http_uri

Module

http_uri

Module Summary

URI utility module

Since

Module http_uri was introduced in OTP R15B01.

Description

This module provides utility functions for working with URIs, according to RFC 3986.

DATA TYPES

Type definitions that are used more than once in this module:

boolean() = true | false

string() = list of ASCII characters

URI DATA TYPES

Type definitions that are related to URI:

uri() = string() | binary(): Syntax according to the URI definition in RFC 3986, for example, "http://www.erlang.org/"
user_info() = string() | binary()
scheme() = atom(): Example: http, https
host() = string() | binary()
port() = inet:port_number()
path() = string() | binary(): Represents a file path or directory path
query() = string() | binary()
fragment() = string() | binary()

For more information about URI, see RFC 3986.

Exports

decode(HexEncodedURI) -> URI

OTP R15B01

Types

HexEncodedURI = string() | binary() - A possibly hexadecimal encoded URI

URI = uri()

Decodes a possibly hexadecimal encoded URI.

encode(URI) -> HexEncodedURI

OTP R15B01

Types

URI = uri()

HexEncodedURI = string() | binary() - Hexadecimal encoded URI

Encodes a hexadecimal encoded URI.

parse(URI) -> {ok, Result} | {error, Reason}

OTP R15B01

parse(URI, Options) -> {ok, Result} | {error, Reason}

OTP R15B01

Types

URI = uri()

Options = [Option]

Option = {ipv6_host_with_brackets, boolean()} | {scheme_defaults, scheme_defaults()} | {fragment, boolean()} | {scheme_validation_fun, fun()}

Result = {Scheme, UserInfo, Host, Port, Path, Query} | {Scheme, UserInfo, Host, Port, Path, Query, Fragment}

Scheme = scheme()

UserInfo = user_info()

Host = host()

Port = inet:port_number()

Path = path()

Query = query()

Fragment = fragment()

Reason = term()

Parses a URI. If no scheme defaults are provided, the value of the scheme_defaults function is used.

When parsing a URI with an unknown scheme (that is, a scheme not found in the scheme defaults), a port number must be provided, otherwise the parsing fails.

If the fragment option is true, the URI fragment is returned as part of the parsing result, otherwise it is ignored.

Scheme validation fun is to be defined as follows:

fun(SchemeStr :: string() | binary()) ->
	valid |	{error, Reason :: term()}.

It is called before scheme string gets converted into scheme atom and thus possible atom leak could be prevented

Warning

The scheme portion of the URI gets converted into atom, meaning that atom leak may occur. Specifying a scheme validation fun is recommended unless the URI is already sanitized.

scheme_defaults() -> SchemeDefaults

OTP R15B01

Types

SchemeDefaults = [{scheme(), default_scheme_port_number()}]

default_scheme_port_number() = inet:port_number()

Provides a list of the scheme and their default port numbers supported (by default) by this utility.

Table of Contents

http_uri

Module

Module Summary

Since

Description

DATA TYPES

URI DATA TYPES

Exports

Types

Types

Types

Types