| 1 | <?php |
|---|
| 2 | // +-----------------------------------------------------------------------+ |
|---|
| 3 | // | Piwigo - a PHP based photo gallery | |
|---|
| 4 | // +-----------------------------------------------------------------------+ |
|---|
| 5 | // | Copyright(C) 2008-2014 Piwigo Team http://piwigo.org | |
|---|
| 6 | // | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net | |
|---|
| 7 | // | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick | |
|---|
| 8 | // +-----------------------------------------------------------------------+ |
|---|
| 9 | // | This program is free software; you can redistribute it and/or modify | |
|---|
| 10 | // | it under the terms of the GNU General Public License as published by | |
|---|
| 11 | // | the Free Software Foundation | |
|---|
| 12 | // | | |
|---|
| 13 | // | This program is distributed in the hope that it will be useful, but | |
|---|
| 14 | // | WITHOUT ANY WARRANTY; without even the implied warranty of | |
|---|
| 15 | // | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|---|
| 16 | // | General Public License for more details. | |
|---|
| 17 | // | | |
|---|
| 18 | // | You should have received a copy of the GNU General Public License | |
|---|
| 19 | // | along with this program; if not, write to the Free Software | |
|---|
| 20 | // | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
|---|
| 21 | // | USA. | |
|---|
| 22 | // +-----------------------------------------------------------------------+ |
|---|
| 23 | |
|---|
| 24 | |
|---|
| 25 | /** |
|---|
| 26 | * returns a prefix for each url link on displayed page |
|---|
| 27 | * and return an empty string for current path |
|---|
| 28 | * @return string |
|---|
| 29 | */ |
|---|
| 30 | function get_root_url() |
|---|
| 31 | { |
|---|
| 32 | global $page; |
|---|
| 33 | if ( ($root_url = @$page['root_path']) == null ) |
|---|
| 34 | {// TODO - add HERE the possibility to call PWG functions from external scripts |
|---|
| 35 | $root_url = PHPWG_ROOT_PATH; |
|---|
| 36 | if ( strncmp($root_url, './', 2) == 0 ) |
|---|
| 37 | { |
|---|
| 38 | return substr($root_url, 2); |
|---|
| 39 | } |
|---|
| 40 | } |
|---|
| 41 | return $root_url; |
|---|
| 42 | } |
|---|
| 43 | |
|---|
| 44 | /** |
|---|
| 45 | * returns the absolute url to the root of PWG |
|---|
| 46 | * @param boolean with_scheme if false - does not add http://toto.com |
|---|
| 47 | */ |
|---|
| 48 | function get_absolute_root_url($with_scheme=true) |
|---|
| 49 | { |
|---|
| 50 | // TODO - add HERE the possibility to call PWG functions from external scripts |
|---|
| 51 | $url = ''; |
|---|
| 52 | if ($with_scheme) |
|---|
| 53 | { |
|---|
| 54 | $is_https = false; |
|---|
| 55 | if (isset($_SERVER['HTTPS']) && |
|---|
| 56 | ((strtolower($_SERVER['HTTPS']) == 'on') or ($_SERVER['HTTPS'] == 1))) |
|---|
| 57 | { |
|---|
| 58 | $is_https = true; |
|---|
| 59 | $url .= 'https://'; |
|---|
| 60 | } |
|---|
| 61 | else |
|---|
| 62 | { |
|---|
| 63 | $url .= 'http://'; |
|---|
| 64 | } |
|---|
| 65 | $url .= $_SERVER['HTTP_HOST']; |
|---|
| 66 | if ( (!$is_https && $_SERVER['SERVER_PORT'] != 80) |
|---|
| 67 | ||($is_https && $_SERVER['SERVER_PORT'] != 443)) |
|---|
| 68 | { |
|---|
| 69 | $url_port = ':'.$_SERVER['SERVER_PORT']; |
|---|
| 70 | if (strrchr($url, ':') != $url_port) |
|---|
| 71 | { |
|---|
| 72 | $url .= $url_port; |
|---|
| 73 | } |
|---|
| 74 | } |
|---|
| 75 | } |
|---|
| 76 | $url .= cookie_path(); |
|---|
| 77 | return $url; |
|---|
| 78 | } |
|---|
| 79 | |
|---|
| 80 | /** |
|---|
| 81 | * adds one or more _GET style parameters to an url |
|---|
| 82 | * example: add_url_params('/x', array('a'=>'b')) returns /x?a=b |
|---|
| 83 | * add_url_params('/x?cat_id=10', array('a'=>'b')) returns /x?cat_id=10&a=b |
