From 4d01a84a7bc9808eae25c79d262c829d54cc8848 Mon Sep 17 00:00:00 2001
From: Benedikt Meurer <benny@xfce.org>
Date: Sat, 27 Aug 2005 14:49:13 +0000
Subject: [PATCH] 2005-08-27 Benedikt Meurer <benny@xfce.org>
* thunar-vfs/thunar-vfs-mime-legacy.c: Add support for MIME-type
aliases and parents to the legacy implementation.
* configure.in.in, thunar-vfs/thunar-vfs-mime-database.c: Add support
for determining the MIME type from an extended attribute on SunOS
and Linux.
(Old svn revision: 17126)
---
ChangeLog | 8 ++
configure.in.in | 8 +-
thunar-vfs/thunar-vfs-mime-database.c | 42 ++++++-
thunar-vfs/thunar-vfs-mime-legacy.c | 159 +++++++++++++++++++++++++-
4 files changed, 210 insertions(+), 7 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index a39b519ac..1570b5636 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2005-08-27 Benedikt Meurer <benny@xfce.org>
+
+ * thunar-vfs/thunar-vfs-mime-legacy.c: Add support for MIME-type
+ aliases and parents to the legacy implementation.
+ * configure.in.in, thunar-vfs/thunar-vfs-mime-database.c: Add support
+ for determining the MIME type from an extended attribute on SunOS
+ and Linux.
+
2005-08-22 Benedikt Meurer <benny@xfce.org>
* thunar/thunar-path-entry.c: Add drag support for the path entry icon.
diff --git a/configure.in.in b/configure.in.in
index 84cad84bb..39b0f158d 100644
--- a/configure.in.in
+++ b/configure.in.in
@@ -70,16 +70,16 @@ AC_SUBST([THUNAR_VERSION_API])
dnl **********************************
dnl *** Check for standard headers ***
dnl **********************************
-AC_CHECK_HEADERS([dirent.h errno.h fcntl.h fnmatch.h fstab.h grp.h locale.h \
- math.h memory.h pwd.h stdlib.h string.h \
- sys/extattr.h sys/cdio.h sys/mman.h \
+AC_CHECK_HEADERS([dirent.h errno.h fcntl.h fnmatch.h fstab.h \
+ grp.h locale.h math.h memory.h pwd.h stdlib.h string.h \
+ sys/xattr.h sys/extattr.h sys/cdio.h sys/mman.h \
sys/mount.h sys/stat.h sys/time.h sys/param.h time.h])
dnl ************************************
dnl *** Check for standard functions ***
dnl ************************************
AC_FUNC_MMAP()
-AC_CHECK_FUNCS([extattr_get_fd lchmod localtime_r readdir_r \
+AC_CHECK_FUNCS([attropen extattr_get_fd fgetxattr lchmod localtime_r readdir_r \
setgroupent setpassent])
dnl ***************************************
diff --git a/thunar-vfs/thunar-vfs-mime-database.c b/thunar-vfs/thunar-vfs-mime-database.c
index fb553fe29..805719bdd 100644
--- a/thunar-vfs/thunar-vfs-mime-database.c
+++ b/thunar-vfs/thunar-vfs-mime-database.c
@@ -34,6 +34,9 @@
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
+#ifdef HAVE_SYS_XATTR_H
+#include <sys/xattr.h>
+#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
@@ -986,6 +989,29 @@ thunar_vfs_mime_database_get_info_for_file (ThunarVfsMimeDatabase *database,
info = thunar_vfs_mime_database_get_info_for_name_locked (database, name);
g_mutex_unlock (database->lock);
+#ifdef HAVE_ATTROPEN
+ /* check if we have a valid mime type stored in the extattr (SunOS) */
+ if (G_UNLIKELY (info == NULL))
+ {
+ fd = attropen (path, "user.mime_type", O_RDONLY);
+ if (G_UNLIKELY (fd >= 0))
+ {
+ if (fstat (fd, &stat) == 0)
+ {
+ buffer = g_new (gchar, stat.st_size + 1);
+ nbytes = read (fd, buffer, stat.st_size);
+ if (G_LIKELY (nbytes >= 3))
+ {
+ buffer[nbytes] = '\0';
+ info = thunar_vfs_mime_database_get_info (database, buffer);
+ }
+ g_free (buffer);
+ }
+ close (fd);
+ }
+ }
+#endif
+
/* try to determine the type from the file content */
if (G_UNLIKELY (info == NULL))
{
@@ -993,7 +1019,7 @@ thunar_vfs_mime_database_get_info_for_file (ThunarVfsMimeDatabase *database,
if (G_LIKELY (fd >= 0))
{
#ifdef HAVE_EXTATTR_GET_FD
