citadel/modules/pop3client/serv_pop3client.c

   1 /*
   2  * Consolidate mail from remote POP3 accounts.
   3  *
   4  * Copyright (c) 2007-2011 by the citadel.org team
   5  *
   6  * This program is open source software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as published
   8  * by the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19  */
  20
  21 #include <stdlib.h>
  22 #include <unistd.h>
  23 #include <stdio.h>
  24
  25 #if TIME_WITH_SYS_TIME
  26 # include <sys/time.h>
  27 # include <time.h>
  28 #else
  29 # if HAVE_SYS_TIME_H
  30 #  include <sys/time.h>
  31 # else
  32 #  include <time.h>
  33 # endif
  34 #endif
  35
  36 #include <ctype.h>
  37 #include <string.h>
  38 #include <errno.h>
  39 #include <sys/types.h>
  40 #include <sys/stat.h>
  41 #include <libcitadel.h>
  42 #include "citadel.h"
  43 #include "server.h"
  44 #include "citserver.h"
  45 #include "support.h"
  46 #include "config.h"
  47 #include "ctdl_module.h"
  48 #include "clientsocket.h"
  49 #include "msgbase.h"
  50 #include "internet_addressing.h"
  51 #include "database.h"
  52 #include "citadel_dirs.h"
  53 #include "event_client.h"
  54
  55
  56 #define POP3C_OK (strncasecmp(ChrPtr(RecvMsg->IO.IOBuf), "+OK", 3) == 0)
  57 int Pop3ClientID = 0;
  58 int POP3ClientDebugEnabled = 0;
  59
  60 #define N ((pop3aggr*)IO->Data)->n
  61
  62 #define DBGLOG(LEVEL) if ((LEVEL != LOG_DEBUG) || (POP3ClientDebugEnabled != 0))
  63
  64 #define EVP3C_syslog(LEVEL, FORMAT, ...)                                \
  65         DBGLOG(LEVEL) syslog(LEVEL,                                     \
  66                              "IO[%ld]CC[%d][%ld]" FORMAT,               \
  67                              IO->ID, CCID, N, __VA_ARGS__)
  68
  69 #define EVP3CM_syslog(LEVEL, FORMAT)                                    \
  70         DBGLOG(LEVEL) syslog(LEVEL,                                     \
  71                              "IO[%ld]CC[%d][%ld]" FORMAT,               \
  72                              IO->ID, CCID, N)
  73
  74 #define EVP3CQ_syslog(LEVEL, FORMAT, ...)                               \
  75         DBGLOG(LEVEL) syslog(LEVEL,                                     \
  76                              "P3Q:" FORMAT,                             \
  77                              __VA_ARGS__)
  78
  79 #define EVP3CQM_syslog(LEVEL, FORMAT)                                   \
  80         DBGLOG(LEVEL) syslog(LEVEL,                                     \
  81                              "P3Q" FORMAT                               \
  82                 )
  83
  84 #define EVP3CCS_syslog(LEVEL, FORMAT, ...)                              \
  85         DBGLOG(LEVEL) syslog(LEVEL, "IO[%ld][%ld]" FORMAT,              \
  86                              IO->ID, N, __VA_ARGS__)
  87
  88 #define EVP3CCSM_syslog(LEVEL, FORMAT)                          \
  89         DBGLOG(LEVEL) syslog(LEVEL, "IO[%ld][%ld]" FORMAT,      \
  90                              IO->ID, N)
  91
  92 #define POP3C_DBG_SEND()                                                \
  93         EVP3C_syslog(LOG_DEBUG,                                         \
  94                      "POP3: > %s\n",                                    \
  95                      ChrPtr(RecvMsg->IO.SendBuf.Buf))
  96
  97 #define POP3C_DBG_READ()                                \
  98         EVP3C_syslog(LOG_DEBUG,                         \
  99                      "POP3: < %s\n",                    \
 100                      ChrPtr(RecvMsg->IO.IOBuf))
 101
 102
 103 struct CitContext pop3_client_CC;
 104
 105 pthread_mutex_t POP3QueueMutex; /* locks the access to the following vars: */
 106 HashList *POP3QueueRooms = NULL;
 107 HashList *POP3FetchUrls = NULL;
 108
 109 typedef struct pop3aggr pop3aggr;
 110 typedef eNextState(*Pop3ClientHandler)(pop3aggr* RecvMsg);
 111
 112 eNextState POP3_C_Shutdown(AsyncIO *IO);
 113 eNextState POP3_C_Timeout(AsyncIO *IO);
 114 eNextState POP3_C_ConnFail(AsyncIO *IO);
 115 eNextState POP3_C_DNSFail(AsyncIO *IO);
 116 eNextState POP3_C_DispatchReadDone(AsyncIO *IO);
 117 eNextState POP3_C_DispatchWriteDone(AsyncIO *IO);
 118 eNextState POP3_C_Terminate(AsyncIO *IO);
 119 eReadState POP3_C_ReadServerStatus(AsyncIO *IO);
 120 eNextState POP3_C_ReAttachToFetchMessages(AsyncIO *IO);
 121
 122 typedef struct __pop3_room_counter {
 123         int count;
 124         long QRnumber;
 125 }pop3_room_counter;
 126
 127 typedef enum ePOP3_C_States {
 128         ReadGreeting,
 129         GetUserState,
 130         GetPassState,
 131         GetListCommandState,
 132         GetListOneLine,
 133         GetOneMessageIDState,
 134         ReadMessageBodyFollowing,
 135         ReadMessageBody,
 136         GetDeleteState,
 137         ReadQuitState,
 138         POP3C_MaxRead
 139 }ePOP3_C_States;
 140
 141
 142 typedef struct _FetchItem {
 143         long MSGID;
 144         long MSGSize;
 145         StrBuf *MsgUIDL;
 146         StrBuf *MsgUID;
 147         int NeedFetch;
 148         struct CtdlMessage *Msg;
 149 } FetchItem;
 150
 151 void HfreeFetchItem(void *vItem)
 152 {
 153         FetchItem *Item = (FetchItem*) vItem;
 154         FreeStrBuf(&Item->MsgUIDL);
 155         FreeStrBuf(&Item->MsgUID);
 156         free(Item);
 157 }
 158
