summaryrefslogtreecommitdiff
path: root/src/lib/auditor_api_exchanges.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/auditor_api_exchanges.c')
-rw-r--r--src/lib/auditor_api_exchanges.c270
1 files changed, 0 insertions, 270 deletions
diff --git a/src/lib/auditor_api_exchanges.c b/src/lib/auditor_api_exchanges.c
deleted file mode 100644
index 136212258..000000000
--- a/src/lib/auditor_api_exchanges.c
+++ /dev/null
@@ -1,270 +0,0 @@
-/*
- This file is part of TALER
- Copyright (C) 2014-2018 Taler Systems SA
-
- TALER is free software; you can redistribute it and/or modify it under the
- terms of the GNU 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License along with
- TALER; see the file COPYING. If not, see
- <http://www.gnu.org/licenses/>
-*/
-/**
- * @file lib/auditor_api_exchanges.c
- * @brief Implementation of the /exchanges request of the auditor's HTTP API
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <jansson.h>
-#include <microhttpd.h> /* just for HTTP status codes */
-#include <gnunet/gnunet_util_lib.h>
-#include <gnunet/gnunet_json_lib.h>
-#include <gnunet/gnunet_curl_lib.h>
-#include "taler_json_lib.h"
-#include "taler_auditor_service.h"
-#include "auditor_api_handle.h"
-#include "taler_signatures.h"
-#include "auditor_api_curl_defaults.h"
-
-/**
- * How many exchanges do we allow a single auditor to
- * audit at most?
- */
-#define MAX_EXCHANGES 1024
-
-
-/**
- * @brief A ListExchanges Handle
- */
-struct TALER_AUDITOR_ListExchangesHandle
-{
-
- /**
- * The connection to auditor this request handle will use
- */
- struct TALER_AUDITOR_Handle *auditor;
-
- /**
- * The url for this request.
- */
- char *url;
-
- /**
- * Handle for the request.
- */
- struct GNUNET_CURL_Job *job;
-
- /**
- * Function to call with the result.
- */
- TALER_AUDITOR_ListExchangesResultCallback cb;
-
- /**
- * Closure for @a cb.
- */
- void *cb_cls;
-
-};
-
-
-/**
- * Function called when we're done processing the
- * HTTP /exchanges request.
- *
- * @param cls the `struct TALER_AUDITOR_ListExchangesHandle`
- * @param response_code HTTP response code, 0 on error
- * @param djson parsed JSON result, NULL on error
- */
-static void
-handle_exchanges_finished (void *cls,
- long response_code,
- const void *djson)
-{
- const json_t *json = djson;
- const json_t *ja;
- unsigned int ja_len;
- struct TALER_AUDITOR_ListExchangesHandle *leh = cls;
- struct TALER_AUDITOR_HttpResponse hr = {
- .reply = json,
- .http_status = (unsigned int) response_code
- };
-
- leh->job = NULL;
- switch (response_code)
- {
- case 0:
- hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
- break;
- case MHD_HTTP_OK:
- ja = json_object_get (json,
- "exchanges");
- if ( (NULL == ja) ||
- (! json_is_array (ja)) )
- {
- GNUNET_break (0);
- hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED;
- hr.http_status = 0;
- break;
- }
-
- ja_len = json_array_size (ja);
- if (ja_len > MAX_EXCHANGES)
- {
- GNUNET_break (0);
- hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED;
- hr.http_status = 0;
- break;
- }
- {
- struct TALER_AUDITOR_ExchangeInfo ei[ja_len];
- bool ok;
-
- ok = true;
- for (unsigned int i = 0; i<ja_len; i++)
- {
- struct GNUNET_JSON_Specification spec[] = {
- GNUNET_JSON_spec_fixed_auto ("master_pub", &ei[i].master_pub),
- GNUNET_JSON_spec_string ("exchange_url", &ei[i].exchange_url),
- GNUNET_JSON_spec_end ()
- };
-
- if (GNUNET_OK !=
- GNUNET_JSON_parse (json_array_get (ja,
- i),
- spec,
- NULL, NULL))
- {
- GNUNET_break_op (0);
