mirror of https://github.com/embarklabs/embark.git
417 lines
14 KiB
JavaScript
417 lines
14 KiB
JavaScript
const fs = require('./fs.js');
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const File = require('./file.js');
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const Plugins = require('./plugins.js');
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const utils = require('../utils/utils.js');
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const path = require('path');
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const deepEqual = require('deep-equal');
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const constants = require('../constants');
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const {canonicalHost, defaultHost} = require('../utils/host');
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var Config = function(options) {
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const self = this;
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this.env = options.env;
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this.blockchainConfig = {};
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this.contractsConfig = {};
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this.pipelineConfig = {};
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this.webServerConfig = {};
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this.chainTracker = {};
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this.assetFiles = {};
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this.contractsFiles = [];
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this.configDir = options.configDir || 'config/';
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this.chainsFile = options.chainsFile || './chains.json';
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this.plugins = options.plugins;
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this.logger = options.logger;
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this.events = options.events;
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this.embarkConfig = {};
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this.context = options.context || [constants.contexts.any];
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self.events.setCommandHandler("config:contractsConfig", (cb) => {
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cb(self.contractsConfig);
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});
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self.events.setCommandHandler("config:contractsFiles", (cb) => {
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cb(self.contractsFiles);
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});
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// TODO: refactor this so reading the file can be done with a normal resolver or something that takes advantage of the plugin api
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self.events.setCommandHandler("config:contractsFiles:add", (filename) => {
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self.contractsFiles.push(new File({filename: filename, type: File.types.custom, path: filename, resolver: function(callback) {
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callback(fs.readFileSync(filename).toString());
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}}));
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});
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};
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Config.prototype.loadConfigFiles = function(options) {
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var interceptLogs = options.interceptLogs;
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if (options.interceptLogs === undefined) {
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interceptLogs = true;
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}
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if (!fs.existsSync(options.embarkConfig)){
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this.logger.error(__('Cannot find file %s Please ensure you are running this command inside the Dapp folder', options.embarkConfig));
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process.exit(1);
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}
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this.embarkConfig = fs.readJSONSync(options.embarkConfig);
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this.embarkConfig.plugins = this.embarkConfig.plugins || {};
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this.plugins = new Plugins({plugins: this.embarkConfig.plugins, logger: this.logger, interceptLogs: interceptLogs, events: this.events, config: this, context: this.context, env: this.env});
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this.plugins.loadPlugins();
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this.loadEmbarkConfigFile();
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this.loadBlockchainConfigFile();
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this.loadStorageConfigFile();
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this.loadCommunicationConfigFile();
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this.loadNameSystemConfigFile();
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this.loadContractsConfigFile();
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this.loadPipelineConfigFile();
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this.loadContractsConfigFile();
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this.loadExternalContractsFiles();
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this.loadWebServerConfigFile();
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this.loadChainTrackerFile();
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this.loadPluginContractFiles();
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this._updateBlockchainCors();
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};
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Config.prototype.reloadConfig = function() {
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this.loadEmbarkConfigFile();
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this.loadBlockchainConfigFile();
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this.loadStorageConfigFile();
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this.loadCommunicationConfigFile();
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this.loadNameSystemConfigFile();
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this.loadContractsConfigFile();
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this.loadPipelineConfigFile();
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this.loadContractsConfigFile();
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this.loadExternalContractsFiles();
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this.loadChainTrackerFile();
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this._updateBlockchainCors();
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};
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Config.prototype._updateBlockchainCors = function(){
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let blockchainConfig = this.blockchainConfig;
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let storageConfig = this.storageConfig;
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let webServerConfig = this.webServerConfig;
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let corsParts = [];
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if(webServerConfig && webServerConfig.enabled) {
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if(webServerConfig.host) corsParts.push(utils.buildUrlFromConfig(webServerConfig));
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}
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if(storageConfig && storageConfig.enabled) {
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// if getUrl is specified in the config, that needs to be included in cors
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// instead of the concatenated protocol://host:port
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if(storageConfig.upload.getUrl) {
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// remove /ipfs or /bzz: from getUrl if it's there
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let getUrlParts = storageConfig.upload.getUrl.split('/');
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getUrlParts = getUrlParts.slice(0, 3);
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let host = canonicalHost(getUrlParts[2].split(':')[0]);
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let port = getUrlParts[2].split(':')[1];
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getUrlParts[2] = port ? [host, port].join(':') : host;
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corsParts.push(getUrlParts.join('/'));
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}
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// use our modified getUrl or in case it wasn't specified, use a built url
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else{
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corsParts.push(utils.buildUrlFromConfig(storageConfig.upload));
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}
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}
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// add whisper cors
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if(this.communicationConfig && this.communicationConfig.enabled && this.communicationConfig.provider === 'whisper'){
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corsParts.push('embark');
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}
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let cors = corsParts.join(',');
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if(blockchainConfig.rpcCorsDomain === 'auto' && cors.length) blockchainConfig.rpcCorsDomain = cors;
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if(blockchainConfig.wsOrigins === 'auto' && cors.length) blockchainConfig.wsOrigins = cors;
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};
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Config.prototype._mergeConfig = function(configFilePath, defaultConfig, env, enabledByDefault) {
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if (!configFilePath) {
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let configToReturn = defaultConfig['default'] || {};
