| | |
| | | <?php |
| | | |
| | | /* |
| | | /** |
| | | +-----------------------------------------------------------------------+ |
| | | | This file is part of the Roundcube Webmail client | |
| | | | Copyright (C) 2009-2012, The Roundcube Dev Team | |
| | |
| | | */ |
| | | class rcube_string_replacer |
| | | { |
| | | public static $pattern = '/##str_replacement\[([0-9]+)\]##/'; |
| | | public static $pattern = '/##str_replacement_(\d+)##/'; |
| | | public $mailto_pattern; |
| | | public $link_pattern; |
| | | private $values = array(); |
| | | private $options = array(); |
| | | public $linkref_index; |
| | | public $linkref_pattern; |
| | | |
| | | protected $values = array(); |
| | | protected $options = array(); |
| | | protected $linkrefs = array(); |
| | | protected $urls = array(); |
| | | |
| | | |
| | | function __construct($options = array()) |
| | |
| | | // Support unicode/punycode in top-level domain part |
| | | $utf_domain = '[^?&@"\'\\/()<>\s\r\t\n]+\\.?([^\\x00-\\x2f\\x3b-\\x40\\x5b-\\x60\\x7b-\\x7f]{2,}|xn--[a-zA-Z0-9]{2,})'; |
| | | $url1 = '.:;,'; |
| | | $url2 = 'a-zA-Z0-9%=#$@+?!&\\/_~\\[\\]\\(\\){}\*-'; |
| | | $url2 = 'a-zA-Z0-9%=#$@+?|!&\\/_~\\[\\]\\(\\){}\*\x80-\xFE-'; |
| | | |
| | | $this->link_pattern = "/([\w]+:\/\/|\W[Ww][Ww][Ww]\.|^[Ww][Ww][Ww]\.)($utf_domain([$url1]?[$url2]+)*)/"; |
| | | $this->mailto_pattern = "/(" |
| | | $this->options = $options; |
| | | $this->linkref_index = '/\[([^\]#]+)\](:?\s*##str_replacement_(\d+)##)/'; |
| | | $this->linkref_pattern = '/\[([^\]#]+)\]/'; |
| | | $this->link_pattern = "/([\w]+:\/\/|\W[Ww][Ww][Ww]\.|^[Ww][Ww][Ww]\.)($utf_domain([$url1]*[$url2]+)*)/"; |
| | | $this->mailto_pattern = "/(" |
| | | ."[-\w!\#\$%&\'*+~\/^`|{}=]+(?:\.[-\w!\#\$%&\'*+~\/^`|{}=]+)*" // local-part |
| | | ."@$utf_domain" // domain-part |
| | | ."(\?[$url1$url2]+)?" // e.g. ?subject=test... |
| | | .")/"; |
| | | |
| | | $this->options = $options; |
| | | } |
| | | |
| | | /** |
| | | * Add a string to the internal list |
| | | * |
| | | * @param string String value |
| | | * @param string String value |
| | | * |
| | | * @return int Index of value for retrieval |
| | | */ |
| | | public function add($str) |
| | |
| | | */ |
| | | public function get_replacement($i) |
| | | { |
| | | return '##str_replacement['.$i.']##'; |
| | | return '##str_replacement_' . $i . '##'; |
| | | } |
| | | |
| | | /** |
| | |
| | | $attrib['href'] = $url_prefix . $url; |
| | | |
| | | $i = $this->add(html::a($attrib, rcube::Q($url)) . $suffix); |
| | | $this->urls[$i] = $attrib['href']; |
| | | } |
| | | |
| | | // Return valid link for recognized schemes, otherwise |
| | |
| | | } |
| | | |
| | | /** |
| | | * Callback to add an entry to the link index |
| | | */ |
| | | public function linkref_addindex($matches) |
| | | { |
| | | $key = $matches[1]; |
| | | $this->linkrefs[$key] = $this->urls[$matches[3]]; |
| | | |
| | | return $this->get_replacement($this->add('['.$key.']')) . $matches[2]; |
| | | } |
| | | |
| | | /** |
| | | * Callback to replace link references with real links |
| | | */ |
| | | public function linkref_callback($matches) |
| | | { |
| | | $i = 0; |
| | | if ($url = $this->linkrefs[$matches[1]]) { |
| | | $attrib = (array)$this->options['link_attribs']; |
| | | $attrib['href'] = $url; |
| | | $i = $this->add(html::a($attrib, rcube::Q($matches[1]))); |
| | | } |
| | | |
| | | return $i > 0 ? '['.$this->get_replacement($i).']' : $matches[0]; |
| | | } |
| | | |
| | | /** |
| | | * Callback function used to build mailto: links around e-mail strings |
| | | * |
| | | * @param array Matches result from preg_replace_callback |
| | | * |
| | | * @return int Index of saved string value |
| | | */ |
| | | public function mailto_callback($matches) |
| | |
| | | // search for patterns like links and e-mail addresses |
| | | $str = preg_replace_callback($this->link_pattern, array($this, 'link_callback'), $str); |
| | | $str = preg_replace_callback($this->mailto_pattern, array($this, 'mailto_callback'), $str); |
| | | // resolve link references |
| | | $str = preg_replace_callback($this->linkref_index, array($this, 'linkref_addindex'), $str); |
| | | $str = preg_replace_callback($this->linkref_pattern, array($this, 'linkref_callback'), $str); |
| | | |
| | | return $str; |
| | | } |