webcit/preferences.c

   1 /*
   2  * $Id$
   3  *
   4  * Manage user preferences with a little help from the Citadel server.
   5  *
   6  */
   7
   8 #include "webcit.h"
   9 #include "webserver.h"
  10 #include "groupdav.h"
  11
  12 HashList *PreferenceHooks;
  13
  14 typedef struct _PrefDef {
  15         long Type;
  16         StrBuf *Setting;
  17         const char *PrefStr;
  18         PrefEvalFunc OnLoad;
  19 } PrefDef;
  20
  21 typedef struct _Preference {
  22         StrBuf *Key;
  23         StrBuf *Val;
  24         PrefDef *Type;
  25
  26         long lval;
  27         long decoded;
  28         StrBuf *DeQPed;
  29 }Preference;
  30
  31 void DestroyPrefDef(void *vPrefDef)
  32 {
  33         PrefDef *Prefdef = (PrefDef*) vPrefDef;
  34         FreeStrBuf(&Prefdef->Setting);
  35         free(Prefdef);
  36 }
  37
  38 void DestroyPreference(void *vPref)
  39 {
  40         Preference *Pref = (Preference*) vPref;
  41         FreeStrBuf(&Pref->Key);
  42         FreeStrBuf(&Pref->Val);
  43         FreeStrBuf(&Pref->DeQPed);
  44         free(Pref);
  45
  46 }
  47 void RegisterPreference(const char *Setting, long SettingLen,
  48                         const char *PrefStr,
  49                         long Type,
  50                         PrefEvalFunc OnLoad)
  51 {
  52         PrefDef *Newpref = (PrefDef*) malloc(sizeof(PrefDef));
  53         Newpref->Setting = NewStrBufPlain(Setting, SettingLen);
  54         Newpref->PrefStr = PrefStr;
  55         Newpref->Type = Type;
  56         Newpref->OnLoad = OnLoad;
  57         Put(PreferenceHooks, Setting, SettingLen, Newpref, DestroyPrefDef);
  58 }
  59
  60 const char *PrefGetLocalStr(const char *Setting, long len)
  61 {
  62         void *hash_value;
  63         if (GetHash(PreferenceHooks, Setting, len, &hash_value) != 0) {
  64                 PrefDef *Newpref = (PrefDef*) hash_value;
  65                 return _(Newpref->PrefStr);
  66
  67         }
  68         return "";
  69 }
  70
  71 #ifdef DBG_PREFS_HASH
  72 inline const char *PrintPref(void *vPref)
  73 {
  74         Preference *Pref = (Preference*) vPref;
  75         if (Pref->DeQPed != NULL)
  76                 return ChrPtr(Pref->DeQPed);
  77         else
  78                 return ChrPtr(Pref->Val);
  79 }
  80 #endif
  81
  82 void GetPrefTypes(HashList *List)
  83 {
  84         HashPos *It;
  85         long len;
  86         const char *Key;
  87         void *vSetting;
  88         void *vPrefDef;
  89         Preference *Setting;
  90         PrefDef *PrefType;
  91
  92         It = GetNewHashPos(List, 0);
  93         while (GetNextHashPos(List, It, &len, &Key, &vSetting))
  94         {
  95                 Setting = (Preference*) vSetting;
  96                 if (GetHash(PreferenceHooks, SKEY(Setting->Key), &vPrefDef) &&
  97                     (vPrefDef != NULL))
  98                 {
  99                         PrefType = (PrefDef*) vPrefDef;
 100                         Setting->Type = PrefType;
 101                         if (PrefType->OnLoad != NULL)
 102                                 PrefType->OnLoad(Setting->Val, Setting->lval);
 103                 }
 104         }
 105         DeleteHashPos(&It);
 106 }
 107
 108 void ParsePref(HashList **List, StrBuf *ReadBuf)
 109 {
 110         StrBuf *Key;
 111         Preference *Data = NULL;
 112         Preference *LastData = NULL;
 113
 114         Key = NewStrBuf();
 115         while (StrBuf_ServGetln(ReadBuf),
 116                strcmp(ChrPtr(ReadBuf), "000"))
 117         {
 118                 if ((ChrPtr(ReadBuf)[0] == ' ') &&
 119                     (Data != NULL)) {
 120                         StrBufAppendBuf(Data->Val, ReadBuf, 1);
 121                 }
 122                 else {
 123                         LastData = Data = malloc(sizeof(Preference));
 124                         memset(Data, 0, sizeof(Preference));
 125                         Data->Key = NewStrBuf();
 126                         Data->Val = NewStrBuf();
 127                         StrBufExtract_token(Data->Key, ReadBuf, 0, '|');
 128                         StrBufExtract_token(Data->Val, ReadBuf, 1, '|');
 129                         if (!IsEmptyStr(ChrPtr(Data->Key)))
 130                         {
 131                                 Put(*List,
 132                                     SKEY(Data->Key),
 133                                     Data,
