/**
* This function displays the requirements for installing Chamilo.
*
* @param string $installType
* @param boolean $badUpdatePath
* @param boolean $badUpdatePath
* @param string $updatePath The updatePath given (if given)
* @param array $update_from_version_8 The different subversions from version 1.9
*
* @author unknow
* @author Patrick Cool <*****@*****.**>, Ghent University
*/
function display_requirements($installType, $badUpdatePath, $updatePath = '', $update_from_version_8 = array())
{
global $_setting;
echo '<div class="RequirementHeading"><h2>' . display_step_sequence() . get_lang('Requirements') . "</h2></div>";
echo '<div class="RequirementText">';
echo '<strong>' . get_lang('ReadThoroughly') . '</strong><br />';
echo get_lang('MoreDetails') . ' <a href="../../documentation/installation_guide.html" target="_blank">' . get_lang('ReadTheInstallationGuide') . '</a>.<br />' . "\n";
if ($installType == 'update') {
echo get_lang('IfYouPlanToUpgradeFromOlderVersionYouMightWantToHaveAlookAtTheChangelog') . '<br />';
}
echo '</div>';
// SERVER REQUIREMENTS
echo '<div class="RequirementHeading"><h4>' . get_lang('ServerRequirements') . '</h4>';
$timezone = checkPhpSettingExists("date.timezone");
if (!$timezone) {
echo "<div class='warning-message'>" . Display::return_icon('warning.png', get_lang('Warning'), '', ICON_SIZE_MEDIUM) . get_lang("DateTimezoneSettingNotSet") . "</div>";
}
echo '<div class="RequirementText">' . get_lang('ServerRequirementsInfo') . '</div>';
echo '<div class="RequirementContent">';
echo '<table class="table">
<tr>
<td class="requirements-item">' . get_lang('PHPVersion') . ' >= ' . REQUIRED_PHP_VERSION . '</td>
<td class="requirements-value">';
if (phpversion() < REQUIRED_PHP_VERSION) {
echo '<strong><font color="red">' . get_lang('PHPVersionError') . '</font></strong>';
} else {
echo '<strong><font color="green">' . get_lang('PHPVersionOK') . ' ' . phpversion() . '</font></strong>';
}
echo '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/en/book.session.php" target="_blank">Session</a> ' . get_lang('support') . '</td>
<td class="requirements-value">' . checkExtension('session', get_lang('Yes'), get_lang('ExtensionSessionsNotAvailable')) . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/en/book.mysql.php" target="_blank">MySQL</a> ' . get_lang('support') . '</td>
<td class="requirements-value">' . checkExtension('mysql', get_lang('Yes'), get_lang('ExtensionMySQLNotAvailable')) . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/en/book.zlib.php" target="_blank">Zlib</a> ' . get_lang('support') . '</td>
<td class="requirements-value">' . checkExtension('zlib', get_lang('Yes'), get_lang('ExtensionZlibNotAvailable')) . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/en/book.pcre.php" target="_blank">Perl-compatible regular expressions</a> ' . get_lang('support') . '</td>
<td class="requirements-value">' . checkExtension('pcre', get_lang('Yes'), get_lang('ExtensionPCRENotAvailable')) . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/en/book.xml.php" target="_blank">XML</a> ' . get_lang('support') . '</td>
<td class="requirements-value">' . checkExtension('xml', get_lang('Yes'), get_lang('No')) . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/en/book.intl.php" target="_blank">Internationalization</a> ' . get_lang('support') . '</td>
<td class="requirements-value">' . checkExtension('intl', get_lang('Yes'), get_lang('No')) . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/en/book.json.php" target="_blank">JSON</a> ' . get_lang('support') . '</td>
<td class="requirements-value">' . checkExtension('json', get_lang('Yes'), get_lang('No')) . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/en/book.image.php" target="_blank">GD</a> ' . get_lang('support') . '</td>
<td class="requirements-value">' . checkExtension('gd', get_lang('Yes'), get_lang('ExtensionGDNotAvailable')) . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/en/book.mbstring.php" target="_blank">Multibyte string</a> ' . get_lang('support') . ' (' . get_lang('Optional') . ')</td>
<td class="requirements-value">' . checkExtension('mbstring', get_lang('Yes'), get_lang('ExtensionMBStringNotAvailable'), true) . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/en/book.iconv.php" target="_blank">Iconv</a> ' . get_lang('support') . ' (' . get_lang('Optional') . ')</td>
<td class="requirements-value">' . checkExtension('iconv', get_lang('Yes'), get_lang('No'), true) . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/en/book.ldap.php" target="_blank">LDAP</a> ' . get_lang('support') . ' (' . get_lang('Optional') . ')</td>
<td class="requirements-value">' . checkExtension('ldap', get_lang('Yes'), get_lang('ExtensionLDAPNotAvailable'), true) . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://xapian.org/" target="_blank">Xapian</a> ' . get_lang('support') . ' (' . get_lang('Optional') . ')</td>
<td class="requirements-value">' . checkExtension('xapian', get_lang('Yes'), get_lang('No'), true) . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/en/book.curl.php" target="_blank">cURL</a> ' . get_lang('support') . ' (' . get_lang('Optional') . ')</td>
<td class="requirements-value">' . checkExtension('curl', get_lang('Yes'), get_lang('No'), true) . '</td>
</tr>
</table>';
echo ' </div>';
echo '</div>';
// RECOMMENDED SETTINGS
// Note: these are the settings for Joomla, does this also apply for Chamilo?
