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-rw-r--r--service/http/handler.go208
1 files changed, 0 insertions, 208 deletions
diff --git a/service/http/handler.go b/service/http/handler.go
deleted file mode 100644
index eca05483..00000000
--- a/service/http/handler.go
+++ /dev/null
@@ -1,208 +0,0 @@
-package http
-
-import (
- "fmt"
- "net"
- "net/http"
- "strconv"
- "strings"
- "sync"
- "time"
-
- "github.com/pkg/errors"
- "github.com/sirupsen/logrus"
- "github.com/spiral/roadrunner"
-)
-
-const (
- // EventResponse thrown after the request been processed. See ErrorEvent as payload.
- EventResponse = iota + 500
-
- // EventError thrown on any non job error provided by road runner server.
- EventError
-)
-
-// ErrorEvent represents singular http error event.
-type ErrorEvent struct {
- // Request contains client request, must not be stored.
- Request *http.Request
-
- // Error - associated error, if any.
- Error error
-
- // event timings
- start time.Time
- elapsed time.Duration
-}
-
-// Elapsed returns duration of the invocation.
-func (e *ErrorEvent) Elapsed() time.Duration {
- return e.elapsed
-}
-
-// ResponseEvent represents singular http response event.
-type ResponseEvent struct {
- // Request contains client request, must not be stored.
- Request *Request
-
- // Response contains service response.
- Response *Response
-
- // event timings
- start time.Time
- elapsed time.Duration
-}
-
-// Elapsed returns duration of the invocation.
-func (e *ResponseEvent) Elapsed() time.Duration {
- return e.elapsed
-}
-
-// Handler 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 Handler struct {
- cfg *Config
- log *logrus.Logger
- rr *roadrunner.Server
- mul sync.Mutex
- lsn func(event int, ctx interface{})
-}
-
-// Listen attaches handler event controller.
-func (h *Handler) Listen(l func(event int, ctx interface{})) {
- h.mul.Lock()
- defer h.mul.Unlock()
-
- h.lsn = l
-}
-
-// mdwr serve using PSR-7 requests passed to underlying application. Attempts to serve static files first if enabled.
-func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
- start := time.Now()
-
- // validating request size
- if h.cfg.MaxRequestSize != 0 {
- if length := r.Header.Get("content-length"); length != "" {
- if size, err := strconv.ParseInt(length, 10, 64); err != nil {
- h.handleError(w, r, err, start)
- return
- } else if size > h.cfg.MaxRequestSize*1024*1024 {
- h.handleError(w, r, errors.New("request body max size is exceeded"), start)
- return
- }
- }
- }
-
- req, err := NewRequest(r, h.cfg.Uploads)
- if err != nil {
- h.handleError(w, r, err, start)
- return
- }
-
- // proxy IP resolution
- h.resolveIP(req)
-
- req.Open(h.log)
- defer req.Close(h.log)
-
- p, err := req.Payload()
- if err != nil {
- h.handleError(w, r, err, start)
- return
- }
-
- rsp, err := h.rr.Exec(p)
- if err != nil {
- h.handleError(w, r, err, start)
- return
- }
-
- resp, err := NewResponse(rsp)
- if err != nil {
- h.handleError(w, r, err, start)
- return
- }
-
- h.handleResponse(req, resp, start)
- err = resp.Write(w)
- if err != nil {
- h.handleError(w, r, err, start)
- }
-}
-
-// handleError sends error.
-func (h *Handler) handleError(w http.ResponseWriter, r *http.Request, err error, start time.Time) {
- // if pipe is broken, there is no sense to write the header
- // in this case we just report about error
- if err == errEPIPE {
- h.throw(EventError, &ErrorEvent{Request: r, Error: err, start: start, elapsed: time.Since(start)})
- return
- }
- // ResponseWriter is ok, write the error code
- w.WriteHeader(500)
- _, err2 := w.Write([]byte(err.Error()))
- // error during the writing to the ResponseWriter
- if err2 != nil {
- // concat original error with ResponseWriter error
- h.throw(EventError, &ErrorEvent{Request: r, Error: errors.New(fmt.Sprintf("error: %v, during handle this error, ResponseWriter error occurred: %v", err, err2)), start: start, elapsed: time.Since(start)})
- return
- }
- h.throw(EventError, &ErrorEvent{Request: r, Error: err, start: start, elapsed: time.Since(start)})
-}
-
-// handleResponse triggers response event.
-func (h *Handler) handleResponse(req *Request, resp *Response, start time.Time) {
- h.throw(EventResponse, &ResponseEvent{Request: req, Response: resp, start: start, elapsed: time.Since(start)})
-}
-
-// throw invokes event handler if any.
-func (h *Handler) throw(event int, ctx interface{}) {
- h.mul.Lock()
- defer h.mul.Unlock()
-
- if h.lsn != nil {
- h.lsn(event, ctx)
- }
-}
-
-// get real ip passing multiple proxy
-func (h *Handler) resolveIP(r *Request) {
- if !h.cfg.IsTrusted(r.RemoteAddr) {
- return
- }
-
- if r.Header.Get("X-Forwarded-For") != "" {
- ips := strings.Split(r.Header.Get("X-Forwarded-For"), ",")
- ipCount := len(ips)
-
- for i := ipCount - 1; i >= 0; i-- {
- addr := strings.TrimSpace(ips[i])
- if net.ParseIP(addr) != nil {
- r.RemoteAddr = addr
- return
- }
- }
-
- return
- }
-
- // The logic here is the following:
- // In general case, we only expect X-Real-Ip header. If it exist, we get the IP addres from header and set request Remote address
- // But, if there is no X-Real-Ip header, we also trying to check CloudFlare headers
- // True-Client-IP is a general CF header in which copied information from X-Real-Ip in CF.
- // CF-Connecting-IP is an Enterprise feature and we check it last in order.
- // This operations are near O(1) because Headers struct are the map type -> type MIMEHeader map[string][]string
- if r.Header.Get("X-Real-Ip") != "" {
- r.RemoteAddr = fetchIP(r.Header.Get("X-Real-Ip"))
- return
- }
-
- if r.Header.Get("True-Client-IP") != "" {
- r.RemoteAddr = fetchIP(r.Header.Get("True-Client-IP"))
- return
- }
-
- if r.Header.Get("CF-Connecting-IP") != "" {
- r.RemoteAddr = fetchIP(r.Header.Get("CF-Connecting-IP"))
- }
-}