webcit/messages.c

   1 /*
   2  * $Id$
   3  *
   4  * Functions which deal with the fetching and displaying of messages.
   5  *
   6  */
   7
   8 #include "webcit.h"
   9 #include "webserver.h"
  10 #include "groupdav.h"
  11
  12 HashList *MsgHeaderHandler = NULL;
  13 HashList *MsgEvaluators = NULL;
  14 HashList *MimeRenderHandler = NULL;
  15 HashList *ReadLoopHandler = NULL;
  16 int dbg_analyze_msg = 0;
  17
  18 #define SUBJ_COL_WIDTH_PCT              50      /* Mailbox view column width */
  19 #define SENDER_COL_WIDTH_PCT            30      /* Mailbox view column width */
  20 #define DATE_PLUS_BUTTONS_WIDTH_PCT     20      /* Mailbox view column width */
  21
  22 void jsonMessageListHdr(void);
  23
  24 void display_enter(void);
  25
  26 typedef void (*MsgPartEvaluatorFunc)(message_summary *Sum, StrBuf *Buf);
  27
  28 typedef struct _MsgPartEvaluatorStruct {
  29         MsgPartEvaluatorFunc f;
  30 } MsgPartEvaluatorStruct;
  31
  32 int load_message(message_summary *Msg,
  33                  StrBuf *FoundCharset,
  34                  StrBuf **Error)
  35 {
  36         wcsession *WCC = WC;
  37         StrBuf *Buf;
  38         StrBuf *HdrToken;
  39         headereval *Hdr;
  40         void *vHdr;
  41         char buf[SIZ];
  42         int Done = 0;
  43         int state=0;
  44
  45         Buf = NewStrBuf();
  46         lprintf(9, "MSG4 %ld|%s\n", Msg->msgnum, ChrPtr(Msg->PartNum));
  47         if (Msg->PartNum != NULL) {
  48                 serv_printf("MSG4 %ld|%s", Msg->msgnum, ChrPtr(Msg->PartNum));
  49         }
  50         else {
  51                 serv_printf("MSG4 %ld", Msg->msgnum);
  52         }
  53
  54         StrBuf_ServGetln(Buf);
  55         if (GetServerStatus(Buf, NULL) != 1) {
  56                 *Error = NewStrBuf();
  57                 StrBufAppendPrintf(*Error, "<strong>");
  58                 StrBufAppendPrintf(*Error, _("ERROR:"));
  59                 StrBufAppendPrintf(*Error, "</strong> %s<br />\n", &buf[4]);
  60                 FreeStrBuf(&Buf);
  61                 return 0;
  62         }
  63
  64         /* begin everythingamundo table */
  65         HdrToken = NewStrBuf();
  66         while (!Done && StrBuf_ServGetln(Buf)>=0) {
  67                 if ( (StrLength(Buf)==3) &&
  68                     !strcmp(ChrPtr(Buf), "000"))
  69                 {
  70                         Done = 1;
  71                         if (state < 2) {
  72                                 if (Msg->MsgBody->Data == NULL)
  73                                         Msg->MsgBody->Data = NewStrBuf();
  74                                 Msg->MsgBody->ContentType = NewStrBufPlain(HKEY("text/html"));
  75                                 StrBufAppendPrintf(Msg->MsgBody->Data, "<div><i>");
  76                                 StrBufAppendPrintf(Msg->MsgBody->Data, _("Empty message"));
  77                                 StrBufAppendPrintf(Msg->MsgBody->Data, "</i><br /><br />\n");
  78                                 StrBufAppendPrintf(Msg->MsgBody->Data, "</div>\n");
  79                         }
  80                         break;
  81                 }
  82                 switch (state) {
  83                 case 0:/* Citadel Message Headers */
  84                         if (StrLength(Buf) == 0) {
  85                                 state ++;
  86                                 break;
  87                         }
  88                         StrBufExtract_token(HdrToken, Buf, 0, '=');
  89                         StrBufCutLeft(Buf, StrLength(HdrToken) + 1);
  90
  91 #ifdef TECH_PREVIEW
  92                         if (dbg_analyze_msg) lprintf(1, ":: [%s] = [%s]\n", ChrPtr(HdrToken), ChrPtr(Buf));
  93 #endif
  94                         /* look up one of the examine_* functions to parse the content */
  95                         if (GetHash(MsgHeaderHandler, SKEY(HdrToken), &vHdr) &&
  96                             (vHdr != NULL)) {
  97                                 Hdr = (headereval*)vHdr;
  98                                 Hdr->evaluator(Msg, Buf, FoundCharset);
  99                                 if (Hdr->Type == 1) {
 100                                         state++;
 101                                 }
 102                         }/* TODO:
 103                         else LogError(Target,
 104                                       __FUNCTION__,
 105                                       "don't know how to handle message header[%s]\n",
 106                                       ChrPtr(HdrToken));
 107                          */
 108                         break;
 109                 case 1:/* Message Mime Header */
 110                         if (StrLength(Buf) == 0) {
 111                                 state++;
 112                                 if (Msg->MsgBody->ContentType == NULL)
 113                                         /* end of header or no header? */
 114                                         Msg->MsgBody->ContentType = NewStrBufPlain(HKEY("text/plain"));
 115                                  /* usual end of mime header */
 116                         }
 117                         else
 118                         {
 119                                 StrBufExtract_token(HdrToken, Buf, 0, ':');
 120                                 if (StrLength(HdrToken) > 0) {
 121                                         StrBufCutLeft(Buf, StrLength(HdrToken) + 1);
 122 #ifdef TECH_PREVIEW
 123                                         if (dbg_analyze_msg) lprintf(1, ":: [%s] = [%s]\n", ChrPtr(HdrToken), ChrPtr(Buf));
 124 #endif
 125                                         /* the examine*'s know how to do with mime headers too... */
 126                                         if (GetHash(MsgHeaderHandler, SKEY(HdrToken), &vHdr) &&
 127                                             (vHdr != NULL)) {
 128                                                 Hdr = (headereval*)vHdr;
 129                                                 Hdr->evaluator(Msg, Buf, FoundCharset);
 130                                         }
 131                                         break;
 132                                 }
 133                         }
 134                 case 2: /* Message Body */
 135
 136                         if (Msg->MsgBody->size_known > 0) {
 137                                 StrBuf_ServGetBLOBBuffered(Msg->MsgBody->Data, Msg->MsgBody->length);
 138                                 state ++;
 139                                 /*/ todo: check next line, if not 000, append following lines */
 140                         }
 141                         else if (1){
 142                                 if (StrLength(Msg->MsgBody->Data) > 0)
 143                                         StrBufAppendBufPlain(Msg->MsgBody->Data, "\n", 1, 0);
 144                                 StrBufAppendBuf(Msg->MsgBody->Data, Buf, 0);
 145                         }
 146                         break;
 147                 case 3:
 148                         StrBufAppendBuf(Msg->MsgBody->Data, Buf, 0);
 149                         break;
 150                 }
 151         }
 152
 153         if (Msg->AllAttach == NULL)
 154                 Msg->AllAttach = NewHash(1,NULL);
 155         /* now we put the body mimepart we read above into the mimelist */
 156         Put(Msg->AllAttach, SKEY(Msg->MsgBody->PartNum), Msg->MsgBody, DestroyMime);
 157
 158         /* Generate a reply-to address */
 159         if (StrLength(Msg->Rfca) > 0) {
 160                 if (Msg->reply_to == NULL)
 161                         Msg->reply_to = NewStrBuf();
 162                 if (StrLength(Msg->from) > 0) {
 163                         StrBufPrintf(Msg->reply_to, "%s <%s>", ChrPtr(Msg->from), ChrPtr(Msg->Rfca));
 164                 }
 165                 else {
 166                         FlushStrBuf(Msg->reply_to);
 167                         StrBufAppendBuf(Msg->reply_to, Msg->Rfca, 0);
 168                 }
 169         }
 170         else
 171         {
 172                 if ((StrLength(Msg->OtherNode)>0) &&
 173                     (strcasecmp(ChrPtr(Msg->OtherNode), ChrPtr(WCC->serv_info->serv_nodename))) &&
 174                     (strcasecmp(ChrPtr(Msg->OtherNode), ChrPtr(WCC->serv_info->serv_humannode)) ))
 175                 {
 176                         if (Msg->reply_to == NULL)
 177                                 Msg->reply_to = NewStrBuf();
 178                         StrBufPrintf(Msg->reply_to,
 179                                      "%s @ %s",
 180                                      ChrPtr(Msg->from),
 181                                      ChrPtr(Msg->OtherNode));
 182                 }
 183                 else {
 184                         if (Msg->reply_to == NULL)
 185                                 Msg->reply_to = NewStrBuf();
 186                         FlushStrBuf(Msg->reply_to);
 187                         StrBufAppendBuf(Msg->reply_to, Msg->from, 0);
 188                 }
 189         }
 190         FreeStrBuf(&Buf);
 191         FreeStrBuf(&HdrToken);
 192         return 1;
 193 }
 194
 195
 196
 197 /*
 198  * I wanna SEE that message!
