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-rw-r--r--camel/ChangeLog13
-rw-r--r--camel/Makefile.am2
-rw-r--r--camel/camel-mime-filter-chomp.c154
-rw-r--r--camel/camel-mime-filter-chomp.h47
-rw-r--r--camel/camel-pgp-mime.c51
-rw-r--r--camel/camel-types.h1
6 files changed, 256 insertions, 12 deletions
diff --git a/camel/ChangeLog b/camel/ChangeLog
index 02a22a3cc2..99235d0922 100644
--- a/camel/ChangeLog
+++ b/camel/ChangeLog
@@ -1,3 +1,16 @@
+2002-02-27 Jeffrey Stedfast <fejj@ximian.com>
+
+ * camel-mime-filter-chomp.c (camel_mime_filter_chomp_new): New
+ stream filter that chomps excess trailing whitespace from the end
+ of the stream. This is needed to update the PGP/MIME code to
+ comply with rfc3156.
+
+ * camel-pgp-mime.c (camel_pgp_mime_part_verify): Don't attach a
+ from filter, if it ain't from-filtered already, then we'll just be
+ breaking stuff. To become rfc3156 compliant, add a chomp filter
+ here.
+ (camel_pgp_mime_part_sign): Add a chomp filter here too.
+
2002-02-27 Not Zed <NotZed@Ximian.com>
* camel-mime-part.c (init_header_name_table): Changed header
diff --git a/camel/Makefile.am b/camel/Makefile.am
index 4e626c45ea..a59d75f496 100644
--- a/camel/Makefile.am
+++ b/camel/Makefile.am
@@ -45,6 +45,7 @@ libcamel_la_SOURCES = \
camel-mime-filter-bestenc.c \
camel-mime-filter-basic.c \
camel-mime-filter-charset.c \
+ camel-mime-filter-chomp.c \
camel-mime-filter-crlf.c \
camel-mime-filter-from.c \
camel-mime-filter-html.c \
@@ -135,6 +136,7 @@ libcamelinclude_HEADERS = \
camel-mime-filter-bestenc.h \
camel-mime-filter-basic.h \
camel-mime-filter-charset.h \
+ camel-mime-filter-chomp.h \
camel-mime-filter-crlf.h \
camel-mime-filter-from.h \
camel-mime-filter-html.h \
diff --git a/camel/camel-mime-filter-chomp.c b/camel/camel-mime-filter-chomp.c
new file mode 100644
index 0000000000..67a6e71ed7
--- /dev/null
+++ b/camel/camel-mime-filter-chomp.c
@@ -0,0 +1,154 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ * Copyright (C) 2002 Ximian, Inc.
+ *
+ * Authors: Jeffrey Stedfast <fejj@ximian.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <ctype.h>
+
+#include "camel-mime-filter-chomp.h"
+
+static void filter (CamelMimeFilter *f, char *in, size_t len, size_t prespace,
+ char **out, size_t *outlen, size_t *outprespace);
+static void complete (CamelMimeFilter *f, char *in, size_t len,
+ size_t prespace, char **out, size_t *outlen,
+ size_t *outprespace);
+static void reset (CamelMimeFilter *f);
+
+
+static void
+camel_mime_filter_chomp_class_init (CamelMimeFilterChompClass *klass)
+{
+ CamelMimeFilterClass *mime_filter_class =
+ (CamelMimeFilterClass *) klass;
+
+ mime_filter_class->filter = filter;
+ mime_filter_class->complete = complete;
+ mime_filter_class->reset = reset;
+}
+
+CamelType
+camel_mime_filter_chomp_get_type (void)
+{
+ static CamelType type = CAMEL_INVALID_TYPE;
+
+ if (type == CAMEL_INVALID_TYPE) {
+ type = camel_type_register (camel_mime_filter_get_type(), "CamelMimeFilterChomp",
+ sizeof (CamelMimeFilterChomp),
+ sizeof (CamelMimeFilterChompClass),
