Implemented paper message handling

nomadnet/Conversation.py

@@ -227,6 +227,35 @@ class Conversation:
             RNS.log("Destination is not known, cannot create LXMF Message.", RNS.LOG_VERBOSE)
             return False
 
+    def paper_output(self, content="", title=""):
+        if self.send_destination:
+            try:
+                dest = self.send_destination
+                source = self.app.lxmf_destination
+                desired_method = LXMF.LXMessage.PAPER
+
+                lxm = LXMF.LXMessage(dest, source, content, title=title, desired_method=desired_method)
+                qr_code = lxm.as_qr()
+                qr_tmp_path = self.app.tmpfilespath+"/"+str(RNS.hexrep(lxm.hash, delimit=False))
+                qr_code.save(qr_tmp_path)
+
+                print_result = self.app.print_file(qr_tmp_path)
+                os.unlink(qr_tmp_path)
+                
+                if print_result:
+                    message_path = Conversation.ingest(lxm, self.app, originator=True)
+                    self.messages.append(ConversationMessage(message_path))
+
+                return print_result
+
+            except Exception as e:
+                RNS.log("An error occurred while generating paper message, the contained exception was: "+str(e), RNS.LOG_ERROR)
+                return False
+
+        else:
+            RNS.log("Destination is not known, cannot create LXMF Message.", RNS.LOG_VERBOSE)
+            return False
+
     def message_notification(self, message):
         if message.state == LXMF.LXMessage.FAILED and hasattr(message, "try_propagation_on_fail") and message.try_propagation_on_fail:
             RNS.log("Direct delivery of "+str(message)+" failed. Retrying as propagated message.", RNS.LOG_VERBOSE)

nomadnet/NomadNetworkApp.py

@@ -105,6 +105,7 @@ class NomadNetworkApp:
         self.conversationpath  = self.configdir+"/storage/conversations"
         self.directorypath     = self.configdir+"/storage/directory"
         self.peersettingspath  = self.configdir+"/storage/peersettings"
+        self.tmpfilespath      = self.configdir+"/storage/tmp"
 
         self.pagespath         = self.configdir+"/storage/pages"
         self.filespath         = self.configdir+"/storage/files"
@@ -145,6 +146,11 @@ class NomadNetworkApp:
         if not os.path.isdir(self.cachepath):
             os.makedirs(self.cachepath)
 
+        if not os.path.isdir(self.tmpfilespath):
+            os.makedirs(self.tmpfilespath)
+        else:
+            self.clear_tmp_dir()
+
         if os.path.isfile(self.configpath):
             try:
                 self.config = ConfigObj(self.configpath)
@@ -514,6 +520,26 @@ class NomadNetworkApp:
 
         return False
 
+    def print_file(self, filename):
+        print_command = self.print_command+" "+filename
+
+        try:
+            return_code = subprocess.call(shlex.split(print_command), stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+
+        except Exception as e:
+            RNS.log("An error occurred while executing print command: "+str(print_command), RNS.LOG_ERROR)
+            RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
+            return False
+
+        if return_code == 0:
+            RNS.log("Successfully printed "+str(filename)+" using print command: "+print_command, RNS.LOG_DEBUG)
+            return True
+
+        else:
+            RNS.log("Printing "+str(filename)+" failed using print command: "+print_command, RNS.LOG_DEBUG)
+            return False
+
+
     def print_message(self, message, received = None):
         try:
             template = self.printing_template_msg
@@ -547,8 +573,7 @@ class NomadNetworkApp:
                 f.write(output.encode("utf-8"))
                 f.close()
 
-            print_command = "lp -d thermal -o cpi=16 -o lpi=8 "+filename
+            self.print_file(filename)
-            return_code = subprocess.call(shlex.split(print_command), stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
 
             os.unlink(filename)
 
@@ -576,6 +601,12 @@ class NomadNetworkApp:
             if os.path.isfile(self.conversationpath + "/" + source_hash + "/unread"):
                 os.unlink(self.conversationpath + "/" + source_hash + "/unread")
 
+    def clear_tmp_dir(self):
+        if os.path.isdir(self.tmpfilespath):
+            for file in os.listdir(self.tmpfilespath):
+                fpath = self.tmpfilespath+"/"+file
+                os.unlink(fpath)
+
     def createDefaultConfig(self):
         self.config = ConfigObj(__default_nomadnet_config__)
         self.config.filename = self.configpath

nomadnet/ui/TextUI.py

@@ -121,7 +121,9 @@ GLYPHS = {
     ("decoration_menu", " +",        " +",          " \uf93a"),
     ("unread_menu",     " !",        " \u2709",     urm_char),
     ("globe",           "",          "",            "\uf484"),
-    ("sent",            "/\\",       "\u2191",      "\ufbf4")
+    ("sent",            "/\\",       "\u2191",      "\ufbf4"),
+    ("papermsg",        "P",         "\u25a4",      "\uf719"),
+    ("qrcode",          "QR",        "\u25a4",      "\uf029"),
 }
 
 class TextUI:

nomadnet/ui/textui/Conversations.py

@@ -14,13 +14,13 @@ class ConversationListDisplayShortcuts():
     def __init__(self, app):
         self.app = app
 