 199  *
 200  * msgnum               Message number to display
 201  * printable_view       Nonzero to display a printable view
 202  * section              Optional for encapsulated message/rfc822 submessage
 203  */
 204 int read_message(StrBuf *Target, const char *tmpl, long tmpllen, long msgnum, const StrBuf *PartNum, const StrBuf **OutMime)
 205 {
 206         StrBuf *Buf;
 207         StrBuf *FoundCharset;
 208         HashPos  *it;
 209         void *vMime;
 210         message_summary *Msg = NULL;
 211         void *vHdr;
 212         long len;
 213         const char *Key;
 214         WCTemplputParams SubTP;
 215         StrBuf *Error = NULL;
 216
 217         Buf = NewStrBuf();
 218         FoundCharset = NewStrBuf();
 219         Msg = (message_summary *)malloc(sizeof(message_summary));
 220         memset(Msg, 0, sizeof(message_summary));
 221         Msg->msgnum = msgnum;
 222         Msg->PartNum = PartNum;
 223         Msg->MsgBody =  (wc_mime_attachment*) malloc(sizeof(wc_mime_attachment));
 224         memset(Msg->MsgBody, 0, sizeof(wc_mime_attachment));
 225         Msg->MsgBody->msgnum = msgnum;
 226
 227         if (!load_message(Msg, FoundCharset, &Error)) {
 228                 StrBufAppendBuf(Target, Error, 0);
 229                 FreeStrBuf(&Error);
 230         }
 231
 232         /* Extract just the content-type (omit attributes such as "charset") */
 233         StrBufExtract_token(Buf, Msg->MsgBody->ContentType, 0, ';');
 234         StrBufTrim(Buf);
 235         StrBufLowerCase(Buf);
 236
 237         /* Locate a renderer capable of converting this MIME part into HTML */
 238         if (GetHash(MimeRenderHandler, SKEY(Buf), &vHdr) &&
 239             (vHdr != NULL)) {
 240                 RenderMimeFuncStruct *Render;
 241                 Render = (RenderMimeFuncStruct*)vHdr;
 242                 Render->f(Msg->MsgBody, NULL, FoundCharset);
 243         }
 244
 245         if (StrLength(Msg->reply_references)> 0) {
 246                 /* Trim down excessively long lists of thread references.  We eliminate the
 247                  * second one in the list so that the thread root remains intact.
 248                  */
 249                 int rrtok = num_tokens(ChrPtr(Msg->reply_references), '|');
 250                 int rrlen = StrLength(Msg->reply_references);
 251                 if ( ((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10) ) {
 252                         StrBufRemove_token(Msg->reply_references, 1, '|');
 253                 }
 254         }
 255
 256         /* now check if we need to translate some mimeparts, and remove the duplicate */
 257         it = GetNewHashPos(Msg->AllAttach, 0);
 258         while (GetNextHashPos(Msg->AllAttach, it, &len, &Key, &vMime) &&
 259                (vMime != NULL)) {
 260                 wc_mime_attachment *Mime = (wc_mime_attachment*) vMime;
 261                 evaluate_mime_part(Msg, Mime);
 262         }
 263         DeleteHashPos(&it);
 264         memset(&SubTP, 0, sizeof(WCTemplputParams));
 265         SubTP.Filter.ContextType = CTX_MAILSUM;
 266         SubTP.Context = Msg;
 267         *OutMime = DoTemplate(tmpl, tmpllen, Target, &SubTP);
 268
 269         DestroyMessageSummary(Msg);
 270         FreeStrBuf(&FoundCharset);
 271         FreeStrBuf(&Buf);
 272         return 1;
 273 }
 274
 275
 276 void
 277 HttpStatus(long CitadelStatus)
 278 {
 279         long httpstatus = 502;
 280
 281         switch (MAJORCODE(CitadelStatus))
 282         {
 283         case LISTING_FOLLOWS:
 284         case CIT_OK:
 285                 httpstatus = 201;
 286                 break;
 287         case ERROR:
 288                 switch (MINORCODE(CitadelStatus))
 289                 {
 290                 case INTERNAL_ERROR:
 291                         httpstatus = 403;
 292                         break;
 293
 294                 case TOO_BIG:
 295                 case ILLEGAL_VALUE:
 296                 case HIGHER_ACCESS_REQUIRED:
 297                 case MAX_SESSIONS_EXCEEDED:
 298                 case RESOURCE_BUSY:
 299                 case RESOURCE_NOT_OPEN:
 300                 case NOT_HERE:
 301                 case INVALID_FLOOR_OPERATION:
 302                 case FILE_NOT_FOUND:
 303                 case ROOM_NOT_FOUND:
 304                         httpstatus = 409;
 305                         break;
 306
 307                 case MESSAGE_NOT_FOUND:
 308                 case ALREADY_EXISTS:
 309                         httpstatus = 403;
 310                         break;
 311
 312                 case NO_SUCH_SYSTEM:
 313                         httpstatus = 502;
 314                         break;
 315
 316                 default:
 317                 case CMD_NOT_SUPPORTED:
 318                 case PASSWORD_REQUIRED:
 319                 case ALREADY_LOGGED_IN:
 320                 case USERNAME_REQUIRED:
 321                 case NOT_LOGGED_IN:
 322                 case SERVER_SHUTTING_DOWN:
 323                 case NO_SUCH_USER:
 324                 case ASYNC_GEXP:
 325                         httpstatus = 502;
 326                         break;
 327                 }
 328                 break;
 329
 330         default:
 331         case BINARY_FOLLOWS:
 332         case SEND_BINARY:
 333         case START_CHAT_MODE:
 334         case ASYNC_MSG:
 335         case MORE_DATA:
 336         case SEND_LISTING:
 337                 httpstatus = 502; /* aeh... whut? */
 338                 break;
 339         }
 340
 341
 342 }
 343
 344 /*
 345  * Unadorned HTML output of an individual message, suitable
 346  * for placing in a hidden iframe, for printing, or whatever
 347  */
 348 void handle_one_message(void)
 349 {
 350         long CitStatus;
 351         int CopyMessage = 0;
 352         const StrBuf *Destination;
 353         void *vLine;
 354         const StrBuf *Mime;
 355         long msgnum = 0L;
 356         wcsession *WCC = WC;
 357         const StrBuf *Tmpl;
 358         StrBuf *CmdBuf = NULL;
 359         const char *pMsg;
 360
 361
 362         pMsg = strchr(ChrPtr(WCC->Hdr->HR.ReqLine), '/');
 363         if (pMsg == NULL) {
 364                 HttpStatus(CitStatus);
 365                 return;
 366         }
 367
 368         msgnum = atol(pMsg + 1);
 369         StrBufCutAt(WCC->Hdr->HR.ReqLine, 0, pMsg);
 370         gotoroom(WCC->Hdr->HR.ReqLine);
 371         switch (WCC->Hdr->HR.eReqType)
 372         {
 373         case eGET:
 374         case ePOST:
 375                 Tmpl = sbstr("template");
 376                 if (StrLength(Tmpl) > 0)
 377                         read_message(WCC->WBuf, SKEY(Tmpl), msgnum, NULL, &Mime);
 378                 else
 379                         read_message(WCC->WBuf, HKEY("view_message"), msgnum, NULL, &Mime);
 380                 http_transmit_thing(ChrPtr(Mime), 0);
 381                 break;
 382         case eDELETE:
 383                 CmdBuf = NewStrBuf ();
 384                 if ((WCC->CurRoom.RAFlags & UA_ISTRASH) != 0) { /* Delete from Trash is a real delete */
 385                         serv_printf("DELE %ld", msgnum);
 386                 }
 387                 else {                  /* Otherwise move it to Trash */
 388                         serv_printf("MOVE %ld|_TRASH_|0", msgnum);
 389                 }
 390                 StrBuf_ServGetln(CmdBuf);
 391                 FlushStrBuf(WCC->ImportantMsg);
 392                 StrBufAppendBuf(WCC->ImportantMsg, CmdBuf, 4);
 393                 GetServerStatus(CmdBuf, &CitStatus);
 394                 HttpStatus(CitStatus);
 395                 break;
 396         case eCOPY:
 397                 CopyMessage = 1;
 398         case eMOVE:
 399                 if (GetHash(WCC->Hdr->HTTPHeaders, HKEY("DESTINATION"), &vLine) &&
 400                     (vLine!=NULL)) {
 401                         Destination = (StrBuf*) vLine;
 402                         serv_printf("MOVE %ld|%s|%d", msgnum, ChrPtr(Destination), CopyMessage);
 403                         StrBuf_ServGetln(CmdBuf);
