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 int dbg_analyze_msg = 0;
  16
  17 #define SUBJ_COL_WIDTH_PCT              50      /**< Mailbox view column width */
  18 #define SENDER_COL_WIDTH_PCT            30      /**< Mailbox view column width */
  19 #define DATE_PLUS_BUTTONS_WIDTH_PCT     20      /**< Mailbox view column width */
  20
  21 void jsonMessageListHdr(void);
  22
  23 void display_enter(void);
  24
  25 /*----------------------------------------------------------------------------*/
  26
  27
  28 typedef void (*MsgPartEvaluatorFunc)(message_summary *Sum, StrBuf *Buf);
  29
  30 typedef struct _MsgPartEvaluatorStruct {
  31         MsgPartEvaluatorFunc f;
  32 }MsgPartEvaluatorStruct;
  33
  34
  35 /*----------------------------------------------------------------------------*/
  36
  37
  38 int load_message(message_summary *Msg,
  39                  StrBuf *FoundCharset,
  40                  StrBuf **Error)
  41 {
  42         wcsession *WCC = WC;
  43         StrBuf *Buf;
  44         StrBuf *HdrToken;
  45         headereval *Hdr;
  46         void *vHdr;
  47         char buf[SIZ];
  48         int Done = 0;
  49         int state=0;
  50
  51         Buf = NewStrBuf();
  52         lprintf(1, "-------------------MSG4 %ld|%s--------------\n", Msg->msgnum, ChrPtr(Msg->PartNum));
  53         if (Msg->PartNum != NULL)
  54                 serv_printf("MSG4 %ld|%s", Msg->msgnum, ChrPtr(Msg->PartNum));
  55         else
  56                 serv_printf("MSG4 %ld", Msg->msgnum);
  57
  58         StrBuf_ServGetln(Buf);
  59         if (GetServerStatus(Buf, NULL) != 1) {
  60                 *Error = NewStrBuf();
  61                 StrBufAppendPrintf(*Error, "<strong>");
  62                 StrBufAppendPrintf(*Error, _("ERROR:"));
  63                 StrBufAppendPrintf(*Error, "</strong> %s<br />\n", &buf[4]);
  64                 FreeStrBuf(&Buf);
  65                 return 0;
  66         }
  67
  68         /** begin everythingamundo table */
  69         HdrToken = NewStrBuf();
  70         while ((StrBuf_ServGetln(Buf)>=0) && !Done) {
  71                 if ( (StrLength(Buf)==3) &&
  72                     !strcmp(ChrPtr(Buf), "000"))
  73                 {
  74                         Done = 1;
  75                         if (state < 2) {
  76                                 lprintf(1, _("unexpected end of message"));
  77                                 if (Msg->MsgBody->Data == NULL)
  78                                         Msg->MsgBody->Data = NewStrBuf();
  79                                 Msg->MsgBody->ContentType = NewStrBufPlain(HKEY("text/html"));
  80                                 StrBufAppendPrintf(Msg->MsgBody->Data, "<div><i>");
  81                                 StrBufAppendPrintf(Msg->MsgBody->Data, _("unexpected end of message"));
  82                                 StrBufAppendPrintf(Msg->MsgBody->Data, " (1)</i><br /><br />\n");
  83                                 StrBufAppendPrintf(Msg->MsgBody->Data, "</div>\n");
  84                         }
  85                         break;
  86                 }
  87                 switch (state) {
  88                 case 0:/* Citadel Message Headers */
  89                         if (StrLength(Buf) == 0) {
  90                                 state ++;
  91                                 break;
  92                         }
  93                         StrBufExtract_token(HdrToken, Buf, 0, '=');
  94                         StrBufCutLeft(Buf, StrLength(HdrToken) + 1);
  95
  96 #ifdef TECH_PREVIEW
  97                         if (dbg_analyze_msg) lprintf(1, ":: [%s] = [%s]\n", ChrPtr(HdrToken), ChrPtr(Buf));
  98 #endif
  99                         /* look up one of the examine_* functions to parse the content */
 100                         if (GetHash(MsgHeaderHandler, SKEY(HdrToken), &vHdr) &&
 101                             (vHdr != NULL)) {
 102                                 Hdr = (headereval*)vHdr;
 103                                 Hdr->evaluator(Msg, Buf, FoundCharset);
 104                                 if (Hdr->Type == 1) {
 105                                         state++;
 106                                 }
 107                         }/* TODO:
 108                         else LogError(Target,
 109                                       __FUNCTION__,
 110                                       "don't know how to handle message header[%s]\n",
 111                                       ChrPtr(HdrToken));
 112                          */
 113                         break;
 114                 case 1:/* Message Mime Header */
 115                         if (StrLength(Buf) == 0) {
 116                                 state++;
 117                                 if (Msg->MsgBody->ContentType == NULL)
 118                                         /* end of header or no header? */
 119                                         Msg->MsgBody->ContentType = NewStrBufPlain(HKEY("text/plain"));
 120                                  /* usual end of mime header */
 121                         }
 122                         else
 123                         {
 124                                 StrBufExtract_token(HdrToken, Buf, 0, ':');
 125                                 if (StrLength(HdrToken) > 0) {
 126                                         StrBufCutLeft(Buf, StrLength(HdrToken) + 1);
 127 #ifdef TECH_PREVIEW
 128                                         if (dbg_analyze_msg) lprintf(1, ":: [%s] = [%s]\n", ChrPtr(HdrToken), ChrPtr(Buf));
 129 #endif
 130                                         /* the examine*'s know how to do with mime headers too... */
 131                                         if (GetHash(MsgHeaderHandler, SKEY(HdrToken), &vHdr) &&
 132                                             (vHdr != NULL)) {
 133                                                 Hdr = (headereval*)vHdr;
 134                                                 Hdr->evaluator(Msg, Buf, FoundCharset);
 135                                         }
 136                                         break;
 137                                 }
 138                         }
 139                 case 2: /* Message Body */
 140
 141                         if (Msg->MsgBody->size_known > 0) {
 142                                 StrBuf_ServGetBLOBBuffered(Msg->MsgBody->Data, Msg->MsgBody->length);
 143                                 state ++;
 144                                 /*/ todo: check next line, if not 000, append following lines */
 145                         }
 146                         else if (1){
 147                                 if (StrLength(Msg->MsgBody->Data) > 0)
 148                                         StrBufAppendBufPlain(Msg->MsgBody->Data, "\n", 1, 0);
 149                                 StrBufAppendBuf(Msg->MsgBody->Data, Buf, 0);
 150                         }
 151                         break;
 152                 case 3:
 153                         StrBufAppendBuf(Msg->MsgBody->Data, Buf, 0);
 154                         break;
 155                 }
 156         }
 157
 158         if (Msg->AllAttach == NULL)
 159                 Msg->AllAttach = NewHash(1,NULL);
 160         /* now we put the body mimepart we read above into the mimelist */
 161         Put(Msg->AllAttach, SKEY(Msg->MsgBody->PartNum), Msg->MsgBody, DestroyMime);
 162
 163         /* Generate a reply-to address */
 164         if (StrLength(Msg->Rfca) > 0) {
 165                 if (Msg->reply_to == NULL)
 166                         Msg->reply_to = NewStrBuf();
 167                 if (StrLength(Msg->from) > 0) {
 168                         StrBufPrintf(Msg->reply_to, "%s <%s>", ChrPtr(Msg->from), ChrPtr(Msg->Rfca));
 169                 }
 170                 else {
 171                         FlushStrBuf(Msg->reply_to);
 172                         StrBufAppendBuf(Msg->reply_to, Msg->Rfca, 0);
 173                 }
 174         }
 175         else
 176         {
 177                 if ((StrLength(Msg->OtherNode)>0) &&
 178                     (strcasecmp(ChrPtr(Msg->OtherNode), ChrPtr(WCC->serv_info->serv_nodename))) &&
 179                     (strcasecmp(ChrPtr(Msg->OtherNode), ChrPtr(WCC->serv_info->serv_humannode)) ))
 180                 {
 181                         if (Msg->reply_to == NULL)
 182                                 Msg->reply_to = NewStrBuf();
 183                         StrBufPrintf(Msg->reply_to,
 184                                      "%s @ %s",
 185                                      ChrPtr(Msg->from),
 186                                      ChrPtr(Msg->OtherNode));
 187                 }
 188                 else {
 189                         if (Msg->reply_to == NULL)
 190                                 Msg->reply_to = NewStrBuf();
 191                         FlushStrBuf(Msg->reply_to);
 192                         StrBufAppendBuf(Msg->reply_to, Msg->from, 0);
 193                 }
 194         }
 195         FreeStrBuf(&Buf);
 196         FreeStrBuf(&HdrToken);
 197         return 1;
 198 }
 199
 200
 201
 202 /*
 203  * I wanna SEE that message!
