webcit/messages.c

   1 /*
   2  * Functions which deal with the fetching and displaying of messages.
   3  *
   4  * Copyright (c) 1996-2011 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 as
   8  * published by the Free Software Foundation; either version 3 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19  */
  20
  21 #include "webcit.h"
  22 #include "webserver.h"
  23 #include "groupdav.h"
  24 #include "calendar.h"
  25
  26 HashList *MsgHeaderHandler = NULL;
  27 HashList *MsgEvaluators = NULL;
  28 HashList *MimeRenderHandler = NULL;
  29 HashList *ReadLoopHandler = NULL;
  30 int dbg_analyze_msg = 0;
  31
  32 #define SUBJ_COL_WIDTH_PCT              50      /* Mailbox view column width */
  33 #define SENDER_COL_WIDTH_PCT            30      /* Mailbox view column width */
  34 #define DATE_PLUS_BUTTONS_WIDTH_PCT     20      /* Mailbox view column width */
  35
  36 void jsonMessageListHdr(void);
  37
  38 void display_enter(void);
  39
  40 typedef void (*MsgPartEvaluatorFunc)(message_summary *Sum, StrBuf *Buf);
  41
  42 typedef struct _MsgPartEvaluatorStruct {
  43         MsgPartEvaluatorFunc f;
  44 } MsgPartEvaluatorStruct;
  45
  46 int load_message(message_summary *Msg,
  47                  StrBuf *FoundCharset,
  48                  StrBuf **Error)
  49 {
  50         StrBuf *Buf;
  51         StrBuf *HdrToken;
  52         headereval *Hdr;
  53         void *vHdr;
  54         char buf[SIZ];
  55         int Done = 0;
  56         int state=0;
  57
  58         Buf = NewStrBuf();
  59         if (Msg->PartNum != NULL) {
  60                 serv_printf("MSG4 %ld|%s", Msg->msgnum, ChrPtr(Msg->PartNum));
  61         }
  62         else {
  63                 serv_printf("MSG4 %ld", Msg->msgnum);
  64         }
  65
  66         StrBuf_ServGetln(Buf);
  67         if (GetServerStatus(Buf, NULL) != 1) {
  68                 *Error = NewStrBuf();
  69                 StrBufAppendPrintf(*Error, "<strong>");
  70                 StrBufAppendPrintf(*Error, _("ERROR:"));
  71                 StrBufAppendPrintf(*Error, "</strong> %s<br>\n", &buf[4]);
  72                 FreeStrBuf(&Buf);
  73                 return 0;
  74         }
  75
  76         /* begin everythingamundo table */
  77         HdrToken = NewStrBuf();
  78         while (!Done && StrBuf_ServGetln(Buf)>=0) {
  79                 if ( (StrLength(Buf)==3) &&
  80                     !strcmp(ChrPtr(Buf), "000"))
  81                 {
  82                         Done = 1;
  83                         if (state < 2) {
  84                                 if (Msg->MsgBody->Data == NULL)
  85                                         Msg->MsgBody->Data = NewStrBuf();
  86                                 Msg->MsgBody->ContentType = NewStrBufPlain(HKEY("text/html"));
  87                                 StrBufAppendPrintf(Msg->MsgBody->Data, "<div><i>");
  88                                 StrBufAppendPrintf(Msg->MsgBody->Data, _("Empty message"));
  89                                 StrBufAppendPrintf(Msg->MsgBody->Data, "</i><br><br>\n");
  90                                 StrBufAppendPrintf(Msg->MsgBody->Data, "</div>\n");
  91                         }
  92                         break;
  93                 }
  94                 switch (state) {
  95                 case 0:/* Citadel Message Headers */
  96                         if (StrLength(Buf) == 0) {
  97                                 state ++;
  98                                 break;
  99                         }
 100                         StrBufExtract_token(HdrToken, Buf, 0, '=');
 101                         StrBufCutLeft(Buf, StrLength(HdrToken) + 1);
 102
 103                         /* look up one of the examine_* functions to parse the content */
 104                         if (GetHash(MsgHeaderHandler, SKEY(HdrToken), &vHdr) &&
 105                             (vHdr != NULL)) {
 106                                 Hdr = (headereval*)vHdr;
 107                                 Hdr->evaluator(Msg, Buf, FoundCharset);
 108                                 if (Hdr->Type == 1) {
 109                                         state++;
 110                                 }
 111                         }/* TODO:
 112                         else LogError(Target,
 113                                       __FUNCTION__,
 114                                       "don't know how to handle message header[%s]\n",
 115                                       ChrPtr(HdrToken));
 116                          */
 117                         break;
 118                 case 1:/* Message Mime Header */
 119                         if (StrLength(Buf) == 0) {
 120                                 state++;
 121                                 if (Msg->MsgBody->ContentType == NULL)
 122                                         /* end of header or no header? */
 123                                         Msg->MsgBody->ContentType = NewStrBufPlain(HKEY("text/plain"));
 124                                  /* usual end of mime header */
 125                         }
 126                         else
 127                         {
 128                                 StrBufExtract_token(HdrToken, Buf, 0, ':');
 129                                 if (StrLength(HdrToken) > 0) {
 130                                         StrBufCutLeft(Buf, StrLength(HdrToken) + 1);
 131                                         /* the examine*'s know how to do with mime headers too... */
 132                                         if (GetHash(MsgHeaderHandler, SKEY(HdrToken), &vHdr) &&
 133                                             (vHdr != NULL)) {
 134                                                 Hdr = (headereval*)vHdr;
 135                                                 Hdr->evaluator(Msg, Buf, FoundCharset);
 136                                         }
 137                                         break;
 138                                 }
 139                         }
 140                 case 2: /* Message Body */
 141
 142                         if (Msg->MsgBody->size_known > 0) {
 143                                 StrBuf_ServGetBLOBBuffered(Msg->MsgBody->Data, Msg->MsgBody->length);
 144                                 state ++;
 145                                 /*/ todo: check next line, if not 000, append following lines */
 146                         }
 147                         else if (1){
 148                                 if (StrLength(Msg->MsgBody->Data) > 0)
 149                                         StrBufAppendBufPlain(Msg->MsgBody->Data, "\n", 1, 0);
 150                                 StrBufAppendBuf(Msg->MsgBody->Data, Buf, 0);
 151                         }
 152                         break;
 153                 case 3:
 154                         StrBufAppendBuf(Msg->MsgBody->Data, Buf, 0);
 155                         break;
 156                 }
 157         }
 158
 159         if (Msg->AllAttach == NULL)
 160                 Msg->AllAttach = NewHash(1,NULL);
 161         /* now we put the body mimepart we read above into the mimelist */
 162         Put(Msg->AllAttach, SKEY(Msg->MsgBody->PartNum), Msg->MsgBody, DestroyMime);
 163
 164         FreeStrBuf(&Buf);
 165         FreeStrBuf(&HdrToken);
 166         return 1;
 167 }
 168
 169
 170
 171 /*
 172  * I wanna SEE that message!
 173  *
 174  * msgnum               Message number to display
 175  * printable_view       Nonzero to display a printable view
 176  * section              Optional for encapsulated message/rfc822 submessage
 177  */
 178 int read_message(StrBuf *Target, const char *tmpl, long tmpllen, long msgnum, const StrBuf *PartNum, const StrBuf **OutMime)
 179 {
 180         StrBuf *Buf;
 181         StrBuf *FoundCharset;
 182         HashPos  *it;
 183         void *vMime;
 184         message_summary *Msg = NULL;
 185         void *vHdr;
 186         long len;
 187         const char *Key;
 188         WCTemplputParams SubTP;
 189         StrBuf *Error = NULL;
 190
 191         Buf = NewStrBuf();
 192         FoundCharset = NewStrBuf();
 193         Msg = (message_summary *)malloc(sizeof(message_summary));
 194         memset(Msg, 0, sizeof(message_summary));
 195         Msg->msgnum = msgnum;
 196         Msg->PartNum = PartNum;
 197         Msg->MsgBody =  (wc_mime_attachment*) malloc(sizeof(wc_mime_attachment));
 198         memset(Msg->MsgBody, 0, sizeof(wc_mime_attachment));
 199         Msg->MsgBody->msgnum = msgnum;
 200
 201         if (!load_message(Msg, FoundCharset, &Error)) {
 202                 StrBufAppendBuf(Target, Error, 0);
 203                 FreeStrBuf(&Error);
 204         }
 205
 206         /* Extract just the content-type (omit attributes such as "charset") */
 207         StrBufExtract_token(Buf, Msg->MsgBody->ContentType, 0, ';');
 208         StrBufTrim(Buf);
 209         StrBufLowerCase(Buf);
 210
 211         /* Locate a renderer capable of converting this MIME part into HTML */
 212         if (GetHash(MimeRenderHandler, SKEY(Buf), &vHdr) &&
 213             (vHdr != NULL)) {
 214                 RenderMimeFuncStruct *Render;
 215                 Render = (RenderMimeFuncStruct*)vHdr;
 216                 Render->f(Msg->MsgBody, NULL, FoundCharset);
 217         }
 218
 219         if (StrLength(Msg->reply_references)> 0) {
 220                 /* Trim down excessively long lists of thread references.  We eliminate the
 221                  * second one in the list so that the thread root remains intact.
