<?php
-/**
+/**
* strings.php
*
- * Copyright (c) 1999-2002 The SquirrelMail Project Team
+ * Copyright (c) 1999-2003 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.
*
* $Id$
+ * @package squirrelmail
*/
/**
* SquirrelMail version number -- DO NOT CHANGE
*/
global $version;
-$version = '1.2.6 [cvs]';
+$version = '1.5.0 [CVS]';
/**
- * If $haystack is a full mailbox name and $needle is the mailbox
- * separator character, returns the last part of the mailbox name.
+ * SquirrelMail internal version number -- DO NOT CHANGE
+ * $sm_internal_version = array (release, major, minor)
*/
-function readShortMailboxName($haystack, $needle) {
+global $SQM_INTERNAL_VERSION;
+$SQM_INTERNAL_VERSION = array(1,5,0);
- if ($needle == '') {
- $elem = $haystack;
+/**
+ * There can be a circular issue with includes, where the $version string is
+ * referenced by the include of global.php, etc. before it's defined.
+ * For that reason, bring in global.php AFTER we define the version strings.
+ */
+require_once(SM_PATH . 'functions/global.php');
+
+/**
+ * Wraps text at $wrap characters
+ *
+ * Has a problem with special HTML characters, so call this before
+ * you do character translation.
+ *
+ * Specifically, ' comes up as 5 characters instead of 1.
+ * This should not add newlines to the end of lines.
+ *
+ * @param string line the line of text to wrap, by ref
+ * @param int wrap the maximum line lenth
+ * @return void
+ */
+function sqWordWrap(&$line, $wrap) {
+ global $languages, $squirrelmail_language;
+
+ if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
+ function_exists($languages[$squirrelmail_language]['XTRA_CODE'])) {
+ if (mb_detect_encoding($line) != 'ASCII') {
+ $line = $languages[$squirrelmail_language]['XTRA_CODE']('wordwrap', $line, $wrap);
+ return;
+ }
+ }
+
+ ereg("^([\t >]*)([^\t >].*)?$", $line, $regs);
+ $beginning_spaces = $regs[1];
+ if (isset($regs[2])) {
+ $words = explode(' ', $regs[2]);
} else {
- $parts = explode($needle, $haystack);
- $elem = array_pop($parts);
- while ($elem == '' && count($parts)) {
- $elem = array_pop($parts);
- }
+ $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];
+ $i++;
+ if (isset($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";
+ }
}
- return( $elem );
}
/**
- * Returns an array of email addresses.
- * Be cautious of "user@host.com"
+ * Does the opposite of sqWordWrap()
+ * @param string body the text to un-wordwrap
+ * @return void
*/
-function parseAddrs($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 $array;
+function sqUnWordWrap(&$body) {
+ global $squirrelmail_language;
+
+ if ($squirrelmail_language == 'ja_JP') {
+ return;
+ }
+
+ $lines = explode("\n", $body);
+ $body = '';
+ $PreviousSpaces = '';
+ $cnt = count($lines);
+ for ($i = 0; $i < $cnt; $i ++) {
+ preg_match("/^([\t >]*)([^\t >].*)?$/", $lines[$i], $regs);
+ $CurrentSpaces = $regs[1];
+ if (isset($regs[2])) {
+ $CurrentRest = $regs[2];
+ } else {
+ $CurrentRest = '';
+ }
+
+ if ($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 a line of comma separated email addresses from an array.
+ * If $haystack is a full mailbox name and $needle is the mailbox
+ * separator character, returns the last part of the mailbox name.
+ *
+ * @param string haystack full mailbox name to search
+ * @param string needle the mailbox separator character
+ * @return string the last part of the mailbox name
*/
-function getLineOfAddrs($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( $to_line, 0, -1 );
+function readShortMailboxName($haystack, $needle) {
+
+ if ($needle == '') {
+ $elem = $haystack;
} else {
- $to_line = '';
+ $parts = explode($needle, $haystack);
+ $elem = array_pop($parts);
+ while ($elem == '' && count($parts)) {
+ $elem = array_pop($parts);
+ }
}
-
- return( $to_line );
+ return( $elem );
}
+/**
+ * Creates an URL for the page calling this function, using either the PHP global
+ * REQUEST_URI, or the PHP global PHP_SELF with QUERY_STRING added.
+ *
+ * @return string the complete url for this page
+ */
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 ( sqgetGlobalVar('REQUEST_URI', $req_uri, SQ_SERVER) && !empty($req_uri) ) {
+ return $req_uri;
}
- if (isset($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 '';
+ if ( sqgetGlobalVar('PHP_SELF', $php_self, SQ_SERVER) && !empty($php_self) ) {
+
+ // need to add query string to end of PHP_SELF to match REQUEST_URI
+ //
+ if ( sqgetGlobalVar('QUERY_STRING', $query_string, SQ_SERVER) && !empty($query_string) ) {
+ $php_self .= '?' . $query_string;
+ }
+
+ return $php_self;
}
+
+ return '';
}
/**
- * This determines the location to forward to relative to your server.
