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Comparing projects/cms/source/host/ihost-perl/ihost.pl (file contents):
Revision 1.35 by tdb, Wed Nov 14 14:17:12 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
25   #
26   # An all-in-one script to act as an i-scream host on
27 < # a typical Unix/Linux box.  You may adapt the data-gathering
9 < # methods as you see fit.
10 < #  - pjm2@ukc.ac.uk
27 > # a typical Unix/Linux box.
28   #
29   # $Author$
30   # $Id$
# Line 35 | Line 52 | use vars qw (
52               $fqdn
53               $pidfile
54               $retry_wait
55 +             $ostype
56 +             $key
57 +             @data
58              );
59  
60   if (@ARGV != 2) {
# Line 47 | 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 131 | 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 211 | Line 241 | sub tcp_configure() {
241              wait_then_retry();
242              next;
243          }
244 <        chop $response;
215 <        $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: $response\n";
# Line 250 | Line 280 | sub tcp_configure() {
280   }
281  
282  
253
254
283   #-----------------------------------------------------------------------
284   # send_udp_packet
285   # Sends a UDP packet to an i-scream filter.
# Line 260 | Line 288 | sub tcp_configure() {
288   #-----------------------------------------------------------------------
289   sub send_udp_packet() {
290  
291 <    my(@statgrab) = `./statgrab.pl`;
292 <    my(%packet);
293 <    for (my($i) = 0; $i <= $#statgrab; $i++) {
294 <        $statgrab[$i] =~ /^([^\s]*) (.*)$/;
295 <        $packet{$1} = $2;
291 >    my($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;
271    
272    my($disk_info) = "<disk>";
273    my($i) = 0;
274    while (defined $packet{"packet.disk.p$i.attributes.mount"}) {
275        $disk_info .= "<p$i";
276        $disk_info .= " name=\"" . $packet{"packet.disk.p$i.attributes.name"} . "\"";
277        $disk_info .= " kbytes=\"" . $packet{"packet.disk.p$i.attributes.kbytes"} . "\"";
278        $disk_info .= " used=\"" . $packet{"packet.disk.p$i.attributes.used"} . "\"";
279        $disk_info .= " avail=\"" . $packet{"packet.disk.p$i.attributes.avail"} . "\"";
280        $disk_info .= " mount=\"" . $packet{"packet.disk.p$i.attributes.mount"} . "\"";
281        $disk_info .= "></p$i>";
282        ++$i;
283    }
284    $disk_info .= "</disk>";
285
301      my($ip);
302      $ip = inet_ntoa(scalar(gethostbyname(hostname())) || 'localhost') or $ip = 'localhost';
288
289    # Build the XML packet this way, as we can clearly
290    # see the structure and contents... I like this ;-)
291    # [Note that the server rejects UDP packets that are
292    # larger than 8196 bytes]
293    my($xml) = <<EOF;
303      
304 < <packet seq_no="$seq_no" machine_name="$fqdn" date="$date" type="data" ip="$ip">
305 <    <load>
306 <        <load1>$packet{"packet.load.load1"}</load1>
307 <        <load5>$packet{"packet.load.load5"}</load5>
308 <        <load15>$packet{"packet.load.load15"}</load15>
309 <    </load>
310 <    <os>
311 <        <name>$packet{"packet.os.name"}</name>
312 <        <release>$packet{"packet.os.release"}</release>
313 <        <platform>$packet{"packet.os.platform"}</platform>
305 <        <sysname>$packet{"packet.os.sysname"}</sysname>
306 <        <version>$packet{"packet.os.version"}</version>
307 <        <uptime>$packet{"packet.os.uptime"}</uptime>
308 <    </os>
309 <    <users>
310 <        <count>$packet{"packet.users.count"}</count>
311 <        <list>$packet{"packet.users.list"}</list>
312 <    </users>
313 <    <processes>
314 <        <total>$packet{"packet.processes.total"}</total>
315 <        <sleeping>$packet{"packet.processes.sleeping"}</sleeping>
316 <        <zombie>$packet{"packet.processes.zombie"}</zombie>
317 <        <stopped>$packet{"packet.processes.stopped"}</stopped>
318 <        <cpu>$packet{"packet.processes.cpu"}</cpu>
319 <    </processes>
320 <    <cpu>
321 <        <idle>$packet{"packet.cpu.idle"}</idle>
322 <        <user>$packet{"packet.cpu.user"}</user>
323 <        <kernel>$packet{"packet.cpu.kernel"}</kernel>
324 <        <iowait>$packet{"packet.cpu.iowait"}</iowait>
325 <        <swap>$packet{"packet.cpu.swap"}</swap>
326 <    </cpu>
327 <    <memory>
328 <        <total>$packet{"packet.memory.total"}</total>
329 <        <free>$packet{"packet.memory.free"}</free>
330 <    </memory>
331 <    <swap>
332 <        <total>$packet{"packet.swap.total"}</total>
333 <        <free>$packet{"packet.swap.free"}</free>
334 <    </swap>
335 <    $disk_info
336 < </packet>
304 >    # add some extra data to the array
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 < EOF
315 >    # turn the array into some nice XML
316 >    my($xml) = &make_xml("", "");
317  
340    # Make the packet smaller by stripping out newlines and leading spaces.
341    $xml =~ s/\n\s*//g;
342
318      my($sock) = new IO::Socket::INET (
319                                        PeerPort => $udp_port,
320                                        PeerAddr => $filter_addr,
321                                        Proto => 'udp'
322                                       ) or die "Could not send UDP: $!\n";
323 <
323 >    
324      print $sock $xml or die "Could not send UDP packet: $!\n";
325      close($sock);
326      $seq_no++;
# Line 355 | Line 330 | EOF
330   }
331  
332  
358
359
333   #-----------------------------------------------------------------------
334   # send_tcp_heartbeat
335   # Establishes a TCP connection to an i-scream filter.
# Line 423 | 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 440 | Line 416 | sub send_tcp_heartbeat() {
416      return;
417   }
418  
419 +
420   #-----------------------------------------------------------------------
421   # write_pid
422   # Writes the PID (process ID) of this instance to $pidfile.
# Line 451 | Line 428 | sub write_pid() {
428      close PID;
429      
430      return;
431 + }
432 +
433 + #-----------------------------------------------------------------------
434 + # make_xml
435 + # Turns an array of plugins data into an XML string.
436 + #-----------------------------------------------------------------------
437 + sub make_xml() {
438 +    my($curlevel, $curline) = @_;
439 +    my($xmltemp) = ""; my($curtag) = ""; my($attributes) = "";
440 +    while(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 $xmltemp;
464 +            }
465 +        }
466 +        # dealing with value
467 +        elsif($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 $xmltemp;
477 +            }
478 +        }
479 +        # dealing with a null value
480 +        elsif($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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