X-Git-Url: https://vcs.fsf.org/?p=squirrelmail.git;a=blobdiff_plain;f=functions%2Fstrings.php;h=ee4fa5965a53316537ec4db4a75824337d442531;hp=3e5c9db2c32715842b92ffabcee710b58095f807;hb=a0fef6da0165f633881f5d3d3892cfc130cb7a23;hpb=4022e8fe81d0d357eff13c9993971ce62ce981f6
diff --git a/functions/strings.php b/functions/strings.php
index 3e5c9db2..b8166754 100644
--- a/functions/strings.php
+++ b/functions/strings.php
@@ -1,90 +1,325 @@
';
+ }
+ if ($citeLevel != 0) {
+ $str .= ' ';
+ }
+}
/**
- * If $haystack is a full mailbox name and $needle is the mailbox
- * separator character, returns the last part of the mailbox name.
+ * Create a newline in the string, adding citation
+ * markers to the newline as necessary.
+ *
+ * @author Justus Pendleton
+ * @param string $str the string to make a newline in
+ * @param int $citeLevel the citation level the newline is at
+ * @param int $column starting column of the newline
+ * @return null
+ * @since 1.5.1
*/
-function readShortMailboxName($haystack, $needle) {
- if ($needle == '') {
- return $haystack;
- }
- $parts = explode($needle, $haystack);
- $elem = array_pop($parts);
- while ($elem == '' && count($parts)) {
- $elem = array_pop($parts);
+function sqMakeNewLine (&$str, $citeLevel, &$column) {
+ $str .= "\n";
+ $column = 0;
+ if ($citeLevel > 0) {
+ sqMakeCite ($str, $citeLevel);
+ $column = $citeLevel + 1;
+ } else {
+ $column = 0;
}
- return $elem;
}
/**
- * If $haystack is a full mailbox name, and $needle is the mailbox
- * separator character, returns the second last part of the full
- * mailbox name (i.e. the mailbox's parent mailbox)
+ * Checks for spaces in strings - only used if PHP doesn't have native ctype support
+ *
+ * You might be able to rewrite the function by adding short evaluation form.
+ *
+ * possible problems:
+ * - iso-2022-xx charsets - hex 20 might be part of other symbol. I might
+ * be wrong. 0x20 is not used in iso-2022-jp. I haven't checked iso-2022-kr
+ * and iso-2022-cn mappings.
+ *
+ * - no-break space ( ) - it is 8bit symbol, that depends on charset.
+ * there are at least three different charset groups that have nbsp in
+ * different places.
+ *
+ * I don't see any charset/nbsp options in php ctype either.
+ *
+ * @param string $string tested string
+ * @return bool true when only whitespace symbols are present in test string
+ * @since 1.5.1
*/
-function readMailboxParent($haystack, $needle) {
- if ($needle == '') return '';
- $parts = explode($needle, $haystack);
- $elem = array_pop($parts);
- while ($elem == '' && count($parts)) {
- $elem = array_pop($parts);
+function sm_ctype_space($string) {
+ if ( preg_match('/^[\x09-\x0D]|^\x20/', $string) || $string=='') {
+ return true;
+ } else {
+ return false;
}
- return join($needle, $parts);
}
/**
- * Returns the index of the first chunk of string $haystack that
- * starts with non-white-space character, starting at position $pos.
- * If there is no such chunk, returns -1.
+ * Wraps text at $wrap characters. While sqWordWrap takes
+ * a single line of text and wraps it, this function works
+ * on the entire corpus at once, this allows it to be a little
+ * bit smarter and when and how to wrap.
