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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 => "<-- $_";
- return 1 unless defined && ! /^\s*#/; # Skip blank lines, comments.
- chomp;
- my ($command, @params);
- if (defined $this->client_capb and grep { $_ eq 'escape' } @{$this->client_capb}) {
- ($command, @params)=unescape_split($_);
- } else {
- ($command, @params)=split(' ', $_);
- }
- $command=lc($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([@_]);
- $this->frontend->capb_backup(1) if grep { $_ eq '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";
-
- if (defined $question->value) {
- if (defined $this->client_capb and grep { $_ eq 'escape' } @{$this->client_capb}) {
- return $codes{escaped_data}, escape($question->value);
- } else {
- return $codes{success}, $question->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
-