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958 lines
28 KiB
C
958 lines
28 KiB
C
/* GIO - GLib Input, Output and Streaming Library
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*
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* Copyright (C) 2006-2007 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Alexander Larsson <alexl@redhat.com>
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*/
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#include "config.h"
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#include <string.h>
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#include "gresource.h"
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#include "gresourcefile.h"
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#include "gfileattribute.h"
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#include <gfileattribute-priv.h>
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#include <gfileinfo-priv.h>
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#include "gfile.h"
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#include "gfilemonitor.h"
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#include "gseekable.h"
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#include "gfileinputstream.h"
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#include "gfileinfo.h"
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#include "gfileenumerator.h"
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#include "gcontenttype.h"
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#include "gioerror.h"
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#include <glib/gstdio.h>
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#include "glibintl.h"
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struct _GResourceFile
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{
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GObject parent_instance;
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char *path;
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};
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struct _GResourceFileEnumerator
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{
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GFileEnumerator parent;
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GFileAttributeMatcher *matcher;
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char *path;
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char *attributes;
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GFileQueryInfoFlags flags;
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int index;
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char **children;
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};
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struct _GResourceFileEnumeratorClass
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{
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GFileEnumeratorClass parent_class;
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};
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typedef struct _GResourceFileEnumerator GResourceFileEnumerator;
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typedef struct _GResourceFileEnumeratorClass GResourceFileEnumeratorClass;
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static void g_resource_file_file_iface_init (GFileIface *iface);
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static GFileAttributeInfoList *resource_writable_attributes = NULL;
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static GFileAttributeInfoList *resource_writable_namespaces = NULL;
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static GType _g_resource_file_enumerator_get_type (void);
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#define G_TYPE_RESOURCE_FILE_ENUMERATOR (_g_resource_file_enumerator_get_type ())
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#define G_RESOURCE_FILE_ENUMERATOR(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_RESOURCE_FILE_ENUMERATOR, GResourceFileEnumerator))
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#define G_RESOURCE_FILE_ENUMERATOR_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_RESOURCE_FILE_ENUMERATOR, GResourceFileEnumeratorClass))
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#define G_IS_RESOURCE_FILE_ENUMERATOR(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_RESOURCE_FILE_ENUMERATOR))
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#define G_IS_RESOURCE_FILE_ENUMERATOR_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_RESOURCE_FILE_ENUMERATOR))
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#define G_RESOURCE_FILE_ENUMERATOR_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_RESOURCE_FILE_ENUMERATOR, GResourceFileEnumeratorClass))
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#define G_TYPE_RESOURCE_FILE_INPUT_STREAM (_g_resource_file_input_stream_get_type ())
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#define G_RESOURCE_FILE_INPUT_STREAM(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_RESOURCE_FILE_INPUT_STREAM, GResourceFileInputStream))
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#define G_RESOURCE_FILE_INPUT_STREAM_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_RESOURCE_FILE_INPUT_STREAM, GResourceFileInputStreamClass))
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#define G_IS_RESOURCE_FILE_INPUT_STREAM(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_RESOURCE_FILE_INPUT_STREAM))
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#define G_IS_RESOURCE_FILE_INPUT_STREAM_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_RESOURCE_FILE_INPUT_STREAM))
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#define G_RESOURCE_FILE_INPUT_STREAM_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_RESOURCE_FILE_INPUT_STREAM, GResourceFileInputStreamClass))
