content/browser/download/file_metadata_linux.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/download/file_metadata_linux.h"
   6
   7 #include <sys/types.h>
   8 #include <sys/xattr.h>
   9
  10 #include "base/file_util.h"
  11 #include "base/files/file_path.h"
  12 #include "base/logging.h"
  13 #include "url/gurl.h"
  14
  15 namespace content {
  16
  17 const char kSourceURLAttrName[] = "user.xdg.origin.url";
  18 const char kReferrerURLAttrName[] = "user.xdg.referrer.url";
  19
  20 static void SetExtendedFileAttribute(const char* path, const char* name,
  21                                      const char* value, size_t value_size,
  22                                      int flags) {
  23   int result = setxattr(path, name, value, value_size, flags);
  24   if (result) {
  25     DPLOG(ERROR)
  26         << "Could not set extended attribute " << name << " on file " << path;
  27   }
  28 }
  29
  30 void AddOriginMetadataToFile(const base::FilePath& file, const GURL& source,
  31                              const GURL& referrer) {
  32   DCHECK(base::PathIsWritable(file));
  33   if (source.is_valid()) {
  34     SetExtendedFileAttribute(file.value().c_str(), kSourceURLAttrName,
  35         source.spec().c_str(), source.spec().length(), 0);
  36   }
  37   if (referrer.is_valid()) {
  38     SetExtendedFileAttribute(file.value().c_str(), kReferrerURLAttrName,
  39         referrer.spec().c_str(), referrer.spec().length(), 0);
  40   }
  41 }
  42
  43 }  // namespace content