Adding support to send attachments to the remote device.

cli/kdeconnect-cli.cpp

@@ -53,6 +53,7 @@ int main(int argc, char** argv)
     parser.addOption(QCommandLineOption(QStringLiteral("lock"), i18n("Lock the specified device")));
     parser.addOption(QCommandLineOption(QStringLiteral("send-sms"), i18n("Sends an SMS. Requires destination"), i18n("message")));
     parser.addOption(QCommandLineOption(QStringLiteral("destination"), i18n("Phone number to send the message"), i18n("phone number")));
+    parser.addOption(QCommandLineOption(QStringLiteral("attachment"), i18n("File urls to send attachments with the message"), i18n("file urls")));
     parser.addOption(QCommandLineOption(QStringList(QStringLiteral("device")) << QStringLiteral("d"), i18n("Device ID"), QStringLiteral("dev")));
     parser.addOption(QCommandLineOption(QStringList(QStringLiteral("name")) << QStringLiteral("n"), i18n("Device Name"), QStringLiteral("name")));
     parser.addOption(QCommandLineOption(QStringLiteral("encryption-info"), i18n("Get encryption info about said device")));
@@ -258,9 +259,11 @@ int main(int argc, char** argv)
                     addresses << QVariant::fromValue(address);
                 }
 
+                const QStringList urlList = parser.value(QStringLiteral("attachment")).split(QRegularExpression(QStringLiteral("\\s+")));
+
                 QDBusMessage msg = QDBusMessage::createMethodCall(QStringLiteral("org.kde.kdeconnect"), QStringLiteral("/modules/kdeconnect/devices/") + device + QStringLiteral("/sms"), QStringLiteral("org.kde.kdeconnect.device.sms"), QStringLiteral("sendSms"));
                 const QString text = parser.value(QStringLiteral("send-sms"));
-                msg.setArguments(QVariantList() << QVariant::fromValue(addresses) << text);
+                msg.setArguments(QVariantList() << QVariant::fromValue(addresses) << text << QVariant(urlList));
                 blockOnReply(DBusHelper::sessionBus().asyncCall(msg));
             } else {
                 QTextStream(stderr) << i18n("error: should specify the SMS's recipient by passing --destination <phone number>");

interfaces/conversationmessage.cpp

@@ -72,6 +72,15 @@ ConversationAddress::ConversationAddress(QString address)
     : m_address(address)
 {}
 
+bool ConversationMessage::isOutgoing() const
+{
+    return type() == MessageTypeSent
+               || type() == MessageTypeOutbox
+               || type() == MessageTypeDraft
+               || type() == MessageTypeFailed
+               || type() == MessageTypeQueued;
+}
+
 Attachment::Attachment(qint64 partID, QString mimeType, QString base64EncodedFile, QString uniqueIdentifier)
     : m_partID(partID)
     , m_mimeType(mimeType)

interfaces/conversationmessage.h

@@ -69,7 +69,7 @@ public:
     bool isMultitarget() const { return (eventField() & ConversationMessage::EventMultiTarget); }
 
     bool isIncoming() const { return type() == MessageTypeInbox; }
-    bool isOutgoing() const { return type() == MessageTypeSent; }
+    bool isOutgoing() const;
     bool containsAttachment() const { return !attachments().isEmpty(); }
 
     /**

plugins/sms/conversationsdbusinterface.cpp

@@ -177,7 +177,7 @@ void ConversationsDbusInterface::updateConversation(const qint64& conversationID
     waitingForMessagesLock.unlock();
 }
 
-void ConversationsDbusInterface::replyToConversation(const qint64& conversationID, const QString& message)
+void ConversationsDbusInterface::replyToConversation(const qint64& conversationID, const QString& message, const QVariantList& attachmentUrls)
 {
     const auto messagesList = m_conversations[conversationID];
     if (messagesList.isEmpty()) {
@@ -192,11 +192,11 @@ void ConversationsDbusInterface::replyToConversation(const qint64& conversationI
         addresses << QVariant::fromValue(address);
     }
 
-    m_smsInterface.sendSms(addresses, message, messagesList.first().subID());
+    m_smsInterface.sendSms(addresses, message, attachmentUrls, messagesList.first().subID());
 }
 
