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<?php
namespace MassMail;
use \User, \DBManager, \StudipPDO, \PDO;
class MassMailMarker extends \SimpleORMap
{
/*
* This seems to be necessary because of the direct reference in getDescription.
* Otherwise a PHP warning is thrown.
*/
public string $description;
protected static function configure($config = [])
{
$config['db_table'] = 'massmail_markers';
parent::configure($config);
}
public static function findAll($root = false) {
return $root
? static::findBySQL("1 ORDER BY `position`")
: static::findbyRoot_only("0 ORDER BY `position`");
}
/**
* Replaces markers contained in the given text with their replacement value for the given user.
*
* @param string $text
* @param User $user
* @param MassMailMarker[] $markers
* @return string|string[]
*/
public static function processText(string $text, User $user, array $markers) {
$find = [];
$replace = [];
foreach ($markers as $marker) {
if ((!$marker->root_only || MassMailPermission::has(User::findCurrent()->id, true))
&& strpos($text, '{{' . $marker->marker . '}}') !== false
&& $marker->type != 'token') {
$find[] = '{{' . $marker->marker . '}}';
$replace[] = $marker->replaceMarker($user);
}
}
$text = str_replace($find, $replace, $text);
return $text;
}
/**
* Replaces tokens in the given text with a token for the given user.
* @param int $message_id
* @param string $text
* @param User $user
* @return string|string[]
*/
public static function processToken(int $message_id, string $text, User $user)
{
foreach (self::findByType('token') as $marker) {
if ((!$marker->root_only || MassMailPermission::has(User::findCurrent()->id, true)) &&
strpos($text, '{{' . $marker->marker . '}}') !== false) {
$text = str_replace('{{' . $marker->marker . '}}',
$marker->getReplacementToken($message_id, $user),
$text
);
}
}
return $text;
}
/**
* This is a helper get function which gets the translated marker description. As the regular i18 mechanism for
* translateable content is not working here (thie is just shown in the GUI but stored dynamically in the database)
* I really do not know how to do that otherwise.
*
* @return string
*/
public function getDescription(): string
{
return _($this->description);
}
/**
* Replaces the current marker text according to the given user.
* @param User $user
* @return array|mixed|\SimpleORMapCollection|string|string[]|void|null
*/
public function replaceMarker(User $user)
{
$replacement = $this->replacement;
switch ($user->geschlecht) {
case 2:
if ($this->replacement_female) {
$replacement = $this->replacement_female;
}
break;
case 0:
case 3:
if ($this->replacement_unknown) {
$replacement = $this->replacement_unknown;
}
break;
}
switch ($this->type) {
// Just plain text replacing the marker, just check if other markers are included here.
case 'text':
if (strpos($replacement, '{{') !== false) {
$matches = [];
preg_match_all('/{{([a-zA-Z0-9\-_]+)}}/m', $replacement, $matches);
foreach ($matches[1] as $match) {
$replacement = str_replace('{' . $match . '}',
MassMailMarker::findOneByMarker(trim($match))->replaceMarker($user),
$replacement
);
}
}
return $replacement;
// Content from one or more database columns replaces the marker.
case 'database':
$data = words($replacement);
$find = [];
$replace = [];
foreach ($data as $entry) {
if (strpos($entry, '{') !== false) {
$matches = [];
preg_match_all('/{{([a-zA-Z0-9\-_]+)}}/m', $entry, $matches);
foreach ($matches[1] as $match) {
$replacement = str_replace($entry,
MassMailMarker::findOneByMarker(trim($match))->replaceMarker($user),
$replacement
);
}
} else {
// Extract the database fields...
[$table, $column] = explode('.', $entry);
// ... and query database for values to insert.
$stmt = DBManager::get()->prepare("SELECT `:column`
FROM `:table` WHERE `user_id` = :userid LIMIT 1");
$stmt->bindParam('column', $column, StudipPDO::PARAM_COLUMN);
$stmt->bindParam('table', $table, StudipPDO::PARAM_COLUMN);
$stmt->bindParam('userid', $user->id);
$stmt->execute();
$dbdata = $stmt->fetch(PDO::FETCH_ASSOC);
$replacement = str_replace($entry, $dbdata[$column], $replacement);
}
}
// If we have empty values from database, there could be excess whitespace -> remove.
return trim(preg_replace('/(\s)+/', ' ', $replacement));
// The marker is replaced by the result of a function call.
case 'function':
$data = words($replacement);
$function = array_shift($data);
return call_user_func_array($function, $data);
}
}
/**
* Gets a token and assigns it to the given user.
*/
public function getReplacementToken($message_id, $user): string
{
$token = MassMailToken::findOneBySQL(
"`message_id` = :id AND `user_id`IS NULL"
);
if ($token) {
$token->user_id = $user->id;
$token->store();
return $token->token;
} else {
throw new \Exception('No free token available.');
}
}
}
|
