Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/install/install_functions.inc.php

1150 lines
42 KiB

<?php
/**
* This function prints class=active_step $current_step=$param
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
*/
function step_active($param)
{
global $current_step;
if ($param==$current_step)
{
echo 'class="current_step" ';
}
}
/**
* This function displays the Step X of Y -
* @return string String that says 'Step X of Y' with the right values
*/
function display_step_sequence()
{
global $current_step;
global $total_steps;
return get_lang('Step'.$current_step).' &ndash; ';
}
/**
* This function checks if a php extension exists or not and returns an HTML
* status string.
*
* @param string Name of the PHP extension to be checked
* @param string Text to show when extension is available (defaults to 'OK')
* @param string Text to show when extension is available (defaults to 'KO')
* @param boolean Whether this extension is optional (in this case show unavailable text in orange rather than red)
* @return string HTML string reporting the status of this extension. Language-aware.
* @author Christophe Gesche
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
* @author Yannick Warnier <yannick.warnier@dokeos.com>
* @version Dokeos 1.8.1, May 2007
*/
function check_extension($extension_name,$return_success='OK',$return_failure='KO',$optional=false)
{
if(extension_loaded($extension_name))
{
return '<strong><font color="green">'.$return_success.'</font></strong>';
}
else
{
if($optional===true)
{
return '<strong><font color="#ff9900">'.$return_failure.'</font></strong>';
}
else
{
return '<strong><font color="red">'.$return_failure.'</font></strong>';
}
}
}
/**
* This function checks whether a php setting matches the recommended value
*
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
* @version Dokeos 1.8, august 2006
*/
function check_php_setting($php_setting, $recommended_value, $return_success=false, $return_failure=false)
{
$current_php_value = get_php_setting($php_setting);
if ( $current_php_value== $recommended_value)
{
return '<strong><font color="green">'.$current_php_value.' '.$return_success.'</font></strong>';
}
else
{
return '<strong><font color="red">'.$current_php_value.' '.$return_failure.'</font></strong>';
}
}
/**
* Enter description here...
*
* @param string $val a php ini value
* @return boolean: ON or OFF
* @author Joomla <http://www.joomla.org>
*/
function get_php_setting($val) {
$r = (ini_get($val) == '1' ? 1 : 0);
return $r ? 'ON' : 'OFF';
}
/**
* This function checks if the given folder is writable
*/
function check_writable($folder)
{
if (is_writable('../'.$folder))
{
return '<strong><font color="green">'.get_lang('Writable').'</font></strong>';
}
else
{
return '<strong><font color="red">'.get_lang('NotWritable').'</font></strong>';
}
}
/**
* this function returns a string "FALSE" or "TRUE" according to the variable in parameter
*
* @param integer $var the variable to convert
* @return string the string "FALSE" or "TRUE"
* @author Christophe Gesche
*/
function trueFalse($var)
{
return $var?'true':'false';
}
/**
* This function is similar to the core file() function, except that it
* works with line endings in Windows (which is not the case of file())
* @param string File path
* @return array The lines of the file returned as an array
*/
function file_to_array($filename)
{
$fp = fopen($filename, "rb");
$buffer = fread($fp, filesize($filename));
fclose($fp);
$result = explode('<br />',nl2br($buffer));
return $result;
}
/**
* This function returns the value of a parameter from the configuration file
*
* WARNING - this function relies heavily on global variables $updateFromConfigFile
* and $configFile, and also changes these globals. This can be rewritten.
*
* @param string $param the parameter of which the value is returned
* @param string If we want to give the path rather than take it from POST
* @return string the value of the parameter
* @author Olivier Brouckaert
*/
function get_config_param($param,$updatePath='')
{
global $configFile, $updateFromConfigFile;
//look if we already have the queried param
if(is_array($configFile) && isset($configFile[$param]))
{
return $configFile[$param];
}
if(empty($updatePath) && !empty($_POST['updatePath']))
{
$updatePath = $_POST['updatePath'];
}
$updatePath = realpath($updatePath).'/';
$updateFromInstalledVersionFile = '';
if(empty($updateFromConfigFile)) //if update from previous install was requested
{
//try to recover old config file from dokeos 1.8.x
if(file_exists($updatePath.'main/inc/conf/configuration.php'))
{
$updateFromConfigFile='main/inc/conf/configuration.php';
}
elseif(file_exists($updatePath.'claroline/inc/conf/claro_main.conf.php'))
{
$updateFromConfigFile='claroline/inc/conf/claro_main.conf.php';
}
//give up recovering
else
{
error_log('Could not find config file in '.$updatePath.' in get_config_param()',0);
return null;
}
}
