Files
git-velocity/internal/server/server.go
T
2025-12-11 09:45:49 +00:00

96 lines
2.5 KiB
Go

package server
import (
"fmt"
"net/http"
"os"
"path/filepath"
"time"
)
// Server is a simple HTTP server for previewing the generated site
type Server struct {
directory string
port string
}
// New creates a new preview server
func New(directory, port string) *Server {
return &Server{
directory: directory,
port: port,
}
}
// Start starts the HTTP server
func (s *Server) Start() error {
handler, err := s.CreateHandler()
if err != nil {
return err
}
srv := &http.Server{
Addr: s.GetAddress(),
Handler: handler,
ReadTimeout: 15 * time.Second,
ReadHeaderTimeout: 15 * time.Second,
WriteTimeout: 15 * time.Second,
IdleTimeout: 60 * time.Second,
}
return srv.ListenAndServe()
}
// loggingMiddleware logs incoming requests
func (s *Server) loggingMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
fmt.Printf("%s %s\n", r.Method, r.URL.Path)
next.ServeHTTP(w, r)
})
}
// cacheMiddleware adds cache headers for static assets
func (s *Server) cacheMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// Disable caching for development
w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
w.Header().Set("Pragma", "no-cache")
w.Header().Set("Expires", "0")
// Add CORS headers for local development
w.Header().Set("Access-Control-Allow-Origin", "*")
next.ServeHTTP(w, r)
})
}
// CreateHandler creates and returns the HTTP handler without starting the server.
// This is useful for testing and for embedding the server in other applications.
func (s *Server) CreateHandler() (http.Handler, error) {
// Check if directory exists
if _, err := os.Stat(s.directory); os.IsNotExist(err) {
return nil, fmt.Errorf("directory does not exist: %s", s.directory)
}
// Get absolute path
absPath, err := filepath.Abs(s.directory)
if err != nil {
return nil, fmt.Errorf("failed to get absolute path: %w", err)
}
// Create file server with directory listing disabled for security
fs := http.FileServer(http.Dir(absPath))
// Wrap with middleware
return s.loggingMiddleware(s.cacheMiddleware(fs)), nil
}
// GetAddress returns the server address in the format :port
func (s *Server) GetAddress() string {
return fmt.Sprintf(":%s", s.port)
}
// GetDirectory returns the directory being served
func (s *Server) GetDirectory() string {
return s.directory
}