1<?php 2/** 3 * Mail functions 4 * 5 * @license GPL 2 (http://www.gnu.org/licenses/gpl.html) 6 * @author Andreas Gohr <andi@splitbrain.org> 7 */ 8 9if(!defined('DOKU_INC')) die('meh.'); 10 11// end of line for mail lines - RFC822 says CRLF but postfix (and other MTAs?) 12// think different 13if(!defined('MAILHEADER_EOL')) define('MAILHEADER_EOL',"\n"); 14#define('MAILHEADER_ASCIIONLY',1); 15 16/** 17 * Patterns for use in email detection and validation 18 * 19 * NOTE: there is an unquoted '/' in RFC2822_ATEXT, it must remain unquoted to be used in the parser 20 * the pattern uses non-capturing groups as captured groups aren't allowed in the parser 21 * select pattern delimiters with care! 22 * 23 * May not be completly RFC conform! 24 * @link http://www.faqs.org/rfcs/rfc2822.html (paras 3.4.1 & 3.2.4) 25 * 26 * @author Chris Smith <chris@jalakai.co.uk> 27 * Check if a given mail address is valid 28 */ 29if (!defined('RFC2822_ATEXT')) define('RFC2822_ATEXT',"0-9a-zA-Z!#$%&'*+/=?^_`{|}~-"); 30if (!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})'); 31 32/** 33 * Prepare mailfrom replacement patterns 34 * 35 * Also prepares a mailfromnobody config that contains an autoconstructed address 36 * if the mailfrom one is userdependent and this might not be wanted (subscriptions) 37 * 38 * @author Andreas Gohr <andi@splitbrain.org> 39 */ 40function mail_setup(){ 41 global $conf; 42 global $USERINFO; 43 /** @var Input $INPUT */ 44 global $INPUT; 45 46 // auto constructed address 47 $host = @parse_url(DOKU_URL,PHP_URL_HOST); 48 if(!$host) $host = 'example.com'; 49 $noreply = 'noreply@'.$host; 50 51 $replace = array(); 52 if(!empty($USERINFO['mail'])){ 53 $replace['@MAIL@'] = $USERINFO['mail']; 54 }else{ 55 $replace['@MAIL@'] = $noreply; 56 } 57 58 // use 'noreply' if no user 59 $replace['@USER@'] = $INPUT->server->str('REMOTE_USER', 'noreply', true); 60 61 if(!empty($USERINFO['name'])){ 62 $replace['@NAME@'] = $USERINFO['name']; 63 }else{ 64 $replace['@NAME@'] = ''; 65 } 66 67 // apply replacements 68 $from = str_replace(array_keys($replace), 69 array_values($replace), 70 $conf['mailfrom']); 71 72 // any replacements done? set different mailfromnone 73 if($from != $conf['mailfrom']){ 74 $conf['mailfromnobody'] = $noreply; 75 }else{ 76 $conf['mailfromnobody'] = $from; 77 } 78 $conf['mailfrom'] = $from; 79} 80 81/** 82 * UTF-8 autoencoding replacement for PHPs mail function 83 * 84 * Email address fields (To, From, Cc, Bcc can contain a textpart and an address 85 * like this: 'Andreas Gohr <andi@splitbrain.org>' - the text part is encoded 86 * automatically. You can seperate receivers by commas. 87 * 88 * @param string $to Receiver of the mail (multiple seperated by commas) 89 * @param string $subject Mailsubject 90 * @param string $body Messagebody 91 * @param string $from Sender address 92 * @param string $cc CarbonCopy receiver (multiple seperated by commas) 93 * @param string $bcc BlindCarbonCopy receiver (multiple seperated by commas) 94 * @param string $headers Additional Headers (seperated by MAILHEADER_EOL 95 * @param string $params Additonal Sendmail params (passed to mail()) 96 * 97 * @author Andreas Gohr <andi@splitbrain.org> 98 * @see mail() 99 * 100 * @deprecated User the Mailer:: class instead 101 */ 102function mail_send($to, $subject, $body, $from='', $cc='', $bcc='', $headers=null, $params=null){ 103 dbg_deprecated('class Mailer::'); 104 $message = compact('to','subject','body','from','cc','bcc','headers','params'); 105 return trigger_event('MAIL_MESSAGE_SEND',$message,'_mail_send_action'); 106} 107 108/** 109 * @param $data 110 * @return bool 111 * 112 * @deprecated User the Mailer:: class instead 113 */ 114function _mail_send_action($data) { 115 dbg_deprecated('class Mailer::'); 116 // retrieve parameters from event