Ghost/core/server/config/index.js
Hannah Wolfe 1c85650108 Move db connection out of config
refs #5047

- database connections are not configuration
2016-02-12 13:56:23 +00:00

431 lines
15 KiB
JavaScript

// # Config
// General entry point for all configuration data
var path = require('path'),
Promise = require('bluebird'),
chalk = require('chalk'),
crypto = require('crypto'),
fs = require('fs'),
url = require('url'),
_ = require('lodash'),
validator = require('validator'),
readDirectory = require('../utils/read-directory'),
readThemes = require('../utils/read-themes'),
errors = require('../errors'),
configUrl = require('./url'),
packageInfo = require('../../../package.json'),
i18n = require('../i18n'),
appRoot = path.resolve(__dirname, '../../../'),
corePath = path.resolve(appRoot, 'core/'),
testingEnvs = ['testing', 'testing-mysql', 'testing-pg'],
defaultConfig = {};
function ConfigManager(config) {
/**
* Our internal true representation of our current config object.
* @private
* @type {Object}
*/
this._config = {};
// Allow other modules to be externally accessible.
this.urlJoin = configUrl.urlJoin;
this.urlFor = configUrl.urlFor;
this.urlPathForPost = configUrl.urlPathForPost;
this.apiUrl = configUrl.apiUrl;
this.getBaseUrl = configUrl.getBaseUrl;
// If we're given an initial config object then we can set it.
if (config && _.isObject(config)) {
this.set(config);
}
}
// Are we using sockets? Custom socket or the default?
ConfigManager.prototype.getSocket = function () {
var socketConfig,
values = {
path: path.join(this._config.paths.contentPath, process.env.NODE_ENV + '.socket'),
permissions: '660'
};
if (this._config.server.hasOwnProperty('socket')) {
socketConfig = this._config.server.socket;
if (_.isString(socketConfig)) {
values.path = socketConfig;
return values;
}
if (_.isObject(socketConfig)) {
values.path = socketConfig.path || values.path;
values.permissions = socketConfig.permissions || values.permissions;
return values;
}
}
return false;
};
ConfigManager.prototype.init = function (rawConfig) {
var self = this;
// Cache the config.js object's environment
// object so we can later refer to it.
// Note: this is not the entirety of config.js,
// just the object appropriate for this NODE_ENV
self.set(rawConfig);
return Promise.all([readThemes(self._config.paths.themePath), readDirectory(self._config.paths.appPath)]).then(function (paths) {
self._config.paths.availableThemes = paths[0];
self._config.paths.availableApps = paths[1];
return self._config;
});
};
/**
* Allows you to set the config object.
* @param {Object} config Only accepts an object at the moment.
*/
ConfigManager.prototype.set = function (config) {
var localPath = '',
defaultStorage = 'local-file-store',
contentPath,
activeStorage,
storagePath,
subdir,
assetHash;
// Merge passed in config object onto our existing config object.
// We're using merge here as it doesn't assign `undefined` properties
// onto our cached config object. This allows us to only update our
// local copy with properties that have been explicitly set.
_.merge(this._config, config);
// Special case for the them.navigation JSON object, which should be overridden not merged
if (config && config.theme && config.theme.navigation) {
this._config.theme.navigation = config.theme.navigation;
}
// Protect against accessing a non-existant object.
// This ensures there's always at least a paths object
// because it's referenced in multiple places.
this._config.paths = this._config.paths || {};
// Parse local path location
if (this._config.url) {
localPath = url.parse(this._config.url).path;
// Remove trailing slash
if (localPath !== '/') {
localPath = localPath.replace(/\/$/, '');
}
}
subdir = localPath === '/' ? '' : localPath;
if (!_.isEmpty(subdir)) {
this._config.slugs.protected.push(subdir.split('/').pop());
}
// Allow contentPath to be over-written by passed in config object
// Otherwise default to default content path location
contentPath = this._config.paths.contentPath || path.resolve(appRoot, 'content');
assetHash = this._config.assetHash ||
(crypto.createHash('md5').update(packageInfo.version + Date.now()).digest('hex')).substring(0, 10);
// Protect against accessing a non-existent object.
