src/PVE/ACME/DNSChallenge.pm

   1 package PVE::ACME::DNSChallenge;
   2
   3 use strict;
   4 use warnings;
   5
   6 use Digest::SHA qw(sha256);
   7 use PVE::Tools;
   8
   9 use PVE::ACME;
  10
  11 use base qw(PVE::ACME::Challenge);
  12
  13 my $ACME_PATH = '/usr/share/proxmox-acme/proxmox-acme';
  14
  15 sub supported_challenge_types {
  16     return ["dns-01"];
  17 }
  18
  19 sub type {
  20     return 'dns';
  21 }
  22
  23 # describe the data schema of the supported plugins, e.g.:
  24 #    'dnsprovider' => {
  25 #       name => 'Full name of Plugin',
  26 #       fields => {
  27 #           'FOO_API_KEY' => {
  28 #               description => "The API key",
  29 #               default => "none",
  30 #               optional => 1,
  31 #               type => 'string',
  32 #           },
  33 #           # ...
  34 #       },
  35 #    },
  36 my $plugins = {
  37     '1984hosting' => {},
  38     'acmedns' => {
  39         name => 'acme-dns',
  40         fields => {
  41             'ACMEDNS_UPDATE_URL' => {
  42                 description => 'The API update endpoint',
  43                 type => 'string',
  44             },
  45             'ACMEDNS_USERNAME' => {
  46                 description => 'The acme-dns user',
  47                 type => 'string',
  48             },
  49             'ACMEDNS_PASSWORD' => {
  50                 description => 'The acme-dns password',
  51                 type => 'string',
  52             },
  53             'ACMEDNS_SUBDOMAIN' => {
  54                 description => 'The subdomain you got from acme-dns registration',
  55                 type => 'string',
  56             },
  57         },
  58     },
  59     'acmeproxy' => {},
  60     'active24' => {
  61         name => 'Active24',
  62         fields => {
  63             'ACTIVE24_Token' => {
  64                 description => "The API key",
  65                 type => 'string',
  66             },
  67         },
  68     },
  69     'ad' => {
  70         name => 'Alwaysdata',
  71         fields => {
  72             'AD_API_KEY' => {
  73                 description => "The API key",
  74                 type => 'string',
  75             },
  76         },
  77     },
  78     'ali' => {
  79         name => 'Alibaba Cloud DNS',
  80         fields => {
  81             'Ali_API' => {
  82                 description => 'The API endpoint',
  83                 default => "https://alidns.aliyuncs.com/",
  84                 type => 'string',
  85                 optional => 1,
  86             },
  87             'Ali_Key' => {
  88                 description => 'The API Key',
  89                 type => 'string',
  90             },
  91             'Ali_Secret' => {
  92                 description => 'The API Secret',
  93                 type => 'string',
  94             },
  95         },
  96     },
  97     'anx' => {},
  98     'arvan' => {},
  99     'autodns' => {},
 100     'aws' => {
 101         name => 'Amazon Route53 (AWS)',
 102         fields => {
 103             'AWS_ACCESS_KEY_ID' => {
 104                 name => 'ACCESS_KEY_ID',
 105                 description => 'The AWS access-key ID',
 106                 type => 'string',
 107             },
 108             'AWS_SECRET_ACCESS_KEY' => {
 109                 name => 'SECRET_ACCESS_KEY',
 110                 description => 'The AWS access-key secret',
 111                 type => 'string',
 112             },
 113         },
 114     },
 115     'azure' => {},
 116     'cf' => {
 117         name => 'Cloudflare Managed DNS',
 118         description => 'Either provide global account key and email, or CF API token and Account ID.',
 119         fields => {
 120             'CF_Key' => {
 121                 description => 'The Cloudflare Global API Key',
 122                 type => 'string',
 123             },
 124             'CF_Email' => {
 125                 description => 'The Cloudflare Account EMail-Address',
 126                 type => 'string',
 127             },
 128             'CF_Token' => {
 129                 description => 'The new Cloudflare API Token',
 130                 type => 'string',
 131             },
 132             'CF_Account_ID' => {
 133                 description => 'The new Cloudflare API Account ID',
 134                 type => 'string',
 135             },
 136             'CF_Zone_ID' => {
 137                 description => 'For Zone restricted API Token',
