use strict;
use vars qw(%Cache %cmd_cache $errstr %aliases);
-%Cache = (); # cache of dynamically loaded routine's mod times
-%cmd_cache = (); # cache of short names
-$errstr = (); # error string from eval
-%aliases = (); # aliases for (parts of) commands
+%Cache = (); # cache of dynamically loaded routine's mod times
+%cmd_cache = (); # cache of short names
+$errstr = (); # error string from eval
+%aliases = (); # aliases for (parts of) commands
#
# obtain a new connection this is derived from dxchannel
sub new
{
- my $self = DXChannel::alloc(@_);
- $self->{sort} = 'U'; # in absence of how to find out what sort of an object I am
- return $self;
+ my $self = DXChannel::alloc(@_);
+ $self->{sort} = 'U'; # in absence of how to find out what sort of an object I am
+ return $self;
}
# this is how a a connection starts, you get a hello message and the motd with
sub start
{
- my ($self, $line, $sort) = @_;
- my $user = $self->{user};
- my $call = $self->{call};
- my $name = $user->{name};
-
- $self->{name} = $name ? $name : $call;
- $self->send($self->msg('l2',$self->{name}));
- $self->send_file($main::motd) if (-e $main::motd);
- $self->state('prompt'); # a bit of room for further expansion, passwords etc
- $self->{priv} = $user->priv;
- $self->{lang} = $user->lang;
- $self->{pagelth} = 20;
- $self->{priv} = 0 if $line =~ /^(ax|te)/; # set the connection priv to 0 - can be upgraded later
- $self->{consort} = $line; # save the connection type
-
- # set some necessary flags on the user if they are connecting
- $self->{wwv} = $self->{talk} = $self->{ann} = $self->{here} = $self->{dx} = 1;
-# $self->prompt() if $self->{state} =~ /^prompt/o;
-
- # add yourself to the database
- my $node = DXNode->get($main::mycall) or die "$main::mycall not allocated in DXNode database";
- my $cuser = DXNodeuser->new($self, $node, $call, 0, 1);
- $node->dxchan($self) if $call eq $main::myalias; # send all output for mycall to myalias
-
- # issue a pc16 to everybody interested
- my $nchan = DXChannel->get($main::mycall);
- my @pc16 = DXProt::pc16($nchan, $cuser);
- DXProt::broadcast_ak1a(@pc16);
- Log('DXCommand', "$call connected");
-
- # send prompts and things
- my $info = DXCluster::cluster();
- $self->send("Cluster:$info");
- $self->send($self->msg('pr', $call));
+ my ($self, $line, $sort) = @_;
+ my $user = $self->{user};
+ my $call = $self->{call};
+ my $name = $user->{name};
+
+ $self->{name} = $name ? $name : $call;
+ $self->send($self->msg('l2',$self->{name}));
+ $self->send_file($main::motd) if (-e $main::motd);
+ $self->state('prompt'); # a bit of room for further expansion, passwords etc
+ $self->{priv} = $user->priv;
+ $self->{lang} = $user->lang;
+ $self->{pagelth} = 20;
+ $self->{priv} = 0 if $line =~ /^(ax|te)/; # set the connection priv to 0 - can be upgraded later
+ $self->{consort} = $line; # save the connection type
+
+ # set some necessary flags on the user if they are connecting
+ $self->{beep} = $self->{wwv} = $self->{talk} = $self->{ann} = $self->{here} = $self->{dx} = 1;
+ # $self->prompt() if $self->{state} =~ /^prompt/o;
+
+ # add yourself to the database
+ my $node = DXNode->get($main::mycall) or die "$main::mycall not allocated in DXNode database";
+ my $cuser = DXNodeuser->new($self, $node, $call, 0, 1);
+ $node->dxchan($self) if $call eq $main::myalias; # send all output for mycall to myalias
+
+ # issue a pc16 to everybody interested
+ my $nchan = DXChannel->get($main::mycall);
+ my @pc16 = DXProt::pc16($nchan, $cuser);
+ DXProt::broadcast_ak1a(@pc16);
+ Log('DXCommand', "$call connected");
+
+ # send prompts and things
+ my $info = DXCluster::cluster();
+ $self->send("Cluster:$info");
+ $self->send($self->msg('pr', $call));
}
#
# send a tranche of data
while ($i-- > 0 && @$ref) {
my $line = shift @$ref;
- $line =~ s/\s+$//o; # why am having to do this?
