SleekXMPP/sleekxmpp/plugins/xep_0004.py
Lance Stout de24e9ed45 Lots of XEP-0004 bug fixes.
Forms have default type of 'form'
setFields now uses a list of tuples instead of a dictionary because ordering is important.
getFields defaults to returning a list of tuples, but the use_dict parameter can change that
2010-07-20 12:16:57 -04:00

347 lines
9.5 KiB
Python

"""
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
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 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):
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]
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 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)