X-Git-Url: https://vcs.fsf.org/?a=blobdiff_plain;f=functions%2Fstrings.php;h=266214ae93ece695f7a75f8d42fe52622b63345a;hb=2c86c02c16613d2e95d735e15b2b26d17c563453;hp=dc85a717e560914f0cda4e36a6d6401598eb125c;hpb=af9404d7f0dbbce6106a00d96540c2d93d78cf6d;p=squirrelmail.git diff --git a/functions/strings.php b/functions/strings.php index dc85a717..0230be1b 100644 --- a/functions/strings.php +++ b/functions/strings.php @@ -1,163 +1,454 @@ ", $passed); - $passed = str_replace("<", "<", $passed); - - $words = explode(" ", trim($passed)); - $i = 0; - $line_len = strlen($words[$i])+1; - $line = ""; - while ($i < count($words)) { - while ($line_len < $wrap) { - $line = "$line$words[$i] "; - $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
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
"; - } - $line = "$line$endline
"; +/** + * SquirrelMail version number -- DO NOT CHANGE + */ +global $version; +$version = '1.4.0 [CVS-DEVEL]'; + +/** + * SquirrelMail internal version number -- DO NOT CHANGE + * $sm_internal_version = array (release, major, minor) + */ +global $SQM_INTERNAL_VERSION; +$SQM_INTERNAL_VERSION = array(1,4,0); + + +/** + * 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]; $i++; - } - } + if (isset($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"; + } + } +} - $line = str_replace(">", ">", $line); - $line = str_replace("<", "<", $line); - return $line; - } +/** + * Does the opposite of sqWordWrap() + */ +function sqUnWordWrap(&$body) { + $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; + } + } + $body .= "\n"; +} - /** Returns an array of email addresses **/ - function parseAddrs($text) { - if (trim($text) == "") { - return; - } - $text = str_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; - } +/** + * 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, $needle) { - /** Returns a line of comma separated email addresses from an array **/ - function getLineOfAddrs($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 $to_line; - } + if ($needle == '') { + $elem = $haystack; + } else { + $parts = explode($needle, $haystack); + $elem = array_pop($parts); + while ($elem == '' && count($parts)) { + $elem = array_pop($parts); + } + } + return( $elem ); +} - function translateText($body, $wrap_at, $charset) { - include ("../functions/url_parser.php"); - /** Add any parsing you want to in here */ - $body = trim($body); - $body_ary = explode("\n", $body); - - for ($i = 0; $i < count($body_ary); $i++) { - $line = $body_ary[$i]; - $line = "^^$line"; - - //$line = str_replace(">", ">", $line); - //$line = str_replace("<", "<", $line); - //$line = htmlspecialchars($line); - - if (strlen($line) >= $wrap_at) // -2 because of the ^^ at the beginning - $line = wordWrap($line, $wrap_at); - - $line = charset_decode($charset, $line); - - $line = str_replace(" ", " ", $line); - $line = str_replace("\t", "        ", $line); - $line = nl2br($line); - - if (strpos(trim(str_replace(" ", "", $line)), ">>") == 2) { - $line = substr($line, 2, strlen($line)); - $line = "$line
\n"; - } else if (strpos(trim(str_replace(" ", "", $line)), ">") == 2) { - $line = substr($line, 2, strlen($line)); - $line = "$line
\n"; - } else { - $line = substr($line, 2, strlen($line)); - $line = "$line
\n"; - } - - $line = parseEmail ($line); - $line = parseUrl ($line); - $new_body[$i] = "$line"; - } - $bdy = implode("\n", $new_body); - return $bdy; - } +/** + * Returns an array of email addresses. + * Be cautious of "user@host.com" + */ +function parseAddrs($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; +} - /* SquirrelMail version number -- DO NOT CHANGE */ - $version = "0.4pre1"; +/** + * Returns a line of comma separated email addresses from an array. + */ +function getLineOfAddrs($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 () { + if ( sqgetGlobalVar('REQUEST_URI', $req_uri, SQ_SERVER) && !empty($req_uri) ) { + return $req_uri; + } + + if ( sqgetGlobalVar('PHP_SELF', $php_self, SQ_SERVER) && !empty($php_self) ) { + return $php_self; + } + + return ''; +} - function find_mailbox_name ($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 $imap_server_type; + + /* Get the path, handle virtual directories */ + $path = substr(php_self(), 0, strrpos(php_self(), '/')); + + 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=on in your HTTP_SERVER_VARS + * OR if you are on port 443 + */ + $getEnvVar = getenv('HTTPS'); + if ((isset($getEnvVar) && !strcasecmp($getEnvVar, 'on')) || + (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. */ + if ( !sqgetGlobalVar('HTTP_HOST', $host, SQ_SERVER) || empty($host) ) { + if ( !sqgetGlobalVar('SERVER_NAME', $host, SQ_SERVER) || empty($host) ) { + $host = ''; } - return $box; + } + + $port = ''; + if (! strstr($host, ':')) { + if (sqgetGlobalVar('SERVER_PORT', $server_port, SQ_SERVER)) { + if (($server_port != 80 && $proto == 'http://') || + ($server_port != 443 && $proto == 'https://')) { + $port = sprintf(':%d', $server_port); + } + } + } + + /* this is a workaround for the weird macosx caching that + causes Apache to return 16080 as the port number, which causes + SM to bail */ + + if ($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 . $path; +} - function replace_spaces ($string) { - return str_replace(" ", " ", $string); - } - function replace_escaped_spaces ($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 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)) { + $Val = crc32($Val); + } + + 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() { + 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())); + + /* 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)); + } + } + + if(sqgetGlobalVar('UNIQUE_ID', $unique_id, SQ_SERVER)) { + sq_mt_seed(md5($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); +} + +/** + * 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 = ''; + $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(); + ?>