def load(self, rpcmsg):
"""Extract RPC parameters from message header in rpcmsg into rpcHeader
variables.
If a ValueError or IndexError is detected, raises rpcMsgError."""
# Mark time received
self.timerecd = common.time2timestamp()
# Split data into fields and parse it
data = rpcmsg.split(',')
try:
self.len_total = int(data[0])
self.timesent = data[1].strip()
# mktime treats its argument as a localtime(), i.e. HST, so we
# must subtract 10 hours (36000.0 seconds):
self.msg_time = common.timestamp2time(self.timesent) - 36000.0
self.protocol_ver = data[2].strip()
self.seq_num = int(data[3])
self.sender = data[4].strip()
self.process_code = int(data[5])
# uid and gid can be blank, according to SOSS rpc spec, and often
# are, so we maintain them as strings, not ints.
self.uid = data[6].strip()
self.gid = data[7].strip()
self.receiver = data[8].strip()
self.pkt_type = data[9].strip()
self.msg_type = data[10].strip()
self.len_payload = int(data[11])
self.reserved = '%27s' % ''
self.payload = rpcmsg[self.len_hdr:]
except ValueError, e:
raise rpcMsgError("malformed SOSS rpc message: '%s'" % rpcmsg)
def unpack_sd(self):
"""Unpack self.payload from a FE message."""
try:
tablename = self.payload[0:8]
statusdata = self.payload[9:]
except IndexError, e:
raise rpcMsgError("SOSS RPC SD payload format error: %s" % str(e))
def unpack_ab(self):
"""Unpack self.payload from an AB message."""
try:
(seq_num, result) = self.payload.split(',')
seq_num = int(seq_num)
result = int(result)
except (ValueError, TypeError), e:
raise rpcMsgError("SOSS RPC AB payload format error: %s" % str(e))
def unpack_fs(self):
"""Unpack self.payload from a FS message."""
try:
data = self.payload.split(',')
(fitspath, fitssize, frameid, propid, starsdir, version, indexpath,
indexsize) = data
fitssize = int(fitssize)
indexsize = int(indexsize)
except ValueError, e:
raise rpcMsgError("SOSS RPC FT,FS payload error: %s" % str(e))
class TCSstatRpcHeader(object):
"""TCS RPC Header Class. This is a container for RPC header
parameters.
"""
def __init__(self, rpcmsg=None):
"""Constructor. Calls load(rpcmsg) to extract header parameters if
an RPC message is provided; else calls sethdr() to set default
header parameters."""
self.len_hdr = 33
if rpcmsg:
self.load(rpcmsg) # must be a packed RPC message type
else:
self.sethdr()
def load(self, rpcmsg):
"""Extract RPC parameters from message header in rpcmsg into rpcHeader
variables. Use this method to parse a message that was received.
NOTE: for TCSL and TCSS interfaces (see STATint), rpcmsg is
an object that has the actual message imbedded in a "contents"
attribute; therefore, the header and payload fields must be
extracted from rpcmsg.contents. For all other TCS interfaces,
the header and payload fields must be extracted from rpcmsg.
If a ValueError or IndexError is detected, raises rpcMsgError."""
# Mark time received
self.timerecd = time2timestamp()
# Extract string message if necessary
if type(rpcmsg) != types.StringType:
rpcmsg = rpcmsg.contents
# Parse fields of header
#? print 'rpcmsg = ',rpcmsg
try:
self.msg_type = rpcmsg[0:2]
self.rcvr_host = rpcmsg[2:6]
self.send_host = rpcmsg[6:10]
self.proc_id_str = rpcmsg[10:14]
self.proc_id = int(self.proc_id_str)
self.msg_time_str = rpcmsg[14:29]
self.msg_time = timestamp2time(self.msg_time_str)
self.len_payload_str = rpcmsg[29:33]
self.len_payload = int(self.len_payload_str)
self.len_total = self.len_hdr + self.len_payload
self.payload = rpcmsg[self.len_hdr:self.len_hdr + self.len_payload]
except ValueError, e:
raise rpcMsgError("malformed TCS rpc message: '%s'" % rpcmsg)
except IndexError, e:
raise rpcMsgError("malformed TCS rpc message: '%s'" % rpcmsg)
def unpack_fe(self):
"""Unpack self.payload from a FE message."""
try:
(seq_num, status1, status2, result) = self.payload.split(',')
seq_num = int(seq_num)
status1 = int(status1)
status2 = int(status2)
result = int(result)
except ValueError, e:
raise rpcMsgError("SOSS RPC FT,FE payload format error: %s" %
str(e))
def unpack_de(self):
"""Unpack self.payload from a DE message."""
