#include <faim/aim.h>
+#include "md5.h"
+
+static int aim_encode_password_md5(const char *password, const char *key, md5_byte_t *digest);
/*
* FIXME: Reimplement the TIS stuff.
#include "tis_telnet_proxy.h"
#endif
+faim_export int aim_sendconnack(struct aim_session_t *sess,
+ struct aim_conn_t *conn)
+{
+ int curbyte=0;
+
+ struct command_tx_struct *newpacket;
+
+ if (!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0001, conn, 4)))
+ return -1;
+
+ newpacket->lock = 1;
+
+ curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000);
+ curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001);
+
+ newpacket->lock = 0;
+ return aim_tx_enqueue(sess, newpacket);
+}
+
+/*
+ * In AIM 3.5 protocol, the first stage of login is to request
+ * login from the Authorizer, passing it the screen name
+ * for verification. If the name is invalid, a 0017/0003
+ * is spit back, with the standard error contents. If valid,
+ * a 0017/0007 comes back, which is the signal to send
+ * it the main login command (0017/0002).
+ */
+faim_export int aim_request_login(struct aim_session_t *sess,
+ struct aim_conn_t *conn,
+ char *sn)
+{
+ int curbyte=0;
+
+ struct command_tx_struct *newpacket;
+
+ if (!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 10+2+2+strlen(sn))))
+ return -1;
+
+ newpacket->lock = 1;
+
+ curbyte += aim_putsnac(newpacket->data+curbyte, 0x0017, 0x0006, 0x0000, 0x00010000);
+ curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0001, strlen(sn), sn);
+
+ newpacket->lock = 0;
+ return aim_tx_enqueue(sess, newpacket);
+}
+
/*
* send_login(int socket, char *sn, char *password)
*
* stupid method of doing it.
*
*/
-int aim_send_login (struct aim_session_t *sess,
- struct aim_conn_t *conn,
- char *sn, char *password, struct client_info_s *clientinfo)
+faim_export int aim_send_login (struct aim_session_t *sess,
+ struct aim_conn_t *conn,
+ char *sn, char *password,
+ struct client_info_s *clientinfo,
+ char *key)
{
- u_char *password_encoded = NULL; /* to store encoded password */
int curbyte=0;
+ md5_byte_t digest[16];
+
+ struct command_tx_struct *newpacket;
- struct command_tx_struct newpacket;
+ if (!clientinfo || !sn || !password)
+ return -1;
- if (conn)
- newpacket.conn = conn;
- else
- newpacket.conn = aim_getconn_type(sess, AIM_CONN_TYPE_AUTH);
-
- newpacket.commandlen = 4 + 4+strlen(sn) + 4+strlen(password) + 6;
-
- if (clientinfo)
- {
- if (strlen(clientinfo->clientstring))
- newpacket.commandlen += 4+strlen(clientinfo->clientstring);
- newpacket.commandlen += 6+6+6;
- if (strlen(clientinfo->country))
- newpacket.commandlen += 4+strlen(clientinfo->country);
- if (strlen(clientinfo->lang))
- newpacket.commandlen += 4+strlen(clientinfo->lang);
- }
- newpacket.commandlen += 6;
-
- newpacket.data = (char *) calloc (1, newpacket.commandlen );
- newpacket.lock = 1;
- newpacket.type = 0x01;
-
- curbyte += aimutil_put16(newpacket.data+curbyte, 0x0000);
- curbyte += aimutil_put16(newpacket.data+curbyte, 0x0001);
- curbyte += aimutil_put16(newpacket.data+curbyte, 0x0001);
- curbyte += aimutil_put16(newpacket.data+curbyte, strlen(sn));
- curbyte += aimutil_putstr(newpacket.data+curbyte, sn, strlen(sn));
-
- curbyte += aimutil_put16(newpacket.data+curbyte, 0x0002);
- curbyte += aimutil_put16(newpacket.data+curbyte, strlen(password));
- password_encoded = (char *) malloc(strlen(password));
- aim_encode_password(password, password_encoded);
- curbyte += aimutil_putstr(newpacket.data+curbyte, password_encoded, strlen(password));
- free(password_encoded);
+ if (!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 1152)))
+ return -1;
+
+ newpacket->lock = 1;
+
+ newpacket->hdr.oscar.type = 0x02;
+
+ curbyte = aim_putsnac(newpacket->data+curbyte, 0x0017, 0x0002, 0x0000, 0x00010000);
+
+ curbyte+= aim_puttlv_str(newpacket->data+curbyte, 0x0001, strlen(sn), sn);
- curbyte += aim_puttlv_16(newpacket.data+curbyte, 0x0016, 0x0001);