data, $to, $subject, $body, $from, $cc, $bcc, $headers, $params 117 $to = $data['to']; 118 $subject = $data['subject']; 119 $body = $data['body']; 120 121 // add robustness in case plugin removes any of these optional values 122 $from = isset($data['from']) ? $data['from'] : ''; 123 $cc = isset($data['cc']) ? $data['cc'] : ''; 124 $bcc = isset($data['bcc']) ? $data['bcc'] : ''; 125 $headers = isset($data['headers']) ? $data['headers'] : null; 126 $params = isset($data['params']) ? $data['params'] : null; 127 128 // discard mail request if no recipients are available 129 if(trim($to) === '' && trim($cc) === '' && trim($bcc) === '') return false; 130 131 // end additional code to support event ... original mail_send() code from here 132 133 if(defined('MAILHEADER_ASCIIONLY')){ 134 $subject = utf8_deaccent($subject); 135 $subject = utf8_strip($subject); 136 } 137 138 if(!utf8_isASCII($subject)) { 139 $enc_subj = '=?UTF-8?Q?'.mail_quotedprintable_encode($subject,0).'?='; 140 // Spaces must be encoded according to rfc2047. Use the "_" shorthand 141 $enc_subj = preg_replace('/ /', '_', $enc_subj); 142 143 // quoted printable has length restriction, use base64 if needed 144 if(strlen($subject) > 74){ 145 $enc_subj = '=?UTF-8?B?'.base64_encode($subject).'?='; 146 } 147 148 $subject = $enc_subj; 149 } 150 151 $header = ''; 152 153 // No named recipients for To: in Windows (see FS#652) 154 $usenames = (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') ? false : true; 155 156 $to = mail_encode_address($to,'',$usenames); 157 $header .= mail_encode_address($from,'From'); 158 $header .= mail_encode_address($cc,'Cc'); 159 $header .= mail_encode_address($bcc,'Bcc'); 160 $header .= 'MIME-Version: 1.0'.MAILHEADER_EOL; 161 $header .= 'Content-Type: text/plain; charset=UTF-8'.MAILHEADER_EOL; 162 $header .= 'Content-Transfer-Encoding: quoted-printable'.MAILHEADER_EOL; 163 $header .= $headers; 164 $header = trim($header); 165 166 $body = mail_quotedprintable_encode($body); 167 168 if($params == null){ 169 return @mail($to,$subject,$body,$header); 170 }else{ 171 return @mail($to,$subject,$body,$header,$params); 172 } 173} 174 175/** 176 * Encodes an email address header 177 * 178 * Unicode characters will be deaccented and encoded 179 * quoted_printable for headers. 180 * Addresses may not contain Non-ASCII data! 181 * 182 * Example: 183 * mail_encode_address("föö <foo@bar.com>, me@somewhere.com","TBcc"); 184 * 185 * @param string $string Multiple adresses separated by commas 186 * @param string $header Name of the header (To,Bcc,Cc,...) 187 * @param boolean $names Allow named Recipients? 188 * 189 * @deprecated User the Mailer:: class instead 190 */ 191function mail_encode_address($string,$header='',$names=true){ 192 dbg_deprecated('class Mailer::'); 193 $headers = ''; 194 $parts = explode(',',$string); 195 foreach ($parts as $part){ 196 $part = trim($part); 197 198 // parse address 199 if(preg_match('#(.*?)<(.*?)>#',$part,$matches)){ 200 $text = trim($matches[1]); 201 $addr = $matches[2]; 202 }else{ 203 $addr = $part; 204 } 205 206 // skip empty ones 207 if(empty($addr)){ 208 continue; 209 } 210 211 // FIXME: is there a way to encode the localpart of a emailaddress? 212 if(!utf8_isASCII($addr)){ 213 msg(htmlspecialchars("E-Mail address <$addr> is not ASCII"),-1); 214 continue; 215 } 216 217 if(!mail_isvalid($addr)){ 218 msg(htmlspecialchars("E-Mail address <$addr> is not valid"),-1); 219 continue; 220 } 221 222 // text was given 223 if(!empty($text) && $names){ 224 // add address quotes 225 $addr = "<$addr>"; 226 227 if(defined('MAILHEADER_ASCIIONLY')){ 228 $text = utf8_deaccent($text); 229 $text = utf8_strip($text); 230 } 231 232 if(!utf8_isASCII($text)){ 233 // put the quotes outside as in =?UTF-8?Q?"Elan Ruusam=C3=A4e"?= vs "=?UTF-8?Q?Elan Ruusam=C3=A4e?