oceanprotocol/ocean.js
1
0
Fork 0
mirror of https://github.com/oceanprotocol/ocean.js.git synced 2024-11-26 20:39:05 +01:00
Code Releases Activity

Merge pull request #311 from oceanprotocol/fix/lzma

Browse Source 
replace lzma library
This commit is contained in:
Matthias Kretschmann 2020-09-25 15:55:43 +02:00 committed by GitHub
commit f5e7014477
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 16 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
package-lock.json generated
View File

@ -10335,9 +10335,9 @@
},
"dependencies": {
"@types/node": {
"version": "12.12.59",
"resolved": "https://registry.npmjs.org/@types/node/-/node-12.12.59.tgz",
"integrity": "sha512-D2MISWfv2j17aFBAkMD3lQ97vYpXCkAJMJf0mx2eKHNkzXA6Vo9w7A7BWi9fH8sOH1zeFb7fIhOo22z0TtrSag=="
"version": "12.12.62",
"resolved": "https://registry.npmjs.org/@types/node/-/node-12.12.62.tgz",
"integrity": "sha512-qAfo81CsD7yQIM9mVyh6B/U47li5g7cfpVQEDMfQeF8pSZVwzbhwU3crc0qG4DmpsebpJPR49AKOExQyJ05Cpg=="
}
}
},

24
src/metadatastore/OnChainMetaData.ts
View File

@ -5,7 +5,10 @@ import { AbiItem } from 'web3-utils/types'
import Web3 from 'web3'
import defaultDDOContractABI from '@oceanprotocol/contracts/artifacts/Metadata.json'
import { didZeroX } from '../utils'
import { LZMA } from 'lzma'
// Using limited, compress-only version
// See https://github.com/LZMA-JS/LZMA-JS#but-i-dont-want-to-use-web-workers
import { LZMA } from 'lzma/src/lzma-c'
/**
* Provides an interface with Metadata Store.
@ -34,17 +37,16 @@ export class OnChainMetadataStore {
)
}
/** Compress DDO using LZMA
*
/**
* Compress DDO using xz/lzma2
*/
public async LZMACompressDDO(ddo: DDO): Promise<any> {
public async compressDDO(ddo: DDO): Promise<string> {
const data = DDO.serialize(ddo)
const lzma = new LZMA()
// see https://github.com/LZMA-JS/LZMA-JS/issues/44
lzma.disableEndMark = true
let compressed = lzma.compress(data, 9)
compressed = this.getHex(compressed)
return compressed
LZMA.disableEndMark = true
const compressed = LZMA.compress(data, 9)
return this.getHex(compressed)
}
/**
@ -60,7 +62,7 @@ export class OnChainMetadataStore {
consumerAccount: string
): Promise<TransactionReceipt> {
let flags = 0
const compressed = await this.LZMACompressDDO(ddo)
const compressed = await this.compressDDO(ddo)
flags = flags | 1
return this.publishRaw(didZeroX(did), flags, compressed, consumerAccount)
}
@ -78,7 +80,7 @@ export class OnChainMetadataStore {
consumerAccount: string
): Promise<TransactionReceipt> {
let flags = 0
const compressed = await this.LZMACompressDDO(ddo)
const compressed = await this.compressDDO(ddo)
flags = flags | 1
return this.updateRaw(didZeroX(did), flags, compressed, consumerAccount)
}