mirror of
https://github.com/lukaszraczylo/mcp-readitall.git
synced 2026-10-13 00:48:39 +00:00
131 lines
3.1 KiB
Go
131 lines
3.1 KiB
Go
package server
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import (
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"context"
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"fmt"
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"log"
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"net/http"
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"sync"
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"time"
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"github.com/lukaszraczylo/mcp-readitall/internal/browser"
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"github.com/lukaszraczylo/mcp-readitall/internal/reader"
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"github.com/lukaszraczylo/mcp-readitall/internal/tools"
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"github.com/modelcontextprotocol/go-sdk/mcp"
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)
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// Server wires the MCP server, browser lifecycle, session store, and reader
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// together, and exposes the tool surface to MCP clients.
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type Server struct {
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mcp *mcp.Server
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br *browser.Browser
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sess *browser.SessionStore
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readr *reader.Reader
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log *log.Logger
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closeOnce sync.Once
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closeErr error
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}
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const (
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serverName = "mcp-readitall"
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serverVersion = "0.1.0"
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)
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// New constructs the MCP server, initialises the browser manager and the
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// session store, and registers every tool. It does not start serving: call
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// RunHTTP for that.
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func New(ctx context.Context, logger *log.Logger) (*Server, error) {
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if logger == nil {
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logger = log.Default()
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}
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sess, err := browser.NewSessionStore()
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if err != nil {
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return nil, fmt.Errorf("session store: %w", err)
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}
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br, err := browser.New(ctx, logger)
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if err != nil {
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_ = sess.Close()
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return nil, fmt.Errorf("browser: %w", err)
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}
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readr := reader.New(br, sess, logger)
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mcpServer := mcp.NewServer(
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&mcp.Implementation{Name: serverName, Version: serverVersion},
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nil,
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)
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s := &Server{
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mcp: mcpServer,
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br: br,
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sess: sess,
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readr: readr,
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log: logger,
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}
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tools.RegisterRead(mcpServer, readr)
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tools.RegisterLogin(mcpServer, br, sess, logger)
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tools.RegisterListSessions(mcpServer, sess)
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tools.RegisterClearSession(mcpServer, sess)
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tools.RegisterExtract(mcpServer, readr)
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return s, nil
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}
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// RunHTTP blocks and serves MCP over HTTP until ctx is cancelled. It exposes
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// the streamable HTTP transport at /mcp, the legacy SSE transport at /sse,
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// and a liveness probe at /healthz.
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func (s *Server) RunHTTP(ctx context.Context, addr string) error {
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getServer := func(*http.Request) *mcp.Server { return s.mcp }
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mux := http.NewServeMux()
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mux.Handle("/mcp", mcp.NewStreamableHTTPHandler(getServer, nil))
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mux.Handle("/sse", mcp.NewSSEHandler(getServer, nil))
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mux.HandleFunc("/healthz", func(w http.ResponseWriter, _ *http.Request) {
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w.WriteHeader(http.StatusOK)
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_, _ = w.Write([]byte("ok"))
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})
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httpSrv := &http.Server{
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Addr: addr,
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Handler: mux,
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ReadHeaderTimeout: 10 * time.Second,
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}
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errCh := make(chan error, 1)
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go func() { errCh <- httpSrv.ListenAndServe() }()
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select {
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case <-ctx.Done():
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shutdownCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer cancel()
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return httpSrv.Shutdown(shutdownCtx)
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case err := <-errCh:
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return err
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}
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}
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// Close releases the browser and the session store. Safe to call multiple times.
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func (s *Server) Close() error {
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s.closeOnce.Do(func() {
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var firstErr error
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if s.br != nil {
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if err := s.br.Close(); err != nil {
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firstErr = err
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s.log.Printf("browser close: %v", err)
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}
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}
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if s.sess != nil {
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if err := s.sess.Close(); err != nil && firstErr == nil {
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firstErr = err
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s.log.Printf("session store close: %v", err)
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}
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}
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s.closeErr = firstErr
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})
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return s.closeErr
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}
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