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 *MsgHeaderHandler = NULL;
  21 HashList *MsgEvaluators = NULL;
  22 HashList *MimeRenderHandler = NULL;
  23 HashList *ReadLoopHandler = NULL;
  24 int dbg_analyze_msg = 0;
  25
  26 #define SUBJ_COL_WIDTH_PCT              50      /* Mailbox view column width */
  27 #define SENDER_COL_WIDTH_PCT            30      /* Mailbox view column width */
  28 #define DATE_PLUS_BUTTONS_WIDTH_PCT     20      /* Mailbox view column width */
  29
  30 void jsonMessageListHdr(void);
  31
  32 void display_enter(void);
  33
  34 typedef void (*MsgPartEvaluatorFunc)(message_summary *Sum, StrBuf *Buf);
  35
  36 typedef struct _MsgPartEvaluatorStruct {
  37         MsgPartEvaluatorFunc f;
  38 } MsgPartEvaluatorStruct;
  39
  40 void fixview()
  41 {
  42         /* workaround for json listview; its not useable directly */
  43         if (WC->CurRoom.view == VIEW_JSON_LIST) {
  44                 StrBuf *View = NewStrBuf();
  45                 StrBufPrintf(View, "%d", VIEW_MAILBOX);
  46                 putbstr("view", View);;
  47         }
  48 }
  49 int load_message(message_summary *Msg,
  50                  StrBuf *FoundCharset,
  51                  StrBuf **Error)
  52 {
  53         StrBuf *Buf;
  54         StrBuf *HdrToken;
  55         headereval *Hdr;
  56         void *vHdr;
  57         char buf[SIZ];
  58         int Done = 0;
  59         int state=0;
  60
  61         Buf = NewStrBuf();
  62         if (Msg->PartNum != NULL) {
  63                 serv_printf("MSG4 %ld|%s", Msg->msgnum, ChrPtr(Msg->PartNum));
  64         }
  65         else {
  66                 serv_printf("MSG4 %ld", Msg->msgnum);
  67         }
  68
  69         StrBuf_ServGetln(Buf);
  70         if (GetServerStatus(Buf, NULL) != 1) {
  71                 *Error = NewStrBuf();
  72                 StrBufAppendPrintf(*Error, "<strong>");
  73                 StrBufAppendPrintf(*Error, _("ERROR:"));
  74                 StrBufAppendPrintf(*Error, "</strong> %s<br>\n", &buf[4]);
  75                 FreeStrBuf(&Buf);
  76                 return 0;
  77         }
  78
  79         /* begin everythingamundo table */
  80         HdrToken = NewStrBuf();
  81         while (!Done && StrBuf_ServGetln(Buf)>=0) {
  82                 if ( (StrLength(Buf)==3) &&
  83                     !strcmp(ChrPtr(Buf), "000"))
  84                 {
  85                         Done = 1;
  86                         if (state < 2) {
  87                                 if (Msg->MsgBody->Data == NULL)
  88                                         Msg->MsgBody->Data = NewStrBuf();
  89                                 Msg->MsgBody->ContentType = NewStrBufPlain(HKEY("text/html"));
  90                                 StrBufAppendPrintf(Msg->MsgBody->Data, "<div><i>");
  91                                 StrBufAppendPrintf(Msg->MsgBody->Data, _("Empty message"));
  92                                 StrBufAppendPrintf(Msg->MsgBody->Data, "</i><br><br>\n");
  93                                 StrBufAppendPrintf(Msg->MsgBody->Data, "</div>\n");
  94                         }
  95                         break;
  96                 }
  97                 switch (state) {
  98                 case 0:/* Citadel Message Headers */
  99                         if (StrLength(Buf) == 0) {
 100                                 state ++;
 101                                 break;
 102                         }
 103                         StrBufExtract_token(HdrToken, Buf, 0, '=');
 104                         StrBufCutLeft(Buf, StrLength(HdrToken) + 1);
 105
 106                         /* look up one of the examine_* functions to parse the content */
 107                         if (GetHash(MsgHeaderHandler, SKEY(HdrToken), &vHdr) &&
 108                             (vHdr != NULL)) {
 109                                 Hdr = (headereval*)vHdr;
 110                                 Hdr->evaluator(Msg, Buf, FoundCharset);
 111                                 if (Hdr->Type == 1) {
 112                                         state++;
 113                                 }
 114                         }/* TODO:
 115                         else LogError(Target,
 116                                       __FUNCTION__,
 117                                       "don't know how to handle message header[%s]\n",
 118                                       ChrPtr(HdrToken));
 119                          */
 120                         break;
 121                 case 1:/* Message Mime Header */
 122                         if (StrLength(Buf) == 0) {
 123                                 state++;
 124                                 if (Msg->MsgBody->ContentType == NULL)
 125                                         /* end of header or no header? */
 126                                         Msg->MsgBody->ContentType = NewStrBufPlain(HKEY("text/plain"));
 127                                  /* usual end of mime header */
 128                         }
 129                         else
 130                         {
 131                                 StrBufExtract_token(HdrToken, Buf, 0, ':');
 132                                 if (StrLength(HdrToken) > 0) {
 133                                         StrBufCutLeft(Buf, StrLength(HdrToken) + 1);
 134                                         /* the examine*'s know how to do with mime headers too... */
 135                                         if (GetHash(MsgHeaderHandler, SKEY(HdrToken), &vHdr) &&
 136                                             (vHdr != NULL)) {
 137                                                 Hdr = (headereval*)vHdr;
 138                                                 Hdr->evaluator(Msg, Buf, FoundCharset);
 139                                         }
 140                                         break;
 141                                 }
 142                         }
 143                 case 2: /* Message Body */
 144
 145                         if (Msg->MsgBody->size_known > 0) {
 146                                 StrBuf_ServGetBLOBBuffered(Msg->MsgBody->Data, Msg->MsgBody->length);
 147                                 state ++;
 148                                 /*/ todo: check next line, if not 000, append following lines */
 149                         }
 150                         else if (1){
 151                                 if (StrLength(Msg->MsgBody->Data) > 0)
 152                                         StrBufAppendBufPlain(Msg->MsgBody->Data, "\n", 1, 0);
 153                                 StrBufAppendBuf(Msg->MsgBody->Data, Buf, 0);
 154                         }
 155                         break;
 156                 case 3:
 157                         StrBufAppendBuf(Msg->MsgBody->Data, Buf, 0);
 158                         break;
 159                 }
 160         }
 161
 162         if (Msg->AllAttach == NULL)
 163                 Msg->AllAttach = NewHash(1,NULL);
 164         /* now we put the body mimepart we read above into the mimelist */
 165         Put(Msg->AllAttach, SKEY(Msg->MsgBody->PartNum), Msg->MsgBody, DestroyMime);
 166
 167         FreeStrBuf(&Buf);
 168         FreeStrBuf(&HdrToken);
 169         return 1;
 170 }
 171
 172
 173
 174 /*
 175  * I wanna SEE that message!
 176  *
 177  * msgnum               Message number to display
 178  * printable_view       Nonzero to display a printable view
 179  * section              Optional for encapsulated message/rfc822 submessage
 180  */
 181 int read_message(StrBuf *Target, const char *tmpl, long tmpllen, long msgnum, const StrBuf *PartNum, const StrBuf **OutMime)
 182 {
 183         StrBuf *Buf;
 184         StrBuf *FoundCharset;
 185         HashPos  *it;
 186         void *vMime;
 187         message_summary *Msg = NULL;
 188         void *vHdr;
 189         long len;
 190         const char *Key;
 191         WCTemplputParams SuperTP;
 192         WCTemplputParams SubTP;
 193         StrBuf *Error = NULL;
 194
 195         memset(&SuperTP, 0, sizeof(WCTemplputParams));
 196         memset(&SubTP, 0, sizeof(WCTemplputParams));
 197
 198         Buf = NewStrBuf();
 199         FoundCharset = NewStrBuf();
 200         Msg = (message_summary *)malloc(sizeof(message_summary));
 201         memset(Msg, 0, sizeof(message_summary));
 202         Msg->msgnum = msgnum;
 203         Msg->PartNum = PartNum;
 204         Msg->MsgBody =  (wc_mime_attachment*) malloc(sizeof(wc_mime_attachment));
 205         memset(Msg->MsgBody, 0, sizeof(wc_mime_attachment));
 206         Msg->MsgBody->msgnum = msgnum;
 207
 208         if (!load_message(Msg, FoundCharset, &Error)) {
 209                 StrBufAppendBuf(Target, Error, 0);
 210                 FreeStrBuf(&Error);
 211         }
 212
 213         /* Extract just the content-type (omit attributes such as "charset") */
 214         StrBufExtract_token(Buf, Msg->MsgBody->ContentType, 0, ';');
 215         StrBufTrim(Buf);
 216         StrBufLowerCase(Buf);
 217
 218         StackContext(NULL, &SuperTP, Msg, CTX_MAILSUM, 0, NULL);
 219         {
 220                 /* Locate a renderer capable of converting this MIME part into HTML */
 221                 if (GetHash(MimeRenderHandler, SKEY(Buf), &vHdr) &&
 222                     (vHdr != NULL)) {
 223                         RenderMimeFuncStruct *Render;
 224
 225                         StackContext(&SuperTP, &SubTP, Msg->MsgBody, CTX_MIME_ATACH, 0, NULL);
 226                         {
 227                                 Render = (RenderMimeFuncStruct*)vHdr;
 228                                 Render->f(Target, &SubTP, FoundCharset);
 229                         }
 230                         UnStackContext(&SubTP);
 231                 }
 232
 233                 if (StrLength(Msg->reply_references)> 0) {
 234                         /* Trim down excessively long lists of thread references.  We eliminate the
 235                          * second one in the list so that the thread root remains intact.
