prosody-modules
152439ca92ee
mod_storage_xmlarchive/mod_storage_xmlarchive.lua

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mod_storage_xmlarchive/mod_storage_xmlarchive.lua @ 1793:152439ca92ee

mod_storage_xmlarchive: Remove redundant stream header
author Kim Alvefur <zash@zash.se>
date Thu, 27 Aug 2015 12:14:40 +0200
parent 1765:1a7867eaac9e
child 1819:1b08597b5e6f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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a077dcf1bb36 mod_storage_xmlarchive: Add (c) header
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1 -- mod_storage_xmlarchive
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2 -- Copyright (C) 2015 Kim Alvefur
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3 --
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4 -- This file is MIT/X11 licensed.
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5 --
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6 -- luacheck: ignore unused self
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7
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8 local dm = require "core.storagemanager".olddm;
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9 local hmac_sha256 = require"util.hashes".hmac_sha256;
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10 local st = require"util.stanza";
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11 local dt = require"util.datetime";
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12 local new_stream = require "util.xmppstream".new;
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13 local empty = {};
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14
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15 local function fallocate(f, offset, len)
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16 -- This assumes that current position == offset
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17 local fake_data = (" "):rep(len);
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18 local ok, msg = f:write(fake_data);
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19 if not ok then
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20 return ok, msg;
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21 end
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22 return f:seek("set", offset);
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23 end;
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24
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25 pcall(function()
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26 local pposix = require "util.pposix";
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27 fallocate = pposix.fallocate or fallocate;
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28 end);
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29
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30 local archive = {};
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31 local archive_mt = { __index = archive };
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32
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33 function archive:append(username, _, data, when, with)
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34 if type(when) ~= "number" then
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35 when, with, data = data, when, with;
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36 end
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37 if getmetatable(data) ~= st.stanza_mt then
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38 module:log("error", "Attempt to store non-stanza object, traceback: %s", debug.traceback());
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39 return nil, "unsupported-datatype";
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40 end
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41
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42 username = username or "@";
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43 data = tostring(data) .. "\n";
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44
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45 local day = dt.date(when);
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46 local filename = dm.getpath(username.."@"..day, module.host, self.store, "xml", true);
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47
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48 local ok, err;
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49 local f = io.open(filename, "r+");
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50 if not f then
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51 f, err = io.open(filename, "w"); if not f then return nil, err; end
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52 ok, err = dm.list_append(username, module.host, self.store, day);
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53 if not ok then return nil, err; end
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54 end
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55
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56 local offset = f:seek("end"); -- Seek to the end and collect current file length
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57 -- then make sure there is enough free space for what we're about to add
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58 ok, err = fallocate(f, offset, #data); if not ok then return nil, err; end
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59 ok, err = f:write(data); if not ok then return nil, err; end
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60 ok, err = f:close(); if not ok then return nil, err; end
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61
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62 local id = day .. "-" .. hmac_sha256(username.."@"..day.."+"..offset, data, true):sub(-16);
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63 ok, err = dm.list_append(username.."@"..day, module.host, self.store, { id = id, when = dt.datetime(when), with = with, offset = offset, length = #data });
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64 if not ok then return nil, err; end
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65 return id;
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66 end
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67
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68 function archive:find(username, query)
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69 username = username or "@";
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70 query = query or empty;
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71
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72 local result;
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73 local function cb(_, stanza)
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74 if result then
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75 module:log("warn", "Multiple items in chunk");
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76 end
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77 result = stanza;
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78 end
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79
