File Coverage

blib/lib/Net/Gnats/PR.pm

Criterion	Covered	Total	%
statement	204	244	83.6
branch	76	92	82.6
condition	16	19	84.2
subroutine	29	34	85.2
pod	16	18	88.8
total	341	407	83.7

package Net::Gnats::PR;
use 5.010_000;
use utf8;
use strictures;

BEGIN {
  $Net::Gnats::PR::VERSION = '0.22';
}
use vars qw($VERSION);

use Carp;
use MIME::Base64;
use Net::Gnats::Constants qw(FROM_FIELD REPLYTO_FIELD TO_FIELD CC_FIELD SUBJECT_FIELD SENDPR_VER_FIELD NOTIFY_FIELD);

use Net::Gnats::FieldInstance;
use Net::Gnats::Attachment;

$| = 1;
require Exporter;
our @ISA = qw(Exporter);
our @EXPORT_OK = qw( serialize deserialize parse_line);

# TODO: These came from gnatsweb.pl for the parsepr and unparsepr routines.
# should be done a better way?
my $UNFORMATTED_FIELD = 'Unformatted';
my $SYNOPSIS_FIELD = 'Synopsis';
my $ORIGINATOR_FIELD = 'Originator';
my $attachment_delimiter = "----gnatsweb-attachment----\n";
my $SENDINCLUDE  = 1;   # whether the send command should include the field
our $REVISION = '$Id: PR.pm,v 1.8 2014/08/16 23:40:56 thacker Exp $'; #'

#******************************************************************************
# Sub: new
# Description: Constructor
# Args: hash (parameter list)
# Returns: self
#******************************************************************************

=head1 CONSTRUCTOR

=head2 new

The new() constructor does not expect any options.  However, this may
change in the future when PR initialization is moved from Net::Gnats
to this class.

 my $pr = Net::Gnats::PR->new

=cut

sub new {
  my ( $class, %options ) = @_;
  my $self = bless {}, $class;
  $self->{number} = undef;
  $self->{fieldlist} = [];
  return $self if not %options;
  return $self;
}


=head1 ACCESSORS

=head2 asHash

Returns the PR formatted as a hash.  The returned hash contains field
names as keys, and the corresponding field values as hash values.

CHANGE ALERT: This method now returns all FieldInstance objects.

DEPRECATION NOTICE: This accessor will be removed in the near future.

=cut

sub asHash {
    my ( $self ) = shift;
    return %{$self->{fields}} if defined($self->{fields}); #XXX Deep copy?
    return undef;
}

=head2 asString

Returns the PR object formatted as a Gnats recongizable string.  The
result is suitable for submitting to Gnats.

 my $serialized_pr = $pr->asString;

DEPRECATION NOTICE: This accessor will be removed in the near future.
Instead, use:

 my $serialized_pr = $pr->serialize;

=cut

sub asString {
  my $self = shift;
  return Net::Gnats::PR->serialize($self,
                                   Net::Gnats->current_session->username);
}

=head2 getField

Returns the string value of a PR field.

 $pr->getField('field');

DEPRECATION NOTICE: this will be deprecated in the near future.  Use instead:

 $r->get_field('field')->value

=cut

sub getField {
    my ( $self, $field ) = @_;
    return $self->{fields}->{$field}->value;
}

=head2 getKeys

Returns the list of PR fields contained in the object.

=cut

sub getKeys {
    return keys %{shift->{fields}};
}

=head2 getNumber

Returns the gnats PR number. In previous versions of gnatsperl the
Number field was explicitly known to Net::Gnats::PR.  This method
remains for backwards compatibility.

DEPRECATION NOTICE: this will be deprecated in the near future.  Use
instead:

 $r->get_field('Number')->value

=cut

sub getNumber {
  return shift->{fields}->{'Number'}->value;
}

=head2 add_field

Adds a field instance to the fieldlist of a Nets::Gnats::PR object for fields that are not header fields.

=cut


sub add_field {
  my ($self, $field) = @_;
  $self->{fields}->{$field->name} = $field;
  # manage the list of fields in order only if it's not a header field.
  unless (_is_header_field($field->name)) {
    push @{ $self->{fieldlist} }, $field->name;
  }
  return;
}

=head2 get_field

Returns a field instance of an Nets::Gnats::PR object if field instance is defined.

=cut

sub get_field {
  my ($self, $fieldname) = @_;
  return $self->{fields}->{$fieldname} if defined $self->{fields}->{$fieldname};
  return undef;
}

=head2 get_field_from

Return an anonymous array of Nets::Gnats::PR object fields instances from a word part match.

