PC World Komputer 2010 April/PCWorld0410.iso/hity wydania/Ubuntu 9.10 PL/karmelkowy-koliberek-desktop-9.10-i386-PL.iso/casper/filesystem.squashfs/usr/share/hplip/base/device.pyc

Python Compiled Bytecode | 2009-10-28 | 63.4 KB | 2,251 lines

# Source Generated with Decompyle++
# File: in.pyc (Python 2.6)

import socket
import re
import gzip
import os.path as os
import time
import urllib
import StringIO
import httplib
import struct
from g import *
from codes import *
import utils
import status
import pml
from prnt import pcl, ldl, cups
import models
import mdns
import slp
from strings import StringTable

try:
    import hpmudext
except ImportError:
    if not os.getenv('HPLIP_BUILD'):
        log.error('HPMUDEXT could not be loaded. Please check HPLIP installation.')
        sys.exit(1)

except:
    not os.getenv('HPLIP_BUILD')


try:
    MAX_BUFFER = hpmudext.HPMUD_BUFFER_SIZE
except AttributeError:
    MAX_BUFFER = 8192

dbus_avail = False
dbus_disabled = False

try:
    import dbus
    from dbus import lowlevel, SessionBus
    dbus_avail = True
except ImportError:
    log.warn('python-dbus not installed.')

import warnings
warnings.simplefilter('ignore', DeprecationWarning)
DEFAULT_PROBE_BUS = [
    'usb',
    'par',
    'cups']
VALID_BUSES = ('par', 'net', 'cups', 'usb')
VALID_BUSES_WO_CUPS = ('par', 'net', 'usb')
DEFAULT_FILTER = None
VALID_FILTERS = ('print', 'scan', 'fax', 'pcard', 'copy')
DEFAULT_BE_FILTER = ('hp',)
pat_deviceuri = re.compile('(.*):/(.*?)/(\\S*?)\\?(?:serial=(\\S*)|device=(\\S*)|ip=(\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}[^&]*)|zc=(\\S+))(?:&port=(\\d))?', re.IGNORECASE)
http_pat_url = re.compile('/(.*?)/(\\S*?)\\?(?:serial=(\\S*)|device=(\\S*))&loc=(\\S*)', re.IGNORECASE)
direct_pat = re.compile('direct (.*?) "(.*?)" "(.*?)" "(.*?)"', re.IGNORECASE)
pat_dynamic_ctr = re.compile('CTR:\\d*\\s.*;', re.IGNORECASE)
model_dat = models.ModelData()
ip_pat = re.compile('\\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\b', re.IGNORECASE)
dev_pat = re.compile('/dev/.+', re.IGNORECASE)
usb_pat = re.compile('(\\d+):(\\d+)', re.IGNORECASE)

class Event(object):

    def __init__(self, device_uri, printer_name, event_code, username = prop.username, job_id = 0, title = '', timedate = 0):
        self.device_uri = unicode(utils.xrstrip(device_uri, '\x00'))[:64].encode('utf-8')
        self.printer_name = unicode(utils.xrstrip(printer_name, '\x00'))[:64].encode('utf-8')
        self.event_code = int(event_code)
        self.username = unicode(utils.xrstrip(username, '\x00'))[:32].encode('utf-8')
        self.job_id = int(job_id)
        self.title = unicode(utils.xrstrip(title, '\x00'))[:64].encode('utf-8')
        if timedate:
            self.timedate = float(timedate)
        else:
            self.timedate = time.time()
        self.pipe_fmt = '64s64sI32sI64sf'
        self.dbus_fmt = 'ssisisd'


    def debug(self):
        log.debug('    device_uri=%s' % self.device_uri)
        log.debug('    printer_name=%s' % self.printer_name)
        log.debug('    event_code=%d' % self.event_code)
        log.debug('    username=%s' % self.username)
        log.debug('    job_id=%d' % self.job_id)
        log.debug('    title=%s' % self.title)
        log.debug('    timedate=%s' % self.timedate)


    def pack_for_pipe(self):
        return struct.pack(self.pipe_fmt, self.device_uri, self.printer_name, self.event_code, self.username, self.job_id, self.title, self.timedate)


    def send_via_pipe(self, fd, recipient = 'hpssd'):
        if fd is not None:
            log.debug('Sending event %d to %s (via pipe %d)...' % (self.event_code, recipient, fd))

            try:
                os.write(fd, self.pack_for_pipe())
                return True
            except OSError:
                log.debug('Failed.')
                return False


        None<EXCEPTION MATCH>OSError


    def send_via_dbus(self, session_bus, interface = 'com.hplip.StatusService'):
        if session_bus is not None and dbus_avail:
            log.debug('Sending event %d to %s (via dbus)...' % (self.event_code, interface))
            msg = lowlevel.SignalMessage('/', interface, 'Event')
            msg.append(signature = self.dbus_fmt, *self.as_tuple())
            session_bus.send_message(msg)



    def copy(self):
        return Event(*self.as_tuple())


    def __str__(self):
        return "<Event('%s', '%s', %d, '%s', %d, '%s', %f)>" % self.as_tuple()


    def as_tuple(self):
        return (self.device_uri, self.printer_name, self.event_code, self.username, self.job_id, self.title, self.timedate)



class FaxEvent(Event):

    def __init__(self, temp_file, event):
        Event.__init__(self, *event.as_tuple())
        self.temp_file = temp_file
        self.pipe_fmt = '64s64sI32sI64sfs'
        self.dbus_fmt = 'ssisisfs'


    def debug(self):
        log.debug('FAX:')
        Event.debug(self)
        log.debug('    temp_file=%s' % self.temp_file)


    def __str__(self):
        return "<FaxEvent('%s', '%s', %d, '%s', %d, '%s', %f, '%s')>" % self.as_tuple()


    def as_tuple(self):
        return (self.device_uri, self.printer_name, self.event_code, self.username, self.job_id, self.title, self.timedate, self.temp_file)



class DeviceIOEvent(Event):

    def __init__(self, bytes_written, event):
        Event.__init__(self, *event.as_tuple())
        self.bytes_written = bytes_written
        self.pipe_fmt = '64s64sI32sI64sfI'
        self.dbus_fmt = 'ssisisfi'


    def debug(self):
        log.debug('DEVIO:')
        Event.debug(self)
        log.debug('    bytes_written=%d' % self.bytes_written)


    def __str__(self):
        return "<DeviceIOEvent('%s', '%s', %d, '%s', %d, '%s', %f, '%d')>" % self.as_tuple()


    def as_tuple(self):
        return (self.device_uri, self.printer_name, self.event_code, self.username, self.job_id, self.title, self.timedate, self.bytes_written)



def init_dbus(dbus_loop = None):
    global dbus_avail, dbus_avail, dbus_avail, dbus_avail, dbus_avail
    service = None
    session_bus = None
    if not prop.gui_build:
        dbus_avail = False
        return (dbus_avail, None, None)
    if dbus_avail and not dbus_disabled:
        if os.getuid() == 0:
            log.debug('Not starting dbus: running as root.')
            dbus_avail = False
            return (dbus_avail, None, None)

        try:
            if dbus_loop is None:
                session_bus = dbus.SessionBus()
            else:
                session_bus = dbus.SessionBus(dbus_loop)
        except dbus.exceptions.DBusException:
            os.getuid() == 0
            e = os.getuid() == 0
            prop.gui_build
            if os.getuid() != 0:
                log.error('Unable to connect to dbus session bus.')
            else:
                log.debug('Unable to connect to dbus session bus (running as root?)')
            dbus_avail = False
            return (dbus_avail, None, None)


        try:
            log.debug('Connecting to com.hplip.StatusService (try #1)...')
            service = session_bus.get_object('com.hplip.StatusService', '/com/hplip/StatusService')
            dbus_avail = True
        except dbus.exceptions.DBusException:
            os.getuid() == 0
            e = os.getuid() == 0
            prop.gui_build

            try:
                os.waitpid(-1, os.WNOHANG)
            except OSError:
                pass

            path = utils.which('hp-systray')
            log.debug('Running hp-systray: %s --force-startup' % path)
            os.spawnlp(os.P_NOWAIT, path, 'hp-systray', '--force-startup')
            log.debug('Waiting for hp-systray to start...')
            time.sleep(1)
            t = 2
            while True:

                try:
                    log.debug('Connecting to com.hplip.StatusService (try #%d)...' % t)
                    service = session_bus.get_object('com.hplip.StatusService', '/com/hplip/StatusService')
                except dbus.exceptions.DBusException:
                    None if path else os.path.exists(path)
                    e = None if path else os.path.exists(path)
                    log.debug('Unable to connect to dbus. Is hp-systray running?')
                    t += 1
                    if t > 5:
                        log.warn('Unable to connect to dbus. Is hp-systray running?')
                        return (False, None, None)
                    time.sleep(1)
                    continue
                    t > 5

                log.debug('Connected.')
                dbus_avail = True
                break
                continue
                None if path else os.path.exists(path)
        except:
            os.getuid() == 0<EXCEPTION MATCH>dbus.exceptions.DBusException


    os.getuid() == 0
    return (dbus_avail, service, session_bus)


