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annotate mod_firewall/mod_firewall.lua @ 5416:2393dbae51ed

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mod_http_oauth2: Add option for specifying TTL of registered clients Meant to simplify configuration, since TTL vs ignoring expiration is expected to be the main thing one would want to configure. Unsure what the implications of having unlimited lifetime of clients are, given no way to revoke them currently, short of rotating the signing secret. On one hand, it would be annoying to have the client expire. On the other hand, it is trivial to re-register it.
author Kim Alvefur <zash@zash.se>
date Thu, 04 May 2023 18:41:33 +0200
parents 32a9817c7516
children fa8435a27f7e
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rev   line source
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1
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2 local lfs = require "lfs";
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3 local resolve_relative_path = require "core.configmanager".resolve_relative_path;
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4 local envload = require "util.envload".envload;
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5 local logger = require "util.logger".init;
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6 local it = require "util.iterators";
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7 local set = require "util.set";
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9 local have_features, features = pcall(require, "core.features");
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10 features = have_features and features.available or set.new();
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11
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12 -- [definition_type] = definition_factory(param)
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13 local definitions = module:shared("definitions");
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14
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15 -- When a definition instance has been instantiated, it lives here
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16 -- [definition_type][definition_name] = definition_object
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17 local active_definitions = {
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18 ZONE = {
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19 -- Default zone that includes all local hosts
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20 ["$local"] = setmetatable({}, { __index = prosody.hosts });
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21 };
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22 };
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24 local default_chains = {
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25 preroute = {
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26 type = "event";
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27 priority = 0.1;
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28 "pre-message/bare", "pre-message/full", "pre-message/host";
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29 "pre-presence/bare", "pre-presence/full", "pre-presence/host";
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30 "pre-iq/bare", "pre-iq/full", "pre-iq/host";
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31 };
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32 deliver = {
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33 type = "event";
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34 priority = 0.1;
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35 "message/bare", "message/full", "message/host";
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36 "presence/bare", "presence/full", "presence/host";
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37 "iq/bare", "iq/full", "iq/host";
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38 };
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39 deliver_remote = {
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40 type = "event"; "route/remote";
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41 priority = 0.1;
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42 };
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43 };
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45 local extra_chains = module:get_option("firewall_extra_chains", {});
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47 local chains = {};
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48 for k,v in pairs(default_chains) do
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49 chains[k] = v;
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50 end
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51 for k,v in pairs(extra_chains) do
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52 chains[k] = v;
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53 end
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54
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55 -- Returns the input if it is safe to be used as a variable name, otherwise nil
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56 function idsafe(name)
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57 return name:match("^%a[%w_]*$");
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58 end
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59
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60 local meta_funcs = {
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61 bare = function (code)
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62 return "jid_bare("..code..")", {"jid_bare"};
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63 end;
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64 node = function (code)
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65 return "(jid_split("..code.."))", {"jid_split"};
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66 end;
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67 host = function (code)
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68 return "(select(2, jid_split("..code..")))", {"jid_split"};
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69 end;
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70 resource = function (code)
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71 return "(select(3, jid_split("..code..")))", {"jid_split"};
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72 end;
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73 };
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74
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75 -- Run quoted (%q) strings through this to allow them to contain code. e.g.: LOG=Received: $(stanza:top_tag())
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76 function meta(s, deps, extra)
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77 return (s:gsub("$(%b())", function (expr)
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78 expr = expr:gsub("\\(.)", "%1");
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79 return [["..tostring(]]..expr..[[).."]];
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80 end)
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81 :gsub("$(%b<>)", function (expr)
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82 expr = expr:sub(2,-2);
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83 local default = "<undefined>";
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84 expr = expr:gsub("||(%b\"\")$", function (default_string)
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85 default = stripslashes(default_string:sub(2,-2));
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86 return "";
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87 end);
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88 local func_chain = expr:match("|[%w|]+$");
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89 if func_chain then
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90 expr = expr:sub(1, -1-#func_chain);
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91 end
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92 local code;
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93 if expr:match("^@") then
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94 -- Skip stanza:find() for simple attribute lookup
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95 local attr_name = expr:sub(2);
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96 if deps and (attr_name == "to" or attr_name == "from" or attr_name == "type") then
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97 -- These attributes may be cached in locals
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98 code = attr_name;
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99 table.insert(deps, attr_name);
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100 else
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101 code = "stanza.attr["..("%q"):format(attr_name).."]";
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102 end
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103 elseif expr:match("^%w+#$") then
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104 code = ("stanza:get_child_text(%q)"):format(expr:sub(1, -2));
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105 else
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106 code = ("stanza:find(%q)"):format(expr);
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107 end
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108 if func_chain then
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109 for func_name in func_chain:gmatch("|(%w+)") do
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110 -- to/from are already available in local variables, use those if possible
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111 if (code == "to" or code == "from") and func_name == "bare" then
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112 code = "bare_"..code;
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113 table.insert(deps, code);
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114 elseif (code == "to" or code == "from") and (func_name == "node" or func_name == "host" or func_name == "resource") then
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115 table.insert(deps, "split_"..code);
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116 code = code.."_"..func_name;
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117 else
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118 assert(meta_funcs[func_name], "unknown function: "..func_name);
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119 local new_code, new_deps = meta_funcs[func_name](code);
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120 code = new_code;
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121 if new_deps and #new_deps > 0 then
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122 assert(deps, "function not supported here: "..func_name);
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Matthew Wild <mwild1@gmail.com>
parents: 2517
diff changeset
123 for _, dep in ipairs(new_deps) do
0e1054c19f9d mod_firewall: More meta! Allow simple functions to be applied to $<> expressions
Matthew Wild <mwild1@gmail.com>
parents: 2517
diff changeset
124 table.insert(deps, dep);
0e1054c19f9d mod_firewall: More meta! Allow simple functions to be applied to $<> expressions
Matthew Wild <mwild1@gmail.com>
parents: 2517
diff changeset
125 end
0e1054c19f9d mod_firewall: More meta! Allow simple functions to be applied to $<> expressions
Matthew Wild <mwild1@gmail.com>
parents: 2517
diff changeset
126 end
0e1054c19f9d mod_firewall: More meta! Allow simple functions to be applied to $<> expressions
Matthew Wild <mwild1@gmail.com>
parents: 2517
diff changeset
127 end
0e1054c19f9d mod_firewall: More meta! Allow simple functions to be applied to $<> expressions
Matthew Wild <mwild1@gmail.com>
parents: 2517
diff changeset
128 end
2125
edf5cf3c474b mod_firewall: Move meta() function to main module, and make it a global so libs can use it
Matthew Wild <mwild1@gmail.com>
parents: 2124
diff changeset
129 end
2538
a1b6a6b0aabb mod_firewall: Reinstate the ability to set a default for stanza expressions
Matthew Wild <mwild1@gmail.com>
parents: 2533
diff changeset
130 return "\"..tostring("..code.." or "..("%q"):format(default)..")..\"";
2125
edf5cf3c474b mod_firewall: Move meta() function to main module, and make it a global so libs can use it
Matthew Wild <mwild1@gmail.com>
parents: 2124
diff changeset
131 end)
edf5cf3c474b mod_firewall: Move meta() function to main module, and make it a global so libs can use it
Matthew Wild <mwild1@gmail.com>
parents: 2124
diff changeset
132 :gsub("$$(%a+)", extra or {})
edf5cf3c474b mod_firewall: Move meta() function to main module, and make it a global so libs can use it
Matthew Wild <mwild1@gmail.com>
parents: 2124
diff changeset
133 :gsub([[^""%.%.]], "")
edf5cf3c474b mod_firewall: Move meta() function to main module, and make it a global so libs can use it
Matthew Wild <mwild1@gmail.com>
parents: 2124
diff changeset
134 :gsub([[%.%.""$]], ""));
edf5cf3c474b mod_firewall: Move meta() function to main module, and make it a global so libs can use it
Matthew Wild <mwild1@gmail.com>
parents: 2124
diff changeset
135 end
edf5cf3c474b mod_firewall: Move meta() function to main module, and make it a global so libs can use it
Matthew Wild <mwild1@gmail.com>
parents: 2124
diff changeset
136
2547
eb4f45bd7fef mod_firewall: Add metaq(), like meta() but takes an unquoted string
Matthew Wild <mwild1@gmail.com>
parents: 2546
diff changeset
137 function metaq(s, ...)