+ aim_encode_password_md5(password, key, digest);
+ curbyte+= aim_puttlv_str(newpacket->data+curbyte, 0x0025, 16, (char *)digest);
- if (clientinfo)
- {
- if (strlen(clientinfo->clientstring))
- {
- curbyte += aimutil_put16(newpacket.data+curbyte, 0x0003);
- curbyte += aimutil_put16(newpacket.data+curbyte, strlen(clientinfo->clientstring));
- curbyte += aimutil_putstr(newpacket.data+curbyte, clientinfo->clientstring, strlen(clientinfo->clientstring));
- }
- curbyte += aim_puttlv_16(newpacket.data+curbyte, 0x0017, 0x0001);
- curbyte += aim_puttlv_16(newpacket.data+curbyte, 0x0018, 0x0001);
- curbyte += aim_puttlv_16(newpacket.data+curbyte, 0x001a, 0x0013);
- if (strlen(clientinfo->country))
- {
- curbyte += aimutil_put16(newpacket.data+curbyte, 0x000e);
- curbyte += aimutil_put16(newpacket.data+curbyte, strlen(clientinfo->country));
- curbyte += aimutil_putstr(newpacket.data+curbyte, clientinfo->country, strlen(clientinfo->country));
- }
- if (strlen(clientinfo->lang))
- {
- curbyte += aimutil_put16(newpacket.data+curbyte, 0x000f);
- curbyte += aimutil_put16(newpacket.data+curbyte, strlen(clientinfo->lang));
- curbyte += aimutil_putstr(newpacket.data+curbyte, clientinfo->lang, strlen(clientinfo->lang));
- }
- }
-
- curbyte += aim_puttlv_16(newpacket.data+curbyte, 0x0009, 0x0015);
-
- newpacket.lock = 0;
- aim_tx_enqueue(sess, &newpacket);
+ /* XXX is clientstring required by oscar? */
+ if (strlen(clientinfo->clientstring))
+ curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0003, strlen(clientinfo->clientstring), clientinfo->clientstring);
+
+ curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0016, (unsigned short)clientinfo->major2);
+ curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0017, (unsigned short)clientinfo->major);
+ curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0018, (unsigned short)clientinfo->minor);
+ curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0019, (unsigned short)clientinfo->minor2);
+ curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x001a, (unsigned short)clientinfo->build);
+
+ curbyte += aim_puttlv_32(newpacket->data+curbyte, 0x0014, clientinfo->unknown);
+ curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0009, 0x0015);
+
+ if (strlen(clientinfo->country))
+ curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000e, strlen(clientinfo->country), clientinfo->country);
+ else
+ curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000e, 2, "us");
+
+ if (strlen(clientinfo->lang))
+ curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000f, strlen(clientinfo->lang), clientinfo->lang);
+ else
+ curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000f, 2, "en");
+
+ newpacket->commandlen = curbyte;
+
+ newpacket->lock = 0;
+ return aim_tx_enqueue(sess, newpacket);
+}
+
+static int aim_encode_password_md5(const char *password, const char *key, md5_byte_t *digest)
+{
+ md5_state_t state;
+
+ md5_init(&state);
+ md5_append(&state, (const md5_byte_t *)key, strlen(key));
+ md5_append(&state, (const md5_byte_t *)password, strlen(password));
+ md5_append(&state, (const md5_byte_t *)AIM_MD5_STRING, strlen(AIM_MD5_STRING));
+ md5_finish(&state, (md5_byte_t *)digest);
return 0;
}
* The encoding_table seems to be a fixed set of values. We'll
* hope it doesn't change over time!
*
+ * NOTE: This is no longer used. Its here for historical reference.
+ *
*/
-int aim_encode_password(const char *password, u_char *encoded)
+#if 0
+static int aim_encode_password(const char *password, unsigned char *encoded)
{
u_char encoding_table[] = {
+#if 0 /* old v1 table */
0xf3, 0xb3, 0x6c, 0x99,
0x95, 0x3f, 0xac, 0xb6,
0xc5, 0xfa, 0x6b, 0x63,
0x69, 0x6c, 0xc3, 0x9f
+#else /* v2.1 table, also works for ICQ */
+ 0xf3, 0x26, 0x81, 0xc4,
+ 0x39, 0x86, 0xdb, 0x92,
+ 0x71, 0xa3, 0xb9, 0xe6,
+ 0x53, 0x7a, 0x95, 0x7c
+#endif
};
int i;
return 0;
}
+#endif
+
+/*
+ * This is sent back as a general response to the login command.
