src/filter_log.cpp

   1 /* This file is part of Metaproxy.
   2    Copyright (C) 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/oid_db.h>
  33 #include <yaz/zgdu.h>
  34 #include <yaz/wrbuf.h>
  35 #include <yaz/log.h>
  36 #include <yaz/querytowrbuf.h>
  37 #include <yaz/timing.h>
  38 #include <stdio.h>
  39 #include <time.h>
  40
  41 namespace mp = metaproxy_1;
  42 namespace yf = metaproxy_1::filter;
  43
  44 namespace metaproxy_1 {
  45     namespace filter {
  46         class Log::Impl {
  47         public:
  48             class LFile;
  49             typedef boost::shared_ptr<Log::Impl::LFile> LFilePtr;
  50         public:
  51             //Impl();
  52             Impl(const std::string &x = "-");
  53            ~Impl();
  54             void process(metaproxy_1::Package & package);
  55             void configure(const xmlNode * ptr);
  56         private:
  57             void openfile(const std::string &fname);
  58             // needs to be static to be called by C pointer-to-function-syntax
  59             static void stream_write(ODR o, void *handle, int type,
  60                               const char *buf, int len);
  61             // needs to be static to be called by C pointer-to-function-syntax
  62             static void option_write(const char *name, void *handle);
  63         private:
  64             std::string m_msg_config;
  65             bool m_1line;
  66             bool m_access;
  67             bool m_user_access;
  68             bool m_req_apdu;
  69             bool m_res_apdu;
  70             bool m_req_session;
  71             bool m_res_session;
  72             bool m_init_options;
  73             LFilePtr m_file;
  74             std::string m_time_format;
  75             // Only used during confiqgure stage (no threading),
  76             // for performance avoid opening files which other log filter
  77             // instances already have opened
  78             static std::list<LFilePtr> filter_log_files;
  79
  80             boost::mutex m_session_mutex;
  81             std::map<mp::Session, std::string> m_sessions;
  82        };
  83
  84         class Log::Impl::LFile {
  85         public:
  86             boost::mutex m_mutex;
  87             std::string m_fname;
  88             FILE *fhandle;
  89             ~LFile();
  90             LFile(std::string fname);
  91             LFile(std::string fname, FILE *outf);
  92             void log(const std::string &date_format,
  93                      std::ostringstream &os);
  94             void flush();
  95         };
  96
  97     }
  98 }
  99
 100 // define Pimpl wrapper forwarding to Impl
 101
 102 yf::Log::Log() : m_p(new Impl)
 103 {
 104 }
 105
 106 yf::Log::Log(const std::string &x) : m_p(new Impl(x))
 107 {
 108 }
 109
 110 yf::Log::~Log()
 111 {  // must have a destructor because of boost::scoped_ptr
 112 }
 113
 114 void yf::Log::configure(const xmlNode *xmlnode, bool test_only,
 115                         const char *path)
 116 {
 117     m_p->configure(xmlnode);
 118 }
 119
 120 void yf::Log::process(mp::Package &package) const
 121 {
 122     m_p->process(package);
 123 }
 124
 125
 126 // static initialization
 127 std::list<yf::Log::Impl::LFilePtr> yf::Log::Impl::filter_log_files;
 128
 129
 130 yf::Log::Impl::Impl(const std::string &x)
 131     : m_msg_config(x),
 132       m_1line(false),
 133       m_access(true),
 134       m_user_access(false),
 135       m_req_apdu(false),
 136       m_res_apdu(false),
 137       m_req_session(false),
 138       m_res_session(false),
 139       m_init_options(false),
 140       m_time_format("%H:%M:%S-%d/%m")
 141 {
 142     openfile("");
 143 }
 144
 145
 146 yf::Log::Impl::~Impl()
 147 {
 148 }
 149
 150 static void log_DefaultDiagFormat(WRBUF w, Z_DefaultDiagFormat *e)
 151 {
 152     if (e->condition)
 153         wrbuf_printf(w, ODR_INT_PRINTF " ", *e->condition);
