| 1 | # Movable Type (r) Open Source (C) 2001-2008 Six Apart, Ltd. |
|---|
| 2 | # This program is distributed under the terms of the |
|---|
| 3 | # GNU General Public License, version 2. |
|---|
| 4 | # |
|---|
| 5 | # $Id$ |
|---|
| 6 | |
|---|
| 7 | package MT::Asset; |
|---|
| 8 | |
|---|
| 9 | use strict; |
|---|
| 10 | use MT::Tag; # Holds MT::Taggable |
|---|
| 11 | use base qw( MT::Object MT::Taggable MT::Scorable ); |
|---|
| 12 | |
|---|
| 13 | __PACKAGE__->install_properties({ |
|---|
| 14 | column_defs => { |
|---|
| 15 | 'id' => 'integer not null auto_increment', |
|---|
| 16 | 'blog_id' => 'integer not null', |
|---|
| 17 | 'label' => 'string(255)', |
|---|
| 18 | 'url' => 'string(255)', |
|---|
| 19 | 'description' => 'text', |
|---|
| 20 | 'file_path' => 'string(255)', |
|---|
| 21 | 'file_name' => 'string(255)', |
|---|
| 22 | 'file_ext' => 'string(20)', |
|---|
| 23 | 'mime_type' => 'string(255)', |
|---|
| 24 | 'parent' => 'integer', |
|---|
| 25 | }, |
|---|
| 26 | indexes => { |
|---|
| 27 | label => 1, |
|---|
| 28 | file_ext => 1, |
|---|
| 29 | parent => 1, |
|---|
| 30 | created_by => 1, |
|---|
| 31 | created_on => 1, |
|---|
| 32 | blog_class_date => { |
|---|
| 33 | columns => ['blog_id','class','created_on'], |
|---|
| 34 | }, |
|---|
| 35 | }, |
|---|
| 36 | class_type => 'file', |
|---|
| 37 | audit => 1, |
|---|
| 38 | meta => 1, |
|---|
| 39 | datasource => 'asset', |
|---|
| 40 | primary_key => 'id', |
|---|
| 41 | }); |
|---|
| 42 | |
|---|
| 43 | require MT::Asset::Image; |
|---|
| 44 | require MT::Asset::Audio; |
|---|
| 45 | require MT::Asset::Video; |
|---|
| 46 | |
|---|
| 47 | sub extensions { |
|---|
| 48 | undef; |
|---|
| 49 | } |
|---|
| 50 | |
|---|
| 51 | # This property is a meta-property. |
|---|
| 52 | sub file_path { |
|---|
| 53 | my $asset = shift; |
|---|
| 54 | my $path = $asset->SUPER::file_path(@_); |
|---|
| 55 | return $path if defined($path) && ($path !~ m!^\$!) && (-f $path); |
|---|
| 56 | |
|---|
| 57 | $path = $asset->cache_property(sub { |
|---|
| 58 | my $path = $asset->SUPER::file_path(); |
|---|
| 59 | if ($path && ($path =~ m!^\%([ras])!)) { |
|---|
| 60 | my $blog = $asset->blog; |
|---|
| 61 | my $root = !$blog || $1 eq 's' ? MT->instance->static_file_path |
|---|
| 62 | : $1 eq 'r' ? $blog->site_path |
|---|
| 63 | : $blog->archive_path |
|---|
| 64 | ; |
|---|
| 65 | $root =~ s!(/|\\)$!!; |
|---|
| 66 | $path =~ s!^\%[ras]!$root!; |
|---|
| 67 | } |
|---|
| 68 | $path; |
|---|
| 69 | }, @_); |
|---|
| 70 | return $path; |
|---|
| 71 | } |
|---|
| 72 | |
|---|
| 73 | sub url { |
|---|
| 74 | my $asset = shift; |
|---|
| 75 | my $url = $asset->SUPER::url(@_); |
|---|
| 76 | return $url if defined($url) && ($url !~ m!^\%!) && ($url =~ m!^https://!); |
|---|
| 77 | |
|---|
| 78 | $url = $asset->cache_property(sub { |
|---|
