/[pxelator]/lib/PXElator/httpd.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Revision 225 - (hide annotations)
Sun Aug 16 00:03:30 2009 UTC (14 years, 7 months ago) by dpavlin
File size: 8493 byte(s)
split out wireshark as separate process from kvm

implemented fork_if_active (for sub-processes) and fork_actions
which can be run without dependencies

1 dpavlin 42 package httpd;
2    
3     use warnings;
4     use strict;
5     use autodie;
6    
7     =head1 httpd
8    
9     Start with:
10    
11     perl -Ilib/PXElator -Mhttpd -e httpd::start
12    
13     =cut
14    
15     use Data::Dump qw/dump/;
16     use Carp qw/confess/;
17     use File::Slurp;
18     #use JSON;
19     use IO::Socket::INET;
20 dpavlin 162 use Regexp::Common qw/net/;
21 dpavlin 42
22 dpavlin 149 sub menu {qq{
23    
24     <div style="font-size: 80%; color: #888">
25     <a href=/>home</a>
26     <a href=/server>server</a>
27 dpavlin 224 <a href=/ip>ip</a>
28 dpavlin 153 <a href=/client>client</a>
29 dpavlin 149 </div>
30    
31     }}
32    
33 dpavlin 42 our $port = 7777;
34    
35     use server;
36 dpavlin 67 our $debug = server::debug;
37 dpavlin 64 our $url = "http://$server::ip:$port";
38 dpavlin 42
39 dpavlin 43 use html;
40 dpavlin 70 our $static_pids;
41 dpavlin 115 use progress_bar;
42 dpavlin 153 use config;
43 dpavlin 159 use client;
44     use log;
45 dpavlin 173 use x11;
46 dpavlin 181 use amt;
47 dpavlin 185 use boolean;
48     use daemons;
49 dpavlin 43
50 dpavlin 185 use kvm;
51     use browser;
52     use network;
53 dpavlin 224 use ip;
54 dpavlin 225 use wireshark;
55 dpavlin 185
56 dpavlin 207 use CouchDB;
57 dpavlin 185
58 dpavlin 42 sub static {
59     my ($client,$path) = @_;
60    
61 dpavlin 65 my $full = "$server::base_dir/tftp/$path";
62 dpavlin 42
63 dpavlin 65 return if ! -f $full;
64 dpavlin 42
65 dpavlin 70 if ( my $pid = fork ) {
66     # parent
67     close($client);
68     $static_pids->{$pid} = $path;
69     return 1;
70     }
71    
72 dpavlin 65 my $type = 'application/octet-stream';
73 dpavlin 42 $type = 'text/html' if $path =~ m{\.htm};
74     $type = 'application/javascript' if $path =~ m{\.js};
75 dpavlin 65 $type = 'text/plain' if $path =~ m{\.txt};
76 dpavlin 42
77 dpavlin 65 my $size = -s $full || return;
78    
79     print $client "HTTP/1.0 200 OK\r\nContent-Type: $type\r\nContent-Length: $size\r\nConnection: close\r\n\r\n";
80    
81     open(my $fh, $full);
82    
83 dpavlin 96 my $block = 1400; # try not to fragment packages (pxelinux seems to have problems with it)
84 dpavlin 65 my $buff;
85     my $pos = 0;
86    
87 dpavlin 208 CouchDB::audit( 'static', { pid => $$, path => $path, type => $type, size => $size, block => $block, peerhost => $client->peerhost });
88 dpavlin 96
89 dpavlin 115 progress_bar::start;
90 dpavlin 105
91 dpavlin 65 while( my $len = read $fh, $buff, $block ) {
92 dpavlin 107 print $client $buff;
93 dpavlin 105 $client->flush;
94 dpavlin 65 $pos += $len;
95 dpavlin 115 progress_bar::tick( $path, $pos, $size );
96 dpavlin 42 }
