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const express = require('express');const path = require('path');const j79 = require('j79-utils');const nexlEngine = require('nexl-engine');const storageUtils = require('../../api/storage-utils');const security = require('../../api/security');const utils = require('../../api/utils');const logger = require('../../api/logger');const restUtls = require('../../common/rest-urls');const di = require('../../common/data-interchange-constants');const confMgmt = require('../../api/conf-mgmt');const confConsts = require('../../common/conf-constants');const diConsts = require('../../common/data-interchange-constants');const router = express.Router();//////////////////////////////////////////////////////////////////////////////// [/nexl/storage/set-var]//////////////////////////////////////////////////////////////////////////////router.post(restUtls.STORAGE.URLS.SET_VAR, function (req, res) { // checking for permissions const username = security.getLoggedInUsername(req); if (!security.hasWritePermission(username)) { logger.log.error('The [%s] user doesn\'t have write permission to update JavaScript files', username); security.sendError(res, 'No write permissions'); return; } // resolving params const relativePath = req.body['relativePath']; const varName = req.body['varName']; const newValue = req.body['newValue']; logger.log.log('verbose', `Got a [${restUtls.STORAGE.URLS.SET_VAR}] request from the [${username}] user for [relativePath=${relativePath}] and [varName=${varName}]`); // validating relativePath if (!relativePath) { logger.log.error(`The [relativePath] is not provided for [${restUtls.STORAGE.URLS.SET_VAR}] URL. Requested by [${username}]`); security.sendError(res, 'The [relativePath] is not provided'); return; } // validating varName if (!varName) { logger.log.error(`The [varName] is not provided for [${restUtls.STORAGE.URLS.SET_VAR}] URL. Requested by [${username}]`); security.sendError(res, 'The [varName] is not provided'); return; } // validating newValue if (!newValue) { logger.log.error(`The [newValue] is not provided for [${restUtls.STORAGE.URLS.SET_VAR}] URL. Requested by [${username}]`); security.sendError(res, 'The [newValue] is not provided'); return; } return storageUtils.setVar(relativePath, varName, newValue) .then(_ => { res.send({}); logger.log.debug(`Updated a [varName=${varName}] in the [relativePath=${relativePath}] JavaScript file by [username=${username}]`); }) .catch( (err) => { logger.log.error(`Failed to update a [varName=${varName}] in the [relativePath=${relativePath}] JavaScript file by [username=${username}]. Reason: [${ utils.formatErr(err)}]`); security.sendError(res, 'Failed to update a JavaScript var'); });});//////////////////////////////////////////////////////////////////////////////// md//////////////////////////////////////////////////////////////////////////////function md2Expressions(md) { const opRegex = new RegExp(`([${nexlEngine.OPERATIONS_ESCAPED}])`, 'g'); const result = []; md.forEach(item => { if (item.type === 'Function') { const args = item.args.length < 1 ? '' : `${item.args.join('|')}|`; result.push(`\${${args}${item.name}()}`); return; } result.push(`\${${item.name}}`); if (item.type === 'Object' && item.keys) { item.keys.forEach(key => { const keyEscaped = key.replace(opRegex, '\\$1'); result.push(`\${${item.name}.${keyEscaped}}`); }); } }); return result;}router.post(restUtls.STORAGE.URLS.METADATA, function (req, res) { const username = security.getLoggedInUsername(req); const relativePath = req.body['relativePath'] || path.sep; logger.log.log('verbose', `Got a [${restUtls.STORAGE.URLS.METADATA}] request from the [${username}] user for [relativePath=${relativePath}]`); if (!security.hasReadPermission(username)) { logger.log.error('The [%s] user doesn\'t have read permissions to load metadata', username); security.sendError(res, 'No read permissions'); return; } const fullPath = path.join(confMgmt.getNexlStorageDir(), relativePath); if (!utils.isFilePathValid(fullPath)) { logger.log.error(`The [relativePath=${relativePath}] is unacceptable, requested by [user=${username}]`); security.sendError(res, 'Unacceptable path'); return; } const nexlSource = { fileEncoding: confConsts.ENCODING_UTF8, basePath: confMgmt.getNexlStorageDir(), filePath: fullPath, fileContent: req.body[diConsts.FILE_BODY] }; // resolving metadata for [relativePath] let md; try { md = nexlEngine.parseMD(nexlSource); } catch (e) { logger.log.error(`Failed to parse a [relativePath=${relativePath}] file. Requested by [user=${username}]. [reason=${utils.formatErr(e)}]`); security.sendError(res, 'Failed to parse a file'); return; } res.send({ md: md2Expressions(md) });});//////////////////////////////////////////////////////////////////////////////// reindex