GoProxy

GoProxy is a simple HTTP web proxy.

Installation

GoProxy can be installed by compiling from source. In order to be able to install GoProxy you must have golang installed with your enviroment setup and GOPATH configured correctly. You can download the latest version of Go here.

Install with wget

wget --no-check-certificate https://raw.github.com/dr4ke616/GoProxy/master/scripts/install -O - | bash

With curl

curl -L https://raw.github.com/dr4ke616/GoProxy/master/scripts/install | bash

Start / Stop / Restart

• To start GoProxy run sudo /etc/init.d/goproxy start
• To stop GoProxy run sudo /etc/init.d/goproxy stop
• To restart GoProxy run sudo /etc/init.d/goproxy restart
• To check the status of GoProxy run sudo /etc/init.d/goproxy status

Config

After installation is complete there will be a config file in /etc/goproxy/config.json.

Default

The default config file will as follows:

{
    "log_file": "/var/log/goproxy.log",
    "listening_port": "8088",
    "target_url": "http://stackoverflow.com",
    "SSL": {
        "active": false,
        "key_file": "<PATH_TO_KEY>",
        "cert_file": "<PATH_TO_CERT>",
        "listening_port": "8099"
    },
    "routing_options": []
}

Set the target_url to any destination host you'd like. Then browse to http://localhost:8088 to see if it works.

Static Routing Options

GoProxy also supports some custom routing options. You can alter the method types by adding a json object to the routing_optionsarray and setting the values:

{
    "log_file": "/var/log/goproxy.log",
    "listening_port": "8088",
    "target_url": "http://stackoverflow.com",
    "SSL": {
        "active": false,
        "key_file": "<PATH_TO_KEY>",
        "cert_file": "<PATH_TO_CERT>",
        "listening_port": "8099"
    },
    "routing_options": [
        {
            "uri": "/some-endpoint/",
            "to_method": "POST",
            "copy_paramaters": false,
            "custom_headers": []
        }
    ]
}

Go Proxy will also try to edit the headers in the request and the response to the proxied host. Specify the rules by adding a json object to the custom_headersarray and setting the values:

{
    "log_file": "/var/log/goproxy.log",
    "listening_port": "8088",
    "target_url": "http://stackoverflow.com",
    "SSL": {
        "active": false,
        "key_file": "<PATH_TO_KEY>",
        "cert_file": "<PATH_TO_CERT>",
        "listening_port": "8099"
    },
    "routing_options": [
        {
            "uri": "/some-endpoint/",
            "to_method": "POST",
            "copy_paramaters": true,
            "custom_headers": [
                {
                    "replace": false,
                    "header_key": "Content-Type",
                    "header_values": ["application/json", "application/xml"]
                }
            ]
        },
    ]
}

The replace boolean when set to false will append on the values specified in the header_values array to the header key specified in header_key value. When the replace boolean is set to true it will overwrite any headers that may be set for the header_key value.

For example, say the target host has a header of Content-Type: text/plain. When replace is set to false, GoProxy will try represent the headers as Content-Type: text/plain, application/json, application/xml. If replace is set to truethe headers will appear as Content-Type: application/json, application/xml, (removing the text/plain value).

If copy_paramaters was set to true GoProxy will try create a request body from any data encoded onto the url based on the Content-Type. At the moment only application/json and application/x-www-form-urlencoded is supported. For example:

If we have the URL http://host/query?foo=bar&num=1&is_true=true&copy=str1&copy=str2

If application/json was set as the Content-Type, this will build the following json:

{
    "foo": "bar",
    "num": 1,
    "is_true": true,
    "copy": ["str1", "str2"],
}

If application/x-www-form-urlencoded was set as the Content-Type, the body will be set as the following:

foo=bar&num=1&is_true=true&copy=str1&copy=str2

SSL

GoProxy supports incomeing requests over HTTPS, just specify it in the config.

{
    "log_file": "/var/log/goproxy.log",
    "listening_port": "8088",
    "target_url": "http://stackoverflow.com",
    "SSL": {
        "active": true,
        "key_file": "server.key",
        "cert_file": "server.crt",
        "listening_port": "8099"
    },
    "routing_options": []
}

Just set the active flag to true and specify a path to the key and cert file.

Logs

If you wish to view GoProxy's log, the logs can be found at /var/log/goproxy.log. The logs location can be changed in the config file by setting the log_file value.

Tests

If you wish to run the tests use the makefile provided by running make test

TODO

• Copy Paramaters to support application/xml
• Dynamic routing options over URL