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#!/usr/bin/perl -w # This file was preprocessed, do not edit! package Debconf::ConfModule; use strict; use IPC::Open2; use FileHandle; use Debconf::Gettext; use Debconf::Config; use Debconf::Question; use Debconf::Priority qw(priority_valid high_enough); use Debconf::FrontEnd::Noninteractive; use Debconf::Log ':all'; use Debconf::Encoding; use base qw(Debconf::Base); my %codes = ( success => 0, escaped_data => 1, badparams => 10, syntaxerror => 20, input_invisible => 30, version_bad => 30, go_back => 30, progresscancel => 30, internalerror => 100, ); sub init { my $this=shift; $this->version("2.0"); $this->owner('unknown') if ! defined $this->owner; $this->frontend->capb_backup(''); $this->seen([]); $this->busy([]); $ENV{DEBIAN_HAS_FRONTEND}=1; } sub startup { my $this=shift; my $confmodule=shift; $this->frontend->clear; $this->busy([]); my @args=$this->confmodule($confmodule); push @args, @_ if @_; debug developer => "starting ".join(' ',@args); $this->pid(open2($this->read_handle(FileHandle->new), $this->write_handle(FileHandle->new), @args)) || die $!; $this->caught_sigpipe(''); $SIG{PIPE}=sub { $this->caught_sigpipe(128) }; } sub communicate { my $this=shift; my $r=$this->read_handle; $_=<$r> || return $this->finish; chomp; my $ret=$this->process_command($_); my $w=$this->write_handle; print $w $ret."\n"; return '' unless length $ret; return 1; } sub escape { my $text=shift; $text=~s/\\/\\\\/g; $text=~s/\n/\\n/g; return $text; } sub unescape_split { my $text=shift; my @words; my $word=''; for my $chunk (split /(\\.|\s+)/, $text) { if ($chunk eq '\n') { $word.="\n"; } elsif ($chunk=~/^\\(.)$/) { $word.=$1; } elsif ($chunk=~/^\s+$/) { push @words, $word; $word=''; } else { $word.=$chunk; } } push @words, $word if $word ne ''; return @words; } sub process_command { my $this=shift; debug developer => "<-- $_"; chomp; my ($command, @params); if (defined $this->client_capb and grep { $_ eq 'escape' } @{$this->client_capb}) { ($command, @params)=unescape_split($_); } else { ($command, @params)=split(' ', $_); } if (! defined $command) { return $codes{syntaxerror}.' '. "Bad line \"$_\" received from confmodule."; } $command=lc($command); if (lc($command) eq "stop") { return $this->finish; } if (! $this->can("command_$command")) { return $codes{syntaxerror}.' '. "Unsupported command \"$command\" (full line was \"$_\") received from confmodule."; } $command="command_$command"; my $ret=join(' ', $this->$command(@params)); debug developer => "--> $ret"; if ($ret=~/\n/) { debug developer => 'Warning: return value is multiline, and would break the debconf protocol. Truncating to first line.'; $ret=~s/\n.*//s; debug developer => "--> $ret"; } return $ret; } sub finish { my $this=shift; waitpid $this->pid, 0 if defined $this->pid; $this->exitcode($this->caught_sigpipe || ($? >> 8)); $SIG{PIPE} = sub {}; foreach (@{$this->seen}) { my $q=Debconf::Question->get($_->name); $_->flag('seen', 'true') if $q; } $this->seen([]); return ''; } sub command_input { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ != 2; my $priority=shift; my $question_name=shift; my $question=Debconf::Question->get($question_name) || return $codes{badparams}, "\"$question_name\" doesn't exist"; if (! priority_valid($priority)) { return $codes{syntaxerror}, "\"$priority\" is not a valid priority"; } $question->priority($priority); my $visible=1; if ($question->type ne 'error') { $visible='' unless high_enough($priority); $visible='' if ! Debconf::Config->reshow && $question->flag('seen') eq 'true'; } my $markseen=$visible; if ($visible && ! $this->frontend->interactive) { $visible=''; $markseen='' unless Debconf::Config->noninteractive_seen eq 'true'; } my $element; if ($visible) { $element=$this->frontend->makeelement($question); unless ($element) { return $codes{internalerror}, "unable to make an input element"; } $visible=$element->visible; } if (! $visible) { $element=Debconf::FrontEnd::Noninteractive->makeelement($question, 1); return $codes{input_invisible}, "question skipped" unless $element; } $element->markseen($markseen); push @{$this->busy}, $question_name; $this->frontend->add($element); if ($element->visible) { return $codes{success}, "question will be asked"; } else { return $codes{input_invisible}, "question skipped"; } } sub command_clear { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ != 0; $this->frontend->clear; $this->busy([]); return $codes{success}; } sub command_version { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ > 1; my $version=shift; if (defined $version) { return $codes{version_bad}, "Version too low ($version)" if int($version) < int($this->version); return $codes{version_bad}, "Version too high ($version)" if