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Diffstat (limited to 'src/exchange-lib/exchange_api_json.c')
| -rw-r--r-- | src/exchange-lib/exchange_api_json.c | 541 |
1 files changed, 0 insertions, 541 deletions
diff --git a/src/exchange-lib/exchange_api_json.c b/src/exchange-lib/exchange_api_json.c deleted file mode 100644 index d6c54be5..00000000 --- a/src/exchange-lib/exchange_api_json.c +++ /dev/null @@ -1,541 +0,0 @@ -/* - This file is part of TALER - Copyright (C) 2014, 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 <http://www.gnu.org/licenses/> -*/ -/** - * @file exchange-lib/exchange_api_json.c - * @brief functions to parse incoming requests (JSON snippets) - * @author Florian Dold - * @author Benedikt Mueller - * @author Christian Grothoff - */ -#include "platform.h" -#include "exchange_api_json.h" -#include "taler_json_lib.h" - -/** - * Navigate and parse data in a JSON tree. - * - * @param root the JSON node to start the navigation at. - * @param spec parse specification array - * @return offset in @a spec where parsing failed, -1 on success (!) - */ -static int -parse_json (json_t *root, - struct MAJ_Specification *spec) -{ - int i; - json_t *pos; /* what's our current position? */ - - pos = root; - for (i=0;MAJ_CMD_END != spec[i].cmd;i++) - { - pos = json_object_get (root, - spec[i].field); - if (NULL == pos) - { - GNUNET_break_op (0); - return i; - } - switch (spec[i].cmd) - { - case MAJ_CMD_END: - GNUNET_assert (0); - return i; - case MAJ_CMD_AMOUNT: - { - struct GNUNET_JSON_Specification nspec[] = { - TALER_JSON_spec_amount (NULL, spec[i].details.amount), - GNUNET_JSON_spec_end () - }; - - if (GNUNET_OK != - GNUNET_JSON_parse (pos, - nspec, - NULL, NULL)) - { - GNUNET_break_op (0); - return i; - } - break; - } - case MAJ_CMD_TIME_ABSOLUTE: - { - struct GNUNET_JSON_Specification nspec[] = { - GNUNET_JSON_spec_absolute_time (NULL, spec[i].details.abs_time), - GNUNET_JSON_spec_end () - }; - - if (GNUNET_OK != - GNUNET_JSON_parse (pos, - nspec, - NULL, NULL)) - { - GNUNET_break_op (0); - return i; - } - break; - } - case MAJ_CMD_STRING: - { - const char *str; - - str = json_string_value (pos); - if (NULL == str) - { - GNUNET_break_op (0); - return i; - } - *spec[i].details.strptr = str; - } - break; - - case MAJ_CMD_BINARY_FIXED: - { - const char *str; - int res; - - str = json_string_value (pos); - if (NULL == str) - { - GNUNET_break_op (0); - return i; - } - res = GNUNET_STRINGS_string_to_data (str, strlen (str), - spec[i].details.fixed_data.dest, - spec[i].details.fixed_data.dest_size); - if (GNUNET_OK != res) - { - GNUNET_break_op (0); - return i; - } - } - break; - - case MAJ_CMD_BINARY_VARIABLE: - { - const char *str; - size_t size; - void *data; - int res; - - str = json_string_value (pos); - if (NULL == str) - { - GNUNET_break_op (0); - return i; - } - size = (strlen (str) * 5) / 8; - if (size >= 1024) - { - GNUNET_break_op (0); - return i; - } - data = GNUNET_malloc (size); - res = GNUNET_STRINGS_string_to_data (str, - strlen (str), - data, - size); - if (GNUNET_OK != res) - { - GNUNET_break_op (0); - GNUNET_free (data); - return i; - } - *spec[i].details.variable_data.dest_p = data; - *spec[i].details.variable_data.dest_size_p = size; - } - break; - - case MAJ_CMD_RSA_PUBLIC_KEY: - { - size_t size; - const char *str; - int res; - void *buf; - - str = json_string_value (pos); - if (NULL == str) - { - GNUNET_break_op (0); - return i; - } - size = (strlen (str) * 5) / 