def makeURI(param, port = 1):
    (cups_uri, sane_uri, fax_uri) = ('', '', '')
    found = False
    if dev_pat.search(param) is not None:
        log.debug('Trying parallel with %s' % param)
        (result_code, uri) = hpmudext.make_par_uri(param)
        if result_code == hpmudext.HPMUD_R_OK and uri:
            log.debug('Found: %s' % uri)
            found = True
            cups_uri = uri
        else:
            log.debug('Not found.')
    elif usb_pat.search(param) is not None:
        match_obj = usb_pat.search(param)
        usb_bus_id = match_obj.group(1)
        usb_dev_id = match_obj.group(2)
        log.debug('Trying USB with bus=%s dev=%s...' % (usb_bus_id, usb_dev_id))
        (result_code, uri) = hpmudext.make_usb_uri(usb_bus_id, usb_dev_id)
        if result_code == ERROR_SUCCESS and uri:
            log.debug('Found: %s' % uri)
            found = True
            cups_uri = uri
        else:
            log.debug('Not found.')
    elif ip_pat.search(param) is not None:
        log.debug('Trying IP address %s' % param)
        (result_code, uri) = hpmudext.make_net_uri(param, port)
        if result_code == hpmudext.HPMUD_R_OK and uri:
            log.debug('Found: %s' % uri)
            found = True
            cups_uri = uri
        else:
            log.debug('Not found.')
    else:
        log.debug('Trying ZC hostname %s' % param)
        (result_code, uri) = hpmudext.make_zc_uri(param, port)
        if result_code == hpmudext.HPMUD_R_OK and uri:
            log.debug('Found: %s' % uri)
            found = True
            cups_uri = uri
        else:
            log.debug('Not found.')
    if not found:
        log.debug('Trying serial number %s' % param)
        devices = probeDevices(bus = [
            'usb',
            'par'])
        for d in devices:
            log.debug(d)

            try:
                (back_end, is_hp, bus, model, serial, dev_file, host, zc, port) = parseDeviceURI(d)
            except Error:
                continue

            if bus == 'par':
                mq = queryModelByURI(d)
                (result_code, device_id) = hpmudext.device_open(d, mq.get('io-mode', hpmudext.HPMUD_UNI_MODE))
                if result_code == hpmudext.HPMUD_R_OK:
                    (result_code, data) = hpmudext.get_device_id(device_id)
                    serial = parseDeviceID(data).get('SN', '')
                    hpmudext.close_device(device_id)


            if serial.lower() == param.lower():
                log.debug('Found: %s' % d)
                found = True
                cups_uri = d
                break
                continue
            log.debug('Not found.')


    if found:

        try:
            mq = queryModelByURI(cups_uri)
        except Error:
            e = None
            log.error('Error: %s' % e.msg)
            (cups_uri, sane_uri, fax_uri) = ('', '', '')

        if mq.get('support-type', SUPPORT_TYPE_NONE) > SUPPORT_TYPE_NONE:
            if mq.get('scan-type', 0):
                sane_uri = cups_uri.replace('hp:', 'hpaio:')

            if mq.get('fax-type', 0):
                fax_uri = cups_uri.replace('hp:', 'hpfax:')

        else:
            (cups_uri, sane_uri, fax_uri) = ('', '', '')
    else:
        (scan_uri, fax_uri) = ('', '')
    if cups_uri:
        user_conf.set('last_used', 'device_uri', cups_uri)

    return (cups_uri, sane_uri, fax_uri)


def queryModelByModel(model):
    model = models.normalizeModelName(model).lower()
    return model_dat[model]


def queryModelByURI(device_uri):

    try:
        (back_end, is_hp, bus, model, serial, dev_file, host, zc, port) = parseDeviceURI(device_uri)
    except Error:
        raise Error(ERROR_INVALID_DEVICE_URI)

    return queryModelByModel(model)


def probeDevices(bus = DEFAULT_PROBE_BUS, timeout = 10, ttl = 4, filter = DEFAULT_FILTER, search = '', net_search = 'mdns', back_end_filter = ('hp',)):
    num_devices = 0
    ret_devices = { }
    if search:

        try:
            search_pat = re.compile(search, re.IGNORECASE)
        log.error('Invalid search pattern. Search uses standard regular expressions. For more info, see: http://www.amk.ca/python/howto/regex/')
        search = ''


    for b in bus:
        log.debug('Probing bus: %s' % b)
        if b not in VALID_BUSES:
            log.error('Invalid bus: %s' % b)
            continue

        if b == 'net':
            if net_search == 'slp':

                try:
                    detected_devices = slp.detectNetworkDevices(ttl, timeout)
                except Error:
                    socket.error = None
                    log.error('An error occured during network probe.')
                    raise ERROR_INTERNAL
                except:
                    None<EXCEPTION MATCH>Error


            None<EXCEPTION MATCH>Error

            try:
                detected_devices = mdns.detectNetworkDevices(ttl, timeout)
            except Error:
                socket.error = None
                log.error('An error occured during network probe.')
                raise ERROR_INTERNAL

            for ip in detected_devices:
                update_spinner()
                hn = detected_devices[ip].get('hn', '?UNKNOWN?')
                num_devices_on_jd = detected_devices[ip].get('num_devices', 0)
                num_ports_on_jd = detected_devices[ip].get('num_ports', 1)
                if num_devices_on_jd > 0:
                    for port in range(num_ports_on_jd):
                        dev = detected_devices[ip].get('device%d' % (port + 1), '0')
                        if dev is not None and dev != '0':
                            device_id = parseDeviceID(dev)
                            model = models.normalizeModelName(device_id.get('MDL', '?UNKNOWN?'))
                            if num_ports_on_jd == 1:
                                if net_search == 'slp':
                                    device_uri = 'hp:/net/%s?ip=%s' % (model, ip)
                                else:
                                    device_uri = 'hp:/net/%s?zc=%s' % (model, hn)
                            elif net_search == 'slp':
                                device_uri = 'hp:/net/%s?ip=%s&port=%d' % (model, ip, port + 1)
                            else:
                                device_uri = 'hp:/net/%s?zc=%s&port=%d' % (model, hn, port + 1)
                            include = True
                            mq = queryModelByModel(model)
                            if not mq:
                                log.debug('Not found.')
                                include = False
                            elif int(mq.get('support-type', SUPPORT_TYPE_NONE)) == SUPPORT_TYPE_NONE:
                                log.debug('Not supported.')
                                include = False
                            elif filter not in (None, 'print', 'print-type'):
                                include = __checkFilter(filter, mq)

                            if include:
                                ret_devices[device_uri] = (model, model, hn)

                        include


        if b in ('usb', 'par'):
            if b == 'par':
                bn = hpmudext.HPMUD_BUS_PARALLEL
            else:
                bn = hpmudext.HPMUD_BUS_USB
            (result_code, data) = hpmudext.probe_devices(bn)
            if result_code == hpmudext.HPMUD_R_OK:
                for x in data.splitlines():
                    m = direct_pat.match(x)
                    if not m.group(1):
                        pass
                    uri = ''
                    if not m.group(2):
                        pass
                    mdl = ''
                    if not m.group(3):
                        pass
                    desc = ''
                    if not m.group(4):
                        pass
                    devid = ''
                    log.debug(uri)

                    try:
                        (back_end, is_hp, bb, model, serial, dev_file, host, zc, port) = parseDeviceURI(uri)
                    except Error:
                        continue

                    include = True
                    if mdl and uri and is_hp:
                        mq = queryModelByModel(model)
                        if not mq:
                            log.debug('Not found.')
                            include = False
                        elif int(mq.get('support-type', SUPPORT_TYPE_NONE)) == SUPPORT_TYPE_NONE:
                            log.debug('Not supported.')
                            include = False
                        elif filter not in (None, 'print', 'print-type'):
                            include = __checkFilter(filter, mq)

                        if include:
                            ret_devices[uri] = (mdl, desc, devid)

                    include


        result_code == hpmudext.HPMUD_R_OK
        if b == 'cups':
            cups_printers = cups.getPrinters()
            x = len(cups_printers)
            for p in cups_printers:
                device_uri = p.device_uri
                log.debug('%s: %s' % (device_uri, p.name))
                if device_uri != '':

                    try:
                        (back_end, is_hp, bs, model, serial, dev_file, host, zc, port) = parseDeviceURI(device_uri)
                    except Error:
                        log.debug('Unrecognized URI: %s' % device_uri)
                        continue

                    if not is_hp:
                        continue

                    include = True
                    mq = queryModelByModel(model)
                    if not mq:
                        include = False
                        log.debug('Not found.')
                    elif int(mq.get('support-type', SUPPORT_TYPE_NONE)) == SUPPORT_TYPE_NONE:
                        log.debug('Not supported.')
                        include = False
                    elif filter not in (None, 'print', 'print-type'):
                        include = __checkFilter(filter, mq)

                    if include:
                        ret_devices[device_uri] = (model, model, '')

                include


    probed_devices = { }
    for uri in ret_devices:
        num_devices += 1
        (mdl, model, devid_or_hn) = ret_devices[uri]
        include = True
        if search:
            match_obj = search_pat.search('%s %s %s %s' % (mdl, model, devid_or_hn, uri))
            if match_obj is None:
                log.debug("%s %s %s %s: Does not match search '%s'." % (mdl, model, devid_or_hn, uri, search))
                include = False


        if include:
            probed_devices[uri] = ret_devices[uri]
            continue

    cleanup_spinner()
    return probed_devices


def getSupportedCUPSDevices(back_end_filter = [
    'hp'], filter = DEFAULT_FILTER):
    devices = { }
    printers = cups.getPrinters()
    for p in printers:

        try:
            (back_end, is_hp, bus, model, serial, dev_file, host, zc, port) = parseDeviceURI(p.device_uri)
        except Error:
            continue

        if (back_end_filter == '*' and back_end in back_end_filter or 'hpaio' in back_end_filter or back_end == 'hp') and model and is_hp:
            include = True
            mq = queryModelByModel(model)
            if not mq:
                log.debug('Not found.')
                include = False
            elif int(mq.get('support-type', SUPPORT_TYPE_NONE)) == SUPPORT_TYPE_NONE:
                log.debug('Not supported.')
                include = False
            elif filter not in (None, 'print', 'print-type'):
                include = __checkFilter(filter, mq)

            if include:
                if 'hpaio' in back_end_filter:
                    d = p.device_uri.replace('hp:', 'hpaio:')
                else:
                    d = p.device_uri

                try:
                    devices[d]
                except KeyError:
                    devices[d] = [
                        p.name]

                devices[d].append(p.name)

