friendica/src/Core/ACL.php

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<?php
/**
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* @copyright Copyright (C) 2020, Friendica
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
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*/
namespace Friendica\Core;
use Friendica\App\Page;
use Friendica\Database\DBA;
use Friendica\DI;
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use Friendica\Model\Contact;
use Friendica\Model\Group;
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/**
* Handle ACL management and display
*/
class ACL
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{
/**
* Returns a select input tag with all the contact of the local user
*
* @param string $selname Name attribute of the select input tag
* @param string $selclass Class attribute of the select input tag
* @param array $preselected Contact IDs that should be already selected
* @param int $size Length of the select box
* @param int $tabindex Select input tag tabindex attribute
* @return string
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* @throws \Exception
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*/
public static function getMessageContactSelectHTML($selname, $selclass, array $preselected = [], $size = 4, $tabindex = null)
{
$a = DI::app();
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$o = '';
// When used for private messages, we limit correspondence to mutual DFRN/Friendica friends and the selector
// to one recipient. By default our selector allows multiple selects amongst all contacts.
$sql_extra = sprintf(" AND `rel` = %d ", intval(Contact::FRIEND));
$sql_extra .= sprintf(" AND `network` IN ('%s' , '%s') ", Protocol::DFRN, Protocol::DIASPORA);
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$tabindex_attr = !empty($tabindex) ? ' tabindex="' . intval($tabindex) . '"' : '';
$hidepreselected = '';
if ($preselected) {
$sql_extra .= " AND `id` IN (" . implode(",", $preselected) . ")";
$hidepreselected = ' style="display: none;"';
}
$o .= "<select name=\"$selname\" id=\"$selclass\" class=\"$selclass\" size=\"$size\"$tabindex_attr$hidepreselected>\r\n";
$stmt = DBA::p("SELECT `id`, `name`, `url`, `network` FROM `contact`
WHERE `uid` = ? AND NOT `self` AND NOT `blocked` AND NOT `pending` AND NOT `archive` AND NOT `deleted` AND `notify` != ''
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$sql_extra
ORDER BY `name` ASC ", intval(local_user())
);
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$contacts = DBA::toArray($stmt);
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$arr = ['contact' => $contacts, 'entry' => $o];
// e.g. 'network_pre_contact_deny', 'profile_pre_contact_allow'
Hook::callAll(DI::module()->getName() . '_pre_' . $selname, $arr);
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$receiverlist = [];
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if (DBA::isResult($contacts)) {
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foreach ($contacts as $contact) {
if (in_array($contact['id'], $preselected)) {
$selected = ' selected="selected"';
} else {
$selected = '';
}
$trimmed = Protocol::formatMention($contact['url'], $contact['name']);
$receiverlist[] = $trimmed;
$o .= "<option value=\"{$contact['id']}\"$selected title=\"{$contact['name']}|{$contact['url']}\" >$trimmed</option>\r\n";
}
}
$o .= '</select>' . PHP_EOL;
if ($preselected) {
$o .= implode(', ', $receiverlist);
}
Hook::callAll(DI::module()->getName() . '_post_' . $selname, $o);
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return $o;
}
/**
* Return the default permission of the provided user array
*
* @param array $user
* @return array Hash of contact id lists
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* @throws \Exception
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*/
public static function getDefaultUserPermissions(array $user = null)
{
$aclFormatter = DI::aclFormatter();
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return [
'allow_cid' => Contact::pruneUnavailable($aclFormatter->expand($user['allow_cid'] ?? '')),
'allow_gid' => $aclFormatter->expand($user['allow_gid'] ?? ''),
'deny_cid' => $aclFormatter->expand($user['deny_cid'] ?? ''),
'deny_gid' => $aclFormatter->expand($user['deny_gid'] ?? ''),
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];
}
/**
* Returns the ACL list of contacts for a given user id
*
* @param int $user_id
* @param array $condition Additional contact lookup table conditions
* @return array
* @throws \Exception
*/
public static function getContactListByUserId(int $user_id, array $condition = [])
{
$fields = ['id', 'name', 'addr', 'micro'];
$params = ['order' => ['name']];
$acl_contacts = Contact::selectToArray(
$fields,
array_merge([
'uid' => $user_id,
'self' => false,
'blocked' => false,
'archive' => false,
'deleted' => false,
'pending' => false,
'rel' => [Contact::FOLLOWER, Contact::FRIEND]
], $condition),
$params
);
$acl_yourself = Contact::selectFirst($fields, ['uid' => $user_id, 'self' => true]);
$acl_yourself['name'] = DI::l10n()->t('Yourself');
$acl_contacts[] = $acl_yourself;
$acl_forums = Contact::selectToArray($fields,
['uid' => $user_id, 'self' => false, 'blocked' => false, 'archive' => false, 'deleted' => false,
'pending' => false, 'contact-type' => Contact::TYPE_COMMUNITY], $params
);
$acl_contacts = array_merge($acl_forums, $acl_contacts);
array_walk($acl_contacts, function (&$value) {
$value['type'] = 'contact';
});
return $acl_contacts;
}
/**
