/**
* Update a Toolbox instance from a configuration file
*
* @see Toolbox::fromConfiguration() Use `Toolbox::fromConfiguration()`
*
* @param string $configFilePath
* @param boolean $forceRecache
* @return void
*/
protected function loadConfiguration($configFilePath, $forceRecache = false)
{
parent::loadConfiguration($configFilePath, $forceRecache);
$config = new ConfigXML($configFilePath);
/* configure database connections */
$this->setCustomPrefs($config->newInstanceOf(mysqli::class, '/config/customprefs'));
}
public function __construct($config)
{
$this->config = new ConfigXML($config);
$this->sql = $this->config->newInstanceOf(mysqli::class, '//mysql');
parent::__construct(LTI_Data_Connector::getDataConnector($this->sql));
$this->setParameterConstraint('oauth_consumer_key', TRUE, 50);
$this->setParameterConstraint('resource_link_id', TRUE, 50, array('basic-lti-launch-request'));
$this->setParameterConstraint('user_id', TRUE, 50, array('basic-lti-launch-request'));
$this->setParameterConstraint('roles', TRUE, NULL, array('basic-lti-launch-request'));
$this->metadata = new AppMetadata($this->sql, '');
$this->opentok = $this->config->newInstanceOf(OpenTok::class, '//tokbox');
}
/**
* Update a Toolbox instance from a configuration file
*
* @see Toolbox::fromConfiguration() Use `Toolbox::fromConfiguration()`
*
* @param string $configFilePath
* @param boolean $forceRecache
* @return void
*/
protected function loadConfiguration($configFilePath, $forceRecache = false)
{
$logQueue = [];
/* load the configuration file */
$config = new ConfigXML($configFilePath);
/* configure database connections */
$this->setMySQL($config->newInstanceOf(mysqli::class, '/config/mysql'));
/* configure metadata caching */
$id = $config->toString('/config/tool/id');
if (empty($id)) {
$id = basename(dirname($configFilePath)) . '_' . md5(__DIR__ . file_get_contents($configFilePath));
$logQueue[] = " Automatically generated ID {$id}";
}
$this->setMetadata(new AppMetadata($this->mysql, $id, self::TOOL_METADATA_TABLE));
/* update metadata */
if ($forceRecache || empty($this->metadata['TOOL_ID']) || empty($this->metadata['TOOL_LAUNCH_URL']) || empty($this->metadata['TOOL_CONFIG_FILE'])) {
$tool = $config->toArray('/config/tool')[0];
$this->metadata['TOOL_ID'] = $id;
$this->metadata['TOOL_NAME'] = empty($tool['name']) ? $id : $tool['name'];
$this->metadata['TOOL_CONFIG_FILE'] = realpath($configFilePath);
$configPath = dirname($this->metadata['TOOL_CONFIG_FILE']);
if (!empty($tool['description'])) {
$this->metadata['TOOL_DESCRIPTION'] = $tool['description'];
} elseif (isset($this->metadata['TOOL_DESCRIPTION'])) {
unset($this->metadata['TOOL_DESCRIPTION']);
}
if (!empty($tool['icon'])) {
$this->metadata['TOOL_ICON_URL'] = file_exists("{$configPath}/{$tool['icon']}") ? DataUtilities::URLfromPath("{$configPath}/{$tool['icon']}") : $tool[self::ICON];
} elseif (isset($this->metadata['TOOL_ICON_URL'])) {
unset($this->metadata['TOOL_ICON_URL']);
}
$this->metadata['TOOL_LAUNCH_PRIVACY'] = empty($tool['launch-privacy']) ? self::DEFAULT_LAUNCH_PRIVACY : $tool['launch-privacy'];
if (!empty($tool['domain'])) {
$this->metadata['TOOL_DOMAIN'] = $tool['domain'];
} elseif (isset($this->metadata['TOOL_DOMAIN'])) {
unset($this->metadata['TOOL_DOMAIN']);
}
$this->metadata['TOOL_LAUNCH_URL'] = empty($tool['authenticate']) ? DataUtilities::URLfromPath($_SERVER['SCRIPT_FILENAME']) : DataUtilities::URLfromPath("{$configPath}/{$tool['authenticate']}");
$logQueue[] = " Tool metadata configured";
}
$configPath = dirname($this->metadata['TOOL_CONFIG_FILE']);
/* configure logging */
if ($forceRecache || empty($this->metadata['TOOL_LOG'])) {
$log = "{$configPath}/" . $config->toString('/config/tool/log');
shell_exec("touch \"{$log}\"");
$this->metadata['TOOL_LOG'] = realpath($log);
}
$this->setLog(Log::singleton('file', $this->metadata['TOOL_LOG']));
if ($forceRecache) {
$this->log("Resetting LTI configuration from {$configFilePath}");
}
if (!empty($logQueue)) {
foreach ($logQueue as $message) {
$this->log($message);
}
unset($logQueue);
}
/* configure tool provider */
if ($forceRecache || empty($this->metadata['TOOL_HANDLER_URLS'])) {
$handlers = $config->toArray('/config/tool/handlers')[0];
if (empty($handlers) || !is_array($handlers)) {
throw new ConfigurationException('At least one handler/URL pair must be specified', ConfigurationException::TOOL_PROVIDER);
}
foreach ($handlers as $request => $path) {
$handlers[$request] = DataUtilities::URLfromPath("{$configPath}/{$path}");
}
$this->metadata['TOOL_HANDLER_URLS'] = $handlers;
$this->log(' Tool provider handler URLs configured');
}
/* configure API access */
if ($forceRecache || empty($this->metadata['TOOL_CANVAS_API'])) {
$this->metadata['TOOL_CANVAS_API'] = $config->toArray('/config/canvas')[0];
if (empty($this->metadata['TOOL_CANVAS_API'])) {
throw new ConfigurationException('Canvas API credentials must be provided', ConfigurationException::CANVAS_API_MISSING);
}
$this->log(' Canvas API credentials configured');
}
}