 222                  */
 223                 int rrtok = num_tokens(ChrPtr(Msg->reply_references), '|');
 224                 int rrlen = StrLength(Msg->reply_references);
 225                 if ( ((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10) ) {
 226                         StrBufRemove_token(Msg->reply_references, 1, '|');
 227                 }
 228         }
 229
 230         /* now check if we need to translate some mimeparts, and remove the duplicate */
 231         it = GetNewHashPos(Msg->AllAttach, 0);
 232         while (GetNextHashPos(Msg->AllAttach, it, &len, &Key, &vMime) &&
 233                (vMime != NULL)) {
 234                 wc_mime_attachment *Mime = (wc_mime_attachment*) vMime;
 235                 evaluate_mime_part(Msg, Mime);
 236         }
 237         DeleteHashPos(&it);
 238         memset(&SubTP, 0, sizeof(WCTemplputParams));
 239         SubTP.Filter.ContextType = CTX_MAILSUM;
 240         SubTP.Context = Msg;
 241         *OutMime = DoTemplate(tmpl, tmpllen, Target, &SubTP);
 242
 243         DestroyMessageSummary(Msg);
 244         FreeStrBuf(&FoundCharset);
 245         FreeStrBuf(&Buf);
 246         return 1;
 247 }
 248
 249
 250 long
 251 HttpStatus(long CitadelStatus)
 252 {
 253         long httpstatus = 502;
 254
 255         switch (MAJORCODE(CitadelStatus))
 256         {
 257         case LISTING_FOLLOWS:
 258         case CIT_OK:
 259                 httpstatus = 201;
 260                 break;
 261         case ERROR:
 262                 switch (MINORCODE(CitadelStatus))
 263                 {
 264                 case INTERNAL_ERROR:
 265                         httpstatus = 403;
 266                         break;
 267
 268                 case TOO_BIG:
 269                 case ILLEGAL_VALUE:
 270                 case HIGHER_ACCESS_REQUIRED:
 271                 case MAX_SESSIONS_EXCEEDED:
 272                 case RESOURCE_BUSY:
 273                 case RESOURCE_NOT_OPEN:
 274                 case NOT_HERE:
 275                 case INVALID_FLOOR_OPERATION:
 276                 case FILE_NOT_FOUND:
 277                 case ROOM_NOT_FOUND:
 278                         httpstatus = 409;
 279                         break;
 280
 281                 case MESSAGE_NOT_FOUND:
 282                 case ALREADY_EXISTS:
 283                         httpstatus = 403;
 284                         break;
 285
 286                 case NO_SUCH_SYSTEM:
 287                         httpstatus = 502;
 288                         break;
 289
 290                 default:
 291                 case CMD_NOT_SUPPORTED:
 292                 case PASSWORD_REQUIRED:
 293                 case ALREADY_LOGGED_IN:
 294                 case USERNAME_REQUIRED:
 295                 case NOT_LOGGED_IN:
 296                 case SERVER_SHUTTING_DOWN:
 297                 case NO_SUCH_USER:
 298                 case ASYNC_GEXP:
 299                         httpstatus = 502;
 300                         break;
 301                 }
 302                 break;
 303
 304         default:
 305         case BINARY_FOLLOWS:
 306         case SEND_BINARY:
 307         case START_CHAT_MODE:
 308         case ASYNC_MSG:
 309         case MORE_DATA:
 310         case SEND_LISTING:
 311                 httpstatus = 502; /* aeh... whut? */
 312                 break;
 313         }
 314
 315         return httpstatus;
 316 }
 317
 318 /*
 319  * Unadorned HTML output of an individual message, suitable
 320  * for placing in a hidden iframe, for printing, or whatever
 321  */
 322 void handle_one_message(void)
 323 {
 324         long CitStatus;
 325         int CopyMessage = 0;
 326         const StrBuf *Destination;
 327         void *vLine;
 328         const StrBuf *Mime;
 329         long msgnum = 0L;
 330         wcsession *WCC = WC;
 331         const StrBuf *Tmpl;
 332         StrBuf *CmdBuf = NULL;
 333         const char *pMsg;
 334
 335
 336         pMsg = strchr(ChrPtr(WCC->Hdr->HR.ReqLine), '/');
 337         if (pMsg == NULL) {
 338                 HttpStatus(CitStatus);
 339                 return;
 340         }
 341
 342         msgnum = atol(pMsg + 1);
 343         StrBufCutAt(WCC->Hdr->HR.ReqLine, 0, pMsg);
 344         gotoroom(WCC->Hdr->HR.ReqLine);
 345         switch (WCC->Hdr->HR.eReqType)
 346         {
 347         case eGET:
 348         case ePOST:
 349                 Tmpl = sbstr("template");
 350                 if (StrLength(Tmpl) > 0)
 351                         read_message(WCC->WBuf, SKEY(Tmpl), msgnum, NULL, &Mime);
 352                 else
 353                         read_message(WCC->WBuf, HKEY("view_message"), msgnum, NULL, &Mime);
 354                 http_transmit_thing(ChrPtr(Mime), 0);
 355                 break;
 356         case eDELETE:
 357                 CmdBuf = NewStrBuf ();
 358                 if ((WCC->CurRoom.RAFlags & UA_ISTRASH) != 0) { /* Delete from Trash is a real delete */
 359                         serv_printf("DELE %ld", msgnum);
 360                 }
 361                 else {                  /* Otherwise move it to Trash */
 362                         serv_printf("MOVE %ld|_TRASH_|0", msgnum);
 363                 }
 364                 StrBuf_ServGetln(CmdBuf);
 365                 FlushStrBuf(WCC->ImportantMsg);
 366                 StrBufAppendBuf(WCC->ImportantMsg, CmdBuf, 4);
 367                 GetServerStatus(CmdBuf, &CitStatus);
 368                 HttpStatus(CitStatus);
 369                 break;
 370         case eCOPY:
 371                 CopyMessage = 1;
 372         case eMOVE:
 373                 if (GetHash(WCC->Hdr->HTTPHeaders, HKEY("DESTINATION"), &vLine) &&
 374                     (vLine!=NULL)) {
 375                         Destination = (StrBuf*) vLine;
 376                         serv_printf("MOVE %ld|%s|%d", msgnum, ChrPtr(Destination), CopyMessage);
 377                         StrBuf_ServGetln(CmdBuf);
 378                         FlushStrBuf(WCC->ImportantMsg);
 379                         StrBufAppendBuf(WCC->ImportantMsg, CmdBuf, 4);
 380                         GetServerStatus(CmdBuf, &CitStatus);
 381                         HttpStatus(CitStatus);
 382                 }
 383                 else
 384                         HttpStatus(500);
 385                 break;
 386         default:
 387                 break;
 388
 389         }
 390 }
 391
 392
 393 /*
 394  * Unadorned HTML output of an individual message, suitable
 395  * for placing in a hidden iframe, for printing, or whatever
 396  */
 397 void embed_message(void) {
 398         const StrBuf *Mime;
 399         long msgnum = 0L;
 400         wcsession *WCC = WC;
 401         const StrBuf *Tmpl;
 402         StrBuf *CmdBuf = NULL;
 403
 404         msgnum = StrBufExtract_long(WCC->Hdr->HR.ReqLine, 0, '/');
 405         switch (WCC->Hdr->HR.eReqType)
 406         {
 407         case eGET:
 408         case ePOST:
 409                 Tmpl = sbstr("template");
 410                 if (StrLength(Tmpl) > 0)
 411                         read_message(WCC->WBuf, SKEY(Tmpl), msgnum, NULL, &Mime);
 412                 else
 413                         read_message(WCC->WBuf, HKEY("view_message"), msgnum, NULL, &Mime);
 414                 http_transmit_thing(ChrPtr(Mime), 0);
 415                 break;
 416         case eDELETE:
 417                 CmdBuf = NewStrBuf ();
 418                 if ((WCC->CurRoom.RAFlags & UA_ISTRASH) != 0) { /* Delete from Trash is a real delete */
 419                         serv_printf("DELE %ld", msgnum);
 420                 }
 421                 else {                  /* Otherwise move it to Trash */
 422                         serv_printf("MOVE %ld|_TRASH_|0", msgnum);
 423                 }
 424                 StrBuf_ServGetln(CmdBuf);
 425                 FlushStrBuf(WCC->ImportantMsg);
 426                 StrBufAppendBuf(WCC->ImportantMsg, CmdBuf, 4);
 427                 break;
 428         default:
 429                 break;
 430
 431         }
 432 }
 433
 434
 435 /*
 436  * Printable view of a message
 437  */
 438 void print_message(void) {
 439         long msgnum = 0L;
 440         const StrBuf *Mime;
 441
 442         msgnum = StrBufExtract_long(WC->Hdr->HR.ReqLine, 0, '/');
 443         output_headers(0, 0, 0, 0, 0, 0);
 444
 445         hprintf("Content-type: text/html\r\n"
 446                 "Server: " PACKAGE_STRING "\r\n"
 447                 "Connection: close\r\n");
 448
 449         begin_burst();
 450
 451         read_message(WC->WBuf, HKEY("view_message_print"), msgnum, NULL, &Mime);
 452
 453         wDumpContent(0);
 454 }
 455
 456 /*
 457  * Display a message's headers
 458  */
 459 void display_headers(void) {
 460         long msgnum = 0L;
 461         char buf[1024];
 462
 463         msgnum = StrBufExtract_long(WC->Hdr->HR.ReqLine, 0, '/');
 464         output_headers(0, 0, 0, 0, 0, 0);
 465
 466         hprintf("Content-type: text/plain\r\n"
 467                 "Server: %s\r\n"
 468                 "Connection: close\r\n",
 469                 PACKAGE_STRING);
 470         begin_burst();
 471
 472         serv_printf("MSG2 %ld|3", msgnum);
 473         serv_getln(buf, sizeof buf);
 474         if (buf[0] == '1') {
 475                 while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 476                         wc_printf("%s\n", buf);
 477                 }
 478         }
 479
 480         wDumpContent(0);
 481 }
 482
 483
 484 message_summary *ReadOneMessageSummary(StrBuf *RawMessage, const char *DefaultSubject, long MsgNum)
 485 {
 486         void                 *vEval;
 487         MsgPartEvaluatorStruct  *Eval;
 488         message_summary      *Msg;
 489         StrBuf *Buf;
 490         const char *buf;
 491         const char *ebuf;
 492         int nBuf;
 493         long len;
 494
 495         Buf = NewStrBuf();
 496
 497         serv_printf("MSG0 %ld|1", MsgNum);      /* ask for headers only */
 498
 499         StrBuf_ServGetln(Buf);
 500         if (GetServerStatus(Buf, NULL) == 1) {
 501                 FreeStrBuf(&Buf);
 502                 return NULL;
 503         }
 504
 505         Msg = (message_summary*)malloc(sizeof(message_summary));
 506         memset(Msg, 0, sizeof(message_summary));
 507         while (len = StrBuf_ServGetln(Buf),
 508                (len >= 0) &&
 509                ((len != 3)  ||
