diff options
Diffstat (limited to 'src/mint/taler-mint-httpd_parsing.c')
| -rw-r--r-- | src/mint/taler-mint-httpd_parsing.c | 84 |
1 files changed, 78 insertions, 6 deletions
diff --git a/src/mint/taler-mint-httpd_parsing.c b/src/mint/taler-mint-httpd_parsing.c index c4e28bba..066f1891 100644 --- a/src/mint/taler-mint-httpd_parsing.c +++ b/src/mint/taler-mint-httpd_parsing.c @@ -110,8 +110,8 @@ buffer_deinit (struct Buffer *buf) * @param data the data to append * @param size the size of @a data * @param max_size maximum size that the buffer can grow to - * @return GNUNET_OK on success, - * GNUNET_NO if the buffer can't accomodate for the new data + * @return #GNUNET_OK on success, + * #GNUNET_NO if the buffer can't accomodate for the new data */ static int buffer_append (struct Buffer *buf, @@ -153,14 +153,14 @@ buffer_append (struct Buffer *buf, * @param upload_data the POST data * @param upload_data_size number of bytes in @a upload_data * @param json the JSON object for a completed request - * @returns - * GNUNET_YES if json object was parsed or at least + * @return + * #GNUNET_YES if json object was parsed or at least * may be parsed in the future (call again); * `*json` will be NULL if we need to be called again, * and non-NULL if we are done. - * GNUNET_NO is request incomplete or invalid + * #GNUNET_NO is request incomplete or invalid * (error message was generated) - * GNUNET_SYSERR on internal error + * #GNUNET_SYSERR on internal error * (we could not even queue an error message, * close HTTP session with MHD_NO) */ @@ -606,6 +606,78 @@ TALER_MINT_release_parsed_data (struct GNUNET_MINT_ParseFieldSpec *spec) /** + * Parse amount specified in JSON format. + * + * @param connection the MHD connection (to report errors) + * @param f json specification of the amount + * @param amount[OUT] set to the amount specified in @a f + * @return + * #GNUNET_YES if parsing was successful + * #GNUNET_NO if json is malformed, error response was generated + * #GNUNET_SYSERR on internal error, error response was not generated + */ +int +TALER_MINT_parse_amount_json (struct MHD_Connection *connection, + json_t *f, + struct TALER_Amount *amount) +{ + json_int_t value; + json_int_t fraction; + const char *currency; + struct TALER_Amount a; + + if (-1 == json_unpack (f, + "{s:I, s:I, s:s}", + "value", &value, + "fraction", &fraction, + "currency", ¤cy)) + { + LOG_WARNING ("Failed to parse JSON amount specification\n"); + if (MHD_YES != + TALER_MINT_reply_json_pack (connection, + MHD_HTTP_BAD_REQUEST, + "{s:s}", + "error", "Bad format")) + return GNUNET_SYSERR; + return GNUNET_NO; + } + if ( (value < 0) || + (fraction < 0) || + (value > UINT32_MAX) || + (fraction > UINT32_MAX) ) + { + LOG_WARNING ("Amount specified not in allowed range\n"); + if (MHD_YES != + TALER_MINT_reply_json_pack (connection, + MHD_HTTP_BAD_REQUEST, + "{s:s}", + "error", "Amount outside of allowed range")) + return GNUNET_SYSERR; + return GNUNET_NO; + } + if (0 != strcmp (currency, + MINT_CURRENCY)) + { + LOG_WARNING ("Currency specified not supported by this mint\n"); + if (MHD_YES != + TALER_MINT_reply_json_pack (connection, + MHD_HTTP_BAD_REQUEST, + "{s:s, s:s}", + "error", "Currency not supported", + "currency", currency)) + return GNUNET_SYSERR; + return GNUNET_NO; + } + a.value = (uint32_t) value; + a.fraction = (uint32_t) fraction; + GNUNET_assert (strlen (MINT_CURRENCY) < TALER_CURRENCY_LEN); + strcpy (a.currency, MINT_CURRENCY); + *amount = TALER_amount_normalize (a); + return GNUNET_OK; +} + + +/** * Extract base32crockford encoded data from request. * * Queues an error response to the connection if the parameter is missing or |