1 files changed, 183 insertions, 0 deletions

diff --git a/src/fs/common.c b/src/fs/common.c
new file mode 100644
index 00000000..f586a3d4
--- /dev/null
+++ b/src/fs/common.c
@@ -0,0 +1,183 @@
+/*
+     This file is part of GNUnet.
+     (C) 2010 Christian Grothoff (and other contributing authors)
+
+     GNUnet 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 2, or (at your
+     option) any later version.
+
+     GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+     Boston, MA 02111-1307, USA.
+*/
+
+/**
+ * @file src/fs/common.c
+ * @brief Common functions used in various places
+ * @author Christian Grothoff
+ */
+#include "common.h"
+
+/**
+ * Add meta data to list store.
+ *
+ * @param cls closure (the GtkListStore)
+ * @param plugin_name name of the plugin that produced this value;
+ *        special values can be used (i.e. '<zlib>' for zlib being
+ *        used in the main libextractor library and yielding
+ *        meta data).
+ * @param type libextractor-type describing the meta data
+ * @param format basic format information about data 
+ * @param data_mime_type mime-type of data (not of the original file);
+ *        can be NULL (if mime-type is not known)
+ * @param data actual meta-data found
+ * @param data_len number of bytes in data
+ * @return 0 to continue (always)
+ */ 
+int
+GNUNET_FS_GTK_add_meta_data_to_list_store (void *cls,
+                                           const char *plugin_name,
+                                           enum EXTRACTOR_MetaType type,
+                                           enum EXTRACTOR_MetaFormat format,
+                                           const char *data_mime_type,
+                                           const char *data,
+                                           size_t data_len)
+{
+  GtkListStore *ls = GTK_LIST_STORE (cls);
+
+  if ( (format == EXTRACTOR_METAFORMAT_UTF8) ||
+       (format == EXTRACTOR_METAFORMAT_C_STRING) )
+    gtk_list_store_insert_with_values (ls,
+                                       NULL,
+                                       G_MAXINT,
+                                       0, type,
+                                       1, format,
+                                       2, EXTRACTOR_metatype_to_string (type),
+                                       3, data,
+                                       -1);
+  return 0;
+}
+
+
+/**
+ * Convert the year from the spin button to an expiration
+ * time (on midnight, January 1st of that year).
+ */
+struct GNUNET_TIME_Absolute 
+GNUNET_FS_GTK_get_expiration_time (GtkSpinButton *spin)
+{
+  struct GNUNET_TIME_Absolute ret;
+  int year;
+
+  year = gtk_spin_button_get_value_as_int (spin);
+  GNUNET_assert (year >= 0);
+  ret = GNUNET_FS_year_to_time ( (unsigned int) year);
+  GNUNET_break (GNUNET_TIME_absolute_get ().abs_value < ret.abs_value);
+  return ret;
+}
+
+
+void
+GNUNET_FS_GTK_setup_expiration_year_adjustment (GtkBuilder *builder)
+{
+  GtkAdjustment *aj;
+  unsigned int year;
+
+  year = GNUNET_FS_get_current_year ();
+  aj = GTK_ADJUSTMENT (gtk_builder_get_object (builder,
+                                               "expiration_year_adjustment"));
+  gtk_adjustment_set_value (aj, year + 2);
+  gtk_adjustment_set_lower (aj, year + 1);
+}
+
+
+GdkPixbuf *
+GNUNET_FS_GTK_get_thumbnail_from_meta_data (const struct GNUNET_CONTAINER_MetaData *meta)
+{
+  GdkPixbuf *pixbuf;
+  GdkPixbufLoader *loader;
+  size_t ts;
+  unsigned char *thumb;
+
+  thumb = NULL;
+  ts = GNUNET_CONTAINER_meta_data_get_thumbnail (meta, &thumb);
+  if (ts == 0)
+    return NULL;
+  loader = gdk_pixbuf_loader_new ();
+  gdk_pixbuf_loader_write (loader, (const guchar *) thumb, ts, NULL);
+  pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
+  gdk_pixbuf_loader_close (loader, NULL);
+  if (pixbuf != NULL)
+    g_object_ref (pixbuf);
+  g_object_unref (loader);
+  GNUNET_free (thumb);
+  return pixbuf;
+}
+
+
+/**
+ * mmap the given file and run the GNUNET_FS_directory_list_contents
+ * function on it.
+ */
+void
+GNUNET_FS_GTK_mmap_and_scan (const char *filename,
+                             GNUNET_FS_DirectoryEntryProcessor dep,
+                             void *dep_cls)
+{
+  struct GNUNET_DISK_FileHandle *fh;
+  struct GNUNET_DISK_MapHandle *mh;
+  uint64_t fsize;
+  void * ddata;
+
+  if (GNUNET_OK !=
+      GNUNET_DISK_file_size (filename,
+                             &fsize,
+                             GNUNET_YES))
+    {
+      GNUNET_break (0);
+      return;
+    }
+  fh = GNUNET_DISK_file_open (filename,
+                              GNUNET_DISK_OPEN_READ,
+                              GNUNET_DISK_PERM_NONE);
+  if (fh == NULL)
+    {
+      GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "open", filename);
+      return;
+    }
+  ddata = GNUNET_DISK_file_map (fh,
+                                &mh,
+                                GNUNET_DISK_MAP_TYPE_READ,
+                                (size_t) fsize);
+  if (ddata == NULL)
+    {
+      GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "mmap", filename);
+      GNUNET_break (GNUNET_OK ==
+                    GNUNET_DISK_file_close (fh));
+      return;
+    }
+  if (GNUNET_SYSERR ==
+      GNUNET_FS_directory_list_contents ((size_t) fsize,
+                                         ddata,
+                                         0,
+                                         dep, dep_cls))
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  _("Selected file `%s' is not a GNUnet directory!\n"),
+                  filename);
+    }
+  GNUNET_break (GNUNET_OK ==
+                GNUNET_DISK_file_unmap (mh));
+  GNUNET_break (GNUNET_OK ==
+                GNUNET_DISK_file_close (fh));
+}
+
+
+/* end of common.c */