State machine implementation terminated. Added some functions

(waitForReadyConnected, waitForAuthenticated, waitForMailSent)
synchronous waiting.

Added writeToDevice() function to MimeMessage and MimePart (and
subclasses), now these are used in SmtpClient instead of toString().

Added some unit tests.

SMTPEmail.pro

@@ -1,46 +0,0 @@
-#-------------------------------------------------
-#
-# Project created by QtCreator 2011-08-11T20:59:25
-#
-#-------------------------------------------------
-
-QT       += core gui network
-
-TARGET = SMTPEmail
-TEMPLATE = app
-
-
-SOURCES += \
-    src/emailaddress.cpp \
-    src/mimeattachment.cpp \
-    src/mimefile.cpp \
-    src/mimehtml.cpp \
-    src/mimeinlinefile.cpp \
-    src/mimemessage.cpp \
-    src/mimepart.cpp \
-    src/mimetext.cpp \
-    src/smtpclient.cpp \
-    src/quotedprintable.cpp \
-    src/mimemultipart.cpp \
-    src/mimecontentformatter.cpp
-
-HEADERS  += \
-    src/emailaddress.h \
-    src/mimeattachment.h \
-    src/mimefile.h \
-    src/mimehtml.h \
-    src/mimeinlinefile.h \
-    src/mimemessage.h \
-    src/mimepart.h \
-    src/mimetext.h \
-    src/smtpclient.h \
-    src/SmtpMime \
-    src/quotedprintable.h \
-    src/mimemultipart.h \
-    src/mimecontentformatter.h
-
-OTHER_FILES += \
-    LICENSE \
-    README.md
-
-FORMS +=

src/SMTPEmail.pro

@@ -0,0 +1,59 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2011-08-11T20:59:25
+#
+#-------------------------------------------------
+
+QT       += core network
+
+TARGET = SmtpMime
+TEMPLATE = lib
+
+DEFINE += SMTP_MIME_LIBRARY
+
+SOURCES += \
+    emailaddress.cpp \
+    mimeattachment.cpp \
+    mimefile.cpp \
+    mimehtml.cpp \
+    mimeinlinefile.cpp \
+    mimemessage.cpp \
+    mimepart.cpp \
+    mimetext.cpp \
+    smtpclient.cpp \
+    quotedprintable.cpp \
+    mimemultipart.cpp \
+    mimecontentencoder.cpp \
+    mimebase64encoder.cpp \
+    mimeqpencoder.cpp \
+    mimeqpformatter.cpp \
+    mimebase64formatter.cpp \
+    mimecontentformatter.cpp
+
+HEADERS  += \
+    emailaddress.h \
+    mimeattachment.h \
+    mimefile.h \
+    mimehtml.h \
+    mimeinlinefile.h \
+    mimemessage.h \
+    mimepart.h \
+    mimetext.h \
+    smtpclient.h \
+    SmtpMime \
+    quotedprintable.h \
+    mimemultipart.h \
+    smtpmime_global.h \
+    mimecontentencoder.h \
+    mimebase64encoder.h \
+    mimeqpencoder.h \
+    mimeqpformatter.h \
+    mimepart.cpp.autosave \
+    mimebase64formatter.h \
+    mimecontentformatter.h
+
+OTHER_FILES += \
+    LICENSE \
+    README.md
+
+FORMS +=

src/emailaddress.h

@@ -19,9 +19,10 @@
 #ifndef EMAILADDRESS_H
 #define EMAILADDRESS_H
 
+#include "smtpmime_global.h"
 #include <QObject>
 
-class EmailAddress : public QObject
+class SMTP_MIME_EXPORT EmailAddress : public QObject
 {
     Q_OBJECT
 public:

src/mimeattachment.cpp

@@ -24,6 +24,7 @@
 MimeAttachment::MimeAttachment(QFile *file)
     : MimeFile(file)
 {
+    this->headerLines += "Content-disposition: attachment\r\n";
 }
 
 MimeAttachment::~MimeAttachment()
@@ -35,12 +36,4 @@ MimeAttachment::~MimeAttachment()
 
 /* [2] Protected methods */
 
-void MimeAttachment::prepare()
-{
-    this->header += "Content-disposition: attachment\r\n";
-
-    /* !!! IMPORTANT !!! */
-    MimeFile::prepare();
-}
-
 /* [2] --- */

src/mimeattachment.h

@@ -19,11 +19,13 @@
 #ifndef MIMEATTACHMENT_H
 #define MIMEATTACHMENT_H
 
+
 #include <QFile>
+#include "smtpmime_global.h"
 #include "mimepart.h"
 #include "mimefile.h"
 
-class MimeAttachment : public MimeFile
+class SMTP_MIME_EXPORT MimeAttachment : public MimeFile
 {
     Q_OBJECT
 public:
@@ -38,9 +40,6 @@ public:
 protected:
 