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typedef struct _GResourceFileInputStream GResourceFileInputStream;
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typedef struct _GResourceFileInputStreamClass GResourceFileInputStreamClass;
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#define g_resource_file_get_type _g_resource_file_get_type
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G_DEFINE_TYPE_WITH_CODE (GResourceFile, g_resource_file, G_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (G_TYPE_FILE,
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g_resource_file_file_iface_init))
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#define g_resource_file_enumerator_get_type _g_resource_file_enumerator_get_type
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G_DEFINE_TYPE (GResourceFileEnumerator, g_resource_file_enumerator, G_TYPE_FILE_ENUMERATOR)
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static GFileEnumerator *_g_resource_file_enumerator_new (GResourceFile *file,
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const char *attributes,
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GFileQueryInfoFlags flags,
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GCancellable *cancellable,
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GError **error);
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static GType _g_resource_file_input_stream_get_type (void) G_GNUC_CONST;
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static GFileInputStream *_g_resource_file_input_stream_new (GInputStream *stream, GFile *file);
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static void
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g_resource_file_finalize (GObject *object)
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{
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GResourceFile *resource;
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resource = G_RESOURCE_FILE (object);
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g_free (resource->path);
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G_OBJECT_CLASS (g_resource_file_parent_class)->finalize (object);
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}
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static void
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g_resource_file_class_init (GResourceFileClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->finalize = g_resource_file_finalize;
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resource_writable_attributes = g_file_attribute_info_list_new ();
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resource_writable_namespaces = g_file_attribute_info_list_new ();
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}
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static void
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g_resource_file_init (GResourceFile *resource)
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{
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}
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static inline gchar *
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scan_backwards (const gchar *begin,
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const gchar *end,
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gchar c)
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{
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while (end >= begin)
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{
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if (*end == c)
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return (gchar *)end;
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end--;
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}
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return NULL;
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}
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static inline void
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pop_to_previous_part (const gchar *begin,
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gchar **out)
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{
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if (*out > begin)
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*out = scan_backwards (begin, *out - 1, '/');
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}
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/*
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* canonicalize_filename:
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* @in: the path to be canonicalized
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*
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* The path @in may contain non-canonical path pieces such as "../"
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* or duplicated "/". This will resolve those into a form that only
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* contains a single / at a time and resolves all "../". The resulting
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* path must also start with a /.
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*
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* Returns: the canonical form of the path
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*/
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static char *
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canonicalize_filename (const char *in)
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{
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gchar *bptr;
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char *out;
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bptr = out = g_malloc (strlen (in) + 2);
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*out = '/';
