aboutsummaryrefslogtreecommitdiffstats
path: root/camel/camel-pgp-mime.c
diff options
context:
space:
mode:
authorJeffrey Stedfast <fejj@ximian.com>2002-06-27 06:15:24 +0800
committerJeffrey Stedfast <fejj@src.gnome.org>2002-06-27 06:15:24 +0800
commitecb477e338d306cf8736bf986ae55c31589e2a9d (patch)
tree08e5cf4217d5657fe50fdff6e3708578c7ca9e91 /camel/camel-pgp-mime.c
parenta34d5f778d6c1ed34adae4c031d3c605fc6ba978 (diff)
downloadgsoc2013-evolution-ecb477e338d306cf8736bf986ae55c31589e2a9d.tar.gz
gsoc2013-evolution-ecb477e338d306cf8736bf986ae55c31589e2a9d.tar.zst
gsoc2013-evolution-ecb477e338d306cf8736bf986ae55c31589e2a9d.zip
Removed.
2002-06-26 Jeffrey Stedfast <fejj@ximian.com> * camel-pgp-context.[c,h]: Removed. * camel-pgp-mime.c (pgp_mime_part_sign_restore_part): Removed. (pgp_mime_part_sign_prepare_part): Removed. (camel_pgp_mime_part_sign): Removed. (camel_pgp_mime_part_verify): Removed. (camel_pgp_mime_part_encrypt): Removed. (camel_pgp_mime_part_decrypt): Removed. (camel_pgp_mime_is_rfc2015_signed): Documented. (camel_pgp_mime_is_rfc2015_encrypted): Same. svn path=/trunk/; revision=17303
Diffstat (limited to 'camel/camel-pgp-mime.c')
-rw-r--r--camel/camel-pgp-mime.c504
1 files changed, 25 insertions, 479 deletions
diff --git a/camel/camel-pgp-mime.c b/camel/camel-pgp-mime.c
index 51b3d91994..f9d0ea80a9 100644
--- a/camel/camel-pgp-mime.c
+++ b/camel/camel-pgp-mime.c
@@ -25,28 +25,24 @@
#include <config.h>
#endif
-#include "camel-pgp-mime.h"
-#include "camel-mime-message.h"
-#include "camel-mime-filter-from.h"
-#include "camel-mime-filter-bestenc.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-null.h"
-#include "camel-stream-mem.h"
-#include "camel-stream-fs.h"
-
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#define PGPMIME_DEBUG
-
-#define d(x) x
+#include "camel-pgp-mime.h"
+#include "camel-mime-message.h"
-/** rfc2015/rfc3156 stuff (aka PGP/MIME) *******************************/
+/**
+ * camel_pgp_mime_is_rfc2015_signed:
+ * @mime_part: MIME part
+ *
+ * Checks that this part is a multipart/signed part following the
+ * rfc2015 and/or rfc3156 PGP/MIME specifications.
+ *
+ * Returns %TRUE if this looks to be a valid PGP/MIME multipart/signed
+ * part or %FALSE otherwise.
+ **/
gboolean
camel_pgp_mime_is_rfc2015_signed (CamelMimePart *mime_part)
{
@@ -63,7 +59,7 @@ camel_pgp_mime_is_rfc2015_signed (CamelMimePart *mime_part)
type = camel_mime_part_get_content_type (mime_part);
if (!header_content_type_is (type, "multipart", "signed"))
return FALSE;
-
+
#ifdef ENABLE_PEDANTIC_PGPMIME
/* check that we have a protocol param with the value: "application/pgp-signature" */
param = header_content_type_param (type, "protocol");
@@ -99,6 +95,17 @@ camel_pgp_mime_is_rfc2015_signed (CamelMimePart *mime_part)
return TRUE;
}
+
+/**
+ * camel_pgp_mime_is_rfc2015_encrypted:
+ * @mime_part: MIME part
+ *
+ * Checks that this part is a multipart/encrypted part following the
+ * rfc2015 and/or rfc3156 PGP/MIME specifications.
+ *
+ * Returns %TRUE if this looks to be a valid PGP/MIME
+ * multipart/encrypted part or %FALSE otherwise.
