prosody
d4c2a3060e7e
plugins/mod_storage_internal.lua

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plugins/mod_storage_internal.lua @ 9028:d4c2a3060e7e

util.pposix: Use freopen(3) when replacing standard IO streams (thanks ratchetfreak) Man page says this is what freopen(3) is for.
author Kim Alvefur <zash@zash.se>
date Thu, 12 Jul 2018 20:42:22 +0200
parent 8402:469afa02947b
child 9105:e735c9865f42
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4085
7699cef04740 storagemanager, mod_storage_internal: Split out default driver to mod_storage_internal, and greatly simplify storagemanager's error handling and fallback code
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
1 local datamanager = require "core.storagemanager".olddm;
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2 local array = require "util.array";
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3 local datetime = require "util.datetime";
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4 local st = require "util.stanza";
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5 local now = require "util.time".now;
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6 local id = require "util.id".medium;
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7699cef04740 storagemanager, mod_storage_internal: Split out default driver to mod_storage_internal, and greatly simplify storagemanager's error handling and fallback code
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8 local host = module.host;
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9
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b41c33dc7c36 mod_storage_*: Don't explicitly set driver name, to ease copying/renaming modules.
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10 local driver = {};
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11
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12 function driver:open(store, typ)
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13 local mt = self[typ or "keyval"]
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14 if not mt then
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7cf6d3a2c855 mod_storage_{none,internal,sql}: Return error for unsupported (everything but keyval) store types
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15 return nil, "unsupported-store";
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16 end
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17 return setmetatable({ store = store, type = typ }, mt);
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18 end
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19
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342ce07836de mod_storage_internal: Ignore unused 'self' argument [luacheck]
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20 function driver:stores(username) -- luacheck: ignore 212/self
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21 return datamanager.stores(username, host);
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22 end
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23
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24 function driver:purge(user) -- luacheck: ignore 212/self
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25 return datamanager.purge(user, host);
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26 end
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27
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28 local keyval = { };
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29 driver.keyval = { __index = keyval };
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30
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31 function keyval:get(user)
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32 return datamanager.load(user, host, self.store);
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33 end
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34
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35 function keyval:set(user, data)
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36 return datamanager.store(user, host, self.store, data);
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37 end
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38
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39 function keyval:users()
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40 return datamanager.users(host, self.store, self.type);
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41 end
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42
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43 local archive = {};
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44 driver.archive = { __index = archive };
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45
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46 function archive:append(username, key, value, when, with)
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47 when = when or now();
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48 if not st.is_stanza(value) then
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49 return nil, "unsupported-datatype";
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50 end
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51 value = st.preserialize(st.clone(value));
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52 value.when = when;
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53 value.with = with;
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54 value.attr.stamp = datetime.datetime(when);
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55 value.attr.stamp_legacy = datetime.legacy(when);
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56
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57 if key then
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58 local items, err = datamanager.list_load(username, host, self.store);
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59 if not items and err then return items, err; end
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60 if items then
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61 items = array(items);
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62 items:filter(function (item)
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63 return item.key ~= key;
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64 end);
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65 value.key = key;
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66 items:push(value);
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67 local ok, err = datamanager.list_store(username, host, self.store, items);
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68 if not ok then return ok, err; end
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69 return key;
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70 end
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71 else
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72 key = id();
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73 end
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74
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75 value.key = key;
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76
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77 local ok, err = datamanager.list_append(username, host, self.store, value);
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78 if not ok then return ok, err; end
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79 return key;
