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# encoding: UTF-8
require 'log4r'
require 'net/http'
require 'net/https'
require 'uri'
module Mauve
# Interface to the Bytemark calendar.
#
# Nota Bene that this does not include a chaching mechanism. Some caching
# is implemented in the Person object.
#
# @see Mauve::Person
# @author yann Golanski.
class CalendarInterface
TIMEOUT = 7
public
# Gets a list of ssologin on support.
#
# Class method.
#
# @param [String] url A Calendar API url.
# @return [Array] A list of all the username on support.
def self.get_users_on_support(url)
result = get_URL(url)
logger = Log4r::Logger.new "Mauve::CalendarInterface"
logger.debug("Cheching who is on support: #{result}")
return result
end
# Check to see if the user is on support.
#
# Class method.
#
# @param [String] url A Calendar API url.
# @param [String] usr User single sign on.
# @return [Boolean] True if on support, false otherwise.
def self.is_user_on_support?(url, usr)
logger = Log4r::Logger.new "Mauve::CalendarInterface"
list = get_URL(url)
if true == list.include?("nobody")
logger.error("Nobody is on support thus alerts are ignored.")
return false
end
result = list.include?(usr)
logger.debug("Cheching if #{usr} is on support: #{result}")
return result
end
# Check to see if the user is on holiday.
#
# Class method.
#
# @param [String] url A Calendar API url.
# @param [String] usr User single sign on.
# @return [Boolean] True if on holiday, false otherwise.
def self.is_user_on_holiday?(url, usr)
list = get_URL(url)
return false if true == list.nil? or true == list.empty?
pattern = /[\d]{4}-[\d]{2}-[\d]{2}\s[\d]{2}:[\d]{2}:[\d]{2}/
result = (list[0].match(pattern))? true : false
logger = Log4r::Logger.new "Mauve::CalendarInterface"
logger.debug("Cheching if #{usr} is on holiday: #{result}")
return result
end
private
# Gets a URL from the wide web.
#
# Must NOT crash Mauveserver.
#
# Class method.
#
# @TODO: boot this in its own class since list of ips will need it too.
#
# @param [String] url A Calendar API url.
# @retur [Array] An array of strings, each newline creates an new item.
def self.get_URL (uri_str, limit = 11)
logger = Log4r::Logger.new "Mauve::CalendarInterface"
if 0 == limit
logger.warn("HTTP redirect deeper than 11 on #{uri_str}.")
return false
end
begin
uri_str = 'http://' + uri_str unless uri_str.match(uri_str)
url = URI.parse(uri_str)
http = Net::HTTP.new(url.host, url.port)
http.open_timeout = TIMEOUT
http.read_timeout = TIMEOUT
if (url.scheme == "https")
http.use_ssl = true
http.verify_mode = OpenSSL::SSL::VERIFY_NONE
end
response = nil
if nil == url.query
response = http.start { http.get(url.path) }
else
response = http.start { http.get("#{url.path}?#{url.query}") }
end
case response
when Net::HTTPRedirection
then
newURL = response['location'].match(/^http/)?
response['Location']:
uri_str+response['Location']
self.getURL(newURL, limit-1)
else
return response.body.split("\n")
end
rescue Errno::EHOSTUNREACH => ex
logger.warn("no route to host.")
return Array.new
rescue Timeout::Error => ex
logger.warn("time out reached.")
return Array.new
rescue ArgumentError => ex
unless uri_str.match(/\/$/)
logger.debug("Potential missing '/' at the end of hostname #{uri_str}")
uri_str += "/"
retry
else
str = "ArgumentError raise: #{ex.message} #{ex.backtrace.join("\n")}"
logger.fatal(str)
return Array.new
#raise ex
end
rescue => ex
str = "ArgumentError raise: #{ex.message} #{ex.backtrace.join("\n")}"
logger.fatal(str)
return Array.new
#raise ex
end
end
end
end
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