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                 StrBuf *Buf;
 934                 serv_printf("Content-type: multipart/alternative; "
 935                         "boundary=\"%s\"\n", alt_boundary);
 936                 serv_printf("This is a multipart message in MIME format.\n");
 937                 serv_printf("--%s", alt_boundary);
 938
 939                 serv_puts("Content-type: text/plain; charset=utf-8");
 940                 serv_puts("Content-Transfer-Encoding: quoted-printable");
 941                 serv_puts("");
 942                 txtmail = html_to_ascii(bstr("msgtext"), 0, 80, 0);
 943                 Buf = NewStrBufPlain(txtmail, -1);
 944                 free(txtmail);
 945
 946                 text_to_server_qp(Buf);     /* Transmit message in quoted-printable encoding */
 947                 FreeStrBuf(&Buf);
 948                 serv_printf("\n--%s", alt_boundary);
 949         }
 950
 951         if (havebstr("markdown"))
 952         {
 953                 serv_puts("Content-type: text/x-markdown; charset=utf-8");
 954                 serv_puts("Content-Transfer-Encoding: quoted-printable");
 955                 serv_puts("");
 956                 text_to_server_qp(sbstr("msgtext"));    /* Transmit message in quoted-printable encoding */
 957         }
 958         else
 959         {
 960                 serv_puts("Content-type: text/html; charset=utf-8");
 961                 serv_puts("Content-Transfer-Encoding: quoted-printable");
 962                 serv_puts("");
 963                 serv_puts("<html><body>\r\n");
 964                 text_to_server_qp(sbstr("msgtext"));    /* Transmit message in quoted-printable encoding */
 965                 serv_puts("</body></html>\r\n");
 966         }
 967
 968         if (include_text_alt) {
 969                 serv_printf("--%s--", alt_boundary);
 970         }
 971
 972         if (is_multipart) {
 973                 long len;
 974                 const char *Key;
 975                 void *vAtt;
 976                 HashPos  *it;
 977
 978                 /* Add in the attachments */
 979                 it = GetNewHashPos(WCC->attachments, 0);
 980                 while (GetNextHashPos(WCC->attachments, it, &len, &Key, &vAtt)) {
 981                         att = (wc_mime_attachment *)vAtt;
 982                         if (att->length == 0)
 983                                 continue;
 984                         encoded_length = ((att->length * 150) / 100);
 985                         encoded = malloc(encoded_length);
 986                         if (encoded == NULL) break;
 987                         encoded_strlen = CtdlEncodeBase64(encoded, ChrPtr(att->Data), StrLength(att->Data), 1);
 988
 989                         serv_printf("--%s", top_boundary);
 990                         serv_printf("Content-type: %s", ChrPtr(att->ContentType));
 991                         serv_printf("Content-disposition: attachment; filename=\"%s\"", ChrPtr(att->FileName));
 992                         serv_puts("Content-transfer-encoding: base64");
 993                         serv_puts("");
 994                         serv_write(encoded, encoded_strlen);
 995                         serv_puts("");
 996                         serv_puts("");
 997                         free(encoded);
 998                 }
 999                 serv_printf("--%s--", top_boundary);
1000                 DeleteHashPos(&it);
1001         }
1002
1003         serv_puts("000");
1004 }
1005
1006
1007 /*
1008  * Post message (or don't post message)
1009  *
1010  * Note regarding the "dont_post" variable:
1011  * A random value (actually, it's just a timestamp) is inserted as a hidden
1012  * field called "postseq" when the display_enter page is generated.  This
1013  * value is checked when posting, using the static variable dont_post.  If a
1014  * user attempts to post twice using the same dont_post value, the message is
1015  * discarded.  This prevents the accidental double-saving of the same message
1016  * if the user happens to click the browser "back" button.
1017  */
1018 void post_message(void)
1019 {
1020         StrBuf *UserName;
1021         StrBuf *EmailAddress;
1022         StrBuf *EncBuf;
1023         char buf[1024];
1024         StrBuf *encoded_subject = NULL;
1025         static long dont_post = (-1L);
1026         int is_anonymous = 0;
1027         const StrBuf *display_name = NULL;
1028         wcsession *WCC = WC;
1029         StrBuf *Buf;
1030
1031         if (havebstr("force_room")) {
1032                 gotoroom(sbstr("force_room"));
1033         }
1034
1035         if (havebstr("display_name")) {
1036                 display_name = sbstr("display_name");
1037                 if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1038                         display_name = NULL;
1039                         is_anonymous = 1;
1040                 }
1041         }
1042
1043         if (!strcasecmp(bstr("submit_action"), "cancel")) {
1044                 AppendImportantMessage(_("Cancelled.  Message was not posted."), -1);
1045         } else if (lbstr("postseq") == dont_post) {
1046                 AppendImportantMessage(
1047                         _("Automatically cancelled because you have already "
1048                           "saved this message."), -1);
1049         } else {
1050                 const char CMD[] = "ENT0 1|%s|%d|4|%s|%s||%s|%s|%s|%s|%s";
1051                 StrBuf *Recp = NULL;
1052                 StrBuf *Cc = NULL;
1053                 StrBuf *Bcc = NULL;
1054                 char *wikipage = NULL;
1055                 const StrBuf *my_email_addr = NULL;
1056                 StrBuf *CmdBuf = NULL;
1057                 StrBuf *references = NULL;
1058                 int saving_to_drafts = 0;
1059                 long HeaderLen = 0;
1060
1061                 saving_to_drafts = !strcasecmp(bstr("submit_action"), "draft");
1062                 Buf = NewStrBuf();
1063
1064                 if (saving_to_drafts) {
1065                         /* temporarily change to the drafts room */
1066                         serv_puts("GOTO _DRAFTS_");
1067                         StrBuf_ServGetln(Buf);
1068                         if (GetServerStatusMsg(Buf, NULL, 1, 2) != 2) {
1069                                 /* You probably don't even have a dumb Drafts folder */
1070                                 syslog(LOG_DEBUG, "%s:%d: server save to drafts error: %s\n", __FILE__, __LINE__, ChrPtr(Buf) + 4);
1071                                 AppendImportantMessage(_("Saved to Drafts failed: "), -1);
1072                                 display_enter();
1073                                 FreeStrBuf(&Buf);
1074                                 return;
1075                         }
1076                 }
1077
1078                 if (havebstr("references"))
1079                 {
1080                         const StrBuf *ref = sbstr("references");
1081                         references = NewStrBufDup(ref);
