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