diff options
| author | Simon Rettberg | 2024-09-06 14:42:37 +0200 |
|---|---|---|
| committer | Simon Rettberg | 2024-09-06 14:42:37 +0200 |
| commit | badef32037f52f79abc1f1440b786cd71afdf270 (patch) | |
| tree | 412b792d4cab4a7a110db82fcf74fe8a1ac55ec1 /hacks/webcollage | |
| parent | Delete pre-6.00 files (diff) | |
| download | xscreensaver-master.tar.gz xscreensaver-master.tar.xz xscreensaver-master.zip | |
Diffstat (limited to 'hacks/webcollage')
| -rwxr-xr-x | hacks/webcollage | 4049 |
1 files changed, 0 insertions, 4049 deletions
diff --git a/hacks/webcollage b/hacks/webcollage deleted file mode 100755 index 47f86fe..0000000 --- a/hacks/webcollage +++ /dev/null @@ -1,4049 +0,0 @@ -#!/usr/bin/perl -w -# -# webcollage, Copyright © 1999-2019 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." -# -# Permission to use, copy, modify, distribute, and sell this software and its -# documentation for any purpose is hereby granted without fee, provided that -# the above copyright notice appear in all copies and that both that -# copyright notice and this permission notice appear in supporting -# documentation. No representations are made about the suitability of this -# software for any purpose. It is provided "as is" without express or -# implied warranty. - - -# To run this as a display mode with xscreensaver, add this to `programs': -# -# webcollage --root -# webcollage --root --filter 'vidwhacker --stdin --stdout' -# -# -# You can see this in action at https://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 -# -# -# Requires that either the provided "webcollage-helper" program or -# ImageMagick's "convert" be available on $PATH. -# -# -# 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 -# that your co-workers are downloading! -# -# Driftnet is available here: http://www.ex-parrot.com/~chris/driftnet/ -# Use it like so: -# -# webcollage --root --driftnet -# -# Driftnet is the Unix implementation of the MacOS "EtherPEG" program. - - -require 5; -use strict; - -# We can't "use diagnostics" here, because that library malfunctions if -# you signal and catch alarms: it says "Uncaught exception from user code" -# and exits, even though I damned well AM catching it! -#use diagnostics; - - -require Time::Local; -require POSIX; -use Fcntl ':flock'; # import LOCK_* constants -use POSIX qw(strftime); -use LWP::UserAgent; - - -my $progname = $0; $progname =~ s@.*/@@g; -my ($version) = ('$Revision: 1.183 $' =~ m/\s(\d[.\d]+)\s/s); -my $copyright = "WebCollage $version, Copyright (c) 1999-2017" . - " Jamie Zawinski <jwz\@jwz.org>\n" . - " https://www.jwz.org/webcollage/\n"; - - - -my @search_methods = ( - # Google is rate-limiting us now, so this works ok from - # a short-running screen saver, but not as a batch job. - # I haven't found a workaround. - # - 5, "googlephotos", \&pick_from_google_image_photos, - 3, "googleimgs", \&pick_from_google_images, - 3, "googlenums", \&pick_from_google_image_numbers, - - # So let's try Bing instead. No rate limiting yet! - # - 13, "bingphotos", \&pick_from_bing_image_photos, - 11, "bingimgs", \&pick_from_bing_images, - 10, "bingnums", \&pick_from_bing_image_numbers, - - 20, "flickr_recent", \&pick_from_flickr_recent, - 15, "flickr_random", \&pick_from_flickr_random, - 6, "livejournal", \&pick_from_livejournal_images, - - 11, "imgur", \&pick_from_imgur, - - # Tumblr doesn't have an "or" search, so this isn't great. - 3, "tumblr", \&pick_from_tumblr, - - # I ran out of usable access tokens, May 2017 - # 0, "instagram", \&pick_from_instagram, - - # No longer exists, as of Apr 2014 - # 0, "yahoorand", \&pick_from_yahoo_random_link, - - # Twitter destroyed their whole API in 2013. - # 0, "twitpic", \&pick_from_twitpic_images, - # 0, "twitter", \&pick_from_twitter_images, - - # This is a cute way to search for a certain webcams. - # Not included in default methods, since these images - # aren't terribly interesting by themselves. - # See also "SurveillanceSaver". - # - 0, "securitycam", \&pick_from_security_camera, - - # Nonfunctional as of June 2011. - # 0, "altavista", \&pick_from_alta_vista_random_link, - - # 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, - - # This broke in 2004. Eh, Lycos sucks anyway. - # - # 0, "lycos", \&pick_from_lycos_text, - - # 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", - "xli -quiet -onroot -center -border black", - "xloadimage -quiet -onroot -center -border black", - -# this lame program wasn't built with vroot.h: -# "xsri -scale -keep-aspect -center-horizontal -center-vertical", -); - - -# Some sites need cookies to work properly. These are they. -# -my %cookies = ( - "www.altavista.com" => "AV_ALL=1", # request uncensored searches - "web.altavista.com" => "AV_ALL=1", - "ircimages.com" => 'disclaimer=1', -); - - -# If this is set, it's a helper program to use for pasting images together: -# this is somewhat faster than using ImageMagick. -# -my $webcollage_helper = undef; -my $convert_cmd = 'convert'; - -my $opacity = 0.85; # Opacity when pasting images together. - - -# Some sites have managed to poison the search engines. These are they. -# (We auto-detect sites that have poisoned the search engines via excessive -# keywords or dictionary words, but these are ones that slip through -# anyway.) -# -# This can contain full host names, or 2 or 3 component domains. -# -my %poisoners = ( - "die.net" => 1, # 'l33t h4ck3r d00dz. - "genforum.genealogy.com" => 1, # Cluttering avtext with human names. - "rootsweb.com" => 1, # Cluttering avtext with human names. - "akamai.net" => 1, # Lots of sites have their images on Akamai. - "akamaitech.net" => 1, # But those are pretty much all banners. - # Since Akamai is super-expensive, let's - # go out on a limb and assume that all of - # their customers are rich-and-boring. - "bartleby.com" => 1, # Dictionary, cluttering avtext. - "encyclopedia.com" => 1, # Dictionary, cluttering avtext. - "onlinedictionary.datasegment.com" => 1, # Dictionary, cluttering avtext. - "hotlinkpics.com" => 1, # Porn site that has poisoned avimages - # (I don't see how they did it, though!) - "alwayshotels.com" => 1, # Poisoned Lycos pretty heavily. - "nextag.com" => 1, # Poisoned Alta Vista real good. - "ghettodriveby.com" => 1, # Poisoned Google Images. - "crosswordsolver.org" => 1, # Poisoned Google Images. - "xona.com" => 1, # Poisoned Google Images. - "freepatentsonline.com" => 1, # Poisoned Google Images. - "herbdatanz.com" => 1, # Poisoned Google Images. -); - - -# When verbosity is turned on, we warn about sites that we seem to be hitting -# a lot: usually this means some new poisoner has made it into the search -# engines. But sometimes, the warning is just because that site has a lot -# of stuff on it. So these are the sites that are immune to the "frequent -# site" diagnostic message. -# -my %warningless_sites = ( - "home.earthlink.net" => 1, - "www.angelfire.com" => 1, - "members.aol.com" => 1, - "img.photobucket.com" => 1, - "pics.livejournal.com" => 1, - "tinypic.com" => 1, - "flickr.com" => 1, - "staticflickr.com" => 1, - "live.staticflickr.com" => 1, - "pbase.com" => 1, - "blogger.com" => 1, - "multiply.com" => 1, - "wikimedia.org" => 1, - "twitpic.com" => 1, - "amazonaws.com" => 1, - "blogspot.com" => 1, - "photoshelter.com" => 1, - "myspacecdn.com" => 1, - "feedburner.com" => 1, - "wikia.com" => 1, - "ljplus.ru" => 1, - "yandex.ru" => 1, - "imgur.com" => 1, - "tumblr.com" => 1, - "yfrog.com" => 1, - "cdninstagram.com" => 1, - "gstatic.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... - "local-directory" => 1, # builtin... -); - - -# For decoding HTML-encoded character entities to URLs. -# In This Modern World, probably we should use HTML::Entities instead. -# -my %entity_table = ( - "apos" => '\'', - "quot" => '"', "amp" => '&', "lt" => '<', - "gt" => '>', "nbsp" => ' ', "iexcl" => '', - "cent" => "\xA2", "pound" => "\xA3", "curren" => "\xA4", - "yen" => "\xA5", "brvbar" => "\xA6", "sect" => "\xA7", - "uml" => "\xA8", "copy" => "\xA9", "ordf" => "\xAA", - "laquo" => "\xAB", "not" => "\xAC", "shy" => "\xAD", - "reg" => "\xAE", "macr" => "\xAF", "deg" => "\xB0", - "plusmn" => "\xB1", "sup2" => "\xB2", "sup3" => "\xB3", - "acute" => "\xB4", "micro" => "\xB5", "para" => "\xB6", - "middot" => "\xB7", "cedil" => "\xB8", "sup1" => "\xB9", - "ordm" => "\xBA", "raquo" => "\xBB", "frac14" => "\xBC", - "frac12" => "\xBD", "frac34" => "\xBE", "iquest" => "\xBF", - "Agrave" => "\xC0", "Aacute" => "\xC1", "Acirc" => "\xC2", - "Atilde" => "\xC3", "Auml" => "\xC4", "Aring" => "\xC5", - "AElig" => "\xC6", "Ccedil" => "\xC7", "Egrave" => "\xC8", - "Eacute" => "\xC9", "Ecirc" => "\xCA", "Euml" => "\xCB", - "Igrave" => "\xCC", "Iacute" => "\xCD", "Icirc" => "\xCE", - "Iuml" => "\xCF", "ETH" => "\xD0", "Ntilde" => "\xD1", - "Ograve" => "\xD2", "Oacute" => "\xD3", "Ocirc" => "\xD4", - "Otilde" => "\xD5", "Ouml" => "\xD6", "times" => "\xD7", - "Oslash" => "\xD8", "Ugrave" => "\xD9", "Uacute" => "\xDA", - "Ucirc" => "\xDB", "Uuml" => "\xDC", "Yacute" => "\xDD", - "THORN" => "\xDE", "szlig" => "\xDF", "agrave" => "\xE0", - "aacute" => "\xE1", "acirc" => "\xE2", "atilde" => "\xE3", - "auml" => "\xE4", "aring" => "\xE5", "aelig" => "\xE6", - "ccedil" => "\xE7", "egrave" => "\xE8", "eacute" => "\xE9", - "ecirc" => "\xEA", "euml" => "\xEB", "igrave" => "\xEC", - "iacute" => "\xED", "icirc" => "\xEE", "iuml" => "\xEF", - "eth" => "\xF0", "ntilde" => "\xF1", "ograve" => "\xF2", - "oacute" => "\xF3", "ocirc" => "\xF4", "otilde" => "\xF5", - "ouml" => "\xF6", "divide" => "\xF7", "oslash" => "\xF8", - "ugrave" => "\xF9", "uacute" => "\xFA", "ucirc" => "\xFB", - "uuml" => "\xFC", "yacute" => "\xFD", "thorn" => "\xFE", - "yuml" => "\xFF", - - # HTML 4 entities that do not have 1:1 Latin1 mappings. - "bull" => "*", "hellip"=> "...", "prime" => "'", "Prime" => "\"", - "frasl" => "/", "trade" => "[tm]", "larr" => "<-", "rarr" => "->", - "harr" => "<->", "lArr" => "<=", "rArr" => "=>", "hArr" => "<=>", - "empty" => "\xD8", "minus" => "-", "lowast"=> "*", "sim" => "~", - "cong" => "=~", "asymp" => "~", "ne" => "!=", "equiv" => "==", - "le" => "<=", "ge" => ">=", "lang" => "<", "rang" => ">", - "loz" => "<>", "OElig" => "OE", "oelig" => "oe", "Yuml" => "Y", - "circ" => "^", "tilde" => "~", "ensp" => " ", "emsp" => " ", - "thinsp"=> " ", "ndash" => "-", "mdash" => "--", "lsquo" => "`", - "rsquo" => "'", "sbquo" => "'", "ldquo" => "\"", "rdquo" => "\"", - "bdquo" => "\"", "lsaquo"=> "<", "rsaquo"=> ">", -); - - -############################################################################## -# -# Various global flags set by command line parameters, or computed -# -############################################################################## - - -my $current_state = "???"; # for diagnostics -my $load_method; -my $last_search; -my $image_succeeded = -1; -my $suppress_audit = 0; - -my $verbose_imgmap = 0; # print out rectangles and URLs only (stdout) -my $verbose_warnings = 0; # print out warnings when things go wrong -my $verbose_load = 0; # diagnostics about loading of URLs -my $verbose_filter = 0; # diagnostics about page selection/rejection -my $verbose_net = 0; # diagnostics about network I/O -my $verbose_decode = 0; # diagnostics about img conversion pipelines -my $verbose_http = 0; # diagnostics about all HTTP activity -my $verbose_exec = 0; # diagnostics about executing programs - -my $report_performance_interval = 60 * 15; # print some stats every 15 minutes - -my $http_proxy = undef; -my $http_timeout = 20; -my $cvt_timeout = 10; - -my $min_width = 50; -my $min_height = 50; -my $min_ratio = 1/5; - -my $min_gif_area = (120 * 120); - - -my $no_output_p = 0; -my $urls_only_p = 0; -my $cocoa_p = 0; -my $imagemap_base = undef; - -my @pids_to_kill = (); # forked pids we should kill when we exit, if any. - -my $driftnet_magic = 'driftnet'; -my $driftnet_dir = undef; -my $default_driftnet_cmd = "driftnet -a -m 100"; - -my $local_magic = 'local-directory'; -my $local_dir = undef; - -my $wordlist; - -my %rejected_urls; -my @tripwire_words = ("aberrate", "abode", "amorphous", "antioch", - "arrhenius", "arteriole", "blanket", "brainchild", - "burdensome", "carnival", "cherub", "chord", "clever", - "dedicate", "dilogarithm", "dolan", "dryden", - "eggplant"); - - -############################################################################## -# -# Retrieving URLs -# -############################################################################## - -# returns three values: the HTTP response line; the document headers; -# and the document body. -# -sub get_document_1($$$) { - my ($url, $referer, $timeout) = @_; - - if (!defined($timeout)) { $timeout = $http_timeout; } - if ($timeout > $http_timeout) { $timeout = $http_timeout; } - - my $user_agent = "$progname/$version"; - - if ($url =~ m@^https?://www\.altavista\.com/@s || - $url =~ m@^https?://random\.yahoo\.com/@s || - $url =~ m@^https?://[^./]+\.google\.com/@s || - $url =~ m@^https?://www\.livejournal\.com/@s) { - # block this, you turkeys. - $user_agent = 'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.7)' . - ' Gecko/20070914 Firefox/2.0.0.7'; - } - - my $ua = LWP::UserAgent->new ( agent => $user_agent, - keep_alive => 0, - env_proxy => 0, - ); - $ua->proxy ('http', $http_proxy) if $http_proxy; - $ua->default_header ('Referer' => $referer) if $referer; - $ua->default_header ('Accept' => '*/*'); - $ua->timeout($timeout) if $timeout; - - if (0) { - $ua->add_handler ("request_send", - sub($$$) { - my ($req, $ua, $h) = @_; - print "\n>>[[\n"; $req->dump; print "\n]]\n"; - return; - }); - $ua->add_handler ("response_data", - sub($$$$) { - my ($req, $ua, $h, $data) = @_; - #print "\n<<[[\n"; print $data; print "\n]]\n"; - return 1; - }); - $ua->add_handler ("request_done", - sub($$$) { - my ($req, $ua, $h) = @_; - print "\n<<[[\n"; $req->dump; print "\n]]\n"; - return; - }); - } - - if ($verbose_http) { - LOG (1, " ==> GET $url"); - LOG (1, " ==> User-Agent: $user_agent"); - LOG (1, " ==> Referer: $referer") if $referer; - } - - my $res = $ua->get ($url); - - my $http = ($res ? $res->status_line : '') || ''; - my $head = ($res ? $res->headers() : '') || ''; - $head = $head->as_string() if $head; - my $body = ($res && $res->is_success ? $res->decoded_content : '') || ''; - - LOG ($verbose_net, "get_document_1 $url " . ($referer ? $referer : "")); - - $head =~ s/\r\n/\n/gs; - $head =~ s/\r/\n/gs; - if ($verbose_http) { - foreach (split (/\n/, $head)) { - LOG ($verbose_http, " <== $_"); - } - } - - my @L = split(/\r\n|\r|\n/, $body); - my $lines = @L; - LOG ($verbose_http, - " <== [ body ]: $lines lines, " . length($body) . " bytes"); - - if (!$http) { - LOG (($verbose_net || $verbose_load), "null response: $url"); - return (); - } - - return ( $http, $head, $body ); -} - - -# returns two values: the document headers; and the document body. -# if the given URL did a redirect, returns the redirected-to document. -# -sub get_document($$;$) { - my ($url, $referer, $timeout) = @_; - my $start = time; - - if (defined($referer) && $referer eq $driftnet_magic) { - return get_driftnet_file ($url); - } - - if (defined($referer) && $referer eq $local_magic) { - return get_local_file ($url); - } - - my $orig_url = $url; - my $loop_count = 0; - my $max_loop_count = 4; - - do { - if (defined($timeout) && $timeout <= 0) { - LOG (($verbose_net || $verbose_load), "timed out for $url"); - $suppress_audit = 1; - return (); - } - - my ( $http, $head, $body ) = get_document_1 ($url, $referer, $timeout); - - if (defined ($timeout)) { - my $now = time; - my $elapsed = $now - $start; - $timeout -= $elapsed; - $start = $now; - } - - return () unless $http; # error message already printed - - $http =~ s/[\r\n]+$//s; - - if ( $http =~ m@^HTTP/[0-9.]+ 30[123]@ ) { - $_ = $head; - - my ( $location ) = m@^location:[ \t]*(.*)$@im; - if ( $location ) { - $location =~ s/[\r\n]$//; - - LOG ($verbose_net, "redirect from $url to $location"); - $referer = $url; - $url = $location; - - if ($url =~ m@^/@) { - $referer =~ m@^(https?://[^/]+)@i; - $url = $1 . $url; - } elsif (! ($url =~ m@^[a-z]+:@i)) { - $_ = $referer; - s@[^/]+$@@g if m@^https?://[^/]+/@i; - $_ .= "/" if m@^https?://[^/]+$@i; - $url = $_ . $url; - } - - } else { - LOG ($verbose_net, "no Location with \"$http\""); - return ( $url, $body ); - } - - if ($loop_count++ > $max_loop_count) { - LOG ($verbose_net, - "too many redirects ($max_loop_count) from $orig_url"); - $body = undef; - return (); - } - - } elsif ( $http =~ m@^HTTP/[0-9.]+ ([4-9][0-9][0-9].*)$@ ) { - - LOG (($verbose_net || $verbose_load), "failed: $1 ($url)"); - - # http errors -- return nothing. - $body = undef; - return (); - - } elsif (!$body) { - - LOG (($verbose_net || $verbose_load), "document contains no data: $url"); - return (); - - } else { - - # ok! - return ( $url, $body ); - } - - } while (1); -} - -# If we already have a cookie defined for this site, and the site is trying -# to overwrite that very same cookie, let it do so. This is because nytimes -# expires its cookies - it lets you upgrade to a new cookie without logging -# in again, but you have to present the old cookie to get the new cookie. -# So, by doing this, the built-in cypherpunks cookie will never go "stale". -# -sub set_cookie($$) { - my ($host, $cookie) = @_; - my $oc = $cookies{$host}; - return unless $oc; - $_ = $oc; - my ($oc_name, $oc_value) = m@^([^= \t\r\n]+)=(.*)$@; - $_ = $cookie; - my ($nc_name, $nc_value) = m@^([^= \t\r\n]+)=(.*)$@; - - if ($oc_name eq $nc_name && - $oc_value ne $nc_value) { - $cookies{$host} = $cookie; - LOG ($verbose_net, "overwrote ${host}'s $oc_name cookie"); - } -} - - -############################################################################ -# -# Extracting image URLs from HTML -# -############################################################################ - -# given a URL and the body text at that URL, selects and returns a random -# image from it. returns () if no suitable images found. -# -sub pick_image_from_body($$) { - my ($url, $body) = @_; - - my $base = $url; - $_ = $url; - - # if there's at least one slash after the host, take off the last - # pathname component - if ( m@^https?://[^/]+/@io ) { - $base =~ s@[^/]+$@@go; - } - - # if there are no slashes after the host at all, put one on the end. - if ( m@^https?://[^/]+$@io ) { - $base .= "/"; - } - - $_ = $body; - - # strip out newlines, compress whitespace - s/[\r\n\t ]+/ /go; - - # nuke comments - s/<!--.*?-->//go; - - - # There are certain web sites that list huge numbers of dictionary - # words in their bodies or in their <META NAME=KEYWORDS> tags (surprise! - # Porn sites tend not to be reputable!) - # - # I do not want webcollage to filter on content: I want it to select - # 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/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 - # should be able to select them. - # - # However, picking a random URL is a hard thing to do. The mechanism I'm - # using is to search for a selection of random words. This is not - # perfect, but works ok most of the time. The way it breaks down is when - # some URLs get precedence because their pages list *every word* as - # related -- those URLs come up more often than others. - # - # So, after we've retrieved a URL, if it has too many keywords, reject - # it. We reject it not on the basis of what those keywords are, but on - # the basis that by having so many, the page has gotten an unfair - # advantage against our randomizer. - # - my $trip_count = 0; - foreach my $trip (@tripwire_words) { - $trip_count++ if m/$trip/i; - } - - if ($trip_count >= $#tripwire_words - 2) { - LOG (($verbose_filter || $verbose_load), - "there is probably a dictionary in \"$url\": rejecting."); - $rejected_urls{$url} = -1; - $body = undef; - $_ = undef; - return (); - } - - - my @urls; - my %unique_urls; - - foreach (split(/ *</)) { - if ( m/^meta.*["']keywords["']/i ) { - - # Likewise, reject any web pages that have a KEYWORDS meta tag - # that is too long. - # - my $L = length($_); - if ($L > 1000) { - LOG (($verbose_filter || $verbose_load), - "excessive keywords ($L bytes) in $url: rejecting."); - $rejected_urls{$url} = $L; - $body = undef; - $_ = undef; - return (); - } else { - LOG ($verbose_filter, " keywords ($L bytes) in $url (ok)"); - } - - } elsif (m/^ (IMG|A) \b .* (SRC|HREF) \s* = \s* ["']? (.*?) [ "'<>] /six || - m/^ (LINK|META) \b .* (REL|PROPERTY) \s* = \s* - ["']? (image_src|og:image) ["']? /six) { - - my $was_inline = (lc($1) eq 'img'); - my $was_meta = (lc($1) eq 'link' || lc($1) eq 'meta'); - my $link = $3; - - # For <link rel="image_src" href="..."> - # and <meta property="og:image" content="..."> - # - if ($was_meta) { - next unless (m/ (HREF|CONTENT) \s* = \s* ["']? (.*?) [ "'<>] /six); - $link = $2; - } - - my ( $width ) = m/width ?=[ \"]*(\d+)/oi; - my ( $height ) = m/height ?=[ \"]*(\d+)/oi; - $_ = $link; - - if ( m@^/@o ) { - my $site; - ( $site = $base ) =~ s@^(https?://[^/]*).*@$1@gio; - $_ = "$site$link"; - } elsif ( ! m@^[^/:?]+:@ ) { - $_ = "$base$link"; - s@/\./@/@g; - 1 while (s@/[^/]+/\.\./@/@g); - } - - # skip non-http - if ( ! m@^https?://@io ) { - next; - } - - # skip non-image - if ( ! m@[.](gif|jpg|jpeg|pjpg|pjpeg|png)$@io ) { - next; - } - - # skip really short or really narrow images - if ( $width && $width < $min_width) { - if (!$height) { $height = "?"; } - LOG ($verbose_filter, " skip narrow image $_ (${width}x$height)"); - next; - } - - if ( $height && $height < $min_height) { - if (!$width) { $width = "?"; } - LOG ($verbose_filter, " skip short image $_ (${width}x$height)"); - next; - } - - # skip images with ratios that make them look like banners. - if ($min_ratio && $width && $height && - ($width * $min_ratio ) > $height) { - if (!$height) { $height = "?"; } - LOG ($verbose_filter, " skip bad ratio $_ (${width}x$height)"); - next; - } - - # skip GIFs with a small number of pixels -- those usually suck. - if ($width && $height && - m/\.gif$/io && - ($width * $height) < $min_gif_area) { - LOG ($verbose_filter, " skip small GIF $_ (${width}x$height)"); - 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 = $_; - - if ($unique_urls{$url}) { - LOG ($verbose_filter, " skip duplicate image $_"); - next; - } - - LOG ($verbose_filter, - " image $url" . - ($width && $height ? " (${width}x${height})" : "") . - ($was_meta ? " (meta)" : $was_inline ? " (inline)" : "")); - - - my $weight = 1; - - if ($was_meta) { - $weight = 20; # meta tag images are far preferable to inline images. - } else { - if ($url !~ m@[.](gif|png)$@io ) { - $weight += 2; # JPEGs are preferable to GIFs and PNGs. - } - if (! $was_inline) { - $weight += 4; # pointers to images are preferable to inlined images. - } - } - - $unique_urls{$url}++; - for (my $i = 0; $i < $weight; $i++) { - $urls[++$#urls] = $url; - } - } - } - - my $fsp = ($body =~ m@<frameset@i); - - $_ = undef; - $body = undef; - - @urls = depoison (@urls); - - if ( $#urls < 0 ) { - LOG ($verbose_load, "no images on $base" . ($fsp ? " (frameset)" : "")); - return (); - } - - # pick a random element of the table - my $i = int(rand($#urls+1)); - $url = $urls[$i]; - - LOG ($verbose_load, "picked image " .($i+1) . "/" . ($#urls+1) . ": $url"); - - return $url; -} - - -# Given a URL and the RSS feed from that URL, pick a random image from -# the feed. This is a lot simpler than extracting images out of a page: -# we already know we have reasonable images, so we just pick one. -# Returns: the real URL of the page (preferably not the RSS version), -# and the image. - -sub pick_image_from_rss($$) { - my ($url, $body) = @_; - - my ($base) = ($body =~ m@<link>([^<>]+)</link>@si); # root link - - my @items = ($body =~ m@<item\b[^<>]*>(.*?)</item>@gsi); - return unless @items; - - my $n = @items; - my $i = int(rand($n)); - my $item = $items[$i]; - - $base = $1 if ($item =~ m@<link>([^<>]+)</link>@si); # item link - $base = $url unless $base; - - ($url) = ($item =~ m/<enclosure\b[^<>]*\burl="(.