webcit/messages.c

   1 /*
   2  * Functions which deal with the fetching and displaying of messages.
   3  *
   4  * Copyright (c) 1996-2012 by the citadel.org team
   5  *
   6  * This program is open source software.  You can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License, version 3.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #include "webcit.h"
  16 #include "webserver.h"
  17 #include "dav.h"
  18 #include "calendar.h"
  19
  20 HashList *MimeRenderHandler = NULL;
  21 HashList *ReadLoopHandler = NULL;
  22 int dbg_analyze_msg = 0;
  23
  24 #define SUBJ_COL_WIDTH_PCT              50      /* Mailbox view column width */
  25 #define SENDER_COL_WIDTH_PCT            30      /* Mailbox view column width */
  26 #define DATE_PLUS_BUTTONS_WIDTH_PCT     20      /* Mailbox view column width */
  27
  28 void jsonMessageListHdr(void);
  29
  30 void display_enter(void);
  31
  32 void fixview()
  33 {
  34         /* workaround for json listview; its not useable directly */
  35         if (WC->CurRoom.view == VIEW_JSON_LIST) {
  36                 StrBuf *View = NewStrBuf();
  37                 StrBufPrintf(View, "%d", VIEW_MAILBOX);
  38                 putbstr("view", View);;
  39         }
  40 }
  41 int load_message(message_summary *Msg,
  42                  StrBuf *FoundCharset,
  43                  StrBuf **Error)
  44 {
  45         StrBuf *Buf;
  46         StrBuf *HdrToken;
  47         char buf[SIZ];
  48         int Done = 0;
  49         int state=0;
  50         int rc;
  51
  52         Buf = NewStrBuf();
  53         if (Msg->PartNum != NULL) {
  54                 serv_printf("MSG4 %ld|%s", Msg->msgnum, ChrPtr(Msg->PartNum));
  55         }
  56         else {
  57                 serv_printf("MSG4 %ld", Msg->msgnum);
  58         }
  59
  60         StrBuf_ServGetln(Buf);
  61         if (GetServerStatus(Buf, NULL) != 1) {
  62                 *Error = NewStrBuf();
  63                 StrBufAppendPrintf(*Error, "<strong>");
  64                 StrBufAppendPrintf(*Error, _("ERROR:"));
  65                 StrBufAppendPrintf(*Error, "</strong> %s<br>\n", &buf[4]);
  66                 FreeStrBuf(&Buf);
  67                 return 0;
  68         }
  69
  70         /* begin everythingamundo table */
  71         HdrToken = NewStrBuf();
  72         while (!Done && StrBuf_ServGetln(Buf)>=0) {
  73                 if ( (StrLength(Buf)==3) &&
  74                     !strcmp(ChrPtr(Buf), "000"))
  75                 {
  76                         Done = 1;
  77                         if (state < 2) {
  78                                 if (Msg->MsgBody->Data == NULL)
  79                                         Msg->MsgBody->Data = NewStrBuf();
  80                                 Msg->MsgBody->ContentType = NewStrBufPlain(HKEY("text/html"));
  81                                 StrBufAppendPrintf(Msg->MsgBody->Data, "<div><i>");
  82                                 StrBufAppendPrintf(Msg->MsgBody->Data, _("Empty message"));
  83                                 StrBufAppendPrintf(Msg->MsgBody->Data, "</i><br><br>\n");
  84                                 StrBufAppendPrintf(Msg->MsgBody->Data, "</div>\n");
  85                         }
  86                         break;
  87                 }
  88                 switch (state) {
  89                 case 0:/* Citadel Message Headers */
  90                         if (StrLength(Buf) == 0) {
  91                                 state ++;
  92                                 break;
  93                         }
  94                         StrBufExtract_token(HdrToken, Buf, 0, '=');
  95                         StrBufCutLeft(Buf, StrLength(HdrToken) + 1);
  96
  97                         /* look up one of the examine_* functions to parse the content */
  98                         rc =  EvaluateMsgHdr(SKEY(HdrToken), Msg, Buf, FoundCharset);
  99                         if (rc == 1) {
 100                                 state++;
 101                         }
 102                         /* TODO:
 103                         else LogError(Target,
 104                                       __FUNCTION__,
 105                                       "don't know how to handle message header[%s]\n",
 106                                       ChrPtr(HdrToken));
 107                          */
 108                         break;
 109                 case 1:/* Message Mime Header */
 110                         if (StrLength(Buf) == 0) {
 111                                 state++;
 112                                 if (Msg->MsgBody->ContentType == NULL)
 113                                         /* end of header or no header? */
 114                                         Msg->MsgBody->ContentType = NewStrBufPlain(HKEY("text/plain"));
 115                                  /* usual end of mime header */
 116                         }
 117                         else
 118                         {
 119                                 StrBufExtract_token(HdrToken, Buf, 0, ':');
 120                                 if (StrLength(HdrToken) > 0) {
 121                                         StrBufCutLeft(Buf, StrLength(HdrToken) + 1);
 122                                         /* the examine*'s know how to do with mime headers too... */
 123                                         EvaluateMsgHdr(SKEY(HdrToken), Msg, Buf, FoundCharset);
 124
 125                                         break;
 126                                 }
 127                         }
 128                 case 2: /* Message Body */
 129
 130                         if (Msg->MsgBody->size_known > 0) {
 131                                 StrBuf_ServGetBLOBBuffered(Msg->MsgBody->Data, Msg->MsgBody->length);
 132                                 state ++;
 133                                 /*/ todo: check next line, if not 000, append following lines */
 134                         }
 135                         else if (1){
 136                                 if (StrLength(Msg->MsgBody->Data) > 0)
 137                                         StrBufAppendBufPlain(Msg->MsgBody->Data, "\n", 1, 0);
 138                                 StrBufAppendBuf(Msg->MsgBody->Data, Buf, 0);
 139                         }
 140                         break;
 141                 case 3:
 142                         StrBufAppendBuf(Msg->MsgBody->Data, Buf, 0);
 143                         break;
 144                 }
 145         }
 146
 147         if (Msg->AllAttach == NULL)
 148                 Msg->AllAttach = NewHash(1,NULL);
 149         /* now we put the body mimepart we read above into the mimelist */
 150         Put(Msg->AllAttach, SKEY(Msg->MsgBody->PartNum), Msg->MsgBody, DestroyMime);
 151
 152         FreeStrBuf(&Buf);
 153         FreeStrBuf(&HdrToken);
 154         return 1;
 155 }
 156
 157
 158
 159 /*
 160  * I wanna SEE that message!
 161  *
 162  * msgnum               Message number to display
 163  * printable_view       Nonzero to display a printable view
 164  * section              Optional for encapsulated message/rfc822 submessage
 165  */
 166 int read_message(StrBuf *Target, const char *tmpl, long tmpllen, long msgnum, const StrBuf *PartNum, const StrBuf **OutMime, WCTemplputParams *TP)
 167 {
 168         StrBuf *Buf;
 169         StrBuf *FoundCharset;
 170         HashPos  *it;
 171         void *vMime;
 172         message_summary *Msg = NULL;
 173         void *vHdr;
 174         long len;
 175         const char *Key;
 176         WCTemplputParams SuperTP;
 177         WCTemplputParams SubTP;
 178         StrBuf *Error = NULL;
 179
 180         memset(&SuperTP, 0, sizeof(WCTemplputParams));
 181         memset(&SubTP, 0, sizeof(WCTemplputParams));
 182
 183         Buf = NewStrBuf();
 184         FoundCharset = NewStrBuf();
 185         Msg = (message_summary *)malloc(sizeof(message_summary));
 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         memset(Msg->MsgBody, 0, sizeof(wc_mime_attachment));
 191         Msg->MsgBody->msgnum = msgnum;
 192
 193         if (!load_message(Msg, FoundCharset, &Error)) {
 194                 StrBufAppendBuf(Target, Error, 0);
 195                 FreeStrBuf(&Error);
 196         }
 197
 198         /* Extract just the content-type (omit attributes such as "charset") */
 199         StrBufExtract_token(Buf, Msg->MsgBody->ContentType, 0, ';');
 200         StrBufTrim(Buf);
 201         StrBufLowerCase(Buf);
 202
 203         StackContext(TP, &SuperTP, Msg, CTX_MAILSUM, 0, NULL);
 204         {
 205                 /* Locate a renderer capable of converting this MIME part into HTML */
 206                 if (GetHash(MimeRenderHandler, SKEY(Buf), &vHdr) &&
 207                     (vHdr != NULL)) {
 208                         RenderMimeFuncStruct *Render;
 209
 210                         StackContext(&SuperTP, &SubTP, Msg->MsgBody, CTX_MIME_ATACH, 0, NULL);
 211                         {
 212                                 Render = (RenderMimeFuncStruct*)vHdr;
 213                                 Render->f(Target, &SubTP, FoundCharset);
 214                         }
 215                         UnStackContext(&SubTP);
 216                 }
 217
 218                 if (StrLength(Msg->reply_references)> 0) {
 219                         /* Trim down excessively long lists of thread references.  We eliminate the
 220                          * second one in the list so that the thread root remains intact.
