/**
* g_mime_part_set_filename:
* @mime_part: a #GMimePart object
* @filename: the file name
*
* Sets the "filename" parameter on the Content-Disposition and also sets the
* "name" parameter on the Content-Type.
*
* Note: The @filename string should be in UTF-8.
**/
void
g_mime_part_set_filename (GMimePart *mime_part, const char *filename)
{
GMimeObject *object = (GMimeObject *) mime_part;
g_return_if_fail (GMIME_IS_PART (mime_part));
g_mime_object_set_content_disposition_parameter (object, "filename", filename);
g_mime_object_set_content_type_parameter (object, "name", filename);
}
static void
multipart_set_boundary (GMimeMultipart *multipart, const char *boundary)
{
char bbuf[35];
if (!boundary) {
/* Generate a fairly random boundary string. */
unsigned char digest[16], *p;
guint32 save = 0;
int state = 0;
read_random_pool (digest, 16);
strcpy (bbuf, "=-");
p = (unsigned char *) bbuf + 2;
p += g_mime_encoding_base64_encode_step (digest, 16, p, &state, &save);
*p = '\0';
boundary = bbuf;
}
g_mime_object_set_content_type_parameter (GMIME_OBJECT (multipart), "boundary", boundary);
}
gboolean
g_mime_gpgme_mpe_encrypt(GMimeMultipartEncrypted * mpe,
GMimeObject * content, GPtrArray * recipients,
gboolean trust_all, GtkWindow * parent,
GError ** err)
{
GMimeStream *filtered_stream;
GMimeStream *ciphertext;
GMimeStream *stream;
GMimePart *version_part;
GMimePart *encrypted_part;
GMimeDataWrapper *wrapper;
GMimeFilter *crlf_filter;
g_return_val_if_fail(GMIME_IS_MULTIPART_ENCRYPTED(mpe), FALSE);
g_return_val_if_fail(GMIME_IS_OBJECT(content), FALSE);
/* get the cleartext */
stream = g_mime_stream_mem_new();
filtered_stream = g_mime_stream_filter_new(stream);
crlf_filter = g_mime_filter_crlf_new(TRUE, FALSE);
g_mime_stream_filter_add(GMIME_STREAM_FILTER(filtered_stream),
crlf_filter);
g_object_unref(crlf_filter);
g_mime_object_write_to_stream(content, filtered_stream);
g_mime_stream_flush(filtered_stream);
g_object_unref(filtered_stream);
/* reset the content stream */
g_mime_stream_reset(stream);
/* encrypt the content stream */
ciphertext = g_mime_stream_mem_new();
if (!libbalsa_gpgme_encrypt
(recipients, NULL, stream, ciphertext, GPGME_PROTOCOL_OpenPGP,
FALSE, trust_all, parent, err)) {
g_object_unref(ciphertext);
g_object_unref(stream);
return FALSE;
}
g_object_unref(stream);
g_mime_stream_reset(ciphertext);
/* construct the version part */
version_part =
g_mime_part_new_with_type("application", "pgp-encrypted");
g_mime_part_set_content_encoding(version_part,
GMIME_CONTENT_ENCODING_7BIT);
stream =
g_mime_stream_mem_new_with_buffer("Version: 1\n",
strlen("Version: 1\n"));
wrapper =
g_mime_data_wrapper_new_with_stream(stream,
GMIME_CONTENT_ENCODING_7BIT);
g_mime_part_set_content_object(version_part, wrapper);
g_object_unref(wrapper);
g_object_unref(stream);
/* construct the encrypted mime part */
encrypted_part =
g_mime_part_new_with_type("application", "octet-stream");
g_mime_part_set_content_encoding(encrypted_part,
GMIME_CONTENT_ENCODING_7BIT);
wrapper =
g_mime_data_wrapper_new_with_stream(ciphertext,
GMIME_CONTENT_ENCODING_7BIT);
g_mime_part_set_content_object(encrypted_part, wrapper);
g_object_unref(ciphertext);
g_object_unref(wrapper);
/* save the version and encrypted parts */
/* FIXME: make sure there aren't any other parts?? */
g_mime_multipart_add(GMIME_MULTIPART(mpe), GMIME_OBJECT(version_part));
g_mime_multipart_add(GMIME_MULTIPART(mpe),
GMIME_OBJECT(encrypted_part));
g_object_unref(encrypted_part);
g_object_unref(version_part);
/* set the content-type params for this multipart/encrypted part */
g_mime_object_set_content_type_parameter(GMIME_OBJECT(mpe), "protocol",
"application/pgp-encrypted");
g_mime_multipart_set_boundary(GMIME_MULTIPART(mpe), NULL);
return TRUE;
}
