Data/Rap/Engine.pm

## ----------------------------------------------------------------------
##  $Id: Engine.pm,v 1.9 2003/04/04 17:23:11 joko Exp $
## ----------------------------------------------------------------------
##  $Log: Engine.pm,v $
##  Revision 1.9  2003/04/04 17:23:11  joko
##  minor update: debugging output
##
##  Revision 1.8  2003/03/29 07:11:54  joko
##  modified: sub run_executable
##  new: sub run_script
##
##  Revision 1.7  2003/03/28 07:02:56  joko
##  modified structure around '$wrapper_program'
##
##  Revision 1.6  2003/03/27 15:31:05  joko
##  fixes to modules regarding new namespace(s) below Data::Mungle::*
##
##  Revision 1.5  2003/03/27 15:03:03  joko
##  enhanced 'sub run_executable'
##
##  Revision 1.4  2003/02/22 16:51:21  joko
##  + enhanced run_executable
##  modified logging output
##
##  Revision 1.3  2003/02/21 01:46:17  joko
##  renamed core function
##
##  Revision 1.2  2003/02/20 19:46:33  joko
##  renamed and revamped some of modules
##  renamed methods
##  + sub run_executable
##
##  Revision 1.1  2003/02/18 15:35:25  joko
##  + initial commit
##
## ----------------------------------------------------------------------


package Data::Rap::Engine;

use strict;
use warnings;


use Data::Dumper;
use Hash::Merge qw( merge );
use Iterate;

use shortcuts qw( run_cmd );
use Data::Mungle::Code::Ref qw( ref_slot );
use Data::Mungle::Transform::Deep qw( expand deep_copy );
use File::Temp qw/ tempfile tempdir /;


sub performTarget {
  my $self = shift;
  my $targetname = shift;
  $self->perform_target($targetname);
}

sub perform_target {
  my $self = shift;
  my $targetname = shift;

  # pre-flight checks
  if (!$targetname) {
    $self->log("Target name empty. Please try to specify (e.g.) on the command line.", 'critical');
    return;
  }

  my $header = ("- " x 12) . "   " . $targetname . "   " . ("- " x 6);
  
  # V1
  #$self->log("- " x 35, 'notice');
  #$self->log("Performing Target '$targetname'.", 'notice');

  # V2
  #$self->log($header, 'notice');

  # V3
  $self->log("- " x 20, 'info');
  $self->log("Performing Target '$targetname'.", 'notice');

  #exit;

  my $target = $self->getTargetDetails($targetname);

  # trace
    #print Dumper($target);
    #exit;
    
  $self->perform_dependencies($target);
  $self->perform_details($target);
  
  return 1;

}

sub perform_dependencies {
  my $self = shift;
  my $target = shift;
  # resolve dependencies (just run prior)
  if (my $targetname_dep = $target->{attrib}->{depends}) {
    my @targets = split(/,\s|,/, $targetname_dep);
    #print Dumper(@targets);
    #$self->perform($targetname_dep);
    #delete $target->{attrib}->{depends};
    foreach (@targets) {
      if (!$self->{__rap}->{dependencies}->{resolved}->{$_}++) {
        $self->perform_target($_);
      }
    }
    delete $target->{attrib}->{depends};
  }
}

sub perform_details {
  my $self = shift;
  my $target = shift;
  
  #print Dumper($target);
  #exit;
  
  foreach my $entry (@{$target->{content}}) {
    my $command = $entry->{name};
    my $args = $entry->{attrib};
    my $content = $entry->{content};
    $self->perform_command($command, $args, $content, { warn => 1 } );
    # check recursiveness
    # new condition: don't recurse if node is flagged to have inline-args (2004-04-17)
    my $has_inline_args = ($entry->{attrib}->{_args} && $entry->{attrib}->{_args} eq 'inline');
    if ($entry->{content} && ref $entry->{content} && !$has_inline_args) {
      $self->perform_details($entry);
    }
    # new of 2003-05-08
    $self->perform_command($command . '_end', undef, undef, { warn => 0 } );
  }
}

sub rc {
  my $self = shift;
  return $self->perform_command(@_);
}

sub perform_command {
  my $self = shift;
  my $command = shift;
  my $args_list = shift;
  my $content = shift;
  my $options = shift;

  if (!$command) {
    $self->log("Command was empty!", 'debug');
    return;
  }

  # FIXME: make '__PACKAGE__' go one level deeper properly!
  $self->log( __PACKAGE__ . "->perform_command: " . $command, 'debug');
  