 204  *
 205  * msgnum               Message number to display
 206  * printable_view       Nonzero to display a printable view
 207  * section              Optional for encapsulated message/rfc822 submessage
 208  */
 209 int read_message(StrBuf *Target, const char *tmpl, long tmpllen, long msgnum, const StrBuf *PartNum, const StrBuf **OutMime)
 210 {
 211         StrBuf *Buf;
 212         StrBuf *FoundCharset;
 213         HashPos  *it;
 214         void *vMime;
 215         message_summary *Msg = NULL;
 216         void *vHdr;
 217         long len;
 218         const char *Key;
 219         WCTemplputParams SubTP;
 220         StrBuf *Error = NULL;
 221
 222         Buf = NewStrBuf();
 223         FoundCharset = NewStrBuf();
 224         Msg = (message_summary *)malloc(sizeof(message_summary));
 225         memset(Msg, 0, sizeof(message_summary));
 226         Msg->msgnum = msgnum;
 227         Msg->PartNum = PartNum;
 228         Msg->MsgBody =  (wc_mime_attachment*) malloc(sizeof(wc_mime_attachment));
 229         memset(Msg->MsgBody, 0, sizeof(wc_mime_attachment));
 230         Msg->MsgBody->msgnum = msgnum;
 231
 232         if (!load_message(Msg, FoundCharset, &Error)) {
 233                 StrBufAppendBuf(Target, Error, 0);
 234                 FreeStrBuf(&Error);
 235         }
 236
 237         /* strip the bare contenttype, so we ommit charset etc. */
 238         StrBufExtract_token(Buf, Msg->MsgBody->ContentType, 0, ';');
 239         StrBufTrim(Buf);
 240         /* look up the renderer, that will convert this mimeitem into the htmlized form */
 241         if (GetHash(MimeRenderHandler, SKEY(Buf), &vHdr) &&
 242             (vHdr != NULL)) {
 243                 RenderMimeFuncStruct *Render;
 244                 Render = (RenderMimeFuncStruct*)vHdr;
 245                 Render->f(Msg->MsgBody, NULL, FoundCharset);
 246         }
 247
 248         if (StrLength(Msg->reply_references)> 0) {
 249                 /* Trim down excessively long lists of thread references.  We eliminate the
 250                  * second one in the list so that the thread root remains intact.
 251                  */
 252                 int rrtok = num_tokens(ChrPtr(Msg->reply_references), '|');
 253                 int rrlen = StrLength(Msg->reply_references);
 254                 if ( ((rrtok >= 3) && (rrlen > 900)) || (rrtok > 10) ) {
 255                         StrBufRemove_token(Msg->reply_references, 1, '|');
 256                 }
 257         }
 258
 259         /* now check if we need to translate some mimeparts, and remove the duplicate */
 260         it = GetNewHashPos(Msg->AllAttach, 0);
 261         while (GetNextHashPos(Msg->AllAttach, it, &len, &Key, &vMime) &&
 262                (vMime != NULL)) {
 263                 wc_mime_attachment *Mime = (wc_mime_attachment*) vMime;
 264                 evaluate_mime_part(Msg, Mime);
 265         }
 266         DeleteHashPos(&it);
 267         memset(&SubTP, 0, sizeof(WCTemplputParams));
 268         SubTP.Filter.ContextType = CTX_MAILSUM;
 269         SubTP.Context = Msg;
 270         *OutMime = DoTemplate(tmpl, tmpllen, Target, &SubTP);
 271
 272         DestroyMessageSummary(Msg);
 273         FreeStrBuf(&FoundCharset);
 274         FreeStrBuf(&Buf);
 275         return 1;
 276 }
 277
 278
 279
 280
 281
 282
 283 /*
 284  * Unadorned HTML output of an individual message, suitable
 285  * for placing in a hidden iframe, for printing, or whatever
 286  *
 287  * msgnum_as_string == Message number, as a string instead of as a long int
 288  */
 289 void embed_message(void) {
 290         const StrBuf *Mime;
 291         long msgnum = 0L;
 292         wcsession *WCC = WC;
 293         const StrBuf *Tmpl;
 294         StrBuf *CmdBuf = NULL;
 295
 296         msgnum = StrTol(WCC->UrlFragment2);
 297         switch (WCC->eReqType)
 298         {
 299         case eGET:
 300         case ePOST:
 301                 Tmpl = sbstr("template");
 302                 if (StrLength(Tmpl) > 0)
 303                         read_message(WCC->WBuf, SKEY(Tmpl), msgnum, NULL, &Mime);
 304                 else
 305                         read_message(WCC->WBuf, HKEY("view_message"), msgnum, NULL, &Mime);
 306                 http_transmit_thing(ChrPtr(Mime), 0);
 307                 break;
 308         case eDELETE:
 309                 CmdBuf = NewStrBuf ();
 310                 if (WCC->wc_is_trash) { /** Delete from Trash is a real delete */
 311                         serv_printf("DELE %ld", msgnum);
 312                 }
 313                 else {                  /** Otherwise move it to Trash */
 314                         serv_printf("MOVE %ld|_TRASH_|0", msgnum);
 315                 }
 316                 StrBuf_ServGetln(CmdBuf);
 317                 FlushStrBuf(WCC->ImportantMsg);
 318                 StrBufAppendBuf(WCC->ImportantMsg, CmdBuf, 4);
 319                 break;
 320         default:
 321                 break;
 322
 323         }
 324 }
 325
 326
 327 /*
 328  * Printable view of a message
 329  *
 330  * msgnum_as_string == Message number, as a string instead of as a long int
 331  */
 332 void print_message(void) {
 333         long msgnum = 0L;
 334         const StrBuf *Mime;
 335
 336         msgnum = StrTol(WC->UrlFragment2);
 337         output_headers(0, 0, 0, 0, 0, 0);
 338
 339         hprintf("Content-type: text/html\r\n"
 340                 "Server: " PACKAGE_STRING "\r\n"
 341                 "Connection: close\r\n");
 342
 343         begin_burst();
 344
 345         read_message(WC->WBuf, HKEY("view_message_print"), msgnum, NULL, &Mime);
 346
 347         wDumpContent(0);
 348 }
 349
 350 /*
 351  * Mobile browser view of message
 352  *
 353  * @param msg_num_as_string Message number as a string instead of as a long int
 354  */
 355 void mobile_message_view(void)
 356 {
 357         long msgnum = 0L;
 358         const StrBuf *Mime;
 359
 360         msgnum = StrTol(WC->UrlFragment2);
 361         output_headers(1, 0, 0, 0, 0, 1);
 362         begin_burst();
 363         do_template("msgcontrols", NULL);
 364         read_message(WC->WBuf, HKEY("view_message"), msgnum, NULL, &Mime);
 365         wDumpContent(0);
 366 }
 367
 368 /**
 369  * \brief Display a message's headers
 370  *
 371  * \param msgnum_as_string Message number, as a string instead of as a long int
 372  */
 373 void display_headers(void) {
 374         long msgnum = 0L;
 375         char buf[1024];
 376
 377         msgnum = StrTol(WC->UrlFragment2);
 378         output_headers(0, 0, 0, 0, 0, 0);
 379
 380         hprintf("Content-type: text/plain\r\n"
 381                 "Server: %s\r\n"
 382                 "Connection: close\r\n",
 383                 PACKAGE_STRING);
 384         begin_burst();
 385
 386         serv_printf("MSG2 %ld|3", msgnum);
 387         serv_getln(buf, sizeof buf);
 388         if (buf[0] == '1') {
 389                 while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 390                         wprintf("%s\n", buf);
 391                 }
 392         }
 393
 394         wDumpContent(0);
 395 }
 396
 397
 398 message_summary *ReadOneMessageSummary(StrBuf *RawMessage, const char *DefaultSubject, long MsgNum)
 399 {
 400         void                 *vEval;
 401         MsgPartEvaluatorStruct  *Eval;
 402         message_summary      *Msg;
 403         StrBuf *Buf;
 404         const char *buf;
 405         const char *ebuf;
 406         int nBuf;
 407         long len;
 408
 409         Buf = NewStrBuf();
 410
 411         serv_printf("MSG0 %ld|1", MsgNum);      /* ask for headers only */
 412
 413         StrBuf_ServGetln(Buf);
 414         if (GetServerStatus(Buf, NULL) == 1) {
 415                 FreeStrBuf(&Buf);
 416                 return NULL;
 417         }
 418
 419         Msg = (message_summary*)malloc(sizeof(message_summary));
 420         memset(Msg, 0, sizeof(message_summary));
 421         while (len = StrBuf_ServGetln(Buf),
 422                ((len != 3)  ||
 423                 strcmp(ChrPtr(Buf), "000")== 0)){
 424                 buf = ChrPtr(Buf);
 425                 ebuf = strchr(ChrPtr(Buf), '=');
 426                 nBuf = ebuf - buf;
 427                 if (GetHash(MsgEvaluators, buf, nBuf, &vEval) && vEval != NULL) {
 428                         Eval = (MsgPartEvaluatorStruct*) vEval;
 429                         StrBufCutLeft(Buf, nBuf + 1);
 430                         Eval->f(Msg, Buf);
 431                 }
 432                 else lprintf(1, "Don't know how to handle Message Headerline [%s]", ChrPtr(Buf));
 433         }
 434         return Msg;
 435 }
 436
 437
 438
 439
 440
 441 /*
 442  * load message pointers from the server for a "read messages" operation
 443  *
 444  * servcmd:             the citadel command to send to the citserver
 445  * with_headers:        also include some of the headers with the message numbers (more expensive)
 446  */
 447 int load_msg_ptrs(const char *servcmd, int with_headers)
 448 {
 449         StrBuf* FoundCharset = NULL;
 450         wcsession *WCC = WC;
 451         message_summary *Msg;
 452         StrBuf *Buf, *Buf2;
 453         int nummsgs = 0;
 454         int maxload = 0;
 455         long len;
 456         int n;
 457         int skipit;
 458         const char *Ptr = NULL;
 459
 460         if (WCC->summ != NULL) {
 461                 DeleteHash(&WCC->summ);
 462         }
 463         WCC->summ = NewHash(1, Flathash);
 464         maxload = 10000;
 465
 466         Buf = NewStrBuf();
 467         serv_puts(servcmd);
 468         StrBuf_ServGetln(Buf);
 469         if (GetServerStatus(Buf, NULL) != 1) {
 470                 FreeStrBuf(&Buf);
 471                 return (nummsgs);
 472         }
 473         Buf2 = NewStrBuf();
 474         while (len = StrBuf_ServGetln(Buf),
 475                ((len != 3)  ||
 476                 strcmp(ChrPtr(Buf), "000")!= 0))
 477         {
 478                 if (nummsgs < maxload) {
 479                         skipit = 0;
 480                         Ptr = NULL;
 481                         Msg = (message_summary*)malloc(sizeof(message_summary));
 482                         memset(Msg, 0, sizeof(message_summary));
 483
 484                         Msg->msgnum = StrBufExtractNext_long(Buf, &Ptr, '|');
 485                         Msg->date = StrBufExtractNext_long(Buf, &Ptr, '|');
 486                         /*
 487                          * as citserver probably gives us messages in forward date sorting
 488                          * nummsgs should be the same order as the message date.
