feat: add conversation system action messages

docs/IM-前后端对接文档.md

@@ -314,6 +314,38 @@ X-MeetingIM-APIKey: <预置的普通 API Key>
 | @所有人 | `{"pub":{"id":"pub-all-1","topic":"grp...","head":{"mime":"application/json","x-im-schema":1,"x-im-type":"text","x-im-client-mid":"mid_all_1","mention_all":true},"content":{"text":"@所有人 开会"}}}` | 无权限时 `{"ctrl":{"id":"pub-all-1","code":403,"text":"permission denied","params":{"reason":"MENTION_ALL_FORBIDDEN"}}}` |
 | 重复 `client_mid` 重试 | 与第一次发送完全相同，复用 `x-im-client-mid:"mid_1"` | 目标行为：返回第一次成功的同一 `seq`；不得落两条消息 |
 
+##### 0.5.4.3.1 会话内系统提示和可点击动作消息
+
+截图中的灰色提示、入群邀请说明、好友已添加提示等属于会话内系统消息，必须进入对应 P2P 或群 Topic 的消息流，占用 `seq`，参与历史拉取、重连补偿和多端同步。它们不是 `info` 实时业务事件，也不是系统通知列表记录；`info` 只负责触发刷新，真正需要在聊天窗口长期展示的内容必须以 `{data}` 下发并入库。
+
+客户端不得主动发送 `system_notice`、`system_action`；这两类消息只能由服务端受控身份生成。服务端下发时 `data.from` 可以为空，客户端以 `head.x-im-from="system"` 判断系统身份，不依赖真实用户头像。客户端收到未知 `template` 或未知 `action.type` 时，展示 `content.text`，忽略不可识别动作，不允许执行任意 URL、脚本或非白名单路由。
+
+| 类型 | 适用场景 | 服务端下行示例 | 客户端渲染 |
+| --- | --- | --- | --- |
+| `system_notice` | “你已添加了安妮，现在可以开始聊天了”、撤回提示、群名修改、成员进出群等纯提示 | `{"data":{"topic":"p2p...","seq":19,"from":"","head":{"x-im-schema":1,"x-im-type":"system_notice","x-im-template":"friend_added","x-im-from":"system"},"content":{"text":"你已添加了安妮，现在可以开始聊天了。","level":"normal","template":"friend_added","actors":[{"user_id":"usr_anne","name":"安妮"}],"actions":[]}}}` | 居中灰色提示；不显示发送人头像；如 `actors.click` 为空则不可点 |
+| `system_action` | 群邀请确认说明、审批入口、群设置入口、可点击人名或群名提示 | `{"data":{"topic":"grp...","seq":20,"from":"","head":{"x-im-schema":1,"x-im-type":"system_action","x-im-template":"group_invite_confirm_enabled","x-im-from":"system"},"content":{"text":"安妮邀请栗子来了加入了群聊","template":"group_invite_confirm_enabled","actors":[{"user_id":"usr_anne","name":"安妮","click":{"type":"user_profile","target_id":"usr_anne"}},{"user_id":"usr_lizi","name":"栗子来了","click":{"type":"user_profile","target_id":"usr_lizi"}}],"actions":[{"type":"open_group_invite_settings","label":"群聊邀请确认","target_id":"grp..."}]}}}` | 居中灰色或业务提示样式；可点击片段按 `actors.click` 高亮；按钮或文字入口按 `actions` 渲染 |
+
+`content` 字段约定：
+
+| 字段 | 类型 | 必填 | 说明 |
+| --- | --- | --- | --- |
+| `text` | string | 是 | 降级展示文案；客户端可直接展示，也可按 `template` 重新排版 |
+| `template` | string | 是 | 服务端稳定模板编码，例如 `friend_added`、`group_member_joined`、`group_invite_confirm_enabled` |
+| `level` | string | 否 | `normal`、`warning`、`danger`，影响颜色和强调程度 |
+| `actors` | array | 否 | 文案中的用户、群、文件等实体；支持局部高亮和点击 |
+| `actions` | array | 否 | 当前消息可触发的操作入口；只允许客户端白名单动作 |
+| `extra` | object | 否 | 模板扩展参数；客户端不得依赖未知字段完成关键流程 |
+
+`actors[].click` 和 `actions[]` 的 `type` 首版白名单：
+
+| 类型 | 参数 | 行为 |
+| --- | --- | --- |
+| `user_profile` | `target_id` | 打开用户资料页 |
+| `group_profile` | `target_id` | 打开群资料页 |
+| `open_group_invite_settings` | `target_id` | 打开群邀请确认设置 |
+| `open_group_join_requests` | `target_id` | 打开群入群审批列表 |
+| `open_message` | `topic,seq` | 定位到指定消息 |
+
 ##### 0.5.4.4 回执、正在输入、删除和清空记录
 