| 79 | my $url = $asset->SUPER::url(); |
|---|
| 80 | if ($url =~ m!^\%([ras])!) { |
|---|
| 81 | my $blog = $asset->blog; |
|---|
| 82 | my $root = !$blog || $1 eq 's' ? MT->instance->static_path |
|---|
| 83 | : $1 eq 'r' ? $blog->site_url |
|---|
| 84 | : $blog->archive_url |
|---|
| 85 | ; |
|---|
| 86 | $root =~ s!/$!!; |
|---|
| 87 | $url =~ s!^\%[ras]!$root!; |
|---|
| 88 | } |
|---|
| 89 | return $url; |
|---|
| 90 | }, @_); |
|---|
| 91 | return $url; |
|---|
| 92 | } |
|---|
| 93 | |
|---|
| 94 | # Returns a localized name for the asset type. For MT::Asset, this is simply |
|---|
| 95 | # 'File'. |
|---|
| 96 | sub class_label { |
|---|
| 97 | MT->translate('Asset'); |
|---|
| 98 | } |
|---|
| 99 | |
|---|
| 100 | sub class_label_plural { |
|---|
| 101 | MT->translate("Assets"); |
|---|
| 102 | } |
|---|
| 103 | |
|---|
| 104 | # Removes the asset, associated tags and related file. |
|---|
| 105 | # TBD: Should we track and remove any generated thumbnail files here too? |
|---|
| 106 | sub remove { |
|---|
| 107 | my $asset = shift; |
|---|
| 108 | if (ref $asset) { |
|---|
| 109 | my $blog = MT::Blog->load($asset->blog_id); |
|---|
| 110 | require MT::FileMgr; |
|---|
| 111 | my $fmgr = $blog ? $blog->file_mgr : MT::FileMgr->new('Local'); |
|---|
| 112 | my $file = $asset->file_path; |
|---|
| 113 | $fmgr->delete($file); |
|---|
| 114 | $asset->remove_cached_files; |
|---|
| 115 | |
|---|
| 116 | # remove children. |
|---|
| 117 | my $class = ref $asset; |
|---|
| 118 | my $iter = __PACKAGE__->load_iter({ parent => $asset->id, class => '*' }); |
|---|
| 119 | while(my $a = $iter->()) { |
|---|
| 120 | $a->remove; |
|---|
| 121 | } |
|---|
| 122 | |
|---|
| 123 | # Remove MT::ObjectAsset records |
|---|
| 124 | $class = MT->model('objectasset'); |
|---|
| 125 | $iter = $class->load_iter({ asset_id => $asset->id }); |
|---|
| 126 | while (my $o = $iter->()) { |
|---|
| 127 | $o->remove; |
|---|
| 128 | } |
|---|
| 129 | } |
|---|
| 130 | |
|---|
| 131 | $asset->SUPER::remove(@_); |
|---|
| 132 | } |
|---|
| 133 | |
|---|
| 134 | sub save { |
|---|
| 135 | my $asset = shift; |
|---|
| 136 | if (defined $asset->file_ext) { |
|---|
| 137 | $asset->file_ext(lc($asset->file_ext)); |
|---|
| 138 | } |
|---|
| 139 | |
|---|
| 140 | unless ($asset->SUPER::save(@_)) { |
|---|
| 141 | print STDERR "error during save: " . $asset->errstr . "\n"; |
|---|
| 142 | die $asset->errstr; |
|---|
| 143 | } |
|---|
| 144 | } |
|---|
| 145 | |
|---|
| 146 | sub remove_cached_files { |
|---|
| 147 | my $asset = shift; |
|---|
| 148 | |
|---|
| 149 | # remove any asset cache files that exist for this asset |
|---|
| 150 | my $blog = $asset->blog; |
|---|
| 151 | if ($asset->id && $blog) { |
|---|
| 152 | my $cache_dir = $asset->_make_cache_path; |
|---|
| 153 | if ($cache_dir) { |
|---|
| 154 | require MT::FileMgr; |
|---|
