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_post.c
23 * @brief  Testcase for libmicrohttpd POST operations using URL-encoding
24 * @author Christian Grothoff
25 */
26
27#include "MHD_config.h"
28#include "platform.h"
29#include <curl/curl.h>
30#include <microhttpd.h>
31#include <stdlib.h>
32#include <string.h>
33#include <time.h>
34
35#ifndef WINDOWS
36#include <unistd.h>
37#endif
38
39#ifdef _WIN32
40#ifndef WIN32_LEAN_AND_MEAN
41#define WIN32_LEAN_AND_MEAN 1
42#endif /* !WIN32_LEAN_AND_MEAN */
43#include <windows.h>
44#endif
45
46#if defined(CPU_COUNT) && (CPU_COUNT+0) < 2
47#undef CPU_COUNT
48#endif
49#if !defined(CPU_COUNT)
50#define CPU_COUNT 2
51#endif
52
53#define POST_DATA "name=daniel&project=curl"
54
55static int oneone;
56
57struct CBC
58{
59  char *buf;
60  size_t pos;
61  size_t size;
62};
63
64
65static void
66completed_cb (void *cls,
67	      struct MHD_Connection *connection,
68	      void **con_cls,
69	      enum MHD_RequestTerminationCode toe)
70{
71  struct MHD_PostProcessor *pp = *con_cls;
72
73  if (NULL != pp)
74    MHD_destroy_post_processor (pp);
75  *con_cls = NULL;
76}
77
78
79static size_t
80copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
81{
82  struct CBC *cbc = ctx;
83
84  if (cbc->pos + size * nmemb > cbc->size)
85    return 0;                   /* overflow */
86  memcpy (&cbc->buf[cbc->pos], ptr, size * nmemb);
87  cbc->pos += size * nmemb;
88  return size * nmemb;
89}
90
91
92/**
93 * Note that this post_iterator is not perfect
94 * in that it fails to support incremental processing.
95 * (to be fixed in the future)
96 */
97static int
98post_iterator (void *cls,
99               enum MHD_ValueKind kind,
100               const char *key,
101               const char *filename,
102               const char *content_type,
103               const char *transfer_encoding,
104               const char *value, uint64_t off, size_t size)
105{
106  int *eok = cls;
107
108  if ((0 == strcmp (key, "name")) &&
109      (size == strlen ("daniel")) && (0 == strncmp (value, "daniel", size)))
110    (*eok) |= 1;
111  if ((0 == strcmp (key, "project")) &&
112      (size == strlen ("curl")) && (0 == strncmp (value, "curl", size)))
113    (*eok) |= 2;
114  return MHD_YES;
115}
116
117
118static int
119ahc_echo (void *cls,
120          struct MHD_Connection *connection,
121          const char *url,
122          const char *method,
123          const char *version,
124          const char *upload_data, size_t *upload_data_size,
125          void **unused)
126{
127  static int eok;
128  struct MHD_Response *response;
129  struct MHD_PostProcessor *pp;
130  int ret;
131
132  if (0 != strcmp ("POST", method))
133    {
134      printf ("METHOD: %s\n", method);
135      return MHD_NO;            /* unexpected method */
136    }
137  pp = *unused;
138  if (pp == NULL)
139    {
140      eok = 0;
141      pp = MHD_create_post_processor (connection, 1024, &post_iterator, &eok);
142      *unused = pp;
143    }
144  MHD_post_process (pp, upload_data, *upload_data_size);
145  if ((eok == 3) && (0 == *upload_data_size))
146    {
147      response = MHD_create_response_from_buffer (strlen (url),
148						  (void *) url,
149						  MHD_RESPMEM_MUST_COPY);
150      ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
151      MHD_destroy_response (response);
152      MHD_destroy_post_processor (pp);
153      *unused = NULL;
154      return ret;
155    }
156  *upload_data_size = 0;
157  return MHD_YES;
158}
159
160
161static int
162testInternalPost ()
163{
164  struct MHD_Daemon *d;
165  CURL *c;
166  char buf[2048];
167  struct CBC cbc;
168  CURLcode errornum;
169
170  cbc.buf = buf;
171  cbc.size = 2048;
172  cbc.pos = 0;
173  d = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY | MHD_USE_DEBUG,
174                        1080, NULL, NULL, &ahc_echo, NULL,
175			MHD_OPTION_NOTIFY_COMPLETED, &completed_cb, NULL,
176			MHD_OPTION_END);
177  if (d == NULL)
178    return 1;
179  c = curl_easy_init ();
180  curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:1080/hello_world");
181  curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
182  curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
183  curl_easy_setopt (c, CURLOPT_POSTFIELDS, POST_DATA);
184  curl_easy_setopt (c, CURLOPT_POSTFIELDSIZE, strlen (POST_DATA));
185  curl_easy_setopt (c, CURLOPT_POST, 1L);
186  curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
187  curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
188  if (oneone)
189    curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
190  else
191    curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
192  curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
193  // NOTE: use of CONNECTTIMEOUT without also
194  //   setting NOSIGNAL results in really weird
195  //   crashes on my system!
