64 lines
1.8 KiB
Rust
64 lines
1.8 KiB
Rust
use http::{HeaderMap, HeaderValue};
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use std::net::IpAddr;
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use std::str::FromStr;
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use crate::error::{Error, OkOrMessage};
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pub fn handle_forwarded_for_headers(headers: &HeaderMap<HeaderValue>) -> Result<String, Error> {
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let forwarded_for_header = headers
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.get("x-forwarded-for")
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.ok_or_message("X-Forwarded-For header not provided")?;
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let forwarded_for_ip_str = forwarded_for_header
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.to_str()
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.ok_or_message("Error parsing X-Forwarded-For header")?;
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let client_ip = IpAddr::from_str(&forwarded_for_ip_str)
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.ok_or_message("Valid IP address not found in X-Forwarded-For header")?;
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Ok(client_ip.to_string())
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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fn test_handle_forwarded_for_headers_ipv4_client() {
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let mut test_headers = HeaderMap::new();
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test_headers.insert("X-Forwarded-For", "192.0.2.100".parse().unwrap());
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if let Ok(forwarded_ip) = handle_forwarded_for_headers(&test_headers) {
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assert_eq!(forwarded_ip, "192.0.2.100");
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}
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}
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#[test]
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fn test_handle_forwarded_for_headers_ipv6_client() {
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let mut test_headers = HeaderMap::new();
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test_headers.insert("X-Forwarded-For", "2001:db8::f00d:cafe".parse().unwrap());
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if let Ok(forwarded_ip) = handle_forwarded_for_headers(&test_headers) {
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assert_eq!(forwarded_ip, "2001:db8::f00d:cafe");
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}
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}
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#[test]
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fn test_handle_forwarded_for_headers_invalid_ip() {
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let mut test_headers = HeaderMap::new();
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test_headers.insert("X-Forwarded-For", "www.example.com".parse().unwrap());
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let result = handle_forwarded_for_headers(&test_headers);
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assert!(result.is_err());
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}
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#[test]
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fn test_handle_forwarded_for_headers_missing() {
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let mut test_headers = HeaderMap::new();
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test_headers.insert("Host", "www.deuxfleurs.fr".parse().unwrap());
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let result = handle_forwarded_for_headers(&test_headers);
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assert!(result.is_err());
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}
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}
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