if(file_exists($updatePath.'main/inc/installedVersion.inc.php'))
{
$updateFromInstalledVersionFile = $updatePath.'main/inc/installedVersion.inc.php';
}
//the param was not found in global vars, so look into the old config file
elseif(file_exists($updatePath.$updateFromConfigFile))
{
//make sure the installedVersion file is read first so it is overwritten
//by the config file if the config file contains the version (from 1.8.4)
$temp2 = array();
if(file_exists($updatePath.$updateFromInstalledVersionFile))
{
$temp2 = file_to_array($updatePath.$updateFromInstalledVersionFile);
}
$configFile=array();
$temp=file_to_array($updatePath.$updateFromConfigFile);
$temp = array_merge($temp,$temp2);
$val='';
//parse the config file (TODO clarify why it has to be so complicated)
foreach($temp as $enreg)
{
if(strstr($enreg,'='))
{
$enreg=explode('=',$enreg);
$enreg[0] = trim($enreg[0]);
if($enreg[0][0] == '$')
{
list($enreg[1])=explode(' //',$enreg[1]);
$enreg[0]=trim(str_replace('$','',$enreg[0]));
$enreg[1]=str_replace('\"','"',ereg_replace('(^"|"$)','',substr(trim($enreg[1]),0,-1)));
$enreg[1]=str_replace('\'','"',ereg_replace('(^\'|\'$)','',$enreg[1]));
if(strtolower($enreg[1]) == 'true')
{
$enreg[1]=1;
}
if(strtolower($enreg[1]) == 'false')
{
$enreg[1]=0;
}
else
{
$implode_string=' ';
if(!strstr($enreg[1],'." ".') && strstr($enreg[1],'.$'))
{
$enreg[1]=str_replace('.$','." ".$',$enreg[1]);
$implode_string='';
}
$tmp=explode('." ".',$enreg[1]);
foreach($tmp as $tmp_key=>$tmp_val)
{
if(eregi('^\$[a-z_][a-z0-9_]*$',$tmp_val))
{
$tmp[$tmp_key]=get_config_param(str_replace('$','',$tmp_val));
}
}
$enreg[1]=implode($implode_string,$tmp);
}
$configFile[$enreg[0]]=$enreg[1];
$a=explode("'",$enreg[0]);
$key_tmp=$a[1];
if($key_tmp== $param)
{
$val=$enreg[1];
}
}
}
}
return $val;
}
else
{
error_log('Config array could not be found in get_config_param()',0);
return null;
}
}
/**
* Get the config param from the database. If not found, return null
* @param string DB Host
* @param string DB login
* @param string DB pass
* @param string DB name
* @param string Name of param we want
* @return mixed The parameter value or null if not found
*/
function get_config_param_from_db($host,$login,$pass,$db_name,$param='')
{
$mydb = mysql_connect($host,$login,$pass);
$myconnect = mysql_select_db($db_name);
$sql = "SELECT * FROM settings_current WHERE variable = '$param'";
$res = mysql_query($sql);
if($res===false){return null;}
if(mysql_num_rows($res)>0)
{
$row = mysql_fetch_array($res);
$value = $row['selected_value'];
return $value;
}
return null;
}
/**
* Return a list of language directories.
* @todo function does not belong here, move to code library,
* also see infocours.php which contains similar function
*/
function get_language_folder_list($dirname)
{
if ($dirname[strlen($dirname)-1] != '/') $dirname .= '/';
$handle = opendir($dirname);
$language_list = array();
while ($entries = readdir($handle))
{
if ($entries=='.' || $entries=='..' || $entries=='CVS' || $entries == '.svn') continue;
if (is_dir($dirname.$entries))
{
$language_list[] = $entries;
}
}
closedir($handle);
return $language_list;
}
/*
==============================================================================
DISPLAY FUNCTIONS
==============================================================================
*/
/**
* Displays a form (drop down menu) so the user can select
* his/her preferred language.
*/
function display_language_selection_box()
{
//get language list
$dirname = '../lang/';
$language_list = get_language_folder_list($dirname);
sort($language_list);
//Reduce the number of languages shown to only show those with higher than 90% translation in DLTT
//This option can be easily removed later on. The aim is to test people response to less choice
//$language_to_display = $language_list;
$language_to_display = array('brazilian','dutch','english','french','german','hungarian','italian','portuguese','slovenian','spanish');
//display
echo "\t\t<select name=\"language_list\">\n";
$default_language = 'english';
foreach ($language_to_display as $key => $value)
{
if ($value == $default_language) $option_end = ' selected="selected">';
else $option_end = '>';
echo "\t\t\t<option value=\"$value\"$option_end";
echo ucfirst($value);
echo "</option>\n";
}
echo "\t\t</select>\n";
}
/**
* This function displays a language dropdown box so that the installatioin
* can be done in the language of the user
*/
function display_language_selection()
{ ?>
<h1><?php get_lang('WelcomeToTheDokeosInstaller');?></h1>
<h2><?php echo display_step_sequence(); ?><?php echo get_lang('InstallationLanguage');?></h2>
<p><?php echo get_lang('PleaseSelectInstallationProcessLanguage');?>:</p>
<form id="lang_form" method="post" action="<?php echo api_get_self(); ?>">
<?php display_language_selection_box(); ?>
<input type="submit" name="step1" value="<?php get_lang('Next');?> &gt;" />
</form>
<?php }
/**
* This function displays the requirements for installing Dokeos.
