!52 使用aria2替换原本的多线程下载

* update debian/control.
* fix: readme
* change: 切换到 aria2
* Download: 初步完成对 axel 的适配工作
* README: 英文修正 ubuntu22 的依赖问题
* Merge remote-tracking branch 'upstream/master'
* widget: 检查cdn状况在下载开始前检测,不堵塞ui线程
* Merge remote-tracking branch 'upstream/master'
* readme: 修正 ubuntu 的编译说明
* download: 检查软件源的有效性

src/downloadworker.h

@@ -6,52 +6,14 @@
 #include <QFile>
 #include <QNetworkReply>
 
-class DownloadWorker : public QObject
-{
-    Q_OBJECT
-
-public:
-    explicit DownloadWorker(QObject *parent = nullptr);
-
-    void setIdentifier(int identifier);
-    void setParamter(const QString &url, QPair<qint64, qint64> range, QFile *flle);
-    qint64 getReceivedPos();
-
-public slots:
-    void doWork();
-    void doStop();
-    void dataReady();
-    void slotFinish();
-    void handleProcess(qint64, qint64);
-
-private:
-    int identifier;
-    QString url;
-    qint64 startPos;
-    qint64 endPos;
-    qint64 receivedPos = 0;
-    QNetworkReply *reply;
-    QNetworkAccessManager *mgr;
-    QFile *file;
-
-signals:
-    void resultReady(int identifier, QByteArray data);
-    void testSignals();
-    void workFinished();
-    void downloadProcess();
-
-};
-
 class DownloadController : public QObject
 {
     Q_OBJECT
 
 public:
     explicit DownloadController(QObject *parent = nullptr);
-    ~DownloadController();
 
     void setFilename(QString filename);
-    void setThreadNum(int threadNum);
     void startDownload(const QString &url);
     void stopDownload();
     qint64 getFileSize(const QString& url);
@@ -59,21 +21,19 @@ public:
 
 private:
     int threadNum;
+    int pidNumber;
     QString filename;
     qint64 fileSize;
     QVector<QPair<qint64, qint64>> ranges;
     QFile *file;
-    QList<DownloadWorker*> workers;
-    int finish = 0;
+    bool finished = false;
     QVector<QString> domains;
 
-public slots:
-    void handleProcess();
-    void chunkDownloadFinish();
+
 
 signals:
     void errorOccur(const QString& msg);
-    void downloadProcess(qint64, qint64);
+    void downloadProcess(QString, qint64, qint64);
     void downloadFinished();
 
 };