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 SubTP;
 192         StrBuf *Error = NULL;
 193
 194         Buf = NewStrBuf();
 195         FoundCharset = NewStrBuf();
 196         Msg = (message_summary *)malloc(sizeof(message_summary));
 197         memset(Msg, 0, sizeof(message_summary));
 198         Msg->msgnum = msgnum;
 199         Msg->PartNum = PartNum;
 200         Msg->MsgBody =  (wc_mime_attachment*) malloc(sizeof(wc_mime_attachment));
 201         memset(Msg->MsgBody, 0, sizeof(wc_mime_attachment));
 202         Msg->MsgBody->msgnum = msgnum;
 203
 204         if (!load_message(Msg, FoundCharset, &Error)) {
 205                 StrBufAppendBuf(Target, Error, 0);
 206                 FreeStrBuf(&Error);
 207         }
 208
 209         /* Extract just the content-type (omit attributes such as "charset") */
 210         StrBufExtract_token(Buf, Msg->MsgBody->ContentType, 0, ';');
 211         StrBufTrim(Buf);
 212         StrBufLowerCase(Buf);
 213
 214         /* Locate a renderer capable of converting this MIME part into HTML */
 215         if (GetHash(MimeRenderHandler, SKEY(Buf), &vHdr) &&
 216             (vHdr != NULL)) {
 217                 RenderMimeFuncStruct *Render;
 218                 Render = (RenderMimeFuncStruct*)vHdr;
 219                 Render->f(Msg->MsgBody, NULL, FoundCharset);
 220         }
 221
 222         if (StrLength(Msg->reply_references)> 0) {
 223                 /* Trim down excessively long lists of thread references.  We eliminate the
 224                  * second one in the list so that the thread root remains intact.
 225                  */
 226                 int rrtok = num_tokens(ChrPtr(Msg->reply_references), '|');
 227                 int rrlen = StrLength(Msg->reply_references);
 228                 if ( ((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10) ) {
 229                         StrBufRemove_token(Msg->reply_references, 1, '|');
 230                 }
 231         }
 232
 233         /* now check if we need to translate some mimeparts, and remove the duplicate */
 234         it = GetNewHashPos(Msg->AllAttach, 0);
 235         while (GetNextHashPos(Msg->AllAttach, it, &len, &Key, &vMime) &&
 236                (vMime != NULL)) {
 237                 wc_mime_attachment *Mime = (wc_mime_attachment*) vMime;
 238                 evaluate_mime_part(Msg, Mime);
 239         }
 240         DeleteHashPos(&it);
 241         StackContext(NULL, &SubTP, Msg, CTX_MAILSUM, 0, NULL);
 242         {
 243                 *OutMime = DoTemplate(tmpl, tmpllen, Target, &SubTP);
 244         }
 245         UnStackContext(&SubTP);
 246
 247         DestroyMessageSummary(Msg);
 248         FreeStrBuf(&FoundCharset);
 249         FreeStrBuf(&Buf);
 250         return 1;
 251 }
 252
 253
 254 long
 255 HttpStatus(long CitadelStatus)
 256 {
 257         long httpstatus = 502;
 258
 259         switch (MAJORCODE(CitadelStatus))
 260         {
 261         case LISTING_FOLLOWS:
 262         case CIT_OK:
 263                 httpstatus = 201;
 264                 break;
 265         case ERROR:
 266                 switch (MINORCODE(CitadelStatus))
 267                 {
 268                 case INTERNAL_ERROR:
 269                         httpstatus = 403;
 270                         break;
 271
 272                 case TOO_BIG:
 273                 case ILLEGAL_VALUE:
 274                 case HIGHER_ACCESS_REQUIRED:
 275                 case MAX_SESSIONS_EXCEEDED:
 276                 case RESOURCE_BUSY:
 277                 case RESOURCE_NOT_OPEN:
 278                 case NOT_HERE:
 279                 case INVALID_FLOOR_OPERATION:
 280                 case FILE_NOT_FOUND:
 281                 case ROOM_NOT_FOUND:
 282                         httpstatus = 409;
 283                         break;
 284
 285                 case MESSAGE_NOT_FOUND:
 286                 case ALREADY_EXISTS:
 287                         httpstatus = 403;
 288                         break;
 289
 290                 case NO_SUCH_SYSTEM:
 291                         httpstatus = 502;
 292                         break;
 293
 294                 default:
 295                 case CMD_NOT_SUPPORTED:
 296                 case PASSWORD_REQUIRED:
 297                 case ALREADY_LOGGED_IN:
 298                 case USERNAME_REQUIRED:
 299                 case NOT_LOGGED_IN:
 300                 case SERVER_SHUTTING_DOWN:
 301                 case NO_SUCH_USER:
 302                 case ASYNC_GEXP:
 303                         httpstatus = 502;
 304                         break;
 305                 }
 306                 break;
 307
 308         default:
 309         case BINARY_FOLLOWS:
 310         case SEND_BINARY:
 311         case START_CHAT_MODE:
 312         case ASYNC_MSG:
 313         case MORE_DATA:
 314         case SEND_LISTING:
 315                 httpstatus = 502; /* aeh... whut? */
 316                 break;
 317         }
 318
 319         return httpstatus;
 320 }
 321
 322 /*
 323  * Unadorned HTML output of an individual message, suitable
 324  * for placing in a hidden iframe, for printing, or whatever
 325  */
 326 void handle_one_message(void)
 327 {
 328         long CitStatus;
 329         int CopyMessage = 0;
 330         const StrBuf *Destination;
 331         void *vLine;
 332         const StrBuf *Mime;
 333         long msgnum = 0L;
 334         wcsession *WCC = WC;
 335         const StrBuf *Tmpl;
 336         StrBuf *CmdBuf = NULL;
 337         const char *pMsg;
 338
 339
 340         pMsg = strchr(ChrPtr(WCC->Hdr->HR.ReqLine), '/');
 341         if (pMsg == NULL) {
 342                 HttpStatus(CitStatus);
 343                 return;
 344         }
 345
 346         msgnum = atol(pMsg + 1);
 347         StrBufCutAt(WCC->Hdr->HR.ReqLine, 0, pMsg);
 348         gotoroom(WCC->Hdr->HR.ReqLine);
 349         switch (WCC->Hdr->HR.eReqType)
 350         {
 351         case eGET:
 352         case ePOST:
 353                 Tmpl = sbstr("template");
 354                 if (StrLength(Tmpl) > 0)
 355                         read_message(WCC->WBuf, SKEY(Tmpl), msgnum, NULL, &Mime);
 356                 else
 357                         read_message(WCC->WBuf, HKEY("view_message"), msgnum, NULL, &Mime);
 358                 http_transmit_thing(ChrPtr(Mime), 0);
 359                 break;
 360         case eDELETE:
 361                 CmdBuf = NewStrBuf ();
 362                 if ((WCC->CurRoom.RAFlags & UA_ISTRASH) != 0) { /* Delete from Trash is a real delete */
 363                         serv_printf("DELE %ld", msgnum);
 364                 }
 365                 else {                  /* Otherwise move it to Trash */
 366                         serv_printf("MOVE %ld|_TRASH_|0", msgnum);
 367                 }
 368                 StrBuf_ServGetln(CmdBuf);
 369                 GetServerStatusMsg(CmdBuf, &CitStatus, 1, 0);
 370                 HttpStatus(CitStatus);
 371                 break;
 372         case eCOPY:
 373                 CopyMessage = 1;
 374         case eMOVE:
 375                 if (GetHash(WCC->Hdr->HTTPHeaders, HKEY("DESTINATION"), &vLine) &&
 376                     (vLine!=NULL)) {
 377                         Destination = (StrBuf*) vLine;
 378                         serv_printf("MOVE %ld|%s|%d", msgnum, ChrPtr(Destination), CopyMessage);
 379                         StrBuf_ServGetln(CmdBuf);
 380                         GetServerStatusMsg(CmdBuf, NULL, 1, 0);
 381                         GetServerStatus(CmdBuf, &CitStatus);
 382                         HttpStatus(CitStatus);
 383                 }
 384                 else
 385                         HttpStatus(500);
 386                 break;
 387         default:
 388                 break;
 389
 390         }
 391 }
 392
 393
 394 /*
 395  * Unadorned HTML output of an individual message, suitable
 396  * for placing in a hidden iframe, for printing, or whatever
 397  */
 398 void embed_message(void) {
 399         const StrBuf *Mime;
 400         long msgnum = 0L;
 401         wcsession *WCC = WC;
 402         const StrBuf *Tmpl;
 403         StrBuf *CmdBuf = NULL;
 404
 405         msgnum = StrBufExtract_long(WCC->Hdr->HR.ReqLine, 0, '/');
 406         if (msgnum <= 0) return;
 407
 408         switch (WCC->Hdr->HR.eReqType)
 409         {
 410         case eGET:
 411         case ePOST:
 412                 Tmpl = sbstr("template");
