+++ /dev/null
-#!/usr/bin/perl
-
-use vars qw($VERSION %IRSSI);
-
-use Irssi 20020704;
-$VERSION = "1.2";
-%IRSSI = (
- authors => "Jochen 'c0ffee' Eisinger",
- contact => "c0ffee\@penguin-breeder.org",
- name => "SILC2 MIME handler",
- description => "This script implements MIME handlers for SILC2, according to draft-riikonen-silc-flags-payloads-00",
- license => "GPL2 or any later",
- url => "http://www.penguin-breeder.org/silc/",
- changed => "Wed Aug 29 10:45 CET 2003",
-);
-
-use Irssi::Silc;
-
-use MIME::Parser;
-use Mail::Field;
-use Mail::Cap;
-use File::MMagic;
-use IO::Scalar;
-use IO::File;
-use File::Temp qw/ tempfile /;
-use Sys::Hostname;
-use POSIX qw/ ceil /;
-
-my @mcaps;
-my $magic = new File::MMagic;
-
-##
-# read_mime_database
-#
-# Loads all mailcap databases specified in the setting
-# mime_database. Default is ~/.mailcap and /etc/mailcap in
-# that order. Function is invoked on startup.
-#
-# MIME Magic Info is also read...
-sub read_mime_database {
- # read mailcap databases rfc1525
- foreach (split /\s+/, Irssi::settings_get_str("mime_database")) {
- if (( -f $_ ) and ( -R $_ )) {
- Irssi::printformat(MSGLEVEL_CRAP, 'load_mailcap', $_)
- if Irssi::settings_get_bool("mime_verbose");
- $mcap = new Mail::Cap $_;
- push @mcaps, $mcap;
- } else {
- Irssi::printformat(MSGLEVEL_CRAP, 'load_mailcap_fail', $_)
- if Irssi::settings_get_bool("mime_verbose");
- }
- }
-
- $mfile = Irssi::settings_get_str("mime_magic");
-
- if ($mfile ne "") {
- Irssi::printformat(MSGLEVEL_CRAP, 'load_mime_magic', $mfile);
- $magic = File::MMagic::new($mfile);
- }
-
- if ( not -d Irssi::settings_get_str("mime_temp_dir")) {
-
- Irssi::printformat(MSGLEVEL_CRAP, 'no_temp_dir',
- Irssi::settings_get_str("mime_temp_dir"));
-
- Irssi::settings_set_str("mime_temp_dir", "/tmp");
-
- }
-}
-
-##
-# privmsg_get_query
-#
-# get or create query
-#
-sub privmsg_get_query {
- my ($server, $target, $own) = @_;
-
- $dest = $server->query_find($target);
- if (not defined $dest &&
- (Irssi::level2bits(settings_get_str("autocreate_query_level")) &
- MSGLEVEL_MSGS) &&
- (!$own || Irssi::settings_get_bool("autocreate_own_query"))) {
- $dest = Irssi::Silc::Server::query_create($server->{tag}, $target, 1);
- }
-
- return $dest;
-}
-
-##
-# unescape
-#
-# Removes the null-byte escaping from a data block. Returns the
-# unescaped data. All data send via mime signals must be escaped.
-sub unescape {
- my ($escaped) = @_;
- $escaped =~ s/\001\001/\000/g;
- $escaped =~ s/\001\002/\001/g;
-
- return $escaped;
-}
-
-##
-# escape
-#
-# Escapes null-bytes for signal transfer. Used to transfer binary data
-# in null-terminated strings. Returns the escaped data. All data send
-# via mime signals must be escaped.
-sub escape {
- my ($unescaped) = @_;
- $unescaped =~ s/\001/\001\002/g;
- $unescaped =~ s/\000/\001\001/g;
-
- return $unescaped;
-}
-
-##
-# background_exec
-#
-# fork and execute
-#
-sub background_exec {
- my ($server, $witem, $signed, $sender, $type, $cmd) = @_;
-
- if ($signed == -1) {
- $format = "mime_data_received";
- } elsif ($signed == 0) {
- $format = "mime_data_received_signed";
- } elsif ($signed == 1) {
- $format = "mime_data_received_unknown";
- } elsif ($signed == 2) {
- $format = "mime_data_received_failed";
- }
-
- if (not $witem->{type}) {
- $witem = privmsg_get_query($server, $sender, 0);
- }
-
- if ($witem->{type}) {
- $witem->printformat(MSGLEVEL_CRAP, $format, $sender, $type);
- $witem->window()->command("EXEC " . Irssi::settings_get_str("mime_exec_param") . " " .
- $cmd);
- } else {
- Irssi::printformat(MSGLEVEL_CRAP, $format, $sender, $type);
- Irssi::command("EXEC " . Irssi::settings_get_str("mime_exec_param") . " " .
