#!/usr/bin/perl -w
#
-# webcollage, Copyright (c) 1999-2002 by Jamie Zawinski <jwz@jwz.org>
+# webcollage, Copyright (c) 1999-2005 by Jamie Zawinski <jwz@jwz.org>
# This program decorates the screen with random images from the web.
# One satisfied customer described it as "a nonstop pop culture brainbath."
#
# To run this as a display mode with xscreensaver, add this to `programs':
#
-# default-n: webcollage -root \n\
-# default-n: webcollage -root -filter 'vidwhacker -stdin -stdout' \n\
-
-
+# webcollage -root
+# webcollage -root -filter 'vidwhacker -stdin -stdout'
+#
+#
+# You can see this in action at http://www.jwz.org/webcollage/ --
+# it auto-reloads about once a minute. To make a page similar to
+# that on your own system, do this:
+#
+# webcollage -size '800x600' -imagemap $HOME/www/webcollage/index
+#
+#
# If you have the "driftnet" program installed, webcollage can display a
# collage of images sniffed off your local ethernet, instead of pulled out
# of search engines: in that way, your screensaver can display the images
# Driftnet is available here: http://www.ex-parrot.com/~chris/driftnet/
# Use it like so:
#
-# default-n: webcollage -root -driftnet \n\
+# webcollage -root -driftnet
#
# Driftnet is the Unix implementation of the MacOS "EtherPEG" program.
my $progname = $0; $progname =~ s@.*/@@g;
-my $version = q{ $Revision: 1.102 $ }; $version =~ s/^[^0-9]+([0-9.]+).*$/$1/;
-my $copyright = "WebCollage $version, Copyright (c) 1999-2002" .
+my $version = q{ $Revision: 1.123 $ }; $version =~ s/^[^0-9]+([0-9.]+).*$/$1/;
+my $copyright = "WebCollage $version, Copyright (c) 1999-2005" .
" Jamie Zawinski <jwz\@jwz.org>\n" .
- " http://www.jwz.org/xscreensaver/\n";
+ " http://www.jwz.org/webcollage/\n";
-my @search_methods = ( 77, "altavista", \&pick_from_alta_vista_random_link,
- 12, "yahoorand", \&pick_from_yahoo_random_link,
- 9, "lycos", \&pick_from_lycos_text,
- 2, "yahoonews", \&pick_from_yahoo_news_text,
+my @search_methods = ( 60, "altavista", \&pick_from_alta_vista_random_link,
+ 12, "livejournal", \&pick_from_livejournal_images,
+ 8, "yahoorand", \&pick_from_yahoo_random_link,
+ 11, "googlephotos", \&pick_from_google_image_photos,
+ 6, "googleimgs", \&pick_from_google_images,
+ 3, "googlenums", \&pick_from_google_image_numbers,
- # Alta Vista has a new "random link" URL now.
+ # In Apr 2002, Google asked me to stop searching them.
+ # I asked them to add a "random link" url. They said
+ # "that would be easy, we'll think about it" and then
+ # never wrote back. Booo Google! Booooo! So, screw
+ # those turkeys, I've turned Google searching back on.
+ # I'm sure they can take it. (Jan 2005.)
+
+ # Jan 2005: Yahoo fucked up their search form so that
+ # it's no longer possible to do "or" searches on news
+ # images, so we rarely get any hits there any more.
+ #
+ # 0, "yahoonews", \&pick_from_yahoo_news_text,
+
+ # Dec 2004: the ircimages guy's server can't take the
+ # heat, so he started banning the webcollage user agent.
+ # I tried to convince him to add a lighter-weight page to
+ # support webcollage better, but he doesn't care.
+ #
+ # 0, "ircimages", \&pick_from_ircimages,
+
+ # Dec 2002: Alta Vista has a new "random link" URL now.
# They added it specifically to better support webcollage!
# That was super cool of them. This is how we used to do
# it, before:
# 0, "avimages", \&pick_from_alta_vista_images,
# 0, "avtext", \&pick_from_alta_vista_text,
- # Google asked (nicely) for me to stop searching them.
- # I asked them to add a "random link" url. They said
- # "that would be easy, we'll think about it" and then
- # never wrote back. Booo Google! Booooo!
+ # This broke in 2004. Eh, Lycos sucks anyway.
#
- # 0, "googlenums", \&pick_from_google_image_numbers,
- # 0, "googleimgs", \&pick_from_google_images,
+ # 0, "lycos", \&pick_from_lycos_text,
- # I suspect Hotbot is actually the same search engine
- # data as Lycos.
+ # This broke in 2003, I think. I suspect Hotbot is
+ # actually the same search engine data as Lycos.
#
# 0, "hotbot", \&pick_from_hotbot_text,
);
# programs we can use to write to the root window (tried in ascending order.)
#
my @root_displayers = (
+ "xscreensaver-getimage -root -file",
"chbg -once -xscreensaver -max_size 100",
"xv -root -quit -viewonly +noresetroot -quick24 -rmode 5" .
" -rfg black -rbg black",
"www.nytimes.com" => 'NYT-S=18cHMIlJOn2Y1bu5xvEG3Ufuk6E1oJ.' .
'FMxWaQV0igaB5Yi/Q/guDnLeoL.pe7i1oakSb' .
'/VqfdUdb2Uo27Vzt1jmPn3cpYRlTw9',
+
+ "ircimages.com" => 'disclaimer=1',
);
"www.geocities.com" => 1,
"www.angelfire.com" => 1,
"members.aol.com" => 1,
+ "img.photobucket.com" => 1,
+ "pics.livejournal.com" => 1,
+ "tinypic.com" => 1,
"yimg.com" => 1, # This is where dailynews.yahoo.com stores
"eimg.com" => 1, # its images, so pick_from_yahoo_news_text()
# hits this every time.
+ "images.quizfarm.com" => 1, # damn those LJ quizzes...
+ "images.quizilla.com" => 1,
+ "images.quizdiva.net" => 1,
+
"driftnet" => 1, # builtin...
