PHP Surfer::is方法代码示例

 /**
  * list servers
  *
  * @param resource the SQL result
  * @return string the rendered text
  *
  * @see layouts/layout.php
  **/
 function layout($result)
 {
     global $context;
     // empty list
     if (!SQL::count($result)) {
         $output = array();
         return $output;
     }
     // we return an array of ($url => $attributes)
     $items = array();
     // process all items in the list
     while ($item = SQL::fetch($result)) {
         // initialize variables
         $prefix = $suffix = $icon = '';
         // the url to view this item
         $url = Servers::get_url($item['id']);
         // use the title as a label
         $label = Skin::strip($item['title'], 10);
         // flag files uploaded recently
         if ($item['edit_date'] >= $context['fresh']) {
             $prefix = NEW_FLAG . $prefix;
         }
         // description
         if ($item['description']) {
             $suffix .= ' ' . ucfirst(trim($item['description']));
         }
         // the menu bar for associates and poster
         if (Surfer::is_empowered() || Surfer::is($item['edit_id'])) {
             $menu = array(Servers::get_url($item['id'], 'edit') => i18n::s('Edit'), Servers::get_url($item['id'], 'delete') => i18n::s('Delete'));
             $suffix .= ' ' . Skin::build_list($menu, 'menu');
         }
         // add a separator
         if ($suffix) {
             $suffix = ' - ' . $suffix;
         }
         // append details to the suffix
         $suffix .= BR . '<span class="details">';
         // details
         $details = array();
         // item poster
         if ($item['edit_name']) {
             $details[] = sprintf(i18n::s('edited by %s %s'), Users::get_link($item['edit_name'], $item['edit_address'], $item['edit_id']), Skin::build_date($item['edit_date']));
         }
         // the edition date
         $details[] = Skin::build_date($item['edit_date']);
         // all details
         if (count($details)) {
             $suffix .= ucfirst(implode(', ', $details)) . "\n";
         }
         // end of details
         $suffix .= '</span>';
         // list all components for this item
         $items[$url] = array($prefix, $label, $suffix, 'server', $icon);
     }
     // end of processing
     SQL::free($result);
     return $items;
 }

 /**
  * check if a surfer owns a section
  *
  * @param array section attributes
  * @param object parent anchor, if any
  * @param boolean FALSE if the surfer can be an editor of parent section
  * @param int optional reference to some user profile
  * @return TRUE or FALSE
  */
 public static function is_owned($item = NULL, $anchor = NULL, $strict = FALSE, $user_id = NULL)
 {
     global $context;
     // id of requesting user
     if (!$user_id) {
         if (!Surfer::get_id()) {
             return FALSE;
         }
         $user_id = Surfer::get_id();
     }
     // surfer owns this section
     if (isset($item['owner_id']) && $item['owner_id'] == $user_id) {
         return TRUE;
     }
     // do not look upwards
     if (!$anchor || !is_object($anchor)) {
         return FALSE;
     }
     // associates can do what they want
     if (Surfer::is($user_id) && Surfer::is_associate()) {
         return TRUE;
     }
     // we are owning one of the parents
     if ($anchor->is_owned($user_id)) {
         return TRUE;
     }
     // surfer is a member assigned to one of the parents
     if (!$strict && Surfer::is_member() && is_object($anchor) && !$anchor->is_hidden() && $anchor->is_assigned($user_id)) {
         return TRUE;
     }
     // sorry
     return FALSE;
 }

