47 lines
1.1 KiB
PHP
47 lines
1.1 KiB
PHP
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<?php
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/**
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* Validates tel (for phone numbers).
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*
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* The relevant specifications for this protocol are RFC 3966 and RFC 5341,
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* but this class takes a much simpler approach: we normalize phone
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* numbers so that they only include (possibly) a leading plus,
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* and then any number of digits and x'es.
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*/
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class HTMLPurifier_URIScheme_tel extends HTMLPurifier_URIScheme
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{
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/**
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* @type bool
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*/
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public $browsable = false;
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/**
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* @type bool
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*/
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public $may_omit_host = true;
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/**
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* @param HTMLPurifier_URI $uri
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* @param HTMLPurifier_Config $config
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* @param HTMLPurifier_Context $context
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* @return bool
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*/
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public function doValidate(&$uri, $config, $context)
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{
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$uri->userinfo = null;
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$uri->host = null;
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$uri->port = null;
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// Delete all non-numeric characters, non-x characters
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// from phone number, EXCEPT for a leading plus sign.
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$uri->path = preg_replace('/(?!^\+)[^\dx]/', '',
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// Normalize e(x)tension to lower-case
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str_replace('X', 'x', $uri->path));
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return true;
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}
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}
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// vim: et sw=4 sts=4
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