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otr-plugin.c
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otr-plugin.c
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/*
f * Off-the-Record Messaging plugin for pidgin
* Copyright (C) 2004-2014 Ian Goldberg, Rob Smits,
* Chris Alexander, Willy Lew,
* Lisa Du, Nikita Borisov
* <otr@cypherpunks.ca>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* config.h */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
/* system headers */
#include <stdlib.h>
#include <string.h>
#include <assert.h>
/* libgcrypt headers */
#include <gcrypt.h>
/* purple headers */
#include "pidgin.h"
#include "notify.h"
#include "version.h"
#include "util.h"
#include "debug.h"
#include "core.h"
#ifdef USING_GTK
/* purple GTK headers */
#include "gtkplugin.h"
#endif
#ifdef ENABLE_NLS
#ifdef WIN32
/* On Win32, include win32dep.h from pidgin for correct definition
* of LOCALEDIR */
#include "win32dep.h"
#endif /* WIN32 */
/* internationalisation header */
#include <glib/gi18n-lib.h>
#else /* ENABLE_NLS */
#define _(x) (x)
#define N_(x) (x)
#endif /* ENABLE_NLS */
/* libotr headers */
#include <libotr/privkey.h>
#include <libotr/proto.h>
#include <libotr/tlv.h>
#include <libotr/message.h>
#include <libotr/userstate.h>
#include <libotr/instag.h>
/* DIMOKAS */
#include <libotr/chat_info.h>
#include <libotr/chat_protocol.h>
#include <libotr/chat_token.h>
#include <libotr/chat_types.h>
#include <libotr/chat_fingerprint.h>
/* ******* */
/* purple-otr headers */
#include "ui.h"
#include "dialogs.h"
#include "otr-plugin.h"
#ifdef USING_GTK
/* purple-otr GTK headers */
#include <glib.h>
#include "gtk-ui.h"
#include "gtk-dialog.h"
/* Controls a beta warning/expiry dialog */
#define BETA_DIALOG 0
#if BETA_DIALOG && defined USING_GTK /* Only for beta */
#include "gtkblist.h"
#endif
#endif
/* If we're using glib on Windows, we need to use g_fopen to open files.
* On other platforms, it's also safe to use it. If we're not using
* glib, just use fopen. */
#ifdef USING_GTK
/* If we're cross-compiling, this might be wrong, so fix it. */
#ifdef WIN32
#undef G_OS_UNIX
#define G_OS_WIN32
#endif
#include <glib/gstdio.h>
#else
#define g_fopen fopen
#endif
PurplePlugin *otrg_plugin_handle;
/* We'll only use the one OtrlUserState. */
OtrlUserState otrg_plugin_userstate = NULL;
/* GLib HashTable for storing the maximum message size for various
* protocols. */
GHashTable* mms_table = NULL;
/* Send an IM from the given account to the given recipient. Display an
* error dialog if that account isn't currently logged in. */
void otrg_plugin_inject_message(PurpleAccount *account, const char *recipient,
const char *message)
{
PurpleConnection *connection;
connection = purple_account_get_connection(account);
if (!connection) {
const char *protocol = purple_account_get_protocol_id(account);
const char *accountname = purple_account_get_username(account);
PurplePlugin *p = purple_find_prpl(protocol);
char *msg = g_strdup_printf(_("You are not currently connected to "
"account %s (%s)."), accountname,
(p && p->info->name) ? p->info->name : _("Unknown"));
otrg_dialog_notify_error(accountname, protocol, recipient,
_("Not connected"), msg, NULL);
g_free(msg);
return;
}
serv_send_im(connection, recipient, message, 0);
}
/* DIKOMAS */
int chat_token_to_chat_id(otrl_chat_token_t token)
{
return (int) token;
}
PurpleConversation *chat_info_to_purple_conversation(const OtrlChatInfoPtr info)