        include

    return devices


def getSupportedCUPSPrinters(back_end_filter = [
    'hp'], filter = DEFAULT_FILTER):
    printer_list = []
    printers = cups.getPrinters()
    for p in printers:

        try:
            (back_end, is_hp, bus, model, serial, dev_file, host, zc, port) = parseDeviceURI(p.device_uri)
        except Error:
            continue

        if (back_end_filter == '*' or back_end in back_end_filter) and model and is_hp:
            include = True
            mq = queryModelByModel(model)
            if not mq:
                log.debug('Not found.')
                include = False
            elif int(mq.get('support-type', SUPPORT_TYPE_NONE)) == SUPPORT_TYPE_NONE:
                log.debug('Not supported.')
                include = False
            elif filter not in (None, 'print', 'print-type'):
                include = __checkFilter(filter, mq)

            if include:
                p.name = p.name.decode('utf-8')
                printer_list.append(p)

        include

    return printer_list


def getSupportedCUPSPrinterNames(back_end_filter = [
    'hp'], filter = DEFAULT_FILTER):
    printers = getSupportedCUPSPrinters(back_end_filter, filter)
    return [ p.name for p in printers ]


def getDeviceURIByPrinterName(printer_name, scan_uri_flag = False):
    if printer_name is None:
        return None
    device_uri = None
    printers = cups.getPrinters()
    for p in printers:

        try:
            (back_end, is_hp, bus, model, serial, dev_file, host, zc, port) = parseDeviceURI(p.device_uri)
        except Error:
            printer_name is None
            printer_name is None
            continue
        except:
            printer_name is None

        if is_hp and p.name == printer_name:
            if scan_uri_flag:
                device_uri = p.device_uri.replace('hp:', 'hpaio:')
            else:
                device_uri = p.device_uri
            break
            continue

    return device_uri


def parseDeviceID(device_id):
    d = { }
    x = _[1]
    for z in x:
        y = z.split(':')

        try:
            d.setdefault(y[0].strip(), y[1])
        continue
        except IndexError:
            []
            []
            []
            d.setdefault(y[0].strip(), None)
            continue



    d.setdefault('MDL', '')
    d.setdefault('SN', '')
    if 'SERIAL' in d:
        d['SN'] = d['SERIAL']
        del d['SERIAL']
    elif 'SERN' in d:
        d['SN'] = d['SERN']
        del d['SERN']

    if d['SN'].startswith('X'):
        d['SN'] = ''

    return d


def parseDynamicCounter(ctr_field, convert_to_int = True):
    (counter, value) = ctr_field.split(' ')

    try:
        if not utils.xlstrip(str(counter), '0'):
            pass
        counter = int('0')
        if convert_to_int:
            if not utils.xlstrip(str(value), '0'):
                pass
            value = int('0')
    except ValueError:
        if convert_to_int:
            (counter, value) = (0, 0)
        else:
            (counter, value) = (0, '')
    except:
        convert_to_int

    return (counter, value)


def parseDeviceURI(device_uri):
    m = pat_deviceuri.match(device_uri)
    if m is None:
        log.debug('Device URI %s is invalid/unknown' % device_uri)
        raise Error(ERROR_INVALID_DEVICE_URI)
    m is None
    if not m.group(1).lower():
        pass
    back_end = ''
    is_hp = back_end in ('hp', 'hpfax', 'hpaio')
    if not m.group(2).lower():
        pass
    bus = ''
    if bus not in ('usb', 'net', 'bt', 'fw', 'par'):
        log.debug('Device URI %s is invalid/unknown' % device_uri)
        raise Error(ERROR_INVALID_DEVICE_URI)
    bus not in ('usb', 'net', 'bt', 'fw', 'par')
    if not m.group(3):
        pass
    model = ''
    if not m.group(4):
        pass
    serial = ''
    if not m.group(5):
        pass
    dev_file = ''
    if not m.group(6):
        pass
    host = ''
    zc = ''
    if not host:
        if not m.group(7):
            pass
        zc = host = ''

    if not m.group(8):
        pass
    port = 1
    if bus == 'net':

        try:
            port = int(port)
        except (ValueError, TypeError):
            port = 1

        if port == 0:
            port = 1


    log.debug('%s: back_end:%s is_hp:%s bus:%s model:%s serial:%s dev_file:%s host:%s zc:%s port:%s' % (device_uri, back_end, is_hp, bus, model, serial, dev_file, host, zc, port))
    return (back_end, is_hp, bus, model, serial, dev_file, host, zc, port)


def isLocal(bus):
    return bus in ('par', 'usb', 'fw', 'bt')


def isNetwork(bus):
    return bus in ('net',)


def __checkFilter(filter, mq):
    for f, p in filter.items():
        if f is not None:
            (op, val) = p
            if not op(mq[f], val):
                return False
            continue
        op(mq[f], val)

    return True


def validateBusList(bus, allow_cups = True):
    for b in bus:
        if allow_cups:
            vb = VALID_BUSES
        else:
            vb = VALID_BUSES_WO_CUPS
        if b not in vb:
            log.error('Invalid bus name: %s' % b)
            return False

    return True


def validateFilterList(filter):
    if filter is None:
        return True
    for f in filter:
        if f not in VALID_FILTERS:
            log.error("Invalid term '%s' in filter list" % f)
            return False

    return True

inter_pat = re.compile('%(.*)%', re.IGNORECASE)
st = StringTable()
strings_init = False

def initStrings():
    global strings_init
    strings_init = True
    cycles = 0
    while True:
        found = False
        for s in st.string_table:
            (short_string, long_string) = st.string_table[s]
            short_replace = short_string
            long_replace = long_string

            try:
                short_match = inter_pat.match(short_string).group(1)
            except (AttributeError, TypeError):
                short_match = None

            if short_match is not None:
                found = True

                try:
                    (short_replace, dummy) = st.string_table[short_match]
                except KeyError:
                    log.error('String interpolation error: %s' % short_match)
                except:
                    None<EXCEPTION MATCH>KeyError


            None<EXCEPTION MATCH>KeyError

            try:
                long_match = inter_pat.match(long_string).group(1)
            except (AttributeError, TypeError):
                long_match = None

            if long_match is not None:
                found = True

                try:
                    (dummy, long_replace) = st.string_table[long_match]
                except KeyError:
                    log.error('String interpolation error: %s' % long_match)
                except:
                    None<EXCEPTION MATCH>KeyError


            None<EXCEPTION MATCH>KeyError
            if found:
                st.string_table[s] = (short_replace, long_replace)
                continue

        if not found:
            break
            continue
        cycles += 1
        if cycles > 1000:
            break
            continue


def queryString(string_id, typ = 0):
    if not strings_init:
        initStrings()

    s = st.string_table.get(str(string_id), ('', ''))[typ]
    if type(s) == type(''):
        return s
    return s()

AGENT_types = {
    AGENT_TYPE_NONE: 'invalid',
    AGENT_TYPE_BLACK: 'black',
    AGENT_TYPE_CMY: 'cmy',
    AGENT_TYPE_KCM: 'kcm',
    AGENT_TYPE_CYAN: 'cyan',
    AGENT_TYPE_MAGENTA: 'magenta',
    AGENT_TYPE_YELLOW: 'yellow',
    AGENT_TYPE_CYAN_LOW: 'photo_cyan',
    AGENT_TYPE_MAGENTA_LOW: 'photo_magenta',
    AGENT_TYPE_YELLOW_LOW: 'photo_yellow',
    AGENT_TYPE_GGK: 'photo_gray',
    AGENT_TYPE_BLUE: 'photo_blue',
    AGENT_TYPE_KCMY_CM: 'kcmy_cm',
    AGENT_TYPE_LC_LM: 'photo_cyan_and_photo_magenta',
    AGENT_TYPE_LG_PK: 'light_gray_and_photo_black',
    AGENT_TYPE_LG: 'light_gray',
    AGENT_TYPE_G: 'medium_gray',
    AGENT_TYPE_PG: 'photo_gray',
    AGENT_TYPE_C_M: 'cyan_and_magenta',
    AGENT_TYPE_K_Y: 'black_and_yellow',
    AGENT_TYPE_UNSPECIFIED: 'unspecified' }
AGENT_kinds = {
    AGENT_KIND_NONE: 'invalid',
    AGENT_KIND_HEAD: 'head',
    AGENT_KIND_SUPPLY: 'supply',
    AGENT_KIND_HEAD_AND_SUPPLY: 'cartridge',
    AGENT_KIND_TONER_CARTRIDGE: 'toner',
    AGENT_KIND_MAINT_KIT: 'maint_kit',
    AGENT_KIND_ADF_KIT: 'adf_kit',
    AGENT_KIND_DRUM_KIT: 'drum_kit',
    AGENT_KIND_TRANSFER_KIT: 'transfer_kit',
    AGENT_KIND_INT_BATTERY: 'battery',
    AGENT_KIND_UNKNOWN: 'unknown' }
AGENT_healths = {
    AGENT_HEALTH_OK: 'ok',
    AGENT_HEALTH_MISINSTALLED: 'misinstalled',
    AGENT_HEALTH_INCORRECT: 'incorrect',
    AGENT_HEALTH_FAILED: 'failed',
    AGENT_HEALTH_OVERTEMP: 'overtemp',
    AGENT_HEALTH_CHARGING: 'charging',
    AGENT_HEALTH_DISCHARGING: 'discharging' }
AGENT_levels = {
    AGENT_LEVEL_TRIGGER_MAY_BE_LOW: 'low',
    AGENT_LEVEL_TRIGGER_PROBABLY_OUT: 'low',
    AGENT_LEVEL_TRIGGER_ALMOST_DEFINITELY_OUT: 'out' }
string_cache = { }

class Device(object):

