Steemit-WsClient/lib/Steemit/OperationSerializer.pm
package Steemit::OperationSerializer;
use Modern::Perl;
use Carp;
use Data::Dumper;
sub new {
my( $class, %params ) = @_;
my $self = {};
return bless $self, $class;
}
sub serialize_operation {
my( $self, $operation_name, $operation_parameters ) = @_;
##operation id
if( my $serializer_method = $self->can("serialize_$operation_name") ){
return $serializer_method->($self,$operation_name,$operation_parameters);
}else{
die "operation $operation_name currently not support for serialisation";
}
}
#let vote = new Serializer(
# "vote", {
# voter: string,
# author: string,
# permlink: string,
# weight: int16
#}
#);
sub serialize_vote {
my( $self, $operation_name, $operation_parameters ) = @_;
my $serialized_operation = '';
my $operation_id = $self->_index_of_operation($operation_name);
$serialized_operation .= pack "C", $operation_id;
$serialized_operation .= pack "C", length $operation_parameters->{voter};
$serialized_operation .= pack "A*", $operation_parameters->{voter};
$serialized_operation .= pack "C", length $operation_parameters->{author};
$serialized_operation .= pack "A*", $operation_parameters->{author};
$serialized_operation .= pack "C", length $operation_parameters->{permlink};
$serialized_operation .= pack "A*", $operation_parameters->{permlink};
$serialized_operation .= pack "s", $operation_parameters->{weight};
return $serialized_operation;
}
#let comment = new Serializer(
# "comment", {
# parent_author: string,
# parent_permlink: string,
# author: string,
# permlink: string,
# title: string,
# body: string,
# json_metadata: string
#}
#);
sub serialize_comment {
my( $self, $operation_name, $operation_parameters ) = @_;
my $serialized_operation = '';
my $operation_id = $self->_index_of_operation($operation_name);
$serialized_operation .= pack "C", $operation_id;
for my $field ( qw(parent_author parent_permlink author permlink title body json_metadata) ){
confess "$field missing in parameters".Dumper($operation_parameters) unless defined $operation_parameters->{$field};
$serialized_operation .= pack "C", length $operation_parameters->{$field};
$serialized_operation .= pack "A*", $operation_parameters->{$field};
}
return $serialized_operation;
}
#let delete_comment = new Serializer(
# "delete_comment", {
# author: string,
# permlink: string
#}
#);
sub serialize_delete_comment {
my( $self, $operation_name, $operation_parameters ) = @_;
my $serialized_operation = '';
my $operation_id = $self->_index_of_operation($operation_name);
$serialized_operation .= pack "C", $operation_id;
for my $field ( qw(author permlink) ){
$serialized_operation .= pack "C", length $operation_parameters->{$field} or confess "$field missing in parameters".Dumper($operation_parameters);;
$serialized_operation .= pack "A*", $operation_parameters->{$field};
}
return $serialized_operation;
}
sub _index_of_operation {
my ( $self, $operation ) = @_;
#https://github.com/steemit/steem-js/blob/master/src/auth/serializer/src/operations.js#L767
my @operations = qw(
vote
comment
transfer
transfer_to_vesting
withdraw_vesting
limit_order_create
limit_order_cancel
feed_publish
convert
account_create
account_update
witness_update
account_witness_vote
account_witness_proxy
pow
custom
report_over_production
delete_comment
custom_json
comment_options
set_withdraw_vesting_route
limit_order_create2
challenge_authority
prove_authority
request_account_recovery
recover_account
change_recovery_account
escrow_transfer
escrow_dispute
escrow_release
pow2
escrow_approve
transfer_to_savings
transfer_from_savings
cancel_transfer_from_savings
custom_binary
decline_voting_rights
reset_account
set_reset_account
claim_reward_balance
delegate_vesting_shares
account_create_with_delegation
fill_convert_request
author_reward
curation_reward
comment_reward
liquidity_reward
interest
fill_vesting_withdraw
fill_order
shutdown_witness
fill_transfer_from_savings
hardfork
comment_payout_update
return_vesting_delegation
comment_benefactor_reward
);
unless( $self->{_op_index} ){
my $count = 0;
$self->{_op_index} = { map { $_ => $count++ } @operations };
}
return $self->{_op_index}{$operation} // die "$operation not defined";
}
1;
__END__
=head1 NAME
Steemit::OperationSerializer - perl library for serializing operations intended to be send a transaction to the steemit blockchain
=head1 SYNOPSIS
the module is internally used by the Steemit::WsClient::_serialize_transaction_message method and most likely not realy usefull to you
exept when you want to add more supported serialisations
=head1 REPOSITORY
L<https://github.com/snkoehn/perlSteemit>
=head1 AUTHOR
snkoehn, C<< <snkoehn at cpan.org> >>
=head1 BUGS
Please report any bugs or feature requests to C<bug-steemit at rt.cpan.org>, or through
the web interface at L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Steemit::WsClient>. I will be notified, and then you'll
automatically be notified of progress on your bug as I make changes.
=head1 SUPPORT
You can find documentation for this module with the perldoc command.
perldoc Steemit::WsClient
You can also look for information at:
=over 4
=item * RT: CPAN's request tracker (report bugs here)
L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Steemit::WsClient>
=item * AnnoCPAN: Annotated CPAN documentation
L<http://annocpan.org/dist/Steemit::WsClient>
=item * CPAN Ratings
L<http://cpanratings.perl.org/d/Steemit::WsClient>
=item * Search CPAN
L<http://search.cpan.org/dist/Steemit::WsClient/>
=back
=head1 ACKNOWLEDGEMENTS
=head1 LICENSE AND COPYRIGHT
Copyright 2018 snkoehn.
This program is free software; you can redistribute it and/or modify it
under the terms of the the Artistic License (2.0). You may obtain a
copy of the full license at:
L<http://www.perlfoundation.org/artistic_license_2_0>
Any use, modification, and distribution of the Standard or Modified
Versions is governed by this Artistic License. By using, modifying or
distributing the Package, you accept this license. Do not use, modify,
or distribute the Package, if you do not accept this license.
If your Modified Version has been derived from a Modified Version made
by someone other than you, you are nevertheless required to ensure that
your Modified Version complies with the requirements of this license.
This license does not grant you the right to use any trademark, service
mark, tradename, or logo of the Copyright Holder.
This license includes the non-exclusive, worldwide, free-of-charge
patent license to make, have made, use, offer to sell, sell, import and
otherwise transfer the Package with respect to any patent claims
licensable by the Copyright Holder that are necessarily infringed by the
Package. If you institute patent litigation (including a cross-claim or
counterclaim) against any party alleging that the Package constitutes
direct or contributory patent infringement, then this Artistic License
to you shall terminate on the date that such litigation is filed.
Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER
AND CONTRIBUTORS "AS IS' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES.
THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY
YOUR LOCAL LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR
CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THE PACKAGE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=cut