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e219c0f976
For now, session_end is the same as disconnected, but once support is added later for stream management, the two events will become distinct. Plugins should add handlers for session_end for cleaning any session state.
90 lines
3.4 KiB
Python
90 lines
3.4 KiB
Python
"""
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SleekXMPP: The Sleek XMPP Library
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Copyright (C) 2010 Nathanael C. Fritz
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This file is part of SleekXMPP.
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See the file LICENSE for copying permission.
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"""
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class base_plugin(object):
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"""
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The base_plugin class serves as a base for user created plugins
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that provide support for existing or experimental XEPS.
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Each plugin has a dictionary for configuration options, as well
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as a name and description.
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The lifecycle of a plugin is:
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1. The plugin is instantiated during registration.
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2. Once the XML stream begins processing, the method
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plugin_init() is called (if the plugin is configured
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as enabled with {'enable': True}).
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3. After all plugins have been initialized, the
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method post_init() is called.
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Recommended event handlers:
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session_start -- Plugins which require the use of the current
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bound JID SHOULD wait for the session_start
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event to perform any initialization (or
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resetting). This is a transitive recommendation,
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plugins that use other plugins which use the
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bound JID should also wait for session_start
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before making such calls.
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session_end -- If the plugin keeps any per-session state,
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such as joined MUC rooms, such state SHOULD
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be cleared when the session_end event is raised.
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Attributes:
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xep -- The XEP number the plugin implements, if any.
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description -- A short description of the plugin, typically
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the long name of the implemented XEP.
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xmpp -- The main SleekXMPP instance.
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config -- A dictionary of custom configuration values.
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The value 'enable' is special and controls
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whether or not the plugin is initialized
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after registration.
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post_initted -- Executed after all plugins have been initialized
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to handle any cross-plugin interactions, such as
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registering service discovery items.
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enable -- Indicates that the plugin is enabled for use and
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will be initialized after registration.
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Methods:
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plugin_init -- Initialize the plugin state.
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post_init -- Handle any cross-plugin concerns.
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"""
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def __init__(self, xmpp, config=None):
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"""
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Instantiate a new plugin and store the given configuration.
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Arguments:
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xmpp -- The main SleekXMPP instance.
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config -- A dictionary of configuration values.
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"""
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if config is None:
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config = {}
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self.xep = 'base'
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self.description = 'Base Plugin'
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self.xmpp = xmpp
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self.config = config
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self.post_inited = False
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self.enable = config.get('enable', True)
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if self.enable:
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self.plugin_init()
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def plugin_init(self):
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"""
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Initialize plugin state, such as registering any stream or
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event handlers, or new stanza types.
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"""
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pass
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def post_init(self):
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"""
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Perform any cross-plugin interactions, such as registering
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service discovery identities or items.
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"""
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self.post_inited = True
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