     /* [2] Protected methods */
-
-    virtual void prepare();
-
     /* [2] --- */
 };
 

src/mimebase64encoder.cpp

@@ -0,0 +1,7 @@
+#include "mimebase64encoder.h"
+
+MimeBase64Encoder::MimeBase64Encoder() {}
+
+QByteArray MimeBase64Encoder::encode(const QByteArray &data) {
+    return data.toBase64();
+}

src/mimebase64encoder.h

@@ -0,0 +1,14 @@
+#ifndef MIMEBASE64ENCODER_H
+#define MIMEBASE64ENCODER_H
+
+#include "mimecontentencoder.h"
+
+class MimeBase64Encoder : public MimeContentEncoder
+{
+public:
+    MimeBase64Encoder();
+
+    QByteArray encode(const QByteArray &data);
+};
+
+#endif // MIMEBASE64ENCODER_H

src/mimebase64formatter.cpp

@@ -0,0 +1,17 @@
+#include "mimebase64formatter.h"
+
+MimeBase64Formatter::MimeBase64Formatter(QIODevice *out) :
+    MimeContentFormatter(out) {}
+
+qint64 MimeBase64Formatter::writeData(const char *data, qint64 maxLength) {
+    qDebug("called");
+    int lines = (maxLength - 1) / lineLength + 1;
+    for (int i = 1; i < lines; ++i) {
+        output->write(data, lineLength);
+        output->write("\r\n");
+        data += lineLength;
+    }
+    output->write(data, maxLength - (lines - 1) * lineLength);
+    output->write("\r\n");
+    return maxLength;
+}

src/mimebase64formatter.h

@@ -0,0 +1,15 @@
+#ifndef MIMEBASE64FORMATTER_H
+#define MIMEBASE64FORMATTER_H
+
+#include "mimecontentformatter.h"
+
+class MimeBase64Formatter : public MimeContentFormatter
+{
+public:
+    MimeBase64Formatter(QIODevice*);
+
+protected:
+    virtual qint64 writeData(const char *data, qint64 len);    
+};
+
+#endif // MIMEBASE64FORMATTER_H

src/mimecontentencoder.cpp

@@ -0,0 +1,3 @@
+#include "mimecontentencoder.h"
+
+MimeContentEncoder::MimeContentEncoder() {}

src/mimecontentencoder.h

@@ -0,0 +1,16 @@
+#ifndef MIMEENCODER_H
+#define MIMEENCODER_H
+
+#include <QObject>
+#include <QByteArray>
+
+class MimeContentEncoder : public QObject
+{
+public:
+    virtual QByteArray encode(const QByteArray &data) =0;
+
+protected:
+    MimeContentEncoder();
+};
+
+#endif // MIMEENCODER_H

src/mimecontentformatter.cpp

@@ -1,66 +1,20 @@
-/*
-  Copyright (c) 2011-2012 - Tőkés Attila
-
-  This file is part of SmtpClient for Qt.
-
-  This library is free software; you can redistribute it and/or
-  modify it under the terms of the GNU Lesser General Public
-  License as published by the Free Software Foundation; either
-  version 2.1 of the License, or (at your option) any later version.
-
-  This library is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-  Lesser General Public License for more details.
-
-  See the LICENSE file for more details.
-*/
-
 #include "mimecontentformatter.h"
 
-MimeContentFormatter::MimeContentFormatter(int max_length) :
-    max_length(max_length)
-{}
-
-QString MimeContentFormatter::format(const QString &content, bool quotedPrintable) const {
-
-    QString out;
-
-    int chars = 0;
-    for (int i = 0; i < content.length() ; ++i) {
-        chars++;
-        if (!quotedPrintable) {
-            if (chars > max_length) {
-                    out.append("\r\n");
-                    chars = 1;
-            }
-        }
-        else {
-            if (content[i] == '\n') {       // new line
-                out.append(content[i]);
-                chars = 0;
-                continue;
-            }
-
-            if ((chars > max_length - 1)
-                || ((content[i] == '=') && (chars > max_length - 3) )) {
-                out.append('=');
-                out.append("\r\n");
-                chars = 1;
-            }
-
-        }
-        out.append(content[i]);
-    }
-
-    return out;
-
+MimeContentFormatter::MimeContentFormatter(QIODevice *out, int length) :
+    output(out),
+    lineLength(length)
+{
+    QIODevice::open(WriteOnly);
 }
 
-void MimeContentFormatter::setMaxLength(int l) {
-    max_length = l;
+int MimeContentFormatter::getLineLength() const {
+    return lineLength;
 }
 
-int MimeContentFormatter::getMaxLength() const {
-    return max_length;
+void MimeContentFormatter::setLineLength(int l) {
+    lineLength = l;
+}
+
+qint64 MimeContentFormatter::readData(char*, qint64) {
+    return -1;
 }

src/mimecontentformatter.h

@@ -1,41 +1,24 @@
-/*
-  Copyright (c) 2011-2012 - Tőkés Attila
-
-  This file is part of SmtpClient for Qt.
-
-  This library is free software; you can redistribute it and/or
-  modify it under the terms of the GNU Lesser General Public
-  License as published by the Free Software Foundation; either
-  version 2.1 of the License, or (at your option) any later version.
-
-  This library is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-  Lesser General Public License for more details.
-
-  See the LICENSE file for more details.
-*/
-
 #ifndef MIMECONTENTFORMATTER_H
 #define MIMECONTENTFORMATTER_H
 