-        self.widget = urwid.AttrMap(urwid.Text("[C-e] Peer Info  [C-x] Delete  [C-r] Sync  [C-n] New  [C-g] Fullscreen"), "shortcutbar")
+        self.widget = urwid.AttrMap(urwid.Text("[C-e] Peer Info  [C-x] Delete  [C-r] Sync  [C-n] New  [C-u] Ingest URL  [C-g] Fullscreen"), "shortcutbar")
 
 class ConversationDisplayShortcuts():
     def __init__(self, app):
         self.app = app
 
-        self.widget = urwid.AttrMap(urwid.Text("[C-d] Send  [C-k] Clear  [C-w] Close  [C-t] Title  [C-p] Purge  [C-x] Clear History  [C-o] Sort"), "shortcutbar")
+        self.widget = urwid.AttrMap(urwid.Text("[C-d] Send  [C-p] Paper Msg  [C-t] Title  [C-k] Clear  [C-w] Close  [C-u] Purge  [C-x] Clear History  [C-o] Sort"), "shortcutbar")
 
 class ConversationsArea(urwid.LineBox):
     def keypress(self, size, key):
@@ -30,6 +30,8 @@ class ConversationsArea(urwid.LineBox):
             self.delegate.delete_selected_conversation()
         elif key == "ctrl n":
             self.delegate.new_conversation()
+        elif key == "ctrl u":
+            self.delegate.ingest_lxm_url()
         elif key == "ctrl r":
             self.delegate.sync_conversations()
         elif key == "ctrl g":
@@ -330,6 +332,110 @@ class ConversationsDisplay():
         options = self.columns_widget.options("given", ConversationsDisplay.given_list_width)
         self.columns_widget.contents[0] = (overlay, options)
 