1082                         if (*ChrPtr(references) == '|') {       /* remove leading '|' if present */
1083                                 StrBufCutLeft(references, 1);
1084                         }
1085                         StrBufReplaceChars(references, '|', '!');
1086                 }
1087                 if (havebstr("subject")) {
1088                         const StrBuf *Subj;
1089                         /*
1090                          * make enough room for the encoded string;
1091                          * plus the QP header
1092                          */
1093                         Subj = sbstr("subject");
1094
1095                         StrBufRFC2047encode(&encoded_subject, Subj);
1096                 }
1097                 UserName = NewStrBuf();
1098                 EmailAddress = NewStrBuf();
1099                 EncBuf = NewStrBuf();
1100
1101                 Recp = StrBufSanitizeEmailRecipientVector(sbstr("recp"), UserName, EmailAddress, EncBuf);
1102                 Cc = StrBufSanitizeEmailRecipientVector(sbstr("cc"), UserName, EmailAddress, EncBuf);
1103                 Bcc = StrBufSanitizeEmailRecipientVector(sbstr("bcc"), UserName, EmailAddress, EncBuf);
1104
1105                 FreeStrBuf(&UserName);
1106                 FreeStrBuf(&EmailAddress);
1107                 FreeStrBuf(&EncBuf);
1108
1109                 wikipage = strdup(bstr("page"));
1110                 str_wiki_index(wikipage);
1111                 my_email_addr = sbstr("my_email_addr");
1112
1113                 HeaderLen = StrLength(Recp) +
1114                         StrLength(encoded_subject) +
1115                         StrLength(Cc) +
1116                         StrLength(Bcc) +
1117                         strlen(wikipage) +
1118                         StrLength(my_email_addr) +
1119                         StrLength(references);
1120                 CmdBuf = NewStrBufPlain(NULL, sizeof (CMD) + HeaderLen);
1121                 StrBufPrintf(CmdBuf,
1122                              CMD,
1123                              saving_to_drafts?"":ChrPtr(Recp),
1124                              is_anonymous,
1125                              ChrPtr(encoded_subject),
1126                              ChrPtr(display_name),
1127                              saving_to_drafts?"":ChrPtr(Cc),
1128                              saving_to_drafts?"":ChrPtr(Bcc),
1129                              wikipage,
1130                              ChrPtr(my_email_addr),
1131                              ChrPtr(references));
1132                 FreeStrBuf(&references);
1133                 FreeStrBuf(&encoded_subject);
1134                 free(wikipage);
1135
1136                 if ((HeaderLen + StrLength(sbstr("msgtext")) < 10) &&
1137                     (GetCount(WCC->attachments) == 0)){
1138                         AppendImportantMessage(_("Refusing to post empty message.\n"), -1);
1139                         FreeStrBuf(&CmdBuf);
1140
1141                 }
1142                 else
1143                 {
1144                         syslog(LOG_DEBUG, "%s\n", ChrPtr(CmdBuf));
1145                         serv_puts(ChrPtr(CmdBuf));
1146                         FreeStrBuf(&CmdBuf);
1147
1148                         StrBuf_ServGetln(Buf);
1149                         if (GetServerStatus(Buf, NULL) == 4) {
1150                                 if (saving_to_drafts) {
1151                                         if (  (havebstr("recp"))
1152                                               || (havebstr("cc"  ))
1153                                               || (havebstr("bcc" )) ) {
1154                                                 /* save recipient headers or room to post to */
1155                                                 serv_printf("To: %s", ChrPtr(Recp));
1156                                                 serv_printf("Cc: %s", ChrPtr(Cc));
1157                                                 serv_printf("Bcc: %s", ChrPtr(Bcc));
1158                                         } else {
1159                                                 serv_printf("X-Citadel-Room: %s", ChrPtr(WCC->CurRoom.name));
1160                                         }
1161                                 }
1162                                 post_mime_to_server();
1163                                 if (saving_to_drafts) {
1164                                         AppendImportantMessage(_("Message has been saved to Drafts.\n"), -1);
1165                                         gotoroom(WCC->CurRoom.name);
1166                                         fixview();
1167                                         readloop(readnew, eUseDefault);
1168                                         FreeStrBuf(&Buf);
1169                                         return;
1170                                 } else if (  (havebstr("recp"))
1171                                              || (havebstr("cc"  ))
1172                                              || (havebstr("bcc" ))
1173                                         ) {
1174                                         AppendImportantMessage(_("Message has been sent.\n"), -1);
1175                                 }
1176                                 else {
1177                                         AppendImportantMessage(_("Message has been posted.\n"), -1);
1178                                 }
1179                                 dont_post = lbstr("postseq");
1180                         } else {
1181                                 syslog(LOG_DEBUG, "%s:%d: server post error: %s", __FILE__, __LINE__, ChrPtr(Buf) + 4);
1182                                 AppendImportantMessage(ChrPtr(Buf) + 4, StrLength(Buf) - 4);
1183                                 display_enter();
1184                                 if (saving_to_drafts) gotoroom(WCC->CurRoom.name);
1185                                 FreeStrBuf(&Recp);
1186                                 FreeStrBuf(&Buf);
1187                                 FreeStrBuf(&Cc);
1188                                 FreeStrBuf(&Bcc);
1189                                 return;
1190                         }
1191                 }
1192                 FreeStrBuf(&Recp);
1193                 FreeStrBuf(&Buf);
1194                 FreeStrBuf(&Cc);
1195                 FreeStrBuf(&Bcc);
1196         }
1197
1198         DeleteHash(&WCC->attachments);
1199
1200         /*
1201          *  We may have been supplied with instructions regarding the location
1202          *  to which we must return after posting.  If found, go there.
1203          */
1204         if (havebstr("return_to")) {
1205                 http_redirect(bstr("return_to"));
1206         }
1207         /*
1208          *  If we were editing a page in a wiki room, go to that page now.
1209          */
1210         else if (havebstr("page")) {
1211                 snprintf(buf, sizeof buf, "wiki?page=%s", bstr("page"));
1212                 http_redirect(buf);
1213         }
1214         /*
1215          *  Otherwise, just go to the "read messages" loop.
