src/filter_log.cpp

   1 /* This file is part of Metaproxy.
   2    Copyright (C) 2005-2012 Index Data
   3
   4 Metaproxy is free software; you can redistribute it and/or modify it under
   5 the terms of the GNU General Public License as published by the Free
   6 Software Foundation; either version 2, or (at your option) any later
   7 version.
   8
   9 Metaproxy is distributed in the hope that it will be useful, but WITHOUT ANY
  10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12 for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program; if not, write to the Free Software
  16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17 */
  18
  19 #include "config.hpp"
  20 #include "filter_log.hpp"
  21 #include <metaproxy/package.hpp>
  22
  23 #include <string>
  24 #include <sstream>
  25 #include <iomanip>
  26 #include <boost/thread/mutex.hpp>
  27
  28 #include "gduutil.hpp"
  29 #include <metaproxy/util.hpp>
  30 #include <metaproxy/xmlutil.hpp>
  31
  32 #include <yaz/zgdu.h>
  33 #include <yaz/wrbuf.h>
  34 #include <yaz/log.h>
  35 #include <yaz/querytowrbuf.h>
  36 #include <yaz/timing.h>
  37 #include <stdio.h>
  38 #include <time.h>
  39
  40 namespace mp = metaproxy_1;
  41 namespace yf = metaproxy_1::filter;
  42
  43 namespace metaproxy_1 {
  44     namespace filter {
  45         class Log::Impl {
  46         public:
  47             class LFile;
  48             typedef boost::shared_ptr<Log::Impl::LFile> LFilePtr;
  49         public:
  50             //Impl();
  51             Impl(const std::string &x = "-");
  52            ~Impl();
  53             void process(metaproxy_1::Package & package);
  54             void configure(const xmlNode * ptr);
  55         private:
  56             void openfile(const std::string &fname);
  57             // needs to be static to be called by C pointer-to-function-syntax
  58             static void stream_write(ODR o, void *handle, int type,
  59                               const char *buf, int len);
  60             // needs to be static to be called by C pointer-to-function-syntax
  61             static void option_write(const char *name, void *handle);
  62         private:
  63             std::string m_msg_config;
  64             bool m_1line;
  65             bool m_access;
  66             bool m_user_access;
  67             bool m_req_apdu;
  68             bool m_res_apdu;
  69             bool m_req_session;
  70             bool m_res_session;
  71             bool m_init_options;
  72             LFilePtr m_file;
  73             std::string m_time_format;
  74             // Only used during confiqgure stage (no threading),
  75             // for performance avoid opening files which other log filter
  76             // instances already have opened
  77             static std::list<LFilePtr> filter_log_files;
  78
  79             boost::mutex m_session_mutex;
  80             std::map<mp::Session, std::string> m_sessions;
  81        };
  82
  83         class Log::Impl::LFile {
  84         public:
  85             boost::mutex m_mutex;
  86             std::string m_fname;
  87             FILE *fhandle;
  88             ~LFile();
  89             LFile(std::string fname);
  90             LFile(std::string fname, FILE *outf);
  91             void log(const std::string &date_format,
  92                      std::ostringstream &os);
  93             void flush();
  94         };
  95
  96     }
  97 }
  98
  99 // define Pimpl wrapper forwarding to Impl
 100
 101 yf::Log::Log() : m_p(new Impl)
 102 {
 103 }
 104
 105 yf::Log::Log(const std::string &x) : m_p(new Impl(x))
 106 {
 107 }
 108
 109 yf::Log::~Log()
 110 {  // must have a destructor because of boost::scoped_ptr
 111 }
 112
 113 void yf::Log::configure(const xmlNode *xmlnode, bool test_only,
 114                         const char *path)
 115 {
 116     m_p->configure(xmlnode);
 117 }
 118
 119 void yf::Log::process(mp::Package &package) const
 120 {
 121     m_p->process(package);
