| /*************************************************************************** |
| * _ _ ____ _ |
| * Project ___| | | | _ \| | |
| * / __| | | | |_) | | |
| * | (__| |_| | _ <| |___ |
| * \___|\___/|_| \_\_____| |
| * |
| * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al. |
| * |
| * This software is licensed as described in the file COPYING, which |
| * you should have received as part of this distribution. The terms |
| * are also available at https://curl.haxx.se/docs/copyright.html. |
| * |
| * You may opt to use, copy, modify, merge, publish, distribute and/or sell |
| * copies of the Software, and permit persons to whom the Software is |
| * furnished to do so, under the terms of the COPYING file. |
| * |
| * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| * KIND, either express or implied. |
| * |
| ***************************************************************************/ |
| |
| #include "curl_setup.h" |
| |
| #if !defined(CURL_DISABLE_HTTP) && defined(USE_SPNEGO) |
| |
| #include "urldata.h" |
| #include "sendf.h" |
| #include "http_negotiate.h" |
| #include "vauth/vauth.h" |
| |
| /* The last 3 #include files should be in this order */ |
| #include "curl_printf.h" |
| #include "curl_memory.h" |
| #include "memdebug.h" |
| |
| CURLcode Curl_input_negotiate(struct connectdata *conn, bool proxy, |
| const char *header) |
| { |
| CURLcode result; |
| struct Curl_easy *data = conn->data; |
| size_t len; |
| |
| /* Point to the username, password, service and host */ |
| const char *userp; |
| const char *passwdp; |
| const char *service; |
| const char *host; |
| |
| /* Point to the correct struct with this */ |
| struct negotiatedata *neg_ctx; |
| |
| if(proxy) { |
| userp = conn->http_proxy.user; |
| passwdp = conn->http_proxy.passwd; |
| service = data->set.str[STRING_PROXY_SERVICE_NAME] ? |
| data->set.str[STRING_PROXY_SERVICE_NAME] : "HTTP"; |
| host = conn->http_proxy.host.name; |
| neg_ctx = &data->state.proxyneg; |
| } |
| else { |
| userp = conn->user; |
| passwdp = conn->passwd; |
| service = data->set.str[STRING_SERVICE_NAME] ? |
| data->set.str[STRING_SERVICE_NAME] : "HTTP"; |
| host = conn->host.name; |
| neg_ctx = &data->state.negotiate; |
| } |
| |
| /* Not set means empty */ |
| if(!userp) |
| userp = ""; |
| |
| if(!passwdp) |
| passwdp = ""; |
| |
| /* Obtain the input token, if any */ |
| header += strlen("Negotiate"); |
| while(*header && ISSPACE(*header)) |
| header++; |
| |
| len = strlen(header); |
| if(!len) { |
| /* Is this the first call in a new negotiation? */ |
| if(neg_ctx->context) { |
| /* The server rejected our authentication and hasn't suppled any more |
| negotiation mechanisms */ |
| return CURLE_LOGIN_DENIED; |
| } |
| } |
| |
| /* Initilise the security context and decode our challenge */ |
| result = Curl_auth_decode_spnego_message(data, userp, passwdp, service, |
| host, header, neg_ctx); |
| |
| if(result) |
| Curl_auth_spnego_cleanup(neg_ctx); |
| |
| return result; |
| } |
| |
| CURLcode Curl_output_negotiate(struct connectdata *conn, bool proxy) |
| { |
| struct negotiatedata *neg_ctx = proxy ? &conn->data->state.proxyneg : |
| &conn->data->state.negotiate; |
| char *base64 = NULL; |
| size_t len = 0; |
| char *userp; |
| CURLcode result; |
| |
| result = Curl_auth_create_spnego_message(conn->data, neg_ctx, &base64, &len); |
| if(result) |
| return result; |
| |
| userp = aprintf("%sAuthorization: Negotiate %s\r\n", proxy ? "Proxy-" : "", |
| base64); |
| |
| if(proxy) { |
| Curl_safefree(conn->allocptr.proxyuserpwd); |
| conn->allocptr.proxyuserpwd = userp; |
| } |
| else { |
| Curl_safefree(conn->allocptr.userpwd); |
| conn->allocptr.userpwd = userp; |
| } |
| |
| free(base64); |
| |
| return (userp == NULL) ? CURLE_OUT_OF_MEMORY : CURLE_OK; |
| } |
| |
| void Curl_cleanup_negotiate(struct Curl_easy *data) |
| { |
| Curl_auth_spnego_cleanup(&data->state.negotiate); |
| Curl_auth_spnego_cleanup(&data->state.proxyneg); |
| } |
| |
| #endif /* !CURL_DISABLE_HTTP && USE_SPNEGO */ |