Setup files

- Adding setup files to configure, set password.
- Private key will now be stored in encrypted shares. Password will be required for running the server.
- Automated creation of MySQL schema.
- Making floGlobals common for both server and client.
- Fixed a minor bug in database.js

.gitignore

@@ -2,4 +2,5 @@
 /package-lock.json
 /args/config.json
 /args/param.json
+/args/keys.json
 *test*

args/config-sample.json

@@ -1,11 +0,0 @@
-{
-    "secret": "Secret_For_Session__Enter_A_Strong_String(Text/Password)",
-    "blockchain_id": "FLO_ID_of_the_admin",
-    "blockchain_private": "Private_Key_of_the_Admin",
-    "port": "8080",
-
-    "sql_user": "mySQL_user",
-    "sql_pwd": "mySQL_password",
-    "sql_db": "supernode",
-    "sql_host": "localhost"
-}

public/floGlobals.js

@@ -8,6 +8,7 @@ const floGlobals = {
         FLO: ['https://livenet.flocha.in/', 'https://flosight.duckdns.org/'],
         FLO_TEST: ['https://testnet-flosight.duckdns.org', 'https://testnet.flocha.in/']
     },
+    adminID: "FKAEdnPfjXLHSYwrXQu377ugN4tXU7VGdf",
     sendAmt: 0.001,
     fee: 0.0005,
     tokenURL: "https://ranchimallflo.duckdns.org/",

public/home.html

@@ -7,28 +7,7 @@
             border: 1px solid black;
         }
     </style>
-    <script>
+    <script src="floGlobals.js"></script>
-
-    </script>
-    <script id="floGlobals">
-        /* Constants for FLO blockchain operations !!Make sure to add this at begining!! */
-        const floGlobals = {
-
-            //Required for all
-            blockchain: "FLO",
-
-            //Required for blockchain API operators
-            apiURL: {
-                FLO: ['https://livenet.flocha.in/', 'https://flosight.duckdns.org/'],
-                FLO_TEST: ['https://testnet-flosight.duckdns.org/', 'https://testnet.flocha.in/']
-            },
-            tokenURL: "https://ranchimallflo.duckdns.org/",
-            token: "rupee",
-            adminID: "FKAEdnPfjXLHSYwrXQu377ugN4tXU7VGdf",
-            sendAmt: 0.001,
-            fee: 0.0005,
-        }
-    </script>
     <script src="https://sairajzero.github.io/Standard_Operations/cdn/floCrypto.js"></script>
     <script src="https://github.com/sairajzero/Standard_Operations/releases/download/test/floBlockchainAPI.js"></script>
     <script src="fn.js"></script>

setup/configure-settings.js

@@ -0,0 +1,90 @@
+const fs = require('fs');
+const getInput = require('./getInput');
+
+var config, flag = false;
+try {
+    config = require('./args/config.json');
+    flag = true;
+} catch (error) {
+    config = {
+        "secret": null,
+        "blockchain_id": null,
+        "blockchain_private": null,
+        "port": "8080",
+
+        "sql_user": null,
+        "sql_pwd": null,
+        "sql_db": "exchange",
+        "sql_host": "localhost"
+    };
+}
+
+function configurePort() {
+    return new Promise(resolve => {
+        getInput.Text('Enter port', config["port"]).then(port => {
+            config["port"] = port;
+            resolve(true);
+        })
+    })
+};
+
+function configureSQL() {
+    return new Promise(resolve => {
+        getInput.YesOrNo('Do you want to re-configure mySQL connection').then(value => {
+            if (value) {
+                console.log('Enter mySQL connection values: ')
+                getInput.Text('Host', config['sql_host']).then(host => {
+                    config['sql_host'] = host;
+                    getInput.Text('Database name', config['sql_db']).then(dbname => {
+                        config['sql_db'] = dbname;
+                        getInput.Text('MySQL username', config['sql_user']).then(sql_user => {
+                            config['sql_user'] = sql_user;
+                            getInput.Text('Mysql password', config['sql_pwd']).then(sql_pwd => {
+                                config['sql_pwd'] = sql_pwd;
+                                resolve(true);
+                            })
+                        })
+                    })
+                })
+            } else
+                resolve(false);
+        })
+    })
+};
+
+function configure() {
+    return new Promise((resolve, reject) => {
+        configurePort().then(port_result => {
+            configureSQL().then(sql_result => {
+                fs.writeFile(__dirname + '/../args/config.json', JSON.stringify(config), 'utf8', (err) => {
+                    if (err) {
+                        console.error(err);
+                        return reject(false);
+                    }
+                    console.log('Configuration successful!');
+                    if (sql_result) {
+                        getInput.YesOrNo('Do you want to create schema in the database').then(value => {
+                            if (value) {
+                                const createSchema = require('./create-schema');
+                                createSchema().then(result => resolve(result))
+                                    .catch(error => {
+                                        console.log('Retry using: \n' + 'npm run create-schema');
+                                        reject(error);
+                                    });
+                            } else {
+                                console.log('To create schema, use: \n' + 'npm run create-schema');
+                                resolve(true);
+                            }
+                        });
+                    } else
+                        resolve(true);
+                })
+            })
+        });
+    })
+}
+
+if (!module.parent)
+    configure().then(_ => null).catch(_ => null);
+else
+    module.exports = configure;

