<?php
- $strings_php = true;
+/**
+ * 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.
+ *
+ * $Id$
+ */
- //*************************************************************************
- // Count the number of occurances of $needle are in $haystack.
- //*************************************************************************
+/*****************************************************************/
+/*** THIS FILE NEEDS TO HAVE ITS FORMATTING FIXED!!! ***/
+/*** PLEASE DO SO AND REMOVE THIS COMMENT SECTION. ***/
+/*** + Base level indent should begin at left margin, as ***/
+/*** the comment and $version stuff below. ***/
+/*** + All identation should consist of four space blocks ***/
+/*** + Tab characters are evil. ***/
+/*** + all comments should use "slash-star ... star-slash" ***/
+/*** style -- no pound characters, no slash-slash style ***/
+/*** + FLOW CONTROL STATEMENTS (if, while, etc) SHOULD ***/
+/*** ALWAYS USE { AND } CHARACTERS!!! ***/
+/*** + Please use ' instead of ", when possible. Note " ***/
+/*** should always be used in _( ) function calls. ***/
+/*** Thank you for your help making the SM code more readable. ***/
+/*****************************************************************/
+
+/**
+ * SquirrelMail version number -- DO NOT CHANGE
+ */
+global $version;
+$version = '1.2.2 [cvs]';
+
+ /**
+ * Count the number of occurances of $needle are in $haystack.
+ * $needle can be a character or string, and need not occur in $haystack
+ */
function countCharInString($haystack, $needle) {
- $len = strlen($haystack);
- for ($i = 0; $i < $len; $i++) {
- if ($haystack[$i] == $needle)
- $count++;
- }
- return $count;
+ if ($needle == '') return 0;
+ return count(explode($needle, $haystack));
}
- //*************************************************************************
- // Read from the back of $haystack until $needle is found, or the begining
- // of the $haystack is reached.
- //*************************************************************************
+ /**
+ * Read from the back of $haystack until $needle is found, or the begining
+ * of the $haystack is reached. $needle is a single character
+ */
function readShortMailboxName($haystack, $needle) {
- if (substr($haystack, -1) == $needle)
- $haystack = substr($haystack, 0, strlen($haystack) - 1);
+ if ($needle == '') return $haystack;
+ $parts = explode($needle, $haystack);
+ $elem = array_pop($parts);
+ while ($elem == '' && count($parts))
+ {
+ $elem = array_pop($parts);
+ }
+ return $elem;
+ }
- if (strrpos($haystack, $needle)) {
- $pos = strrpos($haystack, $needle) + 1;
- $data = substr($haystack, $pos, strlen($haystack));
- } else {
- $data = $haystack;
+ /**
+ * Read from the back of $haystack until $needle is found, or the begining
+ * of the $haystack is reached. $needle is a single character
+ */
+ function readMailboxParent($haystack, $needle) {
+ if ($needle == '') return '';
+ $parts = explode($needle, $haystack);
+ $elem = array_pop($parts);
+ while ($elem == '' && count($parts))
+ {
+ $elem = array_pop($parts);
}
- return $data;
+ return join($needle, $parts);
}
- // Searches for the next position in a string minus white space
+ /**
+ * Searches for the next position in a string minus white space.
+ */
function next_pos_minus_white ($haystack, $pos) {
- while (substr($haystack, $pos, 1) == " " ||
+ while (substr($haystack, $pos, 1) == ' ' ||
substr($haystack, $pos, 1) == "\t" ||
substr($haystack, $pos, 1) == "\n" ||
substr($haystack, $pos, 1) == "\r") {
if ($pos >= strlen($haystack))
return -1;
$pos++;
- }
- return $pos;
+ }
+ return $pos;
}
- // Wraps text at $wrap characters
- function wordWrap($passed, $wrap) {
- $passed = str_replace(">", ">", $passed);
- $passed = str_replace("<", "<", $passed);
+ /**
+ * 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 = "";
+ }
- $words = explode(" ", trim($passed));
$i = 0;
- $line_len = strlen($words[$i])+1;
- $line = "";
- if (count($words) > 1) {
- while ($i < count($words)-1) {
- while ($line_len < $wrap) {
- $line = "$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\n";
- } 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>";
- }
- $line = "$line$endline<BR>";
- $i++;
- }
+ $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];
+ $i++;
+ if (isset($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;
}
- } else {
- $line = $words[0];
}
+ }
+
- $line = str_replace(">", ">", $line);
- $line = str_replace("<", "<", $line);
- return $line;
+ /**
+ * Does the opposite of sqWordWrap()
+ */
+ function sqUnWordWrap(&$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;
+ }
+ }
+ $body .= "\n";
}
- /** Returns an array of email addresses **/
+
+ /**
+ * Returns an array of email addresses.
+ * Be cautious of "user@host.com"
+ */
function parseAddrs($text) {
- if (trim($text) == "") {
- return;
- }
- $text = str_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]);
- }
+ 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 $array;
}
- /** Returns a line of comma separated email addresses from an array **/
+ /**
+ * Returns a line of comma separated email addresses from an array.