1216          */
1217         else {
1218                 fixview();
1219                 readloop(readnew, eUseDefault);
1220         }
1221 }
1222
1223
1224 /*
1225  * Client is uploading an attachment
1226  */
1227 void upload_attachment(void) {
1228         wcsession *WCC = WC;
1229         const char *pch;
1230         int n;
1231         const char *newn;
1232         long newnlen;
1233         void *v;
1234         wc_mime_attachment *att;
1235         const StrBuf *Tmpl = sbstr("template");
1236         const StrBuf *MimeType = NULL;
1237         const StrBuf *UID;
1238
1239         begin_burst();
1240         syslog(LOG_DEBUG, "upload_attachment()\n");
1241         if (!Tmpl) wc_printf("upload_attachment()<br>\n");
1242
1243         if (WCC->upload_length <= 0) {
1244                 syslog(LOG_DEBUG, "ERROR no attachment was uploaded\n");
1245                 if (Tmpl)
1246                 {
1247                         putlbstr("UPLOAD_ERROR", 1);
1248                         MimeType = DoTemplate(SKEY(Tmpl), NULL, &NoCtx);
1249                 }
1250                 else      wc_printf("ERROR no attachment was uploaded<br>\n");
1251                 http_transmit_thing(ChrPtr(MimeType), 0);
1252
1253                 return;
1254         }
1255
1256         syslog(LOG_DEBUG, "Client is uploading %d bytes\n", WCC->upload_length);
1257         if (Tmpl) putlbstr("UPLOAD_LENGTH", WCC->upload_length);
1258         else wc_printf("Client is uploading %d bytes<br>\n", WCC->upload_length);
1259
1260         att = (wc_mime_attachment*)malloc(sizeof(wc_mime_attachment));
1261         memset(att, 0, sizeof(wc_mime_attachment ));
1262         att->length = WCC->upload_length;
1263         att->ContentType = NewStrBufPlain(WCC->upload_content_type, -1);
1264         att->FileName = NewStrBufDup(WCC->upload_filename);
1265         UID = SBSTR("qquuid");
1266         if (UID)
1267                 att->PartNum = NewStrBufDup(UID);
1268
1269         if (WCC->attachments == NULL) {
1270                 WCC->attachments = NewHash(1, Flathash);
1271         }
1272
1273         /* And add it to the list. */
1274         n = 0;
1275         if ((GetCount(WCC->attachments) > 0) &&
1276             GetHashAt(WCC->attachments,
1277                       GetCount(WCC->attachments) -1,
1278                       &newnlen, &newn, &v))
1279             n = *((int*) newn) + 1;
1280         Put(WCC->attachments, IKEY(n), att, DestroyMime);
1281
1282         /*
1283          * Mozilla sends a simple filename, which is what we want,
1284          * but Satan's Browser sends an entire pathname.  Reduce
1285          * the path to just a filename if we need to.
1286          */
1287         pch = strrchr(ChrPtr(att->FileName), '/');
1288         if (pch != NULL) {
1289                 StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1290         }
1291         pch = strrchr(ChrPtr(att->FileName), '\\');
1292         if (pch != NULL) {
1293                 StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1294         }
1295
1296         /*
1297          * Transfer control of this memory from the upload struct
1298          * to the attachment struct.
1299          */
1300         att->Data = WCC->upload;
1301         WCC->upload = NULL;
1302         WCC->upload_length = 0;
1303
1304         if (Tmpl) MimeType = DoTemplate(SKEY(Tmpl), NULL, &NoCtx);
1305         http_transmit_thing(ChrPtr(MimeType), 0);
1306 }
1307
1308
1309 /*
1310  * Remove an attachment from the message currently being composed.
1311  *
1312  * Currently we identify the attachment to be removed by its filename.
1313  * There is probably a better way to do this.
1314  */
1315 void remove_attachment(void) {
1316         wcsession *WCC = WC;
1317         wc_mime_attachment *att;
1318         void *vAtt;
1319         StrBuf *WhichAttachment;
1320         HashPos *at;
1321         long len;
1322         int found=0;
1323         const char *key;
1324
1325         WhichAttachment = NewStrBufDup(sbstr("which_attachment"));
1326         if (ChrPtr(WhichAttachment)[0] == '/')
1327                 StrBufCutLeft(WhichAttachment, 1);
1328         StrBufUnescape(WhichAttachment, 0);
1329         at = GetNewHashPos(WCC->attachments, 0);
1330         do {
1331                 vAtt = NULL;
1332                 GetHashPos(WCC->attachments, at, &len, &key, &vAtt);
1333
1334                 att = (wc_mime_attachment*) vAtt;
1335                 if ((att != NULL) &&
1336                     (
1337                             !strcmp(ChrPtr(WhichAttachment), ChrPtr(att->FileName)) ||
1338                     ((att->PartNum != NULL) &&
1339                      !strcmp(ChrPtr(WhichAttachment), ChrPtr(att->PartNum)))
1340                             ))
1341                 {
1342                         DeleteEntryFromHash(WCC->attachments, at);
1343                         found=1;
1344                         break;
1345                 }
1346         }
1347         while (NextHashPos(WCC->attachments, at));
1348
1349         FreeStrBuf(&WhichAttachment);
1350         wc_printf("remove_attachment(%d) completed\n", found);
1351 }
1352
1353
1354 long FourHash(const char *key, long length)
1355 {
1356         int i;
1357         long ret = 0;
1358         const unsigned char *ptr = (const unsigned char*)key;
1359
1360         for (i = 0; i < 4; i++, ptr ++)
1361                 ret = (ret << 8) |
1362                         ( ((*ptr >= 'a') &&
1363                            (*ptr <= 'z'))?
1364                           *ptr - 'a' + 'A':
1365                           *ptr);
1366
1367         return ret;
1368 }
1369
1370 long l_subj;
1371 long l_wefw;
1372 long l_msgn;
1373 long l_from;
1374 long l_rcpt;
1375 long l_cccc;
1376 long l_replyto;
1377 long l_node;
1378 long l_rfca;
1379 long l_nvto;
1380
1381 const char *ReplyToModeStrings [3] = {
1382         "reply",
1383         "replyall",
1384         "forward"
1385 };
1386 typedef enum _eReplyToNodes {
1387         eReply,
1388         eReplyAll,
1389         eForward
1390 }eReplyToNodes;
1391
1392 /*
1393  * display the message entry screen
1394  */
1395 void display_enter(void)
1396 {
1397         const char *ReplyingModeStr;
1398         eReplyToNodes ReplyMode = eReply;
1399         StrBuf *Line;
1400         long Result;
1401         int rc;
1402         const StrBuf *display_name = NULL;
1403         int recipient_required = 0;
1404         int subject_required = 0;
1405         int is_anonymous = 0;
1406         wcsession *WCC = WC;
1407         int i = 0;
1408         long replying_to;
1409
1410         if (havebstr("force_room")) {
1411                 gotoroom(sbstr("force_room"));
1412         }
1413
1414         display_name = sbstr("display_name");
1415         if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1416                 display_name = NULL;
1417                 is_anonymous = 1;
1418         }
1419
1420         /*
1421          * First, do we have permission to enter messages in this room at all?
