add vendoring

vendor/maunium.net/go/mautrix/pushrules/ruleset.go

@@ -0,0 +1,88 @@
+// Copyright (c) 2020 Tulir Asokan
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+package pushrules
+
+import (
+	"encoding/json"
+
+	"maunium.net/go/mautrix/event"
+)
+
+type PushRuleset struct {
+	Override  PushRuleArray
+	Content   PushRuleArray
+	Room      PushRuleMap
+	Sender    PushRuleMap
+	Underride PushRuleArray
+}
+
+type rawPushRuleset struct {
+	Override  PushRuleArray `json:"override"`
+	Content   PushRuleArray `json:"content"`
+	Room      PushRuleArray `json:"room"`
+	Sender    PushRuleArray `json:"sender"`
+	Underride PushRuleArray `json:"underride"`
+}
+
+// UnmarshalJSON parses JSON into this PushRuleset.
+//
+// For override, sender and underride push rule arrays, the type is added
+// to each PushRule and the array is used as-is.
+//
+// For room and sender push rule arrays, the type is added to each PushRule
+// and the array is converted to a map with the rule ID as the key and the
+// PushRule as the value.
+func (rs *PushRuleset) UnmarshalJSON(raw []byte) (err error) {
+	data := rawPushRuleset{}
+	err = json.Unmarshal(raw, &data)
+	if err != nil {
+		return
+	}
+
+	rs.Override = data.Override.SetType(OverrideRule)
+	rs.Content = data.Content.SetType(ContentRule)
+	rs.Room = data.Room.SetTypeAndMap(RoomRule)
+	rs.Sender = data.Sender.SetTypeAndMap(SenderRule)
+	rs.Underride = data.Underride.SetType(UnderrideRule)
+	return
+}
+
+// MarshalJSON is the reverse of UnmarshalJSON()
+func (rs *PushRuleset) MarshalJSON() ([]byte, error) {
+	data := rawPushRuleset{
+		Override:  rs.Override,
+		Content:   rs.Content,
+		Room:      rs.Room.Unmap(),
+		Sender:    rs.Sender.Unmap(),
+		Underride: rs.Underride,
+	}
+	return json.Marshal(&data)
+}
+
+// DefaultPushActions is the value returned if none of the rule
+// collections in a Ruleset match the event given to GetActions()
+var DefaultPushActions = PushActionArray{&PushAction{Action: ActionDontNotify}}
+
+// GetActions matches the given event against all of the push rule
+// collections in this push ruleset in the order of priority as
+// specified in spec section 11.12.1.4.
+func (rs *PushRuleset) GetActions(room Room, evt *event.Event) (match PushActionArray) {
+	// Add push rule collections to array in priority order
+	arrays := []PushRuleCollection{rs.Override, rs.Content, rs.Room, rs.Sender, rs.Underride}
+	// Loop until one of the push rule collections matches the room/event combo.
+	for _, pra := range arrays {
+		if pra == nil {
+			continue
+		}
+		if match = pra.GetActions(room, evt); match != nil {
+			// Match found, return it.
+			return
+		}
+	}
+	// No match found, return default actions.
+	return DefaultPushActions
+}