package.build.cjs.object.js Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of utils Show documentation
Utilities for all Sentry JavaScript SDKs
The newest version!
Object.defineProperty(exports, '__esModule', { value: true });

const browser = require('./browser.js');
const debugBuild = require('./debug-build.js');
const is = require('./is.js');
const logger = require('./logger.js');
const string = require('./string.js');

/**
 * Replace a method in an object with a wrapped version of itself.
 *
 * @param source An object that contains a method to be wrapped.
 * @param name The name of the method to be wrapped.
 * @param replacementFactory A higher-order function that takes the original version of the given method and returns a
 * wrapped version. Note: The function returned by `replacementFactory` needs to be a non-arrow function, in order to
 * preserve the correct value of `this`, and the original method must be called using `origMethod.call(this, )` or `origMethod.apply(this, [])` (rather than being called directly), again to preserve `this`.
 * @returns void
 */
function fill(source, name, replacementFactory) {
  if (!(name in source)) {
    return;
  }

  const original = source[name] ;
  const wrapped = replacementFactory(original) ;

  // Make sure it's a function first, as we need to attach an empty prototype for `defineProperties` to work
  // otherwise it'll throw "TypeError: Object.defineProperties called on non-object"
  if (typeof wrapped === 'function') {
    markFunctionWrapped(wrapped, original);
  }

  source[name] = wrapped;
}

/**
 * Defines a non-enumerable property on the given object.
 *
 * @param obj The object on which to set the property
 * @param name The name of the property to be set
 * @param value The value to which to set the property
 */
function addNonEnumerableProperty(obj, name, value) {
  try {
    Object.defineProperty(obj, name, {
      // enumerable: false, // the default, so we can save on bundle size by not explicitly setting it
      value: value,
      writable: true,
      configurable: true,
    });
  } catch (o_O) {
    debugBuild.DEBUG_BUILD && logger.logger.log(`Failed to add non-enumerable property "${name}" to object`, obj);
  }
}

/**
 * Remembers the original function on the wrapped function and
 * patches up the prototype.
 *
 * @param wrapped the wrapper function
 * @param original the original function that gets wrapped
 */
function markFunctionWrapped(wrapped, original) {
  try {
    const proto = original.prototype || {};
    wrapped.prototype = original.prototype = proto;
    addNonEnumerableProperty(wrapped, '__sentry_original__', original);
  } catch (o_O) {} // eslint-disable-line no-empty
}

/**
 * This extracts the original function if available.  See
 * `markFunctionWrapped` for more information.
 *
 * @param func the function to unwrap
 * @returns the unwrapped version of the function if available.
 */
function getOriginalFunction(func) {
  return func.__sentry_original__;
}

/**
 * Encodes given object into url-friendly format
 *
 * @param object An object that contains serializable values
 * @returns string Encoded
 */
function urlEncode(object) {
  return Object.keys(object)
    .map(key => `${encodeURIComponent(key)}=${encodeURIComponent(object[key])}`)
    .join('&');
}

/**
 * Transforms any `Error` or `Event` into a plain object with all of their enumerable properties, and some of their
 * non-enumerable properties attached.
 *
 * @param value Initial source that we have to transform in order for it to be usable by the serializer
 * @returns An Event or Error turned into an object - or the value argument itself, when value is neither an Event nor
 *  an Error.
 */
function convertToPlainObject(
  value,
)

 {
  if (is.isError(value)) {
    return {
      message: value.message,
      name: value.name,
      stack: value.stack,
      ...getOwnProperties(value),
    };
  } else if (is.isEvent(value)) {
    const newObj

 = {
      type: value.type,
      target: serializeEventTarget(value.target),
      currentTarget: serializeEventTarget(value.currentTarget),
      ...getOwnProperties(value),
    };

    if (typeof CustomEvent !== 'undefined' && is.isInstanceOf(value, CustomEvent)) {
      newObj.detail = value.detail;
    }

    return newObj;
  } else {
    return value;
  }
}

/** Creates a string representation of the target of an `Event` object */
function serializeEventTarget(target) {
  try {
    return is.isElement(target) ? browser.htmlTreeAsString(target) : Object.prototype.toString.call(target);
  } catch (_oO) {
    return '';
  }
}

/** Filters out all but an object's own properties */
function getOwnProperties(obj) {
  if (typeof obj === 'object' && obj !== null) {
    const extractedProps = {};
    for (const property in obj) {
      if (Object.prototype.hasOwnProperty.call(obj, property)) {
        extractedProps[property] = (obj )[property];
      }
    }
    return extractedProps;
  } else {
    return {};
  }
}

