prosody-modules: mod_firewall/README.markdown annotate

annotate mod_firewall/README.markdown @ 5799:c75328aeaba3

mod_http_oauth2: Reduce log level for error delivery via redirect This is supposed to be normal in OAuth2, not really deserving a warning log message.

author	Kim Alvefur <zash@zash.se>
date	Sat, 23 Dec 2023 00:06:35 +0100
parents	ad5c77793750
children	1ae8f7b3787a

rev	line source
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	1 ---
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	2 labels:
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	3 - 'Stage-Alpha'
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	4 summary: 'A rule-based stanza filtering module'
4169 ae738969f38a mod_firewall: Add packaging metadata to include libraries Kim Alvefur <zash@zash.se> parents: 4152 diff changeset	5 rockspec:
ae738969f38a mod_firewall: Add packaging metadata to include libraries Kim Alvefur <zash@zash.se> parents: 4152 diff changeset	6 build:
ae738969f38a mod_firewall: Add packaging metadata to include libraries Kim Alvefur <zash@zash.se> parents: 4152 diff changeset	7 modules:
ae738969f38a mod_firewall: Add packaging metadata to include libraries Kim Alvefur <zash@zash.se> parents: 4152 diff changeset	8 mod_firewall.actions: actions.lib.lua
ae738969f38a mod_firewall: Add packaging metadata to include libraries Kim Alvefur <zash@zash.se> parents: 4152 diff changeset	9 mod_firewall.conditions: conditions.lib.lua
ae738969f38a mod_firewall: Add packaging metadata to include libraries Kim Alvefur <zash@zash.se> parents: 4152 diff changeset	10 mod_firewall.definitions: definitions.lib.lua
ae738969f38a mod_firewall: Add packaging metadata to include libraries Kim Alvefur <zash@zash.se> parents: 4152 diff changeset	11 mod_firewall.marks: marks.lib.lua
ae738969f38a mod_firewall: Add packaging metadata to include libraries Kim Alvefur <zash@zash.se> parents: 4152 diff changeset	12 mod_firewall.test: test.lib.lua
5522 e8f46195b292 mod_firewall: Include scripts with plugin installer (thanks gooya) Kim Alvefur <zash@zash.se> parents: 5235 diff changeset	13 copy_directories:
e8f46195b292 mod_firewall: Include scripts with plugin installer (thanks gooya) Kim Alvefur <zash@zash.se> parents: 5235 diff changeset	14 - scripts
4169 ae738969f38a mod_firewall: Add packaging metadata to include libraries Kim Alvefur <zash@zash.se> parents: 4152 diff changeset	15 ---
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	16
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	17 ------------------------------------------------------------------------
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	18
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	19 Note: mod\_firewall is in its very early stages. This documentation
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	20 is liable to change, and some described functionality may be missing,
2375 7ad312b4cefe mod_firewall/README: Remove mention of comments section from google code Kim Alvefur <zash@zash.se> parents: 2370 diff changeset	21 incomplete or contain bugs.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	22
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	23 ------------------------------------------------------------------------
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	24
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	25 Introduction
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	26 ============
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	27
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	28 A firewall is an invaluable tool in the sysadmin's toolbox. However
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	29 while low-level firewalls such as iptables and pf are incredibly good at
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	30 what they do, they are generally not able to handle application-layer
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	31 rules.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	32
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	33 The goal of mod\_firewall is to provide similar services at the XMPP
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	34 layer. Based on rule scripts it can efficiently block, bounce, drop,
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	35 forward, copy, redirect stanzas and more! Furthermore all rules can be
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	36 applied and updated dynamically at runtime without restarting the
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	37 server.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	38
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	39 Details
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	40 =======
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	41
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	42 mod\_firewall loads one or more scripts, and compiles these to Lua code
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	43 that reacts to stanzas flowing through Prosody. The firewall script
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	44 syntax is unusual, but straightforward.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	45
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	46 A firewall script is dominated by rules. Each rule has two parts:
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	47 conditions, and actions. When a stanza matches all of the conditions,
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	48 all of the actions are executed in order.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	49
29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	50 Here is a simple example to block stanzas from spammer@example.com:
29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	51
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	52 FROM: spammer@example.com
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	53 DROP.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	54
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	55 FROM is a condition, and DROP is an action. This is about as simple as
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	56 it gets. How about heading to the other extreme? Let's demonstrate
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	57 something more complex that mod\_firewall can do for you:
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	58
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	59 %ZONE myorganisation: staff.myorg.example, support.myorg.example
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	60
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	61 ENTERING: myorganisation
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	62 KIND: message
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	63 TIME: 12am-9am, 5pm-12am, Saturday, Sunday
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	64 REPLY=Sorry, I am afraid our office is closed at the moment. If you need assistance, please call our 24-hour support line on 123-456-789.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	65
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	66 This rule will reply with a short message whenever someone tries to send
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	67 a message to someone at any of the hosts defined in the 'myorganisation'
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	68 outside of office hours.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	69
2387 5bfb2ccab2ab mod_firewall: README: Add more info about specifying rule set files Matthew Wild <mwild1@gmail.com> parents: 2375 diff changeset	70 Specifying rule sets
5bfb2ccab2ab mod_firewall: README: Add more info about specifying rule set files Matthew Wild <mwild1@gmail.com> parents: 2375 diff changeset	71 --------------------
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	72
2387 5bfb2ccab2ab mod_firewall: README: Add more info about specifying rule set files Matthew Wild <mwild1@gmail.com> parents: 2375 diff changeset	73 Firewall rules should be written into text files, e.g. `ruleset.pfw` file.
5bfb2ccab2ab mod_firewall: README: Add more info about specifying rule set files Matthew Wild <mwild1@gmail.com> parents: 2375 diff changeset	74 One or more rule files can be specified in the configuration using:
5bfb2ccab2ab mod_firewall: README: Add more info about specifying rule set files Matthew Wild <mwild1@gmail.com> parents: 2375 diff changeset	75
5bfb2ccab2ab mod_firewall: README: Add more info about specifying rule set files Matthew Wild <mwild1@gmail.com> parents: 2375 diff changeset	76 firewall_scripts = { "path/to/ruleset.pfw", "path/to/ruleset2.pfw" }
5bfb2ccab2ab mod_firewall: README: Add more info about specifying rule set files Matthew Wild <mwild1@gmail.com> parents: 2375 diff changeset	77
4236 c316ad1087d4 mod_firewall: Some additional documentation improvements, particularly adding section links where needed Matthew Wild <mwild1@gmail.com> parents: 4235 diff changeset	78 If multiple files are specified and they both add rules to the same [chains](#chains),
2387 5bfb2ccab2ab mod_firewall: README: Add more info about specifying rule set files Matthew Wild <mwild1@gmail.com> parents: 2375 diff changeset	79 each file's rules will be processed in order, but the order of files is undefined.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	80
4152 87daef9ed4e7 Improve mod_firewall readme Christian Weiske <cweiske@cweiske.de> parents: 4127 diff changeset	81 Reloading Prosody's configuration also reloads firewall rules.
87daef9ed4e7 Improve mod_firewall readme Christian Weiske <cweiske@cweiske.de> parents: 4127 diff changeset	82
87daef9ed4e7 Improve mod_firewall readme Christian Weiske <cweiske@cweiske.de> parents: 4127 diff changeset	83 Make sure that `firewall_scripts` is in the global section of the configuration file
87daef9ed4e7 Improve mod_firewall readme Christian Weiske <cweiske@cweiske.de> parents: 4127 diff changeset	84 and not below a virtual host or a component - unless you want per-vhost
87daef9ed4e7 Improve mod_firewall readme Christian Weiske <cweiske@cweiske.de> parents: 4127 diff changeset	85 firewall rules.
87daef9ed4e7 Improve mod_firewall readme Christian Weiske <cweiske@cweiske.de> parents: 4127 diff changeset	86
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	87 Conditions
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	88 ----------
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	89
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	90 All conditions must come before any action in a rule block. The
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	91 condition name is followed by a colon (':'), and the value to test for.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	92
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	93 A condition can be preceded or followed by `NOT` to negate its match.
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	94 For example:
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	95
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	96 NOT FROM: user@example.com
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	97 KIND NOT: message
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	98
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	99 Some conditions do not take parameters, and these should end with just a
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	100 question mark, like:
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	101
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	102 IN ROSTER?
