extensions.mjs 15 KB

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  1. /*
  2. * MinIO Javascript Library for Amazon S3 Compatible Cloud Storage, (C) 2020 MinIO, Inc.
  3. *
  4. * Licensed under the Apache License, Version 2.0 (the "License");
  5. * you may not use this file except in compliance with the License.
  6. * You may obtain a copy of the License at
  7. *
  8. * http://www.apache.org/licenses/LICENSE-2.0
  9. *
  10. * Unless required by applicable law or agreed to in writing, software
  11. * distributed under the License is distributed on an "AS IS" BASIS,
  12. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. * See the License for the specific language governing permissions and
  14. * limitations under the License.
  15. */
  16. import * as stream from "stream";
  17. import * as errors from "../errors.mjs";
  18. import { isBoolean, isString, isValidBucketName, isValidPrefix, uriEscape } from "./helper.mjs";
  19. import { readAsString } from "./response.mjs";
  20. import { parseListObjectsV2WithMetadata } from "./xml-parser.mjs";
  21. export class Extensions {
  22. constructor(client) {
  23. this.client = client;
  24. }
  25. /**
  26. * List the objects in the bucket using S3 ListObjects V2 With Metadata
  27. *
  28. * @param bucketName - name of the bucket
  29. * @param prefix - the prefix of the objects that should be listed (optional, default `''`)
  30. * @param recursive - `true` indicates recursive style listing and `false` indicates directory style listing delimited by '/'. (optional, default `false`)
  31. * @param startAfter - Specifies the key to start after when listing objects in a bucket. (optional, default `''`)
  32. * @returns stream emitting the objects in the bucket, the object is of the format:
  33. */
  34. listObjectsV2WithMetadata(bucketName, prefix, recursive, startAfter) {
  35. if (prefix === undefined) {
  36. prefix = '';
  37. }
  38. if (recursive === undefined) {
  39. recursive = false;
  40. }
  41. if (startAfter === undefined) {
  42. startAfter = '';
  43. }
  44. if (!isValidBucketName(bucketName)) {
  45. throw new errors.InvalidBucketNameError('Invalid bucket name: ' + bucketName);
  46. }
  47. if (!isValidPrefix(prefix)) {
  48. throw new errors.InvalidPrefixError(`Invalid prefix : ${prefix}`);
  49. }
  50. if (!isString(prefix)) {
  51. throw new TypeError('prefix should be of type "string"');
  52. }
  53. if (!isBoolean(recursive)) {
  54. throw new TypeError('recursive should be of type "boolean"');
  55. }
  56. if (!isString(startAfter)) {
  57. throw new TypeError('startAfter should be of type "string"');
  58. }
  59. // if recursive is false set delimiter to '/'
  60. const delimiter = recursive ? '' : '/';
  61. return stream.Readable.from(this.listObjectsV2WithMetadataGen(bucketName, prefix, delimiter, startAfter), {
  62. objectMode: true
  63. });
  64. }
  65. async *listObjectsV2WithMetadataGen(bucketName, prefix, delimiter, startAfter) {
  66. let ended = false;
  67. let continuationToken = '';
  68. do {
