B4A Library New Net library - Android FTP, SMTP and POP3

ZJP · Aug 17, 2011

Yessssssss !!!!!!! :sign0060:
Thx

JP

moster67 · Aug 17, 2011

Wow Erel! Many thanks for this. :icon_clap:

I am in the office now so I cannot test it. I noted that SMTP permits attachments and there is also SSL-support. Wonderful! :sign0060:

As to POP3, when you say

Currently the messages are not parsed

are you intending attachments and MIME-handling?

Kiffi · Aug 17, 2011

Thanks a lot, Erel!

:sign0098:

Greetings ... Kiffi

Brad · Aug 18, 2011

you rock man!:sign0060:

Erel · Aug 18, 2011

are you intending attachments and MIME-handling?

I actually tried several solutions before releasing this library, however none of them worked properly. The case with POP3 is that the general problem of supporting all the possible encodings and messages is very complicated.
However using POP3 to receive messages with a known format is much simpler.

If there is interest I can write a module that will help with saving attachments and with the headers.

As I wrote in the first post I think that the POP3 is a very important feature as it is a reliable method to send information to devices.

Erel · Sep 5, 2011

MailParser code module is now available: http://www.b4x.com/forum/basic4andr...0-using-pop3-communicate-android-devices.html
It allows parsing the raw messages and extracting the headers and attachments.

dealsmonkey · Sep 5, 2011

Erel said:
MailParser code module is now available: http://www.b4x.com/forum/basic4andr...0-using-pop3-communicate-android-devices.html
It allows parsing the raw messages and extracting the headers and attachments.

Monsieur, you are spoiling us :sign0142:

peacemaker · Sep 6, 2011

Good news !
Erel, is it hard to add NNTP protocol ?

Inman · Sep 18, 2011

Just the library I was looking for. SMTP library makes it really easy to send emails, that too with attachments.

One request. Is it possible to add IMAP to this library? IMAP enables the user to download certain folders (or labels) instead of downloading the whole thing. Implementing an attachment download feature might be possible as well. Google has a documentation page on IMAP extensions for Gmail, but none of that makes sense to me.

alwaysbusy · Sep 20, 2011

never receive any messages

Hi Erel,

I'll try to get the .net lib working. I do not get any errors but in the ListCompleted() event the Messages is always empty although there are mails in my inbox.

I've activated the pop download in GMail (see images.zip).

In my Desktop app (RealBasic) I get the mail from the inbox.

B4X:

'Activity module
Sub Process_Globals
   'These global variables will be declared once when the application starts.
   'These variables can be accessed from all modules.
   Dim pop As POP3
End Sub

Sub Globals
   'These global variables will be redeclared each time the activity is created.
   'These variables can only be accessed from this module.
   
End Sub

Sub Activity_Create(FirstTime As Boolean)
   If firstTime Then
      POP.Initialize("pop.gmail.com", 995, "[email protected]", "mypwd", "pop")
      POP.UseSSL = True 'Gmail requires SSL.
   End If
   pop.ListMessages
End Sub

Sub pop_ListCompleted (Success As Boolean, Messages As Map)
        Log ("Success: " & success)
   If Success = False Then
      Log(LastException.Message)
   Else
      'download all messages
      'change last parameter to True if you want to delete the messages from the server
      Log ("messages: " & Messages.Size)
      For i = 0 To Messages.Size - 1
         pop.DownloadMessage(Messages.GetKeyAt(i), False)
      Next      
   End If
   pop.CloseEnd Sub

Sub pop_DownloadCompleted (Success As Boolean, MessageId As Int, MessageText As String)
   If Success = False Then
      Log(LastException.Message)
   Else
      Log(MessageId)
      'Parse the mail
      Dim m As Message
      Dim s As String
      s = MailParser.GetSubject(MessageText)
      If s.Contains("P000001") AND s.Contains("[OUT]") Then
         m = MailParser.ParseMail(MessageText, File.DirRootExternal)
      End If
      Log(m)
   End If
End Sub

Sub Activity_Resume

End Sub

Sub Activity_Pause (UserClosed As Boolean)