+ *
+ * @author Justus Pendleton
+ * @param string $body the entire body of text
+ * @param int $wrap the maximum line length
+ * @return string the wrapped text
+ * @since 1.5.1
*/
-function next_pos_minus_white ($haystack, $pos) {
- $len = strlen($haystack);
- while ($pos < $len) {
- /* Get the next character. */
- $c = substr($haystack, $pos, 1);
-
- /* Check the next character. */
- if (($c != ' ') && ($c != "\t") && ($c != "\n") && ($c != "\r")) {
- return $pos;
+function &sqBodyWrap (&$body, $wrap) {
+ //check for ctype support, and fake it if it doesn't exist
+ if (!function_exists('ctype_space')) {
+ function ctype_space ($string) {
+ return sm_ctype_space($string);
}
+ }
+
+ // the newly wrapped text
+ $outString = '';
+ // current column since the last newline in the outstring
+ $outStringCol = 0;
+ $length = sq_strlen($body);
+ // where we are in the original string
+ $pos = 0;
+ // the number of >>> citation markers we are currently at
+ $citeLevel = 0;
+
+ // the main loop, whenever we start a newline of input text
+ // we start from here
+ while ($pos < $length) {
+ // we're at the beginning of a line, get the new cite level
+ $newCiteLevel = 0;
+
+ while (($pos < $length) && (sq_substr($body,$pos,1) == '>')) {
+ $newCiteLevel++;
+ $pos++;
+
+ // skip over any spaces interleaved among the cite markers
+ while (($pos < $length) && (sq_substr($body,$pos,1) == ' ')) {
+
+ $pos++;
+
+ }
+ if ($pos >= $length) {
+ break;
+ }
+ }
+
+ // special case: if this is a blank line then maintain it
+ // (i.e. try to preserve original paragraph breaks)
+ // unless they occur at the very beginning of the text
+ if ((sq_substr($body,$pos,1) == "\n" ) && (sq_strlen($outString) != 0)) {
+ $outStringLast = $outString{sq_strlen($outString) - 1};
+ if ($outStringLast != "\n") {
+ $outString .= "\n";
+ }
+ sqMakeCite ($outString, $newCiteLevel);
+ $outString .= "\n";
+ $pos++;
+ $outStringCol = 0;
+ continue;
+ }
+
+ // if the cite level has changed, then start a new line
+ // with the new cite level.
+ if (($citeLevel != $newCiteLevel) && ($pos > ($newCiteLevel + 1)) && ($outStringCol != 0)) {
+ sqMakeNewLine ($outString, 0, $outStringCol);
+ }
+
+ $citeLevel = $newCiteLevel;
+
+ // prepend the quote level if necessary
+ if ($outStringCol == 0) {
+ sqMakeCite ($outString, $citeLevel);
+ // if we added a citation then move the column
+ // out by citelevel + 1 (the cite markers + the space)
+ $outStringCol = $citeLevel + ($citeLevel ? 1 : 0);
+ } else if ($outStringCol > $citeLevel) {
+ // not a cite and we're not at the beginning of a line
+ // in the output. add a space to separate the new text
+ // from previous text.