|---|
| 84 | * @param string url |
|---|
| 85 | * @param array params |
|---|
| 86 | * @return string |
|---|
| 87 | */ |
|---|
| 88 | function add_url_params($url, $params, $arg_separator='&' ) |
|---|
| 89 | { |
|---|
| 90 | if ( !empty($params) ) |
|---|
| 91 | { |
|---|
| 92 | assert( is_array($params) ); |
|---|
| 93 | $is_first = true; |
|---|
| 94 | foreach($params as $param=>$val) |
|---|
| 95 | { |
|---|
| 96 | if ($is_first) |
|---|
| 97 | { |
|---|
| 98 | $is_first = false; |
|---|
| 99 | $url .= ( strpos($url, '?')===false ) ? '?' : $arg_separator; |
|---|
| 100 | } |
|---|
| 101 | else |
|---|
| 102 | { |
|---|
| 103 | $url .= $arg_separator; |
|---|
| 104 | } |
|---|
| 105 | $url .= $param; |
|---|
| 106 | if (isset($val)) |
|---|
| 107 | { |
|---|
| 108 | $url .= '='.$val; |
|---|
| 109 | } |
|---|
| 110 | } |
|---|
| 111 | } |
|---|
| 112 | return $url; |
|---|
| 113 | } |
|---|
| 114 | |
|---|
| 115 | /** |
|---|
| 116 | * build an index URL for a specific section |
|---|
| 117 | * |
|---|
| 118 | * @param array |
|---|
| 119 | * @return string |
|---|
| 120 | */ |
|---|
| 121 | function make_index_url($params = array()) |
|---|
| 122 | { |
|---|
| 123 | global $conf; |
|---|
| 124 | $url = get_root_url().'index'; |
|---|
| 125 | if ($conf['php_extension_in_urls']) |
|---|
| 126 | { |
|---|
| 127 | $url .= '.php'; |
|---|
| 128 | } |
|---|
| 129 | if ($conf['question_mark_in_urls']) |
|---|
| 130 | { |
|---|
| 131 | $url .= '?'; |
|---|
| 132 | } |
|---|
| 133 | |
|---|
| 134 | $url_before_params = $url; |
|---|
| 135 | |
|---|
| 136 | $url.= make_section_in_url($params); |
|---|
| 137 | $url = add_well_known_params_in_url($url, $params); |
|---|
| 138 | |
|---|
| 139 | if ($url == $url_before_params) |
|---|
| 140 | { |
|---|
| 141 | $url = get_absolute_root_url( url_is_remote($url) ); |
|---|
| 142 | } |
|---|
| 143 | |
|---|
| 144 | return $url; |
|---|
| 145 | } |
|---|
| 146 | |
|---|
| 147 | /** |
|---|
| 148 | * build an index URL with current page parameters, but with redefinitions |
|---|
| 149 | * and removes. |
|---|
| 150 | * |
|---|
| 151 | * duplicate_index_url( array( |
|---|
| 152 | * 'category' => array('id'=>12, 'name'=>'toto'), |
|---|
| 153 | * array('start') |
|---|
| 154 | * ) will create an index URL on the current section (categories), but on |
|---|
| 155 | * a redefined category and without the start URL parameter. |
|---|
| 156 | * |
|---|
| 157 | * @param array redefined keys |
|---|
| 158 | * @param array removed keys |
|---|
| 159 | * @return string |
|---|
| 160 | */ |
|---|
| 161 | function duplicate_index_url($redefined = array(), $removed = array()) |
|---|
| 162 | { |
|---|
| 163 | return make_index_url( |
|---|
| 164 | params_for_duplication($redefined, $removed) |
|---|
| 165 | ); |
|---|
| 166 | } |
|---|
| 167 | |
|---|
| 168 | /** |
|---|
| 169 | * returns $page global array with key redefined and key removed |
|---|
| 170 | * |
|---|
| 171 | * @param array redefined keys |
|---|
| 172 | * @param array removed keys |
|---|
| 173 | * @return array |
|---|
| 174 | */ |
|---|
| 175 | function params_for_duplication($redefined, $removed) |
|---|
| 176 | { |
|---|
| 177 | global $page; |
|---|
| 178 | |
|---|
| 179 | $params = $page; |
|---|
| 180 | |
|---|
| 181 | foreach ($removed as $param_key) |
|---|
| 182 | { |
|---|
| 183 | unset($params[$param_key]); |
|---|
| 184 | } |
|---|
| 185 | |
|---|
| 186 | foreach ($redefined as $redefined_param => $redefined_value) |
|---|
| 187 | { |
|---|
| 188 | $params[$redefined_param] = $redefined_value; |
|---|
| 189 | } |
|---|
| 190 | |
|---|
| 191 | return $params; |
|---|
| 192 | } |
|---|
| 193 | |
|---|
| 194 | /** |
|---|