* Returns the ACL list of groups (including meta-groups) for a given user id
*
* @param int $user_id
* @return array
*/
public static function getGroupListByUserId(int $user_id)
{
$acl_groups = [
[
'id' => Group::FOLLOWERS,
'name' => DI::l10n()->t('Followers'),
'addr' => '',
'micro' => 'images/twopeople.png',
'type' => 'group',
],
[
'id' => Group::MUTUALS,
'name' => DI::l10n()->t('Mutuals'),
'addr' => '',
'micro' => 'images/twopeople.png',
'type' => 'group',
]
];
foreach (Group::getByUserId($user_id) as $group) {
$acl_groups[] = [
'id' => $group['id'],
'name' => $group['name'],
'addr' => '',
'micro' => 'images/twopeople.png',
'type' => 'group',
];
}
return $acl_groups;
}
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/**
* Return the full jot ACL selector HTML
*
* @param Page $page
* @param array $user User array
* @param bool $for_federation
* @param array $default_permissions Static defaults permission array:
* [
* 'allow_cid' => [],
* 'allow_gid' => [],
* 'deny_cid' => [],
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* 'deny_gid' => []
* ]
* @param array $condition
* @param string $form_prefix
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* @return string
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
public static function getFullSelectorHTML(
Page $page,
array $user = null,
bool $for_federation = false,
array $default_permissions = [],
array $condition = [],
$form_prefix = ''
) {
if (empty($user['uid'])) {
return '';
}
static $input_group_id = 0;
$input_group_id++;
$page->registerFooterScript(Theme::getPathForFile('asset/typeahead.js/dist/typeahead.bundle.js'));
$page->registerFooterScript(Theme::getPathForFile('js/friendica-tagsinput/friendica-tagsinput.js'));
$page->registerStylesheet(Theme::getPathForFile('js/friendica-tagsinput/friendica-tagsinput.css'));
$page->registerStylesheet(Theme::getPathForFile('js/friendica-tagsinput/friendica-tagsinput-typeahead.css'));
// Defaults user permissions
if (empty($default_permissions)) {
$default_permissions = self::getDefaultUserPermissions($user);
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}
$default_permissions = [
'allow_cid' => $default_permissions['allow_cid'] ?? [],
'allow_gid' => $default_permissions['allow_gid'] ?? [],
'deny_cid' => $default_permissions['deny_cid'] ?? [],
'deny_gid' => $default_permissions['deny_gid'] ?? [],
];
if (count($default_permissions['allow_cid'])
+ count($default_permissions['allow_gid'])
+ count($default_permissions['deny_cid'])
+ count($default_permissions['deny_gid'])) {
$visibility = 'custom';
} else {
$visibility = 'public';
// Default permission display for custom panel
$default_permissions['allow_gid'] = [Group::FOLLOWERS];
}
$jotnets_fields = [];
if ($for_federation) {
if (function_exists('imap_open') && !DI::config()->get('system', 'imap_disabled')) {
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$mailacct = DBA::selectFirst('mailacct', ['pubmail'], ['`uid` = ? AND `server` != ""', $user['uid']]);
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if (DBA::isResult($mailacct)) {
$jotnets_fields[] = [
'type' => 'checkbox',
'field' => [
'pubmail_enable',
DI::l10n()->t('Post to Email'),
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!empty($mailacct['pubmail'])
]
];
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}
}
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Hook::callAll('jot_networks', $jotnets_fields);
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}
$acl_contacts = self::getContactListByUserId($user['uid'], $condition);
$acl_groups = self::getGroupListByUserId($user['uid']);
$acl_list = array_merge($acl_groups, $acl_contacts);
$input_names = [
'visibility' => $form_prefix ? $form_prefix . '[visibility]' : 'visibility',
'group_allow' => $form_prefix ? $form_prefix . '[group_allow]' : 'group_allow',
'contact_allow' => $form_prefix ? $form_prefix . '[contact_allow]' : 'contact_allow',
'group_deny' => $form_prefix ? $form_prefix . '[group_deny]' : 'group_deny',
'contact_deny' => $form_prefix ? $form_prefix . '[contact_deny]' : 'contact_deny',
'emailcc' => $form_prefix ? $form_prefix . '[emailcc]' : 'emailcc',
];
$tpl = Renderer::getMarkupTemplate('acl_selector.tpl');
$o = Renderer::replaceMacros($tpl, [
'$public_title' => DI::l10n()->t('Public'),
'$public_desc' => DI::l10n()->t('This content will be shown to all your followers and can be seen in the community pages and by anyone with its link.'),
'$custom_title' => DI::l10n()->t('Limited/Private'),
'$custom_desc' => DI::l10n()->t('This content will be shown only to the people in the first box, to the exception of the people mentioned in the second box. It won\'t appear anywhere public.'),
'$allow_label' => DI::l10n()->t('Show to:'),
'$deny_label' => DI::l10n()->t('Except to:'),
'$emailcc' => DI::l10n()->t('CC: email addresses'),
'$emtitle' => DI::l10n()->t('Example: bob@example.com, mary@example.com'),
'$jotnets_summary' => DI::l10n()->t('Connectors'),
'$visibility' => $visibility,
'$acl_contacts' => $acl_contacts,
'$acl_groups' => $acl_groups,
'$acl_list' => $acl_list,
'$contact_allow' => implode(',', $default_permissions['allow_cid']),
'$group_allow' => implode(',', $default_permissions['allow_gid']),
'$contact_deny' => implode(',', $default_permissions['deny_cid']),
'$group_deny' => implode(',', $default_permissions['deny_gid']),
'$for_federation' => $for_federation,
'$jotnets_fields' => $jotnets_fields,
'$input_names' => $input_names,
'$input_group_id' => $input_group_id,
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]);
return $o;
}
}