Handle if Items/InfoResult are null
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231df1bbbb
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@ -26,6 +26,10 @@ public class ItemsResult {
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}
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public static ItemsResult? create_from_iq(Iq.Stanza iq) {
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if (iq.type_ != Iq.Stanza.TYPE_RESULT) return null;
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if (iq.stanza.get_subnode("query", NS_URI_ITEMS) == null) return null;
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return new ItemsResult.from_iq(iq);
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}
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}
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@ -46,11 +46,11 @@ public class Module : XmppStreamModule, Iq.Handler {
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if (flag.has_entity_feature(jid, feature) == null) {
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InfoResult? info_result = yield request_info(stream, jid);
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stream.get_flag(Flag.IDENTITY).set_entity_features(info_result.iq.from, info_result != null ? info_result.features : null);
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stream.get_flag(Flag.IDENTITY).set_entity_identities(info_result.iq.from, info_result != null ? info_result.identities : null);
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stream.get_flag(Flag.IDENTITY).set_entity_features(jid, info_result != null ? info_result.features : null);
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stream.get_flag(Flag.IDENTITY).set_entity_identities(jid, info_result != null ? info_result.identities : null);
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}
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return flag.has_entity_feature(jid, feature);
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return flag.has_entity_feature(jid, feature) ?? false;
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}
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public async Gee.Set<Identity>? get_entity_identities(XmppStream stream, Jid jid) {
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@ -35,6 +35,7 @@ public class Module : XmppStreamModule, Iq.Handler {
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private async void query_availability(XmppStream stream) {
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ServiceDiscovery.ItemsResult? items_result = yield stream.get_module(ServiceDiscovery.Module.IDENTITY).request_items(stream, stream.remote_name);
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if (items_result == null) return;
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foreach (Xep.ServiceDiscovery.Item item in items_result.items) {
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bool has_feature = yield stream.get_module(ServiceDiscovery.Module.IDENTITY).has_entity_feature(stream, item.jid, NS_URI);
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@ -86,6 +86,7 @@ namespace Xmpp.Xep.EntityCapabilities {
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ServiceDiscovery.Identity identity = storage.get_identities(caps_hash);
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if (identity == null) {
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ServiceDiscovery.InfoResult? info_result = yield stream.get_module(ServiceDiscovery.Module.IDENTITY).request_info(stream, jid_from);
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if (info_result == null) return;
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store_entity_result(stream, caps_hash, info_result);
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} else {
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stream.get_flag(ServiceDiscovery.Flag.IDENTITY).set_entity_features(jid_from, capabilities);
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@ -116,14 +116,26 @@ public class Module : XmppStreamModule {
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bool available = check_ns_in_info(stream, stream.remote_name, info_result);
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if (!available) {
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ServiceDiscovery.ItemsResult? items_result = yield stream.get_module(ServiceDiscovery.Module.IDENTITY).request_items(stream, stream.remote_name);
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if (items_result == null) return;
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for (int i = 0; i < 2; i++) {
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foreach (Xep.ServiceDiscovery.Item item in items_result.items) {
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// First try the promising items and only afterwards all the others
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bool promising_upload_item = item.jid.to_string().has_prefix("upload");
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if ((i == 0 && !promising_upload_item) || (i == 1) && promising_upload_item) continue;
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ServiceDiscovery.InfoResult? info_result2 = yield stream.get_module(ServiceDiscovery.Module.IDENTITY).request_info(stream, item.jid);
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check_ns_in_info(stream, item.jid, info_result2);
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bool available2 = check_ns_in_info(stream, item.jid, info_result2);
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if (available2) return;
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}
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}
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}
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}
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private bool check_ns_in_info(XmppStream stream, Jid jid, Xep.ServiceDiscovery.InfoResult info_result) {
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private bool check_ns_in_info(XmppStream stream, Jid jid, Xep.ServiceDiscovery.InfoResult? info_result) {
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if (info_result == null) return false;
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bool ver_available = false;
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bool ver_0_available = false;
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foreach (string feature in info_result.features) {
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