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

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Revision 65 - (hide annotations)
Thu Jul 30 17:07:48 2009 UTC (14 years, 8 months ago) by dpavlin
File size: 4356 byte(s)
correct static file serving and implement progress bar

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 43 use Module::Refresh;
21 dpavlin 42
22     our $port = 7777;
23     our $debug = 1;
24    
25     use server;
26 dpavlin 64 our $url = "http://$server::ip:$port";
27 dpavlin 42
28 dpavlin 43 use html;
29    
30 dpavlin 42 sub static {
31     my ($client,$path) = @_;
32    
33 dpavlin 65 my $full = "$server::base_dir/tftp/$path";
34 dpavlin 42
35 dpavlin 65 return if ! -f $full;
36 dpavlin 42
37 dpavlin 65 my $type = 'application/octet-stream';
38 dpavlin 42 $type = 'text/html' if $path =~ m{\.htm};
39     $type = 'application/javascript' if $path =~ m{\.js};
40 dpavlin 65 $type = 'text/plain' if $path =~ m{\.txt};
41 dpavlin 42
42 dpavlin 65 my $size = -s $full || return;
43    
44     print $client "HTTP/1.0 200 OK\r\nContent-Type: $type\r\nContent-Length: $size\r\nConnection: close\r\n\r\n";
45    
46     open(my $fh, $full);
47     print "static $path $type $size\n";
48    
49     my $block = 8192;
50     my $buff;
51     my $pos = 0;
52    
53     while( my $len = read $fh, $buff, $block ) {
54     print $client $buff;
55     $pos += $len;
56     printf "%s %d/%d %.2f%%\r", $path, $pos, $size, $pos * 100 / $size;
57 dpavlin 42 }
58 dpavlin 65 close($fh);
59     close($client);
60 dpavlin 42
61 dpavlin 65 print "$path $pos == $size OK\n";
62    
63 dpavlin 42 return $path;
64     }
65    
66     my $ok = "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n";
67    
68 dpavlin 43 use boolean;
69 dpavlin 57
70 dpavlin 53 use screen;
71 dpavlin 57 use kvm;
72     our $pids;
73 dpavlin 42
74 dpavlin 57 $SIG{CHLD} = 'IGNORE';
75    
76     sub start_stop {
77     my $daemon = shift;
78     my $pid = $pids->{$daemon};
79    
80     warn "start_stop $daemon pids: ",dump( $pids );
81    
82     if ( $pid ) {
83     warn "kill 9 $pid";
84     kill 9, $pid;
85     delete $pids->{$daemon};
86     return qq|$daemon pid $pid stopped|;
87     } else {
88     if ( $pid = fork ) {
89     # parent
90     $pids->{$daemon} = $pid;
91     warn "forked $daemon $pid";
92     return qq|$daemon pid $pid started|;
93     } elsif ( defined $pid ) {
94     # child
95     my $eval = $daemon . '::start';
96     warn "eval $eval";
97     eval $eval;
98     warn "can't start $daemon: $@" if $@;
99     exit;
100     } else {
101     die "fork error $!";
102     }
103     }
104     }
105    
106 dpavlin 43 sub get_request {
107     my ( $client, $path, $param ) = @_;
108    
109 dpavlin 53 warn "get_request $client $path ",dump( $param );
110 dpavlin 43
111     if ( my $found = static( $client,$path ) ) {
112     warn "static $found" if $debug;
113     } elsif ( $path eq '/' ) {
114 dpavlin 53
115 dpavlin 57 my $screen = $pids->{screen} ? qq|stop <tt>$pids->{screen}</tt>| : 'start';
116     my $kvm = $pids->{kvm} ? qq|stop <tt>$pids->{kvm}</tt>| :
117     $pids->{screen} ? qq|start| : qq|start screen first|;
118 dpavlin 53
119 dpavlin 43 print $client $ok,
120     html::table( 2,
121 dpavlin 64 'pid', html::tt( $$ ),
122     'ip', html::tt( $server::ip ),
123     'netmask', html::tt( $server::netmask ),
124     'debug', qq|<a href=/our/debug/| . boolean::toggle($debug) . qq|>$debug</a>|,
125     'screen', qq|<a href=/screen>$screen</a>|,
126     'kvm', qq|<a href=/kvm>$kvm</a>|,
127 dpavlin 43 );
128    
129     } elsif ( $path =~ m{^/our/(\w+)/(\S+)} ) {
130     eval 'our $' . $1 . ' = ' . $2;
131     warn $@ if $@;
132     print $client qq|HTTP/1.1 302 Found\r\nLocation: $url\r\nContent-type: text/html\r\n\r\n<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|;
133 dpavlin 57 } elsif ( $path =~ m{^/(screen|kvm)} ) {
134     print $client $ok, start_stop($1);
135 dpavlin 43 } elsif ( $path =~ m{/boot} ) {
136     print $client qq{$ok
137     #!gpxe
138     imgfree
139     login
140     chain http://$server::ip:$httpd::port/
141    
142     };
143     } else {
144     print $client "HTTP/1.0 404 $path\r\nConnection: close\r\nContent-type: text/html\r\n\r\n<big>404 $path</big>";
145     warn "404 $path";
146     }
147    
148     }
149 dpavlin 53
150 dpavlin 42 sub start {
151    
152     my $server = IO::Socket::INET->new(
153     Proto => 'tcp',
154     LocalPort => $httpd::port,
155     Listen => SOMAXCONN,
156     Reuse => 1
157 dpavlin 43 ) || die "can't start server on $url: $!";
158 dpavlin 42
159     print "url $url\n";
160    
161     system "/mnt/llin/rest/cvs/uzbl/uzbl -u $url &";
162    
163     while (my $client = $server->accept()) {
164     $client->autoflush(1);
165     my $request = <$client>;
166    
167     warn "request $request\n" if $debug;
168    
169 dpavlin 43 Module::Refresh->refresh;
170    
171 dpavlin 42 if ($request =~ m{^GET (/.*) HTTP/1.[01]}) {
172 dpavlin 43 my $path = $1;
173 dpavlin 42 my $param;
174 dpavlin 43 if ( $path =~ s{\?(.+)}{} ) {
175 dpavlin 42 foreach my $p ( split(/[&;]/, $1) ) {
176     my ($n,$v) = split(/=/, $p, 2);
177     $param->{$n} = $v;
178     }
179     warn "param: ",dump( $param ) if $debug;
180     }
181 dpavlin 43 warn "path $path param: ",dump( $param );
182     get_request $client, $path, $param;
183 dpavlin 42 } else {
184     print $client "HTTP/1.0 500 No method\r\nConnection: close\r\nContent-type: text/plain\r\n\r\n500 $request";
185     warn "500 $request";
186     }
187    
188     print $client qq{
189 dpavlin 43 <div style="font-size: 80%; color: #888">
190     <a href="">reload</a>
191     <a href="/">index</a>
192     </div>
193     } if $client->connected;
194 dpavlin 42
195     }
196    
197     die "server died";
198     }
199    
200 dpavlin 45 warn "loaded";
201    
202 dpavlin 42 1;

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