static void silcpurple_chat_getinfo(PurpleConnection *gc, GHashTable *components) { SilcPurple sg = gc->proto_data; const char *chname; char tmp[256], *tmp2; GString *s; SilcChannelEntry channel; SilcHashTableList htl; SilcChannelUser chu; if (!components) return; chname = g_hash_table_lookup(components, "channel"); if (!chname) return; channel = silc_client_get_channel(sg->client, sg->conn, (char *)chname); if (!channel) { silc_client_get_channel_resolve(sg->client, sg->conn, (char *)chname, silcpurple_chat_getinfo_res, components); return; } s = g_string_new(""); tmp2 = g_markup_escape_text(channel->channel_name, -1); g_string_append_printf(s, _("<b>Channel Name:</b> %s"), tmp2); g_free(tmp2); if (channel->user_list && silc_hash_table_count(channel->user_list)) g_string_append_printf(s, _("<br><b>User Count:</b> %d"), (int)silc_hash_table_count(channel->user_list)); silc_hash_table_list(channel->user_list, &htl); while (silc_hash_table_get(&htl, NULL, (void *)&chu)) { if (chu->mode & SILC_CHANNEL_UMODE_CHANFO) { tmp2 = g_markup_escape_text(chu->client->nickname, -1); g_string_append_printf(s, _("<br><b>Channel Founder:</b> %s"), tmp2); g_free(tmp2); break; } } silc_hash_table_list_reset(&htl); if (channel->cipher) g_string_append_printf(s, _("<br><b>Channel Cipher:</b> %s"), channel->cipher); if (channel->hmac) /* Definition of HMAC: http://en.wikipedia.org/wiki/HMAC */ g_string_append_printf(s, _("<br><b>Channel HMAC:</b> %s"), channel->hmac); if (channel->topic) { tmp2 = g_markup_escape_text(channel->topic, -1); g_string_append_printf(s, _("<br><b>Channel Topic:</b><br>%s"), tmp2); g_free(tmp2); } if (channel->mode) { g_string_append_printf(s, _("<br><b>Channel Modes:</b> ")); silcpurple_get_chmode_string(channel->mode, tmp, sizeof(tmp)); g_string_append(s, tmp); } if (channel->founder_key) { char *fingerprint, *babbleprint; unsigned char *pk; SilcUInt32 pk_len; pk = silc_pkcs_public_key_encode(channel->founder_key, &pk_len); if (pk) { fingerprint = silc_hash_fingerprint(NULL, pk, pk_len); babbleprint = silc_hash_babbleprint(NULL, pk, pk_len); g_string_append_printf(s, _("<br><b>Founder Key Fingerprint:</b><br>%s"), fingerprint); g_string_append_printf(s, _("<br><b>Founder Key Babbleprint:</b><br>%s"), babbleprint); silc_free(fingerprint); silc_free(babbleprint); silc_free(pk); } } purple_notify_formatted(gc, NULL, _("Channel Information"), NULL, s->str, NULL, NULL); g_string_free(s, TRUE); }
void silcpurple_verify_public_key(SilcClient client, SilcClientConnection conn, const char *name, SilcConnectionType conn_type, SilcPublicKey public_key, SilcVerifyPublicKey completion, void *context) { PurpleConnection *gc = client->application; int i; char file[256], filename[256], filename2[256], *ipf, *hostf = NULL; char *fingerprint, *babbleprint; struct passwd *pw; struct stat st; char *entity = ((conn_type == SILC_CONN_SERVER || conn_type == SILC_CONN_ROUTER) ? "server" : "client"); PublicKeyVerify verify; const char *ip, *hostname; SilcUInt16 port; unsigned char *pk; SilcUInt32 pk_len; if (silc_pkcs_get_type(public_key) != SILC_PKCS_SILC) { purple_notify_error(gc, _("Verify Public Key"), _("Unsupported public key type"), NULL); if (completion) completion(FALSE, context); return; } pw = getpwuid(getuid()); if (!pw) { if (completion) completion(FALSE, context); return; } memset(filename, 0, sizeof(filename)); memset(filename2, 0, sizeof(filename2)); memset(file, 0, sizeof(file)); silc_socket_stream_get_info(silc_packet_stream_get_stream(conn->stream), NULL, &hostname, &ip, &port); pk = silc_pkcs_public_key_encode(public_key, &pk_len); if (!pk) { if (completion) completion(FALSE, context); return; } if (conn_type == SILC_CONN_SERVER || conn_type == SILC_CONN_ROUTER) { if (!name) { g_snprintf(file, sizeof(file) - 1, "%skey_%s_%d.pub", entity, ip, port); g_snprintf(filename, sizeof(filename) - 1, "%s" G_DIR_SEPARATOR_S "%skeys" G_DIR_SEPARATOR_S "%s", silcpurple_silcdir(), entity, file); g_snprintf(file, sizeof(file) - 1, "%skey_%s_%d.pub", entity, hostname, port); g_snprintf(filename2, sizeof(filename2) - 1, "%s" G_DIR_SEPARATOR_S "%skeys" G_DIR_SEPARATOR_S "%s", silcpurple_silcdir(), entity, file); ipf = filename; hostf = filename2; } else { g_snprintf(file, sizeof(file) - 1, "%skey_%s_%d.pub", entity, name, port); g_snprintf(filename, sizeof(filename) - 1, "%s" G_DIR_SEPARATOR_S "%skeys" G_DIR_SEPARATOR_S "%s", silcpurple_silcdir(), entity, file); ipf = filename; } } else { /* Replace all whitespaces with `_'. */ fingerprint = silc_hash_fingerprint(NULL, pk, pk_len); for (i = 0; i < strlen(fingerprint); i++) if (fingerprint[i] == ' ') fingerprint[i] = '_'; g_snprintf(file, sizeof(file) - 1, "%skey_%s.pub", entity, fingerprint); g_snprintf(filename, sizeof(filename) - 1, "%s" G_DIR_SEPARATOR_S "%skeys" G_DIR_SEPARATOR_S "%s", silcpurple_silcdir(), entity, file); silc_free(fingerprint); ipf = filename; } verify = silc_calloc(1, sizeof(*verify)); if (!verify) return; verify->client = client; verify->conn = conn; verify->filename = g_strdup(ipf); verify->entity = g_strdup(entity); verify->entity_name = (conn_type != SILC_CONN_CLIENT ? (name ? g_strdup(name) : g_strdup(hostname)) : NULL); verify->public_key = silc_pkcs_public_key_copy(public_key); verify->completion = completion; verify->context = context; fingerprint = verify->fingerprint = silc_hash_fingerprint(NULL, pk, pk_len); babbleprint = verify->babbleprint = silc_hash_babbleprint(NULL, pk, pk_len); /* Check whether this key already exists */ if (g_stat(ipf, &st) < 0 && (!hostf || g_stat(hostf, &st) < 0)) { /* Key does not exist, ask user to verify the key and save it */ silcpurple_verify_ask(name ? name : entity, fingerprint, babbleprint, verify); return; } else { /* The key already exists, verify it. */ SilcPublicKey public_key; unsigned char *encpk; SilcUInt32 encpk_len; /* Load the key file, try for both IP filename and hostname filename */ if (!silc_pkcs_load_public_key(ipf, &public_key) && (!hostf || (!silc_pkcs_load_public_key(hostf, &public_key)))) { silcpurple_verify_ask(name ? name : entity, fingerprint, babbleprint, verify); return; } /* Encode the key data */ encpk = silc_pkcs_public_key_encode(public_key, &encpk_len); if (!encpk) { silcpurple_verify_ask(name ? name : entity, fingerprint, babbleprint, verify); return; } /* Compare the keys */ if (memcmp(encpk, pk, encpk_len)) { /* Ask user to verify the key and save it */ verify->changed = TRUE; silcpurple_verify_ask(name ? name : entity, fingerprint, babbleprint, verify); return; } /* Local copy matched */ if (completion) completion(TRUE, context); g_free(verify->filename); g_free(verify->entity); g_free(verify->entity_name); silc_free(verify->fingerprint); silc_free(verify->babbleprint); silc_pkcs_public_key_free(verify->public_key); silc_free(verify); } }
