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

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Revision 173 - (hide annotations)
Thu Aug 6 22:29:58 2009 UTC (14 years, 7 months ago) by dpavlin
File size: 8002 byte(s)
use x11::xterm, detect existed processes, show clients in table

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 $static_pids;
51 dpavlin 115 use progress_bar;
52 dpavlin 153 use config;
53 dpavlin 159 use client;
54     use log;
55 dpavlin 173 use x11;
56 dpavlin 43
57 dpavlin 42 sub static {
58     my ($client,$path) = @_;
59    
60 dpavlin 65 my $full = "$server::base_dir/tftp/$path";
61 dpavlin 42
62 dpavlin 65 return if ! -f $full;
63 dpavlin 42
64 dpavlin 70 if ( my $pid = fork ) {
65     # parent
66     close($client);
67     print "http static child $pid\n";
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 105 warn "static $path $type $size block: $block\n";
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 warn "exit static child";
103    
104     exit(0);
105 dpavlin 42 }
106    
107 dpavlin 43 use boolean;
108 dpavlin 57
109     use kvm;
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 dpavlin 173 x11::xterm( $daemon => $exec );
140 dpavlin 158 } 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 173 my $html;
178 dpavlin 66
179 dpavlin 81 my $proc = "/proc/$pid/status";
180 dpavlin 71
181 dpavlin 81 if ( -e $proc ) {
182 dpavlin 173 $html .= qq|<a href=/start_stop/$name>$pid</a>|;
183 dpavlin 81 if ( $debug ) {
184     $html .= qq| <a name=$pid href=#proc-$pid>?</a>|;
185    
186     $debug_proc
187     .= qq|<a name=proc-$pid href=#$pid>$proc</a><pre style="font-size: 10%">|
188     . read_file($proc)
189     . qq|</pre>|
190     ;
191     }
192    
193 dpavlin 88 if ( $name->can('start_fork') ) {
194     $html .= qq| <a href=/start_stop/kvm/$_>$_</a>| foreach $name->start_fork;
195 dpavlin 81 }
196 dpavlin 88
197     if ( $name->can('actions') ) {
198     $html .= qq| <a href=/action/kvm/$_>$_</a>| foreach $name->actions;
199     }
200 dpavlin 173 } else {
201     $html .= qq|<a href=/start_stop/$name>restart</a> $pid exited|;
202 dpavlin 71 }
203    
204 dpavlin 66 push @rows, ( $name => $html );
205     }
206    
207 dpavlin 91 my $below_table = '';
208    
209 dpavlin 78 warn 'static_pids: ', dump( $static_pids ) if $debug;
210 dpavlin 70 foreach my $pid ( keys %$static_pids ) {
211     my $path = $static_pids->{$pid};
212     if ( -d "/proc/$pid" ) {
213     push @rows, ( $path => qq|<a href=/kill/static/$pid>$pid</a>| );
214 dpavlin 91 } elsif ( $param->{clean_completed_downloads} ) {
215     delete $static_pids->{$pid}
216 dpavlin 70 } else {
217     push @rows, ( $path => "$pid competed" );
218 dpavlin 91 $below_table = qq|<a href="/?clean_completed_downloads=1">clean completed downloads</a>|;
219 dpavlin 70 }
220     }
221    
222 dpavlin 72 print $client $ok
223     , html::table( 2, @rows )
224 dpavlin 91 , $below_table
225 dpavlin 72 , html::tabs( log::mac_changes )
226     , $debug_proc
227     ;
228 dpavlin 66
229 dpavlin 149 } elsif ( $path =~ m{^/server} ) {
230     print $client $ok
231     , html::table( 2, map { ( $_, eval '$server::'.$_ ) } ( 'ip', 'netmask', 'ip_from', 'ip_to', 'domain_name', 'base_dir' ) )
232     ;
233 dpavlin 162 } elsif ( $path =~ m!^/client(?:/$RE{net}{IPv4}{-keep})?! ) {
234     my $ip = $1 || $client->peerhost;
235     if ( $ip ne $server::ip ) {
236     my $hostname = client::conf( $ip, 'hostname' => $param->{hostname} );
