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/*
 * librest - RESTful web services access
 * Copyright (c) 2008, 2009, Intel Corporation.
 *
 * Authors: Rob Bradford <rob@linux.intel.com>
 *          Ross Burton <ross@linux.intel.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU Lesser General Public License,
 * version 2.1, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
 * more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
 *
 */

#include <string.h>
#include <libsoup/soup.h>
#include <rest/rest-proxy-call.h>
#include "flickr-proxy-call.h"
#include "flickr-proxy-private.h"
#include "rest/rest-proxy-call-private.h"
#include "rest/sha1.h"

G_DEFINE_TYPE (FlickrProxyCall, flickr_proxy_call, REST_TYPE_PROXY_CALL)

#define GET_PRIVATE(o) \
  (G_TYPE_INSTANCE_GET_PRIVATE ((o), FLICKR_TYPE_PROXY_CALL, FlickrProxyCallPrivate))

typedef struct {
  gboolean upload;
} FlickrProxyCallPrivate;

enum {
  PROP_0,
  PROP_UPLOAD
};

static void
flickr_proxy_call_set_property (GObject      *object,
                                guint         property_id,
                                const GValue *value,
                                GParamSpec   *pspec)
{
   switch (property_id) {
   case PROP_UPLOAD:
     GET_PRIVATE (object)->upload = g_value_get_boolean (value);
     break;
   default:
     G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
   }
}

static gboolean
_prepare (RestProxyCall *call, GError **error)
{
  FlickrProxy *proxy = NULL;
  FlickrProxyPrivate *priv;
  RestProxyCallPrivate *call_priv;
  GHashTable *params;
  char *s;

  g_object_get (call, "proxy", &proxy, NULL);
  priv = FLICKR_PROXY_GET_PRIVATE (proxy);
  call_priv = call->priv;

  /* We need to reset the URL because Flickr puts the function in the parameters */

  if (GET_PRIVATE (call)->upload) {
    call_priv->url = g_strdup ("http://api.flickr.com/services/upload/");
  } else {
    call_priv->url = g_strdup ("http://api.flickr.com/services/rest/");
    rest_proxy_call_add_param (call, "method", call_priv->function);
  }

  rest_proxy_call_add_param (call, "api_key", priv->api_key);

  if (priv->token)
    rest_proxy_call_add_param (call, "auth_token", priv->token);

  /* Get the string params as a hash for signing */
  params = rest_params_as_string_hash_table (call_priv->params);
  s = flickr_proxy_sign (proxy, params);
  g_hash_table_unref (params);

  rest_proxy_call_add_param (call, "api_sig", s);
  g_free (s);

  g_object_unref (proxy);

  return TRUE;
}

static void
flickr_proxy_call_class_init (FlickrProxyCallClass *klass)
{
  RestProxyCallClass *call_class = REST_PROXY_CALL_CLASS (klass);
  GObjectClass *obj_class = G_OBJECT_CLASS (klass);
  GParamSpec *pspec;

  g_type_class_add_private (klass, sizeof (FlickrProxyCallPrivate));

  call_class->prepare = _prepare;
  obj_class->set_property = flickr_proxy_call_set_property;

  /**
   * FlickrProxyCall:upload:
   *
   * Set if the call should be sent to the photo upload endpoint and not the
   * general-purpose endpoint.
   */
  pspec = g_param_spec_boolean ("upload", "upload", "upload",
                                FALSE, G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
  g_object_class_install_property (obj_class, PROP_UPLOAD, pspec);
}

static void
flickr_proxy_call_init (FlickrProxyCall *self)
{
}

#if BUILD_TESTS
#warning TODO flickr signature test cases
#endif