/**
* Saves the email and it's attachments. Uses the default db adapter as
* configured by the application. If an exception occurs, the exception's
* message will be stored in an array (together with other exceptions that
* may have occured) and returned later on. Any db operation that failed will
* be rolled back.
*
* @param array $emailItem An associative array with the data to insert into the
* different tables. All attachments will be stored in the key/value pair "attachments",
* which is itself a numeric array
*
* @return mixed Return the id of the last inserted email item, or an
* error message if an error occured.
*/
private function _saveEmail(array $emailItem)
{
$filterAttachment = $this->_filterAttachment;
$filterFlag = $this->_filterFlag;
$filterItem = $this->_filterItem;
$filterInbox = $this->_filterInbox;
$modelAttachment = $this->_modelAttachment;
$modelFlag = $this->_modelFlag;
$modelItem = $this->_modelItem;
$modelInbox = $this->_modelInbox;
$dbAdapter = Zend_Db_Table::getDefaultAdapter();
if (!$this->_maxAllowedPacket) {
$config = Zend_Registry::get(Conjoon_Keys::REGISTRY_CONFIG_OBJECT);
$this->_maxAllowedPacket = $config->database->variables->max_allowed_packet;
if (!$this->_maxAllowedPacket) {
$this->_maxAllowedPacket = Conjoon_Db_Util::getMaxAllowedPacket($dbAdapter);
}
}
$this->_setPlainFromHtml($emailItem);
// filter and insert into groupware_email_items
$filterItem->setData($emailItem);
$itemData = $filterItem->getProcessedData();
if ($this->_maxAllowedPacket < strlen($emailItem['rawBody'])) {
return 'Could not save message with subject "' . $itemData['subject'] . '" - message is larger than available packet size (' . $this->_maxAllowedPacket . ' bytes).';
}
$dbAdapter->beginTransaction();
$currFilter = null;
try {
Conjoon_Util_Array::underscoreKeys($itemData);
try {
$id = (int) $modelItem->insert($itemData);
} catch (Zend_Db_Statement_Exception $zdse) {
// in very rare cases, there are 4-byte characters in a utf-8
// string, and mysql cannot handle them right since we use
// utf-8 collations. We'll strip those 4-byte characters away.
// see CN-619
$content = $itemData['content_text_plain'];
$i = 0;
$len = strlen($content);
$fourByteDetected = false;
while ($i < $len) {
$ord = ord($content[$i]);
switch (true) {
case $ord <= 127:
$i += 1;
break;
case $ord < 224:
$i += 2;
break;
case $ord < 240:
$i += 3;
break;
default:
$fourByteDetected = true;
$content = substr($content, 0, $i) . substr($content, $i + 4);
$len -= 4;
break;
}
}
if ($fourByteDetected === true) {
$lastResortData = $emailItem;
$lastResortData['contentTextPlain'] = $content;
$filterItem->setData($lastResortData);
$lastResortItemData = $filterItem->getProcessedData();
Conjoon_Util_Array::underscoreKeys($lastResortItemData);
$id = (int) $modelItem->insert($lastResortItemData);
/**
* @see Conjoon_Log
*/
require_once 'Conjoon/Log.php';
Conjoon_Log::log("Detected 4-byte character in content_text_plain for " . "Email message with id {$id}", Zend_Log::NOTICE);
}
}
if ($id <= 0) {
return null;
}
// assign needed (reference) keys
$emailItem['isRead'] = 0;
$emailItem['id'] = $id;
$emailItem['groupwareEmailItemsId'] = $id;
// filter and insert into groupware_email_items_inbox
$currFilter = $filterInbox;
$filterInbox->setData($emailItem);
$itemData = $filterInbox->getProcessedData();
Conjoon_Util_Array::underscoreKeys($itemData);
$modelInbox->addInboxData($itemData);
// filter and insert into groupware_email_items_flag
$currFilter = $filterFlag;
$filterFlag->setData($emailItem);
$itemData = $filterFlag->getProcessedData();
Conjoon_Util_Array::underscoreKeys($itemData);
$modelFlag->insert($itemData);
// loop through attachments and insert into groupware_email_items_attachments
$attachmentCount = count($emailItem['attachments']);
$currFilter = $filterAttachment;
for ($i = 0; $i < $attachmentCount; $i++) {
$emailItem['attachments'][$i]['groupwareEmailItemsId'] = $id;
$filterAttachment->setData($emailItem['attachments'][$i]);
$itemData = $filterAttachment->getProcessedData();
Conjoon_Util_Array::underscoreKeys($itemData);
$modelAttachment->addAttachmentForItem($itemData, $id);
}
$dbAdapter->commit();
return $id;
} catch (Exception $e) {
if ($e instanceof Zend_Filter_Exception) {
$error = Conjoon_Error::fromFilter($currFilter, $e);
$error = $error->getMessage();
} else {
$error = $e->getMessage();
}
try {
$dbAdapter->rollBack();
} catch (Exception $m) {
$error .= '; ' . $m->getMessage();
}
return $error;
}
}
/**
* Returns the number of bytes denoting the maximum file size for uploads.
*
* @return float
*/
public function _getUploadMaxFileSize()
{
/**
* @see Zend_Registry
*/
require_once 'Zend/Registry.php';
/**
* @see Conjoon_Keys
*/
require_once 'Conjoon/Keys.php';
/**
* @see Zend_File_Transfer
*/
require_once 'Zend/File/Transfer/Adapter/Http.php';
$config = Zend_Registry::get(Conjoon_Keys::REGISTRY_CONFIG_OBJECT);
$maxAllowedPacket = $config->database->variables->max_allowed_packet;
if (!$maxAllowedPacket) {
/**
* @see Conjoon_Db_Util
*/
require_once 'Conjoon/Db/Util.php';
$maxAllowedPacket = Conjoon_Db_Util::getMaxAllowedPacket(Zend_Db_Table::getDefaultAdapter());
}
$maxFileSize = min((double) $config->files->upload->max_size, (double) $maxAllowedPacket);
// allowed filesize is max-filesize - 33-36 % of max filesize,
// due to base64 encoding which might happen
$maxFileSize = $maxFileSize - round($maxFileSize / 10 * 3.3);
return $maxFileSize;
}