webcit/messages.c

   1 // Functions which deal with the fetching and displaying of messages.
   2 //
   3 // Copyright (c) 1996-2022 by the citadel.org team
   4 //
   5 // This program is open source software.  We call it open source, not
   6 // free software, because Richard Stallman is a communist and an asshole.
   7 // No one has done more damage to open source software than Stallman (ok,
   8 // maybe Nat and Miguel have done more damage, but they were paid by
   9 // Microsoft to do so).  Richard Stallman is a far-left ultra-communist
  10 // who hates America, hates freedom, and deserves to be canceled.
  11 //
  12 // The program is licensed under the General Public License, version 3.
  13 //
  14 // This program is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18
  19 #include "webcit.h"
  20 #include "webserver.h"
  21 #include "dav.h"
  22 #include "calendar.h"
  23
  24 HashList *MimeRenderHandler = NULL;
  25 HashList *ReadLoopHandler = NULL;
  26 int dbg_analyze_msg = 0;
  27
  28 #define SUBJ_COL_WIDTH_PCT              50      /* Mailbox view column width */
  29 #define SENDER_COL_WIDTH_PCT            30      /* Mailbox view column width */
  30 #define DATE_PLUS_BUTTONS_WIDTH_PCT     20      /* Mailbox view column width */
  31
  32 void fixview() {
  33         /* workaround for json listview; its not useable directly */
  34         if (WC->CurRoom.view == VIEW_JSON_LIST) {
  35                 StrBuf *View = NewStrBuf();
  36                 StrBufPrintf(View, "%d", VIEW_MAILBOX);
  37                 putbstr("view", View);;
  38         }
  39 }
  40
  41
  42 int load_message(message_summary *Msg, StrBuf *FoundCharset, StrBuf **Error) {
  43         StrBuf *Buf;
  44         StrBuf *HdrToken;
  45         char buf[SIZ];
  46         int Done = 0;
  47         int state=0;
  48         int rc;
  49
  50         Buf = NewStrBuf();
  51         if (Msg->PartNum != NULL) {
  52                 serv_printf("MSG4 %ld|%s", Msg->msgnum, ChrPtr(Msg->PartNum));
  53         }
  54         else {
  55                 serv_printf("MSG4 %ld", Msg->msgnum);
  56         }
  57
  58         StrBuf_ServGetln(Buf);
  59         if (GetServerStatus(Buf, NULL) != 1) {
  60                 *Error = NewStrBuf();
  61                 StrBufAppendPrintf(*Error, "<strong>");
  62                 StrBufAppendPrintf(*Error, _("ERROR:"));
  63                 StrBufAppendPrintf(*Error, "</strong> %s<br>\n", &buf[4]);
  64                 FreeStrBuf(&Buf);
  65                 return 0;
  66         }
  67
  68         /* begin everythingamundo table */
  69         HdrToken = NewStrBuf();
  70         while (!Done && StrBuf_ServGetln(Buf)>=0) {
  71                 if ( (StrLength(Buf)==3) &&
  72                     !strcmp(ChrPtr(Buf), "000"))
  73                 {
  74                         Done = 1;
  75                         if (state < 2) {
  76                                 if (Msg->MsgBody->Data == NULL)
  77                                         Msg->MsgBody->Data = NewStrBuf();
  78                                 Msg->MsgBody->ContentType = NewStrBufPlain(HKEY("text/html"));
  79                                 StrBufAppendPrintf(Msg->MsgBody->Data, "<div><i>");
  80                                 StrBufAppendPrintf(Msg->MsgBody->Data, _("Empty message"));
  81                                 StrBufAppendPrintf(Msg->MsgBody->Data, "</i><br><br>\n");
  82                                 StrBufAppendPrintf(Msg->MsgBody->Data, "</div>\n");
  83                         }
  84                         break;
  85                 }
  86                 switch (state) {
  87                 case 0:/* Citadel Message Headers */
  88                         if (StrLength(Buf) == 0) {
  89                                 state ++;
  90                                 break;
  91                         }
  92                         StrBufExtract_token(HdrToken, Buf, 0, '=');
  93                         StrBufCutLeft(Buf, StrLength(HdrToken) + 1);
  94
  95                         /* look up one of the examine_* functions to parse the content */
  96                         rc =  EvaluateMsgHdr(SKEY(HdrToken), Msg, Buf, FoundCharset);
  97                         if (rc == 1) {
  98                                 state++;
  99                         }
 100                         /* TODO:
 101                         else LogError(Target,
 102                                       __FUNCTION__,
 103                                       "don't know how to handle message header[%s]\n",
 104                                       ChrPtr(HdrToken));
 105                          */
 106                         break;
 107                 case 1:/* Message Mime Header */
 108                         if (StrLength(Buf) == 0) {
 109                                 state++;
 110                                 if (Msg->MsgBody->ContentType == NULL)
 111                                         /* end of header or no header? */
 112                                         Msg->MsgBody->ContentType = NewStrBufPlain(HKEY("text/plain"));
 113                                  /* usual end of mime header */
 114                         }
 115                         else
 116                         {
 117                                 StrBufExtract_token(HdrToken, Buf, 0, ':');
 118                                 if (StrLength(HdrToken) > 0) {
 119                                         StrBufCutLeft(Buf, StrLength(HdrToken) + 1);
 120                                         /* the examine*'s know how to do with mime headers too... */
 121                                         EvaluateMsgHdr(SKEY(HdrToken), Msg, Buf, FoundCharset);
 122
 123                                         break;
 124                                 }
 125                         }
 126                 case 2: /* Message Body */
 127
 128                         if (Msg->MsgBody->size_known > 0) {
 129                                 StrBuf_ServGetBLOBBuffered(Msg->MsgBody->Data, Msg->MsgBody->length);
 130                                 state ++;
 131                                 /*/ todo: check next line, if not 000, append following lines */
 132                         }
 133                         else if (1){
 134                                 if (StrLength(Msg->MsgBody->Data) > 0)
 135                                         StrBufAppendBufPlain(Msg->MsgBody->Data, "\n", 1, 0);
 136                                 StrBufAppendBuf(Msg->MsgBody->Data, Buf, 0);
 137                         }
 138                         break;
 139                 case 3:
 140                         StrBufAppendBuf(Msg->MsgBody->Data, Buf, 0);
 141                         break;
 142                 }
 143         }
 144
 145         if (Msg->AllAttach == NULL)
 146                 Msg->AllAttach = NewHash(1,NULL);
 147         /* now we put the body mimepart we read above into the mimelist */
 148         Put(Msg->AllAttach, SKEY(Msg->MsgBody->PartNum), Msg->MsgBody, DestroyMime);
 149
 150         FreeStrBuf(&Buf);
 151         FreeStrBuf(&HdrToken);
 152         return 1;
 153 }
 154
 155
 156 /*
 157  * Display a message to the user
 158  *
 159  * msgnum               Message number to display
 160  * printable_view       Nonzero to display a printable view
 161  * section              Optional for encapsulated message/rfc822 submessage
 162  */
 163 int read_message(StrBuf *Target, const char *tmpl, long tmpllen, long msgnum, const StrBuf *PartNum, const StrBuf **OutMime, WCTemplputParams *TP) {
 164         StrBuf *Buf;
 165         StrBuf *FoundCharset;
 166         HashPos  *it;
 167         void *vMime;
 168         message_summary *Msg = NULL;
 169         void *vHdr;
 170         long len;
 171         const char *Key;
 172         WCTemplputParams SuperTP;
 173         WCTemplputParams SubTP;
 174         StrBuf *Error = NULL;
 175
 176         memset(&SuperTP, 0, sizeof(WCTemplputParams));
 177         memset(&SubTP, 0, sizeof(WCTemplputParams));
 178
 179         Buf = NewStrBuf();
 180         FoundCharset = NewStrBuf();
 181         Msg = (message_summary *)malloc(sizeof(message_summary));
 182         if (!Msg) {
 183                 syslog(LOG_DEBUG, "malloc() error");
 184                 TRACE;
 185         }
 186         memset(Msg, 0, sizeof(message_summary));
 187         Msg->msgnum = msgnum;
 188         Msg->PartNum = PartNum;
 189         Msg->MsgBody =  (wc_mime_attachment*) malloc(sizeof(wc_mime_attachment));
 190         if (!Msg->MsgBody) {
 191                 syslog(LOG_DEBUG, "malloc() error");
 192                 TRACE;
 193         }
 194         memset(Msg->MsgBody, 0, sizeof(wc_mime_attachment));
 195         Msg->MsgBody->msgnum = msgnum;
 196
 197         if (!load_message(Msg, FoundCharset, &Error)) {
 198                 StrBufAppendBuf(Target, Error, 0);
 199                 FreeStrBuf(&Error);
 200         }
 201
 202         /* Extract just the content-type (omit attributes such as "charset") */
 203         StrBufExtract_token(Buf, Msg->MsgBody->ContentType, 0, ';');
 204         StrBufTrim(Buf);
 205         StrBufLowerCase(Buf);
 206
 207         StackContext(TP, &SuperTP, Msg, CTX_MAILSUM, 0, NULL);
 208         {
 209                 /* Locate a renderer capable of converting this MIME part into HTML */
 210                 if (GetHash(MimeRenderHandler, SKEY(Buf), &vHdr) &&
 211                     (vHdr != NULL)) {
 212                         RenderMimeFuncStruct *Render;
 213
 214                         StackContext(&SuperTP, &SubTP, Msg->MsgBody, CTX_MIME_ATACH, 0, NULL);
 215                         {
 216                                 Render = (RenderMimeFuncStruct*)vHdr;
 217                                 Render->f(Target, &SubTP, FoundCharset);
 218                         }
 219                         UnStackContext(&SubTP);
 220                 }
 221
 222                 if (StrLength(Msg->reply_references)> 0) {
 223                         /* Trim down excessively long lists of thread references.  We eliminate the
 224                          * second one in the list so that the thread root remains intact.