 138                 type => 'string',
 139             },
 140         },
 141     },
 142     'clouddns' => {},
 143     'cloudns' => {},
 144     'cn' => {},
 145     'conoha' => {},
 146     'constellix' => {},
 147     'cx' => {},
 148     'cyon' => {},
 149     'da' => {},
 150     'ddnss' => {},
 151     'desec' => {},
 152     'df' => {},
 153     'dgon' => {
 154         name => 'DigitalOcean DNS',
 155         fields => {
 156             'DO_API_KEY' => {
 157                 description => 'The DigitalOcean API Key',
 158                 type => 'string',
 159             },
 160         },
 161     },
 162     'dnsimple' => {},
 163     'do' => {},
 164     'doapi' => {},
 165     'domeneshop' => {},
 166     'dp' => {},
 167     'dpi' => {},
 168     'dreamhost' => {},
 169     'duckdns' => {},
 170     'durabledns' => {},
 171     'dyn' => {},
 172     'dynu' => {},
 173     'dynv6' => {},
 174     'easydns' => {},
 175     'edgedns' => {},
 176     'euserv' => {},
 177     'exoscale' => {},
 178     'freedns' => {},
 179     'gandi_livedns' => {},
 180     'gcloud' => {},
 181     'gd' => {
 182         name => 'GoDaddy',
 183         fields => {
 184             'GD_Key' => {
 185                 description => 'The GoDaddy API Key',
 186                 type => 'string',
 187             },
 188             'GD_Secret' => {
 189                 description => 'The GoDaddy API Secret',
 190                 type => 'string',
 191             },
 192         },
 193     },
 194     'gdnsdk' => {},
 195     'he' => {},
 196     'hetzner' => {},
 197     'hexonet' => {},
 198     'hostingde' => {},
 199     'huaweicloud' => {},
 200     'infoblox' => {},
 201     'infomaniak' => {},
 202     'internetbs' => {},
 203     'inwx' => {
 204         name => 'INWX',
 205         fields => {
 206             'INWX_User' => {
 207                 description => 'The INWX username',
 208                 type => 'string',
 209             },
 210             'INWX_Password' => {
 211                 description => 'The INWX password',
 212                 type => 'string',
 213             },
 214         },
 215     },
 216     'ispconfig' => {},
 217     'jd' => {},
 218     'joker' => {},
 219     'kappernet' => {
 220         name => 'kapper.net',
 221         fields => {
 222             'KAPPERNETDNS_Key' => {
 223                 description => 'Your kapper.net API key',
 224                 type => 'string',
 225             },
 226             'KAPPERNETDNS_Secret' => {
 227                 description => 'Your kapper.net API secret',
 228                 type => 'string',
 229             },
 230         },
 231     },
 232     'kas' => {},
 233     'kinghost' => {},
 234     'knot' => {},
 235     'leaseweb' => {},
 236     'lexicon' => {},
 237     'linode' => {},
 238     'linode_v4' => {},
 239     'loopia' => {},
 240     'lua' => {},
 241     'maradns' => {},
 242     'me' => {},
 243     'miab' => {},
 244     'misaka' => {},
 245     'myapi' => {},
 246     'mydevil' => {},
 247     'mydnsjp' => {},
 248     'namecheap' => {},
 249     'namecom' => {},
 250     'namesilo' => {},
 251     'nederhost' => {},
 252     'neodigit' => {},
 253     'netcup' => {},
 254     'netlify' => {},
 255     'nic' => {},
 256     'njalla' => {},
 257     'nm' => {},
 258     'nsd' => {},
 259     'nsone' => {},
 260     'nsupdate' => {},
 261     'nw' => {},
 262     'one' => {},
 263     'online' => {},
 264     'openprovider' => {},
 265     'openstack' => {},
 266     'opnsense' => {},
 267     'ovh' => {
 268         name => 'OVH',
 269         fields => {
 270             'OVH_END_POINT' => {
 271                 description => "The OVH endpoint",
 272                 default => "ovh-eu",
 273                 optional => 1,
 274                 type => 'string',
 275             },
 276             'OVH_AK' => {
 277                 description => "The application key.",
 278                 type => 'string',
 279             },
 280             'OVH_AS' => {
 281                 description => "The application secret.",
 282                 type => 'string',
 283             },
 284             'OVH_CK' => {
 285                 description => "The consumer key.",
 286                 optional => 1,
 287                 type => 'string',
 288             },
 289         },
 290     },
 291     'pdns' => {
 292         name => 'PowerDNS server',
