1 files changed, 86 insertions, 0 deletions
diff --git a/internal/eventutil/eventcontent.go b/internal/eventutil/eventcontent.go
new file mode 100644
index 00000000..873e20a8
--- /dev/null
+++ b/internal/eventutil/eventcontent.go
@@ -0,0 +1,86 @@
+// Copyright 2020 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package eventutil
+
+import "github.com/matrix-org/gomatrixserverlib"
+
+// NameContent is the event content for https://matrix.org/docs/spec/client_server/r0.2.0.html#m-room-name
+type NameContent struct {
+	Name string `json:"name"`
+}
+
+// TopicContent is the event content for https://matrix.org/docs/spec/client_server/r0.2.0.html#m-room-topic
+type TopicContent struct {
+	Topic string `json:"topic"`
+}
+
+// GuestAccessContent is the event content for https://matrix.org/docs/spec/client_server/r0.2.0.html#m-room-guest-access
+type GuestAccessContent struct {
+	GuestAccess string `json:"guest_access"`
+}
+
+// HistoryVisibilityContent is the event content for http://matrix.org/docs/spec/client_server/r0.2.0.html#m-room-history-visibility
+type HistoryVisibilityContent struct {
+	HistoryVisibility string `json:"history_visibility"`
+}
+
+// CanonicalAlias is the event content for https://matrix.org/docs/spec/client_server/r0.6.0#m-room-canonical-alias
+type CanonicalAlias struct {
+	Alias string `json:"alias"`
+}
+
+// InitialPowerLevelsContent returns the initial values for m.room.power_levels on room creation
+// if they have not been specified.
+// http://matrix.org/docs/spec/client_server/r0.2.0.html#m-room-power-levels
+// https://github.com/matrix-org/synapse/blob/v0.19.2/synapse/handlers/room.py#L294
+func InitialPowerLevelsContent(roomCreator string) (c gomatrixserverlib.PowerLevelContent) {
+	c.Defaults()
+	c.Events = map[string]int64{
+		"m.room.name":               50,
+		"m.room.power_levels":       100,
+		"m.room.history_visibility": 100,
+		"m.room.canonical_alias":    50,
+		"m.room.avatar":             50,
+		"m.room.aliases":            0, // anyone can publish aliases by default. Has to be 0 else state_default is used.
+	}
+	c.Users = map[string]int64{roomCreator: 100}
+	return c
+}
+
+// AliasesContent is the event content for http://matrix.org/docs/spec/client_server/r0.2.0.html#m-room-aliases
+type AliasesContent struct {
+	Aliases []string `json:"aliases"`
+}
+
+// CanonicalAliasContent is the event content for http://matrix.org/docs/spec/client_server/r0.2.0.html#m-room-canonical-alias
+type CanonicalAliasContent struct {
+	Alias string `json:"alias"`
+}
+
+// AvatarContent is the event content for http://matrix.org/docs/spec/client_server/r0.2.0.html#m-room-avatar
+type AvatarContent struct {
+	Info          ImageInfo `json:"info,omitempty"`
+	URL           string    `json:"url"`
+	ThumbnailURL  string    `json:"thumbnail_url,omitempty"`
+	ThumbnailInfo ImageInfo `json:"thumbnail_info,omitempty"`
+}
+
+// ImageInfo implements the ImageInfo structure from http://matrix.org/docs/spec/client_server/r0.2.0.html#m-room-avatar
+type ImageInfo struct {
+	Mimetype string `json:"mimetype"`
+	Height   int64  `json:"h"`
+	Width    int64  `json:"w"`
+	Size     int64  `json:"size"`
+}