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