mirror of
https://github.com/zeek/zeek.git
synced 2025-10-02 14:48:21 +00:00
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, $x2=2);
70 lines
1.5 KiB
Text
70 lines
1.5 KiB
Text
@load ./info
|
|
@load ./main
|
|
@load ./utils
|
|
@load base/utils/conn-ids
|
|
@load base/frameworks/files
|
|
|
|
module FTP;
|
|
|
|
export {
|
|
## Default file handle provider for FTP.
|
|
global get_file_handle: function(c: connection, is_orig: bool): string;
|
|
|
|
## Describe the file being transferred.
|
|
global describe_file: function(f: fa_file): string;
|
|
|
|
redef record fa_file += {
|
|
ftp: FTP::Info &optional;
|
|
};
|
|
}
|
|
|
|
function get_file_handle(c: connection, is_orig: bool): string
|
|
{
|
|
if ( [c$id$resp_h, c$id$resp_p] !in ftp_data_expected )
|
|
return "";
|
|
|
|
return cat(Analyzer::ANALYZER_FTP_DATA, c$start_time, c$id, is_orig);
|
|
}
|
|
|
|
function describe_file(f: fa_file): string
|
|
{
|
|
# This shouldn't be needed, but just in case...
|
|
if ( f$source != "FTP" )
|
|
return "";
|
|
|
|
for ( _, c in f$conns )
|
|
{
|
|
if ( c?$ftp )
|
|
return FTP::describe(c$ftp);
|
|
}
|
|
return "";
|
|
}
|
|
|
|
event zeek_init() &priority=5
|
|
{
|
|
Files::register_protocol(Analyzer::ANALYZER_FTP_DATA,
|
|
Files::ProtoRegistration($get_file_handle = FTP::get_file_handle,
|
|
$describe = FTP::describe_file));
|
|
}
|
|
|
|
event file_over_new_connection(f: fa_file, c: connection, is_orig: bool) &priority=5
|
|
{
|
|
if ( [c$id$resp_h, c$id$resp_p] !in ftp_data_expected )
|
|
return;
|
|
|
|
local ftp = ftp_data_expected[c$id$resp_h, c$id$resp_p];
|
|
ftp$fuid = f$id;
|
|
|
|
f$ftp = ftp;
|
|
}
|
|
|
|
event file_sniff(f: fa_file, meta: fa_metadata) &priority=5
|
|
{
|
|
if ( ! f?$ftp )
|
|
return;
|
|
|
|
if ( ! meta?$mime_type )
|
|
return;
|
|
|
|
f$ftp$mime_type = meta$mime_type;
|
|
}
|