int($version) > int($this->version); } return $codes{success}, $this->version; } sub command_capb { my $this=shift; $this->client_capb([@_]); if (grep { $_ eq 'backup' } @_) { $this->frontend->capb_backup(1); } else { $this->frontend->capb_backup(''); } my @capb=('multiselect', 'escape'); push @capb, $this->frontend->capb; return $codes{success}, @capb; } sub command_title { my $this=shift; $this->frontend->title(join ' ', @_); $this->frontend->requested_title($this->frontend->title); return $codes{success}; } sub command_settitle { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ != 1; my $question_name=shift; my $question=Debconf::Question->get($question_name) || return $codes{badparams}, "\"$question_name\" doesn't exist"; if ($this->frontend->can('settitle')) { $this->frontend->settitle($question); } else { $this->frontend->title($question->description); } $this->frontend->requested_title($this->frontend->title); return $codes{success}; } sub command_beginblock { return $codes{success}; } sub command_endblock { return $codes{success}; } sub command_go { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ > 0; my $ret=$this->frontend->go; if ($ret && (! $this->backed_up || grep { $_->visible } @{$this->frontend->elements})) { foreach (@{$this->frontend->elements}) { $_->question->value($_->value); push @{$this->seen}, $_->question if $_->markseen && $_->question; } $this->frontend->clear; $this->busy([]); $this->backed_up(''); return $codes{success}, "ok" } else { $this->frontend->clear; $this->busy([]); $this->backed_up(1); return $codes{go_back}, "backup"; } } sub command_get { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ != 1; my $question_name=shift; my $question=Debconf::Question->get($question_name) || return $codes{badparams}, "$question_name doesn't exist"; my $value=$question->value; if (defined $value) { if (defined $this->client_capb and grep { $_ eq 'escape' } @{$this->client_capb}) { return $codes{escaped_data}, escape($value); } else { return $codes{success}, $value; } } else { return $codes{success}, ''; } } sub command_set { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ < 1; my $question_name=shift; my $value=join(" ", @_); my $question=Debconf::Question->get($question_name) || return $codes{badparams}, "$question_name doesn't exist"; $question->value($value); return $codes{success}, "value set"; } sub command_reset { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ != 1; my $question_name=shift; my $question=Debconf::Question->get($question_name) || return $codes{badparams}, "$question_name doesn't exist"; $question->value($question->default); $question->flag('seen', 'false'); return $codes{success}; } sub command_subst { my $this = shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ < 2; my $question_name = shift; my $variable = shift; my $value = (join ' ', @_); my $question=Debconf::Question->get($question_name) || return $codes{badparams}, "$question_name doesn't exist"; my $result=$question->variable($variable,$value); return $codes{internalerror}, "Substitution failed" unless defined $result; return $codes{success}; } sub command_register { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ != 2; my $template=shift; my $name=shift; my $tempobj = Debconf::Question->get($template); if (! $tempobj) { return $codes{badparams}, "No such template, \"$template\""; } my $question=Debconf::Question->get($name) || Debconf::Question->new($name, $this->owner, $tempobj->type); if (! $question) { return $codes{internalerror}, "Internal error making question"; } if (! defined $question->addowner($this->owner, $tempobj->type)) { return $codes{internalerror}, "Internal error adding owner"; } if (! $question->template($template)) { return $codes{internalerror}, "Internal error setting template"; } return $codes{success}; } sub command_unregister { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ != 1; my $name=shift; my $question=Debconf::Question->get($name) || return $codes{badparams}, "$name doesn't exist"; if (grep { $_ eq $name } @{$this->busy}) { return $codes{badparams}, "$name is busy, cannot unregister right now"; } $question->removeowner($this->owner); return $codes{success}; } sub command_purge { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ > 0; my $iterator=Debconf::Question->iterator; while (my $q=$iterator->iterate) { $q->removeowner($this->owner); } return $codes{success}; } sub command_metaget { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ != 2; my $question_name=shift; my $field=shift; my $question=Debconf::Question->get($question_name) || return $codes{badparams}, "$question_name doesn't exist"; my $lcfield=lc $field; my $fieldval=$question->$lcfield(); unless (defined $fieldval) { return $codes{badparams}, "$field