+ (CamelObjectClassInitFunc) camel_mime_filter_chomp_class_init,
+ NULL,
+ NULL,
+ NULL);
+ }
+
+ return type;
+}
+
+static void
+filter (CamelMimeFilter *f, char *in, size_t len, size_t prespace,
+ char **out, size_t *outlen, size_t *outprespace)
+{
+ register unsigned char *inptr, *s;
+ const unsigned char *inend;
+ register char *outptr;
+
+ camel_mime_filter_set_size (f, len + prespace, FALSE);
+
+ inend = in + len;
+ inptr = in;
+
+ outptr = f->outbuf;
+
+ while (inptr < inend) {
+ s = inptr;
+ while (inptr < inend && isspace ((int) *inptr))
+ inptr++;
+
+ if (inptr < inend) {
+ while (s < inptr)
+ *outptr++ = (char) *s++;
+
+ while (inptr < inend && !isspace ((int) *inptr))
+ *outptr++ = (char) *inptr++;
+ } else {
+#if 0
+ if ((inend - s) >= 2 && *s == '\r' && *(s + 1) == '\n')
+ *outptr++ = *s++;
+ if (*s == '\n')
+ *outptr++ = *s++;
+#endif
+ if (s < inend)
+ camel_mime_filter_backup (f, s, inend - s);
+ break;
+ }
+ }
+
+ *out = f->outbuf;
+ *outlen = outptr - f->outbuf;
+ *outprespace = f->outpre;
+}
+
+static void
+complete (CamelMimeFilter *f, char *in, size_t len, size_t prespace,
+ char **out, size_t *outlen, size_t *outprespace)
+{
+ unsigned char *inptr;
+ char *outptr;
+
+ if (len)
+ filter (f, in, len, prespace, out, outlen, outprespace);
+
+ if (f->backlen) {
+ inptr = (unsigned char *) f->backbuf;
+ outptr = f->outbuf + *outlen;
+
+ /* in the case of a canonical eoln */
+ if (*inptr == '\r' && *(inptr + 1) == '\n') {
+ *outptr++ = *inptr++;
+ (*outlen)++;
+ }
+
+ if (*inptr == '\n') {
+ *outptr++ = *inptr++;
+ (*outlen)++;
+ }
+
+ /* to protect against further complete calls */
+ camel_mime_filter_backup (f, "", 0);
+ }
+}
+
+static void
+reset (CamelMimeFilter *f)
+{
+ /* no-op */
+}
+
+CamelMimeFilter *
+camel_mime_filter_chomp_new (void)
+{
+ CamelMimeFilterChomp *chomp = CAMEL_MIME_FILTER_CHOMP (camel_object_new (CAMEL_MIME_FILTER_CHOMP_TYPE));
+
+ return (CamelMimeFilter *) chomp;
+}
diff --git a/camel/camel-mime-filter-chomp.h b/camel/camel-mime-filter-chomp.h
new file mode 100644
index 0000000000..781f2a6368
--- /dev/null
+++ b/camel/camel-mime-filter-chomp.h
@@ -0,0 +1,47 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ * Copyright (C) 2002 Ximian Inc.
+ *
+ * Authors: Jeffrey Stedfast <fejj@ximian.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef _CAMEL_MIME_FILTER_CHOMP_H
+#define _CAMEL_MIME_FILTER_CHOMP_H
+
+#include <camel/camel-mime-filter.h>
+
+#define CAMEL_MIME_FILTER_CHOMP_TYPE (camel_mime_filter_chomp_get_type ())
+#define CAMEL_MIME_FILTER_CHOMP(obj) CAMEL_CHECK_CAST (obj, CAMEL_MIME_FILTER_CHOMP_TYPE, CamelMimeFilterChomp)
+#define CAMEL_MIME_FILTER_CHOMP_CLASS(klass) CAMEL_CHECK_CLASS_CAST (klass, CAMEL_MIME_FILTER_CHOMP_TYPE, CamelMimeFilterChompClass)
+#define CAMEL_IS_MIME_FILTER_CHOMP(obj) CAMEL_CHECK_TYPE (obj, CAMEL_MIME_FILTER_CHOMP_TYPE)
+
+typedef struct _CamelMimeFilterChompClass CamelMimeFilterChompClass;
+
+struct _CamelMimeFilterChomp {
+ CamelMimeFilter parent;
+
+};
+
+struct _CamelMimeFilterChompClass {
+ CamelMimeFilterClass parent_class;
+};
+
+CamelType camel_mime_filter_chomp_get_type (void);