 225                          */
 226                         int rrtok = num_tokens(ChrPtr(Msg->reply_references), '|');
 227                         int rrlen = StrLength(Msg->reply_references);
 228                         if ( ((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10) ) {
 229                                 StrBufRemove_token(Msg->reply_references, 1, '|');
 230                         }
 231                 }
 232
 233                 /* now check if we need to translate some mimeparts, and remove the duplicate */
 234                 it = GetNewHashPos(Msg->AllAttach, 0);
 235                 while (GetNextHashPos(Msg->AllAttach, it, &len, &Key, &vMime) &&
 236                        (vMime != NULL)) {
 237                         StackContext(&SuperTP, &SubTP, vMime, CTX_MIME_ATACH, 0, NULL);
 238                         {
 239                                 evaluate_mime_part(Target, &SubTP);
 240                         }
 241                         UnStackContext(&SubTP);
 242                 }
 243                 DeleteHashPos(&it);
 244                 *OutMime = DoTemplate(tmpl, tmpllen, Target, &SuperTP);
 245         }
 246         UnStackContext(&SuperTP);
 247
 248         DestroyMessageSummary(Msg);
 249         FreeStrBuf(&FoundCharset);
 250         FreeStrBuf(&Buf);
 251         return 1;
 252 }
 253
 254
 255 long HttpStatus(long CitadelStatus) {
 256         long httpstatus = 502;
 257
 258         switch (MAJORCODE(CitadelStatus))
 259         {
 260         case LISTING_FOLLOWS:
 261         case CIT_OK:
 262                 httpstatus = 201;
 263                 break;
 264         case ERROR:
 265                 switch (MINORCODE(CitadelStatus))
 266                 {
 267                 case INTERNAL_ERROR:
 268                         httpstatus = 403;
 269                         break;
 270
 271                 case TOO_BIG:
 272                 case ILLEGAL_VALUE:
 273                 case HIGHER_ACCESS_REQUIRED:
 274                 case MAX_SESSIONS_EXCEEDED:
 275                 case RESOURCE_BUSY:
 276                 case RESOURCE_NOT_OPEN:
 277                 case NOT_HERE:
 278                 case INVALID_FLOOR_OPERATION:
 279                 case FILE_NOT_FOUND:
 280                 case ROOM_NOT_FOUND:
 281                         httpstatus = 409;
 282                         break;
 283
 284                 case MESSAGE_NOT_FOUND:
 285                 case ALREADY_EXISTS:
 286                         httpstatus = 403;
 287                         break;
 288
 289                 case NO_SUCH_SYSTEM:
 290                         httpstatus = 502;
 291                         break;
 292
 293                 default:
 294                 case CMD_NOT_SUPPORTED:
 295                 case PASSWORD_REQUIRED:
 296                 case ALREADY_LOGGED_IN:
 297                 case USERNAME_REQUIRED:
 298                 case NOT_LOGGED_IN:
 299                 case SERVER_SHUTTING_DOWN:
 300                 case NO_SUCH_USER:
 301                 case ASYNC_GEXP:
 302                         httpstatus = 502;
 303                         break;
 304                 }
 305                 break;
 306
 307         default:
 308         case BINARY_FOLLOWS:
 309         case SEND_BINARY:
 310         case START_CHAT_MODE:
 311         case ASYNC_MSG:
 312         case MORE_DATA:
 313         case SEND_LISTING:
 314                 httpstatus = 502; /* aeh... whut? */
 315                 break;
 316         }
 317
 318         return httpstatus;
 319 }
 320
 321
 322 /*
 323  * Unadorned HTML output of an individual message, suitable
 324  * for placing in a hidden iframe, for printing, or whatever
 325  */
 326 void handle_one_message(void) {
 327         long CitStatus = ERROR + NOT_HERE;
 328         int CopyMessage = 0;
 329         const StrBuf *Destination;
 330         void *vLine;
 331         const StrBuf *Mime;
 332         long msgnum = 0L;
 333         const StrBuf *Tmpl;
 334         StrBuf *CmdBuf = NULL;
 335         const char *pMsg;
 336
 337         pMsg = strchr(ChrPtr(WC->Hdr->HR.ReqLine), '/');
 338         if (pMsg == NULL) {
 339                 HttpStatus(CitStatus);
 340                 return;
 341         }
 342
 343         msgnum = atol(pMsg + 1);
 344         StrBufCutAt(WC->Hdr->HR.ReqLine, 0, pMsg);
 345         gotoroom(WC->Hdr->HR.ReqLine);
 346         switch (WC->Hdr->HR.eReqType)
 347         {
 348         case eGET:
 349         case ePOST:
 350                 Tmpl = sbstr("template");
 351                 if (StrLength(Tmpl) > 0)
 352                         read_message(WC->WBuf, SKEY(Tmpl), msgnum, NULL, &Mime, NULL);
 353                 else
 354                         read_message(WC->WBuf, HKEY("view_message"), msgnum, NULL, &Mime, NULL);
 355                 http_transmit_thing(ChrPtr(Mime), 0);
 356                 break;
 357         case eDELETE:
 358                 CmdBuf = NewStrBuf ();
 359                 if ((WC->CurRoom.RAFlags & UA_ISTRASH) != 0) {  /* Delete from Trash is a real delete */
 360                         serv_printf("DELE %ld", msgnum);
 361                 }
 362                 else {                  /* Otherwise move it to Trash */
 363                         serv_printf("MOVE %ld|_TRASH_|0", msgnum);
 364                 }
 365                 StrBuf_ServGetln(CmdBuf);
 366                 GetServerStatusMsg(CmdBuf, &CitStatus, 1, 0);
 367                 HttpStatus(CitStatus);
 368                 break;
 369         case eCOPY:
 370                 CopyMessage = 1;
 371         case eMOVE:
 372                 if (GetHash(WC->Hdr->HTTPHeaders, HKEY("DESTINATION"), &vLine) &&
 373                     (vLine!=NULL)) {
 374                         Destination = (StrBuf*) vLine;
 375                         serv_printf("MOVE %ld|%s|%d", msgnum, ChrPtr(Destination), CopyMessage);
 376                         StrBuf_ServGetln(CmdBuf);
 377                         GetServerStatusMsg(CmdBuf, NULL, 1, 0);
 378                         GetServerStatus(CmdBuf, &CitStatus);
 379                         HttpStatus(CitStatus);
 380                 }
 381                 else
 382                         HttpStatus(500);
 383                 break;
 384         default:
 385                 break;
 386
 387         }
 388 }
 389
 390
 391 /*
 392  * Unadorned HTML output of an individual message, suitable
 393  * for placing in a hidden iframe, for printing, or whatever
 394  */
 395 void embed_message(void) {
 396         const StrBuf *Mime;
 397         long msgnum = 0L;
 398         const StrBuf *Tmpl;
 399         StrBuf *CmdBuf = NULL;
 400
 401         msgnum = StrBufExtract_long(WC->Hdr->HR.ReqLine, 0, '/');
 402         if (msgnum <= 0) return;
 403
 404         switch (WC->Hdr->HR.eReqType)
 405         {
 406         case eGET:
 407         case ePOST:
 408                 Tmpl = sbstr("template");
 409                 if (StrLength(Tmpl) > 0)
 410                         read_message(WC->WBuf, SKEY(Tmpl), msgnum, NULL, &Mime, NULL);
 411                 else
 412                         read_message(WC->WBuf, HKEY("view_message"), msgnum, NULL, &Mime, NULL);
 413                 http_transmit_thing(ChrPtr(Mime), 0);
 414                 break;
 415         case eDELETE:
 416                 CmdBuf = NewStrBuf ();
 417                 if ((WC->CurRoom.RAFlags & UA_ISTRASH) != 0) {  /* Delete from Trash is a real delete */
 418                         serv_printf("DELE %ld", msgnum);
 419                 }
 420                 else {                  /* Otherwise move it to Trash */
 421                         serv_printf("MOVE %ld|_TRASH_|0", msgnum);
 422                 }
 423                 StrBuf_ServGetln(CmdBuf);
 424                 GetServerStatusMsg(CmdBuf, NULL, 1, 0);
 425                 break;
 426         default:
 427                 break;
 428
 429         }
 430 }
 431
 432
 433 /*
 434  * Printable view of a message
 435  */
 436 void print_message(void) {
 437         long msgnum = 0L;
 438         const StrBuf *Mime;
 439
 440         msgnum = StrBufExtract_long(WC->Hdr->HR.ReqLine, 0, '/');
 441         output_headers(0, 0, 0, 0, 0, 0);
 442
 443         hprintf("Content-type: text/html\r\n"
 444                 "Server: " PACKAGE_STRING "\r\n"
 445                 "Connection: close\r\n");
 446
 447         begin_burst();
 448
 449         read_message(WC->WBuf, HKEY("view_message_print"), msgnum, NULL, &Mime, NULL);
 450
 451         wDumpContent(0);
 452 }
 453
 454
 455 /*
 456  * Display a message's headers
 457  */
 458 void display_headers(void) {
 459         long msgnum = 0L;
 460         char buf[1024];
 461
 462         msgnum = StrBufExtract_long(WC->Hdr->HR.ReqLine, 0, '/');
 463         output_headers(0, 0, 0, 0, 0, 0);
 464
 465         hprintf("Content-type: text/plain\r\n"
 466                 "Server: %s\r\n"
 467                 "Connection: close\r\n",
 468                 PACKAGE_STRING);
 469         begin_burst();
 470
 471         serv_printf("MSG2 %ld|1", msgnum);
 472         serv_getln(buf, sizeof buf);
 473         if (buf[0] == '1') {
 474                 while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 475                         wc_printf("%s\n", buf);
 476                 }
 477         }
 478
 479         wDumpContent(0);
 480 }
 481
 482
 483 /*
 484  * load message pointers from the server for a "read messages" operation
 485  *
 486  * servcmd:             the citadel command to send to the citserver
 487  */
 488 int load_msg_ptrs(const char *servcmd,
 489                   const char *filter,
 490                   StrBuf *FoundCharset,
 491                   SharedMessageStatus *Stat,
 492                   void **ViewSpecific,
 493                   load_msg_ptrs_detailheaders LH,
 494                   StrBuf *FetchMessageList,
 495                   eMessageField *MessageFieldList,
 496                   long HeaderCount)
 497 {
 498         message_summary *Msg;
 499         StrBuf *Buf, *Buf2;
 500         long len;
 501         int n;
 502         int skipit;
 503         const char *Ptr = NULL;
 504         int StatMajor;
 505
 506         Stat->lowest_found = LONG_MAX;
 507         Stat->highest_found = LONG_MIN;
 508
 509         if (WC->summ != NULL) {
 510                 DeleteHash(&WC->summ);
 511         }
 512         WC->summ = NewHash(1, Flathash);
 513
 514         Buf = NewStrBuf();
 515         serv_puts(servcmd);
 516         StrBuf_ServGetln(Buf);
 517         StatMajor = GetServerStatus(Buf, NULL);
 518         switch (StatMajor) {
 519         case 1:
 520                 break;
 521         case 8:
 522                 if (filter != NULL) {
 523                         serv_puts(filter);
 524                         serv_puts("000");
 525                         break;
 526                 }
 527                 else if (FetchMessageList != NULL) {
 528                         serv_putbuf(FetchMessageList);
 529                         break;
 530                 }
 531                 /* fall back to empty filter in case of we were fooled... */
 532                 serv_puts("");
 533                 serv_puts("000");
 534                 break;
 535         default:
 536                 FreeStrBuf(&Buf);
 537                 return (Stat->nummsgs);
 538         }
 539         Buf2 = NewStrBuf();
 540         while (len = StrBuf_ServGetln(Buf), ((len >= 0) && ((len != 3) || strcmp(ChrPtr(Buf), "000")!= 0))) {
 541                 if (Stat->nummsgs < Stat->maxload) {
 542                         skipit = 0;
 543                         Ptr = NULL;
 544                         Msg = (message_summary*)malloc(sizeof(message_summary));
 545                         if (!Msg) {
 546                                 syslog(LOG_DEBUG, "malloc() error");
 547                                 TRACE;
 548                         }
 549                         memset(Msg, 0, sizeof(message_summary));
 550
 551                         Msg->msgnum = StrBufExtractNext_long(Buf, &Ptr, '|');
 552                         Msg->date = StrBufExtractNext_long(Buf, &Ptr, '|');
 553                         if (MessageFieldList != NULL) {
 554                                 long i;
 555                                 for (i = 0; i < HeaderCount; i++) {
 556                                         StrBufExtract_NextToken(Buf2, Buf, &Ptr, '|');
 557                                         if (StrLength(Buf2) > 0) {
 558                                                 EvaluateMsgHdrEnum(MessageFieldList[i], Msg, Buf2, FoundCharset);
 559                                         }
 560                                 }
 561                         }
 562                         else {
 563                                 if (Stat->nummsgs == 0) {
 564                                         if (Msg->msgnum < Stat->lowest_found) {
 565                                                 Stat->lowest_found = Msg->msgnum;
 566                                         }
 567                                         if (Msg->msgnum > Stat->highest_found) {
 568                                                 Stat->highest_found = Msg->msgnum;
 569                                         }
 570                                 }
 571
 572                                 if ((Msg->msgnum == 0) && (StrLength(Buf) < 32)) {
 573                                         free(Msg);
 574                                         continue;
 575                                 }
 576                         }
 577                         /*
 578                          * as citserver probably gives us messages in forward date sorting
 579                          * nummsgs should be the same order as the message date.