| 195 | * create a picture URL with current page parameters, but with redefinitions |
|---|
| 196 | * and removes. See duplicate_index_url. |
|---|
| 197 | * |
|---|
| 198 | * @param array redefined keys |
|---|
| 199 | * @param array removed keys |
|---|
| 200 | * @return string |
|---|
| 201 | */ |
|---|
| 202 | function duplicate_picture_url($redefined = array(), $removed = array()) |
|---|
| 203 | { |
|---|
| 204 | return make_picture_url( |
|---|
| 205 | params_for_duplication($redefined, $removed) |
|---|
| 206 | ); |
|---|
| 207 | } |
|---|
| 208 | |
|---|
| 209 | /** |
|---|
| 210 | * create a picture URL on a specific section for a specific picture |
|---|
| 211 | * |
|---|
| 212 | * @param array |
|---|
| 213 | * @return string |
|---|
| 214 | */ |
|---|
| 215 | function make_picture_url($params) |
|---|
| 216 | { |
|---|
| 217 | global $conf; |
|---|
| 218 | |
|---|
| 219 | isset($params['image_id']) or fatal_error('make_picture_url: image_id is a required parameter'); |
|---|
| 220 | |
|---|
| 221 | $url = get_root_url().'picture'; |
|---|
| 222 | if ($conf['php_extension_in_urls']) |
|---|
| 223 | { |
|---|
| 224 | $url .= '.php'; |
|---|
| 225 | } |
|---|
| 226 | if ($conf['question_mark_in_urls']) |
|---|
| 227 | { |
|---|
| 228 | $url .= '?'; |
|---|
| 229 | } |
|---|
| 230 | $url.= '/'; |
|---|
| 231 | switch ( $conf['picture_url_style'] ) |
|---|
| 232 | { |
|---|
| 233 | case 'id-file': |
|---|
| 234 | $url .= $params['image_id']; |
|---|
| 235 | if ( isset($params['image_file']) ) |
|---|
| 236 | { |
|---|
| 237 | $url .= '-'.str2url(get_filename_wo_extension($params['image_file'])); |
|---|
| 238 | } |
|---|
| 239 | break; |
|---|
| 240 | case 'file': |
|---|
| 241 | if ( isset($params['image_file']) ) |
|---|
| 242 | { |
|---|
| 243 | $fname_wo_ext = get_filename_wo_extension($params['image_file']); |
|---|
| 244 | if ( ord($fname_wo_ext)>ord('9') or !preg_match('/^\d+(-|$)/', $fname_wo_ext) ) |
|---|
| 245 | { |
|---|
| 246 | $url .= $fname_wo_ext; |
|---|
| 247 | break; |
|---|
| 248 | } |
|---|
| 249 | } |
|---|
| 250 | default: |
|---|
| 251 | $url .= $params['image_id']; |
|---|
| 252 | } |
|---|
| 253 | if ( !isset($params['category'] ) ) |
|---|
| 254 | {// make urls shorter ... |
|---|
| 255 | unset( $params['flat'] ); |
|---|
| 256 | } |
|---|
| 257 | $url .= make_section_in_url($params); |
|---|
| 258 | $url = add_well_known_params_in_url($url, $params); |
|---|
| 259 | return $url; |
|---|
| 260 | } |
|---|
| 261 | |
|---|
| 262 | /** |
|---|
| 263 | *adds to the url the chronology and start parameters |
|---|
| 264 | */ |
|---|
| 265 | function add_well_known_params_in_url($url, $params) |
|---|
| 266 | { |
|---|
| 267 | if ( isset($params['chronology_field']) ) |
|---|
| 268 | { |
|---|
| 269 | $url .= '/'. $params['chronology_field']; |
|---|
| 270 | $url .= '-'. $params['chronology_style']; |
|---|
| 271 | if ( isset($params['chronology_view']) ) |
|---|
| 272 | { |
|---|
| 273 | $url .= '-'. $params['chronology_view']; |
|---|
| 274 | } |
|---|
| 275 | if ( !empty($params['chronology_date']) ) |
|---|
| 276 | { |
|---|
| 277 | $url .= '-'. implode('-', $params['chronology_date'] ); |
|---|
| 278 | } |
|---|
| 279 | } |
|---|
| 280 | |
|---|
| 281 | if (isset($params['flat'])) |
|---|
| 282 | { |
|---|
| 283 | $url.= '/flat'; |
|---|
| 284 | } |
|---|
| 285 | |
|---|
| 286 | if (isset($params['start']) and $params['start'] > 0) |
|---|
| 287 | { |
|---|
| 288 | $url.= '/start-'.$params['start']; |
|---|
| 289 | } |
|---|
| 290 | return $url; |
|---|
| 291 | } |
|---|
| 292 | |
|---|
| 293 | /** |
|---|
| 294 | * return the section token of an index or picture URL. |
|---|
| 295 | * |
|---|
| 296 | * Depending on section, other parameters are required (see function code |
|---|