    // re-enforce the canonical link
} elseif (!$zoom_type && $page == 1 && $context['self_url'] && $whole_rendering && strncmp($context['self_url'], $context['page_link'], strlen($context['page_link']))) {
    Safe::header('Status: 301 Moved Permanently', TRUE, 301);
    Safe::header('Location: ' . $context['page_link']);
    Logger::error(Skin::build_link($context['page_link']));
    // display the article
} else {
    // behaviors can change page menu
    if (is_object($behaviors)) {
        $context['page_menu'] = $behaviors->add_commands('articles/view.php', 'article:' . $item['id'], $context['page_menu']);
    }
    // remember surfer visit
    Surfer::is_visiting(Articles::get_permalink($item), Codes::beautify_title($item['title']), 'article:' . $item['id'], $item['active']);
    // increment silently the hits counter if not robot, nor associate, nor owner, nor at follow-up page
    if (Surfer::is_crawler() || Surfer::is_associate()) {
    } elseif (isset($item['owner_id']) && Surfer::is($item['owner_id'])) {
    } elseif (!$zoom_type) {
        $item['hits'] = isset($item['hits']) ? $item['hits'] + 1 : 1;
        Articles::increment_hits($item['id']);
    }
    // initialize the rendering engine
    Codes::initialize(Articles::get_permalink($item));
    // neighbours information
    $neighbours = NULL;
    if (Articles::has_option('with_neighbours', $anchor, $item) && is_object($anchor)) {
        $neighbours = $anchor->get_neighbours('article', $item);
    }
    //
    // set page image -- $context['page_image']
    //
    // the article or the anchor icon, if any

 /**
  * put an updated user profile in the database
  *
  * If present, only the password is changed. Or other fields except the password are modified.
  *
  * To change a password, set fields 'id', 'password' and 'confirm'
  *
  * @param array an array of fields
  * @return TRUE on success, FALSE otherwise
  *
  * @see users/edit.php
  * @see users/password.php
  * @see users/select_avatar.php
  **/
 public static function put(&$fields)
 {
     global $context;
     // load the record
     $item = Users::get($fields['id']);
     if (!isset($item['id']) || !$item['id']) {
         Logger::error(i18n::s('No item has the provided id.'));
         return FALSE;
     }
     // remember who is changing this record
     Surfer::check_default_editor($fields);
     // if a password change
     if (isset($fields['password'])) {
         // ensure that the password has been provided twice
         if (!isset($fields['confirm']) || $fields['confirm'] != $fields['password']) {
             Logger::error(i18n::s('New password has to be confirmed.'));
             return FALSE;
         }
         // hash password, we are coming from an interactive form
         $fields['password'] = md5($fields['password']);
         // else if a regular profile update
     } else {
         // nick_name is required
         if (!isset($fields['nick_name']) || !trim($fields['nick_name'])) {
             Logger::error(i18n::s('Please indicate a nick name.'));
             return FALSE;
         }
         // some weird users put spaces around
         $fields['nick_name'] = trim($fields['nick_name']);
         // nick_name may be already used
         if (($used = Users::get($fields['nick_name'])) && $used['id'] != $fields['id']) {
             Logger::error(i18n::s('Another member already has this nick name. Please select a different one.'));
             return FALSE;
         }
         // ensure we have a full name
         if (!isset($fields['full_name']) || !trim($fields['full_name'])) {
             $fields['full_name'] = $fields['nick_name'];
         }
         // protect from hackers
         if (isset($fields['avatar_url'])) {
             $fields['avatar_url'] = encode_link($fields['avatar_url']);
         }
         // set default values
         if (!isset($fields['active']) || !$fields['active']) {
             $fields['active'] = 'Y';
         }
         if (isset($fields['selected_editor'])) {
             $fields['editor'] = $fields['selected_editor'];
         } elseif (isset($context['users_default_editor'])) {
             $fields['editor'] = $context['users_default_editor'];
         } else {
             $fields['editor'] = 'yacs';
         }
         if (!isset($fields['interface']) || $fields['interface'] != 'C') {
             $fields['interface'] = 'I';
         }
         if (!isset($fields['with_newsletters']) || $fields['with_newsletters'] != 'Y') {
             $fields['with_newsletters'] = 'N';
         }
         if (!isset($fields['without_alerts']) || $fields['without_alerts'] != 'N') {
             $fields['without_alerts'] = 'Y';
         }
         if (!isset($fields['without_confirmations']) || $fields['without_confirmations'] != 'N') {
             $fields['without_confirmations'] = 'Y';
         }
         if (!isset($fields['without_messages']) || $fields['without_messages'] != 'N') {
             $fields['without_messages'] = 'Y';
         }
         if (!isset($fields['birth_date']) || !$fields['birth_date']) {
             $fields['birth_date'] = NULL_DATE;
         }
         // clean provided tags
         if (isset($fields['tags'])) {
             $fields['tags'] = trim($fields['tags'], " \t.:,!?");
         }
         // save new settings in session and in cookie
         if (Surfer::is($fields['id'])) {
             // change preferred editor
             $_SESSION['surfer_editor'] = $fields['editor'];
             Safe::setcookie('surfer_editor', $fields['editor'], NULL, '/');
             // change preferred language
             if (isset($fields['language']) && $_SESSION['surfer_language'] != $fields['language']) {
                 $_SESSION['surfer_language'] = $fields['language'];
                 $_SESSION['l10n_modules'] = array();
             }
         }
//.........这里部分代码省略.........

