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by Sebastian

created 2020-01-04 18:24 UTC

URLInfo_Parser::parse() A

↳ Parent: URLInfo_Parser

Complexity

Conditions	1
Paths	1

Size

Total Lines	14
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
eloc	4
c	1
b	0
f	0
nc	1
nop	0
dl	0
loc	14
rs	10

<?php
/**
 * File containing the {@see AppUtils\URLInfo_Parser} class.
 *
 * @package Application Utils
 * @subpackage URLInfo
 * @see AppUtils\URLInfo_Parser
 */

declare(strict_types=1);

namespace AppUtils;

/**
 * Handles the URL parsing.
 *
 * @package Application Utils
 * @subpackage URLInfo
 * @author Sebastian Mordziol <[email protected]>
 */
class URLInfo_Parser
{
   /**
    * @var string
    */
    protected $url;
    
   /**
    * @var bool
    */
    protected $isValid = false;
    
   /**
    * @var array
    */
    protected $info;
    
   /**
    * @var array|NULL
    */
    protected $error;
    
    /**
     * @var array
     */
    protected $knownSchemes = array(
        'ftp',
        'http',
        'https',
        'mailto',
        'tel',
        'data',
        'file'
    );
    
    public function __construct(string $url)
    {
        $this->url = $url;
        
        $this->parse();
        
        if(!$this->detectType()) {
            $this->validate();
        }
    }

    public function getInfo() : array
    {
        return $this->info;
    }
    
    protected function parse()
    {
        // fix for parsing unicode characters in URLs:
        // this is dependent on the machine's locale,
        // so to ensure this works we temporarily change
        // it to the always available US UTF8 locale.
        $prev = setlocale(LC_CTYPE, 'en_US.UTF-8');
        
        $this->info = parse_url($this->url);
        
        // restore the previous locale
        setlocale(LC_CTYPE, $prev);
        
        $this->filterParsed();
    }
    
    protected function detectType() : bool
    {
        $types = array(
            'email',
            'fragmentLink',
            'phoneLink'
        );
        
        foreach($types as $type)
        {
            $method = 'detectType_'.$type;
            
            if($this->$method() === true) 
            {
                $this->isValid = true;
                return true;
            }
        }
        
        return false;
    }
    
    protected function validate()
    {
        $validations = array(
            'schemeIsSet',
            'schemeIsKnown',
            'hostIsPresent'
        );
        
        foreach($validations as $validation) 
        {
            $method = 'validate_'.$validation;
            
            if($this->$method() !== true) {
                return;
            }
        }
        
        $this->isValid = true;
    }
    
    protected function validate_hostIsPresent() : bool
    {
        // every link needs a host. This case can happen for ex, if
        // the link starts with a typo with only one slash, like:
        // "http:/hostname"
        if(isset($this->info['host'])) {
            return true;
        }
        
        $this->setError(
            URLInfo::ERROR_MISSING_HOST,
            t('Cannot determine the link\'s host name.') . ' ' .
            t('This usually happens when there\'s a typo somewhere.')
        );

        return false;
    }
    
    protected function validate_schemeIsSet() : bool
    {
        if(isset($this->info['scheme'])) {
            return true;
        }
        
        // no scheme found: it may be an email address without the mailto:
        // It can't be a variable, since without the scheme it would already
        // have been recognized as a vaiable only link.
        $this->setError(
            URLInfo::ERROR_MISSING_SCHEME,
            t('Cannot determine the link\'s scheme, e.g. %1$s.', 'http')
        );
        
        return false;
    }
    
    protected function validate_schemeIsKnown() : bool
    {
        if(in_array($this->info['scheme'], $this->knownSchemes)) {
            return true;
        }
        
        $this->setError(
            URLInfo::ERROR_INVALID_SCHEME,
            t('The scheme %1$s is not supported for links.', $this->info['scheme']) . ' ' .
            t('Valid schemes are: %1$s.', implode(', ', $this->knownSchemes))
        );

        return false;
    }

   /**
    * Goes through all information in the parse_url result
    * array, and attempts to fix any user errors in formatting
    * that can be recovered from, mostly regarding stray spaces.
    */
    protected function filterParsed()
    {
        foreach($this->info as $key => $val)
        {
            if(is_string($val)) {
                $this->info[$key] = trim($val);
            }
        }
        