 122 }
 123
 124
 125 // static initialization
 126 std::list<yf::Log::Impl::LFilePtr> yf::Log::Impl::filter_log_files;
 127
 128
 129 yf::Log::Impl::Impl(const std::string &x)
 130     : m_msg_config(x),
 131       m_1line(false),
 132       m_access(true),
 133       m_user_access(false),
 134       m_req_apdu(false),
 135       m_res_apdu(false),
 136       m_req_session(false),
 137       m_res_session(false),
 138       m_init_options(false),
 139       m_time_format("%H:%M:%S-%d/%m")
 140 {
 141     openfile("");
 142 }
 143
 144
 145 yf::Log::Impl::~Impl()
 146 {
 147 }
 148
 149 static void log_DefaultDiagFormat(WRBUF w, Z_DefaultDiagFormat *e)
 150 {
 151     if (e->condition)
 152         wrbuf_printf(w, ODR_INT_PRINTF " ",*e->condition);
 153     else
 154         wrbuf_puts(w, "?? ");
 155     if (e->which == Z_DefaultDiagFormat_v2Addinfo && e->u.v2Addinfo)
 156         wrbuf_puts(w, e->u.v2Addinfo);
 157     else if (e->which == Z_DefaultDiagFormat_v3Addinfo && e->u.v3Addinfo)
 158         wrbuf_puts(w, e->u.v3Addinfo);
 159 }
 160
 161 static void log_DiagRecs(WRBUF w, int num_diagRecs, Z_DiagRec **diags)
 162 {
 163     if (diags[0]->which != Z_DiagRec_defaultFormat)
 164         wrbuf_puts(w ,"(diag not in default format?)");
 165     else
 166     {
 167         Z_DefaultDiagFormat *e = diags[0]->u.defaultFormat;
 168         log_DefaultDiagFormat(w, e);
 169     }
 170 }
 171
 172 static void log_1_line(Z_APDU *z_req, Z_APDU *z_res, WRBUF w)
 173 {
 174     switch (z_req->which)
 175     {
 176     case Z_APDU_initRequest:
 177         if (z_res->which == Z_APDU_initResponse)
 178         {
 179             Z_InitRequest *req = z_req->u.initRequest;
 180             Z_InitResponse *res = z_res->u.initResponse;
 181             wrbuf_printf(w, "Init ");
 182             if (res->result && *res->result)
 183                 wrbuf_printf(w, "OK -");
 184             else
 185             {
 186                 Z_External *uif = res->userInformationField;
 187                 bool got_code = false;
 188                 wrbuf_printf(w, "ERROR ");
 189                 if (uif && uif->which == Z_External_userInfo1)
 190                 {
 191                     Z_OtherInformation *ui = uif->u.userInfo1;
 192                     if (ui->num_elements >= 1)
 193                     {
 194                         Z_OtherInformationUnit *unit = ui->list[0];
 195                         if (unit->which == Z_OtherInfo_externallyDefinedInfo &&
 196                             unit->information.externallyDefinedInfo &&
 197                             unit->information.externallyDefinedInfo->which ==
 198                             Z_External_diag1)
 199                         {
 200                             Z_DiagnosticFormat *diag =
 201                                 unit->information.externallyDefinedInfo->
 202                                 u.diag1;
 203                             if (diag->num >= 1)
 204                             {
 205                                 Z_DiagnosticFormat_s *ds = diag->elements[0];
 206                                 if (ds->which ==
 207                                     Z_DiagnosticFormat_s_defaultDiagRec)
 208                                 {
 209                                     log_DefaultDiagFormat(w,
 210                                                           ds->u.defaultDiagRec);
 211                                     got_code = true;
 212                                 }
 213                             }
 214
 215                         }
 216                     }
 217                 }
 218                 if (!got_code)
 219                     wrbuf_puts(w, "-");
 220             }
 221             wrbuf_printf(w, " ID:%s Name:%s Version:%s",
 222                          req->implementationId ? req->implementationId :"-",
 223                          req->implementationName ?req->implementationName : "-",
 224                          req->implementationVersion ?
