feat(lander): re-add Server header

lnm/include/lnm/http/loop.h

@@ -85,6 +85,8 @@ lnm_err lnm_http_loop_run(lnm_http_loop *hl, uint16_t port);
 
 void lnm_http_loop_set_api_key(lnm_http_loop *hl, const char *api_key);
 
+void lnm_http_loop_set_server(lnm_http_loop *hl, const char *value);
+
 /**
  * Represents what state an HTTP loop request is currently in.
  */
@@ -118,6 +120,7 @@ typedef struct lnm_http_loop_gctx {
   lnm_http_ctx_reset_fn ctx_reset;
   lnm_http_ctx_free_fn ctx_free;
   const char *api_key;
+  const char *server;
   void *c;
 } lnm_http_loop_gctx;
 

lnm/src/http/lnm_http_loop.c

@@ -131,3 +131,8 @@ void lnm_http_loop_set_api_key(lnm_http_loop *hl, const char *api_key) {
   lnm_http_loop_gctx *gctx = hl->gctx;
   gctx->api_key = api_key;
 }
+
+void lnm_http_loop_set_server(lnm_http_loop *hl, const char *server) {
+  lnm_http_loop_gctx *gctx = hl->gctx;
+  gctx->server = server;
+}

lnm/src/http/lnm_http_loop_process.c

@@ -158,6 +158,11 @@ void lnm_http_loop_state_process_add_headers(lnm_http_conn *conn) {
   lnm_http_res_add_header_len(res, lnm_http_header_content_length, buf, digits,
                               true);
 
+  if (ctx->g->server != NULL) {
+    lnm_http_res_add_header(res, lnm_http_header_server, (char *)ctx->g->server,
+                            false);
+  }
+
   ctx->state = lnm_http_loop_state_write_status_line;
 }
 

src/main.c

@@ -7,6 +7,8 @@
 #include "lander.h"
 #include "log.h"
 
+const char *lander_server = "lander/" LANDER_VERSION;
+
 lnm_http_loop *loop_init(lander_gctx *gctx, const char *api_key) {
   lnm_http_loop *hl;
   lnm_http_step *step = NULL;
@@ -15,6 +17,7 @@ lnm_http_loop *loop_init(lander_gctx *gctx, const char *api_key) {
                      (lnm_http_ctx_reset_fn)lander_ctx_reset,
                      (lnm_http_ctx_free_fn)lander_ctx_free);
   lnm_http_loop_set_api_key(hl, api_key);
+  lnm_http_loop_set_server(hl, lander_server);
 
   lnm_http_step_init(&step, lander_get_index);
   lnm_http_route_init_literal(&route, lnm_http_method_get, "/", step);