-void ConversationsDbusInterface::sendWithoutConversation(const QVariantList& addresses, const QString& message) {
+void ConversationsDbusInterface::sendWithoutConversation(const QVariantList& addresses, const QString& message, const QVariantList& attachmentUrls) {
-    m_smsInterface.sendSms(addresses, message);
+    m_smsInterface.sendSms(addresses, message, attachmentUrls);
 }
 
 void ConversationsDbusInterface::requestAllConversationThreads()

plugins/sms/conversationsdbusinterface.h

@@ -77,12 +77,12 @@ public Q_SLOTS:
     /**
      * Send a new message to this conversation
      */
-    void replyToConversation(const qint64& conversationID, const QString& message);
+    void replyToConversation(const qint64& conversationID, const QString& message, const QVariantList& attachmentUrls);
 
     /**
      * Send a new message to the contact having no previous coversation with
      */
-    void sendWithoutConversation(const QVariantList& addressList, const QString& message);
+    void sendWithoutConversation(const QVariantList& addressList, const QString& message, const QVariantList& attachmentUrls);
 
     /**
      * Send the request to the Telephony plugin to update the list of conversation threads

plugins/sms/smsplugin.cpp

@@ -13,6 +13,10 @@
 #include <QDebug>
 #include <QDBusConnection>
 #include <QProcess>
+#include <QFile>
+#include <QFileInfo>
+#include <QMimeDatabase>
+#include <QTextCodec>
 
 #include <core/device.h>
 #include <core/daemon.h>
@@ -27,6 +31,7 @@ SmsPlugin::SmsPlugin(QObject* parent, const QVariantList& args)
     , m_telepathyInterface(QStringLiteral("org.freedesktop.Telepathy.ConnectionManager.kdeconnect"), QStringLiteral("/kdeconnect"))
     , m_conversationInterface(new ConversationsDbusInterface(this))
 {
+    m_codec = QTextCodec::codecForName(CODEC_NAME);
 }
 
 SmsPlugin::~SmsPlugin()
@@ -47,7 +52,7 @@ bool SmsPlugin::receivePacket(const NetworkPacket& np)
     return true;
 }
 
-void SmsPlugin::sendSms(const QVariantList& addresses, const QString& messageBody, const qint64 subID)
+void SmsPlugin::sendSms(const QVariantList& addresses, const QString& textMessage, const QVariantList& attachmentUrls, const qint64 subID)
 {
     QVariantList addressMapList;
     for (const QVariant& address : addresses) {
@@ -56,13 +61,35 @@ void SmsPlugin::sendSms(const QVariantList& addresses, const QString& messageBod
     }
 
     QVariantMap packetMap({
-        {QStringLiteral("sendSms"), true},
+        {QStringLiteral("version"), 2},
-        {QStringLiteral("addresses"), addressMapList},
+        {QStringLiteral("addresses"), addressMapList}
-        {QStringLiteral("messageBody"), messageBody}
     });
+
+    // If there is any text message add it to the network packet
+    if (textMessage != QStringLiteral("")) {
+        packetMap[QStringLiteral("textMessage")] = textMessage;
+    }
+
     if (subID != -1) {
         packetMap[QStringLiteral("subID")] = subID;
     }
+
+    QVariantList attachmentMapList;
+    for (const QVariant& attachmentUrl : attachmentUrls) {
+        const Attachment attachment = createAttachmentFromUrl(attachmentUrl.toString());
+        QVariantMap attachmentMap({
+            {QStringLiteral("fileName"), attachment.uniqueIdentifier()},
+            {QStringLiteral("base64EncodedFile"), attachment.base64EncodedFile()},
+            {QStringLiteral("mimeType"), attachment.mimeType()}
+        });
+        attachmentMapList.append(attachmentMap);
+    }
+
+    // If there is any attachment add it to the network packet
+    if (!attachmentMapList.isEmpty()) {
+        packetMap[QStringLiteral("attachments")] = attachmentMapList;
+    }
+
     NetworkPacket np(PACKET_TYPE_SMS_REQUEST, packetMap);
     qCDebug(KDECONNECT_PLUGIN_SMS) << "Dispatching SMS send request to remote";
     sendPacket(np);
@@ -185,6 +212,30 @@ void SmsPlugin::getAttachment(const qint64& partID, const QString& uniqueIdentif
     }
 }
 