 510                 strcmp(ChrPtr(Buf), "000")))
 511         {
 512                 buf = ChrPtr(Buf);
 513                 ebuf = strchr(ChrPtr(Buf), '=');
 514                 nBuf = ebuf - buf;
 515                 if (GetHash(MsgEvaluators, buf, nBuf, &vEval) && vEval != NULL) {
 516                         Eval = (MsgPartEvaluatorStruct*) vEval;
 517                         StrBufCutLeft(Buf, nBuf + 1);
 518                         Eval->f(Msg, Buf);
 519                 }
 520                 else syslog(1, "Don't know how to handle Message Headerline [%s]", ChrPtr(Buf));
 521         }
 522         return Msg;
 523 }
 524
 525
 526
 527
 528
 529 /*
 530  * load message pointers from the server for a "read messages" operation
 531  *
 532  * servcmd:             the citadel command to send to the citserver
 533  */
 534 int load_msg_ptrs(const char *servcmd,
 535                   SharedMessageStatus *Stat,
 536                   load_msg_ptrs_detailheaders LH)
 537 {
 538         wcsession *WCC = WC;
 539         message_summary *Msg;
 540         StrBuf *Buf, *Buf2;
 541         long len;
 542         int n;
 543         int skipit;
 544         const char *Ptr = NULL;
 545
 546         Stat->lowest_found = LONG_MAX;
 547         Stat->highest_found = LONG_MIN;
 548
 549         if (WCC->summ != NULL) {
 550                 DeleteHash(&WCC->summ);
 551         }
 552         WCC->summ = NewHash(1, Flathash);
 553
 554         Buf = NewStrBuf();
 555         serv_puts(servcmd);
 556         StrBuf_ServGetln(Buf);
 557         if (GetServerStatus(Buf, NULL) != 1) {
 558                 FreeStrBuf(&Buf);
 559                 return (Stat->nummsgs);
 560         }
 561         Buf2 = NewStrBuf();
 562         while (len = StrBuf_ServGetln(Buf),
 563                ((len >= 0) &&
 564                 ((len != 3) ||
 565                  strcmp(ChrPtr(Buf), "000")!= 0)))
 566         {
 567                 if (Stat->nummsgs < Stat->maxload) {
 568                         skipit = 0;
 569                         Ptr = NULL;
 570                         Msg = (message_summary*)malloc(sizeof(message_summary));
 571                         memset(Msg, 0, sizeof(message_summary));
 572
 573                         Msg->msgnum = StrBufExtractNext_long(Buf, &Ptr, '|');
 574                         Msg->date = StrBufExtractNext_long(Buf, &Ptr, '|');
 575
 576                         if (Stat->nummsgs == 0) {
 577                                 if (Msg->msgnum < Stat->lowest_found) {
 578                                         Stat->lowest_found = Msg->msgnum;
 579                                 }
 580                                 if (Msg->msgnum > Stat->highest_found) {
 581                                         Stat->highest_found = Msg->msgnum;
 582                                 }
 583                         }
 584
 585                         if ((Msg->msgnum == 0) && (StrLength(Buf) < 32)) {
 586                                 free(Msg);
 587                                 continue;
 588                         }
 589
 590                         /*
 591                          * as citserver probably gives us messages in forward date sorting
 592                          * nummsgs should be the same order as the message date.
 593                          */
 594                         if (Msg->date == 0) {
 595                                 Msg->date = Stat->nummsgs;
 596                                 if (StrLength(Buf) < 32)
 597                                         skipit = 1;
 598                         }
 599                         if ((!skipit) && (LH != NULL)) {
 600                                 if (!LH(Buf, &Ptr, Msg, Buf2)){
 601                                         free(Msg);
 602                                         continue;
 603                                 }
 604                         }
 605                         n = Msg->msgnum;
 606                         Put(WCC->summ, (const char *)&n, sizeof(n), Msg, DestroyMessageSummary);
 607                 }
 608                 Stat->nummsgs++;
 609         }
 610         FreeStrBuf(&Buf2);
 611         FreeStrBuf(&Buf);
 612         return (Stat->nummsgs);
 613 }
 614
 615
 616
 617 /**
 618  * \brief sets FlagToSet for each of ScanMe that appears in MatchMSet
 619  * \param ScanMe List of BasicMsgStruct to be searched it MatchSet
 620  * \param MatchMSet MSet we want to flag
 621  * \param FlagToSet Flag to set on each BasicMsgStruct->Flags if in MSet
 622  */
 623 void SetFlagsFromMSet(HashList *ScanMe, MSet *MatchMSet, int FlagToSet, int Reverse)
 624 {
 625         const char *HashKey;
 626         long HKLen;
 627         HashPos *at;
 628         void *vMsg;
 629         message_summary *Msg;
 630
 631         at = GetNewHashPos(ScanMe, 0);
 632         while (GetNextHashPos(ScanMe, at, &HKLen, &HashKey, &vMsg)) {
 633                 /* Are you a new message, or an old message? */
 634                 Msg = (message_summary*) vMsg;
 635                 if (Reverse && IsInMSetList(MatchMSet, Msg->msgnum)) {
 636                         Msg->Flags = Msg->Flags | FlagToSet;
 637                 }
 638                 else if (!Reverse && !IsInMSetList(MatchMSet, Msg->msgnum)) {
 639                         Msg->Flags = Msg->Flags | FlagToSet;
 640                 }
 641         }
 642         DeleteHashPos(&at);
 643 }
 644
 645
 646 void load_seen_flags(void)
 647 {
 648         StrBuf *OldMsg;
 649         wcsession *WCC = WC;
 650         MSet *MatchMSet;
 651
 652         OldMsg = NewStrBuf();
 653         serv_puts("GTSN");
 654         StrBuf_ServGetln(OldMsg);
 655         if (GetServerStatus(OldMsg, NULL) == 2) {
 656                 StrBufCutLeft(OldMsg, 4);
 657         }
 658         else {
 659                 FreeStrBuf(&OldMsg);
 660                 return;
 661         }
 662
 663         if (ParseMSet(&MatchMSet, OldMsg))
 664         {
 665                 SetFlagsFromMSet(WCC->summ, MatchMSet, MSGFLAG_READ, 0);
 666         }
 667         DeleteMSet(&MatchMSet);
 668         FreeStrBuf(&OldMsg);
 669 }
 670
 671 extern readloop_struct rlid[];
 672
 673 typedef struct _RoomRenderer{
 674         int RoomType;
 675
 676         GetParamsGetServerCall_func GetParamsGetServerCall;
 677         PrintViewHeader_func PrintViewHeader;
 678         LoadMsgFromServer_func LoadMsgFromServer;
 679         RenderView_or_Tail_func RenderView_or_Tail;
 680         View_Cleanup_func ViewCleanup;
 681         load_msg_ptrs_detailheaders LHParse;
 682 } RoomRenderer;
 683
 684
 685 /*
 686  * command loop for reading messages
 687  *
 688  * Set oper to "readnew" or "readold" or "readfwd" or "headers" or "readgt" or "readlt" or "do_search"
 689  */
 690 void readloop(long oper, eCustomRoomRenderer ForceRenderer)
 691 {
 692         RoomRenderer *ViewMsg;
 693         void *vViewMsg;
 694         void *vMsg;
 695         message_summary *Msg;
 696         char cmd[256] = "";
 697         int i, r;
 698         wcsession *WCC = WC;
 699         HashPos *at;
 700         const char *HashKey;
 701         long HKLen;
 702         WCTemplputParams SubTP;
 703         SharedMessageStatus Stat;
 704         void *ViewSpecific;
 705
 706         if (havebstr("is_summary") && (1 == (ibstr("is_summary")))) {
 707                 WCC->CurRoom.view = VIEW_MAILBOX;
 708         }
 709
 710         if (havebstr("is_ajax") && (1 == (ibstr("is_ajax")))) {
 711                 WCC->is_ajax = 1;
 712         }
 713
 714         if ((oper == do_search) && (WCC->CurRoom.view == VIEW_WIKI)) {
 715                 display_wiki_pagelist();
 716                 return;
 717         }
 718
 719         if (WCC->CurRoom.view == VIEW_WIKI) {
 720                 http_redirect("wiki?page=home");
 721                 return;
 722         }
 723
 724         memset(&Stat, 0, sizeof(SharedMessageStatus));
 725         Stat.maxload = 10000;
 726         Stat.lowest_found = (-1);
 727         Stat.highest_found = (-1);
 728         if (ForceRenderer == eUseDefault)
 729                 GetHash(ReadLoopHandler, IKEY(WCC->CurRoom.view), &vViewMsg);
 730         else
 731                 GetHash(ReadLoopHandler, IKEY(ForceRenderer), &vViewMsg);
 732         if (vViewMsg == NULL) {
 733                 WCC->CurRoom.view = VIEW_BBS;
 734                 GetHash(ReadLoopHandler, IKEY(WCC->CurRoom.view), &vViewMsg);
 735         }
 736         if (vViewMsg == NULL) {
 737                 return;                 /* TODO: print message */
 738         }
 739
 740         ViewMsg = (RoomRenderer*) vViewMsg;
 741         if (!WCC->is_ajax) {
 742                 output_headers(1, 1, 1, 0, 0, 0);
 743         } else if (WCC->CurRoom.view == VIEW_MAILBOX) {
 744                 jsonMessageListHdr();
 745         }
 746
 747         if (ViewMsg->GetParamsGetServerCall != NULL) {
 748                 r = ViewMsg->GetParamsGetServerCall(
 749                        &Stat,
 750                        &ViewSpecific,
 751                        oper,
 752                        cmd, sizeof(cmd)
 753                 );
 754         } else {
 755                 r = 0;
 756         }
 757         switch(r)
 758         {
 759         case 400:
 760         case 404:
 761
 762                 return;
 763         case 300: /* the callback hook should do the work for us here, since he knows what to do. */
 764                 return;
 765         case 200:
 766         default:
 767                 break;
 768         }
 769         if (!IsEmptyStr(cmd))
 770                 Stat.nummsgs = load_msg_ptrs(cmd, &Stat, ViewMsg->LHParse);
 771
 772         if (Stat.sortit) {
 773                 CompareFunc SortIt;
 774                 memset(&SubTP, 0, sizeof(WCTemplputParams));
 775                 SubTP.Filter.ContextType = CTX_MAILSUM;
 776                 SubTP.Context = NULL;
 777                 SortIt =  RetrieveSort(&SubTP, NULL, 0,
 778                                        HKEY("date"), Stat.defaultsortorder);
 779                 if (SortIt != NULL)
 780                         SortByPayload(WCC->summ, SortIt);
 781         }
 782         if (Stat.startmsg < 0) {
 783                 Stat.startmsg =  0;
 784         }
 785
 786         if (Stat.load_seen) load_seen_flags();
 787
 788         /*
 789          * Print any inforation above the message list...
