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Send an Email with attachment

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  • VRoninV VRonin

    I think QDesktopServices can do it. For example:

    QDesktopServices::openUrl(QUrl::fromEncoded("mailto:someguy@acompany.com?subject=Sending%20File&attachment=path/to/local/file.dat"));
    
    CharlieGC Offline
    CharlieGC Offline
    CharlieG
    wrote on last edited by
    #3

    @VRonin said in Send an Email with attachment:

    QDesktopServices::openUrl(QUrl::fromEncoded("mailto:someguy@acompany.com?subject=Sending%20File&attachment=path/to/local/file.dat"));

    Unfortunatly, this is impossible beacause mailto don't accept attachment parameter

    1 Reply Last reply
    0
    • VRoninV Offline
      VRoninV Offline
      VRonin
      wrote on last edited by
      #4

      Yes it's recommended, for security reasons, for clients to refuse the attachment (or attach) parameters but some still do. Unfortunately that's still your best shot as a client refusing attachments via mailto will most likely refuse them in any other way

      "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
      ~Napoleon Bonaparte

      On a crusade to banish setIndexWidget() from the holy land of Qt

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      0
      • O Offline
        O Offline
        onek24
        wrote on last edited by
        #5

        If you won't find an appropriate solution, maybe SMTP would be a solution for you. You can write one for yourself using the QSslSocket or use an existing one.

        CharlieGC 1 Reply Last reply
        0
        • O onek24

          If you won't find an appropriate solution, maybe SMTP would be a solution for you. You can write one for yourself using the QSslSocket or use an existing one.

          CharlieGC Offline
          CharlieGC Offline
          CharlieG
          wrote on last edited by
          #6

          @onek24
          Yes this is a solution, but the user will have to configure the server while I wish that he can use his native client (with address book, ...).

          In fact I would like to do like the "Send by mail" options of Word, LibreOffice or Calligra. So I looked at the source code of Calligra and it seems to use the ShellExecuteW command (in KToolInvocation::invokMailer), but I can not get it to work.

          Do you have a track?

          1 Reply Last reply
          0
          • VRoninV Offline
            VRoninV Offline
            VRonin
            wrote on last edited by VRonin
            #7

            Actually you might have found the solution yourself, just build KService library and link to it to be able to use invokMailer.
            Unfortunately that module does not work on android so you'll probably have to implement an android-only solution in an #ifdef

            "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
            ~Napoleon Bonaparte

            On a crusade to banish setIndexWidget() from the holy land of Qt

            CharlieGC 1 Reply Last reply
            0
            • VRoninV VRonin

              Actually you might have found the solution yourself, just build KService library and link to it to be able to use invokMailer.
              Unfortunately that module does not work on android so you'll probably have to implement an android-only solution in an #ifdef

              CharlieGC Offline
              CharlieGC Offline
              CharlieG
              wrote on last edited by
              #8

              Hello

              @VRonin
              Do you know build KService ? I don't found the way to do

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              • VRoninV Offline
                VRoninV Offline
                VRonin
                wrote on last edited by VRonin
                #9

                It's super easy as it uses CMake. what OS and compiler are you on?

                "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
                ~Napoleon Bonaparte

                On a crusade to banish setIndexWidget() from the holy land of Qt

                CharlieGC 1 Reply Last reply
                0
                • VRoninV VRonin

                  It's super easy as it uses CMake. what OS and compiler are you on?

                  CharlieGC Offline
                  CharlieGC Offline
                  CharlieG
                  wrote on last edited by
                  #10

                  @VRonin
                  I don't use CMake and currently my app have to run on Windows (7, 8 & 10), Mac and Android. For Android I will use Android Extra.

                  I think I understood how build KService. I tested this WE.

                  Thank.

                  1 Reply Last reply
                  0
                  • CharlieGC Offline
                    CharlieGC Offline
                    CharlieG
                    wrote on last edited by CharlieG
                    #11

                    Hi,

                    By helping me with this topic, I try to send an email with native client of my Android Device.

