prosody-modules
b4632d5f840b
mod_storage_s3/mod_storage_s3.lua

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mod_storage_s3/mod_storage_s3.lua @ 5718:b4632d5f840b

mod_storage_s3: Move request signing into a net.http hook
author Kim Alvefur <zash@zash.se>
date Sat, 11 Nov 2023 17:01:29 +0100
parent 5699:799f69a5921a
child 5719:66986f5271c3
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1 local http = require "prosody.net.http";
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2 local array = require "prosody.util.array";
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3 local async = require "prosody.util.async";
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4 local dt = require "prosody.util.datetime";
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5 local hashes = require "prosody.util.hashes";
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6 local httputil = require "prosody.util.http";
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7 local uuid = require "prosody.util.uuid";
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8 local it = require "prosody.util.iterators";
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9 local jid = require "prosody.util.jid";
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10 local json = require "prosody.util.json";
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11 local st = require "prosody.util.stanza";
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12 local xml = require "prosody.util.xml";
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13 local url = require "socket.url";
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14
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15 local new_uuid = uuid.v7 or uuid.generate;
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16 local hmac_sha256 = hashes.hmac_sha256;
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17 local sha256 = hashes.sha256;
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18
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19 local driver = {};
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20
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21 local bucket = module:get_option_string("s3_bucket", "prosody");
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22 local base_uri = module:get_option_string("s3_base_uri", "http://localhost:9000");
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23 local region = module:get_option_string("s3_region", "us-east-1");
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24
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25 local access_key = module:get_option_string("s3_access_key");
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26 local secret_key = module:get_option_string("s3_secret_key");
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28 local aws4_format = "AWS4-HMAC-SHA256 Credential=%s/%s, SignedHeaders=%s, Signature=%s";
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29
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30 local function aws_auth(event)
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31 local request, options = event.request, event.options;
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32 local method = options.method or "GET";
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33 local query = options.query;
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34 local payload = options.body;
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35
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36 local payload_type = nil;
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37 if st.is_stanza(payload) then
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38 payload_type = "application/xml";
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39 payload = tostring(payload);
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40 elseif payload ~= nil then
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41 payload_type = "application/json";
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42 payload = json.encode(payload);
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43 end
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44 options.body = payload;
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46 local payload_hash = sha256(payload or "", true);
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47
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48 local now = os.time();
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49 local aws_datetime = os.date("!%Y%m%dT%H%M%SZ", now);
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50 local aws_date = os.date("!%Y%m%d", now);
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51
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52 local headers = {
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53 ["Accept"] = "*/*";
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54 ["Authorization"] = nil;
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55 ["Content-Type"] = payload_type;
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56 ["Host"] = request.authority;
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57 ["User-Agent"] = "Prosody XMPP Server";
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58 ["X-Amz-Content-Sha256"] = payload_hash;
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59 ["X-Amz-Date"] = aws_datetime;
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60 };
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61
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62 local canonical_uri = url.build({ path = request.path });
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63 local canonical_query = "";
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64 local canonical_headers = array();
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65 local signed_headers = array()
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66
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67 if query then
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68 local sorted_query = array();
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69 for name, value in it.sorted_pairs(query) do
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70 sorted_query:push({ name = name; value = value });
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71 end
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72 sorted_query:sort(function (a,b) return a.name < b.name end)
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73 canonical_query = httputil.formencode(sorted_query):gsub("%%%x%x", string.upper);
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74 request.query = canonical_query;
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75 end
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76
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77 for header_name, header_value in it.sorted_pairs(headers) do
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78 header_name = header_name:lower();
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79 canonical_headers:push(header_name .. ":" .. header_value .. "\n");
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80 signed_headers:push(header_name);
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81 end
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82
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83 canonical_headers = canonical_headers:concat();
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84 signed_headers = signed_headers:concat(";");
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85
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86 local scope = aws_date .. "/" .. region .. "/s3/aws4_request";
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87
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88 local canonical_request = method .. "\n"
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89 .. canonical_uri .. "\n"
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90 .. canonical_query .. "\n"
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91 .. canonical_headers .. "\n"
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92 .. signed_headers .. "\n"
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93 .. payload_hash;
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94
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95 local signature_payload = "AWS4-HMAC-SHA256" .. "\n" .. aws_datetime .. "\n" .. scope .. "\n" .. sha256(canonical_request, true);
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96
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97 -- This can be cached?