| 155 | my $fmgr = $blog->file_mgr || MT::FileMgr->new('Local'); |
|---|
| 156 | if ($fmgr) { |
|---|
| 157 | my $basename = $asset->file_name; |
|---|
| 158 | my $ext = '.'.$asset->file_ext; |
|---|
| 159 | $basename =~ s/$ext$//; |
|---|
| 160 | my $cache_glob = File::Spec->catfile($cache_dir, |
|---|
| 161 | $basename . '-thumb-*' . $ext); |
|---|
| 162 | my @files = glob($cache_glob); |
|---|
| 163 | foreach my $file (@files) { |
|---|
| 164 | $fmgr->delete($file); |
|---|
| 165 | } |
|---|
| 166 | } |
|---|
| 167 | } |
|---|
| 168 | } |
|---|
| 169 | 1; |
|---|
| 170 | } |
|---|
| 171 | |
|---|
| 172 | sub blog { |
|---|
| 173 | my $asset = shift; |
|---|
| 174 | my $blog_id = $asset->blog_id or return undef; |
|---|
| 175 | return $asset->{__blog} if $blog_id && $asset->{__blog} && ($asset->{__blog}->id == $blog_id); |
|---|
| 176 | require MT::Blog; |
|---|
| 177 | return $asset->{__blog} = MT::Blog->load($blog_id) |
|---|
| 178 | or return $asset->error("Failed to load blog for file"); |
|---|
| 179 | } |
|---|
| 180 | |
|---|
| 181 | # Returns a true/false response based on whether the active package |
|---|
| 182 | # has extensions registered that match the requested filename. |
|---|
| 183 | sub can_handle { |
|---|
| 184 | my ($pkg, $filename) = @_; |
|---|
| 185 | # undef is returned from fileparse if the extension is not known. |
|---|
| 186 | require File::Basename; |
|---|
| 187 | my $ext = $pkg->extensions || []; |
|---|
| 188 | return (File::Basename::fileparse($filename, @$ext))[2] ? 1 : 0; |
|---|
| 189 | } |
|---|
| 190 | |
|---|
| 191 | # Given a filename, returns an appropriate MT::Asset class to associate |
|---|
| 192 | # with it. This lookup is based purely on file extension! If none can |
|---|
| 193 | # be found, it returns MT::Asset. |
|---|
| 194 | sub handler_for_file { |
|---|
| 195 | my $pkg = shift; |
|---|
| 196 | my ($filename) = @_; |
|---|
| 197 | my $types; |
|---|
| 198 | # special case to check for all registered classes, not just |
|---|
| 199 | # those that are subclasses of this package. |
|---|
| 200 | if ($pkg eq 'MT::Asset') { |
|---|
| 201 | $types = [ keys %{ $pkg->properties->{__type_to_class} || {} } ]; |
|---|
| 202 | } |
|---|
| 203 | $types ||= $pkg->type_list; |
|---|
| 204 | if ($types) { |
|---|
| 205 | foreach my $type (@$types) { |
|---|
| 206 | my $this_pkg = $pkg->class_handler($type); |
|---|
| 207 | if ($this_pkg->can_handle($filename)) { |
|---|
| 208 | return $this_pkg; |
|---|
| 209 | } |
|---|
| 210 | } |
|---|
| 211 | } |
|---|
| 212 | __PACKAGE__; |
|---|
| 213 | } |
|---|
| 214 | |
|---|
| 215 | sub type_list { |
|---|
| 216 | my $pkg = shift; |
|---|
| 217 | my $props = $pkg->properties; |
|---|
| 218 | my $col = $props->{class_column}; |
|---|
| 219 | my $this_type = $props->{class_type}; |
|---|
| 220 | my @classes = values %{ $props->{__class_to_type} }; |
