disallow personal accounts by default, add refresh

Author: Thomas Stromberg

cmd/server/main.go

@@ -148,7 +148,7 @@ func run(ctx context.Context, cancel context.CancelFunc, cfg *config.ServerConfi
 	configManager := config.New(ctx)
 
 	// Initialize GitHub installation manager.
-	githubManager, err := github.NewManager(ctx, cfg.GitHubAppID, cfg.GitHubPrivateKey)
+	githubManager, err := github.NewManager(ctx, cfg.GitHubAppID, cfg.GitHubPrivateKey, cfg.AllowPersonalAccounts)
 	if err != nil {
 		slog.Error("failed to initialize GitHub installation manager", "error", err)
 		cancel() // Ensure cleanup happens before exit
@@ -856,18 +856,23 @@ func loadConfig() (*config.ServerConfig, error) {
 
 	slog.Info("loading configuration values")
 
+	// Parse personal accounts flag (default: false for DoS protection)
+	allowPersonalAccounts := os.Getenv("ALLOW_PERSONAL_ACCOUNTS") == "true"
+
 	cfg := &config.ServerConfig{
-		DataDir:            dataDir,
-		SlackSigningSecret: getSecretValue("SLACK_SIGNING_SECRET"),
-		GitHubAppID:        os.Getenv("GITHUB_APP_ID"), // Not a secret, just config
-		GitHubPrivateKey:   githubPrivateKey,
-		SprinklerURL:       sprinklerURL,
+		DataDir:               dataDir,
+		SlackSigningSecret:    getSecretValue("SLACK_SIGNING_SECRET"),
+		GitHubAppID:           os.Getenv("GITHUB_APP_ID"), // Not a secret, just config
+		GitHubPrivateKey:      githubPrivateKey,
+		SprinklerURL:          sprinklerURL,
+		AllowPersonalAccounts: allowPersonalAccounts,
 	}
 
 	slog.Info("configuration loaded",
 		"has_slack_signing_secret", cfg.SlackSigningSecret != "",
 		"has_github_app_id", cfg.GitHubAppID != "",
-		"has_github_private_key", cfg.GitHubPrivateKey != "")
+		"has_github_private_key", cfg.GitHubPrivateKey != "",
+		"allow_personal_accounts", cfg.AllowPersonalAccounts)
 
 	// Validate required fields
 	if cfg.SlackSigningSecret == "" {

internal/config/config.go

@@ -28,11 +28,12 @@ const (
 
 // ServerConfig holds the server configuration from environment variables.
 type ServerConfig struct {
-	DataDir            string
-	SlackSigningSecret string
-	GitHubAppID        string
-	GitHubPrivateKey   string
-	SprinklerURL       string
+	DataDir               string
+	SlackSigningSecret    string
+	GitHubAppID           string
+	GitHubPrivateKey      string
+	SprinklerURL          string
+	AllowPersonalAccounts bool // Allow processing GitHub personal accounts (default: false for DoS protection)
 }
 
 // RepoConfig represents the slack.yaml configuration for a GitHub org.

internal/github/github.go

@@ -635,14 +635,15 @@ func (c *Client) InstallationToken(ctx context.Context) string {
 
 // Manager manages multiple GitHub App installations.
 type Manager struct {
-	privateKey *rsa.PrivateKey
-	clients    map[string]*Client // org -> client
-	appID      string
-	mu         sync.RWMutex
+	privateKey            *rsa.PrivateKey
+	clients               map[string]*Client // org -> client
+	appID                 string
+	allowPersonalAccounts bool // Allow processing personal accounts (default: false for DoS protection)
+	mu                    sync.RWMutex
 }
 
 // NewManager creates a new installation manager.
-func NewManager(ctx context.Context, appID, privateKeyPEM string) (*Manager, error) {
+func NewManager(ctx context.Context, appID, privateKeyPEM string, allowPersonalAccounts bool) (*Manager, error) {
 	// Parse the private key.
 	block, _ := pem.Decode([]byte(privateKeyPEM))
 	if block == nil {
@@ -669,9 +670,10 @@ func NewManager(ctx context.Context, appID, privateKeyPEM string) (*Manager, err
 	}
 
 	m := &Manager{
-		clients:    make(map[string]*Client),
-		appID:      appID,
-		privateKey: key,
+		clients:               make(map[string]*Client),
+		appID:                 appID,
+		privateKey:            key,
+		allowPersonalAccounts: allowPersonalAccounts,
 	}
 
 	// Discover installations at startup.
@@ -754,6 +756,14 @@ func (m *Manager) RefreshInstallations(ctx context.Context) error {
 			continue
 		}
 
+		// Skip personal accounts if not explicitly allowed (DoS protection)
+		if !m.allowPersonalAccounts && inst.Account.GetType() == "User" {
+			slog.Debug("skipping personal account",
+				"account", inst.Account.GetLogin(),
+				"type", "User")
+			continue
+		}
+
 		org := inst.Account.GetLogin()
 