 221                          */
 222                         int rrtok = num_tokens(ChrPtr(Msg->reply_references), '|');
 223                         int rrlen = StrLength(Msg->reply_references);
 224                         if ( ((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10) ) {
 225                                 StrBufRemove_token(Msg->reply_references, 1, '|');
 226                         }
 227                 }
 228
 229                 /* now check if we need to translate some mimeparts, and remove the duplicate */
 230                 it = GetNewHashPos(Msg->AllAttach, 0);
 231                 while (GetNextHashPos(Msg->AllAttach, it, &len, &Key, &vMime) &&
 232                        (vMime != NULL)) {
 233                         StackContext(&SuperTP, &SubTP, vMime, CTX_MIME_ATACH, 0, NULL);
 234                         {
 235                                 evaluate_mime_part(Target, &SubTP);
 236                         }
 237                         UnStackContext(&SubTP);
 238                 }
 239                 DeleteHashPos(&it);
 240                 *OutMime = DoTemplate(tmpl, tmpllen, Target, &SuperTP);
 241         }
 242         UnStackContext(&SuperTP);
 243
 244         DestroyMessageSummary(Msg);
 245         FreeStrBuf(&FoundCharset);
 246         FreeStrBuf(&Buf);
 247         return 1;
 248 }
 249
 250
 251 long
 252 HttpStatus(long CitadelStatus)
 253 {
 254         long httpstatus = 502;
 255
 256         switch (MAJORCODE(CitadelStatus))
 257         {
 258         case LISTING_FOLLOWS:
 259         case CIT_OK:
 260                 httpstatus = 201;
 261                 break;
 262         case ERROR:
 263                 switch (MINORCODE(CitadelStatus))
 264                 {
 265                 case INTERNAL_ERROR:
 266                         httpstatus = 403;
 267                         break;
 268
 269                 case TOO_BIG:
 270                 case ILLEGAL_VALUE:
 271                 case HIGHER_ACCESS_REQUIRED:
 272                 case MAX_SESSIONS_EXCEEDED:
 273                 case RESOURCE_BUSY:
 274                 case RESOURCE_NOT_OPEN:
 275                 case NOT_HERE:
 276                 case INVALID_FLOOR_OPERATION:
 277                 case FILE_NOT_FOUND:
 278                 case ROOM_NOT_FOUND:
 279                         httpstatus = 409;
 280                         break;
 281
 282                 case MESSAGE_NOT_FOUND:
 283                 case ALREADY_EXISTS:
 284                         httpstatus = 403;
 285                         break;
 286
 287                 case NO_SUCH_SYSTEM:
 288                         httpstatus = 502;
 289                         break;
 290
 291                 default:
 292                 case CMD_NOT_SUPPORTED:
 293                 case PASSWORD_REQUIRED:
 294                 case ALREADY_LOGGED_IN:
 295                 case USERNAME_REQUIRED:
 296                 case NOT_LOGGED_IN:
 297                 case SERVER_SHUTTING_DOWN:
 298                 case NO_SUCH_USER:
 299                 case ASYNC_GEXP:
 300                         httpstatus = 502;
 301                         break;
 302                 }
 303                 break;
 304
 305         default:
 306         case BINARY_FOLLOWS:
 307         case SEND_BINARY:
 308         case START_CHAT_MODE:
 309         case ASYNC_MSG:
 310         case MORE_DATA:
 311         case SEND_LISTING:
 312                 httpstatus = 502; /* aeh... whut? */
 313                 break;
 314         }
 315
 316         return httpstatus;
 317 }
 318
 319 /*
 320  * Unadorned HTML output of an individual message, suitable
 321  * for placing in a hidden iframe, for printing, or whatever
 322  */
 323 void handle_one_message(void)
 324 {
 325         long CitStatus = ERROR + NOT_HERE;
 326         int CopyMessage = 0;
 327         const StrBuf *Destination;
 328         void *vLine;
 329         const StrBuf *Mime;
 330         long msgnum = 0L;
 331         wcsession *WCC = WC;
 332         const StrBuf *Tmpl;
 333         StrBuf *CmdBuf = NULL;
 334         const char *pMsg;
 335
 336
 337         pMsg = strchr(ChrPtr(WCC->Hdr->HR.ReqLine), '/');
 338         if (pMsg == NULL) {
 339                 HttpStatus(CitStatus);
 340                 return;
 341         }
 342
 343         msgnum = atol(pMsg + 1);
 344         StrBufCutAt(WCC->Hdr->HR.ReqLine, 0, pMsg);
 345         gotoroom(WCC->Hdr->HR.ReqLine);
 346         switch (WCC->Hdr->HR.eReqType)
 347         {
 348         case eGET:
 349         case ePOST:
 350                 Tmpl = sbstr("template");
 351                 if (StrLength(Tmpl) > 0)
 352                         read_message(WCC->WBuf, SKEY(Tmpl), msgnum, NULL, &Mime, NULL);
 353                 else
 354                         read_message(WCC->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 ((WCC->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(WCC->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         wcsession *WCC = WC;
 399         const StrBuf *Tmpl;
 400         StrBuf *CmdBuf = NULL;
 401
 402         msgnum = StrBufExtract_long(WCC->Hdr->HR.ReqLine, 0, '/');
 403         if (msgnum <= 0) return;
 404
 405         switch (WCC->Hdr->HR.eReqType)
 406         {
 407         case eGET:
 408         case ePOST:
 409                 Tmpl = sbstr("template");
 410                 if (StrLength(Tmpl) > 0)
 411                         read_message(WCC->WBuf, SKEY(Tmpl), msgnum, NULL, &Mime, NULL);
 412                 else
 413                         read_message(WCC->WBuf, HKEY("view_message"), msgnum, NULL, &Mime, NULL);
 414                 http_transmit_thing(ChrPtr(Mime), 0);
 415                 break;
 416         case eDELETE:
 417                 CmdBuf = NewStrBuf ();
 418                 if ((WCC->CurRoom.RAFlags & UA_ISTRASH) != 0) { /* Delete from Trash is a real delete */
 419                         serv_printf("DELE %ld", msgnum);
 420                 }
 421                 else {                  /* Otherwise move it to Trash */
 422                         serv_printf("MOVE %ld|_TRASH_|0", msgnum);
 423                 }
 424                 StrBuf_ServGetln(CmdBuf);
 425                 GetServerStatusMsg(CmdBuf, NULL, 1, 0);
 426                 break;
 427         default:
 428                 break;
 429
 430         }
 431 }
 432
 433
 434 /*
 435  * Printable view of a message
 436  */
 437 void print_message(void) {
 438         long msgnum = 0L;
 439         const StrBuf *Mime;
 440
 441         msgnum = StrBufExtract_long(WC->Hdr->HR.ReqLine, 0, '/');
 442         output_headers(0, 0, 0, 0, 0, 0);
 443
 444         hprintf("Content-type: text/html\r\n"
 445                 "Server: " PACKAGE_STRING "\r\n"
 446                 "Connection: close\r\n");
 447
 448         begin_burst();
 449
 450         read_message(WC->WBuf, HKEY("view_message_print"), msgnum, NULL, &Mime, NULL);
 451
 452         wDumpContent(0);
 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 /*
 485  * load message pointers from the server for a "read messages" operation
 486  *
 487  * servcmd:             the citadel command to send to the citserver
 488  */
 489 int load_msg_ptrs(const char *servcmd,
 490                   const char *filter,
 491                   StrBuf *FoundCharset,
 492                   SharedMessageStatus *Stat,
 493                   void **ViewSpecific,
 494                   load_msg_ptrs_detailheaders LH,
 495                   StrBuf *FetchMessageList,
 496                   eMessageField *MessageFieldList,
 497                   long HeaderCount)
 498 {
 499         wcsession *WCC = WC;
 500         message_summary *Msg;
 501         StrBuf *Buf, *Buf2;
 502         long len;
 503         int n;
 504         int skipit;
 505         const char *Ptr = NULL;
 506         int StatMajor;
 507
 508         Stat->lowest_found = LONG_MAX;
 509         Stat->highest_found = LONG_MIN;
 510
 511         if (WCC->summ != NULL) {
 512                 DeleteHash(&WCC->summ);
 513         }
 514         WCC->summ = NewHash(1, Flathash);
 515
 516         Buf = NewStrBuf();
 517         serv_puts(servcmd);
 518         StrBuf_ServGetln(Buf);
 519         StatMajor = GetServerStatus(Buf, NULL);
 520         switch (StatMajor) {
 521         case 1:
 522                 break;
 523         case 8:
 524                 if (filter != NULL) {
 525                         serv_puts(filter);
 526                         serv_puts("000");
 527                         break;
 528                 }
 529                 else if (FetchMessageList != NULL) {
 530                         serv_putbuf(FetchMessageList);
 531                         break;
 532                 }
 533                 /* fall back to empty filter in case of we were fooled... */
 534                 serv_puts("");
 535                 serv_puts("000");
 536                 break;
 537         default:
 538                 FreeStrBuf(&Buf);
 539                 return (Stat->nummsgs);
 540         }
 541         Buf2 = NewStrBuf();
 542         while (len = StrBuf_ServGetln(Buf),
 543                ((len >= 0) &&
 544                 ((len != 3) ||
 545                  strcmp(ChrPtr(Buf), "000")!= 0)))
 546         {
 547                 if (Stat->nummsgs < Stat->maxload) {
 548                         skipit = 0;
 549                         Ptr = NULL;
 550                         Msg = (message_summary*)malloc(sizeof(message_summary));
 551                         memset(Msg, 0, sizeof(message_summary));
 552
 553                         Msg->msgnum = StrBufExtractNext_long(Buf, &Ptr, '|');
 554                         Msg->date = StrBufExtractNext_long(Buf, &Ptr, '|');
 555                         if (MessageFieldList != NULL) {
 556                                 long i;
 557                                 for (i = 0; i < HeaderCount; i++) {
 558                                         StrBufExtract_NextToken(Buf2, Buf, &Ptr, '|');
 559                                         if (StrLength(Buf2) > 0) {
 560                                                 EvaluateMsgHdrEnum(MessageFieldList[i], Msg, Buf2, FoundCharset);
 561                                         }
 562                                 }
 563                         }
 564                         else {
 565                                 if (Stat->nummsgs == 0) {
 566                                         if (Msg->msgnum < Stat->lowest_found) {
 567                                                 Stat->lowest_found = Msg->msgnum;
 568                                         }
 569                                         if (Msg->msgnum > Stat->highest_found) {
 570                                                 Stat->highest_found = Msg->msgnum;
 571                                         }
 572                                 }
 573
 574                                 if ((Msg->msgnum == 0) && (StrLength(Buf) < 32)) {
 575                                         free(Msg);
 576                                         continue;
 577                                 }
 578                         }
 579                         /*
 580                          * as citserver probably gives us messages in forward date sorting
 581                          * nummsgs should be the same order as the message date.
