karti
35a0b2b715
- 27 base tools: channels, messaging, users, reactions, files, DMs - Team management: invite/remove users, get stats, list members - Slash commands: execute /remind, /poll, etc. - Webhook management: incoming and outgoing webhooks - System tools: server config, logs, bulk status updates - Channel admin: create, invite, leave, delete channels - Read-only mode for safe exploration - Dual token support (bot + PAT) for enhanced security - Apache 2.0 licensed
370 lines
10 KiB
Go
370 lines
10 KiB
Go
package messaging
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import (
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"context"
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"fmt"
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"strings"
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"github.com/karti-ai/mattermost-mcp-server/pkg/log"
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"github.com/karti-ai/mattermost-mcp-server/pkg/mattermost"
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"github.com/karti-ai/mattermost-mcp-server/pkg/params"
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"github.com/karti-ai/mattermost-mcp-server/pkg/to"
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"github.com/karti-ai/mattermost-mcp-server/pkg/tool"
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"github.com/mark3labs/mcp-go/mcp"
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"github.com/mark3labs/mcp-go/server"
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"github.com/mattermost/mattermost-server/v6/model"
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)
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var Tool = tool.New()
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const (
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SendMessageToolName = "mattermost_send_message"
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EditMessageToolName = "mattermost_edit_message"
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DeleteMessageToolName = "mattermost_delete_message"
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BulkDeleteMessagesToolName = "mattermost_bulk_delete_messages"
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PinPostToolName = "mattermost_pin_post"
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UnpinPostToolName = "mattermost_unpin_post"
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GetPinnedPostsToolName = "mattermost_get_pinned_posts"
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GetPostToolName = "mattermost_get_post"
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)
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var (
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SendMessageTool = mcp.NewTool(
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SendMessageToolName,
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mcp.WithDescription("Send a message to a Mattermost channel"),
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mcp.WithString("channel_id", mcp.Required(), mcp.Description("Channel ID to send the message to")),
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mcp.WithString("message", mcp.Required(), mcp.Description("Message content to send")),
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mcp.WithString("thread_id", mcp.Description("Thread ID for replies (optional). If provided, message will be posted as a reply in the thread")),
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)
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EditMessageTool = mcp.NewTool(
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EditMessageToolName,
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mcp.WithDescription("Edit an existing message in Mattermost"),
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mcp.WithString("post_id", mcp.Required(), mcp.Description("Post ID of the message to edit")),
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mcp.WithString("message", mcp.Required(), mcp.Description("New message content")),
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)
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DeleteMessageTool = mcp.NewTool(
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DeleteMessageToolName,
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mcp.WithDescription("Delete a message from Mattermost"),
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mcp.WithString("post_id", mcp.Required(), mcp.Description("Post ID of the message to delete")),
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)
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BulkDeleteMessagesTool = mcp.NewTool(
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BulkDeleteMessagesToolName,
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mcp.WithDescription("Delete multiple messages at once (up to 100)"),
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mcp.WithString("post_ids", mcp.Required(), mcp.Description("Comma-separated list of post IDs to delete (max 100)")),
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)
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PinPostTool = mcp.NewTool(
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PinPostToolName,
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mcp.WithDescription("Pin a post to a channel"),
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mcp.WithString("post_id", mcp.Required(), mcp.Description("Post ID to pin")),
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)
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UnpinPostTool = mcp.NewTool(
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UnpinPostToolName,
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mcp.WithDescription("Unpin a post from a channel"),
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mcp.WithString("post_id", mcp.Required(), mcp.Description("Post ID to unpin")),
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)
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GetPinnedPostsTool = mcp.NewTool(
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GetPinnedPostsToolName,
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mcp.WithDescription("Get all pinned posts in a channel"),
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mcp.WithString("channel_id", mcp.Required(), mcp.Description("Channel ID to get pinned posts from")),
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)
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GetPostTool = mcp.NewTool(
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GetPostToolName,
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mcp.WithDescription("Get a single post by its ID"),
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mcp.WithString("post_id", mcp.Required(), mcp.Description("Post ID to retrieve")),
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)
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)
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func init() {
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registerTools()
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}
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func registerTools() {
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tools := []server.ServerTool{
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{Tool: SendMessageTool, Handler: SendMessageFn},
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{Tool: EditMessageTool, Handler: EditMessageFn},
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{Tool: DeleteMessageTool, Handler: DeleteMessageFn},
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{Tool: BulkDeleteMessagesTool, Handler: BulkDeleteMessagesFn},
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{Tool: PinPostTool, Handler: PinPostFn},
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{Tool: UnpinPostTool, Handler: UnpinPostFn},
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{Tool: GetPinnedPostsTool, Handler: GetPinnedPostsFn},
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{Tool: GetPostTool, Handler: GetPostFn},
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}
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for _, t := range tools {
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if t.Tool.Name == GetPinnedPostsToolName || t.Tool.Name == GetPostToolName {
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Tool.RegisterRead(t)
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} else {