  
  # 1. make arguments from list of arguments(?)

  my $args = {};
  #print Dumper($args_list);
  if ($args_list) {
    if (ref $args_list eq 'ARRAY') {
      foreach (@$args_list) {
        $args = merge($args, $_);
      }
    } else {
      $args = $args_list;
    }
  }
  
  
  # 2. prepare command
  
  # default setting for internal rap commands
  my $method_prefix_default = '_';
  # setting from property database
  my $method_prefix_setting = $self->get_property('core.method_prefix');
  #print "setting: ", $method_prefix_setting, "\n";
  my $prefix = $method_prefix_setting;
  if (not defined $prefix) {
    $prefix = $method_prefix_default;
  }
  $command = $prefix . $command;
  
  
  # 3. determine container
  my $container; # = $self->getInstance();
  #$container ||= $self->getInstance();
  $container ||= $self;
  
  # 4. run method
  if ($container->can($command)) {
    $container->$command($args, $content);
  } else {
    my $level = "debug";
    $level = "warning" if $options->{warn};
    $self->log("Command '$command' not implemented.", $level);
  }
  
}


sub merge_properties {
  my $self = shift;
  my $name = shift;
  my $data = shift;

  $self->log("merge-name: $name");
  #print "name: $name", "\n";
  #print Dumper($data);
  #exit;

  # check if slot (or childs of it) is/are already occupied
  #if (my $data_old = ref_slot($self, $name, undef, '.')) {
  if (my $data_old = $self->get_property($name)) {
    #print "old:", "\n";
    #print Dumper($data_old);
    
    # FIXME: review - any options for 'merge' here?
    my $data_new = merge($data_old, $data);
    #print "DATA NEE! - MERGE!", "\n";
    #print Dumper($data_new);
    #exit;
    #merge_to($self, $data_new);
    $self->set_property( { name => $name, value => $data_new } );
    
  } else {

=pod    
    # make up a dummy hash matching the structure of the destination one
      my $dummy = {};
      ref_slot($dummy, $name, $data, '.');
      print Dumper($dummy);
    
    # mix into destination
      mixin($self, $dummy, { init => 1 });
=cut

      ref_slot($self, $name, $data, '.');

  }
  
  
  #print Dumper($self);
  #exit;
  #$self->

}

sub set_property {
  my $self = shift;
  my $args = shift;

  $self->interpolate($args) ;
  my $name = $args->{name};
  my $value = $args->{value};
  $name = '__rap.properties.' . $name;

  $self->log("set-name: $name");

  #print Dumper($name, $value, '.');

  # fill property slot with given value
  # fix (2003-04-17): always do fill if value is *defined*!!!
  if (defined $value) {
    ref_slot($self, $name, $value, '.');
  }
  
  #print Dumper($self);
  
  # FIXME!!!
  #return if ! ref $args;

  # fill property slot with (probably bigger) data structure from property-/configuration-style - file
  if (my $file = $args->{file}) {
    my $type = $args->{type};
    if (!$type) {
      die("default file (no type specified) is not implemented yet!");
    
    } elsif ($type eq 'perl-eval') {
      #die($type);
      $self->loadFromPerlFile($file, $name, $args->{'varnames'});
      
    } elsif ($type eq 'App::Config') {
      die("not implemented: $type");
      
    }

  } elsif (my $command = $args->{command}) {
    $self->perform_command($command, $args);
  
  }

}

sub get_property {
  my $self = shift;
  #my $args = shift;
  my $name = shift;

  #$self->interpolate($args);

  #my $name = $args->{name};
  my $result;

  if (!$name) {
    $self->log( __PACKAGE__ . ": no name!", 'critical');
    
  } elsif ($name eq '/') {
    $result = expand($self);

  } elsif ($name eq '.') {
    if (my $instance = $self->getInstance()) {
      $result = expand($instance);
    } else {
      $result = ref_slot($self, '__rap.properties', undef, '.');
      
    }

  } else {

    $name = '__rap.properties.' . $name;
    
    $self->log("get-name: $name");
    
