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Speedrunning strats (increased speed on big files)

This commit is contained in:
Matt 2019-01-09 11:45:11 +00:00
parent 26a2fb6662
commit 4db2335107
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GPG Key ID: 2DD462FE98BF38C2
3 changed files with 11 additions and 6 deletions
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6
package-lock.json generated
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@ -7756,9 +7756,9 @@
"integrity": "sha1-ZMTwJfF/1Tv7RXY/rrFvAVp0dVA="
},
"libyara-wasm": {
"version": "0.0.4",
"resolved": "https://registry.npmjs.org/libyara-wasm/-/libyara-wasm-0.0.4.tgz",
"integrity": "sha512-Puw8AfHRgAiS2SBvJBlh3DEYU3icU16MciwQK5Fsxel021UK7DcY1A5DAKYanPNeXVztlz/9USZbEneAkcWzvA=="
"version": "0.0.6",
"resolved": "https://registry.npmjs.org/libyara-wasm/-/libyara-wasm-0.0.6.tgz",
"integrity": "sha512-Crnaz5G/ejjZrEYTlyUZIaquR66djW8w8UR8GtgFrpWzhiySPJTcdxwOhGmCku2VhhETPznz20KxBNifBSF+oA=="
},
"livereload-js": {
"version": "2.4.0",

2
package.json
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@ -106,7 +106,7 @@
"jsqr": "^1.1.1",
"jsrsasign": "8.0.12",
"kbpgp": "^2.0.82",
"libyara-wasm": "0.0.4",
"libyara-wasm": "0.0.6",
"lodash": "^4.17.11",
"loglevel": "^1.6.1",
"loglevel-message-prefix": "^3.0.0",

9
src/core/operations/YaraRules.mjs
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@ -23,7 +23,7 @@ class YaraRules extends Operation {
this.module = "Yara";
this.description = "Yara support";
this.infoURL = "https://en.wikipedia.org/wiki/YARA";
this.inputType = "string";
this.inputType = "ArrayBuffer";
this.outputType = "string";
this.args = [{
name: "Rules",
@ -41,7 +41,12 @@ class YaraRules extends Operation {
return new Promise((resolve, reject) => {
Yara().then(yara => {
let matchString = "";
const resp = yara.run(input, args[0]);
const inpArr = new Uint8Array(input); // I know this is garbage but it's like 1.5 times faster
const inpVec = new yara.vectorChar();
for (let i = 0; i < inpArr.length; i++) {
inpVec.push_back(inpArr[i]);
}
const resp = yara.run(inpVec, args[0]);
if (resp.compileErrors.size() > 0) {
for (let i = 0; i < resp.compileErrors.size(); i++) {
const compileError = resp.compileErrors.get(i);