);
my $report_performance_interval = 60 * 15; # print some stats every 15 minutes
my $http_proxy = undef;
-my $http_timeout = 30;
+my $http_timeout = 20;
my $cvt_timeout = 10;
my $min_width = 50;
my $no_output_p = 0;
my $urls_only_p = 0;
+my $imagemap_base = undef;
my @pids_to_kill = (); # forked pids we should kill when we exit, if any.
my ($url_proto, $dummy, $serverstring, $path) = split(/\//, $url, 4);
$path = "" unless $path;
+ if (!$url_proto || !$serverstring) {
+ LOG (($verbose_net || $verbose_load), "unparsable URL: $url");
+ return ();
+ }
+
my ($them,$port) = split(/:/, $serverstring);
$port = 80 unless $port;
my $port2 = $port;
if ($http_proxy) {
$serverstring = $http_proxy if $http_proxy;
+ $serverstring =~ s@^[a-z]+://@@;
($them2,$port2) = split(/:/, $serverstring);
$port2 = 80 unless $port2;
}
my $user_agent = "$progname/$version";
- if ($url =~ m@^http://www\.altavista\.com/@) {
+ if ($url =~ m@^http://www\.altavista\.com/@ ||
+ $url =~ m@^http://random\.yahoo\.com/@ ||
+ $url =~ m@^http://images\.google\.com/@) {
# block this, you turkeys.
- $user_agent = "Mozilla/4.76 [en] (X11; U; Linux 2.2.16-22 i686; Nav)";
+ $user_agent = "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5)" .
+ " Gecko/20041111 Firefox/1.0";
}
my $hdrs = "GET " . ($http_proxy ? $url : "/$path") . " HTTP/1.0\r\n" .
print S $hdrs;
my $http = <S> || "";
+ # Kludge: the Yahoo Random Link is now returning as its first
+ # line "Status: 301" instead of "HTTP/1.0 301 Found". Fix it...
+ #
+ $http =~ s@^Status:\s+(\d+)\b@HTTP/1.0 $1@i;
+
$_ = $http;
s/[\r\n]+$//s;
LOG ($verbose_http, " <== $_");
return ();
}
+ $SIG{ALRM} = 'DEFAULT'; # seem to be suffering a race?
return ( $http, $head, $body );
};
die if ($@ && $@ ne "alarm\n"); # propagate errors
+
+ if ($@ && $@ ne "alarm\n") {
+ print STDERR blurb() . "DIE " . join(" ", $@) . "\n";
+ die;
+ }
+
if ($@) {
# timed out
$head = undef;
if ( $http =~ m@^HTTP/[0-9.]+ 30[123]@ ) {
$_ = $head;
+
my ( $location ) = m@^location:[ \t]*(.*)$@im;
if ( $location ) {
$location =~ s/[\r\n]$//;
# randomly from the set of images on the web. All the logic here for
# rejecting some images is really a set of heuristics for rejecting
# images that are not really images: for rejecting *text* that is in
- # GIF/JPEG form. I don't want text, I want pictures, and I want the
- # content of the pictures to be randomly selected from among all the
- # available content.
+ # GIF/JPEG/PNG form. I don't want text, I want pictures, and I want
+ # the content of the pictures to be randomly selected from among all
+ # the available content.
#
# So, filtering out "dirty" pictures by looking for "dirty" keywords
# would be wrong: dirty pictures exist, like it or not, so webcollage
} elsif ( m/^(img|a) .*(src|href) ?= ?\"? ?(.*?)[ >\"]/io ) {
- my $was_inline = ( "$1" eq "a" || "$1" eq "A" );
+ my $was_inline = (! ( "$1" eq "a" || "$1" eq "A" ));
my $link = $3;
my ( $width ) = m/width ?=[ \"]*(\d+)/oi;
my ( $height ) = m/height ?=[ \"]*(\d+)/oi;
}
# skip non-image
- if ( ! m@[.](gif|jpg|jpeg|pjpg|pjpeg)$@io ) {
+ if ( ! m@[.](gif|jpg|jpeg|pjpg|pjpeg|png)$@io ) {
next;
}
next;
}
+ # skip images with a URL that indicates a Yahoo thumbnail.
+ if (m@\.yimg\.com/.*/t/@) {
+ if (!$width) { $width = "?"; }
+ if (!$height) { $height = "?"; }
+ LOG ($verbose_filter, " skip yahoo thumb $_ (${width}x$height)");
+ next;
+ }
my $url = $_;
$urls[++$#urls] = $url;
$unique_urls{$url}++;
- # jpegs are preferable to gifs.
+ # JPEGs are preferable to GIFs and PNGs.
$_ = $url;
- if ( ! m@[.]gif$@io ) {
+ if ( ! m@[.](gif|png)$@io ) {
$urls[++$#urls] = $url;
}
# returns a random word from the dictionary
#
sub random_word {
- my $word = 0;
- if (open (IN, "<$wordlist")) {
- my $size = (stat(IN))[7];
- my $pos = rand $size;
- if (seek (IN, $pos, 0)) {
- $word = <IN>; # toss partial line
- $word = <IN>; # keep next line
- }
- if (!$word) {
- seek( IN, 0, 0 );
- $word = <IN>;
- }
- close (IN);
- }
- return 0 if (!$word);
+ local *IN;
+ if (! open (IN, "<$wordlist")) {
+ return undef;
+ }
- $word =~ s/^[ \t\n\r]+//;
- $word =~ s/[ \t\n\r]+$//;
- $word =~ s/ys$/y/;
- $word =~ s/ally$//;
- $word =~ s/ly$//;
- $word =~ s/ies$/y/;
- $word =~ s/ally$/al/;
- $word =~ s/izes$/ize/;
- $word =~ tr/A-Z/a-z/;
+ my $size = (stat(IN))[7];
+ my $word = undef;
+ my $count = 0;
+
+ while (1) {
+ error ("looping ($count) while reading $wordlist")
+ if (++$count > 100);
- if ( $word =~ s/[ \t\n\r]/\+/g ) { # convert intra-word spaces to "+".
- $word = "\%22$word\%22"; # And put quotes (%22) around it.
