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n3rddd 2023-08-05 17:29:28 +08:00 committed by GitHub
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3 changed files with 52 additions and 54 deletions
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2
JN/EXT/OPENJS/open/lib/cat.js
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48
JN/EXT/OPENJS/open/lib/similarity.js
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@ -1,47 +1 @@
function compareTwoStrings(first, second) {
if ((first = first.replace(/\s+/g, '')) === (second = second.replace(/\s+/g, ''))) return 1;
if (first.length < 2 || second.length < 2) return 0;
var firstBigrams = new Map();
for (let i = 0; i < first.length - 1; i++) {
var bigram = first.substring(i, i + 2),
count = firstBigrams.has(bigram) ? firstBigrams.get(bigram) + 1 : 1;
firstBigrams.set(bigram, count);
}
let intersectionSize = 0;
for (let i = 0; i < second.length - 1; i++) {
const bigram = second.substring(i, i + 2),
count = firstBigrams.has(bigram) ? firstBigrams.get(bigram) : 0;
0 < count && (firstBigrams.set(bigram, count - 1), intersectionSize++);
}
return (2 * intersectionSize) / (first.length + second.length - 2);
}
function findBestMatch(mainString, targetStrings) {
var ratings = [];
let bestMatchIndex = 0;
for (let i = 0; i < targetStrings.length; i++) {
var currentTargetString = targetStrings[i],
currentRating = compareTwoStrings(mainString, currentTargetString);
ratings.push({ target: currentTargetString, rating: currentRating }), currentRating > ratings[bestMatchIndex].rating && (bestMatchIndex = i);
}
return { ratings: ratings, bestMatch: ratings[bestMatchIndex], bestMatchIndex: bestMatchIndex };
}
function lcs(str1, str2) {
if (!str1 || !str2) return { length: 0, sequence: '', offset: 0 };
for (var sequence = '', str1Length = str1.length, str2Length = str2.length, num = new Array(str1Length), maxlen = 0, lastSubsBegin = 0, i = 0; i < str1Length; i++) {
for (var subArray = new Array(str2Length), j = 0; j < str2Length; j++) subArray[j] = 0;
num[i] = subArray;
}
for (var thisSubsBegin = null, i = 0; i < str1Length; i++) for (j = 0; j < str2Length; j++) str1[i] !== str2[j] ? (num[i][j] = 0) : ((num[i][j] = 0 === i || 0 === j ? 1 : 1 + num[i - 1][j - 1]), num[i][j] > maxlen && ((maxlen = num[i][j]), lastSubsBegin === (thisSubsBegin = i - num[i][j] + 1) ? (sequence += str1[i]) : ((lastSubsBegin = thisSubsBegin), (sequence = ''), (sequence += str1.substr(lastSubsBegin, i + 1 - lastSubsBegin)))));
return { length: maxlen, sequence: sequence, offset: thisSubsBegin };
}
function findBestLCS(mainString, targetStrings) {
var results = [];
let bestMatchIndex = 0;
for (let i = 0; i < targetStrings.length; i++) {
var currentTargetString = targetStrings[i],
currentLCS = lcs(mainString, currentTargetString);
results.push({ target: currentTargetString, lcs: currentLCS }), currentLCS.length > results[bestMatchIndex].lcs.length && (bestMatchIndex = i);
}
return { allLCS: results, bestMatch: results[bestMatchIndex], bestMatchIndex: bestMatchIndex };
}
export { compareTwoStrings, findBestMatch, findBestLCS };
