/**
* Given the raw bytes containing the property-flags and
* property-list from a content-frame-header, parse and insert
* into a dictionary stored in this object as an attribute named
* 'properties'.
*/
public function load_properties($raw_bytes)
{
$r = new AMQP_Reader($raw_bytes);
// Read 16-bit shorts until we get one with a low bit set to zero
$flags = array();
while (true) {
$flag_bits = $r->read_short();
array_push($flags, $flag_bits);
if (($flag_bits & 1) == 0) {
break;
}
}
$shift = 0;
$d = array();
foreach ($this->prop_types as $key => $proptype) {
if ($shift == 0) {
if (!$flags) {
break;
}
$flag_bits = array_shift($flags);
$shift = 15;
}
if ($flag_bits & 1 << $shift) {
$d[$key] = call_user_func(array($r, "read_" . $proptype));
}
$shift -= 1;
}
$this->properties = $d;
}
function wait_content()
{
$frm = $this->next_frame();
$frame_type = $frm[0];
$payload = $frm[1];
if ($frame_type != 2) {
throw new Exception("Expecting Content header");
}
$payload_reader = new AMQP_Reader(substr($payload, 0, 12));
$class_id = $payload_reader->read_short();
$weight = $payload_reader->read_short();
$body_size = $payload_reader->read_longlong();
$msg = new AMQP_Message();
$msg->load_properties(substr($payload, 12));
$body_parts = array();
$body_received = 0;
while (bccomp($body_size, $body_received) == 1) {
$frm = $this->next_frame();
$frame_type = $frm[0];
$payload = $frm[1];
if ($frame_type != 3) {
throw new Exception("Expecting Content body, received frame type {$frame_type}");
}
$body_parts[] = $payload;
$body_received = bcadd($body_received, strlen($payload));
}
$msg->body = implode("", $body_parts);
if ($this->auto_decode and isset($msg->content_encoding)) {
try {
$msg->body = $msg->body->decode($msg->content_encoding);
} catch (Exception $e) {
self::debug_msg("Ignoring body decoding exception: " . $e->getMessage());
}
}
return $msg;
}
/**
* Read an AMQP table, and return as a PHP array. keys are strings,
* values are (type,value) tuples.
*/
public function read_table()
{
$this->bitcount = $this->bits = 0;
$tlen = $this->read_php_int();
if ($tlen < 0) {
throw new Exception("Table is longer than supported");
}
$table_data = new AMQP_Reader($this->rawread($tlen));
$result = array();
while ($table_data->tell() < $tlen) {
$name = $table_data->read_shortstr();
$ftype = $table_data->rawread(1);
if ($ftype == 'S') {
$val = $table_data->read_longstr();
} else {
if (ftype == 'I') {
$val = $table_data->read_signed_long();
} else {
if ($ftype == 'D') {
$e = $table_data->read_octet();
$n = $table_data->read_signed_long();
$val = new AMQP_Wire_Decimal($n, $e);
} else {
if ($ftype == 'T') {
$val = $table_data->read_timestamp();
} else {
if ($ftype == 'F') {
$val = $table_data->read_table();
// recursion
} else {
error_log("Usupported table field type {$ftype}");
$val = NULL;
}
}
}
}
}
$result[$name] = array($ftype, $val);
}
return $result;
}