*
* @param string $installType
* @param boolean $badUpdatePath
* @param string The updatePath given (if given)
* @param array $update_from_version_8 The different subversions from version 1.8
* @param array $update_from_version_6 The different subversions from version 1.6
*
* @author unknow
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
*/
function display_requirements($installType, $badUpdatePath, $updatePath='', $update_from_version_8=array(), $update_from_version_6=array())
{
echo '<h2>'.display_step_sequence().get_lang('Requirements')."</h2>\n";
echo '<strong>'.get_lang('ReadThoroughly').'</strong><br />';
echo get_lang('MoreDetails').' <a href="../../documentation/installation_guide.html" target="_blank">'.get_lang('ReadTheInstallGuide').'</a>.<br />'."\n";
// SERVER REQUIREMENTS
echo '<div class="RequirementHeading"><h1>'.get_lang('ServerRequirements').'</h1>';
echo '<div class="RequirementText">'.get_lang('ServerRequirementsInfo').'</div>';
echo '<div class="RequirementContent">';
echo '<table class="requirements">
<tr>
<td class="requirements-item">'.get_lang('PHPVersion').'>= 5.0</td>
<td class="requirements-value">';
if (phpversion() < '5.0')
{
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">session '.get_lang('support').'</td>
<td class="requirements-value">'.check_extension('session',get_lang('OK'), get_lang('ExtensionSessionsNotAvailable')).'</td>
</tr>
<tr>
<td class="requirements-item">MySQL '.get_lang('support').'</td>
<td class="requirements-value">'.check_extension('mysql',get_lang('OK'), get_lang('ExtensionMySQLNotAvailable')).'</td>
</tr>
<tr>
<td class="requirements-item">zlib '.get_lang('support').'</td>
<td class="requirements-value">'.check_extension('zlib',get_lang('OK'), get_lang('ExtensionZlibNotAvailable')).'</td>
</tr>
<tr>
<td class="requirements-item">Regular Expressions '.get_lang('support').'</td>
<td class="requirements-value">'.check_extension('pcre',get_lang('OK'), get_lang('ExtensionPCRENotAvailable')).'</td>
</tr>
<tr>
<td class="requirements-item">XML '.get_lang('support').'</td>
<td class="requirements-value">'.check_extension('xml',get_lang('OK'), get_lang('ExtensionZlibNotAvailable')).'</td>
</tr>
<tr>
<td class="requirements-item">MultiByteString '.get_lang('support').'</td>
<td class="requirements-value">'.check_extension('mbstring',get_lang('OK'), get_lang('ExtensionMBStringNotAvailable')).'</td>
</tr>
<tr>
<td class="requirements-item">GD '.get_lang('support').'</td>
<td class="requirements-value">'.check_extension('gd',get_lang('OK'), get_lang('ExtensionGDNotAvailable')).'</td>
</tr>
<tr>
<td class="requirements-item">LDAP '.get_lang('support').' ('.get_lang('Optional').')</td>
<td class="requirements-value">'.check_extension('ldap',get_lang('OK'), get_lang('ExtensionLDAPNotAvailable'),true).'</td>
</tr>
</table>';
echo ' </div>';
echo '</div>';
// RECOMMENDED SETTINGS
// Note: these are the settings for Joomla, does this also apply for Dokeos?
// Note: also add upload_max_filesize here so that large uploads are possible
echo '<div class="RequirementHeading"><h1>'.get_lang('RecommendedSettings').'</h1>';
echo '<div class="RequirementText">'.get_lang('RecommendedSettingsInfo').'</div>';
echo '<div class="RequirementContent">';
echo '<table class="requirements">
<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">OFF</td>
<td class="requirements-value">'.check_php_setting('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">OFF</td>
<td class="requirements-value">'.check_php_setting('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">ON</td>
<td class="requirements-value">'.check_php_setting('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">ON</td>
<td class="requirements-value">'.check_php_setting('magic_quotes_gpc','ON').'</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">OFF</td>
<td class="requirements-value">'.check_php_setting('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">OFF</td>
<td class="requirements-value">'.check_php_setting('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">OFF</td>
<td class="requirements-value">'.check_php_setting('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">ON</td>
<td class="requirements-value">'.check_php_setting('short_open_tag','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">10M-100M</td>
<td class="requirements-value">'.ini_get('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">10M-100M</td>
<td class="requirements-value">'.ini_get('post_max_size').'</td>
</tr>
</table>';
echo ' </div>';
echo '</div>';
// DIRECTORY AND FILE PERMISSIONS
echo '<div class="RequirementHeading"><h1>'.get_lang('DirectoryAndFilePermissions').'</h1>';
echo '<div class="RequirementText">'.get_lang('DirectoryAndFilePermissionsInfo').'</div>';
echo '<div class="RequirementContent">';
echo '<table class="requirements">
<tr>
<td class="requirements-item">dokeos/main/inc/conf/</td>
<td class="requirements-value">'.check_writable('inc/conf/').'</td>
</tr>
<tr>
<td class="requirements-item">dokeos/main/garbage/</td>
<td class="requirements-value">'.check_writable('garbage/').'</td>
</tr>
<tr>
<td class="requirements-item">dokeos/main/upload/</td>
<td class="requirements-value">'.check_writable('upload/').'</td>
</tr>
<tr>
<td class="requirements-item">dokeos/main/default_course_document/images/</td>
<td class="requirements-value">'.check_writable('default_course_document/images/').'</td>
</tr>
<tr>
<td class="requirements-item">dokeos/archive/</td>
<td class="requirements-value">'.check_writable('../archive/').'</td>
</tr>
<tr>
<td class="requirements-item">dokeos/courses/</td>
<td class="requirements-value">'.check_writable('../courses/').'</td>
</tr>
<tr>
<td class="requirements-item">dokeos/home/</td>
<td class="requirements-value">'.check_writable('../home/').'</td>
</tr>
';
echo '</table>';
echo ' </div>';
echo '</div>';
if($installType == 'update' && (empty($updatePath) || $badUpdatePath))
{
if($badUpdatePath)
{ ?>
<div style="color:red; background-color:white; font-weight:bold; text-align:center;">
<?php echo get_lang('Error');?>!<br />
Dokeos <?php echo (isset($_POST['step2_update_6'])?implode('|',$update_from_version_6):implode('|',$update_from_version_8)).' '.get_lang('HasNotBeenFoundInThatDir'); ?>.
