feat: add S3 SigV4 auth verification and XML builders
This commit is contained in:
asepharyana
@@ -0,0 +1,234 @@
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const escapeXml = (str: string): string =>
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str
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.replace(/&/g, '&')
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.replace(/</g, '<')
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.replace(/>/g, '>')
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.replace(/"/g, '"')
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.replace(/'/g, ''');
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const isoDate = (d: Date): string => d.toISOString().replace(/\.\d{3}Z$/, 'Z');
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// ─────── Bucket operations ───────
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export const listBucketsXml = (
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buckets: { name: string; createdAt: Date }[],
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requestId: string,
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): string => `<?xml version="1.0" encoding="UTF-8"?>
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<ListAllMyBucketsResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
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<Buckets>
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${buckets.map((b) => `<Bucket>
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<Name>${escapeXml(b.name)}</Name>
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<CreationDate>${isoDate(b.createdAt)}</CreationDate>
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</Bucket>`).join('')}
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</Buckets>
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</ListAllMyBucketsResult>`;
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// ─────── Object listing ───────
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export const listBucketResultXml = (
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bucketName: string,
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objects: { key: string; sizeBytes: number; etag: string; lastModified: Date; mimeType: string }[],
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prefixes: string[],
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isTruncated: boolean,
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marker: string | null,
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maxKeys: number,
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prefix: string,
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delimiter: string | null,
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nextMarker: string | null,
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requestId: string,
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): string => `<?xml version="1.0" encoding="UTF-8"?>
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<ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
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<Name>${escapeXml(bucketName)}</Name>
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<Prefix>${escapeXml(prefix)}</Prefix>
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<Marker>${escapeXml(marker || '')}</Marker>
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<MaxKeys>${maxKeys}</MaxKeys>
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<Delimiter>${escapeXml(delimiter || '')}</Delimiter>
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<IsTruncated>${isTruncated}</IsTruncated>
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${objects.map((o) => `<Contents>
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<Key>${escapeXml(o.key)}</Key>
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<LastModified>${isoDate(o.lastModified)}</LastModified>
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<ETag>"${o.etag}"</ETag>
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<Size>${o.sizeBytes}</Size>
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<StorageClass>STANDARD</StorageClass>
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</Contents>`).join('')}
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${prefixes.map((p) => `<CommonPrefixes>
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<Prefix>${escapeXml(p)}</Prefix>
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</CommonPrefixes>`).join('')}
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${nextMarker ? `<NextMarker>${escapeXml(nextMarker)}</NextMarker>` : ''}
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</ListBucketResult>`;
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export const listBucketV2ResultXml = (
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bucketName: string,
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objects: { key: string; sizeBytes: number; etag: string; lastModified: Date; mimeType: string }[],
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prefixes: string[],
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isTruncated: boolean,
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maxKeys: number,
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prefix: string,
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delimiter: string | null,
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continuationToken: string | null,
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nextContinuationToken: string | null,
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keyCount: number,
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requestId: string,
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): string => `<?xml version="1.0" encoding="UTF-8"?>
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<ListBucketResultV2 xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
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<Name>${escapeXml(bucketName)}</Name>
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<Prefix>${escapeXml(prefix)}</Prefix>
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<MaxKeys>${maxKeys}</MaxKeys>
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<KeyCount>${keyCount}</KeyCount>
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${delimiter ? `<Delimiter>${escapeXml(delimiter)}</Delimiter>` : ''}
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${continuationToken ? `<ContinuationToken>${escapeXml(continuationToken)}</ContinuationToken>` : ''}
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<IsTruncated>${isTruncated}</IsTruncated>
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${objects.map((o) => `<Contents>
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<Key>${escapeXml(o.key)}</Key>
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<LastModified>${isoDate(o.lastModified)}</LastModified>
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<ETag>"${o.etag}"</ETag>
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<Size>${o.sizeBytes}</Size>
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<StorageClass>STANDARD</StorageClass>
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</Contents>`).join('')}
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${prefixes.map((p) => `<CommonPrefixes>
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<Prefix>${escapeXml(p)}</Prefix>
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</CommonPrefixes>`).join('')}
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${nextContinuationToken ? `<NextContinuationToken>${escapeXml(nextContinuationToken)}</NextContinuationToken>` : ''}
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</ListBucketResultV2>`;
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// ─────── Multipart ───────
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export const initiateMultipartUploadXml = (
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bucketName: string,
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key: string,
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uploadId: string,
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): string => `<?xml version="1.0" encoding="UTF-8"?>
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<InitiateMultipartUploadResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
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<Bucket>${escapeXml(bucketName)}</Bucket>
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<Key>${escapeXml(key)}</Key>
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<UploadId>${uploadId}</UploadId>
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</InitiateMultipartUploadResult>`;
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export const listPartsXml = (
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bucketName: string,
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key: string,
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uploadId: string,
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parts: { partNumber: number; etag: string; sizeBytes: number; createdAt: Date }[],
