From 077699d55d007d36f72b023e6bc743d3e2d8205e Mon Sep 17 00:00:00 2001
From: mathieui <mathieui@mathieui.net>
Date: Sat, 5 Apr 2014 18:03:35 +0200
Subject: Revert "Remove the pubsub-related stuff from the main branch"

This reverts commit 8def5609d925c89004c906d67a7e1d3028706f32.
---
 src/atom_parser.py   |  39 +++++
 src/core/commands.py |  17 ++
 src/core/core.py     |   1 +
 src/pubsub.py        | 472 +++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 529 insertions(+)
 create mode 100644 src/atom_parser.py
 create mode 100644 src/pubsub.py

diff --git a/src/atom_parser.py b/src/atom_parser.py
new file mode 100644
index 00000000..bd1de8d0
--- /dev/null
+++ b/src/atom_parser.py
@@ -0,0 +1,39 @@
+# Copyright 2010-2011 Florent Le Coz <louiz@louiz.org>
+#
+# This file is part of Poezio.
+#
+# Poezio is free software: you can redistribute it and/or modify
+# it under the terms of the zlib license. See the COPYING file.
+
+"""
+Defines a function returning a dict containing the values from an
+atom entry contained in a pubsub entry
+"""
+
+ATOM_XMLNS = "http://www.w3.org/2005/Atom"
+
+def parse_atom_entry(pubsub_item):
+    """
+    Takes a pubsub ET.Element item and returns a dict containing
+    all needed values from the atom entry element.
+    Returns None if the item does not contain an atom entry.
+    """
+    entry_elem = pubsub_item.find('{%s}entry' % (ATOM_XMLNS,))
+    if entry_elem is None:
+        return None
+    res = {'author':{}}
+    author_elem = entry_elem.find('{%s}author' % (ATOM_XMLNS,))
+    if author_elem is not None:
+        for sub in ('name', 'uri'):
+            sub_elem = author_elem.find('{%s}%s' % (ATOM_XMLNS, sub,))
+            if sub_elem is not None:
+                res['author'][sub] = sub_elem.text
+    for elem_name in {'title':'text', 'updated':'date', 'published': 'date',
+                      'summary':'text'}:
+        elem = entry_elem.find('{%s}%s' % (ATOM_XMLNS, elem_name,))
+        if elem is not None:
+            res[elem_name] = elem.text
+    link_elem = entry_elem.find('{%s}link' % (ATOM_XMLNS,))
+    if link_elem is not None:
+        res['link_href'] = link_elem.attrib.get('href') or ''
+    return res
diff --git a/src/core/commands.py b/src/core/commands.py
index 5be95207..fb8dc2eb 100644
--- a/src/core/commands.py
+++ b/src/core/commands.py
@@ -20,6 +20,7 @@ import bookmark
 import common
 import fixes
 import pep
+import pubsub
 import tabs
 import theming
 from common import safeJID
@@ -763,6 +764,22 @@ def command_bind(self, arg):
     else:
         self.information('%s is now unbound' % args[0], 'Info')
 
+def command_pubsub(self, args):
+    """
+    Opens a pubsub browser on the given domain
+    """
+    args = common.shell_split(args)
+    if len(args) != 1:
+        return self.command_help('pubsub')
+    domain = args[0]
+    tab = self.get_tab_by_name('%s@@pubsubbrowser' % (domain,), pubsub.PubsubBrowserTab)
+    if tab:
+        self.command_win('%s' % tab.nb)
+    else:
+        new_tab = pubsub.PubsubBrowserTab(domain)
+        self.add_tab(new_tab, True)
+    self.refresh_window()
+
 def command_rawxml(self, arg):
     """
     /rawxml <xml stanza>
diff --git a/src/core/core.py b/src/core/core.py
index 9ae68c55..2ef6642d 100644
--- a/src/core/core.py
+++ b/src/core/core.py
@@ -1681,6 +1681,7 @@ class Core(object):
     command_invitations = commands.command_invitations
     command_quit = commands.command_quit
     command_bind = commands.command_bind
+    command_pubsub = commands.command_pubsub
     command_rawxml = commands.command_rawxml
     command_load = commands.command_load
     command_unload = commands.command_unload
diff --git a/src/pubsub.py b/src/pubsub.py
new file mode 100644
index 00000000..55e9bc38
--- /dev/null
+++ b/src/pubsub.py
@@ -0,0 +1,472 @@
+# Copyright 2010-2011 Florent Le Coz <louiz@louiz.org>
+#
+# This file is part of Poezio.
