Class: Facebook::Client

Inherits:
Object show all
Includes:
Ramaze::Trinity
Defined in:
lib/ramaze/contrib/facebook/facebook.rb

Instance Method Summary collapse

Constructor Details

#initialize(keepalive = true) ⇒ Client

Returns a new instance of Client.



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# File 'lib/ramaze/contrib/facebook/facebook.rb', line 26

def initialize keepalive = true
  @keepalive = keepalive
  @proxies = {}
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/ramaze/contrib/facebook/facebook.rb', line 94

def [] key
  params[key]
end

#addurl(goto = '/') ⇒ Object 



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# File 'lib/ramaze/contrib/facebook/facebook.rb', line 108

def addurl goto = '/'
  "http://apps.facebook.com/add.php?api_key=#{KEY}&next=#{CGI.escape '?next='+goto}"
end

#call(method, opts = {}) ⇒ Object 



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# File 'lib/ramaze/contrib/facebook/facebook.rb', line 35

def call method, opts = {}
  args = { :api_key => KEY,
           :call_id => Time.now.to_f,
           :format => 'JSON',
           :v => '1.0',
           :session_key => params[:session_key] || SESSION,
           :method => method }.merge(opts).map{ |k,v|
                                                "#{k}=" + case v
                                                          when Hash
                                                            v.to_json
                                                          when Array
                                                            v.join(',')
                                                          else
                                                            v.to_s
                                                          end
                                              }.sort

  data = Array["sig=#{Digest::MD5.hexdigest(args.join+SECRET)}", *args].join('&')

  begin
    ret = post(data)
  rescue Errno::ECONNRESET, Errno::EPIPE
    @server = connect
    retry
  end while ret.empty? and @server = connect

  ret = case
        when ret == 'true';    true
        when ret == 'false';   false
        when ret[0..0] == '"'; ret[1..-2]
        else
          begin
            JSON::parse(ret)
          rescue JSON::ParserError
            puts "Error parsing #{ret.inspect}"
            raise
          end
        end

  unless method == 'fql.query'
    ret = ret.first if ret.is_a? Array and ret.size == 1 and ret.first.is_a? Hash
  end

  raise Facebook::Error, ret['error_msg'] if ret.is_a? Hash and ret['error_code']

  ret
ensure
  unless @keepalive
    @server.close
    @server = nil
  end
end

#params ⇒ Object 



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# File 'lib/ramaze/contrib/facebook/facebook.rb', line 112

def params
  return {} unless valid?
  request['facebook'] ||= \
    request.params.inject({}) { |h,(k,v)|
      next h unless k =~ /^fb_sig_(.+)$/
      k = $1.to_sym

      case k.to_s
      when 'friends'
        h[k] = v.split(',').map{|e|e.to_i}
      when /time$/
        h[k] = Time.at(v.to_f)
      when 'expires'
        v = v.to_i
        h[k] = v>0 ? Time.at(v) : v
      when 'user'
        h[k] = v.to_i
      when /^(position_|in_|is_|added)/
        h[k] = v=='1'
      else
        h[k] = v
      end
      h
    }
end

#redirect(url) ⇒ Object 



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# File 'lib/ramaze/contrib/facebook/facebook.rb', line 98

def redirect url
  url[0,0] = URL unless url =~ /^http/
  if respond_to?(:response)
    response.build "<fb:redirect url='#{url}'/>"
    throw :respond
  else
    "<fb:redirect url='#{url}'/>"
  end
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ramaze/contrib/facebook/facebook.rb', line 88

def valid?
  return false unless respond_to?(:request) and not request['fb_sig'].nil?
  request['facebook.valid?'] ||= \
    request['fb_sig'] == Digest::MD5.hexdigest(request.params.map{|k,v| "#{$1}=#{v}" if k =~ /^fb_sig_(.+)$/ }.compact.sort.join+SECRET)
end