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/******************************************************************************/
/* config.js -- Code dealing with the config file, command line arguments,
* and dropping privileges
*
* Copyright 2012-2016 AOL Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this Software except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*jshint
node: true, plusplus: false, curly: true, eqeqeq: true, immed: true, latedef: true, newcap: true, nonew: true, undef: true, strict: true, trailing: true
*/
'use strict';
//////////////////////////////////////////////////////////////////////////////////
//// Command Line Parsing
//////////////////////////////////////////////////////////////////////////////////
var ini = require('iniparser'),
os = require('os'),
fs = require('fs'),
crypto = require('crypto');
exports.debug = false;
var internals = {
configFile: "/data/moloch/etc/config.ini",
nodeName: os.hostname().split(".")[0],
fields: [],
fieldsMap: {},
categories: {}
};
function processArgs() {
var args = [];
for (var i = 0, ilen = process.argv.length; i < ilen; i++) {
if (process.argv[i] === "-c") {
i++;
internals.configFile = process.argv[i];
} else if (process.argv[i] === "-n") {
i++;
internals.nodeName = process.argv[i];
} else if (process.argv[i] === "--debug") {
exports.debug = true;
} else {
args.push(process.argv[i]);
}
}
process.argv = args;
}
processArgs();
//////////////////////////////////////////////////////////////////////////////////
// Encryption stuff
//////////////////////////////////////////////////////////////////////////////////
exports.md5 = function (str, encoding){
return crypto
.createHash('md5')
.update(str)
.digest(encoding || 'hex');
};
exports.pass2store = function(userid, password) {
var m = exports.md5(userid + ":" + exports.getFull("default", "httpRealm", "Moloch") + ":" + password);
var c = crypto.createCipher('aes192', exports.getFull("default", "passwordSecret", "password"));
var e = c.update(m, "binary", "hex");
e += c.final("hex");
return e;
};
exports.store2ha1 = function(passstore) {
try {
var c = crypto.createDecipher('aes192', exports.getFull("default", "passwordSecret", "password"));
var d = c.update(passstore, "hex", "binary");
d += c.final("binary");
return d;
} catch (e) {
console.log("passwordSecret set in the [default] section can not decrypt information. You may need to re-add users if you've changed the secret.", e);
process.exit(1);
}
};
exports.obj2auth = function(obj, secret) {
secret = secret || exports.getFull("default", "passwordSecret", "password");
var c = crypto.createCipher('aes192', secret);
var e = c.update(JSON.stringify(obj), "binary", "hex");
e += c.final("hex");
return e;
};
exports.auth2obj = function(auth, secret) {
secret = secret || exports.getFull("default", "passwordSecret", "password");
var c = crypto.createDecipher('aes192', secret);
var d = c.update(auth, "hex", "binary");
d += c.final("binary");
return JSON.parse(d);
};
//////////////////////////////////////////////////////////////////////////////////
// Config File & Dropping Privileges
//////////////////////////////////////////////////////////////////////////////////
if (!fs.existsSync(internals.configFile)) {
console.log("ERROR - Couldn't open config file '" + internals.configFile + "' maybe use the -c <configfile> option");
process.exit(1);
}
internals.config = ini.parseSync(internals.configFile);
if (internals.config["default"] === undefined) {
console.log("ERROR - [default] section missing from", internals.configFile);
process.exit(1);
}
exports.getFull = function(node, key, defaultValue) {
var value;
if (internals.config[node] && internals.config[node][key] !== undefined ) {
value = internals.config[node][key];
} else if (internals.config[node] && internals.config[node].nodeClass && internals.config[internals.config[node].nodeClass] && internals.config[internals.config[node].nodeClass][key]) {
value = internals.config[internals.config[node].nodeClass][key];
} else if (internals.config["default"][key]) {
value = internals.config["default"][key];
} else {
value = defaultValue;
}
if (value === "false") {
return false;
