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mod_firewall/conditions.lib.lua

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mod_firewall/conditions.lib.lua @ 5064:7d33178c79f2

mod_sasl2: Add some brief dev notes about events to the README
author Matthew Wild <mwild1@gmail.com>
date Thu, 13 Oct 2022 22:48:57 +0100
parent 5002:84997bc3f92e
child 5530:8226ac08484e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 --luacheck: globals meta idsafe
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2 local condition_handlers = {};
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3
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4 local jid = require "util.jid";
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5 local unpack = table.unpack or unpack;
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6
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7 -- Helper to convert user-input strings (yes/true//no/false) to a bool
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8 local function string_to_boolean(s)
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9 s = s:lower();
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10 return s == "yes" or s == "true";
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11 end
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12
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13 -- Return a code string for a condition that checks whether the contents
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14 -- of variable with the name 'name' matches any of the values in the
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15 -- comma/space/pipe delimited list 'values'.
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16 local function compile_comparison_list(name, values)
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17 local conditions = {};
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18 for value in values:gmatch("[^%s,|]+") do
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19 table.insert(conditions, ("%s == %q"):format(name, value));
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20 end
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21 return table.concat(conditions, " or ");
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22 end
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23
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24 function condition_handlers.KIND(kind)
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25 assert(kind, "Expected stanza kind to match against");
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26 return compile_comparison_list("name", kind), { "name" };
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27 end
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28
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29 local wildcard_equivs = { ["*"] = ".*", ["?"] = "." };
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30
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31 local function compile_jid_match_part(part, match)
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32 if not match then
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33 return part.." == nil";
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34 end
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35 local pattern = match:match("^<(.*)>$");
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36 if pattern then
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37 if pattern == "*" then
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38 return part;
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39 end
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40 if pattern:find("^<.*>$") then
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41 pattern = pattern:match("^<(.*)>$");
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42 else
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43 pattern = pattern:gsub("%p", "%%%0"):gsub("%%(%p)", wildcard_equivs);
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44 end
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45 return ("(%s and %s:find(%q))"):format(part, part, "^"..pattern.."$");
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46 else
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47 return ("%s == %q"):format(part, match);
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48 end
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49 end
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50
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51 local function compile_jid_match(which, match_jid)
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52 local match_node, match_host, match_resource = jid.split(match_jid);
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53 local conditions = {};
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54 conditions[#conditions+1] = compile_jid_match_part(which.."_node", match_node);
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55 conditions[#conditions+1] = compile_jid_match_part(which.."_host", match_host);
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56 if match_resource then
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57 conditions[#conditions+1] = compile_jid_match_part(which.."_resource", match_resource);
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58 end
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59 return table.concat(conditions, " and ");
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60 end
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61
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62 function condition_handlers.TO(to)
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63 return compile_jid_match("to", to), { "split_to" };
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64 end
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65
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66 function condition_handlers.FROM(from)
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67 return compile_jid_match("from", from), { "split_from" };
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68 end
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69
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70 function condition_handlers.FROM_EXACTLY(from)
