| /* GIO - GLib Input, Output and Streaming Library |
| * |
| * Copyright (C) 2006-2007 Red Hat, Inc. |
| * |
| * SPDX-License-Identifier: LGPL-2.1-or-later |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General |
| * Public License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| * |
| * Author: Alexander Larsson <alexl@redhat.com> |
| */ |
| |
| #include "config.h" |
| |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #if G_OS_UNIX |
| #include <dirent.h> |
| #include <unistd.h> |
| #endif |
| |
| #if HAVE_SYS_STATFS_H |
| #include <sys/statfs.h> |
| #endif |
| #if HAVE_SYS_STATVFS_H |
| #include <sys/statvfs.h> |
| #endif |
| #if HAVE_SYS_VFS_H |
| #include <sys/vfs.h> |
| #elif HAVE_SYS_MOUNT_H |
| #if HAVE_SYS_PARAM_H |
| #include <sys/param.h> |
| #endif |
| #include <sys/mount.h> |
| #endif |
| |
| #ifndef O_BINARY |
| #define O_BINARY 0 |
| #endif |
| |
| #ifndef O_CLOEXEC |
| #define O_CLOEXEC 0 |
| #endif |
| |
| #include "gfileattribute.h" |
| #include "glocalfile.h" |
| #include "glocalfileinfo.h" |
| #include "glocalfileenumerator.h" |
| #include "glocalfileinputstream.h" |
| #include "glocalfileoutputstream.h" |
| #include "glocalfileiostream.h" |
| #include "glocalfilemonitor.h" |
| #include "gmountprivate.h" |
| #include "gunixmounts.h" |
| #include "gioerror.h" |
| #include <glib/gstdio.h> |
| #include <glib/gstdioprivate.h> |
| #include "glibintl.h" |
| #ifdef G_OS_UNIX |
| #include "glib-unix.h" |
| #include "gportalsupport.h" |
| #include "gtrashportal.h" |
| #endif |
| |
| #include "glib-private.h" |
| |
| #ifdef G_OS_WIN32 |
| #include <windows.h> |
| #include <io.h> |
| #include <direct.h> |
| |
| #ifndef FILE_READ_ONLY_VOLUME |
| #define FILE_READ_ONLY_VOLUME 0x00080000 |
| #endif |
| |
| #ifndef S_ISREG |
| #define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG) |
| #endif |
| #ifndef S_ISDIR |
| #define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR) |
| #endif |
| #ifndef S_ISLNK |
| #define S_ISLNK(m) (0) |
| #endif |
| |
| #ifndef ECANCELED |
| #define ECANCELED 105 |
| #endif |
| #endif |
| |
| |
| static void g_local_file_file_iface_init (GFileIface *iface); |
| |
| static GFileAttributeInfoList *local_writable_attributes = NULL; |
| static GFileAttributeInfoList *local_writable_namespaces = NULL; |
| |
| struct _GLocalFile |
| { |
| GObject parent_instance; |
| |
| char *filename; |
| }; |
| |
| #define g_local_file_get_type _g_local_file_get_type |
| G_DEFINE_TYPE_WITH_CODE (GLocalFile, g_local_file, G_TYPE_OBJECT, |
| G_IMPLEMENT_INTERFACE (G_TYPE_FILE, |
| g_local_file_file_iface_init)) |
| |
| static char *find_mountpoint_for (const char *file, dev_t dev, gboolean resolve_basename_symlink); |
| |
| #ifndef G_OS_WIN32 |
| static gboolean is_remote_fs_type (const gchar *fsname); |
| #endif |
| |
| static void |
| g_local_file_finalize (GObject *object) |
| { |
| GLocalFile *local; |
| |
| local = G_LOCAL_FILE (object); |
| |
| g_free (local->filename); |
| |
| G_OBJECT_CLASS (g_local_file_parent_class)->finalize (object); |
| } |
| |
| static void |
| g_local_file_class_init (GLocalFileClass *klass) |
| { |
| GObjectClass *gobject_class = G_OBJECT_CLASS (klass); |
| GFileAttributeInfoList *list; |
| |
| gobject_class->finalize = g_local_file_finalize; |
| |
| /* Set up attribute lists */ |
| |
| /* Writable attributes: */ |
| |
| list = g_file_attribute_info_list_new (); |
| |
| g_file_attribute_info_list_add (list, |
| G_FILE_ATTRIBUTE_UNIX_MODE, |
| G_FILE_ATTRIBUTE_TYPE_UINT32, |
| G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE | |
| G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED); |
| |
| #ifdef G_OS_UNIX |
| g_file_attribute_info_list_add (list, |
| G_FILE_ATTRIBUTE_UNIX_UID, |
| G_FILE_ATTRIBUTE_TYPE_UINT32, |
| G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED); |
| g_file_attribute_info_list_add (list, |
| G_FILE_ATTRIBUTE_UNIX_GID, |
| G_FILE_ATTRIBUTE_TYPE_UINT32, |
| G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED); |
| #endif |
| |
| #ifdef HAVE_SYMLINK |
| g_file_attribute_info_list_add (list, |
| G_FILE_ATTRIBUTE_STANDARD_SYMLINK_TARGET, |
| G_FILE_ATTRIBUTE_TYPE_BYTE_STRING, |
| 0); |
| #endif |
| |
| #if defined(HAVE_UTIMES) || defined(HAVE_UTIMENSAT) |
| g_file_attribute_info_list_add (list, |
| G_FILE_ATTRIBUTE_TIME_MODIFIED, |
| G_FILE_ATTRIBUTE_TYPE_UINT64, |
| G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE | |
| G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED); |
| g_file_attribute_info_list_add (list, |
| G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC, |
| G_FILE_ATTRIBUTE_TYPE_UINT32, |
| G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE | |
| G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED); |
| /* When copying, the target file is accessed. Replicating |
| * the source access time does not make sense in this case. |
| */ |
| g_file_attribute_info_list_add (list, |
| G_FILE_ATTRIBUTE_TIME_ACCESS, |
| G_FILE_ATTRIBUTE_TYPE_UINT64, |
| G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED); |
| g_file_attribute_info_list_add (list, |
| G_FILE_ATTRIBUTE_TIME_ACCESS_USEC, |
| G_FILE_ATTRIBUTE_TYPE_UINT32, |
| G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED); |
| #endif /* HAVE_UTIMES || HAVE_UTIMENSAT */ |
| |
| #ifdef HAVE_UTIMENSAT |
| g_file_attribute_info_list_add (list, |
| G_FILE_ATTRIBUTE_TIME_MODIFIED_NSEC, |
| G_FILE_ATTRIBUTE_TYPE_UINT32, |
| G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE | |
| G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED); |
| g_file_attribute_info_list_add (list, |
| G_FILE_ATTRIBUTE_TIME_ACCESS_NSEC, |
| G_FILE_ATTRIBUTE_TYPE_UINT32, |
| G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED); |
| #endif |
| |
| local_writable_attributes = list; |
| } |
| |
| static void |
| g_local_file_init (GLocalFile *local) |
| { |
| } |
| |
| const char * |
| _g_local_file_get_filename (GLocalFile *file) |
| { |
| return file->filename; |
| } |
| |
| GFile * |
| _g_local_file_new (const char *filename) |
| { |
| GLocalFile *local; |
| |
| local = g_object_new (G_TYPE_LOCAL_FILE, NULL); |
| local->filename = g_canonicalize_filename (filename, NULL); |
| |
| return G_FILE (local); |
| } |
| |
| /*< internal > |
| * g_local_file_new_from_dirname_and_basename: |
| * @dirname: an absolute, canonical directory name |
| * @basename: the name of a child inside @dirname |
| * |
| * Creates a #GFile from @dirname and @basename. |
| * |
| * This is more efficient than pasting the fields together for yourself |
| * and creating a #GFile from the result, and also more efficient than |
| * creating a #GFile for the dirname and using g_file_get_child(). |
| * |
| * @dirname must be canonical, as per GLocalFile's opinion of what |
| * canonical means. This means that you should only pass strings that |
| * were returned by _g_local_file_get_filename(). |
| * |
| * Returns: a #GFile |
| */ |
| GFile * |
| g_local_file_new_from_dirname_and_basename (const gchar *dirname, |
| const gchar *basename) |
| { |
| GLocalFile *local; |
| |
| g_return_val_if_fail (dirname != NULL, NULL); |
| g_return_val_if_fail (basename && basename[0] && !strchr (basename, '/'), NULL); |
| |
| local = g_object_new (G_TYPE_LOCAL_FILE, NULL); |
| local->filename = g_build_filename (dirname, basename, NULL); |
| |
| return G_FILE (local); |
| } |
| |
| static gboolean |
| g_local_file_is_native (GFile *file) |
| { |
| return TRUE; |
| } |
| |
| static gboolean |
| g_local_file_has_uri_scheme (GFile *file, |
| const char *uri_scheme) |
| { |
| return g_ascii_strcasecmp (uri_scheme, "file") == 0; |
| } |
| |
| static char * |
| g_local_file_get_uri_scheme (GFile *file) |
| { |
| return g_strdup ("file"); |
| } |
| |
| static char * |
| g_local_file_get_basename (GFile *file) |
| { |
| return g_path_get_basename (G_LOCAL_FILE (file)->filename); |
| } |
| |
| static char * |
| g_local_file_get_path (GFile *file) |
| { |
| return g_strdup (G_LOCAL_FILE (file)->filename); |
| } |
| |
| static char * |
| g_local_file_get_uri (GFile *file) |
| { |
| return g_filename_to_uri (G_LOCAL_FILE (file)->filename, NULL, NULL); |
| } |
| |
| static gboolean |
| get_filename_charset (const gchar **filename_charset) |
| { |
| const gchar **charsets; |
| gboolean is_utf8; |
| |
| is_utf8 = g_get_filename_charsets (&charsets); |
| |
| if (filename_charset) |
| *filename_charset = charsets[0]; |
| |
| return is_utf8; |
| } |
| |
| static gboolean |
| name_is_valid_for_display (const char *string, |
| gboolean is_valid_utf8) |
| { |
| char c; |
| |
| if (!is_valid_utf8 && |
| !g_utf8_validate (string, -1, NULL)) |
| return FALSE; |
| |
| while ((c = *string++) != 0) |
| { |
| if (g_ascii_iscntrl (c)) |
| return FALSE; |
| } |
| |
| return TRUE; |
| } |
| |
| static char * |
| g_local_file_get_parse_name (GFile *file) |
| { |
| const char *filename; |
| char *parse_name; |
| const gchar *charset; |
| char *utf8_filename; |
| char *roundtripped_filename; |
| gboolean free_utf8_filename; |
| gboolean is_valid_utf8; |
| char *escaped_path; |
| |
| filename = G_LOCAL_FILE (file)->filename; |
| if (get_filename_charset (&charset)) |
| { |
| utf8_filename = (char *)filename; |
| free_utf8_filename = FALSE; |
| is_valid_utf8 = FALSE; /* Can't guarantee this */ |
| } |
| else |
| { |
| utf8_filename = g_convert (filename, -1, |
| "UTF-8", charset, NULL, NULL, NULL); |
| free_utf8_filename = TRUE; |
| is_valid_utf8 = TRUE; |
| |
| if (utf8_filename != NULL) |
| { |
| /* Make sure we can roundtrip: */ |
| roundtripped_filename = g_convert (utf8_filename, -1, |
| charset, "UTF-8", NULL, NULL, NULL); |
| |
| if (roundtripped_filename == NULL || |
| strcmp (filename, roundtripped_filename) != 0) |
| { |
| g_free (utf8_filename); |
| utf8_filename = NULL; |
| } |
| |
| g_free (roundtripped_filename); |
| } |
| } |
| |
