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 #include "opkg_upgrade.h"
  30
  31 #include "sprintf_alloc.h"
  32 #include "file_util.h"
  33
  34 #include <libbb/libbb.h>
  35
  36 struct _opkg_t
  37 {
  38   args_t *args;
  39   opkg_conf_t *conf;
  40   opkg_option_t *options;
  41 };
  42
  43 #define opkg_assert(expr) if (!(expr)) { \
  44     printf ("opkg: file %s: line %d (%s): Assertation '%s' failed",\
  45             __FILE__, __LINE__, __PRETTY_FUNCTION__, # expr); abort (); }
  46
  47 #define progress(percent) if (progress_callback) progress_callback (opkg, percent, user_data);
  48
  49 /** Private Functions ***/
  50
  51
  52 static int
  53 opkg_configure_packages(opkg_conf_t *conf, char *pkg_name)
  54 {
  55   pkg_vec_t *all;
  56   int i;
  57   pkg_t *pkg;
  58   int r, err = 0;
  59
  60   all = pkg_vec_alloc ();
  61   pkg_hash_fetch_available (&conf->pkg_hash, all);
  62
  63   for (i = 0; i < all->len; i++)
  64   {
  65     pkg = all->pkgs[i];
  66
  67     if (pkg_name && fnmatch (pkg_name, pkg->name, 0))
  68       continue;
  69
  70     if (pkg->state_status == SS_UNPACKED)
  71     {
  72       r = opkg_configure (conf, pkg);
  73       if (r == 0)
  74       {
  75         pkg->state_status = SS_INSTALLED;
  76         pkg->parent->state_status = SS_INSTALLED;
  77         pkg->state_flag &= ~SF_PREFER;
  78       }
  79       else
  80       {
  81         if (!err)
  82           err = r;
  83       }
  84     }
  85   }
  86
  87   pkg_vec_free (all);
  88   return err;
  89 }
  90
  91 struct _curl_cb_data
  92 {
  93   opkg_progress_callback_t cb;
  94   opkg_t *opkg;
  95   void *user_data;
  96   int start_range;
  97   int finish_range;
  98 };
  99
 100 int
 101 curl_progress_cb (struct _curl_cb_data *cb_data,
 102                   double t,   /* dltotal */
 103                   double d,   /* dlnow */
 104                   double ultotal,
 105                   double ulnow)
 106 {
 107   int p = (t) ? d * 100 / t : 0;
 108   static int prev = -1;
 109
 110   /* prevent the same value being sent twice (can occur due to rounding) */
 111   if (p == prev)
 112     return 0;
 113   prev = p;
 114
 115   if (t < 1)
 116     return 0;
 117
 118   (cb_data->cb)(cb_data->opkg,
 119                 cb_data->start_range + (d / t * ((cb_data->finish_range - cb_data->start_range))),
 120                 cb_data->user_data);
 121
 122   return 0;
 123 }
 124
 125
 126 /*** Public API ***/
 127
 128 opkg_package_t *
 129 opkg_package_new ()
 130 {
 131
 132   opkg_package_t *p;
 133
 134   p = malloc (sizeof (opkg_package_t));
 135   memset (p, 0, sizeof (opkg_package_t));
 136
 137   return p;
 138 }
 139
 140 opkg_package_t *
 141 opkg_package_new_with_values (const char *name, const char *version,
 142     const char *arch, const char *desc, const char *tags, int installed)
 143 {
 144   opkg_package_t *package;
 145   package = opkg_package_new ();
 146
 147 #define sstrdup(x) (x) ? strdup (x) : NULL;
 148
 149   package->name = sstrdup (name);
 150   package->version = sstrdup (version);
 151   package->architecture = sstrdup (arch);
 152   package->description = sstrdup (desc);
 153   package->tags = sstrdup (tags);
 154   package->installed = (installed != 0);
 155
 156   return package;
 157 }
 158
 159 void
 160 opkg_package_free (opkg_package_t *p)
 161 {
 162   free (p->name);
 163   free (p->version);
 164   free (p->architecture);
 165   free (p->description);
 166   free (p->tags);
 167
 168   free (p);
 169 }
 170
 171 opkg_t *
 172 opkg_new ()
 173 {
 174   opkg_t *opkg;
 175   opkg = malloc (sizeof (opkg_t));
 176
 177   opkg->args = malloc (sizeof (args_t));
 178   args_init (opkg->args);
 179
 180   opkg->conf = malloc (sizeof (opkg_conf_t));