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71 local metadeps = {};
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72 return ("from == %s"):format(metaq(from, metadeps)), { "from", unpack(metadeps) };
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73 end
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74
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75 function condition_handlers.TO_EXACTLY(to)
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76 local metadeps = {};
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77 return ("to == %s"):format(metaq(to, metadeps)), { "to", unpack(metadeps) };
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78 end
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79
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80 function condition_handlers.TO_SELF()
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81 -- Intentionally not using 'to' here, as that defaults to bare JID when nil
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82 return ("stanza.attr.to == nil");
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83 end
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84
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85 function condition_handlers.TYPE(type)
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86 assert(type, "Expected 'type' value to match against");
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87 return compile_comparison_list("(type or (name == 'message' and 'normal') or (name == 'presence' and 'available'))", type), { "type", "name" };
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88 end
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90 local function zone_check(zone, which)
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91 local zone_var = zone;
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92 if zone == "$local" then zone_var = "_local" end
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93 local which_not = which == "from" and "to" or "from";
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94 return ("(zone_%s[%s_host] or zone_%s[%s] or zone_%s[bare_%s]) "
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95 .."and not(zone_%s[%s_host] or zone_%s[%s] or zone_%s[bare_%s])"
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96 )
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97 :format(zone_var, which, zone_var, which, zone_var, which,
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98 zone_var, which_not, zone_var, which_not, zone_var, which_not), {
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99 "split_to", "split_from", "bare_to", "bare_from", "zone:"..zone
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100 };
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101 end
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102
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103 function condition_handlers.ENTERING(zone)
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104 return zone_check(zone, "to");
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105 end
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106
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107 function condition_handlers.LEAVING(zone)
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108 return zone_check(zone, "from");
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109 end
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110
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111 -- IN ROSTER? (parameter is deprecated)
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112 function condition_handlers.IN_ROSTER(yes_no)
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113 local in_roster_requirement = string_to_boolean(yes_no or "yes"); -- COMPAT w/ older scripts
2342
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Matthew Wild <mwild1@gmail.com>
parents: 2128
diff changeset
114 return "not "..(in_roster_requirement and "not" or "").." roster_entry", { "roster_entry" };
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: 2128
diff changeset
115 end
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: 2128
diff changeset
116
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: 2128
diff changeset
117 function condition_handlers.IN_ROSTER_GROUP(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: 2128
diff changeset
118 return ("not not (roster_entry and roster_entry.groups[%q])"):format(group), { "roster_entry" };
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: 2128
diff changeset
119 end
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: 2128
diff changeset
120
2403
f96bdfd81eba mod_firewall: SUBSCRIBED - condition that is true if the receiver of a stanza is subscribed to the sender
Kim Alvefur <zash@zash.se>
parents: 2386
diff changeset
121 function condition_handlers.SUBSCRIBED()
2857
ff1666716d10 mod_firewall: Make SUBSCRIBED match for stanzas sent to self (fixes #1052)
Kim Alvefur <zash@zash.se>
parents: 2618
diff changeset
122 return "(bare_to == bare_from or to_node and rostermanager.is_contact_subscribed(to_node, to_host, bare_from))",
ff1666716d10 mod_firewall: Make SUBSCRIBED match for stanzas sent to self (fixes #1052)
Kim Alvefur <zash@zash.se>
parents: 2618
diff changeset
123 { "rostermanager", "split_to", "bare_to", "bare_from" };
2403
f96bdfd81eba mod_firewall: SUBSCRIBED - condition that is true if the receiver of a stanza is subscribed to the sender
Kim Alvefur <zash@zash.se>
parents: 2386
diff changeset
124 end
f96bdfd81eba mod_firewall: SUBSCRIBED - condition that is true if the receiver of a stanza is subscribed to the sender
Kim Alvefur <zash@zash.se>
parents: 2386
diff changeset
125
2916
b1cdcbcd1c90 mod_firewall: Add PENDING SUBSCRIPTION FROM SENDER? condition
Matthew Wild <mwild1@gmail.com>
parents: 2894
diff changeset
126 function condition_handlers.PENDING_SUBSCRIPTION_FROM_SENDER()
b1cdcbcd1c90 mod_firewall: Add PENDING SUBSCRIPTION FROM SENDER? condition
Matthew Wild <mwild1@gmail.com>
parents: 2894
diff changeset
127 return "(bare_to == bare_from or to_node and rostermanager.is_contact_pending_in(to_node, to_host, bare_from))",
3982
ab065ff4628b mod_firewall: Remove trailing whitespace
Kim Alvefur <zash@zash.se>
parents: 3973
diff changeset
128 { "rostermanager", "split_to", "bare_to", "bare_from" };
2916
b1cdcbcd1c90 mod_firewall: Add PENDING SUBSCRIPTION FROM SENDER? condition
