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RRTcodebaseC

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}
return mime;
// free_mime:
//mailmime_free(mime);
goto err;
free_mime_fields:
mailmime_fields_free(mime_fields);
mailmime_content_free(content);
goto err;
free_content:
if (encoding!=NULL)
mailmime_mechanism_free(encoding);
if (content!=NULL)
mailmime_content_free(content);
err:
return NULL;
}
/**
* Check if a MIME structure contains a multipart/report part.
*
* As reports are often unencrypted, we do not reset the Autocrypt header in
* this case.
*
* However, Delta Chat itself has no problem with encrypted multipart/report
* parts and MUAs should be encouraged to encrpyt multipart/reports as well so
* that we could use the normal Autocrypt processing.
*
* @private
* @param mime The mime struture to check
* @return 1=multipart/report found in MIME, 0=no multipart/report found
*/
static int contains_report(struct mailmime* mime)
{
if (mime->mm_type==MAILMIME_MULTIPLE)
{
if (mime->mm_content_type->ct_type->tp_type==MAILMIME_TYPE_COMPOSITE_TYPE
&& mime->mm_content_type->ct_type->tp_data.tp_composite_type->ct_type==MAILMIME_COMPOSITE_TYPE_MULTIPART
&& strcmp(mime->mm_content_type->ct_subtype, "report")==0) {
return 1;
}
clistiter* cur;
for (cur=clist_begin(mime->mm_data.mm_multipart.mm_mp_list); cur!=NULL; cur=clist_next(cur)) {
if (contains_report((struct mailmime*)clist_content(cur))) {
return 1;
}
}
}
else if (mime->mm_type==MAILMIME_MESSAGE)
{
if (contains_report(mime->mm_data.mm_message.mm_msg_mime)) {
return 1;
}
}
return 0;
}
/*******************************************************************************
* Generate Keypairs
******************************************************************************/
static int load_or_generate_self_public_key(dc_context_t* context, dc_key_t* public_key, const char* self_addr,
struct mailmime* random_data_mime /*for an extra-seed of the random generator. For speed reasons, only give _available_ pointers here, do not create any data - in very most cases, the key is not generated!*/)
{
static int s_in_key_creation = 0; /* avoid double creation (we unlock the database during creation) */
int key_created = 0;
int success = 0, key_creation_here = 0;
if (context==NULL || context->magic!=DC_CONTEXT_MAGIC || public_key==NULL) {
goto cleanup;
}
if (!dc_key_load_self_public(public_key, self_addr, context->sql))
{
/* create the keypair - this may take a moment, however, as this is in a thread, this is no big deal */
if (s_in_key_creation) { goto cleanup; }
key_creation_here = 1;
s_in_key_creation = 1;
/* seed the random generator */
{
uintptr_t seed[4];
seed[0] = (uintptr_t)time(NULL); /* time */
seed[1] = (uintptr_t)seed; /* stack */
seed[2] = (uintptr_t)public_key; /* heap */
seed[3] = (uintptr_t)pthread_self(); /* thread ID */
dc_pgp_rand_seed(context, seed, sizeof(seed));
if (random_data_mime) {
MMAPString* random_data_mmap = NULL;
int col = 0;
if ((random_data_mmap=mmap_string_new(""))==NULL) {
goto cleanup;
}