508 lines
No EOL
14 KiB
PHP
508 lines
No EOL
14 KiB
PHP
<?php
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// +-----------------------------------------------------------------------+
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// | Piwigo - a PHP based picture gallery |
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// +-----------------------------------------------------------------------+
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// | Copyright(C) 2008-2010 Piwigo Team http://piwigo.org |
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// | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net |
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// | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick |
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// +-----------------------------------------------------------------------+
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// | This program is free software; you can redistribute it and/or modify |
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// | it under the terms of the GNU General Public License as published by |
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// | the Free Software Foundation |
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// | |
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// | This program is distributed in the hope that it will be useful, but |
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// | WITHOUT ANY WARRANTY; without even the implied warranty of |
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// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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// | General Public License for more details. |
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// | |
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// | You should have received a copy of the GNU General Public License |
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// | along with this program; if not, write to the Free Software |
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// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
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// | USA. |
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// +-----------------------------------------------------------------------+
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/**
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* returns the list of categories as a HTML string
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*
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* categories string returned contains categories as given in the input
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* array $cat_informations. $cat_informations array must be an array
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* of array( id=>?, name=>?, permalink=>?). If url input parameter is null,
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* returns only the categories name without links.
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*
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* @param array cat_informations
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* @param string url
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* @param boolean replace_space
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* @return string
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*/
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function get_cat_display_name($cat_informations,
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$url = '',
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$replace_space = true)
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{
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global $conf;
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//$output = '<a href="'.get_absolute_root_url().$conf['home_page'].'">'.l10n('Home').'</a>';
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$output = '';
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$is_first=true;
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foreach ($cat_informations as $cat)
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{
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is_array($cat) or trigger_error(
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'get_cat_display_name wrong type for category ', E_USER_WARNING
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);
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$cat['name'] = trigger_event(
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'render_category_name',
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$cat['name'],
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'get_cat_display_name'
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);
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if ($is_first)
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{
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$is_first=false;
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}
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else
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{
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$output.= $conf['level_separator'];
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}
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if ( !isset($url) )
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{
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$output.= $cat['name'];
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}
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elseif ($url == '')
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{
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$output.= '<a href="'
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.make_index_url(
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array(
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'category' => $cat,
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)
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)
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.'">';
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$output.= $cat['name'].'</a>';
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}
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else
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{
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$output.= '<a href="'.PHPWG_ROOT_PATH.$url.$cat['id'].'">';
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$output.= $cat['name'].'</a>';
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}
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}
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if ($replace_space)
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{
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return replace_space($output);
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}
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else
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{
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return $output;
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}
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}
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/**
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* returns the list of categories as a HTML string, with cache of names
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*
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* categories string returned contains categories as given in the input
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* array $cat_informations. $uppercats is the list of category ids to
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* display in the right order. If url input parameter is empty, returns only
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* the categories name without links.
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*
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* @param string uppercats
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* @param string url
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* @param boolean replace_space
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* @return string
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*/
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function get_cat_display_name_cache($uppercats,
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$url = '',
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$replace_space = true)
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{
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global $cache, $conf;
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if (!isset($cache['cat_names']))
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{
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$query = '
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SELECT id, name, permalink
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FROM '.CATEGORIES_TABLE.'
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;';
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$cache['cat_names'] = hash_from_query($query, 'id');
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}
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$output = '';
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$is_first = true;
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foreach (explode(',', $uppercats) as $category_id)
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{
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$cat = $cache['cat_names'][$category_id];
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$cat['name'] = trigger_event(
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'render_category_name',
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$cat['name'],
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'get_cat_display_name_cache'
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);
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if ($is_first)
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{
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$is_first = false;
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}
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else
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{
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$output.= $conf['level_separator'];
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}
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if ( !isset($url) )
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{
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$output.= $cat['name'];
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}
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elseif ($url == '')
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{
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$output.= '
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<a href="'
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.make_index_url(
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array(
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'category' => $cat,
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)
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)
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.'">'.$cat['name'].'</a>';
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}
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else
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{
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$output.= '
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<a href="'.PHPWG_ROOT_PATH.$url.$category_id.'">'.$cat['name'].'</a>';
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}
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}
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if ($replace_space)
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{
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return replace_space($output);
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}
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else
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{
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return $output;
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}
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}
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/**
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* returns HTMLized comment contents retrieved from database
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*
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* newlines becomes br tags, _word_ becomes underline, /word/ becomes
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* italic, *word* becomes bolded
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*
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* @param string content
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* @return string
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*/
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function render_comment_content($content)
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{
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$content = htmlspecialchars($content);
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$pattern = '/(https?:\/\/\S*)/';
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$replacement = '<a href="$1" rel="nofollow">$1</a>';
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$content = preg_replace($pattern, $replacement, $content);
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$content = nl2br($content);
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// replace _word_ by an underlined word
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$pattern = '/\b_(\S*)_\b/';
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$replacement = '<span style="text-decoration:underline;">$1</span>';
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$content = preg_replace($pattern, $replacement, $content);
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// replace *word* by a bolded word
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$pattern = '/\b\*(\S*)\*\b/';
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$replacement = '<span style="font-weight:bold;">$1</span>';
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$content = preg_replace($pattern, $replacement, $content);
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// replace /word/ by an italic word
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$pattern = "/\/(\S*)\/(\s)/";
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$replacement = '<span style="font-style:italic;">$1$2</span>';
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$content = preg_replace($pattern, $replacement, $content);
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return $content;
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}
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function get_cat_display_name_from_id($cat_id,
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$url = '',
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$replace_space = true)
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{
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$cat_info = get_cat_info($cat_id);
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return get_cat_display_name($cat_info['upper_names'], $url, $replace_space);
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}
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/**
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* Returns an HTML list of tags. It can be a multi select field or a list of
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* checkboxes.