196  curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);
197  if (CURLE_OK != (errornum = curl_easy_perform (c)))
198    {
199      fprintf (stderr,
200               "curl_easy_perform failed: `%s'\n",
201               curl_easy_strerror (errornum));
202      curl_easy_cleanup (c);
203      MHD_stop_daemon (d);
204      return 2;
205    }
206  curl_easy_cleanup (c);
207  MHD_stop_daemon (d);
208  if (cbc.pos != strlen ("/hello_world"))
209    return 4;
210  if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
211    return 8;
212  return 0;
213}
214
215static int
216testMultithreadedPost ()
217{
218  struct MHD_Daemon *d;
219  CURL *c;
220  char buf[2048];
221  struct CBC cbc;
222  CURLcode errornum;
223
224  cbc.buf = buf;
225  cbc.size = 2048;
226  cbc.pos = 0;
227  d = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION | MHD_USE_DEBUG,
228                        1081, NULL, NULL, &ahc_echo, NULL,
229			MHD_OPTION_NOTIFY_COMPLETED, &completed_cb, NULL,
230			MHD_OPTION_END);
231  if (d == NULL)
232    return 16;
233  c = curl_easy_init ();
234  curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:1081/hello_world");
235  curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
236  curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
237  curl_easy_setopt (c, CURLOPT_POSTFIELDS, POST_DATA);
238  curl_easy_setopt (c, CURLOPT_POSTFIELDSIZE, strlen (POST_DATA));
239  curl_easy_setopt (c, CURLOPT_POST, 1L);
240  curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
241  curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
242  if (oneone)
243    curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
244  else
245    curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
246  curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
247  // NOTE: use of CONNECTTIMEOUT without also
248  //   setting NOSIGNAL results in really weird
249  //   crashes on my system!
250  curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);
251  if (CURLE_OK != (errornum = curl_easy_perform (c)))
252    {
253      fprintf (stderr,
254               "curl_easy_perform failed: `%s'\n",
255               curl_easy_strerror (errornum));
256      curl_easy_cleanup (c);
257      MHD_stop_daemon (d);
258      return 32;
259    }
260  curl_easy_cleanup (c);
261  MHD_stop_daemon (d);
262  if (cbc.pos != strlen ("/hello_world"))
263    return 64;
264  if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
265    return 128;
266  return 0;
267}
268
269static int
270testMultithreadedPoolPost ()
271{
272  struct MHD_Daemon *d;
273  CURL *c;
274  char buf[2048];
275  struct CBC cbc;
276  CURLcode errornum;
277
278  cbc.buf = buf;
279  cbc.size = 2048;
280  cbc.pos = 0;
281  d = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY | MHD_USE_DEBUG,
282                        1081, NULL, NULL, &ahc_echo, NULL,
283                        MHD_OPTION_THREAD_POOL_SIZE, CPU_COUNT,
284			MHD_OPTION_NOTIFY_COMPLETED, &completed_cb, NULL,
285			MHD_OPTION_END);
286  if (d == NULL)
287    return 16;
288  c = curl_easy_init ();
289  curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:1081/hello_world");
290  curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
291  curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
292  curl_easy_setopt (c, CURLOPT_POSTFIELDS, POST_DATA);
293  curl_easy_setopt (c, CURLOPT_POSTFIELDSIZE, strlen (POST_DATA));
294  curl_easy_setopt (c, CURLOPT_POST, 1L);
295  curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
296  curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
297  if (oneone)
298    curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
299  else
300    curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
301  curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
302  // NOTE: use of CONNECTTIMEOUT without also
303  //   setting NOSIGNAL results in really weird
304  //   crashes on my system!
