Restructured Makefile

Makefile

@@ -1,7 +1,14 @@
-libnosni.so: nss.c common.c common.cpp common.h
-	g++ -c common.cpp -o cpp.o
-	gcc -g -fPIC -shared -I /usr/include/nspr/ nss.c common.c cpp.o -o libnosni.so
-	rm -f cpp.o
+libnosni.so: nss.o common.o common_cpp.o
+	g++ -g -fPIC -shared -ldl -lcurl -lcurlpp *.o -o libnosni.so
+
+nss.o: nss.c
+	gcc -c -fPIC -I /usr/include/nspr/ nss.c -o nss.o
+
+common.o: common.c common.h
+	gcc -c -fPIC common.c -o common.o
+
+common_cpp.o: common.cpp common.h
+	g++ -c -fPIC -std=c++17 common.cpp -o common_cpp.o
 
 clean:
 	rm -f *.so *.o

common.cpp

@@ -1 +1,36 @@
- 
+#include <string>
+#include <string_view>
+#include <unordered_map>
+#include <optional>
+#include <curlpp/cURLpp.hpp>
+#include <curlpp/Easy.hpp>
+#include <curlpp/Options.hpp>
+
+
+static
+std::unordered_map<std::string, bool> cache;
+
+
+
+static
+std::optional<bool> cached_is_domain_blocked(const char *hostname) {
+    auto fres = cache.find(hostname);
+    if (fres != cache.end()) {
+        return fres->second;
+    }
+    return {};
+}
+
+extern "C"
+bool is_domain_blocked(const char *hostname) {
+    // Check cache first
+    {
+        auto fres = cached_is_domain_blocked(hostname);
+        if (fres.has_value()) {
+            return fres.value();
+        }
+    }
+
+    // Use curlpp to check for HTTP != 200
+
+}

common.h

@@ -1 +1,2 @@
 const char *resolve_hostname_to_str(const char *hostname);
+_Bool is_domain_blocked(const char *hostname);

nss.c

@@ -3,7 +3,6 @@
 #include <stdio.h>
 #include <dlfcn.h>
 #include <nss/ssl.h>
-#include <nss/cms.h>
 
 
 
@@ -37,11 +36,3 @@ SECStatus SSL_SetURL(PRFileDesc *fd, const char *url) {
 	// Report success
 	return SECSuccess;
 }
-
-extern char *
-NSS_CMSSignerInfo_GetSignerCommonName(NSSCMSSignerInfo *sinfo) {
-	printf("Interrupted common signer name getter; returning debug domain.\n");
-	fflush(stdout);
-
-	return strdup("hello.com");
-}