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-rw-r--r--src/include/taler_error_codes.h761
1 files changed, 760 insertions, 1 deletions
diff --git a/src/include/taler_error_codes.h b/src/include/taler_error_codes.h
index bbb300440..3c3ddcfd4 100644
--- a/src/include/taler_error_codes.h
+++ b/src/include/taler_error_codes.h
@@ -35,10 +35,769 @@ enum TALER_ErrorCode
/**
* Special code to indicate no error.
*/
- TALER_EC_NONE = 0
+ TALER_EC_NONE = 0,
+ /* ********** generic error codes ************* */
+
+ /**
+ * The exchange failed to even just initialize its connection to the
+ * database.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_DB_SETUP_FAILED = 1001,
+
+ /**
+ * The exchange encountered an error event to just start
+ * the database transaction.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_DB_START_FAILED = 1002,
+
+ /**
+ * The exchange encountered an error event to commit
+ * the database transaction (hard, unrecoverable error).
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_DB_COMMIT_FAILED_HARD = 1003,
+
+ /**
+ * The exchange encountered an error event to commit
+ * the database transaction, even after repeatedly
+ * retrying it there was always a conflicting transaction.
+ * (This indicates a repeated serialization error; should
+ * only happen if some client maliciously tries to create
+ * conflicting concurrent transactions.)
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_DB_COMMIT_FAILED_ON_RETRY = 1004,
+
+ /**
+ * The exchange had insufficient memory to parse the request. This
+ * response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_PARSER_OUT_OF_MEMORY = 1005,
+
+ /**
+ * The JSON in the client's request to the exchange was malformed.
+ * (Generic parse error).
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_JSON_INVALID = 1006,
+
+ /**
+ * The JSON in the client's request to the exchange was malformed.
+ * Details about the location of the parse error are provided.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_JSON_INVALID_WITH_DETAILS = 1007,
+
+ /**
+ * A required parameter in the request to the exchange was missing.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_PARAMETER_MISSING = 1008,
+
+ /**
+ * A parameter in the request to the exchange was malformed.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_PARAMETER_MALFORMED = 1009,
+
+ /* ********** request-specific error codes ************* */
+
+ /**
+ * The given reserve does not have sufficient funds to admit the
+ * requested withdraw operation at this time. The response includes
+ * the current "balance" of the reserve as well as the transaction
+ * "history" that lead to this balance. This response is provided
+ * with HTTP status code MHD_HTTP_FORBIDDEN.
+ */
+ TALER_EC_WITHDRAW_INSUFFICIENT_FUNDS = 1100,
+
+ /**
+ * The exchange has no information about the "reserve_pub" that
+ * was given.
+ * This response is provided with HTTP status code MHD_HTTP_NOT_FOUND.
+ */
+ TALER_EC_WITHDRAW_RESERVE_UNKNOWN = 1101,
+
+ /**
+ * The amount to withdraw together with the fee exceeds the
+ * numeric range for Taler amounts. This is not a client
+ * failure, as the coin value and fees come from the exchange's
+ * configuration.
+ * This response is provided with HTTP status code MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_WITHDRAW_AMOUNT_FEE_OVERFLOW = 1102,
+
+ /**
+ * All of the deposited amounts into this reserve total up to a
+ * value that is too big for the numeric range for Taler amounts.
+ * This is not a client failure, as the transaction history comes
+ * from the exchange's configuration. This response is provided
+ * with HTTP status code MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_WITHDRAW_AMOUNT_DEPOSITS_OVERFLOW = 1103,
+
+ /**
+ * For one of the historic withdrawals from this reserve, the
+ * exchange could not find the denomination key.
+ * This is not a client failure, as the transaction history comes
+ * from the exchange's configuration. This response is provided
+ * with HTTP status code MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_WITHDRAW_HISTORIC_DENOMINATION_KEY_NOT_FOUND = 1104,
+
+ /**
+ * All of the withdrawals from reserve total up to a
+ * value that is too big for the numeric range for Taler amounts.
