libopkg/opkg.c

   1 /* opkg.c - the opkg  package management system
   2
   3    Thomas Wood <thomas@openedhand.com>
   4
   5    Copyright (C) 2008 OpenMoko Inc
   6
   7    This program is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU General Public License as
   9    published by the Free Software Foundation; either version 2, or (at
  10    your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful, but
  13    WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    General Public License for more details.
  16  */
  17
  18 #include <config.h>
  19 #include <fnmatch.h>
  20
  21 #include "opkg.h"
  22 #include "opkg_conf.h"
  23 #include "args.h"
  24
  25 #include "opkg_install.h"
  26 #include "opkg_configure.h"
  27 #include "opkg_download.h"
  28 #include "opkg_remove.h"
  29
  30 #include "sprintf_alloc.h"
  31 #include "file_util.h"
  32
  33 #include <libbb/libbb.h>
  34
  35 struct _opkg_t
  36 {
  37   args_t *args;
  38   opkg_conf_t *conf;
  39   opkg_option_t *options;
  40 };
  41
  42 #define opkg_assert(expr) if (!(expr)) { \
  43    printf ("opkg: file %s: line %d (%s): Assertation '%s' failed",\
  44        __FILE__, __LINE__, __PRETTY_FUNCTION__, #expr); abort(); }
  45
  46 #define progress(percent) if (progress_callback) progress_callback (opkg, percent, user_data);
  47
  48 /** Private Functions ***/
  49
  50
  51 static int
  52 opkg_configure_packages(opkg_conf_t *conf, char *pkg_name)
  53 {
  54   pkg_vec_t *all;
  55   int i;
  56   pkg_t *pkg;
  57   int r, err = 0;
  58
  59   all = pkg_vec_alloc ();
  60   pkg_hash_fetch_available (&conf->pkg_hash, all);
  61
  62   for (i = 0; i < all->len; i++)
  63   {
  64     pkg = all->pkgs[i];
  65
  66     if (pkg_name && fnmatch (pkg_name, pkg->name, 0))
  67       continue;
  68
  69     if (pkg->state_status == SS_UNPACKED)
  70     {
  71       r = opkg_configure (conf, pkg);
  72       if (r == 0)
  73       {
  74         pkg->state_status = SS_INSTALLED;
  75         pkg->parent->state_status = SS_INSTALLED;
  76         pkg->state_flag &= ~SF_PREFER;
  77       }
  78       else
  79       {
  80         if (!err)
  81           err = r;
  82       }
  83     }
  84   }
  85
  86   pkg_vec_free (all);
  87   return err;
  88 }
  89
  90
  91
  92 /*** Public API ***/
  93
  94 opkg_t *
  95 opkg_new ()
  96 {
  97   opkg_t *opkg;
  98   opkg = malloc (sizeof (opkg_t));
  99
 100   opkg->args = malloc (sizeof (args_t));
 101   args_init (opkg->args);
 102
 103   opkg->conf = malloc (sizeof (opkg_conf_t));
 104   opkg_conf_init (opkg->conf, opkg->args);
 105
 106   opkg_init_options_array (opkg->conf, &opkg->options);
 107   return opkg;
 108 }
 109
 110 void
 111 opkg_free (opkg_t *opkg)
 112 {
 113   opkg_assert (opkg != NULL);
 114
 115   opkg_conf_deinit (opkg->conf);
 116   args_deinit (opkg->args);
 117 }
 118
 119 int
 120 opkg_read_config_files (opkg_t *opkg)
 121 {
 122   args_t *a;
 123   opkg_conf_t *c;
 124
 125   opkg_assert (opkg != NULL);
 126
 127   a = opkg->args;
 128   c = opkg->conf;
 129
 130   /* Unfortunatly, the easiest way to re-read the config files right now is to
 131    * throw away opkg->conf and start again */
 132
 133   /* copy the settings we need to keep */
 134   a->autoremove = c->autoremove;
 135   a->force_depends = c->force_depends;
 136   a->force_defaults = c->force_defaults;
 137   a->force_overwrite = c->force_overwrite;
 138   a->force_downgrade = c->force_downgrade;
 139   a->force_reinstall = c->force_reinstall;
 140   a->force_removal_of_dependent_packages = c->force_removal_of_dependent_packages;