 404                         FlushStrBuf(WCC->ImportantMsg);
 405                         StrBufAppendBuf(WCC->ImportantMsg, CmdBuf, 4);
 406                         GetServerStatus(CmdBuf, &CitStatus);
 407                         HttpStatus(CitStatus);
 408                 }
 409                 else
 410                         HttpStatus(500);
 411                 break;
 412         default:
 413                 break;
 414
 415         }
 416 }
 417
 418
 419 /*
 420  * Unadorned HTML output of an individual message, suitable
 421  * for placing in a hidden iframe, for printing, or whatever
 422  */
 423 void embed_message(void) {
 424         const StrBuf *Mime;
 425         long msgnum = 0L;
 426         wcsession *WCC = WC;
 427         const StrBuf *Tmpl;
 428         StrBuf *CmdBuf = NULL;
 429
 430         msgnum = StrBufExtract_long(WCC->Hdr->HR.ReqLine, 0, '/');
 431         switch (WCC->Hdr->HR.eReqType)
 432         {
 433         case eGET:
 434         case ePOST:
 435                 Tmpl = sbstr("template");
 436                 if (StrLength(Tmpl) > 0)
 437                         read_message(WCC->WBuf, SKEY(Tmpl), msgnum, NULL, &Mime);
 438                 else
 439                         read_message(WCC->WBuf, HKEY("view_message"), msgnum, NULL, &Mime);
 440                 http_transmit_thing(ChrPtr(Mime), 0);
 441                 break;
 442         case eDELETE:
 443                 CmdBuf = NewStrBuf ();
 444                 if ((WCC->CurRoom.RAFlags & UA_ISTRASH) != 0) { /* Delete from Trash is a real delete */
 445                         serv_printf("DELE %ld", msgnum);
 446                 }
 447                 else {                  /* Otherwise move it to Trash */
 448                         serv_printf("MOVE %ld|_TRASH_|0", msgnum);
 449                 }
 450                 StrBuf_ServGetln(CmdBuf);
 451                 FlushStrBuf(WCC->ImportantMsg);
 452                 StrBufAppendBuf(WCC->ImportantMsg, CmdBuf, 4);
 453                 break;
 454         default:
 455                 break;
 456
 457         }
 458 }
 459
 460
 461 /*
 462  * Printable view of a message
 463  */
 464 void print_message(void) {
 465         long msgnum = 0L;
 466         const StrBuf *Mime;
 467
 468         msgnum = StrBufExtract_long(WC->Hdr->HR.ReqLine, 0, '/');
 469         output_headers(0, 0, 0, 0, 0, 0);
 470
 471         hprintf("Content-type: text/html\r\n"
 472                 "Server: " PACKAGE_STRING "\r\n"
 473                 "Connection: close\r\n");
 474
 475         begin_burst();
 476
 477         read_message(WC->WBuf, HKEY("view_message_print"), msgnum, NULL, &Mime);
 478
 479         wDumpContent(0);
 480 }
 481
 482 /*
 483  * Mobile browser view of message
 484  */
 485 void mobile_message_view(void)
 486 {
 487         long msgnum = 0L;
 488         const StrBuf *Mime;
 489
 490         msgnum = StrBufExtract_long(WC->Hdr->HR.ReqLine, 0, '/');
 491         output_headers(1, 0, 0, 0, 0, 1);
 492         begin_burst();
 493         do_template("msgcontrols", NULL);
 494         read_message(WC->WBuf, HKEY("view_message"), msgnum, NULL, &Mime);
 495         wDumpContent(0);
 496 }
 497
 498 /*
 499  * Display a message's headers
 500  */
 501 void display_headers(void) {
 502         long msgnum = 0L;
 503         char buf[1024];
 504
 505         msgnum = StrBufExtract_long(WC->Hdr->HR.ReqLine, 0, '/');
 506         output_headers(0, 0, 0, 0, 0, 0);
 507
 508         hprintf("Content-type: text/plain\r\n"
 509                 "Server: %s\r\n"
 510                 "Connection: close\r\n",
 511                 PACKAGE_STRING);
 512         begin_burst();
 513
 514         serv_printf("MSG2 %ld|3", msgnum);
 515         serv_getln(buf, sizeof buf);
 516         if (buf[0] == '1') {
 517                 while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 518                         wc_printf("%s\n", buf);
 519                 }
 520         }
 521
 522         wDumpContent(0);
 523 }
 524
 525
 526 message_summary *ReadOneMessageSummary(StrBuf *RawMessage, const char *DefaultSubject, long MsgNum)
 527 {
 528         void                 *vEval;
 529         MsgPartEvaluatorStruct  *Eval;
 530         message_summary      *Msg;
 531         StrBuf *Buf;
 532         const char *buf;
 533         const char *ebuf;
 534         int nBuf;
 535         long len;
 536
 537         Buf = NewStrBuf();
 538
 539         serv_printf("MSG0 %ld|1", MsgNum);      /* ask for headers only */
 540
 541         StrBuf_ServGetln(Buf);
 542         if (GetServerStatus(Buf, NULL) == 1) {
 543                 FreeStrBuf(&Buf);
 544                 return NULL;
 545         }
 546
 547         Msg = (message_summary*)malloc(sizeof(message_summary));
 548         memset(Msg, 0, sizeof(message_summary));
 549         while (len = StrBuf_ServGetln(Buf),
 550                ((len != 3)  ||
 551                 strcmp(ChrPtr(Buf), "000")== 0)){
 552                 buf = ChrPtr(Buf);
 553                 ebuf = strchr(ChrPtr(Buf), '=');
 554                 nBuf = ebuf - buf;
 555                 if (GetHash(MsgEvaluators, buf, nBuf, &vEval) && vEval != NULL) {
 556                         Eval = (MsgPartEvaluatorStruct*) vEval;
 557                         StrBufCutLeft(Buf, nBuf + 1);
 558                         Eval->f(Msg, Buf);
 559                 }
 560                 else lprintf(1, "Don't know how to handle Message Headerline [%s]", ChrPtr(Buf));
 561         }
 562         return Msg;
 563 }
 564
 565
 566
 567
 568
 569 /*
 570  * load message pointers from the server for a "read messages" operation
 571  *
 572  * servcmd:             the citadel command to send to the citserver
 573  */
 574 int load_msg_ptrs(const char *servcmd,
 575                   SharedMessageStatus *Stat,
 576                   load_msg_ptrs_detailheaders LH)
 577 {
 578         wcsession *WCC = WC;
 579         message_summary *Msg;
 580         StrBuf *Buf, *Buf2;
 581         long len;
 582         int n;
 583         int skipit;
 584         const char *Ptr = NULL;
 585
 586         Stat->lowest_found = LONG_MAX;
 587         Stat->highest_found = LONG_MIN;
 588
 589         if (WCC->summ != NULL) {
 590                 DeleteHash(&WCC->summ);
 591         }
 592         WCC->summ = NewHash(1, Flathash);
 593
 594         Buf = NewStrBuf();
 595         serv_puts(servcmd);
 596         StrBuf_ServGetln(Buf);
 597         if (GetServerStatus(Buf, NULL) != 1) {
 598                 FreeStrBuf(&Buf);
 599                 return (Stat->nummsgs);
 600         }
 601         Buf2 = NewStrBuf();
 602         while (len = StrBuf_ServGetln(Buf), ((len != 3) || strcmp(ChrPtr(Buf), "000")!= 0))
 603         {
 604                 if (Stat->nummsgs < Stat->maxload) {
 605                         skipit = 0;
 606                         Ptr = NULL;
 607                         Msg = (message_summary*)malloc(sizeof(message_summary));
 608                         memset(Msg, 0, sizeof(message_summary));
 609
 610                         Msg->msgnum = StrBufExtractNext_long(Buf, &Ptr, '|');
 611                         Msg->date = StrBufExtractNext_long(Buf, &Ptr, '|');
 612
 613                         if (Stat->nummsgs == 0) {
 614                                 if (Msg->msgnum < Stat->lowest_found) {
 615                                         Stat->lowest_found = Msg->msgnum;
 616                                 }
 617                                 if (Msg->msgnum > Stat->highest_found) {
 618                                         Stat->highest_found = Msg->msgnum;
 619                                 }
 620                         }
 621
 622                         if ((Msg->msgnum == 0) && (StrLength(Buf) < 32)) {
 623                                 free(Msg);
 624                                 continue;
 625                         }
 626
 627                         /*
 628                          * as citserver probably gives us messages in forward date sorting
 629                          * nummsgs should be the same order as the message date.