                    Here is my codes

                    //JavaClass.java in /android/src/com/company/myapp
                    package com.comany.myapp;
                    import android.content.Intent;
                    import android.app.Activity;
                    import android.util.Log;
                    import android.net.Uri;
                    import org.qtproject.qt5.android.bindings.QtActivity;
                    public class JavaClass extends QtActivity {
                        private static JavaClass m_instance;
                        public JavaClass()
                        {
                            Log.d("Mailer::Mailer", "Constructor");
                            m_instance = this;
                        }
                        public static void sendMail(String attachmentFilename)
                        {
                            Log.d("Mailer::sendMail", "java-code: sendMail(): 1 file=" + attachmentFilename);
                            Log.d("Mailer::sendMail", "java-code: m_instance=" + m_instance);
                            String f = "file://" + attachmentFilename;
                            Uri uri = Uri.parse(f);
                            try{
                                Intent intent = new Intent(Intent.ACTION_SEND);
                                intent.setType("message/rfc822");
                                intent.putExtra(Intent.EXTRA_SUBJECT, "CSV export");
                                //intent.putExtra(Intent.EXTRA_EMAIL, new String[]{"abc@gmail.com"});
                                //intent.putExtra(Intent.EXTRA_STREAM, uri);
                                Log.d("Mailer::sendMail", "java-code: sendMail(): 2");
                                Intent mailer = Intent.createChooser(intent, null);
                                Log.d("Mailer::sendMail", "java-code: sendMail(): 3");
                                if(mailer == null){
                                    Log.e("Mailer::sendMail", "Couldn't get Mail Intent");
                                    return;
                                }
                                Log.d("Mailer", "java-code: mailer    =" + mailer);
                                Log.d("Mailer", "java-code: m_instance=" + m_instance);
                                m_instance.getApplicationContext().startActivity(mailer);
                                Log.d("Mailer::sendMail", "java-code: sendMail(): 4");
                            }
                            catch (android.content.ActivityNotFoundException ex){
                                Log.e("Mailer", "catched android.content.ActivityNotFoundException while starting activity");
                                ex.printStackTrace();
                            }
                            Log.d("Mailer", "java-code: notify(): END");
                        }
                    }
                    
                    
                    //My C++ function
                    QAndroidJniObject javaFilenameStr = QAndroidJniObject::fromString(attachment);
                    qDebug() << "call QAndroidJniObject::callStaticMethod to send " << attachment;
                    QAndroidJniObject::callStaticMethod<void>(
                    "com/company/myapp/JavaClass",
                    "sendMail",
                    "(Ljava/lang/String;)V", javaFilenameStr.object<jstring>());
                    
                    
                    //and a part of my AndroidManifest.xml
                    <activity
                                android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|layoutDirection|locale|fontScale|keyboard|keyboardHidden|navigation"
                                android:name="com.company.myapp.JavaClass"
                                android:label="-- %%INSERT_APP_NAME%% --"
                                android:screenOrientation="unspecified" android:launchMode="singleTop">
                    
                    

                    Currently, I think have a problem with this line
                    m_instance.getApplicationContext().startActivity(mailer);

                    Here are the output messages of the application when I run a first time my C++ function :

                    ...
                    D Mailer::sendMail: java-code: m_instance=com.company.myapp.JavaClass@8a067fd
                    D Mailer::sendMail: java-code: sendMail(): 2
                    D Mailer::sendMail: java-code: sendMail(): 3
                    D Mailer : java-code: mailer =Intent { act=android.intent.action.CHOOSER (has extras) }
                    D Mailer : java-code: m_instance=com.company.myapp.JavaClass@8a067fd
                    

                    If I run a second time my function, the app crash with many messages including :

                    F art : art/runtime/java_vm_ext.cc:410] JNI DETECTED ERROR IN APPLICATION: JNI NewString called with pending exception android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want?
                    

                    What do you think about ?

                    Thank you in advance.

                    Charlie.

                    jsulmJ 1 Reply Last reply
                    0
                    • CharlieGC CharlieG

                      Hi,

                      By helping me with this topic, I try to send an email with native client of my Android Device.