    }
    // page details
    if (is_array($details)) {
        $context['text'] .= '<p class="details">' . ucfirst(implode(', ', $details)) . "</p>\n";
    }
    // insert anchor suffix
    if (is_object($anchor)) {
        $context['text'] .= $anchor->get_suffix();
    }
    // back to the anchor page
    if (is_object($anchor) && $anchor->is_viewable()) {
        $menu = array(Skin::build_link($anchor->get_url(), i18n::s('Back to main page'), 'button'));
        $context['text'] .= Skin::build_block(Skin::finalize_list($menu, 'menu_bar'), 'bottom');
    }
    //
    // populate the extra panel
    //
    // commands for associates and editors
    if (Surfer::is_associate() || is_object($anchor) && $anchor->is_assigned()) {
        $context['page_tools'][] = Skin::build_link(Locations::get_url($id, 'edit'), i18n::s('Edit'));
        $context['page_tools'][] = Skin::build_link(Locations::get_url($id, 'delete'), i18n::s('Delete'));
        // commands for the author
    } elseif (Surfer::is($item['edit_id'])) {
        $context['page_tools'][] = Skin::build_link(Locations::get_url($item['id'], 'edit'), i18n::s('Edit'));
    }
    // referrals, if any, in a sidebar
    //
    $context['components']['referrals'] =& Skin::build_referrals(Locations::get_url($item['id']));
}
// render the skin
render_skin();

 /**
  * list links
  *
  * Recognize following variants:
  * - 'no_anchor' to list items attached to one particular anchor
  * - 'no_author' to list items attached to one user prolink
  *
  * @param resource the SQL result
  * @return array of resulting items, or NULL
  *
  * @see layouts/layout.php
  **/
 function layout($result)
 {
     global $context;
     // we return an array of ($url => $attributes)
     $items = array();
     // empty list
     if (!SQL::count($result)) {
         return $items;
     }
     // sanity check
     if (!isset($this->layout_variant)) {
         $this->layout_variant = 'no_anchor';
     }
     // process all items in the list
     while ($item = SQL::fetch($result)) {
         // get the main anchor
         $anchor = Anchors::get($item['anchor']);
         // initialize variables
         $prefix = $suffix = $icon = '';
         // make a label
         $label = Links::clean($item['title'], $item['link_url']);
         // flag links uploaded recently
         if ($item['edit_date'] >= $context['fresh']) {
             $prefix = NEW_FLAG . $prefix;
         }
         // the number of clicks
         if ($item['hits'] > 1) {
             $suffix .= ' (' . Skin::build_number($item['hits'], i18n::s('clicks')) . ') ';
         }
         // add a separator
         if ($suffix) {
             $suffix = ' - ' . $suffix;
         }
         // details
         $details = array();
         // item poster
         if ($item['edit_name'] && $this->layout_variant != 'no_author') {
             if (Surfer::is_member() || (!isset($context['content_without_details']) || $context['content_without_details'] != 'Y') || is_object($anchor) && $anchor->has_option('with_details')) {
                 $details[] = sprintf(i18n::s('edited by %s %s'), Users::get_link($item['edit_name'], $item['edit_address'], $item['edit_id']), Skin::build_date($item['edit_date']));
             }
         }
         // show an anchor link
         if ($this->layout_variant != 'no_anchor' && $this->layout_variant != 'no_author' && $item['anchor'] && ($anchor = Anchors::get($item['anchor']))) {
             $anchor_url = $anchor->get_url();
             $anchor_label = ucfirst($anchor->get_title());
             $details[] = sprintf(i18n::s('in %s'), Skin::build_link($anchor_url, $anchor_label, 'article'));
         }
         // the menu bar for associates and poster
         if (Surfer::is_empowered() || Surfer::is($item['edit_id'])) {
             $details[] = Skin::build_link('links/edit.php?id=' . $item['id'], i18n::s('edit'), 'span');
             $details[] = Skin::build_link('links/delete.php?id=' . $item['id'], i18n::s('delete'), 'span');
         }
         // append details to the suffix
         if (count($details)) {
             $suffix .= BR . Skin::finalize_list($details, 'menu');
         }
         // description
         if ($item['description']) {
             $suffix .= BR . Codes::beautify($item['description']);
         }
         // build the actual link to check it
         if ($this->layout_variant == 'review') {
             $icon = $item['link_url'];
         }
         // url is the link itself -- hack for xhtml compliance
         $url = str_replace('&', '&', $item['link_url']);
         // let the rendering engine guess the type of link
         $link_type = NULL;
         // except if we want to stay within this window
         if (isset($item['link_target']) && $item['link_target'] != 'I') {
             $link_type = 'external';
         }
         // hovering title
         $link_title = NULL;
         if (isset($item['link_title']) && $item['link_title']) {
             $link_title = $item['link_title'];
         }
         // pack everything
         $items[$url] = array($prefix, $label, $suffix, $link_type, $icon, $link_title);
     }
     // end of processing
     SQL::free($result);
     return $items;
 }

