def formatUTCTime(fieldset):
import datetime
value = fieldset["value"].value
year = int(value[0:2])
if year < 50:
year += 2000
else:
year += 1900
month = int(value[2:4])
day = int(value[4:6])
hour = int(value[6:8])
minute = int(value[8:10])
if value[-1] == "Z":
second = int(value[10:12])
dt = datetime.datetime(year, month, day, hour, minute, second)
else:
# Skip timezone...
dt = datetime.datetime(year, month, day, hour, minute)
return humanDatetime(dt)
def formatUTCTime(fieldset):
import datetime
value = fieldset["value"].value
year = int(value[0:2])
if year < 50:
year += 2000
else:
year += 1900
month = int(value[2:4])
day = int(value[4:6])
hour = int(value[6:8])
minute = int(value[8:10])
if value[-1] == "Z":
second = int(value[10:12])
dt = datetime.datetime(year, month, day, hour, minute, second)
else:
# Skip timezone...
dt = datetime.datetime(year, month, day, hour, minute)
return humanDatetime(dt)
def createDisplay(self):
return humanDatetime(self.value)
def dateToString(field):
return humanDatetime(dateToDatetime(field.value))
def createFields(self):
yield Enum(Bits(self, "marker_type", 4),
{0: "Simple",
1: "Int",
2: "Real",
3: "Date",
4: "Data",
5: "ASCII String",
6: "UTF-16-BE String",
8: "UID",
10: "Array",
13: "Dict",})
markertype = self['marker_type'].value
if markertype == 0:
# Simple (Null)
yield Enum(Bits(self, "value", 4),
{0: "Null",
8: "False",
9: "True",
15: "Fill Byte",})
if self['value'].display == "False":
self.xml=lambda prefix:prefix + "<false/>"
elif self['value'].display == "True":
self.xml=lambda prefix:prefix + "<true/>"
else:
self.xml=lambda prefix:prefix + ""
elif markertype == 1:
# Int
yield Bits(self, "size", 4, "log2 of number of bytes")
size=self['size'].value
# 8-bit (size=0), 16-bit (size=1) and 32-bit (size=2) numbers are unsigned
# 64-bit (size=3) numbers are signed
yield GenericInteger(self, "value", (size>=3), (2**size)*8)
self.xml=lambda prefix:prefix + "<integer>%s</integer>"%self['value'].value
elif markertype == 2:
# Real
yield Bits(self, "size", 4, "log2 of number of bytes")
if self['size'].value == 2: # 2**2 = 4 byte float
yield Float32(self, "value")
elif self['size'].value == 3: # 2**3 = 8 byte float
yield Float64(self, "value")
else:
# FIXME: What is the format of the real?
yield Bits(self, "value", (2**self['size'].value)*8)
self.xml=lambda prefix:prefix + "<real>%s</real>"%self['value'].value
elif markertype == 3:
# Date
yield Bits(self, "extra", 4, "Extra value, should be 3")
cvt_time=lambda v:datetime(2001,1,1) + timedelta(seconds=v)
yield displayHandler(Float64(self, "value"),lambda x:humanDatetime(cvt_time(x)))
self.xml=lambda prefix:prefix + "<date>%s</date>"%(cvt_time(self['value'].value).isoformat())
elif markertype == 4:
# Data
yield BPListSize(self, "size")
if self['size'].value:
yield Bytes(self, "value", self['size'].value)
self.xml=lambda prefix:prefix + "<data>\n%s\n%s</data>"%(self['value'].value.encode('base64').strip(),prefix)
else:
self.xml=lambda prefix:prefix + '<data></data>'
elif markertype == 5:
# ASCII String
yield BPListSize(self, "size")
if self['size'].value:
yield String(self, "value", self['size'].value, charset="ASCII")
self.xml=lambda prefix:prefix + "<string>%s</string>"%(self['value'].value.encode('iso-8859-1'))
else:
self.xml=lambda prefix:prefix + '<string></string>'
elif markertype == 6:
# UTF-16-BE String
yield BPListSize(self, "size")
if self['size'].value:
yield String(self, "value", self['size'].value*2, charset="UTF-16-BE")
self.xml=lambda prefix:prefix + "<string>%s</string>"%(self['value'].value.encode('utf-8'))
else:
self.xml=lambda prefix:prefix + '<string></string>'
elif markertype == 8:
# UID
yield Bits(self, "size", 4, "Number of bytes minus 1")
yield GenericInteger(self, "value", False, (self['size'].value + 1)*8)
self.xml=lambda prefix:prefix + "" # no equivalent?
elif markertype == 10:
# Array
yield BPListSize(self, "size")
size = self['size'].value
if size:
yield BPListArray(self, "value", size)
self.xml=lambda prefix:self['value'].createXML(prefix)
elif markertype == 13:
# Dict
yield BPListSize(self, "size")
yield BPListDict(self, "value", self['size'].value)
self.xml=lambda prefix:self['value'].createXML(prefix)
else:
yield Bits(self, "value", 4)
self.xml=lambda prefix:''
def dateToString(field):
return humanDatetime(dateToDatetime(field.value))