{
PurpleAccount *account;
PurpleConnection *connection;
PurpleConversation *conv;
char *accountname = NULL, *protocol = NULL;
otrl_chat_token_t chat_token;
int chat_id;
accountname = otrl_chat_info_get_accountname(info);
protocol = otrl_chat_info_get_protocol(info);
chat_token = otrl_chat_info_get_chat_token(info);
account = purple_accounts_find(accountname, protocol);
if(!account) { goto error; }
connection = purple_account_get_connection(account);
if(!connection) { goto error; }
chat_id = chat_token_to_chat_id(chat_token);
conv = purple_find_chat(connection, chat_id);
if(!conv) { goto error; }
return conv;
error:
return NULL;
}
int plugin_chat_inject_message(const OtrlChatInfoPtr info, const char *message)
{
PurpleConnection *connection;
PurpleAccount *account;
char *accountname = NULL, *protocol = NULL;
otrl_chat_token_t chat_token;
int chat_id, err;
accountname = otrl_chat_info_get_accountname(info);
protocol = otrl_chat_info_get_protocol(info);
chat_token = otrl_chat_info_get_chat_token(info);
account = purple_accounts_find(accountname, protocol);
if(!account) { goto error;}
chat_id = chat_token_to_chat_id(chat_token);
connection = purple_account_get_connection(account);
if (!connection) { goto error; }
err = serv_chat_send(connection, chat_id, message, 0);
if(err < 0) { goto error; }
return 0;
error:
return 1;
}
static int plugin_chat_inject_message_cb(void *opdata, const OtrlChatInfoPtr info, const char *message)
{
return plugin_chat_inject_message(info , message);
}
int chat_display_notification(const OtrlChatInfoPtr info, const char *notification)
{
PurpleConversation *conv;
conv = chat_info_to_purple_conversation(info);
if(!conv) { goto error; }
purple_conversation_write(conv, NULL, notification, PURPLE_MESSAGE_SYSTEM, time(NULL));
return 0;
error:
purple_debug_info("otr", "MPOTR: chat_display_notification: error\n");
return 1;
}
void chat_display_notification_cb(void *opdata, const OtrlChatInfoPtr info, const char *notification)
{
chat_display_notification(info, notification);
}
int chat_handle_event_with_notifiaction(const OtrlChatInfoPtr info, const OtrlChatEventPtr event)
{
OtrlChatEventType type;
OtrlChatEventParticipantDataPtr part_data;
OtrlChatEventMessageDataPtr msg_data;
gchar *msg = NULL;
char *username = NULL, *message = NULL;
int err;
type = otrl_chat_event_get_type(event);
switch(type) {
case OTRL_CHAT_EVENT_OFFER_RECEIVED:
part_data = otrl_chat_event_get_data(event);
username = otrl_chat_event_participant_data_get_username(part_data);
msg = g_strdup_printf (_("%s has requested a private session."), username);
if(!msg) { goto error; }
break;
case OTRL_CHAT_EVENT_STARTING:
msg = g_strdup_printf (_("Initializing a new private chat session..."));
if(!msg) { goto error; }
break;
case OTRL_CHAT_EVENT_STARTED:
msg = g_strdup_printf (_("The private session has started successfully."));
if(!msg) { goto error; }
break;
case OTRL_CHAT_EVENT_UNVERIFIED_PARTICIPANT:
part_data = otrl_chat_event_get_data(event);
username = otrl_chat_event_participant_data_get_username(part_data);
msg = g_strdup_printf (_("You have not verified the fingerprint of user: %s."), username);
if(!msg) { goto error; }
break;
case OTRL_CHAT_EVENT_PLAINTEXT_RECEIVED:
msg_data = otrl_chat_event_get_data(event);
username = otrl_chat_event_message_data_get_username(msg_data);
message = otrl_chat_event_message_data_get_message(msg_data);
