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]{2,4}|museum|travel)'); 31 32/** 33 * Prepare mailfrom replacement patterns 34 * 35 * @author Andreas Gohr <andi@splitbrain.org> 36 */ 37function mail_setup(){ 38 global $conf; 39 global $USERINFO; 40 41 $replace = array(); 42 43 if(!empty($USERINFO['mail'])){ 44 $replace['@MAIL@'] = $USERINFO['mail']; 45 }else{ 46 $host = @parse_url(DOKU_URL,PHP_URL_HOST); 47 if(!$host) $host = 'example.com'; 48 $replace['@MAIL@'] = 'noreply@'.$host; 49 } 50 51 if(!empty($_SERVER['REMOTE_USER'])){ 52 $replace['@USER@'] = $_SERVER['REMOTE_USER']; 53 }else{ 54 $replace['@USER@'] = 'noreply'; 55 } 56 57 if(!empty($USERINFO['name'])){ 58 $replace['@NAME@'] = $USERINFO['name']; 59 }else{ 60 $replace['@NAME@'] = ''; 61 } 62 63 $conf['mailfrom'] = str_replace(array_keys($replace), 64 array_values($replace), 65 $conf['mailfrom']); 66} 67 68/** 69 * UTF-8 autoencoding replacement for PHPs mail function 70 * 71 * Email address fields (To, From, Cc, Bcc can contain a textpart and an address 72 * like this: 'Andreas Gohr <andi@splitbrain.org>' - the text part is encoded 73 * automatically. You can seperate receivers by commas. 74 * 75 * @param string $to Receiver of the mail (multiple seperated by commas) 76 * @param string $subject Mailsubject 77 * @param string $body Messagebody 78 * @param string $from Sender address 79 * @param string $cc CarbonCopy receiver (multiple seperated by commas) 80 * @param string $bcc BlindCarbonCopy receiver (multiple seperated by commas) 81 * @param string $headers Additional Headers (seperated by MAILHEADER_EOL 82 * @param string $params Additonal Sendmail params (passed to mail()) 83 * 84 * @author Andreas Gohr <andi@splitbrain.org> 85 * @see mail() 86 */ 87function mail_send($to, $subject, $body, $from='', $cc='', $bcc='', $headers=null, $params=null){ 88 89 $message = compact('to','subject','body','from','cc','bcc','headers','params'); 90 return trigger_event('MAIL_MESSAGE_SEND',$message,'_mail_send_action'); 91} 92 93function _mail_send_action($data) { 94 95 // retrieve parameters from event data, $to, $subject, $body, $from, $cc, $bcc, $headers, $params 96 $to = $data['to']; 97 $subject = $data['subject']; 98 $body = $data['body']; 99 100 // add robustness in case plugin removes any of these optional values 101 $from = isset($data['from']) ? $data['from'] : ''; 102 $cc = isset($data['cc']) ? $data['cc'] : ''; 103 $bcc = isset($data['bcc']) ? $data['bcc'] : ''; 104 $headers = isset($data['headers']) ? $data['headers'] : null; 105 $params = isset($data['params']) ? $data['params'] : null; 106 107 // end additional code to support event ... original mail_send() code from here 108 109 if(defined('MAILHEADER_ASCIIONLY')){ 110 $subject = utf8_deaccent($subject); 111 $subject = utf8_strip($subject); 112 } 113 114 if(!utf8_isASCII($subject)) { 115 $subject = '=?UTF-8?Q?'.mail_quotedprintable_encode($subject,0).'?='; 116 // Spaces must be encoded according to rfc2047. Use the "_" shorthand 117 $subject = preg_replace('/ /', '_', $subject); 118 } 119 120 $header = ''; 121 122 // No named recipients for To: in Windows (see FS#652) 123 $usenames = (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') ? false : true; 124 125 $to = mail_encode_address($to,'',$usenames); 126 $header .= mail_encode_address($from,'From'); 127 $header .= mail_encode_address($cc,'Cc'); 128 $header .= mail_encode_address($bcc,'Bcc'); 129 $header .= 'MIME-Version: 1.0'.MAILHEADER_EOL; 130 $header .= 'Content-Type: text/plain; charset=UTF-8'.MAILHEADER_EOL; 131 $header .= 'Content-Transfer-Encoding: quoted-printable'.MAILHEADER_EOL; 132 $header .= $headers; 133 $header = trim($header); 134 135 $body = mail_quotedprintable_encode($body); 136 137 if($params == null){ 138 return @mail($to,$subject,$body,$header); 139 }else{ 140 return @mail($to,$subject,$body,$header,$params); 141 } 142} 143 144/** 145 * Encodes an email address header 146 * 147 * Unicode characters will be deaccented and encoded 148 * quoted_printable for headers. 149 * Addresses may not contain Non-ASCII data! 150 * 151 * Example: 152 * mail_encode_address("föö <foo@bar.com>, me@somewhere.com","TBcc"); 153 * 154 * @param string $string Multiple adresses separated by commas 155 * @param string $header Name of the header (To,Bcc,Cc,...) 