1 |
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 |
use Module::Refresh; |
21 |
|
22 |
our $pids; |
23 |
$pids = { httpd => $$ } unless defined $pids; # keep pids on refresh |
24 |
|
25 |
sub DESTROY { |
26 |
warn "pids ",dump( $pids ); |
27 |
foreach ( values %$pids ) { |
28 |
warn "kill $_"; |
29 |
kill 1,$_ || kill 9, $_; |
30 |
} |
31 |
} |
32 |
|
33 |
our $port = 7777; |
34 |
|
35 |
use server; |
36 |
our $debug = server::debug; |
37 |
our $url = "http://$server::ip:$port"; |
38 |
|
39 |
use html; |
40 |
our $static_pids; |
41 |
|
42 |
sub static { |
43 |
my ($client,$path) = @_; |
44 |
|
45 |
my $full = "$server::base_dir/tftp/$path"; |
46 |
|
47 |
return if ! -f $full; |
48 |
|
49 |
if ( my $pid = fork ) { |
50 |
# parent |
51 |
close($client); |
52 |
print "http static child $pid\n"; |
53 |
$static_pids->{$pid} = $path; |
54 |
return 1; |
55 |
} |
56 |
|
57 |
my $type = 'application/octet-stream'; |
58 |
$type = 'text/html' if $path =~ m{\.htm}; |
59 |
$type = 'application/javascript' if $path =~ m{\.js}; |
60 |
$type = 'text/plain' if $path =~ m{\.txt}; |
61 |
|
62 |
my $size = -s $full || return; |
63 |
|
64 |
print $client "HTTP/1.0 200 OK\r\nContent-Type: $type\r\nContent-Length: $size\r\nConnection: close\r\n\r\n"; |
65 |
|
66 |
open(my $fh, $full); |
67 |
print "static $path $type $size\n"; |
68 |
|
69 |
my $block = 8192; |
70 |
my $buff; |
71 |
my $pos = 0; |
72 |
|
73 |
while( my $len = read $fh, $buff, $block ) { |
74 |
print $client $buff; |
75 |
$pos += $len; |
76 |
printf "%s %d/%d %.2f%%\r", $path, $pos, $size, $pos * 100 / $size; |
77 |
} |
78 |
close($fh); |
79 |
close($client); |
80 |
|
81 |
print "$path $pos == $size OK\n"; |
82 |
|
83 |
exit; |
84 |
} |
85 |
|
86 |
use boolean; |
87 |
|
88 |
use screen; |
89 |
use kvm; |
90 |
|
91 |
$SIG{CHLD} = 'IGNORE'; |
92 |
|
93 |
sub start_stop { |
94 |
my $daemon = shift; |
95 |
my $pid = $pids->{$daemon}; |
96 |
|
97 |
warn "start_stop $daemon $pid pids: ",dump( $pids ); |
98 |
|
99 |
if ( $pid =~ m{^\d+$} ) { |
100 |
my $pstree = `pstree -p $pid`; |
101 |
my @pids = $pstree =~ m{\((\d+)\)}g; |
102 |
warn "pstree $pstree pids ",dump( @pids ); |
103 |
kill 1, $_ foreach reverse @pids; |
104 |
$pids->{$daemon} = 'stopped'; |
105 |
return qq|$daemon pid $pid stopped|; |
106 |
} else { |
107 |
if ( $pid = fork ) { |
108 |
# parent |
109 |
$pids->{$daemon} = $pid; |
110 |
warn "forked $daemon $pid"; |
111 |
return qq|$daemon pid $pid started|; |
112 |
} elsif ( defined $pid ) { |
113 |
# child |
114 |
my $eval = $daemon . '::start(' . ( @_ ? dump(@_) : '' ) . ')'; |
115 |
warn "eval $eval"; |
116 |
eval $eval; |
117 |
warn "can't start $daemon: $@" if $@; |
118 |
exit; |
119 |
} else { |
120 |
die "fork error $!"; |
121 |
} |
122 |
} |
123 |
} |
124 |
|
125 |
my $ok = qq|HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n|; |
126 |
my $redirect = qq|HTTP/1.1 302 Found\r\nContent-type: text/html\r\nLocation: $url\r\n\r\n|; |
127 |
|
128 |
sub get_request { |
129 |
my ( $client, $path, $param ) = @_; |
130 |
|
131 |
warn "get_request $client $path ",dump( $param ); |
132 |
|
133 |
if ( my $found = static( $client,$path ) ) { |
134 |
warn "static $found" if $debug; |
135 |
} elsif ( $path eq '/' ) { |
136 |
|
137 |
my $screen = $pids->{screen} ? qq|stop <tt>$pids->{screen}</tt>| : 'start'; |
138 |
my $kvm = $pids->{kvm} ? qq|stop <tt>$pids->{kvm}</tt>| : |
139 |
$pids->{screen} ? qq|start| : qq|start screen first|; |
140 |
|
141 |
my @rows = ( |
142 |
'ip', html::tt( $server::ip ), |
143 |
