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comparison mod_firewall/definitions.lib.lua @ 2898:9fd61234b6f0

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mod_firewall/definitions: Comments on LIST backends
author Kim Alvefur <zash@zash.se>
date Tue, 06 Mar 2018 18:24:34 +0100
parents 22e11645a895
children c30f2cfe9f15
comparison
equal deleted inserted replaced
2897:39485b9bbdd6 2898:9fd61234b6f0
60 end; 60 end;
61 }; 61 };
62 end 62 end
63 63
64 local list_backends = { 64 local list_backends = {
65 -- %LIST name: memory (limit: number)
65 memory = { 66 memory = {
66 init = function (self, type, opts) 67 init = function (self, type, opts)
67 if opts.limit then 68 if opts.limit then
68 local have_cache_lib, cache_lib = pcall(require, "util.cache"); 69 local have_cache_lib, cache_lib = pcall(require, "util.cache");
69 if not have_cache_lib then 70 if not have_cache_lib then
86 end; 87 end;
87 contains = function (self, item) 88 contains = function (self, item)
88 return self.items[item] == true; 89 return self.items[item] == true;
89 end; 90 end;
90 }; 91 };
92
93 -- %LIST name: http://example.com/ (ttl: number, pattern: pat, hash: sha1)
91 http = { 94 http = {
92 init = function (self, url, opts) 95 init = function (self, url, opts)
93 local poll_interval = assert(tonumber(opts.ttl or "3600"), "invalid ttl for <"..url.."> (expected number of seconds)"); 96 local poll_interval = assert(tonumber(opts.ttl or "3600"), "invalid ttl for <"..url.."> (expected number of seconds)");
94 local pattern = opts.pattern or "([^\r\n]+)\r?\n"; 97 local pattern = opts.pattern or "([^\r\n]+)\r?\n";
95 assert(pcall(string.match, "", pattern), "invalid pattern for <"..url..">"); 98 assert(pcall(string.match, "", pattern), "invalid pattern for <"..url..">");
138 item = self.hash_function(item); 141 item = self.hash_function(item);
139 end 142 end
140 return self.items and self.items[item] == true; 143 return self.items and self.items[item] == true;
141 end; 144 end;
142 }; 145 };
146
147 -- %LIST: file:/path/to/file
143 file = { 148 file = {
144 init = function (self, file_spec, opts) 149 init = function (self, file_spec, opts)
145 local filename = file_spec:gsub("^file:", ""); 150 local filename = file_spec:gsub("^file:", "");
146 local file, err = io.open(filename); 151 local file, err = io.open(filename);
147 if not file then 152 if not file then