 582                          */
 583                         if (Msg->date == 0) {
 584                                 Msg->date = Stat->nummsgs;
 585                                 if (StrLength(Buf) < 32)
 586                                         skipit = 1;
 587                         }
 588                         if ((!skipit) && (LH != NULL)) {
 589                                 if (!LH(Buf, &Ptr, Msg, Buf2, ViewSpecific)){
 590                                         free(Msg);
 591                                         continue;
 592                                 }
 593                         }
 594                         n = Msg->msgnum;
 595                         Put(WCC->summ, (const char *)&n, sizeof(n), Msg, DestroyMessageSummary);
 596                 }
 597                 Stat->nummsgs++;
 598         }
 599         FreeStrBuf(&Buf2);
 600         FreeStrBuf(&Buf);
 601         return (Stat->nummsgs);
 602 }
 603
 604
 605
 606 /**
 607  * \brief sets FlagToSet for each of ScanMe that appears in MatchMSet
 608  * \param ScanMe List of BasicMsgStruct to be searched it MatchSet
 609  * \param MatchMSet MSet we want to flag
 610  * \param FlagToSet Flag to set on each BasicMsgStruct->Flags if in MSet
 611  */
 612 long SetFlagsFromMSet(HashList *ScanMe, MSet *MatchMSet, int FlagToSet, int Reverse)
 613 {
 614         const char *HashKey;
 615         long HKLen;
 616         long count = 0;
 617         HashPos *at;
 618         void *vMsg;
 619         message_summary *Msg;
 620
 621         at = GetNewHashPos(ScanMe, 0);
 622         while (GetNextHashPos(ScanMe, at, &HKLen, &HashKey, &vMsg)) {
 623                 /* Are you a new message, or an old message? */
 624                 Msg = (message_summary*) vMsg;
 625                 if (Reverse && IsInMSetList(MatchMSet, Msg->msgnum)) {
 626                         Msg->Flags = Msg->Flags | FlagToSet;
 627                         count++;
 628                 }
 629                 else if (!Reverse && !IsInMSetList(MatchMSet, Msg->msgnum)) {
 630                         Msg->Flags = Msg->Flags | FlagToSet;
 631                         count++;
 632                 }
 633         }
 634         DeleteHashPos(&at);
 635         return count;
 636 }
 637
 638
 639 long load_seen_flags(void)
 640 {
 641         long count = 0;
 642         StrBuf *OldMsg;
 643         wcsession *WCC = WC;
 644         MSet *MatchMSet;
 645
 646         OldMsg = NewStrBuf();
 647         serv_puts("GTSN");
 648         StrBuf_ServGetln(OldMsg);
 649         if (GetServerStatus(OldMsg, NULL) == 2) {
 650                 StrBufCutLeft(OldMsg, 4);
 651         }
 652         else {
 653                 FreeStrBuf(&OldMsg);
 654                 return 0;
 655         }
 656
 657         if (ParseMSet(&MatchMSet, OldMsg))
 658         {
 659                 count = SetFlagsFromMSet(WCC->summ, MatchMSet, MSGFLAG_READ, 0);
 660         }
 661         DeleteMSet(&MatchMSet);
 662         FreeStrBuf(&OldMsg);
 663         return count;
 664 }
 665
 666 extern readloop_struct rlid[];
 667
 668 typedef struct _RoomRenderer{
 669         int RoomType;
 670
 671         GetParamsGetServerCall_func GetParamsGetServerCall;
 672
 673         PrintViewHeader_func PrintPageHeader;
 674         PrintViewHeader_func PrintViewHeader;
 675         LoadMsgFromServer_func LoadMsgFromServer;
 676         RenderView_or_Tail_func RenderView_or_Tail;
 677         View_Cleanup_func ViewCleanup;
 678         load_msg_ptrs_detailheaders LHParse;
 679         long HeaderCount;
 680         StrBuf *FetchMessageList;
 681         eMessageField *MessageFieldList;
 682 } RoomRenderer;
 683
 684
 685 /*
 686  * command loop for reading messages
 687  *
 688  * Set oper to "readnew" or "readold" or "readfwd" or "headers" or "readgt" or "readlt" or "do_search"
 689  */
 690 void readloop(long oper, eCustomRoomRenderer ForceRenderer)
 691 {
 692         RoomRenderer *ViewMsg;
 693         void *vViewMsg;
 694         void *vMsg;
 695         message_summary *Msg;
 696         char cmd[256] = "";
 697         char filter[256] = "";
 698         int i, r;
 699         wcsession *WCC = WC;
 700         HashPos *at;
 701         const char *HashKey;
 702         long HKLen;
 703         WCTemplputParams SubTP;
 704         SharedMessageStatus Stat;
 705         void *ViewSpecific = NULL;
 706
 707         if (havebstr("is_summary") && (1 == (ibstr("is_summary")))) {
 708                 WCC->CurRoom.view = VIEW_MAILBOX;
 709         }
 710
 711         if (havebstr("view")) {
 712                 WCC->CurRoom.view = ibstr("view");
 713         }
 714
 715         memset(&Stat, 0, sizeof(SharedMessageStatus));
 716         Stat.maxload = 10000;
 717         Stat.lowest_found = (-1);
 718         Stat.highest_found = (-1);
 719         if (ForceRenderer == eUseDefault)
 720                 GetHash(ReadLoopHandler, IKEY(WCC->CurRoom.view), &vViewMsg);
 721         else
 722                 GetHash(ReadLoopHandler, IKEY(ForceRenderer), &vViewMsg);
 723         if (vViewMsg == NULL) {
 724                 WCC->CurRoom.view = VIEW_BBS;
 725                 GetHash(ReadLoopHandler, IKEY(WCC->CurRoom.view), &vViewMsg);
 726         }
 727         if (vViewMsg == NULL) {
 728                 return;                 /* TODO: print message */
 729         }
 730
 731         ViewMsg = (RoomRenderer*) vViewMsg;
 732         if (ViewMsg->PrintPageHeader == NULL)
 733                 output_headers(1, 1, 1, 0, 0, 0);
 734         else
 735                 ViewMsg->PrintPageHeader(&Stat, ViewSpecific);
 736
 737         if (ViewMsg->GetParamsGetServerCall != NULL) {
 738                 r = ViewMsg->GetParamsGetServerCall(
 739                        &Stat,
 740                        &ViewSpecific,
 741                        oper,
 742                        cmd, sizeof(cmd),
 743                        filter, sizeof(filter)
 744                 );
 745         } else {
 746                 r = 0;
 747         }
 748
 749         switch(r)
 750         {
 751         case 400:
 752         case 404:
 753
 754                 return;
 755         case 300: /* the callback hook should do the work for us here, since he knows what to do. */
 756                 return;
 757         case 200:
 758         default:
 759                 break;
 760         }
 761         if (!IsEmptyStr(cmd)) {
 762                 const char *p = NULL;
 763                 StrBuf *FoundCharset = NULL;
 764                 if (!IsEmptyStr(filter))
 765                         p = filter;
 766                 if (ViewMsg->HeaderCount > 0) {
 767                         FoundCharset = NewStrBuf();
 768                 }
 769                 Stat.nummsgs = load_msg_ptrs(cmd, p,
 770                                              FoundCharset,
 771                                              &Stat,
 772                                              &ViewSpecific,
 773                                              ViewMsg->LHParse,
 774                                              ViewMsg->FetchMessageList,
 775                                              ViewMsg->MessageFieldList,
 776                                              ViewMsg->HeaderCount);
 777                 FreeStrBuf(&FoundCharset);
 778         }
 779
 780         if (Stat.sortit) {
 781                 CompareFunc SortIt;
 782                 StackContext(NULL, &SubTP, NULL, CTX_MAILSUM, 0, NULL);
 783                 {
 784                         SortIt =  RetrieveSort(&SubTP,
 785                                                NULL, 0,
 786                                                HKEY("date"),
 787                                                Stat.defaultsortorder);
 788                 }
 789                 UnStackContext(&SubTP);
 790                 if (SortIt != NULL)
 791                         SortByPayload(WCC->summ, SortIt);
 792         }
 793         if (Stat.startmsg < 0) {
 794                 Stat.startmsg =  0;
 795         }
 796
 797         if (Stat.load_seen) Stat.numNewmsgs = load_seen_flags();
 798
 799         /*
 800          * Print any inforation above the message list...
 801          */
 802         if (ViewMsg->PrintViewHeader != NULL)
 803                 ViewMsg->PrintViewHeader(&Stat, &ViewSpecific);
 804
 805         WCC->startmsg =  Stat.startmsg;
 806         WCC->maxmsgs = Stat.maxmsgs;
 807         WCC->num_displayed = 0;
 808
 809         /* Put some helpful data in vars for mailsummary_json */
 810         {
 811                 StrBuf *Foo;
 812
 813                 Foo = NewStrBuf ();
 814                 StrBufPrintf(Foo, "%ld", Stat.nummsgs);
 815                 PutBstr(HKEY("__READLOOP:TOTALMSGS"), NewStrBufDup(Foo)); /* keep Foo! */
 816
 817                 StrBufPrintf(Foo, "%ld", Stat.numNewmsgs);
 818                 PutBstr(HKEY("__READLOOP:NEWMSGS"), NewStrBufDup(Foo)); /* keep Foo! */
 819
 820                 StrBufPrintf(Foo, "%ld", Stat.startmsg);
 821                 PutBstr(HKEY("__READLOOP:STARTMSG"), Foo); /* store Foo elsewhere, descope it here. */
 822         }
 823
 824         /*
 825          * iterate over each message. if we need to load an attachment, do it here.
 826          */
 827
 828         if ((ViewMsg->LoadMsgFromServer != NULL) &&
 829             (!IsEmptyStr(cmd)))
 830         {
 831                 at = GetNewHashPos(WCC->summ, 0);
 832                 Stat.num_displayed = i = 0;
 833                 while ( GetNextHashPos(WCC->summ, at, &HKLen, &HashKey, &vMsg)) {
 834                         Msg = (message_summary*) vMsg;
 835                         if ((Msg->msgnum >= Stat.startmsg) && (Stat.num_displayed <= Stat.maxmsgs)) {
 836                                 ViewMsg->LoadMsgFromServer(&Stat,
 837                                                            &ViewSpecific,
 838                                                            Msg,
 839                                                            (Msg->Flags & MSGFLAG_READ) != 0,
 840                                                            i);
 841                         }
 842                         i++;
 843                 }
 844                 DeleteHashPos(&at);
 845         }
 846
 847         /*
 848          * Done iterating the message list. now tasks we want to do after.
 849          */
 850         if (ViewMsg->RenderView_or_Tail != NULL)
 851                 ViewMsg->RenderView_or_Tail(&Stat, &ViewSpecific, oper);
 852
 853         if (ViewMsg->ViewCleanup != NULL)
 854                 ViewMsg->ViewCleanup(&ViewSpecific);
 855
 856         WCC->startmsg = 0;
 857         WCC->maxmsgs = 0;
 858         if (WCC->summ != NULL) {
 859                 DeleteHash(&WCC->summ);
 860         }
 861 }
 862
 863
 864 /*
 865  * Back end for post_message()
 866  * ... this is where the actual message gets transmitted to the server.