 225                          req->implementationVersion : "-");
 226         }
 227         break;
 228     case Z_APDU_searchRequest:
 229         if (z_res->which == Z_APDU_searchResponse)
 230         {
 231             Z_SearchRequest *req = z_req->u.searchRequest;
 232             Z_SearchResponse *res = z_res->u.searchResponse;
 233             int i;
 234             wrbuf_puts(w, "Search ");
 235             for (i = 0 ; i < req->num_databaseNames; i++)
 236             {
 237                 if (i)
 238                     wrbuf_printf(w, "+");
 239                 wrbuf_puts(w, req->databaseNames[i]);
 240             }
 241             wrbuf_printf(w, " ");
 242             if (!res->records)
 243             {
 244                 wrbuf_printf(w, "OK " ODR_INT_PRINTF " %s", *res->resultCount,
 245                              req->resultSetName);
 246             }
 247             else if (res->records->which == Z_Records_DBOSD)
 248             {
 249                 wrbuf_printf(w, "OK " ODR_INT_PRINTF " %s", *res->resultCount,
 250                              req->resultSetName);
 251             }
 252             else if (res->records->which == Z_Records_NSD)
 253             {
 254                 wrbuf_puts(w, "ERROR ");
 255                 log_DefaultDiagFormat(w,
 256                                       res->records->u.nonSurrogateDiagnostic);
 257             }
 258             else if (res->records->which == Z_Records_multipleNSD)
 259             {
 260                 wrbuf_puts(w, "ERROR ");
 261                 log_DiagRecs(
 262                     w,
 263                     res->records->u.multipleNonSurDiagnostics->num_diagRecs,
 264                     res->records->u.multipleNonSurDiagnostics->diagRecs);
 265             }
 266             wrbuf_printf(w, " 1+" ODR_INT_PRINTF " ",
 267                          res->numberOfRecordsReturned
 268                          ? *res->numberOfRecordsReturned : 0);
 269             yaz_query_to_wrbuf(w, req->query);
 270         }
 271         break;
 272     case Z_APDU_presentRequest:
 273         if (z_res->which == Z_APDU_presentResponse)
 274         {
 275             Z_PresentRequest *req = z_req->u.presentRequest;
 276             Z_PresentResponse *res = z_res->u.presentResponse;
 277
 278             wrbuf_printf(w, "Present ");
 279
 280             if (!res->records)
 281             {
 282                 wrbuf_printf(w, "OK");
 283             }
 284             else if (res->records->which == Z_Records_DBOSD)
 285             {
 286                 wrbuf_printf(w, "OK");
 287             }
 288             else if (res->records->which == Z_Records_NSD)
 289             {
 290                 wrbuf_puts(w, "ERROR ");
 291                 log_DefaultDiagFormat(w,
 292                                       res->records->u.nonSurrogateDiagnostic);
 293             }
 294             else if (res->records->which == Z_Records_multipleNSD)
 295             {
 296                 wrbuf_puts(w, "ERROR ");
 297                 log_DiagRecs(
 298                     w,
 299                     res->records->u.multipleNonSurDiagnostics->num_diagRecs,
 300                     res->records->u.multipleNonSurDiagnostics->diagRecs);
 301             }
 302             wrbuf_printf(w, " %s " ODR_INT_PRINTF "+" ODR_INT_PRINTF " ",
 303                 req->resultSetId, *req->resultSetStartPoint,
 304                          *req->numberOfRecordsRequested);
 305         }
 306         break;
 307     case Z_APDU_scanRequest:
 308         if (z_res->which == Z_APDU_scanResponse)
 309         {
 310             Z_ScanRequest *req = z_req->u.scanRequest;
 311             Z_ScanResponse *res = z_res->u.scanResponse;
 312             int i;
 313             wrbuf_printf(w, "Scan ");
 314             for (i = 0 ; i < req->num_databaseNames; i++)
 315             {
 316                 if (i)
 317                     wrbuf_printf(w, "+");
 318                 wrbuf_puts(w, req->databaseNames[i]);
 319             }
 320             wrbuf_puts(w, " ");
 321             if (!res->scanStatus || *res->scanStatus == 0)
 322                 wrbuf_puts(w, "OK");
 323             else if (*res->scanStatus == 6)
 324                 wrbuf_puts(w, "FAIL");
 325             else
 326                 wrbuf_printf(w, "PARTIAL" ODR_INT_PRINTF, *res->scanStatus);
 327
 328             wrbuf_printf(w, " " ODR_INT_PRINTF " " ODR_INT_PRINTF "+"
 329                          ODR_INT_PRINTF "+" ODR_INT_PRINTF " ",
 330                          res->numberOfEntriesReturned ?
 331                          *res->numberOfEntriesReturned : 0,
 332                          req->preferredPositionInResponse ?