+Attachment SmsPlugin::createAttachmentFromUrl(const QString& url)
+{
+    QFile file(url);
+    file.open(QIODevice::ReadOnly);
+
+    if (!file.exists()) {
+        return Attachment();
+    }
+
+    QFileInfo fileInfo(file);
+    QString fileName(fileInfo.fileName());
+
+    QByteArray byteArray = file.readAll().toBase64();
+    file.close();
+
+    QString base64EncodedFile = m_codec->toUnicode(byteArray);
+
+    QMimeDatabase mimeDatabase;
+    QString mimeType = mimeDatabase.mimeTypeForFile(url).name();
+
+    Attachment attachment(-1, mimeType, base64EncodedFile, fileName);
+    return attachment;
+}
+
 
 QString SmsPlugin::dbusPath() const
 {

plugins/sms/smsplugin.h

@@ -75,15 +75,21 @@
 /**
  * Packet sent to request a message be sent
  *
- * This will almost certainly need to be replaced or augmented to support MMS,
- * but be sure the Android side remains compatible with old desktop apps!
- *
  * The body should look like so:
- * { "sendSms": true,
+ * { "version": 2,
  *   "addresses": <List of Addresses>
- *   "messageBody": "Hi mom!",
+ *   "textMessage": "Hi mom!",
+ *   "attachments": <List of Attached files>
  *   "sub_id": "3859358340534"
  * }
+ *
+ * An AttachmentContainer object looks like:
+ * {
+ *   "fileName": <String>             // Name of the file
+ *   "base64EncodedFile": <String>    // Base64 encoded file
+ *   "mimeType": <String>             // File type (eg: image/jpg, video/mp4 etc.)
+ * }
+ *
  */
 #define PACKET_TYPE_SMS_REQUEST QStringLiteral("kdeconnect.sms.request")
 
@@ -123,6 +129,10 @@
 
 Q_DECLARE_LOGGING_CATEGORY(KDECONNECT_PLUGIN_SMS)
 
+#define CODEC_NAME "CP1251"
+
+class QTextCodec;
+
 class Q_DECL_EXPORT SmsPlugin
     : public KdeConnectPlugin
 {
@@ -139,7 +149,7 @@ public:
     QString dbusPath() const override;
 
 public Q_SLOTS:
-    Q_SCRIPTABLE void sendSms(const QVariantList& addresses, const QString& messageBody, const qint64 subID = -1);
+    Q_SCRIPTABLE void sendSms(const QVariantList& addresses, const QString& textMessage, const QVariantList& attachmentUrls, const qint64 subID = -1);
 
     /**
      * Send a request to the remote for all of its conversations
@@ -183,8 +193,14 @@ private:
      */
     bool handleSmsAttachmentFile(const NetworkPacket& np);
 
+    /**
+     * Encode a local file so it can be sent to the remote device as part of an MMS message.
+     */
+    Attachment createAttachmentFromUrl(const QString& url);
+
     QDBusInterface m_telepathyInterface;
     ConversationsDbusInterface* m_conversationInterface;
+    QTextCodec *m_codec;
 };
 
 #endif

smsapp/conversationmodel.cpp

@@ -86,13 +86,18 @@ void ConversationModel::setAddressList(const QList<ConversationAddress>& address
     m_addressList = addressList;
 }
 
-void ConversationModel::sendReplyToConversation(const QString& message)
+bool ConversationModel::sendReplyToConversation(const QString& textMessage, QList<QUrl> attachmentUrls)
 {
-    //qCDebug(KDECONNECT_SMS_CONVERSATION_MODEL) << "Trying to send" << message << "to conversation with ID" << m_threadId;
+    QVariantList fileUrls;
-    m_conversationsInterface->replyToConversation(m_threadId, message);
+    for (const auto& url : attachmentUrls) {
+        fileUrls << QVariant::fromValue(url.toLocalFile());
+    }
+
+    m_conversationsInterface->replyToConversation(m_threadId, textMessage, fileUrls);
+    return true;
 }
 
-void ConversationModel::startNewConversation(const QString& message, const QList<ConversationAddress>& addressList)
+bool ConversationModel::startNewConversation(const QString& textMessage, const QList<ConversationAddress>& addressList, QList<QUrl> attachmentUrls)
 {
     QVariantList addresses;
 
