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Comparing projects/cms/source/host/ihost-perl/ihost.pl (file contents):
Revision 1.36 by tdb, Wed Nov 14 16:41:30 2001 UTC vs.
Revision 1.49 by tdb, Sat May 18 18:15:56 2002 UTC

# Line 1 | Line 1
1   #!/usr/bin/perl -w
2  
3 + #
4 + # i-scream central monitoring system
5 + # Copyright (C) 2000-2002 i-scream
6 + #
7 + # This program is free software; you can redistribute it and/or
8 + # modify it under the terms of the GNU General Public License
9 + # as published by the Free Software Foundation; either version 2
10 + # of the License, or (at your option) any later version.
11 + #
12 + # This program is distributed in the hope that it will be useful,
13 + # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 + # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 + # GNU General Public License for more details.
16 + #
17 + # You should have received a copy of the GNU General Public License
18 + # along with this program; if not, write to the Free Software
19 + # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
20 + #
21 +
22   # -----------------------------------------------------------
23   # Perl i-scream Host.
24   # http://www.i-scream.org.uk
# Line 33 | Line 52 | use vars qw (
52               $fqdn
53               $pidfile
54               $retry_wait
55 <             @statgrab
55 >             $ostype
56 >             $key
57 >             @data
58              );
59  
60   if (@ARGV != 2) {
# Line 46 | Line 67 | $filter_manager_port = $ARGV[1];
67   $seq_no = 1;
68   $retry_wait = 60;
69  
70 + # work out our platform, if we can.
71 + $ostype = `uname -s`;
72 + chomp $ostype;
73 + $ostype = "unknown" if not defined $ostype;
74 +
75   # write our PID to a file
76 < $pidfile = "/var/tmp/ihost.pid";
76 > # use home dir by default
77 > #$pidfile = $ENV{"HOME"};
78 > # or drop it in /var/tmp if we can't find HOME
79 > $pidfile = "/var/tmp" if not defined $pidfile;
80 > $pidfile .= "/.ihost.pid";
81   &write_pid();
82  
83   &tcp_configure();
84 + &send_tcp_heartbeat();
85   &send_udp_packet();
86  
87   $last_udp_time = time;
# Line 130 | Line 161 | sub tcp_configure() {
161      
162          print $sock "LASTMODIFIED\n";
163          $response = <$sock>;
164 <        if (!$response) {
165 <            print "The i-scream server did not return anything for the LASTMODIFIED command.\n";
164 >        if (!$response || $response eq "ERROR\n") {
165 >            print "The i-scream server did not provide the LASTMODIFIED value.\n";
166              close($sock);
167              wait_then_retry();
168              next;
169          }
170 <        chop $response;
170 >        chomp $response;
171          $last_modified = $response;
172      
173          print "Config last modified: ". (scalar localtime $last_modified/1000) . "\n";
174  
175          print $sock "FILELIST\n";
176          $response = <$sock>;
177 <        if (!$response) {
177 >        if (!$response || $response eq "ERROR\n") {
178              print "The i-scream server did not provide a configuration file list.\n";
179              close($sock);
180              wait_then_retry();
181              next;
182          }
183 <        chop $response;
183 >        chomp $response;
184          $file_list = $response;
185  
186          print "File list obtained: $file_list\n";
187  
188          print $sock "FQDN\n";
189          $response = <$sock>;
190 <        if (!$response) {
190 >        if (!$response || $response eq "ERROR\n") {
191              print "The i-scream server did not tell us our FQDN.\n";
192              close($sock);
193              wait_then_retry();
194              next;
195          }
196 <        chop $response;
196 >        chomp $response;
197          $fqdn = $response;
198  
199          print "FQDN returned: $fqdn\n";
200  
201          print $sock "UDPUpdateTime\n";
202          $response = <$sock>;
203 <        if (!$response) {
203 >        if (!$response || $response eq "ERROR\n") {
204              print "The i-scream server did not give us a UDPUpdateTime.\n";
205              close($sock);
206              wait_then_retry();
207              next;
208          }
209 <        chop $response;
209 >        chomp $response;
210          $udp_update_time = $response;
211  
212          print $sock "TCPUpdateTime\n";
213          $response = <$sock>;
214 <        if (!$response) {
214 >        if (!$response || $response eq "ERROR\n") {
215              print "The i-scream server did not give us a TCPUpdateTime.\n";
216              close($sock);
217              wait_then_retry();
218              next;
219          }
220 <        chop $response;
220 >        chomp $response;
221          $tcp_update_time = $response;
222      
223          print "UDP packet period: $udp_update_time seconds.\nTCP heartbeat period: $tcp_update_time seconds.\n";
# Line 210 | Line 241 | sub tcp_configure() {
241              wait_then_retry();
242              next;
243          }
244 <        chop $response;
214 <        $response =~ /^(.*);(.*);(.*)/;
244 >        chomp $response;
245          if ($response eq "ERROR") {
246              print "There are no active configured filters for your host.\n";
247              close($sock);
248              wait_then_retry();
249              next;
250          }
251 +        $response =~ /^(.*);(.*);(.*)/;
252          ($filter_addr, $udp_port, $tcp_port) = ($1, $2, $3);
253          unless (defined($filter_addr) && defined($udp_port) && defined($tcp_port)) {
254              print "Failed: Filter address response from server did not make sense: $response\n";