8; - buf = GNUNET_malloc (size); - res = GNUNET_STRINGS_string_to_data (str, - strlen (str), - buf, - size); - if (GNUNET_OK != res) - { - GNUNET_free (buf); - GNUNET_break_op (0); - return i; - } - *spec[i].details.rsa_public_key - = GNUNET_CRYPTO_rsa_public_key_decode (buf, - size); - GNUNET_free (buf); - if (NULL == spec[i].details.rsa_public_key) - { - GNUNET_break_op (0); - return i; - } - } - break; - - case MAJ_CMD_RSA_SIGNATURE: - { - size_t size; - const char *str; - int res; - void *buf; - - str = json_string_value (pos); - if (NULL == str) - { - GNUNET_break_op (0); - return i; - } - size = (strlen (str) * 5) / 8; - buf = GNUNET_malloc (size); - res = GNUNET_STRINGS_string_to_data (str, - strlen (str), - buf, - size); - if (GNUNET_OK != res) - { - GNUNET_free (buf); - GNUNET_break_op (0); - return i; - } - *spec[i].details.rsa_signature - = GNUNET_CRYPTO_rsa_signature_decode (buf, - size); - GNUNET_free (buf); - if (NULL == spec[i].details.rsa_signature) - return i; - } - break; - - case MAJ_CMD_UINT16: - { - json_int_t val; - - if (! json_is_integer (pos)) - { - GNUNET_break_op (0); - return i; - } - val = json_integer_value (pos); - if ( (0 > val) || (val > UINT16_MAX) ) - { - GNUNET_break_op (0); - return i; - } - *spec[i].details.u16 = (uint16_t) val; - } - break; - - case MAJ_CMD_UINT64: - { - json_int_t val; - - if (! json_is_integer (pos)) - { - GNUNET_break_op (0); - return i; - } - val = json_integer_value (pos); - *spec[i].details.u64 = (uint64_t) val; - } - break; - - case MAJ_CMD_JSON_OBJECT: - { - if (! (json_is_object (pos) || json_is_array (pos)) ) - { - GNUNET_break_op (0); - return i; - } - json_incref (pos); - *spec[i].details.obj = pos; - } - break; - - default: - GNUNET_break (0); - return i; - } - } - return -1; /* all OK! */ -} - - -/** - * Free all elements allocated during a - * #MAJ_parse_json() operation. - * - * @param spec specification of the parse operation - * @param end number of elements in @a spec to process - */ -static void -parse_free (struct MAJ_Specification *spec, - int end) -{ - int i; - - for (i=0;i<end;i++) - { - switch (spec[i].cmd) - { - case MAJ_CMD_END: - GNUNET_assert (0); - return; - case MAJ_CMD_AMOUNT: - break; - case MAJ_CMD_TIME_ABSOLUTE: - break; - case MAJ_CMD_BINARY_FIXED: - break; - case MAJ_CMD_STRING: - break; - case MAJ_CMD_BINARY_VARIABLE: - GNUNET_free (*spec[i].details.variable_data.dest_p); - *spec[i].details.variable_data.dest_p = NULL; - *spec[i].details.variable_data.dest_size_p = 0; - break; - case MAJ_CMD_RSA_PUBLIC_KEY: - GNUNET_CRYPTO_rsa_public_key_free (*spec[i].details.rsa_public_key); - *spec[i].details.rsa_public_key = NULL; - break; - case MAJ_CMD_RSA_SIGNATURE: - GNUNET_CRYPTO_rsa_signature_free (*spec[i].details.rsa_signature); - *spec[i].details.rsa_signature = NULL; - break; - case MAJ_CMD_JSON_OBJECT: - json_decref (*spec[i].details.obj); - *spec[i].details.obj = NULL; - break; - default: - GNUNET_break (0); - break; - } - } -} - - -/** - * Navigate and parse data in a JSON tree. - * - * @param root the JSON node to start the navigation at. - * @param spec parse specification array - * @return #GNUNET_OK on success, #GNUNET_SYSERR on error - */ -int -MAJ_parse_json (const json_t *root, - struct MAJ_Specification *spec) -{ - int ret; - - ret = parse_json ((json_t *) root, - spec); - if (-1 == ret) - return GNUNET_OK; - GNUNET_log (GNUNET_ERROR_TYPE_ERROR, - "JSON field `%s` (%d) had unexpected