| 297 | * for details) |
|---|
| 298 | * |
|---|
| 299 | * @param array |
|---|
| 300 | * @return string |
|---|
| 301 | */ |
|---|
| 302 | function make_section_in_url($params) |
|---|
| 303 | { |
|---|
| 304 | global $conf; |
|---|
| 305 | $section_string = ''; |
|---|
| 306 | $section = @$params['section']; |
|---|
| 307 | if (!isset($section)) |
|---|
| 308 | { |
|---|
| 309 | $section_of = array( |
|---|
| 310 | 'category' => 'categories', |
|---|
| 311 | 'tags' => 'tags', |
|---|
| 312 | 'list' => 'list', |
|---|
| 313 | 'search' => 'search', |
|---|
| 314 | ); |
|---|
| 315 | |
|---|
| 316 | foreach ($section_of as $param => $s) |
|---|
| 317 | { |
|---|
| 318 | if (isset($params[$param])) |
|---|
| 319 | { |
|---|
| 320 | $section = $s; |
|---|
| 321 | } |
|---|
| 322 | } |
|---|
| 323 | |
|---|
| 324 | if (!isset($section)) |
|---|
| 325 | { |
|---|
| 326 | $section = 'none'; |
|---|
| 327 | } |
|---|
| 328 | } |
|---|
| 329 | |
|---|
| 330 | switch($section) |
|---|
| 331 | { |
|---|
| 332 | case 'categories' : |
|---|
| 333 | { |
|---|
| 334 | if (!isset($params['category'])) |
|---|
| 335 | { |
|---|
| 336 | $section_string.= '/categories'; |
|---|
| 337 | } |
|---|
| 338 | else |
|---|
| 339 | { |
|---|
| 340 | is_array($params['category']) or trigger_error( |
|---|
| 341 | 'make_section_in_url wrong type for category', E_USER_WARNING |
|---|
| 342 | ); |
|---|
| 343 | is_numeric($params['category']['id']) or trigger_error( |
|---|
| 344 | 'make_section_in_url category id not numeric', E_USER_WARNING |
|---|
| 345 | ); |
|---|
| 346 | isset($params['category']['name']) or trigger_error( |
|---|
| 347 | 'make_section_in_url category name not set', E_USER_WARNING |
|---|
| 348 | ); |
|---|
| 349 | |
|---|
| 350 | array_key_exists('permalink', $params['category']) or trigger_error( |
|---|
| 351 | 'make_section_in_url category permalink not set', E_USER_WARNING |
|---|
| 352 | ); |
|---|
| 353 | |
|---|
| 354 | $section_string.= '/category/'; |
|---|
| 355 | if ( empty($params['category']['permalink']) ) |
|---|
| 356 | { |
|---|
| 357 | $section_string.= $params['category']['id']; |
|---|
| 358 | if ( $conf['category_url_style']=='id-name' ) |
|---|
| 359 | { |
|---|
| 360 | $section_string.= '-'.str2url($params['category']['name']); |
|---|
| 361 | } |
|---|
| 362 | } |
|---|
| 363 | else |
|---|
| 364 | { |
|---|
| 365 | $section_string.= $params['category']['permalink']; |
|---|
| 366 | } |
|---|
| 367 | } |
|---|
| 368 | |
|---|
| 369 | break; |
|---|
| 370 | } |
|---|
| 371 | case 'tags' : |
|---|
| 372 | { |
|---|
| 373 | if (!isset($params['tags']) or count($params['tags']) == 0) |
|---|
| 374 | { |
|---|
| 375 | fatal_error('make_section_in_url: require at least one tag'); |
|---|
| 376 | } |
|---|
| 377 | |
|---|
| 378 | $section_string.= '/tags'; |
|---|
| 379 | |
|---|
| 380 | foreach ($params['tags'] as $tag) |
|---|
| 381 | { |
|---|
| 382 | switch ( $conf['tag_url_style'] ) |
|---|
| 383 | { |
|---|
| 384 | case 'id': |
|---|
| 385 | $section_string.= '/'.$tag['id']; |
|---|
| 386 | break; |
|---|
| 387 | case 'tag': |
|---|
| 388 | if (isset($tag['url_name']) and !is_numeric($tag['url_name']) ) |
|---|
| 389 | { |
|---|
| 390 | $section_string.= '/'.$tag['url_name']; |
|---|
| 391 | break; |
|---|
| 392 | } |
|---|
| 393 | default: |
|---|
| 394 | $section_string.= '/'.$tag['id']; |
|---|
| 395 | if (isset($tag['url_name'])) |
|---|
| 396 | { |
|---|
| 397 | $section_string.= '-'.$tag['url_name']; |
|---|
| 398 | } |
|---|
| 399 | } |
|---|
| 400 | } |
|---|
| 401 | |
|---|
| 402 | break; |
|---|
| 403 | } |
|---|
| 404 | case 'search' : |
|---|
| 405 | { |
|---|
| 406 | isset($params['search']) or fatal_error('make_section_in_url: require a search identifier'); |