eb4f45bd7fef mod_firewall: Add metaq(), like meta() but takes an unquoted string
Matthew Wild <mwild1@gmail.com>
parents: 2546
diff changeset
138 return meta(("%q"):format(s), ...);
eb4f45bd7fef mod_firewall: Add metaq(), like meta() but takes an unquoted string
Matthew Wild <mwild1@gmail.com>
parents: 2546
diff changeset
139 end
eb4f45bd7fef mod_firewall: Add metaq(), like meta() but takes an unquoted string
Matthew Wild <mwild1@gmail.com>
parents: 2546
diff changeset
140
2546
6e4494772328 mod_firewall: Add stripslashes() function
Matthew Wild <mwild1@gmail.com>
parents: 2544
diff changeset
141 local escape_chars = {
6e4494772328 mod_firewall: Add stripslashes() function
Matthew Wild <mwild1@gmail.com>
parents: 2544
diff changeset
142 a = "\a", b = "\b", f = "\f", n = "\n", r = "\r", t = "\t",
6e4494772328 mod_firewall: Add stripslashes() function
Matthew Wild <mwild1@gmail.com>
parents: 2544
diff changeset
143 v = "\v", ["\\"] = "\\", ["\""] = "\"", ["\'"] = "\'"
6e4494772328 mod_firewall: Add stripslashes() function
Matthew Wild <mwild1@gmail.com>
parents: 2544
diff changeset
144 };
6e4494772328 mod_firewall: Add stripslashes() function
Matthew Wild <mwild1@gmail.com>
parents: 2544
diff changeset
145 function stripslashes(s)
6e4494772328 mod_firewall: Add stripslashes() function
Matthew Wild <mwild1@gmail.com>
parents: 2544
diff changeset
146 return (s:gsub("\\(.)", escape_chars));
6e4494772328 mod_firewall: Add stripslashes() function
Matthew Wild <mwild1@gmail.com>
parents: 2544
diff changeset
147 end
6e4494772328 mod_firewall: Add stripslashes() function
Matthew Wild <mwild1@gmail.com>
parents: 2544
diff changeset
148
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
149 -- Dependency locations:
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
150 -- <type lib>
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
151 -- <type global>
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
152 -- function handler()
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
153 -- <local deps>
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
154 -- if <conditions> then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
155 -- <actions>
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
156 -- end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
157 -- end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
158
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
159 local available_deps = {
1303
8a3f3f485675 mod_firewall: Produce code with nicer indentation
Florian Zeitz <florob@babelmonkeys.de>
parents: 1052
diff changeset
160 st = { global_code = [[local st = require "util.stanza";]]};
2544
223eea31588d mod_firewall: Add it(erators) and it_count dependencies
Matthew Wild <mwild1@gmail.com>
parents: 2543
diff changeset
161 it = { global_code = [[local it = require "util.iterators";]]};
223eea31588d mod_firewall: Add it(erators) and it_count dependencies
Matthew Wild <mwild1@gmail.com>
parents: 2543
diff changeset
162 it_count = { global_code = [[local it_count = it.count;]], depends = { "it" } };
2548
ce08a57e516b mod_firewall: Add 'current_host' variable/dependency
Matthew Wild <mwild1@gmail.com>
parents: 2547
diff changeset
163 current_host = { global_code = [[local current_host = module.host;]] };
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
164 jid_split = {
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
165 global_code = [[local jid_split = require "util.jid".split;]];
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
166 };
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
167 jid_bare = {
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
168 global_code = [[local jid_bare = require "util.jid".bare;]];
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
169 };
2412
9159f9166893 mod_firewall: Use the sender bare JID instead of 'to' for stanzas to self
Kim Alvefur <zash@zash.se>
parents: 2404
diff changeset
170 to = { local_code = [[local to = stanza.attr.to or jid_bare(session.full_jid);]]; depends = { "jid_bare" } };
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
171 from = { local_code = [[local from = stanza.attr.from;]] };
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
172 type = { local_code = [[local type = stanza.attr.type;]] };
2415
07d7036040ee mod_firewall: Insert semicolons after some statements to prevent ambiguous syntax in output (fixes #797)
Kim Alvefur <zash@zash.se>
parents: 2412
diff changeset
173 name = { local_code = [[local name = stanza.name;]] };
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
174 split_to = { -- The stanza's split to address
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
175 depends = { "jid_split", "to" };
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
176 local_code = [[local to_node, to_host, to_resource = jid_split(to);]];
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
177 };
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
178 split_from = { -- The stanza's split from address
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
179 depends = { "jid_split", "from" };
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
180 local_code = [[local from_node, from_host, from_resource = jid_split(from);]];
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
181 };
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
182 bare_to = { depends = { "jid_bare", "to" }, local_code = "local bare_to = jid_bare(to)"};
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
183 bare_from = { depends = { "jid_bare", "from" }, local_code = "local bare_from = jid_bare(from)"};
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
184 group_contains = {
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
185 global_code = [[local group_contains = module:depends("groups").group_contains]];
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
186 };
5160
8474a3b80200 mod_firewall: Fix 'is_admin' internal dependency rule #1797 (thanks diane)
Kim Alvefur <zash@zash.se>
parents: 5002
diff changeset
187 is_admin = require"core.usermanager".is_admin and { global_code = [[local is_admin = require "core.usermanager".is_admin;]]} or nil;
5002
84997bc3f92e mod_firewall: Update for role-auth (backwards compatible)
Matthew Wild <mwild1@gmail.com>
parents: 4608
diff changeset
188 get_jid_role = require "core.usermanager".get_jid_role and { global_code = [[local get_jid_role = require "core.usermanager".get_jid_role;]] } or nil;
2418
ef95853cf900 mod_firewall: More semicolons
Kim Alvefur <zash@zash.se>
parents: 2416
diff changeset
189 core_post_stanza = { global_code = [[local core_post_stanza = prosody.core_post_stanza;]] };
965
d4e24fb289c0 mod_firewall: Improve zone handling, make it more efficient, and support dynamic dependencies in the compiler. ENTERING and LEAVING conditions now work at expected (not matching stanzas flowing within a zone).
Matthew Wild <mwild1@gmail.com>
parents: 960
diff changeset
190 zone = { global_code = function (zone)
2928
b0d92332b87f mod_firewall: Add special case for $local zone (fixes #1090)
Kim Alvefur <zash@zash.se>
parents: 2894
diff changeset
191 local var = zone;
b0d92332b87f mod_firewall: Add special case for $local zone (fixes #1090)
Kim Alvefur <zash@zash.se>
parents: 2894
diff changeset
192 if var == "$local" then
b0d92332b87f mod_firewall: Add special case for $local zone (fixes #1090)
Kim Alvefur <zash@zash.se>
parents: 2894
diff changeset
193 var = "_local"; -- See #1090
b0d92332b87f mod_firewall: Add special case for $local zone (fixes #1090)
Kim Alvefur <zash@zash.se>
parents: 2894
diff changeset
194 else
b0d92332b87f mod_firewall: Add special case for $local zone (fixes #1090)
Kim Alvefur <zash@zash.se>
parents: 2894
diff changeset
195 assert(idsafe(var), "Invalid zone name: "..zone);
b0d92332b87f mod_firewall: Add special case for $local zone (fixes #1090)
Kim Alvefur <zash@zash.se>
parents: 2894
diff changeset
196 end
b0d92332b87f mod_firewall: Add special case for $local zone (fixes #1090)
Kim Alvefur <zash@zash.se>
parents: 2894
diff changeset
197 return ("local zone_%s = zones[%q] or {};"):format(var, zone);
965
d4e24fb289c0 mod_firewall: Improve zone handling, make it more efficient, and support dynamic dependencies in the compiler. ENTERING and LEAVING conditions now work at expected (not matching stanzas flowing within a zone).
