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#!/usr/local/cpanel/3rdparty/bin/perl

# cpanel - scripts/cpbackup_transport_file         Copyright 2022 cPanel, L.L.C.
#                                                           All rights reserved.
# copyright@cpanel.net                                         http://cpanel.net
# This code is subject to the cPanel license. Unauthorized copying is prohibited

package scripts::cpbackup_transport_file;

use strict;
use warnings;

use parent qw( Cpanel::HelpfulScript );

use Cpanel::Debug          ();
use Cpanel::Logger         ();
use Cpanel::Backup::Config ();

=encoding utf-8

=head1 NAME

scripts::cpbackup_transport_file

=head1 SYNOPSIS

    cpbackup_transport_file [ --transport <transport_id> --upload </full/path/to/file.ext> | --debug ]
    cpbackup_transport_file [ --transport <transport_id> --download <path/on/remote/file.ext> --download-to </path/on/local/file.ext> | --debug ]
    cpbackup_transport_file [ --help ]

This script will allow you to upload or download any file via the requested backup transport outside of the normal queued process.
As such, it uploads things slightly differently. The file you request to upload will go to a subfolder of the 'path' you configured
for the transport you specify named 'manual_backup'. Example of how it should look uploaded:

myBackups/manual_backup/somefile.ext

Using this script can be useful in debugging transport failures, as there's two benefits here:

* Realtime streaming of all output without having to parse a log file (with option to obtain debugging output)

* No need to wait on backups first -- just provide a path to the file.

Currently, no effort is made in this script to update backup metadata or the transport history DBs.
This is because this script is provided as a convenience to testing, not as a regular part of the backup process.

*NOTE*: On transports that split files up due to necessity (like BackBlaze B2), the --download arg should represent the remote filename
as if it *was not* uploaded in parts. The backup transport code itself will know what to do with that to reconstruct the split file.

=head1 DESCRIPTION

See SYNOPSIS.

=cut

sub _OPTIONS {
    return qw( transport=s upload=s download=s download-to=s debug );
}

exit __PACKAGE__->new(@ARGV)->script() unless caller();

sub script {
    my ($self) = @_;

    my $transport_id    = $self->getopt('transport');
    my $upload_path     = $self->getopt('upload');
    my $download_remote = $self->getopt('download');
    if ( !$transport_id ) {
        print "\n" . $self->help();
        return 1;
    }
    if ( $download_remote && $upload_path ) {
        print "--download and --upload are mutually exclusive options\n\n" . $self->help();
        return 1;
    }
    $Cpanel::Debug::level = 9999 if ( $self->getopt('debug') );

    # Validate the transport_id
    require Cpanel::Backup::Transport;
    my $transports        = Cpanel::Backup::Transport->new();
    my $transport_configs = $transports->get_enabled_destinations();
    my $matching_cfg      = $transport_configs->{$transport_id};
    if ( !$matching_cfg ) {
        print "\nNo backup transports exist that are enabled and match the supplied transport. Exiting...\n";
        return 1;
    }

    if ($upload_path) {
        print "Attempting transport of '$upload_path' using transport ID '$transport_id''.\n";

        # Note, the 'Cpanel::Backup::Queue::transport_backup' package/namespace is also defined by this package, so thus it is imported.
        require Cpanel::Backup::Queue;    # PPI USE OK -- Cpanel::Backup::Queue::transport_backup is defined there
        require Cpanel::Backup::Config;
        require File::Basename;
        my $backup_conf = Cpanel::Backup::Config::load();
        my $args        = {
            local_path  => $upload_path,
            remote_path => 'manual_backup/' . File::Basename::basename($upload_path),
            local_files => $upload_path,
            keep_local  => 1,
            session_id  => 'MANUAL_RUN',
            type        => $backup_conf->{'BACKUPTYPE'},
            cmd         => 'do_the_dew',
            transport   => $transport_id,
        };

        # Log to stdout
        my $logger = Cpanel::Logger->new( { 'use_no_files' => 1 } );
        Cpanel::Backup::Queue::transport_backup->new()->process_task( $args, $logger );    # PPI NO PARSE -- See comment below
                                                                                           # The import of Cpanel::Backup::Queue above via require causes the
                                                                                           # namespace in question here to exist, as it is the kind of package
                                                                                           # which defines multiple packages in one file, as perl allows you to
                                                                                           # do. As this is the "common" design of TaskProcessor modules,
                                                                                           # this is not only expected but appropriate.

    }
    elsif ($download_remote) {
        my $download_local = $self->getopt('download-to');

        require Cpanel::Transport::Files;

        my $transporter = Cpanel::Transport::Files->new( $matching_cfg->{'type'}, $matching_cfg );
        print "Now attempting download of the requested file...\n";
        my $transporter_response = $transporter->get( $download_remote, $download_local );
        if ( !$transporter_response->{'success'} ) {
            print STDERR "[ERROR] $transporter_response->{'msg'}\n";
            return 2;
        }
    }
    else {
        print "\n" . $self->help();
        return 1;
    }
    return 0;
}

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