 790          */
 791         if (ViewMsg->PrintViewHeader != NULL)
 792                 ViewMsg->PrintViewHeader(&Stat, &ViewSpecific);
 793
 794         WCC->startmsg =  Stat.startmsg;
 795         WCC->maxmsgs = Stat.maxmsgs;
 796         WCC->num_displayed = 0;
 797
 798         /* Put some helpful data in vars for mailsummary_json */
 799         {
 800                 StrBuf *Foo;
 801
 802                 Foo = NewStrBuf ();
 803                 StrBufPrintf(Foo, "%ld", Stat.nummsgs);
 804                 PutBstr(HKEY("__READLOOP:TOTALMSGS"), NewStrBufDup(Foo));
 805                 StrBufPrintf(Foo, "%ld", Stat.startmsg);
 806                 PutBstr(HKEY("__READLOOP:STARTMSG"), Foo);
 807         }
 808
 809         /*
 810          * iterate over each message. if we need to load an attachment, do it here.
 811          */
 812
 813         if ((ViewMsg->LoadMsgFromServer != NULL) &&
 814             (!IsEmptyStr(cmd)))
 815         {
 816                 at = GetNewHashPos(WCC->summ, 0);
 817                 Stat.num_displayed = i = 0;
 818                 while ( GetNextHashPos(WCC->summ, at, &HKLen, &HashKey, &vMsg)) {
 819                         Msg = (message_summary*) vMsg;
 820                         if ((Msg->msgnum >= Stat.startmsg) && (Stat.num_displayed <= Stat.maxmsgs)) {
 821                                 ViewMsg->LoadMsgFromServer(&Stat,
 822                                                            &ViewSpecific,
 823                                                            Msg,
 824                                                            (Msg->Flags & MSGFLAG_READ) != 0,
 825                                                            i);
 826                         }
 827                         i++;
 828                 }
 829                 DeleteHashPos(&at);
 830         }
 831
 832         /*
 833          * Done iterating the message list. now tasks we want to do after.
 834          */
 835         if (ViewMsg->RenderView_or_Tail != NULL)
 836                 ViewMsg->RenderView_or_Tail(&Stat, &ViewSpecific, oper);
 837
 838         if (ViewMsg->ViewCleanup != NULL)
 839                 ViewMsg->ViewCleanup(&ViewSpecific);
 840
 841         WCC->startmsg = 0;
 842         WCC->maxmsgs = 0;
 843         if (WCC->summ != NULL) {
 844                 DeleteHash(&WCC->summ);
 845         }
 846 }
 847
 848
 849 /*
 850  * Back end for post_message()
 851  * ... this is where the actual message gets transmitted to the server.
 852  */
 853 void post_mime_to_server(void) {
 854         wcsession *WCC = WC;
 855         char top_boundary[SIZ];
 856         char alt_boundary[SIZ];
 857         int is_multipart = 0;
 858         static int seq = 0;
 859         wc_mime_attachment *att;
 860         char *encoded;
 861         size_t encoded_length;
 862         size_t encoded_strlen;
 863         char *txtmail = NULL;
 864         int include_text_alt = 0;       /* Set to nonzero to include multipart/alternative text/plain */
 865
 866         sprintf(top_boundary, "Citadel--Multipart--%s--%04x--%04x",
 867                 ChrPtr(WCC->serv_info->serv_fqdn),
 868                 getpid(),
 869                 ++seq
 870         );
 871         sprintf(alt_boundary, "Citadel--Multipart--%s--%04x--%04x",
 872                 ChrPtr(WCC->serv_info->serv_fqdn),
 873                 getpid(),
 874                 ++seq
 875         );
 876
 877         /* RFC2045 requires this, and some clients look for it... */
 878         serv_puts("MIME-Version: 1.0");
 879         serv_puts("X-Mailer: " PACKAGE_STRING);
 880
 881         /* If there are attachments, we have to do multipart/mixed */
 882         if (GetCount(WCC->attachments) > 0) {
 883                 is_multipart = 1;
 884         }
 885
 886         /* Only do multipart/alternative for mailboxes.  BBS and Wiki rooms don't need it. */
 887         if (WC->CurRoom.view == VIEW_MAILBOX) {
 888                 include_text_alt = 1;
 889         }
 890
 891         if (is_multipart) {
 892                 /* Remember, serv_printf() appends an extra newline */
 893                 serv_printf("Content-type: multipart/mixed; boundary=\"%s\"\n", top_boundary);
 894                 serv_printf("This is a multipart message in MIME format.\n");
 895                 serv_printf("--%s", top_boundary);
 896         }
 897
 898         /* Remember, serv_printf() appends an extra newline */
 899         if (include_text_alt) {
 900                 serv_printf("Content-type: multipart/alternative; "
 901                         "boundary=\"%s\"\n", alt_boundary);
 902                 serv_printf("This is a multipart message in MIME format.\n");
 903                 serv_printf("--%s", alt_boundary);
 904
 905                 serv_puts("Content-type: text/plain; charset=utf-8");
 906                 serv_puts("Content-Transfer-Encoding: quoted-printable");
 907                 serv_puts("");
 908                 txtmail = html_to_ascii(bstr("msgtext"), 0, 80, 0);
 909                 text_to_server_qp(txtmail);     /* Transmit message in quoted-printable encoding */
 910                 free(txtmail);
 911
 912                 serv_printf("\n--%s", alt_boundary);
 913         }
 914
 915         serv_puts("Content-type: text/html; charset=utf-8");
 916         serv_puts("Content-Transfer-Encoding: quoted-printable");
 917         serv_puts("");
 918         serv_puts("<html><body>\r\n");
 919         text_to_server_qp(bstr("msgtext"));     /* Transmit message in quoted-printable encoding */
 920         serv_puts("</body></html>\r\n");
 921
 922         if (include_text_alt) {
 923                 serv_printf("--%s--", alt_boundary);
 924         }
 925
 926         if (is_multipart) {
 927                 long len;
 928                 const char *Key;
 929                 void *vAtt;
 930                 HashPos  *it;
 931
 932                 /* Add in the attachments */
 933                 it = GetNewHashPos(WCC->attachments, 0);
 934                 while (GetNextHashPos(WCC->attachments, it, &len, &Key, &vAtt)) {
 935                         att = (wc_mime_attachment *)vAtt;
 936                         if (att->length == 0)
 937                                 continue;
 938                         encoded_length = ((att->length * 150) / 100);
 939                         encoded = malloc(encoded_length);
 940                         if (encoded == NULL) break;
 941                         encoded_strlen = CtdlEncodeBase64(encoded, ChrPtr(att->Data), StrLength(att->Data), 1);
 942
 943                         serv_printf("--%s", top_boundary);
 944                         serv_printf("Content-type: %s", ChrPtr(att->ContentType));
 945                         serv_printf("Content-disposition: attachment; filename=\"%s\"", ChrPtr(att->FileName));
 946                         serv_puts("Content-transfer-encoding: base64");
 947                         serv_puts("");
 948                         serv_write(encoded, encoded_strlen);
 949                         serv_puts("");
 950                         serv_puts("");
 951                         free(encoded);
 952                 }
 953                 serv_printf("--%s--", top_boundary);
 954                 DeleteHashPos(&it);
 955         }
 956
 957         serv_puts("000");
 958 }
 959
 960
 961 /*
 962  * Post message (or don't post message)
 963  *
 964  * Note regarding the "dont_post" variable:
 965  * A random value (actually, it's just a timestamp) is inserted as a hidden
 966  * field called "postseq" when the display_enter page is generated.  This
 967  * value is checked when posting, using the static variable dont_post.  If a
 968  * user attempts to post twice using the same dont_post value, the message is
 969  * discarded.  This prevents the accidental double-saving of the same message
 970  * if the user happens to click the browser "back" button.
