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Check parameters first in MessagesManager::get_dialog_history.

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This commit is contained in:
levlam 2023-05-05 15:37:50 +03:00
parent 018f8022f7
commit 96979d91b6
1 changed files with 15 additions and 18 deletions
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33
td/telegram/MessagesManager.cpp
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@ -20979,21 +20979,6 @@ tl_object_ptr<td_api::messages> MessagesManager::get_dialog_history(DialogId dia
promise.set_error(Status::Error(400, "Parameter offset must be greater than or equal to -limit"));
return nullptr;
}
bool is_limit_increased = false;
if (limit == -offset) {
limit++;
is_limit_increased = true;
}
CHECK(0 < limit && limit <= MAX_GET_HISTORY);
CHECK(-limit < offset && offset <= 0);
if (from_message_id == MessageId() || from_message_id.get() > MessageId::max().get()) {
from_message_id = MessageId::max();
}
if (!from_message_id.is_valid()) {
promise.set_error(Status::Error(400, "Invalid value of parameter from_message_id specified"));
return nullptr;
}
const Dialog *d = get_dialog_force(dialog_id, "get_dialog_history");
if (d == nullptr) {
@ -21005,13 +20990,25 @@ tl_object_ptr<td_api::messages> MessagesManager::get_dialog_history(DialogId dia
return nullptr;
}
if (from_message_id == MessageId() || from_message_id.get() > MessageId::max().get()) {
from_message_id = MessageId::max();
}
if (!from_message_id.is_valid()) {
promise.set_error(Status::Error(400, "Invalid value of parameter from_message_id specified"));
return nullptr;
}
LOG(INFO) << "Get " << (only_local ? "local " : "") << "history in " << dialog_id << " from " << from_message_id
<< " with offset " << offset << " and limit " << limit << ", " << left_tries
<< " tries left. Last read inbox message is " << d->last_read_inbox_message_id
<< ", last read outbox message is " << d->last_read_outbox_message_id
<< ", have_full_history = " << d->have_full_history
<< " tries left, have_full_history = " << d->have_full_history
<< ", have_full_history_source = " << d->have_full_history_source;
bool is_limit_increased = false;
if (limit == -offset) {
limit++;
is_limit_increased = true;
}
auto p = d->ordered_messages.get_const_iterator(from_message_id);
LOG(DEBUG) << "Iterator points to " << (*p ? (*p)->get_message_id() : MessageId());
bool from_the_end = (d->last_message_id != MessageId() && from_message_id > d->last_message_id) ||