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1 | import { Model, Sequelize } from 'sequelize-typescript' | |
2 | import validator from 'validator' | |
3 | import { Col } from 'sequelize/types/lib/utils' | |
4 | import { literal, OrderItem, Op } 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 getCommentSort (value: string, lastSort: OrderItem = [ 'id', 'ASC' ]): OrderItem[] { | |
26 | const { direction, field } = buildDirectionAndField(value) | |
27 | ||
28 | if (field === 'totalReplies') { | |
29 | return [ | |
30 | [ Sequelize.literal('"totalReplies"'), direction ], | |
31 | lastSort | |
32 | ] | |
33 | } | |
34 | ||
35 | return getSort(value, lastSort) | |
36 | } | |
37 | ||
38 | function getVideoSort (value: string, lastSort: OrderItem = [ 'id', 'ASC' ]): OrderItem[] { | |
39 | const { direction, field } = buildDirectionAndField(value) | |
40 | ||
41 | if (field.toLowerCase() === 'trending') { // Sort by aggregation | |
42 | return [ | |
43 | [ Sequelize.fn('COALESCE', Sequelize.fn('SUM', Sequelize.col('VideoViews.views')), '0'), direction ], | |
44 | ||
45 | [ Sequelize.col('VideoModel.views'), direction ], | |
46 | ||
47 | lastSort | |
48 | ] | |
49 | } | |
50 | ||
51 | let finalField: string | Col | |
52 | ||
53 | // Alias | |
54 | if (field.toLowerCase() === 'match') { // Search | |
55 | finalField = Sequelize.col('similarity') | |
56 | } else { | |
57 | finalField = field | |
58 | } | |
59 | ||
60 | const firstSort = typeof finalField === 'string' | |
61 | ? finalField.split('.').concat([ direction ]) as any // FIXME: sequelize typings | |
62 | : [ finalField, direction ] | |
63 | ||
64 | return [ firstSort, lastSort ] | |
65 | } | |
66 | ||
67 | function getBlacklistSort (model: any, value: string, lastSort: OrderItem = [ 'id', 'ASC' ]): OrderItem[] { | |
68 | const [ firstSort ] = getSort(value) | |
69 | ||
70 | if (model) return [ [ literal(`"${model}.${firstSort[0]}" ${firstSort[1]}`) ], lastSort ] as any[] // FIXME: typings | |
71 | return [ firstSort, lastSort ] | |
72 | } | |
73 | ||
74 | function getFollowsSort (value: string, lastSort: OrderItem = [ 'id', 'ASC' ]): OrderItem[] { | |
75 | const { direction, field } = buildDirectionAndField(value) | |
76 | ||
77 | if (field === 'redundancyAllowed') { | |
78 | return [ | |
79 | [ 'ActorFollowing', 'Server', 'redundancyAllowed', direction ], | |
80 | lastSort | |
81 | ] | |
82 | } | |
83 | ||
84 | return getSort(value, lastSort) | |
85 | } | |
86 | ||
87 | function isOutdated (model: { createdAt: Date, updatedAt: Date }, refreshInterval: number) { | |
88 | const now = Date.now() | |
89 | const createdAtTime = model.createdAt.getTime() | |
90 | const updatedAtTime = model.updatedAt.getTime() | |
91 | ||
92 | return (now - createdAtTime) > refreshInterval && (now - updatedAtTime) > refreshInterval | |
93 | } | |
94 | ||
95 | function throwIfNotValid (value: any, validator: (value: any) => boolean, fieldName = 'value', nullable = false) { | |
96 | if (nullable && (value === null || value === undefined)) return | |
97 | ||
98 | if (validator(value) === false) { | |
99 | throw new Error(`"${value}" is not a valid ${fieldName}.`) | |
100 | } | |
101 | } | |
102 | ||
103 | function buildTrigramSearchIndex (indexName: string, attribute: string) { | |
104 | return { | |
105 | name: indexName, | |
106 | fields: [ Sequelize.literal('lower(immutable_unaccent(' + attribute + '))') as any ], | |
107 | using: 'gin', | |
108 | operator: 'gin_trgm_ops' | |
109 | } | |
110 | } | |
111 | ||
112 | function createSimilarityAttribute (col: string, value: string) { | |
113 | return Sequelize.fn( | |
114 | 'similarity', | |
115 | ||
116 | searchTrigramNormalizeCol(col), | |
117 | ||
118 | searchTrigramNormalizeValue(value) | |
119 | ) | |
120 | } | |
121 | ||
122 | function buildBlockedAccountSQL (blockerIds: number[]) { | |
123 | const blockerIdsString = blockerIds.join(', ') | |
124 | ||
125 | return 'SELECT "targetAccountId" AS "id" FROM "accountBlocklist" WHERE "accountId" IN (' + blockerIdsString + ')' + | |
126 | ' UNION ALL ' + | |
127 | 'SELECT "account"."id" AS "id" FROM account INNER JOIN "actor" ON account."actorId" = actor.id ' + | |
128 | 'INNER JOIN "serverBlocklist" ON "actor"."serverId" = "serverBlocklist"."targetServerId" ' + | |