+ $line =~ s/\s+$//o; # why am having to do this?
$self->send($line);
}
-
+
# reset state if none or else chuck out an intermediate prompt
if ($ref && @$ref) {
$tot -= $self->{pagelth};
}
} else {
@ans = run_cmd($self, $cmdline) if length $cmdline;
-
+
if ($self->{pagelth} && @ans > $self->{pagelth}) {
my $i;
for ($i = $self->{pagelth}; $i-- > 0; ) {
my $line = shift @ans;
- $line =~ s/\s+$//o; # why am having to do this?
+ $line =~ s/\s+$//o; # why am having to do this?
$self->send($line);
}
$self->{pagedata} = \@ans;
$self->send($self->msg('page', scalar @ans));
} else {
for (@ans) {
- s/\s+$//o; # why ?????????
+ s/\s+$//o; # why ?????????
$self->send($_);
}
}
$cmdline =~ s|//|/|og;
# split the command line up into parts, the first part is the command
- my ($cmd, $args) = $cmdline =~ /^([\w\/]+)\s*(.*)/o;
+ my ($cmd, $args) = $cmdline =~ /^([\S\/]+)\s*(.*)/o;
if ($cmd) {
my ($path, $fcmd);
+ dbg('command', "cmd: $cmd");
+
# alias it if possible
my $acmd = CmdAlias::get_cmd($cmd);
if ($acmd) {
($cmd, $args) = "$acmd $args" =~ /^([\w\/]+)\s*(.*)/o;
+ dbg('command', "aliased cmd: $cmd $args");
}
# first expand out the entry to a command
($path, $fcmd) = search($main::localcmd, $cmd, "pl");
($path, $fcmd) = search($main::cmd, $cmd, "pl") if !$path || !$fcmd;
+
+ dbg('command', "path: $cmd cmd: $fcmd");
my $package = find_cmd_name($path, $fcmd);
@ans = (0) if !$package ;
if ($package) {
+ dbg('command', "package: $package");
+
my $c = qq{ \@ans = $package(\$self, \$args) };
dbg('eval', "cluster cmd = $c\n");
eval $c;
}
}
}
-
+
if ($ans[0]) {
shift @ans;
} else {
#
sub process
{
- my $t = time;
- my @chan = DXChannel->get_all();
- my $chan;
-
- foreach $chan (@chan) {
- next if $chan->sort ne 'U';
-
- # send a prompt if no activity out on this channel
- if ($t >= $chan->t + $main::user_interval) {
- $chan->prompt() if $chan->{state} =~ /^prompt/o;
- $chan->t($t);
+ my $t = time;
+ my @chan = DXChannel->get_all();
+ my $chan;
+
+ foreach $chan (@chan) {
+ next if $chan->sort ne 'U';
+
+ # send a prompt if no activity out on this channel
+ if ($t >= $chan->t + $main::user_interval) {
+ $chan->prompt() if $chan->{state} =~ /^prompt/o;
+ $chan->t($t);
+ }
}
- }
}
#
#
sub finish
{
- my $self = shift;
- my $call = $self->call;
-
- if ($call eq $main::myalias) { # unset the channel if it is us really
- my $node = DXNode->get($main::mycall);
- $node->{dxchan} = 0;
- }
- my $ref = DXNodeuser->get($call);
-
- # issue a pc17 to everybody interested
- my $nchan = DXChannel->get($main::mycall);
- my $pc17 = $nchan->pc17($self);
- DXProt::broadcast_ak1a($pc17);
-
- Log('DXCommand', "$call disconnected");
- $ref->del() if $ref;
+ my $self = shift;
+ my $call = $self->call;
+
+ if ($call eq $main::myalias) { # unset the channel if it is us really
+ my $node = DXNode->get($main::mycall);
+ $node->{dxchan} = 0;
+ }
+ my $ref = DXNodeuser->get($call);
+
+ # issue a pc17 to everybody interested
+ my $nchan = DXChannel->get($main::mycall);
+ my $pc17 = $nchan->pc17($self);
+ DXProt::broadcast_ak1a($pc17);
+
+ Log('DXCommand', "$call disconnected");
+ $ref->del() if $ref;
}
#
sub prompt
{