1422          */
1423         Line = NewStrBuf();
1424         serv_puts("ENT0 0");
1425         StrBuf_ServGetln(Line);
1426         rc = GetServerStatusMsg(Line, &Result, 0, 2);
1427
1428         if (Result == 570) {            /* 570 means that we need a recipient here */
1429                 recipient_required = 1;
1430         }
1431         else if (rc != 2) {             /* Any other error means that we cannot continue */
1432                 rc = GetServerStatusMsg(Line, &Result, 0, 2);
1433                 fixview();
1434                 readloop(readnew, eUseDefault);
1435                 FreeStrBuf(&Line);
1436                 return;
1437         }
1438
1439         /* Is the server strongly recommending that the user enter a message subject? */
1440         if (StrLength(Line) > 4) {
1441                 subject_required = extract_int(ChrPtr(Line) + 4, 1);
1442         }
1443
1444         /*
1445          * Are we perhaps in an address book view?  If so, then an "enter
1446          * message" command really means "add new entry."
1447          */
1448         if (WCC->CurRoom.defview == VIEW_ADDRESSBOOK) {
1449                 do_edit_vcard(-1, "", NULL, NULL, "",  ChrPtr(WCC->CurRoom.name));
1450                 FreeStrBuf(&Line);
1451                 return;
1452         }
1453
1454         /*
1455          * Are we perhaps in a calendar room?  If so, then an "enter
1456          * message" command really means "add new calendar item."
1457          */
1458         if (WCC->CurRoom.defview == VIEW_CALENDAR) {
1459                 display_edit_event();
1460                 FreeStrBuf(&Line);
1461                 return;
1462         }
1463
1464         /*
1465          * Are we perhaps in a tasks view?  If so, then an "enter
1466          * message" command really means "add new task."
1467          */
1468         if (WCC->CurRoom.defview == VIEW_TASKS) {
1469                 display_edit_task();
1470                 FreeStrBuf(&Line);
1471                 return;
1472         }
1473
1474
1475         ReplyingModeStr = bstr("replying_mode");
1476         if (ReplyingModeStr != NULL) for (i = 0; i < 3; i++) {
1477                         if (strcmp(ReplyingModeStr, ReplyToModeStrings[i]) == 0) {
1478                                 ReplyMode = (eReplyToNodes) i;
1479                                 break;
1480                         }
1481                 }
1482
1483
1484         /*
1485          * If the "replying_to" variable is set, it refers to a message
1486          * number from which we must extract some header fields...
1487          */
1488         replying_to = lbstr("replying_to");
1489         if (replying_to > 0) {
1490                 long len;
1491                 StrBuf *wefw = NULL;
1492                 StrBuf *msgn = NULL;
1493                 StrBuf *from = NULL;
1494                 StrBuf *node = NULL;
1495                 StrBuf *rfca = NULL;
1496                 StrBuf *rcpt = NULL;
1497                 StrBuf *cccc = NULL;
1498                 StrBuf *replyto = NULL;
1499                 StrBuf *nvto = NULL;
1500                 serv_printf("MSG0 %ld|1", replying_to);
1501
1502                 StrBuf_ServGetln(Line);
1503                 if (GetServerStatusMsg(Line, NULL, 0, 0) == 1)
1504                         while (len = StrBuf_ServGetln(Line),
1505                                (len >= 0) &&
1506                                ((len != 3)  ||
1507                                 strcmp(ChrPtr(Line), "000")))
1508                         {
1509                                 long which = 0;
1510                                 if ((StrLength(Line) > 4) &&
1511                                     (ChrPtr(Line)[4] == '='))
1512                                         which = FourHash(ChrPtr(Line), 4);
1513
1514                                 if (which == l_subj)
1515                                 {
1516                                         StrBuf *subj = NewStrBuf();
1517                                         StrBuf *FlatSubject;
1518
1519                                         if (ReplyMode == eForward) {
1520                                                 if (strncasecmp(ChrPtr(Line) + 5, "Fw:", 3)) {
1521                                                         StrBufAppendBufPlain(subj, HKEY("Fw: "), 0);
1522                                                 }
1523                                         }
1524                                         else {
1525                                                 if (strncasecmp(ChrPtr(Line) + 5, "Re:", 3)) {
1526                                                         StrBufAppendBufPlain(subj, HKEY("Re: "), 0);
1527                                                 }
1528                                         }
1529                                         StrBufAppendBufPlain(subj,
1530                                                              ChrPtr(Line) + 5,
1531                                                              StrLength(Line) - 5, 0);
1532                                         FlatSubject = NewStrBufPlain(NULL, StrLength(subj));
1533                                         StrBuf_RFC822_to_Utf8(FlatSubject, subj, NULL, NULL);
1534
1535                                         PutBstr(HKEY("subject"), FlatSubject);
1536                                 }
1537
1538                                 else if (which == l_wefw)
1539                                 {
1540                                         int rrtok;
1541                                         int rrlen;
1542
1543                                         wefw = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1544
1545                                         /* Trim down excessively long lists of thread references.  We eliminate the
1546                                          * second one in the list so that the thread root remains intact.