msg = g_strdup_printf (_("<b>The following message received from %s was <i>not</i> encrypted: [</b>%s<b>]</b>"), username, message);
if(!msg) { goto error; }
break;
case OTRL_CHAT_EVENT_PRIVATE_RECEIVED:
part_data = otrl_chat_event_get_data(event);
username = otrl_chat_event_participant_data_get_username(part_data);
msg = g_strdup_printf (_("%s sent an encrypted message, while not in a private session."), username);
if(!msg) { goto error; }
break;
case OTRL_CHAT_EVENT_CONSENSUS_BROKEN:
part_data = otrl_chat_event_get_data(event);
username = otrl_chat_event_participant_data_get_username(part_data);
msg = g_strdup_printf (_("You do NOT have consensus with %s."), username);
if(!msg) { goto error; }
break;
case OTRL_CHAT_EVENT_FINISHED:
msg = g_strdup_printf (_("The private session was finished."));
if(!msg) { goto error; }
break;
default:
goto error;
}
err = chat_display_notification(info, msg);
if(err) { goto error_with_msg; }
g_free(msg);
return 0;
error_with_msg:
g_free(msg);
error:
return 1;
}
void chat_handle_event(const OtrlChatInfoPtr info, const OtrlChatEventPtr event)
{
OtrlChatEventType type;
type = otrl_chat_event_get_type(event);
switch(type) {
case OTRL_CHAT_EVENT_OFFER_RECEIVED:
case OTRL_CHAT_EVENT_STARTING:
case OTRL_CHAT_EVENT_STARTED:
case OTRL_CHAT_EVENT_UNVERIFIED_PARTICIPANT:
case OTRL_CHAT_EVENT_PLAINTEXT_RECEIVED:
case OTRL_CHAT_EVENT_PRIVATE_RECEIVED:
case OTRL_CHAT_EVENT_CONSENSUS_BROKEN:
case OTRL_CHAT_EVENT_FINISHED:
chat_handle_event_with_notifiaction(info, event);
break;
default:
return;
}
}
void chat_handle_event_cb(void *odata, const OtrlChatInfoPtr info, const OtrlChatEventPtr event)
{
chat_handle_event(info, event);
}
char **chat_get_participants(const OtrlChatInfoPtr info, unsigned int *size)
{
PurpleConversation *conv;
GList *userlist;
guint length;
unsigned int i;
char **usernames;
conv = chat_info_to_purple_conversation(info);
if(!conv) { goto error; }
userlist = purple_conv_chat_get_users(PURPLE_CONV_CHAT(conv));
if(!userlist) { goto error; }
length = g_list_length(userlist);
if(length == 0) { goto error; }
usernames = malloc(length * sizeof *usernames);
if(!usernames) { goto error; }
for(i=0; i<length; usernames[i++] = NULL);
for (i = 0; userlist != NULL; userlist = userlist->next, i++) {
PurpleConvChatBuddy *chatBuddy = userlist->data;
if(!chatBuddy) { goto error_with_usernames; }
char *participantName = chatBuddy->name;
if(!participantName) { goto error_with_usernames; }
usernames[i] = strdup(participantName);
if(!usernames[i]) { goto error_with_usernames; }
}
*size = length;
return usernames;
error_with_usernames:
purple_debug_info("otr", "MPOTR: chat_get_participants: error_with_usernames\n");
for(i=0; i<length; i++) {
free(usernames[i]);
free(usernames);
}
error:
purple_debug_info("otr", "MPOTR: chat_get_participants: error\n");
return NULL;
}
char **chat_get_participants_cb(void *opdata, const const OtrlChatInfoPtr info, unsigned int *size)
{
return chat_get_participants(info, size);
}
// TODO maybe this is of no use since its the same as otrg_plugin_chat_id_key_generate_new
// just check that WIN32 are added in the latter
void chat_privkey_create(const char *accountname, const char *protocol)
{
//OtrgDialogWaitHandle waithandle;
//#ifndef WIN32
// mode_t mask;
//#endif /* WIN32 */
// FILE *privf;
// gchar *privkeyfile = g_build_filename(purple_user_dir(), CHATPRIVKEYFNAME, NULL);
// if (!privkeyfile) {
// fprintf(stderr, _("Out of memory building filenames!\n"));