 154     else
 155         wrbuf_puts(w, "?? ");
 156     if (e->which == Z_DefaultDiagFormat_v2Addinfo && e->u.v2Addinfo)
 157     {
 158         wrbuf_puts(w, "\"");
 159         wrbuf_puts(w, e->u.v2Addinfo);
 160         wrbuf_puts(w, "\"");
 161     }
 162     else if (e->which == Z_DefaultDiagFormat_v3Addinfo && e->u.v3Addinfo)
 163     {
 164         wrbuf_puts(w, "\"");
 165         wrbuf_puts(w, e->u.v3Addinfo);
 166         wrbuf_puts(w, "\"");
 167     }
 168     else
 169         wrbuf_puts(w, "-");
 170 }
 171
 172 static void log_DiagRecs(WRBUF w, int num_diagRecs, Z_DiagRec **diags)
 173 {
 174     if (diags[0]->which != Z_DiagRec_defaultFormat)
 175         wrbuf_puts(w ,"(diag not in default format?)");
 176     else
 177     {
 178         Z_DefaultDiagFormat *e = diags[0]->u.defaultFormat;
 179         log_DefaultDiagFormat(w, e);
 180     }
 181 }
 182
 183 static void log_syntax(WRBUF w, const Odr_oid *syntax)
 184 {
 185     if (syntax)
 186     {
 187         char oid_name[OID_STR_MAX+1];
 188         wrbuf_puts(w, yaz_oid_to_string_buf(syntax, 0, oid_name));
 189     }
 190     else
 191         wrbuf_puts(w, "-");
 192 }
 193
 194 static void log_1line_Z_APDU(Z_APDU *z_req, Z_APDU *z_res, WRBUF w)
 195 {
 196     switch (z_req->which)
 197     {
 198     case Z_APDU_initRequest:
 199         wrbuf_puts(w, "Init ");
 200         if (!z_res)
 201             wrbuf_puts(w, "?");
 202         else if (z_res->which != Z_APDU_initResponse)
 203             wrbuf_printf(w, "? response=%d", z_res->which);
 204         else
 205         {
 206             Z_InitRequest *req = z_req->u.initRequest;
 207             Z_InitResponse *res = z_res->u.initResponse;
 208             if (res->result && *res->result)
 209                 wrbuf_printf(w, "OK -");
 210             else
 211             {
 212                 Z_External *uif = res->userInformationField;
 213                 bool got_code = false;
 214                 wrbuf_printf(w, "ERROR ");
 215                 if (uif && uif->which == Z_External_userInfo1)
 216                 {
 217                     Z_OtherInformation *ui = uif->u.userInfo1;
 218                     if (ui->num_elements >= 1)
 219                     {
 220                         Z_OtherInformationUnit *unit = ui->list[0];
 221                         if (unit->which == Z_OtherInfo_externallyDefinedInfo &&
 222                             unit->information.externallyDefinedInfo &&
 223                             unit->information.externallyDefinedInfo->which ==
 224                             Z_External_diag1)
 225                         {
 226                             Z_DiagnosticFormat *diag =
 227                                 unit->information.externallyDefinedInfo->
 228                                 u.diag1;
 229                             if (diag->num >= 1)
 230                             {
 231                                 Z_DiagnosticFormat_s *ds = diag->elements[0];
 232                                 if (ds->which ==
 233                                     Z_DiagnosticFormat_s_defaultDiagRec)
 234                                 {
 235                                     log_DefaultDiagFormat(w,
 236                                                           ds->u.defaultDiagRec);
 237                                     got_code = true;
 238                                 }
 239                             }
 240
 241                         }
 242                     }
 243                 }
 244                 if (!got_code)
 245                     wrbuf_puts(w, "-");
 246             }
 247             wrbuf_printf(w, " ID:%s Name:%s Version:%s",
 248                          req->implementationId ? req->implementationId :"-",
 249                          req->implementationName ?req->implementationName : "-",
 250                          req->implementationVersion ?