 /**
  * check that the surfer owns an anchor
  *
  * To be overloaded into derived class if attribute has a different name than 'owner_id'.
  *
  * @param int optional reference to some user profile
  * @param boolean FALSE to not cascade the check to parent containers
  * @return TRUE or FALSE
  */
 function is_owned($user_id = NULL, $cascade = TRUE)
 {
     global $context;
     // id of requesting user
     if (!$user_id) {
         if (!Surfer::get_id()) {
             return FALSE;
         }
         $user_id = Surfer::get_id();
     }
     // surfer owns this item
     if (isset($this->item['owner_id']) && $user_id == $this->item['owner_id']) {
         return TRUE;
     }
     // do not cascade
     if (!$cascade) {
         return FALSE;
     }
     // associates can always do it, except if not cascading
     if (Surfer::is($user_id) && Surfer::is_associate()) {
         return TRUE;
     }
     // if surfer manages parent container it's ok too
     if (isset($this->item['anchor'])) {
         // save requests
         if (!isset($this->anchor) || !$this->anchor) {
             $this->anchor = Anchors::get($this->item['anchor']);
         }
         // test strict ownership
         if (is_object($this->anchor) && $this->anchor->is_owned($user_id)) {
             return TRUE;
         }
     }
     // sorry
     return FALSE;
 }

            $context['components']['boxes'] = Skin::build_box(i18n::s('Help'), $help, 'boxes', 'help');
        }
        // adding followers
    } else {
        if (Surfer::may_mail()) {
            $help = i18n::s('Each new person will be notified that you are following him.');
            // in a side box
            $context['components']['boxes'] = Skin::build_box(i18n::s('Help'), $help, 'boxes', 'help');
        }
    }
    // list editors
} elseif ($permitted == 'editors') {
    // the title of the page
    if (is_object($anchor)) {
        if (!strncmp($anchor->get_reference(), 'user:', 5)) {
            if (Surfer::is(intval(substr($anchor->get_reference(), 5)))) {
                $context['page_title'] = i18n::s('Persons that I am following');
            } else {
                $context['page_title'] = sprintf(i18n::s('Persons followed by %s'), $anchor->get_title());
            }
        } elseif (!strncmp($anchor->get_reference(), 'category:', 9)) {
            $context['page_title'] = sprintf(i18n::s('Members of %s'), $anchor->get_title());
        } else {
            $context['page_title'] = i18n::s('Editors');
        }
    }
    // look for the user through his nick name
    if (isset($_REQUEST['assigned_name']) && ($user = Users::get($_REQUEST['assigned_name']))) {
        $_REQUEST['anchor'] = 'user:' . $user['id'];
    }
    // the current list of category members

