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return peerstate->gossip_key;
}
/*******************************************************************************
* Change state
******************************************************************************/
int dc_apeerstate_init_from_header(dc_apeerstate_t* peerstate, const dc_aheader_t* header, time_t message_time)
{
if (peerstate==NULL || header==NULL) {
return 0;
}
dc_apeerstate_empty(peerstate);
peerstate->addr = dc_strdup(header->addr);
peerstate->last_seen = message_time;
peerstate->last_seen_autocrypt = message_time;
peerstate->to_save |= DC_SAVE_ALL;
peerstate->prefer_encrypt = header->prefer_encrypt;
peerstate->public_key = dc_key_new();
dc_key_set_from_key(peerstate->public_key, header->public_key);
dc_apeerstate_recalc_fingerprint(peerstate);
return 1;
}
int dc_apeerstate_init_from_gossip(dc_apeerstate_t* peerstate, const dc_aheader_t* gossip_header, time_t message_time)
{
if (peerstate==NULL || gossip_header==NULL) {
return 0;
}
dc_apeerstate_empty(peerstate);
peerstate->addr = dc_strdup(gossip_header->addr);
peerstate->gossip_timestamp = message_time;
peerstate->to_save |= DC_SAVE_ALL;
peerstate->gossip_key = dc_key_new();
dc_key_set_from_key(peerstate->gossip_key, gossip_header->public_key);
dc_apeerstate_recalc_fingerprint(peerstate);
return 1;
}
int dc_apeerstate_degrade_encryption(dc_apeerstate_t* peerstate, time_t message_time)
{
if (peerstate==NULL) {
return 0;
}
if (peerstate->prefer_encrypt==DC_PE_MUTUAL) {
peerstate->degrade_event |= DC_DE_ENCRYPTION_PAUSED;
}
peerstate->prefer_encrypt = DC_PE_RESET;
peerstate->last_seen = message_time; /*last_seen_autocrypt is not updated as there was not Autocrypt:-header seen*/
peerstate->to_save |= DC_SAVE_ALL;
return 1;
}
void dc_apeerstate_apply_header(dc_apeerstate_t* peerstate, const dc_aheader_t* header, time_t message_time)
{
if (peerstate==NULL || header==NULL
|| peerstate->addr==NULL
|| header->addr==NULL || header->public_key->binary==NULL
|| strcasecmp(peerstate->addr, header->addr)!=0) {
return;
}
if (message_time > peerstate->last_seen_autocrypt)
{
peerstate->last_seen = message_time;
peerstate->last_seen_autocrypt = message_time;
peerstate->to_save |= DC_SAVE_TIMESTAMPS;
if ((header->prefer_encrypt==DC_PE_MUTUAL || header->prefer_encrypt==DC_PE_NOPREFERENCE) /*this also switches from DC_PE_RESET to DC_PE_NOPREFERENCE, which is just fine as the function is only called _if_ the Autocrypt:-header is preset at all */
&& header->prefer_encrypt!=peerstate->prefer_encrypt)
{
if (peerstate->prefer_encrypt==DC_PE_MUTUAL && header->prefer_encrypt!=DC_PE_MUTUAL) {
peerstate->degrade_event |= DC_DE_ENCRYPTION_PAUSED;
}
peerstate->prefer_encrypt = header->prefer_encrypt;
peerstate->to_save |= DC_SAVE_ALL;
}
if (peerstate->public_key==NULL) {
peerstate->public_key = dc_key_new();
}
if (!dc_key_equals(peerstate->public_key, header->public_key))
{