=" 234 if (preg_match('/^"(.+)"$/', $text, $matches)) { 235 $text = '"=?UTF-8?Q?'.mail_quotedprintable_encode($matches[1], 0).'?="'; 236 } else { 237 $text = '=?UTF-8?Q?'.mail_quotedprintable_encode($text, 0).'?='; 238 } 239 // additionally the space character should be encoded as =20 (or each 240 // word QP encoded separately). 241 // however this is needed only in mail headers, not globally in mail_quotedprintable_encode(). 242 $text = str_replace(" ", "=20", $text); 243 } 244 }else{ 245 $text = ''; 246 } 247 248 // add to header comma seperated 249 if($headers != ''){ 250 $headers .= ','; 251 if($header) $headers .= MAILHEADER_EOL.' '; // avoid overlong mail headers 252 } 253 $headers .= $text.' '.$addr; 254 } 255 256 if(empty($headers)) return null; 257 258 //if headername was given add it and close correctly 259 if($header) $headers = $header.': '.$headers.MAILHEADER_EOL; 260 261 return $headers; 262} 263 264/** 265 * Check if a given mail address is valid 266 * 267 * @param string $email the address to check 268 * @return bool true if address is valid 269 */ 270function mail_isvalid($email){ 271 $validator = new EmailAddressValidator; 272 $validator->allowLocalAddresses = true; 273 return $validator->check_email_address($email); 274} 275 276/** 277 * Quoted printable encoding 278 * 279 * @author umu <umuAThrz.tu-chemnitz.de> 280 * @link http://www.php.net/manual/en/function.imap-8bit.php#61216 281 */ 282function mail_quotedprintable_encode($sText,$maxlen=74,$bEmulate_imap_8bit=true) { 283 // split text into lines 284 $aLines= preg_split("/(?:\r\n|\r|\n)/", $sText); 285 $cnt = count($aLines); 286 287 for ($i=0;$i<$cnt;$i++) { 288 $sLine =& $aLines[$i]; 289 if (strlen($sLine)===0) continue; // do nothing, if empty 290 291 $sRegExp = '/[^\x09\x20\x21-\x3C\x3E-\x7E]/e'; 292 293 // imap_8bit encodes x09 everywhere, not only at lineends, 294 // for EBCDIC safeness encode !"#$@[\]^`{|}~, 295 // for complete safeness encode every character :) 296 if ($bEmulate_imap_8bit) 297 $sRegExp = '/[^\x20\x21-\x3C\x3E-\x7E]/'; 298 299 $sLine = preg_replace_callback( $sRegExp, 'mail_quotedprintable_encode_callback', $sLine ); 300 301 // encode x09,x20 at lineends 302 { 303 $iLength = strlen($sLine); 304 $iLastChar = ord($sLine{$iLength-1}); 305 306 // !!!!!!!! 307 // imap_8_bit does not encode x20 at the very end of a text, 308 // here is, where I don't agree with imap_8_bit, 309 // please correct me, if I'm wrong, 310 // or comment next line for RFC2045 conformance, if you like 311 if (!($bEmulate_imap_8bit && ($i==count($aLines)-1))){ 312 if (($iLastChar==0x09)||($iLastChar==0x20)) { 313 $sLine{$iLength-1}='='; 314 $sLine .= ($iLastChar==0x09)?'09':'20'; 315 } 316 } 317 } // imap_8bit encodes x20 before chr(13), too 318 // although IMHO not requested by RFC2045, why not do it safer :) 319 // and why not encode any x20 around chr(10) or chr(13) 320 if ($bEmulate_imap_8bit) { 321 $sLine=str_replace(' =0D','=20=0D',$sLine); 322 //$sLine=str_replace(' =0A','=20=0A',$sLine); 323 //$sLine=str_replace('=0D ','=0D=20',$sLine); 324 //$sLine=str_replace('=0A ','=0A=20',$sLine); 325 } 326 327 // finally split into softlines no longer than $maxlen chars, 328 // for even more safeness one could encode x09,x20 329 // at the very first character of the line 330 // and after soft linebreaks, as well, 331 // but this wouldn't be caught by such an easy RegExp 332 if($maxlen){ 333 preg_match_all( '/.{1,'.($maxlen - 2).'}([^=]{0,2})?/', $sLine, $aMatch ); 334 $sLine = implode( '=' . MAILHEADER_EOL, $aMatch[0] ); // add soft crlf's 335 } 336 } 337 338 // join lines into text 339 return implode(MAILHEADER_EOL,$aLines); 340} 341 342function mail_quotedprintable_encode_callback($matches){ 343 return sprintf( "=%02X", ord ( $matches[0] ) ) ; 344} 345