+ $version = "1.0pre1 (cvs)";
+
+
+ function find_mailbox_name ($mailbox) {
+/*
+ $mailbox = trim($mailbox);
+ if (substr($mailbox, strlen($mailbox)-1, strlen($mailbox)) == "\"") {
+ $mailbox = substr($mailbox, 0, strlen($mailbox) - 1);
+ $pos = strrpos ($mailbox, "\"")+1;
+ $box = substr($mailbox, $pos);
+ } else {
+ $box = substr($mailbox, strrpos($mailbox, " ")+1, strlen($mailbox));
+ }
+ return $box;
+*/
+
+ if (ereg(" *\"([^\r\n\"]*)\"[ \r\n]*$", $mailbox, $regs))
+ return $regs[1];
+ ereg(" *([^ \r\n\"]*)[ \r\n]*$",$mailbox,$regs);
+ return $regs[1];
+
+ }
+
+ function replace_spaces ($string) {
+ return str_replace(" ", " ", $string);
+ }
+
+ function replace_escaped_spaces ($string) {
+ return str_replace(" ", " ", $string);
+ }
+
+ function get_location () {
+ # This determines the location to forward to relative
+ # to your server. If this doesnt work correctly for
+ # you (although it should), you can remove all this
+ # code except the last two lines, and change the header()
+ # function to look something like this, customized to
+ # the location of SquirrelMail on your server:
+ #
+ # http://www.myhost.com/squirrelmail/src/login.php
+
+ global $PHP_SELF, $SERVER_NAME, $HTTPS, $HTTP_HOST, $SERVER_PORT;
+
+ // Get the path
+ $path = substr($PHP_SELF, 0, strrpos($PHP_SELF, '/'));
+
+ // Check if this is a HTTPS or regular HTTP request
+ $proto = "http://";
+ if(isset($HTTPS) && $HTTPS == 'on' ) {
+ $proto = "https://";
+ }
+
+ // Get the hostname from the Host header or server config.
+ $host = "";
+ if (isset($HTTP_HOST) && !empty($HTTP_HOST))
+ {
+ $host = $HTTP_HOST;
+ }
+ else if (isset($SERVER_NAME) && !empty($SERVER_NAME))
+ {
+ $host = $SERVER_NAME;
+ }
+
+ $port = '';
+ if (! strstr($host, ':'))
+ {
+ if (isset($SERVER_PORT)) {
+ if (($SERVER_PORT != 80 && $proto == "http://")
+ || ($SERVER_PORT != 443 && $proto == "https://")) {
+ $port = sprintf(':%d', $SERVER_PORT);
+ }
+ }
+ }
+
+ if ($host)
+ return $proto . $host . $port . $path;
+
+ // Fallback is to omit the server name and use a relative URI,
+ // although this is not RFC 2616 compliant.
+ return $path;
+ }
+
+ function sqStripSlashes($string) {
+ if (get_magic_quotes_gpc()) {
+ $string = stripslashes($string);
+ }
+ return $string;
+ }
+
+
+ // These functions are used to encrypt the passowrd before it is
+ // stored in a cookie.
+ function OneTimePadEncrypt ($string, $pad) {
+ for ($i = 0; $i < strlen ($string); $i++) {
+ $encrypted .= chr (ord($string[$i]) ^ ord($pad[$i]));
+ }
+
+ return base64_encode($encrypted);
+ }
+
+ function OneTimePadDecrypt ($string, $pad) {
+ $encrypted = base64_decode ($string);
+
+ for ($i = 0; $i < strlen ($encrypted); $i++) {
+ $decrypted .= chr (ord($encrypted[$i]) ^ ord($pad[$i]));
+ }
+
+ return $decrypted;
+ }
+
+
+ // Randomize the mt_rand() function. Toss this in strings or
+ // integers and it will seed the generator appropriately.
+ // With strings, it is better to get them long. Use md5() to
+ // lengthen smaller strings.
+ function sq_mt_seed($Val)
+ {
+ // if mt_getrandmax() does not return a 2^n - 1 number,
+ // this might not work well. This uses $Max as a bitmask.
+ $Max = mt_getrandmax();
+
+ if (! is_int($Val))
+ {
+ if (function_exists("crc32"))
+ {
+ $Val = crc32($Val);
+ }
+ else
+ {
+ $Str = $Val;
+ $Pos = 0;
+ $Val = 0;
+ $Mask = $Max / 2;
+ $HighBit = $Max ^ $Mask;
+ while ($Pos < strlen($Str))
+ {
+ if ($Val & $HighBit)
+ {
+ $Val = (($Val & $Mask) << 1) + 1;
+ }
+ else
+ {
+ $Val = ($Val & $Mask) << 1;
+ }
+ $Val ^= $Str[$Pos];
+ $Pos ++;
+ }
+ }
+ }
+
+ if ($Val < 0)
+ $Val *= -1;
+ if ($Val = 0)
+ return;
+
+ mt_srand(($Val ^ mt_rand(0, $Max)) & $Max);
+ }
+
+
+ // This function initializes the random number generator fairly well.
