27 lines
777 B
Rust
27 lines
777 B
Rust
use opensmtpd::{return_data_line, run_filter, Filter, FilterEntry};
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use opensmtpd_derive::register;
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pub const HEADER_NAME: &str = "x-originating-ip:";
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pub const HEADER_LEN: usize = 17;
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struct RmXOriginatingIp {}
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impl Filter for RmXOriginatingIp {
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#[register]
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fn on_filter_data_line(&mut self, entry: &FilterEntry, data_line: &[u8]) {
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if data_line.len() >= HEADER_LEN {
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let head_start = data_line[..HEADER_LEN].to_vec();
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if let Ok(s) = String::from_utf8(head_start) {
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if s.to_lowercase() == HEADER_NAME {
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return;
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}
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}
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}
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return_data_line(entry, data_line);
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}
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}
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fn main() {
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let mut my_filter = RmXOriginatingIp {};
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run_filter(&mut my_filter);
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}
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