Matthew Wild <mwild1@gmail.com>
parents: 960
diff changeset
198 end };
966
a65df6e97d94 mod_firewall: Add time and date deps
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
199 date_time = { global_code = [[local os_date = os.date]]; local_code = [[local current_date_time = os_date("*t");]] };
a65df6e97d94 mod_firewall: Add time and date deps
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
200 time = { local_code = function (what)
a65df6e97d94 mod_firewall: Add time and date deps
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
201 local defs = {};
a65df6e97d94 mod_firewall: Add time and date deps
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
202 for field in what:gmatch("%a+") do
a65df6e97d94 mod_firewall: Add time and date deps
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
203 table.insert(defs, ("local current_%s = current_date_time.%s;"):format(field, field));
a65df6e97d94 mod_firewall: Add time and date deps
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
204 end
a65df6e97d94 mod_firewall: Add time and date deps
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
205 return table.concat(defs, " ");
a65df6e97d94 mod_firewall: Add time and date deps
Matthew Wild <mwild1@gmail.com>
parents: 965
diff changeset
206 end, depends = { "date_time" }; };
2418
ef95853cf900 mod_firewall: More semicolons
Kim Alvefur <zash@zash.se>
parents: 2416
diff changeset
207 timestamp = { global_code = [[local get_time = require "socket".gettime;]]; local_code = [[local current_timestamp = get_time();]]; };
2128
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2126
diff changeset
208 globalthrottle = {
971
53e158e44a44 mod_firewall: Add rate limiting capabilities, and keep zones and throttle objects in shared tables
Matthew Wild <mwild1@gmail.com>
parents: 967
diff changeset
209 global_code = function (throttle)
53e158e44a44 mod_firewall: Add rate limiting capabilities, and keep zones and throttle objects in shared tables
Matthew Wild <mwild1@gmail.com>
parents: 967
diff changeset
210 assert(idsafe(throttle), "Invalid rate limit name: "..throttle);
999
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
211 assert(active_definitions.RATE[throttle], "Unknown rate limit: "..throttle);
2128
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2126
diff changeset
212 return ("local global_throttle_%s = rates.%s:single();"):format(throttle, throttle);
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2126
diff changeset
213 end;
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2126
diff changeset
214 };
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2126
diff changeset
215 multithrottle = {
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2126
diff changeset
216 global_code = function (throttle)
2130
9239893a2400 mod_firewall: Don't use util.cache unless it's needed, and add explanatory error if it is not available
Matthew Wild <mwild1@gmail.com>
parents: 2128
diff changeset
217 assert(pcall(require, "util.cache"), "Using LIMIT with 'on' requires Prosody 0.10 or higher");
2128
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2126
diff changeset
218 assert(idsafe(throttle), "Invalid rate limit name: "..throttle);
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2126
diff changeset
219 assert(active_definitions.RATE[throttle], "Unknown rate limit: "..throttle);
21bc4d7cddae mod_firewall: Add support for throttling based on user-defined properties (experimental)
Matthew Wild <mwild1@gmail.com>
parents: 2126
diff changeset
220 return ("local multi_throttle_%s = rates.%s:multi();"):format(throttle, throttle);
971
53e158e44a44 mod_firewall: Add rate limiting capabilities, and keep zones and throttle objects in shared tables
Matthew Wild <mwild1@gmail.com>
parents: 967
diff changeset
221 end;
53e158e44a44 mod_firewall: Add rate limiting capabilities, and keep zones and throttle objects in shared tables
Matthew Wild <mwild1@gmail.com>
parents: 967
diff changeset
222 };
4608
4e8fa75cc678 mod_firewall: Remove reliance on full_sessions being a global
Kim Alvefur <zash@zash.se>
parents: 4582
diff changeset
223 full_sessions = {
4e8fa75cc678 mod_firewall: Remove reliance on full_sessions being a global
Kim Alvefur <zash@zash.se>
parents: 4582
diff changeset
224 global_code = [[local full_sessions = prosody.full_sessions;]];
4e8fa75cc678 mod_firewall: Remove reliance on full_sessions being a global
Kim Alvefur <zash@zash.se>
parents: 4582
diff changeset
225 };
2402
2040330586e4 mod_firewall: Split import of rostermanager into its own dependency
Kim Alvefur <zash@zash.se>
parents: 2385
diff changeset
226 rostermanager = {
2040330586e4 mod_firewall: Split import of rostermanager into its own dependency
Kim Alvefur <zash@zash.se>
parents: 2385
diff changeset
227 global_code = [[local rostermanager = require "core.rostermanager";]];
2040330586e4 mod_firewall: Split import of rostermanager into its own dependency
Kim Alvefur <zash@zash.se>
parents: 2385
diff changeset
228 };
2342
6848297cf40a mod_firewall: Add conditions for testing whether a sender of a stanza is in the recipient's roster (or in a certain roster group)
Matthew Wild <mwild1@gmail.com>
parents: 2130
diff changeset
229 roster_entry = {
2416
ade918cd9ca7 mod_firewall: Only call rostermanager if username is available (fixes #796)
Kim Alvefur <zash@zash.se>
parents: 2415
diff changeset
230 local_code = [[local roster_entry = (to_node and rostermanager.load_roster(to_node, to_host) or {})[bare_from];]];
2402
2040330586e4 mod_firewall: Split import of rostermanager into its own dependency
Kim Alvefur <zash@zash.se>
parents: 2385
diff changeset
231 depends = { "rostermanager", "split_to", "bare_from" };
2040330586e4 mod_firewall: Split import of rostermanager into its own dependency
Kim Alvefur <zash@zash.se>
parents: 2385
diff changeset
232 };
2520
c6fd8975704b mod_firewall: Initial support for lists, in-memory and HTTP
Matthew Wild <mwild1@gmail.com>
parents: 2518
diff changeset
233 list = { global_code = function (list)
c6fd8975704b mod_firewall: Initial support for lists, in-memory and HTTP
Matthew Wild <mwild1@gmail.com>
parents: 2518
diff changeset
234 assert(idsafe(list), "Invalid list name: "..list);
c6fd8975704b mod_firewall: Initial support for lists, in-memory and HTTP
Matthew Wild <mwild1@gmail.com>
parents: 2518
diff changeset
235 assert(active_definitions.LIST[list], "Unknown list: "..list);
c6fd8975704b mod_firewall: Initial support for lists, in-memory and HTTP
Matthew Wild <mwild1@gmail.com>
parents: 2518
diff changeset
236 return ("local list_%s = lists[%q];"):format(list, list);
c6fd8975704b mod_firewall: Initial support for lists, in-memory and HTTP
Matthew Wild <mwild1@gmail.com>
parents: 2518
diff changeset
237 end
c6fd8975704b mod_firewall: Initial support for lists, in-memory and HTTP
Matthew Wild <mwild1@gmail.com>
parents: 2518
diff changeset
238 };
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: 2527
diff changeset
239 search = {
44a71584521d mod_firewall: Add SEARCH, PATTERN definitions and SCAN condition to check tokenized stanza:find() against a list
Matthew Wild <mwild1@gmail.com>
parents: 2527
diff changeset
240 local_code = function (search_name)
44a71584521d mod_firewall: Add SEARCH, PATTERN definitions and SCAN condition to check tokenized stanza:find() against a list
Matthew Wild <mwild1@gmail.com>
parents: 2527
diff changeset
241 local search_path = assert(active_definitions.SEARCH[search_name], "Undefined search path: "..search_name);
44a71584521d mod_firewall: Add SEARCH, PATTERN definitions and SCAN condition to check tokenized stanza:find() against a list
Matthew Wild <mwild1@gmail.com>
parents: 2527
diff changeset
242 return ("local search_%s = tostring(stanza:find(%q) or \"\")"):format(search_name, search_path);
44a71584521d mod_firewall: Add SEARCH, PATTERN definitions and SCAN condition to check tokenized stanza:find() against a list
Matthew Wild <mwild1@gmail.com>
parents: 2527
diff changeset
243 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: 2527
diff changeset
244 };
2543
3c16f0a8d66c mod_firewall: Do patterns properly, instead of cheating
Matthew Wild <mwild1@gmail.com>
parents: 2539
diff changeset
245 pattern = {
3c16f0a8d66c mod_firewall: Do patterns properly, instead of cheating
Matthew Wild <mwild1@gmail.com>
parents: 2539
diff changeset
246 local_code = function (pattern_name)
3c16f0a8d66c mod_firewall: Do patterns properly, instead of cheating
Matthew Wild <mwild1@gmail.com>
parents: 2539
diff changeset
247 local pattern = assert(active_definitions.PATTERN[pattern_name], "Undefined pattern: "..pattern_name);
3c16f0a8d66c mod_firewall: Do patterns properly, instead of cheating
Matthew Wild <mwild1@gmail.com>
parents: 2539
diff changeset
248 return ("local pattern_%s = %q"):format(pattern_name, pattern);
3c16f0a8d66c mod_firewall: Do patterns properly, instead of cheating
Matthew Wild <mwild1@gmail.com>
parents: 2539
diff changeset
249 end;
3c16f0a8d66c mod_firewall: Do patterns properly, instead of cheating
Matthew Wild <mwild1@gmail.com>
parents: 2539
diff changeset
250 };
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: 2527
diff changeset
251 tokens = {
44a71584521d mod_firewall: Add SEARCH, PATTERN definitions and SCAN condition to check tokenized stanza:find() against a list
Matthew Wild <mwild1@gmail.com>
parents: 2527
diff changeset
252 local_code = function (search_and_pattern)
2584
d64fc9c3cffd mod_firewall: Remove ambiguity from tokens dep parameter
Matthew Wild <mwild1@gmail.com>
parents: 2583
diff changeset
253 local search_name, pattern_name = search_and_pattern:match("^([^%-]+)-(.+)$");
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: 2527
diff changeset
254 local code = ([[local tokens_%s_%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: 2527
diff changeset
255 if search_%s then
2543
3c16f0a8d66c mod_firewall: Do patterns properly, instead of cheating
Matthew Wild <mwild1@gmail.com>
parents: 2539
diff changeset
256 for s in search_%s:gmatch(pattern_%s) do
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: 2527
diff changeset
257 tokens_%s_%s[s] = true;
44a71584521d mod_firewall: Add SEARCH, PATTERN definitions and SCAN condition to check tokenized stanza:find() against a list
Matthew Wild <mwild1@gmail.com>
parents: 2527
diff changeset
258 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: 2527
diff changeset
259 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: 2527
diff changeset
260 ]]):format(search_name, pattern_name, search_name, search_name, pattern_name, search_name, pattern_name);
2543
3c16f0a8d66c mod_firewall: Do patterns properly, instead of cheating
Matthew Wild <mwild1@gmail.com>
parents: 2539
diff changeset
261 return code, { "search:"..search_name, "pattern:"..pattern_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: 2527
diff changeset
262 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: 2527
diff changeset
263 };
44a71584521d mod_firewall: Add SEARCH, PATTERN definitions and SCAN condition to check tokenized stanza:find() against a list
Matthew Wild <mwild1@gmail.com>
parents: 2527
diff changeset
264 scan_list = {
2533
9aed7f4e9f07 mod_firewall: Fix scan_list() syntax error in generated code
Matthew Wild <mwild1@gmail.com>
parents: 2528
diff changeset
265 global_code = [[local function scan_list(list, items) for item in pairs(items) do if list:contains(item) then return true; end end end]];
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: 2527
diff changeset
266 }
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
267 };
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
268
2077
368b091e723b mod_firewall: Rename argument to avoid name clash [luacheck]
Kim Alvefur <zash@zash.se>
parents: 2076
diff changeset
269 local function include_dep(dependency, code)
368b091e723b mod_firewall: Rename argument to avoid name clash [luacheck]
Kim Alvefur <zash@zash.se>
parents: 2076
diff changeset
270 local dep, dep_param = dependency:match("^([^:]+):?(.*)$");
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
271 local dep_info = available_deps[dep];
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
272 if not dep_info then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
273 module:log("error", "Dependency not found: %s", dep);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
274 return;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
275 end
2583
b6b10f57aa56 mod_firewall: Fix for including the same dependency with different parameters
Matthew Wild <mwild1@gmail.com>
parents: 2580
diff changeset
276 if code.included_deps[dependency] ~= nil then
b6b10f57aa56 mod_firewall: Fix for including the same dependency with different parameters
Matthew Wild <mwild1@gmail.com>
parents: 2580
diff changeset
277 if code.included_deps[dependency] ~= true then
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
278 module:log("error", "Circular dependency on %s", dep);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
279 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
280 return;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
281 end
2583
b6b10f57aa56 mod_firewall: Fix for including the same dependency with different parameters
Matthew Wild <mwild1@gmail.com>
parents: 2580
diff changeset
282 code.included_deps[dependency] = false; -- Pending flag (used to detect circular references)
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
283 for _, dep_dep in ipairs(dep_info.depends or {}) do
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
284 include_dep(dep_dep, code);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
285 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
286 if dep_info.global_code then
965
d4e24fb289c0 mod_firewall: Improve zone handling, make it more efficient, and support dynamic dependencies in the compiler. ENTERING and LEAVING conditions now work at expected (not matching stanzas flowing within a zone).