+#
+# Poezio is free software: you can redistribute it and/or modify
+# it under the terms of the zlib license. See the COPYING file.
+
+import logging
+log = logging.getLogger(__name__)
+
+import os
+import curses
+import tempfile
+import subprocess
+
+import tabs
+import windows
+import atom_parser
+
+from config import config
+
+from datetime import datetime
+from sleekxmpp.xmlstream import ET
+
+ATOM_XMLNS = "http://www.w3.org/2005/Atom"
+
+item_template = \
+"""
+-- About you
+-- Your name
+Author: %(author)s
+
+-- Your jid (e.g. xmpp:romeo@example.com) or website’s url (http://example.com)
+URI: xmpp:%(jid)s
+
+-- Your email address (e.g. romeo@mail.com)
+email: 
+Title: 
+
+-- Please use the form dd/mm/yyy hh:mm:ss, or leave empty
+-- If you leave the date empty it will automatically be filled with the current time and date (recommended)
+Date: 
+
+--- body --- Until the end of file, this will be your item's body
+
+"""
+
+def parse_template(lines):
+    """
+    takes a template string (splitted by lines) and returns a dict with the correstponding values
+    """
+    lines = [line.lower() for line in lines]
+    res = {}
+    reading_body = False
+    body = []
+    for line in lines:
+        if line.startswith('--- body ---'):
+            reading_body = True
+            continue
+        if reading_body:
+            body.append(line)
+            continue
+        if line.startswith('-- '):
+            continue
+        for value in ('author', 'uri', 'email', 'title', 'date'):
+            if line.startswith('%s:' % (value,)):
+                res[value] = line.split(':', 1)[1].strip()
+    res['body'] = ''.join(body)
+    return res
+
+def create_entry_from_dict(dic):
+    """
+    Takes a dict with the correct values and returns an ET.Element
+    representing an Atom entry
+    """
+    entry_elem = ET.Element('entry', xmlns=ATOM_XMLNS)
+
+    author_elem = ET.Element('author', xmlns=ATOM_XMLNS)
+    if dic.get('author'):
+        name_elem = ET.Element('name', xmlns=ATOM_XMLNS)
+        name_elem.text = dic.get('author')
+        author_elem.append(name_elem)
+    if dic.get('uri'):
+        uri_elem = ET.Element('uri', xmlns=ATOM_XMLNS)
+        uri_elem.text = dic.get('uri')
+        author_elem.append(uri_elem)
+    if dic.get('email'):
+        email_elem = ET.Element('email', xmlns=ATOM_XMLNS)
+        email_elem.text = dic.get('email')
+        author_elem.append(email_elem)
+    entry_elem.append(author_elem)
+    if dic.get('title'):
+        title_elem = ET.Element('title', xmlns=ATOM_XMLNS)
+        title_elem.text = dic.get('title')
+        entry_elem.append(title_elem)
+    # TODO
+    # if dic.get('date'):
+    date_elem =  ET.Element('published', xmlns=ATOM_XMLNS)
+    date_elem.text = '%s' % datetime.now()
+    entry_elem.append(date_elem)
+    summary_elem = ET.Element('summary', xmlns=ATOM_XMLNS)
+    summary_elem.text = dic.get('body') or ''
+    entry_elem.append(summary_elem)
+    return entry_elem
+
+class PubsubNode(object):
+    node_type = None            # unknown yet
+    def __init__(self, name, parent=None):
+        self.items = []
+        self.name = name
+        self.parent = parent
+
+
+class LeafNode(PubsubNode):
+    node_type = "leaf"
+    def __init__(self, name, parent=None):
+        PubsubNode.__init__(self, name, parent)
+
+
+class CollectionNode(PubsubNode):
+    node_type = "collection"
+    def __init__(self, name, parent=None):
+        PubsubNode.__init__(self, name, parent)
+        self.subnodes = []
+
+
+class PubsubItem(object):
+    def __init__(self, idd, content):
+        self.id = idd
+        self.content = content
+        self.parsed_content = atom_parser.parse_atom_entry(content)
+
+    def to_dict(self, columns):
+        """
+        returns a dict of the values listed in columns
+        """
+        ret = {}
+        for col in columns:
+            ret[col] = self.__dict__.get(col) or ''
+        if self.parsed_content:
+            ret['title'] = self.parsed_content.get('title')
+            ret['author'] = self.parsed_content['author'].get('name')
+        return ret
+
+class PubsubBrowserTab(tabs.Tab):
+    """
+    A tab containing a pubsub browser letting the user
+    list nodes and items, view, add and delete items, etc
+    """
+    def __init__(self, server):
+        """
+        Server is the name of the pubsub server, for example:
+        pubsub.example.com
+        All action done in this tab will be made on that server.
