Basic Cookie and Set-Cookie (only parsing) headers implementation.

src/header/common/cookie.rs

@@ -0,0 +1,46 @@
+use header::Header;
+use std::fmt::{mod, Show};
+use std::str::from_utf8;
+
+/// The `Cookie` header
+///
+/// If the user agent does attach a Cookie header field to an HTTP
+/// request, the user agent must send the cookie-string
+/// as the value of the header field.
+///
+/// When the user agent generates an HTTP request, the user agent MUST NOT 
+/// attach more than one Cookie header field.
+#[deriving(Clone, PartialEq, Show)]
+pub struct Cookie(pub Vec<String>);
+
+impl Header for Cookie {
+    fn header_name(_: Option<Cookie>) -> &'static str {
+        "Cookie"
+    }
+
+    fn parse_header(raw: &[Vec<u8>]) -> Option<Cookie> {
+        let mut cookies: Vec<String> = vec![];
+        for cookies_raw in raw.iter() {
+            match from_utf8(cookies_raw.as_slice()) {
+                Some(cookies_str) => {
+                    for cookie in cookies_str.split(';') {
+                        cookies.push(cookie.to_string())
+                    }
+                },
+                None => return None
+            };
+        }
+
+        if !cookies.is_empty() {
+            Some(Cookie(cookies))
+        } else {
+            None
+        }
+    }
+
+    fn fmt_header(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
+        let Cookie(ref value) = *self;
+        value.connect("; ").fmt(fmt)
+    }
+}
+