feat: add post redirect route

src/lander/lander_post.c

@@ -4,7 +4,35 @@
 bool lander_post_redirect(event_loop_conn *conn) {
   http_loop_ctx *ctx = conn->ctx;
 
-  info("%.*s", ctx->req.body_len, ctx->req.body);
+  // Allocate a new buffer to pass to the trie
+  char *url = malloc(ctx->req.body_len + 1);
+  memcpy(url, ctx->req.body, ctx->req.body_len);
+  url[ctx->req.body_len] = '\0';
+
+  char *key;
+  Entry *new_entry = entry_new(Redirect, url);
+  TrieExitCode res = trie_add_random(ctx->g->trie, &key, new_entry, false);
+
+  if (res != Ok) {
+    error("trie_add_random failed with exit code %i", res);
+
+    ctx->res.status = http_internal_server_error;
+    conn->state = event_loop_conn_state_res;
+
+    return true;
+  }
+
+  // Add a slash to the key and add it as the location header
+  size_t key_len = strlen(key);
+  char *buf = malloc(key_len + 2);
+
+  memcpy(&buf[1], key, key_len);
+  buf[0] = '/';
+  buf[key_len + 1] = '\0';
+
+  free(key);
+
+  http_loop_res_add_header(ctx, http_header_location, buf, true);
 
   conn->state = event_loop_conn_state_res;