 159 struct pop3aggr {
 160         AsyncIO  IO;
 161
 162         long n;
 163         double IOStart;
 164         long count;
 165         long RefCount;
 166         DNSQueryParts HostLookup;
 167
 168         long             QRnumber;
 169         HashList        *OtherQRnumbers;
 170
 171         StrBuf          *Url;
 172         StrBuf *pop3user;
 173         StrBuf *pop3pass;
 174         StrBuf *RoomName; // TODO: fill me
 175         int keep;
 176         time_t interval;
 177         ePOP3_C_States State;
 178         HashList *MsgNumbers;
 179         HashPos *Pos;
 180         FetchItem *CurrMsg;
 181 };
 182
 183 void DeletePOP3Aggregator(void *vptr)
 184 {
 185         pop3aggr *ptr = vptr;
 186         DeleteHashPos(&ptr->Pos);
 187         DeleteHash(&ptr->MsgNumbers);
 188 //      FreeStrBuf(&ptr->rooms);
 189         FreeStrBuf(&ptr->pop3user);
 190         FreeStrBuf(&ptr->pop3pass);
 191         FreeStrBuf(&ptr->RoomName);
 192         FreeURL(&ptr->IO.ConnectMe);
 193         FreeStrBuf(&ptr->Url);
 194         FreeStrBuf(&ptr->IO.IOBuf);
 195         FreeStrBuf(&ptr->IO.SendBuf.Buf);
 196         FreeStrBuf(&ptr->IO.RecvBuf.Buf);
 197         DeleteAsyncMsg(&ptr->IO.ReadMsg);
 198         ((struct CitContext*)ptr->IO.CitContext)->state = CON_IDLE;
 199         ((struct CitContext*)ptr->IO.CitContext)->kill_me = 1;
 200         FreeAsyncIOContents(&ptr->IO);
 201         free(ptr);
 202 }
 203
 204 eNextState FinalizePOP3AggrRun(AsyncIO *IO)
 205 {
 206         HashPos  *It;
 207         pop3aggr *cpptr = (pop3aggr *)IO->Data;
 208
 209         EVP3C_syslog(LOG_INFO,
 210                      "%s@%s: fetched %ld new of %d messages in %fs. bye.",
 211                      ChrPtr(cpptr->pop3user),
 212                      ChrPtr(cpptr->pop3pass),
 213                      cpptr->count,
 214                      GetCount(cpptr->MsgNumbers),
 215                      IO->Now - cpptr->IOStart
 216                 );
 217
 218         It = GetNewHashPos(POP3FetchUrls, 0);
 219         pthread_mutex_lock(&POP3QueueMutex);
 220         {
 221                 if (GetHashPosFromKey(POP3FetchUrls, SKEY(cpptr->Url), It))
 222                         DeleteEntryFromHash(POP3FetchUrls, It);
 223         }
 224         pthread_mutex_unlock(&POP3QueueMutex);
 225         DeleteHashPos(&It);
 226         return eAbort;
 227 }
 228
 229 eNextState FailAggregationRun(AsyncIO *IO)
 230 {
 231         return eAbort;
 232 }
 233
 234 eNextState POP3C_ReadGreeting(pop3aggr *RecvMsg)
 235 {
 236         AsyncIO *IO = &RecvMsg->IO;
 237         POP3C_DBG_READ();
 238         /* Read the server greeting */
 239         if (!POP3C_OK) return eTerminateConnection;
 240         else return eSendReply;
 241 }
 242
 243 eNextState POP3C_SendUser(pop3aggr *RecvMsg)
 244 {
 245         AsyncIO *IO = &RecvMsg->IO;
 246         /* Identify ourselves.  NOTE: we have to append a CR to each command.
 247          *  The LF will automatically be appended by sock_puts().  Believe it
 248          * or not, leaving out the CR will cause problems if the server happens
 249          * to be Exchange, which is so b0rken it actually barfs on
 250          * LF-terminated newlines.
 251          */
 252         StrBufPrintf(RecvMsg->IO.SendBuf.Buf,
 253                      "USER %s\r\n", ChrPtr(RecvMsg->pop3user));
 254         POP3C_DBG_SEND();
 255         return eReadMessage;
 256 }
 257
 258 eNextState POP3C_GetUserState(pop3aggr *RecvMsg)
 259 {
 260         AsyncIO *IO = &RecvMsg->IO;
 261         POP3C_DBG_READ();
 262         if (!POP3C_OK) return eTerminateConnection;
 263         else return eSendReply;
 264 }
 265
 266 eNextState POP3C_SendPassword(pop3aggr *RecvMsg)
 267 {
 268         AsyncIO *IO = &RecvMsg->IO;
 269         /* Password */
 270         StrBufPrintf(RecvMsg->IO.SendBuf.Buf,
 271                      "PASS %s\r\n", ChrPtr(RecvMsg->pop3pass));
 272         EVP3CM_syslog(LOG_DEBUG, "<PASS <password>\n");
 273 //      POP3C_DBG_SEND(); No, we won't write the passvoid to syslog...
 274         return eReadMessage;
 275 }
 276
 277 eNextState POP3C_GetPassState(pop3aggr *RecvMsg)
 278 {
 279         AsyncIO *IO = &RecvMsg->IO;
 280         POP3C_DBG_READ();
 281         if (!POP3C_OK) return eTerminateConnection;
 282         else return eSendReply;
 283 }
 284
 285 eNextState POP3C_SendListCommand(pop3aggr *RecvMsg)
 286 {
 287         AsyncIO *IO = &RecvMsg->IO;
 288         /* Get the list of messages */
 289         StrBufPlain(RecvMsg->IO.SendBuf.Buf, HKEY("LIST\r\n"));
 290         POP3C_DBG_SEND();
 291         return eReadMessage;
 292 }
 293
 294 eNextState POP3C_GetListCommandState(pop3aggr *RecvMsg)
 295 {
 296         AsyncIO *IO = &RecvMsg->IO;
 297         POP3C_DBG_READ();
 298         if (!POP3C_OK) return eTerminateConnection;
 299         RecvMsg->MsgNumbers = NewHash(1, NULL);
 300         RecvMsg->State++;
 301         return eReadMore;
 302 }
 303
 304
 305 eNextState POP3C_GetListOneLine(pop3aggr *RecvMsg)
 306 {
 307         AsyncIO *IO = &RecvMsg->IO;
 308 #if 0
 309         int rc;
 310 #endif
 311         const char *pch;
 312         FetchItem *OneMsg = NULL;
 313         POP3C_DBG_READ();
 314
 315         if ((StrLength(RecvMsg->IO.IOBuf) == 1) &&
 316             (ChrPtr(RecvMsg->IO.IOBuf)[0] == '.'))
