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annotate mod_firewall/mod_firewall.lua @ 947:c91cac3b823f

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mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
author Matthew Wild <mwild1@gmail.com>
date Wed, 03 Apr 2013 16:11:20 +0100
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children 97454c088b6c
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c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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1
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2 local resolve_relative_path = require "core.configmanager".resolve_relative_path;
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3 local logger = require "util.logger".init;
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4 local set = require "util.set";
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5 local add_filter = require "util.filters".add_filter;
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7
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8 zones = {};
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9 local zones = zones;
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10 setmetatable(zones, {
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11 __index = function (zones, zone)
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12 local t = { [zone] = true };
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13 rawset(zones, zone, t);
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14 return t;
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15 end;
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16 });
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17
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18 local chains = {
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19 preroute = {
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20 type = "event";
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21 priority = 0.1;
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22 "pre-message/bare", "pre-message/full", "pre-message/host";
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23 "pre-presence/bare", "pre-presence/full", "pre-presence/host";
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24 "pre-iq/bare", "pre-iq/full", "pre-iq/host";
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25 };
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26 deliver = {
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27 type = "event";
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28 priority = 0.1;
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29 "message/bare", "message/full", "message/host";
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30 "presence/bare", "presence/full", "presence/host";
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31 "iq/bare", "iq/full", "iq/host";
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32 };
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33 deliver_remote = {
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34 type = "event"; "route/remote";
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35 priority = 0.1;
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36 };
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37 };
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38
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39 -- Dependency locations:
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40 -- <type lib>
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41 -- <type global>
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42 -- function handler()
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43 -- <local deps>
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44 -- if <conditions> then
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45 -- <actions>
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46 -- end
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47 -- end
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48
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49 local available_deps = {
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50 st = { global_code = [[local st = require "util.stanza"]]};
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51 jid_split = {
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52 global_code = [[local jid_split = require "util.jid".split;]];
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53 };
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54 jid_bare = {
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55 global_code = [[local jid_bare = require "util.jid".bare;]];
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56 };
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57 to = { local_code = [[local to = stanza.attr.to;]] };
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58 from = { local_code = [[local from = stanza.attr.from;]] };
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59 type = { local_code = [[local type = stanza.attr.type;]] };
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60 name = { local_code = [[local name = stanza.name]] };
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61 split_to = { -- The stanza's split to address
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62 depends = { "jid_split", "to" };
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63 local_code = [[local to_node, to_host, to_resource = jid_split(to);]];
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64 };
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65 split_from = { -- The stanza's split from address
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66 depends = { "jid_split", "from" };
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67 local_code = [[local from_node, from_host, from_resource = jid_split(from);]];
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68 };
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69 bare_to = { depends = { "jid_bare", "to" }, local_code = "local bare_to = jid_bare(to)"};
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70 bare_from = { depends = { "jid_bare", "from" }, local_code = "local bare_from = jid_bare(from)"};
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71 group_contains = {
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72 global_code = [[local group_contains = module:depends("groups").group_contains]];
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73 };
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74 is_admin = { global_code = [[local is_admin = require "core.usermanager".is_admin]]};
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75 core_post_stanza = { global_code = [[local core_post_stanza = prosody.core_post_stanza]] };
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76 };
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77
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78 local function include_dep(dep, code)
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79 local dep_info = available_deps[dep];
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80 if not dep_info then
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81 module:log("error", "Dependency not found: %s", dep);
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82 return;
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83 end
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84 if code.included_deps[dep] then
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85 if code.included_deps[dep] ~= true then
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86 module:log("error", "Circular dependency on %s", dep);
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87 end
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88 return;
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89 end
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90 code.included_deps[dep] = false; -- Pending flag (used to detect circular references)
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91 for _, dep_dep in ipairs(dep_info.depends or {}) do
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92 include_dep(dep_dep, code);
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93 end
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94 if dep_info.global_code then
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95 table.insert(code.global_header, dep_info.global_code);
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96 end
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97 if dep_info.local_code then
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98 table.insert(code, "\n\t-- "..dep.."\n\t"..dep_info.local_code.."\n\n\t");
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99 end
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100 code.included_deps[dep] = true;
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101 end
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102
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103 local condition_handlers = module:require("conditions");
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104 local action_handlers = module:require("actions");
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105
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106 local function new_rule(ruleset, chain)
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107 assert(chain, "no chain specified");
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108 local rule = { conditions = {}, actions = {}, deps = {} };
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109 table.insert(ruleset[chain], rule);
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110 return rule;
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111 end
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112
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113 local function compile_firewall_rules(filename)
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114 local line_no = 0;
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115
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116 local ruleset = {
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117 deliver = {};
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118 };
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119
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120 local chain = "deliver"; -- Default chain
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121 local rule;
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122
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123 local file, err = io.open(filename);
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124 if not file then return nil, err; end
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125
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126 local state; -- nil -> "rules" -> "actions" -> nil -> ...