 333                           *req->preferredPositionInResponse : 1,
 334                          *req->numberOfTermsRequested,
 335                          res->stepSize ? *res->stepSize : 1);
 336
 337             yaz_scan_to_wrbuf(w, req->termListAndStartPoint,
 338                               req->attributeSet);
 339         }
 340         break;
 341     default:
 342         wrbuf_printf(w, "REQ=%d RES=%d", z_req->which, z_res->which);
 343     }
 344 }
 345
 346 void yf::Log::Impl::configure(const xmlNode *ptr)
 347 {
 348     for (ptr = ptr->children; ptr; ptr = ptr->next)
 349     {
 350         if (ptr->type != XML_ELEMENT_NODE)
 351             continue;
 352         if (!strcmp((const char *) ptr->name, "message"))
 353             m_msg_config = mp::xml::get_text(ptr);
 354         else if (!strcmp((const char *) ptr->name, "filename"))
 355         {
 356             std::string fname = mp::xml::get_text(ptr);
 357             openfile(fname);
 358         }
 359         else if (!strcmp((const char *) ptr->name, "time-format"))
 360         {
 361             m_time_format = mp::xml::get_text(ptr);
 362         }
 363         else if (!strcmp((const char *) ptr->name, "category"))
 364         {
 365             const struct _xmlAttr *attr;
 366             for (attr = ptr->properties; attr; attr = attr->next)
 367             {
 368                 if (!strcmp((const char *) attr->name,  "line"))
 369                     m_1line = mp::xml::get_bool(attr->children, true);
 370                 else if (!strcmp((const char *) attr->name,  "access"))
 371                     m_access = mp::xml::get_bool(attr->children, true);
 372                 else if (!strcmp((const char *) attr->name, "user-access"))
 373                     m_user_access = mp::xml::get_bool(attr->children, true);
 374                 else if (!strcmp((const char *) attr->name, "request-apdu"))
 375                     m_req_apdu = mp::xml::get_bool(attr->children, true);
 376                 else if (!strcmp((const char *) attr->name, "response-apdu"))
 377                     m_res_apdu = mp::xml::get_bool(attr->children, true);
 378                 else if (!strcmp((const char *) attr->name, "apdu"))
 379                 {
 380                     m_req_apdu = mp::xml::get_bool(attr->children, true);
 381                     m_res_apdu = m_req_apdu;
 382                 }
 383                 else if (!strcmp((const char *) attr->name,
 384                                  "request-session"))
 385                     m_req_session =
 386                         mp::xml::get_bool(attr->children, true);
 387                 else if (!strcmp((const char *) attr->name,
 388                                  "response-session"))
 389                     m_res_session =
 390                         mp::xml::get_bool(attr->children, true);
 391                 else if (!strcmp((const char *) attr->name,
 392                                  "session"))
 393                 {
 394                     m_req_session =
 395                         mp::xml::get_bool(attr->children, true);
 396                     m_res_session = m_req_session;
 397                 }
 398                 else if (!strcmp((const char *) attr->name,
 399                                  "init-options"))
 400                     m_init_options =
 401                         mp::xml::get_bool(attr->children, true);
 402                 else if (!strcmp((const char *) attr->name,
 403                                  "init-options"))
 404                     m_init_options =
 405                         mp::xml::get_bool(attr->children, true);
 406                 else
 407                     throw mp::filter::FilterException(
 408                         "Bad attribute " + std::string((const char *)
 409                                                        attr->name));
 410             }
 411         }
 412         else
 413         {
 414             throw mp::filter::FilterException("Bad element "
 415                                                + std::string((const char *)
 416                                                              ptr->name));
 417         }
 418     }
 419 }
 420
 421 void yf::Log::Impl::process(mp::Package &package)
 422 {
 423     Z_GDU *gdu_req = package.request().get();
 424     std::string user("-");
 425
 426     yaz_timing_t timer = yaz_timing_create();
 427
 428     // scope for session lock
 429     {
 430         boost::mutex::scoped_lock scoped_lock(m_session_mutex);
 431
