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index.js
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index.js
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'use strict';
const fs = require('fs');
const request = require('request');
const normalizeUrl = url => {
const regex = /^(?:https?:\/\/)?([a-zA-Z0-9.]+)(?:\/(.+)?)?$/;
let m = regex.exec(url);
return m == null ? false : ( m[1] + ( typeof m[2] == 'undefined' ? '' : '/' + m[2]) );
}
/**/
const default_parse_library = {
obj: require(__dirname + "/parse_modules/library/obj.js"),
str: require(__dirname + "/parse_modules/library/str.js"),
json: require(__dirname + "/parse_modules/library/json.js"),
array: require(__dirname + "/parse_modules/library/array.js"),
crypto: require(__dirname + "/parse_modules/library/crypto.js"),
csv: require(__dirname + "/parse_modules/library/csv.js"),
};
const default_parse_modules = {
log: require(__dirname + "/parse_modules/log.js"),
custom: require(__dirname + "/parse_modules/custom.js"),
dom: require(__dirname + "/parse_modules/dom.js"),
regex: require(__dirname + "/parse_modules/regex.js"),
break: require(__dirname + "/parse_modules/break.js"),
parallel: require(__dirname + "/parse_modules/parallel.js"),
};
/**
const default_parse_library = [
'obj',
'str',
'json',
'array',
'crypto',
'csv'
];
const default_parse_modules = [
'log',
'custom',
'dom',
'regex',
'break',
'parallel'
];
/**/
class Poliparser {
constructor(parser = {}) {
this.parser = parser;
let base_module_obj = Object.assign({}, default_parse_modules);
let libs = Object.keys(default_parse_library);
libs.forEach(lib => {
let modules = Object.keys(default_parse_library[lib]);
modules.forEach(mod => {
base_module_obj[lib + '_' + mod] = default_parse_library[lib][mod];
});
});
this.parse_modules = base_module_obj;
}
parse(data) {
return this.singleParse(data, this.parser);
}
parseFile(data) {
return this.singleParse(fs.readFileSync(data).toString(), this.parser);;
}
parseUrl(url, options = {}) {
let opt = Object.assign({
forceHttps: false
}, options);
return new Promise((resolve, reject) => {
try {
if(opt.forceHttps){
url = normalizeUrl(url);
if(!url)
reject('invalid url!');
url = 'https://' + url;
}
request(url, (err, response, body) => {
/* istanbul ignore else */
if(!err){
resolve(this.singleParse(body, this.parser));
}else{
reject(err);
}
});
} catch (e) {
/* istanbul ignore next */
reject(e);
}
});
}
setModule(name, new_module) {
this.parse_modules[name] = new_module;
}
setParser(parser) {
this.parser = parser;
}
requireModule(name, module_path) {
this.parse_modules[name] = require(module_path);
}
setLibrary(name, new_library) {
let modules = Object.keys(new_library);
modules.forEach(mod => {
this.parse_modules[name + '_' + mod] = new_library[mod];
});
}
requireLibrary(name, library_path) {
let new_library = require(library_path);
let modules = Object.keys(new_library);
modules.forEach(mod => {
this.parse_modules[name + '_' + mod] = new_library[mod];
});
}
singleParse(data, block) {
if (block.constructor == Array) {
let dOut = data;
for (let i = 0; i < block.length; i++) {
try{
dOut = this.singleParse(dOut, block[i]);
}catch(e){
/* istanbul ignore else */
if(typeof e.break != "undefined" && e.break){
return e.value;
}else{
throw e;
}
}
}
return dOut;
}
for (const k in this.parse_modules) {
if (block.m == k) {
return this.parse_modules[k](data, block, Poliparser);
}
}
return data;
}
}
module.exports = Poliparser;