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98 local date_key = hmac_sha256("AWS4" .. secret_key, aws_date);
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99 local date_region_key = hmac_sha256(date_key, region);
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100 local date_region_service_key = hmac_sha256(date_region_key, "s3");
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101 local signing_key = hmac_sha256(date_region_service_key, "aws4_request");
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102
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103 local signature = hmac_sha256(signing_key, signature_payload, true);
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104
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105 headers["Authorization"] = string.format(aws4_format, access_key, scope, signed_headers, signature);
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106
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107 options.headers = headers;
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108 end
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109
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110 function driver:open(store, typ)
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111 local mt = self[typ or "keyval"]
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112 if not mt then
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113 return nil, "unsupported-store";
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114 end
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115 local httpclient = http.new({});
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116 httpclient.events.add_handler("pre-request", aws_auth);
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117 return setmetatable({ store = store; bucket = bucket; type = typ; http = httpclient }, mt);
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118 end
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119
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120 local keyval = { };
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121 driver.keyval = { __index = keyval; __name = module.name .. " keyval store" };
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122
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123 local function new_request(self, method, path, query, payload)
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124 local request = url.parse(base_uri);
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diff changeset
125 request.path = path;
b4632d5f840b mod_storage_s3: Move request signing into a net.http hook
Kim Alvefur <zash@zash.se>
parents: 5699
diff changeset
126
b4632d5f840b mod_storage_s3: Move request signing into a net.http hook
Kim Alvefur <zash@zash.se>
parents: 5699
diff changeset
127 return self.http:request(url.build(request), { method = method; body = payload; query = query });
5692
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
128 end
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
129
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
130 -- coerce result back into Prosody data type
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
131 local function on_result(response)
5699
799f69a5921a mod_storage_s3: Treat 404 to GET as a signal for empty data
Kim Alvefur <zash@zash.se>
parents: 5698
diff changeset
132 if response.code == 404 and response.request.method == "GET" then
799f69a5921a mod_storage_s3: Treat 404 to GET as a signal for empty data
Kim Alvefur <zash@zash.se>
parents: 5698
diff changeset
133 return nil;
799f69a5921a mod_storage_s3: Treat 404 to GET as a signal for empty data
Kim Alvefur <zash@zash.se>
parents: 5698
diff changeset
134 end
5696
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
135 if response.code >= 400 then
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
136 error(response.body);
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
137 end
5692
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
138 local content_type = response.headers["content-type"];
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
139 if content_type == "application/json" then
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
140 return json.decode(response.body);
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
141 elseif content_type == "application/xml" then
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
142 return xml.parse(response.body);
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
143 elseif content_type == "application/x-www-form-urlencoded" then
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
144 return httputil.formdecode(response.body);
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
145 else
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
146 response.log("warn", "Unknown response data type %s", content_type);
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
147 return response.body;
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
148 end
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
149 end
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
150
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
151 function keyval:_path(key)
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
152 return url.build_path({
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
153 is_absolute = true;
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
154 bucket;
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
155 jid.escape(module.host);
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
156 jid.escape(self.store);
5698
17ea26cf7259 mod_storage_s3: Use '@' as placeholder for empty (host) store slots
Kim Alvefur <zash@zash.se>
parents: 5697
diff changeset
157 jid.escape(key or "@");
5692
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
158 })
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
159 end