 630                          */
 631                         if (Msg->date == 0) {
 632                                 Msg->date = Stat->nummsgs;
 633                                 if (StrLength(Buf) < 32)
 634                                         skipit = 1;
 635                         }
 636                         if ((!skipit) && (LH != NULL)) {
 637                                 if (!LH(Buf, &Ptr, Msg, Buf2)){
 638                                         free(Msg);
 639                                         continue;
 640                                 }
 641                         }
 642                         n = Msg->msgnum;
 643                         Put(WCC->summ, (const char *)&n, sizeof(n), Msg, DestroyMessageSummary);
 644                 }
 645                 Stat->nummsgs++;
 646         }
 647         FreeStrBuf(&Buf2);
 648         FreeStrBuf(&Buf);
 649         return (Stat->nummsgs);
 650 }
 651
 652
 653 inline message_summary* GetMessagePtrAt(int n, HashList *Summ)
 654 {
 655         const char *Key;
 656         long HKLen;
 657         void *vMsg;
 658
 659         if (Summ == NULL)
 660                 return NULL;
 661         GetHashAt(Summ, n, &HKLen, &Key, &vMsg);
 662         return (message_summary*) vMsg;
 663 }
 664
 665
 666
 667 void load_seen_flags(void)
 668 {
 669         message_summary *Msg;
 670         const char *HashKey;
 671         long HKLen;
 672         HashPos *at;
 673         void *vMsg;
 674         StrBuf *OldMsg;
 675         wcsession *WCC = WC;
 676
 677         OldMsg = NewStrBuf();
 678         serv_puts("GTSN");
 679         StrBuf_ServGetln(OldMsg);
 680         if (GetServerStatus(OldMsg, NULL) == 2) {
 681                 StrBufCutLeft(OldMsg, 4);
 682         }
 683         else {
 684                 FreeStrBuf(&OldMsg);
 685                 return;
 686         }
 687         at = GetNewHashPos(WCC->summ, 0);
 688         while (GetNextHashPos(WCC->summ, at, &HKLen, &HashKey, &vMsg)) {
 689                 /* Are you a new message, or an old message? */
 690                 Msg = (message_summary*) vMsg;
 691                 if (is_msg_in_mset(ChrPtr(OldMsg), Msg->msgnum)) {
 692                         Msg->is_new = 0;
 693                 }
 694                 else {
 695                         Msg->is_new = 1;
 696                 }
 697         }
 698         FreeStrBuf(&OldMsg);
 699         DeleteHashPos(&at);
 700 }
 701
 702 extern readloop_struct rlid[];
 703
 704 typedef struct _RoomRenderer{
 705         int RoomType;
 706
 707         GetParamsGetServerCall_func GetParamsGetServerCall;
 708         PrintViewHeader_func PrintViewHeader;
 709         LoadMsgFromServer_func LoadMsgFromServer;
 710         RenderView_or_Tail_func RenderView_or_Tail;
 711         View_Cleanup_func ViewCleanup;
 712         load_msg_ptrs_detailheaders LHParse;
 713 } RoomRenderer;
 714
 715
 716 /*
 717  * command loop for reading messages
 718  *
 719  * Set oper to "readnew" or "readold" or "readfwd" or "headers" or "readgt" or "readlt" or "do_search"
 720  */
 721 void readloop(long oper, eCustomRoomRenderer ForceRenderer)
 722 {
 723         RoomRenderer *ViewMsg;
 724         void *vViewMsg;
 725         void *vMsg;
 726         message_summary *Msg;
 727         char cmd[256] = "";
 728         int i, r;
 729         wcsession *WCC = WC;
 730         HashPos *at;
 731         const char *HashKey;
 732         long HKLen;
 733         WCTemplputParams SubTP;
 734         SharedMessageStatus Stat;
 735         void *ViewSpecific;
 736
 737         if (havebstr("is_summary") && (1 == (ibstr("is_summary")))) {
 738                 WCC->CurRoom.view = VIEW_MAILBOX;
 739         }
 740
 741         if (havebstr("is_ajax") && (1 == (ibstr("is_ajax")))) {
 742                 WCC->is_ajax = 1;
 743         }
 744
 745         if ((oper == do_search) && (WCC->CurRoom.view == VIEW_WIKI)) {
 746                 display_wiki_pagelist();
 747                 return;
 748         }
 749
 750         memset(&Stat, 0, sizeof(SharedMessageStatus));
 751         Stat.maxload = 10000;
 752         Stat.lowest_found = (-1);
 753         Stat.highest_found = (-1);
 754         if (ForceRenderer == eUseDefault)
 755                 GetHash(ReadLoopHandler, IKEY(WCC->CurRoom.view), &vViewMsg);
 756         else
 757                 GetHash(ReadLoopHandler, IKEY(ForceRenderer), &vViewMsg);
 758         if (vViewMsg == NULL) {
 759                 WCC->CurRoom.view = VIEW_BBS;
 760                 GetHash(ReadLoopHandler, IKEY(WCC->CurRoom.view), &vViewMsg);
 761         }
 762         if (vViewMsg == NULL) {
 763                 return;                 // TODO: print message
 764         }
 765
 766         ViewMsg = (RoomRenderer*) vViewMsg;
 767         if (!WCC->is_ajax) {
 768                 output_headers(1, 1, 1, 0, 0, 0);
 769         } else if (WCC->CurRoom.view == VIEW_MAILBOX) {
 770                 jsonMessageListHdr();
 771         }
 772
 773         if (ViewMsg->GetParamsGetServerCall != NULL) {
 774                 r = ViewMsg->GetParamsGetServerCall(
 775                        &Stat,
 776                        &ViewSpecific,
 777                        oper,
 778                        cmd, sizeof(cmd)
 779                 );
 780         } else {
 781                 r = 0;
 782         }
 783         switch(r)
 784         {
 785         case 400:
 786         case 404:
 787
 788                 return;
 789         case 300: /* the callback hook should do the work for us here, since he knows what to do. */
 790                 return;
 791         case 200:
 792         default:
 793                 break;
 794         }
 795         if (!IsEmptyStr(cmd))
 796                 Stat.nummsgs = load_msg_ptrs(cmd, &Stat, ViewMsg->LHParse);
 797
 798         if (Stat.sortit) {
 799                 CompareFunc SortIt;
 800                 memset(&SubTP, 0, sizeof(WCTemplputParams));
 801                 SubTP.Filter.ContextType = CTX_MAILSUM;
 802                 SubTP.Context = NULL;
 803                 SortIt =  RetrieveSort(&SubTP, NULL, 0,
 804                                        HKEY("date"), Stat.defaultsortorder);
 805                 if (SortIt != NULL)
 806                         SortByPayload(WCC->summ, SortIt);
 807         }
 808         if (Stat.startmsg < 0) {
 809                 Stat.startmsg =  0;
 810         }
 811
 812         if (Stat.load_seen) load_seen_flags();
 813
 814         /*
 815          * Print any inforation above the message list...
 816          */
 817         if (ViewMsg->PrintViewHeader != NULL)
 818                 ViewMsg->PrintViewHeader(&Stat, &ViewSpecific);
 819
 820         WCC->startmsg =  Stat.startmsg;
 821         WCC->maxmsgs = Stat.maxmsgs;
 822         WCC->num_displayed = 0;
 823
 824         /* Put some helpful data in vars for mailsummary_json */
 825         svputlong("READLOOP:TOTALMSGS", Stat.nummsgs);
 826         svputlong("READLOOP:STARTMSG", Stat.startmsg);
 827         svputlong("WCVIEW", WCC->CurRoom.view);
 828
 829         /*
 830          * iterate over each message. if we need to load an attachment, do it here.
 831          */
 832
 833         if ((ViewMsg->LoadMsgFromServer != NULL) &&
 834             (!IsEmptyStr(cmd)))
 835         {
 836                 at = GetNewHashPos(WCC->summ, 0);
 837                 Stat.num_displayed = i = 0;
 838                 while ( GetNextHashPos(WCC->summ, at, &HKLen, &HashKey, &vMsg)) {
 839                         Msg = (message_summary*) vMsg;
 840                         if ((Msg->msgnum >= Stat.startmsg) && (Stat.num_displayed <= Stat.maxmsgs)) {
 841                                 ViewMsg->LoadMsgFromServer(&Stat, &ViewSpecific, Msg, Msg->is_new, i);
 842                         }
 843                         i++;
 844                 }
 845                 DeleteHashPos(&at);
 846         }
 847
 848         /*
 849          * Done iterating the message list. now tasks we want to do after.
 850          */
 851         if (ViewMsg->RenderView_or_Tail != NULL)
 852                 ViewMsg->RenderView_or_Tail(&Stat, &ViewSpecific, oper);
 853
 854         if (ViewMsg->ViewCleanup != NULL)
 855                 ViewMsg->ViewCleanup(&ViewSpecific);
 856
 857         WCC->startmsg = 0;
 858         WCC->maxmsgs = 0;
 859         if (WCC->summ != NULL) {
 860                 DeleteHash(&WCC->summ);
 861         }
 862 }
 863
 864
 865 /*
 866  * Back end for post_message()
 867  * ... this is where the actual message gets transmitted to the server.
