mirror of
https://github.com/TryGhost/Ghost.git
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c9fbf01521
- add NODE_LEVEL to print errors while running tests - try/catch while parsing translations file - run setup/teardown as promise or callback - some general error improvements
448 lines
15 KiB
JavaScript
448 lines
15 KiB
JavaScript
// # Errors
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/*jslint regexp: true */
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var _ = require('lodash'),
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chalk = require('chalk'),
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path = require('path'),
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Promise = require('bluebird'),
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hbs = require('express-hbs'),
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NotFoundError = require('./not-found-error'),
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BadRequestError = require('./bad-request-error'),
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InternalServerError = require('./internal-server-error'),
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NoPermissionError = require('./no-permission-error'),
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MethodNotAllowedError = require('./method-not-allowed-error'),
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RequestEntityTooLargeError = require('./request-too-large-error'),
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UnauthorizedError = require('./unauthorized-error'),
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ValidationError = require('./validation-error'),
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UnsupportedMediaTypeError = require('./unsupported-media-type-error'),
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EmailError = require('./email-error'),
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DataImportError = require('./data-import-error'),
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TooManyRequestsError = require('./too-many-requests-error'),
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TokenRevocationError = require('./token-revocation-error'),
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i18n = require('../i18n'),
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config,
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errors,
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// Paths for views
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userErrorTemplateExists = false;
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// Shim right now to deal with circular dependencies.
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// @TODO(hswolff): remove circular dependency and lazy require.
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function getConfigModule() {
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if (!config) {
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config = require('../config');
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}
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return config;
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}
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function isValidErrorStatus(status) {
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return _.isNumber(status) && status >= 400 && status < 600;
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}
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function getStatusCode(error) {
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if (error.statusCode) {
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return error.statusCode;
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}
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if (error.status && isValidErrorStatus(error.status)) {
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error.statusCode = error.status;
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return error.statusCode;
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}
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if (error.code && isValidErrorStatus(error.code)) {
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error.statusCode = error.code;
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return error.statusCode;
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}
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error.statusCode = 500;
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return error.statusCode;
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}
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/**
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* Basic error handling helpers
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*/
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errors = {
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updateActiveTheme: function (activeTheme) {
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userErrorTemplateExists = getConfigModule().paths.availableThemes[activeTheme].hasOwnProperty('error.hbs');
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},
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throwError: function (err) {
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if (!err) {
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err = new Error(i18n.t('errors.errors.anErrorOccurred'));
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}
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if (_.isString(err)) {
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throw new Error(err);
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}
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throw err;
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},
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// ## Reject Error
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// Used to pass through promise errors when we want to handle them at a later time
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rejectError: function (err) {
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return Promise.reject(err);
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},
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logComponentInfo: function (component, info) {
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if ((process.env.NODE_ENV === 'development' ||
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process.env.NODE_ENV === 'staging' ||
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process.env.NODE_ENV === 'production')) {
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console.info(chalk.cyan(component + ':', info));
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}
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},
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logComponentWarn: function (component, warning) {
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if ((process.env.NODE_ENV === 'development' ||
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process.env.NODE_ENV === 'staging' ||
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process.env.NODE_ENV === 'production')) {
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console.info(chalk.yellow(component + ':', warning));
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}
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},
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logWarn: function (warn, context, help) {
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if ((process.env.NODE_ENV === 'development' ||
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process.env.NODE_ENV === 'staging' ||
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process.env.NODE_ENV === 'production')) {
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warn = warn || i18n.t('errors.errors.noMessageSupplied');
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var msgs = [chalk.yellow(i18n.t('errors.errors.warning'), warn), '\n'];
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if (context) {
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msgs.push(chalk.white(context), '\n');
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}
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if (help) {
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msgs.push(chalk.green(help));
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}
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// add a new line
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msgs.push('\n');
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console.log.apply(console, msgs);
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}
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},
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logError: function (err, context, help) {
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var self = this,
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origArgs = _.toArray(arguments).slice(1),
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stack,
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msgs;
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if (_.isArray(err)) {
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_.each(err, function (e) {
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var newArgs = [e].concat(origArgs);
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errors.logError.apply(self, newArgs);
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});
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return;
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}
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stack = err ? err.stack : null;
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if (!_.isString(err)) {
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if (_.isObject(err) && _.isString(err.message)) {
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err = err.message;
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} else {
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err = i18n.t('errors.errors.unknownErrorOccurred');
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}
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}
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// Overwrite error to provide information that this is probably a permission problem
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// TODO: https://github.com/TryGhost/Ghost/issues/3687
