--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libervia/pages/lists/view_item/page_meta.py	Sat Feb 20 14:07:22 2021 +0100
@@ -0,0 +1,124 @@
+#!/usr/bin/env python3
+
+from twisted.words.protocols.jabber import jid
+from sat.core.i18n import _
+from sat.tools.common import template_xmlui
+from sat.tools.common import uri
+from sat.tools.common import data_format
+from sat.core.log import getLogger
+from sat_frontends.bridge.bridge_frontend import BridgeException
+from libervia.server.constants import Const as C
+from libervia.server.utils import SubPage
+from libervia.server import session_iface
+
+log = getLogger(__name__)
+
+
+name = "list_view"
+access = C.PAGES_ACCESS_PUBLIC
+template = "list/item.html"
+
+
+def parse_url(self, request):
+    self.getPathArgs(request, ["service", "node", "item_id"], service="jid", node="@")
+    data = self.getRData(request)
+    if data["item_id"] is None:
+        log.warning(_("no list item id specified"))
+        self.pageError(request, C.HTTP_BAD_REQUEST)
+
+async def prepare_render(self, request):
+    data = self.getRData(request)
+    template_data = request.template_data
+    session = self.host.getSessionData(request, session_iface.ISATSession)
+    service, node, item_id = (
+        data.get("service", ""),
+        data.get("node", ""),
+        data["item_id"],
+    )
+    profile = self.getProfile(request)
+
+    if profile is None:
+        profile = C.SERVICE_PROFILE
+
+    list_raw = await self.host.bridgeCall(
+        "listGet",
+        service.full() if service else "",
+        node,
+        C.NO_LIMIT,
+        [item_id],
+        "",
+        {"labels_as_list": C.BOOL_TRUE},
+        profile,
+    )
+    list_items, metadata = data_format.deserialise(list_raw, type_check=list)
+    list_item = [template_xmlui.create(self.host, x) for x in list_items][0]
+    template_data["item"] = list_item
+    try:
+        comments_uri = list_item.widgets["comments_uri"].value
+    except KeyError:
+        pass
+    else:
+        if comments_uri:
+            uri_data = uri.parseXMPPUri(comments_uri)
+            template_data["comments_node"] = comments_node = uri_data["node"]
+            template_data["comments_service"] = comments_service = uri_data["path"]
+            try:
+                comments = data_format.deserialise(await self.host.bridgeCall(
+                    "mbGet", comments_service, comments_node, C.NO_LIMIT, [], {}, profile
+                ))
+            except BridgeException as e:
+                if e.classname == 'NotFound' or e.condition == 'item-not-found':
+                    log.warning(
+                        _("Can't find comment node at [{service}] {node!r}")
+                        .format(service=comments_service, node=comments_node)
+                    )
+                else:
+                    raise e
+            else:
+                template_data["comments"] = comments
+                template_data["login_url"] = self.getPageRedirectURL(request)
+                self.exposeToScripts(
+                    request,
+                    comments_node=comments_node,
+                    comments_service=comments_service,
+                )
+
+    if session.connected:
+        # we activate modification action (edit, delete) only if user is the publisher or
+        # the node owner
+        publisher = jid.JID(list_item.widgets["publisher"].value)
+        is_publisher = publisher.userhostJID() == session.jid.userhostJID()
+        affiliation = None
+        if not is_publisher:
+            node = node or self.host.ns_map["tickets"]
+            affiliation = await self.host.getAffiliation(request, service, node)
+        if is_publisher or affiliation == "owner":
+            self.exposeToScripts(
+                request,
+                pubsub_service = service.full(),
+                pubsub_node = node,
+                pubsub_item = item_id,
+            )
+            template_data["can_modify"] = True
+            template_data["url_list_item_edit"] = self.getURLByPath(
+                SubPage("list_edit"),
+                service.full(),
+                node or "@",
+                item_id,
+            )
+
+    # we add xmpp: URI
+    uri_args = {'path': service.full()}
+    uri_args['node'] = node or self.host.ns_map["tickets"]
+    if item_id:
+        uri_args['item'] = item_id
+    template_data['xmpp_uri'] = uri.buildXMPPUri('pubsub', **uri_args)
+
+
+async def on_data_post(self, request):
+    type_ = self.getPostedData(request, "type")
+    if type_ == "comment":
+        blog_page = self.getPageByName("blog_view")
+        await blog_page.on_data_post(self, request)
+    else:
+        log.warning(_("Unhandled data type: {}").format(type_))