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	103
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	104 ### Zones
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	105
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	106 A 'zone' is one or more hosts or JIDs. It is possible to match when a
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	107 stanza is entering or leaving a zone, while at the same time not
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	108 matching traffic passing between JIDs in the same zone.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	109
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	110 Zones are defined at the top of a script with the following syntax (they
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	111 are not part of a rule block):
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	112
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	113 %ZONE myzone: host1, host2, user@host3, foo.bar.example
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	114
2388 b6d59998dba7 mod_firewall: README: Document dynamic '$local' zone Matthew Wild <mwild1@gmail.com> parents: 2387 diff changeset	115 There is an automatic zone named `$local`, which automatically includes
b6d59998dba7 mod_firewall: README: Document dynamic '$local' zone Matthew Wild <mwild1@gmail.com> parents: 2387 diff changeset	116 all of the current server's active hosts (including components). It can
b6d59998dba7 mod_firewall: README: Document dynamic '$local' zone Matthew Wild <mwild1@gmail.com> parents: 2387 diff changeset	117 be used to match stanzas entering or leaving the current server.
b6d59998dba7 mod_firewall: README: Document dynamic '$local' zone Matthew Wild <mwild1@gmail.com> parents: 2387 diff changeset	118
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	119 A host listed in a zone also matches all users on that host (but not
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	120 subdomains).
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	121
29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	122 The following zone-matching conditions are supported:
29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	123
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	124 Condition Matches
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	125 ------------ ------------------------------------------
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	126 `ENTERING` When a stanza is entering the named zone
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	127 `LEAVING` When a stanza is leaving the named zone
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	128
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	129 ### Lists
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	130
4583 bb8459c220c9 mod_firewall: Documentation updates to reduce confusion and use inclusive language Matthew Wild <mwild1@gmail.com> parents: 4236 diff changeset	131 It is possible to create or load lists of strings for use in scripts. For
bb8459c220c9 mod_firewall: Documentation updates to reduce confusion and use inclusive language Matthew Wild <mwild1@gmail.com> parents: 4236 diff changeset	132 example, you might load a list of blocked JIDs, malware URLs or simple words
bb8459c220c9 mod_firewall: Documentation updates to reduce confusion and use inclusive language Matthew Wild <mwild1@gmail.com> parents: 4236 diff changeset	133 that you want to filter messages on.
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	134
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	135 List type Example
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	136 ----------- -----------------------
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	137 memory %LIST spammers: memory
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	138 file %LIST spammers: file:/etc/spammers.txt
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	139 http %LIST spammers: http://example.com/spammers.txt
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	140
4126 68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	141 #### List types
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	142 ##### memory
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	143
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	144 ```
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	145 %LIST name: memory (limit: number)
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	146 ```
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	147
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	148 A memory-only list, with an optional limit. Supports addition and removal of items by scripts.
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	149
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	150 If a limit is provided, the oldest item will be discarded to make room for a new item if the
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	151 list is full. The limit is useful to prevent infinite memory growth on busy servers.
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	152
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	153 ##### file
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	154
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	155 ```
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	156 %LIST name: file:/path/to/file (missing: string)
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	157 ```
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	158
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	159 Reads a list from a file. The list can be added to and removed from by scripts, but
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	160 these changes do not persist between restarts.
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	161
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	162 If the file is missing, an error will be raised. The optional 'missing' parameter can be set
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	163 to 'ignore' (e.g. `(missing: ignore)`) to ignore a missing file.
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	164
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	165 ##### http
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	166
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	167 ```
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	168 %LIST name: http://example.com/ (ttl: number, pattern: pat, hash: sha1, checkcerts: when-sni)
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	169 ```
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	170
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	171 Fetches a list from a HTTP or HTTPS URL. The following options are accepted:
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	172
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	173 Option Description
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	174 ------- -----------
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	175 ttl Seconds to cache the list for. After expiry, it will be refetched. Default 3600 (1 hour).
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	176 pattern Optional pattern used to extract list entries from the response. Default is to treat each line as a single item.
68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	177 hash Optional hash to be applied to items before looking them up in the list, e.g. sha1 or sha256.
4127 e9e10ec1b91c mod_firewall: Add checkcerts option for HTTP lists, cert verification disabled when SNI unsupported Matthew Wild <mwild1@gmail.com> parents: 4126 diff changeset	178 checkcert Whether to verify HTTPS certificates. May be "always", "never" or "when-sni". Default "when-sni".
e9e10ec1b91c mod_firewall: Add checkcerts option for HTTP lists, cert verification disabled when SNI unsupported Matthew Wild <mwild1@gmail.com> parents: 4126 diff changeset	179
e9e10ec1b91c mod_firewall: Add checkcerts option for HTTP lists, cert verification disabled when SNI unsupported Matthew Wild <mwild1@gmail.com> parents: 4126 diff changeset	180 The "when-sni" default disables certificate verification when Prosody's HTTP client API doesn't support SNI,
e9e10ec1b91c mod_firewall: Add checkcerts option for HTTP lists, cert verification disabled when SNI unsupported Matthew Wild <mwild1@gmail.com> parents: 4126 diff changeset	181 as in Prosody 0.11.6 and earlier.
4126 68ceb7e0cfe6 mod_firewall: Add docs for list types and parameters Matthew Wild <mwild1@gmail.com> parents: 4072 diff changeset	182
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	183 #### CHECK LIST
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	184
4236 c316ad1087d4 mod_firewall: Some additional documentation improvements, particularly adding section links where needed Matthew Wild <mwild1@gmail.com> parents: 4235 diff changeset	185 Checks whether a simple [expression](#expressions) is found in a given list.
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	186
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	187 Example:
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	188
4583 bb8459c220c9 mod_firewall: Documentation updates to reduce confusion and use inclusive language Matthew Wild <mwild1@gmail.com> parents: 4236 diff changeset	189 %LIST blocked_jids: file:/etc/prosody/blocked_jids.txt
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	190
4583 bb8459c220c9 mod_firewall: Documentation updates to reduce confusion and use inclusive language Matthew Wild <mwild1@gmail.com> parents: 4236 diff changeset	191 # Rule to block presence subscription requests from blocked JIDs
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	192 KIND: presence
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	193 TYPE: subscribe
4583 bb8459c220c9 mod_firewall: Documentation updates to reduce confusion and use inclusive language Matthew Wild <mwild1@gmail.com> parents: 4236 diff changeset	194 CHECK LIST: blocked_jids contains $<@from>
bb8459c220c9 mod_firewall: Documentation updates to reduce confusion and use inclusive language Matthew Wild <mwild1@gmail.com> parents: 4236 diff changeset	195 BOUNCE=policy-violation (Your JID is blocked)
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	196
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	197 #### SCAN
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	198
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	199 SCAN allows you to search inside a stanza for a given pattern, and check each result against a list. For example,
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	200 you could scan a message body for words and check if any of the words are found in a given list.
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	201
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	202 Before using SCAN, you need to define a search location and a pattern. The search location uses the same 'path'
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	203 format as documented under the 'INSPECT' condition. Patterns can be any valid Lua pattern.
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	204
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	205 To use the above example:
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	206
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	207 # Define a search location called 'body' which fetches the text of the 'body' element
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	208 %SEARCH body: body#
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	209 # Define a pattern called 'word' which matches any sequence of letters
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	210 %PATTERN word: [A-Za-z]+
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	211 # Finally, we also need our list of "bad" words:
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	212 %LIST badwords: file:/etc/prosody/bad_words.txt
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	213
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	214 # Now we can use these to SCAN incoming stanzas
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	215 # If it finds a match, bounce the stanza
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	216 SCAN: body for word in badwords
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	217 BOUNCE=policy-violation (This word is not allowed!)
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	218
2545 9b46d24edf0d mod_firewall: Add and document COUNT condition Matthew Wild <mwild1@gmail.com> parents: 2540 diff changeset	219 #### COUNT
9b46d24edf0d mod_firewall: Add and document COUNT condition Matthew Wild <mwild1@gmail.com> parents: 2540 diff changeset	220
9b46d24edf0d mod_firewall: Add and document COUNT condition Matthew Wild <mwild1@gmail.com> parents: 2540 diff changeset	221 COUNT is similar to SCAN, in that it uses a defined SEARCH and breaks it up according to a PATTERN. Then it
9b46d24edf0d mod_firewall: Add and document COUNT condition Matthew Wild <mwild1@gmail.com> parents: 2540 diff changeset	222 counts the number of results.
