database.c

   1
   2 /*
   3  * $Id$
   4  *
   5  * by JH <jheinonen@users.sourceforge.net>
   6  *
   7  * Copyright (C) Jaakko Heinonen
   8  */
   9
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <unistd.h>
  14 #include <fcntl.h>
  15 #include "abook.h"
  16 #include "database.h"
  17 #include "list.h"
  18 #include "misc.h"
  19 #include "options.h"
  20 #include "filter.h"
  21 #ifdef HAVE_CONFIG_H
  22 #       include "config.h"
  23 #endif
  24
  25 static void     free_item(int i);
  26
  27
  28 list_item *database = NULL;
  29
  30 int items = 0;
  31
  32 #define INITIAL_LIST_CAPACITY   30
  33
  34 int list_capacity = 0;
  35
  36 extern int first_list_item;
  37 extern int curitem;
  38 extern char *selected;
  39
  40 extern char *datafile;
  41 extern char *rcfile;
  42
  43 /*
  44  * field definitions
  45  */
  46
  47 #include "edit.h"
  48
  49 /*
  50  * notes about adding fields:
  51  *      - do not change any fields in TAB_CONTACT
  52  *      - do not add fields to contact tab
  53  *      - 6 fields per tab is maximum
  54  *      - reorganize the field numbers in database.h
  55  */
  56
  57 struct abook_field abook_fields[ITEM_FIELDS] = {
  58         {"Name",        "name",         TAB_CONTACT},/* NAME */
  59         {"E-mails",     "email",        TAB_CONTACT},/* EMAIL */
  60         {"Address",     "address",      TAB_ADDRESS},/* ADDRESS */
  61         {"Address2",    "address2",     TAB_ADDRESS},/* ADDRESS2 */
  62         {"City",        "city",         TAB_ADDRESS},/* CITY */
  63         {"State/Province","state",      TAB_ADDRESS},/* STATE */
  64         {"ZIP/Postal Code","zip",       TAB_ADDRESS},/* ZIP */
  65         {"Country",     "country",      TAB_ADDRESS},/* COUNTRY */
  66         {"Home Phone",  "phone",        TAB_PHONE},/* PHONE */
  67         {"Work Phone",  "workphone",    TAB_PHONE},/* WORKPHONE */
  68         {"Fax",         "fax",          TAB_PHONE},/* FAX */
  69         {"Mobile",      "mobile",       TAB_PHONE},/* MOBILEPHONE */
  70         {"Nickname/Alias", "nick",      TAB_OTHER},/* NICK */
  71         {"URL",         "url",          TAB_OTHER},/* URL */
  72         {"Notes",       "notes",        TAB_OTHER},/* NOTES */
  73 };
  74
  75
  76 int
  77 parse_database(FILE *in)
  78 {
  79         char *line = NULL;
  80         char *tmp;
  81         int sec=0, i;
  82         list_item item;
  83
  84         memset(&item, 0, sizeof(item));
  85
  86         for(;;) {
  87                 line = getaline(in);
  88                 if( feof(in) ) {
  89                         if( item[NAME] && sec )
  90                                 add_item2database(item);
  91                         else
  92                                 free_list_item(item);
  93                         break;
  94                 }
  95
  96                 if( !*line || *line == '\n' || *line == '#' ) {
  97                         free(line);
  98                         continue;
  99                 } else if( *line == '[' ) {
 100                         if( item[NAME] && sec )
 101                                 add_item2database(item);
 102                         else
 103                                 free_list_item(item);
 104                         memset(&item, 0, sizeof(item));
 105                         sec = 1;
 106                         if ( !(tmp = strchr(line, ']')))
 107                                 sec = 0; /*incorrect section lines are skipped*/
 108                 } else if((tmp = strchr(line, '=') ) && sec ) {
 109                         *tmp++ = '\0';
 110                         for(i=0; i<ITEM_FIELDS; i++)
 111                                 if( !strcmp(abook_fields[i].key, line) ) {
 112                                         item[i] = strdup(tmp);
 113                                         goto next;
 114                                 }
 115                 }
 116 next:
 117                 free(line);
 118         }
 119
 120         free(line);
 121         return 0;
 122 }
 123
 124
 125
 126 int
 127 load_database(char *filename)
 128 {
 129         FILE *in;
 130
 131         if( database != NULL )
 132                 close_database();
 133
 134         if ( (in = abook_fopen(filename, "r")) == NULL )
 135                 return -1;
 136
 137         parse_database(in);
 138
 139         return (items == 0) ? 2 : 0;
 140 }
 141
 142 int
 143 write_database(FILE *out, struct db_enumerator e)
