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d5fd29edcd
While we support initializing records via coercion from an expression
list, e.g.,
local x: X = [$x1=1, $x2=2];
this can sometimes obscure the code to readers, e.g., when assigning to
value declared and typed elsewhere. The language runtime has a similar
overhead since instead of just constructing a known type it needs to
check at runtime that the coercion from the expression list is valid;
this can be slower than just writing the readible code in the first
place, see #4559.
With this patch we use explicit construction, e.g.,
local x = X($x1=1, $x2=2);
73 lines
2.1 KiB
Text
73 lines
2.1 KiB
Text
@load base/frameworks/intel
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@load ./where-locations
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@load base/utils/addrs
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event http_header(c: connection, is_orig: bool, name: string, value: string) &group="Intel::ADDR"
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{
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if ( ! is_orig )
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return;
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switch ( name )
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{
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case "HOST":
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# Remove the occasional port value that shows up here.
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local host = gsub(value, /:[[:digit:]]+$/, "");
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if ( is_valid_ip(host) )
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Intel::seen(Intel::Seen($host=to_addr(host),
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$indicator_type=Intel::ADDR,
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$conn=c,
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$where=HTTP::IN_HOST_HEADER));
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break;
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case "X-FORWARDED-FOR":
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if ( is_valid_ip(value) )
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{
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local addrs = extract_ip_addresses(value);
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for ( i in addrs )
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{
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Intel::seen(Intel::Seen($host=to_addr(addrs[i]),
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$indicator_type=Intel::ADDR,
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$conn=c,
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$where=HTTP::IN_X_FORWARDED_FOR_HEADER));
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}
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}
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break;
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}
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}
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event http_header(c: connection, is_orig: bool, name: string, value: string) &group="Intel::DOMAIN"
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{
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if ( ! is_orig || name != "HOST" )
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return;
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# Remove the occasional port value that shows up here.
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local host = gsub(value, /:[[:digit:]]+$/, "");
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if ( ! is_valid_ip(host) )
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Intel::seen(Intel::Seen($indicator=host,
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$indicator_type=Intel::DOMAIN,
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$conn=c,
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$where=HTTP::IN_HOST_HEADER));
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}
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event http_header(c: connection, is_orig: bool, name: string, value: string) &group="Intel::URL"
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{
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if ( ! is_orig || name != "REFERER" )
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return;
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Intel::seen(Intel::Seen($indicator=sub(value, /^.*:\/\//, ""),
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$indicator_type=Intel::URL,
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$conn=c,
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$where=HTTP::IN_REFERRER_HEADER));
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}
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event http_header(c: connection, is_orig: bool, name: string, value: string) &group="Intel::SOFTWARE"
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{
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if ( ! is_orig || name != "USER-AGENT" )
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return;
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Intel::seen(Intel::Seen($indicator=value,
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$indicator_type=Intel::SOFTWARE,
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$conn=c,
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$where=HTTP::IN_USER_AGENT_HEADER));
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}
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