| if (utf8_filename != NULL && |
| name_is_valid_for_display (utf8_filename, is_valid_utf8)) |
| { |
| if (free_utf8_filename) |
| parse_name = utf8_filename; |
| else |
| parse_name = g_strdup (utf8_filename); |
| } |
| else |
| { |
| #ifdef G_OS_WIN32 |
| char *dup_filename, *p, *backslash; |
| |
| /* Turn backslashes into forward slashes like |
| * g_filename_to_uri() would do (but we can't use that because |
| * it doesn't output IRIs). |
| */ |
| dup_filename = g_strdup (filename); |
| filename = p = dup_filename; |
| |
| while ((backslash = strchr (p, '\\')) != NULL) |
| { |
| *backslash = '/'; |
| p = backslash + 1; |
| } |
| #endif |
| |
| escaped_path = g_uri_escape_string (filename, |
| G_URI_RESERVED_CHARS_ALLOWED_IN_PATH_ELEMENT "/", |
| TRUE); |
| parse_name = g_strconcat ("file://", |
| (*escaped_path != '/') ? "/" : "", |
| escaped_path, |
| NULL); |
| |
| g_free (escaped_path); |
| #ifdef G_OS_WIN32 |
| g_free (dup_filename); |
| #endif |
| if (free_utf8_filename) |
| g_free (utf8_filename); |
| } |
| |
| return parse_name; |
| } |
| |
| static GFile * |
| g_local_file_get_parent (GFile *file) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| const char *non_root; |
| char *dirname; |
| GFile *parent; |
| |
| /* Check for root; local->filename is guaranteed to be absolute, so |
| * g_path_skip_root() should never return NULL. */ |
| non_root = g_path_skip_root (local->filename); |
| g_assert (non_root != NULL); |
| |
| if (*non_root == 0) |
| return NULL; |
| |
| dirname = g_path_get_dirname (local->filename); |
| parent = _g_local_file_new (dirname); |
| g_free (dirname); |
| return parent; |
| } |
| |
| static GFile * |
| g_local_file_dup (GFile *file) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| |
| return _g_local_file_new (local->filename); |
| } |
| |
| static guint |
| g_local_file_hash (GFile *file) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| |
| return g_str_hash (local->filename); |
| } |
| |
| static gboolean |
| g_local_file_equal (GFile *file1, |
| GFile *file2) |
| { |
| GLocalFile *local1 = G_LOCAL_FILE (file1); |
| GLocalFile *local2 = G_LOCAL_FILE (file2); |
| |
| return g_str_equal (local1->filename, local2->filename); |
| } |
| |
| static const char * |
| match_prefix (const char *path, |
| const char *prefix) |
| { |
| int prefix_len; |
| |
| prefix_len = strlen (prefix); |
| if (strncmp (path, prefix, prefix_len) != 0) |
| return NULL; |
| |
| /* Handle the case where prefix is the root, so that |
| * the IS_DIR_SEPRARATOR check below works */ |
| if (prefix_len > 0 && |
| G_IS_DIR_SEPARATOR (prefix[prefix_len-1])) |
| prefix_len--; |
| |
| return path + prefix_len; |
| } |
| |
| static gboolean |
| g_local_file_prefix_matches (GFile *parent, |
| GFile *descendant) |
| { |
| GLocalFile *parent_local = G_LOCAL_FILE (parent); |
| GLocalFile *descendant_local = G_LOCAL_FILE (descendant); |
| const char *remainder; |
| |
| remainder = match_prefix (descendant_local->filename, parent_local->filename); |
| if (remainder != NULL && G_IS_DIR_SEPARATOR (*remainder)) |
| return TRUE; |
| return FALSE; |
| } |
| |
| static char * |
| g_local_file_get_relative_path (GFile *parent, |
| GFile *descendant) |
| { |
| GLocalFile *parent_local = G_LOCAL_FILE (parent); |
| GLocalFile *descendant_local = G_LOCAL_FILE (descendant); |
| const char *remainder; |
| |
| remainder = match_prefix (descendant_local->filename, parent_local->filename); |
| |
| if (remainder != NULL && G_IS_DIR_SEPARATOR (*remainder)) |
| return g_strdup (remainder + 1); |
| return NULL; |
| } |
| |
| static GFile * |
| g_local_file_resolve_relative_path (GFile *file, |
| const char *relative_path) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| char *filename; |
| GFile *child; |
| |
| if (g_path_is_absolute (relative_path)) |
| return _g_local_file_new (relative_path); |
| |
| filename = g_build_filename (local->filename, relative_path, NULL); |
| child = _g_local_file_new (filename); |
| g_free (filename); |
| |
| return child; |
| } |
| |
| static GFileEnumerator * |
| g_local_file_enumerate_children (GFile *file, |
| const char *attributes, |
| GFileQueryInfoFlags flags, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| return _g_local_file_enumerator_new (local, |
| attributes, flags, |
| cancellable, error); |
| } |
| |
| static GFile * |
| g_local_file_get_child_for_display_name (GFile *file, |
| const char *display_name, |
| GError **error) |
| { |
| GFile *new_file; |
| char *basename; |
| |
| basename = g_filename_from_utf8 (display_name, -1, NULL, NULL, NULL); |
| if (basename == NULL) |
| { |
| g_set_error (error, G_IO_ERROR, |
| G_IO_ERROR_INVALID_FILENAME, |
| _("Invalid filename %s"), display_name); |
| return NULL; |
| } |
| |
| new_file = g_file_get_child (file, basename); |
| g_free (basename); |
| |
| return new_file; |
| } |
| |
| #if defined(USE_STATFS) && !defined(HAVE_STRUCT_STATFS_F_FSTYPENAME) |
| static const char * |
| get_fs_type (long f_type) |
| { |
| /* filesystem ids taken from linux manpage */ |
| switch (f_type) |
| { |
| case 0xadf5: |
| return "adfs"; |
| case 0x5346414f: |
| return "afs"; |
| case 0x0187: |
| return "autofs"; |
| case 0xADFF: |
| return "affs"; |
| case 0x62646576: |
| return "bdevfs"; |
| case 0x42465331: |
| return "befs"; |
| case 0x1BADFACE: |
| return "bfs"; |
| case 0x42494e4d: |
| return "binfmt_misc"; |
| case 0x9123683E: |
| return "btrfs"; |
| case 0x73727279: |
| return "btrfs_test_fs"; |
| case 0x27e0eb: |
| return "cgroup"; |
| case 0x63677270: |
| return "cgroup2"; |
| case 0xFF534D42: |
| return "cifs"; |
| case 0x73757245: |
| return "coda"; |
| case 0x012FF7B7: |
| return "coh"; |
| case 0x62656570: |
| return "configfs"; |
| case 0x28cd3d45: |
| return "cramfs"; |
| case 0x64626720: |
| return "debugfs"; |
| case 0x1373: |
| return "devfs"; |
| case 0x1cd1: |
| return "devpts"; |
| case 0xf15f: |
| return "ecryptfs"; |
| case 0xde5e81e4: |
| return "efivarfs"; |
| case 0x00414A53: |
| return "efs"; |
| case 0x2011BAB0UL: |
| return "exfat"; |
| case 0x137D: |
| return "ext"; |
| case 0xEF51: |
| return "ext2"; |
| case 0xEF53: |
| return "ext3/ext4"; |
| case 0xF2F52010: |
| return "f2fs"; |
| case 0x65735546: |
| return "fuse"; |
| case 0x65735543: |
| return "fusectl"; |
| case 0xBAD1DEA: |
| return "futexfs"; |
| case 0x4244: |
| return "hfs"; |
| case 0x00c0ffee: |
| return "hostfs"; |
| case 0xF995E849: |
| return "hpfs"; |
| case 0x958458f6: |
| return "hugetlbfs"; |
| case 0x9660: |
| return "isofs"; |
| case 0x72b6: |
| return "jffs2"; |
| case 0x3153464a: |
| return "jfs"; |
| case 0x137F: |
| return "minix"; |
| case 0x138F: |
| return "minix2"; |
| case 0x2468: |
| return "minix2"; |
| case 0x2478: |
| return "minix22"; |
| case 0x4d5a: |
| return "minix3"; |
| case 0x19800202: |
| return "mqueue"; |
| case 0x4d44: |
| return "msdos"; |
| case 0x564c: |
| return "ncp"; |
| case 0x6969: |
| return "nfs"; |
| case 0x3434: |
| return "nilfs"; |
| case 0x6e736673: |
| return "nsfs"; |
| case 0x5346544e: |
| return "ntfs"; |
| case 0x7461636f: |
| return "ocfs2"; |
| case 0x9fa1: |
| return "openprom"; |
| case 0x794c7630: |
| return "overlay"; |
| case 0x50495045: |
| return "pipefs"; |
| case 0x9fa0: |
| return "proc"; |
| case 0x6165676C: |
| return "pstore"; |
| case 0x002f: |
| return "qnx4"; |
| case 0x68191122: |
| return "qnx6"; |
| case 0x858458f6: |
| return "ramfs"; |
| case 0x52654973: |
| return "reiserfs"; |
| case 0x7275: |
| return "romfs"; |
| case 0x67596969: |
| return "rpc_pipefs"; |
| case 0x73636673: |
| return "securityfs"; |
| case 0xf97cff8c: |
| return "selinuxfs"; |
| case 0x43415d53: |
| return "smackfs"; |
| case 0x517B: |
| return "smb"; |
| case 0xfe534d42: |
| return "smb2"; |
| case 0x534F434B: |
| return "sockfs"; |
| case 0x73717368: |
| return "squashfs"; |
| case 0x62656572: |
| return "sysfs"; |
| case 0x012FF7B6: |
| return "sysv2"; |
| case 0x012FF7B5: |
| return "sysv4"; |
| case 0x01021994: |
| return "tmpfs"; |
| case 0x74726163: |
| return "tracefs"; |
| case 0x15013346: |
| return "udf"; |
| case 0x00011954: |
| return "ufs"; |
| case 0x9fa2: |
| return "usbdevice"; |
| case 0x01021997: |
| return "v9fs"; |
| case 0xa501FCF5: |
| return "vxfs"; |
| case 0xabba1974: |
| return "xenfs"; |
| case 0x012FF7B4: |
| return "xenix"; |
| case 0x58465342: |
| return "xfs"; |
| case 0x012FD16D: |
| return "xiafs"; |
| case 0x52345362: |
| return "reiser4"; |
| default: |
| return NULL; |
| } |
| } |
| #endif |
| |
| #ifndef G_OS_WIN32 |
| |
| G_LOCK_DEFINE_STATIC(mount_info_hash); |
| static GHashTable *mount_info_hash = NULL; |
| static guint64 mount_info_hash_cache_time = 0; |
| |
| typedef enum { |
| MOUNT_INFO_READONLY = 1<<0 |
| } MountInfo; |
| |
| static gboolean |
| device_equal (gconstpointer v1, |
| gconstpointer v2) |
| { |
| return *(dev_t *)v1 == *(dev_t *)v2; |
| } |
| |
| static guint |
| device_hash (gconstpointer v) |
| { |
| return (guint) *(dev_t *)v; |
| } |
| |
| static void |
| get_mount_info (GFileInfo *fs_info, |
| const char *path, |
| GFileAttributeMatcher *matcher) |
| { |
| GStatBuf buf; |
| gboolean got_info; |
| gpointer info_as_ptr; |
| guint mount_info; |
| char *mountpoint; |
| dev_t *dev; |
| GUnixMountEntry *mount; |
| guint64 cache_time; |
| gboolean is_remote = FALSE; |
| |
| if (g_lstat (path, &buf) != 0) |
| return; |
| |
| G_LOCK (mount_info_hash); |
| |
| if (mount_info_hash == NULL) |
| mount_info_hash = g_hash_table_new_full (device_hash, device_equal, |
| g_free, NULL); |
| |
| |
| if (g_unix_mounts_changed_since (mount_info_hash_cache_time)) |
| g_hash_table_remove_all (mount_info_hash); |
| |
| got_info = g_hash_table_lookup_extended (mount_info_hash, |
| &buf.st_dev, |
| NULL, |
| &info_as_ptr); |
| |
| G_UNLOCK (mount_info_hash); |
| |
| mount_info = GPOINTER_TO_UINT (info_as_ptr); |