 867  */
 868 void post_mime_to_server(void) {
 869         wcsession *WCC = WC;
 870         char top_boundary[SIZ];
 871         char alt_boundary[SIZ];
 872         int is_multipart = 0;
 873         static int seq = 0;
 874         wc_mime_attachment *att;
 875         char *encoded;
 876         size_t encoded_length;
 877         size_t encoded_strlen;
 878         char *txtmail = NULL;
 879         int include_text_alt = 0;       /* Set to nonzero to include multipart/alternative text/plain */
 880
 881         sprintf(top_boundary, "Citadel--Multipart--%s--%04x--%04x",
 882                 ChrPtr(WCC->serv_info->serv_fqdn),
 883                 getpid(),
 884                 ++seq
 885         );
 886         sprintf(alt_boundary, "Citadel--Multipart--%s--%04x--%04x",
 887                 ChrPtr(WCC->serv_info->serv_fqdn),
 888                 getpid(),
 889                 ++seq
 890         );
 891
 892         /* RFC2045 requires this, and some clients look for it... */
 893         serv_puts("MIME-Version: 1.0");
 894         serv_puts("X-Mailer: " PACKAGE_STRING);
 895
 896         /* If there are attachments, we have to do multipart/mixed */
 897         if (GetCount(WCC->attachments) > 0) {
 898                 is_multipart = 1;
 899         }
 900
 901         /* Only do multipart/alternative for mailboxes.  BBS and Wiki rooms don't need it. */
 902         if ((WCC->CurRoom.view == VIEW_MAILBOX) ||
 903             (WCC->CurRoom.view == VIEW_JSON_LIST))
 904         {
 905                 include_text_alt = 1;
 906         }
 907
 908         if (is_multipart) {
 909                 /* Remember, serv_printf() appends an extra newline */
 910                 serv_printf("Content-type: multipart/mixed; boundary=\"%s\"\n", top_boundary);
 911                 serv_printf("This is a multipart message in MIME format.\n");
 912                 serv_printf("--%s", top_boundary);
 913         }
 914
 915         /* Remember, serv_printf() appends an extra newline */
 916         if (include_text_alt) {
 917                 StrBuf *Buf;
 918                 serv_printf("Content-type: multipart/alternative; "
 919                         "boundary=\"%s\"\n", alt_boundary);
 920                 serv_printf("This is a multipart message in MIME format.\n");
 921                 serv_printf("--%s", alt_boundary);
 922
 923                 serv_puts("Content-type: text/plain; charset=utf-8");
 924                 serv_puts("Content-Transfer-Encoding: quoted-printable");
 925                 serv_puts("");
 926                 txtmail = html_to_ascii(bstr("msgtext"), 0, 80, 0);
 927                 Buf = NewStrBufPlain(txtmail, -1);
 928                 free(txtmail);
 929
 930                 text_to_server_qp(Buf);     /* Transmit message in quoted-printable encoding */
 931                 FreeStrBuf(&Buf);
 932                 serv_printf("\n--%s", alt_boundary);
 933         }
 934
 935         if (havebstr("markdown"))
 936         {
 937                 serv_puts("Content-type: text/x-markdown; charset=utf-8");
 938                 serv_puts("Content-Transfer-Encoding: quoted-printable");
 939                 serv_puts("");
 940                 text_to_server_qp(sbstr("msgtext"));    /* Transmit message in quoted-printable encoding */
 941         }
 942         else
 943         {
 944                 serv_puts("Content-type: text/html; charset=utf-8");
 945                 serv_puts("Content-Transfer-Encoding: quoted-printable");
 946                 serv_puts("");
 947                 serv_puts("<html><body>\r\n");
 948                 text_to_server_qp(sbstr("msgtext"));    /* Transmit message in quoted-printable encoding */
 949                 serv_puts("</body></html>\r\n");
 950         }
 951
 952         if (include_text_alt) {
 953                 serv_printf("--%s--", alt_boundary);
 954         }
 955
 956         if (is_multipart) {
 957                 long len;
 958                 const char *Key;
 959                 void *vAtt;
 960                 HashPos  *it;
 961
 962                 /* Add in the attachments */
 963                 it = GetNewHashPos(WCC->attachments, 0);
 964                 while (GetNextHashPos(WCC->attachments, it, &len, &Key, &vAtt)) {
 965                         att = (wc_mime_attachment *)vAtt;
 966                         if (att->length == 0)
 967                                 continue;
 968                         encoded_length = ((att->length * 150) / 100);
 969                         encoded = malloc(encoded_length);
 970                         if (encoded == NULL) break;
 971                         encoded_strlen = CtdlEncodeBase64(encoded, ChrPtr(att->Data), StrLength(att->Data), 1);
 972
 973                         serv_printf("--%s", top_boundary);
 974                         serv_printf("Content-type: %s", ChrPtr(att->ContentType));
 975                         serv_printf("Content-disposition: attachment; filename=\"%s\"", ChrPtr(att->FileName));
 976                         serv_puts("Content-transfer-encoding: base64");
 977                         serv_puts("");
 978                         serv_write(encoded, encoded_strlen);
 979                         serv_puts("");
 980                         serv_puts("");
 981                         free(encoded);
 982                 }
 983                 serv_printf("--%s--", top_boundary);
 984                 DeleteHashPos(&it);
 985         }
 986
 987         serv_puts("000");
 988 }
 989
 990
 991 /*
 992  * Post message (or don't post message)
 993  *
 994  * Note regarding the "dont_post" variable:
 995  * A random value (actually, it's just a timestamp) is inserted as a hidden
 996  * field called "postseq" when the display_enter page is generated.  This
 997  * value is checked when posting, using the static variable dont_post.  If a
 998  * user attempts to post twice using the same dont_post value, the message is
 999  * discarded.  This prevents the accidental double-saving of the same message
1000  * if the user happens to click the browser "back" button.
1001  */
1002 void post_message(void)
1003 {
1004         StrBuf *UserName;
1005         StrBuf *EmailAddress;
1006         StrBuf *EncBuf;
1007         char buf[1024];
1008         StrBuf *encoded_subject = NULL;
1009         static long dont_post = (-1L);
1010         int is_anonymous = 0;
1011         const StrBuf *display_name = NULL;
1012         wcsession *WCC = WC;
1013         StrBuf *Buf;
1014
1015         if (havebstr("force_room")) {
1016                 gotoroom(sbstr("force_room"));
1017         }
1018
1019         if (havebstr("display_name")) {
1020                 display_name = sbstr("display_name");
1021                 if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1022                         display_name = NULL;
1023                         is_anonymous = 1;
1024                 }
1025         }
1026
1027         if (!strcasecmp(bstr("submit_action"), "cancel")) {
1028                 AppendImportantMessage(_("Cancelled.  Message was not posted."), -1);
1029         } else if (lbstr("postseq") == dont_post) {
1030                 AppendImportantMessage(
1031                         _("Automatically cancelled because you have already "
1032                           "saved this message."), -1);
1033         } else {
1034                 const char CMD[] = "ENT0 1|%s|%d|4|%s|%s||%s|%s|%s|%s|%s";
1035                 StrBuf *Recp = NULL;
1036                 StrBuf *Cc = NULL;
1037                 StrBuf *Bcc = NULL;
1038                 StrBuf *wikipage = NULL;
1039                 const StrBuf *my_email_addr = NULL;
1040                 StrBuf *CmdBuf = NULL;
1041                 StrBuf *references = NULL;
1042                 int saving_to_drafts = 0;
1043                 long HeaderLen = 0;
1044
1045                 saving_to_drafts = !strcasecmp(bstr("submit_action"), "draft");
1046                 Buf = NewStrBuf();
1047
1048                 if (saving_to_drafts) {
1049                         /* temporarily change to the drafts room */
1050                         serv_puts("GOTO _DRAFTS_");
1051                         StrBuf_ServGetln(Buf);
1052                         if (GetServerStatusMsg(Buf, NULL, 1, 2) != 2) {
1053                                 /* You probably don't even have a dumb Drafts folder */
1054                                 syslog(LOG_DEBUG, "%s:%d: server save to drafts error: %s\n", __FILE__, __LINE__, ChrPtr(Buf) + 4);
1055                                 AppendImportantMessage(_("Saved to Drafts failed: "), -1);
1056                                 display_enter();
1057                                 FreeStrBuf(&Buf);
1058                                 return;
1059                         }
1060                 }
1061
1062                 if (havebstr("references"))
1063                 {
1064                         const StrBuf *ref = sbstr("references");
1065                         references = NewStrBufDup(ref);
1066                         if (*ChrPtr(references) == '|') {       /* remove leading '|' if present */
1067                                 StrBufCutLeft(references, 1);
1068                         }
1069                         StrBufReplaceChars(references, '|', '!');
1070                 }
1071                 if (havebstr("subject")) {
1072                         const StrBuf *Subj;
1073                         /*
1074                          * make enough room for the encoded string;
1075                          * plus the QP header
1076                          */
1077                         Subj = sbstr("subject");
1078
1079                         StrBufRFC2047encode(&encoded_subject, Subj);
1080                 }
1081                 UserName = NewStrBuf();
1082                 EmailAddress = NewStrBuf();
1083                 EncBuf = NewStrBuf();
1084
1085                 Recp = StrBufSanitizeEmailRecipientVector(sbstr("recp"), UserName, EmailAddress, EncBuf);
1086                 Cc = StrBufSanitizeEmailRecipientVector(sbstr("cc"), UserName, EmailAddress, EncBuf);
1087                 Bcc = StrBufSanitizeEmailRecipientVector(sbstr("bcc"), UserName, EmailAddress, EncBuf);
1088
1089                 FreeStrBuf(&UserName);
1090                 FreeStrBuf(&EmailAddress);
1091                 FreeStrBuf(&EncBuf);
1092
1093                 wikipage = NewStrBufDup(sbstr("page"));
1094                 str_wiki_index(wikipage);
1095                 my_email_addr = sbstr("my_email_addr");
1096
1097                 HeaderLen = StrLength(Recp) +
1098                         StrLength(encoded_subject) +
1099                         StrLength(Cc) +
1100                         StrLength(Bcc) +
1101                         StrLength(wikipage) +
1102                         StrLength(my_email_addr) +
1103                         StrLength(references);
1104                 CmdBuf = NewStrBufPlain(NULL, sizeof (CMD) + HeaderLen);
1105                 StrBufPrintf(CmdBuf,
1106                              CMD,
1107                              saving_to_drafts?"":ChrPtr(Recp),
1108                              is_anonymous,
1109                              ChrPtr(encoded_subject),
1110                              ChrPtr(display_name),
1111                              saving_to_drafts?"":ChrPtr(Cc),
1112                              saving_to_drafts?"":ChrPtr(Bcc),
1113                              ChrPtr(wikipage),
1114                              ChrPtr(my_email_addr),
1115                              ChrPtr(references));
1116                 FreeStrBuf(&references);
1117                 FreeStrBuf(&encoded_subject);
1118                 free(wikipage);
1119
1120                 if ((HeaderLen + StrLength(sbstr("msgtext")) < 10) &&
1121                     (GetCount(WCC->attachments) == 0)){
1122                         AppendImportantMessage(_("Refusing to post empty message.\n"), -1);
1123                         FreeStrBuf(&CmdBuf);
1124
1125                 }
1126                 else
1127                 {
1128                         syslog(LOG_DEBUG, "%s\n", ChrPtr(CmdBuf));
1129                         serv_puts(ChrPtr(CmdBuf));
1130                         FreeStrBuf(&CmdBuf);
1131
1132                         StrBuf_ServGetln(Buf);
1133                         if (GetServerStatus(Buf, NULL) == 4) {
1134                                 if (saving_to_drafts) {
1135                                         if (  (havebstr("recp"))
1136                                               || (havebstr("cc"  ))
1137                                               || (havebstr("bcc" )) ) {
1138                                                 /* save recipient headers or room to post to */
1139                                                 serv_printf("To: %s", ChrPtr(Recp));
1140                                                 serv_printf("Cc: %s", ChrPtr(Cc));
1141                                                 serv_printf("Bcc: %s", ChrPtr(Bcc));
1142                                         } else {
1143                                                 serv_printf("X-Citadel-Room: %s", ChrPtr(WCC->CurRoom.name));
1144                                         }
1145                                 }
1146                                 post_mime_to_server();
1147                                 if (saving_to_drafts) {
1148                                         AppendImportantMessage(_("Message has been saved to Drafts.\n"), -1);
1149                                         gotoroom(WCC->CurRoom.name);
1150                                         fixview();
1151                                         readloop(readnew, eUseDefault);
1152                                         FreeStrBuf(&Buf);
1153                                         return;
1154                                 } else if (  (havebstr("recp"))
1155                                              || (havebstr("cc"  ))
1156                                              || (havebstr("bcc" ))
1157                                         ) {
1158                                         AppendImportantMessage(_("Message has been sent.\n"), -1);
1159                                 }
1160                                 else {
1161                                         AppendImportantMessage(_("Message has been posted.\n"), -1);
1162                                 }
1163                                 dont_post = lbstr("postseq");
1164                         } else {
1165                                 syslog(LOG_DEBUG, "%s:%d: server post error: %s", __FILE__, __LINE__, ChrPtr(Buf) + 4);
1166                                 AppendImportantMessage(ChrPtr(Buf) + 4, StrLength(Buf) - 4);
1167                                 display_enter();
1168                                 if (saving_to_drafts) gotoroom(WCC->CurRoom.name);
1169                                 FreeStrBuf(&Recp);
1170                                 FreeStrBuf(&Buf);
1171                                 FreeStrBuf(&Cc);
1172                                 FreeStrBuf(&Bcc);
1173                                 return;
1174                         }
1175                 }
1176                 FreeStrBuf(&Recp);
1177                 FreeStrBuf(&Buf);
1178                 FreeStrBuf(&Cc);
1179                 FreeStrBuf(&Bcc);
1180         }
1181
1182         DeleteHash(&WCC->attachments);
1183
1184         /*
1185          *  We may have been supplied with instructions regarding the location
1186          *  to which we must return after posting.  If found, go there.
