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\"\r\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, $end, "Deleted");
  27       }
  28    }
  29
  30    /******************************************************************************
  31     **  Sets the specified messages with specified flag
  32     ******************************************************************************/
  33    function sqimap_messages_flag ($imap_stream, $start, $end, $flag) {
  34       fputs ($imap_stream, "a001 STORE $start:$end +FLAGS (\\$flag)\r\n");
  35       $read = sqimap_read_data ($imap_stream, "a001", true, $response, $message);
  36    }
  37
  38    /******************************************************************************
  39     **  Returns some general header information -- FROM, DATE, and SUBJECT
  40     ******************************************************************************/
  41    function sqimap_get_small_header ($imap_stream, $id, &$from, &$subject, &$date) {
  42       fputs ($imap_stream, "a001 FETCH $id:$id BODY[HEADER.FIELDS (From Subject Date)]\r\n");
  43       $read = sqimap_read_data ($imap_stream, "a001", true, $response, $message);
  44
  45       for ($i = 0; $i < count($read); $i++) {
  46          if (strtolower(substr($read[$i], 0, 5)) == "from:") {
  47             $from = sqimap_find_displayable_name(substr($read[$i], 5));
  48          } else if (strtolower(substr($read[$i], 0, 5)) == "date:") {
  49             $date = substr($read[$i], 5);
  50          } else if (strtolower(substr($read[$i], 0, 8)) == "subject:") {
  51             $subject = htmlspecialchars(substr($read[$i], 8));
  52             if (strlen(trim($subject)) == 0)
  53                $subject = _("(no subject)");
  54          }
  55       }
  56    }
  57
  58    /******************************************************************************
  59     **  Returns the flags for the specified messages
  60     ******************************************************************************/
  61    function sqimap_get_flags ($imap_stream, $start, $end) {
  62       fputs ($imap_stream, "a001 FETCH $start:$end FLAGS\r\n");
  63       $read = sqimap_read_data ($imap_stream, "a001", true, $response, $message);
  64       $i = 0;
  65       while ($i < count($read)) {
  66          if (strpos($read[$i], "FLAGS")) {
  67             $tmp = ereg_replace("\(", "", $read[$i]);
  68             $tmp = ereg_replace("\)", "", $tmp);
  69             $tmp = str_replace("\\", "", $tmp);
  70             $tmp = substr($tmp, strpos($tmp, "FLAGS")+6, strlen($tmp));
  71             $tmp = trim($tmp);
  72             $flags[$i] = explode(" ", $tmp);
  73          } else {
  74             $flags[$i][0] = "None";
  75          }
  76          $i++;
  77       }
  78       return $flags;
  79    }
  80
  81    /******************************************************************************
  82     **  Returns a message array with all the information about a message.  See
  83     **  the documentation folder for more information about this array.
  84     ******************************************************************************/
  85    function sqimap_get_message ($imap_stream, $id, $mailbox) {
  86       $message["INFO"]["ID"] = $id;
  87       $message["INFO"]["MAILBOX"] = $mailbox;
  88       $message["HEADER"] = sqimap_get_message_header($imap_stream, $id);
  89       $message["ENTITIES"] = sqimap_get_message_body($imap_stream, $message["HEADER"]["BOUNDARY"], $id, $message["HEADER"]["TYPE0"], $message["HEADER"]["TYPE1"], $message["HEADER"]["ENCODING"], $message["HEADER"]["CHARSET"]);
  90       return $message;
  91    }
  92
  93    /******************************************************************************
  94     **  Wrapper function that reformats the header information.
  95     ******************************************************************************/
  96    function sqimap_get_message_header ($imap_stream, $id) {
  97       fputs ($imap_stream, "a001 FETCH $id:$id BODY[HEADER]\r\n");
  98       $read = sqimap_read_data ($imap_stream, "a001", true, $response, $message);
  99
 100       return sqimap_get_header($imap_stream, $read);
 101    }
 102
 103    /******************************************************************************
 104     **  Wrapper function that returns entity headers for use by decodeMime
 105     ******************************************************************************/
 106    function sqimap_get_entity_header ($imap_stream, &$read, &$type0, &$type1, &$bound, &$encoding, &$charset, &$filename) {
 107       $header = sqimap_get_header($imap_stream, $read);
 108       $type0 = $header["TYPE0"];
 109       $type1 = $header["TYPE1"];
 110       $bound = $header["BOUNDARY"];
 111       $encoding = $header["ENCODING"];
 112       $charset = $header["CHARSET"];
 113       $filename = $header["FILENAME"];
 114    }
 115
 116    /******************************************************************************
 117     **  Queries the IMAP server and gets all header information.