 134                                     DestroyPreference);
 135                         }
 136                         else
 137                         {
 138                                 StrBufTrim(ReadBuf);
 139                                 lprintf(1, "ignoring spurious preference line: [%s]\n",
 140                                         ChrPtr(ReadBuf));
 141                                 DestroyPreference(Data);
 142                                 LastData = NULL;
 143                         }
 144                 }
 145         }
 146         GetPrefTypes(*List);
 147 }
 148
 149
 150 /*
 151  * display preferences dialog
 152  */
 153 void load_preferences(void)
 154 {
 155         StrBuf *ReadBuf;
 156         char buf[SIZ];
 157         long msgnum = 0L;
 158
 159         if (goto_config_room() != 0) return;    /* oh well. */
 160
 161         ReadBuf = NewStrBuf();
 162         serv_puts("MSGS ALL|0|1");
 163         StrBuf_ServGetln(ReadBuf);
 164         if (GetServerStatus(ReadBuf, NULL) == 8) {
 165                 serv_puts("subj|__ WebCit Preferences __");
 166                 serv_puts("000");
 167         }
 168         while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 169                 msgnum = atol(buf);
 170         }
 171
 172         if (msgnum > 0L) {
 173                 serv_printf("MSG0 %ld", msgnum);
 174                 StrBuf_ServGetln(ReadBuf);
 175                 if (GetServerStatus(ReadBuf, NULL) == 1) {
 176                         while (StrBuf_ServGetln(ReadBuf),
 177                                (strcmp(ChrPtr(ReadBuf), "text") &&
 178                                 strcmp(ChrPtr(ReadBuf), "000"))) {
 179                         }
 180                         if (!strcmp(ChrPtr(ReadBuf), "text")) {
 181                                 ParsePref(&WC->hash_prefs, ReadBuf);
 182                         }
 183                 }
 184         }
 185
 186         /* Go back to the room we're supposed to be in */
 187         serv_printf("GOTO %s", ChrPtr(WC->wc_roomname));
 188         StrBuf_ServGetln(ReadBuf);
 189         GetServerStatus(ReadBuf, NULL);
 190         FreeStrBuf(&ReadBuf);
 191 }
 192
 193 /**
 194  * \brief Goto the user's configuration room, creating it if necessary.
 195  * \return 0 on success or nonzero upon failure.
 196  */
 197 int goto_config_room(void) {
 198         char buf[SIZ];
 199
 200         serv_printf("GOTO %s", USERCONFIGROOM);
 201         serv_getln(buf, sizeof buf);
 202         if (buf[0] != '2') { /* try to create the config room if not there */
 203                 serv_printf("CRE8 1|%s|4|0", USERCONFIGROOM);
 204                 serv_getln(buf, sizeof buf);
 205                 serv_printf("GOTO %s", USERCONFIGROOM);
 206                 serv_getln(buf, sizeof buf);
 207                 if (buf[0] != '2') return(1);
 208         }
 209         return(0);
 210 }
 211
 212 void WritePrefsToServer(HashList *Hash)
 213 {
 214         long len;
 215         HashPos *HashPos;
 216         void *vPref;
 217         const char *Key;
 218         Preference *Pref;
 219         StrBuf *SubBuf = NULL;
 220
 221         Hash = WC->hash_prefs;
 222 #ifdef DBG_PREFS_HASH
 223         dbg_PrintHash(Hash, PrintPref, NULL);
 224 #endif
 225         HashPos = GetNewHashPos(Hash, 0);
 226         while (GetNextHashPos(Hash, HashPos, &len, &Key, &vPref)!=0)
 227         {
 228                 size_t nchars;
 229                 if (vPref == NULL)
 230                         continue;
 231                 Pref = (Preference*) vPref;
 232                 nchars = StrLength(Pref->Val);
 233                 if (nchars > 80){
 234                         int n = 0;
 235                         size_t offset, nchars;
 236                         if (SubBuf == NULL)
 237                                 SubBuf = NewStrBuf();
 238                         nchars = 1;
 239                         offset = 0;
 240                         while (nchars > 0) {
 241                                 if (n == 0)
 242                                         nchars = 70;
 243                                 else
 244                                         nchars = 80;
 245
 246                                 nchars = StrBufSub(SubBuf, Pref->Val, offset, nchars);
 247
 248                                 if (n == 0)
 249                                         serv_printf("%s|%s", ChrPtr(Pref->Key), ChrPtr(SubBuf));
