mod_posix: Move everything to util.startup
This allows greater control over the order of events.
Notably, the internal ordering between daemonization, initialization of
libunbound and setup of signal handling is sensitive.
libunbound starts a separate thread for processing DNS requests.
If this thread is started before signal handling has been set up, it
will not inherit the signal handlers and instead behave as it would have
before signal handlers were set up, i.e. cause the whole process to
immediately exit.
libunbound is usually initialized on the first DNS request, usually
triggered by an outgoing s2s connection attempt.
If daemonization happens before signals have been set up, signals may
not be processed at all.
# Pubsub preconditions are enforced
[Client] Romeo
password: password
jid: jqpcrbq2@localhost
-----
Romeo connects
Romeo sends:
<iq id="67eb1f47-1e69-4cb3-91e2-4d5943e72d4c" type="set">
<pubsub xmlns="http://jabber.org/protocol/pubsub">
<publish node="http://jabber.org/protocol/tune">
<item id="current">
<tune xmlns="http://jabber.org/protocol/tune"/>
</item>
</publish>
</pubsub>
</iq>
Romeo receives:
<iq id="67eb1f47-1e69-4cb3-91e2-4d5943e72d4c" type="result">
<pubsub xmlns="http://jabber.org/protocol/pubsub">
<publish node="http://jabber.org/protocol/tune">
<item id="current"/>
</publish>
</pubsub>
</iq>
Romeo sends:
<iq id="52d74a36-afb0-4028-87ed-b25b988b049e" type="get">
<pubsub xmlns="http://jabber.org/protocol/pubsub#owner">
<configure node="http://jabber.org/protocol/tune"/>
</pubsub>
</iq>
Romeo receives:
<iq id="52d74a36-afb0-4028-87ed-b25b988b049e" type="result">
<pubsub xmlns="http://jabber.org/protocol/pubsub#owner">
<configure node="http://jabber.org/protocol/tune">
<x xmlns="jabber:x:data" type="form">
<field var="FORM_TYPE" type="hidden">
<value>http://jabber.org/protocol/pubsub#node_config</value>
</field>
<field var="pubsub#title" label="Title" type="text-single"/>
<field var="pubsub#description" label="Description" type="text-single"/>
<field var="pubsub#type" label="The type of node data, usually specified by the namespace of the payload (if any)" type="text-single"/>
<field var="pubsub#max_items" label="Max # of items to persist" type="text-single">
<validate xmlns="http://jabber.org/protocol/xdata-validate" datatype="pubsub:integer-or-max">
<range min="1" max="256"/>
</validate>
<value>1</value>
</field>
<field var="pubsub#persist_items" label="Persist items to storage" type="boolean">
<value>1</value>
</field>
<field var="pubsub#access_model" label="Specify the subscriber model" type="list-single">
<option label="authorize">
<value>authorize</value>
</option>
<option label="open">
<value>open</value>
</option>
<option label="presence">
<value>presence</value>
</option>
<option label="roster">
<value>roster</value>
</option>
<option label="whitelist">
<value>whitelist</value>
</option>
<value>presence</value>
</field>
<field var="pubsub#publish_model" label="Specify the publisher model" type="list-single">
<option label="publishers">
<value>publishers</value>
</option>
<option label="subscribers">
<value>subscribers</value>
</option>
<option label="open">
<value>open</value>
</option>
<value>publishers</value>
</field>
<field type='list-single' var='pubsub#send_last_published_item'>
<option label='never'>
<value>never</value>
</option>
<option label='on_sub'>
<value>on_sub</value>
</option>
<option label='on_sub_and_presence'>
<value>on_sub_and_presence</value>
</option>
<value>on_sub_and_presence</value>
</field>
<field var="pubsub#deliver_notifications" label="Whether to deliver event notifications" type="boolean">
<value>1</value>
</field>
<field var="pubsub#deliver_payloads" label="Whether to deliver payloads with event notifications" type="boolean">
<value>1</value>
</field>
<field var="pubsub#notification_type" label="Specify the delivery style for notifications" type="list-single">
<option label="Messages of type normal">
<value>normal</value>
</option>
<option label="Messages of type headline">
<value>headline</value>
</option>
<value>headline</value>
</field>
<field var="pubsub#notify_delete" label="Whether to notify subscribers when the node is deleted" type="boolean">
<value>1</value>
</field>
<field var="pubsub#notify_retract" label="Whether to notify subscribers when items are removed from the node" type="boolean">
<value>1</value>
</field>
<field label="Specify whose JID to include as the publisher of items" var="pubsub#itemreply" type="list-single">
