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| <?php |
| |
| // ======================================================================== |
| |
| // SOURCE: SIGMA 3.0 ANTISPAM CONFIG |
| |
| define('CFG_MAKE_MAIL_ADDRESSES_CLICKABLE', true); |
| define('CFG_CORRET_MISSING_MAILTO', true); |
| define('CFG_DEFAULT_CLASS', 'mail-addr'); |
| |
| // ======================================================================== |
| |
| // SOURCE: SIGMA 3.0 ANTISPAM FILTER |
| |
| function secure_email_triv($email) |
| { |
| if (!function_exists('alas_js_crypt')) |
| { |
| function alas_js_crypt($text) |
| { |
| $tmp = ''; |
| for ($i=0; $i<strlen($text); $i++) |
| { |
| $tmp .= 'document.write("&#'.ord(substr($text, $i, 1)).';");'; |
| } |
| return $tmp; |
| } |
| } |
| |
| $aus = ''; |
| if ($email != '') |
| { |
| $aus .= '<script language="JavaScript" type="text/javascript"><!--'."\n"; |
| $aus .= alas_js_crypt($email); |
| $aus .= '// --></script>'; |
| } |
| return $aus; |
| } |
| |
| function getAddrSpec() { |
| // Ref: http://www.iamcal.com/publish/articles/php/parsing_email/ |
| |
| $qtext = '[^\\x0d\\x22\\x5c\\x80-\\xff]'; |
| $dtext = '[^\\x0d\\x5b-\\x5d\\x80-\\xff]'; |
| $atom = '[^\\x00-\\x20\\x22\\x28\\x29\\x2c\\x2e\\x3a-\\x3c\\x3e\\x40\\x5b-\\x5d\\x7f-\\xff]+'; |
| $quoted_pair = '\\x5c[\\x00-\\x7f]'; |
| $domain_literal = "\\x5b($dtext|$quoted_pair)*\\x5d"; |
| $quoted_string = "\\x22($qtext|$quoted_pair)*\\x22"; |
| $domain_ref = $atom; |
| $sub_domain = "($domain_ref|$domain_literal)"; |
| $word = "($atom|$quoted_string)"; |
| $domain = "$sub_domain(\\x2e$sub_domain)*"; |
| $local_part = "$word(\\x2e$word)*"; |
| $addr_spec = "$local_part\\x40$domain"; |
| |
| return $addr_spec; |
| } |
| |
| function is_valid_email_address($email) { |
| // TODO: Hier lieber einen korrekten Mailvalidator verwenden (C.Sayers Lösung)? |
| |
| $ary = explode('?', $email); |
| $email = $ary[0]; |
| |
| $addr_spec = getAddrSpec(); |
| return preg_match("!^$addr_spec$!", $email); |
| } |
| |
| class MailLinkProtector extends UrlParseIterator { |
| var $correct_missing_mailto; |
| |
| protected function link_callback($complete, $pre, $post, $urltype, $bracket, $url, $linktext) { |
| if (beginsWithI($url, 'mailto:')) { |
| // Link ist eine Mailadresse |
| $mailaddr = remove_beginning_i($url, 'mailto:'); |
| return secure_email($mailaddr, $linktext, is_valid_email_address($linktext), CFG_DEFAULT_CLASS); |
| } else if (($this->correct_missing_mailto) && (is_valid_email_address($url))) { |
| // Hier hat jemand "mailto:" vergessen. Wir korrigieren das mal... |
| $mailaddr = $url; |
| return secure_email($mailaddr, $linktext, is_valid_email_address($linktext), CFG_DEFAULT_CLASS); |
| } else { |
| // Normaler Link |
| return $complete; |
| } |
| } |
| } |
| |
| function link_cb_2($a) { |
| $mailaddr = $a[1]; // Letztes |
| |
| if (CFG_MAKE_MAIL_ADDRESSES_CLICKABLE) { |
| return secure_email($mailaddr, $mailaddr, true, CFG_DEFAULT_CLASS); |
| } else { |
| return secure_email_triv($mailaddr); |
| } |
| } |
| |
| function protect_mail_address_urls($content, $correct_missing_mailto = true) { |
| $t = new MailLinkProtector; |
| $t->correct_missing_mailto = $correct_missing_mailto; |
| return $t->process($content); |
| } |
| |
| function auto_secure_mail_addresses($content) { |
| // Step 1: Parse links and make them secure |
| |