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if (err.indexOf('SQLITE_READONLY') !== -1) {
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context = i18n.t('errors.errors.databaseIsReadOnly');
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help = i18n.t('errors.errors.checkDatabase');
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}
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// TODO: Logging framework hookup
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// Eventually we'll have better logging which will know about envs
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// you can use DEBUG=true when running tests and need error stdout
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if ((process.env.NODE_LEVEL === 'DEBUG' ||
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process.env.NODE_ENV === 'development' ||
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process.env.NODE_ENV === 'staging' ||
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process.env.NODE_ENV === 'production')) {
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msgs = [chalk.red(i18n.t('errors.errors.error'), err), '\n'];
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if (context) {
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msgs.push(chalk.white(context), '\n');
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}
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if (help) {
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msgs.push(chalk.green(help));
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}
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// add a new line
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msgs.push('\n');
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if (stack) {
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msgs.push(stack, '\n');
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}
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console.error.apply(console, msgs);
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}
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},
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logErrorAndExit: function (err, context, help) {
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this.logError(err, context, help);
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// Exit with 0 to prevent npm errors as we have our own
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process.exit(0);
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},
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logAndThrowError: function (err, context, help) {
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this.logError(err, context, help);
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this.throwError(err, context, help);
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},
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logAndRejectError: function (err, context, help) {
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this.logError(err, context, help);
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return this.rejectError(err, context, help);
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},
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logErrorWithRedirect: function (msg, context, help, redirectTo, req, res) {
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/*jshint unused:false*/
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var self = this;
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return function () {
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self.logError(msg, context, help);
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if (_.isFunction(res.redirect)) {
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res.redirect(redirectTo);
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}
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};
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},
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/**
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* ### Format HTTP Errors
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* Converts the error response from the API into a format which can be returned over HTTP
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*
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* @private
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* @param {Array} error
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* @return {{errors: Array, statusCode: number}}
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*/
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formatHttpErrors: function formatHttpErrors(error) {
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var statusCode = 500,
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errors = [];
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if (!_.isArray(error)) {
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error = [].concat(error);
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}
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_.each(error, function each(errorItem) {
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var errorContent = {};
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// TODO: add logic to set the correct status code
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statusCode = getStatusCode(errorItem);
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errorContent.message = _.isString(errorItem) ? errorItem :
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(_.isObject(errorItem) ? errorItem.message : i18n.t('errors.errors.unknownApiError'));
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errorContent.errorType = errorItem.errorType || 'InternalServerError';
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errors.push(errorContent);
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});
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return {errors: errors, statusCode: statusCode};
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},
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formatAndRejectAPIError: function (error, permsMessage) {
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if (!error) {
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return this.rejectError(
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new this.NoPermissionError(permsMessage || i18n.t('errors.errors.notEnoughPermission'))
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);
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}
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if (_.isString(error)) {
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return this.rejectError(new this.NoPermissionError(error));
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}
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if (error.errorType) {
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return this.rejectError(error);
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}
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// handle database errors
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if (error.code && (error.errno || error.detail)) {
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error.db_error_code = error.code;
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error.errorType = 'DatabaseError';
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error.statusCode = 500;
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return this.rejectError(error);
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}
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return this.rejectError(new this.InternalServerError(error));
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},
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handleAPIError: function errorHandler(err, req, res, next) {
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/*jshint unused:false */
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var httpErrors = this.formatHttpErrors(err);
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this.logError(err);
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// Send a properly formatted HTTP response containing the errors
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res.status(httpErrors.statusCode).json({errors: httpErrors.errors});
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},
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renderErrorPage: function (statusCode, err, req, res, next) {
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/*jshint unused:false*/
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var self = this,
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defaultErrorTemplatePath = path.resolve(getConfigModule().paths.adminViews, 'user-error.hbs');
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function parseStack(stack) {
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if (!_.isString(stack)) {
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return stack;
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}
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// TODO: split out line numbers
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var stackRegex = /\s*at\s*(\w+)?\s*\(([^\)]+)\)\s*/i;
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return (
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stack
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.split(/[\r\n]+/)
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.slice(1)
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.map(function (line) {
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var parts = line.match(stackRegex);
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if (!parts) {
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return null;
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}
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return {
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function: parts[1],
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at: parts[2]
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};
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})
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.filter(function (line) {
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return !!line;
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})
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);
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}
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// Render the error!
