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Support Auth check

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This commit is contained in:
Antonio Andelic 2022-05-09 09:16:05 +00:00
parent ad7226e151
commit 9796527890
2 changed files with 106 additions and 91 deletions
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193
src/Coordination/KeeperStorage.cpp
View File

@ -269,6 +269,35 @@ bool KeeperStorage::CurrentNodes::hasNode(StringRef path) const
return exists;
}
Coordination::ACLs KeeperStorage::CurrentNodes::getACLs(StringRef path) const
{
std::optional<uint64_t> acl_id;
if (auto maybe_node_it = storage.container.find(path); maybe_node_it != storage.container.end())
acl_id.emplace(maybe_node_it->value.acl_id);
const Coordination::ACLs * acls{nullptr};
applyDeltas(
path,
Overloaded{
[&](const CreateNodeDelta & create_delta)
{
assert(!acl_id);
acls = &create_delta.acls;
},
[&](const SetACLDelta & set_acl_delta)
{
assert(acl_id || acls);
acls = &set_acl_delta.acls;
},
[&](auto && /*delta*/) {},
});
if (acls)
return *acls;
return acl_id ? storage.acl_map.convertNumber(*acl_id) : Coordination::ACLs{};
}
namespace
{
[[noreturn]] void fail()
@ -304,11 +333,11 @@ Coordination::Error KeeperStorage::commit(int64_t commit_zxid, int64_t session_i
},
[&, &path = delta.path](KeeperStorage::UpdateNodeDelta & update_delta)
{
auto it = container.find(path);
if (it == container.end())
auto node_it = container.find(path);
if (node_it == container.end())
fail();
if (update_delta.version != -1 && update_delta.version != it->value.stat.version)
if (update_delta.version != -1 && update_delta.version != node_it->value.stat.version)
fail();
container.updateValue(path, update_delta.update_fn);
@ -323,14 +352,14 @@ Coordination::Error KeeperStorage::commit(int64_t commit_zxid, int64_t session_i
},
[&, &path = delta.path](KeeperStorage::SetACLDelta & acl_delta)
{
auto it = container.find(path);
if (it != container.end())
auto node_it = container.find(path);
if (node_it != container.end())
fail();
if (acl_delta.version != -1 && acl_delta.version != it->value.stat.aversion)
if (acl_delta.version != -1 && acl_delta.version != node_it->value.stat.aversion)
fail();
acl_map.removeUsage(it->value.acl_id);
acl_map.removeUsage(node_it->value.acl_id);
uint64_t acl_id = acl_map.convertACLs(acl_delta.acls);
acl_map.addUsage(acl_id);
@ -372,12 +401,12 @@ bool KeeperStorage::createNode(
int64_t session_id)
{
auto parent_path = parentPath(path);
auto it = container.find(parent_path);
auto node_it = container.find(parent_path);
if (it == container.end())
if (node_it == container.end())
return false;
if (it->value.stat.ephemeralOwner != 0)
if (node_it->value.stat.ephemeralOwner != 0)
return false;
if (container.contains(path))
@ -406,17 +435,17 @@ bool KeeperStorage::createNode(
bool KeeperStorage::removeNode(const std::string & path, int32_t version)
{
auto it = container.find(path);
if (it == container.end())
auto node_it = container.find(path);
if (node_it == container.end())
return false;
if (version != -1 && version != it->value.stat.version)
if (version != -1 && version != node_it->value.stat.version)
return false;
if (it->value.stat.numChildren)
if (node_it->value.stat.numChildren)
return false;
auto prev_node = it->value;
auto prev_node = node_it->value;
if (prev_node.stat.ephemeralOwner != 0)
{
auto ephemerals_it = ephemerals.find(prev_node.stat.ephemeralOwner);
@ -428,7 +457,8 @@ bool KeeperStorage::removeNode(const std::string & path, int32_t version)
acl_map.removeUsage(prev_node.acl_id);
container.updateValue(
parentPath(path), [child_basename = getBaseName(it->key)](KeeperStorage::Node & parent) { parent.removeChild(child_basename); });