 #include <QObject>
-#include <QByteArray>
+#include <QIODevice>
 
-class MimeContentFormatter : public QObject
+class MimeContentFormatter : public QIODevice
 {
     Q_OBJECT
 public:
-    MimeContentFormatter (int max_length = 76);
+    MimeContentFormatter(QIODevice *device, int lineLength = 76);
 
-    void setMaxLength(int l);
-    int getMaxLength() const;
-
-    QString format(const QString &content, bool quotedPrintable = false) const;
+    int getLineLength() const;
+    void setLineLength(int l);
 
 protected:
-    int max_length;
+    qint64 readData(char *data, qint64 maxlen);
+    qint64 writeData(const char *data, qint64 len) = 0;
 
+    QIODevice *output;
+    int lineLength;
 };
 
 #endif // MIMECONTENTFORMATTER_H

src/mimefile.cpp

@@ -44,14 +44,15 @@ MimeFile::~MimeFile()
 
 /* [3] Protected methods */
 
-void MimeFile::prepare()
-{
+
+void MimeFile::writeContent(QIODevice &device) {
     file->open(QIODevice::ReadOnly);
     this->content = file->readAll();
     file->close();
 
-    /* !!! IMPORTANT !!!! */
-    MimePart::prepare();
+    MimePart::writeContent(device);
+
+    this->content.clear();
 }
 
 /* [3] --- */

src/mimefile.h

@@ -19,10 +19,11 @@
 #ifndef MIMEFILE_H
 #define MIMEFILE_H
 
-#include "mimepart.h"
 #include <QFile>
+#include "mimepart.h"
+#include "smtpmime_global.h"
 
-class MimeFile : public MimePart
+class SMTP_MIME_EXPORT MimeFile : public MimePart
 {
     Q_OBJECT
 public:
@@ -50,7 +51,8 @@ protected:
 
     /* [4] Protected methods */
 
-    virtual void prepare();
+    void writeContent(QIODevice &device);
+
 
     /* [4] --- */
 

src/mimehtml.cpp

@@ -48,10 +48,4 @@ const QString & MimeHtml::getHtml() const
 
 /* [3] Protected methods */
 
-void MimeHtml::prepare()
-{
-    /* !!! IMPORTANT !!! */
-    MimeText::prepare();
-}
-
 /* [3] --- */

src/mimehtml.h

@@ -19,9 +19,10 @@
 #ifndef MIMEHTML_H
 #define MIMEHTML_H
 
+#include "smtpmime_global.h"
 #include "mimetext.h"
 
-class MimeHtml : public MimeText
+class SMTP_MIME_EXPORT MimeHtml : public MimeText
 {
     Q_OBJECT
 public:
@@ -51,8 +52,6 @@ protected:
 
     /* [4] Protected methods */
 
-    virtual void prepare();
-
     /* [4] --- */
 };
 

src/mimeinlinefile.cpp

@@ -23,6 +23,7 @@
 MimeInlineFile::MimeInlineFile(QFile *f)
     : MimeFile(f)
 {
+    this->headerLines += "Content-Disposition: inline\r\n";
 }
 
 MimeInlineFile::~MimeInlineFile()
@@ -38,14 +39,6 @@ MimeInlineFile::~MimeInlineFile()
 
 /* [3] Protected methods */
 
-void MimeInlineFile::prepare()
-{       
-    this->header += "Content-Disposition: inline\r\n";
-
-    /* !!! IMPORTANT !!! */
-    MimeFile::prepare();
-}
-
 /* [3] --- */
 
 

src/mimeinlinefile.h

@@ -19,9 +19,10 @@
 #ifndef MIMEINLINEFILE_H
 #define MIMEINLINEFILE_H
 
+#include "smtpmime_global.h"
 #include "mimefile.h"
 
-class MimeInlineFile : public MimeFile
+class SMTP_MIME_EXPORT MimeInlineFile : public MimeFile
 {
 public:
 
@@ -46,8 +47,6 @@ protected:
 
     /* [4] Protected methods */
 
-    virtual void prepare();
-
     /* [4] --- */
 };
 

src/mimemessage.cpp

@@ -18,7 +18,9 @@
 
 #include "mimemessage.h"
 
+#include <QDebug>
 #include <QDateTime>
+#include <QBuffer>
 #include "quotedprintable.h"
 #include <typeinfo>
 
@@ -140,117 +142,87 @@ const QList<MimePart*> & MimeMessage::getParts() const
 
 QString MimeMessage::toString()
 {
-    QString mimeString;
-    QTextStream out(&mimeString);
-    writeToStream(out);
-    return mimeString;
+    QBuffer out;
+    out.open(QIODevice::WriteOnly);
+    writeToDevice(out);
+    return QString(out.buffer());
 }
 