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
160
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
161 function keyval:get(user)
5718
b4632d5f840b mod_storage_s3: Move request signing into a net.http hook
Kim Alvefur <zash@zash.se>
parents: 5699
diff changeset
162 return async.wait_for(new_request(self, "GET", self:_path(user)):next(on_result));
5692
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
163 end
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
164
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
165 function keyval:set(user, data)
5694
c8322c64a548 mod_storage_s3: Implement keyvalue deletion
Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
166
c8322c64a548 mod_storage_s3: Implement keyvalue deletion
Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
167 if data == nil or (type(data) == "table" and next(data) == nil) then
5718
b4632d5f840b mod_storage_s3: Move request signing into a net.http hook
Kim Alvefur <zash@zash.se>
parents: 5699
diff changeset
168 return async.wait_for(new_request(self, "DELETE", self:_path(user)));
5694
c8322c64a548 mod_storage_s3: Implement keyvalue deletion
Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
169 end
c8322c64a548 mod_storage_s3: Implement keyvalue deletion
Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
170
5718
b4632d5f840b mod_storage_s3: Move request signing into a net.http hook
Kim Alvefur <zash@zash.se>
parents: 5699
diff changeset
171 return async.wait_for(new_request(self, "PUT", self:_path(user), nil, data));
5692
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
172 end
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
173
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
174 function keyval:users()
5695
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
175 local bucket_path = url.build_path({ is_absolute = true; bucket; is_directory = true });
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
176 local prefix = url.build_path({ jid.escape(module.host); jid.escape(self.store); is_directory = true });
5718
b4632d5f840b mod_storage_s3: Move request signing into a net.http hook
Kim Alvefur <zash@zash.se>
parents: 5699
diff changeset
177 local list_result, err = async.wait_for(new_request(self, "GET", bucket_path, { prefix = prefix }))
5695
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
178 if err or list_result.code ~= 200 then
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
179 return nil, err;
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
180 end
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
181 local list_bucket_result = xml.parse(list_result.body);
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
182 if list_bucket_result:get_child_text("IsTruncated") == "true" then
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
183 local max_keys = list_bucket_result:get_child_text("MaxKeys");
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
184 module:log("warn", "Paging truncated results not implemented, max %s %s returned", max_keys, self.store);
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
185 end
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
186 local keys = array();
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
187 for content in list_bucket_result:childtags("Contents") do
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
188 local key = url.parse_path(content:get_child_text("Key"));
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
189 keys:push(jid.unescape(key[3]));
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
190 end
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
191 return function()
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
192 return keys:pop();
c74a96dc5d58 mod_storage_s3: Implement iteration of keyvalue keys (users usually)
Kim Alvefur <zash@zash.se>
parents: 5694
diff changeset
193 end
5692
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
194 end
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
Kim Alvefur <zash@zash.se>
parents:
diff changeset
195
5696
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
196 local archive = {};
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
197 driver.archive = { __index = archive };
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
198
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
199 archive.caps = {
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
200 };
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
201
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
202 function archive:_path(username, date, when, with, key)
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
203 return url.build_path({
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
204 is_absolute = true;
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
205 bucket;
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
206 jid.escape(module.host);
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
207 jid.escape(self.store);
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
208 jid.escape(username);
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
209 jid.escape(jid.prep(with));
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
210 date or dt.date(when);
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
211 key;
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
212 })
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
213 end
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
214
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
215
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
216 -- PUT .../with/when/id
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
217 function archive:append(username, key, value, when, with)
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
218 local wrapper = st.stanza("wrapper");
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
219 -- Minio had trouble with timestamps, probably the ':' characters, in paths.