 250                                 else
 251                                         serv_printf(" %s", ChrPtr(SubBuf));
 252
 253                                 offset += nchars;
 254                                 nchars = StrLength(Pref->Val) - offset;
 255                                 n++;
 256                         }
 257
 258                 }
 259                 else
 260                         serv_printf("%s|%s", ChrPtr(Pref->Key), ChrPtr(Pref->Val));
 261
 262         }
 263         FreeStrBuf(&SubBuf);
 264         DeleteHashPos(&HashPos);
 265 }
 266
 267 /**
 268  * \brief save the modifications
 269  */
 270 void save_preferences(void)
 271 {
 272         char buf[SIZ];
 273         long msgnum = 0L;
 274
 275         if (goto_config_room() != 0) return;    /* oh well. */
 276         serv_puts("MSGS ALL|0|1");
 277         serv_getln(buf, sizeof buf);
 278         if (buf[0] == '8') {
 279                 serv_puts("subj|__ WebCit Preferences __");
 280                 serv_puts("000");
 281         }
 282         while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 283                 msgnum = atol(buf);
 284         }
 285
 286         if (msgnum > 0L) {
 287                 serv_printf("DELE %ld", msgnum);
 288                 serv_getln(buf, sizeof buf);
 289         }
 290
 291         serv_printf("ENT0 1||0|1|__ WebCit Preferences __|");
 292         serv_getln(buf, sizeof buf);
 293         if (buf[0] == '4') {
 294
 295                 WritePrefsToServer(WC->hash_prefs);
 296                 serv_puts("");
 297                 serv_puts("000");
 298         }
 299
 300         /** Go back to the room we're supposed to be in */
 301         serv_printf("GOTO %s", ChrPtr(WC->wc_roomname));
 302         serv_getln(buf, sizeof buf);
 303 }
 304
 305 /**
 306  * \brief query the actual setting of key in the citadel database
 307  * \param key config key to query
 308  * \param keylen length of the key string
 309  * \param value StrBuf-value to the key to get
 310  * \returns found?
 311  */
 312 int get_pref_backend(const char *key, size_t keylen, Preference **Pref)
 313 {
 314         void *hash_value = NULL;
 315 #ifdef DBG_PREFS_HASH
 316         dbg_PrintHash(WC->hash_prefs, PrintPref, NULL);
 317 #endif
 318         if (GetHash(WC->hash_prefs, key, keylen, &hash_value) == 0) {
 319                 *Pref = NULL;
 320                 return 0;
 321         }
 322         else {
 323                 *Pref = (Preference*) hash_value;
 324                 return 1;
 325         }
 326 }
 327
 328 int get_PREFERENCE(const char *key, size_t keylen, StrBuf **value)
 329 {
 330         Preference *Pref;
 331         int Ret;
 332
 333         Ret = get_pref_backend(key, keylen, &Pref);
 334         if (Ret != 0)
 335                 *value = Pref->Val;
 336         else
 337                 *value = NULL;
 338         return Ret;
 339 }
 340
 341 /**
 342  * \brief       Write a key into the webcit preferences database for this user
 343  *
 344  * \params      key             key whichs value is to be modified
 345  * \param keylen length of the key string
 346  * \param       value           value to set
 347  * \param       save_to_server  1 = flush all data to the server, 0 = cache it for now
 348  */
 349 void set_preference_backend(const char *key, size_t keylen,
 350                             long lvalue,
 351                             StrBuf *value,
 352                             long lPrefType,
 353                             int save_to_server,
 354                             PrefDef *PrefType)
 355 {
 356         void *vPrefDef;
 357         Preference *Pref;
 358
 359         Pref = (Preference*) malloc(sizeof(Preference));
 360         memset(Pref, 0, sizeof(Preference));
 361         Pref->Key = NewStrBufPlain(key, keylen);
 362
 363         if ((PrefType == NULL) &&
 364             GetHash(PreferenceHooks, SKEY(Pref->Key), &vPrefDef) &&
 365             (vPrefDef != NULL))
 366                 PrefType = (PrefDef*) vPrefDef;
 367
 368         if (PrefType != NULL)
 369         {
 370                 Pref->Type = PrefType;
 371                 if (Pref->Type->Type != lPrefType)
 372                         lprintf(1, "warning: saving preference with wrong type [%s] %ld != %ld \n",
 373                                 key, Pref->Type->Type, lPrefType);
 374                 switch (Pref->Type->Type)
 375                 {
