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   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  Data Differential YATL (i.e. libtest)  library
   4  *
   5  *  Copyright (C) 2012 Data Differential, http://datadifferential.com/
   6  *
   7  *  Redistribution and use in source and binary forms, with or without
   8  *  modification, are permitted provided that the following conditions are
   9  *  met:
  10  *
  11  *      * Redistributions of source code must retain the above copyright
  12  *  notice, this list of conditions and the following disclaimer.
  13  *
  14  *      * Redistributions in binary form must reproduce the above
  15  *  copyright notice, this list of conditions and the following disclaimer
  16  *  in the documentation and/or other materials provided with the
  17  *  distribution.
  18  *
  19  *      * The names of its contributors may not be used to endorse or
  20  *  promote products derived from this software without specific prior
  21  *  written permission.
  22  *
  23  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  24  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  25  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  26  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  27  *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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  33  *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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  35  */
  36
  37 #include <config.h>
  38 #include <libtest/common.h>
  39
  40 #include <libmemcached-1.0/memcached.h>
  41 #include <libmemcachedutil-1.0/util.h>
  42
  43 using namespace libtest;
  44
  45 #include <cassert>
  46 #include <cerrno>
  47 #include <cstdio>
  48 #include <cstdlib>
  49 #include <cstring>
  50 #include <iostream>
  51 #include <signal.h>
  52 #include <sys/types.h>
  53 #include <sys/wait.h>
  54 #include <unistd.h>
  55
  56 #include <libtest/server.h>
  57 #include <libtest/wait.h>
  58
  59 #include <libtest/memcached.h>
  60
  61 #ifndef __INTEL_COMPILER
  62 #pragma GCC diagnostic ignored "-Wold-style-cast"
  63 #endif
  64
  65 using namespace libtest;
  66
  67 namespace {
  68   bool is_memcached_libtool()
  69   {
  70     if (MEMCACHED_BINARY and strcmp(MEMCACHED_BINARY, "memcached/memcached") == 0)
  71     {
  72       return true;
  73     }
  74
  75     return false;
  76   }
  77 }
  78
  79 class Memcached : public libtest::Server
  80 {
  81   std::string _username;
  82   std::string _password;
  83
  84 public:
  85   Memcached(const std::string& host_arg,
  86             const in_port_t port_arg,
  87             const bool is_socket_arg,
  88             const std::string& username_arg,
  89             const std::string& password_arg) :
  90     libtest::Server(host_arg, port_arg,
  91                     MEMCACHED_BINARY, is_memcached_libtool(), is_socket_arg),
  92     _username(username_arg),
  93     _password(password_arg)
  94   { }
  95
  96   Memcached(const std::string& host_arg, const in_port_t port_arg, const bool is_socket_arg) :
  97     libtest::Server(host_arg, port_arg,
  98                     MEMCACHED_BINARY, is_memcached_libtool(), is_socket_arg)
  99   {
 100     set_pid_file();
 101   }
 102
 103   virtual const char *sasl() const
 104   {
 105     return NULL;
 106   }
 107
 108   const std::string& password() const
 109   {
 110     return _password;
 111   }
 112
 113   const std::string& username() const
 114   {
 115     return _username;
 116   }
 117
 118   bool wait_for_pidfile() const
 119   {
 120     Wait wait(pid(), 4);
 121
 122     return wait.successful();
 123   }
 124
 125   bool ping()
 126   {
 127 #if 0
 128     // Memcached is slow to start, so we need to do this
 129     if (pid_file().empty() == false)
 130     {
