diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/include/taler_mhd_lib.h | 27 | ||||
| -rw-r--r-- | src/mhd/mhd_parsing.c | 64 |
2 files changed, 84 insertions, 7 deletions
diff --git a/src/include/taler_mhd_lib.h b/src/include/taler_mhd_lib.h index 71006e8b..8cfb8072 100644 --- a/src/include/taler_mhd_lib.h +++ b/src/include/taler_mhd_lib.h @@ -264,7 +264,8 @@ TALER_MHD_parse_post_cleanup_callback (void *con_cls); /** * Parse JSON object into components based on the given field - * specification. + * specification. If parsing fails, we return an HTTP + * status code of 400 (#MHD_HTTP_BAD_REQUEST). * * @param connection the connection to send an error response to * @param root the JSON node to start the navigation at. @@ -283,6 +284,30 @@ TALER_MHD_parse_json_data (struct MHD_Connection *connection, /** + * Parse JSON object that we (the server!) generated into components based on + * the given field specification. The difference to + * #TALER_MHD_parse_json_data() is that this function will fail + * with an HTTP failure of 500 (internal server error) in case + * parsing fails, instead of blaming it on the client with a + * 400 (#MHD_HTTP_BAD_REQUEST). + * + * @param connection the connection to send an error response to + * @param root the JSON node to start the navigation at. + * @param spec field specification for the parser + * @return + * #GNUNET_YES if navigation was successful (caller is responsible + * for freeing allocated variable-size data using + * GNUNET_JSON_parse_free() when done) + * #GNUNET_NO if json is malformed, error response was generated + * #GNUNET_SYSERR on internal error + */ +enum GNUNET_GenericReturnValue +TALER_MHD_parse_internal_json_data (struct MHD_Connection *connection, + const json_t *root, + struct GNUNET_JSON_Specification *spec); + + +/** * Parse JSON array into components based on the given field * specification. Generates error response on parse errors. * diff --git a/src/mhd/mhd_parsing.c b/src/mhd/mhd_parsing.c index fca54f3f..2a086e11 100644 --- a/src/mhd/mhd_parsing.c +++ b/src/mhd/mhd_parsing.c @@ -1,6 +1,6 @@ /* This file is part of TALER - Copyright (C) 2014--2019 Taler Systems SA + Copyright (C) 2014--2020 Taler Systems SA 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 @@ -56,7 +56,7 @@ * (we could not even queue an error message, * close HTTP session with MHD_NO) */ -int +enum GNUNET_GenericReturnValue TALER_MHD_parse_post_json (struct MHD_Connection *connection, void **con_cls, const char *upload_data, @@ -186,12 +186,12 @@ TALER_MHD_parse_request_arg_data (struct MHD_Connection *connection, * #GNUNET_NO if json is malformed, error response was generated * #GNUNET_SYSERR on internal error */ -int +enum GNUNET_GenericReturnValue TALER_MHD_parse_json_data (struct MHD_Connection *connection, const json_t *root, struct GNUNET_JSON_Specification *spec) { - int ret; + enum GNUNET_GenericReturnValue ret; const char *error_json_name; unsigned int error_line; @@ -221,6 +221,58 @@ TALER_MHD_parse_json_data (struct MHD_Connection *connection, /** + * Parse JSON object that we (the server!) generated into components based on + * the given field specification. The difference to + * #TALER_MHD_parse_json_data() is that this function will fail + * with an HTTP failure of 500 (internal server error) in case + * parsing fails, instead of blaming it on the client with a + * 400 (#MHD_HTTP_BAD_REQUEST). + * + * @param connection the connection to send an error response to + * @param root the JSON node to start the navigation at. + * @param spec field specification for the parser + * @return + * #GNUNET_YES if navigation was successful (caller is responsible + * for freeing allocated variable-size data using + * GNUNET_JSON_parse_free() when done) + * #GNUNET_NO if json is malformed, error response was generated + * #GNUNET_SYSERR on internal error + */ +enum GNUNET_GenericReturnValue +TALER_MHD_parse_internal_json_data (struct MHD_Connection *connection, + const json_t *root, + struct GNUNET_JSON_Specification *spec) +{ + enum GNUNET_GenericReturnValue ret; + const char *error_json_name; + unsigned int error_line; + + ret = GNUNET_JSON_parse (root, + spec, + &error_json_name, + &error_line); + if (GNUNET_SYSERR == ret) + { + if (NULL == error_json_name) + error_json_name = "<no field>"; + ret = (MHD_YES == + TALER_MHD_reply_json_pack (connection, + MHD_HTTP_INTERNAL_SERVER_ERROR, + "{s:s, s:I, s:s, s:I}", + "hint", "JSON parse error", + "code", + (json_int_t) + TALER_EC_INTERNAL_INVARIANT_FAILURE, + "field", error_json_name, + "line", (json_int_t) error_line)) + ? GNUNET_NO : GNUNET_SYSERR; + return ret; + } + return GNUNET_YES; +} + + +/** * Parse JSON array into components based on the given field * specification. Generates error response on parse errors. * @@ -235,13 +287,13 @@ TALER_MHD_parse_json_data (struct MHD_Connection *connection, * #GNUNET_NO if json is malformed, error response was generated * #GNUNET_SYSERR on internal error */ -int +enum GNUNET_GenericReturnValue TALER_MHD_parse_json_array (struct MHD_Connection *connection, const json_t *root, struct GNUNET_JSON_Specification *spec, ...) { - int ret; + enum GNUNET_GenericReturnValue ret; const char *error_json_name; unsigned int error_line; va_list ap; |