 432         if (gdu_req && gdu_req->which == Z_GDU_Z3950)
 433         {
 434             Z_APDU *apdu_req = gdu_req->u.z3950;
 435             if (apdu_req->which == Z_APDU_initRequest)
 436             {
 437                 Z_InitRequest *req = apdu_req->u.initRequest;
 438                 Z_IdAuthentication *a = req->idAuthentication;
 439                 if (a)
 440                 {
 441                     if (a->which == Z_IdAuthentication_idPass)
 442                         user = a->u.idPass->userId;
 443                     else if (a->which == Z_IdAuthentication_open)
 444                         user = a->u.open;
 445
 446                     m_sessions[package.session()] = user;
 447                 }
 448             }
 449         }
 450         std::map<mp::Session,std::string>::iterator it =
 451             m_sessions.find(package.session());
 452         if (it != m_sessions.end())
 453             user = it->second;
 454
 455         if (package.session().is_closed())
 456             m_sessions.erase(package.session());
 457     }
 458     // scope for locking Ostream
 459     {
 460         boost::mutex::scoped_lock scoped_lock(m_file->m_mutex);
 461
 462         if (m_access)
 463         {
 464             if (gdu_req)
 465             {
 466                 std::ostringstream os;
 467                 os  << m_msg_config << " "
 468                     << package << " "
 469                     << "0.000000" << " "
 470                     << *gdu_req;
 471                 m_file->log(m_time_format, os);
 472             }
 473         }
 474
 475         if (m_user_access)
 476         {
 477             if (gdu_req)
 478             {
 479                 std::ostringstream os;
 480                 os  << m_msg_config << " " << user << " "
 481                     << package << " "
 482                     << "0.000000" << " "
 483                     << *gdu_req;
 484                 m_file->log(m_time_format, os);
 485             }
 486         }
 487
 488         if (m_req_session)
 489         {
 490             std::ostringstream os;
 491             os << m_msg_config;
 492             os << " request id=" << package.session().id();
 493             os << " close="
 494                << (package.session().is_closed() ? "yes" : "no");
 495             m_file->log(m_time_format, os);
 496         }
 497
 498         if (m_init_options)
 499         {
 500             if (gdu_req && gdu_req->which == Z_GDU_Z3950 &&
 501                 gdu_req->u.z3950->which == Z_APDU_initRequest)
 502             {
 503                 std::ostringstream os;
 504                 os << m_msg_config << " init options:";
 505                 yaz_init_opt_decode(gdu_req->u.z3950->u.initRequest->options,
 506                                     option_write, &os);
 507                 m_file->log(m_time_format, os);
 508             }
 509         }
 510
 511         if (m_req_apdu)
 512         {
 513             if (gdu_req)
 514             {
 515                 mp::odr odr(ODR_PRINT);
 516                 odr_set_stream(odr, m_file->fhandle, stream_write, 0);
 517                 z_GDU(odr, &gdu_req, 0, 0);
 518             }
 519         }
 520     }
 521
 522     // unlocked during move
 523     package.move();
 524
 525     Z_GDU *gdu_res = package.response().get();
 526
 527     yaz_timing_stop(timer);
 528     double duration = yaz_timing_get_real(timer);
 529
 530     // scope for locking Ostream
 531     {
 532         boost::mutex::scoped_lock scoped_lock(m_file->m_mutex);
 533
 534         if (m_1line)
 535         {
 536             if (gdu_req && gdu_res && gdu_req->which == Z_GDU_Z3950
 537                 && gdu_res->which == Z_GDU_Z3950)
 538             {
 539                 mp::wrbuf w;
 540
 541                 log_1_line(gdu_req->u.z3950, gdu_res->u.z3950, w);
 542                 const char *message = wrbuf_cstr(w);
 543
 544                 std::ostringstream os;
 545                 os  << m_msg_config << " "
 546                     << package << " "
 547                     << std::fixed << std::setprecision (6) << duration
 548                     << " "
 549                     << message;
 550                 m_file->log(m_time_format, os);
 551             }
 552         }
 553
 554         if (m_access)
 555         {
 556             if (gdu_res)
 557             {
 558                 std::ostringstream os;
 559                 os  << m_msg_config << " "
 560                     << package << " "
 561                     << std::fixed << std::setprecision (6) << duration