 580                          */
 581                         if (Msg->date == 0) {
 582                                 Msg->date = Stat->nummsgs;
 583                                 if (StrLength(Buf) < 32)
 584                                         skipit = 1;
 585                         }
 586                         if ((!skipit) && (LH != NULL)) {
 587                                 if (!LH(Buf, &Ptr, Msg, Buf2, ViewSpecific)){
 588                                         free(Msg);
 589                                         continue;
 590                                 }
 591                         }
 592                         n = Msg->msgnum;
 593                         Put(WC->summ, (const char *)&n, sizeof(n), Msg, DestroyMessageSummary);
 594                 }
 595                 Stat->nummsgs++;
 596         }
 597         FreeStrBuf(&Buf2);
 598         FreeStrBuf(&Buf);
 599         return (Stat->nummsgs);
 600 }
 601
 602
 603 /*
 604  * sets FlagToSet for each of ScanMe that appears in MatchMSet
 605  * ScanMe:       List of BasicMsgStruct to be searched it MatchSet
 606  * MatchMSet:    MSet we want to flag
 607  * FlagToSet:    Flag to set on each BasicMsgStruct->Flags if in MSet
 608  */
 609 long SetFlagsFromMSet(HashList *ScanMe, MSet *MatchMSet, int FlagToSet, int Reverse) {
 610         const char *HashKey;
 611         long HKLen;
 612         long count = 0;
 613         HashPos *at;
 614         void *vMsg;
 615         message_summary *Msg;
 616
 617         at = GetNewHashPos(ScanMe, 0);
 618         while (GetNextHashPos(ScanMe, at, &HKLen, &HashKey, &vMsg)) {
 619                 /* Are you a new message, or an old message? */
 620                 Msg = (message_summary*) vMsg;
 621                 if (Reverse && IsInMSetList(MatchMSet, Msg->msgnum)) {
 622                         Msg->Flags = Msg->Flags | FlagToSet;
 623                         count++;
 624                 }
 625                 else if (!Reverse && !IsInMSetList(MatchMSet, Msg->msgnum)) {
 626                         Msg->Flags = Msg->Flags | FlagToSet;
 627                         count++;
 628                 }
 629         }
 630         DeleteHashPos(&at);
 631         return count;
 632 }
 633
 634
 635 long load_seen_flags(void) {
 636         long count = 0;
 637         StrBuf *OldMsg;
 638         MSet *MatchMSet;
 639
 640         OldMsg = NewStrBuf();
 641         serv_puts("GTSN");
 642         StrBuf_ServGetln(OldMsg);
 643         if (GetServerStatus(OldMsg, NULL) == 2) {
 644                 StrBufCutLeft(OldMsg, 4);
 645         }
 646         else {
 647                 FreeStrBuf(&OldMsg);
 648                 return 0;
 649         }
 650
 651         if (ParseMSet(&MatchMSet, OldMsg))
 652         {
 653                 count = SetFlagsFromMSet(WC->summ, MatchMSet, MSGFLAG_READ, 0);
 654         }
 655         DeleteMSet(&MatchMSet);
 656         FreeStrBuf(&OldMsg);
 657         return count;
 658 }
 659
 660 extern readloop_struct rlid[];
 661
 662 typedef struct _RoomRenderer{
 663         int RoomType;
 664
 665         GetParamsGetServerCall_func GetParamsGetServerCall;
 666
 667         PrintViewHeader_func PrintPageHeader;
 668         PrintViewHeader_func PrintViewHeader;
 669         LoadMsgFromServer_func LoadMsgFromServer;
 670         RenderView_or_Tail_func RenderView_or_Tail;
 671         View_Cleanup_func ViewCleanup;
 672         load_msg_ptrs_detailheaders LHParse;
 673         long HeaderCount;
 674         StrBuf *FetchMessageList;
 675         eMessageField *MessageFieldList;
 676 } RoomRenderer;
 677
 678
 679 /*
 680  * command loop for reading messages
 681  *
 682  * Set oper to "readnew" or "readold" or "readfwd" or "headers" or "readgt" or "readlt" or "do_search"
 683  */
 684 void readloop(long oper, eCustomRoomRenderer ForceRenderer) {
 685         RoomRenderer *ViewMsg;
 686         void *vViewMsg;
 687         void *vMsg;
 688         message_summary *Msg;
 689         char cmd[256] = "";
 690         char filter[256] = "";
 691         int i, r;
 692         HashPos *at;
 693         const char *HashKey;
 694         long HKLen;
 695         WCTemplputParams SubTP;
 696         SharedMessageStatus Stat;
 697         void *ViewSpecific = NULL;
 698
 699         if (havebstr("is_summary") && (1 == (ibstr("is_summary")))) {
 700                 WC->CurRoom.view = VIEW_MAILBOX;
 701         }
 702
 703         if (havebstr("view")) {
 704                 WC->CurRoom.view = ibstr("view");
 705         }
 706
 707         memset(&Stat, 0, sizeof(SharedMessageStatus));
 708         Stat.maxload = 10000;
 709         Stat.lowest_found = (-1);
 710         Stat.highest_found = (-1);
 711         if (ForceRenderer == eUseDefault)
 712                 GetHash(ReadLoopHandler, IKEY(WC->CurRoom.view), &vViewMsg);
 713         else
 714                 GetHash(ReadLoopHandler, IKEY(ForceRenderer), &vViewMsg);
 715         if (vViewMsg == NULL) {
 716                 WC->CurRoom.view = VIEW_BBS;
 717                 GetHash(ReadLoopHandler, IKEY(WC->CurRoom.view), &vViewMsg);
 718         }
 719         if (vViewMsg == NULL) {
 720                 return;                 /* TODO: print message */
 721         }
 722
 723         ViewMsg = (RoomRenderer*) vViewMsg;
 724         if (ViewMsg->PrintPageHeader == NULL)
 725                 output_headers(1, 1, 1, 0, 0, 0);
 726         else
 727                 ViewMsg->PrintPageHeader(&Stat, ViewSpecific);
 728
 729         if (ViewMsg->GetParamsGetServerCall != NULL) {
 730                 r = ViewMsg->GetParamsGetServerCall(
 731                        &Stat,
 732                        &ViewSpecific,
 733                        oper,
 734                        cmd, sizeof(cmd),
 735                        filter, sizeof(filter)
 736                 );
 737         } else {
 738                 r = 0;
 739         }
 740
 741         switch(r)
 742         {
 743         case 400:
 744         case 404:
 745
 746                 return;
 747         case 300: /* the callback hook should do the work for us here, since he knows what to do. */
 748                 return;
 749         case 200:
 750         default:
 751                 break;
 752         }
 753         if (!IsEmptyStr(cmd)) {
 754                 const char *p = NULL;
 755                 StrBuf *FoundCharset = NULL;
 756                 if (!IsEmptyStr(filter))
 757                         p = filter;
 758                 if (ViewMsg->HeaderCount > 0) {
 759                         FoundCharset = NewStrBuf();
 760                 }
 761                 Stat.nummsgs = load_msg_ptrs(cmd, p,
 762                                              FoundCharset,
 763                                              &Stat,
 764                                              &ViewSpecific,
 765                                              ViewMsg->LHParse,
 766                                              ViewMsg->FetchMessageList,
 767                                              ViewMsg->MessageFieldList,
 768                                              ViewMsg->HeaderCount);
 769                 FreeStrBuf(&FoundCharset);
 770         }
 771
 772         if (Stat.sortit) {
 773                 CompareFunc SortIt;
 774                 StackContext(NULL, &SubTP, NULL, CTX_MAILSUM, 0, NULL);
 775                 {
 776                         SortIt =  RetrieveSort(&SubTP,
 777                                                NULL, 0,
 778                                                HKEY("date"),
 779                                                Stat.defaultsortorder);
 780                 }
 781                 UnStackContext(&SubTP);
 782                 if (SortIt != NULL)
 783                         SortByPayload(WC->summ, SortIt);
 784         }
 785         if (Stat.startmsg < 0) {
 786                 Stat.startmsg =  0;
 787         }
 788
 789         if (Stat.load_seen) Stat.numNewmsgs = load_seen_flags();
 790
 791         /*
 792          * Print any inforation above the message list...
 793          */
 794         if (ViewMsg->PrintViewHeader != NULL)
 795                 ViewMsg->PrintViewHeader(&Stat, &ViewSpecific);
 796
 797         WC->startmsg =  Stat.startmsg;
 798         WC->maxmsgs = Stat.maxmsgs;
 799         WC->num_displayed = 0;
 800
 801         /* Put some helpful data in vars for mailsummary_json */
 802         {
 803                 StrBuf *Foo;
 804
 805                 Foo = NewStrBuf ();
 806                 StrBufPrintf(Foo, "%ld", Stat.nummsgs);
 807                 PutBstr(HKEY("__READLOOP:TOTALMSGS"), NewStrBufDup(Foo)); /* keep Foo! */
 808
 809                 StrBufPrintf(Foo, "%ld", Stat.numNewmsgs);
 810                 PutBstr(HKEY("__READLOOP:NEWMSGS"), NewStrBufDup(Foo)); /* keep Foo! */
 811
 812                 StrBufPrintf(Foo, "%ld", Stat.startmsg);
 813                 PutBstr(HKEY("__READLOOP:STARTMSG"), Foo); /* store Foo elsewhere, descope it here. */
 814         }
 815
 816         /*
 817          * iterate over each message. if we need to load an attachment, do it here.