    # get property slot and return value
    $result = ref_slot($self, $name, undef, '.');
    
    # FIXME: Is this okay? It's provided for now in order not
    # to deliver an 'undef' to the regex below inside 'interpolate'.
    # revamp this, maybe!
    #$result ||= '';    # NO!!!
  }
  
  return $result;
}

sub interpolate {
  my $self = shift;
  my $ref = shift;
  IterHash %$ref, sub {
    #print $_[1], "\n";
    $_[1] =~ s/\${(.+)}/$self->get_property($1)/e;
  }
}

sub run_executable {
  my $self = shift;
  my $opts = shift;

  my $meta = deep_copy($opts);

  delete $opts->{caption};
  delete $opts->{async};

  #print Dumper($meta);

  if ($opts->{executable}) {

    my $program = $opts->{executable};
    delete $opts->{executable};

    # determine execution method
    my $wrapper_program = '';
    
    # check if program is a namespace-string (contains '::') - use 'do' in this case!
    if ($program =~ /::/) {
      #$wrapper_program = 'rap.pl';
      $wrapper_program = $0;
    }

    # prepare arguments
    my @buf;
    foreach (keys %$opts) {
      my $value = $opts->{$_};
      if (m/^_/) {
        if ($_ eq '_switches') {
          my @switches = split(/,\s|,/, $value);
          foreach my $switch (@switches) {
            push @buf, '--' . $switch;
          }
        }
        next;
      }
      
      if ($value =~ /\s/) {
        $value = "\"$value\"";
      }
      push @buf, "--$_=$value";
    }

    # build {program} & {arguments}  
    my $cmd = ($wrapper_program ? $wrapper_program . ' ' : '') . $program . ' ' . join(' ', @buf);
    
    # trace
      #print "command: $cmd", "\n";
    
    # start process
      # V1: via shortcut
      #$ENV{PERL5LIB} = join(' ', @INC);
      
      # FIXME!!! what about the other slots of @INC?
      $ENV{PERL5LIB} = $INC[0];
      
      #print Dumper(%ENV);
      
      #print "command: '$cmd'", "\n";

      # V1 - basic
      #run_cmd($cmd);

      # V1.b - enhanced: variable local method
      $meta->{caption} ||= '';
      $meta->{async} ||= 0;
      # new of 2003-05-08: USE_PATH!
      $meta->{USE_PATH} ||= 0;
      my $evalstr = "run_cmd('$cmd', '$meta->{caption}', { async => $meta->{async}, USE_PATH => $meta->{USE_PATH} });";
      eval($evalstr);
      #my $res = do "$cmd";
      #print $res, "\n" if $res;

      #$self->log("run_executable: $evalstr", 'info');
      $self->raiseException("run_executable: $evalstr\n$@") if $@;

      # V2: via IPC::Run
      # ....  (TODO)
      
    
  }
  
}


sub run_script {

  my $self = shift;
  my $args = shift;
  my $code = shift;

  if ($args->{language} eq 'msdos/bat') {
    
    #print "code: $code", "\n";
    
    # reporting
    $self->log("Executing some arbitrary unsigned code (probably unsafe). [language=$args->{language}]", 'info');
    $self->log("\n<code>\n$code\n</code>", 'info');
    
    # create temporary intermediate file to execute code
    my $tmpdir = '/tmp/rap';
    mkdir $tmpdir;
    (my $fh, my $filename) = tempfile( DIR => $tmpdir, SUFFIX => '.bat' );
    print $fh $code, "\n";
    run_cmd( $filename, '', { async => 1 } );
    
    # FIXME: DELETE code inside temp-files as soon as possible!
    #print $fh '';
    
    # TODO: delete FILE completely!
    # required for this: wait until execution has finished, then unlink....
    # but: "how to wait until execution is finished"?
    # i believe the best is to spawn *another* process directly from here,
    # let's call it 'watcher-agent'.
    # This one should monitor a certain running process and delete its 
    # executable file after it has finished execution.
    # Possible extensions could be:
    #   keep track of all stuff sent to STDOUT or STDERR and 
    #   send that stuff to the task-owner indirectly (not via shell/console)
    #   (e.g. via email, by posting report to a newsgroup or publishing on a specified web-page: use mod-dav!)
    
