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-rw-r--r--.gitignore2
-rw-r--r--Makefile.am3
-rw-r--r--configure.ac18
-rw-r--r--src/command/command.c20
-rw-r--r--src/otr.c260
-rw-r--r--src/otr.h33
-rw-r--r--src/profanity.c8
7 files changed, 340 insertions, 4 deletions
diff --git a/.gitignore b/.gitignore
index 6c29afec..3748015d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,3 +30,5 @@ core
 bugs/
 TODO
 plugins/
+*_key.txt
+*_fingerprints.txt
diff --git a/Makefile.am b/Makefile.am
index 45d8a9c0..fae529e9 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -23,7 +23,8 @@ profanity_SOURCES = \
 	src/tools/tinyurl.c src/tools/tinyurl.h \
 	src/config/accounts.c src/config/accounts.h \
 	src/config/preferences.c src/config/preferences.h \
-	src/config/theme.c src/config/theme.h
+	src/config/theme.c src/config/theme.h \
+	src/otr.c src/otr.h
 
 TESTS = tests/testsuite
 check_PROGRAMS = tests/testsuite
diff --git a/configure.ac b/configure.ac
index a30c96d8..a147ae44 100644
--- a/configure.ac
+++ b/configure.ac
@@ -26,6 +26,8 @@ AC_ARG_WITH([libxml2],
     [AS_HELP_STRING([--with-libxml2], [link with libxml2 instead of expat])])
 AC_ARG_WITH([xscreensaver],
     [AS_HELP_STRING([--with-xscreensaver], [use libXScrnSaver to determine indle time])])
+AC_ARG_WITH([otr],
+    [AS_HELP_STRING([--with-libotr], [enable otr entryption using libtr library])])
 
 # Checks for libraries.
 if test "x$with_libxml2" = xyes; then
@@ -54,7 +56,14 @@ elif test "x$with_xscreensaver" = x; then
         [AC_MSG_NOTICE([libXss not found, falling back to profanity auto-away])])
     AC_CHECK_LIB([X11], [main], [], 
         [AC_MSG_NOTICE([libX11 not found, falling back to profanity auto-away])])
+fi
 
+if test "x$with_otr" = xyes; then
+    AC_CHECK_LIB([otr], [main], [],
+        [AC_MSG_ERROR([libotr is required for otr encryption support])])
+elif test "x$enable_otr" = x; then
+    AC_CHECK_LIB([otr], [main], [],
+        [AC_MSG_NOTICE([libotr not found, otr entryption support no enabled])])
 fi
 
 AC_CHECK_LIB([resolv], [main], [],
@@ -87,14 +96,19 @@ if test "x$enable_notifications" != xno; then
         [AC_MSG_NOTICE([libnotify module not found])])
 fi
 
+if test "x$with_otr" != xno; then
+    PKG_CHECK_MODULES([OTR], [libotr], [],
+        [AC_MSG_NOTICE([libotr module not found])])
+fi
+
 # Default parameters
 AM_CFLAGS="-Wall"
 if test "x$PACKAGE_STATUS" = xdevelopment; then
     AM_CFLAGS="$AM_CFLAGS -Wunused -Werror"
 fi
-LIBS="$LIBS $DEPS_LIBS $NOTIFY_LIBS"
+LIBS="$LIBS $DEPS_LIBS $NOTIFY_LIBS $OTR_LIBS"
 
-AM_CPPFLAGS="$DEPS_CFLAGS $NOTIFY_CFLAGS"
+AM_CPPFLAGS="$DEPS_CFLAGS $NOTIFY_CFLAGS $OTR_CLAGS"
 