 144 {
 145         int j;
 146         int i = 0;
 147
 148         fprintf(out,
 149                 "# abook addressbook file\n\n"
 150                 "[format]\n"
 151                 "program=" PACKAGE "\n"
 152                 "version=" VERSION "\n"
 153                 "\n\n"
 154         );
 155
 156         db_enumerate_items(e) {
 157                 fprintf(out, "[%d]\n", i);
 158                 for(j = 0; j < ITEM_FIELDS; j++) {
 159                         if( database[e.item][j] != NULL &&
 160                                         *database[e.item][j] )
 161                                 fprintf(out, "%s=%s\n",
 162                                         abook_fields[j].key,
 163                                         database[e.item][j]
 164                                         );
 165                 }
 166                 fputc('\n', out);
 167                 i++;
 168         }
 169
 170         return 0;
 171 }
 172
 173 int
 174 save_database()
 175 {
 176         FILE *out;
 177         struct db_enumerator e = init_db_enumerator(ENUM_ALL);
 178
 179         if( (out = abook_fopen(datafile, "w")) == NULL )
 180                 return -1;
 181
 182         if( list_is_empty() ) {
 183                 fclose(out);
 184                 unlink(datafile);
 185                 return 1;
 186         }
 187
 188
 189         write_database(out, e);
 190
 191         fclose(out);
 192
 193         return 0;
 194 }
 195
 196 static void
 197 free_item(int item)
 198 {
 199         free_list_item(database[item]);
 200 }
 201
 202 void
 203 free_list_item(list_item item)
 204 {
 205         int i;
 206
 207         for(i=0; i<ITEM_FIELDS; i++)
 208                 my_free(item[i]);
 209 }
 210
 211 void
 212 close_database()
 213 {
 214         int i;
 215
 216         for(i=0; i < items; i++)
 217                 free_item(i);
 218
 219         free(database);
 220         free(selected);
 221
 222         database = NULL;
 223         selected = NULL;
 224
 225         items = 0;
 226         first_list_item = curitem = -1;
 227         list_capacity = 0;
 228 }
 229
 230 #define _MAX_FIELD_LEN(X)       (X == EMAIL ? MAX_EMAILSTR_LEN:MAX_FIELD_LEN)
 231
 232 static void
 233 validate_item(list_item item)
 234 {
 235         int i;
 236         char *tmp;
 237
 238         if(item[EMAIL] == NULL)
 239                 item[EMAIL] = strdup("");
 240
 241         for(i=0; i<ITEM_FIELDS; i++)
 242                 if( item[i] && ((int)strlen(item[i]) > _MAX_FIELD_LEN(i) ) ) {
 243                         tmp = item[i];
 244                         item[i][_MAX_FIELD_LEN(i)-1] = 0;
 245                         item[i] = strdup(item[i]);
 246                         free(tmp);
 247                 }
 248 }
 249
 250
 251 static void
 252 adjust_list_capacity()
 253 {
 254         if(list_capacity < 1)
 255                 list_capacity = INITIAL_LIST_CAPACITY;
 256         else if(items >= list_capacity)
 257                 list_capacity *= 2;
 258         else if(list_capacity / 2 > items)
 259                 list_capacity /= 2;
 260         else
 261                 return;
 262
 263         database = (list_item *)abook_realloc(database,
 264                         sizeof(list_item) * list_capacity);
 265         selected = (char *)abook_realloc(selected, list_capacity);
 266 }
 267
 268 int
 269 add_item2database(list_item item)
 270 {
 271         if( item[NAME] == NULL || ! *item[NAME] ) {
 272                 free_list_item(item);
 273                 return 1;
 274         }
 275
 276         if( ++items > list_capacity)
 277                 adjust_list_capacity();
 278
 279         validate_item(item);
 280
 281         selected[LAST_ITEM] = 0;
 282         itemcpy(database[LAST_ITEM], item);
 283
 284         return 0;
 285 }
 286
 287 void
 288 remove_selected_items()
 289 {
 290         int i, j;
 291
 292         if( list_is_empty() )
 293                 return;
 294
 295         if( ! selected_items() )
 296                 selected[ curitem ] = 1;
 297
 298         for( j = LAST_ITEM; j >= 0; j-- ) {
 299                 if( selected[j] ) {
 300                         free_item(j); /* added for .4 data_s_ */
 301                         for( i = j; i < LAST_ITEM; i++ ) {
 302                                 itemcpy(database[ i ], database[ i + 1 ]);
 303                                 selected[ i ] = selected[ i + 1 ];