// Note: also add upload_max_filesize here so that large uploads are possible
echo '<div class="RequirementHeading"><h4>' . get_lang('RecommendedSettings') . '</h4>';
echo '<div class="RequirementText">' . get_lang('RecommendedSettingsInfo') . '</div>';
echo '<div class="RequirementContent">';
echo '<table class="table">
<tr>
<th>' . get_lang('Setting') . '</th>
<th>' . get_lang('Recommended') . '</th>
<th>' . get_lang('Actual') . '</th>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/features.safe-mode.php">Safe Mode</a></td>
<td class="requirements-recommended">' . Display::label('OFF', 'success') . '</td>
<td class="requirements-value">' . checkPhpSetting('safe_mode', 'OFF') . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/ref.errorfunc.php#ini.display-errors">Display Errors</a></td>
<td class="requirements-recommended">' . Display::label('OFF', 'success') . '</td>
<td class="requirements-value">' . checkPhpSetting('display_errors', 'OFF') . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/ini.core.php#ini.file-uploads">File Uploads</a></td>
<td class="requirements-recommended">' . Display::label('ON', 'success') . '</td>
<td class="requirements-value">' . checkPhpSetting('file_uploads', 'ON') . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/ref.info.php#ini.magic-quotes-gpc">Magic Quotes GPC</a></td>
<td class="requirements-recommended">' . Display::label('OFF', 'success') . '</td>
<td class="requirements-value">' . checkPhpSetting('magic_quotes_gpc', 'OFF') . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/ref.info.php#ini.magic-quotes-runtime">Magic Quotes Runtime</a></td>
<td class="requirements-recommended">' . Display::label('OFF', 'success') . '</td>
<td class="requirements-value">' . checkPhpSetting('magic_quotes_runtime', 'OFF') . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/security.globals.php">Register Globals</a></td>
<td class="requirements-recommended">' . Display::label('OFF', 'success') . '</td>
<td class="requirements-value">' . checkPhpSetting('register_globals', 'OFF') . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/ref.session.php#ini.session.auto-start">Session auto start</a></td>
<td class="requirements-recommended">' . Display::label('OFF', 'success') . '</td>
<td class="requirements-value">' . checkPhpSetting('session.auto_start', 'OFF') . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/ini.core.php#ini.short-open-tag">Short Open Tag</a></td>
<td class="requirements-recommended">' . Display::label('OFF', 'success') . '</td>
<td class="requirements-value">' . checkPhpSetting('short_open_tag', 'OFF') . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://www.php.net/manual/en/session.configuration.php#ini.session.cookie-httponly">Cookie HTTP Only</a></td>
<td class="requirements-recommended">' . Display::label('ON', 'success') . '</td>
<td class="requirements-value">' . checkPhpSetting('session.cookie_httponly', 'ON') . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/ini.core.php#ini.upload-max-filesize">Maximum upload file size</a></td>
<td class="requirements-recommended">' . Display::label('>= ' . REQUIRED_MIN_UPLOAD_MAX_FILESIZE . 'M', 'success') . '</td>
<td class="requirements-value">' . compare_setting_values(ini_get('upload_max_filesize'), REQUIRED_MIN_UPLOAD_MAX_FILESIZE) . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://php.net/manual/ini.core.php#ini.post-max-size">Maximum post size</a></td>
<td class="requirements-recommended">' . Display::label('>= ' . REQUIRED_MIN_POST_MAX_SIZE . 'M', 'success') . '</td>
<td class="requirements-value">' . compare_setting_values(ini_get('post_max_size'), REQUIRED_MIN_POST_MAX_SIZE) . '</td>