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Tool.RegisterWrite(t)
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}
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}
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}
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func SendMessageFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
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log.Debugf("[Messaging] Called SendMessageFn")
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args := req.GetArguments()
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channelId, err := params.GetString(args, "channel_id")
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if err != nil {
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return to.Error(fmt.Errorf("[channel_id] %v", err)), nil
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}
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message, err := params.GetString(args, "message")
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if err != nil {
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return to.Error(fmt.Errorf("[message] %v", err)), nil
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}
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threadId := params.GetOptionalString(args, "thread_id", "")
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client := mattermost.GetGlobalClient()
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if client == nil {
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return to.Error(fmt.Errorf("[internal] client not initialized")), nil
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}
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post := &model.Post{
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ChannelId: channelId,
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Message: message,
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}
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if threadId != "" {
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post.RootId = threadId
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}
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result, err := client.CreatePost(ctx, post)
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if err != nil {
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return to.Error(fmt.Errorf("[post] failed to send message: %v", err)), nil
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}
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return to.Result(SlimPost(result)), nil
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}
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func EditMessageFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
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log.Debugf("[Messaging] Called EditMessageFn")
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args := req.GetArguments()
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postId, err := params.GetString(args, "post_id")
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if err != nil {
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return to.Error(fmt.Errorf("[post_id] %v", err)), nil
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}
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message, err := params.GetString(args, "message")
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if err != nil {
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return to.Error(fmt.Errorf("[message] %v", err)), nil
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}
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client := mattermost.GetGlobalClient()
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if client == nil {
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return to.Error(fmt.Errorf("[internal] client not initialized")), nil
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}
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post := &model.Post{
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Message: message,
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}
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result, err := client.UpdatePost(ctx, postId, post)
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if err != nil {
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return to.Error(fmt.Errorf("[post] failed to edit message: %v", err)), nil
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}
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return to.Result(SlimPost(result)), nil
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}
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func DeleteMessageFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
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log.Debugf("[Messaging] Called DeleteMessageFn")
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args := req.GetArguments()
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postId, err := params.GetString(args, "post_id")
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if err != nil {
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return to.Error(fmt.Errorf("[post_id] %v", err)), nil
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}
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client := mattermost.GetGlobalClient()
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if client == nil {
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return to.Error(fmt.Errorf("[internal] client not initialized")), nil
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}
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err = client.DeletePost(ctx, postId)
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if err != nil {
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return to.Error(fmt.Errorf("[post] failed to delete message: %v", err)), nil
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}
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return to.Result(map[string]interface{}{
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"success": true,
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"post_id": postId,
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"message": "Message deleted successfully",
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}), nil
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}
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func BulkDeleteMessagesFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
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log.Debugf("[Messaging] Called BulkDeleteMessagesFn")
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args := req.GetArguments()
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postIDsStr, err := params.GetString(args, "post_ids")
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if err != nil {
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return to.Error(fmt.Errorf("[post_ids] %v", err)), nil
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}
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postIDs := strings.Split(postIDsStr, ",")
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if len(postIDs) > 100 {
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return to.Error(fmt.Errorf("[post_ids] too many post IDs (max 100, got %d)", len(postIDs))), nil
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}
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for i, id := range postIDs {
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postIDs[i] = strings.TrimSpace(id)
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}
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client := mattermost.GetGlobalClient()
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if client == nil {
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return to.Error(fmt.Errorf("[internal] client not initialized")), nil
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}
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deleted := 0
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failed := 0
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var failedIDs []string
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var lastError string
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for _, postID := range postIDs {
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err := client.DeletePost(ctx, postID)
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if err != nil {
