proxy-chain - npm Package Compare versions

Comparing version 0.1.27 to 0.1.28

build/anonymize_proxy.js

@@ -6,3 +6,3 @@ 'use strict';
 });
-exports.closeAnonymizedProxy = exports.anonymizeProxy = exports.ANONYMIZED_PROXY_PORTS = undefined;
+exports.closeAnonymizedProxy = exports.anonymizeProxy = undefined;
 
@@ -13,6 +13,2 @@ var _bluebird = require('bluebird');
 
-var _portastic = require('portastic');
-
-var _portastic2 = _interopRequireDefault(_portastic);
-
 var _server = require('./server');
@@ -27,25 +23,2 @@
 
-var ANONYMIZED_PROXY_PORTS = exports.ANONYMIZED_PROXY_PORTS = {
-    FROM: 20000,
-    TO: 60000,
-    RETRY_COUNT: 10
-};
-
-var _findFreePort = function _findFreePort() {
-    // Let 'min' be a random value in the first half of the PORT_FROM-PORT_TO range,
-    // to reduce a chance of collision if other ProxyChain is started at the same time.
-    var half = Math.floor((ANONYMIZED_PROXY_PORTS.TO - ANONYMIZED_PROXY_PORTS.FROM) / 2);
-
-    var opts = {
-        min: ANONYMIZED_PROXY_PORTS.FROM + Math.floor(Math.random() * half),
-        max: ANONYMIZED_PROXY_PORTS.TO,
-        retrieve: 1
-    };
-
-    return _portastic2.default.find(opts).then(function (ports) {
-        if (ports.length < 1) throw new Error('There are no more free ports in range from ' + ANONYMIZED_PROXY_PORTS.FROM + ' to ' + ANONYMIZED_PROXY_PORTS.TO); // eslint-disable-line max-len
-        return ports[0];
-    });
-};
-
 /**
@@ -78,3 +51,3 @@ * Parses and validates a HTTP proxy URL. If the proxy requires authentication, then the function
         return _bluebird2.default.resolve().then(function () {
-            return _findFreePort();
+            return (0, _tools.findFreePort)();
         }).then(function (result) {
@@ -104,3 +77,3 @@ port = result;
 
-    return startServer(ANONYMIZED_PROXY_PORTS.RETRY_COUNT).then(function () {
+    return startServer(_tools.PORT_SELECTION_CONFIG.RETRY_COUNT).then(function () {
         var url = 'http://127.0.0.1:' + port;
@@ -107,0 +80,0 @@ anonymizedProxyUrlToServer[url] = server;

build/index.js

@@ -9,2 +9,4 @@ 'use strict';
 
+var _tcp_tunnel = require('./tcp_tunnel');
+
 /* globals module */
@@ -20,5 +22,7 @@
     anonymizeProxy: _anonymize_proxy.anonymizeProxy,
-    closeAnonymizedProxy: _anonymize_proxy.closeAnonymizedProxy
+    closeAnonymizedProxy: _anonymize_proxy.closeAnonymizedProxy,
+    createTunnel: _tcp_tunnel.createTunnel,
+    closeTunnel: _tcp_tunnel.closeTunnel
 };
 
 module.exports = ProxyChain;

build/server.js

@@ -119,3 +119,3 @@ 'use strict';
      * If `prepareRequestFunction` is not set, the proxy server will not require any authentication
-     * and with not use any upstream proxy.
+     * and will not use any upstream proxy.
      * @param [options.authRealm] Realm used in the Proxy-Authenticate header and also in the 'Server' HTTP header. By default it's `ProxyChain`.
@@ -122,0 +122,0 @@ * @param [options.verbose] If true, the server logs

build/tools.js

@@ -6,3 +6,3 @@ 'use strict';
 });
-exports.addHeader = exports.parseProxyAuthorizationHeader = exports.redactParsedUrl = exports.redactUrl = exports.parseUrl = exports.isInvalidHeader = exports.isHopByHopHeader = exports.parseHostHeader = undefined;
+exports.findFreePort = exports.PORT_SELECTION_CONFIG = exports.addHeader = exports.parseProxyAuthorizationHeader = exports.redactParsedUrl = exports.redactUrl = exports.parseUrl = exports.isInvalidHeader = exports.isHopByHopHeader = exports.parseHostHeader = undefined;
 