# Line 257 | Line 288 | sub tcp_configure() {
288   #-----------------------------------------------------------------------
289   sub send_udp_packet() {
290  
291 <    @statgrab = `./statgrab.pl`;
291 >    my($plugins_dir) = "plugins";
292      
293 +    opendir PLUGINS, $plugins_dir;
294 +    my(@plugins) = readdir PLUGINS;
295 +    foreach my $plugin (@plugins) {
296 +        push @data, `$plugins_dir/$plugin $ostype` if -x "$plugins_dir/$plugin" && -f "$plugins_dir/$plugin";
297 +    }
298 +    
299      # get some extra data
300      my($date) = time;
301      my($ip);
302      $ip = inet_ntoa(scalar(gethostbyname(hostname())) || 'localhost') or $ip = 'localhost';
303      
304      # add some extra data to the array
305 <    push(@statgrab, "packet.attributes.seq_no=$seq_no");
306 <    push(@statgrab, "packet.attributes.machine_name=$fqdn");
307 <    push(@statgrab, "packet.attributes.date=$date");
308 <    push(@statgrab, "packet.attributes.type=data");
309 <    push(@statgrab, "packet.attributes.ip=$ip");
305 >    push(@data, "packet.attributes.seq_no $seq_no");
306 >    push(@data, "packet.attributes.machine_name $fqdn");
307 >    push(@data, "packet.attributes.date $date");
308 >    push(@data, "packet.attributes.type data");
309 >    push(@data, "packet.attributes.ip $ip");
310 >    push(@data, "packet.attributes.key $key");
311      
312 +    # sort the data
313 +    @data = sort(grep(!/^$/, grep(/^packet\./, @data)));
314 +
315      # turn the array into some nice XML
316      my($xml) = &make_xml("", "");
317 <    
317 >
318      my($sock) = new IO::Socket::INET (
319                                        PeerPort => $udp_port,
320                                        PeerAddr => $filter_addr,
# Line 355 | Line 396 | sub send_tcp_heartbeat() {
396          return;
397      }
398      
399 +    print $sock "KEY\n";
400 +    $key = <$sock>;
401 +    
402      print $sock "ENDHEARTBEAT\n";
403      $response = <$sock>;
404      if (!$response eq "OK\n") {
# Line 388 | Line 432 | sub write_pid() {
432  
433   #-----------------------------------------------------------------------
434   # make_xml
435 < # Turns an array of statgrab data into an XML string.
435 > # Turns an array of plugins data into an XML string.
436   #-----------------------------------------------------------------------
437   sub make_xml() {
438      my($curlevel, $curline) = @_;
439      my($xmltemp) = ""; my($curtag) = ""; my($attributes) = "";
440 <    while(true) {
441 <        $curline = shift(@statgrab) if $curline eq ""; chomp $curline;
440 >    while(1) {
441 >        $curline = shift(@data) if $curline eq "";
442 >        return $xmltemp if not defined $curline;
443 >        chomp $curline;
444 >        # dealing with nest (or attributes)
445          if($curline =~ /^$curlevel([^\.\s]+\.)/) {
446              $curtag=$1;
447 +            if($curline =~ /^$curlevel$curtag([^\.\s]+)\s+(.*)$/) {
448 +                $xmltemp .= &make_xml("$curlevel$curtag", $curline);
449 +            }
450 +            elsif($curline =~ /^$curlevel$curtag(attributes)\.([^\.\s]+)\s+(.*)$/) {
451 +                $attributes .= " $2=\"$3\"";
452 +            }
453 +            else {
454 +                $xmltemp .= &make_xml("$curlevel$curtag", $curline);
455 +            }
456 +            my($nextline) = $data[0]; chomp $nextline if defined $nextline;
457 +            $curtag =~ s/(.*)\./$1/;
458 +            if((defined $nextline) && ($nextline =~ /^$curlevel$curtag\./)) {
459 +                $curline = "";
460 +            }
461 +            else {
462 +                $xmltemp = "<$curtag$attributes>$xmltemp</$curtag>" unless $curtag eq "";
463 +                return $xmltemp;
464 +            }
465          }
466 <        if($curline =~ /^$curlevel$curtag([^\.\s]+)\s+(.*)$/) {
467 <            $xmltemp .= "<$1$attributes>$2</$1>";
466 >        # dealing with value
467 >        elsif($curline =~ /^$curlevel([^\.\s]+)\s+(.*)$/) {
468 >            $curtag=$1;
469 >            $xmltemp=$2;          
470 >            my($nextline) = $data[0]; chomp $nextline if defined $nextline;
471 >            if(defined $nextline && ($nextline =~ /^$curlevel$curtag\./ || $nextline =~ /^$curlevel$curtag\s+/)) {
472 >                $curline = "";
473 >            }
474 >            else {
475 >                $xmltemp = "<$curtag$attributes>$xmltemp</$curtag>" unless $curtag eq "";
476 >                return $xmltemp;
477 >            }
478          }
479 <        elsif($curline =~ /^$curlevel$curtag(attributes)\.([^\.=]+)=(.*)$/) {
480 <            $attributes .= " $2=\"$3\"";
481 <        }
482 <        else {
483 <            $xmltemp .= &make_xml("$curlevel$curtag", $curline);
484 <        }
485 <        my($nextline) = $statgrab[0]; chomp $nextline if defined $nextline;
486 <        $curtag =~ s/(.*)\./$1/;                
487 <        if(defined $nextline && $nextline =~ /^$curlevel$curtag\./) {
488 <            $curline = "";
414 <        }
415 <        else {
416 <            $xmltemp = "<$curtag$attributes>$xmltemp</$curtag>" unless $curtag eq "";
417 <            return $xmltemp;
418 <        }
479 >        # dealing with a null value
480 >        elsif($curline =~ /^$curlevel([^\.\s]+)$/) {
481 >            # simply adding a space makes the above elsif deal with it :)
482 >            # just level with an empty tag in the XML
483 >            $curline .= " ";
484 >        }
485 >        # failing all that, skip the line
486 >        else {
487 >            $curline = "";
488 >        }
489      }
490   }

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