Subversion Repositories camp_sysinfo_client_3

#!/usr/bin/env perl

# v1.2.0 20161022 RWR

# moved makeConfig here so it is usable by install and configure

package sysinfoconf;

our $VERSION = '1.2.0';

use warnings;

use strict;  

use Data::Dumper;

use File::Basename;

use Exporter;

our @ISA = qw( Exporter );

our @EXPORT = qw( $clientName $serialNumber $hostname @moduleDirs @scriptDirs 

                  $transports $sysinfo3 %sendTypes $binDir $moduleDir

                  $scriptDir $confDir $binName $confName

                  &showConf &transportsToConfig &getAnswer &yesno  

                  &writeConfig &processParameters $TESTING &checkDirectoryExists

                  &runCommand &setDryRun &enableModules &makeConfig

                );

our $TESTING = 0;

our $dryRun;

our $clientName = '';

our $serialNumber = '';

our $hostname = '';

our @moduleDirs = ( '/opt/camp/sysinfo-client/modules', '/etc/camp/sysinfo-client/modules' );

our @scriptDirs = ( '/opt/camp/sysinfo-client/scripts', '/etc/camp/sysinfo-client/scripts' );

our $transports = {}; # holds transportation mechanisms

# the following are keys which are specific to the different transport channels

our $sysinfo3 = '/etc/camp/sysinfo-client/sysinfo-client.conf';

our $binDir = '/opt/camp/sysinfo-client';

our $moduleDir = $binDir . '/modules';

our $scriptDir = $binDir . '/scripts';

our $confDir = '/etc/camp/sysinfo-client';

our $binName = 'sysinfo-client';

our $confName = 'sysinfo-client.conf';

sub setDryRun {

   $dryRun = shift;

}

our %sendTypes = ( 

                  'SendEmail' =>    { 'sendScript' => 'sendEmailScript',

                                      'keys' => 

                                      [

                                        'mailTo',

                                        'mailSubject',

                                        'mailCC',

                                        'mailBCC',

                                        'mailServer',

                                        'mailFrom',

                                        'logFile',

                                        'otherCLParams',

                                        'tls',

                                        'smtpUser',

                                        'smtpPass',

                                        'sendEmailScriptLocation'

                                      ],

                                    },

                  'HTTP Upload' =>  { 'sendScript' => 'upload_http',

                                      'keys' => 

                                      [

                                        'URL',

                                        'key for report',

                                        'key for date',

                                        'key for hostname',

                                        'key for client',

                                        'key for serial number'

                                      ]

                                    }

                );

sub enableModules {

   my $moduleDir = shift;

   my %modules;

   if ( opendir( my $dh, "$moduleDir" ) ) {

      %modules = map{ $_ => { 'enabled' => -x "$moduleDir/$_" } } 

                 grep { ! /^\./ } 

                 readdir $dh;

      closedir( $dh );

      foreach my $filename ( keys %modules ) {

         if ( open FILE,"<$moduleDir/$_" ) {

            my @descript = grep{ /^# Description: (.*)/ } <FILE>;

            close FILE;

            chomp @descript;

            $modules{$filename}{'description'} = $descript[0];

         } # if

      } # foreach

   } # if

} # enableModules

sub showConf {

   my $configuration = shift;

#   print Dumper( $configuration ); die;

   my $conf;

   $conf .= "\$clientName = '" .   ( defined( $$configuration{'clientName'}   ) ? $$configuration{'clientName'}   : '' ) . "';\n";

   $conf .= "\$serialNumber = '" . ( defined( $$configuration{'serialNumber'} ) ? $$configuration{'serialNumber'} : '' ) . "';\n";

   $conf .= "\$hostname = '" .     ( defined( $$configuration{'hostname'}     ) ? $$configuration{'hostname'}     : '' ) . "';\n";

   $conf .= "\@moduleDirs = ('" . join( "','", @{ $$configuration{ 'moduleDirs' } } ) . "');\n";

   $conf .= "\@scriptDirs = ('" . join( "','", @{ $$configuration{ 'scriptDirs' } } ) . "');\n";

   $conf .= &transportsToConfig( $$configuration{ 'transports' } );

   return $conf;

}

sub transportsToConfig {

   my $transports = shift;

   my $config;

   foreach my $priority ( sort { $a <=> $b } keys %$transports ) {

      my $name = $$transports{ $priority }{'-name-'};