305  curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);
306  if (CURLE_OK != (errornum = curl_easy_perform (c)))
307    {
308      fprintf (stderr,
309               "curl_easy_perform failed: `%s'\n",
310               curl_easy_strerror (errornum));
311      curl_easy_cleanup (c);
312      MHD_stop_daemon (d);
313      return 32;
314    }
315  curl_easy_cleanup (c);
316  MHD_stop_daemon (d);
317  if (cbc.pos != strlen ("/hello_world"))
318    return 64;
319  if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
320    return 128;
321  return 0;
322}
323
324static int
325testExternalPost ()
326{
327  struct MHD_Daemon *d;
328  CURL *c;
329  char buf[2048];
330  struct CBC cbc;
331  CURLM *multi;
332  CURLMcode mret;
333  fd_set rs;
334  fd_set ws;
335  fd_set es;
336  MHD_socket max;
337  int running;
338  struct CURLMsg *msg;
339  time_t start;
340  struct timeval tv;
341
342  multi = NULL;
343  cbc.buf = buf;
344  cbc.size = 2048;
345  cbc.pos = 0;
346  d = MHD_start_daemon (MHD_USE_DEBUG,
347                        1082, NULL, NULL, &ahc_echo, NULL,
348			MHD_OPTION_NOTIFY_COMPLETED, &completed_cb, NULL,
349			MHD_OPTION_END);
350  if (d == NULL)
351    return 256;
352  c = curl_easy_init ();
353  curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:1082/hello_world");
354  curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
355  curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
356  curl_easy_setopt (c, CURLOPT_POSTFIELDS, POST_DATA);
357  curl_easy_setopt (c, CURLOPT_POSTFIELDSIZE, strlen (POST_DATA));
358  curl_easy_setopt (c, CURLOPT_POST, 1L);
359  curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
360  curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
361  if (oneone)
362    curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
363  else
364    curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
365  curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
366  // NOTE: use of CONNECTTIMEOUT without also
367  //   setting NOSIGNAL results in really weird
368  //   crashes on my system!
369  curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);
370
371
372  multi = curl_multi_init ();
373  if (multi == NULL)
374    {
375      curl_easy_cleanup (c);
376      MHD_stop_daemon (d);
377      return 512;
378    }
379  mret = curl_multi_add_handle (multi, c);
380  if (mret != CURLM_OK)
381    {
382      curl_multi_cleanup (multi);
383      curl_easy_cleanup (c);
384      MHD_stop_daemon (d);
385      return 1024;
386    }
387  start = time (NULL);
388  while ((time (NULL) - start < 5) && (multi != NULL))
389    {
390      max = 0;
391      FD_ZERO (&rs);
392      FD_ZERO (&ws);
393      FD_ZERO (&es);
394      curl_multi_perform (multi, &running);
395      mret = curl_multi_fdset (multi, &rs, &ws, &es, &max);
396      if (mret != CURLM_OK)
397        {
398          curl_multi_remove_handle (multi, c);
399          curl_multi_cleanup (multi);
400          curl_easy_cleanup (c);
401          MHD_stop_daemon (d);
402          return 2048;
403        }
404      if (MHD_YES != MHD_get_fdset (d, &rs, &ws, &es, &max))
405        {
406          curl_multi_remove_handle (multi, c);
407          curl_multi_cleanup (multi);
408          curl_easy_cleanup (c);
409          MHD_stop_daemon (d);
410          return 4096;
411        }
412      tv.tv_sec = 0;
413      tv.tv_usec = 1000;
414      select (max + 1, &rs, &ws, &es, &tv);
415      curl_multi_perform (multi, &running);
416      if (running == 0)
417        {