+ * This is not a client failure, as the transaction history comes
+ * from the exchange's configuration. This response is provided
+ * with HTTP status code MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_WITHDRAW_AMOUNT_WITHDRAWALS_OVERFLOW = 1105,
+
+ /**
+ * The exchange somehow knows about this reserve, but there seem to
+ * have been no wire transfers made. This is not a client failure,
+ * as this is a database consistency issue of the exchange. This
+ * response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_WITHDRAW_RESERVE_WITHOUT_WIRE_TRANSFER = 1106,
+
+ /**
+ * The exchange failed to create the signature using the
+ * denomination key. This response is provided with HTTP status
+ * code MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_WITHDRAW_SIGNATURE_FAILED = 1107,
+
+ /**
+ * The exchange failed to store the withdraw operation in its
+ * database. This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_WITHDRAW_DB_STORE_ERROR = 1108,
+
+ /**
+ * The exchange failed to check against historic withdraw data from
+ * database (as part of ensuring the idempotency of the operation).
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_WITHDRAW_DB_FETCH_ERROR = 1109,
+
+ /**
+ * The exchange is not aware of the denomination key
+ * the wallet requested for the withdrawal.
+ * This response is provided
+ * with HTTP status code MHD_HTTP_NOT_FOUND.
+ */
+ TALER_EC_WITHDRAW_DENOMINATION_KEY_NOT_FOUND = 1110,
+
+ /**
+ * The signature of the reserve is not valid. This response is
+ * provided with HTTP status code MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_WITHDRAW_RESERVE_SIGNATURE_INVALID = 1111,
+
+ /**
+ * The exchange failed to obtain the transaction history of the
+ * given reserve from the database while generating an insufficient
+ * funds errors.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_WITHDRAW_HISTORY_DB_ERROR_INSUFFICIENT_FUNDS = 1112,
+
+ /**
+ * The exchange failed to obtain the transaction history of the
+ * given reserve from the database.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_RESERVE_STATUS_DB_ERROR = 1150,
+
+
+ /**
+ * The respective coin did not have sufficient residual value
+ * for the /deposit operation (i.e. due to double spending).
+ * The "history" in the respose provides the transaction history
+ * of the coin proving this fact. This response is provided
+ * with HTTP status code MHD_HTTP_FORBIDDEN.
+ */
+ TALER_EC_DEPOSIT_INSUFFICIENT_FUNDS = 1200,
+
+ /**
+ * The exchange failed to obtain the transaction history of the
+ * given coin from the database (this does not happen merely because
+ * the coin is seen by the exchange for the first time).
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_DEPOSIT_HISTORY_DB_ERROR = 1201,
+
+ /**
+ * The exchange failed to store the /depost information in the
+ * database. This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_DEPOSIT_STORE_DB_ERROR = 1202,
+
+ /**
+ * The exchange database is unaware of the denomination key that
+ * signed the coin (however, the exchange process is; this is not
+ * supposed to happen; it can happen if someone decides to purge the
+ * DB behind the back of the exchange process). Hence the deposit
+ * is being refused. This response is provided with HTTP status
+ * code MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_DEPOSIT_DB_DENOMINATION_KEY_UNKNOWN = 1203,
+
+ /**
+ * The exchange database is unaware of the denomination key that
+ * signed the coin (however, the exchange process is; this is not
+ * supposed to happen; it can happen if someone decides to purge the
+ * DB behind the back of the exchange process). Hence the deposit
+ * is being refused. This response is provided with HTTP status
+ * code MHD_HTTP_NOT_FOUND.
