Convert all core ExtensionItem code away from {un,}serialize.

[user/henk/code/inspircd.git] / include / modules / ssl.h

diff --git a/include/modules/ssl.h b/include/modules/ssl.h
index 0f58e0b7bfce4bf43d6c3357b052e6e900ae420c..6fc2379ff42c00bf13461af81340f95832741719 100644 (file)
--- a/include/modules/ssl.h
+++ b/include/modules/ssl.h
@@ -112,9 +112,21 @@ class ssl_cert : public refcountbase
                return revoked;
        }
 
+       /** Get certificate usability
+       * @return True if the certificate is not expired nor revoked
+       */
+       bool IsUsable()
+       {
+               return !invalid && !revoked && error.empty();
+       }
+
+       /** Get CA trust status
+       * @return True if the certificate is issued by a CA
+       * and valid.
+       */
        bool IsCAVerified()
        {
-               return trusted && !invalid && !revoked && !unknownsigner && error.empty();
+               return IsUsable() && trusted && !unknownsigner;
        }
 
        std::string GetMetaLine()
@@ -138,7 +150,40 @@ class SSLIOHook : public IOHook
         */
        reference<ssl_cert> certificate;
 
+       /** Reduce elements in a send queue by appending later elements to the first element until there are no more
+        * elements to append or a desired length is reached
+        * @param sendq SendQ to work on
+        * @param targetsize Target size of the front element
+        */
+       static void FlattenSendQueue(StreamSocket::SendQueue& sendq, size_t targetsize)
+       {
+               if ((sendq.size() <= 1) || (sendq.front().length() >= targetsize))
+                       return;
+
+               // Avoid multiple repeated SSL encryption invocations
+               // This adds a single copy of the queue, but avoids
+               // much more overhead in terms of system calls invoked
+               // by an IOHook.
+               std::string tmp;
+               tmp.reserve(std::min(targetsize, sendq.bytes())+1);
+               do
+               {
+                       tmp.append(sendq.front());
+                       sendq.pop_front();
+               }
+               while (!sendq.empty() && tmp.length() < targetsize);
+               sendq.push_front(tmp);
+       }
+
  public:
+       static SSLIOHook* IsSSL(StreamSocket* sock)
+       {
+               IOHook* const iohook = sock->GetIOHook();
+               if ((iohook) && ((iohook->prov->type == IOHookProvider::IOH_SSL)))
+                       return static_cast<SSLIOHook*>(iohook);
+               return NULL;
+       }
+
        SSLIOHook(IOHookProvider* hookprov)
                : IOHook(hookprov)
        {
@@ -148,7 +193,7 @@ class SSLIOHook : public IOHook
         * Get the certificate sent by this peer
         * @return The SSL certificate sent by the peer, NULL if no cert was sent
         */
-       ssl_cert* GetCertificate() const
+       virtual ssl_cert* GetCertificate() const
        {
                return certificate;
        }
@@ -158,13 +203,26 @@ class SSLIOHook : public IOHook
         * @return The fingerprint of the SSL client certificate sent by the peer,
         * empty if no cert was sent
         */
-       std::string GetFingerprint() const
+       virtual std::string GetFingerprint() const
        {
                ssl_cert* cert = GetCertificate();
-               if (cert)
+               if (cert && cert->IsUsable())
                        return cert->GetFingerprint();
                return "";
        }
+
+       /**
+        * Get the ciphersuite negotiated with the peer
+        * @param out String where the ciphersuite string will be appended to
+        */
+       virtual void GetCiphersuite(std::string& out) const = 0;
+
+
+       /** Retrieves the name of the SSL connection which is sent via SNI.
+        * @param out String that the server name will be appended to.
+        * returns True if the server name was retrieved; otherwise, false.
+        */
+       virtual bool GetServerName(std::string& out) const = 0;
 };
 
 /** Helper functions for obtaining SSL client certificates and key fingerprints
@@ -180,11 +238,10 @@ class SSLClientCert
         */
        static ssl_cert* GetCertificate(StreamSocket* sock)
        {
-               IOHook* iohook = sock->GetIOHook();
-               if ((!iohook) || (iohook->prov->type != IOHookProvider::IOH_SSL))
+               SSLIOHook* ssliohook = SSLIOHook::IsSSL(sock);
+               if (!ssliohook)
                        return NULL;
 
-               SSLIOHook* ssliohook = static_cast<SSLIOHook*>(iohook);
                return ssliohook->GetCertificate();
        }
 
@@ -218,6 +275,12 @@ class UserCertificateAPIBase : public DataProvider
         */
        virtual ssl_cert* GetCertificate(User* user) = 0;
 
+       /** Set the SSL certificate of a user.
+        * @param user The user whose certificate to set.
+        * @param cert The SSL certificate to set for the user.
+        */
+       virtual void SetCertificate(User* user, ssl_cert* cert) = 0;
+
        /** Get the key fingerprint from a user's certificate
         * @param user The user whose key fingerprint to get, user may be remote
         * @return The key fingerprint from the user's SSL certificate or an empty string