 118     ******************************************************************************/
 119    function sqimap_get_header ($imap_stream, $read) {
 120       $i = 0;
 121       // Set up some defaults
 122       $header["TYPE0"] = "text";
 123       $header["TYPE1"] = "plain";
 124       $header["CHARSET"] = "us-ascii";
 125
 126       while ($i < count($read)) {
 127          if (substr($read[$i], 0, 17) == "MIME-Version: 1.0") {
 128             $header["MIME"] = true;
 129             $i++;
 130          }
 131
 132          /** ENCODING TYPE **/
 133          else if (substr(strtolower($read[$i]), 0, 26) == "content-transfer-encoding:") {
 134             $header["ENCODING"] = strtolower(trim(substr($read[$i], 26)));
 135             $i++;
 136          }
 137
 138          /** CONTENT-TYPE **/
 139          else if (strtolower(substr($read[$i], 0, 13)) == "content-type:") {
 140             $cont = strtolower(trim(substr($read[$i], 13)));
 141             if (strpos($cont, ";"))
 142                $cont = substr($cont, 0, strpos($cont, ";"));
 143
 144
 145             if (strpos($cont, "/")) {
 146                $header["TYPE0"] = substr($cont, 0, strpos($cont, "/"));
 147                $header["TYPE1"] = substr($cont, strpos($cont, "/")+1);
 148             } else {
 149                $header["TYPE0"] = $cont;
 150             }
 151
 152
 153             $line = $read[$i];
 154             $i++;
 155             while ( (substr(substr($read[$i], 0, strpos($read[$i], " ")), -1) != ":") && (trim($read[$i]) != "") && (trim($read[$i]) != ")")) {
 156                str_replace("\n", "", $line);
 157                str_replace("\n", "", $read[$i]);
 158                $line = "$line $read[$i]";
 159                $i++;
 160             }
 161
 162             /** Detect the boundary of a multipart message **/
 163             if (strpos(strtolower(trim($line)), "boundary=")) {
 164                $pos = strpos(strtolower($line), "boundary=") + 9;
 165                $bound = trim($line);
 166                if (strpos($line, " ", $pos) > 0) {
 167                   $bound = substr($bound, $pos, strpos($line, " ", $pos));
 168                } else {
 169                   $bound = substr($bound, $pos);
 170                }
 171                $bound = str_replace("\"", "", $bound);
 172                $header["BOUNDARY"] = $bound;
 173             }
 174
 175             /** Detect the charset **/
 176             if (strpos(strtolower(trim($line)), "charset=")) {
 177                $pos = strpos($line, "charset=") + 8;
 178                $charset = trim($line);
 179                if (strpos($line, " ", $pos) > 0) {
 180                   $charset = substr($charset, $pos, strpos($line, " ", $pos));
 181                } else {
 182                   $charset = substr($charset, $pos);
 183                }
 184                $charset = str_replace("\"", "", $charset);
 185                $header["CHARSET"] = $charset;
 186             } else {
 187                $header["CHARSET"] = "us-ascii";
 188             }
 189
 190          }
 191
 192          else if (strtolower(substr($read[$i], 0, 20)) == "content-disposition:") {
 193             /** Add better dontent-disposition support **/
 194
 195             $line = $read[$i];
 196             $i++;
 197             while ( (substr(substr($read[$i], 0, strpos($read[$i], " ")), -1) != ":") && (trim($read[$i]) != "") && (trim($read[$i]) != ")")) {
 198                str_replace("\n", "", $line);
 199                str_replace("\n", "", $read[$i]);
 200                $line = "$line $read[$i]";
 201                $i++;
 202             }
 203
 204             /** Detects filename if any **/
 205             if (strpos(strtolower(trim($line)), "filename=")) {
 206                $pos = strpos($line, "filename=") + 9;
 207                $name = trim($line);
 208                if (strpos($line, " ", $pos) > 0) {
 209                   $name = substr($name, $pos, strpos($line, " ", $pos));
 210                } else {