+ * It can be either an error or a success, depending on the
+ * precense of certain TLVs.
+ *
+ * The client should check the value of logininfo->errorcode. If
+ * its nonzero, there was an error.
+ *
+ */
+faim_internal int aim_authparse(struct aim_session_t *sess,
+ struct command_rx_struct *command)
+{
+ struct aim_tlvlist_t *tlvlist;
+ int ret = 1;
+ char *sn;
+ rxcallback_t userfunc = NULL;
+
+ memset(&sess->logininfo, 0x00, sizeof(sess->logininfo));
+
+ /*
+ * Read block of TLVs. All further data is derived
+ * from what is parsed here.
+ *
+ * For SNAC login, there's a 17/3 SNAC header in front.
+ *
+ */
+ tlvlist = aim_readtlvchain(command->data+10, command->commandlen-10);
+
+ /*
+ * No matter what, we should have a screen name.
+ */
+ sn = aim_gettlv_str(tlvlist, 0x0001, 1);
+ strncpy(sess->logininfo.screen_name, sn, strlen(sn));
+ free(sn);
+
+ /*
+ * Check for an error code. If so, we should also
+ * have an error url.
+ */
+ if (aim_gettlv(tlvlist, 0x0008, 1)) {
+ struct aim_tlv_t *errtlv;
+ errtlv = aim_gettlv(tlvlist, 0x0008, 1);
+ sess->logininfo.errorcode = aimutil_get16(errtlv->value);
+ sess->logininfo.errorurl = aim_gettlv_str(tlvlist, 0x0004, 1);
+ }
+ /*
+ * If we have both an IP number (0x0005) and a cookie (0x0006),
+ * then the login was successful.
+ */
+ else if (aim_gettlv(tlvlist, 0x0005, 1) && aim_gettlv(tlvlist, 0x0006, 1)
+ /*aim_gettlv(tlvlist, 0x0006, 1)->length*/) {
+ struct aim_tlv_t *tmptlv;
+
+ /*
+ * IP address of BOS server.
+ */
+ sess->logininfo.BOSIP = aim_gettlv_str(tlvlist, 0x0005, 1);
+
+ /*
+ * Authorization Cookie
+ */
+ tmptlv = aim_gettlv(tlvlist, 0x0006, 1);
+ memcpy(sess->logininfo.cookie, tmptlv->value, AIM_COOKIELEN);
+
+ /*
+ * The email address attached to this account
+ * Not available for ICQ logins.
+ */
+ if (aim_gettlv(tlvlist, 0x0011, 1))
+ sess->logininfo.email = aim_gettlv_str(tlvlist, 0x0011, 1);
+
+ /*
+ * The registration status. (Not real sure what it means.)
+ * Not available for ICQ logins.
+ */
+ if ((tmptlv = aim_gettlv(tlvlist, 0x0013, 1)))
+ sess->logininfo.regstatus = aimutil_get16(tmptlv->value);
+
+ }
+
+ userfunc = aim_callhandler(command->conn, 0x0017, 0x0003);
+ if (userfunc)
+ ret = userfunc(sess, command);
+ aim_freetlvchain(&tlvlist);
+ if (sess->logininfo.BOSIP) {
+ free(sess->logininfo.BOSIP);
+ sess->logininfo.BOSIP = NULL;
+ }
+ if (sess->logininfo.email) {
+ free(sess->logininfo.email);
+ sess->logininfo.email = NULL;
+ }
+ if (sess->logininfo.errorurl) {
+ free(sess->logininfo.errorurl);
+ sess->logininfo.errorurl = NULL;
+ }
+ return ret;
+}
+
+/*
+ * Middle handler for 0017/0007 SNACs. Contains the auth key prefixed
+ * by only its length in a two byte word.
+ *
+ * Calls the client, which should then use the value to call aim_send_login.
+ *
+ */
+faim_internal int aim_authkeyparse(struct aim_session_t *sess, struct command_rx_struct *command)
+{
+ unsigned char *key;
+ int keylen;
+ int ret = 1;
+ rxcallback_t userfunc;
+
+ keylen = aimutil_get16(command->data+10);
+ if (!(key = malloc(keylen+1)))
+ return ret;
+ memcpy(key, command->data+12, keylen);
+ key[keylen] = '\0';
+
+ if ((userfunc = aim_callhandler(command->conn, 0x0017, 0x0007)))
+ ret = userfunc(sess, command, (char *)key);
+
+ free(key);
+
+ return ret;
+}
+
+/*
+ * Generate an authorization response.
+ *
+ * You probably don't want this unless you're writing an AIM server.