+ **/
gboolean
camel_pgp_mime_is_rfc2015_encrypted (CamelMimePart *mime_part)
{
@@ -115,7 +122,7 @@ camel_pgp_mime_is_rfc2015_encrypted (CamelMimePart *mime_part)
type = camel_mime_part_get_content_type (mime_part);
if (!header_content_type_is (type, "multipart", "encrypted"))
return FALSE;
-
+
#ifdef ENABLE_PEDANTIC_PGPMIME
/* check that we have a protocol param with the value: "application/pgp-encrypted" */
param = header_content_type_param (type, "protocol");
@@ -145,464 +152,3 @@ camel_pgp_mime_is_rfc2015_encrypted (CamelMimePart *mime_part)
return TRUE;
}
-
-
-static void
-pgp_mime_part_sign_restore_part (CamelMimePart *mime_part, GSList **encodings)
-{
- CamelDataWrapper *wrapper;
-
- wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));
- if (!wrapper)
- return;
-
- if (CAMEL_IS_MULTIPART (wrapper)) {
- int parts, i;
-
- parts = camel_multipart_get_number (CAMEL_MULTIPART (wrapper));
- for (i = 0; i < parts; i++) {
- CamelMimePart *part = camel_multipart_get_part (CAMEL_MULTIPART (wrapper), i);
-
- pgp_mime_part_sign_restore_part (part, encodings);
- }
- } else {
- CamelMimePartEncodingType encoding;
-
- if (CAMEL_IS_MIME_MESSAGE (wrapper)) {
- /* restore the message parts' subparts */
- pgp_mime_part_sign_restore_part (CAMEL_MIME_PART (wrapper), encodings);
- } else {
- encoding = GPOINTER_TO_INT ((*encodings)->data);
-
- camel_mime_part_set_encoding (mime_part, encoding);
-
- *encodings = (*encodings)->next;
- }
- }
-}
-
-static void
-pgp_mime_part_sign_prepare_part (CamelMimePart *mime_part, GSList **encodings)
-{
- CamelDataWrapper *wrapper;
- int parts, i;
-
- wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));
- if (!wrapper)
- return;
-
- if (CAMEL_IS_MULTIPART (wrapper)) {
- parts = camel_multipart_get_number (CAMEL_MULTIPART (wrapper));
- for (i = 0; i < parts; i++) {
- CamelMimePart *part = camel_multipart_get_part (CAMEL_MULTIPART (wrapper), i);
-
- pgp_mime_part_sign_prepare_part (part, encodings);
- }
- } else {
- CamelMimePartEncodingType encoding, best;
- CamelStream *stream, *filtered_stream;
- CamelMimeFilterBestenc *bestenc;
- guint32 flags;
-
- if (CAMEL_IS_MIME_MESSAGE (wrapper)) {
- /* prepare the message parts' subparts */
- pgp_mime_part_sign_prepare_part (CAMEL_MIME_PART (wrapper), encodings);
- } else {
- encoding = camel_mime_part_get_encoding (mime_part);
-
- if (encoding != CAMEL_MIME_PART_ENCODING_BASE64) {
- flags = CAMEL_BESTENC_GET_ENCODING;
-
- stream = camel_stream_null_new ();
- filtered_stream = (CamelStream *) camel_stream_filter_new_with_stream (stream);
- camel_object_unref (CAMEL_OBJECT (stream));
- bestenc = camel_mime_filter_bestenc_new (flags);
- camel_stream_filter_add (CAMEL_STREAM_FILTER (filtered_stream),
- CAMEL_MIME_FILTER (bestenc));
-
- camel_data_wrapper_write_to_stream (wrapper, filtered_stream);
-
- best = camel_mime_filter_bestenc_get_best_encoding (bestenc, CAMEL_BESTENC_7BIT);
-
- camel_object_unref (CAMEL_OBJECT (filtered_stream));
- camel_object_unref (CAMEL_OBJECT (bestenc));
-
- if (encoding != best) {
- camel_mime_part_set_encoding (mime_part, best);
-
- *encodings = g_slist_append (*encodings, GINT_TO_POINTER (encoding));
- }
- }
- }
- }
-}
-
-
-/**
- * camel_pgp_mime_part_sign:
- * @cipher: PGP Cipher Context
- * @mime_part: a MIME part that will be replaced by a pgp signed part
- * @userid: userid to sign with
- * @hash: one of CAMEL_PGP_HASH_TYPE_MD5 or CAMEL_PGP_HASH_TYPE_SHA1
- * @ex: exception which will be set if there are any errors.