 376                 case PRF_STRING:
 377                         Pref->Val = value;
 378                         Pref->decoded = 1;
 379                         break;
 380                 case PRF_INT:
 381                         Pref->lval = lvalue;
 382                         Pref->Val = value;
 383                         if (Pref->Val == NULL)
 384                                 Pref->Val = NewStrBufPlain(NULL, 64);
 385                         StrBufPrintf(Pref->Val, "%ld", lvalue);
 386                         Pref->decoded = 1;
 387                         break;
 388                 case PRF_QP_STRING:
 389                         Pref->DeQPed = value;
 390                         Pref->Val = NewStrBufPlain(NULL, StrLength(Pref->DeQPed) * 3);
 391                         StrBufEUid_escapize(Pref->Val, Pref->DeQPed);
 392                         Pref->decoded = 1;
 393                         break;
 394                 case PRF_YESNO:
 395                         Pref->lval = lvalue;
 396                         if (lvalue)
 397                                 Pref->Val = NewStrBufPlain(HKEY("yes"));
 398                         else
 399                                 Pref->Val = NewStrBufPlain(HKEY("no"));
 400                         Pref->decoded = 1;
 401                         break;
 402                 }
 403                 if (Pref->Type->OnLoad != NULL)
 404                         Pref->Type->OnLoad(Pref->Val, Pref->lval);
 405         }
 406         else {
 407                 switch (lPrefType)
 408                 {
 409                 case PRF_STRING:
 410                         Pref->Val = value;
 411                         Pref->decoded = 1;
 412                         break;
 413                 case PRF_INT:
 414                         Pref->lval = lvalue;
 415                         Pref->Val = value;
 416                         if (Pref->Val == NULL)
 417                                 Pref->Val = NewStrBufPlain(NULL, 64);
 418                         StrBufPrintf(Pref->Val, "%ld", lvalue);
 419                         Pref->decoded = 1;
 420                         break;
 421                 case PRF_QP_STRING:
 422                         Pref->DeQPed = value;
 423                         Pref->Val = NewStrBufPlain(NULL, StrLength(Pref->DeQPed) * 3);
 424                         StrBufEUid_escapize(Pref->Val, Pref->DeQPed);
 425                         Pref->decoded = 1;
 426                         break;
 427                 case PRF_YESNO:
 428                         Pref->lval = lvalue;
 429                         if (lvalue)
 430                                 Pref->Val = NewStrBufPlain(HKEY("yes"));
 431                         else
 432                                 Pref->Val = NewStrBufPlain(HKEY("no"));
 433                         Pref->decoded = 1;
 434                         break;
 435                 }
 436         }
 437         Put(WC->hash_prefs, key, keylen, Pref, DestroyPreference);
 438
 439         if (save_to_server) WC->SavePrefsToServer = 1;
 440 }
 441
 442 void set_PREFERENCE(const char *key, size_t keylen, StrBuf *value, int save_to_server)
 443 {
 444         set_preference_backend(key, keylen, 0, value, PRF_STRING, save_to_server, NULL);
 445 }
 446
 447 int get_PREF_LONG(const char *key, size_t keylen, long *value, long Default)
 448 {
 449         Preference *Pref;
 450         int Ret;
 451
 452         Ret = get_pref_backend(key, keylen, &Pref);
 453         if (Ret == 0) {
 454                 *value = Default;
 455                 return 0;
 456         }
 457
 458         if (Pref->decoded)
 459                 *value = Pref->lval;
 460         else {
 461                 *value = Pref->lval = atol(ChrPtr(Pref->Val));
 462                 Pref->decoded = 1;
 463         }
 464         return Ret;
 465 }
 466
 467
 468 void set_PREF_LONG(const char *key, size_t keylen, long value, int save_to_server)
 469 {
 470         set_preference_backend(key, keylen, value, NULL, PRF_INT, save_to_server, NULL);
 471 }
 472
 473 int get_PREF_YESNO(const char *key, size_t keylen, int *value, int Default)
 474 {
 475         Preference *Pref;
 476         int Ret;
 477
 478         Ret = get_pref_backend(key, keylen, &Pref);
 479         if (Ret == 0) {
 480                 *value = Default;
 481                 return 0;
 482         }
 483
 484         if (Pref->decoded)
 485                 *value = Pref->lval;
