src/parser.c

   1 /*
   2  * Copyright 2013  Samsung Electronics Co., Ltd
   3  *
   4  * Licensed under the Flora License, Version 1.1 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://floralicense.org/license/
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <stdio.h>
  18 #include <stdlib.h> /* strtod */
  19 #include <errno.h>
  20 #include <ctype.h> /* isspace */
  21
  22 #include <Eina.h>
  23 #include <dlog.h>
  24
  25 #include <livebox-service.h>
  26 #include <livebox-errno.h>
  27
  28 #include "util.h"
  29 #include "debug.h"
  30 #include "conf.h"
  31 #include "parser.h"
  32
  33 static Eina_List *s_list;
  34 int errno;
  35
  36 struct parser {
  37         char *filename;
  38         double period;
  39         int timeout;
  40         int network;
  41         char *auto_launch;
  42         unsigned int size;
  43         unsigned int pd_width;
  44         unsigned int pd_height;
  45         char *group;
  46         int secured;
  47
  48         char *pd_path;
  49         char *pd_group;
  50
  51         char *lb_path;
  52         char *lb_group;
  53         int pinup;
  54         int text_pd;
  55         int text_lb;
  56         int buffer_pd;
  57         int buffer_lb;
  58
  59         char *abi;
  60
  61         char *script;
  62 };
  63
  64 HAPI double parser_period(struct parser *handle)
  65 {
  66         return handle->period;
  67 }
  68
  69 HAPI int parser_network(struct parser *handle)
  70 {
  71         return handle->network;
  72 }
  73
  74 HAPI int parser_timeout(struct parser *handle)
  75 {
  76         return handle->timeout;
  77 }
  78
  79 HAPI const char *parser_auto_launch(struct parser *handle)
  80 {
  81         return handle->auto_launch;
  82 }
  83
  84 HAPI const char *parser_script(struct parser *handle)
  85 {
  86         return handle->script;
  87 }
  88
  89 HAPI const char *parser_abi(struct parser *handle)
  90 {
  91         return handle->abi;
  92 }
  93
  94 HAPI unsigned int parser_size(struct parser *handle)
  95 {
  96         return handle->size;
  97 }
  98
  99 HAPI const char *parser_lb_path(struct parser *handle)
 100 {
 101         return handle->lb_path;
 102 }
 103
 104 HAPI const char *parser_lb_group(struct parser *handle)
 105 {
 106         return handle->lb_group;
 107 }
 108
 109 HAPI const char *parser_pd_path(struct parser *handle)
 110 {
 111         return handle->pd_path;
 112 }
 113
 114 HAPI const char *parser_pd_group(struct parser *handle)
 115 {
 116         return handle->pd_group;
 117 }
 118
 119 HAPI const char *parser_group_str(struct parser *handle)
 120 {
 121         return handle->group;
 122 }
 123
 124 HAPI int parser_secured(struct parser *handle)
 125 {
 126         return handle->secured;
 127 }
 128
 129 HAPI void parser_get_pdsize(struct parser *handle, unsigned int *width, unsigned int *height)
 130 {
 131         *width = handle->pd_width;
 132         *height = handle->pd_height;
 133 }
 134
 135 HAPI int parser_pinup(struct parser *handle)
 136 {
 137         return handle->pinup;
 138 }
 139
 140 HAPI int parser_text_lb(struct parser *handle)
 141 {
 142         return handle->text_lb;
 143 }
 144
 145 HAPI int parser_text_pd(struct parser *handle)
 146 {
 147         return handle->text_pd;
 148 }
 149
 150 HAPI int parser_buffer_lb(struct parser *handle)
 151 {
 152         return handle->buffer_lb;
 153 }
 154
 155 HAPI int parser_buffer_pd(struct parser *handle)
 156 {
 157         return handle->buffer_pd;
 158 }
 159
 160 HAPI int parser_find(const char *pkgname)
 161 {
 162         Eina_List *l;
 163         struct parser *item;
 164         char *filename;
 165         int len;
 166         int ret;
 167
 168         len = strlen(pkgname) * 2 + strlen(CONF_PATH);
 169
 170         filename = malloc(len);
 171         if (!filename)
 172                 return LB_STATUS_SUCCESS;
 173
 174         ret = snprintf(filename, len, CONF_PATH, pkgname, pkgname);
 175         if (ret < 0) {
 176                 DbgFree(filename);
 177                 return LB_STATUS_ERROR_FAULT;
 178         }
 179
 180         DbgPrint("Conf file %s for package %s\n", filename, pkgname);
 181
 182         EINA_LIST_FOREACH(s_list, l, item) {
 183                 if (!strcmp(item->filename, filename)) {
 184                         DbgFree(filename);
 185                         return (int)item;
 186                 }
 187         }
 188
 189         DbgFree(filename);
 190         return LB_STATUS_SUCCESS;
 191 }
 192
 193 static inline int parse_size(const char *buffer, unsigned int *size)
 194 {
 195         register int i;
 196         int w;
 197         int h;
 198
 199         enum {
 200                 START,
 201                 WIDTH,
 202                 DELIM,
 203                 HEIGHT,
 204                 ERROR,
 205                 STOP,
