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using Dino.Entities;
using Gtk;
using Pango;
public class Dino.Ui.CallEncryptionButtonController : Object {
private bool has_been_set = false;
public bool controls_active { get; set; default=false; }
public MenuButton button;
public CallEncryptionButtonController(MenuButton button) {
this.button = button;
button.opacity = 0;
// button.set_popover(popover);
button.notify["controls-active"].connect(update_opacity);
}
public void set_icon(bool encrypted, string? icon_name) {
if (encrypted) {
button.icon_name = icon_name ?? "changes-prevent-symbolic";
button.remove_css_class("unencrypted");
} else {
button.icon_name = icon_name ?? "changes-allow-symbolic";
button.add_css_class("unencrypted");
}
has_been_set = true;
update_opacity();
}
private static bool bytes_equal(uint8[] a1, uint8[] a2) {
return a1.length == a2.length && Memory.cmp(a1, a2, a1.length) == 0;
}
private static bool encryption_equals(Xmpp.Xep.Jingle.ContentEncryption? audio_encryption, Xmpp.Xep.Jingle.ContentEncryption? video_encryption) {
if (audio_encryption == null && video_encryption == null) return true;
if (audio_encryption == null || video_encryption == null) return false;
if (audio_encryption.encryption_ns != video_encryption.encryption_ns) return false;
if (audio_encryption.encryption_name != video_encryption.encryption_name) return false;
if (!bytes_equal(audio_encryption.our_key,video_encryption.our_key)) return false;
if (!bytes_equal(audio_encryption.peer_key,video_encryption.peer_key)) return false;
return true;
}
public void set_info(string? title, bool show_keys, bool has_audio, Xmpp.Xep.Jingle.ContentEncryption? audio_encryption, bool has_video, Xmpp.Xep.Jingle.ContentEncryption? video_encryption) {
Popover popover = new Popover();
button.set_popover(popover);
Xmpp.Xep.Jingle.ContentEncryption? single_encryption = null;
if (!has_audio || !has_video || encryption_equals(audio_encryption, video_encryption)) {
single_encryption = audio_encryption ?? video_encryption;
if (single_encryption == null) {
popover.set_child(new Label("This call is unencrypted.") );
return;
}
}
if (title != null && !show_keys) {
popover.set_child(new Label(title) { use_markup=true } );
return;
}
Box box = new Box(Orientation.VERTICAL, 10);
if (single_encryption != null) {
box.append(new Label("<b>%s</b>".printf(title ?? "This call is end-to-end encrypted.")) { use_markup=true, xalign=0 });
box.append(create_media_encryption_grid(single_encryption));
} else {
box.append(new Label("<b>%s</b>".printf(title ?? "This call is partially end-to-end encrypted.")) { use_markup=true, xalign=0 });
if (has_audio) {
box.append(new Label("<b>Audio</b>") { use_markup=true, xalign=0 });
box.append(create_media_encryption_grid(audio_encryption));
}
if (has_video) {
box.append(new Label("<b>Video</b>") { use_markup=true, xalign=0 });
box.append(create_media_encryption_grid(video_encryption));
}
}
popover.set_child(box);
}
public void update_opacity() {
button.opacity = controls_active && has_been_set ? 1 : 0;
}
private Widget create_media_encryption_grid(Xmpp.Xep.Jingle.ContentEncryption? encryption) {
if (encryption == null) {
return new Label("This content is unencrypted.") { xalign=0 };
}
Grid ret = new Grid() { row_spacing=3, column_spacing=5 };
if (encryption.peer_key.length > 0) {
ret.attach(new Label("Peer call key") { xalign=0 }, 1, 2, 1, 1);
ret.attach(new Label("<span font_family='monospace'>" + format_fingerprint(encryption.peer_key) + "</span>") { use_markup=true, max_width_chars=25, ellipsize=EllipsizeMode.MIDDLE, xalign=0, hexpand=true }, 2, 2, 1, 1);
}
if (encryption.our_key.length > 0) {
ret.attach(new Label("Your call key") { xalign=0 }, 1, 3, 1, 1);
ret.attach(new Label("<span font_family='monospace'>" + format_fingerprint(encryption.our_key) + "</span>") { use_markup=true, max_width_chars=25, ellipsize=EllipsizeMode.MIDDLE, xalign=0, hexpand=true }, 2, 3, 1, 1);
}
return ret;
}
private string format_fingerprint(uint8[] fingerprint) {
var sb = new StringBuilder();
for (int i = 0; i < fingerprint.length; i++) {
sb.append("%02x".printf(fingerprint[i]));
if (i < fingerprint.length - 1) {
sb.append(":");
}
}
return sb.str;
}
}
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