def __init__(self, cacheObject = None):
     # this is the cache, stuff here is only in storageDir
     self.cfg = config.initUp2dateConfig()
     self.log = up2dateLog.initLog()
     self.dir_list = [self.cfg["storageDir"]]
     self.ts =  transaction.initReadOnlyTransaction()
     PackageSource.__init__(self, cacheObject = cacheObject)

def readCachedLogin():
    """
    Read pickle info from a file
    Caches authorization info for connecting to the server.
    """
    log = up2dateLog.initLog()
    log.log_debug("readCachedLogin invoked")
    if not os.access(pcklAuthFileName, os.R_OK):
        log.log_debug("Unable to read pickled loginInfo at: %s" % pcklAuthFileName)
        return False
    pcklAuth = open(pcklAuthFileName, 'rb')
    try:
        data = pickle.load(pcklAuth)
    except EOFError:
        log.log_debug("Unexpected EOF. Probably an empty file, \
                       regenerate auth file")
        pcklAuth.close()
        return False
    pcklAuth.close()
    createdTime = data['time']
    li = data['loginInfo']
    currentTime = time.time()
    expireTime = createdTime + float(li['X-RHN-Auth-Expire-Offset'])
    #Check if expired, offset is stored in "X-RHN-Auth-Expire-Offset"
    log.log_debug("Checking pickled loginInfo, currentTime=", currentTime,
            ", createTime=", createdTime, ", expire-offset=",
            float(li['X-RHN-Auth-Expire-Offset']))
    if (currentTime > expireTime):
        log.log_debug("Pickled loginInfo has expired, created = %s, expire = %s." \
                %(createdTime, expireTime))
        return False
    _updateLoginInfo(li)
    log.log_debug("readCachedLogin(): using pickled loginInfo set to expire at ", expireTime)
    return True

def _initialize_dmi_data():
    """ Initialize _dmi_data unless it already exist and returns it """
    global _dmi_data, _dmi_not_available
    if _dmi_data is None:
        if _dmi_not_available:
            # do not try to initialize it again and again if not available
            return None
        else :
            dmixml = dmidecode.dmidecodeXML()
            dmixml.SetResultType(dmidecode.DMIXML_DOC)
            # Get all the DMI data and prepare a XPath context
            try:
                data = dmixml.QuerySection('all')
                dmi_warn = dmi_warnings()
                if dmi_warn:
                    dmidecode.clear_warnings()
                    log = up2dateLog.initLog()
                    log.log_debug("dmidecode warnings: " % dmi_warn)
            except:
                # DMI decode FAIL, this can happend e.g in PV guest
                _dmi_not_available = 1
                dmi_warn = dmi_warnings()
                if dmi_warn:
                    dmidecode.clear_warnings()
                return None
            _dmi_data = data.xpathNewContext()
    return _dmi_data

def doCall(method, *args, **kwargs):
    log = up2dateLog.initLog()
    cfg = config.initUp2dateConfig()
    ret = None

    attempt_count = 1
    attempts = cfg["networkRetries"] or 5

    while 1:
        failure = 0
        ret = None        
        try:
            ret = apply(method, args, kwargs)
        except KeyboardInterrupt:
            raise up2dateErrors.CommunicationError(
                "Connection aborted by the user")
        # if we get a socket error, keep tryingx2
        except (socket.error, socket.sslerror), e:
            log.log_me("A socket error occurred: %s, attempt #%s" % (
                e, attempt_count))
            if attempt_count >= attempts:
                if len(e.args) > 1:
                    raise up2dateErrors.CommunicationError(e.args[1])
                else:
                    raise up2dateErrors.CommunicationError(e.args[0])
            else:
                failure = 1
        except httplib.IncompleteRead:
            print "httplib.IncompleteRead" 
            raise up2dateErrors.CommunicationError("httplib.IncompleteRead")

def writeCachedLogin():
    """
    Pickle loginInfo to a file
    Returns:
    True    -- wrote loginInfo to a pickle file
    False   -- did _not_ write loginInfo to a pickle file
    """
    log = up2dateLog.initLog()
    log.log_debug("writeCachedLogin() invoked")
    if not loginInfo:
        log.log_debug("writeCachedLogin() loginInfo is None, so bailing.")
        return False
    data = {'time': time.time(),
            'loginInfo': loginInfo}