does not exist"; } if (defined $this->client_capb and grep { $_ eq 'escape' } @{$this->client_capb}) { return $codes{escaped_data}, escape($fieldval); } else { return $codes{success}, $fieldval; } } sub command_fget { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ != 2; my $question_name=shift; my $flag=shift; my $question=Debconf::Question->get($question_name) || return $codes{badparams}, "$question_name doesn't exist"; return $codes{success}, $question->flag($flag); } sub command_fset { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ < 3; my $question_name=shift; my $flag=shift; my $value=(join ' ', @_); my $question=Debconf::Question->get($question_name) || return $codes{badparams}, "$question_name doesn't exist"; if ($flag eq 'seen') { $this->seen([grep {$_ ne $question} @{$this->seen}]); } return $codes{success}, $question->flag($flag, $value); } sub command_info { my $this=shift; if (@_ == 0) { $this->frontend->info(undef); } elsif (@_ == 1) { my $question_name=shift; my $question=Debconf::Question->get($question_name) || return $codes{badparams}, "\"$question_name\" doesn't exist"; $this->frontend->info($question); } else { return $codes{syntaxerror}, "Incorrect number of arguments"; } return $codes{success}; } sub command_progress { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ < 1; my $subcommand=shift; $subcommand=lc($subcommand); my $ret; if ($subcommand eq 'start') { return $codes{syntaxerror}, "Incorrect number of arguments" if @_ != 3; my $min=shift; my $max=shift; my $question_name=shift; return $codes{syntaxerror}, "min ($min) > max ($max)" if $min > $max; my $question=Debconf::Question->get($question_name) || return $codes{badparams}, "$question_name doesn't exist"; $this->frontend->progress_start($min, $max, $question); $ret=1; } elsif ($subcommand eq 'set') { return $codes{syntaxerror}, "Incorrect number of arguments" if @_ != 1; my $value=shift; $ret = $this->frontend->progress_set($value); } elsif ($subcommand eq 'step') { return $codes{syntaxerror}, "Incorrect number of arguments" if @_ != 1; my $inc=shift; $ret = $this->frontend->progress_step($inc); } elsif ($subcommand eq 'info') { return $codes{syntaxerror}, "Incorrect number of arguments" if @_ != 1; my $question_name=shift; my $question=Debconf::Question->get($question_name) || return $codes{badparams}, "$question_name doesn't exist"; $ret = $this->frontend->progress_info($question); } elsif ($subcommand eq 'stop') { return $codes{syntaxerror}, "Incorrect number of arguments" if @_ != 0; $this->frontend->progress_stop(); $ret=1; } else { return $codes{syntaxerror}, "Unknown subcommand"; } if ($ret) { return $codes{success}, "OK"; } else { return $codes{progresscancel}, "CANCELED"; } } sub command_data { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ < 3; my $template=shift; my $item=shift; my $value=join(' ', @_); $value=~s/\\([n"\\])/($1 eq 'n') ? "\n" : $1/eg; my $tempobj=Debconf::Template->get($template); if (! $tempobj) { if ($item ne 'type') { return $codes{badparams}, "Template data field '$item' received before type field"; } $tempobj=Debconf::Template->new($template, $this->owner, $value); if (! $tempobj) { return $codes{internalerror}, "Internal error making template"; } } else { if ($item eq 'type') { return $codes{badparams}, "Template type already set"; } $tempobj->$item(Debconf::Encoding::convert("UTF-8", $value)); } return $codes{success}; } sub command_visible { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ != 2; my $priority=shift; my $question_name=shift; my $question=Debconf::Question->get($question_name) || return $codes{badparams}, "$question_name doesn't exist"; return $codes{success}, $this->frontend->visible($question, $priority) ? "true" : "false"; } sub command_exist { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ != 1; my $question_name=shift; return $codes{success}, Debconf::Question->get($question_name) ? "true" : "false"; } sub command_x_loadtemplatefile { my $this=shift; return $codes{syntaxerror}, "Incorrect number of arguments" if @_ < 1 || @_ > 2; my $file=shift; my $fh=FileHandle->new($file); if (! $fh) { return $codes{badparams}, "failed to open $file: $!"; } my $owner=$this->owner; if (@_) { $owner=shift; } eval { Debconf::Template->load($fh, $owner); }; if ($@) { $@=~s/\n/\\n/g; return $codes{internalerror}, $@; } return $codes{success}; } sub AUTOLOAD { (my $field = our $AUTOLOAD) =~ s/.*://; no strict 'refs'; *$AUTOLOAD = sub { my $this=shift; return $this->{$field} unless @_; return $this->{$field}=shift; }; goto &$AUTOLOAD; } sub DESTROY { my $this=shift; $this->read_handle->close if $this->read_handle; $this->write_handle->close if $this->write_handle; if (defined $this->pid && $this->pid > 1) { kill 'TERM', $this->pid; } } 1