}
return value;
};
exports.get = function(key, defaultValue) {
return exports.getFull(internals.nodeName, key, defaultValue);
};
exports.getObj = function(key, defaultValue) {
var full = exports.getFull(internals.nodeName, key, defaultValue);
if (!full) {
return null;
}
var obj = {};
full.split(';').forEach(function(element) {
var parts = element.split("=");
if (parts && parts.length === 2) {
if (parts[1] === "true") {
parts[1] = true;
} else if (parts[1] === "false") {
parts[1] = false;
}
obj[parts[0]] = parts[1];
}
});
return obj;
};
function loadIncludes(includes) {
if (!includes) {
return;
}
includes.split(';').forEach(function(file) {
if (!fs.existsSync(file)) {
console.log("ERROR - Couldn't open config includes file '" + file + "'");
process.exit(1);
}
var config = ini.parseSync(file);
for (var group in config) {
if (!internals.config[group]) {
internals.config[group] = config[group];
} else {
for (var key in config[group]) {
internals.config[group][key] = config[group][key];
}
}
}
});
}
loadIncludes(exports.get("includes", null));
function dropPrivileges() {
if (process.getuid() !== 0) {
return;
}
var group = exports.get("dropGroup", null);
if (group !== null) {
process.setgid(group);
}
var user = exports.get("dropUser", null);
if (user !== null) {
process.setuid(user);
}
}
exports.getConfigFile = function() {
return internals.configFile;
};
exports.isHTTPS = function(node) {
return exports.getFull(node || internals.nodeName, "keyFile") &&
exports.getFull(node || internals.nodeName, "certFile");
};
exports.basePath = function(node) {
return exports.getFull(node || internals.nodeName, "webBasePath", "/");
};
exports.nodeName = function() {
return internals.nodeName;
};
exports.keys = function(section) {
if (internals.config[section] === undefined) {return [];}
return Object.keys(internals.config[section]);
};
exports.headers = function(section) {
if (internals.config[section] === undefined) {return [];}
var keys = Object.keys(internals.config[section]);
if (!keys) {return [];}
var headers = Object.keys(internals.config[section]).map(function(key) {
var obj = {name: key};
internals.config[section][key].split(';').forEach(function(element) {
var i = element.indexOf(':');
if (i === -1) {
return;
}
var parts = [element.slice(0, i), element.slice(i+1)];
if (parts[1] === "true") {
parts[1] = true;
} else if (parts[1] === "false") {
parts[1] = false;
}
obj[parts[0]] = parts[1];
});
return obj;
});
return headers;
};
exports.configMap = function(section, name, d) {
var data = internals.config[section] || d;
if (data === undefined) {return {};}
var keys = Object.keys(data);
if (!keys) {return {};}
var map = {};
keys.forEach(function(key) {
var obj = {};
data[key].split(';').forEach(function(element) {
var i = element.indexOf(':');
if (i === -1) {
return;
}
var parts = [element.slice(0, i), element.slice(i+1)];
if (parts[1] === "true") {
parts[1] = true;
} else if (parts[1] === "false") {
parts[1] = false;
}
obj[parts[0]] = parts[1];
});
map[key] = obj;
});
return map;
};
dropPrivileges();
//////////////////////////////////////////////////////////////////////////////////
// Fields
//////////////////////////////////////////////////////////////////////////////////
exports.getFields = function() {
return internals.fields;
};
exports.getFieldsMap = function() {
return internals.fieldsMap;
};
exports.getCategories = function() {
return internals.categories;
};
exports.loadFields = function(data) {
internals.fields = [];
internals.fieldsMap = {};
internals.dbFieldsMap = {};
internals.categories = {};
data.forEach(function(field) {
var source = field._source;
source.exp = field._id;
internals.fieldsMap[field._id] = source;
internals.dbFieldsMap[source.dbField] = source;
internals.fields.push(source);
if (!internals.categories[source.group]) {
internals.categories[source.group] = [];
}
internals.categories[source.group].push(source);
(source.aliases || []).forEach(function(alias) {
internals.fieldsMap[alias] = source;
});
});
function sortFunc(a,b) {
return a.exp.localeCompare(b.exp);
}
for (var cat in internals.categories) {
internals.categories[cat] = internals.categories[cat].sort(sortFunc);
}
};