moonstream/nodes/node_balancer/cmd/middleware.go

43 wiersze
1.0 KiB
Go

/*
Server API middlewares.
*/
package cmd
import (
"log"
"net"
"net/http"
humbug "github.com/bugout-dev/humbug/go/pkg"
)
// Handle panic errors to prevent server shutdown
func panicMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
defer func() {
if err := recover(); err != nil {
log.Println("recovered", err)
report := humbug.PanicReport(err)
reporter.Publish(report)
http.Error(w, "Internal server error", 500)
}
}()
// There will be a defer with panic handler in each next function
next.ServeHTTP(w, r)
})
}
// Log access requests in proper format
func logMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
next.ServeHTTP(w, r)
ip, _, err := net.SplitHostPort(r.RemoteAddr)
if err != nil {
log.Printf("Unable to parse client IP: %s\n", r.RemoteAddr)
} else {
log.Printf("%s %s %s %s\n", ip, r.Method, r.URL.Path, r.Header.Get("X-Origin-Path"))
}
})
}