gpgwww.c

   1 /*
   2  * gpgwww.c - www interface to path finder.
   3  *
   4  * Jonathan McDowell <noodles@earth.li>
   5  *
   6  * Copyright 2001-2002 Project Purple.
   7  */
   8
   9 // #include <stdint.h>
  10 #include <inttypes.h>
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13
  14 #include "getcgi.h"
  15 #include "hash.h"
  16 #include "keydb.h"
  17 #include "stats.h"
  18
  19 void dofindpath(uint64_t have, uint64_t want, bool html)
  20 {
  21         struct stats_key *keyinfoa, *keyinfob, *curkey;
  22         int rec;
  23         char *uid;
  24
  25         /*
  26          * Make sure the keys we have and want are in the cache.
  27          */
  28         hash_getkeysigs(have);
  29         hash_getkeysigs(want);
  30
  31         if ((keyinfoa = findinhash(have)) == NULL) {
  32                 printf("Couldn't find key 0x%llX.\n", have);
  33                 return;
  34         }
  35         if ((keyinfob = findinhash(want)) == NULL) {
  36                 printf("Couldn't find key 0x%llX.\n", want);
  37                 return;
  38         }
  39
  40         /*
  41          * Fill the tree info up.
  42          */
  43         initcolour(true);
  44         rec = findpath(keyinfoa, keyinfob);
  45         keyinfob->parent = 0;
  46
  47         printf("%d nodes examined. %ld elements in the hash\n", rec,
  48                         hashelements());
  49         if (keyinfoa->colour == 0) {
  50                 printf("Can't find a link from 0x%llX to 0x%llX\n",
  51                                 have,
  52                                 want);
  53         } else {
  54                 printf("%d steps from 0x%llX to 0x%llX\n",
  55                                 keyinfoa->colour, have, want);
  56                 curkey = keyinfoa;
  57                 while (curkey != NULL && curkey->keyid != 0) {
  58                         uid = keyid2uid(curkey->keyid);
  59                         if (html && uid == NULL) {
  60                                 printf("<a href=\"lookup?op=get&search=%llX\">"
  61                                         "0x%llX</a> ([User id not found])%s)%s\n",
  62                                         curkey->keyid,
  63                                         curkey->keyid,
  64                                         (curkey->keyid == want) ? "" :
  65                                          " signs");
  66                         } else if (html && uid != NULL) {
  67                                 printf("<a href=\"lookup?op=get&search=%llX\">"
  68                                         "0x%llX</a> (<a href=\"lookup?op=vindex"
  69                                         "&search=0x%llX\">%s</a>)%s\n",
  70                                         curkey->keyid,
  71                                         curkey->keyid,
  72                                         curkey->keyid,
  73                                         txt2html(keyid2uid(curkey->keyid)),
  74                                         (curkey->keyid == want) ? "" :
  75                                          " signs");
  76                         } else {
  77                                 printf("0x%llX (%s)%s\n",
  78                                         curkey->keyid,
  79                                         (uid == NULL) ? "[User id not found]" :
  80                                                 uid,
  81                                         (curkey->keyid == want) ? "" :
  82                                          " signs");
  83                         }
  84                         curkey = findinhash(curkey->parent);
  85                 }
  86         }
  87 }
  88
  89 void parsecgistuff(char **cgiparams, uint64_t *from, uint64_t *to)
  90 {
  91         int i = 0;
  92
  93         if (cgiparams != NULL) {
  94                 i = 0;
  95                 while (cgiparams[i] != NULL) {
  96                         if (!strcmp(cgiparams[i], "to")) {
  97                                 *to = strtoul(cgiparams[i+1], NULL, 16);
  98                         } else if (!strcmp(cgiparams[i], "from")) {
  99                                 *from = strtoul(cgiparams[i+1], NULL, 16);
 100                         }
 101                         i += 2;
 102                 }
 103         }
 104
 105         return;
 106 }
 107
 108 int main(int argc, char *argv[])
 109 {
 110         char **cgiparams = NULL;        /* Our CGI parameter block */
 111         uint64_t from = 0, to = 0;
 112
 113         cgiparams = getcgivars(argc, argv);
 114
 115         puts("Content-Type: text/html\n");
 116         puts("<HTML>");
 117         puts("<HEAD>");
 118         puts("<TITLE>Experimental PGP key path finder results</TITLE>");
 119         puts("</HEAD>");
 120         puts("<BODY>");
 121         puts("</BODY>");
 122
 123         parsecgistuff(cgiparams, &from, &to);
 124
 125         if (from == 0 || to == 0) {
 126                 printf("Must pass from & to\n");
 127                 puts("</HTML>");
 128                 exit(1);
 129         }
 130
 131         printf("<P>Looking for path from 0x%llX to 0x%llX</P>\n", from, to);
 132         puts("<PRE>");
 133         initdb();
 134         inithash();
 135         dofindpath(from, to, true);
 136         cleanupdb();
 137         puts("</PRE>");
 138
 139         puts("<HR>");
 140         puts("Produced by gpgwww 0.0.1, part of onak. <A HREF=\"mailto:noodles-onak@earth.li\">Jonathan McDowell</A>");
 141         puts("</HTML>");
 142
 143         return EXIT_SUCCESS;
 144 }