 236                          */
 237                         int rrtok = num_tokens(ChrPtr(Msg->reply_references), '|');
 238                         int rrlen = StrLength(Msg->reply_references);
 239                         if ( ((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10) ) {
 240                                 StrBufRemove_token(Msg->reply_references, 1, '|');
 241                         }
 242                 }
 243
 244                 /* now check if we need to translate some mimeparts, and remove the duplicate */
 245                 it = GetNewHashPos(Msg->AllAttach, 0);
 246                 while (GetNextHashPos(Msg->AllAttach, it, &len, &Key, &vMime) &&
 247                        (vMime != NULL)) {
 248                         StackContext(&SuperTP, &SubTP, vMime, CTX_MIME_ATACH, 0, NULL);
 249                         {
 250                                 evaluate_mime_part(Target, &SubTP);
 251                         }
 252                         UnStackContext(&SubTP);
 253                 }
 254                 DeleteHashPos(&it);
 255                 *OutMime = DoTemplate(tmpl, tmpllen, Target, &SuperTP);
 256         }
 257         UnStackContext(&SuperTP);
 258
 259         DestroyMessageSummary(Msg);
 260         FreeStrBuf(&FoundCharset);
 261         FreeStrBuf(&Buf);
 262         return 1;
 263 }
 264
 265
 266 long
 267 HttpStatus(long CitadelStatus)
 268 {
 269         long httpstatus = 502;
 270
 271         switch (MAJORCODE(CitadelStatus))
 272         {
 273         case LISTING_FOLLOWS:
 274         case CIT_OK:
 275                 httpstatus = 201;
 276                 break;
 277         case ERROR:
 278                 switch (MINORCODE(CitadelStatus))
 279                 {
 280                 case INTERNAL_ERROR:
 281                         httpstatus = 403;
 282                         break;
 283
 284                 case TOO_BIG:
 285                 case ILLEGAL_VALUE:
 286                 case HIGHER_ACCESS_REQUIRED:
 287                 case MAX_SESSIONS_EXCEEDED:
 288                 case RESOURCE_BUSY:
 289                 case RESOURCE_NOT_OPEN:
 290                 case NOT_HERE:
 291                 case INVALID_FLOOR_OPERATION:
 292                 case FILE_NOT_FOUND:
 293                 case ROOM_NOT_FOUND:
 294                         httpstatus = 409;
 295                         break;
 296
 297                 case MESSAGE_NOT_FOUND:
 298                 case ALREADY_EXISTS:
 299                         httpstatus = 403;
 300                         break;
 301
 302                 case NO_SUCH_SYSTEM:
 303                         httpstatus = 502;
 304                         break;
 305
 306                 default:
 307                 case CMD_NOT_SUPPORTED:
 308                 case PASSWORD_REQUIRED:
 309                 case ALREADY_LOGGED_IN:
 310                 case USERNAME_REQUIRED:
 311                 case NOT_LOGGED_IN:
 312                 case SERVER_SHUTTING_DOWN:
 313                 case NO_SUCH_USER:
 314                 case ASYNC_GEXP:
 315                         httpstatus = 502;
 316                         break;
 317                 }
 318                 break;
 319
 320         default:
 321         case BINARY_FOLLOWS:
 322         case SEND_BINARY:
 323         case START_CHAT_MODE:
 324         case ASYNC_MSG:
 325         case MORE_DATA:
 326         case SEND_LISTING:
 327                 httpstatus = 502; /* aeh... whut? */
 328                 break;
 329         }
 330
 331         return httpstatus;
 332 }
 333
 334 /*
 335  * Unadorned HTML output of an individual message, suitable
 336  * for placing in a hidden iframe, for printing, or whatever
 337  */
 338 void handle_one_message(void)
 339 {
 340         long CitStatus = ERROR + NOT_HERE;
 341         int CopyMessage = 0;
 342         const StrBuf *Destination;
 343         void *vLine;
 344         const StrBuf *Mime;
 345         long msgnum = 0L;
 346         wcsession *WCC = WC;
 347         const StrBuf *Tmpl;
 348         StrBuf *CmdBuf = NULL;
 349         const char *pMsg;
 350
 351
 352         pMsg = strchr(ChrPtr(WCC->Hdr->HR.ReqLine), '/');
 353         if (pMsg == NULL) {
 354                 HttpStatus(CitStatus);
 355                 return;
 356         }
 357
 358         msgnum = atol(pMsg + 1);
 359         StrBufCutAt(WCC->Hdr->HR.ReqLine, 0, pMsg);
 360         gotoroom(WCC->Hdr->HR.ReqLine);
 361         switch (WCC->Hdr->HR.eReqType)
 362         {
 363         case eGET:
 364         case ePOST:
 365                 Tmpl = sbstr("template");
 366                 if (StrLength(Tmpl) > 0)
 367                         read_message(WCC->WBuf, SKEY(Tmpl), msgnum, NULL, &Mime);
 368                 else
 369                         read_message(WCC->WBuf, HKEY("view_message"), msgnum, NULL, &Mime);
 370                 http_transmit_thing(ChrPtr(Mime), 0);
 371                 break;
 372         case eDELETE:
 373                 CmdBuf = NewStrBuf ();
 374                 if ((WCC->CurRoom.RAFlags & UA_ISTRASH) != 0) { /* Delete from Trash is a real delete */
 375                         serv_printf("DELE %ld", msgnum);
 376                 }
 377                 else {                  /* Otherwise move it to Trash */
 378                         serv_printf("MOVE %ld|_TRASH_|0", msgnum);
 379                 }
 380                 StrBuf_ServGetln(CmdBuf);
 381                 GetServerStatusMsg(CmdBuf, &CitStatus, 1, 0);
 382                 HttpStatus(CitStatus);
 383                 break;
 384         case eCOPY:
 385                 CopyMessage = 1;
 386         case eMOVE:
 387                 if (GetHash(WCC->Hdr->HTTPHeaders, HKEY("DESTINATION"), &vLine) &&
 388                     (vLine!=NULL)) {
 389                         Destination = (StrBuf*) vLine;
 390                         serv_printf("MOVE %ld|%s|%d", msgnum, ChrPtr(Destination), CopyMessage);
 391                         StrBuf_ServGetln(CmdBuf);
 392                         GetServerStatusMsg(CmdBuf, NULL, 1, 0);
 393                         GetServerStatus(CmdBuf, &CitStatus);
 394                         HttpStatus(CitStatus);
 395                 }
 396                 else
 397                         HttpStatus(500);
 398                 break;
 399         default:
 400                 break;
 401
 402         }
 403 }
 404
 405
 406 /*
 407  * Unadorned HTML output of an individual message, suitable
 408  * for placing in a hidden iframe, for printing, or whatever
 409  */
 410 void embed_message(void) {
 411         const StrBuf *Mime;
 412         long msgnum = 0L;
 413         wcsession *WCC = WC;
 414         const StrBuf *Tmpl;
 415         StrBuf *CmdBuf = NULL;
 416
 417         msgnum = StrBufExtract_long(WCC->Hdr->HR.ReqLine, 0, '/');
 418         if (msgnum <= 0) return;
 419
 420         switch (WCC->Hdr->HR.eReqType)
 421         {
 422         case eGET:
 423         case ePOST:
 424                 Tmpl = sbstr("template");
 425                 if (StrLength(Tmpl) > 0)
 426                         read_message(WCC->WBuf, SKEY(Tmpl), msgnum, NULL, &Mime);
 427                 else
 428                         read_message(WCC->WBuf, HKEY("view_message"), msgnum, NULL, &Mime);
 429                 http_transmit_thing(ChrPtr(Mime), 0);
 430                 break;
 431         case eDELETE:
 432                 CmdBuf = NewStrBuf ();
 433                 if ((WCC->CurRoom.RAFlags & UA_ISTRASH) != 0) { /* Delete from Trash is a real delete */
 434                         serv_printf("DELE %ld", msgnum);
 435                 }
 436                 else {                  /* Otherwise move it to Trash */
 437                         serv_printf("MOVE %ld|_TRASH_|0", msgnum);
 438                 }
 439                 StrBuf_ServGetln(CmdBuf);
 440                 GetServerStatusMsg(CmdBuf, NULL, 1, 0);
 441                 break;
 442         default:
 443                 break;
 444
 445         }
 446 }
 447
 448
 449 /*
 450  * Printable view of a message
 451  */
 452 void print_message(void) {
 453         long msgnum = 0L;
 454         const StrBuf *Mime;
 455
 456         msgnum = StrBufExtract_long(WC->Hdr->HR.ReqLine, 0, '/');
 457         output_headers(0, 0, 0, 0, 0, 0);
 458
 459         hprintf("Content-type: text/html\r\n"
 460                 "Server: " PACKAGE_STRING "\r\n"
 461                 "Connection: close\r\n");
 462
 463         begin_burst();
 464
 465         read_message(WC->WBuf, HKEY("view_message_print"), msgnum, NULL, &Mime);
 466
 467         wDumpContent(0);
 468 }
 469
 470 /*
 471  * Display a message's headers
 472  */
 473 void display_headers(void) {
 474         long msgnum = 0L;
 475         char buf[1024];
 476
 477         msgnum = StrBufExtract_long(WC->Hdr->HR.ReqLine, 0, '/');
 478         output_headers(0, 0, 0, 0, 0, 0);
 479
 480         hprintf("Content-type: text/plain\r\n"
 481                 "Server: %s\r\n"
 482                 "Connection: close\r\n",
 483                 PACKAGE_STRING);
 484         begin_burst();
 485
 486         serv_printf("MSG2 %ld|3", msgnum);
 487         serv_getln(buf, sizeof buf);
 488         if (buf[0] == '1') {
 489                 while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 490                         wc_printf("%s\n", buf);
 491                 }
 492         }
 493
 494         wDumpContent(0);
 495 }
 496
 497
 498 message_summary *ReadOneMessageSummary(StrBuf *RawMessage, const char *DefaultSubject, long MsgNum)
 499 {
 500         void                 *vEval;
 501         MsgPartEvaluatorStruct  *Eval;
 502         message_summary      *Msg;
 503         StrBuf *Buf;
 504         const char *buf;
 505         const char *ebuf;
 506         int nBuf;
 507         long len;
 508
 509         Buf = NewStrBuf();
 510
 511         serv_printf("MSG0 %ld|1", MsgNum);      /* ask for headers only */
 512
 513         StrBuf_ServGetln(Buf);
 514         if (GetServerStatus(Buf, NULL) == 1) {
 515                 FreeStrBuf(&Buf);
 516                 return NULL;
 517         }
 518
 519         Msg = (message_summary*)malloc(sizeof(message_summary));
 520         memset(Msg, 0, sizeof(message_summary));
 521         while (len = StrBuf_ServGetln(Buf),
 522                (len >= 0) &&
 523                ((len != 3)  ||
 524                 strcmp(ChrPtr(Buf), "000")))
 525         {
 526                 buf = ChrPtr(Buf);
 527                 ebuf = strchr(ChrPtr(Buf), '=');
 528                 nBuf = ebuf - buf;
 529                 if (GetHash(MsgEvaluators, buf, nBuf, &vEval) && vEval != NULL) {
 530                         Eval = (MsgPartEvaluatorStruct*) vEval;
 531                         StrBufCutLeft(Buf, nBuf + 1);
 532                         Eval->f(Msg, Buf);
 533                 }
 534                 else syslog(LOG_INFO, "Don't know how to handle Message Headerline [%s]", ChrPtr(Buf));
 535         }
 536         return Msg;
 537 }
 538
 539
 540
 541
 542
 543 /*
 544  * load message pointers from the server for a "read messages" operation
 545  *
 546  * servcmd:             the citadel command to send to the citserver
 547  */
 548 int load_msg_ptrs(const char *servcmd,
 549                   const char *filter,
 550                   SharedMessageStatus *Stat,
 551                   load_msg_ptrs_detailheaders LH)
 552 {
 553         wcsession *WCC = WC;
 554         message_summary *Msg;
 555         StrBuf *Buf, *Buf2;
 556         long len;
 557         int n;
 558         int skipit;
 559         const char *Ptr = NULL;
 560         int StatMajor;
 561
 562         Stat->lowest_found = LONG_MAX;
 563         Stat->highest_found = LONG_MIN;
 564
 565         if (WCC->summ != NULL) {
 566                 DeleteHash(&WCC->summ);
 567         }
 568         WCC->summ = NewHash(1, Flathash);
 569
 570         Buf = NewStrBuf();
 571         serv_puts(servcmd);
 572         StrBuf_ServGetln(Buf);
 573         StatMajor = GetServerStatus(Buf, NULL);
 574         switch (StatMajor) {
 575         case 1:
 576                 break;
 577         case 8:
 578                 if (filter != NULL) {
 579                         serv_puts(filter);
 580                         serv_puts("000");
 581                         break;
 582                 }
 583                 /* fall back to empty filter in case of we were fooled... */
 584                 serv_puts("");
 585                 serv_puts("000");
 586                 break;
 587         default:
 588                 FreeStrBuf(&Buf);
 589                 return (Stat->nummsgs);
 590         }
 591         Buf2 = NewStrBuf();
 592         while (len = StrBuf_ServGetln(Buf),
 593                ((len >= 0) &&
 594                 ((len != 3) ||
 595                  strcmp(ChrPtr(Buf), "000")!= 0)))
 596         {
 597                 if (Stat->nummsgs < Stat->maxload) {
 598                         skipit = 0;
 599                         Ptr = NULL;
 600                         Msg = (message_summary*)malloc(sizeof(message_summary));
 601                         memset(Msg, 0, sizeof(message_summary));
 602
 603                         Msg->msgnum = StrBufExtractNext_long(Buf, &Ptr, '|');
 604                         Msg->date = StrBufExtractNext_long(Buf, &Ptr, '|');
 605
 606                         if (Stat->nummsgs == 0) {
 607                                 if (Msg->msgnum < Stat->lowest_found) {
 608                                         Stat->lowest_found = Msg->msgnum;
 609                                 }
 610                                 if (Msg->msgnum > Stat->highest_found) {
 611                                         Stat->highest_found = Msg->msgnum;
 612                                 }
 613                         }
 614
 615                         if ((Msg->msgnum == 0) && (StrLength(Buf) < 32)) {
 616                                 free(Msg);
 617                                 continue;
 618                         }
 619
 620                         /*
 621                          * as citserver probably gives us messages in forward date sorting
 622                          * nummsgs should be the same order as the message date.
