User perm check (#2876)

* added 'user permission check'

* added 'can add repo' check

* [dir view, repo wiki mode] added condition check for 'share current dir'

* [dir view, repo wiki mode] modified var name

frontend/src/pages/groups/group-view.js

@@ -1,7 +1,7 @@
 import React,{ Fragment } from 'react';
 import { Popover } from 'reactstrap';
 import PropTypes from 'prop-types';
-import { gettext, siteRoot, username, loginUrl } from '../../utils/constants';
+import { gettext, siteRoot, username, loginUrl, canAddRepo } from '../../utils/constants';
 import { Link } from '@reach/router';
 import { seafileAPI } from '../../utils/seafile-api';
 import { Utils } from '../../utils/utils';
@@ -331,9 +331,11 @@ class GroupView extends React.Component {
           <div className="cur-view-toolbar border-left-show">
             <span className="sf2-icon-menu side-nav-toggle hidden-md-up d-md-none" title="Side Nav Menu" onClick={this.props.onShowSidePanel}></span>
             <div className="operation">
+              {canAddRepo && (
               <button className="btn btn-secondary operation-item" title={gettext('New Library')} onClick={this.onCreateRepoToggle}>
                 <i className="fas fa-plus-square text-secondary mr-1"></i>{gettext('New Library')}
               </button>
+              )}
             </div>
           </div>
           <CommonToolbar onSearchedClick={this.props.onSearchedClick} />