parentPath(path),
[child_basename = getBaseName(node_it->key)](KeeperStorage::Node & parent) { parent.removeChild(child_basename); });
container.erase(path);
return true;
@ -459,7 +489,7 @@ struct KeeperStorageRequestProcessor
{
return {};
}
virtual bool checkAuth(KeeperStorage & /*storage*/, int64_t /*session_id*/) const { return true; }
virtual bool checkAuth(KeeperStorage & /*storage*/, int64_t /*session_id*/, bool /*is_local*/) const { return true; }
virtual ~KeeperStorageRequestProcessor() = default;
};
@ -489,6 +519,21 @@ struct KeeperStorageSyncRequestProcessor final : public KeeperStorageRequestProc
namespace
{
Coordination::ACLs getACLs(KeeperStorage & storage, StringRef path, bool is_local)
{
if (is_local)
{
auto node_it = storage.container.find(path);
if (node_it == storage.container.end())
return {};
return storage.acl_map.convertNumber(node_it->value.acl_id);
}
return storage.current_nodes.getACLs(path);
}
}
struct KeeperStorageCreateRequestProcessor final : public KeeperStorageRequestProcessor
@ -501,17 +546,12 @@ struct KeeperStorageCreateRequestProcessor final : public KeeperStorageRequestPr
return processWatchesImpl(zk_request->getPath(), watches, list_watches, Coordination::Event::CREATED);
}
bool checkAuth(KeeperStorage & storage, int64_t session_id) const override
bool checkAuth(KeeperStorage & storage, int64_t session_id, bool is_local) const override
{
auto & container = storage.container;
auto path = zk_request->getPath();
auto parent_path = parentPath(path);
auto node_it = container.find(parent_path);
if (node_it == container.end())
return true;
const auto & node_acls = storage.acl_map.convertNumber(node_it->value.acl_id);
const auto node_acls = getACLs(storage, parent_path, is_local);
if (node_acls.empty())
return true;
@ -619,14 +659,9 @@ struct KeeperStorageCreateRequestProcessor final : public KeeperStorageRequestPr
struct KeeperStorageGetRequestProcessor final : public KeeperStorageRequestProcessor
{
bool checkAuth(KeeperStorage & storage, int64_t session_id) const override
bool checkAuth(KeeperStorage & storage, int64_t session_id, bool is_local) const override
{
auto & container = storage.container;
auto node_it = container.find(zk_request->getPath());
if (node_it == container.end())
return true;
const auto & node_acls = storage.acl_map.convertNumber(node_it->value.acl_id);
const auto node_acls = getACLs(storage, zk_request->getPath(), is_local);
if (node_acls.empty())
return true;
@ -701,14 +736,9 @@ struct KeeperStorageGetRequestProcessor final : public KeeperStorageRequestProce
struct KeeperStorageRemoveRequestProcessor final : public KeeperStorageRequestProcessor
{
bool checkAuth(KeeperStorage & storage, int64_t session_id) const override
bool checkAuth(KeeperStorage & storage, int64_t session_id, bool is_local) const override
{
auto & container = storage.container;
auto node_it = container.find(parentPath(zk_request->getPath()));
if (node_it == container.end())
return true;
const auto & node_acls = storage.acl_map.convertNumber(node_it->value.acl_id);
const auto node_acls = getACLs(storage, parentPath(zk_request->getPath()), is_local);
if (node_acls.empty())
return true;
@ -853,14 +883,9 @@ struct KeeperStorageExistsRequestProcessor final : public KeeperStorageRequestPr
struct KeeperStorageSetRequestProcessor final : public KeeperStorageRequestProcessor
{
bool checkAuth(KeeperStorage & storage, int64_t session_id) const override
bool checkAuth(KeeperStorage & storage, int64_t session_id, bool is_local) const override
{
auto & container = storage.container;
auto node_it = container.find(zk_request->getPath());
if (node_it == container.end())
return true;