 562                     << " "
 563                     << *gdu_res;
 564                 m_file->log(m_time_format, os);
 565             }
 566         }
 567         if (m_user_access)
 568         {
 569             if (gdu_res)
 570             {
 571                 std::ostringstream os;
 572                 os  << m_msg_config << " " << user << " "
 573                     << package << " "
 574                     << std::fixed << std::setprecision (6) << duration << " "
 575                     << *gdu_res;
 576                 m_file->log(m_time_format, os);
 577             }
 578         }
 579
 580         if (m_res_session)
 581         {
 582             std::ostringstream os;
 583             os << m_msg_config;
 584             os << " response id=" << package.session().id();
 585             os << " close="
 586                << (package.session().is_closed() ? "yes " : "no ")
 587                << "duration="
 588                << std::fixed << std::setprecision (6) << duration;
 589             m_file->log(m_time_format, os);
 590         }
 591
 592         if (m_init_options)
 593         {
 594             if (gdu_res && gdu_res->which == Z_GDU_Z3950 &&
 595                 gdu_res->u.z3950->which == Z_APDU_initResponse)
 596             {
 597                 std::ostringstream os;
 598                 os << m_msg_config;
 599                 os << " init options:";
 600                 yaz_init_opt_decode(gdu_res->u.z3950->u.initResponse->options,
 601                                     option_write, &os);
 602                 m_file->log(m_time_format, os);
 603             }
 604         }
 605
 606         if (m_res_apdu)
 607         {
 608             if (gdu_res)
 609             {
 610                 mp::odr odr(ODR_PRINT);
 611                 odr_set_stream(odr, m_file->fhandle, stream_write, 0);
 612                 z_GDU(odr, &gdu_res, 0, 0);
 613             }
 614         }
 615     }
 616     m_file->flush();
 617     yaz_timing_destroy(&timer);
 618 }
 619
 620
 621 void yf::Log::Impl::openfile(const std::string &fname)
 622 {
 623     std::list<LFilePtr>::const_iterator it
 624         = filter_log_files.begin();
 625     for (; it != filter_log_files.end(); it++)
 626     {
 627         if ((*it)->m_fname == fname)
 628         {
 629             m_file = *it;
 630             return;
 631         }
 632     }
 633     LFilePtr newfile(new LFile(fname));
 634     filter_log_files.push_back(newfile);
 635     m_file = newfile;
 636 }
 637
 638
 639 void yf::Log::Impl::stream_write(ODR o, void *handle, int type, const char *buf, int len)
 640 {
 641     FILE *f = (FILE*) handle;
 642     fwrite(buf, len, 1, f ? f : yaz_log_file());
 643 }
 644
 645 void yf::Log::Impl::option_write(const char *name, void *handle)
 646 {
 647     std::ostringstream *os = (std::ostringstream *) handle;
 648     *os << " " << name;
 649 }
 650
 651
 652 yf::Log::Impl::LFile::LFile(std::string fname) :
 653     m_fname(fname)
 654
 655 {
 656     if (fname.c_str())
 657         fhandle = fopen(fname.c_str(), "a");
 658     else
 659         fhandle = 0;
 660 }
 661
 662 yf::Log::Impl::LFile::~LFile()
 663 {
 664 }
 665
 666 void yf::Log::Impl::LFile::log(const std::string &date_format,
 667                                std::ostringstream &os)
 668 {
 669     if (fhandle)
 670     {
 671         char datestr[80];
 672         time_t ti = time(0);
 673 #if HAVE_LOCALTIME_R
 674         struct tm tm0, *tm = &tm0;
 675         localtime_r(&ti, tm);
 676 #else
 677         struct tm *tm = localtime(&ti);
 678 #endif
 679         if (strftime(datestr, sizeof(datestr)-1, date_format.c_str(), tm))
 680         {
 681             fputs(datestr, fhandle);
 682             fputs(" ", fhandle);
 683         }
 684         fputs(os.str().c_str(), fhandle);
 685         fputc('\n', fhandle);
 686     }
 687     else
 688         yaz_log(YLOG_LOG, "%s", os.str().c_str());
 689 }
 690
 691 void yf::Log::Impl::LFile::flush()
 692 {
 693     if (fhandle)
 694         fflush(fhandle);
 695 }
 696
 697 static mp::filter::Base* filter_creator()
 698 {
 699     return new mp::filter::Log;
 700 }
 701
 702 extern "C" {
 703     struct metaproxy_1_filter_struct metaproxy_1_filter_log = {
 704         0,
 705         "log",
 706         filter_creator
 707     };
 708 }
 709
 710 /*
 711  * Local variables:
 712  * c-basic-offset: 4
 713  * c-file-style: "Stroustrup"
 714  * indent-tabs-mode: nil
 715  * End:
 716  * vim: shiftwidth=4 tabstop=8 expandtab
 717  */
 718