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47500ceef4
Fixed most @load dependency issues in the process. The test is still failing in a "known" way due to hot.conn.bro and scan.bro. Adressess #545
60 lines
1.7 KiB
Text
60 lines
1.7 KiB
Text
##! Extracts the items from HTTP traffic, one per file. At this time only
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##! the message body from the server can be extracted with this script.
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@load ./main
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@load ./file-ident
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@load base/utils/files
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module HTTP;
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export {
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## Pattern of file mime types to extract from HTTP entity bodies.
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const extract_file_types = /NO_DEFAULT/ &redef;
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## The on-disk prefix for files to be extracted from HTTP entity bodies.
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const extraction_prefix = "http-item" &redef;
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redef record Info += {
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## This field can be set per-connection to determine if the entity body
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## will be extracted. It must be set to T on or before the first
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## entity_body_data event.
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extracting_file: bool &default=F;
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## This is the holder for the file handle as the file is being written
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## to disk.
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extraction_file: file &log &optional;
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};
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redef record State += {
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entity_bodies: count &default=0;
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};
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}
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event http_entity_data(c: connection, is_orig: bool, length: count, data: string) &priority=5
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{
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# Client body extraction is not currently supported in this script.
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if ( is_orig || ! c$http$first_chunk ) return;
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if ( c$http$first_chunk )
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{
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if ( c$http?$mime_type &&
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extract_file_types in c$http$mime_type )
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{
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c$http$extracting_file = T;
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local suffix = fmt("%s_%d.dat", is_orig ? "orig" : "resp", ++c$http_state$entity_bodies);
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local fname = generate_extraction_filename(extraction_prefix, c, suffix);
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c$http$extraction_file = open(fname);
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enable_raw_output(c$http$extraction_file);
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}
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}
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if ( c$http$extracting_file )
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print c$http$extraction_file, data;
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}
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event http_end_entity(c: connection, is_orig: bool)
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{
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if ( c$http$extracting_file )
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close(c$http$extraction_file);
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}
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