 251                          req->implementationVersion : "-");
 252         }
 253         break;
 254     case Z_APDU_searchRequest:
 255         wrbuf_puts(w, "Search ");
 256         if (!z_res)
 257             wrbuf_puts(w, "?");
 258         else if (z_res->which != Z_APDU_searchResponse)
 259             wrbuf_printf(w, "? response=%d", z_res->which);
 260         else
 261         {
 262             Z_SearchRequest *req = z_req->u.searchRequest;
 263             Z_SearchResponse *res = z_res->u.searchResponse;
 264             int i;
 265             for (i = 0 ; i < req->num_databaseNames; i++)
 266             {
 267                 if (i)
 268                     wrbuf_printf(w, "+");
 269                 wrbuf_puts(w, req->databaseNames[i]);
 270             }
 271             wrbuf_printf(w, " ");
 272             if (!res->records)
 273             {
 274                 wrbuf_printf(w, "OK " ODR_INT_PRINTF " %s", *res->resultCount,
 275                              req->resultSetName);
 276             }
 277             else if (res->records->which == Z_Records_DBOSD)
 278             {
 279                 wrbuf_printf(w, "OK " ODR_INT_PRINTF " %s", *res->resultCount,
 280                              req->resultSetName);
 281             }
 282             else if (res->records->which == Z_Records_NSD)
 283             {
 284                 wrbuf_puts(w, "ERROR ");
 285                 log_DefaultDiagFormat(w,
 286                                       res->records->u.nonSurrogateDiagnostic);
 287             }
 288             else if (res->records->which == Z_Records_multipleNSD)
 289             {
 290                 wrbuf_puts(w, "ERROR ");
 291                 log_DiagRecs(
 292                     w,
 293                     res->records->u.multipleNonSurDiagnostics->num_diagRecs,
 294                     res->records->u.multipleNonSurDiagnostics->diagRecs);
 295             }
 296             wrbuf_puts(w, " ");
 297             log_syntax(w, req->preferredRecordSyntax);
 298             wrbuf_printf(w, " 1+" ODR_INT_PRINTF " ",
 299                          res->numberOfRecordsReturned
 300                          ? *res->numberOfRecordsReturned : 0);
 301             yaz_query_to_wrbuf(w, req->query);
 302         }
 303         break;
 304     case Z_APDU_presentRequest:
 305         wrbuf_puts(w, "Present ");
 306         if (!z_res)
 307             wrbuf_puts(w, "?");
 308         else if (z_res->which != Z_APDU_presentResponse)
 309             wrbuf_printf(w, "? response=%d", z_res->which);
 310         else
 311         {
 312             Z_PresentRequest *req = z_req->u.presentRequest;
 313             Z_PresentResponse *res = z_res->u.presentResponse;
 314
 315             if (!res->records)
 316             {
 317                 wrbuf_printf(w, "OK");
 318             }
 319             else if (res->records->which == Z_Records_DBOSD)
 320             {
 321                 wrbuf_printf(w, "OK");
 322             }
 323             else if (res->records->which == Z_Records_NSD)
 324             {
 325                 wrbuf_puts(w, "ERROR ");
 326                 log_DefaultDiagFormat(w,
 327                                       res->records->u.nonSurrogateDiagnostic);
 328             }
 329             else if (res->records->which == Z_Records_multipleNSD)
 330             {
 331                 wrbuf_puts(w, "ERROR ");
 332                 log_DiagRecs(
 333                     w,
 334                     res->records->u.multipleNonSurDiagnostics->num_diagRecs,
 335                     res->records->u.multipleNonSurDiagnostics->diagRecs);
 336             }
 337             wrbuf_puts(w, " ");
