--- a/libpurple/protocols/yahoo/libymsg.c Sat Jan 18 16:30:55 2014 -0800 +++ b/libpurple/protocols/yahoo/libymsg.c Sun Jan 19 11:30:49 2014 -0800 @@ -21,6 +21,12 @@ * */ +/* + * Note: When handling the list of struct yahoo_pair's from an incoming + * packet the value might not be UTF-8. You should either validate that + * it is UTF-8 using g_utf8_validate() or use yahoo_string_decode(). + */ + #include "internal.h" #include "account.h" @@ -592,14 +598,24 @@ yd->current_list15_grp = yahoo_string_decode(gc, pair->value, FALSE); break; case 7: /* buddy's s/n */ - g_free(temp); - temp = g_strdup(purple_normalize(account, pair->value)); + if (g_utf8_validate(pair->value, -1, NULL)) { + g_free(temp); + temp = g_strdup(purple_normalize(account, pair->value)); + } else { + purple_debug_warning("yahoo", "yahoo_process_list_15 " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 241: /* user on federated network */ fed = strtol(pair->value, NULL, 10); break; case 59: /* somebody told cookies come here too, but im not sure */ - yahoo_process_cookie(yd, pair->value); + if (g_utf8_validate(pair->value, -1, NULL)) { + yahoo_process_cookie(yd, pair->value); + } else { + purple_debug_warning("yahoo", "yahoo_process_list_15 " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 317: /* Stealth Setting */ stealth = strtol(pair->value, NULL, 10); @@ -662,22 +678,42 @@ g_string_append(yd->tmp_serv_blist, pair->value); break; case 88: - if (!yd->tmp_serv_ilist) - yd->tmp_serv_ilist = g_string_new(pair->value); - else - g_string_append(yd->tmp_serv_ilist, pair->value); + if (g_utf8_validate(pair->value, -1, NULL)) { + if (!yd->tmp_serv_ilist) + yd->tmp_serv_ilist = g_string_new(pair->value); + else + g_string_append(yd->tmp_serv_ilist, pair->value); + } else { + purple_debug_warning("yahoo", "yahoo_process_list " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 89: - yd->profiles = g_strsplit(pair->value, ",", -1); + if (g_utf8_validate(pair->value, -1, NULL)) { + yd->profiles = g_strsplit(pair->value, ",", -1); + } else { + purple_debug_warning("yahoo", "yahoo_process_list " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 59: /* cookies, yum */ - yahoo_process_cookie(yd, pair->value); + if (g_utf8_validate(pair->value, -1, NULL)) { + yahoo_process_cookie(yd, pair->value); + } else { + purple_debug_warning("yahoo", "yahoo_process_list " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case YAHOO_SERVICE_PRESENCE_PERM: - if (!yd->tmp_serv_plist) - yd->tmp_serv_plist = g_string_new(pair->value); - else - g_string_append(yd->tmp_serv_plist, pair->value); + if (g_utf8_validate(pair->value, -1, NULL)) { + if (!yd->tmp_serv_plist) + yd->tmp_serv_plist = g_string_new(pair->value); + else + g_string_append(yd->tmp_serv_plist, pair->value); + } else { + purple_debug_warning("yahoo", "yahoo_process_list " + "got non-UTF-8 string for key %d\n", pair->key); + } break; } } @@ -700,6 +736,12 @@ grp = yahoo_string_decode(gc, split[0], FALSE); buddies = g_strsplit(split[1], ",", -1); for (bud = buddies; bud && *bud; bud++) { + if (!g_utf8_validate(*bud, -1, NULL)) { + purple_debug_warning("yahoo", "yahoo_process_list " + "got non-UTF-8 string for bud\n"); + continue; + } + norm_bud = g_strdup(purple_normalize(account, *bud)); f = yahoo_friend_find_or_new(gc, norm_bud); @@ -794,14 +836,26 @@ while (l) { struct yahoo_pair *pair = l->data; - if (pair->key == 4 || pair->key == 1) - from = pair->value; + if (pair->key == 4 || pair->key == 1) { + if (g_utf8_validate(pair->value, -1, NULL)) { + from = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_notify " + "got non-UTF-8 string for key %d\n", pair->key); + } + } if (pair->key == 49) msg = pair->value; if (pair->key == 13) stat = pair->value; - if (pair->key == 14) - game = pair->value; + if (pair->key == 14) { + if (g_utf8_validate(pair->value, -1, NULL)) { + game = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_notify " + "got non-UTF-8 string for key %d\n", pair->key); + } + } if (pair->key == 11) val_11 = strtol(pair->value, NULL, 10); if (pair->key == 241) @@ -905,10 +959,15 @@ while (l != NULL) { struct yahoo_pair *pair = l->data; if (pair->key == 4) { - sms = g_new0(struct _yahoo_im, 1); - sms->from = g_strdup_printf("+%s", pair->value); - sms->time = time(NULL); - sms->utf8 = TRUE; + if (g_utf8_validate(pair->value, -1, NULL)) { + sms = g_new0(struct _yahoo_im, 1); + sms->from = g_strdup_printf("+%s", pair->value); + sms->time = time(NULL); + sms->utf8 = TRUE; + } else { + purple_debug_warning("yahoo", "yahoo_process_sms_message " + "got non-UTF-8 string for key %d\n", pair->key); + } } if (pair->key == 14) { if (sms) @@ -917,8 +976,14 @@ if (pair->key == 68) if(sms) g_hash_table_insert(yd->sms_carrier, g_strdup(sms->from), g_strdup(pair->value)); - if (pair->key == 16) - server_msg = pair->value; + if (pair->key == 16) { + if (g_utf8_validate(pair->value, -1, NULL)) { + server_msg = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_sms_message " + "got non-UTF-8 string for key %d\n", pair->key); + } + } l = l->next; } @@ -972,13 +1037,18 @@ while (l != NULL) { struct yahoo_pair *pair = l->data; if (pair->key == 4 || pair->key == 1) { - im = g_new0(struct _yahoo_im, 1); - list = g_slist_append(list, im); - im->from = pair->value; - im->time = time(NULL); - im->utf8 = TRUE; - im->fed = YAHOO_FEDERATION_NONE; - im->fed_from = g_strdup(im->from); + if (g_utf8_validate(pair->value, -1, NULL)) { + im = g_new0(struct _yahoo_im, 1); + list = g_slist_append(list, im); + im->from = pair->value; + im->time = time(NULL); + im->utf8 = TRUE; + im->fed = YAHOO_FEDERATION_NONE; + im->fed_from = g_strdup(im->from); + } else { + purple_debug_warning("yahoo", "yahoo_process_message " + "got non-UTF-8 string for key %d\n", pair->key); + } } if (im && pair->key == 5) im->active_id = pair->value; @@ -1034,7 +1104,7 @@ } } /* IMV key */ - if (im && pair->key == 63) + if (im && pair->key == 63 && g_utf8_validate(pair->value, -1, NULL)) { /* Check for the Doodle IMV, no IMvironment for federated buddies */ if (im->from != NULL && im->fed == YAHOO_FEDERATION_NONE) @@ -1170,10 +1240,22 @@ while (l) { struct yahoo_pair *pair = l->data; - if (pair->key == 5) - me = pair->value; - if (pair->key == 14) - msg = pair->value; + if (pair->key == 5) { + if (g_utf8_validate(pair->value, -1, NULL)) { + me = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_sysmessage " + "got non-UTF-8 string for key %d\n", pair->key); + } + } + if (pair->key == 14) { + if (g_utf8_validate(pair->value, -1, NULL)) { + msg = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_sysmessage " + "got non-UTF-8 string for key %d\n", pair->key); + } + } l = l->next; } @@ -1331,7 +1413,12 @@ switch (pair->key) { case 4: - temp = pair->value; + if (g_utf8_validate(pair->value, -1, NULL)) { + temp = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_buddy_auth_req_15 " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 13: response = strtol(pair->value, NULL, 10); @@ -1386,22 +1473,42 @@ switch (pair->key) { case 4: - temp = pair->value; + if (g_utf8_validate(pair->value, -1, NULL)) { + temp = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_buddy_auth_req_15 " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 5: - add_req->id = g_strdup(pair->value); + if (g_utf8_validate(pair->value, -1, NULL)) { + add_req->id = g_strdup(pair->value); + } else { + purple_debug_warning("yahoo", "yahoo_buddy_auth_req_15 " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 14: msg = pair->value; break; case 216: - firstname = pair->value; + if (g_utf8_validate(pair->value, -1, NULL)) { + firstname = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_buddy_auth_req_15 " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 241: add_req->fed = strtol(pair->value, NULL, 10); break; case 254: - lastname = pair->value; + if (g_utf8_validate(pair->value, -1, NULL)) { + lastname = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_buddy_auth_req_15 " + "got non-UTF-8 string for key %d\n", pair->key); + } break; } @@ -1482,10 +1589,20 @@ switch (pair->key) { case 1: - add_req->id = g_strdup(pair->value); + if (g_utf8_validate(pair->value, -1, NULL)) { + add_req->id = g_strdup(pair->value); + } else { + purple_debug_warning("yahoo", "yahoo_buddy_added_us " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 3: - add_req->who = g_strdup(pair->value); + if (g_utf8_validate(pair->value, -1, NULL)) { + add_req->who = g_strdup(pair->value); + } else { + purple_debug_warning("yahoo", "yahoo_buddy_added_us " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 15: /* time, for when they add us and we're offline */ break; @@ -1537,10 +1654,20 @@ switch (pair->key) { case 3: - who = pair->value; + if (g_utf8_validate(pair->value, -1, NULL)) { + who = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_buddy_denied_our_add_old " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 14: - msg = pair->value; + if (g_utf8_validate(pair->value, -1, NULL)) { + msg = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_buddy_denied_our_add_old " + "got non-UTF-8 string for key %d\n", pair->key); + } break; } l = l->next; @@ -1637,12 +1764,28 @@ struct yahoo_pair *pair = l->data; if (pair->key == 9) count = strtol(pair->value, NULL, 10); - else if (pair->key == 43) - who = pair->value; - else if (pair->key == 42) - email = pair->value; - else if (pair->key == 18) - subj = pair->value; + else if (pair->key == 43) { + if (g_utf8_validate(pair->value, -1, NULL)) { + who = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_mail " + "got non-UTF-8 string for key %d\n", pair->key); + } + } else if (pair->key == 42) { + if (g_utf8_validate(pair->value, -1, NULL)) { + email = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_mail " + "got non-UTF-8 string for key %d\n", pair->key); + } + } else if (pair->key == 18) { + if (g_utf8_validate(pair->value, -1, NULL)) { + subj = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_mail " + "got non-UTF-8 string for key %d\n", pair->key); + } + } l = l->next; } @@ -2077,10 +2220,22 @@ while (l) { struct yahoo_pair *pair = l->data; - if (pair->key == 94) - seed = pair->value; - if (pair->key == 1) - sn = pair->value; + if (pair->key == 94) { + if (g_utf8_validate(pair->value, -1, NULL)) { + seed = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_auth " + "got non-UTF-8 string for key %d\n", pair->key); + } + } + if (pair->key == 1) { + if (g_utf8_validate(pair->value, -1, NULL)) { + sn = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_auth " + "got non-UTF-8 string for key %d\n", pair->key); + } + } if (pair->key == 13) m = atoi(pair->value); l = l->next; @@ -2152,10 +2307,20 @@ struct yahoo_pair *pair = l->data; switch (pair->key) { case 0: - who = pair->value; + if (g_utf8_validate(pair->value, -1, NULL)) { + who = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_ignore " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 1: - me = pair->value; + if (g_utf8_validate(pair->value, -1, NULL)) { + me = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_ignore " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 13: /* 1 == ignore, 2 == unignore */ @@ -2224,8 +2389,14 @@ if (pair->key == 66) err = strtol(pair->value, NULL, 10); - else if (pair->key == 20) - url = pair->value; + else if (pair->key == 20) { + if (g_utf8_validate(pair->value, -1, NULL)) { + url = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_authresp " + "got non-UTF-8 string for key %d\n", pair->key); + } + } l = l->next; } @@ -2313,7 +2484,12 @@ err = strtol(pair->value, NULL, 10); break; case 7: - temp = pair->value; + if (g_utf8_validate(pair->value, -1, NULL)) { + temp = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_addbuddy " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 65: group = pair->value; @@ -2470,11 +2646,16 @@ switch (pair->key) { case 4: - who = pair->value; - if(strncmp(who, p2p_data->host_username, strlen(p2p_data->host_username)) != 0) { - /* from whom are we receiving the packets ?? */ - purple_debug_warning("yahoo","p2p: received data from wrong user\n"); - return; + if (g_utf8_validate(pair->value, -1, NULL)) { + who = pair->value; + if(strncmp(who, p2p_data->host_username, strlen(p2p_data->host_username)) != 0) { + /* from whom are we receiving the packets ?? */ + purple_debug_warning("yahoo","p2p: received data from wrong user\n"); + return; + } + } else { + purple_debug_warning("yahoo", "yahoo_p2p_process_p2pfilexfer " + "got non-UTF-8 string for key %d\n", pair->key); } break; case 13: @@ -2863,15 +3044,25 @@ /* our identity */ break; case 4: - who = pair->value; + if (g_utf8_validate(pair->value, -1, NULL)) { + who = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_p2p " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 1: /* who again, the master identity this time? */ break; case 12: - base64 = pair->value; - /* so, this is an ip address. in base64. decoded it's in ascii. - after strtol, it's in reversed byte order. Who thought this up?*/ + if (g_utf8_validate(pair->value, -1, NULL)) { + base64 = pair->value; + /* so, this is an ip address. in base64. decoded it's in ascii. + after strtol, it's in reversed byte order. Who thought this up?*/ + } else { + purple_debug_warning("yahoo", "yahoo_process_p2p " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 13: val_13 = strtol(pair->value, NULL, 10); @@ -2960,7 +3151,12 @@ switch (pair->key) { case 4: - who = pair->value; + if (g_utf8_validate(pair->value, -1, NULL)) { + who = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_audible " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 5: /* us */ @@ -2968,11 +3164,21 @@ case 230: /* the audible, in foo.locale.bar.baz format eg: base.tw.smiley.smiley43 */ - id = pair->value; + if (g_utf8_validate(pair->value, -1, NULL)) { + id = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_audible " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 231: /* the text of the audible */ - msg = pair->value; + if (g_utf8_validate(pair->value, -1, NULL)) { + msg = pair->value; + } else { + purple_debug_warning("yahoo", "yahoo_process_audible " + "got non-UTF-8 string for key %d\n", pair->key); + } break; case 232: /* SHA-1 hash of audible SWF file (eg: 4e8691499d9c0fb8374478ff9720f4a9ea4a4915) */