*?)"/si); - return unless $url; - - LOG ($verbose_load, "picked image $i/$n: $url"); - return ($base, $url); -} - - -############################################################################ -# -# Subroutines for getting pages and images out of search engines -# -############################################################################ - - -sub pick_dictionary() { - my @dicts = ("/usr/dict/words", - "/usr/share/dict/words", - "/usr/share/lib/dict/words", - "/usr/share/dict/cracklib-small", - "/usr/share/dict/cracklib-words" - ); - foreach my $f (@dicts) { - if (-f $f) { - $wordlist = $f; - last; - } - } - error ("$dicts[0] does not exist") unless defined($wordlist); -} - -# returns a random word from the dictionary -# -sub random_word() { - - return undef unless open (my $in, '<', $wordlist); - - my $size = (stat($in))[7]; - my $word = undef; - my $count = 0; - - while (1) { - error ("looping ($count) while reading $wordlist") - if (++$count > 100); - - my $pos = int (rand ($size)); - if (seek ($in, $pos, 0)) { - $word = <$in>; # toss partial line - $word = <$in>; # keep next line - } - - 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 ($sep) = @_; - return (random_word() . $sep . - random_word() . $sep . - random_word() . $sep . - random_word() . $sep . - random_word()); -} - - -sub url_quote($) { - my ($s) = @_; - $s =~ s|([^-a-zA-Z0-9.\@/_\r\n])|sprintf("%%%02X", ord($1))|ge; - return $s; -} - -sub url_unquote($) { - my ($s) = @_; - $s =~ s/[+]/ /g; - $s =~ s/%([a-z0-9]{2})/chr(hex($1))/ige; - 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/(&([a-z]+);)/{ $entity_table{$2} || $1; }/gexi; # e.g., ' - $s =~ s/(&\#(\d+);)/{ chr($2) }/gexi; # e.g., ' - 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; -# - a list of URLs from the page that the search engine returned; -# Note that this list contains all kinds of internal search engine -# junk URLs too -- caller must prune them. -# -sub pick_from_search_engine($$$) { - my ( $timeout, $search_url, $words ) = @_; - - $_ = $words; - s/%20/ /g; - - print STDERR "\n\n" if ($verbose_load); - - LOG ($verbose_load, "words: $_"); - LOG ($verbose_load, "URL: $search_url"); - - $last_search = $search_url; # for warnings - - my $start = time; - my ( $base, $body ) = get_document ($search_url, undef, $timeout); - if (defined ($timeout)) { - $timeout -= (time - $start); - if ($timeout <= 0) { - $body = undef; - LOG (($verbose_net || $verbose_load), - "timed out (late) for $search_url"); - $suppress_audit = 1; - return (); - } - } - - return () if (! $body); - - - my @subpages; - - my $search_count = "?"; - if ($body =~ m@found (approximately |about )?(<B>)?(\d+)(</B>)? image@) { - $search_count = $3; - } elsif ($body =~ m@<NOBR>((\d{1,3})(,\d{3})*) @i) { - $search_count = $1; - } elsif ($body =~ m@found ((\d{1,3})(,\d{3})*|\d+) Web p@) { - $search_count = $1; - } elsif ($body =~ m@found about ((\d{1,3})(,\d{3})*|\d+) results@) { - $search_count = $1; - } elsif ($body =~ m@\b\d+ - \d+ of (\d+)\b@i) { # avimages - $search_count = $1; - } elsif ($body =~ m@About ((\d{1,3})(,\d{3})*) images@i) { # avimages - $search_count = $1; - } elsif ($body =~ m@We found ((\d{1,3})(,\d{3})*|\d+) results@i) { # *vista - $search_count = $1; - } elsif ($body =~ m@ of about <B>((\d{1,3})(,\d{3})*)<@i) { # googleimages - $search_count = $1; - } elsif ($body =~ m@<B>((\d{1,3})(,\d{3})*)</B> Web sites were found@i) { - $search_count = $1; # lycos - } elsif ($body =~ m@WEB.*?RESULTS.*?\b((\d{1,3})(,\d{3})*)\b.*?Matches@i) { - $search_count = $1; # hotbot - } elsif ($body =~ m@no photos were found containing@i) { # avimages - $search_count = "0"; - } elsif ($body =~ m@found no document matching@i) { # avtext - $search_count = "0"; - } - 1 while ($search_count =~ s/^(\d+)(\d{3})/$1,$2/); - -# if ($search_count eq "?" || $search_count eq "0") { -# my $file = "/tmp/wc.html"; -# open (my $out, '>', $file) || error ("writing $file: $!"); -# print $out $body; -# close $out; -# print STDERR blurb() . "###### wrote $file\n"; -# } - - - my $length = length($body); - my $href_count = 0; - - $_ = $body; - - s/[\r\n\t ]+/ /g; - - - s/(<A )/\n$1/gi; - foreach (split(/\n/)) { - $href_count++; - my ($u) = m@<A\s.*?\bHREF\s*=\s*([\"\'][^\"\'<>]+)@i; - next unless $u; - my ($u2) = m@<IMG\s.*\bSRC\s*=\s*[\"\']([^\"\'<>]+)@i; - - if (m/\bm="\{(.*?)\}"/s) { # Bing info is inside JSON crud - my $json = html_unquote($1); - my ($href) = ($json =~ m/\b(?:surl|purl)\"?:\s*"(.*?)"/s); - my ($img) = ($json =~ m/\b(?:imgurl|murl)\"?:\s*"(.*?)"/s); - $u = "$img\t$href" if ($img && $href); - - } elsif ($u2 && $u2 =~ m@://[^/]*\.gstatic\.com/@s) { $u = $u2; - $u =~ s/^\"|\"$//s; - - } elsif ($u =~ m/^\"([^\"]*)\"/) { $u = $1 # quoted string - } elsif ($u =~ m/^([^\s]*)\s/) { $u = $1; # or token - } - - if ( $rejected_urls{$u} ) { - LOG ($verbose_filter, " pre-rejecting candidate: $u"); - next; - } - - LOG ($verbose_http, " HREF: $u"); - - $subpages[++$#subpages] = $u; - } - - if ( $#subpages < 0 ) { - LOG ($verbose_filter, - "found nothing on $base ($length bytes, $href_count links)."); - return (); - } - - LOG ($verbose_filter, "" . $#subpages+1 . " links on $search_url"); - - return ($search_count, @subpages); -} - - -sub depoison(@) { - my (@urls) = @_; - my @urls2 = (); - foreach (@urls) { - my ($h) = m@^https?://([^/: \t\r\n]+)@i; - - next unless defined($h); - - if ($poisoners{$h}) { - LOG (($verbose_filter), " rejecting poisoner: $_"); - next; - } - if ($h =~ m@([^.]+\.[^.]+\.[^.]+)$@ && - $poisoners{$1}) { - LOG (($verbose_filter), " rejecting poisoner: $_"); - next; - } - if ($h =~ m@([^.]+\.[^.]+)$@ && - $poisoners{$1}) { - LOG (($verbose_filter), " rejecting poisoner: $_"); - next; - } - - push @urls2, $_; - } - return @urls2; -} - - -# 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. -# -sub pick_image_from_pages($$$$@) { - my ($base, $total_hit_count, $unfiltered_link_count, $timeout, @pages) = @_; - - $total_hit_count = "?" unless defined($total_hit_count); - - @pages = depoison (@pages); - LOG ($verbose_load, - "" . ($#pages+1) . " candidates of $unfiltered_link_count links" . - " ($total_hit_count total)"); - - return () if ($#pages < 0); - - my $i = int(rand($#pages+1)); - my $page = $pages[$i]; - - LOG ($verbose_load, "picked page $page"); - - $suppress_audit = 1; - - my ( $base2, $body2 ) = get_document ($page, $base, $timeout); - - if (!$base2 || !$body2) { - $body2 = undef; - return (); - } - - my $img = pick_image_from_body ($base2, $body2); - $body2 = undef; - - if ($img) { - return ($base2, $img); - } else { - return (); - } -} - - -############################################################################# -## -## Pick images from random pages returned by the Yahoo Random Link -## -############################################################################# -# -## yahoorand -#my $yahoo_random_link = "http://random.yahoo.com/fast/ryl"; -# -# -# Picks a random page; picks a random image on that page; -# returns two URLs: the page containing the image, and the image. -# Returns () if nothing found this time. -# -#sub pick_from_yahoo_random_link($) { -# my ($timeout) = @_; -# -# print STDERR "\n\n" if ($verbose_load); -# LOG ($verbose_load, "URL: $yahoo_random_link"); -# -# $last_search = $yahoo_random_link; # for warnings -# -# $suppress_audit = 1; -# -# my ( $base, $body ) = get_document ($yahoo_random_link, undef, $timeout); -# if (!$base || !$body) { -# $body = undef; -# return; -# } -# -# LOG ($verbose_load, "redirected to: $base"); -# -# my $img = pick_image_from_body ($base, $body); -# $body = undef; -# -# if ($img) { -# return ($base, $img); -# } else { -# return (); -# } -#} - - -############################################################################ -# -# Pick images from random pages returned by the Alta Vista Random Link -# Note: this seems to have gotten a *lot* less random lately (2007). -# -############################################################################ - -# altavista -my $alta_vista_random_link = "http://www.altavista.com/image/randomlink"; - - -# Picks a random page; picks a random image on that page; -# returns two URLs: the page containing the image, and the image. -# Returns () if nothing found this time. -# -sub pick_from_alta_vista_random_link($) { - my ($timeout) = @_; - - print STDERR "\n\n" if ($verbose_load); - LOG ($verbose_load, "URL: $alta_vista_random_link"); - - $last_search = $alta_vista_random_link; # for warnings - - $suppress_audit = 1; - - my ( $base, $body ) = get_document ($alta_vista_random_link, - undef, $timeout); - if (!$base || !$body) { - $body = undef; - return; - } - - LOG ($verbose_load, "redirected to: $base"); - - my $img = pick_image_from_body ($base, $body); - $body = undef; - - if ($img) { - return ($base, $img); - } else { - return (); - } -} - - -############################################################################ -# -# Pick images by feeding random words into Alta Vista Image Search -# -############################################################################ - - -my $alta_vista_images_url = "http://www.altavista.com/image/results" . - "?ipht=1" . # photos - "&igrph=1" . # graphics - "&iclr=1" . # color - "&ibw=1" . # b&w - "&micat=1" . # no partner sites - "&sc=on" . # "site collapse" - "&q="; - -# avimages -sub pick_from_alta_vista_images($) { - my ($timeout) = @_; - - my $words = random_word(); - my $page = (int(rand(9)) + 1); - my $search_url = $alta_vista_images_url . $words; - - if ($page > 1) { - $search_url .= "&pgno=" . $page; # page number - $search_url .= "&stq=" . (($page-1) * 12); # first hit result on page - } - - my ($search_hit_count, @subpages) = - pick_from_search_engine ($timeout, $search_url, $words); - - my @candidates = (); - foreach my $u (@subpages) { - - # avimages is encoding their URLs now. - next unless ($u =~ s/^.*\*\*(http%3a.*$)/$1/gsi); - $u = url_unquote($u); - - next unless ($u =~ m@^https?://@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 - - next if ($u =~ m@[/.]viewimages\.com\b@i); # stacked deck - next if ($u =~ m@[/.]gettyimages\.com\b@i); - - LOG ($verbose_filter, " candidate: $u"); - push @candidates, $u; - } - - return pick_image_from_pages ($search_url, $search_hit_count, $#subpages+1, - $timeout, @candidates); -} - - - -############################################################################ -# -# Pick images from Aptix security cameras -# Cribbed liberally from google image search code. -# By Jason Sullivan <jasonsul@us.ibm.com> -# -############################################################################ - -my $aptix_images_url = ("http://www.google.com/search" . - "?q=inurl:%22jpg/image.jpg%3Fr%3D%22"); - -# securitycam -sub pick_from_security_camera($) { - my ($timeout) = @_; - - my $page = (int(rand(9)) + 1); - my $num = 20; # 20 images per page - my $search_url = $aptix_images_url; - - 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, ''); - - my @candidates = (); - my %referers; - foreach my $u (@subpages) { - next if ($u =~ m@[/.]google\.com\b@i); # skip google builtins (most links) - next unless ($u =~ m@jpg/image.jpg\?r=@i); # All pics contain this - - LOG ($verbose_filter, " candidate: $u"); - push @candidates, $u; - $referers{$u} = $u; - } - - @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); -} - - -############################################################################ -# -# Pick images by feeding random words into Google Image Search. -# By Charles Gales <gales@us.ibm.com> -# -############################################################################ - -my $google_images_url = 'https://www.google.com/search' . - '?source=lnms&tbm=isch&tbs=isz:l&q='; - -# googleimgs -sub pick_from_google_images($;$$) { - my ($timeout, $words, $max_page) = @_; - - if (!defined($words)) { - $words = random_word(); # only one word for Google - } - - my $off = int(rand(40)); - my $search_url = $google_images_url . $words . "&start=" . $off; - - my ($search_hit_count, @subpages) = - pick_from_search_engine ($timeout, $search_url, $words); - - my @candidates = (); - foreach my $u (@subpages) { - $u = html_unquote($u); - # next if ($u =~ m@^https?://[^.]