+ * Determines the location to forward to, relative to your server.
+ * This is used in HTTP Location: redirects.
* 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:
+ * remove all this code except the last two lines, and have it return
+ * the right URL for your site, something like:
*
- * http://www.myhost.com/squirrelmail/src/login.php
+ * http://www.example.com/squirrelmail/
+ *
+ * @return string the base url for this SquirrelMail installation
*/
function get_location () {
-
- global $PHP_SELF, $SERVER_NAME, $HTTP_HOST, $SERVER_PORT,
- $HTTP_SERVER_VARS;
-
+
+ global $imap_server_type;
+
/* Get the path, handle virtual directories */
- $path = substr(php_self(), 0, strrpos(php_self(), '/'));
-
+ if(strpos(php_self(), '?')) {
+ $path = substr(php_self(), 0, strpos(php_self(), '?'));
+ } else {
+ $path = php_self();
+ }
+ $path = substr($path, 0, strrpos($path, '/'));
+ if ( sqgetGlobalVar('sq_base_url', $full_url, SQ_SESSION) ) {
+ return $full_url . $path;
+ }
+
/* 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 have HTTPS=on 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)) {
+ (sqgetGlobalVar('HTTPS', $https_on, SQ_SERVER) && !strcasecmp($https_on, 'on')) ||
+ (sqgetGlobalVar('SERVER_PORT', $server_port, SQ_SERVER) && $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'];
+ if ( !sqgetGlobalVar('HTTP_HOST', $host, SQ_SERVER) || empty($host) ) {
+ if ( !sqgetGlobalVar('SERVER_NAME', $host, SQ_SERVER) || empty($host) ) {
+ $host = '';
+ }
}
-
$port = '';
if (! strstr($host, ':')) {
- if (isset($SERVER_PORT)) {
- if (($SERVER_PORT != 80 && $proto == 'http://')
- || ($SERVER_PORT != 443 && $proto == 'https://')) {
- $port = sprintf(':%d', $SERVER_PORT);
+ if (sqgetGlobalVar('SERVER_PORT', $server_port, SQ_SERVER)) {
+ if (($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 : $path);
+
+ /* this is a workaround for the weird macosx caching that
+ causes Apache to return 16080 as the port number, which causes
+ SM to bail */
+
+ if ($imap_server_type == 'macosx' && $port == ':16080') {
+ $port = '';
+ }
+
+ /* Fallback is to omit the server name and use a relative */
+ /* URI, although this is not RFC 2616 compliant. */
+ $full_url = ($host ? $proto . $host . $port : '');
+ sqsession_register($full_url, 'sq_base_url');
+ return $full_url . $path;
}
/**
- * These functions are used to encrypt the passowrd before it is
- * stored in a cookie.
+ * These functions are used to encrypt the password before it is
+ * stored in a cookie. The encryption key is generated by
+ * OneTimePadCreate();
+ *
+ * @param string string the (password)string to encrypt
+ * @param string epad the encryption key
+ * @return string the base64-encoded encrypted password
*/
function OneTimePadEncrypt ($string, $epad) {
$pad = base64_decode($epad);
for ($i = 0; $i < strlen ($string); $i++) {
$encrypted .= chr (ord($string[$i]) ^ ord($pad[$i]));
}
-
+
return base64_encode($encrypted);
}
+/**
+ * Decrypt a password from the cookie, encrypted by OneTimePadEncrypt.
+ * This uses the encryption key that is stored in the session.
+ *
+ * @param string string the string to decrypt
+ * @param string epad the encryption key from the session
+ * @return string the decrypted password
+ */
function OneTimePadDecrypt ($string, $epad) {
$pad = base64_decode($epad);
$encrypted = base64_decode ($string);
for ($i = 0; $i < strlen ($encrypted); $i++) {
$decrypted .= chr (ord($encrypted[$i]) ^ ord($pad[$i]));
}
-
+
return $decrypted;
}
* Randomize the mt_rand() function. Toss this in strings or integers
* and it will seed the generator appropriately. With strings, it is
* better to get them long. Use md5() to lengthen smaller strings.
+ *
+ * @param mixed val a value to seed the random number generator
+ * @return void
*/
function sq_mt_seed($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.
