# HG changeset patch
# User Sascha L. Teichmann <sascha.teichmann@intevation.de>
# Date 1556199103 -7200
# Node ID 19fc84a984797bbeb32dae6bb766078e04cf4926
# Parent  247e78ba2bf7bed4af0b73df7b510f59bf7c08b7
Added "published-config" field to configuration.

It's a path to a published JSON file (after login) to give additional parameters to the client.
Reached by GET /api/system/config
Currently the field "osm-url" is used by the client to determine the URL of the OSM server for
the background layer.

diff -r 247e78ba2bf7 -r 19fc84a98479 client/src/components/map/Map.vue
--- a/client/src/components/map/Map.vue	Thu Apr 25 13:11:41 2019 +0200
+++ b/client/src/components/map/Map.vue	Thu Apr 25 15:31:43 2019 +0200
@@ -219,13 +219,13 @@
   },
   mounted() {
     // ToDo set path to correct endpoint in order to retrieve an OSM URL
-    HTTP.get("/users", {
+    HTTP.get("/system/config", {
       headers: { "X-Gemma-Auth": localStorage.getItem("token") }
     })
       .then(response => {
         const { url } = response.data;
         const config = {};
-        if (url) config["url"] = url;
+        if (url) config["osm-url"] = url;
         this.layers.config.unshift(
           new TileLayer({
             id: "OPENSTREETMAP",
diff -r 247e78ba2bf7 -r 19fc84a98479 pkg/config/config.go
--- a/pkg/config/config.go	Thu Apr 25 13:11:41 2019 +0200
+++ b/pkg/config/config.go	Thu Apr 25 15:31:43 2019 +0200
@@ -106,6 +106,10 @@
 // If left empty the system default for temporary files is used.
 func TmpDir() string { return viper.GetString("tmp-dir") }
 
+// PublishedConfig is a name of a JSON file where extra configuration is stored
+// to be served to to the web client.
+func PublishedConfig() string { return viper.GetString("published-config") }
+
 var (
 	proxyKeyOnce       sync.Once
 	proxyKey           []byte
@@ -267,6 +271,8 @@
 		"Defaults to system temp directory.")
 
 	str("schema-dirs", ".", "Directories to find XSD schema files in (recursive).")
+
+	str("published-config", "", "path to a config file served to client.")
 }
 
 var (
diff -r 247e78ba2bf7 -r 19fc84a98479 pkg/controllers/routes.go
--- a/pkg/controllers/routes.go	Thu Apr 25 13:11:41 2019 +0200
+++ b/pkg/controllers/routes.go	Thu Apr 25 15:31:43 2019 +0200
@@ -74,6 +74,11 @@
 	})).Methods(http.MethodGet)
 
 	// System Settings
+	api.Handle("/system/config", any(&JSONHandler{
+		Handle: getSystemConfig,
+		NoConn: true,
+	})).Methods(http.MethodGet)
+
 	api.Handle("/system/style/{feature}/{attr}", any(&JSONHandler{
 		Handle: getFeatureStyle,
 	})).Methods(http.MethodGet)
diff -r 247e78ba2bf7 -r 19fc84a98479 pkg/controllers/system.go
--- a/pkg/controllers/system.go	Thu Apr 25 13:11:41 2019 +0200
+++ b/pkg/controllers/system.go	Thu Apr 25 15:31:43 2019 +0200
@@ -14,12 +14,14 @@
 package controllers
 
 import (
+	"bytes"
 	"database/sql"
 	"fmt"
 	"io/ioutil"
 	"net/http"
 	"strings"
 
+	"gemma.intevation.de/gemma/pkg/config"
 	"gemma.intevation.de/gemma/pkg/models"
 	"github.com/gorilla/mux"
 )
@@ -78,6 +80,29 @@
 	return
 }
 
+func getSystemConfig(
+	_ interface{}, req *http.Request,
+	_ *sql.Conn,
+) (jr JSONResult, err error) {
+
+	cfg := config.PublishedConfig()
+	if cfg == "" {
+		err = JSONError{
+			Code:    http.StatusNotFound,
+			Message: "No published configuration found.",
+		}
+		return
+	}
+
+	var data []byte
+	if data, err = ioutil.ReadFile(cfg); err != nil {
+		return
+	}
+
+	jr = JSONResult{Result: bytes.NewReader(data)}
+	return
+}
+
 // Map/Feature style end points
 
 func getFeatureStyle(