*\.(google|youtube)\.com/@s); - next unless ($u =~ m@^https?://[^/]*\.gstatic\.com@s); - LOG ($verbose_filter, " candidate: $u"); - push @candidates, $u; - } - - @candidates = depoison (@candidates); - return () if ($#candidates < 0); - my $i = int(rand($#candidates+1)); - my $img = $candidates[$i]; - - LOG ($verbose_load, "picked image " . ($i+1) . ": $img"); - return ($img, $img); -} - - - -############################################################################ -# -# Pick images by feeding random numbers into Google Image Search. -# By jwz, suggested by Ian O'Donnell. -# -############################################################################ - - -# googlenums -sub pick_from_google_image_numbers($) { - my ($timeout) = @_; - - my $max = 9999; - my $number = int(rand($max)); - - $number = sprintf("%04d", $number) - if (rand() < 0.3); - - pick_from_google_images ($timeout, "$number"); -} - - - -############################################################################ -# -# 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/ -# May 2017: Commented out a bunch of formats that have fallen out of favor. -# -############################################################################ - -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) = @_; - - my $i = int(rand($#photomakers + 1)); - my $fn = $photomakers[$i]; - my $file = &$fn; - #$file .= "%20filetype:jpg"; - - pick_from_google_images ($timeout, $file); -} - - -############################################################################ -# -# Pick images by feeding random words into Google Image Search. -# By the way: fuck Microsoft. -# -############################################################################ - -my $bing_images_url = "http://www.bing.com/images/async?q="; - - -# bingimgs -sub pick_from_bing_images($;$$) { - my ($timeout, $words, $max_page) = @_; - - if (!defined($words)) { - $words = random_word(); # only one word for Bing - } - - my $off = int(rand(300)); - my $search_url = $bing_images_url . $words . "&first=" . $off; - - my ($search_hit_count, @subpages) = - pick_from_search_engine ($timeout, $search_url, $words); - - my @candidates = (); - my %referers; - foreach my $u (@subpages) { - my ($img, $ref) = ($u =~ m/^(.*?)\t(.*)$/s); - next unless $img; - LOG ($verbose_filter, " candidate: $ref"); - push @candidates, $img; - $referers{$img} = $ref; - } - - @candidates = depoison (@candidates); - return () if ($#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, $img); -} - - - - -############################################################################ -# -# Pick images by feeding random numbers into Bing Image Search. -# -############################################################################ - -# bingnums -sub pick_from_bing_image_numbers($) { - my ($timeout) = @_; - - my $max = 9999; - my $number = int(rand($max)); - - $number = sprintf("%04d", $number) - if (rand() < 0.3); - - pick_from_bing_images ($timeout, "$number"); -} - - -############################################################################ -# -# Pick images by feeding random numbers into Bing Image Search. -# -############################################################################ - -# bingphotos -sub pick_from_bing_image_photos($) { - my ($timeout) = @_; - - my $i = int(rand($#photomakers + 1)); - my $fn = $photomakers[$i]; - my $file = &$fn; - - pick_from_bing_images ($timeout, $file); -} - - -############################################################################ -# -# Pick images by feeding random words into Alta Vista Text Search -# -############################################################################ - - -my $alta_vista_url = "http://www.altavista.com/web/results" . - "?pg=aq" . - "&aqmode=s" . - "&filetype=html" . - "&sc=on" . # "site collapse" - "&nbq=50" . - "&aqo="; - -# avtext -sub pick_from_alta_vista_text($) { - my ($timeout) = @_; - - my $words = random_words('%20'); - my $page = (int(rand(9)) + 1); - my $search_url = $alta_vista_url . $words; - - if ($page > 1) { - $search_url .= "&pgno=" . $page; - $search_url .= "&stq=" . (($page-1) * 10); - } - - my ($search_hit_count, @subpages) = - pick_from_search_engine ($timeout, $search_url, $words); - - my @candidates = (); - foreach my $u (@subpages) { - - # Those altavista fuckers are playing really nasty redirection games - # these days: the filter your clicks through their site, but use - # onMouseOver to make it look like they're not! Well, it makes it - # easier for us to identify search results... - # - next unless ($u =~ s/^.*\*\*(http%3a.*$)/$1/gsi); - $u = url_unquote($u); - - next unless ($u =~ m@^https?://@i); # skip non-HTTP or relative URLs - next if ($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, $u; - } - - return pick_image_from_pages ($search_url, $search_hit_count, $#subpages+1, - $timeout, @candidates); -} - - - -############################################################################ -# -# Pick images by feeding random words into Hotbot -# -############################################################################ - -my $hotbot_search_url =("http://hotbot.lycos.com/default.asp" . - "?ca=w" . - "&descriptiontype=0" . - "&imagetoggle=1" . - "&matchmode=any" . - "&nummod=2" . - "&recordcount=50" . - "&sitegroup=1" . - "&stem=1" . - "&cobrand=undefined" . - "&query="); - -sub pick_from_hotbot_text($) { - 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... - # - my $words = random_word(); - - my $start = int(rand(8)) * 10 + 1; - my $search_url = $hotbot_search_url . $words . "&first=$start&page=more"; - - my ($search_hit_count, @subpages) = - pick_from_search_engine ($timeout, $search_url, $words); - - my @candidates = (); - foreach my $u (@subpages) { - - # Hotbot plays redirection games too - # (not any more?) -# next unless ($u =~ m@/director.asp\?.*\btarget=([^&]+)@); -# $u = url_decode($1); - - next unless ($u =~ m@^https?://@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, $u; - } - - return pick_image_from_pages ($search_url, $search_hit_count, $#subpages+1, - $timeout, @candidates); -} - - - -############################################################################ -# -# Pick images by feeding random words into Lycos -# -############################################################################ - -my $lycos_search_url = "http://search.lycos.com/default.asp" . - "?lpv=1" . - "&loc=searchhp" . - "&tab=web" . - "&query="; - -sub pick_from_lycos_text($) { - 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... - # - my $words = random_word(); - - my $start = int(rand(8)) * 10 + 1; - my $search_url = $lycos_search_url . $words . "&first=$start&page=more"; - - my ($search_hit_count, @subpages) = - pick_from_search_engine ($timeout, $search_url, $words); - - my @candidates = (); - foreach my $u (@subpages) { - - # Lycos plays redirection games. - # (not any more?) -# next unless ($u =~ m@^https?://click.lycos.com/director.asp -# .* -# \btarget=([^&]+) -# .* -# @x); -# $u = url_decode($1); - - next unless ($u =~ m@^https?://@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, $u; - } - - return pick_image_from_pages ($search_url, $search_hit_count, $#subpages+1, - $timeout, @candidates); -} - - - -############################################################################ -# -# Pick images by feeding random words into news.yahoo.com -# -############################################################################ - -my $yahoo_news_url = "http://news.search.yahoo.com/search/news" . - "?c=news_photos" . - "&p="; - -# yahoonews -sub pick_from_yahoo_news_text($) { - my ($timeout) = @_; - - $last_search = $yahoo_news_url; # for warnings - - my $words = random_word(); - my $search_url = $yahoo_news_url . $words; - - my ($search_hit_count, @subpages) = - pick_from_search_engine ($timeout, $search_url, $words); - - my @candidates = (); - foreach my $u (@subpages) { - - # de-redirectize the URLs - $u =~ s@^https?://rds\.yahoo\.com/.*-http%3A@http:@s; - - # only accept URLs on Yahoo's news site - next unless ($u =~ m@^https?://dailynews\.yahoo\.com/@i || - $u =~ m@^https?://story\.news\.yahoo\.com/@i); - next unless ($u =~ m@&u=/@); - - LOG ($verbose_filter, " candidate: $u"); - push @candidates, $u; - } - - return pick_image_from_pages ($search_url, $search_hit_count, $#subpages+1, - $timeout, @candidates); -} - - - -############################################################################ -# -# 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); - - # Often the document comes back empty. If so, just use the cache. - # return () unless $body; - $body = '' unless defined($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); -} - - -############################################################################ -# -# 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/^https?:/i); - next if ($u =~ m@^https?://(searchirc\.com\|ircimages\.com)@i); - next unless ($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); -} - - -############################################################################ -# -# Pick images from Twitpic's list of recently-posted images. -# -############################################################################ - -my $twitpic_img_url = "http://twitpic.com/public_timeline/feed.rss"; - -# With most of our image sources, we get a random page and then select -# from the images on it. However, in the case of Twitpic, 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 $twitpic_cache_size = 1000; -my @twitpic_cache = (); # fifo, for ordering by age -my %twitpic_cache = (); # hash, for detecting dups - -# twitpic -sub pick_from_twitpic_images($) { - my ($timeout) = @_; - - $last_search = $twitpic_img_url; # for warnings - - my ( $base, $body ) = get_document ($twitpic_img_url, undef, $timeout); - - # Update the cache. - - if ($body) { - $body =~ s/\n/ /gs; - $body =~ s/(<item)\b/\n$1/gsi; - - my @items = split (/\n/, $body); - shift @items; - foreach (@items) { - next unless (m@<link>([^<>]*)</link>@si); - my $page = html_unquote ($1); - - $page =~ s@/$@@s; - $page .= '/full'; - - next if ($twitpic_cache{$page}); # already have it - - LOG ($verbose_filter, " candidate: $page"); - push @twitpic_cache, $page; - $twitpic_cache{$page} = $page; - } - } - - # Pull from the cache. - - return () if ($#twitpic_cache == -1); - - my $n = $#twitpic_cache+1; - my $i = int(rand($n)); - my $page = $twitpic_cache[$i]; - - # delete this one from @twitpic_cache and from %twitpic_cache. - # - @twitpic_cache = ( @twitpic_cache[0 .. $i-1], - @twitpic_cache[$i+1 .. $#twitpic_cache] ); - delete $twitpic_cache{$page}; - - # Keep the size of the cache under the limit by nuking older entries - # - while ($#twitpic_cache >= $twitpic_cache_size) { - my $page = shift @twitpic_cache; - delete $twitpic_cache{$page}; - } - - ( $base, $body ) = get_document ($page, undef, $timeout); - my $img = undef; - $body = '' unless defined($body); - - foreach (split (/<img\s+/, $body)) { - my ($src) = m/\bsrc=[\"\'](.*?)[\"\']/si; - next unless $src; - next if m@/js/@s; - next if m@/images/@s; - - $img = $src; - - $img = "http:$img" if ($img =~ m@^//@s); # Oh come on - - # Sometimes these images are hosted on twitpic, sometimes on Amazon. - if ($img =~ m@^/@) { - $base =~ s@^(https?://[^/]+)/.*@$1@s; - $img = $base . $img; - } - last; - } - - if (!$img) { - LOG ($verbose_load, "no matching images on $page\n"); - return (); - } - - LOG ($verbose_load, "picked image " .