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package http
import (
"errors"
"github.com/sirupsen/logrus"
"github.com/spiral/roadrunner"
"net/http"
"strconv"
)
// service serves http connections to underlying PHP application using PSR-7 protocol. Context will include request headers,
// parsed files and query, payload will include parsed form dataTree (if any).
type Server struct {
cfg *Config
static *staticServer
rr *roadrunner.Server
}
// NewServer returns new instance of HTTP PSR7 server.
func NewServer(cfg *Config, server *roadrunner.Server) *Server {
h := &Server{cfg: cfg, rr: server}
if cfg.ServeStatic {
h.static = &staticServer{root: http.Dir(h.cfg.Root)}
}
return h
}
// ServeHTTP serve using PSR-7 requests passed to underlying application. Attempts to serve static files first if enabled.
func (srv *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
if srv.cfg.ServeStatic && srv.static.serve(w, r) {
return
}
// validating request size
if srv.cfg.MaxRequest != 0 {
if length := r.Header.Get("content-length"); length != "" {
if size, err := strconv.ParseInt(length, 10, 64); err != nil {
srv.sendError(w, r, err)
return
} else if size > srv.cfg.MaxRequest {
srv.sendError(w, r, errors.New("request body max size is exceeded"))
return
}
}
}
req, err := NewRequest(r)
if err != nil {
srv.sendError(w, r, err)
return
}
if err = req.Open(srv.cfg); err != nil {
srv.sendError(w, r, err)
return
}
defer req.Close()
p, err := req.Payload()
if err != nil {
srv.sendError(w, r, err)
return
}
rsp, err := srv.rr.Exec(p)
if err != nil {
srv.sendError(w, r, err)
return
}
resp, err := NewResponse(rsp)
if err != nil {
srv.sendError(w, r, err)
return
}
resp.Write(w)
}
// sendError sends error
func (srv *Server) sendError(w http.ResponseWriter, r *http.Request, err error) {
logrus.Errorf("http: %s", err)
w.WriteHeader(500)
w.Write([]byte(err.Error()))
}
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