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80 local stream_sess = { notopen = true };
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81 local stream = new_stream(stream_sess, { handlestanza = cb, stream_ns = "jabber:client"});
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82 local dates = dm.list_load(username, module.host, self.store) or empty;
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83 local function reset_stream()
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84 stream:reset();
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85 stream_sess.notopen = true;
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86 stream:feed(st.stanza("stream", { xmlns = "jabber:client" }):top_tag());
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87 stream_sess.notopen = nil;
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88 end
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89 reset_stream();
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90
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91 local limit = query.limit;
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92 local start_day, step, last_day = 1, 1, #dates;
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93 local count = 0;
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94 local rev = query.reverse;
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95 local in_range = not (query.after or query.before);
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96 if query.after or query.start then
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97 local d = query.after and query.after:sub(1, 10) or dt.date(query.start);
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98 for i = 1, #dates do
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99 if dates[i] == d then
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100 start_day = i; break;
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101 end
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102 end
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103 end
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104 if query.before or query["end"] then
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105 local d = query.before and query.before:sub(1, 10) or dt.date(query["end"]);
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106 for i = #dates, 1, -1 do
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107 if dates[i] == d then
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108 last_day = i; break;
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109 end
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110 end
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111 end
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112 if rev then
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113 start_day, step, last_day = last_day, -step, start_day;
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114 end
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115 local items, xmlfile;
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116 local first_item, last_item;
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117
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118 return function ()
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119 if limit and count >= limit then xmlfile:close() return; end
1726
160c35d2a5a2 mod_storage_xmlarchive: Improve logging of parse errors
Kim Alvefur <zash@zash.se>
parents: 1690
diff changeset
120 local filename;
1690
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
121
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
122 for d = start_day, last_day, step do
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
123 if d ~= start_day or not items then
1728
a51beeb5aecf mod_storage_xmlarchive: Adjust wording in log message
Kim Alvefur <zash@zash.se>
parents: 1727
diff changeset
124 module:log("debug", "Loading items from %s", dates[d]);
1690
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
125 start_day = d;
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
126 items = dm.list_load(username .. "@" .. dates[d], module.host, self.store) or empty;
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
127 if not rev then
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
128 first_item, last_item = 1, #items;
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
129 else
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
130 first_item, last_item = #items, 1;
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
131 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
132 local ferr;
1726
160c35d2a5a2 mod_storage_xmlarchive: Improve logging of parse errors
Kim Alvefur <zash@zash.se>
parents: 1690
diff changeset
133 filename = dm.getpath(username .. "@" .. dates[d], module.host, self.store, "xml");
160c35d2a5a2 mod_storage_xmlarchive: Improve logging of parse errors
Kim Alvefur <zash@zash.se>
parents: 1690
diff changeset
134 xmlfile, ferr = io.open(filename);
1690
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
135 if not xmlfile then
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
136 module:log("error", "Error: %s", ferr);
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
137 return;
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
138 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
139 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
140
1741
07ceaf5f6f0d mod_storage_xmlarchive: Optimize access to variables used in inner loop
Kim Alvefur <zash@zash.se>
parents: 1740
diff changeset
141 local q_with, q_start, q_end = query.with, query.start, query["end"];
1690
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
142 for i = first_item, last_item, step do
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
143 local item = items[i];
1741
07ceaf5f6f0d mod_storage_xmlarchive: Optimize access to variables used in inner loop
Kim Alvefur <zash@zash.se>
parents: 1740
diff changeset
144 local i_when, i_with = item.when, item.with;
1742
ec50cecc9318 mod_storage_xmlarchive: Store timestamps in text form, I don't trust numeric timestamps in Lua
Kim Alvefur <zash@zash.se>
parents: 1741
diff changeset
145 if type(i_when) == "string" then
ec50cecc9318 mod_storage_xmlarchive: Store timestamps in text form, I don't trust numeric timestamps in Lua
Kim Alvefur <zash@zash.se>
parents: 1741
diff changeset
146 i_when = dt.parse(i_when);
ec50cecc9318 mod_storage_xmlarchive: Store timestamps in text form, I don't trust numeric timestamps in Lua
Kim Alvefur <zash@zash.se>
parents: 1741
diff changeset
147 end
ec50cecc9318 mod_storage_xmlarchive: Store timestamps in text form, I don't trust numeric timestamps in Lua
Kim Alvefur <zash@zash.se>
parents: 1741
diff changeset
148 if type(i_when) ~= "number" then
ec50cecc9318 mod_storage_xmlarchive: Store timestamps in text form, I don't trust numeric timestamps in Lua
Kim Alvefur <zash@zash.se>
parents: 1741
diff changeset
149 module:log("warn", "data[%q][%d].when is invalid", dates[d], i);
ec50cecc9318 mod_storage_xmlarchive: Store timestamps in text form, I don't trust numeric timestamps in Lua
Kim Alvefur <zash@zash.se>
parents: 1741
diff changeset
150 break;