  69. const result = await this.listObjectsV2WithMetadataQuery(bucketName, prefix, continuationToken, delimiter, startAfter);
  70. ended = !result.isTruncated;
  71. continuationToken = result.nextContinuationToken;
  72. for (const obj of result.objects) {
  73. yield obj;
  74. }
  75. } while (!ended);
  76. }
  77. async listObjectsV2WithMetadataQuery(bucketName, prefix, continuationToken, delimiter, startAfter) {
  78. const queries = [];
  79. // Call for listing objects v2 API
  80. queries.push(`list-type=2`);
  81. queries.push(`encoding-type=url`);
  82. // escape every value in query string, except maxKeys
  83. queries.push(`prefix=${uriEscape(prefix)}`);
  84. queries.push(`delimiter=${uriEscape(delimiter)}`);
  85. queries.push(`metadata=true`);
  86. if (continuationToken) {
  87. continuationToken = uriEscape(continuationToken);
  88. queries.push(`continuation-token=${continuationToken}`);
  89. }
  90. // Set start-after
  91. if (startAfter) {
  92. startAfter = uriEscape(startAfter);
  93. queries.push(`start-after=${startAfter}`);
  94. }
  95. queries.push(`max-keys=1000`);
  96. queries.sort();
  97. let query = '';
  98. if (queries.length > 0) {
  99. query = `${queries.join('&')}`;
  100. }
  101. const method = 'GET';
  102. const res = await this.client.makeRequestAsync({
  103. method,
  104. bucketName,
  105. query
  106. });
  107. return parseListObjectsV2WithMetadata(await readAsString(res));
  108. }
  109. }
  110. //# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["stream","errors","isBoolean","isString","isValidBucketName","isValidPrefix","uriEscape","readAsString","parseListObjectsV2WithMetadata","Extensions","constructor","client","listObjectsV2WithMetadata","bucketName","prefix","recursive","startAfter","undefined","InvalidBucketNameError","InvalidPrefixError","TypeError","delimiter","Readable","from","listObjectsV2WithMetadataGen","objectMode","ended","continuationToken","result","listObjectsV2WithMetadataQuery","isTruncated","nextContinuationToken","obj","objects","queries","push","sort","query","length","join","method","res","makeRequestAsync"],"sources":["extensions.ts"],"sourcesContent":["/*\n * MinIO Javascript Library for Amazon S3 Compatible Cloud Storage, (C) 2020 MinIO, Inc.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport * as stream from 'node:stream'\n\nimport * as errors from '../errors.ts'\nimport type { TypedClient } from './client.ts'\nimport { isBoolean, isString, isValidBucketName, isValidPrefix, uriEscape } from './helper.ts'\nimport { readAsString } from './response.ts'\nimport type { BucketItemWithMetadata, BucketStream } from './type.ts'\nimport { parseListObjectsV2WithMetadata } from './xml-parser.ts'\n\nexport class Extensions {\n  private readonly client: TypedClient\n\n  constructor(client: TypedClient) {\n    this.client = client\n  }\n\n  /**\n   * List the objects in the bucket using S3 ListObjects V2 With Metadata\n   *\n   * @param bucketName - name of the bucket\n   * @param prefix - the prefix of the objects that should be listed (optional, default `''`)\n   * @param recursive - `true` indicates recursive style listing and `false` indicates directory style listing delimited by '/'. (optional, default `false`)\n   * @param startAfter - Specifies the key to start after when listing objects in a bucket. (optional, default `''`)\n   * @returns stream emitting the objects in the bucket, the object is of the format:\n   */\n  public listObjectsV2WithMetadata(\n    bucketName: string,\n    prefix?: string,\n    recursive?: boolean,\n    startAfter?: string,\n  ): BucketStream<BucketItemWithMetadata> {\n    if (prefix === undefined) {\n      prefix = ''\n    }\n    if (recursive === undefined) {\n      recursive = false\n    }\n    if (startAfter === undefined) {\n      startAfter = ''\n    }\n    if (!isValidBucketName(bucketName)) {\n      throw new errors.InvalidBucketNameError('Invalid bucket name: ' + bucketName)\n    }\n    if (!isValidPrefix(prefix)) {\n      throw new errors.InvalidPrefixError(`Invalid prefix : ${prefix}`)\n    }\n    if (!isString(prefix)) {\n      throw new TypeError('prefix should be of type \"string\"')\n    }\n    if (!isBoolean(recursive)) {\n      throw new TypeError('recursive should be of type \"boolean\"')\n    }\n    if (!isString(startAfter)) {\n      throw new TypeError('startAfter should be of type \"string\"')\n    }\n\n    // if recursive is false set delimiter to '/'\n    const delimiter = recursive ? '' : '/'\n    return stream.Readable.from(this.listObjectsV2WithMetadataGen(bucketName, prefix, delimiter, startAfter), {\n      objectMode: true,\n    })\n  }\n\n  private async *listObjectsV2WithMetadataGen(\n    bucketName: string,\n    prefix: string,\n    delimiter: string,\n    startAfter: string,\n  ): AsyncIterable<BucketItemWithMetadata> {\n    let ended = false\n    let continuationToken = ''\n    do {\n      const result = await this.listObjectsV2WithMetadataQuery(\n        bucketName,\n        prefix,\n        continuationToken,\n        delimiter,\n        startAfter,\n      )\n      ended = !result.isTruncated\n      continuationToken = result.nextContinuationToken\n      for (const obj of result.objects) {\n        yield obj\n      }\n    } while (!ended)\n  }\n\n  private async listObjectsV2WithMetadataQuery(\n    bucketName: string,\n    prefix: string,\n    continuationToken: string,\n    delimiter: string,\n    startAfter: string,\n  ) {\n    const queries = []\n\n    // Call for listing objects v2 API\n    queries.push(`list-type=2`)\n    queries.push(`encoding-type=url`)\n    // escape every value in query string, except maxKeys\n    queries.push(`prefix=${uriEscape(prefix)}`)\n    queries.push(`delimiter=${uriEscape(delimiter)}`)\n    queries.push(`metadata=true`)\n\n    if (continuationToken) {\n      continuationToken = uriEscape(continuationToken)\n      queries.push(`continuation-token=${continuationToken}`)\n    }\n    // Set start-after\n    if (startAfter) {\n      startAfter = uriEscape(startAfter)\n      queries.push(`start-after=${startAfter}`)\n    }\n    queries.push(`max-keys=1000`)\n    queries.sort()\n    