 338             assert(req->preferredRecordSyntax);
 339             log_syntax(w, req->preferredRecordSyntax);
 340
 341             wrbuf_printf(w, " %s " ODR_INT_PRINTF "+" ODR_INT_PRINTF " ",
 342                 req->resultSetId, *req->resultSetStartPoint,
 343                          *req->numberOfRecordsRequested);
 344         }
 345         break;
 346     case Z_APDU_deleteResultSetRequest:
 347         wrbuf_puts(w, "deleteResultSet ");
 348         break;
 349     case Z_APDU_accessControlRequest:
 350         wrbuf_puts(w, "accessControl ");
 351         break;
 352     case Z_APDU_resourceControlRequest:
 353         wrbuf_puts(w, "resourceControl ");
 354         break;
 355     case Z_APDU_triggerResourceControlRequest:
 356         wrbuf_puts(w, "triggerResourceControlRequest");
 357         break;
 358     case Z_APDU_resourceReportRequest:
 359         wrbuf_puts(w, "resourceReport ");
 360         break;
 361     case Z_APDU_scanRequest:
 362         wrbuf_puts(w, "Scan ");
 363         if (!z_res)
 364             wrbuf_puts(w, "?");
 365         else if (z_res->which != Z_APDU_scanResponse)
 366             wrbuf_printf(w, "? response=%d", z_res->which);
 367         else
 368         {
 369             Z_ScanRequest *req = z_req->u.scanRequest;
 370             Z_ScanResponse *res = z_res->u.scanResponse;
 371             int i;
 372             for (i = 0 ; i < req->num_databaseNames; i++)
 373             {
 374                 if (i)
 375                     wrbuf_printf(w, "+");
 376                 wrbuf_puts(w, req->databaseNames[i]);
 377             }
 378             wrbuf_puts(w, " ");
 379             if (!res->scanStatus || *res->scanStatus == 0)
 380                 wrbuf_puts(w, "OK");
 381             else if (*res->scanStatus == 6)
 382                 wrbuf_puts(w, "ERROR");
 383             else
 384                 wrbuf_printf(w, "PARTIAL" ODR_INT_PRINTF, *res->scanStatus);
 385
 386             wrbuf_printf(w, " " ODR_INT_PRINTF " " ODR_INT_PRINTF "+"
 387                          ODR_INT_PRINTF "+" ODR_INT_PRINTF " ",
 388                          res->numberOfEntriesReturned ?
 389                          *res->numberOfEntriesReturned : 0,
 390                          req->preferredPositionInResponse ?
 391                           *req->preferredPositionInResponse : 1,
 392                          *req->numberOfTermsRequested,
 393                          res->stepSize ? *res->stepSize : 1);
 394
 395             yaz_scan_to_wrbuf(w, req->termListAndStartPoint,
 396                               req->attributeSet);
 397         }
 398         break;
 399     case Z_APDU_sortRequest:
 400         wrbuf_puts(w, "sort ");
 401         if (!z_res)
 402             wrbuf_puts(w, "?");
 403         else if (z_res->which != Z_APDU_sortResponse)
 404             wrbuf_printf(w, "? response=%d", z_res->which);
 405         else
 406         {
 407             Z_SortResponse *res = z_res->u.sortResponse;
 408             Z_SortRequest *req = z_res->u.sortRequest;
 409             int i;
 410
 411             if (*res->sortStatus == Z_SortResponse_success)
 412                 wrbuf_puts(w, "OK");
 413             else if (*res->sortStatus == Z_SortResponse_partial_1)
 414                 wrbuf_puts(w, "PARTIAL");
 415             else if (*res->sortStatus == Z_SortResponse_failure)
 416                 wrbuf_puts(w, "ERROR");
 417
 418             wrbuf_puts(w, " ");
 419             if (res->diagnostics && res->num_diagnostics >= 1)
 420                 log_DiagRecs(w, res->num_diagnostics,res->diagnostics);
 421             else
 422                 wrbuf_puts(w, "-");