+ */
+ TALER_EC_DEPOSIT_DENOMINATION_KEY_UNKNOWN = 1204,
+
+ /**
+ * The signature of the coin is not valid. This response is
+ * provided with HTTP status code MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_DEPOSIT_COIN_SIGNATURE_INVALID = 1205,
+
+ /**
+ * The signature of the denomination key over the coin is not valid.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_DEPOSIT_DENOMINATION_SIGNATURE_INVALID = 1206,
+
+ /**
+ * The stated value of the coin after the deposit fee is subtracted
+ * would be negative.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_DEPOSIT_NEGATIVE_VALUE_AFTER_FEE = 1207,
+
+ /**
+ * The stated refund deadline is after the wire deadline.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_DEPOSIT_REFUND_DEADLINE_AFTER_WIRE_DEADLINE = 1208,
+
+ /**
+ * The exchange does not recognize the validity of or support the
+ * given wire (bank account) address. This response is provided
+ * with HTTP status code MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_DEPOSIT_INVALID_WIRE_FORMAT = 1209,
+
+ /**
+ * The exchange failed to canonicalize and hash the given wire format.
+ * This response is provided
+ * with HTTP status code MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_DEPOSIT_INVALID_WIRE_FORMAT_JSON = 1210,
+
+ /**
+ * The hash of the given wire address does not match the hash
+ * specified in the contract.
+ * This response is provided
+ * with HTTP status code MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_DEPOSIT_INVALID_WIRE_FORMAT_CONTRACT_HASH_CONFLICT = 1211,
+
+ /**
+ * The exchange failed to obtain the transaction history of the
+ * given coin from the database while generating an insufficient
+ * funds errors.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_DEPOSIT_HISTORY_DB_ERROR_INSUFFICIENT_FUNDS = 1212,
+
+ /**
+ * The respective coin did not have sufficient residual value
+ * for the /refresh/melt operation. The "history" in this
+ * response provdes the "residual_value" of the coin, which may
+ * be less than its "original_value". This response is provided
+ * with HTTP status code MHD_HTTP_FORBIDDEN.
+ */
+ TALER_EC_REFRESH_MELT_INSUFFICIENT_FUNDS = 1300,
+
+ /**
+ * The exchange is unaware of the denomination key that was
+ * used to sign the melted coin. This response is provided
+ * with HTTP status code MHD_HTTP_NOT_FOUND.
+ */
+ TALER_EC_REFRESH_MELT_DENOMINATION_KEY_NOT_FOUND = 1301,
+
+ /**
+ * The exchange had an internal error reconstructing the
+ * transaction history of the coin that was being melted.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_REFRESH_MELT_COIN_HISTORY_COMPUTATION_FAILED = 1302,
+
+ /**
+ * The exchange failed to check against historic melt data from
+ * database (as part of ensuring the idempotency of the operation).
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_REFRESH_MELT_DB_FETCH_ERROR = 1303,
+
+ /**
+ * The exchange failed to store session data in the
+ * database.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_REFRESH_MELT_DB_STORE_SESSION_ERROR = 1304,
+
+ /**
+ * The exchange failed to store refresh order data in the
+ * database.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_REFRESH_MELT_DB_STORE_ORDER_ERROR = 1305,
+
+ /**
+ * The exchange failed to store commit data in the
+ * database.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_REFRESH_MELT_DB_STORE_COMMIT_ERROR = 1306,
+
+ /**
+ * The exchange failed to store transfer keys in the
+ * database.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_REFRESH_MELT_DB_STORE_TRANSFER_ERROR = 1307,
+
+ /**
+ * The exchange is unaware of the denomination key that was
+ * requested for one of the fresh coins. This response is provided
+ * with HTTP status code MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_REFRESH_MELT_FRESH_DENOMINATION_KEY_NOT_FOUND = 1308,
+
+ /**
+ * The exchange encountered a numeric overflow totaling up
+ * the cost for the refresh operation. This response is provided
+ * with HTTP status code MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_REFRESH_MELT_COST_CALCULATION_OVERFLOW = 1309,
