Tons of Solutions Engineering work done today for the rest of the CS team! Headway, Howard Hanna, Engels, Brighton, etc. Also completed Datasnippers auth flow and worked on Anthology's script. Cloned Anthology's courses (900..) and will clone Full Story on Monday.

Scripts/node_modules/socks/build/common/helpers.js

@@ -0,0 +1,128 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.validateSocksClientChainOptions = exports.validateSocksClientOptions = void 0;
+const util_1 = require("./util");
+const constants_1 = require("./constants");
+const stream = require("stream");
+/**
+ * Validates the provided SocksClientOptions
+ * @param options { SocksClientOptions }
+ * @param acceptedCommands { string[] } A list of accepted SocksProxy commands.
+ */
+function validateSocksClientOptions(options, acceptedCommands = ['connect', 'bind', 'associate']) {
+    // Check SOCKs command option.
+    if (!constants_1.SocksCommand[options.command]) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksCommand, options);
+    }
+    // Check SocksCommand for acceptable command.
+    if (acceptedCommands.indexOf(options.command) === -1) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksCommandForOperation, options);
+    }
+    // Check destination
+    if (!isValidSocksRemoteHost(options.destination)) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsDestination, options);
+    }
+    // Check SOCKS proxy to use
+    if (!isValidSocksProxy(options.proxy)) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsProxy, options);
+    }
+    // Validate custom auth (if set)
+    validateCustomProxyAuth(options.proxy, options);
+    // Check timeout
+    if (options.timeout && !isValidTimeoutValue(options.timeout)) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsTimeout, options);
+    }
+    // Check existing_socket (if provided)
+    if (options.existing_socket &&
+        !(options.existing_socket instanceof stream.Duplex)) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsExistingSocket, options);
+    }
+}
+exports.validateSocksClientOptions = validateSocksClientOptions;
+/**
+ * Validates the SocksClientChainOptions
+ * @param options { SocksClientChainOptions }
+ */
+function validateSocksClientChainOptions(options) {
+    // Only connect is supported when chaining.
+    if (options.command !== 'connect') {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksCommandChain, options);
+    }
+    // Check destination
+    if (!isValidSocksRemoteHost(options.destination)) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsDestination, options);
+    }
+    // Validate proxies (length)
+    if (!(options.proxies &&
+        Array.isArray(options.proxies) &&
+        options.proxies.length >= 2)) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsProxiesLength, options);
+    }
+    // Validate proxies
+    options.proxies.forEach((proxy) => {
+        if (!isValidSocksProxy(proxy)) {
+            throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsProxy, options);
+        }
+        // Validate custom auth (if set)
+        validateCustomProxyAuth(proxy, options);
+    });
+    // Check timeout
+    if (options.timeout && !isValidTimeoutValue(options.timeout)) {
+        throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsTimeout, options);
+    }
+}
+exports.validateSocksClientChainOptions = validateSocksClientChainOptions;
+function validateCustomProxyAuth(proxy, options) {
+    if (proxy.custom_auth_method !== undefined) {
+        // Invalid auth method range
+        if (proxy.custom_auth_method < constants_1.SOCKS5_CUSTOM_AUTH_START ||
+            proxy.custom_auth_method > constants_1.SOCKS5_CUSTOM_AUTH_END) {
+            throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsCustomAuthRange, options);
+        }
+        // Missing custom_auth_request_handler
+        if (proxy.custom_auth_request_handler === undefined ||
+            typeof proxy.custom_auth_request_handler !== 'function') {
+            throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsCustomAuthOptions, options);
+        }
+        // Missing custom_auth_response_size
+        if (proxy.custom_auth_response_size === undefined) {
+            throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsCustomAuthOptions, options);
+        }
+        // Missing/invalid custom_auth_response_handler
+        if (proxy.custom_auth_response_handler === undefined ||
+            typeof proxy.custom_auth_response_handler !== 'function') {
+            throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsCustomAuthOptions, options);
+        }
+    }
+}
+/**
+ * Validates a SocksRemoteHost
+ * @param remoteHost { SocksRemoteHost }
+ */
+function isValidSocksRemoteHost(remoteHost) {
+    return (remoteHost &&
+        typeof remoteHost.host === 'string' &&
+        typeof remoteHost.port === 'number' &&
+        remoteHost.port >= 0 &&
+        remoteHost.port <= 65535);
+}
+/**
+ * Validates a SocksProxy
+ * @param proxy { SocksProxy }
+ */
+function isValidSocksProxy(proxy) {
+    return (proxy &&
+        (typeof proxy.host === 'string' || typeof proxy.ipaddress === 'string') &&
+        typeof proxy.port === 'number' &&
+        proxy.port >= 0 &&
+        proxy.port <= 65535 &&
+        (proxy.type === 4 || proxy.type === 5));
+}
+/**
+ * Validates a timeout value.
+ * @param value { Number }
+ */
+function isValidTimeoutValue(value) {
+    return typeof value === 'number' && value > 0;
+}
+//# sourceMappingURL=helpers.js.map