 206                 END
 207         } state;
 208
 209         *size = 0;
 210         state = START;
 211         i = 0;
 212         w = 0;
 213         h = 0;
 214
 215         while (state != ERROR && state != END) {
 216                 switch (state) {
 217                 case START:
 218                         switch (buffer[i]) {
 219                         case '1'...'9':
 220                                 state = WIDTH;
 221                                 break;
 222                         case ' ':
 223                         case '\t':
 224                         case ';':
 225                                 i++;
 226                                 break;
 227                         case '\0':
 228                                 state = END;
 229                                 break;
 230                         default:
 231                                 state = ERROR;
 232                                 break;
 233                         }
 234                         break;
 235                 case WIDTH:
 236                         switch (buffer[i]) {
 237                         case '0'...'9':
 238                                 w = (w * 10) + (buffer[i] - '0');
 239                                 i++;
 240                                 break;
 241                         case 'x':
 242                                 state = DELIM;
 243                                 i++;
 244                                 break;
 245                         default:
 246                                 state = ERROR;
 247                                 break;
 248                         }
 249
 250                         break;
 251                 case DELIM:
 252                         switch (buffer[i]) {
 253                         case '1'...'9':
 254                                 state = HEIGHT;
 255                                 break;
 256                         case ' ':
 257                         case '\t':
 258                                 i++;
 259                                 break;
 260                         default:
 261                                 state = ERROR;
 262                                 break;
 263                         }
 264                         break;
 265                 case HEIGHT:
 266                         switch (buffer[i]) {
 267                         case '0'...'9':
 268                                 h = (h * 10) + (buffer[i] - '0');
 269                                 i++;
 270                                 break;
 271                         case ';':
 272                         case '\0':
 273                                 state = STOP;
 274                                 break;
 275                         default:
 276                                 state = ERROR;
 277                                 break;
 278                         }
 279                         break;
 280                 case STOP:
 281                         if (w == 1 && h == 1) {
 282                                 *size |= LB_SIZE_TYPE_1x1;
 283                         } else if (w == 2 && h == 1) {
 284                                 *size |= LB_SIZE_TYPE_2x1;
 285                         } else if (w == 2 && h == 2) {
 286                                 *size |= LB_SIZE_TYPE_2x2;
 287                         } else if (w == 4 && h == 1) {
 288                                 *size |= LB_SIZE_TYPE_4x1;
 289                         } else if (w == 4 && h == 2) {
 290                                 *size |= LB_SIZE_TYPE_4x2;
 291                         } else if (w == 4 && h == 3) {
 292                                 *size |= LB_SIZE_TYPE_4x3;
 293                         } else if (w == 4 && h == 4) {
 294                                 *size |= LB_SIZE_TYPE_4x4;
 295                         } else if (w == 21 && h == 21) {
 296                                 *size |= LB_SIZE_TYPE_EASY_1x1;
 297                         } else if (w == 23 && h == 21) {
 298                                 *size |= LB_SIZE_TYPE_EASY_3x1;
 299                         } else if (w == 23 && h == 23) {
 300                                 *size |= LB_SIZE_TYPE_EASY_3x3;
 301                         } else {
 302                                 ErrPrint("Invalid size type: %dx%d\n", w, h);
 303                         }
 304
 305                         if (buffer[i] == ';')
 306                                 state = START;
 307                         else if (buffer[i] == '\0')
 308                                 state = END;
 309
 310                         w = 0;
 311                         h = 0;
 312                         break;
 313                 default:
 314                         return -1;
 315                 }
 316         }
 317
 318         return *size ? 0 : -1;
 319 }
 320
 321 /*!