+ my $pos = int (rand ($size));
+ if (seek (IN, $pos, 0)) {
+ $word = <IN>; # toss partial line
+ $word = <IN>; # keep next line
}
- return $word;
+ next unless ($word);
+ next if ($word =~ m/^[-\']/);
+
+ $word = lc($word);
+ $word =~ s/^.*-//s;
+ $word =~ s/^[^a-z]+//s;
+ $word =~ s/[^a-z]+$//s;
+ $word =~ s/\'s$//s;
+ $word =~ s/ys$/y/s;
+ $word =~ s/ally$//s;
+ $word =~ s/ly$//s;
+ $word =~ s/ies$/y/s;
+ $word =~ s/ally$/al/s;
+ $word =~ s/izes$/ize/s;
+ $word =~ s/esses$/ess/s;
+ $word =~ s/(.{5})ing$/$1/s;
+
+ next if (length ($word) > 14);
+ last if ($word);
+ }
+
+ close (IN);
+
+ if ( $word =~ s/\s/\+/gs ) { # convert intra-word spaces to "+".
+ $word = "\%22$word\%22"; # And put quotes (%22) around it.
+ }
+
+ return $word;
}
+
sub random_words {
my ($or_p) = @_;
my $sep = ($or_p ? "%20OR%20" : "%20");
return $s;
}
+sub html_quote {
+ my ($s) = @_;
+ $s =~ s/&/&/gi;
+ $s =~ s/</</gi;
+ $s =~ s/>/>/gi;
+ $s =~ s/\"/"/gi;
+ return $s;
+}
+
+sub html_unquote {
+ my ($s) = @_;
+ $s =~ s/</</gi; # far from exhaustive...
+ $s =~ s/>/</gi;
+ $s =~ s/"/\"/gi;
+ $s =~ s/&/&/gi;
+ return $s;
+}
+
# Loads the given URL (a search on some search engine) and returns:
# - the total number of hits the search engine claimed it had;
# given a list of URLs, picks one at random; loads it; and returns a
# random image from it.
-# returns the url of the page loaded; the url of the image chosen;
-# and a debugging description string.
+# returns the url of the page loaded; the url of the image chosen.
#
sub pick_image_from_pages {
my ($base, $total_hit_count, $unfiltered_link_count, $timeout, @pages) = @_;
############################################################################
# yahoorand
-my $yahoo_random_link = "http://random.yahoo.com/bin/ryl";
+my $yahoo_random_link = "http://random.yahoo.com/fast/ryl";
# Picks a random page; picks a random image on that page;
sub pick_from_alta_vista_images {
my ( $timeout ) = @_;
- my $words = random_words(0);
+ my $words = random_word();
my $page = (int(rand(9)) + 1);
my $search_url = $alta_vista_images_url . $words;
my @candidates = ();
foreach my $u (@subpages) {
- # avtext is encoding their URLs now.
- next unless ($u =~ m@^/r.*\&r=([^&]+).*@);
- $u = url_unquote($1);
+ # avimages is encoding their URLs now.
+ next unless ($u =~ s/^.*\*\*(http%3a.*$)/$1/gsi);
+ $u = url_unquote($u);
next unless ($u =~ m@^http://@i); # skip non-HTTP or relative URLs
next if ($u =~ m@[/.]altavista\.com\b@i); # skip altavista builtins
+ next if ($u =~ m@[/.]yahoo\.com\b@i); # yahoo and av in cahoots?
next if ($u =~ m@[/.]doubleclick\.net\b@i); # you cretins
next if ($u =~ m@[/.]clicktomarket\.com\b@i); # more cretins
# googleimgs
sub pick_from_google_images {
- my ( $timeout ) = @_;
+ my ( $timeout, $words, $max_page ) = @_;
+
+ if (!defined($words)) {
+ $words = random_word; # only one word for Google
+ }
- my $words = random_word; # only one word for Google
my $page = (int(rand(9)) + 1);
my $num = 20; # 20 images per page
my $search_url = $google_images_url . $words;
pick_from_search_engine ($timeout, $search_url, $words);
my @candidates = ();
+ my %referers;
foreach my $u (@subpages) {
next unless ($u =~ m@imgres\?imgurl@i); # All pics start with this
next if ($u =~ m@[/.]google\.com\b@i); # skip google builtins
if ($u =~ m@^/imgres\?imgurl=(.*?)\&imgrefurl=(.*?)\&@) {
- my $urlf = $2;
- LOG ($verbose_filter, " candidate: $urlf");
- push @candidates, $urlf;
+ my $ref = $2;
+ my $img = $1;
+ $img = "http://$img" unless ($img =~ m/^http:/i);
+
+ LOG ($verbose_filter, " candidate: $ref");
+ push @candidates, $img;
+ $referers{$img} = $ref;
}
}
- return pick_image_from_pages ($search_url, $search_hit_count, $#subpages+1,
- $timeout, @candidates);
+ @candidates = depoison (@candidates);
+ return () if ($#candidates < 0);
+ my $i = int(rand($#candidates+1));
+ my $img = $candidates[$i];
+ my $ref = $referers{$img};
+
+ LOG ($verbose_load, "picked image " . ($i+1) . ": $img (on $ref)");
+ return ($ref, $img);
}
\f
############################################################################
#
-# Pick images by feeding random *numbers* into Google Image Search.
-# By jwz, suggested by from Ian O'Donnell.
+# Pick images by feeding random numbers into Google Image Search.
+# By jwz, suggested by Ian O'Donnell.
#
############################################################################
$number = sprintf("%04d", $number)
if (rand() < 0.3);
- my $words = "$number";
- my $page = (int(rand(40)) + 1);
- my $num = 20; # 20 images per page
- my $search_url = $google_images_url . $words;
-
- if ($page > 1) {
- $search_url .= "&start=" . $page*$num; # page number
- $search_url .= "&num=" . $num; #images per page
- }
-
- my ($search_hit_count, @subpages) =
- pick_from_search_engine ($timeout, $search_url, $words);
+ pick_from_google_images ($timeout, "$number");
+}
- my @candidates = ();
- my %referers;
- foreach my $u (@subpages) {
- next unless ($u =~ m@imgres\?imgurl@i); # All pics start with this
- next if ($u =~ m@[/.]google\.com\b@i); # skip google builtins
- if ($u =~ m@^/imgres\?imgurl=(.*?)\&imgrefurl=(.*?)\&@) {
- my $ref = $2;
- my $img = "http://$1";
+\f
+############################################################################
+#
+# Pick images by feeding random digital camera file names into
+# Google Image Search.
