static char *
save_attachment (CamelMimePart * part, const char *uid,
const char *attachment_store)
{
CamelDataWrapper *content;
CamelStream *stream = NULL;
CamelStreamFs *stream_fs;
char *attach_file = NULL;
char *file_url = NULL;
const char *mime_filename;
content = camel_medium_get_content_object (CAMEL_MEDIUM (part));
mime_filename = camel_mime_part_get_filename (part);
attach_file = g_strdup_printf ("%s/%s-%s",
attachment_store, uid, mime_filename);
stream = camel_stream_fs_new_with_name (attach_file,
O_RDWR | O_CREAT | O_TRUNC, 0600);
if (stream == NULL)
goto end;
stream_fs = (CamelStreamFs *) stream;
camel_data_wrapper_decode_to_stream (content, stream);
file_url = g_strdup_printf ("file://%s", attach_file);
end:
g_free (attach_file);
camel_object_unref (stream);
return file_url;
}
/**
*
* "util_get_msg_body" is based on mail-to-task eplugin's get_description function.
* which is GPL licensed.
* */
static gchar *
util_get_msg_body(CamelMimeMessage *message, gchar **text) {
CamelDataWrapper *content;
CamelStream *mem;
CamelContentType *type;
CamelMimePart *mime_part = CAMEL_MIME_PART(message);
GSList sl;
gchar *str, *convert_str = NULL;
gsize bytes_read, bytes_written;
gint count = 2;
content = camel_medium_get_content_object((CamelMedium *) message);
if (!content)
return;
/*
* Get non-multipart content from multipart message.
*/
while (CAMEL_IS_MULTIPART(content) && count > 0) {
mime_part = camel_multipart_get_part(CAMEL_MULTIPART(content), 0);
content = camel_medium_get_content_object(CAMEL_MEDIUM(mime_part));
count--;
}
if (!mime_part)
return;
type = camel_mime_part_get_content_type(mime_part);
if (!camel_content_type_is(type, "text", "plain"))
return;
mem = camel_stream_mem_new();
camel_data_wrapper_decode_to_stream(content, mem);
str = g_strndup((const gchar *) ((CamelStreamMem *) mem)->buffer->data, ((CamelStreamMem *) mem)->buffer->len);
camel_object_unref(mem);
/* convert to UTF-8 string */
if (str && content->mime_type->params && content->mime_type->params->value) {
convert_str = g_convert(str, strlen(str),
"UTF-8", content->mime_type->params->value,
&bytes_read, &bytes_written, NULL);
}
if (convert_str)
*text = convert_str;
else
*text = str;
/*g_free (str);
if (convert_str)
g_free (convert_str);
*/
}
static gboolean
set_ical_from_mime_part (CamelMimePart * part, ScalixObject * object)
{
CamelDataWrapper *content;
CamelStream *stream;
GByteArray *data;
icalcomponent *icomp = NULL;
icalcomponent *subcomp = NULL;
ScalixAppointmentPrivate *priv;
priv = SCALIX_APPOINTMENT_GET_PRIVATE (SCALIX_APPOINTMENT (object));
content = camel_medium_get_content_object (CAMEL_MEDIUM (part));
data = g_byte_array_new ();
stream = camel_stream_mem_new_with_byte_array (data);
camel_data_wrapper_decode_to_stream (content, stream);
if (data == NULL || data->data == NULL) {
g_print ("Found corrupt ical data\n");
return FALSE;
}
icomp = icalparser_parse_string ((const char *) data->data);
if (icalcomponent_isa (icomp) != ICAL_VCALENDAR_COMPONENT) {
icalcomponent_free (icomp);
return FALSE;
}
/* Grab the timezone if any */
subcomp = icalcomponent_get_first_component (icomp,
ICAL_VTIMEZONE_COMPONENT);
if (subcomp != NULL) {
icaltimezone *zone;
zone = icaltimezone_new ();
icaltimezone_set_component (zone, subcomp);
priv->timezone = zone;
}
/* Grab the main VEVENT */
subcomp = icalcomponent_get_first_component (icomp, ICAL_VEVENT_COMPONENT);
e_cal_component_set_icalcomponent (E_CAL_COMPONENT (object), subcomp);
return TRUE;
}
static CamelCipherValidity *
sm_decrypt(CamelCipherContext *context, CamelMimePart *ipart, CamelMimePart *opart, CamelException *ex)
{
NSSCMSDecoderContext *dec;
NSSCMSMessage *cmsg;
CamelStreamMem *istream;
CamelStream *ostream;
CamelCipherValidity *valid = NULL;
/* FIXME: This assumes the content is only encrypted. Perhaps its ok for
this api to do this ... */
ostream = camel_stream_mem_new();
camel_stream_mem_set_secure((CamelStreamMem *)ostream);
/* FIXME: stream this to the decoder incrementally */