 322  * \note
 323  * This will change the value of "buffer"
 324  */
 325 static inline const char *rtrim(char *buffer)
 326 {
 327         int len;
 328
 329         len = strlen(buffer);
 330         while (len > 0 && isspace(buffer[len - 1]))
 331                 len--;
 332
 333         if (len <= 0)
 334                 return NULL;
 335
 336         buffer[len] = '\0';
 337
 338         return buffer;
 339 }
 340
 341 /*!
 342  * \note
 343  * This will change the value of "buffer"
 344  */
 345 static inline char *dup_rtrim(char *buffer)
 346 {
 347         char *ret;
 348
 349         if (!rtrim(buffer))
 350                 return NULL;
 351
 352         ret = strdup(buffer);
 353         if (!ret) {
 354                 ErrPrint("Heap: %s\n", strerror(errno));
 355                 return NULL;
 356         }
 357
 358         return ret;
 359 }
 360
 361 static void period_handler(struct parser *item, char *buffer)
 362 {
 363         char *tmp = NULL;
 364
 365         if (!rtrim(buffer))
 366                 return;
 367
 368         item->period = strtod(buffer, &tmp);
 369 }
 370
 371 static void timeout_handler(struct parser *item, char *buffer)
 372 {
 373         if (!rtrim(buffer))
 374                 return;
 375
 376         item->timeout = atoi(buffer);
 377 }
 378
 379 static void network_handler(struct parser *item, char *buffer)
 380 {
 381         if (!rtrim(buffer))
 382                 return;
 383
 384         item->network = !!atoi(buffer);
 385 }
 386
 387 static void auto_launch_handler(struct parser *item, char *buffer)
 388 {
 389         if (!rtrim(buffer))
 390                 return;
 391
 392         item->auto_launch = strdup(buffer);
 393         if (!item->auto_launch) {
 394                 ErrPrint("Heap: %s\n", strerror(errno));
 395                 return;
 396         }
 397 }
 398
 399 static void size_handler(struct parser *item, char *buffer)
 400 {
 401         if (parse_size(buffer, &item->size) == -1) {
 402                 ErrPrint("Failed to get size\n");
 403                 item->size = 0x00000001;
 404         }
 405 }
 406
 407 static void pd_size_handler(struct parser *item, char *buffer)
 408 {
 409         if (sscanf(buffer, "%ux%u", &item->pd_width, &item->pd_height) != 2)
 410                 ErrPrint("parse pd size\n");
 411 }
 412
 413 static void text_lb_handler(struct parser *item, char *buffer)
 414 {
 415         if (!rtrim(buffer))
 416                 return;
 417
 418         item->text_lb = !!atoi(buffer);
 419 }
 420
 421 static void abi_handler(struct parser *item, char *buffer)
 422 {
 423         item->abi = dup_rtrim(buffer);
 424 }
 425
 426 static void script_handler(struct parser *item, char *buffer)
 427 {
 428         item->script = dup_rtrim(buffer);
 429 }
 430
 431 static void buffer_pd_handler(struct parser *item, char *buffer)
 432 {
 433         if (!rtrim(buffer))
 434                 return;
 435
 436         item->buffer_pd = !!atoi(buffer);
 437 }
 438
 439 static void buffer_lb_handler(struct parser *item, char *buffer)
 440 {
 441         if (!rtrim(buffer))
 442                 return;
 443         item->buffer_lb = !!atoi(buffer);
 444 }
 445
 446 static void text_pd_handler(struct parser *item, char *buffer)
 447 {
 448         if (!rtrim(buffer))
 449                 return;
 450
 451         item->text_pd = !!atoi(buffer);
 452 }
 453
 454 static void pinup_handler(struct parser *item, char *buffer)
 455 {
 456         if (!rtrim(buffer))
 457                 return;
 458
 459         item->pinup = !!atoi(buffer);
 460 }
 461
 462 static void lb_path_handler(struct parser *item, char *buffer)
 463 {
 464         if (item->lb_path)
 465                 DbgFree(item->lb_path);
 466
 467         item->lb_path = dup_rtrim(buffer);
 468         if (!item->lb_path)
 469                 ErrPrint("Error: %s\n", strerror(errno));
 470 }
 471
 472 static void group_handler(struct parser *item, char *buffer)
 473 {
 474         if (item->group)
 475                 DbgFree(item->group);
 476
 477         item->group = dup_rtrim(buffer);
 478         if (!item->group)
 479                 ErrPrint("Error: %s\n", strerror(errno));
 480 }
 481
 482 static void secured_handler(struct parser *item, char *buffer)
 483 {
 484         if (!rtrim(buffer))
 485                 return;
 486
 487         item->secured = !!atoi(buffer);
 488 }
 489
 490 static void lb_group_handler(struct parser *item, char *buffer)
 491 {
 492         if (item->lb_group)
 493                 DbgFree(item->lb_group);
 494
 495         item->lb_group = dup_rtrim(buffer);
 496         if (!item->lb_group)