+
+ /**
+ * During the transaction phase, the exchange could suddenly
+ * no longer find the denomination key that was
+ * used to sign the melted coin. This response is provided
+ * with HTTP status code MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_REFRESH_MELT_DB_DENOMINATION_KEY_NOT_FOUND = 1310,
+
+ /**
+ * The exchange encountered melt fees exceeding the melted
+ * coin's contribution. This response is provided
+ * with HTTP status code MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_REFRESH_MELT_FEES_EXCEED_CONTRIBUTION = 1311,
+
+ /**
+ * The exchange's cost calculation does not add up to the
+ * melt fees specified in the request. This response is provided
+ * with HTTP status code MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_REFRESH_MELT_FEES_MISSMATCH = 1312,
+
+ /**
+ * The denomination key signature on the melted coin is invalid.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_REFRESH_MELT_DENOMINATION_SIGNATURE_INVALID = 1313,
+
+ /**
+ * The exchange's cost calculation shows that the melt amount
+ * is below the costs of the transaction. This response is provided
+ * with HTTP status code MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_REFRESH_MELT_AMOUNT_INSUFFICIENT = 1314,
+
+ /**
+ * The signature made with the coin to be melted is invalid.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_REFRESH_MELT_COIN_SIGNATURE_INVALID = 1315,
+
+ /**
+ * The size of the cut-and-choose dimension of the
+ * blinded coins request does not match #TALER_CNC_KAPPA.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_REFRESH_MELT_CNC_COIN_ARRAY_SIZE_INVALID = 1316,
+
+ /**
+ * The size of the cut-and-choose dimension of the
+ * transfer keys request does not match #TALER_CNC_KAPPA.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_REFRESH_MELT_CNC_TRANSFER_ARRAY_SIZE_INVALID = 1317,
+
+ /**
+ * The exchange failed to obtain the transaction history of the
+ * given coin from the database while generating an insufficient
+ * funds errors.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_REFRESH_MELT_HISTORY_DB_ERROR_INSUFFICIENT_FUNDS = 1318,
+
+ /**
+ * The provided transfer keys do not match up with the
+ * original commitment. Information about the original
+ * commitment is included in the response. This response is
+ * provided with HTTP status code MHD_HTTP_CONFLICT.
+ */
+ TALER_EC_REFRESH_REVEAL_COMMITMENT_VIOLATION = 1350,
+
+ /**
+ * Failed to blind the envelope to reconstruct the blinded
+ * coins for revealation checks.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_REFRESH_REVEAL_BLINDING_ERROR = 1351,
+
+ /**
+ * Failed to produce the blinded signatures over the coins
+ * to be returned.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_REFRESH_REVEAL_SIGNING_ERROR = 1352,
+
+ /**
+ * The exchange is unaware of the refresh sessino specified in
+ * the request.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_REFRESH_REVEAL_SESSION_UNKNOWN = 1353,
+
+ /**
+ * The exchange failed to retrieve valid session data from the
+ * database.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_REFRESH_REVEAL_DB_FETCH_SESSION_ERROR = 1354,
+
+ /**
+ * The exchange failed to retrieve order data from the
+ * database.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_REFRESH_REVEAL_DB_FETCH_ORDER_ERROR = 1355,
+
+ /**
+ * The exchange failed to retrieve transfer keys from the
+ * database.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_REFRESH_REVEAL_DB_FETCH_TRANSFER_ERROR = 1356,
+
+ /**
+ * The exchange failed to retrieve commitment data from the
+ * database.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_ERROR.
+ */
+ TALER_EC_REFRESH_REVEAL_DB_FETCH_COMMIT_ERROR = 1357,
+
+ /**
+ * The size of the cut-and-choose dimension of the
+ * private transfer keys request does not match #TALER_CNC_KAPPA - 1.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_REFRESH_REVEAL_CNC_TRANSFER_ARRAY_SIZE_INVALID = 1358,
+
+
+ /**
+ * The coin specified in the link request is unknown to the exchange.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_NOT_FOUND.