-void MimeMessage::writeToStream(QTextStream &out) {
+QString MimeMessage::formatAddress(EmailAddress *address, MimePart::Encoding encoding) {
+    QString result;
+    if (address->getName() != "")
+    {
+        switch (encoding)
+        {
+        case MimePart::Base64:
+            result.append(" =?utf-8?B?" + QByteArray().append(address->getName()).toBase64() + "?=");
+            break;
+        case MimePart::QuotedPrintable:
+            result.append(" =?utf-8?Q?" + QuotedPrintable::encode(QByteArray().append(address->getName())).replace(' ', "_").replace(':',"=3A") + "?=");
+            break;
+        default:
+            result.append(" " + address->getName());
+        }
+    }
+    result.append(" <" + address->getAddress() + ">");
+    return result;
+}
+
+void MimeMessage::writeToDevice(QIODevice &out) {
     /* =========== MIME HEADER ============ */
 
     /* ---------- Sender / From ----------- */
-    out << "From:";
-    if (sender->getName() != "")
-    {
-        switch (hEncoding)
-        {
-        case MimePart::Base64:
-            out << " =?utf-8?B?" + QByteArray().append(sender->getName()).toBase64() + "?=";
-            break;
-        case MimePart::QuotedPrintable:
-            out << " =?utf-8?Q?" + QuotedPrintable::encode(QByteArray().append(sender->getName())).replace(' ', "_").replace(':',"=3A") + "?=";
-            break;
-        default:
-            out << " " + sender->getName();
-        }
-    }
-    out << " <" + sender->getAddress() + ">\r\n";
+    QString header;
+    header.append("From:" + formatAddress(sender, hEncoding) + "\r\n");
     /* ---------------------------------- */
 
     /* ------- Recipients / To ---------- */
-    out << "To:";
+    header.append("To:");
     QList<EmailAddress*>::iterator it;  int i;
     for (i = 0, it = recipientsTo.begin(); it != recipientsTo.end(); ++it, ++i)
     {
-        if (i != 0) { out << ","; }
-
-        if ((*it)->getName() != "")
-        {
-            switch (hEncoding)
-            {
-            case MimePart::Base64:
-                out << " =?utf-8?B?" + QByteArray().append((*it)->getName()).toBase64() + "?=";
-                break;
-            case MimePart::QuotedPrintable:
-                out << " =?utf-8?Q?" + QuotedPrintable::encode(QByteArray().append((*it)->getName())).replace(' ', "_").replace(':',"=3A") + "?=";
-                break;
-            default:
-                out << " " + (*it)->getName();
-            }
-        }
-        out << " <" + (*it)->getAddress() + ">";
+        if (i != 0) { header.append(","); }
+        header.append(formatAddress(*it, hEncoding));
     }
-    out << "\r\n";
+    header.append("\r\n");
     /* ---------------------------------- */
 
     /* ------- Recipients / Cc ---------- */
     if (recipientsCc.size() != 0) {
-        out << "Cc:";
+        header.append("Cc:");
     }
     for (i = 0, it = recipientsCc.begin(); it != recipientsCc.end(); ++it, ++i)
     {
-        if (i != 0) { out << ","; }
-
-        if ((*it)->getName() != "")
-        {
-            switch (hEncoding)
-            {
-            case MimePart::Base64:
-                out << " =?utf-8?B?" + QByteArray().append((*it)->getName()).toBase64() + "?=";
-                break;
-            case MimePart::QuotedPrintable:
-                out << " =?utf-8?Q?" + QuotedPrintable::encode(QByteArray().append((*it)->getName())).replace(' ', "_").replace(':',"=3A") + "?=";
-                break;
-            default:
-                out << " " + (*it)->getName();
-            }
-        }
-        out << " <" + (*it)->getAddress() + ">";
+        if (i != 0) { header.append(","); }
+        header.append(formatAddress(*it, hEncoding));
     }
     if (recipientsCc.size() != 0) {
-        out << "\r\n";
+        header.append("\r\n");
     }
     /* ---------------------------------- */
 
     /* ------------ Subject ------------- */
-    out << "Subject: ";
+    header.append("Subject: ");
 
 
     switch (hEncoding)
     {
     case MimePart::Base64:
-        out << "=?utf-8?B?" + QByteArray().append(subject).toBase64() + "?=";
+        header.append("=?utf-8?B?" + QByteArray().append(subject).toBase64() + "?=");
         break;
     case MimePart::QuotedPrintable:
-        out << "=?utf-8?Q?" + QuotedPrintable::encode(QByteArray().append(subject)).replace(' ', "_").replace(':',"=3A") + "?=";
+        header.append("=?utf-8?Q?" + QuotedPrintable::encode(QByteArray().append(subject)).replace(' ', "_").replace(':',"=3A") + "?=");
         break;
     default:
-        out << subject;
+        header.append(subject);
     }
     /* ---------------------------------- */
 
-    out << "\r\n";
-    out << "MIME-Version: 1.0\r\n";
+    header.append("\r\n");
+    header.append("MIME-Version: 1.0\r\n");
 
-    out << content->toString();
+    out.write(header.toAscii());
+    content->writeToDevice(out);
 }
 
-void MimeMessage::writeToDevice(QIODevice &device) {
-    QTextStream out (&device);
-    writeToStream(out);
-    out.flush();
-}
-
-
 /* [3] --- */

src/mimemessage.h

@@ -19,13 +19,15 @@
 #ifndef MIMEMESSAGE_H
 #define MIMEMESSAGE_H
 
-#include "mimepart.h"
-#include "mimemultipart.h"
-#include "emailaddress.h"
 #include <QList>
 #include <QTextStream>
 
