT"] : null;
        $fallback2 = isset($backtrace['file']) ? dirname($backtrace['file']) : __DIR__;

        return $fallback1 ?? $fallback2;
    }

    /**
     * Returns a normalized path based on OS.
     * @since 1.2.1
     * @param string $directory The directory.
     * @param string $filename The Filename.
     * @return string The full normalized path.
     */
    protected static function getNormalizedPath(string $directory, string $filename): string
    {
        $ext = '.log';
        $filename = substr($filename, -strlen($ext)) === $ext ? $filename : $filename . $ext;
        $directory = $directory . DIRECTORY_SEPARATOR;
        $path = $directory . $filename;

        return preg_replace("/\/+|\\+/", DIRECTORY_SEPARATOR, $path);
    }
}


1		<?php
2		/**
3		* @author Marwan Al-Soltany <[email protected]>
4		* @copyright Marwan Al-Soltany 2020
5		* For the full copyright and license information, please view
6		* the LICENSE file that was distributed with this source code.
7		*/
8
9		namespace MAKS\AmqpAgent\Helper;
10
11		use MAKS\AmqpAgent\Helper\Utility;
12
13		/**
14		* A class to write logs, exposing methods that work statically and on instantiation.
15		* This class DOES NOT implement `Psr\Log\LoggerInterface`.
16		*
17		* Example:
18		* ```
19		* // static
20		* Logger::log('Some message to log.', 'filename', 'path/to/some/directory');
21		* // instantiated
22		* $logger = new Logger();
23		* $logger->setFilename('filename');
24		* $logger->setDirectory('path/to/some/directory');
25		* $logger->write('Some message to log.');
26		* ```
27		*
28		* @since 1.0.0
29		*/
30		class Logger
31		{
32		/**
33		* The filename of the log file.
34		* @var string
35		*/
36		public $filename;
37
38		/**
39		* The directory where the log file gets written.
40		* @var string
41		*/
42		public $directory;
43
44
45		/**
46		* Passing null for $directory will raise a warning and force the logger to find a reasonable directory to write the file in.
47		* @param string $filename The name wished to be given to the file. Pass null for auto-generate.
48		* @param string $directory The directory where the log file should be written.
49		*/
50	5	public function __construct(?string $filename, ?string $directory)
51		{
52	5	$this->filename = $filename;
53	5	$this->directory = $directory;
54	5	}
55
56
57		/**
58		* Logs a message to a file, generates it if it does not exist and raises a user-level warning and/or notice on misuse.
59		* @param string $message The message wished to be logged.
60		* @return bool True on success.
61		*/
62	2	public function write(string $message): bool
63		{
64	2	return self::log($message, $this->filename, $this->directory);
65		}
66
67		/**
68		* Gets filename property.
69		* @return string
70		*/
71	1	public function getFilename()
72		{
73	1	return $this->filename;
74		}
75
76		/**
77		* Sets filename property.
78		* @param string $filename Filename
79		* @return self
80		*/
81	1	public function setFilename(string $filename)
82		{
83	1	$this->filename = $filename;
84	1	return $this;
85		}
86
87		/**
88		* Gets directory property.
89		* @return string
90		*/
91	1	public function getDirectory()
92		{
93	1	return $this->directory;
94		}
95
96		/**
97		* Sets directory property.
98		* @param string $directory Directory
99		* @return self
100		*/
101	1	public function setDirectory(string $directory)
102		{
103	1	$this->directory = $directory;
104	1	return $this;
105		}
106
107
108		/**
109		* Logs a message to a file, generates it if it does not exist and raises a user-level warning and/or notice on misuse.
110		* @param string $message The message wished to be logged.
111		* @param string $filename [optional] The name wished to be given to the file.
