X-Git-Url: https://vcs.fsf.org/?a=blobdiff_plain;f=functions%2Fstrings.php;h=722cedeca8bae5ddf2dac4cf28ee1cb3db17b2d4;hb=9f599fe38440e503feefc29822189727ee3bcbc2;hp=06057912cb8bb5fbdd2628dedc98c1bb00f7bed7;hpb=1d2ce1c34e00aac31c2dacfc5473b8f389395f82;p=squirrelmail.git
diff --git a/functions/strings.php b/functions/strings.php
index 06057912..722cedec 100644
--- a/functions/strings.php
+++ b/functions/strings.php
@@ -1,488 +1,598 @@
= strlen($haystack))
- return -1;
- $pos++;
- }
- return $pos;
- }
-
- // Wraps text at $wrap characters
- // Has a problem with special HTML characters, so call this before
- // you do character translation.
- // Specifically, ' comes up as 5 characters instead of 1.
- // This should not add newlines to the end of lines.
- function sqWordWrap(&$line, $wrap) {
- preg_match("/^([\s>]*)([^\s>].*)?$/", $line, $regs);
- $beginning_spaces = $regs[1];
- $words = explode(" ", $regs[2]);
-
- $i = 0;
- $line = $beginning_spaces;
-
- while ($i < count($words)) {
- // Force one word to be on a line (minimum)
- $line .= $words[$i];
- $line_len = strlen($beginning_spaces) + strlen($words[$i]) +
- strlen($words[$i + 1]) + 2;
- $i ++;
-
- // Add more words (as long as they fit)
- while ($line_len < $wrap && $i < count($words)) {
+/**
+ * strings.php
+ *
+ * Copyright (c) 1999-2002 The SquirrelMail Project Team
+ * Licensed under the GNU GPL. For full terms see the file COPYING.
+ *
+ * This code provides various string manipulation functions that are
+ * used by the rest of the Squirrelmail code.
+ *
+ * $Id$
+ */
+
+/**
+ * SquirrelMail version number -- DO NOT CHANGE
+ */
+global $version;
+$version = '1.2.5 [cvs]';
+
+/**
+ * If $haystack is a full mailbox name and $needle is the mailbox
+ * separator character, returns the last part of the mailbox name.
+ */
+function readShortMailboxName($haystack, $needle) {
+ if ($needle == '') {
+ return $haystack;
+ }
+ $parts = explode($needle, $haystack);
+ $elem = array_pop($parts);
+ while ($elem == '' && count($parts)) {
+ $elem = array_pop($parts);
+ }
+ return $elem;
+}
+
+/**
+ * If $haystack is a full mailbox name, and $needle is the mailbox
+ * separator character, returns the second last part of the full
+ * mailbox name (i.e. the mailbox's parent mailbox)
+ */
+function readMailboxParent($haystack, $needle) {
+ if ($needle == '') return '';
+ $parts = explode($needle, $haystack);
+ $elem = array_pop($parts);
+ while ($elem == '' && count($parts)) {
+ $elem = array_pop($parts);
+ }
+ return join($needle, $parts);
+}
+
+/**
+ * Returns the index of the first chunk of string $haystack that
+ * starts with non-white-space character, starting at position $pos.
+ * If there is no such chunk, returns -1.
+ */
+function next_pos_minus_white ($haystack, $pos) {
+ $len = strlen($haystack);
+ while ($pos < $len) {
+ /* Get the next character. */
+ $c = substr($haystack, $pos, 1);
+
+ /* Check the next character. */
+ if (($c != ' ') && ($c != "\t") && ($c != "\n") && ($c != "\r")) {
+ return $pos;
+ }
+
+ /* Increment position in string. */
+ ++$pos;
+ }
+ return -1;
+}
+
+/**
+ * Wraps text at $wrap characters
+ *
+ * Has a problem with special HTML characters, so call this before
+ * you do character translation.
+ *
+ * Specifically, ' comes up as 5 characters instead of 1.
+ * This should not add newlines to the end of lines.