-class MimeMessage : public QObject
+#include "smtpmime_global.h"
+#include "mimepart.h"
+#include "mimemultipart.h"
+#include "emailaddress.h"
+
+class SMTP_MIME_EXPORT MimeMessage : public QObject
 {
 public:
 
@@ -68,8 +70,7 @@ public:
     /* [3] Public methods */
 
     virtual QString toString();
-    virtual void writeToStream(QTextStream &stream);
-    virtual void writeToDevice(QIODevice &device);
+    void writeToDevice(QIODevice &device);
 
     /* [3] --- */
 
@@ -84,6 +85,8 @@ protected:
 
     MimePart::Encoding hEncoding;
 
+    static QString formatAddress(EmailAddress*, MimePart::Encoding);
+
     /* [4] --- */
 
 

src/mimemultipart.cpp

@@ -53,21 +53,23 @@ const QList<MimePart*> & MimeMultiPart::getParts() const {
     return parts;
 }
 
-void MimeMultiPart::prepare() {
+void MimeMultiPart::writeContent(QIODevice &device) {
     QList<MimePart*>::iterator it;
 
     content = "";
     for (it = parts.begin(); it != parts.end(); it++) {
-        content += "--" + cBoundary + "\r\n";
-        (*it)->prepare();
-        content += (*it)->toString();
+        device.write("--" );
+        device.write(cBoundary.toAscii());
+        device.write("\r\n");
+        (*it)->writeToDevice(device);
     };
 
-    content += "--" + cBoundary + "--\r\n";
-
-    MimePart::prepare();
+    device.write("--");
+    device.write(cBoundary.toAscii());
+    device.write("--\r\n");
 }
 
+
 void MimeMultiPart::setMimeType(const MultiPartType type) {
     this->type = type;
     this->cType = MULTI_PART_NAMES[type];

src/mimemultipart.h

@@ -19,9 +19,12 @@
 #ifndef MIMEMULTIPART_H
 #define MIMEMULTIPART_H
 
+#include <QList>
+#include <QTextStream>
+#include "smtpmime_global.h"
 #include "mimepart.h"
 
-class MimeMultiPart : public MimePart
+class SMTP_MIME_EXPORT MimeMultiPart : public MimePart
 {
     Q_OBJECT
 public:
@@ -59,7 +62,7 @@ public:
 
     void addPart(MimePart *part);
 
-    virtual void prepare();
+    void writeContent(QIODevice &device);
 
     /* [3] --- */
 

src/mimepart.cpp

@@ -16,8 +16,13 @@
   See the LICENSE file for more details.
 */
 
+#include <QBuffer>
 #include "mimepart.h"
 #include "quotedprintable.h"
+#include "mimebase64formatter.h"
+#include "mimeqpformatter.h"
+#include "mimebase64encoder.h"
+#include "mimeqpencoder.h"
 
 /* [1] Constructors and Destructors */
 
@@ -45,17 +50,17 @@ void MimePart::setContent(const QByteArray & content)
 
 void MimePart::setHeader(const QString & header)
 {
-    this->header = header;
+    this->headerLines = header;
 }
 
 void MimePart::addHeaderLine(const QString & line)
 {
-    this->header += line + "\r\n";
+    this->headerLines += line + "\r\n";
 }
 
 const QString& MimePart::getHeader() const
 {
-    return header;
+    return headerLines;
 }
 
 const QByteArray& MimePart::getContent() const
@@ -113,9 +118,12 @@ MimePart::Encoding MimePart::getEncoding() const
     return this->cEncoding;
 }
 
-MimeContentFormatter& MimePart::getContentFormatter()
-{
-    return this->formatter;
+void MimePart::setMaxLineLength(const int length) {
+    maxLineLength = length;
+}
+
+int MimePart::getMaxLineLength() const {
+    return maxLineLength;
 }
 
 /* [2] --- */
@@ -125,90 +133,91 @@ MimeContentFormatter& MimePart::getContentFormatter()
 
 QString MimePart::toString()
 {
-    if (!prepared)
-        prepare();
-
-    return mimeString;
+    QBuffer out;
+    out.open(QIODevice::WriteOnly);
+    writeToDevice(out);
+    return QString(out.buffer());
 }
 
-/* [3] --- */
-
-
-/* [4] Protected methods */
-
-void MimePart::prepare()
-{
-    mimeString = QString();
+void MimePart::writeToDevice(QIODevice &device) {
+    QString header;
 
     /* === Header Prepare === */
 
     /* Content-Type */
-    mimeString.append("Content-Type: ").append(cType);
+    header.append("Content-Type: ").append(cType);
 
     if (cName != "")
-        mimeString.append("; name=\"").append(cName).append("\"");
+        header.append("; name=\"").append(cName).append("\"");
 
     if (cCharset != "")
-        mimeString.append("; charset=").append(cCharset);
+        header.append("; charset=").append(cCharset);
 
     if (cBoundary != "")
-        mimeString.append("; boundary=").append(cBoundary);
+        header.append("; boundary=").append(cBoundary);
 
