protected function _addAttachment($atc_file, $bytes, $filename, $type)
{
global $conf, $injector;
$atc = new Horde_Mime_Part();
$atc->setBytes($bytes);
/* Try to determine the MIME type from 1) the extension and
* then 2) analysis of the file (if available). */
if (strlen($filename)) {
$atc->setName($filename);
if ($type == 'application/octet-stream') {
$type = Horde_Mime_Magic::filenameToMIME($filename, false);
}
}
$atc->setType($type);
if ($atc->getType() == 'application/octet-stream' || $atc->getPrimaryType() == 'text') {
$analyze = Horde_Mime_Magic::analyzeFile($atc_file, empty($conf['mime']['magic_db']) ? null : $conf['mime']['magic_db'], array('nostrip' => true));
$atc->setCharset('UTF-8');
if ($analyze) {
$ctype = new Horde_Mime_Headers_ContentParam('Content-Type', $analyze);
$atc->setType($ctype->value);
if (isset($ctype->params['charset'])) {
$atc->setCharset($ctype->params['charset']);
}
}
} else {
$atc->setHeaderCharset('UTF-8');
}
$atc_ob = new IMP_Compose_Attachment($this, $atc, $atc_file);
/* Check for attachment size limitations. */
$size_limit = null;
if ($atc_ob->linked) {
if (!empty($conf['compose']['link_attach_size_limit'])) {
$linked = true;
$size_limit = 'link_attach_size_limit';
}
} elseif (!empty($conf['compose']['attach_size_limit'])) {
$linked = false;
$size_limit = 'attach_size_limit';
}
if (!is_null($size_limit)) {
$total_size = $conf['compose'][$size_limit] - $bytes;
foreach ($this as $val) {
if ($val->linked == $linked) {
$total_size -= $val->getPart()->getBytes();
}
}
if ($total_size < 0) {
throw new IMP_Compose_Exception(strlen($filename) ? sprintf(_("Attached file \"%s\" exceeds the attachment size limits. File NOT attached."), $filename) : _("Attached file exceeds the attachment size limits. File NOT attached."));
}
}
try {
$injector->getInstance('Horde_Core_Hooks')->callHook('compose_attachment', 'imp', array($atc_ob));
} catch (Horde_Exception_HookNotSet $e) {
}
$this->_atc[$atc_ob->id] = $atc_ob;
$this->changed = 'changed';
return $atc_ob;
}