The tree has got back its original layout (i.e. getting rid of this

'melted' directory) and *a lot* of files from the mint's tree have been
imported there. The main expectation is to cut off from these imported files
as much as source code possible, which is actually not needed; although
presumably, that will regard just a small percentage of that source code.

1 files changed, 181 insertions, 0 deletions

diff --git a/src/backend/taler_json_lib.h b/src/backend/taler_json_lib.h
new file mode 100644
index 00000000..5a13b9bc
--- /dev/null
+++ b/src/backend/taler_json_lib.h
@@ -0,0 +1,181 @@
+/*
+  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 */