SleekXMPP/sleekxmpp/plugins/xep_0004.py
2010-06-01 22:07:52 +08:00

427 lines
12 KiB
Python

"""
SleekXMPP: The Sleek XMPP Library
Copyright (C) 2007 Nathanael C. Fritz
This file is part of SleekXMPP.
SleekXMPP is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
SleekXMPP is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with SleekXMPP; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
"""
from . import base
import logging
from xml.etree import cElementTree as ET
import copy
#TODO support item groups and results
class xep_0004(base.base_plugin):
def plugin_init(self):
self.xep = '0004'
self.description = 'Data Forms'
self.xmpp.add_handler("<message><x xmlns='jabber:x:data' /></message>", self.handler_message_xform)
def post_init(self):
base.base_plugin.post_init(self)
self.xmpp.plugin['xep_0030'].add_feature('jabber:x:data')
def handler_message_xform(self, xml):
object = self.handle_form(xml)
self.xmpp.event("message_form", object)
def handler_presence_xform(self, xml):
object = self.handle_form(xml)
self.xmpp.event("presence_form", object)
def handle_form(self, xml):
xmlform = xml.find('{jabber:x:data}x')
object = self.buildForm(xmlform)
self.xmpp.event("message_xform", object)
return object
def buildForm(self, xml):
form = Form(ftype=xml.attrib['type'])
form.fromXML(xml)
return form
def makeForm(self, ftype='form', title='', instructions=''):
return Form(self.xmpp, ftype, title, instructions)
class FieldContainer(object):
def __init__(self, stanza = 'form'):
self.fields = []
self.field = {}
self.stanza = stanza
def addField(self, var, ftype='text-single', label='', desc='', required=False, value=None):
self.field[var] = FormField(var, ftype, label, desc, required, value)
self.fields.append(self.field[var])
return self.field[var]
def buildField(self, xml):
self.field[xml.get('var', '__unnamed__')] = FormField(xml.get('var', '__unnamed__'), xml.get('type', 'text-single'))
self.fields.append(self.field[xml.get('var', '__unnamed__')])
self.field[xml.get('var', '__unnamed__')].buildField(xml)
def buildContainer(self, xml):
self.stanza = xml.tag
for field in xml.findall('{jabber:x:data}field'):
self.buildField(field)
def getXML(self, ftype):
container = ET.Element(self.stanza)
for field in self.fields:
container.append(field.getXML(ftype))
return container
class Form(FieldContainer):
types = ('form', 'submit', 'cancel', 'result')
def __init__(self, xmpp=None, ftype='form', title='', instructions=''):
if not ftype in self.types:
raise ValueError("Invalid Form Type")
FieldContainer.__init__(self)
self.xmpp = xmpp
self.type = ftype
self.title = title
self.instructions = instructions
self.reported = []
self.items = []
def merge(self, form2):
form1 = Form(ftype=self.type)
form1.fromXML(self.getXML(self.type))
for field in form2.fields:
if not field.var in form1.field:
form1.addField(field.var, field.type, field.label, field.desc, field.required, field.value)
else:
form1.field[field.var].value = field.value
for option, label in field.options:
if (option, label) not in form1.field[field.var].options:
form1.fields[field.var].addOption(option, label)
return form1
def copy(self):
newform = Form(ftype=self.type)
newform.fromXML(self.getXML(self.type))
return newform
def update(self, form):
values = form.getValues()
for var in values:
if var in self.fields:
self.fields[var].setValue(self.fields[var])
def getValues(self):
result = {}
for field in self.fields:
value = field.value
if len(value) == 1:
value = value[0]
result[field.var] = value
return result
def setValues(self, values={}):
