webcit/messages.c

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