 423
 424             wrbuf_puts(w, " (");
 425             for (i = 0; i < req->num_inputResultSetNames; i++)
 426             {
 427                 if (i)
 428                     wrbuf_puts(w, "+");
 429                 wrbuf_puts(w, req->inputResultSetNames[i]);
 430             }
 431             wrbuf_printf(w, ")->%s ",req->sortedResultSetName);
 432
 433         }
 434         break;
 435     case Z_APDU_segmentRequest:
 436         wrbuf_puts(w, "segmentRequest");
 437         break;
 438     case Z_APDU_extendedServicesRequest:
 439         wrbuf_puts(w, "extendedServices ");
 440         if (!z_res)
 441             wrbuf_puts(w, "?");
 442         else if (z_res->which != Z_APDU_extendedServicesResponse)
 443             wrbuf_printf(w, "? response=%d", z_res->which);
 444         else
 445         {
 446             Z_ExtendedServicesResponse *res =
 447                 z_res->u.extendedServicesResponse;
 448             switch (*res->operationStatus)
 449             {
 450             case Z_ExtendedServicesResponse_done:
 451                 wrbuf_puts(w, "DONE"); break;
 452             case Z_ExtendedServicesResponse_accepted:
 453                 wrbuf_puts(w, "ACCEPTED"); break;
 454             case Z_ExtendedServicesResponse_failure:
 455                 wrbuf_puts(w, "ERROR"); break;
 456             default:
 457                 wrbuf_printf(w, ODR_INT_PRINTF, *res->operationStatus);
 458             }
 459             wrbuf_puts(w, " ");
 460             if (res->diagnostics && res->num_diagnostics >= 1)
 461                 log_DiagRecs(w, res->num_diagnostics,res->diagnostics);
 462             else
 463                 wrbuf_puts(w, "-");
 464         }
 465         break;
 466     case Z_APDU_close:
 467         wrbuf_puts(w, "close");
 468         break;
 469     case Z_APDU_duplicateDetectionRequest:
 470         wrbuf_puts(w, "duplicateDetention ");
 471         if (!z_res)
 472             wrbuf_puts(w, "?");
 473         else if (z_res->which != Z_APDU_duplicateDetectionResponse)
 474             wrbuf_printf(w, "? response=%d", z_res->which);
 475         else
 476         {
 477             Z_DuplicateDetectionResponse *res =
 478                 z_res->u.duplicateDetectionResponse;
 479             if (*res->status)
 480                 wrbuf_puts(w, "OK");
 481             else
 482                 wrbuf_puts(w, "ERROR");
 483
 484             wrbuf_puts(w, " ");
 485             if (res->diagnostics && res->num_diagnostics >= 1)
 486                 log_DiagRecs(w, res->num_diagnostics, res->diagnostics);
 487             else
 488                 wrbuf_puts(w, "-");
 489         }
 490         break;
 491     default:
 492         wrbuf_printf(w, "REQ=%d RES=%d", z_req->which, z_res->which);
 493     }
 494 }
 495
 496
 497 static void log_1line_Z_HTTP(Z_HTTP_Request *req, Z_HTTP_Response *res, WRBUF w)
 498 {
 499     wrbuf_printf(w, "%s %s HTTP/%s", req->method, req->path, req->version);
 500     if (res)
 501         wrbuf_printf(w, " %d %d", res->code, res->content_len);
 502     else
 503         wrbuf_printf(w, " ?");
 504 }
 505
 506 static void log_1line_Z_GDU(Z_GDU *gdu_req, Z_GDU *gdu_res, WRBUF w)
 507 {
 508     if (gdu_req && gdu_req->which == Z_GDU_Z3950)
 509     {
 510         log_1line_Z_APDU(gdu_req->u.z3950,
 511                          (gdu_res && gdu_res->which == Z_GDU_Z3950) ?
 512                          gdu_res->u.z3950 : 0, w);
 513     }
 514     else if (gdu_req && gdu_req->which == Z_GDU_HTTP_Request)
 515     {
 516         log_1line_Z_HTTP(gdu_req->u.HTTP_Request,
 517                          (gdu_res && gdu_res->which == Z_GDU_HTTP_Response) ?