// return;
// }
//#ifndef WIN32
// mask = umask (0077);
//#endif /* WIN32 */
// privf = g_fopen(privkeyfile, "w+b");
//#ifndef WIN32
// umask (mask);
//#endif /* WIN32 */
// g_free(privkeyfile);
// if (!privf) {
// fprintf(stderr, _("Could not write private key file\n"));
// return;
// }
//waithandle = otrg_dialog_private_key_wait_start(accountname, protocol);
/* Generate the key */
//otrl_privkey_generate_FILEp(otrg_plugin_userstate, privf, accountname, protocol);
//otrl_chat_privkeydh_generate_FILEp(otrg_plugin_userstate, privf, accountname, protocol);
// otrl_chat_protocol_id_key_generate_new(otrg_plugin_userstate, &ui_ops, accountname, protocol);
// fclose(privf);
//otrg_ui_update_fingerprint();
/* Mark the dialog as done. */
//otrg_dialog_private_key_wait_done(waithandle);
otrg_plugin_chat_id_key_generate_new(accountname, protocol);
}
void chat_privkey_create_cb(void *opdata, const char *accountname, const char *protocol)
{
chat_privkey_create(accountname, protocol);
}
void chat_fingerprints_write()
{
gchar *chatfingerfile = g_build_filename(purple_user_dir(), CHATFINGERFNAME, NULL);
FILE *chatfingerf = g_fopen(chatfingerfile, "wb");
g_free(chatfingerfile);
if(chatfingerf) {
otrl_chat_protocol_fingerprints_write_file(otrg_plugin_userstate, chatfingerf);
fclose(chatfingerf);
} else {
purple_debug_info("otr", "MPOTR: otr_plugin_load: error reading trusted fingerprints file\n");
}
}
void chat_fingerprints_write_cb(void *opdata)
{
chat_fingerprints_write();
}
void chat_privkeys_write()
{
purple_debug_info("otr", "MPOTR: chat_privkeys_write: start\n");
gchar *chatprivkeyfile = g_build_filename(purple_user_dir(), CHATPRIVKEYFNAME, NULL);
FILE *chatprivkeyf = g_fopen(chatprivkeyfile, "wb");
g_free(chatprivkeyfile);
if(chatprivkeyf) {
otrl_chat_protocol_id_keys_write_file(otrg_plugin_userstate, chatprivkeyf);
fclose(chatprivkeyf);
} else {
purple_debug_info("otr", "MPOTR: otr_plugin_load: error reading trusted fingerprints file\n");
}
purple_debug_info("otr", "MPOTR: chat_privkeys_write: end\n");
}
void chat_privkeys_write_cb(void *opdata)
{
chat_privkeys_write();
}
void chat_info_refresh(const OtrlChatInfoPtr info)
{
PurpleConversation *conv;
OtrlChatPrivacyLevel privacy_level;
privacy_level = otrl_chat_info_get_privacy_level(info);
conv = chat_info_to_purple_conversation(info);
if(!conv) { goto error; }
otrg_dialog_chat_gui_refresh(conv, privacy_level);
error:
return;
}
void chat_info_refresh_cb(void *opdata, const OtrlChatInfoPtr info)
{
chat_info_refresh(info);
}
/* ******* */
/* Display a notification message for a particular accountname /
* protocol / username conversation. */
static void notify(void *opdata, OtrlNotifyLevel level,
const char *accountname, const char *protocol, const char *username,
const char *title, const char *primary, const char *secondary)
{
PurpleNotifyMsgType purplelevel = PURPLE_NOTIFY_MSG_ERROR;
switch (level) {
case OTRL_NOTIFY_ERROR:
purplelevel = PURPLE_NOTIFY_MSG_ERROR;
break;
case OTRL_NOTIFY_WARNING:
purplelevel = PURPLE_NOTIFY_MSG_WARNING;
break;
case OTRL_NOTIFY_INFO:
purplelevel = PURPLE_NOTIFY_MSG_INFO;
break;
}
otrg_dialog_notify_message(purplelevel, accountname, protocol,
username, title, primary, secondary);
}
/* Display an OTR control message for a particular accountname /
* protocol / username conversation. If force_create is non-zero and
* if the corresponding conversation window is not present, a new
