[pmg-api.git] / bin / pmgsh

#!/usr/bin/perl

use strict;
use warnings;
use Term::ReadLine;
use File::Basename;
use Getopt::Long;
use HTTP::Status qw(:constants :is status_message);
use Text::ParseWords;

use PVE::JSONSchema;
use PVE::SafeSyslog;
use PVE::INotify;

use PMG::RESTEnvironment;

use PMG::Ticket;
use PMG::Cluster;
use PMG::API2;

use JSON;

PVE::INotify::inotify_init();

my $rpcenv = PMG::RESTEnvironment->init('cli');

$rpcenv->set_language($ENV{LANG});
$rpcenv->set_user('root@pam');
my $ticket = PMG::Ticket::assemble_ticket('root@pam');

my $logid = $ENV{PVE_LOG_ID} || 'pmgsh';
initlog($logid);

my $basedir = '/api2/json';

my $cdir = '';

sub print_usage {
    my $msg = shift;

    print STDERR "ERROR: $msg\n" if $msg;
    print STDERR "USAGE: pmgsh [verifyapi]\n";
    print STDERR "       pmgsh CMD [OPTIONS]\n";

}

my $disable_proxy = 0;
my $opt_nooutput = 0;

my $cmd = shift;

my $optmatch;
do {
    $optmatch = 0;
    if ($cmd) {
	if ($cmd eq '--noproxy') {
	    $cmd = shift;
	    $disable_proxy = 1;
	    $optmatch = 1;
	} elsif ($cmd eq '--nooutput') {
	    # we use this when starting task in CLI (suppress printing upid)
	    $cmd = shift;
	    $opt_nooutput = 1;
	    $optmatch = 1;
	}
    }
} while ($optmatch);

if ($cmd) {
    if ($cmd eq 'verifyapi') {
	PVE::RESTHandler::validate_method_schemas();
	exit 0;
    } elsif ($cmd eq 'ls' || $cmd eq 'get' || $cmd eq 'create' || 
	     $cmd eq 'set' || $cmd eq 'delete' ||$cmd eq 'help' ) {
	pmg_command([ $cmd, @ARGV],  $opt_nooutput);
	exit(0);
    } else {
	print_usage ("unknown command '$cmd'");
	exit (-1);
    }
}

if (scalar (@ARGV) != 0) {
    print_usage();
    exit(-1);
}

print "entering PMG shell - type 'help' for help\n";

my $term = new Term::ReadLine('pmgsh');
my $attribs = $term->Attribs;

sub complete_path {
    my($text) = @_;

    my ($dir, undef, $rest) = $text =~ m|^(.*/)?(([^/]*))?$|;
    my $path = abs_path($cdir, $dir);

    my @res = ();

    my $di = dir_info($path);
    if (my $children = $di->{children}) {
	foreach my $c (@$children) {
	    if ($c =~ /^\Q$rest/) {
		my $new =  $dir ? "$dir$c" : $c;
		push @res, $new; 
	    }
	}
    }

    if (scalar(@res) == 0) {
	return undef;
    } elsif (scalar(@res) == 1) {
	return ($res[0], $res[0], "$res[0]/");
    } 

    # lcd : lowest common denominator
    my $lcd = '';
    my $tmp = $res[0];
    for (my $i = 1; $i <= length($tmp); $i++) {
	my $found = 1;
	foreach my $p (@res) {
	    if (substr($tmp, 0, $i) ne substr($p, 0, $i)) {
		$found = 0;
		last;
	    }
	}
	if ($found) {
	    $lcd = substr($tmp, 0, $i);
	} else {
	    last;
	}
    }

    return ($lcd, @res);
};

# just to avoid an endless loop (called by attempted_completion_function)
$attribs->{completion_entry_function} = sub {
    my($text, $state) = @_;
    return undef;
};

$attribs->{attempted_completion_function} = sub {
    my ($text, $line, $start) = @_;

    my $prefix = substr($line, 0, $start);
    if ($prefix =~ /^\s*$/) { # first word (command completeion)
	$attribs->{completion_word} = [qw(help ls cd get set create delete quit)];
	return $term->completion_matches($text, $attribs->{list_completion_function});
    }

    if ($prefix =~ /^\s*\S+\s+$/) { # second word (path completion)
	return complete_path($text);
    }

    return ();   
};

sub abs_path {
    my ($current, $path) = @_;

    my $ret = $current;

    return $current if !defined($path);