1547                                          */
1548                                         rrtok = num_tokens(ChrPtr(wefw), '|');
1549                                         rrlen = StrLength(wefw);
1550                                         if ( ((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10) ) {
1551                                                 StrBufRemove_token(wefw, 1, '|');
1552                                         }
1553                                 }
1554
1555                                 else if (which == l_msgn) {
1556                                         msgn = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1557                                 }
1558
1559                                 else if (which == l_from) {
1560                                         StrBuf *FlatFrom;
1561                                         from = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1562                                         FlatFrom = NewStrBufPlain(NULL, StrLength(from));
1563                                         StrBuf_RFC822_to_Utf8(FlatFrom, from, NULL, NULL);
1564                                         FreeStrBuf(&from);
1565                                         from = FlatFrom;
1566                                         for (i=0; i<StrLength(from); ++i) {
1567                                                 if (ChrPtr(from)[i] == ',')
1568                                                         StrBufPeek(from, NULL, i, ' ');
1569                                         }
1570                                 }
1571
1572                                 else if (which == l_rcpt) {
1573                                         rcpt = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1574                                 }
1575
1576                                 else if (which == l_cccc) {
1577                                         cccc = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1578                                 }
1579
1580                                 else if (which == l_node) {
1581                                         node = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1582                                 }
1583                                 else if (which == l_replyto) {
1584                                         replyto = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1585                                 }
1586                                 else if (which == l_rfca) {
1587                                         StrBuf *FlatRFCA;
1588                                         rfca = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1589                                         FlatRFCA = NewStrBufPlain(NULL, StrLength(rfca));
1590                                         StrBuf_RFC822_to_Utf8(FlatRFCA, rfca, NULL, NULL);
1591                                         FreeStrBuf(&rfca);
1592                                         rfca = FlatRFCA;
1593                                 }
1594                                 else if (which == l_nvto) {
1595                                         nvto = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1596                                         putbstr("nvto", nvto);
1597                                 }
1598                         }
1599
1600
1601                 if (StrLength(wefw) + StrLength(msgn) > 0) {
1602                         StrBuf *refs = NewStrBuf();
1603                         if (StrLength(wefw) > 0) {
1604                                 StrBufAppendBuf(refs, wefw, 0);
1605                         }
1606                         if ( (StrLength(wefw) > 0) &&
1607                              (StrLength(msgn) > 0) )
1608                         {
1609                                 StrBufAppendBufPlain(refs, HKEY("|"), 0);
1610                         }
1611                         if (StrLength(msgn) > 0) {
1612                                 StrBufAppendBuf(refs, msgn, 0);
1613                         }
1614                         PutBstr(HKEY("references"), refs);
1615                 }
1616
1617                 /*
1618                  * If this is a Reply or a ReplyAll, copy the sender's email into the To: field
1619                  */
1620                 if ((ReplyMode == eReply) || (ReplyMode == eReplyAll))
1621                 {
1622                         StrBuf *to_rcpt;
1623                         if ((StrLength(replyto) > 0) && (ReplyMode == eReplyAll)) {
1624                                 to_rcpt = NewStrBuf();
1625                                 StrBufAppendBuf(to_rcpt, replyto, 0);
1626                         }
1627                         else if (StrLength(rfca) > 0) {
1628                                 to_rcpt = NewStrBuf();
1629                                 StrBufAppendBuf(to_rcpt, from, 0);
1630                                 StrBufAppendBufPlain(to_rcpt, HKEY(" <"), 0);
1631                                 StrBufAppendBuf(to_rcpt, rfca, 0);
1632                                 StrBufAppendBufPlain(to_rcpt, HKEY(">"), 0);
1633                         }
1634                         else {
1635                                 to_rcpt =  from;
1636                                 from = NULL;
1637                                 if (    (StrLength(node) > 0)
1638                                         && (strcasecmp(ChrPtr(node), ChrPtr(WCC->serv_info->serv_nodename)))
1639                                 ) {
1640                                         StrBufAppendBufPlain(to_rcpt, HKEY(" @ "), 0);
1641                                         StrBufAppendBuf(to_rcpt, node, 0);
1642                                 }
1643                         }
1644                         PutBstr(HKEY("recp"), to_rcpt);
1645                 }
1646
1647                 /*
1648                  * Only if this is a ReplyAll, copy all recipients into the Cc: field
1649                  */
1650                 if (ReplyMode == eReplyAll)
1651                 {
1652                         StrBuf *cc_rcpt = rcpt;
1653                         rcpt = NULL;
1654                         if ((StrLength(cccc) > 0) && (StrLength(replyto) == 0))
1655                         {
1656                                 if (cc_rcpt != NULL)  {
1657                                         StrBufAppendPrintf(cc_rcpt, ", ");
1658                                         StrBufAppendBuf(cc_rcpt, cccc, 0);
1659                                 } else {
1660                                         cc_rcpt = cccc;
1661                                         cccc = NULL;
1662                                 }
1663                         }
1664                         if (cc_rcpt != NULL)
1665                                 PutBstr(HKEY("cc"), cc_rcpt);
1666                 }
1667                 FreeStrBuf(&wefw);
1668                 FreeStrBuf(&msgn);
1669                 FreeStrBuf(&from);
1670                 FreeStrBuf(&node);
1671                 FreeStrBuf(&rfca);
1672                 FreeStrBuf(&rcpt);
1673                 FreeStrBuf(&cccc);
1674         }
1675         FreeStrBuf(&Line);
1676         /*
1677          * Otherwise proceed normally.
1678          * Do a custom room banner with no navbar...