setup/create-schema.js

@@ -0,0 +1,37 @@
+const fs = require('fs');
+const config = require('./args/config.json');
+let Database = require('./src/database');
+
+function createSchema() {
+    return new Promise((resolve, reject) => {
+        fs.readFile(__dirname + '/../args/schema.sql', 'utf8', (err, data) => {
+            if (err) {
+                console.error(err);
+                return reject(null);
+            }
+            Database(config["sql_user"], config["sql_pwd"], config["sql_db"], config["sql_host"]).then(DB => {
+                let txQueries = data.split(';');
+                txQueries.pop();
+                txQueries = txQueries.map(q => q.trim().replace(/\n/g, ' '));
+                console.log(txQueries);
+                DB.transaction(txQueries).then(_ => {
+                    console.log('SQL Schema created successfully!');
+                    resolve(true);
+                }).catch(error => {
+                    console.error(error.message);
+                    console.log('SQL Schema creation failed! Check user permission');
+                    reject(true);
+                });
+            }).catch(error => {
+                console.error(error);
+                console.log('Unable to connect to MySQL database! Check user permission');
+                reject(false);
+            });
+        });
+    });
+}
+
+if (!module.parent)
+    createSchema().then(_ => null).catch(_ => null);
+else
+    module.exports = createSchema;

setup/getInput.js

@@ -0,0 +1,42 @@
+const readline = require('readline');
+
+const getInput = {
+    Text: function(text, current = null) {
+        return new Promise((resolve) => {
+            let r = readline.createInterface({
+                input: process.stdin,
+                output: process.stdout
+            });
+            r.question(`${text} :` + (current ? `(${current})` : ''), value => {
+                r.close();
+                value = value || current;
+                if (value === null) {
+                    console.log("Please enter a value!");
+                    this.Text(text, current).then(result => resolve(result));
+                } else
+                    resolve(value);
+            });
+        })
+    },
+
+    YesOrNo: function(text, def_value = "YES") {
+        return new Promise((resolve) => {
+            let r = readline.createInterface({
+                input: process.stdin,
+                output: process.stdout
+            });
+            r.question(`${text}? [YES/NO] : (${def_value})`, value => {
+                r.close();
+                value = (value || def_value).toLowerCase();
+                value = ['yes', 'y'].includes(value) ? true : ['no', 'n'].includes(value) ? false : null;
+                if (value === null) {
+                    console.log("Please enter a valid value!");
+                    this.YesOrNo(text, def_value).then(result => resolve(result));
+                } else
+                    resolve(value);
+            });
+        })
+    }
+}
+
+module.exports = getInput;

setup/help.js

@@ -0,0 +1,11 @@
+let message = `
+Exchange market
+
+npm install             - Install the app and node modules.
+npm run setup           - Finish the setup (configure and reset password).
+npm run configure       - Configure the app.
+npm run reset-password  - Reset the password (for private-key).
+npm run create-schema   - Create the schema in MySQL database.
+npm run help            - List all commands.
+npm start               - Start the application.
+`;

setup/post-install.js

@@ -0,0 +1,33 @@
+const getInput = require("./getInput");
+
+let message = `
+Exchange Market is installed
+To list all commands, use: 
+npm run help
+`;
+console.log(message);
+
+getInput.YesOrNo('Do you want to finish the setup now').then(value => {
+    if (value) {
+        let configureSettings = require('./configure-settings');
+        configureSettings()
+            .then(_ => console.log('To Re-configure, use:'))
+            .catch(_ => console.log('Finish the configuration later using: '))
+            .finally(_ => {
+                console.log('npm run configure');
+                getInput.YesOrNo('Do you want to Reset password for private key now').then(value => {
+                    if (value) {
+                        let resetPassword = require('./reset-password');
+                        resetPassword()
+                            .then(_ => console.log('To reset the password again, use: '))
+                            .catch(_ => console.log('Reset the password later using: '))
+                            .finally(_ => {
+                                console.log('npm run reset-password');
+                            })
+                    } else
+                        console.log('Reset the password later using:\n' + 'npm run reset-password');
+                })
+            })
+    } else
+        console.log('Finish the setup later using:\n' + 'npm run setup');
+})

