SNAC(04,07)/CH1 channel1 message from server for client

SNAC(04,07)/CH1

SRV_CLIENT_ICBM_CH1

This is the message from server that was sent by another client. It contain two parts: fixed part (sender uin, msg-id cookie, channel, sender info) and message data part. See also additional information about online userinfo block.

00 04	word	SNAC family
00 07	word	SNAC subtype
00 00	word	SNAC flags
xx xx xx xx	dword	SNAC request-id

xx xx xx xx xx xx xx xx	qword	msg-id cookie
00 01	word	message channel
xx	byte	screenname string length
xx ..	string	screenname string
xx xx	word	sender warning level
00 04	word	number of TLVs in fixed part

00 01		word		TLV.Type(0x01) - user class
00 02		word		TLV.Length

xx xx

word

user class

00 06		word		TLV.Type(0x06) - user status
00 04		word		TLV.Length

xx xx xx xx

dword

user status

00 0f		word		TLV.Type(0x0f) - user idle time
00 04		word		TLV.Length

xx xx xx xx

dword

client idle time

00 03		word		TLV.Type(0x03) - account creation time
00 04		word		TLV.Length

xx xx xx xx

dword

user account creation time

00 04		word		TLV.Type(0x04) - automated response flag
00 00		word		TLV.Length

empty (this TLV appears in automated responses like away messages)

00 02		word		TLV.Type(0x02) - message data
xx xx		word		TLV.Length

05	byte	fragment identifier (array of required capabilities)
01	byte	fragment version
xx xx	word	TLV.Length

xx ..

array

byte array of required capabilities (1 - text)

01	byte	fragment identifier (message text)
01	byte	fragment version
xx xx	word	TLV.Length

00 00	word	Message charset number
ff ff	word	Message charset subset
xx ..	string (ascii)	Message text string

Example SNAC dumps with flap header:


  2a 02 ae e3 00 66 00 04  00 07 00 00 9a b3 8d eb  *....f..........
  3e bc 91 9e 4a ba ef c9  00 01 07 31 30 30 30 30  >...J......10000
  30 30 00 00 00 04 00 01  00 02 00 50 00 06 00 04  00.........P....
  00 01 00 00 00 0f 00 04  00 00 04 66 00 03 00 04  ...........f....
  00 00 00 00 00 02 00 24  05 01 00 01 00 01 01 00  .......$........
  1b 00 00 00 00 74 65 73  74 20 70 6c 61 69 6e 2d  .....test plain-
  74 65 78 74 20 6d 65 73  73 61 67 65              text message