=cut


sub get_field_from {
  my ( $self, $fieldname) = @_;
  my $result = [];

  foreach my $field ( sort keys %{ $self->{fields} } ) {
    push @$result, $field if $field =~ qr/^$fieldname/;
  }

  return $result;
}

=head2 replaceField

Sets a new value for an existing field.

If the field requires a Change Reason, and the field does not exist in
the PR, then the FieldInstance for the Change Reason is created.

Returns 0 if the field does not exist.

Returns 0 if the field requires a changeReason, but one was not provided.

Returns 0 if the change did not occur successfully.

Returns 1 if the field is set and flushed to Gnats.

=cut

sub replaceField {
  my ($self, $name, $value, $reason_value) = @_;
  return 0 if not defined $self->get_field($name);
  return 0 if not $self->setField($name, $value, $reason_value);

  my $f = $self->get_field($name);

  if ($f->schema->requires_change_reason) {
    return Net::Gnats
        ->current_session
        ->issue(Net::Gnats::Command->repl(
          pr_number => $self->get_field('Number')->value,
          field => $f,
          field_change_reason => $self->get_field($name . '-Changed-Why')))
        ->is_ok;
  }
  return Net::Gnats
    ->current_session
    ->issue(Net::Gnats::Command->repl(pr_number => $self->get_field('Number')->value,
                                      field => $f))->is_ok;
}


=head2 setField

Sets a Gnats field value.  Expects two arguments: the field name
followed by the field value.  If the field requires a change reason,
provide it as a third argument.

=cut

sub setField {
  my ($self, $name, $value, $reason_value) = @_;
  return 0 if not defined $self->get_field($name);
  my $f = $self->get_field($name);

  if ($f->schema->requires_change_reason) {
    return 0 if (not defined $reason_value);
    my $cr_instance =
      Net::Gnats::FieldInstance->new(
        schema => $f->schema->change_reason_field($name));
    $cr_instance->value($reason_value);
    $self->add_field($cr_instance);
  }

  $f->value($value);
  return 1;
}

=head2 submit

Submit this PR to Gnats.  It uses the currently active session to
perform the submit.

 $pr = $pr->submit;

After a successful submit, the PR with the PR Number is returned.

 say 'My new number is: ' . $pr->get_field('Number')->value;

By default, submit will not send a PR which already has a PR Number.
If your intent is to create a new PR based on this one, use the force
option (may change in the future).  This is useful when a series of
similar PRs need to be submitted.

 $pr = $pr->submit(1);

If the PR submission based on force was not successful, the PR will
return with the same PR Number.

=cut

sub submit {
  my ($self, $force) = @_;

  return $self if defined $self->get_field('Number') and not defined $force;

  my $command = Net::Gnats
      ->current_session
      ->issue(Net::Gnats::Command->subm(pr => $self));
  return $self if $command->is_ok == 0;

  # the number is in the second response item.  This should probably be in SUBM.pm.
  my $number = @{ $command->response->as_list }[1];
  if ( $self->get_field('Number') ) {
    $self->get_field('Number')->value($number);
  }
  else {
    my $field_schema = Net::Gnats->current_session->schema->field('Number');
    $self->add_field(Net::Gnats::FieldInstance->new( name => 'Number',
                                                     value => $number,
                                                     schema => $field_schema ));
  }
  return $self;
}

=head2 split_csl

 Split comma-separated list.
 Commas in quotes are not separators!

=cut

sub split_csl {
  my ($list) = @_;

  # Substitute commas in quotes with \002.
  while ($list =~ m~"([^"]*)"~g)
  {
    my $pos = pos($list);
    my $str = $1;
    $str =~ s~,~\002~g;
    $list =~ s~"[^"]*"~"$str"~;
		 pos($list) = $pos;
  }

  my @res;
  foreach my $person (split(/\s*,\s*/, $list))
  {
    $person =~ s/\002/,/g;
    push(@res, $person) if $person;
  }
  return @res;
}

=head2  fix_email_addrs

  Trim email addresses as they appear in an email From or Reply-To
  header into a comma separated list of just the addresses.

  Delete everything inside ()'s and outside <>'s, inclusive.

=cut

sub fix_email_addrs
{
  my $addrs = shift;
  my @addrs = split_csl ($addrs);
  my @trimmed_addrs;
  my $addr;
  foreach $addr (@addrs)
  {
    $addr =~ s/\(.*\)//;
    $addr =~ s/.*<(.*)>.*/$1/;
    $addr =~ s/^\s+//;
    $addr =~ s/\s+$//;
    push(@trimmed_addrs, $addr);
  }
  $addrs = join(', ', @trimmed_addrs);
  $addrs;
}

=head2 parse_line

Breaks down a Gnats query result.