 489                          */
 490                         if (Msg->date == 0) {
 491                                 Msg->date = nummsgs;
 492                                 if (StrLength(Buf) < 32)
 493                                         skipit = 1;
 494                         }
 495                         if (!skipit) {
 496                                 Msg->from = NewStrBufPlain(NULL, StrLength(Buf));
 497                                 StrBufExtract_NextToken(Buf2, Buf, &Ptr, '|');
 498                                 if (StrLength(Buf2) != 0) {
 499                                         /** Handle senders with RFC2047 encoding */
 500                                         StrBuf_RFC822_to_Utf8(Msg->from, Buf2, WCC->DefaultCharset, FoundCharset);
 501                                 }
 502
 503                                 /** Nodename */
 504                                 StrBufExtract_NextToken(Buf2, Buf, &Ptr, '|');
 505                                 if ((StrLength(Buf2) !=0 ) &&
 506                                     ( ((WCC->room_flags & QR_NETWORK)
 507                                        || ((strcasecmp(ChrPtr(Buf2), ChrPtr(WCC->serv_info->serv_nodename))
 508                                             && (strcasecmp(ChrPtr(Buf2), ChrPtr(WCC->serv_info->serv_fqdn))))))))
 509                                 {
 510                                         StrBufAppendBufPlain(Msg->from, HKEY(" @ "), 0);
 511                                         StrBufAppendBuf(Msg->from, Buf2, 0);
 512                                 }
 513
 514                                 /** Not used:
 515                                     StrBufExtract_token(Msg->inetaddr, Buf, 4, '|');
 516                                 */
 517                                 StrBufSkip_NTokenS(Buf, &Ptr, '|', 1);
 518                                 Msg->subj = NewStrBufPlain(NULL, StrLength(Buf));
 519                                 StrBufExtract_NextToken(Buf2,  Buf, &Ptr, '|');
 520                                 if (StrLength(Buf2) == 0)
 521                                         StrBufAppendBufPlain(Msg->subj, _("(no subject)"), -1,0);
 522                                 else {
 523                                         StrBuf_RFC822_to_Utf8(Msg->subj, Buf2, WCC->DefaultCharset, FoundCharset);
 524                                         if ((StrLength(Msg->subj) > 75) &&
 525                                             (StrBuf_Utf8StrLen(Msg->subj) > 75)) {
 526                                                 StrBuf_Utf8StrCut(Msg->subj, 72);
 527                                                 StrBufAppendBufPlain(Msg->subj, HKEY("..."), 0);
 528                                         }
 529                                 }
 530
 531
 532                                 if ((StrLength(Msg->from) > 25) &&
 533                                     (StrBuf_Utf8StrLen(Msg->from) > 25)) {
 534                                         StrBuf_Utf8StrCut(Msg->from, 23);
 535                                         StrBufAppendBufPlain(Msg->from, HKEY("..."), 0);
 536                                 }
 537                         }
 538                         n = Msg->msgnum;
 539                         Put(WCC->summ, (const char *)&n, sizeof(n), Msg, DestroyMessageSummary);
 540                 }
 541                 nummsgs++;
 542         }
 543         FreeStrBuf(&Buf2);
 544         FreeStrBuf(&Buf);
 545         return (nummsgs);
 546 }
 547
 548
 549 inline message_summary* GetMessagePtrAt(int n, HashList *Summ)
 550 {
 551         const char *Key;
 552         long HKLen;
 553         void *vMsg;
 554
 555         if (Summ == NULL)
 556                 return NULL;
 557         GetHashAt(Summ, n, &HKLen, &Key, &vMsg);
 558         return (message_summary*) vMsg;
 559 }
 560
 561
 562 long DrawMessageDropdown(StrBuf *Selector, long maxmsgs, long startmsg, int nMessages)
 563 {
 564         StrBuf *TmpBuf;
 565         wcsession *WCC = WC;
 566         void *vMsg;
 567         int lo, hi;
 568         long ret;
 569         long hklen;
 570         const char *key;
 571         int done = 0;
 572         int nItems;
 573         HashPos *At;
 574         long vector[16];
 575         WCTemplputParams SubTP;
 576
 577         memset(&SubTP, 0, sizeof(WCTemplputParams));
 578         SubTP.Filter.ContextType = CTX_LONGVECTOR;
 579         SubTP.Context = &vector;
 580         TmpBuf = NewStrBuf();
 581         At = GetNewHashPos(WCC->summ, nMessages);
 582         nItems = GetCount(WCC->summ);
 583         ret = nMessages;
 584         vector[0] = 7;
 585         vector[2] = 1;
 586         vector[1] = startmsg;
 587         vector[3] = 0;
 588
 589         while (!done) {
 590                 vector[3] = abs(nMessages);
 591                 lo = GetHashPosCounter(At);
 592                 if (nMessages > 0) {
 593                         if (lo + nMessages >= nItems) {
 594                                 hi = nItems - 1;
 595                                 vector[3] = nItems - lo;
 596                                 if (startmsg == lo)
 597                                         ret = vector[3];
 598                         }
 599                         else {
 600                                 hi = lo + nMessages - 1;
 601                         }
 602                 } else {
 603                         if (lo + nMessages < -1) {
 604                                 hi = 0;
 605                         }
 606                         else {
 607                                 if ((lo % abs(nMessages)) != 0) {
 608                                         int offset = (lo % abs(nMessages) *
 609                                                       (nMessages / abs(nMessages)));
 610                                         hi = lo + offset;
 611                                         vector[3] = abs(offset);
 612                                         if (startmsg == lo)
 613                                                  ret = offset;
 614                                 }
 615                                 else
 616                                         hi = lo + nMessages;
 617                         }
 618                 }
 619                 done = !GetNextHashPos(WCC->summ, At, &hklen, &key, &vMsg);
 620
 621                 /**
 622                  * Bump these because although we're thinking in zero base, the user
 623                  * is a drooling idiot and is thinking in one base.