Matthew Wild <mwild1@gmail.com>
parents: 2894
diff changeset
129 end
b1cdcbcd1c90 mod_firewall: Add PENDING SUBSCRIPTION FROM SENDER? condition
Matthew Wild <mwild1@gmail.com>
parents: 2894
diff changeset
130
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
131 function condition_handlers.PAYLOAD(payload_ns)
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
132 return ("stanza:get_child(nil, %q)"):format(payload_ns);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
133 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
134
954
bec5b6e2eab8 mod_firewall: Add INSPECT conditional, for deeper inspection of stanzas
Kim Alvefur <zash@zash.se>
parents: 947
diff changeset
135 function condition_handlers.INSPECT(path)
bec5b6e2eab8 mod_firewall: Add INSPECT conditional, for deeper inspection of stanzas
Kim Alvefur <zash@zash.se>
parents: 947
diff changeset
136 if path:find("=") then
2386
00eed68f63bf mod_firewall: INSPECT: support for literal substring search and expressions
Matthew Wild <mwild1@gmail.com>
parents: 2363
diff changeset
137 local query, match_type, value = path:match("(.-)([~/$]*)=(.*)");
2362
c065ab67d807 mod_firewall: INSPECT: Emit compilation error when the given stanza path is used for comparison but doesn't return a string
Matthew Wild <mwild1@gmail.com>
parents: 2342
diff changeset
138 if not(query:match("#$") or query:match("@[^/]+")) then
c065ab67d807 mod_firewall: INSPECT: Emit compilation error when the given stanza path is used for comparison but doesn't return a string
Matthew Wild <mwild1@gmail.com>
parents: 2342
diff changeset
139 error("Stanza path does not return a string (append # for text content or @name for value of named attribute)", 0);
c065ab67d807 mod_firewall: INSPECT: Emit compilation error when the given stanza path is used for comparison but doesn't return a string
Matthew Wild <mwild1@gmail.com>
parents: 2342
diff changeset
140 end
2519
d4bc434a60a4 mod_firewall: Update functions that use meta() to allow functions with deps inside expressions
Matthew Wild <mwild1@gmail.com>
parents: 2465
diff changeset
141 local meta_deps = {};
2386
00eed68f63bf mod_firewall: INSPECT: support for literal substring search and expressions
Matthew Wild <mwild1@gmail.com>
parents: 2363
diff changeset
142 local quoted_value = ("%q"):format(value);
00eed68f63bf mod_firewall: INSPECT: support for literal substring search and expressions
Matthew Wild <mwild1@gmail.com>
parents: 2363
diff changeset
143 if match_type:find("$", 1, true) then
00eed68f63bf mod_firewall: INSPECT: support for literal substring search and expressions
Matthew Wild <mwild1@gmail.com>
parents: 2363
diff changeset
144 match_type = match_type:gsub("%$", "");
2519
d4bc434a60a4 mod_firewall: Update functions that use meta() to allow functions with deps inside expressions
Matthew Wild <mwild1@gmail.com>
parents: 2465
diff changeset
145 quoted_value = meta(quoted_value, meta_deps);
2386
00eed68f63bf mod_firewall: INSPECT: support for literal substring search and expressions
Matthew Wild <mwild1@gmail.com>
parents: 2363
diff changeset
146 end
00eed68f63bf mod_firewall: INSPECT: support for literal substring search and expressions
Matthew Wild <mwild1@gmail.com>
parents: 2363
diff changeset
147 if match_type == "~" then -- Lua pattern match
2519
d4bc434a60a4 mod_firewall: Update functions that use meta() to allow functions with deps inside expressions
Matthew Wild <mwild1@gmail.com>
parents: 2465
diff changeset
148 return ("(stanza:find(%q) or ''):match(%s)"):format(query, quoted_value), meta_deps;
2386
00eed68f63bf mod_firewall: INSPECT: support for literal substring search and expressions
Matthew Wild <mwild1@gmail.com>
parents: 2363
diff changeset
149 elseif match_type == "/" then -- find literal substring
2519
d4bc434a60a4 mod_firewall: Update functions that use meta() to allow functions with deps inside expressions
Matthew Wild <mwild1@gmail.com>
parents: 2465
diff changeset
150 return ("(stanza:find(%q) or ''):find(%s, 1, true)"):format(query, quoted_value), meta_deps;
2386
00eed68f63bf mod_firewall: INSPECT: support for literal substring search and expressions
Matthew Wild <mwild1@gmail.com>
parents: 2363
diff changeset
151 elseif match_type == "" then -- exact match
2519
d4bc434a60a4 mod_firewall: Update functions that use meta() to allow functions with deps inside expressions
Matthew Wild <mwild1@gmail.com>
parents: 2465
diff changeset
152 return ("stanza:find(%q) == %s"):format(query, quoted_value), meta_deps;
2109
9db4113d0cb5 mod_firewall: INSPECT: Support for pattern matches (confusingly using ~= instead of =)
Matthew Wild <mwild1@gmail.com>
parents: 2107
diff changeset
153 else
2386
00eed68f63bf mod_firewall: INSPECT: support for literal substring search and expressions
Matthew Wild <mwild1@gmail.com>
parents: 2363
diff changeset
154 error("Unrecognised comparison '"..match_type.."='", 0);
2109
9db4113d0cb5 mod_firewall: INSPECT: Support for pattern matches (confusingly using ~= instead of =)
Matthew Wild <mwild1@gmail.com>
parents: 2107
diff changeset
155 end
954
bec5b6e2eab8 mod_firewall: Add INSPECT conditional, for deeper inspection of stanzas
Kim Alvefur <zash@zash.se>
parents: 947
diff changeset
156 end
bec5b6e2eab8 mod_firewall: Add INSPECT conditional, for deeper inspection of stanzas
Kim Alvefur <zash@zash.se>
parents: 947
diff changeset
157 return ("stanza:find(%q)"):format(path);
bec5b6e2eab8 mod_firewall: Add INSPECT conditional, for deeper inspection of stanzas
Kim Alvefur <zash@zash.se>
parents: 947
diff changeset
158 end
bec5b6e2eab8 mod_firewall: Add INSPECT conditional, for deeper inspection of stanzas
Kim Alvefur <zash@zash.se>
parents: 947
diff changeset
159
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
160 function condition_handlers.FROM_GROUP(group_name)
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
161 return ("group_contains(%q, bare_from)"):format(group_name), { "group_contains", "bare_from" };
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
162 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
163
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
164 function condition_handlers.TO_GROUP(group_name)
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
165 return ("group_contains(%q, bare_to)"):format(group_name), { "group_contains", "bare_to" };
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