+ */
+function sqWordWrap(&$line, $wrap) {
+ ereg("^([\t >]*)([^\t >].*)?$", $line, $regs);
+ $beginning_spaces = $regs[1];
+ if (isset($regs[2])) {
+ $words = explode(' ', $regs[2]);
+ } else {
+ $words = '';
+ }
+
+ $i = 0;
+ $line = $beginning_spaces;
+
+ while ($i < count($words)) {
+ /* Force one word to be on a line (minimum) */
+ $line .= $words[$i];
+ $line_len = strlen($beginning_spaces) + strlen($words[$i]) + 2;
+ if (isset($words[$i + 1]))
+ $line_len += strlen($words[$i + 1]);
+ $i ++;
+
+ /* Add more words (as long as they fit) */
+ while ($line_len < $wrap && $i < count($words)) {
$line .= ' ' . $words[$i];
$i++;
- $line_len += strlen($words[$i]) + 1;
- }
-
- // Skip spaces if they are the first thing on a continued line
- while (!$words[$i] && $i < count($words)) {
+ if (isset($words[$i]))
+ $line_len += strlen($words[$i]) + 1;
+ else
+ $line_len += 1;
+ }
+
+ /* Skip spaces if they are the first thing on a continued line */
+ while (!isset($words[$i]) && $i < count($words)) {
$i ++;
- }
-
- if ($i < count($words)) {
- $line .= "\n$beginning_spaces";
- }
- }
- }
-
-
- // Does the opposite of sqWordWrap()
- function sqUnWordWrap(&$body)
- {
- $lines = explode("\n", $body);
- $body = "";
- $PreviousSpaces = "";
- for ($i = 0; $i < count($lines); $i ++)
- {
- preg_match("/^([\s>]*)([^\s>].*)?$/", $lines[$i], $regs);
- $CurrentSpaces = $regs[1];
- $CurrentRest = $regs[2];
- if ($i == 0)
- {
- $PreviousSpaces = $CurrentSpaces;
- $body = $lines[$i];
- }
- else if ($PreviousSpaces == $CurrentSpaces && // Do the beginnings match
- strlen($lines[$i - 1]) > 65 && // Over 65 characters long
- strlen($CurrentRest)) // and there's a line to continue with
- {
- $body .= ' ' . $CurrentRest;
- }
- else
- {
- $body .= "\n" . $lines[$i];
- $PreviousSpaces = $CurrentSpaces;
- }
- }
- $body .= "\n";
- }
-
-
- /** Returns an array of email addresses **/
- function parseAddrs($text) {
- if (trim($text) == "")
- return;
- $text = str_replace(" ", "", $text);
- $text = ereg_replace('"[^"]*"', "", $text);
- $text = ereg_replace("\([^\)]*\)", "", $text);
- $text = str_replace(",", ";", $text);
- $array = explode(";", $text);
- for ($i = 0; $i < count ($array); $i++) {
- $array[$i] = eregi_replace ("^.*[<]", "", $array[$i]);
- $array[$i] = eregi_replace ("[>].*$", "", $array[$i]);
- }
- return $array;
- }
-
- /** Returns a line of comma separated email addresses from an array **/
- function getLineOfAddrs($array) {
- if (is_array($array)) {
- $to_line = implode(", ", $array);
- $to_line = trim(ereg_replace(",,+", ",", $to_line));
- } else {
- $to_line = "";
- }
- return $to_line;
- }
-
- function translateText(&$body, $wrap_at, $charset) {
- global $where, $what; // from searching
-
- if (!isset($url_parser_php)) {
- include "../functions/url_parser.php";
- }
-
- $body_ary = explode("\n", $body);
- for ($i=0; $i < count($body_ary); $i++) {
- $line = $body_ary[$i];
- if (strlen($line) - 2 >= $wrap_at) {
- sqWordWrap($line, $wrap_at);
- }
- $line = charset_decode($charset, $line);
- $line = str_replace("\t", ' ', $line);
-
- // We need to do it twice to catch times where there
- // are an odd number of spaces
- $line = ereg_replace("^ ", " ", $line);
- $line = str_replace(' ', ' ', $line);
- $line = str_replace(' ', ' ', $line);
- $line = nl2br($line);
-
- parseUrl ($line);
-
- $Quotes = 0;
- $pos = 0;
- while (1)
- {
- if (strpos($line, ' ', $pos) === $pos)
- {
- $pos += 6;
- }
- else if (strpos($line, '>', $pos) === $pos)
- {
+ }
+
+ /* Go to the next line if we have more to process */
+ if ($i < count($words)) {
+ $line .= "\n" . $beginning_spaces;
+ }
+ }
+}
+
+
+/**
+ * Does the opposite of sqWordWrap()
+ */
+function sqUnWordWrap(&$body) {
+ $lines = explode("\n", $body);
+ $body = '';
+ $PreviousSpaces = '';
+ for ($i = 0; $i < count($lines); $i ++) {
+ ereg("^([\t >]*)([^\t >].*)?$", $lines[$i], $regs);
+ $CurrentSpaces = $regs[1];
+ if (isset($regs[2])) {
+ $CurrentRest = $regs[2];
+ }
+
+ if ($i == 0) {
+ $PreviousSpaces = $CurrentSpaces;
+ $body = $lines[$i];
+ } else if (($PreviousSpaces == $CurrentSpaces) /* Do the beginnings match */
+ && (strlen($lines[$i - 1]) > 65) /* Over 65 characters long */
+ && strlen($CurrentRest)) { /* and there's a line to continue with */
+ $body .= ' ' . $CurrentRest;
+ } else {
+ $body .= "\n" . $lines[$i];
+ $PreviousSpaces = $CurrentSpaces;
+ }
+ }
+ $body .= "\n";
+}
+
+
+/**
+ * Returns an array of email addresses.