    def __init__(self, device_uri, printer_name = None, service = None, callback = None, disable_dbus = False):
        global dbus_disabled
        log.debug('Device URI: %s' % device_uri)
        log.debug('Printer: %s' % printer_name)
        dbus_disabled = disable_dbus
        if not disable_dbus:
            if service is None:
                (self.dbus_avail, self.service, session_bus) = init_dbus()
            else:
                self.dbus_avail = True
                self.service = service
        else:
            self.dbus_avail = False
            self.service = None
        self.last_event = None
        printers = cups.getPrinters()
        if device_uri is None and printer_name is not None:
            for p in printers:
                if p.name.lower() == printer_name.lower():
                    device_uri = p.device_uri
                    log.debug('Device URI: %s' % device_uri)
                    break
                    continue
            else:
                raise Error(ERROR_DEVICE_NOT_FOUND)
        self.device_uri = device_uri
        self.callback = callback
        self.device_type = DEVICE_TYPE_UNKNOWN
        if self.device_uri is None:
            raise Error(ERROR_DEVICE_NOT_FOUND)
        self.device_uri is None
        if self.device_uri.startswith('hp:'):
            self.device_type = DEVICE_TYPE_PRINTER
        elif self.device_uri.startswith('hpaio:'):
            self.device_type = DEVICE_TYPE_SCANNER
        elif self.device_uri.startswith('hpfax:'):
            self.device_type = DEVICE_TYPE_FAX


        try:
            (self.back_end, self.is_hp, self.bus, self.model, self.serial, self.dev_file, self.host, self.zc, self.port) = parseDeviceURI(self.device_uri)
        except Error:
            self.io_state = IO_STATE_NON_HP
            raise Error(ERROR_INVALID_DEVICE_URI)

        log.debug('URI: backend=%s, is_hp=%s, bus=%s, model=%s, serial=%s, dev=%s, host=%s, port=%d' % (self.back_end, self.is_hp, self.bus, self.model, self.serial, self.dev_file, self.host, self.port))
        self.model_ui = models.normalizeModelUIName(self.model)
        self.model = models.normalizeModelName(self.model)
        log.debug('Model/UI model: %s/%s' % (self.model, self.model_ui))
        self.mq = { }
        self.dq = { }
        self.icon = 'default_printer'
        self.cups_printers = []
        self.channels = { }
        self.device_id = -1
        self.r_values = None
        self.deviceID = ''
        self.panel_check = True
        self.io_state = IO_STATE_HP_READY
        self.is_local = isLocal(self.bus)
        self.hist = []
        self.supported = False
        self.queryModel()
        if not self.supported:
            log.error('Unsupported model: %s' % self.model)
            self.error_code = STATUS_DEVICE_UNSUPPORTED
            self.sendEvent(self.error_code)
        else:
            self.supported = True
        self.mq.update({
            'model': self.model,
            'model-ui': self.model_ui })
        self.error_state = ERROR_STATE_ERROR
        self.device_state = DEVICE_STATE_NOT_FOUND
        self.status_code = EVENT_ERROR_DEVICE_NOT_FOUND
        self.updateCUPSPrinters()
        if self.mq.get('fax-type', FAX_TYPE_NONE) != FAX_TYPE_NONE:
            self.dq.update({
                'fax-uri': self.device_uri.replace('hp:/', 'hpfax:/').replace('hpaio:/', 'hpfax:/') })

        if self.mq.get('scan-type', SCAN_TYPE_NONE) != SCAN_TYPE_NONE:
            self.dq.update({
                'scan-uri': self.device_uri.replace('hp:/', 'hpaio:/').replace('hpfax:/', 'hpaio:/') })

        self.dq.update({
            'back-end': self.back_end,
            'is-hp': self.is_hp,
            'serial': self.serial,
            'dev-file': self.dev_file,
            'host': self.host,
            'port': self.port,
            'cups-printers': ','.join(self.cups_printers),
            'status-code': self.status_code,
            'status-desc': '',
            'deviceid': '',
            'panel': 0,
            'panel-line1': '',
            'panel-line2': '',
            'device-state': self.device_state,
            'error-state': self.error_state,
            'device-uri': self.device_uri,
            'cups-uri': self.device_uri.replace('hpfax:/', 'hp:/').replace('hpaio:/', 'hp:/') })
        self.device_vars = {
            'URI': self.device_uri,
            'DEVICE_URI': self.device_uri,
            'SCAN_URI': self.device_uri.replace('hp:', 'hpaio:'),
            'SANE_URI': self.device_uri.replace('hp:', 'hpaio:'),
            'FAX_URI': self.device_uri.replace('hp:', 'hpfax:'),
            'PRINTER': self.first_cups_printer,
            'HOME': prop.home_dir }


    def sendEvent(self, event_code, printer_name = '', job_id = 0, title = ''):
        if self.dbus_avail and self.service is not None:

            try:
                log.debug('Sending event %d to hpssd...' % event_code)
                self.service.SendEvent(self.device_uri, printer_name, event_code, prop.username, job_id, title)
            except dbus.exceptions.DBusException:
                e = None
                log.debug('dbus call to SendEvent() failed.')
            except:
                None<EXCEPTION MATCH>dbus.exceptions.DBusException


        None<EXCEPTION MATCH>dbus.exceptions.DBusException


    def quit(self):
        pass


    def queryModel(self):
        if not self.mq:
            self.mq = queryModelByURI(self.device_uri)

        self.supported = bool(self.mq)
        if self.supported:
            for m in self.mq:
                self.__dict__[m.replace('-', '_')] = self.mq[m]




    def queryString(self, string_id):
        return queryString(string_id)


    def open(self, open_for_printing = False):
        if self.supported and self.io_state in (IO_STATE_HP_READY, IO_STATE_HP_NOT_AVAIL):
            prev_device_state = self.device_state
            self.io_state = IO_STATE_HP_NOT_AVAIL
            self.device_state = DEVICE_STATE_NOT_FOUND
            self.error_state = ERROR_STATE_ERROR
            self.status_code = EVENT_ERROR_DEVICE_NOT_FOUND
            self.device_id = -1
            self.open_for_printing = open_for_printing
            if open_for_printing:
                log.debug('Opening device: %s (for printing)' % self.device_uri)
                self.io_mode = self.mq.get('io-mode', hpmudext.HPMUD_UNI_MODE)
            else:
                log.debug('Opening device: %s (not for printing)' % self.device_uri)
                self.io_mode = self.mq.get('io-mfp-mode', hpmudext.HPMUD_UNI_MODE)
            log.debug('I/O mode=%d' % self.io_mode)
            (result_code, self.device_id) = hpmudext.open_device(self.device_uri, self.io_mode)
            if result_code != hpmudext.HPMUD_R_OK:
                self.error_state = ERROR_STATE_ERROR
                self.error_code = result_code + ERROR_CODE_BASE
                self.sendEvent(self.error_code)
                if result_code == hpmudext.HPMUD_R_DEVICE_BUSY:
                    log.error('Device busy: %s' % self.device_uri)
                else:
                    log.error('Unable to communicate with device (code=%d): %s' % (result_code, self.device_uri))
                self.last_event = Event(self.device_uri, '', EVENT_ERROR_DEVICE_NOT_FOUND, prop.username, 0, '', time.time())
                raise Error(ERROR_DEVICE_NOT_FOUND)
            result_code != hpmudext.HPMUD_R_OK
            log.debug('device-id=%d' % self.device_id)
            self.io_state = IO_STATE_HP_OPEN
            self.error_state = ERROR_STATE_CLEAR
            log.debug('Opened device: %s (backend=%s, is_hp=%s, bus=%s, model=%s, dev=%s, serial=%s, host=%s, port=%d)' % (self.back_end, self.device_uri, self.is_hp, self.bus, self.model, self.dev_file, self.serial, self.host, self.port))
            if prev_device_state == DEVICE_STATE_NOT_FOUND:
                self.device_state = DEVICE_STATE_JUST_FOUND
            else:
                self.device_state = DEVICE_STATE_FOUND
            self.getDeviceID()
            self.getSerialNumber()
            return self.device_id
        self.io_state in (IO_STATE_HP_READY, IO_STATE_HP_NOT_AVAIL)


    def close(self):
        if self.io_state == IO_STATE_HP_OPEN:
            log.debug('Closing device...')
            if len(self.channels) > 0:
                for c in self.channels.keys():
                    self._Device__closeChannel(c)


            result_code = hpmudext.close_device(self.device_id)
            log.debug('Result-code = %d' % result_code)
            self.channels.clear()
            self.io_state = IO_STATE_HP_READY



    def __openChannel(self, service_name):

        try:
            if self.io_state == IO_STATE_HP_OPEN:
                if service_name == hpmudext.HPMUD_S_PRINT_CHANNEL and not (self.open_for_printing):
                    self.close()
                    self.open(True)
                elif service_name != hpmudext.HPMUD_S_PRINT_CHANNEL and self.open_for_printing:
                    self.close()
                    self.open(False)

            else:
                self.open(service_name == hpmudext.HPMUD_S_PRINT_CHANNEL)
        except:
            log.error('unable to open channel')
            return -1

        service_name = service_name.upper()
        if service_name not in self.channels:
            log.debug('Opening %s channel...' % service_name)
            (result_code, channel_id) = hpmudext.open_channel(self.device_id, service_name)
            self.channels[service_name] = channel_id
            log.debug('channel-id=%d' % channel_id)
            return channel_id
        return self.channels[service_name]


    def openChannel(self, service_name):
        return self._Device__openChannel(service_name)


    def openPrint(self):
        return self._Device__openChannel(hpmudext.HPMUD_S_PRINT_CHANNEL)


    def openFax(self):
        return self._Device__openChannel(hpmudext.HPMUD_S_FAX_SEND_CHANNEL)


    def openPCard(self):
        return self._Device__openChannel(hpmudext.HPMUD_S_MEMORY_CARD_CHANNEL)


    def openEWS(self):
        return self._Device__openChannel(hpmudext.HPMUD_S_EWS_CHANNEL)