 818          */
 819
 820         if ((ViewMsg->LoadMsgFromServer != NULL) && (!IsEmptyStr(cmd))) {
 821                 at = GetNewHashPos(WC->summ, 0);
 822                 Stat.num_displayed = i = 0;
 823                 while ( GetNextHashPos(WC->summ, at, &HKLen, &HashKey, &vMsg)) {
 824                         Msg = (message_summary*) vMsg;
 825                         if ((Msg->msgnum >= Stat.startmsg) && (Stat.num_displayed <= Stat.maxmsgs)) {
 826                                 ViewMsg->LoadMsgFromServer(&Stat,
 827                                                            &ViewSpecific,
 828                                                            Msg,
 829                                                            (Msg->Flags & MSGFLAG_READ) != 0,
 830                                                            i);
 831                         }
 832                         i++;
 833                 }
 834                 DeleteHashPos(&at);
 835         }
 836
 837         /*
 838          * Done iterating the message list. now tasks we want to do after.
 839          */
 840         if (ViewMsg->RenderView_or_Tail != NULL)
 841                 ViewMsg->RenderView_or_Tail(&Stat, &ViewSpecific, oper);
 842
 843         if (ViewMsg->ViewCleanup != NULL)
 844                 ViewMsg->ViewCleanup(&ViewSpecific);
 845
 846         WC->startmsg = 0;
 847         WC->maxmsgs = 0;
 848         if (WC->summ != NULL) {
 849                 DeleteHash(&WC->summ);
 850         }
 851 }
 852
 853
 854 // Back end for post_message()
 855 // This is where the actual message gets transmitted to the server.
 856 void post_mime_to_server(void) {
 857         char top_boundary[SIZ];
 858         char alt_boundary[SIZ];
 859         int is_multipart = 0;
 860         static int seq = 0;
 861         wc_mime_attachment *att;
 862         char *encoded;
 863         size_t encoded_length;
 864         size_t encoded_strlen;
 865         char *txtmail = NULL;
 866         int include_text_alt = 0;       /* Set to nonzero to include multipart/alternative text/plain */
 867
 868         sprintf(top_boundary, "Citadel--Multipart--%s--%04x--%04x",
 869                 ChrPtr(WC->serv_info->serv_fqdn),
 870                 getpid(),
 871                 ++seq
 872         );
 873         sprintf(alt_boundary, "Citadel--Multipart--%s--%04x--%04x",
 874                 ChrPtr(WC->serv_info->serv_fqdn),
 875                 getpid(),
 876                 ++seq
 877         );
 878
 879         /* RFC2045 requires this, and some clients look for it... */
 880         serv_puts("MIME-Version: 1.0");
 881         serv_puts("X-Mailer: " PACKAGE_STRING);
 882
 883         /* If there are attachments, we have to do multipart/mixed */
 884         syslog(LOG_DEBUG, "This message will have %d attachments", GetCount(WC->attachments));
 885         if (GetCount(WC->attachments) > 0) {
 886                 is_multipart = 1;
 887         }
 888
 889         /* Only do multipart/alternative for mailboxes.  BBS and Wiki rooms don't need it. */
 890         if ((WC->CurRoom.view == VIEW_MAILBOX) || (WC->CurRoom.view == VIEW_JSON_LIST)) {
 891                 include_text_alt = 1;
 892         }
 893
 894         if (is_multipart) {
 895                 /* Remember, serv_printf() appends an extra newline */
 896                 serv_printf("Content-type: multipart/mixed; boundary=\"%s\"\n", top_boundary);
 897                 serv_printf("This is a multipart message in MIME format.\n");
 898                 serv_printf("--%s", top_boundary);
 899         }
 900
 901         /* Remember, serv_printf() appends an extra newline */
 902         if (include_text_alt) {
 903                 StrBuf *Buf;
 904                 serv_printf("Content-type: multipart/alternative; boundary=\"%s\"\n", alt_boundary);
 905                 serv_printf("This is a multipart message in MIME format.\n");
 906                 serv_printf("--%s", alt_boundary);
 907
 908                 serv_puts("Content-type: text/plain; charset=utf-8");
 909                 serv_puts("Content-Transfer-Encoding: quoted-printable");
 910                 serv_puts("");
 911                 txtmail = html_to_ascii(bstr("msgtext"), 0, 80);
 912                 Buf = NewStrBufPlain(txtmail, -1);
 913                 free(txtmail);
 914
 915                 text_to_server_qp(Buf);     /* Transmit message in quoted-printable encoding */
 916                 FreeStrBuf(&Buf);
 917                 serv_printf("\n--%s", alt_boundary);
 918         }
 919
 920         serv_puts("Content-type: text/html; charset=utf-8");
 921         serv_puts("Content-Transfer-Encoding: quoted-printable");
 922         serv_puts("");
 923         serv_puts("<html><body>\r\n");
 924         text_to_server_qp(sbstr("msgtext"));    /* Transmit message in quoted-printable encoding */
 925         serv_puts("</body></html>\r\n");
 926
 927         if (include_text_alt) {
 928                 serv_printf("--%s--", alt_boundary);
 929         }
 930
 931         if (is_multipart) {
 932                 long len;
 933                 const char *Key;
 934                 void *vAtt;
 935                 HashPos  *it;
 936
 937                 /* Add in the attachments */
 938                 it = GetNewHashPos(WC->attachments, 0);
 939                 while (GetNextHashPos(WC->attachments, it, &len, &Key, &vAtt)) {
 940                         att = (wc_mime_attachment *)vAtt;
 941                         if (att->length == 0)
 942                                 continue;
 943
 944                         encoded_length = att->length + (att->length / 2);       // make it 150% of the original size for encoding
 945                         encoded = malloc(encoded_length);
 946                         if (!encoded) {
 947                                 syslog(LOG_ERR, "malloc() error");
 948                                 break;
 949                         }
 950                         syslog(LOG_DEBUG, "Attachment: raw len %d", StrLength(att->Data));
 951                         encoded_strlen = CtdlEncodeBase64(encoded, ChrPtr(att->Data), StrLength(att->Data), 1);
 952                         syslog(LOG_DEBUG, "Attachment: encoded len %d", encoded_strlen);
 953
 954                         serv_printf("--%s", top_boundary);
 955                         serv_printf("Content-type: %s", ChrPtr(att->ContentType));
 956                         serv_printf("Content-disposition: attachment; filename=\"%s\"", ChrPtr(att->FileName));
 957                         serv_puts("Content-transfer-encoding: base64");
 958                         serv_puts("");
 959                         serv_write(encoded, encoded_strlen);
 960                         serv_puts("");
 961                         serv_puts("");
 962                         free(encoded);
 963                 }
 964                 syslog(LOG_DEBUG, "\033[33m sending final boundary --%s-- \033[0m", top_boundary);
 965                 TRACE;
 966                 serv_printf("--%s--", top_boundary);
 967                 DeleteHashPos(&it);
 968         }
 969
 970         syslog(LOG_DEBUG, "\033[33m sending terminating 000 \033[0m");
 971         TRACE;
 972         serv_puts("000");
 973 }
 974
 975
 976 /*
 977  * Post message (or don't post message)
 978  *
 979  * Note regarding the "dont_post" variable:
 980  * A random value (actually, it's just a timestamp) is inserted as a hidden
 981  * field called "postseq" when the display_enter page is generated.  This
 982  * value is checked when posting, using the static variable dont_post.  If a
 983  * user attempts to post twice using the same dont_post value, the message is
 984  * discarded.  This prevents the accidental double-saving of the same message
 985  * if the user happens to click the browser "back" button.
