#!/usr/bin/perl -w
-# Copyright © 2005 Jamie Zawinski <jwz@jwz.org>
+# Copyright © 2005, 2006 Jamie Zawinski <jwz@jwz.org>
#
# Permission to use, copy, modify, distribute, and sell this software and its
# documentation for any purpose is hereby granted without fee, provided that
# .xscreensaver file. It may load a file, a URL, run a program, or just
# print the date.
#
+# In a native MacOS build of xscreensaver, this script is included in
+# the Contents/Resources/ directory of each screen saver .bundle that
+# uses it; and in that case, it looks up its resources using
+# /usr/bin/defaults instead.
+#
# Created: 19-Mar-2005.
require 5;
use bytes;
my $progname = $0; $progname =~ s@.*/@@g;
-my $version = q{ $Revision: 1.3 $ }; $version =~ s/^[^0-9]+([0-9.]+).*$/$1/;
+my $version = q{ $Revision: 1.14 $ }; $version =~ s/^[^0-9]+([0-9.]+).*$/$1/;
my $verbose = 0;
my $http_proxy = undef;
my $text_url = '';
my $wrap_columns = undef;
+my $nyarlathotep_p = 0;
# Maps HTML character entities to the corresponding Latin1 characters.
# Convert any HTML entities to Latin1 characters.
#
-sub de_entify {
+sub de_entify($) {
my ($text) = @_;
$text =~ s/(&(\#)?([[:alpha:]\d]+);?)/
{
# Convert any Unicode characters to Latin1 if possible.
# Unconvertable bytes are left alone.
#
-sub de_unicoddle {
+sub de_unicoddle($) {
my ($text) = @_;
foreach my $key (keys (%unicode_latin1_table)) {
my $val = $unicode_latin1_table{$key};
# Reads the prefs we use from ~/.xscreensaver
#
-sub get_prefs {
-
+sub get_x11_prefs() {
my $got_any_p = 0;
local *IN;
my $body = '';
while (<IN>) { $body .= $_; }
close IN;
- $got_any_p = get_prefs_1 ($body);
+ $got_any_p = get_x11_prefs_1 ($body);
} elsif ($verbose > 1) {
print STDERR "$progname: $config_file: $!\n";
}
- if (! $got_any_p) {
+ if (! $got_any_p && defined ($ENV{DISPLAY})) {
# We weren't able to read settings from the .xscreensaver file.
# Fall back to any settings in the X resource database
# (/usr/X11R6/lib/X11/app-defaults/XScreenSaver)
#
print STDERR "$progname: reading X resources\n" if ($verbose > 1);
my $body = `appres XScreenSaver xscreensaver -1`;
- $got_any_p = get_prefs_1 ($body);
+ $got_any_p = get_x11_prefs_1 ($body);
}
if ($verbose > 1) {
}
-sub get_prefs_1 {
+sub get_x11_prefs_1($) {
my ($body) = @_;
my $got_any_p = 0;
}
+sub get_cocoa_prefs($) {
+ my ($id) = @_;
+ my $v;
+
+ print STDERR "$progname: reading Cocoa prefs: \"$id\"\n" if ($verbose > 1);
+
+ $v = get_cocoa_pref_1 ($id, "textMode");
+ $text_mode = $v if defined ($v);
+
+ # The "textMode" pref is set to a number instead of a string because I
+ # can't figure out the black magic to make Cocoa bindings work right.
+ #
+ if ($text_mode eq '0') { $text_mode = 'date'; }
+ elsif ($text_mode eq '1') { $text_mode = 'literal'; }
+ elsif ($text_mode eq '2') { $text_mode = 'file'; }
+ elsif ($text_mode eq '3') { $text_mode = 'url'; }
+
+ $v = get_cocoa_pref_1 ($id, "textLiteral");
+ $text_literal = $v if defined ($v);
+
+ $v = get_cocoa_pref_1 ($id, "textFile");
+ $text_file = $v if defined ($v);
+
+ $v = get_cocoa_pref_1 ($id, "textProgram");
+ $text_program = $v if defined ($v);
+
+ $v = get_cocoa_pref_1 ($id, "textURL");
+ $text_url = $v if defined ($v);
+}
+
+
+sub get_cocoa_pref_1($$) {
+ my ($id, $key) = @_;
+ # make sure there's nothing stupid/malicious in either string.