1679          */
1680
1681         if (recipient_required) {
1682                 const StrBuf *Recp = NULL;
1683                 const StrBuf *Cc = NULL;
1684                 const StrBuf *Bcc = NULL;
1685                 char *wikipage = NULL;
1686                 StrBuf *CmdBuf = NULL;
1687                 const char CMD[] = "ENT0 0|%s|%d|0||%s||%s|%s|%s";
1688
1689                 Recp = sbstr("recp");
1690                 Cc = sbstr("cc");
1691                 Bcc = sbstr("bcc");
1692                 wikipage = strdup(bstr("page"));
1693                 str_wiki_index(wikipage);
1694
1695                 CmdBuf = NewStrBufPlain(NULL,
1696                                         sizeof (CMD) +
1697                                         StrLength(Recp) +
1698                                         StrLength(display_name) +
1699                                         StrLength(Cc) +
1700                                         StrLength(Bcc) +
1701                                         strlen(wikipage));
1702
1703                 StrBufPrintf(CmdBuf,
1704                              CMD,
1705                              ChrPtr(Recp),
1706                              is_anonymous,
1707                              ChrPtr(display_name),
1708                              ChrPtr(Cc),
1709                              ChrPtr(Bcc),
1710                              wikipage
1711                 );
1712                 serv_puts(ChrPtr(CmdBuf));
1713                 StrBuf_ServGetln(CmdBuf);
1714                 free(wikipage);
1715
1716                 rc = GetServerStatusMsg(CmdBuf, &Result, 0, 0);
1717
1718                 if (    (Result == 570)         /* invalid or missing recipient(s) */
1719                         || (Result == 550)      /* higher access required to send Internet mail */
1720                 ) {
1721                         /* These errors will have been displayed and are excusable */
1722                 }
1723                 else if (rc != 2) {     /* Any other error means that we cannot continue */
1724                         AppendImportantMessage(ChrPtr(CmdBuf) + 4, StrLength(CmdBuf) - 4);
1725                         FreeStrBuf(&CmdBuf);
1726                         fixview();
1727                         readloop(readnew, eUseDefault);
1728                         return;
1729                 }
1730                 FreeStrBuf(&CmdBuf);
1731         }
1732         if (recipient_required)
1733                 PutBstr(HKEY("__RCPTREQUIRED"), NewStrBufPlain(HKEY("1")));
1734         if (recipient_required || subject_required)
1735                 PutBstr(HKEY("__SUBJREQUIRED"), NewStrBufPlain(HKEY("1")));
1736
1737         begin_burst();
1738         output_headers(1, 0, 0, 0, 1, 0);
1739         if (WCC->CurRoom.defview == VIEW_WIKIMD)
1740                 DoTemplate(HKEY("edit_markdown_epic"), NULL, &NoCtx);
1741         else
1742                 DoTemplate(HKEY("edit_message"), NULL, &NoCtx);
1743         end_burst();
1744
1745         return;
1746 }
1747
1748 /*
1749  * delete a message
1750  */
1751 void delete_msg(void)
1752 {
1753         long msgid;
1754         StrBuf *Line;
1755
1756         msgid = lbstr("msgid");
1757         Line = NewStrBuf();
1758         if ((WC->CurRoom.RAFlags & UA_ISTRASH) != 0) {  /* Delete from Trash is a real delete */
1759                 serv_printf("DELE %ld", msgid);
1760         }
1761         else {                  /* Otherwise move it to Trash */
1762                 serv_printf("MOVE %ld|_TRASH_|0", msgid);
1763         }
1764
1765         StrBuf_ServGetln(Line);
1766         GetServerStatusMsg(Line, NULL, 1, 0);
1767
1768         fixview();
1769
1770         readloop(readnew, eUseDefault);
1771 }
1772
1773
1774 /*
1775  * move a message to another room
1776  */
1777 void move_msg(void)
1778 {
1779         long msgid;
1780
1781         msgid = lbstr("msgid");
1782
1783         if (havebstr("move_button")) {
1784                 StrBuf *Line;
1785                 serv_printf("MOVE %ld|%s", msgid, bstr("target_room"));
1786                 Line = NewStrBuf();
1787                 StrBuf_ServGetln(Line);
1788                 GetServerStatusMsg(Line, NULL, 1, 0);
1789                 FreeStrBuf(&Line);
1790         } else {
1791                 AppendImportantMessage(_("The message was not moved."), -1);
1792         }
1793
1794         fixview();
1795         readloop(readnew, eUseDefault);
1796 }
1797
1798
1799
1800 /*
1801  * Generic function to output an arbitrary MIME attachment from
1802  * message being composed
1803  *
1804  * partnum              The MIME part to be output
1805  * filename             Fake filename to give
1806  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1807  */
1808 void postpart(StrBuf *partnum, StrBuf *filename, int force_download)
1809 {
1810         void *vPart;
1811         StrBuf *content_type;
1812         wc_mime_attachment *part;
1813         int i;
1814
1815         i = StrToi(partnum);
1816         if (GetHash(WC->attachments, IKEY(i), &vPart) &&
1817             (vPart != NULL)) {
1818                 part = (wc_mime_attachment*) vPart;
1819                 if (force_download) {
1820                         content_type = NewStrBufPlain(HKEY("application/octet-stream"));
1821                 }
1822                 else {
1823                         content_type = NewStrBufDup(part->ContentType);
1824                 }
1825                 StrBufAppendBuf(WC->WBuf, part->Data, 0);
1826                 http_transmit_thing(ChrPtr(content_type), 0);
1827         } else {
1828                 hprintf("HTTP/1.1 404 %s\n", ChrPtr(partnum));
1829                 output_headers(0, 0, 0, 0, 0, 0);
1830                 hprintf("Content-Type: text/plain\r\n");
1831                 begin_burst();
1832                 wc_printf(_("An error occurred while retrieving this part: %s/%s\n"),
1833                         ChrPtr(partnum), ChrPtr(filename));
1834                 end_burst();
1835         }
1836         FreeStrBuf(&content_type);
1837 }
1838
1839
1840 /*
1841  * Generic function to output an arbitrary MIME part from an arbitrary
1842  * message number on the server.