 624                  */
 625                 vector[4] = lo + 1;
 626                 vector[5] = hi + 1;
 627                 vector[6] = lo;
 628                 FlushStrBuf(TmpBuf);
 629                 dbg_print_longvector(vector);
 630                 DoTemplate(HKEY("select_messageindex"), TmpBuf, &SubTP);
 631                 StrBufAppendBuf(Selector, TmpBuf, 0);
 632         }
 633         vector[6] = 0;
 634         FlushStrBuf(TmpBuf);
 635         if (maxmsgs == 9999999) {
 636                 vector[1] = 1;
 637                 ret = maxmsgs;
 638         }
 639         else
 640                 vector[1] = 0;
 641         vector[2] = 0;
 642         dbg_print_longvector(vector);
 643         DoTemplate(HKEY("select_messageindex_all"), TmpBuf, &SubTP);
 644         StrBufAppendBuf(Selector, TmpBuf, 0);
 645         FreeStrBuf(&TmpBuf);
 646         DeleteHashPos(&At);
 647         return ret;
 648 }
 649
 650 void load_seen_flags(void)
 651 {
 652         message_summary *Msg;
 653         const char *HashKey;
 654         long HKLen;
 655         HashPos *at;
 656         void *vMsg;
 657         StrBuf *OldMsg;
 658         wcsession *WCC = WC;
 659
 660         OldMsg = NewStrBuf();
 661         serv_puts("GTSN");
 662         StrBuf_ServGetln(OldMsg);
 663         if (GetServerStatus(OldMsg, NULL) == 2) {
 664                 StrBufCutLeft(OldMsg, 4);
 665         }
 666         else {
 667                 FreeStrBuf(&OldMsg);
 668                 return;
 669         }
 670         at = GetNewHashPos(WCC->summ, 0);
 671         while (GetNextHashPos(WCC->summ, at, &HKLen, &HashKey, &vMsg)) {
 672                 /** Are you a new message, or an old message? */
 673                 Msg = (message_summary*) vMsg;
 674                 if (is_msg_in_mset(ChrPtr(OldMsg), Msg->msgnum)) {
 675                         Msg->is_new = 0;
 676                 }
 677                 else {
 678                         Msg->is_new = 1;
 679                 }
 680         }
 681         FreeStrBuf(&OldMsg);
 682         DeleteHashPos(&at);
 683 }
 684
 685 extern readloop_struct rlid[];
 686
 687 /*
 688  * command loop for reading messages
 689  *
 690  * Set oper to "readnew" or "readold" or "readfwd" or "headers"
 691  */
 692 void readloop(long oper)
 693 {
 694         StrBuf *MessageDropdown = NULL;
 695         StrBuf *BBViewToolBar = NULL;
 696         void *vMsg;
 697         message_summary *Msg;
 698         char cmd[256] = "";
 699         char buf[SIZ];
 700         int a = 0;
 701         int with_headers = 0;
 702         int nummsgs;
 703         long startmsg = 0;
 704         int maxmsgs = 0;
 705         long *displayed_msgs = NULL;
 706         int num_displayed = 0;
 707         int is_singlecard = 0;
 708         struct calview calv;
 709         int i;
 710         int lowest_displayed = (-1);
 711         int highest_displayed = 0;
 712         addrbookent *addrbook = NULL;
 713         int num_ab = 0;
 714         int bbs_reverse = 0;
 715         wcsession *WCC = WC;
 716         HashPos *at;
 717         const char *HashKey;
 718         long HKLen;
 719         int care_for_empty_list = 0;
 720         int load_seen = 0;
 721         int sortit = 0;
 722         int defaultsortorder = 0;
 723         WCTemplputParams SubTP;
 724         char *ab_name;
 725         const StrBuf *Mime;
 726
 727         if (havebstr("is_summary") && (1 == (ibstr("is_summary"))))
 728                 WCC->wc_view = VIEW_MAILBOX;
 729
 730         if (!WCC->is_ajax) {
 731         output_headers(1, 1, 1, 0, 0, 0);
 732         } else if (WCC->wc_view == VIEW_MAILBOX) {
 733           jsonMessageListHdr();
 734         }
 735
 736         switch (WCC->wc_view) {
 737         case VIEW_WIKI:
 738                 sprintf(buf, "wiki?room=%s&page=home", ChrPtr(WCC->wc_roomname));
 739                 http_redirect(buf);
 740                 return;
 741         case VIEW_CALBRIEF:
 742         case VIEW_CALENDAR:
 743                 load_seen = 1;
 744                 strcpy(cmd, "MSGS ALL");
 745                 maxmsgs = 32767;
 746                 parse_calendar_view_request(&calv);
 747                 break;
 748         case VIEW_TASKS:
 749                 strcpy(cmd, "MSGS ALL");
 750                 maxmsgs = 32767;
 751                 break;
 752         case VIEW_NOTES:
 753                 strcpy(cmd, "MSGS ALL");
 754                 maxmsgs = 32767;
 755                 wprintf("<div id=\"new_notes_here\"></div>\n");
 756                 break;
 757         case VIEW_ADDRESSBOOK:
 758                 is_singlecard = ibstr("is_singlecard");
 759                 if (is_singlecard != 1) {
 760                         if (oper == do_search) {
 761                                 snprintf(cmd, sizeof(cmd), "MSGS SEARCH|%s", bstr("query"));
 762                         }
 763                         else {
 764                                 strcpy(cmd, "MSGS ALL");
 765                         }
 766                         maxmsgs = 9999999;
 767                         break;
 768                 }
 769                 break;
 770         case VIEW_MAILBOX:
 771           if (!WCC->is_ajax) {
 772             new_summary_view();
 773             return;
 774           } else {
 775                 defaultsortorder = 2;
 776                 sortit = 1;
 777                 load_seen = 1;
 778                 care_for_empty_list = 0;
 779                 with_headers = 1;
 780                 /* Generally using maxmsgs|startmsg is not required
 781                    in mailbox view, but we have a 'safemode' for clients
 782                    (*cough* Exploder) that simply can't handle too many */
 783                 if (havebstr("maxmsgs")) maxmsgs = ibstr("maxmsgs");
 784                 else maxmsgs = 9999999;
 785                 if (havebstr("startmsg")) startmsg = lbstr("startmsg");
 786                 snprintf(cmd, sizeof(cmd), "MSGS %s|%s||1",
 787                          (oper == do_search) ? "SEARCH" : "ALL",
 788                          (oper == do_search) ? bstr("query") : ""
 789                         );
 790           }
 791                 break;
 792         case VIEW_BBS:
 793         default:
 794                 defaultsortorder = 1;
 795                 startmsg = -1;
 796                 sortit = 1;
 797                 care_for_empty_list = 1;
 798
 799                 rlid[oper].cmd(cmd, sizeof(cmd));
 800                 SetAccessCommand(oper);
 801
 802                 if (havebstr("maxmsgs"))
 803                         maxmsgs = ibstr("maxmsgs");
 804                 if (maxmsgs == 0) maxmsgs = DEFAULT_MAXMSGS;
 805
 806                 if (havebstr("startmsg")) {
 807                         startmsg = lbstr("startmsg");
 808                 }
 809
 810         }
 811
 812         nummsgs = load_msg_ptrs(cmd, with_headers);
 813         if (nummsgs == 0) {
 814                 if (care_for_empty_list) {
 815                         wprintf("<div class=\"nomsgs\"><br><em>");
 816                         switch (oper) {
 817                         case readnew:
 818                                 wprintf(_("No new messages."));
 819                                 break;
 820                         case readold:
 821                                 wprintf(_("No old messages."));
 822                                 break;
 823                         default:
 824                                 wprintf(_("No messages here."));
 825                         }
 826                         wprintf("</em><br></div>\n");
 827                         goto DONE;
 828                 }
 829
 830         }
 831
 832         if (sortit) {
 833                 CompareFunc SortIt;
 834                 memset(&SubTP, 0, sizeof(WCTemplputParams));
 835                 SubTP.Filter.ContextType = CTX_NONE;
 836                 SubTP.Context = NULL;
 837                 SortIt =  RetrieveSort(&SubTP, NULL, 0,
 838                                        HKEY("date"), defaultsortorder);
 839                 if (SortIt != NULL)
 840                         SortByPayload(WCC->summ, SortIt);
 841                 if (WCC->wc_view == VIEW_BBS) {
 842                         if (lbstr("SortOrder") == 2) {
 843                                 bbs_reverse = 1;
 844                                 num_displayed = -DEFAULT_MAXMSGS;
 845                         }
 846                         else {
 847                                 bbs_reverse = 0;
 848                                 num_displayed = DEFAULT_MAXMSGS;
 849                         }
 850                 }
 851         }
 852         if (startmsg < 0) startmsg = (bbs_reverse) ? nummsgs - 1 : 0;
 853
 854         if (load_seen) load_seen_flags();
 855
 856         /**
 857          * If we're to print s.th. above the message list...
 858          */
 859         switch (WCC->wc_view) {
 860         case VIEW_BBS:
 861                 BBViewToolBar = NewStrBuf();
 862                 MessageDropdown = NewStrBuf();
 863
 864                 maxmsgs = DrawMessageDropdown(MessageDropdown, maxmsgs, startmsg, num_displayed);
 865                 if (num_displayed < 0) {
 866                         startmsg += maxmsgs;
 867                         if (num_displayed != maxmsgs)
 868                                 maxmsgs = abs(maxmsgs) + 1;
 869                         else
 870                                 maxmsgs = abs(maxmsgs);
 871
 872                 }
 873                 memset(&SubTP, 0, sizeof(WCTemplputParams));
 874                 SubTP.Filter.ContextType = CTX_STRBUF;
 875                 SubTP.Context = MessageDropdown;
 876                 DoTemplate(HKEY("msg_listselector_top"), BBViewToolBar, &SubTP);
 877                 StrBufAppendBuf(WCC->WBuf, BBViewToolBar, 0);
 878                 FlushStrBuf(BBViewToolBar);
 879                 break;
 880         }
 881         WCC->startmsg =  startmsg;
 882         WCC->maxmsgs = maxmsgs;
 883         WCC->num_displayed = 0;
 884
 885         /* Put some helpful data in vars for mailsummary_json */
 886         svputlong("READLOOP:TOTALMSGS", nummsgs);
 887         svputlong("READLOOP:STARTMSG", startmsg);
 888         svputlong("WCVIEW", WCC->wc_view);
 889         /*
 890          * iterate over each message. if we need to load an attachment, do it here.
 891          */
 892         if (WCC->wc_view == VIEW_MAILBOX) goto NO_MSG_LOOP;
 893         /*
 894          * iterate over each message. if we need to load an attachment, do it here.