  } elsif ($args->{language} eq 'bash') {
    $self->log("FIXME: - - - - - -- - - --  BASH -  - -    -  - -   -    --   - ", 'error');
    
  } else {
    $self->log("FIXME: Script language '$args->{language}' not implemented.", 'error');
    
  }

}

1;
__END__
1	joko	1.1	## ----------------------------------------------------------------------
2	joko	1.10	## $Id: Engine.pm,v 1.9 2003/04/04 17:23:11 joko Exp $
3	joko	1.1	## ----------------------------------------------------------------------
4	joko	1.2	## $Log: Engine.pm,v $
5	joko	1.10	## Revision 1.9 2003/04/04 17:23:11 joko
6			## minor update: debugging output
7			##
8	joko	1.9	## Revision 1.8 2003/03/29 07:11:54 joko
9			## modified: sub run_executable
10			## new: sub run_script
11			##
12	joko	1.8	## Revision 1.7 2003/03/28 07:02:56 joko
13			## modified structure around '$wrapper_program'
14			##
15	joko	1.7	## Revision 1.6 2003/03/27 15:31:05 joko
16			## fixes to modules regarding new namespace(s) below Data::Mungle::*
17			##
18	joko	1.6	## Revision 1.5 2003/03/27 15:03:03 joko
19			## enhanced 'sub run_executable'
20			##
21	joko	1.5	## Revision 1.4 2003/02/22 16:51:21 joko
22			## + enhanced run_executable
23			## modified logging output
24			##
25	joko	1.4	## Revision 1.3 2003/02/21 01:46:17 joko
26			## renamed core function
27			##
28	joko	1.3	## Revision 1.2 2003/02/20 19:46:33 joko
29			## renamed and revamped some of modules
30			## renamed methods
31			## + sub run_executable
32			##
33	joko	1.2	## Revision 1.1 2003/02/18 15:35:25 joko
34			## + initial commit
35			##
36	joko	1.1	## ----------------------------------------------------------------------
37
38
39			package Data::Rap::Engine;
40
41			use strict;
42			use warnings;
43
44
45			use Data::Dumper;
46	joko	1.2	use Hash::Merge qw( merge );
47	joko	1.1	use Iterate;
48	joko	1.2
49			use shortcuts qw( run_cmd );
50	joko	1.6	use Data::Mungle::Code::Ref qw( ref_slot );
51	joko	1.8	use Data::Mungle::Transform::Deep qw( expand deep_copy );
52			use File::Temp qw/ tempfile tempdir /;
53	joko	1.1
54
55			sub performTarget {
56			my $self = shift;
57			my $targetname = shift;
58	joko	1.2	$self->perform_target($targetname);
59			}
60
61			sub perform_target {
62			my $self = shift;
63			my $targetname = shift;
64
65	joko	1.10	# pre-flight checks
66			if (!$targetname) {
67			$self->log("Target name empty. Please try to specify (e.g.) on the command line.", 'critical');
68			return;
69			}
70
71	joko	1.4	my $header = ("- " x 12) . " " . $targetname . " " . ("- " x 6);
72
73	joko	1.8	# V1
74	joko	1.4	#$self->log("- " x 35, 'notice');
75			#$self->log("Performing Target '$targetname'.", 'notice');
76
77	joko	1.8	# V2
78			#$self->log($header, 'notice');
79
80			# V3
81	joko	1.9	$self->log("- " x 20, 'info');
82	joko	1.8	$self->log("Performing Target '$targetname'.", 'notice');
83	joko	1.2
84			#exit;
85
86			my $target = $self->getTargetDetails($targetname);
87	joko	1.1
88			# trace
89			#print Dumper($target);
90			#exit;
91
92	joko	1.2	$self->perform_dependencies($target);
93			$self->perform_details($target);
94	joko	1.10
95			return 1;
96	joko	1.2
97			}
98
99			sub perform_dependencies {
100			my $self = shift;
101			my $target = shift;
102	joko	1.1	# resolve dependencies (just run prior)
103			if (my $targetname_dep = $target->{attrib}->{depends}) {
104	joko	1.2	my @targets = split(/,\s\|,/, $targetname_dep);
105			#print Dumper(@targets);
106			#$self->perform($targetname_dep);
107			#delete $target->{attrib}->{depends};
108			foreach (@targets) {
109			if (!$self->{__rap}->{dependencies}->{resolved}->{$_}++) {
110			$self->perform_target($_);