 181   opkg_conf_init (opkg->conf, opkg->args);
 182
 183   opkg_init_options_array (opkg->conf, &opkg->options);
 184   return opkg;
 185 }
 186
 187 void
 188 opkg_free (opkg_t *opkg)
 189 {
 190   opkg_assert (opkg != NULL);
 191
 192   opkg_conf_deinit (opkg->conf);
 193   args_deinit (opkg->args);
 194 }
 195
 196 int
 197 opkg_read_config_files (opkg_t *opkg)
 198 {
 199   args_t *a;
 200   opkg_conf_t *c;
 201
 202   opkg_assert (opkg != NULL);
 203
 204   a = opkg->args;
 205   c = opkg->conf;
 206
 207   /* Unfortunatly, the easiest way to re-read the config files right now is to
 208    * throw away opkg->conf and start again */
 209
 210   /* copy the settings we need to keep */
 211   a->autoremove = c->autoremove;
 212   a->force_depends = c->force_depends;
 213   a->force_defaults = c->force_defaults;
 214   a->force_overwrite = c->force_overwrite;
 215   a->force_downgrade = c->force_downgrade;
 216   a->force_reinstall = c->force_reinstall;
 217   a->force_removal_of_dependent_packages = c->force_removal_of_dependent_packages;
 218   a->force_removal_of_essential_packages = c->force_removal_of_essential_packages;
 219   a->nodeps = c->nodeps;
 220   a->noaction = c->noaction;
 221   a->query_all = c->query_all;
 222   a->multiple_providers = c->multiple_providers;
 223   a->verbosity = c->verbosity;
 224
 225   if (c->offline_root)
 226   {
 227     if (a->offline_root) free (a->offline_root);
 228     a->offline_root = strdup (c->offline_root);
 229   }
 230
 231   if (c->offline_root_pre_script_cmd)
 232   {
 233     if (a->offline_root_pre_script_cmd) free (a->offline_root_pre_script_cmd);
 234     a->offline_root_pre_script_cmd = strdup (c->offline_root_pre_script_cmd);
 235   }
 236
 237   if (c->offline_root_post_script_cmd)
 238   {
 239     if (a->offline_root_post_script_cmd) free (a->offline_root_post_script_cmd);
 240     a->offline_root_post_script_cmd = strdup (c->offline_root_post_script_cmd);
 241   }
 242
 243   /* throw away old opkg_conf and start again */
 244   opkg_conf_deinit (opkg->conf);
 245   opkg_conf_init (opkg->conf, opkg->args);
 246
 247   free (opkg->options);
 248   opkg_init_options_array (opkg->conf, &opkg->options);
 249
 250   return 0;
 251 }
 252
 253 void
 254 opkg_get_option (opkg_t *opkg, char *option, void **value)
 255 {
 256   int i = 0;
 257   opkg_option_t *options;
 258
 259   opkg_assert (opkg != NULL);
 260   opkg_assert (option != NULL);
 261   opkg_assert (value != NULL);
 262
 263   options = opkg->options;
 264
 265   /* look up the option
 266    * TODO: this would be much better as a hash table
 267    */
 268   while (options[i].name)
 269   {
 270     if (strcmp (options[i].name, option) != 0)
 271     {
 272       i++;
 273       continue;
 274     }
 275   }
 276
 277   /* get the option */
 278   switch (options[i].type)
 279   {
 280   case OPKG_OPT_TYPE_BOOL:
 281     *((int *) value) = *((int *) options[i].value);
 282     return;
 283
 284   case OPKG_OPT_TYPE_INT:
 285     *((int *) value) = *((int *) options[i].value);
 286     return;
 287
 288   case OPKG_OPT_TYPE_STRING:
 289     *((char **)value) = strdup (options[i].value);
 290     return;
 291   }
 292
 293 }
 294
 295 void
 296 opkg_set_option (opkg_t *opkg, char *option, void *value)
 297 {
 298   int i = 0, found = 0;
 299   opkg_option_t *options;
 300
 301   opkg_assert (opkg != NULL);
 302   opkg_assert (option != NULL);
 303   opkg_assert (value != NULL);
 304
 305   options = opkg->options;
 306
 307   /* look up the option
 308    * TODO: this would be much better as a hash table
 309    */
 310   while (options[i].name)
 311   {
 312     if (strcmp (options[i].name, option) == 0)
 313     {
 314       found = 1;
 315       break;
 316     }
 317     i++;
 318   }
 319