+ $id =~ s/[^-a-z\d. ]/_/gsi;
+ $key =~ s/[^-a-z\d. ]/_/gsi;
+ my $cmd = "defaults -currentHost read \"$id\" \"$key\"";
+
+ print STDERR "$progname: executing $cmd\n"
+ if ($verbose > 3);
+
+ my $val = `$cmd 2>/dev/null`;
+ $val =~ s/^\s+//s;
+ $val =~ s/\s+$//s;
+
+ print STDERR "$progname: Cocoa: $id $key = \"$val\"\n"
+ if ($verbose > 2);
+
+ $val = undef if ($val =~ m/^$/s);
+
+ return $val;
+}
+
+
# like system() but checks errors.
#
-sub safe_system {
+sub safe_system(@) {
my (@cmd) = @_;
print STDERR "$progname: executing " . join(' ', @cmd) . "\n"
}
-sub which {
+sub which($) {
my ($cmd) = @_;
if ($cmd =~ m@^\./|^/@) {
}
-sub output {
+sub output() {
# Do some basic sanity checking (null text, null file names, etc.)
#
if ($text_mode eq 'literal') {
$text_literal = strftime ($text_literal, localtime);
+ $text_literal =~ y/A-Za-z/N-ZA-Mn-za-m/ if ($nyarlathotep_p);
print STDOUT $text_literal;
print STDOUT "\n" unless ($text_literal =~ m/\n$/s);
} elsif ($text_mode eq 'file') {
+ $text_file =~ s@^~/@$ENV{HOME}/@s; # allow literal "~/"
+
local *IN;
if (open (IN, "<$text_file")) {
print STDERR "$progname: reading $text_file\n" if ($verbose);
reformat_text ($body);
} else {
# stream it
- while (<IN>) { print $_; }
+ while (<IN>) {
+ y/A-Za-z/N-ZA-Mn-za-m/ if ($nyarlathotep_p);
+ print $_;
+ }
}
close IN;
} else {
} elsif ($text_mode eq 'program') {
- $text_program = which ($text_program);
+ my ($prog, $args) = ($text_program =~ m/^([^\s]+)(.*)$/);
+ $text_program = which ($prog) . $args;
print STDERR "$progname: running $text_program\n" if ($verbose);
if ($wrap_columns && $wrap_columns > 0) {
} else { # $text_mode eq 'date'
safe_system ("uname", "-n");
- if (-f "/etc/redhat-release") { system ("cat", "/etc/redhat-release"); }
- safe_system ("uname", "-sr");
+
+ my $unamep = 1;
+
+ if (-f "/etc/redhat-release") { # "Fedora Core release 4 (Stentz)"
+ system ("cat", "/etc/redhat-release");
+ }
+
+ if (-f "/etc/release") { # "Solaris 10 3/05 s10_74L2a X86"
+ safe_system ("head", "-1", "/etc/release");
+ }
+
+ if (-f "/usr/sbin/system_profiler") { # "Mac OS X 10.4.5 (8H14)"
+ my $sp = # "iMac G5"
+ `/usr/sbin/system_profiler SPSoftwareDataType SPHardwareDataType`;
+ my ($v) = ($sp =~ m/^\s*System Version:\s*(.*)$/mi);
+ my ($s) = ($sp =~ m/^\s*CPU Speed:\s*(.*)$/mi);
+ my ($t) = ($sp =~ m/^\s*Machine Name:\s*(.*)$/mi);
+ print "$v\n" if ($v);
+ print "$s $t\n" if ($s && $t);
+ $unamep = !defined ($v);
+ }
+
+ if ($unamep) {
+ safe_system ("uname", "-sr"); # "Linux 2.6.15-1.1831_FC4"
+ }
+
print "\n";
safe_system ("date", "+%c");
print "\n";
my $ut = `uptime`;
- $ut =~ s/^[ \d:]*//;
+ $ut =~ s/^[ \d:]*(am|pm)?//i;
$ut =~ s/,\s*(load)/\n$1/;
print "$ut\n";
}
# Loads the given URL, returns: $http, $head, $body.
#
-sub get_url_1 {
+sub get_url_1($;$) {
my ($url, $referer) = @_;
- if (! ($url =~ m@^http://@i)) {
+ if (! ($url =~ m@^(http|feed)://@i)) {
error ("not an HTTP URL: $url");
}
# Loads the given URL, processes redirects, returns (content-type, body).
#
-sub get_url {
+sub get_url($;$) {
my ($url, $referer) = @_;
print STDERR "$progname: loading $url\n" if ($verbose > 2);
# We don't necessarily take the Content-Type header at face value.
# Returns 'html', 'rss', or 'text';
#
-sub guess_content_type {
+sub guess_content_type($$) {
my ($ct, $body) = @_;
$body =~ s/^(.{512}).*/$1/s; # only look in first half K of file
return 'text';
}
-sub reformat_html {
+sub reformat_html($$) {
my ($body, $rss_p) = @_;
$_ = $body;
s/[ \t]+$//gm; # lose whitespace at end of line again
}
+ y/A-Za-z/N-ZA-Mn-za-m/ if ($nyarlathotep_p);
print STDOUT $_;
}
-sub reformat_rss {
+sub reformat_rss($) {
my ($body) = @_;
$body =~ s/(<(ITEM|ENTRY)\b)/\001\001$1/gsi;
my @items = split (/\001\001/, $body);
+
+ print STDERR "$progname: converting RSS ($#items items)...\n"
+ if ($verbose > 2);
+
shift @items;