 413                 if (StrLength(Tmpl) > 0)
 414                         read_message(WCC->WBuf, SKEY(Tmpl), msgnum, NULL, &Mime);
 415                 else
 416                         read_message(WCC->WBuf, HKEY("view_message"), msgnum, NULL, &Mime);
 417                 http_transmit_thing(ChrPtr(Mime), 0);
 418                 break;
 419         case eDELETE:
 420                 CmdBuf = NewStrBuf ();
 421                 if ((WCC->CurRoom.RAFlags & UA_ISTRASH) != 0) { /* Delete from Trash is a real delete */
 422                         serv_printf("DELE %ld", msgnum);
 423                 }
 424                 else {                  /* Otherwise move it to Trash */
 425                         serv_printf("MOVE %ld|_TRASH_|0", msgnum);
 426                 }
 427                 StrBuf_ServGetln(CmdBuf);
 428                 GetServerStatusMsg(CmdBuf, NULL, 1, 0);
 429                 break;
 430         default:
 431                 break;
 432
 433         }
 434 }
 435
 436
 437 /*
 438  * Printable view of a message
 439  */
 440 void print_message(void) {
 441         long msgnum = 0L;
 442         const StrBuf *Mime;
 443
 444         msgnum = StrBufExtract_long(WC->Hdr->HR.ReqLine, 0, '/');
 445         output_headers(0, 0, 0, 0, 0, 0);
 446
 447         hprintf("Content-type: text/html\r\n"
 448                 "Server: " PACKAGE_STRING "\r\n"
 449                 "Connection: close\r\n");
 450
 451         begin_burst();
 452
 453         read_message(WC->WBuf, HKEY("view_message_print"), msgnum, NULL, &Mime);
 454
 455         wDumpContent(0);
 456 }
 457
 458 /*
 459  * Display a message's headers
 460  */
 461 void display_headers(void) {
 462         long msgnum = 0L;
 463         char buf[1024];
 464
 465         msgnum = StrBufExtract_long(WC->Hdr->HR.ReqLine, 0, '/');
 466         output_headers(0, 0, 0, 0, 0, 0);
 467
 468         hprintf("Content-type: text/plain\r\n"
 469                 "Server: %s\r\n"
 470                 "Connection: close\r\n",
 471                 PACKAGE_STRING);
 472         begin_burst();
 473
 474         serv_printf("MSG2 %ld|3", msgnum);
 475         serv_getln(buf, sizeof buf);
 476         if (buf[0] == '1') {
 477                 while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 478                         wc_printf("%s\n", buf);
 479                 }
 480         }
 481
 482         wDumpContent(0);
 483 }
 484
 485
 486 message_summary *ReadOneMessageSummary(StrBuf *RawMessage, const char *DefaultSubject, long MsgNum)
 487 {
 488         void                 *vEval;
 489         MsgPartEvaluatorStruct  *Eval;
 490         message_summary      *Msg;
 491         StrBuf *Buf;
 492         const char *buf;
 493         const char *ebuf;
 494         int nBuf;
 495         long len;
 496
 497         Buf = NewStrBuf();
 498
 499         serv_printf("MSG0 %ld|1", MsgNum);      /* ask for headers only */
 500
 501         StrBuf_ServGetln(Buf);
 502         if (GetServerStatus(Buf, NULL) == 1) {
 503                 FreeStrBuf(&Buf);
 504                 return NULL;
 505         }
 506
 507         Msg = (message_summary*)malloc(sizeof(message_summary));
 508         memset(Msg, 0, sizeof(message_summary));
 509         while (len = StrBuf_ServGetln(Buf),
 510                (len >= 0) &&
 511                ((len != 3)  ||
 512                 strcmp(ChrPtr(Buf), "000")))
 513         {
 514                 buf = ChrPtr(Buf);
 515                 ebuf = strchr(ChrPtr(Buf), '=');
 516                 nBuf = ebuf - buf;
 517                 if (GetHash(MsgEvaluators, buf, nBuf, &vEval) && vEval != NULL) {
 518                         Eval = (MsgPartEvaluatorStruct*) vEval;
 519                         StrBufCutLeft(Buf, nBuf + 1);
 520                         Eval->f(Msg, Buf);
 521                 }
 522                 else syslog(1, "Don't know how to handle Message Headerline [%s]", ChrPtr(Buf));
 523         }
 524         return Msg;
 525 }
 526
 527
 528
 529
 530
 531 /*
 532  * load message pointers from the server for a "read messages" operation
 533  *
 534  * servcmd:             the citadel command to send to the citserver
 535  */
 536 int load_msg_ptrs(const char *servcmd,
 537                   const char *filter,
 538                   SharedMessageStatus *Stat,
 539                   load_msg_ptrs_detailheaders LH)
 540 {
 541         wcsession *WCC = WC;
 542         message_summary *Msg;
 543         StrBuf *Buf, *Buf2;
 544         long len;
 545         int n;
 546         int skipit;
 547         const char *Ptr = NULL;
 548         int StatMajor;
 549
 550         Stat->lowest_found = LONG_MAX;
 551         Stat->highest_found = LONG_MIN;
 552
 553         if (WCC->summ != NULL) {
 554                 DeleteHash(&WCC->summ);
 555         }
 556         WCC->summ = NewHash(1, Flathash);
 557
 558         Buf = NewStrBuf();
 559         serv_puts(servcmd);
 560         StrBuf_ServGetln(Buf);
 561         StatMajor = GetServerStatus(Buf, NULL);
 562         switch (StatMajor) {
 563         case 1:
 564                 break;
 565         case 8:
 566                 if (filter != NULL) {
 567                         serv_puts(filter);
 568                         serv_puts("000");
 569                         break;
 570                 }
 571                 /* fall back to empty filter in case of we were fooled... */
 572                 serv_puts("");
 573                 serv_puts("000");
 574                 break;
 575         default:
 576                 FreeStrBuf(&Buf);
 577                 return (Stat->nummsgs);
 578         }
 579         Buf2 = NewStrBuf();
 580         while (len = StrBuf_ServGetln(Buf),
 581                ((len >= 0) &&
 582                 ((len != 3) ||
 583                  strcmp(ChrPtr(Buf), "000")!= 0)))
 584         {
 585                 if (Stat->nummsgs < Stat->maxload) {
 586                         skipit = 0;
 587                         Ptr = NULL;
 588                         Msg = (message_summary*)malloc(sizeof(message_summary));
 589                         memset(Msg, 0, sizeof(message_summary));
 590
 591                         Msg->msgnum = StrBufExtractNext_long(Buf, &Ptr, '|');
 592                         Msg->date = StrBufExtractNext_long(Buf, &Ptr, '|');
 593
 594                         if (Stat->nummsgs == 0) {
 595                                 if (Msg->msgnum < Stat->lowest_found) {
 596                                         Stat->lowest_found = Msg->msgnum;
 597                                 }
 598                                 if (Msg->msgnum > Stat->highest_found) {
 599                                         Stat->highest_found = Msg->msgnum;
 600                                 }
 601                         }
 602
 603                         if ((Msg->msgnum == 0) && (StrLength(Buf) < 32)) {
 604                                 free(Msg);
 605                                 continue;
 606                         }
 607
 608                         /*
 609                          * as citserver probably gives us messages in forward date sorting
 610                          * nummsgs should be the same order as the message date.
 611                          */
 612                         if (Msg->date == 0) {
 613                                 Msg->date = Stat->nummsgs;
 614                                 if (StrLength(Buf) < 32)
 615                                         skipit = 1;
 616                         }
 617                         if ((!skipit) && (LH != NULL)) {
 618                                 if (!LH(Buf, &Ptr, Msg, Buf2)){
 619                                         free(Msg);
 620                                         continue;
 621                                 }
 622                         }
 623                         n = Msg->msgnum;
 624                         Put(WCC->summ, (const char *)&n, sizeof(n), Msg, DestroyMessageSummary);
 625                 }
 626                 Stat->nummsgs++;
 627         }
 628         FreeStrBuf(&Buf2);
 629         FreeStrBuf(&Buf);
 630         return (Stat->nummsgs);
 631 }
 632
 633
 634
 635 /**
 636  * \brief sets FlagToSet for each of ScanMe that appears in MatchMSet
 637  * \param ScanMe List of BasicMsgStruct to be searched it MatchSet
 638  * \param MatchMSet MSet we want to flag
 639  * \param FlagToSet Flag to set on each BasicMsgStruct->Flags if in MSet