9b46d24edf0d mod_firewall: Add and document COUNT condition Matthew Wild <mwild1@gmail.com> parents: 2540 diff changeset	223
9b46d24edf0d mod_firewall: Add and document COUNT condition Matthew Wild <mwild1@gmail.com> parents: 2540 diff changeset	224 For example, to block every message with more than one URL:
9b46d24edf0d mod_firewall: Add and document COUNT condition Matthew Wild <mwild1@gmail.com> parents: 2540 diff changeset	225
9b46d24edf0d mod_firewall: Add and document COUNT condition Matthew Wild <mwild1@gmail.com> parents: 2540 diff changeset	226 # Define a search location called 'body' which fetches the text of the 'body' element
9b46d24edf0d mod_firewall: Add and document COUNT condition Matthew Wild <mwild1@gmail.com> parents: 2540 diff changeset	227 %SEARCH body: body#
9b46d24edf0d mod_firewall: Add and document COUNT condition Matthew Wild <mwild1@gmail.com> parents: 2540 diff changeset	228 # Define a pattern called 'url' which matches HTTP links
9b46d24edf0d mod_firewall: Add and document COUNT condition Matthew Wild <mwild1@gmail.com> parents: 2540 diff changeset	229 %PATTERN url: https?://%S+
9b46d24edf0d mod_firewall: Add and document COUNT condition Matthew Wild <mwild1@gmail.com> parents: 2540 diff changeset	230
9b46d24edf0d mod_firewall: Add and document COUNT condition Matthew Wild <mwild1@gmail.com> parents: 2540 diff changeset	231 COUNT: url in body > 1
9b46d24edf0d mod_firewall: Add and document COUNT condition Matthew Wild <mwild1@gmail.com> parents: 2540 diff changeset	232 BOUNCE=policy-violation (Up to one HTTP URL is allowed in messages)
9b46d24edf0d mod_firewall: Add and document COUNT condition Matthew Wild <mwild1@gmail.com> parents: 2540 diff changeset	233
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	234 ### Stanza matching
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	235
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	236 Condition Matches
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	237 ----------- ------------------------------------------------------------------------------------------------------------------------------------------------------------
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	238 `KIND` The kind of stanza. May be 'message', 'presence' or 'iq'
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	239 `TYPE` The type of stanza. This varies depending on the kind of stanza. See 'Stanza types' below for more information.
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	240 `PAYLOAD` The stanza contains a child with the given namespace. Useful for determining the type of an iq request, or whether a message contains a certain extension.
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	241 `INSPECT` The node at the specified path exists or matches a given string. This allows you to look anywhere inside a stanza. See below for examples and more.
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	242
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	243 #### Stanza types
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	244
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	245 Stanza Valid types
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	246 ---------- ------------------------------------------------------------------------------------------
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	247 iq get, set, result, error
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	248 presence available, unavailable, probe, subscribe, subscribed, unsubscribe, unsubscribed, error
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	249 message normal, chat, groupchat, headline, error
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	250
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	251 Note: The type 'available' for presence does not actually appear in
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	252 the protocol. Available presence is signalled by the omission of a type.
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	253 Similarly, a message stanza with no type is equivalent to one of type
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	254 'normal'. mod\_firewall handles these cases for you automatically.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	255
5703 0ac4545cb4f9 mod_firewall: Tweak page outline Kim Alvefur <zash@zash.se> parents: 5530 diff changeset	256 #### Sender/recipient matching
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	257
5530 8226ac08484e mod_firewall: Add 'FROM FULL JID?' condition Matthew Wild <mwild1@gmail.com> parents: 5529 diff changeset	258 Condition Matches
8226ac08484e mod_firewall: Add 'FROM FULL JID?' condition Matthew Wild <mwild1@gmail.com> parents: 5529 diff changeset	259 --------------- -------------------------------------------------------
8226ac08484e mod_firewall: Add 'FROM FULL JID?' condition Matthew Wild <mwild1@gmail.com> parents: 5529 diff changeset	260 `FROM` The JID in the 'from' attribute matches the given JID.
8226ac08484e mod_firewall: Add 'FROM FULL JID?' condition Matthew Wild <mwild1@gmail.com> parents: 5529 diff changeset	261 `TO` The JID in the 'to' attribute matches the given JID.
8226ac08484e mod_firewall: Add 'FROM FULL JID?' condition Matthew Wild <mwild1@gmail.com> parents: 5529 diff changeset	262 `TO SELF` The stanza is sent by any of a user's resources to their own bare JID.
8226ac08484e mod_firewall: Add 'FROM FULL JID?' condition Matthew Wild <mwild1@gmail.com> parents: 5529 diff changeset	263 `TO FULL JID` The stanza is addressed to a valid full JID on the local server (full JIDs include a resource at the end, and only exist for the lifetime of a single session, therefore the recipient must be online, or this check will not match).
8226ac08484e mod_firewall: Add 'FROM FULL JID?' condition Matthew Wild <mwild1@gmail.com> parents: 5529 diff changeset	264 `FROM FULL JID` The stanza is from a full JID (unlike `TO FULL JID` this check is on the format of the JID only).
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	265
4236 c316ad1087d4 mod_firewall: Some additional documentation improvements, particularly adding section links where needed Matthew Wild <mwild1@gmail.com> parents: 4235 diff changeset	266 The TO and FROM conditions both accept wildcards in the JID when it is
c316ad1087d4 mod_firewall: Some additional documentation improvements, particularly adding section links where needed Matthew Wild <mwild1@gmail.com> parents: 4235 diff changeset	267 enclosed in angle brackets ('\<...\>'). For example:
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	268
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	269 # All users at example.com
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	270 FROM: <*>@example.com
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	271
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	272 # The user 'admin' on any subdomain of example.com
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	273 FROM: admin@<*.example.com>
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	274
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	275 You can also use [Lua's pattern
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	276 matching](http://www.lua.org/manual/5.1/manual.html#5.4.1) for more
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	277 powerful matching abilities. Patterns are a lightweight
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	278 regular-expression alternative. Simply contain the pattern in double
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	279 angle brackets. The pattern is automatically anchored at the start and
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	280 end (so it must match the entire portion of the JID).
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	281
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	282 # Match admin@example.com, and admin1@example.com, etc.
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	283 FROM: <<admin%d*>>@example.com
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	284
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	285 Note: It is important to know that 'example.com' is a valid JID on
4583 bb8459c220c9 mod_firewall: Documentation updates to reduce confusion and use inclusive language Matthew Wild <mwild1@gmail.com> parents: 4236 diff changeset	286 its own, and does not match 'user@example.com'. To efficiently match
bb8459c220c9 mod_firewall: Documentation updates to reduce confusion and use inclusive language Matthew Wild <mwild1@gmail.com> parents: 4236 diff changeset	287 domains we recommend defining them as [Zones](#zones).
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	288
2047 2ec7c0b8a371 mod_firewall/README: Fix table Kim Alvefur <zash@zash.se> parents: 2036 diff changeset	289 Condition Matches
2ec7c0b8a371 mod_firewall/README: Fix table Kim Alvefur <zash@zash.se> parents: 2036 diff changeset	290 ---------------- ---------------------------------------------------------------
2ec7c0b8a371 mod_firewall/README: Fix table Kim Alvefur <zash@zash.se> parents: 2036 diff changeset	291 `FROM_EXACTLY` The JID in the 'from' attribute exactly matches the given JID
2ec7c0b8a371 mod_firewall/README: Fix table Kim Alvefur <zash@zash.se> parents: 2036 diff changeset	292 `TO_EXACTLY` The JID in the 'to' attribute exactly matches the given JID
2036 7ba6ed553c93 mod_firewall/conditions: Add FROM_EXACTLY and TO_EXACTLY Matthew Wild <mwild1@gmail.com> parents: 2002 diff changeset	293
7ba6ed553c93 mod_firewall/conditions: Add FROM_EXACTLY and TO_EXACTLY Matthew Wild <mwild1@gmail.com> parents: 2002 diff changeset	294 These additional conditions do not support pattern matching, but are
7ba6ed553c93 mod_firewall/conditions: Add FROM_EXACTLY and TO_EXACTLY Matthew Wild <mwild1@gmail.com> parents: 2002 diff changeset	295 useful to match the exact to/from address on a stanza. For example, if
7ba6ed553c93 mod_firewall/conditions: Add FROM_EXACTLY and TO_EXACTLY Matthew Wild <mwild1@gmail.com> parents: 2002 diff changeset	296 no resource is specified then only bare JIDs will be matched. TO and FROM
7ba6ed553c93 mod_firewall/conditions: Add FROM_EXACTLY and TO_EXACTLY Matthew Wild <mwild1@gmail.com> parents: 2002 diff changeset	297 match all resources if no resource is specified to match.