- $cmd);
- }
-
-}
-
-my %partial;
-
-##
-# process_mime_entity(WI_ITEM_REC, $signed, $sender, MIME::Entity $msg)
-#
-# -1 failure, 0 success
-sub process_mime_entity {
- my ($server, $witem, $signed, $sender, $entity) = @_;
-
- my ($mimetype, $fh, $tempfile, $parser, $ret, $io, $mcap, $cmd);
-
- $mimetype = Mail::Field->new('Content-type', $entity->head->get('Content-Type'));
-
- # check whether this is message/partial
- if ($mimetype->type eq "message/partial") {
-
- # without an ID i don't know what stream this is related to
- if ($mimetype->id eq "") {
- Irssi::printformat(MSGLEVEL_CRAP, 'message_partial_failure', "no ID");
- return -1;
- }
-
- # the first packet is treated seperatly
- if ($mimetype->number == 1) {
-
- # the IDs should be unique
- if (defined $partial{$mimetype->id}) {
- Irssi::printformat(MSGLEVEL_CRAP, 'message_partial_failure', "duplicate ID");
- $fh = $partial{$mimetype->id}{file};
- $fh->close;
- unlink $partial{$mimetype->id}{name};
- undef $partial{$mimetype->id};
- return -1;
- }
-
- # create a new record
- $partial{$mimetype->id}{received} = 1;
- ($fh, $partial{$mimetype->id}{name})= tempfile("msg-XXXXXXXX", SUFFIX => ".dat", DIR => Irssi::settings_get_str("mime_temp_dir"));
- $partial{$mimetype->id}{file} = $fh;
- $partial{$mimetype->id}{count} = 1;
- $partial{$mimetype->id}{total} = $mimetype->total;
-
- } else { # 2nd and later packets
-
- # detect unknown IDs
- if (not defined $partial{$mimetype->id}) {
- Irssi::printformat(MSGLEVEL_CRAP, 'message_partial_failure', "unknown ID");
- return -1;
- }
-
- # the 'total' information can be set in any packet,
- # however it has to be the same all the time
- if ($mimetype->total > 0) {
-
- if (($partial{$mimetype->id}{total} > 0) &&
- ($partial{$mimetype->id}{total} != $mimetype->total)) {
- Irssi::printformat(MSGLEVEL_CRAP, 'message_partial_failure', "invalid count");
- $fh = $partial{$mimetype->id}{file};
- $fh->close;
- unlink $partial{$mimetype->id}{name};
- undef $partial{$mimetype->id};
- return -1;
- }
-
- $partial{$mimetype->id}{total} = $mimetype->total;
-
- }
-
- # we expect to receive packets in order
- if ($mimetype->number != ($partial{$mimetype->id}{count} + 1)) {
- Irssi::printformat(MSGLEVEL_CRAP, 'message_partial_failure', "invalid sequence number");
- $fh = $partial{$mimetype->id}{file};
- $fh->close;
- unlink $partial{$mimetype->id}{name};
- undef $partial{$mimetype->id};
- return -1;
- }
-
- # update our sequence record and save the packet
- $partial{$mimetype->id}{count} = $mimetype->number;
-
- }
-
- # and save the packet
- $fh = $partial{$mimetype->id}{file};
- if ($io = $entity->bodyhandle->open("r")) {
- while (defined($_ = $io->getline)) { print $fh $_ }
- $io->close;
- }
-
- # return if this wasn't the last packet
- if (($partial{$mimetype->id}{total} == 0) ||
- ($partial{$mimetype->id}{count} < $partial{$mimetype->id}{total})) {
- return 1;
- }
-
- # last packet...
- $tempfile = $partial{$mimetype->id}{name};
- $fh = $partial{$mimetype->id}{file};
- $fh->close;
- undef $partial{$mimetype->id};
-
- $parser = new MIME::Parser;
- $parser->output_dir(Irssi::settings_get_str("mime_temp_dir"));
- $mime = $parser->parse_open($tempfile);
-
- $ret = process_mime_entity($server, $witem, $signed, $sender, $mime);
-
- $parser->filer->purge;
- unlink $tempfile;
- return $ret;
-
- }
-
- # we could check for */parityfec (RTP packets) rfc2733, 3009
-
- # save to temporary file
- ($fh, $tempfile) = tempfile("msg-XXXXXXXX", SUFFIX => ".dat", DIR => Irssi::settings_get_str("mime_temp_dir"));
- if ($io = $entity->open("r")) {
- while (defined($_ = $io->getline)) { print $fh $_; }
- $io->close;
- }
- close $fh;
-
- # try to handle it
- foreach $mcap (@mcaps) {
-
- $cmd = $mcap->viewCmd($mimetype->type, $tempfile);
- next if not defined $cmd;
-
- background_exec($server, $witem, $signed, $sender, $mimetype->type, $cmd);
- return 1;
- }
-
- unlink $tempfile if Irssi::settings_get_bool("mime_unlink_tempfiles");
- return $mimetype->type;
-}
-
-##
-# sig_mime
-#
-# signal handler for incoming MIME type messages. If the encoding or
-# the content type are missing or not parsable, they default to binary
-# and application/octet-stream respectivly. If a decoder for the given
-# transfer encoding is available, the message is decoded. If a handler
-# for the given content type is available in one of the mailcap databases,
-# the handler is invoked and the signal is stopped. The mailcap databases
-# are scanned in order of loading. Temporary files are unlinked if the
-# setting mime_unlink_tempfiles is true.