istream = (CamelStreamMem *)camel_stream_mem_new();
camel_data_wrapper_decode_to_stream(camel_medium_get_content_object((CamelMedium *)ipart), (CamelStream *)istream);
camel_stream_reset((CamelStream *)istream);
dec = NSS_CMSDecoder_Start(NULL,
sm_write_stream, ostream, /* content callback */
NULL, NULL,
NULL, NULL); /* decrypt key callback */
if (NSS_CMSDecoder_Update(dec, (char *) istream->buffer->data, istream->buffer->len) != SECSuccess) {
printf("decoder update failed\n");
}
camel_object_unref(istream);
cmsg = NSS_CMSDecoder_Finish(dec);
if (cmsg == NULL) {
camel_exception_setv(ex, CAMEL_EXCEPTION_SYSTEM, _("Decoder failed, error %d"), PORT_GetError());
goto fail;
}
#if 0
/* not sure if we really care about this? */
if (!NSS_CMSMessage_IsEncrypted(cmsg)) {
camel_exception_set (ex, CAMEL_EXCEPTION_SYSTEM, _("S/MIME Decrypt: No encrypted content found"));
NSS_CMSMessage_Destroy(cmsg);
goto fail;
}
#endif
camel_stream_reset(ostream);
camel_data_wrapper_construct_from_stream((CamelDataWrapper *)opart, ostream);
if (NSS_CMSMessage_IsSigned(cmsg)) {
valid = sm_verify_cmsg(context, cmsg, NULL, ex);
} else {
valid = camel_cipher_validity_new();
valid->encrypt.description = g_strdup(_("Encrypted content"));
valid->encrypt.status = CAMEL_CIPHER_VALIDITY_ENCRYPT_ENCRYPTED;
}
NSS_CMSMessage_Destroy(cmsg);
fail:
camel_object_unref(ostream);
return valid;
}
static CamelCipherValidity *
sm_verify(CamelCipherContext *context, CamelMimePart *ipart, CamelException *ex)
{
NSSCMSDecoderContext *dec;
NSSCMSMessage *cmsg;
CamelStreamMem *mem;
CamelStream *constream = NULL;
CamelCipherValidity *valid = NULL;
CamelContentType *ct;
const char *tmp;
CamelMimePart *sigpart;
CamelDataWrapper *dw;
dw = camel_medium_get_content_object((CamelMedium *)ipart);
ct = dw->mime_type;
/* FIXME: we should stream this to the decoder */
mem = (CamelStreamMem *)camel_stream_mem_new();
if (camel_content_type_is(ct, "multipart", "signed")) {
CamelMultipart *mps = (CamelMultipart *)dw;
tmp = camel_content_type_param(ct, "protocol");
if (!CAMEL_IS_MULTIPART_SIGNED(mps)
|| tmp == NULL
|| (g_ascii_strcasecmp(tmp, context->sign_protocol) != 0
&& g_ascii_strcasecmp(tmp, "application/pkcs7-signature") != 0)) {
camel_exception_set (ex, CAMEL_EXCEPTION_SYSTEM,
_("Cannot verify message signature: Incorrect message format"));
goto fail;
}
constream = camel_multipart_signed_get_content_stream((CamelMultipartSigned *)mps, ex);
if (constream == NULL)
goto fail;
sigpart = camel_multipart_get_part(mps, CAMEL_MULTIPART_SIGNED_SIGNATURE);
if (sigpart == NULL) {
camel_exception_set (ex, CAMEL_EXCEPTION_SYSTEM,
_("Cannot verify message signature: Incorrect message format"));
goto fail;
}
} else if (camel_content_type_is(ct, "application", "x-pkcs7-mime")) {
sigpart = ipart;
} else {
camel_exception_set (ex, CAMEL_EXCEPTION_SYSTEM,
_("Cannot verify message signature: Incorrect message format"));
goto fail;
}
dec = NSS_CMSDecoder_Start(NULL,
NULL, NULL, /* content callback */
NULL, NULL, /* password callback */
NULL, NULL); /* decrypt key callback */
camel_data_wrapper_decode_to_stream(camel_medium_get_content_object((CamelMedium *)sigpart), (CamelStream *)mem);
(void)NSS_CMSDecoder_Update(dec, (char *) mem->buffer->data, mem->buffer->len);
cmsg = NSS_CMSDecoder_Finish(dec);
if (cmsg == NULL) {
camel_exception_set (ex, CAMEL_EXCEPTION_SYSTEM, _("Decoder failed"));
goto fail;
}
valid = sm_verify_cmsg(context, cmsg, constream, ex);
NSS_CMSMessage_Destroy(cmsg);
fail:
camel_object_unref(mem);
if (constream)
camel_object_unref(constream);
return valid;
}
/* TODO: This is suboptimal, but the only other solution is to pass around NSSCMSMessages */
guint32
camel_smime_context_describe_part(CamelSMIMEContext *context, CamelMimePart *part)
{
guint32 flags = 0;
CamelContentType *ct;
const char *tmp;
if (!part)
return flags;
ct = camel_mime_part_get_content_type(part);
if (camel_content_type_is(ct, "multipart", "signed")) {
tmp = camel_content_type_param(ct, "protocol");
if (tmp &&
(g_ascii_strcasecmp(tmp, ((CamelCipherContext *)context)->sign_protocol) == 0
