[Network] Add a configured QNetworkAccessManager factory (#7628)

* [Network] Add a configured QNetworkAccessManager factory

Every HTTP caller built its own QNetworkAccessManager, so the system proxy
and a transfer timeout were easy to omit. Add NetworkManagerFactory::create()
as the single place that applies the process-wide proxy configuration and a
transfer timeout, and use it at all 14 construction sites.

Per-site settings such as disk caches and manual redirect policies stay with
their callers.

* [Tests] Link libcockatrice_network into the tests that compile its headers

release_channel.cpp and card_picture_loader_worker.cpp now include
libcockatrice/network/network_manager.h, but the test targets that compile
them only linked libcockatrice_settings, so the include directory never
reached them and every platform failed with "file not found":
loader_local_matching_test and picture_loader_benchmark_test.

libcockatrice_network is an INTERFACE library, so linking it costs these
targets nothing but hands over the include path.

---------

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>

cockatrice/src/interface/widgets/dialogs/dlg_load_deck_from_website.cpp

@@ -27,6 +27,7 @@
 #include <QVBoxLayout>
 #include <functional>
 #include <libcockatrice/card/import/card_name_normalizer.h>
+#include <libcockatrice/network/network_manager.h>
 #include <qnamespace.h>
 #include <version_string.h>
 
@@ -34,7 +35,7 @@ class QWidget;
 
 DlgLoadDeckFromWebsite::DlgLoadDeckFromWebsite(QWidget *parent) : QDialog(parent)
 {
-    nam = new QNetworkAccessManager(this);
+    nam = NetworkManagerFactory::create(this);
 
     layout = new QVBoxLayout(this);
     setLayout(layout);

cockatrice/src/interface/widgets/server/handle_public_servers.cpp

@@ -13,13 +13,14 @@
 #include <QUrl>
 #include <QVariant>
 #include <QVariantMap>
+#include <libcockatrice/network/network_manager.h>
 #include <libcockatrice/settings/servers_settings.h>
 #include <qlogging.h>
 
 #define PUBLIC_SERVERS_JSON "https://cockatrice.github.io/public-servers.json"
 
 HandlePublicServers::HandlePublicServers(QObject *parent)
-    : QObject(parent), nam(new QNetworkAccessManager(this)), reply(nullptr)
+    : QObject(parent), nam(NetworkManagerFactory::create(this)), reply(nullptr)
 {
 }
 

cockatrice/src/interface/widgets/tabs/api/archidekt/display/archidekt_api_response_deck_listings_display_widget.cpp

@@ -11,6 +11,7 @@
 #include <QNetworkAccessManager>
 #include <QNetworkRequest>
 #include <QSlider>
+#include <libcockatrice/network/network_manager.h>
 #include <libcockatrice/utility/qt_utils.h>
 #include <qnamespace.h>
 
@@ -27,8 +28,7 @@ ArchidektApiResponseDeckListingsDisplayWidget::ArchidektApiResponseDeckListingsD
 
     cardSizeSlider->enableCtrlScrollResize(flowWidget);
 
-    imageNetworkManager = new QNetworkAccessManager(this);
-    imageNetworkManager->setTransferTimeout(); // Use Qt's default timeout
+    imageNetworkManager = NetworkManagerFactory::create(this);
     imageNetworkManager->setRedirectPolicy(QNetworkRequest::ManualRedirectPolicy);
 
     // Add widgets for deck listings

cockatrice/src/interface/widgets/tabs/api/archidekt/tab_archidekt.cpp

@@ -48,6 +48,7 @@
 #include <QWidget>
 #include <QtGlobal>
 #include <libcockatrice/card/database/card_database_manager.h>
+#include <libcockatrice/network/network_manager.h>
 #include <libcockatrice/settings/cards_display_settings.h>
 #include <libcockatrice/utility/qt_utils.h>
 #include <qlogging.h>
@@ -58,8 +59,7 @@ TabArchidekt::TabArchidekt(TabSupervisor *_tabSupervisor)
     : Tab(_tabSupervisor), currentPage(1), isLoadingMore(false), isListMode(true)
 {
     // Initialize network
-    networkManager = new QNetworkAccessManager(this);
-    networkManager->setTransferTimeout();
+    networkManager = NetworkManagerFactory::create(this);
     networkManager->setRedirectPolicy(QNetworkRequest::ManualRedirectPolicy);
     connect(networkManager, &QNetworkAccessManager::finished, this, &TabArchidekt::processApiJson);
 

cockatrice/src/interface/widgets/tabs/api/commander_spellbook/handle_commander_brackets.cpp

@@ -12,12 +12,13 @@
 #include <QStringLiteral>
 #include <QUrl>
 #include <QVariant>
+#include <libcockatrice/network/network_manager.h>
 #include <libcockatrice/settings/commander_bracket_settings.h>
 
 static const QUrl COMMANDER_BRACKET_JSON_URL(QStringLiteral("https://cockatrice.github.io/commander-brackets.json"));
 
 HandleCommanderBrackets::HandleCommanderBrackets(QObject *parent)
-    : QObject(parent), nam(new QNetworkAccessManager(this)), reply(nullptr)
+    : QObject(parent), nam(NetworkManagerFactory::create(this)), reply(nullptr)
 {
 }
 

cockatrice/src/interface/widgets/tabs/api/edhrec/tab_edhrec.cpp

@@ -18,14 +18,14 @@
 #include <QRegularExpression>
 #include <QSharedPointer>
 #include <QUrl>
+#include <libcockatrice/network/network_manager.h>
 #include <qlogging.h>
 
 class TabSupervisor;
 
 TabEdhRec::TabEdhRec(TabSupervisor *_tabSupervisor) : Tab(_tabSupervisor)
 {
-    networkManager = new QNetworkAccessManager(this);
-    networkManager->setTransferTimeout(); // Use Qt's default timeout
+    networkManager = NetworkManagerFactory::create(this);
     networkManager->setRedirectPolicy(QNetworkRequest::ManualRedirectPolicy);
     connect(networkManager, &QNetworkAccessManager::finished, this, &TabEdhRec::processApiJson);
 }

cockatrice/src/interface/widgets/tabs/api/edhrec/tab_edhrec_main.cpp

@@ -32,6 +32,7 @@
 #include <libcockatrice/models/database/card/card_search_model.h>
 #include <libcockatrice/models/database/card_database_display_model.h>
 #include <libcockatrice/models/database/card_database_model.h>
+#include <libcockatrice/network/network_manager.h>
 #include <libcockatrice/settings/cards_display_settings.h>
 #include <version_string.h>
 
@@ -44,8 +45,7 @@ static bool canBeCommander(const CardInfoPtr &cardInfo)
 
 TabEdhRecMain::TabEdhRecMain(TabSupervisor *_tabSupervisor) : Tab(_tabSupervisor)
 {
-    networkManager = new QNetworkAccessManager(this);
-    networkManager->setTransferTimeout(); // Use Qt's default timeout
+    networkManager = NetworkManagerFactory::create(this);
     networkManager->setRedirectPolicy(QNetworkRequest::ManualRedirectPolicy);
     connect(networkManager, SIGNAL(finished(QNetworkReply *)), this, SLOT(processApiJson(QNetworkReply *)));