- /* check if we have a valid mime type stored in the extattr */
+ /* check if we have a valid mime type stored in the extattr (TrustedBSD) */
nbytes = extattr_get_fd (fd, EXTATTR_NAMESPACE_USER, "mime_type", NULL, 0);
if (G_UNLIKELY (nbytes >= 3))
{
@@ -1006,6 +1032,20 @@ thunar_vfs_mime_database_get_info_for_file (ThunarVfsMimeDatabase *database,
}
g_free (buffer);
}
+#elif defined(HAVE_FGETXATTR)
+ /* check for valid mime type stored in the extattr (Linux) */
+ nbytes = fgetxattr (fd, "user.mime_type", NULL, 0);
+ if (G_UNLIKELY (nbytes >= 3))
+ {
+ buffer = g_new (gchar, nbytes + 1);
+ nbytes = fgetxattr (fd, "user.mime_type", buffer, nbytes);
+ if (G_LIKELY (nbytes >= 3))
+ {
+ buffer[nbytes] = '\0';
+ info = thunar_vfs_mime_database_get_info (database, buffer);
+ }
+ g_free (buffer);
+ }
#endif
/* stat the file and verify that we have a regular file, which is not empty */
diff --git a/thunar-vfs/thunar-vfs-mime-legacy.c b/thunar-vfs/thunar-vfs-mime-legacy.c
index 7d7e8ffe5..c1d7dc91b 100644
--- a/thunar-vfs/thunar-vfs-mime-legacy.c
+++ b/thunar-vfs/thunar-vfs-mime-legacy.c
@@ -71,8 +71,12 @@ static guint thunar_vfs_mime_legacy_lookup_parents (ThunarVfsMime
guint max_parents);
static GList *thunar_vfs_mime_legacy_get_stop_characters (ThunarVfsMimeProvider *provider);
static gsize thunar_vfs_mime_legacy_get_max_buffer_extents (ThunarVfsMimeProvider *provider);
+static void thunar_vfs_mime_legacy_parse_aliases (ThunarVfsMimeLegacy *legacy,
+ const gchar *directory);
static gboolean thunar_vfs_mime_legacy_parse_globs (ThunarVfsMimeLegacy *legacy,
const gchar *directory);
+static void thunar_vfs_mime_legacy_parse_subclasses (ThunarVfsMimeLegacy *legacy,
+ const gchar *directory);
@@ -92,6 +96,9 @@ struct _ThunarVfsMimeLegacy
GHashTable *literals;
ThunarVfsMimeLegacySuffix *suffixes;
GList *globs;
+
+ GHashTable *aliases;
+ GHashTable *parents;
};
struct _ThunarVfsMimeLegacyGlob
@@ -176,6 +183,9 @@ thunar_vfs_mime_legacy_init (ThunarVfsMimeLegacy *legacy)
legacy->suffix_chunk = g_mem_chunk_create (ThunarVfsMimeLegacySuffix, 128, G_ALLOC_ONLY);
legacy->literals = g_hash_table_new (g_str_hash, g_str_equal);
+
+ legacy->aliases = g_hash_table_new (g_str_hash, g_str_equal);
+ legacy->parents = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, (GDestroyNotify) g_list_free);
}
@@ -185,6 +195,12 @@ thunar_vfs_mime_legacy_finalize (ExoObject *object)
{
ThunarVfsMimeLegacy *legacy = THUNAR_VFS_MIME_LEGACY (object);
+ /* free parents hash table */
+ g_hash_table_destroy (legacy->parents);
+
+ /* free aliases hash table */
+ g_hash_table_destroy (legacy->aliases);
+
/* free the list of globs */
g_list_free (legacy->globs);
@@ -344,7 +360,7 @@ static const gchar*
thunar_vfs_mime_legacy_lookup_alias (ThunarVfsMimeProvider *provider,
const gchar *alias)
{
- return NULL;
+ return g_hash_table_lookup (THUNAR_VFS_MIME_LEGACY (provider)->aliases, alias);
}
@@ -355,7 +371,15 @@ thunar_vfs_mime_legacy_lookup_parents (ThunarVfsMimeProvider *provider,
gchar **parents,
guint max_parents)
{
- return 0;
+ GList *lp;
+ guint n = 0;
+
+ /* determine the known parents for the MIME-type */
+ lp = g_hash_table_lookup (THUNAR_VFS_MIME_LEGACY (provider)->parents, mime_type);
+ for (; lp != NULL && n < max_parents; lp = lp->next, ++n, ++parents)
+ *parents = lp->data;
+
+ return n;
}
@@ -383,6 +407,66 @@ thunar_vfs_mime_legacy_get_max_buffer_extents (ThunarVfsMimeProvider *provider)
+static void
+thunar_vfs_mime_legacy_parse_aliases (ThunarVfsMimeLegacy *legacy,
+ const gchar *directory)
+{
+ gchar line[2048];
+ gchar *alias;
+ gchar *name;
+ gchar *path;
+ gchar *lp;
+ FILE *fp;
+
+ /* try to open the "aliases" file */
