Difference between revisions of "317 Protocol"
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Revision as of 04:55, 5 January 2010
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Login Protocol
The login is comprised of four stages in which the client and server switch in regards to which one is reading and which one is writing.
Variables:
The login process has a lot of variable data, compiled here is a list of the variables and their different values.
Name Hash
A hash of the player name, thought to be used to select an appropriate login server. This has no use in current private servers.
Server Session Key
The server-session-key is one of two ciphers used to encrypt the game protocol, using the ISAAC algorithms.
"Data File Version"
The CRC checks for the cache files.
User ID
The ID of the user.
Username
The username of the player, used to identify their account.
Password
The password of the player account, used so only they can log into their account.
Client Session Key
The client-session-key is one of two ciphers used to encrypt the game protocol, using the ISAAC algorithms.
Connect Status
The status of the connection.
Value | Status |
---|---|
16 | Signifies that the connection is new. |
18 | Signifies that the session is reconnecting a previously lost connection. |
Size
The size of the unencrypted login packet, used to determine how many bytes need to be read from the stream by the server.
Client Version
The memory-version of the game client.
Value | Status |
---|---|
0 | Signifies the client is a low-memory client. |
1 | Signifies that the client is a high-memory client. |
CRC Values
9 4-byte values, Each containing the CRC of their respective cache files. Used by the server to verify client is up to date.
Player Status
The in-game player status - player, player moderator, or administrator.
Value | Status |
---|---|
0 | Signifies that this player is a normal player. |
1 | Signifies that this player is a player moderator. |
2 | Signifies that this player is an administrator. |
Flagged
If set to 1, information about mouse movements etc. are sent to the server. Suspected bot accounts are flagged.
Response Codes
At the beginning and end of the login procedure, we send different values to the client to allow or deny a login. The various values show different messages on the login box on the client or do something internally.
Value | Response |
---|---|
-1 | Waits for 2000ms and tries again while counting failures. |
0 | Exchanges session keys, player name, password, etc. |
1 | Waits for 2000ms and tries again. |
2 | Client made a successful login. |
3 | "Invalid username or password." |
4 | "Your account has been disabled. Please check your message-center for details." |
5 | "Your account is already logged in. Try again in 60 secs..." |
6 | "RuneScape has been updated! Please reload this page." |
7 | "This world is full. Please use a different world." |
8 | "Unable to connect. Login server offline." |
9 | "Login limit exceeded. Too many connections from your address." |
10 | "Unable to connect. Bad session id." |
11 | "Login server rejected session. Please try again." |
12 | "You need a members account to login to this world. Please subscribe, or use a different world." |
13 | "Could not complete login. Please try using a different world." |
14 | "The server is being updated. Please wait 1 minute and try again." |
15 | See the notes below. |
16 | "Login attempts exceeded. Please wait 1 minute and try again." |
17 | "You are standing in a members-only area. To play on this world move to a free area first." |
20 | "Invalid loginserver requested. Please try using a different world." |
21 | "You have only just left another world. Your profile will be transferred in: (number) seconds." |
None of the above | "Unexpected server response. Please try using a different world." |
Regarding response code 15
On the server, players are not unregistered for quite some time. This can be best witnessed when the client forcefully closes the connection while in combat. If you're quick enough before the player dies or kills the NPC, login attempts during that time return that the account is already logged in. This probably explains why the message says "try again in 60 seconds", and they just reused the response when the player is truly logged in.
Going along with this "players aren't offline yet" idea, when the client experiences some lag and performs a reconnect, it sends byte 18 as it's connection type to the server.
The server most likely saves this as a boolean (reconnect = var == 18;). When the login is entirely validated, meaning the password's are okay and the server isn't full, it can either send back the normal response, 2, or 15.
But why 15? If you look at the client code, you'll see that the chat messages aren't cleared. If you've ever had a poor connection you've noticed that your chat stays there upon a reconnect, and this is exactly why. When you implement response code 15 though, you do NOT need to send the "player status" or the "flagged" bytes.
