HtaccessFirewall::readLinesWithPrefix() - Code Metrics - Inspection of "Add exists(), readable() and writable() to Htacces..." - jpkleemans/htaccess-firewall - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( a71ff0...f66167 )

by Jan-Paul

created 2017-03-22 11:20 UTC

HtaccessFirewall::readLinesWithPrefix() B

↳ Parent: HtaccessFirewall

Complexity

Conditions	5
Paths	8

Size

Total Lines	19
Code Lines	10

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	19
rs	8.8571
c	0
b	0
f	0
cc	5
eloc	10
nc	8
nop	1

<?php

namespace HtaccessFirewall;

use HtaccessFirewall\Filesystem\Filesystem;
use HtaccessFirewall\Filesystem\BuiltInFilesystem;
use HtaccessFirewall\Filesystem\Exception\FileException;
use HtaccessFirewall\Host\Host;

/**
 * Firewall using Htaccess files.
 */
class HtaccessFirewall
{
    /**
     * @var string
     */
    public static $sectionLabel = 'Firewall';

    /**
     * @var string
     */
    private $path;

    /**
     * @var Filesystem
     */
    private $fileSystem;

    /**
     * Initialize HtaccessFirewall.
     *
     * @param $path
     * @param Filesystem $fileSystem
     */
    public function __construct($path, Filesystem $fileSystem = null)
    {
        $this->fileSystem = $fileSystem ?: new BuiltInFilesystem();

        $this->path = $path;
    }

    /**
     * Deny host.
     *
     * @param Host $host
     */
    public function deny(Host $host)
    {
        $this->addLine('deny from ' . $host->toString());
    }

    /**
     * Undeny host.
     *
     * @param Host $host
     */
    public function undeny(Host $host)
    {
        $this->removeLine('deny from ' . $host->toString());
    }

    /**
     * Get all denied hosts.
     *
     * @return string[]
     */
    public function getDenied()
    {
        $lines = $this->readLinesWithPrefix('deny from ');

        foreach ($lines as $key => $line) {
            $host = substr($line, 10);
            $lines[$key] = $host;
        }

        return $lines;
    }

    /**
     * Deactivate all denials.
     */
    public function deactivate()
    {
        $lines = $this->readLinesWithPrefix(array('ErrorDocument 403 ', 'deny from '));

        $insertion = array();
        foreach ($lines as $line) {
            $insertion[] = '#' . $line;
        }

        $this->writeLines($insertion);
    }

    /**
     * Reactivate all deactivated denials.
     */
    public function reactivate()
    {
        $lines = $this->readLinesWithPrefix(array('#ErrorDocument 403 ', '#deny from '));

        $insertion = array();
        $insertion[] = 'order allow,deny';
        foreach ($lines as $line) {
            $insertion[] = substr($line, 1);
        }
        $insertion[] = 'allow from all';

        $this->writeLines($insertion);
    }

    /**
     * Set 403 error message.
     *
     * @param string $message
     */
    public function set403Message($message)
    {
        $message = preg_replace('/\s+/', ' ', $message);
        $message = trim($message);
        $message = str_replace('"', '', $message);

        $line = 'ErrorDocument 403 "' . $message . '"';

        $insertion = array_merge(
            array('order allow,deny'),
            array($line),
            $this->readLinesWithPrefix('deny from '),
            array('allow from all')
        );

        $this->writeLines($insertion);
    }

    /**
     * Remove 403 error message.
     */
    public function remove403Message()
    {
        $this->removeLine('ErrorDocument 403 ');
    }

    /**
     * Check whether Htaccess file exists.
     *
     * @return bool
     */
    public function exists()
    {
        return $this->fileSystem->exists($this->path);
    }

    /**
     * Check whether Htaccess file exists and is readable.
     *
     * @return bool
     */
    public function readable()
    {
        return $this->fileSystem->readable($this->path);
    }

    /**
     * Check whether Htaccess file exists and is writable.
     *
     * @return bool
     */
    public function writable()
    {
        return $this->fileSystem->writable($this->path);
    }

    /**
     * Add single line.
     *
     * @param string $line
     */
    private function addLine($line)
    {
        $insertion = array_merge(
            array('order allow,deny'),
            $this->readLinesWithPrefix(array('ErrorDocument 403 ', 'deny from ')),
            array($line),
            array('allow from all')
        );

        $this->writeLines(array_unique($insertion));
    }

    /**
     * Remove single line.
     *
     * @param string $content
     */
    private function removeLine($content)
    {
        $lines = $this->readLines();

        $insertion = array();
        foreach ($lines as $line) {
            if (strpos($line, $content) !== 0) {
                $insertion[] = $line;
            }
        }

        $this->writeLines($insertion);
    }

    /**
     * Get array of prefixed lines in section.
     *
     * @param string|string[] $prefixes
     *
     * @return string[]
     */
    private function readLinesWithPrefix($prefixes)
    {
        if (!is_array($prefixes)) {
            $prefixes = array($prefixes);
        }

        $lines = $this->readLines();

