From cf6a8ee7e3fb11ea19d627216f53118c563a0a71 Mon Sep 17 00:00:00 2001
From: Attila Molnar <attilamolnar@hush.com>
Date: Tue, 30 Aug 2016 16:12:39 +0200
Subject: Replace loop over alphabet with loop over mode list in several places

---
 src/mode.cpp                         |  9 +++++----
 src/modules/m_check.cpp              | 26 +++++++++++++++-----------
 src/modules/m_spanningtree/capab.cpp | 24 +++++++++++-------------
 3 files changed, 31 insertions(+), 28 deletions(-)

diff --git a/src/mode.cpp b/src/mode.cpp
index b7a7b7d41..d58944f1f 100644
--- a/src/mode.cpp
+++ b/src/mode.cpp
@@ -246,11 +246,12 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, Mode
 			unsigned int ourrank = chan->GetPrefixValue(user);
 			if (ourrank < neededrank)
 			{
-				PrefixMode* neededmh = NULL;
-				for(char c='A'; c <= 'z'; c++)
+				const PrefixMode* neededmh = NULL;
+				const PrefixModeList& prefixmodes = GetPrefixModes();
+				for (PrefixModeList::const_iterator i = prefixmodes.begin(); i != prefixmodes.end(); ++i)
 				{
-					PrefixMode* privmh = FindPrefixMode(c);
-					if (privmh && privmh->GetPrefixRank() >= neededrank)
+					const PrefixMode* const privmh = *i;
+					if (privmh->GetPrefixRank() >= neededrank)
 					{
 						// this mode is sufficient to allow this action
 						if (!neededmh || privmh->GetPrefixRank() < neededmh->GetPrefixRank())
diff --git a/src/modules/m_check.cpp b/src/modules/m_check.cpp
index ddac033c1..4330f410d 100644
--- a/src/modules/m_check.cpp
+++ b/src/modules/m_check.cpp
@@ -109,6 +109,19 @@ class CommandCheck : public Command
 		return ret;
 	}
 
+	static std::string GetAllowedOperOnlyModes(LocalUser* user, ModeType modetype)
+	{
+		std::string ret;
+		const ModeParser::ModeHandlerMap& modes = ServerInstance->Modes.GetModes(modetype);
+		for (ModeParser::ModeHandlerMap::const_iterator i = modes.begin(); i != modes.end(); ++i)
+		{
+			const ModeHandler* const mh = i->second;
+			if ((mh->NeedsOper()) && (user->HasModePermission(mh)))
+				ret.push_back(mh->GetModeChar());
+		}
+		return ret;
+	}
+
  public:
 	CommandCheck(Module* parent)
 		: Command(parent,"CHECK", 1)
@@ -179,17 +192,8 @@ class CommandCheck : public Command
 				context.Write("opertype", oper->name);
 				if (loctarg)
 				{
-					std::string umodes;
-					std::string cmodes;
-					for(char c='A'; c <= 'z'; c++)
-					{
-						ModeHandler* mh = ServerInstance->Modes->FindMode(c, MODETYPE_USER);
-						if (mh && mh->NeedsOper() && loctarg->HasModePermission(mh))
-							umodes.push_back(c);
-						mh = ServerInstance->Modes->FindMode(c, MODETYPE_CHANNEL);
-						if (mh && mh->NeedsOper() && loctarg->HasModePermission(mh))
-							cmodes.push_back(c);
-					}
+					std::string umodes = GetAllowedOperOnlyModes(loctarg, MODETYPE_USER);
+					std::string cmodes = GetAllowedOperOnlyModes(loctarg, MODETYPE_CHANNEL);
 					context.Write("modeperms", "user=" + umodes + " channel=" + cmodes);
 
 					CheckContext::List opcmdlist(context, "commandperms");
diff --git a/src/modules/m_spanningtree/capab.cpp b/src/modules/m_spanningtree/capab.cpp
index b75fbc3cc..a2e68aa61 100644
--- a/src/modules/m_spanningtree/capab.cpp
+++ b/src/modules/m_spanningtree/capab.cpp
@@ -82,22 +82,20 @@ std::string TreeSocket::MyModules(int filter)
 static std::string BuildModeList(ModeType type)
 {
 	std::vector<std::string> modes;
-	for(char c='A'; c <= 'z'; c++)
+	const ModeParser::ModeHandlerMap& mhs = ServerInstance->Modes.GetModes(type);
+	for (ModeParser::ModeHandlerMap::const_iterator i = mhs.begin(); i != mhs.end(); ++i)
 	{
-		ModeHandler* mh = ServerInstance->Modes->FindMode(c, type);
-		if (mh)
+		const ModeHandler* const mh = i->second;
+		std::string mdesc = mh->name;
+		mdesc.push_back('=');
+		const PrefixMode* const pm = mh->IsPrefixMode();
+		if (pm)
 		{
-			std::string mdesc = mh->name;
-			mdesc.push_back('=');
-			PrefixMode* pm = mh->IsPrefixMode();
-			if (pm)
-			{
-				if (pm->GetPrefix())
-					mdesc.push_back(pm->GetPrefix());
-			}
-			mdesc.push_back(mh->GetModeChar());
-			modes.push_back(mdesc);
+			if (pm->GetPrefix())
+				mdesc.push_back(pm->GetPrefix());
 		}
+		mdesc.push_back(mh->GetModeChar());
+		modes.push_back(mdesc);
 	}
 	std::sort(modes.begin(), modes.end());
 	return irc::stringjoiner(modes);
-- 
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