Login Process:
Stage 1: Client -> Server
Data Type | Value |
---|---|
ubyte | 14 |
ubyte | "name hash" |
Stage 2: Server -> Client
Data Type | Value |
---|---|
byte | 0 |
byte | 0 |
byte | 0 |
byte | 0 |
byte | 0 |
byte | 0 |
byte | 0 |
byte | 0 |
byte | "response code" |
long | "server session key" |
Stage 3: Client -> Server
Data Type | Value |
---|---|
byte | "connect status" |
byte | "size" |
byte | 255 |
short | 317 |
byte | "client version" |
int | "crc values"[0] |
int | "crc values"[1] |
int | "crc values"[2] |
int | "crc values"[3] |
int | "crc values"[4] |
int | "crc values"[5] |
int | "crc values"[6] |
int | "crc values"[7] |
int | "crc values"[8] |
byte | 10 |
long | "client session key" |
long | "server session key" |
int | "user id" |
RS String | "username" |
RS String | "password" |
Stage 4: Server -> Client
Data Type | Value |
---|---|
byte | "response code" |
byte | "player status" |
byte | "flagged" |
Game Protocol
The game protocol is the in-game communication of player actions between the server and client.
Server -> Client Packets
Opcode | Type | Length (bytes) | Name | Description |
---|---|---|---|---|
1 | FIXED | 0 | Animation reset | Resets all animations in the immediate area. |
24 | FIXED | 1 | Flash sidebar | Causes a sidebar icon to start flashing. |
35 | FIXED | 4 | Camera shake | Causes the camera to shake. |
50 | FIXED | 9 | Send add friend | Sends a friend to the friend list. |
68 | FIXED | 0 | Reset button state | Resets the button state for all buttons. |
71 | FIXED | 3 | Send sidebar interface | Assigns an interface to one of the tabs in the game sidebar. |
73 | FIXED | 4 | Load map region | Loads a new map region. |
79 | FIXED | 4 | Scroll position | Sets the scrollbar position of an interface. |
97 | FIXED | 2 | Show interface | Displays a normal interface. |
99 | FIXED | 1 | Minimap State | Sets the mini map's state. |
107 | FIXED | 0 | Reset camera | Resets the camera position. |
109 | FIXED | 0 | Logout | Disconnects the client from the server. |
110 | FIXED | 1 | Run energy | Sends the players run energy level. |
114 | FIXED | 2 | System update | Sends how many seconds until a 'System Update.' |
122 | FIXED | 4 | Interface color | Changes the color of an interface. |
126 | VARIABLE_SHORT | N/A | Send text | Attaches text to an interface. |
135 | FIXED | 6 | Skill level | Sends a skill level to the client. |
164 | FIXED | 2 | Chat interface | Shows an interface in the chat box. |
176 | FIXED | 10 | Open welcome screen | Displays the welcome screen. |
196 | VARIABLE_BYTE | N/A | Send private message | Sends a private message to another player. |
206 | FIXED | 3 | Chat settings | Sends the chat privacy settings. |
208 | FIXED | 2 | Walkable interface | Displays an interface in walkable mode. |
219 | FIXED | 0 | Clear screen | Clears the screen of all open interfaces. |
221 | FIXED | 1 | Friends list status | Friends list load status. |
240 | FIXED | 2 | Weight | Sends the players weight amount. |
241 | VARIABLE_SHORT | N/A | Construct map region | Constructs a dynamic map region using a palette of 8*8 tiles. |
246 | FIXED | 6 | Interface item | Displays an item model inside an interface. |
248 | FIXED | 4 | Child frame | Attaches an interface within an interface. |
249 | FIXED | 3 | Initialize player | Sends the player's membership status and their current index on the server's player list. |
253 | VARIABLE_BYTE | N/A | Send message | Sends a server message (e.g. 'Welcome to RuneScape') or trade/duel request. |
Client -> Server Packets
Opcode | Type | Length (bytes) | Name | Description |
---|---|---|---|---|
0 | FIXED | 0 | Idle | Sent when there are no actions being performed by the player for this cycle. |
3 | FIXED | 1 | Focus change | Sent when the game client window goes out of focus. |
4 | VARIABLE BYTE | N/A | Chat | Sent when the player enters a chat message. |
14 | FIXED | 8 | Item on player | Sent when a player uses an item on another player. |
17 | FIXED | 2 | NPC action 2 | Sent when a player clicks the second option of an NPC. |
21 | FIXED | 2 | NPC action 3 | Sent when a player clicks the third option of an NPC. |
25 | FIXED | 10 | Item on floor | Sent when a player uses an item on another item thats on the floor. |