+ $outString .= ' ';
+ $outStringCol++;
+ }
+
+ // find the next newline -- we don't want to go further than that
+ $nextNewline = sq_strpos ($body, "\n", $pos);
+ if ($nextNewline === FALSE) {
+ $nextNewline = $length;
+ }
- /* Increment position in string. */
- ++$pos;
+ // Don't wrap unquoted lines at all. For now the textarea
+ // will work fine for this. Maybe revisit this later though
+ // (for completeness more than anything else, I think)
+ if ($citeLevel == 0) {
+ $outString .= sq_substr ($body, $pos, ($nextNewline - $pos));
+ $outStringCol = $nextNewline - $pos;
+ if ($nextNewline != $length) {
+ sqMakeNewLine ($outString, 0, $outStringCol);
+ }
+ $pos = $nextNewline + 1;
+ continue;
+ }
+ /**
+ * Set this to false to stop appending short strings to previous lines
+ */
+ $smartwrap = true;
+ // inner loop, (obviously) handles wrapping up to
+ // the next newline
+ while ($pos < $nextNewline) {
+ // skip over initial spaces
+ while (($pos < $nextNewline) && (ctype_space (sq_substr($body,$pos,1)))) {
+ $pos++;
+ }
+ // if this is a short line then just append it and continue outer loop
+ if (($outStringCol + $nextNewline - $pos) <= ($wrap - $citeLevel - 1) ) {
+ // if this is the final line in the input string then include
+ // any trailing newlines
+ // echo substr($body,$pos,$wrap). "
";
+ if (($nextNewline + 1 == $length) && (sq_substr($body,$nextNewline,1) == "\n")) {
+ $nextNewline++;
+ }
+
+ // trim trailing spaces
+ $lastRealChar = $nextNewline;
+ while (($lastRealChar > $pos && $lastRealChar < $length) && (ctype_space (sq_substr($body,$lastRealChar,1)))) {
+ $lastRealChar--;
+ }
+ // decide if appending the short string is what we want
+ if (($nextNewline < $length && sq_substr($body,$nextNewline,1) == "\n") &&
+ isset($lastRealChar)) {
+ $mypos = $pos;
+ //check the first word:
+ while (($mypos < $length) && (sq_substr($body,$mypos,1) == '>')) {
+ $mypos++;
+ // skip over any spaces interleaved among the cite markers
+ while (($mypos < $length) && (sq_substr($body,$mypos,1) == ' ')) {
+ $mypos++;
+ }
+ }
+/*
+ $ldnspacecnt = 0;
+ if ($mypos == $nextNewline+1) {
+ while (($mypos < $length) && ($body{$mypos} == ' ')) {
+ $ldnspacecnt++;
+ }
+ }
+*/
+
+ $firstword = sq_substr($body,$mypos,sq_strpos($body,' ',$mypos) - $mypos);
+ //if ($dowrap || $ldnspacecnt > 1 || ($firstword && (
+ if (!$smartwrap || $firstword && (
+ $firstword{0} == '-' ||
+ $firstword{0} == '+' ||
+ $firstword{0} == '*' ||
+ sq_substr($firstword,0,1) == sq_strtoupper(sq_substr($firstword,0,1)) ||
+ strpos($firstword,':'))) {
+ $outString .= sq_substr($body,$pos,($lastRealChar - $pos+1));
+ $outStringCol += ($lastRealChar - $pos);
+ sqMakeNewLine($outString,$citeLevel,$outStringCol);
+ $nextNewline++;
+ $pos = $nextNewline;
+ $outStringCol--;
+ continue;
+ }
+
+ }
+
+ $outString .= sq_substr ($body, $pos, ($lastRealChar - $pos + 1));
+ $outStringCol += ($lastRealChar - $pos);
+ $pos = $nextNewline + 1;
+ continue;
+ }
+
+ $eol = $pos + $wrap - $citeLevel - $outStringCol;
+ // eol is the tentative end of line.
+ // look backwards for there for a whitespace to break at.
+ // if it's already less than our current position then
+ // our current line is already too long, break immediately
+ // and restart outer loop
+ if ($eol <= $pos) {
+ sqMakeNewLine ($outString, $citeLevel, $outStringCol);
+ continue;
+ }
+
+ // start looking backwards for whitespace to break at.
+ $breakPoint = $eol;
+ while (($breakPoint > $pos) && (! ctype_space (sq_substr($body,$breakPoint,1)))) {
+ $breakPoint--;
+ }
+
+ // if we didn't find a breakpoint by looking backward then we
+ // need to figure out what to do about that
+ if ($breakPoint == $pos) {
+ // if we are not at the beginning then end this line
+ // and start a new loop
+ if ($outStringCol > ($citeLevel + 1)) {
+ sqMakeNewLine ($outString, $citeLevel, $outStringCol);
+ continue;
+ } else {
+ // just hard break here. most likely we are breaking
+ // a really long URL. could also try searching
+ // forward for a break point, which is what Mozilla
+ // does. don't bother for now.