</div>
<?php }
else
{
echo '<br />';
}
?>
<table border="0" cellpadding="5" align="center">
<tr>
<td><?php echo get_lang('OldVersionRootPath');?>:</td>
<td><input type="text" name="updatePath" size="50" value="<?php echo ($badUpdatePath && !empty($updatePath))?htmlentities($updatePath):$_SERVER['DOCUMENT_ROOT'].'/old_version/'; ?>" /></td>
</tr>
<tr>
<td colspan="2" align="center">
<input type="submit" name="step1" value="&lt; <?php echo get_lang('Back');?>" />
<input type="submit" name="<?php echo (isset($_POST['step2_update_6'])?'step2_update_6':'step2_update_8');?>" value="<?php echo get_lang('Next');?> &gt;" />
</td>
</tr>
</table>
<?php
}
else
{
$error=false;
$perm = api_get_setting('permissions_for_new_directories');
$perm = octdec(!empty($perm)?$perm:'0770');
$perm_file = api_get_setting('permissions_for_new_files');
$perm_file = octdec(!empty($perm_file)?$perm_file:'0660');
//First, attempt to set writing permissions if we don't have them yet
//0xxx is an octal number, this is the required format
$notwritable = array();
if(!is_writable('../inc/conf'))
{
$notwritable[]='../inc/conf';
@chmod('../inc/conf',$perm);
}
if(!is_writable('../garbage'))
{
$notwritable[]='../garbage';
@chmod('../garbage',$perm);
}
if(!is_writable('../upload'))
{
$notwritable[]='../upload';
@chmod('../upload', $perm);
}
if(!is_writable('../../archive'))
{
$notwritable[]='../../archive';
@chmod('../../archive',$perm);
}
if(!is_writable('../../courses'))
{
$notwritable[]='../../courses';
@chmod('../../courses',$perm);
}
if(!is_writable('../../home'))
{
$notwritable[]='../../home';
@chmod('../../home',$perm);
}
if(file_exists('../inc/conf/configuration.php') && !is_writable('../inc/conf/configuration.php'))
{
$notwritable[]='../inc/conf/configuration.php';
@chmod('../inc/conf/configuration.php',$perm_file);
}
//Second, if this fails, report an error
//--> the user will have to adjust the permissions manually
if(count($notwritable)>0)
{
$error=true;
echo '<div style="color:red; background-color:white; font-weight:bold; text-align:center;">';
echo get_lang('Warning').':<br />';
printf(get_lang('NoWritePermissionPleaseReadInstallGuide'),'</font><a href="../../documentation/installation_guide.html" target="blank">','</a> <font color="red">');
echo '<ul>';
foreach ($notwritable as $value)
{
echo '<li>'.$value.'</li>';
}
echo '</ul>';
echo '</div>';
}
// check wether a Dokeos configuration file already exists.
elseif(file_exists('../inc/conf/configuration.php'))
{
echo '<div style="color:red; background-color:white; font-weight:bold; text-align:center;">';
echo get_lang('WarningExistingDokeosInstallationDetected');
echo '</div>';
}
//and now display the choice buttons (go back or install)
?>
<p align="center">
<input type="submit" name="step1" onclick="window.location='index.php';return false;" value="&lt; <?php echo get_lang('Previous'); ?>"/>
<input type="submit" name="step2_install" value="<?php echo get_lang("NewInstallation"); ?>" <?php if($error) echo 'disabled="disabled"'; ?> />
<?php
//real code
echo '<input type="submit" name="step2_update_8" value="Upgrade from Dokeos 1.8.x"';
if($error) echo ' disabled="disabled"';
//temporary code for alpha version, disabling upgrade
//echo '<input type="submit" name="step2_update" value="Upgrading is not possible in this beta version"';
//echo ' disabled="disabled"';
//end temp code
echo ' />';
echo '<input type="submit" name="step2_update_6" value="Upgrade from Dokeos 1.6.x"';
if($error) echo ' disabled="disabled"';
echo ' />';
echo '</p>';
}
}
/**
* Displays the license (GNU GPL) as step 2, with
* - an "I accept" button named step3 to proceed to step 3;
* - a "Back" button named step1 to go back to the first step.