 131       if (wait_for_pidfile() == false)
 132       {
 133         Error << "Pidfile was not found:" << pid_file() << " :" << running();
 134         return -1;
 135       }
 136     }
 137 #endif
 138
 139     memcached_return_t rc;
 140     bool ret;
 141
 142     if (has_socket())
 143     {
 144       ret= libmemcached_util_ping(socket().c_str(), 0, &rc);
 145     }
 146     else
 147     {
 148       ret= libmemcached_util_ping(hostname().c_str(), port(), &rc);
 149     }
 150
 151     if (memcached_failed(rc) or ret == false)
 152     {
 153       Error << "libmemcached_util_ping(" << hostname() << ", " << port() << ") error: " << memcached_strerror(NULL, rc);
 154     }
 155
 156     return ret;
 157   }
 158
 159   const char *name()
 160   {
 161     return "memcached";
 162   };
 163
 164   const char *executable()
 165   {
 166     return MEMCACHED_BINARY;
 167   }
 168
 169   bool is_libtool()
 170   {
 171     return is_memcached_libtool();
 172   }
 173
 174   virtual void pid_file_option(Application& app, const std::string& arg)
 175   {
 176     if (arg.empty() == false)
 177     {
 178       app.add_option("-P", arg);
 179     }
 180   }
 181
 182   const char *socket_file_option() const
 183   {
 184     return "-s ";
 185   }
 186
 187   virtual void port_option(Application& app, in_port_t arg)
 188   {
 189     char buffer[30];
 190     snprintf(buffer, sizeof(buffer), "%d", int(arg));
 191     app.add_option("-p", buffer);
 192   }
 193
 194   bool has_port_option() const
 195   {
 196     return true;
 197   }
 198
 199   bool has_socket_file_option() const
 200   {
 201     return has_socket();
 202   }
 203
 204   void socket_file_option(Application& app, const std::string& socket_arg)
 205   {
 206     if (socket_arg.empty() == false)
 207     {
 208       app.add_option("-s", socket_arg);
 209     }
 210   }
 211
 212   bool broken_socket_cleanup()
 213   {
 214     return true;
 215   }
 216
 217   // Memcached's pidfile is broken
 218   bool broken_pid_file()
 219   {
 220     return true;
 221   }
 222
 223   bool build(size_t argc, const char *argv[]);
 224 };
 225
 226 class MemcachedLight : public libtest::Server
 227 {
 228
 229 public:
 230   MemcachedLight(const std::string& host_arg, const in_port_t port_arg) :
 231     libtest::Server(host_arg, port_arg, MEMCACHED_LIGHT_BINARY, true)
 232   {
 233     set_pid_file();
 234   }
 235
 236   bool ping()
 237   {
 238     // Memcached is slow to start, so we need to do this
 239     if (not pid_file().empty())
 240     {
 241       if (not wait_for_pidfile())
 242       {
 243         Error << "Pidfile was not found:" << pid_file();
 244         return false;
 245       }
 246     }
 247
 248     std::stringstream error_message;
 249     pid_t local_pid= get_pid_from_file(pid_file(), error_message);
 250     if (local_pid > 0)
 251     {
 252       if (::kill(local_pid, 0) == 0)
 253       {
 254         return true;
 255       }
 256     }
 257
 258     return false;
 259   }
 260
 261   const char *name()
 262   {
 263     return "memcached_light";
 264   };
 265
 266   const char *executable()
 267   {
 268     return MEMCACHED_LIGHT_BINARY;
 269   }
 270
 271   virtual void port_option(Application& app, in_port_t arg)
 272   {
 273     char buffer[1024];
 274     snprintf(buffer, sizeof(buffer), "--port=%d", int(arg));
 275     app.add_option(buffer);
 276   }
 277
 278   bool has_port_option() const
 279   {
 280     return true;
 281   }
 282
 283   bool is_libtool()
 284   {
 285     return true;
 286   }
 287
 288   void log_file_option(Application& app, const std::string& arg)
 289   {
 290     if (arg.empty() == false)
 291     {
 292       std::string buffer("--log-file=");
 293       buffer+= arg;
 294       app.add_option("--verbose");
 295       app.add_option(buffer);
 296     }
 297   }
 298
