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168 lines
7.8 KiB
Python
168 lines
7.8 KiB
Python
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"""
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ms task/job file parser
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Author: Jeff Bryner
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Creation date: 2010-11
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References:
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http://msdn.microsoft.com/en-us/library/cc248286%28v=PROT.13%29.aspx
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http://msdn.microsoft.com/en-us/library/cc248287%28v=PROT.13%29.aspx
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http://technet.microsoft.com/en-us/library/bb490996.aspx
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"""
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from hachoir.parser import Parser
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from hachoir.field import (FieldSet, RootSeekableFieldSet,
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UInt32, UInt16,
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Bit, RawBits, RawBytes, Enum)
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from hachoir.core.endian import LITTLE_ENDIAN
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from hachoir.parser.common.win32 import PascalStringWin16, GUID
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class TaskTrigger(FieldSet):
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TRIGGER_TYPE = {
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0x00000000: "ONCE",
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0x00000001: "DAILY",
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0x00000002: "WEEKLY",
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0x00000003: "MONTHLYDATE",
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0x00000004: "MONTHLYDOW",
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0x00000005: "EVENT_ON_IDLE",
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0x00000006: "EVENT_AT_SYSTEMSTART",
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0x00000007: "EVENT_AT_LOGON"
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}
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def __init__(self, *args, **kwargs):
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FieldSet.__init__(self, *args, **kwargs)
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self._size = self["TriggerSize"].value * 8
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def createFields(self):
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yield UInt16(self, "TriggerSize")
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yield UInt16(self, "Reserved[]")
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yield UInt16(self, "BeginYear")
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yield UInt16(self, "BeginMonth")
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yield UInt16(self, "BeginDay")
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yield UInt16(self, "EndYear")
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yield UInt16(self, "EndMonth")
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yield UInt16(self, "EndDay")
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yield UInt16(self, "StartHour")
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yield UInt16(self, "StartMinute")
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yield UInt32(self, "MinutesDuration")
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yield UInt32(self, "MinutesInterval", "Time period between repeated trigger firings.")
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yield Bit(self, "HasEndDate", "Can task stop at some point in time?")
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yield Bit(self, "KillAtDurationEnd", "Can task be stopped at the end of the repetition period?")
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yield Bit(self, "TriggerDisabled", "Is this trigger disabled?")
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yield RawBits(self, "Unused[]", 29)
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yield Enum(UInt32(self, "TriggerType"), self.TRIGGER_TYPE)
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yield UInt16(self, "TriggerSpecific0")
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yield UInt16(self, "TriggerSpecific1")
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yield UInt16(self, "TriggerSpecific2")
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yield UInt16(self, "Padding")
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yield UInt16(self, "Reserved[]")
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yield UInt16(self, "Reserved[]")
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class MSTaskFile(Parser, RootSeekableFieldSet):
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PARSER_TAGS = {
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"id": "mstask",
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"category": "misc", # "archive", "audio", "container", ...
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# TODO: Example ("bmp",) to parse the file "image.bmp"
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"file_ext": ("job",),
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# TODO: Minimum file size (x bits, or x*8 in bytes)
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"min_size": 100,
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# TODO: Example: "A bitmap picture",
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"description": ".job 'at' file parser from ms windows",
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}
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endian = LITTLE_ENDIAN
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PRODUCT_VERSION = {
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0x0400: "Windows NT 4.0",
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0x0500: "Windows 2000",
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0x0501: "Windows XP",
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0x0600: "Windows Vista",
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0x0601: "Windows 7"
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}
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TASK_STATUS = {
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0x00041300: "Task Ready",
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0x00041301: "Task running",
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0x00041302: "Task disabled",
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0x00041303: "Task has not run",
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0x00041304: "Task has no more runs",
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0x00041305: "Task not scheduled",
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0x00041306: "Task terminated",
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0x00041307: "Task has no valid triggers",
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0x00041308: "Task contains only event triggers that do not have set run times",
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0x00041309: "Task trigger not found",
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0x0004130A: "One or more of the properties that are required to run this task have not been set.",
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0x0004130B: "There is no running instance of the task",
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0x0004130C: "Task Schedule Remoting Protocol service is not installed",
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0x0004130D: "Task object cannot be opened",
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0x0004130E: "Task object is invalid",
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0x0004130F: "No Account information could be found in Task Scheduler Remoting Protocol security database for the task indicated."
