onak.c

   1 /*
   2  * onak.c - An OpenPGP keyserver.
   3  *
   4  * This is the main swiss army knife binary.
   5  *
   6  * Copyright 2002 Jonathan McDowell <noodles@earth.li>
   7  *
   8  * This program is free software: you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the Free
  10  * Software Foundation; version 2 of the License.
  11  *
  12  * This program is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  15  * more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along with
  18  * this program; if not, write to the Free Software Foundation, Inc., 51
  19  * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20  */
  21
  22 #include <fcntl.h>
  23 #include <getopt.h>
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <sys/types.h>
  28 #include <sys/stat.h>
  29 #include <unistd.h>
  30
  31 #include "armor.h"
  32 #include "charfuncs.h"
  33 #include "cleankey.h"
  34 #include "cleanup.h"
  35 #include "keydb.h"
  36 #include "keyid.h"
  37 #include "keyindex.h"
  38 #include "keystructs.h"
  39 #include "log.h"
  40 #include "mem.h"
  41 #include "merge.h"
  42 #include "onak-conf.h"
  43 #include "parsekey.h"
  44 #include "photoid.h"
  45 #include "version.h"
  46
  47 void find_keys(char *search, uint64_t keyid, bool ishex,
  48                 bool fingerprint, bool skshash, bool exact, bool verbose)
  49 {
  50         struct openpgp_publickey *publickey = NULL;
  51         int count = 0;
  52
  53         if (ishex) {
  54                 count = config.dbbackend->fetch_key(keyid, &publickey, false);
  55         } else {
  56                 count = config.dbbackend->fetch_key_text(search, &publickey);
  57         }
  58         if (publickey != NULL) {
  59                 key_index(publickey, verbose, fingerprint, skshash, false);
  60                 free_publickey(publickey);
  61         } else if (count == 0) {
  62                 puts("Key not found.");
  63         } else {
  64                 printf("Found %d keys, but maximum number to return is %d.\n",
  65                                 count,
  66                                 config.maxkeys);
  67                 puts("Try again with a more specific search.");
  68         }
  69 }
  70
  71 struct dump_ctx {
  72         int count;
  73         int maxcount;
  74         int fd;
  75         int filenum;
  76         char *filebase;
  77 };
  78
  79 void dump_func(void *ctx, struct openpgp_publickey *key)
  80 {
  81         struct openpgp_packet_list *packets = NULL;
  82         struct openpgp_packet_list *list_end = NULL;
  83         struct dump_ctx *state;
  84         char filename[1024];
  85
  86         state = (struct dump_ctx *) ctx;
  87
  88         if (state->fd == -1 || state->count++ > state->maxcount) {
  89                 if (state->fd != -1) {
  90                         close(state->fd);
  91                         state->fd = -1;
  92                 }
  93                 snprintf(filename, 1023, state->filebase, state->filenum);
  94                 state->fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0640);
  95                 state->filenum++;
  96                 state->count = 0;
  97         }
  98         flatten_publickey(key, &packets, &list_end);
  99         write_openpgp_stream(file_putchar, &state->fd, packets);
 100         free_packet_list(packets);
 101         packets = list_end = NULL;
 102
 103         return;
 104 }
 105
 106 void usage(void) {
 107         puts("onak " ONAK_VERSION " - an OpenPGP keyserver.\n");
 108         puts("Usage:\n");
 109         puts("\tonak [options] <command> <parameters>\n");
 110         puts("\tCommands:\n");
 111         puts("\tadd      - read armored OpenPGP keys from stdin and add to the"
 112                 " keyserver");
 113         puts("\tclean    - read armored OpenPGP keys from stdin, run the"
 114                 " cleaning\n\t             routines against them and dump to"
 115                 " stdout");
 116         puts("\tdelete   - delete a given key from the keyserver");
 117         puts("\tdump     - dump all the keys from the keyserver to a file or"
 118                 " files\n\t           starting keydump*");
 119         puts("\tget      - retrieves the key requested from the keyserver");
 120         puts("\tgetphoto - retrieves the first photoid on the given key and"
 121                 " dumps to\n\t           stdout");
 122         puts("\tindex    - search for a key and list it");
 123         puts("\tvindex   - search for a key and list it and its signatures");
 124 }
 125
 126 int main(int argc, char *argv[])
 127 {
 128         struct openpgp_packet_list      *packets = NULL;
 129         struct openpgp_packet_list      *list_end = NULL;
 130         struct openpgp_publickey        *keys = NULL;
 131         char                            *configfile = NULL;
 132         int                              rc = EXIT_SUCCESS;
 133         int                              result = 0;
 134         char                            *search = NULL;
 135         char                            *end = NULL;
 136         uint64_t                         keyid = 0;
 137         bool                             ishex = false;
 138         bool                             verbose = false;
 139         bool                             update = false;
 140         bool                             binary = false;
 141         bool                             fingerprint = false;
 142         bool                             skshash = false;
 143         int                              optchar;
 144         struct dump_ctx                  dumpstate;
 145         struct skshash                   hash;
 146
 147         while ((optchar = getopt(argc, argv, "bc:fsuv")) != -1 ) {
 148                 switch (optchar) {
 149                 case 'b':
 150                         binary = true;
 151                         break;
 152                 case 'c':
 153                         configfile = strdup(optarg);
 154                         break;
 155                 case 'f':
 156                         fingerprint = true;
 157                         break;
 158                 case 's':
 159                         skshash = true;
 160                         break;
 161                 case 'u':
 162                         update = true;
 163                         break;
 164                 case 'v':