+        """
+        tabs.Tab.__init__(self)
+        self.current_node = None # the subnode we are listing. None means the root
+        self.server = server
+        self.nodes = []         # the lower level of nodes
+
+        self.upper_message = windows.Topic()
+        self.set_info_message('Loading')
+
+        # Node List View
+        node_columns = ('node', 'name',)
+        self.node_list_header = windows.ColumnHeaderWin(node_columns)
+        self.node_listview = windows.ListWin(node_columns)
+
+        # Item List View
+        item_columns = ('title', 'author', 'id')
+        self.item_list_header = windows.ColumnHeaderWin(item_columns)
+        self.item_listview = windows.ListWin(item_columns)
+
+        # Vertical Separator
+        self.vertical_separator = windows.VerticalSeparator()
+
+        # Item viewer
+        self.item_viewer = windows.SimpleTextWin('')
+        self.default_help_message = windows.HelpText("“c”: create a node.")
+        self.input = self.default_help_message
+
+        self.key_func['c'] = self.command_create_node
+        self.key_func['p'] = self.command_publish_item
+        self.key_func["M-KEY_DOWN"] = self.scroll_node_down
+        self.key_func["M-KEY_UP"] = self.scroll_node_up
+        self.key_func["KEY_DOWN"] = self.item_listview.move_cursor_down
+        self.key_func["KEY_UP"] = self.item_listview.move_cursor_up
+        self.key_func["^M"] = self.open_selected_item
+        self.resize()
+
+        self.get_nodes()
+
+    def command_publish_item(self):
+        self.core.background = True
+        editor = config.get('editor', '') or os.getenv('EDITOR') or 'vi'
+        log.debug('Starting item edition with command %s' % editor)
+        tmpfile = tempfile.NamedTemporaryFile(mode='r+')
+        tmpfile.write(item_template % {'author': self.core.xmpp.boundjid.user, 'jid': self.core.xmpp.boundjid.bare})
+        tmpfile.flush()
+        process = subprocess.call(editor.split() + [tmpfile.name])
+        tmpfile.flush()
+        tmpfile.seek(0)
+        item_dict = parse_template(tmpfile.readlines())
+        tmpfile.close()
+        log.debug('[%s]' % item_dict)
+
+        self.core.background = False
+        self.core.full_screen_redraw()
+        entry = create_entry_from_dict(item_dict)
+        self.publish_item(entry, self.get_selected_node_name())
+
+    def publish_item(self, content, node_name):
+        """
+        publish the given item on the given node
+        """
+        def callback(res):
+            if res:
+                self.set_info_message('Item published')
+            else:
+                self.set_info_message('Item not published')
+            self.force_refresh()
+
+        self.core.xmpp.plugin['xep_0060'].setItem(self.server, node_name, content, callback=callback)
+
+    def set_info_message(self, message):
+        """
+        Set an informative message in the upper line, near the server name
+        """
+        self.upper_message.set_message('Pubsub server: %s/%s [%s]' % (self.server, self.current_node or '', message))
+
+    def resize(self):
+        self.upper_message.resize(1, self.width, 0, 0)
+        self.tab_win.resize(1, self.width, self.height-2, 0)
+
+        column_size = {'node': self.width//4,
+                       'name': self.width//4,}
+        self.node_list_header.resize_columns(column_size)
+        self.node_list_header.resize(1, self.width//2, 1, 0)
+        self.node_listview.resize_columns(column_size)
+        self.node_listview.resize(self.height//2-2, self.width//2, 2, 0)
+
+        w = self.width//2
+        column_size = {'id': w//8,
+                       'title':w//8*5,
+                       'author':w//8*2}
+        self.item_list_header.resize_columns(column_size)
+        self.item_list_header.resize(self.height//2+1, self.width//2, self.height//2, 0)
+        self.item_listview.resize_columns(column_size)