 /**
  * check if a surfer owns a page
  *
  * @param array page attributes
  * @param object cascade to parent if set
  * @param boolean FALSE if the surfer can be an editor of parent section
  * @param int optional reference to some user profile
  * @return TRUE or FALSE
  */
 public static function is_owned($item = NULL, $anchor = NULL, $strict = FALSE, $user_id = NULL)
 {
     global $context;
     // ownership requires to be authenticated
     if (!$user_id) {
         if (!Surfer::get_id()) {
             return FALSE;
         }
         $user_id = Surfer::get_id();
     }
     // surfer owns this page
     if (isset($item['owner_id']) && $item['owner_id'] == $user_id) {
         return TRUE;
     }
     // do not look upwards
     if (!$anchor || !is_object($anchor)) {
         return FALSE;
     }
     // associates can do what they want
     if (Surfer::is($user_id) && Surfer::is_associate()) {
         return TRUE;
     }
     // surfer owns parent container
     if ($anchor->is_owned($user_id)) {
         return TRUE;
     }
     // page has not been created yet, section is not private, and surfer is member --not subscriber
     // Alexis => desactivated cause it's rejected later
     //if(!$strict && !isset($item['id']) && Surfer::is_member() && is_object($anchor) && !$anchor->is_hidden())
     //	return TRUE;
     // page is not private, and surfer is editor --not subscriber-- of parent container
     if (!$strict && isset($item['active']) && $item['active'] != 'N' && Surfer::is_member() && is_object($anchor) && $anchor->is_assigned($user_id)) {
         return TRUE;
     }
     // sorry
     return FALSE;
 }

     // change avatar
     if (Surfer::is_empowered() && isset($item['avatar_url']) && $item['avatar_url']) {
         Skin::define_img('IMAGES_ADD_IMG', 'images/add.gif');
         $label = i18n::s('Change picture');
         $context['page_tools'][] = Skin::build_link(Users::get_url($item['id'], 'select_avatar'), IMAGES_ADD_IMG . $label, 'basic');
     }
     // modify this page
     Skin::define_img('USERS_EDIT_IMG', 'users/edit.gif');
     $context['page_tools'][] = Skin::build_link(Users::get_url($item['id'], 'edit'), USERS_EDIT_IMG . i18n::s('Edit this profile'), 'basic', i18n::s('Press [e] to edit'), FALSE, 'e');
     // change password
     if (!isset($context['users_authenticator']) || !$context['users_authenticator']) {
         Skin::define_img('USERS_PASSWORD_IMG', 'users/password.gif');
         $context['page_tools'][] = Skin::build_link(Users::get_url($item['id'], 'password'), USERS_PASSWORD_IMG . i18n::s('Change password'), 'basic');
     }
     // only associates can delete user profiles; self-deletion may also be allowed
     if (isset($item['id']) && !$zoom_type && $permitted && (Surfer::is_associate() || Surfer::is($item['id']) && (!isset($context['users_without_self_deletion']) || $context['users_without_self_deletion'] != 'Y'))) {
         Skin::define_img('USERS_DELETE_IMG', 'users/delete.gif');
         $context['page_tools'][] = Skin::build_link(Users::get_url($item['id'], 'delete'), USERS_DELETE_IMG . i18n::s('Delete this profile'));
     }
 }
 // associates can transfer ownership
 if (Surfer::is_associate()) {
     Skin::define_img('USERS_TRANSFER_IMG', 'users/transfer.gif');
     $context['page_tools'][] = Skin::build_link(Users::get_url($item['id'], 'transfer'), USERS_TRANSFER_IMG . i18n::s('Transfer ownership'));
 }
 // user profile aside
 $context['components']['profile'] = Skin::build_profile($item, 'extra');
 // add extra information from the overlay, if any
 if (is_object($overlay)) {
     $context['components']['overlay'] = $overlay->get_text('extra', $item);
 }