-    mimeString.append("\r\n");
+    header.append("\r\n");
     /* ------------ */
 
     /* Content-Transfer-Encoding */
-    mimeString.append("Content-Transfer-Encoding: ");
+    header.append("Content-Transfer-Encoding: ");
     switch (cEncoding)
     {
     case _7Bit:
-        mimeString.append("7bit\r\n");
+        header.append("7bit\r\n");
         break;
     case _8Bit:
-        mimeString.append("8bit\r\n");
+        header.append("8bit\r\n");
         break;
     case Base64:
-        mimeString.append("base64\r\n");
+        header.append("base64\r\n");
         break;
     case QuotedPrintable:
-        mimeString.append("quoted-printable\r\n");
+        header.append("quoted-printable\r\n");
         break;
     }
     /* ------------------------ */
 
     /* Content-Id */
     if (cId != NULL)
-        mimeString.append("Content-ID: <").append(cId).append(">\r\n");
+        header.append("Content-ID: <").append(cId).append(">\r\n");
     /* ---------- */
 
-    /* Addition header lines */
+    /* Additional header lines */
 
-    mimeString.append(header).append("\r\n");
+    header.append(headerLines).append("\r\n");
 
     /* ------------------------- */
 
     /* === End of Header Prepare === */
 
-    /* === Content === */
+    device.write(header.toAscii());
+
+    writeContent(device);
+}
+
+
+
+/* [3] --- */
+
+
+/* [4] Protected methods */
+
+void MimePart::writeContent(QIODevice &device) {
     switch (cEncoding)
     {
     case _7Bit:
-        mimeString.append(QString(content).toAscii());
-        break;
     case _8Bit:
-        mimeString.append(content);
+        device.write(content);
         break;
     case Base64:
-        mimeString.append(formatter.format(content.toBase64()));
+        MimeBase64Formatter(&device).write(MimeBase64Encoder().encode(content));
         break;
     case QuotedPrintable:
-        mimeString.append(formatter.format(QuotedPrintable::encode(content), true));
+        MimeQPFormatter(&device).write(MimeQpEncoder().encode(content));
         break;
     }
-    mimeString.append("\r\n");
-    /* === End of Content === */
-
-    prepared = true;
+    device.write("\r\n");
 }
 
 /* [4] --- */

src/mimepart.h

@@ -20,9 +20,10 @@
 #define MIMEPART_H
 
 #include <QObject>
-#include "mimecontentformatter.h"
+#include <QTextStream>
+#include "smtpmime_global.h"
 
-class MimePart : public QObject
+class SMTP_MIME_EXPORT MimePart : public QObject
 {
     Q_OBJECT
 public:
@@ -53,7 +54,7 @@ public:
     const QByteArray& getContent() const;
 
     void setContent(const QByteArray & content);
-    void setHeader(const QString & header);
+    void setHeader(const QString & headerLines);
 
     void addHeaderLine(const QString & line);
 
@@ -72,7 +73,8 @@ public:
     void setEncoding(Encoding enc);
     Encoding getEncoding() const;
 
-    MimeContentFormatter& getContentFormatter();
+    void setMaxLineLength(const int length);
+    int getMaxLineLength() const;
 
     /* [2] --- */
 
@@ -80,18 +82,15 @@ public:
     /* [3] Public methods */
 
     virtual QString toString();
-
-    virtual void prepare();
+    void writeToDevice(QIODevice &device);
 
     /* [3] --- */
 
-
-
 protected:
 
     /* [4] Protected members */
 
-    QString header;
+    QString headerLines;
     QByteArray content;
 
     QString cId;
@@ -101,12 +100,14 @@ protected:
     QString cBoundary;
     Encoding cEncoding;
 
+    int maxLineLength;
+
     QString mimeString;
     bool prepared;
 
-    MimeContentFormatter formatter;
-
     /* [4] --- */
+
+    virtual void writeContent(QIODevice &device);
 };
 
 #endif // MIMEPART_H

src/mimeqpencoder.cpp

@@ -0,0 +1,8 @@
+#include "mimeqpencoder.h"
+#include "quotedprintable.h"
+
+MimeQpEncoder::MimeQpEncoder() {}
+
+QByteArray MimeQpEncoder::encode(const QByteArray &data) {
+    return QuotedPrintable::encode(data).toAscii();
+}

src/mimeqpencoder.h

@@ -0,0 +1,14 @@
+#ifndef MIMEQPENCODER_H
+#define MIMEQPENCODER_H
+
+#include "mimecontentencoder.h"
+
+class MimeQpEncoder : public MimeContentEncoder
+{
+public:
+    MimeQpEncoder();
+
+    QByteArray encode(const QByteArray &data);
+};
+
+#endif // MIMEQPENCODER_H