 895          */
 896         at = GetNewHashPos(WCC->summ, 0);
 897         num_displayed = i = 0;
 898         while (GetNextHashPos(WCC->summ, at, &HKLen, &HashKey, &vMsg)) {
 899                 Msg = (message_summary*) vMsg;
 900                 if ((Msg->msgnum >= startmsg) && (num_displayed <= maxmsgs)) {
 901                         switch (WCC->wc_view) {
 902                         case VIEW_WIKI:
 903                                 break;
 904                         case VIEW_CALBRIEF: /* load the mime attachments for special tasks... */
 905                         case VIEW_CALENDAR:
 906                                 load_calendar_item(Msg, Msg->is_new, &calv);
 907                                 break;
 908                         case VIEW_TASKS:
 909                                 display_task(Msg, Msg->is_new);
 910                                 break;
 911                         case VIEW_NOTES:
 912                                 display_note(Msg, Msg->is_new);
 913                                 break;
 914                         case VIEW_ADDRESSBOOK:
 915                                 ab_name = NULL;
 916                                 fetch_ab_name(Msg, &ab_name);
 917                                 if (ab_name == NULL)
 918                                         break;
 919                                 ++num_ab;
 920                                 addrbook = realloc(addrbook,
 921                                                    (sizeof(addrbookent) * num_ab) );
 922                                 safestrncpy(addrbook[num_ab-1].ab_name, ab_name,
 923                                             sizeof(addrbook[num_ab-1].ab_name));
 924                                 addrbook[num_ab-1].ab_msgnum = Msg->msgnum;
 925                                 free(ab_name);
 926                                 break;
 927                         case VIEW_BBS: /* Tag the mails we want to show in bbview... */
 928                         default:
 929                                 if (displayed_msgs == NULL) {
 930                                         displayed_msgs = malloc(sizeof(long) *
 931                                                                 (maxmsgs<nummsgs ? maxmsgs + 1 : nummsgs + 1));
 932                                 }
 933                                 if ((i >= startmsg) && (i < startmsg + maxmsgs)) {
 934                                         displayed_msgs[num_displayed] = Msg->msgnum;
 935                                         if (lowest_displayed < 0) lowest_displayed = a;
 936                                         highest_displayed = a;
 937
 938                                         num_displayed++;
 939                                 }
 940                         }
 941                 }
 942                 i++;
 943         }
 944         DeleteHashPos(&at);
 945
 946  NO_MSG_LOOP:
 947         /*
 948          * Done iterating the message list. now tasks we want to do after.
 949          */
 950         switch (WCC->wc_view) {
 951         case VIEW_MAILBOX:
 952           DoTemplate(HKEY("mailsummary_json"),NULL, &SubTP);
 953           break;
 954         case VIEW_BBS:
 955                 if (displayed_msgs != NULL) {
 956                         /** if we do a split bbview in the future, begin messages div here */
 957
 958                         for (a=0; a<num_displayed; ++a) {
 959                                 read_message(WCC->WBuf, HKEY("view_message"), displayed_msgs[a], NULL, &Mime);
 960                         }
 961
 962                         /** if we do a split bbview in the future, end messages div here */
 963
 964                         free(displayed_msgs);
 965                         displayed_msgs = NULL;
 966                 }
 967                 memset(&SubTP, 0, sizeof(WCTemplputParams));
 968                 SubTP.Filter.ContextType = CTX_STRBUF;
 969                 SubTP.Context = MessageDropdown;
 970                 DoTemplate(HKEY("msg_listselector_bottom"), BBViewToolBar, &SubTP);
 971                 StrBufAppendBuf(WCC->WBuf, BBViewToolBar, 0);
 972
 973                 FreeStrBuf(&BBViewToolBar);
 974                 FreeStrBuf(&MessageDropdown);
 975         }
 976
 977
 978 DONE:
 979         switch (WCC->wc_view) {
 980         case VIEW_WIKI:
 981                 break;
 982         case VIEW_CALBRIEF:
 983         case VIEW_CALENDAR:
 984                 render_calendar_view(&calv);
 985                 break;
 986         case VIEW_TASKS:
 987                 do_tasks_view();        /** Render the task list */
 988                 break;
 989         case VIEW_NOTES:
 990                 break;
 991         case VIEW_ADDRESSBOOK:
 992                 if (is_singlecard)
 993                         read_message(WC->WBuf, HKEY("view_message"), lbstr("startmsg"), NULL, &Mime);
 994                 else
 995                         do_addrbook_view(addrbook, num_ab);     /** Render the address book */
 996                 break;
 997         case VIEW_MAILBOX:
 998         case VIEW_BBS:
 999         default:
1000                 break;
1001         }
1002         /** Note: wDumpContent() will output one additional </div> tag. */
1003         if (WCC->wc_view != VIEW_MAILBOX) {
1004                 /* We ought to move this out into template */
1005                 wDumpContent(1);
1006         } else {
1007                 end_burst();
1008         }
1009         WCC->startmsg = 0;
1010         WCC->maxmsgs = 0;
1011         if (WCC->summ != NULL) {
1012                 DeleteHash(&WCC->summ);
1013         }
1014         if (addrbook != NULL) free(addrbook);
1015         FreeStrBuf(&BBViewToolBar);
1016 }
1017
1018
1019 /*
1020  * Back end for post_message()
1021  * ... this is where the actual message gets transmitted to the server.
1022  */
1023 void post_mime_to_server(void) {
1024         wcsession *WCC = WC;
1025         char top_boundary[SIZ];
1026         char alt_boundary[SIZ];
1027         int is_multipart = 0;
1028         static int seq = 0;
1029         wc_mime_attachment *att;
1030         char *encoded;
1031         size_t encoded_length;
1032         size_t encoded_strlen;
1033         char *txtmail = NULL;
1034
1035         sprintf(top_boundary, "Citadel--Multipart--%s--%04x--%04x",
1036                 ChrPtr(WCC->serv_info->serv_fqdn),
1037                 getpid(),
1038                 ++seq
1039         );
1040         sprintf(alt_boundary, "Citadel--Multipart--%s--%04x--%04x",
1041                 ChrPtr(WCC->serv_info->serv_fqdn),
1042                 getpid(),
1043                 ++seq
1044         );
1045
1046         /* RFC2045 requires this, and some clients look for it... */
1047         serv_puts("MIME-Version: 1.0");
1048         serv_puts("X-Mailer: " PACKAGE_STRING);
1049
1050         /* If there are attachments, we have to do multipart/mixed */
1051         if (GetCount(WCC->attachments) > 0) {
1052                 is_multipart = 1;
1053         }
1054
1055         if (is_multipart) {
1056                 /* Remember, serv_printf() appends an extra newline */
1057                 serv_printf("Content-type: multipart/mixed; boundary=\"%s\"\n", top_boundary);
1058                 serv_printf("This is a multipart message in MIME format.\n");
1059                 serv_printf("--%s", top_boundary);
1060         }
1061
1062         /* Remember, serv_printf() appends an extra newline */
1063         serv_printf("Content-type: multipart/alternative; "
1064                 "boundary=\"%s\"\n", alt_boundary);
1065         serv_printf("This is a multipart message in MIME format.\n");
1066         serv_printf("--%s", alt_boundary);
1067
1068         serv_puts("Content-type: text/plain; charset=utf-8");
1069         serv_puts("Content-Transfer-Encoding: quoted-printable");
1070         serv_puts("");
1071         txtmail = html_to_ascii(bstr("msgtext"), 0, 80, 0);
1072         text_to_server_qp(txtmail);     /* Transmit message in quoted-printable encoding */
1073         free(txtmail);
1074
1075         serv_printf("--%s", alt_boundary);
1076
1077         serv_puts("Content-type: text/html; charset=utf-8");
1078         serv_puts("Content-Transfer-Encoding: quoted-printable");
1079         serv_puts("");
1080         serv_puts("<html><body>\r\n");
1081         text_to_server_qp(bstr("msgtext"));     /* Transmit message in quoted-printable encoding */
1082         serv_puts("</body></html>\r\n");
1083
1084         serv_printf("--%s--", alt_boundary);
1085
1086         if (is_multipart) {
1087                 long len;
1088                 const char *Key;
1089                 void *vAtt;
1090                 HashPos  *it;
1091
1092                 /* Add in the attachments */
1093                 it = GetNewHashPos(WCC->attachments, 0);
1094                 while (GetNextHashPos(WCC->attachments, it, &len, &Key, &vAtt)) {
1095                         att = (wc_mime_attachment *)vAtt;
1096                         encoded_length = ((att->length * 150) / 100);
1097                         encoded = malloc(encoded_length);
1098                         if (encoded == NULL) break;
1099                         encoded_strlen = CtdlEncodeBase64(encoded, ChrPtr(att->Data), StrLength(att->Data), 1);
1100
1101                         serv_printf("--%s", top_boundary);
1102                         serv_printf("Content-type: %s", ChrPtr(att->ContentType));
1103                         serv_printf("Content-disposition: attachment; filename=\"%s\"", ChrPtr(att->FileName));
1104                         serv_puts("Content-transfer-encoding: base64");
1105                         serv_puts("");
1106                         serv_write(encoded, encoded_strlen);
1107                         serv_puts("");
1108                         serv_puts("");
1109                         free(encoded);
1110                 }
1111                 serv_printf("--%s--", top_boundary);
1112                 DeleteHashPos(&it);
1113         }
1114
1115         serv_puts("000");
1116 }
1117
1118
1119 /*
1120  * Post message (or don't post message)
1121  *
1122  * Note regarding the "dont_post" variable:
1123  * A random value (actually, it's just a timestamp) is inserted as a hidden
1124  * field called "postseq" when the display_enter page is generated.  This
1125  * value is checked when posting, using the static variable dont_post.  If a
1126  * user attempts to post twice using the same dont_post value, the message is
1127  * discarded.  This prevents the accidental double-saving of the same message
1128  * if the user happens to click the browser "back" button.
