PLT-5900 Removed automatic configuration of SiteURL (#5952)

* Revert "PLT-5765 Passed SiteURL to SendNotifications (#5705)"

This reverts commit a8e68bd890.

* Removed automatic configuration of SiteURL

* Reverted unintentional config changes

* Updated help text

* Added link to docs in Site URL warning

* Fixed merge conflict

webapp/components/error_bar.jsx

@@ -13,11 +13,13 @@ const StatTypes = Constants.StatTypes;
 
 import React from 'react';
 import {FormattedMessage, FormattedHTMLMessage} from 'react-intl';
+import {Link} from 'react-router';
 
 const EXPIRING_ERROR = 'error_bar.expiring';
 const EXPIRED_ERROR = 'error_bar.expired';
 const PAST_GRACE_ERROR = 'error_bar.past_grace';
 const RENEWAL_LINK = 'https://licensing.mattermost.com/renew';
+const SITE_URL_ERROR = 'error_bar.site_url';
 
 const BAR_DEVELOPER_TYPE = 'developer';
 const BAR_CRITICAL_TYPE = 'critical';
@@ -32,15 +34,31 @@ export default class ErrorBar extends React.Component {
 
         ErrorStore.clearLastError();
 
+        this.setInitialError();
+
+        this.state = ErrorStore.getLastError();
+    }
+
+    setInitialError() {
         let isSystemAdmin = false;
         const user = UserStore.getCurrentUser();
         if (user) {
             isSystemAdmin = Utils.isSystemAdmin(user.roles);
         }
 
-        if (!ErrorStore.getIgnoreNotification() && global.window.mm_config.SendEmailNotifications === 'false') {
-            ErrorStore.storeLastError({notification: true, message: Utils.localizeMessage('error_bar.preview_mode', 'Preview Mode: Email notifications have not been configured')});
-        } else if (isLicensePastGracePeriod()) {
+        const errorIgnored = ErrorStore.getIgnoreNotification();
+
+        if (!errorIgnored) {
+            if (global.mm_config.SendEmailNotifications === 'false') {
+                ErrorStore.storeLastError({notification: true, message: Utils.localizeMessage('error_bar.preview_mode', 'Preview Mode: Email notifications have not been configured')});
+                return;
+            } else if (isSystemAdmin && global.mm_config.SiteURL === '') {
+                ErrorStore.storeLastError({notification: true, message: SITE_URL_ERROR});
+                return;
+            }
+        }
+
+        if (isLicensePastGracePeriod()) {
             if (isSystemAdmin) {
                 ErrorStore.storeLastError({notification: true, message: EXPIRED_ERROR, type: BAR_CRITICAL_TYPE});
             } else {
@@ -51,8 +69,6 @@ export default class ErrorBar extends React.Component {
         } else if (isLicenseExpiring() && isSystemAdmin) {
             ErrorStore.storeLastError({notification: true, message: EXPIRING_ERROR});
         }
-
-        this.state = ErrorStore.getLastError();
     }
 
     isValidError(s) {
@@ -157,6 +173,45 @@ export default class ErrorBar extends React.Component {
                     defaultMessage='Enterprise license is expired and some features may be disabled. Please contact your System Administrator for details.'
                 />
             );
+        } else if (message === SITE_URL_ERROR) {
+            let id;
+            let defaultMessage;
+            if (global.mm_config.EnableSignUpWithGitLab === 'true') {
+                id = 'error_bar.site_url_gitlab';
+                defaultMessage = '{docsLink} is now a required setting. Please configure it in the System Console or in gitlab.rb if you\'re using GitLab Mattermost.';
+            } else {
+                id = 'error_bar.site_url';
+                defaultMessage = '{docsLink} is now a required setting. Please configure it in {link}.';
+            }
+
+            message = (
+                <FormattedMessage
+                    id={id}
+                    defaultMessage={defaultMessage}
+                    values={{
+                        docsLink: (
+                            <a
+                                href='https://docs.mattermost.com/administration/config-settings.html#site-url'
+                                rel='noopener noreferrer'
+                                target='_blank'
+                            >
+                                <FormattedMessage
+                                    id='error_bar.site_url.docsLink'
+                                    defaultMessage='Site URL'
+                                />
+                            </a>
+                        ),
+                        link: (
+                            <Link to='/admin_console/general/configuration'>
+                                <FormattedMessage
+                                    id='error_bar.site_url.link'
+                                    defaultMessage='the System Console'
+                                />
+                            </Link>
+                        )
+                    }}
+                />
+            );
         }
 
         return (