/* This file is part of TALER Copyright (C) 2015 GNUnet e.V. TALER is free software; you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. TALER is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with TALER; see the file COPYING. If not, If not, see */ /** * @file taler-mint-httpd_wire.c * @brief Handle /wire requests * @author Christian Grothoff */ #include "platform.h" #include "taler-mint-httpd_keystate.h" #include "taler-mint-httpd_responses.h" #include "taler-mint-httpd_wire.h" #include /** * Handle a "/wire" request. * * @param rh context of the handler * @param connection the MHD connection to handle * @param[in,out] connection_cls the connection's closure (can be updated) * @param upload_data upload data * @param[in,out] upload_data_size number of bytes (left) in @a upload_data * @return MHD result code */ int TMH_WIRE_handler_wire (struct TMH_RequestHandler *rh, struct MHD_Connection *connection, void **connection_cls, const char *upload_data, size_t *upload_data_size) { struct TALER_MintWireSupportMethodsPS wsm; struct TALER_MintPublicKeyP pub; struct TALER_MintSignatureP sig; json_t *methods; struct GNUNET_HashContext *hc; unsigned int i; const char *wf; methods = json_array (); hc = GNUNET_CRYPTO_hash_context_start (); for (i=0;NULL != (wf = TMH_expected_wire_formats[i]); i++) { json_array_append_new (methods, json_string (wf)); GNUNET_CRYPTO_hash_context_read (hc, wf, strlen (wf) + 1); } wsm.purpose.size = htonl (sizeof (wsm)); wsm.purpose.purpose = htonl (TALER_SIGNATURE_MINT_WIRE_TYPES); GNUNET_CRYPTO_hash_context_finish (hc, &wsm.h_wire_types); TMH_KS_sign (&wsm.purpose, &pub, &sig); return TMH_RESPONSE_reply_json_pack (connection, MHD_HTTP_OK, "{s:o, s:o, s:o}", "methods", methods, "sig", TALER_json_from_data (&sig, sizeof (sig)), "pub", TALER_json_from_data (&pub, sizeof (pub))); } /** * Handle a "/wire/test" request. * * @param rh context of the handler * @param connection the MHD connection to handle * @param[in,out] connection_cls the connection's closure (can be updated) * @param upload_data upload data * @param[in,out] upload_data_size number of bytes (left) in @a upload_data * @return MHD result code */ int TMH_WIRE_handler_wire_test (struct TMH_RequestHandler *rh, struct MHD_Connection *connection, void **connection_cls, const char *upload_data, size_t *upload_data_size) { struct MHD_Response *response; int ret; char *wire_test_redirect; unsigned int i; response = MHD_create_response_from_buffer (0, NULL, MHD_RESPMEM_PERSISTENT); if (NULL == response) { GNUNET_break (0); return MHD_NO; } TMH_RESPONSE_add_global_headers (response); for (i=0;NULL != TMH_expected_wire_formats[i];i++) if (0 == strcasecmp ("test", TMH_expected_wire_formats[i])) break; if (NULL == TMH_expected_wire_formats[i]) { /* Return 501: not implemented */ ret = MHD_queue_response (connection, MHD_HTTP_NOT_IMPLEMENTED, response); MHD_destroy_response (response); return ret; } if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_string (cfg, "mint-wire-test", "REDIRECT_URL", &wire_test_redirect)) { /* oopsie, configuration error */ return TMH_RESPONSE_reply_internal_error (connection, "REDIRECT_URL not configured"); } MHD_add_response_header (response, MHD_HTTP_HEADER_LOCATION, wire_test_redirect); GNUNET_free (wire_test_redirect); ret = MHD_queue_response (connection, rh->response_code, response); MHD_destroy_response (response); return ret; } /** * Handle a "/wire/sepa" request. * * @param rh context of the handler * @param connection the MHD connection to handle * @param[in,out] connection_cls the connection's closure (can be updated) * @param upload_data upload data * @param[in,out] upload_data_size number of bytes (left) in @a upload_data * @return MHD result code */ int TMH_WIRE_handler_wire_sepa (struct TMH_RequestHandler *rh, struct MHD_Connection *connection, void **connection_cls, const char *upload_data, size_t *upload_data_size) { struct MHD_Response *response; int ret; char *sepa_wire_file; int fd; struct stat sbuf; unsigned int i; for (i=0;NULL != TMH_expected_wire_formats[i];i++) if (0 == strcasecmp ("sepa", TMH_expected_wire_formats[i])) break; if (NULL == TMH_expected_wire_formats[i]) { /* Return 501: not implemented */ response = MHD_create_response_from_buffer (0, NULL, MHD_RESPMEM_PERSISTENT); if (NULL == response) { GNUNET_break (0); return MHD_NO; } TMH_RESPONSE_add_global_headers (response); ret = MHD_queue_response (connection, MHD_HTTP_NOT_IMPLEMENTED, response); MHD_destroy_response (response); return ret; } /* Fetch reply */ if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "mint-wire-sepa", "SEPA_RESPONSE_FILE", &sepa_wire_file)) { return TMH_RESPONSE_reply_internal_error (connection, "SEPA_RESPONSE_FILE not configured"); } fd = open (sepa_wire_file, O_RDONLY); if (-1 == fd) { GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "open", sepa_wire_file); GNUNET_free (sepa_wire_file); return TMH_RESPONSE_reply_internal_error (connection, "Failed to open SEPA_RESPONSE_FILE"); } if (0 != fstat (fd, &sbuf)) { GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "fstat", sepa_wire_file); (void) close (fd); GNUNET_free (sepa_wire_file); return TMH_RESPONSE_reply_internal_error (connection, "Failed to open SEPA_RESPONSE_FILE"); } response = MHD_create_response_from_fd ((size_t) sbuf.st_size, fd); GNUNET_free (sepa_wire_file); if (NULL == response) { (void) close (fd); GNUNET_break (0); return MHD_NO; } TMH_RESPONSE_add_global_headers (response); if (NULL != rh->mime_type) (void) MHD_add_response_header (response, MHD_HTTP_HEADER_CONTENT_TYPE, rh->mime_type); ret = MHD_queue_response (connection, rh->response_code, response); MHD_destroy_response (response); return ret; } /* end of taler-mint-httpd_wire.c */