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
220 wrapper:tag("delay", { xmlns = "urn:xmpp:delay"; stamp = dt.datetime(when) }):up();
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
221 wrapper:add_direct_child(value);
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
222 key = key or new_uuid();
5718
b4632d5f840b mod_storage_s3: Move request signing into a net.http hook
Kim Alvefur <zash@zash.se>
parents: 5699
diff changeset
223 return async.wait_for(new_request(self, "PUT", self:_path(username, nil, when, with, key), nil, wrapper):next(function(r)
5696
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
224 if r.code == 200 then
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
225 return key;
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
226 else
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
227 error(r.body);
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
228 end
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
229 end));
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
230 end
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
231
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
232 function archive:find(username, query)
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
233 local bucket_path = url.build_path({ is_absolute = true; bucket; is_directory = true });
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
234 local prefix = { jid.escape(module.host); jid.escape(self.store); is_directory = true };
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
235 table.insert(prefix, jid.escape(username or "@"));
5697
51d0311747fa mod_storage_s3: Handle archive query without parameters
Kim Alvefur <zash@zash.se>
parents: 5696
diff changeset
236 if not query then
51d0311747fa mod_storage_s3: Handle archive query without parameters
Kim Alvefur <zash@zash.se>
parents: 5696
diff changeset
237 query = {};
51d0311747fa mod_storage_s3: Handle archive query without parameters
Kim Alvefur <zash@zash.se>
parents: 5696
diff changeset
238 end
5696
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
239 if query["with"] then
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
240 table.insert(prefix, sha256(jid.prep(query["with"]), true):sub(1,24));
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
241 if query["start"] and query["end"] and dt.date(query["start"]) == dt.date(query["end"]) then
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
242 table.insert(prefix, sha256(jid.prep(query["with"]), true):sub(1,24));
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
243 end
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
244 end
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
245
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
246 prefix = url.build_path(prefix);
5718
b4632d5f840b mod_storage_s3: Move request signing into a net.http hook
Kim Alvefur <zash@zash.se>
parents: 5699
diff changeset
247 local list_result, err = async.wait_for(new_request(self, "GET", bucket_path, {
5696
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
248 prefix = prefix;
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
249 ["max-keys"] = query["max"] and tostring(query["max"]);
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
250 }));
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
251 if err or list_result.code ~= 200 then
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
252 return nil, err;
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
253 end
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
254 local list_bucket_result = xml.parse(list_result.body);
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
255 if list_bucket_result:get_child_text("IsTruncated") == "true" then
b17ba149b7c5 mod_storage_s3: Implement Archive storage
Kim Alvefur <zash@zash.se>
parents: 5695
diff changeset
256 local max_keys = list_bucket_result:get_child_text("MaxKeys");
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257 module:log("warn", "Paging truncated results not implemented, max %s %s returned", max_keys, self.store);
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258 end
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259 local keys = array();
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260 local iterwrap = function(...)
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261 return ...;
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262 end
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263 if query["reverse"] then
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264 query["before"], query["after"] = query["after"], query["before"];
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265 iterwrap = it.reverse;
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266 end
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267 local found = not query["after"];
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268 for content in iterwrap(list_bucket_result:childtags("Contents")) do
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269 local key = url.parse_path(content:get_child_text("Key"));
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270 if found and query["before"] == key[6] then
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271 break
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272 end
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273 if (not query["with"] or query["with"] == jid.unescape(key[5]))
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274 and (not query["start"] or dt.date(query["start"]) >= key[6])
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275 and (not query["end"] or dt.date(query["end"]) <= key[6])
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276 and found then
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277 keys:push({ key = key[6]; date = key[5]; with = jid.unescape(key[4]) });
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278 end
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279 if not found and key[6] == query["after"] then
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280 found = not found
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281 end
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282 end
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283 local i = 0;
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284 return function()
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285 i = i + 1;
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286 local item = keys[i];
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287 if item == nil then
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288 return nil;
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289 end
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290 -- luacheck: ignore 431/err
5718
b4632d5f840b mod_storage_s3: Move request signing into a net.http hook
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291 local value, err = async.wait_for(new_request(self, "GET", self:_path(username or "@", item.date, nil, item.with, item.key)):next(on_result));
5696
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292 if not value then
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293 module:log("error", "%s", err);
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294 return nil;
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295 end
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296 local delay = value:get_child("delay", "urn:xmpp:delay");
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297
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298 return item.key, value.tags[2], dt.parse(delay.attr.stamp), item.with;
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299 end
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300 end
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301
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302 function archive:users()
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303 return it.unique(keyval.users(self));
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304 end
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305
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306 --[[ TODO
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307 function archive:delete(username, query)
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308 return nil, "not-implemented";
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309 end
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310 --]]
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311
5692
30f91daa40b4 mod_storage_s3: Beginnings of an experimental S3 storage driver
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parents:
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312 module:provides("storage", driver);