166 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
167
2594
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition
Matthew Wild <mwild1@gmail.com>
parents: 2584
diff changeset
168 function condition_handlers.CROSSING_GROUPS(group_names)
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition
Matthew Wild <mwild1@gmail.com>
parents: 2584
diff changeset
169 local code = {};
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition
Matthew Wild <mwild1@gmail.com>
parents: 2584
diff changeset
170 for group_name in group_names:gmatch("([^, ][^,]+)") do
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition
Matthew Wild <mwild1@gmail.com>
parents: 2584
diff changeset
171 group_name = group_name:match("^%s*(.-)%s*$"); -- Trim leading/trailing whitespace
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition
Matthew Wild <mwild1@gmail.com>
parents: 2584
diff changeset
172 -- Just check that's it is crossing from outside group to inside group
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition
Matthew Wild <mwild1@gmail.com>
parents: 2584
diff changeset
173 table.insert(code, ("(group_contains(%q, bare_to) and group_contains(%q, bare_from))"):format(group_name, group_name))
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition
Matthew Wild <mwild1@gmail.com>
parents: 2584
diff changeset
174 end
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition
Matthew Wild <mwild1@gmail.com>
parents: 2584
diff changeset
175 return "not "..table.concat(code, " or "), { "group_contains", "bare_to", "bare_from" };
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition
Matthew Wild <mwild1@gmail.com>
parents: 2584
diff changeset
176 end
1e1c929c1aa5 mod_firewall: Add and document CROSSING GROUPS condition
Matthew Wild <mwild1@gmail.com>
parents: 2584
diff changeset
177
5002
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
178 -- COMPAT w/0.12: Deprecated
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
179 function condition_handlers.FROM_ADMIN_OF(host)
2577
00cef058df8d mod_firewall: TO/FROM ADMIN OF: Fix string quoting
Matthew Wild <mwild1@gmail.com>
parents: 2575
diff changeset
180 return ("is_admin(bare_from, %s)"):format(host ~= "*" and metaq(host) or nil), { "is_admin", "bare_from" };
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
181 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
182
5002
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
183 -- COMPAT w/0.12: Deprecated
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
184 function condition_handlers.TO_ADMIN_OF(host)
2577
00cef058df8d mod_firewall: TO/FROM ADMIN OF: Fix string quoting
Matthew Wild <mwild1@gmail.com>
parents: 2575
diff changeset
185 return ("is_admin(bare_to, %s)"):format(host ~= "*" and metaq(host) or nil), { "is_admin", "bare_to" };
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
186 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
187
5002
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
188 -- COMPAT w/0.12: Deprecated
2553
7ed2a66bfabd mod_firewall: Add TO/FROM ADMIN
Matthew Wild <mwild1@gmail.com>
parents: 2552
diff changeset
189 function condition_handlers.FROM_ADMIN()
2575
214b49d05ea1 mod_firewall: Fix TO/FROM ADMIN to use current (module) host
Matthew Wild <mwild1@gmail.com>
parents: 2564
diff changeset
190 return ("is_admin(bare_from, current_host)"), { "is_admin", "bare_from", "current_host" };
2553
7ed2a66bfabd mod_firewall: Add TO/FROM ADMIN
Matthew Wild <mwild1@gmail.com>
parents: 2552
diff changeset
191 end
7ed2a66bfabd mod_firewall: Add TO/FROM ADMIN
Matthew Wild <mwild1@gmail.com>
parents: 2552
diff changeset
192
5002
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
193 -- COMPAT w/0.12: Deprecated
2553
7ed2a66bfabd mod_firewall: Add TO/FROM ADMIN
Matthew Wild <mwild1@gmail.com>
parents: 2552
diff changeset
194 function condition_handlers.TO_ADMIN()
2575
214b49d05ea1 mod_firewall: Fix TO/FROM ADMIN to use current (module) host
Matthew Wild <mwild1@gmail.com>
parents: 2564
diff changeset
195 return ("is_admin(bare_to, current_host)"), { "is_admin", "bare_to", "current_host" };
2553
7ed2a66bfabd mod_firewall: Add TO/FROM ADMIN
Matthew Wild <mwild1@gmail.com>
parents: 2552
diff changeset
196 end
7ed2a66bfabd mod_firewall: Add TO/FROM ADMIN
Matthew Wild <mwild1@gmail.com>
parents: 2552
diff changeset
197
5002
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
198 -- MAY: permission_to_check
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
199 function condition_handlers.MAY(permission_to_check)
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
200 return ("module:may(%q, event)"):format(permission_to_check);
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
201 end
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
202
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
203 function condition_handlers.TO_ROLE(role_name)
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
204 return ("get_jid_role(bare_to, current_host) == %q"):format(role_name), { "get_jid_role", "current_host", "bare_to" };
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
205 end
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
206
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
207 function condition_handlers.FROM_ROLE(role_name)
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
208 return ("get_jid_role(bare_from, current_host) == %q"):format(role_name), { "get_jid_role", "current_host", "bare_from" };
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
209 end
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
210
968
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
211 local day_numbers = { sun = 0, mon = 2, tue = 3, wed = 4, thu = 5, fri = 6, sat = 7 };
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
212
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
213 local function current_time_check(op, hour, minute)
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
214 hour, minute = tonumber(hour), tonumber(minute);
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
215 local adj_op = op == "<" and "<" or ">="; -- Start time inclusive, end time exclusive
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
216 if minute == 0 then
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
217 return "(current_hour"..adj_op..hour..")";
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
218 else
