lookup.c

   1 /*
   2  * lookup.c - CGI to lookup keys.
   3  *
   4  * Jonathan McDowell <noodles@earth.li>
   5  *
   6  * Copyright 2002 Project Purple
   7  */
   8
   9 #include <inttypes.h>
  10 #include <stdbool.h>
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <string.h>
  14 #include <unistd.h>
  15
  16 #include "armor.h"
  17 #include "charfuncs.h"
  18 #include "cleankey.h"
  19 #include "cleanup.h"
  20 #include "getcgi.h"
  21 #include "keydb.h"
  22 #include "keyindex.h"
  23 #include "log.h"
  24 #include "mem.h"
  25 #include "onak-conf.h"
  26 #include "parsekey.h"
  27 #include "photoid.h"
  28
  29 #define OP_UNKNOWN 0
  30 #define OP_GET     1
  31 #define OP_INDEX   2
  32 #define OP_VINDEX  3
  33 #define OP_PHOTO   4
  34
  35 void find_keys(char *search, uint64_t keyid, bool ishex,
  36                 bool fingerprint, bool exact, bool verbose, bool mrhkp)
  37 {
  38         struct openpgp_publickey *publickey = NULL;
  39         int count = 0;
  40
  41         if (ishex) {
  42                 count = fetch_key(keyid, &publickey, false);
  43         } else {
  44                 count = fetch_key_text(search, &publickey);
  45         }
  46         if (publickey != NULL) {
  47                 if (mrhkp) {
  48                         printf("info:1:%d\n", count);
  49                         mrkey_index(publickey);
  50                 } else {
  51                         key_index(publickey, verbose, fingerprint, true);
  52                 }
  53                 free_publickey(publickey);
  54         } else if (count == 0) {
  55                 if (mrhkp) {
  56                         puts("info:1:0");
  57                 } else {
  58                         puts("Key not found.");
  59                 }
  60         } else {
  61                 if (mrhkp) {
  62                         puts("info:1:0");
  63                 } else {
  64                         printf("Found %d keys, but maximum number to return"
  65                                 " is %d.\n",
  66                                 count,
  67                                 config.maxkeys);
  68                         puts("Try again with a more specific search.");
  69                 }
  70         }
  71 }
  72
  73 int main(int argc, char *argv[])
  74 {
  75         char **params = NULL;
  76         int op = OP_UNKNOWN;
  77         int i;
  78         int indx = 0;
  79         bool fingerprint = false;
  80         bool exact = false;
  81         bool ishex = false;
  82         bool mrhkp = false;
  83         uint64_t keyid = 0;
  84         char *search = NULL;
  85         char *end = NULL;
  86         struct openpgp_publickey *publickey = NULL;
  87         struct openpgp_packet_list *packets = NULL;
  88         struct openpgp_packet_list *list_end = NULL;
  89
  90         params = getcgivars(argc, argv);
  91         for (i = 0; params != NULL && params[i] != NULL; i += 2) {
  92                 if (!strcmp(params[i], "op")) {
  93                         if (!strcmp(params[i+1], "get")) {
  94                                 op = OP_GET;
  95                         } else if (!strcmp(params[i+1], "index")) {
  96                                 op = OP_INDEX;
  97                         } else if (!strcmp(params[i+1], "vindex")) {
  98                                 op = OP_VINDEX;
  99                         } else if (!strcmp(params[i+1], "photo")) {
 100                                 op = OP_PHOTO;
 101                         }
 102                 } else if (!strcmp(params[i], "search")) {
 103                         search = params[i+1];
 104                         params[i+1] = NULL;
 105                         if (search != NULL) {
 106                                 keyid = strtoul(search, &end, 16);
 107                                 if (*search != 0 &&
 108                                                 end != NULL &&
 109                                                 *end == 0) {
 110                                         ishex = true;
 111                                 }
 112                         }
 113                 } else if (!strcmp(params[i], "idx")) {
 114                         indx = atoi(params[i+1]);
 115                 } else if (!strcmp(params[i], "fingerprint")) {
 116                         if (!strcmp(params[i+1], "on")) {
 117                                 fingerprint = true;
 118                         }
 119                 } else if (!strcmp(params[i], "exact")) {
 120                         if (!strcmp(params[i+1], "on")) {
 121                                 exact = true;
 122                         }
 123                 } else if (!strcmp(params[i], "options")) {
 124                         /*
 125                          * TODO: We should be smarter about this; options may
 126                          * have several entries. For now mr is the only valid
 127                          * one though.
 128                          */
 129                         if (!strcmp(params[i+1], "mr")) {
 130                                 mrhkp = true;
 131                         }
 132                 }
 133                 free(params[i]);
 134                 params[i] = NULL;
 135                 if (params[i+1] != NULL) {
 136                         free(params[i+1]);
 137                         params[i+1] = NULL;
 138                 }
 139         }
 140         if (params != NULL) {
 141                 free(params);
 142                 params = NULL;
 143         }
 144
 145         if (mrhkp) {
 146                 puts("Content-Type: text/plain\n");
 147         } else if (op == OP_PHOTO) {
 148                 puts("Content-Type: image/jpeg\n");
 149         } else {
 150                 start_html("Lookup of key");
 151         }
 152
 153         if (op == OP_UNKNOWN) {
 154                 puts("Error: No operation supplied.");
 155         } else if (search == NULL) {
 156                 puts("Error: No key to search for supplied.");
 157         } else {
 158                 readconfig(NULL);
 159                 initlogthing("lookup", config.logfile);
 160                 catchsignals();
 161                 initdb(true);
 162                 switch (op) {
 163                 case OP_GET:
 164                         logthing(LOGTHING_NOTICE, "Getting keyid 0x%llX",
 165                                         keyid);
 166                         if (fetch_key(keyid, &publickey, false)) {
 167                                 puts("<pre>");
 168                                 cleankeys(publickey);
 169                                 flatten_publickey(publickey,
 170                                                         &packets,
 171                                                         &list_end);
 172                                 armor_openpgp_stream(stdout_putchar,
 173                                                 NULL,
 174                                                 packets);
 175                                 puts("</pre>");
 176                         } else {
 177                                 logthing(LOGTHING_NOTICE,
 178                                         "Failed to fetch key.");
 179                                 puts("Key not found");
 180                         }
 181                         break;
 182                 case OP_INDEX:
 183                         find_keys(search, keyid, ishex, fingerprint, exact,
 184                                         false, mrhkp);
 185                         break;
 186                 case OP_VINDEX:
 187                         find_keys(search, keyid, ishex, fingerprint, exact,
 188                                         true, mrhkp);
 189                         break;
 190                 case OP_PHOTO:
 191                         if (fetch_key(keyid, &publickey, false)) {
 192                                 unsigned char *photo = NULL;
 193                                 size_t         length = 0;
 194
 195                                 if (getphoto(publickey, 0, &photo, &length)) {
 196                                         fwrite(photo,
 197                                                         1,
 198                                                         length,
 199                                                         stdout);
 200                                 }
 201                                 free_publickey(publickey);
 202                                 publickey = NULL;
 203                         }
 204                         break;
 205                 default:
 206                         puts("Unknown operation!");
 207                 }
 208                 cleanupdb();
 209                 cleanuplogthing();
 210                 cleanupconfig();
 211         }
 212         if (!mrhkp) {
 213                 puts("<hr>");
 214                 puts("Produced by onak " VERSION " by Jonathan McDowell");
 215                 end_html();
 216         }
 217
 218         if (search != NULL) {
 219                 free(search);
 220                 search = NULL;
 221         }
 222
 223         return (EXIT_SUCCESS);
 224 }