 | 场景 | 客户端发送 | 服务端返回/下行示例 |
@@ -453,7 +485,7 @@ X-MeetingIM-APIKey: <预置的普通 API Key>
 
 `x-im-client-mid` 由客户端生成 ULID/UUID，作用域为“租户 + 发送人”，断线重试必须复用；服务端目标实现应返回第一次写入的同一 `seq`。未知 `x-im-type` 显示“暂不支持的消息”，不得崩溃或删除消息。
 
-消息类型首版固定为：`text`、`image`、`video`、`voice`、`file`、`contact_card`、`link`、`forward_bundle`、`call`、`system_event`。自定义表情启用后追加 `sticker`。媒体内容只保存 `file_id`、文件元数据和缩略图 ID，不保存可长期绕过鉴权的公共 URL。
+消息类型首版固定为：`text`、`image`、`video`、`voice`、`file`、`contact_card`、`link`、`forward_bundle`、`call`、`system_notice`、`system_action`、`system_event`。自定义表情启用后追加 `sticker`。媒体内容只保存 `file_id`、文件元数据和缩略图 ID，不保存可长期绕过鉴权的公共 URL。`system_notice` 和 `system_action` 只能由服务端生成，普通用户构造后发送必须被服务端拒绝。
 
 ### 0.7 HTTP 幂等、重试和安全
 

server/db/mysql/tenant_adapter.go

@@ -8635,8 +8635,9 @@ func (a *adapter) TenantFriendshipList(id t.TenantID, uid t.Uid, queryText, init
 	if limit <= 0 || limit > 100 {
 		limit = 50
 	}
-	where := []string{"fs.user_id=?", "fs.status=?"}
+	uidID := decodeUID(uid)
-	args := []any{decodeUID(uid), t.RelationshipFriend}
+	where := []string{"fs.user_id=?", "fs.status=?", "fs.peer_id<>?"}
+	args := []any{uidID, t.RelationshipFriend, uidID}
 	if cursor != "" {
 		parsed, err := strconv.ParseInt(cursor, 10, 64)
 		if err != nil || parsed <= 0 {

server/im_http.go

@@ -551,6 +551,18 @@ type imGroupMuteBatchRequest struct {
 	Reason string `json:"reason,omitempty"`
 }
 