- *
- * Constructs a PGP/MIME multipart in compliance with rfc2015 and
- * replaces @part with the generated multipart/signed. On failure,
- * @ex will be set and #part will remain untouched.
- **/
-void
-camel_pgp_mime_part_sign (CamelCipherContext *cipher, CamelMimePart **mime_part, const char *userid,
- CamelCipherHash hash, CamelException *ex)
-{
- CamelMimePart *part, *signed_part;
- CamelMultipart *multipart;
- CamelContentType *mime_type;
- CamelStreamFilter *filtered_stream;
- CamelMimeFilter *crlf_filter, *from_filter, *chomp_filter;
- CamelStream *stream, *sigstream;
- GSList *encodings = NULL;
- char *hash_type = NULL;
-
- g_return_if_fail (*mime_part != NULL);
- g_return_if_fail (CAMEL_IS_MIME_PART (*mime_part));
- g_return_if_fail (userid != NULL);
-
- part = *mime_part;
-
- /* Prepare all the parts for signing... */
- pgp_mime_part_sign_prepare_part (part, &encodings);
-
- /* 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);
- camel_stream_filter_add (filtered_stream, CAMEL_MIME_FILTER (crlf_filter));
- camel_object_unref (CAMEL_OBJECT (crlf_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);
-
- d(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;
- case CAMEL_CIPHER_HASH_SHA1:
- hash_type = "pgp-sha1";
- break;
- case CAMEL_CIPHER_HASH_RIPEMD160:
- hash_type = "pgp-ripemd160";
- break;
- default:
- /* set a reasonable default */
- hash = CAMEL_CIPHER_HASH_SHA1;
- hash_type = "pgp-sha1";
- break;
- }
-
- /* get the signature */
- if (camel_cipher_sign (cipher, userid, hash, stream, sigstream, ex) == -1) {
- GSList *list;
-
- camel_object_unref (CAMEL_OBJECT (stream));
- camel_object_unref (CAMEL_OBJECT (sigstream));
-
- /* restore the original encoding */
- list = encodings;
- pgp_mime_part_sign_restore_part (part, &list);
- g_slist_free (encodings);
- return;
- }
-
- camel_object_unref (CAMEL_OBJECT (stream));
- camel_stream_reset (sigstream);
-
- /* we don't need these anymore... */
- g_slist_free (encodings);
-
- /* construct the pgp-signature mime part */
- signed_part = camel_mime_part_new ();
- camel_mime_part_set_content (signed_part, CAMEL_STREAM_MEM (sigstream)->buffer->data,
- CAMEL_STREAM_MEM (sigstream)->buffer->len,
- "application/pgp-signature; name=signature.asc");
- camel_mime_part_set_description (signed_part, _("This is a digitally signed message part"));
- camel_object_unref (CAMEL_OBJECT (sigstream));
-
- /* construct the container multipart/signed */
- multipart = camel_multipart_new ();
-
- mime_type = header_content_type_new ("multipart", "signed");
- header_content_type_set_param (mime_type, "micalg", hash_type);
- header_content_type_set_param (mime_type, "protocol", "application/pgp-signature");
- camel_data_wrapper_set_mime_type_field (CAMEL_DATA_WRAPPER (multipart), mime_type);
- header_content_type_unref (mime_type);
-
- camel_multipart_set_boundary (multipart, NULL);
-
- /* add the parts to the multipart */
- camel_multipart_add_part (multipart, part);
- camel_object_unref (CAMEL_OBJECT (part));
- camel_multipart_add_part (multipart, signed_part);
- camel_object_unref (CAMEL_OBJECT (signed_part));
-
- /* replace the input part with the output part */
- *mime_part = camel_mime_part_new ();
- camel_medium_set_content_object (CAMEL_MEDIUM (*mime_part),
- CAMEL_DATA_WRAPPER (multipart));
- camel_object_unref (CAMEL_OBJECT (multipart));
-}
-
-
-/**
- * camel_pgp_mime_part_verify:
- * @cipher: PGP Cipher Context
- * @mime_part: a multipart/signed MIME Part
- * @ex: exception
- *
- * Returns a CamelCipherValidity on success or NULL on fail.
