extensions/common/manifest_handler_helpers.cc

   1 // Copyright 2014 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 "extensions/common/manifest_handler_helpers.h"
   6
   7 #include "base/logging.h"
   8 #include "base/strings/string_number_conversions.h"
   9 #include "base/strings/utf_string_conversions.h"
  10 #include "base/values.h"
  11 #include "extensions/common/error_utils.h"
  12 #include "extensions/common/extension.h"
  13 #include "extensions/common/extension_icon_set.h"
  14 #include "extensions/common/manifest_constants.h"
  15
  16
  17 namespace extensions {
  18
  19 namespace errors = manifest_errors;
  20
  21 namespace manifest_handler_helpers {
  22
  23 bool NormalizeAndValidatePath(std::string* path) {
  24   size_t first_non_slash = path->find_first_not_of('/');
  25   if (first_non_slash == std::string::npos) {
  26     *path = "";
  27     return false;
  28   }
  29
  30   *path = path->substr(first_non_slash);
  31   return true;
  32 }
  33
  34 bool LoadIconsFromDictionary(const base::DictionaryValue* icons_value,
  35                              const int* icon_sizes,
  36                              size_t num_icon_sizes,
  37                              ExtensionIconSet* icons,
  38                              base::string16* error) {
  39   DCHECK(icons);
  40   for (size_t i = 0; i < num_icon_sizes; ++i) {
  41     std::string key = base::IntToString(icon_sizes[i]);
  42     if (icons_value->HasKey(key)) {
  43       std::string icon_path;
  44       if (!icons_value->GetString(key, &icon_path)) {
  45         *error = ErrorUtils::FormatErrorMessageUTF16(
  46             errors::kInvalidIconPath, key);
  47         return false;
  48       }
  49
  50       if (!NormalizeAndValidatePath(&icon_path)) {
  51         *error = ErrorUtils::FormatErrorMessageUTF16(
  52             errors::kInvalidIconPath, key);
  53         return false;
  54       }
  55
  56       icons->Add(icon_sizes[i], icon_path);
  57     }
  58   }
  59   return true;
  60 }
  61
  62 }  // namespace manifest_handler_helpers
  63
  64 }  // namespace extensions