1 files changed, 37 insertions, 0 deletions
diff --git a/src/http/flatten.rs b/src/http/flatten.rs
new file mode 100644
index 0000000..51ead0c
--- /dev/null
+++ b/src/http/flatten.rs
@@ -0,0 +1,37 @@
+use std::collections::HashMap;
+
+use super::rule::{HTTPMessage, Method};
+
+#[derive(Debug)]
+pub enum Version {
+    Http0_9,
+    Http1_0,
+    Http1_1,
+    // HTTP/2 won't parse, anyway.
+}
+
+#[derive(Debug)]
+pub struct HTTPRequest {
+    pub method: Method,
+    pub version: Version,
+    pub requested_path: Vec<String>,
+    pub headers: HashMap<String, Vec<u8>>,
+}
+
+pub fn flatten(message: HTTPMessage) -> Option<HTTPRequest> {
+    let method = message.request_line.method;
+    let version = match (message.request_line.http_version.major, message.request_line.http_version.minor) {
+        (0, 9) => Version::Http0_9,
+        (1, 0) => Version::Http1_0,
+        (1, 1) => Version::Http1_1,
+        _ => return None,
+    };
+    let requested_path = message.request_line.request_target.absolute_path.segments.into_iter().map(|segment| segment.lexeme).collect();
+    let headers = message.header_fields.into_iter().map(|field| (field.name.lexeme, field.value.content)).collect();
+    Some(HTTPRequest{
+        method,
+        version,
+        requested_path,
+        headers,
+    })
+}