97 dpavlin 65 close($fh);
98     close($client);
99 dpavlin 42
100 dpavlin 105 print STDERR "\n";
101 dpavlin 65
102 dpavlin 107 exit(0);
103 dpavlin 42 }
104    
105 dpavlin 199 sub ok {
106     qq|HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n| . menu()
107     }
108 dpavlin 67
109 dpavlin 199 sub redirect {
110     my $to = shift;
111     $to ||= $url;
112     qq|HTTP/1.1 302 Found\r\nContent-type: text/html\r\nLocation: $to\r\n\r\n|
113     }
114    
115 dpavlin 43 sub get_request {
116     my ( $client, $path, $param ) = @_;
117    
118 dpavlin 128 server->refresh;
119    
120 dpavlin 208 CouchDB::audit( 'request', { path => $path, param => $param, peerhost => $client->peerhost } );
121 dpavlin 43
122     if ( my $found = static( $client,$path ) ) {
123     warn "static $found" if $debug;
124     } elsif ( $path eq '/' ) {
125 dpavlin 53
126 dpavlin 66 my @rows = (
127 dpavlin 64 'debug', qq|<a href=/our/debug/| . boolean::toggle($debug) . qq|>$debug</a>|,
128 dpavlin 43 );
129 dpavlin 70
130 dpavlin 96 my $debug_proc = '';
131 dpavlin 71
132 dpavlin 185 foreach my $name ( sort keys %$daemons::pids ) {
133     my $pid = $daemons::pids->{$name} || next;
134 dpavlin 43
135 dpavlin 173 my $html;
136 dpavlin 66
137 dpavlin 81 my $proc = "/proc/$pid/status";
138 dpavlin 71
139 dpavlin 81 if ( -e $proc ) {
140 dpavlin 173 $html .= qq|<a href=/start_stop/$name>$pid</a>|;
141 dpavlin 81 if ( $debug ) {
142 dpavlin 225 $html .= qq| <a name=$pid href=#proc-$pid>?</a>| if $name->can('start');
143 dpavlin 81
144     $debug_proc
145     .= qq|<a name=proc-$pid href=#$pid>$proc</a><pre style="font-size: 10%">|
146     . read_file($proc)
147     . qq|</pre>|
148     ;
149     }
150    
151 dpavlin 225 if ( $name->can('fork_if_active') ) {
152     $html .= qq| <a href=/start_stop/$name/$_>$_</a>| foreach $name->fork_if_active;
153 dpavlin 81 }
154 dpavlin 88
155     if ( $name->can('actions') ) {
156 dpavlin 225 $html .= qq| <a href=/action/$name/$_>$_</a>| foreach $name->actions;
157 dpavlin 88 }
158 dpavlin 173 } else {
159 dpavlin 225 $html .= qq|<a href=/start_stop/$name>restart</a> $pid exited| if $name->can('start');
160     if ( $name->can('fork_actions') ) {
161     $html .= qq| <a href=/start_stop/$name/$_>$_</a>| foreach $name->fork_actions;
162     }
163 dpavlin 71 }
164    
165 dpavlin 66 push @rows, ( $name => $html );
166     }
167    
168 dpavlin 91 my $below_table = '';
169    
170 dpavlin 78 warn 'static_pids: ', dump( $static_pids ) if $debug;
171 dpavlin 70 foreach my $pid ( keys %$static_pids ) {
172     my $path = $static_pids->{$pid};
173     if ( -d "/proc/$pid" ) {
174     push @rows, ( $path => qq|<a href=/kill/static/$pid>$pid</a>| );
175 dpavlin 91 } elsif ( $param->{clean_completed_downloads} ) {
176     delete $static_pids->{$pid}
177 dpavlin 70 } else {
178     push @rows, ( $path => "$pid competed" );
179 dpavlin 91 $below_table = qq|<a href="/?clean_completed_downloads=1">clean completed downloads</a>|;
180 dpavlin 70 }
181     }
182    
