权限没有,则隐藏 function forum_list_access_filter($forumlist, $gid, $allow = 'allowread') { global $grouplist; if (empty($forumlist)) return array(); if (1 == $gid) return $forumlist; $forumlist_filter = $forumlist; $group = $grouplist[$gid]; foreach ($forumlist_filter as $fid => $forum) { if (empty($forum['accesson']) && empty($group[$allow]) || !empty($forum['accesson']) && empty($forum['accesslist'][$gid][$allow])) { unset($forumlist_filter[$fid]); } unset($forumlist_filter[$fid]['accesslist']); } return $forumlist_filter; } function forum_filter_moduid($moduids) { $moduids = trim($moduids); if (empty($moduids)) return ''; $arr = explode(',', $moduids); $r = array(); foreach ($arr as $_uid) { $_uid = intval($_uid); $_user = user_read($_uid); if (empty($_user)) continue; if ($_user['gid'] > 4) continue; $r[] = $_uid; } return implode(',', $r); } function forum_safe_info($forum) { //unset($forum['moduids']); return $forum; } function forum_filter($forumlist) { foreach ($forumlist as &$val) { unset($val['brief'], $val['announcement'], $val['seo_title'], $val['seo_keywords'], $val['create_date_fmt'], $val['icon_url'], $val['modlist']); } return $forumlist; } function forum_format_url($forum) { global $conf; if (0 == $forum['category']) { // 列表URL $url = url('list-' . $forum['fid'], '', FALSE); } elseif (1 == $forum['category']) { // 频道 $url = url('category-' . $forum['fid'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = url('read-' . trim($forum['brief']), '', FALSE); } if ($conf['url_rewrite_on'] > 1 && $forum['well_alias']) { if (0 == $forum['category'] || 1 == $forum['category']) { $url = url($forum['well_alias'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = ($forum['threads'] && $forum['brief']) ? url($forum['well_alias'] . '-' . trim($forum['brief']), '', FALSE) : url($forum['well_alias'], '', FALSE); } } return $url; } function well_forum_alias() { $forumlist = forum_list_cache(); if (empty($forumlist)) return ''; $key = 'forum-alias'; static $cache = array(); if (isset($cache[$key])) return $cache[$key]; $cache[$key] = array(); foreach ($forumlist as $val) { if ($val['well_alias']) $cache[$key][$val['fid']] = $val['well_alias']; } return array_flip($cache[$key]); } function well_forum_alias_cache() { global $conf; $key = 'forum-alias-cache'; static $cache = array(); // 用静态变量只能在当前 request 生命周期缓存,跨进程需要再加一层缓存:redis/memcached/xcache/apc if (isset($cache[$key])) return $cache[$key]; if ('mysql' == $conf['cache']['type']) { $arr = well_forum_alias(); } else { $arr = cache_get($key); if (NULL === $arr) { $arr = well_forum_alias(); !empty($arr) AND cache_set($key, $arr); } } $cache[$key] = empty($arr) ? '' : $arr; return $cache[$key]; } ?>custom post types - REST filters only firing when I have a param set
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custom post types - REST filters only firing when I have a param set

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I'm trying to use a REST filter to require a certain parameter is set.

Using custom taxonomies and custom posts I've been able to make it so when I request

/wp-json/wp/v2/car?visible_to=123

That the only Cars that come back are ones with a visible_to taxonomy of 123.

However when someone asks for

/wp-json/wp/v2/car

I want to throw an error, saying that ?visible_to needs to be set.

I've tried hooking into rest_index, rest_pre_dispatch, and some others. Each only fires when I have ?visible_to set in the URL, without them the hooks don't fire.

For example, I would expect this to fire on every REST request

add_filter( 'rest_pre_dispatch','to_limit_access', 1, 3);

function to_limit_access($args, $request, $context) {
  return new WP_Error( 'rest_disabled', __( 'The REST API is disabled on this site.' ), array( 'status' => 404 ) );
}

But it will only return a WP_Error on

/wp-json/wp/v2/car?visible_to=123

Both

/wp-json/wp/v2/car

And

/wp-json/wp/v2/car/6

Run without that filter being hit.

Can someone explain why this would be the case and what I can do to avoid it?

I've also tried specific filters like rest_prepare_car but I couldn't get it to fire at all.

I'm trying to use a REST filter to require a certain parameter is set.

Using custom taxonomies and custom posts I've been able to make it so when I request

/wp-json/wp/v2/car?visible_to=123

That the only Cars that come back are ones with a visible_to taxonomy of 123.

However when someone asks for

/wp-json/wp/v2/car

I want to throw an error, saying that ?visible_to needs to be set.

I've tried hooking into rest_index, rest_pre_dispatch, and some others. Each only fires when I have ?visible_to set in the URL, without them the hooks don't fire.

For example, I would expect this to fire on every REST request

add_filter( 'rest_pre_dispatch','to_limit_access', 1, 3);

function to_limit_access($args, $request, $context) {
  return new WP_Error( 'rest_disabled', __( 'The REST API is disabled on this site.' ), array( 'status' => 404 ) );
}

But it will only return a WP_Error on

/wp-json/wp/v2/car?visible_to=123

Both

/wp-json/wp/v2/car

And

/wp-json/wp/v2/car/6

Run without that filter being hit.

Can someone explain why this would be the case and what I can do to avoid it?

I've also tried specific filters like rest_prepare_car but I couldn't get it to fire at all.

Share Improve this question asked Sep 21, 2020 at 9:22 TobyToby 3663 silver badges13 bronze badges
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2 Answers 2

Reset to default 1

If you want a parameter to be required for a post type's REST API endpoint you can use the rest_{$this->post_type}_collection_params filter to filter the $args of the GET endpoint:

add_filter(
    'rest_car_collection_params',
    function( array $query_params ) {
        $query_params['visible_to']['required'] = true;
        
        return $query_params;
    }
);

In turns out we had a caching plugin enabled that was getting in the way of some requests but not others, leading to this inconsistency.

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