/[pxelator]/lib/PXElator/httpd.pm
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Annotation of /lib/PXElator/httpd.pm

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Revision 165 - (hide annotations)
Thu Aug 6 18:51:57 2009 UTC (14 years, 7 months ago) by dpavlin
File size: 7884 byte(s)
display client mac addresses
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 153 <a href=/client>client</a>
28 dpavlin 149 </div>
29    
30     }}
31    
32 dpavlin 70 our $pids;
33     $pids = { httpd => $$ } unless defined $pids; # keep pids on refresh
34 dpavlin 66
35     sub DESTROY {
36     warn "pids ",dump( $pids );
37     foreach ( values %$pids ) {
38     warn "kill $_";
39     kill 1,$_ || kill 9, $_;
40     }
41     }
42    
43 dpavlin 42 our $port = 7777;
44    
45     use server;
46 dpavlin 67 our $debug = server::debug;
47 dpavlin 64 our $url = "http://$server::ip:$port";
48 dpavlin 42
49 dpavlin 43 use html;
50 dpavlin 70 our $static_pids;
51 dpavlin 115 use progress_bar;
52 dpavlin 153 use config;
53 dpavlin 159 use client;
54     use log;
55 dpavlin 43
56 dpavlin 42 sub static {
57     my ($client,$path) = @_;
58    
59 dpavlin 65 my $full = "$server::base_dir/tftp/$path";
60 dpavlin 42
61 dpavlin 65 return if ! -f $full;
62 dpavlin 42
63 dpavlin 70 if ( my $pid = fork ) {
64     # parent
65     close($client);
66     print "http static child $pid\n";
67     $static_pids->{$pid} = $path;
68     return 1;
69     }
70    
71 dpavlin 65 my $type = 'application/octet-stream';
72 dpavlin 42 $type = 'text/html' if $path =~ m{\.htm};
73     $type = 'application/javascript' if $path =~ m{\.js};
74 dpavlin 65 $type = 'text/plain' if $path =~ m{\.txt};
75 dpavlin 42
76 dpavlin 65 my $size = -s $full || return;
77    
78     print $client "HTTP/1.0 200 OK\r\nContent-Type: $type\r\nContent-Length: $size\r\nConnection: close\r\n\r\n";
79    
80     open(my $fh, $full);
81    
82 dpavlin 96 my $block = 1400; # try not to fragment packages (pxelinux seems to have problems with it)
83 dpavlin 65 my $buff;
84     my $pos = 0;
85    
86 dpavlin 105 warn "static $path $type $size block: $block\n";
87 dpavlin 96
88 dpavlin 115 progress_bar::start;
89 dpavlin 105
90 dpavlin 65 while( my $len = read $fh, $buff, $block ) {
91 dpavlin 107 print $client $buff;
92 dpavlin 105 $client->flush;
93 dpavlin 65 $pos += $len;
94 dpavlin 115 progress_bar::tick( $path, $pos, $size );
95 dpavlin 42 }
96 dpavlin 65 close($fh);
97     close($client);
98 dpavlin 42
99 dpavlin 105 print STDERR "\n";
100 dpavlin 65
101 dpavlin 107 warn "exit static child";
102    
103     exit(0);
104 dpavlin 42 }
105    
106 dpavlin 43 use boolean;
107 dpavlin 57
108     use kvm;
109 dpavlin 165 use qemu; $pids->{qemu} = 'stopped';
110 dpavlin 42
111 dpavlin 57 $SIG{CHLD} = 'IGNORE';
112    
113     sub start_stop {
114     my $daemon = shift;
115 dpavlin 136 my $pid = $pids->{$daemon} || 'not started';
116 dpavlin 57
117 dpavlin 96 warn "start_stop $daemon $pid\n";
118 dpavlin 57
119 dpavlin 67 if ( $pid =~ m{^\d+$} ) {
120 dpavlin 77 my $pstree = `pstree -p $pid`;
121     my @pids = $pstree =~ m{\((\d+)\)}g;
122     warn "pstree $pstree pids ",dump( @pids );
123     kill 1, $_ foreach reverse @pids;
124 dpavlin 66 $pids->{$daemon} = 'stopped';
125 dpavlin 57 return qq|$daemon pid $pid stopped|;
126     } else {
127     if ( $pid = fork ) {
128     # parent
129     $pids->{$daemon} = $pid;
130 dpavlin 96 warn "forked $daemon $pid\n";
131 dpavlin 57 return qq|$daemon pid $pid started|;
132     } elsif ( defined $pid ) {
133     # child