+
+CamelMimeFilter *camel_mime_filter_chomp_new (void);
+
+#endif /* ! _CAMEL_MIME_FILTER_CHOMP_H */
diff --git a/camel/camel-pgp-mime.c b/camel/camel-pgp-mime.c
index f65f0f78a1..4e3eee7cba 100644
--- a/camel/camel-pgp-mime.c
+++ b/camel/camel-pgp-mime.c
@@ -30,6 +30,7 @@
#include "camel-mime-filter-from.h"
#include "camel-mime-filter-crlf.h"
#include "camel-mime-filter-charset.h"
+#include "camel-mime-filter-chomp.h"
#include "camel-stream-filter.h"
#include "camel-stream-mem.h"
#include "camel-stream-fs.h"
@@ -42,7 +43,7 @@
#define d(x) x
-/** rfc2015 stuff (aka PGP/MIME) *******************************/
+/** rfc2015/rfc3156 stuff (aka PGP/MIME) *******************************/
gboolean
camel_pgp_mime_is_rfc2015_signed (CamelMimePart *mime_part)
@@ -235,10 +236,10 @@ camel_pgp_mime_part_sign (CamelPgpContext *context, CamelMimePart **mime_part, c
CamelMultipart *multipart;
CamelContentType *mime_type;
CamelStreamFilter *filtered_stream;
- CamelMimeFilter *crlf_filter, *from_filter;
+ CamelMimeFilter *crlf_filter, *from_filter, *chomp_filter;
CamelStream *stream, *sigstream;
- gchar *hash_type = NULL;
GSList *encodings = NULL;
+ char *hash_type = NULL;
g_return_if_fail (*mime_part != NULL);
g_return_if_fail (CAMEL_IS_MIME_PART (*mime_part));
@@ -251,24 +252,42 @@ camel_pgp_mime_part_sign (CamelPgpContext *context, CamelMimePart **mime_part, c
/* get the cleartext */
stream = camel_stream_mem_new ();
+ filtered_stream = camel_stream_filter_new_with_stream (stream);
+
+ /* Note: see rfc3156, section 3 - second note */
+ from_filter = CAMEL_MIME_FILTER (camel_mime_filter_from_new ());
+ camel_stream_filter_add (filtered_stream, CAMEL_MIME_FILTER (from_filter));
+ camel_object_unref (CAMEL_OBJECT (from_filter));
+
+ /* Note: see rfc3156, section 5.4 (this is the big thing that changed between rfc2015 and rfc3156) */
+ chomp_filter = camel_mime_filter_chomp_new ();
+ camel_stream_filter_add (filtered_stream, CAMEL_MIME_FILTER (chomp_filter));
+ camel_object_unref (CAMEL_OBJECT (chomp_filter));
+
+ /* Note: see rfc2015 or rfc3156, section 5.1 */
crlf_filter = camel_mime_filter_crlf_new (CAMEL_MIME_FILTER_CRLF_ENCODE,
CAMEL_MIME_FILTER_CRLF_MODE_CRLF_ONLY);
- from_filter = CAMEL_MIME_FILTER (camel_mime_filter_from_new ());
- filtered_stream = camel_stream_filter_new_with_stream (stream);
camel_stream_filter_add (filtered_stream, CAMEL_MIME_FILTER (crlf_filter));
camel_object_unref (CAMEL_OBJECT (crlf_filter));
- camel_stream_filter_add (filtered_stream, CAMEL_MIME_FILTER (from_filter));
- camel_object_unref (CAMEL_OBJECT (from_filter));
+
camel_data_wrapper_write_to_stream (CAMEL_DATA_WRAPPER (part), CAMEL_STREAM (filtered_stream));
+ camel_stream_flush (CAMEL_STREAM (filtered_stream));
camel_object_unref (CAMEL_OBJECT (filtered_stream));
/* reset the stream */
camel_stream_reset (stream);
+ printf ("attempting to sign data:\n----- BEGIN SIGNED PART -----\n%.*s----- END SIGNED PART -----\n",
+ CAMEL_STREAM_MEM (stream)->buffer->len, CAMEL_STREAM_MEM (stream)->buffer->data);
+
/* construct the signature stream */
