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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,224 @@ | ||
| ################################################################################ | ||
| # | ||
| # This program is part of the SQLDataSource Zenpack for Zenoss. | ||
| # Copyright (C) 2012 Egor Puzanov. | ||
| # | ||
| # This program can be used under the GNU General Public License version 2 | ||
| # You can find full information here: http://www.zenoss.com/oss | ||
| # | ||
| ################################################################################ | ||
|
|
||
| __doc__="""pysambaClient | ||
| Gets performance data over WMI. | ||
| $Id: pysambaClient.py,v1.1 2012/08/08 19:15:52 egor Exp $""" | ||
|
|
||
| __version__ = "$Revision: 1.1 $"[11:-2] | ||
|
|
||
| from pysamba.library import * | ||
| from pysamba.wbem.wbem import * | ||
| from pysamba.wbem.Query import Query, QueryResult | ||
| from pysamba.twisted.callback import Callback, WMIFailure | ||
| from pysamba.twisted.reactor import eventContext | ||
|
|
||
| from twisted.internet import defer | ||
|
|
||
| import logging | ||
| log = logging.getLogger("zen.pysambaClient") | ||
|
|
||
| from datetime import datetime, timedelta | ||
| import re | ||
| DTPAT = re.compile(r'^(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})\.(\d{6})([+|-]\d{3})') | ||
| TDPAT = re.compile(r'^(\d{8})(\d{2})(\d{2})(\d{2})\.(\d{6})') | ||
|
|
||
| if not getattr(WbemQualifier, "_fields_", None): | ||
| WbemQualifier._fields_ = [ | ||
| ('name', CIMSTRING), | ||
| ('flavors', uint8_t), | ||
| ('cimtype', uint32_t), | ||
| ('value', CIMVAR), | ||
| ] | ||
|
|
||
| def convertArray(arr): | ||
| if not arr: return None | ||
| return [arr.contents.item[i] for i in range(arr.contents.count)] | ||
|
|
||
| def convert(v, typeval): | ||
| if typeval == CIM_SINT8: return v.v_sint8 | ||
| if typeval == CIM_UINT8: return v.v_uint8 | ||
| if typeval == CIM_SINT16: return v.v_sint16 | ||
| if typeval == CIM_UINT16: return v.v_uint16 | ||
| if typeval == CIM_SINT32: return v.v_sint32 | ||
| if typeval == CIM_UINT32: return v.v_uint32 | ||
| if typeval == CIM_SINT64: return v.v_sint64 | ||
| if typeval == CIM_UINT64: return v.v_sint64 | ||
| if typeval == CIM_REAL32: return float(v.v_uint32) | ||
| if typeval == CIM_REAL64: return float(v.v_uint64) | ||
| if typeval == CIM_BOOLEAN: return bool(v.v_boolean) | ||
| if typeval == CIM_DATETIME: | ||
| dt = str(v.v_datetime) | ||
| s = DTPAT.match(dt) | ||
| if s is not None: | ||
| tt = map(int, s.groups(0)) | ||
| return datetime(*tt[:7]) #+ timedelta(minutes=tt[7]) | ||
| s = TDPAT.match(dt) | ||
| if s is None: return str(dt) | ||
| try: return timedelta(**dict(zip( | ||
| ('days','hours','minutes','microseconds'),map(int, s.groups(0))))) | ||
| except Exception: return v.v_string or "" | ||
| if typeval == CIM_STRING: | ||
| return v.v_string or "" | ||
| if typeval == CIM_REFERENCE: | ||
| if not v.v_string.startswith(r'\\'): return v.v_string | ||
| return v.v_string.split(':', 1)[-1] | ||
| if typeval == CIM_CHAR16: | ||
| return v.v_string.decode('utf16') | ||
| if typeval == CIM_OBJECT: | ||
| return v.v_string or "" | ||
| if typeval == CIM_ARR_SINT8: return convertArray(v.a_sint8) | ||
| if typeval == CIM_ARR_UINT8: return convertArray(v.a_uint8) | ||
| if typeval == CIM_ARR_SINT16: return convertArray(v.a_sint16) | ||
| if typeval == CIM_ARR_UINT16: return convertArray(v.a_uint16) | ||
| if typeval == CIM_ARR_SINT32: return convertArray(v.a_sint32) | ||
| if typeval == CIM_ARR_UINT32: return convertArray(v.a_uint32) | ||
| if typeval == CIM_ARR_SINT64: return convertArray(v.a_sint64) | ||
| if typeval == CIM_ARR_UINT64: return convertArray(v.a_uint64) | ||
| if typeval == CIM_ARR_REAL32: return convertArray(v.a_real32) | ||
| if typeval == CIM_ARR_REAL64: return convertArray(v.a_real64) | ||
| if typeval == CIM_ARR_BOOLEAN: return convertArray(v.a_boolean) | ||
| if typeval == CIM_ARR_STRING: return convertArray(v.a_string) | ||
| if typeval == CIM_ARR_DATETIME: | ||
| return convertArray(v.contents.a_datetime) | ||
| if typeval == CIM_ARR_REFERENCE: | ||
| return convertArray(v.contents.a_reference) | ||
| return "Unsupported" | ||
|
|
||
| def wbemInstanceToPython(obj, qualifiers=False): | ||
| klass = obj.contents.obj_class.contents | ||