 165                         verbose = true;
 166                         setlogthreshold(LOGTHING_INFO);
 167                         break;
 168                 }
 169         }
 170
 171         readconfig(configfile);
 172         initlogthing("onak", config.logfile);
 173         catchsignals();
 174
 175         if ((argc - optind) < 1) {
 176                 usage();
 177         } else if (!strcmp("dump", argv[optind])) {
 178                 config.dbbackend->initdb(true);
 179                 dumpstate.count = dumpstate.filenum = 0;
 180                 dumpstate.maxcount = 100000;
 181                 dumpstate.fd = -1;
 182                 dumpstate.filebase = "keydump.%d.pgp";
 183                 config.dbbackend->iterate_keys(dump_func, &dumpstate);
 184                 if (dumpstate.fd != -1) {
 185                         close(dumpstate.fd);
 186                         dumpstate.fd = -1;
 187                 }
 188                 config.dbbackend->cleanupdb();
 189         } else if (!strcmp("add", argv[optind])) {
 190                 if (binary) {
 191                         result = read_openpgp_stream(stdin_getchar, NULL,
 192                                  &packets, 0);
 193                         logthing(LOGTHING_INFO,
 194                                         "read_openpgp_stream: %d", result);
 195                 } else {
 196                         dearmor_openpgp_stream(stdin_getchar, NULL, &packets);
 197                 }
 198                 if (packets != NULL) {
 199                         result = parse_keys(packets, &keys);
 200                         free_packet_list(packets);
 201                         packets = NULL;
 202                         logthing(LOGTHING_INFO, "Finished reading %d keys.",
 203                                         result);
 204
 205                         result = cleankeys(keys);
 206                         logthing(LOGTHING_INFO, "%d keys cleaned.",
 207                                         result);
 208
 209                         config.dbbackend->initdb(false);
 210                         logthing(LOGTHING_NOTICE, "Got %d new keys.",
 211                                         config.dbbackend->update_keys(&keys,
 212                                         false));
 213                         if (keys != NULL && update) {
 214                                 flatten_publickey(keys,
 215                                         &packets,
 216                                         &list_end);
 217                                 if (binary) {
 218                                         write_openpgp_stream(stdout_putchar,
 219                                                         NULL,
 220                                                         packets);
 221                                 } else {
 222                                         armor_openpgp_stream(stdout_putchar,
 223                                                 NULL,
 224                                                 packets);
 225                                 }
 226                                 free_packet_list(packets);
 227                                 packets = NULL;
 228                         }
 229                         config.dbbackend->cleanupdb();
 230                 } else {
 231                         rc = 1;
 232                         logthing(LOGTHING_NOTICE, "No keys read.");
 233                 }
 234
 235                 if (keys != NULL) {
 236                         free_publickey(keys);
 237                         keys = NULL;
 238                 } else {
 239                         rc = 1;
 240                         logthing(LOGTHING_NOTICE, "No changes.");
 241                 }
 242         } else if (!strcmp("clean", argv[optind])) {
 243                 if (binary) {
 244                         result = read_openpgp_stream(stdin_getchar, NULL,
 245                                  &packets, 0);
 246                         logthing(LOGTHING_INFO,
 247                                         "read_openpgp_stream: %d", result);
 248                 } else {
 249                         dearmor_openpgp_stream(stdin_getchar, NULL, &packets);
 250                 }
 251
 252                 if (packets != NULL) {
 253                         result = parse_keys(packets, &keys);
 254                         free_packet_list(packets);
 255                         packets = NULL;
 256                         logthing(LOGTHING_INFO, "Finished reading %d keys.",
 257                                         result);
 258
 259                         if (keys != NULL) {
 260                                 result = cleankeys(keys);
 261                                 logthing(LOGTHING_INFO, "%d keys cleaned.",
 262                                                 result);
 263
 264                                 flatten_publickey(keys,
 265                                         &packets,
 266                                         &list_end);
 267
 268                                 if (binary) {
 269                                         write_openpgp_stream(stdout_putchar,
 270                                                         NULL,
 271                                                         packets);
 272                                 } else {
 273                                         armor_openpgp_stream(stdout_putchar,
 274                                                 NULL,
 275                                                 packets);
 276                                 }
 277                                 free_packet_list(packets);
 278                                 packets = NULL;
 279                         }
 280                 } else {
 281                         rc = 1;
 282                         logthing(LOGTHING_NOTICE, "No keys read.");
 283                 }
 284
 285                 if (keys != NULL) {
 286                         free_publickey(keys);
 287                         keys = NULL;
 288                 }
 289         } else if ((argc - optind) == 2) {
 290                 search = argv[optind+1];
 291                 if (search != NULL && strlen(search) == 42 &&
 292                                 search[0] == '0' && search[1] == 'x') {
 293                         /*
 294                          * Fingerprint. Truncate to last 64 bits for
 295                          * now.
