[IMP] mail: add moderation on channels

Purpose of this commit is to allow moderation on incoming messages in
discussion channels. On some channels on which moderation is required
messages should be in a pending moderation stage. Moderators can accept
or refuse messages as well as always allow or ban messages coming from
a given set of emails.

Channels now have an option to be moderated. Moderators can be added on
channels. They have access to a specific UI in Discuss to see and take
action on messages waiting for moderation.

Concerning mail.thread message that are pending moderation are not notified.
It means nobody receives a notification about them. Moderation process calls
the notification once the message is validated.

Various features included in this commit :

 * a model is added to store the decision about emails, allow or ban;
 * access rights are updated so that only moderators can modify moderation
   fields on message;
 * specific bus notifications are send to moderated people as well as to
   moderators on incoming emails as well as when a decision is taken;
 * options are added on channels to send explanations to moderated emails;
 * options are added on channels to write and send guidelines explaining
   why and how moderation is performed;
 * a reminder is send daily to moderators with remaining messages to moderate;
 * discuss UI is adapted and a new channel is added below Inbox and Starred
   giving access to moderation tools;
 * chanenl UI is adapted allowing to moderate directly inside channels;

This commit is linked to task ID 29521. Closes #21921.

1 files changed, 15 insertions, 0 deletions

diff --git a/addons/mail/static/src/xml/discuss.xml b/addons/mail/static/src/xml/discuss.xml
index b0a3bfe1ba9..0bfec270eea 100644
--- a/addons/mail/static/src/xml/discuss.xml
+++ b/addons/mail/static/src/xml/discuss.xml
@@ -29,6 +29,12 @@
                 <t t-set="counter" t-value="starred_counter"/>
                 <t t-call="mail.chat.SidebarNeedaction"/>
             </div>
+            <div t-if="isModerator" t-attf-class="o_mail_chat_title_main o_mail_chat_channel_item #{(active_channel_id == 'channel_moderation') ? 'o_active': ''}"
+                 data-channel-id="channel_moderation">
+                <span class="o_channel_name"> <i class="fa fa-envelope mr8"/>Moderation Queue</span>
+                <t t-set="counter" t-value="moderationCounter"/>
+                <t t-call="mail.chat.SidebarNeedaction"/>
+            </div>
             <hr class="mb8"/>
 
             <t t-set="channel_type" t-value="'public'"/>
@@ -137,6 +143,11 @@
             <button type="button" class="btn btn-default btn-sm o_mail_chat_button_unstar_all" title="Unstar all messages">Unstar all</button>
             <button type="button" class="btn btn-default btn-sm o_mail_chat_button_dm visible-xs" title="New Message">New Message</button>
             <button t-if="!disable_add_channel" type="button" class="btn btn-default btn-sm o_mail_chat_button_public o_mail_chat_button_private visible-xs" title="New Channel">New Channel</button>
+            <button type="button" class="btn btn-default btn-sm o_hidden o_mail_chat_button_select_all" title="Select all messages to moderate">Select All</button>
+            <button type="button" class="btn btn-default btn-sm o_hidden o_mail_chat_button_unselect_all" title="Unselect all messages to moderate">Unselect All</button>
+            <button type="button" data-decision="accept" class="btn btn-default btn-sm o_mail_chat_button_moderate_all" title="Accept selected messages">Accept</button>
+            <button type="button" data-decision="reject" class="btn btn-default btn-sm o_mail_chat_button_moderate_all" title="Reject selected messages">Reject</button>
+            <button type="button" data-decision="discard" class="btn btn-default btn-sm o_mail_chat_button_moderate_all" title="Discard selected messages">Discard</button>
         </div>
     </t>
 
@@ -145,6 +156,10 @@
         <input type="text" class="o_input o_mail_chat_partner_invite_input" id="mail_search_partners"/>
     </div>
 
+    <div t-name="mail.ModeratorRejectMessageDialog">
+        <input class="form-control" type="text" id="message_title" placeholder="Subject" value="Message Rejected"/>
+        <textarea class="form-control mt16" id="reject_message" placeholder="Mail Body">Your message was rejected by moderator.</textarea>
+    </div>
 
     <!-- Mobile templates -->
     <t t-name="mail.discuss_mobile">