 211                   $name = substr($name, $pos);
 212                }
 213                $name = str_replace("\"", "", $name);
 214                $header["FILENAME"] = $name;
 215             }
 216          }
 217
 218          /** REPLY-TO **/
 219          else if (strtolower(substr($read[$i], 0, 9)) == "reply-to:") {
 220             $header["REPLYTO"] = trim(substr($read[$i], 9, strlen($read[$i])));
 221             $i++;
 222          }
 223
 224          /** FROM **/
 225          else if (strtolower(substr($read[$i], 0, 5)) == "from:") {
 226             $header["FROM"] = trim(substr($read[$i], 5, strlen($read[$i]) - 6));
 227             if ($header["REPLYTO"] == "")
 228                $header["REPLYTO"] = $header["FROM"];
 229             $i++;
 230          }
 231          /** DATE **/
 232          else if (strtolower(substr($read[$i], 0, 5)) == "date:") {
 233             $d = substr($read[$i], 5);
 234             $d = trim($d);
 235             $d = ereg_replace("  ", " ", $d);
 236             $d = explode(" ", $d);
 237             $header["DATE"] = getTimeStamp($d);
 238             $i++;
 239          }
 240          /** SUBJECT **/
 241          else if (strtolower(substr($read[$i], 0, 8)) == "subject:") {
 242             $header["SUBJECT"] = trim(substr($read[$i], 8, strlen($read[$i]) - 9));
 243             if (strlen(Chop($header["SUBJECT"])) == 0)
 244                $header["SUBJECT"] = _("(no subject)");
 245             $i++;
 246          }
 247          /** CC **/
 248          else if (strtolower(substr($read[$i], 0, 3)) == "cc:") {
 249             $pos = 0;
 250             $header["CC"][$pos] = trim(substr($read[$i], 4));
 251             $i++;
 252             while ((substr($read[$i], 0, 1) == " ") && (trim($read[$i]) != "")) {
 253                $pos++;
 254                $header["CC"][$pos] = trim($read[$i]);
 255                $i++;
 256             }
 257          }
 258          /** TO **/
 259          else if (strtolower(substr($read[$i], 0, 3)) == "to:") {
 260             $pos = 0;
 261             $header["TO"][$pos] = trim(substr($read[$i], 4));
 262             $i++;
 263             while ((substr($read[$i], 0, 1) == " ")  && (trim($read[$i]) != "")){
 264                $pos++;
 265                $header["TO"][$pos] = trim($read[$i]);
 266                $i++;
 267             }
 268          }
 269          /** MESSAGE ID **/
 270          else if (strtolower(substr($read[$i], 0, 11)) == "message-id:") {
 271             $header["MESSAGE-ID"] = trim(substr($read[$i], 11));
 272             $i++;
 273          }
 274
 275
 276          /** ERROR CORRECTION **/
 277          else if (substr($read[$i], 0, 1) == ")") {
 278             if ($header["SUBJECT"] == "")
 279                 $header["SUBJECT"] = _("(no subject)");
 280
 281             if ($header["FROM"] == "")
 282                 $header["FROM"] = _("(unknown sender)");
 283
 284             if ($header["DATE"] == "")
 285                 $header["DATE"] = time();
 286             $i++;
 287          }
 288          else {
 289             $i++;
 290          }
 291       }
 292       return $header;
 293    }
 294
 295
 296    /******************************************************************************
 297     **  Returns the body of a message.
 298     ******************************************************************************/
 299    function sqimap_get_message_body ($imap_stream, $bound, $id, $type0, $type1, $encoding, $charset) {
 300       fputs ($imap_stream, "a001 FETCH $id:$id BODY[TEXT]\r\n");
 301       $read = sqimap_read_data ($imap_stream, "a001", true, $response, $message);
 302
 303       $i = 0;
 304       $j = 0;
 305       while ($i < count($read)-1) {
 306          if ( ($i != 0) ) {
 307             $bodytmp[$j] = $read[$i];
 308             $j++;
 309          }
 310          $i++;
 311       }
 312       $body = $bodytmp;
 313
 314       return decodeMime($body, $bound, $type0, $type1, $encoding, $charset);
 315    }
 316 ?>