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README.md

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Mirror HTTP Server Build Status DockerHub

A dummy HTTP server that responds whatever you told him to.

Build to play with HTTP or test your API. Make a HTTP call to the dummy server with the specified headers you want the server responds with.

Usage

Pull the Docker container:

$ docker pull eexit/mirror-http-server

Start the container:

$ docker run -itp 80:80 eexit/mirror-http-server
2015-11-05T20:59:57.353Z]  INFO: mirror-http-server/17 on ccc867df5980: Listening on http://0.0.0.0:80

For this README examples, I use the great HTTPie tool.

Send request againt it:

http $(docker-machine ip default)
HTTP/1.1 200 OK
Connection: keep-alive
Content-Length: 0
Date: Thu, 05 Nov 2015 21:33:20 GMT
X-Powered-By: Express

You can use any HTTP verbs with any path, any request body and any header.

Server behavioural request headers

You can change the server response code and body by setting specific X-Mirror-* headers to your request.

X-Mirror-Code

Change the server response status code. Here, simulate a server error:

$ http $(docker-machine ip default) X-Mirror-Code:503
HTTP/1.1 503 Service Unavailable
Connection: keep-alive
Content-Length: 0
Date: Thu, 05 Nov 2015 22:30:11 GMT
X-Powered-By: Express

Here, simulates a 301 redirection and a Content-Type change:

http $(docker-machine ip default) \
    X-Mirror-Code:301 \
    X-Mirror-Location:http://www.eexit.net \
    X-Mirror-Content-Type:"text/plain; charset=ISO-8859-1"
HTTP/1.1 301 Moved Permanently
Connection: keep-alive
Content-Length: 0
Content-Type: text/plain; charset=ISO-8859-1
Date: Thu, 05 Nov 2015 22:40:02 GMT
Location: http://www.eexit.net
X-Powered-By: Express

If you add the --follow option, it will output my website HTML source.

If you check the container logs:

[2015-11-05T22:48:59.564Z]  INFO: mirror-http-server/18 on 6cb74ed853b0:
    request: {
      "ip": "192.168.99.1",
      "ips": [],
      "method": "GET",
      "url": "/",
      "headers": {
        "host": "192.168.99.100",
        "x-mirror-code": "301",
        "accept-encoding": "gzip, deflate",
        "x-mirror-location": "http://www.eexit.net",
        "accept": "*/*",
        "user-agent": "HTTPie/0.9.2",
        "connection": "keep-alive",
        "x-mirror-content-type": "text/plain; charset=ISO-8859-1"
      },
      "body": {}
    }

X-Mirror-Request

If you can't access to the container log or want to exploit what's logged under the hood, set the X-Mirror-Request to receive the logged entry (as JSON):

$ http POST $(docker-machine ip default)/resource \
    X-Mirror-Code:201 \
    X-Mirror-Request:true \
    key1=value1 key2=value2
HTTP/1.1 201 Created
Connection: keep-alive
Content-Length: 373
Content-Type: application/json; charset=utf-8
Date: Thu, 05 Nov 2015 22:57:17 GMT
ETag: W/"175-3rxm7gM5Zwu88cZOABP92A"
X-Powered-By: Express

{
    "request": {
        "body": {
            "key1": "value1",
            "key2": "value2"
        },
        "headers": {
            "accept": "application/json",
            "accept-encoding": "gzip, deflate",
            "connection": "keep-alive",
            "content-length": "36",
            "content-type": "application/json",
            "host": "192.168.99.100",
            "user-agent": "HTTPie/0.9.2",
            "x-mirror-code": "201",
            "x-mirror-request": "true"
        },
        "ip": "192.168.99.1",
        "ips": [],
        "method": "POST",
        "url": "/resource"
    }
}

Note: if you don't specify the true value for the header, it'll ignored.

X-Mirror-Body

Instead, if you wish the dummy server to return you the body you sent to it, set the X-Mirror-Body header.

Note: the X-Mirror-Request header will override X-Mirror-Body header.

$ http PUT $(docker-machine ip default)/resource \
    X-Mirror-Code:400 \
    X-Mirror-Body:true \
    key1=value1 key2=value2
HTTP/1.1 400 Bad Request
Connection: keep-alive
Content-Length: 33
Content-Type: application/json; charset=utf-8
Date: Thu, 05 Nov 2015 23:52:34 GMT
ETag: W/"21-/0XMODUWUwfvQUwjyixvZw"
X-Powered-By: Express

{
    "key1": "value1",
    "key2": "value2"
}

Note: if you don't specify the true value for the header, it'll ignored.

Works for all headers

Aside to the previous three special headers, you can set your wanted response header by prepending your header name by X-Mirror-.

In the request:

Content-Type: application/json
X-Mirror-Content-Type: text/html

You'll get in your response:

Content-Type: text/html

You can even override Express headers or any other default header:

X-Mirror-X-Powered-By: eexit-engine
X-Mirror-Date: some date

Will turn into:

X-Powered-By: eexit-engine
Date: some date

Todo

  • Functional testing