 486         else {
 487                 *value = Pref->lval = strcmp(ChrPtr(Pref->Val), "yes") == 0;
 488                 Pref->decoded = 1;
 489         }
 490         return Ret;
 491 }
 492
 493 void set_PREF_YESNO(const char *key, size_t keylen, long value, int save_to_server)
 494 {
 495         set_preference_backend(key, keylen, value, NULL, PRF_YESNO, save_to_server, NULL);
 496 }
 497
 498 int get_room_prefs_backend(const char *key, size_t keylen,
 499                            Preference **Pref)
 500 {
 501         StrBuf *pref_name;
 502         int Ret;
 503
 504         pref_name = NewStrBufPlain (HKEY("ROOM:"));
 505         StrBufAppendBuf(pref_name, WC->wc_roomname, 0);
 506         StrBufAppendBufPlain(pref_name, HKEY(":"), 0);
 507         StrBufAppendBufPlain(pref_name, key, keylen, 0);
 508         Ret = get_pref_backend(SKEY(pref_name), Pref);
 509         FreeStrBuf(&pref_name);
 510
 511         return Ret;
 512 }
 513
 514 const StrBuf *get_X_PREFS(const char *key, size_t keylen,
 515                           const char *xkey, size_t xkeylen)
 516 {
 517         int ret;
 518         StrBuf *pref_name;
 519         Preference *Prf;
 520
 521         pref_name = NewStrBufPlain (HKEY("XPREF:"));
 522         StrBufAppendBufPlain(pref_name, xkey, xkeylen, 0);
 523         StrBufAppendBufPlain(pref_name, HKEY(":"), 0);
 524         StrBufAppendBufPlain(pref_name, key, keylen, 0);
 525
 526         ret = get_pref_backend(SKEY(pref_name), &Prf);
 527         FreeStrBuf(&pref_name);
 528
 529         if (ret)
 530                 return Prf->Val;
 531         else return NULL;
 532 }
 533
 534 void set_X_PREFS(const char *key, size_t keylen, const char *xkey, size_t xkeylen, StrBuf *value, int save_to_server)
 535 {
 536         StrBuf *pref_name;
 537
 538         pref_name = NewStrBufPlain (HKEY("XPREF:"));
 539         StrBufAppendBufPlain(pref_name, xkey, xkeylen, 0);
 540         StrBufAppendBufPlain(pref_name, HKEY(":"), 0);
 541         StrBufAppendBufPlain(pref_name, key, keylen, 0);
 542
 543         set_preference_backend(SKEY(pref_name), 0, value, PRF_STRING, save_to_server, NULL);
 544         FreeStrBuf(&pref_name);
 545 }
 546
 547
 548 StrBuf *get_ROOM_PREFS(const char *key, size_t keylen)
 549 {
 550         Preference *Pref;
 551         int Ret;
 552
 553         Ret = get_room_prefs_backend(key, keylen, &Pref);
 554
 555         if (Ret == 0) {
 556                 return NULL;
 557         }
 558         else
 559                 return Pref->Val;
 560 }
 561
 562 void set_ROOM_PREFS(const char *key, size_t keylen, StrBuf *value, int save_to_server)
 563 {
 564         StrBuf *pref_name;
 565
 566         pref_name = NewStrBufPlain (HKEY("ROOM:"));
 567         StrBufAppendBuf(pref_name, WC->wc_roomname, 0);
 568         StrBufAppendBufPlain(pref_name, HKEY(":"), 0);
 569         StrBufAppendBufPlain(pref_name, key, keylen, 0);
 570         set_preference_backend(SKEY(pref_name), 0, value, PRF_STRING, save_to_server, NULL);
 571         FreeStrBuf(&pref_name);
 572 }
 573
 574
 575 void GetPreferences(HashList *Setting)
 576 {
 577         wcsession *WCC = WC;
 578         HashPos *It;
 579         long len;
 580         const char *Key;
 581         void *vSetting;
 582         PrefDef *PrefType;
 583         StrBuf *Buf;
 584         long lval;
 585         HashList *Tmp;
 586
 587         Tmp = WCC->hash_prefs;
 588         WCC->hash_prefs = Setting;
 589
 590         It = GetNewHashPos(PreferenceHooks, 0);
 591         while (GetNextHashPos(PreferenceHooks, It, &len, &Key, &vSetting)) {
 592                 PrefType = (PrefDef*) vSetting;
 593
 594                 if (!HaveBstr(SKEY(PrefType->Setting)))
 595                         continue;
 596                 switch (PrefType->Type) {
 597                 case PRF_STRING:
 598                         Buf = NewStrBufDup(SBstr(SKEY(PrefType->Setting)));
 599                         set_preference_backend(SKEY(PrefType->Setting),
 600                                                0,
 601                                                Buf,
 602                                                PRF_STRING,
 603                                                1,
 604                                                PrefType);
 605                         break;
 606                 case PRF_INT:
 607                         lval = LBstr(SKEY(PrefType->Setting));