 623                          */
 624                         if (Msg->date == 0) {
 625                                 Msg->date = Stat->nummsgs;
 626                                 if (StrLength(Buf) < 32)
 627                                         skipit = 1;
 628                         }
 629                         if ((!skipit) && (LH != NULL)) {
 630                                 if (!LH(Buf, &Ptr, Msg, Buf2)){
 631                                         free(Msg);
 632                                         continue;
 633                                 }
 634                         }
 635                         n = Msg->msgnum;
 636                         Put(WCC->summ, (const char *)&n, sizeof(n), Msg, DestroyMessageSummary);
 637                 }
 638                 Stat->nummsgs++;
 639         }
 640         FreeStrBuf(&Buf2);
 641         FreeStrBuf(&Buf);
 642         return (Stat->nummsgs);
 643 }
 644
 645
 646
 647 /**
 648  * \brief sets FlagToSet for each of ScanMe that appears in MatchMSet
 649  * \param ScanMe List of BasicMsgStruct to be searched it MatchSet
 650  * \param MatchMSet MSet we want to flag
 651  * \param FlagToSet Flag to set on each BasicMsgStruct->Flags if in MSet
 652  */
 653 void SetFlagsFromMSet(HashList *ScanMe, MSet *MatchMSet, int FlagToSet, int Reverse)
 654 {
 655         const char *HashKey;
 656         long HKLen;
 657         HashPos *at;
 658         void *vMsg;
 659         message_summary *Msg;
 660
 661         at = GetNewHashPos(ScanMe, 0);
 662         while (GetNextHashPos(ScanMe, at, &HKLen, &HashKey, &vMsg)) {
 663                 /* Are you a new message, or an old message? */
 664                 Msg = (message_summary*) vMsg;
 665                 if (Reverse && IsInMSetList(MatchMSet, Msg->msgnum)) {
 666                         Msg->Flags = Msg->Flags | FlagToSet;
 667                 }
 668                 else if (!Reverse && !IsInMSetList(MatchMSet, Msg->msgnum)) {
 669                         Msg->Flags = Msg->Flags | FlagToSet;
 670                 }
 671         }
 672         DeleteHashPos(&at);
 673 }
 674
 675
 676 void load_seen_flags(void)
 677 {
 678         StrBuf *OldMsg;
 679         wcsession *WCC = WC;
 680         MSet *MatchMSet;
 681
 682         OldMsg = NewStrBuf();
 683         serv_puts("GTSN");
 684         StrBuf_ServGetln(OldMsg);
 685         if (GetServerStatus(OldMsg, NULL) == 2) {
 686                 StrBufCutLeft(OldMsg, 4);
 687         }
 688         else {
 689                 FreeStrBuf(&OldMsg);
 690                 return;
 691         }
 692
 693         if (ParseMSet(&MatchMSet, OldMsg))
 694         {
 695                 SetFlagsFromMSet(WCC->summ, MatchMSet, MSGFLAG_READ, 0);
 696         }
 697         DeleteMSet(&MatchMSet);
 698         FreeStrBuf(&OldMsg);
 699 }
 700
 701 extern readloop_struct rlid[];
 702
 703 typedef struct _RoomRenderer{
 704         int RoomType;
 705
 706         GetParamsGetServerCall_func GetParamsGetServerCall;
 707
 708         PrintViewHeader_func PrintPageHeader;
 709         PrintViewHeader_func PrintViewHeader;
 710         LoadMsgFromServer_func LoadMsgFromServer;
 711         RenderView_or_Tail_func RenderView_or_Tail;
 712         View_Cleanup_func ViewCleanup;
 713         load_msg_ptrs_detailheaders LHParse;
 714 } RoomRenderer;
 715
 716
 717 /*
 718  * command loop for reading messages
 719  *
 720  * Set oper to "readnew" or "readold" or "readfwd" or "headers" or "readgt" or "readlt" or "do_search"
 721  */
 722 void readloop(long oper, eCustomRoomRenderer ForceRenderer)
 723 {
 724         RoomRenderer *ViewMsg;
 725         void *vViewMsg;
 726         void *vMsg;
 727         message_summary *Msg;
 728         char cmd[256] = "";
 729         char filter[256] = "";
 730         int i, r;
 731         wcsession *WCC = WC;
 732         HashPos *at;
 733         const char *HashKey;
 734         long HKLen;
 735         WCTemplputParams SubTP;
 736         SharedMessageStatus Stat;
 737         void *ViewSpecific;
 738
 739         if (havebstr("is_summary") && (1 == (ibstr("is_summary")))) {
 740                 WCC->CurRoom.view = VIEW_MAILBOX;
 741         }
 742
 743         if (havebstr("view")) {
 744                 WCC->CurRoom.view = ibstr("view");
 745         }
 746
 747         memset(&Stat, 0, sizeof(SharedMessageStatus));
 748         Stat.maxload = 10000;
 749         Stat.lowest_found = (-1);
 750         Stat.highest_found = (-1);
 751         if (ForceRenderer == eUseDefault)
 752                 GetHash(ReadLoopHandler, IKEY(WCC->CurRoom.view), &vViewMsg);
 753         else
 754                 GetHash(ReadLoopHandler, IKEY(ForceRenderer), &vViewMsg);
 755         if (vViewMsg == NULL) {
 756                 WCC->CurRoom.view = VIEW_BBS;
 757                 GetHash(ReadLoopHandler, IKEY(WCC->CurRoom.view), &vViewMsg);
 758         }
 759         if (vViewMsg == NULL) {
 760                 return;                 /* TODO: print message */
 761         }
 762
 763         ViewMsg = (RoomRenderer*) vViewMsg;
 764         if (ViewMsg->PrintPageHeader == NULL)
 765                 output_headers(1, 1, 1, 0, 0, 0);
 766         else
 767                 ViewMsg->PrintPageHeader(&Stat, ViewSpecific);
 768
 769         if (ViewMsg->GetParamsGetServerCall != NULL) {
 770                 r = ViewMsg->GetParamsGetServerCall(
 771                        &Stat,
 772                        &ViewSpecific,
 773                        oper,
 774                        cmd, sizeof(cmd),
 775                        filter, sizeof(filter)
 776                 );
 777         } else {
 778                 r = 0;
 779         }
 780
 781         switch(r)
 782         {
 783         case 400:
 784         case 404:
 785
 786                 return;
 787         case 300: /* the callback hook should do the work for us here, since he knows what to do. */
 788                 return;
 789         case 200:
 790         default:
 791                 break;
 792         }
 793         if (!IsEmptyStr(cmd)) {
 794                 const char *p = NULL;
 795                 if (!IsEmptyStr(filter))
 796                         p = filter;
 797                 Stat.nummsgs = load_msg_ptrs(cmd, p, &Stat, ViewMsg->LHParse);
 798         }
 799
 800         if (Stat.sortit) {
 801                 CompareFunc SortIt;
 802                 StackContext(NULL, &SubTP, NULL, CTX_MAILSUM, 0, NULL);
 803                 {
 804                         SortIt =  RetrieveSort(&SubTP,
 805                                                NULL, 0,
 806                                                HKEY("date"),
 807                                                Stat.defaultsortorder);
 808                 }
 809                 UnStackContext(&SubTP);
 810                 if (SortIt != NULL)
 811                         SortByPayload(WCC->summ, SortIt);
 812         }
 813         if (Stat.startmsg < 0) {
 814                 Stat.startmsg =  0;
 815         }
 816
 817         if (Stat.load_seen) load_seen_flags();
 818
 819         /*
 820          * Print any inforation above the message list...
