bldsystemtools/commonbldutils/AntiVirus.pm
changeset 0 83f4b4db085c
child 2 99082257a271
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bldsystemtools/commonbldutils/AntiVirus.pm	Tue Feb 02 01:39:43 2010 +0200
@@ -0,0 +1,494 @@
+package AntiVirus;
+use strict;
+
+use File::Copy;
+use Win32::Process;
+
+require Exporter;
+our @ISA = qw(Exporter);
+our @EXPORT_OK = qw{Start Stop Scan WaitTillAntiVirusStarts};
+
+# Start:
+# Description: attempts to start all supported anti-virus services/processes
+# Revised April 2007 to support McAfee only, Sophos and WebRoot having passed into history!
+# Arguments: none
+# Returns: none
+sub Start()
+{
+    my @iMcAfeeCommands = (
+    {AppName => 'net.exe', Params => 'start McAfeeFramework'},
+    {AppName => 'net.exe', Params => 'start McShield'},
+    {AppName => 'net.exe', Params => 'start McTaskManager'},
+    # Must supply full pathname, as these applications are not in "PATH"
+    {AppName => 'C:\\Program Files\\Network Associates\\Common Framework\\UpdaterUI.exe', Params => '/StartedFromRunKey'},
+    {AppName => 'C:\\Program Files\\Network Associates\\Common Framework\\UdaterUI.exe', Params => '/StartedFromRunKey'},
+    {AppName => 'C:\\Program Files\\McAfee\\Common Framework\\UpdaterUI.exe', Params => '/StartedFromRunKey'},
+    {AppName => 'C:\\Program Files\\McAfee\\Common Framework\\UdaterUI.exe', Params => '/StartedFromRunKey'},
+    {AppName => 'C:\\Program Files\\Common Files\\Network Associates\\TalkBack\\tbmon.exe', Params => ''},
+    {AppName => 'C:\\Program Files\\Network Associates\\VirusScan\\SHSTAT.EXE', Params => '/STANDALONE'},
+    {AppName => 'C:\\Program Files\\McAfee\\VirusScan\\SHSTAT.EXE', Params => '/STANDALONE'});
+
+    # Execute all "START" commands
+    for my $iCmd(@iMcAfeeCommands)
+    {
+        ExecuteProcess(20,$iCmd);
+    }
+
+}
+
+# WaitTillAntiVirusStarts
+# Description:  
+# Sometimes the  Antivirus::Stop() is invoked before the Antivirus services are started in the machine.
+# because of which the Antivirus starts when the build is ongoing, and the active Antivirus disrupts/slows down the build
+# 
+# If the Antivirus services fail to start beyond the specified timeout period,reports error and aborts the build.
+#
+# Arguments : Waiting time in seconds before next attempt is made to check AV service status, max number of attempts
+# Returns   :  returns nothing if AV running, aborts build if AV not running even after the waiting period
+sub WaitTillAntiVirusStarts{
+    my $waitingTime  = shift;
+    my $retries      = shift;
+	
+	my @waitList      = shift;
+     
+    my $defaultWaitingTime  = 30;  # Waiting time in seconds, before next attempt is made to check AV service status
+    my $defaultRetries      = 5;   # Try upto 5 times
+    
+    # assign default values to waitingtime,retries if values not specified
+    unless($waitingTime)
+	{
+        $waitingTime = $defaultWaitingTime;
+    }
+    unless($retries)
+	{
+        $retries = $defaultRetries;
+    } 
+	
+    my $attempt = 0; 
+    ## If AV not active, wait and retry
+    while(1)
+	{ 
+        if(IsAntiVirusActive(@waitList))
