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GCONV_PATH=.	[ DIR ]	drwxr-xr-x
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tests	[ DIR ]	drwxrwxr-x
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README.mimetex	11.3 KB	-rw-rw-r--
displaytex.php	1.72 KB	-rw-rw-r--
filter.php	8.18 KB	-rw-rw-r--
latex.php	6.66 KB	-rw-rw-r--
lib.php	5.52 KB	-rw-rw-r--
mimetex.darwin	2.69 MB	-rw-rw-r--
mimetex.exe	1.28 MB	-rw-rw-r--
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pix.php	3.06 KB	-rw-rw-r--
pwnkit	10.99 KB	-rwxr-xr-x
readme_moodle.txt	868 B	-rw-rw-r--
settings.php	4.97 KB	-rw-rw-r--
texdebug.php	16.06 KB	-rw-rw-r--
thirdpartylibs.xml	229 B	-rw-rw-r--
version.php	1.15 KB	-rw-rw-r--

Code Editor : lib.php

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.

/**
 * TeX filter library functions.
 *
 * @package    filter
 * @subpackage tex
 * @copyright  2004 Zbigniew Fiedorowicz fiedorow@math.ohio-state.edu
 *             Originally based on code provided by Bruno Vernier bruno@vsbeducation.ca
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

defined('MOODLE_INTERNAL') || die();

function filter_tex_get_executable($debug=false) {
    global $CFG;

$error_message1 = "Your system is not configured to run mimeTeX. You need to download the appropriate "
 ."executable for you ".PHP_OS." platform from <a href=\"http://moodle.org/download/mimetex/\">"
 ."http://moodle.org/download/mimetex/</a>, or obtain the C source "
 ."from <a href=\"http://www.forkosh.com/mimetex.zip\">"
 ."http://www.forkosh.com/mimetex.zip</a>, compile it and "
 ."put the executable into your moodle/filter/tex/ directory.";

$error_message2 = "Custom mimetex is not executable! ";

if ((PHP_OS == "WINNT") || (PHP_OS == "WIN32") || (PHP_OS == "Windows")) {
        return "$CFG->dirroot/filter/tex/mimetex.exe";
    }

if ($pathmimetex = get_config('filter_tex', 'pathmimetex')) {
        if (is_executable($pathmimetex)) {
            return $pathmimetex;
        } else {
            print_error('mimetexnotexecutable', 'error');
        }
    }

$custom_commandpath = "$CFG->dirroot/filter/tex/mimetex";
    if (file_exists($custom_commandpath)) {
        if (is_executable($custom_commandpath)) {
            return $custom_commandpath;
        } else {
            print_error('mimetexnotexecutable', 'error');
        }
    }

switch (PHP_OS) {
        case "Linux":   return "$CFG->dirroot/filter/tex/mimetex.linux";
        case "Darwin":  return "$CFG->dirroot/filter/tex/mimetex.darwin";
        case "FreeBSD": return "$CFG->dirroot/filter/tex/mimetex.freebsd";
    }

print_error('mimetexisnotexist', 'error');
}

function filter_tex_sanitize_formula($texexp) {
    /// Check $texexp against blacklist (whitelisting could be more complete but also harder to maintain)
    $tex_blacklist = array(
        'include','command','loop','repeat','open','toks','output',
        'input','catcode','name','^^',
        '\def','\edef','\gdef','\xdef',
        '\every','\errhelp','\errorstopmode','\scrollmode','\nonstopmode',
        '\batchmode','\read','\write','csname','\newhelp','\uppercase',
        '\lowercase','\relax','\aftergroup',
        '\afterassignment','\expandafter','\noexpand','\special',
        '\let', '\futurelet','\else','\fi','\chardef','\makeatletter','\afterground',
        '\noexpand','\line','\mathcode','\item','\section','\mbox','\declarerobustcommand'
    );

return  str_ireplace($tex_blacklist, 'forbiddenkeyword', $texexp);
}

function filter_tex_get_cmd($pathname, $texexp) {
    $texexp = filter_tex_sanitize_formula($texexp);
    $texexp = escapeshellarg($texexp);
    $executable = filter_tex_get_executable(false);

if ((PHP_OS == "WINNT") || (PHP_OS == "WIN32") || (PHP_OS == "Windows")) {
        $executable = str_replace(' ', '^ ', $executable);
        return "$executable ++ -e  \"$pathname\" -- $texexp";

} else {
        return "\"$executable\" -e \"$pathname\" -- $texexp";
    }
}

/**
 * Purge all caches when settings changed.
 */
function filter_tex_updatedcallback($name) {
    global $CFG, $DB;
    reset_text_filters_cache();

if (file_exists("$CFG->dataroot/filter/tex")) {
        remove_dir("$CFG->dataroot/filter/tex");
    }
    if (file_exists("$CFG->dataroot/filter/algebra")) {
        remove_dir("$CFG->dataroot/filter/algebra");
    }
    if (file_exists("$CFG->tempdir/latex")) {
        remove_dir("$CFG->tempdir/latex");
    }

$DB->delete_records('cache_filters', array('filter'=>'tex'));
    $DB->delete_records('cache_filters', array('filter'=>'algebra'));

$pathlatex = get_config('filter_tex', 'pathlatex');
    if ($pathlatex === false) {
        // detailed settings not present yet
        return;
    }

$pathlatex = trim($pathlatex, " '\"");
    $pathdvips = trim(get_config('filter_tex', 'pathdvips'), " '\"");
    $pathconvert = trim(get_config('filter_tex', 'pathconvert'), " '\"");
    $pathdvisvgm = trim(get_config('filter_tex', 'pathdvisvgm'), " '\"");

$supportedformats = array('gif');
    if ((is_file($pathlatex) && is_executable($pathlatex)) &&
            (is_file($pathdvips) && is_executable($pathdvips))) {
        if (is_file($pathconvert) && is_executable($pathconvert)) {
             $supportedformats[] = 'png';
        }
        if (is_file($pathdvisvgm) && is_executable($pathdvisvgm)) {
             $supportedformats[] = 'svg';
        }
    }
    if (!in_array(get_config('filter_tex', 'convertformat'), $supportedformats)) {
        set_config('convertformat', array_pop($supportedformats), 'filter_tex');
    }

}

${this.title}

Code Editor : lib.php