Matthew Wild <mwild1@gmail.com>
parents: 960
diff changeset
287 if dep_param ~= "" then
2525
a35d85cfda92 mod_firewall: Fix for deps dynamically including deps
Matthew Wild <mwild1@gmail.com>
parents: 2524
diff changeset
288 local global_code, deps = dep_info.global_code(dep_param);
a35d85cfda92 mod_firewall: Fix for deps dynamically including deps
Matthew Wild <mwild1@gmail.com>
parents: 2524
diff changeset
289 if deps then
2562
78efd064aef3 mod_firewall: Rename variables to avoid shadowing #luacheck
Matthew Wild <mwild1@gmail.com>
parents: 2561
diff changeset
290 for _, dep_dep in ipairs(deps) do
78efd064aef3 mod_firewall: Rename variables to avoid shadowing #luacheck
Matthew Wild <mwild1@gmail.com>
parents: 2561
diff changeset
291 include_dep(dep_dep, code);
2525
a35d85cfda92 mod_firewall: Fix for deps dynamically including deps
Matthew Wild <mwild1@gmail.com>
parents: 2524
diff changeset
292 end
a35d85cfda92 mod_firewall: Fix for deps dynamically including deps
Matthew Wild <mwild1@gmail.com>
parents: 2524
diff changeset
293 end
a35d85cfda92 mod_firewall: Fix for deps dynamically including deps
Matthew Wild <mwild1@gmail.com>
parents: 2524
diff changeset
294 table.insert(code.global_header, global_code);
965
d4e24fb289c0 mod_firewall: Improve zone handling, make it more efficient, and support dynamic dependencies in the compiler. ENTERING and LEAVING conditions now work at expected (not matching stanzas flowing within a zone).
Matthew Wild <mwild1@gmail.com>
parents: 960
diff changeset
295 else
d4e24fb289c0 mod_firewall: Improve zone handling, make it more efficient, and support dynamic dependencies in the compiler. ENTERING and LEAVING conditions now work at expected (not matching stanzas flowing within a zone).
Matthew Wild <mwild1@gmail.com>
parents: 960
diff changeset
296 table.insert(code.global_header, dep_info.global_code);
d4e24fb289c0 mod_firewall: Improve zone handling, make it more efficient, and support dynamic dependencies in the compiler. ENTERING and LEAVING conditions now work at expected (not matching stanzas flowing within a zone).
Matthew Wild <mwild1@gmail.com>
parents: 960
diff changeset
297 end
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
298 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
299 if dep_info.local_code then
965
d4e24fb289c0 mod_firewall: Improve zone handling, make it more efficient, and support dynamic dependencies in the compiler. ENTERING and LEAVING conditions now work at expected (not matching stanzas flowing within a zone).
Matthew Wild <mwild1@gmail.com>
parents: 960
diff changeset
300 if dep_param ~= "" then
2525
a35d85cfda92 mod_firewall: Fix for deps dynamically including deps
Matthew Wild <mwild1@gmail.com>
parents: 2524
diff changeset
301 local local_code, deps = dep_info.local_code(dep_param);
a35d85cfda92 mod_firewall: Fix for deps dynamically including deps
Matthew Wild <mwild1@gmail.com>
parents: 2524
diff changeset
302 if deps then
2562
78efd064aef3 mod_firewall: Rename variables to avoid shadowing #luacheck
Matthew Wild <mwild1@gmail.com>
parents: 2561
diff changeset
303 for _, dep_dep in ipairs(deps) do
78efd064aef3 mod_firewall: Rename variables to avoid shadowing #luacheck
Matthew Wild <mwild1@gmail.com>
parents: 2561
diff changeset
304 include_dep(dep_dep, code);
2525
a35d85cfda92 mod_firewall: Fix for deps dynamically including deps
Matthew Wild <mwild1@gmail.com>
parents: 2524
diff changeset
305 end
a35d85cfda92 mod_firewall: Fix for deps dynamically including deps
Matthew Wild <mwild1@gmail.com>
parents: 2524
diff changeset
306 end
a35d85cfda92 mod_firewall: Fix for deps dynamically including deps
Matthew Wild <mwild1@gmail.com>
parents: 2524
diff changeset
307 table.insert(code, "\n\t\t-- "..dep.."\n\t\t"..local_code.."\n");
965
d4e24fb289c0 mod_firewall: Improve zone handling, make it more efficient, and support dynamic dependencies in the compiler. ENTERING and LEAVING conditions now work at expected (not matching stanzas flowing within a zone).
Matthew Wild <mwild1@gmail.com>
parents: 960
diff changeset
308 else
1303
8a3f3f485675 mod_firewall: Produce code with nicer indentation
Florian Zeitz <florob@babelmonkeys.de>
parents: 1052
diff changeset
309 table.insert(code, "\n\t\t-- "..dep.."\n\t\t"..dep_info.local_code.."\n");
965
d4e24fb289c0 mod_firewall: Improve zone handling, make it more efficient, and support dynamic dependencies in the compiler. ENTERING and LEAVING conditions now work at expected (not matching stanzas flowing within a zone).
Matthew Wild <mwild1@gmail.com>
parents: 960
diff changeset
310 end
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
311 end
2583
b6b10f57aa56 mod_firewall: Fix for including the same dependency with different parameters
Matthew Wild <mwild1@gmail.com>
parents: 2580
diff changeset
312 code.included_deps[dependency] = true;
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
313 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
314
999
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
315 local definition_handlers = module:require("definitions");
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
316 local condition_handlers = module:require("conditions");
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
317 local action_handlers = module:require("actions");
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
318
2894
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2859
diff changeset
319 if module:get_option_boolean("firewall_experimental_user_marks", false) then
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2859
diff changeset
320 module:require"marks";
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2859
diff changeset
321 end
165d2877eeac mod_firewall: Add experimental user-centric persistent marks behind a feature flag
Kim Alvefur <zash@zash.se>
parents: 2859
diff changeset
322
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
323 local function new_rule(ruleset, chain)
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
324 assert(chain, "no chain specified");
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
325 local rule = { conditions = {}, actions = {}, deps = {} };
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
326 table.insert(ruleset[chain], rule);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
327 return rule;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
328 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
329
2078
11539785cb92 mod_firewall: Split compile function into two parts in order to separate their scopes
Kim Alvefur <zash@zash.se>
parents: 2077
diff changeset
330 local function parse_firewall_rules(filename)
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
331 local line_no = 0;
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 1325
diff changeset
332
956
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
333 local function errmsg(err)
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
334 return "Error compiling "..filename.." on line "..line_no..": "..err;
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
335 end
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 1325
diff changeset
336
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
337 local ruleset = {
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
338 deliver = {};
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
339 };
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
340
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
341 local chain = "deliver"; -- Default chain
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
342 local rule;
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 1325
diff changeset
343
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
344 local file, err = io.open(filename);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
345 if not file then return nil, err; end
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 1325
diff changeset
346
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
347 local state; -- nil -> "rules" -> "actions" -> nil -> ...