+ *
+ */
+faim_export unsigned long aim_sendauthresp(struct aim_session_t *sess,
+ struct aim_conn_t *conn,
+ char *sn, char *bosip,
+ char *cookie, char *email,
+ int regstatus)
+{
+ struct command_tx_struct *tx;
+ struct aim_tlvlist_t *tlvlist = NULL;
+
+ if (!(tx = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0004, conn, 1152)))
+ return -1;
+
+ tx->lock = 1;
+
+ if (sn)
+ aim_addtlvtochain_str(&tlvlist, 0x0001, sn, strlen(sn));
+ else
+ aim_addtlvtochain_str(&tlvlist, 0x0001, sess->logininfo.screen_name, strlen(sess->logininfo.screen_name));
+
+ if (sess->logininfo.errorcode) {
+ aim_addtlvtochain16(&tlvlist, 0x0008, sess->logininfo.errorcode);
+ aim_addtlvtochain_str(&tlvlist, 0x0004, sess->logininfo.errorurl, strlen(sess->logininfo.errorurl));
+ } else {
+ aim_addtlvtochain_str(&tlvlist, 0x0005, bosip, strlen(bosip));
+ aim_addtlvtochain_str(&tlvlist, 0x0006, cookie, AIM_COOKIELEN);
+ aim_addtlvtochain_str(&tlvlist, 0x0011, email, strlen(email));
+ aim_addtlvtochain16(&tlvlist, 0x0013, (unsigned short)regstatus);
+ }
+
+ tx->commandlen = aim_writetlvchain(tx->data, tx->commandlen, &tlvlist);
+ tx->lock = 0;
+ return aim_tx_enqueue(sess, tx);
+}
+
+/*
+ * Generate a random cookie. (Non-client use only)
+ */
+faim_export int aim_gencookie(unsigned char *buf)
+{
+ int i;
+
+ srand(time(NULL));
+
+ for (i=0; i < AIM_COOKIELEN; i++)
+ buf[i] = 1+(int) (256.0*rand()/(RAND_MAX+0.0));
+
+ return i;
+}
+
+/*
+ * Send Server Ready. (Non-client)
+ */
+faim_export int aim_sendserverready(struct aim_session_t *sess, struct aim_conn_t *conn)
+{
+ struct command_tx_struct *tx;
+ int i = 0;
+
+ if (!(tx = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 10+0x22)))
+ return -1;
+
+ tx->lock = 1;
+
+ i += aim_putsnac(tx->data, 0x0001, 0x0003, 0x0000, sess->snac_nextid++);
+
+ i += aimutil_put16(tx->data+i, 0x0001);
+ i += aimutil_put16(tx->data+i, 0x0002);
+ i += aimutil_put16(tx->data+i, 0x0003);
+ i += aimutil_put16(tx->data+i, 0x0004);
+ i += aimutil_put16(tx->data+i, 0x0006);
+ i += aimutil_put16(tx->data+i, 0x0008);
+ i += aimutil_put16(tx->data+i, 0x0009);
+ i += aimutil_put16(tx->data+i, 0x000a);
+ i += aimutil_put16(tx->data+i, 0x000b);
+ i += aimutil_put16(tx->data+i, 0x000c);
+ i += aimutil_put16(tx->data+i, 0x0013);
+ i += aimutil_put16(tx->data+i, 0x0015);
+
+ tx->commandlen = i;
+ tx->lock = 0;
+ return aim_tx_enqueue(sess, tx);
+}
+
+
+/*
+ * Send service redirect. (Non-Client)
+ */
+faim_export unsigned long aim_sendredirect(struct aim_session_t *sess,
+ struct aim_conn_t *conn,
+ unsigned short servid,
+ char *ip,
+ char *cookie)
+{
+ struct command_tx_struct *tx;
+ struct aim_tlvlist_t *tlvlist = NULL;
+ int i = 0;
+
+ if (!(tx = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 1152)))
+ return -1;
+
+ tx->lock = 1;
+
+ i += aim_putsnac(tx->data+i, 0x0001, 0x0005, 0x0000, 0x00000000);
+
+ aim_addtlvtochain16(&tlvlist, 0x000d, servid);
+ aim_addtlvtochain_str(&tlvlist, 0x0005, ip, strlen(ip));
+ aim_addtlvtochain_str(&tlvlist, 0x0006, cookie, AIM_COOKIELEN);
+
+ tx->commandlen = aim_writetlvchain(tx->data+i, tx->commandlen-i, &tlvlist)+i;
+ aim_freetlvchain(&tlvlist);
+
+ tx->lock = 0;
+ return aim_tx_enqueue(sess, tx);
+}