39 | FIXED | 2 | Follow | Sent when a player clicks the follow option on another player. |
40 | FIXED | N/A | NpcDialogue | N/A |
41 | FIXED | 6 | Equip item | Sent when a player equips an item. |
43 | FIXED | 6 | Bank 10 items | Sent when a player banks 10 of a certain item. |
53 | FIXED | 4 | Item on item | Sent when a player uses an item with another item. |
70 | FIXED | 6 | Object action 3 | Sent when the player clicks the third action available for an object. |
72 | FIXED | 2 | Attack (NPC) | Sent when a player attacks an NPC. |
73 | FIXED | 2 | Trade request | Sent when a player requests a trade with another player. |
74 | FIXED | 8 | Remove ignore | Sent when a player removes a player from their ignore list. |
79 | FIXED | 6 | Light item | Sent when a player attempts to light logs on fire. |
86 | FIXED | 4 | Camera movement | Sent when the player moves the camera. |
87 | FIXED | 6 | Drop item | Sent when a player wants to drop an item onto the ground. |
95 | FIXED | 3 | Privacy options | Sent when a player changes their privacy options (i.e. public chat). |
98 | VARIABLE_BYTE | N/A | Walk on command | Sent when the player should walk somewhere according to a certain action performed, such as clicking an object. |
101 | FIXED | 13 | Design screen | Sent when a player is choosing their character design options. |
103 | VARIABLE_BYTE | N/A | Player command | Sent when the player enters a command in the chat box (e.g. "::command") |
117 | FIXED | 6 | Bank 5 items | Sent when a player banks 5 of a certain item. |
121 | FIXED | 0 | Loading finished | Sent when the client finishes loading a map region. |
122 | FIXED | 6 | Item action 1 | Sent when the player clicks the first option of an item, such as "Bury" for bones. |
126 | VARIABLE BYTE | N/A | Private message | Sent when a player sends a private message to another player. |
129 | FIXED | 6 | Bank all items | Sent when a player banks all of a certain item that they have in their inventory. |
130 | FIXED | 0 | Close window | Sent when a player presses the close, exit or cancel button on an interface. |
132 | FIXED | 6 | Object action 1 | Sent when the player clicks the first option of an object, such as "Cut" for trees. |
133 | FIXED | 8 | Add ignore | Sent when a player adds a player to their ignore list. |
135 | FIXED | 6 | Bank X items part-1 | Sent when a player requests to bank an X amount of items. |
139 | FIXED | 2 | Trade answer | Sent when a player answers a trade request from another player. |
145 | FIXED | 6 | Unequip item | Sent when a player unequips an item. |
155 | FIXED | 2 | NPC action 1 | Sent when a player clicks first option of an NPC, such as "Talk." |
164 | VARIABLE_BYTE | N/A | Regular walk | Sent when the player walks regularly. |
185 | FIXED | 2 | Button click | Sent when a player clicks an in-game button. |
188 | FIXED | 8 | Add friend | Sent when a player adds a friend to their friend list. |
192 | FIXED | 12 | Item on object | Sent when a a player uses an item on an object. |
202 | FIXED | 0 | Idle logout | Sent when the player has become idle and should be logged out. |
208 | FIXED | 4 | Bank X items part-2 | Sent when a player enters an X amount of items they want to bank. |
210 | FIXED | 0 | Region change | Sent when a player enters a new map region. |
214 | FIXED | 7 | Move item | Sent when a player moves an item from one slot to another. |
215 | FIXED | 8 | Remove friend | Sent when a player removes a friend from their friend list. |
218 | FIXED | 8 | Report player | Sent when a player reports another player. |
236 | FIXED | 6 | Pickup ground item | Sent when the player picks up an item from the ground. |
237 | FIXED | 8 | Magic on items | Sent when a player casts magic on the items in their inventory. |
241 | FIXED | 4 | Mouse click | Sent when the player clicks somewhere on the game screen. |
248 | VARIABLE_BYTE | N/A | Map walk | Sent when the player walks using the map. Has 14 additional (assumed to be anticheat) bytes added to the end of it that are ignored. |
252 | FIXED | 6 | Object action 2 | Sent when the player clicks the second option available for an object. |
253 | FIXED | 6 | Ground Item Action | Sent when the player clicks the first option for a ground item (I.E. 'Light Logs') |