232912ec98
sq_is8bit can be used in decoding functions and read_body.php sq_mb_list_encodings provides replacement for mb_list_encodings
1077 lines
No EOL
33 KiB
PHP
1077 lines
No EOL
33 KiB
PHP
<?php
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/**
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* strings.php
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*
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* Copyright (c) 1999-2004 The SquirrelMail Project Team
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* Licensed under the GNU GPL. For full terms see the file COPYING.
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*
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* This code provides various string manipulation functions that are
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* used by the rest of the Squirrelmail code.
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*
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* @version $Id$
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* @package squirrelmail
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*/
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/**
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* SquirrelMail version number -- DO NOT CHANGE
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*/
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global $version;
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$version = '1.5.1 [CVS]';
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/**
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* SquirrelMail internal version number -- DO NOT CHANGE
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* $sm_internal_version = array (release, major, minor)
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*/
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global $SQM_INTERNAL_VERSION;
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$SQM_INTERNAL_VERSION = array(1,5,1);
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/**
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* There can be a circular issue with includes, where the $version string is
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* referenced by the include of global.php, etc. before it's defined.
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* For that reason, bring in global.php AFTER we define the version strings.
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*/
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require_once(SM_PATH . 'functions/global.php');
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/**
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* Appends citation markers to the string.
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* Also appends a trailing space.
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*
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* @author Justus Pendleton
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*
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* @param string str The string to append to
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* @param int citeLevel the number of markers to append
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* @return null
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*/
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function sqMakeCite (&$str, $citeLevel) {
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for ($i = 0; $i < $citeLevel; $i++) {
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$str .= '>';
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}
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if ($citeLevel != 0) {
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$str .= ' ';
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}
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}
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/**
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* Create a newline in the string, adding citation
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* markers to the newline as necessary.
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*
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* @author Justus Pendleton
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*
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* @param string str the string to make a newline in
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* @param int citeLevel the citation level the newline is at
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* @param int column starting column of the newline
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* @return null
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*/
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function sqMakeNewLine (&$str, $citeLevel, &$column) {
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$str .= "\n";
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$column = 0;
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if ($citeLevel > 0) {
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sqMakeCite ($str, $citeLevel);
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$column = $citeLevel + 1;
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} else {
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$column = 0;
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}
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}
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/**
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* Checks for spaces in strings - only used if PHP doesn't have native ctype support
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*
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* @author Tomas Kuliavas
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*
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* You might be able to rewrite the function by adding short evaluation form.
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*
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* possible problems:
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* - iso-2022-xx charsets - hex 20 might be part of other symbol. I might
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* be wrong. 0x20 is not used in iso-2022-jp. I haven't checked iso-2022-kr
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* and iso-2022-cn mappings.
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*
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* - no-break space ( ) - it is 8bit symbol, that depends on charset.
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* there are at least three different charset groups that have nbsp in
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* different places.
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*
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* I don't see any charset/nbsp options in php ctype either.
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*
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* @param string $string tested string
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* @return bool true when only whitespace symbols are present in test string
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*/
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function sm_ctype_space($string) {
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if ( preg_match('/^[\x09-\x0D]|^\x20/', $string) || $string=='') {
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return true;
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} else {
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return false;
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}
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}
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/**
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* Wraps text at $wrap characters. While sqWordWrap takes
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* a single line of text and wraps it, this function works
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* on the entire corpus at once, this allows it to be a little
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* bit smarter and when and how to wrap.