                      Here is my codes

                      //JavaClass.java in /android/src/com/company/myapp
                      package com.comany.myapp;
                      import android.content.Intent;
                      import android.app.Activity;
                      import android.util.Log;
                      import android.net.Uri;
                      import org.qtproject.qt5.android.bindings.QtActivity;
                      public class JavaClass extends QtActivity {
                          private static JavaClass m_instance;
                          public JavaClass()
                          {
                              Log.d("Mailer::Mailer", "Constructor");
                              m_instance = this;
                          }
                          public static void sendMail(String attachmentFilename)
                          {
                              Log.d("Mailer::sendMail", "java-code: sendMail(): 1 file=" + attachmentFilename);
                              Log.d("Mailer::sendMail", "java-code: m_instance=" + m_instance);
                              String f = "file://" + attachmentFilename;
                              Uri uri = Uri.parse(f);
                              try{
                                  Intent intent = new Intent(Intent.ACTION_SEND);
                                  intent.setType("message/rfc822");
                                  intent.putExtra(Intent.EXTRA_SUBJECT, "CSV export");
                                  //intent.putExtra(Intent.EXTRA_EMAIL, new String[]{"abc@gmail.com"});
                                  //intent.putExtra(Intent.EXTRA_STREAM, uri);
                                  Log.d("Mailer::sendMail", "java-code: sendMail(): 2");
                                  Intent mailer = Intent.createChooser(intent, null);
                                  Log.d("Mailer::sendMail", "java-code: sendMail(): 3");
                                  if(mailer == null){
                                      Log.e("Mailer::sendMail", "Couldn't get Mail Intent");
                                      return;
                                  }
                                  Log.d("Mailer", "java-code: mailer    =" + mailer);
                                  Log.d("Mailer", "java-code: m_instance=" + m_instance);
                                  m_instance.getApplicationContext().startActivity(mailer);
                                  Log.d("Mailer::sendMail", "java-code: sendMail(): 4");
                              }
                              catch (android.content.ActivityNotFoundException ex){
                                  Log.e("Mailer", "catched android.content.ActivityNotFoundException while starting activity");
                                  ex.printStackTrace();
                              }
                              Log.d("Mailer", "java-code: notify(): END");
                          }
                      }
                      
                      
                      //My C++ function
                      QAndroidJniObject javaFilenameStr = QAndroidJniObject::fromString(attachment);
                      qDebug() << "call QAndroidJniObject::callStaticMethod to send " << attachment;
                      QAndroidJniObject::callStaticMethod<void>(
                      "com/company/myapp/JavaClass",
                      "sendMail",
                      "(Ljava/lang/String;)V", javaFilenameStr.object<jstring>());
                      
                      
                      //and a part of my AndroidManifest.xml
                      <activity
                                  android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|layoutDirection|locale|fontScale|keyboard|keyboardHidden|navigation"
                                  android:name="com.company.myapp.JavaClass"
                                  android:label="-- %%INSERT_APP_NAME%% --"
                                  android:screenOrientation="unspecified" android:launchMode="singleTop">
                      
                      

                      Currently, I think have a problem with this line
                      m_instance.getApplicationContext().startActivity(mailer);

                      Here are the output messages of the application when I run a first time my C++ function :

                      ...
                      D Mailer::sendMail: java-code: m_instance=com.company.myapp.JavaClass@8a067fd
                      D Mailer::sendMail: java-code: sendMail(): 2
                      D Mailer::sendMail: java-code: sendMail(): 3
                      D Mailer : java-code: mailer =Intent { act=android.intent.action.CHOOSER (has extras) }
                      D Mailer : java-code: m_instance=com.company.myapp.JavaClass@8a067fd
                      

                      If I run a second time my function, the app crash with many messages including :

                      F art : art/runtime/java_vm_ext.cc:410] JNI DETECTED ERROR IN APPLICATION: JNI NewString called with pending exception android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want?
                      

                      What do you think about ?

                      Thank you in advance.