 		// Create client for this installation.

internal/slack/home_handler.go

@@ -95,6 +95,9 @@ func (h *HomeHandler) HandleAppHomeOpened(ctx context.Context, teamID, slackUser
 		return h.publishPlaceholderHome(slackClient, slackUserID)
 	}
 
+	// Add workspace orgs to dashboard for UI display
+	dashboard.WorkspaceOrgs = workspaceOrgs
+
 	// Build Block Kit UI - use first org as primary
 	blocks := home.BuildBlocks(dashboard, workspaceOrgs[0])
 

internal/slack/slack.go

@@ -799,6 +799,7 @@ func (c *Client) EventsHandler(writer http.ResponseWriter, r *http.Request) {
 			c.homeViewHandlerMu.RUnlock()
 
 			if handler != nil {
+				//nolint:contextcheck // Use detached context for async event processing - prevents webhook events from being lost during shutdown
 				go func(teamID, userID string) {
 					homeCtx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 					defer cancel()
@@ -858,7 +859,8 @@ func (c *Client) InteractionsHandler(writer http.ResponseWriter, r *http.Request
 	switch interaction.Type {
 	case slack.InteractionTypeBlockActions:
 		// Handle block actions (buttons, selects, etc.).
-		slog.Debug("received block action", "interaction", interaction)
+		//nolint:contextcheck // handleBlockAction spawns async goroutines with detached contexts - this is intentional
+		c.handleBlockAction(&interaction)
 	case slack.InteractionTypeViewSubmission:
 		// Handle modal submissions.
 		slog.Debug("received view submission", "interaction", interaction)
@@ -870,6 +872,51 @@ func (c *Client) InteractionsHandler(writer http.ResponseWriter, r *http.Request
 	writer.WriteHeader(http.StatusOK)
 }
 
+// handleBlockAction handles block action interactions (button clicks, etc.).
+func (c *Client) handleBlockAction(interaction *slack.InteractionCallback) {
+	// Process each action in the callback
+	for _, action := range interaction.ActionCallback.BlockActions {
+		slog.Debug("processing block action",
+			"action_id", action.ActionID,
+			"user", interaction.User.ID,
+			"team", interaction.Team.ID)
+
+		switch action.ActionID {
+		case "refresh_dashboard":
+			// Trigger home view refresh
+			c.homeViewHandlerMu.RLock()
+			handler := c.homeViewHandler
+			c.homeViewHandlerMu.RUnlock()
+
+			if handler != nil {
+				// Refresh asynchronously to avoid blocking the response
+				//nolint:contextcheck // Use detached context for async button refresh - ensures operation completes even if parent context is cancelled
+				go func(teamID, userID string) {
+					ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+					defer cancel()
+
+					slog.Info("refreshing dashboard via button click",
+						"team_id", teamID,
+						"user", userID)
+
+					if err := handler(ctx, teamID, userID); err != nil {
+						slog.Error("failed to refresh dashboard",
+							"team_id", teamID,
+							"user", userID,
+							"error", err)
+					}
+				}(interaction.Team.ID, interaction.User.ID)
+			} else {
+				slog.Warn("refresh requested but no home view handler registered",
+					"user", interaction.User.ID)
+			}
+
+		default:
+			slog.Debug("unhandled action_id", "action_id", action.ActionID)
+		}
+	}
+}
+
 // SlashCommandHandler handles Slack slash commands.
 func (c *Client) SlashCommandHandler(writer http.ResponseWriter, r *http.Request) {
 	// Verify the request signature.

pkg/home/ui.go

@@ -20,6 +20,35 @@ func BuildBlocks(dashboard *Dashboard, primaryOrg string) []slack.Block {
 		),
 	)
 
+	// Organization monitoring section - show which orgs this workspace tracks
+	if len(dashboard.WorkspaceOrgs) > 0 {
+		var orgLinks []string
+		for _, org := range dashboard.WorkspaceOrgs {
+			configURL := fmt.Sprintf("https://github.com/%s/.codeGROOVE/blob/main/slack.yaml", org)
+			orgLinks = append(orgLinks, fmt.Sprintf("<%s|%s>", configURL, org))
+		}
+		orgsText := fmt.Sprintf("*Monitoring:* %s", strings.Join(orgLinks, " • "))
+
+		blocks = append(blocks,
+			slack.NewContextBlock(
+				"",
+				slack.NewTextBlockObject("mrkdwn", orgsText, false, false),
+			),
+		)
+	}
+
+	// Refresh button
+	blocks = append(blocks,
+		slack.NewActionBlock(
+			"refresh_actions",
+			slack.NewButtonBlockElement(
+				"refresh_dashboard",
+				"refresh",
+				slack.NewTextBlockObject("plain_text", "🔄 Refresh", false, false),
+			),
+		),
+	)
+
 	counts := dashboard.Counts()
 
 	// Incoming section - matches dashboard's card-based sections