1 files changed, 392 insertions, 0 deletions
diff --git a/sleekxmpp/plugins/xep_0004.py b/sleekxmpp/plugins/xep_0004.py
new file mode 100644
index 0000000..e8dba74
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0004.py
@@ -0,0 +1,392 @@
+"""
+	SleekXMPP: The Sleek XMPP Library
+	Copyright (C) 2010 Nathanael C. Fritz, Lance J.T. Stout
+	This file is part of SleekXMPP.
+
+	See the file LICENSE for copying permission.
+"""
+
+import logging
+import copy
+from . import base
+from .. xmlstream.handler.callback import Callback
+from .. xmlstream.matcher.xpath import MatchXPath
+from .. xmlstream.stanzabase import registerStanzaPlugin, ElementBase, ET, JID
+from .. stanza.message import Message
+import types
+
+
+class Form(ElementBase):
+	namespace = 'jabber:x:data'
+	name = 'x'
+	plugin_attrib = 'form'
+	interfaces = set(('fields', 'instructions', 'items', 'reported', 'title', 'type', 'values'))
+	sub_interfaces = set(('title',))
+	form_types = set(('cancel', 'form', 'result', 'submit'))
+
+	def __init__(self, *args, **kwargs):
+		title = None
+		if 'title' in kwargs:
+			title = kwargs['title']
+			del kwargs['title']
+		ElementBase.__init__(self, *args, **kwargs)
+		if title is not None:
+			self['title'] = title
+		self.field = FieldAccessor(self)
+	
+	def setup(self, xml=None):
+		if ElementBase.setup(self, xml): #if we had to generate xml
+			self['type'] = 'form'
+
+	def addField(self, var='', ftype=None, label='', desc='', required=False, value=None, options=None, **kwargs):
+		kwtype = kwargs.get('type', None)
+		if kwtype is None:
+			kwtype = ftype
+
+		field = FormField(parent=self)
+		field['var'] = var
+		field['type'] = kwtype
+		field['label'] = label
+		field['desc'] = desc
+		field['required'] = required
+		field['value'] = value
+		if options is not None:
+			field['options'] = options
+		return field
+
+	def getXML(self, type='submit'):
+		logging.warning("Form.getXML() is deprecated API compatibility with plugins/old_0004.py")
+		return self.xml
+	
+	def fromXML(self, xml):
+		logging.warning("Form.fromXML() is deprecated API compatibility with plugins/old_0004.py")
+		n = Form(xml=xml)
+		return n
+
+	def addItem(self, values):
+		itemXML = ET.Element('{%s}item' % self.namespace)
+		self.xml.append(itemXML)
+		reported_vars = self['reported'].keys()
+		for var in reported_vars:
+			fieldXML = ET.Element('{%s}field' % FormField.namespace)
+			itemXML.append(fieldXML)
+			field = FormField(xml=fieldXML)
+			field['var'] = var
+			field['value'] = values.get(var, None)
+
+	def addReported(self, var, ftype=None, label='', desc='', **kwargs):
+		kwtype = kwargs.get('type', None)
+		if kwtype is None:
+			kwtype = ftype
+		reported = self.xml.find('{%s}reported' % self.namespace)
+		if reported is None:
+			reported = ET.Element('{%s}reported' % self.namespace)
+			self.xml.append(reported)
+		fieldXML = ET.Element('{%s}field' % FormField.namespace)
+		reported.append(fieldXML)
+		field = FormField(xml=fieldXML)
+		field['var'] = var
+		field['type'] = kwtype
+		field['label'] = label
+		field['desc'] = desc
+		return field
+
+	def cancel(self):
+		self['type'] = 'cancel'
+
+	def delFields(self):
+		fieldsXML = self.xml.findall('{%s}field' % FormField.namespace)
+		for fieldXML in fieldsXML:
+			self.xml.remove(fieldXML)
+
+	def delInstructions(self):
+		instsXML = self.xml.findall('{%s}instructions')
+		for instXML in instsXML:
+			self.xml.remove(instXML)
+
+	def delItems(self):
+		itemsXML = self.xml.find('{%s}item' % self.namespace)
+		for itemXML in itemsXML:
+			self.xml.remove(itemXML)
+
+	def delReported(self):
+		reportedXML = self.xml.find('{%s}reported' % self.namespace)
+		if reportedXML is not None:
+			self.xml.remove(reportedXML)
+	
+	def getFields(self, use_dict=False):
+		fields = {} if use_dict else []
