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-/*
- This file is part of TALER
- Copyright (C) 2014, 2015 Christian Grothoff (and other contributing authors)
-
- 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, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file include/taler_json_lib.h
- * @brief helper functions for JSON processing using libjansson
- * @author Sree Harsha Totakura <sreeharsha@totakura.in>
- */
-#ifndef TALER_json_LIB_H_
-#define TALER_json_LIB_H_
-
-#include <jansson.h>
-
-/**
- * Print JSON parsing related error information
- */
-#define TALER_json_warn(error) \
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, \
- "JSON parsing failed at %s:%u: %s (%s)\n", \
- __FILE__, __LINE__, error.text, error.source)
-
-
-/**
- * Convert a TALER amount to a JSON object.
- *
- * @param amount the amount
- * @return a json object describing the amount
- */
-json_t *
-TALER_json_from_amount (const struct TALER_Amount *amount);
-
-
-/**
- * Convert absolute timestamp to a json string.
- *
- * @param stamp the time stamp
- * @return a json string with the timestamp in @a stamp
- */
-json_t *
-TALER_json_from_abs (struct GNUNET_TIME_Absolute stamp);
-
-
-/**
- * Convert a signature (with purpose) to a JSON object representation.
- *
- * @param purpose purpose of the signature
- * @param signature the signature
- * @return the JSON reporesentation of the signature with purpose
- */
-json_t *
-TALER_json_from_eddsa_sig (const struct GNUNET_CRYPTO_EccSignaturePurpose *purpose,
- const struct GNUNET_CRYPTO_EddsaSignature *signature);
-
-
-/**
- * Convert RSA public key to JSON.
- *
- * @param pk public key to convert
- * @return corresponding JSON encoding
- */
-json_t *
-TALER_json_from_rsa_public_key (struct GNUNET_CRYPTO_rsa_PublicKey *pk);
-
-
-/**
- * Convert RSA signature to JSON.
- *
- * @param sig signature to convert
- * @return corresponding JSON encoding
- */
-json_t *
-TALER_json_from_rsa_signature (struct GNUNET_CRYPTO_rsa_Signature *sig);
-
-
-/**
- * Convert binary data to a JSON string
- * with the base32crockford encoding.
- *
- * @param data binary data
- * @param size size of @a data in bytes
- * @return json string that encodes @a data
- */
-json_t *
-TALER_json_from_data (const void *data, size_t size);
-
-
-/**
- * Parse given JSON object to Amount
- *
- * @param json the json object representing Amount
- * @param[out] r_amount where the amount has to be written
- * @return #GNUNET_OK upon successful parsing; #GNUNET_SYSERR upon error
- */
-int
-TALER_json_to_amount (json_t *json,
- struct TALER_Amount *r_amount);
-
-/**
- * Parse given JSON object to absolute time.
- *
- * @param json the json object representing absolute time in seconds
- * @param[out] abs where the time has to be written
- * @return #GNUNET_OK upon successful parsing; #GNUNET_SYSERR upon error
- */
-int
-TALER_json_to_abs (json_t *json,
- struct GNUNET_TIME_Absolute *abs);
-
-/**
- * Parse given JSON object to data
- *
- * @param json the json object representing data
- * @param out the pointer to hold the parsed data.
- * @param out_size the size of @a out
- * @return #GNUNET_OK upon successful parsing; #GNUNET_SYSERR upon error
- */
-int
-TALER_json_to_data (json_t *json,
- void *out,
- size_t out_size);
-
-
-/**
- * Convert JSON to RSA public key.
- *
- * @param json JSON encoding to convert
- * @return corresponding public key
- */
-struct GNUNET_CRYPTO_rsa_PublicKey *
-TALER_json_to_rsa_public_key (json_t *json);
-
-
-/**
- * Convert JSON to RSA signature.
- *
- * @param json JSON encoding to convert
- * @return corresponding signature
- */
-struct GNUNET_CRYPTO_rsa_Signature *
-TALER_json_to_rsa_signature (json_t *json);
-
-
-/**
- * Hash a JSON for binary signing.
- *
- * @param[in] json some JSON value to hash
- * @param[out] hc resulting hash code
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
- */
-int
-TALER_hash_json (json_t *json,
- struct GNUNET_HashCode *hc);
-
-
-/**
- * Check if the given wire format JSON object is correctly formatted
- *
- * @param type the type of the wire format
- * @param wire the JSON wire format object
- * @return #GNUNET_YES if correctly formatted; #GNUNET_NO if not
- */
-int
-TALER_json_validate_wireformat (const char *type,
- const json_t *wire);
-
-
-#endif /* TALER_json_LIB_H_ */
-
-/* End of taler_json_lib.h */