'netmask', html::tt( $server::netmask ), |
144 |
|
145 |
'debug', qq|<a href=/our/debug/| . boolean::toggle($debug) . qq|>$debug</a>|, |
146 |
); |
147 |
|
148 |
my $debug_proc; |
149 |
|
150 |
warn 'pids: ', dump( $pids ); |
151 |
foreach my $name ( keys %$pids ) { |
152 |
my $pid = $pids->{$name} || next; |
153 |
|
154 |
my $html = qq|<a href=/$name>$pid</a>|; |
155 |
|
156 |
if ( $debug ) { |
157 |
$html .= qq| <a name=$pid href=#proc-$pid>?</a>|; |
158 |
|
159 |
my $proc = "/proc/$pid/status"; |
160 |
$debug_proc |
161 |
.= qq|<a name=proc-$pid href=#$pid>$proc</a><pre style="font-size: 10%">| |
162 |
. read_file($proc) |
163 |
. qq|</pre>| |
164 |
if -e $proc; |
165 |
} |
166 |
|
167 |
push @rows, ( $name => $html ); |
168 |
} |
169 |
|
170 |
warn 'static_pids: ', dump( $static_pids ); |
171 |
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 |
} else { |
176 |
push @rows, ( $path => "$pid competed" ); |
177 |
} |
178 |
} |
179 |
|
180 |
print $client $ok |
181 |
, html::table( 2, @rows ) |
182 |
, html::tabs( log::mac_changes ) |
183 |
, $debug_proc |
184 |
; |
185 |
|
186 |
} elsif ( $path =~ m{^/our/(\w+)/(\S+)} ) { |
187 |
eval 'our $' . $1 . ' = ' . $2; |
188 |
warn $@ if $@; |
189 |
print $client $redirect, qq|<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|; |
190 |
server::debug( $debug ) if $1 eq 'debug'; |
191 |
} elsif ( $path =~ m{^/(screen|kvm)} ) { |
192 |
print $client $redirect, start_stop($1); |
193 |
} elsif ( $path =~ m{^/kill/static/(\d+)} ) { |
194 |
print $client $redirect; |
195 |
kill 9, $1 && warn "killed $1"; |
196 |
} elsif ( $path eq '/exit' ) { |
197 |
# DESTROY; |
198 |
exit 0; |
199 |
} elsif ( $path =~ m{/boot} ) { |
200 |
print $client qq{$ok |
201 |
#!gpxe |
202 |
imgfree |
203 |
login |
204 |
chain http://$server::ip:$httpd::port/ |
205 |
|
206 |
}; |
207 |
} else { |
208 |
print $client "HTTP/1.0 404 $path\r\nConnection: close\r\nContent-type: text/html\r\n\r\n<big>404 $path</big>"; |
209 |
warn "404 $path"; |
210 |
} |
211 |
|
212 |
} |
213 |
|
214 |
use browser; |
215 |
|
216 |
sub start { |
217 |
|
218 |
my $server = IO::Socket::INET->new( |
219 |
Proto => 'tcp', |
220 |
LocalPort => $httpd::port, |
221 |
Listen => SOMAXCONN, |
222 |
Reuse => 1 |
223 |
) || die "can't start server on $url: $!"; |
224 |
|
225 |
print "url $url\n"; |
226 |
|
227 |
start_stop 'browser', $url; |
228 |
start_stop 'screen'; |
229 |
start_stop 'kvm'; |
230 |
|
231 |
while (my $client = $server->accept()) { |
232 |
$client->autoflush(1); |
233 |
my $request = <$client>; |
234 |
|
235 |
warn "request $request\n" if $debug; |
236 |
|
237 |
Module::Refresh->refresh; |
238 |
|
239 |
if ($request =~ m{^GET (/.*) HTTP/1.[01]}) { |
240 |
my $path = $1; |
241 |
my $param; |
242 |
if ( $path =~ s{\?(.+)}{} ) { |
243 |
foreach my $p ( split(/[&;]/, $1) ) { |
244 |
my ($n,$v) = split(/=/, $p, 2); |
245 |
$param->{$n} = $v; |
246 |
} |
247 |
warn "param: ",dump( $param ) if $debug; |
248 |
} |
249 |
warn "path $path param: ",dump( $param ); |
250 |
get_request $client, $path, $param; |
251 |
} else { |
252 |
print $client "HTTP/1.0 500 No method\r\nConnection: close\r\nContent-type: text/plain\r\n\r\n500 $request"; |
253 |
warn "500 $request"; |
254 |
} |
255 |
|
256 |
print $client qq{ |
257 |
<div style="font-size: 80%; color: #888"> |
258 |
<a href="">reload</a> |
259 |
<a href=/>index</a> |
260 |
<a href=/exit>exit</a> |
261 |
</div> |
262 |
} if $client->connected; |
263 |
|
264 |
} |
265 |
|
266 |
die "server died"; |
267 |
} |
268 |
|
269 |
warn "loaded"; |
270 |
|
271 |
1; |