|
@@ -1,315 +0,0 @@
|
|
|
--module(oauth).
|
|
|
-
|
|
|
--export([get/3, get/5, get/6, post/3, post/5, post/6, put/6, put/7, uri/2, header/1,
|
|
|
- sign/6, params_decode/1, token/1, token_secret/1, verify/6]).
|
|
|
-
|
|
|
--export([plaintext_signature/2, hmac_sha1_signature/5,
|
|
|
- hmac_sha1_signature/3, rsa_sha1_signature/4, rsa_sha1_signature/2,
|
|
|
- signature_base_string/3, params_encode/1]).
|
|
|
-
|
|
|
--export([plaintext_verify/3, hmac_sha1_verify/6, hmac_sha1_verify/4,
|
|
|
- rsa_sha1_verify/5, rsa_sha1_verify/3]).
|
|
|
-
|
|
|
--export([header_params_encode/1, header_params_decode/1,
|
|
|
- uri_params_encode/1, uri_params_decode/1]).
|
|
|
-
|
|
|
--include_lib("public_key/include/public_key.hrl").
|
|
|
-
|
|
|
-get(URL, ExtraParams, Consumer) ->
|
|
|
- get(URL, ExtraParams, Consumer, "", "").
|
|
|
-
|
|
|
-get(URL, ExtraParams, Consumer, Token, TokenSecret) ->
|
|
|
- get(URL, ExtraParams, Consumer, Token, TokenSecret, []).
|
|
|
-
|
|
|
-get(URL, ExtraParams, Consumer, Token, TokenSecret, HttpcOptions) ->
|
|
|
- SignedParams = sign("GET", URL, ExtraParams, Consumer, Token, TokenSecret),
|
|
|
- http_request(get, {uri(URL, SignedParams), []}, HttpcOptions).
|
|
|
-
|
|
|
-post(URL, ExtraParams, Consumer) ->
|
|
|
- post(URL, ExtraParams, Consumer, "", "").
|
|
|
-
|
|
|
-post(URL, ExtraParams, Consumer, Token, TokenSecret) ->
|
|
|
- post(URL, ExtraParams, Consumer, Token, TokenSecret, []).
|
|
|
-
|
|
|
-post(URL, ExtraParams, Consumer, Token, TokenSecret, HttpcOptions) ->
|
|
|
- SignedParams = sign("POST", URL, ExtraParams, Consumer, Token, TokenSecret),
|
|
|
- http_request(post, {URL, [], "application/x-www-form-urlencoded", uri_params_encode(SignedParams)}, HttpcOptions).
|
|
|
-
|
|
|
-put(URL, ExtraParams, {ContentType, Body}, Consumer, Token, TokenSecret) ->
|
|
|
- put(URL, ExtraParams, {ContentType, Body}, Consumer, Token, TokenSecret, []).
|
|
|
-
|
|
|
-put(URL, ExtraParams, {ContentType, Body}, Consumer, Token, TokenSecret, HttpcOptions) ->
|
|
|
- SignedParams = sign("PUT", URL, ExtraParams, Consumer, Token, TokenSecret),
|
|
|
- http_request(put, {uri(URL, SignedParams), [], ContentType, Body}, HttpcOptions).
|
|
|
-
|
|
|
-uri(Base, []) ->
|
|
|
- Base;
|
|
|
-uri(Base, Params) ->
|
|
|
- lists:concat([Base, "?", uri_params_encode(Params)]).
|
|
|
-
|
|
|
-header(Params) ->
|
|
|
- {"Authorization", "OAuth " ++ header_params_encode(Params)}.
|
|
|
-
|
|
|
-token(Params) ->
|
|
|
- proplists:get_value("oauth_token", Params).
|
|
|
-
|
|
|
-token_secret(Params) ->
|
|
|
- proplists:get_value("oauth_token_secret", Params).
|
|
|
-
|
|
|
-consumer_key(_Consumer={Key, _, _}) ->
|
|
|
- Key.