 821          */
 822         if (ViewMsg->PrintViewHeader != NULL)
 823                 ViewMsg->PrintViewHeader(&Stat, &ViewSpecific);
 824
 825         WCC->startmsg =  Stat.startmsg;
 826         WCC->maxmsgs = Stat.maxmsgs;
 827         WCC->num_displayed = 0;
 828
 829         /* Put some helpful data in vars for mailsummary_json */
 830         {
 831                 StrBuf *Foo;
 832
 833                 Foo = NewStrBuf ();
 834                 StrBufPrintf(Foo, "%ld", Stat.nummsgs);
 835                 PutBstr(HKEY("__READLOOP:TOTALMSGS"), NewStrBufDup(Foo));
 836                 StrBufPrintf(Foo, "%ld", Stat.startmsg);
 837                 PutBstr(HKEY("__READLOOP:STARTMSG"), Foo);
 838         }
 839
 840         /*
 841          * iterate over each message. if we need to load an attachment, do it here.
 842          */
 843
 844         if ((ViewMsg->LoadMsgFromServer != NULL) &&
 845             (!IsEmptyStr(cmd)))
 846         {
 847                 at = GetNewHashPos(WCC->summ, 0);
 848                 Stat.num_displayed = i = 0;
 849                 while ( GetNextHashPos(WCC->summ, at, &HKLen, &HashKey, &vMsg)) {
 850                         Msg = (message_summary*) vMsg;
 851                         if ((Msg->msgnum >= Stat.startmsg) && (Stat.num_displayed <= Stat.maxmsgs)) {
 852                                 ViewMsg->LoadMsgFromServer(&Stat,
 853                                                            &ViewSpecific,
 854                                                            Msg,
 855                                                            (Msg->Flags & MSGFLAG_READ) != 0,
 856                                                            i);
 857                         }
 858                         i++;
 859                 }
 860                 DeleteHashPos(&at);
 861         }
 862
 863         /*
 864          * Done iterating the message list. now tasks we want to do after.
 865          */
 866         if (ViewMsg->RenderView_or_Tail != NULL)
 867                 ViewMsg->RenderView_or_Tail(&Stat, &ViewSpecific, oper);
 868
 869         if (ViewMsg->ViewCleanup != NULL)
 870                 ViewMsg->ViewCleanup(&ViewSpecific);
 871
 872         WCC->startmsg = 0;
 873         WCC->maxmsgs = 0;
 874         if (WCC->summ != NULL) {
 875                 DeleteHash(&WCC->summ);
 876         }
 877 }
 878
 879
 880 /*
 881  * Back end for post_message()
 882  * ... this is where the actual message gets transmitted to the server.
 883  */
 884 void post_mime_to_server(void) {
 885         wcsession *WCC = WC;
 886         char top_boundary[SIZ];
 887         char alt_boundary[SIZ];
 888         int is_multipart = 0;
 889         static int seq = 0;
 890         wc_mime_attachment *att;
 891         char *encoded;
 892         size_t encoded_length;
 893         size_t encoded_strlen;
 894         char *txtmail = NULL;
 895         int include_text_alt = 0;       /* Set to nonzero to include multipart/alternative text/plain */
 896
 897         sprintf(top_boundary, "Citadel--Multipart--%s--%04x--%04x",
 898                 ChrPtr(WCC->serv_info->serv_fqdn),
 899                 getpid(),
 900                 ++seq
 901         );
 902         sprintf(alt_boundary, "Citadel--Multipart--%s--%04x--%04x",
 903                 ChrPtr(WCC->serv_info->serv_fqdn),
 904                 getpid(),
 905                 ++seq
 906         );
 907
 908         /* RFC2045 requires this, and some clients look for it... */
 909         serv_puts("MIME-Version: 1.0");
 910         serv_puts("X-Mailer: " PACKAGE_STRING);
 911
 912         /* If there are attachments, we have to do multipart/mixed */
 913         if (GetCount(WCC->attachments) > 0) {
 914                 is_multipart = 1;
 915         }
 916
 917         /* Only do multipart/alternative for mailboxes.  BBS and Wiki rooms don't need it. */
 918         if ((WCC->CurRoom.view == VIEW_MAILBOX) ||
 919             (WCC->CurRoom.view == VIEW_JSON_LIST))
 920         {
 921                 include_text_alt = 1;
 922         }
 923
 924         if (is_multipart) {
 925                 /* Remember, serv_printf() appends an extra newline */
 926                 serv_printf("Content-type: multipart/mixed; boundary=\"%s\"\n", top_boundary);
 927                 serv_printf("This is a multipart message in MIME format.\n");
 928                 serv_printf("--%s", top_boundary);
 929         }
 930
 931         /* Remember, serv_printf() appends an extra newline */
 932         if (include_text_alt) {
 933                 serv_printf("Content-type: multipart/alternative; "
 934                         "boundary=\"%s\"\n", alt_boundary);
 935                 serv_printf("This is a multipart message in MIME format.\n");
 936                 serv_printf("--%s", alt_boundary);
 937
 938                 serv_puts("Content-type: text/plain; charset=utf-8");
 939                 serv_puts("Content-Transfer-Encoding: quoted-printable");
 940                 serv_puts("");
 941                 txtmail = html_to_ascii(bstr("msgtext"), 0, 80, 0);
 942                 text_to_server_qp(txtmail);     /* Transmit message in quoted-printable encoding */
 943                 free(txtmail);
 944
 945                 serv_printf("\n--%s", alt_boundary);
 946         }
 947
 948         if (havebstr("markdown"))
 949         {
 950                 serv_puts("Content-type: text/x-markdown; charset=utf-8");
 951                 serv_puts("Content-Transfer-Encoding: quoted-printable");
 952                 serv_puts("");
 953                 text_to_server_qp(bstr("msgtext"));     /* Transmit message in quoted-printable encoding */
 954         }
 955         else
 956         {
 957                 serv_puts("Content-type: text/html; charset=utf-8");
 958                 serv_puts("Content-Transfer-Encoding: quoted-printable");
 959                 serv_puts("");
 960                 serv_puts("<html><body>\r\n");
 961                 text_to_server_qp(bstr("msgtext"));     /* Transmit message in quoted-printable encoding */
 962                 serv_puts("</body></html>\r\n");
 963         }
 964
 965         if (include_text_alt) {
 966                 serv_printf("--%s--", alt_boundary);
 967         }
 968
 969         if (is_multipart) {
 970                 long len;
 971                 const char *Key;
 972                 void *vAtt;
 973                 HashPos  *it;
 974
 975                 /* Add in the attachments */
 976                 it = GetNewHashPos(WCC->attachments, 0);
 977                 while (GetNextHashPos(WCC->attachments, it, &len, &Key, &vAtt)) {
 978                         att = (wc_mime_attachment *)vAtt;
 979                         if (att->length == 0)
 980                                 continue;
 981                         encoded_length = ((att->length * 150) / 100);
 982                         encoded = malloc(encoded_length);
 983                         if (encoded == NULL) break;
 984                         encoded_strlen = CtdlEncodeBase64(encoded, ChrPtr(att->Data), StrLength(att->Data), 1);
 985
 986                         serv_printf("--%s", top_boundary);
 987                         serv_printf("Content-type: %s", ChrPtr(att->ContentType));
 988                         serv_printf("Content-disposition: attachment; filename=\"%s\"", ChrPtr(att->FileName));
 989                         serv_puts("Content-transfer-encoding: base64");
 990                         serv_puts("");
 991                         serv_write(encoded, encoded_strlen);
 992                         serv_puts("");
 993                         serv_puts("");
 994                         free(encoded);
 995                 }
 996                 serv_printf("--%s--", top_boundary);
 997                 DeleteHashPos(&it);
 998         }
 999
1000         serv_puts("000");
1001 }
1002
1003
1004 /*
1005  * Post message (or don't post message)
1006  *
1007  * Note regarding the "dont_post" variable:
1008  * A random value (actually, it's just a timestamp) is inserted as a hidden
1009  * field called "postseq" when the display_enter page is generated.  This
1010  * value is checked when posting, using the static variable dont_post.  If a
1011  * user attempts to post twice using the same dont_post value, the message is
1012  * discarded.  This prevents the accidental double-saving of the same message
1013  * if the user happens to click the browser "back" button.