 971  */
 972 void post_message(void)
 973 {
 974         StrBuf *UserName;
 975         StrBuf *EmailAddress;
 976         StrBuf *EncBuf;
 977         char buf[1024];
 978         StrBuf *encoded_subject = NULL;
 979         static long dont_post = (-1L);
 980         int is_anonymous = 0;
 981         const StrBuf *display_name = NULL;
 982         wcsession *WCC = WC;
 983         StrBuf *Buf;
 984
 985         if (havebstr("force_room")) {
 986                 gotoroom(sbstr("force_room"));
 987         }
 988
 989         if (havebstr("display_name")) {
 990                 display_name = sbstr("display_name");
 991                 if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
 992                         display_name = NULL;
 993                         is_anonymous = 1;
 994                 }
 995         }
 996
 997         if (!strcasecmp(bstr("submit_action"), "cancel")) {
 998                 AppendImportantMessage(_("Cancelled.  Message was not posted."), -1);
 999         } else if (lbstr("postseq") == dont_post) {
1000                 AppendImportantMessage(
1001                         _("Automatically cancelled because you have already "
1002                           "saved this message."), -1);
1003         } else {
1004                 const char CMD[] = "ENT0 1|%s|%d|4|%s|%s||%s|%s|%s|%s|%s";
1005                 StrBuf *Recp = NULL;
1006                 StrBuf *Cc = NULL;
1007                 StrBuf *Bcc = NULL;
1008                 const StrBuf *Wikipage = NULL;
1009                 const StrBuf *my_email_addr = NULL;
1010                 StrBuf *CmdBuf = NULL;
1011                 StrBuf *references = NULL;
1012                 int save_to_drafts;
1013                 long HeaderLen;
1014
1015                 save_to_drafts = !strcasecmp(bstr("submit_action"), "drafts");
1016                 Buf = NewStrBuf();
1017
1018                 if (save_to_drafts) {
1019                         /* temporarily change to the drafts room */
1020                         serv_puts("GOTO _DRAFTS_");
1021                         StrBuf_ServGetln(Buf);
1022                         if (GetServerStatus(Buf, NULL) != 2) {
1023                                 /* You probably don't even have a dumb Drafts folder */
1024                                 StrBufCutLeft(Buf, 4);
1025                                 syslog(9, "%s:%d: server save to drafts error: %s\n", __FILE__, __LINE__, ChrPtr(Buf));
1026                                 StrBufAppendBufPlain(WCC->ImportantMsg, _("Saved to Drafts failed: "), -1, 0);
1027                                 StrBufAppendBuf(WCC->ImportantMsg, Buf, 0);
1028                                 display_enter();
1029                                 FreeStrBuf(&Buf);
1030                                 return;
1031                         }
1032                 }
1033
1034                 if (havebstr("references"))
1035                 {
1036                         const StrBuf *ref = sbstr("references");
1037                         references = NewStrBufDup(ref);
1038                         if (*ChrPtr(references) == '|') {       /* remove leading '|' if present */
1039                                 StrBufCutLeft(references, 1);
1040                         }
1041                         StrBufReplaceChars(references, '|', '!');
1042                 }
1043                 if (havebstr("subject")) {
1044                         const StrBuf *Subj;
1045                         /*
1046                          * make enough room for the encoded string;
1047                          * plus the QP header
1048                          */
1049                         Subj = sbstr("subject");
1050
1051                         StrBufRFC2047encode(&encoded_subject, Subj);
1052                 }
1053                 UserName = NewStrBuf();
1054                 EmailAddress = NewStrBuf();
1055                 EncBuf = NewStrBuf();
1056
1057                 Recp = StrBufSanitizeEmailRecipientVector(sbstr("recp"), UserName, EmailAddress, EncBuf);
1058                 Cc = StrBufSanitizeEmailRecipientVector(sbstr("cc"), UserName, EmailAddress, EncBuf);
1059                 Bcc = StrBufSanitizeEmailRecipientVector(sbstr("bcc"), UserName, EmailAddress, EncBuf);
1060
1061                 FreeStrBuf(&UserName);
1062                 FreeStrBuf(&EmailAddress);
1063                 FreeStrBuf(&EncBuf);
1064
1065                 Wikipage = sbstr("page");
1066                 my_email_addr = sbstr("my_email_addr");
1067
1068                 HeaderLen = StrLength(Recp) +
1069                         StrLength(encoded_subject) +
1070                         StrLength(Cc) +
1071                         StrLength(Bcc) +
1072                         StrLength(Wikipage) +
1073                         StrLength(my_email_addr) +
1074                         StrLength(references);
1075                 CmdBuf = NewStrBufPlain(NULL, sizeof (CMD) + HeaderLen);
1076                 StrBufPrintf(CmdBuf,
1077                              CMD,
1078                              save_to_drafts?"":ChrPtr(Recp),
1079                              is_anonymous,
1080                              ChrPtr(encoded_subject),
1081                              ChrPtr(display_name),
1082                              save_to_drafts?"":ChrPtr(Cc),
1083                              save_to_drafts?"":ChrPtr(Bcc),
1084                              ChrPtr(Wikipage),
1085                              ChrPtr(my_email_addr),
1086                              ChrPtr(references));
1087                 FreeStrBuf(&references);
1088                 FreeStrBuf(&encoded_subject);
1089
1090                 if ((HeaderLen + StrLength(sbstr("msgtext")) < 10) &&
1091                     (GetCount(WCC->attachments) == 0)){
1092                         StrBufAppendBufPlain(WCC->ImportantMsg, _("Refusing to post empty message.\n"), -1, 0);
1093                         FreeStrBuf(&CmdBuf);
1094
1095                 }
1096                 else
1097                 {
1098                         syslog(9, "%s\n", ChrPtr(CmdBuf));
1099                         serv_puts(ChrPtr(CmdBuf));
1100                         FreeStrBuf(&CmdBuf);
1101
1102                         StrBuf_ServGetln(Buf);
1103                         if (GetServerStatus(Buf, NULL) == 4) {
1104                                 if (save_to_drafts) {
1105                                         if (  (havebstr("recp"))
1106                                               || (havebstr("cc"  ))
1107                                               || (havebstr("bcc" )) ) {
1108                                                 /* save recipient headers or room to post to */
1109                                                 serv_printf("To: %s", ChrPtr(Recp));
1110                                                 serv_printf("Cc: %s", ChrPtr(Cc));
1111                                                 serv_printf("Bcc: %s", ChrPtr(Bcc));
1112                                         } else {
1113                                                 serv_printf("X-Citadel-Room: %s", ChrPtr(WC->CurRoom.name));
1114                                         }
1115                                 }
1116                                 post_mime_to_server();
1117                                 if (save_to_drafts) {
1118                                         StrBufAppendBufPlain(WCC->ImportantMsg, _("Message has been saved to Drafts.\n"), -1, 0);
1119                                         gotoroom(WCC->CurRoom.name);
1120                                         display_enter();
1121                                         FreeStrBuf(&Buf);
1122                                         return;
1123                                 } else if (  (havebstr("recp"))
1124                                              || (havebstr("cc"  ))
1125                                              || (havebstr("bcc" ))
1126                                         ) {
1127                                         StrBufAppendBufPlain(WCC->ImportantMsg, _("Message has been sent.\n"), -1, 0);
1128                                 }
1129                                 else {
1130                                         StrBufAppendBufPlain(WCC->ImportantMsg, _("Message has been posted.\n"), -1, 0);
1131                                 }
1132                                 dont_post = lbstr("postseq");
1133                         } else {
1134                                 StrBufCutLeft(Buf, 4);
1135
1136                                 syslog(9, "%s:%d: server post error: %s\n", __FILE__, __LINE__, ChrPtr(Buf));
1137                                 StrBufAppendBuf(WCC->ImportantMsg, Buf, 0);
1138                                 if (save_to_drafts) gotoroom(WCC->CurRoom.name);
1139                                 display_enter();
1140                                 FreeStrBuf(&Buf);
1141                                 FreeStrBuf(&Cc);
1142                                 FreeStrBuf(&Bcc);
1143                                 return;
1144                         }
1145                 }
1146                 FreeStrBuf(&Recp);
1147                 FreeStrBuf(&Buf);
1148                 FreeStrBuf(&Cc);
1149                 FreeStrBuf(&Bcc);
1150         }
1151
1152         DeleteHash(&WCC->attachments);
1153
1154         /*
1155          *  We may have been supplied with instructions regarding the location
1156          *  to which we must return after posting.  If found, go there.
1157          */
1158         if (havebstr("return_to")) {
1159                 http_redirect(bstr("return_to"));
1160         }
1161         /*
1162          *  If we were editing a page in a wiki room, go to that page now.
1163          */
1164         else if (havebstr("page")) {
1165                 snprintf(buf, sizeof buf, "wiki?page=%s", bstr("page"));
1166                 http_redirect(buf);
1167         }
1168         /*
1169          *  Otherwise, just go to the "read messages" loop.
1170          */
1171         else {
1172                 readloop(readnew, eUseDefault);
1173         }
1174 }
1175
1176
1177 /*
1178  * Client is uploading an attachment
1179  */
1180 void upload_attachment(void) {
1181         wcsession *WCC = WC;
1182         const char *pch;
1183         int n;
1184         const char *newn;
1185         long newnlen;
1186         void *v;
1187         wc_mime_attachment *att;
1188
1189         syslog(9, "upload_attachment()\n");
1190         wc_printf("upload_attachment()<br>\n");
1191
1192         if (WCC->upload_length <= 0) {
1193                 syslog(9, "ERROR no attachment was uploaded\n");
1194                 wc_printf("ERROR no attachment was uploaded<br>\n");
1195                 return;
1196         }
1197
1198         syslog(9, "Client is uploading %d bytes\n", WCC->upload_length);
1199         wc_printf("Client is uploading %d bytes<br>\n", WCC->upload_length);
1200         att = malloc(sizeof(wc_mime_attachment));
1201         memset(att, 0, sizeof(wc_mime_attachment ));
1202         att->length = WCC->upload_length;
1203         att->ContentType = NewStrBufPlain(WCC->upload_content_type, -1);
1204         att->FileName = NewStrBufDup(WCC->upload_filename);
1205
1206         if (WCC->attachments == NULL) {
1207                 WCC->attachments = NewHash(1, Flathash);
1208         }
1209
1210         /* And add it to the list. */
1211         n = 0;
1212         if ((GetCount(WCC->attachments) > 0) &&
1213             GetHashAt(WCC->attachments,
1214                       GetCount(WCC->attachments) -1,
1215                       &newnlen, &newn, &v))
1216             n = *((int*) newn) + 1;
1217         Put(WCC->attachments, IKEY(n), att, DestroyMime);
1218
1219         /*
1220          * Mozilla sends a simple filename, which is what we want,
1221          * but Satan's Browser sends an entire pathname.  Reduce
1222          * the path to just a filename if we need to.
1223          */
1224         pch = strrchr(ChrPtr(att->FileName), '/');
1225         if (pch != NULL) {
1226                 StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1227         }
1228         pch = strrchr(ChrPtr(att->FileName), '\\');
1229         if (pch != NULL) {
1230                 StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1231         }
1232
1233         /*
1234          * Transfer control of this memory from the upload struct
1235          * to the attachment struct.
1236          */
1237         att->Data = WCC->upload;
1238         WCC->upload = NULL;
1239         WCC->upload_length = 0;
1240 }
1241
1242
1243 /*
1244  * Remove an attachment from the message currently being composed.
1245  *
1246  * Currently we identify the attachment to be removed by its filename.
1247  * There is probably a better way to do this.
