1
Files
hexchat-scripts/web_link_saver/unsafe/img_url_wget.pl
2017-12-11 16:10:33 +03:00

424 lines
10 KiB
Perl

# one of hexchat contributors said this on freenode's #hexchat
# 2017-11-26 15:36 < TingPing> eleksir, the hexchat api isn't thread safe
# on practice it developes to memory leak
use HexChat qw(:all);
use threads;
use threads::shared;
use strict;
use warnings "all";
use MIME::Base64;
use URI::URL;
my $IMAGEMAGICK = undef; # use on demand, perl that shipped with hexchat-2.12.4 on windows miss this module
if ($^O ne 'cygwin') { # cygwin 2.882 64-bit has broken Image::Magick
$IMAGEMAGICK = eval {
require Image::Magick;
import Image::Magick qw(ping);
return 1;
}
}
sub dlfunc($); # thread, that checks and downloads stuff
sub is_picture($);
sub urlencode($);
sub hookfn;
sub loadliststatus($);
sub loadlist($);
sub savelist(@);
sub savesetting(@);
sub dl_cmd;
sub freehooks;
my $wgetpath; share($wgetpath);
my $script_name = "Image URL Downloader";
HexChat::register($script_name, '0.10', 'Automatically downloads image URLs via wget', \&freehooks);
HexChat::print("$script_name loaded\n");
my $help = 'Usage:
/dl enable nick|domain <name> - enable nick or domain blacklist
/dl disable nick|domain <name> - disable nick or domain blacklist
/dl add nick|domain <name> - adds nick or domain to apropriate blacklist
/dl del nick|domain <name> - removes nick or domain from apropriate blacklist
/dl show - show blacklists
/dl info - same as above
';
my @hooks;
push @hooks, HexChat::hook_print('Channel Message', \&hookfn);
push @hooks, HexChat::hook_print('Channel Msg Hilight', \&hookfn);
push @hooks, HexChat::hook_print('Channel Action', \&hookfn);
push @hooks, HexChat::hook_print('Channel Action Hilight', \&hookfn);
push @hooks, HexChat::hook_command('dl', \&dl_cmd);
my $active = 0;
share($active);
sub hookfn {
my ($nick, $text, $modechar) = @{$_[0]};
my $nicklist = loadliststatus('dl_nicklist');
if ($nicklist != 0) {
my @nicklist = loadlist('dl_nicks');
foreach (@nicklist) {
next unless(defined($_));
next if($_ eq '');
if ($_ eq $nick) {
undef $nick; undef $text; undef $modechar;
undef $nicklist;
@nicklist = -1; undef @nicklist;
return HexChat::EAT_NONE;
}
}
@nicklist = -1; undef @nicklist;
}
undef $nicklist;
my @words = split(/\s+/, $text);
foreach (@words) {
my $str = $_;
next unless(substr($str, 0, 4) eq 'http');
if ($str =~ m{https?://([a-zA-Z0-9.-]+\.[a-zA-Z]+)/(?:.*)}) {
my $domain = $1;
my $domainlist = loadliststatus('dl_domainlist');
if ($domainlist != 0) {
my @domainlist = loadlist('dl_domains');
foreach (@domainlist) {
next unless(defined($_));
next if($_ eq '');
if ($_ eq $domain) {
undef $nick; undef $text; undef $modechar;
@words = -1; undef @words;
undef $str; undef $domain;
undef $domainlist;
@domainlist = -1; undef @domainlist;
return HexChat::EAT_NONE;
}
}
@domainlist = -1, undef @domainlist;
}
undef $domainlist;
$active = 1;
my $t = undef;
do {
$t = threads->create('dlfunc', $str);
sleep 1 unless(defined($t));
} unless (defined($t));
$t->detach;
undef $t;
if ($active == 1) {
HexChat::hook_timer( 100, sub { return REMOVE if ($active == 0); return KEEP; } );
}
}
}
@words = -1; undef @words;
undef $nick; undef $text; undef $modechar;
return HexChat::EAT_NONE;
}
sub dlfunc($) {
my $url = shift;