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function renderErrorInt(errorView) {
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var stack = null;
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if (statusCode !== 404 && process.env.NODE_ENV !== 'production' && err.stack) {
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stack = parseStack(err.stack);
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}
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res.status(statusCode).render((errorView || 'error'), {
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message: err.message || err,
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// We have to use code here, as it's the variable passed to the template
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// And error templates can be customised... therefore this constitutes API
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// In future I recommend we make this be used for a combo-version of statusCode & errorCode
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code: statusCode,
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// Adding this as being distinctly, the status code, as opposed to any other code see #6526
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statusCode: statusCode,
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stack: stack
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}, function (templateErr, html) {
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if (!templateErr) {
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return res.status(statusCode).send(html);
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}
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// There was an error trying to render the error page, output the error
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self.logError(templateErr, i18n.t('errors.errors.errorWhilstRenderingError'), i18n.t('errors.errors.errorTemplateHasError'));
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// And then try to explain things to the user...
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// Cheat and output the error using handlebars escapeExpression
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return res.status(500).send(
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'<h1>' + i18n.t('errors.errors.oopsErrorTemplateHasError') + '</h1>' +
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'<p>' + i18n.t('errors.errors.encounteredError') + '</p>' +
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'<pre>' + hbs.handlebars.Utils.escapeExpression(templateErr.message || templateErr) + '</pre>' +
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'<br ><p>' + i18n.t('errors.errors.whilstTryingToRender') + '</p>' +
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statusCode + ' ' + '<pre>' + hbs.handlebars.Utils.escapeExpression(err.message || err) + '</pre>'
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);
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});
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}
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if (statusCode >= 500) {
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this.logError(err, i18n.t('errors.errors.renderingErrorPage'), i18n.t('errors.errors.caughtProcessingError'));
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}
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// Are we admin? If so, don't worry about the user template
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if ((res.isAdmin && req.user && req.user.id) || userErrorTemplateExists === true) {
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return renderErrorInt();
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}
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// We're not admin and the template doesn't exist. Render the default.
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return renderErrorInt(defaultErrorTemplatePath);
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},
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error404: function (req, res, next) {
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var message = i18n.t('errors.errors.pageNotFound');
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// do not cache 404 error
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res.set({'Cache-Control': 'no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0'});
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if (req.method === 'GET') {
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this.renderErrorPage(404, message, req, res, next);
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} else {
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res.status(404).send(message);
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}
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},
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error500: function (err, req, res, next) {
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var statusCode = getStatusCode(err),
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returnErrors = [];
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// 500 errors should never be cached
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res.set({'Cache-Control': 'no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0'});
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if (statusCode === 404) {
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return this.error404(req, res, next);
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}
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if (req.method === 'GET') {
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if (!err || !(err instanceof Error)) {
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next();
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}
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errors.renderErrorPage(statusCode, err, req, res, next);
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} else {
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if (!_.isArray(err)) {
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err = [].concat(err);
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}
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_.each(err, function (errorItem) {
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var errorContent = {};
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errorContent.message = _.isString(errorItem) ? errorItem :
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(_.isObject(errorItem) ? errorItem.message : i18n.t('errors.errors.unknownError'));
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errorContent.errorType = errorItem.errorType || 'InternalServerError';
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returnErrors.push(errorContent);
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});
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res.status(statusCode).json({errors: returnErrors});
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}
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}
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};
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// Ensure our 'this' context for methods and preserve method arity by
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// using Function#bind for expressjs
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_.each([
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'logWarn',
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'logComponentInfo',
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'logComponentWarn',
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'rejectError',
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'throwError',
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'logError',
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'logAndThrowError',
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'logAndRejectError',
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'logErrorAndExit',
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'logErrorWithRedirect',
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'handleAPIError',
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'formatAndRejectAPIError',
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'formatHttpErrors',
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'renderErrorPage',
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'error404',
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'error500'
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], function (funcName) {
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errors[funcName] = errors[funcName].bind(errors);
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});
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module.exports = errors;
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module.exports.NotFoundError = NotFoundError;
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module.exports.BadRequestError = BadRequestError;
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module.exports.InternalServerError = InternalServerError;
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module.exports.NoPermissionError = NoPermissionError;
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module.exports.UnauthorizedError = UnauthorizedError;
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module.exports.ValidationError = ValidationError;
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module.exports.RequestEntityTooLargeError = RequestEntityTooLargeError;
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module.exports.UnsupportedMediaTypeError = UnsupportedMediaTypeError;
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module.exports.EmailError = EmailError;
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module.exports.DataImportError = DataImportError;
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module.exports.MethodNotAllowedError = MethodNotAllowedError;
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module.exports.TooManyRequestsError = TooManyRequestsError;
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module.exports.TokenRevocationError = TokenRevocationError;
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