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->wc_is_trash) { /* 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->wc_is_trash) { /* 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, SharedMessageStatus *Stat)
 576 {
 577         StrBuf* FoundCharset = NULL;
 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) {
 637                                 Msg->from = NewStrBufPlain(NULL, StrLength(Buf));
 638                                 StrBufExtract_NextToken(Buf2, Buf, &Ptr, '|');
 639                                 if (StrLength(Buf2) != 0) {
 640                                         /* Handle senders with RFC2047 encoding */
 641                                         StrBuf_RFC822_to_Utf8(Msg->from, Buf2, WCC->DefaultCharset, FoundCharset);
 642                                 }
 643
 644                                 /* node name */
 645                                 StrBufExtract_NextToken(Buf2, Buf, &Ptr, '|');
 646                                 if ((StrLength(Buf2) !=0 ) &&
 647                                     ( ((WCC->room_flags & QR_NETWORK)
 648                                        || ((strcasecmp(ChrPtr(Buf2), ChrPtr(WCC->serv_info->serv_nodename))
 649                                             && (strcasecmp(ChrPtr(Buf2), ChrPtr(WCC->serv_info->serv_fqdn))))))))
 650                                 {
 651                                         StrBufAppendBufPlain(Msg->from, HKEY(" @ "), 0);
 652                                         StrBufAppendBuf(Msg->from, Buf2, 0);
 653                                 }
 654
 655                                 /* Internet address (not used)
 656                                  *      StrBufExtract_token(Msg->inetaddr, Buf, 4, '|');
 657                                  */
 658                                 StrBufSkip_NTokenS(Buf, &Ptr, '|', 1);
 659                                 Msg->subj = NewStrBufPlain(NULL, StrLength(Buf));
 660                                 StrBufExtract_NextToken(Buf2,  Buf, &Ptr, '|');
 661                                 if (StrLength(Buf2) == 0)
 662                                         StrBufAppendBufPlain(Msg->subj, _("(no subject)"), -1,0);
 663                                 else {
 664                                         StrBuf_RFC822_to_Utf8(Msg->subj, Buf2, WCC->DefaultCharset, FoundCharset);
 665                                         if ((StrLength(Msg->subj) > 75) &&
 666                                             (StrBuf_Utf8StrLen(Msg->subj) > 75)) {
 667                                                 StrBuf_Utf8StrCut(Msg->subj, 72);
 668                                                 StrBufAppendBufPlain(Msg->subj, HKEY("..."), 0);
 669                                         }
 670                                 }
 671
 672                                 if ((StrLength(Msg->from) > 25) &&
 673                                     (StrBuf_Utf8StrLen(Msg->from) > 25)) {
 674                                         StrBuf_Utf8StrCut(Msg->from, 23);
 675                                         StrBufAppendBufPlain(Msg->from, HKEY("..."), 0);
 676                                 }
 677                         }
 678                         n = Msg->msgnum;
 679                         Put(WCC->summ, (const char *)&n, sizeof(n), Msg, DestroyMessageSummary);
 680                 }
 681                 Stat->nummsgs++;
 682         }
 683         FreeStrBuf(&Buf2);
 684         FreeStrBuf(&Buf);
 685         return (Stat->nummsgs);
 686 }
 687
 688
 689 inline message_summary* GetMessagePtrAt(int n, HashList *Summ)
 690 {
 691         const char *Key;
 692         long HKLen;
 693         void *vMsg;
 694
 695         if (Summ == NULL)
 696                 return NULL;
 697         GetHashAt(Summ, n, &HKLen, &Key, &vMsg);
 698         return (message_summary*) vMsg;
 699 }
 700
 701
 702
 703 void load_seen_flags(void)
 704 {
 705         message_summary *Msg;
 706         const char *HashKey;
 707         long HKLen;
 708         HashPos *at;
 709         void *vMsg;
 710         StrBuf *OldMsg;
 711         wcsession *WCC = WC;
 712
 713         OldMsg = NewStrBuf();
 714         serv_puts("GTSN");
 715         StrBuf_ServGetln(OldMsg);
 716         if (GetServerStatus(OldMsg, NULL) == 2) {
 717                 StrBufCutLeft(OldMsg, 4);
 718         }
 719         else {
 720                 FreeStrBuf(&OldMsg);
 721                 return;
 722         }
 723         at = GetNewHashPos(WCC->summ, 0);
 724         while (GetNextHashPos(WCC->summ, at, &HKLen, &HashKey, &vMsg)) {
 725                 /* Are you a new message, or an old message? */
 726                 Msg = (message_summary*) vMsg;
 727                 if (is_msg_in_mset(ChrPtr(OldMsg), Msg->msgnum)) {
 728                         Msg->is_new = 0;
 729                 }
 730                 else {
 731                         Msg->is_new = 1;
 732                 }
 733         }
 734         FreeStrBuf(&OldMsg);
 735         DeleteHashPos(&at);
 736 }
 737
 738 extern readloop_struct rlid[];
 739
 740 typedef struct _RoomRenderer{
 741         int RoomType;
 742
 743         GetParamsGetServerCall_func GetParamsGetServerCall;
 744         PrintViewHeader_func PrintViewHeader;
 745         LoadMsgFromServer_func LoadMsgFromServer;
 746         RenderView_or_Tail_func RenderView_or_Tail;