try:
statuslist = self.payload.split(',')
seq_num = statuslist.pop(0)
seq_num = int(seq_num)
statuslist = map(int, statuslist)
result = statuslist.pop(0)
except (ValueError, TypeError), e:
raise rpcMsgError("SOSS RPC DT,DE payload format error: %s" %
str(e))
def unpack_en(self):
"""Unpack self.payload from a EN message."""
try:
payload = self.payload.split(',')
seq_num = int(payload[0])
result = int(payload[1])
# 'application-level' payload
payload = ','.join(payload[2:])
except (ValueError, IndexError, TypeError), e:
raise rpcMsgError("SOSS RPC CT,EN payload format error: %s" %
str(e))
class SOSScmdRpcHeader(object):
"""SOSS RPC Header Class. This is a container for RPC header
parameters.
"""
def __init__(self, rpcmsg=None):
"""Constructor. Calls load(rpcmsg) to extract header parameters if
an RPC message is provided; else calls sethdr() to set default
header parameters."""
self.len_hdr = 128
if rpcmsg:
self.load(rpcmsg)
else:
self.sethdr()
def load(self, rpcmsg):
"""Extract RPC parameters from message header in rpcmsg into rpcHeader
variables.
If a ValueError or IndexError is detected, raises rpcMsgError."""
# Mark time received
self.timerecd = common.time2timestamp()
# Split data into fields and parse it
data = rpcmsg.split(',')
try:
self.len_total = int(data[0])
self.timesent = data[1].strip()
# mktime treats its argument as a localtime(), i.e. HST, so we
# must subtract 10 hours (36000.0 seconds):
self.msg_time = common.timestamp2time(self.timesent) - 36000.0
self.protocol_ver = data[2].strip()
self.seq_num = int(data[3])
self.sender = data[4].strip()
self.process_code = int(data[5])
# uid and gid can be blank, according to SOSS rpc spec, and often
# are, so we maintain them as strings, not ints.
self.uid = data[6].strip()
self.gid = data[7].strip()
self.receiver = data[8].strip()
self.pkt_type = data[9].strip()
self.msg_type = data[10].strip()
self.len_payload = int(data[11])
self.reserved = '%27s' % ''
self.payload = rpcmsg[self.len_hdr:]
except ValueError, e:
raise rpcMsgError("malformed SOSS rpc message: '%s'" % rpcmsg)
except IndexError, e:
raise rpcMsgError("malformed SOSS rpc message: '%s'" % rpcmsg)
def unpack_ds(self):
"""Unpack self.payload from a DS message."""
try:
# Unpack payload. At the end, _framelist_ will contain a list of
# tuples of the form (path, size, frameid)--one for each file to
# be transferred.
framelist = []
contents = self.payload.split(',')
while len(contents) > 0:
path = contents.pop(0).strip()
size = int(contents.pop(0))
frameid = contents.pop(0).strip().upper()
framelist.append((path, size, frameid))
except (ValueError, TypeError), e:
raise rpcMsgError("SOSS RPC DT,DS payload format error: %s" %
str(e))
def load(self, rpcmsg):
"""Extract RPC parameters from message header in rpcmsg into rpcHeader
variables. Use this method to parse a message that was received.
NOTE: for TCSL and TCSS interfaces (see STATint), rpcmsg is
an object that has the actual message imbedded in a "contents"
attribute; therefore, the header and payload fields must be
extracted from rpcmsg.contents. For all other TCS interfaces,
the header and payload fields must be extracted from rpcmsg.
If a ValueError or IndexError is detected, raises rpcMsgError."""
# Mark time received
self.timerecd = time2timestamp()
# Extract string message if necessary
if type(rpcmsg) != types.StringType:
rpcmsg = rpcmsg.contents
# Parse fields of header
#? print 'rpcmsg = ',rpcmsg
try:
self.msg_type = rpcmsg[0:2]
self.rcvr_host = rpcmsg[2:6]
self.send_host = rpcmsg[6:10]
self.proc_id_str = rpcmsg[10:14]
self.proc_id = int(self.proc_id_str)
self.msg_time_str = rpcmsg[14:29]
self.msg_time = timestamp2time(self.msg_time_str)
self.len_payload_str = rpcmsg[29:33]
self.len_payload = int(self.len_payload_str)
self.len_total = self.len_hdr + self.len_payload
self.payload = rpcmsg[self.len_hdr:self.len_hdr + self.len_payload]
except ValueError, e:
raise rpcMsgError("malformed TCS rpc message: '%s'" % rpcmsg)