 608                         set_preference_backend(SKEY(PrefType->Setting),
 609                                                lval,
 610                                                NULL,
 611                                                PRF_INT,
 612                                                1,
 613                                                PrefType);
 614                         break;
 615                 case PRF_QP_STRING:
 616                         Buf = NewStrBufDup(SBstr(SKEY(PrefType->Setting)));
 617                         set_preference_backend(SKEY(PrefType->Setting),
 618                                                0,
 619                                                Buf,
 620                                                PRF_QP_STRING,
 621                                                1,
 622                                                PrefType);
 623                         break;
 624                 case PRF_YESNO:
 625                         lval = YesBstr(SKEY(PrefType->Setting));
 626                         set_preference_backend(SKEY(PrefType->Setting),
 627                                                lval,
 628                                                NULL,
 629                                                PRF_YESNO,
 630                                                1,
 631                                                PrefType);
 632                         break;
 633                 }
 634         }
 635         WCC->hash_prefs = Tmp;
 636 }
 637
 638
 639 /**
 640  * \brief Commit new preferences and settings
 641  */
 642 void set_preferences(void)
 643 {
 644         if (!havebstr("change_button")) {
 645                 safestrncpy(WC->ImportantMessage,
 646                             _("Cancelled.  No settings were changed."),
 647                             sizeof WC->ImportantMessage);
 648                 display_main_menu();
 649                 return;
 650         }
 651         GetPreferences(WC->hash_prefs);
 652         display_main_menu();
 653 }
 654
 655
 656 void tmplput_CFG_Value(StrBuf *Target, WCTemplputParams *TP)
 657 {
 658         Preference *Pref;
 659         if (get_pref_backend(TKEY(0), &Pref))
 660         {
 661                 if (Pref->Type == NULL) {
 662                         StrBufAppendTemplate(Target, TP, Pref->Val, 1);
 663                 }
 664                 switch (Pref->Type->Type)
 665                 {
 666                 case PRF_STRING:
 667                         StrBufAppendTemplate(Target, TP, Pref->Val, 1);
 668                         break;
 669                 case PRF_INT:
 670                         if (Pref->decoded != 1) {
 671                                 if (Pref->Val == NULL)
 672                                         Pref->Val = NewStrBufPlain(NULL, 64);
 673                                 StrBufPrintf(Pref->Val, "%ld", Pref->lval);
 674                                 Pref->decoded = 1;
 675                         }
 676                         StrBufAppendTemplate(Target, TP, Pref->Val, 1);
 677                         break;
 678                 case PRF_QP_STRING:
 679                         if (Pref->decoded != 1) {
 680                                 if (Pref->DeQPed == NULL)
 681                                         Pref->DeQPed = NewStrBufPlain(NULL, StrLength(Pref->Val));
 682
 683                                 StrBufEUid_unescapize(Pref->DeQPed, Pref->Val);
 684                                 Pref->decoded = 1;
 685                         }
 686                         StrBufAppendTemplate(Target, TP, Pref->DeQPed, 1);
 687                         break;
 688                 case PRF_YESNO:
 689                         if (Pref->decoded != 1) {
 690                                 Pref->lval = strcmp(ChrPtr(Pref->Val), "yes") == 0;
 691                                 Pref->decoded = 1;
 692                         }
 693                         StrBufAppendTemplate(Target, TP, Pref->Val, 1);
 694                         break;
 695                 }
 696         }
 697 }
 698
 699 void tmplput_CFG_Descr(StrBuf *Target, WCTemplputParams *TP)
 700 {
 701         const char *SettingStr;
 702         SettingStr = PrefGetLocalStr(TKEY(0));
 703         if (SettingStr != NULL)
 704                 StrBufAppendBufPlain(Target, SettingStr, -1, 0);
 705 }
 706 void tmplput_CFG_RoomValue(StrBuf *Target, WCTemplputParams *TP)
 707 {
