third_party/libxml/src/xmlcatalog.c

   1 /*
   2  * xmlcatalog.c : a small utility program to handle XML catalogs
   3  *
   4  * See Copyright for the status of this software.
   5  *
   6  * daniel@veillard.com
   7  */
   8
   9 #include "libxml.h"
  10
  11 #include <string.h>
  12 #include <stdio.h>
  13 #include <stdarg.h>
  14
  15 #ifdef HAVE_STDLIB_H
  16 #include <stdlib.h>
  17 #endif
  18
  19 #ifdef HAVE_LIBREADLINE
  20 #include <readline/readline.h>
  21 #ifdef HAVE_LIBHISTORY
  22 #include <readline/history.h>
  23 #endif
  24 #endif
  25
  26 #include <libxml/xmlmemory.h>
  27 #include <libxml/uri.h>
  28 #include <libxml/catalog.h>
  29 #include <libxml/parser.h>
  30 #include <libxml/globals.h>
  31
  32 #if defined(LIBXML_CATALOG_ENABLED) && defined(LIBXML_OUTPUT_ENABLED)
  33 static int shell = 0;
  34 static int sgml = 0;
  35 static int noout = 0;
  36 static int create = 0;
  37 static int add = 0;
  38 static int del = 0;
  39 static int convert = 0;
  40 static int no_super_update = 0;
  41 static int verbose = 0;
  42 static char *filename = NULL;
  43
  44
  45 #ifndef XML_SGML_DEFAULT_CATALOG
  46 #define XML_SGML_DEFAULT_CATALOG "/etc/sgml/catalog"
  47 #endif
  48
  49 /************************************************************************
  50  *                                                                      *
  51  *                      Shell Interface                                 *
  52  *                                                                      *
  53  ************************************************************************/
  54 /**
  55  * xmlShellReadline:
  56  * @prompt:  the prompt value
  57  *
  58  * Read a string
  59  *
  60  * Returns a pointer to it or NULL on EOF the caller is expected to
  61  *     free the returned string.
  62  */
  63 static char *
  64 xmlShellReadline(const char *prompt) {
  65 #ifdef HAVE_LIBREADLINE
  66     char *line_read;
  67
  68     /* Get a line from the user. */
  69     line_read = readline (prompt);
  70
  71     /* If the line has any text in it, save it on the history. */
  72     if (line_read && *line_read)
  73         add_history (line_read);
  74
  75     return (line_read);
  76 #else
  77     char line_read[501];
  78     char *ret;
  79     int len;
  80
  81     if (prompt != NULL)
  82         fprintf(stdout, "%s", prompt);
  83     if (!fgets(line_read, 500, stdin))
  84         return(NULL);
  85     line_read[500] = 0;
  86     len = strlen(line_read);
  87     ret = (char *) malloc(len + 1);
  88     if (ret != NULL) {
  89         memcpy (ret, line_read, len + 1);
  90     }
  91     return(ret);
  92 #endif
  93 }
  94
  95 static void usershell(void) {
  96     char *cmdline = NULL, *cur;
  97     int nbargs;
  98     char command[100];
  99     char arg[400];
 100     char *argv[20];
 101     int i, ret;
 102     xmlChar *ans;
 103
 104     while (1) {
 105         cmdline = xmlShellReadline("> ");
 106         if (cmdline == NULL)
 107             return;
 108
 109         /*
 110          * Parse the command itself
 111          */
 112         cur = cmdline;
 113         nbargs = 0;
 114         while ((*cur == ' ') || (*cur == '\t')) cur++;
 115         i = 0;
 116         while ((*cur != ' ') && (*cur != '\t') &&
 117                (*cur != '\n') && (*cur != '\r')) {
 118             if (*cur == 0)
 119                 break;
 120             command[i++] = *cur++;
 121         }
 122         command[i] = 0;
 123         if (i == 0) {
 124             free(cmdline);
 125             continue;
 126         }
 127
 128         /*
 129          * Parse the argument string
 130          */
 131         memset(arg, 0, sizeof(arg));
 132         while ((*cur == ' ') || (*cur == '\t')) cur++;
 133         i = 0;
 134         while ((*cur != '\n') && (*cur != '\r') && (*cur != 0)) {
 135             if (*cur == 0)
 136                 break;
 137             arg[i++] = *cur++;
 138         }
 139         arg[i] = 0;
 140
 141         /*
 142          * Parse the arguments
 143          */
 144         i = 0;
 145         nbargs = 0;
 146         cur = arg;
 147         memset(argv, 0, sizeof(argv));
 148         while (*cur != 0) {
 149             while ((*cur == ' ') || (*cur == '\t')) cur++;
 150             if (*cur == '\'') {
 151                 cur++;
 152                 argv[i] = cur;
 153                 while ((*cur != 0) && (*cur != '\'')) cur++;
 154                 if (*cur == '\'') {
 155                     *cur = 0;
 156                     nbargs++;
 157                     i++;
 158                     cur++;
 159                 }
 160             } else if (*cur == '"') {
 161                 cur++;
 162                 argv[i] = cur;
