webcit/serv_func.c

   1 /*
   2  * $Id$
   3  */
   4
   5 #include "webcit.h"
   6 #include "webserver.h"
   7
   8
   9 void DeleteServInfo(ServInfo **FreeMe)
  10 {
  11         if (*FreeMe == NULL)
  12                 return;
  13         FreeStrBuf(&(*FreeMe)->serv_nodename);
  14         FreeStrBuf(&(*FreeMe)->serv_humannode);
  15         FreeStrBuf(&(*FreeMe)->serv_fqdn);
  16         FreeStrBuf(&(*FreeMe)->serv_software);
  17         FreeStrBuf(&(*FreeMe)->serv_bbs_city);
  18         FreeStrBuf(&(*FreeMe)->serv_sysadm);
  19         FreeStrBuf(&(*FreeMe)->serv_moreprompt);
  20         FreeStrBuf(&(*FreeMe)->serv_default_cal_zone);
  21         FreeStrBuf(&(*FreeMe)->serv_svn_revision);
  22         free(*FreeMe);
  23         *FreeMe = NULL;
  24 }
  25
  26 /*
  27  * get info about the server we've connected to
  28  *
  29  * browser_host         the citadell we want to connect to
  30  * user_agent           which browser uses our client?
  31  */
  32 ServInfo *get_serv_info(StrBuf *browser_host, char *user_agent)
  33 {
  34         ServInfo *info;
  35         StrBuf *Buf;
  36         char buf[SIZ];
  37         int a;
  38
  39         /** Tell the server what kind of client is connecting */
  40         serv_printf("IDEN %d|%d|%d|%s|%s",
  41                     DEVELOPER_ID,
  42                     CLIENT_ID,
  43                     CLIENT_VERSION,
  44                     user_agent,
  45                     ChrPtr(browser_host)
  46         );
  47         serv_getln(buf, sizeof buf);
  48
  49         /** Tell the server what kind of richtext we prefer */
  50         serv_puts("MSGP text/calendar|text/html|text/plain");
  51         serv_getln(buf, sizeof buf);
  52
  53         /*
  54          * Tell the server that when we save a calendar event, we
  55          * want invitations to be generated by the Citadel server
  56          * instead of by the client.
  57          */
  58         serv_puts("ICAL sgi|1");
  59         serv_getln(buf, sizeof buf);
  60
  61         /** Now ask the server to tell us a little bit about itself... */
  62         serv_puts("INFO");
  63         serv_getln(buf, sizeof buf);
  64         if (buf[0] != '1')
  65                 return NULL;
  66
  67         info = (ServInfo*)malloc(sizeof(ServInfo));
  68         memset(info, 0, sizeof(ServInfo));
  69         a = 0;
  70         Buf = NewStrBuf();
  71         while (StrBuf_ServGetln(Buf), (strcmp(ChrPtr(Buf), "000")!= 0)) {
  72 /*              lprintf (1, "a: %d [%s]", a, ChrPtr(Buf));*/
  73                 switch (a) {
  74                 case 0:
  75                         info->serv_pid = StrToi(Buf);
  76                         WC->ctdl_pid = info->serv_pid;
  77                         break;
  78                 case 1:
  79                         info->serv_nodename = NewStrBufDup(Buf);
  80                         break;
  81                 case 2:
  82                         info->serv_humannode = NewStrBufDup(Buf);
  83                         break;
  84                 case 3:
  85                         info->serv_fqdn = NewStrBufDup(Buf);
  86                         break;
  87                 case 4:
  88                         info->serv_software = NewStrBufDup(Buf);
  89                         break;
  90                 case 5:
  91                         info->serv_rev_level = StrToi(Buf);
  92                         break;
  93                 case 6:
  94                         info->serv_bbs_city = NewStrBufDup(Buf);
  95                         break;
  96                 case 7:
  97                         info->serv_sysadm = NewStrBufDup(Buf);
  98                         break;
  99                 case 9:
 100                         info->serv_moreprompt = NewStrBufDup(Buf);
 101                         break;
 102                 case 14:
 103                         info->serv_supports_ldap = StrToi(Buf);
 104                         break;
 105                 case 15:
 106                         info->serv_newuser_disabled = StrToi(Buf);
 107                         break;
 108                 case 16:
 109                         info->serv_default_cal_zone = NewStrBufDup(Buf);
 110                         break;
 111                 case 20:
 112                         info->serv_supports_sieve = StrToi(Buf);
 113                         break;
 114                 case 21:
 115                         info->serv_fulltext_enabled = StrToi(Buf);
 116                         break;
 117                 case 22:
 118                         info->serv_svn_revision = NewStrBufDup(Buf);
 119                         break;
 120                 case 23:
 121                         info->serv_supports_openid = StrToi(Buf);
 122                         break;
 123                 }
 124                 ++a;
 125         }
 126         FreeStrBuf(&Buf);
 127         return info;
 128 }
 129
 130
 131
 132 /**
 133  *  Read Citadel variformat text and spit it out as HTML.
