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# =XMPP4R - XMPP Library for Ruby
# License:: Ruby's license (see the LICENSE file) or GNU GPL, at your option.
# Website::http://xmpp4r.github.io
require 'xmpp4r/iq'
require 'xmpp4r/base64'
module Jabber
module Vcard
##
# vCard container for User Information
# (can be specified by users themselves, mostly kept on servers)
# (JEP 0054)
class IqVcard < XMPPElement
name_xmlns 'vCard', 'vcard-temp'
force_xmlns true
##
# Initialize a <vCard/> element
# fields:: [Hash] Initialize with keys as XPath element names and values for element texts
def initialize(fields=nil)
super()
unless fields.nil?
fields.each { |name,value|
self[name] = value
}
end
end
##
# Get an elements/fields text
#
# vCards have too much possible children, so ask for them here
# and extract the result with iqvcard.element('...').text
# name:: [String] XPath
def [](name)
text = nil
each_element(name) { |child| text = child.text }
text
end
##
# Set an elements/fields text
# name:: [String] XPath
# text:: [String] Value
def []=(name, text)
xe = self
name.split(/\//).each do |elementname|
# Does the children already exist?
newxe = nil
xe.each_element(elementname) { |child| newxe = child }
if newxe.nil?
# Create a new
xe = xe.add_element(elementname)
else
# Or take existing
xe = newxe
end
end
xe.text = text
end
##
# Get vCard field names
#
# Example:
# ["NICKNAME", "BDAY", "ORG/ORGUNIT", "PHOTO/TYPE", "PHOTO/BINVAL"]
#
# result:: [Array] of [String]
def fields
element_names(self).uniq
end
##
# Get the PHOTO/BINVAL (Avatar picture) field decoded from Base64
# result:: [String] or [nil]
def photo_binval
if (binval = self['PHOTO/BINVAL'])
Base64::decode64(binval)
else
nil
end
end
private
##
# Recursive helper function,
# returns all element names in an array, concatenated
# to their parent's name with a slash
def element_names(xe, prefix='') # :nodoc:
res = []
xe.each_element { |child|
if child.kind_of?(REXML::Element)
children = element_names(child, "#{prefix}#{child.name}/")
if children == []
res.push("#{prefix}#{child.name}")
else
res += children
end
end
}
res
end
end
end
end
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