 640  */
 641 void SetFlagsFromMSet(HashList *ScanMe, MSet *MatchMSet, int FlagToSet, int Reverse)
 642 {
 643         const char *HashKey;
 644         long HKLen;
 645         HashPos *at;
 646         void *vMsg;
 647         message_summary *Msg;
 648
 649         at = GetNewHashPos(ScanMe, 0);
 650         while (GetNextHashPos(ScanMe, at, &HKLen, &HashKey, &vMsg)) {
 651                 /* Are you a new message, or an old message? */
 652                 Msg = (message_summary*) vMsg;
 653                 if (Reverse && IsInMSetList(MatchMSet, Msg->msgnum)) {
 654                         Msg->Flags = Msg->Flags | FlagToSet;
 655                 }
 656                 else if (!Reverse && !IsInMSetList(MatchMSet, Msg->msgnum)) {
 657                         Msg->Flags = Msg->Flags | FlagToSet;
 658                 }
 659         }
 660         DeleteHashPos(&at);
 661 }
 662
 663
 664 void load_seen_flags(void)
 665 {
 666         StrBuf *OldMsg;
 667         wcsession *WCC = WC;
 668         MSet *MatchMSet;
 669
 670         OldMsg = NewStrBuf();
 671         serv_puts("GTSN");
 672         StrBuf_ServGetln(OldMsg);
 673         if (GetServerStatus(OldMsg, NULL) == 2) {
 674                 StrBufCutLeft(OldMsg, 4);
 675         }
 676         else {
 677                 FreeStrBuf(&OldMsg);
 678                 return;
 679         }
 680
 681         if (ParseMSet(&MatchMSet, OldMsg))
 682         {
 683                 SetFlagsFromMSet(WCC->summ, MatchMSet, MSGFLAG_READ, 0);
 684         }
 685         DeleteMSet(&MatchMSet);
 686         FreeStrBuf(&OldMsg);
 687 }
 688
 689 extern readloop_struct rlid[];
 690
 691 typedef struct _RoomRenderer{
 692         int RoomType;
 693
 694         GetParamsGetServerCall_func GetParamsGetServerCall;
 695
 696         PrintViewHeader_func PrintPageHeader;
 697         PrintViewHeader_func PrintViewHeader;
 698         LoadMsgFromServer_func LoadMsgFromServer;
 699         RenderView_or_Tail_func RenderView_or_Tail;
 700         View_Cleanup_func ViewCleanup;
 701         load_msg_ptrs_detailheaders LHParse;
 702 } RoomRenderer;
 703
 704
 705 /*
 706  * command loop for reading messages
 707  *
 708  * Set oper to "readnew" or "readold" or "readfwd" or "headers" or "readgt" or "readlt" or "do_search"
 709  */
 710 void readloop(long oper, eCustomRoomRenderer ForceRenderer)
 711 {
 712         RoomRenderer *ViewMsg;
 713         void *vViewMsg;
 714         void *vMsg;
 715         message_summary *Msg;
 716         char cmd[256] = "";
 717         char filter[256] = "";
 718         int i, r;
 719         wcsession *WCC = WC;
 720         HashPos *at;
 721         const char *HashKey;
 722         long HKLen;
 723         WCTemplputParams SubTP;
 724         SharedMessageStatus Stat;
 725         void *ViewSpecific;
 726
 727         if (havebstr("is_summary") && (1 == (ibstr("is_summary")))) {
 728                 WCC->CurRoom.view = VIEW_MAILBOX;
 729         }
 730
 731         if (havebstr("view")) {
 732                 WCC->CurRoom.view = ibstr("view");
 733         }
 734
 735         memset(&Stat, 0, sizeof(SharedMessageStatus));
 736         Stat.maxload = 10000;
 737         Stat.lowest_found = (-1);
 738         Stat.highest_found = (-1);
 739         if (ForceRenderer == eUseDefault)
 740                 GetHash(ReadLoopHandler, IKEY(WCC->CurRoom.view), &vViewMsg);
 741         else
 742                 GetHash(ReadLoopHandler, IKEY(ForceRenderer), &vViewMsg);
 743         if (vViewMsg == NULL) {
 744                 WCC->CurRoom.view = VIEW_BBS;
 745                 GetHash(ReadLoopHandler, IKEY(WCC->CurRoom.view), &vViewMsg);
 746         }
 747         if (vViewMsg == NULL) {
 748                 return;                 /* TODO: print message */
 749         }
 750
 751         ViewMsg = (RoomRenderer*) vViewMsg;
 752         if (ViewMsg->PrintPageHeader == NULL)
 753                 output_headers(1, 1, 1, 0, 0, 0);
 754         else
 755                 ViewMsg->PrintPageHeader(&Stat, ViewSpecific);
 756
 757         if (ViewMsg->GetParamsGetServerCall != NULL) {
 758                 r = ViewMsg->GetParamsGetServerCall(
 759                        &Stat,
 760                        &ViewSpecific,
 761                        oper,
 762                        cmd, sizeof(cmd),
 763                        filter, sizeof(filter)
 764                 );
 765         } else {
 766                 r = 0;
 767         }
 768
 769         switch(r)
 770         {
 771         case 400:
 772         case 404:
 773
 774                 return;
 775         case 300: /* the callback hook should do the work for us here, since he knows what to do. */
 776                 return;
 777         case 200:
 778         default:
 779                 break;
 780         }
 781         if (!IsEmptyStr(cmd)) {
 782                 const char *p = NULL;
 783                 if (!IsEmptyStr(filter))
 784                         p = filter;
 785                 Stat.nummsgs = load_msg_ptrs(cmd, p, &Stat, ViewMsg->LHParse);
 786         }
 787
 788         if (Stat.sortit) {
 789                 CompareFunc SortIt;
 790                 StackContext(NULL, &SubTP, NULL, CTX_MAILSUM, 0, NULL);
 791                 {
 792                         SortIt =  RetrieveSort(&SubTP,
 793                                                NULL, 0,
 794                                                HKEY("date"),
 795                                                Stat.defaultsortorder);
 796                 }
 797                 UnStackContext(&SubTP);
 798                 if (SortIt != NULL)
 799                         SortByPayload(WCC->summ, SortIt);
 800         }
 801         if (Stat.startmsg < 0) {
 802                 Stat.startmsg =  0;
 803         }
 804
 805         if (Stat.load_seen) load_seen_flags();
 806
 807         /*
 808          * Print any inforation above the message list...
 809          */
 810         if (ViewMsg->PrintViewHeader != NULL)
 811                 ViewMsg->PrintViewHeader(&Stat, &ViewSpecific);
 812
 813         WCC->startmsg =  Stat.startmsg;
 814         WCC->maxmsgs = Stat.maxmsgs;
 815         WCC->num_displayed = 0;
 816
 817         /* Put some helpful data in vars for mailsummary_json */
 818         {
 819                 StrBuf *Foo;
 820
 821                 Foo = NewStrBuf ();
 822                 StrBufPrintf(Foo, "%ld", Stat.nummsgs);
 823                 PutBstr(HKEY("__READLOOP:TOTALMSGS"), NewStrBufDup(Foo));
 824                 StrBufPrintf(Foo, "%ld", Stat.startmsg);
 825                 PutBstr(HKEY("__READLOOP:STARTMSG"), Foo);
 826         }
 827
 828         /*
 829          * iterate over each message. if we need to load an attachment, do it here.
 830          */
 831
 832         if ((ViewMsg->LoadMsgFromServer != NULL) &&
 833             (!IsEmptyStr(cmd)))
 834         {
 835                 at = GetNewHashPos(WCC->summ, 0);
 836                 Stat.num_displayed = i = 0;
 837                 while ( GetNextHashPos(WCC->summ, at, &HKLen, &HashKey, &vMsg)) {
 838                         Msg = (message_summary*) vMsg;
 839                         if ((Msg->msgnum >= Stat.startmsg) && (Stat.num_displayed <= Stat.maxmsgs)) {
 840                                 ViewMsg->LoadMsgFromServer(&Stat,
 841                                                            &ViewSpecific,
 842                                                            Msg,
 843                                                            (Msg->Flags & MSGFLAG_READ) != 0,
 844                                                            i);
 845                         }
 846                         i++;
 847                 }
 848                 DeleteHashPos(&at);
 849         }
 850
 851         /*
 852          * Done iterating the message list. now tasks we want to do after.
 853          */
 854         if (ViewMsg->RenderView_or_Tail != NULL)
 855                 ViewMsg->RenderView_or_Tail(&Stat, &ViewSpecific, oper);
 856
 857         if (ViewMsg->ViewCleanup != NULL)
 858                 ViewMsg->ViewCleanup(&ViewSpecific);
 859
 860         WCC->startmsg = 0;
 861         WCC->maxmsgs = 0;
 862         if (WCC->summ != NULL) {
 863                 DeleteHash(&WCC->summ);
 864         }
 865 }
 866
 867
 868 /*
 869  * Back end for post_message()
 870  * ... this is where the actual message gets transmitted to the server.