+ */
+ TALER_EC_REFRESH_LINK_COIN_UNKNOWN = 1400,
+
+
+ /**
+ * The exchange knows literally nothing about the coin we were asked
+ * to refund. But without a transaction history, we cannot issue a
+ * refund. This is kind-of OK, the owner should just refresh it
+ * directly without executing the refund. This response is provided
+ * with HTTP status code MHD_HTTP_NOT_FOUND.
+ */
+ TALER_EC_REFUND_COIN_NOT_FOUND = 1500,
+
+ /**
+ * We could not process the refund request as the coin's transaction
+ * history does not permit the requested refund at this time. The
+ * "history" in the response proves this. This response is provided
+ * with HTTP status code MHD_HTTP_CONFLICT.
+ */
+ TALER_EC_REFUND_CONFLICT = 1501,
+
+ /**
+ * The exchange knows about the coin we were asked to refund, but
+ * not about the specific /deposit operation. Hence, we cannot
+ * issue a refund (as we do not know if this merchant public key is
+ * authorized to do a refund). This response is provided with HTTP
+ * status code MHD_HTTP_NOT_FOUND.
+ */
+ TALER_EC_REFUND_DEPOSIT_NOT_FOUND = 1503,
+ /**
+ * The currency specified for the refund is different from
+ * the currency of the coin. This response is provided with HTTP
+ * status code MHD_HTTP_PRECONDITION_FAILED.
+ */
+ TALER_EC_REFUND_CURRENCY_MISSMATCH = 1504,
+
+ /**
+ * When we tried to check if we already paid out the coin, the
+ * exchange's database suddenly disagreed with data it previously
+ * provided (internal inconsistency).
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_REFUND_DB_INCONSISTENT = 1505,
+ /**
+ * The exchange can no longer refund the customer/coin as the
+ * money was already transferred (paid out) to the merchant.
+ * (It should be past the refund deadline.)
+ * This response is provided with HTTP status code
+ * MHD_HTTP_GONE.
+ */
+ TALER_EC_REFUND_MERCHANT_ALREADY_PAID = 1506,
+
+ /**
+ * The amount the exchange was asked to refund exceeds
+ * (with fees) the total amount of the deposit (including fees).
+ * This response is provided with HTTP status code
+ * MHD_HTTP_PRECONDITION_FAILED.
+ */
+ TALER_EC_REFUND_INSUFFICIENT_FUNDS = 1507,
+
+ /**
+ * The exchange failed to recover information about the
+ * denomination key of the refunded coin (even though it
+ * recognizes the key). Hence it could not check the fee
+ * strucutre.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_REFUND_DENOMINATION_KEY_NOT_FOUND = 1508,
+
+ /**
+ * The refund fee specified for the request is lower than
+ * the refund fee charged by the exchange for the given
+ * denomination key of the refunded coin.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_REFUND_FEE_TOO_LOW = 1509,
+
+ /**
+ * The exchange failed to store the refund information to
+ * its database.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_REFUND_STORE_DB_ERROR = 1510,
+
+ /**
+ * The refund fee is specified in a different currency
+ * than the refund amount.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_REFUND_FEE_CURRENCY_MISSMATCH = 1511,
+
+ /**
+ * The refunded amount is smaller than the refund fee,
+ * which would result in a negative refund.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_REFUND_FEE_ABOVE_AMOUNT = 1512,
+
+ /**
+ * The signature of the merchant is invalid.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_REFUND_MERCHANT_SIGNATURE_INVALID = 1513,
+
+
+ /**
+ * The wire format specified in the "sender_account_details"
+ * is not understood or not supported by this exchange.
+ * Returned with an HTTP status code of MHD_HTTP_NOT_FOUND.
+ * (As we did not find an interpretation of the wire format.)
