From 5f031349833d18d9fe5495b848c2d3fb7fd7f8f0 Mon Sep 17 00:00:00 2001
From: Attila Molnar <attilamolnar@hush.com>
Date: Thu, 4 Sep 2014 12:58:25 +0200
Subject: Pass Modes::ChangeList references to the OnPreMode hook, make it
 modifiable

This gets rid of the duplicated mode parsing logic in m_namedmodes
---
 src/modules/m_namedmodes.cpp | 69 +++++++++++++++++++-------------------------
 1 file changed, 29 insertions(+), 40 deletions(-)

(limited to 'src/modules/m_namedmodes.cpp')

diff --git a/src/modules/m_namedmodes.cpp b/src/modules/m_namedmodes.cpp
index 5c0ffeea5..4004db00e 100644
--- a/src/modules/m_namedmodes.cpp
+++ b/src/modules/m_namedmodes.cpp
@@ -89,6 +89,12 @@ class DummyZ : public ModeHandler
 	{
 		list = true;
 	}
+
+	// Handle /MODE #chan Z
+	void DisplayList(User* user, Channel* chan)
+	{
+		::DisplayList(user, chan);
+	}
 };
 
 class ModuleNamedModes : public Module
@@ -110,39 +116,22 @@ class ModuleNamedModes : public Module
 		ServerInstance->Modules->SetPriority(this, I_OnPreMode, PRIORITY_FIRST);
 	}
 
-	ModResult OnPreMode(User* source, User* dest, Channel* channel, const std::vector<std::string>& parameters) CXX11_OVERRIDE
+	ModResult OnPreMode(User* source, User* dest, Channel* channel, Modes::ChangeList& modes) CXX11_OVERRIDE
 	{
 		if (!channel)
 			return MOD_RES_PASSTHRU;
-		if (parameters[1].find('Z') == std::string::npos)
-			return MOD_RES_PASSTHRU;
-		if (parameters.size() <= 2)
-		{
-			DisplayList(source, channel);
-			return MOD_RES_DENY;
-		}
-
-		std::vector<std::string> newparms;
-		newparms.push_back(parameters[0]);
-		newparms.push_back(parameters[1]);
 
-		std::string modelist = newparms[1];
-		bool adding = true;
-		unsigned int param_at = 2;
-		for(unsigned int i = 0; i < modelist.length(); i++)
+		Modes::ChangeList::List& list = modes.getlist();
+		for (Modes::ChangeList::List::iterator i = list.begin(); i != list.end(); )
 		{
-			unsigned char modechar = modelist[i];
-			if (modechar == '+' || modechar == '-')
+			Modes::Change& curr = *i;
+			// Replace all namebase (dummyZ) modes being changed with the actual
+			// mode handler and parameter. The parameter format of the namebase mode is
+			// <modename>[=<parameter>].
+			if (curr.mh == &dummyZ)
 			{
-				adding = (modechar == '+');
-				continue;
-			}
-			ModeHandler *mh = ServerInstance->Modes->FindMode(modechar, MODETYPE_CHANNEL);
-			if (modechar == 'Z')
-			{
-				std::string name, value;
-				if (param_at < parameters.size())
-					name = parameters[param_at++];
+				std::string name = curr.param;
+				std::string value;
 				std::string::size_type eq = name.find('=');
 				if (eq != std::string::npos)
 				{
@@ -150,36 +139,36 @@ class ModuleNamedModes : public Module
 					name = name.substr(0, eq);
 				}
 
-				mh = ServerInstance->Modes->FindMode(name, MODETYPE_CHANNEL);
+				ModeHandler* mh = ServerInstance->Modes->FindMode(name, MODETYPE_CHANNEL);
 				if (!mh)
 				{
 					// Mode handler not found
-					modelist.erase(i--, 1);
+					i = list.erase(i);
 					continue;
 				}
 
-				if (mh->GetNumParams(adding))
+				curr.param.clear();
+				if (mh->GetNumParams(curr.adding))
 				{
 					if (value.empty())
 					{
 						// Mode needs a parameter but there wasn't one
-						modelist.erase(i--, 1);
+						i = list.erase(i);
 						continue;
 					}
 
-					newparms.push_back(value);
+					// Change parameter to the text after the '='
+					curr.param = value;
 				}
 
-				modelist[i] = mh->GetModeChar();
-			}
-			else if (mh && mh->GetNumParams(adding) && param_at < parameters.size())
-			{
-				newparms.push_back(parameters[param_at++]);
+				// Put the actual ModeHandler in place of the namebase handler
+				curr.mh = mh;
 			}
+
+			++i;
 		}
-		newparms[1] = modelist;
-		ServerInstance->Modes->Process(newparms, source);
-		return MOD_RES_DENY;
+
+		return MOD_RES_PASSTHRU;
 	}
 };
 
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