From 1cbc2783b692029af18c1b046b9c9480572b2f72 Mon Sep 17 00:00:00 2001
From: Alexander Vdolainen <alex@vapaa.xyz>
Date: Tue, 16 Mar 2021 01:32:33 +0200
Subject: [PATCH] types and miscs for ejabberd message are done.

---
 include/ejabbermsg.h | 48 ++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 44 insertions(+), 4 deletions(-)

diff --git a/include/ejabbermsg.h b/include/ejabbermsg.h
index 09a9451..ec654f7 100644
--- a/include/ejabbermsg.h
+++ b/include/ejabbermsg.h
@@ -21,15 +21,55 @@
 #ifndef __EJABBERDMSG_H__
 #define __EJABBERDMSG_H__
 
+/*
+ * in order to avoid extensive strncmps
+ * that's a way faster to precalculate
+ * djb hash for each action.
+ * according to documentation there are the few ones:
+ *  = auth:user:server:password (authentication itself)
+ *  = isuser:user:server (check is user exist)
+ *  = setpass:user:server:password (set new password)
+ *  = tryregister:user:server:password (try to register a new account)
+ *  = removeuser:user:server (remove user's account)
+ *  = removeuser3:user:server:password (the same as above, but works with
+ *    right password only)
+ */
+#define AUTH_HASH         0x000000017C944157
+#define ISUSER_HASH       0x00000653052FCFC0
+#define SETPASS_HASH      0x0000D0B68C342068
+#define TRYREGISTER_HASH  0xC0D7C0FAC0ED2809
+#define REMOVEUSER_HASH   0x7272BF5C0AA994F2
+#define REMOVEUSER3_HASH  0xC0CAAADD5FDC3365
+
+/* type used for ejabberd action */
+typedef enum {
+  EJA_AUTH = 1,
+  EJA_ISUSER = 2,
+  EJA_SETPASS = 3,
+  EJA_TRYREGISTER = 4,
+  EJA_REMOVEUSER = 5,
+  EJA_REMOVEUSER3 = 6,
+  EJA_UNKNOWN = 7,
+} ejabber_action_t;
+
+/* limits for allocation */
 #define MAX_USER_LEN  256
 #define MAX_DOMAIN_LEN  128
 #define MAX_PASSWORD_LEN  128
 
 struct ejabber_msg {
-  int action;
-  char user[MAX_USER_LEN];
-  char domain[MAX_DOMAIN_LEN];
-  char password[MAX_PASSWORD_LEN];
+  ejabber_action_t aev; /* message action */
+  char *msg_data; /* all data from the message */
+  char *user; /* pointer to the user part */
+  char *domain; /* pointer to the domain/server part of the message */
+  char *password; /* pointer to the password part of the message */
 };
 
+/* little helpers to avoid structure's names hunting */
+#define ejabber_msg_event(c)  (c)->aev
+#define ejabber_msg_data(c)  (c)->msg_data
+#define ejabber_msg_user(c)  (c)->user
+#define ejabber_msg_domain(c)  (c)->domain
+#define ejabber_msg_password(c)  (c)->password
+
 #endif /* __EJABBERDMSG_H__ */