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failed++
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failedIDs = append(failedIDs, postID)
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lastError = err.Error()
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} else {
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deleted++
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}
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}
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result := map[string]interface{}{
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"total": len(postIDs),
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"deleted": deleted,
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"failed": failed,
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"successful": deleted == len(postIDs),
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}
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if failed > 0 {
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result["failed_ids"] = failedIDs
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result["last_error"] = lastError
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return to.Result(result), nil
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}
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return to.Result(result), nil
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}
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func PinPostFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
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log.Debugf("[Messaging] Called PinPostFn")
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args := req.GetArguments()
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postId, err := params.GetString(args, "post_id")
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if err != nil {
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return to.Error(fmt.Errorf("[post_id] %v", err)), nil
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}
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client := mattermost.GetGlobalClient()
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if client == nil {
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return to.Error(fmt.Errorf("[internal] client not initialized")), nil
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}
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err = client.PinPost(ctx, postId)
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if err != nil {
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return to.Error(fmt.Errorf("[post] failed to pin: %v", err)), nil
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}
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return to.Result(map[string]interface{}{
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"success": true,
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"post_id": postId,
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"message": "Post pinned successfully",
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}), nil
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}
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func UnpinPostFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
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log.Debugf("[Messaging] Called UnpinPostFn")
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args := req.GetArguments()
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postId, err := params.GetString(args, "post_id")
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if err != nil {
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return to.Error(fmt.Errorf("[post_id] %v", err)), nil
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}
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client := mattermost.GetGlobalClient()
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if client == nil {
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return to.Error(fmt.Errorf("[internal] client not initialized")), nil
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}
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err = client.UnpinPost(ctx, postId)
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if err != nil {
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return to.Error(fmt.Errorf("[post] failed to unpin: %v", err)), nil
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}
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return to.Result(map[string]interface{}{
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"success": true,
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"post_id": postId,
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"message": "Post unpinned successfully",
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}), nil
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}
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func GetPinnedPostsFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
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log.Debugf("[Messaging] Called GetPinnedPostsFn")
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args := req.GetArguments()
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channelId, err := params.GetString(args, "channel_id")
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if err != nil {
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return to.Error(fmt.Errorf("[channel_id] %v", err)), nil
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}
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client := mattermost.GetGlobalClient()
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if client == nil {
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return to.Error(fmt.Errorf("[internal] client not initialized")), nil
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}
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posts, err := client.GetPinnedPosts(ctx, channelId)
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if err != nil {
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return to.Error(fmt.Errorf("[channel] failed to get pinned posts: %v", err)), nil
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}
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results := make([]map[string]interface{}, 0, len(posts.Posts))
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for _, post := range posts.Posts {
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results = append(results, SlimPost(post))
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}
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return to.Result(map[string]interface{}{
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"posts": results,
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"count": len(results),
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"channel_id": channelId,
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}), nil
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}
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func GetPostFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
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log.Debugf("[Messaging] Called GetPostFn")
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args := req.GetArguments()
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postId, err := params.GetString(args, "post_id")
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if err != nil {
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return to.Error(fmt.Errorf("[post_id] %v", err)), nil
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}
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client := mattermost.GetGlobalClient()
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if client == nil {
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return to.Error(fmt.Errorf("[internal] client not initialized")), nil
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}
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post, err := client.GetPost(ctx, postId)
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if err != nil {
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return to.Error(fmt.Errorf("[post] failed to get: %v", err)), nil
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}
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return to.Result(SlimPost(post)), nil
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}
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