|---|
| 221 | @classes = grep { m/^\Q$this_type\E:/ } @classes; |
|---|
| 222 | push @classes, $this_type; |
|---|
| 223 | return \@classes; |
|---|
| 224 | } |
|---|
| 225 | |
|---|
| 226 | sub metadata { |
|---|
| 227 | my $asset = shift; |
|---|
| 228 | return { |
|---|
| 229 | MT->translate("Tags") => MT::Tag->join(',', $asset->tags), |
|---|
| 230 | MT->translate("Description") => $asset->description, |
|---|
| 231 | MT->translate("Name") => $asset->label, |
|---|
| 232 | url => $asset->url, |
|---|
| 233 | MT->translate("URL") => $asset->url, |
|---|
| 234 | MT->translate("Location") => $asset->file_path, |
|---|
| 235 | name => $asset->file_name, |
|---|
| 236 | 'class' => $asset->class, |
|---|
| 237 | ext => $asset->file_ext, |
|---|
| 238 | mime_type => $asset->mime_type, |
|---|
| 239 | # duration => $asset->duration, |
|---|
| 240 | }; |
|---|
| 241 | } |
|---|
| 242 | |
|---|
| 243 | sub has_thumbnail { |
|---|
| 244 | 0; |
|---|
| 245 | } |
|---|
| 246 | |
|---|
| 247 | sub thumbnail_file { |
|---|
| 248 | undef; |
|---|
| 249 | } |
|---|
| 250 | |
|---|
| 251 | sub thumbnail_filename { |
|---|
| 252 | undef; |
|---|
| 253 | } |
|---|
| 254 | |
|---|
| 255 | sub stock_icon_url { |
|---|
| 256 | undef; |
|---|
| 257 | } |
|---|
| 258 | |
|---|
| 259 | sub thumbnail_url { |
|---|
| 260 | my $asset = shift; |
|---|
| 261 | my (%param) = @_; |
|---|
| 262 | |
|---|
| 263 | require File::Basename; |
|---|
| 264 | if (my ($thumbnail_file, $w, $h) = $asset->thumbnail_file(@_)) { |
|---|
| 265 | return $asset->stock_icon_url(@_) if !defined $thumbnail_file; |
|---|
| 266 | my $file = File::Basename::basename($thumbnail_file); |
|---|
| 267 | my $asset_file_path = $asset->SUPER::file_path(); |
|---|
| 268 | my $site_url; |
|---|
| 269 | my $blog = $asset->blog; |
|---|
| 270 | if (!$blog) { |
|---|
| 271 | $site_url = $param{Pseudo} ? '%s' : MT->instance->static_path; |
|---|
| 272 | $site_url .= '/' unless $site_url =~ m!/$!; |
|---|
| 273 | $site_url .= 'support/'; |
|---|
| 274 | } |
|---|
| 275 | elsif ( $asset_file_path =~ m/^%a/ ) { |
|---|
| 276 | $site_url = $param{Pseudo} ? '%a' : $blog->archive_url; |
|---|
| 277 | } |
|---|
| 278 | else { |
|---|
| 279 | $site_url = $param{Pseudo} ? '%r' : $blog->site_url; |
|---|
| 280 | } |
|---|
| 281 | |
|---|
| 282 | if ($file && $site_url) { |
|---|
| 283 | require MT::Util; |
|---|
| 284 | my $path = $param{Path}; |
|---|
| 285 | if (!defined $path) { |
|---|
| 286 | $path = MT::Util::caturl(MT->config('AssetCacheDir'), unpack('A4A2', $asset->created_on)); |
|---|
| 287 | } else { |
|---|
| 288 | require File::Spec; |
|---|
| 289 | my @path = File::Spec->splitdir($path); |
|---|
| 290 | $path = ''; |
|---|
| 291 | for my $p (@path) { |
|---|
| 292 | $path = MT::Util::caturl($path, $p); |
|---|
| 293 | } |
|---|
| 294 | } |
|---|