sigstream = camel_stream_mem_new ();
switch (hash) {
+ case CAMEL_CIPHER_HASH_MD2:
+ /* this is a new addition with rfc3156 */
+ hash_type = "pgp-md2";
+ break;
case CAMEL_CIPHER_HASH_MD5:
hash_type = "pgp-md5";
break;
@@ -350,7 +369,7 @@ camel_pgp_mime_part_verify (CamelPgpContext *context, CamelMimePart *mime_part,
CamelMultipart *multipart;
CamelMimePart *part, *sigpart;
CamelStreamFilter *filtered_stream;
- CamelMimeFilter *crlf_filter, *from_filter;
+ CamelMimeFilter *crlf_filter, *chomp_filter;
CamelStream *stream, *sigstream;
CamelCipherValidity *valid;
@@ -366,17 +385,22 @@ camel_pgp_mime_part_verify (CamelPgpContext *context, CamelMimePart *mime_part,
/* get the plain part */
part = camel_multipart_get_part (multipart, 0);
stream = camel_stream_mem_new ();
+ filtered_stream = camel_stream_filter_new_with_stream (stream);
+
+ /* Note: see rfc3156, section 5.4 (this is the big thing that changed between rfc2015 and rfc3156) */
+ chomp_filter = camel_mime_filter_chomp_new ();
+ camel_stream_filter_add (filtered_stream, CAMEL_MIME_FILTER (chomp_filter));
+ camel_object_unref (CAMEL_OBJECT (chomp_filter));
+
+ /* Note: see rfc2015 or rfc3156, section 5.1 */
crlf_filter = camel_mime_filter_crlf_new (CAMEL_MIME_FILTER_CRLF_ENCODE,
CAMEL_MIME_FILTER_CRLF_MODE_CRLF_ONLY);
- from_filter = CAMEL_MIME_FILTER (camel_mime_filter_from_new ());
- filtered_stream = camel_stream_filter_new_with_stream (stream);
camel_stream_filter_add (filtered_stream, CAMEL_MIME_FILTER (crlf_filter));
camel_object_unref (CAMEL_OBJECT (crlf_filter));
- camel_stream_filter_add (filtered_stream, CAMEL_MIME_FILTER (from_filter));
- camel_object_unref (CAMEL_OBJECT (from_filter));
wrapper = CAMEL_DATA_WRAPPER (part);
camel_data_wrapper_write_to_stream (wrapper, CAMEL_STREAM (filtered_stream));
+ camel_stream_flush (CAMEL_STREAM (filtered_stream));
camel_object_unref (CAMEL_OBJECT (filtered_stream));
camel_stream_reset (stream);
@@ -390,6 +414,9 @@ camel_pgp_mime_part_verify (CamelPgpContext *context, CamelMimePart *mime_part,
/* verify */
valid = camel_pgp_verify (context, stream, sigstream, ex);
+ printf ("attempted to verify data:\n----- BEGIN SIGNED PART -----\n%.*s----- END SIGNED PART -----\n",
+ CAMEL_STREAM_MEM (stream)->buffer->len, CAMEL_STREAM_MEM (stream)->buffer->data);
+
camel_object_unref (CAMEL_OBJECT (sigstream));
camel_object_unref (CAMEL_OBJECT (stream));
diff --git a/camel/camel-types.h b/camel/camel-types.h
index 86da09cae4..292358a1d9 100644
--- a/camel/camel-types.h
+++ b/camel/camel-types.h
@@ -45,6 +45,7 @@ typedef struct _CamelMimeFilter CamelMimeFilter;
typedef struct _CamelMimeFilterBasic CamelMimeFilterBasic;
typedef struct _CamelMimeFilterBestenc CamelMimeFilterBestenc;
typedef struct _CamelMimeFilterCharset CamelMimeFilterCharset;
+typedef struct _CamelMimeFilterChomp CamelMimeFilterChomp;
typedef struct _CamelMimeFilterIndex CamelMimeFilterIndex;
typedef struct _CamelMimeFilterLinewrap CamelMimeFilterLinewrap;
typedef struct _CamelMimeFilterSave CamelMimeFilterSave;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 17:22:13 +0800