 871  */
 872 void post_mime_to_server(void) {
 873         wcsession *WCC = WC;
 874         char top_boundary[SIZ];
 875         char alt_boundary[SIZ];
 876         int is_multipart = 0;
 877         static int seq = 0;
 878         wc_mime_attachment *att;
 879         char *encoded;
 880         size_t encoded_length;
 881         size_t encoded_strlen;
 882         char *txtmail = NULL;
 883         int include_text_alt = 0;       /* Set to nonzero to include multipart/alternative text/plain */
 884
 885         sprintf(top_boundary, "Citadel--Multipart--%s--%04x--%04x",
 886                 ChrPtr(WCC->serv_info->serv_fqdn),
 887                 getpid(),
 888                 ++seq
 889         );
 890         sprintf(alt_boundary, "Citadel--Multipart--%s--%04x--%04x",
 891                 ChrPtr(WCC->serv_info->serv_fqdn),
 892                 getpid(),
 893                 ++seq
 894         );
 895
 896         /* RFC2045 requires this, and some clients look for it... */
 897         serv_puts("MIME-Version: 1.0");
 898         serv_puts("X-Mailer: " PACKAGE_STRING);
 899
 900         /* If there are attachments, we have to do multipart/mixed */
 901         if (GetCount(WCC->attachments) > 0) {
 902                 is_multipart = 1;
 903         }
 904
 905         /* Only do multipart/alternative for mailboxes.  BBS and Wiki rooms don't need it. */
 906         if ((WCC->CurRoom.view == VIEW_MAILBOX) ||
 907             (WCC->CurRoom.view == VIEW_JSON_LIST))
 908         {
 909                 include_text_alt = 1;
 910         }
 911
 912         if (is_multipart) {
 913                 /* Remember, serv_printf() appends an extra newline */
 914                 serv_printf("Content-type: multipart/mixed; boundary=\"%s\"\n", top_boundary);
 915                 serv_printf("This is a multipart message in MIME format.\n");
 916                 serv_printf("--%s", top_boundary);
 917         }
 918
 919         /* Remember, serv_printf() appends an extra newline */
 920         if (include_text_alt) {
 921                 serv_printf("Content-type: multipart/alternative; "
 922                         "boundary=\"%s\"\n", alt_boundary);
 923                 serv_printf("This is a multipart message in MIME format.\n");
 924                 serv_printf("--%s", alt_boundary);
 925
 926                 serv_puts("Content-type: text/plain; charset=utf-8");
 927                 serv_puts("Content-Transfer-Encoding: quoted-printable");
 928                 serv_puts("");
 929                 txtmail = html_to_ascii(bstr("msgtext"), 0, 80, 0);
 930                 text_to_server_qp(txtmail);     /* Transmit message in quoted-printable encoding */
 931                 free(txtmail);
 932
 933                 serv_printf("\n--%s", alt_boundary);
 934         }
 935
 936         serv_puts("Content-type: text/html; charset=utf-8");
 937         serv_puts("Content-Transfer-Encoding: quoted-printable");
 938         serv_puts("");
 939         serv_puts("<html><body>\r\n");
 940         text_to_server_qp(bstr("msgtext"));     /* Transmit message in quoted-printable encoding */
 941         serv_puts("</body></html>\r\n");
 942
 943         if (include_text_alt) {
 944                 serv_printf("--%s--", alt_boundary);
 945         }
 946
 947         if (is_multipart) {
 948                 long len;
 949                 const char *Key;
 950                 void *vAtt;
 951                 HashPos  *it;
 952
 953                 /* Add in the attachments */
 954                 it = GetNewHashPos(WCC->attachments, 0);
 955                 while (GetNextHashPos(WCC->attachments, it, &len, &Key, &vAtt)) {
 956                         att = (wc_mime_attachment *)vAtt;
 957                         if (att->length == 0)
 958                                 continue;
 959                         encoded_length = ((att->length * 150) / 100);
 960                         encoded = malloc(encoded_length);
 961                         if (encoded == NULL) break;
 962                         encoded_strlen = CtdlEncodeBase64(encoded, ChrPtr(att->Data), StrLength(att->Data), 1);
 963
 964                         serv_printf("--%s", top_boundary);
 965                         serv_printf("Content-type: %s", ChrPtr(att->ContentType));
 966                         serv_printf("Content-disposition: attachment; filename=\"%s\"", ChrPtr(att->FileName));
 967                         serv_puts("Content-transfer-encoding: base64");
 968                         serv_puts("");
 969                         serv_write(encoded, encoded_strlen);
 970                         serv_puts("");
 971                         serv_puts("");
 972                         free(encoded);
 973                 }
 974                 serv_printf("--%s--", top_boundary);
 975                 DeleteHashPos(&it);
 976         }
 977
 978         serv_puts("000");
 979 }
 980
 981
 982 /*
 983  * Post message (or don't post message)
 984  *
 985  * Note regarding the "dont_post" variable:
 986  * A random value (actually, it's just a timestamp) is inserted as a hidden
 987  * field called "postseq" when the display_enter page is generated.  This
 988  * value is checked when posting, using the static variable dont_post.  If a
 989  * user attempts to post twice using the same dont_post value, the message is
 990  * discarded.  This prevents the accidental double-saving of the same message
 991  * if the user happens to click the browser "back" button.
 992  */
 993 void post_message(void)
 994 {
 995         StrBuf *UserName;
 996         StrBuf *EmailAddress;
 997         StrBuf *EncBuf;
 998         char buf[1024];
 999         StrBuf *encoded_subject = NULL;
1000         static long dont_post = (-1L);
1001         int is_anonymous = 0;
1002         const StrBuf *display_name = NULL;
1003         wcsession *WCC = WC;
1004         StrBuf *Buf;
1005
1006         if (havebstr("force_room")) {
1007                 gotoroom(sbstr("force_room"));
1008         }
1009
1010         if (havebstr("display_name")) {
1011                 display_name = sbstr("display_name");
1012                 if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1013                         display_name = NULL;
1014                         is_anonymous = 1;
1015                 }
1016         }
1017
1018         if (!strcasecmp(bstr("submit_action"), "cancel")) {
1019                 AppendImportantMessage(_("Cancelled.  Message was not posted."), -1);
1020         } else if (lbstr("postseq") == dont_post) {
1021                 AppendImportantMessage(
1022                         _("Automatically cancelled because you have already "
1023                           "saved this message."), -1);
1024         } else {
1025                 const char CMD[] = "ENT0 1|%s|%d|4|%s|%s||%s|%s|%s|%s|%s";
1026                 StrBuf *Recp = NULL;
1027                 StrBuf *Cc = NULL;
1028                 StrBuf *Bcc = NULL;
1029                 char *wikipage = NULL;
1030                 const StrBuf *my_email_addr = NULL;
1031                 StrBuf *CmdBuf = NULL;
1032                 StrBuf *references = NULL;
1033                 int saving_to_drafts = 0;
1034                 long HeaderLen = 0;
1035
1036                 saving_to_drafts = !strcasecmp(bstr("submit_action"), "draft");
1037                 Buf = NewStrBuf();
1038
1039                 if (saving_to_drafts) {
1040                         /* temporarily change to the drafts room */
1041                         serv_puts("GOTO _DRAFTS_");
1042                         StrBuf_ServGetln(Buf);
1043                         if (GetServerStatusMsg(Buf, NULL, 1, 2) != 2) {
1044                                 /* You probably don't even have a dumb Drafts folder */
1045                                 syslog(9, "%s:%d: server save to drafts error: %s\n", __FILE__, __LINE__, ChrPtr(Buf) + 4);
1046                                 AppendImportantMessage(_("Saved to Drafts failed: "), -1);
1047                                 display_enter();
1048                                 FreeStrBuf(&Buf);
1049                                 return;
1050                         }
1051                 }
1052
1053                 if (havebstr("references"))
1054                 {
1055                         const StrBuf *ref = sbstr("references");
1056                         references = NewStrBufDup(ref);
1057                         if (*ChrPtr(references) == '|') {       /* remove leading '|' if present */
1058                                 StrBufCutLeft(references, 1);
1059                         }
1060                         StrBufReplaceChars(references, '|', '!');
1061                 }
1062                 if (havebstr("subject")) {
1063                         const StrBuf *Subj;
1064                         /*
1065                          * make enough room for the encoded string;
1066                          * plus the QP header
1067                          */
1068                         Subj = sbstr("subject");
1069
1070                         StrBufRFC2047encode(&encoded_subject, Subj);
1071                 }
1072                 UserName = NewStrBuf();
1073                 EmailAddress = NewStrBuf();
1074                 EncBuf = NewStrBuf();
1075
1076                 Recp = StrBufSanitizeEmailRecipientVector(sbstr("recp"), UserName, EmailAddress, EncBuf);
1077                 Cc = StrBufSanitizeEmailRecipientVector(sbstr("cc"), UserName, EmailAddress, EncBuf);
1078                 Bcc = StrBufSanitizeEmailRecipientVector(sbstr("bcc"), UserName, EmailAddress, EncBuf);
1079
1080                 FreeStrBuf(&UserName);
1081                 FreeStrBuf(&EmailAddress);
1082                 FreeStrBuf(&EncBuf);
1083
1084                 wikipage = strdup(bstr("page"));
1085                 str_wiki_index(wikipage);
1086                 my_email_addr = sbstr("my_email_addr");
1087
1088                 HeaderLen = StrLength(Recp) +
1089                         StrLength(encoded_subject) +
1090                         StrLength(Cc) +
1091                         StrLength(Bcc) +
1092                         strlen(wikipage) +
1093                         StrLength(my_email_addr) +
1094                         StrLength(references);
1095                 CmdBuf = NewStrBufPlain(NULL, sizeof (CMD) + HeaderLen);
1096                 StrBufPrintf(CmdBuf,
1097                              CMD,
1098                              saving_to_drafts?"":ChrPtr(Recp),
1099                              is_anonymous,
1100                              ChrPtr(encoded_subject),
1101                              ChrPtr(display_name),
1102                              saving_to_drafts?"":ChrPtr(Cc),
1103                              saving_to_drafts?"":ChrPtr(Bcc),
1104                              wikipage,
1105                              ChrPtr(my_email_addr),
1106                              ChrPtr(references));
1107                 FreeStrBuf(&references);
1108                 FreeStrBuf(&encoded_subject);
1109                 free(wikipage);
1110
1111                 if ((HeaderLen + StrLength(sbstr("msgtext")) < 10) &&
1112                     (GetCount(WCC->attachments) == 0)){
1113                         AppendImportantMessage(_("Refusing to post empty message.\n"), -1);
1114                         FreeStrBuf(&CmdBuf);
1115
1116                 }
1117                 else
1118                 {
1119                         syslog(9, "%s\n", ChrPtr(CmdBuf));
1120                         serv_puts(ChrPtr(CmdBuf));
1121                         FreeStrBuf(&CmdBuf);
1122
1123                         StrBuf_ServGetln(Buf);
1124                         if (GetServerStatus(Buf, NULL) == 4) {
1125                                 if (saving_to_drafts) {
1126                                         if (  (havebstr("recp"))
1127                                               || (havebstr("cc"  ))
1128                                               || (havebstr("bcc" )) ) {
1129                                                 /* save recipient headers or room to post to */
1130                                                 serv_printf("To: %s", ChrPtr(Recp));
1131                                                 serv_printf("Cc: %s", ChrPtr(Cc));
1132                                                 serv_printf("Bcc: %s", ChrPtr(Bcc));
1133                                         } else {
1134                                                 serv_printf("X-Citadel-Room: %s", ChrPtr(WCC->CurRoom.name));
1135                                         }
1136                                 }
1137                                 post_mime_to_server();
1138                                 if (saving_to_drafts) {
1139                                         AppendImportantMessage(_("Message has been saved to Drafts.\n"), -1);
1140                                         gotoroom(WCC->CurRoom.name);
1141                                         fixview();
1142                                         readloop(readnew, eUseDefault);
1143                                         FreeStrBuf(&Buf);
1144                                         return;
1145                                 } else if (  (havebstr("recp"))
1146                                              || (havebstr("cc"  ))
1147                                              || (havebstr("bcc" ))
1148                                         ) {
1149                                         AppendImportantMessage(_("Message has been sent.\n"), -1);
1150                                 }
1151                                 else {
1152                                         AppendImportantMessage(_("Message has been posted.\n"), -1);
1153                                 }
1154                                 dont_post = lbstr("postseq");
1155                         } else {
1156                                 syslog(9, "%s:%d: server post error: %s", __FILE__, __LINE__, ChrPtr(Buf) + 4);
1157                                 AppendImportantMessage(ChrPtr(Buf) + 4, StrLength(Buf) - 4);
1158                                 display_enter();
1159                                 if (saving_to_drafts) gotoroom(WCC->CurRoom.name);
1160                                 FreeStrBuf(&Recp);
1161                                 FreeStrBuf(&Buf);
1162                                 FreeStrBuf(&Cc);
1163                                 FreeStrBuf(&Bcc);
1164                                 return;
1165                         }
1166                 }
1167                 FreeStrBuf(&Recp);
1168                 FreeStrBuf(&Buf);
1169                 FreeStrBuf(&Cc);
1170                 FreeStrBuf(&Bcc);
1171         }
1172
1173         DeleteHash(&WCC->attachments);
1174
1175         /*
1176          *  We may have been supplied with instructions regarding the location
1177          *  to which we must return after posting.  If found, go there.