 868  */
 869 void post_mime_to_server(void) {
 870         wcsession *WCC = WC;
 871         char top_boundary[SIZ];
 872         char alt_boundary[SIZ];
 873         int is_multipart = 0;
 874         static int seq = 0;
 875         wc_mime_attachment *att;
 876         char *encoded;
 877         size_t encoded_length;
 878         size_t encoded_strlen;
 879         char *txtmail = NULL;
 880         int include_text_alt = 0;       /* Set to nonzero to include multipart/alternative text/plain */
 881
 882         sprintf(top_boundary, "Citadel--Multipart--%s--%04x--%04x",
 883                 ChrPtr(WCC->serv_info->serv_fqdn),
 884                 getpid(),
 885                 ++seq
 886         );
 887         sprintf(alt_boundary, "Citadel--Multipart--%s--%04x--%04x",
 888                 ChrPtr(WCC->serv_info->serv_fqdn),
 889                 getpid(),
 890                 ++seq
 891         );
 892
 893         /* RFC2045 requires this, and some clients look for it... */
 894         serv_puts("MIME-Version: 1.0");
 895         serv_puts("X-Mailer: " PACKAGE_STRING);
 896
 897         /* If there are attachments, we have to do multipart/mixed */
 898         if (GetCount(WCC->attachments) > 0) {
 899                 is_multipart = 1;
 900         }
 901
 902         /* Only do multipart/alternative for mailboxes.  BBS and Wiki rooms don't need it. */
 903         if (WC->CurRoom.view == VIEW_MAILBOX) {
 904                 include_text_alt = 1;
 905         }
 906
 907         if (is_multipart) {
 908                 /* Remember, serv_printf() appends an extra newline */
 909                 serv_printf("Content-type: multipart/mixed; boundary=\"%s\"\n", top_boundary);
 910                 serv_printf("This is a multipart message in MIME format.\n");
 911                 serv_printf("--%s", top_boundary);
 912         }
 913
 914         /* Remember, serv_printf() appends an extra newline */
 915         if (include_text_alt) {
 916                 serv_printf("Content-type: multipart/alternative; "
 917                         "boundary=\"%s\"\n", alt_boundary);
 918                 serv_printf("This is a multipart message in MIME format.\n");
 919                 serv_printf("--%s", alt_boundary);
 920
 921                 serv_puts("Content-type: text/plain; charset=utf-8");
 922                 serv_puts("Content-Transfer-Encoding: quoted-printable");
 923                 serv_puts("");
 924                 txtmail = html_to_ascii(bstr("msgtext"), 0, 80, 0);
 925                 text_to_server_qp(txtmail);     /* Transmit message in quoted-printable encoding */
 926                 free(txtmail);
 927
 928                 serv_printf("--%s", alt_boundary);
 929         }
 930
 931         serv_puts("Content-type: text/html; charset=utf-8");
 932         serv_puts("Content-Transfer-Encoding: quoted-printable");
 933         serv_puts("");
 934         serv_puts("<html><body>\r\n");
 935         text_to_server_qp(bstr("msgtext"));     /* Transmit message in quoted-printable encoding */
 936         serv_puts("</body></html>\r\n");
 937
 938         if (include_text_alt) {
 939                 serv_printf("--%s--", alt_boundary);
 940         }
 941
 942         if (is_multipart) {
 943                 long len;
 944                 const char *Key;
 945                 void *vAtt;
 946                 HashPos  *it;
 947
 948                 /* Add in the attachments */
 949                 it = GetNewHashPos(WCC->attachments, 0);
 950                 while (GetNextHashPos(WCC->attachments, it, &len, &Key, &vAtt)) {
 951                         att = (wc_mime_attachment *)vAtt;
 952                         if (att->length == 0)
 953                                 continue;
 954                         encoded_length = ((att->length * 150) / 100);
 955                         encoded = malloc(encoded_length);
 956                         if (encoded == NULL) break;
 957                         encoded_strlen = CtdlEncodeBase64(encoded, ChrPtr(att->Data), StrLength(att->Data), 1);
 958
 959                         serv_printf("--%s", top_boundary);
 960                         serv_printf("Content-type: %s", ChrPtr(att->ContentType));
 961                         serv_printf("Content-disposition: attachment; filename=\"%s\"", ChrPtr(att->FileName));
 962                         serv_puts("Content-transfer-encoding: base64");
 963                         serv_puts("");
 964                         serv_write(encoded, encoded_strlen);
 965                         serv_puts("");
 966                         serv_puts("");
 967                         free(encoded);
 968                 }
 969                 serv_printf("--%s--", top_boundary);
 970                 DeleteHashPos(&it);
 971         }
 972
 973         serv_puts("000");
 974 }
 975
 976
 977 /*
 978  * Post message (or don't post message)
 979  *
 980  * Note regarding the "dont_post" variable:
 981  * A random value (actually, it's just a timestamp) is inserted as a hidden
 982  * field called "postseq" when the display_enter page is generated.  This
 983  * value is checked when posting, using the static variable dont_post.  If a
 984  * user attempts to post twice using the same dont_post value, the message is
 985  * discarded.  This prevents the accidental double-saving of the same message
 986  * if the user happens to click the browser "back" button.
 987  */
 988 void post_message(void)
 989 {
 990         char buf[1024];
 991         StrBuf *encoded_subject = NULL;
 992         static long dont_post = (-1L);
 993         wc_mime_attachment  *att;
 994         int is_anonymous = 0;
 995         const StrBuf *display_name = NULL;
 996         wcsession *WCC = WC;
 997         StrBuf *Buf;
 998
 999         if (havebstr("force_room")) {
1000                 gotoroom(sbstr("force_room"));
1001         }
1002
1003         if (havebstr("display_name")) {
1004                 display_name = sbstr("display_name");
1005                 if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1006                         display_name = NULL;
1007                         is_anonymous = 1;
1008                 }
1009         }
1010
1011         if (WCC->upload_length > 0) {
1012                 const char *pch;
1013                 int n;
1014                 char N[64];
1015
1016                 /* There's an attachment.  Save it to this struct... */
1017                 lprintf(9, "Client is uploading %d bytes\n", WCC->upload_length);
1018                 att = malloc(sizeof(wc_mime_attachment));
1019                 memset(att, 0, sizeof(wc_mime_attachment ));
1020                 att->length = WCC->upload_length;
1021                 att->ContentType = NewStrBufPlain(WCC->upload_content_type, -1);
1022                 att->FileName = NewStrBufPlain(WCC->upload_filename, -1);
1023
1024                 if (WCC->attachments == NULL) {
1025                         WCC->attachments = NewHash(1, NULL);
1026                 }
1027
1028                 /* And add it to the list. */
1029                 n = snprintf(N, sizeof N, "%d", GetCount(WCC->attachments) + 1);
1030                 Put(WCC->attachments, N, n, att, DestroyMime);
1031
1032                 /*
1033                  * Mozilla sends a simple filename, which is what we want,
1034                  * but Satan's Browser sends an entire pathname.  Reduce
1035                  * the path to just a filename if we need to.
1036                  */
1037                 pch = strrchr(ChrPtr(att->FileName), '/');
1038                 if (pch != NULL) {
1039                         StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1040                 }
1041                 pch = strrchr(ChrPtr(att->FileName), '\\');
1042                 if (pch != NULL) {
1043                         StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1044                 }
1045
1046                 /*
1047                  * Transfer control of this memory from the upload struct
1048                  * to the attachment struct.
1049                  */
1050                 att->Data = WCC->upload;
1051                 WCC->upload = NULL;
1052                 WCC->upload_length = 0;
1053                 display_enter();
1054                 return;
1055         }
1056
1057         if (havebstr("cancel_button")) {
1058                 sprintf(WCC->ImportantMessage,
1059                         _("Cancelled.  Message was not posted."));
1060         } else if (havebstr("attach_button")) {
1061                 display_enter();
1062                 return;
1063         } else if (lbstr("postseq") == dont_post) {
1064                 sprintf(WCC->ImportantMessage,
1065                         _("Automatically cancelled because you have already "
1066                         "saved this message."));
1067         } else {
1068                 const char CMD[] = "ENT0 1|%s|%d|4|%s|%s||%s|%s|%s|%s|%s";
1069                 const StrBuf *Recp = NULL;
1070                 const StrBuf *Cc = NULL;
1071                 const StrBuf *Bcc = NULL;
1072                 const StrBuf *Wikipage = NULL;
1073                 const StrBuf *my_email_addr = NULL;
1074                 StrBuf *CmdBuf = NULL;
1075                 StrBuf *references = NULL;
1076                 int save_to_drafts;
1077                 long HeaderLen;
1078
1079                 save_to_drafts = havebstr("save_button");
1080                 Buf = NewStrBuf();
1081
1082                 if (save_to_drafts) {
1083                         /* temporarily change to the drafts room */
1084                         serv_puts("GOTO _DRAFTS_");
1085                         StrBuf_ServGetln(Buf);
1086                         if (GetServerStatus(Buf, NULL) != 2) {
1087                                 /* You probably don't even have a dumb Drafts folder */