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while (*in != 0)
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{
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g_assert (*out == '/');
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/* move past slashes */
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while (*in == '/')
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in++;
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/* Handle ./ ../ .\0 ..\0 */
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if (*in == '.')
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{
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/* If this is ../ or ..\0 move up */
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if (in[1] == '.' && (in[2] == '/' || in[2] == 0))
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{
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pop_to_previous_part (bptr, &out);
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in += 2;
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continue;
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}
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/* If this is ./ skip past it */
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if (in[1] == '/' || in[1] == 0)
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{
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in += 1;
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continue;
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}
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}
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/* Scan to the next path piece */
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while (*in != 0 && *in != '/')
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*(++out) = *(in++);
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/* Add trailing /, compress the rest on the next go round. */
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if (*in == '/')
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*(++out) = *(in++);
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}
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/* Trim trailing / from path */
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if (out > bptr && *out == '/')
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*out = 0;
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else
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*(++out) = 0;
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return bptr;
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}
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static GFile *
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g_resource_file_new_for_path (const char *path)
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{
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GResourceFile *resource = g_object_new (G_TYPE_RESOURCE_FILE, NULL);
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resource->path = canonicalize_filename (path);
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return G_FILE (resource);
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}
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GFile *
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_g_resource_file_new (const char *uri)
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{
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GFile *resource;
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char *path;
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path = g_uri_unescape_string (uri + strlen ("resource:"), NULL);
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resource = g_resource_file_new_for_path (path);
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g_free (path);
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return G_FILE (resource);
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}
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static gboolean
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g_resource_file_is_native (GFile *file)
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{
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return FALSE;
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}
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static gboolean
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g_resource_file_has_uri_scheme (GFile *file,
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const char *uri_scheme)
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{
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return g_ascii_strcasecmp (uri_scheme, "resource") == 0;
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}
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static char *
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g_resource_file_get_uri_scheme (GFile *file)
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{
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return g_strdup ("resource");
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}
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static char *
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g_resource_file_get_basename (GFile *file)
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{
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gchar *base;
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base = strrchr (G_RESOURCE_FILE (file)->path, '/');
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return g_strdup (base + 1);
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}
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static char *
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g_resource_file_get_path (GFile *file)
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{
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return NULL;