+# By jwz, inspired by the excellent Random Personal Picture Finder
+# at http://www.diddly.com/random/
+#
+############################################################################
- LOG ($verbose_filter, " candidate: $ref");
- push @candidates, $img;
- $referers{$img} = $ref;
- }
- }
+my @photomakers = (
+ #
+ # Common digital camera file name formats, as described at
+ # http://www.diddly.com/random/about.html
+ #
+ sub { sprintf ("dcp%05d.jpg", int(rand(4000))); }, # Kodak
+ sub { sprintf ("dsc%05d.jpg", int(rand(4000))); }, # Nikon
+ sub { sprintf ("dscn%04d.jpg", int(rand(4000))); }, # Nikon
+ sub { sprintf ("mvc-%03d.jpg", int(rand(999))); }, # Sony Mavica
+ sub { sprintf ("mvc%05d.jpg", int(rand(9999))); }, # Sony Mavica
+ sub { sprintf ("P101%04d.jpg", int(rand(9999))); }, # Olympus w/ date=101
+ sub { sprintf ("P%x%02d%04d.jpg", # Olympus
+ int(rand(0xC)), int(rand(30))+1,
+ rand(9999)); },
+ sub { sprintf ("IMG_%03d.jpg", int(rand(999))); }, # ?
+ sub { sprintf ("IMAG%04d.jpg", int(rand(9999))); }, # RCA and Samsung
+ sub { my $n = int(rand(9999)); # Canon
+ sprintf ("1%02d-%04d.jpg", int($n/100), $n); },
+ sub { my $n = int(rand(9999)); # Canon
+ sprintf ("1%02d-%04d_IMG.jpg",
+ int($n/100), $n); },
+ sub { sprintf ("IMG_%04d.jpg", int(rand(9999))); }, # Canon
+ sub { sprintf ("dscf%04d.jpg", int(rand(9999))); }, # Fuji Finepix
+ sub { sprintf ("pdrm%04d.jpg", int(rand(9999))); }, # Toshiba PDR
+ sub { sprintf ("IM%06d.jpg", int(rand(9999))); }, # HP Photosmart
+ sub { sprintf ("EX%06d.jpg", int(rand(9999))); }, # HP Photosmart
+# sub { my $n = int(rand(3)); # Kodak DC-40,50,120
+# sprintf ("DC%04d%s.jpg", int(rand(9999)),
+# $n == 0 ? 'S' : $n == 1 ? 'M' : 'L'); },
+ sub { sprintf ("pict%04d.jpg", int(rand(9999))); }, # Minolta Dimage
+ sub { sprintf ("P%07d.jpg", int(rand(9999))); }, # Kodak DC290
+# sub { sprintf ("%02d%02d%04d.jpg", # Casio QV3000, QV4000
+# int(rand(12))+1, int(rand(31))+1,
+# int(rand(999))); },
+# sub { sprintf ("%02d%x%02d%04d.jpg", # Casio QV7000
+# int(rand(6)), # year
+# int(rand(12))+1, int(rand(31))+1,
+# int(rand(999))); },
+ sub { sprintf ("IMGP%04d.jpg", int(rand(9999))); }, # Pentax Optio S
+ sub { sprintf ("PANA%04d.jpg", int(rand(9999))); }, # Panasonic vid still
+ sub { sprintf ("HPIM%04d.jpg", int(rand(9999))); }, # HP Photosmart
+ sub { sprintf ("PCDV%04d.jpg", int(rand(9999))); }, # ?
+ );
+
+
+# googlephotos
+sub pick_from_google_image_photos {
+ my ( $timeout ) = @_;
- @candidates = depoison (@candidates);
- return () if ($#candidates < 0);
- my $i = int(rand($#candidates+1));
- my $img = $candidates[$i];
- my $ref = $referers{$img};
+ my $i = int(rand($#photomakers + 1));
+ my $fn = $photomakers[$i];
+ my $file = &$fn;
+ my $words .= $file . "%20filetype:jpg";
- LOG ($verbose_load, "picked image " . ($i+1) . ": $img (on $ref)");
- return ($ref, $img);
+ pick_from_google_images ($timeout, $words);
}
# onMouseOver to make it look like they're not! Well, it makes it
# easier for us to identify search results...
#
- next unless ($u =~ m@^/r.*\&r=([^&]+).*@);
- $u = url_unquote($1);
+ next unless ($u =~ s/^.*\*\*(http%3a.*$)/$1/gsi);
+ $u = url_unquote($u);
+
+ next unless ($u =~ m@^http://@i); # skip non-HTTP or relative URLs
+ next if ($u =~ m@[/.]altavista\.com\b@i); # skip altavista builtins
+ next if ($u =~ m@[/.]yahoo\.com\b@i); # yahoo and av in cahoots?
LOG ($verbose_filter, " candidate: $u");
push @candidates, $u;
sub pick_from_hotbot_text {
my ( $timeout ) = @_;
+ $last_search = $hotbot_search_url; # for warnings
+
# lycos seems to always give us back dictionaries and word lists if
# we search for more than one word...
#
foreach my $u (@subpages) {
# Hotbot plays redirection games too
- next unless ($u =~ m@/director.asp\?.*\btarget=([^&]+)@);
- $u = url_decode($1);
+ # (not any more?)
+# next unless ($u =~ m@/director.asp\?.*\btarget=([^&]+)@);
+# $u = url_decode($1);
+
+ next unless ($u =~ m@^http://@i); # skip non-HTTP or relative URLs
+ next if ($u =~ m@[/.]hotbot\.com\b@i); # skip hotbot builtins
+ next if ($u =~ m@[/.]lycos\.com\b@i); # skip hotbot builtins
+ next if ($u =~ m@[/.]inktomi\.com\b@i); # skip hotbot builtins
LOG ($verbose_filter, " candidate: $u");
push @candidates, $u;
sub pick_from_lycos_text {
my ( $timeout ) = @_;
+ $last_search = $lycos_search_url; # for warnings
+
# lycos seems to always give us back dictionaries and word lists if
# we search for more than one word...
#
foreach my $u (@subpages) {
# Lycos plays redirection games.
- next unless ($u =~ m@^http://click.lycos.com/director.asp
- .*
- \btarget=([^&]+)
- .*
- @x);
- $u = url_decode($1);
+ # (not any more?)