7ba6ed553c93 mod_firewall/conditions: Add FROM_EXACTLY and TO_EXACTLY Matthew Wild <mwild1@gmail.com> parents: 2002 diff changeset	298
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	299 Note: Some chains execute before Prosody has performed any
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	300 normalisation or validity checks on the to/from JIDs on an incoming
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	301 stanza. It is not advisable to perform access control or similar rules
4236 c316ad1087d4 mod_firewall: Some additional documentation improvements, particularly adding section links where needed Matthew Wild <mwild1@gmail.com> parents: 4235 diff changeset	302 on JIDs in these chains (see the [chain documentation](#chains) for more info).
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	303
5704 ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	304 #### GeoIP matching
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	305
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	306 Condition Matches
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	307 ---------------- --------------------------------------------------------------
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	308 `FROM COUNTRY` Two or three letter country code looked up in GeoIP database
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	309
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	310 This condition uses a GeoIP database to look up the origin country of
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	311 the IP attached to the current session.
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	312
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	313 For example:
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	314
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	315 # 3 letter country code
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	316 FROM COUNTRY: SWE
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	317
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	318 # or 2 letter
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	319 FROM COUNTRY: SE
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	320
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	321 # Explicit
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	322 FROM COUNTRY: code=SE
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	323 FROM COUNTRY: code3=SWE
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	324
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	325 Note: This requires that the `lua-geoip` and `geoip-database`
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	326 packages are installed (on Debian, package names may differ on other
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	327 operating systems).
ad5c77793750 mod_firewall: Add FROM COUNTRY condition based on GeoIP DB Kim Alvefur <zash@zash.se> parents: 5703 diff changeset	328
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	329 #### INSPECT
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	330
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	331 INSPECT takes a 'path' through the stanza to get a string (an attribute
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	332 value or text content). An example is the best way to explain. Let's
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	333 check that a user is not trying to register an account with the username
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	334 'admin'. This stanza comes from [XEP-0077: In-band
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	335 Registration](http://xmpp.org/extensions/xep-0077.html#example-4):
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	336
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	337 ``` xml
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	338 <iq type='set' id='reg2'>
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	339 <query xmlns='jabber:iq:register'>
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	340 <username>bill</username>
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	341 <password>Calliope</password>
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	342 <email>bard@shakespeare.lit</email>
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	343 </query>
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	344 </iq>
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	345 ```
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	346
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	347 KIND: iq
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	348 TYPE: set
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	349 PAYLOAD: jabber:iq:register
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	350 INSPECT: {jabber:iq:register}query/username#=admin
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	351 BOUNCE=not-allowed (The username 'admin' is reserved.)
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	352
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	353 That weird string deserves some explanation. It is a path, divided into
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	354 segments by '/'. Each segment describes an element by its name,
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	355 optionally prefixed by its namespace in curly braces ('{...}'). If the
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	356 path ends with a '\#' then the text content of the last element will be
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	357 returned. If the path ends with '@name' then the value of the attribute
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	358 'name' will be returned.
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	359
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	360 You can use INSPECT to test for the existence of an element or attribute,
4235 45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	361 or you can check if it matches a specific value, e.g. by appending `=VALUE`
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	362 (like in the example above, that checks if the content of username is 'admin').
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	363
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	364 #### INSPECT comparison operators
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	365
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	366 As well as checking for an exact string match, there are some other modifiers
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	367 you can apply to the comparison:
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	368
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	369 Comparison Matches when
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	370 ------------- -------------------------------------------------------
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	371 `=` The value is exactly the given string.
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	372 `/=` The value is or contains the given string (e.g. `/=admin` would match `administrator` or `myadmin`).
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	373 `~=` The value matches the given [Lua pattern](https://www.lua.org/manual/5.2/manual.html#6.4.1).
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	374
4235 45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	375 Finally, if the comparison operator is preceded by a `$` character, [expressions](#expressions)
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	376 will be interpreted in the string following the comparison operator.
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	377
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	378 e.g. `INSPECT: {jabber:iq:register}query/username}$/=$(session.host)` would match
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	379 if the username of an account registration contained the session's current hostname
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	380 somewhere in it.
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	381
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	382 #### INSPECT performance
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	383
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	384 INSPECT can be somewhat slower than the other stanza matching conditions. To
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	385 minimise performance impact, always place it below other faster
4235 45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	386 condition checks where possible (e.g. in the example above we first checked KIND,
45606c9f529a mod_firewall: Improve 'INSPECT' comparison operator documentation Matthew Wild <mwild1@gmail.com> parents: 4169 diff changeset	387 TYPE and PAYLOAD matched what we wanted before reaching the INSPECT rule).
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	388
2342 6848297cf40a mod_firewall: Add conditions for testing whether a sender of a stanza is in the recipient's roster (or in a certain roster group) Matthew Wild <mwild1@gmail.com> parents: 2114 diff changeset	389 ### Roster
6848297cf40a mod_firewall: Add conditions for testing whether a sender of a stanza is in the recipient's roster (or in a certain roster group) Matthew Wild <mwild1@gmail.com> parents: 2114 diff changeset	390
4966 4ffd6551f4bb mod_firewall: README: Clarify when storage access can occur with roster checks Matthew Wild <mwild1@gmail.com> parents: 4965 diff changeset	391 These conditions access the roster of the recipient (only). Therefore they cannot (currently)
4236 c316ad1087d4 mod_firewall: Some additional documentation improvements, particularly adding section links where needed Matthew Wild <mwild1@gmail.com> parents: 4235 diff changeset	392 be used in some [chains](#chains), such as for outgoing messages (the recipient may be on another server).
2342 6848297cf40a mod_firewall: Add conditions for testing whether a sender of a stanza is in the recipient's roster (or in a certain roster group) Matthew Wild <mwild1@gmail.com> parents: 2114 diff changeset	393
4966 4ffd6551f4bb mod_firewall: README: Clarify when storage access can occur with roster checks Matthew Wild <mwild1@gmail.com> parents: 4965 diff changeset	394 Performance note: these checks can potentially cause storage access (especially if the recipient
4967 1e8381f0d0a8 mod_firewall: README: Fix grammar and further improve wording Matthew Wild <mwild1@gmail.com> parents: 4966 diff changeset	395 is currently offline), so you may want to limit their use in high-traffic situations, and place rules
4966 4ffd6551f4bb mod_firewall: README: Clarify when storage access can occur with roster checks Matthew Wild <mwild1@gmail.com> parents: 4965 diff changeset	396 containing a roster check below other rules (such as a rate limiter). The storage access is
4967 1e8381f0d0a8 mod_firewall: README: Fix grammar and further improve wording Matthew Wild <mwild1@gmail.com> parents: 4966 diff changeset	397 performed unconditionally just before evaluation of the first rule that contains a roster-based
1e8381f0d0a8 mod_firewall: README: Fix grammar and further improve wording Matthew Wild <mwild1@gmail.com> parents: 4966 diff changeset	398 condition, even if earlier conditions in that rule do not match.
2342 6848297cf40a mod_firewall: Add conditions for testing whether a sender of a stanza is in the recipient's roster (or in a certain roster group) Matthew Wild <mwild1@gmail.com> parents: 2114 diff changeset	399
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	400 #### IN ROSTER
2342 6848297cf40a mod_firewall: Add conditions for testing whether a sender of a stanza is in the recipient's roster (or in a certain roster group) Matthew Wild <mwild1@gmail.com> parents: 2114 diff changeset	401
6848297cf40a mod_firewall: Add conditions for testing whether a sender of a stanza is in the recipient's roster (or in a certain roster group) Matthew Wild <mwild1@gmail.com> parents: 2114 diff changeset	402 Tests whether the sender is in the recipient's roster.
6848297cf40a mod_firewall: Add conditions for testing whether a sender of a stanza is in the recipient's roster (or in a certain roster group) Matthew Wild <mwild1@gmail.com> parents: 2114 diff changeset	403
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	404 IN ROSTER?
2342 6848297cf40a mod_firewall: Add conditions for testing whether a sender of a stanza is in the recipient's roster (or in a certain roster group) Matthew Wild <mwild1@gmail.com> parents: 2114 diff changeset	405
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	406 #### IN ROSTER GROUP
2342 6848297cf40a mod_firewall: Add conditions for testing whether a sender of a stanza is in the recipient's roster (or in a certain roster group) Matthew Wild <mwild1@gmail.com> parents: 2114 diff changeset	407
6848297cf40a mod_firewall: Add conditions for testing whether a sender of a stanza is in the recipient's roster (or in a certain roster group) Matthew Wild <mwild1@gmail.com> parents: 2114 diff changeset	408 Tests whether the sender is in the recipient's roster, and in the named group.
