add sending timestamp

python/src/deltachat/chatting.py

@@ -3,6 +3,7 @@
 from .cutil import as_dc_charpointer, from_dc_charpointer, iter_array
 from .capi import lib, ffi
 from .types import property_with_doc
+from datetime import datetime
 import attr
 from attr import validators as v
 
@@ -184,9 +185,18 @@ class Message(object):
 
     @property_with_doc
     def text(self):
-        """unicode representation. """
+        """unicode text of this messages. """
         return from_dc_charpointer(lib.dc_msg_get_text(self._dc_msg))
 
+    @property_with_doc
+    def time_sent(self):
+        """time when the message was sent.
+
+        :returns: datetime.datetime() object.
+        """
+        ts = lib.dc_msg_get_timestamp(self._dc_msg)
+        return datetime.fromtimestamp(ts)
+
     @property
     def chat(self):
         """chat this message was posted in.
@@ -196,6 +206,14 @@ class Message(object):
         chat_id = lib.dc_msg_get_chat_id(self._dc_msg)
         return Chat(self._dc_context, chat_id)
 
+    def get_sender_contact(self):
+        """return the contact of who wrote the message.
+
+        :returns: :class:`Contact`` instance
+        """
+        contact_id = lib.dc_msg_get_from_id(self._dc_msg)
+        return Contact(self._dc_context, contact_id)
+
 
 @attr.s
 class MessageState(object):

python/tests/test_account.py

@@ -1,6 +1,7 @@
 from __future__ import print_function
 import pytest
 from deltachat.capi import lib
+from datetime import datetime, timedelta
 from conftest import wait_configuration_progress, wait_successful_IMAP_SMTP_connection
 
 
@@ -96,6 +97,18 @@ class TestOfflineAccount:
         assert not msg_state.is_out_delivered()
         assert not msg_state.is_out_mdn_received()
 
+    def test_chat_message_distinctions(self, acfactory):
+        ac1 = acfactory.get_configured_offline_account()
+        contact1 = ac1.create_contact("some1@hello.com", name="some1")
+        chat = ac1.create_chat_by_contact(contact1)
+        past1s = datetime.now() - timedelta(seconds=1)
+        msg = chat.send_text_message("msg1")
+        ts = msg.time_sent
+        assert ts.strftime("Y")
+        assert past1s < ts
+        contact = msg.get_sender_contact()
+        assert contact == ac1.get_self_contact()
+
     def test_basic_configure_ok_addr_setting_forbidden(self, acfactory):
         ac1 = acfactory.get_configured_offline_account()
         assert ac1.get_config("mail_pw")