($i+1) . "/$n: $img"); - - return ($page, $img); -} - - -############################################################################ -# -# Pick images from Twitter's list of recently-posted updates. -# -############################################################################ - -# With most of our image sources, we get a random page and then select -# from the images on it. However, in the case of Twitter, the page -# of images only updates once a minute; so we'll remember the last N entries -# on it and randomly select from those, to get a wider variety each time. - -my $twitter_img_url = "http://api.twitter.com/1/statuses/" . - "public_timeline.json" . - "?include_entities=true" . - "&include_rts=true" . - "&count=200"; - -my $twitter_cache_size = 1000; - -my @twitter_cache = (); # fifo, for ordering by age -my %twitter_cache = (); # hash, for detecting dups - - -# twitter -sub pick_from_twitter_images($) { - my ($timeout) = @_; - - $last_search = $twitter_img_url; # for warnings - - my ( $base, $body ) = get_document ($twitter_img_url, undef, $timeout); - # Update the cache. - - if ($body) { - $body =~ s/[\r\n]+/ /gs; - - # Parsing JSON is a pain in the ass. So we halfass it as usual. - $body =~ s/^\[|\]$//s; - $body =~ s/(\[.*?\])/{ $_ = $1; s@\},@\} @gs; $_; }/gsexi; - my @items = split (/\},\{/, $body); - foreach (@items) { - my ($name) = m@"screen_name":"([^\"]+)"@si; - my ($img) = m@"media_url":"([^\"]+)"@si; - my ($page) = m@"display_url":"([^\"]+)"@si; - next unless ($name && $img && $page); - foreach ($img, $page) { - s/\\//gs; - $_ = "http://$_" unless (m/^http/si); - } - - next if ($twitter_cache{$page}); # already have it - - LOG ($verbose_filter, " candidate: $page - $img"); - push @twitter_cache, $page; - $twitter_cache{$page} = $img; - } - } - - # Pull from the cache. - - return () if ($#twitter_cache == -1); - - my $n = $#twitter_cache+1; - my $i = int(rand($n)); - my $page = $twitter_cache[$i]; - my $url = $twitter_cache{$page}; - - # delete this one from @twitter_cache and from %twitter_cache. - # - @twitter_cache = ( @twitter_cache[0 .. $i-1], - @twitter_cache[$i+1 .. $#twitter_cache] ); - delete $twitter_cache{$page}; - - # Keep the size of the cache under the limit by nuking older entries - # - while ($#twitter_cache >= $twitter_cache_size) { - my $page = shift @twitter_cache; - delete $twitter_cache{$page}; - } - - LOG ($verbose_load, "picked page $url"); - - $suppress_audit = 1; - - return ($page, $url); -} - - -############################################################################ -# -# Pick images from Flickr's page of recently-posted photos. -# -############################################################################ - -my $flickr_img_url = "http://www.flickr.com/explore/"; - -# Like LiveJournal, the Flickr page of images tends to update slowly, -# so remember the last N entries on it and randomly select from those. - -# I know that Flickr has an API (http://www.flickr.com/services/api/) -# but it was easy enough to scrape the HTML, so I didn't bother exploring. - -my $flickr_cache_size = 1000; -my @flickr_cache = (); # fifo, for ordering by age -my %flickr_cache = (); # hash, for detecting dups - - -# flickr_recent -sub pick_from_flickr_recent($) { - my ($timeout) = @_; - - my $start = 16 * int(rand(100)); - - $last_search = $flickr_img_url; # for warnings - $last_search .= "?start=$start" if ($start > 0); - - my ( $base, $body ) = get_document ($last_search, undef, $timeout); - - # If the document comes back empty. just use the cache. - # return () unless $body; - $body = '' unless defined($body); - - my $count = 0; - my $count2 = 0; - - if ($body =~ m@{ *"_data": \[ ( .*? \} ) \]@six) { - $body = $1; - } else { - LOG ($verbose_load, "flickr unparsable: $last_search"); - return (); - } - - $body =~ s/[\r\n]/ /gs; - $body =~ s/(\},) *(\{)/$1\n$2/gs; # "_flickrModelRegistry" - - foreach my $chunk (split (/\n/, $body)) { - my ($img) = ($chunk =~ m@"displayUrl": *"(.*?)"@six); - next unless defined ($img); - $img =~ s/\\//gs; - $img = "http:$img" unless ($img =~ m/^http/s); - - my ($user) = ($chunk =~ m/"pathAlias": *"(.*?)"/si); - next unless defined ($user); - - my ($id) = ($img =~ m@/\d+/(\d+)_([\da-f]+)_@si); - my ($page) = "https://www.flickr.com/photos/$user/$id/"; - - # $img =~ s/_[a-z](\.[a-z\d]+)$/$1/si; # take off "thumb" suffix - - $count++; - next if ($flickr_cache{$img}); # already have it - - my @pair = ($img, $page, $start); - LOG ($verbose_filter, " candidate: $img"); - push @flickr_cache, \@pair; - $flickr_cache{$img} = \@pair; - $count2++; - } - - return () if ($#flickr_cache == -1); - - my $n = $#flickr_cache+1; - my $i = int(rand($n)); - my ($img, $page) = @{$flickr_cache[$i]}; - - # delete this one from @flickr_cache and from %flickr_cache. - # - @flickr_cache = ( @flickr_cache[0 .. $i-1], - @flickr_cache[$i+1 .. $#flickr_cache] ); - delete $flickr_cache{$img}; - - # Keep the size of the cache under the limit by nuking older entries - # - while ($#flickr_cache >= $flickr_cache_size) { - my $pairP = shift @flickr_cache; - my $img = $pairP->[0]; - delete $flickr_cache{$img}; - } - - LOG ($verbose_load, "picked image " .($i+1) . "/$n: $img"); - - return ($page, $img); -} - - -############################################################################ -# -# Pick images from a random RSS feed on Flickr. -# -############################################################################ - -my $flickr_rss_base = ("http://www.flickr.com/services/feeds/" . - "photos_public.gne" . - "?format=rss_200_enc&tagmode=any&tags="); - -# Picks a random RSS feed; picks a random image from that feed; -# returns 2 URLs: the page containing the image, and the image. -# Mostly by Joe Mcmahon <mcmahon@yahoo-inc.com> -# -# flickr_random -sub pick_from_flickr_random($) { - my $timeout = shift; - - my $words = random_words(','); - my $rss = $flickr_rss_base . $words; - $last_search = $rss; - - $_ = $words; - s/,/ /g; - - print STDERR "\n\n" if ($verbose_load); - LOG ($verbose_load, "words: $_"); - LOG ($verbose_load, "URL: $last_search"); - - $suppress_audit = 1; - - my ( $base, $body ) = get_document ($last_search, undef, $timeout); - if (!$base || !$body) { - $body = undef; - return; - } - - my $img; - ($base, $img) = pick_image_from_rss ($base, $body); - $body = undef; - return () unless defined ($img); - - LOG ($verbose_load, "redirected to: $base"); - return ($base, $img); -} - - -############################################################################ -# -# Pick random images from Instagram. -# -############################################################################ - -my $instagram_url_base = "https://api.instagram.com/v1/media/popular"; - -# instagram_random -sub pick_from_instagram($) { - my $timeout = shift; - - # Liberated access tokens. - # jsdo.it search for: instagram client_id - # Google search for: instagram "&client_id=" site:jsfiddle.net - my @tokens = (#'b59fbe4563944b6c88cced13495c0f49', # gramfeed.com - #'fa26679250df49c48a33fbcf30aae989', # instac.at - #'d9494686198d4dfeb954979a3e270e5e', # iconosquare.com - #'793ef48bb18e4197b61afce2d799b81c', # jsdo.it - #'67b8a3e0073449bba70600d0fc68e6cb', # jsdo.it - #'26a098e0df4d4b9ea8b4ce6c505b7742', # jsdo.it - #'2437cbcd906a4c10940f990d283d3cd5', # jsdo.it - #'191c7d7d5312464cbd92134f36ffdab5', # jsdo.it - #'acfec809437b4340b2c38f66503af774', # jsdo.it - #'e9f77604a3a24beba949c12d18130988', # jsdo.it - #'2cd7bcf68ae346529770073d311575b3', # jsdo.it - #'830c600fe8d742e2ab3f3b94f9bb22b7', # jsdo.it - #'55865a0397ad41e5997dd95ef4df8da1', # jsdo.it - #'192a5742f3644ea8bed1d25e439286a8', # jsdo.it - #'38ed1477e7a44595861b8842cdb8ba23', # jsdo.it - #'e52f79f645f54488ad0cc47f6f55ade6', # jsfiddle.net - ); - - my $tok = $tokens[int(rand($#tokens+1))]; - $last_search = $instagram_url_base . "?client_id=" . $tok; - - print STDERR "\n\n" if ($verbose_load); - LOG ($verbose_load, "URL: $last_search"); - - my ( $base, $body ) = get_document ($last_search, undef, $timeout); - if (!$base || !$body) { - $body = undef; - return; - } - - $body =~ s/("link")/\001$1/gs; - my @chunks = split(/\001/, $body); - shift @chunks; - my @urls = (); - foreach (@chunks) { - s/\\//gs; - my ($url) = m/"link":\s*"(.*?)"/s; - my ($img) = m/"standard_resolution":\{"url":\s*"(.*?)"/s; - ($img) = m/"url":\s*"(.*?)"/s unless $url; - next unless ($url && $img); - push @urls, [ $url, $img ]; - } - - if ($#urls < 0) { - LOG ($verbose_load, "no images on $last_search"); - return (); - } - - my $i = int(rand($#urls+1)); - my ($url, $img) = @{$urls[$i]}; - - LOG ($verbose_load, "picked image " .($i+1) . "/" . ($#urls+1) . ": $url"); - return ($url, $img); -} - - -############################################################################ -# -# Pick images from Imgur. -# -############################################################################ - -my $imgur_base = 'http://imgur.com/search?qs=thumb&q_any='; - -sub pick_from_imgur($) { - my $timeout = shift; - - my $words = random_words('%20'); - $last_search = $imgur_base . $words; - - $_ = $words; - s/%20/ /g; - - print STDERR "\n\n" if ($verbose_load); - LOG ($verbose_load, "words: $_"); - LOG ($verbose_load, "URL: $last_search"); - - $suppress_audit = 1; - - my ( $base, $body ) = get_document ($last_search, undef, $timeout); - if (!$base || !$body) { - $body = undef; - return; - } - - my @imgs = ($body =~ m@\bHREF=[\"\']([^\'\"<>]*/gallery/[^\'\"<>]+)@gsi); - return () unless @imgs; - - my $n = @imgs; - my $i = int(rand($n)); - my $page = $imgs[$i]; - $page =~ s/[?&].*$//s; - $page = "http://imgur.com$page" if ($page =~ m@^/@s); - - my ($id) = ($page =~ m@([^/?&]+)$@s); - my $img = "http://i.imgur.com/$id.jpg"; - - LOG ($verbose_load, "picked image " .($i+1) . "/$n: $img"); - - return ($page, $img); -} - - -############################################################################ -# -# Pick images from Tumblr. -# -############################################################################ - -my $tumblr_base = 'https://www.tumblr.com/search/'; - -sub pick_from_tumblr($) { - my $timeout = shift; - - # Tumblr doesn't have an "or" search, which means our vocabulary is - # a bit too extensive to work well... - - my $words = random_word(); - $last_search = $tumblr_base . $words; - - print STDERR "\n\n" if ($verbose_load); - LOG ($verbose_load, "words: $words"); - LOG ($verbose_load, "URL: $last_search"); - - $suppress_audit = 1; - - my ( $base, $body ) = get_document ($last_search, undef, $timeout); - if (!$base || !$body) { - $body = undef; - return; - } - - my @imgs0 = ($body =~ m@<IMG\b([^<>]*)>@gsi); - return () unless @imgs0; - my @imgs; - foreach my $img (@imgs0) { - my ($src) = ($img =~ m@\bsrc=[\"\'](.*?)[\"\']@si); - my ($href) = ($img =~ m@\bdata-pin-url=[\"\'](.*?)[\"\']@si); - next unless ($src && $href); - next if ($src =~ m/^data:/s); - foreach ($src, $href) { $_ = "http://www.tumblr.com$_" if (m@^/@s); } - push @imgs, [$href, $src]; - } - return () unless @imgs; - - my $n = @imgs; - my $i = int(rand($n)); - my $page = $imgs[$i]->[0]; - my $img = $imgs[$i]->[1]; - - LOG ($verbose_load, "picked image " .