# Let's skip forward in the stream by a random amount, so that if
# multi-headed machine), they get different text. (Put the items
# that we take off the front back on the back.)
#
- if ($#items > 10) {
+ if ($#items > 7) {
my $n = int (rand ($#items - 5));
+ print STDERR "$progname: rotating by $n items...\n" if ($verbose > 2);
while ($n-- > 0) {
push @items, (shift @items);
}
}
- my $i = 0;
+ my $i = -1;
foreach (@items) {
+ $i++;
- my ($title, $body1, $body2);
+ my ($title, $body1, $body2, $body3);
- $title = $2 if (m@<(TITLE [^<>\s]*)[^<>]*>\s*(.*?)\s*</\1>@xsi);
- $body1 = $3 if (m@<((DESCRIPTION) [^<>\s]*)[^<>]*>\s*(.*?)\s*</\1>@xsi);
- $body2 = $3 if (m@<((CONTENT) [^<>\s]*)[^<>]*>\s*(.*?)\s*</\1>@xsi);
+ $title = $3 if (m@<((TITLE) [^<>\s]*)[^<>]*>\s*(.*?)\s*</\1>@xsi);
+ $body1 = $3 if (m@<((DESCRIPTION) [^<>\s]*)[^<>]*>\s*(.*?)\s*</\1>@xsi);
+ $body2 = $3 if (m@<((CONTENT) [^<>\s]*)[^<>]*>\s*(.*?)\s*</\1>@xsi);
+ $body3 = $3 if (m@<((SUMMARY) [^<>\s]*)[^<>]*>\s*(.*?)\s*</\1>@xsi);
# If there are both <description> and <content> or <content:encoded>,
# use whichever one contains more text.
#
- if ($body1 && $body2 && length($body2) >= length($body1)) {
+ if ($body3 && length($body3) >= length($body2 || '')) {
+ $body2 = $body3;
+ }
+ if ($body2 && length($body2) >= length($body1 || '')) {
$body1 = $body2;
}
- next unless defined ($body1);
- $title = rss_field_to_html ($title);
- $body1 = rss_field_to_html ($body1);
+ if (! $body1) {
+ if ($title) {
+ print STDERR "$progname: no body in item $i (\"$title\")\n"
+ if ($verbose > 2);
+ } else {
+ print STDERR "$progname: no body or title in item $i\n"
+ if ($verbose > 2);
+ next;
+ }
+ }
+
+ $title = rss_field_to_html ($title || '');
+ $body1 = rss_field_to_html ($body1 || '');
reformat_html ("$title<P>$body1", 1);
print "\n";
}
-sub rss_field_to_html {
+sub rss_field_to_html($) {
my ($body) = @_;
# Assume that if <![CDATA[...]]> is present, everything inside that.
}
-sub reformat_text {
+sub reformat_text($) {
my ($body) = @_;
# only re-wrap if --cols was specified. Otherwise, dump it as is.
$body =~ s/[ \t]+$//gm;
}
+ $body =~ y/A-Za-z/N-ZA-Mn-za-m/ if ($nyarlathotep_p);
print STDOUT $body;
}
-sub get_url_text {
+sub get_url_text($) {
my ($url) = @_;
# historical suckage: the environment variable name is lower case.
print STDERR "$progname: converting HTML...\n" if ($verbose > 2);
reformat_html ($body, 0);
} elsif ($ct eq 'rss') {
- print STDERR "$progname: converting RSS...\n" if ($verbose > 2);
reformat_rss ($body);
} else {
print STDERR "$progname: plain text...\n" if ($verbose > 2);
-sub error {
+sub error($) {
my ($err) = @_;
print STDERR "$progname: $err\n";
exit 1;
}
-sub usage {
+sub usage() {
print STDERR "usage: $progname [ --options ... ]\n" .
("\n" .
" Prints out some text for use by various screensavers,\n" .
exit 1;
}
-sub main {
+sub main() {
my $load_p = 1;
+ my $cocoa_id = undef;
while ($#ARGV >= 0) {
$_ = shift @ARGV;
$text_url = shift @ARGV;
$load_p = 0; }
elsif (m/^--?col(umn)?s?$/) { $wrap_columns = 0 + shift @ARGV; }
+ elsif (m/^--?cocoa$/) { $cocoa_id = shift @ARGV; }
+ elsif (m/^--?nyarlathotep$/) { $nyarlathotep_p++; }
elsif (m/^-./) { usage; }
else { usage; }
}
- get_prefs() if ($load_p);
+ if ($load_p) {
+
+ if (!defined ($cocoa_id)) {
+ # see OSX/XScreenSaverView.m
+ $cocoa_id = $ENV{XSCREENSAVER_CLASSPATH};
+ }
+
+ if (defined ($cocoa_id)) {
+ get_cocoa_prefs($cocoa_id);
+ } else {
+ get_x11_prefs();
+ }
+ }
+
output();
}
-main;
+main();
exit 0;
projects / xscreensaver / blobdiff