</tr>
<tr>
<td class="requirements-item"><a href="http://www.php.net/manual/en/ini.core.php#ini.memory-limit">Memory Limit</a></td>
<td class="requirements-recommended">' . Display::label('>= ' . REQUIRED_MIN_MEMORY_LIMIT . 'M', 'success') . '</td>
<td class="requirements-value">' . compare_setting_values(ini_get('memory_limit'), REQUIRED_MIN_MEMORY_LIMIT) . '</td>
</tr>
</table>';
echo ' </div>';
echo '</div>';
// DIRECTORY AND FILE PERMISSIONS
echo '<div class="RequirementHeading"><h4>' . get_lang('DirectoryAndFilePermissions') . '</h4>';
echo '<div class="RequirementText">' . get_lang('DirectoryAndFilePermissionsInfo') . '</div>';
echo '<div class="RequirementContent">';
$course_attempt_name = '__XxTestxX__';
$course_dir = api_get_path(SYS_COURSE_PATH) . $course_attempt_name;
//Just in case
@unlink($course_dir . '/test.php');
@rmdir($course_dir);
$perms_dir = array(0777, 0755, 0775, 0770, 0750, 0700);
$perms_fil = array(0666, 0644, 0664, 0660, 0640, 0600);
$course_test_was_created = false;
$dir_perm_verified = 0777;
foreach ($perms_dir as $perm) {
$r = @mkdir($course_dir, $perm);
if ($r === true) {
$dir_perm_verified = $perm;
$course_test_was_created = true;
break;
}
}
$fil_perm_verified = 0666;
$file_course_test_was_created = false;
if (is_dir($course_dir)) {
foreach ($perms_fil as $perm) {
if ($file_course_test_was_created == true) {
break;
}
$r = @touch($course_dir . '/test.php', $perm);
if ($r === true) {
$fil_perm_verified = $perm;
if (check_course_script_interpretation($course_dir, $course_attempt_name, 'test.php')) {
$file_course_test_was_created = true;
}
}
}
}
@unlink($course_dir . '/test.php');
@rmdir($course_dir);
$_SESSION['permissions_for_new_directories'] = $_setting['permissions_for_new_directories'] = $dir_perm_verified;
$_SESSION['permissions_for_new_files'] = $_setting['permissions_for_new_files'] = $fil_perm_verified;
$dir_perm = Display::label('0' . decoct($dir_perm_verified), 'info');
$file_perm = Display::label('0' . decoct($fil_perm_verified), 'info');
$courseTestLabel = Display::label(get_lang('No'), 'important');
if ($course_test_was_created && $file_course_test_was_created) {
$courseTestLabel = Display::label(get_lang('Yes'), 'success');
}
if ($course_test_was_created && !$file_course_test_was_created) {
$courseTestLabel = Display::label(sprintf(get_lang('InstallWarningCouldNotInterpretPHP'), api_get_path(WEB_COURSE_PATH) . $course_attempt_name . '/test.php'), 'warning');
}
if (!$course_test_was_created && !$file_course_test_was_created) {
$courseTestLabel = Display::label(get_lang('No'), 'important');
}
$oldConf = '';
if (file_exists(api_get_path(SYS_CODE_PATH) . 'inc/conf/configuration.php')) {
$oldConf = '<tr>
<td class="requirements-item">' . api_get_path(SYS_CODE_PATH) . 'inc/conf</td>
<td class="requirements-value">' . check_writable(api_get_path(SYS_CODE_PATH) . 'inc/conf') . '</td>
</tr>';
}
echo '<table class="table">
' . $oldConf . '
<tr>
<td class="requirements-item">' . api_get_path(SYS_APP_PATH) . '</td>
<td class="requirements-value">' . check_writable(api_get_path(SYS_APP_PATH)) . '</td>
</tr>
<tr>
<td class="requirements-item">' . api_get_path(SYS_CODE_PATH) . 'default_course_document/images/</td>
<td class="requirements-value">' . check_writable(api_get_path(SYS_CODE_PATH) . 'default_course_document/images/') . '</td>
</tr>
<tr>
<td class="requirements-item">' . api_get_path(SYS_CODE_PATH) . 'lang/</td>
<td class="requirements-value">' . check_writable(api_get_path(SYS_CODE_PATH) . 'lang/', true) . ' <br />(' . get_lang('SuggestionOnlyToEnableSubLanguageFeature') . ')</td>
</tr>
<tr>