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configToReturn.enabled = enabledByDefault || false;
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return configToReturn;
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}
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// due to embark.json; TODO: refactor this
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configFilePath = configFilePath.replace('.json','').replace('.js', '');
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if (!fs.existsSync(configFilePath + '.js') && !fs.existsSync(configFilePath + '.json')) {
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// TODO: remove this if
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if (this.logger) {
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this.logger.warn(__("no config file found at %s using default config", configFilePath));
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}
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return defaultConfig['default'] || {};
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}
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let config;
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if (fs.existsSync(configFilePath + '.js')) {
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config = require(fs.dappPath(configFilePath + '.js'));
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} else {
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config = fs.readJSONSync(configFilePath + '.json');
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}
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let configObject = utils.recursiveMerge(defaultConfig, config);
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if (env) {
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return utils.recursiveMerge(configObject['default'] || {}, configObject[env]);
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} else {
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return configObject;
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}
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};
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Config.prototype._getFileOrOject = function(object, filePath, property) {
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if (typeof (this.configDir) === 'object') {
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return this.configDir[property];
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}
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return this.configDir + filePath;
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};
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Config.prototype.loadBlockchainConfigFile = function() {
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var configObject = {
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"default": {
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"enabled": true,
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"rpcCorsDomain": "auto",
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"wsOrigins": "auto"
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}
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};
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let configFilePath = this._getFileOrOject(this.configDir, 'blockchain', 'blockchain');
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this.blockchainConfig = this._mergeConfig(configFilePath, configObject, this.env, true);
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};
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Config.prototype.loadContractsConfigFile = function() {
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var defaultVersions = {
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"web3": "1.0.0-beta",
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"solc": "0.4.17"
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};
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var versions = utils.recursiveMerge(defaultVersions, this.embarkConfig.versions || {});
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var configObject = {
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"default": {
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"versions": versions,
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"deployment": {
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"host": "localhost", "port": 8545, "type": "rpc"
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},
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"dappConnection": [
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"$WEB3",
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"localhost:8545"
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],
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"gas": "auto",
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"contracts": {
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}
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}
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};
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var contractsConfigs = this.plugins.getPluginsProperty('contractsConfig', 'contractsConfigs');
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contractsConfigs.forEach(function(pluginConfig) {
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configObject = utils.recursiveMerge(configObject, pluginConfig);
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});
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let configFilePath = this._getFileOrOject(this.configDir, 'contracts', 'contracts');
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const newContractsConfig = this._mergeConfig(configFilePath, configObject, this.env);
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if (!deepEqual(newContractsConfig, this.contractsConfig)) {
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this.events.emit(constants.events.contractConfigChanged, newContractsConfig);
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this.contractsConfig = newContractsConfig;
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}
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};
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Config.prototype.loadExternalContractsFiles = function() {
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let contracts = this.contractsConfig.contracts;
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for (let contractName in contracts) {
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let contract = contracts[contractName];
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if (!contract.file) {
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continue;
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}
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if (contract.file.startsWith('http') || contract.file.startsWith('git')) {
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const fileObj = utils.getExternalContractUrl(contract.file);
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if (!fileObj) {
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return this.logger.error(__("HTTP contract file not found") + ": " + contract.file);
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}
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const localFile = fileObj.filePath;
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this.contractsFiles.push(new File({filename: localFile, type: File.types.http, basedir: '', path: fileObj.url}));
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} else if (fs.existsSync(contract.file)) {
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this.contractsFiles.push(new File({filename: contract.file, type: File.types.dapp_file, basedir: '', path: contract.file}));
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} else if (fs.existsSync(path.join('./node_modules/', contract.file))) {
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this.contractsFiles.push(new File({filename: path.join('./node_modules/', contract.file), type: File.types.dapp_file, basedir: '', path: path.join('./node_modules/', contract.file)}));
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} else {
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this.logger.error(__("contract file not found") + ": " + contract.file);
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}
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}
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};
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Config.prototype.loadStorageConfigFile = function() {
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var versions = utils.recursiveMerge({"ipfs-api": "17.2.4", "p-iteration": "1.1.7"}, this.embarkConfig.versions || {});
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var configObject = {
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"default": {
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"versions": versions,
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"enabled": true,
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"available_providers": ["ipfs", "swarm"],
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"ipfs_bin": "ipfs",
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"upload": {
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"provider": "ipfs",
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"protocol": "http",
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"host" : defaultHost,
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"port": 5001,
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"getUrl": "http://localhost:8080/ipfs/"
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},
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"dappConnection": [{"provider": "ipfs", "host": "localhost", "port": 5001, "getUrl": "http://localhost:8080/ipfs/"}]
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}
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};
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let configFilePath = this._getFileOrOject(this.configDir, 'storage', 'storage');
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this.storageConfig = this._mergeConfig(configFilePath, configObject, this.env);
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};
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Config.prototype.loadNameSystemConfigFile = function() {
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// todo: spec out names for registration in the file itself for a dev chain
