core, jp: component handling + client handling refactoring: - SàT can now handle components - plugin have now a "modes" key in PLUGIN_INFO where they declare if they can be used with clients and or components. They default to be client only. - components are really similar to clients, but with some changes in behaviour: * component has "entry point", which is a special plugin with a componentStart method, which is called just after component is connected * trigger end with a different suffixes (e.g. profileConnected vs profileConnectedComponent), so a plugin which manage both clients and components can have different workflow * for clients, only triggers of plugins handling client mode are launched * for components, only triggers of plugins needed in dependencies are launched. They all must handle component mode. * component have a sendHistory attribute (False by default) which can be set to True to allow saving sent messages into history * for convenience, "client" is still used in method even if it can now be a component * a new "component" boolean attribute tells if we have a component or a client * components have to add themselve Message protocol * roster and presence protocols are not added for components * component default port is 5347 (which is Prosody's default port) - asyncCreateProfile has been renamed for profileCreate, both to follow new naming convention and to prepare the transition to fully asynchronous bridge - createProfile has a new "component" attribute. When used to create a component, it must be set to a component entry point - jp: added --component argument to profile/create - disconnect bridge method is now asynchronous, this way frontends can know when disconnection is finished - new PI_* constants for PLUGIN_INFO values (not used everywhere yet) - client/component connection workflow has been moved to their classes instead of being a host methods - host.messageSend is now client.sendMessage, and former client.sendMessage is now client.sendMessageData. - identities are now handled in client.identities list, so it can be updated dynamically by plugins (in the future, frontends should be able to update them too through bridge) - profileConnecting* profileConnected* profileDisconnected* and getHandler now all use client instead of profile

--- a/src/core/constants.py	Tue Feb 07 00:15:03 2017 +0100
+++ b/src/core/constants.py	Sun Feb 12 17:55:43 2017 +0100
@@ -47,6 +47,8 @@
     XMPP_C2S_PORT = 5222
     XMPP_KEEP_ALIFE = 180
     XMPP_MAX_RETRIES = 2
+    # default port used on Prosody, may differ on other servers
+    XMPP_COMPONENT_PORT = 5347
 
 
     ## Parameters ##
@@ -171,6 +173,13 @@
 
     ## Plugins ##
 
+    # PLUGIN_INFO keys
+    # XXX: we use PI instead of PLUG_INFO which would normally be used
+    #      to make the header more readable
+    PI_IMPORT_NAME = u'import_name'
+    PI_DEPENDENCIES = u'dependencies'
+    PI_RECOMMENDATIONS = u'recommendations'
+
     # Types
     PLUG_TYPE_XEP = "XEP"
     PLUG_TYPE_MISC = "MISC"
@@ -178,7 +187,12 @@
     PLUG_TYPE_SEC = "SEC"
     PLUG_TYPE_SYNTAXE = "SYNTAXE"
     PLUG_TYPE_BLOG = "BLOG"
+    PLUG_TYPE_ENTRY_POINT = "ENTRY_POINT"
 
+    # Modes
+    PLUG_MODE_CLIENT = "client"
+    PLUG_MODE_COMPONENT = "component"
+    PLUG_MODE_DEFAULT = (PLUG_MODE_CLIENT,)
 
     # names of widely used plugins
     TEXT_CMDS = 'TEXT-COMMANDS'