 141   a->force_removal_of_essential_packages = c->force_removal_of_essential_packages;
 142   a->nodeps = c->nodeps;
 143   a->noaction = c->noaction;
 144   a->query_all = c->query_all;
 145   a->multiple_providers = c->multiple_providers;
 146   a->verbosity = c->verbosity;
 147
 148   if (c->offline_root)
 149   {
 150     if (a->offline_root) free (a->offline_root);
 151     a->offline_root = strdup (c->offline_root);
 152   }
 153
 154   if (c->offline_root_pre_script_cmd)
 155   {
 156     if (a->offline_root_pre_script_cmd) free (a->offline_root_pre_script_cmd);
 157     a->offline_root_pre_script_cmd = strdup (c->offline_root_pre_script_cmd);
 158   }
 159
 160   if (c->offline_root_post_script_cmd)
 161   {
 162     if (a->offline_root_post_script_cmd) free (a->offline_root_post_script_cmd);
 163     a->offline_root_post_script_cmd = strdup (c->offline_root_post_script_cmd);
 164   }
 165
 166   /* throw away old opkg_conf and start again */
 167   opkg_conf_deinit (opkg->conf);
 168   opkg_conf_init (opkg->conf, opkg->args);
 169
 170   free (opkg->options);
 171   opkg_init_options_array (opkg->conf, &opkg->options);
 172
 173   return 0;
 174 }
 175
 176 void
 177 opkg_get_option (opkg_t *opkg, char *option, void **value)
 178 {
 179   int i = 0;
 180   opkg_option_t *options;
 181
 182   opkg_assert (opkg != NULL);
 183   opkg_assert (option != NULL);
 184   opkg_assert (value != NULL);
 185
 186   options = opkg->options;
 187
 188   /* look up the option
 189    * TODO: this would be much better as a hash table
 190    */
 191   while (options[i].name)
 192   {
 193     if (strcmp (options[i].name, option) != 0)
 194     {
 195       i++;
 196       continue;
 197     }
 198   }
 199
 200   /* get the option */
 201   switch (options[i].type)
 202   {
 203   case OPKG_OPT_TYPE_BOOL:
 204     *((int *) value) = *((int *) options[i].value);
 205     return;
 206
 207   case OPKG_OPT_TYPE_INT:
 208     *((int *) value) = *((int *) options[i].value);
 209     return;
 210
 211   case OPKG_OPT_TYPE_STRING:
 212     *((char **)value) = strdup (options[i].value);
 213     return;
 214   }
 215
 216 }
 217
 218 void
 219 opkg_set_option (opkg_t *opkg, char *option, void *value)
 220 {
 221   int i = 0;
 222   opkg_option_t *options;
 223
 224   opkg_assert (opkg != NULL);
 225   opkg_assert (option != NULL);
 226   opkg_assert (value != NULL);
 227
 228   options = opkg->options;
 229
 230   /* look up the option
 231    * TODO: this would be much better as a hash table
 232    */
 233   while (options[i].name)
 234   {
 235     if (strcmp (options[i].name, option) == 0)
 236     {
 237       break;
 238     }
 239     i++;
 240   }
 241
 242   /* set the option */
 243   switch (options[i].type)
 244   {
 245   case OPKG_OPT_TYPE_BOOL:
 246     if (*((int *) value) == 0)
 247       *((int *)options[i].value) = 0;
 248     else
 249       *((int *)options[i].value) = 1;
 250     return;
 251
 252   case OPKG_OPT_TYPE_INT:
 253     *((int *) options[i].value) = *((int *) value);
 254     return;
 255
 256   case OPKG_OPT_TYPE_STRING:
 257     *((char **)options[i].value) = strdup (value);
 258     return;
 259   }
 260
 261 }
 262
 263 int
 264 opkg_install_package (opkg_t *opkg, const char *package_name, opkg_progress_callback_t progress_callback, void *user_data)
 265 {
 266   int err;
 267   char *package_id = NULL;
 268
 269   opkg_assert (opkg != NULL);
 270   opkg_assert (package_name != NULL);
 271
 272   progress (0);
 273
 274   /* download the package */
 275   opkg_prepare_url_for_install (opkg->conf, package_name, &package_id);
 276
 277   progress (50);
 278
 279   /* ... */
