/* * Deals with the authorizer (group 0x0017=23, and old-style non-SNAC login). * */ #include #include "md5.h" static int aim_encode_password(const char *password, unsigned char *encoded); /* * This just pushes the passed cookie onto the passed connection, without * the SNAC header or any of that. * * Very commonly used, as every connection except auth will require this to * be the first thing you send. * */ int aim_sendcookie(aim_session_t *sess, aim_conn_t *conn, const guint8 *chipsahoy) { aim_frame_t *fr; aim_tlvlist_t *tl = NULL; if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x0001, 4+2+2+AIM_COOKIELEN))) return -ENOMEM; aimbs_put32(&fr->data, 0x00000001); aim_addtlvtochain_raw(&tl, 0x0006, AIM_COOKIELEN, chipsahoy); aim_writetlvchain(&fr->data, &tl); aim_freetlvchain(&tl); aim_tx_enqueue(sess, fr); return 0; } /* * Normally the FLAP version is sent as the first few bytes of the cookie, * meaning you generally never call this. * * But there are times when something might want it seperate. Specifically, * libfaim sends this internally when doing SNAC login. * */ int aim_sendflapver(aim_session_t *sess, aim_conn_t *conn) { aim_frame_t *fr; if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x01, 4))) return -ENOMEM; aimbs_put32(&fr->data, 0x00000001); aim_tx_enqueue(sess, fr); return 0; } /* * This is a bit confusing. * * Normal SNAC login goes like this: * - connect * - server sends flap version * - client sends flap version * - client sends screen name (17/6) * - server sends hash key (17/7) * - client sends auth request (17/2 -- aim_send_login) * - server yells * * XOR login (for ICQ) goes like this: * - connect * - server sends flap version * - client sends auth request which contains flap version (aim_send_login) * - server yells * * For the client API, we make them implement the most complicated version, * and for the simpler version, we fake it and make it look like the more * complicated process. * * This is done by giving the client a faked key, just so we can convince * them to call aim_send_login right away, which will detect the session * flag that says this is XOR login and ignore the key, sending an ICQ * login request instead of the normal SNAC one. * * As soon as AOL makes ICQ log in the same way as AIM, this is /gone/. * * XXX This may cause problems if the client relies on callbacks only * being called from the context of aim_rxdispatch()... * */ static int goddamnicq(aim_session_t *sess, aim_conn_t *conn, const char *sn) { aim_frame_t fr; aim_rxcallback_t userfunc; sess->flags &= ~AIM_SESS_FLAGS_SNACLOGIN; sess->flags |= AIM_SESS_FLAGS_XORLOGIN; fr.conn = conn; if ((userfunc = aim_callhandler(sess, conn, 0x0017, 0x0007))) userfunc(sess, &fr, ""); return 0; } /* * 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). * */ int aim_request_login(aim_session_t *sess, aim_conn_t *conn, const char *sn) { aim_frame_t *fr; aim_snacid_t snacid; aim_tlvlist_t *tl = NULL; if (!sess || !conn || !sn) return -EINVAL; if ((sn[0] >= '0') && (sn[0] <= '9')) return goddamnicq(sess, conn, sn); sess->flags |= AIM_SESS_FLAGS_SNACLOGIN; aim_sendflapver(sess, conn); if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 10+2+2+strlen(sn)))) return -ENOMEM; snacid = aim_cachesnac(sess, 0x0017, 0x0006, 0x0000, NULL, 0); aim_putsnac(&fr->data, 0x0017, 0x0006, 0x0000, snacid); aim_addtlvtochain_raw(&tl, 0x0001, strlen(sn), (guint8 *)sn); aim_writetlvchain(&fr->data, &tl); aim_freetlvchain(&tl); aim_tx_enqueue(sess, fr); return 0; } /* * Part two of the ICQ hack. Note the ignoring of the key and clientinfo. */ static int goddamnicq2(aim_session_t *sess, aim_conn_t *conn, const char *sn, const char *password) { static const char clientstr[] = {"ICQ Inc. - Product of ICQ (TM) 2001b.5.17.1.3642.85"}; static const char lang[] = {"en"}; static const char country[] = {"us"}; aim_frame_t *fr; aim_tlvlist_t *tl = NULL; guint8 *password_encoded; if (!