+type imSystemMessageActor struct {
+	UserID string         `json:"user_id,omitempty"`
+	Name   string         `json:"name,omitempty"`
+	Click  map[string]any `json:"click,omitempty"`
+}
+
+type imSystemMessageAction struct {
+	Type     string `json:"type"`
+	Label    string `json:"label,omitempty"`
+	TargetID string `json:"target_id,omitempty"`
+}
+
 func serveIMTenantResolve(wrt http.ResponseWriter, req *http.Request) {
 	if req.Method != http.MethodPost {
 		writeIMError(wrt, req, http.StatusMethodNotAllowed, 30002, imReasonMethodNotAllowed, "method not allowed", nil)
@@ -4169,6 +4181,9 @@ func serveIMFriends(wrt http.ResponseWriter, req *http.Request) {
 	}
 	payload := make([]map[string]any, 0, len(items))
 	for _, item := range items {
+		if item.Friendship.PeerID == principal.Uid {
+			continue
+		}
 		payload = append(payload, friendListItemPayload(item))
 	}
 	writeIMSuccess(wrt, req, map[string]any{"items": payload, "next_cursor": nextCursor})
@@ -4934,6 +4949,16 @@ func serveIMGroupInvitationResource(wrt http.ResponseWriter, req *http.Request)
 		writeIMRelationError(wrt, req, err)
 		return
 	}
+	if imReliableHTTPEventsEnabled(req) {
+		publishIMConversationSystemNotice(principal.TenantID, inv.Topic,
+			"system_action", "group_member_joined", "有成员通过邀请加入了群聊。",
+			[]imSystemMessageActor{
+				{UserID: inv.InviterUserID.UserId(), Click: map[string]any{"type": "user_profile", "target_id": inv.InviterUserID.UserId()}},
+				{UserID: inv.TargetUserID.UserId(), Click: map[string]any{"type": "user_profile", "target_id": inv.TargetUserID.UserId()}},
+			},
+			[]imSystemMessageAction{{Type: "group_profile", Label: "查看群聊", TargetID: inv.Topic}},
+			map[string]any{"invitation_id": inv.InvitationID, "source": "invitation"})
+	}
 	dispatchIMGroupEvents(principal.TenantID)
 	writeIMSuccess(wrt, req, groupInvitationPayload(inv))
 }
@@ -5048,6 +5073,16 @@ func serveIMGroupJoinRequestAction(wrt http.ResponseWriter, req *http.Request, t
 		writeIMRelationError(wrt, req, err)
 		return
 	}
+	if updated.Status == types.GroupJoinRequestStatusAccepted && imReliableHTTPEventsEnabled(req) {
+		publishIMConversationSystemNotice(principal.TenantID, topic,
+			"system_action", "group_member_joined", "有成员通过审批加入了群聊。",
+			[]imSystemMessageActor{
+				{UserID: updated.ApplicantUserID.UserId(), Click: map[string]any{"type": "user_profile", "target_id": updated.ApplicantUserID.UserId()}},
+				{UserID: principal.Uid.UserId(), Click: map[string]any{"type": "user_profile", "target_id": principal.Uid.UserId()}},
+			},
+			[]imSystemMessageAction{{Type: "group_profile", Label: "查看群聊", TargetID: topic}},
+			map[string]any{"request_id": updated.RequestID, "source": "approval"})
+	}
 	dispatchIMGroupEvents(principal.TenantID)
 	writeIMSuccess(wrt, req, groupJoinRequestPayload(updated))
 }
@@ -5176,6 +5211,21 @@ func serveIMGroupGovernance(wrt http.ResponseWriter, req *http.Request, topic st
 			writeIMRelationError(wrt, req, err)
 			return
 		}
+		if body.JoinApproval != nil && imReliableHTTPEventsEnabled(req) {
+			template := "group_invite_confirm_disabled"
+			text := "群聊邀请确认已关闭，成员邀请好友可直接进群。"
+			if *body.JoinApproval {
+				template = "group_invite_confirm_enabled"
+				text = "群聊邀请确认已启用，群成员邀请好友进群需要群主或管理员确认。"
+			}
+			publishIMConversationSystemNotice(principal.TenantID, topic,
+				"system_action", template, text,
+				[]imSystemMessageActor{
+					{UserID: principal.Uid.UserId(), Click: map[string]any{"type": "user_profile", "target_id": principal.Uid.UserId()}},
+				},
+				[]imSystemMessageAction{{Type: "open_group_invite_settings", Label: "群聊邀请确认", TargetID: topic}},
+				map[string]any{"join_approval": *body.JoinApproval, "version": settings.Version})
+		}
 		dispatchIMGroupEvents(principal.TenantID)
 		writeIMSuccess(wrt, req, groupGovernancePayloadFromSettings(settings, selfSub))
 	default:
@@ -5794,6 +5844,14 @@ func serveIMFriendRequestAction(wrt http.ResponseWriter, req *http.Request) {
 		writeIMRelationError(wrt, req, err)
 		return
 	}
+	if status == types.FriendRequestAccepted && imReliableHTTPEventsEnabled(req) {
+		publishIMConversationSystemNotice(principal.TenantID, updated.ApplicantID.P2PName(updated.TargetID),
+			"system_notice", "friend_added", "你们已成为好友，现在可以开始聊天了。",
+			[]imSystemMessageActor{
+				{UserID: updated.ApplicantID.UserId(), Click: map[string]any{"type": "user_profile", "target_id": updated.ApplicantID.UserId()}},
+				{UserID: updated.TargetID.UserId(), Click: map[string]any{"type": "user_profile", "target_id": updated.TargetID.UserId()}},
+			}, nil, map[string]any{"request_id": updated.RequestID})
+	}
 	dispatchIMBusinessEvents(principal.TenantID)
 	if imReliableHTTPEventsEnabled(req) {
 		eventType := "friend.request." + status
@@ -9248,6 +9306,64 @@ func requireIMTopicReadable(tenantID types.TenantID, uid types.Uid, topic string
 	return nil
 }
 