+# next unless ($u =~ m@^http://click.lycos.com/director.asp
+# .*
+# \btarget=([^&]+)
+# .*
+# @x);
+# $u = url_decode($1);
+
+ next unless ($u =~ m@^http://@i); # skip non-HTTP or relative URLs
+ next if ($u =~ m@[/.]hotbot\.com\b@i); # skip lycos builtins
+ next if ($u =~ m@[/.]lycos\.com\b@i); # skip lycos builtins
+ next if ($u =~ m@[/.]terralycos\.com\b@i); # skip lycos builtins
+ next if ($u =~ m@[/.]inktomi\.com\b@i); # skip lycos builtins
+
LOG ($verbose_filter, " candidate: $u");
push @candidates, $u;
#
############################################################################
-my $yahoo_news_url = "http://search.news.yahoo.com/search/news" .
- "?a=1" .
- "&c=news_photos" .
- "&s=-%24s%2C-date" .
- "&n=100" .
- "&o=o" .
- "&2=" .
- "&3=" .
+my $yahoo_news_url = "http://news.search.yahoo.com/search/news" .
+ "?c=news_photos" .
"&p=";
# yahoonews
sub pick_from_yahoo_news_text {
my ( $timeout ) = @_;
- my $words = random_words(0);
+ $last_search = $yahoo_news_url; # for warnings
+
+ my $words = random_word();
my $search_url = $yahoo_news_url . $words;
my ($search_hit_count, @subpages) =
my @candidates = ();
foreach my $u (@subpages) {
+
+ # de-redirectize the URLs
+ $u =~ s@^http://rds\.yahoo\.com/.*-http%3A@http:@s;
+
# only accept URLs on Yahoo's news site
next unless ($u =~ m@^http://dailynews\.yahoo\.com/@i ||
$u =~ m@^http://story\.news\.yahoo\.com/@i);
+ next unless ($u =~ m@&u=/@);
LOG ($verbose_filter, " candidate: $u");
push @candidates, $u;
}
+\f
+############################################################################
+#
+# Pick images from LiveJournal's list of recently-posted images.
+#
+############################################################################
+
+my $livejournal_img_url = "http://www.livejournal.com/stats/latest-img.bml";
+
+# With most of our image sources, we get a random page and then select
+# from the images on it. However, in the case of LiveJournal, the page
+# of images tends to update slowly; so we'll remember the last N entries
+# on it and randomly select from those, to get a wider variety each time.
+
+my $lj_cache_size = 1000;
+my @lj_cache = (); # fifo, for ordering by age
+my %lj_cache = (); # hash, for detecting dups
+
+# livejournal
+sub pick_from_livejournal_images {
+ my ( $timeout ) = @_;
+
+ $last_search = $livejournal_img_url; # for warnings
+
+ my ( $base, $body ) = get_document ($livejournal_img_url, undef, $timeout);
+ return () unless $body;
+
+ $body =~ s/\n/ /gs;
+ $body =~ s/(<recent-image)\b/\n$1/gsi;
+
+ foreach (split (/\n/, $body)) {
+ next unless (m/^<recent-image\b/);
+ next unless (m/\bIMG=[\'\"]([^\'\"]+)[\'\"]/si);
+ my $img = html_unquote ($1);
+
+ next if ($lj_cache{$img}); # already have it
+
+ next unless (m/\bURL=[\'\"]([^\'\"]+)[\'\"]/si);
+ my $page = html_unquote ($1);
+ my @pair = ($img, $page);
+ LOG ($verbose_filter, " candidate: $img");
+ push @lj_cache, \@pair;
+ $lj_cache{$img} = \@pair;
+ }
+
+ return () if ($#lj_cache == -1);
+
+ my $n = $#lj_cache+1;
+ my $i = int(rand($n));
+ my ($img, $page) = @{$lj_cache[$i]};
+
+ # delete this one from @lj_cache and from %lj_cache.
+ #
+ @lj_cache = ( @lj_cache[0 .. $i-1],
+ @lj_cache[$i+1 .. $#lj_cache] );
+ delete $lj_cache{$img};
+
+ # Keep the size of the cache under the limit by nuking older entries
+ #
+ while ($#lj_cache >= $lj_cache_size) {
+ my $pairP = shift @lj_cache;
+ my $img = $pairP->[0];
+ delete $lj_cache{$img};
+ }
+
+ LOG ($verbose_load, "picked image " .($i+1) . "/$n: $img");
+
+ return ($page, $img);
+}
+
+\f
+############################################################################
+#
+# Pick images from ircimages.com (images that have been in the /topic of
+# various IRC channels.)
+#
+############################################################################
+
+my $ircimages_url = "http://ircimages.com/";
+
+# ircimages
+sub pick_from_ircimages {
+ my ( $timeout ) = @_;
+
+ $last_search = $ircimages_url; # for warnings
+
+ my $n = int(rand(2900));
+ my $search_url = $ircimages_url . "page-$n";
+
+ my ( $base, $body ) = get_document ($search_url, undef, $timeout);
+ return () unless $body;
+
+ my @candidates = ();
+
+ $body =~ s/\n/ /gs;
+ $body =~ s/(<A)\b/\n$1/gsi;
+
+ foreach (split (/\n/, $body)) {
+
+ my ($u) = m@<A\s.*\bHREF\s*=\s*([^>]+)>@i;
+ next unless $u;
+
+ if ($u =~ m/^\"([^\"]*)\"/) { $u = $1; } # quoted string
+ elsif ($u =~ m/^([^\s]*)\s/) { $u = $1; } # or token
+
+ next unless ($u =~ m/^http:/i);
+ next if ($u =~ m@^http://(searchirc\.com\|ircimages\.com)@i);
+ next unless ($u =~ m@[.](gif|jpg|jpeg|pjpg|pjpeg|png)$@i);
+
+ LOG ($verbose_http, " HREF: $u");
+ push @candidates, $u;
+ }
+
+ LOG ($verbose_filter, "" . $#candidates+1 . " links on $search_url");
+
+ return () if ($#candidates == -1);
+
+ my $i = int(rand($#candidates+1));
+ my $img = $candidates[$i];
+
+ LOG ($verbose_load, "picked image " .($i+1) . "/" . ($#candidates+1) .