+		{
+            return; ## AV is active, all fine, proceed
+        }
+        $attempt++;
+        if($attempt > $retries) 
+		{
+            last;
+        } 
+        print  "REMARK: One or more Antivirus services not active yet (At ".scalar localtime().") \n";
+        print  "Waiting $waitingTime secs before rechecking status (Attempt $attempt of $retries) ...\n\n";
+        sleep($waitingTime);        
+    } 
+    
+    ## Antivirus is not active even after waiting $waitingTime secs $retries times, report error and abort the build
+    
+    print "ERROR: RealTimeBuild : Antivirus is not active even after waiting for $waitingTime secs x $retries attempts\n";
+    print "Antivirus cannot be reliably stopped,abandon build.";
+}
+
+
+# IsAntiVirusActive
+# Description:  
+# Runs 'net start' command to get a list of active services,checks if the Antivirus services are in the list
+# 
+# Arguments : None
+# Returns   : 
+# 			returns 0  even if one Antivirus Service is inactive
+# 			returns 1 if All AntiVirus Services active
+sub IsAntiVirusActive{
+
+	my @waitList = shift;
+	
+    my @AntiVirusServices = @waitList;
+
+    print "Checking Antivirus services status ...\n"; 
+    my $iCmd={AppName => 'net.exe', Params => 'start'};
+    
+    # Check if net.exe is accessible
+    unless(-e $iCmd->{'AppName'})
+    {
+       my $iExecutable = FindFileFromPath($iCmd->{'AppName'});
+        unless ($iExecutable)
+        {
+            print "REMARK: File not found $iCmd->{'AppName'}\n";
+            print "REMARK: Unable to check Antivirus status\n";
+            return 0; 
+        }
+        $iCmd->{'AppName'} = $iExecutable;
+    }
+ 
+    my $iCommand = "\"$iCmd->{'AppName'}\" $iCmd->{'Params'}" ;
+    print "Running: $iCommand\n";
+    my @iOutput = `$iCommand`;
+	 
+    return &ParseServiceStatus(\@iOutput,\@AntiVirusServices);
+}
+
+
+# ParseServiceStatus
+# Description:  
+# Runs  Compares output of 'net start' command to get a list of active services,checks if the Antivirus services are in the list
+# 
+# Arguments : Output of 'net start', Antivirus service list
+# Returns   : 
+# 			returns 0  even if one Antivirus Service is not in the list
+# 			returns 1 if All AntiVirus Services are in the list
+sub ParseServiceStatus($$)
+{
+    my $iOutputRef = shift;
+    my $iAntiVirusServiceList = shift;
+    foreach(@$iOutputRef) 
+    {
+        chomp ;
+        s/^[\t\s]+//g;  # strip whitespace at the beginning of the line
+    } 
+	
+    for my $serviceName(@$iAntiVirusServiceList) 
+    { 
+        my @match = grep (/^$serviceName$/i, @$iOutputRef); 
+        unless(@match)
+		{
+            print "Antivirus Service \'$serviceName\' inactive\n";
+            return 0;
+        }
+    }
+    print "All Antivirus services active.\n";  
+    return 1;  
+}
+
+
+# Stop:
+# Description: attempts to stop all supported anti-virus services/processes
+# Revised April 2007 to support McAfee only, Sophos and WebRoot having passed into history!
+# Arguments: none
+# Returns: none
+sub Stop($$)
+{
+	# Need to check if the Antivirus services is installed or enabled.