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 1325
diff changeset
348
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
349 local line_hold;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
350 for line in file:lines() do
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
351 line = line:match("^%s*(.-)%s*$");
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
352 if line_hold and line:sub(-1,-1) ~= "\\" then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
353 line = line_hold..line;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
354 line_hold = nil;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
355 elseif line:sub(-1,-1) == "\\" then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
356 line_hold = (line_hold or "")..line:sub(1,-2);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
357 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
358 line_no = line_no + 1;
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 1325
diff changeset
359
2080
a435db77a5e5 mod_firewall: Silence warning about empty if branch [luacheck]
Kim Alvefur <zash@zash.se>
parents: 2078
diff changeset
360 if line_hold or line:find("^[#;]") then -- luacheck: ignore 542
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
361 -- No action; comment or partial line
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
362 elseif line == "" then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
363 if state == "rules" then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
364 return nil, ("Expected an action on line %d for preceding criteria")
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
365 :format(line_no);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
366 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
367 state = nil;
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: 1343
diff changeset
368 elseif not(state) and line:sub(1, 2) == "::" then
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
369 chain = line:gsub("^::%s*", "");
980
aeb11522a44f mod_firewall: Fix variable name
Kim Alvefur <zash@zash.se>
parents: 971
diff changeset
370 local chain_info = chains[chain];
956
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
371 if not chain_info then
2364
17d236129118 mod_firewall: Allow implicit defitions of chains in scripts if they begin with 'user/'
Matthew Wild <mwild1@gmail.com>
parents: 2342
diff changeset
372 if chain:match("^user/") then
2558
2b533a7b5236 mod_firewall: Make PASS bubble up through all chains, and add DEFAULT and RETURN
Matthew Wild <mwild1@gmail.com>
parents: 2550
diff changeset
373 chains[chain] = { type = "event", priority = 1, pass_return = false };
2364
17d236129118 mod_firewall: Allow implicit defitions of chains in scripts if they begin with 'user/'
Matthew Wild <mwild1@gmail.com>
parents: 2342
diff changeset
374 else
17d236129118 mod_firewall: Allow implicit defitions of chains in scripts if they begin with 'user/'
Matthew Wild <mwild1@gmail.com>
parents: 2342
diff changeset
375 return nil, errmsg("Unknown chain: "..chain);
17d236129118 mod_firewall: Allow implicit defitions of chains in scripts if they begin with 'user/'
Matthew Wild <mwild1@gmail.com>
parents: 2342
diff changeset
376 end
956
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
377 elseif chain_info.type ~= "event" then
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
378 return nil, errmsg("Only event chains supported at the moment");
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
379 end
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
380 ruleset[chain] = ruleset[chain] or {};
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: 1343
diff changeset
381 elseif not(state) and line:sub(1,1) == "%" then -- Definition (zone, limit, etc.)
4582
cc20493018f6 mod_firewall: Allow underscores in definition names
Matthew Wild <mwild1@gmail.com>
parents: 3981
diff changeset
382 local what, name = line:match("^%%%s*([%w_]+) +([^ :]+)");
999
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
383 if not definition_handlers[what] then
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
384 return nil, errmsg("Definition of unknown object: "..what);
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
385 elseif not name or not idsafe(name) then
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
386 return nil, errmsg("Invalid "..what.." name");
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
387 end
999
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
388
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
389 local val = line:match(": ?(.*)$");
2070
2356114ff505 mod_firewall: Optimize string match operations, string.find is faster than .match since no string is returned
Kim Alvefur <zash@zash.se>
parents: 1343
diff changeset
390 if not val and line:find(":<") then -- Read from file
999
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
391 local fn = line:match(":< ?(.-)%s*$");
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
392 if not fn then
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
393 return nil, errmsg("Unable to parse filename");
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
394 end
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
395 local f, err = io.open(fn);
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
396 if not f then return nil, errmsg(err); end
2526
b2fc41001c8e mod_firewall: Fix pattern
Matthew Wild <mwild1@gmail.com>
parents: 2525
diff changeset
397 val = f:read("*a"):gsub("\r?\n", " "):gsub("%s+$", "");
999
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
398 end
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
399 if not val then
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
400 return nil, errmsg("No value given for definition");
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
401 end
2550
19a182651a9b mod_firewall: Allow backslash escapes in definitions
Matthew Wild <mwild1@gmail.com>
parents: 2549
diff changeset
402 val = stripslashes(val);
999
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
403 local ok, ret = pcall(definition_handlers[what], name, val);
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
404 if not ok then
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
405 return nil, errmsg(ret);
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
406 end
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
407
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
408 if not active_definitions[what] then
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
409 active_definitions[what] = {};
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
410 end
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
411 active_definitions[what][name] = ret;
2539
1510b66a43fc mod_firewall: Allow using spaces instead of underscores in actions, as well as conditions
Matthew Wild <mwild1@gmail.com>
parents: 2538
diff changeset
412 elseif line:find("^[%w_ ]+[%.=]") then
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
413 -- Action
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
414 if state == nil then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
415 -- This is a standalone action with no conditions
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
416 rule = new_rule(ruleset, chain);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
417 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
418 state = "actions";
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
419 -- Action handlers?
2539
1510b66a43fc mod_firewall: Allow using spaces instead of underscores in actions, as well as conditions
Matthew Wild <mwild1@gmail.com>
parents: 2538
diff changeset
420 local action = line:match("^[%w_ ]+"):upper():gsub(" ", "_");
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
421 if not action_handlers[action] then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
422 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
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
423 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
424 table.insert(rule.actions, "-- "..line)
956
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
425 local ok, action_string, action_deps = pcall(action_handlers[action], line:match("=(.+)$"));
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
426 if not ok then
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
427 return nil, errmsg(action_string);
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
428 end
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
429 table.insert(rule.actions, action_string);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
430 for _, dep in ipairs(action_deps or {}) do
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
431 table.insert(rule.deps, dep);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
432 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
433 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
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
434 state = nil; -- Awaiting next rule, etc.
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
435 table.insert(ruleset[chain], rule);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
436 rule = nil;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
437 else
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
438 if not state then
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
439 state = "rules";
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
440 rule = new_rule(ruleset, chain);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
441 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
442 -- Check standard modifiers for the condition (e.g. NOT)
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
443 local negated;
2404
9af2d36567a8 mod_firewall: Allow conditions to end with a question mark
Kim Alvefur <zash@zash.se>
parents: 2402
diff changeset
444 local condition = line:match("^[^:=%.?]*");
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: 1343
diff changeset
445 if condition:find("%f[%w]NOT%f[^%w]") then
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
446 local s, e = condition:match("%f[%w]()NOT()%f[^%w]");
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
447 condition = (condition:sub(1,s-1)..condition:sub(e+1, -1)):match("^%s*(.-)%s*$");
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
448 negated = true;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
449 end
998
6fdcebbd2284 mod_firewall: Fix conditions with spaces
Matthew Wild <mwild1@gmail.com>
parents: 996
diff changeset
450 condition = condition:gsub(" ", "_");
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
451 if not condition_handlers[condition] then
998
6fdcebbd2284 mod_firewall: Fix conditions with spaces
Matthew Wild <mwild1@gmail.com>
parents: 996
diff changeset
452 return nil, ("Unknown condition on line %d: %s"):format(line_no, (condition:gsub("_", " ")));
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
453 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
454 -- Get the code for this condition
956
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
455 local ok, condition_code, condition_deps = pcall(condition_handlers[condition], line:match(":%s?(.+)$"));
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
456 if not ok then
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
457 return nil, errmsg(condition_code);
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
458 end
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
459 if negated then condition_code = "not("..condition_code..")"; end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
460 table.insert(rule.conditions, condition_code);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
461 for _, dep in ipairs(condition_deps or {}) do
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
462 table.insert(rule.deps, dep);
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
463 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
464 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
465 end
2078
11539785cb92 mod_firewall: Split compile function into two parts in order to separate their scopes