111			}
112			}
113	joko	1.1	delete $target->{attrib}->{depends};
114			}
115	joko	1.2	}
116	joko	1.1
117	joko	1.2	sub perform_details {
118			my $self = shift;
119			my $target = shift;
120
121			#print Dumper($target);
122			#exit;
123
124	joko	1.1	foreach my $entry (@{$target->{content}}) {
125			my $command = $entry->{name};
126			my $args = $entry->{attrib};
127	joko	1.8	my $content = $entry->{content};
128	joko	1.10	$self->perform_command($command, $args, $content, { warn => 1 } );
129	joko	1.2	# check recursiveness
130	joko	1.10	# new condition: don't recurse if node is flagged to have inline-args (2004-04-17)
131			my $has_inline_args = ($entry->{attrib}->{_args} && $entry->{attrib}->{_args} eq 'inline');
132			if ($entry->{content} && ref $entry->{content} && !$has_inline_args) {
133	joko	1.2	$self->perform_details($entry);
134			}
135	joko	1.10	# new of 2003-05-08
136			$self->perform_command($command . '_end', undef, undef, { warn => 0 } );
137	joko	1.1	}
138			}
139
140			sub rc {
141			my $self = shift;
142	joko	1.2	return $self->perform_command(@_);
143	joko	1.1	}
144
145	joko	1.2	sub perform_command {
146	joko	1.1	my $self = shift;
147			my $command = shift;
148	joko	1.8	my $args_list = shift;
149			my $content = shift;
150	joko	1.10	my $options = shift;
151	joko	1.2
152	joko	1.1	if (!$command) {
153	joko	1.4	$self->log("Command was empty!", 'debug');
154	joko	1.1	return;
155			}
156	joko	1.2
157			# FIXME: make '__PACKAGE__' go one level deeper properly!
158			$self->log( __PACKAGE__ . "->perform_command: " . $command, 'debug');
159	joko	1.1
160	joko	1.10
161			# 1. make arguments from list of arguments(?)
162
163	joko	1.1	my $args = {};
164			#print Dumper($args_list);
165			if ($args_list) {
166			if (ref $args_list eq 'ARRAY') {
167			foreach (@$args_list) {
168			$args = merge($args, $_);
169			}
170			} else {
171			$args = $args_list;
172			}
173			}
174	joko	1.2
175
176	joko	1.10	# 2. prepare command
177
178			# default setting for internal rap commands
179			my $method_prefix_default = '_';
180			# setting from property database
181			my $method_prefix_setting = $self->get_property('core.method_prefix');
182			#print "setting: ", $method_prefix_setting, "\n";
183			my $prefix = $method_prefix_setting;
184			if (not defined $prefix) {
185			$prefix = $method_prefix_default;
186			}
187			$command = $prefix . $command;
188
189
190			# 3. determine container
191	joko	1.2	my $container; # = $self->getInstance();
192	joko	1.10	#$container \|\|= $self->getInstance();
193	joko	1.2	$container \|\|= $self;
194
195	joko	1.10	# 4. run method
196	joko	1.2	if ($container->can($command)) {
197	joko	1.8	$container->$command($args, $content);
198	joko	1.1	} else {
199	joko	1.10	my $level = "debug";
200			$level = "warning" if $options->{warn};
201			$self->log("Command '$command' not implemented.", $level);
202	joko	1.1	}
203	joko	1.2
204	joko	1.1	}
205
206	joko	1.2
207			sub merge_properties {
208	joko	1.1	my $self = shift;
209	joko	1.2	my $name = shift;
210			my $data = shift;
211	joko	1.1
212	joko	1.2	$self->log("merge-name: $name");
213			#print "name: $name", "\n";
214			#print Dumper($data);
215			#exit;
216	joko	1.1
217	joko	1.2	# check if slot (or childs of it) is/are already occupied
218			#if (my $data_old = ref_slot($self, $name, undef, '.')) {
219			if (my $data_old = $self->get_property($name)) {
220			#print "old:", "\n";
221			#print Dumper($data_old);
222
223			# FIXME: review - any options for 'merge' here?
224			my $data_new = merge($data_old, $data);
225			#print "DATA NEE! - MERGE!", "\n";
226			#print Dumper($data_new);