    $ret = '' if $path =~ m|^\/|;

    foreach my $d (split (/\/+/ , $path)) {
	if ($d eq '.') {
	    next;
	} elsif ($d eq '..') {
	    $ret = dirname($ret);
	    $ret = '' if $ret eq '.';
	} else {
	    $ret = "$ret/$d";
	}
    }

    $ret =~ s|\/+|\/|g;
    $ret =~ s|^\/||;
    $ret =~ s|\/$||;

    return $ret;
}

my $read_password = sub {
    my $attribs = $term->Attribs;
    my $old = $attribs->{redisplay_function};
    $attribs->{redisplay_function} = $attribs->{shadow_redisplay};
    my $input = $term->readline('password: ');
    my $conf = $term->readline('Retype new password: ');
    $attribs->{redisplay_function} = $old;

    # remove password from history
    if ($term->Features->{autohistory}) {
	my $historyPosition = $term->where_history();
	$term->remove_history($historyPosition);
	$term->remove_history($historyPosition - 1);
    }

    die "Passwords do not match.\n" if ($input ne $conf);
    return $input;
};

sub reverse_map_cmd {
    my $method = shift;

    my $mmap = {
	GET => 'get',
	PUT => 'set',
	POST => 'create',
	DELETE => 'delete',
    };

    my $cmd = $mmap->{$method};

    die "got strange value for method ('$method') - internal error" if !$cmd;

    return $cmd;
}

sub map_cmd {
    my $cmd = shift;

    my $mmap = {
	create => 'POST',
	set => 'PUT',
	get => 'GET',
	ls => 'GET',
	delete => 'DELETE',
    };

    my $method = $mmap->{$cmd};

    die "unable to map method" if !$method;

    return $method;
}

sub check_proxyto {
    my ($info, $uri_param) = @_;

    if ($info->{proxyto}) {
	my $pn = $info->{proxyto};
	my $node;
	if ($pn eq 'master') {
	    $node = PMG::Cluster::get_master_node();
	} else {
	    $node = $uri_param->{$pn};
	    die "proxy parameter '$pn' does not exists" if !$node;
	}

	if ($node ne 'localhost' && ($node ne PVE::INotify::nodename())) {
	    die "proxy loop detected - aborting\n" if $disable_proxy;
	    my $remip = PMG::Cluster::remote_node_ip($node);
	    return ($node, $remip);
	}
    }

    return undef;
}

sub proxy_handler {
    my ($node, $remip, $dir, $cmd, $args) = @_;

    my $remcmd = ['ssh', '-o', 'BatchMode=yes', "root\@$remip", 
	       'pmgsh', '--noproxy', $cmd, $dir, @$args];

    system(@$remcmd) == 0 || die "proxy handler failed\n";
}

sub call_method {
    my ($dir, $cmd, $args, $nooutput) = @_;

    my $method = map_cmd($cmd);

    my $uri_param = {};
    my ($handler, $info) = PMG::API2->find_handler($method, $dir, $uri_param);
    if (!$handler || !$info) {
	die "no '$cmd' handler for '$dir'\n";
    }

    my ($node, $remip) = check_proxyto($info, $uri_param);
    return proxy_handler($node, $remip, $dir, $cmd, $args) if $node;

    my $data = $handler->cli_handler("$cmd $dir", $info->{name}, $args, [], $uri_param, $read_password);

    return if $nooutput;

    warn "200 OK\n"; # always print OK status if successful

    if ($info && $info->{returns} && $info->{returns}->{type}) {
	my $rtype = $info->{returns}->{type};

	return if $rtype eq 'null';

	if ($rtype eq 'string') {
	    print $data if $data;
	    return;
	}
    }

    print to_json($data, {utf8 => 1, allow_nonref => 1, canonical => 1, pretty => 1 });

    return;
}

sub find_resource_methods {
    my ($path, $ihash) = @_;

    for my $method (qw(GET POST PUT DELETE)) {
	my $uri_param = {};
	my $path_match;
	my ($handler, $info) = PMG::API2->find_handler($method, $path, $uri_param, \$path_match);
	if ($handler && $info && !$ihash->{$info}) {
	    $ihash->{$info} = {
		path => $path_match,
		handler => $handler, 
		info => $info, 
		uri_param => $uri_param,
	    };
	}
    }
}

sub print_help {
    my ($path, $opts) = @_;

    my $ihash = {};

    find_resource_methods($path, $ihash);

    if (!scalar(keys(%$ihash))) {
	die "no such resource\n";
    }

    my $di = dir_info($path);
    if (my $children = $di->{children}) {
	foreach my $c (@$children) {
	    my $cp = abs_path($path, $c);
	    find_resource_methods($cp, $ihash);
	}
    }

    foreach my $mi (sort { $a->{path} cmp $b->{path} } values %$ihash) {
	my $method = $mi->{info}->{method};