1843  *
1844  * msgnum               Number of the item on the citadel server
1845  * partnum              The MIME part to be output
1846  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1847  */
1848 void mimepart(int force_download)
1849 {
1850         int detect_mime = 0;
1851         long msgnum;
1852         long ErrorDetail;
1853         StrBuf *att;
1854         wcsession *WCC = WC;
1855         StrBuf *Buf;
1856         off_t bytes;
1857         StrBuf *ContentType = NewStrBufPlain(HKEY("application/octet-stream"));
1858         const char *CT;
1859
1860         att = Buf = NewStrBuf();
1861         msgnum = StrBufExtract_long(WCC->Hdr->HR.ReqLine, 0, '/');
1862         StrBufExtract_token(att, WCC->Hdr->HR.ReqLine, 1, '/');
1863
1864         serv_printf("OPNA %ld|%s", msgnum, ChrPtr(att));
1865         StrBuf_ServGetln(Buf);
1866         if (GetServerStatus(Buf, &ErrorDetail) == 2) {
1867                 StrBufCutLeft(Buf, 4);
1868                 bytes = StrBufExtract_long(Buf, 0, '|');
1869                 StrBufExtract_token(ContentType, Buf, 3, '|');
1870                 CheckGZipCompressionAllowed (SKEY(ContentType));
1871                 if (force_download)
1872                 {
1873                         FlushStrBuf(ContentType);
1874                         detect_mime = 0;
1875                 }
1876                 else
1877                 {
1878                         if (!strcasecmp(ChrPtr(ContentType), "application/octet-stream"))
1879                         {
1880                                 StrBufExtract_token(Buf, WCC->Hdr->HR.ReqLine, 2, '/');
1881                                 CT = GuessMimeByFilename(SKEY(Buf));
1882                                 StrBufPlain(ContentType, CT, -1);
1883                         }
1884                         if (!strcasecmp(ChrPtr(ContentType), "application/octet-stream"))
1885                         {
1886                                 detect_mime = 1;
1887                         }
1888                 }
1889                 serv_read_binary_to_http(ContentType, bytes, 0, detect_mime);
1890
1891                 serv_read_binary(WCC->WBuf, bytes, Buf);
1892                 serv_puts("CLOS");
1893                 StrBuf_ServGetln(Buf);
1894                 CT = ChrPtr(ContentType);
1895         } else {
1896                 StrBufCutLeft(Buf, 4);
1897                 switch (ErrorDetail) {
1898                 default:
1899                 case ERROR + MESSAGE_NOT_FOUND:
1900                         hprintf("HTTP/1.1 404 %s\n", ChrPtr(Buf));
1901                         break;
1902                 case ERROR + NOT_LOGGED_IN:
1903                         hprintf("HTTP/1.1 401 %s\n", ChrPtr(Buf));
1904                         break;
1905
1906                 case ERROR + HIGHER_ACCESS_REQUIRED:
1907                         hprintf("HTTP/1.1 403 %s\n", ChrPtr(Buf));
1908                         break;
1909                 case ERROR + INTERNAL_ERROR:
1910                 case ERROR + TOO_BIG:
1911                         hprintf("HTTP/1.1 500 %s\n", ChrPtr(Buf));
1912                         break;
1913                 }
1914
1915                 hprintf("Pragma: no-cache\r\n"
1916                         "Cache-Control: no-store\r\n"
1917                         "Expires: -1\r\n"
1918                 );
1919
1920                 hprintf("Content-Type: text/plain\r\n");
1921                 begin_burst();
1922                 wc_printf(_("An error occurred while retrieving this part: %s\n"),
1923                         ChrPtr(Buf));
1924                 end_burst();
1925         }
1926         FreeStrBuf(&ContentType);
1927         FreeStrBuf(&Buf);
1928 }
1929
1930
1931 /*
1932  * Read any MIME part of a message, from the server, into memory.
1933  */
1934 StrBuf *load_mimepart(long msgnum, char *partnum)
1935 {
1936         off_t bytes;
1937         StrBuf *Buf;
1938
1939         Buf = NewStrBuf();
1940         serv_printf("DLAT %ld|%s", msgnum, partnum);
1941         StrBuf_ServGetln(Buf);
1942         if (GetServerStatus(Buf, NULL) == 6) {
1943                 StrBufCutLeft(Buf, 4);
1944                 bytes = StrBufExtract_long(Buf, 0, '|');
1945                 FreeStrBuf(&Buf);
1946                 Buf = NewStrBuf();
1947                 StrBuf_ServGetBLOBBuffered(Buf, bytes);
1948                 return(Buf);
1949         }
1950         else {
1951                 FreeStrBuf(&Buf);
1952                 return(NULL);
1953         }
1954 }
1955
1956 /*
1957  * Read any MIME part of a message, from the server, into memory.
1958  */
1959 void MimeLoadData(wc_mime_attachment *Mime)
1960 {
1961         StrBuf *Buf;
1962         const char *Ptr;
1963         off_t bytes;
1964         /* TODO: is there a chance the content type is different from the one we know? */
1965
1966         serv_printf("DLAT %ld|%s", Mime->msgnum, ChrPtr(Mime->PartNum));
1967         Buf = NewStrBuf();
1968         StrBuf_ServGetln(Buf);
1969         if (GetServerStatus(Buf, NULL) == 6) {
1970                 Ptr = &(ChrPtr(Buf)[4]);
1971                 bytes = StrBufExtractNext_long(Buf, &Ptr, '|');
1972                 StrBufSkip_NTokenS(Buf, &Ptr, '|', 3);  /* filename, cbtype, mimetype */
1973                 if (Mime->Charset == NULL) Mime->Charset = NewStrBuf();
1974                 StrBufExtract_NextToken(Mime->Charset, Buf, &Ptr, '|');
1975
1976                 if (Mime->Data == NULL)
1977                         Mime->Data = NewStrBufPlain(NULL, bytes);
1978                 StrBuf_ServGetBLOBBuffered(Mime->Data, bytes);
1979         }
1980         else {
1981                 FlushStrBuf(Mime->Data);
1982                 /* TODO XImportant message */
1983         }
1984         FreeStrBuf(&Buf);
1985 }
1986
1987
1988 void view_mimepart(void) {
1989         mimepart(0);
1990 }
1991
1992 void download_mimepart(void) {
1993         mimepart(1);
1994 }
1995
1996 void view_postpart(void) {
1997         StrBuf *filename = NewStrBuf();
1998         StrBuf *partnum = NewStrBuf();
1999
2000         StrBufExtract_token(partnum, WC->Hdr->HR.ReqLine, 0, '/');
2001         StrBufExtract_token(filename, WC->Hdr->HR.ReqLine, 1, '/');
2002
2003         postpart(partnum, filename, 0);
2004
2005         FreeStrBuf(&filename);
2006         FreeStrBuf(&partnum);
2007 }
2008
2009 void download_postpart(void) {