for field in values:
if field in self.field:
if isinstance(values[field], list) or isinstance(values[field], tuple):
for value in values[field]:
self.field[field].setValue(value)
else:
self.field[field].setValue(values[field])
def fromXML(self, xml):
self.buildForm(xml)
def addItem(self):
newitem = FieldContainer('item')
self.items.append(newitem)
return newitem
def buildItem(self, xml):
newitem = self.addItem()
newitem.buildContainer(xml)
def addReported(self):
reported = FieldContainer('reported')
self.reported.append(reported)
return reported
def buildReported(self, xml):
reported = self.addReported()
reported.buildContainer(xml)
def setTitle(self, title):
self.title = title
def setInstructions(self, instructions):
self.instructions = instructions
def setType(self, ftype):
self.type = ftype
def getXMLMessage(self, to):
msg = self.xmpp.makeMessage(to)
msg.append(self.getXML())
return msg
def buildForm(self, xml):
self.type = xml.get('type', 'form')
if xml.find('{jabber:x:data}title') is not None:
self.setTitle(xml.find('{jabber:x:data}title').text)
if xml.find('{jabber:x:data}instructions') is not None:
self.setInstructions(xml.find('{jabber:x:data}instructions').text)
for field in xml.findall('{jabber:x:data}field'):
self.buildField(field)
for reported in xml.findall('{jabber:x:data}reported'):
self.buildReported(reported)
for item in xml.findall('{jabber:x:data}item'):
self.buildItem(item)
#def getXML(self, tostring = False):
def getXML(self, ftype=None):
if ftype:
self.type = ftype
form = ET.Element('{jabber:x:data}x')
form.attrib['type'] = self.type
if self.title and self.type in ('form', 'result'):
title = ET.Element('{jabber:x:data}title')
title.text = self.title
form.append(title)
if self.instructions and self.type == 'form':
instructions = ET.Element('{jabber:x:data}instructions')
instructions.text = self.instructions
form.append(instructions)
for field in self.fields:
form.append(field.getXML(self.type))
for reported in self.reported:
form.append(reported.getXML('{jabber:x:data}reported'))
for item in self.items:
form.append(item.getXML(self.type))
#if tostring:
# form = self.xmpp.tostring(form)
return form
def getXHTML(self):
form = ET.Element('{http://www.w3.org/1999/xhtml}form')
if self.title:
title = ET.Element('h2')
title.text = self.title
form.append(title)
if self.instructions:
instructions = ET.Element('p')
instructions.text = self.instructions
form.append(instructions)
for field in self.fields:
form.append(field.getXHTML())
for field in self.reported:
form.append(field.getXHTML())
for field in self.items:
form.append(field.getXHTML())
return form
def makeSubmit(self):
self.setType('submit')
class FormField(object):
types = ('boolean', 'fixed', 'hidden', 'jid-multi', 'jid-single', 'list-multi', 'list-single', 'text-multi', 'text-private', 'text-single')
listtypes = ('jid-multi', 'jid-single', 'list-multi', 'list-single')
lbtypes = ('fixed', 'text-multi')
def __init__(self, var, ftype='text-single', label='', desc='', required=False, value=None):
if not ftype in self.types:
raise ValueError("Invalid Field Type")
self.type = ftype
self.var = var
self.label = label
self.desc = desc
self.options = []
self.required = False
self.value = []
if self.type in self.listtypes:
self.islist = True
else:
self.islist = False
if self.type in self.lbtypes:
self.islinebreak = True
else:
self.islinebreak = False
if value:
self.setValue(value)
def addOption(self, value, label):
if self.islist:
self.options.append((value, label))
else:
raise ValueError("Cannot add options to non-list type field.")