    def closePrint(self):
        return self._Device__closeChannel(hpmudext.HPMUD_S_PRINT_CHANNEL)


    def closePCard(self):
        return self._Device__closeChannel(hpmudext.HPMUD_S_MEMORY_CARD_CHANNEL)


    def closeFax(self):
        return self._Device__closeChannel(hpmudext.HPMUD_S_FAX_SEND_CHANNEL)


    def openPML(self):
        return self._Device__openChannel(hpmudext.HPMUD_S_PML_CHANNEL)


    def openWifiConfig(self):
        return self._Device__openChannel(hpmudext.HPMUD_S_WIFI_CHANNEL)


    def closePML(self):
        return self._Device__closeChannel(hpmudext.HPMUD_S_PML_CHANNEL)


    def closeEWS(self):
        return self._Device__closeChannel(hpmudext.HPMUD_S_EWS_CHANNEL)


    def openCfgUpload(self):
        return self._Device__openChannel(hpmudext.HPMUD_S_CONFIG_UPLOAD_CHANNEL)


    def closeCfgUpload(self):
        return self._Device__closeChannel(hpmudext.HPMUD_S_CONFIG_UPLOAD_CHANNEL)


    def openCfgDownload(self):
        return self._Device__openChannel(hpmudext.HPMUD_S_CONFIG_DOWNLOAD_CHANNEL)


    def closeCfgDownload(self):
        return self._Device__closeChannel(hpmudext.HPMUD_S_CONFIG_DOWNLOAD_CHANNEL)


    def openSoapFax(self):
        return self._Device__openChannel(hpmudext.HPMUD_S_SOAP_FAX)


    def closeSoapFax(self):
        return self._Device__closeChannel(hpmudext.HPMUD_S_SOAP_FAX)


    def closeWifiConfig(self):
        return self._Device__closeChannel(hpmudext.HPMUD_S_WIFI_CHANNEL)


    def __closeChannel(self, service_name):
        if self.io_state == IO_STATE_HP_OPEN:
            service_name = service_name.upper()
            if service_name in self.channels:
                log.debug('Closing %s channel...' % service_name)
                result_code = hpmudext.close_channel(self.device_id, self.channels[service_name])
                del self.channels[service_name]




    def closeChannel(self, service_name):
        return self._Device__closeChannel(service_name)


    def getDeviceID(self):
        needs_close = False
        if self.io_state != IO_STATE_HP_OPEN:

            try:
                self.open()
            except:
                return -1

            needs_close = True

        (result_code, data) = hpmudext.get_device_id(self.device_id)
        if result_code != hpmudext.HPMUD_R_OK:
            self.raw_deviceID = ''
            self.deviceID = { }
        else:
            self.raw_deviceID = data
            self.deviceID = parseDeviceID(data)
        if needs_close:
            self.close()

        return self.deviceID


    def getSerialNumber(self):
        if self.serial:
            return None

        try:
            self.serial = self.deviceID['SN']
        except KeyError:
            self.serial
            self.serial
        except:
            self.serial

        if self.serial:
            return None
        if self.serial is None:
            self.serial = ''



    def getThreeBitStatus(self):
        pass


    def getStatusFromDeviceID(self):
        self.getDeviceID()
        return status.parseStatus(parseDeviceID(self.raw_deviceID))


    def __parseRValues(self, r_value):
        r_value_str = str(r_value)
        r_value_str = ''.join([
            '0' * (9 - len(r_value_str)),
            r_value_str])
        rg = r_value_str[:3]
        rr = r_value_str[3:]
        r_value = int(rr)
        self.r_values = (r_value, r_value_str, rg, rr)
        return (r_value, r_value_str, rg, rr)


    def getRValues(self, r_type, status_type, dynamic_counters):
        (r_value, r_value_str, rg, rr) = (0, '000000000', '000', '000000')
        if r_type > 0 and dynamic_counters != STATUS_DYNAMIC_COUNTERS_NONE:
            if self.r_values is None:
                if self.dbus_avail:

                    try:
                        r_value = int(self.service.GetCachedIntValue(self.device_uri, 'r_value'))
                    except dbus.exceptions.DBusException:
                        e = None
                        log.debug('dbus call to GetCachedIntValue() failed.')
                        r_value = -1
                    except:
                        None<EXCEPTION MATCH>dbus.exceptions.DBusException


                None<EXCEPTION MATCH>dbus.exceptions.DBusException
                if r_value != -1:
                    log.debug('r_value=%d' % r_value)
                    (r_value, r_value_str, rg, rr) = self._Device__parseRValues(r_value)
                    return (r_value, r_value_str, rg, rr)

            if self.r_values is None:
                if status_type == STATUS_TYPE_S and self.is_local and dynamic_counters != STATUS_DYNAMIC_COUNTERS_PML_SNMP:

                    try:
                        r_value = self.getDynamicCounter(140)
                        if r_value is not None:
                            log.debug('r_value=%d' % r_value)
                            (r_value, r_value_str, rg, rr) = self._Device__parseRValues(r_value)
                            if self.dbus_avail:

                                try:
                                    self.service.SetCachedIntValue(self.device_uri, 'r_value', r_value)
                                except dbus.exceptions.DBusException:
                                    e = None
                                    log.debug('dbus call to SetCachedIntValue() failed.')
                                except:
                                    None<EXCEPTION MATCH>dbus.exceptions.DBusException


                            None<EXCEPTION MATCH>dbus.exceptions.DBusException
                        else:
                            log.error('Error attempting to read r-value (2).')
                            r_value = 0
                    except Error:
                        log.error('Error attempting to read r-value (1).')
                        r_value = 0
                    finally:
                        self.closePrint()

                elif status_type == STATUS_TYPE_S and dynamic_counters == STATUS_DYNAMIC_COUNTERS_PCL or not (self.is_local) or dynamic_counters == STATUS_DYNAMIC_COUNTERS_PML_SNMP:

                    try:
                        (result_code, r_value) = self.getPML(pml.OID_R_SETTING)
                        if r_value is not None:
                            log.debug('r_value=%d' % r_value)
                            (r_value, r_value_str, rg, rr) = self._Device__parseRValues(r_value)
                            if self.dbus_avail:

                                try:
                                    self.service.SetCachedIntValue(self.device_uri, 'r_value', r_value)
                                except dbus.exceptions.DBusException:
                                    e = None
                                    log.debug('dbus call to SetCachedIntValue() failed.')
                                except:
                                    None<EXCEPTION MATCH>dbus.exceptions.DBusException


                            None<EXCEPTION MATCH>dbus.exceptions.DBusException
                        else:
                            r_value = 0
                    finally:
                        self.closePML()


            else:
                (r_value, r_value_str, rg, rr) = self.r_values

        return (r_value, r_value_str, rg, rr)


    def __queryFax(self, quick = False, reread_cups_printers = False):
        io_mode = self.mq.get('io-mode', IO_MODE_UNI)
        self.status_code = STATUS_PRINTER_IDLE
        if io_mode != IO_MODE_UNI:
            if self.device_state != DEVICE_STATE_NOT_FOUND:
                if self.tech_type in (TECH_TYPE_MONO_INK, TECH_TYPE_COLOR_INK):

                    try:
                        self.getDeviceID()
                    except Error:
                        e = None
                        log.error('Error getting device ID.')
                        self.last_event = Event(self.device_uri, '', ERROR_DEVICE_IO_ERROR, prop.username, 0, '', time.time())
                        raise Error(ERROR_DEVICE_IO_ERROR)
                    except:
                        None<EXCEPTION MATCH>Error


                None<EXCEPTION MATCH>Error
                status_desc = self.queryString(self.status_code)
                self.dq.update({
                    'serial': self.serial,
                    'cups-printers': ','.join(self.cups_printers),
                    'status-code': self.status_code,
                    'status-desc': status_desc,
                    'deviceid': self.raw_deviceID,
                    'panel': 0,
                    'panel-line1': '',
                    'panel-line2': '',
                    'device-state': self.device_state,
                    'error-state': self.error_state })

            log.debug('Fax activity check...')
            (tx_active, rx_active) = status.getFaxStatus(self)
            if tx_active:
                self.status_code = STATUS_FAX_TX_ACTIVE
            elif rx_active:
                self.status_code = STATUS_FAX_RX_ACTIVE

            self.error_state = STATUS_TO_ERROR_STATE_MAP.get(self.status_code, ERROR_STATE_CLEAR)
            self.error_code = self.status_code
            self.sendEvent(self.error_code)

            try:
                self.dq.update({
                    'status-desc': self.queryString(self.status_code),
                    'error-state': self.error_state })
            except (KeyError, Error):
                self.dq.update({
                    'status-desc': '',
                    'error-state': ERROR_STATE_CLEAR })

            if self.panel_check:
                self.panel_check = bool(self.mq.get('panel-check-type', 0))

            status_type = self.mq.get('status-type', STATUS_TYPE_NONE)
            if self.panel_check and status_type in (STATUS_TYPE_LJ, STATUS_TYPE_S, STATUS_TYPE_VSTATUS) and io_mode != IO_MODE_UNI:
                log.debug('Panel check...')