112		* @param string $directory [optional] The directory where the log file should be written.
113		* @return bool True if message was written.
114		*/
115	3	public static function log(string $message, ?string $filename = null, ?string $directory = null): bool
116		{
117	3	$passed = false;
118
119	3	if (null === $filename) {
120	1	$filename = self::getFallbackFilename();
121	1	Utility::emit(
122		[
123	1	'yellow' => sprintf('%s() was called without specifying a filename.', __METHOD__),
124	1	'green' => sprintf('Log file will be named: "%s".', $filename)
125		],
126	1	null,
127	1	E_USER_NOTICE
128		);
129		}
130
131	3	if (null === $directory) {
132	1	$directory = self::getFallbackDirectory();
133	1	Utility::emit(
134		[
135	1	'yellow' => sprintf('%s() was called without specifying a directory.', __METHOD__),
136	1	'red' => sprintf('Log file will be written in: "%s".', $directory)
137		],
138	1	null,
139	1	E_USER_WARNING
140		);
141		}
142
143	3	$file = self::getNormalizedPath($directory, $filename);
144
145		// create log file if it does not exist
146	3	if (!is_file($file) && is_writable($directory)) {
147	3	$signature = 'Created by ' . __METHOD__ . date('() \o\\n l jS \of F Y h:i:s A (Ymdhis)') . PHP_EOL;
148	3	file_put_contents($file, $signature, null, stream_context_create());
149	3	chmod($file, 0775);
150		}
151
152		// write in the log file
153	3	if (is_writable($file)) {
154		// empty the the file if it exceeds 64MB
155		// @codeCoverageIgnoreStart
156		if (filesize($file) > 6.4e+7) {
157		$stream = fopen($file, 'r');
158		if (is_resource($stream)) {
159		$signature = fgets($stream) . 'For exceeding 64MB, it was overwritten on ' . date('l jS \of F Y h:i:s A (Ymdhis)') . PHP_EOL;
160		fclose($stream);
161		file_put_contents($file, $signature, null, stream_context_create());
162		chmod($file, 0775);
163		}
164		}
165		// @codeCoverageIgnoreEnd
166
167	3	$timestamp = Utility::time()->format(DATE_ISO8601);
168	3	$log = $timestamp . ' ' . $message . PHP_EOL;
169
170	3	$stream = fopen($file, 'a+');
171	3	if (is_resource($stream)) {
172	3	fwrite($stream, $log);
173	3	fclose($stream);
174	3	$passed = true;
175		}
176		}
177
178	3	return $passed;
179		}
180
181		/**
182		* Returns a fallback filename based on date.
183		* @since 1.2.1
184		* @return string
185		*/
186	1	protected static function getFallbackFilename(): string
187		{
188	1	return 'maks-amqp-agent-log-' . date("Ymd");
189		}
190
191		/**
192		* Returns a fallback writing directory based on caller.
193		* @since 1.2.1
194		* @return string
195		*/
196	1	protected static function getFallbackDirectory(): string
197		{
198	1	$backtrace = Utility::backtrace(['file'], 0);
199	1	$fallback1 = strlen($_SERVER["DOCUMENT_ROOT"]) ? $_SERVER["DOCUMENT_ROOT"] : null;
200	1	$fallback2 = isset($backtrace['file']) ? dirname($backtrace['file']) : __DIR__;
201
202	1	return $fallback1 ?? $fallback2;
203		}
204
205		/**
206		* Returns a normalized path based on OS.
207		* @since 1.2.1
208		* @param string $directory The directory.
209		* @param string $filename The Filename.
210		* @return string The full normalized path.
211		*/
212	3	protected static function getNormalizedPath(string $directory, string $filename): string
213		{
214	3	$ext = '.log';
215	3	$filename = substr($filename, -strlen($ext)) === $ext ? $filename : $filename . $ext;
216	3	$directory = $directory . DIRECTORY_SEPARATOR;
217	3	$path = $directory . $filename;
218
219	3	return preg_replace("/\/+\|\\+/", DIRECTORY_SEPARATOR, $path);
220		}
221		}
222

MarwanAlsoltany / amqp-agent

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Logger::getFallbackDirectory() A

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