** Fix for bug #554418

2008-10-01  Milan Crha  <mcrha@redhat.com>

	** Fix for bug #554418

	* e-util/e-util.h: (e_util_guess_mime_type):
	* e-util/e-util.c: (e_util_guess_mime_type): Guess mime_type based on
	the file content only when permitted by the caller, otherwise
	check based on the filename only, where it fallbacks if file
	content guess fails.

	* mail/em-utils.c: (em_utils_snoop_type):
	* mail/em-popup.c: (emp_standard_menu_factory):
	Guess mime_type based on the filename only.

	* composer/e-msg-composer.c: (handle_uri),
	(e_msg_composer_add_inline_image_from_file): Guess mime_type based
	on the file content, if failed, then on the filename.

	* widgets/misc/e-attachment.c: (attachment_guess_mime_type):
	Allow guessing mime_type based on the file content.

	* calendar/gui/dialogs/comp-editor.c: (set_attachment_list):
	* calendar/gui/e-cal-popup.c: (ecalp_standard_menu_factory):
	Allow/disallow guessing of the mime_type based on the file content.


svn path=/trunk/; revision=36529

3 files changed, 43 insertions, 19 deletions

diff --git a/e-util/ChangeLog b/e-util/ChangeLog
index e85172b9ea..4c2e1d14d6 100644
--- a/e-util/ChangeLog
+++ b/e-util/ChangeLog
@@ -1,3 +1,13 @@
+2008-10-01  Milan Crha  <mcrha@redhat.com>
+
+	** Fix for bug #554418
+
+	* e-util.h: (e_util_guess_mime_type):
+	* e-util.c: (e_util_guess_mime_type): Guess mime_type based on
+	the file content only when permitted by the caller, otherwise
+	check based on the filename only, where it fallbacks if file
+	content guess fails.
+
 2008-09-29  Sankar P  <psankar@novell.com>
 
 License Changes
diff --git a/e-util/e-util.c b/e-util/e-util.c
index 21f448b15b..97cd6265a6 100644
--- a/e-util/e-util.c
+++ b/e-util/e-util.c
@@ -1172,37 +1172,51 @@ e_file_lock_exists ()
 /**
  * e_util_guess_mime_type:
  * @filename: it's a local file name, or URI.
+ * @localfile: set to TRUE if can check the local file content, FALSE to check only based on the filename itself.
  * Returns: NULL or newly allocated string with a mime_type of the given file. Free with g_free.
  *
- * Guesses mime_type for the given file_name.
+ * Guesses mime_type for the given filename.
  **/
 char *
-e_util_guess_mime_type (const char *filename)
+e_util_guess_mime_type (const char *filename, gboolean localfile)
 {
-	GFile *file;
-	GFileInfo *fi;
-	char *mime_type;
+	char *mime_type = NULL;
 
 	g_return_val_if_fail (filename != NULL, NULL);
 
-	if (strstr (filename, "://"))
-		file = g_file_new_for_uri (filename);
-	else
-		file = g_file_new_for_path (filename);
+	if (localfile) {
+		GFile *file;
 
-	if (!file)
-		return NULL;
+		if (strstr (filename, "://"))
+			file = g_file_new_for_uri (filename);
+		else
+			file = g_file_new_for_path (filename);
 
-	fi = g_file_query_info (file, G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE, G_FILE_QUERY_INFO_NONE, NULL, NULL);
-	if (!fi) {
-		g_object_unref (file);
-		return NULL;
+		if (file) {
+			GFileInfo *fi;
+
+			fi = g_file_query_info (file, G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE, G_FILE_QUERY_INFO_NONE, NULL, NULL);
+			if (fi) {
+				mime_type = g_content_type_get_mime_type (g_file_info_get_content_type (fi));
+	
+				g_object_unref (fi);
+			}
+
+			g_object_unref (file);
+		}
 	}
 
-	mime_type = g_content_type_get_mime_type (g_file_info_get_content_type (fi));
+	if (!mime_type) {
+		/* file doesn't exists locally, thus guess based on the filename */
+		gboolean uncertain = FALSE;
+		gchar *content_type;
 
-	g_object_unref (fi);
-	g_object_unref (file);
+		content_type = g_content_type_guess (filename, NULL, 0, &uncertain);
+		if (content_type) {
+			mime_type = g_content_type_get_mime_type (content_type);
+			g_free (content_type);
+		}
+	}
 
 	return mime_type;
 }
diff --git a/e-util/e-util.h b/e-util/e-util.h
index bb6f2ba5fc..78ec9e53c9 100644
--- a/e-util/e-util.h
+++ b/e-util/e-util.h
@@ -116,7 +116,7 @@ gboolean	e_file_lock_create		(void);
 void		e_file_lock_destroy		(void);
 gboolean 	e_file_lock_exists		(void);
 
-gchar *		e_util_guess_mime_type		(const gchar *filename);
+gchar *		e_util_guess_mime_type		(const gchar *filename, gboolean localfile);
 gchar *		e_util_filename_to_uri		(const gchar *filename);
 gchar *		e_util_uri_to_filename		(const gchar *uri);