	# we skip index methods for now.
	next if ($method eq 'GET') && PVE::JSONSchema::method_get_child_link($mi->{info});

	my $path = $mi->{path};
	$path =~ s|/+$||; # remove trailing slash

	my $cmd = reverse_map_cmd($method);

	print $mi->{handler}->usage_str($mi->{info}->{name}, "$cmd $path", [], $mi->{uri_param}, 
					$opts->{verbose} ? 'full' : 'short', 1);
	print "\n\n" if $opts->{verbose};
    }
 
};

sub resource_cap {
    my ($path) = @_;

    my $res = '';

    my ($handler, $info) = PMG::API2->find_handler('GET', $path);
    if (!($handler && $info)) {
	$res .= '--';
    } else {
	if (PVE::JSONSchema::method_get_child_link($info)) {
	    $res .= 'Dr';
	} else {
	    $res .= '-r';
	}
    }

    ($handler, $info) = PMG::API2->find_handler('PUT', $path);
    if (!($handler && $info)) {
	$res .= '-';
    } else {
	$res .= 'w';
    }

    ($handler, $info) = PMG::API2->find_handler('POST', $path);
    if (!($handler && $info)) {
	$res .= '-';
    } else {
	$res .= 'c';
    }

    ($handler, $info) = PMG::API2->find_handler('DELETE', $path);
    if (!($handler && $info)) {
	$res .= '-';
    } else {
	$res .= 'd';
    }

    return $res;
}

sub extract_children {
    my ($lnk, $data) = @_;

    my $res = [];

    return $res if !($lnk && $data);

    my $href = $lnk->{href};
    if ($href =~ m/^\{(\S+)\}$/) {
	my $prop = $1;

	foreach my $elem (sort {$a->{$prop} cmp $b->{$prop}} @$data) {
	    next if !ref($elem);
	    my $value = $elem->{$prop};
	    push @$res, $value;
	}
    }

    return $res;
}

sub dir_info {
    my ($path) = @_;

    my $res = { path => $path };
    my $uri_param = {};
    my ($handler, $info, $pm) = PMG::API2->find_handler('GET', $path, $uri_param);
    if ($handler && $info) {
	eval {
	    my $data = $handler->handle($info, $uri_param);
	    my $lnk = PVE::JSONSchema::method_get_child_link($info);
	    $res->{children} = extract_children($lnk, $data);
	}; # ignore errors ?
    }
    return $res;
}

sub list_dir {
    my ($dir, $args) = @_;

    my $uri_param = {};
    my ($handler, $info) = PMG::API2->find_handler('GET', $dir, $uri_param);
    if (!$handler || !$info) {
	die "no such resource\n";
    }

    if (!PVE::JSONSchema::method_get_child_link($info)) {
	die "resource does not define child links\n";
    }

    my ($node, $remip) = check_proxyto($info, $uri_param);
    return proxy_handler($node, $remip, $dir, 'ls', $args) if $node;


    my $data = $handler->cli_handler("ls $dir", $info->{name}, $args, [], $uri_param, $read_password); 
    my $lnk = PVE::JSONSchema::method_get_child_link($info);
    my $children = extract_children($lnk, $data);

    foreach my $c (@$children) {
	my $cap = resource_cap(abs_path($dir, $c));
	print "$cap $c\n";
    }
}

sub pmg_command {
    my ($args, $nooutput) = @_;

    $rpcenv->init_request();

    $rpcenv->set_ticket($ticket);

    my $cmd = shift @$args;

    if ($cmd eq 'cd') {

	my $path =  shift @$args;

	die "usage: cd [dir]\n" if scalar(@$args);

	if (!defined($path)) {
	    $cdir = '';
	    return;
	} else {
	    my $new_dir = abs_path($cdir, $path);
	    my ($handler, $info) = PMG::API2->find_handler('GET', $new_dir);
	    die "no such resource\n" if !$handler;
	    $cdir = $new_dir;
	}

