Use exchange instead of name in topic permission

References rabbitmq/rabbitmq-server#505

priv/www/api/index.html

@@ -732,7 +732,7 @@ <h2>Reference</h2>
         <td></td>
         <td class="path">/api/topic-permissions/<i>vhost</i>/<i>user</i></td>
         <td>Topic permissions for a user and virtual host. To PUT a topic permission, you will need a body looking something like this:
-          <pre>{"name":"amp.topic","pattern":"^a"}</pre>
+          <pre>{"exchange":"amp.topic","pattern":"^a"}</pre>
           All keys are mandatory.</td>
       </tr>
       <tr>

src/rabbit_mgmt_wm_definitions.erl

@@ -259,7 +259,7 @@ rw_state() ->
     [{users,              [name, password_hash, hashing_algorithm, tags]},
      {vhosts,             [name]},
      {permissions,        [user, vhost, configure, write, read]},
-     {topic_permissions,  [user, vhost, name, pattern]},
+     {topic_permissions,  [user, vhost, exchange, pattern]},
      {parameters,         [vhost, component, name, value]},
      {global_parameters,  [name, value]},
      {policies,           [vhost, name, pattern, definition, priority, 'apply-to']},
@@ -353,7 +353,7 @@ add_topic_permission(TopicPermission) ->
     rabbit_auth_backend_internal:set_topic_permissions(
         maps:get(user,      TopicPermission, undefined),
         maps:get(vhost,     TopicPermission, undefined),
-        maps:get(name,      TopicPermission, undefined),
+        maps:get(exchange,  TopicPermission, undefined),
         maps:get(pattern,   TopicPermission, undefined)).
 
 add_queue(Queue) ->

src/rabbit_mgmt_wm_topic_permission.erl

@@ -63,7 +63,7 @@ accept_content(ReqData, Context) ->
             User = rabbit_mgmt_util:id(user, ReqData),
             VHost = rabbit_mgmt_util:id(vhost, ReqData),
             rabbit_mgmt_util:with_decode(
-              [name, pattern], ReqData, Context,
+              [exchange, pattern], ReqData, Context,
               fun([Exchange, Pattern], _) ->
                       rabbit_auth_backend_internal:set_topic_permissions(
                         User, VHost, Exchange, Pattern),

test/rabbit_mgmt_http_SUITE.erl

@@ -460,7 +460,7 @@ topic_permissions_list_test(Config) ->
     http_put(Config, "/vhosts/myvhost1", none, {group, '2xx'}),
     http_put(Config, "/vhosts/myvhost2", none, {group, '2xx'}),
 
-    TopicPerms = [{name, <<"amq.topic">>}, {pattern, <<"^a">>}],
+    TopicPerms = [{exchange, <<"amq.topic">>}, {pattern, <<"^a">>}],
     http_put(Config, "/topic-permissions/myvhost1/myuser1", TopicPerms, {group, '2xx'}),
     http_put(Config, "/topic-permissions/myvhost2/myuser1", TopicPerms, {group, '2xx'}),
     http_put(Config, "/topic-permissions/myvhost1/myuser2", TopicPerms, {group, '2xx'}),
@@ -488,7 +488,7 @@ topic_permissions_test(Config) ->
     http_put(Config, "/vhosts/myvhost1", none, {group, '2xx'}),
     http_put(Config, "/vhosts/myvhost2", none, {group, '2xx'}),
 
-    TopicPerms = [{name, <<"amq.topic">>}, {pattern, <<"^a">>}],
+    TopicPerms = [{exchange, <<"amq.topic">>}, {pattern, <<"^a">>}],
     http_put(Config, "/topic-permissions/myvhost1/myuser1", TopicPerms, {group, '2xx'}),
     http_put(Config, "/topic-permissions/myvhost2/myuser1", TopicPerms, {group, '2xx'}),
     http_put(Config, "/topic-permissions/myvhost1/myuser2", TopicPerms, {group, '2xx'}),
@@ -1039,10 +1039,10 @@ definitions_test(Config) ->
            write     => <<"w">>,
            read      => <<"r">>}),
     defs(Config, topic_permissions, "/topic-permissions/%2f/guest", put,
-         #{user    => <<"guest">>,
-           vhost   => <<"/">>,
-           name    => <<"amq.topic">>,
-           pattern => <<"^a">>}),
+         #{user     => <<"guest">>,
+           vhost    => <<"/">>,
+           exchange => <<"amq.topic">>,
+           pattern  => <<"^a">>}),
 
     %% We just messed with guest's permissions
     http_put(Config, "/permissions/%2f/guest",