From 19ca32693a84a087ba7bbaa9ea97080f8cfe34c1 Mon Sep 17 00:00:00 2001 From: Christian Grothoff Date: Wed, 25 Nov 2020 21:55:01 +0100 Subject: post keys client logic --- src/lib/exchange_api_management_post_keys.c | 190 ++++++++++++++++++++++++++-- 1 file changed, 176 insertions(+), 14 deletions(-) (limited to 'src/lib/exchange_api_management_post_keys.c') diff --git a/src/lib/exchange_api_management_post_keys.c b/src/lib/exchange_api_management_post_keys.c index 7cbf27b31..b885df7f2 100644 --- a/src/lib/exchange_api_management_post_keys.c +++ b/src/lib/exchange_api_management_post_keys.c @@ -24,6 +24,8 @@ #include #include "taler_exchange_service.h" #include "taler_signatures.h" +#include "taler_curl_lib.h" +#include "taler_json_lib.h" /** @@ -37,6 +39,11 @@ struct TALER_EXCHANGE_ManagementPostKeysHandle */ char *url; + /** + * Minor context that holds body and headers. + */ + struct TALER_CURL_PostContext post_ctx; + /** * Handle for the request. */ @@ -45,7 +52,7 @@ struct TALER_EXCHANGE_ManagementPostKeysHandle /** * Function to call with the result. */ - TALER_EXCHANGE_ManagementGetKeysCallback cb; + TALER_EXCHANGE_ManagementPostKeysCallback cb; /** * Closure for @a cb. @@ -60,28 +67,182 @@ struct TALER_EXCHANGE_ManagementPostKeysHandle /** - * Provide master-key signatures to the exchange. + * Function called when we're done processing the + * HTTP POST /management/keys request. * - * @param ctx the context - * @param url HTTP base URL for the exchange - * @param cb function to call with the exchange's result - * @param cb_cls closure for @a cb - * @return the request handle; NULL upon error + * @param cls the `struct TALER_EXCHANGE_ManagementPostKeysHandle *` + * @param response_code HTTP response code, 0 on error + * @param response response body, NULL if not in JSON */ +static void +handle_post_keys_finished (void *cls, + long response_code, + const void *response) +{ + struct TALER_EXCHANGE_ManagementPostKeysHandle *ph = cls; + const json_t *json = response; + struct TALER_EXCHANGE_HttpResponse hr = { + .http_status = (unsigned int) response_code, + .reply = json + }; + + ph->job = NULL; + switch (response_code) + { + case MHD_HTTP_NO_CONTENT: + break; + case MHD_HTTP_FORBIDDEN: + hr.ec = TALER_JSON_get_error_code (json); + hr.hint = TALER_JSON_get_error_hint (json); + break; + default: + /* unexpected response code */ + GNUNET_break_op (0); + 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\n", + (unsigned int) response_code, + (int) hr.ec); + break; + } + if (NULL != ph->cb) + { + ph->cb (ph->cb_cls, + &hr); + ph->cb = NULL; + } + TALER_EXCHANGE_post_management_keys_cancel (ph); +} + + struct TALER_EXCHANGE_ManagementPostKeysHandle * TALER_EXCHANGE_post_management_keys ( struct GNUNET_CURL_Context *ctx, const char *url, const struct TALER_EXCHANGE_ManagementPostKeysData *pkd, - TALER_EXCHANGE_ManagementGetKeysCallback cb, - void *cb_cls); + TALER_EXCHANGE_ManagementPostKeysCallback cb, + void *cb_cls) +{ + struct TALER_EXCHANGE_ManagementPostKeysHandle *ph; + CURL *eh; + json_t *body; + json_t *denom_sigs; + json_t *signkey_sigs; + + ph = GNUNET_new (struct TALER_EXCHANGE_ManagementPostKeysHandle); + ph->cb = cb; + ph->cb_cls = cb_cls; + ph->ctx = ctx; + ph->url = TALER_url_join (url, + "management/keys", + NULL); + if (NULL == ph->url) + { + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Could not construct request URL.\n"); + GNUNET_free (ph); + return NULL; + } + denom_sigs = json_array (); + if (NULL == denom_sigs) + { + GNUNET_free (ph->url); + GNUNET_free (ph); + return NULL; + } + for (unsigned int i = 0; inum_denom_sigs; i++) + { + if (0 != + json_array_append_new ( + denom_sigs, + json_pack ("{s:o, s:o}", + "h_denom_pub", + GNUNET_JSON_from_data_auto ( + &pkd->denom_sigs[i].h_denom_pub), + "master_sig", + GNUNET_JSON_from_data_auto ( + &pkd->denom_sigs[i].master_sig)))) + { + json_decref (denom_sigs); + GNUNET_free (ph->url); + GNUNET_free (ph); + return NULL; + } + } + signkey_sigs = json_array (); + if (NULL == signkey_sigs) + { + json_decref (denom_sigs); + GNUNET_free (ph->url); + GNUNET_free (ph); + return NULL; + } + for (unsigned int i = 0; inum_sign_sigs; i++) + { + if (0 != + json_array_append_new ( + signkey_sigs, + json_pack ("{s:o, s:o}", + "exchange_pub", + GNUNET_JSON_from_data_auto ( + &pkd->sign_sigs[i].exchange_pub), + "master_sig", + GNUNET_JSON_from_data_auto ( + &pkd->sign_sigs[i].master_sig)))) + { + json_decref (signkey_sigs); + json_decref (denom_sigs); + GNUNET_free (ph->url); + GNUNET_free (ph); + return NULL; + } + } + body = json_pack ("{s:o, s:o}", + "denom_sigs", + denom_sigs, + "signkey_sigs", + signkey_sigs); + if (NULL == body) + { + GNUNET_break (0); + GNUNET_free (ph->url); + GNUNET_free (ph); + return NULL; + } + eh = curl_easy_init (); + if (GNUNET_OK != + TALER_curl_easy_post (&ph->post_ctx, + eh, + body)) + { + GNUNET_break (0); + json_decref (body); + GNUNET_free (ph->url); + GNUNET_free (eh); + return NULL; + } + json_decref (body); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "Requesting URL '%s'\n", + ph->url); + GNUNET_assert (CURLE_OK == curl_easy_setopt (eh, + CURLOPT_URL, + ph->url)); + ph->job = GNUNET_CURL_job_add2 (ctx, + eh, + ph->post_ctx.headers, + &handle_post_keys_finished, + ph); + if (NULL == ph->job) + { + TALER_EXCHANGE_post_management_keys_cancel (ph); + return NULL; + } + return ph; +} -/** - * Cancel #TALER_EXCHANGE_post_management_keys() operation. - * - * @param gh handle of the operation to cancel - */ void TALER_EXCHANGE_post_management_keys_cancel ( struct TALER_EXCHANGE_ManagementPostKeysHandle *ph) @@ -91,6 +252,7 @@ TALER_EXCHANGE_post_management_keys_cancel ( GNUNET_CURL_job_cancel (ph->job); ph->job = NULL; } + TALER_curl_easy_post_finished (&ph->post_ctx); GNUNET_free (ph->url); GNUNET_free (ph); } -- cgit v1.2.3