+ * Be cautious of "user@host.com"
+ */
+function parseAddrs($text) {
+ if (trim($text) == '')
+ return array();
+ $text = str_replace(' ', '', $text);
+ $text = ereg_replace('"[^"]*"', '', $text);
+ $text = ereg_replace('\\([^\\)]*\\)', '', $text);
+ $text = str_replace(',', ';', $text);
+ $array = explode(';', $text);
+ for ($i = 0; $i < count ($array); $i++) {
+ $array[$i] = eregi_replace ('^.*[<]', '', $array[$i]);
+ $array[$i] = eregi_replace ('[>].*$', '', $array[$i]);
+ }
+ return $array;
+}
+
+/**
+ * Returns a line of comma separated email addresses from an array.
+ */
+function getLineOfAddrs($array) {
+ if (is_array($array)) {
+ $to_line = implode(', ', $array);
+ $to_line = ereg_replace(', (, )+', ', ', $to_line);
+ $to_line = trim(ereg_replace('^, ', '', $to_line));
+ if( substr( $to_line, -1 ) == ',' )
+ $to_line = substr( $to_line, 0, -1 );
+ } else {
+ $to_line = '';
+ }
+
+ return( $to_line );
+}
+
+function translateText(&$body, $wrap_at, $charset) {
+ global $where, $what; /* from searching */
+ global $color; /* color theme */
+
+ require_once('../functions/url_parser.php');
+
+ $body_ary = explode("\n", $body);
+ $PriorQuotes = 0;
+ for ($i=0; $i < count($body_ary); $i++) {
+ $line = $body_ary[$i];
+ if (strlen($line) - 2 >= $wrap_at) {
+ sqWordWrap($line, $wrap_at);
+ }
+ $line = charset_decode($charset, $line);
+ $line = str_replace("\t", ' ', $line);
+
+ parseUrl ($line);
+
+ $Quotes = 0;
+ $pos = 0;
+ $j = strlen( $line );
+
+ while ( $pos < $j ) {
+ if ($line[$pos] == ' ') {
+ $pos ++;
+ } else if (strpos($line, '>', $pos) === $pos) {
$pos += 4;
$Quotes ++;
- }
- else
- {
- break;
- }
- }
-
- if ($Quotes > 1) {
- $line = "$line\n";
- } else if ($Quotes) {
- $line = "$line\n";
- }
-
- if ($line)
- {
- $line = '' . $line . '';
- }
-
- $body_ary[$i] = $line . '
';
- }
- $body = implode("\n", $body_ary);
- }
-
- /* SquirrelMail version number -- DO NOT CHANGE */
- $version = "0.6pre1 (cvs)";
-
-
- function find_mailbox_name ($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) {
- $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 . ' ' . $type . '';
- }
-
- /* 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 $String;
- }
+ } else {
+ break;
+ }
+ }
+
+ if ($Quotes > 1) {
+ if (! isset($color[14])) {
+ $color[14] = '#FF0000';
+ }
+ $line = '' . $line . '';
+ } elseif ($Quotes) {
+ if (! isset($color[13])) {
+ $color[13] = '#800000';
+ }
+ $line = '' . $line . '';
+ }
+
+ $body_ary[$i] = $line;
+ }
+ $body = '
' . implode("\n", $body_ary) . ''; +} + +function find_mailbox_name ($mailbox) { + if (ereg(" *\"([^\r\n\"]*)\"[ \r\n]*$", $mailbox, $regs)) + return $regs[1]; + ereg(" *([^ \r\n\"]*)[ \r\n]*$",$mailbox,$regs); + return $regs[1]; + +} + +function php_self () { + global $PHP_SELF, $HTTP_SERVER_VARS; + + if (isset($HTTP_SERVER_VARS['REQUEST_URI']) && !empty($HTTP_SERVER_VARS['REQUEST_URI']) ) { + return $HTTP_SERVER_VARS['REQUEST_URI']; + } + + if (isset($PHP_SELF) && !empty($PHP_SELF)) { + return $PHP_SELF; + } else if (isset($HTTP_SERVER_VARS['PHP_SELF']) && + !empty($HTTP_SERVER_VARS['PHP_SELF'])) { + return $HTTP_SERVER_VARS['PHP_SELF']; + } else { + return ''; + } +} + + +/** + * 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 + */ +function get_location () { + + global $PHP_SELF, $SERVER_NAME, $HTTP_HOST, $SERVER_PORT, + $HTTP_SERVER_VARS; + + /* Get