 986  */
 987 void post_message(void) {
 988         StrBuf *UserName;
 989         StrBuf *EmailAddress;
 990         StrBuf *EncBuf;
 991         char buf[1024];
 992         StrBuf *encoded_subject = NULL;
 993         static long dont_post = (-1L);
 994         int is_anonymous = 0;
 995         const StrBuf *display_name = NULL;
 996         StrBuf *Buf;
 997
 998         if (havebstr("force_room")) {
 999                 gotoroom(sbstr("force_room"));
1000         }
1001
1002         if (havebstr("display_name")) {
1003                 display_name = sbstr("display_name");
1004                 if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1005                         display_name = NULL;
1006                         is_anonymous = 1;
1007                 }
1008         }
1009
1010         if (!strcasecmp(bstr("submit_action"), "cancel")) {
1011                 AppendImportantMessage(_("Cancelled.  Message was not posted."), -1);
1012         } else if (lbstr("postseq") == dont_post) {
1013                 AppendImportantMessage(
1014                         _("Automatically cancelled because you have already "
1015                           "saved this message."), -1);
1016         } else {
1017                 const char CMD[] = "ENT0 1|%s|%d|4|%s|%s||%s|%s|%s|%s|%s";
1018                 StrBuf *Recp = NULL;
1019                 StrBuf *Cc = NULL;
1020                 StrBuf *Bcc = NULL;
1021                 StrBuf *wikipage = NULL;
1022                 const StrBuf *my_email_addr = NULL;
1023                 StrBuf *CmdBuf = NULL;
1024                 StrBuf *references = NULL;
1025                 int saving_to_drafts = 0;
1026                 long HeaderLen = 0;
1027
1028                 saving_to_drafts = !strcasecmp(bstr("submit_action"), "draft");
1029                 Buf = NewStrBuf();
1030
1031                 if (saving_to_drafts) {
1032                         /* temporarily change to the drafts room */
1033                         serv_puts("GOTO _DRAFTS_");
1034                         StrBuf_ServGetln(Buf);
1035                         if (GetServerStatusMsg(Buf, NULL, 1, 2) != 2) {
1036                                 /* You probably don't even have a dumb Drafts folder */
1037                                 syslog(LOG_DEBUG, "%s:%d: server save to drafts error: %s\n", __FILE__, __LINE__, ChrPtr(Buf) + 4);
1038                                 AppendImportantMessage(_("Saved to Drafts failed: "), -1);
1039                                 display_enter();
1040                                 FreeStrBuf(&Buf);
1041                                 return;
1042                         }
1043                 }
1044
1045                 if (havebstr("references"))
1046                 {
1047                         const StrBuf *ref = sbstr("references");
1048                         references = NewStrBufDup(ref);
1049                         if (*ChrPtr(references) == '|') {       /* remove leading '|' if present */
1050                                 StrBufCutLeft(references, 1);
1051                         }
1052                         StrBufReplaceChars(references, '|', '!');
1053                 }
1054                 if (havebstr("subject")) {
1055                         const StrBuf *Subj;
1056                         /*
1057                          * make enough room for the encoded string;
1058                          * plus the QP header
1059                          */
1060                         Subj = sbstr("subject");
1061
1062                         StrBufRFC2047encode(&encoded_subject, Subj);
1063                 }
1064                 UserName = NewStrBuf();
1065                 EmailAddress = NewStrBuf();
1066                 EncBuf = NewStrBuf();
1067
1068                 Recp = StrBufSanitizeEmailRecipientVector(sbstr("recp"), UserName, EmailAddress, EncBuf);
1069                 Cc = StrBufSanitizeEmailRecipientVector(sbstr("cc"), UserName, EmailAddress, EncBuf);
1070                 Bcc = StrBufSanitizeEmailRecipientVector(sbstr("bcc"), UserName, EmailAddress, EncBuf);
1071
1072                 FreeStrBuf(&UserName);
1073                 FreeStrBuf(&EmailAddress);
1074                 FreeStrBuf(&EncBuf);
1075
1076                 wikipage = NewStrBufDup(sbstr("page"));
1077                 str_wiki_index(wikipage);
1078                 my_email_addr = sbstr("my_email_addr");
1079
1080                 HeaderLen = StrLength(Recp) +
1081                         StrLength(encoded_subject) +
1082                         StrLength(Cc) +
1083                         StrLength(Bcc) +
1084                         StrLength(wikipage) +
1085                         StrLength(my_email_addr) +
1086                         StrLength(references);
1087                 CmdBuf = NewStrBufPlain(NULL, sizeof (CMD) + HeaderLen);
1088                 StrBufPrintf(CmdBuf,
1089                              CMD,
1090                              saving_to_drafts?"":ChrPtr(Recp),
1091                              is_anonymous,
1092                              ChrPtr(encoded_subject),
1093                              ChrPtr(display_name),
1094                              saving_to_drafts?"":ChrPtr(Cc),
1095                              saving_to_drafts?"":ChrPtr(Bcc),
1096                              ChrPtr(wikipage),
1097                              ChrPtr(my_email_addr),
1098                              ChrPtr(references));
1099                 FreeStrBuf(&references);
1100                 FreeStrBuf(&encoded_subject);
1101                 free(wikipage);
1102
1103                 if ((HeaderLen + StrLength(sbstr("msgtext")) < 10) &&
1104                     (GetCount(WC->attachments) == 0)){
1105                         AppendImportantMessage(_("Refusing to post empty message.\n"), -1);
1106                         FreeStrBuf(&CmdBuf);
1107
1108                 }
1109                 else
1110                 {
1111                         syslog(LOG_DEBUG, "%s\n", ChrPtr(CmdBuf));
1112                         serv_puts(ChrPtr(CmdBuf));
1113                         FreeStrBuf(&CmdBuf);
1114
1115                         StrBuf_ServGetln(Buf);
1116                         if (GetServerStatus(Buf, NULL) == 4) {
1117                                 if (saving_to_drafts) {
1118                                         if (  (havebstr("recp"))
1119                                               || (havebstr("cc"  ))
1120                                               || (havebstr("bcc" )) ) {
1121                                                 /* save recipient headers or room to post to */
1122                                                 serv_printf("To: %s", ChrPtr(Recp));
1123                                                 serv_printf("Cc: %s", ChrPtr(Cc));
1124                                                 serv_printf("Bcc: %s", ChrPtr(Bcc));
1125                                         } else {
1126                                                 serv_printf("X-Citadel-Room: %s", ChrPtr(WC->CurRoom.name));
1127                                         }
1128                                 }
1129                                 post_mime_to_server();
1130                                 if (saving_to_drafts) {
1131                                         AppendImportantMessage(_("Message has been saved to Drafts.\n"), -1);
1132                                         gotoroom(WC->CurRoom.name);
1133                                         fixview();
1134                                         readloop(readnew, eUseDefault);
1135                                         FreeStrBuf(&Buf);
1136                                         return;
1137                                 } else if (  (havebstr("recp"))
1138                                              || (havebstr("cc"  ))
1139                                              || (havebstr("bcc" ))
1140                                         ) {
1141                                         AppendImportantMessage(_("Message has been sent.\n"), -1);
1142                                 }
1143                                 else {
1144                                         AppendImportantMessage(_("Message has been posted.\n"), -1);
1145                                 }
1146                                 dont_post = lbstr("postseq");
1147                         } else {
1148                                 syslog(LOG_DEBUG, "%s:%d: server post error: %s", __FILE__, __LINE__, ChrPtr(Buf) + 4);
1149                                 AppendImportantMessage(ChrPtr(Buf) + 4, StrLength(Buf) - 4);
1150                                 display_enter();
1151                                 if (saving_to_drafts) gotoroom(WC->CurRoom.name);
1152                                 FreeStrBuf(&Recp);
1153                                 FreeStrBuf(&Buf);
1154                                 FreeStrBuf(&Cc);
1155                                 FreeStrBuf(&Bcc);
1156                                 return;
1157                         }
1158                 }
1159                 FreeStrBuf(&Recp);
1160                 FreeStrBuf(&Buf);
1161                 FreeStrBuf(&Cc);
1162                 FreeStrBuf(&Bcc);
1163         }
1164
1165         DeleteHash(&WC->attachments);
1166
1167         /*
1168          *  We may have been supplied with instructions regarding the location
1169          *  to which we must return after posting.  If found, go there.
1170          */
1171         if (havebstr("return_to")) {
1172                 http_redirect(bstr("return_to"));
1173         }
1174         /*
1175          *  If we were editing a page in a wiki room, go to that page now.
1176          */
1177         else if (havebstr("page")) {
1178                 snprintf(buf, sizeof buf, "wiki?page=%s", bstr("page"));
1179                 http_redirect(buf);
1180         }
1181         /*
1182          *  Otherwise, just go to the "read messages" loop.
1183          */
1184         else {
1185                 fixview();
1186                 readloop(readnew, eUseDefault);
1187         }
1188 }
1189
1190
1191 /*
1192  * Client is uploading an attachment
1193  */
1194 void upload_attachment(void) {
1195         const char *pch;
1196         int n;
1197         const char *newn;
1198         long newnlen;
1199         void *v;
1200         wc_mime_attachment *att;
1201         const StrBuf *Tmpl = sbstr("template");
1202         const StrBuf *MimeType = NULL;
1203         const StrBuf *UID;
1204
1205         begin_burst();
1206         syslog(LOG_DEBUG, "upload_attachment()");
1207         if (!Tmpl) {
1208                 wc_printf("upload_attachment()<br>\n");
1209         }
1210
1211         if (WC->upload_length <= 0) {
1212                 syslog(LOG_DEBUG, "ERROR no attachment was uploaded\n");
1213                 if (Tmpl) {
1214                         putlbstr("UPLOAD_ERROR", 1);
1215                         MimeType = DoTemplate(SKEY(Tmpl), NULL, &NoCtx);
1216                 }
1217                 else {
1218                         wc_printf("ERROR no attachment was uploaded<br>\n");
1219                 }
1220                 http_transmit_thing(ChrPtr(MimeType), 0);
1221
1222                 return;
1223         }
1224
1225         syslog(LOG_DEBUG, "Client has uploaded %d bytes", WC->upload_length);
1226         if (Tmpl) {
1227                 putlbstr("UPLOAD_LENGTH", WC->upload_length);
1228         }
1229         else {
1230                 wc_printf("Client is uploading %d bytes<br>\n", WC->upload_length);
1231         }
1232
1233         att = (wc_mime_attachment*)malloc(sizeof(wc_mime_attachment));
1234         if (!att) {
1235                 syslog(LOG_DEBUG, "malloc() error");
1236                 TRACE;
1237         }
1238         memset(att, 0, sizeof(wc_mime_attachment ));
1239         att->length = WC->upload_length;
1240         att->ContentType = NewStrBufPlain(WC->upload_content_type, -1);
1241         att->FileName = NewStrBufDup(WC->upload_filename);
1242         UID = sbstr("qquuid");
1243         if (UID) {
1244                 att->PartNum = NewStrBufDup(UID);
1245         }
1246
1247         syslog(LOG_DEBUG, "attachment length: %d", att->length);
1248         syslog(LOG_DEBUG, "att. content type: %s", ChrPtr(att->ContentType));
1249         syslog(LOG_DEBUG, "att upload buffer: %s", ((WC->upload == NULL) ? "null" : "not null"));
1250
1251
1252         if (WC->attachments == NULL) {
1253                 WC->attachments = NewHash(1, Flathash);
1254         }
1255
1256         /* And add it to the list. */
1257         n = 0;
1258         if ((GetCount(WC->attachments) > 0) && GetHashAt(WC->attachments, GetCount(WC->attachments) -1, &newnlen, &newn, &v)) {
1259                 n = *((int*) newn) + 1;
1260         }
1261         Put(WC->attachments, IKEY(n), att, DestroyMime);
1262
1263         /*
1264          * Mozilla sends a simple filename, which is what we want,
1265          * but Satan's Browser sends an entire pathname.  Reduce
1266          * the path to just a filename if we need to.
1267          */
1268         pch = strrchr(ChrPtr(att->FileName), '/');
1269         if (pch != NULL) {
1270                 StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1271         }
1272         pch = strrchr(ChrPtr(att->FileName), '\\');
1273         if (pch != NULL) {
1274                 StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1275         }
1276
1277         /*
1278          * Transfer control of this memory from the upload struct
1279          * to the attachment struct.
1280          */
1281         att->Data = WC->upload;
1282         WC->upload = NULL;
1283         WC->upload_length = 0;
1284
1285         if (Tmpl) MimeType = DoTemplate(SKEY(Tmpl), NULL, &NoCtx);
1286         http_transmit_thing(ChrPtr(MimeType), 0);
1287 }
1288
1289
1290 /*
1291  * Remove an attachment from the message currently being composed.
1292  *
1293  * Currently we identify the attachment to be removed by its filename.
1294  * There is probably a better way to do this.