1248  */
1249 void remove_attachment(void) {
1250         wcsession *WCC = WC;
1251         wc_mime_attachment *att;
1252         void *vAtt;
1253         StrBuf *WhichAttachment;
1254         HashPos *at;
1255         long len;
1256         const char *key;
1257
1258         WhichAttachment = NewStrBufDup(sbstr("which_attachment"));
1259         StrBufUnescape(WhichAttachment, 0);
1260         at = GetNewHashPos(WCC->attachments, 0);
1261         do {
1262                 GetHashPos(WCC->attachments, at, &len, &key, &vAtt);
1263
1264                 att = (wc_mime_attachment*) vAtt;
1265                 if ((att != NULL) &&
1266                     (strcmp(ChrPtr(WhichAttachment),
1267                             ChrPtr(att->FileName)   ) == 0))
1268                 {
1269                         DeleteEntryFromHash(WCC->attachments, at);
1270                         break;
1271                 }
1272         }
1273         while (NextHashPos(WCC->attachments, at));
1274         FreeStrBuf(&WhichAttachment);
1275         wc_printf("remove_attachment() completed\n");
1276 }
1277
1278
1279 long FourHash(const char *key, long length)
1280 {
1281         int i;
1282         long ret = 0;
1283         const unsigned char *ptr = (const unsigned char*)key;
1284
1285         for (i = 0; i < 4; i++, ptr ++)
1286                 ret = (ret << 8) |
1287                         ( ((*ptr >= 'a') &&
1288                            (*ptr <= 'z'))?
1289                           *ptr - 'a' + 'A':
1290                           *ptr);
1291
1292         return ret;
1293 }
1294
1295 long l_subj;
1296 long l_wefw;
1297 long l_msgn;
1298 long l_from;
1299 long l_rcpt;
1300 long l_cccc;
1301 long l_node;
1302 long l_rfca;
1303
1304 /*
1305  * display the message entry screen
1306  */
1307 void display_enter(void)
1308 {
1309         StrBuf *Line;
1310         long Result;
1311         int rc;
1312         const StrBuf *display_name = NULL;
1313         int recipient_required = 0;
1314         int subject_required = 0;
1315         int recipient_bad = 0;
1316         int is_anonymous = 0;
1317         wcsession *WCC = WC;
1318         int i = 0;
1319         long replying_to;
1320
1321         if (havebstr("force_room")) {
1322                 gotoroom(sbstr("force_room"));
1323         }
1324
1325         display_name = sbstr("display_name");
1326         if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1327                 display_name = NULL;
1328                 is_anonymous = 1;
1329         }
1330
1331         /* First test to see whether this is a room that requires recipients to be entered */
1332         Line = NewStrBuf();
1333         serv_puts("ENT0 0");
1334         StrBuf_ServGetln(Line);
1335         rc = GetServerStatusMsg(Line, &Result, 0, 2);
1336
1337         if (Result == 570) {            /* 570 means that we need a recipient here */
1338                 recipient_required = 1;
1339         }
1340         else if (rc != 2) {             /* Any other error means that we cannot continue */
1341                 rc = GetServerStatusMsg(Line, &Result, 0, 2);
1342                 readloop(readnew, eUseDefault);
1343                 FreeStrBuf(&Line);
1344                 return;
1345         }
1346
1347         /* Is the server strongly recommending that the user enter a message subject? */
1348         if (StrLength(Line) > 4) {
1349                 subject_required = extract_int(ChrPtr(Line) + 4, 1);
1350         }
1351
1352         /*
1353          * Are we perhaps in an address book view?  If so, then an "enter
1354          * message" command really means "add new entry."
1355          */
1356         if (WCC->CurRoom.defview == VIEW_ADDRESSBOOK) {
1357                 do_edit_vcard(-1, "", NULL, NULL, "",  ChrPtr(WCC->CurRoom.name));
1358                 FreeStrBuf(&Line);
1359                 return;
1360         }
1361
1362         /*
1363          * Are we perhaps in a calendar room?  If so, then an "enter
1364          * message" command really means "add new calendar item."
1365          */
1366         if (WCC->CurRoom.defview == VIEW_CALENDAR) {
1367                 display_edit_event();
1368                 FreeStrBuf(&Line);
1369                 return;
1370         }
1371
1372         /*
1373          * Are we perhaps in a tasks view?  If so, then an "enter
1374          * message" command really means "add new task."
1375          */
1376         if (WCC->CurRoom.defview == VIEW_TASKS) {
1377                 display_edit_task();
1378                 FreeStrBuf(&Line);
1379                 return;
1380         }
1381
1382
1383         /*
1384          * If the "replying_to" variable is set, it refers to a message
1385          * number from which we must extract some header fields...
1386          */
1387         replying_to = lbstr("replying_to");
1388         if (replying_to > 0) {
1389                 long len;
1390                 StrBuf *wefw = NULL;
1391                 StrBuf *msgn = NULL;
1392                 StrBuf *from = NULL;
1393                 StrBuf *node = NULL;
1394                 StrBuf *rfca = NULL;
1395                 StrBuf *rcpt = NULL;
1396                 StrBuf *cccc = NULL;
1397                 serv_printf("MSG0 %ld|1", replying_to);
1398
1399                 StrBuf_ServGetln(Line);
1400                 if (GetServerStatusMsg(Line, NULL, 0, 0) == 1)
1401                         while (len = StrBuf_ServGetln(Line),
1402                                (len >= 0) &&
1403                                ((len != 3)  ||
1404                                 strcmp(ChrPtr(Line), "000")))
1405                         {
1406                                 long which = 0;
1407                                 if ((StrLength(Line) > 4) &&
1408                                     (ChrPtr(Line)[4] == '='))
1409                                         which = FourHash(ChrPtr(Line), 4);
1410
1411                                 if (which == l_subj)
1412                                 {
1413                                         StrBuf *subj = NewStrBuf();
1414                                         if (!strcasecmp(bstr("replying_mode"), "forward")) {
1415                                                 if (strncasecmp(ChrPtr(Line) + 5, "Fw:", 3)) {
1416                                                         StrBufAppendBufPlain(subj, HKEY("Fw: "), 0);
1417                                                 }
1418                                         }
1419                                         else {
1420                                                 if (strncasecmp(ChrPtr(Line) + 5, "Re:", 3)) {
1421                                                         StrBufAppendBufPlain(subj, HKEY("Re: "), 0);
1422                                                 }
1423                                         }
1424                                         StrBufAppendBufPlain(subj,
1425                                                              ChrPtr(Line) + 5,
1426                                                              StrLength(Line) - 5, 0);
1427                                         PutBstr(HKEY("subject"), subj);
1428                                 }
1429
1430                                 else if (which == l_wefw)
1431                                 {
1432                                         int rrtok;
1433                                         int rrlen;
1434
1435                                         wefw = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1436
1437                                         /* Trim down excessively long lists of thread references.  We eliminate the
1438                                          * second one in the list so that the thread root remains intact.
1439                                          */
1440                                         rrtok = num_tokens(ChrPtr(wefw), '|');
1441                                         rrlen = StrLength(wefw);
1442                                         if ( ((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10) ) {
1443                                                 StrBufRemove_token(wefw, 1, '|');
1444                                         }
1445                                 }
1446
1447                                 else if (which == l_msgn) {
1448                                         msgn = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1449                                 }
1450
1451                                 else if (which == l_from) {
1452                                         from = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1453                                         for (i=0; i<StrLength(from); ++i) {
1454                                                 if (ChrPtr(from)[i] == ',')
1455                                                         StrBufPeek(from, NULL, i, ' ');
1456                                         }
1457                                 }
1458
1459                                 else if (which == l_rcpt) {
1460                                         rcpt = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1461                                 }
1462
1463                                 else if (which == l_cccc) {
1464                                         cccc = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1465                                 }
1466
1467                                 else if (which == l_node) {
1468                                         node = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1469                                 }
1470
1471                                 else if (which == l_rfca) {
1472                                         rfca = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1473                                 }
1474                         }
1475
1476
1477                 if (StrLength(wefw) + StrLength(msgn) > 0) {
1478                         StrBuf *refs = NewStrBuf();
1479                         if (StrLength(wefw) > 0) {
1480                                 StrBufAppendBuf(refs, wefw, 0);
1481                         }
1482                         if ( (StrLength(wefw) > 0) &&
1483                              (StrLength(msgn) > 0) )
1484                         {
1485                                 StrBufAppendBufPlain(refs, HKEY("|"), 0);
1486                         }
1487                         if (StrLength(msgn) > 0) {
1488                                 StrBufAppendBuf(refs, msgn, 0);
1489                         }
1490                         PutBstr(HKEY("references"), refs);
1491                 }
1492
1493                 /*
1494                  * If this is a Reply or a ReplyAll, copy the sender's email into the To: field
1495                  */
1496                 if (    (!strcasecmp(bstr("replying_mode"), "reply"))
1497                         || (!strcasecmp(bstr("replying_mode"), "replyall"))
1498                 ) {
1499                         StrBuf *to_rcpt;
1500                         if (StrLength(rfca) > 0) {
1501                                 to_rcpt = NewStrBuf();
1502                                 StrBufAppendBuf(to_rcpt, from, 0);
1503                                 StrBufAppendBufPlain(to_rcpt, HKEY(" <"), 0);
1504                                 StrBufAppendBuf(to_rcpt, rfca, 0);
1505                                 StrBufAppendBufPlain(to_rcpt, HKEY(">"), 0);
1506                         }
1507                         else {
1508                                 to_rcpt =  from;
1509                                 from = NULL;
1510                                 if (    (StrLength(node) > 0)
1511                                         && (strcasecmp(ChrPtr(node), ChrPtr(WC->serv_info->serv_nodename)))
1512                                 ) {
1513                                         StrBufAppendBufPlain(to_rcpt, HKEY(" @ "), 0);
1514                                         StrBufAppendBuf(to_rcpt, node, 0);
1515                                 }
1516                         }
1517                         PutBstr(HKEY("recp"), to_rcpt);
1518                 }
1519
1520                 /*
1521                  * Only if this is a ReplyAll, copy all recipients into the Cc: field
1522                  */
1523                 if (    (!strcasecmp(bstr("replying_mode"), "replyall"))
1524                 ) {
1525                         StrBuf *cc_rcpt = rcpt;
1526                         rcpt = NULL;
1527                         if (StrLength(cccc) > 0) {
1528                                 if (cc_rcpt != NULL)  {
1529                                         StrBufAppendPrintf(cc_rcpt, ", ");
1530                                         StrBufAppendBuf(cc_rcpt, cccc, 0);
1531                                 } else {
1532                                         cc_rcpt = cccc;
1533                                         cccc = NULL;
1534                                 }
1535                         }
1536                         if (cc_rcpt != NULL)
1537                                 PutBstr(HKEY("cc"), cc_rcpt);
1538                 }
1539                 FreeStrBuf(&wefw);
1540                 FreeStrBuf(&msgn);
1541                 FreeStrBuf(&from);
1542                 FreeStrBuf(&node);
1543                 FreeStrBuf(&rfca);
1544                 FreeStrBuf(&rcpt);
1545                 FreeStrBuf(&cccc);
1546         }
1547         FreeStrBuf(&Line);
1548         /*
1549          * Otherwise proceed normally.
