Here's a small Win32::GUI app I wrote to download headlines from Slashdot every 30 minutes. (If you're wondering why I used Socket.pm instead of LWP::Simple it's because it saved me around 200 megabytes on the compiled version of the script.) -Joe #!c:\\perl\\bin\\perl.exe # Slashdot Headline Grabber for Win32 # by Joe Stewart use Win32::GUI; use Win32::Shell; use Socket; my $count; my %stories; my @keys; my $maxsize = ([400,42]); my $minsize = ([200,42]); my $main = Win32::GUI::Window->new(-name => 'Main', -text => 'Slashdot Headlines', -width => 275, -height => 42, -maxsize => $maxsize, -minsize => $minsize); my $label = new Win32::GUI::Label($main, -text => "Downloading Headlines...", -name => "Url", -width => 350, -height => 42, -left => 40, -notify => 1); my $button_back = new Win32::GUI::Button($main, -text => "<", -name => "Back", -width => 15, -left => 0, -height => 15); my $button_fwd = new Win32::GUI::Button($main, -text => ">", -name => "Fwd", -width => 15, -left => 15, -height => 15); $main->AddButton($button_back); $main->AddButton($button_fwd); $main->AddLabel($label); my $Cycle = $main->AddTimer("Cycle", 10000); my $Reload = $main->AddTimer("Reload", 1800000); $main->Show(); GUI::Update($main); my $inet = inet_aton('www.slashdot.org'); my $proto=getprotobyname('tcp'); &fetch_headlines; $main->Url->Text($stories{$keys[0]}); $Cycle->Interval(10000); Win32::GUI::Dialog(); sub Main_Terminate { -1; } sub Fwd_Click { $count++; $count = 0 if $count == scalar(@keys); $main->Url->Text($stories{$keys[$count]}); $Cycle->Interval(10000); } sub Back_Click { $count--; $count = scalar(@keys) - 1 if $count == -1; $main->Url->Text($stories{$keys[$count]}); $Cycle->Interval(10000); } sub Url_DblClick { my $url = $keys[$count]; Win32::Shell::Execute("open", $url, undef, undef, "SW_SHOWNORMAL"); return 1; } sub fetch_headlines { my @D; socket(S,PF_INET,SOCK_STREAM,$proto) || return 0; if(connect(S,pack "SnA4x8",2,80,$inet)) { select(S); $|=1; print "GET /slashdot.xml HTTP/1.0\n\n"; @D=<S>; select(STDOUT); close(S); } else { return 0 } my ($title, $url); for (@D) { $title = $1 if /\<title\>(.*)\<\/title\>/; $url = $1 if /\<url\>(.*)\<\/url\>/; if (/<\/story>/) { $stories{$url} = $title; push(@keys, $url); $title = ""; $url = ""; } } return 1; } sub Cycle_Timer { &Fwd_Click; return 1; } sub Reload_TImer { &fetch_headlines; $Reload->Interval(1800000); return 1; }
Hmmm, Any hints on how to use this with a firewall proxy situation?
I fooled around with it for a while last night, but couldn't get it working.
The proxy information I have is url.co.jp/proxy.pac
What I tried was:
sub fetch_headlines {
my @D;
$proxy="url.co.jp"; #proxy-name
$port="80"; #proxy-port (seems to work better with 80 than
with 8080)
($sockaddr,$there,$response,$tries) = ("Snc4x8");
$there = pack($sockaddr,2,$port, &getaddress($proxy));
($a, $b, $c, $d) = unpack('C4', $inet);
$proto = (getprotobyname ('tcp'))[2];
if (!socket(S,AF_INET,SOCK_STREAM,$proto)){
&error("$0: Fatal Socket-Error. $!\n");
}
if (!connect(S,$there)){
&error("$0: Fatal proxy-connect-Error. $!\n");
}
select(S);
. . .
This _seems_ to work, but I still get no info returned in the Win32 dialog
box...
Any hints appreciated,
Shawn
Joe Stewart <[EMAIL PROTECTED]> on 2000/05/03 08:55:23
[EMAIL PROTECTED]に返信してください
宛先: [EMAIL PROTECTED]
cc: (bcc: Atlas21 Shawn/OIPQA/Canon Inc/JP)
件名: [perl-win32-gui] Slashdot headline grabber
- [perl-win32-gui] Slashdot headline grabber Joe Stewart