storage/browser/fileapi/file_system_url.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 "storage/browser/fileapi/file_system_url.h"
   6
   7 #include <sstream>
   8
   9 #include "base/logging.h"
  10 #include "base/strings/string_util.h"
  11 #include "net/base/escape.h"
  12 #include "storage/common/fileapi/file_system_util.h"
  13
  14 namespace storage {
  15
  16 namespace {
  17
  18 }  // namespace
  19
  20 FileSystemURL::FileSystemURL()
  21     : is_valid_(false),
  22       mount_type_(kFileSystemTypeUnknown),
  23       type_(kFileSystemTypeUnknown),
  24       mount_option_(FlushPolicy::NO_FLUSH_ON_COMPLETION) {
  25 }
  26
  27 // static
  28 FileSystemURL FileSystemURL::CreateForTest(const GURL& url) {
  29   return FileSystemURL(url);
  30 }
  31
  32 FileSystemURL FileSystemURL::CreateForTest(const GURL& origin,
  33                                            FileSystemType mount_type,
  34                                            const base::FilePath& virtual_path) {
  35   return FileSystemURL(origin, mount_type, virtual_path);
  36 }
  37
  38 FileSystemURL FileSystemURL::CreateForTest(
  39     const GURL& origin,
  40     FileSystemType mount_type,
  41     const base::FilePath& virtual_path,
  42     const std::string& mount_filesystem_id,
  43     FileSystemType cracked_type,
  44     const base::FilePath& cracked_path,
  45     const std::string& filesystem_id,
  46     const FileSystemMountOption& mount_option) {
  47   return FileSystemURL(origin,
  48                        mount_type,
  49                        virtual_path,
  50                        mount_filesystem_id,
  51                        cracked_type,
  52                        cracked_path,
  53                        filesystem_id,
  54                        mount_option);
  55 }
  56
  57 FileSystemURL::FileSystemURL(const GURL& url)
  58     : mount_type_(kFileSystemTypeUnknown),
  59       type_(kFileSystemTypeUnknown),
  60       mount_option_(FlushPolicy::NO_FLUSH_ON_COMPLETION) {
  61   is_valid_ = ParseFileSystemSchemeURL(url, &origin_, &mount_type_,
  62                                        &virtual_path_);
  63   path_ = virtual_path_;
  64   type_ = mount_type_;
  65 }
  66
  67 FileSystemURL::FileSystemURL(const GURL& origin,
  68                              FileSystemType mount_type,
  69                              const base::FilePath& virtual_path)
  70     : is_valid_(true),
  71       origin_(origin),
  72       mount_type_(mount_type),
  73       virtual_path_(virtual_path.NormalizePathSeparators()),
  74       type_(mount_type),
  75       path_(virtual_path.NormalizePathSeparators()),
  76       mount_option_(FlushPolicy::NO_FLUSH_ON_COMPLETION) {
  77 }
  78
  79 FileSystemURL::FileSystemURL(const GURL& origin,
  80                              FileSystemType mount_type,
  81                              const base::FilePath& virtual_path,
  82                              const std::string& mount_filesystem_id,
  83                              FileSystemType cracked_type,
  84                              const base::FilePath& cracked_path,
  85                              const std::string& filesystem_id,
  86                              const FileSystemMountOption& mount_option)
  87     : is_valid_(true),
  88       origin_(origin),
  89       mount_type_(mount_type),
  90       virtual_path_(virtual_path.NormalizePathSeparators()),
  91       mount_filesystem_id_(mount_filesystem_id),
  92       type_(cracked_type),
  93       path_(cracked_path.NormalizePathSeparators()),
  94       filesystem_id_(filesystem_id),
  95       mount_option_(mount_option) {
  96 }
  97
  98 FileSystemURL::~FileSystemURL() {}
  99
 100 GURL FileSystemURL::ToGURL() const {
 101   if (!is_valid_)
 102     return GURL();
 103
 104   std::string url = GetFileSystemRootURI(origin_, mount_type_).spec();
 105   if (url.empty())
 106     return GURL();
 107
 108   // Exactly match with DOMFileSystemBase::createFileSystemURL()'s encoding
 109   // behavior, where the path is escaped by KURL::encodeWithURLEscapeSequences
 110   // which is essentially encodeURIComponent except '/'.
 111   std::string escaped = net::EscapeQueryParamValue(
 112       virtual_path_.NormalizePathSeparatorsTo('/').AsUTF8Unsafe(),
 113       false /* use_plus */);
 114   base::ReplaceSubstringsAfterOffset(&escaped, 0, "%2F", "/");
 115   url.append(escaped);
 116
 117   // Build nested GURL.
 118   return GURL(url);
 119 }
 120
 121 std::string FileSystemURL::DebugString() const {
 122   if (!is_valid_)
 123     return "invalid filesystem: URL";
 124   std::ostringstream ss;
 125   ss << GetFileSystemRootURI(origin_, mount_type_);
 126
 127   // filesystem_id_ will be non empty for (and only for) cracked URLs.
 128   if (!filesystem_id_.empty()) {
 129     ss << virtual_path_.value();
 130     ss << " (";
 131     ss << GetFileSystemTypeString(type_) << "@" << filesystem_id_ << ":";
 132     ss << path_.value();
 133     ss << ")";
 134   } else {
 135     ss << path_.value();
 136   }
 137   return ss.str();
 138 }
 139
 140 bool FileSystemURL::IsParent(const FileSystemURL& child) const {
 141   return IsInSameFileSystem(child) &&
 142          path().IsParent(child.path());
 143 }
 144
 145 bool FileSystemURL::IsInSameFileSystem(const FileSystemURL& other) const {
 146   return origin() == other.origin() &&
 147          type() == other.type() &&
 148          filesystem_id() == other.filesystem_id();
 149 }
 150
 151 bool FileSystemURL::operator==(const FileSystemURL& that) const {
 152   return origin_ == that.origin_ &&
 153       type_ == that.type_ &&
 154       path_ == that.path_ &&
 155       filesystem_id_ == that.filesystem_id_ &&
 156       is_valid_ == that.is_valid_;
 157 }
 158
 159 bool FileSystemURL::Comparator::operator()(const FileSystemURL& lhs,
 160                                            const FileSystemURL& rhs) const {
 161   DCHECK(lhs.is_valid_ && rhs.is_valid_);
 162   if (lhs.origin_ != rhs.origin_)
 163     return lhs.origin_ < rhs.origin_;
 164   if (lhs.type_ != rhs.type_)
 165     return lhs.type_ < rhs.type_;
 166   if (lhs.filesystem_id_ != rhs.filesystem_id_)
 167     return lhs.filesystem_id_ < rhs.filesystem_id_;
 168   return lhs.path_ < rhs.path_;
 169 }
 170
 171 }  // namespace storage