1187          */
1188         if (havebstr("return_to")) {
1189                 http_redirect(bstr("return_to"));
1190         }
1191         /*
1192          *  If we were editing a page in a wiki room, go to that page now.
1193          */
1194         else if (havebstr("page")) {
1195                 snprintf(buf, sizeof buf, "wiki?page=%s", bstr("page"));
1196                 http_redirect(buf);
1197         }
1198         /*
1199          *  Otherwise, just go to the "read messages" loop.
1200          */
1201         else {
1202                 fixview();
1203                 readloop(readnew, eUseDefault);
1204         }
1205 }
1206
1207
1208 /*
1209  * Client is uploading an attachment
1210  */
1211 void upload_attachment(void) {
1212         wcsession *WCC = WC;
1213         const char *pch;
1214         int n;
1215         const char *newn;
1216         long newnlen;
1217         void *v;
1218         wc_mime_attachment *att;
1219         const StrBuf *Tmpl = sbstr("template");
1220         const StrBuf *MimeType = NULL;
1221         const StrBuf *UID;
1222
1223         begin_burst();
1224         syslog(LOG_DEBUG, "upload_attachment()\n");
1225         if (!Tmpl) wc_printf("upload_attachment()<br>\n");
1226
1227         if (WCC->upload_length <= 0) {
1228                 syslog(LOG_DEBUG, "ERROR no attachment was uploaded\n");
1229                 if (Tmpl)
1230                 {
1231                         putlbstr("UPLOAD_ERROR", 1);
1232                         MimeType = DoTemplate(SKEY(Tmpl), NULL, &NoCtx);
1233                 }
1234                 else      wc_printf("ERROR no attachment was uploaded<br>\n");
1235                 http_transmit_thing(ChrPtr(MimeType), 0);
1236
1237                 return;
1238         }
1239
1240         syslog(LOG_DEBUG, "Client is uploading %d bytes\n", WCC->upload_length);
1241         if (Tmpl) putlbstr("UPLOAD_LENGTH", WCC->upload_length);
1242         else wc_printf("Client is uploading %d bytes<br>\n", WCC->upload_length);
1243
1244         att = (wc_mime_attachment*)malloc(sizeof(wc_mime_attachment));
1245         memset(att, 0, sizeof(wc_mime_attachment ));
1246         att->length = WCC->upload_length;
1247         att->ContentType = NewStrBufPlain(WCC->upload_content_type, -1);
1248         att->FileName = NewStrBufDup(WCC->upload_filename);
1249         UID = sbstr("qquuid");
1250         if (UID)
1251                 att->PartNum = NewStrBufDup(UID);
1252
1253         if (WCC->attachments == NULL) {
1254                 WCC->attachments = NewHash(1, Flathash);
1255         }
1256
1257         /* And add it to the list. */
1258         n = 0;
1259         if ((GetCount(WCC->attachments) > 0) &&
1260             GetHashAt(WCC->attachments,
1261                       GetCount(WCC->attachments) -1,
1262                       &newnlen, &newn, &v))
1263             n = *((int*) newn) + 1;
1264         Put(WCC->attachments, IKEY(n), att, DestroyMime);
1265
1266         /*
1267          * Mozilla sends a simple filename, which is what we want,
1268          * but Satan's Browser sends an entire pathname.  Reduce
1269          * the path to just a filename if we need to.
1270          */
1271         pch = strrchr(ChrPtr(att->FileName), '/');
1272         if (pch != NULL) {
1273                 StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1274         }
1275         pch = strrchr(ChrPtr(att->FileName), '\\');
1276         if (pch != NULL) {
1277                 StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1278         }
1279
1280         /*
1281          * Transfer control of this memory from the upload struct
1282          * to the attachment struct.
1283          */
1284         att->Data = WCC->upload;
1285         WCC->upload = NULL;
1286         WCC->upload_length = 0;
1287
1288         if (Tmpl) MimeType = DoTemplate(SKEY(Tmpl), NULL, &NoCtx);
1289         http_transmit_thing(ChrPtr(MimeType), 0);
1290 }
1291
1292
1293 /*
1294  * Remove an attachment from the message currently being composed.
1295  *
1296  * Currently we identify the attachment to be removed by its filename.
1297  * There is probably a better way to do this.
1298  */
1299 void remove_attachment(void) {
1300         wcsession *WCC = WC;
1301         wc_mime_attachment *att;
1302         void *vAtt;
1303         StrBuf *WhichAttachment;
1304         HashPos *at;
1305         long len;
1306         int found=0;
1307         const char *key;
1308
1309         WhichAttachment = NewStrBufDup(sbstr("which_attachment"));
1310         if (ChrPtr(WhichAttachment)[0] == '/')
1311                 StrBufCutLeft(WhichAttachment, 1);
1312         StrBufUnescape(WhichAttachment, 0);
1313         at = GetNewHashPos(WCC->attachments, 0);
1314         do {
1315                 vAtt = NULL;
1316                 GetHashPos(WCC->attachments, at, &len, &key, &vAtt);
1317
1318                 att = (wc_mime_attachment*) vAtt;
1319                 if ((att != NULL) &&
1320                     (
1321                             !strcmp(ChrPtr(WhichAttachment), ChrPtr(att->FileName)) ||
1322                     ((att->PartNum != NULL) &&
1323                      !strcmp(ChrPtr(WhichAttachment), ChrPtr(att->PartNum)))
1324                             ))
1325                 {
1326                         DeleteEntryFromHash(WCC->attachments, at);
1327                         found=1;
1328                         break;
1329                 }
1330         }
1331         while (NextHashPos(WCC->attachments, at));
1332
1333         FreeStrBuf(&WhichAttachment);
1334         wc_printf("remove_attachment(%d) completed\n", found);
1335 }
1336
1337
1338 const char *ReplyToModeStrings [3] = {
1339         "reply",
1340         "replyall",
1341         "forward"
1342 };
1343 typedef enum _eReplyToNodes {
1344         eReply,
1345         eReplyAll,
1346         eForward
1347 }eReplyToNodes;
1348
1349 /*
1350  * display the message entry screen
1351  */
1352 void display_enter(void)
1353 {
1354         const char *ReplyingModeStr;
1355         eReplyToNodes ReplyMode = eReply;
1356         StrBuf *Line;
1357         long Result;
1358         int rc;
1359         const StrBuf *display_name = NULL;
1360         int recipient_required = 0;
1361         int subject_required = 0;
1362         int is_anonymous = 0;
1363         wcsession *WCC = WC;
1364         int i = 0;
1365         long replying_to;
1366
1367         int prefer_md;
1368
1369         get_pref_yesno("markdown", &prefer_md, 0);
1370
1371         if (havebstr("force_room")) {
1372                 gotoroom(sbstr("force_room"));
1373         }
1374
1375         display_name = sbstr("display_name");
1376         if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1377                 display_name = NULL;
1378                 is_anonymous = 1;
1379         }
1380
1381         /*
1382          * First, do we have permission to enter messages in this room at all?
1383          */
1384         Line = NewStrBuf();
1385         serv_puts("ENT0 0");
1386         StrBuf_ServGetln(Line);
1387         rc = GetServerStatusMsg(Line, &Result, 0, 2);
1388
1389         if (Result == 570) {            /* 570 means that we need a recipient here */
1390                 recipient_required = 1;
1391         }
1392         else if (rc != 2) {             /* Any other error means that we cannot continue */
1393                 rc = GetServerStatusMsg(Line, &Result, 0, 2);
1394                 fixview();
1395                 readloop(readnew, eUseDefault);
1396                 FreeStrBuf(&Line);
1397                 return;
1398         }
1399
1400         /* Is the server strongly recommending that the user enter a message subject? */
1401         if (StrLength(Line) > 4) {
1402                 subject_required = extract_int(ChrPtr(Line) + 4, 1);
1403         }
1404
1405         /*
1406          * Are we perhaps in an address book view?  If so, then an "enter
1407          * message" command really means "add new entry."
