source: trip-planner-front/node_modules/socks/build/common/helpers.js@ bdd6491

Last change on this file since bdd6491 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 5.4 KB
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1"use strict";
2Object.defineProperty(exports, "__esModule", { value: true });
3exports.validateSocksClientChainOptions = exports.validateSocksClientOptions = void 0;
4const util_1 = require("./util");
5const constants_1 = require("./constants");
6const stream = require("stream");
7/**
8 * Validates the provided SocksClientOptions
9 * @param options { SocksClientOptions }
10 * @param acceptedCommands { string[] } A list of accepted SocksProxy commands.
11 */
12function validateSocksClientOptions(options, acceptedCommands = ['connect', 'bind', 'associate']) {
13 // Check SOCKs command option.
14 if (!constants_1.SocksCommand[options.command]) {
15 throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksCommand, options);
16 }
17 // Check SocksCommand for acceptable command.
18 if (acceptedCommands.indexOf(options.command) === -1) {
19 throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksCommandForOperation, options);
20 }
21 // Check destination
22 if (!isValidSocksRemoteHost(options.destination)) {
23 throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsDestination, options);
24 }
25 // Check SOCKS proxy to use
26 if (!isValidSocksProxy(options.proxy)) {
27 throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsProxy, options);
28 }
29 // Validate custom auth (if set)
30 validateCustomProxyAuth(options.proxy, options);
31 // Check timeout
32 if (options.timeout && !isValidTimeoutValue(options.timeout)) {
33 throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsTimeout, options);
34 }
35 // Check existing_socket (if provided)
36 if (options.existing_socket &&
37 !(options.existing_socket instanceof stream.Duplex)) {
38 throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsExistingSocket, options);
39 }
40}
41exports.validateSocksClientOptions = validateSocksClientOptions;
42/**
43 * Validates the SocksClientChainOptions
44 * @param options { SocksClientChainOptions }
45 */
46function validateSocksClientChainOptions(options) {
47 // Only connect is supported when chaining.
48 if (options.command !== 'connect') {
49 throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksCommandChain, options);
50 }
51 // Check destination
52 if (!isValidSocksRemoteHost(options.destination)) {
53 throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsDestination, options);
54 }
55 // Validate proxies (length)
56 if (!(options.proxies &&
57 Array.isArray(options.proxies) &&
58 options.proxies.length >= 2)) {
59 throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsProxiesLength, options);
60 }
61 // Validate proxies
62 options.proxies.forEach((proxy) => {
63 if (!isValidSocksProxy(proxy)) {
64 throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsProxy, options);
65 }
66 // Validate custom auth (if set)
67 validateCustomProxyAuth(proxy, options);
68 });
69 // Check timeout
70 if (options.timeout && !isValidTimeoutValue(options.timeout)) {
71 throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsTimeout, options);
72 }
73}
74exports.validateSocksClientChainOptions = validateSocksClientChainOptions;
75function validateCustomProxyAuth(proxy, options) {
76 if (proxy.custom_auth_method !== undefined) {
77 // Invalid auth method range
78 if (proxy.custom_auth_method < constants_1.SOCKS5_CUSTOM_AUTH_START ||
79 proxy.custom_auth_method > constants_1.SOCKS5_CUSTOM_AUTH_END) {
80 throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsCustomAuthRange, options);
81 }
82 // Missing custom_auth_request_handler
83 if (proxy.custom_auth_request_handler === undefined ||
84 typeof proxy.custom_auth_request_handler !== 'function') {
85 throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsCustomAuthOptions, options);
86 }
87 // Missing custom_auth_response_size
88 if (proxy.custom_auth_response_size === undefined) {
89 throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsCustomAuthOptions, options);
90 }
91 // Missing/invalid custom_auth_response_handler
92 if (proxy.custom_auth_response_handler === undefined ||
93 typeof proxy.custom_auth_response_handler !== 'function') {
94 throw new util_1.SocksClientError(constants_1.ERRORS.InvalidSocksClientOptionsCustomAuthOptions, options);
95 }
96 }
97}
98/**
99 * Validates a SocksRemoteHost
100 * @param remoteHost { SocksRemoteHost }
101 */
102function isValidSocksRemoteHost(remoteHost) {
103 return (remoteHost &&
104 typeof remoteHost.host === 'string' &&
105 typeof remoteHost.port === 'number' &&
106 remoteHost.port >= 0 &&
107 remoteHost.port <= 65535);
108}
109/**
110 * Validates a SocksProxy
111 * @param proxy { SocksProxy }
112 */
113function isValidSocksProxy(proxy) {
114 return (proxy &&
115 (typeof proxy.host === 'string' || typeof proxy.ipaddress === 'string') &&
116 typeof proxy.port === 'number' &&
117 proxy.port >= 0 &&
118 proxy.port <= 65535 &&
119 (proxy.type === 4 || proxy.type === 5));
120}
121/**
122 * Validates a timeout value.
123 * @param value { Number }
124 */
125function isValidTimeoutValue(value) {
126 return typeof value === 'number' && value > 0;
127}
128//# sourceMappingURL=helpers.js.map
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