    } elsif ($cmd eq 'help') {

	my $help_usage_error = sub {
	    die "usage: help [path] [--verbose]\n";
	};

	my $opts = {};

	&$help_usage_error() if !Getopt::Long::GetOptionsFromArray($args, $opts, 'verbose');

	my $path;
	if (scalar(@$args) && $args->[0] !~ m/^\-/)  {
	    $path = shift @$args;
	}

	&$help_usage_error() if scalar(@$args);

	print "help [path] [--verbose]\n";
	print "cd [path]\n";
	print "ls [path]\n\n";

	print_help(abs_path($cdir, $path), $opts);

    } elsif ($cmd eq 'ls') {
	my $path;
	if (scalar(@$args) && $args->[0] !~ m/^\-/)  {
	    $path = shift @$args;
	}

	list_dir(abs_path($cdir, $path), $args);

    } elsif ($cmd =~ m/^get|delete|set$/) {

	my $path;
	if (scalar(@$args) && $args->[0] !~ m/^\-/)  {
	    $path = shift @$args;
	}

	call_method(abs_path($cdir, $path), $cmd, $args);

    } elsif ($cmd eq 'create') {

	my $path;
	if (scalar(@$args) && $args->[0] !~ m/^\-/)  {
	    $path = shift @$args;
	}

	call_method(abs_path($cdir, $path), $cmd, $args, $nooutput);

    } else {
	die "unknown command '$cmd'\n";
    }

}

my $input;
while (defined ($input = $term->readline("pmg:/$cdir> "))) {
    chomp $input;

    next if $input =~ m/^\s*$/;

    if ($input =~ m/^\s*q(uit)?\s*$/) {
	exit (0);
    }

    # add input to history if it gets not
    # automatically added
    if (!$term->Features->{autohistory}) {
	$term->addhistory($input);
    }

    eval {
	my $args = [ shellwords($input) ];
	pmg_command($args);
    };
    warn $@ if $@;
}

__END__

=head1 NAME

pmgsh - shell interface to the Promox Mail Gateway API

=head1 SYNOPSIS

pmgsh [get|set|create|delete|help] [REST API path] [--verbose]

=head1 DESCRIPTION

pmgsh provides a shell-like interface to the Proxmox Mail Gateway API, in 
two different modes:

=over

=item interactive

when called without parameters, pmgsh starts an interactive client,
where you can navigate in the different parts of the API

=item command line

when started with parameters pmgsh will send a command to the
corresponding REST url, and will return the JSON formatted output