files//////////////////////////////////////////////////////////////////////////////router.post(restUtls.STORAGE.URLS.REINDEX_FILES, function (req, res) { const username = security.getLoggedInUsername(req); logger.log.log('verbose', `Got a [${restUtls.STORAGE.URLS.REINDEX_FILES}] request`); if (!security.isAdmin(username)) { logger.log.error('Cannot reindex file because the [%s] user doesn\'t have admin permissions', username); security.sendError(res, 'admin permissions required'); return; } storageUtils.cacheStorageFiles() .then(result => res.send({})) .catch(err => { logger.log.error(`Failed to reindex files. Reason: [${utils.formatErr(err)}]`); security.sendError(res, 'Failed to reindex'); });});//////////////////////////////////////////////////////////////////////////////// find file//////////////////////////////////////////////////////////////////////////////router.post(restUtls.STORAGE.URLS.FILE_IN_FILES, function (req, res) { const username = security.getLoggedInUsername(req); const relativePath = req.body[di.RELATIVE_PATH]; const text = req.body[di.TEXT]; const matchCase = req.body[di.MATCH_CASE]; const isRegex = req.body[di.IS_REGEX]; logger.log.log('verbose', `Got a [${restUtls.STORAGE.URLS.FILE_IN_FILES}] request from the [${username}] user for [relativePath=${relativePath}] [text=${text}] [matchCase=${matchCase}] [isRegex=${isRegex}]`); // todo : automate validations !!! // todo : automate validations !!! // todo : automate validations !!! // validating relativePath if (!j79.isString(relativePath) || relativePath.text < 1) { logger.log.error(`The [${di.RELATIVE_PATH}] must be a valid non empty string`); security.sendError(res, `The [${di.RELATIVE_PATH}] must be a valid non empty string`); return; } // validating text if (!j79.isString(text) || text.length < 1) { logger.log.error('Empty text is not allowed'); security.sendError(res, 'Empty text is not allowed'); return; } // validating matchCase if (!j79.isBool(matchCase)) { logger.log.error(`The [${di.MATCH_CASE}] must be of a boolean type`); security.sendError(res, `The [${di.MATCH_CASE}] must be of a boolean type`); return; } // validating isRegex if (!j79.isBool(matchCase)) { logger.log.error(`The [${di.IS_REGEX}] must be of a boolean type`); security.sendError(res, `The [${di.IS_REGEX}] must be of a boolean type`); return; } if (!security.hasReadPermission(username)) { logger.log.error('The [%s] user doesn\'t have write permissions to search text in files', username); security.sendError(res, 'No read permissions'); return; } const data = {}; data[di.RELATIVE_PATH] = relativePath; data[di.TEXT] = text; data[di.MATCH_CASE] = matchCase; data[di.IS_REGEX] = isRegex; storageUtils.findInFiles(data).then( result => res.send({result: result}) ).catch(err => { logger.log.error(`Find in files failed. Reason: [${utils.formatErr(err)}]`); security.sendError(res, 'Find in files failed'); });});//////////////////////////////////////////////////////////////////////////////// move item//////////////////////////////////////////////////////////////////////////////router.post(restUtls.STORAGE.URLS.MOVE, function (req, res) { const username = security.getLoggedInUsername(req); const source = req.body['source']; const dest = req.body['dest']; logger.log.log('verbose', `Got a [${restUtls.STORAGE.URLS.MOVE}] request from the [${username}] user for [source=${source}] [dest=${dest}]`); // validating ( must not empty string ) if (!j79.isString(source) || source.length < 1) { logger.log.error('Invalid source item'); security.sendError(res, 'Invalid source item'); return; } // validating if (!j79.isString(dest)) { logger.log.error('Invalid dest item'); security.sendError(res, 'Invalid dest item'); return; } if (!security.hasWritePermission(username)) { logger.log.error('The [%s] user doesn\'t have write permissions to move items', username); security.sendError(res, 'No write permissions'); return; } return storageUtils.move(source, dest) .then(_ => { res.send({}); logger.log.log('verbose', `Moved a [${source}] item to [${dest}] by [${username}] user`); }) .catch( (err) => { logger.log.error('Failed to move a [%s] file to [%s] for [%s] user. Reason : [%s]', source, dest, username, utils.formatErr(err)); security.sendError(res, 'Failed to move item'); });});//////////////////////////////////////////////////////////////////////////////// rename item//////////////////////////////////////////////////////////////////////////////router.post(restUtls.STORAGE.URLS.RENAME, function (req, res) { const username = security.getLoggedInUsername(req); const relativePath = req.body['relativePath']; const newRelativePath = req.body['newRelativePath']; logger.log.log('verbose', `Got a [${restUtls.STORAGE.URLS.RENAME}] request from the [${username}] user for [relativePath=${relativePath}] [newRelativePath=${newRelativePath}]`); // validating ( must not empty string ) if (!j79.isString(relativePath) || relativePath.length < 1) { logger.log.error('Invalid relativePath'); security.sendError(res, 'Invalid relativePath'); return; } // validating ( must not empty string ) if (!j79.isString(newRelativePath) || newRelativePath.length < 1) { logger.log.error('Invalid newRelativePath'); security.sendError(res, 'Invalid newRelativePath'); return; } if (!security.hasWritePermission(username)) { logger.log.error('The [%s] user doesn\'t have write permissions to rename items', username); security.sendError(res, 'No write permissions'); return; } return storageUtils.rename(relativePath, newRelativePath) .then(_ => { res.send({}); logger.log.log('verbose', `Renamed a [${relativePath}] item to [${newRelativePath}] by [${username}] user`); }) .catch( (err) => { logger.log.error('Failed to rename a [%s] file to [%s] for [%s] user. Reason : [%s]', relativePath, newRelativePath, username, utils.formatErr(err)); security.sendError(res, 'Failed to rename item'); });});//////////////////////////////////////////////////////////////////////////////// delete item//////////////////////////////////////////////////////////////////////////////router.post(restUtls.STORAGE.URLS.DELETE, function (req, res) { const username = security.getLoggedInUsername(req); const relativePath = req.body['relativePath']; logger.log.log('verbose', `Got a [${restUtls.STORAGE.URLS.DELETE}] request from the [${username}] user for [relativePath=${relativePath}]`); // validating ( must not empty string ) if (!j79.isString(relativePath) || relativePath.length < 1) { logger.log.error('Invalid relativePath'); security.sendError(res, 'Invalid relativePath'); return; } if (!security.hasWritePermission(username)) { logger.log.error('The [%s] user doesn\'t have write permissions to delete items', username); security.sendError(res, 'No write permissions'); return; } return storageUtils.deleteItem(relativePath) .then(_ => { res.send({}); logger.log.log('verbose', `Deleted a [${relativePath}] item by [${username}] user`); }) .catch( (err) => { logger.log.error('Failed to delete a [%s] item for [%s] user. Reason : [%s]', relativePath, username, utils.formatErr(err)); security.sendError(res, 'Failed to delete item'); });});//////////////////////////////////////////////////////////////////////////////// make-dir//////////////////////////////////////////////////////////////////////////////router.post(restUtls.STORAGE.URLS.MAKE_DIR, function (req, res, next) { const username = security.getLoggedInUsername(req); const relativePath = req.body['relativePath']; logger.log.log('verbose', `Got a [${restUtls.STORAGE.URLS.MAKE_DIR}] request from the [${username}] user for [relativePath=${relativePath}]`); // validating ( must not empty string ) if (!j79.isString(relativePath) || relativePath.length < 1) { logger.log.error('Invalid relativePath'); security.sendError(res, 'Invalid relativePath'); return; } if (!security.hasWritePermission(username)) { logger.log.error('The [%s] user doesn\'t have write permissions to create new directory', username); security.sendError(res, 'No write permissions'); return; } return storageUtils.mkdir(relativePath) .then(_ => { res.send({}); logger.log.log('verbose', `Created a [${relativePath}] directory by [${username}] user`); }) .catch( (err) => { logger.log.error('Failed to create a [%s] directory for [%s] user. Reason : [%s]', relativePath, username, utils.formatErr(err)); security.sendError(res, 'Failed to create a directory'); });});//////////////////////////////////////////////////////////////////////////////// get tree items hierarchy//////////////////////////////////////////////////////////////////////////////router.post(restUtls.STORAGE.URLS.TREE_ITEMS, function (req, res, next) { const username = security.getLoggedInUsername(req); logger.log.debug(`Getting tree items hierarchy by [${username}] user`); if (!security.hasReadPermission(username)) { logger.log.error('The [%s] user doesn\'t have read permissions to get tree items hierarchy', username); security.sendError(res, 'No read permissions'); return; } res.send(storageUtils.getTreeItems());});//////////////////////////////////////////////////////////////////////////////// list-dirs, list-files, list-files-and-dirs//////////////////////////////////////////////////////////////////////////////router.post(restUtls.STORAGE.URLS.LIST_FILES, function (req, res, next) { const username = security.getLoggedInUsername(req); const relativePath = req.body[di.RELATIVE_PATH]; logger.log.log('verbose', `Got a [${restUtls.STORAGE.URLS.LIST_FILES}] request from the [${username}] user for [relativePath=${relativePath}]`); if (!security.hasReadPermission(username)) { logger.log.error('The [%s] user doesn\'t have read