 497                 ErrPrint("Error: %s\n", strerror(errno));
 498 }
 499
 500 static void pd_path_handler(struct parser *item, char *buffer)
 501 {
 502         if (item->pd_path)
 503                 DbgFree(item->pd_path);
 504
 505         item->pd_path = dup_rtrim(buffer);
 506         if (!item->pd_path)
 507                 ErrPrint("Error: %s\n", strerror(errno));
 508 }
 509
 510 static void pd_group_handler(struct parser *item, char *buffer)
 511 {
 512         if (item->pd_group)
 513                 DbgFree(item->pd_group);
 514
 515         item->pd_group = dup_rtrim(buffer);
 516         if (!item->pd_group)
 517                 ErrPrint("Error: %s\n", strerror(errno));
 518 }
 519
 520 HAPI struct parser *parser_load(const char *pkgname)
 521 {
 522         struct parser *item;
 523         FILE *fp;
 524         int c;
 525         enum state {
 526                 START,
 527                 SPACE,
 528                 TOKEN,
 529                 VALUE,
 530                 ERROR,
 531                 COMMENT,
 532                 END
 533         } state;
 534         int ch_idx;
 535         int token_idx;
 536         int buffer_idx;
 537         int quote;
 538         int len;
 539         int linelen;
 540         char buffer[256];
 541         static const struct token_parser {
 542                 const char *name;
 543                 void (*handler)(struct parser *, char *buffer);
 544         } token_handler[] = {
 545                 {
 546                         .name = "period",
 547                         .handler = period_handler,
 548                 },
 549                 {
 550                         .name = "timeout",
 551                         .handler = timeout_handler,
 552                 },
 553                 {
 554                         .name = "network",
 555                         .handler = network_handler,
 556                 },
 557                 {
 558                         .name = "auto_launch",
 559                         .handler = auto_launch_handler,
 560                 },
 561                 {
 562                         .name = "size",
 563                         .handler = size_handler,
 564                 },
 565                 {
 566                         .name = "group",
 567                         .handler = group_handler,
 568                 },
 569                 {
 570                         .name = "secured",
 571                         .handler = secured_handler,
 572                 },
 573                 {
 574                         .name = "livebox_path",
 575                         .handler = lb_path_handler,
 576                 },
 577                 {
 578                         .name = "livebox_group",
 579                         .handler = lb_group_handler,
 580                 },
 581                 {
 582                         .name = "pd_path",
 583                         .handler = pd_path_handler,
 584                 },
 585                 {
 586                         .name = "pd_group",
 587                         .handler = pd_group_handler,
 588                 },
 589                 {
 590                         .name = "pd_size",
 591                         .handler = pd_size_handler,
 592                 },
 593                 {
 594                         .name = "pinup",
 595                         .handler = pinup_handler,
 596                 },
 597                 {
 598                         .name = "text_livebox",
 599                         .handler = text_lb_handler,
 600                 },
 601                 {
 602                         .name = "text_pd",
 603                         .handler = text_pd_handler,
 604                 },
 605                 {
 606                         .name = "buffer_livebox",
 607                         .handler = buffer_lb_handler,
 608                 },
 609                 {
 610                         .name = "buffer_pd",
 611                         .handler = buffer_pd_handler,
 612                 },
 613                 {
 614                         .name = "script",
 615                         .handler = script_handler,
 616                 },
 617                 {
 618                         .name = "abi",
 619                         .handler = abi_handler,
 620                 },
 621                 {
 622                         .name = NULL,
 623                         .handler = NULL,
 624                 },
 625         };
 626         int ret;
 627
 628         item = calloc(1, sizeof(*item));
 629         if (!item)
 630                 return 0;
 631
 632         /* live-, .conf */