 518                          gdu_res->u.HTTP_Response : 0, w);
 519     }
 520 }
 521
 522 void yf::Log::Impl::configure(const xmlNode *ptr)
 523 {
 524     for (ptr = ptr->children; ptr; ptr = ptr->next)
 525     {
 526         if (ptr->type != XML_ELEMENT_NODE)
 527             continue;
 528         if (!strcmp((const char *) ptr->name, "message"))
 529             m_msg_config = mp::xml::get_text(ptr);
 530         else if (!strcmp((const char *) ptr->name, "filename"))
 531         {
 532             std::string fname = mp::xml::get_text(ptr);
 533             openfile(fname);
 534         }
 535         else if (!strcmp((const char *) ptr->name, "time-format"))
 536         {
 537             m_time_format = mp::xml::get_text(ptr);
 538         }
 539         else if (!strcmp((const char *) ptr->name, "category"))
 540         {
 541             const struct _xmlAttr *attr;
 542             for (attr = ptr->properties; attr; attr = attr->next)
 543             {
 544                 if (!strcmp((const char *) attr->name,  "line"))
 545                     m_1line = mp::xml::get_bool(attr->children, true);
 546                 else if (!strcmp((const char *) attr->name,  "access"))
 547                     m_access = mp::xml::get_bool(attr->children, true);
 548                 else if (!strcmp((const char *) attr->name, "user-access"))
 549                     m_user_access = mp::xml::get_bool(attr->children, true);
 550                 else if (!strcmp((const char *) attr->name, "request-apdu"))
 551                     m_req_apdu = mp::xml::get_bool(attr->children, true);
 552                 else if (!strcmp((const char *) attr->name, "response-apdu"))
 553                     m_res_apdu = mp::xml::get_bool(attr->children, true);
 554                 else if (!strcmp((const char *) attr->name, "apdu"))
 555                 {
 556                     m_req_apdu = mp::xml::get_bool(attr->children, true);
 557                     m_res_apdu = m_req_apdu;
 558                 }
 559                 else if (!strcmp((const char *) attr->name,
 560                                  "request-session"))
 561                     m_req_session =
 562                         mp::xml::get_bool(attr->children, true);
 563                 else if (!strcmp((const char *) attr->name,
 564                                  "response-session"))
 565                     m_res_session =
 566                         mp::xml::get_bool(attr->children, true);
 567                 else if (!strcmp((const char *) attr->name,
 568                                  "session"))
 569                 {
 570                     m_req_session =
 571                         mp::xml::get_bool(attr->children, true);
 572                     m_res_session = m_req_session;
 573                 }
 574                 else if (!strcmp((const char *) attr->name,
 575                                  "init-options"))
 576                     m_init_options =
 577                         mp::xml::get_bool(attr->children, true);
 578                 else if (!strcmp((const char *) attr->name,
 579                                  "init-options"))
 580                     m_init_options =
 581                         mp::xml::get_bool(attr->children, true);
 582                 else
 583                     throw mp::filter::FilterException(
 584                         "Bad attribute " + std::string((const char *)
 585                                                        attr->name));
 586             }
 587         }
 588         else
 589         {
 590             throw mp::filter::FilterException("Bad element "
 591                                                + std::string((const char *)
 592                                                              ptr->name));
 593         }
 594     }
 595 }
 596
 597 void yf::Log::Impl::process(mp::Package &package)
 598 {
 599     Z_GDU *gdu_req = package.request().get();
 600     std::string user("-");
 601
 602     yaz_timing_t timer = yaz_timing_create();
 603
 604     // scope for session lock
 605     {
 606         boost::mutex::scoped_lock scoped_lock(m_session_mutex);
 607
 608         if (gdu_req && gdu_req->which == Z_GDU_Z3950)
 609         {
 610             Z_APDU *apdu_req = gdu_req->u.z3950;
 611             if (apdu_req->which == Z_APDU_initRequest)
 612             {
