lib_facebook_stream.rb
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require 'rubygems'
require 'open-uri'
require 'json'
def not_blank?(v)
if v == nil || v == ""
false
else
true
end
end
def save_comment(hub, comment, author_id)
noosferoComment = Comment.new
noosferoComment.title = 'hub-message-facebook'
noosferoComment.source = hub
noosferoComment.body = comment[:message]
noosferoComment.author_id = author_id
noosferoComment.name = comment[:from]
noosferoComment.email = 'admin@localhost.local'
noosferoComment.save!
end
def facebook_comments(hub, author_id, hashtag, pooling_time, token)
pooling_time ||= 10
token ||= 'CAAD8cd4tMVkBAO3sh2DrzwZCDfeQq9ZAvTz7Jz24ZC26KtMfBoljqaXhD2vBV1zpP0bjrpxXUBzJvKKcFzOm6rMG9Sok7iNVUaxt5iwr7dfMqCvHpMboKpqrqgeLrfCH5ITVTAdezA6ZBSr9iOJrqyCSOYfui0zTmbXJ3FqtshwNRrRy4NPH'
hashtag ||= "#nba"
#Aviso 12/04/2014
#token que só deverá expirar em 59 dias
#https://graph.facebook.com/v1.0/search?q=%23nba&type=post&access_token=CAAD8cd4tMVkBAO3sh2DrzwZCDfeQq9ZAvTz7Jz24ZC26KtMfBoljqaXhD2vBV1zpP0bjrpxXUBzJvKKcFzOm6rMG9Sok7iNVUaxt5iwr7dfMqCvHpMboKpqrqgeLrfCH5ITVTAdezA6ZBSr9iOJrqyCSOYfui0zTmbXJ3FqtshwNRrRy4NPH
#
#removes extra '#'
if hashtag[0,1]=='#'
hashtag = hashtag[1,hashtag.length-1]
end
initialComments = []
firstTime = true
read = 1
url = "https://graph.facebook.com/v1.0/search?q=%23#{hashtag}&type=post&access_token=#{token}"
mostRecent = ""
while true
connected = false
tries = 0
while !connected
begin
tries += 1
file = open(url)
connected = true
tries = 0
rescue => e
puts "Error connecting to facebook: #{e.inspect} "
puts file
sleep (10 + 2 ** tries)
end
end
extractedComments = []
itens = JSON.parse(file.read)['data']
itens.each{|i|
from = ""
message = ""
if not_blank?(i['from']['name'])
from = i['from']['name']
if not_blank?(i['message'])
message += i['message']
else
if not_blank?(i['description'])
message += i['description']
else
if not_blank?(i['caption'])
message += i['caption']
end
end
end
if not_blank?(message)
if mostRecent == "" or mostRecent < i["created_time"]
mostRecent = i["created_time"]
end
extractedComments.push({:from=>from, :message=>message})
end
end
}
extractedComments = extractedComments.uniq
if firstTime
initialComments = extractedComments.clone
firstTime = false
extractedComments.each{|comment|
puts "#{comment[:from]} " + _("said") + ": #{comment[:message]}"
save_comment(hub, comment, author_id)
}
end
# if read == 2
# extractedComments.push({:from=>"Evandro", :message=>"teste"})
# end
newComments = extractedComments - initialComments
newComments = newComments.uniq
initialComments += newComments
initialComments = initialComments.uniq
#y newComments
newComments.each{|comment|
puts "#{comment[:from]} " + _("said") + ": #{comment[:message]}"
save_comment(hub, comment, author_id)
}
# puts url
# puts "Read: #{read} last post #{mostRecent} newComments: #{newComments.length} initialComments: #{initialComments.length} extractedComments: #{extractedComments.length}"
read+=1
sleep(pooling_time)
end
end