// This ensures there's always at least a storage object
// because it's referenced in multiple places.
this._config.storage = this._config.storage || {};
activeStorage = this._config.storage.active || defaultStorage;
if (activeStorage === defaultStorage) {
storagePath = path.join(corePath, '/server/storage/');
} else {
storagePath = path.join(contentPath, 'storage');
}
_.merge(this._config, {
ghostVersion: packageInfo.version,
paths: {
appRoot: appRoot,
subdir: subdir,
config: this._config.paths.config || path.join(appRoot, 'config.js'),
configExample: path.join(appRoot, 'config.example.js'),
corePath: corePath,
storage: path.join(storagePath, activeStorage),
contentPath: contentPath,
themePath: path.resolve(contentPath, 'themes'),
appPath: path.resolve(contentPath, 'apps'),
imagesPath: path.resolve(contentPath, 'images'),
imagesRelPath: 'content/images',
adminViews: path.join(corePath, '/server/views/'),
helperTemplates: path.join(corePath, '/server/helpers/tpl/'),
exportPath: path.join(corePath, '/server/data/export/'),
lang: path.join(corePath, '/shared/lang/'),
availableThemes: this._config.paths.availableThemes || {},
availableApps: this._config.paths.availableApps || {},
clientAssets: path.join(corePath, '/built/assets/')
},
storage: {
active: activeStorage
},
theme: {
// normalise the URL by removing any trailing slash
url: this._config.url ? this._config.url.replace(/\/$/, '') : ''
},
routeKeywords: {
tag: 'tag',
author: 'author',
page: 'page',
preview: 'p',
private: 'private'
},
slugs: {
// Used by generateSlug to generate slugs for posts, tags, users, ..
// reserved slugs are reserved but can be extended/removed by apps
// protected slugs cannot be changed or removed
reserved: ['admin', 'app', 'apps', 'archive', 'archives', 'categories',
'category', 'dashboard', 'feed', 'ghost-admin', 'login', 'logout',
'page', 'pages', 'post', 'posts', 'public', 'register', 'setup',
'signin', 'signout', 'signup', 'user', 'users', 'wp-admin', 'wp-login'],
protected: ['ghost', 'rss']
},
uploads: {
// Used by the upload API to limit uploads to images
extensions: ['.jpg', '.jpeg', '.gif', '.png', '.svg', '.svgz'],
contentTypes: ['image/jpeg', 'image/png', 'image/gif', 'image/svg+xml']
},
deprecatedItems: ['updateCheck', 'mail.fromaddress'],
// create a hash for cache busting assets
assetHash: assetHash
});
// Also pass config object to
// configUrl object to maintain
// clean dependency tree
configUrl.setConfig(this._config);
// For now we're going to copy the current state of this._config
// so it's directly accessible on the instance.
// @TODO: perhaps not do this? Put access of the config object behind
// a function?
_.extend(this, this._config);
};
/**
* Allows you to read the config object.
* @return {Object} The config object.
*/
ConfigManager.prototype.get = function () {
return this._config;
};
ConfigManager.prototype.load = function (configFilePath) {
var self = this;
self._config.paths.config = process.env.GHOST_CONFIG || configFilePath || self._config.paths.config;
/* Check for config file and copy from config.example.js
if one doesn't exist. After that, start the server. */
return new Promise(function (resolve, reject) {
fs.stat(self._config.paths.config, function (err) {
var exists = (err) ? false : true,
pendingConfig;
if (!exists) {
pendingConfig = self.writeFile();
}
Promise.resolve(pendingConfig).then(function () {
return self.validate();
}).then(function (rawConfig) {
resolve(self.init(rawConfig));
}).catch(reject);
});
});
};
/* Check for config file and copy from config.example.js
if one doesn't exist. After that, start the server. */
ConfigManager.prototype.writeFile = function () {
var configPath = this._config.paths.config,
configExamplePath = this._config.paths.configExample;
return new Promise(function (resolve, reject) {
fs.stat(configExamplePath, function checkTemplate(err) {
var templateExists = (err) ? false : true,
read,
write,
error;
if (!templateExists) {
error = new Error(i18n.t('errors.config.couldNotLocateConfigFile.error'));
error.context = appRoot;
error.help = i18n.t('errors.config.couldNotLocateConfigFile.help');
return reject(error);
}
// Copy config.example.js => config.js
read = fs.createReadStream(configExamplePath);
read.on('error', function (err) {
errors.logError(
new Error(i18n.t('errors.config.couldNotOpenForReading.error', {file: 'config.example.js'})),
appRoot,
i18n.t('errors.config.couldNotOpenForReading.help'));
reject(err);
});
write = fs.createWriteStream(configPath);
write.on('error', function (err) {
errors.logError(
new Error(i18n.t('errors.config.couldNotOpenForWriting.error', {file: 'config.js'})),
appRoot,
i18n.t('errors.config.couldNotOpenForWriting.help'));
reject(err);
});
write.on('finish', resolve);
read.pipe(write);
});
});
};
/**
* Read config.js file from file system using node's require
* @param {String} envVal Which environment we're in.