| |
| if (!got_info) |
| { |
| mount_info = 0; |
| |
| mountpoint = find_mountpoint_for (path, buf.st_dev, FALSE); |
| if (mountpoint == NULL) |
| mountpoint = g_strdup ("/"); |
| |
| mount = g_unix_mount_at (mountpoint, &cache_time); |
| if (mount) |
| { |
| if (g_unix_mount_is_readonly (mount)) |
| mount_info |= MOUNT_INFO_READONLY; |
| if (is_remote_fs_type (g_unix_mount_get_fs_type (mount))) |
| is_remote = TRUE; |
| |
| g_unix_mount_free (mount); |
| } |
| |
| g_free (mountpoint); |
| |
| dev = g_new0 (dev_t, 1); |
| *dev = buf.st_dev; |
| |
| G_LOCK (mount_info_hash); |
| mount_info_hash_cache_time = cache_time; |
| g_hash_table_insert (mount_info_hash, dev, GUINT_TO_POINTER (mount_info)); |
| G_UNLOCK (mount_info_hash); |
| } |
| |
| if (g_file_attribute_matcher_matches (matcher, |
| G_FILE_ATTRIBUTE_FILESYSTEM_READONLY)) |
| g_file_info_set_attribute_boolean (fs_info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY, |
| (mount_info & MOUNT_INFO_READONLY)); |
| |
| if (g_file_attribute_matcher_matches (matcher, |
| G_FILE_ATTRIBUTE_FILESYSTEM_REMOTE)) |
| g_file_info_set_attribute_boolean (fs_info, G_FILE_ATTRIBUTE_FILESYSTEM_REMOTE, is_remote); |
| } |
| |
| #endif |
| |
| #ifdef G_OS_WIN32 |
| |
| static wchar_t * |
| get_volume_for_path (const char *path) |
| { |
| long len; |
| wchar_t *wpath; |
| wchar_t *result; |
| |
| wpath = g_utf8_to_utf16 (path, -1, NULL, NULL, NULL); |
| result = g_new (wchar_t, MAX_PATH); |
| |
| if (!GetVolumePathNameW (wpath, result, MAX_PATH)) |
| { |
| char *msg = g_win32_error_message (GetLastError ()); |
| g_critical ("GetVolumePathName failed: %s", msg); |
| g_free (msg); |
| g_free (result); |
| g_free (wpath); |
| return NULL; |
| } |
| |
| len = wcslen (result); |
| if (len > 0 && result[len-1] != L'\\') |
| { |
| result = g_renew (wchar_t, result, len + 2); |
| result[len] = L'\\'; |
| result[len + 1] = 0; |
| } |
| |
| g_free (wpath); |
| return result; |
| } |
| |
| static char * |
| find_mountpoint_for (const char *file, dev_t dev, gboolean resolve_basename_symlink) |
| { |
| wchar_t *wpath; |
| char *utf8_path; |
| |
| wpath = get_volume_for_path (file); |
| if (!wpath) |
| return NULL; |
| |
| utf8_path = g_utf16_to_utf8 (wpath, -1, NULL, NULL, NULL); |
| |
| g_free (wpath); |
| return utf8_path; |
| } |
| |
| static void |
| get_filesystem_readonly (GFileInfo *info, |
| const char *path) |
| { |
| wchar_t *rootdir; |
| |
| rootdir = get_volume_for_path (path); |
| |
| if (rootdir) |
| { |
| DWORD flags; |
| if (GetVolumeInformationW (rootdir, NULL, 0, NULL, NULL, &flags, NULL, 0)) |
| g_file_info_set_attribute_boolean (info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY, |
| (flags & FILE_READ_ONLY_VOLUME) != 0); |
| } |
| |
| g_free (rootdir); |
| } |
| |
| #endif /* G_OS_WIN32 */ |
| |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wformat-nonliteral" |
| static void |
| g_set_io_error (GError **error, |
| const gchar *msg, |
| GFile *file, |
| gint errsv) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| gchar *display_name; |
| |
| display_name = g_filename_display_name (local->filename); |
| g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errsv), |
| msg, display_name, g_strerror (errsv)); |
| g_free (display_name); |
| } |
| #pragma GCC diagnostic pop |
| |
| static GFileInfo * |
| g_local_file_query_filesystem_info (GFile *file, |
| const char *attributes, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| GFileInfo *info; |
| int statfs_result = 0; |
| gboolean no_size; |
| #ifndef G_OS_WIN32 |
| const char *fstype; |
| #ifdef USE_STATFS |
| guint64 block_size; |
| struct statfs statfs_buffer; |
| #elif defined(USE_STATVFS) |
| guint64 block_size; |
| struct statvfs statfs_buffer; |
| #endif /* USE_STATFS */ |
| #endif /* G_OS_WIN32 */ |
| GFileAttributeMatcher *attribute_matcher; |
| |
| no_size = FALSE; |
| |
| #ifdef USE_STATFS |
| |
| #if STATFS_ARGS == 2 |
| statfs_result = statfs (local->filename, &statfs_buffer); |
| #elif STATFS_ARGS == 4 |
| statfs_result = statfs (local->filename, &statfs_buffer, |
| sizeof (statfs_buffer), 0); |
| #endif /* STATFS_ARGS == 2 */ |
| block_size = statfs_buffer.f_bsize; |
| |
| /* Many backends can't report free size (for instance the gvfs fuse |
| * backend for backend not supporting this), and set f_bfree to 0, |
| * but it can be 0 for real too. We treat the available == 0 and |
| * free == 0 case as "both of these are invalid", but only on file systems |
| * which are known to not support this (otherwise we can omit metadata for |
| * systems which are legitimately full). */ |
| #if defined(__linux__) |
| if (statfs_result == 0 && |
| statfs_buffer.f_bavail == 0 && statfs_buffer.f_bfree == 0 && |
| (/* linux/ncp_fs.h: NCP_SUPER_MAGIC == 0x564c */ |
| statfs_buffer.f_type == 0x564c || |
| /* man statfs: FUSE_SUPER_MAGIC == 0x65735546 */ |
| statfs_buffer.f_type == 0x65735546)) |
| no_size = TRUE; |
| #endif /* __linux__ */ |
| |
| #elif defined(USE_STATVFS) |
| statfs_result = statvfs (local->filename, &statfs_buffer); |
| block_size = statfs_buffer.f_frsize; |
| #endif /* USE_STATFS */ |
| |
| if (statfs_result == -1) |
| { |
| int errsv = errno; |
| |
| g_set_io_error (error, |
| _("Error getting filesystem info for %s: %s"), |
| file, errsv); |
| return NULL; |
| } |
| |
| info = g_file_info_new (); |
| |
| attribute_matcher = g_file_attribute_matcher_new (attributes); |
| |
| if (!no_size && |
| g_file_attribute_matcher_matches (attribute_matcher, |
| G_FILE_ATTRIBUTE_FILESYSTEM_FREE)) |
| { |
| #ifdef G_OS_WIN32 |
| gchar *localdir = g_path_get_dirname (local->filename); |
| wchar_t *wdirname = g_utf8_to_utf16 (localdir, -1, NULL, NULL, NULL); |
| ULARGE_INTEGER li; |
| |
| g_free (localdir); |
| if (GetDiskFreeSpaceExW (wdirname, &li, NULL, NULL)) |
| g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_FREE, (guint64)li.QuadPart); |
| g_free (wdirname); |
| #else |
| #if defined(USE_STATFS) || defined(USE_STATVFS) |
| g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_FREE, block_size * statfs_buffer.f_bavail); |
| #endif |
| #endif |
| } |
| if (!no_size && |
| g_file_attribute_matcher_matches (attribute_matcher, |
| G_FILE_ATTRIBUTE_FILESYSTEM_SIZE)) |
| { |
| #ifdef G_OS_WIN32 |
| gchar *localdir = g_path_get_dirname (local->filename); |
| wchar_t *wdirname = g_utf8_to_utf16 (localdir, -1, NULL, NULL, NULL); |
| ULARGE_INTEGER li; |
| |
| g_free (localdir); |
| if (GetDiskFreeSpaceExW (wdirname, NULL, &li, NULL)) |
| g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_SIZE, (guint64)li.QuadPart); |
| g_free (wdirname); |
| #else |
| #if defined(USE_STATFS) || defined(USE_STATVFS) |
| g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_SIZE, block_size * statfs_buffer.f_blocks); |
| #endif |
| #endif /* G_OS_WIN32 */ |
| } |
| |
| if (!no_size && |
| g_file_attribute_matcher_matches (attribute_matcher, |
| G_FILE_ATTRIBUTE_FILESYSTEM_USED)) |
| { |
| #ifdef G_OS_WIN32 |
| gchar *localdir = g_path_get_dirname (local->filename); |
| wchar_t *wdirname = g_utf8_to_utf16 (localdir, -1, NULL, NULL, NULL); |
| ULARGE_INTEGER li_free; |
| ULARGE_INTEGER li_total; |
| |
| g_free (localdir); |
| if (GetDiskFreeSpaceExW (wdirname, &li_free, &li_total, NULL)) |
| g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_USED, (guint64)li_total.QuadPart - (guint64)li_free.QuadPart); |
| g_free (wdirname); |
| #else |
| g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_USED, block_size * (statfs_buffer.f_blocks - statfs_buffer.f_bfree)); |
| #endif /* G_OS_WIN32 */ |
| } |
| |
| #ifndef G_OS_WIN32 |
| #ifdef USE_STATFS |
| #if defined(HAVE_STRUCT_STATFS_F_FSTYPENAME) |
| fstype = statfs_buffer.f_fstypename; |
| #else |
| fstype = get_fs_type (statfs_buffer.f_type); |
| #endif |
| |
| #elif defined(USE_STATVFS) |
| #if defined(HAVE_STRUCT_STATVFS_F_FSTYPENAME) |
| fstype = statfs_buffer.f_fstypename; |
| #elif defined(HAVE_STRUCT_STATVFS_F_BASETYPE) |
| fstype = statfs_buffer.f_basetype; |
| #elif defined(HAVE_STRUCT_STATVFS_F_TYPE) |
| fstype = get_fs_type (statfs_buffer.f_type); |
| #else |
| fstype = NULL; |
| #endif |
| #endif /* USE_STATFS */ |
| |
| if (fstype && |
| g_file_attribute_matcher_matches (attribute_matcher, |
| G_FILE_ATTRIBUTE_FILESYSTEM_TYPE)) |
| g_file_info_set_attribute_string (info, G_FILE_ATTRIBUTE_FILESYSTEM_TYPE, fstype); |
| #endif /* G_OS_WIN32 */ |
| |
| if (g_file_attribute_matcher_matches (attribute_matcher, |
| G_FILE_ATTRIBUTE_FILESYSTEM_READONLY) || |
| g_file_attribute_matcher_matches (attribute_matcher, |
| G_FILE_ATTRIBUTE_FILESYSTEM_REMOTE)) |
| { |
| #ifdef G_OS_WIN32 |
| get_filesystem_readonly (info, local->filename); |
| #else |
| get_mount_info (info, local->filename, attribute_matcher); |
| #endif /* G_OS_WIN32 */ |
| } |
| |
| g_file_attribute_matcher_unref (attribute_matcher); |
| |
| return info; |
| } |
| |
| static GMount * |
| g_local_file_find_enclosing_mount (GFile *file, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| GStatBuf buf; |
| char *mountpoint; |
| GMount *mount; |
| |
| if (g_lstat (local->filename, &buf) != 0) |
| goto error; |
| |
| mountpoint = find_mountpoint_for (local->filename, buf.st_dev, FALSE); |
| if (mountpoint == NULL) |
| goto error; |
| |
| mount = _g_mount_get_for_mount_path (mountpoint, cancellable); |
| g_free (mountpoint); |
| if (mount) |
| return mount; |
| |
| error: |
| g_set_io_error (error, |
| /* Translators: This is an error message when trying to find |
| * the enclosing (user visible) mount of a file, but none |
| * exists. |
| */ |
| _("Containing mount for file %s not found"), |
| file, 0); |
| |
| return NULL; |
| } |
| |
| static GFile * |
| g_local_file_set_display_name (GFile *file, |
| const char *display_name, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GLocalFile *local, *new_local; |