+	my @iMcAfeeServices = (
+    {AppName => 'net.exe', Params => 'stop McAfeeFramework', Services =>'McAfee Framework Service'},
+    {AppName => 'net.exe', Params => 'stop McShield', Services =>'Network Associates McShield'},
+    {AppName => 'net.exe', Params => 'stop McTaskManager', Services =>'Network Associates Task Manager'});
+
+	my @iPskillCommands = (    
+    {AppName => 'pskill.exe', Params => 'UpdaterUI.exe'},
+    {AppName => 'pskill.exe', Params => 'tbmon.exe'},
+    {AppName => 'pskill.exe', Params => 'shstat.exe'});
+
+	my @waitList = ();
+	my @iMcAfeeCommands = ();
+
+	for my $iTestCmd(@iMcAfeeServices)
+	{  	
+		my $iExecutable = $iTestCmd->{'AppName'};
+		my $iParams = $iTestCmd->{'Params'};
+		my $iServices = $iTestCmd->{'Services'};
+
+		my @testCommand = `$iExecutable $iParams 2>&1`;   
+		my $iResponse = 0;     
+
+		foreach my $iLine (@testCommand) 
+		{
+			if ($iLine =~ m/does not exist/i)
+			{ 
+				print "REMARK: $iServices not installed, just proceed.\n";
+				$iResponse = 1;	 
+			} 
+
+			if ($iLine =~ m/it is disabled/i)
+			{ 
+				print "REMARK: $iServices not enabled, just proceed.\n";
+				$iResponse = 1;            
+			} 
+
+			if (($iLine =~ m/service is not started/i ) or ($iLine =~ m/not valid for this service/i ))
+			{  
+				print "REMARK: $iServices not started, just wait.\n";
+				push @waitList, $iServices;
+				push @iMcAfeeCommands, {AppName =>$iExecutable, Params =>$iParams};
+				$iResponse = 1;
+			}
+
+			if ($iLine =~ m/service was stopped successfully/i)
+			{ 
+				print "REMARK: Stop Success! $iServices was stopped successfully directly by the test command, just proceed.\n";
+				$iResponse = 1;			
+			}	
+			
+			if ($iLine =~ m/service could not be stopped/i)
+			{ 
+				print "REMARK: Stop Success! $iServices could not be stopped at the moment but will be stopped successfully directly by the test command very soon later, just proceed.\n";
+				$iResponse = 1;			
+			}
+            
+            if ($iLine =~ m/System error 5 has occurred/i)
+			{ 
+				print "WARNING: Access to $iServices is denied, but this won't affect the build, just proceed.\n";
+				$iResponse = 1;			
+			}
+			
+		}    
+		unless ($iResponse)
+		{
+			print "ERROR: Unable to parse the output of $iExecutable for $iParams!\n";
+			foreach my $iLine (@testCommand) 
+		    {
+				print $iLine;
+			}
+			#push @waitList, $iServices;
+		    #push @iMcAfeeCommands, {AppName =>$iExecutable, Params =>$iParams};
+		}
+	}
+
+    # Wait for the waiting Antivirus services to load before attempting to stop the services
+	# If Antivirus fails to load after the grace period, the build should be aborted.
+	my $gWaitingTime = shift;
+	my $gRetries = shift;
+	if (@waitList)
+	{
+		WaitTillAntiVirusStarts($gWaitingTime, $gRetries, @waitList); 
+	}
+	
+	# Execute all "STOP" commands
+	push @iMcAfeeCommands, @iPskillCommands;
+	for my $iCmd(@iMcAfeeCommands)
+	{
+		ExecuteProcess(20,$iCmd);
+	}
+}
+
+# Scan:
+# Description: performs the virus scan on the specified directores
+# Revised April 2007 to support McAfee only, Sophos having passed into history!
+# Revised February 2008 to support further McAfee filename changes.
+# Arguments: directory in which to place scan output file (logfile);
+# array ref to array containing a list of the directories to scan
+# Returns: none
+sub Scan($$)
+{
+    my $iOutFilesDir = shift;
+    my $iDirsToScan = shift;
+
+    # Name(s) of output files. User only supplies directories
+    my $iOutFileName = 'Anti-virus';
+
+    # Define McAfee commands, newest version first. McAfee keep changing the names of their files. Thus if an
+    # executable is not found, we do not treat this as an error, we simply go on to thwe next command definition.
+    # Note: Must supply full pathname, as these applications are not in "PATH"
+    my @iMcAfeeCommands =(
+    # CSScan.exe send most of its output to STDOUT. So define file a second time for us to write this data
+    {AppName => 'C:\\Program Files\\McAfee\\VirusScan Enterprise\\csscan.exe',
+     Params => join(" ", @$iDirsToScan) . " /SUB /CLEAN /ALLAPPS /LOG $iOutFilesDir\\$iOutFileName.log",
+     LogFile => "$iOutFilesDir\\$iOutFileName"},  # Filename without .LOG extension
+    {AppName => 'C:\\Program Files\\Common Files\\Network Associates\\Engine\\scan.exe',
+     Params => join(" ", @$iDirsToScan) . " /SUB /NOBREAK /CLEAN /NORENAME /RPTCOR /RPTERR /REPORT=$iOutFilesDir\\$iOutFileName.log",
+     LogFile => ''} # The older "SCAN.EXE" writes everything to its report file. So no further logging required.
