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## Hotline v.1.2.3 Login Sequence
### TLDR
1. TCP handshake
2. Hotline proto handshake
3. Client fires off:
a. Login transaction (107)
b. tranGetUserNameList (300)
c. tranGetMsg (101)
4. Server replies to each
### Long version
1. Client -> Server TCP handshake
2. Hotline proto handshake (TRTPHOTL)
3. Client sends Login transaction (107)
```
00. // flags
00 // isReply
00 6b // transaction type: Login transaction (107)
00 00 00 01 // ID
00 00 00 00 // error code
00 00 00 13 // total size
00 00 00 13 // data size
00 02 // field count
00 66 // fieldUserName (102)
00 07 // field length
75 6e 6e 61 6d 65 64 // unnamed
00 68 // fieldUserIconID (104)
00 02 // field length
07 d1 // 1233
```
4. Server sends empty reply to login transaction (107)
00
01
00 00
00 00 00 01
00 00 00 00
00 00 00 02
00 00 00 02
00 00
5. Client sends tranGetUserNameList (300) (with some weird extra data at the end??)
00
00
01 2c // tranGetUserNameList (300)
00 00 00 02 // ID
00 00 00 00 // Error Code
00 00 00 02
00 00 00 02
00 00
00 00
00 65 00 00 00 03 00 00 00 00 00 00
00 02
00 00
00 02
00 00
Server sends tranServerMsg
00
00
00 68 // tranServerMsg (104)
00 00 00 01
00 00 00 00
00 00 00 a4
00 00 00 a4
00 01
00 65 // fieldData (101)
00 9e
54 68 65 20 73 65 72 76 65 72 20 79 6f 75
20 61 72 65 20 63 6f 6e 6e 65 63 74 65 64 20 74
6f 20 69 73 20 6e 6f 74 20 6c 69 63 65 6e 73 65
64 20 61 6e 64 20 69 73 20 66 6f 72 20 65 76 61
6c 75 61 74 69 6f 6e 20 75 73 65 20 6f 6e 6c 79
2e 20 50 6c 65 61 73 65 20 65 6e 63 6f 75 72 61
67 65 20 74 68 65 20 61 64 6d 69 6e 69 73 74 72
61 74 6f 72 20 6f 66 20 74 68 69 73 20 73 65 72
76 65 72 20 74 6f 20 70 75 72 63 68 61 73 65 20
61 20 6c 69 63 65 6e 73 65 64 20 63 6f 70 79 2e
## Hotline 1.9.2 Login Sequence
1. Client/Server TCP handshake
2. Hotline Proto handshake
2. Client sends Login transaction (107)
- 105: UserLogin
- 106: UserPassword
- 160: Version
3. Server sends reply with no type and fields:
- 160: Version
- 161: Banner ID
- 162: Server Name
4. Server sends Agreement transaction (109)
5. Client sends Agreed transaction (121)
- 102: User name
- 104: User icon ID
- 113: Options
- 215: Automatic Reponse (optional)
6. Server sends reply with no type and no fields
7. Server sends User Access (354)
TBD
```
```
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