|---|
| 407 | $section_string.= '/search/'.$params['search']; |
|---|
| 408 | break; |
|---|
| 409 | } |
|---|
| 410 | case 'list' : |
|---|
| 411 | { |
|---|
| 412 | isset($params['list']) or fatal_error('make_section_in_url: require a list of items'); |
|---|
| 413 | $section_string.= '/list/'.implode(',', $params['list']); |
|---|
| 414 | break; |
|---|
| 415 | } |
|---|
| 416 | case 'none' : |
|---|
| 417 | { |
|---|
| 418 | break; |
|---|
| 419 | } |
|---|
| 420 | default : |
|---|
| 421 | { |
|---|
| 422 | $section_string.= '/'.$section; |
|---|
| 423 | } |
|---|
| 424 | } |
|---|
| 425 | |
|---|
| 426 | return $section_string; |
|---|
| 427 | } |
|---|
| 428 | |
|---|
| 429 | /** |
|---|
| 430 | * the reverse of make_section_in_url |
|---|
| 431 | * returns the 'section' (categories/tags/...) and the data associated with it |
|---|
| 432 | * |
|---|
| 433 | * Depending on section, other parameters are returned (category/tags/list/...) |
|---|
| 434 | * |
|---|
| 435 | * @param array of url tokens to parse |
|---|
| 436 | * @param int the index in the array of url tokens; in/out |
|---|
| 437 | * @return array |
|---|
| 438 | */ |
|---|
| 439 | function parse_section_url( $tokens, &$next_token) |
|---|
| 440 | { |
|---|
| 441 | $page=array(); |
|---|
| 442 | if (strncmp(@$tokens[$next_token], 'categor', 7)==0 ) |
|---|
| 443 | { |
|---|
| 444 | $page['section'] = 'categories'; |
|---|
| 445 | $next_token++; |
|---|
| 446 | |
|---|
| 447 | if (isset($tokens[$next_token]) ) |
|---|
| 448 | { |
|---|
| 449 | if (preg_match('/^(\d+)(?:-(.+))?$/', $tokens[$next_token], $matches)) |
|---|
| 450 | { |
|---|
| 451 | if ( isset($matches[2]) ) |
|---|
| 452 | $page['hit_by']['cat_url_name'] = $matches[2]; |
|---|
| 453 | $page['category'] = $matches[1]; |
|---|
| 454 | $next_token++; |
|---|
| 455 | } |
|---|
| 456 | else |
|---|
| 457 | {// try a permalink |
|---|
| 458 | $maybe_permalinks = array(); |
|---|
| 459 | $current_token = $next_token; |
|---|
| 460 | while ( isset($tokens[$current_token]) |
|---|
| 461 | and strpos($tokens[$current_token], 'created-')!==0 |
|---|
| 462 | and strpos($tokens[$current_token], 'posted-')!==0 |
|---|
| 463 | and strpos($tokens[$next_token], 'start-')!==0 |
|---|
| 464 | and strpos($tokens[$next_token], 'startcat-')!==0 |
|---|
| 465 | and $tokens[$current_token] != 'flat') |
|---|
| 466 | { |
|---|
| 467 | if (empty($maybe_permalinks)) |
|---|
| 468 | { |
|---|
| 469 | $maybe_permalinks[] = $tokens[$current_token]; |
|---|
| 470 | } |
|---|
| 471 | else |
|---|
| 472 | { |
|---|
| 473 | $maybe_permalinks[] = |
|---|
| 474 | $maybe_permalinks[count($maybe_permalinks)-1] |
|---|
| 475 | . '/' . $tokens[$current_token]; |
|---|
| 476 | } |
|---|
| 477 | $current_token++; |
|---|
| 478 | } |
|---|
| 479 | |
|---|
| 480 | if ( count($maybe_permalinks) ) |
|---|
| 481 | { |
|---|
| 482 | $cat_id = get_cat_id_from_permalinks($maybe_permalinks, $perma_index); |
|---|
| 483 | if ( isset($cat_id) ) |
|---|
| 484 | { |
|---|
| 485 | $next_token += $perma_index+1; |
|---|
| 486 | $page['category'] = $cat_id; |
|---|
| 487 | $page['hit_by']['cat_permalink'] = $maybe_permalinks[$perma_index]; |
|---|
| 488 | } |
|---|
| 489 | else |
|---|
| 490 | { |
|---|
| 491 | page_not_found(l10n('Permalink for album not found')); |
|---|
| 492 | } |
|---|
| 493 | } |
|---|
| 494 | } |
|---|
| 495 | } |
|---|
| 496 | |
|---|
| 497 | if (isset($page['category'])) |
|---|
| 498 | { |
|---|
| 499 | $result = get_cat_info($page['category']); |
|---|
| 500 | if (empty($result)) |
|---|
| 501 | { |
|---|
| 502 | page_not_found(l10n('Requested album does not exist')); |
|---|
| 503 | } |
|---|
| 504 | $page['category']=$result; |
|---|
| 505 | } |
|---|
| 506 | } |
|---|