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}
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def validate(self):
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# The MAGIC for a task file is the windows version that created it
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# http://msdn.microsoft.com/en-us/library/2d1fbbab-fe6c-4ae5-bdf5-41dc526b2439%28v=PROT.13%29#id11
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if self['WindowsVersion'].value not in self.PRODUCT_VERSION:
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return "Invalid Product Version Field"
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return True
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def createFields(self):
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yield Enum(UInt16(self, "WindowsVersion"), self.PRODUCT_VERSION)
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yield UInt16(self, "FileVersion")
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yield GUID(self, "JobUUID")
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yield UInt16(self, "AppNameOffset", "App Name Length Offset")
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yield UInt16(self, "TriggerOffset", "Contains the offset in bytes within the .JOB file where the task triggers are located.")
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yield UInt16(self, "ErrorRetryCount", "Contains the number of execute attempts that are attempted for the task if the task fails to start.")
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yield UInt16(self, "ErrorRetryInterval", "Contains the interval, in minutes, between successive retries")
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yield UInt16(self, "IdleDeadline", "Contains a maximum time in minutes to wait for the machine to become idle for Idle Wait minutes.")
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yield UInt16(self, "IdleWait", "Contains a value in minutes. The machine remains idle for this many minutes before it runs the task")
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yield UInt32(self, "Priority")
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yield UInt32(self, "MaxRunTime", "Maximum run time in milliseconds")
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yield UInt32(self, "ExitCode", "This contains the exit code of the executed task upon the completion of that task.")
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yield Enum(UInt32(self, "Status"), self.TASK_STATUS)
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yield Bit(self, "Interactive", "Can Task interact with user?")
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yield Bit(self, "DeleteWhenDone", "Remove the task file when done?")
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yield Bit(self, "Disabled", "Is Task disabled?")
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yield Bit(self, "StartOnlyIfIdle", "Task begins only if computer is not in use at the scheduled time")
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yield Bit(self, "KillOnIdleEnd", "Kill task if user input is detected, terminating idle state?")
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yield Bit(self, "DontStartIfOnBatteries")
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yield Bit(self, "KillIfGoingOnBatteries")
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yield Bit(self, "RunOnlyIfDocked")
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yield Bit(self, "HiddenTask")
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yield Bit(self, "RunIfConnectedToInternet")
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yield Bit(self, "RestartOnIdleResume")
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yield Bit(self, "SystemRequired", "Can task cause system to resume or awaken if system is sleeping?")
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yield Bit(self, "OnlyIfUserLoggedOn")
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yield Bit(self, "ApplicationNameExists", "Does task have an application name defined?")
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yield Bit(self, "Unused[]")
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yield Bit(self, "Unused[]")
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yield RawBytes(self, "flags", 2)
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yield UInt16(self, "LastRunYear")
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yield UInt16(self, "LastRunMonth")
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yield UInt16(self, "LastRunWeekday", "Sunday=0,Saturday=6")
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yield UInt16(self, "LastRunDay")
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yield UInt16(self, "LastRunHour")
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yield UInt16(self, "LastRunMinute")
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yield UInt16(self, "LastRunSecond")
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yield UInt16(self, "LastRunMillisecond")
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yield UInt16(self, "RunningInstanceCount")
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yield PascalStringWin16(self, "AppNameLength", strip='\0')
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yield PascalStringWin16(self, "Parameters", strip='\0')
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yield PascalStringWin16(self, "WorkingDirectory", strip='\0')
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yield PascalStringWin16(self, "Author", strip='\0')
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yield PascalStringWin16(self, "Comment", strip='\0')
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yield UInt16(self, "UserDataSize")
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# todo: read optional userdata
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yield UInt16(self, "ReservedDataSize")
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if self["ReservedDataSize"].value == 8:
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yield Enum(UInt32(self, "StartError", "contains the HRESULT error from the most recent attempt to start the task"), self.TASK_STATUS)
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yield UInt32(self, "TaskFlags")
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elif self["ReservedDataSize"].value:
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yield RawBytes(self, "Reserved", self["ReservedDataSize"].value)
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yield UInt16(self, "TriggerCount", "size of the array of triggers")
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for i in range(self["TriggerCount"].value):
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yield TaskTrigger(self, "Trigger[]")
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