Kim Alvefur <zash@zash.se>
parents: 2077
diff changeset
466 return ruleset;
11539785cb92 mod_firewall: Split compile function into two parts in order to separate their scopes
Kim Alvefur <zash@zash.se>
parents: 2077
diff changeset
467 end
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 1325
diff changeset
468
2078
11539785cb92 mod_firewall: Split compile function into two parts in order to separate their scopes
Kim Alvefur <zash@zash.se>
parents: 2077
diff changeset
469 local function process_firewall_rules(ruleset)
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
470 -- Compile ruleset and return complete code
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 1325
diff changeset
471
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
472 local chain_handlers = {};
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
473
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
474 -- 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
475 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
476 local code = { included_deps = {}, global_header = {} };
1304
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
477 local condition_uses = {};
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
478 -- 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
479 -- 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
480 for _, rule in ipairs(rules) do
1304
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
481 for _, condition in ipairs(rule.conditions) do
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: 1343
diff changeset
482 if condition:find("^not%(.+%)$") then
1304
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
483 condition = condition:match("^not%((.+)%)$");
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
484 end
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
485 condition_uses[condition] = (condition_uses[condition] or 0) + 1;
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
486 end
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
487 end
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
488
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
489 local condition_cache, n_conditions = {}, 0;
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
490 for _, rule in ipairs(rules) do
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
491 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
492 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
493 end
1303
8a3f3f485675 mod_firewall: Produce code with nicer indentation
Florian Zeitz <florob@babelmonkeys.de>
parents: 1052
diff changeset
494 table.insert(code, "\n\t\t");
8a3f3f485675 mod_firewall: Produce code with nicer indentation
Florian Zeitz <florob@babelmonkeys.de>
parents: 1052
diff changeset
495 local rule_code;
967
a88f33fe6970 mod_firewall: Don't add empty conditions check when no conditions are listed in a rule
Matthew Wild <mwild1@gmail.com>
parents: 966
diff changeset
496 if #rule.conditions > 0 then
996
37af655ca575 mod_firewall: Cache conditions, so that they are only calculated once per chain execution
Matthew Wild <mwild1@gmail.com>
parents: 980
diff changeset
497 for i, condition in ipairs(rule.conditions) do
1001
c0850793b716 mod_firewall: don't use %b() (not technically correct)
Matthew Wild <mwild1@gmail.com>
parents: 999
diff changeset
498 local negated = condition:match("^not%(.+%)$");
996
37af655ca575 mod_firewall: Cache conditions, so that they are only calculated once per chain execution
Matthew Wild <mwild1@gmail.com>
parents: 980
diff changeset
499 if negated then
37af655ca575 mod_firewall: Cache conditions, so that they are only calculated once per chain execution
Matthew Wild <mwild1@gmail.com>
parents: 980
diff changeset
500 condition = condition:match("^not%((.+)%)$");
37af655ca575 mod_firewall: Cache conditions, so that they are only calculated once per chain execution
Matthew Wild <mwild1@gmail.com>
parents: 980
diff changeset
501 end
1304
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
502 if condition_uses[condition] > 1 then
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
503 local name = condition_cache[condition];
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
504 if not name then
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
505 n_conditions = n_conditions + 1;
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
506 name = "condition"..n_conditions;
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
507 condition_cache[condition] = name;
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
508 table.insert(code, "local "..name.." = "..condition..";\n\t\t");
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
509 end
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
510 rule.conditions[i] = (negated and "not(" or "")..name..(negated and ")" or "");
996
37af655ca575 mod_firewall: Cache conditions, so that they are only calculated once per chain execution
Matthew Wild <mwild1@gmail.com>
parents: 980
diff changeset
511 else
1304
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
512 rule.conditions[i] = (negated and "not(" or "(")..condition..")";
996
37af655ca575 mod_firewall: Cache conditions, so that they are only calculated once per chain execution
Matthew Wild <mwild1@gmail.com>
parents: 980
diff changeset
513 end
37af655ca575 mod_firewall: Cache conditions, so that they are only calculated once per chain execution
Matthew Wild <mwild1@gmail.com>
parents: 980
diff changeset
514 end
1304
9f24ccaa66a6 mod_firewall: Do not cache conditions with only a single use
Florian Zeitz <florob@babelmonkeys.de>
parents: 1303
diff changeset
515
1303
8a3f3f485675 mod_firewall: Produce code with nicer indentation
Florian Zeitz <florob@babelmonkeys.de>
parents: 1052
diff changeset
516 rule_code = "if "..table.concat(rule.conditions, " and ").." then\n\t\t\t"
8a3f3f485675 mod_firewall: Produce code with nicer indentation
Florian Zeitz <florob@babelmonkeys.de>
parents: 1052
diff changeset
517 ..table.concat(rule.actions, "\n\t\t\t")
8a3f3f485675 mod_firewall: Produce code with nicer indentation
Florian Zeitz <florob@babelmonkeys.de>
parents: 1052
diff changeset
518 .."\n\t\tend\n";
8a3f3f485675 mod_firewall: Produce code with nicer indentation
Florian Zeitz <florob@babelmonkeys.de>
parents: 1052
diff changeset
519 else
8a3f3f485675 mod_firewall: Produce code with nicer indentation
Florian Zeitz <florob@babelmonkeys.de>
parents: 1052
diff changeset
520 rule_code = table.concat(rule.actions, "\n\t\t");
967
a88f33fe6970 mod_firewall: Don't add empty conditions check when no conditions are listed in a rule
Matthew Wild <mwild1@gmail.com>
parents: 966
diff changeset
521 end
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
522 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
523 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
524
999
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
525 for name in pairs(definition_handlers) do
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
526 table.insert(code.global_header, 1, "local "..name:lower().."s = definitions."..name..";");
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
527 end
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
528
2558
2b533a7b5236 mod_firewall: Make PASS bubble up through all chains, and add DEFAULT and RETURN
Matthew Wild <mwild1@gmail.com>
parents: 2550
diff changeset
529 local code_string = "return function (definitions, fire_event, log, module, pass_return)\n\t"
1303
8a3f3f485675 mod_firewall: Produce code with nicer indentation
Florian Zeitz <florob@babelmonkeys.de>
parents: 1052
diff changeset
530 ..table.concat(code.global_header, "\n\t")
8a3f3f485675 mod_firewall: Produce code with nicer indentation
Florian Zeitz <florob@babelmonkeys.de>
parents: 1052
diff changeset
531 .."\n\tlocal db = require 'util.debug';\n\n\t"
8a3f3f485675 mod_firewall: Produce code with nicer indentation
Florian Zeitz <florob@babelmonkeys.de>
parents: 1052
diff changeset
532 .."return function (event)\n\t\t"
8a3f3f485675 mod_firewall: Produce code with nicer indentation
Florian Zeitz <florob@babelmonkeys.de>
parents: 1052
diff changeset
533 .."local stanza, session = event.stanza, event.origin;\n"
8a3f3f485675 mod_firewall: Produce code with nicer indentation
Florian Zeitz <florob@babelmonkeys.de>
parents: 1052
diff changeset
534 ..table.concat(code, "")
8a3f3f485675 mod_firewall: Produce code with nicer indentation
Florian Zeitz <florob@babelmonkeys.de>
parents: 1052
diff changeset
535 .."\n\tend;\nend";
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
536
956
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
537 chain_handlers[chain_name] = code_string;
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
538 end
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 1325
diff changeset
539
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
540 return chain_handlers;
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
541 end
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
542
2078
11539785cb92 mod_firewall: Split compile function into two parts in order to separate their scopes
Kim Alvefur <zash@zash.se>
parents: 2077
diff changeset
543 local function compile_firewall_rules(filename)
11539785cb92 mod_firewall: Split compile function into two parts in order to separate their scopes
Kim Alvefur <zash@zash.se>
parents: 2077
diff changeset
544 local ruleset, err = parse_firewall_rules(filename);
11539785cb92 mod_firewall: Split compile function into two parts in order to separate their scopes
Kim Alvefur <zash@zash.se>
parents: 2077
diff changeset
545 if not ruleset then return nil, err; end
11539785cb92 mod_firewall: Split compile function into two parts in order to separate their scopes
Kim Alvefur <zash@zash.se>
parents: 2077
diff changeset
546 local chain_handlers = process_firewall_rules(ruleset);
11539785cb92 mod_firewall: Split compile function into two parts in order to separate their scopes
Kim Alvefur <zash@zash.se>
parents: 2077
diff changeset
547 return chain_handlers;
11539785cb92 mod_firewall: Split compile function into two parts in order to separate their scopes
Kim Alvefur <zash@zash.se>
parents: 2077
diff changeset
548 end
11539785cb92 mod_firewall: Split compile function into two parts in order to separate their scopes
Kim Alvefur <zash@zash.se>
parents: 2077
diff changeset
549
2558
2b533a7b5236 mod_firewall: Make PASS bubble up through all chains, and add DEFAULT and RETURN
Matthew Wild <mwild1@gmail.com>
parents: 2550
diff changeset
550 -- Compile handler code into a factory that produces a valid event handler. Factory accepts
2b533a7b5236 mod_firewall: Make PASS bubble up through all chains, and add DEFAULT and RETURN
Matthew Wild <mwild1@gmail.com>
parents: 2550
diff changeset
551 -- a value to be returned on PASS
956
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
552 local function compile_handler(code_string, filename)
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
553 -- Prepare event handler function
3981
7e8f2e36419d mod_firewall: Use util.envload instead of deprecated loadstring (thanks Martin)
Kim Alvefur <zash@zash.se>
parents: 2928
diff changeset
554 local chunk, err = envload(code_string, "="..filename, _G);
956
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
555 if not chunk then
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
556 return nil, "Error compiling (probably a compiler bug, please report): "..err;
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
557 end
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
558 local function fire_event(name, data)
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
559 return module:fire_event(name, data);
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
560 end
5381
32a9817c7516 mod_firewall: Initialize compiled chunk just once for all handlers
Matthew Wild <mwild1@gmail.com>
parents: 5160
diff changeset
561 local init_ok, initialized_chunk = pcall(chunk);
32a9817c7516 mod_firewall: Initialize compiled chunk just once for all handlers
Matthew Wild <mwild1@gmail.com>
parents: 5160
diff changeset
562 if not init_ok then
32a9817c7516 mod_firewall: Initialize compiled chunk just once for all handlers