 134  *  align html align string
 135  */
 136 inline void fmout(char *align)
 137 {
 138         _fmout(WC->WBuf, align);
 139 }
 140
 141 void _fmout(StrBuf *Target, char *align)
 142 {
 143         int intext = 0;
 144         int bq = 0;
 145         char buf[SIZ];
 146
 147         StrBufAppendPrintf(Target, "<div align=%s>\n", align);
 148         while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 149
 150                 if ((intext == 1) && (isspace(buf[0]))) {
 151                         wprintf("<br />");
 152                 }
 153                 intext = 1;
 154
 155                 /**
 156                  * Quoted text should be displayed in italics and in a
 157                  * different colour.  This code understands Citadel-style
 158                  * " >" quotes and will convert to <BLOCKQUOTE> tags.
 159                  */
 160                 if ((bq == 0) && (!strncmp(buf, " >", 2))) {
 161                         StrBufAppendBufPlain(Target, HKEY("<BLOCKQUOTE>"), 0);
 162                         bq = 1;
 163                 } else if ((bq == 1) && (strncmp(buf, " >", 2))) {
 164                         StrBufAppendBufPlain(Target, HKEY("</BLOCKQUOTE>"), 0);
 165                         bq = 0;
 166                 }
 167                 if ((bq == 1) && (!strncmp(buf, " >", 2))) {
 168                         strcpy(buf, &buf[2]);
 169                 }
 170                 /** Activate embedded URL's */
 171                 url(buf, sizeof(buf));
 172
 173                 escputs(buf);
 174                 StrBufAppendBufPlain(Target, HKEY("\n"), 0);
 175         }
 176         if (bq == 1) {
 177                 wprintf("</I>");
 178         }
 179         wprintf("</div><br />\n");
 180 }
 181
 182 void FmOut(StrBuf *Target, char *align, StrBuf *Source)
 183 {
 184         const char *ptr, *pte;
 185         const char *BufPtr = NULL;
 186         StrBuf *Line = NewStrBuf();
 187         StrBuf *Line1 = NewStrBuf();
 188         StrBuf *Line2 = NewStrBuf();
 189         int bn = 0;
 190         int bq = 0;
 191         int i, n, done = 0;
 192         long len;
 193         int intext = 0;
 194
 195         StrBufAppendPrintf(Target, "<div class=\"fmout-%s\">\n", align);
 196         while ((n = StrBufSipLine(Line, Source, &BufPtr), n >= 0) && !done)
 197         {
 198                 done = n == 0;
 199                 bq = 0;
 200                 i = 0;
 201                 ptr = ChrPtr(Line);
 202                 len = StrLength(Line);
 203                 pte = ptr + len;
 204
 205                 if ((intext == 1) && (isspace(*ptr))) {
 206                         StrBufAppendBufPlain(Target, HKEY("<br>"), 0);
 207                 }
 208                 intext = 1;
 209                 if (isspace(*ptr)) while ((ptr < pte) &&
 210                        ((*ptr == '>') ||
 211                         isspace(*ptr)))
 212                 {
 213                         if (*ptr == '>')
 214                                 bq++;
 215                         ptr ++;
 216                         i++;
 217                 }
 218
 219                 /**
 220                  * Quoted text should be displayed in italics and in a
 221                  * different colour.  This code understands Citadel-style
 222                  * " >" quotes and will convert to <BLOCKQUOTE> tags.
