From ee9795d8f466706e06b2fdbc9beca2f8ecbf5d08 Mon Sep 17 00:00:00 2001 From: fiaxh Date: Sat, 25 Apr 2020 16:12:08 +0200 Subject: Handle if Items/InfoResult are null --- .../xep/0030_service_discovery/items_result.vala | 4 ++++ .../module/xep/0030_service_discovery/module.vala | 6 +++--- .../src/module/xep/0065_socks5_bytestreams.vala | 1 + .../src/module/xep/0115_entitiy_capabilities.vala | 1 + xmpp-vala/src/module/xep/0363_http_file_upload.vala | 20 ++++++++++++++++---- 5 files changed, 25 insertions(+), 7 deletions(-) (limited to 'xmpp-vala') diff --git a/xmpp-vala/src/module/xep/0030_service_discovery/items_result.vala b/xmpp-vala/src/module/xep/0030_service_discovery/items_result.vala index 233a0c06..105da893 100644 --- a/xmpp-vala/src/module/xep/0030_service_discovery/items_result.vala +++ b/xmpp-vala/src/module/xep/0030_service_discovery/items_result.vala @@ -26,6 +26,10 @@ public class ItemsResult { } public static ItemsResult? create_from_iq(Iq.Stanza iq) { + if (iq.type_ != Iq.Stanza.TYPE_RESULT) return null; + + if (iq.stanza.get_subnode("query", NS_URI_ITEMS) == null) return null; + return new ItemsResult.from_iq(iq); } } diff --git a/xmpp-vala/src/module/xep/0030_service_discovery/module.vala b/xmpp-vala/src/module/xep/0030_service_discovery/module.vala index 708d5311..f21146f1 100644 --- a/xmpp-vala/src/module/xep/0030_service_discovery/module.vala +++ b/xmpp-vala/src/module/xep/0030_service_discovery/module.vala @@ -46,11 +46,11 @@ public class Module : XmppStreamModule, Iq.Handler { if (flag.has_entity_feature(jid, feature) == null) { InfoResult? info_result = yield request_info(stream, jid); - stream.get_flag(Flag.IDENTITY).set_entity_features(info_result.iq.from, info_result != null ? info_result.features : null); - stream.get_flag(Flag.IDENTITY).set_entity_identities(info_result.iq.from, info_result != null ? info_result.identities : null); + stream.get_flag(Flag.IDENTITY).set_entity_features(jid, info_result != null ? info_result.features : null); + stream.get_flag(Flag.IDENTITY).set_entity_identities(jid, info_result != null ? info_result.identities : null); } - return flag.has_entity_feature(jid, feature); + return flag.has_entity_feature(jid, feature) ?? false; } public async Gee.Set? get_entity_identities(XmppStream stream, Jid jid) { diff --git a/xmpp-vala/src/module/xep/0065_socks5_bytestreams.vala b/xmpp-vala/src/module/xep/0065_socks5_bytestreams.vala index bdc54879..fdee2411 100644 --- a/xmpp-vala/src/module/xep/0065_socks5_bytestreams.vala +++ b/xmpp-vala/src/module/xep/0065_socks5_bytestreams.vala @@ -35,6 +35,7 @@ public class Module : XmppStreamModule, Iq.Handler { private async void query_availability(XmppStream stream) { ServiceDiscovery.ItemsResult? items_result = yield stream.get_module(ServiceDiscovery.Module.IDENTITY).request_items(stream, stream.remote_name); + if (items_result == null) return; foreach (Xep.ServiceDiscovery.Item item in items_result.items) { bool has_feature = yield stream.get_module(ServiceDiscovery.Module.IDENTITY).has_entity_feature(stream, item.jid, NS_URI); diff --git a/xmpp-vala/src/module/xep/0115_entitiy_capabilities.vala b/xmpp-vala/src/module/xep/0115_entitiy_capabilities.vala index 60d13211..20279546 100644 --- a/xmpp-vala/src/module/xep/0115_entitiy_capabilities.vala +++ b/xmpp-vala/src/module/xep/0115_entitiy_capabilities.vala @@ -86,6 +86,7 @@ namespace Xmpp.Xep.EntityCapabilities { ServiceDiscovery.Identity identity = storage.get_identities(caps_hash); if (identity == null) { ServiceDiscovery.InfoResult? info_result = yield stream.get_module(ServiceDiscovery.Module.IDENTITY).request_info(stream, jid_from); + if (info_result == null) return; store_entity_result(stream, caps_hash, info_result); } else { stream.get_flag(ServiceDiscovery.Flag.IDENTITY).set_entity_features(jid_from, capabilities); diff --git a/xmpp-vala/src/module/xep/0363_http_file_upload.vala b/xmpp-vala/src/module/xep/0363_http_file_upload.vala index 64fbbebc..a6ebbecb 100644 --- a/xmpp-vala/src/module/xep/0363_http_file_upload.vala +++ b/xmpp-vala/src/module/xep/0363_http_file_upload.vala @@ -116,14 +116,26 @@ public class Module : XmppStreamModule { bool available = check_ns_in_info(stream, stream.remote_name, info_result); if (!available) { ServiceDiscovery.ItemsResult? items_result = yield stream.get_module(ServiceDiscovery.Module.IDENTITY).request_items(stream, stream.remote_name); - foreach (Xep.ServiceDiscovery.Item item in items_result.items) { - ServiceDiscovery.InfoResult? info_result2 = yield stream.get_module(ServiceDiscovery.Module.IDENTITY).request_info(stream, item.jid); - check_ns_in_info(stream, item.jid, info_result2); + if (items_result == null) return; + + for (int i = 0; i < 2; i++) { + foreach (Xep.ServiceDiscovery.Item item in items_result.items) { + + // First try the promising items and only afterwards all the others + bool promising_upload_item = item.jid.to_string().has_prefix("upload"); + if ((i == 0 && !promising_upload_item) || (i == 1) && promising_upload_item) continue; + + ServiceDiscovery.InfoResult? info_result2 = yield stream.get_module(ServiceDiscovery.Module.IDENTITY).request_info(stream, item.jid); + bool available2 = check_ns_in_info(stream, item.jid, info_result2); + if (available2) return; + } } } } - private bool check_ns_in_info(XmppStream stream, Jid jid, Xep.ServiceDiscovery.InfoResult info_result) { + private bool check_ns_in_info(XmppStream stream, Jid jid, Xep.ServiceDiscovery.InfoResult? info_result) { + if (info_result == null) return false; + bool ver_available = false; bool ver_0_available = false; foreach (string feature in info_result.features) { -- cgit v1.2.3-54-g00ecf