Restructure all http related files

Moving all http related functions and helpers into a new http submodule

http/chain.go

@@ -0,0 +1,16 @@
+package http
+
+import (
+	"net/http"
+	"slices"
+)
+
+type HandlerBuilder func(http.Handler) http.Handler
+
+func ChainMiddlewares(base http.Handler, links ...HandlerBuilder) http.Handler {
+	slices.Reverse(links)
+	for _, f := range links {
+		base = f(base)
+	}
+	return base
+}

http/context.go

@@ -0,0 +1,19 @@
+package http
+
+import (
+	"context"
+	"net/http"
+)
+
+func ContextValsMiddleware(pairs map[any]any) HandlerBuilder {
+	return func(h http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			ctx := r.Context()
+			for key, val := range pairs {
+				ctx = context.WithValue(ctx, key, val)
+			}
+			newRequest := r.WithContext(ctx)
+			h.ServeHTTP(w, newRequest)
+		})
+	}
+}

http/httpErr.go

@@ -0,0 +1,16 @@
+package http
+
+import (
+	"fmt"
+	"net/http"
+)
+
+// Return an error over an http connection.
+// The error will have the given return code `code`
+// and a json encoded body with the field "id" set to `errId`
+// and a field "message" set to the `message`
+func HttpErr(w http.ResponseWriter, errId int, message string, code int) {
+	w.WriteHeader(code)
+	w.Header().Add("Content-Type", "application/json")
+	fmt.Fprintf(w, "{\"id\": %d, \"message\": \"%s\"}", errId, message)
+}

http/zerolog.go

@@ -0,0 +1,32 @@
+package http
+
+import (
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/rs/zerolog/hlog"
+	"github.com/rs/zerolog/log"
+)
+
+func LoggingMiddleware(handler http.Handler) http.Handler {
+	return ChainMiddlewares(handler,
+		hlog.NewHandler(log.Logger),
+		hlog.AccessHandler(func(r *http.Request, status, size int, duration time.Duration) {
+			if strings.HasPrefix(r.URL.Path, "/assets") {
+				return
+			}
+			hlog.FromRequest(r).Info().
+				Str("method", r.Method).
+				Stringer("url", r.URL).
+				Int("status", status).
+				Int("size", size).
+				Dur("duration", duration).
+				Send()
+		}),
+		hlog.RemoteAddrHandler("ip"),
+		hlog.UserAgentHandler("user_agent"),
+		hlog.RefererHandler("referer"),
+		hlog.RequestIDHandler("req_id", "Request-Id"),
+	)
+}