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*
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* @author Justus Pendleton
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*
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* @param string body the entire body of text
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* @param int wrap the maximum line length
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* @return string the wrapped text
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*/
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function &sqBodyWrap (&$body, $wrap) {
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//check for ctype support, and fake it if it doesn't exist
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if (!function_exists('ctype_space')) {
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function ctype_space ($string) {
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return sm_ctype_space($string);
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}
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}
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// the newly wrapped text
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$outString = '';
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// current column since the last newline in the outstring
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$outStringCol = 0;
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$length = strlen($body);
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// where we are in the original string
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$pos = 0;
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// the number of >>> citation markers we are currently at
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$citeLevel = 0;
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// the main loop, whenever we start a newline of input text
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// we start from here
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while ($pos < $length) {
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// we're at the beginning of a line, get the new cite level
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$newCiteLevel = 0;
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while (($pos < $length) && ($body{$pos} == '>')) {
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$newCiteLevel++;
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$pos++;
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// skip over any spaces interleaved among the cite markers
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while (($pos < $length) && ($body{$pos} == ' ')) {
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$pos++;
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}
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if ($pos >= $length) {
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break;
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}
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}
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// special case: if this is a blank line then maintain it
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// (i.e. try to preserve original paragraph breaks)
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// unless they occur at the very beginning of the text
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if (($body{$pos} == "\n" ) && (strlen($outString) != 0)) {
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$outStringLast = $outString{strlen($outString) - 1};
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if ($outStringLast != "\n") {
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$outString .= "\n";
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}
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sqMakeCite ($outString, $newCiteLevel);
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$outString .= "\n";
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$pos++;
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$outStringCol = 0;
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continue;
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}
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// if the cite level has changed, then start a new line
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// with the new cite level.
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if (($citeLevel != $newCiteLevel) && ($pos > ($newCiteLevel + 1)) && ($outStringCol != 0)) {
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sqMakeNewLine ($outString, 0, $outStringCol);
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}
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$citeLevel = $newCiteLevel;
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// prepend the quote level if necessary
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if ($outStringCol == 0) {
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sqMakeCite ($outString, $citeLevel);
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// if we added a citation then move the column
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// out by citelevel + 1 (the cite markers + the space)
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$outStringCol = $citeLevel + ($citeLevel ? 1 : 0);
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} else if ($outStringCol > $citeLevel) {
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// not a cite and we're not at the beginning of a line
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// in the output. add a space to separate the new text
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// from previous text.
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$outString .= ' ';
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$outStringCol++;
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}
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// find the next newline -- we don't want to go further than that
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$nextNewline = strpos ($body, "\n", $pos);
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if ($nextNewline === FALSE) {
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$nextNewline = $length;
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}
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// Don't wrap unquoted lines at all. For now the textarea
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// will work fine for this. Maybe revisit this later though
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// (for completeness more than anything else, I think)
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if ($citeLevel == 0) {
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$outString .= substr ($body, $pos, ($nextNewline - $pos));
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$outStringCol = $nextNewline - $pos;
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if ($nextNewline != $length) {
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sqMakeNewLine ($outString, 0, $outStringCol);
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}
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$pos = $nextNewline + 1;
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continue;
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}
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/**
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* Set this to false to stop appending short strings to previous lines
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*/
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$smartwrap = true;
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// inner loop, (obviously) handles wrapping up to
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// the next newline
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while ($pos < $nextNewline) {
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// skip over initial spaces
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while (($pos < $nextNewline) && (ctype_space ($body{$pos}))) {
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$pos++;
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}
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// if this is a short line then just append it and continue outer loop
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if (($outStringCol + $nextNewline - $pos) <= ($wrap - $citeLevel - 1) ) {
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// if this is the final line in the input string then include
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// any trailing newlines
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// echo substr($body,$pos,$wrap). "<br />";
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if (($nextNewline + 1 == $length) && ($body{$nextNewline} == "\n")) {
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$nextNewline++;
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}
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// trim trailing spaces
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$lastRealChar = $nextNewline;
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while (($lastRealChar > $pos && $lastRealChar < $length) && (ctype_space ($body{$lastRealChar}))) {