        $this->info['params'] = array();
        $this->info['type'] = URLInfo::TYPE_URL;
        
        if(isset($this->info['host'])) {
            $this->info['host'] = str_replace(' ', '', $this->info['host']);
        }
        
        if(isset($this->info['path'])) {
            $this->info['path'] = str_replace(' ', '', $this->info['path']);
        }
        
        if(isset($this->info['query']) && !empty($this->info['query']))
        {
            $this->info['params'] = \AppUtils\ConvertHelper::parseQueryString($this->info['query']);
            ksort($this->info['params']);
        }
    }
    
    protected function detectType_email() : bool
    {
        if(isset($this->info['scheme']) && $this->info['scheme'] == 'mailto') {
            $this->info['type'] = URLInfo::TYPE_EMAIL;
            return true;
        }
        
        if(isset($this->info['path']) && preg_match(\AppUtils\RegexHelper::REGEX_EMAIL, $this->info['path']))
        {
            $this->info['scheme'] = 'mailto';
            $this->info['type'] = URLInfo::TYPE_EMAIL;
            return true;
        }
        
        return false;
    }
    
    protected function detectType_fragmentLink() : bool
    {
        if(isset($this->info['fragment']) && !isset($this->info['scheme'])) {
            $this->info['type'] = URLInfo::TYPE_FRAGMENT;
            return true;
        }
        
        return false;
    }
    
    protected function detectType_phoneLink() : bool
    {
        if(isset($this->info['scheme']) && $this->info['scheme'] == 'tel') {
            $this->info['type'] = URLInfo::TYPE_PHONE;
            return true;
        }
        
        return false;
    }

    protected function setError(int $code, string $message)
    {
        $this->isValid = false;
        
        $this->error = array(
            'code' => $code,
            'message' => $message
        );
    }
    
    public function isValid() : bool
    {
        return $this->isValid;
    }

    public function getErrorMessage() : string
    {
        if(isset($this->error)) {
            return $this->error['message'];
        }
        
        return '';
    }
    
    public function getErrorCode() : int
    {
        if(isset($this->error)) {
            return $this->error['code'];
        }
        
