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RRTcodebaseC

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if (sqlite3_column_type(stmt, 0)==SQLITE_NULL) {
dc_log_info(context, 0, "[autocrypt] no peerstate for %s",
sqlite3_column_text(stmt, 1));
can_encrypt = 0;
all_mutual = 0;
}
else {
/* the peerstate exist, so we have either public_key or gossip_key and can encrypt potentially */
int prefer_encrypted = sqlite3_column_int(stmt, 0);
if (prefer_encrypted!=DC_PE_MUTUAL) {
dc_log_info(context, 0, "[autocrypt] peerstate for %s is %s",
sqlite3_column_text(stmt, 1),
prefer_encrypted==DC_PE_NOPREFERENCE? "NOPREFERENCE" : "RESET");
all_mutual = 0;
}
}
}
sqlite3_finalize(stmt);
stmt = NULL;
if (can_encrypt)
{
if (all_mutual) {
do_guarantee_e2ee = 1;
}
else {
if (last_msg_in_chat_encrypted(context->sql, chat->id)) {
do_guarantee_e2ee = 1;
}
}
}
}
if (do_guarantee_e2ee) {
dc_param_set_int(msg->param, DC_PARAM_GUARANTEE_E2EE, 1);
}
dc_param_set(msg->param, DC_PARAM_ERRONEOUS_E2EE, NULL); /* reset eg. on forwarding */
// set "In-Reply-To:" to identify the message to which the composed message is a reply;
// set "References:" to identify the "thread" of the conversation;
// both according to RFC 5322 3.6.4, page 25
//
// as self-talks are mainly used to transfer data between devices,
// we do not set In-Reply-To/References in this case.
if (!dc_chat_is_self_talk(chat)
&& get_parent_mime_headers(chat, &parent_rfc724_mid, &parent_in_reply_to, &parent_references))
{
if (parent_rfc724_mid && parent_rfc724_mid[0]) {
new_in_reply_to = dc_strdup(parent_rfc724_mid);
}
// the whole list of messages referenced may be huge;
// only use the oldest and and the parent message
if (parent_references) {
char* space = NULL;
if ((space=strchr(parent_references, ' '))!=NULL) {
*space = 0;
}
}
if (parent_references && parent_references[0]
&& parent_rfc724_mid && parent_rfc724_mid[0]) {
// angle brackets are added by the mimefactory later
new_references = dc_mprintf("%s %s", parent_references, parent_rfc724_mid);
}
else if (parent_references && parent_references[0]) {
new_references = dc_strdup(parent_references);
}
else if (parent_in_reply_to && parent_in_reply_to[0]
&& parent_rfc724_mid && parent_rfc724_mid[0]) {
new_references = dc_mprintf("%s %s", parent_in_reply_to, parent_rfc724_mid);
}
else if (parent_in_reply_to && parent_in_reply_to[0]) {
new_references = dc_strdup(parent_in_reply_to);
}
}
/* add independent location to database */
if (dc_param_exists(msg->param, DC_PARAM_SET_LATITUDE)) {
stmt = dc_sqlite3_prepare(context->sql,
"INSERT INTO locations "
" (timestamp,from_id,chat_id, latitude,longitude,independent)"
" VALUES (?,?,?, ?,?,1);");
sqlite3_bind_int64 (stmt, 1, timestamp);
sqlite3_bind_int (stmt, 2, DC_CONTACT_ID_SELF);
sqlite3_bind_int (stmt, 3, chat->id);
sqlite3_bind_double(stmt, 4, dc_param_get_float(msg->param, DC_PARAM_SET_LATITUDE, 0.0));
sqlite3_bind_double(stmt, 5, dc_param_get_float(msg->param, DC_PARAM_SET_LONGITUDE, 0.0));
sqlite3_step(stmt);
sqlite3_finalize(stmt);
stmt = NULL;
location_id = dc_sqlite3_get_rowid2(context->sql, "locations",
"timestamp", timestamp,
"from_id", DC_CONTACT_ID_SELF);
}
/* add message to the database */
stmt = dc_sqlite3_prepare(context->sql,