* conversation window will be created and the message will be displayed
* there. If the message cannot be displayed, try notify() instead and
* return 1. Otherwise return 0 if message is successfully displayed. */
static int display_otr_message_or_notify(void *opdata, const char *accountname,
const char *protocol, const char *username, const char *msg,
int force_create, OtrlNotifyLevel level, const char *title,
const char *primary, const char *secondary)
{
if (otrg_dialog_display_otr_message(accountname, protocol,
username, msg, force_create)) {
notify(opdata, level, accountname, protocol, username, title, primary,
secondary);
return 1;
} else return 0;
}
static void log_message(void *opdata, const char *message)
{
purple_debug_info("otr", "%s", message);
}
static OtrlPolicy policy_cb(void *opdata, ConnContext *context)
{
PurpleAccount *account;
OtrlPolicy policy = OTRL_POLICY_DEFAULT;
OtrgUiPrefs prefs;
if (!context) return policy;
account = purple_accounts_find(context->accountname, context->protocol);
if (!account) return policy;
otrg_ui_get_prefs(&prefs, account, context->username);
return prefs.policy;
}
/* Generate a private key for the given accountname/protocol */
void otrg_plugin_create_privkey(const char *accountname,
const char *protocol)
{
//OtrgDialogWaitHandle waithandle;
#ifndef WIN32
mode_t mask;
#endif /* WIN32 */
FILE *privf;
gchar *privkeyfile = g_build_filename(purple_user_dir(),
PRIVKEYFNAME, NULL);
if (!privkeyfile) {
fprintf(stderr, _("Out of memory building filenames!\n"));
return;
}
#ifndef WIN32
mask = umask (0077);
#endif /* WIN32 */
privf = g_fopen(privkeyfile, "w+b");
#ifndef WIN32
umask (mask);
#endif /* WIN32 */
g_free(privkeyfile);
if (!privf) {
fprintf(stderr, _("Could not write private key file\n"));
return;
}
//waithandle = otrg_dialog_private_key_wait_start(accountname, protocol);
/* Generate the key */
otrl_privkey_generate_FILEp(otrg_plugin_userstate, privf,
accountname, protocol);
fclose(privf);
otrg_ui_update_fingerprint();
/* Mark the dialog as done. */
//otrg_dialog_private_key_wait_done(waithandle);
}
static void create_privkey_cb(void *opdata, const char *accountname,
const char *protocol)
{
otrg_plugin_create_privkey(accountname, protocol);
}
/* Generate a instance tag for the given accountname/protocol */
void otrg_plugin_create_instag(const char *accountname,
const char *protocol)
{
FILE *instagf;
gchar *instagfile = g_build_filename(purple_user_dir(), INSTAGFNAME, NULL);
if (!instagfile) {
fprintf(stderr, _("Out of memory building filenames!\n"));
return;
}
instagf = g_fopen(instagfile, "w+b");
g_free(instagfile);
if (!instagf) {
fprintf(stderr, _("Could not write private key file\n"));
return;
}
/* Generate the instag */
otrl_instag_generate_FILEp(otrg_plugin_userstate, instagf,
accountname, protocol);
fclose(instagf);
}
static void create_instag_cb(void *opdata, const char *accountname,
const char *protocol)
{
otrg_plugin_create_instag(accountname, protocol);
}
static int is_logged_in_cb(void *opdata, const char *accountname,
const char *protocol, const char *recipient)
{
PurpleAccount *account;
PurpleBuddy *buddy;
account = purple_accounts_find(accountname, protocol);
if (!account) return -1;
buddy = purple_find_buddy(account, recipient);
if (!buddy) return -1;
return (PURPLE_BUDDY_IS_ONLINE(buddy));
}
static void inject_message_cb(void *opdata, const char *accountname,
