Inital commit

readheaders.go

@@ -0,0 +1,71 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"log/slog"
+	"strings"
+)
+
+type Headers struct {
+	Method string
+	Uri    string
+	Proto  string
+
+	KV map[string]string
+}
+
+func readHeaders(reader *bufio.Reader) *Headers {
+	headers := Headers{}
+	kvHeaders := make(map[string]string)
+	versionLine, err := reader.ReadString('\n')
+	if err != nil {
+		slog.Error("Could not read version line", "err", err.Error())
+		return nil
+	}
+
+	method, uri, proto := parseRequestLine(versionLine)
+	if method == "" || uri == "" || proto == "" {
+		slog.Error("Invalid request line", "line", versionLine)
+		return nil
+	}
+
+	headers.Method = method
+	headers.Uri = uri
+	headers.Proto = proto
+
+	headerStr, err := reader.ReadString('\n')
+	if err != nil {
+		slog.Error("Could not read headers", "err", err.Error())
+		return nil
+	}
+
+	for strings.TrimSpace(headerStr) != "" {
+		header := strings.SplitN(headerStr, ":", 2)
+		if len(header) == 2 {
+			kvHeaders[strings.TrimSpace(header[0])] = strings.TrimSpace(header[1])
+		}
+		headerStr, err = reader.ReadString('\n')
+		if err != nil {
+			slog.Error("Could not read headers", "err", err.Error())
+			return nil
+		}
+	}
+	headers.KV = kvHeaders
+	return &headers
+}
+
+func (m *Headers) debugPrintHeaders() {
+	for key, value := range m.KV {
+		fmt.Printf("%s: %s\n", key, value)
+	}
+}
+
+func parseRequestLine(versionLine string) (string, string, string) {
+	cleanLine := strings.TrimSpace(versionLine)
+	parts := strings.Split(cleanLine, " ")
+	if len(parts) != 3 {
+		return "", "", ""
+	}
+	return parts[0], parts[1], parts[2]
+}