1178          */
1179         if (havebstr("return_to")) {
1180                 http_redirect(bstr("return_to"));
1181         }
1182         /*
1183          *  If we were editing a page in a wiki room, go to that page now.
1184          */
1185         else if (havebstr("page")) {
1186                 snprintf(buf, sizeof buf, "wiki?page=%s", bstr("page"));
1187                 http_redirect(buf);
1188         }
1189         /*
1190          *  Otherwise, just go to the "read messages" loop.
1191          */
1192         else {
1193                 fixview();
1194                 readloop(readnew, eUseDefault);
1195         }
1196 }
1197
1198
1199 /*
1200  * Client is uploading an attachment
1201  */
1202 void upload_attachment(void) {
1203         wcsession *WCC = WC;
1204         const char *pch;
1205         int n;
1206         const char *newn;
1207         long newnlen;
1208         void *v;
1209         wc_mime_attachment *att;
1210
1211         syslog(9, "upload_attachment()\n");
1212         wc_printf("upload_attachment()<br>\n");
1213
1214         if (WCC->upload_length <= 0) {
1215                 syslog(9, "ERROR no attachment was uploaded\n");
1216                 wc_printf("ERROR no attachment was uploaded<br>\n");
1217                 return;
1218         }
1219
1220         syslog(9, "Client is uploading %d bytes\n", WCC->upload_length);
1221         wc_printf("Client is uploading %d bytes<br>\n", WCC->upload_length);
1222         att = malloc(sizeof(wc_mime_attachment));
1223         memset(att, 0, sizeof(wc_mime_attachment ));
1224         att->length = WCC->upload_length;
1225         att->ContentType = NewStrBufPlain(WCC->upload_content_type, -1);
1226         att->FileName = NewStrBufDup(WCC->upload_filename);
1227
1228         if (WCC->attachments == NULL) {
1229                 WCC->attachments = NewHash(1, Flathash);
1230         }
1231
1232         /* And add it to the list. */
1233         n = 0;
1234         if ((GetCount(WCC->attachments) > 0) &&
1235             GetHashAt(WCC->attachments,
1236                       GetCount(WCC->attachments) -1,
1237                       &newnlen, &newn, &v))
1238             n = *((int*) newn) + 1;
1239         Put(WCC->attachments, IKEY(n), att, DestroyMime);
1240
1241         /*
1242          * Mozilla sends a simple filename, which is what we want,
1243          * but Satan's Browser sends an entire pathname.  Reduce
1244          * the path to just a filename if we need to.
1245          */
1246         pch = strrchr(ChrPtr(att->FileName), '/');
1247         if (pch != NULL) {
1248                 StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1249         }
1250         pch = strrchr(ChrPtr(att->FileName), '\\');
1251         if (pch != NULL) {
1252                 StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1253         }
1254
1255         /*
1256          * Transfer control of this memory from the upload struct
1257          * to the attachment struct.
1258          */
1259         att->Data = WCC->upload;
1260         WCC->upload = NULL;
1261         WCC->upload_length = 0;
1262 }
1263
1264
1265 /*
1266  * Remove an attachment from the message currently being composed.
1267  *
1268  * Currently we identify the attachment to be removed by its filename.
1269  * There is probably a better way to do this.
1270  */
1271 void remove_attachment(void) {
1272         wcsession *WCC = WC;
1273         wc_mime_attachment *att;
1274         void *vAtt;
1275         StrBuf *WhichAttachment;
1276         HashPos *at;
1277         long len;
1278         const char *key;
1279
1280         WhichAttachment = NewStrBufDup(sbstr("which_attachment"));
1281         StrBufUnescape(WhichAttachment, 0);
1282         at = GetNewHashPos(WCC->attachments, 0);
1283         do {
1284                 GetHashPos(WCC->attachments, at, &len, &key, &vAtt);
1285
1286                 att = (wc_mime_attachment*) vAtt;
1287                 if ((att != NULL) &&
1288                     (strcmp(ChrPtr(WhichAttachment),
1289                             ChrPtr(att->FileName)   ) == 0))
1290                 {
1291                         DeleteEntryFromHash(WCC->attachments, at);
1292                         break;
1293                 }
1294         }
1295         while (NextHashPos(WCC->attachments, at));
1296         FreeStrBuf(&WhichAttachment);
1297         wc_printf("remove_attachment() completed\n");
1298 }
1299
1300
1301 long FourHash(const char *key, long length)
1302 {
1303         int i;
1304         long ret = 0;
1305         const unsigned char *ptr = (const unsigned char*)key;
1306
1307         for (i = 0; i < 4; i++, ptr ++)
1308                 ret = (ret << 8) |
1309                         ( ((*ptr >= 'a') &&
1310                            (*ptr <= 'z'))?
1311                           *ptr - 'a' + 'A':
1312                           *ptr);
1313
1314         return ret;
1315 }
1316
1317 long l_subj;
1318 long l_wefw;
1319 long l_msgn;
1320 long l_from;
1321 long l_rcpt;
1322 long l_cccc;
1323 long l_replyto;
1324 long l_node;
1325 long l_rfca;
1326
1327 const char *ReplyToModeStrings [3] = {
1328         "reply",
1329         "replyalle",
1330         "forward"
1331 };
1332 typedef enum _eReplyToNodes {
1333         eReply,
1334         eReplyAll,
1335         eForward
1336 }eReplyToNodes;
1337
1338 /*
1339  * display the message entry screen
1340  */
1341 void display_enter(void)
1342 {
1343         const char *ReplyingModeStr;
1344         eReplyToNodes ReplyMode = eReply;
1345         StrBuf *Line;
1346         long Result;
1347         int rc;
1348         const StrBuf *display_name = NULL;
1349         int recipient_required = 0;
1350         int subject_required = 0;
1351         int is_anonymous = 0;
1352         wcsession *WCC = WC;
1353         int i = 0;
1354         long replying_to;
1355
1356         if (havebstr("force_room")) {
1357                 gotoroom(sbstr("force_room"));
1358         }
1359
1360         display_name = sbstr("display_name");
1361         if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1362                 display_name = NULL;
1363                 is_anonymous = 1;
1364         }
1365
1366         /*
1367          * First, do we have permission to enter messages in this room at all?
1368          */
1369         Line = NewStrBuf();
1370         serv_puts("ENT0 0");
1371         StrBuf_ServGetln(Line);
1372         rc = GetServerStatusMsg(Line, &Result, 0, 2);
1373
1374         if (Result == 570) {            /* 570 means that we need a recipient here */
1375                 recipient_required = 1;
1376         }
1377         else if (rc != 2) {             /* Any other error means that we cannot continue */
1378                 rc = GetServerStatusMsg(Line, &Result, 0, 2);
1379                 fixview();
1380                 readloop(readnew, eUseDefault);
1381                 FreeStrBuf(&Line);
1382                 return;
1383         }
1384
1385         /* Is the server strongly recommending that the user enter a message subject? */
1386         if (StrLength(Line) > 4) {
1387                 subject_required = extract_int(ChrPtr(Line) + 4, 1);
1388         }
1389
1390         /*
1391          * Are we perhaps in an address book view?  If so, then an "enter
1392          * message" command really means "add new entry."
1393          */
1394         if (WCC->CurRoom.defview == VIEW_ADDRESSBOOK) {
1395                 do_edit_vcard(-1, "", NULL, NULL, "",  ChrPtr(WCC->CurRoom.name));
1396                 FreeStrBuf(&Line);
1397                 return;
1398         }
1399
1400         /*
1401          * Are we perhaps in a calendar room?  If so, then an "enter
1402          * message" command really means "add new calendar item."
1403          */
1404         if (WCC->CurRoom.defview == VIEW_CALENDAR) {
1405                 display_edit_event();
1406                 FreeStrBuf(&Line);
1407                 return;
1408         }
1409
1410         /*
1411          * Are we perhaps in a tasks view?  If so, then an "enter
1412          * message" command really means "add new task."