 296                          */
 297                         keyid = strtoull(&search[26], &end, 16);
 298                         if (end != NULL && *end == 0) {
 299                                 ishex = true;
 300                         }
 301                 } else if (search != NULL) {
 302                         keyid = strtoul(search, &end, 16);
 303                         if (*search != 0 &&
 304                                         end != NULL &&
 305                                         *end == 0) {
 306                                 ishex = true;
 307                         }
 308                 }
 309                 config.dbbackend->initdb(false);
 310                 if (!strcmp("index", argv[optind])) {
 311                         find_keys(search, keyid, ishex, fingerprint, skshash,
 312                                         false, false);
 313                 } else if (!strcmp("vindex", argv[optind])) {
 314                         find_keys(search, keyid, ishex, fingerprint, skshash,
 315                                         false, true);
 316                 } else if (!strcmp("getphoto", argv[optind])) {
 317                         if (!ishex) {
 318                                 puts("Can't get a key on uid text."
 319                                         " You must supply a keyid.");
 320                         } else if (config.dbbackend->fetch_key(keyid, &keys,
 321                                         false)) {
 322                                 unsigned char *photo = NULL;
 323                                 size_t         length = 0;
 324
 325                                 if (getphoto(keys, 0, &photo, &length)) {
 326                                         fwrite(photo,
 327                                                 1,
 328                                                 length,
 329                                                 stdout);
 330                                 }
 331                                 free_publickey(keys);
 332                                 keys = NULL;
 333                         } else {
 334                                 puts("Key not found");
 335                         }
 336                 } else if (!strcmp("delete", argv[optind])) {
 337                         config.dbbackend->delete_key(
 338                                         config.dbbackend->getfullkeyid(keyid),
 339                                         false);
 340                 } else if (!strcmp("get", argv[optind])) {
 341                         if (!ishex) {
 342                                 puts("Can't get a key on uid text."
 343                                         " You must supply a keyid.");
 344                         } else if (config.dbbackend->fetch_key(keyid, &keys,
 345                                         false)) {
 346                                 logthing(LOGTHING_INFO, "Got key.");
 347                                 flatten_publickey(keys,
 348                                                 &packets,
 349                                                 &list_end);
 350                                 free_publickey(keys);
 351                                 if (binary) {
 352                                         write_openpgp_stream(stdout_putchar,
 353                                                 NULL,
 354                                                 packets);
 355                                 } else {
 356                                         armor_openpgp_stream(stdout_putchar,
 357                                                 NULL,
 358                                                 packets);
 359                                 }
 360                                 free_packet_list(packets);
 361                                 packets = NULL;
 362                         } else {
 363                                 puts("Key not found");
 364                         }
 365                 } else if (!strcmp("hget", argv[optind])) {
 366                         if (!parse_skshash(search, &hash)) {
 367                                 puts("Couldn't parse sks hash.");
 368                         } else if (config.dbbackend->fetch_key_skshash(&hash,
 369                                         &keys)) {
 370                                 logthing(LOGTHING_INFO, "Got key.");
 371                                 flatten_publickey(keys,
 372                                                 &packets,
 373                                                 &list_end);
 374                                 free_publickey(keys);
 375                                 if (binary) {
 376                                         write_openpgp_stream(stdout_putchar,
 377                                                 NULL,
 378                                                 packets);
 379                                 } else {
 380                                         armor_openpgp_stream(stdout_putchar,
 381                                                 NULL,
 382                                                 packets);
 383                                 }
 384                                 free_packet_list(packets);
 385                                 packets = NULL;
 386                         } else {
 387                                 puts("Key not found");
 388                         }
 389                 }
 390                 config.dbbackend->cleanupdb();
 391         } else {
 392                 usage();
 393         }
 394
 395         cleanuplogthing();
 396         cleanupconfig();
 397
 398         return rc;
 399 }