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diff --git a/src/exchange/taler-exchange-httpd.h b/src/exchange/taler-exchange-httpd.h
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+++ b/src/exchange/taler-exchange-httpd.h
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+/*
+  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 taler-exchange-httpd.h
+ * @brief Global declarations for the exchange
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ *
+ * FIXME: Consider which of these need to really be globals...
+ */
+#ifndef TALER_EXCHANGE_HTTPD_H
+#define TALER_EXCHANGE_HTTPD_H
+
+#include <microhttpd.h>
+
+
+/**
+ * Which currency is used by this exchange?
+ */
+extern char *TMH_exchange_currency_string;
+
+/**
+ * Should we return "Connection: close" in each response?
+ */
+extern int TMH_exchange_connection_close;
+
+/**
+ * The exchange's configuration.
+ */
+extern struct GNUNET_CONFIGURATION_Handle *cfg;
+
+/**
+ * Are we running in test mode?
+ */
+extern int TMH_test_mode;
+
+/**
+ * Main directory with exchange data.
+ */
+extern char *TMH_exchange_directory;
+
+/**
+ * Master public key (according to the
+ * configuration in the exchange directory).
+ */
+extern struct GNUNET_CRYPTO_EddsaPublicKey TMH_master_public_key;
+
+/**
+ * Private key of the exchange we use to sign messages.
+ */
+extern struct GNUNET_CRYPTO_EddsaPrivateKey TMH_exchange_private_signing_key;
+
+/**
+ * Our DB plugin.
+ */
+extern struct TALER_EXCHANGEDB_Plugin *TMH_plugin;
+
+
+/**
+ * @brief Struct describing an URL and the handler for it.
+ */
+struct TMH_RequestHandler
+{
+
+  /**
+   * URL the handler is for.
+   */
+  const char *url;
+
+  /**
+   * Method the handler is for, NULL for "all".
+   */
+  const char *method;
+
+  /**
+   * Mime type to use in reply (hint, can be NULL).
+   */
+  const char *mime_type;
+
+  /**
+   * Raw data for the @e handler
+   */
+  const void *data;
+
+  /**
+   * Number of bytes in @e data, 0 for 0-terminated.
+   */
+  size_t data_size;
+
+  /**
+   * Function to call to handle the request.
+   *
+   * @param rh this struct
+   * @param mime_type the @e mime_type for the reply (hint, can be NULL)
+   * @param connection the MHD connection to handle
+   * @param[in,out] connection_cls the connection's closure (can be updated)
+   * @param upload_data upload data
+   * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+   * @return MHD result code
+   */
+  int (*handler)(struct TMH_RequestHandler *rh,
+                 struct MHD_Connection *connection,
+                 void **connection_cls,
+                 const char *upload_data,
+                 size_t *upload_data_size);
+
+  /**
+   * Default response code.
+   */
+  int response_code;
+};
+
+
+#endif