1014  */
1015 void post_message(void)
1016 {
1017         StrBuf *UserName;
1018         StrBuf *EmailAddress;
1019         StrBuf *EncBuf;
1020         char buf[1024];
1021         StrBuf *encoded_subject = NULL;
1022         static long dont_post = (-1L);
1023         int is_anonymous = 0;
1024         const StrBuf *display_name = NULL;
1025         wcsession *WCC = WC;
1026         StrBuf *Buf;
1027
1028         if (havebstr("force_room")) {
1029                 gotoroom(sbstr("force_room"));
1030         }
1031
1032         if (havebstr("display_name")) {
1033                 display_name = sbstr("display_name");
1034                 if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1035                         display_name = NULL;
1036                         is_anonymous = 1;
1037                 }
1038         }
1039
1040         if (!strcasecmp(bstr("submit_action"), "cancel")) {
1041                 AppendImportantMessage(_("Cancelled.  Message was not posted."), -1);
1042         } else if (lbstr("postseq") == dont_post) {
1043                 AppendImportantMessage(
1044                         _("Automatically cancelled because you have already "
1045                           "saved this message."), -1);
1046         } else {
1047                 const char CMD[] = "ENT0 1|%s|%d|4|%s|%s||%s|%s|%s|%s|%s";
1048                 StrBuf *Recp = NULL;
1049                 StrBuf *Cc = NULL;
1050                 StrBuf *Bcc = NULL;
1051                 char *wikipage = NULL;
1052                 const StrBuf *my_email_addr = NULL;
1053                 StrBuf *CmdBuf = NULL;
1054                 StrBuf *references = NULL;
1055                 int saving_to_drafts = 0;
1056                 long HeaderLen = 0;
1057
1058                 saving_to_drafts = !strcasecmp(bstr("submit_action"), "draft");
1059                 Buf = NewStrBuf();
1060
1061                 if (saving_to_drafts) {
1062                         /* temporarily change to the drafts room */
1063                         serv_puts("GOTO _DRAFTS_");
1064                         StrBuf_ServGetln(Buf);
1065                         if (GetServerStatusMsg(Buf, NULL, 1, 2) != 2) {
1066                                 /* You probably don't even have a dumb Drafts folder */
1067                                 syslog(LOG_DEBUG, "%s:%d: server save to drafts error: %s\n", __FILE__, __LINE__, ChrPtr(Buf) + 4);
1068                                 AppendImportantMessage(_("Saved to Drafts failed: "), -1);
1069                                 display_enter();
1070                                 FreeStrBuf(&Buf);
1071                                 return;
1072                         }
1073                 }
1074
1075                 if (havebstr("references"))
1076                 {
1077                         const StrBuf *ref = sbstr("references");
1078                         references = NewStrBufDup(ref);
1079                         if (*ChrPtr(references) == '|') {       /* remove leading '|' if present */
1080                                 StrBufCutLeft(references, 1);
1081                         }
1082                         StrBufReplaceChars(references, '|', '!');
1083                 }
1084                 if (havebstr("subject")) {
1085                         const StrBuf *Subj;
1086                         /*
1087                          * make enough room for the encoded string;
1088                          * plus the QP header
1089                          */
1090                         Subj = sbstr("subject");
1091
1092                         StrBufRFC2047encode(&encoded_subject, Subj);
1093                 }
1094                 UserName = NewStrBuf();
1095                 EmailAddress = NewStrBuf();
1096                 EncBuf = NewStrBuf();
1097
1098                 Recp = StrBufSanitizeEmailRecipientVector(sbstr("recp"), UserName, EmailAddress, EncBuf);
1099                 Cc = StrBufSanitizeEmailRecipientVector(sbstr("cc"), UserName, EmailAddress, EncBuf);
1100                 Bcc = StrBufSanitizeEmailRecipientVector(sbstr("bcc"), UserName, EmailAddress, EncBuf);
1101
1102                 FreeStrBuf(&UserName);
1103                 FreeStrBuf(&EmailAddress);
1104                 FreeStrBuf(&EncBuf);
1105
1106                 wikipage = strdup(bstr("page"));
1107                 str_wiki_index(wikipage);
1108                 my_email_addr = sbstr("my_email_addr");
1109
1110                 HeaderLen = StrLength(Recp) +
1111                         StrLength(encoded_subject) +
1112                         StrLength(Cc) +
1113                         StrLength(Bcc) +
1114                         strlen(wikipage) +
1115                         StrLength(my_email_addr) +
1116                         StrLength(references);
1117                 CmdBuf = NewStrBufPlain(NULL, sizeof (CMD) + HeaderLen);
1118                 StrBufPrintf(CmdBuf,
1119                              CMD,
1120                              saving_to_drafts?"":ChrPtr(Recp),
1121                              is_anonymous,
1122                              ChrPtr(encoded_subject),
1123                              ChrPtr(display_name),
1124                              saving_to_drafts?"":ChrPtr(Cc),
1125                              saving_to_drafts?"":ChrPtr(Bcc),
1126                              wikipage,
1127                              ChrPtr(my_email_addr),
1128                              ChrPtr(references));
1129                 FreeStrBuf(&references);
1130                 FreeStrBuf(&encoded_subject);
1131                 free(wikipage);
1132
1133                 if ((HeaderLen + StrLength(sbstr("msgtext")) < 10) &&
1134                     (GetCount(WCC->attachments) == 0)){
1135                         AppendImportantMessage(_("Refusing to post empty message.\n"), -1);
1136                         FreeStrBuf(&CmdBuf);
1137
1138                 }
1139                 else
1140                 {
1141                         syslog(LOG_DEBUG, "%s\n", ChrPtr(CmdBuf));
1142                         serv_puts(ChrPtr(CmdBuf));
1143                         FreeStrBuf(&CmdBuf);
1144
1145                         StrBuf_ServGetln(Buf);
1146                         if (GetServerStatus(Buf, NULL) == 4) {
1147                                 if (saving_to_drafts) {
1148                                         if (  (havebstr("recp"))
1149                                               || (havebstr("cc"  ))
1150                                               || (havebstr("bcc" )) ) {
1151                                                 /* save recipient headers or room to post to */
1152                                                 serv_printf("To: %s", ChrPtr(Recp));
1153                                                 serv_printf("Cc: %s", ChrPtr(Cc));
1154                                                 serv_printf("Bcc: %s", ChrPtr(Bcc));
1155                                         } else {
1156                                                 serv_printf("X-Citadel-Room: %s", ChrPtr(WCC->CurRoom.name));
1157                                         }
1158                                 }
1159                                 post_mime_to_server();
1160                                 if (saving_to_drafts) {
1161                                         AppendImportantMessage(_("Message has been saved to Drafts.\n"), -1);
1162                                         gotoroom(WCC->CurRoom.name);
1163                                         fixview();
1164                                         readloop(readnew, eUseDefault);
1165                                         FreeStrBuf(&Buf);
1166                                         return;
1167                                 } else if (  (havebstr("recp"))
1168                                              || (havebstr("cc"  ))
1169                                              || (havebstr("bcc" ))
1170                                         ) {
1171                                         AppendImportantMessage(_("Message has been sent.\n"), -1);
1172                                 }
1173                                 else {
1174                                         AppendImportantMessage(_("Message has been posted.\n"), -1);
1175                                 }
1176                                 dont_post = lbstr("postseq");
1177                         } else {
1178                                 syslog(LOG_DEBUG, "%s:%d: server post error: %s", __FILE__, __LINE__, ChrPtr(Buf) + 4);
1179                                 AppendImportantMessage(ChrPtr(Buf) + 4, StrLength(Buf) - 4);
1180                                 display_enter();
1181                                 if (saving_to_drafts) gotoroom(WCC->CurRoom.name);
1182                                 FreeStrBuf(&Recp);
1183                                 FreeStrBuf(&Buf);
1184                                 FreeStrBuf(&Cc);
1185                                 FreeStrBuf(&Bcc);
1186                                 return;
1187                         }
1188                 }
1189                 FreeStrBuf(&Recp);
1190                 FreeStrBuf(&Buf);
1191                 FreeStrBuf(&Cc);
1192                 FreeStrBuf(&Bcc);
1193         }
1194
1195         DeleteHash(&WCC->attachments);
1196
1197         /*
1198          *  We may have been supplied with instructions regarding the location
1199          *  to which we must return after posting.  If found, go there.
1200          */
1201         if (havebstr("return_to")) {
1202                 http_redirect(bstr("return_to"));
1203         }
1204         /*
1205          *  If we were editing a page in a wiki room, go to that page now.
1206          */
1207         else if (havebstr("page")) {
1208                 snprintf(buf, sizeof buf, "wiki?page=%s", bstr("page"));
1209                 http_redirect(buf);
1210         }
1211         /*
1212          *  Otherwise, just go to the "read messages" loop.
1213          */
1214         else {
1215                 fixview();
1216                 readloop(readnew, eUseDefault);
1217         }
1218 }
1219
1220
1221 /*
1222  * Client is uploading an attachment
1223  */
1224 void upload_attachment(void) {
1225         wcsession *WCC = WC;
1226         const char *pch;
1227         int n;
1228         const char *newn;
1229         long newnlen;
1230         void *v;
1231         wc_mime_attachment *att;
1232
1233         syslog(LOG_DEBUG, "upload_attachment()\n");
1234         wc_printf("upload_attachment()<br>\n");
1235
1236         if (WCC->upload_length <= 0) {
1237                 syslog(LOG_DEBUG, "ERROR no attachment was uploaded\n");
1238                 wc_printf("ERROR no attachment was uploaded<br>\n");
1239                 return;
1240         }
1241
1242         syslog(LOG_DEBUG, "Client is uploading %d bytes\n", WCC->upload_length);
1243         wc_printf("Client is uploading %d bytes<br>\n", WCC->upload_length);
1244         att = 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
1250         if (WCC->attachments == NULL) {
1251                 WCC->attachments = NewHash(1, Flathash);
1252         }
1253
1254         /* And add it to the list. */
1255         n = 0;
1256         if ((GetCount(WCC->attachments) > 0) &&
1257             GetHashAt(WCC->attachments,
1258                       GetCount(WCC->attachments) -1,
1259                       &newnlen, &newn, &v))
1260             n = *((int*) newn) + 1;
1261         Put(WCC->attachments, IKEY(n), att, DestroyMime);
1262
1263         /*
1264          * Mozilla sends a simple filename, which is what we want,
1265          * but Satan's Browser sends an entire pathname.  Reduce
1266          * the path to just a filename if we need to.
1267          */
1268         pch = strrchr(ChrPtr(att->FileName), '/');
1269         if (pch != NULL) {
1270                 StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1271         }
1272         pch = strrchr(ChrPtr(att->FileName), '\\');
1273         if (pch != NULL) {
1274                 StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1275         }
1276
1277         /*
1278          * Transfer control of this memory from the upload struct
1279          * to the attachment struct.
1280          */
1281         att->Data = WCC->upload;
1282         WCC->upload = NULL;
1283         WCC->upload_length = 0;
1284 }
1285
1286
1287 /*
1288  * Remove an attachment from the message currently being composed.
1289  *
1290  * Currently we identify the attachment to be removed by its filename.
1291  * There is probably a better way to do this.
1292  */
1293 void remove_attachment(void) {
1294         wcsession *WCC = WC;
1295         wc_mime_attachment *att;
1296         void *vAtt;
1297         StrBuf *WhichAttachment;
1298         HashPos *at;
1299         long len;
1300         const char *key;
1301
1302         WhichAttachment = NewStrBufDup(sbstr("which_attachment"));
1303         StrBufUnescape(WhichAttachment, 0);
1304         at = GetNewHashPos(WCC->attachments, 0);
1305         do {
1306                 GetHashPos(WCC->attachments, at, &len, &key, &vAtt);
1307
1308                 att = (wc_mime_attachment*) vAtt;
1309                 if ((att != NULL) &&
1310                     (strcmp(ChrPtr(WhichAttachment),
1311                             ChrPtr(att->FileName)   ) == 0))
1312                 {
1313                         DeleteEntryFromHash(WCC->attachments, at);
1314                         break;
1315                 }
1316         }
1317         while (NextHashPos(WCC->attachments, at));
1318         FreeStrBuf(&WhichAttachment);
1319         wc_printf("remove_attachment() completed\n");
1320 }
1321
1322
1323 long FourHash(const char *key, long length)
1324 {
1325         int i;
1326         long ret = 0;
1327         const unsigned char *ptr = (const unsigned char*)key;
1328
1329         for (i = 0; i < 4; i++, ptr ++)
1330                 ret = (ret << 8) |
1331                         ( ((*ptr >= 'a') &&
1332                            (*ptr <= 'z'))?