const char *protocol, const char *recipient, const char *message)
{
PurpleAccount *account = purple_accounts_find(accountname, protocol);
if (!account) {
PurplePlugin *p = purple_find_prpl(protocol);
char *msg = g_strdup_printf(_("Unknown account %s (%s)."),
accountname,
(p && p->info->name) ? p->info->name : _("Unknown"));
otrg_dialog_notify_error(accountname, protocol, recipient,
_("Unknown account"), msg, NULL);
g_free(msg);
return;
}
otrg_plugin_inject_message(account, recipient, message);
}
static void update_context_list_cb(void *opdata)
{
otrg_ui_update_keylist();
}
static void confirm_fingerprint_cb(void *opdata, OtrlUserState us,
const char *accountname, const char *protocol, const char *username,
unsigned char fingerprint[20])
{
otrg_dialog_unknown_fingerprint(us, accountname, protocol, username,
fingerprint);
}
static void write_fingerprints_cb(void *opdata)
{
otrg_plugin_write_fingerprints();
otrg_ui_update_keylist();
otrg_dialog_resensitize_all();
}
static void gone_secure_cb(void *opdata, ConnContext *context)
{
otrg_dialog_connected(context);
}
static void gone_insecure_cb(void *opdata, ConnContext *context)
{
otrg_dialog_disconnected(context);
}
static void still_secure_cb(void *opdata, ConnContext *context, int is_reply)
{
if (is_reply == 0) {
otrg_dialog_stillconnected(context);
}
}
static int max_message_size_cb(void *opdata, ConnContext *context)
{
void* lookup_result = g_hash_table_lookup(mms_table, context->protocol);
if (!lookup_result)
return 0;
else
return *((int*)lookup_result);
}
static const char* otr_error_message_cb(void *opdata, ConnContext *context,
OtrlErrorCode err_code)
{
char *err_msg = NULL;
switch (err_code)
{
case OTRL_ERRCODE_NONE :
break;
case OTRL_ERRCODE_ENCRYPTION_ERROR :
err_msg = g_strdup(_("Error occurred encrypting message."));
break;
case OTRL_ERRCODE_MSG_NOT_IN_PRIVATE :
if (context) {
err_msg = g_strdup_printf(_("You sent encrypted data to %s, who"
" wasn't expecting it."), context->accountname);
}
break;
case OTRL_ERRCODE_MSG_UNREADABLE :
err_msg =
g_strdup(_("You transmitted an unreadable encrypted message."));
break;
case OTRL_ERRCODE_MSG_MALFORMED :
err_msg = g_strdup(_("You transmitted a malformed data message."));
break;
}
return err_msg;
}
static void otr_error_message_free_cb(void *opdata, const char *err_msg)
{
if (err_msg) g_free((char*)err_msg);
}
static const char *resent_msg_prefix_cb(void *opdata, ConnContext *context)
{
return g_strdup(_("[resent]"));
}
static void resent_msg_prefix_free_cb(void *opdata, const char *prefix)
{
if (prefix) g_free((char*)prefix);
}
static void handle_smp_event_cb(void *opdata, OtrlSMPEvent smp_event,
ConnContext *context, unsigned short progress_percent,
char *question)
{
if (!context) return;
switch (smp_event)
{
case OTRL_SMPEVENT_NONE :
break;
case OTRL_SMPEVENT_ASK_FOR_SECRET :
otrg_dialog_socialist_millionaires(context);
break;
case OTRL_SMPEVENT_ASK_FOR_ANSWER :
otrg_dialog_socialist_millionaires_q(context, question);
break;
case OTRL_SMPEVENT_CHEATED :
otrg_plugin_abort_smp(context);
/* FALLTHROUGH */
case OTRL_SMPEVENT_IN_PROGRESS :
case OTRL_SMPEVENT_SUCCESS :
case OTRL_SMPEVENT_FAILURE :
case OTRL_SMPEVENT_ABORT :
otrg_dialog_update_smp(context,
smp_event, ((gdouble)progress_percent)/100.0);
break;
case OTRL_SMPEVENT_ERROR :
otrg_plugin_abort_smp(context);
break;
}
}
/* Treat this event like other incoming messages. This allows message
* notification events to get properly triggered. */
