functions/imap_messages.php

   1 <?
   2    /**
   3     **  imap_messages.php
   4     **
   5     **  This implements functions that manipulate messages
   6     **/
   7
   8    /******************************************************************************
   9     **  Copies specified messages to specified folder
  10     ******************************************************************************/
  11    function sqimap_messages_copy ($imap_stream, $start, $end, $mailbox) {
  12       fputs ($imap_stream, "a001 COPY $start:$end \"$mailbox\"\n");
  13       $read = sqimap_read_data ($imap_stream, "a001", true, $response, $message);
  14    }
  15
  16    /******************************************************************************
  17     **  Deletes specified messages and moves them to trash if possible
  18     ******************************************************************************/
  19    function sqimap_messages_delete ($imap_stream, $start, $end, $mailbox) {
  20       global $move_to_trash, $trash_folder, $auto_expunge;
  21
  22       if (($move_to_trash == true) && (sqimap_mailbox_exists($imap_stream, $trash_folder))) {
  23          sqimap_messages_copy ($imap_stream, $start, $end, $trash_folder);
  24          sqimap_messages_flag ($imap_stream, $start, $end, "Deleted");
  25       } else {
  26          sqimap_messages_flag ($imap_stream, $start, $end, "Deleted");
  27       }
  28       if ($auto_expunge == true)
  29          sqimap_mailbox_expunge ($imap_stream, $mailbox);
  30    }
  31
  32    /******************************************************************************
  33     **  Sets the specified messages with specified flag
  34     ******************************************************************************/
  35    function sqimap_messages_flag ($imap_stream, $start, $end, $flag) {
  36       fputs ($imap_stream, "a001 STORE $start:$end +FLAGS (\\$flag)\n");
  37       $read = sqimap_read_data ($imap_stream, "a001", true, $response, $message);
  38    }
  39
  40    /******************************************************************************
  41     **  Returns some general header information -- FROM, DATE, and SUBJECT
  42     ******************************************************************************/
  43    function sqimap_get_small_header ($imap_stream, $id, &$from, &$subject, &$date) {
  44       fputs ($imap_stream, "a001 FETCH $id:$id RFC822.HEADER.LINES (From Subject Date)\n");
  45       $read = sqimap_read_data ($imap_stream, "a001", true, $response, $message);
  46
  47       for ($i = 0; $i < count($read); $i++) {
  48          if (substr($read[$i], 0, 5) == "From:") {
  49             $from = sqimap_find_displayable_name(substr($read[$i], 5));
  50          } else if (substr($read[$i], 0, 5) == "Date:") {
  51             $date = substr($read[$i], 5);
  52          } else if (substr($read[$i], 0, 8) == "Subject:") {
  53             $subject = htmlspecialchars(substr($read[$i], 8));
  54             if (strlen(trim($subject)) == 0)
  55                $subject = "(no subject)";
  56          }
  57       }
  58    }
  59
  60    /******************************************************************************
  61     **  Returns the flags for the specified messages
  62     ******************************************************************************/
  63    function sqimap_get_flags () {
  64    }
  65
  66    /******************************************************************************
  67     **  Returns a message array with all the information about a message.  See
  68     **  the documentation folder for more information about this array.
  69     ******************************************************************************/
  70    function sqimap_get_message ($imap_stream, $id, $mailbox) {
  71       $message["INFO"]["ID"] = $id;
  72       $message["INFO"]["MAILBOX"] = $mailbox;
  73       $message["HEADER"] = sqimap_get_message_header($imap_stream, $id);
  74       $message["ENTITIES"] = sqimap_get_message_body($imap_stream, $message["HEADER"]["BOUNDARY"], $id, $message["HEADER"]["TYPE0"], $message["HEADER"]["TYPE1"]);
  75       return $message;
  76    }
  77
  78    /******************************************************************************
  79     **  Wrapper function that reformats the header information.