1408          */
1409         if (WCC->CurRoom.defview == VIEW_ADDRESSBOOK) {
1410                 do_edit_vcard(-1, "", NULL, NULL, "",  ChrPtr(WCC->CurRoom.name));
1411                 FreeStrBuf(&Line);
1412                 return;
1413         }
1414
1415         /*
1416          * Are we perhaps in a calendar room?  If so, then an "enter
1417          * message" command really means "add new calendar item."
1418          */
1419         if (WCC->CurRoom.defview == VIEW_CALENDAR) {
1420                 display_edit_event();
1421                 FreeStrBuf(&Line);
1422                 return;
1423         }
1424
1425         /*
1426          * Are we perhaps in a tasks view?  If so, then an "enter
1427          * message" command really means "add new task."
1428          */
1429         if (WCC->CurRoom.defview == VIEW_TASKS) {
1430                 display_edit_task();
1431                 FreeStrBuf(&Line);
1432                 return;
1433         }
1434
1435
1436         ReplyingModeStr = bstr("replying_mode");
1437         if (ReplyingModeStr != NULL) for (i = 0; i < 3; i++) {
1438                         if (strcmp(ReplyingModeStr, ReplyToModeStrings[i]) == 0) {
1439                                 ReplyMode = (eReplyToNodes) i;
1440                                 break;
1441                         }
1442                 }
1443
1444
1445         /*
1446          * If the "replying_to" variable is set, it refers to a message
1447          * number from which we must extract some header fields...
1448          */
1449         replying_to = lbstr("replying_to");
1450         if (replying_to > 0) {
1451                 long len;
1452                 StrBuf *wefw = NULL;
1453                 StrBuf *msgn = NULL;
1454                 StrBuf *from = NULL;
1455                 StrBuf *node = NULL;
1456                 StrBuf *rfca = NULL;
1457                 StrBuf *rcpt = NULL;
1458                 StrBuf *cccc = NULL;
1459                 StrBuf *replyto = NULL;
1460                 StrBuf *nvto = NULL;
1461                 serv_printf("MSG0 %ld|1", replying_to);
1462
1463                 StrBuf_ServGetln(Line);
1464                 if (GetServerStatusMsg(Line, NULL, 0, 0) == 1)
1465                         while (len = StrBuf_ServGetln(Line),
1466                                (len >= 0) &&
1467                                ((len != 3)  ||
1468                                 strcmp(ChrPtr(Line), "000")))
1469                         {
1470                                 eMessageField which;
1471                                 if ((StrLength(Line) > 4) &&
1472                                     (ChrPtr(Line)[4] == '=') &&
1473                                     GetFieldFromMnemonic(&which, ChrPtr(Line)))
1474                                         switch (which) {
1475                                         case eMsgSubject: {
1476                                                 StrBuf *subj = NewStrBuf();
1477                                                 StrBuf *FlatSubject;
1478
1479                                                 if (ReplyMode == eForward) {
1480                                                         if (strncasecmp(ChrPtr(Line) + 5, "Fw:", 3)) {
1481                                                                 StrBufAppendBufPlain(subj, HKEY("Fw: "), 0);
1482                                                         }
1483                                                 }
1484                                                 else {
1485                                                         if (strncasecmp(ChrPtr(Line) + 5, "Re:", 3)) {
1486                                                                 StrBufAppendBufPlain(subj, HKEY("Re: "), 0);
1487                                                         }
1488                                                 }
1489                                                 StrBufAppendBufPlain(subj,
1490                                                                      ChrPtr(Line) + 5,
1491                                                                      StrLength(Line) - 5, 0);
1492                                                 FlatSubject = NewStrBufPlain(NULL, StrLength(subj));
1493                                                 StrBuf_RFC822_to_Utf8(FlatSubject, subj, NULL, NULL);
1494
1495                                                 PutBstr(HKEY("subject"), FlatSubject);
1496                                         }
1497                                                 break;
1498
1499                                         case eWeferences:
1500                                         {
1501                                                 int rrtok;
1502                                                 int rrlen;
1503
1504                                                 wefw = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1505
1506                                                 /* Trim down excessively long lists of thread references.  We eliminate the
1507                                                  * second one in the list so that the thread root remains intact.
1508                                                  */
1509                                                 rrtok = num_tokens(ChrPtr(wefw), '|');
1510                                                 rrlen = StrLength(wefw);
1511                                                 if ( ((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10) ) {
1512                                                         StrBufRemove_token(wefw, 1, '|');
1513                                                 }
1514                                                 break;
1515                                         }
1516
1517                                         case emessageId:
1518                                                 msgn = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1519                                                 break;
1520
1521                                         case eAuthor: {
1522                                                 StrBuf *FlatFrom;
1523                                                 from = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1524                                                 FlatFrom = NewStrBufPlain(NULL, StrLength(from));
1525                                                 StrBuf_RFC822_to_Utf8(FlatFrom, from, NULL, NULL);
1526                                                 FreeStrBuf(&from);
1527                                                 from = FlatFrom;
1528                                                 for (i=0; i<StrLength(from); ++i) {
1529                                                         if (ChrPtr(from)[i] == ',')
1530                                                                 StrBufPeek(from, NULL, i, ' ');
1531                                                 }
1532                                                 break;
1533                                         }
1534
1535                                         case eRecipient:
1536                                                 rcpt = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1537                                                 break;
1538
1539
1540                                         case eCarbonCopY:
1541                                                 cccc = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1542                                                 break;
1543
1544
1545                                         case eNodeName:
1546                                                 node = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1547                                                 break;
1548                                         case eReplyTo:
1549                                                 replyto = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1550                                                 break;
1551                                         case erFc822Addr: {
1552                                                 StrBuf *FlatRFCA;
1553                                                 rfca = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1554                                                 FlatRFCA = NewStrBufPlain(NULL, StrLength(rfca));
1555                                                 StrBuf_RFC822_to_Utf8(FlatRFCA, rfca, NULL, NULL);
1556                                                 FreeStrBuf(&rfca);
1557                                                 rfca = FlatRFCA;
1558                                                 break;
1559                                         }
1560                                         case eenVelopeTo:
1561                                                 nvto = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1562                                                 putbstr("nvto", nvto);
1563                                                 break;
1564                                         case eXclusivID:
1565                                         case eHumanNode:
1566                                         case eJournal:
1567                                         case eListID:
1568                                         case eMesageText:
1569                                         case eOriginalRoom:
1570                                         case eMessagePath:
1571                                         case eSpecialField:
1572                                         case eTimestamp:
1573                                         case eHeaderOnly:
1574                                         case eFormatType:
1575                                         case eMessagePart:
1576                                         case eSubFolder:
1577                                         case ePevious:
1578                                         case eLastHeader:
1579                                                 break;
1580
1581                                         }
1582                         }
1583
1584
1585                 if (StrLength(wefw) + StrLength(msgn) > 0) {
1586                         StrBuf *refs = NewStrBuf();
1587                         if (StrLength(wefw) > 0) {
1588                                 StrBufAppendBuf(refs, wefw, 0);
1589                         }
1590                         if ( (StrLength(wefw) > 0) &&
1591                              (StrLength(msgn) > 0) )
1592                         {
1593                                 StrBufAppendBufPlain(refs, HKEY("|"), 0);
1594                         }
1595                         if (StrLength(msgn) > 0) {
1596                                 StrBufAppendBuf(refs, msgn, 0);
1597                         }
1598                         PutBstr(HKEY("references"), refs);
1599                 }
1600
1601                 /*
1602                  * If this is a Reply or a ReplyAll, copy the sender's email into the To: field
1603                  */
1604                 if ((ReplyMode == eReply) || (ReplyMode == eReplyAll))
1605                 {
1606                         StrBuf *to_rcpt;
1607                         if ((StrLength(replyto) > 0) && (ReplyMode == eReplyAll)) {
1608                                 to_rcpt = NewStrBuf();
1609                                 StrBufAppendBuf(to_rcpt, replyto, 0);
1610                         }
1611                         else if (StrLength(rfca) > 0) {
1612                                 to_rcpt = NewStrBuf();
1613                                 StrBufAppendBuf(to_rcpt, from, 0);
1614                                 StrBufAppendBufPlain(to_rcpt, HKEY(" <"), 0);
1615                                 StrBufAppendBuf(to_rcpt, rfca, 0);
1616                                 StrBufAppendBufPlain(to_rcpt, HKEY(">"), 0);
1617                         }
1618                         else {
1619                                 to_rcpt =  from;
1620                                 from = NULL;
1621                                 if (    (StrLength(node) > 0)
1622                                         && (strcasecmp(ChrPtr(node), ChrPtr(WCC->serv_info->serv_nodename)))
1623                                 ) {
1624                                         StrBufAppendBufPlain(to_rcpt, HKEY(" @ "), 0);
1625                                         StrBufAppendBuf(to_rcpt, node, 0);
1626                                 }
1627                         }
1628                         PutBstr(HKEY("recp"), to_rcpt);
1629                 }
1630
1631                 /*
1632                  * Only if this is a ReplyAll, copy all recipients into the Cc: field
1633                  */
1634                 if (ReplyMode == eReplyAll)
1635                 {
1636                         StrBuf *cc_rcpt = rcpt;
1637                         rcpt = NULL;
1638                         if ((StrLength(cccc) > 0) && (StrLength(replyto) == 0))
1639                         {
1640                                 if (cc_rcpt != NULL)  {
1641                                         StrBufAppendPrintf(cc_rcpt, ", ");
1642                                         StrBufAppendBuf(cc_rcpt, cccc, 0);
1643                                 } else {
1644                                         cc_rcpt = cccc;
1645                                         cccc = NULL;
1646                                 }
1647                         }
1648                         if (cc_rcpt != NULL)
1649                                 PutBstr(HKEY("cc"), cc_rcpt);
1650                 }
1651                 FreeStrBuf(&wefw);
1652                 FreeStrBuf(&msgn);
1653                 FreeStrBuf(&from);
1654                 FreeStrBuf(&node);
1655                 FreeStrBuf(&rfca);
1656                 FreeStrBuf(&rcpt);
1657                 FreeStrBuf(&cccc);
1658         }
1659         FreeStrBuf(&Line);
1660         /*
1661          * Otherwise proceed normally.
1662          * Do a custom room banner with no navbar...