=back

=head1 EXAMPLES

get the list of nodes in my cluster

pmgsh get /nodes
Commit	Line	Data
1d18e90b DM	1	#!/usr/bin/perl
	2
	3	use strict;
	4	use warnings;
	5	use Term::ReadLine;
	6	use File::Basename;
	7	use Getopt::Long;
	8	use HTTP::Status qw(:constants :is status_message);
	9	use Text::ParseWords;
	10
	11	use PVE::JSONSchema;
	12	use PVE::SafeSyslog;
	13	use PVE::INotify;
807a5c2e DM	14
807a5c2e DM	15	use PMG::RESTEnvironment;
1d18e90b	16
ba11e2d3	17	use PMG::Ticket;
1d18e90b DM	18	use PMG::Cluster;
1d18e90b DM	19	use PMG::API2;
ba11e2d3	20
1d18e90b DM	21	use JSON;
	22
	23	PVE::INotify::inotify_init();
	24
807a5c2e	25	my $rpcenv = PMG::RESTEnvironment->init('cli');
1d18e90b DM	26
1d18e90b DM	27	$rpcenv->set_language($ENV{LANG});
ba11e2d3 DM	28	$rpcenv->set_user('root@pam');
ba11e2d3 DM	29	my $ticket = PMG::Ticket::assemble_ticket('root@pam');
1d18e90b DM	30
	31	my $logid = $ENV{PVE_LOG_ID} \|\| 'pmgsh';
	32	initlog($logid);
	33
	34	my $basedir = '/api2/json';
	35
	36	my $cdir = '';
	37
	38	sub print_usage {
	39	my $msg = shift;
	40
	41	print STDERR "ERROR: $msg\n" if $msg;
	42	print STDERR "USAGE: pmgsh [verifyapi]\n";
	43	print STDERR " pmgsh CMD [OPTIONS]\n";
	44
	45	}
	46
	47	my $disable_proxy = 0;
	48	my $opt_nooutput = 0;
	49
	50	my $cmd = shift;
	51
	52	my $optmatch;
	53	do {
	54	$optmatch = 0;
	55	if ($cmd) {
	56	if ($cmd eq '--noproxy') {
	57	$cmd = shift;
	58	$disable_proxy = 1;
	59	$optmatch = 1;
	60	} elsif ($cmd eq '--nooutput') {
	61	# we use this when starting task in CLI (suppress printing upid)
	62	$cmd = shift;
	63	$opt_nooutput = 1;
	64	$optmatch = 1;
	65	}
	66	}
	67	} while ($optmatch);
	68
	69	if ($cmd) {
	70	if ($cmd eq 'verifyapi') {
	71	PVE::RESTHandler::validate_method_schemas();
	72	exit 0;
	73	} elsif ($cmd eq 'ls' \|\| $cmd eq 'get' \|\| $cmd eq 'create' \|\|
	74	$cmd eq 'set' \|\| $cmd eq 'delete' \|\|$cmd eq 'help' ) {
	75	pmg_command([ $cmd, @ARGV], $opt_nooutput);
	76	exit(0);
	77	} else {
	78	print_usage ("unknown command '$cmd'");
	79	exit (-1);
	80	}
	81	}
	82
	83	if (scalar (@ARGV) != 0) {
	84	print_usage();
	85	exit(-1);
	86	}
	87
	88	print "entering PMG shell - type 'help' for help\n";
	89
	90	my $term = new Term::ReadLine('pmgsh');
	91	my $attribs = $term->Attribs;
	92
	93	sub complete_path {
94	my($text) = @_;
95
96	my ($dir, undef, $rest) = $text =~ m\|^(./)?(([^/]))?$\|;
97	my $path = abs_path($cdir, $dir);
98
99	my @res = ();
100
101	my $di = dir_info($path);
102	if (my $children = $di->{children}) {
103	foreach my $c (@$children) {
104	if ($c =~ /^\Q$rest/) {
105	my $new = $dir ? "$dir$c" : $c;
106	push @res, $new;
107	}
108	}
109	}
110
111	if (scalar(@res) == 0) {
112	return undef;
113	} elsif (scalar(@res) == 1) {
114	return ($res[0], $res[0], "$res[0]/");
115	}
116
117	# lcd : lowest common denominator
118	my $lcd = '';
119	my $tmp = $res[0];
120	for (my $i = 1; $i <= length($tmp); $i++) {
121	my $found = 1;
122	foreach my $p (@res) {
123	if (substr($tmp, 0, $i) ne substr($p, 0, $i)) {
124	$found = 0;
125	last;
126	}
127	}
128	if ($found) {
129	$lcd = substr($tmp, 0, $i);
130	} else {
131	last;
132	}
133	}
134
135	return ($lcd, @res);
136	};
137
138	# just to avoid an endless loop (called by attempted_completion_function)
139	$attribs->{completion_entry_function} = sub {
140	my($text, $state) = @_;
141	return undef;
142	};
143
144	$attribs->{attempted_completion_function} = sub {
145	my ($text, $line, $start) = @_;
146
147	my $prefix = substr($line, 0, $start);
148	if ($prefix =~ /^\s*$/) { # first word (command completeion)
149	$attribs->{completion_word} = [qw(help ls cd get set create delete quit)];