1088                                 StrBufCutLeft(Buf, 4);
1089                                 lprintf(9, "%s:%d: server save to drafts error: %s\n", __FILE__, __LINE__, ChrPtr(Buf));
1090                                 StrBufAppendBufPlain(WCC->ImportantMsg, _("Saved to Drafts failed: "), -1, 0);
1091                                 StrBufAppendBuf(WCC->ImportantMsg, Buf, 0);
1092                                 display_enter();
1093                                 FreeStrBuf(&Buf);
1094                                 return;
1095                         }
1096                 }
1097
1098                 if (havebstr("references"))
1099                 {
1100                         const StrBuf *ref = sbstr("references");
1101                         references = NewStrBufDup(ref);
1102                         if (*ChrPtr(references) == '|') {       /* remove leading '|' if present */
1103                                 StrBufCutLeft(references, 1);
1104                         }
1105                         StrBufReplaceChars(references, '|', '!');
1106                 }
1107                 if (havebstr("subject")) {
1108                         const StrBuf *Subj;
1109                         /*
1110                          * make enough room for the encoded string;
1111                          * plus the QP header
1112                          */
1113                         Subj = sbstr("subject");
1114
1115                         StrBufRFC2047encode(&encoded_subject, Subj);
1116                 }
1117                 Recp = sbstr("recp");
1118                 Cc = sbstr("cc");
1119                 Bcc = sbstr("bcc");
1120                 Wikipage = sbstr("page");
1121                 my_email_addr = sbstr("my_email_addr");
1122
1123                 HeaderLen = StrLength(Recp) +
1124                         StrLength(encoded_subject) +
1125                         StrLength(Cc) +
1126                         StrLength(Bcc) +
1127                         StrLength(Wikipage) +
1128                         StrLength(my_email_addr) +
1129                         StrLength(references);
1130                 CmdBuf = NewStrBufPlain(NULL, sizeof (CMD) + HeaderLen);
1131                 StrBufPrintf(CmdBuf,
1132                              CMD,
1133                              save_to_drafts?"":ChrPtr(Recp),
1134                              is_anonymous,
1135                              ChrPtr(encoded_subject),
1136                              ChrPtr(display_name),
1137                              save_to_drafts?"":ChrPtr(Cc),
1138                              save_to_drafts?"":ChrPtr(Bcc),
1139                              ChrPtr(Wikipage),
1140                              ChrPtr(my_email_addr),
1141                              ChrPtr(references));
1142                 FreeStrBuf(&references);
1143                 FreeStrBuf(&encoded_subject);
1144
1145                 if ((HeaderLen + StrLength(sbstr("msgtext")) < 10) &&
1146                     (GetCount(WCC->attachments) == 0)){
1147                         StrBufAppendBufPlain(WCC->ImportantMsg, _("Refusing to post empty message.\n"), -1, 0);
1148                         FreeStrBuf(&CmdBuf);
1149
1150                 }
1151                 else
1152                 {
1153                         lprintf(9, "%s\n", ChrPtr(CmdBuf));
1154                         serv_puts(ChrPtr(CmdBuf));
1155                         FreeStrBuf(&CmdBuf);
1156
1157                         StrBuf_ServGetln(Buf);
1158                         if (GetServerStatus(Buf, NULL) == 4) {
1159                                 if (save_to_drafts) {
1160                                         if (  (havebstr("recp"))
1161                                               || (havebstr("cc"  ))
1162                                               || (havebstr("bcc" )) ) {
1163                                                 /* save recipient headers or room to post to */
1164                                                 serv_printf("To: %s", ChrPtr(Recp));
1165                                                 serv_printf("Cc: %s", ChrPtr(Cc));
1166                                                 serv_printf("Bcc: %s", ChrPtr(Bcc));
1167                                         } else {
1168                                                 serv_printf("X-Citadel-Room: %s", ChrPtr(WC->CurRoom.name));
1169                                         }
1170                                 }
1171                                 post_mime_to_server();
1172                                 if (save_to_drafts) {
1173                                         StrBufAppendBufPlain(WCC->ImportantMsg, _("Message has been saved to Drafts.\n"), -1, 0);
1174                                         gotoroom(WCC->CurRoom.name);
1175                                         display_enter();
1176                                         FreeStrBuf(&Buf);
1177                                         return;
1178                                 } else if (  (havebstr("recp"))
1179                                              || (havebstr("cc"  ))
1180                                              || (havebstr("bcc" ))
1181                                         ) {
1182                                         StrBufAppendBufPlain(WCC->ImportantMsg, _("Message has been sent.\n"), -1, 0);
1183                                 }
1184                                 else {
1185                                         StrBufAppendBufPlain(WCC->ImportantMsg, _("Message has been posted.\n"), -1, 0);
1186                                 }
1187                                 dont_post = lbstr("postseq");
1188                         } else {
1189                                 StrBufCutLeft(Buf, 4);
1190
1191                                 lprintf(9, "%s:%d: server post error: %s\n", __FILE__, __LINE__, ChrPtr(Buf));
1192                                 StrBufAppendBuf(WCC->ImportantMsg, Buf, 0);
1193                                 if (save_to_drafts) gotoroom(WCC->CurRoom.name);
1194                                 display_enter();
1195                                 FreeStrBuf(&Buf);
1196                                 return;
1197                         }
1198                 }
1199                 FreeStrBuf(&Buf);
1200         }
1201
1202         DeleteHash(&WCC->attachments);
1203
1204         /*
1205          *  We may have been supplied with instructions regarding the location
1206          *  to which we must return after posting.  If found, go there.
1207          */
1208         if (havebstr("return_to")) {
1209                 http_redirect(bstr("return_to"));
1210         }
1211         /*
1212          *  If we were editing a page in a wiki room, go to that page now.
1213          */
1214         else if (havebstr("page")) {
1215                 snprintf(buf, sizeof buf, "wiki?page=%s", bstr("page"));
1216                 http_redirect(buf);
1217         }
1218         /*
1219          *  Otherwise, just go to the "read messages" loop.
1220          */
1221         else {
1222                 readloop(readnew, eUseDefault);
1223         }
1224 }
1225
1226
1227
1228
1229 /*
1230  * display the message entry screen
1231  */
1232 void display_enter(void)
1233 {
1234         char buf[SIZ];
1235         long now;
1236         const StrBuf *display_name = NULL;
1237         int recipient_required = 0;
1238         int subject_required = 0;
1239         int recipient_bad = 0;
1240         int is_anonymous = 0;
1241         wcsession *WCC = WC;
1242
1243         now = time(NULL);
1244
1245         if (havebstr("force_room")) {
1246                 gotoroom(sbstr("force_room"));
1247         }
1248
1249         display_name = sbstr("display_name");
1250         if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1251                 display_name = NULL;
1252                 is_anonymous = 1;
1253         }
1254
1255         /* First test to see whether this is a room that requires recipients to be entered */
1256         serv_puts("ENT0 0");
1257         serv_getln(buf, sizeof buf);
1258
1259         if (!strncmp(buf, "570", 3)) {          /* 570 means that we need a recipient here */
1260                 recipient_required = 1;
1261         }
1262         else if (buf[0] != '2') {               /* Any other error means that we cannot continue */
1263                 sprintf(WCC->ImportantMessage, "%s", &buf[4]);
1264                 readloop(readnew, eUseDefault);
1265                 return;
1266         }
1267
1268         /* Is the server strongly recommending that the user enter a message subject? */
1269         if ((buf[3] != '\0') && (buf[4] != '\0')) {
1270                 subject_required = extract_int(&buf[4], 1);
1271         }
1272
1273         /*
1274          * Are we perhaps in an address book view?  If so, then an "enter
1275          * message" command really means "add new entry."
1276          */
1277         if (WCC->CurRoom.defview == VIEW_ADDRESSBOOK) {
1278                 do_edit_vcard(-1, "", NULL, NULL, "",  ChrPtr(WCC->CurRoom.name));
1279                 return;
1280         }
1281
1282         /*
1283          * Are we perhaps in a calendar room?  If so, then an "enter
1284          * message" command really means "add new calendar item."
1285          */
1286         if (WCC->CurRoom.defview == VIEW_CALENDAR) {
1287                 display_edit_event();
1288                 return;
1289         }
1290
1291         /*
1292          * Are we perhaps in a tasks view?  If so, then an "enter
1293          * message" command really means "add new task."
1294          */
1295         if (WCC->CurRoom.defview == VIEW_TASKS) {
1296                 display_edit_task();
1297                 return;
1298         }
1299
1300         /*
1301          * Otherwise proceed normally.
1302          * Do a custom room banner with no navbar...