6848297cf40a mod_firewall: Add conditions for testing whether a sender of a stanza is in the recipient's roster (or in a certain roster group) Matthew Wild <mwild1@gmail.com> parents: 2114 diff changeset	409
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	410 IN ROSTER GROUP: Friends
2342 6848297cf40a mod_firewall: Add conditions for testing whether a sender of a stanza is in the recipient's roster (or in a certain roster group) Matthew Wild <mwild1@gmail.com> parents: 2114 diff changeset	411
2410 898e70e85185 mod_firewall/README: Document SUBSCRIBED Kim Alvefur <zash@zash.se> parents: 2390 diff changeset	412 #### SUBSCRIBED
898e70e85185 mod_firewall/README: Document SUBSCRIBED Kim Alvefur <zash@zash.se> parents: 2390 diff changeset	413
898e70e85185 mod_firewall/README: Document SUBSCRIBED Kim Alvefur <zash@zash.se> parents: 2390 diff changeset	414 Tests whether the recipient is subscribed to the sender, ie will receive
898e70e85185 mod_firewall/README: Document SUBSCRIBED Kim Alvefur <zash@zash.se> parents: 2390 diff changeset	415 presence updates from them.
898e70e85185 mod_firewall/README: Document SUBSCRIBED Kim Alvefur <zash@zash.se> parents: 2390 diff changeset	416
4236 c316ad1087d4 mod_firewall: Some additional documentation improvements, particularly adding section links where needed Matthew Wild <mwild1@gmail.com> parents: 4235 diff changeset	417 Note that this does work, regardless of direction and which [chain](#chain) is
2410 898e70e85185 mod_firewall/README: Document SUBSCRIBED Kim Alvefur <zash@zash.se> parents: 2390 diff changeset	418 used, since both the sender and the recipient will have mirrored roster
898e70e85185 mod_firewall/README: Document SUBSCRIBED Kim Alvefur <zash@zash.se> parents: 2390 diff changeset	419 entries.
898e70e85185 mod_firewall/README: Document SUBSCRIBED Kim Alvefur <zash@zash.se> parents: 2390 diff changeset	420
2390 28fbe960adcf mod_firewall: README: Document conditions for groups and admins Matthew Wild <mwild1@gmail.com> parents: 2389 diff changeset	421 ### Groups
28fbe960adcf mod_firewall: README: Document conditions for groups and admins Matthew Wild <mwild1@gmail.com> parents: 2389 diff changeset	422
28fbe960adcf mod_firewall: README: Document conditions for groups and admins Matthew Wild <mwild1@gmail.com> parents: 2389 diff changeset	423 Using Prosody's mod\_groups it is possible to define groups of users on the server. You can
28fbe960adcf mod_firewall: README: Document conditions for groups and admins Matthew Wild <mwild1@gmail.com> parents: 2389 diff changeset	424 match based on these groups in firewall rules.
28fbe960adcf mod_firewall: README: Document conditions for groups and admins Matthew Wild <mwild1@gmail.com> parents: 2389 diff changeset	425
2594 1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	426 Condition Matches
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	427 ----------------- ----------------------------
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	428 `FROM GROUP` When the stanza is being sent from a member of the named group
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	429 `TO GROUP` When the stanza is being sent to a member of the named group
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	430 `CROSSING GROUPS` When the stanza is being sent between users of different named groups
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	431
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	432 #### CROSSING GROUPS
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	433
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	434 The `CROSSING GROUPS` condition takes a comma-separated list of groups to check. If the
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	435 sender and recipient are not in the same group (only the listed groups are checked), then the
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	436 this condition matches and the stanza is deemed to be crossing between groups.
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	437
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	438 For example, if you had three groups: Engineering, Marketing and Employees. All users are
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	439 members of the 'Employees' group, and the others are for employees of the named department only.
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	440
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	441 To prevent employees in the marketing department from communicating with engineers, you could use
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	442 the following rule:
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	443
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	444 ```
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	445 CROSSING GROUPS: Marketing, Engineering
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	446 BOUNCE=policy-violation (no communication between these groups is allowed!)
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	447 ```
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	448
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	449 This works, even though both the users are in the 'Employees' group, because that group is not listed
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	450 in the condition.
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	451
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition Matthew Wild <mwild1@gmail.com> parents: 2576 diff changeset	452 In the above example, a user who is member of both groups is not restricted.
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	453
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	454 #### SENT DIRECTED PRESENCE TO SENDER
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	455
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	456 This condition matches if the recipient of a stanza has previously sent directed presence to the sender of the stanza. This
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	457 is often done in XMPP to exchange presence information with JIDs that are not on your roster, such as MUC rooms.
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	458
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	459 This condition does not take a parameter - end the condition name with a question mark:
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	460
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	461 # Rule to bounce messages from senders not in the roster who haven't been sent directed presence
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	462 NOT IN ROSTER?
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	463 NOT SENT DIRECTED PRESENCE TO SENDER?
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	464 BOUNCE=service-unavailable
2390 28fbe960adcf mod_firewall: README: Document conditions for groups and admins Matthew Wild <mwild1@gmail.com> parents: 2389 diff changeset	465
5002 84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	466 ### Permissions
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	467
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	468 Rules can consult Prosody's internal role and permissions system to check whether a certain action may
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	469 be performed. The acting entity, their role, and appropriate context is automatically inferred. All you
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	470 need to do is provide the identifier of the permission that should be checked.
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	471
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	472 Condition Description
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	473 ----------------------- --------------------------------------------------------------------
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	474 `MAY=permission` Checks whether 'permission' is allowed in the current context.
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	475
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	476 As with all other conditions, `MAY` can be combined with `NOT` to negate the result of the check.
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	477
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	478 Example, blocking outgoing stanzas from users with roles that do not allow the 'xmpp:federate' permission:
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	479
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	480 ```
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	481 ::deliver_remote
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	482 MAY NOT: xmpp:federate
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	483 BOUNCE=policy-violation (You are not allowed access to the federation)
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	484 ```
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	485
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	486 ### Roles
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	487
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	488 Condition Matches
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	489 ---------------- -------------------------------------------------------------------------------------
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	490 `TO ROLE` When the recipient JID of the stanza has the named role
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	491 `FROM ROLE` When the sender JID of the stanza has the named role
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	492
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	493 Note: In most cases, you should avoid checking for specific roles, and instead check for
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	494 permissions granted by those roles (using the 'MAY' condition).
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	495
2390 28fbe960adcf mod_firewall: README: Document conditions for groups and admins Matthew Wild <mwild1@gmail.com> parents: 2389 diff changeset	496 ### Admins
28fbe960adcf mod_firewall: README: Document conditions for groups and admins Matthew Wild <mwild1@gmail.com> parents: 2389 diff changeset	497
5002 84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	498 Deprecated: These conditions should no longer be used. Prefer 'MAY', 'TO ROLE' or 'FROM ROLE'.
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible) Matthew Wild <mwild1@gmail.com> parents: 4967 diff changeset	499
2390 28fbe960adcf mod_firewall: README: Document conditions for groups and admins Matthew Wild <mwild1@gmail.com> parents: 2389 diff changeset	500 Prosody allows certain JIDs to be declared as administrators of a host, component or the whole server.
28fbe960adcf mod_firewall: README: Document conditions for groups and admins Matthew Wild <mwild1@gmail.com> parents: 2389 diff changeset	501
2576 95b79d515a65 mod_firewall: README: Document TO/FROM ADMIN, FORWARD, TO SELF and TO FULL JID Matthew Wild <mwild1@gmail.com> parents: 2559 diff changeset	502 Condition Matches
95b79d515a65 mod_firewall: README: Document TO/FROM ADMIN, FORWARD, TO SELF and TO FULL JID Matthew Wild <mwild1@gmail.com> parents: 2559 diff changeset	503 ---------------- -------------------------------------------------------------------------------------
95b79d515a65 mod_firewall: README: Document TO/FROM ADMIN, FORWARD, TO SELF and TO FULL JID Matthew Wild <mwild1@gmail.com> parents: 2559 diff changeset	504 `TO ADMIN` When the recipient of the stanza is admin of the current host
95b79d515a65 mod_firewall: README: Document TO/FROM ADMIN, FORWARD, TO SELF and TO FULL JID Matthew Wild <mwild1@gmail.com> parents: 2559 diff changeset	505 `FROM ADMIN` When the sender of the stanza is admin of the current host
95b79d515a65 mod_firewall: README: Document TO/FROM ADMIN, FORWARD, TO SELF and TO FULL JID Matthew Wild <mwild1@gmail.com> parents: 2559 diff changeset	506 `FROM ADMIN OF` When the sender of the stanza is an admin of the named host on the current server
95b79d515a65 mod_firewall: README: Document TO/FROM ADMIN, FORWARD, TO SELF and TO FULL JID Matthew Wild <mwild1@gmail.com> parents: 2559 diff changeset	507 `TO ADMIN OF` When the recipient of the stanza is an admin of the named host on the current server
2390 28fbe960adcf mod_firewall: README: Document conditions for groups and admins Matthew Wild <mwild1@gmail.com> parents: 2389 diff changeset	508
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	509 ### Time and date
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	510
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	511 #### TIME
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	512
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	513 Matches stanzas sent during certain time periods.