418          msg = curl_multi_info_read (multi, &running);
419          if (msg == NULL)
420            break;
421          if (msg->msg == CURLMSG_DONE)
422            {
423              if (msg->data.result != CURLE_OK)
424                printf ("%s failed at %s:%d: `%s'\n",
425                        "curl_multi_perform",
426                        __FILE__,
427                        __LINE__, curl_easy_strerror (msg->data.result));
428              curl_multi_remove_handle (multi, c);
429              curl_multi_cleanup (multi);
430              curl_easy_cleanup (c);
431              c = NULL;
432              multi = NULL;
433            }
434        }
435      MHD_run (d);
436    }
437  if (multi != NULL)
438    {
439      curl_multi_remove_handle (multi, c);
440      curl_easy_cleanup (c);
441      curl_multi_cleanup (multi);
442    }
443  MHD_stop_daemon (d);
444  if (cbc.pos != strlen ("/hello_world"))
445    return 8192;
446  if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
447    return 16384;
448  return 0;
449}
450
451
452static int
453ahc_cancel (void *cls,
454	    struct MHD_Connection *connection,
455	    const char *url,
456	    const char *method,
457	    const char *version,
458	    const char *upload_data, size_t *upload_data_size,
459	    void **unused)
460{
461  struct MHD_Response *response;
462  int ret;
463
464  if (0 != strcmp ("POST", method))
465    {
466      fprintf (stderr,
467	       "Unexpected method `%s'\n", method);
468      return MHD_NO;
469    }
470
471  if (*unused == NULL)
472    {
473      *unused = "wibble";
474      /* We don't want the body. Send a 500. */
475      response = MHD_create_response_from_buffer (0, NULL,
476						  MHD_RESPMEM_PERSISTENT);
477      ret = MHD_queue_response(connection, 500, response);
478      if (ret != MHD_YES)
479	fprintf(stderr, "Failed to queue response\n");
480      MHD_destroy_response(response);
481      return ret;
482    }
483  else
484    {
485      fprintf(stderr,
486	      "In ahc_cancel again. This should not happen.\n");
487      return MHD_NO;
488    }
489}
490
491struct CRBC
492{
493  const char *buffer;
494  size_t size;
495  size_t pos;
496};
497
498
499static size_t
500readBuffer(void *p, size_t size, size_t nmemb, void *opaque)
501{
502  struct CRBC *data = opaque;
503  size_t required = size * nmemb;
504  size_t left = data->size - data->pos;
505
506  if (required > left)
507    required = left;
508
509  memcpy(p, data->buffer + data->pos, required);
510  data->pos += required;
511
512  return required/size;
513}
514
515
516static size_t
517slowReadBuffer(void *p, size_t size, size_t nmemb, void *opaque)
518{
519  sleep(1);
520  return readBuffer(p, size, nmemb, opaque);
521}
522
523
524#define FLAG_EXPECT_CONTINUE 1
525#define FLAG_CHUNKED 2
526#define FLAG_FORM_DATA 4
527#define FLAG_SLOW_READ 8
528#define FLAG_COUNT 16
529
530
531static int
532testMultithreadedPostCancelPart(int flags)
533{
534  struct MHD_Daemon *d;
535  CURL *c;
536  char buf[2048];
537  struct CBC cbc;
538  CURLcode errornum;
539  struct curl_slist *headers = NULL;
540  long response_code;
541  CURLcode cc;
542  int result = 0;
543  struct CRBC crbc;
544
545  /* Don't test features that aren't available with HTTP/1.0 in
546   * HTTP/1.0 mode. */
547  if (!oneone && (flags & (FLAG_EXPECT_CONTINUE | FLAG_CHUNKED)))
548    return 0;
549
550  cbc.buf = buf;
551  cbc.size = 2048;
552  cbc.pos = 0;
553  d = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION | MHD_USE_DEBUG,
554                        1081, NULL, NULL, &ahc_cancel, NULL,