 280   pkg_info_preinstall_check (opkg->conf);
 281
 282   if (!package_id)
 283     package_id = strdup (package_name);
 284
 285   /* unpack the package */
 286   if (opkg->conf->multiple_providers)
 287   {
 288     err = opkg_install_multi_by_name (opkg->conf, package_id);
 289   }
 290   else
 291   {
 292     err = opkg_install_by_name (opkg->conf, package_id);
 293   }
 294
 295   if (err)
 296     return err;
 297
 298   progress (75);
 299
 300   /* run configure scripts, etc. */
 301   err = opkg_configure_packages (opkg->conf, NULL);
 302   if (err)
 303     return err;
 304
 305   /* write out status files and file lists */
 306   opkg_conf_write_status_files (opkg->conf);
 307   pkg_write_changed_filelists (opkg->conf);
 308
 309   progress (100);
 310   return 0;
 311 }
 312
 313 int
 314 opkg_remove_package (opkg_t *opkg, const char *package_name, opkg_progress_callback_t progress_callback, void *user_data)
 315 {
 316   pkg_t *pkg = NULL;
 317   pkg_t *pkg_to_remove;
 318
 319   opkg_assert (opkg != NULL);
 320   opkg_assert (package_name != NULL);
 321
 322   progress (0);
 323
 324   pkg_info_preinstall_check (opkg->conf);
 325
 326   pkg_vec_t *installed_pkgs = pkg_vec_alloc ();
 327
 328   pkg_hash_fetch_all_installed (&opkg->conf->pkg_hash, installed_pkgs);
 329
 330   progress (25);
 331
 332   pkg = pkg_hash_fetch_installed_by_name (&opkg->conf->pkg_hash, package_name);
 333
 334   if (pkg == NULL)
 335   {
 336     /* XXX: Error: Package not installed. */
 337     return 1;
 338   }
 339
 340   if (pkg->state_status == SS_NOT_INSTALLED)
 341   {
 342     /* XXX:  Error: Package seems to be not installed (STATUS = NOT_INSTALLED). */
 343     return 1;
 344   }
 345
 346   progress (75);
 347
 348   if (opkg->conf->restrict_to_default_dest)
 349   {
 350     pkg_to_remove = pkg_hash_fetch_installed_by_name_dest (&opkg->conf->pkg_hash,
 351                                                            pkg->name,
 352                                                            opkg->conf->default_dest);
 353   }
 354   else
 355   {
 356     pkg_to_remove = pkg_hash_fetch_installed_by_name (&opkg->conf->pkg_hash, pkg->name );
 357   }
 358
 359
 360   progress (75);
 361
 362   opkg_remove_pkg (opkg->conf, pkg_to_remove, 0);
 363
 364   /* write out status files and file lists */
 365   opkg_conf_write_status_files (opkg->conf);
 366   pkg_write_changed_filelists (opkg->conf);
 367
 368
 369   progress (100);
 370   return 0;
 371 }
 372
 373 int
 374 opkg_upgrade_package (opkg_t *opkg, const char *package_name, opkg_progress_callback_t progress_callback, void *user_data)
 375 {
 376   return 1;
 377 }
 378
 379 int
 380 opkg_upgrade_all (opkg_t *opkg, opkg_progress_callback_t progress_callback, void *user_data)
 381 {
 382   return 1;
 383 }
 384
 385 int
 386 opkg_update_package_lists (opkg_t *opkg, opkg_progress_callback_t progress_callback, void *user_data)
 387 {
 388   char *tmp;
 389   int err;
 390   char *lists_dir;
 391   pkg_src_list_elt_t *iter;
 392   pkg_src_t *src;
 393   int sources_list_count, sources_done;
 394
 395   opkg_assert (opkg != NULL);
 396
 397   progress (0);
 398
 399   sprintf_alloc (&lists_dir, "%s",
 400                  (opkg->conf->restrict_to_default_dest)
 401                  ? opkg->conf->default_dest->lists_dir
 402                  : opkg->conf->lists_dir);
 403
 404   if (!file_is_dir (lists_dir))
 405   {
 406     if (file_exists (lists_dir))
 407     {
 408       /* XXX: Error: file exists but is not a directory */
 409       free (lists_dir);
 410       return 1;
 411     }
 412
 413     err = file_mkdir_hier (lists_dir, 0755);