const auto & node_acls = storage.acl_map.convertNumber(node_it->value.acl_id);
const auto node_acls = getACLs(storage, parentPath(zk_request->getPath()), is_local);
if (node_acls.empty())
return true;
@ -937,14 +962,9 @@ struct KeeperStorageSetRequestProcessor final : public KeeperStorageRequestProce
struct KeeperStorageListRequestProcessor final : public KeeperStorageRequestProcessor
{
bool checkAuth(KeeperStorage & storage, int64_t session_id) const override
bool checkAuth(KeeperStorage & storage, int64_t session_id, bool is_local) const override
{
auto & container = storage.container;
auto node_it = container.find(zk_request->getPath());
if (node_it == container.end())
return true;
const auto & node_acls = storage.acl_map.convertNumber(node_it->value.acl_id);
const auto node_acls = getACLs(storage, parentPath(zk_request->getPath()), is_local);
if (node_acls.empty())
return true;
@ -1027,14 +1047,9 @@ struct KeeperStorageListRequestProcessor final : public KeeperStorageRequestProc
struct KeeperStorageCheckRequestProcessor final : public KeeperStorageRequestProcessor
{
bool checkAuth(KeeperStorage & storage, int64_t session_id) const override
bool checkAuth(KeeperStorage & storage, int64_t session_id, bool is_local) const override
{
auto & container = storage.container;
auto node_it = container.find(zk_request->getPath());
if (node_it == container.end())
return true;
const auto & node_acls = storage.acl_map.convertNumber(node_it->value.acl_id);
const auto node_acls = getACLs(storage, parentPath(zk_request->getPath()), is_local);
if (node_acls.empty())
return true;
@ -1114,14 +1129,9 @@ struct KeeperStorageCheckRequestProcessor final : public KeeperStorageRequestPro
struct KeeperStorageSetACLRequestProcessor final : public KeeperStorageRequestProcessor
{
bool checkAuth(KeeperStorage & storage, int64_t session_id) const override
bool checkAuth(KeeperStorage & storage, int64_t session_id, bool is_local) const override
{
auto & container = storage.container;
auto node_it = container.find(zk_request->getPath());
if (node_it == container.end())
return true;
const auto & node_acls = storage.acl_map.convertNumber(node_it->value.acl_id);
const auto node_acls = getACLs(storage, parentPath(zk_request->getPath()), is_local);
if (node_acls.empty())
return true;
@ -1180,14 +1190,9 @@ struct KeeperStorageSetACLRequestProcessor final : public KeeperStorageRequestPr
struct KeeperStorageGetACLRequestProcessor final : public KeeperStorageRequestProcessor
{
bool checkAuth(KeeperStorage & storage, int64_t session_id) const override
bool checkAuth(KeeperStorage & storage, int64_t session_id, bool is_local) const override
{
auto & container = storage.container;
auto node_it = container.find(zk_request->getPath());
if (node_it == container.end())
return true;
const auto & node_acls = storage.acl_map.convertNumber(node_it->value.acl_id);
const auto node_acls = getACLs(storage, parentPath(zk_request->getPath()), is_local);
if (node_acls.empty())
return true;
@ -1260,10 +1265,10 @@ struct KeeperStorageGetACLRequestProcessor final : public KeeperStorageRequestPr
struct KeeperStorageMultiRequestProcessor final : public KeeperStorageRequestProcessor
{
bool checkAuth(KeeperStorage & storage, int64_t session_id) const override
bool checkAuth(KeeperStorage & storage, int64_t session_id, bool is_local) const override
{
for (const auto & concrete_request : concrete_requests)
if (!concrete_request->checkAuth(storage, session_id))
if (!concrete_request->checkAuth(storage, session_id, is_local))
return false;
return true;
}
@ -1542,11 +1547,19 @@ KeeperStorageRequestProcessorsFactory::KeeperStorageRequestProcessorsFactory()
void KeeperStorage::preprocessRequest(