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
219 return "((current_hour"..op..hour..") or (current_hour == "..hour.." and current_minute"..adj_op..minute.."))";
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
220 end
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
221 end
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
222
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
223 local function resolve_day_number(day_name)
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
224 return assert(day_numbers[day_name:sub(1,3):lower()], "Unknown day name: "..day_name);
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
225 end
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
226
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
227 function condition_handlers.DAY(days)
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
228 local conditions = {};
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
229 for day_range in days:gmatch("[^,]+") do
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
230 local day_start, day_end = day_range:match("(%a+)%s*%-%s*(%a+)");
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
231 if day_start and day_end then
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
232 local day_start_num, day_end_num = resolve_day_number(day_start), resolve_day_number(day_end);
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
233 local op = "and";
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
234 if day_end_num < day_start_num then
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
235 op = "or";
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
236 end
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
237 table.insert(conditions, ("current_day >= %d %s current_day <= %d"):format(day_start_num, op, day_end_num));
2070
2356114ff505 mod_firewall: Optimize string match operations, string.find is faster than .match since no string is returned
Kim Alvefur <zash@zash.se>
parents: 2036
diff changeset
238 elseif day_range:find("%a") then
968
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
239 local day = resolve_day_number(day_range:match("%a+"));
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
240 table.insert(conditions, "current_day == "..day);
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
241 else
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
242 error("Unable to parse day/day range: "..day_range);
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
243 end
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
244 end
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
245 assert(#conditions>0, "Expected a list of days or day ranges");
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
246 return "("..table.concat(conditions, ") or (")..")", { "time:day" };
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
247 end
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
248
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
249 function condition_handlers.TIME(ranges)
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
250 local conditions = {};
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
251 for range in ranges:gmatch("([^,]+)") do
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
252 local clause = {};
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
253 range = range:lower()
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
254 :gsub("(%d+):?(%d*) *am", function (h, m) return tostring(tonumber(h)%12)..":"..(tonumber(m) or "00"); end)
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
255 :gsub("(%d+):?(%d*) *pm", function (h, m) return tostring(tonumber(h)%12+12)..":"..(tonumber(m) or "00"); end);
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
256 local start_hour, start_minute = range:match("(%d+):(%d+) *%-");
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
257 local end_hour, end_minute = range:match("%- *(%d+):(%d+)");
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
258 local op = tonumber(start_hour) > tonumber(end_hour) and " or " or " and ";
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
259 if start_hour and end_hour then
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
260 table.insert(clause, current_time_check(">", start_hour, start_minute));
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
261 table.insert(clause, current_time_check("<", end_hour, end_minute));
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
262 end
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
263 if #clause == 0 then
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
264 error("Unable to parse time range: "..range);
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
265 end
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
266 table.insert(conditions, "("..table.concat(clause, " "..op.." ")..")");
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
267 end
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
268 return table.concat(conditions, " or "), { "time:hour,min" };
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
269 end
f3b0ddeebd9d mod_firewall/conditions: Add DAY and TIME conditions
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
270
2128
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2127
diff changeset
271 function condition_handlers.LIMIT(spec)
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2127
diff changeset
272 local name, param = spec:match("^(%w+) on (.+)$");
2519
d4bc434a60a4 mod_firewall: Update functions that use meta() to allow functions with deps inside expressions
Matthew Wild <mwild1@gmail.com>
parents: 2465
diff changeset
273 local meta_deps = {};
2128
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2127
diff changeset
274
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2127
diff changeset
275 if not name then
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2127
diff changeset
276 name = spec:match("^%w+$");
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2127
diff changeset
277 if not name then
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2127
diff changeset
278 error("Unable to parse LIMIT specification");
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2127
diff changeset
279 end
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2127
diff changeset
280 else
2519