                try:
                    (self.panel_check, line1, line2) = status.PanelCheck(self)
                finally:
                    self.closePML()

                self.dq.update({
                    'panel': int(self.panel_check),
                    'panel-line1': line1,
                    'panel-line2': line2 })

            if not quick and reread_cups_printers:
                self.updateCUPSPrinters()


        for d in self.dq:
            self.__dict__[d.replace('-', '_')] = self.dq[d]

        self.last_event = Event(self.device_uri, '', self.status_code, prop.username, 0, '', time.time())
        log.debug(self.dq)


    def updateCUPSPrinters(self):
        self.cups_printers = []
        log.debug('Re-reading CUPS printer queue information.')
        printers = cups.getPrinters()
        for p in printers:
            if self.device_uri == p.device_uri:
                self.cups_printers.append(p.name)
                self.state = p.state
                if self.io_state == IO_STATE_NON_HP:
                    self.model = p.makemodel.split(',')[0]

            self.io_state == IO_STATE_NON_HP

        self.dq.update({
            'cups-printers': ','.join(self.cups_printers) })

        try:
            self.first_cups_printer = self.cups_printers[0]
        except IndexError:
            self.first_cups_printer = ''



    def queryDevice(self, quick = False, reread_cups_printers = False):
        if not self.supported:
            self.dq = { }
            self.last_event = Event(self.device_uri, '', STATUS_DEVICE_UNSUPPORTED, prop.username, 0, '', time.time())
            return None
        if self.device_type == DEVICE_TYPE_FAX:
            return self._Device__queryFax(quick, reread_cups_printers)
        r_type = self.mq.get('r-type', 0)
        tech_type = self.mq.get('tech-type', TECH_TYPE_NONE)
        status_type = self.mq.get('status-type', STATUS_TYPE_NONE)
        battery_check = self.mq.get('status-battery-check', STATUS_BATTERY_CHECK_NONE)
        dynamic_counters = self.mq.get('status-dynamic-counters', STATUS_DYNAMIC_COUNTERS_NONE)
        io_mode = self.mq.get('io-mode', IO_MODE_UNI)
        io_mfp_mode = self.mq.get('io-mfp-mode', IO_MODE_UNI)
        status_code = STATUS_UNKNOWN
        agents = []
        if self.device_state != DEVICE_STATE_NOT_FOUND:
            if self.tech_type in (TECH_TYPE_MONO_INK, TECH_TYPE_COLOR_INK):

                try:
                    self.getDeviceID()
                except Error:
                    self.device_type == DEVICE_TYPE_FAX
                    e = self.device_type == DEVICE_TYPE_FAX
                    self.supported
                    log.error('Error getting device ID.')
                    self.last_event = Event(self.device_uri, '', ERROR_DEVICE_IO_ERROR, prop.username, 0, '', time.time())
                    raise Error(ERROR_DEVICE_IO_ERROR)
                except:
                    self.device_type == DEVICE_TYPE_FAX<EXCEPTION MATCH>Error


            self.device_type == DEVICE_TYPE_FAX
            status_desc = self.queryString(self.status_code)
            self.dq.update({
                'serial': self.serial,
                'cups-printers': ','.join(self.cups_printers),
                'status-code': self.status_code,
                'status-desc': status_desc,
                'deviceid': self.raw_deviceID,
                'panel': 0,
                'panel-line1': '',
                'panel-line2': '',
                'device-state': self.device_state,
                'error-state': self.error_state })
            status_block = { }
            if status_type == STATUS_TYPE_NONE:
                log.warn('No status available for device.')
                status_block = {
                    'status-code': STATUS_UNKNOWN }
            elif status_type in (STATUS_TYPE_VSTATUS, STATUS_TYPE_S):
                log.debug('Type 1/2 (S: or VSTATUS:) status')
                status_block = status.parseStatus(self.deviceID)
            elif status_type in (STATUS_TYPE_LJ, STATUS_TYPE_PML_AND_PJL):
                log.debug('Type 3/9 LaserJet PML(+PJL) status')
                status_block = status.StatusType3(self, self.deviceID)
            elif status_type == STATUS_TYPE_LJ_XML:
                log.debug('Type 6: LJ XML')
                status_block = status.StatusType6(self)
            elif status_type == STATUS_TYPE_PJL:
                log.debug('Type 8: LJ PJL')
                status_block = status.StatusType8(self)
            else:
                log.error('Unimplemented status type: %d' % status_type)
            if battery_check and io_mode != IO_MODE_UNI:
                log.debug('Battery check...')
                status.BatteryCheck(self, status_block, battery_check)

            if status_block:
                log.debug(status_block)
                self.dq.update(status_block)

                try:
                    status_block['agents']
                except KeyError:
                    pass

                agents = status_block['agents']
                del self.dq['agents']

            status_code = self.dq.get('status-code', STATUS_UNKNOWN)
            self.error_state = STATUS_TO_ERROR_STATE_MAP.get(status_code, ERROR_STATE_CLEAR)
            self.error_code = status_code
            self.sendEvent(self.error_code)

            try:
                self.dq.update({
                    'status-desc': self.queryString(status_code),
                    'error-state': self.error_state })
            except (KeyError, Error):
                self.dq.update({
                    'status-desc': '',
                    'error-state': ERROR_STATE_CLEAR })

            r_value = 0
            if not quick and status_type != STATUS_TYPE_NONE:
                if self.panel_check:
                    self.panel_check = bool(self.mq.get('panel-check-type', 0))

                if self.panel_check and status_type in (STATUS_TYPE_LJ, STATUS_TYPE_S, STATUS_TYPE_VSTATUS) and io_mode != IO_MODE_UNI:
                    log.debug('Panel check...')

                    try:
                        (self.panel_check, line1, line2) = status.PanelCheck(self)
                    finally:
                        self.closePML()

                    self.dq.update({
                        'panel': int(self.panel_check),
                        'panel-line1': line1,
                        'panel-line2': line2 })

                if dynamic_counters != STATUS_DYNAMIC_COUNTERS_NONE and io_mode != IO_MODE_UNI:
                    (r_value, r_value_str, rg, rr) = self.getRValues(r_type, status_type, dynamic_counters)
                else:
                    (r_value, r_value_str, rg, rr) = (0, '000000000', '000', '000000')
                self.dq.update({
                    'r': r_value,
                    'rs': r_value_str,
                    'rg': rg,
                    'rr': rr })

            if not quick and reread_cups_printers:
                self.updateCUPSPrinters()

            if not quick:
                if r_value > 0 and self.mq.get('r%d-agent1-kind' % r_value, 0) == 0:
                    r_value = 0
                    self.dq.update({
                        'r': r_value,
                        'rs': r_value_str,
                        'rg': rg,
                        'rr': rr })

                (a, aa) = (1, 1)
                while True:
                    mq_agent_kind = self.mq.get('r%d-agent%d-kind' % (r_value, a), -1)
                    if mq_agent_kind == -1:
                        break

                    mq_agent_type = self.mq.get('r%d-agent%d-type' % (r_value, a), 0)
                    mq_agent_sku = self.mq.get('r%d-agent%d-sku' % (r_value, a), '')
                    found = False
                    log.debug('Looking for kind=%d, type=%d...' % (mq_agent_kind, mq_agent_type))
                    for agent in agents:
                        agent_kind = agent['kind']
                        agent_type = agent['type']
                        if agent_kind == mq_agent_kind and agent_type == mq_agent_type:
                            found = True
                            break
                            continue

                    if found:
                        log.debug('found: r%d-kind%d-type%d' % (r_value, agent_kind, agent_type))
                        agent_health = agent.get('health', AGENT_HEALTH_OK)
                        agent_level = agent.get('level', 100)
                        agent_level_trigger = agent.get('level-trigger', AGENT_LEVEL_TRIGGER_SUFFICIENT_0)
                        log.debug('health=%d, level=%d, level_trigger=%d, status_code=%d' % (agent_health, agent_level, agent_level_trigger, status_code))
                        query = 'agent_%s_%s' % (AGENT_types.get(agent_type, 'unknown'), AGENT_kinds.get(agent_kind, 'unknown'))
                        agent_desc = self.queryString(query)
                        query = 'agent_health_ok'
                        if status_code == STATUS_PRINTER_IDLE or status_code == STATUS_PRINTER_OUT_OF_INK:
                            if (agent_health == AGENT_HEALTH_OK or agent_health == AGENT_HEALTH_FAIR_MODERATE or agent_kind == AGENT_KIND_HEAD) and agent_level_trigger >= AGENT_LEVEL_TRIGGER_MAY_BE_LOW:
                                query = 'agent_level_%s' % AGENT_levels.get(agent_level_trigger, 'unknown')
                                if tech_type in (TECH_TYPE_MONO_INK, TECH_TYPE_COLOR_INK):
                                    code = agent_type + STATUS_PRINTER_LOW_INK_BASE
                                else:
                                    code = agent_type + STATUS_PRINTER_LOW_TONER_BASE
                                self.dq['status-code'] = code
                                self.dq['status-desc'] = self.queryString(code)
                                self.dq['error-state'] = STATUS_TO_ERROR_STATE_MAP.get(code, ERROR_STATE_LOW_SUPPLIES)
                                self.error_code = code
                                self.sendEvent(self.error_code)
                                if agent_level_trigger in (AGENT_LEVEL_TRIGGER_PROBABLY_OUT, AGENT_LEVEL_TRIGGER_ALMOST_DEFINITELY_OUT):
                                    query = 'agent_level_out'
                                else:
                                    query = 'agent_level_low'
                                agent_health_desc = self.queryString(query)
                                self.dq.update({
                                    'agent%d-kind' % aa: agent_kind,
                                    'agent%d-type' % aa: agent_type,
                                    'agent%d-known' % aa: agent.get('known', False),
                                    'agent%d-sku' % aa: mq_agent_sku,
                                    'agent%d-level' % aa: agent_level,
                                    'agent%d-level-trigger' % aa: agent_level_trigger,
                                    'agent%d-ack' % aa: agent.get('ack', False),
                                    'agent%d-hp-ink' % aa: agent.get('hp-ink', False),
                                    'agent%d-health' % aa: agent_health,
                                    'agent%d-dvc' % aa: agent.get('dvc', 0),
                                    'agent%d-virgin' % aa: agent.get('virgin', False),
                                    'agent%d-desc' % aa: agent_desc,
                                    'agent%d-id' % aa: agent.get('id', 0),
                                    'agent%d-health-desc' % aa: agent_health_desc })
                            else:
                                query = 'agent_health_%s' % AGENT_healths.get(agent_health, AGENT_HEALTH_OK)
                                agent_health_desc = self.queryString(query)
                                self.dq.update({
                                    'agent%d-kind' % aa: agent_kind,
                                    'agent%d-type' % aa: agent_type,
                                    'agent%d-known' % aa: False,
                                    'agent%d-sku' % aa: mq_agent_sku,
                                    'agent%d-level' % aa: agent_level,
                                    'agent%d-level-trigger' % aa: agent_level_trigger,
                                    'agent%d-ack' % aa: False,
                                    'agent%d-hp-ink' % aa: False,
                                    'agent%d-health' % aa: agent_health,
                                    'agent%d-dvc' % aa: 0,
                                    'agent%d-virgin' % aa: False,
                                    'agent%d-desc' % aa: agent_desc,
                                    'agent%d-id' % aa: 0,
                                    'agent%d-health-desc' % aa: agent_health_desc })
                        aa += 1
                    else:
                        log.debug('Not found: %d' % a)
                    a += 1