| 295 | $file =~ s/%([A-F0-9]{2})/chr(hex($1))/gei; |
|---|
| 296 | $site_url = MT::Util::caturl($site_url, $path, $file); |
|---|
| 297 | return ($site_url, $w, $h); |
|---|
| 298 | } |
|---|
| 299 | } |
|---|
| 300 | |
|---|
| 301 | # Use a stock icon |
|---|
| 302 | return $asset->stock_icon_url(@_); |
|---|
| 303 | } |
|---|
| 304 | |
|---|
| 305 | sub as_html { |
|---|
| 306 | my $asset = shift; |
|---|
| 307 | my ($param) = @_; |
|---|
| 308 | my $fname = $asset->file_name; |
|---|
| 309 | require MT::Util; |
|---|
| 310 | my $text = sprintf '<a href="%s">%s</a>', |
|---|
| 311 | MT::Util::encode_html($asset->url), |
|---|
| 312 | MT::Util::encode_html($fname); |
|---|
| 313 | return $asset->enclose($text); |
|---|
| 314 | } |
|---|
| 315 | |
|---|
| 316 | sub enclose { |
|---|
| 317 | my $asset = shift; |
|---|
| 318 | my ($html) = @_; |
|---|
| 319 | my $id = $asset->id; |
|---|
| 320 | my $type = $asset->class; |
|---|
| 321 | return qq{<form mt:asset-id="$id" class="mt-enclosure mt-enclosure-$type" style="display: inline;">$html</form>}; |
|---|
| 322 | } |
|---|
| 323 | |
|---|
| 324 | # Return a HTML snippet of form options for inserting this asset |
|---|
| 325 | # into a web page. Default behavior is no options. |
|---|
| 326 | sub insert_options { |
|---|
| 327 | my $asset = shift; |
|---|
| 328 | my ($param) = @_; |
|---|
| 329 | return undef; |
|---|
| 330 | } |
|---|
| 331 | |
|---|
| 332 | sub on_upload { |
|---|
| 333 | my $asset = shift; |
|---|
| 334 | my ($param) = @_; |
|---|
| 335 | 1; |
|---|
| 336 | } |
|---|
| 337 | |
|---|
| 338 | sub edit_template_param { |
|---|
| 339 | my $asset = shift; |
|---|
| 340 | my ($cb, $app, $param, $tmpl) = @_; |
|---|
| 341 | return; |
|---|
| 342 | } |
|---|
| 343 | |
|---|
| 344 | sub set_values_from_query { |
|---|
| 345 | my $asset = shift; |
|---|
| 346 | my ($q) = @_; |
|---|
| 347 | |
|---|
| 348 | # Set the known columns from the form, if they're set. Subclasses can |
|---|
| 349 | # opt out or decorate this behavior by overriding the method. |
|---|
| 350 | my $names = $asset->column_names; |
|---|
| 351 | my %values; |
|---|
| 352 | for my $field (@$names) { |
|---|
| 353 | $values{$field} = $q->param($field) |
|---|
| 354 | if defined $q->param($field); |
|---|
| 355 | } |
|---|
| 356 | $asset->set_values(\%values); |
|---|
| 357 | |
|---|
| 358 | 1; |
|---|
| 359 | } |
|---|
| 360 | |
|---|
| 361 | # $pseudo parameter causes function to return '%r' as |
|---|
| 362 | # root instead of blog site path |
|---|
| 363 | sub _make_cache_path { |
|---|
| 364 | my $asset = shift; |
|---|
| 365 | my ($path, $pseudo) = @_; |
|---|
| 366 | my $blog = $asset->blog; |
|---|
| 367 | |
|---|
| 368 | require File::Spec; |
|---|
| 369 | my $year_stamp = ''; |
|---|
| 370 | my $month_stamp = ''; |
|---|
| 371 | if (!defined $path) { |
|---|
| 372 | $year_stamp = unpack 'A4', $asset->created_on; |