 223                  */
 224                 if (i > 0) StrBufCutLeft(Line, i);
 225
 226
 227                 for (i = bn; i < bq; i++)
 228                         StrBufAppendBufPlain(Target, HKEY("<blockquote>"), 0);
 229                 for (i = bq; i < bn; i++)
 230                         StrBufAppendBufPlain(Target, HKEY("</blockquote>"), 0);
 231                 bn = bq;
 232
 233                 if (StrLength(Line) == 0)
 234                         continue;
 235                 /** Activate embedded URL's */
 236                 UrlizeText(Line1, Line, Line2);
 237
 238                 StrEscAppend(Target, Line1, NULL, 0, 0);
 239
 240                 StrBufAppendBufPlain(Target, HKEY("\n"), 0);
 241         }
 242         for (i = 0; i < bn; i++)
 243                 StrBufAppendBufPlain(Target, HKEY("</blockquote>"), 0);
 244         StrBufAppendBufPlain(Target, HKEY("</div><br>\n"), 0);
 245         FreeStrBuf(&Line);
 246         FreeStrBuf(&Line1);
 247         FreeStrBuf(&Line2);
 248 }
 249
 250
 251
 252
 253 /**
 254  *  Read Citadel variformat text and spit it out as HTML in a form
 255  * suitable for embedding in another message (forward/quote).
 256  * (NO LINEBREAKS ALLOWED HERE!)
 257  */
 258 void pullquote_fmout(void) {
 259         int intext = 0;
 260         int bq = 0;
 261         char buf[SIZ];
 262
 263         while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 264
 265                 if ((intext == 1) && (isspace(buf[0]))) {
 266                         wprintf("<br />");
 267                 }
 268                 intext = 1;
 269
 270                 /**
 271                  * Quoted text should be displayed in italics and in a
 272                  * different colour.  This code understands Citadel-style
 273                  * " >" quotes and will convert to <BLOCKQUOTE> tags.
 274                  */
 275                 if ((bq == 0) && (!strncmp(buf, " >", 2))) {
 276                         wprintf("<BLOCKQUOTE>");
 277                         bq = 1;
 278                 } else if ((bq == 1) && (strncmp(buf, " >", 2))) {
 279                         wprintf("</BLOCKQUOTE>");
 280                         bq = 0;
 281                 }
 282                 if ((bq == 1) && (!strncmp(buf, " >", 2))) {
 283                         strcpy(buf, &buf[2]);
 284                 }
 285
 286                 msgescputs(buf);
 287         }
 288         if (bq == 1) {
 289                 wprintf("</I>");
 290         }
 291 }
 292
 293
 294
 295
 296 /**
 297  *  Transmit message text (in memory) to the server.
 298  *
 299  *  ptr Pointer to the message being transmitted
 300  */
 301 void text_to_server(char *ptr)
 302 {
 303         char buf[256];
 304         int ch, a, pos, len;
 305
 306         pos = 0;
 307         buf[0] = 0;
 308
 309         while (ptr[pos] != 0) {
 310                 ch = ptr[pos++];
 311                 if (ch == 10) {
 312                         len = strlen(buf);
 313                         while ( (isspace(buf[len - 1]))
 314                                 && (buf[0] !=  '\0')
 315                                 && (buf[1] !=  '\0') )
 316                                 buf[--len] = 0;
 317                         serv_puts(buf);
 318                         buf[0] = 0;
 319                         if (ptr[pos] != 0) strcat(buf, " ");
 320                 } else {
 321                         a = strlen(buf);
 322                         buf[a + 1] = 0;
 323                         buf[a] = ch;
 324                         if ((ch == 32) && (strlen(buf) > 200)) {
 325                                 buf[a] = 0;
 326                                 serv_puts(buf);
 327                                 buf[0] = 0;
 328                         }
 329                         if (strlen(buf) > 250) {
 330                                 serv_puts(buf);
 331                                 buf[0] = 0;
 332                         }
 333                 }
 334         }
 335         serv_puts(buf);
 336 }
 337
 338
 339 /**
 340  *  Transmit message text (in memory) to the server,
 341  *        converting to Quoted-Printable encoding as we go.