1413          */
1414         if (WCC->CurRoom.defview == VIEW_TASKS) {
1415                 display_edit_task();
1416                 FreeStrBuf(&Line);
1417                 return;
1418         }
1419
1420
1421         ReplyingModeStr = bstr("replying_mode");
1422         if (ReplyingModeStr != NULL) for (i = 0; i < 3; i++) {
1423                         if (strcmp(ReplyingModeStr, ReplyToModeStrings[i]) == 0) {
1424                                 ReplyMode = (eReplyToNodes) i;
1425                                 break;
1426                         }
1427                 }
1428
1429
1430         /*
1431          * If the "replying_to" variable is set, it refers to a message
1432          * number from which we must extract some header fields...
1433          */
1434         replying_to = lbstr("replying_to");
1435         if (replying_to > 0) {
1436                 long len;
1437                 StrBuf *wefw = NULL;
1438                 StrBuf *msgn = NULL;
1439                 StrBuf *from = NULL;
1440                 StrBuf *node = NULL;
1441                 StrBuf *rfca = NULL;
1442                 StrBuf *rcpt = NULL;
1443                 StrBuf *cccc = NULL;
1444                 StrBuf *replyto = NULL;
1445                 serv_printf("MSG0 %ld|1", replying_to);
1446
1447                 StrBuf_ServGetln(Line);
1448                 if (GetServerStatusMsg(Line, NULL, 0, 0) == 1)
1449                         while (len = StrBuf_ServGetln(Line),
1450                                (len >= 0) &&
1451                                ((len != 3)  ||
1452                                 strcmp(ChrPtr(Line), "000")))
1453                         {
1454                                 long which = 0;
1455                                 if ((StrLength(Line) > 4) &&
1456                                     (ChrPtr(Line)[4] == '='))
1457                                         which = FourHash(ChrPtr(Line), 4);
1458
1459                                 if (which == l_subj)
1460                                 {
1461                                         StrBuf *subj = NewStrBuf();
1462                                         StrBuf *FlatSubject;
1463
1464                                         if (ReplyMode == eForward) {
1465                                                 if (strncasecmp(ChrPtr(Line) + 5, "Fw:", 3)) {
1466                                                         StrBufAppendBufPlain(subj, HKEY("Fw: "), 0);
1467                                                 }
1468                                         }
1469                                         else {
1470                                                 if (strncasecmp(ChrPtr(Line) + 5, "Re:", 3)) {
1471                                                         StrBufAppendBufPlain(subj, HKEY("Re: "), 0);
1472                                                 }
1473                                         }
1474                                         StrBufAppendBufPlain(subj,
1475                                                              ChrPtr(Line) + 5,
1476                                                              StrLength(Line) - 5, 0);
1477                                         FlatSubject = NewStrBufPlain(NULL, StrLength(subj));
1478                                         StrBuf_RFC822_to_Utf8(FlatSubject, subj, NULL, NULL);
1479
1480                                         PutBstr(HKEY("subject"), FlatSubject);
1481                                 }
1482
1483                                 else if (which == l_wefw)
1484                                 {
1485                                         int rrtok;
1486                                         int rrlen;
1487
1488                                         wefw = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1489
1490                                         /* Trim down excessively long lists of thread references.  We eliminate the
1491                                          * second one in the list so that the thread root remains intact.
1492                                          */
1493                                         rrtok = num_tokens(ChrPtr(wefw), '|');
1494                                         rrlen = StrLength(wefw);
1495                                         if ( ((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10) ) {
1496                                                 StrBufRemove_token(wefw, 1, '|');
1497                                         }
1498                                 }
1499
1500                                 else if (which == l_msgn) {
1501                                         msgn = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1502                                 }
1503
1504                                 else if (which == l_from) {
1505                                         StrBuf *FlatFrom;
1506                                         from = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1507                                         FlatFrom = NewStrBufPlain(NULL, StrLength(from));
1508                                         StrBuf_RFC822_to_Utf8(FlatFrom, from, NULL, NULL);
1509                                         FreeStrBuf(&from);
1510                                         from = FlatFrom;
1511                                         for (i=0; i<StrLength(from); ++i) {
1512                                                 if (ChrPtr(from)[i] == ',')
1513                                                         StrBufPeek(from, NULL, i, ' ');
1514                                         }
1515                                 }
1516
1517                                 else if (which == l_rcpt) {
1518                                         rcpt = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1519                                 }
1520
1521                                 else if (which == l_cccc) {
1522                                         cccc = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1523                                 }
1524
1525                                 else if (which == l_node) {
1526                                         node = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1527                                 }
1528                                 else if (which == l_replyto) {
1529                                         replyto = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1530                                 }
1531                                 else if (which == l_rfca) {
1532                                         StrBuf *FlatRFCA;
1533                                         rfca = NewStrBufPlain(ChrPtr(Line) + 5, StrLength(Line) - 5);
1534                                         FlatRFCA = NewStrBufPlain(NULL, StrLength(rfca));
1535                                         StrBuf_RFC822_to_Utf8(FlatRFCA, rfca, NULL, NULL);
1536                                         FreeStrBuf(&rfca);
1537                                         rfca = FlatRFCA;
1538                                 }
1539                         }
1540
1541
1542                 if (StrLength(wefw) + StrLength(msgn) > 0) {
1543                         StrBuf *refs = NewStrBuf();
1544                         if (StrLength(wefw) > 0) {
1545                                 StrBufAppendBuf(refs, wefw, 0);
1546                         }
1547                         if ( (StrLength(wefw) > 0) &&
1548                              (StrLength(msgn) > 0) )
1549                         {
1550                                 StrBufAppendBufPlain(refs, HKEY("|"), 0);
1551                         }
1552                         if (StrLength(msgn) > 0) {
1553                                 StrBufAppendBuf(refs, msgn, 0);
1554                         }
1555                         PutBstr(HKEY("references"), refs);
1556                 }
1557
1558                 /*
1559                  * If this is a Reply or a ReplyAll, copy the sender's email into the To: field
1560                  */
1561                 if ((ReplyMode == eReply) || (ReplyMode == eReplyAll))
1562                 {
1563                         StrBuf *to_rcpt;
1564                         if ((StrLength(replyto) > 0) && (ReplyMode == eReplyAll)) {
1565                                 to_rcpt = NewStrBuf();
1566                                 StrBufAppendBuf(to_rcpt, replyto, 0);
1567                         }
1568                         else if (StrLength(rfca) > 0) {
1569                                 to_rcpt = NewStrBuf();
1570                                 StrBufAppendBuf(to_rcpt, from, 0);
1571                                 StrBufAppendBufPlain(to_rcpt, HKEY(" <"), 0);
1572                                 StrBufAppendBuf(to_rcpt, rfca, 0);
1573                                 StrBufAppendBufPlain(to_rcpt, HKEY(">"), 0);
1574                         }
1575                         else {
1576                                 to_rcpt =  from;
1577                                 from = NULL;
1578                                 if (    (StrLength(node) > 0)
1579                                         && (strcasecmp(ChrPtr(node), ChrPtr(WCC->serv_info->serv_nodename)))
1580                                 ) {
1581                                         StrBufAppendBufPlain(to_rcpt, HKEY(" @ "), 0);
1582                                         StrBufAppendBuf(to_rcpt, node, 0);
1583                                 }
1584                         }
1585                         PutBstr(HKEY("recp"), to_rcpt);
1586                 }
1587
1588                 /*
1589                  * Only if this is a ReplyAll, copy all recipients into the Cc: field
1590                  */
1591                 if (ReplyMode == eReplyAll)
1592                 {
1593                         StrBuf *cc_rcpt = rcpt;
1594                         rcpt = NULL;
1595                         if ((StrLength(cccc) > 0) && (StrLength(replyto) == 0))
1596                         {
1597                                 if (cc_rcpt != NULL)  {
1598                                         StrBufAppendPrintf(cc_rcpt, ", ");
1599                                         StrBufAppendBuf(cc_rcpt, cccc, 0);
1600                                 } else {
1601                                         cc_rcpt = cccc;
1602                                         cccc = NULL;
1603                                 }
1604                         }
1605                         if (cc_rcpt != NULL)
1606                                 PutBstr(HKEY("cc"), cc_rcpt);
1607                 }
1608                 FreeStrBuf(&wefw);
1609                 FreeStrBuf(&msgn);
1610                 FreeStrBuf(&from);
1611                 FreeStrBuf(&node);
1612                 FreeStrBuf(&rfca);
1613                 FreeStrBuf(&rcpt);
1614                 FreeStrBuf(&cccc);
1615         }
1616         FreeStrBuf(&Line);
1617         /*
1618          * Otherwise proceed normally.
1619          * Do a custom room banner with no navbar...