d4bc434a60a4 mod_firewall: Update functions that use meta() to allow functions with deps inside expressions
Matthew Wild <mwild1@gmail.com>
parents: 2465
diff changeset
281 param = meta(("%q"):format(param), meta_deps);
2128
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2127
diff changeset
282 end
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2127
diff changeset
283
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2127
diff changeset
284 if not param then
2519
d4bc434a60a4 mod_firewall: Update functions that use meta() to allow functions with deps inside expressions
Matthew Wild <mwild1@gmail.com>
parents: 2465
diff changeset
285 return ("not global_throttle_%s:poll(1)"):format(name), { "globalthrottle:"..name, unpack(meta_deps) };
2128
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2127
diff changeset
286 end
2859
22e11645a895 mod_firewall: Trim trailing whitespace [luacheck]
Kim Alvefur <zash@zash.se>
parents: 2857
diff changeset
287 return ("not multi_throttle_%s:poll_on(%s, 1)"):format(name, param), { "multithrottle:"..name, unpack(meta_deps) };
971
53e158e44a44 mod_firewall: Add rate limiting capabilities, and keep zones and throttle objects in shared tables
Matthew Wild <mwild1@gmail.com>
parents: 968
diff changeset
288 end
53e158e44a44 mod_firewall: Add rate limiting capabilities, and keep zones and throttle objects in shared tables
Matthew Wild <mwild1@gmail.com>
parents: 968
diff changeset
289
2107
f445f43b9ba1 mod_firewall: Add support for session marking (MARK_ORIGIN, UNMARK_ORIGIN, ORIGIN_MARKED)
Matthew Wild <mwild1@gmail.com>
parents: 2075
diff changeset
290 function condition_handlers.ORIGIN_MARKED(name_and_time)
2127
59023dffbdd4 mod_firewall: Allow underscore in mark names (thanks Ge0rG)
Matthew Wild <mwild1@gmail.com>
parents: 2125
diff changeset
291 local name, time = name_and_time:match("^%s*([%w_]+)%s+%(([^)]+)s%)%s*$");
2107
f445f43b9ba1 mod_firewall: Add support for session marking (MARK_ORIGIN, UNMARK_ORIGIN, ORIGIN_MARKED)
Matthew Wild <mwild1@gmail.com>
parents: 2075
diff changeset
292 if not name then
2127
59023dffbdd4 mod_firewall: Allow underscore in mark names (thanks Ge0rG)
Matthew Wild <mwild1@gmail.com>
parents: 2125
diff changeset
293 name = name_and_time:match("^%s*([%w_]+)%s*$");
2107
f445f43b9ba1 mod_firewall: Add support for session marking (MARK_ORIGIN, UNMARK_ORIGIN, ORIGIN_MARKED)
Matthew Wild <mwild1@gmail.com>
parents: 2075
diff changeset
294 end
f445f43b9ba1 mod_firewall: Add support for session marking (MARK_ORIGIN, UNMARK_ORIGIN, ORIGIN_MARKED)
Matthew Wild <mwild1@gmail.com>
parents: 2075
diff changeset
295 if not name then
f445f43b9ba1 mod_firewall: Add support for session marking (MARK_ORIGIN, UNMARK_ORIGIN, ORIGIN_MARKED)
Matthew Wild <mwild1@gmail.com>
parents: 2075
diff changeset
296 error("Error parsing mark name, see documentation for usage examples");
f445f43b9ba1 mod_firewall: Add support for session marking (MARK_ORIGIN, UNMARK_ORIGIN, ORIGIN_MARKED)
Matthew Wild <mwild1@gmail.com>
parents: 2075
diff changeset
297 end
f445f43b9ba1 mod_firewall: Add support for session marking (MARK_ORIGIN, UNMARK_ORIGIN, ORIGIN_MARKED)
Matthew Wild <mwild1@gmail.com>
parents: 2075
diff changeset
298 if time then
2116
2bb42ba342f3 mod_firewall: Fix usage of incorrect variable current_time in ORIGIN_MARKED condition (thanks Ge0rG)
Matthew Wild <mwild1@gmail.com>
parents: 2109
diff changeset
299 return ("(current_timestamp - (session.firewall_marked_%s or 0)) < %d"):format(idsafe(name), tonumber(time)), { "timestamp" };
2107
f445f43b9ba1 mod_firewall: Add support for session marking (MARK_ORIGIN, UNMARK_ORIGIN, ORIGIN_MARKED)
Matthew Wild <mwild1@gmail.com>
parents: 2075
diff changeset
300 end
f445f43b9ba1 mod_firewall: Add support for session marking (MARK_ORIGIN, UNMARK_ORIGIN, ORIGIN_MARKED)
Matthew Wild <mwild1@gmail.com>
parents: 2075
diff changeset
301 return ("not not session.firewall_marked_"..idsafe(name));
f445f43b9ba1 mod_firewall: Add support for session marking (MARK_ORIGIN, UNMARK_ORIGIN, ORIGIN_MARKED)
Matthew Wild <mwild1@gmail.com>
parents: 2075
diff changeset
302 end
f445f43b9ba1 mod_firewall: Add support for session marking (MARK_ORIGIN, UNMARK_ORIGIN, ORIGIN_MARKED)
Matthew Wild <mwild1@gmail.com>
parents: 2075
diff changeset
303
2894
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2882
diff changeset
304 function condition_handlers.USER_MARKED(name_and_time)
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2882
diff changeset
305 local name, time = name_and_time:match("^%s*([%w_]+)%s+%(([^)]+)s%)%s*$");
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2882
diff changeset
306 if not name then
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2882
diff changeset
307 name = name_and_time:match("^%s*([%w_]+)%s*$");
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2882
diff changeset
308 end
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2882
diff changeset
309 if not name then
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2882
diff changeset
310 error("Error parsing mark name, see documentation for usage examples");
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2882
diff changeset
311 end
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2882
diff changeset
312 if time then
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2882
diff changeset
313 return ("(current_timestamp - (session.firewall_marks and session.firewall_marks.%s or 0)) < %d"):format(idsafe(name), tonumber(time)), { "timestamp" };
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2882
diff changeset
314 end
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2882
diff changeset
315 return ("not not (session.firewall_marks and session.firewall_marks."..idsafe(name)..")");
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2882
diff changeset
316 end
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2882
diff changeset
317
2554
19bb4606013f mod_firewall: Fix everything wrong with SENT_DIRECTED_PRESENCE_TO_SENDER
Matthew Wild <mwild1@gmail.com>
parents: 2553
diff changeset
318 function condition_handlers.SENT_DIRECTED_PRESENCE_TO_SENDER()
2882
6f289283feb1 mod_firewall: Prevent traceback if no directed presence has been sent (fixes #1081)
Kim Alvefur <zash@zash.se>
parents: 2859
diff changeset
319 return "not not (session.directed and session.directed[from])", { "from" };
2529
3fe4ca2b55c2 mod_firewall: Add 'SENT DIRECTED PRESENCE TO SENDER?'