void silcpurple_show_public_key(SilcPurple sg, const char *name, SilcPublicKey public_key, GCallback callback, void *context) { SilcPublicKeyIdentifier ident; SilcSILCPublicKey silc_pubkey; char *fingerprint, *babbleprint; unsigned char *pk; SilcUInt32 pk_len, key_len = 0; GString *s; /* We support showing only SILC public keys for now */ if (silc_pkcs_get_type(public_key) != SILC_PKCS_SILC) return; silc_pubkey = silc_pkcs_get_context(SILC_PKCS_SILC, public_key); ident = &silc_pubkey->identifier; key_len = silc_pkcs_public_key_get_len(public_key); pk = silc_pkcs_public_key_encode(public_key, &pk_len); if (!pk) return; fingerprint = silc_hash_fingerprint(NULL, pk, pk_len); babbleprint = silc_hash_babbleprint(NULL, pk, pk_len); if (!fingerprint || !babbleprint) return; s = g_string_new(""); if (ident->realname) /* Hint for translators: Please check the tabulator width here and in the next strings (short strings: 2 tabs, longer strings 1 tab, sum: 3 tabs or 24 characters) */ g_string_append_printf(s, _("Real Name: \t%s\n"), ident->realname); if (ident->username) g_string_append_printf(s, _("User Name: \t%s\n"), ident->username); if (ident->email) g_string_append_printf(s, _("Email: \t\t%s\n"), ident->email); if (ident->host) g_string_append_printf(s, _("Host Name: \t%s\n"), ident->host); if (ident->org) g_string_append_printf(s, _("Organization: \t%s\n"), ident->org); if (ident->country) g_string_append_printf(s, _("Country: \t%s\n"), ident->country); g_string_append_printf(s, _("Algorithm: \t%s\n"), silc_pubkey->pkcs->name); g_string_append_printf(s, _("Key Length: \t%d bits\n"), (int)key_len); if (ident->version) g_string_append_printf(s, _("Version: \t%s\n"), ident->version); g_string_append_printf(s, "\n"); g_string_append_printf(s, _("Public Key Fingerprint:\n%s\n\n"), fingerprint); g_string_append_printf(s, _("Public Key Babbleprint:\n%s"), babbleprint); purple_request_action(sg->gc, _("Public Key Information"), _("Public Key Information"), s->str, 0, purple_connection_get_account(sg->gc), NULL, NULL, context, 1, _("Close"), callback); g_string_free(s, TRUE); silc_free(fingerprint); silc_free(babbleprint); silc_free(pk); }
static void silcpurple_add_buddy_save(bool success, void *context) { SilcPurpleBuddyRes r = context; PurpleBuddy *b = r->b; SilcClient client = r->client; SilcClientEntry client_entry; SilcAttributePayload attr; SilcAttribute attribute; SilcVCardStruct vcard; SilcAttributeObjMime message, extension; #ifdef SILC_ATTRIBUTE_USER_ICON SilcAttributeObjMime usericon; #endif SilcAttributeObjPk serverpk, usersign, serversign; gboolean usign_success = TRUE, ssign_success = TRUE; char filename[512], filename2[512], *fingerprint = NULL, *tmp; SilcUInt32 len; int i; if (!success) { /* The user did not trust the public key. */ silcpurple_add_buddy_pk_no(r); silc_free(r); return; } if (r->offline) { /* User is offline. Associate the imported public key with this user. */ fingerprint = silc_hash_fingerprint(NULL, r->offline_pk, r->offline_pk_len); for (i = 0; i < strlen(fingerprint); i++) if (fingerprint[i] == ' ') fingerprint[i] = '_'; g_snprintf(filename, sizeof(filename) - 1, "%s" G_DIR_SEPARATOR_S "clientkeys" G_DIR_SEPARATOR_S "clientkey_%s.pub", silcpurple_silcdir(), fingerprint); purple_blist_node_set_string((PurpleBlistNode *)b, "public-key", filename); purple_prpl_got_user_status(purple_buddy_get_account(r->b), purple_buddy_get_name(r->b), SILCPURPLE_STATUS_ID_OFFLINE, NULL); silc_free(fingerprint); silc_free(r->offline_pk); silc_free(r); return; } /* Get the client entry. */ client_entry = silc_client_get_client_by_id(r->client, r->conn, &r->client_id); if (!client_entry) { silc_free(r); return; } memset(&vcard, 0, sizeof(vcard)); memset(&message, 0, sizeof(message)); memset(&extension, 0, sizeof(extension)); #ifdef SILC_ATTRIBUTE_USER_ICON memset(&usericon, 0, sizeof(usericon)); #endif memset(&serverpk, 0, sizeof(serverpk)); memset(&usersign, 0, sizeof(usersign)); memset(&serversign, 0, sizeof(serversign)); /* Now that we have the public key and we trust it now we save the attributes of the buddy and update its status. */ if (client_entry->attrs) { silc_dlist_start(client_entry->attrs); while ((attr = silc_dlist_get(client_entry->attrs)) != SILC_LIST_END) { attribute = silc_attribute_get_attribute(attr); switch (attribute) { case SILC_ATTRIBUTE_USER_INFO: if (!silc_attribute_get_object(attr, (void *)&vcard, sizeof(vcard))) continue; break; case SILC_ATTRIBUTE_STATUS_MESSAGE: if (!silc_attribute_get_object(attr, (void *)&message, sizeof(message))) continue; break; case SILC_ATTRIBUTE_EXTENSION: if (!silc_attribute_get_object(attr, (void *)&extension, sizeof(extension))) continue; break; #ifdef SILC_ATTRIBUTE_USER_ICON case SILC_ATTRIBUTE_USER_ICON: if (!silc_attribute_get_object(attr, (void *)&usericon, sizeof(usericon))) continue; break; #endif case SILC_ATTRIBUTE_SERVER_PUBLIC_KEY: if (serverpk.type) continue; if (!silc_attribute_get_object(attr, (void *)&serverpk, sizeof(serverpk))) continue; break; case SILC_ATTRIBUTE_USER_DIGITAL_SIGNATURE: if (usersign.data) continue; if (!silc_attribute_get_object(attr, (void *)&usersign, sizeof(usersign))) continue; break; case SILC_ATTRIBUTE_SERVER_DIGITAL_SIGNATURE: if (serversign.data) continue; if (!silc_attribute_get_object(attr, (void *)&serversign, sizeof(serversign))) continue; break; default: break; } } } /* Verify the attribute signatures */ if (usersign.data) { SilcPKCS pkcs; unsigned char *verifyd; SilcUInt32 verify_len; silc_pkcs_alloc((unsigned char*)"rsa", &pkcs); verifyd = silc_attribute_get_verify_data(client_entry->attrs, FALSE, &verify_len); if (verifyd && silc_pkcs_public_key_set(pkcs, client_entry->public_key)){ if (!silc_pkcs_verify_with_hash(pkcs, client->sha1hash, usersign.data, usersign.data_len, verifyd, verify_len)) usign_success = FALSE; } silc_free(verifyd); } if (serversign.data && purple_strequal(serverpk.type, "silc-rsa")) { SilcPublicKey public_key; SilcPKCS pkcs; unsigned char *verifyd; SilcUInt32 verify_len; if (silc_pkcs_public_key_decode(serverpk.data, serverpk.data_len, &public_key)) { silc_pkcs_alloc((unsigned char *)"rsa", &pkcs); verifyd = silc_attribute_get_verify_data(client_entry->attrs, TRUE, &verify_len); if (verifyd && silc_pkcs_public_key_set(pkcs, public_key)) { if (!silc_pkcs_verify_with_hash(pkcs, client->sha1hash, serversign.data, serversign.data_len, verifyd, verify_len)) ssign_success = FALSE; } silc_pkcs_public_key_free(public_key); silc_free(verifyd); } } fingerprint = silc_fingerprint(client_entry->fingerprint, client_entry->fingerprint_len); for (i = 0; i < strlen(fingerprint); i++) if (fingerprint[i] == ' ') fingerprint[i] = '_'; if (usign_success || ssign_success) { struct passwd *pw; struct stat st; memset(filename2, 0, sizeof(filename2)); /* Filename for dir */ tmp = fingerprint + strlen(fingerprint) - 9; g_snprintf(filename, sizeof(filename) - 1, "%s" G_DIR_SEPARATOR_S "friends" G_DIR_SEPARATOR_S "%s", silcpurple_silcdir(), tmp); pw = getpwuid(getuid()); if (!pw) return; /* Create dir if it doesn't exist */ if ((g_stat(filename, &st)) == -1) { if (errno == ENOENT) { if (pw->pw_uid == geteuid()) { int ret = g_mkdir(filename, 0755); if (ret < 0) return; } } } /* Save VCard */ g_snprintf(filename2, sizeof(filename2) - 1, "%s" G_DIR_SEPARATOR_S "vcard", filename); if (vcard.full_name) { tmp = (char *)silc_vcard_encode(&vcard, &len); silc_file_writefile(filename2, tmp, len); silc_free(tmp); } /* Save status message */ if (message.mime) { memset(filename2, 0, sizeof(filename2)); g_snprintf(filename2, sizeof(filename2) - 1, "%s" G_DIR_SEPARATOR_S "status_message.mime", filename); silc_file_writefile(filename2, (char *)message.mime, message.mime_len); } /* Save extension data */ if (extension.mime) { memset(filename2, 0, sizeof(filename2)); g_snprintf(filename2, sizeof(filename2) - 1, "%s" G_DIR_SEPARATOR_S "extension.mime", filename); silc_file_writefile(filename2, (char *)extension.mime, extension.mime_len); } #ifdef SILC_ATTRIBUTE_USER_ICON /* Save user icon */ if (usericon.mime) { SilcMime m = silc_mime_decode(usericon.mime, usericon.mime_len); if (m) { const char *type = silc_mime_get_field(m, "Content-Type"); if (purple_strequal(type, "image/jpeg") || purple_strequal(type, "image/gif") || purple_strequal(type, "image/bmp") || purple_strequal(type, "image/png")) { const unsigned char *data; SilcUInt32 data_len; data = silc_mime_get_data(m, &data_len); if (data) { /* TODO: Check if SILC gives us something to use as the checksum instead */ purple_buddy_icons_set_for_user(purple_buddy_get_account(r->b), purple_buddy_get_name(r->b), g_memdup(data, data_len), data_len, NULL); } } silc_mime_free(m); } } #endif } /* Save the public key path to buddy properties, as it is used to identify the buddy in the network (and not the nickname). */ memset(filename, 0, sizeof(filename)); g_snprintf(filename, sizeof(filename) - 1, "%s" G_DIR_SEPARATOR_S "clientkeys" G_DIR_SEPARATOR_S "clientkey_%s.pub", silcpurple_silcdir(), fingerprint); purple_blist_node_set_string((PurpleBlistNode *)b, "public-key", filename); /* Update online status */ purple_prpl_got_user_status(purple_buddy_get_account(r->b), purple_buddy_get_name(r->b), SILCPURPLE_STATUS_ID_AVAILABLE, NULL); /* Finally, start watching this user so we receive its status changes from the server */ g_snprintf(filename2, sizeof(filename2) - 1, "+%s", filename); silc_client_command_call(r->client, r->conn, NULL, "WATCH", "-pubkey", filename2, NULL); silc_free(fingerprint); silc_free(r); }