156 * @param boolean $names Allow named Recipients? 157 */ 158function mail_encode_address($string,$header='',$names=true){ 159 $headers = ''; 160 $parts = explode(',',$string); 161 foreach ($parts as $part){ 162 $part = trim($part); 163 164 // parse address 165 if(preg_match('#(.*?)<(.*?)>#',$part,$matches)){ 166 $text = trim($matches[1]); 167 $addr = $matches[2]; 168 }else{ 169 $addr = $part; 170 } 171 172 // skip empty ones 173 if(empty($addr)){ 174 continue; 175 } 176 177 // FIXME: is there a way to encode the localpart of a emailaddress? 178 if(!utf8_isASCII($addr)){ 179 msg(htmlspecialchars("E-Mail address <$addr> is not ASCII"),-1); 180 continue; 181 } 182 183 if(!mail_isvalid($addr)){ 184 msg(htmlspecialchars("E-Mail address <$addr> is not valid"),-1); 185 continue; 186 } 187 188 // text was given 189 if(!empty($text) && $names){ 190 // add address quotes 191 $addr = "<$addr>"; 192 193 if(defined('MAILHEADER_ASCIIONLY')){ 194 $text = utf8_deaccent($text); 195 $text = utf8_strip($text); 196 } 197 198 if(!utf8_isASCII($text)){ 199 $text = '=?UTF-8?Q?'.mail_quotedprintable_encode($text,0).'?='; 200 } 201 }else{ 202 $text = ''; 203 } 204 205 // add to header comma seperated 206 if($headers != ''){ 207 $headers .= ','; 208 if($header) $headers .= MAILHEADER_EOL.' '; // avoid overlong mail headers 209 } 210 $headers .= $text.' '.$addr; 211 } 212 213 if(empty($headers)) return null; 214 215 //if headername was given add it and close correctly 216 if($header) $headers = $header.': '.$headers.MAILHEADER_EOL; 217 218 return $headers; 219} 220 221/** 222 * Check if a given mail address is valid 223 * 224 * @param string $email the address to check 225 * @return bool true if address is valid 226 */ 227function mail_isvalid($email){ 228 $validator = new EmailAddressValidator; 229 $validator->allowLocalAddresses = true; 230 return $validator->check_email_address($email); 231} 232 233/** 234 * Quoted printable encoding 235 * 236 * @author umu <umuAThrz.tu-chemnitz.de> 237 * @link http://www.php.net/manual/en/function.imap-8bit.php#61216 238 */ 239function mail_quotedprintable_encode($sText,$maxlen=74,$bEmulate_imap_8bit=true) { 240 // split text into lines 241 $aLines= preg_split("/(?:\r\n|\r|\n)/", $sText); 242 $cnt = count($aLines); 243 244 for ($i=0;$i<$cnt;$i++) { 245 $sLine =& $aLines[$i]; 246 if (strlen($sLine)===0) continue; // do nothing, if empty 247 248 $sRegExp = '/[^\x09\x20\x21-\x3C\x3E-\x7E]/e'; 249 250 // imap_8bit encodes x09 everywhere, not only at lineends, 251 // for EBCDIC safeness encode !"#$@[\]^`{|}~, 252 // for complete safeness encode every character :) 253 if ($bEmulate_imap_8bit) 254 $sRegExp = '/[^\x20\x21-\x3C\x3E-\x7E]/e'; 255 256 $sReplmt = 'sprintf( "=%02X", ord ( "$0" ) ) ;'; 257 $sLine = preg_replace( $sRegExp, $sReplmt, $sLine ); 258 259 // encode x09,x20 at lineends 260 { 261 $iLength = strlen($sLine); 262 $iLastChar = ord($sLine{$iLength-1}); 263 264 // !!!!!!!! 265 // imap_8_bit does not encode x20 at the very end of a text, 266 // here is, where I don't agree with imap_8_bit, 267 // please correct me, if I'm wrong, 268 // or comment next line for RFC2045 conformance, if you like 269 if (!($bEmulate_imap_8bit && ($i==count($aLines)-1))){ 270 if (($iLastChar==0x09)||($iLastChar==0x20)) { 271 $sLine{$iLength-1}='='; 272 $sLine .= ($iLastChar==0x09)?'09':'20'; 273 } 274 } 275 } // imap_8bit encodes x20 before chr(13), too 276 // although IMHO not requested by RFC2045, why not do it safer :) 277 // and why not encode any x20 around chr(10) or chr(13) 278 if ($bEmulate_imap_8bit) { 279 $sLine=str_replace(' =0D','=20=0D',$sLine); 280 //$sLine=str_replace(' =0A','=20=0A',$sLine); 281 //$sLine=str_replace('=0D ','=0D=20',$sLine); 282 //$sLine=str_replace('=0A ','=0A=20',$sLine); 283 } 284 285 // finally split into softlines no longer than $maxlen chars, 286 // for even more safeness one could encode x09,x20 287 // at the very first character of the line 288 // and after soft linebreaks, as well, 289 // but this wouldn't be caught by such an easy RegExp 290 if($maxlen){ 291 preg_match_all( '/.{1,'.($maxlen - 2).'}([^=]{0,2})?/', $sLine, $aMatch ); 292 $sLine = implode( '=' . MAILHEADER_EOL, $aMatch[0] ); // add soft crlf's 293 } 294 } 295 296 // join lines into text 297 return implode(MAILHEADER_EOL,$aLines); 298} 299 300