 299   bool has_log_file_option() const
 300   {
 301     return true;
 302   }
 303
 304   bool build(size_t argc, const char *argv[]);
 305 };
 306
 307 class MemcachedSaSL : public Memcached
 308 {
 309 public:
 310   MemcachedSaSL(const std::string& host_arg,
 311                 const in_port_t port_arg,
 312                 const bool is_socket_arg,
 313                 const std::string& username_arg,
 314                 const std::string &password_arg) :
 315     Memcached(host_arg, port_arg, is_socket_arg, username_arg, password_arg)
 316   { }
 317
 318   const char *name()
 319   {
 320     return "memcached-sasl";
 321   };
 322
 323   const char *sasl() const
 324   {
 325     return " -S -B binary ";
 326   }
 327
 328   const char *executable()
 329   {
 330     return MEMCACHED_SASL_BINARY;
 331   }
 332
 333   bool ping()
 334   {
 335     // Memcached is slow to start, so we need to do this
 336     if (pid_file().empty() == false)
 337     {
 338       if (wait_for_pidfile() == false)
 339       {
 340         Error << "Pidfile was not found:" << pid_file();
 341         return -1;
 342       }
 343     }
 344
 345     memcached_return_t rc;
 346     bool ret;
 347
 348     if (has_socket())
 349     {
 350       ret= libmemcached_util_ping2(socket().c_str(), 0, username().c_str(), password().c_str(), &rc);
 351     }
 352     else
 353     {
 354       ret= libmemcached_util_ping2(hostname().c_str(), port(), username().c_str(), password().c_str(), &rc);
 355     }
 356
 357     if (memcached_failed(rc) or ret == false)
 358     {
 359       Error << "libmemcached_util_ping2(" << hostname() << ", " << port() << ", " << username() << ", " << password() << ") error: " << memcached_strerror(NULL, rc);
 360     }
 361
 362     return ret;
 363   }
 364
 365 };
 366
 367
 368 #include <sstream>
 369
 370 bool Memcached::build(size_t argc, const char *argv[])
 371 {
 372   if (getuid() == 0 or geteuid() == 0)
 373   {
 374     add_option("-u", "root");
 375   }
 376
 377   add_option("-l", "localhost");
 378   add_option("-m", "128");
 379   add_option("-M");
 380
 381   if (sasl())
 382   {
 383     add_option(sasl());
 384   }
 385
 386   for (int x= 0 ; x < argc ; x++)
 387   {
 388     add_option(argv[x]);
 389   }
 390
 391   return true;
 392 }
 393
 394 bool MemcachedLight::build(size_t argc, const char *argv[])
 395 {
 396   for (size_t x= 0 ; x < argc ; x++)
 397   {
 398     add_option(argv[x]);
 399   }
 400
 401   return true;
 402 }
 403
 404 namespace libtest {
 405
 406 libtest::Server *build_memcached(const std::string& hostname, const in_port_t try_port)
 407 {
 408   return new Memcached(hostname, try_port, false);
 409 }
 410
 411 libtest::Server *build_memcached_socket(const std::string& socket_file, const in_port_t try_port)
 412 {
 413   return new Memcached(socket_file, try_port, true);
 414 }
 415
 416 libtest::Server *build_memcached_light(const std::string& hostname, const in_port_t try_port)
 417 {
 418   return new MemcachedLight(hostname, try_port);
 419 }
 420
 421
 422 libtest::Server *build_memcached_sasl(const std::string& hostname, const in_port_t try_port, const std::string& username, const std::string &password)
 423 {
 424   if (username.empty())
 425   {
 426     return new MemcachedSaSL(hostname, try_port, false,  "memcached", "memcached");
 427   }
 428
 429   return new MemcachedSaSL(hostname, try_port, false,  username, password);
 430 }
 431
 432 libtest::Server *build_memcached_sasl_socket(const std::string& socket_file, const in_port_t try_port, const std::string& username, const std::string &password)
 433 {
 434   if (username.empty())
 435   {
 436     return new MemcachedSaSL(socket_file, try_port, true, "memcached", "memcached");
 437   }
 438
 439   return new MemcachedSaSL(socket_file, try_port, true, username, password);
 440 }
 441
 442 }
 443