| GFile *new_file, *parent; |
| GStatBuf statbuf; |
| GVfsClass *class; |
| GVfs *vfs; |
| int errsv; |
| |
| parent = g_file_get_parent (file); |
| if (parent == NULL) |
| { |
| g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED, |
| _("Can’t rename root directory")); |
| return NULL; |
| } |
| |
| new_file = g_file_get_child_for_display_name (parent, display_name, error); |
| g_object_unref (parent); |
| |
| if (new_file == NULL) |
| return NULL; |
| local = G_LOCAL_FILE (file); |
| new_local = G_LOCAL_FILE (new_file); |
| |
| if (g_lstat (new_local->filename, &statbuf) == -1) |
| { |
| errsv = errno; |
| |
| if (errsv != ENOENT) |
| { |
| g_set_io_error (error, _("Error renaming file %s: %s"), new_file, errsv); |
| return NULL; |
| } |
| } |
| else |
| { |
| g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_EXISTS, |
| _("Can’t rename file, filename already exists")); |
| return NULL; |
| } |
| |
| if (g_rename (local->filename, new_local->filename) == -1) |
| { |
| errsv = errno; |
| |
| if (errsv == EINVAL) |
| /* We can't get a rename file into itself error here, |
| * so this must be an invalid filename, on e.g. FAT |
| */ |
| g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_FILENAME, |
| _("Invalid filename")); |
| else |
| g_set_io_error (error, |
| _("Error renaming file %s: %s"), |
| file, errsv); |
| g_object_unref (new_file); |
| return NULL; |
| } |
| |
| vfs = g_vfs_get_default (); |
| class = G_VFS_GET_CLASS (vfs); |
| if (class->local_file_moved) |
| class->local_file_moved (vfs, local->filename, new_local->filename); |
| |
| return new_file; |
| } |
| |
| static GFileInfo * |
| g_local_file_query_info (GFile *file, |
| const char *attributes, |
| GFileQueryInfoFlags flags, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| GFileInfo *info; |
| GFileAttributeMatcher *matcher; |
| char *basename, *dirname; |
| GLocalParentFileInfo parent_info; |
| |
| matcher = g_file_attribute_matcher_new (attributes); |
| |
| basename = g_path_get_basename (local->filename); |
| |
| dirname = g_path_get_dirname (local->filename); |
| _g_local_file_info_get_parent_info (dirname, matcher, &parent_info); |
| g_free (dirname); |
| |
| info = _g_local_file_info_get (basename, local->filename, |
| matcher, flags, &parent_info, |
| error); |
| |
| |
| _g_local_file_info_free_parent_info (&parent_info); |
| g_free (basename); |
| |
| g_file_attribute_matcher_unref (matcher); |
| |
| return info; |
| } |
| |
| static GFileAttributeInfoList * |
| g_local_file_query_settable_attributes (GFile *file, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| return g_file_attribute_info_list_ref (local_writable_attributes); |
| } |
| |
| static GFileAttributeInfoList * |
| g_local_file_query_writable_namespaces (GFile *file, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GFileAttributeInfoList *list; |
| GVfsClass *class; |
| GVfs *vfs; |
| |
| if (g_once_init_enter_pointer (&local_writable_namespaces)) |
| { |
| /* Writable namespaces: */ |
| |
| list = g_file_attribute_info_list_new (); |
| |
| #ifdef HAVE_XATTR |
| g_file_attribute_info_list_add (list, |
| "xattr", |
| G_FILE_ATTRIBUTE_TYPE_STRING, |
| G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE | |
| G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED); |
| g_file_attribute_info_list_add (list, |
| "xattr-sys", |
| G_FILE_ATTRIBUTE_TYPE_STRING, |
| G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED); |
| #endif |
| |
| vfs = g_vfs_get_default (); |
| class = G_VFS_GET_CLASS (vfs); |
| if (class->add_writable_namespaces) |
| class->add_writable_namespaces (vfs, list); |
| |
| g_once_init_leave_pointer (&local_writable_namespaces, list); |
| } |
| list = (GFileAttributeInfoList *)local_writable_namespaces; |
| |
| return g_file_attribute_info_list_ref (list); |
| } |
| |
| static gboolean |
| g_local_file_set_attribute (GFile *file, |
| const char *attribute, |
| GFileAttributeType type, |
| gpointer value_p, |
| GFileQueryInfoFlags flags, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| |
| return _g_local_file_info_set_attribute (local->filename, |
| attribute, |
| type, |
| value_p, |
| flags, |
| cancellable, |
| error); |
| } |
| |
| static gboolean |
| g_local_file_set_attributes_from_info (GFile *file, |
| GFileInfo *info, |
| GFileQueryInfoFlags flags, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| int res, chained_res; |
| GFileIface *default_iface; |
| |
| res = _g_local_file_info_set_attributes (local->filename, |
| info, flags, |
| cancellable, |
| error); |
| |
| if (!res) |
| error = NULL; /* Don't write over error if further errors */ |
| |
| default_iface = g_type_default_interface_peek (G_TYPE_FILE); |
| |
| chained_res = (default_iface->set_attributes_from_info) (file, info, flags, cancellable, error); |
| |
| return res && chained_res; |
| } |
| |
| static GFileInputStream * |
| g_local_file_read (GFile *file, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| int fd, ret; |
| GLocalFileStat buf; |
| |
| fd = g_open (local->filename, O_RDONLY | O_BINARY | O_CLOEXEC, 0); |
| if (fd == -1) |
| { |
| int errsv = errno; |
| |
| #ifdef G_OS_WIN32 |
| if (errsv == EACCES) |
| { |
| /* Exploit the fact that on W32 the glib filename encoding is UTF8 */ |
| ret = GLIB_PRIVATE_CALL (g_win32_stat_utf8) (local->filename, &buf); |
| if (ret == 0 && S_ISDIR (buf.st_mode)) |
| errsv = EISDIR; |
| } |
| #endif |
| g_set_io_error (error, |
| _("Error opening file %s: %s"), |
| file, errsv); |
| return NULL; |
| } |
| |
| ret = g_local_file_fstat (fd, G_LOCAL_FILE_STAT_FIELD_TYPE, G_LOCAL_FILE_STAT_FIELD_ALL, &buf); |
| |
| if (ret == 0 && S_ISDIR (_g_stat_mode (&buf))) |
| { |
| (void) g_close (fd, NULL); |
| g_set_io_error (error, |
| _("Error opening file %s: %s"), |
| file, EISDIR); |
| return NULL; |
| } |
| |
| return _g_local_file_input_stream_new (fd); |
| } |
| |
| static GFileOutputStream * |
| g_local_file_append_to (GFile *file, |
| GFileCreateFlags flags, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| return _g_local_file_output_stream_append (G_LOCAL_FILE (file)->filename, |
| flags, cancellable, error); |
| } |
| |
| static GFileOutputStream * |
| g_local_file_create (GFile *file, |
| GFileCreateFlags flags, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| return _g_local_file_output_stream_create (G_LOCAL_FILE (file)->filename, |
| FALSE, flags, NULL, |
| cancellable, error); |
| } |
| |
| static GFileOutputStream * |
| g_local_file_replace (GFile *file, |
| const char *etag, |
| gboolean make_backup, |
| GFileCreateFlags flags, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| return _g_local_file_output_stream_replace (G_LOCAL_FILE (file)->filename, |
| FALSE, |
| etag, make_backup, flags, NULL, |
| cancellable, error); |
| } |
| |
| static GFileIOStream * |
| g_local_file_open_readwrite (GFile *file, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GFileOutputStream *output; |
| GFileIOStream *res; |
| |
| output = _g_local_file_output_stream_open (G_LOCAL_FILE (file)->filename, |
| TRUE, |
| cancellable, error); |
| if (output == NULL) |
| return NULL; |
| |
| res = _g_local_file_io_stream_new (G_LOCAL_FILE_OUTPUT_STREAM (output)); |
| g_object_unref (output); |
| return res; |
| } |
| |
| static GFileIOStream * |
| g_local_file_create_readwrite (GFile *file, |
| GFileCreateFlags flags, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GFileOutputStream *output; |
| GFileIOStream *res; |
| |
| output = _g_local_file_output_stream_create (G_LOCAL_FILE (file)->filename, |
| TRUE, flags, NULL, |
| cancellable, error); |
| if (output == NULL) |
| return NULL; |
| |
| res = _g_local_file_io_stream_new (G_LOCAL_FILE_OUTPUT_STREAM (output)); |
| g_object_unref (output); |
| return res; |
| } |
| |
| static GFileIOStream * |
| g_local_file_replace_readwrite (GFile *file, |
| const char *etag, |
| gboolean make_backup, |
| GFileCreateFlags flags, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GFileOutputStream *output; |
| GFileIOStream *res; |
| |
| output = _g_local_file_output_stream_replace (G_LOCAL_FILE (file)->filename, |
| TRUE, |
| etag, make_backup, flags, NULL, |
| cancellable, error); |
| if (output == NULL) |
| return NULL; |
| |
| res = _g_local_file_io_stream_new (G_LOCAL_FILE_OUTPUT_STREAM (output)); |
| g_object_unref (output); |
| return res; |
| } |
| |
| static gboolean |
| g_local_file_delete (GFile *file, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| GVfsClass *class; |
| GVfs *vfs; |
| |
| if (g_remove (local->filename) == -1) |
| { |
| int errsv = errno; |
| |
| /* Posix allows EEXIST too, but the clearer error |
| is G_IO_ERROR_NOT_FOUND, and it's what nautilus |
| expects */ |
| if (errsv == EEXIST) |
| errsv = ENOTEMPTY; |
| |
| g_set_io_error (error, |
| _("Error removing file %s: %s"), |
| file, errsv); |
| return FALSE; |
| } |
| |
| vfs = g_vfs_get_default (); |
| class = G_VFS_GET_CLASS (vfs); |
| if (class->local_file_removed) |
| class->local_file_removed (vfs, local->filename); |
| |
| return TRUE; |
| } |
| |
| #ifndef G_OS_WIN32 |
| |
| static char * |
| strip_trailing_slashes (const char *path) |
| { |
| char *path_copy; |
| int len; |
| |
| path_copy = g_strdup (path); |
| len = strlen (path_copy); |
| while (len > 1 && path_copy[len-1] == '/') |
| path_copy[--len] = 0; |
| |
| return path_copy; |
| } |
| |
| static char * |
| expand_symlink (const char *link) |
| { |
| char *resolved, *canonical, *parent, *link2; |
| char symlink_value[4096]; |
| #ifdef G_OS_WIN32 |
| #else |
| gssize res; |
| #endif |
| |
| #ifdef G_OS_WIN32 |
| #else |
| res = readlink (link, symlink_value, sizeof (symlink_value) - 1); |
| |
| if (res == -1) |
| return g_strdup (link); |
| symlink_value[res] = 0; |
| #endif |
| |
| if (g_path_is_absolute (symlink_value)) |