+ $breakPoint = $eol;
+ }
+ }
+
+ // special case: maybe we should have wrapped last
+ // time. if the first breakpoint here makes the
+ // current line too long and there is already text on
+ // the current line, break and loop again if at
+ // beginning of current line, don't force break
+ $SLOP = 6;
+ if ((($outStringCol + ($breakPoint - $pos)) > ($wrap + $SLOP)) && ($outStringCol > ($citeLevel + 1))) {
+ sqMakeNewLine ($outString, $citeLevel, $outStringCol);
+ continue;
+ }
+
+ // skip newlines or whitespace at the beginning of the string
+ $substring = sq_substr ($body, $pos, ($breakPoint - $pos));
+ $substring = rtrim ($substring); // do rtrim and ctype_space have the same ideas about whitespace?
+ $outString .= $substring;
+ $outStringCol += sq_strlen ($substring);
+ // advance past the whitespace which caused the wrap
+ $pos = $breakPoint;
+ while (($pos < $length) && (ctype_space (sq_substr($body,$pos,1)))) {
+ $pos++;
+ }
+ if ($pos < $length) {
+ sqMakeNewLine ($outString, $citeLevel, $outStringCol);
+ }
+ }
}
- return -1;
+
+ return $outString;
}
/**
@@ -93,72 +328,100 @@ function next_pos_minus_white ($haystack, $pos) {
* Has a problem with special HTML characters, so call this before
* you do character translation.
*
- * Specifically, ' comes up as 5 characters instead of 1.
+ * 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
+ * @param string $charset name of charset used in $line string. Available since v.1.5.1.
+ * @return void
+ * @since 1.0
*/
-function sqWordWrap(&$line, $wrap) {
- ereg("^([\t >]*)([^\t >].*)?$", $line, $regs);
+function sqWordWrap(&$line, $wrap, $charset='') {
+ global $languages, $squirrelmail_language;
+
+ // Use custom wrapping function, if translation provides it
+ if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
+ function_exists($languages[$squirrelmail_language]['XTRA_CODE'] . '_wordwrap')) {
+ if (mb_detect_encoding($line) != 'ASCII') {
+ $line = call_user_func($languages[$squirrelmail_language]['XTRA_CODE'] . '_wordwrap', $line, $wrap);
+ return;
+ }
+ }
+
+ preg_match('/^([\t >]*)([^\t >].*)?$/', $line, $regs);
$beginning_spaces = $regs[1];
if (isset($regs[2])) {
$words = explode(' ', $regs[2]);
} else {
- $words = "";
+ $words = array();
}
-
+
$i = 0;
$line = $beginning_spaces;
-
+
while ($i < count($words)) {
- // Force one word to be on a line (minimum)
+ /* Force one word to be on a line (minimum) */
$line .= $words[$i];
- $line_len = strlen($beginning_spaces) + strlen($words[$i]) + 2;
+ $line_len = strlen($beginning_spaces) + sq_strlen($words[$i],$charset) + 2;
if (isset($words[$i + 1]))
- $line_len += strlen($words[$i + 1]);
+ $line_len += sq_strlen($words[$i + 1],$charset);
$i ++;
-
- // Add more words (as long as they fit)
+
+ /* Add more words (as long as they fit) */
while ($line_len < $wrap && $i < count($words)) {
$line .= ' ' . $words[$i];
$i++;
if (isset($words[$i]))
- $line_len += strlen($words[$i]) + 1;
+ $line_len += sq_strlen($words[$i],$charset) + 1;
else
$line_len += 1;
}
-
- // Skip spaces if they are the first thing on a continued line
+
+ /* Skip spaces if they are the first thing on a continued line */
while (!isset($words[$i]) && $i < count($words)) {
$i ++;
}
-
- // Go to the next line if we have more to process
+
+ /* Go to the next line if we have more to process */
if ($i < count($words)) {
- $line .= "\n" . $beginning_spaces;
+ $line .= "\n";
}
}
}
-
/**
* Does the opposite of sqWordWrap()
+ * @param string $body the text to un-wordwrap
+ * @return void
+ * @since 1.0
*/
function sqUnWordWrap(&$body) {
+ global $squirrelmail_language;
+
+ if ($squirrelmail_language == 'ja_JP') {
+ return;
+ }
+
$lines = explode("\n", $body);
- $body = "";
- $PreviousSpaces = "";
- for ($i = 0; $i < count($lines); $i ++) {
- ereg("^([\t >]*)([^\t >].*)?$", $lines[$i], $regs);
+ $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
+ } 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];
@@ -168,353 +431,249 @@ function sqUnWordWrap(&$body) {
$body .= "\n";
}
-
/**
- * Returns an array of email addresses.