183 dpavlin 199 print $client ok
184 dpavlin 72 , html::table( 2, @rows )
185 dpavlin 91 , $below_table
186 dpavlin 72 , html::tabs( log::mac_changes )
187     , $debug_proc
188     ;
189 dpavlin 66
190 dpavlin 149 } elsif ( $path =~ m{^/server} ) {
191 dpavlin 199 print $client ok
192 dpavlin 185 , html::table( 2, map { ( $_, html::tt eval '$server::'.$_ ) } ( 'ip', 'netmask', 'ip_from', 'ip_to', 'domain_name', 'base_dir', 'conf' ) )
193 dpavlin 149 ;
194 dpavlin 162 } elsif ( $path =~ m!^/client(?:/$RE{net}{IPv4}{-keep})?! ) {
195     my $ip = $1 || $client->peerhost;
196 dpavlin 200
197     if ( my $new_ip = $param->{change_ip} ) {
198     client::change_ip( $ip, $new_ip );
199     $ip = $new_ip;
200     }
201    
202 dpavlin 162 if ( $ip ne $server::ip ) {
203     my $hostname = client::conf( $ip, 'hostname' => $param->{hostname} );
204 dpavlin 188
205     my @table = (
206 dpavlin 199 'ip' => qq|<input type=text name=change_ip value="$ip" onChange="document.getElementById('old_ip').style.display = '';"><span id=old_ip style="display: none; color: #888;">old: $ip<span>|,
207     'hostname' => qq|<input type=text name=hostname value="$hostname">|,
208 dpavlin 188 );
209    
210     my $deploy;
211    
212 dpavlin 216 if ( my $mac = client::mac_from_ip( $ip ) ) {
213 dpavlin 188 $deploy = client::conf( $ip, 'deploy' => $param->{deploy} );
214     push @table, (
215 dpavlin 216 'mac' => format::mac( $mac => 'html' ),
216 dpavlin 188 'deploy' => html::select( 'deploy', $deploy, config::available )
217     );
218     $deploy = qq|<h2>PXElinux</h2>| . html::pre( config::for_ip( $ip ) );
219     }
220    
221 dpavlin 199 print $client ok
222 dpavlin 162 , qq|<form method=get>|
223 dpavlin 188 , html::table( 2, @table ),
224 dpavlin 162 , qq|<input type=submit value=change></form>|
225 dpavlin 188 , $deploy
226 dpavlin 162 ;
227 dpavlin 181
228     if ( my $amt = client::conf( $ip, 'amt' ) ) {
229 dpavlin 188 print $client qq|<h2>AMT</h2>|, amt::info( $amt );
230 dpavlin 181 }
231 dpavlin 162 } else {
232 dpavlin 190
233     my $arp = {
234     map {
235     my @c = split(/\s+/,$_);
236     if ( $#c == 5 ) {
237     ( uc $c[3] => [ $c[0] , $c[5] ] )
238     } else {
239     }
240     } read_file('/proc/net/arp')
241     };
242    
243     warn "# arp ",dump( $arp );
244    
245 dpavlin 199 print $client ok
246 dpavlin 162 , qq|<h2>Clients on $server::ip</h2>|
247 dpavlin 190 , html::table( -5,
248     'ip', 'hostname', 'mac', 'deploy', 'arp',
249 dpavlin 162 map {
250     my $ip = $_;
251     $ip =~ s{^.+/ip/}{};
252 dpavlin 216 my $mac = client::mac_from_ip $ip;
253     my $arp = $arp->{ $mac };
254 dpavlin 190 $arp = $arp ? $arp->[1] : '';
255     $arp =~ s{$ip}{};
256     (
257     qq|<a href=/client/$ip>$ip</a>|
258     , client::conf( $ip, 'hostname' )
259 dpavlin 216 , format::mac( $mac => 'html' )
260 dpavlin 190 , html::tt( client::conf( $ip, 'deploy' ) )
261     , $arp
262     );
263 dpavlin 162 }
264     glob("$server::conf/ip/*")
265     )
266 dpavlin 190 , qq|<h2>ARP</h2>|