                      Charlie.

                      jsulmJ Offline
                      jsulmJ Offline
                      jsulm
                      Lifetime Qt Champion
                      wrote on last edited by
                      #12

                      @CharlieG The error message says it actually: you either start your activity from an activity context or set the FLAG_ACTIVITY_NEW_TASK flag (probably in m_instance.getApplicationContext().startActivity(mailer);). I'm not an android expert, so I cannot tell you what exactly you need to change.

                      https://forum.qt.io/topic/113070/qt-code-of-conduct

                      1 Reply Last reply
                      1
                      • CharlieGC Offline
                        CharlieGC Offline
                        CharlieG
                        wrote on last edited by
                        #13

                        Hi,

                        In fact, this is very easy :

                        Intent mailer = Intent.createChooser(intent, null);
                        mailer.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                        

                        Now I have to figure out how to do with the desktop device.
                        Unfortunately, for now, I can't run KService's KToolInvocation :: invokMailer function.

                        VRoninV 1 Reply Last reply
                        0
                        • CharlieGC CharlieG

                          Hi,

                          In fact, this is very easy :

                          Intent mailer = Intent.createChooser(intent, null);
                          mailer.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                          

                          Now I have to figure out how to do with the desktop device.
                          Unfortunately, for now, I can't run KService's KToolInvocation :: invokMailer function.

                          VRoninV Offline
                          VRoninV Offline
                          VRonin
                          wrote on last edited by
                          #14

                          @CharlieG said in Send an Email with attachment:

                          Unfortunately, for now, I can't run KService

                          Any more details? can we help?

                          "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
                          ~Napoleon Bonaparte

                          On a crusade to banish setIndexWidget() from the holy land of Qt

                          CharlieGC 1 Reply Last reply
                          0
                          • VRoninV VRonin

                            @CharlieG said in Send an Email with attachment:

                            Unfortunately, for now, I can't run KService

                            Any more details? can we help?

                            CharlieGC Offline
                            CharlieGC Offline
                            CharlieG
                            wrote on last edited by
                            #15

                            Hi,

                            Sorry for the late response.

                            @VRonin

                            Any more details? can we help?

                            Maybe ;-)

                            In the first time, I wanted directly try the code of invokMailer in my app :

                            On Windows, here is the code :

                            ...
                            #include "shellapi.h"
                            ...
                            
                            void KToolInvocation::invokeMailer(const QString &_to, const QString &_cc, const QString &_bcc,
                                                                    const QString &subject, const QString &body,
                                                                    const QString & /*messageFile TODO*/, const QStringList &attachURLs,
                                                                    const QByteArray &startup_id)
                            {
                                QUrl url(QLatin1String("mailto:") + _to);
                                QUrlQuery query;
                                query.addQueryItem(QStringLiteral("subject"), subject);
                                query.addQueryItem(QStringLiteral("cc"), _cc);
                                query.addQueryItem(QStringLiteral("bcc"), _bcc);
                                query.addQueryItem(QStringLiteral("body"), body);
                                foreach (const QString &attachURL, attachURLs) {
                                    query.addQueryItem(QStringLiteral("attach"), attachURL);
                                }
                                url.setQuery(query);
                            
                                 #ifndef _WIN32_WCE
                                    QString sOpen = QLatin1String("open");
                                    ShellExecuteW(0, (LPCWSTR)sOpen.utf16(), (LPCWSTR)url.url().utf16(), 0, 0, SW_NORMAL);
                                #else
                                    SHELLEXECUTEINFO cShellExecuteInfo = {0};
                                    cShellExecuteInfo.cbSize = sizeof(SHELLEXECUTEINFO);
                                    cShellExecuteInfo.fMask = SEE_MASK_NOCLOSEPROCESS;
                                    cShellExecuteInfo.hwnd = NULL;
                                    cShellExecuteInfo.lpVerb = L"Open";
                                    cShellExecuteInfo.lpFile = (LPCWSTR)url.url().utf16();
                                    cShellExecuteInfo.nShow = SW_SHOWNORMAL;
                                    ShellExecuteEx(&cShellExecuteInfo);
                               #endif
                            }
                            

                            I can run the code, but the attachment isn't in the mail.

                            On Linux and Mac OSX, the function is replace by QDesktopService::openUrl(mailtoUrl). If I want directly use the code of invokeMailer, I have a problem with include "shellapi.h"

                            So I turn around...

                            Have you an idea ?

                            Bye and thank.

                            Charlie

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