some improvements

* add plugin tree
* add emailnotify plugin template

sources/plugins/emailnotify/QueuedEmailNotifyHelper.h

@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2017 Queued team
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ *
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ */
+
+
+#ifndef QUEUEDEMAILNOTIFYHELPER_H
+#define QUEUEDEMAILNOTIFYHELPER_H
+
+#include <QObject>
+
+
+class QueuedEmailNotifyHelper : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(QString from READ from WRITE setFrom)
+    Q_PROPERTY(bool insecureCurl READ isInsecureCurl WRITE setInsecureCurl)
+    Q_PROPERTY(QString password READ password WRITE setPassword)
+    Q_PROPERTY(int port READ port WRITE setPort)
+    Q_PROPERTY(QString server READ server WRITE setServer)
+    Q_PROPERTY(bool ssl READ isSslEnabled WRITE setSslEnabled)
+    Q_PROPERTY(QString username READ username WRITE setUsername)
+
+public:
+    typedef struct {
+        QStringList text;
+        int currentLine = 0;
+    } MailBody;
+
+    explicit QueuedEmailNotifyHelper(QObject *_parent);
+    virtual ~QueuedEmailNotifyHelper() = default;
+    static QString curlEmail(const QString &_from);
+    static char *curlString(const QString &_source);
+    static size_t curlReadCallback(char *buffer, size_t size, size_t nitems,
+                                   void *instream);
+    // properties
+    QString from() const;
+    bool isInsecureCurl() const;
+    bool isSslEnabled() const;
+    QString password() const;
+    int port() const;
+    QString server() const;
+    QString username() const;
+    void setFrom(const QString &_from);
+    void setInsecureCurl(const bool _insecureCurl);
+    void setPassword(const QString &_password);
+    void setPort(const int &_port);
+    void setServer(const QString &_server);
+    void setSslEnabled(const bool _sslEnabled);
+    void setUsername(const QString &_username);
+
+public slots:
+    void sendEmail(const long long _id);
+
+private:
+    QString getEmail(const long long _id) const;
+    QStringList getEmailText(const long long _id, const QString &_to) const;
+    QString m_from;
+    bool m_insecure = false;
+    QString m_password;
+    int m_port = 0;
+    QString m_server;
+    bool m_ssl = false;
+    QString m_username;
+};
+
+
+#endif /* QUEUEDEMAILNOTIFYHELPER_H */