/***************************************************************************
 *                                  _   _ ____  _
 *  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
 *
 ***************************************************************************/
/* This is the 'proxyauth.c' test app posted by Shmulik Regev on the libcurl
 * mailing list on 10 Jul 2007, converted to a test case.
 *
 * argv1 = URL
 * argv2 = proxy
 * argv3 = proxyuser:password
 * argv4 = host name to use for the custom Host: header
 */

#include "test.h"

#include <limits.h>

#include "testutil.h"
#include "warnless.h"
#include "memdebug.h"

#define TEST_HANG_TIMEOUT 60 * 1000

#define PROXY libtest_arg2
#define PROXYUSERPWD libtest_arg3
#define HOST test_argv[4]

#define NUM_HANDLES 2

static CURL *testeh[NUM_HANDLES];

static CURLcode init(int num, CURLM *cm, const char *url, const char *userpwd,
                     struct curl_slist *headers)
{
  CURLcode res = CURLE_OK;

  res_easy_init(testeh[num]);
  if(res)
    goto init_failed;

  res_easy_setopt(testeh[num], CURLOPT_URL, url);
  if(res)
    goto init_failed;

  res_easy_setopt(testeh[num], CURLOPT_PROXY, PROXY);
  if(res)
    goto init_failed;

  res_easy_setopt(testeh[num], CURLOPT_PROXYUSERPWD, userpwd);
  if(res)
    goto init_failed;

  res_easy_setopt(testeh[num], CURLOPT_PROXYAUTH, (long)CURLAUTH_ANY);
  if(res)
    goto init_failed;

  res_easy_setopt(testeh[num], CURLOPT_VERBOSE, 1L);
  if(res)
    goto init_failed;

  res_easy_setopt(testeh[num], CURLOPT_HEADER, 1L);
  if(res)
    goto init_failed;

  res_easy_setopt(testeh[num], CURLOPT_HTTPHEADER, headers); /* custom Host: */
  if(res)
    goto init_failed;

  res_multi_add_handle(cm, testeh[num]);
  if(res)
    goto init_failed;

  return CURLE_OK; /* success */

init_failed:

  curl_easy_cleanup(testeh[num]);
  testeh[num] = NULL;

  return res; /* failure */
}

static CURLcode loop(int num, CURLM *cm, const char *url, const char *userpwd,
                     struct curl_slist *headers)
{
  CURLMsg *msg;
  long L;
  int Q, U = -1;
  fd_set R, W, E;
  struct timeval T;
  CURLcode res = CURLE_OK;

  res = init(num, cm, url, userpwd, headers);
  if(res)
    return res;

  while(U) {

    int M = -99;

    res_multi_perform(cm, &U);
    if(res)
      return res;

    res_test_timedout();
    if(res)
      return res;

    if(U) {
      FD_ZERO(&R);
      FD_ZERO(&W);
      FD_ZERO(&E);

      res_multi_fdset(cm, &R, &W, &E, &M);
      if(res)
        return res;

      /* At this point, M is guaranteed to be greater or equal than -1. */

      res_multi_timeout(cm, &L);
      if(res)
        return res;

      /* At this point, L is guaranteed to be greater or equal than -1. */

      if(L != -1) {
        int itimeout;
#if LONG_MAX > INT_MAX
        itimeout = (L > INT_MAX) ? INT_MAX : (int)L;
#else
        itimeout = (int)L;
#endif
        T.tv_sec = itimeout/1000;
        T.tv_usec = (itimeout%1000)*1000;
      }
      else {
        T.tv_sec = 5;
        T.tv_usec = 0;
      }

      res_select_test(M + 1, &R, &W, &E, &T);
      if(res)
        return res;
    }

    while(1) {
      msg = curl_multi_info_read(cm, &Q);
      if(!msg)
        break;
      if(msg->msg == CURLMSG_DONE) {
        int i;
        CURL *e = msg->easy_handle;
        fprintf(stderr, "R: %d - %s\n", (int)msg->data.result,
                curl_easy_strerror(msg->data.result));
        curl_multi_remove_handle(cm, e);
        curl_easy_cleanup(e);
        for(i = 0; i < NUM_HANDLES; i++) {
          if(testeh[i] == e) {
            testeh[i] = NULL;
            break;
          }
        }
      }
      else
        fprintf(stderr, "E: CURLMsg (%d)\n", (int)msg->msg);
    }

    res_test_timedout();
    if(res)
      return res;
  }

  return CURLE_OK;
}

CURLcode test(char *URL)
{
  CURLM *cm = NULL;
  struct curl_slist *headers = NULL;
  char buffer[246]; /* naively fixed-size */
  CURLcode res = CURLE_OK;
  int i;

  for(i = 0; i < NUM_HANDLES; i++)
    testeh[i] = NULL;

  start_test_timing();

  if(test_argc < 4)
    return (CURLcode)99;

  msnprintf(buffer, sizeof(buffer), "Host: %s", HOST);

  /* now add a custom Host: header */
  headers = curl_slist_append(headers, buffer);
  if(!headers) {
    fprintf(stderr, "curl_slist_append() failed\n");
    return TEST_ERR_MAJOR_BAD;
  }

  res_global_init(CURL_GLOBAL_ALL);
  if(res) {
    curl_slist_free_all(headers);
    return res;
  }

  res_multi_init(cm);
  if(res) {
    curl_global_cleanup();
    curl_slist_free_all(headers);
    return res;
  }

  res = loop(0, cm, URL, PROXYUSERPWD, headers);
  if(res)
    goto test_cleanup;

  fprintf(stderr, "lib540: now we do the request again\n");

  res = loop(1, cm, URL, PROXYUSERPWD, headers);

test_cleanup:

  /* proper cleanup sequence - type PB */

  for(i = 0; i < NUM_HANDLES; i++) {
    curl_multi_remove_handle(cm, testeh[i]);
    curl_easy_cleanup(testeh[i]);
  }

  curl_multi_cleanup(cm);
  curl_global_cleanup();

  curl_slist_free_all(headers);

  return res;
}