 317         {
 318                 if (GetCount(RecvMsg->MsgNumbers) == 0)
 319                 {
 320                         ////    RecvMsg->Sate = ReadQuitState;
 321                 }
 322                 else
 323                 {
 324                         RecvMsg->Pos = GetNewHashPos(RecvMsg->MsgNumbers, 0);
 325                 }
 326                 return eSendReply;
 327
 328         }
 329         OneMsg = (FetchItem*) malloc(sizeof(FetchItem));
 330         memset(OneMsg, 0, sizeof(FetchItem));
 331         OneMsg->MSGID = atol(ChrPtr(RecvMsg->IO.IOBuf));
 332
 333         pch = strchr(ChrPtr(RecvMsg->IO.IOBuf), ' ');
 334         if (pch != NULL)
 335         {
 336                 OneMsg->MSGSize = atol(pch + 1);
 337         }
 338 #if 0
 339         rc = TestValidateHash(RecvMsg->MsgNumbers);
 340         if (rc != 0)
 341                 EVP3CCS_syslog(LOG_DEBUG, "Hash Invalid: %d\n", rc);
 342 #endif
 343
 344         Put(RecvMsg->MsgNumbers, LKEY(OneMsg->MSGID), OneMsg, HfreeFetchItem);
 345 #if 0
 346         rc = TestValidateHash(RecvMsg->MsgNumbers);
 347         if (rc != 0)
 348                 EVP3CCS_syslog(LOG_DEBUG, "Hash Invalid: %d\n", rc);
 349 #endif
 350         //RecvMsg->State --; /* read next Line */
 351         return eReadMore;
 352 }
 353
 354 eNextState POP3_FetchNetworkUsetableEntry(AsyncIO *IO)
 355 {
 356         long HKLen;
 357         const char *HKey;
 358         void *vData;
 359         struct cdbdata *cdbut;
 360         pop3aggr *RecvMsg = (pop3aggr *) IO->Data;
 361
 362         if(GetNextHashPos(RecvMsg->MsgNumbers,
 363                           RecvMsg->Pos,
 364                           &HKLen,
 365                           &HKey,
 366                           &vData))
 367         {
 368                 struct UseTable ut;
 369                 if (server_shutting_down)
 370                         return eAbort;
 371
 372                 RecvMsg->CurrMsg = (FetchItem*) vData;
 373                 EVP3CCS_syslog(LOG_DEBUG,
 374                                "CHECKING: whether %s has already been seen: ",
 375                                ChrPtr(RecvMsg->CurrMsg->MsgUID));
 376
 377                 /* Find out if we've already seen this item */
 378                 safestrncpy(ut.ut_msgid,
 379                             ChrPtr(RecvMsg->CurrMsg->MsgUID),
 380                             sizeof(ut.ut_msgid));
 381                 ut.ut_timestamp = time(NULL);/// TODO: libev timestamp!
 382
 383                 cdbut = cdb_fetch(CDB_USETABLE, SKEY(RecvMsg->CurrMsg->MsgUID));
 384                 if (cdbut != NULL) {
 385                         /* Item has already been seen */
 386                         EVP3CCSM_syslog(LOG_DEBUG, "YES\n");
 387                         cdb_free(cdbut);
 388
 389                         /* rewrite the record anyway, to update the timestamp */
 390                         cdb_store(CDB_USETABLE,
 391                                   SKEY(RecvMsg->CurrMsg->MsgUID),
 392                                   &ut, sizeof(struct UseTable) );
 393                         RecvMsg->CurrMsg->NeedFetch = 0; ////TODO0;
 394                 }
 395                 else
 396                 {
 397                         EVP3CCSM_syslog(LOG_DEBUG, "NO\n");
 398                         RecvMsg->CurrMsg->NeedFetch = 1;
 399                 }
 400                 return NextDBOperation(&RecvMsg->IO,
 401                                        POP3_FetchNetworkUsetableEntry);
 402         }
 403         else
 404         {
 405                 /* ok, now we know them all,
 406                  * continue with reading the actual messages. */
 407                 DeleteHashPos(&RecvMsg->Pos);
 408                 StopDBWatchers(IO);
 409                 return QueueEventContext(IO, POP3_C_ReAttachToFetchMessages);
 410         }
 411 }
 412
 413 eNextState POP3C_GetOneMessagID(pop3aggr *RecvMsg)
 414 {
 415         AsyncIO *IO = &RecvMsg->IO;
 416         long HKLen;
 417         const char *HKey;
 418         void *vData;
 419
 420 #if 0
 421         int rc;
 422         rc = TestValidateHash(RecvMsg->MsgNumbers);
 423         if (rc != 0)
 424                 EVP3CCS_syslog(LOG_DEBUG, "Hash Invalid: %d\n", rc);
 425 #endif
 426         if(GetNextHashPos(RecvMsg->MsgNumbers,
 427                           RecvMsg->Pos,
 428                           &HKLen, &HKey,
 429                           &vData))
 430         {
 431                 RecvMsg->CurrMsg = (FetchItem*) vData;
 432                 /* Find out the UIDL of the message,
 433                  * to determine whether we've already downloaded it */
 434                 StrBufPrintf(RecvMsg->IO.SendBuf.Buf,
 435                              "UIDL %ld\r\n", RecvMsg->CurrMsg->MSGID);
 436                 POP3C_DBG_SEND();
 437         }
 438         else
 439         {
 440             RecvMsg->State++;
 441                 DeleteHashPos(&RecvMsg->Pos);
 442                 /// done receiving uidls.. start looking them up now.