 293         fields => {
 294             'PDNS_Url' => {
 295                 description => "The PowerDNS API endpoint.",
 296                 type => 'string',
 297             },
 298             'PDNS_ServerId'=> {
 299                 type => 'string',
 300             },
 301             'PDNS_Token'=> {
 302                 type => 'string',
 303             },
 304             'PDNS_Ttl'=> {
 305                 type => 'integer',
 306             },
 307         },
 308     },
 309     'pleskxml' => {},
 310     'pointhq' => {},
 311     'rackspace' => {},
 312     'rcode0' => {},
 313     'regru' => {},
 314     'schlundtech' => {},
 315     'selectel' => {},
 316     'servercow' => {},
 317     'tele3' => {},
 318     'transip' => {},
 319     'ultra' => {},
 320     'unoeuro' => {},
 321     'variomedia' => {},
 322     'vscale' => {},
 323     'vultr' => {},
 324     'world4you' => {},
 325     'yandex' => {},
 326     'zilore' => {},
 327     'zone' => {},
 328     'zonomi' => {},
 329 };
 330
 331 sub get_supported_plugins {
 332     return $plugins;
 333 }
 334
 335 sub properties {
 336     return {
 337         api => {
 338             description => "API plugin name",
 339             type => 'string',
 340             enum => [sort keys %$plugins],
 341         },
 342         data => {
 343             type => 'string',
 344             description => 'DNS plugin data. (base64 encoded)',
 345         },
 346         'validation-delay' => {
 347             type => 'integer',
 348             description => 'Extra delay in seconds to wait before requesting validation.'
 349                 .' Allows to cope with a long TTL of DNS records.',
 350             # low default, but our bet is that the acme-challenge domain isn't
 351             # cached at all, so it hopefully shouldn't run into TTL issues
 352             default => 30,
 353             optional => 1,
 354             minimum => 0,
 355             maximum => 2 * 24 * 60 * 60,
 356         }
 357     };
 358 }
 359
 360 sub options {
 361     return {
 362         api => {},
 363         data => { optional => 1 },
 364         nodes => { optional => 1 },
 365         disable => { optional => 1 },
 366         'validation-delay' => { optional => 1 },
 367     };
 368 }
 369
 370 my $proxmox_acme_command = sub {
 371     my ($self, $acme, $auth, $data, $action) = @_;
 372
 373     die "No plugin data for DNSChallenge\n" if !defined($data->{plugin});
 374
 375     my $alias = $data->{alias};
 376     my $domain = $auth->{identifier}->{value};
 377
 378     my $challenge = $self->extract_challenge($auth->{challenges});
 379     my $key_auth = $acme->key_authorization($challenge->{token});
 380
 381     my $txtvalue = PVE::ACME::encode(sha256($key_auth));
 382     my $dnsplugin = $data->{plugin}->{api};
 383     my $plugin_conf_string = $data->{plugin}->{data};
 384
 385     # for security reasons, we execute the command as nobody
 386     # we can't verify that the code of the DNSPlugins are harmless.
 387     my $cmd = ["setpriv", "--reuid", "nobody", "--regid", "nogroup", "--clear-groups", "--reset-env", "--"];
 388
 389     # The order of the parameters passed to proxmox-acme is important
 390     # proxmox-acme <setup|teardown> $plugin <$domain|$alias> $txtvalue [$plugin_conf_string]
 391     push @$cmd, "/bin/bash", $ACME_PATH, $action, $dnsplugin;
 392     if ($alias) {
 393         push @$cmd, $alias;
 394     } else {
 395         push @$cmd, $domain;
 396     }
 397     my $input = "$txtvalue\n";
 398     $input .= "$plugin_conf_string\n" if $plugin_conf_string;
 399
 400     PVE::Tools::run_command($cmd, input => $input);
 401
 402     $data->{url} = $challenge->{url};
 403
 404     return $domain;
 405 };
 406
 407 sub setup {
 408     my ($self, $acme, $auth, $data) = @_;
 409
 410     my $domain = $proxmox_acme_command->($self, $acme, $auth, $data, 'setup');
 411     print "Add TXT record: _acme-challenge.$domain\n";
 412
 413     my $delay = $data->{plugin}->{'validation-delay'} // 30;
 414     if ($delay > 0) {
 415         print "Sleeping $delay seconds to wait for TXT record propagation\n";
 416         sleep($delay); # don't care for EINTR
 417     }
 418 }
 419
 420 sub teardown {
 421     my ($self, $acme, $auth, $data) = @_;
 422
 423     my $domain = $proxmox_acme_command->($self, $acme, $auth, $data, 'teardown');
 424     print "Remove TXT record: _acme-challenge.$domain\n";
 425 }
 426
 427 1;