| 507 | elseif ( 'tags' == @$tokens[$next_token] ) |
|---|
| 508 | { |
|---|
| 509 | global $conf; |
|---|
| 510 | |
|---|
| 511 | $page['section'] = 'tags'; |
|---|
| 512 | $page['tags'] = array(); |
|---|
| 513 | |
|---|
| 514 | $next_token++; |
|---|
| 515 | $i = $next_token; |
|---|
| 516 | |
|---|
| 517 | $requested_tag_ids = array(); |
|---|
| 518 | $requested_tag_url_names = array(); |
|---|
| 519 | |
|---|
| 520 | while (isset($tokens[$i])) |
|---|
| 521 | { |
|---|
| 522 | if (strpos($tokens[$i], 'created-')===0 |
|---|
| 523 | or strpos($tokens[$i], 'posted-')===0 |
|---|
| 524 | or strpos($tokens[$i], 'start-')===0 ) |
|---|
| 525 | break; |
|---|
| 526 | |
|---|
| 527 | if ( $conf['tag_url_style'] != 'tag' and preg_match('/^(\d+)(?:-(.*)|)$/', $tokens[$i], $matches) ) |
|---|
| 528 | { |
|---|
| 529 | $requested_tag_ids[] = $matches[1]; |
|---|
| 530 | } |
|---|
| 531 | else |
|---|
| 532 | { |
|---|
| 533 | $requested_tag_url_names[] = $tokens[$i]; |
|---|
| 534 | } |
|---|
| 535 | $i++; |
|---|
| 536 | } |
|---|
| 537 | $next_token = $i; |
|---|
| 538 | |
|---|
| 539 | if ( empty($requested_tag_ids) && empty($requested_tag_url_names) ) |
|---|
| 540 | { |
|---|
| 541 | bad_request('at least one tag required'); |
|---|
| 542 | } |
|---|
| 543 | |
|---|
| 544 | $page['tags'] = find_tags($requested_tag_ids, $requested_tag_url_names); |
|---|
| 545 | if ( empty($page['tags']) ) |
|---|
| 546 | { |
|---|
| 547 | page_not_found(l10n('Requested tag does not exist'), get_root_url().'tags.php' ); |
|---|
| 548 | } |
|---|
| 549 | } |
|---|
| 550 | elseif ( 'favorites' == @$tokens[$next_token] ) |
|---|
| 551 | { |
|---|
| 552 | $page['section'] = 'favorites'; |
|---|
| 553 | $next_token++; |
|---|
| 554 | } |
|---|
| 555 | elseif ('most_visited' == @$tokens[$next_token]) |
|---|
| 556 | { |
|---|
| 557 | $page['section'] = 'most_visited'; |
|---|
| 558 | $next_token++; |
|---|
| 559 | } |
|---|
| 560 | elseif ('best_rated' == @$tokens[$next_token]) |
|---|
| 561 | { |
|---|
| 562 | $page['section'] = 'best_rated'; |
|---|
| 563 | $next_token++; |
|---|
| 564 | } |
|---|
| 565 | elseif ('recent_pics' == @$tokens[$next_token]) |
|---|
| 566 | { |
|---|
| 567 | $page['section'] = 'recent_pics'; |
|---|
| 568 | $next_token++; |
|---|
| 569 | } |
|---|
| 570 | elseif ('recent_cats' == @$tokens[$next_token]) |
|---|
| 571 | { |
|---|
| 572 | $page['section'] = 'recent_cats'; |
|---|
| 573 | $next_token++; |
|---|
| 574 | } |
|---|
| 575 | elseif ('search' == @$tokens[$next_token]) |
|---|
| 576 | { |
|---|
| 577 | $page['section'] = 'search'; |
|---|
| 578 | $next_token++; |
|---|
| 579 | |
|---|
| 580 | preg_match('/(\d+)/', @$tokens[$next_token], $matches); |
|---|
| 581 | if (!isset($matches[1])) |
|---|
| 582 | { |
|---|
| 583 | bad_request('search identifier is missing'); |
|---|
| 584 | } |
|---|
| 585 | $page['search'] = $matches[1]; |
|---|
| 586 | $next_token++; |
|---|
| 587 | } |
|---|
| 588 | elseif ('list' == @$tokens[$next_token]) |
|---|
| 589 | { |
|---|
| 590 | $page['section'] = 'list'; |
|---|
| 591 | $next_token++; |
|---|
| 592 | |
|---|
| 593 | $page['list'] = array(); |
|---|
| 594 | |
|---|
| 595 | // No pictures |
|---|
| 596 | if (empty($tokens[$next_token])) |
|---|
| 597 | { |
|---|
| 598 | // Add dummy element list |
|---|
| 599 | $page['list'][] = -1; |
|---|
| 600 | } |
|---|
| 601 | // With pictures list |
|---|
| 602 | else |
|---|
| 603 | { |
|---|
| 604 | if (!preg_match('/^\d+(,\d+)*$/', $tokens[$next_token])) |
|---|
| 605 | { |
|---|
| 606 | bad_request('wrong format on list GET parameter'); |
|---|
| 607 | } |
|---|
| 608 | foreach (explode(',', $tokens[$next_token]) as $image_id) |
|---|
| 609 | { |
|---|
| 610 | $page['list'][] = $image_id; |
|---|
| 611 | } |
