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authorChocobozzz <me@florianbigard.com>2018-04-17 14:01:06 +0200
committerChocobozzz <me@florianbigard.com>2018-04-17 14:04:34 +0200
commit4195cd2bc5046d4cdf1c677c27cd41f427d7a13a (patch)
tree3300258d96a427da29cc4785686d741e336102bb /server/lib/redis.ts
parentcff8b272b1631661b8d5f5f4b59bd534ad8c86ca (diff)
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Add redis cache to feed route
Diffstat (limited to 'server/lib/redis.ts')
-rw-r--r--server/lib/redis.ts57
1 files changed, 55 insertions, 2 deletions
diff --git a/server/lib/redis.ts b/server/lib/redis.ts
index 41f4c9869..1e7c0a821 100644
--- a/server/lib/redis.ts
+++ b/server/lib/redis.ts
@@ -1,7 +1,14 @@
1import * as express from 'express'
1import { createClient, RedisClient } from 'redis' 2import { createClient, RedisClient } from 'redis'
2import { logger } from '../helpers/logger' 3import { logger } from '../helpers/logger'
3import { generateRandomString } from '../helpers/utils' 4import { generateRandomString } from '../helpers/utils'
4import { CONFIG, USER_PASSWORD_RESET_LIFETIME, VIDEO_VIEW_LIFETIME } from '../initializers' 5import { CONFIG, FEEDS, USER_PASSWORD_RESET_LIFETIME, VIDEO_VIEW_LIFETIME } from '../initializers'
6
7type CachedRoute = {
8 body: string,
9 contentType?: string
10 statusCode?: string
11}
5 12
6class Redis { 13class Redis {
7 14
@@ -54,6 +61,22 @@ class Redis {
54 return this.exists(this.buildViewKey(ip, videoUUID)) 61 return this.exists(this.buildViewKey(ip, videoUUID))
55 } 62 }
56 63
64 async getCachedRoute (req: express.Request) {
65 const cached = await this.getObject(this.buildCachedRouteKey(req))
66
67 return cached as CachedRoute
68 }
69
70 setCachedRoute (req: express.Request, body: any, contentType?: string, statusCode?: number) {
71 const cached: CachedRoute = {
72 body: body.toString(),
73 contentType,
74 statusCode: statusCode.toString()
75 }
76
77 return this.setObject(this.buildCachedRouteKey(req), cached, FEEDS.CACHE_LIFETIME)
78 }
79
57 listJobs (jobsPrefix: string, state: string, mode: 'alpha', order: 'ASC' | 'DESC', offset: number, count: number) { 80 listJobs (jobsPrefix: string, state: string, mode: 'alpha', order: 'ASC' | 'DESC', offset: number, count: number) {
58 return new Promise<string[]>((res, rej) => { 81 return new Promise<string[]>((res, rej) => {
59 this.client.sort(jobsPrefix + ':jobs:' + state, 'by', mode, order, 'LIMIT', offset.toString(), count.toString(), (err, values) => { 82 this.client.sort(jobsPrefix + ':jobs:' + state, 'by', mode, order, 'LIMIT', offset.toString(), count.toString(), (err, values) => {
@@ -79,13 +102,39 @@ class Redis {
79 this.client.set(this.prefix + key, value, 'PX', expirationMilliseconds, (err, ok) => { 102 this.client.set(this.prefix + key, value, 'PX', expirationMilliseconds, (err, ok) => {
80 if (err) return rej(err) 103 if (err) return rej(err)
81 104
82 if (ok !== 'OK') return rej(new Error('Redis result is not OK.')) 105 if (ok !== 'OK') return rej(new Error('Redis set result is not OK.'))
83 106
84 return res() 107 return res()
85 }) 108 })
86 }) 109 })
87 } 110 }
88 111
112 private setObject (key: string, obj: { [ id: string ]: string }, expirationMilliseconds: number) {
113 return new Promise<void>((res, rej) => {
114 this.client.hmset(this.prefix + key, obj, (err, ok) => {
115 if (err) return rej(err)
116 if (!ok) return rej(new Error('Redis mset result is not OK.'))
117
118 this.client.pexpire(this.prefix + key, expirationMilliseconds, (err, ok) => {
119 if (err) return rej(err)
120 if (!ok) return rej(new Error('Redis expiration result is not OK.'))
121
122 return res()
123 })
124 })
125 })
126 }
127
128 private getObject (key: string) {
129 return new Promise<{ [ id: string ]: string }>((res, rej) => {
130 this.client.hgetall(this.prefix + key, (err, value) => {
131 if (err) return rej(err)
132
133 return res(value)
134 })
135 })
136 }
137
89 private exists (key: string) { 138 private exists (key: string) {
90 return new Promise<boolean>((res, rej) => { 139 return new Promise<boolean>((res, rej) => {
91 this.client.exists(this.prefix + key, (err, existsNumber) => { 140 this.client.exists(this.prefix + key, (err, existsNumber) => {
@@ -104,6 +153,10 @@ class Redis {
104 return videoUUID + '-' + ip 153 return videoUUID + '-' + ip
105 } 154 }
106 155
156 private buildCachedRouteKey (req: express.Request) {
157 return req.method + '-' + req.originalUrl
158 }
159
107 static get Instance () { 160 static get Instance () {
108 return this.instance || (this.instance = new this()) 161 return this.instance || (this.instance = new this())
109 } 162 }