 747         View_Cleanup_func ViewCleanup;
 748 } RoomRenderer;
 749
 750
 751 /*
 752  * command loop for reading messages
 753  *
 754  * Set oper to "readnew" or "readold" or "readfwd" or "headers" or "readgt" or "do_search"
 755  */
 756 void readloop(long oper)
 757 {
 758         RoomRenderer *ViewMsg;
 759         void *vViewMsg;
 760         void *vMsg;
 761         message_summary *Msg;
 762         char cmd[256] = "";
 763         int i, r;
 764         wcsession *WCC = WC;
 765         HashPos *at;
 766         const char *HashKey;
 767         long HKLen;
 768         WCTemplputParams SubTP;
 769         SharedMessageStatus Stat;
 770         void *ViewSpecific;
 771
 772         if (havebstr("is_summary") && (1 == (ibstr("is_summary")))) {
 773                 WCC->wc_view = VIEW_MAILBOX;
 774         }
 775
 776         if (WCC->wc_view == VIEW_WIKI) {
 777                 display_wiki_pagelist();
 778                 return;
 779         }
 780
 781         memset(&Stat, 0, sizeof(SharedMessageStatus));
 782         Stat.maxload = 10000;
 783         Stat.lowest_found = (-1);
 784         Stat.highest_found = (-1);
 785         GetHash(ReadLoopHandler, IKEY(WCC->wc_view), &vViewMsg);
 786         if (vViewMsg == NULL) {
 787                 WCC->wc_view = VIEW_BBS;
 788                 GetHash(ReadLoopHandler, IKEY(WCC->wc_view), &vViewMsg);
 789         }
 790         if (vViewMsg == NULL) {
 791                 return;                 // TODO: print message
 792         }
 793
 794         ViewMsg = (RoomRenderer*) vViewMsg;
 795         if (!WCC->is_ajax) {
 796                 output_headers(1, 1, 1, 0, 0, 0);
 797         } else if (WCC->wc_view == VIEW_MAILBOX) {
 798                 jsonMessageListHdr();
 799         }
 800
 801         if (ViewMsg->GetParamsGetServerCall != NULL) {
 802                 r = ViewMsg->GetParamsGetServerCall(
 803                        &Stat,
 804                        &ViewSpecific,
 805                        oper,
 806                        cmd, sizeof(cmd)
 807                 );
 808         } else {
 809                 r = 0;
 810         }
 811         switch(r)
 812         {
 813         case 400:
 814         case 404:
 815
 816                 return;
 817         case 300: /* the callback hook should do the work for us here, since he knows what to do. */
 818                 return;
 819         case 200:
 820         default:
 821                 break;
 822         }
 823         if (!IsEmptyStr(cmd))
 824                 Stat.nummsgs = load_msg_ptrs(cmd, &Stat);
 825
 826         if (Stat.sortit) {
 827                 CompareFunc SortIt;
 828                 memset(&SubTP, 0, sizeof(WCTemplputParams));
 829                 SubTP.Filter.ContextType = CTX_MAILSUM;
 830                 SubTP.Context = NULL;
 831                 SortIt =  RetrieveSort(&SubTP, NULL, 0,
 832                                        HKEY("date"), Stat.defaultsortorder);
 833                 if (SortIt != NULL)
 834                         SortByPayload(WCC->summ, SortIt);
 835         }
 836         if (Stat.startmsg < 0)
 837                 Stat.startmsg = (Stat.reverse) ? Stat.nummsgs - 1 : 0;
 838
 839         if (Stat.load_seen) load_seen_flags();
 840
 841         /*
 842          * Print any inforation above the message list...
 843          */
 844         if (ViewMsg->PrintViewHeader != NULL)
 845                 ViewMsg->PrintViewHeader(&Stat, &ViewSpecific);
 846
 847         WCC->startmsg =  Stat.startmsg;
 848         WCC->maxmsgs = Stat.maxmsgs;
 849         WCC->num_displayed = 0;
 850
 851         /* Put some helpful data in vars for mailsummary_json */
 852         svputlong("READLOOP:TOTALMSGS", Stat.nummsgs);
 853         svputlong("READLOOP:STARTMSG", Stat.startmsg);
 854         svputlong("WCVIEW", WCC->wc_view);
 855
 856         /*
 857          * iterate over each message. if we need to load an attachment, do it here.
 858          */
 859
 860         if ((ViewMsg->LoadMsgFromServer != NULL) &&
 861             (!IsEmptyStr(cmd)))
 862         {
 863                 at = GetNewHashPos(WCC->summ, 0);
 864                 Stat.num_displayed = i = 0;
 865                 while ( GetNextHashPos(WCC->summ, at, &HKLen, &HashKey, &vMsg)) {
 866                         Msg = (message_summary*) vMsg;
 867                         if ((Msg->msgnum >= Stat.startmsg) && (Stat.num_displayed <= Stat.maxmsgs)) {
 868                                 ViewMsg->LoadMsgFromServer(&Stat, &ViewSpecific, Msg, Msg->is_new, i);
 869                         }
 870                         i++;
 871                 }
 872                 DeleteHashPos(&at);
 873         }
 874
 875         /*
 876          * Done iterating the message list. now tasks we want to do after.
 877          */
 878         if (ViewMsg->RenderView_or_Tail != NULL)
 879                 ViewMsg->RenderView_or_Tail(&Stat, &ViewSpecific, oper);
 880
 881         if (ViewMsg->ViewCleanup != NULL)
 882                 ViewMsg->ViewCleanup(&ViewSpecific);
 883
 884         WCC->startmsg = 0;
 885         WCC->maxmsgs = 0;
 886         if (WCC->summ != NULL) {
 887                 DeleteHash(&WCC->summ);
 888         }
 889 }
 890
 891
 892 /*
 893  * Back end for post_message()
 894  * ... this is where the actual message gets transmitted to the server.
