v2.8.47

What's Changed in v2.8.47

New features

• New signCentralDirectory option in ZipWriter#close() to sign zip files. The function receives the raw data of the central directory records and returns the data of a digital signature record, e.g. a PKCS#7 signature, written between the central directory and the end of central directory record. The signature is exposed by the new digitalSignature property of ZipReader, along with the new directoryOffset and directoryLength properties to locate the signed data and verify it. zip.js stores the data as-is and does not implement the signature computation itself
• New decryptCentralDirectory option in ZipReader to read zip files with an encrypted central directory, as defined in the Strong Encryption Specification of the ZIP format specification. The function receives the raw data stored in place of the central directory and the encryption metadata exposed in a DirectoryEncryptionInfo object, and returns the decrypted central directory records. Without this option, reading such zip files throws an ERR_ENCRYPTED_CENTRAL_DIRECTORY error. zip.js provides the encrypted data and the related metadata but does not implement the decryption itself
• All the user-facing error message constants are now exported, e.g. ERR_INVALID_UID, ERR_INVALID_MSDOS_ATTRIBUTES, ERR_ENTRY_EXISTS, ERR_UNSUPPORTED_CRYPTO_API and ERR_WORKER_STARTUP_TIMEOUT. This allows comparing error.message with the constants instead of hardcoding the messages

Other changes

• Improved browser testing, thanks to @danny0838 (#672): module import errors are now reported in the test results, and the new withStreamsPolyfill URL parameter runs the test suite with web-streams-polyfill on browsers missing TransformStream

Full Changelog: v2.8.46...v2.8.47