+        self.item_listview.resize(self.height//2-3, self.width//2, self.height//2+1, 0)
+
+        self.vertical_separator.resize(self.height-3, 1, 1, self.width//2)
+
+        self.item_viewer.resize(self.height-3, self.width//2+1, 1, self.width//2+1)
+        self.input.resize(1, self.width, self.height-1, 0)
+
+    def refresh(self):
+        if self.need_resize:
+            self.resize()
+        log.debug('  TAB   Refresh: %s'%self.__class__.__name__)
+        self.upper_message.refresh()
+        self.node_list_header.refresh()
+        self.node_listview.refresh()
+        self.item_list_header.refresh()
+        self.item_listview.refresh()
+        self.item_viewer.refresh()
+        self.tab_win.refresh()
+        self.vertical_separator.refresh()
+        self.input.refresh()
+
+    def force_refresh(self):
+        if self.core.current_tab() is self:
+            self.core.refresh_window()
+
+    def get_name(self):
+        return '%s@@pubsubbrowser' % (self.server,)
+
+    def on_input(self, key):
+        res = self.input.do_command(key)
+        if res:
+            return True
+        if key in self.key_func:
+            return self.key_func[key]()
+
+    def get_selected_node_name(self):
+        """
+        From the node_view_list, returns the node name of the selected
+        one. None can be returned
+        """
+        line = self.node_listview.get_selected_row()
+        if not line:
+            return None
+        return line['node']
+
+    def get_node_by_name(self, name):
+        """
+        in the currently browsed node (or on the root), return the node with that name
+        """
+        nodes = self.current_node and self.current_node.subnodes or self.nodes
+        for node in nodes:
+            if node.name == name:
+                return node
+        return None
+
+    def get_item_by_id(self, idd):
+        """
+        in the currently selected node, return the item with that id
+        """
+        selected_node_name = self.get_selected_node_name()
+        if not selected_node_name:
+            return None
+        selected_node = self.get_node_by_name(selected_node_name)
+        if not selected_node:
+            return None
+        for item in selected_node.items:
+            if item.id == idd:
+                return item
+        return None
+
+    def get_selected_item_id(self):
+        """
+        returns the id of the currently selected item
+        """
+        line = self.item_listview.get_selected_row()
+        if not line:
+            return None
+        return line['id']
+
+    def get_items(self, node):
+        """
+        Get all items in the given node
+        """
+        def callback(items):
+            item_list = []
+            if items:
+                for it in items:
+                    item_list.append(PubsubItem(it.attrib['id'], it))
+                node.items = item_list
+                log.debug('get_selected_node_name: %s' % self.get_selected_node_name())
+                if self.get_selected_node_name() == node.name:
+                    self.display_items_from_node(node)
+            log.debug('Item on node %s: %s' % (node.name, item_list))
+            self.set_info_message('Items received')
+            self.force_refresh()
+
+        self.core.xmpp.plugin['xep_0060'].get_items(self.server, node.name, callback=callback)
+
+    def display_items_from_node(self, node):
+        """
+        takes a node, and set fill the item_listview with that
+        node’s items
+        """
+        columns = self.item_list_header.get_columns()
+        self.item_listview.empty()
+        log.debug('display_items_from_node: %s' % node.items)
+        for item in node.items:
+            line = item.to_dict(columns)
+            self.item_listview.lines.append(item.to_dict(columns))
+
+    def add_nodes(self, node_list, parent=None):
+        """
+        Add Node objects to the list of the parent.
