node-casclib

Node bindings for CascLib

Installation

node-casclib has been tested on Windows and Linux. To install using npm

npm install casclib

or with yarn

yarn add casclib

Usage

Reading a file synchronously.

import * as casclib from 'casclib'

const storageHandle = casclib.openStorageSync("path/to/game/directory")

const fileData = casclib.readFile("path/to/casc/file")

casclib.closeStorage(storageHandle)

Read a file asynchronously with promises.

import * as casclib from 'casclib'

casclib.openStorage("path/to/game/directory")
  .then(storageHandle => {
    return casclib.readfile("path/to/casc/file")
      .then(fileData => {
        // do things with file data

        casclibe.closeStorage(storageHandle)
      })
  })

Read a file asynchronously with callbacks.

import * as casclib from 'casclib'

casclib.openStorage("path/to/game/directory", (error, storageHandle) => {
  if(error) {
    // handle error
  }

  casclib.readFile("path/to/casc/file", (error, fileData) => {
    if(error) {
      // handle error
    }

    // do things with file data

    casclib.closeStorage(storageHandle)
  })
})

API

CASC Storage and storage info

Game Names

Possible game name values.

• Heroes of the Storm
• World of Warcraft
• Diablo 3
• Overwatch
• Starcraft
• Starcraft II
• Unknown

Locales

Supported locale values

• ALL
• NONE
• UNKNOWN1
• ENUS
• KOKR
• RESERVED
• FRFR
• DEDE
• ZHCN
• ESES
• ZHTW
• ENGB
• ENCN
• ENTW
• ESMX
• RURU
• PTBR
• ITIT
• PTPT

StorageInfo

Object returned by getStorageInfo

• fileCount number of files
• gameName name of game
• gameBuild game build number
• installedLocales array of installed locale names

OpenStorageCallback

Callback signature used by openStorage

(error: Error, storageHandle: any) => void

openStorageSync

Synchronously open CASC storage at path

openStorageSync(path: string, locales: string[] = [ 'ALL' ]): any

• path Path to location of CASC storage
• locales (defaults to [ 'ALL' ]) Array of strings of valid locales to open
• returns a handle for the specified CASC storage

openStorage

Asynchronously open CASC storage for path and locales

openStorage(path: string): Promise<any>
openStorage(path: string, locales: string[]): Promise<any>
openStorage(path: string, callback: OpenStorageCallback): null
openStorage(path: string, locales: string[], callback: OpenStorageCallback): null

• path Path to location of CASC storage
• locales (defaults to [ 'ALL' ]) Array of strings of valid locales to open
• callback (optional) Called after CASC storage has been opened
• returns Promise if callback is not provided otherwise returns null

getStorageInfo

Get information about the opened CASC storage

getStorageInfo(storageHandle: any): StorageInfo

• storageHandle handle returned by either openStorageSync or openStorage
• returns a StorageInfo object

closeStorage

Close CASC storage

closeStorage(storageHandle: any): void

• storageHandle handle returned by either openStorageSync or openStorage

Find files

FindResult

Object returned by findFiles and findFilesSync

• fullName full path of file
• baseName file name
• fileSize size of file

findFilesSync

Synchronously search CASC storage for files that match the search pattern.

findFilesSync(storageHandle: any, searchPattern: string = "\*", listFilePath: string = ''): FindResult[]

• storageHandle handle returned by either openStorageSync or openStorage
• searchPattern (defaults to "*") Can use * to match any number of characters in the file path or ? to match a single character.
• listFilePath (defaults to an empty string) path to file containing list of files in the CASC storage (only required for WOW)
• returns list of FindResults

findFiles

Asynchronously search CASC storage for files that match the search pattern.

findFiles(storageHandle: any, searchPattern: string): Promise<FindResult[]>
findFiles(storageHandle: any, searchPattern: string, listFilePath: string): Promise<FindResult[]>
findFiles(storageHandle: any, searchpattern: string, callback: FindFilesCallback): null

• storageHandle handle returned by either openStorageSync or openStorage
• searchPattern (defaults to "*") Can use * to match any number of characters in the file path or ? to match a single character.
• listFilePath (defaults to an empty string) path to file containing list of files in the CASC storage (only required for WOW)
• returns Promise if callback is not provided otherwise returns null

Open and Read files in CASC storage

OpenFileCallback

Callback signature used by openFile.

(error: Error, fileHandle: any) => void

ReadFileCallback

Callback signature used by read and readFile.

(error: Error, fileData: Buffer) => void

openFileSync

Synchronously open CASC file.

openFileSync(storageHandle: any, filePath: string)

• storageHandle handle returned by either openStorageSync or openStorage
• filePath CASC file path for file to open
• returns handle for opened file

openFile

Asynchronously open CASC file.

openFile(storageHandle: any, filePath: string): Promise<any>
openFile(storageHandle: any, filePath: string, callback: OpenFileCallback): null

• storageHandle handle returned by either openStorageSync or openStorage
• filePath CASC file path for file to open
• callback (optional) called after file has been opened
• returns Promise if callback is not provided otherwise returns null

readSync

Synchronously read a file in CASC storage.

readSync(fileHandle: any): Buffer

• fileHandle handle for file to be read
• returns Buffer with file contents

read

Asynchronously read a file in CASC storage.

read(fileHandle: any): Promise<Buffer>
read(fileHandle: any, callback: ReadFileCallback): null

• fileHandle handle for file to be read
• returns Promise if callback is not provided otherwise returns null

readFileSync

Synchronously read a file in CASC storage.

readFileSync(storageHandle: any, filePath: string): Buffer

• storageHandle handle returned by either openStorageSync or openStorage
• filePath CASC file path for file to open
• returns Buffer with file contents

readFile

Asynchronously read a file in CASC storage.

readFile(storageHandle: any, filePath: string): Promise<Buffer>
readFile(storageHandle: any, filePath: string, callback: ReadFileCallback): null

• storageHandle handle returned by either openStorageSync or openStorage
• filePath CASC file path for file to read
• callback (optional) called after file has been opened and read
• returns Promise if callback is not provided otherwise returns null

closeFile

Close CASC file

closeFile(fileHandle: any): void

• storageHandle handle returned by either openStorageSync or openStorage

FileReadable

Readable Stream object used to read files in CASC storage.

• path path to the file in CASC storage
• storageHandle handle for CASC storage
• fileHandle handle for CASC file. If provided path and storageHandle are not required.

createReadStream

Creates a FileReadable.

createReadStream(fileHandle: any, options?: ReadableOptions): Readable
createReadStream(storageHandle: any, filePath: string, options?: ReadableOptions): Readable

• fileHandle handle for file to be read
• storageHandle handle returned by either openStorageSync or openStorage
• filePath - filePath CASC file path for file to read
• options (optional) stream options see nodejs stream docs for supported options.
• returns a FileReadable