 895  */
 896 void post_mime_to_server(void) {
 897         wcsession *WCC = WC;
 898         char top_boundary[SIZ];
 899         char alt_boundary[SIZ];
 900         int is_multipart = 0;
 901         static int seq = 0;
 902         wc_mime_attachment *att;
 903         char *encoded;
 904         size_t encoded_length;
 905         size_t encoded_strlen;
 906         char *txtmail = NULL;
 907         int include_text_alt = 0;       /* Set to nonzero to include multipart/alternative text/plain */
 908
 909         sprintf(top_boundary, "Citadel--Multipart--%s--%04x--%04x",
 910                 ChrPtr(WCC->serv_info->serv_fqdn),
 911                 getpid(),
 912                 ++seq
 913         );
 914         sprintf(alt_boundary, "Citadel--Multipart--%s--%04x--%04x",
 915                 ChrPtr(WCC->serv_info->serv_fqdn),
 916                 getpid(),
 917                 ++seq
 918         );
 919
 920         /* RFC2045 requires this, and some clients look for it... */
 921         serv_puts("MIME-Version: 1.0");
 922         serv_puts("X-Mailer: " PACKAGE_STRING);
 923
 924         /* If there are attachments, we have to do multipart/mixed */
 925         if (GetCount(WCC->attachments) > 0) {
 926                 is_multipart = 1;
 927         }
 928
 929         /* Only do multipart/alternative for mailboxes.  BBS and Wiki rooms don't need it. */
 930         if (WC->wc_view == VIEW_MAILBOX) {
 931                 include_text_alt = 1;
 932         }
 933
 934         if (is_multipart) {
 935                 /* Remember, serv_printf() appends an extra newline */
 936                 serv_printf("Content-type: multipart/mixed; boundary=\"%s\"\n", top_boundary);
 937                 serv_printf("This is a multipart message in MIME format.\n");
 938                 serv_printf("--%s", top_boundary);
 939         }
 940
 941         /* Remember, serv_printf() appends an extra newline */
 942         if (include_text_alt) {
 943                 serv_printf("Content-type: multipart/alternative; "
 944                         "boundary=\"%s\"\n", alt_boundary);
 945                 serv_printf("This is a multipart message in MIME format.\n");
 946                 serv_printf("--%s", alt_boundary);
 947
 948                 serv_puts("Content-type: text/plain; charset=utf-8");
 949                 serv_puts("Content-Transfer-Encoding: quoted-printable");
 950                 serv_puts("");
 951                 txtmail = html_to_ascii(bstr("msgtext"), 0, 80, 0);
 952                 text_to_server_qp(txtmail);     /* Transmit message in quoted-printable encoding */
 953                 free(txtmail);
 954
 955                 serv_printf("--%s", alt_boundary);
 956         }
 957
 958         serv_puts("Content-type: text/html; charset=utf-8");
 959         serv_puts("Content-Transfer-Encoding: quoted-printable");
 960         serv_puts("");
 961         serv_puts("<html><body>\r\n");
 962         text_to_server_qp(bstr("msgtext"));     /* Transmit message in quoted-printable encoding */
 963         serv_puts("</body></html>\r\n");
 964
 965         if (include_text_alt) {
 966                 serv_printf("--%s--", alt_boundary);
 967         }
 968
 969         if (is_multipart) {
 970                 long len;
 971                 const char *Key;
 972                 void *vAtt;
 973                 HashPos  *it;
 974
 975                 /* Add in the attachments */
 976                 it = GetNewHashPos(WCC->attachments, 0);
 977                 while (GetNextHashPos(WCC->attachments, it, &len, &Key, &vAtt)) {
 978                         att = (wc_mime_attachment *)vAtt;
 979                         if (att->length == 0)
 980                                 continue;
 981                         encoded_length = ((att->length * 150) / 100);
 982                         encoded = malloc(encoded_length);
 983                         if (encoded == NULL) break;
 984                         encoded_strlen = CtdlEncodeBase64(encoded, ChrPtr(att->Data), StrLength(att->Data), 1);
 985
 986                         serv_printf("--%s", top_boundary);
 987                         serv_printf("Content-type: %s", ChrPtr(att->ContentType));
 988                         serv_printf("Content-disposition: attachment; filename=\"%s\"", ChrPtr(att->FileName));
 989                         serv_puts("Content-transfer-encoding: base64");
 990                         serv_puts("");
 991                         serv_write(encoded, encoded_strlen);
 992                         serv_puts("");
 993                         serv_puts("");
 994                         free(encoded);
 995                 }
 996                 serv_printf("--%s--", top_boundary);
 997                 DeleteHashPos(&it);
 998         }
 999
1000         serv_puts("000");
1001 }
1002
1003
1004 /*
1005  * Post message (or don't post message)
1006  *
1007  * Note regarding the "dont_post" variable:
1008  * A random value (actually, it's just a timestamp) is inserted as a hidden
1009  * field called "postseq" when the display_enter page is generated.  This
1010  * value is checked when posting, using the static variable dont_post.  If a
1011  * user attempts to post twice using the same dont_post value, the message is
1012  * discarded.  This prevents the accidental double-saving of the same message
1013  * if the user happens to click the browser "back" button.
1014  */
1015 void post_message(void)
1016 {
1017         char buf[1024];
1018         StrBuf *encoded_subject = NULL;
1019         static long dont_post = (-1L);
1020         wc_mime_attachment  *att;
1021         int is_anonymous = 0;
1022         const StrBuf *display_name = NULL;
1023         wcsession *WCC = WC;
1024         StrBuf *Buf;
1025
1026         if (havebstr("force_room")) {
1027                 gotoroom(sbstr("force_room"));
1028         }
1029
1030         if (havebstr("display_name")) {
1031                 display_name = sbstr("display_name");
1032                 if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1033                         display_name = NULL;
1034                         is_anonymous = 1;
1035                 }
1036         }
1037
1038         if (WCC->upload_length > 0) {
1039                 const char *pch;
1040                 int n;
1041                 char N[64];
1042
1043                 /* There's an attachment.  Save it to this struct... */
1044                 lprintf(9, "Client is uploading %d bytes\n", WCC->upload_length);
1045                 att = malloc(sizeof(wc_mime_attachment));
1046                 memset(att, 0, sizeof(wc_mime_attachment ));
1047                 att->length = WCC->upload_length;
1048                 att->ContentType = NewStrBufPlain(WCC->upload_content_type, -1);
1049                 att->FileName = NewStrBufPlain(WCC->upload_filename, -1);
1050
1051                 if (WCC->attachments == NULL) {
1052                         WCC->attachments = NewHash(1, NULL);
1053                 }
1054
1055                 /* And add it to the list. */
1056                 n = snprintf(N, sizeof N, "%d", GetCount(WCC->attachments) + 1);
1057                 Put(WCC->attachments, N, n, att, DestroyMime);
1058
1059                 /*
1060                  * Mozilla sends a simple filename, which is what we want,
1061                  * but Satan's Browser sends an entire pathname.  Reduce
1062                  * the path to just a filename if we need to.
