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Edit File: requestdata.js

Object.defineProperty(exports, '__esModule', { value: true });

const cookie = require('./cookie.js');
const debugBuild = require('./debug-build.js');
const is = require('./is.js');
const logger = require('./logger.js');
const normalize = require('./normalize.js');
const url = require('./url.js');

const DEFAULT_INCLUDES = {
  ip: false,
  request: true,
  transaction: true,
  user: true,
};
const DEFAULT_REQUEST_INCLUDES = ['cookies', 'data', 'headers', 'method', 'query_string', 'url'];
const DEFAULT_USER_INCLUDES = ['id', 'username', 'email'];

/**
 * Sets parameterized route as transaction name e.g.: `GET /users/:id`
 * Also adds more context data on the transaction from the request.
 *
 * @deprecated This utility will be removed in v8.
 */
function addRequestDataToTransaction(
  transaction,
  req,
  deps,
) {
  if (!transaction) return;
  // eslint-disable-next-line deprecation/deprecation
  if (!transaction.metadata.source || transaction.metadata.source === 'url') {
    // Attempt to grab a parameterized route off of the request
    const [name, source] = extractPathForTransaction(req, { path: true, method: true });
    transaction.updateName(name);
    // TODO: SEMANTIC_ATTRIBUTE_SENTRY_SOURCE is in core, align this once we merge utils & core
    // eslint-disable-next-line deprecation/deprecation
    transaction.setMetadata({ source });
  }
  transaction.setAttribute('url', req.originalUrl || req.url);
  if (req.baseUrl) {
    transaction.setAttribute('baseUrl', req.baseUrl);
  }
  // TODO: We need to rewrite this to a flat format?
  // eslint-disable-next-line deprecation/deprecation
  transaction.setData('query', extractQueryParams(req, deps));
}

/**
 * Extracts a complete and parameterized path from the request object and uses it to construct transaction name.
 * If the parameterized transaction name cannot be extracted, we fall back to the raw URL.
 *
 * Additionally, this function determines and returns the transaction name source
 *
 * eg. GET /mountpoint/user/:id
 *
 * @param req A request object
 * @param options What to include in the transaction name (method, path, or a custom route name to be
 *                used instead of the request's route)
 *
 * @returns A tuple of the fully constructed transaction name [0] and its source [1] (can be either 'route' or 'url')
 */
function extractPathForTransaction(
  req,
  options = {},
) {
  const method = req.method && req.method.toUpperCase();

let path = '';
  let source = 'url';

// Check to see if there's a parameterized route we can use (as there is in Express)
  if (options.customRoute || req.route) {
    path = options.customRoute || `${req.baseUrl || ''}${req.route && req.route.path}`;
    source = 'route';
  }

// Otherwise, just take the original URL
  else if (req.originalUrl || req.url) {
    path = url.stripUrlQueryAndFragment(req.originalUrl || req.url || '');
  }

let name = '';
  if (options.method && method) {
    name += method;
  }
  if (options.method && options.path) {
    name += ' ';
  }
  if (options.path && path) {
    name += path;
  }

return [name, source];
}

/** JSDoc */
function extractTransaction(req, type) {
  switch (type) {
    case 'path': {
      return extractPathForTransaction(req, { path: true })[0];
    }
    case 'handler': {
      return (req.route && req.route.stack && req.route.stack[0] && req.route.stack[0].name) || '<anonymous>';
    }
    case 'methodPath':
    default: {
      // if exist _reconstructedRoute return that path instead of route.path
      const customRoute = req._reconstructedRoute ? req._reconstructedRoute : undefined;
      return extractPathForTransaction(req, { path: true, method: true, customRoute })[0];
    }
  }
}

/** JSDoc */
function extractUserData(
  user

,
  keys,
) {
  const extractedUser = {};
  const attributes = Array.isArray(keys) ? keys : DEFAULT_USER_INCLUDES;

attributes.forEach(key => {
    if (user && key in user) {
      extractedUser[key] = user[key];
    }
  });

return extractedUser;
}

/**
 * Normalize data from the request object, accounting for framework differences.
 *
 * @param req The request object from which to extract data
 * @param options.include An optional array of keys to include in the normalized data. Defaults to
 * DEFAULT_REQUEST_INCLUDES if not provided.
 * @param options.deps Injected, platform-specific dependencies
 * @returns An object containing normalized request data
 */
function extractRequestData(
  req,
  options

,
) {
  const { include = DEFAULT_REQUEST_INCLUDES, deps } = options || {};
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  const requestData = {};

// headers:
  //   node, express, koa, nextjs: req.headers
  const headers = (req.headers || {})

;
  // method:
  //   node, express, koa, nextjs: req.method
  const method = req.method;
  // host:
  //   express: req.hostname in > 4 and req.host in < 4
  //   koa: req.host
  //   node, nextjs: req.headers.host
  // Express 4 mistakenly strips off port number from req.host / req.hostname so we can't rely on them
  // See: https://github.com/expressjs/express/issues/3047#issuecomment-236653223
  // Also: https://github.com/getsentry/sentry-javascript/issues/1917
  const host = headers.host || req.hostname || req.host || '<no host>';
  // protocol:
  //   node, nextjs: <n/a>
  //   express, koa: req.protocol
  const protocol = req.protocol === 'https' || (req.socket && req.socket.encrypted) ? 'https' : 'http';
  // url (including path and query string):
  //   node, express: req.originalUrl
  //   koa, nextjs: req.url
  const originalUrl = req.originalUrl || req.url || '';
  // absolute url
  const absoluteUrl = originalUrl.startsWith(protocol) ? originalUrl : `${protocol}://${host}${originalUrl}`;
  include.forEach(key => {
    switch (key) {
      case 'headers': {
        requestData.headers = headers;