- **/
-CamelCipherValidity *
-camel_pgp_mime_part_verify (CamelCipherContext *cipher, CamelMimePart *mime_part, CamelException *ex)
-{
- CamelDataWrapper *wrapper;
- CamelMultipart *multipart;
- CamelMimePart *part, *sigpart;
- CamelStreamFilter *filtered_stream;
- CamelMimeFilter *crlf_filter, *chomp_filter;
- CamelStream *stream, *sigstream;
- CamelCipherValidity *valid;
-
- g_return_val_if_fail (mime_part != NULL, NULL);
- g_return_val_if_fail (CAMEL_IS_MIME_PART (mime_part), NULL);
-
- if (!camel_pgp_mime_is_rfc2015_signed (mime_part))
- return NULL;
-
- wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));
- multipart = CAMEL_MULTIPART (wrapper);
-
- /* 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);
- camel_stream_filter_add (filtered_stream, CAMEL_MIME_FILTER (crlf_filter));
- camel_object_unref (CAMEL_OBJECT (crlf_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);
-
- /* get the signed part */
- sigpart = camel_multipart_get_part (multipart, 1);
- sigstream = camel_stream_mem_new ();
- camel_data_wrapper_write_to_stream (camel_medium_get_content_object (CAMEL_MEDIUM (sigpart)),
- sigstream);
- camel_stream_reset (sigstream);
-
- /* verify */
- valid = camel_cipher_verify (cipher, CAMEL_CIPHER_HASH_DEFAULT, stream, sigstream, ex);
-
- d(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));
-
- return valid;
-}
-
-
-/**
- * camel_pgp_mime_part_encrypt:
- * @cipher: PGP Cipher Context
- * @mime_part: a MIME part that will be replaced by a pgp encrypted part
- * @recipients: list of recipient PGP Key IDs
- * @ex: exception which will be set if there are any errors.
- *
- * Constructs a PGP/MIME multipart in compliance with rfc2015 and
- * replaces #mime_part with the generated multipart/signed. On failure,
- * #ex will be set and #part will remain untouched.
- **/
-void
-camel_pgp_mime_part_encrypt (CamelCipherContext *cipher, CamelMimePart **mime_part,
- GPtrArray *recipients, CamelException *ex)
-{
- CamelMultipart *multipart;
- CamelMimePart *part, *version_part, *encrypted_part;
- CamelContentType *mime_type;
- CamelStreamFilter *filtered_stream;
- CamelMimeFilter *crlf_filter;
- CamelStream *stream, *ciphertext;
-
- g_return_if_fail (*mime_part != NULL);
- g_return_if_fail (CAMEL_IS_MIME_PART (*mime_part));
- g_return_if_fail (recipients != NULL);
-
- part = *mime_part;
-
- /* get the contents */
- stream = camel_stream_mem_new ();
- crlf_filter = camel_mime_filter_crlf_new (CAMEL_MIME_FILTER_CRLF_ENCODE,
- CAMEL_MIME_FILTER_CRLF_MODE_CRLF_ONLY);
- 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_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));
- camel_stream_reset (stream);
-
- /* pgp encrypt */
- ciphertext = camel_stream_mem_new ();
- if (camel_cipher_encrypt (cipher, FALSE, NULL, recipients, stream, ciphertext, ex) == -1) {
- camel_object_unref (CAMEL_OBJECT (stream));
- camel_object_unref (CAMEL_OBJECT (ciphertext));
- return;
- }
-
- camel_object_unref (CAMEL_OBJECT (stream));
- camel_stream_reset (ciphertext);
-
- /* construct the version part */
- version_part = camel_mime_part_new ();
- camel_mime_part_set_encoding (version_part, CAMEL_MIME_PART_ENCODING_7BIT);
- camel_mime_part_set_content (version_part, "Version: 1", strlen ("Version: 1"),
- "application/pgp-encrypted");
-
- /* construct the pgp-encrypted mime part */
- encrypted_part = camel_mime_part_new ();
- camel_mime_part_set_content (encrypted_part, CAMEL_STREAM_MEM (ciphertext)->buffer->data,
- CAMEL_STREAM_MEM (ciphertext)->buffer->len,