+    def ingest_lxm_url(self):
+        self.dialog_open = True
+        lxm_url = ""
+        e_url = urwid.Edit(caption="URL : ",edit_text=lxm_url)
+
+        def dismiss_dialog(sender):
+            self.update_conversation_list()
+            self.dialog_open = False
+
+        def confirmed(sender):
+            try:
+                local_delivery_signal = "local_delivery_occurred"
+                duplicate_signal = "duplicate_lxm"
+                lxm_url = e_url.get_edit_text()
+
+                ingest_result = self.app.message_router.ingest_lxm_url(
+                    lxm_url,
+                    signal_local_delivery=local_delivery_signal,
+                    signal_duplicate=duplicate_signal
+                )
+
+                if ingest_result == False:
+                    raise ValueError("The URL contained no decodable messages")
+                
+                elif ingest_result == local_delivery_signal:
+                    rdialog_pile = urwid.Pile([
+                        urwid.Text("Message was decoded, decrypted successfully, and added to your conversation list."),
+                        urwid.Text(""),
+                        urwid.Columns([("weight", 0.6, urwid.Text("")), ("weight", 0.4, urwid.Button("OK", on_press=dismiss_dialog))])
+                    ])
+                    rdialog_pile.error_display = False
+
+                    rdialog = DialogLineBox(rdialog_pile, title="Ingest message URL")
+                    rdialog.delegate = self
+                    bottom = self.listbox
+
+                    roverlay = urwid.Overlay(rdialog, bottom, align="center", width=("relative", 100), valign="middle", height="pack", left=2, right=2)
+
+                    options = self.columns_widget.options("given", ConversationsDisplay.given_list_width)
+                    self.columns_widget.contents[0] = (roverlay, options)
+                
+                elif ingest_result == duplicate_signal:
+                    rdialog_pile = urwid.Pile([
+                        urwid.Text("The decoded message has already been processed by the LXMF Router, and will not be ingested again."),
+                        urwid.Text(""),
+                        urwid.Columns([("weight", 0.6, urwid.Text("")), ("weight", 0.4, urwid.Button("OK", on_press=dismiss_dialog))])
+                    ])
+                    rdialog_pile.error_display = False
+
+                    rdialog = DialogLineBox(rdialog_pile, title="Ingest message URL")
+                    rdialog.delegate = self
+                    bottom = self.listbox
+
+                    roverlay = urwid.Overlay(rdialog, bottom, align="center", width=("relative", 100), valign="middle", height="pack", left=2, right=2)
+
+                    options = self.columns_widget.options("given", ConversationsDisplay.given_list_width)
+                    self.columns_widget.contents[0] = (roverlay, options)
+                
+                else:
+                    if self.app.enable_node:
+                        propagation_text = "The decoded message was not addressed to this LXMF address, but has been added to the propagation node queues, and will be distributed on the propagation network."
+                    else:
+                        propagation_text = "The decoded message was not addressed to this LXMF address, and has been discarded."
+
+                    rdialog_pile = urwid.Pile([
+                        urwid.Text(propagation_text),
+                        urwid.Text(""),
+                        urwid.Columns([("weight", 0.6, urwid.Text("")), ("weight", 0.4, urwid.Button("OK", on_press=dismiss_dialog))])
+                    ])
+                    rdialog_pile.error_display = False
+
+                    rdialog = DialogLineBox(rdialog_pile, title="Ingest message URL")
+                    rdialog.delegate = self
+                    bottom = self.listbox
+
+                    roverlay = urwid.Overlay(rdialog, bottom, align="center", width=("relative", 100), valign="middle", height="pack", left=2, right=2)
+
+                    options = self.columns_widget.options("given", ConversationsDisplay.given_list_width)
+                    self.columns_widget.contents[0] = (roverlay, options)
+
+            except Exception as e:
+                RNS.log("Could not ingest LXM URL. The contained exception was: "+str(e), RNS.LOG_VERBOSE)
+                if not dialog_pile.error_display:
+                    dialog_pile.error_display = True
+                    options = dialog_pile.options(height_type="pack")
+                    dialog_pile.contents.append((urwid.Text(""), options))
+                    dialog_pile.contents.append((urwid.Text(("error_text", "Could ingest LXM from URL data. Check your input."), align="center"), options))
+
+        dialog_pile = urwid.Pile([
+            e_url,
+            urwid.Text(""),
+            urwid.Columns([("weight", 0.45, urwid.Button("Ingest", on_press=confirmed)), ("weight", 0.1, urwid.Text("")), ("weight", 0.45, urwid.Button("Back", on_press=dismiss_dialog))])
+        ])
+        dialog_pile.error_display = False
+
+        dialog = DialogLineBox(dialog_pile, title="Ingest message URL")
+        dialog.delegate = self
+        bottom = self.listbox
+
+        overlay = urwid.Overlay(dialog, bottom, align="center", width=("relative", 100), valign="middle", height="pack", left=2, right=2)
+
+        options = self.columns_widget.options("given", ConversationsDisplay.given_list_width)
+        self.columns_widget.contents[0] = (overlay, options)
+
     def delete_conversation(self, source_hash):
         if source_hash in ConversationsDisplay.cached_conversation_widgets:
             conversation = ConversationsDisplay.cached_conversation_widgets[source_hash]
@@ -636,6 +742,8 @@ class MessageEdit(urwid.Edit):
     def keypress(self, size, key):
         if key == "ctrl d":
             self.delegate.send_message()
+        elif key == "ctrl p":
+            self.delegate.paper_message()
         elif key == "ctrl k":
             self.delegate.clear_editor()
         elif key == "up":
@@ -800,7 +908,7 @@ class ConversationWidget(urwid.WidgetWrap):
             self.toggle_focus_area()
         elif key == "ctrl w":
             self.close()
-        elif key == "ctrl p":
+        elif key == "ctrl u":
             self.conversation.purge_failed()
             self.conversation_changed(None)
         elif key == "ctrl t":
@@ -860,6 +968,34 @@ class ConversationWidget(urwid.WidgetWrap):
             else:
                 pass
 
+    def paper_message(self):
+        content = self.content_editor.get_edit_text()
+        title = self.title_editor.get_edit_text()
+        if not content == "":
+            if self.conversation.paper_output(content, title):
+                self.clear_editor()
+            else:
+                self.paper_message_failed()
+
+    def paper_message_failed(self):
+        def dismiss_dialog(sender):
+            self.dialog_open = False
+            self.conversation_changed(None)
+
+        dialog = DialogLineBox(
+            urwid.Pile([
+                urwid.Text("Could not output paper message,\ncheck your settings. See the log\nfile for any error messages.\n", align="center"),
+                urwid.Columns([("weight", 0.6, urwid.Text("")), ("weight", 0.4, urwid.Button("OK", on_press=dismiss_dialog))])
+            ]), title="!"
+        )
+        dialog.delegate = self
+        bottom = self.messagelist
+
+        overlay = urwid.Overlay(dialog, bottom, align="center", width=34, valign="middle", height="pack", left=2, right=2)
+
+        self.frame.contents["body"] = (overlay, self.frame.options())
+        self.frame.set_focus("body")
+
     def close(self):
         self.delegate.close_conversation(self)
 
@@ -890,6 +1026,9 @@ class LXMessageWidget(urwid.WidgetWrap):
             elif message.lxm.method == LXMF.LXMessage.PROPAGATED and message.lxm.state == LXMF.LXMessage.SENT:
                 header_style = "msg_header_propagated"
                 title_string = g["sent"]+" "+title_string
+            elif message.lxm.method == LXMF.LXMessage.PAPER and message.lxm.state == LXMF.LXMessage.PAPER:
+                header_style = "msg_header_propagated"
+                title_string = g["papermsg"]+" "+title_string
             elif message.lxm.state == LXMF.LXMessage.SENT:
                 header_style = "msg_header_sent"
                 title_string = g["sent"]+" "+title_string