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