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content/inc/mail.php
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166
content/inc/mail.php
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<?php
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/**
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* Mail functions
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*
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* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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// end of line for mail lines - RFC822 says CRLF but postfix (and other MTAs?)
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// think different
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if(!defined('MAILHEADER_EOL')) define('MAILHEADER_EOL',"\n");
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#define('MAILHEADER_ASCIIONLY',1);
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/**
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* Patterns for use in email detection and validation
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*
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* NOTE: there is an unquoted '/' in RFC2822_ATEXT, it must remain unquoted to be used in the parser
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* the pattern uses non-capturing groups as captured groups aren't allowed in the parser
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* select pattern delimiters with care!
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*
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* May not be completly RFC conform!
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* @link http://www.faqs.org/rfcs/rfc2822.html (paras 3.4.1 & 3.2.4)
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*
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* @author Chris Smith <chris@jalakai.co.uk>
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* Check if a given mail address is valid
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*/
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if (!defined('RFC2822_ATEXT')) define('RFC2822_ATEXT',"0-9a-zA-Z!#$%&'*+/=?^_`{|}~-");
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if (!defined('PREG_PATTERN_VALID_EMAIL')) define(
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'PREG_PATTERN_VALID_EMAIL',
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'['.RFC2822_ATEXT.']+(?:\.['.RFC2822_ATEXT.']+)*@(?i:[0-9a-z][0-9a-z-]*\.)+(?i:[a-z]{2,63})'
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);
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/**
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* Prepare mailfrom replacement patterns
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*
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* Also prepares a mailfromnobody config that contains an autoconstructed address
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* if the mailfrom one is userdependent and this might not be wanted (subscriptions)
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function mail_setup(){
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global $conf;
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global $USERINFO;
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/** @var Input $INPUT */
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global $INPUT;
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// auto constructed address
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$host = @parse_url(DOKU_URL,PHP_URL_HOST);
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if(!$host) $host = 'example.com';
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$noreply = 'noreply@'.$host;
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$replace = array();
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if(!empty($USERINFO['mail'])){
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$replace['@MAIL@'] = $USERINFO['mail'];
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}else{
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$replace['@MAIL@'] = $noreply;
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}
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// use 'noreply' if no user
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$replace['@USER@'] = $INPUT->server->str('REMOTE_USER', 'noreply', true);
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if(!empty($USERINFO['name'])){
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$replace['@NAME@'] = $USERINFO['name'];
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}else{
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$replace['@NAME@'] = '';
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}
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// apply replacements
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$from = str_replace(array_keys($replace),
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array_values($replace),
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$conf['mailfrom']);
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// any replacements done? set different mailfromnone
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if($from != $conf['mailfrom']){
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$conf['mailfromnobody'] = $noreply;
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}else{
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$conf['mailfromnobody'] = $from;
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}
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$conf['mailfrom'] = $from;
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}
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/**
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* Check if a given mail address is valid
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*
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* @param string $email the address to check
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* @return bool true if address is valid
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*/
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function mail_isvalid($email) {
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return EmailAddressValidator::checkEmailAddress($email, true);
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}
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/**
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* Quoted printable encoding
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*
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* @author umu <umuAThrz.tu-chemnitz.de>
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* @link http://php.net/manual/en/function.imap-8bit.php#61216
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*
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* @param string $sText
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* @param int $maxlen
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* @param bool $bEmulate_imap_8bit
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*
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* @return string
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*/
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function mail_quotedprintable_encode($sText,$maxlen=74,$bEmulate_imap_8bit=true) {
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// split text into lines
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$aLines= preg_split("/(?:\r\n|\r|\n)/", $sText);
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$cnt = count($aLines);
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for ($i=0;$i<$cnt;$i++) {
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$sLine =& $aLines[$i];
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if (strlen($sLine)===0) continue; // do nothing, if empty
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$sRegExp = '/[^\x09\x20\x21-\x3C\x3E-\x7E]/e';
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// imap_8bit encodes x09 everywhere, not only at lineends,
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// for EBCDIC safeness encode !"#$@[\]^`{|}~,
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// for complete safeness encode every character :)
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if ($bEmulate_imap_8bit)
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$sRegExp = '/[^\x20\x21-\x3C\x3E-\x7E]/';
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$sLine = preg_replace_callback( $sRegExp, 'mail_quotedprintable_encode_callback', $sLine );
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// encode x09,x20 at lineends
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{
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$iLength = strlen($sLine);
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$iLastChar = ord($sLine[$iLength-1]);
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// !!!!!!!!
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// imap_8_bit does not encode x20 at the very end of a text,
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// here is, where I don't agree with imap_8_bit,
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// please correct me, if I'm wrong,
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// or comment next line for RFC2045 conformance, if you like
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if (!($bEmulate_imap_8bit && ($i==count($aLines)-1))){
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if (($iLastChar==0x09)||($iLastChar==0x20)) {
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$sLine[$iLength-1]='=';
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$sLine .= ($iLastChar==0x09)?'09':'20';
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}
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}
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} // imap_8bit encodes x20 before chr(13), too
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// although IMHO not requested by RFC2045, why not do it safer :)
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// and why not encode any x20 around chr(10) or chr(13)
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if ($bEmulate_imap_8bit) {
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$sLine=str_replace(' =0D','=20=0D',$sLine);
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//$sLine=str_replace(' =0A','=20=0A',$sLine);
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//$sLine=str_replace('=0D ','=0D=20',$sLine);
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//$sLine=str_replace('=0A ','=0A=20',$sLine);
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}
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// finally split into softlines no longer than $maxlen chars,
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// for even more safeness one could encode x09,x20
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// at the very first character of the line
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// and after soft linebreaks, as well,
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// but this wouldn't be caught by such an easy RegExp
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if($maxlen){
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preg_match_all( '/.{1,'.($maxlen - 2).'}([^=]{0,2})?/', $sLine, $aMatch );
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$sLine = implode( '=' . MAILHEADER_EOL, $aMatch[0] ); // add soft crlf's
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}
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}
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// join lines into text
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return implode(MAILHEADER_EOL,$aLines);
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}
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function mail_quotedprintable_encode_callback($matches){
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return sprintf( "=%02X", ord ( $matches[0] ) ) ;
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}
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