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Fix #970: Correct validation of TABLIST_HEADERS dialogs #973

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Fix #970: Correct validation of TABLIST_HEADERS dialogs #973

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21 changes: 15 additions & 6 deletions Server/Components/Dialogs/dialog.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -168,21 +168,30 @@ class DialogsComponent final : public IDialogsComponent, public PlayerConnectEve
if ((data->style_ == DialogStyle_LIST || data->style_ == DialogStyle_TABLIST || data->style_ == DialogStyle_TABLIST_HEADERS) && data->body_.length() > 0)
{
unsigned int lines = 0;

for (unsigned int i = 0; i < data->body_.length() - 1; i++)
for (unsigned int i = 0; i < data->body_.length(); i++)
{
if (data->body_[i] == '\n')
if (data->body_[i] != '\n' && i > 0 && data->body_[i - 1] == '\n')
{
lines++;
}
}

if (data->style_ == DialogStyle_TABLIST_HEADERS && lines > 0)
if (data->style_ == DialogStyle_TABLIST_HEADERS)
{
if (lines <= 1)
{
sendDialogResponse.ListItem = 0;
lines = 1;
}
}
else
{
lines--;
if (lines == 0) sendDialogResponse.ListItem = 0;
lines++;
}

if (sendDialogResponse.ListItem < 0 || sendDialogResponse.ListItem > lines)
if (sendDialogResponse.ListItem < 0 || sendDialogResponse.ListItem >= lines)
{
return false;
}
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