1063                  */
1064                 pch = strrchr(ChrPtr(att->FileName), '/');
1065                 if (pch != NULL) {
1066                         StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1067                 }
1068                 pch = strrchr(ChrPtr(att->FileName), '\\');
1069                 if (pch != NULL) {
1070                         StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1071                 }
1072
1073                 /*
1074                  * Transfer control of this memory from the upload struct
1075                  * to the attachment struct.
1076                  */
1077                 att->Data = WCC->upload;
1078                 WCC->upload = NULL;
1079                 WCC->upload_length = 0;
1080                 display_enter();
1081                 return;
1082         }
1083
1084         if (havebstr("cancel_button")) {
1085                 sprintf(WCC->ImportantMessage,
1086                         _("Cancelled.  Message was not posted."));
1087         } else if (havebstr("attach_button")) {
1088                 display_enter();
1089                 return;
1090         } else if (lbstr("postseq") == dont_post) {
1091                 sprintf(WCC->ImportantMessage,
1092                         _("Automatically cancelled because you have already "
1093                         "saved this message."));
1094         } else {
1095                 const char CMD[] = "ENT0 1|%s|%d|4|%s|%s||%s|%s|%s|%s|%s";
1096                 const StrBuf *Recp = NULL;
1097                 const StrBuf *Cc = NULL;
1098                 const StrBuf *Bcc = NULL;
1099                 const StrBuf *Wikipage = NULL;
1100                 const StrBuf *my_email_addr = NULL;
1101                 StrBuf *CmdBuf = NULL;
1102                 StrBuf *references = NULL;
1103                 int save_to_drafts;
1104
1105                 save_to_drafts = havebstr("save_button");
1106                 Buf = NewStrBuf();
1107
1108                 if (save_to_drafts) {
1109                         /* temporarily change to the drafts room */
1110                         serv_puts("GOTO _DRAFTS_");
1111                         StrBuf_ServGetln(Buf);
1112                         if (GetServerStatus(Buf, NULL) != 2) {
1113                                 /* You probably don't even have a dumb Drafts folder */
1114                                 StrBufCutLeft(Buf, 4);
1115                                 lprintf(9, "%s:%d: server save to drafts error: %s\n", __FILE__, __LINE__, ChrPtr(Buf));
1116                                 StrBufAppendBufPlain(WCC->ImportantMsg, _("Saved to Drafts failed: "), -1, 0);
1117                                 StrBufAppendBuf(WCC->ImportantMsg, Buf, 0);
1118                                 display_enter();
1119                                 FreeStrBuf(&Buf);
1120                                 return;
1121                         }
1122                 }
1123
1124                 if (havebstr("references"))
1125                 {
1126                         const StrBuf *ref = sbstr("references");
1127                         references = NewStrBufDup(ref);
1128                         if (*ChrPtr(references) == '|') {       /* remove leading '|' if present */
1129                                 StrBufCutLeft(references, 1);
1130                         }
1131                         StrBufReplaceChars(references, '|', '!');
1132                 }
1133                 if (havebstr("subject")) {
1134                         const StrBuf *Subj;
1135                         /*
1136                          * make enough room for the encoded string;
1137                          * plus the QP header
1138                          */
1139                         Subj = sbstr("subject");
1140
1141                         StrBufRFC2047encode(&encoded_subject, Subj);
1142                 }
1143                 Recp = sbstr("recp");
1144                 Cc = sbstr("cc");
1145                 Bcc = sbstr("bcc");
1146                 Wikipage = sbstr("wikipage");
1147                 my_email_addr = sbstr("my_email_addr");
1148
1149                 CmdBuf = NewStrBufPlain(NULL,
1150                                         sizeof (CMD) +
1151                                         StrLength(Recp) +
1152                                         StrLength(encoded_subject) +
1153                                         StrLength(Cc) +
1154                                         StrLength(Bcc) +
1155                                         StrLength(Wikipage) +
1156                                         StrLength(my_email_addr) +
1157                                         StrLength(references));
1158
1159                 StrBufPrintf(CmdBuf,
1160                              CMD,
1161                              save_to_drafts?"":ChrPtr(Recp),
1162                              is_anonymous,
1163                              ChrPtr(encoded_subject),
1164                              ChrPtr(display_name),
1165                              save_to_drafts?"":ChrPtr(Cc),
1166                              save_to_drafts?"":ChrPtr(Bcc),
1167                              ChrPtr(Wikipage),
1168                              ChrPtr(my_email_addr),
1169                              ChrPtr(references));
1170                 FreeStrBuf(&references);
1171                 FreeStrBuf(&encoded_subject);
1172
1173                 lprintf(9, "%s\n", ChrPtr(CmdBuf));
1174                 serv_puts(ChrPtr(CmdBuf));
1175                 FreeStrBuf(&CmdBuf);
1176
1177                 StrBuf_ServGetln(Buf);
1178                 if (GetServerStatus(Buf, NULL) == 4) {
1179                         if (save_to_drafts) {
1180                                 if (  (havebstr("recp"))
1181                                     || (havebstr("cc"  ))
1182                                     || (havebstr("bcc" )) ) {
1183                                         /* save recipient headers or room to post to */
1184                                         serv_printf("To: %s", ChrPtr(Recp));
1185                                         serv_printf("Cc: %s", ChrPtr(Cc));
1186                                         serv_printf("Bcc: %s", ChrPtr(Bcc));
1187                                 } else {
1188                                         serv_printf("X-Citadel-Room: %s", ChrPtr(WC->wc_roomname));
1189                                 }
1190                         }
1191                         post_mime_to_server();
1192                         if (save_to_drafts) {
1193                                 StrBufAppendBufPlain(WCC->ImportantMsg, _("Message has been saved to Drafts.\n"), -1, 0);
1194                                 gotoroom(WCC->wc_roomname);
1195                                 display_enter();
1196                                 FreeStrBuf(&Buf);
1197                                 return;
1198                         } else if (  (havebstr("recp"))
1199                            || (havebstr("cc"  ))
1200                            || (havebstr("bcc" ))
1201                         ) {
1202                                 StrBufAppendBufPlain(WCC->ImportantMsg, _("Message has been sent.\n"), -1, 0);
1203                         }
1204                         else {
1205                                 StrBufAppendBufPlain(WCC->ImportantMsg, _("Message has been posted.\n"), -1, 0);
1206                         }
1207                         dont_post = lbstr("postseq");
1208                 } else {
1209                         StrBufCutLeft(Buf, 4);
1210
1211                         lprintf(9, "%s:%d: server post error: %s\n", __FILE__, __LINE__, ChrPtr(Buf));
1212                         StrBufAppendBuf(WCC->ImportantMsg, Buf, 0);
1213                         if (save_to_drafts) gotoroom(WCC->wc_roomname);
1214                         display_enter();
1215                         FreeStrBuf(&Buf);
1216                         return;
1217                 }
1218                 FreeStrBuf(&Buf);
1219         }
1220
1221         DeleteHash(&WCC->attachments);
1222
1223         /*
1224          *  We may have been supplied with instructions regarding the location
1225          *  to which we must return after posting.  If found, go there.