function compareTwoStrings(first,second){if((first=first.replace(/\s+/g,""))===(second=second.replace(/\s+/g,"")))return 1;if(first.length<2||second.length<2)return 0;var firstBigrams=new Map;for(let i=0;i<first.length-1;i++){var bigram=first.substring(i,i+2),count=firstBigrams.has(bigram)?firstBigrams.get(bigram)+1:1;firstBigrams.set(bigram,count)}let intersectionSize=0;for(let i=0;i<second.length-1;i++){const bigram=second.substring(i,i+2),count=firstBigrams.has(bigram)?firstBigrams.get(bigram):0;0<count&&(firstBigrams.set(bigram,count-1),intersectionSize++)}return 2*intersectionSize/(first.length+second.length-2)}function findBestMatch(mainString,targetStrings){var ratings=[];let bestMatchIndex=0;for(let i=0;i<targetStrings.length;i++){var currentTargetString=targetStrings[i],currentRating=compareTwoStrings(mainString,currentTargetString);ratings.push({target:currentTargetString,rating:currentRating}),currentRating>ratings[bestMatchIndex].rating&&(bestMatchIndex=i)}return{ratings:ratings,bestMatch:ratings[bestMatchIndex],bestMatchIndex:bestMatchIndex}}function lcs(str1,str2){if(!str1||!str2)return{length:0,sequence:"",offset:0};for(var sequence="",str1Length=str1.length,str2Length=str2.length,num=new Array(str1Length),maxlen=0,lastSubsBegin=0,i=0;i<str1Length;i++){for(var subArray=new Array(str2Length),j=0;j<str2Length;j++)subArray[j]=0;num[i]=subArray}for(var thisSubsBegin=null,i=0;i<str1Length;i++)for(j=0;j<str2Length;j++)str1[i]!==str2[j]?num[i][j]=0:(num[i][j]=0===i||0===j?1:1+num[i-1][j-1],num[i][j]>maxlen&&(maxlen=num[i][j],lastSubsBegin===(thisSubsBegin=i-num[i][j]+1)?sequence+=str1[i]:(lastSubsBegin=thisSubsBegin,sequence="",sequence+=str1.substr(lastSubsBegin,i+1-lastSubsBegin))));return{length:maxlen,sequence:sequence,offset:thisSubsBegin}}function findBestLCS(mainString,targetStrings){var results=[];let bestMatchIndex=0;for(let i=0;i<targetStrings.length;i++){var currentTargetString=targetStrings[i],currentLCS=lcs(mainString,currentTargetString);results.push({target:currentTargetString,lcs:currentLCS}),currentLCS.length>results[bestMatchIndex].lcs.length&&(bestMatchIndex=i)}return{allLCS:results,bestMatch:results[bestMatchIndex],bestMatchIndex:bestMatchIndex}}export{compareTwoStrings,findBestMatch,findBestLCS};

56
JN/EXT/OPENJS/open/lib/utils.js
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@ -26,11 +26,55 @@ function removeExt(text) {
}
async function log(str) {
// let url = 'remote log url';
// await req(url, {
// method: 'post',
// data: {log: str}
// });
console.debug(str);
}
export { isSub, getSize, removeExt, log};
function isVideoFormat(url) {
var RULE = /http((?!http).){12,}?\.(m3u8|mp4|flv|avi|mkv|rm|wmv|mpg|m4a|mp3)\?.*|http((?!http).){12,}\.(m3u8|mp4|flv|avi|mkv|rm|wmv|mpg|m4a|mp3)|http((?!http).)*?video\/tos*/;
if (url.indexOf("url=http") > -1 || url.indexOf(".js") > -1 || url.indexOf(".css") > -1 || url.indexOf(".html") > -1) {
return false;
}
return RULE.test(url);
}
function jsonParse(input, json) {
var jsonPlayData = JSON.parse(json);
var url = jsonPlayData.url;
if (url.startsWith("//")) {
url = "https:" + url;
}
if (!url.startsWith("http")) {
return null;
}
if (url === input) {
if (!isVideoFormat(url)) {
return null;
}
}
var headers = {};
var ua = jsonPlayData["user-agent"] || "";
if (ua.trim().length > 0) {
headers["User-Agent"] = " " + ua;
}
var referer = jsonPlayData.referer || "";
if (referer.trim().length > 0) {
headers["Referer"] = " " + referer;
}
var taskResult = {
header: headers,
url: url
};
return taskResult;
}
function debug(obj) {
for (var a in obj) {
if (typeof(obj[a]) == "object") {
debug(obj[a]); //递归遍历
} else {
console.debug(a + "=" + obj[a]);
}
}
}
export { isSub, getSize, removeExt, log, isVideoFormat, jsonParse, debug};