- ok = false;
- hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED;
- hr.http_status = 0;
- break;
- }
- }
- if (! ok)
- break;
- leh->cb (leh->cb_cls,
- &hr,
- ja_len,
- ei);
- TALER_AUDITOR_list_exchanges_cancel (leh);
- return;
- }
- case MHD_HTTP_BAD_REQUEST:
- /* This should never happen, either us or the auditor is buggy
- (or API version conflict); just pass JSON reply to the application */
- hr.ec = TALER_JSON_get_error_code (json);
- hr.hint = TALER_JSON_get_error_hint (json);
- break;
- case MHD_HTTP_NOT_FOUND:
- /* Nothing really to verify, this should never
- happen, we should pass the JSON reply to the application */
- hr.ec = TALER_JSON_get_error_code (json);
- hr.hint = TALER_JSON_get_error_hint (json);
- break;
- case MHD_HTTP_INTERNAL_SERVER_ERROR:
- /* Server had an internal issue; we should retry, but this API
- leaves this to the application */
- hr.ec = TALER_JSON_get_error_code (json);
- hr.hint = TALER_JSON_get_error_hint (json);
- break;
- default:
- /* unexpected response code */
- hr.ec = TALER_JSON_get_error_code (json);
- hr.hint = TALER_JSON_get_error_hint (json);
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Unexpected response code %u/%d for auditor list-exchanges request\n",
- (unsigned int) response_code,
- (int) hr.ec);
- GNUNET_break_op (0);
- break;
- }
- if (NULL != leh->cb)
- leh->cb (leh->cb_cls,
- &hr,
- 0,
- NULL);
- TALER_AUDITOR_list_exchanges_cancel (leh);
-}
-
-
-/**
- * Submit an /exchanges request to the auditor and get the
- * auditor's response. If the auditor's reply is not
- * well-formed, we return an HTTP status code of zero to @a cb.
- *
- * @param auditor the auditor handle; the auditor must be ready to operate
- * @param cb the callback to call when a reply for this request is available
- * @param cb_cls closure for the above callback
- * @return a handle for this request; NULL if the inputs are invalid (i.e.
- * signatures fail to verify). In this case, the callback is not called.
- */
-struct TALER_AUDITOR_ListExchangesHandle *
-TALER_AUDITOR_list_exchanges (struct TALER_AUDITOR_Handle *auditor,
- TALER_AUDITOR_ListExchangesResultCallback cb,
- void *cb_cls)
-{
- struct TALER_AUDITOR_ListExchangesHandle *leh;
- struct GNUNET_CURL_Context *ctx;
- CURL *eh;
-
- GNUNET_assert (GNUNET_YES ==
- TALER_AUDITOR_handle_is_ready_ (auditor));
-
- leh = GNUNET_new (struct TALER_AUDITOR_ListExchangesHandle);
- leh->auditor = auditor;
- leh->cb = cb;
- leh->cb_cls = cb_cls;
- leh->url = TALER_AUDITOR_path_to_url_ (auditor,
- "/exchanges");
- if (NULL == leh->url)
- {
- GNUNET_free (leh);
- return NULL;
- }
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "URL for list-exchanges: `%s'\n",
- leh->url);
- eh = TALER_AUDITOR_curl_easy_get_ (leh->url);
- if (NULL == eh)
- {
- GNUNET_break (0);
- GNUNET_free (leh->url);
- GNUNET_free (leh);
- return NULL;
- }
- ctx = TALER_AUDITOR_handle_to_context_ (auditor);
- leh->job = GNUNET_CURL_job_add (ctx,
- eh,
- &handle_exchanges_finished,
- leh);
- return leh;
-}
-
-
-/**
- * Cancel a list exchanges request. This function cannot be used
- * on a request handle if a response is already served for it.
- *
- * @param leh the list exchanges request handle
- */
-void
-TALER_AUDITOR_list_exchanges_cancel (
- struct TALER_AUDITOR_ListExchangesHandle *leh)
-{
- if (NULL != leh->job)
- {
- GNUNET_CURL_job_cancel (leh->job);
- leh->job = NULL;
- }
- GNUNET_free (leh->url);
- GNUNET_free (leh);
-}
-
-
-/* end of auditor_api_exchanges.c */