#!/usr/local/bin/perl -w
#
# This script was written for [Ovid] to update his homenode with the
# latest statistics from SETI@Home. It is easily adapted to other
# tasks where a user wants to automate updating information on their
# homenode.
#
# To use, first BACKUP YOUR HOMENODE (mark'n'copy, then save it in a
# text file, in case something happens). Insert a pair of tags where
+
# you want the text to be inserted in your homenode. The tag pair is
# <!--StartTag--><!--EndTag-->. When the script runs, it searchs for
# this tag pair, and replaces anything between them with the new text
+.
#
# If the tags don't exist, it will create them at the top of the page
+,
# and (hopefully) not wreck any existing text.
#
# To run the script, it's: setiupdate -u username -p password [-s] [-
+v]
#
# -s tells the script to set the significant update check box. (Note
# that for some reason, either the PM HTML, or the HTML::Form module,
# a warning is generated. It won't go away. If you fix it, let me
# know).
#
# -v says be a little more verbose, and tell me what each stage of th
+e
# process is. Not recommended for cron jobs.
#
# To use this for non-SETI@Home stuff, just cut out the SETI related
# code, and insert your own. As world-class Perl programmers who spe
+nd
# 1/2 their life at www.perlmonks.org, this should be trivial.
#
# As usual, any bugs(!) should be report to me, please. Any complain
+ts
# to /dev/null, or /msg merlyn, and he'll re-write this thing in 10
# lines, point out the security holes, then write it up in the Web
# Techniques column (just kidding, dude!)
#
use strict;
use Carp;
use LWP::UserAgent;
use LWP::Simple;
use HTTP::Cookies;
use URI::Escape;
use Getopt::Std;
use HTML::Form;
use vars qw($def_username $def_password $def_supdate $def_verbose);
use vars qw($pmsite $setisite);
use vars qw($globalCookieJar $globalUserAgent);
$def_username = '';
$def_password = '';
$def_supdate = 0;
$def_verbose = 0;
$pmsite = 'http://www.perlmonks.org/index.pl';
$setisite = 'http://setiathome.ssl.berkeley.edu/cgi-bin/cgi?cmd=te
+am_show&id=86606';
#
#
#
{
my %args = ();
getopts ('?hu:p:Psv', \%args);
if ($args{'?'} || $args{h} || !scalar keys %args)
{
usage ();
exit;
}
if ($args {P})
{
local $| = 1;
print "Password: ";
$args {p} = <STDIN>;
chomp ($args{p});
}
my $username = $args {u} || $def_username;
my $password = $args {p} || $def_password;
my $supdate = $args {s} || $def_supdate;
my $verbose = $args {v} || $def_verbose;
$username or die "No username. Program terminated.\n";
$password or die "No password. Program terminated.\n";
#
# Need these globally, so instantiate one of each
#
$globalCookieJar = HTTP::Cookies->new;
$globalUserAgent = LWP::UserAgent->new;
print "\n", scalar localtime, " - Retrieving SETI statistics...\n"
+if $verbose;
my $setistats = do_get_seti_stats () || die "Eeek! Can't get the SE
+TI stats page\n";
print scalar localtime, " - Logging into www.perlmonks.org...\n" if
+ $verbose;
login ($username, $password) or die "Eeek! Can't login into perlmon
+ks? Wrong username or password?\n";
print scalar localtime, " - Loading update homenode page...\n" if $
+verbose;
my $uri = common_HTTP_request ("displaytype=edit&node=$username&typ
+e=user");
print scalar localtime, " - Updating homenode page...\n" if $verbos
+e;
do_update_homenode ($setistats, $supdate, $uri);
print scalar localtime, " - Update complete...\n\n" if $verbose;
}
#
#
#
sub do_get_seti_stats
{
@_ == 0 or croak "Incorrect number of parameters";
$LWP::Simple::FULL_LWP = 1;
my $page = get ($setisite);
return unless ($page);
$page =~ s/.*?(<table )/$1/s;
return $page;
}
#
#
#
sub do_update_homenode
{
@_ == 3 or croak "Incorrect number of parameters";
my ($newtext, $significantupdate, $uri) = @_;
my $content = $uri->content;
my @forms = HTML::Form->parse ($content, $uri->base);
foreach my $form (@forms)
{
if ($form->find_input ('displaytype', 'hidden'))
{
my $currentPage = $form->value ('user_doctext');
if ($currentPage !~ /(<!--StartTag-->)(?:.*?)(<!--EndTag-->)/
+si)
{
$currentPage = "<!--StartTag-->\n$newtext\n<!--EndTag-->\n
+$currentPage";
}
else
{
$currentPage =~ s/(<!--StartTag-->)(?:.*?)(<!--EndTag-->)/
+$1\n$newtext\n$2/si;
}
$form->value ('user_doctext', $currentPage);
$form->value ('significantupdate', 'on') if $significantupdat
+e;
my $res = $globalUserAgent->request ($form->click);
die sprintf ("Eeek! Request failed (%s)\n", $res->status_line
+) unless ($res->is_success);
return;
}
}
die "Eeek! Can't find the form (is this the right page?)\n";
}
#
# Log the user in, and extract his cookies.
#
sub login
{
@_ == 2 or croak "Incorrect number of parameters";
my ($username, $password) = @_;
my $req = HTTP::Request->new (POST => $pmsite);
$req->content_type ('application/x-www-form-urlencoded');
$req->content ("user=$username&passwd=$password&op=login");
my $res = $globalUserAgent->request ($req);
die sprintf ("Eeek! Request failed (%s)\n", $res->status_line) if !
+$res->is_success;
$globalCookieJar->extract_cookies ($res);
$globalUserAgent->cookie_jar ($globalCookieJar);
return (($globalCookieJar->as_string () =~ m/userpass/i ? $res : un
+def));
}
#
#
#
sub common_HTTP_request
{
@_ == 1 or croak "Incorrect number of parameters";
my $contentdata = shift;
my $req = HTTP::Request->new (POST => $pmsite);
$req->content_type ('application/x-www-form-urlencoded');
$req->content ($contentdata);
$globalCookieJar->add_cookie_header ($req);
my $res = $globalUserAgent->request ($req);
return $res if ($res->is_success);
die sprintf ("Eeek! Request failed (%s)\n", $res->status_line);
}
#
#
#
sub usage
{
print <<'ENDOFHELP';
usage: setiupdate.pl [-h | -?] [-u username] [-p password] [-P] [-s] [
+-v]
Update a tagged space in a homenode with SETI@Home statistics
-? this help list
-h this help list
-u username user name on Perlmonks.org
-p password password for user
-P forces interactive prompt for password.
-s sets significant update checkbox
-v be verbose about what's going on
-P overrides -p or script defaults.
The script can be edited to set defaults for username and password.
ENDOFHELP
}
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