2010         StrBuf *filename = NewStrBuf();
2011         StrBuf *partnum = NewStrBuf();
2012
2013         StrBufExtract_token(partnum, WC->Hdr->HR.ReqLine, 0, '/');
2014         StrBufExtract_token(filename, WC->Hdr->HR.ReqLine, 1, '/');
2015
2016         postpart(partnum, filename, 1);
2017
2018         FreeStrBuf(&filename);
2019         FreeStrBuf(&partnum);
2020 }
2021
2022
2023
2024 void show_num_attachments(void) {
2025         wc_printf("%d", GetCount(WC->attachments));
2026 }
2027
2028
2029 void h_readnew(void) { readloop(readnew, eUseDefault);}
2030 void h_readold(void) { readloop(readold, eUseDefault);}
2031 void h_readfwd(void) { readloop(readfwd, eUseDefault);}
2032 void h_headers(void) { readloop(headers, eUseDefault);}
2033 void h_do_search(void) { readloop(do_search, eUseDefault);}
2034 void h_readgt(void) { readloop(readgt, eUseDefault);}
2035 void h_readlt(void) { readloop(readlt, eUseDefault);}
2036
2037
2038
2039 /* Output message list in JSON format */
2040 void jsonMessageList(void) {
2041         StrBuf *View = NewStrBuf();
2042         const StrBuf *room = sbstr("room");
2043         long oper = (havebstr("query")) ? do_search : readnew;
2044         StrBufPrintf(View, "%d", VIEW_JSON_LIST);
2045         putbstr("view", View);;
2046         gotoroom(room);
2047         readloop(oper, eUseDefault);
2048 }
2049
2050 void RegisterReadLoopHandlerset(
2051         int RoomType,
2052         GetParamsGetServerCall_func GetParamsGetServerCall,
2053         PrintViewHeader_func PrintPageHeader,
2054         PrintViewHeader_func PrintViewHeader,
2055         load_msg_ptrs_detailheaders LH,
2056         LoadMsgFromServer_func LoadMsgFromServer,
2057         RenderView_or_Tail_func RenderView_or_Tail,
2058         View_Cleanup_func ViewCleanup
2059         )
2060 {
2061         RoomRenderer *Handler;
2062
2063         Handler = (RoomRenderer*) malloc(sizeof(RoomRenderer));
2064
2065         Handler->RoomType = RoomType;
2066         Handler->GetParamsGetServerCall = GetParamsGetServerCall;
2067         Handler->PrintPageHeader = PrintPageHeader;
2068         Handler->PrintViewHeader = PrintViewHeader;
2069         Handler->LoadMsgFromServer = LoadMsgFromServer;
2070         Handler->RenderView_or_Tail = RenderView_or_Tail;
2071         Handler->ViewCleanup = ViewCleanup;
2072         Handler->LHParse = LH;
2073
2074         Put(ReadLoopHandler, IKEY(RoomType), Handler, NULL);
2075 }
2076
2077 void
2078 InitModule_MSG
2079 (void)
2080 {
2081         RegisterPreference("use_sig",
2082                            _("Attach signature to email messages?"),
2083                            PRF_YESNO,
2084                            NULL);
2085         RegisterPreference("signature", _("Use this signature:"), PRF_QP_STRING, NULL);
2086         RegisterPreference("default_header_charset",
2087                            _("Default character set for email headers:"),
2088                            PRF_STRING,
2089                            NULL);
2090         RegisterPreference("defaultfrom", _("Preferred email address"), PRF_STRING, NULL);
2091         RegisterPreference("defaultname",
2092                            _("Preferred display name for email messages"),
2093                            PRF_STRING,
2094                            NULL);
2095         RegisterPreference("defaulthandle",
2096                            _("Preferred display name for bulletin board posts"),
2097                            PRF_STRING,
2098                            NULL);
2099         RegisterPreference("mailbox",_("Mailbox view mode"), PRF_STRING, NULL);
2100
2101         WebcitAddUrlHandler(HKEY("readnew"), "", 0, h_readnew, ANONYMOUS|NEED_URL);
2102         WebcitAddUrlHandler(HKEY("readold"), "", 0, h_readold, ANONYMOUS|NEED_URL);
2103         WebcitAddUrlHandler(HKEY("readfwd"), "", 0, h_readfwd, ANONYMOUS|NEED_URL);
2104         WebcitAddUrlHandler(HKEY("headers"), "", 0, h_headers, NEED_URL);
2105         WebcitAddUrlHandler(HKEY("readgt"), "", 0, h_readgt, ANONYMOUS|NEED_URL);
2106         WebcitAddUrlHandler(HKEY("readlt"), "", 0, h_readlt, ANONYMOUS|NEED_URL);
2107         WebcitAddUrlHandler(HKEY("do_search"), "", 0, h_do_search, 0);
2108         WebcitAddUrlHandler(HKEY("display_enter"), "", 0, display_enter, 0);
2109         WebcitAddUrlHandler(HKEY("post"), "", 0, post_message, PROHIBIT_STARTPAGE);
2110         WebcitAddUrlHandler(HKEY("move_msg"), "", 0, move_msg, PROHIBIT_STARTPAGE);
2111         WebcitAddUrlHandler(HKEY("delete_msg"), "", 0, delete_msg, PROHIBIT_STARTPAGE);
2112         WebcitAddUrlHandler(HKEY("msg"), "", 0, embed_message, NEED_URL);
2113         WebcitAddUrlHandler(HKEY("message"), "", 0, handle_one_message, NEED_URL|XHTTP_COMMANDS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
2114         WebcitAddUrlHandler(HKEY("printmsg"), "", 0, print_message, NEED_URL);
2115         WebcitAddUrlHandler(HKEY("msgheaders"), "", 0, display_headers, NEED_URL);
2116
2117         WebcitAddUrlHandler(HKEY("mimepart"), "", 0, view_mimepart, NEED_URL);
2118         WebcitAddUrlHandler(HKEY("mimepart_download"), "", 0, download_mimepart, NEED_URL);
2119         WebcitAddUrlHandler(HKEY("postpart"), "", 0, view_postpart, NEED_URL|PROHIBIT_STARTPAGE);
2120         WebcitAddUrlHandler(HKEY("postpart_download"), "", 0, download_postpart, NEED_URL|PROHIBIT_STARTPAGE);
2121         WebcitAddUrlHandler(HKEY("upload_attachment"), "", 0, upload_attachment, AJAX);
2122         WebcitAddUrlHandler(HKEY("remove_attachment"), "", 0, remove_attachment, AJAX);
2123         WebcitAddUrlHandler(HKEY("show_num_attachments"), "", 0, show_num_attachments, AJAX);
2124
2125         /* json */
2126         WebcitAddUrlHandler(HKEY("roommsgs"), "", 0, jsonMessageList,0);
2127
2128         l_subj = FourHash("subj", 4);
2129         l_wefw = FourHash("wefw", 4);
2130         l_msgn = FourHash("msgn", 4);
2131         l_from = FourHash("from", 4);
2132         l_rcpt = FourHash("rcpt", 4);
2133         l_cccc = FourHash("cccc", 4);
2134         l_replyto = FourHash("rep2", 4);
2135         l_node = FourHash("node", 4);
2136         l_rfca = FourHash("rfca", 4);
2137         l_nvto = FourHash("nvto", 4);
2138
2139         return ;
2140 }
2141
2142 void
2143 SessionDetachModule_MSG
2144 (wcsession *sess)
2145 {
2146         DeleteHash(&sess->summ);
2147 }