=cut

sub parse_line {
  my ( $line, $known ) = @_;
  my $result = [];

  if (_is_header_line($line)) {
    my @found = $line =~ /^([\w\-\{\}]+):\s*(.*)$/;
    return \@found;
  }

  my @found = $line =~ /^>([\w\-\{\d\}]+):\s*(.*)$/;

  if ( not defined $found[0] ) {
    @{ $result }[1] = $line;
    return $result;
  }

  my $schemaname = _schema_fieldname($found[0]);

  my $schema_found = grep { $_ eq $schemaname } @{ $known };

  if ( $schema_found == 0 ) {
    @{ $result }[1] = $line;
    return $result;
  }

  @{ $result }[0] =  $found[0];
  $found[1] =~ s/\s+$//;
  @{ $result }[1] = $found[1];
  return $result;
}

sub _schema_fieldname {
  my ( $fieldname ) = @_;
  my $schemaname = $fieldname;
  $schemaname =~ s/{\d+}$//;
  return $schemaname;
}

sub _schema_fieldinstance {
  my ( $self, $fieldname ) = @_;
  return Net::Gnats->current_session
                   ->schema
                   ->field(_schema_fieldname($fieldname))
                   ->instance( for_name => $fieldname );
}

sub _clean {
  my ( $self, $line ) = @_;
  if ( not defined $line ) { return; }

  $line =~ s/\r|\n//gsm;
#  $line =~ s/^[.][.]/./gsm;
  return $line;
}

sub _is_header_line {
  my ( $line ) = @_;
  return 1 if $line =~ /^${\(FROM_FIELD)}:/;
  return 1 if $line =~ /^${\(REPLYTO_FIELD)}:/;
  return 1 if $line =~ /^${\(TO_FIELD)}:/;
  return 1 if $line =~ /^${\(CC_FIELD)}:/;
  return 1 if $line =~ /^${\(SUBJECT_FIELD)}:/;
  return 1 if $line =~ /^${\(SENDPR_VER_FIELD)}:/;
  return 1 if $line =~ /^${\(NOTIFY_FIELD)}:/;
  return 0;
}

sub _is_header_field {
  my ( $name ) = @_;
  return 1 if $name eq FROM_FIELD;
  return 1 if $name eq REPLYTO_FIELD;
  return 1 if $name eq TO_FIELD;
  return 1 if $name eq CC_FIELD;
  return 1 if $name eq SUBJECT_FIELD;
  return 1 if $name eq SENDPR_VER_FIELD;
  return 1 if $name eq NOTIFY_FIELD;
  return 0;
}

sub _is_first_line {
  my ( $line ) = @_;
  return 1 if $line =~ /^${\(FROM_FIELD)}:/;
  return 0;
}

=head2 deserialize

Deserializes a PR from Gnats and returns a hydrated PR.

 my $pr = Net::Gnats::PR->deserialize(raw => $c->response->raw,
                                      schema => $s->schema);

=cut

sub setFromString {
  my ($self, $data) = @_;
  # expects just a block of text, so we need to break it out
  $data =~ s/\r//g;
  my @lines = split /\n/, $data;
  return Net::Gnats::PR->deserialize(data => \@lines,
                                     schema => Net::Gnats->current_session->schema);
}

sub deserialize {
  my ($self, %options)  = @_;

  my $data = $options{data};
  my $schema = $options{schema};

  my $pr = Net::Gnats::PR->new();
  my $field;

  foreach my $line (@{$options{data}}) {
    $line = $self->_clean($line);
    next if $line eq '' or $line eq '.';

    my ( $name, $content ) = @{ parse_line( $line, $schema->fields ) };
    next if not defined $name and $content eq '';

    if ( defined $name and _is_first_line( $name . ':') ) {
      # put last PR in array, start new PR
    }

    if ( defined $name and _is_header_line( $name . ':' ) ) {
      $pr->add_field(
        Net::Gnats::FieldInstance->new( name => $name,
                                        value => $content,
                                        schema => $schema->field($name)));
      next;
    }

    # known header field found, save.
    if ( defined $name ) {
      $field = $self->_schema_fieldinstance($name);
      $field->value($content);
      $pr->add_field($field);
    }
    # known header field not found, append to last.
    else {
      $field->value( $field->value . "\n" . $content );
      $pr->setField($field);
    }
  }


  $pr->get_field('Reply-To')->value($pr->get_field('From'))
    if not defined $pr->get_field('Reply-To')->value;

  # create X-GNATS-Notify if we did not receive it.
  if (not defined $pr->get_field('X-GNATS-Notify')) {
      $pr->add_field(Net::Gnats::FieldInstance->new( name => 'X-GNATS-Notify',
                                                     value => '' ));
  }