if (-f "/bin/wget") {
$wgetpath = '/bin/wget';
} elsif (-f "/usr/bin/wget") {
$wgetpath = '/usr/bin/wget';
} elsif (-f "/usr/local/bin/wget") {
$wgetpath = '/usr/local/bin/wget';
} elsif (-f "c:\\perl\\bin\\wget.exe") {
$wgetpath = "c:\\perl\\bin\\wget.exe";
} elsif (-f "c:\\perl64\\bin\\wget.exe") {
$wgetpath = "c:\\perl64\\bin\\wget.exe";
} elsif (-f "$ENV{'PROGRAMFILES'}\\perl\\bin\\wget.exe") {
$wgetpath = "$ENV{'PROGRAMFILES'}\\perl\\bin\\wget.exe";
} elsif (-f "$ENV{'PROGRAMFILES'}\\perl64\\bin\\wget.exe") {
$wgetpath = "$ENV{'PROGRAMFILES'}\\perl64\\bin\\wget.exe";
}
my $extension = is_picture($url);
if (defined($extension)) {
my $savepath = sprintf("%s/imgsave", HexChat::get_info("configdir"));
if ($^O eq 'MSWin32') {
$savepath = $ENV{'USERPROFILE'} . '/Pictures';
}
mkdir ($savepath) unless (-d $savepath);
if ( (lc($url) =~ /\.(gif|jpeg|png|webm|mp4)$/) and ($1 eq $extension) ){
$savepath = $savepath . "/" . s/[^\w!., -#\?\:]/_/gr;
} else {
$savepath = $savepath . "/" . s/[^\w!., -#\?\:]/_/gr . ".$extension";
}
$url = urlencode($url);
system($wgetpath, '--no-check-certificate', '-q', '-T', '20', '-O', $savepath, '-o', '/dev/null', "$url");
if (($^O ne 'cygwin') and defined($IMAGEMAGICK)) {
eval {
if ($savepath =~ /(png|jpe?g|gif)$/i){
my $im = Image::Magick->new();
my $rename = 1;
my (undef, undef, undef, $format) = $im->Ping($savepath);
if (defined($format)) {
$rename = 0 if (($format eq 'JPEG') and ($savepath =~ /jpe?g$/i));
$rename = 0 if (($format eq 'GIF') and ($savepath =~ /gif$/i));
$rename = 0 if (($format =~ /^PNG/) and ($savepath =~ /png$/i));
rename $savepath, sprintf("%s.%s", $savepath, lc($format)) if ($rename == 1);
}
undef $im; undef $rename;
}
}
}
undef $savepath;
}
$active = 0;
undef $url; undef $extension;
}
sub is_picture($) {
my $url = shift;
$url = urlencode($url);
my $r = undef;
$r = `$wgetpath --no-check-certificate -q --method=HEAD -S --timeout=5 "$url" 2>&1`;
undef $url;
if ($? == 0) {
foreach (split(/\n/, $r)) {
next unless($_ =~ /Content\-Type: (.+)/);
$r = ($1); chomp($r);
last;
}
if (defined($r)) {
if ($r =~ /^image\/gif/) { $r = 'gif'; }
elsif ($r =~ /^image\/jpe?g/){ $r = 'jpeg';}
elsif ($r =~ /^image\/png/) { $r = 'png'; }
elsif ($r =~ /^video\/webm/) { $r = 'webm';}
elsif ($r =~ /^video\/mp4/) { $r = 'mp4'; }
else { $r = undef; }
} else {
$r = undef;
}
} else {
$r = undef;
}
return $r;
}
sub urlencode($) {
my $url = shift;
my $urlobj = url $url;
$url = $urlobj->as_string;
undef $urlobj;
return $url;
}
sub loadliststatus($) {
my $listtype = shift;
my $list = HexChat::plugin_pref_get($listtype);
unless (defined($list)) {
savesetting('list', '0');
$list = 0;
}
undef $listtype;
return $list;
}
sub loadlist($) {
my $setting = shift;
my $val = HexChat::plugin_pref_get($setting);
unless (defined($val)) {
savesetting($setting, encode_base64('', ''));
$val = '';
}
my @values = map { decode_base64($_); } split(/ /, $val);
undef $setting; undef $val;
return @values;
}
sub savelist(@) {
my $setting = shift;
my @list = map { encode_base64($_, ''); } @_;
my $value = join(' ', @list);
@list = -1; undef @list;
return savesetting($setting, $value);
}
sub savesetting(@) {
my $setting = shift;
my $value = shift;
if (HexChat::plugin_pref_set($setting, $value) == 0) {