  80     ******************************************************************************/
  81    function sqimap_get_message_header ($imap_stream, $id) {
  82       fputs ($imap_stream, "a001 FETCH $id:$id RFC822.HEADER\n");
  83       $read = sqimap_read_data ($imap_stream, "a001", true, $response, $message);
  84
  85       return sqimap_get_header($imap_stream, $read);
  86    }
  87
  88    /******************************************************************************
  89     **  Wrapper function that returns entity headers for use by decodeMime
  90     ******************************************************************************/
  91    function sqimap_get_entity_header ($imap_stream, &$read, &$type0, &$type1, &$bound, &$encoding, &$charset, &$filename) {
  92       $header = sqimap_get_header($imap_stream, $read);
  93       $type0 = $header["TYPE0"];
  94       $type1 = $header["TYPE1"];
  95       $bound = $header["BOUNDARY"];
  96       $encoding = $header["ENCODING"];
  97       $charset = $header["CHARSET"];
  98       $filename = $header["FILENAME"];
  99    }
 100
 101    /******************************************************************************
 102     **  Queries the IMAP server and gets all header information.
 103     ******************************************************************************/
 104    function sqimap_get_header ($imap_stream, $read) {
 105       $i = 0;
 106       while ($i < count($read)) {
 107          if (substr($read[$i], 0, 17) == "MIME-Version: 1.0") {
 108             $header["MIME"] = true;
 109             $i++;
 110          }
 111
 112          /** ENCODING TYPE **/
 113          else if (substr(strtolower($read[$i]), 0, 26) == "content-transfer-encoding:") {
 114             $header["ENCODING"] = strtolower(trim(substr($read[$i], 26)));
 115             $i++;
 116          }
 117
 118          /** CONTENT-TYPE **/
 119          else if (substr($read[$i], 0, 13) == "Content-Type:") {
 120             $cont = strtolower(trim(substr($read[$i], 13)));
 121             if (strpos($cont, ";"))
 122                $cont = substr($cont, 0, strpos($cont, ";"));
 123
 124             if (strpos($cont, "/")) {
 125                $header["TYPE0"] = substr($cont, 0, strpos($cont, "/"));
 126                $header["TYPE1"] = substr($cont, strpos($cont, "/")+1);
 127             } else {
 128                $header["TYPE0"] = $cont;
 129             }
 130
 131             $line = $read[$i];
 132             $i++;
 133             while ( (substr(substr($read[$i], 0, strpos($read[$i], " ")), -1) != ":") && (trim($read[$i]) != "") && (trim($read[$i]) != ")")) {
 134                str_replace("\n", "", $line);
 135                str_replace("\n", "", $read[$i]);
 136                $line = "$line $read[$i]";
 137                $i++;
 138             }
 139
 140             /** Detect the boundary of a multipart message **/
 141             if (strpos(strtolower(trim($line)), "boundary=")) {
 142                $pos = strpos($line, "boundary=") + 9;
 143                $bound = trim($line);
 144                if (strpos($line, " ", $pos) > 0) {
 145                   $bound = substr($bound, $pos, strpos($line, " ", $pos));
 146                } else {
 147                   $bound = substr($bound, $pos);
 148                }
 149                $bound = str_replace("\"", "", $bound);
 150                $header["BOUNDARY"] = $bound;
 151             }
 152
 153             /** Detect the charset **/
 154             if (strpos(strtolower(trim($line)), "charset=")) {
 155                $pos = strpos($line, "charset=") + 8;
 156                $charset = trim($line);
 157                if (strpos($line, " ", $pos) > 0) {
 158                   $charset = substr($charset, $pos, strpos($line, " ", $pos));
 159                } else {
 160                   $charset = substr($charset, $pos);
 161                }
 162                $charset = str_replace("\"", "", $charset);
 163                $header["CHARSET"] = $charset;
 164             } else {
 165                $header["CHARSET"] = "us-ascii";
 166             }
 167
