1/*
2     This file is part of libmicrohttpd
3     Copyright (C) 2007 Christian Grothoff
4
5     libmicrohttpd is free software; you can redistribute it and/or modify
6     it under the terms of the GNU General Public License as published
7     by the Free Software Foundation; either version 2, or (at your
8     option) any later version.
9
10     libmicrohttpd is distributed in the hope that it will be useful, but
11     WITHOUT ANY WARRANTY; without even the implied warranty of
12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13     General Public License for more details.
14
15     You should have received a copy of the GNU General Public License
16     along with libmicrohttpd; see the file COPYING.  If not, write to the
17     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18     Boston, MA 02111-1307, USA.
19*/
20
21/**
22 * @file test_iplimit.c
23 * @brief  Testcase for libmicrohttpd GET operations
24 *         TODO: test parsing of query
25 * @author Christian Grothoff
26 */
27
28#include "MHD_config.h"
29#include "platform.h"
30#include <curl/curl.h>
31#include <microhttpd.h>
32#include <stdlib.h>
33#include <string.h>
34#include <time.h>
35
36#ifndef WINDOWS
37#include <unistd.h>
38#endif
39
40#ifdef _WIN32
41#ifndef WIN32_LEAN_AND_MEAN
42#define WIN32_LEAN_AND_MEAN 1
43#endif /* !WIN32_LEAN_AND_MEAN */
44#include <windows.h>
45#endif
46
47#if defined(CPU_COUNT) && (CPU_COUNT+0) < 2
48#undef CPU_COUNT
49#endif
50#if !defined(CPU_COUNT)
51#define CPU_COUNT 2
52#endif
53
54static int oneone;
55
56struct CBC
57{
58  char *buf;
59  size_t pos;
60  size_t size;
61};
62
63static size_t
64copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
65{
66  struct CBC *cbc = ctx;
67
68  if (cbc->pos + size * nmemb > cbc->size)
69    return 0;                   /* overflow */
70  memcpy (&cbc->buf[cbc->pos], ptr, size * nmemb);
71  cbc->pos += size * nmemb;
72  return size * nmemb;
73}
74
75static int
76ahc_echo (void *cls,
77          struct MHD_Connection *connection,
78          const char *url,
79          const char *method,
80          const char *version,
81          const char *upload_data, size_t *upload_data_size,
82          void **unused)
83{
84  static int ptr;
85  const char *me = cls;
86  struct MHD_Response *response;
87  int ret;
88
89  if (0 != strcmp (me, method))
90    return MHD_NO;              /* unexpected method */
91  if (&ptr != *unused)
92    {
93      *unused = &ptr;
94      return MHD_YES;
95    }
96  *unused = NULL;
97  response = MHD_create_response_from_buffer (strlen (url),
98					      (void *) url,
99					      MHD_RESPMEM_MUST_COPY);
100  ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
101  MHD_destroy_response (response);
102  if (ret == MHD_NO)
103    abort ();
104  return ret;
105}
106
107static int
108testMultithreadedGet ()
109{
110  struct MHD_Daemon *d;
111  char buf[2048];
112  int k;
113  unsigned int success;
114  unsigned int failure;
115
116  /* Test only valid for HTTP/1.1 (uses persistent connections) */
117  if (!oneone)
118    return 0;
119
120  d = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY | MHD_USE_DEBUG,
121                        1081, NULL, NULL,
122                        &ahc_echo, "GET",
123                        MHD_OPTION_PER_IP_CONNECTION_LIMIT, 2,
124                        MHD_OPTION_END);
125  if (d == NULL)
126    return 16;
127
128  for (k = 0; k < 3; ++k)
129    {
130      struct CBC cbc[3];
131      CURL *cenv[3];
132      int i;
133
134      success = 0;
135      failure = 0;
136      for (i = 0; i < 3; ++i)
137        {
138          CURL *c;
139          CURLcode errornum;
140
141          cenv[i] = c = curl_easy_init ();
142          cbc[i].buf = buf;
143          cbc[i].size = 2048;
144          cbc[i].pos = 0;
145
146          curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:1081/hello_world");
147          curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
148          curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc[i]);
149          curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
150          curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
151          curl_easy_setopt (c, CURLOPT_FORBID_REUSE, 0L);
152          curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
153          curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
154          // NOTE: use of CONNECTTIMEOUT without also
155          //   setting NOSIGNAL results in really weird
156          //   crashes on my system!