| return g_canonicalize_filename (symlink_value, NULL); |
| else |
| { |
| link2 = strip_trailing_slashes (link); |
| parent = g_path_get_dirname (link2); |
| g_free (link2); |
| |
| resolved = g_build_filename (parent, symlink_value, NULL); |
| g_free (parent); |
| |
| canonical = g_canonicalize_filename (resolved, NULL); |
| |
| g_free (resolved); |
| |
| return canonical; |
| } |
| } |
| |
| static char * |
| expand_symlinks (const char *path, |
| dev_t *dev) |
| { |
| char *tmp, *target; |
| GStatBuf target_stat; |
| int num_recursions; |
| |
| target = g_strdup (path); |
| |
| num_recursions = 0; |
| do |
| { |
| if (g_lstat (target, &target_stat) != 0) |
| { |
| g_free (target); |
| return NULL; |
| } |
| |
| if (S_ISLNK (target_stat.st_mode)) |
| { |
| tmp = target; |
| target = expand_symlink (target); |
| g_free (tmp); |
| } |
| |
| num_recursions++; |
| |
| #ifdef MAXSYMLINKS |
| if (num_recursions > MAXSYMLINKS) |
| #else |
| /* 40 is used in kernel sources currently: |
| * https://github.com/torvalds/linux/include/linux/namei.h |
| */ |
| if (num_recursions > 40) |
| #endif |
| { |
| g_free (target); |
| return NULL; |
| } |
| } |
| while (S_ISLNK (target_stat.st_mode)); |
| |
| if (dev) |
| *dev = target_stat.st_dev; |
| |
| return target; |
| } |
| |
| static char * |
| get_parent (const char *path, |
| dev_t *parent_dev) |
| { |
| char *parent, *res; |
| char *path_copy; |
| |
| path_copy = strip_trailing_slashes (path); |
| |
| parent = g_path_get_dirname (path_copy); |
| if (strcmp (parent, ".") == 0) |
| { |
| g_free (parent); |
| g_free (path_copy); |
| return NULL; |
| } |
| g_free (path_copy); |
| |
| res = expand_symlinks (parent, parent_dev); |
| g_free (parent); |
| |
| return res; |
| } |
| |
| static char * |
| expand_all_symlinks (const char *path) |
| { |
| char *parent, *parent_expanded; |
| char *basename, *res; |
| dev_t parent_dev; |
| |
| parent = get_parent (path, &parent_dev); |
| if (parent == NULL) |
| return NULL; |
| |
| if (g_strcmp0 (parent, "/") != 0) |
| { |
| parent_expanded = expand_all_symlinks (parent); |
| basename = g_path_get_basename (path); |
| res = g_build_filename (parent_expanded, basename, NULL); |
| g_free (basename); |
| g_free (parent_expanded); |
| } |
| else |
| res = g_strdup (path); |
| |
| g_free (parent); |
| |
| return res; |
| } |
| |
| static char * |
| find_mountpoint_for (const char *file, |
| dev_t dev, |
| gboolean resolve_basename_symlink) |
| { |
| char *dir, *parent; |
| dev_t dir_dev, parent_dev; |
| |
| if (resolve_basename_symlink) |
| { |
| dir = expand_symlinks (file, NULL); |
| if (dir == NULL) |
| return NULL; |
| } |
| else |
| dir = g_strdup (file); |
| |
| dir_dev = dev; |
| |
| while (g_strcmp0 (dir, "/") != 0) |
| { |
| parent = get_parent (dir, &parent_dev); |
| if (parent == NULL) |
| { |
| g_free (dir); |
| return NULL; |
| } |
| |
| if (parent_dev != dir_dev) |
| { |
| g_free (parent); |
| return dir; |
| } |
| |
| g_free (dir); |
| dir = parent; |
| } |
| |
| return dir; |
| } |
| |
| char * |
| _g_local_file_find_topdir_for (const char *file) |
| { |
| char *dir; |
| char *mountpoint = NULL; |
| dev_t dir_dev; |
| |
| dir = get_parent (file, &dir_dev); |
| if (dir == NULL) |
| return NULL; |
| |
| mountpoint = find_mountpoint_for (dir, dir_dev, TRUE); |
| g_free (dir); |
| |
| return mountpoint; |
| } |
| |
| static char * |
| get_unique_filename (const char *basename, |
| int id) |
| { |
| const char *dot; |
| |
| if (id == 1) |
| return g_strdup (basename); |
| |
| dot = strchr (basename, '.'); |
| if (dot) |
| return g_strdup_printf ("%.*s.%d%s", (int)(dot - basename), basename, id, dot); |
| else |
| return g_strdup_printf ("%s.%d", basename, id); |
| } |
| |
| static gboolean |
| path_has_prefix (const char *path, |
| const char *prefix) |
| { |
| int prefix_len; |
| |
| if (prefix == NULL) |
| return TRUE; |
| |
| prefix_len = strlen (prefix); |
| |
| if (strncmp (path, prefix, prefix_len) == 0 && |
| (prefix_len == 0 || /* empty prefix always matches */ |
| prefix[prefix_len - 1] == '/' || /* last char in prefix was a /, so it must be in path too */ |
| path[prefix_len] == 0 || |
| path[prefix_len] == '/')) |
| return TRUE; |
| |
| return FALSE; |
| } |
| |
| static char * |
| try_make_relative (const char *path, |
| const char *base) |
| { |
| char *path2, *base2; |
| char *relative; |
| |
| path2 = expand_all_symlinks (path); |
| base2 = expand_all_symlinks (base); |
| |
| relative = NULL; |
| if (path2 != NULL && base2 != NULL && path_has_prefix (path2, base2)) |
| { |
| relative = path2 + strlen (base2); |
| while (*relative == '/') |
| relative ++; |
| relative = g_strdup (relative); |
| } |
| g_free (path2); |
| g_free (base2); |
| |
| if (relative) |
| return relative; |
| |
| /* Failed, use abs path */ |
| return g_strdup (path); |
| } |
| |
| static gboolean |
| ignore_trash_mount (GUnixMountEntry *mount) |
| { |
| GUnixMountPoint *mount_point = NULL; |
| const gchar *mount_options; |
| gboolean retval = TRUE; |
| |
| if (g_unix_mount_is_system_internal (mount)) |
| return TRUE; |
| |
| mount_options = g_unix_mount_get_options (mount); |
| if (mount_options == NULL) |
| { |
| mount_point = g_unix_mount_point_at (g_unix_mount_get_mount_path (mount), |
| NULL); |
| if (mount_point != NULL) |
| mount_options = g_unix_mount_point_get_options (mount_point); |
| } |
| |
| if (mount_options == NULL || |
| strstr (mount_options, "x-gvfs-notrash") == NULL) |
| retval = FALSE; |
| |
| g_clear_pointer (&mount_point, g_unix_mount_point_free); |
| |
| return retval; |
| } |
| |
| static gboolean |
| ignore_trash_path (const gchar *topdir) |
| { |
| GUnixMountEntry *mount; |
| gboolean retval = TRUE; |
| |
| mount = g_unix_mount_at (topdir, NULL); |
| if (mount == NULL) |
| goto out; |
| |
| retval = ignore_trash_mount (mount); |
| |
| out: |
| g_clear_pointer (&mount, g_unix_mount_free); |
| |
| return retval; |
| } |
| |
| gboolean |
| _g_local_file_has_trash_dir (const char *dirname, dev_t dir_dev) |
| { |
| static gsize home_dev_set = 0; |
| static dev_t home_dev; |
| static gboolean home_dev_valid = FALSE; |
| char *topdir, *globaldir, *trashdir, *tmpname; |
| uid_t uid; |
| char uid_str[32]; |
| GStatBuf global_stat, trash_stat; |
| gboolean res; |
| |
| if (g_once_init_enter (&home_dev_set)) |
| { |
| GStatBuf home_stat; |
| |
| if (g_stat (g_get_home_dir (), &home_stat) == 0) |
| { |
| home_dev = home_stat.st_dev; |
| home_dev_valid = TRUE; |
| } |
| else |
| { |
| home_dev_valid = FALSE; |
| } |
| |
| g_once_init_leave (&home_dev_set, 1); |
| } |
| |
| /* Assume we can trash to the home */ |
| if (!home_dev_valid) |
| return FALSE; |
| else if (dir_dev == home_dev) |
| return TRUE; |
| |
| topdir = find_mountpoint_for (dirname, dir_dev, TRUE); |
| if (topdir == NULL) |
| return FALSE; |
| |
| if (ignore_trash_path (topdir)) |
| { |
| g_free (topdir); |
| |
| return FALSE; |
| } |
| |
| globaldir = g_build_filename (topdir, ".Trash", NULL); |
| if (g_lstat (globaldir, &global_stat) == 0 && |
| S_ISDIR (global_stat.st_mode) && |
| (global_stat.st_mode & S_ISVTX) != 0) |
| { |
| /* got a toplevel sysadmin created dir, assume we |
| * can trash to it (we should be able to create a dir) |
| * This fails for the FAT case where the ownership of |
| * that dir would be wrong though.. |
| */ |
| g_free (globaldir); |
| g_free (topdir); |
| return TRUE; |
| } |
| g_free (globaldir); |
| |
| /* No global trash dir, or it failed the tests, fall back to $topdir/.Trash-$uid */ |
| uid = geteuid (); |
| g_snprintf (uid_str, sizeof (uid_str), "%lu", (unsigned long) uid); |
| |
| tmpname = g_strdup_printf (".Trash-%s", uid_str); |
| trashdir = g_build_filename (topdir, tmpname, NULL); |
| g_free (tmpname); |
| |
| if (g_lstat (trashdir, &trash_stat) == 0) |
| { |
| g_free (topdir); |
| g_free (trashdir); |
| return S_ISDIR (trash_stat.st_mode) && |
| trash_stat.st_uid == uid; |
| } |
| g_free (trashdir); |
| |
| /* User specific trash didn't exist, can we create it? */ |
| res = g_access (topdir, W_OK) == 0; |
| g_free (topdir); |
| |
| return res; |
| } |
| |
| #ifndef G_OS_WIN32 |
| gboolean |
| _g_local_file_is_lost_found_dir (const char *path, dev_t path_dev) |
| { |
| gboolean ret = FALSE; |
| gchar *mount_dir = NULL; |
| size_t mount_dir_len; |
| GStatBuf statbuf; |
| |
| if (!g_str_has_suffix (path, "/lost+found")) |
| goto out; |
| |
| mount_dir = find_mountpoint_for (path, path_dev, FALSE); |
| if (mount_dir == NULL) |
| goto out; |
| |
| mount_dir_len = strlen (mount_dir); |
| /* We special-case rootfs ('/') since it's the only case where |
| * mount_dir ends in '/' |
| */ |
| if (mount_dir_len == 1) |
| mount_dir_len--; |
| if (mount_dir_len + strlen ("/lost+found") != strlen (path)) |
| goto out; |
| |
| if (g_lstat (path, &statbuf) != 0) |
| goto out; |
| |
| if (!(S_ISDIR (statbuf.st_mode) && |
| statbuf.st_uid == 0 && |
| statbuf.st_gid == 0)) |
| goto out; |
| |
| ret = TRUE; |
| |
| out: |
| g_free (mount_dir); |
| return ret; |
| } |
| #endif |
| |
| static gboolean |
| g_local_file_trash (GFile *file, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| GStatBuf file_stat, home_stat; |
| const char *homedir; |
| char *trashdir, *topdir, *infodir, *filesdir; |
| char *basename, *trashname, *trashfile, *infoname, *infofile; |
| char *original_name, *original_name_escaped; |
| int i; |
| char *data; |
| char *path; |
| gboolean is_homedir_trash; |
| char *delete_time = NULL; |
| int fd; |
| GStatBuf trash_stat, global_stat; |
| char *dirname, *globaldir; |
| GVfsClass *class; |
| GVfs *vfs; |
| int errsv; |
| |
| if (glib_should_use_portal ()) |
| return g_trash_portal_trash_file (file, error); |
| |
| if (g_lstat (local->filename, &file_stat) != 0) |
| { |
| errsv = errno; |
| |
| g_set_io_error (error, |
| _("Error trashing file %s: %s"), |
| file, errsv); |
