InfluxDB now works in proxy mode, influxdb username and password is added in the backend and never exposed to frontend, #8

pkg/api/dataproxy.go

@@ -0,0 +1,53 @@
+package api
+
+import (
+	"net/http"
+	"net/http/httputil"
+	"net/url"
+
+	"github.com/torkelo/grafana-pro/pkg/bus"
+	"github.com/torkelo/grafana-pro/pkg/middleware"
+	m "github.com/torkelo/grafana-pro/pkg/models"
+	"github.com/torkelo/grafana-pro/pkg/utils"
+)
+
+func NewReverseProxy(ds *m.DataSource, proxyPath string) *httputil.ReverseProxy {
+	target, _ := url.Parse(ds.Url)
+
+	director := func(req *http.Request) {
+		req.URL.Scheme = target.Scheme
+		req.URL.Host = target.Host
+
+		reqQueryVals := req.URL.Query()
+
+		if ds.Type == m.DS_INFLUXDB {
+			req.URL.Path = utils.JoinUrlFragments(target.Path, "db/"+ds.Database+"/"+proxyPath)
+			reqQueryVals.Add("u", ds.User)
+			reqQueryVals.Add("p", ds.Password)
+			req.URL.RawQuery = reqQueryVals.Encode()
+		} else {
+			req.URL.Path = utils.JoinUrlFragments(target.Path, proxyPath)
+		}
+	}
+
+	return &httputil.ReverseProxy{Director: director}
+}
+
+// TODO: need to cache datasources
+func ProxyDataSourceRequest(c *middleware.Context) {
+	id := c.ParamsInt64(":id")
+
+	query := m.GetDataSourceByIdQuery{
+		Id:        id,
+		AccountId: c.GetAccountId(),
+	}
+
+	err := bus.Dispatch(&query)
+	if err != nil {
+		c.JsonApiErr(500, "Unable to load datasource meta data", err)
+	}
+
+	proxyPath := c.Params("*")
+	proxy := NewReverseProxy(&query.Result, proxyPath)
+	proxy.ServeHTTP(c.RW(), c.Req.Request)
+}