- * Be cautious of "user@host.com"
+ * If $haystack is a full mailbox name and $needle is the mailbox
+ * separator character, returns the last part of the mailbox name.
+ *
+ * @param string haystack full mailbox name to search
+ * @param string needle the mailbox separator character
+ * @return string the last part of the mailbox name
+ * @since 1.0
*/
-function parseAddrs($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 $array;
-}
+function readShortMailboxName($haystack, $needle) {
-/**
- * Returns a line of comma separated email addresses from an array.
- */
-function getLineOfAddrs($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( $to_line, 0, -1 );
+ if ($needle == '') {
+ $elem = $haystack;
} else {
- $to_line = '';
- }
-
- return( $to_line );
-}
-
-function translateText(&$body, $wrap_at, $charset) {
- global $where, $what; // from searching
- global $color; // color theme
-
- require_once('../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("\t", ' ', $line);
-
- parseUrl ($line);
-
- $Quotes = 0;
- $pos = 0;
- while (1) {
- if ($line[$pos] == ' ') {
- $pos ++;
- } else if (strpos($line, '>', $pos) === $pos) {
- $pos += 4;
- $Quotes ++;
- } else {
- break;
- }
- }
-
- if ($Quotes > 1) {
- if (! isset($color[14])) {
- $color[14] = '#FF0000';
- }
- $line = '' . $line . '';
- } elseif ($Quotes) {
- if (! isset($color[13])) {
- $color[13] = '#800000';
- }
- $line = '' . $line . '';
+ $parts = explode($needle, $haystack);
+ $elem = array_pop($parts);
+ while ($elem == '' && count($parts)) {
+ $elem = array_pop($parts);
}
-
- $body_ary[$i] = $line;
- }
- $body = '
' . implode("\n", $body_ary) . ''; -} - -function find_mailbox_name ($mailbox) { - if (ereg(" *\"([^\r\n\"]*)\"[ \r\n]*$", $mailbox, $regs)) - return $regs[1]; - ereg(" *([^ \r\n\"]*)[ \r\n]*$",$mailbox,$regs); - return $regs[1]; - -} - -function php_self () { - global $PHP_SELF, $HTTP_SERVER_VARS; - - if (isset($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 ''; } + return( $elem ); } /** - * 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: + * get_location + * + * Determines the location to forward to, relative to your server. + * This is used in HTTP Location: redirects. * - * http://www.myhost.com/squirrelmail/src/login.php + * If set, it uses $config_location_base as the first part of the URL, + * specifically, the protocol, hostname and port parts. The path is + * always autodetected. + * + * @return string the base url for this SquirrelMail installation + * @since 1.0 */ 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, '/')); - + + global $imap_server_type, $config_location_base, + $is_secure_connection, $sq_ignore_http_x_forwarded_headers; + + /* Get the path, handle virtual directories */ + if(strpos(php_self(), '?')) { + $path = substr(php_self(), 0, strpos(php_self(), '?')); + } else { + $path = php_self(); + } + $path = substr($path, 0, strrpos($path, '/')); + + // proto+host+port are already set in config: + if ( !empty($config_location_base) ) { + return $config_location_base . $path ; + } + // we computed it before, get it from the session: + if ( sqgetGlobalVar('sq_base_url', $full_url, SQ_SESSION) ) { + return $full_url . $path; + } + // else: autodetect + /* 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']) && - $HTTP_SERVER_VARS['SERVER_PORT'] == 443)) { + if ($is_secure_connection) $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 = $HTTP_SERVER_VARS['SERVER_NAME']; + + /* Get the hostname from the Host header or server config. */ + if ($sq_ignore_http_x_forwarded_headers + || !sqgetGlobalVar('HTTP_X_FORWARDED_HOST', $host, SQ_SERVER) + || empty($host)) { + 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); + // Note: