xpcom/build/FileLocation.h

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0 1 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 2 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 4
michael@0 5 #ifndef mozilla_FileLocation_h
michael@0 6 #define mozilla_FileLocation_h
michael@0 7
michael@0 8 #include "nsString.h"
michael@0 9 #include "nsCOMPtr.h"
michael@0 10 #include "nsAutoPtr.h"
michael@0 11 #include "nsIFile.h"
michael@0 12 #include "FileUtils.h"
michael@0 13
michael@0 14 class nsZipArchive;
michael@0 15 class nsZipItem;
michael@0 16
michael@0 17 namespace mozilla {
michael@0 18
michael@0 19 class FileLocation
michael@0 20 {
michael@0 21 public:
michael@0 22 /**
michael@0 23 * FileLocation is an helper to handle different kind of file locations
michael@0 24 * within Gecko:
michael@0 25 * - on filesystems
michael@0 26 * - in archives
michael@0 27 * - in archives within archives
michael@0 28 * As such, it stores a path within an archive, as well as the archive
michael@0 29 * path itself, or the complete file path alone when on a filesystem.
michael@0 30 * When the archive is in an archive, an nsZipArchive is stored instead
michael@0 31 * of a file path.
michael@0 32 */
michael@0 33 FileLocation();
michael@0 34 ~FileLocation();
michael@0 35
michael@0 36 /**
michael@0 37 * Constructor for plain files
michael@0 38 */
michael@0 39 FileLocation(nsIFile *file);
michael@0 40
michael@0 41 /**
michael@0 42 * Constructors for path within an archive. The archive can be given either
michael@0 43 * as nsIFile or nsZipArchive.
michael@0 44 */
michael@0 45 FileLocation(nsIFile *zip, const char *path);
michael@0 46
michael@0 47 FileLocation(nsZipArchive *zip, const char *path);
michael@0 48
michael@0 49 /**
michael@0 50 * Creates a new file location relative to another one.
michael@0 51 */
michael@0 52 FileLocation(const FileLocation &file, const char *path = nullptr);
michael@0 53
michael@0 54 /**
michael@0 55 * Initialization functions corresponding to constructors
michael@0 56 */
michael@0 57 void Init(nsIFile *file);
michael@0 58
michael@0 59 void Init(nsIFile *zip, const char *path);
michael@0 60
michael@0 61 void Init(nsZipArchive *zip, const char *path);
michael@0 62
michael@0 63 /**
michael@0 64 * Returns an URI string corresponding to the file location
michael@0 65 */
michael@0 66 void GetURIString(nsACString &result) const;
michael@0 67
michael@0 68 /**
michael@0 69 * Returns the base file of the location, where base file is defined as:
michael@0 70 * - The file itself when the location is on a filesystem
michael@0 71 * - The archive file when the location is in an archive
michael@0 72 * - The outer archive file when the location is in an archive in an archive
michael@0 73 */
michael@0 74 already_AddRefed<nsIFile> GetBaseFile();
michael@0 75
michael@0 76 /**
michael@0 77 * Returns whether the "base file" (see GetBaseFile) is an archive
michael@0 78 */
michael@0 79 bool IsZip() const
michael@0 80 {
michael@0 81 return !mPath.IsEmpty();
michael@0 82 }
michael@0 83
michael@0 84 /**
michael@0 85 * Returns the path within the archive, when within an archive
michael@0 86 */
michael@0 87 void GetPath(nsACString &result) const
michael@0 88 {
michael@0 89 result = mPath;
michael@0 90 }
michael@0 91
michael@0 92 /**
michael@0 93 * Boolean value corresponding to whether the file location is initialized
michael@0 94 * or not.
michael@0 95 */
michael@0 96 operator bool() const
michael@0 97 {
michael@0 98 return mBaseFile || mBaseZip;
michael@0 99 }
michael@0 100
michael@0 101 /**
michael@0 102 * Returns whether another FileLocation points to the same resource
michael@0 103 */
michael@0 104 bool Equals(const FileLocation &file) const;
michael@0 105
michael@0 106 /**
michael@0 107 * Data associated with a FileLocation.
michael@0 108 */
michael@0 109 class Data
michael@0 110 {
michael@0 111 public:
michael@0 112 /**
michael@0 113 * Returns the data size
michael@0 114 */
michael@0 115 nsresult GetSize(uint32_t *result);
michael@0 116
michael@0 117 /**
michael@0 118 * Copies the data in the given buffer
michael@0 119 */
michael@0 120 nsresult Copy(char *buf, uint32_t len);
michael@0 121 protected:
michael@0 122 friend class FileLocation;
michael@0 123 nsZipItem *mItem;
michael@0 124 nsRefPtr<nsZipArchive> mZip;
michael@0 125 mozilla::AutoFDClose mFd;
michael@0 126 };
michael@0 127
michael@0 128 /**
michael@0 129 * Returns the data associated with the resource pointed at by the file
michael@0 130 * location.
michael@0 131 */
michael@0 132 nsresult GetData(Data &data);
michael@0 133 private:
michael@0 134 nsCOMPtr<nsIFile> mBaseFile;
michael@0 135 nsRefPtr<nsZipArchive> mBaseZip;
michael@0 136 nsCString mPath;
michael@0 137 }; /* class FileLocation */
michael@0 138
michael@0 139 } /* namespace mozilla */
michael@0 140
michael@0 141 #endif /* mozilla_FileLocation_h */

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