X-Git-Url: https://vcs.fsf.org/?p=squirrelmail.git;a=blobdiff_plain;f=functions%2Fstrings.php;h=d2aacc24e71eeab6a107b747b59722ceb3afa0c1;hp=ea3ff271da85f5c4815729b1809c7c709196fd9b;hb=15e6162eacc97158393bc75aed3afeb7b19c24a6;hpb=901a2b44059db364a6813059fd9d2d43f54373fe diff --git a/functions/strings.php b/functions/strings.php index ea3ff271..d2aacc24 100644 --- a/functions/strings.php +++ b/functions/strings.php @@ -1,234 +1,589 @@ = strlen($haystack)) return -1; $pos++; - } - return $pos; - } - - // Wraps text at $wrap characters - function sqWordWrap($passed, $wrap) { - $passed = str_replace("<", "<", $passed); - $passed = str_replace(">", ">", $passed); - - preg_match("/^(\s|>)+/", $passed, $regs); - $beginning_spaces = $regs[0]; - - $words = explode(" ", $passed); - $i = -1; - $line_len = strlen($words[0])+1; - $line = ""; - if (count($words) > 1) { - while ($i++ < count($words)) { - 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 <= $wrap) { - if (strlen($beginning_spaces) +2 >= $wrap) - $beginning_spaces = ""; - if ($i < count($words)) { // don't
the last line - $line = "$line\n$beginning_spaces"; - } - $line = "$line$words[$i] "; - $line_len = strlen($beginning_spaces) + strlen($words[$i]) + 1; - } 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$bigline
"; - } - */ - if (strlen($line) > $wrap) - $line = "$line\n$words[$i]"; - else - $line = "$line$words[$i]"; - $line_len = strlen($words[$i]); - } - } + } + 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, $wrap) { + ereg("^([\t >]*)([^\t >].*)?$", $line, $regs); + $beginning_spaces = $regs[1]; + if (isset($regs[2])) { + $words = explode(' ', $regs[2]); } else { - $line = $words[0]; + $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" . $beginning_spaces; + } } + } + - $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(";", $text); + if (trim($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]); - } + $array[$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) { if (is_array($array)) { - $to_line = implode(", ", $array); - $to_line = trim(ereg_replace(",,+", ",", $to_line)); + $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 = ""; + $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]; - $line = charset_decode($charset, $line); - $line = str_replace("\t", " ", $line); - if (strlen($line) - 2 >= $wrap_at) { - $line = sqWordWrap($line, $wrap_at); + sqWordWrap($line, $wrap_at); + } + $line = charset_decode($charset, $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 = str_replace(" ", " ", $line); - $line = nl2br($line); - $line = parseEmail ($line); - $line = parseUrl ($line); + if ($Quotes > 1) { + if (! isset($color[14])) { + $color[14] = '#FF0000'; + } + $line = '' . $line . ''; + } elseif ($Quotes) { + if (! isset($color[13])) { + $color[13] = '#800000'; + } + $line = '' . $line . ''; + } - $line = "^^$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); - $line = "$line\n"; - } else if (strpos(trim(str_replace(" ", "", $line)), ">") == 2) { - $line = substr($line, 2); - $line = "$line\n"; - } else { - $line = substr($line, 2); - } - - $body_ary[$i] = "$line
"; + $body_ary[$i] = $line; } - $body = implode("\n", $body_ary); - - return $body; + $body = '
' . implode("\n", $body_ary) . '
'; } - /* SquirrelMail version number -- DO NOT CHANGE */ - $version = "0.5pre2"; + function find_mailbox_name ($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; } - return $box; + + $port = ''; + if (! strstr($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 : $path); } - function replace_spaces ($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 > $release) return false; + } + + return true; + } + + /** + * Returns a string showing the size of the message/attachment. + */ + function show_readable_size($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'; } - return $location; - } - function sqStripSlashes($string) { - if (get_magic_quotes_gpc()) { - $string = stripslashes($string); + if (($size < 1) || (strlen($chars) < 1)) { + return ''; } - return $string; + + 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; + } + } + ?>