 633         len = strlen(CONF_PATH) + strlen(pkgname) * 2;
 634         item->filename = malloc(len);
 635         if (!item->filename) {
 636                 ErrPrint("Error: %s\n", strerror(errno));
 637                 DbgFree(item);
 638                 return 0;
 639         }
 640
 641         ret = snprintf(item->filename, len, CONF_PATH, pkgname, pkgname);
 642         if (ret < 0) {
 643                 ErrPrint("Error: %s\n", strerror(errno));
 644                 DbgFree(item->filename);
 645                 DbgFree(item);
 646                 return 0;
 647         }
 648
 649         item->lb_path = NULL;
 650         item->lb_group = NULL;
 651         item->pd_width = 0;
 652         item->pd_height = 0;
 653         item->auto_launch = NULL;
 654         item->size = 0x00000001;
 655         item->group = NULL;
 656         item->secured = 0;
 657         item->pinup = 0;
 658
 659         fp = fopen(item->filename, "rt");
 660         if (!fp) {
 661                 DbgFree(item->filename);
 662                 DbgFree(item);
 663                 return 0;
 664         }
 665
 666         state = START;
 667         ch_idx = 0;
 668         token_idx = -1;
 669         buffer_idx = 0;
 670         quote = 0;
 671         linelen = 0;
 672         do {
 673                 c = getc(fp);
 674                 if ((c == EOF) && (state == VALUE))
 675                         state = END;
 676
 677                 switch (state) {
 678                 case COMMENT:
 679                         if (c == CR || c == LF || c == EOF) {
 680                                 buffer[buffer_idx] = '\0';
 681
 682                                 state = START;
 683                                 token_idx = -1;
 684                                 ch_idx = 0;
 685                                 buffer_idx = 0;
 686                                 linelen = -1; /* Will be ZERO by follwing increment code */
 687                                 quote = 0;
 688                         } else {
 689                                 buffer[buffer_idx++] = c;
 690                                 if (buffer_idx == (sizeof(buffer) - 1)) {
 691                                         buffer[buffer_idx] = '\0';
 692                                         buffer_idx = 0;
 693                                 }
 694                         }
 695                         break;
 696                 case START:
 697                         if (linelen == 0 && c == '#') {
 698                                 state = COMMENT;
 699                         } else if (isspace(c)) {
 700                                 /* Ignore empty space */
 701                         } else {
 702                                 state = TOKEN;
 703                                 ungetc(c, fp);
 704                         }
 705                         break;
 706                 case SPACE:
 707                         if (c == '=')
 708                                 state = VALUE;
 709                         else if (!isspace(c))
 710                                 state = ERROR;
 711                         break;
 712                 case VALUE:
 713                         if (c == '"') {
 714                                 if (quote == 1) {
 715                                         buffer[buffer_idx] = '\0';
 716                                         state = END;
 717                                 } else if (buffer_idx != 0) {
 718                                         buffer[buffer_idx++] = c;
 719                                         if (buffer_idx >= sizeof(buffer))
 720                                                 state = ERROR;
 721                                 } else {
 722                                         quote = 1;
 723                                 }
 724                         } else if (isspace(c)) {
 725                                 if (buffer_idx == 0) {
 726                                         /* Ignore */
 727                                 } else if (quote == 1) {
 728                                         buffer[buffer_idx++] = c;
 729                                         if (buffer_idx >= sizeof(buffer))
 730                                                 state = ERROR;
 731                                 } else {
 732                                         buffer[buffer_idx] = '\0';
 733                                         ungetc(c, fp);
 734                                         state = END;
 735                                 }
 736                         } else {
 737                                 buffer[buffer_idx++] = c;