+ ": $img");
+
+ $search_url = $img; # hmm...
+ return ($search_url, $img);
+}
\f
############################################################################
exit 1;
}
+sub stacktrace {
+ my $i = 1;
+ print STDERR "$progname: stack trace:\n";
+ while (1) {
+ my ($package, $filename, $line, $subroutine) = caller($i++);
+ last unless defined($package);
+ $filename =~ s@^.*/@@;
+ print STDERR " $filename#$line, $subroutine\n";
+ }
+}
+
my $lastlog = "";
return ();
}
-# Given the raw body of a GIF or JPEG document, returns the dimensions of
-# the image.
+# Given the raw body of a PNG document, returns the dimensions of the image.
+#
+sub png_size {
+ my ($body) = @_;
+ return () unless ($body =~ m/^\211PNG\r/);
+ my ($bits) = ($body =~ m/^.{12}(.{12})/s);
+ return () unless defined ($bits);
+ return () unless ($bits =~ /^IHDR/);
+ my ($ign, $w, $h) = unpack("a4N2", $bits);
+ return ($w, $h);
+}
+
+
+# Given the raw body of a GIF, JPEG, or PNG document, returns the dimensions
+# of the image.
#
sub image_size {
my ($body) = @_;
my ($w, $h) = gif_size ($body);
if ($w && $h) { return ($w, $h); }
- return jpeg_size ($body);
+ ($w, $h) = jpeg_size ($body);
+ if ($w && $h) { return ($w, $h); }
+ return png_size ($body);
}
}
-sub signal_cleanup {
- my ($sig) = @_;
- print STDERR blurb() . (defined($sig)
- ? "caught signal $sig."
- : "exiting.")
- . "\n"
- if ($verbose_exec);
-
+sub exit_cleanup {
x_cleanup();
-
+ print STDERR "$progname: exiting\n" if ($verbose_warnings);
if (@pids_to_kill) {
print STDERR blurb() . "killing: " . join(' ', @pids_to_kill) . "\n";
kill ('TERM', @pids_to_kill);
}
+}
+sub signal_cleanup {
+ my ($sig) = @_;
+ print STDERR blurb() . (defined($sig)
+ ? "caught signal $sig."
+ : "exiting.")
+ . "\n"
+ if ($verbose_exec || $verbose_warnings);
exit 1;
}
+
+
##############################################################################
#
# Generating a list of urls only
##############################################################################
#
-# Running as an xscreensaver module
+# Running as an xscreensaver module, or as a web page imagemap
#
##############################################################################
-my $image_ppm = ($ENV{TMPDIR} ? $ENV{TMPDIR} : "/tmp") . "/webcollage." . $$;
-my $image_tmp1 = $image_ppm . "-1";
-my $image_tmp2 = $image_ppm . "-2";
+my $image_ppm = sprintf ("%s/webcollage-%08x",
+ ($ENV{TMPDIR} ? $ENV{TMPDIR} : "/tmp"),
+ rand(0xFFFFFFFF));
+my $image_tmp1 = sprintf ("%s/webcollage-1-%08x",
+ ($ENV{TMPDIR} ? $ENV{TMPDIR} : "/tmp"),
+ rand(0xFFFFFFFF));
+my $image_tmp2 = sprintf ("%s/webcollage-2-%08x",
+ ($ENV{TMPDIR} ? $ENV{TMPDIR} : "/tmp"),
+ rand(0xFFFFFFFF));
my $filter_cmd = undef;
my $post_filter_cmd = undef;
my $background = undef;
+my @imagemap_areas = ();
+my $imagemap_html_tmp = undef;
+my $imagemap_jpg_tmp = undef;
+
+
my $img_width; # size of the image being generated.
my $img_height;
sub x_cleanup {
unlink $image_ppm, $image_tmp1, $image_tmp2;
+ unlink $imagemap_html_tmp, $imagemap_jpg_tmp
+ if (defined ($imagemap_html_tmp));
}
}
-# Given the URL of a GIF or JPEG image, and the body of that image, writes a
-# PPM to the given output file. Returns the width/height of the image if
-# successful.
+# Given the URL of a GIF, JPEG, or PNG image, and the body of that image,
+# writes a PPM to the given output file. Returns the width/height of the
+# image if successful.
#
sub image_to_pnm {
my ($url, $body, $output) = @_;
} elsif ((@_ = jpeg_size ($body))) {
($w, $h) = @_;
$cmd = "djpeg";
+ } elsif ((@_ = png_size ($body))) {
+ ($w, $h) = @_;
+ $cmd = "pngtopnm";
} else {
LOG (($verbose_pbm || $verbose_load),
- "not a GIF or JPG" .
+ "not a GIF, JPG, or PNG" .
(($body =~ m@<(base|html|head|body|script|table|a href)>@i)
? " (looks like HTML)" : "") .
