DPL: minor fixes propaedeutic for Remote GUI (#7347)

Author: ktf

Framework/Core/src/DPLWebSocket.cxx

@@ -253,7 +253,8 @@ void WSDPLHandler::endHeaders()
   if (mHeaders["upgrade"] != "websocket") {
     throw WSError{400, "Bad Request: not a websocket upgrade"};
   }
-  if (mHeaders["connection"] != "upgrade") {
+
+  if (mHeaders["connection"].find("upgrade") == std::string::npos) {
     throw WSError{400, "Bad Request: connection not for upgrade"};
   }
   if (mHeaders["sec-websocket-protocol"] != "dpl") {
@@ -447,7 +448,8 @@ void WSDPLClient::endHeaders()
   if (mHeaders["upgrade"] != "websocket") {
     throw runtime_error_f("No websocket upgrade");
   }
-  if (mHeaders["connection"] != "upgrade") {
+  // find is used to account for multiple options
+  if (mHeaders["connection"].find("upgrade") == std::string::npos) {
     throw runtime_error_f("No connection upgrade");
   }
   if (mHeaders.count("sec-websocket-accept") == 0) {

Framework/Core/src/DriverServerContext.h

@@ -30,7 +30,7 @@ struct ServiceRegistry;
 struct GuiCallbackContext;
 
 struct DriverServerContext {
-  uv_loop_t* loop;
+  uv_loop_t* loop = nullptr;
   ServiceRegistry* registry = nullptr;
   std::vector<DeviceControl>* controls = nullptr;
   std::vector<DeviceInfo>* infos = nullptr;

Framework/Core/src/runDataProcessing.cxx

@@ -2357,7 +2357,7 @@ int doMain(int argc, char** argv, o2::framework::WorkflowSpec const& workflow,
     // configuration they get passed by their parents.
     for (auto& dp : importedWorkflow) {
       auto found = std::find_if(physicalWorkflow.begin(), physicalWorkflow.end(),
-                                [& name = dp.name](DataProcessorSpec const& spec) { return spec.name == name; });
+                                [&name = dp.name](DataProcessorSpec const& spec) { return spec.name == name; });
       if (found == physicalWorkflow.end()) {
         physicalWorkflow.push_back(dp);
         rankIndex.insert(std::make_pair(dp.name, workflowHashB));
@@ -2435,7 +2435,7 @@ int doMain(int argc, char** argv, o2::framework::WorkflowSpec const& workflow,
       throw std::runtime_error("Unable to do topological sort of the resulting workflow. Do you have loops?\n" + debugTopoInfo(physicalWorkflow, topoInfos, edges));
     }
     // Sort by layer and then by name, to ensure stability.
-    std::stable_sort(topoInfos.begin(), topoInfos.end(), [& workflow = physicalWorkflow, &rankIndex, &topoInfos](TopoIndexInfo const& a, TopoIndexInfo const& b) {
+    std::stable_sort(topoInfos.begin(), topoInfos.end(), [&workflow = physicalWorkflow, &rankIndex, &topoInfos](TopoIndexInfo const& a, TopoIndexInfo const& b) {
       auto aRank = std::make_tuple(a.layer, -workflow.at(a.index).outputs.size(), workflow.at(a.index).name);
       auto bRank = std::make_tuple(b.layer, -workflow.at(b.index).outputs.size(), workflow.at(b.index).name);
       return aRank < bRank;