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$lastRealChar--;
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}
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// decide if appending the short string is what we want
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if (($nextNewline < $length && $body{$nextNewline} == "\n") &&
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isset($lastRealChar)) {
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$mypos = $pos;
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//check the first word:
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while (($mypos < $length) && ($body{$mypos} == '>')) {
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$mypos++;
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// skip over any spaces interleaved among the cite markers
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$oldpos = $mypos;
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while (($mypos < $length) && ($body{$mypos} == ' ')) {
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$mypos++;
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}
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}
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/*
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$ldnspacecnt = 0;
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if ($mypos == $nextNewline+1) {
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while (($mypos < $length) && ($body{$mypos} == ' ')) {
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$ldnspacecnt++;
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}
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}
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*/
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$firstword = substr($body,$mypos,strpos($body,' ',$mypos) - $mypos);
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//if ($dowrap || $ldnspacecnt > 1 || ($firstword && (
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if (!$smartwrap || $firstword && (
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$firstword{0} == '-' ||
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$firstword{0} == '+' ||
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$firstword{0} == '*' ||
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$firstword{0} == strtoupper($firstword{0}) ||
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strpos($firstword,':'))) {
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$outString .= substr($body,$pos,($lastRealChar - $pos+1));
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$outStringCol += ($lastRealChar - $pos);
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sqMakeNewLine($outString,$citeLevel,$outStringCol);
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$nextNewline++;
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$pos = $nextNewline;
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$outStringCol--;
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continue;
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}
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}
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$outString .= substr ($body, $pos, ($lastRealChar - $pos + 1));
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$outStringCol += ($lastRealChar - $pos);
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$pos = $nextNewline + 1;
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continue;
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}
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$eol = $pos + $wrap - $citeLevel - $outStringCol;
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// eol is the tentative end of line.
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// look backwards for there for a whitespace to break at.
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// if it's already less than our current position then
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// our current line is already too long, break immediately
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// and restart outer loop
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if ($eol <= $pos) {
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sqMakeNewLine ($outString, $citeLevel, $outStringCol);
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continue;
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}
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// start looking backwards for whitespace to break at.
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$breakPoint = $eol;
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while (($breakPoint > $pos) && (! ctype_space ($body{$breakPoint}))) {
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$breakPoint--;
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}
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// if we didn't find a breakpoint by looking backward then we
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// need to figure out what to do about that
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if ($breakPoint == $pos) {
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// if we are not at the beginning then end this line
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// and start a new loop
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if ($outStringCol > ($citeLevel + 1)) {
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sqMakeNewLine ($outString, $citeLevel, $outStringCol);
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continue;
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} else {
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// just hard break here. most likely we are breaking
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// a really long URL. could also try searching
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// forward for a break point, which is what Mozilla
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// does. don't bother for now.
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$breakPoint = $eol;
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}
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}
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// special case: maybe we should have wrapped last
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// time. if the first breakpoint here makes the
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// current line too long and there is already text on
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// the current line, break and loop again if at
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// beginning of current line, don't force break
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$SLOP = 6;
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if ((($outStringCol + ($breakPoint - $pos)) > ($wrap + $SLOP)) && ($outStringCol > ($citeLevel + 1))) {
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sqMakeNewLine ($outString, $citeLevel, $outStringCol);
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continue;
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}
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// skip newlines or whitespace at the beginning of the string
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$substring = substr ($body, $pos, ($breakPoint - $pos));
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$substring = rtrim ($substring); // do rtrim and ctype_space have the same ideas about whitespace?
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$outString .= $substring;
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$outStringCol += strlen ($substring);
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// advance past the whitespace which caused the wrap
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$pos = $breakPoint;
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while (($pos < $length) && (ctype_space ($body{$pos}))) {
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$pos++;
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}
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if ($pos < $length) {
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sqMakeNewLine ($outString, $citeLevel, $outStringCol);
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}
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}
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}
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return $outString;
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}
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/**
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* Wraps text at $wrap characters
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*
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* Has a problem with special HTML characters, so call this before
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* you do character translation.
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*
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* Specifically, ' comes up as 5 characters instead of 1.
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* This should not add newlines to the end of lines.