| return FALSE; |
| } |
| |
| homedir = g_get_home_dir (); |
| if (g_stat (homedir, &home_stat) != 0) |
| { |
| errsv = errno; |
| |
| g_set_io_error (error, |
| _("Error trashing file %s: %s"), |
| file, errsv); |
| return FALSE; |
| } |
| |
| is_homedir_trash = FALSE; |
| trashdir = NULL; |
| |
| /* On overlayfs, a file's st_dev will be different to the home directory's. |
| * We still want to create our trash directory under the home directory, so |
| * instead we should stat the directory that the file we're deleting is in as |
| * this will have the same st_dev. |
| */ |
| if (!S_ISDIR (file_stat.st_mode)) |
| { |
| path = g_path_get_dirname (local->filename); |
| /* If the parent is a symlink to a different device then it might have |
| * st_dev equal to the home directory's, in which case we will end up |
| * trying to rename across a filesystem boundary, which doesn't work. So |
| * we use g_stat here instead of g_lstat, to know where the symlink |
| * points to. */ |
| if (g_stat (path, &file_stat)) |
| { |
| errsv = errno; |
| g_free (path); |
| |
| g_set_io_error (error, |
| _("Error trashing file %s: %s"), |
| file, errsv); |
| return FALSE; |
| } |
| g_free (path); |
| } |
| |
| if (file_stat.st_dev == home_stat.st_dev) |
| { |
| is_homedir_trash = TRUE; |
| errno = 0; |
| trashdir = g_build_filename (g_get_user_data_dir (), "Trash", NULL); |
| if (g_mkdir_with_parents (trashdir, 0700) < 0) |
| { |
| char *display_name; |
| errsv = errno; |
| |
| display_name = g_filename_display_name (trashdir); |
| g_set_error (error, G_IO_ERROR, |
| g_io_error_from_errno (errsv), |
| _("Unable to create trash directory %s: %s"), |
| display_name, g_strerror (errsv)); |
| g_free (display_name); |
| g_free (trashdir); |
| return FALSE; |
| } |
| topdir = g_strdup (g_get_user_data_dir ()); |
| } |
| else |
| { |
| uid_t uid; |
| char uid_str[32]; |
| gboolean success = FALSE; |
| |
| uid = geteuid (); |
| g_snprintf (uid_str, sizeof (uid_str), "%lu", (unsigned long)uid); |
| |
| topdir = _g_local_file_find_topdir_for (local->filename); |
| if (topdir == NULL) |
| { |
| g_set_io_error (error, |
| _("Unable to find toplevel directory to trash %s"), |
| file, ENOTSUP); |
| return FALSE; |
| } |
| |
| if (ignore_trash_path (topdir)) |
| { |
| g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, |
| _("Trashing on system internal mounts is not supported")); |
| g_free (topdir); |
| |
| return FALSE; |
| } |
| |
| /* Try looking for global trash dir $topdir/.Trash/$uid */ |
| globaldir = g_build_filename (topdir, ".Trash", NULL); |
| if (g_lstat (globaldir, &global_stat) == 0 && |
| S_ISDIR (global_stat.st_mode) && |
| (global_stat.st_mode & S_ISVTX) != 0) |
| { |
| trashdir = g_build_filename (globaldir, uid_str, NULL); |
| success = TRUE; |
| |
| if (g_lstat (trashdir, &trash_stat) == 0) |
| { |
| if (!S_ISDIR (trash_stat.st_mode) || |
| trash_stat.st_uid != uid) |
| { |
| /* Not a directory or not owned by user, ignore */ |
| g_free (trashdir); |
| trashdir = NULL; |
| success = FALSE; |
| } |
| } |
| else if (g_mkdir (trashdir, 0700) == -1) |
| { |
| g_free (trashdir); |
| trashdir = NULL; |
| success = FALSE; |
| } |
| } |
| g_free (globaldir); |
| |
| if (trashdir == NULL) |
| { |
| gboolean tried_create; |
| |
| /* No global trash dir, or it failed the tests, fall back to $topdir/.Trash-$uid */ |
| dirname = g_strdup_printf (".Trash-%s", uid_str); |
| trashdir = g_build_filename (topdir, dirname, NULL); |
| success = TRUE; |
| g_free (dirname); |
| |
| tried_create = FALSE; |
| |
| retry: |
| if (g_lstat (trashdir, &trash_stat) == 0) |
| { |
| if (!S_ISDIR (trash_stat.st_mode) || |
| trash_stat.st_uid != uid) |
| { |
| /* Remove the failed directory */ |
| if (tried_create) |
| g_remove (trashdir); |
| |
| /* Not a directory or not owned by user, ignore */ |
| success = FALSE; |
| } |
| } |
| else |
| { |
| if (!tried_create && |
| g_mkdir (trashdir, 0700) != -1) |
| { |
| /* Ensure that the created dir has the right uid etc. |
| This might fail on e.g. a FAT dir */ |
| tried_create = TRUE; |
| goto retry; |
| } |
| else |
| { |
| success = FALSE; |
| } |
| } |
| } |
| |
| if (!success) |
| { |
| gchar *trashdir_display_name = NULL, *file_display_name = NULL; |
| |
| trashdir_display_name = g_filename_display_name (trashdir); |
| file_display_name = g_filename_display_name (local->filename); |
| g_set_error (error, G_IO_ERROR, |
| G_IO_ERROR_NOT_SUPPORTED, |
| _("Unable to find or create trash directory %s to trash %s"), |
| trashdir_display_name, file_display_name); |
| |
| g_free (trashdir_display_name); |
| g_free (file_display_name); |
| |
| g_free (topdir); |
| g_free (trashdir); |
| |
| return FALSE; |
| } |
| } |
| |
| /* Trashdir points to the trash dir with the "info" and "files" subdirectories */ |
| |
| infodir = g_build_filename (trashdir, "info", NULL); |
| filesdir = g_build_filename (trashdir, "files", NULL); |
| |
| /* Make sure we have the subdirectories */ |
| if ((g_mkdir (infodir, 0700) == -1 && errno != EEXIST) || |
| (g_mkdir (filesdir, 0700) == -1 && errno != EEXIST)) |
| { |
| gchar *trashdir_display_name = NULL, *file_display_name = NULL; |
| |
| trashdir_display_name = g_filename_display_name (trashdir); |
| file_display_name = g_filename_display_name (local->filename); |
| g_set_error (error, G_IO_ERROR, |
| G_IO_ERROR_NOT_SUPPORTED, |
| _("Unable to find or create trash directory %s to trash %s"), |
| trashdir_display_name, file_display_name); |
| |
| g_free (trashdir_display_name); |
| g_free (file_display_name); |
| |
| g_free (topdir); |
| g_free (trashdir); |
| g_free (infodir); |
| g_free (filesdir); |
| |
| return FALSE; |
| } |
| |
| g_free (trashdir); |
| |
| basename = g_path_get_basename (local->filename); |
| i = 1; |
| trashname = NULL; |
| infofile = NULL; |
| do { |
| g_free (trashname); |
| g_free (infofile); |
| |
| trashname = get_unique_filename (basename, i++); |
| infoname = g_strconcat (trashname, ".trashinfo", NULL); |
| infofile = g_build_filename (infodir, infoname, NULL); |
| g_free (infoname); |
| |
| fd = g_open (infofile, O_CREAT | O_EXCL | O_CLOEXEC, 0666); |
| errsv = errno; |
| } while (fd == -1 && errsv == EEXIST); |
| |
| g_free (basename); |
| g_free (infodir); |
| |
| if (fd == -1) |
| { |
| g_free (filesdir); |
| g_free (topdir); |
| g_free (trashname); |
| g_free (infofile); |
| |
| g_set_io_error (error, |
| _("Unable to create trashing info file for %s: %s"), |
| file, errsv); |
| return FALSE; |
| } |
| |
| (void) g_close (fd, NULL); |
| |
| /* Write the full content of the info file before trashing to make |
| * sure someone doesn't read an empty file. See #749314 |
| */ |
| |
| /* Use absolute names for homedir */ |
| if (is_homedir_trash) |
| original_name = g_strdup (local->filename); |
| else |
| original_name = try_make_relative (local->filename, topdir); |
| original_name_escaped = g_uri_escape_string (original_name, "/", FALSE); |
| |
| g_free (original_name); |
| g_free (topdir); |
| |
| { |
| GDateTime *now = g_date_time_new_now_local (); |
| if (now != NULL) |
| delete_time = g_date_time_format (now, "%Y-%m-%dT%H:%M:%S"); |
| else |
| delete_time = g_strdup ("9999-12-31T23:59:59"); |
| g_date_time_unref (now); |
| } |
| |
| data = g_strdup_printf ("[Trash Info]\nPath=%s\nDeletionDate=%s\n", |
| original_name_escaped, delete_time); |
| g_free (delete_time); |
| |
| if (!g_file_set_contents_full (infofile, data, -1, |
| G_FILE_SET_CONTENTS_CONSISTENT | G_FILE_SET_CONTENTS_ONLY_EXISTING, |
| 0600, error)) |
| { |
| g_unlink (infofile); |
| |
| g_free (filesdir); |
| g_free (trashname); |
| g_free (infofile); |
| |
| return FALSE; |
| } |
| |
| /* TODO: Maybe we should verify that you can delete the file from the trash |
| * before moving it? OTOH, that is hard, as it needs a recursive scan |
| */ |
| |
| trashfile = g_build_filename (filesdir, trashname, NULL); |
| |
| g_free (filesdir); |
| |
| if (g_rename (local->filename, trashfile) == -1) |
| { |
| errsv = errno; |
| |
| g_unlink (infofile); |
| |
| g_free (trashname); |
| g_free (infofile); |
| g_free (trashfile); |
| |
| if (errsv == EXDEV) |
| /* The trash dir was actually on another fs anyway!? |
| * This can happen when the same device is mounted multiple |
| * times, or with bind mounts of the same fs. |
| */ |
| g_set_io_error (error, |
| _("Unable to trash file %s across filesystem boundaries"), |
| file, ENOTSUP); |
| else |
| g_set_io_error (error, |
| _("Unable to trash file %s: %s"), |
| file, errsv); |
| return FALSE; |
| } |
| |
| vfs = g_vfs_get_default (); |
| class = G_VFS_GET_CLASS (vfs); |
| if (class->local_file_moved) |
| class->local_file_moved (vfs, local->filename, trashfile); |
| |
| g_free (trashfile); |
| |
| /* TODO: Do we need to update mtime/atime here after the move? */ |
| |
| g_free (infofile); |
| g_free (data); |
| |
| g_free (original_name_escaped); |
| g_free (trashname); |
| |
| return TRUE; |
| } |
| #else /* G_OS_WIN32 */ |
| gboolean |
| _g_local_file_has_trash_dir (const char *dirname, dev_t dir_dev) |
| { |
| return FALSE; /* XXX ??? */ |
| } |
| |
| static gboolean |
| g_local_file_trash (GFile *file, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| SHFILEOPSTRUCTW op = {0}; |
| gboolean success; |
| wchar_t *wfilename; |
| long len; |
| |
| wfilename = g_utf8_to_utf16 (local->filename, -1, NULL, &len, NULL); |
| /* SHFILEOPSTRUCT.pFrom is double-zero-terminated */ |
| wfilename = g_renew (wchar_t, wfilename, len + 2); |
| wfilename[len + 1] = 0; |
| |
| op.wFunc = FO_DELETE; |
| op.pFrom = wfilename; |
| op.fFlags = FOF_ALLOWUNDO; |
| |
| success = SHFileOperationW (&op) == 0; |
| |
| if (success && op.fAnyOperationsAborted) |
| { |
| if (cancellable && !g_cancellable_is_cancelled (cancellable)) |
| g_cancellable_cancel (cancellable); |
| g_set_io_error (error, |