227			#exit;
228	joko	1.3	#merge_to($self, $data_new);
229	joko	1.2	$self->set_property( { name => $name, value => $data_new } );
230
231	joko	1.1	} else {
232	joko	1.2
233			=pod
234			# make up a dummy hash matching the structure of the destination one
235			my $dummy = {};
236			ref_slot($dummy, $name, $data, '.');
237			print Dumper($dummy);
238
239			# mix into destination
240			mixin($self, $dummy, { init => 1 });
241			=cut
242
243			ref_slot($self, $name, $data, '.');
244
245	joko	1.1	}
246	joko	1.2
247
248			#print Dumper($self);
249			#exit;
250			#$self->
251
252			}
253	joko	1.1
254	joko	1.2	sub set_property {
255			my $self = shift;
256			my $args = shift;
257
258			$self->interpolate($args) ;
259			my $name = $args->{name};
260			my $value = $args->{value};
261			$name = '__rap.properties.' . $name;
262
263			$self->log("set-name: $name");
264	joko	1.1
265	joko	1.10	#print Dumper($name, $value, '.');
266
267	joko	1.1	# fill property slot with given value
268	joko	1.10	# fix (2003-04-17): always do fill if value is defined!!!
269			if (defined $value) {
270	joko	1.2	ref_slot($self, $name, $value, '.');
271	joko	1.1	}
272
273	joko	1.2	#print Dumper($self);
274
275	joko	1.1	# FIXME!!!
276	joko	1.2	#return if ! ref $args;
277	joko	1.1
278			# fill property slot with (probably bigger) data structure from property-/configuration-style - file
279			if (my $file = $args->{file}) {
280			my $type = $args->{type};
281			if (!$type) {
282			die("default file (no type specified) is not implemented yet!");
283
284			} elsif ($type eq 'perl-eval') {
285			#die($type);
286			$self->loadFromPerlFile($file, $name, $args->{'varnames'});
287
288			} elsif ($type eq 'App::Config') {
289			die("not implemented: $type");
290
291			}
292
293			} elsif (my $command = $args->{command}) {
294	joko	1.2	$self->perform_command($command, $args);
295	joko	1.1
296			}
297
298			}
299
300			sub get_property {
301			my $self = shift;
302			#my $args = shift;
303			my $name = shift;
304
305			#$self->interpolate($args);
306
307			#my $name = $args->{name};
308	joko	1.2	my $result;
309
310			if (!$name) {
311			$self->log( __PACKAGE__ . ": no name!", 'critical');
312
313			} elsif ($name eq '/') {
314			$result = expand($self);
315
316			} elsif ($name eq '.') {
317			if (my $instance = $self->getInstance()) {
318			$result = expand($instance);
319			} else {
320			$result = ref_slot($self, '__rap.properties', undef, '.');
321
322			}
323	joko	1.1
324	joko	1.2	} else {
325
326			$name = '__rap.properties.' . $name;
327
328			$self->log("get-name: $name");
329
330			# get property slot and return value
331			$result = ref_slot($self, $name, undef, '.');
332
333			# FIXME: Is this okay? It's provided for now in order not
334			# to deliver an 'undef' to the regex below inside 'interpolate'.
335			# revamp this, maybe!
336			#$result \|\|= ''; # NO!!!
337			}
338	joko	1.1
339	joko	1.2	return $result;
340	joko	1.1	}
341
342			sub interpolate {
343			my $self = shift;
344			my $ref = shift;
345			IterHash %$ref, sub {
346			#print $_[1], "\n";
347			$_[1] =~ s/\${(.+)}/$self->get_property($1)/e;
348			}
349			}
350	joko	1.2
351			sub run_executable {
352			my $self = shift;
353			my $opts = shift;
354
355	joko	1.8	my $meta = deep_copy($opts);
356
357			delete $opts->{caption};
358			delete $opts->{async};
359
360			#print Dumper($meta);
361
362	joko	1.2	if ($opts->{executable}) {
363
364			my $program = $opts->{executable};
365			delete $opts->{executable};
366
367	joko	1.5	# determine execution method
368			my $wrapper_program = '';
369
