1 files changed, 81 insertions, 0 deletions
diff --git a/dnsdist-lua-web.cc b/dnsdist-lua-web.cc
new file mode 100644
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--- /dev/null
+++ b/dnsdist-lua-web.cc
@@ -0,0 +1,81 @@
+/*
+ * This file is part of PowerDNS or dnsdist.
+ * Copyright -- PowerDNS.COM B.V. and its contributors
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * In addition, for the avoidance of any doubt, permission is granted to
+ * link this program with OpenSSL and to (re)distribute the binaries
+ * produced as the result of such linking.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#include <yahttp/yahttp.hpp>
+
+#include "dnsdist.hh"
+#include "dnsdist-lua.hh"
+#include "dnsdist-web.hh"
+
+void registerWebHandler(const std::string& endpoint, std::function<void(const YaHTTP::Request&, YaHTTP::Response&)> handler);
+
+void setupLuaWeb(LuaContext& luaCtx)
+{
+#ifndef DISABLE_LUA_WEB_HANDLERS
+  luaCtx.writeFunction("registerWebHandler", [](const std::string& path, std::function<void(const YaHTTP::Request*, YaHTTP::Response*)> handler) {
+    /* LuaWrapper does a copy for objects passed by reference, so we pass a pointer */
+    registerWebHandler(path, [handler](const YaHTTP::Request& req, YaHTTP::Response& resp) { handler(&req, &resp); });
+  });
+
+  luaCtx.registerMember<std::string(YaHTTP::Request::*)>("path", [](const YaHTTP::Request& req) -> std::string { return req.url.path; }, [](YaHTTP::Request& req, const std::string& path) { (void) path; });
+  luaCtx.registerMember<int(YaHTTP::Request::*)>("version", [](const YaHTTP::Request& req) -> int { return req.version; }, [](YaHTTP::Request& req, int version) { (void) version; });
+  luaCtx.registerMember<std::string(YaHTTP::Request::*)>("method", [](const YaHTTP::Request& req) -> std::string { return req.method; }, [](YaHTTP::Request& req, const std::string& method) { (void) method; });
+  luaCtx.registerMember<std::string(YaHTTP::Request::*)>("body", [](const YaHTTP::Request& req) -> const std::string { return req.body; }, [](YaHTTP::Request& req, const std::string& body) { (void) body; });
+  luaCtx.registerMember<LuaAssociativeTable<std::string>(YaHTTP::Request::*)>("getvars", [](const YaHTTP::Request& req) {
+    LuaAssociativeTable<std::string> values;
+    for (const auto& entry : req.getvars) {
+      values.insert({entry.first, entry.second});
+    }
+    return values;
+  }, [](YaHTTP::Request& req, const LuaAssociativeTable<std::string>& values) { (void) values; });
+  luaCtx.registerMember<LuaAssociativeTable<std::string>(YaHTTP::Request::*)>("postvars", [](const YaHTTP::Request& req) {
+    LuaAssociativeTable<std::string> values;
+    for (const auto& entry : req.postvars) {
+      values.insert({entry.first, entry.second});
+    }
+    return values;
+  }, [](YaHTTP::Request& req, const LuaAssociativeTable<std::string>& values) { (void) values; });
+  luaCtx.registerMember<LuaAssociativeTable<std::string>(YaHTTP::Request::*)>("headers", [](const YaHTTP::Request& req) {
+    LuaAssociativeTable<std::string> values;
+    for (const auto& entry : req.headers) {
+      values.insert({entry.first, entry.second});
+    }
+    return values;
+  }, [](YaHTTP::Request& req, const LuaAssociativeTable<std::string>& values) { (void) values; });
+
+  /* Response */
+  luaCtx.registerMember<std::string(YaHTTP::Response::*)>("body", [](const YaHTTP::Response& resp) -> const std::string { return resp.body; }, [](YaHTTP::Response& resp, const std::string& body) { resp.body = body; });
+  luaCtx.registerMember<int(YaHTTP::Response::*)>("status", [](const YaHTTP::Response& resp) -> int { return resp.status; }, [](YaHTTP::Response& resp, int status) { resp.status = status; });
+  luaCtx.registerMember<LuaAssociativeTable<std::string>(YaHTTP::Response::*)>("headers", [](const YaHTTP::Response& resp) {
+    LuaAssociativeTable<std::string> values;
+    for (const auto& entry : resp.headers) {
+      values.insert({entry.first, entry.second});
+    }
+    return values;
+  }, [](YaHTTP::Response& resp, const LuaAssociativeTable<std::string>& values) {
+    resp.headers.clear();
+    for (const auto& entry : values) {
+      resp.headers.insert({entry.first, entry.second});
+    }
+  });
+#endif /* DISABLE_LUA_WEB_HANDLERS */
+}
+