237     my $deploy = client::conf( $ip, 'deploy' => $param->{deploy} );
238     print $client $ok
239     , qq|<form method=get>|
240     , html::table( 2,
241     'ip' => $ip,
242 dpavlin 165 'mac' => client::mac( $ip ),
243 dpavlin 162 'hostname' => qq|<input type=text name=hostname value=$hostname>|,
244     'deploy' => html::select( 'deploy', $deploy, config::available ),
245     )
246     , qq|<input type=submit value=change></form>|
247     , qq|<h2>PXElinux $deploy</h2><pre>|
248     , config::for_ip( $ip )
249     , qq|</pre>|
250     ;
251     } else {
252     print $client $ok
253     , qq|<h2>Clients on $server::ip</h2>|
254 dpavlin 173 , html::table( -4,
255     'ip', 'mac', 'hostname', 'deploy',
256 dpavlin 162 map {
257     my $ip = $_;
258     $ip =~ s{^.+/ip/}{};
259 dpavlin 173 ( qq|<a href=/client/$ip>$ip</a>|, client::mac($ip), client::conf( $ip, 'hostname' ), client::conf( $ip, 'deploy' ) );
260 dpavlin 162 }
261     glob("$server::conf/ip/*")
262     )
263     ;
264     }
265 dpavlin 43 } elsif ( $path =~ m{^/our/(\w+)/(\S+)} ) {
266     eval 'our $' . $1 . ' = ' . $2;
267     warn $@ if $@;
268 dpavlin 67 print $client $redirect, qq|<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|;
269     server::debug( $debug ) if $1 eq 'debug';
270 dpavlin 158 } elsif ( $path =~ m{^/start_stop/(\S+)} ) {
271 dpavlin 67 print $client $redirect, start_stop($1);
272 dpavlin 88 } elsif ( $path =~ m{^/action/([^/]+)/(.+)} ) {
273     $1->$2();
274     print $client $redirect;
275 dpavlin 70 } elsif ( $path =~ m{^/kill/static/(\d+)} ) {
276     print $client $redirect;
277 dpavlin 86 kill 1, $1 || kill 9, $2 && warn "killed $1";
278 dpavlin 43 } else {
279     print $client "HTTP/1.0 404 $path\r\nConnection: close\r\nContent-type: text/html\r\n\r\n<big>404 $path</big>";
280     warn "404 $path";
281     }
282    
283     }
284 dpavlin 53
285 dpavlin 66 use browser;
286 dpavlin 140 use network;
287 dpavlin 66
288 dpavlin 42 sub start {
289    
290 dpavlin 140 warn 'tap ', network::tap();
291    
292 dpavlin 42 my $server = IO::Socket::INET->new(
293     Proto => 'tcp',
294     LocalPort => $httpd::port,
295     Listen => SOMAXCONN,
296     Reuse => 1
297 dpavlin 43 ) || die "can't start server on $url: $!";
298 dpavlin 42
299     print "url $url\n";
300    
301 dpavlin 66 start_stop 'browser', $url;
302 dpavlin 158 start_stop 'dhcpd';
303     start_stop 'tftpd';
304     start_stop 'dnsd';
305 dpavlin 66 start_stop 'kvm';
306 dpavlin 42
307 dpavlin 118 while (1) {
308     my $client = $server->accept() || next; # ALARM trickle us
309 dpavlin 42 my $request = <$client>;
310    
311     warn "request $request\n" if $debug;
312    
313     if ($request =~ m{^GET (/.*) HTTP/1.[01]}) {
314 dpavlin 43 my $path = $1;
315 dpavlin 42 my $param;
316 dpavlin 43 if ( $path =~ s{\?(.+)}{} ) {
317 dpavlin 42 foreach my $p ( split(/[&;]/, $1) ) {
318     my ($n,$v) = split(/=/, $p, 2);
319     $param->{$n} = $v;
320     }
321     warn "param: ",dump( $param ) if $debug;
322     }
323 dpavlin 43 get_request $client, $path, $param;
324 dpavlin 42 } else {
325     print $client "HTTP/1.0 500 No method\r\nConnection: close\r\nContent-type: text/plain\r\n\r\n500 $request";
326     warn "500 $request";
327     }
328    
329 dpavlin 149 print $client menu() if $client->connected;
330 dpavlin 42
331     }
332    
333     die "server died";
334     }
335    
336 dpavlin 45 warn "loaded";
337    
338 dpavlin 42 1;

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