1129  */
1130 void post_message(void)
1131 {
1132         char buf[1024];
1133         StrBuf *encoded_subject = NULL;
1134         static long dont_post = (-1L);
1135         wc_mime_attachment  *att;
1136         int is_anonymous = 0;
1137         const StrBuf *display_name = NULL;
1138         wcsession *WCC = WC;
1139
1140         if (havebstr("force_room")) {
1141                 gotoroom(sbstr("force_room"));
1142         }
1143
1144         if (havebstr("display_name")) {
1145                 display_name = sbstr("display_name");
1146                 if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1147                         display_name = NULL;
1148                         is_anonymous = 1;
1149                 }
1150         }
1151
1152         if (WCC->upload_length > 0) {
1153                 const char *pch;
1154                 int n;
1155                 char N[64];
1156
1157                 lprintf(9, "%s:%d: we are uploading %d bytes\n", __FILE__, __LINE__, WCC->upload_length);
1158                 /** There's an attachment.  Save it to this struct... */
1159                 att = malloc(sizeof(wc_mime_attachment));
1160                 memset(att, 0, sizeof(wc_mime_attachment ));
1161                 att->length = WCC->upload_length;
1162                 att->ContentType = NewStrBufPlain(WCC->upload_content_type, -1);
1163                 att->FileName = NewStrBufPlain(WCC->upload_filename, -1);
1164
1165
1166                 if (WCC->attachments == NULL)
1167                         WCC->attachments = NewHash(1, NULL);
1168                 /* And add it to the list. */
1169                 n = snprintf(N, sizeof N, "%d", GetCount(WCC->attachments) + 1);
1170                 Put(WCC->attachments, N, n, att, DestroyMime);
1171
1172                 /**
1173                  * Mozilla sends a simple filename, which is what we want,
1174                  * but Satan's Browser sends an entire pathname.  Reduce
1175                  * the path to just a filename if we need to.
1176                  */
1177                 pch = strrchr(ChrPtr(att->FileName), '/');
1178                 if (pch != NULL) {
1179                         StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1180                 }
1181                 pch = strrchr(ChrPtr(att->FileName), '\\');
1182                 if (pch != NULL) {
1183                         StrBufCutLeft(att->FileName, pch - ChrPtr(att->FileName) + 1);
1184                 }
1185
1186                 /**
1187                  * Transfer control of this memory from the upload struct
1188                  * to the attachment struct.
1189                  */
1190                 att->Data = NewStrBufPlain(WCC->upload, WCC->upload_length);
1191                 free(WCC->upload);
1192                 WCC->upload_length = 0;
1193                 WCC->upload = NULL;
1194                 display_enter();
1195                 return;
1196         }
1197
1198         if (havebstr("cancel_button")) {
1199                 sprintf(WCC->ImportantMessage,
1200                         _("Cancelled.  Message was not posted."));
1201         } else if (havebstr("attach_button")) {
1202                 display_enter();
1203                 return;
1204         } else if (lbstr("postseq") == dont_post) {
1205                 sprintf(WCC->ImportantMessage,
1206                         _("Automatically cancelled because you have already "
1207                         "saved this message."));
1208         } else {
1209                 const char CMD[] = "ENT0 1|%s|%d|4|%s|%s||%s|%s|%s|%s|%s";
1210                 const StrBuf *Recp = NULL;
1211                 const StrBuf *Cc = NULL;
1212                 const StrBuf *Bcc = NULL;
1213                 const StrBuf *Wikipage = NULL;
1214                 const StrBuf *my_email_addr = NULL;
1215                 StrBuf *CmdBuf = NULL;
1216                 StrBuf *references = NULL;
1217
1218                 if (havebstr("references"))
1219                 {
1220                         const StrBuf *ref = sbstr("references");
1221                         references = NewStrBufPlain(ChrPtr(ref), StrLength(ref));
1222                         if (*ChrPtr(references) == '|') {       /* remove leading '|' if present */
1223                                 StrBufCutLeft(references, 1);
1224                         }
1225                         StrBufReplaceChars(references, '|', '!');
1226                 }
1227                 if (havebstr("subject")) {
1228                         const StrBuf *Subj;
1229                         /*
1230                          * make enough room for the encoded string;
1231                          * plus the QP header
1232                          */
1233                         Subj = sbstr("subject");
1234
1235                         StrBufRFC2047encode(&encoded_subject, Subj);
1236                 }
1237                 Recp = sbstr("recp");
1238                 Cc = sbstr("cc");
1239                 Bcc = sbstr("bcc");
1240                 Wikipage = sbstr("wikipage");
1241                 my_email_addr = sbstr("my_email_addr");
1242
1243                 CmdBuf = NewStrBufPlain(NULL,
1244                                         sizeof (CMD) +
1245                                         StrLength(Recp) +
1246                                         StrLength(encoded_subject) +
1247                                         StrLength(Cc) +
1248                                         StrLength(Bcc) +
1249                                         StrLength(Wikipage) +
1250                                         StrLength(my_email_addr) +
1251                                         StrLength(references));
1252
1253                 StrBufPrintf(CmdBuf,
1254                              CMD,
1255                              ChrPtr(Recp),
1256                              is_anonymous,
1257                              ChrPtr(encoded_subject),
1258                              ChrPtr(display_name),
1259                              ChrPtr(Cc),
1260                              ChrPtr(Bcc),
1261                              ChrPtr(Wikipage),
1262                              ChrPtr(my_email_addr),
1263                              ChrPtr(references));
1264                 FreeStrBuf(&references);
1265
1266                 lprintf(9, "%s\n", ChrPtr(CmdBuf));
1267                 serv_puts(ChrPtr(CmdBuf));
1268                 serv_getln(buf, sizeof buf);
1269                 FreeStrBuf(&CmdBuf);
1270                 FreeStrBuf(&encoded_subject);
1271                 if (buf[0] == '4') {
1272                         post_mime_to_server();
1273                         if (  (havebstr("recp"))
1274                            || (havebstr("cc"  ))
1275                            || (havebstr("bcc" ))
1276                         ) {
1277                                 sprintf(WCC->ImportantMessage, _("Message has been sent.\n"));
1278                         }
1279                         else {
1280                                 sprintf(WC->ImportantMessage, _("Message has been posted.\n"));
1281                         }
1282                         dont_post = lbstr("postseq");
1283                 } else {
1284                         lprintf(9, "%s:%d: server post error: %s\n", __FILE__, __LINE__, buf);
1285                         sprintf(WC->ImportantMessage, "%s", &buf[4]);
1286                         display_enter();
1287                         return;
1288                 }
1289         }
1290
1291         DeleteHash(&WCC->attachments);
1292
1293         /**
1294          *  We may have been supplied with instructions regarding the location
1295          *  to which we must return after posting.  If found, go there.
1296          */
1297         if (havebstr("return_to")) {
1298                 http_redirect(bstr("return_to"));
1299         }
1300         /**
1301          *  If we were editing a page in a wiki room, go to that page now.
1302          */
1303         else if (havebstr("wikipage")) {
1304                 snprintf(buf, sizeof buf, "wiki?page=%s", bstr("wikipage"));
1305                 http_redirect(buf);
1306         }
1307         /**
1308          *  Otherwise, just go to the "read messages" loop.
1309          */
1310         else {
1311                 readloop(readnew);
1312         }
1313 }
1314
1315
1316
1317
1318 /**
1319  * \brief display the message entry screen
1320  */
1321 void display_enter(void)
1322 {
1323         char buf[SIZ];
1324         long now;
1325         const StrBuf *display_name = NULL;
1326         int recipient_required = 0;
1327         int subject_required = 0;
1328         int recipient_bad = 0;
1329         int is_anonymous = 0;
1330         wcsession *WCC = WC;
1331
1332         now = time(NULL);
1333
1334         if (havebstr("force_room")) {
1335                 gotoroom(sbstr("force_room"));
1336         }
1337
1338         display_name = sbstr("display_name");
1339         if (!strcmp(ChrPtr(display_name), "__ANONYMOUS__")) {
1340                 display_name = NULL;
1341                 is_anonymous = 1;
1342         }
1343
1344         /** First test to see whether this is a room that requires recipients to be entered */
1345         serv_puts("ENT0 0");
1346         serv_getln(buf, sizeof buf);
1347
1348         if (!strncmp(buf, "570", 3)) {          /** 570 means that we need a recipient here */
1349                 recipient_required = 1;
1350         }
1351         else if (buf[0] != '2') {               /** Any other error means that we cannot continue */
1352                 sprintf(WCC->ImportantMessage, "%s", &buf[4]);
1353                 readloop(readnew);
1354                 return;
1355         }
1356
1357         /* Is the server strongly recommending that the user enter a message subject? */
1358         if ((buf[3] != '\0') && (buf[4] != '\0')) {
1359                 subject_required = extract_int(&buf[4], 1);
1360         }
1361
1362         /**
1363          * Are we perhaps in an address book view?  If so, then an "enter
1364          * message" command really means "add new entry."