src/mimeqpformatter.cpp

@@ -0,0 +1,29 @@
+#include "mimeqpformatter.h"
+
+MimeQPFormatter::MimeQPFormatter(QIODevice *output) :
+    MimeContentFormatter(output) {}
+
+qint64 MimeQPFormatter::writeData(const char *data, qint64 maxLength) {
+    int chars = 0;
+    const char *start = data;
+    for (int i = 0; i < maxLength; ++i) {
+        chars++;
+        if (data[i] == '\n') {
+            output->write(start, chars);
+            start += chars;
+            chars = 0;
+        } else if ((chars > lineLength - 3) && (data[i] == '=')) {
+            output->write(start, chars - 1);
+            output->write("=\r\n=");
+            start += chars;
+            chars = 0;
+        } else if (chars == lineLength - 1) {
+            output->write(start, chars);
+            output->write("=\r\n");
+            start += chars;
+            chars = 0;
+        }
+    }
+    output->write(start, chars);
+    return maxLength;
+}

src/mimeqpformatter.h

@@ -0,0 +1,15 @@
+#ifndef MIMEQPFORMATTER_H
+#define MIMEQPFORMATTER_H
+
+#include "mimecontentformatter.h"
+
+class MimeQPFormatter : public MimeContentFormatter
+{
+public:
+    MimeQPFormatter(QIODevice*);
+
+protected:
+    virtual qint64 writeData(const char *data, qint64 len);
+};
+
+#endif // MIMEQPFORMATTER_H

src/mimetext.cpp

@@ -50,13 +50,9 @@ const QString & MimeText::getText() const
 
 /* [3] Protected Methods */
 
-void MimeText::prepare()
-{
-    this->content.clear();
-    this->content.append(text);
-
-    /* !!! IMPORTANT !!! */
-    MimePart::prepare();
+void MimeText::writeContent(QIODevice &device) {
+    this->content = text.toAscii();
+    MimePart::writeContent(device);
 }
 
 /* [3] --- */

src/mimetext.h

@@ -19,9 +19,10 @@
 #ifndef MIMETEXT_H
 #define MIMETEXT_H
 
+#include "smtpmime_global.h"
 #include "mimepart.h"
 
-class MimeText : public MimePart
+class SMTP_MIME_EXPORT MimeText : public MimePart
 {
 public:
 
@@ -51,7 +52,7 @@ protected:
 
     /* [4] Protected methods */
 
-    void prepare();
+    void writeContent(QIODevice &device);
 
     /* [4] --- */
 

src/quotedprintable.cpp

@@ -29,12 +29,10 @@ QString& QuotedPrintable::encode(const QByteArray &input)
     {
         byte = input[i];
 
-        if ((byte == 0x20) || (byte >= 33) && (byte <= 126) && (byte != 61))
-        {
+        if ((byte == 0x20) || (byte >= 33) && (byte <= 126) && (byte != 61)) {
             output->append(byte);
         }
-        else
-        {
+        else {
             output->append('=');
             output->append(hex[((byte >> 4) & 0x0F)]);
             output->append(hex[(byte & 0x0F)]);

src/quotedprintable.h

@@ -21,8 +21,9 @@
 
 #include <QObject>
 #include <QByteArray>
+#include "smtpmime_global.h"
 
-class QuotedPrintable : public QObject
+class SMTP_MIME_EXPORT QuotedPrintable : public QObject
 {
     Q_OBJECT
 public:

src/smtpclient.cpp

@@ -182,6 +182,7 @@ bool SmtpClient::login(const QString &user, const QString &password, AuthMethod
 bool SmtpClient::sendMail(MimeMessage& email)
 {
     this->email = &email;
+    this->rcptType = 0;
     changeState(MailSendingState);
 
     return true;
@@ -238,10 +239,10 @@ void SmtpClient::changeState(ClientState state) {
     }
 #else
     // emit all in debug mode
+    qDebug() << "State:" << state;
     emit stateChanged(state);
 #endif
 
-
     switch (state)
     {
     case ConnectingState:
@@ -373,8 +374,8 @@ void SmtpClient::changeState(ClientState state) {
         break;
 
     case _MAIL_4_SEND_DATA:
-        sendMessage(email->toString());
-        sendMessage(".");
+        email->writeToDevice(*socket);
+        sendMessage("\r\n.");
         break;
 
     case _READY_MailSent:
@@ -528,6 +529,9 @@ void SmtpClient::socketStateChanged(QAbstractSocket::SocketState state) {
 }
 
 void SmtpClient::socketError(QAbstractSocket::SocketError socketError) {
+#ifndef QT_NO_DEBUG
+    qDebug() << "SocketError:" << socketError << socket->error();
+#endif
     emit error(SocketError);
 }
 
@@ -538,7 +542,13 @@ void SmtpClient::socketReadyRead()
     while (socket->canReadLine()) {
         // Save the server's response
         responseLine = socket->readLine();
-        tempResponse += responseLine;
+        tempResponse += responseLine;       
+    }
+
+    // Is this the last line of the response
+    if (responseLine[3] == ' ') {
+        responseText = tempResponse;
+        tempResponse = "";
 
         // Extract the respose code from the server's responce (first 3 digits)
         responseCode = responseLine.left(3).toInt();
@@ -554,13 +564,8 @@ void SmtpClient::socketReadyRead()
             emit error(ClientError);
             return;
         }
-    }
 