Matthew Wild <mwild1@gmail.com>
parents: 2528
diff changeset
320 end
3fe4ca2b55c2 mod_firewall: Add 'SENT DIRECTED PRESENCE TO SENDER?'
Matthew Wild <mwild1@gmail.com>
parents: 2528
diff changeset
321
2618
c6652d055ba3 mod_firewall: Add some more comments
Matthew Wild <mwild1@gmail.com>
parents: 2594
diff changeset
322 -- TO FULL JID?
2555
a9eb4d5566f3 mod_firewall: Add TO FULL JID
Matthew Wild <mwild1@gmail.com>
parents: 2554
diff changeset
323 function condition_handlers.TO_FULL_JID()
4608
4e8fa75cc678 mod_firewall: Remove reliance on full_sessions being a global
Kim Alvefur <zash@zash.se>
parents: 3982
diff changeset
324 return "not not full_sessions[to]", { "to", "full_sessions" };
2555
a9eb4d5566f3 mod_firewall: Add TO FULL JID
Matthew Wild <mwild1@gmail.com>
parents: 2554
diff changeset
325 end
a9eb4d5566f3 mod_firewall: Add TO FULL JID
Matthew Wild <mwild1@gmail.com>
parents: 2554
diff changeset
326
2520
c6fd8975704b mod_firewall: Initial support for lists, in-memory and HTTP
Matthew Wild <mwild1@gmail.com>
parents: 2519
diff changeset
327 -- CHECK LIST: spammers contains $<@from>
c6fd8975704b mod_firewall: Initial support for lists, in-memory and HTTP
Matthew Wild <mwild1@gmail.com>
parents: 2519
diff changeset
328 function condition_handlers.CHECK_LIST(list_condition)
c6fd8975704b mod_firewall: Initial support for lists, in-memory and HTTP
Matthew Wild <mwild1@gmail.com>
parents: 2519
diff changeset
329 local list_name, expr = list_condition:match("(%S+) contains (.+)$");
2521
66b81e144ded mod_firewall: Fix CHECK LIST syntax check
Matthew Wild <mwild1@gmail.com>
parents: 2520
diff changeset
330 if not (list_name and expr) then
2520
c6fd8975704b mod_firewall: Initial support for lists, in-memory and HTTP
Matthew Wild <mwild1@gmail.com>
parents: 2519
diff changeset
331 error("Error parsing list check, syntax: LISTNAME contains EXPRESSION");
c6fd8975704b mod_firewall: Initial support for lists, in-memory and HTTP
Matthew Wild <mwild1@gmail.com>
parents: 2519
diff changeset
332 end
c6fd8975704b mod_firewall: Initial support for lists, in-memory and HTTP
Matthew Wild <mwild1@gmail.com>
parents: 2519
diff changeset
333 local meta_deps = {};
c6fd8975704b mod_firewall: Initial support for lists, in-memory and HTTP
Matthew Wild <mwild1@gmail.com>
parents: 2519
diff changeset
334 expr = meta(("%q"):format(expr), meta_deps);
c6fd8975704b mod_firewall: Initial support for lists, in-memory and HTTP
Matthew Wild <mwild1@gmail.com>
parents: 2519
diff changeset
335 return ("list_%s:contains(%s) == true"):format(list_name, expr), { "list:"..list_name, unpack(meta_deps) };
c6fd8975704b mod_firewall: Initial support for lists, in-memory and HTTP
Matthew Wild <mwild1@gmail.com>
parents: 2519
diff changeset
336 end
c6fd8975704b mod_firewall: Initial support for lists, in-memory and HTTP
Matthew Wild <mwild1@gmail.com>
parents: 2519
diff changeset
337
2528
44a71584521d mod_firewall: Add SEARCH, PATTERN definitions and SCAN condition to check tokenized stanza:find() against a list
Matthew Wild <mwild1@gmail.com>
parents: 2521
diff changeset
338 -- SCAN: body for word in badwords
44a71584521d mod_firewall: Add SEARCH, PATTERN definitions and SCAN condition to check tokenized stanza:find() against a list
Matthew Wild <mwild1@gmail.com>
parents: 2521
diff changeset
339 function condition_handlers.SCAN(scan_expression)
44a71584521d mod_firewall: Add SEARCH, PATTERN definitions and SCAN condition to check tokenized stanza:find() against a list
Matthew Wild <mwild1@gmail.com>
parents: 2521
diff changeset
340 local search_name, pattern_name, list_name = scan_expression:match("(%S+) for (%S+) in (%S+)$");
44a71584521d mod_firewall: Add SEARCH, PATTERN definitions and SCAN condition to check tokenized stanza:find() against a list
Matthew Wild <mwild1@gmail.com>
parents: 2521
diff changeset
341 if not (search_name) then
44a71584521d mod_firewall: Add SEARCH, PATTERN definitions and SCAN condition to check tokenized stanza:find() against a list
Matthew Wild <mwild1@gmail.com>
parents: 2521
diff changeset
342 error("Error parsing SCAN expression, syntax: SEARCH for PATTERN in LIST");
44a71584521d mod_firewall: Add SEARCH, PATTERN definitions and SCAN condition to check tokenized stanza:find() against a list
Matthew Wild <mwild1@gmail.com>
parents: 2521
diff changeset
343 end
2584
d64fc9c3cffd mod_firewall: Remove ambiguity from tokens dep parameter
Matthew Wild <mwild1@gmail.com>
parents: 2582
diff changeset
344 return ("scan_list(list_%s, %s)"):format(list_name, "tokens_"..search_name.."_"..pattern_name), { "scan_list", "tokens:"..search_name.."-"..pattern_name, "list:"..list_name };
2528
44a71584521d mod_firewall: Add SEARCH, PATTERN definitions and SCAN condition to check tokenized stanza:find() against a list
