PHP callback_event_ref函数代码示例

 /**
  * General constructor for searches.
  *
  * @param string $event   The admin-side event to which this search relates
  * @param string $methods Available search methods
  * @param string $crit    Criteria to be used in filter. If omitted, uses GET/POST value
  * @param string $method  Search method(s) to filter by. If omitted, uses GET/POST value or last-used method
  */
 public function __construct($event, $methods, $crit = null, $method = null)
 {
     $this->event = $event;
     callback_event_ref('search_criteria', $event, 0, $methods);
     $this->setMethods($methods);
     if ($crit === null) {
         $this->crit = gps('crit');
     }
     if ($method === null) {
         $this->search_method = gps('search_method');
         if ($this->search_method === '') {
             $this->search_method = unserialize(get_pref('search_options_' . $event));
         }
     }
     $this->verbatim = (bool) preg_match('/^"(.*)"$/', $this->crit, $m);
     $this->crit_escaped = $this->verbatim ? doSlash($m[1]) : doLike($this->crit);
 }

function discuss_save()
{
    $varray = array_map('assert_string', gpsa(array('email', 'name', 'web', 'message', 'ip')));
    $varray = $varray + array_map('assert_int', gpsa(array('discussid', 'visible', 'parentid')));
    extract(doSlash($varray));
    $message = $varray['message'] = preg_replace('#<(/?txp:.+?)>#', '&lt;$1&gt;', $message);
    $constraints = array('status' => new ChoiceConstraint($visible, array('choices' => array(SPAM, MODERATE, VISIBLE), 'message' => 'invalid_status')));
    callback_event_ref('discuss_ui', 'validate_save', 0, $varray, $constraints);
    $validator = new Validator($constraints);
    if ($validator->validate() && safe_update("txp_discuss", "email   = '{$email}',\n\t\t\t name    = '{$name}',\n\t\t\t web     = '{$web}',\n\t\t\t message = '{$message}',\n\t\t\t visible = {$visible}", "discussid = {$discussid}")) {
        update_comments_count($parentid);
        update_lastmod();
        $message = gTxt('comment_updated', array('{id}' => $discussid));
    } else {
        $message = array(gTxt('comment_save_failed'), E_ERROR);
    }
    discuss_list($message);
}

 /**
  * Filter raw input text by calling one of our known Textfilters by its key.
  *
  * Invokes the 'textfilter.filter' pre- and post-callbacks.
  *
  * @param  string $key     The Textfilter's key
  * @param  string $thing   Raw input text
  * @param  array  $context Filter context ('options' => array, 'field' => string, 'data' => mixed)
  * @return string Filtered output text
  * @throws Exception
  */
 public function filter($key, $thing, $context)
 {
     // Preprocessing, anyone?
     callback_event_ref('textfilter', 'filter', 0, $thing, $context);
     if (isset($this[$key])) {
         $thing = $this[$key]->filter($thing, $context['options']);
     } else {
         throw new Exception(gTxt('invalid_argument', array('{name}' => 'key')));
     }
     // Postprocessing, anyone?
     callback_event_ref('textfilter', 'filter', 1, $thing, $context);
     return $thing;
 }