1365          */
1366         if (WCC->wc_default_view == VIEW_ADDRESSBOOK) {
1367                 do_edit_vcard(-1, "", NULL, NULL, "",  ChrPtr(WCC->wc_roomname));
1368                 return;
1369         }
1370
1371         /*
1372          * Are we perhaps in a calendar room?  If so, then an "enter
1373          * message" command really means "add new calendar item."
1374          */
1375         if (WCC->wc_default_view == VIEW_CALENDAR) {
1376                 display_edit_event();
1377                 return;
1378         }
1379
1380         /*
1381          * Are we perhaps in a tasks view?  If so, then an "enter
1382          * message" command really means "add new task."
1383          */
1384         if (WCC->wc_default_view == VIEW_TASKS) {
1385                 display_edit_task();
1386                 return;
1387         }
1388
1389         /*
1390          * Otherwise proceed normally.
1391          * Do a custom room banner with no navbar...
1392          */
1393
1394         if (recipient_required) {
1395                 const StrBuf *Recp = NULL;
1396                 const StrBuf *Cc = NULL;
1397                 const StrBuf *Bcc = NULL;
1398                 const StrBuf *Wikipage = NULL;
1399                 StrBuf *CmdBuf = NULL;
1400                 const char CMD[] = "ENT0 0|%s|%d|0||%s||%s|%s|%s";
1401
1402                 Recp = sbstr("recp");
1403                 Cc = sbstr("cc");
1404                 Bcc = sbstr("bcc");
1405                 Wikipage = sbstr("wikipage");
1406
1407                 CmdBuf = NewStrBufPlain(NULL,
1408                                         sizeof (CMD) +
1409                                         StrLength(Recp) +
1410                                         StrLength(display_name) +
1411                                         StrLength(Cc) +
1412                                         StrLength(Bcc) +
1413                                         StrLength(Wikipage));
1414
1415                 StrBufPrintf(CmdBuf,
1416                              CMD,
1417                              ChrPtr(Recp),
1418                              is_anonymous,
1419                              ChrPtr(display_name),
1420                              ChrPtr(Cc),
1421                              ChrPtr(Bcc),
1422                              ChrPtr(Wikipage));
1423                 serv_puts(ChrPtr(CmdBuf));
1424                 serv_getln(buf, sizeof buf);
1425                 FreeStrBuf(&CmdBuf);
1426
1427                 if (!strncmp(buf, "570", 3)) {  /** 570 means we have an invalid recipient listed */
1428                         if (havebstr("recp") &&
1429                             havebstr("cc"  ) &&
1430                             havebstr("bcc" )) {
1431                                 recipient_bad = 1;
1432                         }
1433                 }
1434                 else if (buf[0] != '2') {       /** Any other error means that we cannot continue */
1435                         wprintf("<em>%s</em><br />\n", &buf[4]);/*TODO -> important message */
1436                         return;
1437                 }
1438         }
1439         svputlong("RCPTREQUIRED", recipient_required);
1440         svputlong("SUBJREQUIRED", recipient_required || subject_required);
1441
1442         begin_burst();
1443         output_headers(1, 0, 0, 0, 1, 0);
1444         DoTemplate(HKEY("edit_message"), NULL, &NoCtx);
1445         end_burst();
1446
1447         return;
1448 }
1449
1450 /**
1451  * \brief delete a message
1452  */
1453 void delete_msg(void)
1454 {
1455         long msgid;
1456         char buf[SIZ];
1457
1458         msgid = lbstr("msgid");
1459
1460         if (WC->wc_is_trash) {  /** Delete from Trash is a real delete */
1461                 serv_printf("DELE %ld", msgid);
1462         }
1463         else {                  /** Otherwise move it to Trash */
1464                 serv_printf("MOVE %ld|_TRASH_|0", msgid);
1465         }
1466
1467         serv_getln(buf, sizeof buf);
1468         sprintf(WC->ImportantMessage, "%s", &buf[4]);
1469
1470         readloop(readnew);
1471 }
1472
1473
1474 /**
1475  * \brief move a message to another folder
1476  */
1477 void move_msg(void)
1478 {
1479         long msgid;
1480         char buf[SIZ];
1481
1482         msgid = lbstr("msgid");
1483
1484         if (havebstr("move_button")) {
1485                 sprintf(buf, "MOVE %ld|%s", msgid, bstr("target_room"));
1486                 serv_puts(buf);
1487                 serv_getln(buf, sizeof buf);
1488                 sprintf(WC->ImportantMessage, "%s", &buf[4]);
1489         } else {
1490                 sprintf(WC->ImportantMessage, (_("The message was not moved.")));
1491         }
1492
1493         readloop(readnew);
1494 }
1495
1496
1497
1498
1499
1500 /*
1501  * Confirm move of a message
1502  */
1503 void confirm_move_msg(void)
1504 {
1505         long msgid;
1506         char buf[SIZ];
1507         char targ[SIZ];
1508
1509         msgid = lbstr("msgid");
1510
1511
1512         output_headers(1, 1, 2, 0, 0, 0);
1513         wprintf("<div id=\"banner\">\n");
1514         wprintf("<h1>");
1515         wprintf(_("Confirm move of message"));
1516         wprintf("</h1>");
1517         wprintf("</div>\n");
1518
1519         wprintf("<div id=\"content\" class=\"service\">\n");
1520
1521         wprintf("<CENTER>");
1522
1523         wprintf(_("Move this message to:"));
1524         wprintf("<br />\n");
1525
1526         wprintf("<form METHOD=\"POST\" action=\"move_msg\">\n");
1527         wprintf("<input type=\"hidden\" name=\"nonce\" value=\"%d\">\n", WC->nonce);
1528         wprintf("<INPUT TYPE=\"hidden\" NAME=\"msgid\" VALUE=\"%s\">\n", bstr("msgid"));
1529
1530         wprintf("<SELECT NAME=\"target_room\" SIZE=5>\n");
1531         serv_puts("LKRA");
1532         serv_getln(buf, sizeof buf);
1533         if (buf[0] == '1') {
1534                 while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
1535                         extract_token(targ, buf, 0, '|', sizeof targ);
1536                         wprintf("<OPTION>");
1537                         escputs(targ);
1538                         wprintf("\n");
1539                 }
1540         }
1541         wprintf("</SELECT>\n");
1542         wprintf("<br />\n");
1543
1544         wprintf("<INPUT TYPE=\"submit\" NAME=\"move_button\" VALUE=\"%s\">", _("Move"));
1545         wprintf("&nbsp;");
1546         wprintf("<INPUT TYPE=\"submit\" NAME=\"cancel_button\" VALUE=\"%s\">", _("Cancel"));
1547         wprintf("</form></CENTER>\n");
1548
1549         wprintf("</CENTER>\n");
1550         wDumpContent(1);
1551 }
1552
1553
1554 /*
1555  * Generic function to output an arbitrary MIME attachment from
1556  * message being composed
1557  *
1558  * partnum              The MIME part to be output
1559  * filename             Fake filename to give
1560  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1561  */
1562 void postpart(StrBuf *partnum, StrBuf *filename, int force_download)
1563 {
1564         void *vPart;
1565         StrBuf *content_type;
1566         wc_mime_attachment *part;
1567
1568         if (GetHash(WC->attachments, SKEY(partnum), &vPart) &&
1569             (vPart != NULL)) {
1570                 part = (wc_mime_attachment*) vPart;
1571                 if (force_download) {
1572                         content_type = NewStrBufPlain(HKEY("application/octet-stream"));
1573                 }
1574                 else {
1575                         content_type = NewStrBufDup(part->ContentType);
1576                 }
1577                 StrBufAppendBuf(WC->WBuf, part->Data, 0);
1578                 http_transmit_thing(ChrPtr(content_type), 0);
1579         } else {
1580                 hprintf("HTTP/1.1 404 %s\n", ChrPtr(partnum));
1581                 output_headers(0, 0, 0, 0, 0, 0);
1582                 hprintf("Content-Type: text/plain\r\n");
1583                 wprintf(_("An error occurred while retrieving this part: %s/%s\n"),
1584                         ChrPtr(partnum), ChrPtr(filename));
1585                 end_burst();
1586         }
1587         FreeStrBuf(&content_type);
1588 }
1589
1590
1591 /*
1592  * Generic function to output an arbitrary MIME part from an arbitrary
1593  * message number on the server.
