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

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;
-}