Matthew Wild <mwild1@gmail.com>
parents: 2521
diff changeset
345 end
44a71584521d mod_firewall: Add SEARCH, PATTERN definitions and SCAN condition to check tokenized stanza:find() against a list
Matthew Wild <mwild1@gmail.com>
parents: 2521
diff changeset
346
2618
c6652d055ba3 mod_firewall: Add some more comments
Matthew Wild <mwild1@gmail.com>
parents: 2594
diff changeset
347 -- COUNT: lines in body < 10
2545
9b46d24edf0d mod_firewall: Add and document COUNT condition
Matthew Wild <mwild1@gmail.com>
parents: 2537
diff changeset
348 local valid_comp_ops = { [">"] = ">", ["<"] = "<", ["="] = "==", ["=="] = "==", ["<="] = "<=", [">="] = ">=" };
9b46d24edf0d mod_firewall: Add and document COUNT condition
Matthew Wild <mwild1@gmail.com>
parents: 2537
diff changeset
349 function condition_handlers.COUNT(count_expression)
9b46d24edf0d mod_firewall: Add and document COUNT condition
Matthew Wild <mwild1@gmail.com>
parents: 2537
diff changeset
350 local pattern_name, search_name, comparator_expression = count_expression:match("(%S+) in (%S+) (.+)$");
9b46d24edf0d mod_firewall: Add and document COUNT condition
Matthew Wild <mwild1@gmail.com>
parents: 2537
diff changeset
351 if not (pattern_name) then
9b46d24edf0d mod_firewall: Add and document COUNT condition
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parents: 2537
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352 error("Error parsing COUNT expression, syntax: PATTERN in SEARCH COMPARATOR");
9b46d24edf0d mod_firewall: Add and document COUNT condition
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parents: 2537
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353 end
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Matthew Wild <mwild1@gmail.com>
parents: 2537
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354 local value;
9b46d24edf0d mod_firewall: Add and document COUNT condition
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parents: 2537
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355 comparator_expression = comparator_expression:gsub("%d+", function (value_string)
9b46d24edf0d mod_firewall: Add and document COUNT condition
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parents: 2537
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356 value = tonumber(value_string);
9b46d24edf0d mod_firewall: Add and document COUNT condition
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parents: 2537
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357 return "";
9b46d24edf0d mod_firewall: Add and document COUNT condition
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parents: 2537
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358 end);
9b46d24edf0d mod_firewall: Add and document COUNT condition
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parents: 2537
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359 if not value then
9b46d24edf0d mod_firewall: Add and document COUNT condition
Matthew Wild <mwild1@gmail.com>
parents: 2537
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360 error("Error parsing COUNT expression, expected value");
9b46d24edf0d mod_firewall: Add and document COUNT condition
Matthew Wild <mwild1@gmail.com>
parents: 2537
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361 end
9b46d24edf0d mod_firewall: Add and document COUNT condition
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parents: 2537
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362 local comp_op = comparator_expression:gsub("%s+", "");
9b46d24edf0d mod_firewall: Add and document COUNT condition
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parents: 2537
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363 assert(valid_comp_ops[comp_op], "Error parsing COUNT expression, unknown comparison operator: "..comp_op);
9b46d24edf0d mod_firewall: Add and document COUNT condition
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parents: 2537
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364 return ("it_count(search_%s:gmatch(pattern_%s)) %s %d"):format(search_name, pattern_name, comp_op, value), { "it_count", "search:"..search_name, "pattern:"..pattern_name };
9b46d24edf0d mod_firewall: Add and document COUNT condition
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parents: 2537
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365 end
9b46d24edf0d mod_firewall: Add and document COUNT condition
Matthew Wild <mwild1@gmail.com>
parents: 2537
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366
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
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367 return condition_handlers;