@@ -100,7 +105,13 @@ void ConversationModel::startNewConversation(const QString& message, const QList
         addresses << QVariant::fromValue(address);
     }
 
-    m_conversationsInterface->sendWithoutConversation(addresses, message);
+    QVariantList fileUrls;
+    for (const auto& url : attachmentUrls) {
+        fileUrls << QVariant::fromValue(url.toLocalFile());
+    }
+
+    m_conversationsInterface->sendWithoutConversation(addresses, textMessage, fileUrls);
+    return true;
 }
 
 void ConversationModel::requestMoreMessages(const quint32& howMany)

smsapp/conversationmodel.h

@@ -48,8 +48,8 @@ public:
     QList<ConversationAddress> addressList() const { return m_addressList; }
     void setAddressList(const QList<ConversationAddress>& addressList);
 
-    Q_INVOKABLE void sendReplyToConversation(const QString& message);
+    Q_INVOKABLE bool sendReplyToConversation(const QString& textMessage, QList<QUrl> attachmentUrls);
-    Q_INVOKABLE void startNewConversation(const QString& message, const QList<ConversationAddress>& addressList);
+    Q_INVOKABLE bool startNewConversation(const QString& textMessage, const QList<ConversationAddress>& addressList, QList<QUrl> attachmentUrls);
     Q_INVOKABLE void requestMoreMessages(const quint32& howMany = 10);
 
     Q_INVOKABLE QString getCharCountInfo(const QString& message) const;

smsapp/qml/ConversationDisplay.qml

@@ -168,102 +168,8 @@ Kirigami.ScrollablePage
         }
     }
 
-    footer: Controls.Pane {
+    footer: SendingArea {
-        id: sendingArea
+        width: parent.width
-        enabled: page.deviceConnected
+        addresses: page.addresses
-        layer.enabled: sendingArea.enabled
-        layer.effect: DropShadow {
-            verticalOffset: 1
-            color: Kirigami.Theme.disabledTextColor
-            samples: 20
-            spread: 0.3
-        }
-        Layout.fillWidth: true
-        padding: 0
-        wheelEnabled: true
-        background: Rectangle {
-            color: Kirigami.Theme.viewBackgroundColor
-        }
-
-        RowLayout {
-            anchors.fill: parent
-
-            Controls.ScrollView {
-                Layout.fillWidth: true
-                Layout.maximumHeight: page.height > 300 ? page.height / 3 : 2 * page.height / 3
-                contentWidth: page.width - sendButtonArea.width
-                clip: true
-                Controls.ScrollBar.horizontal.policy: Controls.ScrollBar.AlwaysOff
-
-                Controls.TextArea {
-                    anchors.fill: parent
-                    id: messageField
-                    placeholderText: i18nd("kdeconnect-sms", "Compose message")
-                    wrapMode: TextEdit.Wrap
-                    topPadding: Kirigami.Units.gridUnit * 0.5
-                    bottomPadding: topPadding
-                    selectByMouse: true
-                    topInset: height * 2 // This removes background (frame) of the TextArea. Setting `background: Item {}` would cause segfault.
-                    Keys.onReturnPressed: {
-                        if (event.key === Qt.Key_Return) {
-                            if (event.modifiers & Qt.ShiftModifier) {
-                                messageField.append("")
-                            } else {
-                                sendButton.onClicked()
-                                event.accepted = true
-                            }
-                        }
-                    }
-                }
-            }
-
-            ColumnLayout {
-                id: sendButtonArea
-
-                Controls.ToolButton {
-                    id: sendButton
-                    Layout.preferredWidth: Kirigami.Units.gridUnit * 2
-                    Layout.preferredHeight: Kirigami.Units.gridUnit * 2
-                    padding: 0
-                    Kirigami.Icon {
-                        source: "document-send"
-                        enabled: sendButton.enabled
-                        isMask: true
-                        smooth: true
-                        anchors.centerIn: parent
-                        width: Kirigami.Units.gridUnit * 1.5
-                        height: width
-                    }
-                    onClicked: {
-                        // don't send empty messages
-                        if (!messageField.text.length) {
-                            return
-                        }
-
-                        // disable the button to prevent sending
-                        // the same message several times
-                        sendButton.enabled = false
-
-                        // send the message
-                        if (page.conversationId == page.invalidId) {
-                            conversationModel.startNewConversation(messageField.text, addresses)
-                        } else {
-                            conversationModel.sendReplyToConversation(messageField.text)
-                        }
-                        messageField.text = ""
-
-                        // re-enable the button
-                        sendButton.enabled = true
-                    }
-                }
-
-                Controls.Label {
-                    id: "charCount"
-                    text: conversationModel.getCharCountInfo(messageField.text)
-                    visible: text.length > 0
-                    Layout.minimumWidth: Math.max(Layout.minimumWidth, width) // Make this label only grow, never shrink
-                }
-            }
-        }
     }
 }

