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Parse only supported schemes as URIs #24814

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Merged
merged 6 commits into from
Sep 18, 2023
Merged

Parse only supported schemes as URIs #24814

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66751ef
add regex
Sep 14, 2023
25926af
add unit test
Sep 14, 2023
2a18f76
add visual test
Sep 14, 2023
9b8fdcb
somehow accidentally removed backslashes
Sep 14, 2023
a2df123
Add failing test case for fake (but still incorrectly allowed) protocol
bdach Sep 18, 2023
d3cc6db
Fix link protocol allowlist allowing too much
bdach Sep 18, 2023
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22 changes: 20 additions & 2 deletions osu.Game.Tests/Chat/MessageFormatterTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -32,8 +32,26 @@ public void TestUnsupportedProtocolLink()
Message result = MessageFormatter.FormatMessage(new Message { Content = "This is a gopher://really-old-protocol we don't support." });

Assert.AreEqual(result.Content, result.DisplayContent);
Assert.AreEqual(1, result.Links.Count);
Assert.AreEqual("gopher://really-old-protocol", result.Links[0].Url);
Assert.AreEqual(0, result.Links.Count);
}

[Test]
public void TestFakeProtocolLink()
{
Message result = MessageFormatter.FormatMessage(new Message { Content = "This is a osunotarealprotocol://completely-made-up-protocol we don't support." });

Assert.AreEqual(result.Content, result.DisplayContent);
Assert.AreEqual(0, result.Links.Count);
}

[Test]
public void TestSupportedProtocolLinkParsing()
{
Message result = MessageFormatter.FormatMessage(new Message { Content = "forgotspacehttps://dev.ppy.sh joinmyosump://12345 jointheosu://chan/#english" });

Assert.AreEqual("https://dev.ppy.sh", result.Links[0].Url);
Assert.AreEqual("osump://12345", result.Links[1].Url);
Assert.AreEqual("osu://chan/#english", result.Links[2].Url);
}

[Test]
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5 changes: 5 additions & 0 deletions osu.Game.Tests/Visual/Online/TestSceneChatLink.cs
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Expand Up @@ -64,6 +64,9 @@ public void TestLinksGeneral()
addMessageWithChecks("test!");
addMessageWithChecks("dev.ppy.sh!");
addMessageWithChecks("https://dev.ppy.sh!", 1, expectedActions: LinkAction.External);
addMessageWithChecks("http://dev.ppy.sh!", 1, expectedActions: LinkAction.External);
addMessageWithChecks("forgothttps://dev.ppy.sh!", 1, expectedActions: LinkAction.External);
addMessageWithChecks("forgothttp://dev.ppy.sh!", 1, expectedActions: LinkAction.External);
addMessageWithChecks("00:12:345 (1,2) - Test?", 1, expectedActions: LinkAction.OpenEditorTimestamp);
addMessageWithChecks("Wiki link for tasty [[Performance Points]]", 1, expectedActions: LinkAction.OpenWiki);
addMessageWithChecks("(osu forums)[https://dev.ppy.sh/forum] (old link format)", 1, expectedActions: LinkAction.External);
Expand All @@ -84,9 +87,11 @@ public void TestLinksGeneral()
addMessageWithChecks("feels important", 0, true, true);
addMessageWithChecks("likes to post this [https://dev.ppy.sh/home link].", 1, true, true, expectedActions: LinkAction.External);
addMessageWithChecks("Join my multiplayer game osump://12346.", 1, expectedActions: LinkAction.JoinMultiplayerMatch);
addMessageWithChecks("Join my multiplayer gameosump://12346.", 1, expectedActions: LinkAction.JoinMultiplayerMatch);
addMessageWithChecks("Join my [multiplayer game](osump://12346).", 1, expectedActions: LinkAction.JoinMultiplayerMatch);
addMessageWithChecks($"Join my [#english]({OsuGameBase.OSU_PROTOCOL}chan/#english).", 1, expectedActions: LinkAction.OpenChannel);
addMessageWithChecks($"Join my {OsuGameBase.OSU_PROTOCOL}chan/#english.", 1, expectedActions: LinkAction.OpenChannel);
addMessageWithChecks($"Join my{OsuGameBase.OSU_PROTOCOL}chan/#english.", 1, expectedActions: LinkAction.OpenChannel);
addMessageWithChecks("Join my #english or #japanese channels.", 2, expectedActions: new[] { LinkAction.OpenChannel, LinkAction.OpenChannel });
addMessageWithChecks("Join my #english or #nonexistent #hashtag channels.", 1, expectedActions: LinkAction.OpenChannel);
addMessageWithChecks("Hello world\uD83D\uDE12(<--This is an emoji). There are more:\uD83D\uDE10\uD83D\uDE00,\uD83D\uDE20");
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2 changes: 1 addition & 1 deletion osu.Game/Online/Chat/MessageFormatter.cs
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Expand Up @@ -28,7 +28,7 @@ public static class MessageFormatter
// http[s]://<domain>.<tld>[:port][/path][?query][#fragment]
private static readonly Regex advanced_link_regex = new Regex(
// protocol
@"(?<link>[a-z]*?:\/\/" +
@"(?<link>(https?|osu(mp)?):\/\/" +
// domain + tld
@"(?<domain>(?:[a-z0-9]\.|[a-z0-9][a-z0-9-]*[a-z0-9]\.)*[a-z0-9-]*[a-z0-9]" +
// port (optional)
Expand Down