|| g_ascii_strcasecmp(tmp, "application/pkcs7-signature") == 0))
flags = CAMEL_SMIME_SIGNED;
} else if (camel_content_type_is(ct, "application", "x-pkcs7-mime")) {
CamelStreamMem *istream;
NSSCMSMessage *cmsg;
NSSCMSDecoderContext *dec;
/* FIXME: stream this to the decoder incrementally */
istream = (CamelStreamMem *)camel_stream_mem_new();
camel_data_wrapper_decode_to_stream(camel_medium_get_content_object((CamelMedium *)part), (CamelStream *)istream);
camel_stream_reset((CamelStream *)istream);
dec = NSS_CMSDecoder_Start(NULL,
NULL, NULL,
NULL, NULL, /* password callback */
NULL, NULL); /* decrypt key callback */
NSS_CMSDecoder_Update(dec, (char *) istream->buffer->data, istream->buffer->len);
camel_object_unref(istream);
cmsg = NSS_CMSDecoder_Finish(dec);
if (cmsg) {
if (NSS_CMSMessage_IsSigned(cmsg)) {
printf("message is signed\n");
flags |= CAMEL_SMIME_SIGNED;
}
if (NSS_CMSMessage_IsEncrypted(cmsg)) {
printf("message is encrypted\n");
flags |= CAMEL_SMIME_ENCRYPTED;
}
#if 0
if (NSS_CMSMessage_ContainsCertsOrCrls(cmsg)) {
printf("message contains certs or crls\n");
flags |= CAMEL_SMIME_CERTS;
}
#endif
NSS_CMSMessage_Destroy(cmsg);
} else {
printf("Message could not be parsed\n");
}
}
return flags;
}
void
org_gnome_format_tnef(void *ep, EMFormatHookTarget *t)
{
char *tmpdir = NULL, *name = NULL;
CamelStream *out;
struct dirent *d;
DIR *dir;
CamelMultipart *mp;
CamelMimePart *mainpart;
CamelDataWrapper *content;
int len;
TNEFStruct *tnef;
tnef = (TNEFStruct *) g_malloc(sizeof(TNEFStruct));
tmpdir = e_mkdtemp("tnef-attachment-XXXXXX");
if (tmpdir == NULL)
return;
filepath = tmpdir;
name = g_build_filename(tmpdir, ".evo-attachment.tnef", NULL);
out = camel_stream_fs_new_with_name(name, O_RDWR|O_CREAT, 0666);
if (out == NULL)
goto fail;
content = camel_medium_get_content_object((CamelMedium *)t->part);
if (content == NULL)
goto fail;
if (camel_data_wrapper_decode_to_stream(content, out) == -1
|| camel_stream_close(out) == -1) {
camel_object_unref(out);
goto fail;
}
camel_object_unref(out);
/* Extracting the winmail.dat */
TNEFInitialize(tnef);
tnef->Debug = verbose;
if (TNEFParseFile(name, tnef) == -1) {
printf("ERROR processing file\n");
}
processTnef(tnef);
TNEFFree(tnef);
/* Extraction done */
dir = opendir(tmpdir);
if (dir == NULL)
goto fail;
mainpart = camel_mime_part_new();
mp = camel_multipart_new();
camel_data_wrapper_set_mime_type((CamelDataWrapper *)mp, "multipart/mixed");
camel_multipart_set_boundary(mp, NULL);
camel_medium_set_content_object((CamelMedium *)mainpart, (CamelDataWrapper *)mp);
while ((d = readdir(dir))) {
CamelMimePart *part;
CamelDataWrapper *content;
CamelStream *stream;
char *path;
const char *type;
if (!strcmp(d->d_name, ".")
|| !strcmp(d->d_name, "..")
|| !strcmp(d->d_name, ".evo-attachment.tnef"))
continue;
path = g_build_filename(tmpdir, d->d_name, NULL);
stream = camel_stream_fs_new_with_name(path, O_RDONLY, 0);
content = camel_data_wrapper_new();
camel_data_wrapper_construct_from_stream(content, stream);
camel_object_unref(stream);
part = camel_mime_part_new();
camel_mime_part_set_encoding(part, CAMEL_TRANSFER_ENCODING_BINARY);
camel_medium_set_content_object((CamelMedium *)part, content);
camel_object_unref(content);
type = em_utils_snoop_type(part);
if (type)
camel_data_wrapper_set_mime_type((CamelDataWrapper *)part, type);
camel_mime_part_set_filename(part, d->d_name);
g_free(path);
camel_multipart_add_part(mp, part);
}
closedir(dir);
len = t->format->part_id->len;
g_string_append_printf(t->format->part_id, ".tnef");
if (camel_multipart_get_number(mp) > 0)
em_format_part_as(t->format, t->stream, mainpart, "multipart/mixed");
else if (t->item->handler.old)
t->item->handler.old->handler(t->format, t->stream, t->part, t->item->handler.old);
g_string_truncate(t->format->part_id, len);
camel_object_unref(mainpart);
goto ok;
fail:
if (t->item->handler.old)
t->item->handler.old->handler(t->format, t->stream, t->part, t->item->handler.old);
ok:
g_free(name);
g_free(tmpdir);
}