1333                           *ptr - 'a' + 'A':
1334                           *ptr);
1335
1336         return ret;
1337 }
1338
1339 long l_subj;
1340 long l_wefw;
1341 long l_msgn;
1342 long l_from;
1343 long l_rcpt;
1344 long l_cccc;
1345 long l_replyto;
1346 long l_node;
1347 long l_rfca;
1348 long l_nvto;
1349
1350 const char *ReplyToModeStrings [3] = {
1351         "reply",
1352         "replyall",
1353         "forward"
1354 };
1355 typedef enum _eReplyToNodes {
1356         eReply,
1357         eReplyAll,
1358         eForward
1359 }eReplyToNodes;
1360
1361 /*
1362  * display the message entry screen
1363  */
1364 void display_enter(void)
1365 {
1366         const char *ReplyingModeStr;
1367         eReplyToNodes ReplyMode = eReply;
1368         StrBuf *Line;
1369         long Result;
1370         int rc;
1371         const StrBuf *display_name = NULL;
1372         int recipient_required = 0;
1373         int subject_required = 0;
1374         int is_anonymous = 0;
1375         wcsession *WCC = WC;
1376         int i = 0;
1377         long replying_to;
1378
1379         if (havebstr("force_room")) {
1380                 gotoroom(sbstr("force_room"));
1381         }
1382
1383         display_name = sbstr("display_name");
1384         if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1385                 display_name = NULL;
1386                 is_anonymous = 1;
1387         }
1388
1389         /*
1390          * First, do we have permission to enter messages in this room at all?
1391          */
1392         Line = NewStrBuf();
1393         serv_puts("ENT0 0");
1394         StrBuf_ServGetln(Line);
1395         rc = GetServerStatusMsg(Line, &Result, 0, 2);
1396
1397         if (Result == 570) {            /* 570 means that we need a recipient here */
1398                 recipient_required = 1;
1399         }
1400         else if (rc != 2) {             /* Any other error means that we cannot continue */
1401                 rc = GetServerStatusMsg(Line, &Result, 0, 2);
1402                 fixview();
1403                 readloop(readnew, eUseDefault);
1404                 FreeStrBuf(&Line);
1405                 return;
1406         }
1407
1408         /* Is the server strongly recommending that the user enter a message subject? */
1409         if (StrLength(Line) > 4) {
1410                 subject_required = extract_int(ChrPtr(Line) + 4, 1);
1411         }
1412
1413         /*
1414          * Are we perhaps in an address book view?  If so, then an "enter
1415          * message" command really means "add new entry."
1416          */
1417         if (WCC->CurRoom.defview == VIEW_ADDRESSBOOK) {
1418                 do_edit_vcard(-1, "", NULL, NULL, "",  ChrPtr(WCC->CurRoom.name));
1419                 FreeStrBuf(&Line);
1420                 return;
1421         }
1422
1423         /*
1424          * Are we perhaps in a calendar room?  If so, then an "enter
1425          * message" command really means "add new calendar item."
1426          */
1427         if (WCC->CurRoom.defview == VIEW_CALENDAR) {
1428                 display_edit_event();
1429                 FreeStrBuf(&Line);
1430                 return;
1431         }
1432
1433         /*
1434          * Are we perhaps in a tasks view?  If so, then an "enter
1435          * message" command really means "add new task."
1436          */
1437         if (WCC->CurRoom.defview == VIEW_TASKS) {
1438                 display_edit_task();
1439                 FreeStrBuf(&Line);
1440                 return;
1441         }
1442
1443
1444         ReplyingModeStr = bstr("replying_mode");
1445         if (ReplyingModeStr != NULL) for (i = 0; i < 3; i++) {
1446                         if (strcmp(ReplyingModeStr, ReplyToModeStrings[i]) == 0) {
1447                                 ReplyMode = (eReplyToNodes) i;
1448                                 break;
1449                         }
1450                 }
1451
1452
1453         /*
1454          * If the "replying_to" variable is set, it refers to a message
1455          * number from which we must extract some header fields...
1456          */
1457         replying_to = lbstr("replying_to");
1458         if (replying_to > 0) {
1459                 long len;
1460                 StrBuf *wefw = NULL;
1461                 StrBuf *msgn = NULL;
1462                 StrBuf *from = NULL;
1463                 StrBuf *node = NULL;
1464                 StrBuf *rfca = NULL;
1465                 StrBuf *rcpt = NULL;
1466                 StrBuf *cccc = NULL;
1467                 StrBuf *replyto = NULL;
1468                 StrBuf *nvto = NULL;
1469                 serv_printf("MSG0 %ld|1", replying_to);
1470
1471                 StrBuf_ServGetln(Line);
1472                 if (GetServerStatusMsg(Line, NULL, 0, 0) == 1)
1473                         while (len = StrBuf_ServGetln(Line),
1474                                (len >= 0) &&
1475                                ((len != 3)  ||
1476                                 strcmp(ChrPtr(Line), "000")))
1477                         {
1478                                 long which = 0;
1479                                 if ((StrLength(Line) > 4) &&
1480                                     (ChrPtr(Line)[4] == '='))
1481                                         which = FourHash(ChrPtr(Line), 4);
1482
1483                                 if (which == l_subj)
1484                                 {
1485                                         StrBuf *subj = NewStrBuf();
1486                                         StrBuf *FlatSubject;
1487
1488                                         if (ReplyMode == eForward) {
1489                                                 if (strncasecmp(ChrPtr(Line) + 5, "Fw:", 3)) {
1490                                                         StrBufAppendBufPlain(subj, HKEY("Fw: "), 0);
1491                                                 }
1492                                         }
1493                                         else {
1494                                                 if (strncasecmp(ChrPtr(Line) + 5, "Re:", 3)) {
1495                                                         StrBufAppendBufPlain(subj, HKEY("Re: "), 0);
1496                                                 }
1497                                         }
1498                                         StrBufAppendBufPlain(subj,
1499                                                              ChrPtr(Line) + 5,
1500                                                              StrLength(Line) - 5, 0);
1501                                         FlatSubject = NewStrBufPlain(NULL, StrLength(subj));
1502                                         StrBuf_RFC822_to_Utf8(FlatSubject, subj, NULL, NULL);
1503
1504                                         PutBstr(HKEY("subject"), FlatSubject);
1505                                 }
1506
1507                                 else if (which == l_wefw)
1508                                 {
1509                                         int rrtok;
1510                                         int rrlen;
1511
1512                                         wefw = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1513
1514                                         /* Trim down excessively long lists of thread references.  We eliminate the
1515                                          * second one in the list so that the thread root remains intact.
1516                                          */
1517                                         rrtok = num_tokens(ChrPtr(wefw), '|');
1518                                         rrlen = StrLength(wefw);
1519                                         if ( ((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10) ) {
1520                                                 StrBufRemove_token(wefw, 1, '|');
1521                                         }
1522                                 }
1523
1524                                 else if (which == l_msgn) {
1525                                         msgn = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1526                                 }
1527
1528                                 else if (which == l_from) {
1529                                         StrBuf *FlatFrom;
1530                                         from = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1531                                         FlatFrom = NewStrBufPlain(NULL, StrLength(from));
1532                                         StrBuf_RFC822_to_Utf8(FlatFrom, from, NULL, NULL);
1533                                         FreeStrBuf(&from);
1534                                         from = FlatFrom;
1535                                         for (i=0; i<StrLength(from); ++i) {
1536                                                 if (ChrPtr(from)[i] == ',')
1537                                                         StrBufPeek(from, NULL, i, ' ');
1538                                         }
1539                                 }
1540
1541                                 else if (which == l_rcpt) {
1542                                         rcpt = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1543                                 }
1544
1545                                 else if (which == l_cccc) {
1546                                         cccc = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1547                                 }
1548
1549                                 else if (which == l_node) {
1550                                         node = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1551                                 }
1552                                 else if (which == l_replyto) {
1553                                         replyto = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1554                                 }
1555                                 else if (which == l_rfca) {
1556                                         StrBuf *FlatRFCA;
1557                                         rfca = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1558                                         FlatRFCA = NewStrBufPlain(NULL, StrLength(rfca));
1559                                         StrBuf_RFC822_to_Utf8(FlatRFCA, rfca, NULL, NULL);
1560                                         FreeStrBuf(&rfca);
1561                                         rfca = FlatRFCA;
1562                                 }
1563                                 else if (which == l_nvto) {
1564                                         nvto = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1565                                         putbstr("nvto", nvto);
1566                                 }
1567                         }
1568
1569
1570                 if (StrLength(wefw) + StrLength(msgn) > 0) {
1571                         StrBuf *refs = NewStrBuf();
1572                         if (StrLength(wefw) > 0) {
1573                                 StrBufAppendBuf(refs, wefw, 0);
1574                         }
1575                         if ( (StrLength(wefw) > 0) &&
1576                              (StrLength(msgn) > 0) )
1577                         {
1578                                 StrBufAppendBufPlain(refs, HKEY("|"), 0);
1579                         }
1580                         if (StrLength(msgn) > 0) {
1581                                 StrBufAppendBuf(refs, msgn, 0);
1582                         }
1583                         PutBstr(HKEY("references"), refs);
1584                 }
1585
1586                 /*
1587                  * If this is a Reply or a ReplyAll, copy the sender's email into the To: field
1588                  */
1589                 if ((ReplyMode == eReply) || (ReplyMode == eReplyAll))
1590                 {
1591                         StrBuf *to_rcpt;
1592                         if ((StrLength(replyto) > 0) && (ReplyMode == eReplyAll)) {
1593                                 to_rcpt = NewStrBuf();
1594                                 StrBufAppendBuf(to_rcpt, replyto, 0);
1595                         }
1596                         else if (StrLength(rfca) > 0) {
1597                                 to_rcpt = NewStrBuf();
1598                                 StrBufAppendBuf(to_rcpt, from, 0);
1599                                 StrBufAppendBufPlain(to_rcpt, HKEY(" <"), 0);
1600                                 StrBufAppendBuf(to_rcpt, rfca, 0);
1601                                 StrBufAppendBufPlain(to_rcpt, HKEY(">"), 0);
1602                         }
1603                         else {
1604                                 to_rcpt =  from;
1605                                 from = NULL;
1606                                 if (    (StrLength(node) > 0)
1607                                         && (strcasecmp(ChrPtr(node), ChrPtr(WCC->serv_info->serv_nodename)))
1608                                 ) {
1609                                         StrBufAppendBufPlain(to_rcpt, HKEY(" @ "), 0);
1610                                         StrBufAppendBuf(to_rcpt, node, 0);
1611                                 }
1612                         }
1613                         PutBstr(HKEY("recp"), to_rcpt);
1614                 }
1615
1616                 /*
1617                  * Only if this is a ReplyAll, copy all recipients into the Cc: field
1618                  */
1619                 if (ReplyMode == eReplyAll)
1620                 {
1621                         StrBuf *cc_rcpt = rcpt;
1622                         rcpt = NULL;
1623                         if ((StrLength(cccc) > 0) && (StrLength(replyto) == 0))
1624                         {
1625                                 if (cc_rcpt != NULL)  {
1626                                         StrBufAppendPrintf(cc_rcpt, ", ");
1627                                         StrBufAppendBuf(cc_rcpt, cccc, 0);
1628                                 } else {
1629                                         cc_rcpt = cccc;
1630                                         cccc = NULL;
1631                                 }
1632                         }
1633                         if (cc_rcpt != NULL)
1634                                 PutBstr(HKEY("cc"), cc_rcpt);
1635                 }
1636                 FreeStrBuf(&wefw);
1637                 FreeStrBuf(&msgn);
1638                 FreeStrBuf(&from);
1639                 FreeStrBuf(&node);
1640                 FreeStrBuf(&rfca);
1641                 FreeStrBuf(&rcpt);
1642                 FreeStrBuf(&cccc);
1643         }
1644         FreeStrBuf(&Line);
1645         /*
1646          * Otherwise proceed normally.