        $prefixedLines = array();
        foreach ($lines as $line) {
            foreach ($prefixes as $prefix) {
                if (strpos($line, $prefix) === 0) {
                    $prefixedLines[] = $line;
                }
            }
        }

        return $prefixedLines;
    }

    /**
     * Get array of all lines in section.
     *
     * @return string[]
     */
    private function readLines()
    {
        $lines = $this->fileSystem->read($this->path);

        $linesInSection = array();
        $inSection = false;
        foreach ($lines as $line) {
            if ($this->isEndOfSection($line)) {
                break;
            }
            if ($inSection) {
                $linesInSection[] = $line;
            }
            if ($this->isBeginOfSection($line)) {
                $inSection = true;
            }
        }

        return $linesInSection;
    }

    /**
     * Write array of lines to section.
     *
     * @param string[] $lines
     *
     * @throws FileException
     */
    private function writeLines($lines)
    {
        $oldLines = $this->fileSystem->read($this->path);

        $newLines = array();
        $sectionExists = false;
        $inSection = false;
        foreach ($oldLines as $oldLine) {
            if ($this->isBeginOfSection($oldLine)) {
                $inSection = true;
            }
            if (!$inSection) {
                $newLines[] = $oldLine;
            }
            if ($this->isEndOfSection($oldLine)) {
                $newLines = array_merge(
                    $newLines,
                    array('# BEGIN ' . self::$sectionLabel),
                    $lines,
                    array('# END ' . self::$sectionLabel)
                );

                $sectionExists = true;
                $inSection = false;
            }
        }

        if ($inSection && !$sectionExists) {
            throw new FileException('Missing END marker in Htaccess file.');
        }

        if (!$sectionExists) {
            $newLines = array_merge(
                $oldLines,
                array('# BEGIN ' . self::$sectionLabel),
                $lines,
                array('# END ' . self::$sectionLabel)
            );
        }

        $this->fileSystem->write($this->path, $newLines);
    }

    /**
     * Check whether line is the begin of the section.
     *
     * @param $line
     *
     * @return bool
     */
    private function isBeginOfSection($line)
    {
        return strpos($line, '# BEGIN ' . self::$sectionLabel) === 0;
    }

    /**
     * Check whether line is the end of the section.
     *
     * @param $line
     *
     * @return bool
     */
    private function isEndOfSection($line)
    {
        return strpos($line, '# END ' . self::$sectionLabel) === 0;
    }
}