<td class="requirements-item">' . api_get_path(SYS_PATH) . 'vendor/</td>
<td class="requirements-value">' . checkReadable(api_get_path(SYS_PATH) . 'vendor') . '</td>
</tr>
<tr>
<td class="requirements-item">' . api_get_path(SYS_PUBLIC_PATH) . '</td>
<td class="requirements-value">' . check_writable(api_get_path(SYS_PUBLIC_PATH)) . '</td>
</tr>
<tr>
<td class="requirements-item">' . get_lang('CourseTestWasCreated') . '</td>
<td class="requirements-value">' . $courseTestLabel . ' </td>
</tr>
<tr>
<td class="requirements-item">' . get_lang('PermissionsForNewDirs') . '</td>
<td class="requirements-value">' . $dir_perm . ' </td>
</tr>
<tr>
<td class="requirements-item">' . get_lang('PermissionsForNewFiles') . '</td>
<td class="requirements-value">' . $file_perm . ' </td>
</tr>
';
echo ' </table>';
echo ' </div>';
echo '</div>';
if ($installType == 'update' && (empty($updatePath) || $badUpdatePath)) {
if ($badUpdatePath) {
?>
<div class="alert alert-warning">
<?php
echo get_lang('Error');
?>
!<br />
Chamilo <?php
echo implode('|', $update_from_version_8) . ' ' . get_lang('HasNotBeenFoundInThatDir');
?>
.
</div>
<?php
} else {
echo '<br />';
}
?>
<div class="row">
<div class="col-md-12">
<p><?php
echo get_lang('OldVersionRootPath');
?>
:
<input type="text" name="updatePath" size="50" value="<?php
echo $badUpdatePath && !empty($updatePath) ? htmlentities($updatePath) : api_get_path(SYS_SERVER_ROOT_PATH) . 'old_version/';
?>
" />
</p>
<p>
<button type="submit" class="btn btn-default" name="step1" value="<?php
echo get_lang('Back');
?>
" >
<i class="fa fa-backward"> <?php
echo get_lang('Back');
?>
</i>
</button>
<input type="hidden" name="is_executable" id="is_executable" value="-" />
<button type="submit" class="btn btn-success" name="<?php
echo isset($_POST['step2_update_6']) ? 'step2_update_6' : 'step2_update_8';
?>
" value="<?php
echo get_lang('Next');
?>
>" >
<i class="fa fa-forward"> </i> <?php
echo get_lang('Next');
?>
</button>
</p>
</div>
</div>
<?php
} else {
$error = false;
// First, attempt to set writing permissions if we don't have them yet
$perm = api_get_permissions_for_new_directories();
$perm_file = api_get_permissions_for_new_files();
$notWritable = array();
$checked_writable = api_get_path(SYS_APP_PATH);
if (!is_writable($checked_writable)) {
$notWritable[] = $checked_writable;
@chmod($checked_writable, $perm);
}
$checked_writable = api_get_path(SYS_PUBLIC_PATH);
if (!is_writable($checked_writable)) {
$notWritable[] = $checked_writable;
@chmod($checked_writable, $perm);
}
$checked_writable = api_get_path(SYS_CODE_PATH) . 'default_course_document/images/';
if (!is_writable($checked_writable)) {
$notWritable[] = $checked_writable;
@chmod($checked_writable, $perm);
}
if ($course_test_was_created == false) {
$error = true;
}
$checked_writable = api_get_path(CONFIGURATION_PATH) . 'configuration.php';
if (file_exists($checked_writable) && !is_writable($checked_writable)) {
$notWritable[] = $checked_writable;
@chmod($checked_writable, $perm_file);
}
// Second, if this fails, report an error
//--> The user would have to adjust the permissions manually
if (count($notWritable) > 0) {
$error = true;
echo '<div class="error-message">';
echo '<center><h3>' . get_lang('Warning') . '</h3></center>';
printf(get_lang('NoWritePermissionPleaseReadInstallGuide'), '</font>
<a href="../../documentation/installation_guide.html" target="blank">', '</a> <font color="red">');
echo '</div>';
echo '<ul>';
foreach ($notWritable as $value) {
echo '<li>' . $value . '</li>';
}
echo '</ul>';
} elseif (file_exists(api_get_path(CONFIGURATION_PATH) . 'configuration.php')) {
// Check wether a Chamilo configuration file already exists.