($i+1) . "/$n: $img"); - - return ($page, $img); -} - - -############################################################################ -# -# Pick images by waiting for driftnet to populate a temp dir with files. -# Requires driftnet version 0.1.5 or later. -# (Driftnet is a program by Chris Lightfoot that sniffs your local ethernet -# for images being downloaded by others.) -# Driftnet/webcollage integration by jwz. -# -############################################################################ - -# driftnet -sub pick_from_driftnet($) { - my ($timeout) = @_; - - my $id = $driftnet_magic; - my $dir = $driftnet_dir; - my $start = time; - my $now; - - error ("\$driftnet_dir unset?") unless ($dir); - $dir =~ s@/+$@@; - - error ("$dir unreadable") unless (-d "$dir/."); - - $timeout = $http_timeout unless ($timeout); - $last_search = $id; - - while ($now = time, $now < $start + $timeout) { - opendir (my $dir, $dir) || error ("$dir: $!"); - while (my $file = readdir($dir)) { - next if ($file =~ m/^\./); - $file = "$dir/$file"; - closedir ($dir); - LOG ($verbose_load, "picked file $file ($id)"); - return ($id, $file); - } - closedir ($dir); - } - LOG (($verbose_net || $verbose_load), "timed out for $id"); - return (); -} - - -sub get_driftnet_file($) { - my ($file) = @_; - - error ("\$driftnet_dir unset?") unless ($driftnet_dir); - - my $id = $driftnet_magic; - error ("$id: $file not in $driftnet_dir?") - unless ($file =~ m@^\Q$driftnet_dir@o); - - open (my $in, '<', $file) || error ("$id: $file: $!"); - my $body = ''; - local $/ = undef; # read entire file - $body = <$in>; - close ($in) || error ("$id: $file: $!"); - unlink ($file) || error ("$id: $file: rm: $!"); - return ($id, $body); -} - - -sub spawn_driftnet($) { - my ($cmd) = @_; - - # make a directory to use. - while (1) { - my $tmp = $ENV{TEMPDIR} || "/tmp"; - $driftnet_dir = sprintf ("$tmp/driftcollage-%08x", rand(0xffffffff)); - LOG ($verbose_exec, "mkdir $driftnet_dir"); - last if mkdir ($driftnet_dir, 0700); - } - - if (! ($cmd =~ m/\s/)) { - # if the command didn't have any arguments in it, then it must be just - # a pointer to the executable. Append the default args to it. - my $dargs = $default_driftnet_cmd; - $dargs =~ s/^[^\s]+//; - $cmd .= $dargs; - } - - # point the driftnet command at our newly-minted private directory. - # - $cmd .= " -d $driftnet_dir"; - $cmd .= ">/dev/null" unless ($verbose_exec); - - my $pid = fork(); - if ($pid < 0) { error ("fork: $!\n"); } - if ($pid) { - # parent fork - push @pids_to_kill, $pid; - LOG ($verbose_exec, "forked for \"$cmd\""); - } else { - # child fork - nontrapping_system ($cmd) || error ("exec: $!"); - } - - # wait a bit, then make sure the process actually started up. - # - sleep (1); - error ("pid $pid failed to start \"$cmd\"") - unless (1 == kill (0, $pid)); -} - -# local-directory -sub pick_from_local_dir($) { - my ($timeout) = @_; - - my $id = $local_magic; - $last_search = $id; - - my $dir = $local_dir; - error ("\$local_dir unset?") unless ($dir); - $dir =~ s@/+$@@; - - error ("$dir unreadable") unless (-d "$dir/."); - - my $v = ($verbose_exec ? "-v" : ""); - my $pick = `xscreensaver-getimage-file $v "$dir"`; - $pick =~ s/\s+$//s; - $pick = "$dir/$pick" unless ($pick =~ m@^/@s); # relative path - - LOG ($verbose_load, "picked file $pick ($id)"); - return ($id, $pick); -} - - -sub get_local_file($) { - my ($file) = @_; - - error ("\$local_dir unset?") unless ($local_dir); - - my $id = $local_magic; - error ("$id: $file not in $local_dir?") - unless ($file =~ m@^\Q$local_dir@o); - - open (my $in, '<:raw', $file) || error ("$id: $file: $!"); - local $/ = undef; # read entire file - my $body = <$in>; - close ($in) || error ("$id: $file: $!"); - return ($id, $body); -} - - - -############################################################################ -# -# Pick a random image in a random way -# -############################################################################ - - -# Picks a random image on a random page, and returns two URLs: -# the page containing the image, and the image. -# Returns () if nothing found this time. -# - -sub pick_image(;$) { - my ($timeout) = @_; - - $current_state = "select"; - $load_method = "none"; - - my $n = int(rand(100)); - my $fn = undef; - my $total = 0; - my @rest = @search_methods; - - while (@rest) { - my $pct = shift @rest; - my $name = shift @rest; - my $tfn = shift @rest; - $total += $pct; - if ($total > $n && !defined($fn)) { - $fn = $tfn; - $current_state = $name; - $load_method = $current_state; - } - } - - if ($total != 100) { - error ("internal error: \@search_methods totals to $total%!"); - } - - record_attempt ($current_state); - return $fn->($timeout); -} - - - -############################################################################ -# -# Statistics and logging -# -############################################################################ - -sub timestr() { - return strftime ("%H:%M:%S: ", localtime); -} - -sub blurb() { - return "$progname: " . timestr() . "$current_state: "; -} - -sub error($) { - my ($err) = @_; - print STDERR blurb() . "$err\n"; - 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 = ""; - -sub clearlog() { - $lastlog = ""; -} - -sub showlog() { - my $head = "$progname: DEBUG: "; - foreach (split (/\n/, $lastlog)) { - print STDERR "$head$_\n"; - } - $lastlog = ""; -} - -sub LOG($$) { - my ($print, $msg) = @_; - my $blurb = timestr() . "$current_state: "; - $lastlog .= "$blurb$msg\n"; - print STDERR "$progname: $blurb$msg\n" if $print; -} - - -my %stats_attempts; -my %stats_successes; -my %stats_elapsed; - -my $last_state = undef; -sub record_attempt($) { - my ($name) = @_; - - if ($last_state) { - record_failure($last_state) unless ($image_succeeded > 0); - } - $last_state = $name; - - clearlog(); - report_performance(); - - start_timer($name); - $image_succeeded = 0; - $suppress_audit = 0; -} - -sub record_success($$$) { - my ($name, $url, $base) = @_; - if (defined($stats_successes{$name})) { - $stats_successes{$name}++; - } else { - $stats_successes{$name} = 1; - } - - stop_timer ($name, 1); - my $o = $current_state; - $current_state = $name; - save_recent_url ($url, $base); - $current_state = $o; - $image_succeeded = 1; - clearlog(); -} - - -sub record_failure($) { - my ($name) = @_; - - return if $image_succeeded; - - stop_timer ($name, 0); - if ($verbose_load && !$verbose_exec) { - - if ($suppress_audit) { - print STDERR "$progname: " . timestr() . "(audit log suppressed)\n"; - return; - } - - my $o = $current_state; - $current_state = "DEBUG"; - - my $line = "#" x 78; - print STDERR "\n\n\n"; - print STDERR ("#" x 78) . "\n"; - print STDERR blurb() . "failed to get an image. Full audit log:\n"; - print STDERR "\n"; - showlog(); - print STDERR ("-" x 78) . "\n"; - print STDERR "\n\n"; - - $current_state = $o; - } - $image_succeeded = 0; -} - - - -sub stats_of($) { - my ($name) = @_; - my $i = $stats_successes{$name}; - my $j = $stats_attempts{$name}; - $i = 0 unless $i; - $j = 0 unless $j; - return "" . ($j ? int($i * 100 / $j) : "0") . "%"; -} - - -my $current_start_time = 0; - -sub start_timer($) { - my ($name) = @_; - $current_start_time = time; - - if (defined($stats_attempts{$name})) { - $stats_attempts{$name}++; - } else { - $stats_attempts{$name} = 1; - } - if (!defined($stats_elapsed{$name})) { - $stats_elapsed{$name} = 0; - } -} - -sub stop_timer($$) { - my ($name, $success) = @_; - $stats_elapsed{$name} += time - $current_start_time; -} - - -my $last_report_time = 0; -sub report_performance() { - - return unless $verbose_warnings; - - my $now = time; - return unless ($now >= $last_report_time + $report_performance_interval); - my $ot = $last_report_time; - $last_report_time = $now; - - return if ($ot == 0); - - my $blurb = "$progname: " . timestr(); - - print STDERR "\n"; - print STDERR "${blurb}Current standings:\n"; - - foreach my $name (sort keys (%stats_attempts)) { - my $try = $stats_attempts{$name}; - my $suc = $stats_successes{$name} || 0; - my $pct = int($suc * 100 / $try); - my $secs = $stats_elapsed{$name}; - my $secs_link = $secs / $try; - print STDERR sprintf ("$blurb %-14s %4s (%d/%d);" . - " \t %.1f secs/link\n", - "$name:", "$pct%", $suc, $try, $secs_link); - } -} - - - -my $max_recent_images = 400; -my $max_recent_sites = 20; -my @recent_images = (); -my @recent_sites = (); - -sub save_recent_url($$) { - my ($url, $base) = @_; - - return unless ($verbose_warnings); - - $_ = $url; - my ($site) = m@^https?://([^ \t\n\r/:]+)@; - return unless defined ($site); - - if ($base eq $driftnet_magic || $base eq $local_magic) { - $site = $base; - @recent_images = (); - } - - my $done = 0; - foreach (@recent_images) { - if ($_ eq $url) { - print STDERR blurb() . "WARNING: recently-duplicated image: $url" . - " (on $base via $last_search)\n"; - $done = 1; - last; - } - } - - # suppress "duplicate site" warning via %warningless_sites. - # - if ($warningless_sites{$site}) { - $done = 1; - } elsif ($site =~ m@([^.]+\.[^.]+\.[^.]+)$@ && - $warningless_sites{$1}) { - $done = 1; - } elsif ($site =~ m@([^.]+\.[^.]+)$@ && - $warningless_sites{$1}) { - $done = 1; - } - - if (!$done) { - foreach (@recent_sites) { - if ($_ eq $site) { - print STDERR blurb() . "WARNING: recently-duplicated site: $site" . - " ($url on $base via $last_search)\n"; - last; - } - } - } - - push @recent_images, $url; - push @recent_sites, $site; - shift @recent_images if ($#recent_images >= $max_recent_images); - shift @recent_sites if ($#recent_sites >= $max_recent_sites); -} - - - -############################################################################## -# -# other utilities -# -############################################################################## - -# Does %-decoding. -# -sub url_decode($) { - ($_) = @_; - tr/+/ /; - s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg; - return $_; -} - - -# Given the raw body of a GIF document, returns the dimensions of the image. -# -sub gif_size($) { - my ($body) = @_; - my $type = substr($body, 0, 6); - my $s; - return () unless ($type =~ /GIF8[7,9]a/); - $s = substr ($body, 6, 10); - my ($a,$b,$c,$d) = unpack ("C"x4, $s); - return () unless defined ($d); - return (($b<<8|$a), ($d<<8|$c)); -} - -# Given the raw body of a JPEG document, returns the dimensions of the image. -# -sub jpeg_size($) { - my ($body) = @_; - my $i = 0; - my $L = length($body); - - my $c1 = substr($body, $i, 1); $i++; - my $c2 = substr($body, $i, 1); $i++; - return () unless (ord($c1) == 0xFF && ord($c2) == 0xD8); - - my $ch = "0"; - while (ord($ch) != 0xDA && $i < $L) { - # Find next marker, beginning with 0xFF. - while (ord($ch) != 0xFF) { - return () if (length($body) <= $i); - $ch = substr($body, $i, 1); $i++; - } - # markers can be padded with any number of 0xFF. - while (ord($ch) == 0xFF) { - return () if (length($body) <= $i); - $ch = substr($body, $i, 1); $i++; - } - - # $ch contains the value of the marker. - my $marker = ord($ch); - - if (($marker >= 0xC0) && - ($marker <= 0xCF) && - ($marker != 0xC4) && - ($marker != 0xCC)) { # it's a SOFn marker - $i += 3; - return () if (length($body) <= $i); - my $s = substr($body, $i, 4); $i += 4; - my ($a,$b,$c,$d) = unpack("C"x4, $s); - return (($c<<8|$d), ($a<<8|$b)); - - } else { - # We must skip variables, since FFs in variable names aren't - # valid JPEG markers. - return () if (length($body) <= $i); - my $s = substr($body, $i, 2); $i += 2; - my ($c1, $c2) = unpack ("C"x2, $s); - my $length = ($c1 << 8) | $c2; - return () if ($length < 2); - $i += $length-2; - } - } - return (); -} - -# Given the raw body of a PNG document, returns the dimensions of the image. -# -sub png_size($) { - 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, $h); -} - - -# Given the raw body of a PNM document, returns the dimensions of the image. -# -sub pnm_size($) { - my ($body) = @_; - return () unless ($body =~ m/^P[1-6]\r?\n(\d+) +(\d+)\r?\n/s); - return ($1, $2); -} - - -# Given the raw body of a GIF, JPEG, or PNG document, returns the dimensions -# of the image. -# -sub image_size($) { - my ($body) = @_; - my ($w, $h) = gif_size ($body); - if ($w && $h) { return ($w, $h); } - ($w, $h) = jpeg_size ($body); - if ($w && $h) { return ($w, $h); } - return png_size ($body); - if ($w && $h) { return ($w, $h); } - return pnm_size ($body); -} - - -# returns the full path of the named program, or undef. -# -sub which($) { - my ($prog) = @_; - foreach (split (/:/, $ENV{PATH})) { - my $path = "$_/$prog"; - if (-x $path) { - return $path; - } - } - return undef; -} - - -# Like rand(), but chooses numbers with a bell curve distribution. -sub bellrand(;$) { - ($_) = @_; - $_ = 1.0 unless defined($_); - $_ /= 3.0; - return (rand($_) + rand($_) + rand($_)); -} - - -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 || $verbose_warnings); - exit 1; -} - - - -############################################################################## -# -# Generating a list of urls only -# -############################################################################## - -sub url_only_output() { - do { - my ($base, $img) = pick_image; - if ($img) { - $base =~ s/ /%20/g; - $img =~ s/ /%20/g; - print "$img $base\n"; - } - } while (1); -} - -############################################################################## -# -# Running as an xscreensaver module, or as a web page imagemap -# -############################################################################## - -my ($image_png, $image_tmp1, $image_tmp2); -{ - my $seed = rand(0xFFFFFFFF); - $image_png = sprintf ("%s/webcollage-%08x", - ($ENV{TMPDIR} ? $ENV{TMPDIR} : "/tmp"), - $seed); - $image_tmp1 = $image_png . '-1.png'; - $image_tmp2 = $image_png . '-2.png'; - $image_png .