HTTP_X_FORWARDED_PROTO could be sent from the client and + // therefore possibly spoofed/hackable. Thus, SquirrelMail + // ignores such headers by default. The administrator + // can tell SM to use such header values by setting + // $sq_ignore_http_x_forwarded_headers to boolean FALSE + // in config/config.php or by using config/conf.pl. + global $sq_ignore_http_x_forwarded_headers; + if ($sq_ignore_http_x_forwarded_headers + || !sqgetGlobalVar('HTTP_X_FORWARDED_PROTO', $forwarded_proto, SQ_SERVER)) + $forwarded_proto = ''; + if (sqgetGlobalVar('SERVER_PORT', $server_port, SQ_SERVER)) { + if (($server_port != 80 && $proto == 'http://') || + ($server_port != 443 && $proto == 'https://' && + strcasecmp($forwarded_proto, 'https') !== 0)) { + $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') { + $port = ''; + } + /* Fallback is to omit the server name and use a relative */ /* URI, although this is not RFC 2616 compliant. */ - return ($host ? $proto . $host . $port . $path : $path); + $full_url = ($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. + * Get Message List URI + * + * @param string $mailbox Current mailbox name (unencoded/raw) + * @param string $startMessage The mailbox page offset + * @param string $what Any current search parameters (OPTIONAL; + * default empty string) + * + * @return string The message list URI + * + * @since 1.5.2 + * + */ +function get_message_list_uri($mailbox, $startMessage, $what='') { + + global $base_uri; + + $urlMailbox = urlencode($mailbox); + + $list_xtra = "?where=read_body.php&what=$what&mailbox=" . $urlMailbox. + "&startMessage=$startMessage"; + + return $base_uri .'src/right_main.php'. $list_xtra; +} + + +/** + * Encrypts password + * + * 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 $epad the encryption key + * @return string the base64-encoded encrypted password + * @since 1.0 */ function OneTimePadEncrypt ($string, $epad) { $pad = base64_decode($epad); + + if (strlen($pad)>0) { + // make sure that pad is longer than string + while (strlen($string)>strlen($pad)) { + $pad.=$pad; + } + } else { + // FIXME: what should we do when $epad is not base64 encoded or empty. + } + $encrypted = ''; for ($i = 0; $i < strlen ($string); $i++) { $encrypted .= chr (ord($string[$i]) ^ ord($pad[$i])); } - + return base64_encode($encrypted); } +/** + * Decrypts a password from the cookie + * + * Decrypts 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 $epad the encryption key from the session + * @return string the decrypted password + * @since 1.0 + */ function OneTimePadDecrypt ($string, $epad) { $pad = base64_decode($epad); + + if (strlen($pad)>0) { + // make sure that pad is longer than string + while (strlen($string)>strlen($pad)) { + $pad.=$pad; + } + } else { + // FIXME: what should we do when $epad is not base64 encoded or empty. + } + $encrypted = base64_decode ($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); + return $decrypted; } - /** - * 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. + * Creates encryption key + * + * Creates an encryption key for encrypting the password stored in the cookie. + * The encryption key itself is stored in the session. + * + * Pad must be longer or equal to encoded string length in 1.4.4/1.5.0 and older. + * @param int $length optional, length of the string to generate + * @return string the encryption key + * @since 1.0 */ -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 > $release) return false; - } - - return true; + return base64_encode($pad); } /** - * Returns a string showing the size of the message/attachment. - */ + * Returns a string showing a byte size figure in + * a more easily