1226          */
1227         if (havebstr("return_to")) {
1228                 http_redirect(bstr("return_to"));
1229         }
1230         /*
1231          *  If we were editing a page in a wiki room, go to that page now.
1232          */
1233         else if (havebstr("wikipage")) {
1234                 snprintf(buf, sizeof buf, "wiki?page=%s", bstr("wikipage"));
1235                 http_redirect(buf);
1236         }
1237         /*
1238          *  Otherwise, just go to the "read messages" loop.
1239          */
1240         else {
1241                 readloop(readnew);
1242         }
1243 }
1244
1245
1246
1247
1248 /*
1249  * display the message entry screen
1250  */
1251 void display_enter(void)
1252 {
1253         char buf[SIZ];
1254         long now;
1255         const StrBuf *display_name = NULL;
1256         int recipient_required = 0;
1257         int subject_required = 0;
1258         int recipient_bad = 0;
1259         int is_anonymous = 0;
1260         wcsession *WCC = WC;
1261
1262         now = time(NULL);
1263
1264         if (havebstr("force_room")) {
1265                 gotoroom(sbstr("force_room"));
1266         }
1267
1268         display_name = sbstr("display_name");
1269         if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1270                 display_name = NULL;
1271                 is_anonymous = 1;
1272         }
1273
1274         /* First test to see whether this is a room that requires recipients to be entered */
1275         serv_puts("ENT0 0");
1276         serv_getln(buf, sizeof buf);
1277
1278         if (!strncmp(buf, "570", 3)) {          /* 570 means that we need a recipient here */
1279                 recipient_required = 1;
1280         }
1281         else if (buf[0] != '2') {               /* Any other error means that we cannot continue */
1282                 sprintf(WCC->ImportantMessage, "%s", &buf[4]);
1283                 readloop(readnew);
1284                 return;
1285         }
1286
1287         /* Is the server strongly recommending that the user enter a message subject? */
1288         if ((buf[3] != '\0') && (buf[4] != '\0')) {
1289                 subject_required = extract_int(&buf[4], 1);
1290         }
1291
1292         /*
1293          * Are we perhaps in an address book view?  If so, then an "enter
1294          * message" command really means "add new entry."
1295          */
1296         if (WCC->wc_default_view == VIEW_ADDRESSBOOK) {
1297                 do_edit_vcard(-1, "", NULL, NULL, "",  ChrPtr(WCC->wc_roomname));
1298                 return;
1299         }
1300
1301         /*
1302          * Are we perhaps in a calendar room?  If so, then an "enter
1303          * message" command really means "add new calendar item."
1304          */
1305         if (WCC->wc_default_view == VIEW_CALENDAR) {
1306                 display_edit_event();
1307                 return;
1308         }
1309
1310         /*
1311          * Are we perhaps in a tasks view?  If so, then an "enter
1312          * message" command really means "add new task."
1313          */
1314         if (WCC->wc_default_view == VIEW_TASKS) {
1315                 display_edit_task();
1316                 return;
1317         }
1318
1319         /*
1320          * Otherwise proceed normally.
1321          * Do a custom room banner with no navbar...
