Class: Tr8n::Utils

Inherits:
Object
  • Object
show all
Defined in:
lib/tr8n/utils.rb

Class Method Summary collapse

Class Method Details

.browser_accepted_locales(request) ⇒ Object

Author: Iain Hecker reference: github.com/iain/http_accept_language



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# File 'lib/tr8n/utils.rb', line 114

def self.browser_accepted_locales(request)
  request.env['HTTP_ACCEPT_LANGUAGE'].split(/\s*,\s*/).collect do |l|
    l += ';q=1.0' unless l =~ /;q=\d+\.\d+$/
    l.split(';q=')
  end.sort do |x,y|
    raise Tr8n::Exception.new("Not correctly formatted") unless x.first =~ /^[a-z\-]+$/i
    y.last.to_f <=> x.last.to_f
  end.collect do |l|
    l.first.downcase.gsub(/-[a-z]+$/i) { |x| x.upcase }
  end
rescue
  []
end

.decode_and_verify_params(signed_request, secret) ⇒ Object 



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# File 'lib/tr8n/utils.rb', line 96

def self.decode_and_verify_params(signed_request, secret)
  signed_request = URI::decode(signed_request)
  signed_request = Base64.decode64(signed_request)

  encoded_sig, payload = signed_request.split('.', 2)
  expected_sig = OpenSSL::HMAC.digest('sha256', secret, payload)
  expected_sig = Base64.encode64(expected_sig)
  if expected_sig != encoded_sig
    raise Tr8n::Exception.new("Bad signature")
  end

  JSON.parse(Base64.decode64(payload))
end

.guid ⇒ Object 



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# File 'lib/tr8n/utils.rb', line 53

def self.guid
  (0..16).to_a.map{|a| rand(16).to_s(16)}.join
end

.hash_value(hash, key) ⇒ Object 



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# File 'lib/tr8n/utils.rb', line 57

def self.hash_value(hash, key)
  hash[key.to_s] || hash[key.to_sym]
end

.load_json(file_path, env = nil) ⇒ Object 



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# File 'lib/tr8n/utils.rb', line 72

def self.load_json(file_path, env = nil)
  json = JSON.parse(File.read(file_path))
  return json if env.nil?
  return yml['defaults'] if env == 'defaults'
  yml['defaults'].rmerge(yml[env] || {})
end

.load_yaml(file_path, env = nil) ⇒ Object 



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# File 'lib/tr8n/utils.rb', line 79

def self.load_yaml(file_path, env = nil)
  yaml = YAML.load_file(file_path)
  return yaml if env.nil?
  return yaml['defaults'] if env == 'defaults'
  yaml['defaults'].rmerge(yaml[env] || {})
end

.normalize_tr_params(label, description, tokens, options) ⇒ Object 



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# File 'lib/tr8n/utils.rb', line 33

def self.normalize_tr_params(label, description, tokens, options)
  return label if label.is_a?(Hash)

  if description.is_a?(Hash)
    return {
      :label        => label,
      :description  => nil,
      :tokens       => description,
      :options      => tokens
    }
  end

  {
    :label        => label,
    :description  => description,
    :tokens       => tokens,
    :options      => options
  }
end

.sign_and_encode_params(params, secret) ⇒ Object 



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# File 'lib/tr8n/utils.rb', line 86

def self.sign_and_encode_params(params, secret)
  payload = params.merge(:algorithm => 'HMAC-SHA256', :ts => Time.now.to_i).to_json
  payload = Base64.encode64(payload)

  sig = OpenSSL::HMAC.digest('sha256', secret, payload)
  encoded_sig = Base64.encode64(sig)

  URI::encode(Base64.encode64("#{encoded_sig}.#{payload}"))
end

.split_by_sentence(text) ⇒ Object 



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# File 'lib/tr8n/utils.rb', line 61

def self.split_by_sentence(text)
  sentence_regex = /[^.!?\s][^.!?]*(?:[.!?](?![\'"]?\s|$)[^.!?]*)*[.!?]?[\'"]?(?=\s|$)/

  sentences = []
  text.scan(sentence_regex).each do |s|
    sentences << s
  end

  sentences
end