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4d4d5623 RG |
1 | /* |
2 | * This file is part of PowerDNS or dnsdist. | |
3 | * Copyright -- PowerDNS.COM B.V. and its contributors | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of version 2 of the GNU General Public License as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * In addition, for the avoidance of any doubt, permission is granted to | |
10 | * link this program with OpenSSL and to (re)distribute the binaries | |
11 | * produced as the result of such linking. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
21 | */ | |
22 | #include "dnsdist.hh" | |
23 | #include "dnsdist-kvs.hh" | |
24 | #include "dnsdist-lua.hh" | |
25 | ||
26 | void setupLuaBindingsKVS(bool client) | |
27 | { | |
28 | /* Key Value Store objects */ | |
29 | g_lua.writeFunction("KeyValueLookupKeySourceIP", []() { | |
30 | return std::shared_ptr<KeyValueLookupKey>(new KeyValueLookupKeySourceIP()); | |
31 | }); | |
32 | g_lua.writeFunction("KeyValueLookupKeyQName", [](boost::optional<bool> wireFormat) { | |
33 | return std::shared_ptr<KeyValueLookupKey>(new KeyValueLookupKeyQName(wireFormat ? *wireFormat : true)); | |
34 | }); | |
35 | g_lua.writeFunction("KeyValueLookupKeySuffix", [](boost::optional<size_t> minLabels, boost::optional<bool> wireFormat) { | |
36 | return std::shared_ptr<KeyValueLookupKey>(new KeyValueLookupKeySuffix(minLabels ? *minLabels : 0, wireFormat ? *wireFormat : true)); | |
37 | }); | |
38 | g_lua.writeFunction("KeyValueLookupKeyTag", [](const std::string& tag) { | |
39 | return std::shared_ptr<KeyValueLookupKey>(new KeyValueLookupKeyTag(tag)); | |
40 | }); | |
41 | ||
42 | #ifdef HAVE_LMDB | |
43 | g_lua.writeFunction("newLMDBKVStore", [client](const std::string& fname, const std::string& dbName) { | |
44 | if (client) { | |
45 | return std::shared_ptr<KeyValueStore>(nullptr); | |
46 | } | |
47 | return std::shared_ptr<KeyValueStore>(new LMDBKVStore(fname, dbName)); | |
48 | }); | |
49 | #endif /* HAVE_LMDB */ | |
50 | ||
51 | #ifdef HAVE_CDB | |
52 | g_lua.writeFunction("newCDBKVStore", [client](const std::string& fname, time_t refreshDelay) { | |
53 | if (client) { | |
54 | return std::shared_ptr<KeyValueStore>(nullptr); | |
55 | } | |
56 | return std::shared_ptr<KeyValueStore>(new CDBKVStore(fname, refreshDelay)); | |
57 | }); | |
58 | #endif /* HAVE_CDB */ | |
59 | ||
60 | g_lua.registerFunction<std::string(std::shared_ptr<KeyValueStore>::*)(const boost::variant<ComboAddress, DNSName, std::string>, boost::optional<bool> wireFormat)>("lookup", [](std::shared_ptr<KeyValueStore>& kvs, const boost::variant<ComboAddress, DNSName, std::string> keyVar, boost::optional<bool> wireFormat) { | |
61 | std::string result; | |
62 | if (!kvs) { | |
63 | return result; | |
64 | } | |
65 | ||
66 | if (keyVar.type() == typeid(ComboAddress)) { | |
7e0221fc | 67 | const auto ca = boost::get<ComboAddress>(&keyVar); |
4d4d5623 | 68 | KeyValueLookupKeySourceIP lookup; |
7e0221fc | 69 | for (const auto& key : lookup.getKeys(*ca)) { |
4d4d5623 RG |
70 | if (kvs->getValue(key, result)) { |
71 | return result; | |
72 | } | |
73 | } | |
74 | } | |
75 | else if (keyVar.type() == typeid(DNSName)) { | |
7e0221fc | 76 | const DNSName* dn = boost::get<DNSName>(&keyVar); |
4d4d5623 | 77 | KeyValueLookupKeyQName lookup(wireFormat ? *wireFormat : true); |
7e0221fc | 78 | for (const auto& key : lookup.getKeys(*dn)) { |
4d4d5623 RG |
79 | if (kvs->getValue(key, result)) { |
80 | return result; | |
81 | } | |
82 | } | |
83 | } | |
84 | else if (keyVar.type() == typeid(std::string)) { | |
7e0221fc RG |
85 | const std::string* keyStr = boost::get<std::string>(&keyVar); |
86 | kvs->getValue(*keyStr, result); | |
4d4d5623 RG |
87 | } |
88 | ||
89 | return result; | |
90 | }); | |
91 | ||
92 | g_lua.registerFunction<std::string(std::shared_ptr<KeyValueStore>::*)(const DNSName&, boost::optional<size_t> minLabels, boost::optional<bool> wireFormat)>("lookupSuffix", [](std::shared_ptr<KeyValueStore>& kvs, const DNSName& dn, boost::optional<size_t> minLabels, boost::optional<bool> wireFormat) { | |
93 | std::string result; | |
94 | if (!kvs) { | |
95 | return result; | |
96 | } | |
97 | ||
98 | KeyValueLookupKeySuffix lookup(minLabels ? *minLabels : 0, wireFormat ? *wireFormat : true); | |
99 | for (const auto& key : lookup.getKeys(dn)) { | |
100 | if (kvs->getValue(key, result)) { | |
101 | return result; | |
102 | } | |
103 | } | |
104 | ||
105 | return result; | |
106 | }); | |
107 | ||
108 | g_lua.registerFunction<bool(std::shared_ptr<KeyValueStore>::*)()>("reload", [](std::shared_ptr<KeyValueStore>& kvs) { | |
109 | if (!kvs) { | |
110 | return false; | |
111 | } | |
112 | ||
113 | return kvs->reload(); | |
114 | }); | |
115 | } |