refactor - pasdns can now look sane 3.0

parser/parser.go

@@ -0,0 +1,81 @@
+package parser
+
+import (
+	"regexp"
+	"strings"
+
+	"git.gay/exhq/pas/src/Constants"
+)
+
+func CheckIpSyntax(ip string) bool {
+	res, _ := regexp.MatchString(`^((25[0-5]|(2[0-4]|1\d|[1-9]|)\d)\.?\b){4}$`, ip)
+	return res
+}
+
+func CheckDomainSyntax(domain string) bool {
+	res, _ := regexp.MatchString(`[a-z0-9]{2,}\.(gaming|sex2|dev|meow|horse)`, domain)
+	return res
+}
+
+func CheckKeysExistDomain(m map[string]string) bool {
+	for _, key := range []string{"domain", "ip"} {
+		if _, ok := m[key]; !ok {
+			return false
+		}
+	}
+	return true
+}
+
+func ParseIntent(intent string) Constants.Intent {
+	if intent == "" {
+		return Constants.Intent{
+			Method:  Constants.UNKNOWN,
+			Path:    "",
+			Version: "",
+			Headers: map[string]string{},
+		}
+	}
+
+	lines := strings.Split(intent, "\n")
+	if len(lines) < 1 {
+		return Constants.Intent{
+			Method:  Constants.UNKNOWN,
+			Path:    "",
+			Version: "",
+			Headers: map[string]string{},
+		}
+	}
+
+	firstLine := lines[0]
+	parts := strings.Fields(firstLine)
+	if len(parts) != 3 {
+		return Constants.Intent{
+			Method:  Constants.UNKNOWN,
+			Path:    "",
+			Version: "",
+			Headers: map[string]string{},
+		}
+	}
+
+	method := Constants.UNKNOWN
+	if parts[0] == string(Constants.GET) {
+		method = Constants.GET
+	} else if parts[0] == string(Constants.POST) {
+		method = Constants.POST
+	}
+
+	headers := make(map[string]string)
+	for _, line := range lines[1:] {
+		headerParts := strings.SplitN(line, ":", 2)
+		if len(headerParts) == 2 {
+			headers[strings.TrimSpace(headerParts[0])] = strings.TrimSpace(headerParts[1])
+		}
+	}
+
+	return Constants.Intent{
+		Method:  method,
+		Path:    parts[1],
+		Version: strings.ReplaceAll(parts[2], "PAS/", ""),
+		Headers: headers,
+	}
+}