1663          */
1664
1665         if (recipient_required) {
1666                 const StrBuf *Recp = NULL;
1667                 const StrBuf *Cc = NULL;
1668                 const StrBuf *Bcc = NULL;
1669                 StrBuf *wikipage = NULL;
1670                 StrBuf *CmdBuf = NULL;
1671                 const char CMD[] = "ENT0 0|%s|%d|0||%s||%s|%s|%s";
1672
1673                 Recp = sbstr("recp");
1674                 Cc = sbstr("cc");
1675                 Bcc = sbstr("bcc");
1676                 wikipage = NewStrBufDup(sbstr("page"));
1677                 str_wiki_index(wikipage);
1678
1679                 CmdBuf = NewStrBufPlain(NULL,
1680                                         sizeof (CMD) +
1681                                         StrLength(Recp) +
1682                                         StrLength(display_name) +
1683                                         StrLength(Cc) +
1684                                         StrLength(Bcc) +
1685                                         StrLength(wikipage));
1686
1687                 StrBufPrintf(CmdBuf,
1688                              CMD,
1689                              ChrPtr(Recp),
1690                              is_anonymous,
1691                              ChrPtr(display_name),
1692                              ChrPtr(Cc),
1693                              ChrPtr(Bcc),
1694                              ChrPtr(wikipage)
1695                 );
1696                 serv_puts(ChrPtr(CmdBuf));
1697                 StrBuf_ServGetln(CmdBuf);
1698                 free(wikipage);
1699
1700                 rc = GetServerStatusMsg(CmdBuf, &Result, 0, 0);
1701
1702                 if (    (Result == 570)         /* invalid or missing recipient(s) */
1703                         || (Result == 550)      /* higher access required to send Internet mail */
1704                 ) {
1705                         /* These errors will have been displayed and are excusable */
1706                 }
1707                 else if (rc != 2) {     /* Any other error means that we cannot continue */
1708                         AppendImportantMessage(ChrPtr(CmdBuf) + 4, StrLength(CmdBuf) - 4);
1709                         FreeStrBuf(&CmdBuf);
1710                         fixview();
1711                         readloop(readnew, eUseDefault);
1712                         return;
1713                 }
1714                 FreeStrBuf(&CmdBuf);
1715         }
1716         if (recipient_required)
1717                 PutBstr(HKEY("__RCPTREQUIRED"), NewStrBufPlain(HKEY("1")));
1718         if (recipient_required || subject_required)
1719                 PutBstr(HKEY("__SUBJREQUIRED"), NewStrBufPlain(HKEY("1")));
1720
1721         begin_burst();
1722         output_headers(1, 0, 0, 0, 1, 0);
1723         if ((WCC->CurRoom.defview == VIEW_WIKIMD) || prefer_md)
1724                 DoTemplate(HKEY("edit_markdown_epic"), NULL, &NoCtx);
1725         else
1726                 DoTemplate(HKEY("edit_message"), NULL, &NoCtx);
1727         end_burst();
1728
1729         return;
1730 }
1731
1732 /*
1733  * delete a message
1734  */
1735 void delete_msg(void)
1736 {
1737         long msgid;
1738         StrBuf *Line;
1739
1740         msgid = lbstr("msgid");
1741         Line = NewStrBuf();
1742         if ((WC->CurRoom.RAFlags & UA_ISTRASH) != 0) {  /* Delete from Trash is a real delete */
1743                 serv_printf("DELE %ld", msgid);
1744         }
1745         else {                  /* Otherwise move it to Trash */
1746                 serv_printf("MOVE %ld|_TRASH_|0", msgid);
1747         }
1748
1749         StrBuf_ServGetln(Line);
1750         GetServerStatusMsg(Line, NULL, 1, 0);
1751
1752         fixview();
1753
1754         readloop(readnew, eUseDefault);
1755 }
1756
1757
1758 /*
1759  * move a message to another room
1760  */
1761 void move_msg(void)
1762 {
1763         long msgid;
1764
1765         msgid = lbstr("msgid");
1766
1767         if (havebstr("move_button")) {
1768                 StrBuf *Line;
1769                 serv_printf("MOVE %ld|%s", msgid, bstr("target_room"));
1770                 Line = NewStrBuf();
1771                 StrBuf_ServGetln(Line);
1772                 GetServerStatusMsg(Line, NULL, 1, 0);
1773                 FreeStrBuf(&Line);
1774         } else {
1775                 AppendImportantMessage(_("The message was not moved."), -1);
1776         }
1777
1778         fixview();
1779         readloop(readnew, eUseDefault);
1780 }
1781
1782
1783
1784 /*
1785  * Generic function to output an arbitrary MIME attachment from
1786  * message being composed
1787  *
1788  * partnum              The MIME part to be output
1789  * filename             Fake filename to give
1790  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1791  */
1792 void postpart(StrBuf *partnum, StrBuf *filename, int force_download)
1793 {
1794         void *vPart;
1795         StrBuf *content_type;
1796         wc_mime_attachment *part;
1797         int i;
1798
1799         i = StrToi(partnum);
1800         if (GetHash(WC->attachments, IKEY(i), &vPart) &&
1801             (vPart != NULL)) {
1802                 part = (wc_mime_attachment*) vPart;
1803                 if (force_download) {
1804                         content_type = NewStrBufPlain(HKEY("application/octet-stream"));
1805                 }
1806                 else {
1807                         content_type = NewStrBufDup(part->ContentType);
1808                 }
1809                 StrBufAppendBuf(WC->WBuf, part->Data, 0);
1810                 http_transmit_thing(ChrPtr(content_type), 0);
1811         } else {
1812                 hprintf("HTTP/1.1 404 %s\n", ChrPtr(partnum));
1813                 output_headers(0, 0, 0, 0, 0, 0);
1814                 hprintf("Content-Type: text/plain\r\n");
1815                 begin_burst();
1816                 wc_printf(_("An error occurred while retrieving this part: %s/%s\n"),
1817                         ChrPtr(partnum), ChrPtr(filename));
1818                 end_burst();
1819         }
1820         FreeStrBuf(&content_type);
1821 }
1822
1823
1824 /*
1825  * Generic function to output an arbitrary MIME part from an arbitrary
1826  * message number on the server.
1827  *
1828  * msgnum               Number of the item on the citadel server
1829  * partnum              The MIME part to be output
1830  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1831  */
1832 void mimepart(int force_download)
1833 {
1834         int detect_mime = 0;
1835         long msgnum;
1836         long ErrorDetail;
1837         StrBuf *att;
1838         wcsession *WCC = WC;
1839         StrBuf *Buf;
1840         off_t bytes;
1841         StrBuf *ContentType = NewStrBufPlain(HKEY("application/octet-stream"));
1842         const char *CT;
1843
1844         att = Buf = NewStrBuf();
1845         msgnum = StrBufExtract_long(WCC->Hdr->HR.ReqLine, 0, '/');
1846         StrBufExtract_token(att, WCC->Hdr->HR.ReqLine, 1, '/');
1847
1848         serv_printf("OPNA %ld|%s", msgnum, ChrPtr(att));
1849         StrBuf_ServGetln(Buf);
1850         if (GetServerStatus(Buf, &ErrorDetail) == 2) {
1851                 StrBufCutLeft(Buf, 4);
1852                 bytes = StrBufExtract_long(Buf, 0, '|');
1853                 StrBufExtract_token(ContentType, Buf, 3, '|');
1854                 CheckGZipCompressionAllowed (SKEY(ContentType));
1855                 if (force_download)
1856                 {
1857                         FlushStrBuf(ContentType);
1858                         detect_mime = 0;
1859                 }
1860                 else
1861                 {
1862                         if (!strcasecmp(ChrPtr(ContentType), "application/octet-stream"))
1863                         {
1864                                 StrBufExtract_token(Buf, WCC->Hdr->HR.ReqLine, 2, '/');
1865                                 CT = GuessMimeByFilename(SKEY(Buf));
1866                                 StrBufPlain(ContentType, CT, -1);
1867                         }
1868                         if (!strcasecmp(ChrPtr(ContentType), "application/octet-stream"))
1869                         {
1870                                 detect_mime = 1;
1871                         }
1872                 }
1873                 serv_read_binary_to_http(ContentType, bytes, 0, detect_mime);
1874
1875                 serv_read_binary(WCC->WBuf, bytes, Buf);
1876                 serv_puts("CLOS");
1877                 StrBuf_ServGetln(Buf);
1878                 CT = ChrPtr(ContentType);
1879         } else {
1880                 StrBufCutLeft(Buf, 4);
1881                 switch (ErrorDetail) {
1882                 default:
1883                 case ERROR + MESSAGE_NOT_FOUND:
1884                         hprintf("HTTP/1.1 404 %s\n", ChrPtr(Buf));
1885                         break;
1886                 case ERROR + NOT_LOGGED_IN:
1887                         hprintf("HTTP/1.1 401 %s\n", ChrPtr(Buf));
1888                         break;
1889
1890                 case ERROR + HIGHER_ACCESS_REQUIRED:
1891                         hprintf("HTTP/1.1 403 %s\n", ChrPtr(Buf));
1892                         break;
1893                 case ERROR + INTERNAL_ERROR:
1894                 case ERROR + TOO_BIG:
1895                         hprintf("HTTP/1.1 500 %s\n", ChrPtr(Buf));
1896                         break;
1897                 }
1898
1899                 hprintf("Pragma: no-cache\r\n"
1900                         "Cache-Control: no-store\r\n"
1901                         "Expires: -1\r\n"
1902                 );
1903
1904                 hprintf("Content-Type: text/plain\r\n");
1905                 begin_burst();
1906                 wc_printf(_("An error occurred while retrieving this part: %s\n"),
1907                         ChrPtr(Buf));
1908                 end_burst();
1909         }
1910         FreeStrBuf(&ContentType);
1911         FreeStrBuf(&Buf);
1912 }
1913
1914
1915 /*
1916  * Read any MIME part of a message, from the server, into memory.
1917  */
1918 StrBuf *load_mimepart(long msgnum, char *partnum)
1919 {
1920         off_t bytes;
1921         StrBuf *Buf;
1922
1923         Buf = NewStrBuf();
1924         serv_printf("DLAT %ld|%s", msgnum, partnum);
1925         StrBuf_ServGetln(Buf);
1926         if (GetServerStatus(Buf, NULL) == 6) {
1927                 StrBufCutLeft(Buf, 4);
1928                 bytes = StrBufExtract_long(Buf, 0, '|');
1929                 FreeStrBuf(&Buf);
1930                 Buf = NewStrBuf();
1931                 StrBuf_ServGetBLOBBuffered(Buf, bytes);
1932                 return(Buf);
1933         }
1934         else {
1935                 FreeStrBuf(&Buf);
1936                 return(NULL);
1937         }
1938 }
1939
1940 /*
1941  * Read any MIME part of a message, from the server, into memory.