 /**
  * list files for search requests
  *
  * @param resource the SQL result
  * @return array of resulting items ($score, $summary), or NULL
  *
  * @see layouts/layout.php
  **/
 function layout($result)
 {
     global $context;
     // we return an array of array($score, $summary)
     $items = array();
     // empty list
     if (!SQL::count($result)) {
         return $items;
     }
     // process all items in the list
     while ($item = SQL::fetch($result)) {
         // one box at a time
         $box = '';
         // get the main anchor
         $anchor = Anchors::get($item['anchor']);
         $prefix = $suffix = '';
         // stream the file
         if (Files::is_stream($item['file_name'])) {
             $url = Files::get_url($item['id'], 'stream', $item['file_name']);
         } else {
             $url = Files::get_url($item['id'], 'fetch', $item['file_name']);
         }
         // absolute url
         $url = $context['url_to_home'] . $context['url_to_root'] . $url;
         // signal restricted and private files
         if ($item['active'] == 'N') {
             $prefix .= PRIVATE_FLAG;
         } elseif ($item['active'] == 'R') {
             $prefix .= RESTRICTED_FLAG;
         }
         // file title or file name
         $label = Codes::beautify_title($item['title']);
         if (!$label) {
             $label = ucfirst(str_replace(array('%20', '-', '_'), ' ', $item['file_name']));
         }
         // show a reference to the file for members
         $hover = i18n::s('Get the file');
         if (Surfer::is_member()) {
             $hover .= ' [file=' . $item['id'] . ']';
         }
         // flag files uploaded recently
         if ($item['create_date'] >= $context['fresh']) {
             $suffix .= NEW_FLAG;
         } elseif ($item['edit_date'] >= $context['fresh']) {
             $suffix .= UPDATED_FLAG;
         }
         // one line of text
         $box .= $prefix . Skin::build_link($url, $label, 'basic', $hover) . $suffix;
         // side icon
         if ($item['thumbnail_url']) {
             $icon = $item['thumbnail_url'];
         } else {
             $icon = $context['url_to_root'] . Files::get_icon_url($item['file_name']);
         }
         // build the complete HTML element
         $icon = '<img src="' . $icon . '" alt="" title="' . encode_field(strip_tags($label)) . '" />';
         // make it a clickable link
         $icon = Skin::build_link($url, $icon, 'basic');
         // first line of details
         $details = array();
         // file poster and last action
         $details[] = sprintf(i18n::s('shared by %s %s'), Users::get_link($item['edit_name'], $item['edit_address'], $item['edit_id']), Skin::build_date($item['edit_date']));
         // downloads
         if ($item['hits'] > 1) {
             $details[] = Skin::build_number($item['hits'], i18n::s('downloads'));
         }
         // file size
         if ($item['file_size'] > 1) {
             $details[] = Skin::build_number($item['file_size'], i18n::s('bytes'));
         }
         // file has been detached
         if (isset($item['assign_id']) && $item['assign_id']) {
             // who has been assigned?
             if (Surfer::is($item['assign_id'])) {
                 $details[] = DRAFT_FLAG . sprintf(i18n::s('reserved by you %s'), Skin::build_date($item['assign_date']));
             } else {
                 $details[] = DRAFT_FLAG . sprintf(i18n::s('reserved by %s %s'), Users::get_link($item['assign_name'], $item['assign_address'], $item['assign_id']), Skin::build_date($item['assign_date']));
             }
         }
         // the main anchor link
         if (is_object($anchor)) {
             $details[] = sprintf(i18n::s('in %s'), Skin::build_link($anchor->get_url(), ucfirst($anchor->get_title()), 'article'));
         }
         // append details
         if (count($details)) {
             $box .= '<p class="details">' . Skin::finalize_list($details, 'menu') . '</p>';
         }
         // layout this item
         if ($icon) {
             $list = array(array($box, $icon));
             $items[] = array($item['score'], Skin::finalize_list($list, 'decorated'));
             // put the item in a division
//.........这里部分代码省略.........