 AC_SUBST(AM_CFLAGS)
 AC_SUBST(AM_CPPFLAGS)
diff --git a/src/command/command.c b/src/command/command.c
index ef00fae8..586cdb52 100644
--- a/src/command/command.c
+++ b/src/command/command.c
@@ -38,6 +38,7 @@
 #include "jid.h"
 #include "log.h"
 #include "muc.h"
+#include "otr.h"
 #include "profanity.h"
 #include "tools/autocomplete.h"
 #include "tools/parser.h"
@@ -1159,7 +1160,13 @@ cmd_execute_default(const char * const inp)
             if (status != JABBER_CONNECTED) {
                 ui_current_print_line("You are not currently connected.");
             } else {
+#ifdef HAVE_LIBOTR
+                char *encrypted = otr_encrypt_message(recipient, inp);
+                message_send(encrypted, recipient);
+                otr_free_message(encrypted);
+#else
                 message_send(inp, recipient);
+#endif
 
                 if (prefs_get_boolean(PREF_CHLOG)) {
                     const char *jid = jabber_get_fulljid();
@@ -2194,7 +2201,14 @@ _cmd_msg(gchar **args, struct cmd_help_t help)
             usr_jid = usr;
         }
         if (msg != NULL) {
+#ifdef HAVE_LIBOTR
+            cons_debug("HAVE_LIBOTR, user_jid: %sm msg: %s", usr_jid, msg);
+            char *encrypted = otr_encrypt_message(usr_jid, msg);
+            message_send(encrypted, usr_jid);
+            otr_free_message(encrypted);
+#else
             message_send(msg, usr_jid);
+#endif
             ui_outgoing_msg("me", usr_jid, msg);
 
             if (((win_type == WIN_CHAT) || (win_type == WIN_CONSOLE)) && prefs_get_boolean(PREF_CHLOG)) {
@@ -2981,7 +2995,13 @@ _cmd_tiny(gchar **args, struct cmd_help_t help)
         if (tiny != NULL) {
             if (win_type == WIN_CHAT) {
                 char *recipient = ui_current_recipient();
+#ifdef HAVE_LIBOTR
+                char *encrypted = otr_encrypt_message(recipient, tiny);
+                message_send(encrypted, recipient);
+                otr_free_message(encrypted);
+#else
                 message_send(tiny, recipient);
+#endif
 