smsapp/qml/SendingArea.qml

@@ -0,0 +1,208 @@
+/**
+ * Copyright (C) 2020 Aniket Kumar <anikketkumar786@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License or (at your option) version 3 or any later version
+ * accepted by the membership of KDE e.V. (or its successor approved
+ * by the membership of KDE e.V.), which shall act as a proxy
+ * defined in Section 14 of version 3 of the license.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import QtQuick 2.1
+import QtQuick.Controls 2.2 as Controls
+import QtQuick.Layouts 1.1
+import org.kde.kirigami 2.4 as Kirigami
+import QtGraphicalEffects 1.0
+import QtQuick.Dialogs 1.1
+import org.kde.kdeconnect.sms 1.0
+
+ColumnLayout {
+    id: root
+    property var addresses
+    property var selectedFileUrls: []
+    readonly property int maxMessageSize: 600000
+
+    MessageDialog {
+        id: messageDialog
+        title: i18nd("kdeconnect-sms", "Failed to send")
+        text: i18nd("kdeconnect-sms", "Max message size limit exceeded.")
+
+        onAccepted: {
+            messageDialog.close()
+        }
+    }
+
+    FileDialog {
+        id: fileDialog
+        folder: shortcuts.home
+        selectMultiple: true
+
+        onAccepted: {
+            root.selectedFileUrls = fileDialog.fileUrls
+            fileDialog.close()
+        }
+    }
+
+    Controls.Pane {
+        id: sendingArea
+        enabled: page.deviceConnected
+        layer.enabled: sendingArea.enabled
+        layer.effect: DropShadow {
+            verticalOffset: 1
+            color: Kirigami.Theme.disabledTextColor
+            samples: 20
+            spread: 0.3
+        }
+        Layout.fillWidth: true
+        padding: 0
+        wheelEnabled: true
+        background: Rectangle {
+            color: Kirigami.Theme.viewBackgroundColor
+        }
+
+        RowLayout {
+            anchors.fill: parent
+
+            Controls.ScrollView {
+                Layout.fillWidth: true
+                Layout.maximumHeight: page.height > 300 ? page.height / 3 : 2 * page.height / 3
+                contentWidth: page.width - sendButtonArea.width
+                clip: true
+                Controls.ScrollBar.horizontal.policy: Controls.ScrollBar.AlwaysOff
+
+                Controls.TextArea {
+                    anchors.fill: parent
+                    id: messageField
+                    placeholderText: i18nd("kdeconnect-sms", "Compose message")
+                    wrapMode: TextEdit.Wrap
+                    topPadding: Kirigami.Units.gridUnit * 0.5
+                    bottomPadding: topPadding
+                    selectByMouse: true
+                    topInset: height * 2 // This removes background (frame) of the TextArea. Setting `background: Item {}` would cause segfault.
+                    Keys.onReturnPressed: {
+                        if (event.key === Qt.Key_Return) {
+                            if (event.modifiers & Qt.ShiftModifier) {
+                                messageField.append("")
+                            } else {
+                                sendButton.onClicked()
+                                event.accepted = true
+                            }
+                        }
+                    }
+                }
+            }
+
+            ColumnLayout {
+                id: sendButtonArea
+
+                RowLayout {
+                    Controls.ToolButton {
+                        id: sendButton
+                        enabled: messageField.text.length || selectedFileUrls.length
+                        Layout.preferredWidth: Kirigami.Units.gridUnit * 2
+                        Layout.preferredHeight: Kirigami.Units.gridUnit * 2
+                        padding: 0
+                        Kirigami.Icon {
+                            source: "document-send"
+                            enabled: sendButton.enabled
+                            isMask: true
+                            smooth: true
+                            anchors.centerIn: parent
+                            width: Kirigami.Units.gridUnit * 1.5
+                            height: width
+                        }
+
+                        property bool messageSent: false
+
+                        onClicked: {
+                            // disable the button to prevent sending
+                            // the same message several times
+                            sendButton.enabled = false
+
+                            if (SmsHelper.totalMessageSize(selectedFileUrls, messageField.text) > maxMessageSize) {
+                                messageDialog.visible = true
+                            } else if (page.conversationId === page.invalidId) {
+                                messageSent = conversationModel.startNewConversation(messageField.text, addresses, selectedFileUrls)
+                            } else {
+                                messageSent = conversationModel.sendReplyToConversation(messageField.text, selectedFileUrls)
+                            }
+
+                            if (messageSent) {
+                                messageField.text = ""
+                                selectedFileUrls = []
+                                sendButton.enabled = false
+                            }
+                        }
+                    }
+
+                    Controls.ToolButton {
+                        id: attachFilesButton
+                        enabled: true
+                        Layout.preferredWidth: Kirigami.Units.gridUnit * 2
+                        Layout.preferredHeight: Kirigami.Units.gridUnit * 2
+                        padding: 0
+                        Text {
+                            id: attachedFilesCount
+                            text: selectedFileUrls.length
+                            color: "red"
+                            visible: selectedFileUrls.length > 0
+                        }
+                        Kirigami.Icon {
+                            source: "insert-image"
+                            isMask: true
+                            smooth: true
+                            anchors.centerIn: parent
+                            width: Kirigami.Units.gridUnit * 1.5
+                            height: width
+                        }
+
+                        onClicked: {
+                            fileDialog.open()
+                        }
+                    }
+
+                    Controls.ToolButton {
+                        id: clearAttachmentButton
+                        visible: selectedFileUrls.length > 0
+                        Layout.preferredWidth: Kirigami.Units.gridUnit * 2
+                        Layout.preferredHeight: Kirigami.Units.gridUnit * 2
+                        padding: 0
+                        Kirigami.Icon {
+                            id: cancelIcon
+                            source: "edit-clear"
+                            isMask: true
+                            smooth: true
+                            anchors.centerIn: parent
+                            width: Kirigami.Units.gridUnit * 1.5
+                            height: width
+                        }
+
+                        onClicked: {
+                            selectedFileUrls = []
+                            if (messageField.text == "") {
+                                sendButton.enabled = false
+                            }
+                        }
+                    }
+                }
+
+                Controls.Label {
+                    id: "charCount"
+                    text: conversationModel.getCharCountInfo(messageField.text)
+                    visible: text.length > 0
+                    Layout.minimumWidth: Math.max(Layout.minimumWidth, width) // Make this label only grow, never shrink
+                }
+            }
+        }
+    }
+}