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*
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* @param string HTML field name
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* @param array selected tag ids
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* @return array
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*/
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function get_html_tag_selection(
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$tags,
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$fieldname,
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$selecteds = array(),
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$forbidden_categories = null
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)
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{
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global $conf;
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if (count ($tags) == 0 )
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{
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return '';
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}
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$output = '<ul class="tagSelection">';
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foreach ($tags as $tag)
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{
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$output.=
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'<li>'
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.'<label>'
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.'<input type="checkbox" name="'.$fieldname.'[]"'
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.' value="'.$tag['id'].'"'
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;
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if (in_array($tag['id'], $selecteds))
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{
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$output.= ' checked="checked"';
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}
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$output.=
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'>'
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.$tag['name']
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.'</label>'
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.'</li>'
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."\n"
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;
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}
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$output.= '</ul>';
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return $output;
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}
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function name_compare($a, $b)
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{
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return strcmp(strtolower($a['name']), strtolower($b['name']));
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}
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function tag_alpha_compare($a, $b)
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{
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return strcmp(strtolower($a['url_name']), strtolower($b['url_name']));
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}
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/**
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* exits the current script (either exit or redirect)
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*/
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function access_denied()
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{
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global $user;
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$login_url =
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get_root_url().'identification.php?redirect='
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.urlencode(urlencode($_SERVER['REQUEST_URI']));
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set_status_header(401);
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if ( isset($user) and !is_a_guest() )
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{
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echo '<meta http-equiv="Content-Type" content="text/html; charset=utf-8">';
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echo '<div style="text-align:center;">'.l10n('You are not authorized to access the requested page').'<br>';
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echo '<a href="'.get_root_url().'identification.php">'.l10n('Identification').'</a> ';
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echo '<a href="'.make_index_url().'">'.l10n('Home').'</a></div>';
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echo str_repeat( ' ', 512); //IE6 doesn't error output if below a size
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exit();
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}
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else
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{
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redirect_html($login_url);
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}
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}
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/**
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* exits the current script with 403 code
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* @param string msg a message to display
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* @param string alternate_url redirect to this url
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*/
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function page_forbidden($msg, $alternate_url=null)
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{
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set_status_header(403);
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if ($alternate_url==null)
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$alternate_url = make_index_url();
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redirect_html( $alternate_url,
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'<div style="text-align:left; margin-left:5em;margin-bottom:5em;">
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<h1 style="text-align:left; font-size:36px;">Forbidden</h1><br>'
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.$msg.'</div>',
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5 );
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}
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/**
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* exits the current script with 400 code
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* @param string msg a message to display
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* @param string alternate_url redirect to this url
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*/
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function bad_request($msg, $alternate_url=null)
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{
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set_status_header(400);
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if ($alternate_url==null)
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$alternate_url = make_index_url();
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redirect_html( $alternate_url,
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'<div style="text-align:left; margin-left:5em;margin-bottom:5em;">
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<h1 style="text-align:left; font-size:36px;">Bad request</h1><br>'
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.$msg.'</div>',
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5 );
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}
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/**
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* exits the current script with 404 code when a page cannot be found
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* @param string msg a message to display
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* @param string alternate_url redirect to this url
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*/
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function page_not_found($msg, $alternate_url=null)
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{
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set_status_header(404);
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if ($alternate_url==null)
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$alternate_url = make_index_url();
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redirect_html( $alternate_url,
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'<div style="text-align:left; margin-left:5em;margin-bottom:5em;">
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<h1 style="text-align:left; font-size:36px;">Page not found</h1><br>'
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.$msg.'</div>',
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5 );
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}
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/**
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* exits the current script with 500 http code
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* this method can be called at any time (does not use template/language/user etc...)