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}
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static char *
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g_resource_file_get_uri (GFile *file)
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{
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char *escaped, *res;
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escaped = g_uri_escape_string (G_RESOURCE_FILE (file)->path, G_URI_RESERVED_CHARS_ALLOWED_IN_PATH, FALSE);
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res = g_strconcat ("resource://", escaped, NULL);
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g_free (escaped);
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return res;
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}
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static char *
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g_resource_file_get_parse_name (GFile *file)
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{
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return g_resource_file_get_uri (file);
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}
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static GFile *
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g_resource_file_get_parent (GFile *file)
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{
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GResourceFile *resource = G_RESOURCE_FILE (file);
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GResourceFile *parent;
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gchar *end;
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end = strrchr (resource->path, '/');
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if (end == G_RESOURCE_FILE (file)->path)
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return NULL;
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parent = g_object_new (G_TYPE_RESOURCE_FILE, NULL);
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parent->path = g_strndup (resource->path,
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end - resource->path);
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return G_FILE (parent);
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}
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static GFile *
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g_resource_file_dup (GFile *file)
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{
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GResourceFile *resource = G_RESOURCE_FILE (file);
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return g_resource_file_new_for_path (resource->path);
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}
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static guint
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g_resource_file_hash (GFile *file)
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{
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GResourceFile *resource = G_RESOURCE_FILE (file);
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return g_str_hash (resource->path);
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}
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static gboolean
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g_resource_file_equal (GFile *file1,
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GFile *file2)
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{
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GResourceFile *resource1 = G_RESOURCE_FILE (file1);
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GResourceFile *resource2 = G_RESOURCE_FILE (file2);
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return g_str_equal (resource1->path, resource2->path);
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}
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static const char *
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match_prefix (const char *path,
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const char *prefix)
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{
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int prefix_len;
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prefix_len = strlen (prefix);
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if (strncmp (path, prefix, prefix_len) != 0)
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return NULL;
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/* Handle the case where prefix is the root, so that
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* the IS_DIR_SEPRARATOR check below works */
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if (prefix_len > 0 &&
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prefix[prefix_len-1] == '/')
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prefix_len--;
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return path + prefix_len;
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}
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static gboolean
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g_resource_file_prefix_matches (GFile *parent,
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GFile *descendant)
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{
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GResourceFile *parent_resource = G_RESOURCE_FILE (parent);
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GResourceFile *descendant_resource = G_RESOURCE_FILE (descendant);
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const char *remainder;
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remainder = match_prefix (descendant_resource->path, parent_resource->path);
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if (remainder != NULL && *remainder == '/')
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return TRUE;