*/
function display_license_agreement()
{
echo '<h2>'.display_step_sequence().get_lang('Licence').'</h2>';
echo '<p>'.get_lang('DokeosLicenseInfo').'</p>';
echo '<p><a href="../../documentation/license.html">'.get_lang('PrintVers').'</a></p>';
?>
<table><tr><td>
<p><textarea cols="75" rows="15" ><?php htmlentities(include('../../documentation/license.txt')); ?></textarea></p>
</td>
</tr>
<tr>
<td>
<p><?php echo get_lang('DokeosArtLicense');?></p>
</td>
</tr>
<td>
<table width="100%">
<tr>
<td></td>
<td align="center">
<input type="submit" name="step1" value="&lt; <?php echo get_lang('Previous'); ?>" />
<input type="submit" name="step3" value="<?php echo get_lang('IAccept'); ?> &gt;" />
</td>
</tr>
</table>
</td></tr></table>
<?php
}
/**
* Displays a parameter in a table row.
* Used by the display_database_settings_form function.
* @param string Type of install
* @param string Name of parameter
* @param string Field name (in the HTML form)
* @param string Field value
* @param string Extra notice (to show on the right side)
* @param boolean Whether to display in update mode
* @param string Additional attribute for the <tr> element
* @return void Direct output
*/
function display_database_parameter($install_type, $parameter_name, $form_field_name, $parameter_value, $extra_notice, $display_when_update = true, $tr_attribute='')
{
echo "<tr ".$tr_attribute.">\n";
echo "<td>$parameter_name&nbsp;&nbsp;</td>\n";
if ($install_type == INSTALL_TYPE_UPDATE && $display_when_update)
{
echo '<td><input type="hidden" name="'.$form_field_name.'" id="'.$form_field_name.'" value="'.htmlentities($parameter_value).'" />'.$parameter_value."</td>\n";
}
else
{
echo '<td><input type="text" size="'.DATABASE_FORM_FIELD_DISPLAY_LENGTH.'" maxlength="'.MAX_FORM_FIELD_LENGTH.'" name="'.$form_field_name.'" id="'.$form_field_name.'" value="'.htmlentities($parameter_value).'" />'."</td>\n";
echo "<td>$extra_notice</td>\n";
}
echo "</tr>\n";
}
/**
* Displays step 3 - a form where the user can enter the installation settings
* regarding the databases - login and password, names, prefixes, single
* or multiple databases, tracking or not...
*/
function display_database_settings_form($installType, $dbHostForm, $dbUsernameForm, $dbPassForm, $dbPrefixForm, $enableTrackingForm, $singleDbForm, $dbNameForm, $dbStatsForm, $dbScormForm, $dbUserForm)
{
if($installType == 'update')
{
global $_configuration, $update_from_version_6;
if(in_array($_POST['old_version'],$update_from_version_6))
{
$dbHostForm=get_config_param('dbHost');
$dbUsernameForm=get_config_param('dbLogin');
$dbPassForm=get_config_param('dbPass');
$dbPrefixForm=get_config_param('dbNamePrefix');
$enableTrackingForm=get_config_param('is_trackingEnabled');
$singleDbForm=get_config_param('singleDbEnabled');
$dbNameForm=get_config_param('mainDbName');
$dbStatsForm=get_config_param('statsDbName');
$dbScormForm=get_config_param('scormDbName');
$dbUserForm=get_config_param('user_personal_database');
$dbScormExists=true;
}
else
{
$dbHostForm=$_configuration['db_host'];
$dbUsernameForm=$_configuration['db_user'];
$dbPassForm=$_configuration['db_password'];
$dbPrefixForm=$_configuration['db_prefix'];
$enableTrackingForm=$_configuration['tracking_enabled'];
$singleDbForm=$_configuration['single_database'];
$dbNameForm=$_configuration['main_database'];
$dbStatsForm=$_configuration['statistics_database'];
$dbScormForm=$_configuration['scorm_database'];
$dbUserForm=$_configuration['user_personal_database'];
$dbScormExists=true;
}
if(empty($dbScormForm))
{
if($singleDbForm)
{
$dbScormForm=$dbNameForm;
}
else
{
$dbScormForm=$dbPrefixForm.'scorm';
$dbScormExists=false;
}
}
if(empty($dbUserForm))
{
if($singleDbForm)
{
$dbUserForm=$dbNameForm;
}
else
{
$dbUserForm=$dbPrefixForm.'dokeos_user';
}
}
echo "<h2>" . display_step_sequence() .get_lang("DBSetting") . "</h2>";
echo get_lang("DBSettingUpgradeIntro");
}else{
if(empty($dbPrefixForm)) //make sure there is a default value for db prefix
{
$dbPrefixForm = 'dokeos_';
}
echo "<h2>" . display_step_sequence() .get_lang("DBSetting") . "</h2>";
echo get_lang("DBSettingIntro");
}
?>
<br /><br />
</td>
</tr>
<tr>
<td>
<table width="100%">
<tr>
<td width="40%"><?php echo get_lang('DBHost'); ?> </td>
<?php if($installType == 'update'): ?>
<td width="30%"><input type="hidden" name="dbHostForm" value="<?php echo htmlentities($dbHostForm); ?>" /><?php echo $dbHostForm; ?></td>
<td width="30%">&nbsp;</td>
<?php else: ?>
<td width="30%"><input type="text" size="25" maxlength="50" name="dbHostForm" value="<?php echo htmlentities($dbHostForm); ?>" /></td>
<td width="30%"><?php echo get_lang('EG').' localhost'; ?></td>