    pcklDir = os.path.dirname(pcklAuthFileName)
    if not os.access(pcklDir, os.W_OK):
        try:
            os.mkdir(pcklDir)
            os.chmod(pcklDir, 0700)
        except:
            log.log_me("Unable to write pickled loginInfo to %s" % pcklDir)
            return False
    pcklAuth = open(pcklAuthFileName, 'wb')
    os.chmod(pcklAuthFileName, 0600)
    pickle.dump(data, pcklAuth)
    pcklAuth.close()
    expireTime = data['time'] + float(loginInfo['X-RHN-Auth-Expire-Offset'])
    log.log_debug("Wrote pickled loginInfo at ", data['time'], " with expiration of ",
            expireTime, " seconds.")
    return True

def doCall(method, *args, **kwargs):
    log = up2dateLog.initLog()
    log.log_debug("rpcServer: Calling XMLRPC %s" % method.__dict__["_Method__name"])
    cfg = config.initUp2dateConfig()
    ret = None

    attempt_count = 1
    try:
        attempts = int(cfg["networkRetries"])
    except ValueError:
        attempts = 1
    if attempts <= 0:
        attempts = 1

    while 1:
        failure = 0
        ret = None
        try:
            ret = method(*args, **kwargs)
        except KeyboardInterrupt:
            raise up2dateErrors.CommunicationError(_("Connection aborted by the user")), None, sys.exc_info()[2]
        # if we get a socket error, keep tryingx2
        except (socket.error, socket.sslerror), e:
            log.log_me("A socket error occurred: %s, attempt #%s" % (e, attempt_count))
            if attempt_count >= attempts:
                if len(e.args) > 1:
                    raise up2dateErrors.CommunicationError(e.args[1]), None, sys.exc_info()[2]
                else:
                    raise up2dateErrors.CommunicationError(e.args[0]), None, sys.exc_info()[2]
            else:
                failure = 1
        except httplib.IncompleteRead:
            print "httplib.IncompleteRead"
            raise up2dateErrors.CommunicationError("httplib.IncompleteRead"), None, sys.exc_info()[2]

def login(systemId=None):
    server = rpcServer.getServer()
    log = up2dateLog.initLog()

    # send up the capabality info
    headerlist = clientCaps.caps.headerFormat()
    for (headerName, value) in headerlist:
        server.add_header(headerName, value)

    if systemId == None:
        systemId = getSystemId()

    if not systemId:
        return None
        
    maybeUpdateVersion()
    log.log_me("logging into up2date server")

    # the list of caps the client needs
    caps = capabilities.Capabilities()

    global loginInfo
    try:
        li = rpcServer.doCall(server.up2date.login, systemId)
    except rpclib.Fault, f:
        if abs(f.faultCode) == 49:
#            print f.faultString
            raise up2dateErrors.AbuseError(f.faultString)
        else:
            raise f

def updateLoginInfo():
    log = up2dateLog.initLog()
    log.log_me("updating login info")
    # NOTE: login() updates the loginInfo object
    login()
    if not loginInfo:
        raise up2dateErrors.AuthenticationError("Unable to authenticate")
    return loginInfo

def updateLoginInfo(timeout=None):
    log = up2dateLog.initLog()
    log.log_me("updateLoginInfo() login info")
    # NOTE: login() updates the loginInfo object
    login(forceUpdate=True, timeout=timeout)
    if not loginInfo:
        raise up2dateErrors.AuthenticationError("Unable to authenticate")
    return loginInfo

 def __init__(self, filename = None):
     self.repos = []
     self.fileName = filename
     self.log = up2dateLog.initLog()
     self.cfg = config.initUp2dateConfig()
     #just so we dont import repomd info more than onc
     self.setupRepomd = None
     if self.fileName:
         self.load()

def updatePackageProfile(timeout=None):
    """ get a list of installed packages and send it to rhnServer """
    log = up2dateLog.initLog()
    log.log_me("Updating package profile")
    packages = pkgUtils.getInstalledPackageList(getArch=1)
    s = rhnserver.RhnServer(timeout=timeout)
    if not s.capabilities.hasCapability('xmlrpc.packages.extended_profile', 2):
        # for older satellites and hosted - convert to old format
        packages = convertPackagesFromHashToList(packages)
    s.registration.update_packages(up2dateAuth.getSystemId(), packages)

def get_hal_system_and_smbios():
    try:
        if using_gudev:
            props = get_computer_info()
        else: 
            computer = get_hal_computer()
            props = computer.GetAllProperties()
    except Exception, e:
        log = up2dateLog.initLog()
        msg = "Error reading system and smbios information: %s\n" % (e)
        log.log_debug(msg)
        return {}

