QT编写的邮件发送工具

#include "smtpclient.h" #include <QFileInfo> #include <QByteArray> SmtpClient::SmtpClient(const QString & host, int port, ConnectionType connectionType) : name("localhost"), authMethod(AuthPlain), connectionTimeout(5000), responseTimeout(5000) { 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)), this, SLOT(socketError(QAbstractSocket::SocketError))); connect(socket, SIGNAL(readyRead()), this, SLOT(socketReadyRead())); } SmtpClient::~SmtpClient() {} void SmtpClient::setUser(const QString &user) { this->user = user; } void SmtpClient::setPassword(const QString &password) { this->password = password; } void SmtpClient::setAuthMethod(AuthMethod method) { this->authMethod = method; } void SmtpClient::setHost(QString &host) { this->host = host; } void SmtpClient::setPort(int port) { this->port = port; } void SmtpClient::setConnectionType(ConnectionType ct) { this->connectionType = ct; switch (connectionType) { case TcpConnection: socket = new QTcpSocket(this); break; case SslConnection: case TlsConnection: socket = new QSslSocket(this); } } const QString& SmtpClient::getHost() const { return this->host; } const QString& SmtpClient::getUser() const { return this->user; } const QString& SmtpClient::getPassword() const { return this->password; } SmtpClient::AuthMethod SmtpClient::getAuthMethod() const { return this->authMethod; } int SmtpClient::getPort() const { return this->port; } SmtpClient::ConnectionType SmtpClient::getConnectionType() const { return connectionType; } const QString& SmtpClient::getName() const { return this->name; } void SmtpClient::setName(const QString &name) { this->name = name; } const QString & SmtpClient::getResponseText() const { return responseText; } int SmtpClient::getResponseCode() const { return responseCode; } QTcpSocket* SmtpClient::getSocket() { return socket; } int SmtpClient::getConnectionTimeout() const { return connectionTimeout; } void SmtpClient::setConnectionTimeout(int msec) { connectionTimeout = msec; } int SmtpClient::getResponseTimeout() const { return responseTimeout; } void SmtpClient::setResponseTimeout(int msec) { responseTimeout = msec; } bool SmtpClient::connectToHost() { switch (connectionType) { case TlsConnection: case TcpConnection: socket->connectToHost(host, port); break; case SslConnection: ((QSslSocket*) socket)->connectToHostEncrypted(host, port); break; } if (!socket->waitForConnected(connectionTimeout)) { emit smtpError(ConnectionTimeoutError); return false; } try { // Wait for the server's response waitForResponse(); // If the response code is not 220 (Service ready) // means that is something wrong with the server if (responseCode != 220) { emit smtpError(ServerError); return false; } // Send a EHLO/HELO message to the server // The client's first command must be EHLO/HELO sendMessage("EHLO " + name); // Wait for the server's response waitForResponse(); // The response code needs to be 250. if (responseCode != 250) { emit smtpError(ServerError); return false; } if (connectionType == TlsConnection) { // send a request to start TLS handshake sendMessage("STARTTLS"); // Wait for the server's response waitForResponse(); // The response code needs to be 220. if (responseCode != 220) { emit smtpError(ServerError); return false; }; ((QSslSocket*) socket)->startClientEncryption(); if (!((QSslSocket*) socket)->waitForEncrypted(connectionTimeout)) { qDebug() << ((QSslSocket*) socket)->errorString(); emit smtpError(ConnectionTimeoutError); return false; } // Send ELHO one more time sendMessage("EHLO " + name); // Wait for the server's response waitForResponse(); // The response code needs to be 250. if (responseCode != 250) { emit smtpError(ServerError); return false; } } } catch (ResponseTimeoutException) { return false; } return true; } bool SmtpClient::login() { return login(user, password, authMethod); } bool SmtpClient::login(const QString &user, const QString &password, AuthMethod method) { try { if (method == AuthPlain) { // Sending command: AUTH PLAIN base64('\0' + username + '\0' + password) sendMessage("AUTH PLAIN " + QByteArray().append((char) 0).append(user).append((char) 0).append(password).toBase64()); // Wait for the server's response waitForResponse(); // If the response is not 235 then the authentication was faild if (responseCode != 235) { emit smtpError(AuthenticationFailedError); return false; } } else if (method == AuthLogin) { // Sending command: AUTH LOGIN sendMessage("AUTH LOGIN"); // Wait for 334 response code waitForResponse(); if (responseCode != 334) { emit smtpError(AuthenticationFailedError); return false; } // Send the username in base64 sendMessage(QByteArray().append(user).toBase64()); // Wait for 334 waitForResponse(); if (responseCode != 334) { emit smtpError(AuthenticationFailedError); return false; } // Send the password in base64 sendMessage(QByteArray().append(password).toBase64()); // Wait for the server's responce waitForResponse(); // If the response is not 235 then the authentication was faild if (responseCode != 235) { emit smtpError(AuthenticationFailedError); return false; } } } catch (ResponseTimeoutException e) { // Responce Timeout exceeded emit smtpError(AuthenticationFailedError); return false; } return true; } bool SmtpClient::sendMail(MimeMessage& email) { try { // Send the MAIL command with the sender sendMessage("MAIL FROM: <" + email.getSender().getAddress() + ">"); waitForResponse(); if (responseCode != 250) return false; // Send RCPT command for each recipient QList<EmailAddress*>::const_iterator it, itEnd; // To (primary recipients) for (it = email.getRecipients().begin(), itEnd = email.getRecipients().end(); it != itEnd; ++it) { sendMessage("RCPT TO: <" + (*it)->getAddress() + ">"); waitForResponse(); if (responseCode != 250) return false; } // Cc (carbon copy) for (it = email.getRecipients(MimeMessage::Cc).begin(), itEnd = email.getRecipients(MimeMessage::Cc).end(); it != itEnd; ++it) { sendMessage("