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