v3.0.2 init commit

+ Fixed zeroSSL bug (said by @yeungalan ) #45
+ Fixed manual renew button bug
+ Seperated geodb module with access controller
+ Added per hosts access control (experimental) #69
+ Fixed basic auth not working on TLS bypass mode bug
+ Fixed empty domain crash bug #120

src/mod/dynamicproxy/access.go

@@ -0,0 +1,64 @@
+package dynamicproxy
+
+import (
+	"log"
+	"net/http"
+	"os"
+	"path/filepath"
+
+	"imuslab.com/zoraxy/mod/access"
+	"imuslab.com/zoraxy/mod/netutils"
+)
+
+// Handle access check (blacklist / whitelist), return true if request is handled (aka blocked)
+// if the return value is false, you can continue process the response writer
+func (h *ProxyHandler) handleAccessRouting(ruleID string, w http.ResponseWriter, r *http.Request) bool {
+	accessRule, err := h.Parent.Option.AccessController.GetAccessRuleByID(ruleID)
+	if err != nil {
+		//Unable to load access rule. Target rule not found?
+		log.Println("[Proxy] Unable to load access rule: " + ruleID)
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write([]byte("500 - Internal Server Error"))
+		return true
+	}
+	isBlocked, blockedReason := accessRequestBlocked(accessRule, h.Parent.Option.WebDirectory, w, r)
+	if isBlocked {
+		h.logRequest(r, false, 403, blockedReason, "")
+	}
+	return isBlocked
+}
+
+// Return boolean, return true if access is blocked
+// For string, it will return the blocked reason (if any)
+func accessRequestBlocked(accessRule *access.AccessRule, templateDirectory string, w http.ResponseWriter, r *http.Request) (bool, string) {
+	//Check if this ip is in blacklist
+	clientIpAddr := netutils.GetRequesterIP(r)
+	if accessRule.IsBlacklisted(clientIpAddr) {
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		w.WriteHeader(http.StatusForbidden)
+		template, err := os.ReadFile(filepath.Join(templateDirectory, "templates/blacklist.html"))
+		if err != nil {
+			w.Write(page_forbidden)
+		} else {
+			w.Write(template)
+		}
+
+		return true, "blacklist"
+	}
+
+	//Check if this ip is in whitelist
+	if !accessRule.IsWhitelisted(clientIpAddr) {
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		w.WriteHeader(http.StatusForbidden)
+		template, err := os.ReadFile(filepath.Join(templateDirectory, "templates/whitelist.html"))
+		if err != nil {
+			w.Write(page_forbidden)
+		} else {
+			w.Write(template)
+		}
+		return true, "whitelist"
+	}
+
+	//Not blocked.
+	return false, ""
+}