 443                 RecvMsg->Pos = GetNewHashPos(RecvMsg->MsgNumbers, 0);
 444                 return QueueDBOperation(&RecvMsg->IO,
 445                                         POP3_FetchNetworkUsetableEntry);
 446         }
 447         return eReadMore; /* TODO */
 448 }
 449
 450 eNextState POP3C_GetOneMessageIDState(pop3aggr *RecvMsg)
 451 {
 452         AsyncIO *IO = &RecvMsg->IO;
 453 #if 0
 454         int rc;
 455         rc = TestValidateHash(RecvMsg->MsgNumbers);
 456         if (rc != 0)
 457                 EVP3CCS_syslog(LOG_DEBUG, "Hash Invalid: %d\n", rc);
 458 #endif
 459
 460         POP3C_DBG_READ();
 461         if (!POP3C_OK) return eTerminateConnection;
 462         RecvMsg->CurrMsg->MsgUIDL =
 463                 NewStrBufPlain(NULL, StrLength(RecvMsg->IO.IOBuf));
 464         RecvMsg->CurrMsg->MsgUID =
 465                 NewStrBufPlain(NULL, StrLength(RecvMsg->IO.IOBuf) * 2);
 466
 467         StrBufExtract_token(RecvMsg->CurrMsg->MsgUIDL,
 468                             RecvMsg->IO.IOBuf, 2, ' ');
 469
 470         StrBufPrintf(RecvMsg->CurrMsg->MsgUID,
 471                      "pop3/%s/%s:%s@%s",
 472                      ChrPtr(RecvMsg->RoomName),
 473                      ChrPtr(RecvMsg->CurrMsg->MsgUIDL),
 474                      RecvMsg->IO.ConnectMe->User,
 475                      RecvMsg->IO.ConnectMe->Host);
 476         RecvMsg->State --;
 477         return eSendReply;
 478 }
 479
 480
 481 eNextState POP3C_SendGetOneMsg(pop3aggr *RecvMsg)
 482 {
 483         AsyncIO *IO = &RecvMsg->IO;
 484         long HKLen;
 485         const char *HKey;
 486         void *vData;
 487
 488         RecvMsg->CurrMsg = NULL;
 489         while (GetNextHashPos(RecvMsg->MsgNumbers,
 490                               RecvMsg->Pos,
 491                               &HKLen, &HKey,
 492                               &vData) &&
 493                (RecvMsg->CurrMsg = (FetchItem*) vData,
 494                 RecvMsg->CurrMsg->NeedFetch == 0))
 495         {}
 496
 497         if ((RecvMsg->CurrMsg != NULL ) && (RecvMsg->CurrMsg->NeedFetch == 1))
 498         {
 499                 /* Message has not been seen.
 500                  * Tell the server to fetch the message... */
 501                 StrBufPrintf(RecvMsg->IO.SendBuf.Buf,
 502                              "RETR %ld\r\n", RecvMsg->CurrMsg->MSGID);
 503                 POP3C_DBG_SEND();
 504                 return eReadMessage;
 505         }
 506         else {
 507                 RecvMsg->State = ReadQuitState;
 508                 return POP3_C_DispatchWriteDone(&RecvMsg->IO);
 509         }
 510 }
 511
 512
 513 eNextState POP3C_ReadMessageBodyFollowing(pop3aggr *RecvMsg)
 514 {
 515         AsyncIO *IO = &RecvMsg->IO;
 516         POP3C_DBG_READ();
 517         if (!POP3C_OK) return eTerminateConnection;
 518         RecvMsg->IO.ReadMsg = NewAsyncMsg(HKEY("."),
 519                                           RecvMsg->CurrMsg->MSGSize,
 520                                           config.c_maxmsglen,
 521                                           NULL, -1,
 522                                           1);
 523
 524         return eReadPayload;
 525 }
 526
 527
 528 eNextState POP3C_StoreMsgRead(AsyncIO *IO)
 529 {
 530         pop3aggr *RecvMsg = (pop3aggr *) IO->Data;
 531         struct UseTable ut;
 532
 533         EVP3CCS_syslog(LOG_DEBUG,
 534                        "MARKING: %s as seen: ",
 535                        ChrPtr(RecvMsg->CurrMsg->MsgUID));
 536
 537         safestrncpy(ut.ut_msgid,
 538                     ChrPtr(RecvMsg->CurrMsg->MsgUID),
 539                     sizeof(ut.ut_msgid));
 540         ut.ut_timestamp = time(NULL); /* TODO: use libev time */
 541         cdb_store(CDB_USETABLE,
 542                   ChrPtr(RecvMsg->CurrMsg->MsgUID),
 543                   StrLength(RecvMsg->CurrMsg->MsgUID),
 544                   &ut,
 545                   sizeof(struct UseTable) );
 546         StopDBWatchers(IO);
 547         return QueueEventContext(&RecvMsg->IO, POP3_C_ReAttachToFetchMessages);
 548 }
 549 eNextState POP3C_SaveMsg(AsyncIO *IO)
 550 {
 551         long msgnum;
 552         pop3aggr *RecvMsg = (pop3aggr *) IO->Data;
 553
 554         /* Do Something With It (tm) */
 555         msgnum = CtdlSubmitMsg(RecvMsg->CurrMsg->Msg,
 556                                NULL,
 557                                ChrPtr(RecvMsg->RoomName),
 558                                0);
 559         if (msgnum > 0L)
 560         {
 561                 /* Message has been committed to the store
 562                  * write the uidl to the use table
 563                  * so we don't fetch this message again
 564                  */
 565         }
 566         CtdlFreeMessage(RecvMsg->CurrMsg->Msg);
 567
 568         RecvMsg->count ++;
 569         return NextDBOperation(&RecvMsg->IO, POP3C_StoreMsgRead);
 570 }
 571
 572 eNextState POP3C_ReadMessageBody(pop3aggr *RecvMsg)
 573 {
 574         AsyncIO *IO = &RecvMsg->IO;
 575         EVP3CM_syslog(LOG_DEBUG, "Converting message...");
 576         RecvMsg->CurrMsg->Msg =
 577                 convert_internet_message_buf(&RecvMsg->IO.ReadMsg->MsgBuf);
 578         StopClientWatchers(IO, 0);
 579         return QueueDBOperation(&RecvMsg->IO, POP3C_SaveMsg);
 580 }
 581
 582 eNextState POP3C_SendDelete(pop3aggr *RecvMsg)
 583 {
 584         AsyncIO *IO = &RecvMsg->IO;
 585         if (!RecvMsg->keep) {
 586                 StrBufPrintf(RecvMsg->IO.SendBuf.Buf,
 587                              "DELE %ld\r\n", RecvMsg->CurrMsg->MSGID);
 588                 POP3C_DBG_SEND();
 589                 return eReadMessage;
 590         }
 591         else {
 592                 RecvMsg->State = ReadMessageBodyFollowing;
 593                 return POP3_C_DispatchWriteDone(&RecvMsg->IO);
 594         }
 595 }
 596 eNextState POP3C_ReadDeleteState(pop3aggr *RecvMsg)
 597 {
 598         AsyncIO *IO = &RecvMsg->IO;
 599         POP3C_DBG_READ();
 600         RecvMsg->State = GetOneMessageIDState;
 601         return eReadMessage;
 602 }
 603
 604 eNextState POP3C_SendQuit(pop3aggr *RecvMsg)
 605 {
 606         AsyncIO *IO = &RecvMsg->IO;
 607         /* Log out */
 608         StrBufPlain(RecvMsg->IO.SendBuf.Buf,
 609                     HKEY("QUIT\r\n3)"));
 610         POP3C_DBG_SEND();
 611         return eReadMessage;
 612 }
 613
 614
 615 eNextState POP3C_ReadQuitState(pop3aggr *RecvMsg)
 616 {
 617         AsyncIO *IO = &RecvMsg->IO;
 618         POP3C_DBG_READ();