value\n", - spec[ret].field, - ret); - parse_free (spec, ret); - return GNUNET_SYSERR; -} - - -/** - * Free all elements allocated during a - * #MAJ_parse_json() operation. - * - * @param spec specification of the parse operation - */ -void -MAJ_parse_free (struct MAJ_Specification *spec) -{ - int i; - - for (i=0;MAJ_CMD_END != spec[i].cmd;i++) ; - parse_free (spec, i); -} - - -/** - * The expected field stores a string. - * - * @param name name of the JSON field - * @param strptr where to store a pointer to the field - */ -struct MAJ_Specification -MAJ_spec_string (const char *name, - const char **strptr) -{ - struct MAJ_Specification ret = - { - .cmd = MAJ_CMD_STRING, - .field = name, - .details.strptr = strptr - }; - return ret; -} - - -/** - * Specification for parsing an absolute time value. - * - * @param name name of the JSON field - * @param at where to store the absolute time found under @a name - */ -struct MAJ_Specification -MAJ_spec_absolute_time (const char *name, - struct GNUNET_TIME_Absolute *at) -{ - struct MAJ_Specification ret = - { - .cmd = MAJ_CMD_TIME_ABSOLUTE, - .field = name, - .details.abs_time = at - }; - return ret; -} - - -/** - * Specification for parsing an amount value. - * - * @param name name of the JSON field - * @param amount where to store the amount found under @a name - */ -struct MAJ_Specification -MAJ_spec_amount (const char *name, - struct TALER_Amount *amount) -{ - struct MAJ_Specification ret = - { - .cmd = MAJ_CMD_AMOUNT, - .field = name, - .details.amount = amount - }; - return ret; -} - - -/** - * 16-bit integer. - * - * @param name name of the JSON field - * @param[out] u16 where to store the integer found under @a name - */ -struct MAJ_Specification -MAJ_spec_uint16 (const char *name, - uint16_t *u16) -{ - struct MAJ_Specification ret = - { - .cmd = MAJ_CMD_UINT16, - .field = name, - .details.u16 = u16 - }; - return ret; -} - - -/** - * 64-bit integer. - * - * @param name name of the JSON field - * @param[out] u64 where to store the integer found under @a name - */ -struct MAJ_Specification -MAJ_spec_uint64 (const char *name, - uint64_t *u64) -{ - struct MAJ_Specification ret = - { - .cmd = MAJ_CMD_UINT64, - .field = name, - .details.u64 = u64 - }; - return ret; -} - - -/** - * JSON object. - * - * @param name name of the JSON field - * @param[out] jsonp where to store the JSON found under @a name - */ -struct MAJ_Specification -MAJ_spec_json (const char *name, - json_t **jsonp) -{ - struct MAJ_Specification ret = - { - .cmd = MAJ_CMD_JSON_OBJECT, - .field = name, - .details.obj = jsonp - }; - return ret; -} - - -/** - * Specification for parsing an RSA public key. - * - * @param name name of the JSON field - * @param pk where to store the RSA key found under @a name - */ -struct MAJ_Specification -MAJ_spec_rsa_public_key (const char *name, - struct GNUNET_CRYPTO_rsa_PublicKey **pk) -{ - struct MAJ_Specification ret = - { - .cmd = MAJ_CMD_RSA_PUBLIC_KEY, - .field = name, - .details.rsa_public_key = pk - }; - return ret; -} - - -/** - * Specification for parsing an RSA signature. - * - * @param name name of the JSON field - * @param sig where to store the RSA signature found under @a name - */ -struct MAJ_Specification -MAJ_spec_rsa_signature (const char *name, - struct GNUNET_CRYPTO_rsa_Signature **sig) -{ - struct MAJ_Specification ret = - { - .cmd = MAJ_CMD_RSA_SIGNATURE, - .field = name, - .details.rsa_signature = sig - }; - return ret; -} - - -/* end of exchange_api_json.c */ |