 320   if (!found)
 321   {
 322     /* XXX: Warning: Option not found */
 323     return;
 324   }
 325
 326   /* set the option */
 327   switch (options[i].type)
 328   {
 329   case OPKG_OPT_TYPE_BOOL:
 330     if (*((int *) value) == 0)
 331       *((int *)options[i].value) = 0;
 332     else
 333       *((int *)options[i].value) = 1;
 334     return;
 335
 336   case OPKG_OPT_TYPE_INT:
 337     *((int *) options[i].value) = *((int *) value);
 338     return;
 339
 340   case OPKG_OPT_TYPE_STRING:
 341     *((char **)options[i].value) = strdup (value);
 342     return;
 343   }
 344
 345 }
 346
 347 int
 348 opkg_install_package (opkg_t *opkg, const char *package_name, opkg_progress_callback_t progress_callback, void *user_data)
 349 {
 350   int err;
 351   char *package_id = NULL;
 352
 353   opkg_assert (opkg != NULL);
 354   opkg_assert (package_name != NULL);
 355
 356   progress (0);
 357
 358   /* download the package */
 359   opkg_prepare_url_for_install (opkg->conf, package_name, &package_id);
 360
 361   progress (50);
 362
 363   /* ... */
 364   pkg_info_preinstall_check (opkg->conf);
 365
 366   if (!package_id)
 367     package_id = strdup (package_name);
 368
 369   /* unpack the package */
 370   if (opkg->conf->multiple_providers)
 371   {
 372     err = opkg_install_multi_by_name (opkg->conf, package_id);
 373   }
 374   else
 375   {
 376     err = opkg_install_by_name (opkg->conf, package_id);
 377   }
 378
 379   if (err)
 380     return err;
 381
 382   progress (75);
 383
 384   /* run configure scripts, etc. */
 385   err = opkg_configure_packages (opkg->conf, NULL);
 386   if (err)
 387     return err;
 388
 389   /* write out status files and file lists */
 390   opkg_conf_write_status_files (opkg->conf);
 391   pkg_write_changed_filelists (opkg->conf);
 392
 393   progress (100);
 394   return 0;
 395 }
 396
 397 int
 398 opkg_remove_package (opkg_t *opkg, const char *package_name, opkg_progress_callback_t progress_callback, void *user_data)
 399 {
 400   pkg_t *pkg = NULL;
 401   pkg_t *pkg_to_remove;
 402
 403   opkg_assert (opkg != NULL);
 404   opkg_assert (package_name != NULL);
 405
 406   progress (0);
 407
 408   pkg_info_preinstall_check (opkg->conf);
 409
 410   pkg_vec_t *installed_pkgs = pkg_vec_alloc ();
 411
 412   pkg_hash_fetch_all_installed (&opkg->conf->pkg_hash, installed_pkgs);
 413
 414   progress (25);
 415
 416   pkg = pkg_hash_fetch_installed_by_name (&opkg->conf->pkg_hash, package_name);
 417
 418   if (pkg == NULL)
 419   {
 420     /* XXX: Error: Package not installed. */
 421     return 1;
 422   }
 423
 424   if (pkg->state_status == SS_NOT_INSTALLED)
 425   {
 426     /* XXX:  Error: Package seems to be not installed (STATUS = NOT_INSTALLED). */
 427     return 1;
 428   }
 429
 430   progress (75);
 431
 432   if (opkg->conf->restrict_to_default_dest)
 433   {
 434     pkg_to_remove = pkg_hash_fetch_installed_by_name_dest (&opkg->conf->pkg_hash,
 435                                                            pkg->name,
 436                                                            opkg->conf->default_dest);
 437   }
 438   else
 439   {
 440     pkg_to_remove = pkg_hash_fetch_installed_by_name (&opkg->conf->pkg_hash, pkg->name );
 441   }
 442
 443
 444   progress (75);
 445
 446   opkg_remove_pkg (opkg->conf, pkg_to_remove, 0);
 447
 448   /* write out status files and file lists */
 449   opkg_conf_write_status_files (opkg->conf);
 450   pkg_write_changed_filelists (opkg->conf);
 451
 452
 453   progress (100);
 454   return 0;
 455 }
 456
 457 int
 458 opkg_upgrade_package (opkg_t *opkg, const char *package_name, opkg_progress_callback_t progress_callback, void *user_data)
 459 {
 460   pkg_t *pkg;
 461
 462   opkg_assert (opkg != NULL);