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var configObject = {
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"default": {
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"available_providers": ["ens"],
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"provider": "ens",
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"enabled": true,
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"register": {
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"rootDomain": "embark"
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}
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}
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};
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let configFilePath = this._getFileOrOject(this.configDir, 'namesystem', 'namesystem');
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this.namesystemConfig = this._mergeConfig(configFilePath, configObject, this.env);
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};
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Config.prototype.loadCommunicationConfigFile = function() {
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var configObject = {
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"default": {
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"enabled": true,
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"provider": "whisper",
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"available_providers": ["whisper"],
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"connection": {
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"host": defaultHost,
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"port": 8546,
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"type": "ws"
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}
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}
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};
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let configFilePath = this._getFileOrOject(this.configDir, 'communication', 'communication');
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this.communicationConfig = this._mergeConfig(configFilePath, configObject, this.env);
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};
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Config.prototype.loadWebServerConfigFile = function() {
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var configObject = {
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"enabled": true,
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"host": defaultHost,
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"port": 8000
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};
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let configFilePath = this._getFileOrOject(this.configDir, 'webserver', 'webserver');
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this.webServerConfig = this._mergeConfig(configFilePath, configObject, false);
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};
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Config.prototype.loadEmbarkConfigFile = function() {
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const contracts = this.embarkConfig.contracts;
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const newContractsFiles = this.loadFiles(contracts);
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if (!this.contractFiles || newContractsFiles.length !== this.contractFiles.length || !deepEqual(newContractsFiles, this.contractFiles)) {
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this.events.emit(constants.events.contractFilesChanged, newContractsFiles);
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this.contractsFiles = newContractsFiles;
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}
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// determine contract 'root' directories
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this.contractDirectories = contracts.map((dir) => {
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return dir.split("**")[0];
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}).map((dir) => {
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return dir.split("*.")[0];
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});
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this.contractDirectories.push(constants.httpContractsDirectory);
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this.buildDir = this.embarkConfig.buildDir;
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this.configDir = this.embarkConfig.config;
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};
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Config.prototype.loadPipelineConfigFile = function() {
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var assets = this.embarkConfig.app;
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for(var targetFile in assets) {
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this.assetFiles[targetFile] = this.loadFiles(assets[targetFile]);
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}
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};
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Config.prototype.loadChainTrackerFile = function() {
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if (!fs.existsSync(this.chainsFile)) {
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this.logger.info(this.chainsFile + ' ' + __('file not found, creating it...'));
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fs.writeJSONSync(this.chainsFile, {});
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}
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this.chainTracker = fs.readJSONSync(this.chainsFile);
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};
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function findMatchingExpression(filename, filesExpressions) {
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for (let fileExpression of filesExpressions) {
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var matchingFiles = utils.filesMatchingPattern(fileExpression);
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for (let matchFile of matchingFiles) {
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if (matchFile === filename) {
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return path.dirname(fileExpression).replace(/\*/g, '');
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}
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}
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}
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return path.dirname(filename);
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}
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Config.prototype.loadFiles = function(files) {
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var self = this;
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var originalFiles = utils.filesMatchingPattern(files);
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var readFiles = [];
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originalFiles.filter(function(file) {
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return (file[0] === '$' || file.indexOf('.') >= 0);
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}).filter(function(file) {
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let basedir = findMatchingExpression(file, files);
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readFiles.push(new File({filename: file, type: File.types.dapp_file, basedir: basedir, path: file}));
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});
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var filesFromPlugins = [];
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var filePlugins = self.plugins.getPluginsFor('pipelineFiles');
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filePlugins.forEach(function(plugin) {
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try {
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var fileObjects = plugin.runFilePipeline();
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for (var i=0; i < fileObjects.length; i++) {
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var fileObject = fileObjects[i];
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filesFromPlugins.push(fileObject);
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}
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}
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catch(err) {
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self.logger.error(err.message);
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}
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});
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filesFromPlugins.filter(function(file) {
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if ((file.intendedPath && utils.fileMatchesPattern(files, file.intendedPath)) || utils.fileMatchesPattern(files, file.file)) {
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readFiles.push(file);
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}
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});
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return readFiles;
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};
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// NOTE: this doesn't work for internal modules
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Config.prototype.loadPluginContractFiles = function() {
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var self = this;
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var contractsPlugins = this.plugins.getPluginsFor('contractFiles');
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contractsPlugins.forEach(function(plugin) {
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plugin.contractsFiles.forEach(function(file) {
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var filename = file.replace('./','');
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self.contractsFiles.push(new File({filename: filename, type: File.types.custom, path: filename, resolver: function(callback) {
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callback(plugin.loadPluginFile(file));
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}}));
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});
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});
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};
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module.exports = Config;
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