/**
* Publishes a message in the given channel of the chat and returns it.
*
* @param WiseChatUser $user Author of the message
* @param WiseChatChannel $channel A channel to publish in
* @param string $text Content of the message
* @param boolean $isAdmin Indicates whether to mark the message as admin-owned
*
* @return WiseChatMessage|null
* @throws Exception On validation error
*/
public function addMessage($user, $channel, $text, $isAdmin = false)
{
$text = trim($text);
$filteredMessage = $text;
// basic validation:
if ($user === null) {
throw new Exception('User cannot be null');
}
if ($channel === null) {
throw new Exception('Channel cannot be null');
}
if ($this->bansService->isIpAddressBanned($user->getIp())) {
throw new Exception($this->options->getOption('message_error_3', 'You were banned from posting messages'));
}
// use bad words filtering:
if ($this->options->isOptionEnabled('filter_bad_words')) {
WiseChatContainer::load('rendering/filters/pre/WiseChatFilter');
$badWordsFilterReplacement = $this->options->getOption('bad_words_replacement_text');
$filteredMessage = WiseChatFilter::filter($filteredMessage, strlen($badWordsFilterReplacement) > 0 ? $badWordsFilterReplacement : null);
}
// auto-ban feature:
if ($this->options->isOptionEnabled('enable_autoban') && $filteredMessage != $text) {
$counter = $this->abuses->incrementAndGetAbusesCounter();
$threshold = $this->options->getIntegerOption('autoban_threshold', 3);
if ($counter >= $threshold && $threshold > 0) {
$duration = $this->options->getIntegerOption('autoban_duration', 1440);
$this->bansService->banIpAddress($user->getIp(), $this->bansService->getDurationFromString($duration . 'm'));
$this->abuses->clearAbusesCounter();
}
}
// flood prevention feature:
if ($this->options->isOptionEnabled('enable_flood_control')) {
$floodControlThreshold = $this->options->getIntegerOption('flood_control_threshold', 200);
$floodControlTimeFrame = $this->options->getIntegerOption('flood_control_time_frame', 1);
if ($floodControlThreshold > 0 && $floodControlTimeFrame > 0) {
$messagesAmount = $this->messagesDAO->getNumberByCriteria(WiseChatMessagesCriteria::build()->setIp($user->getIp())->setMinimumTime(time() - $floodControlTimeFrame * 60));
if ($messagesAmount > $floodControlThreshold) {
$duration = $this->options->getIntegerOption('flood_control_ban_duration', 1440);
$this->bansService->banIpAddress($user->getIp(), $this->bansService->getDurationFromString($duration . 'm'));
}
}
}
// go through the custom filters:
$filterChain = WiseChatContainer::get('services/WiseChatFilterChain');
$filteredMessage = $filterChain->filter($filteredMessage);
// cut the message:
$messageMaxLength = $this->options->getIntegerOption('message_max_length', 100);
if ($messageMaxLength > 0) {
$filteredMessage = substr($filteredMessage, 0, $messageMaxLength);
}
// convert images and links into proper shortcodes and download images (if enabled):
/** @var WiseChatLinksPreFilter $linksPreFilter */
$linksPreFilter = WiseChatContainer::get('rendering/filters/pre/WiseChatLinksPreFilter');
$filteredMessage = $linksPreFilter->filter($filteredMessage, $this->options->isOptionEnabled('allow_post_images'), $this->options->isOptionEnabled('enable_youtube'));
$message = new WiseChatMessage();
$message->setTime(time());
$message->setAdmin($isAdmin);
$message->setUserName($user->getName());
$message->setUserId($user->getId());
$message->setText($filteredMessage);
$message->setChannelName($channel->getName());
$message->setIp($user->getIp());
if ($user->getWordPressId() !== null) {
$message->setWordPressUserId($user->getWordPressId());
}
$message = $this->messagesDAO->save($message);
// mark attachments created by the links pre-filter:
$createdAttachments = $linksPreFilter->getCreatedAttachments();
if (count($createdAttachments) > 0) {
$this->attachmentsService->markAttachmentsWithDetails($createdAttachments, $channel->getName(), $message->getId());
}
return $message;
}
/**
* Creates or updates the user and returns it.
*
* @param WiseChatUser $user
*
* @return WiseChatUser
* @throws Exception On validation error
*/
public function save($user)
{
global $wpdb;
// low-level validation:
if ($user->getName() === null) {
throw new Exception('Name of the user cannot equal null');
}
if ($user->getSessionId() === null) {
throw new Exception('Session ID of the user cannot equal null');
}
// prepare user data:
$table = WiseChatInstaller::getUsersTable();
$columns = array('name' => $user->getName(), 'session_id' => $user->getSessionId(), 'data' => json_encode($user->getData()), 'ip' => $user->getIp());
// update or insert:
if ($user->getId() !== null) {
$columns['wp_id'] = $user->getWordPressId();
$wpdb->update($table, $columns, array('id' => $user->getId()), '%s', '%d');
} else {
if ($user->getWordPressId() > 0) {
$columns['wp_id'] = $user->getWordPressId();
}
$columns['created'] = time();
$wpdb->insert($table, $columns);
$user->setId($wpdb->insert_id);
}
return $user;
}