permissions to get tree items hierarchy', username); security.sendError(res, 'No read permissions'); return; } res.send(storageUtils.listFiles(relativePath));});router.post(restUtls.STORAGE.URLS.LIST_DIRS, function (req, res, next) { const username = security.getLoggedInUsername(req); const relativePath = req.body[di.RELATIVE_PATH]; logger.log.log('verbose', `Got a [${restUtls.STORAGE.URLS.LIST_DIRS}] request from the [${username}] user for [relativePath=${relativePath}]`); if (!security.hasReadPermission(username)) { logger.log.error('The [%s] user doesn\'t have read permissions to get tree items hierarchy', username); security.sendError(res, 'No read permissions'); return; } // BUG: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')// res.send(storageUtils.listDirs(relativePath));// FIXED: });router.post(restUtls.STORAGE.URLS.LIST_FILES_AND_DIRS, function (req, res, next) { const username = security.getLoggedInUsername(req); const relativePath = req.body[di.RELATIVE_PATH]; logger.log.log('verbose', `Got a [${restUtls.STORAGE.URLS.LIST_FILES_AND_DIRS}] request from the [${username}] user for [relativePath=${relativePath}]`); if (!security.hasReadPermission(username)) { logger.log.error('The [%s] user doesn\'t have read permissions to get tree items hierarchy', username); security.sendError(res, 'No read permissions'); return; } res.send(storageUtils.listDirsAndFiles(relativePath));});//////////////////////////////////////////////////////////////////////////////// load file from storage//////////////////////////////////////////////////////////////////////////////router.post(restUtls.STORAGE.URLS.LOAD_FILE_FROM_STORAGE, function (req, res, next) { const username = security.getLoggedInUsername(req); const relativePath = req.body['relativePath'] || path.sep; logger.log.log('verbose', `Got a [${restUtls.STORAGE.URLS.LOAD_FILE_FROM_STORAGE}] request from the [${username}] user for [relativePath=${relativePath}]`); if (!security.hasReadPermission(username)) { logger.log.error('The [%s] user doesn\'t have read permissions to load JavaScript files', username); security.sendError(res, 'No read permissions'); return; } const currentTime = new Date().getTime(); return storageUtils.loadFileFromStorage(relativePath) .then(data => { const body = {}; body[di.FILE_BODY] = data; body[di.FILE_LOAD_TIME] = currentTime; res.send(body); logger.log.debug(`Loaded content of [${relativePath}] JavaScript file by [${username}] user`); }) .catch( (err) => { logger.log.error('Failed to load a [%s] nexl JavaScript file for [%s] user. Reason : [%s]', relativePath, username, utils.formatErr(err)); security.sendError(res, 'Failed to load file'); });});//////////////////////////////////////////////////////////////////////////////// save file to storage//////////////////////////////////////////////////////////////////////////////router.post(restUtls.STORAGE.URLS.SAVE_FILE_TO_STORAGE, function (req, res, next) { const username = security.getLoggedInUsername(req); const relativePath = req.body['relativePath']; const content = req.body['content']; const fileLoadTime = req.body[di.FILE_LOAD_TIME]; logger.log.log('verbose', `Got a [${restUtls.STORAGE.URLS.SAVE_FILE_TO_STORAGE}] request from the [${username}] user for [relativePath=${relativePath}] [content=***not logging***] [fileLoadTime=${fileLoadTime}]`); // validating ( must not empty string ) if (!j79.isString(relativePath) || relativePath.length < 1) { logger.log.error('Invalid relativePath'); security.sendError(res, 'Invalid relativePath'); return; } if (!security.hasWritePermission(username)) { logger.log.error('The [%s] user doesn\'t have write permissions to save nexl JavaScript file', username); security.sendError(res, 'No write permissions'); return; } return storageUtils.saveFileToStorage(relativePath, content, fileLoadTime) .then(result => { res.send(result); logger.log.log('verbose', `The [${relativePath}] file is saved by [${username}] user`); }) .catch( (err) => { logger.log.error('Failed to save a [%s] nexl JavaScript file for [%s] user. Reason : [%s]', relativePath, username, utils.formatErr(err)); security.sendError(res, 'Failed to save file'); });});//////////////////////////////////////////////////////////////////////////////// undeclared routes//////////////////////////////////////////////////////////////////////////////router.post('/*', function (req, res) { logger.log.error(`Unknown route [${req.baseUrl}]`); security.sendError(res, `Unknown route`, 404);});router.get('/*', function (req, res) { logger.log.error(`Unknown route [${req.baseUrl}]`); security.sendError(res, `Unknown route`, 404);});// --------------------------------------------------------------------------------module.exports = router;// -------------------------------------------------------------------------------- |