def setTrue(self):
if self.type == 'boolean':
self.value = [True]
def setFalse(self):
if self.type == 'boolean':
self.value = [False]
def require(self):
self.required = True
def setDescription(self, desc):
self.desc = desc
def setValue(self, value):
if self.type == 'boolean':
if value in ('1', 1, True, 'true', 'True', 'yes'):
value = True
else:
value = False
if self.islinebreak and value is not None:
self.value += value.split('\n')
else:
if len(self.value) and (not self.islist or self.type == 'list-single'):
self.value = [value]
else:
self.value.append(value)
def delValue(self, value):
if type(self.value) == type([]):
try:
idx = self.value.index(value)
if idx != -1:
self.value.pop(idx)
except ValueError:
pass
else:
self.value = ''
def setAnswer(self, value):
self.setValue(value)
def buildField(self, xml):
self.type = xml.get('type', 'text-single')
self.label = xml.get('label', '')
for option in xml.findall('{jabber:x:data}option'):
self.addOption(option.find('{jabber:x:data}value').text, option.get('label', ''))
for value in xml.findall('{jabber:x:data}value'):
self.setValue(value.text)
if xml.find('{jabber:x:data}required') is not None:
self.require()
if xml.find('{jabber:x:data}desc') is not None:
self.setDescription(xml.find('{jabber:x:data}desc').text)
def getXML(self, ftype):
field = ET.Element('{jabber:x:data}field')
if ftype != 'result':
field.attrib['type'] = self.type
if self.type != 'fixed':
if self.var:
field.attrib['var'] = self.var
if self.label:
field.attrib['label'] = self.label
if ftype == 'form':
for option in self.options:
optionxml = ET.Element('{jabber:x:data}option')
optionxml.attrib['label'] = option[1]
optionval = ET.Element('{jabber:x:data}value')
optionval.text = option[0]
optionxml.append(optionval)
field.append(optionxml)
if self.required:
required = ET.Element('{jabber:x:data}required')
field.append(required)
if self.desc:
desc = ET.Element('{jabber:x:data}desc')
desc.text = self.desc
field.append(desc)
for value in self.value:
valuexml = ET.Element('{jabber:x:data}value')
if value is True or value is False:
if value:
valuexml.text = '1'
else:
valuexml.text = '0'
else:
valuexml.text = value
field.append(valuexml)
return field
def getXHTML(self):
field = ET.Element('div', {'class': 'xmpp-xforms-%s' % self.type})
if self.label:
label = ET.Element('p')
label.text = "%s: " % self.label
else:
label = ET.Element('p')
label.text = "%s: " % self.var
field.append(label)
if self.type == 'boolean':
formf = ET.Element('input', {'type': 'checkbox', 'name': self.var})
if len(self.value) and self.value[0] in (True, 'true', '1'):
formf.attrib['checked'] = 'checked'
elif self.type == 'fixed':
formf = ET.Element('p')
try:
formf.text = ', '.join(self.value)
except:
pass
field.append(formf)
formf = ET.Element('input', {'type': 'hidden', 'name': self.var})
try:
formf.text = ', '.join(self.value)
except:
pass
elif self.type == 'hidden':
formf = ET.Element('input', {'type': 'hidden', 'name': self.var})
try:
formf.text = ', '.join(self.value)
except:
pass
elif self.type in ('jid-multi', 'list-multi'):
formf = ET.Element('select', {'name': self.var})
for option in self.options:
optf = ET.Element('option', {'value': option[0], 'multiple': 'multiple'})
optf.text = option[1]
if option[1] in self.value:
optf.attrib['selected'] = 'selected'
formf.append(option)
elif self.type in ('jid-single', 'text-single'):
formf = ET.Element('input', {'type': 'text', 'name': self.var})
try:
formf.attrib['value'] = ', '.join(self.value)
except:
pass
elif self.type == 'list-single':
formf = ET.Element('select', {'name': self.var})
for option in self.options:
optf = ET.Element('option', {'value': option[0]})
optf.text = option[1]
if not optf.text:
optf.text = option[0]
if option[1] in self.value:
optf.attrib['selected'] = 'selected'
formf.append(optf)
elif self.type == 'text-multi':
formf = ET.Element('textarea', {'name': self.var})
try:
formf.text = ', '.join(self.value)
except:
pass
if not formf.text:
formf.text = ' '
elif self.type == 'text-private':
formf = ET.Element('input', {'type': 'password', 'name': self.var})
try:
formf.attrib['value'] = ', '.join(self.value)
except:
pass
label.append(formf)
return field