|
|
|
-
|
|
|
-consumer_secret(_Consumer={_, Secret, _}) ->
|
|
|
- Secret.
|
|
|
-
|
|
|
-signature_method(_Consumer={_, _, Method}) ->
|
|
|
- Method.
|
|
|
-
|
|
|
-sign(HttpMethod, URL, Params, Consumer, Token, TokenSecret) ->
|
|
|
- SignatureParams = signature_params(Consumer, Params, Token),
|
|
|
- Signature = signature(HttpMethod, URL, SignatureParams, Consumer, TokenSecret),
|
|
|
- [{"oauth_signature", Signature} | SignatureParams].
|
|
|
-
|
|
|
-signature_params(Consumer, Params, "") ->
|
|
|
- signature_params(Consumer, Params);
|
|
|
-signature_params(Consumer, Params, Token) ->
|
|
|
- signature_params(Consumer, [{"oauth_token", Token} | Params]).
|
|
|
-
|
|
|
-signature_params(Consumer, Params) ->
|
|
|
- Timestamp = unix_timestamp(),
|
|
|
- Nonce = base64:encode_to_string(crypto:rand_bytes(32)), % cf. ruby-oauth
|
|
|
- [ {"oauth_version", "1.0"}
|
|
|
- , {"oauth_nonce", Nonce}
|
|
|
- , {"oauth_timestamp", integer_to_list(Timestamp)}
|
|
|
- , {"oauth_signature_method", signature_method_string(Consumer)}
|
|
|
- , {"oauth_consumer_key", consumer_key(Consumer)}
|
|
|
- | Params
|
|
|
- ].
|
|
|
-
|
|
|
-verify(Signature, HttpMethod, URL, Params, Consumer, TokenSecret) ->
|
|
|
- case signature_method(Consumer) of
|
|
|
- plaintext ->
|
|
|
- plaintext_verify(Signature, Consumer, TokenSecret);
|
|
|
- hmac_sha1 ->
|
|
|
- hmac_sha1_verify(Signature, HttpMethod, URL, Params, Consumer, TokenSecret);
|
|
|
- rsa_sha1 ->
|
|
|
- rsa_sha1_verify(Signature, HttpMethod, URL, Params, Consumer)
|
|
|
- end.
|
|
|
-
|
|
|
-signature(HttpMethod, URL, Params, Consumer, TokenSecret) ->
|
|
|
- case signature_method(Consumer) of
|
|
|
- plaintext ->
|
|
|
- plaintext_signature(Consumer, TokenSecret);
|
|
|
- hmac_sha1 ->
|
|
|
- hmac_sha1_signature(HttpMethod, URL, Params, Consumer, TokenSecret);
|
|
|
- rsa_sha1 ->
|
|
|
- rsa_sha1_signature(HttpMethod, URL, Params, Consumer)
|
|
|
- end.
|
|
|
-
|
|
|
-signature_method_string(Consumer) ->
|
|
|
- case signature_method(Consumer) of
|
|
|
- plaintext ->
|
|
|
- "PLAINTEXT";
|
|
|
- hmac_sha1 ->
|
|
|
- "HMAC-SHA1";
|
|
|
- rsa_sha1 ->
|
|
|
- "RSA-SHA1"
|
|
|
- end.
|
|
|
-
|
|
|
-plaintext_signature(Consumer, TokenSecret) ->
|
|
|
- uri_join([consumer_secret(Consumer), TokenSecret]).
|
|
|
-
|
|
|
-plaintext_verify(Signature, Consumer, TokenSecret) ->
|
|
|
- verify_in_constant_time(Signature, plaintext_signature(Consumer, TokenSecret)).
|
|
|
-
|
|
|
-hmac_sha1_signature(HttpMethod, URL, Params, Consumer, TokenSecret) ->
|
|
|
- BaseString = signature_base_string(HttpMethod, URL, Params),
|
|
|
- hmac_sha1_signature(BaseString, Consumer, TokenSecret).