 619         return eTerminateConnection;
 620 }
 621
 622 const long POP3_C_ConnTimeout = 1000;
 623 const long DefaultPOP3Port = 110;
 624
 625 Pop3ClientHandler POP3C_ReadHandlers[] = {
 626         POP3C_ReadGreeting,
 627         POP3C_GetUserState,
 628         POP3C_GetPassState,
 629         POP3C_GetListCommandState,
 630         POP3C_GetListOneLine,
 631         POP3C_GetOneMessageIDState,
 632         POP3C_ReadMessageBodyFollowing,
 633         POP3C_ReadMessageBody,
 634         POP3C_ReadDeleteState,
 635         POP3C_ReadQuitState,
 636 };
 637
 638 const long POP3_C_SendTimeouts[POP3C_MaxRead] = {
 639         100,
 640         100,
 641         100,
 642         100,
 643         100,
 644         100,
 645         100,
 646         100
 647 };
 648 const ConstStr POP3C_ReadErrors[POP3C_MaxRead] = {
 649         {HKEY("Connection broken during ")},
 650         {HKEY("Connection broken during ")},
 651         {HKEY("Connection broken during ")},
 652         {HKEY("Connection broken during ")},
 653         {HKEY("Connection broken during ")},
 654         {HKEY("Connection broken during ")},
 655         {HKEY("Connection broken during ")},
 656         {HKEY("Connection broken during ")}
 657 };
 658
 659 Pop3ClientHandler POP3C_SendHandlers[] = {
 660         NULL, /* we don't send a greeting */
 661         POP3C_SendUser,
 662         POP3C_SendPassword,
 663         POP3C_SendListCommand,
 664         NULL,
 665         POP3C_GetOneMessagID,
 666         POP3C_SendGetOneMsg,
 667         NULL,
 668         POP3C_SendDelete,
 669         POP3C_SendQuit
 670 };
 671
 672 const long POP3_C_ReadTimeouts[] = {
 673         100,
 674         100,
 675         100,
 676         100,
 677         100,
 678         100,
 679         100,
 680         100,
 681         100,
 682         100
 683 };
 684 /*****************************************************************************/
 685 /*                     POP3 CLIENT DISPATCHER                                */
 686 /*****************************************************************************/
 687
 688 void POP3SetTimeout(eNextState NextTCPState, pop3aggr *pMsg)
 689 {
 690         AsyncIO *IO = &pMsg->IO;
 691         double Timeout = 0.0;
 692
 693         EVP3C_syslog(LOG_DEBUG, "POP3: %s\n", __FUNCTION__);
 694
 695         switch (NextTCPState) {
 696         case eSendFile:
 697         case eSendReply:
 698         case eSendMore:
 699                 Timeout = POP3_C_SendTimeouts[pMsg->State];
 700 /*
 701   if (pMsg->State == eDATABody) {
 702   / * if we're sending a huge message, we need more time. * /
 703   Timeout += StrLength(pMsg->msgtext) / 1024;
 704   }
 705 */
 706                 break;
 707         case eReadFile:
 708         case eReadMessage:
 709                 Timeout = POP3_C_ReadTimeouts[pMsg->State];
 710 /*
 711   if (pMsg->State == eDATATerminateBody) {
 712   / *
 713   * some mailservers take a nap before accepting the message
 714   * content inspection and such.
 715   * /
 716   Timeout += StrLength(pMsg->msgtext) / 1024;
 717   }
 718 */
 719                 break;
 720         case eReadPayload:
 721                 Timeout = 100000;
 722                 /* TODO!!! */
 723                 break;
 724         case eSendDNSQuery:
 725         case eReadDNSReply:
 726         case eConnect:
 727         case eTerminateConnection:
 728         case eDBQuery:
 729         case eAbort:
 730         case eReadMore://// TODO
 731                 return;
 732         }
 733         SetNextTimeout(&pMsg->IO, Timeout);
 734 }
 735 eNextState POP3_C_DispatchReadDone(AsyncIO *IO)
 736 {
 737 /*      EVP3CCS_syslog(LOG_DEBUG, "POP3: %s\n", __FUNCTION__); to noisy anyways. */
 738         pop3aggr *pMsg = IO->Data;
 739         eNextState rc;
 740
 741         rc = POP3C_ReadHandlers[pMsg->State](pMsg);
 742         if (rc != eReadMore)
 743             pMsg->State++;
 744         POP3SetTimeout(rc, pMsg);
 745         return rc;
 746 }
 747 eNextState POP3_C_DispatchWriteDone(AsyncIO *IO)
 748 {
 749         pop3aggr *pMsg = IO->Data;
 750         eNextState rc;
 751
 752 /*      EVP3CCS_syslog(LOG_DEBUG, "POP3: %s\n", __FUNCTION__); to noisy anyways. */
 753         rc = POP3C_SendHandlers[pMsg->State](pMsg);
 754         POP3SetTimeout(rc, pMsg);
 755         return rc;
 756 }
 757
 758
 759 /*****************************************************************************/
 760 /*                     POP3 CLIENT ERROR CATCHERS                            */
 761 /*****************************************************************************/
 762 eNextState POP3_C_Terminate(AsyncIO *IO)
 763 {
 764 ///     pop3aggr *pMsg = (pop3aggr *)IO->Data;
 765
 766         EVP3CCS_syslog(LOG_DEBUG, "POP3: %s\n", __FUNCTION__);
 767         FinalizePOP3AggrRun(IO);
 768         return eAbort;
 769 }
 770 eNextState POP3_C_TerminateDB(AsyncIO *IO)
 771 {
 772 ///     pop3aggr *pMsg = (pop3aggr *)IO->Data;
 773
 774         EVP3CCS_syslog(LOG_DEBUG, "POP3: %s\n", __FUNCTION__);
 775         FinalizePOP3AggrRun(IO);
 776         return eAbort;
 777 }
 778 eNextState POP3_C_Timeout(AsyncIO *IO)
 779 {
 780         pop3aggr *pMsg = IO->Data;
 781
 782         EVP3CCS_syslog(LOG_DEBUG, "POP3: %s\n", __FUNCTION__);
 783         StrBufPlain(IO->ErrMsg, CKEY(POP3C_ReadErrors[pMsg->State]));
 784         return FailAggregationRun(IO);
 785 }
 786 eNextState POP3_C_ConnFail(AsyncIO *IO)
 787 {
 788         pop3aggr *pMsg = (pop3aggr *)IO->Data;
 789
 790         EVP3CCS_syslog(LOG_DEBUG, "POP3: %s\n", __FUNCTION__);
 791         StrBufPlain(IO->ErrMsg, CKEY(POP3C_ReadErrors[pMsg->State]));
 792         return FailAggregationRun(IO);
 793 }
 794 eNextState POP3_C_DNSFail(AsyncIO *IO)
 795 {
 796         pop3aggr *pMsg = (pop3aggr *)IO->Data;
 797
 798         EVP3CCS_syslog(LOG_DEBUG, "POP3: %s\n", __FUNCTION__);
 799         StrBufPlain(IO->ErrMsg, CKEY(POP3C_ReadErrors[pMsg->State]));
 800         return FailAggregationRun(IO);
 801 }
 802 eNextState POP3_C_Shutdown(AsyncIO *IO)
 803 {
 804         EVP3CCS_syslog(LOG_DEBUG, "POP3: %s\n", __FUNCTION__);
 805 ////    pop3aggr *pMsg = IO->Data;
 806
 807 ////pMsg->MyQEntry->Status = 3;
 808 ///StrBufPlain(pMsg->MyQEntry->StatusMessage, HKEY("server shutdown during message retrieval."));
 809         FinalizePOP3AggrRun(IO);
 810         return eAbort;
 811 }
 812
 813
 814 /**
 815  * @brief lineread Handler; understands when to read more POP3 lines,
 816  *   and when this is a one-lined reply.