+ */
+ TALER_EC_ADMIN_ADD_INCOMING_WIREFORMAT_UNSUPPORTED = 1600,
+
+ /**
+ * The currency specified in the "amount" parameter is not
+ * supported by this exhange. Returned with an HTTP status
+ * code of MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_ADMIN_ADD_INCOMING_CURRENCY_UNSUPPORTED = 1601,
+
+ /**
+ * The exchange failed to store information about the incoming
+ * transfer in its database. This response is provided with HTTP
+ * status code MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_ADMIN_ADD_INCOMING_DB_STORE = 1602,
+
+ /**
+ * The exchange encountered an error (that is not about not finding
+ * the wire transfer) trying to lookup a wire transfer identifier
+ * in the database. This response is provided with HTTP
+ * status code MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_TRACK_TRANSFER_DB_FETCH_FAILED = 1700,
+
+ /**
+ * The exchange found internally inconsistent data when resolving a
+ * wire transfer identifier in the database. This response is
+ * provided with HTTP status code MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_TRACK_TRANSFER_DB_INCONSISTENT = 1701,
+
+ /**
+ * The exchange did not find information about the specified
+ * wire transfer identifier in the database. This response is
+ * provided with HTTP status code MHD_HTTP_NOT_FOUND.
+ */
+ TALER_EC_TRACK_TRANSFER_WTID_NOT_FOUND = 1702,
+
+
+ /**
+ * The exchange found internally inconsistent fee data when
+ * resolving a transaction in the database. This
+ * response is provided with HTTP status code
+ * MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_TRACK_TRANSACTION_DB_FEE_INCONSISTENT = 1800,
+
+ /**
+ * The exchange encountered an error (that is not about not finding
+ * the transaction) trying to lookup a transaction
+ * in the database. This response is provided with HTTP
+ * status code MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_TRACK_TRANSACTION_DB_FETCH_FAILED = 1801,
+
+ /**
+ * The exchange did not find information about the specified
+ * transaction in the database. This response is
+ * provided with HTTP status code MHD_HTTP_NOT_FOUND.
+ */
+ TALER_EC_TRACK_TRANSACTION_NOT_FOUND = 1802,
+
+ /**
+ * The exchange failed to identify the wire transfer of the
+ * transaction (or information about the plan that it was supposed
+ * to still happen in the future). This response is provided with
+ * HTTP status code MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_TRACK_TRANSACTION_WTID_RESOLUTION_ERROR = 1803,
+
+ /**
+ * The signature of the merchant is invalid.
+ * This response is provided with HTTP status code
+ * MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_TRACK_TRANSACTION_MERCHANT_SIGNATURE_INVALID = 1804,
+
+
+ /* ********** /test API error codes ************* */
+
+ /**
+ * The exchange failed to compute ECDH. This response is provided
+ * with HTTP status code MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_TEST_ECDH_ERROR = 4000,
+
+ /**
+ * The EdDSA test signature is invalid. This response is provided
+ * with HTTP status code MHD_HTTP_BAD_REQUEST.
+ */
+ TALER_EC_TEST_EDDSA_INVALID = 4001,
+
+ /**
+ * The exchange failed to compute the EdDSA test signature. This response is provided
+ * with HTTP status code MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_TEST_EDDSA_ERROR = 4002,
+
+ /**
+ * The exchange failed to generate an RSA key. This response is provided
+ * with HTTP status code MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_TEST_RSA_GEN_ERROR = 4003,
+
+ /**
+ * The exchange failed to compute the public RSA key. This response
+ * is provided with HTTP status code MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_TEST_RSA_PUB_ERROR = 4004,
+
+ /**
+ * The exchange failed to compute the RSA signature. This response
+ * is provided with HTTP status code MHD_HTTP_INTERNAL_SERVER_ERROR.
+ */
+ TALER_EC_TEST_RSA_SIGN_ERROR = 4005,
+
+
+ /**
+ * End of error code range.
+ */
+ TALER_EC_END = 9999
+
};