function link_save()
{
    global $vars, $txp_user;
    $varray = array_map('assert_string', gpsa($vars));
    extract(doSlash($varray));
    if ($id) {
        $id = $varray['id'] = assert_int($id);
    }
    if ($linkname === '' && $url === '' && $description === '') {
        link_list(array(gTxt('link_empty'), E_ERROR));
        return;
    }
    $author = fetch('author', 'txp_link', 'id', $id);
    if (!has_privs('link.edit') && !($author == $txp_user && has_privs('link.edit.own'))) {
        link_list(gTxt('restricted_area'));
        return;
    }
    if (!$linksort) {
        $linksort = $linkname;
    }
    $constraints = array('category' => new CategoryConstraint($varray['category'], array('type' => 'link')));
    callback_event_ref('link_ui', 'validate_save', 0, $varray, $constraints);
    $validator = new Validator($constraints);
    if ($validator->validate()) {
        if ($id) {
            $ok = safe_update('txp_link', "category   = '{$category}',\n\t\t\t\t\turl         = '" . trim($url) . "',\n\t\t\t\t\tlinkname    = '{$linkname}',\n\t\t\t\t\tlinksort    = '{$linksort}',\n\t\t\t\t\tdescription = '{$description}',\n\t\t\t\t\tauthor      = '" . doSlash($txp_user) . "'", "id = {$id}");
        } else {
            $ok = safe_insert('txp_link', "category   = '{$category}',\n\t\t\t\t\tdate        = now(),\n\t\t\t\t\turl         = '" . trim($url) . "',\n\t\t\t\t\tlinkname    = '{$linkname}',\n\t\t\t\t\tlinksort    = '{$linksort}',\n\t\t\t\t\tdescription = '{$description}',\n\t\t\t\t\tauthor      = '" . doSlash($txp_user) . "'");
            if ($ok) {
                $GLOBALS['ID'] = $_POST['id'] = $ok;
            }
        }
        if ($ok) {
            // update lastmod due to link feeds
            update_lastmod();
            $message = gTxt($id ? 'link_updated' : 'link_created', array('{name}' => doStrip($linkname)));
        } else {
            $message = array(gTxt('link_save_failed'), E_ERROR);
        }
    } else {
        $message = array(gTxt('link_save_failed'), E_ERROR);
    }
    link_list($message);
}

/**
 * Render a multi-edit form listing editing methods
 *
 * @param  array   $options array('value' => array( 'label' => '', 'html' => '' ),...)
 * @param  string  $event Event
 * @param  string  $step Step
 * @param  integer $page Page number
 * @param  string  $sort Column sorted by
 * @param  string  $dir Sorting direction
 * @param  string  $crit Search criterion
 * @param  string  $search_method Search method
 * @return string  HTML
 */
function multi_edit($options, $event = null, $step = null, $page = '', $sort = '', $dir = '', $crit = '', $search_method = '')
{
    $html = $methods = array();
    $methods[''] = gTxt('with_selected_option');
    if ($event === null) {
        global $event;
    }
    if ($step === null) {
        $step = $event . '_multi_edit';
    }
    callback_event_ref($event . '_ui', 'multi_edit_options', 0, $options);
    foreach ($options as $value => $option) {
        if (is_array($option)) {
            $methods[$value] = $option['label'];
            if (isset($option['html'])) {
                $html[$value] = '<div class="multi-option multi-option-' . txpspecialchars($value) . '">' . $option['html'] . '</div>';
            }
        } else {
            $methods[$value] = $option;
        }
    }
    return '<div class="multi-edit">' . n . selectInput('edit_method', $methods, '') . n . eInput($event) . n . sInput($step) . n . hInput('page', $page) . ($sort ? n . hInput('sort', $sort) . n . hInput('dir', $dir) : '') . ($crit !== '' ? n . hInput('crit', $crit) . n . hInput('search_method', $search_method) : '') . n . implode('', $html) . n . fInput('submit', '', gTxt('go')) . n . '</div>';
}