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* @param string msg a message to display
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*/
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function fatal_error($msg, $title=null, $show_trace=true)
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{
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if (empty($title))
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{
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$title = 'Piwigo encountered a non recoverable error';
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}
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$btrace_msg = '';
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if ($show_trace and function_exists('debug_backtrace'))
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{
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$bt = debug_backtrace();
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for ($i=1; $i<count($bt); $i++)
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{
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$class = isset($bt[$i]['class']) ? (@$bt[$i]['class'].'::') : '';
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$btrace_msg .= "#$i\t".$class.@$bt[$i]['function'].' '.@$bt[$i]['file']."(".@$bt[$i]['line'].")\n";
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}
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$btrace_msg = trim($btrace_msg);
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$msg .= "\n";
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}
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$display = "<meta http-equiv='Content-Type' content='text/html; charset=utf-8'>
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<h1>$title</h1>
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<pre style='font-size:larger;background:white;color:red;padding:1em;margin:0;clear:both;display:block;width:auto;height:auto;overflow:auto'>
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<b>$msg</b>
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$btrace_msg
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</pre>\n";
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@set_status_header(500);
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echo $display.str_repeat( ' ', 300); //IE6 doesn't error output if below a size
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if ( function_exists('ini_set') )
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{// if possible turn off error display (we display it)
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ini_set('display_errors', false);
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}
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error_reporting( E_ALL );
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trigger_error( strip_tags($msg).$btrace_msg, E_USER_ERROR );
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die(0); // just in case
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}
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/* returns the title to be displayed above thumbnails on tag page
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*/
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function get_tags_content_title()
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{
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global $page;
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$title = count($page['tags']) > 1 ? l10n('Tag') : l10n('Tag');
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$title.= ' ';
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for ($i=0; $i<count($page['tags']); $i++)
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{
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$title.= $i>0 ? ' + ' : '';
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$title.=
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'<a href="'
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.make_index_url(
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array(
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'tags' => array( $page['tags'][$i] )
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)
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)
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.'" title="'
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.l10n('display photos linked to this tag')
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.'">'
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.$page['tags'][$i]['name']
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.'</a>';
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$remove_url = null;
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if (count($page['tags']) == 1)
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{
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$remove_url = get_root_url().'tags.php';
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}
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else
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{
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$other_tags = $page['tags'];
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unset($other_tags[$i]);
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$remove_url = make_index_url(
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array(
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'tags' => $other_tags
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)
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);
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}
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$title.=
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'<a href="'.$remove_url.'" style="border:none;" title="'
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.l10n('remove this tag from the list')
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.'"><img src="'
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.get_root_url().get_themeconf('icon_dir').'/remove_s.png'
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.'" alt="x" style="vertical-align:bottom;" class="button">'
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.'</a>';
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}
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return $title;
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}
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/**
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Sets the http status header (200,401,...)
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*/
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function set_status_header($code, $text='')
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{
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if (empty($text))
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{
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switch ($code)
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{
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case 200: $text='OK';break;
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case 301: $text='Moved permanently';break;
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case 302: $text='Moved temporarily';break;
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case 304: $text='Not modified';break;
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case 400: $text='Bad request';break;
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case 401: $text='Authorization required';break;
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case 403: $text='Forbidden';break;
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case 404: $text='Not found';break;
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case 500: $text='Server error';break;
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case 501: $text='Not implemented';break;
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case 503: $text='Service unavailable';break;
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}
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}
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$protocol = $_SERVER["SERVER_PROTOCOL"];
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if ( ('HTTP/1.1' != $protocol) && ('HTTP/1.0' != $protocol) )
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$protocol = 'HTTP/1.0';
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header( "$protocol $code $text", true, $code );
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trigger_action('set_status_header', $code, $text);
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}
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/** returns the category comment for rendering in html textual mode (subcatify)
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* this is an event handler. don't call directly
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*/
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function render_category_literal_description($desc)
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{
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return strip_tags($desc, '<span><p><a><br><b><i><small><big><strong><em>');
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}
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/*event handler for menu*/
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function register_default_menubar_blocks( $menu_ref_arr )
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{
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$menu = & $menu_ref_arr[0];
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if ($menu->get_id() != 'menubar')
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return;
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$menu->register_block( new RegisteredBlock( 'mbLinks', 'Links', 'piwigo'));
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$menu->register_block( new RegisteredBlock( 'mbCategories', 'Albums', 'piwigo'));
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$menu->register_block( new RegisteredBlock( 'mbTags', 'Related tags', 'piwigo'));
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$menu->register_block( new RegisteredBlock( 'mbSpecials', 'Specials', 'piwigo'));
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$menu->register_block( new RegisteredBlock( 'mbMenu', 'Menu', 'piwigo'));
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$menu->register_block( new RegisteredBlock( 'mbIdentification', 'Identification', 'piwigo') );
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}
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?>
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