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Diffstat (limited to 'apps/chttpd/src/chttpd_oauth.erl')
-rw-r--r-- | apps/chttpd/src/chttpd_oauth.erl | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/apps/chttpd/src/chttpd_oauth.erl b/apps/chttpd/src/chttpd_oauth.erl deleted file mode 100644 index 84506efe..00000000 --- a/apps/chttpd/src/chttpd_oauth.erl +++ /dev/null @@ -1,168 +0,0 @@ -% Licensed under the Apache License, Version 2.0 (the "License"); you may not -% use this file except in compliance with the License. You may obtain a copy of -% the License at -% -% http://www.apache.org/licenses/LICENSE-2.0 -% -% Unless required by applicable law or agreed to in writing, software -% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT -% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the -% License for the specific language governing permissions and limitations under -% the License. - --module(chttpd_oauth). --include_lib("couch/include/couch_db.hrl"). - --export([oauth_authentication_handler/1, handle_oauth_req/1, consumer_lookup/2]). - -% OAuth auth handler using per-node user db -oauth_authentication_handler(#httpd{mochi_req=MochiReq}=Req) -> - serve_oauth(Req, fun(URL, Params, Consumer, Signature) -> - AccessToken = couch_util:get_value("oauth_token", Params), - TokenSecret = couch_config:get("oauth_token_secrets", AccessToken), - case oauth:verify(Signature, atom_to_list(MochiReq:get(method)), URL, Params, Consumer, TokenSecret) of - true -> - set_user_ctx(Req, AccessToken); - false -> - Req - end - end, true). - -% Look up the consumer key and get the roles to give the consumer -set_user_ctx(Req, AccessToken) -> - DbName = couch_config:get("couch_httpd_auth", "authentication_db", "users"), - ok = chttpd_auth:ensure_users_db_exists(?l2b(DbName)), - Name = ?l2b(couch_config:get("oauth_token_users", AccessToken)), - case chttpd_auth:get_user(Name) of - nil -> Req; - User -> - Roles = couch_util:get_value(<<"roles">>, User, []), - Req#httpd{user_ctx=#user_ctx{name=Name, roles=Roles}} - end. - -% OAuth request_token -handle_oauth_req(#httpd{path_parts=[_OAuth, <<"request_token">>], method=Method}=Req) -> - serve_oauth(Req, fun(URL, Params, Consumer, Signature) -> - AccessToken = couch_util:get_value("oauth_token", Params), - TokenSecret = couch_config:get("oauth_token_secrets", AccessToken), - case oauth:verify(Signature, atom_to_list(Method), URL, Params, Consumer, TokenSecret) of - true -> - ok(Req, <<"oauth_token=requestkey&oauth_token_secret=requestsecret">>); - false -> - invalid_signature(Req) - end - end, false); -handle_oauth_req(#httpd{path_parts=[_OAuth, <<"authorize">>]}=Req) -> - {ok, serve_oauth_authorize(Req)}; -handle_oauth_req(#httpd{path_parts=[_OAuth, <<"access_token">>], method='GET'}=Req) -> - serve_oauth(Req, fun(URL, Params, Consumer, Signature) -> - case oauth:token(Params) of - "requestkey" -> - case oauth:verify(Signature, "GET", URL, Params, Consumer, "requestsecret") of - true -> - ok(Req, <<"oauth_token=accesskey&oauth_token_secret=accesssecret">>); - false -> - invalid_signature(Req) - end; - _ -> - chttpd:send_error(Req, 400, <<"invalid_token">>, <<"Invalid OAuth token.">>) - end - end, false); -handle_oauth_req(#httpd{path_parts=[_OAuth, <<"access_token">>]}=Req) -> - chttpd:send_method_not_allowed(Req, "GET"). - -invalid_signature(Req) -> - chttpd:send_error(Req, 400, <<"invalid_signature">>, <<"Invalid signature value.">>). - -% This needs to be protected