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80 end
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81
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82 function archive:find(username, query)
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83 local items, err = datamanager.list_load(username, host, self.store);
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84 if not items then
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85 if err then
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86 return items, err;
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87 else
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88 return function () end, 0;
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89 end
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90 end
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91 local count = #items;
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92 local i = 0;
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93 if query then
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94 items = array(items);
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95 if query.key then
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96 items:filter(function (item)
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97 return item.key == query.key;
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98 end);
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99 end
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100 if query.with then
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101 items:filter(function (item)
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102 return item.with == query.with;
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103 end);
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104 end
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105 if query.start then
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106 items:filter(function (item)
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107 return item.when >= query.start;
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108 end);
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109 end
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110 if query["end"] then
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111 items:filter(function (item)
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112 return item.when <= query["end"];
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113 end);
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114 end
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115 count = #items;
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116 if query.reverse then
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117 items:reverse();
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118 if query.before then
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119 for j = 1, count do
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120 if (items[j].key or tostring(j)) == query.before then
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121 i = j;
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122 break;
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123 end
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124 end
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125 end
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126 elseif query.after then
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127 for j = 1, count do
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128 if (items[j].key or tostring(j)) == query.after then
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129 i = j;
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130 break;
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parents: 8020
diff changeset
131 end
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
132 end
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
133 end
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
134 if query.limit and #items - i > query.limit then
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
135 items[i+query.limit+1] = nil;
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
136 end
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
137 end
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
138 return function ()
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
139 i = i + 1;
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
140 local item = items[i];
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
141 if not item then return; end
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
142 local key = item.key or tostring(i);
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
143 local when = item.when or datetime.parse(item.attr.stamp);
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
144 local with = item.with;
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
145 item.key, item.when, item.with = nil, nil, nil;
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
146 item.attr.stamp = nil;
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
147 item.attr.stamp_legacy = nil;
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
148 item = st.deserialize(item);
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
149 return key, item, when, with;
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
150 end, count;
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
151 end
83f18982bcfd mod_storage_internal: Add basic archive store implementation
Kim Alvefur <zash@zash.se>
parents: 8020
diff changeset
152
8023
5a9d491cc714 mod_storage_internal: Add the dates method
Kim Alvefur <zash@zash.se>
parents: 8022
diff changeset
153 function archive:dates(username)
5a9d491cc714 mod_storage_internal: Add the dates method
Kim Alvefur <zash@zash.se>
parents: 8022
diff changeset
154 local items, err = datamanager.list_load(username, host, self.store);
5a9d491cc714 mod_storage_internal: Add the dates method
Kim Alvefur <zash@zash.se>
parents: 8022
diff changeset
155 if not items then return items, err; end
5a9d491cc714 mod_storage_internal: Add the dates method
Kim Alvefur <zash@zash.se>
parents: 8022
diff changeset
156 return array(items):pluck("when"):map(datetime.date):unique();
5a9d491cc714 mod_storage_internal: Add the dates method
Kim Alvefur <zash@zash.se>
parents: 8022
diff changeset
157 end
5a9d491cc714 mod_storage_internal: Add the dates method
Kim Alvefur <zash@zash.se>
parents: 8022
diff changeset
158
8022
05e201468f27 mod_storage_internal: Add support for removing archived items
Kim Alvefur <zash@zash.se>
parents: 8021
diff changeset
159 function archive:delete(username, query)
05e201468f27 mod_storage_internal: Add support for removing archived items
Kim Alvefur <zash@zash.se>
parents: 8021
diff changeset
160 if not query or next(query) == nil then
05e201468f27 mod_storage_internal: Add support for removing archived items
Kim Alvefur <zash@zash.se>
parents: 8021
diff changeset
161 return datamanager.list_store(username, host, self.store, nil);
05e201468f27 mod_storage_internal: Add support for removing archived items
Kim Alvefur <zash@zash.se>
parents: 8021
diff changeset
162 end
05e201468f27 mod_storage_internal: Add support for removing archived items
Kim Alvefur <zash@zash.se>
parents: 8021
diff changeset
163 local items, err = datamanager.list_load(username, host, self.store);
8143
c4c159953c72 mod_storage_internal: Handle case of empty item store when deleting (fixes #910)
Kim Alvefur <zash@zash.se>
