Mercurial > prosody-modules

annotate mod_compression_unsafe/README.markdown @ 5800:8566a423da88

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_groups_internal: Set group names as roster groups
author Kim Alvefur <zash@zash.se>
date Sat, 23 Dec 2023 17:27:35 +0100
parents 4b7e6c01aa1c
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2776
3092ae96c1f0 mod_compression: Rename to mod_compression_unsafe and add security note
Matthew Wild <mwild1@gmail.com>
parents: 2486
diff changeset
1 **NOTE:** XMPP compression has unresolved [security concerns](https://mail.jabber.org/pipermail/standards/2014-October/029215.html),
3092ae96c1f0 mod_compression: Rename to mod_compression_unsafe and add security note
Matthew Wild <mwild1@gmail.com>
parents: 2486
diff changeset
2 and this module has been removed from Prosody and renamed.
3092ae96c1f0 mod_compression: Rename to mod_compression_unsafe and add security note
Matthew Wild <mwild1@gmail.com>
parents: 2486
diff changeset
3
2483
b3097323278f mod_compression/README: Some cleanup and rewording
Kim Alvefur <zash@zash.se>
parents: 2482
diff changeset
4 While the bandwidth usage of XMPP isn't that much, compressing the data
b3097323278f mod_compression/README: Some cleanup and rewording
Kim Alvefur <zash@zash.se>
parents: 2482
diff changeset
5 sent to/from your server can give significant benefits to those on slow
2482
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
6 connections, such as dial-up or mobile networks. Prosody supports
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
7 compression for client-to-server (if your client supports it) and
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
8 server-to-server streams using the mod\_compression plugin.
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
9
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
10 # Details
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
11
2483
b3097323278f mod_compression/README: Some cleanup and rewording
Kim Alvefur <zash@zash.se>
parents: 2482
diff changeset
12 mod\_compression implements [XEP-0138], and supports the zlib compression
b3097323278f mod_compression/README: Some cleanup and rewording
Kim Alvefur <zash@zash.se>
parents: 2482
diff changeset
13 algorithm.
2482
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
14
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
15 ## Dependencies
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
16
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
17 The XMPP protocol specifies that all clients and servers supporting
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
18 compression must support the "zlib" compression method, and this is what
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
19 Prosody uses. However you will need to install zlib support for Lua on
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
20 your system. There are different ways of doing this depending on your
2484
560378965b82 mod_compression/README: Fix formatting
Kim Alvefur <zash@zash.se>
parents: 2483
diff changeset
21 system. If in doubt whether it is installed correctly, the command
2486
a5d4a78c7619 mod_compression/README: Include lua-zlib installation instructions and link to source
Kim Alvefur <zash@zash.se>
parents: 2484
diff changeset
22 `lua -lzlib` in a console should open a Lua prompt with no errors.
a5d4a78c7619 mod_compression/README: Include lua-zlib installation instructions and link to source
Kim Alvefur <zash@zash.se>
parents: 2484
diff changeset
23
a5d4a78c7619 mod_compression/README: Include lua-zlib installation instructions and link to source
Kim Alvefur <zash@zash.se>
parents: 2484
diff changeset
24 Debian/Ubuntu
a5d4a78c7619 mod_compression/README: Include lua-zlib installation instructions and link to source
Kim Alvefur <zash@zash.se>
parents: 2484
diff changeset
25 : `apt-get install lua-zlib`
2482
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
26
2486
a5d4a78c7619 mod_compression/README: Include lua-zlib installation instructions and link to source
Kim Alvefur <zash@zash.se>
parents: 2484
diff changeset
27 LuaRocks
a5d4a78c7619 mod_compression/README: Include lua-zlib installation instructions and link to source
Kim Alvefur <zash@zash.se>
parents: 2484
diff changeset
28 : `luarocks install lua-zlib`
a5d4a78c7619 mod_compression/README: Include lua-zlib installation instructions and link to source
Kim Alvefur <zash@zash.se>
parents: 2484
diff changeset
29
a5d4a78c7619 mod_compression/README: Include lua-zlib installation instructions and link to source
Kim Alvefur <zash@zash.se>
parents: 2484
diff changeset
30 Source
a5d4a78c7619 mod_compression/README: Include lua-zlib installation instructions and link to source
Kim Alvefur <zash@zash.se>
parents: 2484
diff changeset
31 : <https://github.com/brimworks/lua-zlib>
2482
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
32
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
33 # Usage
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
34
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
35 ``` lua
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
36 modules_enabled = {
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
37 -- Other modules
2793
4b7e6c01aa1c mod_compression_unsafe README: Fix module name (thanks Flow)
Matthew Wild <mwild1@gmail.com>
parents: 2776
diff changeset
38 "compression_unsafe"; -- Enable mod_compression_unsafe
2482
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
39 }
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
40 ```
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
41
2483
b3097323278f mod_compression/README: Some cleanup and rewording
Kim Alvefur <zash@zash.se>
parents: 2482
diff changeset
42 ## Configuration
2482
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
43
2483
b3097323278f mod_compression/README: Some cleanup and rewording
Kim Alvefur <zash@zash.se>
parents: 2482
diff changeset
44 The compression level can be set using the `compression_level` option
b3097323278f mod_compression/README: Some cleanup and rewording
Kim Alvefur <zash@zash.se>
parents: 2482
diff changeset
45 which can be a number from 1 to 9. Higher compression levels will use
b3097323278f mod_compression/README: Some cleanup and rewording
Kim Alvefur <zash@zash.se>
parents: 2482
diff changeset
46 more resources but less bandwidth.
2482
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
47
2483
b3097323278f mod_compression/README: Some cleanup and rewording
Kim Alvefur <zash@zash.se>
parents: 2482
diff changeset
48 ## Example
2482
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
49
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
50 ``` lua
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
51 modules_enabled = {
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
52 -- Other modules
2793
4b7e6c01aa1c mod_compression_unsafe README: Fix module name (thanks Flow)
Matthew Wild <mwild1@gmail.com>
parents: 2776
diff changeset
53 "compression_unsafe"; -- Enable mod_compression_unsafe
2482
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
54 }
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
55  
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
56 compression_level = 5
c96a53b0b820 mod_compression: Import from Prosody, revision 0c69305ab525
Kim Alvefur <zash@zash.se>
parents:
diff changeset
57 ```