<?php endif; ?>
</tr>
<?php
//database user username
$example_login = get_lang('EG').' root';
display_database_parameter($installType, get_lang('DBLogin'), 'dbUsernameForm', $dbUsernameForm, $example_login);
//database user password
$example_password = get_lang('EG').' '.api_generate_password();
display_database_parameter($installType, get_lang('DBPassword'), 'dbPassForm', $dbPassForm, $example_password);
//database prefix
display_database_parameter($installType, get_lang('DbPrefixForm'), 'dbPrefixForm', $dbPrefixForm, get_lang('DbPrefixCom'));
//fields for the four standard Dokeos databases
echo '<tr><td colspan="3"><a href="" onclick="show_hide_option();return false;"><img src="../img/add_na.gif" alt="show-hide" />'.get_lang('OptionalParameters','').'</a></td></tr>';
display_database_parameter($installType, get_lang('MainDB'), 'dbNameForm', $dbNameForm, '&nbsp;',null,'id="optional_param1" style="display:none;"');
display_database_parameter($installType, get_lang('StatDB'), 'dbStatsForm', $dbStatsForm, '&nbsp;',null,'id="optional_param2" style="display:none;"');
if($installType == 'update' && in_array($_POST['old_version'],$update_from_version_6))
{
display_database_parameter($installType, get_lang('ScormDB'), 'dbScormForm', $dbScormForm, '&nbsp;',null,'id="optional_param3" style="display:none;"');
}
display_database_parameter($installType, get_lang('UserDB'), 'dbUserForm', $dbUserForm, '&nbsp;',null,'id="optional_param4" style="display:none;"');
?>
<tr id="optional_param5" style="display:none;">
<td><?php echo get_lang('EnableTracking'); ?> </td>
<?php if($installType == 'update'): ?>
<td><input type="hidden" name="enableTrackingForm" value="<?php echo $enableTrackingForm; ?>" /><?php echo $enableTrackingForm? get_lang('Yes') : get_lang('No'); ?></td>
<?php else: ?>
<td>
<input class="checkbox" type="radio" name="enableTrackingForm" value="1" id="enableTracking1" <?php echo $enableTrackingForm?'checked="checked" ':''; ?>/> <label for="enableTracking1"><?php echo get_lang('Yes'); ?></label>
<input class="checkbox" type="radio" name="enableTrackingForm" value="0" id="enableTracking0" <?php echo $enableTrackingForm?'':'checked="checked" '; ?>/> <label for="enableTracking0"><?php echo get_lang('No'); ?></label>
</td>
<?php endif; ?>
<td>&nbsp;</td>
</tr>
<tr id="optional_param6" style="display:none;">
<td><?php echo get_lang('SingleDb'); ?> </td>
<?php if($installType == 'update'): ?>
<td><input type="hidden" name="singleDbForm" value="<?php echo $singleDbForm; ?>" /><?php echo $singleDbForm? get_lang('One') : get_lang('Several'); ?></td>
<?php else: ?>
<td>
<input class="checkbox" type="radio" name="singleDbForm" value="1" id="singleDb1" <?php echo $singleDbForm?'checked="checked" ':''; ?> onclick="document.getElementById('dbStatsForm').disabled='true'; document.getElementById('dbUserForm').disabled='true';" /> <label for="singleDb1"><?php echo get_lang('One'); ?></label>
<input class="checkbox" type="radio" name="singleDbForm" value="0" id="singleDb0" <?php echo $singleDbForm?'':'checked="checked" '; ?> onclick="document.getElementById('dbStatsForm').disabled='false'; document.getElementById('dbUserForm').disabled='false';" /> <label for="singleDb0"><?php echo get_lang('Several'); ?></label>
</td>
<?php endif; ?>
<td>&nbsp;</td>
</tr>
</div>
<tr>
<td><input type="submit" name="step3" value="<?php echo get_lang('CheckDatabaseConnection'); ?>" /> </td>
<?php $dbConnect = test_db_connect ($dbHostForm, $dbUsernameForm, $dbPassForm, $singleDbForm, $dbPrefixForm);
if($dbConnect==1): ?>
<td colspan="2">
<div class="confirmation-message">
<div style="float:left; margin-right:10px;">
<img src="../img/message_confirmation.png" alt="Confirmation" />
</div>
<div style="float:left;">
MySQL host info: <?php echo mysql_get_host_info(); ?><br />
MySQL server version: <?php echo mysql_get_server_info(); ?><br />
MySQL protocol version: <?php echo mysql_get_proto_info(); ?>
</div>
<div style="clear:both;"></div>
</div>
</td>
<?php else: ?>
<td colspan="2">
<div class="error-message">
<div style="float:left; margin-right:10px;">
<img src="../img/message_error.png" alt="Error" />
</div>
<div style="float:left;">
<strong>MySQL error: <?php echo mysql_errno(); ?></strong><br />
<?php echo mysql_error(); ?>
</div>
</div>
</td>
<?php endif; ?>
</tr>
<tr>
<td><input type="submit" name="step2" value="&lt; <?php echo get_lang('Previous'); ?>" /></td>
<td>&nbsp;</td>
<td align="right"><input type="submit" name="step4" value="<?php echo get_lang('Next'); ?> &gt;" /></td>
</tr>
</table>
<?php
}
/**
* Displays a parameter in a table row.