| inst = obj.contents.instance.contents | ||
| result = {} | ||
| kb = [] | ||
| result['__class'] = klass.__CLASS | ||
| result['__namespace'] = obj.contents.__NAMESPACE.replace("\\", '/') | ||
| for j in range(klass.__PROPERTY_COUNT): | ||
| prop = klass.properties[j] | ||
| value = convert(inst.data[j], prop.desc.contents.cimtype & CIM_TYPEMASK) | ||
| if qualifiers: | ||
| for qi in range(prop.desc.contents.qualifiers.count): | ||
| q = prop.desc.contents.qualifiers.item[qi].contents | ||
| if q.name in ['key'] and convert(q.value, q.cimtype) == True: | ||
| kb.append("%s=%s"%(prop.name, | ||
| type(value) is str and '"%s"'%value or value)) | ||
| if prop.name: | ||
| result[prop.name.lower()] = value | ||
| if qualifiers: | ||
| result['__path'] = "%s.%s"%(klass.__CLASS, ",".join(kb)) | ||
| return result | ||
|
|
||
| def fetchSome(obj, timeoutMs=-1, chunkSize=10, qualifiers=False): | ||
|
|
||
| assert obj.pEnum | ||
|
|
||
| ctx = library.IEnumWbemClassObject_SmartNext_send( | ||
| obj.pEnum, None, timeoutMs, chunkSize | ||
| ) | ||
|
|
||
| cback = Callback() | ||
| ctx.contents.async.fn = cback.callback | ||
|
|
||
| def fetch(results): | ||
| count = uint32_t() | ||
| objs = (POINTER(WbemClassObject)*chunkSize)() | ||
| result = library.IEnumWbemClassObject_SmartNext_recv( | ||
| ctx, obj.ctx, objs, byref(count) | ||
| ) | ||
|
|
||
| WERR_CHECK(result, obj._deviceId, "Retrieve result data.") | ||
|
|
||
| result = [] | ||
| for i in range(count.value): | ||
| result.append(wbemInstanceToPython(objs[i], qualifiers)) | ||
| library.talloc_free(objs[i]) | ||
| return result | ||
|
|
||
| d = cback.deferred | ||
| d.addCallback(fetch) | ||
| return d | ||
|
|
||
| def parseConnectionString(cs='', options={}): | ||
| try: args, kwargs = eval('(lambda *args,**kwargs:(args,kwargs))(%s)'%cs) | ||
| except: | ||
| args = [] | ||
| kwargs = {} | ||
| for arg in cs.split(','): | ||
| try: | ||
| if arg.strip().startswith("'"): | ||
| arg = arg.strip("' ") | ||
| raise | ||
| var, val = arg.strip().split('=', 1) | ||
| if val.startswith('\'') or val.startswith('"'): | ||
| kwargs[var.strip()] = val.strip('\'" ') | ||
| elif val.lower() == 'true': | ||
| kwargs[var.strip()] = True | ||
| elif val.lower() == 'false': | ||
| kwargs[var.strip()] = False | ||
| else: | ||
| kwargs[var.strip()] = float(val.strip()) | ||
| except: args.append(arg) | ||
| kwargs.update(options) | ||
| return args, kwargs | ||
|
|
||
| class pysambaClient(object): | ||
|
|
||
| def __init__(self, cs): | ||
| """ | ||
| @type cs: string | ||
| @param cs: connection string | ||
| """ | ||
| self.cs = cs | ||
| self._wmi = None | ||
| self.ready = None | ||
|
|
||
| def connect(self): | ||
| args, kwargs = parseConnectionString(self.cs) | ||
| lkwargs = dict((k.lower(), v) for k,v in kwargs.iteritems()) | ||
| host = lkwargs.get("host") or "" | ||
| user = lkwargs.get("user") or "" | ||
| namespace = lkwargs.get("namespace") or "root\\cimv2" | ||
| log.debug("connect to %s, user %r", host, user) | ||
| if not user: | ||
| log.warning("Windows login name is unset: " | ||
| "please specify zWinUser and " | ||
| "zWinPassword zProperties before adding devices.") | ||
| return defer.fail("Username is empty") | ||
| self._wmi = Query() | ||
| creds = '%s%%%s' % (user, lkwargs.get("password", "")) | ||
| return self._wmi.connect(eventContext, host, host, creds, namespace) | ||
|
|
||
| def close(self): | ||
| if self._wmi: | ||
| self._wmi.close() | ||
| self._wmi.pWS = None | ||
| self._wmi = None | ||
| self.ready = None | ||
|
|
||
| def _fetchResults(self, results, timeout, qualifiers, result=None, rows=[]): | ||
| if not results: | ||
| return defer.succeed(rows) | ||
| elif isinstance(results, QueryResult): | ||
| rows = [] | ||
| result = results | ||
| else: | ||
| rows.extend(results) | ||
| d = fetchSome(result, timeoutMs=timeout, qualifiers=qualifiers) | ||
| d.addCallback(self._fetchResults, timeout, qualifiers, result, rows) | ||
| return d | ||
|
|
||
| def query(self, task): | ||
| timeout = task.timeout * 1000 | ||
| qualifiers = task.ds == '' | ||
| rows = [] | ||
| d = self._wmi.query(task.sqlp) | ||
| d.addCallback(self._fetchResults, timeout, qualifiers, rows) | ||
| return d |
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