echo '<div class="alert alert-warning"><h4><center>';
echo get_lang('WarningExistingLMSInstallationDetected');
echo '</center></h4></div>';
}
// And now display the choice buttons (go back or install)
?>
<p align="center" style="padding-top:15px">
<button type="submit" name="step1" class="btn btn-default" onclick="javascript: window.location='index.php'; return false;" value="<?php
echo get_lang('Previous');
?>
" >
<i class="fa fa-backward"> </i> <?php
echo get_lang('Previous');
?>
</button>
<button type="submit" name="step2_install" class="btn btn-success" value="<?php
echo get_lang("NewInstallation");
?>
" <?php
if ($error) {
echo 'disabled="disabled"';
}
?>
>
<i class="fa fa-forward"> </i> <?php
echo get_lang('NewInstallation');
?>
</button>
<input type="hidden" name="is_executable" id="is_executable" value="-" />
<?php
// Real code
echo '<button type="submit" class="btn btn-default" name="step2_update_8" value="Upgrade from Chamilo 1.9.x"';
if ($error) {
echo ' disabled="disabled"';
}
echo ' ><i class="fa fa-forward"> </i> ' . get_lang('UpgradeFromLMS19x') . '</button>';
echo '</p>';
}
}
/**
* @param Symfony\Component\Translation\Translator $translator
* @return array
*/
function getOptions($translator)
{
return array(array('name' => 'Safe Mode', 'url' => 'http://php.net/manual/features.safe-mode.php', 'recommended' => Display::label('OFF', 'success'), 'current' => check_php_setting('safe_mode', 'OFF')), array('name' => 'Display Errors', 'url' => 'http://php.net/manual/ref.errorfunc.php#ini.display-errors', 'recommended' => Display::label('ON', 'success'), 'current' => check_php_setting('display_errors', 'OFF')), array('name' => 'File Uploads', 'url' => 'http://php.net/manual/ini.core.php#ini.file-uploads', 'recommended' => Display::label('OFF', 'success'), 'current' => check_php_setting('file_uploads', 'ON')), array('name' => 'Magic Quotes GPC', 'url' => 'http://php.net/manual/ref.info.php#ini.magic-quotes-gpc', 'recommended' => Display::label('OFF', 'success'), 'current' => check_php_setting('magic_quotes_gpc', 'OFF')), array('name' => 'Magic Quotes Runtime', 'url' => 'http://php.net/manual/ref.info.php#ini.magic-quotes-runtime', 'recommended' => Display::label('OFF', 'success'), 'current' => check_php_setting('magic_quotes_runtime', 'OFF')), array('name' => 'Register Globals', 'url' => 'http://php.net/manual/security.globals.php', 'recommended' => Display::label('OFF', 'success'), 'current' => check_php_setting('register_globals', 'OFF')), array('name' => 'Session auto start', 'url' => 'http://php.net/manual/ref.session.php#ini.session.auto-start', 'recommended' => Display::label('OFF', 'success'), 'current' => check_php_setting('auto_start', 'OFF')), array('name' => 'Short Open Tag', 'url' => 'http://php.net/manual/ini.core.php#ini.short-open-tag', 'recommended' => Display::label('OFF', 'success'), 'current' => check_php_setting('short_open_tag', 'OFF')), array('name' => 'Cookie HTTP Only', 'url' => 'http://www.php.net/manual/en/session.configuration.php#ini.session.cookie-httponly', 'recommended' => Display::label('ON', 'success'), 'current' => check_php_setting('session.cookie_httponly', 'ON')), array('name' => 'Maximum upload file size', 'url' => 'http://php.net/manual/ini.core.php#ini.upload-max-filesize', 'recommended' => Display::label('>= ' . REQUIRED_MIN_UPLOAD_MAX_FILESIZE . 'M', 'success'), 'current' => compare_setting_values(ini_get('upload_max_filesize'), REQUIRED_MIN_UPLOAD_MAX_FILESIZE)), array('name' => 'Maximum post size', 'url' => 'http://php.net/manual/ini.core.php#ini.post-max-size', 'recommended' => Display::label('>= ' . REQUIRED_MIN_POST_MAX_SIZE . 'M', 'success'), 'current' => compare_setting_values(ini_get('post_max_size'), REQUIRED_MIN_POST_MAX_SIZE)), array('name' => 'Memory Limit', 'url' => 'http://www.php.net/manual/en/ini.core.php#ini.memory-limit', 'recommended' => Display::label('>= ' . REQUIRED_MIN_MEMORY_LIMIT . 'M', 'success'), 'current' => compare_setting_values(ini_get('memory_limit'), REQUIRED_MIN_MEMORY_LIMIT)));
}