// Remove the Cookie header in case cookie data should not be included in the event
        if (!include.includes('cookies')) {
          delete (requestData.headers ).cookie;
        }

break;
      }
      case 'method': {
        requestData.method = method;
        break;
      }
      case 'url': {
        requestData.url = absoluteUrl;
        break;
      }
      case 'cookies': {
        // cookies:
        //   node, express, koa: req.headers.cookie
        //   vercel, sails.js, express (w/ cookie middleware), nextjs: req.cookies
        requestData.cookies =
          // TODO (v8 / #5257): We're only sending the empty object for backwards compatibility, so the last bit can
          // come off in v8
          req.cookies || (headers.cookie && cookie.parseCookie(headers.cookie)) || {};
        break;
      }
      case 'query_string': {
        // query string:
        //   node: req.url (raw)
        //   express, koa, nextjs: req.query
        // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
        requestData.query_string = extractQueryParams(req, deps);
        break;
      }
      case 'data': {
        if (method === 'GET' || method === 'HEAD') {
          break;
        }
        // body data:
        //   express, koa, nextjs: req.body
        //
        //   when using node by itself, you have to read the incoming stream(see
        //   https://nodejs.dev/learn/get-http-request-body-data-using-nodejs); if a user is doing that, we can't know
        //   where they're going to store the final result, so they'll have to capture this data themselves
        if (req.body !== undefined) {
          requestData.data = is.isString(req.body) ? req.body : JSON.stringify(normalize.normalize(req.body));
        }
        break;
      }
      default: {
        if ({}.hasOwnProperty.call(req, key)) {
          requestData[key] = (req )[key];
        }
      }
    }
  });

return requestData;
}

/**
 * Add data from the given request to the given event
 *
 * @param event The event to which the request data will be added
 * @param req Request object
 * @param options.include Flags to control what data is included
 * @param options.deps Injected platform-specific dependencies
 * @returns The mutated `Event` object
 */
function addRequestDataToEvent(
  event,
  req,
  options,
) {
  const include = {
    ...DEFAULT_INCLUDES,
    ...(options && options.include),
  };

if (include.request) {
    const extractedRequestData = Array.isArray(include.request)
      ? extractRequestData(req, { include: include.request, deps: options && options.deps })
      : extractRequestData(req, { deps: options && options.deps });

event.request = {
      ...event.request,
      ...extractedRequestData,
    };
  }

if (include.user) {
    const extractedUser = req.user && is.isPlainObject(req.user) ? extractUserData(req.user, include.user) : {};

if (Object.keys(extractedUser).length) {
      event.user = {
        ...event.user,
        ...extractedUser,
      };
    }
  }

// client ip:
  //   node, nextjs: req.socket.remoteAddress
  //   express, koa: req.ip
  if (include.ip) {
    const ip = req.ip || (req.socket && req.socket.remoteAddress);
    if (ip) {
      event.user = {
        ...event.user,
        ip_address: ip,
      };
    }
  }

if (include.transaction && !event.transaction) {
    // TODO do we even need this anymore?
    // TODO make this work for nextjs
    event.transaction = extractTransaction(req, include.transaction);
  }

return event;
}

function extractQueryParams(
  req,
  deps,
) {
  // url (including path and query string):
  //   node, express: req.originalUrl
  //   koa, nextjs: req.url
  let originalUrl = req.originalUrl || req.url || '';

if (!originalUrl) {
    return;
  }

// The `URL` constructor can't handle internal URLs of the form `/some/path/here`, so stick a dummy protocol and
  // hostname on the beginning. Since the point here is just to grab the query string, it doesn't matter what we use.
  if (originalUrl.startsWith('/')) {
    originalUrl = `http://dogs.are.great${originalUrl}`;
  }

try {
    return (
      req.query ||
      (typeof URL !== 'undefined' && new URL(originalUrl).search.slice(1)) ||
      // In Node 8, `URL` isn't in the global scope, so we have to use the built-in module from Node
      (deps && deps.url && deps.url.parse(originalUrl).query) ||
      undefined
    );
  } catch (e2) {
    return undefined;
  }
}

/**
 * Transforms a `Headers` object that implements the `Web Fetch API` (https://developer.mozilla.org/en-US/docs/Web/API/Headers) into a simple key-value dict.
 * The header keys will be lower case: e.g. A "Content-Type" header will be stored as "content-type".
 */
// TODO(v8): Make this function return undefined when the extraction fails.
function winterCGHeadersToDict(winterCGHeaders) {
  const headers = {};
  try {
    winterCGHeaders.forEach((value, key) => {
      if (typeof value === 'string') {
        // We check that value is a string even though it might be redundant to make sure prototype pollution is not possible.
        headers[key] = value;
      }
    });
  } catch (e) {
    debugBuild.DEBUG_BUILD &&
      logger.logger.warn('Sentry failed extracting headers from a request object. If you see this, please file an issue.');
  }

return headers;
}

/**
 * Converts a `Request` object that implements the `Web Fetch API` (https://developer.mozilla.org/en-US/docs/Web/API/Headers) into the format that the `RequestData` integration understands.
 */
function winterCGRequestToRequestData(req) {
  const headers = winterCGHeadersToDict(req.headers);
  return {
    method: req.method,
    url: req.url,
    headers,
  };
}

exports.DEFAULT_USER_INCLUDES = DEFAULT_USER_INCLUDES;
exports.addRequestDataToEvent = addRequestDataToEvent;
exports.addRequestDataToTransaction = addRequestDataToTransaction;
exports.extractPathForTransaction = extractPathForTransaction;
exports.extractRequestData = extractRequestData;
exports.winterCGHeadersToDict = winterCGHeadersToDict;
exports.winterCGRequestToRequestData = winterCGRequestToRequestData;
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