 817  */
 818 eReadState POP3_C_ReadServerStatus(AsyncIO *IO)
 819 {
 820         eReadState Finished = eBufferNotEmpty;
 821
 822         switch (IO->NextState) {
 823         case eSendDNSQuery:
 824         case eReadDNSReply:
 825         case eDBQuery:
 826         case eConnect:
 827         case eTerminateConnection:
 828         case eAbort:
 829                 Finished = eReadFail;
 830                 break;
 831         case eSendFile:
 832         case eSendReply:
 833         case eSendMore:
 834         case eReadMore:
 835         case eReadMessage:
 836                 Finished = StrBufChunkSipLine(IO->IOBuf, &IO->RecvBuf);
 837                 break;
 838         case eReadFile:
 839         case eReadPayload:
 840                 Finished = CtdlReadMessageBodyAsync(IO);
 841                 break;
 842         }
 843         return Finished;
 844 }
 845
 846 /*****************************************************************************
 847  * So we connect our Server IP here.                                         *
 848  *****************************************************************************/
 849 eNextState POP3_C_ReAttachToFetchMessages(AsyncIO *IO)
 850 {
 851         pop3aggr *cpptr = IO->Data;
 852
 853         EVP3CCS_syslog(LOG_DEBUG, "POP3: %s\n", __FUNCTION__);
 854 ////??? cpptr->State ++;
 855         if (cpptr->Pos == NULL)
 856                 cpptr->Pos = GetNewHashPos(cpptr->MsgNumbers, 0);
 857
 858         POP3_C_DispatchWriteDone(IO);
 859         ReAttachIO(IO, cpptr, 0);
 860         IO->NextState = eReadMessage;
 861         return IO->NextState;
 862 }
 863
 864 eNextState pop3_connect_ip(AsyncIO *IO)
 865 {
 866         pop3aggr *cpptr = IO->Data;
 867
 868         if (cpptr->IOStart == 0.0) /* whith or without DNS? */
 869                 cpptr->IOStart = IO->Now;
 870
 871         EVP3CCS_syslog(LOG_DEBUG, "POP3: %s\n", __FUNCTION__);
 872
 873         return EvConnectSock(IO,
 874                              POP3_C_ConnTimeout,
 875                              POP3_C_ReadTimeouts[0],
 876                              1);
 877 }
 878
 879 eNextState pop3_get_one_host_ip_done(AsyncIO *IO)
 880 {
 881         pop3aggr *cpptr = IO->Data;
 882         struct hostent *hostent;
 883
 884         QueryCbDone(IO);
 885
 886         hostent = cpptr->HostLookup.VParsedDNSReply;
 887         if ((cpptr->HostLookup.DNSStatus == ARES_SUCCESS) &&
 888             (hostent != NULL) ) {
 889                 memset(&cpptr->IO.ConnectMe->Addr, 0, sizeof(struct in6_addr));
 890                 if (cpptr->IO.ConnectMe->IPv6) {
 891                         memcpy(&cpptr->IO.ConnectMe->Addr.sin6_addr.s6_addr,
 892                                &hostent->h_addr_list[0],
 893                                sizeof(struct in6_addr));
 894
 895                         cpptr->IO.ConnectMe->Addr.sin6_family =
 896                                 hostent->h_addrtype;
 897                         cpptr->IO.ConnectMe->Addr.sin6_port   =
 898                                 htons(DefaultPOP3Port);
 899                 }
 900                 else {
 901                         struct sockaddr_in *addr =
 902                                 (struct sockaddr_in*)
 903                                 &cpptr->IO.ConnectMe->Addr;
 904
 905                         memcpy(&addr->sin_addr.s_addr,
 906                                hostent->h_addr_list[0],
 907                                sizeof(uint32_t));
 908
 909                         addr->sin_family = hostent->h_addrtype;
 910                         addr->sin_port   = htons(DefaultPOP3Port);
 911                 }
 912                 return pop3_connect_ip(IO);
 913         }
 914         else
 915                 return eAbort;
 916 }
 917
 918 eNextState pop3_get_one_host_ip(AsyncIO *IO)
 919 {
 920         pop3aggr *cpptr = IO->Data;
 921
 922         cpptr->IOStart = IO->Now;
 923
 924         EVP3CCS_syslog(LOG_DEBUG, "POP3: %s\n", __FUNCTION__);
 925
 926         EVP3CCS_syslog(LOG_DEBUG,
 927                        "POP3 client[%ld]: looking up %s-Record %s : %d ...\n",
 928                        cpptr->n,
 929                        (cpptr->IO.ConnectMe->IPv6)? "aaaa": "a",
 930                        cpptr->IO.ConnectMe->Host,
 931                        cpptr->IO.ConnectMe->Port);
 932
 933         QueueQuery((cpptr->IO.ConnectMe->IPv6)? ns_t_aaaa : ns_t_a,
 934                    cpptr->IO.ConnectMe->Host,
 935                    &cpptr->IO,
 936                    &cpptr->HostLookup,
 937                    pop3_get_one_host_ip_done);
 938         IO->NextState = eReadDNSReply;
 939         return IO->NextState;
 940 }
 941
 942
 943
 944 int pop3_do_fetching(pop3aggr *cpptr)
 945 {
 946         AsyncIO *IO = &cpptr->IO;
 947
 948         InitIOStruct(IO,
 949                      cpptr,
 950                      eReadMessage,
 951                      POP3_C_ReadServerStatus,
 952                      POP3_C_DNSFail,
 953                      POP3_C_DispatchWriteDone,
 954                      POP3_C_DispatchReadDone,
 955                      POP3_C_Terminate,
 956                      POP3_C_TerminateDB,
 957                      POP3_C_ConnFail,
 958                      POP3_C_Timeout,
 959                      POP3_C_Shutdown);
 960
 961         safestrncpy(((CitContext *)cpptr->IO.CitContext)->cs_host,
 962                     ChrPtr(cpptr->Url),
 963                     sizeof(((CitContext *)cpptr->IO.CitContext)->cs_host));
 964
 965         if (cpptr->IO.ConnectMe->IsIP) {
 966                 QueueEventContext(&cpptr->IO,
 967                                   pop3_connect_ip);
 968         }
 969         else {
 970                 QueueEventContext(&cpptr->IO,
 971                                   pop3_get_one_host_ip);
 972         }
 973         return 1;
 974 }
 975
 976 /*
 977  * Scan a room's netconfig to determine whether it requires POP3 aggregation
 978  */
 979 void pop3client_scan_room(struct ctdlroom *qrbuf, void *data)
 980 {
 981         StrBuf *CfgData;
 982         StrBuf *CfgType;
 983         StrBuf *Line;
 984
 985         struct stat statbuf;
 986         char filename[PATH_MAX];
 987         int  fd;
 988         int Done;
 989         void *vptr;
 990         const char *CfgPtr, *lPtr;