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return FALSE;
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}
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static char *
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g_resource_file_get_relative_path (GFile *parent,
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GFile *descendant)
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{
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GResourceFile *parent_resource = G_RESOURCE_FILE (parent);
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GResourceFile *descendant_resource = G_RESOURCE_FILE (descendant);
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const char *remainder;
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remainder = match_prefix (descendant_resource->path, parent_resource->path);
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if (remainder != NULL && *remainder == '/')
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return g_strdup (remainder + 1);
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return NULL;
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}
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static GFile *
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g_resource_file_resolve_relative_path (GFile *file,
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const char *relative_path)
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{
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GResourceFile *resource = G_RESOURCE_FILE (file);
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char *filename;
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GFile *child;
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if (relative_path[0] == '/')
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return g_resource_file_new_for_path (relative_path);
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filename = g_build_path ("/", resource->path, relative_path, NULL);
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child = g_resource_file_new_for_path (filename);
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g_free (filename);
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return child;
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}
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static GFileEnumerator *
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g_resource_file_enumerate_children (GFile *file,
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const char *attributes,
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GFileQueryInfoFlags flags,
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GCancellable *cancellable,
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GError **error)
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{
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GResourceFile *resource = G_RESOURCE_FILE (file);
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return _g_resource_file_enumerator_new (resource,
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attributes, flags,
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cancellable, error);
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}
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static GFile *
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g_resource_file_get_child_for_display_name (GFile *file,
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const char *display_name,
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GError **error)
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{
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GFile *new_file;
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new_file = g_file_get_child (file, display_name);
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return new_file;
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}
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static GFileInfo *
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g_resource_file_query_info (GFile *file,
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const char *attributes,
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GFileQueryInfoFlags flags,
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GCancellable *cancellable,
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GError **error)
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{
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GResourceFile *resource = G_RESOURCE_FILE (file);
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GError *my_error = NULL;
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GFileInfo *info;
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GFileAttributeMatcher *matcher;
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gboolean res;
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gsize size = 0;
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guint32 resource_flags = 0;
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char **children;
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gboolean is_dir;
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char *base;
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is_dir = FALSE;
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children = g_resources_enumerate_children (resource->path, 0, NULL);
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if (children != NULL)
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{
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g_strfreev (children);
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is_dir = TRUE;
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}
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/* root is always there */
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if (strcmp ("/", resource->path) == 0)