1620          */
1621
1622         if (recipient_required) {
1623                 const StrBuf *Recp = NULL;
1624                 const StrBuf *Cc = NULL;
1625                 const StrBuf *Bcc = NULL;
1626                 char *wikipage = NULL;
1627                 StrBuf *CmdBuf = NULL;
1628                 const char CMD[] = "ENT0 0|%s|%d|0||%s||%s|%s|%s";
1629
1630                 Recp = sbstr("recp");
1631                 Cc = sbstr("cc");
1632                 Bcc = sbstr("bcc");
1633                 wikipage = strdup(bstr("page"));
1634                 str_wiki_index(wikipage);
1635
1636                 CmdBuf = NewStrBufPlain(NULL,
1637                                         sizeof (CMD) +
1638                                         StrLength(Recp) +
1639                                         StrLength(display_name) +
1640                                         StrLength(Cc) +
1641                                         StrLength(Bcc) +
1642                                         strlen(wikipage));
1643
1644                 StrBufPrintf(CmdBuf,
1645                              CMD,
1646                              ChrPtr(Recp),
1647                              is_anonymous,
1648                              ChrPtr(display_name),
1649                              ChrPtr(Cc),
1650                              ChrPtr(Bcc),
1651                              wikipage
1652                 );
1653                 serv_puts(ChrPtr(CmdBuf));
1654                 StrBuf_ServGetln(CmdBuf);
1655                 free(wikipage);
1656
1657                 rc = GetServerStatusMsg(CmdBuf, &Result, 0, 0);
1658
1659                 if (    (Result == 570)         /* invalid or missing recipient(s) */
1660                         || (Result == 550)      /* higher access required to send Internet mail */
1661                 ) {
1662                         /* These errors will have been displayed and are excusable */
1663                 }
1664                 else if (rc != 2) {     /* Any other error means that we cannot continue */
1665                         AppendImportantMessage(ChrPtr(CmdBuf) + 4, StrLength(CmdBuf) - 4);
1666                         FreeStrBuf(&CmdBuf);
1667                         fixview();
1668                         readloop(readnew, eUseDefault);
1669                         return;
1670                 }
1671                 FreeStrBuf(&CmdBuf);
1672         }
1673         if (recipient_required)
1674                 PutBstr(HKEY("__RCPTREQUIRED"), NewStrBufPlain(HKEY("1")));
1675         if (recipient_required || subject_required)
1676                 PutBstr(HKEY("__SUBJREQUIRED"), NewStrBufPlain(HKEY("1")));
1677
1678         begin_burst();
1679         output_headers(1, 0, 0, 0, 1, 0);
1680         DoTemplate(HKEY("edit_message"), NULL, &NoCtx);
1681         end_burst();
1682
1683         return;
1684 }
1685
1686 /*
1687  * delete a message
1688  */
1689 void delete_msg(void)
1690 {
1691         long msgid;
1692         StrBuf *Line;
1693
1694         msgid = lbstr("msgid");
1695         Line = NewStrBuf();
1696         if ((WC->CurRoom.RAFlags & UA_ISTRASH) != 0) {  /* Delete from Trash is a real delete */
1697                 serv_printf("DELE %ld", msgid);
1698         }
1699         else {                  /* Otherwise move it to Trash */
1700                 serv_printf("MOVE %ld|_TRASH_|0", msgid);
1701         }
1702
1703         StrBuf_ServGetln(Line);
1704         GetServerStatusMsg(Line, NULL, 1, 0);
1705
1706         fixview();
1707
1708         readloop(readnew, eUseDefault);
1709 }
1710
1711
1712 /*
1713  * move a message to another room
1714  */
1715 void move_msg(void)
1716 {
1717         long msgid;
1718
1719         msgid = lbstr("msgid");
1720
1721         if (havebstr("move_button")) {
1722                 StrBuf *Line;
1723                 serv_printf("MOVE %ld|%s", msgid, bstr("target_room"));
1724                 Line = NewStrBuf();
1725                 StrBuf_ServGetln(Line);
1726                 GetServerStatusMsg(Line, NULL, 1, 0);
1727                 FreeStrBuf(&Line);
1728         } else {
1729                 AppendImportantMessage(_("The message was not moved."), -1);
1730         }
1731
1732         fixview();
1733         readloop(readnew, eUseDefault);
1734 }
1735
1736
1737
1738 /*
1739  * Generic function to output an arbitrary MIME attachment from
1740  * message being composed
1741  *
1742  * partnum              The MIME part to be output
1743  * filename             Fake filename to give
1744  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1745  */
1746 void postpart(StrBuf *partnum, StrBuf *filename, int force_download)
1747 {
1748         void *vPart;
1749         StrBuf *content_type;
1750         wc_mime_attachment *part;
1751         int i;
1752
1753         i = StrToi(partnum);
1754         if (GetHash(WC->attachments, IKEY(i), &vPart) &&
1755             (vPart != NULL)) {
1756                 part = (wc_mime_attachment*) vPart;
1757                 if (force_download) {
1758                         content_type = NewStrBufPlain(HKEY("application/octet-stream"));
1759                 }
1760                 else {
1761                         content_type = NewStrBufDup(part->ContentType);
1762                 }
1763                 StrBufAppendBuf(WC->WBuf, part->Data, 0);
1764                 http_transmit_thing(ChrPtr(content_type), 0);
1765         } else {
1766                 hprintf("HTTP/1.1 404 %s\n", ChrPtr(partnum));
1767                 output_headers(0, 0, 0, 0, 0, 0);
1768                 hprintf("Content-Type: text/plain\r\n");
1769                 begin_burst();
1770                 wc_printf(_("An error occurred while retrieving this part: %s/%s\n"),
1771                         ChrPtr(partnum), ChrPtr(filename));
1772                 end_burst();
1773         }
1774         FreeStrBuf(&content_type);
1775 }
1776
1777
1778 /*
1779  * Generic function to output an arbitrary MIME part from an arbitrary
1780  * message number on the server.
1781  *
1782  * msgnum               Number of the item on the citadel server
1783  * partnum              The MIME part to be output
1784  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1785  */
1786 void mimepart(int force_download)
1787 {
1788         long msgnum;
1789         long ErrorDetail;
1790         StrBuf *att;
1791         wcsession *WCC = WC;
1792         StrBuf *Buf;
1793         off_t bytes;
1794         StrBuf *ContentType = NewStrBufPlain(HKEY("application/octet-stream"));
1795         const char *CT;
1796
1797         att = Buf = NewStrBuf();
1798         msgnum = StrBufExtract_long(WCC->Hdr->HR.ReqLine, 0, '/');
1799         StrBufExtract_token(att, WCC->Hdr->HR.ReqLine, 1, '/');
1800
1801         serv_printf("OPNA %ld|%s", msgnum, ChrPtr(att));
1802         StrBuf_ServGetln(Buf);
1803         if (GetServerStatus(Buf, &ErrorDetail) == 2) {
1804                 StrBufCutLeft(Buf, 4);
1805                 bytes = StrBufExtract_long(Buf, 0, '|');
1806                 if (!force_download) {
1807                         StrBufExtract_token(ContentType, Buf, 3, '|');
1808                 }
1809
1810                 serv_read_binary(WCC->WBuf, bytes, Buf);
1811                 serv_puts("CLOS");
1812                 StrBuf_ServGetln(Buf);
1813                 CT = ChrPtr(ContentType);
1814
1815                 if (!force_download) {
1816                         if (!strcasecmp(ChrPtr(ContentType), "application/octet-stream")) {
1817                                 StrBufExtract_token(Buf, WCC->Hdr->HR.ReqLine, 2, '/');
1818                                 CT = GuessMimeByFilename(SKEY(Buf));
1819                         }
1820                         if (!strcasecmp(ChrPtr(ContentType), "application/octet-stream")) {
1821                                 CT = GuessMimeType(SKEY(WCC->WBuf));
1822                         }
1823                 }
1824                 http_transmit_thing(CT, 0);
1825         } else {
1826                 StrBufCutLeft(Buf, 4);
1827                 switch (ErrorDetail) {
1828                 default:
1829                 case ERROR + MESSAGE_NOT_FOUND:
1830                         hprintf("HTTP/1.1 404 %s\n", ChrPtr(Buf));
1831                         break;
1832                 case ERROR + NOT_LOGGED_IN:
1833                         hprintf("HTTP/1.1 401 %s\n", ChrPtr(Buf));
1834                         break;
1835
1836                 case ERROR + HIGHER_ACCESS_REQUIRED:
1837                         hprintf("HTTP/1.1 403 %s\n", ChrPtr(Buf));
1838                         break;
1839                 case ERROR + INTERNAL_ERROR:
1840                 case ERROR + TOO_BIG:
1841                         hprintf("HTTP/1.1 500 %s\n", ChrPtr(Buf));
1842                         break;
1843                 }
1844                 output_headers(0, 0, 0, 0, 0, 0);
1845                 hprintf("Content-Type: text/plain\r\n");
1846                 begin_burst();
1847                 wc_printf(_("An error occurred while retrieving this part: %s\n"),
1848                         ChrPtr(Buf));
1849                 end_burst();
1850         }
1851         FreeStrBuf(&ContentType);
1852         FreeStrBuf(&Buf);
1853 }
1854
1855
1856 /*
1857  * Read any MIME part of a message, from the server, into memory.
1858  */
1859 StrBuf *load_mimepart(long msgnum, char *partnum)
1860 {
1861         off_t bytes;
1862         StrBuf *Buf;
1863
1864         Buf = NewStrBuf();
1865         serv_printf("DLAT %ld|%s", msgnum, partnum);
1866         StrBuf_ServGetln(Buf);
1867         if (GetServerStatus(Buf, NULL) == 6) {
1868                 StrBufCutLeft(Buf, 4);
1869                 bytes = StrBufExtract_long(Buf, 0, '|');
1870                 FreeStrBuf(&Buf);
1871                 Buf = NewStrBuf();
1872                 StrBuf_ServGetBLOBBuffered(Buf, bytes);
1873                 return(Buf);
1874         }
1875         else {
1876                 FreeStrBuf(&Buf);
1877                 return(NULL);
1878         }
1879 }
1880
1881 /*
1882  * Read any MIME part of a message, from the server, into memory.
