Simple routing and basic auth header checking

src/main.c

@@ -2,39 +2,83 @@
 #include <stdlib.h>
 #include <string.h>
 #include <microhttpd.h>
+#define NOH_IMPLEMENTATION
+#include "noh.h"
+
+
+/* To disable Basic auth for testing:
+#define NO_AUTH
+This will ignore any auth headers and always log in with username demo.
+*/
+
+#define SV Noh_String_View
+#define sv noh_sv_from_cstr
+
+Noh_Arena temp;
+
+static enum MHD_Result send_response(struct MHD_Connection *connection, int status, SV message) {
+    struct MHD_Response *response = MHD_create_response_from_buffer(
+        message.count, (void*)message.elems, MHD_RESPMEM_PERSISTENT);
+    if (!response) return MHD_NO;
+
+    enum MHD_Result ret = MHD_queue_response(connection, status, response);
+    MHD_destroy_response(response);
+    return ret;
+}
+
+static enum MHD_Result handle_opds(struct MHD_Connection *connection, SV url) {
+    (void)url;
+    return send_response(connection, 200, sv("TODO: OPDS\n"));
+}
+
+static enum MHD_Result handle_get(struct MHD_Connection *connection, SV url) {
+    (void)url;
+    return send_response(connection, 200, sv("TODO: Get\n"));
+}
+
+bool is_slash(const char c) { return c == '/'; }
 
 static enum MHD_Result request_handler(
         void *cls,
         struct MHD_Connection *connection, 
-        const char *url, const char *method, const char *version,
+        const char *_url, const char *method, const char *version,
         const char *upload_data, size_t *upload_data_size,
         void **con_cls) {
-    (void)cls;
-    (void)url;
-    (void)method;
-    (void)version;
-    (void)upload_data;
-    (void)upload_data_size;
-    (void)con_cls;
+    (void)cls; (void)con_cls; (void)upload_data; (void)upload_data_size;
 
-    // Create an HTTP response
-    const char *response_text = "Hello, World!";
-    struct MHD_Response *response = MHD_create_response_from_buffer(
-        strlen(response_text), (void *)response_text, MHD_RESPMEM_PERSISTENT);
+    noh_log(NOH_INFO, "Request: %s %s %s", version, method, _url);
 
-    if (!response) return MHD_NO;
+    SV username;
+#ifdef NO_AUTH
+    username = sv("demo");
+#else
+    struct MHD_BasicAuthInfo  *auth = MHD_basic_auth_get_username_password3(connection);
+    if (!auth) return send_response(connection, 401, sv(""));
 
-    // Send the response
-    printf("%s\n", response_text);
-    enum MHD_Result ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
-    MHD_destroy_response(response);
+    username = (SV){ .elems = auth->username, .count = auth->username_len };
+    SV password = { .elems = auth->password, .count = auth->password_len };
 
-    return ret;
+    // TODO: Read username from user config.
+    if (!noh_sv_eq(password, sv("jaja"))) return send_response(connection, 401, sv(""));
+#endif
+
+    noh_log(NOH_INFO, "Authenticated as "Nsv_Fmt, Nsv_Arg(username));
+
+    if (strcmp(method, "GET") != 0) return send_response(connection, 405, sv(""));
+
+    SV url = sv(_url);
+    noh_sv_trim_left(&url, is_slash);;
+    SV controller = noh_sv_chop_by_delim(&url, '/');
+
+    if (noh_sv_eq_ci(controller, sv("opds"))) return handle_opds(connection, url, username);
+    if (noh_sv_eq_ci(controller, sv("get"))) return handle_get(connection, url, username);
+    return send_response(connection, 404, sv(""));
 }
 
 
 int main(void)
 {
+    temp  = noh_arena_init(1 * 1024 * 1024);
     struct MHD_Daemon *server;
 
     // Start the HTTP server