 414     if (err)
 415     {
 416       /* XXX: Error: failed to create directory */
 417       free (lists_dir);
 418       return 1;
 419     }
 420   }
 421
 422   tmp = strdup ("/tmp/opkg.XXXXXX");
 423
 424   if (mkdtemp (tmp) == NULL)
 425   {
 426     /* XXX: Error: could not create temporary file name */
 427     free (lists_dir);
 428     free (tmp);
 429     return 1;
 430   }
 431
 432   /* cout the number of sources so we can give some progress updates */
 433   sources_list_count = 0;
 434   sources_done = 0;
 435   iter = opkg->conf->pkg_src_list.head;
 436   while (iter)
 437   {
 438     sources_list_count++;
 439     iter = iter->next;
 440   }
 441
 442   for (iter = opkg->conf->pkg_src_list.head; iter; iter = iter->next)
 443   {
 444     char *url, *list_file_name;
 445
 446     src = iter->data;
 447
 448     if (src->extra_data)  /* debian style? */
 449       sprintf_alloc (&url, "%s/%s/%s", src->value, src->extra_data,
 450                      src->gzip ? "Packages.gz" : "Packages");
 451     else
 452       sprintf_alloc (&url, "%s/%s", src->value, src->gzip ? "Packages.gz" : "Packages");
 453
 454     sprintf_alloc (&list_file_name, "%s/%s", lists_dir, src->name);
 455     if (src->gzip)
 456     {
 457       char *tmp_file_name;
 458       FILE *in, *out;
 459
 460       sprintf_alloc (&tmp_file_name, "%s/%s.gz", tmp, src->name);
 461
 462       /* XXX: Note: downloading url */
 463       err = opkg_download (opkg->conf, url, tmp_file_name);
 464
 465       if (err == 0)
 466       {
 467         /* XXX: Note: Inflating downloaded file */
 468         in = fopen (tmp_file_name, "r");
 469         out = fopen (list_file_name, "w");
 470         if (in && out)
 471           unzip (in, out);
 472         else
 473           err = 1;
 474         if (in)
 475           fclose (in);
 476         if (out)
 477           fclose (out);
 478         unlink (tmp_file_name);
 479       }
 480     }
 481     else
 482       err = opkg_download (opkg->conf, url, list_file_name);
 483
 484     if (err)
 485     {
 486       /* XXX: Error: download error */
 487     }
 488     free (url);
 489
 490 #ifdef HAVE_GPGME
 491     /* download detached signitures to verify the package lists */
 492     /* get the url for the sig file */
 493     if (src->extra_data)  /* debian style? */
 494       sprintf_alloc (&url, "%s/%s/%s", src->value, src->extra_data,
 495                      "Packages.sig");
 496     else
 497       sprintf_alloc (&url, "%s/%s", src->value, "Packages.sig");
 498
 499     /* create temporary file for it */
 500     char *tmp_file_name;
 501
 502     sprintf_alloc (&tmp_file_name, "%s/%s", tmp, "Packages.sig");
 503
 504     err = opkg_download (opkg->conf, url, tmp_file_name);
 505     if (err)
 506     {
 507       /* XXX: Warning: Download failed */
 508     }
 509     else
 510     {
 511       int err;
 512       err = opkg_verify_file (opkg->conf, list_file_name, tmp_file_name);
 513       if (err == 0)
 514       {
 515         /* XXX: Notice: Signature check passed */
 516       }
 517       else
 518       {
 519         /* XXX: Warning: Signature check failed */
 520       }
 521     }
 522     unlink (tmp_file_name);
 523     free (tmp_file_name);
 524     free (url);
 525 #else
 526     /* XXX: Note: Signiture check for %s skipped because GPG support was not
 527      * enabled in this build
 528      */
 529 #endif
 530     free (list_file_name);
 531
 532     sources_done++;
 533     progress (100 * sources_done / sources_list_count);
 534   }
 535
 536   rmdir (tmp);
 537   free (tmp);
 538   free (lists_dir);
 539
 540   return 0;
 541 }