[Bro-Dev] [JIRA] (BIT-1504) The facility to serialize tables to a log

Aaron Eppert (JIRA) jira at bro-tracker.atlassian.net
Thu Nov 5 12:53:00 PST 2015

Aaron Eppert created BIT-1504:

             Summary: The facility to serialize tables to a log
                 Key: BIT-1504
                 URL: https://bro-tracker.atlassian.net/browse/BIT-1504
             Project: Bro Issue Tracker
          Issue Type: New Feature
          Components: Bro
            Reporter: Aaron Eppert
            Priority: High

```@load base/protocols/http/main
@load base/protocols/http/utils

module HTTP;

redef record Info += {
	cookies: table[string] of string &optional &log;

event http_header(c: connection, is_orig: bool, name: string, value: string)
	if ( is_orig && name == "COOKIE" ) {
		if ( ! c$http?$cookies ) {
			c$http$cookies = table();
		local cookie_vec = split_string(value, /;[[:blank:]]*/);
		for (cookie in cookie_vec) {
			local kv = split_string(value, /=/);
			if (|kv| == 2) {
				c$http$cookies[kv[0]] = kv[1];
Simple example. The ability to serialize the above to a log file, given it uses simple string indices and values would seem to be straight forward per looking at the Ascii and JSON writers, which appear to support TYPE_TABLE natively. I spent some time looking at how to implement this at the layers above, but the (!t->IsSet()) in SerialTypes.cc's Value::IsCompatibleType(...) is an obvious blocker and I ran out of time to deduce the rest.

I would assume I am not alone in this want as it would make proper downstream referencing of the resulting KV pairs from the table especially easy to navigate. This is, again, very much the case when using the JSON writer given it should natively serialize into very easily usable KV pair notation.

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