 163                 while ((*cur != 0) && (*cur != '"')) cur++;
 164                 if (*cur == '"') {
 165                     *cur = 0;
 166                     nbargs++;
 167                     i++;
 168                     cur++;
 169                 }
 170             } else {
 171                 argv[i] = cur;
 172                 while ((*cur != 0) && (*cur != ' ') && (*cur != '\t'))
 173                     cur++;
 174                 *cur = 0;
 175                 nbargs++;
 176                 i++;
 177                 cur++;
 178             }
 179         }
 180
 181         /*
 182          * start interpreting the command
 183          */
 184         if (!strcmp(command, "exit"))
 185             break;
 186         if (!strcmp(command, "quit"))
 187             break;
 188         if (!strcmp(command, "bye"))
 189             break;
 190         if (!strcmp(command, "public")) {
 191             if (nbargs != 1) {
 192                 printf("public requires 1 arguments\n");
 193             } else {
 194                 ans = xmlCatalogResolvePublic((const xmlChar *) argv[0]);
 195                 if (ans == NULL) {
 196                     printf("No entry for PUBLIC %s\n", argv[0]);
 197                 } else {
 198                     printf("%s\n", (char *) ans);
 199                     xmlFree(ans);
 200                 }
 201             }
 202         } else if (!strcmp(command, "system")) {
 203             if (nbargs != 1) {
 204                 printf("system requires 1 arguments\n");
 205             } else {
 206                 ans = xmlCatalogResolveSystem((const xmlChar *) argv[0]);
 207                 if (ans == NULL) {
 208                     printf("No entry for SYSTEM %s\n", argv[0]);
 209                 } else {
 210                     printf("%s\n", (char *) ans);
 211                     xmlFree(ans);
 212                 }
 213             }
 214         } else if (!strcmp(command, "add")) {
 215             if (sgml) {
 216                 if ((nbargs != 3) && (nbargs != 2)) {
 217                     printf("add requires 2 or 3 arguments\n");
 218                 } else {
 219                     if (argv[2] == NULL)
 220                         ret = xmlCatalogAdd(BAD_CAST argv[0], NULL,
 221                                             BAD_CAST argv[1]);
 222                     else
 223                         ret = xmlCatalogAdd(BAD_CAST argv[0], BAD_CAST argv[1],
 224                                             BAD_CAST argv[2]);
 225                     if (ret != 0)
 226                         printf("add command failed\n");
 227                 }
 228             } else {
 229                 if ((nbargs != 3) && (nbargs != 2)) {
 230                     printf("add requires 2 or 3 arguments\n");
 231                 } else {
 232                     if (argv[2] == NULL)
 233                         ret = xmlCatalogAdd(BAD_CAST argv[0], NULL,
 234                                             BAD_CAST argv[1]);
 235                     else
 236                         ret = xmlCatalogAdd(BAD_CAST argv[0], BAD_CAST argv[1],
 237                                             BAD_CAST argv[2]);
 238                     if (ret != 0)
 239                         printf("add command failed\n");
 240                 }
 241             }
 242         } else if (!strcmp(command, "del")) {
 243             if (nbargs != 1) {
 244                 printf("del requires 1\n");
 245             } else {
 246                 ret = xmlCatalogRemove(BAD_CAST argv[0]);
 247                 if (ret <= 0)
 248                     printf("del command failed\n");
 249
 250             }
 251         } else if (!strcmp(command, "resolve")) {
 252             if (nbargs != 2) {
 253                 printf("resolve requires 2 arguments\n");
 254             } else {
 255                 ans = xmlCatalogResolve(BAD_CAST argv[0],
 256                                         BAD_CAST argv[1]);
 257                 if (ans == NULL) {
 258                     printf("Resolver failed to find an answer\n");
 259                 } else {
 260                     printf("%s\n", (char *) ans);
 261                     xmlFree(ans);
 262                 }
 263             }
 264         } else if (!strcmp(command, "dump")) {
 265             if (nbargs != 0) {
 266                 printf("dump has no arguments\n");
 267             } else {
 268                 xmlCatalogDump(stdout);
 269             }
 270         } else if (!strcmp(command, "debug")) {
 271             if (nbargs != 0) {
 272                 printf("debug has no arguments\n");
 273             } else {
 274                 verbose++;
