-<?
-
- //*************************************************************************
- // Count the number of occurances of $needle are in $haystack.
- //*************************************************************************
- function countCharInString($haystack, $needle) {
- $len = strlen($haystack);
- for ($i = 0; $i < $len; $i++) {
- if ($haystack[$i] == $needle)
- $count++;
- }
- return $count;
- }
-
- //*************************************************************************
- // Read from the back of $haystack until $needle is found, or the begining
- // of the $haystack is reached.
- //*************************************************************************
- function readShortMailboxName($haystack, $needle) {
- if (strpos($haystack, $needle)) {
- $pos = strrpos($haystack, $needle) + 1;
- $data = substr($haystack, $pos, strlen($haystack));
- } else {
- $data = $haystack;
- }
- return $data;
- }
-
- // Wraps text at $wrap characters
- function wordWrap($passed, $wrap) {
- $words = explode(" ", trim($passed));
- $i = 0;
- $line_len = strlen($words[$i])+1;
- $line = "";
- while ($i < count($words)) {
- while ($line_len < $wrap) {
- $line = "$line$words[$i] ";
+<?php
+
+/**
+ * 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 = '1.2.6 [cvs]';
+
+/**
+ * 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 = $line_len + strlen($words[$i])+1;
- }
- $line_len = strlen($words[$i])+1;
- if ($line_len < $wrap) {
- if ($i < count($words)) // don't <BR> the last line
- $line = "$line<BR>";
- } else {
- $endline = $words[$i];
- while ($line_len >= $wrap) {
- $bigline = substr($endline, 0, $wrap);
- $endline = substr($endline, $wrap, strlen($endline));
- $line_len = strlen($endline);
- $line = "$line$bigline<BR>";
+ if (isset($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)) {
+ $i ++;
+ }
+
+ /* Go to the next line if we have more to process */
+ if ($i < count($words)) {
+ $line .= "\n" . $beginning_spaces;
+ }
+ }
+}
+
+/**
+ * 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 == '') {
+ $elem = $haystack;
+ } else {
+ $parts = explode($needle, $haystack);
+ $elem = array_pop($parts);
+ while ($elem == '' && count($parts)) {
+ $elem = array_pop($parts);
+ }
+ }
+ return( $elem );
+}
+
+/**
+ * Returns an array of email addresses.
+ * Be cautious of "user@host.com"
+ */
+function parseAddrs($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 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);
}
- $line = "$line$endline<BR>";
- $i++;
- }
- }
- return $line;
- }
-
- /** Returns an array of email addresses **/
- function parseAddrs($text) {
- if (trim($text) == "") {
- return;
- }
- $text = str_replace(" ", "", $text);
- $text = str_replace(",", ";", $text);
- $array = explode(";", $text);
- return $array;
- }
-
- /** Returns a line of comma separated email addresses from an array **/
- function getLineOfAddrs($array) {
- $to_line = "";
- for ($i = 0; $i < count($array); $i++) {
- if ($to_line)
- $to_line = "$to_line, $array[$i]";
- else
- $to_line = "$array[$i]";
- }
- return $to_line;
- }
-
- /* SquirrelMail version number -- DO NOT CHANGE */
- $version = "0.2";
-?>
+ }
+ }
+
+ /* Fallback is to omit the server name and use a relative */
+ /* URI, although this is not RFC 2616 compliant. */
+ return ($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 . '<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 */
+
+ $String = '';
+ $j = strlen( $chars ) - 1;
+ while (strlen($String) < $size) {
+ $String .= $chars{mt_rand(0, $j)};
+ }
+
+ 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();
+
+?>
\ No newline at end of file