+ *
+ * @return void
*/
function sq_mt_randomize() {
- global $REMOTE_PORT, $REMOTE_ADDR, $UNIQUE_ID;
static $randomized;
-
+
if ($randomized) {
return;
}
-
+
/* Global. */
+ sqgetGlobalVar('REMOTE_PORT', $remote_port, SQ_SERVER);
+ sqgetGlobalVar('REMOTE_ADDR', $remote_addr, SQ_SERVER);
sq_mt_seed((int)((double) microtime() * 1000000));
- sq_mt_seed(md5($REMOTE_PORT . $REMOTE_ADDR . getmypid()));
-
+ sq_mt_seed(md5($remote_port . $remote_addr . getmypid()));
+
/* getrusage */
if (function_exists('getrusage')) {
/* Avoid warnings with Win32 */
sq_mt_seed(md5($Str));
}
}
-
- /* Apache-specific */
- sq_mt_seed(md5($UNIQUE_ID));
-
+
+ if(sqgetGlobalVar('UNIQUE_ID', $unique_id, SQ_SERVER)) {
+ sq_mt_seed(md5($unique_id));
+ }
+
$randomized = 1;
}
+/**
+ * Creates an encryption key for encrypting the password stored in the cookie.
+ * The encryption key itself is stored in the session.
+ *
+ * @param int length optional, length of the string to generate
+ * @return string the encryption key
+ */
function OneTimePadCreate ($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)
+ * Returns a string showing the size of the message/attachment.
*
- * 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 > $release) return false;
- }
-
- return true;
-}
-
-/**
- * Returns a string showing the size of the message/attachment.
+ * @param int bytes the filesize in bytes
+ * @return string the filesize in human readable format
*/
function show_readable_size($bytes) {
$bytes /= 1024;
$type = 'k';
-
+
if ($bytes / 1024 > 1) {
$bytes /= 1024;
- $type = 'm';
+ $type = 'M';
}
-
+
if ($bytes < 10) {
$bytes *= 10;
settype($bytes, 'integer');
} 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
+ * @param int size the size of the string to generate
+ * @param string chars a string containing the characters to use
+ * @param int flags a flag to add a specific set to the characters to use:
+ * Flags:
+ * 1 = add lowercase a-z to $chars
+ * 2 = add uppercase A-Z to $chars
+ * 4 = add numbers 0-9 to $chars
+ * @return string the random string
*/
function GenerateRandomString($size, $chars, $flags = 0) {
if ($flags & 0x4) {
$chars .= '0123456789';
}
-
+
if (($size < 1) || (strlen($chars) < 1)) {
return '';
}
return $String;
}
-function quoteIMAP($str) {
+/**
+ * Escapes special characters for use in IMAP commands.
+ * @param string the string to escape
+ * @return string the escaped string
+ */
+function quoteimap($str) {
return ereg_replace('(["\\])', '\\\\1', $str);
}
/**
- * Trims every element in the array
+ * Trims every element in the array, ie. remove the first char of each element
+ * @param array array the array to trim
*/
function TrimArray(&$array) {
foreach ($array as $k => $v) {
} else {
$$k = substr($v, 1);
}
-
+
/* Re-assign back to array. */
$array[$k] = $$k;
}
-}
+}
/**
- * Removes slashes from every element in the array
+ * Returns a link to the compose-page, taking in consideration
+ * the compose_in_new and javascript settings.
+ * @param string url the URL to the compose page
+ * @param string text the link text, default "Compose"
+ * @return string a link to the compose page
*/
-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;
+function makeComposeLink($url, $text = null, $target='')
+{
+ global $compose_new_win,$javascript_on;
+
+ if(!$text) {
+ $text = _("Compose");
}
+
+
+ // if not using "compose in new window", make
+ // regular link and be done with it
+ if($compose_new_win != '1') {
+ return makeInternalLink($url, $text, $target);
+ }
+
+
+ // build the compose in new window link...
+
+
+ // if javascript is on, use onClick event to handle it
+ if($javascript_on) {
+ sqgetGlobalVar('base_uri', $base_uri, SQ_SESSION);
+ return '<a href="javascript:void(0)" onclick="comp_in_new(\''.$base_uri.$url.'\')">'. $text.'</a>';
+ }
+
+
+ // otherwise, just open new window using regular HTML
+ return makeInternalLink($url, $text, '_blank');
+
}
-$PHP_SELF = php_self();
+/**
+ * sm_print_r($some_variable, [$some_other_variable [, ...]]);
+ * Debugging function - does the same as print_r, but makes sure special
+ * characters are converted to htmlentities first. This will allow
+ * values like <some@email.address> to be displayed.
+ * The output is wrapped in <pre> and </pre> tags.
+ *
+ * @return void
+ */
+function sm_print_r() {
+ ob_start(); // Buffer output
+ foreach(func_get_args() as $var) {
+ print_r($var);
+ echo "\n";
+ }
+ $buffer = ob_get_contents(); // Grab the print_r output
+ ob_end_clean(); // Silently discard the output & stop buffering
+ print '<pre>';
+ print htmlentities($buffer);
+ print '</pre>';
+}
-?>
\ No newline at end of file
+$PHP_SELF = php_self();
+?>