@@ -15,5 +15,8 @@ var _url = require('url');
 
+var _portastic = require('portastic');
+
+var _portastic2 = _interopRequireDefault(_portastic);
+
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
-// eslint-disable-line
 // import through from 'through';
@@ -32,2 +35,3 @@
  */
+// eslint-disable-line
 var parseHostHeader = exports.parseHostHeader = function parseHostHeader(hostHeader) {
@@ -188,2 +192,25 @@ var matches = HOST_HEADER_REGEX.exec(hostHeader || '');
     }
+};
+
+var PORT_SELECTION_CONFIG = exports.PORT_SELECTION_CONFIG = {
+    FROM: 20000,
+    TO: 60000,
+    RETRY_COUNT: 10
+};
+
+var findFreePort = exports.findFreePort = function findFreePort() {
+    // Let 'min' be a random value in the first half of the PORT_FROM-PORT_TO range,
+    // to reduce a chance of collision if other ProxyChain is started at the same time.
+    var half = Math.floor((PORT_SELECTION_CONFIG.TO - PORT_SELECTION_CONFIG.FROM) / 2);
+
+    var opts = {
+        min: PORT_SELECTION_CONFIG.FROM + Math.floor(Math.random() * half),
+        max: PORT_SELECTION_CONFIG.TO,
+        retrieve: 1
+    };
+
+    return _portastic2.default.find(opts).then(function (ports) {
+        if (ports.length < 1) throw new Error('There are no more free ports in range from ' + PORT_SELECTION_CONFIG.FROM + ' to ' + PORT_SELECTION_CONFIG.TO); // eslint-disable-line max-len
+        return ports[0];
+    });
 };

CHANGELOG.md

@@ -0,1 +1,5 @@
+0.1.27 / 2018-03-27
+===================
+- Added option to create tunnels through http proxies for tcp network connections (eq. connection to mongodb/sql database through http proxy)
+
 0.1.27 / 2018-03-05
@@ -2,0 +6,0 @@ ===================

package.json

 {
   "name": "proxy-chain",
-  "version": "0.1.27",
+  "version": "0.1.28",
   "description": "Node.js implementation of a proxy server (think Squid) with support for SSL, authentication and upstream proxy chaining.",
@@ -5,0 +5,0 @@ "main": "build/index.js",

README.md

@@ -116,3 +116,29 @@ # proxy-chain
 
+### `createTunnel(proxyUrl, target, options, callback)`
 
+Attempts to create a network tunnel through proxy server specified in param "proxyUrl" to a network service
+specified in param "target".
+
+The function takes optional callback that receives the path to local service.
+If no callback is supplied, the function returns a promise that resolves to a String with
+the path to local service.
+
+Example usage:
+
+```javascript
+const tunnel = await createTunnel('http://<username>:<password>@<proxy-server>:<port>', '<service-host>:<service-port>');
+// tunnel will be in format "localhost:<randomly-assigned-port>" and while it's running
+// it can be used instead of '<service-host>:<service-port>' to proxy requests.
+```
+
+### `closeTunnel(tunnelString, closeConnections, callback)`
+
+Closes tunnel previously started by `createTunnel()`.
+Returns false if tunnel is not found or running. Otherwise the result is `true`.
+
+The `closeConnections` parameter indicates whether pending connections are forcibly closed.
+
+The function takes optional callback that receives the result Boolean from the function.
+If callback is not provided, the function returns a promise instead.
+
 ### `parseUrl(url)`
@@ -119,0 +145,0 @@

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Improved metrics

Total package byte prevSize

105737

increased by20.6%

Number of package files

16

increased by23.08%

Lines of code

1692

increased by27.79%

Number of lines in readme file

159

increased by19.55%

Worsened metrics

Number of medium supply chain risk alerts

9

increased by50%

No dependency changes