Some data server handlers

Co-authored-by: Hector Hurtado <hector.hurtado@bbva.com>

internal/server/data/resource.go

@@ -0,0 +1,60 @@
+package data
+
+import (
+	"io"
+	"net/http"
+
+	"github.com/BBVA/kapow/internal/server/model"
+	"github.com/gorilla/mux"
+)
+
+func getRequestBody(w http.ResponseWriter, r *http.Request, h *model.Handler) {
+	w.Header().Add("Content-Type", "application/octet-stream")
+	n, err := io.Copy(w, h.Request.Body)
+	if err != nil {
+		if n == 0 {
+			w.WriteHeader(http.StatusInternalServerError)
+		} else {
+			// Only way to abort current connection as of go 1.13
+			// https://github.com/golang/go/issues/16542
+			panic("Truncated body")
+		}
+	}
+}
+
+func getRequestMethod(w http.ResponseWriter, r *http.Request, h *model.Handler) {
+	w.Header().Add("Content-Type", "application/octet-stream")
+	w.Write([]byte(h.Request.Method))
+}
+
+func getRequestHost(w http.ResponseWriter, r *http.Request, h *model.Handler) {
+	w.Header().Add("Content-Type", "application/octet-stream")
+	w.Write([]byte(h.Request.Host))
+}
+
+func getRequestPath(w http.ResponseWriter, r *http.Request, h *model.Handler) {
+	w.Header().Add("Content-Type", "application/octet-stream")
+	// TODO: Discuss a how to obtain URL.EscapedPath() instead
+	w.Write([]byte(h.Request.URL.Path))
+}
+
+func getRequestMatches(w http.ResponseWriter, r *http.Request, h *model.Handler) {
+	w.Header().Add("Content-Type", "application/octet-stream")
+	name := mux.Vars(r)["name"]
+	vars := mux.Vars(h.Request)
+	if value, ok := vars[name]; ok {
+		w.Write([]byte(value))
+	} else {
+		w.WriteHeader(http.StatusNotFound)
+	}
+}
+
+func getRequestParams(w http.ResponseWriter, r *http.Request, h *model.Handler) {
+	w.Header().Add("Content-Type", "application/octet-stream")
+	name := mux.Vars(r)["name"]
+	if value, ok := h.Request.URL.Query()[name]; ok {
+		w.Write([]byte(value[0]))
+	} else {
+		w.WriteHeader(http.StatusNotFound)
+	}
+}