* Used by the display_configuration_settings_form function.
*/
function display_configuration_parameter($install_type, $parameter_name, $form_field_name, $parameter_value, $display_when_update = 'true')
{
echo "<tr>\n";
echo "<td>$parameter_name&nbsp;&nbsp;</td>\n";
if ($install_type == INSTALL_TYPE_UPDATE && $display_when_update)
{
echo '<td><input type="hidden" name="'.$form_field_name.'" value="'.htmlentities($parameter_value).'" />'.$parameter_value."</td>\n";
}
else
{
echo '<td><input type="text" size="'.FORM_FIELD_DISPLAY_LENGTH.'" maxlength="'.MAX_FORM_FIELD_LENGTH.'" name="'.$form_field_name.'" value="'.htmlentities($parameter_value).'" />'."</td>\n";
}
echo "</tr>\n";
}
/**
* Displays step 4 of the installation - configuration settings about Dokeos itself.
*/
function display_configuration_settings_form($installType, $urlForm, $languageForm, $emailForm, $adminFirstName, $adminLastName, $adminPhoneForm, $campusForm, $institutionForm, $institutionUrlForm, $encryptPassForm, $allowSelfReg, $allowSelfRegProf, $loginForm, $passForm)
{
if($installType != 'update' && empty($languageForm))
{
$languageForm = $_SESSION['install_language'];
}
echo "<h2>" . display_step_sequence() . get_lang("CfgSetting") . "</h2>";
echo '<p>'.get_lang('ConfigSettingsInfo').' <b>main/inc/conf/configuration.php</b></p>';
echo "</td></tr>\n<tr><td>";
echo "<table width=\"100%\">";
//First parameter: language
echo "<tr>\n";
echo '<td>'.get_lang('MainLang')."&nbsp;&nbsp;</td>\n";
if($installType == 'update')
{
echo '<td><input type="hidden" name="languageForm" value="'.htmlentities($languageForm).'" />'.$languageForm."</td>\n";
}
else // new installation
{
echo '<td>';
echo "<select name=\"languageForm\">\n";
$dirname='../lang/';
if ($dir=@opendir($dirname)) {
$lang_files = array();
while (($file = readdir($dir)) !== false) {
if($file != '.' && $file != '..' && $file != 'CVS' && $file != '.svn' && is_dir($dirname.$file)){
array_push($lang_files, $file);
}
}
closedir($dir);
}
sort($lang_files);
foreach ($lang_files as $file) {
echo '<option value="'.$file.'"';
if($file == $languageForm) echo ' selected="selected"';
echo ">$file</option>\n";
}
echo '</select>';
echo "</td>\n";
}
echo "</tr>\n";
//Second parameter: Dokeos URL
echo "<tr>\n";
echo '<td>'.get_lang('DokeosURL').' (<font color="#cc0033">'.get_lang('ThisFieldIsRequired')."</font>)&nbsp;&nbsp;</td>\n";
if($installType == 'update') echo '<td>'.htmlentities($urlForm)."</td>\n";
else echo '<td><input type="text" size="40" maxlength="100" name="urlForm" value="'.htmlentities($urlForm).'" />'."</td>\n";
echo "</tr>\n";
//Parameter 3: administrator's email
display_configuration_parameter($installType, get_lang("AdminEmail"), "emailForm", $emailForm);
//Parameter 4: administrator's last name
display_configuration_parameter($installType, get_lang("AdminLastName"), "adminLastName", $adminLastName);
//Parameter 5: administrator's first name
display_configuration_parameter($installType, get_lang("AdminFirstName"), "adminFirstName", $adminFirstName);
//Parameter 6: administrator's telephone
display_configuration_parameter($installType, get_lang("AdminPhone"), "adminPhoneForm", $adminPhoneForm);
//Parameter 7: administrator's login
display_configuration_parameter($installType, get_lang("AdminLogin"), "loginForm", $loginForm, ($installType == 'update' ? true : false));
//Parameter 8: administrator's password
if($installType != 'update')
display_configuration_parameter($installType, get_lang("AdminPass"), "passForm", $passForm, false);
//Parameter 9: campus name
display_configuration_parameter($installType, get_lang("CampusName"), "campusForm", $campusForm);
//Parameter 10: institute (short) name
display_configuration_parameter($installType, get_lang("InstituteShortName"), "institutionForm", $institutionForm);
//Parameter 11: institute (short) name
display_configuration_parameter($installType, get_lang("InstituteURL"), "institutionUrlForm", $institutionUrlForm);
?>
<tr>
<td><?php echo get_lang("EncryptUserPass"); ?> :</td>
<?php if($installType == 'update'): ?>
<td><input type="hidden" name="encryptPassForm" value="<?php echo $encryptPassForm; ?>" /><?php echo $encryptPassForm? get_lang("Yes") : get_lang("No"); ?></td>
<?php else: ?>
<td>