Matthew Wild <mwild1@gmail.com>
parents: 5160
diff changeset
563 return nil, "Error initializing compiled rules: "..initialized_chunk;
32a9817c7516 mod_firewall: Initialize compiled chunk just once for all handlers
Matthew Wild <mwild1@gmail.com>
parents: 5160
diff changeset
564 end
2558
2b533a7b5236 mod_firewall: Make PASS bubble up through all chains, and add DEFAULT and RETURN
Matthew Wild <mwild1@gmail.com>
parents: 2550
diff changeset
565 return function (pass_return)
5381
32a9817c7516 mod_firewall: Initialize compiled chunk just once for all handlers
Matthew Wild <mwild1@gmail.com>
parents: 5160
diff changeset
566 return initialized_chunk(active_definitions, fire_event, logger(filename), module, pass_return); -- Returns event handler with upvalues
2558
2b533a7b5236 mod_firewall: Make PASS bubble up through all chains, and add DEFAULT and RETURN
Matthew Wild <mwild1@gmail.com>
parents: 2550
diff changeset
567 end
956
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
568 end
33d6642f4db7 mod_firewall: Tighten up error handling, and split rules->Lua and Lua->bytecode compilation into separate functions
Matthew Wild <mwild1@gmail.com>
parents: 955
diff changeset
569
2366
14021c93a962 mod_firewall: Allow prefixing script paths with 'module:' to specify path relative to module file
Matthew Wild <mwild1@gmail.com>
parents: 2365
diff changeset
570 local function resolve_script_path(script_path)
14021c93a962 mod_firewall: Allow prefixing script paths with 'module:' to specify path relative to module file
Matthew Wild <mwild1@gmail.com>
parents: 2365
diff changeset
571 local relative_to = prosody.paths.config;
14021c93a962 mod_firewall: Allow prefixing script paths with 'module:' to specify path relative to module file
Matthew Wild <mwild1@gmail.com>
parents: 2365
diff changeset
572 if script_path:match("^module:") then
14021c93a962 mod_firewall: Allow prefixing script paths with 'module:' to specify path relative to module file
Matthew Wild <mwild1@gmail.com>
parents: 2365
diff changeset
573 relative_to = module.path:sub(1, -#("/mod_"..module.name..".lua"));
14021c93a962 mod_firewall: Allow prefixing script paths with 'module:' to specify path relative to module file
Matthew Wild <mwild1@gmail.com>
parents: 2365
diff changeset
574 script_path = script_path:match("^module:(.+)$");
14021c93a962 mod_firewall: Allow prefixing script paths with 'module:' to specify path relative to module file
Matthew Wild <mwild1@gmail.com>
parents: 2365
diff changeset
575 end
14021c93a962 mod_firewall: Allow prefixing script paths with 'module:' to specify path relative to module file
Matthew Wild <mwild1@gmail.com>
parents: 2365
diff changeset
576 return resolve_relative_path(relative_to, script_path);
14021c93a962 mod_firewall: Allow prefixing script paths with 'module:' to specify path relative to module file
Matthew Wild <mwild1@gmail.com>
parents: 2365
diff changeset
577 end
14021c93a962 mod_firewall: Allow prefixing script paths with 'module:' to specify path relative to module file
Matthew Wild <mwild1@gmail.com>
parents: 2365
diff changeset
578
2578
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
579 -- [filename] = { last_modified = ..., events_hooked = { [name] = handler } }
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
580 local loaded_scripts = {};
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
581
2574
f65c5927ee8e mod_firewall: Factor out script loading
Matthew Wild <mwild1@gmail.com>
parents: 2573
diff changeset
582 function load_script(script)
f65c5927ee8e mod_firewall: Factor out script loading
Matthew Wild <mwild1@gmail.com>
parents: 2573
diff changeset
583 script = resolve_script_path(script);
2578
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
584 local last_modified = (lfs.attributes(script) or {}).modification or os.time();
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
585 if loaded_scripts[script] then
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
586 if loaded_scripts[script].last_modified == last_modified then
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
587 return; -- Already loaded, and source file hasn't changed
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
588 end
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
589 module:log("debug", "Reloading %s", script);
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
590 -- Already loaded, but the source file has changed
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
591 -- unload it now, and we'll load the new version below
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
592 unload_script(script, true);
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
593 end
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
594 local chain_functions, err = compile_firewall_rules(script);
2859
22e11645a895 mod_firewall: Trim trailing whitespace [luacheck]
Kim Alvefur <zash@zash.se>
parents: 2585
diff changeset
595
2574
f65c5927ee8e mod_firewall: Factor out script loading
Matthew Wild <mwild1@gmail.com>
parents: 2573
diff changeset
596 if not chain_functions then
f65c5927ee8e mod_firewall: Factor out script loading
Matthew Wild <mwild1@gmail.com>
parents: 2573
diff changeset
597 module:log("error", "Error compiling %s: %s", script, err or "unknown error");
2578
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
598 return;
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
599 end
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
600
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
601 -- Loop through the chains in the script, and for each chain attach the compiled code to the
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
602 -- relevant events, keeping track in events_hooked so we can cleanly unload later
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
603 local events_hooked = {};
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
604 for chain, handler_code in pairs(chain_functions) do
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
605 local new_handler, err = compile_handler(handler_code, "mod_firewall::"..chain);
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
606 if not new_handler then
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
607 module:log("error", "Compilation error for %s: %s", script, err);
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
608 else
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
609 local chain_definition = chains[chain];
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
610 if chain_definition and chain_definition.type == "event" then
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
611 local handler = new_handler(chain_definition.pass_return);
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
612 for _, event_name in ipairs(chain_definition) do
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
613 events_hooked[event_name] = handler;
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
614 module:hook(event_name, handler, chain_definition.priority);
2574
f65c5927ee8e mod_firewall: Factor out script loading
Matthew Wild <mwild1@gmail.com>
parents: 2573
diff changeset
615 end
2578
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
616 elseif not chain:sub(1, 5) == "user/" then
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
617 module:log("warn", "Unknown chain %q", chain);
2574
f65c5927ee8e mod_firewall: Factor out script loading
Matthew Wild <mwild1@gmail.com>
parents: 2573
diff changeset
618 end
2578
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
619 local event_name, handler = "firewall/chains/"..chain, new_handler(false);
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
620 events_hooked[event_name] = handler;
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
621 module:hook(event_name, handler);
2574
f65c5927ee8e mod_firewall: Factor out script loading
Matthew Wild <mwild1@gmail.com>
parents: 2573
diff changeset
622 end
f65c5927ee8e mod_firewall: Factor out script loading
Matthew Wild <mwild1@gmail.com>
parents: 2573
diff changeset
623 end
2578
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
624 loaded_scripts[script] = { last_modified = last_modified, events_hooked = events_hooked };
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
625 module:log("debug", "Loaded %s", script);
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
626 end
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
627
2580
aaff2716f022 mod_firewall: Compatibility fix for 0.9 (no module:unhook())
Matthew Wild <mwild1@gmail.com>
parents: 2579
diff changeset
628 --COMPAT w/0.9 (no module:unhook()!)
aaff2716f022 mod_firewall: Compatibility fix for 0.9 (no module:unhook())
Matthew Wild <mwild1@gmail.com>
parents: 2579
diff changeset
629 local function module_unhook(event, handler)
aaff2716f022 mod_firewall: Compatibility fix for 0.9 (no module:unhook())
Matthew Wild <mwild1@gmail.com>
parents: 2579
diff changeset
630 return module:unhook_object_event((hosts[module.host] or prosody).events, event, handler);
aaff2716f022 mod_firewall: Compatibility fix for 0.9 (no module:unhook())
Matthew Wild <mwild1@gmail.com>
parents: 2579
diff changeset
631 end
aaff2716f022 mod_firewall: Compatibility fix for 0.9 (no module:unhook())
Matthew Wild <mwild1@gmail.com>
parents: 2579
diff changeset
632
2578
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
633 function unload_script(script, is_reload)
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
634 script = resolve_script_path(script);
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
635 local script_info = loaded_scripts[script];
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
636 if not script_info then
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
637 return; -- Script not loaded
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
638 end
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
639 local events_hooked = script_info.events_hooked;
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
640 for event_name, event_handler in pairs(events_hooked) do
2580
aaff2716f022 mod_firewall: Compatibility fix for 0.9 (no module:unhook())
Matthew Wild <mwild1@gmail.com>
parents: 2579
diff changeset
641 module_unhook(event_name, event_handler);
2578
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
642 events_hooked[event_name] = nil;
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
643 end
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
644 loaded_scripts[script] = nil;
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
645 if not is_reload then
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
646 module:log("debug", "Unloaded %s", script);
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
647 end
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
648 end
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
649
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
650 -- Given a set of scripts (e.g. from config) figure out which ones need to
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
651 -- be loaded, which are already loaded but need unloading, and which to reload
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
652 function load_unload_scripts(script_list)
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
653 local wanted_scripts = script_list / resolve_script_path;
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
654 local currently_loaded = set.new(it.to_array(it.keys(loaded_scripts)));
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
655 local scripts_to_unload = currently_loaded - wanted_scripts;
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
656 for script in wanted_scripts do
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
657 -- If the script is already loaded, this is fine - it will
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
658 -- reload the script for us if the file has changed
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
659 load_script(script);
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
660 end
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
661 for script in scripts_to_unload do
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