/**
 * Given any captured exception, extract its keys and create a sorted
 * and truncated list that will be used inside the event message.
 * eg. `Non-error exception captured with keys: foo, bar, baz`
 */
function extractExceptionKeysForMessage(exception, maxLength = 40) {
  const keys = Object.keys(convertToPlainObject(exception));
  keys.sort();

  const firstKey = keys[0];

  if (!firstKey) {
    return '[object has no keys]';
  }

  if (firstKey.length >= maxLength) {
    return string.truncate(firstKey, maxLength);
  }

  for (let includedKeys = keys.length; includedKeys > 0; includedKeys--) {
    const serialized = keys.slice(0, includedKeys).join(', ');
    if (serialized.length > maxLength) {
      continue;
    }
    if (includedKeys === keys.length) {
      return serialized;
    }
    return string.truncate(serialized, maxLength);
  }

  return '';
}

/**
 * Given any object, return a new object having removed all fields whose value was `undefined`.
 * Works recursively on objects and arrays.
 *
 * Attention: This function keeps circular references in the returned object.
 */
function dropUndefinedKeys(inputValue) {
  // This map keeps track of what already visited nodes map to.
  // Our Set - based memoBuilder doesn't work here because we want to the output object to have the same circular
  // references as the input object.
  const memoizationMap = new Map();

  // This function just proxies `_dropUndefinedKeys` to keep the `memoBuilder` out of this function's API
  return _dropUndefinedKeys(inputValue, memoizationMap);
}

function _dropUndefinedKeys(inputValue, memoizationMap) {
  if (isPojo(inputValue)) {
    // If this node has already been visited due to a circular reference, return the object it was mapped to in the new object
    const memoVal = memoizationMap.get(inputValue);
    if (memoVal !== undefined) {
      return memoVal ;
    }

    const returnValue = {};
    // Store the mapping of this value in case we visit it again, in case of circular data
    memoizationMap.set(inputValue, returnValue);

    for (const key of Object.getOwnPropertyNames(inputValue)) {
      if (typeof inputValue[key] !== 'undefined') {
        returnValue[key] = _dropUndefinedKeys(inputValue[key], memoizationMap);
      }
    }

    return returnValue ;
  }

  if (Array.isArray(inputValue)) {
    // If this node has already been visited due to a circular reference, return the array it was mapped to in the new object
    const memoVal = memoizationMap.get(inputValue);
    if (memoVal !== undefined) {
      return memoVal ;
    }

    const returnValue = [];
    // Store the mapping of this value in case we visit it again, in case of circular data
    memoizationMap.set(inputValue, returnValue);

    inputValue.forEach((item) => {
      returnValue.push(_dropUndefinedKeys(item, memoizationMap));
    });

    return returnValue ;
  }

  return inputValue;
}

function isPojo(input) {
  if (!is.isPlainObject(input)) {
    return false;
  }

  try {
    const name = (Object.getPrototypeOf(input) ).constructor.name;
    return !name || name === 'Object';
  } catch (e) {
    return true;
  }
}

/**
 * Ensure that something is an object.
 *
 * Turns `undefined` and `null` into `String`s and all other primitives into instances of their respective wrapper
 * classes (String, Boolean, Number, etc.). Acts as the identity function on non-primitives.
 *
 * @param wat The subject of the objectification
 * @returns A version of `wat` which can safely be used with `Object` class methods
 */
function objectify(wat) {
  let objectified;
  switch (true) {
    case wat === undefined || wat === null:
      objectified = new String(wat);
      break;

    // Though symbols and bigints do have wrapper classes (`Symbol` and `BigInt`, respectively), for whatever reason
    // those classes don't have constructors which can be used with the `new` keyword. We therefore need to cast each as
    // an object in order to wrap it.
    case typeof wat === 'symbol' || typeof wat === 'bigint':
      objectified = Object(wat);
      break;

    // this will catch the remaining primitives: `String`, `Number`, and `Boolean`
    case is.isPrimitive(wat):
      // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
      objectified = new (wat ).constructor(wat);
      break;

    // by process of elimination, at this point we know that `wat` must already be an object
    default:
      objectified = wat;
      break;
  }
  return objectified;
}

exports.addNonEnumerableProperty = addNonEnumerableProperty;
exports.convertToPlainObject = convertToPlainObject;
exports.dropUndefinedKeys = dropUndefinedKeys;
exports.extractExceptionKeysForMessage = extractExceptionKeysForMessage;
exports.fill = fill;
exports.getOriginalFunction = getOriginalFunction;
exports.markFunctionWrapped = markFunctionWrapped;
exports.objectify = objectify;
exports.urlEncode = urlEncode;
//# sourceMappingURL=object.js.map