150	return $term->completion_matches($text, $attribs->{list_completion_function});
151	}
152
153	if ($prefix =~ /^\s*\S+\s+$/) { # second word (path completion)
154	return complete_path($text);
155	}
156
157	return ();
158	};
159
160	sub abs_path {
161	my ($current, $path) = @_;
162
163	my $ret = $current;
164
165	return $current if !defined($path);
166
167	$ret = '' if $path =~ m\|^\/\|;
168
169	foreach my $d (split (/\/+/ , $path)) {
170	if ($d eq '.') {
171	next;
172	} elsif ($d eq '..') {
173	$ret = dirname($ret);
174	$ret = '' if $ret eq '.';
175	} else {
176	$ret = "$ret/$d";
177	}
178	}
179
180	$ret =~ s\|\/+\|\/\|g;
181	$ret =~ s\|^\/\|\|;
182	$ret =~ s\|\/$\|\|;
183
184	return $ret;
185	}
186
187	my $read_password = sub {
188	my $attribs = $term->Attribs;
189	my $old = $attribs->{redisplay_function};
190	$attribs->{redisplay_function} = $attribs->{shadow_redisplay};
191	my $input = $term->readline('password: ');
192	my $conf = $term->readline('Retype new password: ');
193	$attribs->{redisplay_function} = $old;
194
195	# remove password from history
196	if ($term->Features->{autohistory}) {
197	my $historyPosition = $term->where_history();
198	$term->remove_history($historyPosition);
199	$term->remove_history($historyPosition - 1);
200	}
201
202	die "Passwords do not match.\n" if ($input ne $conf);
203	return $input;
204	};
205
206	sub reverse_map_cmd {
207	my $method = shift;
208
209	my $mmap = {
210	GET => 'get',
211	PUT => 'set',
212	POST => 'create',
213	DELETE => 'delete',
214	};
215
216	my $cmd = $mmap->{$method};
217
218	die "got strange value for method ('$method') - internal error" if !$cmd;
219
220	return $cmd;
221	}
222
223	sub map_cmd {
224	my $cmd = shift;
225
226	my $mmap = {
227	create => 'POST',
228	set => 'PUT',
229	get => 'GET',
230	ls => 'GET',
231	delete => 'DELETE',
232	};
233
234	my $method = $mmap->{$cmd};
235
236	die "unable to map method" if !$method;
237
238	return $method;
239	}
240
241	sub check_proxyto {
242	my ($info, $uri_param) = @_;
243
244	if ($info->{proxyto}) {
245	my $pn = $info->{proxyto};
0fb55414 DM	246	my $node;
	247	if ($pn eq 'master') {
	248	$node = PMG::Cluster::get_master_node();
	249	} else {
	250	$node = $uri_param->{$pn};
	251	die "proxy parameter '$pn' does not exists" if !$node;
	252	}
1d18e90b DM	253
	254	if ($node ne 'localhost' && ($node ne PVE::INotify::nodename())) {
	255	die "proxy loop detected - aborting\n" if $disable_proxy;
	256	my $remip = PMG::Cluster::remote_node_ip($node);
	257	return ($node, $remip);
	258	}
	259	}
	260
	261	return undef;
	262	}
	263
	264	sub proxy_handler {
	265	my ($node, $remip, $dir, $cmd, $args) = @_;
	266
	267	my $remcmd = ['ssh', '-o', 'BatchMode=yes', "root\@$remip",
	268	'pmgsh', '--noproxy', $cmd, $dir, @$args];
	269
	270	system(@$remcmd) == 0 \|\| die "proxy handler failed\n";
	271	}
	272
	273	sub call_method {
	274	my ($dir, $cmd, $args, $nooutput) = @_;
	275
	276	my $method = map_cmd($cmd);
	277
	278	my $uri_param = {};
	279	my ($handler, $info) = PMG::API2->find_handler($method, $dir, $uri_param);
	280	if (!$handler \|\| !$info) {
	281	die "no '$cmd' handler for '$dir'\n";
	282	}
	283
	284	my ($node, $remip) = check_proxyto($info, $uri_param);
	285	return proxy_handler($node, $remip, $dir, $cmd, $args) if $node;
	286
	287	my $data = $handler->cli_handler("$cmd $dir", $info->{name}, $args, [], $uri_param, $read_password);
	288
	289	return if $nooutput;
	290
	291	warn "200 OK\n"; # always print OK status if successful
	292
	293	if ($info && $info->{returns} && $info->{returns}->{type}) {
	294	my $rtype = $info->{returns}->{type};