|
|
|
-
|
|
|
-hmac_sha1_signature(BaseString, Consumer, TokenSecret) ->
|
|
|
- Key = uri_join([consumer_secret(Consumer), TokenSecret]),
|
|
|
- base64:encode_to_string(crypto:hmac(sha256, Key, BaseString)).
|
|
|
-
|
|
|
-hmac_sha1_verify(Signature, HttpMethod, URL, Params, Consumer, TokenSecret) ->
|
|
|
- verify_in_constant_time(Signature, hmac_sha1_signature(HttpMethod, URL, Params, Consumer, TokenSecret)).
|
|
|
-
|
|
|
-hmac_sha1_verify(Signature, BaseString, Consumer, TokenSecret) ->
|
|
|
- verify_in_constant_time(Signature, hmac_sha1_signature(BaseString, Consumer, TokenSecret)).
|
|
|
-
|
|
|
-rsa_sha1_signature(HttpMethod, URL, Params, Consumer) ->
|
|
|
- BaseString = signature_base_string(HttpMethod, URL, Params),
|
|
|
- rsa_sha1_signature(BaseString, Consumer).
|
|
|
-
|
|
|
-rsa_sha1_signature(BaseString, Consumer) ->
|
|
|
- Key = read_private_key(consumer_secret(Consumer)),
|
|
|
- base64:encode_to_string(public_key:sign(list_to_binary(BaseString), sha, Key)).
|
|
|
-
|
|
|
-rsa_sha1_verify(Signature, HttpMethod, URL, Params, Consumer) ->
|
|
|
- BaseString = signature_base_string(HttpMethod, URL, Params),
|
|
|
- rsa_sha1_verify(Signature, BaseString, Consumer).
|
|
|
-
|
|
|
-rsa_sha1_verify(Signature, BaseString, Consumer) ->
|
|
|
- Key = read_cert_key(consumer_secret(Consumer)),
|
|
|
- public_key:verify(to_binary(BaseString), sha, base64:decode(Signature), Key).
|
|
|
-
|
|
|
-verify_in_constant_time(<<X/binary>>, <<Y/binary>>) ->
|
|
|
- verify_in_constant_time(binary_to_list(X), binary_to_list(Y));
|
|
|
-verify_in_constant_time(X, Y) when is_list(X) and is_list(Y) ->
|
|
|
- case length(X) == length(Y) of
|
|
|
- true ->
|
|
|
- verify_in_constant_time(X, Y, 0);
|
|
|
- false ->
|
|
|
- false
|
|
|
- end.
|
|
|
-
|
|
|
-verify_in_constant_time([X | RestX], [Y | RestY], Result) ->
|
|
|
- verify_in_constant_time(RestX, RestY, (X bxor Y) bor Result);
|
|
|
-verify_in_constant_time([], [], Result) ->
|
|
|
- Result == 0.
|
|
|
-
|
|
|
-signature_base_string(HttpMethod, URL, Params) ->
|
|
|
- uri_join([HttpMethod, uri_normalize(URL), params_encode(Params)]).
|
|
|
-
|
|
|
-params_encode(Params) ->
|
|
|
- % cf. http://tools.ietf.org/html/rfc5849#section-3.4.1.3.2
|
|
|
- Encoded = [{uri_encode(K), uri_encode(V)} || {K, V} <- Params],
|
|
|
- Sorted = lists:sort(Encoded),
|
|
|
- Concatenated = [lists:concat([K, "=", V]) || {K, V} <- Sorted],
|
|
|
- string:join(Concatenated, "&").
|
|
|
-
|
|
|
-params_decode(_Response={{_, _, _}, _, Body}) ->
|
|
|
- uri_params_decode(Body).
|
|
|
-
|
|
|
-http_request(Method, Request, Options) ->
|
|
|
- httpc:request(Method, Request, [{autoredirect, false}], Options).
