[GNUnet-SVN] r10757 - gnunet/src/fs

[gnunet]

Author: grothoff
Date: 2010-04-02 17:27:48 +0200 (Fri, 02 Apr 2010)
New Revision: 10757

Modified:
   gnunet/src/fs/fs_download.c
Log:
more on directory handling

Modified: gnunet/src/fs/fs_download.c
===================================================================
--- gnunet/src/fs/fs_download.c 2010-04-02 15:16:18 UTC (rev 10756)
+++ gnunet/src/fs/fs_download.c 2010-04-02 15:27:48 UTC (rev 10757)
@@ -248,7 +248,21 @@
 }
 
 
+
 /**
+ * Suggest a filename based on given metadata.
+ * 
+ * @param md given meta data
+ * @return NULL if meta data is useless for suggesting a filename
+ */
+char *
+GNUNET_FS_meta_data_suggest_filename (const struct GNUNET_CONTAINER_MetaData 
*md)
+{
+  return NULL;
+}
+
+
+/**
  * We've lost our connection with the FS service.
  * Re-establish it and re-transmit all of our
  * pending requests.
@@ -359,6 +373,11 @@
 {
   struct GNUNET_FS_DownloadContext *dc = cls;  
   struct GNUNET_FS_DownloadContext *cpos;
+  char *fn;
+  char *us;
+  char *ext;
+  char *dn;
+  char *full_name;
 
   if (NULL == uri)
     return; /* entry for the directory itself */
@@ -375,26 +394,88 @@
     }
   if (cpos != NULL)
     return; /* already exists */
+  fn = NULL;
   if (NULL == filename)
     {
-      
+      fn = GNUNET_FS_meta_data_suggest_filename (meta);      
+      if (fn == NULL)
+       {
+         fn = GNUNET_FS_uri_to_string (uri);
+         
+       }
+      else if (fn[0] == '.')
+       {
+         ext = fn;
+         us = GNUNET_FS_uri_to_string (uri);
+         GNUNET_asprintf (&fn,
+                          "%s%s",
+                          us, ext);
+         GNUNET_free (ext);
+         GNUNET_free (us);
+       }
+      filename = fn;
     }
-  if (data != NULL)
+  if (dc->filename == NULL)
     {
-      /* determine on-disk filename, write data! */
-      GNUNET_break (0); // FIXME: not implemented
+      full_name = NULL;
     }
-  /* FIXME: filename MAY be NULL => make one up! */
+  else
+    {
+      dn = GNUNET_strdup (dc->filename);
+      GNUNET_break ( (strlen (dn) < strlen (GNUNET_FS_DIRECTORY_EXT)) ||
+                    (NULL ==
+                     strstr (dn + strlen(dn) - strlen(GNUNET_FS_DIRECTORY_EXT),
+                             GNUNET_FS_DIRECTORY_EXT)) );
+      dn[strlen(dn) - strlen (GNUNET_FS_DIRECTORY_EXT)] = '\0';      
+      if ( (GNUNET_YES == GNUNET_FS_meta_data_test_for_directory (meta)) &&
+          ( (strlen (filename) < strlen (GNUNET_FS_DIRECTORY_EXT)) ||
+            (NULL ==
+             strstr (filename + strlen(filename) - 
strlen(GNUNET_FS_DIRECTORY_EXT),
+                     GNUNET_FS_DIRECTORY_EXT)) ) )
+       {
+         GNUNET_asprintf (&full_name,
+                          "%s%s%s%s",
+                          dn,
+                          DIR_SEPARATOR_STR,
+                          filename,
+                          GNUNET_FS_DIRECTORY_EXT);
+       }
+      else
+       {
+         GNUNET_asprintf (&full_name,
+                          "%s%s%s",
+                          dn,
+                          DIR_SEPARATOR_STR,
+                          filename);
+       }
+      GNUNET_free (dn);
+    }
+  if (data != NULL) 
+    {
+      if (full_name != NULL)
+       {
+         /* determine on-disk filename, write data! */
+         GNUNET_break (0); // FIXME: not implemented
+       }
+      else
+       {
+         /* FIXME: generate 'progress' events and move to
+            instant completion! */
+         GNUNET_break (0); // FIXME: not implemented
+       }
+    }
   GNUNET_FS_download_start (dc->h,
                            uri,
                            meta,
-                           filename, /* FIXME: prepend directory name! */
+                           full_name,
                            0,
                            GNUNET_FS_uri_chk_get_file_size (uri),
                            dc->anonymity,
                            dc->options,
                            NULL,
                            dc);
+  GNUNET_free_non_null (full_name);
+  GNUNET_free_non_null (fn);
 }
 
 
@@ -612,8 +693,17 @@
        }
       dc->completed += app;
 
+      /* do recursive download if option is set and either meta data
+        says it is a directory or if no meta data is given AND filename 
+        ends in '.gnd' (top-level case) */
       if ( (0 != (dc->options & GNUNET_FS_DOWNLOAD_OPTION_RECURSIVE)) &&
-          (GNUNET_NO != GNUNET_FS_meta_data_test_for_directory (dc->meta)) )
+          ( (GNUNET_YES == GNUNET_FS_meta_data_test_for_directory (dc->meta)) 
||
+            ( (dc->meta == NULL) &&
+              ( (NULL == dc->filename) ||             
+                ( (strlen (dc->filename) >= strlen (GNUNET_FS_DIRECTORY_EXT)) 
&&
+                  (NULL !=
+                   strstr (dc->filename + strlen(dc->filename) - 
strlen(GNUNET_FS_DIRECTORY_EXT),
+                           GNUNET_FS_DIRECTORY_EXT)) ) ) ) ) )
        {
          GNUNET_FS_directory_list_contents (prc->size,
                                             pt,