1594  *
1595  * msgnum               Number of the item on the citadel server
1596  * partnum              The MIME part to be output
1597  * force_download       Nonzero to force set the Content-Type: header to "application/octet-stream"
1598  */
1599 void mimepart(int force_download)
1600 {
1601         wcsession *WCC = WC;
1602         StrBuf *Buf;
1603         off_t bytes;
1604         StrBuf *ContentType = NewStrBufPlain(HKEY("application/octet-stream"));
1605         const char *CT;
1606
1607         Buf = NewStrBuf();
1608         serv_printf("OPNA %s|%s", ChrPtr(WCC->UrlFragment2), ChrPtr(WCC->UrlFragment3));
1609         StrBuf_ServGetln(Buf);
1610         if (GetServerStatus(Buf, NULL) == 2) {
1611                 StrBufCutLeft(Buf, 4);
1612                 bytes = StrBufExtract_long(Buf, 0, '|');
1613                 if (!force_download) {
1614                         StrBufExtract_token(ContentType, Buf, 3, '|');
1615                 }
1616
1617                 read_server_binary(WCC->WBuf, bytes, Buf);
1618                 serv_puts("CLOS");
1619                 StrBuf_ServGetln(Buf);
1620                 CT = ChrPtr(ContentType);
1621
1622                 if (!force_download) {
1623                         if (!strcasecmp(ChrPtr(ContentType), "application/octet-stream")) {
1624                                 CT = GuessMimeByFilename(SKEY(WCC->UrlFragment4));
1625                         }
1626                         if (!strcasecmp(ChrPtr(ContentType), "application/octet-stream")) {
1627                                 CT = GuessMimeType(SKEY(WCC->WBuf));
1628                         }
1629                 }
1630                 http_transmit_thing(CT, 0);
1631         } else {
1632                 StrBufCutLeft(Buf, 4);
1633                 hprintf("HTTP/1.1 404 %s\n", ChrPtr(Buf));
1634                 output_headers(0, 0, 0, 0, 0, 0);
1635                 hprintf("Content-Type: text/plain\r\n");
1636                 wprintf(_("An error occurred while retrieving this part: %s\n"),
1637                         ChrPtr(Buf));
1638                 end_burst();
1639         }
1640         FreeStrBuf(&ContentType);
1641         FreeStrBuf(&Buf);
1642 }
1643
1644
1645 /*
1646  * Read any MIME part of a message, from the server, into memory.
1647  */
1648 StrBuf *load_mimepart(long msgnum, char *partnum)
1649 {
1650         off_t bytes;
1651         StrBuf *Buf;
1652
1653         Buf = NewStrBuf();
1654         serv_printf("DLAT %ld|%s", msgnum, partnum);
1655         StrBuf_ServGetln(Buf);
1656         if (GetServerStatus(Buf, NULL) == 6) {
1657                 StrBufCutLeft(Buf, 4);
1658                 bytes = StrBufExtract_long(Buf, 0, '|');
1659                 FreeStrBuf(&Buf);
1660                 Buf = NewStrBuf();
1661                 StrBuf_ServGetBLOBBuffered(Buf, bytes);
1662                 return(Buf);
1663         }
1664         else {
1665                 FreeStrBuf(&Buf);
1666                 return(NULL);
1667         }
1668 }
1669
1670 /*
1671  * Read any MIME part of a message, from the server, into memory.
1672  */
1673 void MimeLoadData(wc_mime_attachment *Mime)
1674 {
1675         StrBuf *Buf;
1676         off_t bytes;
1677 /* TODO: is there a chance the contenttype is different  to the one we know?     */
1678         serv_printf("DLAT %ld|%s", Mime->msgnum, ChrPtr(Mime->PartNum));
1679         Buf = NewStrBuf();
1680         StrBuf_ServGetln(Buf);
1681         if (GetServerStatus(Buf, NULL) == 6) {
1682                 bytes = extract_long(&(ChrPtr(Buf)[4]), 0);
1683
1684                 if (Mime->Data == NULL)
1685                         Mime->Data = NewStrBufPlain(NULL, bytes);
1686                 StrBuf_ServGetBLOBBuffered(Mime->Data, bytes);
1687         }
1688         else {
1689                 FlushStrBuf(Mime->Data);
1690                 /* TODO XImportant message */
1691         }
1692         FreeStrBuf(&Buf);
1693 }
1694
1695
1696
1697
1698 void view_mimepart(void) {
1699         mimepart(0);
1700 }
1701
1702 void download_mimepart(void) {
1703         mimepart(1);
1704 }
1705
1706 void view_postpart(void) {
1707         postpart(WC->UrlFragment2,
1708                  WC->UrlFragment3,
1709                  0);
1710 }
1711
1712 void download_postpart(void) {
1713         postpart(WC->UrlFragment2,
1714                  WC->UrlFragment3,
1715                  1);
1716 }
1717
1718 void h_readnew(void) { readloop(readnew);}
1719 void h_readold(void) { readloop(readold);}
1720 void h_readfwd(void) { readloop(readfwd);}
1721 void h_headers(void) { readloop(headers);}
1722 void h_do_search(void) { readloop(do_search);}
1723
1724 void jsonMessageListHdr(void)
1725 {
1726         /* TODO: make a generic function */
1727   hprintf("HTTP/1.1 200 OK\r\n");
1728   hprintf("Content-type: application/json; charset=utf-8\r\n");
1729   hprintf("Server: %s / %s\r\n", PACKAGE_STRING, ChrPtr(WC->serv_info->serv_software));
1730   hprintf("Connection: close\r\n");
1731   hprintf("Pragma: no-cache\r\nCache-Control: no-store\r\nExpires:-1\r\n");
1732   begin_burst();
1733 }
1734 /* Spit out the new summary view. This is basically a static page, so clients can cache the layout, all the dirty work is javascript :) */
1735 void new_summary_view(void) {
1736   begin_burst();
1737   DoTemplate(HKEY("msg_listview"),NULL,&NoCtx);
1738   DoTemplate(HKEY("trailing"),NULL,&NoCtx);
1739   end_burst();
1740 }
1741 /** Output message list in JSON-format */
1742 void jsonMessageList(void) {
1743   const StrBuf *room = sbstr("room");
1744   long oper = (havebstr("query")) ? do_search : readnew;
1745   WC->is_ajax = 1;
1746   gotoroom(room);
1747   readloop(oper);
1748   WC->is_ajax = 0;
1749 }
1750
1751 void
1752 InitModule_MSG
1753 (void)
1754 {
1755         RegisterPreference("use_sig",
1756                            _("Attach signature to email messages?"),
1757                            PRF_YESNO,
1758                            NULL);
1759         RegisterPreference("signature", _("Use this signature:"), PRF_QP_STRING, NULL);
1760         RegisterPreference("default_header_charset",
1761                            _("Default character set for email headers:"),
1762                            PRF_STRING,
1763                            NULL);
1764         RegisterPreference("defaultfrom", _("Preferred email address"), PRF_STRING, NULL);
1765         RegisterPreference("defaultname",
1766                            _("Preferred display name for email messages"),
1767                            PRF_STRING,
1768                            NULL);
1769         RegisterPreference("defaulthandle",
1770                            _("Preferred display name for bulletin board posts"),
1771                            PRF_STRING,
1772                            NULL);
1773         RegisterPreference("mailbox",_("Mailbox view mode"), PRF_STRING, NULL);
1774
1775         WebcitAddUrlHandler(HKEY("readnew"), h_readnew, NEED_URL);
1776         WebcitAddUrlHandler(HKEY("readold"), h_readold, NEED_URL);
1777         WebcitAddUrlHandler(HKEY("readfwd"), h_readfwd, NEED_URL);
1778         WebcitAddUrlHandler(HKEY("headers"), h_headers, NEED_URL);
1779         WebcitAddUrlHandler(HKEY("do_search"), h_do_search, 0);
1780         WebcitAddUrlHandler(HKEY("display_enter"), display_enter, 0);
1781         WebcitAddUrlHandler(HKEY("post"), post_message, 0);
1782         WebcitAddUrlHandler(HKEY("move_msg"), move_msg, 0);
1783         WebcitAddUrlHandler(HKEY("delete_msg"), delete_msg, 0);
1784         WebcitAddUrlHandler(HKEY("confirm_move_msg"), confirm_move_msg, 0);
1785         WebcitAddUrlHandler(HKEY("msg"), embed_message, NEED_URL);
1786         WebcitAddUrlHandler(HKEY("printmsg"), print_message, NEED_URL);
1787         WebcitAddUrlHandler(HKEY("mobilemsg"), mobile_message_view, NEED_URL);
1788         WebcitAddUrlHandler(HKEY("msgheaders"), display_headers, NEED_URL);
1789
1790         WebcitAddUrlHandler(HKEY("mimepart"), view_mimepart, NEED_URL);
1791         WebcitAddUrlHandler(HKEY("mimepart_download"), download_mimepart, NEED_URL);
1792         WebcitAddUrlHandler(HKEY("postpart"), view_postpart, NEED_URL);
1793         WebcitAddUrlHandler(HKEY("postpart_download"), download_postpart, NEED_URL);
1794
1795         /* json */
1796         WebcitAddUrlHandler(HKEY("roommsgs"), jsonMessageList,0);
1797         return ;
1798 }
1799
1800 void
1801 SessionDetachModule_MSG
1802 (wcsession *sess)
1803 {
1804         DeleteHash(&sess->summ);
1805 }