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*
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* @param string line the line of text to wrap, by ref
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* @param int wrap the maximum line lenth
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* @return void
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*/
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function sqWordWrap(&$line, $wrap) {
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global $languages, $squirrelmail_language;
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if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
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function_exists($languages[$squirrelmail_language]['XTRA_CODE'] . '_wordwrap')) {
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if (mb_detect_encoding($line) != 'ASCII') {
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$line = call_user_func($languages[$squirrelmail_language]['XTRA_CODE'] . '_wordwrap', $line, $wrap);
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return;
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}
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}
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ereg("^([\t >]*)([^\t >].*)?$", $line, $regs);
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$beginning_spaces = $regs[1];
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if (isset($regs[2])) {
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$words = explode(' ', $regs[2]);
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} else {
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$words = '';
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}
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$i = 0;
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$line = $beginning_spaces;
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while ($i < count($words)) {
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/* Force one word to be on a line (minimum) */
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$line .= $words[$i];
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$line_len = strlen($beginning_spaces) + strlen($words[$i]) + 2;
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if (isset($words[$i + 1]))
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$line_len += strlen($words[$i + 1]);
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$i ++;
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/* Add more words (as long as they fit) */
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while ($line_len < $wrap && $i < count($words)) {
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$line .= ' ' . $words[$i];
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$i++;
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if (isset($words[$i]))
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$line_len += strlen($words[$i]) + 1;
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else
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$line_len += 1;
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}
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/* Skip spaces if they are the first thing on a continued line */
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while (!isset($words[$i]) && $i < count($words)) {
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$i ++;
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}
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/* Go to the next line if we have more to process */
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if ($i < count($words)) {
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$line .= "\n";
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}
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}
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}
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/**
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* Does the opposite of sqWordWrap()
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* @param string body the text to un-wordwrap
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* @return void
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*/
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function sqUnWordWrap(&$body) {
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global $squirrelmail_language;
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if ($squirrelmail_language == 'ja_JP') {
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return;
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}
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$lines = explode("\n", $body);
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$body = '';
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$PreviousSpaces = '';
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$cnt = count($lines);
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for ($i = 0; $i < $cnt; $i ++) {
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preg_match("/^([\t >]*)([^\t >].*)?$/", $lines[$i], $regs);
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$CurrentSpaces = $regs[1];
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if (isset($regs[2])) {
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$CurrentRest = $regs[2];
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} else {
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$CurrentRest = '';
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}
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if ($i == 0) {
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$PreviousSpaces = $CurrentSpaces;
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$body = $lines[$i];
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} else if (($PreviousSpaces == $CurrentSpaces) /* Do the beginnings match */
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&& (strlen($lines[$i - 1]) > 65) /* Over 65 characters long */
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&& strlen($CurrentRest)) { /* and there's a line to continue with */
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$body .= ' ' . $CurrentRest;
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} else {
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$body .= "\n" . $lines[$i];
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$PreviousSpaces = $CurrentSpaces;
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}
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}
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$body .= "\n";
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}
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/**
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* If $haystack is a full mailbox name and $needle is the mailbox
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* separator character, returns the last part of the mailbox name.
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*
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* @param string haystack full mailbox name to search
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* @param string needle the mailbox separator character
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* @return string the last part of the mailbox name
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*/
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function readShortMailboxName($haystack, $needle) {
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if ($needle == '') {
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$elem = $haystack;
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} else {
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$parts = explode($needle, $haystack);
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$elem = array_pop($parts);
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while ($elem == '' && count($parts)) {
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$elem = array_pop($parts);
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}
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}
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return( $elem );
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}
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/**
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* php_self
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*
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* Creates an URL for the page calling this function, using either the PHP global
|
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* REQUEST_URI, or the PHP global PHP_SELF with QUERY_STRING added.