-sub sig_mime {
-
- my ($server, $witem, $blob, $sender, $verified) = @_;
-
- $parser = new MIME::Parser;
- $parser->output_dir(Irssi::settings_get_str("mime_temp_dir"));
- $mime = $parser->parse_data(unescape($blob));
-
- $ret = process_mime_entity($server, $witem, $verified, $sender, $mime);
-
- $parser->filer->purge;
-
- if ($ret == 1) {
- Irssi::signal_stop();
- } elsif ($ret == -1) {
- return;
- } else {
- if (not $witem->{type}) {
- $witem = privmsg_get_query($server, $sender, 0);
- }
- $theme = $witem->{theme} || Irssi::current_theme;
- $format = $theme->get_format("fe-common/silc", "message_data");
- $format =~ s/\$0/$sender/;
- $format =~ s/\$1/$ret/;
- if ($witem->{type}) {
- $witem->print($theme->format_expand($format));
- } else {
- Irssi::print($theme->format_expand($format));
- }
- Irssi::signal_stop();
- }
-}
-
-##
-# cmd_mmsg
-#
-# Sends a file with a given MIME type and transfer encoding.
-#
-# MMSG [<-sign>] [<-channel>] <target> <file> [<type> [<encoding>]]
-#
-# Sends a private data message to other user in the network. The message
-# will be send as a MIME encoded data message.
-#
-# If -channel option is provided then this command actually send channel
-# message to the specified channel. The message IS NOT private message, it
-# is normal channel message.
-#
-# If the -sign optin is provided, the message will be additionally
-# signed.
-#
-# Messages that exceed roughly 64k have to be split up into smaller packets.
-# This is done automatically.
-#
-# If no transfer-encoding is given it defaults to binary or 7bit for messages
-# that have to be split up.
-#
-# If no content-type is given it is guessed using a MIME magic file.
-#
-# Settings
-#
-# mime_magic - path to MIME magic file, or internal
-# defaults if empty
-# mime_default_encoding - encoding to use if none specified
-# mime_temp_dir - where to store temporary files
-#
-# Examples
-#
-# /MMSG Foobar smiley.gif image/gif binary
-# /MMSG -channel silc silc.patch text/x-patch 7bit
-# /MMSG * boing.mp3 audio/mpeg
-sub cmd_mmsg {
- my ($data, $server, $witem) = @_;
-
- if ($server->{chat_type} ne "SILC") {
- Irssi::printformat(MSGLEVEL_CRAP, 'mmsg_chattype');
- return;
- }
-
- ($sign, $is_channel, $target, $file, $type, $encoding) =
- $data =~ /^\s*(?:(-sign)?\s+)? # match the -sign
- \s*(?:(-channel)?\s+)? # match the -channel
- (\*|\S+)\s+ # target
- (\S+) # filename
- (?:\s+(\S+) # mime type
- (?:\s+(\S+))?)?\s* # encoding
- $/ix;
-
- Irssi::printformat(MSGLEVEL_CRAP, 'mmsg_parameters'), return
- if ($target eq "") or ($file eq "");
-
- Irssi::printformat(MSGLEVEL_CRAP, 'mmsg_file', $file), return
- if not ( -f $file );
-
- $type = $magic->checktype_filename($file)
- if not defined $type;
- $encoding = Irssi::settings_get_str("mime_default_encoding")
- if not defined $encoding;
-
- # does the target exist? we don't test that... especially the
- # -channel parameter is ignored :/
-
- if ($target eq "*") {
-
- $is_channel = ($witem->{type} eq "CHANNEL" ? "-channel" : "");
- $target = $witem->{name};
-
- }
-
- $entity = new MIME::Entity->build(
- 'MIME-Version' => "1.0",
- Encoding => $encoding,
- Type => $type,
- Path => $file
- );
-
- ($fh, $tempfile) = tempfile( DIR => Irssi::settings_get_str("mime_temp_dir"));
- $entity->print($fh);
- close $fh;
-
- $is_channel = (lc($is_channel) eq "-channel" ? 1 : 0);
- $sign = (lc($sign) eq "-sign" ? 1 : 0);
-
- if ($is_channel) {