+        If parent is None, they are added to the root list.
+        If the current selected node is parent, we add
+        them directly to the node_listview
+        """
+        log.debug('Adding nodes to %s: %s' % (node_list, parent,))
+        if not parent:
+            list_to_append = self.nodes
+        else:
+            list_to_append = parent.nodes
+        self.node_listview.add_lines(node_list)
+        for node in node_list:
+            new_node = LeafNode(node['node'])
+            list_to_append.append(new_node)
+            self.get_items(new_node)
+
+    def get_nodes(self, node=None):
+        """
+        Get all subnodes of the given node. If no node is given, get
+        the root nodes
+        """
+        def callback(nodes):
+            lines = [{'name': nodes[node] or '',
+                  'node': node} for node in nodes.keys()]
+            self.add_nodes(lines)
+            self.set_info_message('Nodes received')
+            self.force_refresh()
+        self.core.xmpp.plugin['xep_0060'].get_nodes(self.server, callback=callback)
+
+    def create_node(self, node_name):
+        def callback(res):
+            if res:
+                self.node_listview.add_lines([{'name': '', 'node': node_name}])
+                self.set_info_message('Node created')
+            else:
+                self.set_info_message('Node not created')
+            self.reset_help_message()
+            self.force_refresh()
+        if node_name:
+            self.core.xmpp.plugin['xep_0060'].create_node(self.server, node_name, callback=callback)
+        return True
+
+    def reset_help_message(self, txt=None):
+        """
+        Just reset the help message when a command ends
+        """
+        curses.curs_set(0)
+        self.input = self.default_help_message
+        return True
+
+    def command_create_node(self):
+        """
+        Prompt for a node name and create it on Enter key
+        """
+        curses.curs_set(1)
+        self.input = windows.CommandInput("[Create node]", self.reset_help_message, self.create_node, None)
+        self.input.resize(1, self.width, self.height-1, 0)
+        return True
+
+    def scroll_node_up(self):
+        """
+        scroll the node up, and update the item list if needed
+        """
+        selected_node_before = self.get_selected_node_name()
+        self.node_listview.move_cursor_up()
+        selected_node_after = self.get_selected_node_name()
+        if selected_node_after is not selected_node_before:
+            self.display_items_from_node(self.get_node_by_name(selected_node_after))
+            return True
+        return False
+
+    def scroll_node_down(self):
+        """
+        scroll the node down, and update the item list if needed
+        """
+        selected_node_before = self.get_selected_node_name()
+        self.node_listview.move_cursor_down()
+        selected_node_after = self.get_selected_node_name()
+        if selected_node_after is not selected_node_before:
+            self.display_items_from_node(self.get_node_by_name(selected_node_after))
+            return True
+        return False
+
+    def open_selected_item(self):
+        """
+        displays the currently selected item in the item view window
+        """
+        selected_item = self.get_item_by_id(self.get_selected_item_id())
+        if not selected_item:
+            return
+        log.debug('Content: %s'%ET.tostring(selected_item.content))
+        entry = atom_parser.parse_atom_entry(selected_item.content)
+        if not entry:
+            self.item_viewer._text = str(ET.tostring(selected_item.content))
+        else:
+            self.item_viewer._text = \
+"""\x193Title:\x19o %(title)s
+\x193Author:\x19o %(author_name)s (%(author_uri)s)
+%(dates)s\x193Link:\x19o %(link)s
+
+\x193Summary:\x19o
+%(summary)s
+""" % {'title': entry.get('title') or '',
+       'author_name': entry['author'].get('name') or '',
+       'author_uri': entry['author'].get('uri') or '',
+       'link': entry.get('link_href') or '',
+       'summary': entry.get('summary') or '',
+       'dates': '\x193Published:\x19o %(published)s\n%(updated)s' % {'published':entry.get('published') or '',
+                                                                'updated': '' if (entry.get('updated') is None) or (entry.get('published') == entry.get('updated')) else '\x193Published:\x19o %s\n' % entry.get('updated')}
+       }
+        self.item_viewer.rebuild_text()
+        return True
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