| _("Unable to trash file %s: %s"), |
| file, ECANCELED); |
| success = FALSE; |
| } |
| else if (!success) |
| g_set_io_error (error, |
| _("Unable to trash file %s"), |
| file, 0); |
| |
| g_free (wfilename); |
| return success; |
| } |
| #endif /* G_OS_WIN32 */ |
| |
| static gboolean |
| g_local_file_make_directory (GFile *file, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| |
| if (g_mkdir (local->filename, 0777) == -1) |
| { |
| int errsv = errno; |
| |
| if (errsv == EINVAL) |
| /* This must be an invalid filename, on e.g. FAT */ |
| g_set_error_literal (error, G_IO_ERROR, |
| G_IO_ERROR_INVALID_FILENAME, |
| _("Invalid filename")); |
| else |
| g_set_io_error (error, |
| _("Error creating directory %s: %s"), |
| file, errsv); |
| return FALSE; |
| } |
| |
| return TRUE; |
| } |
| |
| #ifdef HAVE_SYMLINK |
| static gboolean |
| g_local_file_make_symbolic_link (GFile *file, |
| const char *symlink_value, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GLocalFile *local = G_LOCAL_FILE (file); |
| |
| if (symlink (symlink_value, local->filename) == -1) |
| { |
| int errsv = errno; |
| |
| if (errsv == EINVAL) |
| /* This must be an invalid filename, on e.g. FAT */ |
| g_set_error_literal (error, G_IO_ERROR, |
| G_IO_ERROR_INVALID_FILENAME, |
| _("Invalid filename")); |
| else if (errsv == EPERM) |
| g_set_error (error, G_IO_ERROR, |
| G_IO_ERROR_NOT_SUPPORTED, |
| _("Filesystem does not support symbolic links")); |
| else |
| g_set_io_error (error, |
| _("Error making symbolic link %s: %s"), |
| file, errsv); |
| return FALSE; |
| } |
| return TRUE; |
| } |
| #endif |
| |
| static gboolean |
| g_local_file_move (GFile *source, |
| GFile *destination, |
| GFileCopyFlags flags, |
| GCancellable *cancellable, |
| GFileProgressCallback progress_callback, |
| gpointer progress_callback_data, |
| GError **error) |
| { |
| GLocalFile *local_source, *local_destination; |
| GStatBuf statbuf; |
| gboolean destination_exist, source_is_dir; |
| char *backup_name; |
| int res; |
| off_t source_size; |
| GVfsClass *class; |
| GVfs *vfs; |
| |
| if (!G_IS_LOCAL_FILE (source) || |
| !G_IS_LOCAL_FILE (destination)) |
| { |
| /* Fall back to default move */ |
| g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, "Move not supported"); |
| return FALSE; |
| } |
| |
| local_source = G_LOCAL_FILE (source); |
| local_destination = G_LOCAL_FILE (destination); |
| |
| res = g_lstat (local_source->filename, &statbuf); |
| if (res == -1) |
| { |
| int errsv = errno; |
| |
| g_set_io_error (error, |
| _("Error moving file %s: %s"), |
| source, errsv); |
| return FALSE; |
| } |
| |
| source_is_dir = S_ISDIR (statbuf.st_mode); |
| source_size = statbuf.st_size; |
| |
| destination_exist = FALSE; |
| res = g_lstat (local_destination->filename, &statbuf); |
| if (res == 0) |
| { |
| destination_exist = TRUE; /* Target file exists */ |
| |
| if (flags & G_FILE_COPY_OVERWRITE) |
| { |
| /* Always fail on dirs, even with overwrite */ |
| if (S_ISDIR (statbuf.st_mode)) |
| { |
| if (source_is_dir) |
| g_set_error_literal (error, |
| G_IO_ERROR, |
| G_IO_ERROR_WOULD_MERGE, |
| _("Can’t move directory over directory")); |
| else |
| g_set_error_literal (error, |
| G_IO_ERROR, |
| G_IO_ERROR_IS_DIRECTORY, |
| _("Can’t copy over directory")); |
| return FALSE; |
| } |
| } |
| else |
| { |
| g_set_io_error (error, |
| _("Error moving file %s: %s"), |
| source, EEXIST); |
| return FALSE; |
| } |
| } |
| |
| if (flags & G_FILE_COPY_BACKUP && destination_exist) |
| { |
| backup_name = g_strconcat (local_destination->filename, "~", NULL); |
| if (g_rename (local_destination->filename, backup_name) == -1) |
| { |
| g_set_error_literal (error, |
| G_IO_ERROR, |
| G_IO_ERROR_CANT_CREATE_BACKUP, |
| _("Backup file creation failed")); |
| g_free (backup_name); |
| return FALSE; |
| } |
| g_free (backup_name); |
| destination_exist = FALSE; /* It did, but no more */ |
| } |
| |
| if (source_is_dir && destination_exist && (flags & G_FILE_COPY_OVERWRITE)) |
| { |
| /* Source is a dir, destination exists (and is not a dir, because that would have failed |
| earlier), and we're overwriting. Manually remove the target so we can do the rename. */ |
| res = g_unlink (local_destination->filename); |
| if (res == -1) |
| { |
| int errsv = errno; |
| |
| g_set_error (error, G_IO_ERROR, |
| g_io_error_from_errno (errsv), |
| _("Error removing target file: %s"), |
| g_strerror (errsv)); |
| return FALSE; |
| } |
| } |
| |
| if (g_rename (local_source->filename, local_destination->filename) == -1) |
| { |
| int errsv = errno; |
| |
| if (errsv == EXDEV) |
| /* This will cause the fallback code to run */ |
| g_set_error_literal (error, G_IO_ERROR, |
| G_IO_ERROR_NOT_SUPPORTED, |
| _("Move between mounts not supported")); |
| else if (errsv == EINVAL) |
| /* This must be an invalid filename, on e.g. FAT, or |
| we're trying to move the file into itself... |
| We return invalid filename for both... */ |
| g_set_error_literal (error, G_IO_ERROR, |
| G_IO_ERROR_INVALID_FILENAME, |
| _("Invalid filename")); |
| else |
| g_set_io_error (error, |
| _("Error moving file %s: %s"), |
| source, errsv); |
| return FALSE; |
| } |
| |
| vfs = g_vfs_get_default (); |
| class = G_VFS_GET_CLASS (vfs); |
| if (class->local_file_moved) |
| class->local_file_moved (vfs, local_source->filename, local_destination->filename); |
| |
| /* Make sure we send full copied size */ |
| if (progress_callback) |
| progress_callback (source_size, source_size, progress_callback_data); |
| |
| return TRUE; |
| } |
| |
| #ifdef G_OS_WIN32 |
| |
| gboolean |
| g_local_file_is_nfs_home (const gchar *filename) |
| { |
| return FALSE; |
| } |
| |
| #else |
| |
| static gboolean |
| is_remote_fs_type (const gchar *fsname) |
| { |
| if (fsname != NULL) |
| { |
| if (strcmp (fsname, "nfs") == 0) |
| return TRUE; |
| if (strcmp (fsname, "nfs4") == 0) |
| return TRUE; |
| if (strcmp (fsname, "cifs") == 0) |
| return TRUE; |
| if (strcmp (fsname, "smb") == 0) |
| return TRUE; |
| if (strcmp (fsname, "smb2") == 0) |
| return TRUE; |
| if (strcmp (fsname, "fuse.sshfs") == 0) |
| return TRUE; |
| } |
| |
| return FALSE; |
| } |
| |
| gboolean |
| g_local_file_is_nfs_home (const gchar *filename) |
| { |
| static gboolean remote_home = FALSE; |
| static gsize initialized; |
| const gchar *home; |
| |
| home = g_get_home_dir (); |
| if (path_has_prefix (filename, home)) |
| { |
| if (g_once_init_enter (&initialized)) |
| { |
| GFile *file; |
| GFileInfo *info; |
| const gchar *fs_type = NULL; |
| |
| file = _g_local_file_new (home); |
| info = g_local_file_query_filesystem_info (file, G_FILE_ATTRIBUTE_FILESYSTEM_TYPE, NULL, NULL); |
| if (info != NULL) |
| fs_type = g_file_info_get_attribute_string (info, G_FILE_ATTRIBUTE_FILESYSTEM_TYPE); |
| if (g_strcmp0 (fs_type, "nfs") == 0 || g_strcmp0 (fs_type, "nfs4") == 0) |
| remote_home = TRUE; |
| g_clear_object (&info); |
| g_object_unref (file); |
| |
| g_once_init_leave (&initialized, TRUE); |
| } |
| return remote_home; |
| } |
| |
| return FALSE; |
| } |
| #endif /* !G_OS_WIN32 */ |
| |
| static GFileMonitor* |
| g_local_file_monitor_dir (GFile *file, |
| GFileMonitorFlags flags, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GLocalFile *local_file = G_LOCAL_FILE (file); |
| |
| return g_local_file_monitor_new_for_path (local_file->filename, TRUE, flags, error); |
| } |
| |
| static GFileMonitor* |
| g_local_file_monitor_file (GFile *file, |
| GFileMonitorFlags flags, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GLocalFile *local_file = G_LOCAL_FILE (file); |
| |
| return g_local_file_monitor_new_for_path (local_file->filename, FALSE, flags, error); |
| } |
| |
| /* Here is the GLocalFile implementation of g_file_measure_disk_usage(). |
| * |
| * If available, we use fopenat() in preference to filenames for |
| * efficiency and safety reasons. We know that fopenat() is available |
| * based on if AT_FDCWD is defined. POSIX guarantees that this will be |
| * defined as a macro. |
| * |
| * We use a linked list of stack-allocated GSList nodes in order to be |
| * able to reconstruct the filename for error messages. We actually |
| * pass the filename to operate on through the top node of the list. |
| * |
| * In case we're using openat(), this top filename will be a basename |
| * which should be opened in the directory which has also had its fd |
| * passed along. If we're not using openat() then it will be a full |
| * absolute filename. |
| */ |
| |
| static gboolean |
| g_local_file_measure_size_error (GFileMeasureFlags flags, |
| gint saved_errno, |
| GSList *name, |
| GError **error) |
| { |
| /* Only report an error if we were at the toplevel or if the caller |
| * requested reporting of all errors. |
| */ |
| if ((name->next == NULL) || (flags & G_FILE_MEASURE_REPORT_ANY_ERROR)) |
| { |
| GString *filename; |
| GSList *node; |
| |
| /* Skip some work if there is no error return */ |
| if (!error) |
| return FALSE; |
| |
| #ifdef AT_FDCWD |
| /* If using openat() we need to rebuild the filename for the message */ |
| filename = g_string_new (name->data); |
| for (node = name->next; node; node = node->next) |
| { |
| gchar *utf8; |
| |
| g_string_prepend_c (filename, G_DIR_SEPARATOR); |
| utf8 = g_filename_display_name (node->data); |
| g_string_prepend (filename, utf8); |
| g_free (utf8); |
| } |
| #else |
| { |
| gchar *utf8; |
| |
| /* Otherwise, we already have it, so just use it. */ |
| node = name; |
| filename = g_string_new (NULL); |
| utf8 = g_filename_display_name (node->data); |
| g_string_append (filename, utf8); |
| g_free (utf8); |
| } |
| #endif |
| |
| g_set_error (error, G_IO_ERROR, g_io_error_from_errno (saved_errno), |
| _("Could not determine the disk usage of %s: %s"), |
| filename->str, g_strerror (saved_errno)); |
| |
| g_string_free (filename, TRUE); |
| |
| return FALSE; |