 168             /** Detects filename if any **/
 169             if (strpos(strtolower(trim($line)), "name=")) {
 170                $pos = strpos($line, "name=") + 5;
 171                $name = trim($line);
 172                if (strpos($line, " ", $pos) > 0) {
 173                   $name = substr($name, $pos, strpos($line, " ", $pos));
 174                } else {
 175                   $name = substr($name, $pos);
 176                }
 177                $name = str_replace("\"", "", $name);
 178                $header["FILENAME"] = $name;
 179             }
 180          }
 181
 182          /** REPLY-TO **/
 183          else if (strtolower(substr($read[$i], 0, 9)) == "reply-to:") {
 184             $header["REPLYTO"] = trim(substr($read[$i], 9, strlen($read[$i])));
 185             $i++;
 186          }
 187
 188          /** FROM **/
 189          else if (strtolower(substr($read[$i], 0, 5)) == "from:") {
 190             $header["FROM"] = trim(substr($read[$i], 5, strlen($read[$i]) - 6));
 191             if ($header["REPLYTO"] == "")
 192                $header["REPLYTO"] = $header["FROM"];
 193             $i++;
 194          }
 195          /** DATE **/
 196          else if (strtolower(substr($read[$i], 0, 5)) == "date:") {
 197             $d = substr($read[$i], 5);
 198             $d = trim($d);
 199             $d = ereg_replace("  ", " ", $d);
 200             $d = explode(" ", $d);
 201             $header["DATE"] = getTimeStamp($d);
 202             $i++;
 203          }
 204          /** SUBJECT **/
 205          else if (strtolower(substr($read[$i], 0, 8)) == "subject:") {
 206             $header["SUBJECT"] = trim(substr($read[$i], 8, strlen($read[$i]) - 9));
 207             if (strlen(Chop($header["SUBJECT"])) == 0)
 208                $header["SUBJECT"] = "(no subject)";
 209             $i++;
 210          }
 211          /** CC **/
 212          else if (strtolower(substr($read[$i], 0, 3)) == "cc:") {
 213             $pos = 0;
 214             $header["CC"][$pos] = trim(substr($read[$i], 4));
 215             $i++;
 216             while ((substr($read[$i], 0, 1) == " ") && (trim($read[$i]) != "")) {
 217                $pos++;
 218                $header["CC"][$pos] = trim($read[$i]);
 219                $i++;
 220             }
 221          }
 222          /** TO **/
 223          else if (strtolower(substr($read[$i], 0, 3)) == "to:") {
 224             $pos = 0;
 225             $header["TO"][$pos] = trim(substr($read[$i], 4));
 226             $i++;
 227             while ((substr($read[$i], 0, 1) == " ")  && (trim($read[$i]) != "")){
 228                $pos++;
 229                $header["TO"][$pos] = trim($read[$i]);
 230                $i++;
 231             }
 232          }
 233
 234          /** ERROR CORRECTION **/
 235          else if (substr($read[$i], 0, 1) == ")") {
 236             if ($header["SUBJECT"] == "")
 237                 $header["SUBJECT"] = "(no subject)";
 238
 239             if ($header["FROM"] == "")
 240                 $header["FROM"] = "(unknown sender)";
 241
 242             if ($header["DATE"] == "")
 243                 $header["DATE"] = time();
 244             $i++;
 245          }
 246          else {
 247             $i++;
 248          }
 249       }
 250       return $header;
 251    }
 252
 253    /******************************************************************************
 254     **  Returns the body of a message.
 255     ******************************************************************************/
 256    function sqimap_get_message_body ($imap_stream, $bound, $id, $type0, $type1) {
 257       fputs ($imap_stream, "a001 FETCH $id:$id BODY[TEXT]\n");
 258       $read = sqimap_read_data ($imap_stream, "a001", true, $response, $message);
 259
 260       $i = 0;
 261       $j = 0;
 262       while ($i < count($read)) {
 263          if ( ($i != 0) && ($i != count($read)-1) && ($i != count($read)) ) {
 264             $bodytmp[$j] = $read[$i];
 265             $j++;
 266          }
 267          $i++;
 268       }
 269       $body = $bodytmp;
 270       return decodeMime($body, $bound, $type0, $type1);
 271    }
 272 ?>