555			MHD_OPTION_END);
556  if (d == NULL)
557    return 32768;
558
559  crbc.buffer = "Test content";
560  crbc.size = strlen(crbc.buffer);
561  crbc.pos = 0;
562
563  c = curl_easy_init ();
564  curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1:1081/hello_world");
565  curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
566  curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
567  curl_easy_setopt (c, CURLOPT_READFUNCTION, (flags & FLAG_SLOW_READ) ? &slowReadBuffer : &readBuffer);
568  curl_easy_setopt (c, CURLOPT_READDATA, &crbc);
569  curl_easy_setopt (c, CURLOPT_POSTFIELDS, NULL);
570  curl_easy_setopt (c, CURLOPT_POSTFIELDSIZE, crbc.size);
571  curl_easy_setopt (c, CURLOPT_POST, 1L);
572  curl_easy_setopt (c, CURLOPT_FAILONERROR, 1);
573  curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
574  if (oneone)
575    curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
576  else
577    curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
578  curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
579  // NOTE: use of CONNECTTIMEOUT without also
580  //   setting NOSIGNAL results in really weird
581  //   crashes on my system!
582  curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1);
583
584  if (flags & FLAG_CHUNKED)
585      headers = curl_slist_append(headers, "Transfer-Encoding: chunked");
586  if (!(flags & FLAG_FORM_DATA))
587  headers = curl_slist_append(headers, "Content-Type: application/octet-stream");
588  if (flags & FLAG_EXPECT_CONTINUE)
589      headers = curl_slist_append(headers, "Expect: 100-Continue");
590  curl_easy_setopt(c, CURLOPT_HTTPHEADER, headers);
591
592  if (CURLE_HTTP_RETURNED_ERROR != (errornum = curl_easy_perform (c)))
593    {
594      fprintf (stderr,
595               "flibbet curl_easy_perform didn't fail as expected: `%s' %d\n",
596               curl_easy_strerror (errornum), errornum);
597      curl_easy_cleanup (c);
598      MHD_stop_daemon (d);
599      curl_slist_free_all(headers);
600      return 65536;
601    }
602
603  if (CURLE_OK != (cc = curl_easy_getinfo(c, CURLINFO_RESPONSE_CODE, &response_code)))
604    {
605      fprintf(stderr, "curl_easy_getinfo failed: '%s'\n", curl_easy_strerror(errornum));
606      result = 65536;
607    }
608
609  if (!result && (response_code != 500))
610    {
611      fprintf(stderr, "Unexpected response code: %ld\n", response_code);
612      result = 131072;
613    }
614
615  if (!result && (cbc.pos != 0))
616    result = 262144;
617
618  curl_easy_cleanup (c);
619  MHD_stop_daemon (d);
620  curl_slist_free_all(headers);
621  return result;
622}
623
624
625static int
626testMultithreadedPostCancel()
627{
628  int result = 0;
629  int flags;
630  for(flags = 0; flags < FLAG_COUNT; ++flags)
631    result |= testMultithreadedPostCancelPart(flags);
632  return result;
633}
634
635
636int
637main (int argc, char *const *argv)
638{
639  unsigned int errorCount = 0;
640
641  oneone = (NULL != strrchr (argv[0], (int) '/')) ?
642    (NULL != strstr (strrchr (argv[0], (int) '/'), "11")) : 0;
643  if (0 != curl_global_init (CURL_GLOBAL_WIN32))
644    return 2;
645  errorCount += testMultithreadedPostCancel ();
646  errorCount += testInternalPost ();
647  errorCount += testMultithreadedPost ();
648  errorCount += testMultithreadedPoolPost ();
649  errorCount += testExternalPost ();
650  if (errorCount != 0)
651    fprintf (stderr, "Error (code: %u)\n", errorCount);
652  curl_global_cleanup ();
653  return errorCount != 0;       /* 0 == pass */
654}
655