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Reject hook names that are not alphanumeric _ or - or start with -

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Fixes #2414
This commit is contained in:
Maxime Coste 2018-09-22 22:11:21 +10:00
parent 9db9fe612d
commit 9c1c763a37
1 changed files with 5 additions and 0 deletions
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5
src/commands.cc
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@ -866,6 +866,11 @@ const CommandDesc add_hook_cmd = {
Regex regex{parser[2], RegexCompileFlags::Optimize};
const String& command = parser[3];
auto group = parser.get_switch("group").value_or(StringView{});
if (any_of(group, [](char c) { return not is_word(c, { '-' }); }) or
(not group.empty() and not is_word(group[0])))
throw runtime_error{format("invalid group name '{}'", group)};
const auto flags = (parser.get_switch("always") ? HookFlags::Always : HookFlags::None) |
(parser.get_switch("once") ? HookFlags::Once : HookFlags::None);
get_scope(parser[0], context).hooks().add_hook(parser[1], group.str(), flags,