Code and API cleanup.

src/mimefile.cpp

@@ -45,14 +45,12 @@ MimeFile::~MimeFile()
 /* [3] Protected methods */
 
 
-void MimeFile::writeContent(QIODevice &device) {
+void MimeFile::writeContent(QIODevice &device) const {
     file->open(QIODevice::ReadOnly);    
-    this->content = file->readAll();
+    const QByteArray &fileContent = file->readAll();
     file->close();
 
-    MimePart::writeContent(device);
+    MimePart::writeContent(device, fileContent);
-
-    this->content.clear();
 }
 
 /* [3] --- */

src/mimefile.h

@@ -51,7 +51,7 @@ protected:
 
     /* [4] Protected methods */
 
-    void writeContent(QIODevice &device);
+    void writeContent(QIODevice &device) const;
 
 
     /* [4] --- */

src/mimemessage.cpp

@@ -140,7 +140,7 @@ const QList<MimePart*> & MimeMessage::getParts() const
 
 /* [3] Public Methods */
 
-QString MimeMessage::toString()
+QString MimeMessage::toString() const
 {
     QBuffer out;
     out.open(QIODevice::WriteOnly);
@@ -168,7 +168,7 @@ QByteArray MimeMessage::formatAddress(EmailAddress *address, MimePart::Encoding
     return result;
 }
 
-void MimeMessage::writeToDevice(QIODevice &out) {
+void MimeMessage::writeToDevice(QIODevice &out) const {
     /* =========== MIME HEADER ============ */
 
     /* ---------- Sender / From ----------- */

src/mimemessage.h

@@ -69,8 +69,8 @@ public:
 
     /* [3] Public methods */
 
-    virtual QString toString();
+    virtual QString toString() const;
-    void writeToDevice(QIODevice &device);
+    void writeToDevice(QIODevice &device) const;
 
     /* [3] --- */
 

src/mimemultipart.cpp

@@ -54,10 +54,10 @@ const QList<MimePart*> & MimeMultiPart::getParts() const {
     return parts;
 }
 
-void MimeMultiPart::writeContent(QIODevice &device) {
+void MimeMultiPart::writeContent(QIODevice &device) const {
-    QList<MimePart*>::iterator it;
+    QList<MimePart*>::const_iterator it;
 
-    for (it = parts.begin(); it != parts.end(); it++) {
+    for (it = parts.constBegin(); it != parts.constEnd(); it++) {
         device.write("--" );
         device.write(cBoundary.toLatin1());
         device.write("\r\n");

src/mimemultipart.h

@@ -60,7 +60,7 @@ public:
 
     void addPart(MimePart *part);
 
-    void writeContent(QIODevice &device);
+    void writeContent(QIODevice &device) const;
 
     /* [3] --- */
 

src/mimepart.cpp

@@ -131,7 +131,7 @@ int MimePart::getMaxLineLength() const {
 
 /* [3] Public methods */
 
-QString MimePart::toString()
+QString MimePart::toString() const
 {
     QBuffer out;
     out.open(QIODevice::WriteOnly);
@@ -139,7 +139,7 @@ QString MimePart::toString()
     return QString(out.buffer());
 }
 
-void MimePart::writeToDevice(QIODevice &device) {
+void MimePart::writeToDevice(QIODevice &device) const {
     QString header;
 
     /* === Header Prepare === */
@@ -203,7 +203,11 @@ void MimePart::writeToDevice(QIODevice &device) {
 
 /* [4] Protected methods */
 
-void MimePart::writeContent(QIODevice &device) {
+void MimePart::writeContent(QIODevice &device) const {
+    this->writeContent(device, content);
+}
+
+void MimePart::writeContent(QIODevice &device, const QByteArray &content) const {
     switch (cEncoding)
     {
     case _7Bit:

src/mimepart.h

@@ -82,8 +82,8 @@ public:
 
     /* [3] Public methods */
 
-    virtual QString toString();
+    virtual QString toString() const;
-    void writeToDevice(QIODevice &device);
+    void writeToDevice(QIODevice &device) const;
 
     /* [3] --- */
 
@@ -108,7 +108,8 @@ protected:
 
     /* [4] --- */
 
-    virtual void writeContent(QIODevice &device);
+    virtual void writeContent(QIODevice &device) const;
+    void writeContent(QIODevice &device, const QByteArray &content) const;
 };
 
 #endif // MIMEPART_H

src/mimetext.cpp

@@ -50,9 +50,8 @@ const QString & MimeText::getText() const
 
 /* [3] Protected Methods */
 
-void MimeText::writeContent(QIODevice &device) {
+void MimeText::writeContent(QIODevice &device) const {
-    this->content = text.toLocal8Bit();
+    MimePart::writeContent(device, text.toLocal8Bit());
-    MimePart::writeContent(device);
 }
 
 /* [3] --- */

src/mimetext.h

@@ -52,7 +52,7 @@ protected:
 