 738                                 if (buffer_idx >= sizeof(buffer))
 739                                         state = ERROR;
 740                         }
 741                         break;
 742                 case TOKEN:
 743                         if (c == '=') {
 744                                 if (token_idx < 0)
 745                                         state = ERROR;
 746                                 else
 747                                         state = VALUE;
 748                         } else if (isspace(c)) {
 749                                 if (token_idx < 0)
 750                                         break;
 751
 752                                 if (token_handler[token_idx].name[ch_idx] != '\0')
 753                                         state = ERROR;
 754                                 else
 755                                         state = SPACE;
 756                         } else  {
 757                                 if (token_idx < 0) {
 758                                         /* Now start to find a token! */
 759                                         token_idx = 0;
 760                                 }
 761
 762                                 if (token_handler[token_idx].name[ch_idx] == c) {
 763                                         ch_idx++;
 764                                 } else {
 765                                         ungetc(c, fp);
 766                                         while (ch_idx-- > 0)
 767                                                 ungetc(token_handler[token_idx].name[ch_idx], fp);
 768
 769                                         token_idx++;
 770
 771                                         if (token_handler[token_idx].name == NULL)
 772                                                 state = ERROR;
 773                                         else
 774                                                 ch_idx = 0;
 775                                 }
 776                         }
 777                         break;
 778                 case ERROR:
 779                         if (c == CR || c == LF || c == EOF) {
 780                                 state = START;
 781                                 token_idx = -1;
 782                                 buffer_idx = 0;
 783                                 ch_idx = 0;
 784                                 linelen = -1;
 785                                 quote = 0;
 786                         }
 787                         break;
 788                 case END:
 789                         if (c == LF || c == CR || c == EOF) {
 790                                 state = START;
 791
 792                                 /*!
 793                                  * \NOTE
 794                                  * Make the string terminator
 795                                  */
 796                                 buffer[buffer_idx] = '\0';
 797
 798                                 if (token_idx >= 0 && token_handler[token_idx].handler)
 799                                         token_handler[token_idx].handler(item, buffer);
 800
 801                                 token_idx = -1;
 802                                 ch_idx = 0;
 803                                 buffer_idx = 0;
 804                                 linelen = -1;
 805                                 quote = 0;
 806                                 /* Finish */
 807                         } else if (isspace(c)) {
 808                                 /* ignore */
 809                         } else {
 810                                 state = ERROR;
 811                         }
 812                         break;
 813                 default:
 814                         /* ?? */
 815                         break;
 816                 }
 817
 818                 linelen++;
 819          } while (c != EOF);
 820
 821         if (fclose(fp) != 0)
 822                 ErrPrint("fclose: %s\n", strerror(errno));
 823
 824         s_list = eina_list_append(s_list, item);
 825         return item;
 826 }
 827
 828 HAPI int parser_unload(struct parser *item)
 829 {
 830         s_list = eina_list_remove(s_list, item);
 831
 832         DbgFree(item->auto_launch);
 833         DbgFree(item->abi);
 834         DbgFree(item->script);
 835         DbgFree(item->group);
 836         DbgFree(item->pd_group);
 837         DbgFree(item->pd_path);
 838         DbgFree(item->lb_group);
 839         DbgFree(item->lb_path);
 840         DbgFree(item->filename);
 841         DbgFree(item);
 842         return LB_STATUS_SUCCESS;
 843 }
 844
 845 /* End of a file */