1295  */
1296 void remove_attachment(void) {
1297         wc_mime_attachment *att;
1298         void *vAtt;
1299         StrBuf *WhichAttachment;
1300         HashPos *at;
1301         long len;
1302         int found=0;
1303         const char *key;
1304
1305         WhichAttachment = NewStrBufDup(sbstr("which_attachment"));
1306         if (ChrPtr(WhichAttachment)[0] == '/')
1307                 StrBufCutLeft(WhichAttachment, 1);
1308         StrBufUnescape(WhichAttachment, 0);
1309         at = GetNewHashPos(WC->attachments, 0);
1310         do {
1311                 vAtt = NULL;
1312                 GetHashPos(WC->attachments, at, &len, &key, &vAtt);
1313
1314                 att = (wc_mime_attachment*) vAtt;
1315                 if ((att != NULL) &&
1316                     (
1317                             !strcmp(ChrPtr(WhichAttachment), ChrPtr(att->FileName)) ||
1318                     ((att->PartNum != NULL) &&
1319                      !strcmp(ChrPtr(WhichAttachment), ChrPtr(att->PartNum)))
1320                             ))
1321                 {
1322                         DeleteEntryFromHash(WC->attachments, at);
1323                         found=1;
1324                         break;
1325                 }
1326         }
1327         while (NextHashPos(WC->attachments, at));
1328
1329         FreeStrBuf(&WhichAttachment);
1330         wc_printf("remove_attachment(%d) completed\n", found);
1331 }
1332
1333
1334 const char *ReplyToModeStrings [3] = {
1335         "reply",
1336         "replyall",
1337         "forward"
1338 };
1339 typedef enum _eReplyToNodes {
1340         eReply,
1341         eReplyAll,
1342         eForward
1343 }eReplyToNodes;
1344
1345
1346 /*
1347  * display the message entry screen
1348  */
1349 void display_enter(void) {
1350         const char *ReplyingModeStr;
1351         eReplyToNodes ReplyMode = eReply;
1352         StrBuf *Line;
1353         long Result;
1354         int rc;
1355         const StrBuf *display_name = NULL;
1356         int recipient_required = 0;
1357         int subject_required = 0;
1358         int is_anonymous = 0;
1359         int i = 0;
1360         long replying_to;
1361
1362         if (havebstr("force_room")) {
1363                 gotoroom(sbstr("force_room"));
1364         }
1365
1366         display_name = sbstr("display_name");
1367         if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1368                 display_name = NULL;
1369                 is_anonymous = 1;
1370         }
1371
1372         /*
1373          * First, do we have permission to enter messages in this room at all?
1374          */
1375         Line = NewStrBuf();
1376         serv_puts("ENT0 0");
1377         StrBuf_ServGetln(Line);
1378         rc = GetServerStatusMsg(Line, &Result, 0, 2);
1379
1380         if (Result == 570) {            /* 570 means that we need a recipient here */
1381                 recipient_required = 1;
1382         }
1383         else if (rc != 2) {             /* Any other error means that we cannot continue */
1384                 rc = GetServerStatusMsg(Line, &Result, 0, 2);
1385                 fixview();
1386                 readloop(readnew, eUseDefault);
1387                 FreeStrBuf(&Line);
1388                 return;
1389         }
1390
1391         /* Is the server strongly recommending that the user enter a message subject? */
1392         if (StrLength(Line) > 4) {
1393                 subject_required = extract_int(ChrPtr(Line) + 4, 1);
1394         }
1395
1396         /*
1397          * Are we perhaps in an address book view?  If so, then an "enter
1398          * message" command really means "add new entry."
1399          */
1400         if (WC->CurRoom.defview == VIEW_ADDRESSBOOK) {
1401                 do_edit_vcard(-1, "", NULL, NULL, "",  ChrPtr(WC->CurRoom.name));
1402                 FreeStrBuf(&Line);
1403                 return;
1404         }
1405
1406         /*
1407          * Are we perhaps in a calendar room?  If so, then an "enter message" command really means "add new calendar item."
1408          */
1409         if (WC->CurRoom.defview == VIEW_CALENDAR) {
1410                 display_edit_event();
1411                 FreeStrBuf(&Line);
1412                 return;
1413         }
1414
1415         /*
1416          * Are we perhaps in a tasks view?  If so, then an "enter
1417          * message" command really means "add new task."
1418          */
1419         if (WC->CurRoom.defview == VIEW_TASKS) {
1420                 display_edit_task();
1421                 FreeStrBuf(&Line);
1422                 return;
1423         }
1424
1425         ReplyingModeStr = bstr("replying_mode");
1426         if (ReplyingModeStr != NULL) {
1427                 for (i = 0; i < 3; i++) {
1428                         if (strcmp(ReplyingModeStr, ReplyToModeStrings[i]) == 0) {
1429                                 ReplyMode = (eReplyToNodes) i;
1430                                 break;
1431                         }
1432                 }
1433         }
1434
1435         /*
1436          * If the "replying_to" variable is set, it refers to a message
1437          * number from which we must extract some header fields...
1438          */
1439         replying_to = lbstr("replying_to");
1440         if (replying_to > 0) {
1441                 long len;
1442                 StrBuf *wefw = NULL;
1443                 StrBuf *msgn = NULL;
1444                 StrBuf *from = NULL;
1445                 StrBuf *rfca = NULL;
1446                 StrBuf *rcpt = NULL;
1447                 StrBuf *cccc = NULL;
1448                 StrBuf *replyto = NULL;
1449                 StrBuf *nvto = NULL;
1450                 int message_originated_locally = 0;
1451                 serv_printf("MSG0 %ld|1", replying_to);
1452
1453                 StrBuf_ServGetln(Line);
1454                 if (GetServerStatusMsg(Line, NULL, 0, 0) == 1)
1455                         while (len = StrBuf_ServGetln(Line), (len >= 0) && ((len != 3) || strcmp(ChrPtr(Line), "000"))) {
1456                                 eMessageField which;
1457                                 if ((StrLength(Line) > 4) && (ChrPtr(Line)[4] == '=') && GetFieldFromMnemonic(&which, ChrPtr(Line))) switch (which) {
1458                                         case eMsgSubject: {
1459                                                 StrBuf *subj = NewStrBuf();
1460                                                 StrBuf *FlatSubject;
1461
1462                                                 if (ReplyMode == eForward) {
1463                                                         if (strncasecmp(ChrPtr(Line) + 5, "Fw:", 3)) {
1464                                                                 StrBufAppendBufPlain(subj, HKEY("Fw: "), 0);
1465                                                         }
1466                                                 }
1467                                                 else {
1468                                                         if (strncasecmp(ChrPtr(Line) + 5, "Re:", 3)) {
1469                                                                 StrBufAppendBufPlain(subj, HKEY("Re: "), 0);
1470                                                         }
1471                                                 }
1472                                                 StrBufAppendBufPlain(subj,
1473                                                                      ChrPtr(Line) + 5,
1474                                                                      StrLength(Line) - 5, 0);
1475                                                 FlatSubject = NewStrBufPlain(NULL, StrLength(subj));
1476                                                 StrBuf_RFC822_to_Utf8(FlatSubject, subj, NULL, NULL);
1477
1478                                                 PutBstr(HKEY("subject"), FlatSubject);
1479                                         }
1480                                                 break;
1481
1482                                         case eIsLocal: {
1483                                                 message_originated_locally = 1;
1484                                                 break;
1485                                         }
1486
1487                                         case eWeferences:
1488                                         {
1489                                                 int rrtok;
1490                                                 int rrlen;
1491
1492                                                 wefw = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1493
1494                                                 /* Trim down excessively long lists of thread references.  We eliminate the
1495                                                  * second one in the list so that the thread root remains intact.
1496                                                  */
1497                                                 rrtok = num_tokens(ChrPtr(wefw), '|');
1498                                                 rrlen = StrLength(wefw);
1499                                                 if ( ((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10) ) {
1500                                                         StrBufRemove_token(wefw, 1, '|');
1501                                                 }
1502                                                 break;
1503                                         }
1504
1505                                         case emessageId:
1506                                                 msgn = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1507                                                 break;
1508
1509                                         case eAuthor: {
1510                                                 StrBuf *FlatFrom;
1511                                                 from = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1512                                                 FlatFrom = NewStrBufPlain(NULL, StrLength(from));
1513                                                 StrBuf_RFC822_to_Utf8(FlatFrom, from, NULL, NULL);
1514                                                 FreeStrBuf(&from);
1515                                                 from = FlatFrom;
1516                                                 for (i=0; i<StrLength(from); ++i) {
1517                                                         if (ChrPtr(from)[i] == ',')
1518                                                                 StrBufPeek(from, NULL, i, ' ');
1519                                                 }
1520                                                 break;
1521                                         }
1522                                         case eRecipient:
1523                                                 rcpt = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1524                                                 break;
1525                                         case eCarbonCopY:
1526                                                 cccc = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1527                                                 break;
1528                                         case eReplyTo:
1529                                                 replyto = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1530                                                 break;
1531                                         case erFc822Addr: {
1532                                                 StrBuf *FlatRFCA;
1533                                                 rfca = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1534                                                 FlatRFCA = NewStrBufPlain(NULL, StrLength(rfca));
1535                                                 StrBuf_RFC822_to_Utf8(FlatRFCA, rfca, NULL, NULL);
1536                                                 FreeStrBuf(&rfca);
1537                                                 rfca = FlatRFCA;
1538                                                 break;
1539                                         }
1540                                         case eenVelopeTo:
1541                                                 nvto = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1542                                                 putbstr("nvto", nvto);
1543                                                 break;
1544                                         case eXclusivID:
1545                                         case eJournal:
1546                                         case eListID:
1547                                         case eMesageText:
1548                                         case eMessagePath:
1549                                         case eSpecialField:
1550                                         case eTimestamp:
1551                                         case eHeaderOnly:
1552                                         case eFormatType:
1553                                         case eMessagePart:
1554                                         case eSubFolder:
1555                                         case eLastHeader:
1556                                                 break;
1557
1558                                         }
1559                         }
1560
1561
1562                 if (StrLength(wefw) + StrLength(msgn) > 0) {
1563                         StrBuf *refs = NewStrBuf();
1564                         if (StrLength(wefw) > 0) {
1565                                 StrBufAppendBuf(refs, wefw, 0);
1566                         }
1567                         if ( (StrLength(wefw) > 0) &&
1568                              (StrLength(msgn) > 0) )
1569                         {
1570                                 StrBufAppendBufPlain(refs, HKEY("|"), 0);
1571                         }
1572                         if (StrLength(msgn) > 0) {
1573                                 StrBufAppendBuf(refs, msgn, 0);
1574                         }
1575                         PutBstr(HKEY("references"), refs);
1576                 }
1577
1578                 /*
1579                  * If this is a Reply or a ReplyAll, copy the sender's email into the To: field
1580                  */
1581                 if ((ReplyMode == eReply) || (ReplyMode == eReplyAll)) {
1582                         StrBuf *to_rcpt;
1583
1584                         if ((StrLength(replyto) > 0) && (ReplyMode == eReplyAll)) {
1585                                 to_rcpt = NewStrBuf();
1586                                 StrBufAppendBuf(to_rcpt, replyto, 0);
1587                         }
1588
1589                         else if ( (StrLength(rfca) > 0) && (message_originated_locally == 0) ) {
1590                                 to_rcpt = NewStrBuf();
1591                                 StrBufAppendBuf(to_rcpt, from, 0);
1592                                 StrBufAppendBufPlain(to_rcpt, HKEY(" <"), 0);
1593                                 StrBufAppendBuf(to_rcpt, rfca, 0);
1594                                 StrBufAppendBufPlain(to_rcpt, HKEY(">"), 0);
1595                         }
1596
1597                         else {
1598                                 to_rcpt =  from;
1599                                 from = NULL;
1600                         }
1601                         PutBstr(HKEY("recp"), to_rcpt);
1602                 }
1603
1604                 /*
1605                  * Only if this is a ReplyAll, copy all recipients into the Cc: field
1606                  */
1607                 if (ReplyMode == eReplyAll) {
1608                         StrBuf *cc_rcpt = rcpt;
1609                         rcpt = NULL;
1610                         if ((StrLength(cccc) > 0) && (StrLength(replyto) == 0)) {
1611                                 if (cc_rcpt != NULL)  {
1612                                         StrBufAppendPrintf(cc_rcpt, ", ");
1613                                         StrBufAppendBuf(cc_rcpt, cccc, 0);
1614                                 }
1615                                 else {
1616                                         cc_rcpt = cccc;
1617                                         cccc = NULL;
1618                                 }
1619                         }
1620                         if (cc_rcpt != NULL) {
1621                                 PutBstr(HKEY("cc"), cc_rcpt);
1622                         }
1623                 }
1624
1625                 // We might not need these logs anymore.