End Sub

The result in the log:

B4X:

ID[0]=0(0) Dn(0=>1)
Dsptch > Window{48602558 com.android.packageinstaller/com.android.packageinstaller.InstallAppProgress paused=false}
Dsptch > Window{48602558 com.android.packageinstaller/com.android.packageinstaller.InstallAppProgress paused=false}
ID[0]=0(0) Up(1=>0)
Starting activity: Intent { act=android.intent.action.MAIN flg=0x10000000 cmp=com.AB.OneTwoANWork/.main }
Start proc com.AB.OneTwoANWork for activity com.AB.OneTwoANWork/.main: pid=8075 uid=10168 gids={1015, 3003}
Zygote: pid 8075 has INTERNET permission, then set capability for CAP_NET_RAW
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
Using factory org.apache.harmony.xnet.provider.jsse.OpenSSLSocketFactoryImpl@4006ef08
Displayed activity com.AB.OneTwoANWork/.main: 1047 ms (total 1047 ms)
Default buffer size used in BufferedReader constructor. It would be better to be explicit if an 8k-char buffer is required.
Default buffer size used in BufferedWriter constructor. It would be better to be explicit if an 8k-char buffer is required.
[B]Success: true[/B]
[B]messages: 0[/B]
Timer 0x3->0x3|0x0
GC_EXPLICIT freed 272 objects / 17424 bytes in 136ms

Erel · Sep 20, 2011

I've just tried similar code with my Gmail account and it worked properly. Try sending a new message to your account and then run the Android program.

fargoz · Sep 21, 2011

problem compile .net library

[ompiling code. 0.14
Generating R file. 0.00
Compiling generated Java code. 2.17
Convert byte code - optimized dex. Error
UNEXPECTED TOP-LEVEL EXCEPTION:
java.lang.IllegalArgumentException: already added: Lorg/apache/commons/net/DatagramSocketClient;
at com.android.dx.dex.file.ClassDefsSection.add(ClassDefsSection.java:123)
at com.android.dx.dex.file.DexFile.add(DexFile.java:143)
at com.android.dx.command.dexer.Main.processClass(Main.java:372)
at com.android.dx.command.dexer.Main.processFileBytes(Main.java:346)
at com.android.dx.command.dexer.Main.access$400(Main.java:59)
at com.android.dx.command.dexer.Main$1.processFileBytes(Main.java:294)
at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:244)
at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:130)
at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:108)
at com.android.dx.command.dexer.Main.processOne(Main.java:313)
at com.android.dx.command.dexer.Main.processAllFiles(Main.java:233)
at com.android.dx.command.dexer.Main.run(Main.java:185)
at com.android.dx.command.dexer.Main.main(Main.java:166)
at com.android.dx.command.Main.main(Main.java:90)
1 error; aborting
Standard dexer.

Erel · Sep 22, 2011

Which libraries did you reference?
Can you upload your project?

fargoz · Sep 22, 2011

I found the solution .., thank you very much

I found the solution .., thank you very much

The problem was that I had the library, ABFTP, remove them, and make again for communications with the new library. net and it works perfect.

Many thanks, Erel, are excellent administrator.

google traductor.
only spanish.

dfsantos · Sep 27, 2011

peacemaker said:
Good news !
Erel, is it hard to add NNTP protocol ?

I am also interesed
it is possible??

Erel · Sep 27, 2011

I plan to add it in the future.

dfsantos · Sep 27, 2011

Erel said:
I plan to add it in the future.

Thanks for you work :sign0060::sign0060::sign0060:

Hubert Brandel · Oct 9, 2011

Hi,

this LIB is called NET.* in the library dir I have a NETWORK.* do we have to rename the file, or is it different ?

OK, I just see NET -> SMTP, NETWORK -> Sockets, so I will need both ;-)

Erel · Oct 9, 2011

As you saw these are two different libraries. Network is for TCP / UDP communication and Net library is an implementation of several protocols: FTP, SMTP and POP3.

B4A Library New Net library - Android FTP, SMTP and POP3

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