    def _request1(self, methodname, params):
        self.log = up2dateLog.initLog()
        while 1:
            try:
                ret = self._request(methodname, params)
            except rpclib.InvalidRedirectionError:
                raise
            except xmlrpclib.Fault:
                raise
            except httplib.BadStatusLine:
                self.log.log_me("Error: Server Unavailable. Please try later.")
                stdoutMsgCallback(_("Error: Server Unavailable. Please try later."))
                sys.exit(-1)
            except:
                server = self.serverList.next()
                if server == None:
                    # since just because we failed, the server list could
                    # change (aka, firstboot, they get an option to reset the
                    # the server configuration) so reset the serverList
                    self.serverList.resetServerIndex()
                    raise

                msg = "An error occurred talking to %s:\n" % self._host
                msg = msg + "%s\n%s\n" % (sys.exc_type, sys.exc_value)
                msg = msg + "Trying the next serverURL: %s\n" % self.serverList.server()
                self.log.log_me(msg)
                # try a different url

                # use the next serverURL
                import urllib

                typ, uri = urllib.splittype(self.serverList.server())
                typ = typ.lower()
                if typ not in ("http", "https"):
                    raise rpclib.InvalidRedirectionError(
                        "Redirected to unsupported protocol %s" % typ
                    ), None, sys.exc_info()[2]

                self._host, self._handler = urllib.splithost(uri)
                self._orig_handler = self._handler
                self._type = typ
                self._uri = self.serverList.server()
                if not self._handler:
                    self._handler = "/RPC2"
                self._allow_redirect = 1
                continue
            # if we get this far, we succedded
            break
        return ret

    def _request1(self, methodname, params):
        self.log = up2dateLog.initLog()
        while 1:
            try:
                ret = self._request(methodname, params)
            except rpclib.InvalidRedirectionError:
#                print "GOT a InvalidRedirectionError"
                raise
            except rpclib.Fault:
		raise 
            except:
                server = self.serverList.next()
                if server == None:
                    # since just because we failed, the server list could
                    # change (aka, firstboot, they get an option to reset the
                    # the server configuration) so reset the serverList
                    self.serverList.resetServerIndex()
                    raise

                msg = "An error occured talking to %s:\n" % self._host
                msg = msg + "%s\n%s\n" % (sys.exc_type, sys.exc_value)
                msg = msg + "Trying the next serverURL: %s\n" % self.serverList.server()
                self.log.log_me(msg)
                # try a different url

                # use the next serverURL
                import urllib
                typ, uri = urllib.splittype(self.serverList.server())
                typ = string.lower(typ)
                if typ not in ("http", "https"):
                    raise InvalidRedirectionError(
                        "Redirected to unsupported protocol %s" % typ)

#                print "gha2"
                self._host, self._handler = urllib.splithost(uri)
                self._orig_handler = self._handler
                self._type = typ
                if not self._handler:
                    self._handler = "/RPC2"
                self._allow_redirect = 1
                continue
            # if we get this far, we succedded
            break
        return ret

def readCachedLogin():
    """
    Read pickle info from a file
    Caches authorization info for connecting to the server.
    """
    log = up2dateLog.initLog()
    log.log_debug("readCachedLogin invoked")
    if not os.access(pcklAuthFileName, os.R_OK):
        log.log_debug("Unable to read pickled loginInfo at: %s" % pcklAuthFileName)
        return False
    pcklAuth = open(pcklAuthFileName, 'rb')
    try:
        data = pickle.load(pcklAuth)
    except EOFError:
        log.log_debug("Unexpected EOF. Probably an empty file, \
                       regenerate auth file")
        pcklAuth.close()
        return False
    pcklAuth.close()
    # Check if system_id has changed
    try:
        idVer = rpclib.xmlrpclib.loads(getSystemId())[0][0]['system_id']
        cidVer = "ID-%s" % data['loginInfo']['X-RHN-Server-Id']
        if idVer != cidVer:
            log.log_debug("system id version changed: %s vs %s" % (idVer, cidVer))
	    return False
    except:
	pass
    createdTime = data['time']
    li = data['loginInfo']
    currentTime = time.time()
    expireTime = createdTime + float(li['X-RHN-Auth-Expire-Offset'])
    #Check if expired, offset is stored in "X-RHN-Auth-Expire-Offset"
    log.log_debug("Checking pickled loginInfo, currentTime=", currentTime,
            ", createTime=", createdTime, ", expire-offset=",
            float(li['X-RHN-Auth-Expire-Offset']))
    if (currentTime > expireTime):
        log.log_debug("Pickled loginInfo has expired, created = %s, expire = %s." \
                %(createdTime, expireTime))
        return False
    _updateLoginInfo(li)
    log.log_debug("readCachedLogin(): using pickled loginInfo set to expire at ", expireTime)
    return True

def getChannels(force=None, label_whitelist=None):
    cfg = config.initUp2dateConfig()
    log = up2dateLog.initLog()
    global selected_channels
    # bz:210625 the selected_chs is never filled
    # so it assumes there is no channel although
    # channels are subscribed
    selected_channels = label_whitelist
    if not selected_channels and not force:

        ### mrepo: hardcode sources so we don't depend on /etc/sysconfig/rhn/sources
        # sources = sourcesConfig.getSources()
        sources = [{"url": "https://xmlrpc.rhn.redhat.com/XMLRPC", "type": "up2date"}]
        useRhn = 1

        if cfg.has_key("cmdlineChannel"):
            sources.append({"type": "cmdline", "label": "cmdline"})

        selected_channels = rhnChannelList()
        cfg["useRhn"] = useRhn

        li = up2dateAuth.getLoginInfo()
        # login can fail...
        if not li:
            return []

        tmp = li.get("X-RHN-Auth-Channels")
        if tmp == None:
            tmp = []
        for i in tmp:
            if label_whitelist and not label_whitelist.has_key(i[0]):
                continue

            channel = rhnChannel(label=i[0], version=i[1], type="up2date", url=cfg["serverURL"])
            selected_channels.addChannel(channel)

        if len(selected_channels.list) == 0:
            raise up2dateErrors.NoChannelsError(
                _("This system may not be updated until it is associated with a channel.")
            )

    return selected_channels

def get_hal_system_and_smbios():
    try:
        if using_gudev:
            props = get_computer_info()
        else:
            computer = get_hal_computer()
            props = computer.GetAllProperties()
    except Exception:
        log = up2dateLog.initLog()
        msg = "Error reading system and smbios information: %s\n" % (sys.exc_info()[1])
        log.log_debug(msg)
        return {}
    system_and_smbios = {}

    for key in props:
        if key.startswith('system'):
            system_and_smbios[unicode(key)] = unicode(props[key])

    system_and_smbios.update(get_smbios())
    return system_and_smbios

def getAdvisoryInfo(pkg, warningCallback=None):
    log = up2dateLog.initLog()
    cfg = config.initUp2dateConfig()
    # no errata for non rhn use
    if not cfg['useRhn']:
        return None
        
    s = rpcServer.getServer()

    ts = transaction.initReadOnlyTransaction()
    mi = ts.dbMatch('Providename', pkg[0])
    if not mi:
	return None

    # odd,set h to last value in mi. mi has to be iterated
    # to get values from it...
    h = None
    for h in mi:
        break

    info = None

    # in case of package less errata that somehow apply
    if h:
        try:
            pkgName = "%s-%s-%s" % (h['name'],
                                h['version'],
                                h['release'])
            log.log_me("getAdvisoryInfo for %s" % pkgName)
            info = rpcServer.doCall(s.errata.getPackageErratum,
                                    up2dateAuth.getSystemId(),
                                    pkg)
        except rpclib.Fault, f:
            if warningCallback:
                warningCallback(f.faultString)
            return None

def login(systemId=None, forceUpdate=False, timeout=None):
    log = up2dateLog.initLog()
    log.log_debug("login(forceUpdate=%s) invoked" % (forceUpdate))
    if not forceUpdate and not loginInfo:
        if readCachedLogin():
            return loginInfo

    server = rhnserver.RhnServer(timeout=timeout)

    # send up the capabality info
    headerlist = clientCaps.caps.headerFormat()
    for (headerName, value) in headerlist:
        server.add_header(headerName, value)

    if systemId == None:
        systemId = getSystemId()

    if not systemId:
        return None

    maybeUpdateVersion()
    log.log_me("logging into up2date server")

    li = server.up2date.login(systemId)

    # figure out if were missing any needed caps
    server.capabilities.validate()
    _updateLoginInfo(li) #update global var, loginInfo
    writeCachedLogin() #pickle global loginInfo

    if loginInfo:
        log.log_me("successfully retrieved authentication token "
                   "from up2date server")

    log.log_debug("logininfo:", loginInfo)
    return loginInfo

 def __repr__(self):
     msg = "RPM dependency error. The message was:\n" + self.errmsg
     log = up2dateLog.initLog()
     log.log_me(msg)
     return msg