  # Create an Unformatted field if it doesn't come in from Gnats.
  if (not $pr->get_field($UNFORMATTED_FIELD)) {
    $pr->add_field(Net::Gnats::FieldInstance->new( name => $UNFORMATTED_FIELD,
                                                   value => '' ));
  }

  my @attachments = split /$attachment_delimiter/,
                          $pr->get_field($UNFORMATTED_FIELD)->value;

  return $pr if scalar ( @attachments ) == 0;

  # First element is any random text which precedes delimited attachments.
  $pr->get_field($UNFORMATTED_FIELD)->value( shift @attachments );

  foreach my $attachment (@attachments) {
    # encoded PR always has a space in front of it
    push @{$pr->{attachments}},
         Net::Gnats::Attachment->new( payload => $attachment );
  }

  return $pr;
}

# unparse -
#     Turn PR fields hash into a multi-line string.
#
#     The $purpose arg controls how things are done.  The possible values
#     are:
#         'gnatsd'  - PR will be filed using gnatsd; proper '.' escaping done
#         'send'    - PR will be field using gnatsd, and is an initial PR.
#         'test'    - we're being called from the regression tests

# What is the user from the session?  Need to have user passed for originator.
sub serialize {
  my ( $self, $pr, $user ) = @_;
  my $purpose ||= 'gnatsd';
  $user ||= 'bugs';
  my ( $tmp, $text );
  my $debug = 0;

  # First create or reconstruct the Unformatted field containing the
  # attachments, if any.
  my %fields = %{$pr->{fields}};

  #if (not defined $pr->get_field('Unformatted')) {
  #  $pr->add_field(Net::Gnats::FieldInstance->new( name => $UNFORMATTED_FIELD,
  #                                                 value => '',
  #                                                 schema => ));
  #}

  # deal with attachment later
  # my $array_ref = $fields{'attachments'};
  # foreach my $hash_ref (@$array_ref) {
  #   my $attachment_data = $$hash_ref{'original_attachment'};
  #   # Deleted attachments leave empty hashes behind.
  #   next unless defined($attachment_data);
  #   $fields{$UNFORMATTED_FIELD} .= $attachment_delimiter . $attachment_data . "\n";
  # }
  # warn "unparsepr 2 =>$fields{$UNFORMATTED_FIELD}<=\n" if $debug;

  # Headers are necessary because Gnats expects it.
  $text .= FROM_FIELD . ': '     . $user . "\n";
  $text .= REPLYTO_FIELD . ': ' . $user . "\n";
  $text .= TO_FIELD . ': bugs' . "\n";
  $text .= CC_FIELD . ': ' . "\n";
  $text .= SUBJECT_FIELD . ': ' . $pr->get_field($SYNOPSIS_FIELD)->value . "\n";
  $text .= SENDPR_VER_FIELD . ': Net::Gnats ' . $Net::Gnats::VERSION . "\n";
  $text .= "\n";

  foreach my $fn (@{ $pr->{fieldlist} } ) {
    my $field = $pr->get_field($fn);
    #next if /^.$/;
    #next if (not defined($fields{$_})); # Don't send fields that aren't defined.
    # Do include Unformatted field in 'send' operation, even though
    # it's excluded.  We need it to hold the file attachment.
    # XXX ??? !!! FIXME

#    if(($purpose eq 'send')
#       && (! ($self->{__gnatsObj}->getFieldTypeInfo ($_, 'flags') & $SENDINCLUDE))
#       && ($_ ne $UNFORMATTED_FIELD))
#    {
#      next;
#    }

    if ($fn eq 'Unformatted') {
      next;
    }
#    $fields{$_} ||= ''; # Default to empty
    if ( $field->schema->type eq 'MultiText' ) {
      $tmp = $field->value;
      $tmp =~ s/\r//;
      $tmp =~ s/^[.]/../gm;
      chomp($tmp);
      $text .= sprintf(">%s:\n%s\n", $field->name, $tmp);
    }
    else {
      # Format string derived from gnats/pr.c.
      $text .= sprintf("%-16s %s\n", '>' . $field->name . ':', $field->value);
    }

    if ($pr->get_field($field->name . '-Changed-Why')) {
      # Lines which begin with a '.' need to be escaped by another '.'
      # if we're feeding it to gnatsd.
      $tmp = $pr->get_field($_ . '-Changed-Why')->value;
      $tmp =~ s/^[.]/../gm;
      $text .= sprintf(">%s-Changed-Why:\n%s\n", $field->name, $tmp);
    }
  }
  $text =~ s/\r//;
  return $text;
}


# preloaded methods go here.

# Autoload methods go after =cut, and are processed by the autosplit program.

1;
__END__