|
|
|
-
|
|
|
-unix_timestamp() ->
|
|
|
- unix_timestamp(calendar:universal_time()).
|
|
|
-
|
|
|
-unix_timestamp(DateTime) ->
|
|
|
- unix_seconds(DateTime) - unix_epoch().
|
|
|
-
|
|
|
-unix_epoch() ->
|
|
|
- unix_seconds({{1970,1,1},{00,00,00}}).
|
|
|
-
|
|
|
-unix_seconds(DateTime) ->
|
|
|
- calendar:datetime_to_gregorian_seconds(DateTime).
|
|
|
-
|
|
|
-read_cert_key(Path) when is_list(Path) ->
|
|
|
- {ok, Contents} = file:read_file(Path),
|
|
|
- [{'Certificate', DerCert, not_encrypted}] = public_key:pem_decode(Contents),
|
|
|
- read_cert_key(public_key:pkix_decode_cert(DerCert, otp));
|
|
|
-read_cert_key(#'OTPCertificate'{tbsCertificate=Cert}) ->
|
|
|
- read_cert_key(Cert);
|
|
|
-read_cert_key(#'OTPTBSCertificate'{subjectPublicKeyInfo=Info}) ->
|
|
|
- read_cert_key(Info);
|
|
|
-read_cert_key(#'OTPSubjectPublicKeyInfo'{subjectPublicKey=Key}) ->
|
|
|
- Key.
|
|
|
-
|
|
|
-read_private_key(Path) ->
|
|
|
- {ok, Contents} = file:read_file(Path),
|
|
|
- [Info] = public_key:pem_decode(Contents),
|
|
|
- public_key:pem_entry_decode(Info).
|
|
|
-
|
|
|
-to_binary(Term) when is_list(Term) ->
|
|
|
- list_to_binary(Term);
|
|
|
-to_binary(Term) when is_binary(Term) ->
|
|
|
- Term.
|
|
|
-
|
|
|
-header_params_encode(Params) ->
|
|
|
- intercalate(", ", [lists:concat([uri_encode(K), "=\"", uri_encode(V), "\""]) || {K, V} <- Params]).
|
|
|
-
|
|
|
-header_params_decode(String) ->
|
|
|
- [header_param_decode(Param) || Param <- re:split(String, ",\\s*", [{return, list}]), Param =/= ""].
|
|
|
-
|
|
|
-header_param_decode(Param) ->
|
|
|
- [Key, QuotedValue] = string:tokens(Param, "="),
|
|
|
- Value = string:substr(QuotedValue, 2, length(QuotedValue) - 2),
|
|
|
- {uri_decode(Key), uri_decode(Value)}.
|
|
|
-
|
|
|
-uri_normalize(URI) ->
|
|
|
- case http_uri:parse(URI) of
|
|
|
- {ok, {Scheme, UserInfo, Host, Port, Path, _Query}} -> % R15B
|
|
|
- uri_normalize(Scheme, UserInfo, string:to_lower(Host), Port, [Path]);
|
|
|
- {Scheme, UserInfo, Host, Port, Path, _Query} ->
|
|
|
- uri_normalize(Scheme, UserInfo, string:to_lower(Host), Port, [Path]);
|
|
|
- Else ->
|
|
|
- Else
|
|
|
- end.
|
|
|
-
|
|
|
-uri_normalize(http, UserInfo, Host, 80, Acc) ->
|
|
|
- uri_normalize(http, UserInfo, [Host|Acc]);
|
|
|
-uri_normalize(https, UserInfo, Host, 443, Acc) ->
|
|
|
- uri_normalize(https, UserInfo, [Host|Acc]);
|
|
|
-uri_normalize(Scheme, UserInfo, Host, Port, Acc) ->
|
|
|
- uri_normalize(Scheme, UserInfo, [Host, ":", Port|Acc]).
