1 files changed, 87 insertions, 0 deletions
diff --git a/modules/ns_maxemail.cpp b/modules/ns_maxemail.cpp
new file mode 100644
index 000000000..bf90374d0
--- /dev/null
+++ b/modules/ns_maxemail.cpp
@@ -0,0 +1,87 @@
+/* ns_maxemail.cpp - Limit the amount of times an email address
+ *                   can be used for a NickServ account.
+ *
+ * (C) 2003-2013 Anope Team
+ * Contact us at team@anope.org
+ *
+ * Included in the Anope module pack since Anope 1.7.9
+ * Anope Coder: GeniusDex <geniusdex@anope.org>
+ *
+ * Please read COPYING and README for further details.
+ */
+
+#include "module.h"
+
+class NSMaxEmail : public Module
+{
+	int NSEmailMax;
+
+	bool CheckLimitReached(CommandSource &source, const Anope::string &email)
+	{
+		if (this->NSEmailMax < 1 || email.empty())
+			return false;
+
+		if (this->CountEmail(email, source.nc) < this->NSEmailMax)
+			return false;
+
+		if (this->NSEmailMax == 1)
+			source.Reply(_("The given email address has reached its usage limit of 1 user."));
+		else
+			source.Reply(_("The given email address has reached its usage limit of %d users."), this->NSEmailMax);
+
+		return true;
+	}
+
+	int CountEmail(const Anope::string &email, NickCore *unc)
+	{
+		int count = 0;
+
+		if (email.empty())
+			return 0;
+
+		for (nickcore_map::const_iterator it = NickCoreList->begin(), it_end = NickCoreList->end(); it != it_end; ++it)
+		{
+			const NickCore *nc = it->second;
+
+			if (unc != nc && !nc->email.empty() && nc->email.equals_ci(email))
+				++count;
+		}
+
+		return count;
+	}
+
+ public:
+	NSMaxEmail(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, VENDOR)
+	{
+
+		Implementation i[] = { I_OnReload, I_OnPreCommand };
+		ModuleManager::Attach(i, this, sizeof(i) / sizeof(Implementation));
+
+		OnReload();
+	}
+
+	void OnReload() anope_override
+	{
+		ConfigReader config;
+		this->NSEmailMax = config.ReadInteger("ns_maxemail", "maxemails", "0", 0, false);
+		Log(LOG_DEBUG) << "[ns_maxemail] NSEmailMax set to " << NSEmailMax;
+	}
+
+	EventReturn OnPreCommand(CommandSource &source, Command *command, std::vector<Anope::string> &params) anope_override
+	{
+		if (command->name == "nickserv/register")
+		{
+			if (this->CheckLimitReached(source, params.size() > 1 ? params[1] : ""))
+				return EVENT_STOP;
+		}
+		else if (command->name == "nickserv/set/email")
+		{
+			if (this->CheckLimitReached(source, params.size() > 0 ? params[0] : ""))
+				return EVENT_STOP;
+		}
+
+		return EVENT_CONTINUE;
+	}
+};
+
+MODULE_INIT(NSMaxEmail)