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);
}