      $config .= "# Tranport $name at priority $priority\n";

      my $thisOne = $$transports{ $priority };

      foreach my $key ( sort keys %$thisOne ) {

         $config .= "\$\$transports{$priority}{'$key'} = '$$thisOne{$key}';\n";

      } # foreach

   } # foreach

   return $config;

} # transportsToConfig

sub makeConfig {

   my @configFileNames = @_;

   my %config;

   my $clientName;

   my $serialNumber;

   my $hostname;

   my @moduleDirs;

   my @scriptDirs;

   my $transports = {};

   foreach my $config ( @configFileNames ) {

      open CONF,"<$config" or die "could not open $config: $!\n";

      my $contents = join( '', <CONF> );

      close CONF;

      # now, eval the information we just read.

      # NOTE: we must turn off strict while doing this, and we die if something breaks.

      no strict "vars"; eval( $contents ); use strict "vars"; die "Error during eval: $@\n" if $@;

   }

   unless ( $hostname ) {

      $hostname = `hostname -f`;

      chomp $hostname;

   }

   $config{'clientName'} = $clientName;

   $config{'serialNumber'} = $serialNumber;

   $config{'hostname'} = $hostname;

   $config{'moduleDirs'} = [ @moduleDirs ];

   $config{'scriptDirs'} = [ @scriptDirs ];

   $config{'transports'} = $transports;

   return \%config;

}

# prompt the user for a response, then allow them to enter it

# the first response is considered the default and is printed

# in all caps if more than one exists

# first answer is used if they simply press the Enter

# key. The response is returned all lower case if more than one

# exists.

# it is assumed 

sub getAnswer {

   my ( $prompt, @answers ) = @_;

   $answers[0] = '' unless defined( $answers[0] );

   my $default = $answers[0];

   my $onlyOneAnswer = scalar( @answers ) == 1;

   print $prompt . '[ ';

   $answers[0] = uc $answers[0] unless $onlyOneAnswer;

   print join( ' | ', @answers ) . ' ]: ';

   my $thisAnswer = <>;

   chomp $thisAnswer;

   $thisAnswer = $default unless $thisAnswer;

   return $thisAnswer;

}

sub yesno {

   my ( $prompt, $default ) = @_;

   $default = 'yes' unless $default;

   my $answer = &getAnswer( $prompt, $default eq 'yes' ? ('yes','no' ) : ('no', 'yes') );

   return lc( substr( $answer, 0, 1 ) ) eq 'y';

}

# runs a system command. Also, if in testing mode, simply shows what

# would have been done.

sub runCommand {

   while ( my $command = shift ) {

      if ( $dryRun ) {

         print "$command\n";

      } else {

         `$command`;

      }

   }

   return 1;

} # runCommand

# checks if a directory exists and, if not, creates it

my %directories; # holds list of directories already created so no need to do an I/O

sub checkDirectoryExists {

   my ( $filename,$mod,$owner ) = @_;

   $mod = "0700" unless $mod;

   $owner = "root:root" unless $owner;

   print "Checking Directory for $filename with $mod and $owner\n" if $TESTING > 2;

   my ($fn, $dirname) = fileparse( $filename );

   print "\tParsing out $dirname and $filename\n" if $TESTING > 2;

   return '' if exists $directories{$dirname};

   if ( -d $dirname ) {

      $directories{$dirname} = 1;

      return '';

   }

   if ( &runCommand( "mkdir -p $dirname", "chmod $mod $dirname", "chown $owner $dirname" ) ) {

      $directories{$dirname} = 1;

   }

   return '';   

}

sub writeConfig {

   my ( $filename,$content ) = @_;

   my $path;

   ($filename, $path ) = fileparse( $filename );

   my $return;

   `mkdir -p $path` unless -d $path;

   $filename = $path . '/' . $filename;

   if ( -e $filename ) {

      `cp $filename $filename.bak` if ( -e $filename );

      $return .= "Old config copied to $filename.bak\n";

   }

   if ( $dryRun ) {

      $return .= "Not writing to configuration file\n";

   } else {

      open CONF,">$filename" or die "Could not write to $filename: $!\n";

      print CONF $content;

      close CONF;

      `chmod 600 $filename`;

      $return .= "Configuration successfully written to $filename\n";

   }

   return $return;

}

sub processParameters {

   while ( my $parameter = shift ) {

      if ( $parameter eq '-v' ) {

         print "$VERSION\n";

         exit;

      }

   } # while

}

1;