	295
	296	return if $rtype eq 'null';
	297
	298	if ($rtype eq 'string') {
	299	print $data if $data;
	300	return;
	301	}
	302	}
	303
	304	print to_json($data, {utf8 => 1, allow_nonref => 1, canonical => 1, pretty => 1 });
	305
	306	return;
	307	}
	308
	309	sub find_resource_methods {
	310	my ($path, $ihash) = @_;
	311
	312	for my $method (qw(GET POST PUT DELETE)) {
	313	my $uri_param = {};
	314	my $path_match;
	315	my ($handler, $info) = PMG::API2->find_handler($method, $path, $uri_param, \$path_match);
	316	if ($handler && $info && !$ihash->{$info}) {
317	$ihash->{$info} = {
318	path => $path_match,
319	handler => $handler,
320	info => $info,
321	uri_param => $uri_param,
322	};
323	}
324	}
325	}
326
327	sub print_help {
328	my ($path, $opts) = @_;
329
330	my $ihash = {};
331
332	find_resource_methods($path, $ihash);
333
334	if (!scalar(keys(%$ihash))) {
335	die "no such resource\n";
336	}
337
338	my $di = dir_info($path);
339	if (my $children = $di->{children}) {
340	foreach my $c (@$children) {
341	my $cp = abs_path($path, $c);
342	find_resource_methods($cp, $ihash);
343	}
344	}
345
346	foreach my $mi (sort { $a->{path} cmp $b->{path} } values %$ihash) {
347	my $method = $mi->{info}->{method};
348
349	# we skip index methods for now.
350	next if ($method eq 'GET') && PVE::JSONSchema::method_get_child_link($mi->{info});
351
352	my $path = $mi->{path};
353	$path =~ s\|/+$\|\|; # remove trailing slash
354
355	my $cmd = reverse_map_cmd($method);
356
357	print $mi->{handler}->usage_str($mi->{info}->{name}, "$cmd $path", [], $mi->{uri_param},
358	$opts->{verbose} ? 'full' : 'short', 1);
359	print "\n\n" if $opts->{verbose};
360	}
361
362	};
363
364	sub resource_cap {
365	my ($path) = @_;
366
367	my $res = '';
368
369	my ($handler, $info) = PMG::API2->find_handler('GET', $path);
370	if (!($handler && $info)) {
371	$res .= '--';
372	} else {
373	if (PVE::JSONSchema::method_get_child_link($info)) {
374	$res .= 'Dr';
375	} else {
376	$res .= '-r';
377	}
378	}
379
380	($handler, $info) = PMG::API2->find_handler('PUT', $path);
381	if (!($handler && $info)) {
382	$res .= '-';
383	} else {
384	$res .= 'w';
385	}
386
387	($handler, $info) = PMG::API2->find_handler('POST', $path);
388	if (!($handler && $info)) {
389	$res .= '-';
390	} else {
391	$res .= 'c';
392	}
393
394	($handler, $info) = PMG::API2->find_handler('DELETE', $path);
395	if (!($handler && $info)) {
396	$res .= '-';
397	} else {
398	$res .= 'd';
399	}
400
401	return $res;
402	}
403
404	sub extract_children {
405	my ($lnk, $data) = @_;
406
407	my $res = [];
408
409	return $res if !($lnk && $data);
410
411	my $href = $lnk->{href};
412	if ($href =~ m/^\{(\S+)\}$/) {
413	my $prop = $1;
414
415	foreach my $elem (sort {$a->{$prop} cmp $b->{$prop}} @$data) {
416	next if !ref($elem);
417	my $value = $elem->{$prop};
418	push @$res, $value;
419	}
420	}
421
422	return $res;
423	}
424
425	sub dir_info {
426	my ($path) = @_;
427
428	my $res = { path => $path };
429	my $uri_param = {};
430	my ($handler, $info, $pm) = PMG::API2->find_handler('GET', $path, $uri_param);
431	if ($handler && $info) {
432	eval {
433	my $data = $handler->handle($info, $uri_param);
434	my $lnk = PVE::JSONSchema::method_get_child_link($info);
435	$res->{children} = extract_children($lnk, $data);
436	}; # ignore errors ?
437	}
438	return $res;
439	}
440
441	sub list_dir {
442	my ($dir, $args) = @_;
443
444	my $uri_param = {};
445	my ($handler, $info) = PMG::API2->find_handler('GET', $dir, $uri_param);
446	if (!$handler \|\| !$info) {
447	die "no such resource\n";
448	}
449
450	if (!PVE::JSONSchema::method_get_child_link($info)) {