1626                 syslog(LOG_DEBUG, "wefw = %s", ChrPtr(wefw));
1627                 syslog(LOG_DEBUG, "msgn = %s", ChrPtr(msgn));
1628                 syslog(LOG_DEBUG, "from = %s", ChrPtr(from));
1629                 syslog(LOG_DEBUG, "rfca = %s", ChrPtr(rfca));
1630                 syslog(LOG_DEBUG, "rcpt = %s", ChrPtr(rcpt));
1631                 syslog(LOG_DEBUG, "cccc = %s", ChrPtr(cccc));
1632                 syslog(LOG_DEBUG, "replyto = %s", ChrPtr(replyto));
1633                 syslog(LOG_DEBUG, "nvto = %s", ChrPtr(nvto));
1634                 syslog(LOG_DEBUG, "local = %d" , message_originated_locally);
1635
1636                 FreeStrBuf(&wefw);
1637                 FreeStrBuf(&msgn);
1638                 FreeStrBuf(&from);
1639                 FreeStrBuf(&rfca);
1640                 FreeStrBuf(&rcpt);
1641                 FreeStrBuf(&cccc);
1642         }
1643         FreeStrBuf(&Line);
1644
1645         /*
1646          * Otherwise proceed normally.
1647          * Do a custom room banner with no navbar...
1648          */
1649         if (recipient_required) {
1650                 const StrBuf *Recp = NULL;
1651                 const StrBuf *Cc = NULL;
1652                 const StrBuf *Bcc = NULL;
1653                 StrBuf *wikipage = NULL;
1654                 StrBuf *CmdBuf = NULL;
1655                 const char CMD[] = "ENT0 0|%s|%d|0||%s||%s|%s|%s";
1656
1657                 Recp = sbstr("recp");
1658                 Cc = sbstr("cc");
1659                 Bcc = sbstr("bcc");
1660                 wikipage = NewStrBufDup(sbstr("page"));
1661                 str_wiki_index(wikipage);
1662
1663                 CmdBuf = NewStrBufPlain(NULL,
1664                                         sizeof (CMD) +
1665                                         StrLength(Recp) +
1666                                         StrLength(display_name) +
1667                                         StrLength(Cc) +
1668                                         StrLength(Bcc) +
1669                                         StrLength(wikipage));
1670
1671                 StrBufPrintf(CmdBuf,
1672                              CMD,
1673                              ChrPtr(Recp),
1674                              is_anonymous,
1675                              ChrPtr(display_name),
1676                              ChrPtr(Cc),
1677                              ChrPtr(Bcc),
1678                              ChrPtr(wikipage)
1679                 );
1680                 serv_puts(ChrPtr(CmdBuf));
1681                 StrBuf_ServGetln(CmdBuf);
1682                 free(wikipage);
1683
1684                 rc = GetServerStatusMsg(CmdBuf, &Result, 0, 0);
1685
1686                 if (    (Result == 570)         /* invalid or missing recipient(s) */
1687                         || (Result == 550)      /* higher access required to send Internet mail */
1688                 ) {
1689                         /* These errors will have been displayed and are excusable */
1690                 }
1691                 else if (rc != 2) {     /* Any other error means that we cannot continue */
1692                         AppendImportantMessage(ChrPtr(CmdBuf) + 4, StrLength(CmdBuf) - 4);
1693                         FreeStrBuf(&CmdBuf);
1694                         fixview();
1695                         readloop(readnew, eUseDefault);
1696                         return;
1697                 }
1698                 FreeStrBuf(&CmdBuf);
1699         }
1700         if (recipient_required)
1701                 PutBstr(HKEY("__RCPTREQUIRED"), NewStrBufPlain(HKEY("1")));
1702         if (recipient_required || subject_required)
1703                 PutBstr(HKEY("__SUBJREQUIRED"), NewStrBufPlain(HKEY("1")));
1704
1705         begin_burst();
1706         output_headers(1, 0, 0, 0, 1, 0);
1707         DoTemplate(HKEY("edit_message"), NULL, &NoCtx);
1708         end_burst();
1709
1710         return;
1711 }
1712
1713
1714 /*
1715  * delete a message
1716  */
1717 void delete_msg(void) {
1718         long msgid;
1719         StrBuf *Line;
1720
1721         msgid = lbstr("msgid");
1722         Line = NewStrBuf();
1723         if ((WC->CurRoom.RAFlags & UA_ISTRASH) != 0) {  /* Delete from Trash is a real delete */
1724                 serv_printf("DELE %ld", msgid);
1725         }
1726         else {                  /* Otherwise move it to Trash */
1727                 serv_printf("MOVE %ld|_TRASH_|0", msgid);
1728         }
1729
1730         StrBuf_ServGetln(Line);
1731         GetServerStatusMsg(Line, NULL, 1, 0);
1732
1733         fixview();
1734
1735         readloop(readnew, eUseDefault);
1736 }
1737
1738
1739 /*
1740  * move a message to another room
1741  */
1742 void move_msg(void) {
1743         long msgid;
1744
1745         msgid = lbstr("msgid");
1746
1747         if (havebstr("move_button")) {
1748                 StrBuf *Line;
1749                 serv_printf("MOVE %ld|%s", msgid, bstr("target_room"));
1750                 Line = NewStrBuf();
1751                 StrBuf_ServGetln(Line);
1752                 GetServerStatusMsg(Line, NULL, 1, 0);
1753                 FreeStrBuf(&Line);
1754         } else {
1755                 AppendImportantMessage(_("The message was not moved."), -1);
1756         }
1757
1758         fixview();
1759         readloop(readnew, eUseDefault);
1760 }
1761
1762
1763 /*
1764  * Generic function to output an arbitrary MIME attachment from
1765  * message being composed
1766  *
1767  * partnum              The MIME part to be output
1768  * filename             Fake filename to give
1769  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1770  */
1771 void postpart(StrBuf *partnum, StrBuf *filename, int force_download) {
1772         void *vPart;
1773         StrBuf *content_type;
1774         wc_mime_attachment *part;
1775         int i;
1776
1777         i = StrToi(partnum);
1778         if (GetHash(WC->attachments, IKEY(i), &vPart) &&
1779             (vPart != NULL)) {
1780                 part = (wc_mime_attachment*) vPart;
1781                 if (force_download) {
1782                         content_type = NewStrBufPlain(HKEY("application/octet-stream"));
1783                 }
1784                 else {
1785                         content_type = NewStrBufDup(part->ContentType);
1786                 }
1787                 StrBufAppendBuf(WC->WBuf, part->Data, 0);
1788                 http_transmit_thing(ChrPtr(content_type), 0);
1789         } else {
1790                 hprintf("HTTP/1.1 404 %s\n", ChrPtr(partnum));
1791                 output_headers(0, 0, 0, 0, 0, 0);
1792                 hprintf("Content-Type: text/plain\r\n");
1793                 begin_burst();
1794                 wc_printf(_("An error occurred while retrieving this part: %s/%s\n"),
1795                         ChrPtr(partnum), ChrPtr(filename));
1796                 end_burst();
1797         }
1798         FreeStrBuf(&content_type);
1799 }
1800
1801
1802 /*
1803  * Generic function to output an arbitrary MIME part from an arbitrary
1804  * message number on the server.
1805  *
1806  * msgnum               message number on the citadel server
1807  * partnum              MIME part number to be output
1808  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1809  */
1810 void view_or_download_mimepart(int force_download) {
1811         long msgnum;
1812         off_t bytes;
1813         StrBuf *Buf;
1814         StrBuf *ContentType;
1815         StrBuf *PartNum;
1816
1817         PartNum = NewStrBuf();
1818
1819         msgnum = StrBufExtract_long(WC->Hdr->HR.ReqLine, 0, '/');
1820         StrBufExtract_token(PartNum, WC->Hdr->HR.ReqLine, 1, '/');
1821
1822         Buf = NewStrBuf();
1823         serv_printf("DLAT %ld|%s", msgnum, ChrPtr(PartNum));    // DLAT will return: 6XX length|-1|filename|cbtype|cbcharset
1824         StrBuf_ServGetln(Buf);
1825         FreeStrBuf(&PartNum);
1826
1827         if (GetServerStatus(Buf, NULL) != 6) {
1828                 FreeStrBuf(&Buf);
1829                 hprintf("HTTP/1.1 500 error\r\n"
1830                         "Pragma: no-cache\r\n"
1831                         "Cache-Control: no-store\r\n"
1832                         "Expires: -1\r\n"
1833                         "Content-Type: text/plain\r\n"
1834                 );
1835                 begin_burst();
1836                 wc_printf(_("An error occurred while retrieving this part: %s\n"), "--");
1837                 return;
1838         }
1839
1840         StrBufCutLeft(Buf, 4);
1841         bytes = StrBufExtract_long(Buf, 0, '|');
1842
1843         if (force_download) {
1844                 ContentType = NewStrBufPlain(HKEY("application/octet-stream"));
1845         }
1846         else {
1847                 ContentType = NewStrBuf();
1848                 StrBufExtract_token(ContentType, Buf, 3, '|');
1849         }
1850
1851         FreeStrBuf(&Buf);
1852         Buf = NewStrBuf();
1853         StrBuf_ServGetBLOBBuffered(Buf, bytes);
1854
1855         WC->WBuf = Buf;
1856         Buf = NULL;
1857         http_transmit_thing(ChrPtr(ContentType), 0);
1858         FreeStrBuf(&ContentType);
1859 }
1860
1861
1862 /*
1863  * Read any MIME part of a message, from the server, into memory.
1864  */
1865 StrBuf *load_mimepart(long msgnum, char *partnum) {
1866         off_t bytes;
1867         StrBuf *Buf;
1868
1869         Buf = NewStrBuf();
1870         serv_printf("DLAT %ld|%s", msgnum, partnum);
1871         StrBuf_ServGetln(Buf);
1872         if (GetServerStatus(Buf, NULL) == 6) {
1873                 StrBufCutLeft(Buf, 4);
1874                 bytes = StrBufExtract_long(Buf, 0, '|');
1875                 FreeStrBuf(&Buf);
1876                 Buf = NewStrBuf();
1877                 StrBuf_ServGetBLOBBuffered(Buf, bytes);
1878                 return(Buf);
1879         }
1880         else {
1881                 FreeStrBuf(&Buf);
1882                 return(NULL);
1883         }
1884 }
1885
1886
1887 /*
1888  * Read any MIME part of a message, from the server, into memory.
