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1 | import { Model, Sequelize } from 'sequelize-typescript' | |
2 | import * as validator from 'validator' | |
3 | import { Col } from 'sequelize/types/lib/utils' | |
4 | import { literal, OrderItem } from 'sequelize' | |
5 | ||
6 | type SortType = { sortModel: string, sortValue: string } | |
7 | ||
8 | // Translate for example "-name" to [ [ 'name', 'DESC' ], [ 'id', 'ASC' ] ] | |
9 | function getSort (value: string, lastSort: OrderItem = [ 'id', 'ASC' ]): OrderItem[] { | |
10 | const { direction, field } = buildDirectionAndField(value) | |
11 | ||
12 | let finalField: string | Col | |
13 | ||
14 | if (field.toLowerCase() === 'match') { // Search | |
15 | finalField = Sequelize.col('similarity') | |
16 | } else if (field === 'videoQuotaUsed') { // Users list | |
17 | finalField = Sequelize.col('videoQuotaUsed') | |
18 | } else { | |
19 | finalField = field | |
20 | } | |
21 | ||
22 | return [ [ finalField, direction ], lastSort ] | |
23 | } | |
24 | ||
25 | function getVideoSort (value: string, lastSort: OrderItem = [ 'id', 'ASC' ]): OrderItem[] { | |
26 | const { direction, field } = buildDirectionAndField(value) | |
27 | ||
28 | if (field.toLowerCase() === 'trending') { // Sort by aggregation | |
29 | return [ | |
30 | [ Sequelize.fn('COALESCE', Sequelize.fn('SUM', Sequelize.col('VideoViews.views')), '0'), direction ], | |
31 | ||
32 | [ Sequelize.col('VideoModel.views'), direction ], | |
33 | ||
34 | lastSort | |
35 | ] | |
36 | } | |
37 | ||
38 | let finalField: string | Col | |
39 | ||
40 | // Alias | |
41 | if (field.toLowerCase() === 'match') { // Search | |
42 | finalField = Sequelize.col('similarity') | |
43 | } else { | |
44 | finalField = field | |
45 | } | |
46 | ||
47 | const firstSort = typeof finalField === 'string' | |
48 | ? finalField.split('.').concat([ direction ]) as any // FIXME: sequelize typings | |
49 | : [ finalField, direction ] | |
50 | ||
51 | return [ firstSort, lastSort ] | |
52 | } | |
53 | ||
54 | function getBlacklistSort (model: any, value: string, lastSort: OrderItem = [ 'id', 'ASC' ]): OrderItem[] { | |
55 | const [ firstSort ] = getSort(value) | |
56 | ||
57 | if (model) return [ [ literal(`"${model}.${firstSort[ 0 ]}" ${firstSort[ 1 ]}`) ], lastSort ] as any[] // FIXME: typings | |
58 | return [ firstSort, lastSort ] | |
59 | } | |
60 | ||
61 | function getFollowsSort (value: string, lastSort: OrderItem = [ 'id', 'ASC' ]): OrderItem[] { | |
62 | const { direction, field } = buildDirectionAndField(value) | |
63 | ||
64 | if (field === 'redundancyAllowed') { | |
65 | return [ | |
66 | [ 'ActorFollowing', 'Server', 'redundancyAllowed', direction ], | |
67 | lastSort | |
68 | ] | |
69 | } | |
70 | ||
71 | return getSort(value, lastSort) | |
72 | } | |
73 | ||
74 | function isOutdated (model: { createdAt: Date, updatedAt: Date }, refreshInterval: number) { | |
75 | const now = Date.now() | |
76 | const createdAtTime = model.createdAt.getTime() | |
77 | const updatedAtTime = model.updatedAt.getTime() | |
78 | ||
79 | return (now - createdAtTime) > refreshInterval && (now - updatedAtTime) > refreshInterval | |
80 | } | |
81 | ||
82 | function throwIfNotValid (value: any, validator: (value: any) => boolean, fieldName = 'value', nullable = false) { | |
83 | if (nullable && (value === null || value === undefined)) return | |
84 | ||
85 | if (validator(value) === false) { | |
86 | throw new Error(`"${value}" is not a valid ${fieldName}.`) | |
87 | } | |
88 | } | |
89 | ||
90 | function buildTrigramSearchIndex (indexName: string, attribute: string) { | |
91 | return { | |
92 | name: indexName, | |
93 | fields: [ Sequelize.literal('lower(immutable_unaccent(' + attribute + '))') as any ], | |
94 | using: 'gin', | |
95 | operator: 'gin_trgm_ops' | |
96 | } | |
97 | } | |
98 | ||
