class http_fs :?config_pipeline:Nethttp_client.pipeline -> unit -> ?streaming:bool -> ?tmp_directory:string -> ?tmp_prefix:string -> ?path_encoding:Netconversion.encoding -> ?enable_read_for_directories:bool -> ?enable_ftp:bool -> string ->http_stream_fs
http_fs base_url: Accesses the HTTP file system rooted at
      base_url.
The following access methods are supported (compare with
      Netfs.stream_fs):
path_encoding: Returns the passed path_encoding. Paths
        are always encoded.path_exclusions: is just 0,0; 47,47nominal_dot_dot is trueread: is supported. All files are considered as binary.
        The `Skip flag works, and is translated to a Range header.write: is supported and translated to PUT. It is assumed
        that PUT truncates existing files, and creates new files.
        Note that errors are often first reported when the returned
        channel is closed!size: this works only if the server includes the Content-length
        header in responses to HEAD requests.test and test_list: The tests `N, `E, `D, `F, and `S
        should work. Files are never symlinks. `R is handled like `E,
        and `X is handled like `X (i.e. it is assumed that all 
        files are readable, and all directories can be entered). The
        `W test is never successful.remove: is translated to a DELETE request.readdir: works if index pages are generated (see above)There is no support for rename, symlink, mkdir, rmdir, and
      copy.
Options:
config_pipeline: one can enable further features on the pipeline
        object (e.g. authentication, proxies)streaming: if true, the read method only reads as much data
        from the HTTP connection as requested by the user. This assumes
        that the user does not pause stream accesses for longer periods
        as this would risk a server timeout. Also, there is no way for
        the client to automatically reconnect to the HTTP server after crashes.
        If false (the default),
        files are first downloaded to a temporary file before they are
        made accessible as in_obj_channel. Streaming can also be
        enabled for each read or write by including `Streaming
        in the list of flags.tmp_directory: directory for temporary filestmp_prefix: file prefix for temporary files (w/o directory)path_encoding: The encoding that is used for the file names.
        This must match the encoding the server assumes for translating
        file names to hyperlinks. Unfortunately, there is no way to
        query the server for this. The default, `Enc_utf8, seems to be the
        de-facto standard on the web (e.g. browsers use UTF-8 when
        non-ASCII characters are entered in the address line).enable_ftp: This enables anonymous FTP via web proxies. In
        this case the base_url is of the form ftp://host:port/path.
        This works only if the pipeline is configured to contact a
        web proxy understanding FTP URLs.