6 files changed, 82 insertions, 0 deletions
diff --git a/meson.build b/meson.build
index 7f86f002..887397c2 100644
--- a/meson.build
+++ b/meson.build
@@ -17,7 +17,12 @@ dep_icu_uc = dependency('icu-uc')
 dep_libadwaita = dependency('libadwaita-1')
 dep_libcanberra = dependency('libcanberra')
 dep_libgcrypt = dependency('libgcrypt')
+dep_libqrencode = dependency('libqrencode')
 dep_libsrtp2 = dependency('libsrtp2')
+# libsignal-protocol-c has a history of breaking compatibility on the patch level
+# we'll have to check compatibility for every new release
+# distro maintainers may update this dependency after compatibility tests
+dep_libsignal_protocol_c = dependency('libsignal-protocol-c', version: ['>=2.3.2', '<2.3.4'])
 dep_libsoup = dependency('libsoup-3.0')
 dep_nice = dependency('nice', version: '>=0.1.15')
 dep_m = meson.get_compiler('c').find_library('m', required: false)
diff --git a/plugins/meson.build b/plugins/meson.build
index 9a995f87..cf47aea8 100644
--- a/plugins/meson.build
+++ b/plugins/meson.build
@@ -1,4 +1,5 @@
 subdir('http-files')
 subdir('ice')
 subdir('notification-sound')
+subdir('omemo')
 subdir('openpgp')
diff --git a/plugins/omemo/data/gresource.xml b/plugins/omemo/data/gresource.xml
new file mode 100644
index 00000000..616dcdc1
--- /dev/null
+++ b/plugins/omemo/data/gresource.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+  <gresource prefix="/im/dino/Dino/omemo">
+    <file>contact_details_dialog.ui</file>
+    <file>manage_key_dialog.ui</file>
+  </gresource>
+</gresources>
diff --git a/plugins/omemo/meson.build b/plugins/omemo/meson.build
new file mode 100644
index 00000000..57eec2ce
--- /dev/null
+++ b/plugins/omemo/meson.build
@@ -0,0 +1,68 @@
+subdir('po')
+dependencies = [
+    dep_crypto_vala,
+    dep_dino,
+    dep_gee,
+    dep_glib,
+    dep_gmodule,
+    dep_gtk4,
+    dep_libgcrypt,
+    dep_libqrencode,
+    dep_libsignal_protocol_c,
+    dep_qlite,
+    dep_xmpp_vala,
+]
+sources = files(
+    'src/dtls_srtp_verification_draft.vala',
+    'src/file_transfer/file_decryptor.vala',
+    'src/file_transfer/file_encryptor.vala',
+    'src/jingle/jet_omemo.vala',
+    'src/jingle/jingle_helper.vala',
+    'src/logic/database.vala',
+    'src/logic/decrypt.vala',
+    'src/logic/encrypt.vala',
+    'src/logic/manager.vala',
+    'src/logic/pre_key_store.vala',
+    'src/logic/session_store.vala',
+    'src/logic/signed_pre_key_store.vala',
+    'src/logic/trust_manager.vala',
+    'src/plugin.vala',
+    'src/protocol/bundle.vala',
+    'src/protocol/message_flag.vala',
+    'src/protocol/stream_module.vala',
+    'src/register_plugin.vala',
+    'src/signal/context.vala',
+    'src/signal/signal_helper.c',
+    'src/signal/simple_iks.vala',
+    'src/signal/simple_pks.vala',
+    'src/signal/simple_spks.vala',
+    'src/signal/simple_ss.vala',
+    'src/signal/store.vala',
+    'src/signal/util.vala',
+    'src/trust_level.vala',
+    'src/ui/account_settings_entry.vala',
+    'src/ui/bad_messages_populator.vala',
+    'src/ui/call_encryption_entry.vala',
+    'src/ui/contact_details_dialog.vala',
+    'src/ui/contact_details_provider.vala',
+    'src/ui/device_notification_populator.vala',
+    'src/ui/encryption_list_entry.vala',
+    'src/ui/manage_key_dialog.vala',
+    'src/ui/own_notifications.vala',
+    'src/ui/util.vala',
+)
+sources += gnome.compile_resources(
+    'resources',
+    'data/gresource.xml',
+    source_dir: 'data',
+)
+c_args = [
+    '-DG_LOG_DOMAIN="OMEMO"',
+    '-DGETTEXT_PACKAGE="dino-omemo"',
+    '-DLOCALE_INSTALL_DIR="@0@"'.format(get_option('prefix') / get_option('localedir')),
+]
+vala_args = [
+    '--vapidir', meson.current_source_dir() / 'vapi',
+]
+lib_omemo = shared_library('omemo', sources, name_prefix: '', c_args: c_args, vala_args: vala_args, include_directories: include_directories('src'), dependencies: dependencies, install: true, install_dir: get_option('libdir') / 'dino/plugins')
+dep_omemo = declare_dependency(link_with: lib_omemo, include_directories: include_directories('.'))
diff --git a/plugins/omemo/po/meson.build b/plugins/omemo/po/meson.build
new file mode 100644
index 00000000..fa22f211
--- /dev/null
+++ b/plugins/omemo/po/meson.build
@@ -0,0 +1 @@
+i18n.gettext('dino-omemo')
diff --git a/plugins/omemo/vapi/libgcrypt.vapi b/plugins/omemo/vapi/libgcrypt.vapi
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/plugins/omemo/vapi/libgcrypt.vapi