99 | function createSimilarityAttribute (col: string, value: string) { | |
100 | return Sequelize.fn( | |
101 | 'similarity', | |
102 | ||
103 | searchTrigramNormalizeCol(col), | |
104 | ||
105 | searchTrigramNormalizeValue(value) | |
106 | ) | |
107 | } | |
108 | ||
109 | function buildBlockedAccountSQL (serverAccountId: number, userAccountId?: number) { | |
110 | const blockerIds = [ serverAccountId ] | |
111 | if (userAccountId) blockerIds.push(userAccountId) | |
112 | ||
113 | const blockerIdsString = blockerIds.join(', ') | |
114 | ||
115 | return 'SELECT "targetAccountId" AS "id" FROM "accountBlocklist" WHERE "accountId" IN (' + blockerIdsString + ')' + | |
116 | ' UNION ALL ' + | |
117 | 'SELECT "account"."id" AS "id" FROM account INNER JOIN "actor" ON account."actorId" = actor.id ' + | |
118 | 'INNER JOIN "serverBlocklist" ON "actor"."serverId" = "serverBlocklist"."targetServerId" ' + | |
119 | 'WHERE "serverBlocklist"."accountId" IN (' + blockerIdsString + ')' | |
120 | } | |
121 | ||
122 | function buildServerIdsFollowedBy (actorId: any) { | |
123 | const actorIdNumber = parseInt(actorId + '', 10) | |
124 | ||
125 | return '(' + | |
126 | 'SELECT "actor"."serverId" FROM "actorFollow" ' + | |
127 | 'INNER JOIN "actor" ON actor.id = "actorFollow"."targetActorId" ' + | |
128 | 'WHERE "actorFollow"."actorId" = ' + actorIdNumber + | |
129 | ')' | |
130 | } | |
131 | ||
132 | function buildWhereIdOrUUID (id: number | string) { | |
133 | return validator.isInt('' + id) ? { id } : { uuid: id } | |
134 | } | |
135 | ||
136 | function parseAggregateResult (result: any) { | |
137 | if (!result) return 0 | |
138 | ||
139 | const total = parseInt(result + '', 10) | |
140 | if (isNaN(total)) return 0 | |
141 | ||
142 | return total | |
143 | } | |
144 | ||
145 | const createSafeIn = (model: typeof Model, stringArr: (string | number)[]) => { | |
146 | return stringArr.map(t => model.sequelize.escape('' + t)) | |
147 | .join(', ') | |
148 | } | |
149 | ||
150 | function buildLocalAccountIdsIn () { | |
151 | return literal( | |
152 | '(SELECT "account"."id" FROM "account" INNER JOIN "actor" ON "actor"."id" = "account"."actorId" AND "actor"."serverId" IS NULL)' | |
153 | ) | |
154 | } | |
155 | ||
156 | function buildLocalActorIdsIn () { | |
157 | return literal( | |
158 | '(SELECT "actor"."id" FROM "actor" WHERE "actor"."serverId" IS NULL)' | |
159 | ) | |
160 | } | |
161 | ||
162 | // --------------------------------------------------------------------------- | |
163 | ||
164 | export { | |
165 | buildBlockedAccountSQL, | |
166 | buildLocalActorIdsIn, | |
167 | SortType, | |
168 | buildLocalAccountIdsIn, | |
169 | getSort, | |
170 | getVideoSort, | |
171 | getBlacklistSort, | |
172 | createSimilarityAttribute, | |
173 | throwIfNotValid, | |
174 | buildServerIdsFollowedBy, | |
175 | buildTrigramSearchIndex, | |
176 | buildWhereIdOrUUID, | |
177 | isOutdated, | |
178 | parseAggregateResult, | |
179 | getFollowsSort, | |
180 | createSafeIn | |
181 | } | |
182 | ||
183 | // --------------------------------------------------------------------------- | |
184 | ||
185 | function searchTrigramNormalizeValue (value: string) { | |
186 | return Sequelize.fn('lower', Sequelize.fn('immutable_unaccent', value)) | |
187 | } | |
188 | ||
189 | function searchTrigramNormalizeCol (col: string) { | |
190 | return Sequelize.fn('lower', Sequelize.fn('immutable_unaccent', Sequelize.col(col))) | |
191 | } | |
192 | ||
193 | function buildDirectionAndField (value: string) { | |
194 | let field: string | |
195 | let direction: 'ASC' | 'DESC' | |
196 | ||
197 | if (value.substring(0, 1) === '-') { | |
198 | direction = 'DESC' | |
199 | field = value.substring(1) | |
200 | } else { | |
201 | direction = 'ASC' | |
202 | field = value | |
203 | } | |
204 | ||
205 | return { direction, field } | |
206 | } |