1647          * Do a custom room banner with no navbar...
1648          */
1649
1650         if (recipient_required) {
1651                 const StrBuf *Recp = NULL;
1652                 const StrBuf *Cc = NULL;
1653                 const StrBuf *Bcc = NULL;
1654                 char *wikipage = NULL;
1655                 StrBuf *CmdBuf = NULL;
1656                 const char CMD[] = "ENT0 0|%s|%d|0||%s||%s|%s|%s";
1657
1658                 Recp = sbstr("recp");
1659                 Cc = sbstr("cc");
1660                 Bcc = sbstr("bcc");
1661                 wikipage = strdup(bstr("page"));
1662                 str_wiki_index(wikipage);
1663
1664                 CmdBuf = NewStrBufPlain(NULL,
1665                                         sizeof (CMD) +
1666                                         StrLength(Recp) +
1667                                         StrLength(display_name) +
1668                                         StrLength(Cc) +
1669                                         StrLength(Bcc) +
1670                                         strlen(wikipage));
1671
1672                 StrBufPrintf(CmdBuf,
1673                              CMD,
1674                              ChrPtr(Recp),
1675                              is_anonymous,
1676                              ChrPtr(display_name),
1677                              ChrPtr(Cc),
1678                              ChrPtr(Bcc),
1679                              wikipage
1680                 );
1681                 serv_puts(ChrPtr(CmdBuf));
1682                 StrBuf_ServGetln(CmdBuf);
1683                 free(wikipage);
1684
1685                 rc = GetServerStatusMsg(CmdBuf, &Result, 0, 0);
1686
1687                 if (    (Result == 570)         /* invalid or missing recipient(s) */
1688                         || (Result == 550)      /* higher access required to send Internet mail */
1689                 ) {
1690                         /* These errors will have been displayed and are excusable */
1691                 }
1692                 else if (rc != 2) {     /* Any other error means that we cannot continue */
1693                         AppendImportantMessage(ChrPtr(CmdBuf) + 4, StrLength(CmdBuf) - 4);
1694                         FreeStrBuf(&CmdBuf);
1695                         fixview();
1696                         readloop(readnew, eUseDefault);
1697                         return;
1698                 }
1699                 FreeStrBuf(&CmdBuf);
1700         }
1701         if (recipient_required)
1702                 PutBstr(HKEY("__RCPTREQUIRED"), NewStrBufPlain(HKEY("1")));
1703         if (recipient_required || subject_required)
1704                 PutBstr(HKEY("__SUBJREQUIRED"), NewStrBufPlain(HKEY("1")));
1705
1706         begin_burst();
1707         output_headers(1, 0, 0, 0, 1, 0);
1708         DoTemplate(HKEY("edit_message"), NULL, &NoCtx);
1709         end_burst();
1710
1711         return;
1712 }
1713
1714 /*
1715  * delete a message
1716  */
1717 void delete_msg(void)
1718 {
1719         long msgid;
1720         StrBuf *Line;
1721
1722         msgid = lbstr("msgid");
1723         Line = NewStrBuf();
1724         if ((WC->CurRoom.RAFlags & UA_ISTRASH) != 0) {  /* Delete from Trash is a real delete */
1725                 serv_printf("DELE %ld", msgid);
1726         }
1727         else {                  /* Otherwise move it to Trash */
1728                 serv_printf("MOVE %ld|_TRASH_|0", msgid);
1729         }
1730
1731         StrBuf_ServGetln(Line);
1732         GetServerStatusMsg(Line, NULL, 1, 0);
1733
1734         fixview();
1735
1736         readloop(readnew, eUseDefault);
1737 }
1738
1739
1740 /*
1741  * move a message to another room
1742  */
1743 void move_msg(void)
1744 {
1745         long msgid;
1746
1747         msgid = lbstr("msgid");
1748
1749         if (havebstr("move_button")) {
1750                 StrBuf *Line;
1751                 serv_printf("MOVE %ld|%s", msgid, bstr("target_room"));
1752                 Line = NewStrBuf();
1753                 StrBuf_ServGetln(Line);
1754                 GetServerStatusMsg(Line, NULL, 1, 0);
1755                 FreeStrBuf(&Line);
1756         } else {
1757                 AppendImportantMessage(_("The message was not moved."), -1);
1758         }
1759
1760         fixview();
1761         readloop(readnew, eUseDefault);
1762 }
1763
1764
1765
1766 /*
1767  * Generic function to output an arbitrary MIME attachment from
1768  * message being composed
1769  *
1770  * partnum              The MIME part to be output
1771  * filename             Fake filename to give
1772  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1773  */
1774 void postpart(StrBuf *partnum, StrBuf *filename, int force_download)
1775 {
1776         void *vPart;
1777         StrBuf *content_type;
1778         wc_mime_attachment *part;
1779         int i;
1780
1781         i = StrToi(partnum);
1782         if (GetHash(WC->attachments, IKEY(i), &vPart) &&
1783             (vPart != NULL)) {
1784                 part = (wc_mime_attachment*) vPart;
1785                 if (force_download) {
1786                         content_type = NewStrBufPlain(HKEY("application/octet-stream"));
1787                 }
1788                 else {
1789                         content_type = NewStrBufDup(part->ContentType);
1790                 }
1791                 StrBufAppendBuf(WC->WBuf, part->Data, 0);
1792                 http_transmit_thing(ChrPtr(content_type), 0);
1793         } else {
1794                 hprintf("HTTP/1.1 404 %s\n", ChrPtr(partnum));
1795                 output_headers(0, 0, 0, 0, 0, 0);
1796                 hprintf("Content-Type: text/plain\r\n");
1797                 begin_burst();
1798                 wc_printf(_("An error occurred while retrieving this part: %s/%s\n"),
1799                         ChrPtr(partnum), ChrPtr(filename));
1800                 end_burst();
1801         }
1802         FreeStrBuf(&content_type);
1803 }
1804
1805
1806 /*
1807  * Generic function to output an arbitrary MIME part from an arbitrary
1808  * message number on the server.
1809  *
1810  * msgnum               Number of the item on the citadel server
1811  * partnum              The MIME part to be output
1812  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1813  */
1814 void mimepart(int force_download)
1815 {
1816         int detect_mime = 0;
1817         long msgnum;
1818         long ErrorDetail;
1819         StrBuf *att;
1820         wcsession *WCC = WC;
1821         StrBuf *Buf;
1822         off_t bytes;
1823         StrBuf *ContentType = NewStrBufPlain(HKEY("application/octet-stream"));
1824         const char *CT;
1825
1826         att = Buf = NewStrBuf();
1827         msgnum = StrBufExtract_long(WCC->Hdr->HR.ReqLine, 0, '/');
1828         StrBufExtract_token(att, WCC->Hdr->HR.ReqLine, 1, '/');
1829
1830         serv_printf("OPNA %ld|%s", msgnum, ChrPtr(att));
1831         StrBuf_ServGetln(Buf);
1832         if (GetServerStatus(Buf, &ErrorDetail) == 2) {
1833                 StrBufCutLeft(Buf, 4);
1834                 bytes = StrBufExtract_long(Buf, 0, '|');
1835                 StrBufExtract_token(ContentType, Buf, 3, '|');
1836                 CheckGZipCompressionAllowed (SKEY(ContentType));
1837                 if (force_download)
1838                 {
1839                         FlushStrBuf(ContentType);
1840                         detect_mime = 0;
1841                 }
1842                 else
1843                 {
1844                         if (!strcasecmp(ChrPtr(ContentType), "application/octet-stream"))
1845                         {
1846                                 StrBufExtract_token(Buf, WCC->Hdr->HR.ReqLine, 2, '/');
1847                                 CT = GuessMimeByFilename(SKEY(Buf));
1848                                 StrBufPlain(ContentType, CT, -1);
1849                         }
1850                         if (!strcasecmp(ChrPtr(ContentType), "application/octet-stream"))
1851                         {
1852                                 detect_mime = 1;
1853                         }
1854                 }
1855                 serv_read_binary_to_http(ContentType, bytes, 0, detect_mime);
1856
1857                 serv_read_binary(WCC->WBuf, bytes, Buf);
1858                 serv_puts("CLOS");
1859                 StrBuf_ServGetln(Buf);
1860                 CT = ChrPtr(ContentType);
1861         } else {
1862                 StrBufCutLeft(Buf, 4);
1863                 switch (ErrorDetail) {
1864                 default:
1865                 case ERROR + MESSAGE_NOT_FOUND:
1866                         hprintf("HTTP/1.1 404 %s\n", ChrPtr(Buf));
1867                         break;
1868                 case ERROR + NOT_LOGGED_IN:
1869                         hprintf("HTTP/1.1 401 %s\n", ChrPtr(Buf));
1870                         break;
1871
1872                 case ERROR + HIGHER_ACCESS_REQUIRED:
1873                         hprintf("HTTP/1.1 403 %s\n", ChrPtr(Buf));
1874                         break;
1875                 case ERROR + INTERNAL_ERROR:
1876                 case ERROR + TOO_BIG:
1877                         hprintf("HTTP/1.1 500 %s\n", ChrPtr(Buf));
1878                         break;
1879                 }
1880
1881                 hprintf("Pragma: no-cache\r\n"
1882                         "Cache-Control: no-store\r\n"
1883                         "Expires: -1\r\n"
1884                 );
1885
1886                 hprintf("Content-Type: text/plain\r\n");
1887                 begin_burst();
1888                 wc_printf(_("An error occurred while retrieving this part: %s\n"),
1889                         ChrPtr(Buf));
1890                 end_burst();
1891         }
1892         FreeStrBuf(&ContentType);
1893         FreeStrBuf(&Buf);
1894 }
1895
1896
1897 /*
1898  * Read any MIME part of a message, from the server, into memory.
