src/testcurl/test_iplimit.c - manifest_repos/libmicrohttpd - Git at Google

 /*
      This file is part of libmicrohttpd
      Copyright (C) 2007 Christian Grothoff
      Copyright (C) 2014-2022 Evgeny Grin (Karlson2k)

      libmicrohttpd is free software; you can redistribute it and/or modify
      it under the terms of the GNU General Public License as published
      by the Free Software Foundation; either version 2, or (at your
      option) any later version.

      libmicrohttpd is distributed in the hope that it will be useful, but
      WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      General Public License for more details.

      You should have received a copy of the GNU General Public License
      along with libmicrohttpd; see the file COPYING.  If not, write to the
      Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
      Boston, MA 02110-1301, USA.
 */

 /**
  * @file test_iplimit.c
  * @brief  Testcase for libmicrohttpd limits per IP
  * @author Christian Grothoff
  * @author Karlson2k (Evgeny Grin)
  */

 #include "MHD_config.h"
 #include "platform.h"
 #include <curl/curl.h>
 #include <microhttpd.h>
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
 #include "mhd_has_in_name.h"

 #ifndef WINDOWS
 #include <unistd.h>
 #endif

 #ifdef _WIN32
 #ifndef WIN32_LEAN_AND_MEAN
 #define WIN32_LEAN_AND_MEAN 1
 #endif /* !WIN32_LEAN_AND_MEAN */
 #include <windows.h>
 #endif

 #if defined(MHD_CPU_COUNT) && (MHD_CPU_COUNT + 0) < 2
 #undef MHD_CPU_COUNT
 #endif
 #if ! defined(MHD_CPU_COUNT)
 #define MHD_CPU_COUNT 2
 #endif

 static int oneone;

 struct CBC
 {
   char *buf;
   size_t pos;
   size_t size;
 };

 static size_t
 copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
 {
   struct CBC *cbc = ctx;

   if (cbc->pos + size * nmemb > cbc->size)
     return 0;                   /* overflow */
   memcpy (&cbc->buf[cbc->pos], ptr, size * nmemb);
   cbc->pos += size * nmemb;
   return size * nmemb;
 }


 static enum MHD_Result
 ahc_echo (void *cls,
           struct MHD_Connection *connection,
           const char *url,
           const char *method,
           const char *version,
           const char *upload_data, size_t *upload_data_size,
           void **req_cls)
 {
   static int ptr;
   struct MHD_Response *response;
   enum MHD_Result ret;
   (void) cls;
   (void) version; (void) upload_data; (void) upload_data_size;       /* Unused. Silent compiler warning. */

   if (0 != strcmp (MHD_HTTP_METHOD_GET, method))
     return MHD_NO;              /* unexpected method */
   if (&ptr != *req_cls)
   {
     *req_cls = &ptr;
     return MHD_YES;
   }
   *req_cls = NULL;
   response = MHD_create_response_from_buffer_copy (strlen (url),
                                                    (const void *) url);
   ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
   MHD_destroy_response (response);
   if (ret == MHD_NO)
     abort ();
   return ret;
 }


 static unsigned int
 testMultithreadedGet (void)
 {
   struct MHD_Daemon *d;
   char buf[2048];
   int k;
   unsigned int success;
   unsigned int failure;
   uint16_t port;

   if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
     port = 0;
   else
   {
     port = 1260;
     if (oneone)
       port += 5;
   }

   /* Test only valid for HTTP/1.1 (uses persistent connections) */
   if (! oneone)
     return 0;

   d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG,
                         port, NULL, NULL,
                         &ahc_echo, NULL,
                         MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 2,
                         MHD_OPTION_END);
   if (d == NULL)
     return 16;
   if (0 == port)
   {
     const union MHD_DaemonInfo *dinfo;
     dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
     if ((NULL == dinfo) || (0 == dinfo->port) )
     {
       MHD_stop_daemon (d); return 32;
     }
     port = dinfo->port;
   }

   for (k = 0; k < 3; ++k)
   {
     struct CBC cbc[3];
     CURL *cenv[3];
     int i;

     success = 0;
     failure = 0;
     for (i = 0; i < 3; ++i)
     {
       CURL *c;
       CURLcode errornum;

       cenv[i] = c = curl_easy_init ();
       cbc[i].buf = buf;
       cbc[i].size = 2048;
       cbc[i].pos = 0;

       curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/hello_world");
       curl_easy_setopt (c, CURLOPT_PORT, (long) port);
       curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
       curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc[i]);
       curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
       curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
       curl_easy_setopt (c, CURLOPT_FORBID_REUSE, 0L);
       curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
       curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
       /* NOTE: use of CONNECTTIMEOUT without also
        *   setting NOSIGNAL results in really weird
        *   crashes on my system! */
       curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1L);

       errornum = curl_easy_perform (c);
       if (CURLE_OK == errornum)
         success++;
       else
         failure++;
     }