|---|
| 612 | } |
|---|
| 613 | $next_token++; |
|---|
| 614 | } |
|---|
| 615 | return $page; |
|---|
| 616 | } |
|---|
| 617 | |
|---|
| 618 | /** |
|---|
| 619 | * the reverse of add_well_known_params_in_url |
|---|
| 620 | * parses start, flat and chronology from url tokens |
|---|
| 621 | */ |
|---|
| 622 | function parse_well_known_params_url($tokens, &$i) |
|---|
| 623 | { |
|---|
| 624 | $page = array(); |
|---|
| 625 | while (isset($tokens[$i])) |
|---|
| 626 | { |
|---|
| 627 | if ( 'flat' == $tokens[$i] ) |
|---|
| 628 | { |
|---|
| 629 | // indicate a special list of images |
|---|
| 630 | $page['flat'] = true; |
|---|
| 631 | } |
|---|
| 632 | elseif (strpos($tokens[$i], 'created-')===0 or strpos($tokens[$i], 'posted-')===0) |
|---|
| 633 | { |
|---|
| 634 | $chronology_tokens = explode('-', $tokens[$i] ); |
|---|
| 635 | |
|---|
| 636 | $page['chronology_field'] = $chronology_tokens[0]; |
|---|
| 637 | |
|---|
| 638 | array_shift($chronology_tokens); |
|---|
| 639 | $page['chronology_style'] = $chronology_tokens[0]; |
|---|
| 640 | |
|---|
| 641 | array_shift($chronology_tokens); |
|---|
| 642 | if ( count($chronology_tokens)>0 ) |
|---|
| 643 | { |
|---|
| 644 | if ('list'==$chronology_tokens[0] or |
|---|
| 645 | 'calendar'==$chronology_tokens[0]) |
|---|
| 646 | { |
|---|
| 647 | $page['chronology_view'] = $chronology_tokens[0]; |
|---|
| 648 | array_shift($chronology_tokens); |
|---|
| 649 | } |
|---|
| 650 | $page['chronology_date'] = $chronology_tokens; |
|---|
| 651 | } |
|---|
| 652 | } |
|---|
| 653 | elseif (preg_match('/^start-(\d+)/', $tokens[$i], $matches)) |
|---|
| 654 | { |
|---|
| 655 | $page['start'] = $matches[1]; |
|---|
| 656 | } |
|---|
| 657 | elseif (preg_match('/^startcat-(\d+)/', $tokens[$i], $matches)) |
|---|
| 658 | { |
|---|
| 659 | $page['startcat'] = $matches[1]; |
|---|
| 660 | } |
|---|
| 661 | $i++; |
|---|
| 662 | } |
|---|
| 663 | return $page; |
|---|
| 664 | } |
|---|
| 665 | |
|---|
| 666 | |
|---|
| 667 | /** |
|---|
| 668 | * @param id image id |
|---|
| 669 | * @param what_part string one of 'e' (element), 'r' (representative) |
|---|
| 670 | */ |
|---|
| 671 | function get_action_url($id, $what_part, $download) |
|---|
| 672 | { |
|---|
| 673 | $params = array( |
|---|
| 674 | 'id' => $id, |
|---|
| 675 | 'part' => $what_part, |
|---|
| 676 | ); |
|---|
| 677 | if ($download) |
|---|
| 678 | { |
|---|
| 679 | $params['download'] = null; |
|---|
| 680 | } |
|---|
| 681 | |
|---|
| 682 | return add_url_params(get_root_url().'action.php', $params); |
|---|
| 683 | } |
|---|
| 684 | |
|---|
| 685 | /* |
|---|
| 686 | * @param element_info array containing element information from db; |
|---|
| 687 | * at least 'id', 'path' should be present |
|---|
| 688 | */ |
|---|
| 689 | function get_element_url($element_info) |
|---|
| 690 | { |
|---|
| 691 | $url = $element_info['path']; |
|---|
| 692 | if ( !url_is_remote($url) ) |
|---|
| 693 | { |
|---|
| 694 | $url = embellish_url(get_root_url().$url); |
|---|
| 695 | } |
|---|
| 696 | return $url; |
|---|
| 697 | } |
|---|
| 698 | |
|---|
| 699 | |
|---|
| 700 | /** |
|---|
| 701 | * Indicate to build url with full path |
|---|
| 702 | * |
|---|
| 703 | * @param null |
|---|
| 704 | * @return null |
|---|
| 705 | */ |
|---|
| 706 | function set_make_full_url() |
|---|
| 707 | { |
|---|
| 708 | global $page; |
|---|
| 709 | |
|---|
| 710 | if (!isset($page['save_root_path'])) |
|---|
| 711 | { |
|---|
| 712 | if (isset($page['root_path'])) |
|---|
| 713 | { |
|---|
| 714 | $page['save_root_path']['path'] = $page['root_path']; |
|---|
| 715 | } |
|---|
| 716 | $page['save_root_path']['count'] = 1; |
|---|
| 717 | $page['root_path'] = get_absolute_root_url(); |
|---|
| 718 | } |
|---|