1			<?php
2
3			namespace HtaccessFirewall;
4
5			use HtaccessFirewall\Filesystem\Filesystem;
6			use HtaccessFirewall\Filesystem\BuiltInFilesystem;
7			use HtaccessFirewall\Filesystem\Exception\FileException;
8			use HtaccessFirewall\Host\Host;
9
10			/**
11			* Firewall using Htaccess files.
12			*/
13			class HtaccessFirewall
14			{
15			/**
16			* @var string
17			*/
18			public static $sectionLabel = 'Firewall';
19
20			/**
21			* @var string
22			*/
23			private $path;
24
25			/**
26			* @var Filesystem
27			*/
28			private $fileSystem;
29
30			/**
31			* Initialize HtaccessFirewall.
32			*
33			* @param $path
34			* @param Filesystem $fileSystem
35			*/
36			public function __construct($path, Filesystem $fileSystem = null)
37			{
38			$this->fileSystem = $fileSystem ?: new BuiltInFilesystem();
39
40			$this->path = $path;
41			}
42
43			/**
44			* Deny host.
45			*
46			* @param Host $host
47			*/
48			public function deny(Host $host)
49			{
50			$this->addLine('deny from ' . $host->toString());
51			}
52
53			/**
54			* Undeny host.
55			*
56			* @param Host $host
57			*/
58			public function undeny(Host $host)
59			{
60			$this->removeLine('deny from ' . $host->toString());
61			}
62
63			/**
64			* Get all denied hosts.
65			*
66			* @return string[]
67			*/
68			public function getDenied()
69			{
70			$lines = $this->readLinesWithPrefix('deny from ');
71
72			foreach ($lines as $key => $line) {
73			$host = substr($line, 10);
74			$lines[$key] = $host;
75			}
76
77			return $lines;
78			}
79
80			/**
81			* Deactivate all denials.
82			*/
83			public function deactivate()
84			{
85			$lines = $this->readLinesWithPrefix(array('ErrorDocument 403 ', 'deny from '));
86
87			$insertion = array();
88			foreach ($lines as $line) {
89			$insertion[] = '#' . $line;
90			}
91
92			$this->writeLines($insertion);
93			}
94
95			/**
96			* Reactivate all deactivated denials.
97			*/
98			public function reactivate()
99			{
100			$lines = $this->readLinesWithPrefix(array('#ErrorDocument 403 ', '#deny from '));
101
102			$insertion = array();
103			$insertion[] = 'order allow,deny';
104			foreach ($lines as $line) {
105			$insertion[] = substr($line, 1);
106			}
107			$insertion[] = 'allow from all';
108
109			$this->writeLines($insertion);
110			}
111
112			/**
113			* Set 403 error message.
114			*
115			* @param string $message
116			*/
117			public function set403Message($message)
118			{
119			$message = preg_replace('/\s+/', ' ', $message);
120			$message = trim($message);
121			$message = str_replace('"', '', $message);
122
123			$line = 'ErrorDocument 403 "' . $message . '"';
124
125			$insertion = array_merge(
126			array('order allow,deny'),
127			array($line),
128			$this->readLinesWithPrefix('deny from '),
129			array('allow from all')
130			);
131
132			$this->writeLines($insertion);
133			}
134
135			/**
136			* Remove 403 error message.
137			*/
138			public function remove403Message()
139			{
140			$this->removeLine('ErrorDocument 403 ');
141			}
142
143			/**
144			* Check whether Htaccess file exists.
145			*
146			* @return bool
147			*/
148			public function exists()
149			{
150			return $this->fileSystem->exists($this->path);
151			}
152
153			/**
154			* Check whether Htaccess file exists and is readable.
155			*
156			* @return bool
157			*/
158			public function readable()
159			{
160			return $this->fileSystem->readable($this->path);
161			}
162
163			/**
164			* Check whether Htaccess file exists and is writable.
165			*
166			* @return bool
167			*/
168			public function writable()
169			{
170			return $this->fileSystem->writable($this->path);
171			}
172
173			/**
174			* Add single line.
175			*
176			* @param string $line
177			*/
178			private function addLine($line)
179			{
180			$insertion = array_merge(
181			array('order allow,deny'),
182			$this->readLinesWithPrefix(array('ErrorDocument 403 ', 'deny from ')),
183			array($line),
184			array('allow from all')
185			);
186
187			$this->writeLines(array_unique($insertion));
188			}
189
190			/**
191			* Remove single line.
192			*
193			* @param string $content
194			*/
195			private function removeLine($content)
196			{
197			$lines = $this->readLines();
198
199			$insertion = array();
200			foreach ($lines as $line) {
201			if (strpos($line, $content) !== 0) {
202			$insertion[] = $line;
203			}
204			}
205
206			$this->writeLines($insertion);
207			}
208
209			/**
210			* Get array of prefixed lines in section.
211			*
212			* @param string\|string[] $prefixes
213			*
214			* @return string[]
215			*/
216			private function readLinesWithPrefix($prefixes)
217			{
218			if (!is_array($prefixes)) {
219			$prefixes = array($prefixes);
220			}
221
222			$lines = $this->readLines();
223
224			$prefixedLines = array();
225			foreach ($lines as $line) {
226			foreach ($prefixes as $prefix) {
227			if (strpos($line, $prefix) === 0) {
228			$prefixedLines[] = $line;
229			}
230			}
231			}
232
233			return $prefixedLines;
234			}
235
236			/**
237			* Get array of all lines in section.
238			*
239			* @return string[]
240			*/
241			private function readLines()
242			{
243			$lines = $this->fileSystem->read($this->path);
244
245			$linesInSection = array();
246			$inSection = false;
247			foreach ($lines as $line) {
248			if ($this->isEndOfSection($line)) {
249			break;
250			}
251			if ($inSection) {
252			$linesInSection[] = $line;
253			}
254			if ($this->isBeginOfSection($line)) {
255			$inSection = true;
256			}
257			}
258
259			return $linesInSection;
260			}
261
262			/**
263			* Write array of lines to section.
264			*
265			* @param string[] $lines
266			*
267			* @throws FileException
268			*/
269			private function writeLines($lines)
270			{
271			$oldLines = $this->fileSystem->read($this->path);
272
273			$newLines = array();
274			$sectionExists = false;
275			$inSection = false;
276			foreach ($oldLines as $oldLine) {
277			if ($this->isBeginOfSection($oldLine)) {
278			$inSection = true;
279			}
280			if (!$inSection) {
281			$newLines[] = $oldLine;
282			}
283			if ($this->isEndOfSection($oldLine)) {
284			$newLines = array_merge(
285			$newLines,
286			array('# BEGIN ' . self::$sectionLabel),
287			$lines,
288			array('# END ' . self::$sectionLabel)
289			);
290
291			$sectionExists = true;
292			$inSection = false;
293			}
294			}
295
296			if ($inSection && !$sectionExists) {
297			throw new FileException('Missing END marker in Htaccess file.');
298			}
299
300			if (!$sectionExists) {
301			$newLines = array_merge(
302			$oldLines,
303			array('# BEGIN ' . self::$sectionLabel),
304			$lines,
305			array('# END ' . self::$sectionLabel)
306			);
307			}
308
309			$this->fileSystem->write($this->path, $newLines);
310			}
311
312			/**
313			* Check whether line is the begin of the section.
314			*
315			* @param $line
316			*
317			* @return bool
318			*/
319			private function isBeginOfSection($line)
320			{
321			return strpos($line, '# BEGIN ' . self::$sectionLabel) === 0;
322			}
323
324			/**
325			* Check whether line is the end of the section.
326			*
327			* @param $line
328			*
329			* @return bool
330			*/
331			private function isEndOfSection($line)
332			{
333			return strpos($line, '# END ' . self::$sectionLabel) === 0;
334			}
335			}
336

jpkleemans / htaccess-firewall

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HtaccessFirewall::readLinesWithPrefix() B

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