1883  */
1884 void MimeLoadData(wc_mime_attachment *Mime)
1885 {
1886         StrBuf *Buf;
1887         const char *Ptr;
1888         off_t bytes;
1889         /* TODO: is there a chance the content type is different from the one we know? */
1890
1891         serv_printf("DLAT %ld|%s", Mime->msgnum, ChrPtr(Mime->PartNum));
1892         Buf = NewStrBuf();
1893         StrBuf_ServGetln(Buf);
1894         if (GetServerStatus(Buf, NULL) == 6) {
1895                 Ptr = &(ChrPtr(Buf)[4]);
1896                 bytes = StrBufExtractNext_long(Buf, &Ptr, '|');
1897                 StrBufSkip_NTokenS(Buf, &Ptr, '|', 3);  /* filename, cbtype, mimetype */
1898                 if (Mime->Charset == NULL) Mime->Charset = NewStrBuf();
1899                 StrBufExtract_NextToken(Mime->Charset, Buf, &Ptr, '|');
1900
1901                 if (Mime->Data == NULL)
1902                         Mime->Data = NewStrBufPlain(NULL, bytes);
1903                 StrBuf_ServGetBLOBBuffered(Mime->Data, bytes);
1904         }
1905         else {
1906                 FlushStrBuf(Mime->Data);
1907                 /* TODO XImportant message */
1908         }
1909         FreeStrBuf(&Buf);
1910 }
1911
1912
1913 void view_mimepart(void) {
1914         mimepart(0);
1915 }
1916
1917 void download_mimepart(void) {
1918         mimepart(1);
1919 }
1920
1921 void view_postpart(void) {
1922         StrBuf *filename = NewStrBuf();
1923         StrBuf *partnum = NewStrBuf();
1924
1925         StrBufExtract_token(partnum, WC->Hdr->HR.ReqLine, 0, '/');
1926         StrBufExtract_token(filename, WC->Hdr->HR.ReqLine, 1, '/');
1927
1928         postpart(partnum, filename, 0);
1929
1930         FreeStrBuf(&filename);
1931         FreeStrBuf(&partnum);
1932 }
1933
1934 void download_postpart(void) {
1935         StrBuf *filename = NewStrBuf();
1936         StrBuf *partnum = NewStrBuf();
1937
1938         StrBufExtract_token(partnum, WC->Hdr->HR.ReqLine, 0, '/');
1939         StrBufExtract_token(filename, WC->Hdr->HR.ReqLine, 1, '/');
1940
1941         postpart(partnum, filename, 1);
1942
1943         FreeStrBuf(&filename);
1944         FreeStrBuf(&partnum);
1945 }
1946
1947
1948
1949 void show_num_attachments(void) {
1950         wc_printf("%d", GetCount(WC->attachments));
1951 }
1952
1953
1954 void h_readnew(void) { readloop(readnew, eUseDefault);}
1955 void h_readold(void) { readloop(readold, eUseDefault);}
1956 void h_readfwd(void) { readloop(readfwd, eUseDefault);}
1957 void h_headers(void) { readloop(headers, eUseDefault);}
1958 void h_do_search(void) { readloop(do_search, eUseDefault);}
1959 void h_readgt(void) { readloop(readgt, eUseDefault);}
1960 void h_readlt(void) { readloop(readlt, eUseDefault);}
1961
1962
1963
1964 /* Output message list in JSON format */
1965 void jsonMessageList(void) {
1966         StrBuf *View = NewStrBuf();
1967         const StrBuf *room = sbstr("room");
1968         long oper = (havebstr("query")) ? do_search : readnew;
1969         StrBufPrintf(View, "%d", VIEW_JSON_LIST);
1970         putbstr("view", View);;
1971         gotoroom(room);
1972         readloop(oper, eUseDefault);
1973 }
1974
1975 void RegisterReadLoopHandlerset(
1976         int RoomType,
1977         GetParamsGetServerCall_func GetParamsGetServerCall,
1978         PrintViewHeader_func PrintPageHeader,
1979         PrintViewHeader_func PrintViewHeader,
1980         load_msg_ptrs_detailheaders LH,
1981         LoadMsgFromServer_func LoadMsgFromServer,
1982         RenderView_or_Tail_func RenderView_or_Tail,
1983         View_Cleanup_func ViewCleanup
1984         )
1985 {
1986         RoomRenderer *Handler;
1987
1988         Handler = (RoomRenderer*) malloc(sizeof(RoomRenderer));
1989
1990         Handler->RoomType = RoomType;
1991         Handler->GetParamsGetServerCall = GetParamsGetServerCall;
1992         Handler->PrintPageHeader = PrintPageHeader;
1993         Handler->PrintViewHeader = PrintViewHeader;
1994         Handler->LoadMsgFromServer = LoadMsgFromServer;
1995         Handler->RenderView_or_Tail = RenderView_or_Tail;
1996         Handler->ViewCleanup = ViewCleanup;
1997         Handler->LHParse = LH;
1998
1999         Put(ReadLoopHandler, IKEY(RoomType), Handler, NULL);
2000 }
2001
2002 void
2003 InitModule_MSG
2004 (void)
2005 {
2006         RegisterPreference("use_sig",
2007                            _("Attach signature to email messages?"),
2008                            PRF_YESNO,
2009                            NULL);
2010         RegisterPreference("signature", _("Use this signature:"), PRF_QP_STRING, NULL);
2011         RegisterPreference("default_header_charset",
2012                            _("Default character set for email headers:"),
2013                            PRF_STRING,
2014                            NULL);
2015         RegisterPreference("defaultfrom", _("Preferred email address"), PRF_STRING, NULL);
2016         RegisterPreference("defaultname",
2017                            _("Preferred display name for email messages"),
2018                            PRF_STRING,
2019                            NULL);
2020         RegisterPreference("defaulthandle",
2021                            _("Preferred display name for bulletin board posts"),
2022                            PRF_STRING,
2023                            NULL);
2024         RegisterPreference("mailbox",_("Mailbox view mode"), PRF_STRING, NULL);
2025
2026         WebcitAddUrlHandler(HKEY("readnew"), "", 0, h_readnew, ANONYMOUS|NEED_URL);
2027         WebcitAddUrlHandler(HKEY("readold"), "", 0, h_readold, ANONYMOUS|NEED_URL);
2028         WebcitAddUrlHandler(HKEY("readfwd"), "", 0, h_readfwd, ANONYMOUS|NEED_URL);
2029         WebcitAddUrlHandler(HKEY("headers"), "", 0, h_headers, NEED_URL);
2030         WebcitAddUrlHandler(HKEY("readgt"), "", 0, h_readgt, ANONYMOUS|NEED_URL);
2031         WebcitAddUrlHandler(HKEY("readlt"), "", 0, h_readlt, ANONYMOUS|NEED_URL);
2032         WebcitAddUrlHandler(HKEY("do_search"), "", 0, h_do_search, 0);
2033         WebcitAddUrlHandler(HKEY("display_enter"), "", 0, display_enter, 0);
2034         WebcitAddUrlHandler(HKEY("post"), "", 0, post_message, PROHIBIT_STARTPAGE);
2035         WebcitAddUrlHandler(HKEY("move_msg"), "", 0, move_msg, PROHIBIT_STARTPAGE);
2036         WebcitAddUrlHandler(HKEY("delete_msg"), "", 0, delete_msg, PROHIBIT_STARTPAGE);
2037         WebcitAddUrlHandler(HKEY("msg"), "", 0, embed_message, NEED_URL);
2038         WebcitAddUrlHandler(HKEY("message"), "", 0, handle_one_message, NEED_URL|XHTTP_COMMANDS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
2039         WebcitAddUrlHandler(HKEY("printmsg"), "", 0, print_message, NEED_URL);
2040         WebcitAddUrlHandler(HKEY("msgheaders"), "", 0, display_headers, NEED_URL);
2041
2042         WebcitAddUrlHandler(HKEY("mimepart"), "", 0, view_mimepart, NEED_URL);
2043         WebcitAddUrlHandler(HKEY("mimepart_download"), "", 0, download_mimepart, NEED_URL);
2044         WebcitAddUrlHandler(HKEY("postpart"), "", 0, view_postpart, NEED_URL|PROHIBIT_STARTPAGE);
2045         WebcitAddUrlHandler(HKEY("postpart_download"), "", 0, download_postpart, NEED_URL|PROHIBIT_STARTPAGE);
2046         WebcitAddUrlHandler(HKEY("upload_attachment"), "", 0, upload_attachment, AJAX);
2047         WebcitAddUrlHandler(HKEY("remove_attachment"), "", 0, remove_attachment, AJAX);
2048         WebcitAddUrlHandler(HKEY("show_num_attachments"), "", 0, show_num_attachments, AJAX);
2049
2050         /* json */
2051         WebcitAddUrlHandler(HKEY("roommsgs"), "", 0, jsonMessageList,0);
2052
2053         l_subj = FourHash("subj", 4);
2054         l_wefw = FourHash("wefw", 4);
2055         l_msgn = FourHash("msgn", 4);
2056         l_from = FourHash("from", 4);
2057         l_rcpt = FourHash("rcpt", 4);
2058         l_cccc = FourHash("cccc", 4);
2059         l_replyto = FourHash("rep2", 4);
2060         l_node = FourHash("node", 4);
2061         l_rfca = FourHash("rfca", 4);
2062
2063         return ;
2064 }
2065
2066 void
2067 SessionDetachModule_MSG
2068 (wcsession *sess)
2069 {
2070         DeleteHash(&sess->summ);
2071 }