": $url");
sub x_or_pbm_output {
+ my ($window_id) = @_;
# Check for our helper program, to see whether we need to use PPM pipelines.
#
if (!defined($webcollage_helper)) {
# Only need these others if we don't have the helper.
- @progs = (@progs, "giftopnm", "djpeg", "pnmpaste", "pnmscale", "pnmcut");
+ @progs = (@progs,
+ "giftopnm", "pngtopnm", "djpeg",
+ "pnmpaste", "pnmscale", "pnmcut");
}
foreach (@progs) {
#
$ppm_to_root_window_cmd = pick_root_displayer();
+ if (defined ($window_id)) {
+ error ("-window-id only works if xscreensaver-getimage is installed")
+ unless ($ppm_to_root_window_cmd =~ m/^xscreensaver-getimage\b/);
+
+ error ("unparsable window id: $window_id")
+ unless ($window_id =~ m/^\d+$|^0x[\da-f]+$/i);
+ $ppm_to_root_window_cmd =~ s/--?root\b/$window_id/ ||
+ error ("unable to munge displayer: $ppm_to_root_window_cmd");
+ }
+
if (!$img_width || !$img_height) {
- $_ = "xdpyinfo";
- which ($_) || error "$_ not found on \$PATH.";
- $_ = `$_`;
- ($img_width, $img_height) = m/dimensions: *(\d+)x(\d+) /;
- if (!defined($img_height)) {
- error "xdpyinfo failed.";
+
+ if (!defined ($window_id) &&
+ defined ($ENV{XSCREENSAVER_WINDOW})) {
+ $window_id = $ENV{XSCREENSAVER_WINDOW};
+ }
+
+ if (!defined ($window_id)) {
+ $_ = "xdpyinfo";
+ which ($_) || error "$_ not found on \$PATH.";
+ $_ = `$_`;
+ ($img_width, $img_height) = m/dimensions: *(\d+)x(\d+) /;
+ if (!defined($img_height)) {
+ error "xdpyinfo failed.";
+ }
+ } else { # we have a window id
+ $_ = "xwininfo";
+ which ($_) || error "$_ not found on \$PATH.";
+ $_ .= " -id $window_id";
+ $_ = `$_`;
+ ($img_width, $img_height) = m/^\s*Width:\s*(\d+)\n\s*Height:\s*(\d+)\n/m;
+
+ if (!defined($img_height)) {
+ error "xwininfo failed.";
+ }
}
}
($iw, $ih) = @_;
$cmd = "djpeg |";
+ } elsif ((@_ = png_size ($body))) {
+ ($iw, $ih) = @_;
+ $cmd = "pngtopnm |";
+
} elsif ($body =~ m/^P\d\n(\d+) (\d+)\n/) {
$iw = $1;
$ih = $2;
$cmd = "";
} else {
- error "$bgimage is not a GIF, JPEG, or PPM.";
+ error "$bgimage is not a GIF, JPEG, PNG, or PPM.";
}
my $x = int (($img_width - $iw) / 2);
($iw, $ih) = image_size ($body);
if (!$iw || !$ih) {
LOG (($verbose_pbm || $verbose_load),
- "not a GIF or JPG" .
+ "not a GIF, JPG, or PNG" .
(($body =~ m@<(base|html|head|body|script|table|a href)>@i)
? " (looks like HTML)" : "") .
": $img");
return 0 unless ($iw && $ih);
}
- my $target_w = $img_width;
+ my $target_w = $img_width; # max rectangle into which the image must fit
my $target_h = $img_height;
my $cmd = "";
# Usually scale the image to fit on the screen -- but sometimes scale it
- # to fit on half or a quarter of the screen. Note that we don't merely
- # scale it to fit, we instead cut it in half until it fits -- that should
- # give a wider distribution of sizes.
+ # to fit on half or a quarter of the screen. (We do this by reducing the
+ # size of the target rectangle.) Note that the image is not merely scaled
+ # to fit; we instead cut the image in half repeatedly until it fits in the
+ # target rectangle -- that gives a wider distribution of sizes.
#
- if (rand() < 0.3) { $target_w /= 2; $target_h /= 2; $scale /= 2; }
- if (rand() < 0.3) { $target_w /= 2; $target_h /= 2; $scale /= 2; }
+ if (rand() < 0.3) { $target_w /= 2; $target_h /= 2; } # reduce target rect
+ if (rand() < 0.3) { $target_w /= 2; $target_h /= 2; }
if ($iw > $target_w || $ih > $target_h) {
while ($iw > $target_w ||
$ih > $target_h) {
$iw = int($iw / 2);
$ih = int($ih / 2);
+ $scale /= 2;
}
if ($iw <= 10 || $ih <= 10) {
LOG ($verbose_pbm, "scaling to ${iw}x$ih would have been bogus.");
return 0;
}
- LOG ($verbose_pbm, "scaling to ${iw}x$ih");
+ LOG ($verbose_pbm, "scaling to ${iw}x$ih ($scale)");
$cmd .= " | pnmscale -xsize $iw -ysize $ih";
}
# If any cropping needs to happen, add pnmcut.
#
if ($crop_x != 0 || $crop_y != 0 ||
- $crop_w != $iw || $crop_h != $ih) {
+ $crop_w != $iw || $crop_h != $ih) {
$iw = $crop_w;
$ih = $crop_h;
$cmd .= " | pnmcut $crop_x $crop_y $iw $ih";
$source .= "-" . stats_of($source);
print STDOUT "image: ${iw}x${ih} @ $x,$y $base $source\n"
if ($verbose_imgmap);
+ if ($imagemap_base) {
+ update_imagemap ($base, $x, $y, $iw, $ih,
+ $image_ppm, $img_width, $img_height);
+ }
clearlog();
}
+sub update_imagemap {
+ my ($url, $x, $y, $w, $h, $image_ppm, $image_width, $image_height) = @_;
+
+ $current_state = "imagemap";
+
+ my $max_areas = 200;
+
+ $url = html_quote ($url);
+ my $x2 = $x + $w;
+ my $y2 = $y + $h;
+ my $area = "<AREA SHAPE=RECT COORDS=\"$x,$y,$x2,$y2\" HREF=\"$url\">";
+ unshift @imagemap_areas, $area; # put one on the front
+ if ($#imagemap_areas >= $max_areas) {
+ pop @imagemap_areas; # take one off the back.
+ }
+
+ LOG ($verbose_pbm, "area: $x,$y,$x2,$y2 (${w}x$h)");
+
+ my $map_name = $imagemap_base;
+ $map_name =~ s@^.*/@@;
+ $map_name = 'collage' if ($map_name eq '');
+
+ my $imagemap_html = $imagemap_base . ".html";
+ my $imagemap_jpg = $imagemap_base . ".jpg";
+
+ if (!defined ($imagemap_html_tmp)) {
+ $imagemap_html_tmp = $imagemap_html . sprintf (".%08x", rand(0xffffffff));
+ $imagemap_jpg_tmp = $imagemap_jpg . sprintf (".%08x", rand(0xffffffff));
+ }
+
+ # Read the imagemap html file (if any) to get a template.