+ */
function getLineOfAddrs($array) {
- $to_line = "";
- for ($i = 0; $i < count($array); $i++) {
- if ($to_line)
- $to_line = "$to_line, $array[$i]";
- else
- $to_line = "$array[$i]";
+ if (is_array($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;
+
+ return( $to_line );
}
- function translateText($body, $wrap_at, $charset) {
+ function translateText(&$body, $wrap_at, $charset) {
global $where, $what; // from searching
+ global $color; // color theme
+
+ require_once('../functions/url_parser.php');
- if (!isset($url_parser_php)) {
- include "../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(" ", " ", $line);
- $line = str_replace("\t", " ", $line);
- $line = nl2br($line);
+ $line = str_replace("\t", ' ', $line);
+
+ parseUrl ($line);
+
+ $Quotes = 0;
+ $pos = 0;
+ while (1) {
+ if ($line[$pos] == ' ') {
+ $pos ++;
+ } else if (strpos($line, '>', $pos) === $pos) {
+ $pos += 4;
+ $Quotes ++;
+ } else {
+ break;
+ }
+ }
- $line = parseEmail ($line);
- $line = parseUrl ($line);
+ if ($Quotes > 1) {
+ if (! isset($color[14])) {
+ $color[14] = '#FF0000';
+ }
+ $line = '<FONT COLOR="' . $color[14] . '">' . $line . '</FONT>';
+ } elseif ($Quotes) {
+ if (! isset($color[13])) {
+ $color[13] = '#800000';
+ }
+ $line = '<FONT COLOR="' . $color[13] . '">' . $line . '</FONT>';
+ }
- $line = "^^$line"; // gotta do this because if not, strpos() returns 0
- // which in PHP is the same as false. Now it returns 2
- if (strpos(trim(str_replace(" ", "", $line)), ">>") == 2) {
- $line = substr($line, 2);
- $line = "<FONT COLOR=FF0000>$line</FONT>\n";
- } else if (strpos(trim(str_replace(" ", "", $line)), ">") == 2) {
- $line = substr($line, 2);
- $line = "<FONT COLOR=800000>$line</FONT>\n";
- } else {
- $line = substr($line, 2);
- }
-
- $body_ary[$i] = "<tt>$line</tt><br>";
+ $body_ary[$i] = $line;
}
- $body = implode("\n", $body_ary);
-
- return $body;
+ $body = '<pre>' . implode("\n", $body_ary) . '</pre>';
}
- /* SquirrelMail version number -- DO NOT CHANGE */
- $version = "0.5pre1";
+ function find_mailbox_name ($mailbox) {
+ if (ereg(" *\"([^\r\n\"]*)\"[ \r\n]*$", $mailbox, $regs))
+ return $regs[1];
+ ereg(" *([^ \r\n\"]*)[ \r\n]*$",$mailbox,$regs);
+ return $regs[1];
+ }
- function find_mailbox_name ($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));
+ /**
+ * 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. */
+ $path = substr($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;
+ }
+
+ $port = '';
+ if (! strstr($host, ':')) {
+ if (isset($SERVER_PORT)) {
+ if (($SERVER_PORT != 80 && $proto == 'http://')
+ || ($SERVER_PORT != 443 && $proto == 'https://')) {
+ $port = sprintf(':%d', $SERVER_PORT);
+ }
+ }
}
- return $box;
+
+ /* Fallback is to omit the server name and use a relative */
+ /* URI, although this is not RFC 2616 compliant. */
+ return ($host ? $proto . $host . $port . $path : $path);
}
- function replace_spaces ($string) {
- return str_replace(" ", " ", $string);
+
+ /**
+ * These functions are used to encrypt the passowrd before it is
+ * stored in a cookie.
+ */
+ function OneTimePadEncrypt ($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 replace_escaped_spaces ($string) {
- return str_replace(" ", " ", $string);
+ function OneTimePadDecrypt ($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;
}
- 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;
- // 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' ) {
- $proto = "https://";
+ /**
+ * Randomize the mt_rand() function. Toss this in strings or integers
+ * and it will seed the generator appropriately. With strings, it is
+ * better to get them long. Use md5() to lengthen smaller strings.
+ */
+ function sq_mt_seed($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;
}
-
- // Get the hostname from the Host header or server config.
- // Fallback is to omit the server name and use a relative URI,
- // although this is not RFC 2616 compliant.
- if(isset($HTTP_HOST) && !empty($HTTP_HOST)) {
- $location = $proto . $HTTP_HOST . $path;
- } else if(isset($SERVER_NAME) && !empty($SERVER_NAME)) {
- $location = $proto . $SERVER_NAME . $path;
- } else {
- $location = $path;
+
+ /* Global. */
+ sq_mt_seed((int)((double) microtime() * 1000000));
+ sq_mt_seed(md5($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 $location;
- }
+
+ return true;
+ }
+
+ /**
+ * Returns a string showing the size of the message/attachment.
+ */
+ function show_readable_size($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
+
+ $String = "";
+ while (strlen($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;
+ }
+ }
+
?>
projects / squirrelmail.git / blobdiff