un-nest curl

curl-8.15.0/tests/libtest/lib2301.c

@@ -0,0 +1,155 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ * SPDX-License-Identifier: curl
+ *
+ ***************************************************************************/
+#include "first.h"
+
+#ifndef CURL_DISABLE_WEBSOCKETS
+#if 0
+
+static CURLcode t2301_send_ping(CURL *curl, const char *send_payload)
+{
+  size_t sent;
+  CURLcode result =
+    curl_ws_send(curl, send_payload, strlen(send_payload), &sent, CURLWS_PING);
+  curl_mfprintf(stderr,
+                "ws: curl_ws_send returned %d, sent %d\n", result, (int)sent);
+
+  return result;
+}
+
+static CURLcode t2301_recv_pong(CURL *curl, const char *expected_payload)
+{
+  size_t rlen;
+  unsigned int rflags;
+  char buffer[256];
+  CURLcode result =
+    curl_ws_recv(curl, buffer, sizeof(buffer), &rlen, &rflags);
+  if(rflags & CURLWS_PONG) {
+    int same = 0;
+    curl_mfprintf(stderr, "ws: got PONG back\n");
+    if(rlen == strlen(expected_payload)) {
+      if(!memcmp(expected_payload, buffer, rlen)) {
+        curl_mfprintf(stderr, "ws: got the same payload back\n");
+        same = 1;
+      }
+    }
+    if(!same)
+      curl_mfprintf(stderr, "ws: did NOT get the same payload back\n");
+  }
+  else {
+    curl_mfprintf(stderr, "recv_pong: got %d bytes rflags %x\n",
+                  (int)rlen, rflags);
+  }
+  curl_mfprintf(stderr, "ws: curl_ws_recv returned %d, received %d\n", result,
+                (int)rlen);
+  return result;
+}
+
+/* just close the connection */
+static void t2301_websocket_close(CURL *curl)
+{
+  size_t sent;
+  CURLcode result =
+    curl_ws_send(curl, "", 0, &sent, CURLWS_CLOSE);
+  curl_mfprintf(stderr,
+                "ws: curl_ws_send returned %d, sent %d\n", result, (int)sent);
+}
+
+static void t2301_websocket(CURL *curl)
+{
+  int i = 0;
+  curl_mfprintf(stderr, "ws: websocket() starts\n");
+  do {
+    if(t2301_send_ping(curl, "foobar"))
+      return;
+    if(t2301_recv_pong(curl, "foobar"))
+      return;
+    curlx_wait_ms(2000);
+  } while(i++ < 10);
+  t2301_websocket_close(curl);
+}
+
+#endif
+
+static size_t t2301_write_cb(char *b, size_t size, size_t nitems, void *p)
+{
+  CURL *easy = p;
+  unsigned char *buffer = (unsigned char *)b;
+  size_t i;
+  size_t sent;
+  unsigned char pong[] = {
+    0x8a, 0x0
+  };
+  size_t incoming = nitems;
+  curl_mfprintf(stderr, "Called CURLOPT_WRITEFUNCTION with %d bytes: ",
+                (int)nitems);
+  for(i = 0; i < nitems; i++)
+    curl_mfprintf(stderr, "%02x ", (unsigned char)buffer[i]);
+  curl_mfprintf(stderr, "\n");
+  (void)size;
+  if(buffer[0] == 0x89) {
+    CURLcode result;
+    curl_mfprintf(stderr, "send back a simple PONG\n");
+    result = curl_ws_send(easy, pong, 2, &sent, 0, 0);
+    if(result)
+      nitems = 0;
+  }
+  if(nitems != incoming)
+    curl_mfprintf(stderr, "returns error from callback\n");
+  return nitems;
+}
+#endif
+
+static CURLcode test_lib2301(char *URL)
+{
+#ifndef CURL_DISABLE_WEBSOCKETS
+  CURL *curl;
+  CURLcode res = CURLE_OK;
+
+  global_init(CURL_GLOBAL_ALL);
+
+  curl = curl_easy_init();
+  if(curl) {
+    curl_easy_setopt(curl, CURLOPT_URL, URL);
+
+    /* use the callback style */
+    curl_easy_setopt(curl, CURLOPT_USERAGENT, "webbie-sox/3");
+    curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
+    curl_easy_setopt(curl, CURLOPT_WS_OPTIONS, (long)CURLWS_RAW_MODE);
+    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, t2301_write_cb);
+    curl_easy_setopt(curl, CURLOPT_WRITEDATA, curl);
+    res = curl_easy_perform(curl);
+    curl_mfprintf(stderr, "curl_easy_perform() returned %d\n", res);
+#if 0
+    if(res == CURLE_OK)
+      t2301_websocket(curl);
+#endif
+    /* always cleanup */
+    curl_easy_cleanup(curl);
+  }
+  curl_global_cleanup();
+  return res;
+#else
+  NO_SUPPORT_BUILT_IN
+#endif
+}