+ #
+ my $template_html = '';
+ {
+ local *IN;
+ if (open (IN, "<$imagemap_html")) {
+ while (<IN>) { $template_html .= $_; }
+ close IN;
+ LOG ($verbose_pbm, "read template $imagemap_html");
+ }
+
+ if ($template_html =~ m/^\s*$/s) {
+ $template_html = ("<MAP NAME=\"$map_name\"></MAP>\n" .
+ "<IMG SRC=\"$imagemap_base.jpg\"" .
+ " USEMAP=\"$map_name\">\n");
+ LOG ($verbose_pbm, "created dummy template");
+ }
+ }
+
+ # Write the jpg to a tmp file
+ #
+ {
+ my $cmd;
+ if (defined ($webcollage_helper)) {
+ $cmd = "cp -p $image_ppm $imagemap_jpg_tmp";
+ } else {
+ $cmd = "cjpeg < $image_ppm > $imagemap_jpg_tmp";
+ }
+ my $rc = nontrapping_system ($cmd);
+ if ($rc != 0) {
+ error ("imagemap jpeg failed: \"$cmd\"\n");
+ }
+ }
+
+ # Write the html to a tmp file
+ #
+ {
+ my $body = $template_html;
+ my $areas = join ("\n\t", @imagemap_areas);
+ my $map = ("<MAP NAME=\"$map_name\">\n\t$areas\n</MAP>");
+ my $img = ("<IMG SRC=\"$imagemap_base.jpg\" " .
+ "BORDER=0 " .
+ "WIDTH=$image_width HEIGHT=$image_height " .
+ "USEMAP=\"#$map_name\">");
+ $body =~ s@(<MAP\s+NAME=\"[^\"]*\"\s*>).*?(</MAP>)@$map@is;
+ $body =~ s@<IMG\b[^<>]*\bUSEMAP\b[^<>]*>@$img@is;
+
+ # if there are magic webcollage spans in the html, update those too.
+ #
+ {
+ my @st = stat ($imagemap_jpg_tmp);
+ my $date = strftime("%d-%b-%Y %l:%M:%S %p %Z", localtime($st[9]));
+ my $size = int(($st[7] / 1024) + 0.5) . "K";
+ $body =~ s@(<SPAN\s+CLASS=\"webcollage_date\">).*?(</SPAN>)@$1$date$2@si;
+ $body =~ s@(<SPAN\s+CLASS=\"webcollage_size\">).*?(</SPAN>)@$1$size$2@si;
+ }
+
+ local *OUT;
+ open (OUT, ">$imagemap_html_tmp") || error ("$imagemap_html_tmp: $!");
+ print OUT $body || error ("$imagemap_html_tmp: $!");
+ close OUT || error ("$imagemap_html_tmp: $!");
+ LOG ($verbose_pbm, "wrote $imagemap_html_tmp");
+ }
+
+ # Rename the two tmp files to the real files
+ #
+ rename ($imagemap_html_tmp, $imagemap_html) ||
+ error "renaming $imagemap_html_tmp to $imagemap_html";
+ LOG ($verbose_pbm, "wrote $imagemap_html");
+ rename ($imagemap_jpg_tmp, $imagemap_jpg) ||
+ error "renaming $imagemap_jpg_tmp to $imagemap_jpg";
+ LOG ($verbose_pbm, "wrote $imagemap_jpg");
+}
+
+
sub init_signals {
$SIG{HUP} = \&signal_cleanup;
$SIG{PIPE} = 'IGNORE';
}
-END { signal_cleanup(); }
+END { exit_cleanup(); }
sub main {
$load_method = "none";
my $root_p = 0;
+ my $window_id = undef;
# historical suckage: the environment variable name is lower case.
$http_proxy = $ENV{http_proxy} || $ENV{HTTP_PROXY};
$ENV{DISPLAY} = shift @ARGV;
} elsif ($_ eq "-root") {
$root_p = 1;
+ } elsif ($_ eq "-window-id" || $_ eq "--window-id") {
+ $window_id = shift @ARGV;
+ $root_p = 1;
} elsif ($_ eq "-no-output") {
$no_output_p = 1;
} elsif ($_ eq "-urls-only") {
$urls_only_p = 1;
$no_output_p = 1;
+ } elsif ($_ eq "-imagemap") {
+ $imagemap_base = shift @ARGV;
+ $no_output_p = 1;
} elsif ($_ eq "-verbose") {
$verbose++;
} elsif (m/^-v+$/) {
$http_proxy = shift @ARGV;
} elsif ($_ eq "-dictionary" || $_ eq "-dict") {
$dict = shift @ARGV;
+ } elsif ($_ eq "-opacity") {
+ $opacity = shift @ARGV;
+ error ("opacity must be between 0.0 and 1.0")
+ if ($opacity <= 0 || $opacity > 1);
} elsif ($_ eq "-driftnet" || $_ eq "--driftnet") {
@search_methods = ( 100, "driftnet", \&pick_from_driftnet );
if (! ($ARGV[0] =~ m/^-/)) {
} else {
print STDERR "$copyright\nusage: $progname " .
"[-root] [-display dpy] [-verbose] [-debug which]\n" .
- "\t\t [-timeout secs] [-delay secs] [-filter cmd] [-filter2 cmd]\n" .
- "\t\t [-no-output] [-urls-only] [-background color] [-size WxH]\n" .
+ "\t\t [-timeout secs] [-delay secs] [-size WxH]\n" .
+ "\t\t [-no-output] [-urls-only] [-imagemap filename]\n" .
+ "\t\t [-filter cmd] [-filter2 cmd] [-background color]\n" .
"\t\t [-dictionary dictionary-file] [-http-proxy host[:port]]\n" .
"\t\t [-driftnet [driftnet-program-and-args]]\n" .
"\n";
spawn_driftnet ($driftnet_cmd) if ($driftnet_cmd);
if ($urls_only_p) {
- url_only_output;
+ url_only_output ();
} else {
- x_or_pbm_output;
+ x_or_pbm_output ($window_id);
}
}