Add Visione backend foundation

2026-06-02 19:22:00 +02:00
commit 580789ac83
52 changed files with 5008 additions and 0 deletions
@@ -0,0 +1,119 @@
+#include "common/Email.h"
+
+#include <drogon/drogon.h>
+
+#include <array>
+#include <cstring>
+#include <string>
+
+#include <netdb.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+namespace visione::email
+{
+namespace
+{
+std::string configString(const std::string &key, const std::string &fallback)
+{
+    const auto &mail = drogon::app().getCustomConfig()["mail"];
+    return mail.get(key, fallback).asString();
+}
+
+int configInt(const std::string &key, int fallback)
+{
+    const auto &mail = drogon::app().getCustomConfig()["mail"];
+    return mail.get(key, fallback).asInt();
+}
+
+bool readResponse(int socket)
+{
+    std::array<char, 512> buffer{};
+    const auto count = recv(socket, buffer.data(), buffer.size() - 1, 0);
+    return count > 0 && buffer[0] >= '2' && buffer[0] <= '3';
+}
+
+bool sendLine(int socket, const std::string &line)
+{
+    const auto payload = line + "\r\n";
+    return send(socket, payload.data(), payload.size(), 0) ==
+           static_cast<ssize_t>(payload.size());
+}
+
+bool sendCommand(int socket, const std::string &line)
+{
+    return sendLine(socket, line) && readResponse(socket);
+}
+}  // namespace
+
+bool EmailService::sendOtp(const std::string &to, const std::string &code) const
+{
+    const auto host = configString("smtp_host", "127.0.0.1");
+    const auto port = std::to_string(configInt("smtp_port", 1025));
+    const auto from = configString("from", "[email protected]");
+
+    addrinfo hints{};
+    hints.ai_family = AF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+
+    addrinfo *addresses = nullptr;
+    if (getaddrinfo(host.c_str(), port.c_str(), &hints, &addresses) != 0)
+    {
+        return false;
+    }
+
+    int smtp = -1;
+    for (auto *address = addresses; address != nullptr; address = address->ai_next)
+    {
+        smtp = socket(address->ai_family, address->ai_socktype, address->ai_protocol);
+        if (smtp < 0)
+        {
+            continue;
+        }
+        if (connect(smtp, address->ai_addr, address->ai_addrlen) == 0)
+        {
+            break;
+        }
+        close(smtp);
+        smtp = -1;
+    }
+    freeaddrinfo(addresses);
+
+    if (smtp < 0)
+    {
+        return false;
+    }
+
+    const auto closeSocket = [&smtp]() {
+        if (smtp >= 0)
+        {
+            close(smtp);
+            smtp = -1;
+        }
+    };
+
+    if (!readResponse(smtp) || !sendCommand(smtp, "HELO visione.local") ||
+        !sendCommand(smtp, "MAIL FROM:<" + from + ">") ||
+        !sendCommand(smtp, "RCPT TO:<" + to + ">") ||
+        !sendCommand(smtp, "DATA"))
+    {
+        closeSocket();
+        return false;
+    }
+
+    const std::string body =
+        "From: Visione <" + from + ">\r\n"
+        "To: " + to + "\r\n"
+        "Subject: Codice OTP Visione\r\n"
+        "Content-Type: text/plain; charset=UTF-8\r\n"
+        "\r\n"
+        "Il tuo codice OTP per Visione e': " + code + "\r\n"
+        "Scade tra 10 minuti.\r\n"
+        ".";
+
+    const auto ok = sendCommand(smtp, body) && sendCommand(smtp, "QUIT");
+    closeSocket();
+    return ok;
+}
+}  // namespace visione::email
+