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is_dir = TRUE;
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if (!is_dir)
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{
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res = g_resources_get_info (resource->path, 0, &size, &resource_flags, &my_error);
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if (!res)
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{
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if (g_error_matches (my_error, G_RESOURCE_ERROR, G_RESOURCE_ERROR_NOT_FOUND))
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
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_("The resource at “%s” does not exist"),
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resource->path);
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}
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else
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g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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my_error->message);
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g_clear_error (&my_error);
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return FALSE;
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}
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}
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matcher = g_file_attribute_matcher_new (attributes);
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info = g_file_info_new ();
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base = g_resource_file_get_basename (file);
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g_file_info_set_name (info, base);
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g_file_info_set_display_name (info, base);
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_g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_READ, TRUE);
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_g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_WRITE, FALSE);
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_g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_EXECUTE, FALSE);
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_g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_RENAME, FALSE);
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_g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_DELETE, FALSE);
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_g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_TRASH, FALSE);
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if (is_dir)
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{
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g_file_info_set_file_type (info, G_FILE_TYPE_DIRECTORY);
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}
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else
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{
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GBytes *bytes;
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char *content_type;
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g_file_info_set_file_type (info, G_FILE_TYPE_REGULAR);
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g_file_info_set_size (info, size);
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if ((_g_file_attribute_matcher_matches_id (matcher, G_FILE_ATTRIBUTE_ID_STANDARD_CONTENT_TYPE) ||
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((~resource_flags & G_RESOURCE_FLAGS_COMPRESSED) &&
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||
_g_file_attribute_matcher_matches_id (matcher, G_FILE_ATTRIBUTE_ID_STANDARD_FAST_CONTENT_TYPE))) &&
|
||
(bytes = g_resources_lookup_data (resource->path, 0, NULL)))
|
||
{
|
||
const guchar *data;
|
||
gsize data_size;
|
||
|
||
data = g_bytes_get_data (bytes, &data_size);
|
||
content_type = g_content_type_guess (base, data, data_size, NULL);
|
||
|
||
g_bytes_unref (bytes);
|
||
}
|
||
else
|
||
content_type = NULL;
|
||
|
||
if (content_type)
|
||
{
|
||
_g_file_info_set_attribute_string_by_id (info, G_FILE_ATTRIBUTE_ID_STANDARD_CONTENT_TYPE, content_type);
|
||
_g_file_info_set_attribute_string_by_id (info, G_FILE_ATTRIBUTE_ID_STANDARD_FAST_CONTENT_TYPE, content_type);
|
||
|
||
g_free (content_type);
|
||
}
|
||
}
|
||
|
||
g_free (base);
|
||
g_file_attribute_matcher_unref (matcher);
|
||
|
||
return info;
|
||
}
|
||
|
||
static GFileInfo *
|
||
g_resource_file_query_filesystem_info (GFile *file,
|
||
const char *attributes,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
GFileInfo *info;
|
||
GFileAttributeMatcher *matcher;
|
||
|
||
info = g_file_info_new ();
|
||
|
||
matcher = g_file_attribute_matcher_new (attributes);
|
||
if (g_file_attribute_matcher_matches (matcher, G_FILE_ATTRIBUTE_FILESYSTEM_TYPE))
|
||
g_file_info_set_attribute_string (info, G_FILE_ATTRIBUTE_FILESYSTEM_TYPE, "resource");
|
||
|
||
if (g_file_attribute_matcher_matches (matcher, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY)) g_file_info_set_attribute_boolean (info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY, TRUE);
|
||
|
||
g_file_attribute_matcher_unref (matcher);
|
||
|
||
return info;
|
||
}
|
||
|
||
static GFileAttributeInfoList *
|
||
g_resource_file_query_settable_attributes (GFile *file,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
return g_file_attribute_info_list_ref (resource_writable_attributes);
|
||
}
|
||
|
||
static GFileAttributeInfoList *
|
||
g_resource_file_query_writable_namespaces (GFile *file,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
return g_file_attribute_info_list_ref (resource_writable_namespaces);
|
||
}
|
||
|
||
static GFileInputStream *
|
||
g_resource_file_read (GFile *file,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
GResourceFile *resource = G_RESOURCE_FILE (file);
|
||
GError *my_error = NULL;
|
||
GInputStream *stream;
|
||
