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905e4d3a14
Instead, the `addr_to_uri` script-level function can be used to explicitly add brackets to an address if it's IPv6 and will be included in a URI or when a ":<port>" needs to be appended to it.
64 lines
1.8 KiB
Text
64 lines
1.8 KiB
Text
##! Utilities specific for HTTP processing.
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@load ./main
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@load base/utils/addrs
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module HTTP;
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export {
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## Given a string containing a series of key-value pairs separated by "=",
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## this function can be used to parse out all of the key names.
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##
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## data: The raw data, such as a URL or cookie value.
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##
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## kv_splitter: A regular expression representing the separator between
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## key-value pairs.
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##
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## Returns: A vector of strings containing the keys.
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global extract_keys: function(data: string, kv_splitter: pattern): string_vec;
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## Creates a URL from an :bro:type:`HTTP::Info` record. This should handle
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## edge cases such as proxied requests appropriately.
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##
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## rec: An :bro:type:`HTTP::Info` record.
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##
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## Returns: A URL, not prefixed by "http://".
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global build_url: function(rec: Info): string;
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## Creates a URL from an :bro:type:`HTTP::Info` record. This should handle
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## edge cases such as proxied requests appropriately.
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##
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## rec: An :bro:type:`HTTP::Info` record.
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##
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## Returns: A URL prefixed with "http://".
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global build_url_http: function(rec: Info): string;
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}
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function extract_keys(data: string, kv_splitter: pattern): string_vec
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{
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local key_vec: vector of string = vector();
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local parts = split(data, kv_splitter);
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for ( part_index in parts )
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{
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local key_val = split1(parts[part_index], /=/);
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if ( 1 in key_val )
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key_vec[|key_vec|] = key_val[1];
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}
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return key_vec;
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}
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function build_url(rec: Info): string
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{
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local uri = rec?$uri ? rec$uri : "/<missed_request>";
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local host = rec?$host ? rec$host : addr_to_uri(rec$id$resp_h);
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if ( rec$id$resp_p != 80/tcp )
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host = fmt("%s:%s", host, rec$id$resp_p);
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return fmt("%s%s", host, uri);
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}
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function build_url_http(rec: Info): string
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{
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return fmt("http://%s", build_url(rec));
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}
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