|---|
| 373 | $month_stamp = unpack 'x4 A2', $asset->created_on; |
|---|
| 374 | $path = MT->config('AssetCacheDir'); |
|---|
| 375 | } else { |
|---|
| 376 | my $merge_path = ''; |
|---|
| 377 | my @split = File::Spec->splitdir($path); |
|---|
| 378 | for my $p (@split) { |
|---|
| 379 | $merge_path = File::Spec->catfile($merge_path, $p); |
|---|
| 380 | } |
|---|
| 381 | $path = $merge_path if $merge_path; |
|---|
| 382 | } |
|---|
| 383 | |
|---|
| 384 | my $asset_file_path = $asset->SUPER::file_path(); |
|---|
| 385 | my $format; |
|---|
| 386 | my $root_path; |
|---|
| 387 | if ( !$blog ) { |
|---|
| 388 | $format = '%s'; |
|---|
| 389 | $root_path = File::Spec->catdir(MT->instance->static_file_path, 'support'); |
|---|
| 390 | } |
|---|
| 391 | elsif ( $asset_file_path =~ m/^%a/ ) { |
|---|
| 392 | $format = '%a'; |
|---|
| 393 | $root_path = $blog->archive_path; |
|---|
| 394 | } |
|---|
| 395 | else { |
|---|
| 396 | $format = '%r'; |
|---|
| 397 | $root_path = $blog->site_path; |
|---|
| 398 | } |
|---|
| 399 | |
|---|
| 400 | my $real_cache_path = File::Spec->catdir($root_path, $path, $year_stamp, |
|---|
| 401 | $month_stamp); |
|---|
| 402 | if (!-d $real_cache_path) { |
|---|
| 403 | require MT::FileMgr; |
|---|
| 404 | my $fmgr = $blog ? $blog->file_mgr : MT::FileMgr->new('Local'); |
|---|
| 405 | $fmgr->mkpath($real_cache_path) or return undef; |
|---|
| 406 | } |
|---|
| 407 | |
|---|
| 408 | my $asset_cache_path = File::Spec->catdir(($pseudo ? $format : $root_path), |
|---|
| 409 | $path, $year_stamp, $month_stamp); |
|---|
| 410 | $asset_cache_path; |
|---|
| 411 | } |
|---|
| 412 | |
|---|
| 413 | 1; |
|---|
| 414 | |
|---|
| 415 | __END__ |
|---|
| 416 | |
|---|
| 417 | =head1 NAME |
|---|
| 418 | |
|---|
| 419 | MT::Asset |
|---|
| 420 | |
|---|
| 421 | =head1 SYNOPSIS |
|---|
| 422 | |
|---|
| 423 | use MT::Asset; |
|---|
| 424 | |
|---|
| 425 | # Example |
|---|
| 426 | |
|---|
| 427 | =head1 DESCRIPTION |
|---|
| 428 | |
|---|
| 429 | This module provides an object definition for a file that is placed under |
|---|
| 430 | MT's control for publishing. |
|---|
| 431 | |
|---|
| 432 | =head1 METHODS |
|---|
| 433 | |
|---|
| 434 | =head2 MT::Asset->new |
|---|
| 435 | |
|---|
| 436 | Constructs a new asset object. The base class is the generic asset object, |
|---|
| 437 | which represents a generic file. |
|---|
| 438 | |
|---|
| 439 | =head2 MT::Asset->handler_for_file($filename) |
|---|
| 440 | |
|---|
| 441 | Returns a I<MT::Asset> package suitable for the filename given. This |
|---|
| 442 | determination is typically made based on the file's extension. |
|---|
| 443 | |
|---|
| 444 | =head1 AUTHORS & COPYRIGHT |
|---|
| 445 | |
|---|
| 446 | Please see the I<MT> manpage for author, copyright, and license information. |
|---|
| 447 | |
|---|
| 448 | =cut |
|---|