const Coordination::ZooKeeperRequestPtr & request, int64_t session_id, int64_t time, int64_t new_last_zxid)
const Coordination::ZooKeeperRequestPtr & zk_request, int64_t session_id, int64_t time, int64_t new_last_zxid, bool check_acl)
{
current_nodes.current_zxid = new_last_zxid;
KeeperStorageRequestProcessorPtr request_processor = KeeperStorageRequestProcessorsFactory::instance().get(request);
KeeperStorageRequestProcessorPtr request_processor = KeeperStorageRequestProcessorsFactory::instance().get(zk_request);
if (check_acl && !request_processor->checkAuth(*this, session_id, false))
{
current_nodes.deltas.push_back(Delta{new_last_zxid, Coordination::Error::ZNOAUTH});
return;
}
auto new_deltas = request_processor->preprocess(*this, new_last_zxid, session_id, time);
current_nodes.deltas.insert(
current_nodes.deltas.end(), std::make_move_iterator(new_deltas.begin()), std::make_move_iterator(new_deltas.end()));
}
@ -1573,10 +1586,10 @@ KeeperStorage::ResponsesForSessions KeeperStorage::processRequest(
if (zk_request->getOpNum() == Coordination::OpNum::Close) /// Close request is special
{
auto it = ephemerals.find(session_id);
if (it != ephemerals.end())
auto session_ephemerals = ephemerals.find(session_id);
if (session_ephemerals != ephemerals.end())
{
for (const auto & ephemeral_path : it->second)
for (const auto & ephemeral_path : session_ephemerals->second)
{
container.updateValue(
parentPath(ephemeral_path),
@ -1593,7 +1606,7 @@ KeeperStorage::ResponsesForSessions KeeperStorage::processRequest(
auto responses = processWatchesImpl(ephemeral_path, watches, list_watches, Coordination::Event::DELETED);
results.insert(results.end(), responses.begin(), responses.end());
}
ephemerals.erase(it);
ephemerals.erase(session_ephemerals);
}
clearDeadWatches(session_id);
auto auth_it = session_and_auth.find(session_id);
@ -1622,19 +1635,19 @@ KeeperStorage::ResponsesForSessions KeeperStorage::processRequest(
KeeperStorageRequestProcessorPtr request_processor = KeeperStorageRequestProcessorsFactory::instance().get(zk_request);
Coordination::ZooKeeperResponsePtr response;
if (check_acl && !request_processor->checkAuth(*this, session_id))
if (is_local)
{
response = zk_request->makeResponse();
/// Original ZooKeeper always throws no auth, even when user provided some credentials
response->error = Coordination::Error::ZNOAUTH;
if (check_acl && !request_processor->checkAuth(*this, session_id, true))
{
response = zk_request->makeResponse();
/// Original ZooKeeper always throws no auth, even when user provided some credentials
response->error = Coordination::Error::ZNOAUTH;
}
response = request_processor->processLocal(*this, zxid, session_id, time);
}
else
{
if (is_local)
response = request_processor->processLocal(*this, zxid, session_id, time);
else
response = request_processor->process(*this, zxid, session_id, time);
response = request_processor->process(*this, zxid, session_id, time);
std::erase_if(current_nodes.deltas, [this](const auto & delta) { return delta.zxid == zxid; });
}

4
src/Coordination/KeeperStorage.h
View File

@ -174,6 +174,7 @@ public:
std::shared_ptr<Node> getNode(StringRef path);
bool hasNode(StringRef path) const;
Coordination::ACLs getACLs(StringRef path) const;
std::unordered_map<std::string, std::deque<Delta>> node_to_deltas;
std::deque<Delta> deltas;
@ -250,7 +251,8 @@ public:
std::optional<int64_t> new_last_zxid,
bool check_acl = true,
bool is_local = false);
void preprocessRequest(const Coordination::ZooKeeperRequestPtr & request, int64_t session_id, int64_t time, int64_t new_last_zxid);
void preprocessRequest(
const Coordination::ZooKeeperRequestPtr & request, int64_t session_id, int64_t time, int64_t new_last_zxid, bool check_acl = true);
void finalize();