How to use getCBOR method in wpt

Best JavaScript code snippet using wpt

utils.js

Source:utils.js

...66function parseCosePublicKey(coseKey) {67  // Parse a CTAP2 canonical CBOR encoding form key.68  // https://fidoalliance.org/specs/fido-v2.0-id-20180227/fido-client-to-authenticator-protocol-v2.0-id-20180227.html#ctap2-canonical-cbor-encoding-form69  let parsed = new Cbor(coseKey);70  let cbor = parsed.getCBOR();71  let key = {72    type: cbor[1],73    alg: cbor[3],74  };75  if (key.type != 2)76    assert_unreached("Unknown key type: " + key.type);77  key.crv = cbor[-1];78  key.x = new Uint8Array(cbor[-2]);79  key.y = new Uint8Array(cbor[-3]);80  return key;81}82function parseAttestedCredentialData(attestedCredentialData) {83  // Parse the attested credential data according to84  // https://w3c.github.io/webauthn/#attested-credential-data85  let aaguid = attestedCredentialData.slice(0, 16);86  let credentialIdLength = (attestedCredentialData[16] << 8)87                         + attestedCredentialData[17];88  let credentialId =89      attestedCredentialData.slice(18, 18 + credentialIdLength);90  let credentialPublicKey = parseCosePublicKey(91      attestedCredentialData.slice(18 + credentialIdLength,92                                   attestedCredentialData.length));93  return { aaguid, credentialIdLength, credentialId, credentialPublicKey };94}95function parseAuthenticatorData(authenticatorData) {96  // Parse the authenticator data according to97  // https://w3c.github.io/webauthn/#sctn-authenticator-data98  assert_greater_than_equal(authenticatorData.length, 37);99  let flags = authenticatorData[32];100  let counter = authenticatorData.slice(33, 37);101  let attestedCredentialData = authenticatorData.length > 37 ?102        parseAttestedCredentialData(authenticatorData.slice(37)) : null;103  let extensions = null;104  if (attestedCredentialData &&105      authenticatorData.length > 37 + attestedCredentialData.length) {106    extensions = authenticatorData.slice(37 + attestedCredentialData.length);107  }108  return {109    rpIdHash: authenticatorData.slice(0, 32),110    flags: {111      up: !!(flags & 0x01),112      uv: !!(flags & 0x04),113      at: !!(flags & 0x40),114      ed: !!(flags & 0x80),115    },116    counter: (counter[0] << 24)117           + (counter[1] << 16)118           + (counter[2] << 8)119           + counter[3],120    attestedCredentialData,121    extensions,122  };123}124// Taken from125// https://cs.chromium.org/chromium/src/chrome/browser/resources/cryptotoken/cbor.js?rcl=c9b6055cf9c158fb4119afd561a591f8fc95aefe126class Cbor {127  constructor(buffer) {128    this.slice = new Uint8Array(buffer);129  }130  get data() {131    return this.slice;132  }133  get length() {134    return this.slice.length;135  }136  get empty() {137    return this.slice.length == 0;138  }139  get hex() {140    const hexTable = '0123456789abcdef';141    let s = '';142    for (let i = 0; i < this.data.length; i++) {143      s += hexTable.charAt(this.data[i] >> 4);144      s += hexTable.charAt(this.data[i] & 15);145    }146    return s;147  }148  compare(other) {149    if (this.length < other.length) {150      return -1;151    } else if (this.length > other.length) {152      return 1;153    }154    for (let i = 0; i < this.length; i++) {155      if (this.slice[i] < other.slice[i]) {156        return -1;157      } else if (this.slice[i] > other.slice[i]) {158        return 1;159      }160    }161    return 0;162  }163  getU8() {164    if (this.empty) {165      throw('Cbor: empty during getU8');166    }167    const byte = this.slice[0];168    this.slice = this.slice.subarray(1);169    return byte;170  }171  skip(n) {172    if (this.length < n) {173      throw('Cbor: too few bytes to skip');174    }175    this.slice = this.slice.subarray(n);176  }177  getBytes(n) {178    if (this.length < n) {179      throw('Cbor: insufficient bytes in getBytes');180    }181    const ret = this.slice.subarray(0, n);182    this.slice = this.slice.subarray(n);183    return ret;184  }185  getCBORHeader() {186    const copy = new Cbor(this.slice);187    const a = this.getU8();188    const majorType = a >> 5;189    const info = a & 31;190    if (info < 24) {191      return [majorType, info, new Cbor(copy.getBytes(1))];192    } else if (info < 28) {193      const lengthLength = 1 << (info - 24);194      let data = this.getBytes(lengthLength);195      let value = 0;196      for (let i = 0; i < lengthLength; i++) {197        // Javascript has problems handling uint64s given the limited range of198        // a double.199        if (value > 35184372088831) {200          throw('Cbor: cannot represent CBOR number');201        }202        // Not using bitwise operations to avoid truncating to 32 bits.203        value *= 256;204        value += data[i];205      }206      switch (lengthLength) {207        case 1:208          if (value < 24) {209            throw('Cbor: value should have been encoded in single byte');210          }211          break;212        case 2:213          if (value < 256) {214            throw('Cbor: non-minimal integer');215          }216          break;217        case 4:218          if (value < 65536) {219            throw('Cbor: non-minimal integer');220          }221          break;222        case 8:223          if (value < 4294967296) {224            throw('Cbor: non-minimal integer');225          }226          break;227      }228      return [majorType, value, new Cbor(copy.getBytes(1 + lengthLength))];229    } else {230      throw('Cbor: CBOR contains unhandled info value ' + info);231    }232  }233  getCBOR() {234    const [major, value] = this.getCBORHeader();235    switch (major) {236      case 0:237        return value;238      case 1:239        return 0 - (1 + value);240      case 2:241        return this.getBytes(value);242      case 3:243        return this.getBytes(value);244      case 4: {245        let ret = new Array(value);246        for (let i = 0; i < value; i++) {247          ret[i] = this.getCBOR();248        }249        return ret;250      }251      case 5:252        if (value == 0) {253          return {};254        }255        let copy = new Cbor(this.data);256        const [firstKeyMajor] = copy.getCBORHeader();257        if (firstKeyMajor == 3) {258          // String-keyed map.259          let lastKeyHeader = new Cbor(new Uint8Array(0));260          let lastKeyBytes = new Cbor(new Uint8Array(0));261          let ret = {};262          for (let i = 0; i < value; i++) {263            const [keyMajor, keyLength, keyHeader] = this.getCBORHeader();264            if (keyMajor != 3) {265              throw('Cbor: non-string in string-valued map');266            }267            const keyBytes = new Cbor(this.getBytes(keyLength));268            if (i > 0) {269              const headerCmp = lastKeyHeader.compare(keyHeader);270              if (headerCmp > 0 ||271                  (headerCmp == 0 && lastKeyBytes.compare(keyBytes) >= 0)) {272                throw(273                    'Cbor: map keys in wrong order: ' + lastKeyHeader.hex +274                    '/' + lastKeyBytes.hex + ' ' + keyHeader.hex + '/' +275                    keyBytes.hex);276              }277            }278            lastKeyHeader = keyHeader;279            lastKeyBytes = keyBytes;280            ret[keyBytes.parseUTF8()] = this.getCBOR();281          }282          return ret;283        } else if (firstKeyMajor == 0 || firstKeyMajor == 1) {284          // Number-keyed map.285          let lastKeyHeader = new Cbor(new Uint8Array(0));286          let ret = {};287          for (let i = 0; i < value; i++) {288            let [keyMajor, keyValue, keyHeader] = this.getCBORHeader();289            if (keyMajor != 0 && keyMajor != 1) {290              throw('Cbor: non-number in number-valued map');291            }292            if (i > 0 && lastKeyHeader.compare(keyHeader) >= 0) {293              throw(294                  'Cbor: map keys in wrong order: ' + lastKeyHeader.hex + ' ' +295                  keyHeader.hex);296            }297            lastKeyHeader = keyHeader;298            if (keyMajor == 1) {299              keyValue = 0 - (1 + keyValue);300            }301            ret[keyValue] = this.getCBOR();302          }303          return ret;304        } else {305          throw('Cbor: map keyed by invalid major type ' + firstKeyMajor);306        }307      default:308        throw('Cbor: unhandled major type ' + major);309    }310  }311  parseUTF8() {312    return (new TextDecoder('utf-8')).decode(this.slice);313  }...

