THE NULL POINTER
================
{% set fhost_url = url_for("fhost", _external=True).rstrip("/") %}
HTTP POST files here:
    curl -F'file=@yourfile.png' {{ fhost_url }}
You can also POST remote URLs:
    curl -F'url=http://example.com/image.jpg' {{ fhost_url }}
Or you can shorten URLs:
    curl -F'shorten=http://example.com/some/long/url' {{ fhost_url }}

File URLs are valid for at least 30 days and up to a year (see below).
Shortened URLs do not expire.
{% set max_size = config["MAX_CONTENT_LENGTH"]|filesizeformat(True) %}
Maximum file size: {{ max_size }}
Not allowed: {{ config["FHOST_MIME_BLACKLIST"]|join(", ") }}


FILE RETENTION PERIOD
---------------------

retention = min_age + (-max_age + min_age) * pow((file_size / max_size - 1), 3)

   days
    365 |  \\
        |   \\
        |    \\
        |     \\
        |      \\
        |       \\
        |        ..
        |          \\
  197.5 | ----------..-------------------------------------------
        |             ..
        |               \\
        |                ..
        |                  ...
        |                     ..
        |                       ...
        |                          ....
        |                              ......
     30 |                                    ....................
          0{{ ((config["MAX_CONTENT_LENGTH"]/2)|filesizeformat(True)).split(" ")[0].rjust(27) }}{{ max_size.split(" ")[0].rjust(27) }}
           {{ max_size.split(" ")[1].rjust(54) }}