1550          * Do a custom room banner with no navbar...
1551          */
1552
1553         if (recipient_required) {
1554                 const StrBuf *Recp = NULL;
1555                 const StrBuf *Cc = NULL;
1556                 const StrBuf *Bcc = NULL;
1557                 const StrBuf *Wikipage = NULL;
1558                 StrBuf *CmdBuf = NULL;
1559                 const char CMD[] = "ENT0 0|%s|%d|0||%s||%s|%s|%s";
1560
1561                 Recp = sbstr("recp");
1562                 Cc = sbstr("cc");
1563                 Bcc = sbstr("bcc");
1564                 Wikipage = sbstr("page");
1565
1566                 CmdBuf = NewStrBufPlain(NULL,
1567                                         sizeof (CMD) +
1568                                         StrLength(Recp) +
1569                                         StrLength(display_name) +
1570                                         StrLength(Cc) +
1571                                         StrLength(Bcc) +
1572                                         StrLength(Wikipage));
1573
1574                 StrBufPrintf(CmdBuf,
1575                              CMD,
1576                              ChrPtr(Recp),
1577                              is_anonymous,
1578                              ChrPtr(display_name),
1579                              ChrPtr(Cc),
1580                              ChrPtr(Bcc),
1581                              ChrPtr(Wikipage));
1582                 serv_puts(ChrPtr(CmdBuf));
1583                 StrBuf_ServGetln(CmdBuf);
1584
1585                 rc = GetServerStatusMsg(CmdBuf, &Result, 0, 0);
1586
1587                 if (Result == 570) {    /* 570 means we have an invalid recipient listed */
1588                         if (havebstr("recp") &&
1589                             havebstr("cc"  ) &&
1590                             havebstr("bcc" )) {
1591                                 recipient_bad = 1; /* TODO: and now????? */
1592                         }
1593                 }
1594                 else if (rc != 2) {     /* Any other error means that we cannot continue */
1595                         wc_printf("<em>%s</em><br>\n", ChrPtr(CmdBuf) +4);      /* TODO -> important message */
1596                         FreeStrBuf(&CmdBuf);
1597                         return;
1598                 }
1599                 FreeStrBuf(&CmdBuf);
1600         }
1601         if (recipient_required)
1602                 PutBstr(HKEY("__RCPTREQUIRED"), NewStrBufPlain(HKEY("1")));
1603         if (recipient_required || subject_required)
1604                 PutBstr(HKEY("__SUBJREQUIRED"), NewStrBufPlain(HKEY("1")));
1605
1606         begin_burst();
1607         output_headers(1, 0, 0, 0, 1, 0);
1608         DoTemplate(HKEY("edit_message"), NULL, &NoCtx);
1609         end_burst();
1610
1611         return;
1612 }
1613
1614 /*
1615  * delete a message
1616  */
1617 void delete_msg(void)
1618 {
1619         long msgid;
1620         StrBuf *Line;
1621
1622         msgid = lbstr("msgid");
1623         Line = NewStrBuf();
1624         if ((WC->CurRoom.RAFlags & UA_ISTRASH) != 0) {  /* Delete from Trash is a real delete */
1625                 serv_printf("DELE %ld", msgid);
1626         }
1627         else {                  /* Otherwise move it to Trash */
1628                 serv_printf("MOVE %ld|_TRASH_|0", msgid);
1629         }
1630
1631         StrBuf_ServGetln(Line);
1632         GetServerStatusMsg(Line, NULL, 1, 0);
1633
1634         readloop(readnew, eUseDefault);
1635 }
1636
1637
1638 /*
1639  * move a message to another room
1640  */
1641 void move_msg(void)
1642 {
1643         long msgid;
1644
1645         msgid = lbstr("msgid");
1646
1647         if (havebstr("move_button")) {
1648                 StrBuf *Line;
1649                 serv_printf("MOVE %ld|%s", msgid, bstr("target_room"));
1650                 Line = NewStrBuf();
1651                 StrBuf_ServGetln(Line);
1652                 GetServerStatusMsg(Line, NULL, 1, 0);
1653                 FreeStrBuf(&Line);
1654         } else {
1655                 AppendImportantMessage(_("The message was not moved."), -1);
1656         }
1657
1658         readloop(readnew, eUseDefault);
1659 }
1660
1661
1662
1663 /*
1664  * Generic function to output an arbitrary MIME attachment from
1665  * message being composed
1666  *
1667  * partnum              The MIME part to be output
1668  * filename             Fake filename to give
1669  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1670  */
1671 void postpart(StrBuf *partnum, StrBuf *filename, int force_download)
1672 {
1673         void *vPart;
1674         StrBuf *content_type;
1675         wc_mime_attachment *part;
1676         int i;
1677
1678         i = StrToi(partnum);
1679         if (GetHash(WC->attachments, IKEY(i), &vPart) &&
1680             (vPart != NULL)) {
1681                 part = (wc_mime_attachment*) vPart;
1682                 if (force_download) {
1683                         content_type = NewStrBufPlain(HKEY("application/octet-stream"));
1684                 }
1685                 else {
1686                         content_type = NewStrBufDup(part->ContentType);
1687                 }
1688                 StrBufAppendBuf(WC->WBuf, part->Data, 0);
1689                 http_transmit_thing(ChrPtr(content_type), 0);
1690         } else {
1691                 hprintf("HTTP/1.1 404 %s\n", ChrPtr(partnum));
1692                 output_headers(0, 0, 0, 0, 0, 0);
1693                 hprintf("Content-Type: text/plain\r\n");
1694                 begin_burst();
1695                 wc_printf(_("An error occurred while retrieving this part: %s/%s\n"),
1696                         ChrPtr(partnum), ChrPtr(filename));
1697                 end_burst();
1698         }
1699         FreeStrBuf(&content_type);
1700 }
1701
1702
1703 /*
1704  * Generic function to output an arbitrary MIME part from an arbitrary
1705  * message number on the server.
1706  *
1707  * msgnum               Number of the item on the citadel server
1708  * partnum              The MIME part to be output
1709  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1710  */
1711 void mimepart(int force_download)
1712 {
1713         long msgnum;
1714         StrBuf *att;
1715         wcsession *WCC = WC;
1716         StrBuf *Buf;
1717         off_t bytes;
1718         StrBuf *ContentType = NewStrBufPlain(HKEY("application/octet-stream"));
1719         const char *CT;
1720
1721         att = Buf = NewStrBuf();
1722         msgnum = StrBufExtract_long(WCC->Hdr->HR.ReqLine, 0, '/');
1723         StrBufExtract_token(att, WCC->Hdr->HR.ReqLine, 1, '/');
1724
1725         serv_printf("OPNA %ld|%s", msgnum, ChrPtr(att));
1726         StrBuf_ServGetln(Buf);
1727         if (GetServerStatus(Buf, NULL) == 2) {
1728                 StrBufCutLeft(Buf, 4);
1729                 bytes = StrBufExtract_long(Buf, 0, '|');
1730                 if (!force_download) {
1731                         StrBufExtract_token(ContentType, Buf, 3, '|');
1732                 }
1733
1734                 serv_read_binary(WCC->WBuf, bytes, Buf);
1735                 serv_puts("CLOS");
1736                 StrBuf_ServGetln(Buf);
1737                 CT = ChrPtr(ContentType);
1738
1739                 if (!force_download) {
1740                         if (!strcasecmp(ChrPtr(ContentType), "application/octet-stream")) {
1741                                 StrBufExtract_token(Buf, WCC->Hdr->HR.ReqLine, 2, '/');
1742                                 CT = GuessMimeByFilename(SKEY(Buf));
1743                         }
1744                         if (!strcasecmp(ChrPtr(ContentType), "application/octet-stream")) {
1745                                 CT = GuessMimeType(SKEY(WCC->WBuf));
1746                         }
1747                 }
1748                 http_transmit_thing(CT, 0);
1749         } else {
1750                 StrBufCutLeft(Buf, 4);
1751                 hprintf("HTTP/1.1 404 %s\n", ChrPtr(Buf));
1752                 output_headers(0, 0, 0, 0, 0, 0);
1753                 hprintf("Content-Type: text/plain\r\n");
1754                 begin_burst();
1755                 wc_printf(_("An error occurred while retrieving this part: %s\n"),
1756                         ChrPtr(Buf));
1757                 end_burst();
1758         }
1759         FreeStrBuf(&ContentType);
1760         FreeStrBuf(&Buf);
1761 }
1762
1763
1764 /*
1765  * Read any MIME part of a message, from the server, into memory.
1766  */
1767 StrBuf *load_mimepart(long msgnum, char *partnum)
1768 {
1769         off_t bytes;
1770         StrBuf *Buf;
1771
1772         Buf = NewStrBuf();
1773         serv_printf("DLAT %ld|%s", msgnum, partnum);
1774         StrBuf_ServGetln(Buf);
1775         if (GetServerStatus(Buf, NULL) == 6) {
1776                 StrBufCutLeft(Buf, 4);
1777                 bytes = StrBufExtract_long(Buf, 0, '|');
1778                 FreeStrBuf(&Buf);
1779                 Buf = NewStrBuf();
1780                 StrBuf_ServGetBLOBBuffered(Buf, bytes);
1781                 return(Buf);
1782         }
1783         else {
1784                 FreeStrBuf(&Buf);
1785                 return(NULL);
1786         }
1787 }
1788
1789 /*
1790  * Read any MIME part of a message, from the server, into memory.