static void emit_msg_received(ConnContext *context, const char* message) {
PurpleConversation *conv = otrg_plugin_userinfo_to_conv(
context->accountname, context->protocol, context->username, 1);
PurpleMessageFlags flags = PURPLE_MESSAGE_RECV | PURPLE_MESSAGE_SYSTEM
| PURPLE_MESSAGE_NOTIFY;
PurpleAccount * account = purple_conversation_get_account(conv);
purple_signal_emit(purple_conversations_get_handle(), "received-im-msg",
account, context->username, message, conv, flags);
}
static void handle_msg_event_cb(void *opdata, OtrlMessageEvent msg_event,
ConnContext *context, const char* message, gcry_error_t err)
{
PurpleConversation *conv = NULL;
gchar *buf;
OtrlMessageEvent * last_msg_event;
if (!context) return;
conv = otrg_plugin_context_to_conv(context, 1);
last_msg_event = g_hash_table_lookup(conv->data, "otr-last_msg_event");
switch (msg_event)
{
case OTRL_MSGEVENT_NONE:
break;
case OTRL_MSGEVENT_ENCRYPTION_REQUIRED:
buf = g_strdup_printf(_("You attempted to send an "
"unencrypted message to %s"), context->username);
display_otr_message_or_notify(opdata, context->accountname,
context->protocol, context->username, _("Attempting to"
" start a private conversation..."), 1, OTRL_NOTIFY_WARNING,
_("OTR Policy Violation"), buf,
_("Unencrypted messages to this recipient are "
"not allowed. Attempting to start a private "
"conversation.\n\nYour message will be "
"retransmitted when the private conversation "
"starts."));
g_free(buf);
break;
case OTRL_MSGEVENT_ENCRYPTION_ERROR:
display_otr_message_or_notify(opdata, context->accountname,
context->protocol, context->username, _("An error occurred "
"when encrypting your message. The message was not sent."),
1, OTRL_NOTIFY_ERROR, _("Error encrypting message"),
_("An error occurred when encrypting your message"),
_("The message was not sent."));
break;
case OTRL_MSGEVENT_CONNECTION_ENDED:
buf = g_strdup_printf(_("%s has already closed his/her private "
"connection to you"), context->username);
display_otr_message_or_notify(opdata, context->accountname,
context->protocol, context->username, _("Your message "
"was not sent. Either end your private conversation, "
"or restart it."), 1, OTRL_NOTIFY_ERROR,
_("Private connection closed"), buf,
_("Your message was not sent. Either close your "
"private connection to him, or refresh it."));
g_free(buf);
break;
case OTRL_MSGEVENT_SETUP_ERROR:
if (!err) {
err = GPG_ERR_INV_VALUE;
}
switch(gcry_err_code(err)) {
case GPG_ERR_INV_VALUE:
buf = g_strdup(_("Error setting up private "
"conversation: Malformed message received"));
break;
default:
buf = g_strdup_printf(_("Error setting up private "
"conversation: %s"), gcry_strerror(err));
break;
}
display_otr_message_or_notify(opdata, context->accountname,
context->protocol, context->username, buf, 1,
OTRL_NOTIFY_ERROR, _("OTR Error"), buf, NULL);
g_free(buf);
break;
case OTRL_MSGEVENT_MSG_REFLECTED:
display_otr_message_or_notify(opdata,
context->accountname, context->protocol,
context->username,
_("We are receiving our own OTR messages. "
"You are either trying to talk to yourself, "
"or someone is reflecting your messages back "
"at you."), 1, OTRL_NOTIFY_ERROR,
_("OTR Error"), _("We are receiving our own OTR messages."),
_("You are either trying to talk to yourself, "
"or someone is reflecting your messages back "
"at you."));
break;
case OTRL_MSGEVENT_MSG_RESENT:
buf = g_strdup_printf(_("<b>The last message to %s was resent."