the path, handle virtual directories */ + $path = substr(php_self(), 0, strrpos(php_self(), '/')); + + /* Check if this is a HTTPS or regular HTTP request. */ + $proto = 'http://'; + + /* + * If you have 'SSLOptions +StdEnvVars' in your apache config + * OR if you have HTTPS in your HTTP_SERVER_VARS + * OR if you are on port 443 + */ + $getEnvVar = getenv('HTTPS'); + if ((isset($getEnvVar) && !strcasecmp($getEnvVar, 'on')) || + (isset($HTTP_SERVER_VARS['HTTPS'])) || + (isset($HTTP_SERVER_VARS['SERVER_PORT']) && + $HTTP_SERVER_VARS['SERVER_PORT'] == 443)) { + $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 = $SERVER_NAME; + } else if (isset($HTTP_SERVER_VARS['SERVER_NAME']) && + !empty($HTTP_SERVER_VARS['SERVER_NAME'])) { + $host = $HTTP_SERVER_VARS['SERVER_NAME']; + } + + + $port = ''; + if (! strstr($host, ':')) { + if (isset($SERVER_PORT)) { + if (($SERVER_PORT != 80 && $proto == 'http://') + || ($SERVER_PORT != 443 && $proto == 'https://')) { + $port = sprintf(':%d', $SERVER_PORT); + } + } + } + + /* Fallback is to omit the server name and use a relative */ + /* URI, although this is not RFC 2616 compliant. */ + return ($host ? $proto . $host . $port . $path : $path); +} + + +/** + * These functions are used to encrypt the passowrd before it is + * stored in a cookie. + */ +function OneTimePadEncrypt ($string, $epad) { + $pad = base64_decode($epad); + $encrypted = ''; + for ($i = 0; $i < strlen ($string); $i++) { + $encrypted .= chr (ord($string[$i]) ^ ord($pad[$i])); + } + + return base64_encode($encrypted); +} + +function OneTimePadDecrypt ($string, $epad) { + $pad = base64_decode($epad); + $encrypted = base64_decode ($string); + $decrypted = ''; + for ($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')) { + /* Avoid warnings with Win32 */ + $dat = @getrusage(); + if (isset($dat) && is_array($dat)) { + $Str = ''; + foreach ($dat as $k => $v) + { + $Str .= $k . $v; + } + sq_mt_seed(md5($Str)); + } + } + + /* Apache-specific */ + sq_mt_seed(md5($UNIQUE_ID)); + + $randomized = 1; +} + +function OneTimePadCreate ($length=100) { + sq_mt_randomize(); + + $pad = ''; + for ($i = 0; $i < $length; $i++) { + $pad .= chr(mt_rand(0,255)); + } + + return base64_encode($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 . ' ' . $type . ''; +} + +/** + * 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 */ + + $String = ''; + while (strlen($String) < $size) { + $String .= $chars[mt_rand(0, strlen($chars))]; + } + + return $String; +} + +function quoteIMAP($str) { + return ereg_replace('(["\\])', '\\\\1', $str); +} + +/** + * Trims every element in the array + */ +function TrimArray(&$array) { + foreach ($array as $k => $v) { + global $$k; + if (is_array($$k)) { + foreach ($$k as $k2 => $v2) { + $$k[$k2] = substr($v2, 1); + } + } else { + $$k = substr($v, 1); + } + + /* Re-assign back to array. */ + $array[$k] = $$k; + } +} + +/** + * Removes slashes from every element in the array + */ +function RemoveSlashes(&$array) { + foreach ($array as $k => $v) { + global $$k; + if (is_array($$k)) { + foreach ($$k as $k2 => $v2) { + $newArray[stripslashes($k2)] = stripslashes($v2); + } + $$k = $newArray; + } else { + $$k = stripslashes($v); + } + + /* Re-assign back to the array. */ + $array[$k] = $$k; + } +} + +$PHP_SELF = php_self(); ?>