| $content = protect_mail_address_urls($content, CFG_CORRET_MISSING_MAILTO); |
| |
| // Step 2: Find all further mail addresses, make then clickable and prevent spam bots |
| |
| $addr_spec = getAddrSpec(); |
| |
| // This fixes an error if the file is unix converted... |
| // The error occoured at server4.configcenter.info: |
| // [Fri Mar 26 20:23:24 2010] [error] [client 87.165.172.145] (104)Connection reset by peer: FastCGI: comm with server "/home/www/web66/html/cgi-bin/php-fcgi-starter" aborted: read failed |
| // [Fri Mar 26 20:23:24 2010] [error] [client 87.165.172.145] FastCGI: incomplete headers (0 bytes) received from server "/home/www/web66/html/cgi-bin/php-fcgi-starter" |
| $content = str_replace("\n", "\r\n", $content); |
| |
| // Diese Zeichen ausschließen, damit z.B. Satzzeichen am Ende einer E-Mail-Adresse, Anführungszeichen oder Klammern nicht |
| // als Teil der Adresse angesehen werden. Die Liste ist länger als $addr_spec eigentlich benötigt (z.B. schließt $addr_spec |
| // einen Punkt am Ende automatisch aus). Aber sicher ist sicher. |
| $exclude_mail_chars_beginning = '\^°!"§$%&/()=\?´`}\]\[{\+*~\'#-_\.:,;'; |
| $exclude_mail_chars_ending = $exclude_mail_chars_beginning; |
| |
| $content = preg_replace_callback("@(?![$exclude_mail_chars_beginning])($addr_spec)(?<![$exclude_mail_chars_ending])@sm", 'link_cb_2', $content); |
| |
| // Output |
| |
| return $content; |
| } |
| |
| // ======================================================================== |
| |
| // SOURCE: SIGMA 3.0 _sigma.php |
| |
| class UrlParseIterator { |
| var $use_original_bracket_at_link = false; |
| var $use_original_bracket_at_css = false; |
| var $use_original_bracket_at_other = false; |
| |
| protected function process_url($url) { |
| // Overwrite this method in a derivate! |
| return $url; |
| } |
| |
| // LINK |
| |
| private function link_style_regex() { |
| return "@(<a\s[^>]*(href)\s*=\s*)(?(?=[\"'])(([\"'])([^>]*)\\4)|()([^ >]*?))([^>]*>)(.*)</a>@ismU"; |
| } |
| |
| protected function link_callback($complete, $pre, $post, $urltype, $bracket, $url, $linktext) { |
| $url = $this->process_url($url); |
| |
| return $pre.$bracket.$url.$bracket.$post.$linktext.'</a>'; |
| } |
| |
| private function link_first_callback($c) { |
| $complete = $c[0]; |
| |
| $pre = $c[1]; |
| $post = $c[8]; |
| |
| $urltype = $c[2]; // = href |
| |
| if ($this->use_original_bracket_at_link) { |
| $bracket = $c[4]; |
| } else { |
| $bracket = '"'; |
| } |
| |
| $url = $c[5].$c[7]; // Either [5] OR [7] is filled, so I simply concat them. |
| |
| $linktext = $c[9]; |
| |
| return $this->link_callback($complete, $pre, $post, $urltype, $bracket, $url, $linktext); |
| } |
| |
| // CSS |
| |
| private function css_style_regex() { |
| return "/url\(\s*(?(?=[\"'])(([\"'])([^>]*)\\2)|([^\)]*?))\)/isUm"; |
| } |
| |
| protected function css_callback($complete, $bracket, $url) { |
| $url = $this->process_url($url); |
| |
| return 'url('.$bracket.$url.$bracket.')'; |
| } |
| |
| private function css_first_callback($c) { |
| $complete = $c[0]; |
| |
| if ($this->use_original_bracket_at_css) { |
| $bracket = $c[2]; |
| } else { |
| $bracket = "'"; |
| } |
| |
| if (!isset($c[4])) $c[4] = ''; |
| $url = $c[3].$c[4]; // Either [3] OR [4] is filled, so I simply concat them. |
| |
| return $this->css_callback($complete, $bracket, $url); |
| } |
| |
| // Other (does not include a-href, but base-href etc.) |