129 | 'WHERE "serverBlocklist"."accountId" IN (' + blockerIdsString + ')' | |
130 | } | |
131 | ||
132 | function buildBlockedAccountSQLOptimized (columnNameJoin: string, blockerIds: number[]) { | |
133 | const blockerIdsString = blockerIds.join(', ') | |
134 | ||
135 | return [ | |
136 | literal( | |
137 | `NOT EXISTS (` + | |
138 | ` SELECT 1 FROM "accountBlocklist" ` + | |
139 | ` WHERE "targetAccountId" = ${columnNameJoin} ` + | |
140 | ` AND "accountId" IN (${blockerIdsString})` + | |
141 | `)` | |
142 | ), | |
143 | ||
144 | literal( | |
145 | `NOT EXISTS (` + | |
146 | ` SELECT 1 FROM "account" ` + | |
147 | ` INNER JOIN "actor" ON account."actorId" = actor.id ` + | |
148 | ` INNER JOIN "serverBlocklist" ON "actor"."serverId" = "serverBlocklist"."targetServerId" ` + | |
149 | ` WHERE "account"."id" = ${columnNameJoin} ` + | |
150 | ` AND "serverBlocklist"."accountId" IN (${blockerIdsString})` + | |
151 | `)` | |
152 | ) | |
153 | ] | |
154 | } | |
155 | ||
156 | function buildServerIdsFollowedBy (actorId: any) { | |
157 | const actorIdNumber = parseInt(actorId + '', 10) | |
158 | ||
159 | return '(' + | |
160 | 'SELECT "actor"."serverId" FROM "actorFollow" ' + | |
161 | 'INNER JOIN "actor" ON actor.id = "actorFollow"."targetActorId" ' + | |
162 | 'WHERE "actorFollow"."actorId" = ' + actorIdNumber + | |
163 | ')' | |
164 | } | |
165 | ||
166 | function buildWhereIdOrUUID (id: number | string) { | |
167 | return validator.isInt('' + id) ? { id } : { uuid: id } | |
168 | } | |
169 | ||
170 | function parseAggregateResult (result: any) { | |
171 | if (!result) return 0 | |
172 | ||
173 | const total = parseInt(result + '', 10) | |
174 | if (isNaN(total)) return 0 | |
175 | ||
176 | return total | |
177 | } | |
178 | ||
179 | const createSafeIn = (model: typeof Model, stringArr: (string | number)[]) => { | |
180 | return stringArr.map(t => { | |
181 | return t === null | |
182 | ? null | |
183 | : model.sequelize.escape('' + t) | |
184 | }).join(', ') | |
185 | } | |
186 | ||
187 | function buildLocalAccountIdsIn () { | |
188 | return literal( | |
189 | '(SELECT "account"."id" FROM "account" INNER JOIN "actor" ON "actor"."id" = "account"."actorId" AND "actor"."serverId" IS NULL)' | |
190 | ) | |
191 | } | |
192 | ||
193 | function buildLocalActorIdsIn () { | |
194 | return literal( | |
195 | '(SELECT "actor"."id" FROM "actor" WHERE "actor"."serverId" IS NULL)' | |
196 | ) | |
197 | } | |
198 | ||
199 | function buildDirectionAndField (value: string) { | |
200 | let field: string | |
201 | let direction: 'ASC' | 'DESC' | |
202 | ||
203 | if (value.substring(0, 1) === '-') { | |
204 | direction = 'DESC' | |
205 | field = value.substring(1) | |
206 | } else { | |
207 | direction = 'ASC' | |
208 | field = value | |
209 | } | |
210 | ||
211 | return { direction, field } | |
212 | } | |
213 | ||
214 | function searchAttribute (sourceField?: string, targetField?: string) { | |
215 | if (!sourceField) return {} | |
216 | ||
217 | return { | |
218 | [targetField]: { | |
219 | [Op.iLike]: `%${sourceField}%` | |
220 | } | |
221 | } | |
222 | } | |
223 | ||
224 | // --------------------------------------------------------------------------- | |
225 | ||
226 | export { | |
227 | buildBlockedAccountSQL, | |
228 | buildBlockedAccountSQLOptimized, | |
229 | buildLocalActorIdsIn, | |
230 | SortType, | |
231 | buildLocalAccountIdsIn, | |
232 | getSort, | |
233 | getCommentSort, | |
234 | getVideoSort, | |
235 | getBlacklistSort, | |
236 | createSimilarityAttribute, | |
237 | throwIfNotValid, | |
238 | buildServerIdsFollowedBy, | |
239 | buildTrigramSearchIndex, | |
240 | buildWhereIdOrUUID, | |
241 | isOutdated, | |
242 | parseAggregateResult, | |
243 | getFollowsSort, | |
244 | buildDirectionAndField, | |
245 | createSafeIn, | |
246 | searchAttribute | |
247 | } | |
248 | ||
249 | // --------------------------------------------------------------------------- | |
250 | ||
251 | function searchTrigramNormalizeValue (value: string) { | |
252 | return Sequelize.fn('lower', Sequelize.fn('immutable_unaccent', value)) | |
253 | } | |
254 | ||
255 | function searchTrigramNormalizeCol (col: string) { | |
256 | return Sequelize.fn('lower', Sequelize.fn('immutable_unaccent', Sequelize.col(col))) | |
257 | } |