 275                 xmlCatalogSetDebug(verbose);
 276             }
 277         } else if (!strcmp(command, "quiet")) {
 278             if (nbargs != 0) {
 279                 printf("quiet has no arguments\n");
 280             } else {
 281                 if (verbose > 0)
 282                     verbose--;
 283                 xmlCatalogSetDebug(verbose);
 284             }
 285         } else {
 286             if (strcmp(command, "help")) {
 287                 printf("Unrecognized command %s\n", command);
 288             }
 289             printf("Commands available:\n");
 290             printf("\tpublic PublicID: make a PUBLIC identifier lookup\n");
 291             printf("\tsystem SystemID: make a SYSTEM identifier lookup\n");
 292             printf("\tresolve PublicID SystemID: do a full resolver lookup\n");
 293             printf("\tadd 'type' 'orig' 'replace' : add an entry\n");
 294             printf("\tdel 'values' : remove values\n");
 295             printf("\tdump: print the current catalog state\n");
 296             printf("\tdebug: increase the verbosity level\n");
 297             printf("\tquiet: decrease the verbosity level\n");
 298             printf("\texit:  quit the shell\n");
 299         }
 300         free(cmdline); /* not xmlFree here ! */
 301     }
 302 }
 303
 304 /************************************************************************
 305  *                                                                      *
 306  *                      Main                                            *
 307  *                                                                      *
 308  ************************************************************************/
 309 static void usage(const char *name) {
 310     /* split into 2 printf's to avoid overly long string (gcc warning) */
 311     printf("\
 312 Usage : %s [options] catalogfile entities...\n\
 313 \tParse the catalog file and query it for the entities\n\
 314 \t--sgml : handle SGML Super catalogs for --add and --del\n\
 315 \t--shell : run a shell allowing interactive queries\n\
 316 \t--create : create a new catalog\n\
 317 \t--add 'type' 'orig' 'replace' : add an XML entry\n\
 318 \t--add 'entry' : add an SGML entry\n", name);
 319     printf("\
 320 \t--del 'values' : remove values\n\
 321 \t--noout: avoid dumping the result on stdout\n\
 322 \t         used with --add or --del, it saves the catalog changes\n\
 323 \t         and with --sgml it automatically updates the super catalog\n\
 324 \t--no-super-update: do not update the SGML super catalog\n\
 325 \t-v --verbose : provide debug informations\n");
 326 }
 327 int main(int argc, char **argv) {
 328     int i;
 329     int ret;
 330     int exit_value = 0;
 331
 332
 333     if (argc <= 1) {
 334         usage(argv[0]);
 335         return(1);
 336     }
 337
 338     LIBXML_TEST_VERSION
 339     for (i = 1; i < argc ; i++) {
 340         if (!strcmp(argv[i], "-"))
 341             break;
 342
 343         if (argv[i][0] != '-')
 344             break;
 345         if ((!strcmp(argv[i], "-verbose")) ||
 346             (!strcmp(argv[i], "-v")) ||
 347             (!strcmp(argv[i], "--verbose"))) {
 348             verbose++;
 349             xmlCatalogSetDebug(verbose);
 350         } else if ((!strcmp(argv[i], "-noout")) ||
 351             (!strcmp(argv[i], "--noout"))) {
 352             noout = 1;
 353         } else if ((!strcmp(argv[i], "-shell")) ||
 354             (!strcmp(argv[i], "--shell"))) {
 355             shell++;
 356             noout = 1;
 357         } else if ((!strcmp(argv[i], "-sgml")) ||
 358             (!strcmp(argv[i], "--sgml"))) {
 359             sgml++;
 360         } else if ((!strcmp(argv[i], "-create")) ||
 361             (!strcmp(argv[i], "--create"))) {
 362             create++;
 363         } else if ((!strcmp(argv[i], "-convert")) ||
 364             (!strcmp(argv[i], "--convert"))) {
 365             convert++;
 366         } else if ((!strcmp(argv[i], "-no-super-update")) ||
 367             (!strcmp(argv[i], "--no-super-update"))) {
 368             no_super_update++;
 369         } else if ((!strcmp(argv[i], "-add")) ||
 370             (!strcmp(argv[i], "--add"))) {
 371             if (sgml)
 372                 i += 2;
 373             else
 374                 i += 3;
 375             add++;
 376         } else if ((!strcmp(argv[i], "-del")) ||
 377             (!strcmp(argv[i], "--del"))) {
 378             i += 1;
 379             del++;
 380         } else {
 381             fprintf(stderr, "Unknown option %s\n", argv[i]);
 382             usage(argv[0]);
 383             return(1);
 384         }
 385     }
 386
 387     for (i = 1; i < argc; i++) {
 388         if ((!strcmp(argv[i], "-add")) ||