+func publishIMConversationSystemNotice(tenantID types.TenantID, topic, msgType, template, text string, actors []imSystemMessageActor, actions []imSystemMessageAction, extra map[string]any) {
+	if tenantID == types.ZeroTenantID || strings.TrimSpace(topic) == "" || store.Store == nil || !store.Store.IsOpen() || store.Topics == nil || store.Messages == nil {
+		return
+	}
+	msgType = strings.TrimSpace(msgType)
+	if msgType == "" {
+		msgType = "system_notice"
+	}
+	if msgType != "system_notice" && msgType != "system_action" {
+		logs.Warn.Printf("im system message: unsupported type %q for topic %s", msgType, topic)
+		return
+	}
+	template = strings.TrimSpace(template)
+	text = strings.TrimSpace(text)
+	if template == "" || text == "" {
+		return
+	}
+	topicRecord, err := store.Topics.Get(tenantID, topic)
+	if err != nil || topicRecord == nil {
+		if err != nil {
+			logs.Warn.Printf("im system message: failed to load topic %s: %v", topic, err)
+		}
+		return
+	}
+	content := map[string]any{
+		"text":     text,
+		"template": template,
+		"level":    "normal",
+	}
+	if len(actors) > 0 {
+		content["actors"] = actors
+	}
+	if len(actions) > 0 {
+		content["actions"] = actions
+	}
+	if len(extra) > 0 {
+		content["extra"] = extra
+	}
+	now := time.Now().UTC().Round(time.Millisecond)
+	_, err = store.Messages.Save(tenantID, &types.Message{
+		ObjHeader: types.ObjHeader{CreatedAt: now, UpdatedAt: now},
+		TenantID:  tenantID,
+		SeqId:     topicRecord.SeqId + 1,
+		Topic:     topic,
+		From:      types.ZeroUid.String(),
+		Head: types.KVMap{
+			"x-im-schema":   1,
+			"x-im-type":     msgType,
+			"x-im-template": template,
+			"x-im-from":     "system",
+		},
+		Content: content,
+	}, nil, false)
+	if err != nil && !errors.Is(err, types.ErrDuplicate) {
+		logs.Warn.Printf("im system message: failed to save %s for topic %s: %v", template, topic, err)
+	}
+}
+
 func systemNotificationIDFromPath(path string) string {
 	const marker = "/v1/im/system-notifications/"
 	idx := strings.Index(path, marker)

server/im_http_test.go

@@ -5172,6 +5172,15 @@ func TestServeIMFriendsList(t *testing.T) {
 	now := time.Now().UTC().Round(time.Millisecond)
 	peer := types.Uid(2)
 	relations := &testRelationsStore{friends: []types.FriendListItem{{
+		Friendship: types.Friendship{
+			TenantID: 7,
+			UserID:   1,
+			PeerID:   1,
+			Status:   types.RelationshipFriend,
+			Topic:    types.Uid(1).P2PName(types.Uid(1)),
+		},
+		Peer: &types.User{ObjHeader: types.ObjHeader{Id: types.Uid(1).String()}, TenantID: 7, Public: map[string]any{"display_name": "Self"}},
+	}, {
 		Friendship: types.Friendship{
 			TenantID:  7,
 			UserID:    1,