1791  */
1792 void MimeLoadData(wc_mime_attachment *Mime)
1793 {
1794         StrBuf *Buf;
1795         const char *Ptr;
1796         off_t bytes;
1797         /* TODO: is there a chance the content type is different from the one we know? */
1798
1799         serv_printf("DLAT %ld|%s", Mime->msgnum, ChrPtr(Mime->PartNum));
1800         Buf = NewStrBuf();
1801         StrBuf_ServGetln(Buf);
1802         if (GetServerStatus(Buf, NULL) == 6) {
1803                 Ptr = &(ChrPtr(Buf)[4]);
1804                 bytes = StrBufExtractNext_long(Buf, &Ptr, '|');
1805                 StrBufSkip_NTokenS(Buf, &Ptr, '|', 3);  /* filename, cbtype, mimetype */
1806                 if (Mime->Charset == NULL) Mime->Charset = NewStrBuf();
1807                 StrBufExtract_NextToken(Mime->Charset, Buf, &Ptr, '|');
1808
1809                 if (Mime->Data == NULL)
1810                         Mime->Data = NewStrBufPlain(NULL, bytes);
1811                 StrBuf_ServGetBLOBBuffered(Mime->Data, bytes);
1812         }
1813         else {
1814                 FlushStrBuf(Mime->Data);
1815                 /* TODO XImportant message */
1816         }
1817         FreeStrBuf(&Buf);
1818 }
1819
1820
1821 void view_mimepart(void) {
1822         mimepart(0);
1823 }
1824
1825 void download_mimepart(void) {
1826         mimepart(1);
1827 }
1828
1829 void view_postpart(void) {
1830         StrBuf *filename = NewStrBuf();
1831         StrBuf *partnum = NewStrBuf();
1832
1833         StrBufExtract_token(partnum, WC->Hdr->HR.ReqLine, 0, '/');
1834         StrBufExtract_token(filename, WC->Hdr->HR.ReqLine, 1, '/');
1835
1836         postpart(partnum, filename, 0);
1837
1838         FreeStrBuf(&filename);
1839         FreeStrBuf(&partnum);
1840 }
1841
1842 void download_postpart(void) {
1843         StrBuf *filename = NewStrBuf();
1844         StrBuf *partnum = NewStrBuf();
1845
1846         StrBufExtract_token(partnum, WC->Hdr->HR.ReqLine, 0, '/');
1847         StrBufExtract_token(filename, WC->Hdr->HR.ReqLine, 1, '/');
1848
1849         postpart(partnum, filename, 1);
1850
1851         FreeStrBuf(&filename);
1852         FreeStrBuf(&partnum);
1853 }
1854
1855
1856
1857 void show_num_attachments(void) {
1858         wc_printf("%d", GetCount(WC->attachments));
1859 }
1860
1861
1862 void h_readnew(void) { readloop(readnew, eUseDefault);}
1863 void h_readold(void) { readloop(readold, eUseDefault);}
1864 void h_readfwd(void) { readloop(readfwd, eUseDefault);}
1865 void h_headers(void) { readloop(headers, eUseDefault);}
1866 void h_do_search(void) { readloop(do_search, eUseDefault);}
1867 void h_readgt(void) { readloop(readgt, eUseDefault);}
1868 void h_readlt(void) { readloop(readlt, eUseDefault);}
1869
1870 void jsonMessageListHdr(void)
1871 {
1872         /* TODO: make a generic function */
1873         hprintf("HTTP/1.1 200 OK\r\n");
1874         hprintf("Content-type: application/json; charset=utf-8\r\n");
1875         hprintf("Server: %s / %s\r\n", PACKAGE_STRING, ChrPtr(WC->serv_info->serv_software));
1876         hprintf("Connection: close\r\n");
1877         hprintf("Pragma: no-cache\r\nCache-Control: no-store\r\nExpires:-1\r\n");
1878         begin_burst();
1879 }
1880
1881
1882 /* Output message list in JSON format */
1883 void jsonMessageList(void) {
1884         const StrBuf *room = sbstr("room");
1885         long oper = (havebstr("query")) ? do_search : readnew;
1886         WC->is_ajax = 1;
1887         gotoroom(room);
1888         readloop(oper, eUseDefault);
1889         WC->is_ajax = 0;
1890 }
1891
1892 void RegisterReadLoopHandlerset(
1893         int RoomType,
1894         GetParamsGetServerCall_func GetParamsGetServerCall,
1895         PrintViewHeader_func PrintViewHeader,
1896         load_msg_ptrs_detailheaders LH,
1897         LoadMsgFromServer_func LoadMsgFromServer,
1898         RenderView_or_Tail_func RenderView_or_Tail,
1899         View_Cleanup_func ViewCleanup
1900         )
1901 {
1902         RoomRenderer *Handler;
1903
1904         Handler = (RoomRenderer*) malloc(sizeof(RoomRenderer));
1905
1906         Handler->RoomType = RoomType;
1907         Handler->GetParamsGetServerCall = GetParamsGetServerCall;
1908         Handler->PrintViewHeader = PrintViewHeader;
1909         Handler->LoadMsgFromServer = LoadMsgFromServer;
1910         Handler->RenderView_or_Tail = RenderView_or_Tail;
1911         Handler->ViewCleanup = ViewCleanup;
1912         Handler->LHParse = LH;
1913
1914         Put(ReadLoopHandler, IKEY(RoomType), Handler, NULL);
1915 }
1916
1917 void
1918 InitModule_MSG
1919 (void)
1920 {
1921         RegisterPreference("use_sig",
1922                            _("Attach signature to email messages?"),
1923                            PRF_YESNO,
1924                            NULL);
1925         RegisterPreference("signature", _("Use this signature:"), PRF_QP_STRING, NULL);
1926         RegisterPreference("default_header_charset",
1927                            _("Default character set for email headers:"),
1928                            PRF_STRING,
1929                            NULL);
1930         RegisterPreference("defaultfrom", _("Preferred email address"), PRF_STRING, NULL);
1931         RegisterPreference("defaultname",
1932                            _("Preferred display name for email messages"),
1933                            PRF_STRING,
1934                            NULL);
1935         RegisterPreference("defaulthandle",
1936                            _("Preferred display name for bulletin board posts"),
1937                            PRF_STRING,
1938                            NULL);
1939         RegisterPreference("mailbox",_("Mailbox view mode"), PRF_STRING, NULL);
1940
1941         WebcitAddUrlHandler(HKEY("readnew"), "", 0, h_readnew, ANONYMOUS|NEED_URL);
1942         WebcitAddUrlHandler(HKEY("readold"), "", 0, h_readold, ANONYMOUS|NEED_URL);
1943         WebcitAddUrlHandler(HKEY("readfwd"), "", 0, h_readfwd, ANONYMOUS|NEED_URL);
1944         WebcitAddUrlHandler(HKEY("headers"), "", 0, h_headers, NEED_URL);
1945         WebcitAddUrlHandler(HKEY("readgt"), "", 0, h_readgt, ANONYMOUS|NEED_URL);
1946         WebcitAddUrlHandler(HKEY("readlt"), "", 0, h_readlt, ANONYMOUS|NEED_URL);
1947         WebcitAddUrlHandler(HKEY("do_search"), "", 0, h_do_search, 0);
1948         WebcitAddUrlHandler(HKEY("display_enter"), "", 0, display_enter, 0);
1949         WebcitAddUrlHandler(HKEY("post"), "", 0, post_message, PROHIBIT_STARTPAGE);
1950         WebcitAddUrlHandler(HKEY("move_msg"), "", 0, move_msg, PROHIBIT_STARTPAGE);
1951         WebcitAddUrlHandler(HKEY("delete_msg"), "", 0, delete_msg, PROHIBIT_STARTPAGE);
1952         WebcitAddUrlHandler(HKEY("msg"), "", 0, embed_message, NEED_URL);
1953         WebcitAddUrlHandler(HKEY("message"), "", 0, handle_one_message, NEED_URL|XHTTP_COMMANDS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
1954         WebcitAddUrlHandler(HKEY("printmsg"), "", 0, print_message, NEED_URL);
1955         WebcitAddUrlHandler(HKEY("msgheaders"), "", 0, display_headers, NEED_URL);
1956
1957         WebcitAddUrlHandler(HKEY("mimepart"), "", 0, view_mimepart, NEED_URL);
1958         WebcitAddUrlHandler(HKEY("mimepart_download"), "", 0, download_mimepart, NEED_URL);
1959         WebcitAddUrlHandler(HKEY("postpart"), "", 0, view_postpart, NEED_URL|PROHIBIT_STARTPAGE);
1960         WebcitAddUrlHandler(HKEY("postpart_download"), "", 0, download_postpart, NEED_URL|PROHIBIT_STARTPAGE);
1961         WebcitAddUrlHandler(HKEY("upload_attachment"), "", 0, upload_attachment, AJAX);
1962         WebcitAddUrlHandler(HKEY("remove_attachment"), "", 0, remove_attachment, AJAX);
1963         WebcitAddUrlHandler(HKEY("show_num_attachments"), "", 0, show_num_attachments, AJAX);
1964
1965         /* json */
1966         WebcitAddUrlHandler(HKEY("roommsgs"), "", 0, jsonMessageList,0);
1967
1968         l_subj = FourHash("subj", 4);
1969         l_wefw = FourHash("wefw", 4);
1970         l_msgn = FourHash("msgn", 4);
1971         l_from = FourHash("from", 4);
1972         l_rcpt = FourHash("rcpt", 4);
1973         l_cccc = FourHash("cccc", 4);
1974         l_node = FourHash("node", 4);
1975         l_rfca = FourHash("rfca", 4);
1976
1977         return ;
1978 }
1979
1980 void
1981 SessionDetachModule_MSG
1982 (wcsession *sess)
1983 {
1984         DeleteHash(&sess->summ);
1985 }