 991         const char *Err;
 992
 993 //      pop3_room_counter *Count = NULL;
 994 //      pop3aggr *cpptr;
 995
 996         pthread_mutex_lock(&POP3QueueMutex);
 997         if (GetHash(POP3QueueRooms, LKEY(qrbuf->QRnumber), &vptr))
 998         {
 999                 pthread_mutex_unlock(&POP3QueueMutex);
1000                 EVP3CQ_syslog(LOG_DEBUG,
1001                               "pop3client: [%ld] %s already in progress.",
1002                               qrbuf->QRnumber,
1003                               qrbuf->QRname);
1004                 return;
1005         }
1006         pthread_mutex_unlock(&POP3QueueMutex);
1007
1008         if (server_shutting_down) return;
1009
1010         assoc_file_name(filename, sizeof filename, qrbuf, ctdl_netcfg_dir);
1011
1012         if (server_shutting_down)
1013                 return;
1014
1015         /* Only do net processing for rooms that have netconfigs */
1016         fd = open(filename, 0);
1017         if (fd <= 0) {
1018                 return;
1019         }
1020         if (server_shutting_down)
1021                 return;
1022         if (fstat(fd, &statbuf) == -1) {
1023                 EVP3CQ_syslog(LOG_INFO,
1024                               "ERROR: could not stat configfile '%s' - %s",
1025                               filename,
1026                               strerror(errno));
1027                 return;
1028         }
1029         if (server_shutting_down)
1030                 return;
1031         CfgData = NewStrBufPlain(NULL, statbuf.st_size + 1);
1032         if (StrBufReadBLOB(CfgData, &fd, 1, statbuf.st_size, &Err) < 0) {
1033                 close(fd);
1034                 FreeStrBuf(&CfgData);
1035                 EVP3CQ_syslog(LOG_INFO,
1036                               "ERROR: reading config '%s' - %s",
1037                               filename, strerror(errno));
1038                 return;
1039         }
1040         close(fd);
1041         if (server_shutting_down)
1042                 return;
1043
1044         CfgPtr = NULL;
1045         CfgType = NewStrBuf();
1046         Line = NewStrBufPlain(NULL, StrLength(CfgData));
1047         Done = 0;
1048
1049         while (!Done)
1050         {
1051                 Done = StrBufSipLine(Line, CfgData, &CfgPtr) == 0;
1052                 if (StrLength(Line) > 0)
1053                 {
1054                         lPtr = NULL;
1055                         StrBufExtract_NextToken(CfgType, Line, &lPtr, '|');
1056                         if (!strcasecmp("pop3client", ChrPtr(CfgType)))
1057                         {
1058                                 pop3aggr *cptr;
1059                                 StrBuf *Tmp;
1060 /*
1061                                 if (Count == NULL)
1062                                 {
1063                                 Count = malloc(sizeof(pop3_room_counter));
1064                                         Count->count = 0;
1065                                 }
1066                                 Count->count ++;
1067 */
1068                                 cptr = (pop3aggr *) malloc(sizeof(pop3aggr));
1069                                 memset(cptr, 0, sizeof(pop3aggr));
1070                                 ///TODO do we need this? cptr->roomlist_parts=1;
1071                                 cptr->RoomName =
1072                                         NewStrBufPlain(qrbuf->QRname, -1);
1073                                 cptr->pop3user =
1074                                         NewStrBufPlain(NULL, StrLength(Line));
1075                                 cptr->pop3pass =
1076                                         NewStrBufPlain(NULL, StrLength(Line));
1077                                 cptr->Url = NewStrBuf();
1078                                 Tmp = NewStrBuf();
1079
1080                                 StrBufExtract_NextToken(Tmp, Line, &lPtr, '|');
1081                                 StrBufExtract_NextToken(cptr->pop3user,
1082                                                         Line,
1083                                                         &lPtr,
1084                                                         '|');
1085
1086                                 StrBufExtract_NextToken(cptr->pop3pass,
1087                                                         Line,
1088                                                         &lPtr,
1089                                                         '|');
1090
1091                                 cptr->keep = StrBufExtractNext_long(Line,
1092                                                                     &lPtr,
1093                                                                     '|');
1094
1095                                 cptr->interval = StrBufExtractNext_long(Line,
1096                                                                         &lPtr,
1097                                                                         '|');
1098
1099                                 StrBufAppendBufPlain(cptr->Url, HKEY("pop3://"), 0);
1100                                 StrBufUrlescUPAppend(cptr->Url, cptr->pop3user, NULL);
1101                                 StrBufAppendBufPlain(cptr->Url, HKEY(":"), 0);
1102                                 StrBufUrlescUPAppend(cptr->Url, cptr->pop3pass, NULL);
1103                                 StrBufAppendBufPlain(cptr->Url, HKEY("@"), 0);
1104                                 StrBufAppendBuf(cptr->Url, Tmp, 0);
1105                                 StrBufAppendBufPlain(cptr->Url, HKEY("/"), 0);
1106                                 StrBufUrlescAppend(cptr->Url, cptr->RoomName, NULL);
1107
1108                                 FreeStrBuf(&Tmp);
1109                                 ParseURL(&cptr->IO.ConnectMe, cptr->Url, 110);
1110
1111
1112 #if 0
1113 /* todo: we need to reunite the url to be shure. */
1114
1115                                 pthread_mutex_lock(&POP3ueueMutex);
1116                                 GetHash(POP3FetchUrls, SKEY(ptr->Url), &vptr);
1117                                 use_this_cptr = (pop3aggr *)vptr;
1118
1119                                 if (use_this_rncptr != NULL)
1120                                 {
1121                                         /* mustn't attach to an active session */