451	die "resource does not define child links\n";
452	}
453
454	my ($node, $remip) = check_proxyto($info, $uri_param);
455	return proxy_handler($node, $remip, $dir, 'ls', $args) if $node;
456
457
458	my $data = $handler->cli_handler("ls $dir", $info->{name}, $args, [], $uri_param, $read_password);
459	my $lnk = PVE::JSONSchema::method_get_child_link($info);
460	my $children = extract_children($lnk, $data);
461
462	foreach my $c (@$children) {
463	my $cap = resource_cap(abs_path($dir, $c));
464	print "$cap $c\n";
465	}
466	}
467
468	sub pmg_command {
469	my ($args, $nooutput) = @_;
470
471	$rpcenv->init_request();
472
ba11e2d3 DM	473	$rpcenv->set_ticket($ticket);
ba11e2d3 DM	474
1d18e90b DM	475	my $cmd = shift @$args;
	476
	477	if ($cmd eq 'cd') {
	478
	479	my $path = shift @$args;
	480
	481	die "usage: cd [dir]\n" if scalar(@$args);
	482
	483	if (!defined($path)) {
	484	$cdir = '';
	485	return;
	486	} else {
	487	my $new_dir = abs_path($cdir, $path);
	488	my ($handler, $info) = PMG::API2->find_handler('GET', $new_dir);
	489	die "no such resource\n" if !$handler;
	490	$cdir = $new_dir;
	491	}
	492
	493	} elsif ($cmd eq 'help') {
	494
	495	my $help_usage_error = sub {
	496	die "usage: help [path] [--verbose]\n";
	497	};
	498
	499	my $opts = {};
	500
	501	&$help_usage_error() if !Getopt::Long::GetOptionsFromArray($args, $opts, 'verbose');
	502
	503	my $path;
	504	if (scalar(@$args) && $args->[0] !~ m/^\-/) {
	505	$path = shift @$args;
	506	}
	507
	508	&$help_usage_error() if scalar(@$args);
	509
	510	print "help [path] [--verbose]\n";
	511	print "cd [path]\n";
	512	print "ls [path]\n\n";
	513
	514	print_help(abs_path($cdir, $path), $opts);
	515
	516	} elsif ($cmd eq 'ls') {
	517	my $path;
	518	if (scalar(@$args) && $args->[0] !~ m/^\-/) {
	519	$path = shift @$args;
	520	}
	521
	522	list_dir(abs_path($cdir, $path), $args);
	523
	524	} elsif ($cmd =~ m/^get\|delete\|set$/) {
	525
	526	my $path;
	527	if (scalar(@$args) && $args->[0] !~ m/^\-/) {
	528	$path = shift @$args;
	529	}
	530
	531	call_method(abs_path($cdir, $path), $cmd, $args);
	532
	533	} elsif ($cmd eq 'create') {
	534
	535	my $path;
	536	if (scalar(@$args) && $args->[0] !~ m/^\-/) {
	537	$path = shift @$args;
	538	}
539
540	call_method(abs_path($cdir, $path), $cmd, $args, $nooutput);
541
542	} else {
543	die "unknown command '$cmd'\n";
544	}
545
546	}
547
548	my $input;
549	while (defined ($input = $term->readline("pmg:/$cdir> "))) {
550	chomp $input;
551
552	next if $input =~ m/^\s*$/;
553
554	if ($input =~ m/^\sq(uit)?\s$/) {
555	exit (0);
556	}
557
558	# add input to history if it gets not
559	# automatically added
560	if (!$term->Features->{autohistory}) {
561	$term->addhistory($input);
562	}
563
564	eval {
565	my $args = [ shellwords($input) ];
566	pmg_command($args);
567	};
568	warn $@ if $@;
569	}
570
571	__END__
572
573	=head1 NAME
574
575	pmgsh - shell interface to the Promox Mail Gateway API
576
577	=head1 SYNOPSIS
578
579	pmgsh [get\|set\|create\|delete\|help] [REST API path] [--verbose]
580
581	=head1 DESCRIPTION
582
583	pmgsh provides a shell-like interface to the Proxmox Mail Gateway API, in
584	two different modes:
585
586	=over
587
588	=item interactive
589
590	when called without parameters, pmgsh starts an interactive client,
591	where you can navigate in the different parts of the API
592
593	=item command line
594
595	when started with parameters pmgsh will send a command to the
596	corresponding REST url, and will return the JSON formatted output
597
598	=back
599
600	=head1 EXAMPLES
601
602	get the list of nodes in my cluster
603
604	pmgsh get /nodes
605