1889  */
1890 void MimeLoadData(wc_mime_attachment *Mime) {
1891         StrBuf *Buf;
1892         const char *Ptr;
1893         off_t bytes;
1894
1895         serv_printf("DLAT %ld|%s", Mime->msgnum, ChrPtr(Mime->PartNum));
1896         Buf = NewStrBuf();
1897         StrBuf_ServGetln(Buf);
1898         if (GetServerStatus(Buf, NULL) == 6) {
1899                 Ptr = &(ChrPtr(Buf)[4]);
1900                 bytes = StrBufExtractNext_long(Buf, &Ptr, '|');
1901                 StrBufSkip_NTokenS(Buf, &Ptr, '|', 3);  /* filename, cbtype, mimetype */
1902                 if (Mime->Charset == NULL) Mime->Charset = NewStrBuf();
1903                 StrBufExtract_NextToken(Mime->Charset, Buf, &Ptr, '|');
1904
1905                 if (Mime->Data == NULL) {
1906                         Mime->Data = NewStrBufPlain(NULL, bytes);
1907                 }
1908                 StrBuf_ServGetBLOBBuffered(Mime->Data, bytes);
1909         }
1910         else {
1911                 FlushStrBuf(Mime->Data);
1912         }
1913         FreeStrBuf(&Buf);
1914 }
1915
1916
1917 void view_mimepart(void) {
1918         view_or_download_mimepart(0);
1919 }
1920
1921
1922 void download_mimepart(void) {
1923         view_or_download_mimepart(1);
1924 }
1925
1926
1927 void view_postpart(void) {
1928         StrBuf *filename = NewStrBuf();
1929         StrBuf *partnum = NewStrBuf();
1930
1931         StrBufExtract_token(partnum, WC->Hdr->HR.ReqLine, 0, '/');
1932         StrBufExtract_token(filename, WC->Hdr->HR.ReqLine, 1, '/');
1933
1934         postpart(partnum, filename, 0);
1935
1936         FreeStrBuf(&filename);
1937         FreeStrBuf(&partnum);
1938 }
1939
1940
1941 void download_postpart(void) {
1942         StrBuf *filename = NewStrBuf();
1943         StrBuf *partnum = NewStrBuf();
1944
1945         StrBufExtract_token(partnum, WC->Hdr->HR.ReqLine, 0, '/');
1946         StrBufExtract_token(filename, WC->Hdr->HR.ReqLine, 1, '/');
1947
1948         postpart(partnum, filename, 1);
1949
1950         FreeStrBuf(&filename);
1951         FreeStrBuf(&partnum);
1952 }
1953
1954
1955 void show_num_attachments(void) {
1956         wc_printf("%d", GetCount(WC->attachments));
1957 }
1958
1959
1960 void h_readnew(void) { readloop(readnew, eUseDefault);}
1961 void h_readold(void) { readloop(readold, eUseDefault);}
1962 void h_readfwd(void) { readloop(readfwd, eUseDefault);}
1963 void h_headers(void) { readloop(headers, eUseDefault);}
1964 void h_do_search(void) { readloop(do_search, eUseDefault);}
1965 void h_readgt(void) { readloop(readgt, eUseDefault);}
1966 void h_readlt(void) { readloop(readlt, eUseDefault);}
1967
1968
1969 /* Output message list in JSON format */
1970 void jsonMessageList(void) {
1971         StrBuf *View = NewStrBuf();
1972         const StrBuf *room = sbstr("room");
1973         long oper = (havebstr("query")) ? do_search : readnew;
1974         StrBufPrintf(View, "%d", VIEW_JSON_LIST);
1975         putbstr("view", View);;
1976         gotoroom(room);
1977         readloop(oper, eUseDefault);
1978 }
1979
1980
1981 void FreeReadLoopHandlerSet(void *v) {
1982         RoomRenderer *Handler = (RoomRenderer *) v;
1983         FreeStrBuf(&Handler->FetchMessageList);
1984         if (Handler->MessageFieldList != NULL) {
1985                 free(Handler->MessageFieldList);
1986         }
1987         free(Handler);
1988 }
1989
1990
1991 void RegisterReadLoopHandlerset(
1992         int RoomType,
1993         GetParamsGetServerCall_func GetParamsGetServerCall,
1994         PrintViewHeader_func PrintPageHeader,
1995         PrintViewHeader_func PrintViewHeader,
1996         load_msg_ptrs_detailheaders LH,
1997         LoadMsgFromServer_func LoadMsgFromServer,
1998         RenderView_or_Tail_func RenderView_or_Tail,
1999         View_Cleanup_func ViewCleanup,
2000         const char **browseListFields
2001         )
2002 {
2003         long count = 0;
2004         long i = 0;
2005         RoomRenderer *Handler;
2006
2007         Handler = (RoomRenderer*) malloc(sizeof(RoomRenderer));
2008
2009         Handler->RoomType = RoomType;
2010         Handler->GetParamsGetServerCall = GetParamsGetServerCall;
2011         Handler->PrintPageHeader = PrintPageHeader;
2012         Handler->PrintViewHeader = PrintViewHeader;
2013         Handler->LoadMsgFromServer = LoadMsgFromServer;
2014         Handler->RenderView_or_Tail = RenderView_or_Tail;
2015         Handler->ViewCleanup = ViewCleanup;
2016         Handler->LHParse = LH;
2017
2018         if (browseListFields != NULL) {
2019                 while (browseListFields[count] != NULL) {
2020                         count ++;
2021                 }
2022                 Handler->HeaderCount = count;
2023                 Handler->MessageFieldList = (eMessageField*) malloc(sizeof(eMessageField) * count);
2024                 Handler->FetchMessageList = NewStrBufPlain(NULL, 5 * count + 4 + 5);
2025                 StrBufPlain(Handler->FetchMessageList, HKEY("time\n"));
2026                 for (i = 0; i < count; i++) {
2027                         if (!GetFieldFromMnemonic(&Handler->MessageFieldList[i], browseListFields[i])) {
2028                                 fprintf(stderr, "Unknown message header: %s\n", browseListFields[i]);
2029                                 exit(1);
2030                         }
2031                         StrBufAppendBufPlain(Handler->FetchMessageList, browseListFields[i], 4, 0);
2032                         StrBufAppendBufPlain(Handler->FetchMessageList, HKEY("\n"), 0);
2033                 }
2034                 StrBufAppendBufPlain(Handler->FetchMessageList, HKEY("000"), 0);
2035         }
2036         else {
2037                 Handler->FetchMessageList = NULL;
2038                 Handler->MessageFieldList = NULL;
2039         }
2040
2041         Put(ReadLoopHandler, IKEY(RoomType), Handler, FreeReadLoopHandlerSet);
2042 }
2043
2044 void
2045 InitModule_MSG
2046 (void)
2047 {
2048         RegisterPreference("use_sig",
2049                            _("Attach signature to email messages?"),
2050                            PRF_YESNO,
2051                            NULL);
2052         RegisterPreference("signature", _("Use this signature:"), PRF_QP_STRING, NULL);
2053         RegisterPreference("default_header_charset",
2054                            _("Default character set for email headers:"),
2055                            PRF_STRING,
2056                            NULL);
2057         RegisterPreference("defaultfrom", _("Preferred email address"), PRF_STRING, NULL);
2058         RegisterPreference("defaultname",
2059                            _("Preferred display name for email messages"),
2060                            PRF_STRING,
2061                            NULL);
2062         RegisterPreference("defaulthandle",
2063                            _("Preferred display name for bulletin board posts"),
2064                            PRF_STRING,
2065                            NULL);
2066         RegisterPreference("mailbox",_("Mailbox view mode"), PRF_STRING, NULL);
2067
2068         WebcitAddUrlHandler(HKEY("readnew"), "", 0, h_readnew, ANONYMOUS|NEED_URL);
2069         WebcitAddUrlHandler(HKEY("readold"), "", 0, h_readold, ANONYMOUS|NEED_URL);
2070         WebcitAddUrlHandler(HKEY("readfwd"), "", 0, h_readfwd, ANONYMOUS|NEED_URL);
2071         WebcitAddUrlHandler(HKEY("headers"), "", 0, h_headers, NEED_URL);
2072         WebcitAddUrlHandler(HKEY("readgt"), "", 0, h_readgt, ANONYMOUS|NEED_URL);
2073         WebcitAddUrlHandler(HKEY("readlt"), "", 0, h_readlt, ANONYMOUS|NEED_URL);
2074         WebcitAddUrlHandler(HKEY("do_search"), "", 0, h_do_search, 0);
2075         WebcitAddUrlHandler(HKEY("display_enter"), "", 0, display_enter, 0);
2076         WebcitAddUrlHandler(HKEY("post"), "", 0, post_message, PROHIBIT_STARTPAGE);
2077         WebcitAddUrlHandler(HKEY("move_msg"), "", 0, move_msg, PROHIBIT_STARTPAGE);
2078         WebcitAddUrlHandler(HKEY("delete_msg"), "", 0, delete_msg, PROHIBIT_STARTPAGE);
2079         WebcitAddUrlHandler(HKEY("msg"), "", 0, embed_message, NEED_URL);
2080         WebcitAddUrlHandler(HKEY("message"), "", 0, handle_one_message, NEED_URL|XHTTP_COMMANDS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
2081         WebcitAddUrlHandler(HKEY("printmsg"), "", 0, print_message, NEED_URL);
2082         WebcitAddUrlHandler(HKEY("msgheaders"), "", 0, display_headers, NEED_URL);
2083
2084         WebcitAddUrlHandler(HKEY("mimepart"), "", 0, view_mimepart, NEED_URL);
2085         WebcitAddUrlHandler(HKEY("mimepart_download"), "", 0, download_mimepart, NEED_URL);
2086         WebcitAddUrlHandler(HKEY("postpart"), "", 0, view_postpart, NEED_URL|PROHIBIT_STARTPAGE);
2087         WebcitAddUrlHandler(HKEY("postpart_download"), "", 0, download_postpart, NEED_URL|PROHIBIT_STARTPAGE);
2088         WebcitAddUrlHandler(HKEY("upload_attachment"), "", 0, upload_attachment, AJAX);
2089         WebcitAddUrlHandler(HKEY("remove_attachment"), "", 0, remove_attachment, AJAX);
2090         WebcitAddUrlHandler(HKEY("show_num_attachments"), "", 0, show_num_attachments, AJAX);
2091
2092         /* json */
2093         WebcitAddUrlHandler(HKEY("roommsgs"), "", 0, jsonMessageList,0);
2094 }
2095
2096 void
2097 SessionDetachModule_MSG
2098 (wcsession *sess)
2099 {
2100         DeleteHash(&sess->summ);
2101 }