267 dpavlin 193 , html::table( -3, 'mac', 'dev', 'ip',
268     map {
269     my $c = $arp->{$_};
270 dpavlin 216 ( format::mac( $_ => 'html' ), $c->[1], $c->[0] )
271 dpavlin 193 } sort keys %$arp
272     )
273 dpavlin 162 ;
274     }
275 dpavlin 224 } elsif ( $path =~ m{^/ip/?(\w+)?} ) {
276     print $client ok
277     , join("\n", map { qq|<a href=/ip/$_>$_</a>| } ( qw/link addr route neigh ntable tunnel maddr mroute xfrm/ ))
278     , ip::html( $1 )
279     ;
280 dpavlin 43 } elsif ( $path =~ m{^/our/(\w+)/(\S+)} ) {
281     eval 'our $' . $1 . ' = ' . $2;
282     warn $@ if $@;
283 dpavlin 199 print $client redirect($url), qq|<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|;
284 dpavlin 67 server::debug( $debug ) if $1 eq 'debug';
285 dpavlin 158 } elsif ( $path =~ m{^/start_stop/(\S+)} ) {
286 dpavlin 199 print $client redirect, daemons::start_stop($1);
287 dpavlin 88 } elsif ( $path =~ m{^/action/([^/]+)/(.+)} ) {
288     $1->$2();
289 dpavlin 199 print $client redirect;
290 dpavlin 70 } elsif ( $path =~ m{^/kill/static/(\d+)} ) {
291 dpavlin 199 print $client redirect;
292 dpavlin 86 kill 1, $1 || kill 9, $2 && warn "killed $1";
293 dpavlin 43 } else {
294     print $client "HTTP/1.0 404 $path\r\nConnection: close\r\nContent-type: text/html\r\n\r\n<big>404 $path</big>";
295     warn "404 $path";
296     }
297    
298     }
299 dpavlin 53
300 dpavlin 42 sub start {
301    
302 dpavlin 140 warn 'tap ', network::tap();
303    
304 dpavlin 189 daemons::start_stop 'browser', $url;
305     daemons::start_stop $_ foreach ( qw/dhcpd tftpd dnsd/ );
306     daemons::start_stop 'kvm' unless $ENV{DEV}; # skip kvm statup when running on real device
307    
308 dpavlin 42 my $server = IO::Socket::INET->new(
309     Proto => 'tcp',
310 dpavlin 185 LocalAddr => $server::ip,
311 dpavlin 42 LocalPort => $httpd::port,
312     Listen => SOMAXCONN,
313     Reuse => 1
314 dpavlin 43 ) || die "can't start server on $url: $!";
315 dpavlin 42
316     print "url $url\n";
317    
318 dpavlin 118 while (1) {
319     my $client = $server->accept() || next; # ALARM trickle us
320 dpavlin 42 my $request = <$client>;
321    
322     warn "request $request\n" if $debug;
323    
324     if ($request =~ m{^GET (/.*) HTTP/1.[01]}) {
325 dpavlin 43 my $path = $1;
326 dpavlin 42 my $param;
327 dpavlin 43 if ( $path =~ s{\?(.+)}{} ) {
328 dpavlin 42 foreach my $p ( split(/[&;]/, $1) ) {
329     my ($n,$v) = split(/=/, $p, 2);
330     $param->{$n} = $v;
331     }
332     warn "param: ",dump( $param ) if $debug;
333     }
334 dpavlin 43 get_request $client, $path, $param;
335 dpavlin 42 } else {
336     print $client "HTTP/1.0 500 No method\r\nConnection: close\r\nContent-type: text/plain\r\n\r\n500 $request";
337     warn "500 $request";
338     }
339    
340 dpavlin 149 print $client menu() if $client->connected;
341 dpavlin 42
342     }
343    
344     die "server died";
345     }
346    
347 dpavlin 45 warn "loaded";
348    
349 dpavlin 42 1;

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