        return -1;
    }
}


1			<?php
2			/**
3			* File containing the {@see AppUtils\URLInfo_Parser} class.
4			*
5			* @package Application Utils
6			* @subpackage URLInfo
7			* @see AppUtils\URLInfo_Parser
8			*/
9
10			declare(strict_types=1);
11
12			namespace AppUtils;
13
14			/**
15			* Handles the URL parsing.
16			*
17			* @package Application Utils
18			* @subpackage URLInfo
19			* @author Sebastian Mordziol <[email protected]>
20			*/
21			class URLInfo_Parser
22			{
23			/**
24			* @var string
25			*/
26			protected $url;
27
28			/**
29			* @var bool
30			*/
31			protected $isValid = false;
32
33			/**
34			* @var array
35			*/
36			protected $info;
37
38			/**
39			* @var array\|NULL
40			*/
41			protected $error;
42
43			/**
44			* @var array
45			*/
46			protected $knownSchemes = array(
47			'ftp',
48			'http',
49			'https',
50			'mailto',
51			'tel',
52			'data',
53			'file'
54			);
55
56			public function __construct(string $url)
57			{
58			$this->url = $url;
59
60			$this->parse();
61
62			if(!$this->detectType()) {
63			$this->validate();
64			}
65			}
66
67			public function getInfo() : array
68			{
69			return $this->info;
70			}
71
72			protected function parse()
73			{
74			// fix for parsing unicode characters in URLs:
75			// this is dependent on the machine's locale,
76			// so to ensure this works we temporarily change
77			// it to the always available US UTF8 locale.
78			$prev = setlocale(LC_CTYPE, 'en_US.UTF-8');
79
80			$this->info = parse_url($this->url);
81
82			// restore the previous locale
83			setlocale(LC_CTYPE, $prev);
84
85			$this->filterParsed();
86			}
87
88			protected function detectType() : bool
89			{
90			$types = array(
91			'email',
92			'fragmentLink',
93			'phoneLink'
94			);
95
96			foreach($types as $type)
97			{
98			$method = 'detectType_'.$type;
99
100			if($this->$method() === true)
101			{
102			$this->isValid = true;
103			return true;
104			}
105			}
106
107			return false;
108			}
109
110			protected function validate()
111			{
112			$validations = array(
113			'schemeIsSet',
114			'schemeIsKnown',
115			'hostIsPresent'
116			);
117
118			foreach($validations as $validation)
119			{
120			$method = 'validate_'.$validation;
121
122			if($this->$method() !== true) {
123			return;
124			}
125			}
126
127			$this->isValid = true;
128			}
129
130			protected function validate_hostIsPresent() : bool
131			{
132			// every link needs a host. This case can happen for ex, if
133			// the link starts with a typo with only one slash, like:
134			// "http:/hostname"
135			if(isset($this->info['host'])) {
136			return true;
137			}
138
139			$this->setError(
140			URLInfo::ERROR_MISSING_HOST,
141			t('Cannot determine the link\'s host name.') . ' ' .
142			t('This usually happens when there\'s a typo somewhere.')
143			);
144
145			return false;
146			}
147
148			protected function validate_schemeIsSet() : bool
149			{
150			if(isset($this->info['scheme'])) {
151			return true;
152			}
153
154			// no scheme found: it may be an email address without the mailto:
155			// It can't be a variable, since without the scheme it would already
156			// have been recognized as a vaiable only link.
157			$this->setError(
158			URLInfo::ERROR_MISSING_SCHEME,
159			t('Cannot determine the link\'s scheme, e.g. %1$s.', 'http')
160			);
161
162			return false;
163			}
164
165			protected function validate_schemeIsKnown() : bool
166			{
167			if(in_array($this->info['scheme'], $this->knownSchemes)) {
168			return true;
169			}
170
171			$this->setError(
172			URLInfo::ERROR_INVALID_SCHEME,
173			t('The scheme %1$s is not supported for links.', $this->info['scheme']) . ' ' .
174			t('Valid schemes are: %1$s.', implode(', ', $this->knownSchemes))
175			);
176
177			return false;
178			}
179
180			/**
181			* Goes through all information in the parse_url result
182			* array, and attempts to fix any user errors in formatting
183			* that can be recovered from, mostly regarding stray spaces.
184			*/
185			protected function filterParsed()
186			{
187			foreach($this->info as $key => $val)
188			{
189			if(is_string($val)) {
190			$this->info[$key] = trim($val);
191			}
192			}
193
194			$this->info['params'] = array();
195			$this->info['type'] = URLInfo::TYPE_URL;
196
197			if(isset($this->info['host'])) {
198			$this->info['host'] = str_replace(' ', '', $this->info['host']);
199			}
200
201			if(isset($this->info['path'])) {
202			$this->info['path'] = str_replace(' ', '', $this->info['path']);
203			}
204
205			if(isset($this->info['query']) && !empty($this->info['query']))
206			{
207			$this->info['params'] = \AppUtils\ConvertHelper::parseQueryString($this->info['query']);
208			ksort($this->info['params']);
209			}
210			}
211
212			protected function detectType_email() : bool
213			{
214			if(isset($this->info['scheme']) && $this->info['scheme'] == 'mailto') {
215			$this->info['type'] = URLInfo::TYPE_EMAIL;
216			return true;
217			}
218
219			if(isset($this->info['path']) && preg_match(\AppUtils\RegexHelper::REGEX_EMAIL, $this->info['path']))
220			{
221			$this->info['scheme'] = 'mailto';
222			$this->info['type'] = URLInfo::TYPE_EMAIL;
223			return true;
224			}
225
226			return false;
227			}
228
229			protected function detectType_fragmentLink() : bool
230			{
231			if(isset($this->info['fragment']) && !isset($this->info['scheme'])) {
232			$this->info['type'] = URLInfo::TYPE_FRAGMENT;
233			return true;
234			}
235
236			return false;
237			}
238
239			protected function detectType_phoneLink() : bool
240			{
241			if(isset($this->info['scheme']) && $this->info['scheme'] == 'tel') {
242			$this->info['type'] = URLInfo::TYPE_PHONE;
243			return true;
244			}
245
246			return false;
247			}
248
249			protected function setError(int $code, string $message)
250			{
251			$this->isValid = false;
252
253			$this->error = array(
254			'code' => $code,
255			'message' => $message
256			);
257			}
258
259			public function isValid() : bool
260			{
261			return $this->isValid;
262			}
263
264			public function getErrorMessage() : string
265			{
266			if(isset($this->error)) {
267			return $this->error['message'];
268			}
269
270			return '';
271			}
272
273			public function getErrorCode() : int
274			{
275			if(isset($this->error)) {
276			return $this->error['code'];
277			}
278
279			return -1;
280			}
281			}
282

Mistralys / application-utils

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URLInfo_Parser::parse() A

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