Allow configuring auth header logo

src/components/views/auth/VectorAuthHeaderLogo.js

@@ -19,8 +19,7 @@ limitations under the License.
 
 import React from 'react';
 import PropTypes from 'prop-types';
-
-const LOGO_URI = "themes/riot/img/logos/riot-im-logo-black-text.svg";
+import SdkConfig from 'matrix-react-sdk/lib/SdkConfig';
 
 export default class VectorAuthHeaderLogo extends React.PureComponent {
     static replaces = 'AuthHeaderLogo'
@@ -30,9 +29,15 @@ export default class VectorAuthHeaderLogo extends React.PureComponent {
     }
 
     render() {
+        const brandingConfig = SdkConfig.get().branding;
+        let logoUrl = "themes/riot/img/logos/riot-im-logo-black-text.svg";
+        if (brandingConfig && brandingConfig.authHeaderLogoUrl) {
+            logoUrl = brandingConfig.authHeaderLogoUrl;
+        }
+
         return (
             <div className="mx_AuthHeaderLogo">
-                <img src={LOGO_URI} alt="Riot" />
+                <img src={logoUrl} alt="Riot" />
             </div>
         );
     }