diff options
Diffstat (limited to 'lib/inets/src/http_lib')
| -rw-r--r-- | lib/inets/src/http_lib/http_uri.erl | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/lib/inets/src/http_lib/http_uri.erl b/lib/inets/src/http_lib/http_uri.erl index 3804af60f4..b470fd0b46 100644 --- a/lib/inets/src/http_lib/http_uri.erl +++ b/lib/inets/src/http_lib/http_uri.erl @@ -21,7 +21,8 @@ -module(http_uri). -export([parse/1]). --export([parse/1, encode/1, decode/1]). +-export([encode/1, decode/1]). + %%%========================================================================= %%% API @@ -45,16 +46,33 @@ encode(URI) -> $\\, $', $^, $%, $ ]), lists:append(lists:map(fun(Char) -> uri_encode(Char, Reserved) end, URI)). -decode([$%,Hex1,Hex2|Rest]) -> - [hex2dec(Hex1)*16+hex2dec(Hex2)|decode(Rest)]; -decode([First|Rest]) -> - [First|decode(Rest)]; -decode([]) -> +decode(String) -> + try + begin + do_decode(String) + end + catch + throw:{bad_hex_value, _BadChar} -> + %% The string is either badly encoded or a string + %% containing a % followed by a non-hex char. + %% In any case, return as-is since there is nothing + %% we can do... + %% Note that the valid hex-chars are: 0-9, a-f and A-F. + String + end. + +do_decode([$%,Hex1,Hex2|Rest]) -> + [hex2dec(Hex1)*16+hex2dec(Hex2)|do_decode(Rest)]; +do_decode([First|Rest]) -> + [First|do_decode(Rest)]; +do_decode([]) -> []. + %%%======================================================================== %%% Internal functions %%%======================================================================== + parse_scheme(AbsURI) -> case split_uri(AbsURI, ":", {error, no_scheme}, 1, 1) of {error, no_scheme} -> @@ -138,4 +156,5 @@ uri_encode(Char, Reserved) -> hex2dec(X) when (X>=$0) andalso (X=<$9) -> X-$0; hex2dec(X) when (X>=$A) andalso (X=<$F) -> X-$A+10; -hex2dec(X) when (X>=$a) andalso (X=<$f) -> X-$a+10. +hex2dec(X) when (X>=$a) andalso (X=<$f) -> X-$a+10; +hex2dec(X) -> throw({bad_hex_value, X}). |