Press n or j to go to the next uncovered block, b, p or k for the previous block.
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* Copyright 2026 nodearchive
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import JSZip from 'jszip'
import { NodearchiveError } from '../../.errors/class.js'
import { toNodearchiveError } from '../../.helpers/toNodearchiveError/index.js'
import type { ArchiveEntry } from '../../.types/ArchiveEntry/type.js'
import type { ArchiveManifest } from '../../.types/ArchiveManifest/type.js'
import { toArchiveManifest } from '../toArchiveManifest/index.js'
export async function readZipArchive(
bytes: Uint8Array
): Promise<ArchiveManifest> {
try {
const zip = await JSZip.loadAsync(bytes)
const entries: ArchiveEntry[] = []
for (const file of Object.values(zip.files)) {
const entryPath = file.name.replace(/\/+$/u, '')
if (!entryPath) {
continue
}
const mode = toMode(file.unixPermissions)
if (mode !== undefined && (mode & 0o170000) === 0o120000) {
throw new NodearchiveError(
'ARCHIVE_UNSUPPORTED_ENTRY',
`Unsupported archive entry: ${file.name}`
)
}
if (file.dir) {
entries.push({ kind: 'directory', mode, path: entryPath })
continue
}
entries.push({
data: Buffer.from(await file.async('uint8array')).toString('base64'),
kind: 'file',
mode,
path: entryPath,
})
}
return toArchiveManifest(entries)
} catch (error) {
throw toNodearchiveError(
error,
'ARCHIVE_INVALID_FORMAT',
'Invalid zip archive'
)
}
}
function toMode(value: number | string | null): number | undefined {
if (typeof value === 'number') {
return value
}
if (typeof value === 'string') {
return Number.parseInt(value, 8)
}
return undefined
}
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