* @return {Object} The config object.
*/
ConfigManager.prototype.readFile = function (envVal) {
return require(this._config.paths.config)[envVal];
};
/**
* Validates the config object has everything we want and in the form we want.
* @return {Promise.<Object>} Returns a promise that resolves to the config object.
*/
ConfigManager.prototype.validate = function () {
var envVal = process.env.NODE_ENV || undefined,
hasHostAndPort,
hasSocket,
config,
parsedUrl;
try {
config = this.readFile(envVal);
}
catch (e) {
return Promise.reject(e);
}
// Check that our url is valid
if (!validator.isURL(config.url, {protocols: ['http', 'https'], require_protocol: true})) {
errors.logError(
new Error(i18n.t('errors.config.invalidUrlInConfig.description'),
config.url,
i18n.t('errors.config.invalidUrlInConfig.help')));
return Promise.reject(new Error(i18n.t('errors.config.invalidUrlInConfig.error')));
}
parsedUrl = url.parse(config.url || 'invalid', false, true);
if (/\/ghost(\/|$)/.test(parsedUrl.pathname)) {
errors.logError(
new Error(i18n.t('errors.config.urlCannotContainGhostSubdir.description'),
config.url,
i18n.t('errors.config.urlCannotContainGhostSubdir.help')));
return Promise.reject(new Error(i18n.t('errors.config.urlCannotContainGhostSubdir.error')));
}
// Check that we have database values
if (!config.database || !config.database.client) {
errors.logError(
new Error(i18n.t('errors.config.dbConfigInvalid.description')),
JSON.stringify(config.database),
i18n.t('errors.config.dbConfigInvalid.help'));
return Promise.reject(new Error(i18n.t('errors.config.dbConfigInvalid.error')));
}
hasHostAndPort = config.server && !!config.server.host && !!config.server.port;
hasSocket = config.server && !!config.server.socket;
// Check for valid server host and port values
if (!config.server || !(hasHostAndPort || hasSocket)) {
errors.logError(
new Error(i18n.t('errors.config.invalidServerValues.description')),
JSON.stringify(config.server),
i18n.t('errors.config.invalidServerValues.help'));
return Promise.reject(new Error(i18n.t('errors.config.invalidServerValues.error')));
}
return Promise.resolve(config);
};
/**
* Helper method for checking the state of a particular privacy flag
* @param {String} privacyFlag The flag to check
* @returns {boolean}
*/
ConfigManager.prototype.isPrivacyDisabled = function (privacyFlag) {
if (!this.privacy) {
return false;
}
if (this.privacy.useTinfoil === true) {
return true;
}
return this.privacy[privacyFlag] === false;
};
/**
* Check if any of the currently set config items are deprecated, and issues a warning.
*/
ConfigManager.prototype.checkDeprecated = function () {
var self = this;
_.each(this.deprecatedItems, function (property) {
self.displayDeprecated(self._config, property.split('.'), []);
});
};
ConfigManager.prototype.displayDeprecated = function (item, properties, address) {
var self = this,
property = properties.shift(),
errorText,
explanationText,
helpText;
address.push(property);
if (item.hasOwnProperty(property)) {
if (properties.length) {
return self.displayDeprecated(item[property], properties, address);
}
errorText = i18n.t('errors.config.deprecatedProperty.error', {property: chalk.bold(address.join('.'))});
explanationText = i18n.t('errors.config.deprecatedProperty.explanation');
helpText = i18n.t('errors.config.deprecatedProperty.help', {url: 'http://support.ghost.org/config'});
errors.logWarn(errorText, explanationText, helpText);
}
};
if (testingEnvs.indexOf(process.env.NODE_ENV) > -1) {
defaultConfig = require('../../../config.example')[process.env.NODE_ENV];
}
module.exports = new ConfigManager(defaultConfig);