 389             (!strcmp(argv[i], "--add"))) {
 390             if (sgml)
 391                 i += 2;
 392             else
 393                 i += 3;
 394             continue;
 395         } else if ((!strcmp(argv[i], "-del")) ||
 396             (!strcmp(argv[i], "--del"))) {
 397             i += 1;
 398
 399             /* No catalog entry specified */
 400             if (i == argc || (sgml && i + 1 == argc)) {
 401                 fprintf(stderr, "No catalog entry specified to remove from\n");
 402                 usage (argv[0]);
 403                 return(1);
 404             }
 405
 406             continue;
 407         } else if (argv[i][0] == '-')
 408             continue;
 409         filename = argv[i];
 410             ret = xmlLoadCatalog(argv[i]);
 411             if ((ret < 0) && (create)) {
 412                 xmlCatalogAdd(BAD_CAST "catalog", BAD_CAST argv[i], NULL);
 413             }
 414         break;
 415     }
 416
 417     if (convert)
 418         ret = xmlCatalogConvert();
 419
 420     if ((add) || (del)) {
 421         for (i = 1; i < argc ; i++) {
 422             if (!strcmp(argv[i], "-"))
 423                 break;
 424
 425             if (argv[i][0] != '-')
 426                 continue;
 427             if (strcmp(argv[i], "-add") && strcmp(argv[i], "--add") &&
 428                 strcmp(argv[i], "-del") && strcmp(argv[i], "--del"))
 429                 continue;
 430
 431             if (sgml) {
 432                 /*
 433                  * Maintenance of SGML catalogs.
 434                  */
 435                 xmlCatalogPtr catal = NULL;
 436                 xmlCatalogPtr super = NULL;
 437
 438                 catal = xmlLoadSGMLSuperCatalog(argv[i + 1]);
 439
 440                 if ((!strcmp(argv[i], "-add")) ||
 441                     (!strcmp(argv[i], "--add"))) {
 442                     if (catal == NULL)
 443                         catal = xmlNewCatalog(1);
 444                     xmlACatalogAdd(catal, BAD_CAST "CATALOG",
 445                                          BAD_CAST argv[i + 2], NULL);
 446
 447                     if (!no_super_update) {
 448                         super = xmlLoadSGMLSuperCatalog(XML_SGML_DEFAULT_CATALOG);
 449                         if (super == NULL)
 450                             super = xmlNewCatalog(1);
 451
 452                         xmlACatalogAdd(super, BAD_CAST "CATALOG",
 453                                              BAD_CAST argv[i + 1], NULL);
 454                     }
 455                 } else {
 456                     if (catal != NULL)
 457                         ret = xmlACatalogRemove(catal, BAD_CAST argv[i + 2]);
 458                     else
 459                         ret = -1;
 460                     if (ret < 0) {
 461                         fprintf(stderr, "Failed to remove entry from %s\n",
 462                                 argv[i + 1]);
 463                         exit_value = 1;
 464                     }
 465                     if ((!no_super_update) && (noout) && (catal != NULL) &&
 466                         (xmlCatalogIsEmpty(catal))) {
 467                         super = xmlLoadSGMLSuperCatalog(
 468                                    XML_SGML_DEFAULT_CATALOG);
 469                         if (super != NULL) {
 470                             ret = xmlACatalogRemove(super,
 471                                     BAD_CAST argv[i + 1]);
 472                             if (ret < 0) {
 473                                 fprintf(stderr,
 474                                         "Failed to remove entry from %s\n",
 475                                         XML_SGML_DEFAULT_CATALOG);
 476                                 exit_value = 1;
 477                             }
 478                         }
 479                     }
 480                 }
 481                 if (noout) {
 482                     FILE *out;
 483
 484                     if (xmlCatalogIsEmpty(catal)) {
 485                         remove(argv[i + 1]);
 486                     } else {
 487                         out = fopen(argv[i + 1], "w");
 488                         if (out == NULL) {
 489                             fprintf(stderr, "could not open %s for saving\n",
 490                                     argv[i + 1]);
 491                             exit_value = 2;
 492                             noout = 0;
 493                         } else {
 494                             xmlACatalogDump(catal, out);
 495                             fclose(out);
 496                         }
 497                     }
 498                     if (!no_super_update && super != NULL) {
 499                         if (xmlCatalogIsEmpty(super)) {
