Class: Gtts::GTTS

Inherits:
Object
  • Object
show all
Defined in:
lib/gtts/tts.rb

Constant Summary collapse

GOOGLE_TTS_MAX_CHARS = 
100
GOOGLE_TTS_HEADERS = 
{
  "Referer" => "http://translate.google.com/",
  "User-Agent" => "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 Safari/537.36",
  "Content-Type" => "application/x-www-form-urlencoded;charset=utf-8"
}.freeze
GOOGLE_TTS_RPC = 
"jQ1olc"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(text, tld: "com", lang: "en", slow: false, lang_check: true) ⇒ GTTS

Returns a new instance of GTTS.

Raises:



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# File 'lib/gtts/tts.rb', line 63

def initialize(text, tld: "com", lang: "en", slow: false, lang_check: true)
  raise ArgumentError, "No text to speak" if text.nil? || text.empty?

  @text = text
  @tld = tld
  @lang_check = lang_check
  @lang = lang
  @speed = slow ? Speed::SLOW : Speed::NORMAL

  validate_language if @lang_check
end

Instance Attribute Details

#lang ⇒ Object (readonly)

Returns the value of attribute lang.



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# File 'lib/gtts/tts.rb', line 61

def lang
  @lang
end

#lang_check ⇒ Object (readonly)

Returns the value of attribute lang_check.



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# File 'lib/gtts/tts.rb', line 61

def lang_check
  @lang_check
end

#speed ⇒ Object (readonly)

Returns the value of attribute speed.



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# File 'lib/gtts/tts.rb', line 61

def speed
  @speed
end

#text ⇒ Object (readonly)

Returns the value of attribute text.



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# File 'lib/gtts/tts.rb', line 61

def text
  @text
end

#tld ⇒ Object (readonly)

Returns the value of attribute tld.



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# File 'lib/gtts/tts.rb', line 61

def tld
  @tld
end

Instance Method Details

#save(filename) ⇒ Object 



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# File 'lib/gtts/tts.rb', line 103

def save(filename)
  File.open(filename, "wb") do |file|
    stream { |chunk| file.write(chunk) }
  end
end

#stream ⇒ Object 



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# File 'lib/gtts/tts.rb', line 75

def stream
  prepared_requests.each_with_index do |request, idx|
    client = HTTP.headers(GOOGLE_TTS_HEADERS)

    begin
      response = client.post(request[:url], form: {"f.req" => request[:body]})

      unless response.status.success?
        raise GttsError.new(tts: self, response: response)
      end

      response.body.to_s.each_line do |line|
        decoded_line = line.force_encoding("UTF-8")
        if decoded_line.include?("jQ1olc")
          if (audio_match = decoded_line.match(/jQ1olc","\[\\"(.*?)\\"\]/))
            as_bytes = audio_match[1].encode("ASCII")
            yield Base64.decode64(as_bytes)
          else
            raise GttsError.new(tts: self, response: response)
          end
        end
      end
    rescue HTTP::Error => e
      raise GttsError.new(tts: self, response: response)
    end
  end
end