| } |
| |
| else |
| /* We're not reporting this error... */ |
| return TRUE; |
| } |
| |
| typedef struct |
| { |
| GFileMeasureFlags flags; |
| dev_t contained_on; |
| GCancellable *cancellable; |
| |
| GFileMeasureProgressCallback progress_callback; |
| gpointer progress_data; |
| |
| guint64 disk_usage; |
| guint64 num_dirs; |
| guint64 num_files; |
| |
| guint64 last_progress_report; |
| } MeasureState; |
| |
| static gboolean |
| g_local_file_measure_size_of_contents (gint fd, |
| GSList *dir_name, |
| MeasureState *state, |
| GError **error); |
| |
| /* |
| * _g_stat_is_size_usable: |
| * @buf: a #GLocalFileStat. |
| * |
| * Checks if the file type is such that the `st_size` field of `struct stat` is |
| * well-defined by POSIX. |
| * (see https://pubs.opengroup.org/onlinepubs/009696799/basedefs/sys/stat.h.html) |
| * |
| * This behaviour is aligned with `du` from GNU Coreutils 9.2+ |
| * (see https://lists.gnu.org/archive/html/bug-coreutils/2023-03/msg00007.html) |
| * and makes apparent size sums well-defined; formerly, they depended on the |
| * implementation, and could differ across filesystems. |
| * |
| * Returns: %TRUE if the size field is well-defined, %FALSE otherwise. |
| **/ |
| inline static gboolean |
| _g_stat_is_size_usable (const GLocalFileStat *buf) |
| { |
| #ifndef HAVE_STATX |
| /* Memory objects are defined by POSIX, but are not supported by statx nor Windows */ |
| #ifdef S_TYPEISSHM |
| if (S_TYPEISSHM (buf)) |
| return TRUE; |
| #endif |
| #ifdef S_TYPEISTMO |
| if (S_TYPEISTMO (buf)) |
| return TRUE; |
| #endif |
| #endif |
| |
| return S_ISREG (_g_stat_mode (buf)) || S_ISLNK (_g_stat_mode (buf)); |
| } |
| |
| static gboolean |
| g_local_file_measure_size_of_file (gint parent_fd, |
| GSList *name, |
| MeasureState *state, |
| GError **error) |
| { |
| GLocalFileStat buf; |
| |
| if (g_cancellable_set_error_if_cancelled (state->cancellable, error)) |
| return FALSE; |
| |
| #if defined (AT_FDCWD) |
| if (g_local_file_fstatat (parent_fd, name->data, AT_SYMLINK_NOFOLLOW, |
| G_LOCAL_FILE_STAT_FIELD_BASIC_STATS, |
| G_LOCAL_FILE_STAT_FIELD_ALL & (~G_LOCAL_FILE_STAT_FIELD_ATIME), |
| &buf) != 0) |
| { |
| int errsv = errno; |
| return g_local_file_measure_size_error (state->flags, errsv, name, error); |
| } |
| #elif defined (HAVE_LSTAT) || !defined (G_OS_WIN32) |
| if (g_lstat (name->data, &buf) != 0) |
| { |
| int errsv = errno; |
| return g_local_file_measure_size_error (state->flags, errsv, name, error); |
| } |
| #else /* !AT_FDCWD && !HAVE_LSTAT && G_OS_WIN32 */ |
| if (GLIB_PRIVATE_CALL (g_win32_lstat_utf8) (name->data, &buf) != 0) |
| { |
| int errsv = errno; |
| return g_local_file_measure_size_error (state->flags, errsv, name, error); |
| } |
| #endif |
| |
| if (name->next) |
| { |
| /* If not at the toplevel, check for a device boundary. */ |
| |
| if (state->flags & G_FILE_MEASURE_NO_XDEV) |
| if (state->contained_on != _g_stat_dev (&buf)) |
| return TRUE; |
| } |
| else |
| { |
| /* If, however, this is the toplevel, set the device number so |
| * that recursive invocations can compare against it. |
| */ |
| state->contained_on = _g_stat_dev (&buf); |
| } |
| |
| #if defined (G_OS_WIN32) |
| if (~state->flags & G_FILE_MEASURE_APPARENT_SIZE) |
| state->disk_usage += buf.allocated_size; |
| else |
| #elif defined (HAVE_STRUCT_STAT_ST_BLOCKS) |
| if (~state->flags & G_FILE_MEASURE_APPARENT_SIZE) |
| state->disk_usage += _g_stat_blocks (&buf) * G_GUINT64_CONSTANT (512); |
| else |
| #endif |
| if (_g_stat_is_size_usable (&buf)) |
| state->disk_usage += _g_stat_size (&buf); |
| |
| if (S_ISDIR (_g_stat_mode (&buf))) |
| state->num_dirs++; |
| else |
| state->num_files++; |
| |
| if (state->progress_callback) |
| { |
| /* We could attempt to do some cleverness here in order to avoid |
| * calling clock_gettime() so much, but we're doing stats and opens |
| * all over the place already... |
| */ |
| if (state->last_progress_report) |
| { |
| guint64 now; |
| |
| now = g_get_monotonic_time (); |
| |
| if (state->last_progress_report + 200 * G_TIME_SPAN_MILLISECOND < now) |
| { |
| (* state->progress_callback) (TRUE, |
| state->disk_usage, state->num_dirs, state->num_files, |
| state->progress_data); |
| state->last_progress_report = now; |
| } |
| } |
| else |
| { |
| /* We must do an initial report to inform that more reports |
| * will be coming. |
| */ |
| (* state->progress_callback) (TRUE, 0, 0, 0, state->progress_data); |
| state->last_progress_report = g_get_monotonic_time (); |
| } |
| } |
| |
| if (S_ISDIR (_g_stat_mode (&buf))) |
| { |
| int dir_fd = -1; |
| #ifdef AT_FDCWD |
| int errsv; |
| #endif |
| |
| if (g_cancellable_set_error_if_cancelled (state->cancellable, error)) |
| return FALSE; |
| |
| #ifdef AT_FDCWD |
| #ifdef HAVE_OPEN_O_DIRECTORY |
| dir_fd = openat (parent_fd, name->data, O_RDONLY | O_DIRECTORY | O_CLOEXEC); |
| #else |
| dir_fd = openat (parent_fd, name->data, O_RDONLY | O_CLOEXEC); |
| #endif |
| errsv = errno; |
| if (dir_fd < 0) |
| return g_local_file_measure_size_error (state->flags, errsv, name, error); |
| #endif |
| |
| if (!g_local_file_measure_size_of_contents (dir_fd, name, state, error)) |
| return FALSE; |
| } |
| |
| return TRUE; |
| } |
| |
| static gboolean |
| g_local_file_measure_size_of_contents (gint fd, |
| GSList *dir_name, |
| MeasureState *state, |
| GError **error) |
| { |
| gboolean success = TRUE; |
| const gchar *name; |
| GDir *dir; |
| gint saved_errno; |
| |
| #ifdef AT_FDCWD |
| { |
| /* If this fails, we want to preserve the errno from fdopendir() */ |
| DIR *dirp; |
| dirp = fdopendir (fd); |
| saved_errno = errno; |
| dir = dirp ? GLIB_PRIVATE_CALL(g_dir_new_from_dirp) (dirp) : NULL; |
| g_assert ((dirp == NULL) == (dir == NULL)); |
| } |
| #else |
| dir = GLIB_PRIVATE_CALL(g_dir_open_with_errno) (dir_name->data, 0); |
| saved_errno = errno; |
| #endif |
| |
| if (dir == NULL) |
| { |
| #ifdef AT_FDCWD |
| close (fd); |
| #endif |
| |
| return g_local_file_measure_size_error (state->flags, saved_errno, dir_name, error); |
| } |
| |
| while (success && (name = g_dir_read_name (dir))) |
| { |
| GSList node; |
| |
| node.next = dir_name; |
| #ifdef AT_FDCWD |
| node.data = (gchar *) name; |
| #else |
| node.data = g_build_filename (dir_name->data, name, NULL); |
| #endif |
| |
| success = g_local_file_measure_size_of_file (fd, &node, state, error); |
| |
| #ifndef AT_FDCWD |
| g_free (node.data); |
| #endif |
| } |
| |
| g_dir_close (dir); |
| |
| return success; |
| } |
| |
| static gboolean |
| g_local_file_measure_disk_usage (GFile *file, |
| GFileMeasureFlags flags, |
| GCancellable *cancellable, |
| GFileMeasureProgressCallback progress_callback, |
| gpointer progress_data, |
| guint64 *disk_usage, |
| guint64 *num_dirs, |
| guint64 *num_files, |
| GError **error) |
| { |
| GLocalFile *local_file = G_LOCAL_FILE (file); |
| MeasureState state = { 0, }; |
| gint root_fd = -1; |
| GSList node; |
| |
| state.flags = flags; |
| state.cancellable = cancellable; |
| state.progress_callback = progress_callback; |
| state.progress_data = progress_data; |
| |
| #ifdef AT_FDCWD |
| root_fd = AT_FDCWD; |
| #endif |
| |
| node.data = local_file->filename; |
| node.next = NULL; |
| |
| if (!g_local_file_measure_size_of_file (root_fd, &node, &state, error)) |
| return FALSE; |
| |
| if (disk_usage) |
| *disk_usage = state.disk_usage; |
| |
| if (num_dirs) |
| *num_dirs = state.num_dirs; |
| |
| if (num_files) |
| *num_files = state.num_files; |
| |
| return TRUE; |
| } |
| |
| static void |
| g_local_file_file_iface_init (GFileIface *iface) |
| { |
| iface->dup = g_local_file_dup; |
| iface->hash = g_local_file_hash; |
| iface->equal = g_local_file_equal; |
| iface->is_native = g_local_file_is_native; |
| iface->has_uri_scheme = g_local_file_has_uri_scheme; |
| iface->get_uri_scheme = g_local_file_get_uri_scheme; |
| iface->get_basename = g_local_file_get_basename; |
| iface->get_path = g_local_file_get_path; |
| iface->get_uri = g_local_file_get_uri; |
| iface->get_parse_name = g_local_file_get_parse_name; |
| iface->get_parent = g_local_file_get_parent; |
| iface->prefix_matches = g_local_file_prefix_matches; |
| iface->get_relative_path = g_local_file_get_relative_path; |
| iface->resolve_relative_path = g_local_file_resolve_relative_path; |
| iface->get_child_for_display_name = g_local_file_get_child_for_display_name; |
| iface->set_display_name = g_local_file_set_display_name; |
| iface->enumerate_children = g_local_file_enumerate_children; |
| iface->query_info = g_local_file_query_info; |
| iface->query_filesystem_info = g_local_file_query_filesystem_info; |
| iface->find_enclosing_mount = g_local_file_find_enclosing_mount; |
| iface->query_settable_attributes = g_local_file_query_settable_attributes; |
| iface->query_writable_namespaces = g_local_file_query_writable_namespaces; |
| iface->set_attribute = g_local_file_set_attribute; |
| iface->set_attributes_from_info = g_local_file_set_attributes_from_info; |
| iface->read_fn = g_local_file_read; |
| iface->append_to = g_local_file_append_to; |
| iface->create = g_local_file_create; |
| iface->replace = g_local_file_replace; |
| iface->open_readwrite = g_local_file_open_readwrite; |
| iface->create_readwrite = g_local_file_create_readwrite; |
| iface->replace_readwrite = g_local_file_replace_readwrite; |
| iface->delete_file = g_local_file_delete; |
| iface->trash = g_local_file_trash; |
| iface->make_directory = g_local_file_make_directory; |
| #ifdef HAVE_SYMLINK |
| iface->make_symbolic_link = g_local_file_make_symbolic_link; |
| #endif |
| iface->move = g_local_file_move; |
| iface->monitor_dir = g_local_file_monitor_dir; |
| iface->monitor_file = g_local_file_monitor_file; |
| iface->measure_disk_usage = g_local_file_measure_disk_usage; |
| |
| iface->supports_thread_contexts = TRUE; |
| } |