1303          */
1304
1305         if (recipient_required) {
1306                 const StrBuf *Recp = NULL;
1307                 const StrBuf *Cc = NULL;
1308                 const StrBuf *Bcc = NULL;
1309                 const StrBuf *Wikipage = NULL;
1310                 StrBuf *CmdBuf = NULL;
1311                 const char CMD[] = "ENT0 0|%s|%d|0||%s||%s|%s|%s";
1312
1313                 Recp = sbstr("recp");
1314                 Cc = sbstr("cc");
1315                 Bcc = sbstr("bcc");
1316                 Wikipage = sbstr("page");
1317
1318                 CmdBuf = NewStrBufPlain(NULL,
1319                                         sizeof (CMD) +
1320                                         StrLength(Recp) +
1321                                         StrLength(display_name) +
1322                                         StrLength(Cc) +
1323                                         StrLength(Bcc) +
1324                                         StrLength(Wikipage));
1325
1326                 StrBufPrintf(CmdBuf,
1327                              CMD,
1328                              ChrPtr(Recp),
1329                              is_anonymous,
1330                              ChrPtr(display_name),
1331                              ChrPtr(Cc),
1332                              ChrPtr(Bcc),
1333                              ChrPtr(Wikipage));
1334                 serv_puts(ChrPtr(CmdBuf));
1335                 serv_getln(buf, sizeof buf);
1336                 FreeStrBuf(&CmdBuf);
1337
1338                 if (!strncmp(buf, "570", 3)) {  /* 570 means we have an invalid recipient listed */
1339                         if (havebstr("recp") &&
1340                             havebstr("cc"  ) &&
1341                             havebstr("bcc" )) {
1342                                 recipient_bad = 1;
1343                         }
1344                 }
1345                 else if (buf[0] != '2') {       /* Any other error means that we cannot continue */
1346                         wc_printf("<em>%s</em><br />\n", &buf[4]);      /* TODO -> important message */
1347                         return;
1348                 }
1349         }
1350         svputlong("RCPTREQUIRED", recipient_required);
1351         svputlong("SUBJREQUIRED", recipient_required || subject_required);
1352
1353         begin_burst();
1354         output_headers(1, 0, 0, 0, 1, 0);
1355         DoTemplate(HKEY("edit_message"), NULL, &NoCtx);
1356         end_burst();
1357
1358         return;
1359 }
1360
1361 /*
1362  * delete a message
1363  */
1364 void delete_msg(void)
1365 {
1366         long msgid;
1367         char buf[SIZ];
1368
1369         msgid = lbstr("msgid");
1370
1371         if ((WC->CurRoom.RAFlags & UA_ISTRASH) != 0) {  /* Delete from Trash is a real delete */
1372                 serv_printf("DELE %ld", msgid);
1373         }
1374         else {                  /* Otherwise move it to Trash */
1375                 serv_printf("MOVE %ld|_TRASH_|0", msgid);
1376         }
1377
1378         serv_getln(buf, sizeof buf);
1379         sprintf(WC->ImportantMessage, "%s", &buf[4]);
1380         readloop(readnew, eUseDefault);
1381 }
1382
1383
1384 /*
1385  * move a message to another room
1386  */
1387 void move_msg(void)
1388 {
1389         long msgid;
1390         char buf[SIZ];
1391
1392         msgid = lbstr("msgid");
1393
1394         if (havebstr("move_button")) {
1395                 sprintf(buf, "MOVE %ld|%s", msgid, bstr("target_room"));
1396                 serv_puts(buf);
1397                 serv_getln(buf, sizeof buf);
1398                 sprintf(WC->ImportantMessage, "%s", &buf[4]);
1399         } else {
1400                 sprintf(WC->ImportantMessage, (_("The message was not moved.")));
1401         }
1402
1403         readloop(readnew, eUseDefault);
1404 }
1405
1406
1407 /*
1408  * Confirm move of a message
1409  */
1410 void confirm_move_msg(void)
1411 {
1412         long msgid;
1413         char buf[SIZ];
1414         char targ[SIZ];
1415
1416         msgid = lbstr("msgid");
1417
1418
1419         output_headers(1, 1, 2, 0, 0, 0);
1420         wc_printf("<div id=\"banner\">\n");
1421         wc_printf("<h1>");
1422         wc_printf(_("Confirm move of message"));
1423         wc_printf("</h1>");
1424         wc_printf("</div>\n");
1425
1426         wc_printf("<div id=\"content\" class=\"service\">\n");
1427
1428         wc_printf("<CENTER>");
1429
1430         wc_printf(_("Move this message to:"));
1431         wc_printf("<br />\n");
1432
1433         wc_printf("<form METHOD=\"POST\" action=\"move_msg\">\n");
1434         wc_printf("<input type=\"hidden\" name=\"nonce\" value=\"%d\">\n", WC->nonce);
1435         wc_printf("<INPUT TYPE=\"hidden\" NAME=\"msgid\" VALUE=\"%s\">\n", bstr("msgid"));
1436
1437         wc_printf("<SELECT NAME=\"target_room\" SIZE=5>\n");
1438         serv_puts("LKRA");
1439         serv_getln(buf, sizeof buf);
1440         if (buf[0] == '1') {
1441                 while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
1442                         extract_token(targ, buf, 0, '|', sizeof targ);
1443                         wc_printf("<OPTION>");
1444                         escputs(targ);
1445                         wc_printf("\n");
1446                 }
1447         }
1448         wc_printf("</SELECT>\n");
1449         wc_printf("<br />\n");
1450
1451         wc_printf("<INPUT TYPE=\"submit\" NAME=\"move_button\" VALUE=\"%s\">", _("Move"));
1452         wc_printf("&nbsp;");
1453         wc_printf("<INPUT TYPE=\"submit\" NAME=\"cancel_button\" VALUE=\"%s\">", _("Cancel"));
1454         wc_printf("</form></CENTER>\n");
1455
1456         wc_printf("</CENTER>\n");
1457         wDumpContent(1);
1458 }
1459
1460
1461 /*
1462  * Generic function to output an arbitrary MIME attachment from
1463  * message being composed
1464  *
1465  * partnum              The MIME part to be output
1466  * filename             Fake filename to give
1467  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1468  */
1469 void postpart(StrBuf *partnum, StrBuf *filename, int force_download)
1470 {
1471         void *vPart;
1472         StrBuf *content_type;
1473         wc_mime_attachment *part;
1474
1475         if (GetHash(WC->attachments, SKEY(partnum), &vPart) &&
1476             (vPart != NULL)) {
1477                 part = (wc_mime_attachment*) vPart;
1478                 if (force_download) {
1479                         content_type = NewStrBufPlain(HKEY("application/octet-stream"));
1480                 }
1481                 else {
1482                         content_type = NewStrBufDup(part->ContentType);
1483                 }
1484                 StrBufAppendBuf(WC->WBuf, part->Data, 0);
1485                 http_transmit_thing(ChrPtr(content_type), 0);
1486         } else {
1487                 hprintf("HTTP/1.1 404 %s\n", ChrPtr(partnum));
1488                 output_headers(0, 0, 0, 0, 0, 0);
1489                 hprintf("Content-Type: text/plain\r\n");
1490                 begin_burst();
1491                 wc_printf(_("An error occurred while retrieving this part: %s/%s\n"),
1492                         ChrPtr(partnum), ChrPtr(filename));
1493                 end_burst();
1494         }
1495         FreeStrBuf(&content_type);
1496 }
1497
1498
1499 /*
1500  * Generic function to output an arbitrary MIME part from an arbitrary
1501  * message number on the server.
1502  *
1503  * msgnum               Number of the item on the citadel server
1504  * partnum              The MIME part to be output
1505  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1506  */
1507 void mimepart(int force_download)
1508 {
1509         long msgnum;
1510         StrBuf *att;
1511         wcsession *WCC = WC;
1512         StrBuf *Buf;
1513         off_t bytes;
1514         StrBuf *ContentType = NewStrBufPlain(HKEY("application/octet-stream"));
1515         const char *CT;
1516
1517         att = Buf = NewStrBuf();
1518         msgnum = StrBufExtract_long(WCC->Hdr->HR.ReqLine, 0, '/');
1519         StrBufExtract_token(att, WCC->Hdr->HR.ReqLine, 1, '/');
1520
1521         serv_printf("OPNA %ld|%s", msgnum, ChrPtr(att));
1522         StrBuf_ServGetln(Buf);
1523         if (GetServerStatus(Buf, NULL) == 2) {
1524                 StrBufCutLeft(Buf, 4);
1525                 bytes = StrBufExtract_long(Buf, 0, '|');
1526                 if (!force_download) {
1527                         StrBufExtract_token(ContentType, Buf, 3, '|');
1528                 }
1529
1530                 serv_read_binary(WCC->WBuf, bytes, Buf);
1531                 serv_puts("CLOS");
1532                 StrBuf_ServGetln(Buf);
1533                 CT = ChrPtr(ContentType);
1534
1535                 if (!force_download) {
1536                         if (!strcasecmp(ChrPtr(ContentType), "application/octet-stream")) {
1537                                 StrBufExtract_token(Buf, WCC->Hdr->HR.ReqLine, 2, '/');
1538                                 CT = GuessMimeByFilename(SKEY(Buf));
1539                         }
1540                         if (!strcasecmp(ChrPtr(ContentType), "application/octet-stream")) {
1541                                 CT = GuessMimeType(SKEY(WCC->WBuf));
1542                         }
1543                 }
1544                 http_transmit_thing(CT, 0);
1545         } else {
1546                 StrBufCutLeft(Buf, 4);
1547                 hprintf("HTTP/1.1 404 %s\n", ChrPtr(Buf));
1548                 output_headers(0, 0, 0, 0, 0, 0);
1549                 hprintf("Content-Type: text/plain\r\n");
1550                 begin_burst();
1551                 wc_printf(_("An error occurred while retrieving this part: %s\n"),
1552                         ChrPtr(Buf));
1553                 end_burst();
1554         }
1555         FreeStrBuf(&ContentType);
1556         FreeStrBuf(&Buf);
1557 }
1558
1559
1560 /*
1561  * Read any MIME part of a message, from the server, into memory.
1562  */
1563 StrBuf *load_mimepart(long msgnum, char *partnum)
1564 {
1565         off_t bytes;
1566         StrBuf *Buf;
1567
1568         Buf = NewStrBuf();
1569         serv_printf("DLAT %ld|%s", msgnum, partnum);
1570         StrBuf_ServGetln(Buf);
1571         if (GetServerStatus(Buf, NULL) == 6) {
1572                 StrBufCutLeft(Buf, 4);
1573                 bytes = StrBufExtract_long(Buf, 0, '|');
1574                 FreeStrBuf(&Buf);
1575                 Buf = NewStrBuf();
1576                 StrBuf_ServGetBLOBBuffered(Buf, bytes);
1577                 return(Buf);
1578         }
1579         else {
1580                 FreeStrBuf(&Buf);
1581                 return(NULL);
1582         }
1583 }
1584
1585 /*
1586  * Read any MIME part of a message, from the server, into memory.