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*
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* @return string the complete url for this page
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*/
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function php_self () {
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if ( sqgetGlobalVar('REQUEST_URI', $req_uri, SQ_SERVER) && !empty($req_uri) ) {
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return $req_uri;
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}
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if ( sqgetGlobalVar('PHP_SELF', $php_self, SQ_SERVER) && !empty($php_self) ) {
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// need to add query string to end of PHP_SELF to match REQUEST_URI
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//
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if ( sqgetGlobalVar('QUERY_STRING', $query_string, SQ_SERVER) && !empty($query_string) ) {
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$php_self .= '?' . $query_string;
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}
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return $php_self;
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}
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return '';
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}
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/**
|
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* get_location
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*
|
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* Determines the location to forward to, relative to your server.
|
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* This is used in HTTP Location: redirects.
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* If this doesnt work correctly for you (although it should), you can
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* remove all this code except the last two lines, and have it return
|
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* the right URL for your site, something like:
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*
|
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* http://www.example.com/squirrelmail/
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*
|
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* @return string the base url for this SquirrelMail installation
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*/
|
|
function get_location () {
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global $imap_server_type;
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|
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/* 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, '/'));
|
|
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 = '';
|
|
}
|
|
}
|
|
|
|
$port = '';
|
|
if (! strstr($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 . $path;
|
|
}
|
|
|
|
|
|
/**
|
|
* Encrypts password
|
|
*
|
|
* These functions are used to encrypt the password before it is
|
|
* stored in a cookie. The encryption key is generated by
|
|
* OneTimePadCreate();
|
|
*
|
|
* @param string string the (password)string to encrypt
|
|
* @param string epad the encryption key
|
|
* @return string the base64-encoded encrypted password
|
|
*/
|
|
function OneTimePadEncrypt ($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);
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
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 $decrypted;
|
|
}
|
|
|
|
|
|
/**
|
|
* Randomizes the mt_rand() function.
|
|
*
|
|
* Toss this in strings or integers and it will seed the generator
|
|
* appropriately. With strings, it is better to get them long.
|
|
* Use md5() to lengthen smaller strings.
|
|
*
|
|
* @param mixed val a value to seed the random number generator
|
|
* @return void
|
|
*/
|
|
function sq_mt_seed($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)) {
|
|
$Val = crc32($Val);
|
|
}
|
|
|
|
if ($Val < 0) {
|
|
$Val *= -1;
|
|
}
|
|
|
|
if ($Val = 0) {
|
|
return;
|
|
}
|
|
|
|
mt_srand(($Val ^ mt_rand(0, $Max)) & $Max);
|
|
}
|
|
|
|
|
|
/**
|
|
* Init random number generator
|
|
*
|
|
* 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() {
|
|
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));
|
|
}
|
|
|
|
$randomized = 1;
|
|
}
|
|
|
|
/**
|
|
* Creates encryption key
|
|
*
|
|
* Creates an encryption key for encrypting the password stored in the cookie.
|
|
* The encryption key itself is stored in the session.
|
|
*
|
|
* @param int length optional, length of the string to generate
|
|
* @return string the encryption key
|
|
*/
|
|
function OneTimePadCreate ($length=100) {
|
|
sq_mt_randomize();
|
|
|
|
$pad = '';
|
|
for ($i = 0; $i < $length; $i++) {
|
|
$pad .= chr(mt_rand(0,255));
|
|
}
|
|
|
|
return base64_encode($pad);
|
|
}
|
|
|
|
/**
|
|
* 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;
|
|
$type = 'M';
|
|
}
|
|
|
|
if ($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
|
|
*
|
|
* @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 & 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 $String;
|
|
}
|
|
|
|
/**
|
|
* Escapes special characters for use in IMAP commands.