     /* Cleanup the environments */
     for (i = 0; i < 3; ++i)
       curl_easy_cleanup (cenv[i]);
     if ( (2 != success) ||
          (1 != failure) )
     {
       fprintf (stderr,
                "Unexpected number of success (%u) or failure (%u)\n",
                success,
                failure);
       MHD_stop_daemon (d);
       return 32;
     }

     (void) sleep (2);

     for (i = 0; i < 2; ++i)
     {
       if (cbc[i].pos != strlen ("/hello_world"))
       {
         MHD_stop_daemon (d);
         return 64;
       }
       if (0 != strncmp ("/hello_world", cbc[i].buf, strlen ("/hello_world")))
       {
         MHD_stop_daemon (d);
         return 128;
       }
     }
   }
   MHD_stop_daemon (d);
   return 0;
 }


 static unsigned int
 testMultithreadedPoolGet (void)
 {
   struct MHD_Daemon *d;
   char buf[2048];
   int k;
   uint16_t port;
   if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
     port = 0;
   else
   {
     port = 1261;
     if (oneone)
       port += 5;
   }

   /* Test only valid for HTTP/1.1 (uses persistent connections) */
   if (! oneone)
     return 0;

   d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG,
                         port, NULL, NULL, &ahc_echo, NULL,
                         MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 2,
                         MHD_OPTION_THREAD_POOL_SIZE, MHD_CPU_COUNT,
                         MHD_OPTION_END);
   if (d == NULL)
     return 16;
   if (0 == port)
   {
     const union MHD_DaemonInfo *dinfo;
     dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
     if ((NULL == dinfo) || (0 == dinfo->port) )
     {
       MHD_stop_daemon (d); return 32;
     }
     port = dinfo->port;
   }

   for (k = 0; k < 3; ++k)
   {
     struct CBC cbc[3];
     CURL *cenv[3];
     int i;

     for (i = 0; i < 3; ++i)
     {
       CURL *c;
       CURLcode errornum;

       cenv[i] = c = curl_easy_init ();
       cbc[i].buf = buf;
       cbc[i].size = 2048;
       cbc[i].pos = 0;

       curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/hello_world");
       curl_easy_setopt (c, CURLOPT_PORT, (long) port);
       curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
       curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc[i]);
       curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
       curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
       curl_easy_setopt (c, CURLOPT_FORBID_REUSE, 0L);
       curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
       curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
       /* NOTE: use of CONNECTTIMEOUT without also
        *   setting NOSIGNAL results in really weird
        *   crashes on my system! */
       curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1L);

       errornum = curl_easy_perform (c);
       if ( ( (CURLE_OK != errornum) && (i <  2) ) ||
            ( (CURLE_OK == errornum) && (i == 2) ) )
       {
         int j;

         /* First 2 should succeed */
         if (i < 2)
           fprintf (stderr,
                    "curl_easy_perform failed: `%s'\n",
                    curl_easy_strerror (errornum));

         /* Last request should have failed */
         else
           fprintf (stderr,
                    "No error on IP address over limit\n");

         for (j = 0; j < i; ++j)
           curl_easy_cleanup (cenv[j]);
         MHD_stop_daemon (d);
         return 32;
       }
     }

     /* Cleanup the environments */
     for (i = 0; i < 3; ++i)
       curl_easy_cleanup (cenv[i]);

     (void) sleep (2);

     for (i = 0; i < 2; ++i)
     {
       if (cbc[i].pos != strlen ("/hello_world"))
       {
         MHD_stop_daemon (d);
         return 64;
       }
       if (0 != strncmp ("/hello_world", cbc[i].buf, strlen ("/hello_world")))
       {
         MHD_stop_daemon (d);
         return 128;
       }
     }


   }
   MHD_stop_daemon (d);
   return 0;
 }


 int
 main (int argc, char *const *argv)
 {
   unsigned int errorCount = 0;
   (void) argc;   /* Unused. Silent compiler warning. */

   if ((NULL == argv) || (0 == argv[0]))
     return 99;
   oneone = has_in_name (argv[0], "11");
   if (0 != curl_global_init (CURL_GLOBAL_WIN32))
     return 2;
   errorCount |= testMultithreadedGet ();
   errorCount |= testMultithreadedPoolGet ();
   if (errorCount != 0)
     fprintf (stderr, "Error (code: %u)\n", errorCount);
   curl_global_cleanup ();
   return (0 == errorCount) ? 0 : 1;       /* 0 == pass */
 }
	/*
	This file is part of libmicrohttpd
	Copyright (C) 2007 Christian Grothoff
	Copyright (C) 2014-2022 Evgeny Grin (Karlson2k)

	libmicrohttpd is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published
	by the Free Software Foundation; either version 2, or (at your
	option) any later version.