 /**
  * list blogmarks
  *
  * @param resource the SQL result
  * @return string resulting text
  **/
 function layout($result)
 {
     global $context;
     // we return a string
     $text = '';
     // empty list
     if (!SQL::count($result)) {
         return $text;
     }
     // start in north
     $in_north = TRUE;
     // define allowed HTML tags for the cover page
     define('ALLOWED_HTML_TAGS', '<a><b><br><h1><h2><h3><i><img><li><ol><p><ul>');
     // build a list of articles
     $box = array();
     $box['content'] = '';
     $previous_date = NULL;
     while ($item = SQL::fetch($result)) {
         // not the same date
         $current_date = substr($item['edit_date'], 0, 10);
         if ($previous_date != $current_date) {
             // insert a complete box for the previous date
             if ($box['content']) {
                 if ($in_north) {
                     $text .= '<div class="newest">' . "\n";
                 }
                 $text .= Skin::build_box($box['title'], $box['content']);
                 if ($in_north) {
                     $text .= '</div>' . "\n";
                 }
                 $in_north = FALSE;
             }
             // prepare a box for a new date
             $previous_date = $current_date;
             $box['title'] = Skin::build_date($item['edit_date'], 'no_hour');
             $box['content'] = '';
         }
         $box['content'] .= '<br clear="both" />';
         // time
         $box['content'] .= '<span class="details">' . substr($item['edit_date'], 11, 5) . '</span> ';
         // make a label
         $label = Links::clean($item['title'], $item['link_url']);
         $box['content'] .= Skin::build_link($item['link_url'], $label);
         // flag links updated recently
         if ($item['edit_date'] >= $context['fresh']) {
             $box['content'] .= ' ' . NEW_FLAG;
         }
         // the description
         if (trim($item['description'])) {
             $box['content'] .= "\n<br/>" . Skin::cap(Codes::beautify($item['description']), 500) . "\n";
         }
         // the menu bar for associates and poster
         if (Surfer::is_empowered() || Surfer::is($item['edit_id'])) {
             $menu = array('links/edit.php?id=' . $item['id'] => i18n::s('Edit'), 'links/delete.php?id=' . $item['id'] => i18n::s('Delete'));
             $box['content'] .= ' ' . Skin::build_list($menu, 'menu');
         }
         // append details to the suffix
         $box['content'] .= BR . '<span class="details">';
         // details
         $details = array();
         // item poster
         if (Surfer::is_member()) {
             if ($item['edit_name']) {
                 $details[] = sprintf(i18n::s('edited by %s %s'), Users::get_link($item['edit_name'], $item['edit_address'], $item['edit_id']), Skin::build_date($item['edit_date']));
             }
         } else {
             $details[] = Anchors::get_action_label($item['edit_action']);
         }
         // show an anchor link
         if ($item['anchor'] && ($anchor = Anchors::get($item['anchor']))) {
             $anchor_url = $anchor->get_url();
             $anchor_label = ucfirst($anchor->get_title());
             $details[] = sprintf(i18n::s('in %s'), Skin::build_link($anchor_url, $anchor_label));
         }
         // all details
         $box['content'] .= ucfirst(trim(implode(' ', $details))) . "\n";
         // end of details
         $box['content'] .= '</span><br/><br/>';
     }
     // close the on-going box
     if ($in_north) {
         $text .= '<div class="newest">' . "\n";
     }
     $text .= Skin::build_box($box['title'], $box['content']);
     if ($in_north) {
         $text .= '</div>' . "\n";
     }
     // end of processing
     SQL::free($result);
     return $text;
 }