 708         StrBuf *pref = get_ROOM_PREFS(TKEY(0));
 709         if (pref != NULL)
 710                 StrBufAppendBuf(Target, pref, 0);
 711 }
 712 int ConditionalHasRoomPreference(StrBuf *Target, WCTemplputParams *TP)
 713 {
 714         if (get_ROOM_PREFS(TP->Tokens->Params[0]->Start,
 715                            TP->Tokens->Params[0]->len) != NULL)
 716                 return 1;
 717
 718         return 0;
 719 }
 720 void CfgZoneTempl(StrBuf *TemplBuffer, WCTemplputParams *TP)
 721 {
 722         StrBuf *Zone = (StrBuf*) CTX;
 723
 724         SVPutBuf("ZONENAME", Zone, 1);
 725 }
 726
 727 int ConditionalPreference(StrBuf *Target, WCTemplputParams *TP)
 728 {
 729         StrBuf *Pref;
 730
 731         if (!get_PREFERENCE(TKEY(2), &Pref))
 732                 return 0;
 733
 734         if (TP->Tokens->nParameters == 3) {
 735                 return 1;
 736         }
 737         else if (TP->Tokens->Params[3]->Type == TYPE_STR)
 738                 return ((TP->Tokens->Params[3]->len == StrLength(Pref)) &&
 739                         (strcmp(TP->Tokens->Params[3]->Start, ChrPtr(Pref)) == 0));
 740         else
 741                 return (StrTol(Pref) == TP->Tokens->Params[3]->lvalue);
 742 }
 743
 744 int ConditionalHasPreference(StrBuf *Target, WCTemplputParams *TP)
 745 {
 746         StrBuf *Pref;
 747
 748         if (!get_PREFERENCE(TKEY(2), &Pref) ||
 749             (Pref == NULL))
 750                 return 0;
 751         else
 752                 return 1;
 753 }
 754
 755
 756 /********************************************************************************
 757  *                 preferences stored discrete in citserver
 758  ********************************************************************************/
 759 HashList *GetGVEAHash(StrBuf *Target, WCTemplputParams *TP)
 760 {
 761         StrBuf *Rcp;
 762         HashList *List = NULL;
 763         int Done = 0;
 764         int i, n = 1;
 765         char N[64];
 766
 767         Rcp = NewStrBuf();
 768         serv_puts("GVEA");
 769         StrBuf_ServGetln(Rcp);
 770         if (GetServerStatus(Rcp, NULL) == 1) {
 771                 FlushStrBuf(Rcp);
 772                 List = NewHash(1, NULL);
 773                 while (!Done && (StrBuf_ServGetln(Rcp)>=0)) {
 774                         if ( (StrLength(Rcp)==3) &&
 775                              !strcmp(ChrPtr(Rcp), "000"))
 776                         {
 777                                 Done = 1;
 778                         }
 779                         else {
 780                                 i = snprintf(N, sizeof(N), "%d", n);
 781                                 StrBufTrim(Rcp);
 782                                 Put(List, N, i, Rcp, HFreeStrBuf);
 783                                 Rcp = NewStrBuf();
 784                         }
 785                         n++;
 786                 }
 787         }
 788         FreeStrBuf(&Rcp);
 789         return List;
 790 }
 791 void DeleteGVEAHash(HashList **KillMe)
 792 {
 793         DeleteHash(KillMe);
 794 }
 795
 796 HashList *GetGVSNHash(StrBuf *Target, WCTemplputParams *TP)
 797 {
 798         StrBuf *Rcp;
 799         HashList *List = NULL;
 800         int Done = 0;
 801         int i, n = 1;
 802         char N[64];
 803
 804         Rcp = NewStrBuf();
 805         serv_puts("GVSN");
 806         StrBuf_ServGetln(Rcp);
 807         if (GetServerStatus(Rcp, NULL) == 1) {
 808                 FlushStrBuf(Rcp);
 809                 List = NewHash(1, NULL);
 810                 while (!Done && (StrBuf_ServGetln(Rcp)>=0)) {
 811                         if ( (StrLength(Rcp)==3) &&
 812                              !strcmp(ChrPtr(Rcp), "000"))
 813                         {
 814                                 Done = 1;
 815                         }
 816                         else {
 817                                 i = snprintf(N, sizeof(N), "%d", n);
 818                                 StrBufTrim(Rcp);
 819                                 Put(List, N, i, Rcp, HFreeStrBuf);
 820                                 Rcp = NewStrBuf();
 821                         }
 822                         n++;
 823                 }
 824         }
 825         FreeStrBuf(&Rcp);
 826         return List;
 827 }
 828 void DeleteGVSNHash(HashList **KillMe)
 829 {
 830         DeleteHash(KillMe);
 831 }
 832
 833
 834
 835
 836 /*
 837  * Offer to make any page the user's "start page."