server/store/store.go

@@ -3570,7 +3570,7 @@ func validIMMessageHeaderToken(value string, max int) bool {
 func validIMMessageType(value string) bool {
 	switch strings.TrimSpace(value) {
 	case "text", "image", "file", "audio", "voice", "video", "location", "contact", "contact_card",
-		"card", "link", "forward_bundle", "sticker", "call", "system", "system_event":
+		"card", "link", "forward_bundle", "sticker", "call", "system", "system_notice", "system_action", "system_event":
 		return true
 	default:
 		return false

server/store/tenant_store_test.go

@@ -19,6 +19,8 @@ func TestValidateMessageHeadersProductContract(t *testing.T) {
 		{"x-im-schema": json.Number("1"), "x-im-type": "voice"},
 		{"x-im-schema": "1", "x-im-type": "contact_card"},
 		{"x-im-schema": 1, "type": "audio", "x-im-type": "voice"},
+		{"x-im-schema": 1, "x-im-type": "system_notice"},
+		{"x-im-schema": 1, "x-im-type": "system_action"},
 		{"type": "system"},
 	}
 	for _, head := range valid {

server/topic.go

@@ -1060,8 +1060,7 @@ func (t *Topic) saveAndBroadcastMessage(msg *ClientComMessage, asUid types.Uid,
 	if msg.sess != nil && msg.sess.authLvl != auth.LevelRoot {
 		legacyType, _ := head["type"].(string)
 		productType, _ := head["x-im-type"].(string)
-		if legacyType == "system" || legacyType == "system_event" ||
+		if isSystemGeneratedMessageType(legacyType) || isSystemGeneratedMessageType(productType) {
-			productType == "system" || productType == "system_event" {
 			msg.sess.queueOut(ErrPermissionDenied(msg.Id, t.original(asUid), msg.Timestamp))
 			return types.ErrPermissionDenied
 		}
@@ -1190,6 +1189,15 @@ func (t *Topic) saveAndBroadcastMessage(msg *ClientComMessage, asUid types.Uid,
 	return nil
 }
 
+func isSystemGeneratedMessageType(value string) bool {
+	switch strings.TrimSpace(value) {
+	case "system", "system_notice", "system_action", "system_event":
+		return true
+	default:
+		return false
+	}
+}
+
 // handlePubBroadcast fans out {pub} -> {data} messages to recipients in a master topic.
 // This is a NON-proxy broadcast.
 func (t *Topic) handlePubBroadcast(msg *ClientComMessage) {

server/topic_test.go

@@ -789,6 +789,8 @@ func TestHandleBroadcastDataDuplicateClientMessage(t *testing.T) {
 }
 
 func TestHandleBroadcastDataRejectsUserSystemType(t *testing.T) {
+	for _, msgType := range []string{"system_event", "system_notice", "system_action"} {
+		t.Run(msgType, func(t *testing.T) {
 			numUsers := 2
 			helper := TopicTestHelper{}
 			helper.setUp(t, numUsers, types.TopicCatP2P, "p2p-test", true)
@@ -800,7 +802,7 @@ func TestHandleBroadcastDataRejectsUserSystemType(t *testing.T) {
 				AsUser: from,
 				Pub: &MsgClientPub{
 					Topic:   "p2p",
-			Head:    map[string]any{"x-im-schema": float64(1), "x-im-type": "system_event"},
+					Head:    map[string]any{"x-im-schema": float64(1), "x-im-type": msgType},
 					Content: "test",
 				},
 				sess: helper.sessions[0],
@@ -828,6 +830,8 @@ func TestHandleBroadcastDataRejectsUserSystemType(t *testing.T) {
 			if len(helper.hubMessages) != 0 {
 				t.Errorf("Hubhelper.route did not expect any messages, however %d received.", len(helper.hubMessages))
 			}
+		})
+	}
 }
 
 func TestHandleBroadcastDataRejectsMentionAllByMember(t *testing.T) {