- my $self = shift;
- my $call = $self->{call};
- $self->send($self->msg('pr', $call));
- #DXChannel::msg($self, 'pr', $call);
+ my $self = shift;
+ my $call = $self->{call};
+ $self->send($self->msg('pr', $call));
+ #DXChannel::msg($self, 'pr', $call);
}
# broadcast a message to all users [except those mentioned after buffer]
sub broadcast
{
- my $pkg = shift; # ignored
- my $s = shift; # the line to be rebroadcast
- my @except = @_; # to all channels EXCEPT these (dxchannel refs)
- my @list = DXChannel->get_all(); # just in case we are called from some funny object
- my ($chan, $except);
-
-L: foreach $chan (@list) {
- next if !$chan->sort eq 'U'; # only interested in user channels
- foreach $except (@except) {
- next L if $except == $chan; # ignore channels in the 'except' list
- }
- chan->send($s); # send it
- }
+ my $pkg = shift; # ignored
+ my $s = shift; # the line to be rebroadcast
+ my @except = @_; # to all channels EXCEPT these (dxchannel refs)
+ my @list = DXChannel->get_all(); # just in case we are called from some funny object
+ my ($chan, $except);
+
+ L: foreach $chan (@list) {
+ next if !$chan->sort eq 'U'; # only interested in user channels
+ foreach $except (@except) {
+ next L if $except == $chan; # ignore channels in the 'except' list
+ }
+ chan->send($s); # send it
+ }
}
# gimme all the users
sub get_all
{
- my @list = DXChannel->get_all();
- my $ref;
- my @out;
- foreach $ref (@list) {
- push @out, $ref if $ref->sort eq 'U';
- }
- return @out;
+ my @list = DXChannel->get_all();
+ my $ref;
+ my @out;
+ foreach $ref (@list) {
+ push @out, $ref if $ref->sort eq 'U';
+ }
+ return @out;
}
#
sub search
{
- my ($path, $short_cmd, $suffix) = @_;
- my ($apath, $acmd);
-
- # commands are lower case
- $short_cmd = lc $short_cmd;
- dbg('command', "command: $path $short_cmd\n");
-
- # return immediately if we have it
- my ($apath, $acmd) = split ',', $cmd_cache{$short_cmd};
- if ($apath && $acmd) {
- dbg('command', "cached $short_cmd = ($apath, $acmd)\n");
- return ($apath, $acmd);
- }
-
- # if not guess
- my @parts = split '/', $short_cmd;
- my $dirfn;
- my $curdir = $path;
- my $p;
- my $i;
- my @lparts;
-
- for ($i = 0; $i < @parts; $i++) {
- my $p = $parts[$i];
- opendir(D, $curdir) or confess "can't open $curdir $!";
- my @ls = readdir D;
- closedir D;
- my $l;
- foreach $l (sort @ls) {
- next if $l =~ /^\./;
- if ($i < $#parts) { # we are dealing with directories
- if ((-d "$curdir/$l") && $p eq substr($l, 0, length $p)) {
- dbg('command', "got dir: $curdir/$l\n");
- $dirfn .= "$l/";
- $curdir .= "/$l";
- last;
- }
- } else { # we are dealing with commands
- @lparts = split /\./, $l;
- next if $lparts[$#lparts] ne $suffix; # only look for .$suffix files
- if ($p eq substr($l, 0, length $p)) {
- pop @lparts; # remove the suffix
- $l = join '.', @lparts;
-# chop $dirfn; # remove trailing /
- $cmd_cache{"$short_cmd"} = join(',', ($path, "$dirfn$l")); # cache it
- dbg('command', "got path: $path cmd: $dirfn$l\n");
- return ($path, "$dirfn$l");
+ my ($path, $short_cmd, $suffix) = @_;
+ my ($apath, $acmd);
+
+ # commands are lower case
+ $short_cmd = lc $short_cmd;
