mod_websocket: Fire pre-session-close event (fixes #1800)
This event was added in a7c183bb4e64 and is required to make mod_smacks know
that a session was intentionally closed and shouldn't be hibernated (see
fcea4d9e7502).
Because this was missing from mod_websocket's session.close(), mod_smacks
would always attempt to hibernate websocket sessions even if they closed
cleanly.
That mod_websocket has its own copy of session.close() is something to fix
another day (probably not in the stable branch). So for now this commit makes
the minimal change to get things working again.
Thanks to Damian and the Jitsi team for reporting.
local m_type = math.type or function (n)
return n % 1 == 0 and n <= 9007199254740992 and n >= -9007199254740992 and "integer" or "float";
end;
local function unescape_token(escaped_token)
local unescaped = escaped_token:gsub("~1", "/"):gsub("~0", "~")
return unescaped
end
local function resolve_json_pointer(ref, path)
local ptr_len = #path + 1
for part, pos in path:gmatch("/([^/]*)()") do
local token = unescape_token(part)
if not (type(ref) == "table") then
return nil
end
local idx = next(ref)
local new_ref
if type(idx) == "string" then
new_ref = ref[token]
elseif m_type(idx) == "integer" then
local i = tonumber(token)
if token == "-" then
i = #ref + 1
end
new_ref = ref[i + 1]
else
return nil, "invalid-table"
end
if pos == ptr_len then
return new_ref
elseif type(new_ref) == "table" then
ref = new_ref
elseif not (type(ref) == "table") then
return nil, "invalid-path"
end
end
return ref
end
return { resolve = resolve_json_pointer }