Class Discovery

The Discovery class handles discovery and interaction with Sony Alpha Camera's services. It employs UPnP (Universal Plug and Play) for service discovery and interaction.

Hierarchy

  • Discovery

Constructors

constructor

Properties

XPushListDetails assumedServiceDirectoryUrl connectionManagerDetails contentDirectoryDetails digitalImagingDetails discoveredServiceDirectoryUrl discoveryAddr discoveryMessage discoveryPort parser serverDetails serverIP serverPort serviceDirectoryObject services socket

Methods

SSDP construct_url discover_avaliable_services get_service_directory_object get_service_list parse_services requestXML scrape_service_discovery_url send_disc_msg

Constructors

constructor

Properties

XPushListDetails

XPushListDetails: undefined | Service

Private Readonly assumedServiceDirectoryUrl

assumedServiceDirectoryUrl: string = 'http://192.168.122.1:64321/dd.xml'

connectionManagerDetails

connectionManagerDetails: undefined | Service

contentDirectoryDetails

contentDirectoryDetails: undefined | Service

digitalImagingDetails

digitalImagingDetails: undefined | Service

Private discoveredServiceDirectoryUrl

discoveredServiceDirectoryUrl: string = ''

Private Readonly discoveryAddr

discoveryAddr: string = '239.255.255.250'

Private Readonly discoveryMessage

discoveryMessage: Buffer = ...

Private Readonly discoveryPort

discoveryPort: number = 1900

Private Readonly parser

parser: XMLParser

Private serverDetails

serverDetails: string = ''

serverIP

serverIP: string = '192.168.122.1'

serverPort

serverPort: string = '64321'

Private serviceDirectoryObject

serviceDirectoryObject: undefined | ServiceDirectoryObject = undefined

Private services

services: Service[] = []

Private Readonly socket

socket: Socket = ...

Methods

SSDP

  • Initiates the SSDP (Simple Service Discovery Protocol) process for service discovery.

    Parameters

    • waitFor: number

      The maximum wait time in milliseconds.

    • sendEvery: number

      The interval in milliseconds to send the discovery message.

    Returns Promise<void>

    Returns a promise that resolves when the SSDP process is finished.

    Throws

    Will throw an error if the SSDP process fails or if the camera is not found.

construct_url

discover_avaliable_services

  • Initiates the service discovery process.

    Returns Promise<void>

    Returns a promise that resolves when the discovery process is finished.

    Throws

    Will throw an error if the discovery process fails.

Private get_service_directory_object

  • Private

    Fetches the service directory object.

    Returns Promise<void>

    Returns a promise that resolves when the service directory object is fetched.

    Throws

    Will throw an error if fetching the service directory object fails.

Private get_service_list

  • Private

    Fetches the service list.

    Returns Promise<void>

    Returns a promise that resolves when the service list is fetched.

    Throws

    Will throw an error if the serviceDirectoryObject is undefined.

Private parse_services

requestXML

  • Sends a HTTP GET request to the provided URL and parses the response as XML.

    Parameters

    • url: string

      The URL to request from.

    Returns Promise<any>

    Returns a promise that resolves with the parsed XML object.

    Throws

    Will throw an error if the XML request fails.

Private scrape_service_discovery_url

  • Private

    Extracts the server IP and port from the provided URL.

    Parameters

    • url: string

      The URL to extract details from.

    Returns void

Private send_disc_msg

  • Private

    Sends a discovery message over the UDP socket.

    Returns Promise<void>

    Returns a promise that resolves when the discovery message is successfully sent.

    Throws

    Will throw an error if sending the discovery message fails.

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