+ // It also only initializes it once, so you don't accidentally get
+ // the same 'random' numbers twice in one session.
+ function sq_mt_randomize()
+ {
+ global $REMOTE_PORT, $REMOTE_ADDR, $UNIQUE_ID;
+ static $randomized;
+
+ if ($randomized)
+ return;
+
+ // Global
+ sq_mt_seed((int)((double) microtime() * 1000000));
+ sq_mt_seed(md5($REMOTE_PORT . $REMOTE_ADDR . getmypid()));
+
+ // getrusage
+ if (function_exists("getrusage")) {
+ $dat = getrusage();
+ sq_mt_seed(md5($dat["ru_nswap"] . $dat["ru_majflt"] .
+ $dat["ru_utime.tv_sec"] . $dat["ru_utime.tv_usec"]));
+ }
+
+ // Apache-specific
+ sq_mt_seed(md5($UNIQUE_ID));
+
+ $randomized = 1;
+ }
+
+ function OneTimePadCreate ($length=100) {
+ sq_mt_randomize();
+
+ for ($i = 0; $i < $length; $i++) {
+ $pad .= chr(mt_rand(0,255));
+ }
+
+ return $pad;
+ }
+
+ // Check if we have a required PHP-version. Return TRUE if we do,
+ // or FALSE if we don't.
+ // To check for 4.0.1, use sqCheckPHPVersion(4,0,1)
+ // To check for 4.0b3, use sqCheckPHPVersion(4,0,-3)
+ // Does not handle betas like 4.0.1b1 or development versions
+ function sqCheckPHPVersion($major, $minor, $release) {
+
+ $ver = phpversion();
+ eregi("^([0-9]+)\.([0-9]+)(.*)", $ver, $regs);
+
+ // Parse the version string
+ $vmajor = strval($regs[1]);
+ $vminor = strval($regs[2]);
+ $vrel = $regs[3];
+ if($vrel[0] == ".")
+ $vrel = strval(substr($vrel, 1));
+ if($vrel[0] == "b" || $vrel[0] == "B")
+ $vrel = - strval(substr($vrel, 1));
+ if($vrel[0] == "r" || $vrel[0] == "R")
+ $vrel = - strval(substr($vrel, 2))/10;
+
+ // Compare major version
+ if($vmajor < $major) return false;
+ if($vmajor > $major) return true;
+
+ // Major is the same. Compare minor
+ if($vminor < $minor) return false;
+ if($vminor > $minor) return true;
+
+ // Major and minor is the same as the required one.
+ // Compare release
+ if($vrel >= 0 && $release >= 0) { // Neither are beta
+ if($vrel < $release) return false;
+ } else if($vrel >= 0 && $release < 0){ // This is not beta, required is beta
+ return true;
+ } else if($vrel < 0 && $release >= 0){ // This is beta, require not beta
+ return false;
+ } else { // Both are beta
+ if($vrel > $release) return false;
+ }
+
+ return true;
+ }
+
+ /* Returns a string showing the size of the message/attachment */
+ function show_readable_size($bytes)
+ {
+ $bytes /= 1024;
+ $type = 'k';
+
+ if ($bytes / 1024 > 1)
+ {
+ $bytes /= 1024;
+ $type = 'm';
+ }
+
+ if ($bytes < 10)
+ {
+ $bytes *= 10;
+ settype($bytes, "integer");
+ $bytes /= 10;
+ }
+ else
+ settype($bytes, "integer");
+
+ return $bytes . '<small> ' . $type . '</small>';
+ }
+
+ /* Generates a random string from the caracter set you pass in
+ *
+ * Flags:
+ * 1 = add lowercase a-z to $chars
+ * 2 = add uppercase A-Z to $chars
+ * 4 = add numbers 0-9 to $chars
+ */
+
+ function GenerateRandomString($size, $chars, $flags = 0)
+ {
+ if ($flags & 0x1)
+ $chars .= 'abcdefghijklmnopqrstuvwxyz';
+ if ($flags & 0x2)
+ $chars .= 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
+ if ($flags & 0x4)
+ $chars .= '0123456789';
+
+ if ($size < 1 || strlen($chars) < 1)
+ return "";
+
+ sq_mt_randomize(); // Initialize the random number generator
+
+ while (strlen($String) < $size) {
+ $String .= $chars[mt_rand(0, strlen($chars))];
+ }
+
+ return $String;
+ }
+