/**
 * Validates article data.
 *
 * @param  array        $rs  Article data
 * @param  string|array $msg Initial message
 * @return string HTML
 */
function article_validate($rs, &$msg)
{
    global $prefs, $step, $statuses;
    if (!empty($msg)) {
        return false;
    }
    $constraints = array('Status' => new ChoiceConstraint($rs['Status'], array('choices' => array_keys($statuses), 'message' => 'invalid_status')), 'Section' => new SectionConstraint($rs['Section']), 'Category1' => new CategoryConstraint($rs['Category1'], array('type' => 'article')), 'Category2' => new CategoryConstraint($rs['Category2'], array('type' => 'article')), 'textile_body' => new \Textpattern\Textfilter\Constraint($rs['textile_body'], array('message' => 'invalid_textfilter_body')), 'textile_excerpt' => new \Textpattern\Textfilter\Constraint($rs['textile_excerpt'], array('message' => 'invalid_textfilter_excerpt')));
    if (!$prefs['articles_use_excerpts']) {
        $constraints['excerpt_blank'] = new BlankConstraint($rs['Excerpt'], array('message' => 'excerpt_not_blank'));
    }
    if (!$prefs['use_comments']) {
        $constraints['annotate_invite_blank'] = new BlankConstraint($rs['AnnotateInvite'], array('message' => 'invite_not_blank'));
        $constraints['annotate_false'] = new FalseConstraint($rs['Annotate'], array('message' => 'comments_are_on'));
    }
    if ($prefs['allow_form_override']) {
        $constraints['override_form'] = new FormConstraint($rs['override_form'], array('type' => 'article'));
    } else {
        $constraints['override_form'] = new BlankConstraint($rs['override_form'], array('message' => 'override_form_not_blank'));
    }
    callback_event_ref('article_ui', "validate_{$step}", 0, $rs, $constraints);
    $validator = new Validator($constraints);
    if ($validator->validate()) {
        $msg = '';
        return true;
    } else {
        $msg = doArray($validator->getMessages(), 'gTxt');
        $msg = array(join(', ', $msg), E_ERROR);
        return false;
    }
}

function file_save()
{
    global $file_base_path, $file_statuses, $txp_user;
    $varray = array_map('assert_string', gpsa(array('id', 'category', 'title', 'description', 'status', 'publish_now', 'year', 'month', 'day', 'hour', 'minute', 'second')));
    extract(doSlash($varray));
    $filename = $varray['filename'] = sanitizeForFile(gps('filename'));
    if ($filename == '') {
        file_list(array(gTxt('file_not_updated', array('{name}' => $filename)), E_ERROR));
        return;
    }
    $id = $varray['id'] = assert_int($id);
    $permissions = gps('perms');
    if (is_array($permissions)) {
        asort($permissions);
        $permissions = implode(",", $permissions);
    }
    $varray['permissions'] = $permissions;
    $perms = doSlash($permissions);
    $rs = safe_row('filename, author', 'txp_file', "id={$id}");
    if (!has_privs('file.edit') && !($rs['author'] === $txp_user && has_privs('file.edit.own'))) {
        require_privs();
    }
    $old_filename = $varray['old_filename'] = sanitizeForFile($rs['filename']);
    if ($old_filename != false && strcmp($old_filename, $filename) != 0) {
        $old_path = build_file_path($file_base_path, $old_filename);
        $new_path = build_file_path($file_base_path, $filename);
        if (file_exists($old_path) && shift_uploaded_file($old_path, $new_path) === false) {
            file_list(array(gTxt('file_cannot_rename', array('{name}' => $filename)), E_ERROR));
            return;
        } else {
            file_set_perm($new_path);
        }
    }
    $created_ts = @safe_strtotime($year . '-' . $month . '-' . $day . ' ' . $hour . ':' . $minute . ':' . $second);
    if ($publish_now) {
        $created = 'now()';
    } elseif ($created_ts > 0) {
        $created = "from_unixtime('" . $created_ts . "')";
    } else {
        $created = '';
    }
    $size = filesize(build_file_path($file_base_path, $filename));
    $constraints = array('category' => new CategoryConstraint(gps('category'), array('type' => 'file')), 'status' => new ChoiceConstraint(gps('status'), array('choices' => array_keys($file_statuses), 'message' => 'invalid_status')));
    callback_event_ref('file_ui', 'validate_save', 0, $varray, $constraints);
    $validator = new Validator($constraints);
    $rs = $validator->validate() && safe_update('txp_file', "\n        filename = '" . doSlash($filename) . "',\n        title = '{$title}',\n        category = '{$category}',\n        permissions = '{$perms}',\n        description = '{$description}',\n        status = '{$status}',\n        size = '{$size}',\n        modified = now()" . ($created ? ", created = {$created}" : ''), "id = {$id}");
    if (!$rs) {
        // Update failed, rollback name.
        if (isset($old_path) && shift_uploaded_file($new_path, $old_path) === false) {
            file_list(array(gTxt('file_unsynchronized', array('{name}' => $filename)), E_ERROR));
            return;
        } else {
            file_list(array(gTxt('file_not_updated', array('{name}' => $filename)), E_ERROR));
            return;
        }
    }
    update_lastmod('file_saved', compact('id', 'filename', 'title', 'category', 'description', 'status', 'size'));
    file_list(gTxt('file_updated', array('{name}' => $filename)));
}