|
|
|
-
|
|
|
-uri_normalize(Scheme, [], Acc) ->
|
|
|
- lists:concat([Scheme, "://" | Acc]);
|
|
|
-uri_normalize(Scheme, UserInfo, Acc) ->
|
|
|
- lists:concat([Scheme, "://", UserInfo, "@" | Acc]).
|
|
|
-
|
|
|
-uri_params_encode(Params) ->
|
|
|
- intercalate("&", [uri_join([K, V], "=") || {K, V} <- Params]).
|
|
|
-
|
|
|
-uri_params_decode(String) ->
|
|
|
- [uri_param_decode(Substring) || Substring <- string:tokens(String, "&")].
|
|
|
-
|
|
|
-uri_param_decode(String) ->
|
|
|
- [Key, Value] = string:tokens(String, "="),
|
|
|
- {uri_decode(Key), uri_decode(Value)}.
|
|
|
-
|
|
|
-uri_join(Values) ->
|
|
|
- uri_join(Values, "&").
|
|
|
-
|
|
|
-uri_join(Values, Separator) ->
|
|
|
- string:join([uri_encode(Value) || Value <- Values], Separator).
|
|
|
-
|
|
|
-intercalate(Sep, Xs) ->
|
|
|
- lists:concat(intersperse(Sep, Xs)).
|
|
|
-
|
|
|
-intersperse(_, []) ->
|
|
|
- [];
|
|
|
-intersperse(_, [X]) ->
|
|
|
- [X];
|
|
|
-intersperse(Sep, [X | Xs]) ->
|
|
|
- [X, Sep | intersperse(Sep, Xs)].
|
|
|
-
|
|
|
-uri_encode(Term) when is_integer(Term) ->
|
|
|
- integer_to_list(Term);
|
|
|
-uri_encode(Term) when is_atom(Term) ->
|
|
|
- uri_encode(atom_to_list(Term));
|
|
|
-uri_encode(Term) when is_list(Term) ->
|
|
|
- uri_encode(lists:reverse(Term, []), []).
|
|
|
-
|
|
|
--define(is_alphanum(C), C >= $A, C =< $Z; C >= $a, C =< $z; C >= $0, C =< $9).
|
|
|
-
|
|
|
-uri_encode([X | T], Acc) when ?is_alphanum(X); X =:= $-; X =:= $_; X =:= $.; X =:= $~ ->
|
|
|
- uri_encode(T, [X | Acc]);
|
|
|
-uri_encode([X | T], Acc) ->
|
|
|
- NewAcc = [$%, dec2hex(X bsr 4), dec2hex(X band 16#0f) | Acc],
|
|
|
- uri_encode(T, NewAcc);
|
|
|
-uri_encode([], Acc) ->
|
|
|
- Acc.
|
|
|
-
|
|
|
-uri_decode(Str) when is_list(Str) ->
|
|
|
- uri_decode(Str, []).
|
|
|
-
|
|
|
-uri_decode([$%, A, B | T], Acc) ->
|
|
|
- uri_decode(T, [(hex2dec(A) bsl 4) + hex2dec(B) | Acc]);
|
|
|
-uri_decode([X | T], Acc) ->
|
|
|
- uri_decode(T, [X | Acc]);
|
|
|
-uri_decode([], Acc) ->
|
|
|
- lists:reverse(Acc, []).
|
|
|
-
|
|
|
--compile({inline, [{dec2hex, 1}, {hex2dec, 1}]}).
|
|
|
-
|
|
|
-dec2hex(N) when N >= 10 andalso N =< 15 ->
|
|
|
- N + $A - 10;
|
|
|
-dec2hex(N) when N >= 0 andalso N =< 9 ->
|
|
|
- N + $0.
|
|
|
-
|
|
|
-hex2dec(C) when C >= $A andalso C =< $F ->
|
|
|
- C - $A + 10;
|
|
|
-hex2dec(C) when C >= $0 andalso C =< $9 ->
|
|
|
- C - $0.
|