 500                             remove(XML_SGML_DEFAULT_CATALOG);
 501                         } else {
 502                             out = fopen(XML_SGML_DEFAULT_CATALOG, "w");
 503                             if (out == NULL) {
 504                                 fprintf(stderr,
 505                                         "could not open %s for saving\n",
 506                                         XML_SGML_DEFAULT_CATALOG);
 507                                 exit_value = 2;
 508                                 noout = 0;
 509                             } else {
 510
 511                                 xmlACatalogDump(super, out);
 512                                 fclose(out);
 513                             }
 514                         }
 515                     }
 516                 } else {
 517                     xmlACatalogDump(catal, stdout);
 518                 }
 519                 i += 2;
 520             } else {
 521                 if ((!strcmp(argv[i], "-add")) ||
 522                     (!strcmp(argv[i], "--add"))) {
 523                         if ((argv[i + 3] == NULL) || (argv[i + 3][0] == 0))
 524                             ret = xmlCatalogAdd(BAD_CAST argv[i + 1], NULL,
 525                                                 BAD_CAST argv[i + 2]);
 526                         else
 527                             ret = xmlCatalogAdd(BAD_CAST argv[i + 1],
 528                                                 BAD_CAST argv[i + 2],
 529                                                 BAD_CAST argv[i + 3]);
 530                         if (ret != 0) {
 531                             printf("add command failed\n");
 532                             exit_value = 3;
 533                         }
 534                         i += 3;
 535                 } else if ((!strcmp(argv[i], "-del")) ||
 536                     (!strcmp(argv[i], "--del"))) {
 537                     ret = xmlCatalogRemove(BAD_CAST argv[i + 1]);
 538                     if (ret < 0) {
 539                         fprintf(stderr, "Failed to remove entry %s\n",
 540                                 argv[i + 1]);
 541                         exit_value = 1;
 542                     }
 543                     i += 1;
 544                 }
 545             }
 546         }
 547
 548     } else if (shell) {
 549         usershell();
 550     } else {
 551         for (i++; i < argc; i++) {
 552             xmlURIPtr uri;
 553             xmlChar *ans;
 554
 555             uri = xmlParseURI(argv[i]);
 556             if (uri == NULL) {
 557                 ans = xmlCatalogResolvePublic((const xmlChar *) argv[i]);
 558                 if (ans == NULL) {
 559                     printf("No entry for PUBLIC %s\n", argv[i]);
 560                     exit_value = 4;
 561                 } else {
 562                     printf("%s\n", (char *) ans);
 563                     xmlFree(ans);
 564                 }
 565             } else {
 566                 xmlFreeURI(uri);
 567                 ans = xmlCatalogResolveSystem((const xmlChar *) argv[i]);
 568                 if (ans == NULL) {
 569                     printf("No entry for SYSTEM %s\n", argv[i]);
 570                     ans = xmlCatalogResolveURI ((const xmlChar *) argv[i]);
 571                     if (ans == NULL) {
 572                         printf ("No entry for URI %s\n", argv[i]);
 573                         exit_value = 4;
 574                     } else {
 575                         printf("%s\n", (char *) ans);
 576                         xmlFree (ans);
 577                     }
 578                 } else {
 579                     printf("%s\n", (char *) ans);
 580                     xmlFree(ans);
 581                 }
 582             }
 583         }
 584     }
 585     if ((!sgml) && ((add) || (del) || (create) || (convert))) {
 586         if (noout && filename && *filename) {
 587             FILE *out;
 588
 589             out = fopen(filename, "w");
 590             if (out == NULL) {
 591                 fprintf(stderr, "could not open %s for saving\n", filename);
 592                 exit_value = 2;
 593                 noout = 0;
 594             } else {
 595                 xmlCatalogDump(out);
 596             }
 597         } else {
 598             xmlCatalogDump(stdout);
 599         }
 600     }
 601
 602     /*
 603      * Cleanup and check for memory leaks
 604      */
 605     xmlCleanupParser();
 606     xmlMemoryDump();
 607     return(exit_value);
 608 }
 609 #else
 610 int main(int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) {
 611     fprintf(stderr, "libxml was not compiled with catalog and output support\n");
 612     return(1);
 613 }
 614 #endif