1899  */
1900 StrBuf *load_mimepart(long msgnum, char *partnum)
1901 {
1902         off_t bytes;
1903         StrBuf *Buf;
1904
1905         Buf = NewStrBuf();
1906         serv_printf("DLAT %ld|%s", msgnum, partnum);
1907         StrBuf_ServGetln(Buf);
1908         if (GetServerStatus(Buf, NULL) == 6) {
1909                 StrBufCutLeft(Buf, 4);
1910                 bytes = StrBufExtract_long(Buf, 0, '|');
1911                 FreeStrBuf(&Buf);
1912                 Buf = NewStrBuf();
1913                 StrBuf_ServGetBLOBBuffered(Buf, bytes);
1914                 return(Buf);
1915         }
1916         else {
1917                 FreeStrBuf(&Buf);
1918                 return(NULL);
1919         }
1920 }
1921
1922 /*
1923  * Read any MIME part of a message, from the server, into memory.
1924  */
1925 void MimeLoadData(wc_mime_attachment *Mime)
1926 {
1927         StrBuf *Buf;
1928         const char *Ptr;
1929         off_t bytes;
1930         /* TODO: is there a chance the content type is different from the one we know? */
1931
1932         serv_printf("DLAT %ld|%s", Mime->msgnum, ChrPtr(Mime->PartNum));
1933         Buf = NewStrBuf();
1934         StrBuf_ServGetln(Buf);
1935         if (GetServerStatus(Buf, NULL) == 6) {
1936                 Ptr = &(ChrPtr(Buf)[4]);
1937                 bytes = StrBufExtractNext_long(Buf, &Ptr, '|');
1938                 StrBufSkip_NTokenS(Buf, &Ptr, '|', 3);  /* filename, cbtype, mimetype */
1939                 if (Mime->Charset == NULL) Mime->Charset = NewStrBuf();
1940                 StrBufExtract_NextToken(Mime->Charset, Buf, &Ptr, '|');
1941
1942                 if (Mime->Data == NULL)
1943                         Mime->Data = NewStrBufPlain(NULL, bytes);
1944                 StrBuf_ServGetBLOBBuffered(Mime->Data, bytes);
1945         }
1946         else {
1947                 FlushStrBuf(Mime->Data);
1948                 /* TODO XImportant message */
1949         }
1950         FreeStrBuf(&Buf);
1951 }
1952
1953
1954 void view_mimepart(void) {
1955         mimepart(0);
1956 }
1957
1958 void download_mimepart(void) {
1959         mimepart(1);
1960 }
1961
1962 void view_postpart(void) {
1963         StrBuf *filename = NewStrBuf();
1964         StrBuf *partnum = NewStrBuf();
1965
1966         StrBufExtract_token(partnum, WC->Hdr->HR.ReqLine, 0, '/');
1967         StrBufExtract_token(filename, WC->Hdr->HR.ReqLine, 1, '/');
1968
1969         postpart(partnum, filename, 0);
1970
1971         FreeStrBuf(&filename);
1972         FreeStrBuf(&partnum);
1973 }
1974
1975 void download_postpart(void) {
1976         StrBuf *filename = NewStrBuf();
1977         StrBuf *partnum = NewStrBuf();
1978
1979         StrBufExtract_token(partnum, WC->Hdr->HR.ReqLine, 0, '/');
1980         StrBufExtract_token(filename, WC->Hdr->HR.ReqLine, 1, '/');
1981
1982         postpart(partnum, filename, 1);
1983
1984         FreeStrBuf(&filename);
1985         FreeStrBuf(&partnum);
1986 }
1987
1988
1989
1990 void show_num_attachments(void) {
1991         wc_printf("%d", GetCount(WC->attachments));
1992 }
1993
1994
1995 void h_readnew(void) { readloop(readnew, eUseDefault);}
1996 void h_readold(void) { readloop(readold, eUseDefault);}
1997 void h_readfwd(void) { readloop(readfwd, eUseDefault);}
1998 void h_headers(void) { readloop(headers, eUseDefault);}
1999 void h_do_search(void) { readloop(do_search, eUseDefault);}
2000 void h_readgt(void) { readloop(readgt, eUseDefault);}
2001 void h_readlt(void) { readloop(readlt, eUseDefault);}
2002
2003
2004
2005 /* Output message list in JSON format */
2006 void jsonMessageList(void) {
2007         StrBuf *View = NewStrBuf();
2008         const StrBuf *room = sbstr("room");
2009         long oper = (havebstr("query")) ? do_search : readnew;
2010         StrBufPrintf(View, "%d", VIEW_JSON_LIST);
2011         putbstr("view", View);;
2012         gotoroom(room);
2013         readloop(oper, eUseDefault);
2014 }
2015
2016 void RegisterReadLoopHandlerset(
2017         int RoomType,
2018         GetParamsGetServerCall_func GetParamsGetServerCall,
2019         PrintViewHeader_func PrintPageHeader,
2020         PrintViewHeader_func PrintViewHeader,
2021         load_msg_ptrs_detailheaders LH,
2022         LoadMsgFromServer_func LoadMsgFromServer,
2023         RenderView_or_Tail_func RenderView_or_Tail,
2024         View_Cleanup_func ViewCleanup
2025         )
2026 {
2027         RoomRenderer *Handler;
2028
2029         Handler = (RoomRenderer*) malloc(sizeof(RoomRenderer));
2030
2031         Handler->RoomType = RoomType;
2032         Handler->GetParamsGetServerCall = GetParamsGetServerCall;
2033         Handler->PrintPageHeader = PrintPageHeader;
2034         Handler->PrintViewHeader = PrintViewHeader;
2035         Handler->LoadMsgFromServer = LoadMsgFromServer;
2036         Handler->RenderView_or_Tail = RenderView_or_Tail;
2037         Handler->ViewCleanup = ViewCleanup;
2038         Handler->LHParse = LH;
2039
2040         Put(ReadLoopHandler, IKEY(RoomType), Handler, NULL);
2041 }
2042
2043 void
2044 InitModule_MSG
2045 (void)
2046 {
2047         RegisterPreference("use_sig",
2048                            _("Attach signature to email messages?"),
2049                            PRF_YESNO,
2050                            NULL);
2051         RegisterPreference("signature", _("Use this signature:"), PRF_QP_STRING, NULL);
2052         RegisterPreference("default_header_charset",
2053                            _("Default character set for email headers:"),
2054                            PRF_STRING,
2055                            NULL);
2056         RegisterPreference("defaultfrom", _("Preferred email address"), PRF_STRING, NULL);
2057         RegisterPreference("defaultname",
2058                            _("Preferred display name for email messages"),
2059                            PRF_STRING,
2060                            NULL);
2061         RegisterPreference("defaulthandle",
2062                            _("Preferred display name for bulletin board posts"),
2063                            PRF_STRING,
2064                            NULL);
2065         RegisterPreference("mailbox",_("Mailbox view mode"), PRF_STRING, NULL);
2066
2067         WebcitAddUrlHandler(HKEY("readnew"), "", 0, h_readnew, ANONYMOUS|NEED_URL);
2068         WebcitAddUrlHandler(HKEY("readold"), "", 0, h_readold, ANONYMOUS|NEED_URL);
2069         WebcitAddUrlHandler(HKEY("readfwd"), "", 0, h_readfwd, ANONYMOUS|NEED_URL);
2070         WebcitAddUrlHandler(HKEY("headers"), "", 0, h_headers, NEED_URL);
2071         WebcitAddUrlHandler(HKEY("readgt"), "", 0, h_readgt, ANONYMOUS|NEED_URL);
2072         WebcitAddUrlHandler(HKEY("readlt"), "", 0, h_readlt, ANONYMOUS|NEED_URL);
2073         WebcitAddUrlHandler(HKEY("do_search"), "", 0, h_do_search, 0);
2074         WebcitAddUrlHandler(HKEY("display_enter"), "", 0, display_enter, 0);
2075         WebcitAddUrlHandler(HKEY("post"), "", 0, post_message, PROHIBIT_STARTPAGE);
2076         WebcitAddUrlHandler(HKEY("move_msg"), "", 0, move_msg, PROHIBIT_STARTPAGE);
2077         WebcitAddUrlHandler(HKEY("delete_msg"), "", 0, delete_msg, PROHIBIT_STARTPAGE);
2078         WebcitAddUrlHandler(HKEY("msg"), "", 0, embed_message, NEED_URL);
2079         WebcitAddUrlHandler(HKEY("message"), "", 0, handle_one_message, NEED_URL|XHTTP_COMMANDS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
2080         WebcitAddUrlHandler(HKEY("printmsg"), "", 0, print_message, NEED_URL);
2081         WebcitAddUrlHandler(HKEY("msgheaders"), "", 0, display_headers, NEED_URL);
2082
2083         WebcitAddUrlHandler(HKEY("mimepart"), "", 0, view_mimepart, NEED_URL);
2084         WebcitAddUrlHandler(HKEY("mimepart_download"), "", 0, download_mimepart, NEED_URL);
2085         WebcitAddUrlHandler(HKEY("postpart"), "", 0, view_postpart, NEED_URL|PROHIBIT_STARTPAGE);
2086         WebcitAddUrlHandler(HKEY("postpart_download"), "", 0, download_postpart, NEED_URL|PROHIBIT_STARTPAGE);
2087         WebcitAddUrlHandler(HKEY("upload_attachment"), "", 0, upload_attachment, AJAX);
2088         WebcitAddUrlHandler(HKEY("remove_attachment"), "", 0, remove_attachment, AJAX);
2089         WebcitAddUrlHandler(HKEY("show_num_attachments"), "", 0, show_num_attachments, AJAX);
2090
2091         /* json */
2092         WebcitAddUrlHandler(HKEY("roommsgs"), "", 0, jsonMessageList,0);
2093
2094         l_subj = FourHash("subj", 4);
2095         l_wefw = FourHash("wefw", 4);
2096         l_msgn = FourHash("msgn", 4);
2097         l_from = FourHash("from", 4);
2098         l_rcpt = FourHash("rcpt", 4);
2099         l_cccc = FourHash("cccc", 4);
2100         l_replyto = FourHash("rep2", 4);
2101         l_node = FourHash("node", 4);
2102         l_rfca = FourHash("rfca", 4);
2103         l_nvto = FourHash("nvto", 4);
2104
2105         return ;
2106 }
2107
2108 void
2109 SessionDetachModule_MSG
2110 (wcsession *sess)
2111 {
2112         DeleteHash(&sess->summ);
2113 }