Repair ES queries when rest.action.multi.allow_explicit_index: false

When rest.action.multi.allow_explicit_index is set to false, Kibana 4
queries fail with ElasticsearchIllegalArgumentException[explicit index
in multi get is not allowed]
This workaround fixes that.

public/index.js

@@ -39518,31 +39518,36 @@ define('components/courier/fetch/strategy/search',['require','lodash','angular']
 
     return {
       clientMethod: 'msearch',
-
+ 
       /**
        * Flatten a series of requests into as ES request body
        *
        * @param  {array} requests - the requests to serialize
        * @return {string} - the request body
        */
       reqsFetchParamsToBody: function (reqsFetchParams) {
-        return reqsFetchParams.map(function (fetchParams) {
+      	var indices = _.union(reqsFetchParams.map(function (fetchParams) {
           var indexList = fetchParams.index;
-
+ 
           if (_.isFunction(_.deepGet(indexList, 'toIndexList'))) {
             var timeBounds = timefilter.getBounds();
             indexList = indexList.toIndexList(timeBounds.min, timeBounds.max);
           }
-
+
+          return indexList;
+        }));
+
+      	var bodyStr = reqsFetchParams.map(function (fetchParams) {
           return angular.toJson({
-            index: indexList,
             type: fetchParams.type,
             search_type: fetchParams.search_type,
             ignore_unavailable: true
           })
           + '\n'
           + angular.toJson(fetchParams.body || {});
         }).join('\n') + '\n';
+
+        return {bodyStr: bodyStr, indices: indices};
       },
 
       /**
@@ -42904,13 +42909,27 @@ define('components/courier/fetch/_call_client',['require','lodash','components/c
         if (esPromise === ABORTED) {
           throw ABORTED;
         }
-
-        return (esPromise = es[strategy.clientMethod]({
+        var indices = [];
+        if(body.docs) {
+            indices = _.map(body.docs, function(v){ return v._index });
+            _.each(body.docs, function(v){
+                delete v._index;
+            });
+        } else if(body.indices) {
+            indices = body.indices;
+            body = body.bodyStr;
+        } else if(_.isArray(body)) {
+            var bodyStr = _.map(body, function(v){ return v.body }).join("\n");
+            indices = _.map(body, function(v){ return v.index });
+            body = bodyStr;
+        }
+
+        return es[strategy.clientMethod]({
           timeout: configFile.shard_timeout,
-          ignore_unavailable: true,
           preference: sessionId,
-          body: body
-        }));
+          body: body,
+          index: indices.join(',')
+        })
       })
       .then(function (clientResp) {
         return strategy.getResponses(clientResp);