/**
* Fetch body structure from the IMAP server and build
* an object structure similar to the one generated by PEAR::Mail_mimeDecode
*
* @param int $uid Message UID to fetch
* @param string $structure_str Message BODYSTRUCTURE string (optional)
* @return object rcube_message_part Message part tree or False on failure
*/
function &get_structure($uid, $structure_str = '')
{
$cache_key = $this->mailbox . '.msg';
$headers =& $this->get_cached_message($cache_key, $uid);
// return cached message structure
if (is_object($headers) && is_object($headers->structure)) {
return $headers->structure;
}
if (!$structure_str) {
$structure_str = $this->conn->fetchStructureString($this->mailbox, $uid, true);
}
$structure = rcube_mime_struct::parseStructure($structure_str);
$struct = false;
// parse structure and add headers
if (!empty($structure)) {
$headers = $this->get_headers($uid);
$this->_msg_id = $headers->id;
// set message charset from message headers
if ($headers->charset) {
$this->struct_charset = $headers->charset;
} else {
$this->struct_charset = $this->_structure_charset($structure);
}
$headers->ctype = strtolower($headers->ctype);
// Here we can recognize malformed BODYSTRUCTURE and
// 1. [@TODO] parse the message in other way to create our own message structure
// 2. or just show the raw message body.
// Example of structure for malformed MIME message:
// ("text" "plain" NIL NIL NIL "7bit" 2154 70 NIL NIL NIL)
if ($headers->ctype && !is_array($structure[0]) && $headers->ctype != 'text/plain' && strtolower($structure[0] . '/' . $structure[1]) == 'text/plain') {
// we can handle single-part messages, by simple fix in structure (#1486898)
if (preg_match('/^(text|application)\\/(.*)/', $headers->ctype, $m)) {
$structure[0] = $m[1];
$structure[1] = $m[2];
} else {
return false;
}
}
$struct =& $this->_structure_part($structure, 0, '', $headers);
$struct->headers = get_object_vars($headers);
// don't trust given content-type
if (empty($struct->parts) && !empty($struct->headers['ctype'])) {
$struct->mime_id = '1';
$struct->mimetype = strtolower($struct->headers['ctype']);
list($struct->ctype_primary, $struct->ctype_secondary) = explode('/', $struct->mimetype);
}
// write structure to cache
if ($this->caching_enabled) {
$this->add_message_cache($cache_key, $this->_msg_id, $headers, $struct, $this->icache['message.id'][$uid], true);
}
}
return $struct;
}
/**
* Fetch body structure from the IMAP server and build
* an object structure similar to the one generated by PEAR::Mail_mimeDecode
*
* @param int Message UID to fetch
* @param string Message BODYSTRUCTURE string (optional)
* @return object rcube_message_part Message part tree or False on failure
*/
function &get_structure($uid, $structure_str = '')
{
$cache_key = $this->mailbox . '.msg';
$headers =& $this->get_cached_message($cache_key, $uid);
// return cached message structure
if (is_object($headers) && is_object($headers->structure)) {
return $headers->structure;
}
if (!$structure_str) {
$structure_str = $this->conn->fetchStructureString($this->mailbox, $uid, true);
}
$structure = rcube_mime_struct::parseStructure($structure_str);
$struct = false;
// parse structure and add headers
if (!empty($structure)) {
$headers = $this->get_headers($uid);
$this->_msg_id = $headers->id;
// set message charset from message headers
if ($headers->charset) {
$this->struct_charset = $headers->charset;
} else {
$this->struct_charset = $this->_structure_charset($structure);
}
// Here we can recognize malformed BODYSTRUCTURE and
// 1. [@TODO] parse the message in other way to create our own message structure
// 2. or just show the raw message body.
// Example of structure for malformed MIME message:
// ("text" "plain" ("charset" "us-ascii") NIL NIL "7bit" 2154 70 NIL NIL NIL)
if ($headers->ctype && $headers->ctype != 'text/plain' && $structure[0] == 'text' && $structure[1] == 'plain') {
return false;
}
$struct =& $this->_structure_part($structure);
$struct->headers = get_object_vars($headers);
// don't trust given content-type
if (empty($struct->parts) && !empty($struct->headers['ctype'])) {
$struct->mime_id = '1';
$struct->mimetype = strtolower($struct->headers['ctype']);
list($struct->ctype_primary, $struct->ctype_secondary) = explode('/', $struct->mimetype);
}
// write structure to cache
if ($this->caching_enabled) {
$this->add_message_cache($cache_key, $this->_msg_id, $headers, $struct);
}
}
return $struct;
}