diff options
Diffstat (limited to 'libotr-3.2.0/toolkit/otr_parse.c')
| -rw-r--r-- | libotr-3.2.0/toolkit/otr_parse.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/libotr-3.2.0/toolkit/otr_parse.c b/libotr-3.2.0/toolkit/otr_parse.c new file mode 100644 index 0000000..f3bcee4 --- /dev/null +++ b/libotr-3.2.0/toolkit/otr_parse.c @@ -0,0 +1,188 @@ +/* + * Off-the-Record Messaging Toolkit + * Copyright (C) 2004-2008 Ian Goldberg, Chris Alexander, Nikita Borisov + * <otr@cypherpunks.ca> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* system headers */ +#include <stdio.h> +#include <stdlib.h> + +/* libotr headers */ +#include "proto.h" + +/* toolkit headers */ +#include "readotr.h" +#include "parse.h" + +static void parse(const char *msg) +{ + OtrlMessageType mtype = otrl_proto_message_type(msg); + CommitMsg cmsg; + KeyMsg kmsg; + RevealSigMsg rmsg; + SignatureMsg smsg; + KeyExchMsg keyexch; + DataMsg datamsg; + + switch(mtype) { + case OTRL_MSGTYPE_QUERY: + printf("OTR Query:\n\t%s\n\n", msg); + break; + case OTRL_MSGTYPE_DH_COMMIT: + cmsg = parse_commit(msg); + if (!cmsg) { + printf("Invalid D-H Commit Message\n\n"); + break; + } + printf("D-H Commit Message:\n"); + dump_data(stdout, "\tEncrypted Key", cmsg->enckey, + cmsg->enckeylen); + dump_data(stdout, "\tHashed Key", cmsg->hashkey, + cmsg->hashkeylen); + printf("\n"); + free_commit(cmsg); + break; + case OTRL_MSGTYPE_DH_KEY: + kmsg = parse_key(msg); + if (!kmsg) { + printf("Invalid D-H Key Message\n\n"); + break; + } + printf("D-H Key Message:\n"); + dump_mpi(stdout, "\tD-H Key", kmsg->y); + printf("\n"); + free_key(kmsg); + break; + case OTRL_MSGTYPE_REVEALSIG: + rmsg = parse_revealsig(msg); + if (!rmsg) { + printf("Invalid Reveal Signature Message\n\n"); + break; + } + printf("Reveal Signature Message:\n"); + dump_data(stdout, "\tKey", rmsg->key, rmsg->keylen); + dump_data(stdout, "\tEncrypted Signature", + rmsg->encsig, rmsg->encsiglen); + dump_data(stdout, "\tMAC", rmsg->mac, 20); + printf("\n"); + free_revealsig(rmsg); + break; + case OTRL_MSGTYPE_SIGNATURE: + smsg = parse_signature(msg); + if (!smsg) { + printf("Invalid Signature Message\n\n"); + break; + } + printf("Signature Message:\n"); + dump_data(stdout, "\tEncrypted Signature", + smsg->encsig, smsg->encsiglen); + dump_data(stdout, "\tMAC", smsg->mac, 20); + printf("\n"); + free_signature(smsg); + break; + case OTRL_MSGTYPE_V1_KEYEXCH: + keyexch = parse_keyexch(msg); + if (!keyexch) { + printf("Invalid Key Exchange Message\n\n"); + break; + } + printf("Key Exchange Message:\n"); + dump_int(stdout, "\tReply", keyexch->reply); + dump_mpi(stdout, "\tDSA p", keyexch->p); + dump_mpi(stdout, "\tDSA q", keyexch->q); + dump_mpi(stdout, "\tDSA g", keyexch->g); + dump_mpi(stdout, "\tDSA e", keyexch->e); + dump_int(stdout, "\tKeyID", keyexch->keyid); + dump_mpi(stdout, "\tDH y", keyexch->y); + dump_mpi(stdout, "\tSIG r", keyexch->r); + dump_mpi(stdout, "\tSIG s", keyexch->s); + printf("\n"); + free_keyexch(keyexch); + break; + case OTRL_MSGTYPE_DATA: + datamsg = parse_datamsg(msg); + if (!datamsg) { + printf("Invalid Data Message\n\n"); + break; + } + printf("Data Message:\n"); + if (datamsg->flags >= 0) { + dump_int(stdout, "\tFlags", datamsg->flags); + } + dump_int(stdout, "\tSender keyid", datamsg->sender_keyid); + dump_int(stdout, "\tRcpt keyid", datamsg->rcpt_keyid); + dump_mpi(stdout, "\tDH y", datamsg->y); + dump_data(stdout, "\tCounter", datamsg->ctr, 8); + dump_data(stdout, "\tEncrypted message", datamsg->encmsg, + datamsg->encmsglen); + dump_data(stdout, "\tMAC", datamsg->mac, 20); + if (datamsg->mackeyslen > 0) { + size_t len = datamsg->mackeyslen; + unsigned char *mks = datamsg->mackeys; + unsigned int i = 0; + printf("\tRevealed MAC keys:\n"); + + while(len > 19) { + char title[20]; + sprintf(title, "\t\tKey %u", ++i); + dump_data(stdout, title, mks, 20); + mks += 20; len -= 20; + } + } + + printf("\n"); + free_datamsg(datamsg); + break; + case OTRL_MSGTYPE_ERROR: + printf("OTR Error:\n\t%s\n\n", msg); + break; + case OTRL_MSGTYPE_TAGGEDPLAINTEXT: + printf("Tagged plaintext message:\n\t%s\n\n", msg); + break; + case OTRL_MSGTYPE_NOTOTR: + printf("Not an OTR message:\n\t%s\n\n", msg); + break; + case OTRL_MSGTYPE_UNKNOWN: + printf("Unrecognized OTR message:\n\t%s\n\n", msg); + break; + } + fflush(stdout); +} + +static void usage(const char *progname) +{ + fprintf(stderr, "Usage: %s\n" +"Read Off-the-Record (OTR) Key Exchange and/or Data messages from stdin\n" +"and display their contents in a more readable format.\n", progname); + exit(1); +} + +int main(int argc, char **argv) +{ + char *otrmsg = NULL; + + if (argc != 1) { + usage(argv[0]); + } + + while ((otrmsg = readotr(stdin)) != NULL) { + parse(otrmsg); + free(otrmsg); + } + + return 0; +} |