GFileInputStream *res;
|
||
|
||
stream = g_resources_open_stream (resource->path, 0, &my_error);
|
||
|
||
if (stream == NULL)
|
||
{
|
||
if (g_error_matches (my_error, G_RESOURCE_ERROR, G_RESOURCE_ERROR_NOT_FOUND))
|
||
{
|
||
g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
|
||
_("The resource at “%s” does not exist"),
|
||
resource->path);
|
||
}
|
||
else
|
||
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
|
||
my_error->message);
|
||
g_clear_error (&my_error);
|
||
return NULL;
|
||
}
|
||
|
||
res = _g_resource_file_input_stream_new (stream, file);
|
||
g_object_unref (stream);
|
||
return res;
|
||
}
|
||
|
||
typedef GFileMonitor GResourceFileMonitor;
|
||
typedef GFileMonitorClass GResourceFileMonitorClass;
|
||
|
||
GType g_resource_file_monitor_get_type (void);
|
||
|
||
G_DEFINE_TYPE (GResourceFileMonitor, g_resource_file_monitor, G_TYPE_FILE_MONITOR)
|
||
|
||
static gboolean
|
||
g_resource_file_monitor_cancel (GFileMonitor *monitor)
|
||
{
|
||
return TRUE;
|
||
}
|
||
|
||
static void
|
||
g_resource_file_monitor_init (GResourceFileMonitor *monitor)
|
||
{
|
||
}
|
||
|
||
static void
|
||
g_resource_file_monitor_class_init (GResourceFileMonitorClass *class)
|
||
{
|
||
class->cancel = g_resource_file_monitor_cancel;
|
||
}
|
||
|
||
static GFileMonitor *
|
||
g_resource_file_monitor_file (GFile *file,
|
||
GFileMonitorFlags flags,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
return g_object_new (g_resource_file_monitor_get_type (), NULL);
|
||
}
|
||
|
||
static void
|
||
g_resource_file_file_iface_init (GFileIface *iface)
|
||
{
|
||
iface->dup = g_resource_file_dup;
|
||
iface->hash = g_resource_file_hash;
|
||
iface->equal = g_resource_file_equal;
|
||
iface->is_native = g_resource_file_is_native;
|
||
iface->has_uri_scheme = g_resource_file_has_uri_scheme;
|
||
iface->get_uri_scheme = g_resource_file_get_uri_scheme;
|
||
iface->get_basename = g_resource_file_get_basename;
|
||
iface->get_path = g_resource_file_get_path;
|
||
iface->get_uri = g_resource_file_get_uri;
|
||
iface->get_parse_name = g_resource_file_get_parse_name;
|
||
iface->get_parent = g_resource_file_get_parent;
|
||
iface->prefix_matches = g_resource_file_prefix_matches;
|
||
iface->get_relative_path = g_resource_file_get_relative_path;
|
||
iface->resolve_relative_path = g_resource_file_resolve_relative_path;
|
||
iface->get_child_for_display_name = g_resource_file_get_child_for_display_name;
|
||
iface->enumerate_children = g_resource_file_enumerate_children;
|
||
iface->query_info = g_resource_file_query_info;
|
||
iface->query_filesystem_info = g_resource_file_query_filesystem_info;
|
||
iface->query_settable_attributes = g_resource_file_query_settable_attributes;
|
||
iface->query_writable_namespaces = g_resource_file_query_writable_namespaces;
|
||
iface->read_fn = g_resource_file_read;
|
||
iface->monitor_file = g_resource_file_monitor_file;
|
||
|
||
iface->supports_thread_contexts = TRUE;
|
||
}
|
||
|
||
static GFileInfo *g_resource_file_enumerator_next_file (GFileEnumerator *enumerator,
|
||
GCancellable *cancellable,
|
||
GError **error);
|
||
static gboolean g_resource_file_enumerator_close (GFileEnumerator *enumerator,
|
||
GCancellable *cancellable,
|
||
GError **error);
|
||
|
||
static void
|
||
g_resource_file_enumerator_finalize (GObject *object)
|
||
{
|
||
GResourceFileEnumerator *resource;
|
||
|
||
resource = G_RESOURCE_FILE_ENUMERATOR (object);
|
||
|
||
g_strfreev (resource->children);
|
||
g_free (resource->path);
|
||
g_free (resource->attributes);
|
||
|
||
G_OBJECT_CLASS (g_resource_file_enumerator_parent_class)->finalize (object);
|
||
}
|
||
|
||
static void
|
||
g_resource_file_enumerator_class_init (GResourceFileEnumeratorClass *klass)
|
||
{
|
||
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
||
GFileEnumeratorClass *enumerator_class = G_FILE_ENUMERATOR_CLASS (klass);
|
||
|
||
gobject_class->finalize = g_resource_file_enumerator_finalize;
|
||
|
||
enumerator_class->next_file = g_resource_file_enumerator_next_file;
|
||
enumerator_class->close_fn = g_resource_file_enumerator_close;
|
||
}
|
||
|
||
static void
|
||
g_resource_file_enumerator_init (GResourceFileEnumerator *resource)
|
||
{
|
||
}
|
||
|
||
static GFileEnumerator *
|
||
_g_resource_file_enumerator_new (GResourceFile *file,
|
||
const char *attributes,
|
||
GFileQueryInfoFlags flags,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
GResourceFileEnumerator *resource;
|
||
char **children;
|
||
gboolean res;
|
||
|
||
children = g_resources_enumerate_children (file->path, 0, NULL);
|
||
if (children == NULL &&
|
||
strcmp ("/", file->path) != 0)
|
||
{
|
||
res = g_resources_get_info (file->path, 0, NULL, NULL, NULL);
|
||
if (res)
|
||
g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_DIRECTORY,
|
||
_("The resource at “%s” is not a directory"),
|
||
file->path);
|
||
else
|
||
g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
|
||
_("The resource at “%s” does not exist"),
|
||
file->path);
|
||
return NULL;
|
||
}
|
||
|
||
resource = g_object_new (G_TYPE_RESOURCE_FILE_ENUMERATOR,
|
||
"container", file,
|
||
NULL);
|
||
|
||
resource->children = children;
|
||
resource->path = g_strdup (file->path);
|
||
resource->attributes = g_strdup (attributes);
|
||
resource->flags = flags;
|
||
|
||
return G_FILE_ENUMERATOR (resource);
|
||
}
|
||
|
||
static GFileInfo *
|
||
g_resource_file_enumerator_next_file (GFileEnumerator *enumerator,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
GResourceFileEnumerator *resource = G_RESOURCE_FILE_ENUMERATOR (enumerator);
|
||
char *path;
|
||
GFileInfo *info;
|
||
GFile *file;
|
||
|
||
if (resource->children == NULL ||
|
||
resource->children[resource->index] == NULL)
|
||
return NULL;
|
||
|
||
path = g_build_path ("/", resource->path, resource->children[resource->index++], NULL);
|
||
file = g_resource_file_new_for_path (path);
|
||
g_free (path);