smsapp/resources.qrc

@@ -6,5 +6,6 @@
         <file>qml/ChatMessage.qml</file>
         <file>qml/MessageAttachments.qml</file>
         <file>qml/AttachmentViewer.qml</file>
+        <file>qml/SendingArea.qml</file>
     </qresource>
 </RCC>

smsapp/smshelper.cpp

@@ -15,6 +15,7 @@
 #include <QStandardPaths>
 #include <QHash>
 #include <QtDebug>
+#include <QFileInfo>
 
 #include <KPeople/PersonData>
 #include <KPeople/PersonsModel>
@@ -442,3 +443,13 @@ bool SmsHelper::isInGsmAlphabetExtension(const QChar& ch)
     }
     return false;
 }
+
+quint64 SmsHelper::totalMessageSize(const QList<QUrl>& urls, const QString& text) {
+    quint64 totalSize = text.size();
+    for (QUrl url : urls) {
+        QFileInfo fileInfo(url.toLocalFile());
+        totalSize += fileInfo.size();
+    }
+
+    return totalSize;
+}

smsapp/smshelper.h

@@ -115,6 +115,11 @@ public:
      */
     Q_INVOKABLE static bool isAddressValid(const QString& address);
 
+    /**
+     * Return the total size of the message
+     */
+    Q_INVOKABLE static quint64 totalMessageSize(const QList<QUrl>& urls, const QString& text);
+
 private:
     static bool isInGsmAlphabet(const QChar& ch);
     static bool isInGsmAlphabetExtension(const QChar& ch);