Using AI Code Generation

1var wpt = require('./wpt.js');2wpt.getCBOR(url, function(err, data) {3  if (err) throw err;4  console.log(data);5});6var wpt = require('./wpt.js');7wpt.getXML(url, function(err, data) {8  if (err) throw err;9  console.log(data);10});11var wpt = require('./wpt.js');12wpt.getJSON(url, function(err, data) {13  if (err) throw err;14  console.log(data);15});16var wpt = require('./wpt.js');17wpt.getHar(url, function(err, data) {18  if (err) throw err;19  console.log(data);20});21var wpt = require('./wpt.js');22wpt.getWaterfall(url, function(err, data) {23  if (err) throw err;24  console.log(data);25});26var wpt = require('./wpt.js');27wpt.getScreenshot(url, function(err, data) {28  if (err) throw err;29  console.log(data);30});31var wpt = require('./wpt.js');32wpt.getVideo(url, function(err, data) {33  if (err) throw err;

Using AI Code Generation

1var wpt = require('./wpt.js');2	if(err){3		console.log(err);4		return;5	}6	console.log(data);7});8### getCBOR(url, callback)9### getCBOR(url, options, callback)10var wpt = require('./wpt.js');11	if(err){12		console.log(err);13		return;14	}15	console.log(data);16});17[Anurag Goel](

Using AI Code Generation

1var wptools = require('wptools');2var fs = require('fs');3var file = fs.createWriteStream('output.json');4var json = wptools.getCBOR('Barack Obama', {format: 'json'}, function(err, res) {5    if (err) {6        console.log(err);7    }8    else {9        file.write(JSON.stringify(res));10    }11});

Using AI Code Generation

1const wptools = require('wptools');2const fs = require('fs');3const promise = wptools.getCBOR('Albert Einstein');4promise.then((data) => {5    data.then((data) => {6        fs.writeFile('data.json', JSON.stringify(data), (err) => {7            if (err) throw err;8            console.log('The file has been saved!');9        });10    }).catch((err) => {11        console.log(err);12    });13}).catch((err) => {14    console.log(err);15});

Using AI Code Generation

1var wpt = require('webpagetest');2var options = {3};4var api = new wpt(options);5function getCBOR(url, cb) {6    api.runTest(url, {7    }, function (err, data) {8        if (err) {9            console.log(err);10            return;11        }12        api.getTestResults(data.data.testId, function (err, data) {13            if (err) {14                console.log(err);15                return;16            }17            cb(data.data.median.firstView);18        });19    });20}21getCBOR(url, function (data) {22    console.log(data);23});

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