 463   opkg_assert (package_name != NULL);
 464
 465   progress (0);
 466
 467   pkg_info_preinstall_check (opkg->conf);
 468
 469   if (opkg->conf->restrict_to_default_dest)
 470   {
 471     pkg = pkg_hash_fetch_installed_by_name_dest (&opkg->conf->pkg_hash,
 472                                                  package_name,
 473                                                  opkg->conf->default_dest);
 474     if (pkg == NULL)
 475     {
 476       /* XXX: Error: Package not installed in default_dest */
 477       return 1;
 478     }
 479   }
 480   else
 481   {
 482     pkg = pkg_hash_fetch_installed_by_name (&opkg->conf->pkg_hash,
 483                                             package_name);
 484   }
 485
 486   if (!pkg)
 487   {
 488     /* XXX: Error: Package not installed */
 489     return 1;
 490   }
 491
 492   progress (25);
 493
 494   opkg_upgrade_pkg (opkg->conf, pkg);
 495   progress (75);
 496
 497   opkg_configure_packages (opkg->conf, NULL);
 498   progress (100);
 499   return 0;
 500 }
 501
 502 int
 503 opkg_upgrade_all (opkg_t *opkg, opkg_progress_callback_t progress_callback, void *user_data)
 504 {
 505   pkg_vec_t *installed;
 506   int err = 0;
 507   int i;
 508   pkg_t *pkg;
 509
 510   opkg_assert (opkg != NULL);
 511   progress (0);
 512
 513   installed = pkg_vec_alloc ();
 514   pkg_info_preinstall_check (opkg->conf);
 515
 516   pkg_hash_fetch_all_installed (&opkg->conf->pkg_hash, installed);
 517   for (i = 0; i < installed->len; i++)
 518   {
 519     pkg = installed->pkgs[i];
 520     err += opkg_upgrade_pkg (opkg->conf, pkg);
 521     progress (100 * i / installed->len);
 522   }
 523   pkg_vec_free (installed);
 524
 525   if (err)
 526     return 1;
 527
 528   err = opkg_configure_packages (opkg->conf, NULL);
 529   if (err)
 530     return 1;
 531
 532   progress (100);
 533   return 0;
 534 }
 535
 536 int
 537 opkg_update_package_lists (opkg_t *opkg, opkg_progress_callback_t progress_callback, void *user_data)
 538 {
 539   char *tmp;
 540   int err;
 541   char *lists_dir;
 542   pkg_src_list_elt_t *iter;
 543   pkg_src_t *src;
 544   int sources_list_count, sources_done;
 545
 546   opkg_assert (opkg != NULL);
 547
 548   progress (0);
 549
 550   sprintf_alloc (&lists_dir, "%s",
 551                  (opkg->conf->restrict_to_default_dest)
 552                  ? opkg->conf->default_dest->lists_dir
 553                  : opkg->conf->lists_dir);
 554
 555   if (!file_is_dir (lists_dir))
 556   {
 557     if (file_exists (lists_dir))
 558     {
 559       /* XXX: Error: file exists but is not a directory */
 560       free (lists_dir);
 561       return 1;
 562     }
 563
 564     err = file_mkdir_hier (lists_dir, 0755);
 565     if (err)
 566     {
 567       /* XXX: Error: failed to create directory */
 568       free (lists_dir);
 569       return 1;
 570     }
 571   }
 572
 573   tmp = strdup ("/tmp/opkg.XXXXXX");
 574
 575   if (mkdtemp (tmp) == NULL)
 576   {
 577     /* XXX: Error: could not create temporary file name */
 578     free (lists_dir);
 579     free (tmp);
 580     return 1;
 581   }
 582
 583   /* cout the number of sources so we can give some progress updates */
 584   sources_list_count = 0;
 585   sources_done = 0;
 586   iter = opkg->conf->pkg_src_list.head;
 587   while (iter)
 588   {
 589     sources_list_count++;
 590     iter = iter->next;
 591   }
 592
 593   for (iter = opkg->conf->pkg_src_list.head; iter; iter = iter->next)
 594   {
 595     char *url, *list_file_name;
 596
 597     src = iter->data;
 598
 599     if (src->extra_data)  /* debian style? */
 600       sprintf_alloc (&url, "%s/%s/%s", src->value, src->extra_data,
 601                      src->gzip ? "Packages.gz" : "Packages");
 602     else
