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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 1.42 by tdb, Wed Nov 21 10:08:20 2001 UTC

# Line 5 | Line 5
5   # http://www.i-scream.org.uk
6   #
7   # An all-in-one script to act as an i-scream host on
8 < # a typical Unix/Linux box.  You may adapt the data-gathering
9 < # methods as you see fit.
10 < #  - pjm2@ukc.ac.uk
8 > # a typical Unix/Linux box.
9   #
10   # $Author$
11   # $Id$
# Line 35 | Line 33 | use vars qw (
33               $fqdn
34               $pidfile
35               $retry_wait
36 +             @data
37              );
38  
39   if (@ARGV != 2) {
# Line 48 | Line 47 | $seq_no = 1;
47   $retry_wait = 60;
48  
49   # write our PID to a file
50 < $pidfile = "/var/tmp/ihost.pid";
50 > # use home dir by default
51 > #$pidfile = $ENV{"HOME"};
52 > # or drop it in /var/tmp if we can't find HOME
53 > $pidfile = "/var/tmp" if not defined $pidfile;
54 > $pidfile .= "/.ihost.pid";
55   &write_pid();
56  
57   &tcp_configure();
# Line 250 | Line 253 | sub tcp_configure() {
253   }
254  
255  
253
254
256   #-----------------------------------------------------------------------
257   # send_udp_packet
258   # Sends a UDP packet to an i-scream filter.
# Line 260 | Line 261 | sub tcp_configure() {
261   #-----------------------------------------------------------------------
262   sub send_udp_packet() {
263  
264 <    my(@statgrab) = `./statgrab.pl`;
265 <    my(%packet);
266 <    for (my($i) = 0; $i <= $#statgrab; $i++) {
267 <        $statgrab[$i] =~ /^([^\s]*) (.*)$/;
268 <        $packet{$1} = $2;
264 >    my($plugins_dir) = "plugins";
265 >    
266 >    opendir PLUGINS, $plugins_dir;
267 >    my(@plugins) = readdir PLUGINS;
268 >    foreach my $plugin (@plugins) {
269 >        push @data, `$plugins_dir/$plugin` if -x "$plugins_dir/$plugin" && -f "$plugins_dir/$plugin";
270      }
271      
272 +    # get some extra data
273      my($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    $disk_info .= "</disk>";
285
274      my($ip);
275      $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;
276      
277 < <packet seq_no="$seq_no" machine_name="$fqdn" date="$date" type="data" ip="$ip">
278 <    <load>
279 <        <load1>$packet{"packet.load.load1"}</load1>
280 <        <load5>$packet{"packet.load.load5"}</load5>
281 <        <load15>$packet{"packet.load.load15"}</load15>
282 <    </load>
283 <    <os>
284 <        <name>$packet{"packet.os.name"}</name>
285 <        <release>$packet{"packet.os.release"}</release>
286 <        <platform>$packet{"packet.os.platform"}</platform>
287 <        <sysname>$packet{"packet.os.sysname"}</sysname>
288 <        <version>$packet{"packet.os.version"}</version>
289 <        <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>
337 <
338 < EOF
339 <
340 <    # Make the packet smaller by stripping out newlines and leading spaces.
341 <    $xml =~ s/\n\s*//g;
342 <
277 >    # add some extra data to the array
278 >    push(@data, "packet.attributes.seq_no=$seq_no");
279 >    push(@data, "packet.attributes.machine_name=$fqdn");
280 >    push(@data, "packet.attributes.date=$date");
281 >    push(@data, "packet.attributes.type=data");
282 >    push(@data, "packet.attributes.ip=$ip");
283 >    
284 >    # sort the data
285 >    @data = sort(@data);
286 >    
287 >    # turn the array into some nice XML
288 >    my($xml) = &make_xml("", "");
289 >    
290      my($sock) = new IO::Socket::INET (
291                                        PeerPort => $udp_port,
292                                        PeerAddr => $filter_addr,
293                                        Proto => 'udp'
294                                       ) or die "Could not send UDP: $!\n";
295 <
295 >    
296      print $sock $xml or die "Could not send UDP packet: $!\n";
297      close($sock);
298      $seq_no++;
# Line 355 | Line 302 | EOF
302   }
303  
304  
358
359
305   #-----------------------------------------------------------------------
306   # send_tcp_heartbeat
307   # Establishes a TCP connection to an i-scream filter.
# Line 440 | Line 385 | sub send_tcp_heartbeat() {
385      return;
386   }
387  
388 +
389   #-----------------------------------------------------------------------
390   # write_pid
391   # Writes the PID (process ID) of this instance to $pidfile.
# Line 451 | Line 397 | sub write_pid() {
397      close PID;
398      
399      return;
400 + }
401 +
402 + #-----------------------------------------------------------------------
403 + # make_xml
404 + # Turns an array of plugins data into an XML string.
405 + #-----------------------------------------------------------------------
406 + sub make_xml() {
407 +    my($curlevel, $curline) = @_;
408 +    my($xmltemp) = ""; my($curtag) = ""; my($attributes) = "";
409 +    while(1) {
410 +        $curline = shift(@data) if $curline eq ""; chomp $curline;
411 +        if($curline =~ /^$curlevel([^\.\s]+\.)/) {
412 +            $curtag=$1;
413 +        }
414 +        if($curline =~ /^$curlevel$curtag([^\.\s]+)\s+(.*)$/) {
415 +            $xmltemp .= "<$1$attributes>$2</$1>";
416 +        }
417 +        elsif($curline =~ /^$curlevel$curtag(attributes)\.([^\.=]+)=(.*)$/) {
418 +            $attributes .= " $2=\"$3\"";
419 +        }
420 +        else {
421 +            $xmltemp .= &make_xml("$curlevel$curtag", $curline);
422 +        }
423 +        my($nextline) = $data[0]; chomp $nextline if defined $nextline;
424 +        $curtag =~ s/(.*)\./$1/;                
425 +        if((defined $nextline) && ($nextline =~ /^$curlevel$curtag\./)) {
426 +            $curline = "";
427 +        }
428 +        else {
429 +            $xmltemp = "<$curtag$attributes>$xmltemp</$curtag>" unless $curtag eq "";
430 +            return $xmltemp;
431 +        }
432 +    }
433   }

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