134 dpavlin 81 my $invoke = 'start';
135     $invoke = $1 if $daemon =~ s{/(.+)}{};
136 dpavlin 158 if ( $daemon =~ m{dhcpd|tftpd|dnsd} ) {
137     my $exec = "perl -I$server::base_dir/lib -I$server::base_dir/lib/PXElator -M$daemon -e ${daemon}::${invoke}";
138     warn "exec $exec";
139     exec "xterm -T $daemon -n $daemon -e $exec";
140     } else {
141     my $eval = $daemon . '::' . $invoke . '(' . ( @_ ? dump(@_) : '' ) . ')';
142     warn "eval $eval";
143     eval $eval;
144     warn "can't start $daemon: $@" if $@;
145     }
146 dpavlin 57 exit;
147     } else {
148     die "fork error $!";
149     }
150     }
151     }
152    
153 dpavlin 162 my $ok = qq|HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n| . menu();
154 dpavlin 67 my $redirect = qq|HTTP/1.1 302 Found\r\nContent-type: text/html\r\nLocation: $url\r\n\r\n|;
155    
156 dpavlin 43 sub get_request {
157     my ( $client, $path, $param ) = @_;
158    
159 dpavlin 128 server->refresh;
160    
161 dpavlin 96 warn "get_request $path ", $param ? dump( $param ) : '', "\n";
162 dpavlin 43
163     if ( my $found = static( $client,$path ) ) {
164     warn "static $found" if $debug;
165     } elsif ( $path eq '/' ) {
166 dpavlin 53
167 dpavlin 66 my @rows = (
168 dpavlin 64 'debug', qq|<a href=/our/debug/| . boolean::toggle($debug) . qq|>$debug</a>|,
169 dpavlin 43 );
170 dpavlin 70
171 dpavlin 96 my $debug_proc = '';
172 dpavlin 71
173 dpavlin 78 warn 'pids: ', dump( $pids ) if $debug;
174 dpavlin 87 foreach my $name ( sort keys %$pids ) {
175 dpavlin 66 my $pid = $pids->{$name} || next;
176 dpavlin 43
177 dpavlin 89 my $html = qq|<a href=/start_stop/$name>$pid</a>|;
178 dpavlin 66
179 dpavlin 81 my $proc = "/proc/$pid/status";
180 dpavlin 71
181 dpavlin 81 if ( -e $proc ) {
182     if ( $debug ) {
183     $html .= qq| <a name=$pid href=#proc-$pid>?</a>|;
184    
185     $debug_proc
186     .= qq|<a name=proc-$pid href=#$pid>$proc</a><pre style="font-size: 10%">|
187     . read_file($proc)
188     . qq|</pre>|
189     ;
190     }
191    
192 dpavlin 88 if ( $name->can('start_fork') ) {
193     $html .= qq| <a href=/start_stop/kvm/$_>$_</a>| foreach $name->start_fork;
194 dpavlin 81 }
195 dpavlin 88
196     if ( $name->can('actions') ) {
197     $html .= qq| <a href=/action/kvm/$_>$_</a>| foreach $name->actions;
198     }
199 dpavlin 71 }
200    
201 dpavlin 66 push @rows, ( $name => $html );
202     }
203    
204 dpavlin 91 my $below_table = '';
205    
206 dpavlin 78 warn 'static_pids: ', dump( $static_pids ) if $debug;
207 dpavlin 70 foreach my $pid ( keys %$static_pids ) {
208     my $path = $static_pids->{$pid};
209     if ( -d "/proc/$pid" ) {
210     push @rows, ( $path => qq|<a href=/kill/static/$pid>$pid</a>| );
211 dpavlin 91 } elsif ( $param->{clean_completed_downloads} ) {
212     delete $static_pids->{$pid}
213 dpavlin 70 } else {
214     push @rows, ( $path => "$pid competed" );
215 dpavlin 91 $below_table = qq|<a href="/?clean_completed_downloads=1">clean completed downloads</a>|;
216 dpavlin 70 }
217     }
218    
219 dpavlin 72 print $client $ok
220     , html::table( 2, @rows )
221 dpavlin 91 , $below_table
222 dpavlin 72 , html::tabs( log::mac_changes )
223     , $debug_proc
224     ;
225 dpavlin 66
226 dpavlin 149 } elsif ( $path =~ m{^/server} ) {
227     print $client $ok
228     , html::table( 2, map { ( $_, eval '$server::'.$_ ) } ( 'ip', 'netmask', 'ip_from', 'ip_to', 'domain_name', 'base_dir' ) )
229     ;
230 dpavlin 162 } elsif ( $path =~ m!^/client(?:/$RE{net}{IPv4}{-keep})?! ) {
231     my $ip = $1 || $client->peerhost;
