New filter to do CRLF<->LF conversion. (Currently only tested in the

	* camel-mime-filter-crlf.c: New filter to do CRLF<->LF conversion.
	(Currently only tested in the LF->CRLF direction.)

	* camel-mime-part.c (write_to_stream): if content-type is text,
	and it's QP or B64 encoded, pass through the CRLF filter before
	the other filter to satisfy the "canonical encoding" rules in the
	MIME spec.

svn path=/trunk/; revision=3529

1 files changed, 53 insertions, 0 deletions

diff --git a/camel/camel-mime-filter-crlf.h b/camel/camel-mime-filter-crlf.h
new file mode 100644
index 0000000000..57b6869446
--- /dev/null
+++ b/camel/camel-mime-filter-crlf.h
@@ -0,0 +1,53 @@
+/*
+ *  Copyright (C) 2000 Helix Code Inc.
+ *
+ *  Authors: Dan Winship <danw@helixcode.com>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Library General Public License
+ *  as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program 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 Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Library General Public
+ *  License along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _CAMEL_MIME_FILTER_CRLF_H
+#define _CAMEL_MIME_FILTER_CRLF_H
+
+#include <camel/camel-mime-filter.h>
+
+#define CAMEL_MIME_FILTER_CRLF_TYPE         (camel_mime_filter_crlf_get_type ())
+#define CAMEL_MIME_FILTER_CRLF(obj)         GTK_CHECK_CAST (obj, CAMEL_MIME_FILTER_CRLF_TYPE, CamelMimeFilterCRLF)
+#define CAMEL_MIME_FILTER_CRLF_CLASS(klass) GTK_CHECK_CLASS_CAST (klass, CAMEL_MIME_FILTER_CRLF_TYPE, CamelMimeFilterCRLFClass)
+#define CAMEL_IS_MIME_FILTER_CRLF(obj)      GTK_CHECK_TYPE (obj, CAMEL_MIME_FILTER_CRLF_TYPE)
+
+typedef struct _CamelMimeFilterCRLFClass CamelMimeFilterCRLFClass;
+
+typedef enum {
+	CAMEL_MIME_FILTER_CRLF_ENCODE,
+	CAMEL_MIME_FILTER_CRLF_DECODE
+} CamelMimeFilterCRLFDirection;
+
+struct _CamelMimeFilterCRLF {
+	CamelMimeFilter parent;
+
+	CamelMimeFilterCRLFDirection direction;
+	gboolean saw_cr;
+};
+
+struct _CamelMimeFilterCRLFClass {
+	CamelMimeFilterClass parent_class;
+};
+
+GtkType camel_mime_filter_crlf_get_type (void);
+
+CamelMimeFilter *camel_mime_filter_crlf_new (CamelMimeFilterCRLFDirection direction);
+
+#endif /* ! _CAMEL_MIME_FILTER_CRLF_H */