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package install::http; # $Id$
use IO::Socket;
my $sock;
sub close() {
$sock->close if $sock;
}
sub getFile {
my ($url) = @_;
my ($_size, $fh) = get_file_and_size($url) or return;
$fh;
}
sub parse_http_url {
my ($url) = @_;
$url =~ m,^(?:http|ftp)://([^/:]+)(?::(\d+))?(/\S*)?$,;
}
sub get_file_and_size_ {
my ($f, $url) = @_;
if ($f =~ m!^/!) {
my ($host, $port, $_path) = parse_http_url($url);
get_file_and_size("http://$host" . ($port ? ":$port" : '') . $f);
} else {
get_file_and_size("$url/$f");
}
}
sub get_file_and_size {
local ($^W) = 0;
my ($url) = @_;
$sock->close if $sock;
# can be used for ftp urls (with http proxy)
my ($host, $port, $path) = parse_http_url($url);
defined $host or return undef;
my $use_http_proxy = $ENV{PROXY} && $ENV{PROXYPORT};
$sock = IO::Socket::INET->new(PeerAddr => $use_http_proxy ? $ENV{PROXY} : $host,
PeerPort => $use_http_proxy ? $ENV{PROXYPORT} : $port || 80,
Proto => 'tcp',
Timeout => 60) or die "can not connect $@";
$sock->autoflush;
print $sock join("\015\012" =>
"GET " . ($use_http_proxy ? $url : $path) . " HTTP/1.0",
"Host: $host" . ($port && ":$port"),
"User-Agent: DrakX/vivelinuxabaszindozs",
"", "");
#- skip until empty line
my $now = 0;
my ($last, $buf, $tmp);
my $read = sub { sysread($sock, $buf, 1) or die ''; $tmp .= $buf };
do {
$last = $now;
&$read; &$read if $buf =~ /\015/;
$now = $buf =~ /\012/;
} until $now && $last;
if ($tmp =~ /^(.*\b(\d+)\b.*)/ && $2 == 200) {
my ($size) = $tmp =~ /^Content-Length:\s*(\d+)\015?$/m;
$size, $sock;
} else {
log::l("HTTP error: $1");
undef;
}
}
1;
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