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