1322          */
1323
1324         if (recipient_required) {
1325                 const StrBuf *Recp = NULL;
1326                 const StrBuf *Cc = NULL;
1327                 const StrBuf *Bcc = NULL;
1328                 const StrBuf *Wikipage = NULL;
1329                 StrBuf *CmdBuf = NULL;
1330                 const char CMD[] = "ENT0 0|%s|%d|0||%s||%s|%s|%s";
1331
1332                 Recp = sbstr("recp");
1333                 Cc = sbstr("cc");
1334                 Bcc = sbstr("bcc");
1335                 Wikipage = sbstr("wikipage");
1336
1337                 CmdBuf = NewStrBufPlain(NULL,
1338                                         sizeof (CMD) +
1339                                         StrLength(Recp) +
1340                                         StrLength(display_name) +
1341                                         StrLength(Cc) +
1342                                         StrLength(Bcc) +
1343                                         StrLength(Wikipage));
1344
1345                 StrBufPrintf(CmdBuf,
1346                              CMD,
1347                              ChrPtr(Recp),
1348                              is_anonymous,
1349                              ChrPtr(display_name),
1350                              ChrPtr(Cc),
1351                              ChrPtr(Bcc),
1352                              ChrPtr(Wikipage));
1353                 serv_puts(ChrPtr(CmdBuf));
1354                 serv_getln(buf, sizeof buf);
1355                 FreeStrBuf(&CmdBuf);
1356
1357                 if (!strncmp(buf, "570", 3)) {  /* 570 means we have an invalid recipient listed */
1358                         if (havebstr("recp") &&
1359                             havebstr("cc"  ) &&
1360                             havebstr("bcc" )) {
1361                                 recipient_bad = 1;
1362                         }
1363                 }
1364                 else if (buf[0] != '2') {       /* Any other error means that we cannot continue */
1365                         wc_printf("<em>%s</em><br />\n", &buf[4]);      /* TODO -> important message */
1366                         return;
1367                 }
1368         }
1369         svputlong("RCPTREQUIRED", recipient_required);
1370         svputlong("SUBJREQUIRED", recipient_required || subject_required);
1371
1372         begin_burst();
1373         output_headers(1, 0, 0, 0, 1, 0);
1374         DoTemplate(HKEY("edit_message"), NULL, &NoCtx);
1375         end_burst();
1376
1377         return;
1378 }
1379
1380 /*
1381  * delete a message
1382  */
1383 void delete_msg(void)
1384 {
1385         long msgid;
1386         char buf[SIZ];
1387
1388         msgid = lbstr("msgid");
1389
1390         if (WC->wc_is_trash) {  /* Delete from Trash is a real delete */
1391                 serv_printf("DELE %ld", msgid);
1392         }
1393         else {                  /* Otherwise move it to Trash */
1394                 serv_printf("MOVE %ld|_TRASH_|0", msgid);
1395         }
1396
1397         serv_getln(buf, sizeof buf);
1398         sprintf(WC->ImportantMessage, "%s", &buf[4]);
1399         readloop(readnew);
1400 }
1401
1402
1403 /*
1404  * move a message to another room
1405  */
1406 void move_msg(void)
1407 {
1408         long msgid;
1409         char buf[SIZ];
1410
1411         msgid = lbstr("msgid");
1412
1413         if (havebstr("move_button")) {
1414                 sprintf(buf, "MOVE %ld|%s", msgid, bstr("target_room"));
1415                 serv_puts(buf);
1416                 serv_getln(buf, sizeof buf);
1417                 sprintf(WC->ImportantMessage, "%s", &buf[4]);
1418         } else {
1419                 sprintf(WC->ImportantMessage, (_("The message was not moved.")));
1420         }
1421
1422         readloop(readnew);
1423 }
1424
1425
1426 /*
1427  * Confirm move of a message
1428  */
1429 void confirm_move_msg(void)
1430 {
1431         long msgid;
1432         char buf[SIZ];
1433         char targ[SIZ];
1434
1435         msgid = lbstr("msgid");
1436
1437
1438         output_headers(1, 1, 2, 0, 0, 0);
1439         wc_printf("<div id=\"banner\">\n");
1440         wc_printf("<h1>");
1441         wc_printf(_("Confirm move of message"));
1442         wc_printf("</h1>");
1443         wc_printf("</div>\n");
1444
1445         wc_printf("<div id=\"content\" class=\"service\">\n");
1446
1447         wc_printf("<CENTER>");
1448
1449         wc_printf(_("Move this message to:"));
1450         wc_printf("<br />\n");
1451
1452         wc_printf("<form METHOD=\"POST\" action=\"move_msg\">\n");
1453         wc_printf("<input type=\"hidden\" name=\"nonce\" value=\"%d\">\n", WC->nonce);
1454         wc_printf("<INPUT TYPE=\"hidden\" NAME=\"msgid\" VALUE=\"%s\">\n", bstr("msgid"));
1455
1456         wc_printf("<SELECT NAME=\"target_room\" SIZE=5>\n");
1457         serv_puts("LKRA");
1458         serv_getln(buf, sizeof buf);
1459         if (buf[0] == '1') {
1460                 while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
1461                         extract_token(targ, buf, 0, '|', sizeof targ);
1462                         wc_printf("<OPTION>");
1463                         escputs(targ);
1464                         wc_printf("\n");
1465                 }
1466         }
1467         wc_printf("</SELECT>\n");
1468         wc_printf("<br />\n");
1469
1470         wc_printf("<INPUT TYPE=\"submit\" NAME=\"move_button\" VALUE=\"%s\">", _("Move"));
1471         wc_printf("&nbsp;");
1472         wc_printf("<INPUT TYPE=\"submit\" NAME=\"cancel_button\" VALUE=\"%s\">", _("Cancel"));
1473         wc_printf("</form></CENTER>\n");
1474
1475         wc_printf("</CENTER>\n");
1476         wDumpContent(1);
1477 }
1478
1479
1480 /*
1481  * Generic function to output an arbitrary MIME attachment from
1482  * message being composed
1483  *
1484  * partnum              The MIME part to be output
1485  * filename             Fake filename to give
1486  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1487  */
1488 void postpart(StrBuf *partnum, StrBuf *filename, int force_download)
1489 {
1490         void *vPart;
1491         StrBuf *content_type;
1492         wc_mime_attachment *part;
1493
1494         if (GetHash(WC->attachments, SKEY(partnum), &vPart) &&
1495             (vPart != NULL)) {
1496                 part = (wc_mime_attachment*) vPart;
1497                 if (force_download) {
1498                         content_type = NewStrBufPlain(HKEY("application/octet-stream"));
1499                 }
1500                 else {
1501                         content_type = NewStrBufDup(part->ContentType);
1502                 }
1503                 StrBufAppendBuf(WC->WBuf, part->Data, 0);
1504                 http_transmit_thing(ChrPtr(content_type), 0);
1505         } else {
1506                 hprintf("HTTP/1.1 404 %s\n", ChrPtr(partnum));
1507                 output_headers(0, 0, 0, 0, 0, 0);
1508                 hprintf("Content-Type: text/plain\r\n");
1509                 begin_burst();
1510                 wc_printf(_("An error occurred while retrieving this part: %s/%s\n"),
1511                         ChrPtr(partnum), ChrPtr(filename));
1512                 end_burst();
1513         }
1514         FreeStrBuf(&content_type);
1515 }
1516
1517
1518 /*
1519  * Generic function to output an arbitrary MIME part from an arbitrary
1520  * message number on the server.