157          curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);
158
159          errornum = curl_easy_perform (c);
160          if (CURLE_OK == errornum)
161            success++;
162          else
163            failure++;
164        }
165
166      /* Cleanup the environments */
167      for (i = 0; i < 3; ++i)
168        curl_easy_cleanup (cenv[i]);
169      if ( (2 != success) ||
170           (1 != failure) )
171      {
172        fprintf (stderr,
173                 "Unexpected number of success (%u) or failure (%u)\n",
174                 success,
175                 failure);
176        MHD_stop_daemon (d);
177        return 32;
178      }
179
180      sleep(2);
181
182      for (i = 0; i < 2; ++i)
183        {
184          if (cbc[i].pos != strlen ("/hello_world"))
185            {
186              MHD_stop_daemon (d);
187              return 64;
188            }
189          if (0 != strncmp ("/hello_world", cbc[i].buf, strlen ("/hello_world")))
190            {
191              MHD_stop_daemon (d);
192              return 128;
193            }
194        }
195    }
196  MHD_stop_daemon (d);
197  return 0;
198}
199
200static int
201testMultithreadedPoolGet ()
202{
203  struct MHD_Daemon *d;
204  char buf[2048];
205  int k;
206
207  /* Test only valid for HTTP/1.1 (uses persistent connections) */
208  if (!oneone)
209    return 0;
210
211  d = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY | MHD_USE_DEBUG,
212                        1081, NULL, NULL, &ahc_echo, "GET",
213                        MHD_OPTION_PER_IP_CONNECTION_LIMIT, 2,
214                        MHD_OPTION_THREAD_POOL_SIZE, CPU_COUNT,
215                        MHD_OPTION_END);
216  if (d == NULL)
217    return 16;
218
219  for (k = 0; k < 3; ++k)
220    {
221      struct CBC cbc[3];
222      CURL *cenv[3];
223      int i;
224
225      for (i = 0; i < 3; ++i)
226        {
227          CURL *c;
228          CURLcode errornum;
229
230          cenv[i] = c = curl_easy_init ();
231          cbc[i].buf = buf;
232          cbc[i].size = 2048;
233          cbc[i].pos = 0;
234
235          curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:1081/hello_world");
236          curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
237          curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc[i]);
238          curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
239          curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
240          curl_easy_setopt (c, CURLOPT_FORBID_REUSE, 0L);
241          curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
242          curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
243          // NOTE: use of CONNECTTIMEOUT without also
244          //   setting NOSIGNAL results in really weird
245          //   crashes on my system!
246          curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);
247
248          errornum = curl_easy_perform (c);
249          if ( ( (CURLE_OK != errornum) && (i <  2) ) ||
250	       ( (CURLE_OK == errornum) && (i == 2) ) )
251            {
252              int j;
253
254              /* First 2 should succeed */
255              if (i < 2)
256                fprintf (stderr,
257                         "curl_easy_perform failed: `%s'\n",
258                         curl_easy_strerror (errornum));
259
260              /* Last request should have failed */
261              else
262                fprintf (stderr,
263                         "No error on IP address over limit\n");
264
265              for (j = 0; j < i; ++j)
266                curl_easy_cleanup (cenv[j]);
267              MHD_stop_daemon (d);
268              return 32;
269            }
270        }
271
272      /* Cleanup the environments */
273      for (i = 0; i < 3; ++i)
274        curl_easy_cleanup (cenv[i]);
275
276      sleep(2);
277
278      for (i = 0; i < 2; ++i)
279        {
280          if (cbc[i].pos != strlen ("/hello_world"))
281            {
282              MHD_stop_daemon (d);
283              return 64;
284            }
285          if (0 != strncmp ("/hello_world", cbc[i].buf, strlen ("/hello_world")))
286            {
287              MHD_stop_daemon (d);
288              return 128;
289            }
290        }
291
292
293    }
294  MHD_stop_daemon (d);
295  return 0;
296}
297
298int
299main (int argc, char *const *argv)
300{
301  unsigned int errorCount = 0;
302
303  oneone = (NULL != strrchr (argv[0], (int) '/')) ?
304    (NULL != strstr (strrchr (argv[0], (int) '/'), "11")) : 0;
305  if (0 != curl_global_init (CURL_GLOBAL_WIN32))
306    return 2;
307  errorCount |= testMultithreadedGet ();
308  errorCount |= testMultithreadedPoolGet ();
309  if (errorCount != 0)
310    fprintf (stderr, "Error (code: %u)\n", errorCount);
311  curl_global_cleanup ();
312  return errorCount != 0;       /* 0 == pass */
313}
314