+    );
+   
+    print "Scanning: @$iDirsToScan\n"; 
+
+    # Execute "SCAN" commands in order until one is successful.
+    for my $iCmd(@iMcAfeeCommands)
+    {
+            # First remove/rename any existing output file. This is an unlikely situation in a normal build;
+            # but it could cause confusion if, for example, a scan was re-run manually.
+            unless (RemoveExistingFile($iCmd->{'LogFile'})) { next; }
+            if (RunCommand($iCmd)) { return; }     # Success
+    }
+    # Arriving at the end of this loop means that no command succeeded! Report failure!
+    print "WARNING: No Virus Scan accomplished. Possibly no suitable executable found.\n";
+}
+
+# RunCommand:
+# Description: Runs specified command using Perl "backticks"
+# passing its output for parsing to the sub ParseOutput().
+# Arguments: the command to execute as a hashref (filename of executable and parameters/args to pass to it)
+# Returns: TRUE on success
+sub RunCommand($)
+{
+    my $iCmd = shift;   # Hashref - Command spec.
+  
+    unless(-e $iCmd->{'AppName'})
+    {
+        print "REMARK: File not found $iCmd->{'AppName'}\n";
+        return 0;    # FALSE = Failure
+    }
+    my $iCommand = "\"$iCmd->{'AppName'}\" $iCmd->{'Params'}" ;
+    print "Running: $iCommand\n";
+    my @iOutput = `$iCommand`;
+    
+	# Parse the output flagging any errors
+    return &ParseOutput(\@iOutput,$iCmd->{'LogFile'});  # Return TRUE or FALSE
+}
+
+# ParseOutput:
+# Description: Parse output for warnings and errors.
+# The ScanLog-compatible "WARNING: " is prepended to any line containing
+# any of these messages or errors, and all lines are printed to STDOUT.
+# Arguments: reference to the array of output lines from executed command; Name of logfile (if any)
+# Returns: TRUE on Success
+# Remarks: note that errors in starting/stopping processes or services do not
+# constitute errors in terms of the build process. Failure to start or stop
+# the services will not affect the compilation except, at worst, to slow it
+# down if stopping the antivirus fails.
+sub ParseOutput($)
+{
+    my $iOutputRef = shift;
+    my $iLogFile = shift;
+
+    my $fh = \*LOGFILE;
+
+    if($iLogFile)
+    {
+        unless (open $fh, ">>$iLogFile.log")
+        {
+            print ("WARNING: Failed to open log file: $iLogFile");
+            return 0;   # FALSE = Failure
+        }
+    }
+    else
+    {
+        $fh = \*STDOUT;
+    }
+
+    for my $line(@$iOutputRef) # For each line of output...
+    {
+        $line =~ s/\s+$//;     # Remove trailing spaces (McAfee CSSCAN pads each line to 1024 chars!!)
+        # Does it match an error as returned by PSKill or net stop/start
+        if($line =~ /The specified service does not exist as an installed service\./i or
+           $line =~ /The .*? service is not started\./i or
+           $line =~ /The requested service has already been started./i or
+           $line =~ /The service name is invalid\./i or
+           $line =~ /Process does not exist\./i or
+           $line =~ /Unable to kill process/i or
+           $line =~ /error/i or
+           $line =~ /is not recognized as an internal or external command/i)
+        {
+            print "WARNING: $line\n";
+        }
+        else # No errors/warnings so just print the line on its own
+        {
+            print $fh "$line\n";
+        }
+    }
+    return 1;   # TRUE = Success
+}
+
+# ExecuteProcess:
+# Description: Executes specified command using Perl module Win32::Process
+# Arguments: the command to execute as a hashref (filename of executable and parameters/args to pass to it)
+# Returns: none
+sub ExecuteProcess
+{
+    my $iWaitSecs = shift;
+    my $iCmd = shift;           # Hashref - Command spec.
