添加API调用接口，添加读取分类，添加SpkUtils实用函数

使用了SpkSidebarTree子类实现对TreeWidget的特殊要求：不能取消选择，不能拖拽选择。

API调用接口暂时写死。API会获取

配置文件已添加但暂不使用。

src/spklogging.cpp

@@ -96,12 +96,12 @@ void SpkLogger::Error(QString message, const bool pop)
 //                               .arg(message));
 //    msgbox.exec(); // I don't know whether we need to show it non-modal.
     SpkMsgBox::StaticExec(QObject::tr("Spark Store has encountered an error.\n"
-                               "Parts of the experience is expected to be broken.\n\n"
-                               "Details:\n%1"),
+                               "Parts of the experience is expected to be broken.\n\n"),
                           QObject::tr("Spark Store Error"),
                           QMessageBox::Critical,
                           QMessageBox::Ok,
-                          message);
+                          message,
+                          true);
   }
 }
 
@@ -122,3 +122,8 @@ void SpkLogger::Critical(QString message)
   exit(2);
 }
 
+void SpkLogger::Notify(QString message)
+{
+  Q_UNUSED(message);
+}
+

src/spkstore.cpp

@@ -1,12 +1,16 @@
 
 #include <spkui_general.h>
-#include "dtk/spkdtkplugin.h"
 #include <QPluginLoader>
 #include <QDir>
 #include <QApplication>
+#include <QtNetwork/QNetworkProxy>
+#include "dtk/spkdtkplugin.h"
+#include "gitver.h"
 #include "spkstore.h"
+#include "spkutils.h"
 
 SpkStore *SpkStore::Instance = nullptr;
+static void InstallDefaultConfigs();
 
 SpkStore::SpkStore(bool aCli, QString &aLogPath)
 {
@@ -17,8 +21,27 @@ SpkStore::SpkStore(bool aCli, QString &aLogPath)
   Instance = this;
 
   // Finish all essential initialization after this.
+  if(QFileInfo(QDir::homePath() + "/.config/spark-store/config").exists())
+    mCfg = new QSettings(QDir::homePath() + "/.config/spark-store/config", QSettings::IniFormat);
+  else
+  {
+    mCfg = new QSettings(":/info/default_config", QSettings::IniFormat);
+#ifndef NDEBUG
+    if(!qgetenv("SPARK_NO_INSTALL_CONFIG").toInt())
+    {
+      if(!QFile::copy(":/info/default_config", QDir::homePath() + "/.config/spark-store/config"))
+        sErrPop(tr("Cannot install default config file!"));
+    }
+#endif
+  }
 
   mNetMgr = new QNetworkAccessManager(this);
+  mNetMgr->setProxy(QNetworkProxy(QNetworkProxy::NoProxy)); // FIXME
+  mDistroName = SpkUtils::GetDistroName();
+  mApiRequestUrl = "https://store.deepinos.org/api/"; // TODO: CHECK BEFORE 4.0 RELEASE
+  mUserAgentStr = QString("Spark-Store/%1 Distro/%2")
+      .arg(GitVer::DescribeTags())
+      .arg(mDistroName);
 
   // Finish all essential initialization before this.
   if(aCli)
@@ -36,3 +59,17 @@ SpkStore::~SpkStore()
   delete mMainWindow;
   delete mLogger;
 }
+
+QNetworkReply *SpkStore::SendApiRequest(QString aPath, QJsonDocument aParam)
+{
+  QNetworkRequest request;
+  request.setUrl(mApiRequestUrl + aPath);
+  request.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
+  request.setHeader(QNetworkRequest::UserAgentHeader, mUserAgentStr);
+  return mNetMgr->post(request, aParam.isEmpty() ? "{}" : aParam.toJson(QJsonDocument::Compact));
+}
+
+static void InstallDefaultConfigs()
+{
+  //TODO:STUB
+}

src/spkutils.cpp

@@ -0,0 +1,78 @@
+
+#include <QDebug>
+#include "spkutils.h"
+
+void SpkUtils::VerifySingleRequest(QPointer<QNetworkReply> aReply)
+{
+  if(aReply.isNull())
+    return;
+  aReply->disconnect(SIGNAL(finished()));
+  aReply->abort();
+  aReply->deleteLater();
+}
+
+QString SpkUtils::GetDistroName()
+{
+  QSettings osRelease("/etc/os-release", QSettings::IniFormat);
+  return osRelease.value("PRETTY_NAME", "Unknown Distro").toString();
+}
+
+bool SpkUtils::VerifyReplyJson(QNetworkReply *aReply, QJsonValue &aRetDoc)
+{
+  QJsonParseError err;
+  QByteArray rawjson = aReply->readAll();
+  qDebug() << "Received:" << rawjson;
+  QJsonDocument ret = QJsonDocument::fromJson(rawjson, &err);
+  QJsonObject replyObject;
+  if(err.error != QJsonParseError::NoError)
+  {
+    sNotify(QObject::tr("Failed to parse server reply! Error %1.").arg(err.error));
+    sErr(QObject::tr("VerifyReplyJson: returned JSON of request to %1 is unreadable.")
+         .arg(aReply->url().toString()));
+    return false;
+  }
+  if(!ret.isObject())
+  {
+    sNotify(QObject::tr("Server sent back an invalid response."));
+    sErr(QObject::tr("VerifyReplyJson: returned JSON of request to %1 is not an Object.")
+         .arg(aReply->url().toString()));
+    return false;
+  }
+  replyObject = ret.object();
+  if(!replyObject.contains("code"))
+  {
+    sWarn(QObject::tr("VerifyReplyJson: reply of request to %1 doesn't have a code.")
+          .arg(aReply->url().toString()));
+  }
+  else
+  {
+    auto OpRetCode = replyObject.value("code");
+    if(!OpRetCode.isDouble())
+    {
+      sWarn(QObject::tr("VerifyReplyJson: Reply of request to %1 has a non-numeric code.")
+            .arg(aReply->url().toString()));
+    }
+    else if(OpRetCode.toInt() != 0)
+    {
+      sNotify(QObject::tr("Server sent back an failure message; code: %1.")
+              .arg(OpRetCode.toInt()));
+      sErr(QObject::tr("VerifyReplyJson: Request to %1 failed with code %2.")
+           .arg(aReply->url().toString()).arg(OpRetCode.toInt()));
+      return false;
+    }
+  }
+  if(!replyObject.contains("data"))
+  {
+    sNotify(QObject::tr("Server did not reply with any data."));
+    sErr(QObject::tr("VerifyReplyJson: Reply of request to %1 didn't include any data.")
+         .arg(aReply->url().toString()));
+    return false;
+  }
+  aRetDoc = replyObject.value("data");
+  return true;
+}
+
+void SpkUtils::DeleteReplyLater(QNetworkReply *aReply)
+{
+  QObject::connect(aReply, &QNetworkReply::finished, aReply, &QObject::deleteLater);
+}