= '.png'; -} - - -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; - -my $delay = 2; - -sub x_cleanup() { - unlink $image_png, $image_tmp1, $image_tmp2; - unlink $imagemap_html_tmp, $imagemap_jpg_tmp - if (defined ($imagemap_html_tmp)); -} - - -# Like system, but prints status about exit codes, and kills this process -# with whatever signal killed the sub-process, if any. -# -sub nontrapping_system(@) { - $! = 0; - - $_ = join(" ", @_); - s/\"[^\"]+\"/\"...\"/g; - - LOG ($verbose_exec, "executing \"$_\""); - - my $rc = system @_; - - if ($rc == 0) { - LOG ($verbose_exec, "subproc exited normally."); - } elsif (($rc & 0xff) == 0) { - $rc >>= 8; - LOG ($verbose_exec, "subproc exited with status $rc."); - } else { - if ($rc & 0x80) { - LOG ($verbose_exec, "subproc dumped core."); - $rc &= ~0x80; - } - LOG ($verbose_exec, "subproc died with signal $rc."); - # die that way ourselves. - kill $rc, $$; - } - - return $rc; -} - - -# Creates a solid-colored PNG. -# -sub pngmake($$$$) { - my ($outfile, $bgcolor, $w, $h) = @_; - - my @cmd; - if ($webcollage_helper) { - @cmd = ($webcollage_helper, $bgcolor, $w, $h, $outfile); - } else { - @cmd = ($convert_cmd, '-size', "${w}x${h}", "xc:$bgcolor", $outfile); - } - - my $rc = nontrapping_system (@cmd); - if ($rc != 0) { - LOG(0, "failed to create $bgcolor image: \"$outfile\""); - exit(1); - } -} - - -sub pick_root_displayer() { - my @names = (); - - if ($cocoa_p) { - # see "xscreensaver/hacks/webcollage-cocoa.m" - return "echo COCOA LOAD "; - } - - foreach my $cmd (@root_displayers) { - $_ = $cmd; - my ($name) = m/^([^ ]+)/; - push @names, "\"$name\""; - LOG ($verbose_exec, "looking for $name..."); - foreach my $dir (split (/:/, $ENV{PATH})) { - LOG ($verbose_exec, " checking $dir/$name"); - return $cmd if (-x "$dir/$name"); - } - } - - $names[$#names] = "or " . $names[$#names]; - error "none of: " . join (", ", @names) . " were found on \$PATH."; -} - - -my $png_to_root_window_cmd = undef; - - -sub x_or_image_output($) { - my ($window_id) = @_; - - # Adjust the PATH for OS X 10.10. - # - $_ = $0; - s:/[^/]*$::; - s/([^a-zA-Z0-9._\-+\/])/\\$1/g; - $ENV{PATH} = "$_:$ENV{PATH}"; - - # Check for our helper program, to see whether we need to use imagemagick. - # - $_ = "webcollage-helper"; - - if (! defined ($webcollage_helper)) { - $webcollage_helper = which ($_); - } - - if (defined ($webcollage_helper)) { - LOG ($verbose_decode, "found \"$webcollage_helper\""); - } else { - LOG (($verbose_decode || $verbose_load), "no $_ program"); - } - - if ($cocoa_p && !defined ($webcollage_helper)) { - error ("webcollage-helper not found in Cocoa-mode!"); - } - - if (!$cocoa_p && defined ($webcollage_helper)) { - foreach ($image_png, $image_tmp1, $image_tmp2) { - s/\.png$/.jpg/si; - } - } - - # make sure the various programs we execute exist, right up front. - # - my @progs = (); - - push @progs, $convert_cmd unless defined($webcollage_helper); - - foreach (@progs) { - which ($_) || error "$_ not found on \$PATH."; - } - - # find a root-window displayer program. - # - if (!$no_output_p) { - $png_to_root_window_cmd = pick_root_displayer(); - } - - if (defined ($window_id)) { - error ("-window-id only works if xscreensaver-getimage is installed") - unless ($png_to_root_window_cmd =~ m/^xscreensaver-getimage\b/); - - error ("unparsable window id: $window_id") - unless ($window_id =~ m/^\d+$|^0x[\da-f]+$/i); - $png_to_root_window_cmd =~ s/--?root\b/$window_id/ || - error ("unable to munge displayer: $png_to_root_window_cmd"); - } - - if (!$img_width || !$img_height) { - - 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."; - } - } - } - - my $bgcolor = "#000000"; - my $bgimage = undef; - - if ($background) { - if ($background =~ m/^\#[0-9a-f]+$/i) { - $bgcolor = $background; - - } elsif (-r $background) { - $bgimage = $background; - - } elsif (! $background =~ m@^[-a-z0-9 ]+$@i) { - error "not a color or readable file: $background"; - - } else { - # default to assuming it's a color - $bgcolor = $background; - } - } - - # Create the sold-colored base image. - # - LOG ($verbose_decode, "creating base image: ${img_width}x${img_height}"); - $_ = pngmake ($image_png, $bgcolor, $img_width, $img_height); - - # Paste the default background image in the middle of it. - # - if ($bgimage) { - open (my $in, '<:raw', $bgimage) || error ("$bgimage: $!"); - local $/ = undef; # read entire file - my $body = <$in>; - close ($in) || error ("$bgimage: $!"); - paste_image ('init', $image_png, $body, 'init', 1); - } - - clearlog(); - - while (1) { - my ($base, $img) = pick_image(); - my $source = $current_state; - $current_state = "loadimage"; - if ($img) { - my ($headers, $body) = get_document ($img, $base); - if ($body) { - paste_image ($base, $img, $body, $source); - $body = undef; - } - } - $current_state = "idle"; - $load_method = "none"; - - unlink $image_tmp1, $image_tmp2; - sleep $delay; - } -} - -sub paste_image($$$$;$) { - my ($base, $img, $body, $source, $init_p) = @_; - - $current_state = "paste"; - - $suppress_audit = 0; - - LOG ($verbose_decode, "got $img (" . length($body) . ")"); - - my ($iw, $ih) = image_size ($body); - if (!$iw || !$ih) { - LOG (($verbose_decode || $verbose_load), - "not a GIF, JPG, or PNG" . - (($body =~ m@<(base|html|head|body|script|table|a href)>@i) - ? " (looks like HTML)" : "") . - ": $img"); - $suppress_audit = 1; - $body = undef; - return 0; - } - - if ($iw <= 0 || $ih <= 0 || $iw > 9999 || $ih > 9999) { - LOG (($verbose_decode || $verbose_load), - "ludicrous image dimensions: $iw x $ih (" . length($body) . - "): $img"); - $body = undef; - return 0; - } - - open (my $out, '>:raw', $image_tmp1) || error ("writing $image_tmp1: $!"); - (print $out $body) || error ("writing $image_tmp1: $!"); - close ($out) || error ("writing $image_tmp1: $!"); - - record_success ($load_method, $img, $base); - - my $ow = $iw; # used only for error messages - my $oh = $ih; - - # don't just tack this onto the front of the pipeline -- we want it to - # be able to change the size of the input image. - # - if ($filter_cmd && !$init_p) { - LOG ($verbose_decode, "running $filter_cmd"); - - # #### Historically, $filter_cmd read and write PPM files. - # This is doing PNG or JPEG now. I'll bet nobody uses this. - - my $rc = nontrapping_system "($filter_cmd) < $image_tmp1 >$image_tmp2"; - if ($rc != 0) { - LOG(($verbose_decode || $verbose_load), - "failed command: \"$filter_cmd\""); - LOG(($verbose_decode || $verbose_load), - "failed URL: \"$img\" (${ow}x$oh)"); - return; - } - rename ($image_tmp2, $image_tmp1); - - # re-get the width/height in case the filter resized it. - open (my $imgf, '<:raw', $image_tmp1) || return 0; - my $b = ''; - sysread ($imgf, $b, 10240); - close $imgf; - ($iw, $ih) = image_size ($b); - return 0 unless ($iw && $ih); - } - - my $target_w = $img_width; # max rectangle into which the image must fit - my $target_h = $img_height; - - my $scale = 1.0; - - my $crop_x = 0; # the sub-rectangle of the image - my $crop_y = 0; # that we will actually paste. - my $crop_w = $iw; - my $crop_h = $ih; - my $x = 0; - my $y = 0; - - if (!$init_p) { - - # Usually scale the image to fit on the screen -- but sometimes scale it - # 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; } # 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_decode, "scaling ${ow}x${oh} to ${iw}x$ih" . - " would have been bogus."); - return 0; - } - - $crop_w = $iw; - $crop_h = $ih; - - LOG ($verbose_decode, "scaling ${ow}x${oh} to ${iw}x$ih ($scale)"); - } - - - my $src = $image_tmp1; - - # The chance that we will randomly crop out a section of an image starts - # out fairly low, but goes up for images that are very large, or images - # that have ratios that make them look like banners (we try to avoid - # banner images entirely, but they slip through when the IMG tags didn't - # have WIDTH and HEIGHT specified.) - # - my $crop_chance = 0.2; - if ($iw > $img_width * 0.4 || $ih > $img_height * 0.4) { - $crop_chance += 0.2; - } - if ($iw > $img_width * 0.7 || $ih > $img_height * 0.7) { - $crop_chance += 0.2; - } - if ($min_ratio && ($iw * $min_ratio) > $ih) { - $crop_chance += 0.7; - } - - if ($crop_chance > 0.1) { - LOG ($verbose_decode, "crop chance: $crop_chance"); - } - - if (rand() < $crop_chance) { - - my $ow = $crop_w; - my $oh = $crop_h; - - if ($crop_w > $min_width) { - # if it's a banner, select the width linearly. - # otherwise, select a bell. - my $r = (($min_ratio && ($iw * $min_ratio) > $ih) - ? rand() - : bellrand()); - $crop_w = $min_width + int ($r * ($crop_w - $min_width)); - $crop_x = int (rand() * ($ow - $crop_w)); - } - if ($crop_h > $min_height) { - # height always selects as a bell. - $crop_h = $min_height + int (bellrand() * ($crop_h - $min_height)); - $crop_y = int (rand() * ($oh - $crop_h)); - } - - # Clip it to the actual post-scaling image size. - if ($crop_x + $crop_w > $iw) { $crop_w = $iw - $crop_x; } - if ($crop_y + $crop_h > $ih) { $crop_h = $ih - $crop_y; } - if ($crop_x < 0) { $crop_w += $crop_x; $crop_x = 0; } - if ($crop_y < 0) { $crop_h += $crop_y; $crop_y = 0; } - - if ($crop_x != 0 || $crop_y != 0 || - $crop_w != $iw || $crop_h != $ih) { - LOG ($verbose_decode, - "randomly cropping to ${crop_w}x$crop_h \@ $crop_x,$crop_y"); - } - } - - # Where the image should logically land -- this might be negative. - # - $x = int((rand() * ($img_width + $crop_w/2)) - $crop_w*3/4); - $y = int((rand() * ($img_height + $crop_h/2)) - $crop_h*3/4); - - # if we have chosen to paste the image outside of the rectangle of the - # screen, then we need to crop it. - # - if ($x < 0 || - $y < 0 || - $x + $crop_w > $img_width || - $y + $crop_h > $img_height) { - - LOG ($verbose_decode, - "cropping for effective paste of ${crop_w}x${crop_h} \@ $x,$y"); - - if ($x < 0) { $crop_x -= $x; $crop_w += $x; $x = 0; } - if ($y < 0) { $crop_y -= $y; $crop_h += $y; $y = 0; } - - if ($x + $crop_w >= $img_width) { $crop_w = $img_width - $x - 1; } - if ($y + $crop_h >= $img_height) { $crop_h = $img_height - $y - 1; } - } - - # If any cropping needs to happen, add pnmcut. - # - if ($crop_x != 0 || $crop_y != 0 || - $crop_w != $iw || $crop_h != $ih) { - $iw = $crop_w; - $ih = $crop_h; - LOG ($verbose_decode, "cropping to ${crop_w}x$crop_h \@ " . - "$crop_x,$crop_y"); - } - - LOG ($verbose_decode, "pasting ${iw}x$ih \@ $x,$y in $image_png"); - } - - my @cmd; - if (defined ($webcollage_helper)) { - @cmd = ($webcollage_helper, - $image_tmp1, $image_png, - $scale, $opacity, - $crop_x, $crop_y, $x, $y, - $iw, $ih); - } else { - @cmd = ($convert_cmd, - $image_png, - '(', - $image_tmp1 . '[0]', - '-scale', sprintf("%.2f%%", 100 * $scale), - '-crop', "${iw}x${ih}+${crop_x}+${crop_y}", - '-geometry', "+${x}+${y}", - - ($init_p ? () : - ( - # Blurry edges with rounded corners - '-alpha', 'set', - '-virtual-pixel', 'transparent', - '-channel', 'A', - '-blur', '0x12', - '-level', '50%,100%', - - # Overall transparency - '-evaluate', 'multiply', $opacity, - - '+channel', - )), - ')', - '-composite', - '+repage', - '-strip', - $image_png); - } - - #### $verbose_decode should mean 2>/dev/null - - my $rc = nontrapping_system (@cmd); - - if (-z $image_png) { - LOG (1, "failed command: \"@cmd\""); - print STDERR "\naudit log:\n\n\n"; - print STDERR ("#" x 78) . "\n"; - print STDERR blurb() . "$image_png has zero size\n"; - showlog(); - print STDERR "\n\n"; - exit (1); - } - - if ($rc != 0) { - LOG (($verbose_decode || $verbose_load), "failed command: \"@cmd\""); - LOG (($verbose_decode || $verbose_load), - "failed URL: \"$img\" (${ow}x$oh)"); - return; - } - - my $target = "$image_png"; - - # don't just tack this onto the end of the pipeline -- we don't want it - # to end up in $image_png, because we don't want the results to be - # cumulative. - # - if ($post_filter_cmd) { - - # #### Historically, $post_filter_cmd read and write PPM files. - # This is doing PNG or JPEG now. I'll bet nobody uses this. - - $target = $image_tmp1; - my $cmd = "($post_filter_cmd) < $image_png > $target"; - $rc = nontrapping_system ($cmd); - if ($rc != 0) { - LOG ($verbose_decode, "filter failed: \"$post_filter_cmd\"\n"); - return; - } - } - - if (!