29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	514
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	515 Condition Matches
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	516 ----------- -------------------------------------------------------------------------------------------
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	517 TIME When the current server local time is within one of the comma-separated time ranges given
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	518
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	519 TIME: 10pm-6am, 14:00-15:00
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	520 REPLY=Zzzz.
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	521
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	522 #### DAY
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	523
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	524 It is also possible to match only on certain days of the week.
29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	525
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	526 Condition Matches
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	527 ----------- -----------------------------------------------------------------------------------------------------
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	528 DAY When the current day matches one, or falls within a rage, in the given comma-separated list of days
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	529
29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	530 Example:
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	531
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	532 DAY: Sat-Sun, Wednesday
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	533 REPLY=Sorry, I'm out enjoying life!
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	534
2102 2c225b4b93d2 mod_firewall: README: Add note about time functions using server's local time Matthew Wild <mwild1@gmail.com> parents: 2096 diff changeset	535 All times and dates are handled in the server's local time.
2c225b4b93d2 mod_firewall: README: Add note about time functions using server's local time Matthew Wild <mwild1@gmail.com> parents: 2096 diff changeset	536
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	537 ### Rate-limiting
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	538
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	539 It is possible to selectively rate-limit stanzas, and use rules to
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	540 decide what to do with stanzas when over the limit.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	541
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	542 First, you must define any rate limits that you are going to use in your
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	543 script. Here we create a limiter called 'normal' that will allow 2
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	544 stanzas per second, and then we define a rule to bounce messages when
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	545 over this limit. Note that the `RATE` definition is not part of a rule
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	546 (multiple rules can share the same limiter).
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	547
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	548 %RATE normal: 2 (burst 3)
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	549
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	550 KIND: message
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	551 LIMIT: normal
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	552 BOUNCE=policy-violation (Sending too fast!)
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	553
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	554 The 'burst' parameter on the rate limit allows you to spread the limit
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	555 check over a given time period. For example the definition shown above
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	556 will allow the limit to be temporarily surpassed, as long as it is
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	557 within the limit after 3 seconds. You will almost always want to specify
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	558 a burst factor.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	559
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	560 Both the rate and the burst can be fractional values. For example a rate
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	561 of 0.1 means only one event is allowed every 10 seconds.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	562
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	563 The LIMIT condition actually does two things; first it counts against
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	564 the given limiter, and then it checks to see if the limiter over its
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	565 limit yet. If it is, the condition matches, otherwise it will not.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	566
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	567 Condition Matches
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	568 ----------- --------------------------------------------------------------------------------------------------
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	569 `LIMIT` When the named limit is 'used up'. Using this condition automatically counts against that limit.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	570
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	571 Note: Reloading mod\_firewall resets the current state of any
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	572 limiters.
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	573
2369 2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	574 #### Dynamic limits
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	575
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	576 Sometimes you may want to have multiple throttles in a single condition, using some property of the session or stanza
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	577 to determine which throttle to use. For example, you might have a limit for incoming stanzas, but you want to limit by
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	578 sending JID, instead of all incoming stanzas sharing the same limit.
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	579
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	580 You can use the 'on' keyword for this, like so:
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	581
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	582 LIMIT: normal on EXPRESSION
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	583
4236 c316ad1087d4 mod_firewall: Some additional documentation improvements, particularly adding section links where needed Matthew Wild <mwild1@gmail.com> parents: 4235 diff changeset	584 For more information on [expressions](#expressions), see the section later in this document.
2369 2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	585
2370 5fe483b73fd2 mod_firewall: Rate limiting: Document 'entries' and add option to allow overflowing when full Matthew Wild <mwild1@gmail.com> parents: 2369 diff changeset	586 Each value of 'EXPRESSION' has to be tracked individually in a table, which uses a small amount of memory. To prevent
5fe483b73fd2 mod_firewall: Rate limiting: Document 'entries' and add option to allow overflowing when full Matthew Wild <mwild1@gmail.com> parents: 2369 diff changeset	587 memory exhaustion, the number of tracked values is limited to 1000 by default. You can override this by setting the
5fe483b73fd2 mod_firewall: Rate limiting: Document 'entries' and add option to allow overflowing when full Matthew Wild <mwild1@gmail.com> parents: 2369 diff changeset	588 maximum number of table entries when you define the rate:
5fe483b73fd2 mod_firewall: Rate limiting: Document 'entries' and add option to allow overflowing when full Matthew Wild <mwild1@gmail.com> parents: 2369 diff changeset	589
5fe483b73fd2 mod_firewall: Rate limiting: Document 'entries' and add option to allow overflowing when full Matthew Wild <mwild1@gmail.com> parents: 2369 diff changeset	590 %RATE normal: 2 (burst 3) (entries 4096)
5fe483b73fd2 mod_firewall: Rate limiting: Document 'entries' and add option to allow overflowing when full Matthew Wild <mwild1@gmail.com> parents: 2369 diff changeset	591
5fe483b73fd2 mod_firewall: Rate limiting: Document 'entries' and add option to allow overflowing when full Matthew Wild <mwild1@gmail.com> parents: 2369 diff changeset	592 Old values are automatically removed from the tracking table. However if the tracking table becomes full, new entries
5fe483b73fd2 mod_firewall: Rate limiting: Document 'entries' and add option to allow overflowing when full Matthew Wild <mwild1@gmail.com> parents: 2369 diff changeset	593 will be rejected - it will behave as if the rate limit was reached, even for values that have not been seen before. Since
5fe483b73fd2 mod_firewall: Rate limiting: Document 'entries' and add option to allow overflowing when full Matthew Wild <mwild1@gmail.com> parents: 2369 diff changeset	594 this opens up a potential denial of service (innocent users may be affected if malicious users can fill up the tracking
5fe483b73fd2 mod_firewall: Rate limiting: Document 'entries' and add option to allow overflowing when full Matthew Wild <mwild1@gmail.com> parents: 2369 diff changeset	595 table within the limit period). You can choose to instead "fail open", and allow the rate limit to be temporarily bypassed
5fe483b73fd2 mod_firewall: Rate limiting: Document 'entries' and add option to allow overflowing when full Matthew Wild <mwild1@gmail.com> parents: 2369 diff changeset	596 when the table is full. To choose this behaviour, add `(allow overflow)` to the RATE definition.
5fe483b73fd2 mod_firewall: Rate limiting: Document 'entries' and add option to allow overflowing when full Matthew Wild <mwild1@gmail.com> parents: 2369 diff changeset	597
2108 573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	598 ### Session marking
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	599
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	600 It is possible to 'mark' sessions (see the MARK_ORIGIN action below). To match stanzas from marked sessions, use the
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	601 `ORIGIN_MARKED` condition.
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	602
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	603 Condition Description
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	604 ------------------------------- ---------------------------------------------------------------
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	605 ORIGIN MARKED: markname Matches if the origin has been marked with 'markname'.
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	606 ORIGIN MARKED: markname (Xs) Matches if the origin has been marked with 'markname' within the past X seconds.
2108 573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	607
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	608 Example usage:
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	609
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	610 # This rule drops messages from sessions that have been marked as spammers in the past hour
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	611 ORIGIN MARKED: spammer (3600s)
2108 573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	612 DROP.
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	613
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	614 # This rule marks the origin session as a spammer if they send a message to a honeypot JID
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	615 KIND: message
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	616 TO: honeypot@example.com
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	617 MARK ORIGIN=spammer
2108 573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	618
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	619 Actions
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	620 -------
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	621
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	622 Actions come after all conditions in a rule block. There must be at
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	623 least one action, though conditions are optional.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	624
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	625 An action without parameters ends with a full-stop/period ('.'), and one
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	626 with parameters uses an equals sign ('='):
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	627
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	628 # An action with no parameters:
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	629 DROP.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	630
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	631 # An action with a parameter:
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	632 REPLY=Hello, this is a reply.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	633
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	634 ### Route modification
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	635
5234 f6c71d9d6dc0 mod_firewall: README: Clarify docs about some of the stanza processing actions Matthew Wild <mwild1@gmail.com> parents: 5002 diff changeset	636 The following common actions modify the stanza's route in some way. These
f6c71d9d6dc0 mod_firewall: README: Clarify docs about some of the stanza processing actions Matthew Wild <mwild1@gmail.com> parents: 5002 diff changeset	637 rules will halt further processing of the stanza - no further actions will be
f6c71d9d6dc0 mod_firewall: README: Clarify docs about some of the stanza processing actions Matthew Wild <mwild1@gmail.com> parents: 5002 diff changeset	638 executed, and no further rules will be checked.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	639
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	640 Action Description
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	641 ----------------------- ---------------------------------------------------------------------------------------------------------------------------------------------------------
2559 99b32f77f00d mod_firewall: Document PASS, RETURN and DEFAULT Matthew Wild <mwild1@gmail.com> parents: 2545 diff changeset	642 `PASS.` Stop executing actions and rules on this stanza, and let it through this chain and any calling chains.