 342  *
 343  *  ptr Pointer to the message being transmitted
 344  */
 345 void text_to_server_qp(char *ptr)
 346 {
 347         unsigned char ch, buf[256];
 348         int pos;
 349         int output_len = 0;
 350
 351         pos = 0;
 352         buf[0] = 0;
 353         output_len = 0;
 354
 355         while (ptr[pos] != 0) {
 356                 ch = (unsigned char)(ptr[pos++]);
 357
 358                 if (ch == 13) {
 359                         /* ignore carriage returns */
 360                 }
 361                 else if (ch == 10) {
 362                         /* hard line break */
 363                         if (output_len > 0) {
 364                                 if (isspace(buf[output_len-1])) {
 365                                         sprintf((char *)&buf[output_len-1], "=%02X", buf[output_len-1]);
 366                                         output_len += 2;
 367                                 }
 368                         }
 369                         buf[output_len++] = 0;
 370                         serv_puts((char *)buf);
 371                         output_len = 0;
 372                 }
 373                 else if (ch == 9) {
 374                         buf[output_len++] = ch;
 375                 }
 376                 else if ( (ch >= 32) && (ch <= 60) ) {
 377                         buf[output_len++] = ch;
 378                 }
 379                 else if ( (ch >= 62) && (ch <= 126) ) {
 380                         buf[output_len++] = ch;
 381                 }
 382                 else {
 383                         sprintf((char *)&buf[output_len], "=%02X", ch);
 384                         output_len += 3;
 385                 }
 386
 387                 if (output_len > 72) {
 388                         /* soft line break */
 389                         if (isspace(buf[output_len-1])) {
 390                                 sprintf((char *)&buf[output_len-1], "=%02X", buf[output_len-1]);
 391                                 output_len += 2;
 392                         }
 393                         buf[output_len++] = '=';
 394                         buf[output_len++] = 0;
 395                         serv_puts((char *)buf);
 396                         output_len = 0;
 397                 }
 398         }
 399
 400         /* end of data - transmit anything that's left */
 401         if (output_len > 0) {
 402                 if (isspace(buf[output_len-1])) {
 403                         sprintf((char *)&buf[output_len-1], "=%02X", buf[output_len-1]);
 404                         output_len += 2;
 405                 }
 406                 buf[output_len++] = 0;
 407                 serv_puts((char *)buf);
 408                 output_len = 0;
 409         }
 410 }
 411
 412
 413
 414
 415 /**
 416  *  translate server message output to text
 417  * (used for editing room info files and such)
 418  */
 419 void server_to_text()
 420 {
 421         char buf[SIZ];
 422
 423         int count = 0;
 424
 425         while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 426                 if ((buf[0] == 32) && (count > 0)) {
 427                         wprintf("\n");
 428                 }
 429                 wprintf("%s", buf);
 430                 ++count;
 431         }
 432 }
 433
 434
 435
 436 /**
 437  * Read binary data from server into memory using a series of
 438  * server READ commands.