- "application/octet-stream; name=encrypted.asc");
- camel_object_unref (CAMEL_OBJECT (ciphertext));
- camel_mime_part_set_encoding (encrypted_part, CAMEL_MIME_PART_ENCODING_7BIT);
-
- /* construct the container multipart/encrypted */
- multipart = camel_multipart_new ();
-
- mime_type = header_content_type_new ("multipart", "encrypted");
- header_content_type_set_param (mime_type, "protocol", "application/pgp-encrypted");
- camel_data_wrapper_set_mime_type_field (CAMEL_DATA_WRAPPER (multipart), mime_type);
- header_content_type_unref (mime_type);
-
- camel_multipart_set_boundary (multipart, NULL);
-
- /* add the parts to the multipart */
- camel_multipart_add_part (multipart, version_part);
- camel_object_unref (CAMEL_OBJECT (version_part));
- camel_multipart_add_part (multipart, encrypted_part);
- camel_object_unref (CAMEL_OBJECT (encrypted_part));
-
- /* replace the input part with the output part */
- camel_object_unref (CAMEL_OBJECT (*mime_part));
- *mime_part = camel_mime_part_new ();
- camel_medium_set_content_object (CAMEL_MEDIUM (*mime_part),
- CAMEL_DATA_WRAPPER (multipart));
- camel_object_unref (CAMEL_OBJECT (multipart));
-}
-
-
-/**
- * camel_pgp_mime_part_decrypt:
- * @cipher: PGP Cipher Context
- * @mime_part: a multipart/encrypted MIME Part
- * @ex: exception
- *
- * Returns the decrypted MIME Part on success or NULL on fail.
- **/
-CamelMimePart *
-camel_pgp_mime_part_decrypt (CamelCipherContext *cipher, CamelMimePart *mime_part, CamelException *ex)
-{
- CamelDataWrapper *wrapper;
- CamelMultipart *multipart;
- CamelMimePart *encrypted_part, *part;
- CamelContentType *mime_type;
- CamelStream *stream, *ciphertext;
- CamelStreamFilter *filtered_stream;
- CamelMimeFilter *crlf_filter;
-
- g_return_val_if_fail (mime_part != NULL, NULL);
- g_return_val_if_fail (CAMEL_IS_MIME_PART (mime_part), NULL);
-
- /* make sure the mime part is a multipart/encrypted */
- if (!camel_pgp_mime_is_rfc2015_encrypted (mime_part))
- return NULL;
-
- wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));
- multipart = CAMEL_MULTIPART (wrapper);
-
- /* get the encrypted part (second part) */
- encrypted_part = camel_multipart_get_part (multipart, 1 /* second part starting at 0 */);
- mime_type = camel_mime_part_get_content_type (encrypted_part);
- if (!header_content_type_is (mime_type, "application", "octet-stream"))
- return NULL;
-
- /* get the ciphertext */
- ciphertext = camel_stream_mem_new ();
- camel_data_wrapper_write_to_stream (CAMEL_DATA_WRAPPER (encrypted_part), ciphertext);
- camel_stream_reset (ciphertext);
-
- /* get the cleartext */
- stream = camel_stream_mem_new ();
- if (camel_cipher_decrypt (cipher, ciphertext, stream, ex) == -1) {
- camel_object_unref (CAMEL_OBJECT (ciphertext));
- camel_object_unref (CAMEL_OBJECT (stream));
- return NULL;
- }
-
- camel_object_unref (CAMEL_OBJECT (ciphertext));
- camel_stream_reset (stream);
-
- /* construct the new decrypted mime part from the stream */
- part = camel_mime_part_new ();
-
- crlf_filter = camel_mime_filter_crlf_new (CAMEL_MIME_FILTER_CRLF_DECODE,
- CAMEL_MIME_FILTER_CRLF_MODE_CRLF_ONLY);
- filtered_stream = camel_stream_filter_new_with_stream (stream);
- camel_object_unref (CAMEL_OBJECT (stream));
- camel_stream_filter_add (filtered_stream, CAMEL_MIME_FILTER (crlf_filter));
- camel_object_unref (CAMEL_OBJECT (crlf_filter));
-
- camel_data_wrapper_construct_from_stream (CAMEL_DATA_WRAPPER (part), CAMEL_STREAM (filtered_stream));
-
- camel_object_unref (CAMEL_OBJECT (filtered_stream));
-
- return part;
-}