	libmicrohttpd is distributed in the hope that it will be useful, but
	WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with libmicrohttpd; see the file COPYING. If not, write to the
	Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
	Boston, MA 02110-1301, USA.
	*/

	/**
	* @file test_iplimit.c
	* @brief Testcase for libmicrohttpd limits per IP
	* @author Christian Grothoff
	* @author Karlson2k (Evgeny Grin)
	*/

	#include "MHD_config.h"
	#include "platform.h"
	#include <curl/curl.h>
	#include <microhttpd.h>
	#include <stdlib.h>
	#include <string.h>
	#include <time.h>
	#include "mhd_has_in_name.h"

	#ifndef WINDOWS
	#include <unistd.h>
	#endif

	#ifdef _WIN32
	#ifndef WIN32_LEAN_AND_MEAN
	#define WIN32_LEAN_AND_MEAN 1
	#endif /* !WIN32_LEAN_AND_MEAN */
	#include <windows.h>
	#endif

	#if defined(MHD_CPU_COUNT) && (MHD_CPU_COUNT + 0) < 2
	#undef MHD_CPU_COUNT
	#endif
	#if ! defined(MHD_CPU_COUNT)
	#define MHD_CPU_COUNT 2
	#endif

	static int oneone;

	struct CBC
	{
	char *buf;
	size_t pos;
	size_t size;
	};

	static size_t
	copyBuffer (void ptr, size_t size, size_t nmemb, void ctx)
	{
	struct CBC *cbc = ctx;

	if (cbc->pos + size * nmemb > cbc->size)
	return 0; /* overflow */
	memcpy (&cbc->buf[cbc->pos], ptr, size * nmemb);
	cbc->pos += size * nmemb;
	return size * nmemb;
	}


	static enum MHD_Result
	ahc_echo (void *cls,
	struct MHD_Connection *connection,
	const char *url,
	const char *method,
	const char *version,
	const char upload_data, size_t upload_data_size,
	void **req_cls)
	{
	static int ptr;
	struct MHD_Response *response;
	enum MHD_Result ret;
	(void) cls;
	(void) version; (void) upload_data; (void) upload_data_size; /* Unused. Silent compiler warning. */

	if (0 != strcmp (MHD_HTTP_METHOD_GET, method))
	return MHD_NO; /* unexpected method */
	if (&ptr != *req_cls)
	{
	*req_cls = &ptr;
	return MHD_YES;
	}
	*req_cls = NULL;
	response = MHD_create_response_from_buffer_copy (strlen (url),
	(const void *) url);
	ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
	MHD_destroy_response (response);
	if (ret == MHD_NO)
	abort ();
	return ret;
	}


	static unsigned int
	testMultithreadedGet (void)
	{
	struct MHD_Daemon *d;
	char buf[2048];
	int k;
	unsigned int success;
	unsigned int failure;
	uint16_t port;

	if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
	port = 0;
	else
	{
	port = 1260;
	if (oneone)
	port += 5;
	}

	/* Test only valid for HTTP/1.1 (uses persistent connections) */
	if (! oneone)
	return 0;

	d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD \| MHD_USE_ERROR_LOG,
	port, NULL, NULL,
	&ahc_echo, NULL,
	MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 2,
	MHD_OPTION_END);
	if (d == NULL)
	return 16;
	if (0 == port)
	{
	const union MHD_DaemonInfo *dinfo;
	dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
	if ((NULL == dinfo) \|\| (0 == dinfo->port) )
	{
	MHD_stop_daemon (d); return 32;
	}
	port = dinfo->port;
	}

	for (k = 0; k < 3; ++k)
	{
	struct CBC cbc[3];
	CURL *cenv[3];
	int i;

	success = 0;
	failure = 0;
	for (i = 0; i < 3; ++i)
	{
	CURL *c;
	CURLcode errornum;

	cenv[i] = c = curl_easy_init ();
	cbc[i].buf = buf;
	cbc[i].size = 2048;
	cbc[i].pos = 0;

	curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/hello_world");
	curl_easy_setopt (c, CURLOPT_PORT, (long) port);
	curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
	curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc[i]);
	curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
	curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
	curl_easy_setopt (c, CURLOPT_FORBID_REUSE, 0L);
	curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
	curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
	/* NOTE: use of CONNECTTIMEOUT without also
	* setting NOSIGNAL results in really weird
	* crashes on my system! */
	curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1L);

	errornum = curl_easy_perform (c);
	if (CURLE_OK == errornum)
	success++;
	else
	failure++;
	}

