Example #1
0
// LogRequest creates a request logger middleware.
// This middleware is aware of the RequestID middleware and if registered after it leverages the
// request ID for logging.
// If verbose is true then the middlware logs the request and response bodies.
func LogRequest(verbose bool) goa.Middleware {
	return func(h goa.Handler) goa.Handler {
		return func(ctx context.Context, rw http.ResponseWriter, req *http.Request) error {
			reqID := ctx.Value(reqIDKey)
			if reqID == nil {
				reqID = shortID()
			}
			ctx = goa.WithLogContext(ctx, "req_id", reqID)
			startedAt := time.Now()
			r := goa.ContextRequest(ctx)
			goa.LogInfo(ctx, "started", r.Method, r.URL.String(), "from", from(req),
				"ctrl", goa.ContextController(ctx), "action", goa.ContextAction(ctx))
			if verbose {
				if len(r.Params) > 0 {
					logCtx := make([]interface{}, 2*len(r.Params))
					i := 0
					for k, v := range r.Params {
						logCtx[i] = k
						logCtx[i+1] = interface{}(strings.Join(v, ", "))
						i = i + 2
					}
					goa.LogInfo(ctx, "params", logCtx...)
				}
				if r.ContentLength > 0 {
					if mp, ok := r.Payload.(map[string]interface{}); ok {
						logCtx := make([]interface{}, 2*len(mp))
						i := 0
						for k, v := range mp {
							logCtx[i] = k
							logCtx[i+1] = interface{}(v)
							i = i + 2
						}
						goa.LogInfo(ctx, "payload", logCtx...)
					} else {
						// Not the most efficient but this is used for debugging
						js, err := json.Marshal(r.Payload)
						if err != nil {
							js = []byte("<invalid JSON>")
						}
						goa.LogInfo(ctx, "payload", "raw", string(js))
					}
				}
			}
			err := h(ctx, rw, req)
			resp := goa.ContextResponse(ctx)
			if code := resp.ErrorCode; code != "" {
				goa.LogInfo(ctx, "completed", "status", resp.Status, "error", code,
					"bytes", resp.Length, "time", time.Since(startedAt).String())
			} else {
				goa.LogInfo(ctx, "completed", "status", resp.Status,
					"bytes", resp.Length, "time", time.Since(startedAt).String())
			}
			return err
		}
	}
}
Example #2
0
// Run downloads files with given paths.
func (cmd *DownloadCommand) Run(c *client.Client, args []string) error {
	var (
		fnf func(context.Context, string) (int64, error)
		fnd func(context.Context, string, string) (int64, error)

		rpath   = args[0]
		outfile = cmd.OutFile
		logger  = goa.NewLogger(log.New(os.Stderr, "", log.LstdFlags))
		ctx     = goa.WithLogger(context.Background(), logger)
		err     error
	)

	if rpath[0] != '/' {
		rpath = "/" + rpath
	}
	if rpath == "/swagger.json" {
		fnf = c.DownloadSwaggerJSON
		if outfile == "" {
			outfile = "swagger.json"
		}
		goto found
	}
	if strings.HasPrefix(rpath, "/swagger-ui/") {
		fnd = c.DownloadSwaggerUI
		rpath = rpath[12:]
		if outfile == "" {
			_, outfile = path.Split(rpath)
		}
		goto found
	}
	return fmt.Errorf("don't know how to download %s", rpath)
found:
	ctx = goa.WithLogContext(ctx, "file", outfile)
	if fnf != nil {
		_, err = fnf(ctx, outfile)
	} else {
		_, err = fnd(ctx, rpath, outfile)
	}
	if err != nil {
		goa.LogError(ctx, "failed", "err", err)
		return err
	}

	return nil
}
Example #3
0
// handleSpecOrigin applies the CORS response headers corresponding to the origin.
func handleSpecOrigin(h goa.Handler) goa.Handler {

	return func(ctx context.Context, rw http.ResponseWriter, req *http.Request) error {
		origin := req.Header.Get("Origin")
		if origin == "" {
			// Not a CORS request
			return h(ctx, rw, req)
		}
		if cors.MatchOrigin(origin, "*") {
			ctx = goa.WithLogContext(ctx, "origin", origin)
			rw.Header().Set("Access-Control-Allow-Origin", origin)
			rw.Header().Set("Access-Control-Allow-Credentials", "false")
			if acrm := req.Header.Get("Access-Control-Request-Method"); acrm != "" {
				// We are handling a preflight request
				rw.Header().Set("Access-Control-Allow-Methods", "GET")
			}
			return h(ctx, rw, req)
		}

		return h(ctx, rw, req)
	}
}