-    // Is this the last line of the response
-    if (responseLine[3] == ' ') {
-        responseText = tempResponse;
         processResponse();
-
     }
 }
 

src/smtpclient.h

@@ -22,11 +22,11 @@
 #include <QObject>
 #include <QtNetwork/QSslSocket>
 #include <QEventLoop>
-
+#include "smtpmime_global.h"
 #include "mimemessage.h"
 
 
-class SmtpClient : public QObject
+class SMTP_MIME_EXPORT SmtpClient : public QObject
 {
     Q_OBJECT
 public:
@@ -52,9 +52,9 @@ public:
 
     enum ConnectionType
     {
-        TcpConnection,
-        SslConnection,
-        TlsConnection       // STARTTLS
+        TcpConnection = 0,
+        SslConnection = 1,
+        TlsConnection = 2      // STARTTLS
     };
 
     enum ClientState {
@@ -136,7 +136,6 @@ public:
 
     QTcpSocket* getSocket();
 
-
     /* [2] --- */
 
 

src/smtpmime_global.h

@@ -0,0 +1,10 @@
+#ifndef SMTPMIME_GLOBAL_H
+#define SMTPMIME_GLOBAL_H
+
+#ifdef SMTP_MIME_LIBRARY
+#define SMTP_MIME_EXPORT Q_DECL_EXPORT
+#else
+#define SMTP_MIME_EXPORT Q_DECL_IMPORT
+#endif
+
+#endif // SMTPMIME_GLOBAL_H

test/connectiontest.cpp

@@ -0,0 +1,55 @@
+#include "connectiontest.h"
+#include <QDebug>
+#include <QtTest/QtTest>
+#include "../src/smtpclient.h"
+
+ConnectionTest::ConnectionTest(QObject *parent) :
+    QObject(parent) {}
+
+
+void ConnectionTest::init() {
+    //qDebug() << "Init...";
+}
+
+void ConnectionTest::testConnect() {
+    QFETCH(QString, host);
+    QFETCH(int, port);
+    QFETCH(int, connectionType);
+
+    const SmtpClient::ConnectionType cTypes[] = {
+        SmtpClient::TcpConnection,
+        SmtpClient::SslConnection,
+        SmtpClient::TcpConnection
+    };
+
+    SmtpClient::ConnectionType cType = cTypes[--connectionType];
+
+    SmtpClient smtp(host, port, cType);
+    smtp.connectToHost();
+
+    QCOMPARE(smtp.waitForReadyConnected(5000), true);
+}
+
+void ConnectionTest::testConnect_data() {
+    QTest::addColumn<QString>("host");
+    QTest::addColumn<int>("port");
+    QTest::addColumn<int>("connectionType");
+
+    QFile file("../connect_data.txt");
+    file.open(QIODevice::ReadOnly);
+    QTextStream in(&file);
+
+    while (!in.atEnd()) {
+        QString host;
+        int port;
+        int connectionType;
+        in >> host >> port >> connectionType;
+        if (!host.isEmpty()) {
+            QTest::newRow(QString("%1:%2").arg(host).arg(port).toLocal8Bit().data()) << host << port << connectionType;
+        }
+    }
+    file.close();
+}
+
+void ConnectionTest::cleanup() {
+}

test/connectiontest.h

@@ -0,0 +1,21 @@
+#ifndef CONNECTIONTEST_H
+#define CONNECTIONTEST_H
+
+#include <QObject>
+
+class ConnectionTest : public QObject
+{
+    Q_OBJECT
+public:
+    ConnectionTest(QObject *parent = 0);
+    
+private slots:
+
+    void init();
+    void cleanup();
+
+    void testConnect();
+    void testConnect_data();
+};
+
+#endif // CONNECTIONTEST_H

test/main.cpp

@@ -0,0 +1,26 @@
+#include <QtGui/QApplication>
+#include <QCoreApplication>
+#include <QtTest/QTest>
+#include <QDebug>
+#include "connectiontest.h"
+
+bool success = true;
+
+void runTest(QObject *test) {
+    int retVal = QTest::qExec(test);
+    success &= retVal == 0;
+}
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+
+    runTest(new ConnectionTest());
+
+    if (success)
+        qDebug() << "SUCCESS";
+    else
+        qDebug() << "FAIL";
+
+    return success;
+}

test/test.pro

@@ -0,0 +1,27 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2012-09-22T16:39:45
+#
+#-------------------------------------------------
+
+QT       += testlib gui
+
+TARGET = test
+CONFIG   += console
+CONFIG   -= app_bundle
+
+TEMPLATE = app
+
+
+SOURCES += main.cpp \
+    connectiontest.cpp
+
+HEADERS += \
+    connectiontest.h
+
+win32:CONFIG(release, debug|release): LIBS += -L$$PWD/../bin/lib/release/ -lSmtpMime
+else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/../bin/lib/debug/ -lSmtpMime
+else:unix:!symbian: LIBS += -L$$PWD/../bin/lib/release/ -lSmtpMime
+
+INCLUDEPATH += $$PWD/../bin/lib/release
+DEPENDPATH += $$PWD/../bin/lib/release