HexChat::printf("Unable to save settings for %s\n", $script_name);
undef $setting; undef $value;
return undef;
}
undef $setting;
return 1;
}
sub dl_cmd {
shift(@{$_[0]});
my $cmd = shift(@{$_[0]});
my $entity = shift(@{$_[0]});
my $value = join(' ', @{$_[0]});
HexChat::print("\n");
my $msg = undef;
if (defined($cmd)) {
if ($cmd eq 'enable') {
if ($entity eq 'nick') {
if (defined(savesetting('dl_nicklist', '1'))) {
$msg = "Nicks blacklist now enabled\n";
}
} elsif ($entity eq 'domain') {
if (defined(savesetting('dl_domainlist', '1'))) {
$msg = "Domains blacklist now enabled\n";
}
}
} elsif ($cmd eq 'disable') {
if ($entity eq 'nick') {
if (defined(savesetting('dl_nicklist', '0'))) {
$msg = "Nicks blacklist now disabled\n";
}
} elsif ($entity eq 'domain') {
if (defined(savesetting('dl_domainlist', '0'))) {
$msg = "Domains blacklist now disabled\n";
}
}
} elsif (($cmd eq 'show') or ($cmd eq 'info')) {
$msg = '';
if (loadliststatus('dl_nicklist') == 0) {
$msg .= "Nicks blacklist: disabled\n";
} else {
$msg .= "Nicks blacklist: enabled\n";
}
$msg .= "Blacklisted nicks = " . join( ', ', loadlist('dl_nicks')) ."\n";
if (loadliststatus('dl_domainlist') == 0) {
$msg .= "Domains blacklist: disabled\n";
} else {
$msg .= "Domains blacklist: enabled\n";
}
$msg .= "Blacklisted domains = " . join( ', ', loadlist('dl_domains')) . "\n";
} elsif ($cmd eq 'add') {
if ((defined($entity)) and (defined($value))) {
if ($entity eq 'nick') {
my @nicks = (loadlist('dl_nicks'), $value);
unless (defined(savelist('dl_nicks', @nicks))) {
undef $cmd; undef $entity; undef $value; undef $msg;
@nicks = -1; undef @nicks;
return HexChat::EAT_ALL;
}
$msg = sprintf("Nicks blacklist now: %s\n", join(', ', @nicks));
@nicks = -1; undef @nicks;
} elsif ($entity eq 'domain') {
my @domains = (loadlist('dl_domains'), $value);
unless (defined(savelist('dl_domains', @domains))) {
undef $cmd; undef $entity; undef $value; undef $msg;
@domains = -1; undef @domains;
return HexChat::EAT_ALL;
}
$msg = sprintf("Domains blacklist now: %s\n", join(', ', @domains));
@domains = -1; undef @domains;
}
}
} elsif ($cmd eq 'del') {
if ((defined($entity)) and (defined($value))) {
if ($entity eq 'nick') {
my @list = loadlist('dl_nicks');
my @nicklist;
foreach (@list) {
next if ($_ eq $value);
push @nicklist, $_;
}
@list = -1; undef @list;
unless (defined(savelist('dl_nicks', @nicklist))) {
undef $cmd; undef $entity; undef $value; undef $msg;
@nicklist = -1; undef @nicklist;
return HexChat::EAT_ALL;
}
$msg = sprintf("Nicks blacklist now: %s\n", join(', ', @nicklist));
@nicklist = -1; undef @nicklist;
} elsif ($entity eq 'domain') {
my @list = loadlist('dl_domains');
my @domainlist;
foreach (@list) {
next if ($_ eq $value);
push @domainlist, $_;
}
@list = -1; undef @list;
unless (defined(savelist('dl_domains', @domainlist))) {
undef $cmd; undef $entity; undef $value; undef $msg;
@domainlist = -1; undef @domainlist;
return HexChat::EAT_ALL;
}
$msg = sprintf("Domains blacklist now: %s\n", join(', ', @domainlist));
@domainlist = -1; undef @domainlist;
}
}
}
}
unless (defined($msg)) {
HexChat::print($help);
} else {
HexChat::print($msg);
}
undef $cmd; undef $entity; undef $value; undef $msg;
return HexChat::EAT_ALL;
}
sub freehooks {
foreach (@hooks) {
HexChat::unhook($_);
}
return HexChat::EAT_ALL;
}