1942  */
1943 void MimeLoadData(wc_mime_attachment *Mime)
1944 {
1945         StrBuf *Buf;
1946         const char *Ptr;
1947         off_t bytes;
1948         /* TODO: is there a chance the content type is different from the one we know? */
1949
1950         serv_printf("DLAT %ld|%s", Mime->msgnum, ChrPtr(Mime->PartNum));
1951         Buf = NewStrBuf();
1952         StrBuf_ServGetln(Buf);
1953         if (GetServerStatus(Buf, NULL) == 6) {
1954                 Ptr = &(ChrPtr(Buf)[4]);
1955                 bytes = StrBufExtractNext_long(Buf, &Ptr, '|');
1956                 StrBufSkip_NTokenS(Buf, &Ptr, '|', 3);  /* filename, cbtype, mimetype */
1957                 if (Mime->Charset == NULL) Mime->Charset = NewStrBuf();
1958                 StrBufExtract_NextToken(Mime->Charset, Buf, &Ptr, '|');
1959
1960                 if (Mime->Data == NULL)
1961                         Mime->Data = NewStrBufPlain(NULL, bytes);
1962                 StrBuf_ServGetBLOBBuffered(Mime->Data, bytes);
1963         }
1964         else {
1965                 FlushStrBuf(Mime->Data);
1966                 /* TODO XImportant message */
1967         }
1968         FreeStrBuf(&Buf);
1969 }
1970
1971
1972 void view_mimepart(void) {
1973         mimepart(0);
1974 }
1975
1976 void download_mimepart(void) {
1977         mimepart(1);
1978 }
1979
1980 void view_postpart(void) {
1981         StrBuf *filename = NewStrBuf();
1982         StrBuf *partnum = NewStrBuf();
1983
1984         StrBufExtract_token(partnum, WC->Hdr->HR.ReqLine, 0, '/');
1985         StrBufExtract_token(filename, WC->Hdr->HR.ReqLine, 1, '/');
1986
1987         postpart(partnum, filename, 0);
1988
1989         FreeStrBuf(&filename);
1990         FreeStrBuf(&partnum);
1991 }
1992
1993 void download_postpart(void) {
1994         StrBuf *filename = NewStrBuf();
1995         StrBuf *partnum = NewStrBuf();
1996
1997         StrBufExtract_token(partnum, WC->Hdr->HR.ReqLine, 0, '/');
1998         StrBufExtract_token(filename, WC->Hdr->HR.ReqLine, 1, '/');
1999
2000         postpart(partnum, filename, 1);
2001
2002         FreeStrBuf(&filename);
2003         FreeStrBuf(&partnum);
2004 }
2005
2006
2007
2008 void show_num_attachments(void) {
2009         wc_printf("%d", GetCount(WC->attachments));
2010 }
2011
2012
2013 void h_readnew(void) { readloop(readnew, eUseDefault);}
2014 void h_readold(void) { readloop(readold, eUseDefault);}
2015 void h_readfwd(void) { readloop(readfwd, eUseDefault);}
2016 void h_headers(void) { readloop(headers, eUseDefault);}
2017 void h_do_search(void) { readloop(do_search, eUseDefault);}
2018 void h_readgt(void) { readloop(readgt, eUseDefault);}
2019 void h_readlt(void) { readloop(readlt, eUseDefault);}
2020
2021
2022
2023 /* Output message list in JSON format */
2024 void jsonMessageList(void) {
2025         StrBuf *View = NewStrBuf();
2026         const StrBuf *room = sbstr("room");
2027         long oper = (havebstr("query")) ? do_search : readnew;
2028         StrBufPrintf(View, "%d", VIEW_JSON_LIST);
2029         putbstr("view", View);;
2030         gotoroom(room);
2031         readloop(oper, eUseDefault);
2032 }
2033
2034 void FreeReadLoopHandlerSet(void *v) {
2035         RoomRenderer *Handler = (RoomRenderer *) v;
2036         FreeStrBuf(&Handler->FetchMessageList);
2037         if (Handler->MessageFieldList != NULL) {
2038                 free(Handler->MessageFieldList);
2039         }
2040         free(Handler);
2041 }
2042
2043 void RegisterReadLoopHandlerset(
2044         int RoomType,
2045         GetParamsGetServerCall_func GetParamsGetServerCall,
2046         PrintViewHeader_func PrintPageHeader,
2047         PrintViewHeader_func PrintViewHeader,
2048         load_msg_ptrs_detailheaders LH,
2049         LoadMsgFromServer_func LoadMsgFromServer,
2050         RenderView_or_Tail_func RenderView_or_Tail,
2051         View_Cleanup_func ViewCleanup,
2052         const char **browseListFields
2053         )
2054 {
2055         long count = 0;
2056         long i = 0;
2057         RoomRenderer *Handler;
2058
2059         Handler = (RoomRenderer*) malloc(sizeof(RoomRenderer));
2060
2061         Handler->RoomType = RoomType;
2062         Handler->GetParamsGetServerCall = GetParamsGetServerCall;
2063         Handler->PrintPageHeader = PrintPageHeader;
2064         Handler->PrintViewHeader = PrintViewHeader;
2065         Handler->LoadMsgFromServer = LoadMsgFromServer;
2066         Handler->RenderView_or_Tail = RenderView_or_Tail;
2067         Handler->ViewCleanup = ViewCleanup;
2068         Handler->LHParse = LH;
2069
2070         if (browseListFields != NULL) {
2071                 while (browseListFields[count] != NULL) {
2072                         count ++;
2073                 }
2074                 Handler->HeaderCount = count;
2075                 Handler->MessageFieldList = (eMessageField*) malloc(sizeof(eMessageField) * count);
2076                 Handler->FetchMessageList = NewStrBufPlain(NULL, 5 * count + 4 + 5);
2077                 StrBufPlain(Handler->FetchMessageList, HKEY("time\n"));
2078                 for (i = 0; i < count; i++) {
2079                         if (!GetFieldFromMnemonic(&Handler->MessageFieldList[i], browseListFields[i])) {
2080                                 fprintf(stderr, "Unknown message header: %s\n", browseListFields[i]);
2081                                 exit(1);
2082                         }
2083                         StrBufAppendBufPlain(Handler->FetchMessageList, browseListFields[i], 4, 0);
2084                         StrBufAppendBufPlain(Handler->FetchMessageList, HKEY("\n"), 0);
2085                 }
2086                 StrBufAppendBufPlain(Handler->FetchMessageList, HKEY("000"), 0);
2087         }
2088         else {
2089                 Handler->FetchMessageList = NULL;
2090                 Handler->MessageFieldList = NULL;
2091         }
2092
2093         Put(ReadLoopHandler, IKEY(RoomType), Handler, FreeReadLoopHandlerSet);
2094 }
2095
2096 void
2097 InitModule_MSG
2098 (void)
2099 {
2100         RegisterPreference("use_sig",
2101                            _("Attach signature to email messages?"),
2102                            PRF_YESNO,
2103                            NULL);
2104         RegisterPreference("signature", _("Use this signature:"), PRF_QP_STRING, NULL);
2105         RegisterPreference("default_header_charset",
2106                            _("Default character set for email headers:"),
2107                            PRF_STRING,
2108                            NULL);
2109         RegisterPreference("defaultfrom", _("Preferred email address"), PRF_STRING, NULL);
2110         RegisterPreference("defaultname",
2111                            _("Preferred display name for email messages"),
2112                            PRF_STRING,
2113                            NULL);
2114         RegisterPreference("defaulthandle",
2115                            _("Preferred display name for bulletin board posts"),
2116                            PRF_STRING,
2117                            NULL);
2118         RegisterPreference("mailbox",_("Mailbox view mode"), PRF_STRING, NULL);
2119         RegisterPreference("markdown",_("Prefer markdown editing"), PRF_YESNO, NULL);
2120
2121
2122         WebcitAddUrlHandler(HKEY("readnew"), "", 0, h_readnew, ANONYMOUS|NEED_URL);
2123         WebcitAddUrlHandler(HKEY("readold"), "", 0, h_readold, ANONYMOUS|NEED_URL);
2124         WebcitAddUrlHandler(HKEY("readfwd"), "", 0, h_readfwd, ANONYMOUS|NEED_URL);
2125         WebcitAddUrlHandler(HKEY("headers"), "", 0, h_headers, NEED_URL);
2126         WebcitAddUrlHandler(HKEY("readgt"), "", 0, h_readgt, ANONYMOUS|NEED_URL);
2127         WebcitAddUrlHandler(HKEY("readlt"), "", 0, h_readlt, ANONYMOUS|NEED_URL);
2128         WebcitAddUrlHandler(HKEY("do_search"), "", 0, h_do_search, 0);
2129         WebcitAddUrlHandler(HKEY("display_enter"), "", 0, display_enter, 0);
2130         WebcitAddUrlHandler(HKEY("post"), "", 0, post_message, PROHIBIT_STARTPAGE);
2131         WebcitAddUrlHandler(HKEY("move_msg"), "", 0, move_msg, PROHIBIT_STARTPAGE);
2132         WebcitAddUrlHandler(HKEY("delete_msg"), "", 0, delete_msg, PROHIBIT_STARTPAGE);
2133         WebcitAddUrlHandler(HKEY("msg"), "", 0, embed_message, NEED_URL);
2134         WebcitAddUrlHandler(HKEY("message"), "", 0, handle_one_message, NEED_URL|XHTTP_COMMANDS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
2135         WebcitAddUrlHandler(HKEY("printmsg"), "", 0, print_message, NEED_URL);
2136         WebcitAddUrlHandler(HKEY("msgheaders"), "", 0, display_headers, NEED_URL);
2137
2138         WebcitAddUrlHandler(HKEY("mimepart"), "", 0, view_mimepart, NEED_URL);
2139         WebcitAddUrlHandler(HKEY("mimepart_download"), "", 0, download_mimepart, NEED_URL);
2140         WebcitAddUrlHandler(HKEY("postpart"), "", 0, view_postpart, NEED_URL|PROHIBIT_STARTPAGE);
2141         WebcitAddUrlHandler(HKEY("postpart_download"), "", 0, download_postpart, NEED_URL|PROHIBIT_STARTPAGE);
2142         WebcitAddUrlHandler(HKEY("upload_attachment"), "", 0, upload_attachment, AJAX);
2143         WebcitAddUrlHandler(HKEY("remove_attachment"), "", 0, remove_attachment, AJAX);
2144         WebcitAddUrlHandler(HKEY("show_num_attachments"), "", 0, show_num_attachments, AJAX);
2145
2146         /* json */
2147         WebcitAddUrlHandler(HKEY("roommsgs"), "", 0, jsonMessageList,0);
2148 }
2149
2150 void
2151 SessionDetachModule_MSG
2152 (wcsession *sess)
2153 {
2154         DeleteHash(&sess->summ);
2155 }