                 if (prefs_get_boolean(PREF_CHLOG)) {
                     const char *jid = jabber_get_fulljid();
diff --git a/src/otr.c b/src/otr.c
new file mode 100644
index 00000000..e468bdea
--- /dev/null
+++ b/src/otr.c
@@ -0,0 +1,260 @@
+/*
+ * otr.c
+ *
+ * Copyright (C) 2012, 2013 James Booth <boothj5@gmail.com>
+ *
+ * This file is part of Profanity.
+ *
+ * Profanity is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Profanity 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 Profanity.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <libotr/proto.h>
+#include <libotr/privkey.h>
+#include <libotr/message.h>
+#include <glib.h>
+
+#include "otr.h"
+#include "ui/ui.h"
+
+static OtrlUserState user_state;
+static OtrlMessageAppOps ops;
+static char *jid;
+
+// ops callbacks
+static OtrlPolicy
+cb_policy(void *opdata, ConnContext *context)
+{
+    cons_debug("cb_policy");
+    return OTRL_POLICY_DEFAULT ^ OTRL_POLICY_ALLOW_V1;
+}
+
+static void
+cb_create_privkey(void *opdata, const char *accountname,
+    const char *protocol)
+{
+    cons_debug("cb_create_privkey()");
+}
+
+static int
+cb_is_logged_in(void *opdata, const char *accountname,
+    const char *protocol, const char *recipient)
+{
+    cons_debug("cb_is_logged_in: account: %s, protocol: %s, recipient: %s",
+        accountname, protocol, recipient);
+    return -1;
+}
+
+static void
+cb_inject_message(void *opdata, const char *accountname,
+    const char *protocol, const char *recipient, const char *message)
+{
+    cons_debug("cb_inject_message: account: %s, protocol, %s, recipient: %s, message: %s",
+        accountname, protocol, recipient, message);
+}
+
+static void
+cb_notify(void *opdata, OtrlNotifyLevel level,
+    const char *accountname, const char *protocol, const char *username,
+    const char *title, const char *primary, const char *secondary)
+{
+    cons_debug("cb_notify");
+}
+
+static int
+cb_display_otr_message(void *opdata, const char *accountname,
+    const char *protocol, const char *username, const char *msg)
+{
+    cons_debug("cb_display_otr_message: account: %s, protocol: %s, user: %s, msg: %s",
+        accountname, protocol, username, msg);
+    return 0;
+}
+
+static const char *
+cb_protocol_name(void *opdata, const char *protocol)
+{
+    cons_debug("cb_protocol_name: %s", protocol);
+    return protocol;
+}
+
+static void
+cb_new_fingerprint(void *opdata, OtrlUserState us, const char *accountname,
+    const char *protocol, const char *username, unsigned char fingerprint[20])
+{
+    cons_debug("cb_new_fingerprint: account: %s, protocol: %s, username: %s",
+        accountname, protocol, username);
+}
+
+static void
+cb_protocol_name_free(void *opdata, const char *protocol_name)
+{
+    cons_debug("cb_protocol_name_free: %s", protocol_name);
+}
+
+static void
+cb_update_context_list(void *opdata)
+{
+    cons_debug("cb_update_context_list");
+}
+
+static void
+cb_write_fingerprints(void *opdata)
+{
+    cons_debug("cb_write_fingerprints");
+}
+
+static void
+cb_gone_secure(void *opdata, ConnContext *context)
+{
+    cons_debug("cb_gone_secure");
+}
+
+static void
+cb_gone_insecure(void *opdata, ConnContext *context)
+{
+    cons_debug("cb_gone_insecure");
+}
+
+static void
+cb_still_secure(void *opdata, ConnContext *context, int is_reply)
+{
+    cons_debug("cb_still_secure: is_reply = %d", is_reply);
+}
+
+static void
+cb_log_message(void *opdata, const char *message)
+{
+    cons_debug("cb_log_message: %s", message);
+}
+
+void
+otr_init(void)
+{
+    cons_debug("otr_init()");
+    OTRL_INIT;
+
+    ops.policy = cb_policy;
+    ops.create_privkey = cb_create_privkey;
+    ops.is_logged_in = cb_is_logged_in;
+    ops.inject_message = cb_inject_message;
+    ops.notify = cb_notify;
+    ops.display_otr_message = cb_display_otr_message;
+    ops.update_context_list = cb_update_context_list;
+    ops.protocol_name = cb_protocol_name;
+    ops.protocol_name_free = cb_protocol_name_free;
+    ops.new_fingerprint = cb_new_fingerprint;
+    ops.write_fingerprints = cb_write_fingerprints;
+    ops.gone_secure = cb_gone_secure;
+    ops.gone_insecure = cb_gone_insecure;
+    ops.still_secure = cb_still_secure;
+    ops.log_message = cb_log_message;
+}
+
+void
+otr_account_load(ProfAccount *account)
+{
+    cons_debug("otr_account_load()");
+
+    jid = strdup(account->jid);
+
+    GString *key_filename = g_string_new("./");
+    g_string_append(key_filename, account->jid);