 439  * \return the read content as StrBuf
 440  */
 441 int read_server_binary(StrBuf *Ret, size_t total_len, StrBuf *Buf)
 442 {
 443         char buf[SIZ];
 444         size_t bytes = 0;
 445         size_t thisblock = 0;
 446
 447         if (Ret == NULL)
 448             return -1;
 449
 450         while (bytes < total_len) {
 451                 thisblock = 4095;
 452                 if ((total_len - bytes) < thisblock) {
 453                         thisblock = total_len - bytes;
 454                         if (thisblock == 0) {
 455                                 FlushStrBuf(Ret);
 456                                 FreeStrBuf(&Buf);
 457                                 return -1;
 458                         }
 459                 }
 460                 serv_printf("READ %d|%d", (int)bytes, (int)thisblock);
 461                 if (StrBuf_ServGetln(Buf) > 0)
 462                 {
 463                         if (GetServerStatus(Buf, NULL) == 6)
 464                         {
 465                             StrBufCutLeft(Buf, 4);
 466                             thisblock = StrTol(Buf);
 467                             if (!WC->connected) {
 468                                     FlushStrBuf(Ret);
 469                                     FreeStrBuf(&Buf);
 470                                     return -1;
 471                             }
 472                             StrBuf_ServGetBLOBBuffered(Ret, thisblock);
 473                             bytes += thisblock;
 474                     }
 475                     else {
 476                             FreeStrBuf(&Buf);
 477                             lprintf(3, "Error: %s\n", &buf[4]);
 478                             return -1;
 479                     }
 480                 }
 481         }
 482         return StrLength(Ret);
 483 }
 484
 485
 486 /**
 487  *  Read text from server, appending to a string buffer until the
 488  * usual 000 terminator is found.  Caller is responsible for freeing
 489  * the returned pointer.
 490  */
 491 int read_server_text(StrBuf *Buf, long *nLines)
 492 {
 493         wcsession *WCC = WC;
 494         long nRead;
 495         long nTotal = 0;
 496         long nlines;
 497
 498         nlines = 0;
 499         while ((WCC->serv_sock!=-1) &&
 500                (nRead = StrBuf_ServGetln(Buf), (nRead >= 0) ))
 501         {
 502                 if (strcmp(ChrPtr(Buf) + nTotal, "000") != 0) {
 503                         StrBufCutRight(Buf, nRead);
 504                         break;
 505                 }
 506                 nTotal += nRead;
 507                 nlines ++;
 508         }
 509
 510         *nLines = nlines;
 511         return nTotal;
 512 }
 513
 514
 515
 516
 517
 518
 519 int GetServerStatus(StrBuf *Line, long* FullState)
 520 {
 521         if (FullState != NULL)
 522                 *FullState = StrTol(Line);
 523         return ChrPtr(Line)[0] - 48;
 524 }
 525
 526
 527 void tmplput_serv_ip(StrBuf *Target, WCTemplputParams *TP)
 528 {
 529         StrBufAppendPrintf(Target, "%d", WC->ctdl_pid);
 530 }
 531
 532 void tmplput_serv_nodename(StrBuf *Target, WCTemplputParams *TP)
 533 {
 534         wcsession *WCC = WC;
 535         if (WCC->serv_info == NULL)
 536                 return;
 537         StrBufAppendTemplate(Target, TP, WCC->serv_info->serv_nodename, 0);
 538 }
 539
 540 void tmplput_serv_humannode(StrBuf *Target, WCTemplputParams *TP)
 541 {
 542         wcsession *WCC = WC;
 543         if (WCC->serv_info == NULL)
 544                 return;
 545         StrBufAppendTemplate(Target, TP, WCC->serv_info->serv_humannode, 0);
 546 }
 547
 548 void tmplput_serv_fqdn(StrBuf *Target, WCTemplputParams *TP)
 549 {
 550         wcsession *WCC = WC;
 551         if (WCC->serv_info == NULL)
 552                 return;