+ dbg('command', "command: $path $short_cmd\n");
+
+ # do some checking for funny characters
+ return () if $short_cmd =~ /\/$/;
+
+ # return immediately if we have it
+ my ($apath, $acmd) = split ',', $cmd_cache{$short_cmd};
+ if ($apath && $acmd) {
+ dbg('command', "cached $short_cmd = ($apath, $acmd)\n");
+ return ($apath, $acmd);
+ }
+
+ # if not guess
+ my @parts = split '/', $short_cmd;
+ my $dirfn;
+ my $curdir = $path;
+ my $p;
+ my $i;
+ my @lparts;
+
+ for ($i = 0; $i < @parts; $i++) {
+ my $p = $parts[$i];
+ opendir(D, $curdir) or confess "can't open $curdir $!";
+ my @ls = readdir D;
+ closedir D;
+ my $l;
+ foreach $l (sort @ls) {
+ next if $l =~ /^\./;
+ if ($i < $#parts) { # we are dealing with directories
+ if ((-d "$curdir/$l") && $p eq substr($l, 0, length $p)) {
+ dbg('command', "got dir: $curdir/$l\n");
+ $dirfn .= "$l/";
+ $curdir .= "/$l";
+ last;
+ }
+ } else { # we are dealing with commands
+ @lparts = split /\./, $l;
+ next if $lparts[$#lparts] ne $suffix; # only look for .$suffix files
+ if ($p eq substr($l, 0, length $p)) {
+ pop @lparts; # remove the suffix
+ $l = join '.', @lparts;
+ # chop $dirfn; # remove trailing /
+ $cmd_cache{"$short_cmd"} = join(',', ($path, "$dirfn$l")); # cache it
+ dbg('command', "got path: $path cmd: $dirfn$l\n");
+ return ($path, "$dirfn$l");
+ }
+ }
}
- }
}
- }
- return ();
+ return ();
}
# clear the command name cache
sub clear_cmd_cache
{
- %cmd_cache = ();
+ %cmd_cache = ();
}
#
#require Devel::Symdump;
sub valid_package_name {
- my($string) = @_;
- $string =~ s/([^A-Za-z0-9\/])/sprintf("_%2x",unpack("C",$1))/eg;
-
- #second pass only for words starting with a digit
- $string =~ s|/(\d)|sprintf("/_%2x",unpack("C",$1))|eg;
+ my($string) = @_;
+ $string =~ s/([^A-Za-z0-9\/])/sprintf("_%2x",unpack("C",$1))/eg;
- #Dress it up as a real package name
- $string =~ s/\//_/og;
- return "Emb_" . $string;
+ #second pass only for words starting with a digit
+ $string =~ s|/(\d)|sprintf("/_%2x",unpack("C",$1))|eg;
+
+ #Dress it up as a real package name
+ $string =~ s/\//_/og;
+ return "Emb_" . $string;
}
#borrowed from Safe.pm
sub delete_package {
- my $pkg = shift;
- my ($stem, $leaf);
+ my $pkg = shift;
+ my ($stem, $leaf);
+
+ no strict 'refs';
+ $pkg = "DXCommandmode::$pkg\::"; # expand to full symbol table name
+ ($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
- no strict 'refs';
- $pkg = "DXCommandmode::$pkg\::"; # expand to full symbol table name
- ($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
-
- if ($stem && $leaf) {
- my $stem_symtab = *{$stem}{HASH};
- delete $stem_symtab->{$leaf};
- }
+ if ($stem && $leaf) {
+ my $stem_symtab = *{$stem}{HASH};
+ delete $stem_symtab->{$leaf};
+ }
}
# find a cmd reference
#
sub find_cmd_ref
{
- my $cmd = shift;
- my $r;
-
- if ($cmd) {
-
- # first expand out the entry to a command
- my ($path, $fcmd) = search($main::localcmd, $cmd, "pl");
- ($path, $fcmd) = search($main::cmd, $cmd, "pl") if !$path || !$fcmd;
-
- # make sure it is loaded
- $r = find_cmd_name($path, $fcmd);
- }
- return $r;
+ my $cmd = shift;
+ my $r;
+
+ if ($cmd) {
+