 613                 Z_InitRequest *req = apdu_req->u.initRequest;
 614                 Z_IdAuthentication *a = req->idAuthentication;
 615                 if (a)
 616                 {
 617                     if (a->which == Z_IdAuthentication_idPass)
 618                         user = a->u.idPass->userId;
 619                     else if (a->which == Z_IdAuthentication_open)
 620                         user = a->u.open;
 621
 622                     m_sessions[package.session()] = user;
 623                 }
 624             }
 625         }
 626         std::map<mp::Session,std::string>::iterator it =
 627             m_sessions.find(package.session());
 628         if (it != m_sessions.end())
 629             user = it->second;
 630
 631         if (package.session().is_closed())
 632             m_sessions.erase(package.session());
 633     }
 634     // scope for locking Ostream
 635     {
 636         boost::mutex::scoped_lock scoped_lock(m_file->m_mutex);
 637
 638         if (m_access)
 639         {
 640             if (gdu_req)
 641             {
 642                 std::ostringstream os;
 643                 os  << m_msg_config << " "
 644                     << package << " "
 645                     << "0.000000" << " "
 646                     << *gdu_req;
 647                 m_file->log(m_time_format, os);
 648             }
 649         }
 650
 651         if (m_user_access)
 652         {
 653             if (gdu_req)
 654             {
 655                 std::ostringstream os;
 656                 os  << m_msg_config << " " << user << " "
 657                     << package << " "
 658                     << "0.000000" << " "
 659                     << *gdu_req;
 660                 m_file->log(m_time_format, os);
 661             }
 662         }
 663
 664         if (m_req_session)
 665         {
 666             std::ostringstream os;
 667             os << m_msg_config;
 668             os << " request id=" << package.session().id();
 669             os << " close="
 670                << (package.session().is_closed() ? "yes" : "no");
 671             m_file->log(m_time_format, os);
 672         }
 673
 674         if (m_init_options)
 675         {
 676             if (gdu_req && gdu_req->which == Z_GDU_Z3950 &&
 677                 gdu_req->u.z3950->which == Z_APDU_initRequest)
 678             {
 679                 std::ostringstream os;
 680                 os << m_msg_config << " init options:";
 681                 yaz_init_opt_decode(gdu_req->u.z3950->u.initRequest->options,
 682                                     option_write, &os);
 683                 m_file->log(m_time_format, os);
 684             }
 685         }
 686
 687         if (m_req_apdu)
 688         {
 689             if (gdu_req)
 690             {
 691                 mp::odr odr(ODR_PRINT);
 692                 odr_set_stream(odr, m_file->fhandle, stream_write, 0);
 693                 z_GDU(odr, &gdu_req, 0, 0);
 694             }
 695         }
 696     }
 697
 698     // unlocked during move
 699     package.move();
 700
 701     Z_GDU *gdu_res = package.response().get();
 702
 703     yaz_timing_stop(timer);
 704     double duration = yaz_timing_get_real(timer);
 705
 706     // scope for locking Ostream
 707     {
 708         boost::mutex::scoped_lock scoped_lock(m_file->m_mutex);
 709
 710         if (m_1line)
 711         {
 712             mp::wrbuf w;
 713
 714             log_1line_Z_GDU(gdu_req, gdu_res, w);
 715             if (w.len() > 0)
 716             {
 717                 const char *message = wrbuf_cstr(w);
 718                 std::ostringstream os;
 719                 os  << m_msg_config << " "
 720                     << package << " "
 721                     << std::fixed << std::setprecision (6) << duration
 722                     << " "
 723                     << message;
 724                 m_file->log(m_time_format, os);
 725             }
 726         }
 727
 728         if (m_access)
 729         {
 730             if (gdu_res)
 731             {
 732                 std::ostringstream os;
 733                 os  << m_msg_config << " "
 734                     << package << " "
 735                     << std::fixed << std::setprecision (6) << duration
 736                     << " "
 737                     << *gdu_res;
 738                 m_file->log(m_time_format, os);
 739             }
 740         }