$no_output_p) { - my $tsize = (stat($target))[7]; - if ($tsize > 200) { - my $cmd = "$png_to_root_window_cmd $target"; - - # xv seems to hate being killed. it tends to forget to clean - # up after itself, and leaves windows around and colors allocated. - # I had this same problem with vidwhacker, and I'm not entirely - # sure what I did to fix it. But, let's try this: launch xv - # in the background, so that killing this process doesn't kill it. - # it will die of its own accord soon enough. So this means we - # start pumping bits to the root window in parallel with starting - # the next network retrieval, which is probably a better thing - # to do anyway. - # - $cmd .= " &" unless ($cocoa_p); - - $rc = nontrapping_system ($cmd); - - if ($rc != 0) { - LOG (($verbose_decode || $verbose_load), "display failed: \"$cmd\""); - return; - } - - } else { - LOG ($verbose_decode, "$target size is $tsize"); - } - } - - if (defined($source)) { - $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_png, $img_width, $img_height); - } - } - - clearlog(); - - return 1; -} - - -sub update_imagemap($$$$$$$$) { - my ($url, $x, $y, $w, $h, $image_png, $image_width, $image_height) = @_; - - $current_state = "imagemap"; - - my $max_areas = 200; - - $url = html_quote ($url); - push @imagemap_areas, [$x, $y, $w, $h, $url]; - shift @imagemap_areas if (@imagemap_areas > $max_areas); - LOG ($verbose_decode, "area: $x,$y,$w,$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"; - my $imagemap_jpg2 = $imagemap_jpg; - $imagemap_jpg2 =~ s@^.*/@@gs; - - 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 = ''; - { - if (open (my $in, '<', $imagemap_html)) { - local $/ = undef; # read entire file - $template_html = <$in>; - close $in; - LOG ($verbose_decode, "read template $imagemap_html"); - } - - if (! ($template_html =~ m/\.webcollage_box\b/s)) { # missing or old - $template_html = - '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" - "http://www.w3.org/TR/html4/loose.dtd"> -<HTML> - <HEAD> - <BASE TARGET="_new"> - <meta HTTP-EQUIV="Refresh" content="60" /> - <TITLE>WebCollage</TITLE> - <STYLE TYPE="text/css"> - <!-- - body { color: #FFF; max-width: 100%; } - .webcollage_date, .webcollage_size { - display: block; margin-top: 4px; font-size: 7pt; color: #888; - } - .webcollage_date { float: left; } - .webcollage_size { float: right; } - - .webcollage_frame { - overflow: hidden; - position: relative; - padding-bottom: 56.25%; - padding-bottom: 75%; /* 4:3 aspect ratio */ - border: 1px solid #888; - background: #000; - } - - .webcollage_box { - position: absolute; top: 0; left: 0; - border: 0; margin: 0; padding: 0; - width: 100%; - height: 100%; - } - - .webcollage_box > img { width: 100%; height: 100%; border: 0; } - - .webcollage_frame > a { - display: block; - position: absolute; - border-radius: 16px; - } - - .webcollage_frame > a:hover { - background: rgba(1,1,1,.25); - } - --> - </STYLE> - </HEAD> - <BODY> - <DIV CLASS="webcollage_frame"> - <DIV CLASS="webcollage_box"></DIV> - </DIV> - </BODY> -</HTML> -'; - - LOG ($verbose_decode, "created dummy template"); - } - } - - # Write the jpg to a tmp file - # - { - my @cmd; - if (defined($webcollage_helper)) { - @cmd = ('cp', '-p', $image_png, $imagemap_jpg_tmp); - } else { - @cmd = ($convert_cmd, $image_png, 'jpeg:' . $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 $img = (" <DIV CLASS=\"webcollage_box\">" . - "<IMG SRC=\"$imagemap_jpg2\">" . - "</DIV>\n"); - foreach my $a (@imagemap_areas) { - my ($x, $y, $w, $h, $u) = @$a; - $x /= $img_width / 100; - $y /= $img_height / 100; - $w /= $img_width / 100; - $h /= $img_height / 100; - foreach ($x, $y, $w, $h) { $_ = sprintf("%.1f%%", $_); } - $u = html_quote($u); - $img .= (" <A HREF=\"$u\" STYLE=\"" . - "left:$x;top:$y;width:$w;height:$h\"/>\n"); - } - - $img = ("<DIV CLASS=\"webcollage_frame\">\n" . - $img . - " </DIV>\n"); - $body =~ s@<DIV \s+ CLASS=[\"\']webcollage_frame[\"\']> - .*? </DIV> .*? </DIV>@$img@sex || - error ("$imagemap_html_tmp: unable to splice image"); - - - # 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; - } - - open (my $out, '>', $imagemap_html_tmp) || error("$imagemap_html_tmp: $!"); - (print $out $body) || error("$imagemap_html_tmp: $!"); - close ($out) || error("$imagemap_html_tmp: $!"); - LOG ($verbose_decode, "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_decode, "wrote $imagemap_html"); - - if ($imagemap_jpg_tmp ne $image_png) { - rename ($imagemap_jpg_tmp, $imagemap_jpg) || - error "renaming $imagemap_jpg_tmp to $imagemap_jpg"; - LOG ($verbose_decode, "wrote $imagemap_jpg"); - } -} - - -# Figure out what the proxy server should be, either from environment -# variables or by parsing the output of the (MacOS) program "scutil", -# which tells us what the system-wide proxy settings are. -# -sub set_proxy() { - - if (! defined($http_proxy)) { - # historical suckage: the environment variable name is lower case. - $http_proxy = $ENV{http_proxy} || $ENV{HTTP_PROXY}; - } - - if (defined ($http_proxy)) { - if ($http_proxy && $http_proxy =~ m@^https?://([^/]*)/?$@ ) { - # historical suckage: allow "http://host:port" as well as "host:port". - $http_proxy = $1; - } - - } else { - my $proxy_data = `scutil --proxy 2>/dev/null`; - my ($server) = ($proxy_data =~ m/\bHTTPProxy\s*:\s*([^\s]+)/s); - my ($port) = ($proxy_data =~ m/\bHTTPPort\s*:\s*([^\s]+)/s); - # Note: this ignores the "ExceptionsList". - if ($server) { - $http_proxy = $server; - $http_proxy .= ":$port" if $port; - } - } - - delete $ENV{http_proxy}; - delete $ENV{HTTP_PROXY}; - delete $ENV{https_proxy}; - delete $ENV{HTTPS_PROXY}; - delete $ENV{PERL_LWP_ENV_PROXY}; - - if ($http_proxy) { - $http_proxy = 'http://' . $http_proxy; - LOG ($verbose_net, "proxy server: $http_proxy"); - } else { - $http_proxy = undef; # for --proxy '' - } -} - - -sub init_signals() { - - $SIG{HUP} = \&signal_cleanup; - $SIG{INT} = \&signal_cleanup; - $SIG{QUIT} = \&signal_cleanup; - $SIG{ABRT} = \&signal_cleanup; - $SIG{KILL} = \&signal_cleanup; - $SIG{TERM} = \&signal_cleanup; - - # Need this so that if subprocess filters die, we don't die. - $SIG{PIPE} = 'IGNORE'; -} - -END { exit_cleanup(); } - - -sub main() { - $| = 1; - srand(time ^ $$); - - my $verbose = 0; - my $dict; - my $driftnet_cmd = 0; - - $current_state = "init"; - $load_method = "none"; - - my $root_p = 0; - my $window_id = undef; - - while ($#ARGV >= 0) { - $_ = shift @ARGV; - if (m/^--?d(i(s(p(l(a(y)?)?)?)?)?)?$/s) { - $ENV{DISPLAY} = shift @ARGV; - } elsif (m/^--?root$/s) { - $root_p = 1; - } elsif (m/^--?window-id$/s) { - $window_id = shift @ARGV; - $root_p = 1; - } elsif (m/^--?no-output$/s) { - $no_output_p = 1; - } elsif (m/^--?urls(-only)?$/s) { - $urls_only_p = 1; - $no_output_p = 1; - } elsif (m/^--?cocoa$/s) { - $cocoa_p = 1; - } elsif (m/^--?imagemap$/s) { - $imagemap_base = shift @ARGV; - $no_output_p = 1; - } elsif (m/^--?verbose$/s) { - $verbose++; - } elsif (m/^-v+$/) { - $verbose += length($_)-1; - } elsif (m/^--?delay$/s) { - $delay = shift @ARGV; - } elsif (m/^--?timeout$/s) { - $http_timeout = shift @ARGV; - } elsif (m/^--?filter$/s) { - $filter_cmd = shift @ARGV; - } elsif (m/^--?filter2$/s) { - $post_filter_cmd = shift @ARGV; - } elsif (m/^--?(background|bg)$/s) { - $background = shift @ARGV; - } elsif (m/^--?size$/s) { - $_ = shift @ARGV; - if (m@^(\d+)x(\d+)$@) { - $img_width = $1; - $img_height = $2; - } else { - error "argument to \"--size\" must be of the form \"640x400\""; - } - } elsif (m/^--?(http-)?proxy$/s) { - $http_proxy = shift @ARGV; - } elsif (m/^--?dict(ionary)?$/s) { - $dict = shift @ARGV; - } elsif (m/^--?opacity$/s) { - $opacity = shift @ARGV; - error ("opacity must be between 0.0 and 1.0") - if ($opacity <= 0 || $opacity > 1); - } elsif (m/^--?driftnet$/s) { - @search_methods = ( 100, "driftnet", \&pick_from_driftnet ); - if (! ($ARGV[0] =~ m/^-/)) { - $driftnet_cmd = shift @ARGV; - } else { - $driftnet_cmd = $default_driftnet_cmd; - } - } elsif (m/^--?dir(ectory)?$/s) { - @search_methods = ( 100, "local", \&pick_from_local_dir ); - if (! ($ARGV[0] =~ m/^-/)) { - $local_dir = shift @ARGV; - } else { - error ("local directory path must be set") - } - } elsif (m/^--?fps$/s) { - # -fps only works on MacOS, via "webcollage-cocoa.m". - # Ignore it if passed to this script in an X11 context. - } elsif (m/^--?debug$/s) { - my $which = shift @ARGV; - my @rest = @search_methods; - my $ok = 0; - while (@rest) { - my $pct = shift @rest; - my $name = shift @rest; - my $tfn = shift @rest; - - if ($name eq $which) { - @search_methods = (100, $name, $tfn); - $ok = 1; - last; - } - } - error "no such search method as \"$which\"" unless ($ok); - LOG (1, "DEBUG: using only \"$which\""); - $report_performance_interval = 30; - - } else { - print STDERR "unknown option: $_\n\n"; - print STDERR "$copyright\nusage: $progname " . - "[--root] [--display dpy] [--verbose] [--debug which]\n" . - "\t\t [--timeout secs] [--delay secs] [--size WxH]\n" . - "\t\t [--no-output] [--urls-only] [--imagemap filename]\n" . - "\t\t [--background color] [--opacity f]\n" . - "\t\t [--filter cmd] [--filter2 cmd]\n" . - "\t\t [--dictionary dictionary-file] [--http-proxy host[:port]]\n" . - "\t\t [--driftnet [driftnet-program-and-args]]\n" . - "\t\t [--directory local-image-directory]\n" . - "\n"; - exit 1; - } - } - - if (!$root_p && !$no_output_p && !$cocoa_p) { - print STDERR $copyright; - error "the --root argument is mandatory (for now.)"; - } - - if (!$no_output_p && !$cocoa_p && !$ENV{DISPLAY}) { - error "\$DISPLAY is not set."; - } - - - if ($verbose == 1) { - $verbose_imgmap = 1; - $verbose_warnings = 1; - - } elsif ($verbose == 2) { - $verbose_imgmap = 1; - $verbose_warnings = 1; - $verbose_load = 1; - - } elsif ($verbose == 3) { - $verbose_imgmap = 1; - $verbose_warnings = 1; - $verbose_load = 1; - $verbose_filter = 1; - - } elsif ($verbose == 4) { - $verbose_imgmap = 1; - $verbose_warnings = 1; - $verbose_load = 1; - $verbose_filter = 1; - $verbose_net = 1; - - } elsif ($verbose == 5) { - $verbose_imgmap = 1; - $verbose_warnings = 1; - $verbose_load = 1; - $verbose_filter = 1; - $verbose_net = 1; - $verbose_decode = 1; - - } elsif ($verbose == 6) { - $verbose_imgmap = 1; - $verbose_warnings = 1; - $verbose_load = 1; - $verbose_filter = 1; - $verbose_net = 1; - $verbose_decode = 1; - $verbose_http = 1; - - } elsif ($verbose >= 7) { - $verbose_imgmap = 1; - $verbose_warnings = 1; - $verbose_load = 1; - $verbose_filter = 1; - $verbose_net = 1; - $verbose_decode = 1; - $verbose_http = 1; - $verbose_exec = 1; - } - - if ($dict) { - error ("$dict does not exist") unless (-f $dict); - $wordlist = $dict; - } else { - pick_dictionary(); - } - - if ($imagemap_base && !($img_width && $img_height)) { - error ("--size WxH is required with --imagemap"); - } - - if (defined ($local_dir)) { - $_ = "xscreensaver-getimage-file"; - which ($_) || error "$_ not found on \$PATH."; - } - - init_signals(); - set_proxy(); - - spawn_driftnet ($driftnet_cmd) if ($driftnet_cmd); - - if ($urls_only_p) { - url_only_output (); - } else { - x_or_image_output ($window_id); - } -} - -main(); -exit (0); |