<input class="checkbox" type="radio" name="encryptPassForm" value="1" id="encryptPass1" <?php echo $encryptPassForm?'checked="checked" ':''; ?>/> <label for="encryptPass1"><?php echo get_lang("Yes"); ?></label>
<input class="checkbox" type="radio" name="encryptPassForm" value="0" id="encryptPass0" <?php echo $encryptPassForm?'':'checked="checked" '; ?>/> <label for="encryptPass0"><?php echo get_lang("No"); ?></label>
</td>
<?php endif; ?>
</tr>
<tr>
<td><?php echo get_lang("AllowSelfReg"); ?> :</td>
<?php if($installType == 'update'): ?>
<td><input type="hidden" name="allowSelfReg" value="<?php echo $allowSelfReg; ?>" /><?php echo $allowSelfReg? get_lang("Yes") : get_lang("No"); ?></td>
<?php else: ?>
<td>
<input class="checkbox" type="radio" name="allowSelfReg" value="1" id="allowSelfReg1" <?php echo $allowSelfReg?'checked="checked" ':''; ?>/> <label for="allowSelfReg1"><?php echo get_lang("Yes").' '.get_lang("Recommended"); ?></label>
<input class="checkbox" type="radio" name="allowSelfReg" value="0" id="allowSelfReg0" <?php echo $allowSelfReg?'':'checked="checked" '; ?>/> <label for="allowSelfReg0"><?php echo get_lang("No"); ?></label>
</td>
<?php endif; ?>
</tr>
<tr>
<td><?php echo get_lang("AllowSelfRegProf"); ?> :</td>
<?php if($installType == 'update'): ?>
<td><input type="hidden" name="allowSelfRegProf" value="<?php echo $allowSelfRegProf; ?>" /><?php echo $allowSelfRegProf? get_lang("Yes") : get_lang("No"); ?></td>
<?php else: ?>
<td>
<input class="checkbox" type="radio" name="allowSelfRegProf" value="1" id="allowSelfRegProf1" <?php echo $allowSelfRegProf?'checked="checked" ':''; ?>/> <label for="allowSelfRegProf1"><?php echo get_lang("Yes"); ?></label>
<input class="checkbox" type="radio" name="allowSelfRegProf" value="0" id="allowSelfRegProf0" <?php echo $allowSelfRegProf?'':'checked="checked" '; ?>/> <label for="allowSelfRegProf0"><?php echo get_lang("No"); ?></label>
</td>
<?php endif; ?>
</tr>
<tr>
<td><input type="submit" name="step3" value="&lt; <?php echo get_lang('Previous'); ?>" /></td>
<td align="right"><input type="submit" name="step5" value="<?php echo get_lang('Next'); ?> &gt;" /></td>
</tr>
</table>
<?php
}
/**
* After installation is completed (step 6), this message is displayed.
*/
function display_after_install_message($installType, $nbr_courses)
{
?>
<h2><?php echo display_step_sequence() . get_lang("CfgSetting"); ?></h2>
<?php echo get_lang('FirstUseTip'); ?>
<?php if($installType == 'update' && $nbr_courses > MAX_COURSE_TRANSFER): ?>
<br /><br />
<font color="red"><b><?php echo get_lang('Warning');?> :</b> <?php printf(get_lang('YouHaveMoreThanXCourses'),MAX_COURSE_TRANSFER,MAX_COURSE_TRANSFER,'<a href="update_courses.php"><font color="red">','</font></a>');?></font>
<?php endif; ?>
<br /><br />
<?php
echo '<div class="warning-message">';
echo '<img src="../img/message_warning.png" style="float:left; margin-right:10px;" alt="'.get_lang('Warning').'"/>';
echo '<b>'.get_lang('SecurityAdvice').'</b>';
echo ': ';
printf(get_lang('ToProtectYourSiteMakeXAndYReadOnly'),'main/inc/conf/configuration.php','main/install/index.php');
echo '</div>';
?>
</form>
<a href="../../index.php"><?php echo get_lang('GoToYourNewlyCreatedPortal'); ?></a>
<?php
}
/**
* In step 3. Test the connection to the DB in case of single or multy DB.
* Return "1"if no problems, "0" if, in case of multiDB we can't create a new DB and "-1" if there is no connection.
*/
function test_db_connect ($dbHostForm, $dbUsernameForm, $dbPassForm, $singleDbForm, $dbPrefixForm)
{
$dbConnect = -1;
if($singleDbForm == 1)
{
if(mysql_connect($dbHostForm, $dbUsernameForm, $dbPassForm) !== false)
{
$dbConnect = 1;
}
else
{
$dbConnect = -1;
}
}
elseif($singleDbForm == 0)
{
if(mysql_connect($dbHostForm, $dbUsernameForm, $dbPassForm) !== false)
{
$multipleDbCheck = @mysql_query("CREATE DATABASE ".$dbPrefixForm."test_dokeos_connection");
if($multipleDbCheck !== false)
{
$multipleDbCheck = @mysql_query("DROP DATABASE IF EXISTS ".$dbPrefixForm."test_dokeos_connection");
if($multipleDbCheck !== false)
{
$dbConnect = 1;
}
else
{
$dbConnect = 0;
}
}
else
{
$dbConnect = 0;
}
}
else
{
$dbConnect = -1;
}
}
return($dbConnect); //return "1"if no problems, "0" if, in case of multiDB we can't create a new DB and "-1" if there is no connection.
}
?>