* HEAD Object - Same as Get Object but only respond with headers *(no actual body) * @param {AuthInfo} authInfo - Instance of AuthInfo class with requester's info * @param {object} request - normalized request object * @param {object} log - Werelogs logger * @param {function} callback - callbac
(authInfo, request, log, callback)
| 28 | * |
| 29 | */ |
| 30 | function objectHead(authInfo, request, log, callback) { |
| 31 | log.debug('processing request', { method: 'objectHead' }); |
| 32 | const bucketName = request.bucketName; |
| 33 | const objectKey = request.objectKey; |
| 34 | |
| 35 | const decodedVidResult = decodeVersionId(request.query); |
| 36 | if (decodedVidResult instanceof Error) { |
| 37 | log.trace('invalid versionId query', { |
| 38 | versionId: request.query.versionId, |
| 39 | error: decodedVidResult, |
| 40 | }); |
| 41 | return callback(decodedVidResult); |
| 42 | } |
| 43 | const versionId = decodedVidResult; |
| 44 | |
| 45 | const mdValParams = { |
| 46 | authInfo, |
| 47 | bucketName, |
| 48 | objectKey, |
| 49 | versionId, |
| 50 | getDeleteMarker: true, |
| 51 | requestType: request.apiMethods || 'objectHead', |
| 52 | request, |
| 53 | }; |
| 54 | |
| 55 | return standardMetadataValidateBucketAndObj(mdValParams, request.actionImplicitDenies, log, |
| 56 | (err, bucket, objMD) => updateEncryption(err, bucket, objMD, objectKey, log, {}, |
| 57 | (err, bucket, objMD) => { |
| 58 | const corsHeaders = collectCorsHeaders(request.headers.origin, |
| 59 | request.method, bucket); |
| 60 | if (err) { |
| 61 | log.debug('error validating request', { |
| 62 | error: err, |
| 63 | method: 'objectHead', |
| 64 | }); |
| 65 | monitoring.promMetrics( |
| 66 | 'HEAD', bucketName, err.code, 'headObject'); |
| 67 | return callback(err, corsHeaders); |
| 68 | } |
| 69 | if (!objMD) { |
| 70 | const err = versionId ? errors.NoSuchVersion : errors.NoSuchKey; |
| 71 | monitoring.promMetrics( |
| 72 | 'HEAD', bucketName, err.code, 'headObject'); |
| 73 | return callback(err, corsHeaders); |
| 74 | } |
| 75 | const verCfg = bucket.getVersioningConfiguration(); |
| 76 | if (objMD.isDeleteMarker) { |
| 77 | const responseHeaders = Object.assign({}, |
| 78 | { 'x-amz-delete-marker': true }, corsHeaders); |
| 79 | if (!versionId) { |
| 80 | monitoring.promMetrics( |
| 81 | 'HEAD', bucketName, 404, 'headObject'); |
| 82 | return callback(errors.NoSuchKey, responseHeaders); |
| 83 | } |
| 84 | // return MethodNotAllowed if requesting a specific |
| 85 | // version that has a delete marker |
| 86 | responseHeaders['x-amz-version-id'] = |
| 87 | getVersionIdResHeader(verCfg, objMD); |
no test coverage detected