 304                         }
 305                         items--;
 306                 }
 307         }
 308
 309         if( curitem > LAST_ITEM && items > 0 )
 310                 curitem = LAST_ITEM;
 311
 312
 313         adjust_list_capacity();
 314
 315         select_none();
 316 }
 317
 318 char *
 319 get_surname(char *s)
 320 {
 321         int i, a;
 322         int len = strlen(s);
 323         char *name = strdup(s);
 324
 325         for( a = 0, i = len - 1; i >= 0; i--, a++ ) {
 326                 name[a] = s[i];
 327                 if(name[a] == ' ')
 328                         break;
 329         }
 330
 331         name[ a ] = 0;
 332
 333         revstr(name);
 334
 335         return name;
 336 }
 337
 338 static int
 339 surnamecmp(const void *i1, const void *i2)
 340 {
 341         int ret;
 342         list_item a,b;
 343         char *s1, *s2;
 344
 345         itemcpy(a, i1);
 346         itemcpy(b, i2);
 347
 348         s1 = get_surname(a[NAME]);
 349         s2 = get_surname(b[NAME]);
 350
 351         if( !(ret = safe_strcoll(s1, s2)) )
 352                 ret = safe_strcoll(a[NAME], b[NAME]);
 353
 354         free(s1);
 355         free(s2);
 356
 357         return ret;
 358 }
 359
 360 static int
 361 namecmp(const void *i1, const void *i2)
 362 {
 363         list_item a, b;
 364
 365         itemcpy(a, i1);
 366         itemcpy(b, i2);
 367
 368         return safe_strcoll( a[NAME], b[NAME] );
 369 }
 370
 371 void
 372 sort_database()
 373 {
 374         select_none();
 375
 376         qsort((void *)database, items, sizeof(list_item), namecmp);
 377
 378         refresh_screen();
 379 }
 380
 381 void
 382 sort_surname()
 383 {
 384         select_none();
 385
 386         qsort((void *)database, items, sizeof(list_item), surnamecmp);
 387
 388         refresh_screen();
 389 }
 390
 391 int
 392 find_item(char *str, int start, int search_fields[])
 393 {
 394         int i;
 395         char *findstr = NULL;
 396         char *tmp = NULL;
 397         int ret = -1; /* not found */
 398         struct db_enumerator e = init_db_enumerator(ENUM_ALL);
 399
 400         if(list_is_empty() || !is_valid_item(start))
 401                 return -2; /* error */
 402
 403         findstr = strdup(str);
 404         findstr = strupper(findstr);
 405
 406         e.item = start - 1; /* must be "real start" - 1 */
 407         db_enumerate_items(e) {
 408                 for( i = 0; search_fields[i] >= 0; i++ ) {
 409                         tmp = safe_strdup(database[e.item][search_fields[i]]);
 410                         if( tmp && strstr(strupper(tmp), findstr) ) {
 411                                 ret = e.item;
 412                                 goto out;
 413                         }
 414                         my_free(tmp);
 415                 }
 416         }
 417
 418 out:
 419         free(findstr);
 420         free(tmp);
 421         return ret;
 422 }
 423
 424
 425 int
 426 is_selected(int item)
 427 {
 428         return selected[item];
 429 }
 430
 431 int
 432 is_valid_item(int item)
 433 {
 434         return item <= LAST_ITEM && item >= 0;
 435 }
 436
 437 int
 438 real_db_enumerate_items(struct db_enumerator e)
 439 {
 440         int item = max(0, e.item + 1);
 441         int i;
 442
 443         switch(e.mode) {
 444 #ifdef DEBUG
 445                 case ENUM_ALL:
 446                         break;
 447 #endif
 448                 case ENUM_SELECTED:
 449                         for(i = item; i < items; i++) {
 450                                 if(is_selected(i)) {
 451                                         item = i;
 452                                         goto out;
 453                                 }
 454                         }
 455                         return -1;
 456 #ifdef DEBUG
 457                 default:
 458                         fprintf(stderr, "real_db_enumerate_items() "
 459                                         "BUG: unknown db_enumerator mode: %d\n",
 460                                         e.mode);
 461                         break;
 462 #endif
 463         }
 464 out:
 465         return (item > LAST_ITEM || item < 0) ? -1 : item;
 466 }
 467
 468 struct db_enumerator
 469 init_db_enumerator(int mode)
 470 {
 471         struct db_enumerator e;
 472
 473         e.item = -1; /* important - means "start from beginning" */
 474         e.mode = mode;
 475
 476         return e;
 477 }