1587  */
1588 void MimeLoadData(wc_mime_attachment *Mime)
1589 {
1590         StrBuf *Buf;
1591         const char *Ptr;
1592         off_t bytes;
1593         /* TODO: is there a chance the content type is different from the one we know? */
1594
1595         serv_printf("DLAT %ld|%s", Mime->msgnum, ChrPtr(Mime->PartNum));
1596         Buf = NewStrBuf();
1597         StrBuf_ServGetln(Buf);
1598         if (GetServerStatus(Buf, NULL) == 6) {
1599                 Ptr = &(ChrPtr(Buf)[4]);
1600                 bytes = StrBufExtractNext_long(Buf, &Ptr, '|');
1601                 StrBufSkip_NTokenS(Buf, &Ptr, '|', 3);  /* filename, cbtype, mimetype */
1602                 if (Mime->Charset == NULL) Mime->Charset = NewStrBuf();
1603                 StrBufExtract_NextToken(Mime->Charset, Buf, &Ptr, '|');
1604
1605                 if (Mime->Data == NULL)
1606                         Mime->Data = NewStrBufPlain(NULL, bytes);
1607                 StrBuf_ServGetBLOBBuffered(Mime->Data, bytes);
1608         }
1609         else {
1610                 FlushStrBuf(Mime->Data);
1611                 /* TODO XImportant message */
1612         }
1613         FreeStrBuf(&Buf);
1614 }
1615
1616
1617
1618
1619 void view_mimepart(void) {
1620         mimepart(0);
1621 }
1622
1623 void download_mimepart(void) {
1624         mimepart(1);
1625 }
1626
1627 void view_postpart(void) {
1628         StrBuf *filename = NewStrBuf();
1629         StrBuf *partnum = NewStrBuf();
1630
1631         StrBufExtract_token(partnum, WC->Hdr->HR.ReqLine, 0, '/');
1632         StrBufExtract_token(filename, WC->Hdr->HR.ReqLine, 1, '/');
1633
1634         postpart(partnum, filename, 0);
1635
1636         FreeStrBuf(&filename);
1637         FreeStrBuf(&partnum);
1638 }
1639
1640 void download_postpart(void) {
1641         StrBuf *filename = NewStrBuf();
1642         StrBuf *partnum = NewStrBuf();
1643
1644         StrBufExtract_token(partnum, WC->Hdr->HR.ReqLine, 0, '/');
1645         StrBufExtract_token(filename, WC->Hdr->HR.ReqLine, 1, '/');
1646
1647         postpart(partnum, filename, 1);
1648
1649         FreeStrBuf(&filename);
1650         FreeStrBuf(&partnum);
1651 }
1652
1653 void h_readnew(void) { readloop(readnew, eUseDefault);}
1654 void h_readold(void) { readloop(readold, eUseDefault);}
1655 void h_readfwd(void) { readloop(readfwd, eUseDefault);}
1656 void h_headers(void) { readloop(headers, eUseDefault);}
1657 void h_do_search(void) { readloop(do_search, eUseDefault);}
1658 void h_readgt(void) { readloop(readgt, eUseDefault);}
1659 void h_readlt(void) { readloop(readlt, eUseDefault);}
1660
1661 void jsonMessageListHdr(void)
1662 {
1663         /* TODO: make a generic function */
1664         hprintf("HTTP/1.1 200 OK\r\n");
1665         hprintf("Content-type: application/json; charset=utf-8\r\n");
1666         hprintf("Server: %s / %s\r\n", PACKAGE_STRING, ChrPtr(WC->serv_info->serv_software));
1667         hprintf("Connection: close\r\n");
1668         hprintf("Pragma: no-cache\r\nCache-Control: no-store\r\nExpires:-1\r\n");
1669         begin_burst();
1670 }
1671
1672
1673 /* Output message list in JSON format */
1674 void jsonMessageList(void) {
1675         const StrBuf *room = sbstr("room");
1676         long oper = (havebstr("query")) ? do_search : readnew;
1677         WC->is_ajax = 1;
1678         gotoroom(room);
1679         readloop(oper, eUseDefault);
1680         WC->is_ajax = 0;
1681 }
1682
1683 void RegisterReadLoopHandlerset(
1684         int RoomType,
1685         GetParamsGetServerCall_func GetParamsGetServerCall,
1686         PrintViewHeader_func PrintViewHeader,
1687         load_msg_ptrs_detailheaders LH,
1688         LoadMsgFromServer_func LoadMsgFromServer,
1689         RenderView_or_Tail_func RenderView_or_Tail,
1690         View_Cleanup_func ViewCleanup
1691         )
1692 {
1693         RoomRenderer *Handler;
1694
1695         Handler = (RoomRenderer*) malloc(sizeof(RoomRenderer));
1696
1697         Handler->RoomType = RoomType;
1698         Handler->GetParamsGetServerCall = GetParamsGetServerCall;
1699         Handler->PrintViewHeader = PrintViewHeader;
1700         Handler->LoadMsgFromServer = LoadMsgFromServer;
1701         Handler->RenderView_or_Tail = RenderView_or_Tail;
1702         Handler->ViewCleanup = ViewCleanup;
1703         Handler->LHParse = LH;
1704
1705         Put(ReadLoopHandler, IKEY(RoomType), Handler, NULL);
1706 }
1707
1708 void
1709 InitModule_MSG
1710 (void)
1711 {
1712         RegisterPreference("use_sig",
1713                            _("Attach signature to email messages?"),
1714                            PRF_YESNO,
1715                            NULL);
1716         RegisterPreference("signature", _("Use this signature:"), PRF_QP_STRING, NULL);
1717         RegisterPreference("default_header_charset",
1718                            _("Default character set for email headers:"),
1719                            PRF_STRING,
1720                            NULL);
1721         RegisterPreference("defaultfrom", _("Preferred email address"), PRF_STRING, NULL);
1722         RegisterPreference("defaultname",
1723                            _("Preferred display name for email messages"),
1724                            PRF_STRING,
1725                            NULL);
1726         RegisterPreference("defaulthandle",
1727                            _("Preferred display name for bulletin board posts"),
1728                            PRF_STRING,
1729                            NULL);
1730         RegisterPreference("mailbox",_("Mailbox view mode"), PRF_STRING, NULL);
1731
1732         WebcitAddUrlHandler(HKEY("readnew"), "", 0, h_readnew, NEED_URL);
1733         WebcitAddUrlHandler(HKEY("readold"), "", 0, h_readold, NEED_URL);
1734         WebcitAddUrlHandler(HKEY("readfwd"), "", 0, h_readfwd, NEED_URL);
1735         WebcitAddUrlHandler(HKEY("headers"), "", 0, h_headers, NEED_URL);
1736         WebcitAddUrlHandler(HKEY("readgt"), "", 0, h_readgt, NEED_URL);
1737         WebcitAddUrlHandler(HKEY("readlt"), "", 0, h_readlt, NEED_URL);
1738         WebcitAddUrlHandler(HKEY("do_search"), "", 0, h_do_search, 0);
1739         WebcitAddUrlHandler(HKEY("display_enter"), "", 0, display_enter, 0);
1740         WebcitAddUrlHandler(HKEY("post"), "", 0, post_message, PROHIBIT_STARTPAGE);
1741         WebcitAddUrlHandler(HKEY("move_msg"), "", 0, move_msg, PROHIBIT_STARTPAGE);
1742         WebcitAddUrlHandler(HKEY("delete_msg"), "", 0, delete_msg, PROHIBIT_STARTPAGE);
1743         WebcitAddUrlHandler(HKEY("confirm_move_msg"), "", 0, confirm_move_msg, PROHIBIT_STARTPAGE);
1744         WebcitAddUrlHandler(HKEY("msg"), "", 0, embed_message, NEED_URL);
1745         WebcitAddUrlHandler(HKEY("message"), "", 0, handle_one_message, NEED_URL|XHTTP_COMMANDS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
1746         WebcitAddUrlHandler(HKEY("printmsg"), "", 0, print_message, NEED_URL);
1747         WebcitAddUrlHandler(HKEY("mobilemsg"), "", 0, mobile_message_view, NEED_URL);
1748         WebcitAddUrlHandler(HKEY("msgheaders"), "", 0, display_headers, NEED_URL);
1749
1750         WebcitAddUrlHandler(HKEY("mimepart"), "", 0, view_mimepart, NEED_URL);
1751         WebcitAddUrlHandler(HKEY("mimepart_download"), "", 0, download_mimepart, NEED_URL);
1752         WebcitAddUrlHandler(HKEY("postpart"), "", 0, view_postpart, NEED_URL|PROHIBIT_STARTPAGE);
1753         WebcitAddUrlHandler(HKEY("postpart_download"), "", 0, download_postpart, NEED_URL|PROHIBIT_STARTPAGE);
1754
1755         /* json */
1756         WebcitAddUrlHandler(HKEY("roommsgs"), "", 0, jsonMessageList,0);
1757         return ;
1758 }
1759
1760 void
1761 SessionDetachModule_MSG
1762 (wcsession *sess)
1763 {
1764         DeleteHash(&sess->summ);
1765 }