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127
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diff changeset
128 local line_hold;
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parents:
diff changeset
129 for line in file:lines() do
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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diff changeset
130 line = line:match("^%s*(.-)%s*$");
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
131 if line_hold and line:sub(-1,-1) ~= "\\" then
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parents:
diff changeset
132 line = line_hold..line;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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diff changeset
133 line_hold = nil;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
134 elseif line:sub(-1,-1) == "\\" then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
135 line_hold = (line_hold or "")..line:sub(1,-2);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
136 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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diff changeset
137 line_no = line_no + 1;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
138
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
139 if line_hold or line:match("^[#;]") then
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140 -- No action; comment or partial line
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
141 elseif line == "" then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
142 if state == "rules" then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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143 return nil, ("Expected an action on line %d for preceding criteria")
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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144 :format(line_no);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
145 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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diff changeset
146 state = nil;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
147 elseif not(state) and line:match("^::") then
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parents:
diff changeset
148 chain = line:gsub("^::%s*", "");
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parents:
diff changeset
149 ruleset[chain] = ruleset[chain] or {};
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parents:
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150 elseif not(state) and line:match("^ZONE ") then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
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151 local zone_name = line:match("^ZONE ([^:]+)");
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152 local zone_members = line:match("^ZONE .-: ?(.*)");
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diff changeset
153 local zone_member_list = {};
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
154 for member in zone_members:gmatch("[^, ]+") do
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
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155 zone_member_list[#zone_member_list+1] = member;
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parents:
diff changeset
156 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
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157 zones[zone_name] = set.new(zone_member_list)._items;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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158 elseif line:match("^[^%s:]+[%.=]") then
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parents:
diff changeset
159 -- Action
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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160 if state == nil then
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161 -- This is a standalone action with no conditions
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
162 rule = new_rule(ruleset, chain);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
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163 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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164 state = "actions";
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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165 -- Action handlers?
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
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166 local action = line:match("^%P+");
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parents:
diff changeset
167 if not action_handlers[action] then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
168 return nil, ("Unknown action on line %d: %s"):format(line_no, action or "<unknown>");
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
169 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
170 table.insert(rule.actions, "-- "..line)
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
171 local action_string, action_deps = action_handlers[action](line:match("=(.+)$"));
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
172 table.insert(rule.actions, action_string);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
173 for _, dep in ipairs(action_deps or {}) do
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
174 table.insert(rule.deps, dep);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
175 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
176 elseif state == "actions" then -- state is actions but action pattern did not match
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
177 state = nil; -- Awaiting next rule, etc.
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
178 table.insert(ruleset[chain], rule);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
179 rule = nil;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
180 else
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
181 if not state then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
182 state = "rules";
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
183 rule = new_rule(ruleset, chain);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
184 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
185 -- Check standard modifiers for the condition (e.g. NOT)
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
186 local negated;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
187 local condition = line:match("^[^:=%.]*");
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
188 if condition:match("%f[%w]NOT%f[^%w]") then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
189 local s, e = condition:match("%f[%w]()NOT()%f[^%w]");
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
190 condition = (condition:sub(1,s-1)..condition:sub(e+1, -1)):match("^%s*(.-)%s*$");
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
191 negated = true;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
192 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
193 condition = condition:gsub(" ", "");
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
194 if not condition_handlers[condition] then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
195 return nil, ("Unknown condition on line %d: %s"):format(line_no, condition);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
196 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
197 -- Get the code for this condition
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
198 local condition_code, condition_deps = condition_handlers[condition](line:match(":%s?(.+)$"));
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
199 if negated then condition_code = "not("..condition_code..")"; end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
200 table.insert(rule.conditions, condition_code);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
201 for _, dep in ipairs(condition_deps or {}) do
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
202 table.insert(rule.deps, dep);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
203 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
204 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
205 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
206
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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parents:
diff changeset
207 -- Compile ruleset and return complete code
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
208
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
209 local chain_handlers = {};
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
210
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
211 -- Loop through the chains in the parsed ruleset (e.g. incoming, outgoing)
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
212 for chain_name, rules in pairs(ruleset) do
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
213 local code = { included_deps = {}, global_header = {} };
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
214 -- This inner loop assumes chain is an event-based, not a filter-based
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
215 -- chain (filter-based will be added later)
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
216 for _, rule in ipairs(rules) do
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
217 for _, dep in ipairs(rule.deps) do
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
218 include_dep(dep, code);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
219 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
220 local rule_code = "if ("..table.concat(rule.conditions, ") and (")..") then\n\t"
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
221 ..table.concat(rule.actions, "\n\t")
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
222 .."\n end\n";
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
223 table.insert(code, rule_code);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
224 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
225
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
226 assert(chains[chain_name].type == "event", "Only event chains supported at the moment")
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
227
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
228 local code_string = [[return function (zones, log)
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
229 ]]..table.concat(code.global_header, "\n")..[[
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
230 local db = require 'util.debug'
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
231 return function (event)
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
232 local stanza, session = event.stanza, event.origin;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
233
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
234 ]]..table.concat(code, " ")..[[
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
235 end;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
236 end]];
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
237
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
238 print(code_string)
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
239
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
240 -- Prepare event handler function
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
241 local chunk, err = loadstring(code_string, "="..filename);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
242 if not chunk then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
243 return nil, "Error compiling (probably a compiler bug, please report): "..err;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
244 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
245 chunk = chunk()(zones, logger(filename)); -- Returns event handler with 'zones' upvalue.
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
246 chain_handlers[chain_name] = chunk;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
247 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
248
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
249 return chain_handlers;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
250 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
251
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
252 function module.load()
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
253 local firewall_scripts = module:get_option_set("firewall_scripts", {});
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
254 for script in firewall_scripts do
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
255 script = resolve_relative_path(script) or script;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
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256 local chain_functions, err = compile_firewall_rules(script)
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257
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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258 if not chain_functions then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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259 module:log("error", "Error compiling %s: %s", script, err or "unknown error");
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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260 else
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
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261 for chain, handler in pairs(chain_functions) do
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
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262 local chain_definition = chains[chain];
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
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263 if chain_definition.type == "event" then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
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264 for _, event_name in ipairs(chain_definition) do
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
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265 module:hook(event_name, handler, chain_definition.priority);
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266 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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267 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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268 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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269 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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270 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
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271 end