Proper checking of disco support for push notifications

dist/converse.js

@@ -73337,7 +73337,8 @@ var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_
 
   const _converse$env = converse.env,
         Strophe = _converse$env.Strophe,
-        $iq = _converse$env.$iq;
+        $iq = _converse$env.$iq,
+        _ = _converse$env._;
   Strophe.addNamespace('PUSH', 'urn:xmpp:push:0');
   converse.plugins.add('converse-push', {
     initialize() {
@@ -73359,7 +73360,16 @@ var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_
         }
 
         if (_converse.push_service && _converse.push_service_node) {
-          Promise.all([_converse.api.disco.getIdentity('pubsub', 'push', _converse.push_service), _converse.api.disco.supports(Strophe.NS.PUSH, _converse.push_service)]).then(() => _converse.api.disco.supports(Strophe.NS.PUSH, _converse.bare_jid)).then(() => {
+          _converse.api.disco.getIdentity('pubsub', 'push', _converse.push_service).then(identity => {
+            if (!identity) {
+              return _converse.log(`Not enabling push the service "${_converse.push_service}", it doesn't have the right disco identtiy.`, Strophe.LogLevel.WARN);
+            }
+
+            return Promise.all([_converse.api.disco.supports(Strophe.NS.PUSH, _converse.push_service), _converse.api.disco.supports(Strophe.NS.PUSH, _converse.bare_jid)]).then(result => {
+              if (!result[0].length && !result[1].length) {
+                return _converse.log(`Not enabling push service "${_converse.push_service}", no disco support`, Strophe.LogLevel.WARN);
+              }
+
               const stanza = $iq({
                 'type': 'set'
               }).c('enable', {
@@ -73384,7 +73394,8 @@ var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_
 
                 _converse.log(e, Strophe.LogLevel.ERROR);
               });
-          });
+            }).catch(_.partial(_converse.log, _, Strophe.LogLevel.FATAL));
+          }).catch(_.partial(_converse.log, _, Strophe.LogLevel.FATAL));
         }
       }
 

src/converse-push.js

@@ -11,7 +11,7 @@
     define(["converse-core"], factory);
 }(this, function (converse) {
     "use strict";
-    const { Strophe, $iq } = converse.env;
+    const { Strophe, $iq, _ } = converse.env;
 
 
     Strophe.addNamespace('PUSH', 'urn:xmpp:push:0');
@@ -37,11 +37,24 @@
                     return;
                 }
                 if (_converse.push_service && _converse.push_service_node) {
-                    Promise.all([
-                        _converse.api.disco.getIdentity('pubsub', 'push', _converse.push_service),
-                        _converse.api.disco.supports(Strophe.NS.PUSH, _converse.push_service)
-                    ]).then(() => _converse.api.disco.supports(Strophe.NS.PUSH, _converse.bare_jid))
-                      .then(() => {
+                    _converse.api.disco.getIdentity('pubsub', 'push', _converse.push_service)
+                    .then((identity) => {
+                        if (!identity) {
+                            return _converse.log(
+                                `Not enabling push the service "${_converse.push_service}", it doesn't have the right disco identtiy.`,
+                                Strophe.LogLevel.WARN
+                            );
+                        }
+                        return Promise.all([
+                            _converse.api.disco.supports(Strophe.NS.PUSH, _converse.push_service),
+                            _converse.api.disco.supports(Strophe.NS.PUSH, _converse.bare_jid)
+                        ]).then((result) => {
+                            if (!result[0].length && !result[1].length) {
+                                return _converse.log(
+                                    `Not enabling push service "${_converse.push_service}", no disco support`,
+                                    Strophe.LogLevel.WARN
+                                );
+                            }
                             const stanza = $iq({'type': 'set'})
                                 .c('enable', {
                                     'xmlns': Strophe.NS.PUSH,
@@ -61,7 +74,8 @@
                                     _converse.log(`Could not enable push service for ${_converse.push_service}`, Strophe.LogLevel.ERROR);
                                     _converse.log(e, Strophe.LogLevel.ERROR);
                                 });
-                    });
+                        }).catch(_.partial(_converse.log, _, Strophe.LogLevel.FATAL));
+                    }).catch(_.partial(_converse.log, _, Strophe.LogLevel.FATAL));
                 }
             }
             _converse.api.listen.on('statusInitialized', enablePush);