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Avoid crashing script if bson can't be parsed. See #2393

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dmiller
2021-11-11 16:26:27 +00:00
parent f062c59843
commit 07811b8006
1 changed files with 6 additions and 1 deletions
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7
nselib/mongodb.lua
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@@ -40,7 +40,7 @@ local err =stdnse.debug1
-- For more documentation about the BSON format, -- For more documentation about the BSON format,
---and more details about its implementations, check out the ---and more details about its implementations, check out the
-- python BSON implementation which is available at -- python BSON implementation which is available at
-- http://github.com/mongodb/mongo-python-driver/blob/master/pymongo/bson.py -- http://github.com/mongodb/mongo-python-driver/blob/master/bson/
-- and licensed under the Apache License, Version 2.0 http://www.apache.org/licenses/LICENSE-2.0) -- and licensed under the Apache License, Version 2.0 http://www.apache.org/licenses/LICENSE-2.0)
-- --
-- @author Martin Holst Swende -- @author Martin Holst Swende
@@ -239,6 +239,11 @@ local function _elements_to_dict(data)
local key,value local key,value
while data and data:len() > 1 do while data and data:len() > 1 do
key, value, data = _element_to_dict(data) key, value, data = _element_to_dict(data)
if not key then
-- TODO: handle failures better; report error up the stack?
dbg_err("Failed to parse element, returning truncated table")
return result
end
dbg("Parsed (%s='%s'), data left : %d", tostring(key),tostring(value), data:len()) dbg("Parsed (%s='%s'), data left : %d", tostring(key),tostring(value), data:len())
if type(value) ~= 'table' then value=tostring(value) end if type(value) ~= 'table' then value=tostring(value) end
result[key] = value result[key] = value