i.e. force user to login using HTTP Basic Auth or form-based login. -serve_oauth_authorize(#httpd{method=Method}=Req) -> - case Method of - 'GET' -> - % Confirm with the User that they want to authenticate the Consumer - serve_oauth(Req, fun(URL, Params, Consumer, Signature) -> - AccessToken = couch_util:get_value("oauth_token", Params), - TokenSecret = couch_config:get("oauth_token_secrets", AccessToken), - case oauth:verify(Signature, "GET", URL, Params, Consumer, TokenSecret) of - true -> - ok(Req, <<"oauth_token=requestkey&oauth_token_secret=requestsecret">>); - false -> - invalid_signature(Req) - end - end, false); - 'POST' -> - % If the User has confirmed, we direct the User back to the Consumer with a verification code - serve_oauth(Req, fun(URL, Params, Consumer, Signature) -> - AccessToken = couch_util:get_value("oauth_token", Params), - TokenSecret = couch_config:get("oauth_token_secrets", AccessToken), - case oauth:verify(Signature, "POST", URL, Params, Consumer, TokenSecret) of - true -> - %redirect(oauth_callback, oauth_token, oauth_verifier), - ok(Req, <<"oauth_token=requestkey&oauth_token_secret=requestsecret">>); - false -> - invalid_signature(Req) - end - end, false); - _ -> - chttpd:send_method_not_allowed(Req, "GET,POST") - end. - -serve_oauth(#httpd{mochi_req=MochiReq}=Req, Fun, FailSilently) -> - % 1. In the HTTP Authorization header as defined in OAuth HTTP Authorization Scheme. - % 2. As the HTTP POST request body with a content-type of application/x-www-form-urlencoded. - % 3. Added to the URLs in the query part (as defined by [RFC3986] section 3). - AuthHeader = case MochiReq:get_header_value("authorization") of - undefined -> - ""; - Else -> - [Head | Tail] = re:split(Else, "\\s", [{parts, 2}, {return, list}]), - case [string:to_lower(Head) | Tail] of - ["oauth", Rest] -> Rest; - _ -> "" - end - end, - HeaderParams = oauth_uri:params_from_header_string(AuthHeader), - %Realm = couch_util:get_value("realm", HeaderParams), - Params = proplists:delete("realm", HeaderParams) ++ MochiReq:parse_qs(), - ?LOG_DEBUG("OAuth Params: ~p", [Params]), - case couch_util:get_value("oauth_version", Params, "1.0") of - "1.0" -> - case couch_util:get_value("oauth_consumer_key", Params, undefined) of - undefined -> - case FailSilently of - true -> Req; - false -> chttpd:send_error(Req, 400, <<"invalid_consumer">>, <<"Invalid consumer.">>) - end; - ConsumerKey -> - SigMethod = couch_util:get_value("oauth_signature_method", Params), - case consumer_lookup(ConsumerKey, SigMethod) of - none -> - chttpd:send_error(Req, 400, <<"invalid_consumer">>, <<"Invalid consumer (key or signature method).">>); - Consumer -> - Signature = couch_util:get_value("oauth_signature", Params), - URL = chttpd:absolute_uri(Req, MochiReq:get(raw_path)), - Fun(URL, proplists:delete("oauth_signature", Params), - Consumer, Signature) - end - end; - _ -> - chttpd:send_error(Req, 400, <<"invalid_oauth_version">>, <<"Invalid OAuth version.">>) - end. - -consumer_lookup(Key, MethodStr) -> - SignatureMethod = case MethodStr of - "PLAINTEXT" -> plaintext; - "HMAC-SHA1" -> hmac_sha1; - %"RSA-SHA1" -> rsa_sha1; - _Else -> undefined - end, - case SignatureMethod of - undefined -> none; - _SupportedMethod -> - case couch_config:get("oauth_consumer_secrets", Key, undefined) of - undefined -> none; - Secret -> {Key, Secret, SignatureMethod} - end - end. - -ok(#httpd{mochi_req=MochiReq}, Body) -> - {ok, MochiReq:respond({200, [], Body})}. |