Mercurial > gemma
view pkg/middleware/json.go @ 3624:3012d0b3badc
Allow same values for depth_reference in SR as in gauges
The depth_reference in a sounding result references a depth_reference
of the bottlenecks reference gauge. Therefor the same values must be
accepted, which means the restriction to four chars is no good.
In the real world this might be something as "LDC2010", which is
obviously longer.
author | Sascha Wilde <wilde@intevation.de> |
---|---|
date | Wed, 05 Jun 2019 18:50:54 +0200 |
parents | ef59a4255670 |
children | 6f9d00c8cc38 |
line wrap: on
line source
// This is Free Software under GNU Affero General Public License v >= 3.0 // without warranty, see README.md and license for details. // // SPDX-License-Identifier: AGPL-3.0-or-later // License-Filename: LICENSES/AGPL-3.0.txt // // Copyright (C) 2019 by via donau // – Österreichische Wasserstraßen-Gesellschaft mbH // Software engineering by Intevation GmbH // // Author(s): // * Sascha L. Teichmann <sascha.teichmann@intevation.de> package middleware import ( "context" "encoding/json" "io" "net/http" ) type jsonInputKeyType int const jsonInputKey jsonInputKeyType = 0 const DefaultLimit = 2048 func GetJSONInput(req *http.Request) interface{} { return req.Context().Value(jsonInputKey) } func JSONInput(next http.Handler, input func(*http.Request) interface{}, limit int64) http.Handler { return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) { dst := input(req) defer req.Body.Close() var r io.Reader switch { case limit == 0: r = io.LimitReader(req.Body, DefaultLimit) case limit > 0: r = io.LimitReader(req.Body, limit) default: r = req.Body } if err := json.NewDecoder(r).Decode(dst); err != nil { http.Error(rw, "error: "+err.Error(), http.StatusBadRequest) return } parent := req.Context() ctx := context.WithValue(parent, jsonInputKey, input) req = req.WithContext(ctx) next.ServeHTTP(rw, req) }) }