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	643 `DROP.` Stop executing actions and rules on this stanza, and discard it.
2559 99b32f77f00d mod_firewall: Document PASS, RETURN and DEFAULT Matthew Wild <mwild1@gmail.com> parents: 2545 diff changeset	644 `DEFAULT.` Stop executing actions and rules on this stanza, prevent any other scripts/modules from handling it, to trigger the appropriate default "unhandled stanza" behaviour. Do not use in custom chains (it is treated as PASS).
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	645 `REDIRECT=jid` Redirect the stanza to the given JID.
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	646 `BOUNCE.` Bounce the stanza with the default error (usually service-unavailable)
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	647 `BOUNCE=error` Bounce the stanza with the given error (MUST be a defined XMPP stanza error, see [RFC6120](http://xmpp.org/rfcs/rfc6120.html#stanzas-error-conditions).
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	648 `BOUNCE=error (text)` As above, but include the supplied human-readable text with a description of the error
5234 f6c71d9d6dc0 mod_firewall: README: Clarify docs about some of the stanza processing actions Matthew Wild <mwild1@gmail.com> parents: 5002 diff changeset	649
f6c71d9d6dc0 mod_firewall: README: Clarify docs about some of the stanza processing actions Matthew Wild <mwild1@gmail.com> parents: 5002 diff changeset	650 Note: It is incorrect behaviour to reply to an 'error' stanza with another error, so BOUNCE will simply act the same as 'DROP' for stanzas that should not be bounced (error stanzas and iq results).
f6c71d9d6dc0 mod_firewall: README: Clarify docs about some of the stanza processing actions Matthew Wild <mwild1@gmail.com> parents: 5002 diff changeset	651
f6c71d9d6dc0 mod_firewall: README: Clarify docs about some of the stanza processing actions Matthew Wild <mwild1@gmail.com> parents: 5002 diff changeset	652 ### Replying and forwarding
f6c71d9d6dc0 mod_firewall: README: Clarify docs about some of the stanza processing actions Matthew Wild <mwild1@gmail.com> parents: 5002 diff changeset	653
f6c71d9d6dc0 mod_firewall: README: Clarify docs about some of the stanza processing actions Matthew Wild <mwild1@gmail.com> parents: 5002 diff changeset	654 These actions cause a new stanza to be generated and sent somewhere.
f6c71d9d6dc0 mod_firewall: README: Clarify docs about some of the stanza processing actions Matthew Wild <mwild1@gmail.com> parents: 5002 diff changeset	655 Processing of the original stanza will continue beyond these actions.
f6c71d9d6dc0 mod_firewall: README: Clarify docs about some of the stanza processing actions Matthew Wild <mwild1@gmail.com> parents: 5002 diff changeset	656
5235 d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	657 Action Description
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	658 ------------------------ ---------------------------------------------------------------------------------------------------------------------------------------------------------
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	659 `REPLY=text` Reply to the stanza (assumed to be a message) with the given text.
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	660 `COPY=jid` Make a copy of the stanza and send the copy to the specified JID. The copied stanza flows through Prosody's routing code, and as such is affected by firewall rules. Be careful to avoid loops.
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	661 `FORWARD=jid` Forward a copy of the stanza to the given JID (using XEP-0297). The stanza will be sent from the current host's JID.
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	662
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	663 ### Reporting
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	664
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	665 Action Description
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	666 ------------------------ ---------------------------------------------------------------------------------------------------------------------------------------------------------
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	667 `REPORT=jid reason text` Forwards the full stanza to `jid` with a XEP-0377 abuse report attached.
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	668
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	669 Only the `jid` is mandatory. The `reason` parameter should be either `abuse`, `spam` or a custom URI. If not specified, it defaults to `abuse`.
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	670 After the reason, some human-readable text may be included to explain the report.
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	671
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	672 Example:
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	673
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	674 ```
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	675 KIND: message
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	676 TO: honeypot@example.com
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	677 REPORT TO=antispam.example.com spam Caught by the honeypot!
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	678 DROP.
d0d251abf595 mod_firewall: Add 'REPORT TO' to report (XEP-0377) a stanza to a specified JID Matthew Wild <mwild1@gmail.com> parents: 5234 diff changeset	679 ```
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	680
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	681 ### Stanza modification
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	682
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	683 These actions make it possible to modify the content and structure of a
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	684 stanza.
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	685
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	686 Action Description
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	687 ------------------------ ------------------------------------------------------------------------
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	688 `STRIP=name` Remove any child elements with the given name in the default namespace
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	689 `STRIP=name namespace` Remove any child elements with the given name and the given namespace
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	690 `INJECT=xml` Inject the given XML into the stanza as a child element
1782 29f3d6b7ad16 Import wiki pages Kim Alvefur <zash@zash.se> parents: diff changeset	691
2108 573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	692 ### Sessions
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	693
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	694 It is possible to mark sessions, and then use these marks to match rules later on.
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	695
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	696 Action Description
573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	697 ------------------------ --------------------------------------------------------------------------
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	698 `MARK ORIGIN=mark` Marks the originating session with the given flag.
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	699 `UNMARK ORIGIN=mark` Removes the given mark from the origin session (if it is set).
2108 573fe9825fba mod_firewall: README: Document session marking Matthew Wild <mwild1@gmail.com> parents: 2105 diff changeset	700
2114 ce3dd93f30d9 mod_firewall: README: Note about marks applying to sessions, not JIDs Matthew Wild <mwild1@gmail.com> parents: 2111 diff changeset	701 Note: Marks apply to sessions, not JIDs. E.g. if marking in a rule that matches a stanza received
ce3dd93f30d9 mod_firewall: README: Note about marks applying to sessions, not JIDs Matthew Wild <mwild1@gmail.com> parents: 2111 diff changeset	702 over s2s, it is the s2s session that is marked.
ce3dd93f30d9 mod_firewall: README: Note about marks applying to sessions, not JIDs Matthew Wild <mwild1@gmail.com> parents: 2111 diff changeset	703
ce3dd93f30d9 mod_firewall: README: Note about marks applying to sessions, not JIDs Matthew Wild <mwild1@gmail.com> parents: 2111 diff changeset	704 It is possible to have multiple marks on an origin at any given time.
ce3dd93f30d9 mod_firewall: README: Note about marks applying to sessions, not JIDs Matthew Wild <mwild1@gmail.com> parents: 2111 diff changeset	705
1803 4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	706 ### Informational
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	707
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	708 Action Description
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	709 --------------- ------------------------------------------------------------------------------------------------------------------------
4d73a1a6ba68 Convert all wiki pages to Markdown Kim Alvefur <zash@zash.se> parents: 1782 diff changeset	710 `LOG=message` Logs the given message to Prosody's log file. Optionally prefix it with a log level in square brackets, e.g. `[debug]`
2093 7b9520479e99 mod_firewall: README: Document LOG's ability to take meta expressions Matthew Wild <mwild1@gmail.com> parents: 2092 diff changeset	711
4236 c316ad1087d4 mod_firewall: Some additional documentation improvements, particularly adding section links where needed Matthew Wild <mwild1@gmail.com> parents: 4235 diff changeset	712 You can include [expressions](#expressions) in log messages, using `$(...)` syntax. For example, to log the stanza that matched the rule,
c316ad1087d4 mod_firewall: Some additional documentation improvements, particularly adding section links where needed Matthew Wild <mwild1@gmail.com> parents: 4235 diff changeset	713 you can use `$(stanza)`, or to log just the top tag of the stanza, use `$(stanza:top_tag())`. To fetch the sender JID, use `$(stanza.attr.from)`.