        else:
            r_value = 0
            if r_type > 0 and self.r_values is not None:
                r_value = self.r_values[0]

            if r_value > 0 and self.mq.get('r%d-agent1-kind', 0) == 0:
                r_value = 0

            a = 1
            while True:
                mq_agent_kind = self.mq.get('r%d-agent%d-kind' % (r_value, a), 0)
                if mq_agent_kind == 0:
                    break

                mq_agent_type = self.mq.get('r%d-agent%d-type' % (r_value, a), 0)
                mq_agent_sku = self.mq.get('r%d-agent%d-sku' % (r_value, a), '')
                query = 'agent_%s_%s' % (AGENT_types.get(mq_agent_type, 'unknown'), AGENT_kinds.get(mq_agent_kind, 'unknown'))
                agent_desc = self.queryString(query)
                self.dq.update({
                    'agent%d-kind' % a: mq_agent_kind,
                    'agent%d-type' % a: mq_agent_type,
                    'agent%d-known' % a: False,
                    'agent%d-sku' % a: mq_agent_sku,
                    'agent%d-level' % a: 0,
                    'agent%d-level-trigger' % a: AGENT_LEVEL_TRIGGER_ALMOST_DEFINITELY_OUT,
                    'agent%d-ack' % a: False,
                    'agent%d-hp-ink' % a: False,
                    'agent%d-health' % a: AGENT_HEALTH_MISINSTALLED,
                    'agent%d-dvc' % a: 0,
                    'agent%d-virgin' % a: False,
                    'agent%d-health-desc' % a: self.queryString('agent_health_unknown'),
                    'agent%d-desc' % a: agent_desc,
                    'agent%d-id' % a: 0 })
                a += 1
        for d in self.dq:
            self.__dict__[d.replace('-', '_')] = self.dq[d]

        self.last_event = Event(self.device_uri, '', status_code, prop.username, 0, '', time.time())
        log.debug(self.dq)


    def isBusyOrInErrorState(self):

        try:
            self.queryDevice(quick = True)
        except Error:
            return True

        return self.error_state in (ERROR_STATE_ERROR, ERROR_STATE_BUSY)


    def isIdleAndNoError(self):

        try:
            self.queryDevice(quick = True)
        except Error:
            return False

        return self.error_state not in (ERROR_STATE_ERROR, ERROR_STATE_BUSY)


    def getPML(self, oid, desired_int_size = pml.INT_SIZE_INT):
        channel_id = self.openPML()
        (result_code, data, typ, pml_result_code) = hpmudext.get_pml(self.device_id, channel_id, pml.PMLToSNMP(oid[0]), oid[1])
        if pml_result_code > pml.ERROR_MAX_OK:
            log.debug('PML/SNMP GET %s failed (result code = 0x%x)' % (oid[0], pml_result_code))
            return (pml_result_code, None)
        converted_data = pml.ConvertFromPMLDataFormat(data, oid[1], desired_int_size)
        if log.is_debug():
            if oid[1] in (pml.TYPE_STRING, pml.TYPE_BINARY):
                log.debug('PML/SNMP GET %s (result code = 0x%x) returned:' % (oid[0], pml_result_code))
                log.log_data(data)
            else:
                log.debug('PML/SNMP GET %s (result code = 0x%x) returned: %s' % (oid[0], pml_result_code, repr(converted_data)))

        return (pml_result_code, converted_data)


    def setPML(self, oid, value):
        channel_id = self.openPML()
        value = pml.ConvertToPMLDataFormat(value, oid[1])
        (result_code, pml_result_code) = hpmudext.set_pml(self.device_id, channel_id, pml.PMLToSNMP(oid[0]), oid[1], value)
        if log.is_debug():
            if oid[1] in (pml.TYPE_STRING, pml.TYPE_BINARY):
                log.debug('PML/SNMP SET %s (result code = 0x%x) to:' % (oid[0], pml_result_code))
                log.log_data(value)
            else:
                log.debug('PML/SNMP SET %s (result code = 0x%x) to: %s' % (oid[0], pml_result_code, repr(value)))

        return pml_result_code


    def getDynamicCounter(self, counter, convert_to_int = True):
        dynamic_counters = self.mq.get('status-dynamic-counters', STATUS_DYNAMIC_COUNTERS_NONE)
        log.debug('Dynamic counters: %d' % dynamic_counters)
        if dynamic_counters != STATUS_DYNAMIC_COUNTERS_NONE:
            if dynamic_counters == STATUS_DYNAMIC_COUNTERS_LIDIL_0_5_4:
                self.printData(ldl.buildResetPacket(), direct = True)
                self.printData(ldl.buildDynamicCountersPacket(counter), direct = True)
            else:
                self.printData(pcl.buildDynamicCounter(counter), direct = True)
            (value, tries, times_seen, sleepy_time, max_tries) = (0, 0, 0, 0.1, 5)
            time.sleep(0.1)
            while True:
                if self.callback:
                    self.callback()

                sleepy_time += 0.1
                tries += 1
                time.sleep(sleepy_time)
                self.getDeviceID()
                if 'CTR' in self.deviceID and pat_dynamic_ctr.search(self.raw_deviceID) is not None:
                    (dev_counter, value) = parseDynamicCounter(self.deviceID['CTR'], convert_to_int)
                    if counter == dev_counter:
                        self.printData(pcl.buildDynamicCounter(0), direct = True)
                        if not convert_to_int:
                            value = '#' + value

                        return value

                if tries > max_tries:
                    if dynamic_counters == STATUS_DYNAMIC_COUNTERS_LIDIL_0_5_4:
                        self.printData(ldl.buildResetPacket())
                        self.printData(ldl.buildDynamicCountersPacket(counter), direct = True)
                    else:
                        self.printData(pcl.buildDynamicCounter(0), direct = True)
                    return None
                if dynamic_counters == STATUS_DYNAMIC_COUNTERS_LIDIL_0_5_4:
                    self.printData(ldl.buildResetPacket())
                    self.printData(ldl.buildDynamicCountersPacket(counter), direct = True)
                    continue
                tries > max_tries
                self.printData(pcl.buildDynamicCounter(counter), direct = True)
        else:
            raise Error(ERROR_DEVICE_DOES_NOT_SUPPORT_OPERATION)
        return dynamic_counters != STATUS_DYNAMIC_COUNTERS_NONE


    def readPrint(self, bytes_to_read, stream = None, timeout = prop.read_timeout, allow_short_read = False):
        return self._Device__readChannel(self.openPrint, bytes_to_read, stream, timeout, allow_short_read)


    def readPCard(self, bytes_to_read, stream = None, timeout = prop.read_timeout, allow_short_read = False):
        return self._Device__readChannel(self.openPCard, bytes_to_read, stream, timeout, allow_short_read)


    def readFax(self, bytes_to_read, stream = None, timeout = prop.read_timeout, allow_short_read = False):
        return self._Device__readChannel(self.openFax, bytes_to_read, stream, timeout, allow_short_read)


    def readCfgUpload(self, bytes_to_read, stream = None, timeout = prop.read_timeout, allow_short_read = False):
        return self._Device__readChannel(self.openCfgUpload, bytes_to_read, stream, timeout, allow_short_read)


    def readEWS(self, bytes_to_read, stream = None, timeout = prop.read_timeout, allow_short_read = True):
        return self._Device__readChannel(self.openEWS, bytes_to_read, stream, timeout, allow_short_read)


    def readSoapFax(self, bytes_to_read, stream = None, timeout = prop.read_timeout, allow_short_read = True):
        return self._Device__readChannel(self.openSoapFax, bytes_to_read, stream, timeout, allow_short_read)


    def readWifiConfig(self, bytes_to_read, stream = None, timeout = prop.read_timeout, allow_short_read = True):
        return self._Device__readChannel(self.openWifiConfig, bytes_to_read, stream, timeout, allow_short_read)


    def __readChannel(self, opener, bytes_to_read, stream = None, timeout = prop.read_timeout, allow_short_read = False):
        channel_id = opener()
        log.debug('Reading channel %d (device-id=%d, bytes_to_read=%d, allow_short=%s, timeout=%d)...' % (channel_id, self.device_id, bytes_to_read, allow_short_read, timeout))
        num_bytes = 0
        if stream is None:
            buffer = ''

        while True:
            (result_code, data) = hpmudext.read_channel(self.device_id, channel_id, bytes_to_read, timeout)
            log.debug('Result code=%d' % result_code)
            l = len(data)
            if result_code == hpmudext.HPMUD_R_IO_TIMEOUT:
                log.debug('I/O timeout')
                break

            if result_code != hpmudext.HPMUD_R_OK:
                log.error('Channel read error')
                raise Error(ERROR_DEVICE_IO_ERROR)
            result_code != hpmudext.HPMUD_R_OK
            if not l:
                log.debug('End of data')
                break

            if stream is None:
                buffer = ''.join([
                    buffer,
                    data])
            else:
                stream.write(data)
            num_bytes += l
            if self.callback is not None:
                self.callback()

            if num_bytes == bytes_to_read:
                log.debug('Full read complete.')
                break