<option label="Include the node owner's JID">
<value>owner</value>
</option>
<option label="Include the item publisher's JID">
<value>publisher</value>
</option>
<option label="Don't include any JID with items">
<value>none</value>
</option>
<value>none</value>
</field>
</x>
</configure>
</pubsub>
</iq>
Romeo sends:
<iq id="a73aac09-74be-4ee2-97e5-571bbdbcd956" type="set">
<pubsub xmlns="http://jabber.org/protocol/pubsub#owner">
<configure node="http://jabber.org/protocol/tune">
<x xmlns="jabber:x:data" type="submit">
<field var="FORM_TYPE" type="hidden">
<value>http://jabber.org/protocol/pubsub#node_config</value>
</field>
<field var="pubsub#title" type="text-single" label="Title">
<value>Nice tunes</value>
</field>
<field var="pubsub#description" type="text-single" label="Description"/>
<field var="pubsub#type" type="text-single" label="The type of node data, usually specified by the namespace of the payload (if any)"/>
<field var="pubsub#max_items" type="text-single" label="Max # of items to persist">
<validate xmlns="http://jabber.org/protocol/xdata-validate" datatype="pubsub:integer-or-max">
<range min="1" max="256"/>
</validate>
<value>1</value>
</field>
<field var="pubsub#persist_items" type="boolean" label="Persist items to storage">
<value>1</value>
</field>
<field var="pubsub#access_model" type="list-single" label="Specify the subscriber model">
<option label="authorize">
<value>authorize</value>
</option>
<option label="open">
<value>open</value>
</option>
<option label="presence">
<value>presence</value>
</option>
<option label="roster">
<value>roster</value>
</option>
<option label="whitelist">
<value>whitelist</value>
</option>
<value>presence</value>
</field>
<field var="pubsub#publish_model" type="list-single" label="Specify the publisher model">
<option label="publishers">
<value>publishers</value>
</option>
<option label="subscribers">
<value>subscribers</value>
</option>
<option label="open">
<value>open</value>
</option>
<value>publishers</value>
</field>
<field type='list-single' var='pubsub#send_last_published_item'>
<value>never</value>
</field>
<field var="pubsub#deliver_notifications" type="boolean" label="Whether to deliver event notifications">
<value>1</value>
</field>
<field var="pubsub#deliver_payloads" type="boolean" label="Whether to deliver payloads with event notifications">
<value>1</value>
</field>
<field var="pubsub#notification_type" type="list-single" label="Specify the delivery style for notifications">
<option label="Messages of type normal">
<value>normal</value>
</option>
<option label="Messages of type headline">
<value>headline</value>
</option>
<value>headline</value>
</field>
<field var="pubsub#notify_delete" type="boolean" label="Whether to notify subscribers when the node is deleted">
<value>1</value>
</field>
<field var="pubsub#notify_retract" type="boolean" label="Whether to notify subscribers when items are removed from the node">
<value>1</value>
</field>
<field var="pubsub#itemreply" type="boolean">
<value>none</value>
</field>
</x>
</configure>
</pubsub>
</iq>
Romeo receives:
<iq id="a73aac09-74be-4ee2-97e5-571bbdbcd956" type="result"/>
Romeo sends:
<iq id="ab0e92d2-c06b-4987-9d45-f9f9e7721709" type="get">
<query xmlns="http://jabber.org/protocol/disco#items"/>
</iq>
Romeo receives:
<iq id="ab0e92d2-c06b-4987-9d45-f9f9e7721709" type="result">
<query xmlns="http://jabber.org/protocol/disco#items">
<item name="Nice tunes" node="http://jabber.org/protocol/tune" jid="${Romeo's JID}"/>
</query>
</iq>
Romeo sends:
<iq id="67eb1f47-1e69-4cb3-91e2-4d5943e72d4c" type="set">
<pubsub xmlns="http://jabber.org/protocol/pubsub">
<publish node="http://jabber.org/protocol/tune">
<item id="current">
<tune xmlns="http://jabber.org/protocol/tune"/>
</item>
</publish>
<publish-options>
<x xmlns="jabber:x:data">
<field var="FORM_TYPE" type="hidden">
<value>http://jabber.org/protocol/pubsub#publish-options</value>
</field>
<field var="pubsub#access_model">
<value>whitelist</value>
</field>
</x>
</publish-options>
</pubsub>
</iq>
Romeo receives:
<iq type='error' id='67eb1f47-1e69-4cb3-91e2-4d5943e72d4c'>
<error type='cancel'>
<conflict xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>
<text xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'>Field does not match: access_model</text>
<precondition-not-met xmlns='http://jabber.org/protocol/pubsub#errors'/>
</error>
</iq>
Romeo disconnects