     /* [4] Protected methods */
 
-    void writeContent(QIODevice &device);
+    void writeContent(QIODevice &device) const;
 
     /* [4] --- */
 

src/quotedprintable.cpp

@@ -20,14 +20,13 @@
 
 QString QuotedPrintable::encode(const QByteArray &input)
 {
-    QString output;
-
-    char byte;
     static const char hex[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
 
+    QString output;
+
     for (int i = 0; i < input.length() ; ++i)
     {
-        byte = input[i];
+        const char byte = input[i];
 
         if ((byte == 0x20) || ((byte >= 33) && (byte <= 126) && (byte != 61))) {
             output.append(byte);

src/smtpclient.cpp

@@ -28,17 +28,15 @@
 
 SmtpClient::SmtpClient(const QString & host, int port, ConnectionType connectionType) :
     state(UnconnectedState),
+    host(host),
+    port(port),
     name("localhost"),
-    authMethod(AuthPlain),
     isReadyConnected(false),
     isAuthenticated(false),
     isMailSent(false)
 {
     setConnectionType(connectionType);
 
-    this->host = host;
-    this->port = port;
-
     connect(socket, SIGNAL(stateChanged(QAbstractSocket::SocketState)),
             this, SLOT(socketStateChanged(QAbstractSocket::SocketState)));
     connect(socket, SIGNAL(error(QAbstractSocket::SocketError)),
@@ -53,50 +51,6 @@ SmtpClient::~SmtpClient() {}
 
 
 /* [2] Getters and Setters */
-
-/**
- * @brief Sets the username to the specified value.
- */
-void SmtpClient::setUser(const QString &user)
-{
-    this->user = user;
-}
-
-/**
- * @brief Sets the password to the specified value
- */
-void SmtpClient::setPassword(const QString &password)
-{
-    this->password = password;
-}
-
-/**
- * @brief Changes the authentication method to the specified.
- */
-void SmtpClient::setAuthMethod(AuthMethod method)
-{
-    this->authMethod = method;
-}
-
-/**
- * @brief Sets the host of connection.
- * @deprecated Use the constructor.
- */
-void SmtpClient::setHost(QString &host)
-{
-    this->host = host;
-}
-
-/**
- * @brief Sets the connection port to the specified value.
- * @param port
- * @deprecated Use the constructor.
- */
-void SmtpClient::setPort(int port)
-{
-    this->port = port;
-}
-
 /**
  * @brief Returns the host name of the server.
  */
@@ -105,30 +59,6 @@ const QString& SmtpClient::getHost() const
     return this->host;
 }
 
-/**
- * @brief Returns the username used for authenticating.
- */
-const QString& SmtpClient::getUser() const
-{
-    return this->user;
-}
-
-/**
- * @brief Returns the password used for authenticating.
- */
-const QString& SmtpClient::getPassword() const
-{
-    return this->password;
-}
-
-/**
- * @brief Returns the authentication method used.
- */
-SmtpClient::AuthMethod SmtpClient::getAuthMethod() const
-{
-    return this->authMethod;
-}
-
 /**
  * @brief Return the port.
  */
@@ -191,45 +121,38 @@ QTcpSocket* SmtpClient::getSocket() {
 
 /* [3] Public methods */
 
-bool SmtpClient::connectToHost()
+void SmtpClient::connectToHost()
 {
     if (state != UnconnectedState)
-        return false;
+        return;
 
     changeState(ConnectingState);
-    return true;
 }
 
-bool SmtpClient::login()
+void SmtpClient::login()
 {
     if (!isReadyConnected || isAuthenticated)
-        return false;
+        return;
 
     changeState(AuthenticatingState);
-    return true;
 }
 
-bool SmtpClient::login(const QString &user, const QString &password, AuthMethod method)
+void SmtpClient::login(const QString &user, const QString &password, AuthMethod method)
 {
-    this->user = user;
+    this->authInfo = AuthInfo(user, password, method);
-    this->password = password;
+    login();
-    this->authMethod = method;
-    clearUserDataAfterLogin = true;
-    return login();
 }
 
-bool SmtpClient::sendMail(MimeMessage& email)
+void SmtpClient::sendMail(const MimeMessage & email)
 {
     if (!isReadyConnected)
-        return false;
+        return;
 
     isMailSent = false;
 
     this->email = &email;
     this->rcptType = 0;
     changeState(MailSendingState);
-
-    return true;
 }
 
 void SmtpClient::quit()
@@ -340,7 +263,7 @@ void SmtpClient::changeState(SmtpClient::ClientState state) {
 
     case AuthenticatingState:
         isAuthenticated = false;
-        changeState(authMethod == AuthPlain ? _AUTH_PLAIN_0 : _AUTH_LOGIN_0);
+        changeState(authInfo.authMethod == AuthPlain ? _AUTH_PLAIN_0 : _AUTH_LOGIN_0);
         break;
 