370			# check if program is a namespace-string (contains '::') - use 'do' in this case!
371			if ($program =~ /::/) {
372	joko	1.7	#$wrapper_program = 'rap.pl';
373			$wrapper_program = $0;
374	joko	1.5	}
375
376			# prepare arguments
377	joko	1.2	my @buf;
378			foreach (keys %$opts) {
379			my $value = $opts->{$_};
380	joko	1.4	if (m/^_/) {
381			if ($_ eq '_switches') {
382			my @switches = split(/,\s\|,/, $value);
383			foreach my $switch (@switches) {
384			push @buf, '--' . $switch;
385			}
386			}
387			next;
388			}
389
390	joko	1.2	if ($value =~ /\s/) {
391			$value = "\"$value\"";
392			}
393			push @buf, "--$_=$value";
394			}
395	joko	1.5
396			# build {program} & {arguments}
397	joko	1.7	my $cmd = ($wrapper_program ? $wrapper_program . ' ' : '') . $program . ' ' . join(' ', @buf);
398	joko	1.2
399			# trace
400			#print "command: $cmd", "\n";
401
402			# start process
403			# V1: via shortcut
404			#$ENV{PERL5LIB} = join(' ', @INC);
405
406			# FIXME!!! what about the other slots of @INC?
407			$ENV{PERL5LIB} = $INC[0];
408
409			#print Dumper(%ENV);
410	joko	1.5
411	joko	1.7	#print "command: '$cmd'", "\n";
412	joko	1.5
413			# V1 - basic
414			#run_cmd($cmd);
415
416			# V1.b - enhanced: variable local method
417	joko	1.8	$meta->{caption} \|\|= '';
418			$meta->{async} \|\|= 0;
419	joko	1.10	# new of 2003-05-08: USE_PATH!
420			$meta->{USE_PATH} \|\|= 0;
421			my $evalstr = "run_cmd('$cmd', '$meta->{caption}', { async => $meta->{async}, USE_PATH => $meta->{USE_PATH} });";
422	joko	1.5	eval($evalstr);
423			#my $res = do "$cmd";
424			#print $res, "\n" if $res;
425
426			#$self->log("run_executable: $evalstr", 'info');
427			$self->raiseException("run_executable: $evalstr\n$@") if $@;
428
429	joko	1.2	# V2: via IPC::Run
430			# .... (TODO)
431	joko	1.7
432	joko	1.2
433			}
434
435			}
436
437	joko	1.8
438			sub run_script {
439
440			my $self = shift;
441			my $args = shift;
442			my $code = shift;
443
444			if ($args->{language} eq 'msdos/bat') {
445
446			#print "code: $code", "\n";
447
448			# reporting
449			$self->log("Executing some arbitrary unsigned code (probably unsafe). [language=$args->{language}]", 'info');
450			$self->log("\n<code>\n$code\n</code>", 'info');
451
452			# create temporary intermediate file to execute code
453			my $tmpdir = '/tmp/rap';
454			mkdir $tmpdir;
455			(my $fh, my $filename) = tempfile( DIR => $tmpdir, SUFFIX => '.bat' );
456			print $fh $code, "\n";
457			run_cmd( $filename, '', { async => 1 } );
458
459			# FIXME: DELETE code inside temp-files as soon as possible!
460			#print $fh '';
461
462			# TODO: delete FILE completely!
463			# required for this: wait until execution has finished, then unlink....
464			# but: "how to wait until execution is finished"?
465			# i believe the best is to spawn another process directly from here,
466			# let's call it 'watcher-agent'.
467			# This one should monitor a certain running process and delete its
468			# executable file after it has finished execution.
469			# Possible extensions could be:
470			# keep track of all stuff sent to STDOUT or STDERR and
471			# send that stuff to the task-owner indirectly (not via shell/console)
472			# (e.g. via email, by posting report to a newsgroup or publishing on a specified web-page: use mod-dav!)
473
474			} elsif ($args->{language} eq 'bash') {
475			$self->log("FIXME: - - - - - -- - - -- BASH - - - - - - - -- - ", 'error');
476
477			} else {
478			$self->log("FIXME: Script language '$args->{language}' not implemented.", 'error');
479
480			}
481
482			}
483	joko	1.1
484			1;
485			__END__
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