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ircd:Ⓜ️:dbs: Assertions and conditions to avoid writing any self-references.

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This commit is contained in:
Jason Volk 2019-05-07 12:35:58 -07:00
parent d280bcdec3
commit 88bfc74e51
1 changed files with 10 additions and 1 deletions
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11
ircd/m_dbs.cc
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@ -421,6 +421,7 @@ ircd::m::dbs::_index_event_refs_prev(db::txn &txn,
thread_local char buf[EVENT_REFS_KEY_MAX_SIZE];
assert(opts.event_idx != 0 && prev_idx != 0);
assert(opts.event_idx != prev_idx);
const string_view &key
{
event_refs_key(buf, prev_idx, ref::PREV, opts.event_idx)
@ -472,6 +473,7 @@ ircd::m::dbs::_index_event_refs_auth(db::txn &txn,
thread_local char buf[EVENT_REFS_KEY_MAX_SIZE];
assert(opts.event_idx != 0 && auth_idx != 0);
assert(opts.event_idx != auth_idx);
const string_view &key
{
event_refs_key(buf, auth_idx, ref::AUTH, opts.event_idx)
@ -495,6 +497,9 @@ ircd::m::dbs::_index_event_refs_state(db::txn &txn,
assert(opts.event_refs.test(uint(ref::STATE)) ||
opts.event_refs.test(uint(ref::PREV_STATE)));
if(!opts.present)
return;
if(!json::get<"room_id"_>(event))
return;
@ -516,11 +521,12 @@ ircd::m::dbs::_index_event_refs_state(db::txn &txn,
state.get(std::nothrow, at<"type"_>(event), at<"state_key"_>(event)) // query
};
if(!prev_state_idx)
if(!prev_state_idx || prev_state_idx == opts.event_idx)
return;
thread_local char buf[EVENT_REFS_KEY_MAX_SIZE];
assert(opts.event_idx != 0 && prev_state_idx != 0);
assert(opts.event_idx != prev_state_idx);
if(opts.event_refs.test(uint(ref::STATE)))
{
@ -593,6 +599,7 @@ ircd::m::dbs::_index_event_refs_m_receipt_m_read(db::txn &txn,
thread_local char buf[EVENT_REFS_KEY_MAX_SIZE];
assert(opts.event_idx != 0 && event_idx != 0);
assert(opts.event_idx != event_idx);
const string_view &key
{
event_refs_key(buf, event_idx, ref::M_RECEIPT__M_READ, opts.event_idx)
@ -683,6 +690,7 @@ ircd::m::dbs::_index_event_refs_m_relates_m_reply(db::txn &txn,
thread_local char buf[EVENT_REFS_KEY_MAX_SIZE];
assert(opts.event_idx != 0 && event_idx != 0);
assert(opts.event_idx != event_idx);
const string_view &key
{
event_refs_key(buf, event_idx, ref::M_RELATES__M_REPLY, opts.event_idx)
@ -725,6 +733,7 @@ ircd::m::dbs::_index_event_refs_m_room_redaction(db::txn &txn,
thread_local char buf[EVENT_REFS_KEY_MAX_SIZE];
assert(opts.event_idx != 0 && event_idx != 0);
assert(opts.event_idx != event_idx);
const string_view &key
{
event_refs_key(buf, event_idx, ref::M_ROOM_REDACTION, opts.event_idx)