- $dest = $server->channel_find($target);
- } else {
- $dest = privmsg_get_query($server, $target, 1);
- }
-
-
- # 21:27 <@pekka> c0ffee: the core routines will crop the message if it
- # doesn't fit.. I would use a bit shorter than the MAX_LEN
- # 21:28 <@pekka> c0ffee: -1024 bytes is sufficient
- # 21:28 <@pekka> c0ffee: should be sufficient in all possible cases
- if ((stat($tempfile))[7] < 0xfbff) {
- $format = ($sign ? "mime_data_send_signed" : "mime_data_send");
- if ($dest->{type}) {
- $dest->printformat(MSGLEVEL_CRAP, $format, $type);
- } else {
- Irssi::printformat(MSGLEVEL_CRAP, $format, $type);
- }
-
- unlink $tempfile;
- Irssi::signal_emit("mime-send", $server, \$is_channel,
- $target, escape($entity->stringify), \$sign);
- } else {
-
- $format = ($sign ? "mime_data_multi_signed" : "mime_data_multi");
- $chunks = ceil((stat $tempfile)[7] / 0xfb00);
- if ($dest->{type}) {
- $dest->printformat(MSGLEVEL_CRAP, $format, $type, $chunks);
- } else {
- Irssi::printformat(MSGLEVEL_CRAP, $format, $type, $chunks);
- }
-
- open TFILE, $tempfile;
- $id = sprintf "id-%06d-%08d\@%s", int(rand(65535)), time(), hostname();;
- $chunks = 0;
- do {
- read TFILE, $data, 0xfb00;
- $chunks++;
-
- $entity = new MIME::Entity->build(
- 'MIME-Version' => "1.0",
- Encoding => "binary",
- Type => "message/partial; id=\"$id\"; number=$chunks" .
- (eof(TFILE) ? "; total=$chunks" : ""),
- Data => $data
- );
- Irssi::signal_emit("mime-send", $server, \$is_channel,
- $target, escape($entity->stringify), \$sign);
-
- } while (!eof(TFILE));
- close TFILE;
-
- unlink $tempfile;
- }
-}
-
-# Signal handlers
-Irssi::signal_add("mime", "sig_mime");
-
-# Commands
-Irssi::command_bind("mmsg", "cmd_mmsg");
-
-# Settings
-Irssi::settings_add_str("misc", "mime_database",
- "$ENV{HOME}/.mailcap /etc/mailcap");
-Irssi::settings_add_bool("misc", "mime_unlink_tempfiles", 1);
-Irssi::settings_add_str("misc", "mime_default_encoding", "binary");
-Irssi::settings_add_bool("misc", "mime_verbose", 0);
-Irssi::settings_add_str("misc", "mime_temp_dir", "/tmp");
-Irssi::settings_add_str("misc", "mime_magic", "");
-Irssi::settings_add_str("misc", "mime_exec_param", "-");
-
-# Init
-Irssi::theme_register(['load_mailcap', 'Loading mailcaps from {hilight $0}',
- 'load_mailcap_fail', 'Couldn\'t find {hilight $0}',
- 'message_partial_failure', 'message/partial: {hilight $0-}',
- 'mmsg_chattype', 'command was not designed for this chat type',
- 'mmsg_parameters', 'not enough parameters given',
- 'mmsg_file', 'File {hilight $0} not found',
- 'load_mime_magic', 'Loading MIME magic types from {hilight $0}',
- 'no_temp_dir', 'Directory {hilight $0} does not exist, defaulting to /tmp',
- 'mime_data_received', '{nick $0} sent "{hilight $1}" data message',
- 'mime_data_received_signed', '{nick $0} sent "{hilight $1}" data message (signature {flag_signed})',
- 'mime_data_received_unknown', '{nick $0} sent "{hilight $1}" data message (signature {flag_unknown})',
- 'mime_data_received_failed', '{nick $0} sent "{hilight $1}" data message (signature {flag_failed})',
- 'mime_data_send', 'sending "{hilight $0}" data message',
- 'mime_data_send_signed', 'sending "{hilight $0}" data message (signature {flag_signed})',
- 'mime_data_multi', 'sending "{hilight $0}" data message ($1 chunks)',
- 'mime_data_multi_signed', 'sending "{hilight $0}" data message ($1 chunks, signature {flag_signed})']);
-
-
-
-read_mime_database();
projects / runtime.git / blobdiff