 838  */
 839 void offer_start_page(StrBuf *Target, WCTemplputParams *TP)
 840 {
 841         wprintf("<a href=\"change_start_page?startpage=");
 842         urlescputs(ChrPtr(WC->this_page));
 843         wprintf("\">");
 844         wprintf(_("Make this my start page"));
 845         wprintf("</a>");
 846 #ifdef TECH_PREVIEW
 847         wprintf("<br/><a href=\"rss?room=");
 848         urlescputs(ChrPtr(WC->wc_roomname));
 849         wprintf("\" title=\"RSS 2.0 feed for ");
 850         escputs(ChrPtr(WC->wc_roomname));
 851         wprintf("\"><img alt=\"RSS\" border=\"0\" src=\"static/xml_button.gif\"/></a>\n");
 852 #endif
 853 }
 854
 855
 856 /*
 857  * Change the user's start page
 858  */
 859 void change_start_page(void)
 860 {
 861         if (!havebstr("startpage")) {
 862                 set_preference_backend(HKEY("startpage"),
 863                                        0,
 864                                        NewStrBufPlain(HKEY("")),
 865                                        PRF_STRING,
 866                                        1,
 867                                        NULL);
 868                 safestrncpy(WC->ImportantMessage,
 869                             _("You no longer have a start page selected."),
 870                             sizeof( WC->ImportantMessage));
 871                 display_main_menu();
 872                 return;
 873         }
 874
 875         set_preference_backend(HKEY("startpage"),
 876                                0,
 877                                NewStrBufDup(sbstr("startpage")),
 878                                PRF_STRING,
 879                                1,
 880                                NULL);
 881
 882         output_headers(1, 1, 0, 0, 0, 0);
 883         do_template("newstartpage", NULL);
 884         wDumpContent(1);
 885 }
 886
 887
 888 void
 889 InitModule_PREFERENCES
 890 (void)
 891 {
 892         WebcitAddUrlHandler(HKEY("set_preferences"), set_preferences, 0);
 893         WebcitAddUrlHandler(HKEY("change_start_page"), change_start_page, 0);
 894
 895
 896         RegisterNamespace("OFFERSTARTPAGE", 0, 0, offer_start_page, CTX_NONE);
 897         RegisterNamespace("PREF:ROOM:VALUE", 1, 2, tmplput_CFG_RoomValue,  CTX_NONE);
 898         RegisterNamespace("PREF:VALUE", 1, 2, tmplput_CFG_Value, CTX_NONE);
 899         RegisterNamespace("PREF:DESCR", 1, 1, tmplput_CFG_Descr, CTX_NONE);
 900         RegisterIterator("PREF:ZONE", 0, ZoneHash, NULL, CfgZoneTempl, NULL, CTX_PREF, CTX_NONE, IT_NOFLAG);
 901
 902         RegisterConditional(HKEY("COND:PREF"), 4, ConditionalPreference, CTX_NONE);
 903         RegisterConditional(HKEY("COND:PREF:SET"), 4, ConditionalHasPreference, CTX_NONE);
 904         RegisterConditional(HKEY("COND:ROOM:SET"), 4, ConditionalHasRoomPreference, CTX_NONE);
 905
 906         RegisterIterator("PREF:VALID:EMAIL:ADDR", 0, NULL,
 907                          GetGVEAHash, NULL, DeleteGVEAHash, CTX_STRBUF, CTX_NONE, IT_NOFLAG);
 908         RegisterIterator("PREF:VALID:EMAIL:NAME", 0, NULL,
 909                          GetGVSNHash, NULL, DeleteGVSNHash, CTX_STRBUF, CTX_NONE, IT_NOFLAG);
 910
 911 }
 912 /*@}*/