+  
+    my $iExecutable = $iCmd->{'AppName'};
+    unless(-e $iExecutable)
+    {
+        $iExecutable = FindFileFromPath($iCmd->{'AppName'});
+        unless ($iExecutable)
+        {
+            print "REMARK: File not found $iCmd->{'AppName'}\n";
+            return; 
+        }
+    }
+    my $iParams = $iCmd->{'Params'};
+
+    #  my $iFlags = $iDebug? CREATE_NEW_CONSOLE: DETACHED_PROCESS;
+    #  my $iFlags = $iDebug? 0: DETACHED_PROCESS;
+    my $iFlags = 0;
+
+    # Create a new Perl process (because fork does not work on some versions of Perl on Win32)
+    # $^X is the path to the Perl binary used to process this script
+    my $iProcess;
+    unless (Win32::Process::Create($iProcess, "$iExecutable", "\"$iExecutable\" $iParams", 0, $iFlags, "."))
+    {
+        print "WARNING: Failed to create process for $iExecutable $iParams.\n";
+        my $iExitCode = Win32::GetLastError();
+        ReportProcessError($iExitCode);
+        return;
+    }
+
+    my $iPID = $iProcess->GetProcessID(); 
+    print "\nExecuting: $iExecutable $iParams .....\n";
+    my $iRetVal = $iProcess->Wait($iWaitSecs * 1000);      # milliseconds. Return value is zero on timeout, else 1.
+    if ($iRetVal == 0)    # Wait timed out
+    {   # No error from child process (so far)
+        print "Spawned: $iExecutable $iParams - PID=$iPID.\n";
+        return 1;       # Success
+    }
+    else          # Child process terminated. Wait usually returns 1.
+    {             # Error in child process?? If so, get exit code
+        my $iExitCode;
+        $iProcess->GetExitCode($iExitCode);
+        unless($iExitCode)
+        {
+            print "Executed: $iExecutable $iParams - PID=$iPID.\n";
+            return 1;           # Success
+        }
+        print "REMARK: Failed in execution of $iExecutable $iParams.\n";
+        ReportProcessError($iExitCode);
+        return 0;
+    }
+}
+
+# ReportProcessError:
+# Description: prints error code to STDOUT followed by explanatory text, if avalable
+# Arguments: Windows error code
+# Returns: none
+sub ReportProcessError
+{
+    my $iExitCode = shift;
+
+    my $iMsg = Win32::FormatMessage($iExitCode);
+    if (defined $iMsg)
+    {
+        printf "ExitCode: 0x%04x = %s\n", $iExitCode, $iMsg;
+    }
+    else
+    {
+        printf "ExitCode: 0x%04x\n", $iExitCode;
+    }
+}
+
+# FindFileFromPath:
+# Description: Tries to find a file using PATH Environment Variable
+# Argument: Filename (Must include extension .EXE, .CMD etc)
+# Return: Full pathname of file, if found, otherwise undef
+sub FindFileFromPath
+{
+    my $iFilename = shift;
+    my $iPathname;
+    my @iPathDirs = split /;/, $ENV{'PATH'};
+    foreach my $iDir (@iPathDirs)
+    {
+        while ($iDir =~ s/\\$//){;}     # Remove any trailing backslash(es)
+        $iPathname = "$iDir\\$iFilename";
+        if (-e $iPathname)
+        {
+            return $iPathname;
+        }
+    }
+    return undef;
+}
+
+# RemoveExistingFile:
+# Description: If specified .LOG file exists, rename to .BAK
+# Arguments: File to check
+# Returns: TRUE on Success
+sub RemoveExistingFile
+{
+    my $iFilename = shift;       # Full pathname LESS extension
+
+    unless (-e "$iFilename.log") { return 1; }  # Success!
+
+    if (File::Copy::move("$iFilename.log","$iFilename.bak")) { return 1; }  # Success!
+
+    print "WARNING: Failed to rename $iFilename.log\nto $iFilename.bak because of:\n$!\n";
+    return 0;   # FALSE = Failure
+}
+
+1;