|
||
|
||
info = g_file_query_info (file,
|
||
resource->attributes,
|
||
resource->flags,
|
||
cancellable,
|
||
error);
|
||
|
||
g_object_unref (file);
|
||
|
||
return info;
|
||
}
|
||
|
||
static gboolean
|
||
g_resource_file_enumerator_close (GFileEnumerator *enumerator,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
return TRUE;
|
||
}
|
||
|
||
|
||
struct _GResourceFileInputStream
|
||
{
|
||
GFileInputStream parent_instance;
|
||
GInputStream *stream;
|
||
GFile *file;
|
||
};
|
||
|
||
struct _GResourceFileInputStreamClass
|
||
{
|
||
GFileInputStreamClass parent_class;
|
||
};
|
||
|
||
#define g_resource_file_input_stream_get_type _g_resource_file_input_stream_get_type
|
||
G_DEFINE_TYPE (GResourceFileInputStream, g_resource_file_input_stream, G_TYPE_FILE_INPUT_STREAM)
|
||
|
||
static gssize g_resource_file_input_stream_read (GInputStream *stream,
|
||
void *buffer,
|
||
gsize count,
|
||
GCancellable *cancellable,
|
||
GError **error);
|
||
static gssize g_resource_file_input_stream_skip (GInputStream *stream,
|
||
gsize count,
|
||
GCancellable *cancellable,
|
||
GError **error);
|
||
static gboolean g_resource_file_input_stream_close (GInputStream *stream,
|
||
GCancellable *cancellable,
|
||
GError **error);
|
||
static goffset g_resource_file_input_stream_tell (GFileInputStream *stream);
|
||
static gboolean g_resource_file_input_stream_can_seek (GFileInputStream *stream);
|
||
static gboolean g_resource_file_input_stream_seek (GFileInputStream *stream,
|
||
goffset offset,
|
||
GSeekType type,
|
||
GCancellable *cancellable,
|
||
GError **error);
|
||
static GFileInfo *g_resource_file_input_stream_query_info (GFileInputStream *stream,
|
||
const char *attributes,
|
||
GCancellable *cancellable,
|
||
GError **error);
|
||
|
||
static void
|
||
g_resource_file_input_stream_finalize (GObject *object)
|
||
{
|
||
GResourceFileInputStream *file = G_RESOURCE_FILE_INPUT_STREAM (object);
|
||
|
||
g_object_unref (file->stream);
|
||
g_object_unref (file->file);
|
||
G_OBJECT_CLASS (g_resource_file_input_stream_parent_class)->finalize (object);
|
||
}
|
||
|
||
static void
|
||
g_resource_file_input_stream_class_init (GResourceFileInputStreamClass *klass)
|
||
{
|
||
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
||
GInputStreamClass *stream_class = G_INPUT_STREAM_CLASS (klass);
|
||
GFileInputStreamClass *file_stream_class = G_FILE_INPUT_STREAM_CLASS (klass);
|
||
|
||
gobject_class->finalize = g_resource_file_input_stream_finalize;
|
||
|
||
stream_class->read_fn = g_resource_file_input_stream_read;
|
||
stream_class->skip = g_resource_file_input_stream_skip;
|
||
stream_class->close_fn = g_resource_file_input_stream_close;
|
||
file_stream_class->tell = g_resource_file_input_stream_tell;
|
||
file_stream_class->can_seek = g_resource_file_input_stream_can_seek;
|
||
file_stream_class->seek = g_resource_file_input_stream_seek;
|
||
file_stream_class->query_info = g_resource_file_input_stream_query_info;
|
||
}
|
||
|
||
static void
|
||
g_resource_file_input_stream_init (GResourceFileInputStream *info)
|
||
{
|
||
}
|
||
|
||
static GFileInputStream *
|
||
_g_resource_file_input_stream_new (GInputStream *in_stream, GFile *file)
|
||
{
|
||
GResourceFileInputStream *stream;
|
||
|
||
stream = g_object_new (G_TYPE_RESOURCE_FILE_INPUT_STREAM, NULL);
|
||
stream->stream = g_object_ref (in_stream);
|
||
stream->file = g_object_ref (file);
|
||
|
||
return G_FILE_INPUT_STREAM (stream);
|
||
}
|
||
|
||
static gssize
|
||
g_resource_file_input_stream_read (GInputStream *stream,
|
||
void *buffer,
|
||
gsize count,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
GResourceFileInputStream *file = G_RESOURCE_FILE_INPUT_STREAM (stream);
|
||
return g_input_stream_read (file->stream,
|
||
buffer, count, cancellable, error);
|
||
}
|
||
|
||
static gssize
|
||
g_resource_file_input_stream_skip (GInputStream *stream,
|
||
gsize count,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
GResourceFileInputStream *file = G_RESOURCE_FILE_INPUT_STREAM (stream);
|
||
return g_input_stream_skip (file->stream,
|
||
count, cancellable, error);
|
||
}
|
||
|
||
static gboolean
|
||
g_resource_file_input_stream_close (GInputStream *stream,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
GResourceFileInputStream *file = G_RESOURCE_FILE_INPUT_STREAM (stream);
|
||
return g_input_stream_close (file->stream,
|
||
cancellable, error);
|
||
}
|
||
|
||
|
||
static goffset
|
||
g_resource_file_input_stream_tell (GFileInputStream *stream)
|
||
{
|
||
GResourceFileInputStream *file = G_RESOURCE_FILE_INPUT_STREAM (stream);
|
||
|
||
if (!G_IS_SEEKABLE (file->stream))
|
||
return 0;
|
||
|
||
return g_seekable_tell (G_SEEKABLE (file->stream));
|
||
}
|
||
|
||
static gboolean
|
||
g_resource_file_input_stream_can_seek (GFileInputStream *stream)
|
||
{
|
||
GResourceFileInputStream *file = G_RESOURCE_FILE_INPUT_STREAM (stream);
|
||
|
||
return G_IS_SEEKABLE (file->stream) && g_seekable_can_seek (G_SEEKABLE (file->stream));
|
||
}
|
||
|
||
static gboolean
|
||
g_resource_file_input_stream_seek (GFileInputStream *stream,
|
||
goffset offset,
|
||
GSeekType type,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
GResourceFileInputStream *file = G_RESOURCE_FILE_INPUT_STREAM (stream);
|
||
|
||
if (!G_IS_SEEKABLE (file->stream))
|
||
{
|
||
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
|
||
_("Input stream doesn’t implement seek"));
|
||
return FALSE;
|
||
}
|
||
|
||
return g_seekable_seek (G_SEEKABLE (file->stream),
|
||
offset, type, cancellable, error);
|
||
}
|
||
|
||
static GFileInfo *
|
||
g_resource_file_input_stream_query_info (GFileInputStream *stream,
|
||
const char *attributes,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
GResourceFileInputStream *file = G_RESOURCE_FILE_INPUT_STREAM (stream);
|
||
|
||
return g_file_query_info (file->file, attributes, 0, cancellable, error);
|
||
}
|