96 lines
3.4 KiB
Dart
96 lines
3.4 KiB
Dart
/// Core OAuth scopes Frosty requests on a normal Twitch login.
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///
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/// Matches the pre-moderator-tools set so existing tokens remain valid without
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/// a re-consent nag for non-moderators.
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const twitchUserScopes = <String>[
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'chat:read',
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'chat:edit',
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'user:read:follows',
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'user:read:blocked_users',
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'user:manage:blocked_users',
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'user:manage:chat_color',
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'user:read:emotes',
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];
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/// Moderator-only scopes requested via an explicit opt-in upgrade.
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const twitchModeratorScopes = <String>[
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'user:read:moderated_channels',
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'moderator:manage:chat_messages',
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'moderator:manage:banned_users',
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];
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/// Core + moderator scopes for an opted-in moderator session.
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const twitchAllUserScopes = <String>[
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...twitchUserScopes,
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...twitchModeratorScopes,
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];
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/// Space-separated scope string for Twitch's authorize URL (core only).
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String get twitchUserScopeQuery => twitchUserScopes.join(' ');
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/// Space-separated scope string for Twitch's authorize URL (core + mod).
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String get twitchAllUserScopeQuery => twitchAllUserScopes.join(' ');
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/// Human-readable labels for Frosty-requested scopes.
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const twitchScopeLabels = <String, String>{
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'chat:read': 'Read chat messages',
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'chat:edit': 'Send chat messages',
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'user:read:follows': 'View followed channels',
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'user:read:blocked_users': 'View blocked users',
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'user:manage:blocked_users': 'Block and unblock users',
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'user:manage:chat_color': 'Change chat name color',
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'user:read:emotes': 'View emotes you can use',
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'user:read:moderated_channels': 'View channels you moderate',
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'moderator:manage:chat_messages': 'Delete chat messages as a moderator',
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'moderator:manage:banned_users': 'Timeout and ban users as a moderator',
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};
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/// Whether [granted] includes every moderator scope Frosty needs.
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bool hasModeratorScopes(Iterable<String> granted) =>
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missingTwitchScopes(
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granted: granted,
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required: twitchModeratorScopes,
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).isEmpty;
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/// Scopes in [required] that are not present in [granted].
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List<String> missingTwitchScopes({
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required Iterable<String> granted,
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Iterable<String> required = twitchUserScopes,
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}) {
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final grantedSet = granted.toSet();
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return required.where((scope) => !grantedSet.contains(scope)).toList();
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}
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String _scopeBullets(Iterable<String> scopes) => scopes
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.map((scope) => '• ${twitchScopeLabels[scope] ?? scope}')
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.join('\n');
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/// Dialog body for a Twitch Helix/OAuth 401 on a core (non-mod) request.
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///
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/// Missing-permissions copy only lists **core** scopes. A token that already
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/// has core scopes is treated as expired/invalid rather than "missing mod
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/// permissions" so non-mods are never nagged about moderator consent.
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String unauthorizedDialogMessage({
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required bool isLoggedIn,
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required Iterable<String> grantedScopes,
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}) {
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if (!isLoggedIn) {
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return 'Your session has expired. Please log in again to continue.';
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}
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final missing = missingTwitchScopes(granted: grantedScopes);
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if (missing.isEmpty) {
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return 'Your session has expired. Please log in again to continue.';
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}
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return 'Frosty needs additional Twitch permissions:\n\n'
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'${_scopeBullets(missing)}\n\n'
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'Log in again to grant them.';
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}
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/// Copy for the explicit moderator-tools opt-in dialog.
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String enableModeratorToolsDialogMessage() {
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return 'Enable moderator tools to manage chat in channels you moderate:\n\n'
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'${_scopeBullets(twitchModeratorScopes)}\n\n'
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'You will be asked to authorize these permissions with Twitch.';
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}
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