        } elseif (isset($_REQUEST['anchor'])) {
            $link = 'articles/edit.php?anchor=' . $_REQUEST['anchor'];
        } else {
            $link = 'articles/edit.php';
        }
        Safe::redirect($context['url_to_home'] . $context['url_to_root'] . 'users/login.php?url=' . urlencode($link));
    }
    // permission denied to authenticated user
    Safe::header('Status: 401 Unauthorized', TRUE, 401);
    Logger::error(i18n::s('You are not allowed to perform this operation.'));
    // an error occured
} elseif (count($context['error'])) {
    $item = $_REQUEST;
    $with_form = TRUE;
    // page has been assigned to another person during the last 5 minutes
} elseif (isset($item['assign_id']) && $item['assign_id'] && !Surfer::is($item['assign_id']) && SQL::strtotime($item['assign_date']) + 5 * 60 >= time()) {
    // permission denied to authenticated user
    Safe::header('Status: 401 Unauthorized', TRUE, 401);
    $context['text'] .= Skin::build_block(sprintf(i18n::s('This page is currently edited by %s. You have to wait for a new version to be released.'), Users::get_link($item['assign_name'], $item['assign_address'], $item['assign_id'])), 'caution');
    // process uploaded data
} elseif (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] == 'POST') {
    // protect from hackers
    if (isset($_REQUEST['edit_name'])) {
        $_REQUEST['edit_name'] = preg_replace(FORBIDDEN_IN_NAMES, '_', $_REQUEST['edit_name']);
    }
    if (isset($_REQUEST['edit_address'])) {
        $_REQUEST['edit_address'] = encode_link($_REQUEST['edit_address']);
    }
    // track anonymous surfers
    Surfer::track($_REQUEST);
    // set options

} elseif (isset($item['id']) && Articles::is_assigned($item['id']) && Surfer::is_logged()) {
    Surfer::empower('S');
} elseif (isset($item['options']) && $item['options'] && preg_match('/\\banonymous_edit\\b/i', $item['options'])) {
    Surfer::empower();
} elseif (Surfer::is_member() && isset($item['options']) && $item['options'] && preg_match('/\\bmembers_edit\\b/i', $item['options'])) {
    Surfer::empower();
} elseif (isset($item['handle']) && Surfer::may_handle($item['handle'])) {
    Surfer::empower();
}
//
// is this surfer allowed to browse the page?
//
// associates, editors and readers can read this page
if (Surfer::is_empowered('S')) {
    $permitted = TRUE;
} elseif (isset($item['create_id']) && Surfer::is($item['create_id'])) {
    $permitted = TRUE;
} elseif (is_object($anchor) && !$anchor->is_viewable()) {
    $permitted = FALSE;
} elseif (isset($item['active']) && $item['active'] == 'R' && Surfer::is_logged()) {
    $permitted = TRUE;
} elseif (isset($item['active']) && $item['active'] == 'Y') {
    $permitted = TRUE;
} else {
    $permitted = FALSE;
}
// load localized strings
i18n::bind('overlays');
// load the skin, maybe with a variant
load_skin('articles', $anchor, isset($item['options']) ? $item['options'] : '');
// clear the tab we are in

 /**
  * check if a file can be deleted
  *
  * This function returns TRUE if the file can be deleted,
  * and FALSE otherwise.
  *
  * @param array a set of item attributes, aka, the target file
  * @param object an instance of the Anchor interface
  * @return TRUE or FALSE
  */
 public static function allow_deletion($item, $anchor)
 {
     global $context;
     // sanity check
     if (!isset($item['id'])) {
         return FALSE;
     }
     // surfer is an associate
     if (Surfer::is_associate()) {
         return TRUE;
     }
     // surfer owns the container
     if (is_object($anchor) && $anchor->is_owned()) {
         return TRUE;
     }
     // allow container editors --not subscribers-- to manage content, except on private sections
     if (Surfer::is_member() && is_object($anchor) && !$anchor->is_hidden() && $anchor->is_assigned()) {
         return TRUE;
     }
     // the file is anchored to the profile of this member
     if (Surfer::get_id() && is_object($anchor) && !strcmp($anchor->get_reference(), 'user:' . Surfer::get_id())) {
         return TRUE;
     }
     // surfer has created the file
     if (isset($item['create_id']) && Surfer::is($item['create_id'])) {
         return TRUE;
     }
     // surfer has changed the file
     if (isset($item['edit_id']) && Surfer::is($item['edit_id'])) {
         return TRUE;
     }
     // default case
     return FALSE;
 }