     case MailSendingState:
@@ -390,8 +313,8 @@ void SmtpClient::changeState(SmtpClient::ClientState state) {
     /* --- AUTH --- */
     case _AUTH_PLAIN_0:
         // Sending command: AUTH PLAIN base64('\0' + username + '\0' + password)
-        sendMessage("AUTH PLAIN " + QByteArray().append((char) 0).append(user)
+        sendMessage("AUTH PLAIN " + QByteArray().append((char) 0).append(authInfo.username)
-                    .append((char) 0).append(password).toBase64());
+                    .append((char) 0).append(authInfo.password).toBase64());
         break;
 
     case _AUTH_LOGIN_0:
@@ -400,20 +323,17 @@ void SmtpClient::changeState(SmtpClient::ClientState state) {
 
     case _AUTH_LOGIN_1_USER:
         // Send the username in base64
-        sendMessage(QByteArray().append(user).toBase64());
+        sendMessage(QByteArray().append(authInfo.username).toBase64());
         break;
 
     case _AUTH_LOGIN_2_PASS:
         // Send the password in base64
-        sendMessage(QByteArray().append(password).toBase64());
+        sendMessage(QByteArray().append(authInfo.password).toBase64());
         break;
 
     case _READY_Authenticated:
         isAuthenticated = true;
-        if (clearUserDataAfterLogin) {
+        authInfo = AuthInfo();
-            password = ""; user = "";
-            clearUserDataAfterLogin = false;
-        }
         changeState(ReadyState);
         emit authenticated();
         break;
@@ -425,6 +345,7 @@ void SmtpClient::changeState(SmtpClient::ClientState state) {
 
     case _MAIL_1_RCPT_INIT:
         rcptType++;
+        const QList<EmailAddress*> *addressList;
         switch (rcptType)
         {
         case _TO:
@@ -441,11 +362,12 @@ void SmtpClient::changeState(SmtpClient::ClientState state) {
             return;
         }
         addressIt = addressList->constBegin();
+        addressItEnd = addressList->constEnd();
         changeState(_MAIL_2_RCPT);
         break;
 
     case _MAIL_2_RCPT:
-        if (addressIt != addressList->end()) {
+        if (addressIt != addressItEnd) {
             sendMessage("RCPT TO: <" + (*addressIt)->getAddress() + ">");
             addressIt++;
         } else {

src/smtpclient.h

@@ -112,25 +112,12 @@ public:
     /* [2] Getters and Setters */
 
     const QString& getHost() const;
-    void setHost(QString &host);
-
     int getPort() const;
-    void setPort(int port);
+    ConnectionType getConnectionType() const;
 
     const QString& getName() const;
     void setName(const QString &name);
 
-    ConnectionType getConnectionType() const;
-
-    const QString & getUser() const;
-    void setUser(const QString &host);
-
-    const QString & getPassword() const;
-    void setPassword(const QString &password);
-
-    SmtpClient::AuthMethod getAuthMethod() const;
-    void setAuthMethod(AuthMethod method);
-
     const QString & getResponseText() const;
     int getResponseCode() const;
 
@@ -141,11 +128,9 @@ public:
 
     /* [3] Public methods */
 
-    bool connectToHost();
+    void connectToHost();
-    bool login();
+    void login(const QString &user, const QString &password, AuthMethod method = AuthLogin);
-    bool login(const QString &user, const QString &password,
+    void sendMail(const MimeMessage & email);
-               AuthMethod method = AuthLogin);
-    bool sendMail(MimeMessage& email);
     void quit();
 
     bool waitForReadyConnected(int msec = 30000);
@@ -158,19 +143,25 @@ protected:
 
     /* [4] Protected members */
 
+    struct AuthInfo {
+        QString username;
+        QString password;
+        AuthMethod authMethod;
+
+        AuthInfo(const QString & username = "", const QString &password = "", AuthMethod authMethod = AuthPlain) :
+            username(username), password(password), authMethod(authMethod) {}
+    };
+
     QTcpSocket *socket;
     ClientState state;
-    bool syncMode;
 
-    QString host;
+    const QString host;
-    int port;
+    const int port;
     ConnectionType connectionType;
+
     QString name;
 
-    QString user;
+    AuthInfo authInfo;
-    QString password;
-    AuthMethod authMethod;
-    bool clearUserDataAfterLogin;
 
     QString responseText;
     QString tempResponse;
@@ -180,17 +171,19 @@ protected:
     bool isAuthenticated;
     bool isMailSent;
 
-    MimeMessage *email;
+    const MimeMessage *email;
-    QList<EmailAddress*>::const_iterator addressIt;
-    const QList<EmailAddress*> *addressList;
 
     int rcptType;
     enum _RcptType { _TO = 1, _CC = 2, _BCC = 3};
 
+    QList<EmailAddress*>::const_iterator addressIt;
+    QList<EmailAddress*>::const_iterator addressItEnd;
+
     /* [4] --- */
 
 
     /* [5] Protected methods */
+    void login();
     void setConnectionType(ConnectionType ct);
     void changeState(ClientState state);
     void processResponse();