 603       sprintf_alloc (&url, "%s/%s", src->value, src->gzip ? "Packages.gz" : "Packages");
 604
 605     sprintf_alloc (&list_file_name, "%s/%s", lists_dir, src->name);
 606     if (src->gzip)
 607     {
 608       char *tmp_file_name;
 609       FILE *in, *out;
 610       struct _curl_cb_data cb_data;
 611
 612       sprintf_alloc (&tmp_file_name, "%s/%s.gz", tmp, src->name);
 613
 614       /* XXX: Note: downloading url */
 615
 616       cb_data.cb = progress_callback;
 617       cb_data.opkg = opkg;
 618       cb_data.user_data = user_data;
 619       cb_data.start_range = 100 * sources_done / sources_list_count;
 620       cb_data.finish_range = 100 * (sources_done + 1) / sources_list_count;
 621
 622       err = opkg_download (opkg->conf, url, tmp_file_name, (curl_progress_func) curl_progress_cb, &cb_data);
 623
 624       if (err == 0)
 625       {
 626         /* XXX: Note: Inflating downloaded file */
 627         in = fopen (tmp_file_name, "r");
 628         out = fopen (list_file_name, "w");
 629         if (in && out)
 630           unzip (in, out);
 631         else
 632           err = 1;
 633         if (in)
 634           fclose (in);
 635         if (out)
 636           fclose (out);
 637         unlink (tmp_file_name);
 638       }
 639     }
 640     else
 641       err = opkg_download (opkg->conf, url, list_file_name, NULL, NULL);
 642
 643     if (err)
 644     {
 645       /* XXX: Error: download error */
 646     }
 647     free (url);
 648
 649 #ifdef HAVE_GPGME
 650     /* download detached signitures to verify the package lists */
 651     /* get the url for the sig file */
 652     if (src->extra_data)  /* debian style? */
 653       sprintf_alloc (&url, "%s/%s/%s", src->value, src->extra_data,
 654                      "Packages.sig");
 655     else
 656       sprintf_alloc (&url, "%s/%s", src->value, "Packages.sig");
 657
 658     /* create temporary file for it */
 659     char *tmp_file_name;
 660
 661     sprintf_alloc (&tmp_file_name, "%s/%s", tmp, "Packages.sig");
 662
 663     err = opkg_download (opkg->conf, url, tmp_file_name, NULL, NULL);
 664     if (err)
 665     {
 666       /* XXX: Warning: Download failed */
 667     }
 668     else
 669     {
 670       int err;
 671       err = opkg_verify_file (opkg->conf, list_file_name, tmp_file_name);
 672       if (err == 0)
 673       {
 674         /* XXX: Notice: Signature check passed */
 675       }
 676       else
 677       {
 678         /* XXX: Warning: Signature check failed */
 679       }
 680     }
 681     unlink (tmp_file_name);
 682     free (tmp_file_name);
 683     free (url);
 684 #else
 685     /* XXX: Note: Signiture check for %s skipped because GPG support was not
 686      * enabled in this build
 687      */
 688 #endif
 689     free (list_file_name);
 690
 691     sources_done++;
 692     progress (100 * sources_done / sources_list_count);
 693   }
 694
 695   rmdir (tmp);
 696   free (tmp);
 697   free (lists_dir);
 698
 699   return 0;
 700 }
 701
 702
 703 int
 704 opkg_list_packages (opkg_t *opkg, opkg_package_callback_t callback, void *user_data)
 705 {
 706   pkg_vec_t *all;
 707   int i;
 708
 709   opkg_assert (opkg);
 710   opkg_assert (callback);
 711
 712   all = pkg_vec_alloc ();
 713   pkg_hash_fetch_available (&opkg->conf->pkg_hash, all);
 714   for (i = 0; i < all->len; i++)
 715   {
 716     pkg_t *pkg;
 717     opkg_package_t *package;
 718
 719     pkg = all->pkgs[i];
 720
 721     package = opkg_package_new_with_values (
 722         pkg->name,
 723         pkg->version,
 724         pkg->architecture,
 725         pkg->description,
 726         pkg->tags,
 727         (pkg->state_status == SS_INSTALLED));
 728
 729     callback (opkg, package, user_data);
 730   }
 731
 732   pkg_vec_free (all);
 733
 734   return 0;
 735 }
 736