|
|
*
|
|
* @param string the string to escape
|
|
* @return string the escaped string
|
|
*/
|
|
function quoteimap($str) {
|
|
return preg_replace("/([\"\\\\])/", "\\\\$1", $str);
|
|
}
|
|
|
|
/**
|
|
* Trims array
|
|
*
|
|
* Trims every element in the array, ie. remove the first char of each element
|
|
* @param array array the array to trim
|
|
*/
|
|
function TrimArray(&$array) {
|
|
foreach ($array as $k => $v) {
|
|
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;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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"
|
|
* @return string a link to the compose page
|
|
*/
|
|
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, $text, '_blank');
|
|
|
|
}
|
|
|
|
/**
|
|
* Print variable
|
|
*
|
|
* sm_print_r($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>';
|
|
}
|
|
|
|
/**
|
|
* version of fwrite which checks for failure
|
|
*/
|
|
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):
|
|
* <ul>
|
|
* <li>HTML_ENTITIES - full html entities table defined by charset</li>
|
|
* <li>HTML_SPECIALCHARS - html special characters table</li>
|
|
* </ul>
|
|
* @param integer $quote_style quote encoding style. Possible values (without quotes):
|
|
* <ul>
|
|
* <li>ENT_COMPAT - (default) encode double quotes</li>
|
|
* <li>ENT_NOQUOTES - don't encode double or single quotes</li>
|
|
* <li>ENT_QUOTES - encode double and single quotes</li>
|
|
* </ul>
|
|
* @param string $charset charset used for encoding. default to us-ascii, 'auto' uses $default_charset global value.
|
|
* @return array html translation array
|
|
*/
|
|
function sq_get_html_translation_table($table,$quote_style=ENT_COMPAT,$charset='us-ascii') {
|
|
global $default_charset;
|
|
|
|
if ($table == HTML_SPECIALCHARS) $charset='us-ascii';
|
|
|
|
// Start array with ampersand
|
|
$sq_html_ent_table = array( "&" => '&' );
|
|
|
|
// < and >
|
|
$sq_html_ent_table = array_merge($sq_html_ent_table,
|
|
array("<" => '<',
|
|
">" => '>')
|
|
);
|
|
// double quotes
|
|
if ($quote_style == ENT_COMPAT)
|
|
$sq_html_ent_table = array_merge($sq_html_ent_table,
|
|
array("\"" => '"')
|
|
);
|
|
|
|
// double and single quotes
|
|
if ($quote_style == ENT_QUOTES)
|
|
$sq_html_ent_table = array_merge($sq_html_ent_table,
|
|
array("\"" => '"',
|
|
"'" => ''')
|
|
);
|
|
|
|
if ($charset=='auto') $charset=$default_charset;
|
|
|
|
// add entities that depend on charset
|
|
switch($charset){
|
|
case 'iso-8859-1':
|
|
include_once(SM_PATH . 'functions/htmlentities/iso-8859-1.php');
|
|
break;
|
|
case 'utf-8':
|
|
include_once(SM_PATH . 'functions/htmlentities/utf-8.php');
|
|
break;
|
|
case 'us-ascii':
|
|
default:
|
|
break;
|
|
}
|
|
// return table
|
|
return $sq_html_ent_table;
|
|
}
|
|
|
|
/**
|
|
* sq_htmlentities
|
|
*
|
|
* Convert all applicable characters to HTML entities.
|
|
* Minimal php requirement - v.4.0.5
|
|
*
|
|
* @param string $string string that has to be sanitized
|
|
* @param integer $quote_style quote encoding style. Possible values (without quotes):
|
|
* <ul>
|
|
* <li>ENT_COMPAT - (default) encode double quotes</li>
|
|
* <li>ENT_NOQUOTES - don't encode double or single quotes</li>
|
|
* <li>ENT_QUOTES - encode double and single quotes</li>
|
|
* </ul>
|
|
* @param string $charset charset used for encoding. defaults to 'us-ascii', 'auto' uses $default_charset global value.