| |
| private function other_style_regex() { |
| return "/((<(?!a\s)[^><]*)(href)|src|background|code)\s*=\s*(?(?=[\"'])(([\"'])([^>]*)\\5)|([^ >]*?))/isUm"; |
| } |
| |
| protected function other_callback($complete, $bracket, $type, $url) { |
| $url = $this->process_url($url); |
| |
| return $type.'='.$bracket.$url.$bracket; |
| } |
| |
| private function other_first_callback($c) { |
| // Aufgrund des regex ist bei einem href $c[0] nicht href="..." sondern <base ... href="..." |
| // Wir verdecken diesen zusätzlichen Anfang, leiten ihn an die abstrakte callback-Funktion weiter |
| // und fügen später beim zurückliefern diesen Präfix $pre wieder hinzu. |
| $pre = $c[2]; |
| |
| $complete = remove_beginning($c[0], $pre); |
| |
| if ($c[3] == '') { |
| $type = $c[1]; |
| } else { |
| $type = $c[3]; |
| } |
| |
| if ($this->use_original_bracket_at_other) { |
| $bracket = $c[5]; |
| } else { |
| $bracket = '"'; |
| } |
| |
| if (!isset($c[7])) $c[7] = ''; |
| $url = $c[6].$c[7]; // Either [6] OR [7] is filled, so I simply concat them. |
| |
| return $pre.$this->other_callback($complete, $bracket, $type, $url); |
| } |
| |
| // Processing functions |
| |
| private function process_links($content) { |
| $r = preg_replace_callback($this->link_style_regex(), array(&$this, 'link_first_callback'), $content); |
| if ($r == null) return $content; // z.B. bei doppeltem ALAS-Processing! |
| return $r; |
| } |
| |
| private function process_other($content) { |
| $r = preg_replace_callback($this->other_style_regex(), array(&$this, 'other_first_callback'), $content); |
| if ($r == null) return $content; |
| return $r; |
| } |
| |
| private function process_css($content) { |
| $r = preg_replace_callback($this->css_style_regex(), array(&$this, 'css_first_callback'), $content); |
| if ($r == null) return $content; |
| return $r; |
| } |
| |
| public function process($content) { |
| $content = $this->process_links($content); |
| $content = $this->process_other($content); |
| $content = $this->process_css($content); |
| |
| return $content; |
| } |
| } |
| |
| // ======================================================================== |
| |
| // SOURCE: VIATHINKSOFT ANTI SPAM |
| |
| include '../v3.inc.php'; |
| |
| // ======================================================================== |
| |
| // SOURCE: SIGMA 3.0 _sigma.php |
| |
| function remove_beginning($content, $beginning) { |
| if (beginsWith($content, $beginning)) { |
| return substr($content, strlen($beginning), strlen($content)-strlen($beginning)); |
| } else { |
| return $content; |
| } |
| } |
| |
| function beginsWithI($content, $beginning) { |
| return beginsWith(strtolower($content), strtolower($beginning)); |
| } |
| |
| function beginsWith($content, $beginning) { |
| // return substr($content, 0, strlen($beginning)) == $beginning; |
| return (strncmp($content, $beginning, strlen($beginning)) == 0); |
| } |
| |
| function remove_beginning_i($content, $beginning) { |
| if (beginsWithI($content, $beginning)) { |
| return substr($content, strlen($beginning), strlen($content)-strlen($beginning)); |
| } else { |
| return $content; |
| } |
| } |
| |
| // ======================================================================== |
| |
| // USAGE: |
| // $content = auto_secure_mail_addresses($content); |
| |
| // ======================================================================== |