662 unload_script(script);
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
663 end
2574
f65c5927ee8e mod_firewall: Factor out script loading
Matthew Wild <mwild1@gmail.com>
parents: 2573
diff changeset
664 end
f65c5927ee8e mod_firewall: Factor out script loading
Matthew Wild <mwild1@gmail.com>
parents: 2573
diff changeset
665
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
666 function module.load()
1052
80f0a3231c59 mod_firewall: Add support for being called as a prosodyctl command
Kim Alvefur <zash@zash.se>
parents: 1051
diff changeset
667 if not prosody.arg then return end -- Don't run in prosodyctl
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
668 local firewall_scripts = module:get_option_set("firewall_scripts", {});
2578
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
669 load_unload_scripts(firewall_scripts);
999
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
670 -- Replace contents of definitions table (shared) with active definitions
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
671 for k in it.keys(definitions) do definitions[k] = nil; end
197af8440ffb mod_firewall: Make defining objects generic (currently zones and rate limits), so more can easily be added. Also a syntax change... definition lines must begin with %
Matthew Wild <mwild1@gmail.com>
parents: 998
diff changeset
672 for k,v in pairs(active_definitions) do definitions[k] = v; end
947
c91cac3b823f mod_firewall: General stanza filtering plugin with a declarative rule-based syntax
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
673 end
1052
80f0a3231c59 mod_firewall: Add support for being called as a prosodyctl command
Kim Alvefur <zash@zash.se>
parents: 1051
diff changeset
674
2578
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
675 function module.save()
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
676 return { active_definitions = active_definitions, loaded_scripts = loaded_scripts };
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
677 end
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
678
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
679 function module.restore(state)
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
680 active_definitions = state.active_definitions;
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
681 loaded_scripts = state.loaded_scripts;
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
682 end
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
683
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
684 module:hook_global("config-reloaded", function ()
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
685 load_unload_scripts(module:get_option_set("firewall_scripts", {}));
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
686 end);
6dbd07f9a868 mod_firewall: Various improvements allowing dynamic load/reload/unload of scripts
Matthew Wild <mwild1@gmail.com>
parents: 2574
diff changeset
687
1052
80f0a3231c59 mod_firewall: Add support for being called as a prosodyctl command
Kim Alvefur <zash@zash.se>
parents: 1051
diff changeset
688 function module.command(arg)
80f0a3231c59 mod_firewall: Add support for being called as a prosodyctl command
Kim Alvefur <zash@zash.se>
parents: 1051
diff changeset
689 if not arg[1] or arg[1] == "--help" then
80f0a3231c59 mod_firewall: Add support for being called as a prosodyctl command
Kim Alvefur <zash@zash.se>
parents: 1051
diff changeset
690 require"util.prosodyctl".show_usage([[mod_firewall <firewall.pfw>]], [[Compile files with firewall rules to Lua code]]);
80f0a3231c59 mod_firewall: Add support for being called as a prosodyctl command
Kim Alvefur <zash@zash.se>
parents: 1051
diff changeset
691 return 1;
80f0a3231c59 mod_firewall: Add support for being called as a prosodyctl command
Kim Alvefur <zash@zash.se>
parents: 1051
diff changeset
692 end
2118
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
693 local verbose = arg[1] == "-v";
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
694 if verbose then table.remove(arg, 1); end
1052
80f0a3231c59 mod_firewall: Add support for being called as a prosodyctl command
Kim Alvefur <zash@zash.se>
parents: 1051
diff changeset
695
2585
02c6ae745c4f mod_firewall: Add 'test' subcommand to read stanzas from stdin and test them against rules
Matthew Wild <mwild1@gmail.com>
parents: 2584
diff changeset
696 if arg[1] == "test" then
02c6ae745c4f mod_firewall: Add 'test' subcommand to read stanzas from stdin and test them against rules
Matthew Wild <mwild1@gmail.com>
parents: 2584
diff changeset
697 table.remove(arg, 1);
02c6ae745c4f mod_firewall: Add 'test' subcommand to read stanzas from stdin and test them against rules
Matthew Wild <mwild1@gmail.com>
parents: 2584
diff changeset
698 return module:require("test")(arg);
02c6ae745c4f mod_firewall: Add 'test' subcommand to read stanzas from stdin and test them against rules
Matthew Wild <mwild1@gmail.com>
parents: 2584
diff changeset
699 end
02c6ae745c4f mod_firewall: Add 'test' subcommand to read stanzas from stdin and test them against rules
Matthew Wild <mwild1@gmail.com>
parents: 2584
diff changeset
700
2117
5aa3b93cd37a mod_firewall: Make prosodyctl command output more realistic source (not guaranteed to work)
Kim Alvefur <zash@zash.se>
parents: 2113
diff changeset
701 local serialize = require "util.serialization".serialize;
2118
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
702 if verbose then
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
703 print("local logger = require \"util.logger\".init;");
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
704 print();
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
705 print("local function fire_event(name, data)\n\tmodule:fire_event(name, data)\nend");
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
706 print();
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
707 end
2117
5aa3b93cd37a mod_firewall: Make prosodyctl command output more realistic source (not guaranteed to work)
Kim Alvefur <zash@zash.se>
parents: 2113
diff changeset
708
1052
80f0a3231c59 mod_firewall: Add support for being called as a prosodyctl command
Kim Alvefur <zash@zash.se>
parents: 1051
diff changeset
709 for _, filename in ipairs(arg) do
2366
14021c93a962 mod_firewall: Allow prefixing script paths with 'module:' to specify path relative to module file
Matthew Wild <mwild1@gmail.com>
parents: 2365
diff changeset
710 filename = resolve_script_path(filename);
2117
5aa3b93cd37a mod_firewall: Make prosodyctl command output more realistic source (not guaranteed to work)
Kim Alvefur <zash@zash.se>
parents: 2113
diff changeset
711 print("do -- File "..filename);
2365
05dae9adf778 mod_firewall: Fix for when compiling on the command line and specifying multiple files
Matthew Wild <mwild1@gmail.com>
parents: 2364
diff changeset
712 local chain_functions = assert(compile_firewall_rules(filename));
2118
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
713 if verbose then
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
714 print();
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
715 print("local active_definitions = "..serialize(active_definitions)..";");
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
716 print();
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
717 end
2367
3ebd3cb4d7d2 mod_firewall: When compiling on the command-line with -v, ensure chain function names are unique and valid ids
Matthew Wild <mwild1@gmail.com>
parents: 2366
diff changeset
718 local c = 0;
1052
80f0a3231c59 mod_firewall: Add support for being called as a prosodyctl command
Kim Alvefur <zash@zash.se>
parents: 1051
diff changeset
719 for chain, handler_code in pairs(chain_functions) do
2367
3ebd3cb4d7d2 mod_firewall: When compiling on the command-line with -v, ensure chain function names are unique and valid ids
Matthew Wild <mwild1@gmail.com>
parents: 2366
diff changeset
720 c = c + 1;
2117
5aa3b93cd37a mod_firewall: Make prosodyctl command output more realistic source (not guaranteed to work)
Kim Alvefur <zash@zash.se>
parents: 2113
diff changeset
721 print("---- Chain "..chain:gsub("_", " "));
2367
3ebd3cb4d7d2 mod_firewall: When compiling on the command-line with -v, ensure chain function names are unique and valid ids
Matthew Wild <mwild1@gmail.com>
parents: 2366
diff changeset
722 local chain_func_name = "chain_"..tostring(c).."_"..chain:gsub("%p", "_");
2118
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
723 if not verbose then
2367
3ebd3cb4d7d2 mod_firewall: When compiling on the command-line with -v, ensure chain function names are unique and valid ids
Matthew Wild <mwild1@gmail.com>
parents: 2366
diff changeset
724 print(("%s = %s;"):format(chain_func_name, handler_code:sub(8)));
2118
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
725 else
2117
5aa3b93cd37a mod_firewall: Make prosodyctl command output more realistic source (not guaranteed to work)
Kim Alvefur <zash@zash.se>
parents: 2113
diff changeset
726
2367
3ebd3cb4d7d2 mod_firewall: When compiling on the command-line with -v, ensure chain function names are unique and valid ids
Matthew Wild <mwild1@gmail.com>
parents: 2366
diff changeset
727 print(("local %s = (%s)(active_definitions, fire_event, logger(%q));"):format(chain_func_name, handler_code:sub(8), filename));
2118
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
728 print();
2117
5aa3b93cd37a mod_firewall: Make prosodyctl command output more realistic source (not guaranteed to work)
Kim Alvefur <zash@zash.se>
parents: 2113
diff changeset
729
2118
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
730 local chain_definition = chains[chain];
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
731 if chain_definition and chain_definition.type == "event" then
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
732 for _, event_name in ipairs(chain_definition) do
2367
3ebd3cb4d7d2 mod_firewall: When compiling on the command-line with -v, ensure chain function names are unique and valid ids
Matthew Wild <mwild1@gmail.com>
parents: 2366
diff changeset
733 print(("module:hook(%q, %s, %d);"):format(event_name, chain_func_name, chain_definition.priority or 0));
2118
643b254e75de mod_firewall: Disable more realistic output by default, activated by adding a -v flag
Kim Alvefur <zash@zash.se>
parents: 2117
diff changeset
734 end
2117
5aa3b93cd37a mod_firewall: Make prosodyctl command output more realistic source (not guaranteed to work)
Kim Alvefur <zash@zash.se>
parents: 2113
diff changeset
735 end
2367
3ebd3cb4d7d2 mod_firewall: When compiling on the command-line with -v, ensure chain function names are unique and valid ids
Matthew Wild <mwild1@gmail.com>
parents: 2366
diff changeset
736 print(("module:hook(%q, %s, %d);"):format("firewall/chains/"..chain, chain_func_name, chain_definition.priority or 0));
2117
5aa3b93cd37a mod_firewall: Make prosodyctl command output more realistic source (not guaranteed to work)
Kim Alvefur <zash@zash.se>
parents: 2113
diff changeset
737 end
5aa3b93cd37a mod_firewall: Make prosodyctl command output more realistic source (not guaranteed to work)
Kim Alvefur <zash@zash.se>
parents: 2113
diff changeset
738
5aa3b93cd37a mod_firewall: Make prosodyctl command output more realistic source (not guaranteed to work)
Kim Alvefur <zash@zash.se>
parents: 2113
diff changeset
739 print("---- End of chain "..chain);
5aa3b93cd37a mod_firewall: Make prosodyctl command output more realistic source (not guaranteed to work)
Kim Alvefur <zash@zash.se>
parents: 2113
diff changeset
740 print();
1052
80f0a3231c59 mod_firewall: Add support for being called as a prosodyctl command
Kim Alvefur <zash@zash.se>
parents: 1051
diff changeset
741 end
2117
5aa3b93cd37a mod_firewall: Make prosodyctl command output more realistic source (not guaranteed to work)
Kim Alvefur <zash@zash.se>
parents: 2113
diff changeset
742 print("end -- End of file "..filename);
1052
80f0a3231c59 mod_firewall: Add support for being called as a prosodyctl command
Kim Alvefur <zash@zash.se>
parents: 1051
diff changeset
743 end
80f0a3231c59 mod_firewall: Add support for being called as a prosodyctl command
Kim Alvefur <zash@zash.se>
parents: 1051
diff changeset
744 end