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maxParts: number,
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isTruncated: boolean,
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requestId: string,
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): string => `<?xml version="1.0" encoding="UTF-8"?>
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<ListPartsResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
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<Bucket>${escapeXml(bucketName)}</Bucket>
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<Key>${escapeXml(key)}</Key>
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<UploadId>${uploadId}</UploadId>
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<MaxParts>${maxParts}</MaxParts>
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<IsTruncated>${isTruncated}</IsTruncated>
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${parts.map((p) => `<Part>
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<PartNumber>${p.partNumber}</PartNumber>
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<LastModified>${isoDate(p.createdAt)}</LastModified>
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<ETag>"${p.etag}"</ETag>
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<Size>${p.sizeBytes}</Size>
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</Part>`).join('')}
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</ListPartsResult>`;
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export const completeMultipartUploadXml = (
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bucketName: string,
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key: string,
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etag: string,
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location: string,
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): string => `<?xml version="1.0" encoding="UTF-8"?>
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<CompleteMultipartUploadResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
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<Location>${escapeXml(location)}</Location>
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<Bucket>${escapeXml(bucketName)}</Bucket>
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<Key>${escapeXml(key)}</Key>
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<ETag>"${etag}"</ETag>
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</CompleteMultipartUploadResult>`;
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// ─────── Delete result ───────
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export const deleteResultXml = (
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deleted: string[],
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errors: { key: string; code: string; message: string }[],
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): string => `<?xml version="1.0" encoding="UTF-8"?>
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<DeleteResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
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${deleted.map((key) => `<Deleted>
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<Key>${escapeXml(key)}</Key>
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</Deleted>`).join('')}
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${errors.map((e) => `<Error>
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<Key>${escapeXml(e.key)}</Key>
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<Code>${e.code}</Code>
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<Message>${escapeXml(e.message)}</Message>
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</Error>`).join('')}
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</DeleteResult>`;
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// ─────── Copy ───────
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export const copyObjectResultXml = (
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etag: string,
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lastModified: Date,
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): string => `<?xml version="1.0" encoding="UTF-8"?>
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<CopyObjectResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
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<ETag>"${etag}"</ETag>
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<LastModified>${isoDate(lastModified)}</LastModified>
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</CopyObjectResult>`;
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// ─────── Error ───────
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export const s3ErrorXml = (
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code: string,
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message: string,
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resource: string,
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requestId: string,
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): string => `<?xml version="1.0" encoding="UTF-8"?>
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<Error>
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<Code>${code}</Code>
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<Message>${escapeXml(message)}</Message>
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<Resource>${escapeXml(resource)}</Resource>
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<RequestId>${requestId}</RequestId>
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</Error>`;
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export const s3ErrorResponse = (
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code: string,
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message: string,
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resource: string,
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status: number,
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): Response =>
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new Response(s3ErrorXml(code, message, resource, ''), {
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status,
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headers: { 'content-type': 'application/xml' },
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});
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// ─────── DeleteObjects XML parser ───────
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export const parseDeleteObjectsBody = (body: string): { keys: string[]; quiet: boolean } => {
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const keys: string[] = [];
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const keyRegex = /<Key>([^<]+)<\/Key>/g;
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let match;
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while ((match = keyRegex.exec(body)) !== null) {
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keys.push(match[1]);
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}
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const quiet = body.includes('<Quiet>true</Quiet>') || body.includes('<Quiet>true ');
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return { keys, quiet };
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};
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// ─────── CompleteMultipartUpload XML parser ───────
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export interface CompletePart {
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partNumber: number;
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etag: string;
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}
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export const parseCompleteMultipartBody = (body: string): CompletePart[] => {
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const parts: CompletePart[] = [];
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const partRegex = /<Part>[\s\S]*?<\/Part>/g;
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const partMatch = body.match(partRegex) || [];
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for (const partXml of partMatch) {
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const numMatch = partXml.match(/<PartNumber>(\d+)<\/PartNumber>/);
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const etagMatch = partXml.match(/<ETag>"?([^"<\s]+)"?<\/ETag>/);
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if (numMatch && etagMatch) {
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parts.push({
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partNumber: parseInt(numMatch[1], 10),
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etag: etagMatch[1].replace(/^"/, '').replace(/"$/, ''),
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});
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}
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}
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return parts;
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};
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