+ path = g_build_filename (directory, "aliases", NULL);
+ fp = fopen (path, "r");
+ g_free (path);
+
+ /* check if we succeed */
+ if (G_UNLIKELY (fp == NULL))
+ return;
+
+ /* parse all aliases */
+ while (fgets (line, sizeof (line), fp) != NULL)
+ {
+ /* skip whitespace/comments */
+ for (lp = line; g_ascii_isspace (*lp); ++lp);
+ if (G_UNLIKELY (*lp == '\0' || *lp == '#'))
+ continue;
+
+ /* extract the alias name */
+ for (alias = lp; *lp != '\0' && !g_ascii_isspace (*lp); ++lp);
+ if (G_UNLIKELY (*lp == '\0' || alias == lp))
+ continue;
+ *lp++ = '\0';
+
+ /* skip whitespace */
+ for (; G_UNLIKELY (g_ascii_isspace (*lp)); ++lp);
+ if (G_UNLIKELY (*lp == '\0'))
+ continue;
+
+ /* extract the MIME-type name */
+ for (name = lp; *lp != '\0' && *lp != '\n' && *lp != '\r'; ++lp);
+ if (G_UNLIKELY (name == lp))
+ continue;
+ *lp = '\0';
+
+ /* insert the alias into the string chunk */
+ alias = g_string_chunk_insert_const (legacy->string_chunk, alias);
+
+ /* insert the MIME-type name into the string chunk */
+ name = g_string_chunk_insert_const (legacy->string_chunk, name);
+
+ /* insert the association into the aliases hash table */
+ g_hash_table_insert (legacy->aliases, alias, name);
+ }
+
+ fclose (fp);
+}
+
+
+
static gboolean
thunar_vfs_mime_legacy_parse_globs (ThunarVfsMimeLegacy *legacy,
const gchar *directory)
@@ -451,6 +535,71 @@ thunar_vfs_mime_legacy_parse_globs (ThunarVfsMimeLegacy *legacy,
+static void
+thunar_vfs_mime_legacy_parse_subclasses (ThunarVfsMimeLegacy *legacy,
+ const gchar *directory)
+{
+ gchar line[2048];
+ GList *parents;
+ gchar *subclass;
+ gchar *name;
+ gchar *path;
+ gchar *lp;
+ FILE *fp;
+
+ /* try to open the "subclasses" file */
+ path = g_build_filename (directory, "subclasses", NULL);
+ fp = fopen (path, "r");
+ g_free (path);
+
+ /* check if we succeed */
+ if (G_UNLIKELY (fp == NULL))
+ return;
+
+ /* parse all subclasses */
+ while (fgets (line, sizeof (line), fp) != NULL)
+ {
+ /* skip whitespace/comments */
+ for (lp = line; g_ascii_isspace (*lp); ++lp);
+ if (G_UNLIKELY (*lp == '\0' || *lp == '#'))
+ continue;
+
+ /* extract the subclass name */
+ for (subclass = lp; *lp != '\0' && !g_ascii_isspace (*lp); ++lp);
+ if (G_UNLIKELY (*lp == '\0' || subclass == lp))
+ continue;
+ *lp++ = '\0';
+
+ /* skip whitespace */
+ for (; G_UNLIKELY (g_ascii_isspace (*lp)); ++lp);
+ if (G_UNLIKELY (*lp == '\0'))
+ continue;
+
+ /* extract the MIME-type name */
+ for (name = lp; *lp != '\0' && *lp != '\n' && *lp != '\r'; ++lp);
+ if (G_UNLIKELY (name == lp))
+ continue;
+ *lp = '\0';
+
+ /* insert the subclass into the string chunk */
+ subclass = g_string_chunk_insert_const (legacy->string_chunk, subclass);
+
+ /* insert the MIME-type name into the string chunk */
+ name = g_string_chunk_insert_const (legacy->string_chunk, name);
+
+ /* add the MIME-type name to the list of parents for the subclass */
+ parents = g_hash_table_lookup (legacy->parents, subclass);
+ if (G_UNLIKELY (parents != NULL))
+ parents = g_list_copy (parents);
+ parents = g_list_append (parents, name);
+ g_hash_table_insert (legacy->parents, subclass, parents);
+ }
+
+ fclose (fp);
+}
+
+
+
/**
* thunar_vfs_mime_legacy_new:
* @directory : an XDG mime base directory.
@@ -479,6 +628,12 @@ thunar_vfs_mime_legacy_new (const gchar *directory)
return NULL;
}
+ /* parse the aliases file (optional) */
+ thunar_vfs_mime_legacy_parse_aliases (legacy, directory);
+
+ /* parse the subclasses file (optional) */
+ thunar_vfs_mime_legacy_parse_subclasses (legacy, directory);
+
/* we got it */
return THUNAR_VFS_MIME_PROVIDER (legacy);
}
--
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