2093 7b9520479e99 mod_firewall: README: Document LOG's ability to take meta expressions Matthew Wild <mwild1@gmail.com> parents: 2092 diff changeset	714
7b9520479e99 mod_firewall: README: Document LOG's ability to take meta expressions Matthew Wild <mwild1@gmail.com> parents: 2092 diff changeset	715 Example:
7b9520479e99 mod_firewall: README: Document LOG's ability to take meta expressions Matthew Wild <mwild1@gmail.com> parents: 2092 diff changeset	716
7b9520479e99 mod_firewall: README: Document LOG's ability to take meta expressions Matthew Wild <mwild1@gmail.com> parents: 2092 diff changeset	717 # Log all stanzas to user@example.com:
7b9520479e99 mod_firewall: README: Document LOG's ability to take meta expressions Matthew Wild <mwild1@gmail.com> parents: 2092 diff changeset	718 TO: user@example.com
7b9520479e99 mod_firewall: README: Document LOG's ability to take meta expressions Matthew Wild <mwild1@gmail.com> parents: 2092 diff changeset	719 LOG=[debug] User received: $(stanza)
7b9520479e99 mod_firewall: README: Document LOG's ability to take meta expressions Matthew Wild <mwild1@gmail.com> parents: 2092 diff changeset	720
2369 2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	721 More info about expressions can be found below.
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	722
2096 b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	723 Chains
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	724 ------
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	725
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	726 Rules are grouped into "chains", which are injected at particular points in Prosody's routing code.
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	727
2559 99b32f77f00d mod_firewall: Document PASS, RETURN and DEFAULT Matthew Wild <mwild1@gmail.com> parents: 2545 diff changeset	728 Available built-in chains are:
2096 b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	729
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	730 Chain Description
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	731 -------------- -------------------------------------------------------------------------------------------
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	732 deliver Applies to stanzas delivered to local recipients (regardless of the stanza's origin)
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	733 deliver_remote Applies to stanzas delivered to remote recipients (just before they leave the local server)
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	734 preroute Applies to incoming stanzas from local users, before any routing rules are applied
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	735
2111 4e434abaf8fc mod_firewall: README: Improve chain documentation Matthew Wild <mwild1@gmail.com> parents: 2110 diff changeset	736 A chain is begun by a line `::name` where 'name' is the name of the chain you want the following rules to be
4e434abaf8fc mod_firewall: README: Improve chain documentation Matthew Wild <mwild1@gmail.com> parents: 2110 diff changeset	737 inserted into. If no chain is specified, rules are put into the 'deliver' chain.
4e434abaf8fc mod_firewall: README: Improve chain documentation Matthew Wild <mwild1@gmail.com> parents: 2110 diff changeset	738
4965 d7684aa81d8f mod_firewall: README: Correct mention of 'JUMP_CHAIN' to 'JUMP CHAIN' Matthew Wild <mwild1@gmail.com> parents: 4583 diff changeset	739 It is possible to create custom chains (useful with the `JUMP CHAIN` action described below). User-created
2111 4e434abaf8fc mod_firewall: README: Improve chain documentation Matthew Wild <mwild1@gmail.com> parents: 2110 diff changeset	740 chains must begin with "user/", e.g. "user/spam_filtering".
2096 b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	741
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	742 Example of chain use:
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	743
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	744 # example.com's firewall script
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	745
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	746 # This line is optional, because 'deliver' is the default chain anyway:
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	747 ::deliver
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	748
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	749 # This rule matches any stanzas delivered to our local user bob:
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	750 TO: bob@example.com
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	751 DROP.
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	752
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	753 # Oops! This rule will never match, because alice is not a local user,
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	754 # and only stanzas to local users go through the 'deliver' chain:
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	755 TO: alice@remote.example.com
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	756 DROP.
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	757
2104 384fb28452b9 mod_firewall: README: Improve chain usage example comments Matthew Wild <mwild1@gmail.com> parents: 2103 diff changeset	758 # Create a 'preroute' chain of rules (matched for incoming stanzas from local clients):
2096 b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	759 ::preroute
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	760 # These rules are matched for outgoing stanzas from local clients
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	761
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	762 # This will match any stanzas sent to alice from a local user:
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	763 TO: alice@remote.example.com
b75d29a162cd mod_firewall: README: Document chains Matthew Wild <mwild1@gmail.com> parents: 2095 diff changeset	764 DROP.
2105 f2d5aa789646 mod_firewall: README: Document JUMP_CHAIN Matthew Wild <mwild1@gmail.com> parents: 2104 diff changeset	765
f2d5aa789646 mod_firewall: README: Document JUMP_CHAIN Matthew Wild <mwild1@gmail.com> parents: 2104 diff changeset	766 Action Description
f2d5aa789646 mod_firewall: README: Document JUMP_CHAIN Matthew Wild <mwild1@gmail.com> parents: 2104 diff changeset	767 ------------------------ ------------------------------------------------------------------------
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	768 `JUMP CHAIN=name` Switches chains, and passes the stanza through the rules in chain 'name'. If the new chain causes the stanza to be dropped/redirected, the current chain halts further processing.
2559 99b32f77f00d mod_firewall: Document PASS, RETURN and DEFAULT Matthew Wild <mwild1@gmail.com> parents: 2545 diff changeset	769 `RETURN.` Stops executing the current chain and returns to the parent chain. For built-in chains, equivalent to PASS. RETURN is implicit at the end of every chain.
2369 2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	770
2389 a753b21968c5 mod_firewall: README: Clarify that it's possible to jump to chains defined outside of the current file Matthew Wild <mwild1@gmail.com> parents: 2388 diff changeset	771 It is possible to jump to chains defined by other scripts and modules.
a753b21968c5 mod_firewall: README: Clarify that it's possible to jump to chains defined outside of the current file Matthew Wild <mwild1@gmail.com> parents: 2388 diff changeset	772
2369 2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	773 Expressions
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	774 -----------
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	775
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	776 Some conditions and actions in rules support "expressions" in their parameters (their documentation will indicate if this is the case). Most parameters
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	777 are static once the firewall script is loaded and compiled internally, however parameters that allow expressions can be dynamically calculated when a
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	778 rule is being run.
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	779
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	780 There are two kinds of expression that you can use: stanza expressions, and code expressions.
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	781
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	782 ### Stanza expressions
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	783
2369 2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	784 Stanza expressions are of the form `$<...>`, where `...` is a stanza path. For syntax of stanza paths, see the documentation for the 'INSPECT' condition
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	785 above.
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	786
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	787 Example:
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	788
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	789 LOG=Matched a stanza from $<@from> to $<@to>
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	790
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	791 There are built in functions which can be applied to the output of a stanza expression, by appending the pipe ('\|') operator, followed by the function
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	792 name. These functions are:
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	793
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	794 Function Description
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	795 ------------ ---------------------------------------
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	796 bare Given a JID, strip any resource
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	797 node Return the node ('user part') of a JID
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	798 host Return the host ('domain') part of a JID
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	799 resource Return the resource part of a JID
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	800
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	801 For example, to apply a rate limit to stanzas per sender domain:
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	802
4072 2dcbc01c9931 mod_firewall: Fix example in README to use \|host (thanks DebXWoody) Matthew Wild <mwild1@gmail.com> parents: 3197 diff changeset	803 LIMIT normal on $<@from\|host>
2540 d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	804
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	805 If the path does not match (e.g. the element isn't found, or the attribute doesn't exist) or any of the functions fail to produce an output (e.g. an invalid
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	806 JID was passed to a function that only handles valid JIDs) the expression will return the text `<undefined>`. You can override this by ending the expression
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	807 with a double pipe ('\|\|') followed by a quoted string to use as a default instead. E.g. to default to the string "normal" when there is no 'type' attribute:
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	808
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	809 LOG=Stanza type is $<@type\|\|"normal">
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	810
d637bc0ac604 mod_firewall: Update README for latest changes Matthew Wild <mwild1@gmail.com> parents: 2410 diff changeset	811 ### Code expressions
2369 2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	812
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	813 Code expressions use `$(...)` syntax. Code expressions are powerful, and allow unconstrained access to Prosody's internal environment. Therefore
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	814 code expressions are typically for advanced use-cases only. You may want to refer to Prosody's [developer documentation](https://prosody.im/doc/developers)
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	815 for more information. In particular, within code expressions you may access the 'session' object, which is the session object of the origin of the stanza,
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	816 and the 'stanza' object, which is the stanza being considered within the current rule. Whatever value the expression returns will be converted to a string.
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	817
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	818 Example to limit stanzas per session type:
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	819
2fb11d34087e mod_firewall: README: Update for LIMIT 'on' and document expression syntax Matthew Wild <mwild1@gmail.com> parents: 2360 diff changeset	820 LIMIT: normal on $(session.type)

Mercurial > prosody-modules

annotate mod_firewall/README.markdown @ 5799:c75328aeaba3