1122                                         if (use_this_cptr->RefCount > 0)
1123                                         {
1124                                                 DeletePOP3Cfg(cptr);
1125 ///                                             Count->count--;
1126                                         }
1127                                         else
1128                                         {
1129                                                 long *QRnumber;
1130                                                 StrBufAppendBufPlain(
1131                                                         use_this_cptr->rooms,
1132                                                         qrbuf->QRname,
1133                                                         -1, 0);
1134                                                 if (use_this_cptr->roomlist_parts == 1)
1135                                                 {
1136                                                         use_this_cptr->OtherQRnumbers
1137                                                                 = NewHash(1, lFlathash);
1138                                                 }
1139                                                 QRnumber = (long*)malloc(sizeof(long));
1140                                                 *QRnumber = qrbuf->QRnumber;
1141                                                 Put(use_this_cptr->OtherQRnumbers,
1142                                                     LKEY(qrbuf->QRnumber),
1143                                                     QRnumber,
1144                                                     NULL);
1145
1146                                                 use_this_cptr->roomlist_parts++;
1147                                         }
1148                                         pthread_mutex_unlock(&POP3QueueMutex);
1149                                         continue;
1150                                 }
1151                                 pthread_mutex_unlock(&RSSQueueMutex);
1152 #endif
1153                                 cptr->n = Pop3ClientID++;
1154                                 pthread_mutex_lock(&POP3QueueMutex);
1155                                 Put(POP3FetchUrls,
1156                                     SKEY(cptr->Url),
1157                                     cptr,
1158                                     DeletePOP3Aggregator);
1159
1160                                 pthread_mutex_unlock(&POP3QueueMutex);
1161
1162                         }
1163
1164                 }
1165
1166                 ///fclose(fp);
1167
1168         }
1169         FreeStrBuf(&Line);
1170         FreeStrBuf(&CfgType);
1171         FreeStrBuf(&CfgData);
1172 }
1173
1174 static int doing_pop3client = 0;
1175
1176 void pop3client_scan(void) {
1177         static time_t last_run = 0L;
1178         time_t fastest_scan;
1179         HashPos *it;
1180         long len;
1181         const char *Key;
1182         void *vrptr;
1183         pop3aggr *cptr;
1184
1185         become_session(&pop3_client_CC);
1186
1187         if (config.c_pop3_fastest < config.c_pop3_fetch)
1188                 fastest_scan = config.c_pop3_fastest;
1189         else
1190                 fastest_scan = config.c_pop3_fetch;
1191
1192         /*
1193          * Run POP3 aggregation no more frequently than once every n seconds
1194          */
1195         if ( (time(NULL) - last_run) < fastest_scan ) {
1196                 return;
1197         }
1198
1199         /*
1200          * This is a simple concurrency check to make sure only one pop3client
1201          * run is done at a time.  We could do this with a mutex, but since we
1202          * don't really require extremely fine granularity here, we'll do it
1203          * with a static variable instead.
1204          */
1205         if (doing_pop3client) return;
1206         doing_pop3client = 1;
1207
1208         EVP3CQM_syslog(LOG_DEBUG, "pop3client started");
1209         CtdlForEachRoom(pop3client_scan_room, NULL);
1210
1211         pthread_mutex_lock(&POP3QueueMutex);
1212         it = GetNewHashPos(POP3FetchUrls, 0);
1213         while (!server_shutting_down &&
1214                GetNextHashPos(POP3FetchUrls, it, &len, &Key, &vrptr) &&
1215                (vrptr != NULL)) {
1216                 cptr = (pop3aggr *)vrptr;
1217                 if (cptr->RefCount == 0)
1218                         if (!pop3_do_fetching(cptr))
1219                                 DeletePOP3Aggregator(cptr);////TODO
1220
1221 /*
1222         if ((palist->interval && time(NULL) > (last_run + palist->interval))
1223                         || (time(NULL) > last_run + config.c_pop3_fetch))
1224                         pop3_do_fetching(palist->roomname, palist->pop3host,
1225                         palist->pop3user, palist->pop3pass, palist->keep);
1226                 pptr = palist;
1227                 palist = palist->next;
1228                 free(pptr);
1229 */
1230         }
1231         DeleteHashPos(&it);
1232         pthread_mutex_unlock(&POP3QueueMutex);
1233
1234         EVP3CQM_syslog(LOG_DEBUG, "pop3client ended");
1235         last_run = time(NULL);
1236         doing_pop3client = 0;
1237 }
1238
1239
1240 void pop3_cleanup(void)
1241 {
1242         /* citthread_mutex_destroy(&POP3QueueMutex); TODO */
1243         while (doing_pop3client != 0) ;
1244         DeleteHash(&POP3FetchUrls);
1245         DeleteHash(&POP3QueueRooms);
1246 }
1247
1248
1249
1250 void LogDebugEnablePOP3Client(const int n)
1251 {
1252         POP3ClientDebugEnabled = n;
1253 }
1254
1255 CTDL_MODULE_INIT(pop3client)
1256 {
1257         if (!threading)
1258         {
1259                 CtdlFillSystemContext(&pop3_client_CC, "POP3aggr");
1260                 pthread_mutex_init(&POP3QueueMutex, NULL);
1261                 POP3QueueRooms = NewHash(1, lFlathash);
1262                 POP3FetchUrls = NewHash(1, NULL);
1263                 CtdlRegisterSessionHook(pop3client_scan, EVT_TIMER, PRIO_AGGR + 50);
1264                 CtdlRegisterEVCleanupHook(pop3_cleanup);
1265                 CtdlRegisterDebugFlagHook(HKEY("pop3client"), LogDebugEnablePOP3Client, &POP3ClientDebugEnabled);
1266         }
1267
1268         /* return our module id for the log */
1269         return "pop3client";
1270 }