(password_encoded = (guint8 *) g_malloc(strlen(password)))) return -ENOMEM; if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x01, 1152))) { g_free(password_encoded); return -ENOMEM; } aim_encode_password(password, password_encoded); aimbs_put32(&fr->data, 0x00000001); aim_addtlvtochain_raw(&tl, 0x0001, strlen(sn), (guint8 *)sn); aim_addtlvtochain_raw(&tl, 0x0002, strlen(password), password_encoded); aim_addtlvtochain_raw(&tl, 0x0003, strlen(clientstr), (guint8 *)clientstr); aim_addtlvtochain16(&tl, 0x0016, 0x010a); /* cliend ID */ aim_addtlvtochain16(&tl, 0x0017, 0x0005); /* major version */ aim_addtlvtochain16(&tl, 0x0018, 0x0011); /* minor version */ aim_addtlvtochain16(&tl, 0x0019, 0x0001); /* point version */ aim_addtlvtochain16(&tl, 0x001a, 0x0e3a); /* build */ aim_addtlvtochain32(&tl, 0x0014, 0x00000055); /* distribution chan */ aim_addtlvtochain_raw(&tl, 0x000f, strlen(lang), (guint8 *)lang); aim_addtlvtochain_raw(&tl, 0x000e, strlen(country), (guint8 *)country); aim_writetlvchain(&fr->data, &tl); g_free(password_encoded); aim_freetlvchain(&tl); aim_tx_enqueue(sess, fr); return 0; } /* * send_login(int socket, char *sn, char *password) * * This is the initial login request packet. * * NOTE!! If you want/need to make use of the aim_sendmemblock() function, * then the client information you send here must exactly match the * executable that you're pulling the data from. * * WinAIM 4.8.2540 * clientstring = "AOL Instant Messenger (SM), version 4.8.2540/WIN32" * clientid = 0x0109 * major = 0x0004 * minor = 0x0008 * point = 0x0000 * build = 0x09ec * t(0x0014) = 0x000000af * t(0x004a) = 0x01 * * WinAIM 4.3.2188: * clientstring = "AOL Instant Messenger (SM), version 4.3.2188/WIN32" * clientid = 0x0109 * major = 0x0400 * minor = 0x0003 * point = 0x0000 * build = 0x088c * unknown = 0x00000086 * lang = "en" * country = "us" * unknown4a = 0x01 * * Latest WinAIM that libfaim can emulate without server-side buddylists: * clientstring = "AOL Instant Messenger (SM), version 4.1.2010/WIN32" * clientid = 0x0004 * major = 0x0004 * minor = 0x0001 * point = 0x0000 * build = 0x07da * unknown= 0x0000004b * * WinAIM 3.5.1670: * clientstring = "AOL Instant Messenger (SM), version 3.5.1670/WIN32" * clientid = 0x0004 * major = 0x0003 * minor = 0x0005 * point = 0x0000 * build = 0x0686 * unknown =0x0000002a * * Java AIM 1.1.19: * clientstring = "AOL Instant Messenger (TM) version 1.1.19 for Java built 03/24/98, freeMem 215871 totalMem 1048567, i686, Linus, #2 SMP Sun Feb 11 03:41:17 UTC 2001 2.4.1-ac9, IBM Corporation, 1.1.8, 45.3, Tue Mar 27 12:09:17 PST 2001" * clientid = 0x0001 * major = 0x0001 * minor = 0x0001 * point = (not sent) * build = 0x0013 * unknown= (not sent) * * AIM for Linux 1.1.112: * clientstring = "AOL Instant Messenger (SM)" * clientid = 0x1d09 * major = 0x0001 * minor = 0x0001 * point = 0x0001 * build = 0x0070 * unknown= 0x0000008b * serverstore = 0x01 * */ int aim_send_login(aim_session_t *sess, aim_conn_t *conn, const char *sn, const char *password, struct client_info_s *ci, const char *key) { aim_frame_t *fr; aim_tlvlist_t *tl = NULL; guint8 digest[16]; aim_snacid_t snacid; if (!ci || !sn || !password) return -EINVAL; /* * What the XORLOGIN flag _really_ means is that its an ICQ login, * which is really stupid and painful, so its not done here. * */ if (sess->flags & AIM_SESS_FLAGS_XORLOGIN) return goddamnicq2(sess, conn, sn
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