ec50cecc9318 mod_storage_xmlarchive: Store timestamps in text form, I don't trust numeric timestamps in Lua
Kim Alvefur <zash@zash.se>
parents: 1741
diff changeset
151 end
1690
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
152 if not item then
1730
e02af2b32f30 mod_storage_xmlarchive: Increase severity of log message regarding unexpected missing items
Kim Alvefur <zash@zash.se>
parents: 1729
diff changeset
153 module:log("warn", "data[%q][%d] is nil", dates[d], i);
1690
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
154 break;
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
155 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
156 if xmlfile and in_range
1741
07ceaf5f6f0d mod_storage_xmlarchive: Optimize access to variables used in inner loop
Kim Alvefur <zash@zash.se>
parents: 1740
diff changeset
157 and (not q_with or i_with == q_with)
07ceaf5f6f0d mod_storage_xmlarchive: Optimize access to variables used in inner loop
Kim Alvefur <zash@zash.se>
parents: 1740
diff changeset
158 and (not q_start or i_when >= q_start)
07ceaf5f6f0d mod_storage_xmlarchive: Optimize access to variables used in inner loop
Kim Alvefur <zash@zash.se>
parents: 1740
diff changeset
159 and (not q_end or i_when <= q_end) then
1690
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
160 count = count + 1;
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
161 first_item = i + step;
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
162
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
163 xmlfile:seek("set", item.offset);
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
164 local data = xmlfile:read(item.length);
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
165 local ok, err = stream:feed(data);
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
166 if not ok then
1726
160c35d2a5a2 mod_storage_xmlarchive: Improve logging of parse errors
Kim Alvefur <zash@zash.se>
parents: 1690
diff changeset
167 module:log("warn", "Parse error in %s at %d+%d: %s", filename, item.offset, item.length, err);
1727
8f12afb633ec mod_storage_xmlarchive: Attempt to recover after parse failures
Kim Alvefur <zash@zash.se>
parents: 1726
diff changeset
168 reset_stream();
1690
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
169 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
170 if result then
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
171 local stanza = result;
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
172 result = nil;
1752
3f3689a16133 mod_storage_xmlarchive: Return 'when' as number
Kim Alvefur <zash@zash.se>
parents: 1742
diff changeset
173 return item.id, stanza, i_when, i_with;
1690
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
174 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
175 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
176 if (rev and item.id == query.after) or
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
177 (not rev and item.id == query.before) then
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
178 in_range = false;
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
179 limit = count;
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
180 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
181 if (rev and item.id == query.before) or
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
182 (not rev and item.id == query.after) then
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
183 in_range = true;
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
184 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
185 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
186 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
187 if xmlfile then
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
188 xmlfile:close();
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
189 xmlfile = nil;
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
190 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
191 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
192 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
193
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
194 function archive:delete(username, query)
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
195 username = username or "@";
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
196 query = query or empty;
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
197 if query.with or query.start or query.after then
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
198 return nil, "not-implemented"; -- Only trimming the oldest messages
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
199 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
200 local before = query.before or query["end"] or "9999-12-31";
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
201 if type(before) == "number" then before = dt.date(before); else before = before:sub(1, 10); end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
202 local dates = dm.list_load(username, module.host, self.store) or empty;
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
203 local remaining_dates = {};
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
204 for d = 1, #dates do
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
205 if dates[d] >= before then
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
206 table.insert(remaining_dates, dates[d]);
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
207 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
208 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
209 table.sort(remaining_dates);
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
210 local ok, err = dm.list_store(username, module.host, self.store, remaining_dates);
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
211 if not ok then return ok, err; end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
212 for d = 1, #dates do
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
213 if dates[d] < before then
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
214 os.remove(dm.getpath(username .. "@" .. dates[d], module.host, self.store, "list"));
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
215 os.remove(dm.getpath(username .. "@" .. dates[d], module.host, self.store, "xml"));
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
216 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
217 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
218 return true;
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
219 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
220
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
221 local provider = {};
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
222 function provider:open(store, typ)
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
223 if typ ~= "archive" then return nil, "unsupported-store"; end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
224 return setmetatable({ store = store }, archive_mt);
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
225 end
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
226
8c0fbc685364 mod_storage_xmlarchive: New stanza archive-only storage module backed by plain text files
Kim Alvefur <zash@zash.se>
parents:
diff changeset
227 module:provides("storage", provider);