1521  *
1522  * msgnum               Number of the item on the citadel server
1523  * partnum              The MIME part to be output
1524  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1525  */
1526 void mimepart(int force_download)
1527 {
1528         long msgnum;
1529         StrBuf *att;
1530         wcsession *WCC = WC;
1531         StrBuf *Buf;
1532         off_t bytes;
1533         StrBuf *ContentType = NewStrBufPlain(HKEY("application/octet-stream"));
1534         const char *CT;
1535
1536         att = Buf = NewStrBuf();
1537         msgnum = StrBufExtract_long(WCC->Hdr->HR.ReqLine, 0, '/');
1538         StrBufExtract_token(att, WCC->Hdr->HR.ReqLine, 1, '/');
1539
1540         serv_printf("OPNA %ld|%s", msgnum, ChrPtr(att));
1541         StrBuf_ServGetln(Buf);
1542         if (GetServerStatus(Buf, NULL) == 2) {
1543                 StrBufCutLeft(Buf, 4);
1544                 bytes = StrBufExtract_long(Buf, 0, '|');
1545                 if (!force_download) {
1546                         StrBufExtract_token(ContentType, Buf, 3, '|');
1547                 }
1548
1549                 read_server_binary(WCC->WBuf, bytes, Buf);
1550                 serv_puts("CLOS");
1551                 StrBuf_ServGetln(Buf);
1552                 CT = ChrPtr(ContentType);
1553
1554                 if (!force_download) {
1555                         if (!strcasecmp(ChrPtr(ContentType), "application/octet-stream")) {
1556                                 StrBufExtract_token(Buf, WCC->Hdr->HR.ReqLine, 2, '/');
1557                                 CT = GuessMimeByFilename(SKEY(Buf));
1558                         }
1559                         if (!strcasecmp(ChrPtr(ContentType), "application/octet-stream")) {
1560                                 CT = GuessMimeType(SKEY(WCC->WBuf));
1561                         }
1562                 }
1563                 http_transmit_thing(CT, 0);
1564         } else {
1565                 StrBufCutLeft(Buf, 4);
1566                 hprintf("HTTP/1.1 404 %s\n", ChrPtr(Buf));
1567                 output_headers(0, 0, 0, 0, 0, 0);
1568                 hprintf("Content-Type: text/plain\r\n");
1569                 begin_burst();
1570                 wc_printf(_("An error occurred while retrieving this part: %s\n"),
1571                         ChrPtr(Buf));
1572                 end_burst();
1573         }
1574         FreeStrBuf(&ContentType);
1575         FreeStrBuf(&Buf);
1576 }
1577
1578
1579 /*
1580  * Read any MIME part of a message, from the server, into memory.
1581  */
1582 StrBuf *load_mimepart(long msgnum, char *partnum)
1583 {
1584         off_t bytes;
1585         StrBuf *Buf;
1586
1587         Buf = NewStrBuf();
1588         serv_printf("DLAT %ld|%s", msgnum, partnum);
1589         StrBuf_ServGetln(Buf);
1590         if (GetServerStatus(Buf, NULL) == 6) {
1591                 StrBufCutLeft(Buf, 4);
1592                 bytes = StrBufExtract_long(Buf, 0, '|');
1593                 FreeStrBuf(&Buf);
1594                 Buf = NewStrBuf();
1595                 StrBuf_ServGetBLOBBuffered(Buf, bytes);
1596                 return(Buf);
1597         }
1598         else {
1599                 FreeStrBuf(&Buf);
1600                 return(NULL);
1601         }
1602 }
1603
1604 /*
1605  * Read any MIME part of a message, from the server, into memory.
1606  */
1607 void MimeLoadData(wc_mime_attachment *Mime)
1608 {
1609         StrBuf *Buf;
1610         off_t bytes;
1611         /* TODO: is there a chance the content type is different from the one we know? */
1612         serv_printf("DLAT %ld|%s", Mime->msgnum, ChrPtr(Mime->PartNum));
1613         Buf = NewStrBuf();
1614         StrBuf_ServGetln(Buf);
1615         if (GetServerStatus(Buf, NULL) == 6) {
1616                 bytes = extract_long(&(ChrPtr(Buf)[4]), 0);
1617
1618                 if (Mime->Data == NULL)
1619                         Mime->Data = NewStrBufPlain(NULL, bytes);
1620                 StrBuf_ServGetBLOBBuffered(Mime->Data, bytes);
1621         }
1622         else {
1623                 FlushStrBuf(Mime->Data);
1624                 /* TODO XImportant message */
1625         }
1626         FreeStrBuf(&Buf);
1627 }
1628
1629
1630
1631
1632 void view_mimepart(void) {
1633         mimepart(0);
1634 }
1635
1636 void download_mimepart(void) {
1637         mimepart(1);
1638 }
1639
1640 void view_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, 0);
1648
1649         FreeStrBuf(&filename);
1650         FreeStrBuf(&partnum);
1651 }
1652
1653 void download_postpart(void) {
1654         StrBuf *filename = NewStrBuf();
1655         StrBuf *partnum = NewStrBuf();
1656
1657         StrBufExtract_token(partnum, WC->Hdr->HR.ReqLine, 0, '/');
1658         StrBufExtract_token(filename, WC->Hdr->HR.ReqLine, 1, '/');
1659
1660         postpart(partnum, filename, 1);
1661
1662         FreeStrBuf(&filename);
1663         FreeStrBuf(&partnum);
1664 }
1665
1666 void h_readnew(void) { readloop(readnew);}
1667 void h_readold(void) { readloop(readold);}