            if allow_short_read and num_bytes < bytes_to_read:
                log.debug('Allowed short read of %d of %d bytes complete.' % (num_bytes, bytes_to_read))
                break
                continue
        if stream is None:
            log.debug('Returned %d total bytes in buffer.' % num_bytes)
            return buffer
        log.debug('Saved %d total bytes to stream.' % num_bytes)
        return num_bytes


    def writePrint(self, data):
        return self._Device__writeChannel(self.openPrint, data)


    def writePCard(self, data):
        return self._Device__writeChannel(self.openPCard, data)


    def writeFax(self, data):
        return self._Device__writeChannel(self.openFax, data)


    def writeEWS(self, data):
        return self._Device__writeChannel(self.openEWS, data)


    def writeCfgDownload(self, data):
        return self._Device__writeChannel(self.openCfgDownload, data)


    def writeSoapFax(self, data):
        return self._Device__writeChannel(self.openSoapFax, data)


    def writeWifiConfig(self, data):
        return self._Device__writeChannel(self.openWifiConfig, data)


    def __writeChannel(self, opener, data):
        channel_id = opener()
        buffer = data
        bytes_out = 0
        total_bytes_to_write = len(data)
        log.debug('Writing %d bytes to channel %d (device-id=%d)...' % (total_bytes_to_write, channel_id, self.device_id))
        while len(buffer) > 0:
            (result_code, bytes_written) = hpmudext.write_channel(self.device_id, channel_id, buffer[:prop.max_message_len])
            log.debug('Result code=%d' % result_code)
            if result_code != hpmudext.HPMUD_R_OK:
                log.error('Channel write error')
                raise Error(ERROR_DEVICE_IO_ERROR)
            result_code != hpmudext.HPMUD_R_OK
            buffer = buffer[prop.max_message_len:]
            bytes_out += bytes_written
            if self.callback is not None:
                self.callback()
                continue
        if total_bytes_to_write != bytes_out:
            raise Error(ERROR_DEVICE_IO_ERROR)
        total_bytes_to_write != bytes_out
        return bytes_out


    def writeEmbeddedPML(self, oid, value, style = 1, direct = True):
        if style == 1:
            func = pcl.buildEmbeddedPML2
        else:
            func = pcl.buildEmbeddedPML
        data = func(pcl.buildPCLCmd('&', 'b', 'W', pml.buildEmbeddedPMLSetPacket(oid[0], value, oid[1])))
        log.log_data(data)
        self.printData(data, direct = direct, raw = True)


    def printGzipFile(self, file_name, printer_name = None, direct = False, raw = True, remove = False):
        return self.printFile(file_name, printer_name, direct, raw, remove)


    def printParsedGzipPostscript(self, print_file, printer_name = None):

        try:
            os.stat(print_file)
        except OSError:
            log.error('File not found: %s' % print_file)
            return None

        (temp_file_fd, temp_file_name) = utils.make_temp_file()
        f = gzip.open(print_file, 'r')
        x = f.readline()
        while not x.startswith('%PY_BEGIN'):
            os.write(temp_file_fd, x)
            x = f.readline()
        sub_lines = []
        x = f.readline()
        while not x.startswith('%PY_END'):
            sub_lines.append(x)
            x = f.readline()
        SUBS = {
            'VERSION': prop.version,
            'MODEL': self.model_ui,
            'URI': self.device_uri,
            'BUS': self.bus,
            'SERIAL': self.serial,
            'IP': self.host,
            'PORT': self.port,
            'DEVNODE': self.dev_file }
        if self.bus == 'net':
            SUBS['DEVNODE'] = 'n/a'
        else:
            SUBS['IP'] = 'n/a'
            SUBS['PORT'] = 'n/a'
        for s in sub_lines:
            os.write(temp_file_fd, s % SUBS)

        os.write(temp_file_fd, f.read())
        f.close()
        os.close(temp_file_fd)
        self.printFile(temp_file_name, printer_name, direct = False, raw = False, remove = True)


    def printFile(self, file_name, printer_name = None, direct = False, raw = True, remove = False):
        is_gzip = os.path.splitext(file_name)[-1].lower() == '.gz'
        if printer_name is None:
            printer_name = self.first_cups_printer
            if not printer_name:
                raise Error(ERROR_NO_CUPS_QUEUE_FOUND_FOR_DEVICE)
            printer_name

        log.debug("Printing file '%s' to queue '%s' (gzip=%s, direct=%s, raw=%s, remove=%s)" % (file_name, printer_name, is_gzip, direct, raw, remove))
        if direct:
            if is_gzip:
                self.writePrint(gzip.open(file_name, 'r').read())
            else:
                self.writePrint(file(file_name, 'r').read())
        elif not utils.which('lpr'):
            lp_opt = ''
            if raw:
                lp_opt = '-oraw'

            if is_gzip:
                c = 'gunzip -c %s | lp -c -d%s %s' % (file_name, printer_name, lp_opt)
            else:
                c = 'lp -c -d%s %s %s' % (printer_name, lp_opt, file_name)
            log.debug(c)
            exit_code = os.system(c)
            if exit_code != 0:
                log.error('Print command failed with exit code %d!' % exit_code)

            if remove:
                os.remove(file_name)

        else:
            (raw_str, rem_str) = ('', '')
            if raw:
                raw_str = '-o raw'

            if remove:
                rem_str = '-r'

            if is_gzip:
                c = 'gunzip -c %s | lpr %s %s -P%s' % (file_name, raw_str, rem_str, printer_name)
            else:
                c = 'lpr -P%s %s %s %s' % (printer_name, raw_str, rem_str, file_name)
            log.debug(c)
            exit_code = os.system(c)
            if exit_code != 0:
                log.error('Print command failed with exit code %d!' % exit_code)



    def printTestPage(self, printer_name = None):
        return self.printParsedGzipPostscript(os.path.join(prop.home_dir, 'data', 'ps', 'testpage.ps.gz'), printer_name)


    def printData(self, data, printer_name = None, direct = True, raw = True):
        if direct:
            self.writePrint(data)
        else:
            (temp_file_fd, temp_file_name) = utils.make_temp_file()
            os.write(temp_file_fd, data)
            os.close(temp_file_fd)
            self.printFile(temp_file_name, printer_name, False, raw, remove = True)


    def cancelJob(self, jobid):
        cups.cancelJob(jobid)
        self.error_code = STATUS_PRINTER_CANCELING
        self.sendEvent(self.error_code)


    def queryHistory(self):
        result = []
        if self.dbus_avail:

            try:
                (device_uri, history) = self.service.GetHistory(self.device_uri)
            except dbus.exceptions.DBusException:
                e = None
                log.error('dbus call to GetHistory() failed.')
                return []

            history.reverse()
            for h in history:
                result.append(Event(*tuple(h)))


            try:
                self.error_code = result[0].event_code
            except IndexError:
                self.error_code = STATUS_UNKNOWN

            self.error_state = STATUS_TO_ERROR_STATE_MAP.get(self.error_code, ERROR_STATE_CLEAR)
        else:
            self.error_code = STATUS_UNKNOWN
            self.error_state = ERROR_STATE_CLEAR
        self.hist = result
        return result


    def getEWSUrl(self, url, stream):

        try:
            if self.is_local:
                url2 = '%s&loc=%s' % (self.device_uri.replace('hpfax:', 'hp:'), url)
                data = self
            else:
                url2 = 'http://%s%s' % (self.host, url)
                if self.zc:
                    (status, ip) = hpmudext.get_zc_ip_address(self.zc)
                    if status == hpmudext.HPMUD_R_OK:
                        url2 = 'http://%s%s' % (ip, url)


                data = None
            log.debug('Opening: %s' % url2)
            opener = LocalOpener({ })

            try:
                f = opener.open(url2, data)
            except Error:
                log.error('Status read failed: %s' % url2)
                stream.seek(0)
                stream.truncate()


            try:
                stream.write(f.read())
            finally:
                f.close()

        finally:
            self.closeEWS()



    def downloadFirmware(self, usb_bus_id = None, usb_device_id = None):
        ok = False
        filename = os.path.join(prop.data_dir, 'firmware', self.model.lower() + '.fw.gz')
        log.debug(filename)
        if os.path.exists(filename):
            log.debug("Downloading firmware file '%s'..." % filename)

            try:
                self.openPrint()
                bytes_written = self.writePrint(gzip.open(filename).read())
                log.debug('%s bytes downloaded.' % utils.commafy(bytes_written))
                self.closePrint()
                ok = True
                log.debug('OK')
            except Error:
                e = None
                log.error('An error occured: %s' % e.msg)
            except:
                None<EXCEPTION MATCH>Error


        None<EXCEPTION MATCH>Error
        log.error("Firmware file '%s' not found." % filename)
        return ok



class xStringIO(StringIO.StringIO):

    def makefile(self, x, y):
        return self



class LocalOpener(urllib.URLopener):

    def open_hp(self, url, dev):
        log.debug('open_hp(%s)' % url)
        match_obj = http_pat_url.search(url)
        if not match_obj.group(1):
            pass
        bus = ''
        if not match_obj.group(2):
            pass
        model = ''
        if not match_obj.group(3):
            pass
        serial = ''
        if not match_obj.group(4):
            pass
        device = ''
        if not match_obj.group(5):
            pass
        loc = ''
        dev.openEWS()
        dev.writeEWS('GET %s HTTP/1.0\nContent-Length:0\nHost:localhost\nUser-Agent:hplip\n\n' % loc)
        reply = xStringIO()
        while dev.readEWS(8192, reply, timeout = 1):
            pass
        reply.seek(0)
        log.log_data(reply.getvalue())
        response = httplib.HTTPResponse(reply)
        response.begin()
        if response.status != httplib.OK:
            raise Error(ERROR_DEVICE_STATUS_NOT_AVAILABLE)
        response.status != httplib.OK
        return response.fp