 553         StrBufAppendTemplate(Target, TP, WCC->serv_info->serv_fqdn, 0);
 554 }
 555
 556 void tmplput_serv_software(StrBuf *Target, WCTemplputParams *TP)
 557 {
 558         wcsession *WCC = WC;
 559         if (WCC->serv_info == NULL)
 560                 return;
 561         StrBufAppendTemplate(Target, TP, WCC->serv_info->serv_software, 0);
 562 }
 563
 564 void tmplput_serv_rev_level(StrBuf *Target, WCTemplputParams *TP)
 565 {
 566         wcsession *WCC = WC;
 567         if (WCC->serv_info == NULL)
 568                 return;
 569         StrBufAppendPrintf(Target, "%d.%02d",
 570                             WCC->serv_info->serv_rev_level / 100,
 571                             WCC->serv_info->serv_rev_level % 100);
 572 }
 573 int conditional_serv_newuser_disabled(StrBuf *Target, WCTemplputParams *TP)
 574 {
 575         wcsession *WCC = WC;
 576         if (WCC->serv_info == NULL)
 577                 return 0;
 578         return WCC->serv_info->serv_newuser_disabled != 0;
 579 }
 580 int conditional_serv_supports_openid(StrBuf *Target, WCTemplputParams *TP)
 581 {
 582         wcsession *WCC = WC;
 583         if (WCC->serv_info == NULL)
 584                 return 0;
 585         return WCC->serv_info->serv_supports_openid != 0;
 586 }
 587
 588 void tmplput_serv_bbs_city(StrBuf *Target, WCTemplputParams *TP)
 589 {
 590         wcsession *WCC = WC;
 591         if (WCC->serv_info == NULL)
 592                 return;
 593         StrBufAppendTemplate(Target, TP, WC->serv_info->serv_bbs_city, 0);
 594 }
 595
 596
 597 void tmplput_mesg(StrBuf *Target, WCTemplputParams *TP)
 598 {
 599         int n = 0;
 600         int Done = 0;
 601         StrBuf *Line;
 602         StrBuf *Buf;
 603
 604         Buf = NewStrBuf();
 605         Line = NewStrBuf();
 606         serv_printf("MESG %s", TP->Tokens->Params[0]->Start);
 607
 608         StrBuf_ServGetln(Line);
 609         if (GetServerStatus(Line, NULL) == 1) {
 610                 while (!Done &&  (StrBuf_ServGetln(Line)>=0)) {
 611                         if ( (StrLength(Line)==3) &&
 612                              !strcmp(ChrPtr(Line), "000"))
 613                                 Done = 1;
 614                         else
 615                         {
 616                                 if (n > 0)
 617                                         StrBufAppendBufPlain(Buf, "\n", 1, 0);
 618                                 StrBufAppendBuf(Buf, Line, 0);
 619                         }
 620                         n++;
 621                 }
 622
 623                 FlushStrBuf(Line);
 624                 FmOut(Line, "center", Buf);
 625                 StrBufAppendTemplate(Target, TP, Line, 1);
 626         }
 627         FreeStrBuf(&Buf);
 628         FreeStrBuf(&Line);
 629 }
 630
 631 void
 632 InitModule_SERVFUNC
 633 (void)
 634 {
 635
 636         RegisterConditional(HKEY("COND:SERV:OPENID"), 2, conditional_serv_supports_openid, CTX_NONE);
 637         RegisterConditional(HKEY("COND:SERV:NEWU"), 2, conditional_serv_newuser_disabled, CTX_NONE);
 638         RegisterNamespace("SERV:PID", 0, 0, tmplput_serv_ip, CTX_NONE);
 639         RegisterNamespace("SERV:NODENAME", 0, 1, tmplput_serv_nodename, CTX_NONE);
 640         RegisterNamespace("SERV:HUMANNODE", 0, 1, tmplput_serv_humannode, CTX_NONE);
 641         RegisterNamespace("SERV:FQDN", 0, 1, tmplput_serv_fqdn, CTX_NONE);
 642         RegisterNamespace("SERV:SOFTWARE", 0, 1, tmplput_serv_software, CTX_NONE);
 643         RegisterNamespace("SERV:REV_LEVEL", 0, 0, tmplput_serv_rev_level, CTX_NONE);
 644         RegisterNamespace("SERV:BBS_CITY", 0, 1, tmplput_serv_bbs_city, CTX_NONE);
 645         RegisterNamespace("SERV:MESG", 1, 2, tmplput_mesg, CTX_NONE);
 646 /*TODO //       RegisterNamespace("SERV:LDAP_SUPP", 0, 0, tmplput_serv_ldap_enabled, 0); */
 647 }
 648
 649 /*@}*/