1668 void h_readfwd(void) { readloop(readfwd);}
1669 void h_headers(void) { readloop(headers);}
1670 void h_do_search(void) { readloop(do_search);}
1671 void h_readgt(void) { readloop(readgt);}
1672
1673 void jsonMessageListHdr(void)
1674 {
1675         /* TODO: make a generic function */
1676         hprintf("HTTP/1.1 200 OK\r\n");
1677         hprintf("Content-type: application/json; charset=utf-8\r\n");
1678         hprintf("Server: %s / %s\r\n", PACKAGE_STRING, ChrPtr(WC->serv_info->serv_software));
1679         hprintf("Connection: close\r\n");
1680         hprintf("Pragma: no-cache\r\nCache-Control: no-store\r\nExpires:-1\r\n");
1681         begin_burst();
1682 }
1683
1684
1685 /* Output message list in JSON format */
1686 void jsonMessageList(void) {
1687         const StrBuf *room = sbstr("room");
1688         long oper = (havebstr("query")) ? do_search : readnew;
1689         WC->is_ajax = 1;
1690         gotoroom(room);
1691         readloop(oper);
1692         WC->is_ajax = 0;
1693 }
1694
1695 void RegisterReadLoopHandlerset(
1696         int RoomType,
1697         GetParamsGetServerCall_func GetParamsGetServerCall,
1698         PrintViewHeader_func PrintViewHeader,
1699         LoadMsgFromServer_func LoadMsgFromServer,
1700         RenderView_or_Tail_func RenderView_or_Tail,
1701         View_Cleanup_func ViewCleanup
1702         )
1703 {
1704         RoomRenderer *Handler;
1705
1706         Handler = (RoomRenderer*) malloc(sizeof(RoomRenderer));
1707
1708         Handler->RoomType = RoomType;
1709         Handler->GetParamsGetServerCall = GetParamsGetServerCall;
1710         Handler->PrintViewHeader = PrintViewHeader;
1711         Handler->LoadMsgFromServer = LoadMsgFromServer;
1712         Handler->RenderView_or_Tail = RenderView_or_Tail;
1713         Handler->ViewCleanup = ViewCleanup;
1714
1715         Put(ReadLoopHandler, IKEY(RoomType), Handler, NULL);
1716 }
1717
1718 void
1719 InitModule_MSG
1720 (void)
1721 {
1722         RegisterPreference("use_sig",
1723                            _("Attach signature to email messages?"),
1724                            PRF_YESNO,
1725                            NULL);
1726         RegisterPreference("signature", _("Use this signature:"), PRF_QP_STRING, NULL);
1727         RegisterPreference("default_header_charset",
1728                            _("Default character set for email headers:"),
1729                            PRF_STRING,
1730                            NULL);
1731         RegisterPreference("defaultfrom", _("Preferred email address"), PRF_STRING, NULL);
1732         RegisterPreference("defaultname",
1733                            _("Preferred display name for email messages"),
1734                            PRF_STRING,
1735                            NULL);
1736         RegisterPreference("defaulthandle",
1737                            _("Preferred display name for bulletin board posts"),
1738                            PRF_STRING,
1739                            NULL);
1740         RegisterPreference("mailbox",_("Mailbox view mode"), PRF_STRING, NULL);
1741
1742         WebcitAddUrlHandler(HKEY("readnew"), "", 0, h_readnew, NEED_URL);
1743         WebcitAddUrlHandler(HKEY("readold"), "", 0, h_readold, NEED_URL);
1744         WebcitAddUrlHandler(HKEY("readfwd"), "", 0, h_readfwd, NEED_URL);
1745         WebcitAddUrlHandler(HKEY("headers"), "", 0, h_headers, NEED_URL);
1746         WebcitAddUrlHandler(HKEY("readgt"), "", 0, h_readgt, NEED_URL);
1747         WebcitAddUrlHandler(HKEY("do_search"), "", 0, h_do_search, 0);
1748         WebcitAddUrlHandler(HKEY("display_enter"), "", 0, display_enter, 0);
1749         WebcitAddUrlHandler(HKEY("post"), "", 0, post_message, 0);
1750         WebcitAddUrlHandler(HKEY("move_msg"), "", 0, move_msg, 0);
1751         WebcitAddUrlHandler(HKEY("delete_msg"), "", 0, delete_msg, 0);
1752         WebcitAddUrlHandler(HKEY("confirm_move_msg"), "", 0, confirm_move_msg, 0);
1753         WebcitAddUrlHandler(HKEY("msg"), "", 0, embed_message, NEED_URL);
1754         WebcitAddUrlHandler(HKEY("message"), "", 0, handle_one_message, NEED_URL|XHTTP_COMMANDS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
1755         WebcitAddUrlHandler(HKEY("printmsg"), "", 0, print_message, NEED_URL);
1756         WebcitAddUrlHandler(HKEY("mobilemsg"), "", 0, mobile_message_view, NEED_URL);
1757         WebcitAddUrlHandler(HKEY("msgheaders"), "", 0, display_headers, NEED_URL);
1758
1759         WebcitAddUrlHandler(HKEY("mimepart"), "", 0, view_mimepart, NEED_URL);
1760         WebcitAddUrlHandler(HKEY("mimepart_download"), "", 0, download_mimepart, NEED_URL);
1761         WebcitAddUrlHandler(HKEY("postpart"), "", 0, view_postpart, NEED_URL);
1762         WebcitAddUrlHandler(HKEY("postpart_download"), "", 0, download_postpart, NEED_URL);
1763
1764         /* json */
1765         WebcitAddUrlHandler(HKEY("roommsgs"), "", 0, jsonMessageList,0);
1766         return ;
1767 }
1768
1769 void
1770 SessionDetachModule_MSG
1771 (wcsession *sess)
1772 {
1773         DeleteHash(&sess->summ);
1774 }