 741         if (m_user_access)
 742         {
 743             if (gdu_res)
 744             {
 745                 std::ostringstream os;
 746                 os  << m_msg_config << " " << user << " "
 747                     << package << " "
 748                     << std::fixed << std::setprecision (6) << duration << " "
 749                     << *gdu_res;
 750                 m_file->log(m_time_format, os);
 751             }
 752         }
 753
 754         if (m_res_session)
 755         {
 756             std::ostringstream os;
 757             os << m_msg_config;
 758             os << " response id=" << package.session().id();
 759             os << " close="
 760                << (package.session().is_closed() ? "yes " : "no ")
 761                << "duration="
 762                << std::fixed << std::setprecision (6) << duration;
 763             m_file->log(m_time_format, os);
 764         }
 765
 766         if (m_init_options)
 767         {
 768             if (gdu_res && gdu_res->which == Z_GDU_Z3950 &&
 769                 gdu_res->u.z3950->which == Z_APDU_initResponse)
 770             {
 771                 std::ostringstream os;
 772                 os << m_msg_config;
 773                 os << " init options:";
 774                 yaz_init_opt_decode(gdu_res->u.z3950->u.initResponse->options,
 775                                     option_write, &os);
 776                 m_file->log(m_time_format, os);
 777             }
 778         }
 779
 780         if (m_res_apdu)
 781         {
 782             if (gdu_res)
 783             {
 784                 mp::odr odr(ODR_PRINT);
 785                 odr_set_stream(odr, m_file->fhandle, stream_write, 0);
 786                 z_GDU(odr, &gdu_res, 0, 0);
 787             }
 788         }
 789     }
 790     m_file->flush();
 791     yaz_timing_destroy(&timer);
 792 }
 793
 794
 795 void yf::Log::Impl::openfile(const std::string &fname)
 796 {
 797     std::list<LFilePtr>::const_iterator it
 798         = filter_log_files.begin();
 799     for (; it != filter_log_files.end(); it++)
 800     {
 801         if ((*it)->m_fname == fname)
 802         {
 803             m_file = *it;
 804             return;
 805         }
 806     }
 807     LFilePtr newfile(new LFile(fname));
 808     filter_log_files.push_back(newfile);
 809     m_file = newfile;
 810 }
 811
 812
 813 void yf::Log::Impl::stream_write(ODR o, void *handle, int type, const char *buf, int len)
 814 {
 815     FILE *f = (FILE*) handle;
 816     fwrite(buf, len, 1, f ? f : yaz_log_file());
 817 }
 818
 819 void yf::Log::Impl::option_write(const char *name, void *handle)
 820 {
 821     std::ostringstream *os = (std::ostringstream *) handle;
 822     *os << " " << name;
 823 }
 824
 825
 826 yf::Log::Impl::LFile::LFile(std::string fname) :
 827     m_fname(fname)
 828
 829 {
 830     if (fname.c_str())
 831         fhandle = fopen(fname.c_str(), "a");
 832     else
 833         fhandle = 0;
 834 }
 835
 836 yf::Log::Impl::LFile::~LFile()
 837 {
 838 }
 839
 840 void yf::Log::Impl::LFile::log(const std::string &date_format,
 841                                std::ostringstream &os)
 842 {
 843     if (fhandle)
 844     {
 845         char datestr[80];
 846         time_t ti = time(0);
 847 #if HAVE_LOCALTIME_R
 848         struct tm tm0, *tm = &tm0;
 849         localtime_r(&ti, tm);
 850 #else
 851         struct tm *tm = localtime(&ti);
 852 #endif
 853         if (strftime(datestr, sizeof(datestr)-1, date_format.c_str(), tm))
 854         {
 855             fputs(datestr, fhandle);
 856             fputs(" ", fhandle);
 857         }
 858         fputs(os.str().c_str(), fhandle);
 859         fputc('\n', fhandle);
 860     }
 861     else
 862         yaz_log(YLOG_LOG, "%s", os.str().c_str());
 863 }
 864
 865 void yf::Log::Impl::LFile::flush()
 866 {
 867     if (fhandle)
 868         fflush(fhandle);
 869 }
 870
 871 static mp::filter::Base* filter_creator()
 872 {
 873     return new mp::filter::Log;
 874 }
 875
 876 extern "C" {
 877     struct metaproxy_1_filter_struct metaproxy_1_filter_log = {
 878         0,
 879         "log",
 880         filter_creator
 881     };
 882 }
 883
 884 /*
 885  * Local variables:
 886  * c-basic-offset: 4
 887  * c-file-style: "Stroustrup"
 888  * indent-tabs-mode: nil
 889  * End:
 890  * vim: shiftwidth=4 tabstop=8 expandtab
 891  */
 892