+    g_string_append(key_filename, "_key.txt");
+
+    GString *fp_filename = g_string_new("./");
+    g_string_append(fp_filename, account->jid);
+    g_string_append(fp_filename, "_fingerprints.txt");
+
+    user_state = otrl_userstate_create();
+
+    gcry_error_t err = 0;
+
+    if (!g_file_test(key_filename->str, G_FILE_TEST_IS_REGULAR)) {
+        cons_debug("Private key not found, generating one");
+        err = otrl_privkey_generate(user_state, key_filename->str, account->jid, "xmpp");
+        if (!err == GPG_ERR_NO_ERROR) {
+            cons_debug("Failed to generate private key");
+            g_string_free(key_filename, TRUE);
+            return;
+        }
+        cons_debug("Generated private key");
+    }
+
+    if (!g_file_test(fp_filename->str, G_FILE_TEST_IS_REGULAR)) {
+        cons_debug("Fingerprints not found, creating file");
+        err = otrl_privkey_write_fingerprints(user_state, fp_filename->str);
+        if (!err == GPG_ERR_NO_ERROR) {
+            cons_debug("Failed to create fingerprints file");
+            g_string_free(key_filename, TRUE);
+            return;
+        }
+        cons_debug("Created fingerprints file");
+    }
+
+    cons_debug("Loading private key");
+    err = otrl_privkey_read(user_state, key_filename->str);
+    if (!err == GPG_ERR_NO_ERROR) {
+        cons_debug("Failed to load private key");
+        g_string_free(key_filename, TRUE);
+        return;
+    }
+    cons_debug("Loaded private key");
+
+    cons_debug("Loading fingerprints");
+    err = otrl_privkey_read_fingerprints(user_state, fp_filename->str, NULL, NULL);
+    if (!err == GPG_ERR_NO_ERROR) {
+        cons_debug("Failed to load fingerprints");
+        g_string_free(fp_filename, TRUE);
+        return;
+    }
+    cons_debug("Loaded fingerprints");
+
+    g_string_free(key_filename, TRUE);
+    g_string_free(fp_filename, TRUE);
+    return;
+}
+
+char *
+otr_encrypt_message(const char * const to, const char * const message)
+{
+    cons_debug("otr_encrypt_message, account: %s, protocol: xmpp, recipient: %s", jid, to);
+    gcry_error_t err;
+    char *newmessage = NULL;
+
+    err = otrl_message_sending(
+        user_state,
+        &ops,
+        NULL,
+        jid,
+        "xmpp",
+        to,
+        message,
+        0,
+        &newmessage,
+        NULL,
+        &ops);
+    if (!err == GPG_ERR_NO_ERROR) {
+        cons_debug("Error encrypting, result: %s", newmessage);
+        return NULL;
+    } else {
+        cons_debug("Encrypted, result: %s", newmessage);
+        return newmessage;
+    }
+}
+
+void
+otr_free_message(char *message)
+{
+    otrl_message_free(message);
+}
diff --git a/src/otr.h b/src/otr.h
new file mode 100644
index 00000000..42005382
--- /dev/null
+++ b/src/otr.h
@@ -0,0 +1,33 @@
+/*
+ * otr.h
+ *
+ * Copyright (C) 2012, 2013 James Booth <boothj5@gmail.com>
+ *
+ * This file is part of Profanity.
+ *
+ * Profanity is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Profanity 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 Profanity.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef OTR_H
+#define OTR_H
+
+#include "config/accounts.h"
+
+void otr_init(void);
+void otr_account_load(ProfAccount *account);
+char * otr_encrypt_message(const char * const to, const char * const message);
+void otr_free_message(char *message);
+
+#endif
diff --git a/src/profanity.c b/src/profanity.c
index 4e9e887c..4ac3ca98 100644
--- a/src/profanity.c
+++ b/src/profanity.c
@@ -19,7 +19,6 @@
  * along with Profanity.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-
 #include "config.h"
 
 #include <locale.h>
@@ -40,6 +39,7 @@
 #include "contact.h"
 #include "log.h"
 #include "muc.h"
+#include "otr.h"
 #include "resource.h"
 #include "ui/notifier.h"
 #include "ui/ui.h"
@@ -249,6 +249,9 @@ void
 prof_handle_login_account_success(char *account_name)
 {
     ProfAccount *account = accounts_get_account(account_name);
+#ifdef HAVE_LIBOTR
+    otr_account_load(account);
+#endif
     resource_presence_t resource_presence = accounts_get_login_presence(account->name);
     contact_presence_t contact_presence = contact_presence_from_resource_presence(resource_presence);
     cons_show_login_success(account);
@@ -632,6 +635,9 @@ _init(const int disable_tls, char *log_level)
     log_info("Initialising contact list");
     roster_init();
     muc_init();
+#ifdef HAVE_LIBOTR
+    otr_init();
+#endif
     atexit(_shutdown);
 }