| 719 | else |
|---|
| 720 | { |
|---|
| 721 | $page['save_root_path']['count'] += 1; |
|---|
| 722 | } |
|---|
| 723 | } |
|---|
| 724 | |
|---|
| 725 | /** |
|---|
| 726 | * Restore old parameter to build url with full path |
|---|
| 727 | * |
|---|
| 728 | * @param null |
|---|
| 729 | * @return null |
|---|
| 730 | */ |
|---|
| 731 | function unset_make_full_url() |
|---|
| 732 | { |
|---|
| 733 | global $page; |
|---|
| 734 | |
|---|
| 735 | if (isset($page['save_root_path'])) |
|---|
| 736 | { |
|---|
| 737 | if ($page['save_root_path']['count'] == 1) |
|---|
| 738 | { |
|---|
| 739 | if (isset($page['save_root_path']['path'])) |
|---|
| 740 | { |
|---|
| 741 | $page['root_path'] = $page['save_root_path']['path']; |
|---|
| 742 | } |
|---|
| 743 | else |
|---|
| 744 | { |
|---|
| 745 | unset($page['root_path']); |
|---|
| 746 | } |
|---|
| 747 | unset($page['save_root_path']); |
|---|
| 748 | } |
|---|
| 749 | else |
|---|
| 750 | { |
|---|
| 751 | $page['save_root_path']['count'] -= 1; |
|---|
| 752 | } |
|---|
| 753 | } |
|---|
| 754 | } |
|---|
| 755 | |
|---|
| 756 | /** |
|---|
| 757 | * Embellish the url argument |
|---|
| 758 | * |
|---|
| 759 | * @param $url |
|---|
| 760 | * @return $url embellished |
|---|
| 761 | */ |
|---|
| 762 | function embellish_url($url) |
|---|
| 763 | { |
|---|
| 764 | $url = str_replace('/./', '/', $url); |
|---|
| 765 | while ( ($dotdot = strpos($url, '/../', 1) ) !== false ) |
|---|
| 766 | { |
|---|
| 767 | $before = strrpos($url, '/', -(strlen($url)-$dotdot+1) ); |
|---|
| 768 | if ($before !== false) |
|---|
| 769 | { |
|---|
| 770 | $url = substr_replace($url, '', $before, $dotdot-$before+3); |
|---|
| 771 | } |
|---|
| 772 | else |
|---|
| 773 | break; |
|---|
| 774 | } |
|---|
| 775 | return $url; |
|---|
| 776 | } |
|---|
| 777 | |
|---|
| 778 | /** |
|---|
| 779 | * Returns the 'home page' of this gallery |
|---|
| 780 | */ |
|---|
| 781 | function get_gallery_home_url() |
|---|
| 782 | { |
|---|
| 783 | global $conf; |
|---|
| 784 | if (!empty($conf['gallery_url'])) |
|---|
| 785 | { |
|---|
| 786 | if (url_is_remote($conf['gallery_url']) or $conf['gallery_url'][0]=='/' ) |
|---|
| 787 | { |
|---|
| 788 | return $conf['gallery_url']; |
|---|
| 789 | } |
|---|
| 790 | return get_root_url().$conf['gallery_url']; |
|---|
| 791 | } |
|---|
| 792 | else |
|---|
| 793 | { |
|---|
| 794 | return make_index_url(); |
|---|
| 795 | } |
|---|
| 796 | } |
|---|
| 797 | |
|---|
| 798 | /** |
|---|
| 799 | * returns $_SERVER['QUERY_STRING'] whithout keys given in parameters |
|---|
| 800 | * |
|---|
| 801 | * @param string[] $rejects |
|---|
| 802 | * @param boolean $escape escape *&* to *&* |
|---|
| 803 | * @returns string |
|---|
| 804 | */ |
|---|
| 805 | function get_query_string_diff($rejects=array(), $escape=true) |
|---|
| 806 | { |
|---|
| 807 | if (empty($_SERVER['QUERY_STRING'])) |
|---|
| 808 | { |
|---|
| 809 | return ''; |
|---|
| 810 | } |
|---|
| 811 | |
|---|
| 812 | parse_str($_SERVER['QUERY_STRING'], $vars); |
|---|
| 813 | |
|---|
| 814 | $vars = array_diff_key($vars, array_flip($rejects)); |
|---|
| 815 | |
|---|
| 816 | return '?' . http_build_query($vars, '', $escape ? '&' : '&'); |
|---|
| 817 | } |
|---|
| 818 | |
|---|
| 819 | /** |
|---|
| 820 | * returns true if the url is absolute (begins with http) |
|---|
| 821 | * |
|---|
| 822 | * @param string $url |
|---|
| 823 | * @returns boolean |
|---|
| 824 | */ |
|---|
| 825 | function url_is_remote($url) |
|---|
| 826 | { |
|---|
| 827 | if ( strncmp($url, 'http://', 7)==0 |
|---|
| 828 | or strncmp($url, 'https://', 8)==0 ) |
|---|
| 829 | { |
|---|
| 830 | return true; |
|---|
| 831 | } |
|---|
| 832 | return false; |
|---|
| 833 | } |
|---|
| 834 | |
|---|
| 835 | ?> |
|---|