digested (readable) format + * + * @param int $bytes the size in bytes + * + * @return string The size in human readable format + * + * @since 1.0 + * + */ function show_readable_size($bytes) { $bytes /= 1024; - $type = 'k'; - + $type = _("KiB"); + if ($bytes / 1024 > 1) { $bytes /= 1024; - $type = 'm'; + $type = _("MiB"); } - + if ($bytes < 10) { $bytes *= 10; settype($bytes, 'integer'); @@ -522,19 +681,24 @@ function show_readable_size($bytes) { } else { settype($bytes, 'integer'); } - - return $bytes . ' ' . $type . ''; + + global $nbsp; + return $bytes . $nbsp . $type; } /** - * Generates a random string from the caracter set you pass in + * Generates a random string from the character 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 length 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 $chars + * @return string the random string + * @since 1.0 */ - function GenerateRandomString($size, $chars, $flags = 0) { if ($flags & 0x1) { $chars .= 'abcdefghijklmnopqrstuvwxyz'; @@ -545,64 +709,968 @@ function GenerateRandomString($size, $chars, $flags = 0) { if ($flags & 0x4) { $chars .= '0123456789'; } - + if (($size < 1) || (strlen($chars) < 1)) { return ''; } - - sq_mt_randomize(); // Initialize the random number generator - - $String = ""; + + $String = ''; + $j = strlen( $chars ) - 1; while (strlen($String) < $size) { - $String .= $chars[mt_rand(0, strlen($chars))]; + $String .= $chars{mt_rand(0, $j)}; } - + return $String; } -function quoteIMAP($str) { - return ereg_replace('(["\\])', '\\\\1', $str); +/** + * Escapes special characters for use in IMAP commands. + * + * @param string $str the string to escape + * @return string the escaped string + * @since 1.0.3 + */ +function quoteimap($str) { + return str_replace(array('\\', '"'), array('\\\\', '\\"'), $str); } /** - * Trims every element in the array + * Create compose link + * + * 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" + * @param string $target URL target, if any (since 1.4.3) + * @param string $accesskey The access key to be used, if any + * + * @return string a link to the compose page + * + * @since 1.4.2 */ -function TrimArray(&$array) { - foreach ($array as $k => $v) { - global $$k; - if (is_array($$k)) { - foreach ($$k as $k2 => $v2) { - $$k[$k2] = substr($v2, 1); - } +function makeComposeLink($url, $text = null, $target='', $accesskey='NONE') { + global $compose_new_win, $compose_width, + $compose_height, $oTemplate; + + if(!$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, $accesskey); + } + + // build the compose in new window link... + + + // if javascript is on, use onclick event to handle it + if(checkForJavascript()) { + sqgetGlobalVar('base_uri', $base_uri, SQ_SESSION); + $compuri = SM_BASE_URI.$url; + + return create_hyperlink('javascript:void(0)', $text, '', + "comp_in_new('$compuri','$compose_width','$compose_height')", + '', '', '', + ($accesskey == 'NONE' + ? array() + : array('accesskey' => $accesskey))); + } + + // otherwise, just open new window using regular HTML + return makeInternalLink($url, $text, '_blank', $accesskey); +} + +/** + * version of fwrite which checks for failure + * @param resource $fp + * @param string $string + * @return number of written bytes. false on failure + * @since 1.4.3 + */ +function sq_fwrite($fp, $string) { + // write to file + $count = @fwrite($fp,$string); + // the number of bytes written should be the length of the string + if($count != strlen($string)) { + return FALSE; + } + + return $count; +} + +/** + * sq_get_html_translation_table + * + * Returns the translation table used by sq_htmlentities() + * + * @param integer $table html translation table. Possible values (without quotes): + *