parents: 8142
diff changeset
164 if not items then
c4c159953c72 mod_storage_internal: Handle case of empty item store when deleting (fixes #910)
Kim Alvefur <zash@zash.se>
parents: 8142
diff changeset
165 if err then
c4c159953c72 mod_storage_internal: Handle case of empty item store when deleting (fixes #910)
Kim Alvefur <zash@zash.se>
parents: 8142
diff changeset
166 return items, err;
c4c159953c72 mod_storage_internal: Handle case of empty item store when deleting (fixes #910)
Kim Alvefur <zash@zash.se>
parents: 8142
diff changeset
167 end
c4c159953c72 mod_storage_internal: Handle case of empty item store when deleting (fixes #910)
Kim Alvefur <zash@zash.se>
parents: 8142
diff changeset
168 -- Store is empty
c4c159953c72 mod_storage_internal: Handle case of empty item store when deleting (fixes #910)
Kim Alvefur <zash@zash.se>
parents: 8142
diff changeset
169 return 0;
c4c159953c72 mod_storage_internal: Handle case of empty item store when deleting (fixes #910)
Kim Alvefur <zash@zash.se>
parents: 8142
diff changeset
170 end
8022
05e201468f27 mod_storage_internal: Add support for removing archived items
Kim Alvefur <zash@zash.se>
parents: 8021
diff changeset
171 items = array(items);
8142
13e075549cb3 mod_storage_internal: Correctly calculate number of deleted items (fixes #912)
Kim Alvefur <zash@zash.se>
parents: 8089
diff changeset
172 local count_before = #items;
8310
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
173 if query then
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
174 if query.key then
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
175 items:filter(function (item)
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
176 return item.key ~= query.key;
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
177 end);
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
178 end
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
179 if query.with then
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
180 items:filter(function (item)
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
181 return item.with ~= query.with;
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
182 end);
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
183 end
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
184 if query.start then
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
185 items:filter(function (item)
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
186 return item.when < query.start;
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
187 end);
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
188 end
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
189 if query["end"] then
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
190 items:filter(function (item)
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
191 return item.when > query["end"];
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
192 end);
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
193 end
8393
b6a7b83f8d87 mod_storage_internal: Allow truncating deletion at the beginning or end of an archive store
Kim Alvefur <zash@zash.se>
parents: 8310
diff changeset
194 if query.truncate then
b6a7b83f8d87 mod_storage_internal: Allow truncating deletion at the beginning or end of an archive store
Kim Alvefur <zash@zash.se>
parents: 8310
diff changeset
195 if query.reverse then
b6a7b83f8d87 mod_storage_internal: Allow truncating deletion at the beginning or end of an archive store
Kim Alvefur <zash@zash.se>
parents: 8310
diff changeset
196 -- Before: { 1, 2, 3, 4, 5, }
b6a7b83f8d87 mod_storage_internal: Allow truncating deletion at the beginning or end of an archive store
Kim Alvefur <zash@zash.se>
parents: 8310
diff changeset
197 -- After: { 1, 2, 3 }
8394
4892c22403d5 mod_storage_internal: Optimize truncation
Kim Alvefur <zash@zash.se>
parents: 8393
diff changeset
198 for i = #items, query.truncate + 1, -1 do
4892c22403d5 mod_storage_internal: Optimize truncation
Kim Alvefur <zash@zash.se>
parents: 8393
diff changeset
199 items[i] = nil;
8393
b6a7b83f8d87 mod_storage_internal: Allow truncating deletion at the beginning or end of an archive store
Kim Alvefur <zash@zash.se>
parents: 8310
diff changeset
200 end
b6a7b83f8d87 mod_storage_internal: Allow truncating deletion at the beginning or end of an archive store
Kim Alvefur <zash@zash.se>
parents: 8310
diff changeset
201 else
b6a7b83f8d87 mod_storage_internal: Allow truncating deletion at the beginning or end of an archive store
Kim Alvefur <zash@zash.se>
parents: 8310
diff changeset
202 -- Before: { 1, 2, 3, 4, 5, }
b6a7b83f8d87 mod_storage_internal: Allow truncating deletion at the beginning or end of an archive store
Kim Alvefur <zash@zash.se>
parents: 8310
diff changeset
203 -- After: { 3, 4, 5 }
8394
4892c22403d5 mod_storage_internal: Optimize truncation
Kim Alvefur <zash@zash.se>
parents: 8393
diff changeset
204 local offset = #items - query.truncate;
4892c22403d5 mod_storage_internal: Optimize truncation
Kim Alvefur <zash@zash.se>
parents: 8393
diff changeset
205 for i = 1, #items do
4892c22403d5 mod_storage_internal: Optimize truncation
Kim Alvefur <zash@zash.se>
parents: 8393
diff changeset
206 items[i] = items[i+offset];
8393
b6a7b83f8d87 mod_storage_internal: Allow truncating deletion at the beginning or end of an archive store
Kim Alvefur <zash@zash.se>
parents: 8310
diff changeset
207 end
b6a7b83f8d87 mod_storage_internal: Allow truncating deletion at the beginning or end of an archive store
Kim Alvefur <zash@zash.se>
parents: 8310
diff changeset
208 end
b6a7b83f8d87 mod_storage_internal: Allow truncating deletion at the beginning or end of an archive store
Kim Alvefur <zash@zash.se>
parents: 8310
diff changeset
209 end
8310
1759491b53db mod_storage_internal: Add more extensive query support to archive:delete method
Kim Alvefur <zash@zash.se>
parents: 8309
diff changeset
210 end
8142
13e075549cb3 mod_storage_internal: Correctly calculate number of deleted items (fixes #912)
Kim Alvefur <zash@zash.se>
parents: 8089
diff changeset
211 local count = count_before - #items;
8402
469afa02947b mod_storage_internal: Skip write if no items matched a deletion query
Kim Alvefur <zash@zash.se>
parents: 8394
diff changeset
212 if count == 0 then
469afa02947b mod_storage_internal: Skip write if no items matched a deletion query
Kim Alvefur <zash@zash.se>
parents: 8394
diff changeset
213 return 0; -- No changes, skip write
469afa02947b mod_storage_internal: Skip write if no items matched a deletion query
Kim Alvefur <zash@zash.se>
parents: 8394
diff changeset
214 end
8022
05e201468f27 mod_storage_internal: Add support for removing archived items
Kim Alvefur <zash@zash.se>
parents: 8021
diff changeset
215 local ok, err = datamanager.list_store(username, host, self.store, items);
05e201468f27 mod_storage_internal: Add support for removing archived items
Kim Alvefur <zash@zash.se>
parents: 8021
diff changeset
216 if not ok then return ok, err; end
05e201468f27 mod_storage_internal: Add support for removing archived items
Kim Alvefur <zash@zash.se>
parents: 8021
diff changeset
217 return count;
05e201468f27 mod_storage_internal: Add support for removing archived items
Kim Alvefur <zash@zash.se>
parents: 8021
diff changeset
218 end
05e201468f27 mod_storage_internal: Add support for removing archived items
Kim Alvefur <zash@zash.se>
parents: 8021
diff changeset
219
5121
b5a5643f8572 core.storagemanager, mod_storage_*: "data-driver" -> "storage-provider", to allow using module:provides().
Waqas Hussain <waqas20@gmail.com>
parents: 5039
diff changeset
220 module:provides("storage", driver);