mirror of
https://github.com/processone/ejabberd.git
synced 2024-09-29 14:37:44 +02:00
66 lines
1.5 KiB
Erlang
66 lines
1.5 KiB
Erlang
%% Author: Romuald du Song
|
|
%% Created: 9 oct. 2009
|
|
%% Description:
|
|
%% Hacked from Joe Armtrong http://www.erlang.org/examples/small_examples/urlget.erl
|
|
|
|
-module(url_util).
|
|
|
|
%%
|
|
%% Include files
|
|
%%
|
|
|
|
%%
|
|
%% Exported Functions
|
|
%%
|
|
-export([parse/1]).
|
|
|
|
%%
|
|
%% API Functions
|
|
%%
|
|
|
|
%%----------------------------------------------------------------------
|
|
%% parse(URL) -> {http, Site, Port, File} |
|
|
%% {file, File} | {error,Why}
|
|
%% (primitive)
|
|
|
|
parse([$h,$t,$t,$p,$:,$/,$/|T]) -> parse_http(T, http);
|
|
parse([$h,$t,$t,$p,$s,$:,$/,$/|T]) -> parse_http(T, https);
|
|
parse([$f,$t,$p,$:,$/,$/|_T]) -> {error, no_ftp};
|
|
parse([$f,$i,$l,$e,$:,$/,$/|F]) -> {file, F};
|
|
parse(_X) -> {error, unknown_url_type}.
|
|
|
|
|
|
%%
|
|
%% Local Functions
|
|
%%
|
|
|
|
parse_http(X, Protocol) ->
|
|
case string:chr(X, $/) of
|
|
0 ->
|
|
%% not terminated by "/" (sigh)
|
|
%% try again
|
|
parse_http(X ++ "/", Protocol);
|
|
N ->
|
|
%% The Host is up to the first "/"
|
|
%% The file is everything else
|
|
Host = string:substr(X, 1, N-1),
|
|
File = string:substr(X, N, length(X)),
|
|
%% Now check to see if the host name contains a colon
|
|
%% i.e. there is an explicit port address in the hostname
|
|
case string:chr(Host, $:) of
|
|
0 ->
|
|
%% no colon
|
|
Port = 80,
|
|
{Protocol, Host, Port, File};
|
|
M ->
|
|
Site = string:substr(Host,1,M-1),
|
|
case (catch list_to_integer(
|
|
string:substr(Host, M+1, length(Host)))) of
|
|
{'EXIT', _} ->
|
|
{Protocol, Site, 80, File};
|
|
Port ->
|
|
{Protocol, Site, Port, File}
|
|
end
|
|
end
|
|
end.
|