setup/reset-password.js

@@ -0,0 +1,83 @@
+const fs = require('fs');
+const getInput = require('./getInput');
+
+const floGlobals = require('../public/floGlobals');
+require('../src/set_globals');
+require('../src/lib');
+require('../src/floCrypto');
+
+console.log(__dirname);
+
+function validateKey(privKey) {
+    return new Promise((resolve, reject) => {
+        if (floCrypto.verifyPrivKey(privKey, floGlobals.adminID))
+            return resolve(privKey);
+        else {
+            getInput.Text('Incorrect Private Key! Re-Enter: (Cancel)', 'Cancel').then(value => {
+                if (value === 'Cancel')
+                    return reject(true);
+                validateKey(value)
+                    .then(result => resolve(result))
+                    .catch(error => reject(error))
+            });
+        }
+    })
+}
+
+function getPassword() {
+    return new Promise((resolve, reject) => {
+        getInput.Text(`Enter a password [Minimum 8 characters]`, 'Cancel').then(value1 => {
+            if (value1 === 'Cancel')
+                return reject(true);
+            else if (value1.length < 8) {
+                console.log('Password length must be minimum of 8 characters');
+                getPassword()
+                    .then(result => resolve(result))
+                    .catch(error => reject(error))
+            } else {
+                getInput.Text(`Re-enter password`).then(value2 => {
+                    if (value1 !== value2) {
+                        console.log('Passwords doesnot match! Try again.');
+                        getPassword()
+                            .then(result => resolve(result))
+                            .catch(error => reject(error))
+                    } else 
+                        resolve(value1);
+                })
+            }
+        });
+    })
+}
+
+function resetPassword() {
+    return new Promise((resolve, reject) => {
+        getInput.Text(`Enter private key for adminID (${floGlobals.adminID})`).then(value => {
+            validateKey(value).then(privKey => {
+                getPassword().then(password => {
+                    let encrypted = Crypto.AES.encrypt(privKey, password);
+                    let randNum = floCrypto.randInt(10, 15);
+                    let splitShares = floCrypto.createShamirsSecretShares(encrypted, randNum, randNum);
+                    fs.writeFile(__dirname + '/../args/keys.json', JSON.stringify(splitShares), 'utf8', (err) => {
+                        if (err) {
+                            console.error(err);
+                            return reject(false);
+                        }
+                        console.log('Password reset successful!');
+                        resolve(true);
+                    })
+                }).catch(error => {
+                    console.log('Password reset cancelled!');
+                    reject(true);
+                })
+            }).catch(error => {
+                console.log('Password reset cancelled!');
+                reject(true);
+            })
+        })
+    })
+}
+
+if (!module.parent)
+    resetPassword().then(_ => null).catch(error => console.error(error));
+else
+    module.exports = resetPassword;

src/database.js

@@ -66,6 +66,8 @@ function Database(user, password, dbname, host = 'localhost') {
                                         queryFn(result);
                                     }
                                 };
+                                if (!Array.isArray(q_i))
+                                    q_i = [q_i];
                                 if (q_i[1])
                                     conn.query(q_i[0], q_i[1], callback);
                                 else

src/main.js

@@ -1,5 +1,5 @@
 const config = require('../args/config.json');
-global.floGlobals = require("./floGlobals");
+global.floGlobals = require('../public/floGlobals');
 require('./set_globals');
 require('./lib');
 require('./floCrypto');
@@ -7,21 +7,30 @@ require('./floBlockchainAPI');
 
 const Database = require("./database");
 const App = require('./app');
+const floGlobals = require('../public/floGlobals');
 const PORT = config['port'];
 
 module.exports = function startServer(public_dir) {
-
+    try {
-    global.myPrivKey = config["blockchain_private"];
+        var _tmp = require('../args/keys.json');
-    global.myPubKey = floCrypto.getPubKeyHex(global.myPrivKey);
+        _tmp = floCrypto.retrieveShamirSecret(_tmp);
-    global.myFloID = floCrypto.getFloID(global.myPubKey);
+        var _pass = process.env.password;
-    
+        _tmp = Crypto.AES.decrypt(_tmp, _pass);
-    if (global.myFloID !== config["blockchain_id"] || !floCrypto.verifyPrivKey(global.myPrivKey, global.myFloID)) {
+        if (floCrypto.verifyPrivKey(_tmp, floGlobals.adminID)) {
-        console.error("Invalid Private Key for adminID");
+            global.myPrivKey = _tmp;
-        return;
+            global.myPubKey = floCrypto.getPubKeyHex(global.myPrivKey);
+            global.myFloID = floCrypto.getFloID(global.myPubKey);
+        } else {
+            console.error('Loaded wrong private key!');
+            process.exit(1);
+        }
+    } catch (error) {
+        console.error('Unable to load private key!');
+        process.exit(1);
     }
-    floGlobals.adminID = config["blockchain_id"];
+
     global.PUBLIC_DIR = public_dir;
-    console.log(PUBLIC_DIR, global.myFloID);
+    console.debug(PUBLIC_DIR, global.myFloID);
 
     Database(config["sql_user"], config["sql_pwd"], config["sql_db"], config["sql_host"]).then(DB => {
         const app = App(config['secret'], DB);