let query = ''\n    if (queries.length > 0) {\n      query = `${queries.join('&')}`\n    }\n    const method = 'GET'\n    const res = await this.client.makeRequestAsync({ method, bucketName, query })\n    return parseListObjectsV2WithMetadata(await readAsString(res))\n  }\n}\n"],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA,OAAO,KAAKA,MAAM;AAElB,OAAO,KAAKC,MAAM,MAAM,eAAc;AAEtC,SAASC,SAAS,EAAEC,QAAQ,EAAEC,iBAAiB,EAAEC,aAAa,EAAEC,SAAS,QAAQ,cAAa;AAC9F,SAASC,YAAY,QAAQ,gBAAe;AAE5C,SAASC,8BAA8B,QAAQ,kBAAiB;AAEhE,OAAO,MAAMC,UAAU,CAAC;EAGtBC,WAAWA,CAACC,MAAmB,EAAE;IAC/B,IAAI,CAACA,MAAM,GAAGA,MAAM;EACtB;;EAEA;AACF;AACA;AACA;AACA;AACA;AACA;AACA;AACA;EACSC,yBAAyBA,CAC9BC,UAAkB,EAClBC,MAAe,EACfC,SAAmB,EACnBC,UAAmB,EACmB;IACtC,IAAIF,MAAM,KAAKG,SAAS,EAAE;MACxBH,MAAM,GAAG,EAAE;IACb;IACA,IAAIC,SAAS,KAAKE,SAAS,EAAE;MAC3BF,SAAS,GAAG,KAAK;IACnB;IACA,IAAIC,UAAU,KAAKC,SAAS,EAAE;MAC5BD,UAAU,GAAG,EAAE;IACjB;IACA,IAAI,CAACZ,iBAAiB,CAACS,UAAU,CAAC,EAAE;MAClC,MAAM,IAAIZ,MAAM,CAACiB,sBAAsB,CAAC,uBAAuB,GAAGL,UAAU,CAAC;IAC/E;IACA,IAAI,CAACR,aAAa,CAACS,MAAM,CAAC,EAAE;MAC1B,MAAM,IAAIb,MAAM,CAACkB,kBAAkB,CAAE,oBAAmBL,MAAO,EAAC,CAAC;IACnE;IACA,IAAI,CAACX,QAAQ,CAACW,MAAM,CAAC,EAAE;MACrB,MAAM,IAAIM,SAAS,CAAC,mCAAmC,CAAC;IAC1D;IACA,IAAI,CAAClB,SAAS,CAACa,SAAS,CAAC,EAAE;MACzB,MAAM,IAAIK,SAAS,CAAC,uCAAuC,CAAC;IAC9D;IACA,IAAI,CAACjB,QAAQ,CAACa,UAAU,CAAC,EAAE;MACzB,MAAM,IAAII,SAAS,CAAC,uCAAuC,CAAC;IAC9D;;IAEA;IACA,MAAMC,SAAS,GAAGN,SAAS,GAAG,EAAE,GAAG,GAAG;IACtC,OAAOf,MAAM,CAACsB,QAAQ,CAACC,IAAI,CAAC,IAAI,CAACC,4BAA4B,CAACX,UAAU,EAAEC,MAAM,EAAEO,SAAS,EAAEL,UAAU,CAAC,EAAE;MACxGS,UAAU,EAAE;IACd,CAAC,CAAC;EACJ;EAEA,OAAeD,4BAA4BA,CACzCX,UAAkB,EAClBC,MAAc,EACdO,SAAiB,EACjBL,UAAkB,EACqB;IACvC,IAAIU,KAAK,GAAG,KAAK;IACjB,IAAIC,iBAAiB,GAAG,EAAE;IAC1B,GAAG;MACD,MAAMC,MAAM,GAAG,MAAM,IAAI,CAACC,8BAA8B,CACtDhB,UAAU,EACVC,MAAM,EACNa,iBAAiB,EACjBN,SAAS,EACTL,UACF,CAAC;MACDU,KAAK,GAAG,CAACE,MAAM,CAACE,WAAW;MAC3BH,iBAAiB,GAAGC,MAAM,CAACG,qBAAqB;MAChD,KAAK,MAAMC,GAAG,IAAIJ,MAAM,CAACK,OAAO,EAAE;QAChC,MAAMD,GAAG;MACX;IACF,CAAC,QAAQ,CAACN,KAAK;EACjB;EAEA,MAAcG,8BAA8BA,CAC1ChB,UAAkB,EAClBC,MAAc,EACda,iBAAyB,EACzBN,SAAiB,EACjBL,UAAkB,EAClB;IACA,MAAMkB,OAAO,GAAG,EAAE;;IAElB;IACAA,OAAO,CAACC,IAAI,CAAE,aAAY,CAAC;IAC3BD,OAAO,CAACC,IAAI,CAAE,mBAAkB,CAAC;IACjC;IACAD,OAAO,CAACC,IAAI,CAAE,UAAS7B,SAAS,CAACQ,MAAM,CAAE,EAAC,CAAC;IAC3CoB,OAAO,CAACC,IAAI,CAAE,aAAY7B,SAAS,CAACe,SAAS,CAAE,EAAC,CAAC;IACjDa,OAAO,CAACC,IAAI,CAAE,eAAc,CAAC;IAE7B,IAAIR,iBAAiB,EAAE;MACrBA,iBAAiB,GAAGrB,SAAS,CAACqB,iBAAiB,CAAC;MAChDO,OAAO,CAACC,IAAI,CAAE,sBAAqBR,iBAAkB,EAAC,CAAC;IACzD;IACA;IACA,IAAIX,UAAU,EAAE;MACdA,UAAU,GAAGV,SAAS,CAACU,UAAU,CAAC;MAClCkB,OAAO,CAACC,IAAI,CAAE,eAAcnB,UAAW,EAAC,CAAC;IAC3C;IACAkB,OAAO,CAACC,IAAI,CAAE,eAAc,CAAC;IAC7BD,OAAO,CAACE,IAAI,CAAC,CAAC;IACd,IAAIC,KAAK,GAAG,EAAE;IACd,IAAIH,OAAO,CAACI,MAAM,GAAG,CAAC,EAAE;MACtBD,KAAK,GAAI,GAAEH,OAAO,CAACK,IAAI,CAAC,GAAG,CAAE,EAAC;IAChC;IACA,MAAMC,MAAM,GAAG,KAAK;IACpB,MAAMC,GAAG,GAAG,MAAM,IAAI,CAAC9B,MAAM,CAAC+B,gBAAgB,CAAC;MAAEF,MAAM;MAAE3B,UAAU;MAAEwB;IAAM,CAAC,CAAC;IAC7E,OAAO7B,8BAA8B,CAAC,MAAMD,YAAY,CAACkC,GAAG,CAAC,CAAC;EAChE;AACF"}