+ # first expand out the entry to a command
+ my ($path, $fcmd) = search($main::localcmd, $cmd, "pl");
+ ($path, $fcmd) = search($main::cmd, $cmd, "pl") if !$path || !$fcmd;
+
+ # make sure it is loaded
+ $r = find_cmd_name($path, $fcmd);
+ }
+ return $r;
}
#
# this bit of magic finds a command in the offered directory
sub find_cmd_name {
- my $path = shift;
- my $cmdname = shift;
- my $package = valid_package_name($cmdname);
- my $filename = "$path/$cmdname.pl";
- my $mtime = -M $filename;
-
- # return if we can't find it
- $errstr = undef;
- if (undef $mtime) {
- $errstr = DXM::msg('e1');
- return undef;
- }
-
- if(defined $Cache{$package}{mtime} && $Cache{$package}{mtime } <= $mtime) {
- #we have compiled this subroutine already,
- #it has not been updated on disk, nothing left to do
- #print STDERR "already compiled $package->handler\n";
- ;
- } else {
- my $fh = new FileHandle;
- if (!open $fh, $filename) {
- $errstr = "Syserr: can't open '$filename' $!";
- return undef;
- };
- local $/ = undef;
- my $sub = <$fh>;
- close $fh;
-
- #wrap the code into a subroutine inside our unique package
- my $eval = qq{
- sub $package
- {
- $sub
- } };
-
- if (isdbg('eval')) {
- my @list = split /\n/, $eval;
- my $line;
- for (@list) {
- dbg('eval', $_, "\n");
- }
- }
+ my $path = shift;
+ my $cmdname = shift;
+ my $package = valid_package_name($cmdname);
+ my $filename = "$path/$cmdname.pl";
+ my $mtime = -M $filename;
- {
- #hide our variables within this block
- my($filename,$mtime,$package,$sub);
- eval $eval;
+ # return if we can't find it
+ $errstr = undef;
+ if (undef $mtime) {
+ $errstr = DXM::msg('e1');
+ return undef;
}
- if ($@) {
- print "\$\@ = $@";
- $errstr = $@;
- delete_package($package);
+ if(defined $Cache{$package}{mtime} && $Cache{$package}{mtime } <= $mtime) {
+ #we have compiled this subroutine already,
+ #it has not been updated on disk, nothing left to do
+ #print STDERR "already compiled $package->handler\n";
+ ;
} else {
- #cache it unless we're cleaning out each time
- $Cache{$package}{mtime} = $mtime;
+ my $fh = new FileHandle;
+ if (!open $fh, $filename) {
+ $errstr = "Syserr: can't open '$filename' $!";
+ return undef;
+ };
+ local $/ = undef;
+ my $sub = <$fh>;
+ close $fh;
+
+ #wrap the code into a subroutine inside our unique package
+ my $eval = qq{
+ sub $package
+ {
+ $sub
+ } };
+
+ if (isdbg('eval')) {
+ my @list = split /\n/, $eval;
+ my $line;
+ for (@list) {
+ dbg('eval', $_, "\n");
+ }
+ }
+
+ {
+ #hide our variables within this block
+ my($filename,$mtime,$package,$sub);
+ eval $eval;
+ }
+
+ if ($@) {
+ print "\$\@ = $@";
+ $errstr = $@;
+ delete_package($package);
+ } else {
+ #cache it unless we're cleaning out each time
+ $Cache{$package}{mtime} = $mtime;
+ }
}
- }
-
- #print Devel::Symdump->rnew($package)->as_string, $/;
- $package = "DXCommandmode::$package" if $package;
- $package = undef if $errstr;
- return $package;
+
+ #print Devel::Symdump->rnew($package)->as_string, $/;
+ $package = "DXCommandmode::$package" if $package;
+ $package = undef if $errstr;
+ return $package;
}
1;
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