Class: OdpsDatahub::HttpConnection

Inherits:
Object
  • Object
show all
Defined in:
lib/fluent/plugin/http/http_connection.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(odpsConfig, headers, params, path, method, stream = nil, isodpsurl = false) ⇒ HttpConnection

Returns a new instance of HttpConnection.



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# File 'lib/fluent/plugin/http/http_connection.rb', line 30

def initialize(odpsConfig, headers, params, path, method, stream = nil, isodpsurl = false)
  @mOdpsConfig = odpsConfig
  @mHeader = headers
  @mParam = params
  @mPath = path
  @mMethod = method
  @mStream = stream
  @mIsOdpsUrl = isodpsurl
  buildRequest
end

Instance Attribute Details

#mHeader ⇒ Object (readonly)

Returns the value of attribute mHeader.



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# File 'lib/fluent/plugin/http/http_connection.rb', line 29

def mHeader
  @mHeader
end

#mMethod ⇒ Object (readonly)

Returns the value of attribute mMethod.



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# File 'lib/fluent/plugin/http/http_connection.rb', line 29

def mMethod
  @mMethod
end

#mOdpsConfig ⇒ Object (readonly)

Returns the value of attribute mOdpsConfig.



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# File 'lib/fluent/plugin/http/http_connection.rb', line 29

def mOdpsConfig
  @mOdpsConfig
end

#mParam ⇒ Object (readonly)

Returns the value of attribute mParam.



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# File 'lib/fluent/plugin/http/http_connection.rb', line 29

def mParam
  @mParam
end

#mPath ⇒ Object (readonly)

Returns the value of attribute mPath.



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# File 'lib/fluent/plugin/http/http_connection.rb', line 29

def mPath
  @mPath
end

#mReq ⇒ Object (readonly)

Returns the value of attribute mReq.



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# File 'lib/fluent/plugin/http/http_connection.rb', line 29

def mReq
  @mReq
end

#mStream ⇒ Object (readonly)

Returns the value of attribute mStream.



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# File 'lib/fluent/plugin/http/http_connection.rb', line 29

def mStream
  @mStream
end

#mUri ⇒ Object (readonly)

Returns the value of attribute mUri.



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# File 'lib/fluent/plugin/http/http_connection.rb', line 29

def mUri
  @mUri
end

Instance Method Details

#buildRequest ⇒ Object 



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# File 'lib/fluent/plugin/http/http_connection.rb', line 41

def buildRequest
  path = ""
  separater = '?'
  @mParam.each { |key , value|
    if value != ""
      path += separater + key.to_s + '=' + value.to_s
    else
      path += separater + key.to_s
    end
    separater = '&'
  }
  if @mIsOdpsUrl
    @mUri = URI.parse(@mOdpsConfig.odpsEndpoint + @mPath + path)
  else
    @mUri = URI.parse(@mOdpsConfig.datahubEndpoint + @mPath + path)
  end

  if !@mHeader.has_key?($CONTENT_MD5)
    @mHeader[$CONTENT_MD5] = ""
  end
  if !@mHeader.has_key?($CONTENT_TYPE)
    @mHeader[$CONTENT_TYPE] = ""
  end
  @mHeader[$DATE] = Time.now.utc.strftime("%a, %d %b %Y %H:%M:%S GMT")
  if not @mIsOdpsUrl
    @mHeader[$TUNNEL_STREAM_VERSION] = "1"
    @mHeader[$TUNNEL_VERSION] = "3"
  end
  @mHeader[$USER_AGENT] = $SDK_UA_STR + @mOdpsConfig.userAgent
  @mHeader[$AUTHORIZATION] = signAuthorization
  case @mMethod
    when "POST"
      @mReq = ::Net::HTTP::Post.new(mUri.to_s, @mHeader)
      @mReq.body = @mStream
    when "GET"
      @mReq = ::Net::HTTP::Get.new(mUri.to_s, @mHeader)
    when "PUT"
      @mReq = ::Net::HTTP::Put.new(mUri.to_s, @mHeader)
      @mReq.body = @mStream
    else
      raise OdpsDatahubException.new($INVALID_ARGUMENT, "invalid method")
  end
end

#getResponse ⇒ Object 



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# File 'lib/fluent/plugin/http/http_connection.rb', line 85

def getResponse()
  res = Net::HTTP.start(@mUri.host, @mUri.port) {|http|
    http.request(@mReq)
  }
  return res
end

#signAuthorization ⇒ Object 



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# File 'lib/fluent/plugin/http/http_connection.rb', line 92

def signAuthorization
  prefix = "x-odps-"
  stringToSign = @mMethod + "\n"
  accessKey = @mOdpsConfig.accessKey
  headerMapDown = Hash.new

  @mHeader.each { |key , value|
    keyDown = key.downcase
    headerMapDown[keyDown] = value
  }
  headerArray = headerMapDown.sort

  headerArray.each { |key , value|
    if key.start_with?(prefix)
      stringToSign << key << ":" << value
      stringToSign << "\n"
    elsif key == 'content-type' or key == 'content-md5' or key == 'date'
      stringToSign << value
      stringToSign << "\n"
    end
  }

  signParam = ""
  separater = '?'
  paramArray = @mParam.sort
  paramArray.each { |key , value|
    if value != ""
      signParam += separater + key.to_s + '=' + value.to_s
    else
      signParam += separater + key.to_s
    end
    separater = '&'
  }
  stringToSign += @mPath + signParam
  #puts stringToSign

  signedStr =  "ODPS " + @mOdpsConfig.accessId + ":" + Base64.encode64("#{OpenSSL::HMAC.digest('sha1', accessKey, stringToSign)}").to_s
end