if "wsgi.input_terminated" in request.environ:
                app.logger.debug(
                    "environ wsgi.input_terminated already set, keeping: %s"
                    % request.environ["wsgi.input_terminated"]
                )
            else:
                request.environ["wsgi.input_terminated"] = 1
        else:
            abort(501, "Chunked requests are not supported for server %s" % server)


@app.after_request
def set_cors_headers(response):
    response.headers["Access-Control-Allow-Origin"] = request.headers.get("Origin", "*")
    response.headers["Access-Control-Allow-Credentials"] = "true"

    if request.method == "OPTIONS":
        # Both of these headers are only used for the "preflight request"
        # http://www.w3.org/TR/cors/#access-control-allow-methods-response-header
        response.headers[
            "Access-Control-Allow-Methods"
        ] = "GET, POST, PUT, DELETE, PATCH, OPTIONS"
        response.headers["Access-Control-Max-Age"] = "3600"  # 1 hour cache
        if request.headers.get("Access-Control-Request-Headers") is not None:
            response.headers["Access-Control-Allow-Headers"] = request.headers[
                "Access-Control-Request-Headers"
            ]
    return response


# ------
# Routes
# ------


@app.route("/legacy")
def view_landing_page():
    """Generates Landing Page in legacy layout."""
    return render_template("index.html")


@app.route("/html")
def view_html_page():
    """Returns a simple HTML document.
    ---
    tags:
      - Response formats
    produces:
      - text/html
    responses:
      200:
        description: An HTML page.
    """

    return render_template("moby.html")


@app.route("/robots.txt")
def view_robots_page():
    """Returns some robots.txt rules.
    ---
    tags:
      - Response formats
    produces:
      - text/plain
    responses:
      200:
        description: Robots file
    """

    response = make_response()
    response.data = ROBOT_TXT
    response.content_type = "text/plain"
    return response


@app.route("/deny")
def view_deny_page():
    """Returns page denied by robots.txt rules.
    ---
    tags:
      - Response formats
    produces:
      - text/plain
    responses:
      200:
        description: Denied message
    """
    response = make_response()
    response.data = ANGRY_ASCII
    response.content_type = "text/plain"
    return response
    # return "YOU SHOULDN'T BE HERE"


@app.route("/ip")
def view_origin():
    """Returns the requester's IP Address.
    ---
    tags:
      - Request inspection
    produces:
      - application/json
    responses:
      200:
        description: The Requester's IP Address.
    """

    return jsonify(origin=request.headers.get("X-Forwarded-For", request.remote_addr))


@app.route("/uuid")
def view_uuid():
    """Return a UUID4.
    ---
    tags:
      - Dynamic data
    produces:
      - application/json
    responses:
      200:
        description: A UUID4.
    """

    return jsonify(uuid=str(uuid.uuid4()))


@app.route("/headers")
def view_headers():
    """Return the incoming request's HTTP headers.
    ---
    tags:
      - Request inspection
    produces:
      - application/json
    responses:
      200:
        description: The request's headers.
    """

    return jsonify(get_dict('headers'))


@app.route("/user-agent")
def view_user_agent():
    """Return the incoming requests's User-Agent header.
    ---
    tags:
      - Request inspection
    produces:
      - application/json
    responses:
      200:
        description: The request's User-Agent header.
    """

    headers = get_headers()

    return jsonify({"user-agent": headers["user-agent"]})


@app.route("/get", methods=("GET",))
def view_get():
    """The request's query parameters.
    ---
    tags:
      - HTTP Methods
    produces:
      - application/json
    responses:
      200:
        description: The request's query parameters.
    """

    return jsonify(get_dict("url", "args", "headers", "origin"))


@app.route("/anything", methods=["GET", "POST", "PUT", "DELETE", "PATCH", "TRAC