232     if ( $ip ne $server::ip ) {
233     my $hostname = client::conf( $ip, 'hostname' => $param->{hostname} );
234     my $deploy = client::conf( $ip, 'deploy' => $param->{deploy} );
235     print $client $ok
236     , qq|<form method=get>|
237     , html::table( 2,
238     'ip' => $ip,
239 dpavlin 165 'mac' => client::mac( $ip ),
240 dpavlin 162 'hostname' => qq|<input type=text name=hostname value=$hostname>|,
241     'deploy' => html::select( 'deploy', $deploy, config::available ),
242     )
243     , qq|<input type=submit value=change></form>|
244     , qq|<h2>PXElinux $deploy</h2><pre>|
245     , config::for_ip( $ip )
246     , qq|</pre>|
247     ;
248     } else {
249     print $client $ok
250     , qq|<h2>Clients on $server::ip</h2>|
251     , qq|<ul>|
252     , join("\n",
253     map {
254     my $ip = $_;
255     $ip =~ s{^.+/ip/}{};
256 dpavlin 165 qq|<li><a href=/client/$ip>$ip</a> |, client::mac($ip), qq|</li>|;
257 dpavlin 162 }
258     glob("$server::conf/ip/*")
259     )
260     , qq|</ul>|
261     ;
262     }
263 dpavlin 43 } elsif ( $path =~ m{^/our/(\w+)/(\S+)} ) {
264     eval 'our $' . $1 . ' = ' . $2;
265     warn $@ if $@;
266 dpavlin 67 print $client $redirect, qq|<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|;
267     server::debug( $debug ) if $1 eq 'debug';
268 dpavlin 158 } elsif ( $path =~ m{^/start_stop/(\S+)} ) {
269 dpavlin 67 print $client $redirect, start_stop($1);
270 dpavlin 88 } elsif ( $path =~ m{^/action/([^/]+)/(.+)} ) {
271     $1->$2();
272     print $client $redirect;
273 dpavlin 70 } elsif ( $path =~ m{^/kill/static/(\d+)} ) {
274     print $client $redirect;
275 dpavlin 86 kill 1, $1 || kill 9, $2 && warn "killed $1";
276 dpavlin 43 } else {
277     print $client "HTTP/1.0 404 $path\r\nConnection: close\r\nContent-type: text/html\r\n\r\n<big>404 $path</big>";
278     warn "404 $path";
279     }
280    
281     }
282 dpavlin 53
283 dpavlin 66 use browser;
284 dpavlin 140 use network;
285 dpavlin 66
286 dpavlin 42 sub start {
287    
288 dpavlin 140 warn 'tap ', network::tap();
289    
290 dpavlin 42 my $server = IO::Socket::INET->new(
291     Proto => 'tcp',
292     LocalPort => $httpd::port,
293     Listen => SOMAXCONN,
294     Reuse => 1
295 dpavlin 43 ) || die "can't start server on $url: $!";
296 dpavlin 42
297     print "url $url\n";
298    
299 dpavlin 66 start_stop 'browser', $url;
300 dpavlin 158 start_stop 'dhcpd';
301     start_stop 'tftpd';
302     start_stop 'dnsd';
303 dpavlin 66 start_stop 'kvm';
304 dpavlin 42
305 dpavlin 118 while (1) {
306     my $client = $server->accept() || next; # ALARM trickle us
307 dpavlin 42 my $request = <$client>;
308    
309     warn "request $request\n" if $debug;
310    
311     if ($request =~ m{^GET (/.*) HTTP/1.[01]}) {
312 dpavlin 43 my $path = $1;
313 dpavlin 42 my $param;
314 dpavlin 43 if ( $path =~ s{\?(.+)}{} ) {
315 dpavlin 42 foreach my $p ( split(/[&;]/, $1) ) {
316     my ($n,$v) = split(/=/, $p, 2);
317     $param->{$n} = $v;
318     }
319     warn "param: ",dump( $param ) if $debug;
320     }
321 dpavlin 43 get_request $client, $path, $param;
322 dpavlin 42 } else {
323     print $client "HTTP/1.0 500 No method\r\nConnection: close\r\nContent-type: text/plain\r\n\r\n500 $request";
324     warn "500 $request";
325     }
326    
327 dpavlin 149 print $client menu() if $client->connected;
328 dpavlin 42
329     }
330    
331     die "server died";
332     }
333    
334 dpavlin 45 warn "loaded";
335    
336 dpavlin 42 1;

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