function image_save()
{
    global $txp_user;
    $varray = array_map('assert_string', gpsa(array('id', 'name', 'category', 'caption', 'alt')));
    extract(doSlash($varray));
    $id = $varray['id'] = assert_int($id);
    $author = fetch('author', 'txp_image', 'id', $id);
    if (!has_privs('image.edit') && !($author === $txp_user && has_privs('image.edit.own'))) {
        image_list(gTxt('restricted_area'));
        return;
    }
    $constraints = array('category' => new CategoryConstraint(gps('category'), array('type' => 'image')));
    callback_event_ref('image_ui', 'validate_save', 0, $varray, $constraints);
    $validator = new Validator($constraints);
    if ($validator->validate() && safe_update("txp_image", "name    = '{$name}',\n        category = '{$category}',\n        alt      = '{$alt}',\n        caption  = '{$caption}'", "id = {$id}")) {
        $message = gTxt('image_updated', array('{name}' => doStrip($name)));
        update_lastmod();
    } else {
        $message = array(gTxt('image_save_failed'), E_ERROR);
    }
    image_list($message);
}

/**
 * Renders a widget to select various amounts to page lists by.
 *
 * The rendered options can be changed via a '{$event}_ui > pageby_values'
 * callback event.
 *
 * @param  string      $event Event
 * @param  int         $val   Current setting
 * @param  string|null $step  Step
 * @return string      HTML
 */
function pageby_form($event, $val, $step = null)
{
    $vals = array(15, 25, 50, 100);
    callback_event_ref($event . '_ui', 'pageby_values', 0, $vals);
    if ($step === null) {
        $step = $event . '_change_pageby';
    }
    $out = array();
    foreach ($vals as $qty) {
        if ($qty == $val) {
            $class = 'navlink-active';
            $aria_pressed = 'true';
        } else {
            $class = 'navlink';
            $aria_pressed = 'false';
        }
        $out[] = href($qty, array('event' => $event, 'step' => $step, 'qty' => $qty, '_txp_token' => form_token()), array('class' => $class, 'title' => gTxt('view_per_page', array('{page}' => $qty)), 'aria-pressed' => $aria_pressed, 'role' => 'button'));
    }
    return graf(join('', $out), array('class' => 'nav-tertiary pageby'));
}

/**
 * Return a list of status codes and their associated names.
 *
 * The list can be extended with a 'status.types > types' callback event.
 * Callback functions get passed three arguments: '$event', '$step' and
 * '$status_list'. The third parameter contains a reference to an array of
 * 'status_code => label' pairs.
 *
 * @param   bool  Return the list with L10n labels (for UI purposes) or raw values (for comparisons)
 * @param   array List of status keys (numbers) to exclude
 * @return  array A status array
 * @since   4.6.0
 */
function status_list($labels = true, $exclude = array())
{
    $status_list = array(STATUS_DRAFT => 'draft', STATUS_HIDDEN => 'hidden', STATUS_PENDING => 'pending', STATUS_LIVE => 'live', STATUS_STICKY => 'sticky');
    if (!is_array($exclude)) {
        $exclude = array();
    }
    foreach ($exclude as $remove) {
        unset($status_list[(int) $remove]);
    }
    callback_event_ref('status.types', 'types', 0, $status_list);
    if ($labels) {
        $status_list = array_map('gTxt', $status_list);
    }
    return $status_list;
}