	/* Cleanup the environments */
	for (i = 0; i < 3; ++i)
	curl_easy_cleanup (cenv[i]);
	if ( (2 != success) \|\|
	(1 != failure) )
	{
	fprintf (stderr,
	"Unexpected number of success (%u) or failure (%u)\n",
	success,
	failure);
	MHD_stop_daemon (d);
	return 32;
	}

	(void) sleep (2);

	for (i = 0; i < 2; ++i)
	{
	if (cbc[i].pos != strlen ("/hello_world"))
	{
	MHD_stop_daemon (d);
	return 64;
	}
	if (0 != strncmp ("/hello_world", cbc[i].buf, strlen ("/hello_world")))
	{
	MHD_stop_daemon (d);
	return 128;
	}
	}
	}
	MHD_stop_daemon (d);
	return 0;
	}


	static unsigned int
	testMultithreadedPoolGet (void)
	{
	struct MHD_Daemon *d;
	char buf[2048];
	int k;
	uint16_t port;
	if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
	port = 0;
	else
	{
	port = 1261;
	if (oneone)
	port += 5;
	}

	/* Test only valid for HTTP/1.1 (uses persistent connections) */
	if (! oneone)
	return 0;

	d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD \| MHD_USE_ERROR_LOG,
	port, NULL, NULL, &ahc_echo, NULL,
	MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 2,
	MHD_OPTION_THREAD_POOL_SIZE, MHD_CPU_COUNT,
	MHD_OPTION_END);
	if (d == NULL)
	return 16;
	if (0 == port)
	{
	const union MHD_DaemonInfo *dinfo;
	dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
	if ((NULL == dinfo) \|\| (0 == dinfo->port) )
	{
	MHD_stop_daemon (d); return 32;
	}
	port = dinfo->port;
	}

	for (k = 0; k < 3; ++k)
	{
	struct CBC cbc[3];
	CURL *cenv[3];
	int i;

	for (i = 0; i < 3; ++i)
	{
	CURL *c;
	CURLcode errornum;

	cenv[i] = c = curl_easy_init ();
	cbc[i].buf = buf;
	cbc[i].size = 2048;
	cbc[i].pos = 0;

	curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/hello_world");
	curl_easy_setopt (c, CURLOPT_PORT, (long) port);
	curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
	curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc[i]);
	curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
	curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
	curl_easy_setopt (c, CURLOPT_FORBID_REUSE, 0L);
	curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
	curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
	/* NOTE: use of CONNECTTIMEOUT without also
	* setting NOSIGNAL results in really weird
	* crashes on my system! */
	curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1L);

	errornum = curl_easy_perform (c);
	if ( ( (CURLE_OK != errornum) && (i < 2) ) \|\|
	( (CURLE_OK == errornum) && (i == 2) ) )
	{
	int j;

	/* First 2 should succeed */
	if (i < 2)
	fprintf (stderr,
	"curl_easy_perform failed: `%s'\n",
	curl_easy_strerror (errornum));

	/* Last request should have failed */
	else
	fprintf (stderr,
	"No error on IP address over limit\n");

	for (j = 0; j < i; ++j)
	curl_easy_cleanup (cenv[j]);
	MHD_stop_daemon (d);
	return 32;
	}
	}

	/* Cleanup the environments */
	for (i = 0; i < 3; ++i)
	curl_easy_cleanup (cenv[i]);

	(void) sleep (2);

	for (i = 0; i < 2; ++i)
	{
	if (cbc[i].pos != strlen ("/hello_world"))
	{
	MHD_stop_daemon (d);
	return 64;
	}
	if (0 != strncmp ("/hello_world", cbc[i].buf, strlen ("/hello_world")))
	{
	MHD_stop_daemon (d);
	return 128;
	}
	}


	}
	MHD_stop_daemon (d);
	return 0;
	}


	int
	main (int argc, char const argv)
	{
	unsigned int errorCount = 0;
	(void) argc; /* Unused. Silent compiler warning. */

	if ((NULL == argv) \|\| (0 == argv[0]))
	return 99;
	oneone = has_in_name (argv[0], "11");
	if (0 != curl_global_init (CURL_GLOBAL_WIN32))
	return 2;
	errorCount \|= testMultithreadedGet ();
	errorCount \|= testMultithreadedPoolGet ();
	if (errorCount != 0)
	fprintf (stderr, "Error (code: %u)\n", errorCount);
	curl_global_cleanup ();
	return (0 == errorCount) ? 0 : 1; /* 0 == pass */
	}