"</b>"), context->username);
display_otr_message_or_notify(opdata, context->accountname,
context->protocol, context->username, buf, 1,
OTRL_NOTIFY_INFO, _("Message resent"), buf, NULL);
g_free(buf);
break;
case OTRL_MSGEVENT_RCVDMSG_NOT_IN_PRIVATE:
buf = g_strdup_printf(_("<b>The encrypted message received from "
"%s is unreadable, as you are not currently communicating "
"privately.</b>"), context->username);
display_otr_message_or_notify(opdata, context->accountname,
context->protocol, context->username, buf, 1,
OTRL_NOTIFY_INFO, _("Unreadable message"), buf, NULL);
g_free(buf);
break;
case OTRL_MSGEVENT_RCVDMSG_UNREADABLE:
buf = g_strdup_printf(_("We received an unreadable "
"encrypted message from %s."), context->username);
display_otr_message_or_notify(opdata, context->accountname,
context->protocol, context->username, buf, 1,
OTRL_NOTIFY_ERROR, _("OTR Error"), buf, NULL);
g_free(buf);
break;
case OTRL_MSGEVENT_RCVDMSG_MALFORMED:
buf = g_strdup_printf(_("We received a malformed data "
"message from %s."), context->username);
display_otr_message_or_notify(opdata, context->accountname,
context->protocol, context->username, buf, 1,
OTRL_NOTIFY_ERROR, _("OTR Error"), buf, NULL);
g_free(buf);
break;
case OTRL_MSGEVENT_LOG_HEARTBEAT_RCVD:
buf = g_strdup_printf(_("Heartbeat received from %s.\n"),
context->username);
log_message(opdata, buf);
g_free(buf);
break;
case OTRL_MSGEVENT_LOG_HEARTBEAT_SENT:
buf = g_strdup_printf(_("Heartbeat sent to %s.\n"),
context->username);
log_message(opdata, buf);
g_free(buf);
break;
case OTRL_MSGEVENT_RCVDMSG_GENERAL_ERR:
display_otr_message_or_notify(opdata, context->accountname,
context->protocol, context->username, message, 1,
OTRL_NOTIFY_ERROR, _("OTR Error"), message, NULL);
break;
case OTRL_MSGEVENT_RCVDMSG_UNENCRYPTED:
buf = g_strdup_printf(_("<b>The following message received "
"from %s was <i>not</i> encrypted: [</b>%s<b>]</b>"),
context->username, message);
display_otr_message_or_notify(opdata, context->accountname,
context->protocol, context->username, buf, 1,
OTRL_NOTIFY_INFO, _("Received unencrypted message"),
buf, NULL);
emit_msg_received(context, buf);
g_free(buf);
break;
case OTRL_MSGEVENT_RCVDMSG_UNRECOGNIZED:
buf = g_strdup_printf(_("Unrecognized OTR message received "
"from %s.\n"), context->username);
log_message(opdata, buf);
g_free(buf);
break;
case OTRL_MSGEVENT_RCVDMSG_FOR_OTHER_INSTANCE:
if (*last_msg_event == msg_event) {
break;
}
buf = g_strdup_printf(_("%s has sent a message intended for a "
"different session. If you are logged in multiple times, "
"another session may have received the message."),
context->username);
display_otr_message_or_notify(opdata, context->accountname,
context->protocol, context->username, buf, 1,
OTRL_NOTIFY_INFO, _("Received message for a different "
"session"), buf, NULL);
g_free(buf);
break;
}
*last_msg_event = msg_event;
}
#ifdef DUMP_RECEIVED_SYMKEY
static void dump_data(const unsigned char *d, size_t l)
{
size_t i;
for (i=0;i<l;++i) printf("%02x", d[i]);
}
static void received_symkey_cb(void *opdata, ConnContext *context,
unsigned int use, const unsigned char *usedata,
size_t usedatalen, const unsigned char *symkey)
{
printf("Received symkey use: %08x\nKey: ", use);
dump_data(symkey, OTRL_EXTRAKEY_BYTES);
printf("\nUsedata: ");
dump_data(usedata, usedatalen);
printf("\n\n");
}
#endif
static guint otrg_plugin_timerid = 0;