|
|
* @return string sanitized string
|
|
*/
|
|
function sq_htmlentities($string,$quote_style=ENT_COMPAT,$charset='us-ascii') {
|
|
// get translation table
|
|
$sq_html_ent_table=sq_get_html_translation_table(HTML_ENTITIES,$quote_style,$charset);
|
|
// convert characters
|
|
return str_replace(array_keys($sq_html_ent_table),array_values($sq_html_ent_table),$string);
|
|
}
|
|
|
|
/**
|
|
* Tests if string contains 8bit symbols.
|
|
*
|
|
* If charset is not set, function defaults to default_charset.
|
|
* $default_charset global must be set correctly if $charset is
|
|
* not used.
|
|
* @param string $string tested string
|
|
* @param string $charset charset used in a string
|
|
* @return bool true if 8bit symbols are detected
|
|
* @since 1.5.1
|
|
*/
|
|
function sq_is8bit($string,$charset='') {
|
|
global $default_charset;
|
|
|
|
if ($charset=='') $charset=$default_charset;
|
|
|
|
/**
|
|
* Don't use \240 in ranges. Sometimes RH 7.2 doesn't like it.
|
|
* Don't use \200-\237 for iso-8859-x charsets. This ranges
|
|
* stores control symbols in those charsets.
|
|
* Use preg_match instead of ereg in order to avoid problems
|
|
* with mbstring overloading
|
|
*/
|
|
if (preg_match("/^iso-8859/i",$charset)) {
|
|
$needle='/\240|[\241-\377]/';
|
|
} else {
|
|
$needle='/[\200-\237]|\240|[\241-\377]/';
|
|
}
|
|
return preg_match("$needle",$string);
|
|
}
|
|
|
|
/**
|
|
* Replacement of mb_list_encodings function
|
|
*
|
|
* This function provides replacement for function that is available only
|
|
* in php 5.x. Function does not test all mbstring encodings. Only the ones
|
|
* that might be used in SM translations.
|
|
*
|
|
* Supported arrays are stored in session in order to reduce number of
|
|
* mb_internal_encoding function calls.
|
|
*
|
|
* If you want to test all mbstring encodings - fill $list_of_encodings
|
|
* array.
|
|
* @return array list of encodings supported by mbstring
|
|
* @since 1.5.1
|
|
*/
|
|
function sq_mb_list_encodings() {
|
|
if (! function_exists('mb_internal_encoding'))
|
|
return array();
|
|
|
|
// don't try to test encodings, if they are already stored in session
|
|
if (sqgetGlobalVar('mb_supported_encodings',$mb_supported_encodings,SQ_SESSION))
|
|
return $mb_supported_encodings;
|
|
|
|
// save original encoding
|
|
$orig_encoding=mb_internal_encoding();
|
|
|
|
$list_of_encoding=array(
|
|
'pass',
|
|
'auto',
|
|
'ascii',
|
|
'jis',
|
|
'utf-8',
|
|
'sjis',
|
|
'euc-jp',
|
|
'iso-8859-1',
|
|
'iso-8859-2',
|
|
'iso-8859-7',
|
|
'iso-8859-9',
|
|
'iso-8859-15',
|
|
'koi8-r',
|
|
'koi8-u',
|
|
'big5',
|
|
'gb2312',
|
|
'windows-1251',
|
|
'windows-1255',
|
|
'windows-1256',
|
|
'tis-620',
|
|
'iso-2022-jp',
|
|
'euc-kr',
|
|
'utf7-imap');
|
|
|
|
$supported_encodings=array();
|
|
|
|
foreach ($list_of_encoding as $encoding) {
|
|
// try setting encodings. suppress warning messages
|
|
if (@mb_internal_encoding($encoding))
|
|
$supported_encodings[]=$encoding;
|
|
}
|
|
|
|
// restore original encoding
|
|
mb_internal_encoding($orig_encoding);
|
|
|
|
// register list in session
|
|
sqsession_register($supported_encodings,'mb_supported_encodings');
|
|
|
|
return $supported_encodings;
|
|
}
|
|
|
|
$PHP_SELF = php_self();
|
|
?>
|