+		fieldsXML = self.xml.findall('{%s}field' % FormField.namespace)    
+		for fieldXML in fieldsXML:
+			field = FormField(xml=fieldXML)
+			if use_dict:
+				fields[field['var']] = field
+			else:
+				fields.append((field['var'], field))
+		return fields
+
+	def getInstructions(self):
+		instructions = ''
+		instsXML = self.xml.findall('{%s}instructions' % self.namespace)
+		return "\n".join([instXML.text for instXML in instsXML])
+
+	def getItems(self):
+		items = []
+		itemsXML = self.xml.findall('{%s}item' % self.namespace)
+		for itemXML in itemsXML:
+			item = {}
+			fieldsXML = itemXML.findall('{%s}field' % FormField.namespace)
+			for fieldXML in fieldsXML:
+				field = FormField(xml=fieldXML)
+				item[field['var']] = field['value']
+			items.append(item)
+		return items
+
+	def getReported(self):
+		fields = {}
+		fieldsXML = self.xml.findall('{%s}reported/{%s}field' % (self.namespace, 
+									 FormField.namespace))
+		for fieldXML in fieldsXML:
+			field = FormField(xml=fieldXML)
+			fields[field['var']] = field
+		return fields
+
+	def getValues(self):
+		values = {}
+		fields = self.getFields(use_dict=True)
+		for var in fields:
+			values[var] = fields[var]['value']
+		return values
+
+	def reply(self):
+		if self['type'] == 'form':
+			self['type'] = 'submit'
+		elif self['type'] == 'submit':
+			self['type'] = 'result'
+
+	def setFields(self, fields, default=None):
+		del self['fields']
+		for field_data in fields:
+			var = field_data[0]
+			field = field_data[1]
+			field['var'] = var
+
+			self.addField(**field)
+
+	def setInstructions(self, instructions):
+		del self['instructions']
+		if instructions in [None, '']:
+			return
+		instructions = instructions.split('\n')
+		for instruction in instructions:
+			inst = ET.Element('{%s}instructions' % self.namespace)
+			inst.text = instruction
+			self.xml.append(inst)
+
+	def setItems(self, items):
+		for item in items:
+			self.addItem(item)
+
+	def setReported(self, reported, default=None):
+		for var in reported:
+			field = reported[var]
+			field['var'] = var
+			self.addReported(var, **field)
+
+	def setValues(self, values):
+		fields = self.getFields(use_dict=True)
+		for field in values:
+			fields[field]['value'] = values[field]
+	
+	def merge(self, other):
+		new = copy.copy(self)
+		if type(other) == types.DictType:
+			new.setValues(other)
+			return new
+		nfields = new.getFields(use_dict=True)
+		ofields = other.getFields(use_dict=True)
+		nfields.update(ofields)
+		new.setFields([(x, nfields[x]) for x in nfields])
+		return new
+
+class FieldAccessor(object):
+	def __init__(self, form):
+		self.form = form
+	
+	def __getitem__(self, key):
+		return self.form.getFields(use_dict=True)[key]
+
+	def __contains__(self, key):
+		return key in self.form.getFields(use_dict=True)
+
+	def has_key(self, key):
+		return key in self.form.getFields(use_dict=True)
+
+
+class FormField(ElementBase):
+	namespace = 'jabber:x:data'
+	name = 'field'
+	plugin_attrib = 'field'
+	interfaces = set(('answer', 'desc', 'required', 'value', 'options', 'label', 'type', 'var'))
+	sub_interfaces = set(('desc',))
+	field_types = set(('boolean', 'fixed', 'hidden', 'jid-multi', 'jid-single', 'list-multi',
+			   'list-single', 'text-multi', 'text-private', 'text-single'))
+	multi_value_types = set(('hidden', 'jid-multi', 'list-multi', 'text-multi'))
+	multi_line_types = set(('hidden', 'text-multi'))
+	option_types = set(('list-multi', 'list-single'))
+	true_values = set((True, '1', 'true'))
+
+	def addOption(self, label='', value=''):
+		if self['type'] in self.option_types:
+			opt = FieldOption(parent=self)
+			opt['label'] = label
+			opt['value'] = value
+		else:
+			raise ValueError("Cannot add options to a %s field." % self['type'])
+
+	def delOptions(self):
+		optsXML = self.xml.findall('{%s}option' % self.namespace)
+		for optXML in optsXML:
+			self.xml.remove(optXML)
+
+	def delRequired(self):
+		reqXML = self.xml.find('{%s}required' % self.namespace)
+		if reqXML is not None:
+			self.xml.remove(reqXML)
+
+	def delValue(self):
+		valsXML = self.xml.findall('{%s}value' % self.namespace)
+		for valXML in valsXML:
+			self.xml.remove(valXML)
+
+	def getAnswer(self):
+		return self.getValue()
+
+	def getOptions(self):
+		options = []
+		optsXML = self.xml.findall('{%s}option' % self.namespace)
+		for optXML in optsXML:
+			opt = FieldOption(xml=optXML)
+			options.append({'label': opt['label'], 'value':opt['value']})
+		return options
+
+	def getRequired(self):
+		reqXML = self.xml.find('{%s}required' % self.namespace)
+		return reqXML is not None
+
+	def getValue(self):
+		valsXML = self.xml.findall('{%s}value' % self.namespace)
+		if len(valsXML) == 0:
+			return None
+		elif self['type'] == 'boolean':
+			return valsXML[0].text in self.true_values
+		elif self['type'] in self.multi_value_types:
+			values = []
+			for valXML in valsXML:
+				if valXML.text is None:
+					valXML.text = ''
+				values.append(valXML.text)
+			if self['type'] == 'text-multi':
+				values = "\n".join(values)
+			return values
+		else:
+			return valsXML[0].text
+
+	def setAnswer(self, answer):
+		self.setValue(answer)
+
+	def setFalse(self):
+		self.setValue(False)
+
+	def setOptions(self, options):
+		for value in options:
+			if isinstance(value, dict):
+				self.addOption(**value)
+			else:
+				self.addOption(value=value)
+
+	def setRequired(self, required):
+		exists = self.getRequired()
+		if not exists and required:
+			self.xml.append(ET.Element('{%s}required' % self.namespace))
+		elif exists and not required:
+			self.delRequired()
+
+	def setTrue(self):
+		self.setValue(True)
+
+	def setValue(self, value):
+		self.delValue()
+		valXMLName = '{%s}value' % self.namespace
+
+		if self['type'] == 'boolean':
+			if value in self.true_values:
+				valXML = ET.Element(valXMLName)
+				valXML.text = '1'
+				self.xml.append(valXML)
+			else:
+				valXML = ET.Element(valXMLName)
+				valXML.text = '0'
+				self.xml.append(valXML)
+		elif self['type'] in self.multi_value_types or self['type'] in ['', None]:
+			if self['type'] in self.multi_line_types and isinstance(value, str):
+				value = value.split('\n')
+			if not isinstance(value, list):
+				value = [value]
+			for val in value:
+				if self['type'] in ['', None] and val in self.true_values:
+					val = '1'
+				valXML = ET.Element(valXMLName)
+				valXML.text = val
+				self.xml.append(valXML)
+		else:
+			if isinstance(value, list):
+				raise ValueError("Cannot add multiple values to a %s field." % self['type'])
+			valXML = ET.Element(valXMLName)
+			valXML.text = value
+			self.xml.append(valXML)
+
+
+class FieldOption(ElementBase):
+	namespace = 'jabber:x:data'
+	name = 'option'
+	plugin_attrib = 'option'
+	interfaces = set(('label', 'value'))
+	sub_interfaces = set(('value',))
+
+
+class xep_0004(base.base_plugin):
+	"""
+	XEP-0004: Data Forms
+	"""
+
+	def plugin_init(self):
+		self.xep = '0004'
+		self.description = 'Data Forms'
+
+		self.xmpp.registerHandler(
+			Callback('Data Form',
+				 MatchXPath('{%s}message/{%s}x' % (self.xmpp.default_ns, 
+								   Form.namespace)),
+				 self.handle_form))
+
+		registerStanzaPlugin(FormField, FieldOption)
+		registerStanzaPlugin(Form, FormField)
+		registerStanzaPlugin(Message, Form)
+	
+	def makeForm(self, ftype='form', title='', instructions=''):
+		f = Form()
+		f['type'] = ftype
+		f['title'] = title
+		f['instructions'] = instructions
+		return f
+	
+	def post_init(self):
+		base.base_plugin.post_init(self)
+		self.xmpp.plugin['xep_0030'].add_feature('jabber:x:data')
+
+	def handle_form(self, message):
+		self.xmpp.event("message_xform", message)
+
+	def buildForm(self, xml):
+		return Form(xml=xml)