Extract and decompose (fuzzy) URLs (including emails, which are conceptually a part of URLs) in texts with robust patterns.
- This library is currently being refactored into TypeScript, as it was originally developed in JavaScript.
For ES5 users,
<html> <body> <script src="../dist/url-knife.bundle.js"></script> <--! OR !--> <script src="https://cdn.jsdelivr.net/gh/patternknife/url-knife@4.0.1/dist/url-knife.bundle.min.js"></script> <script type="text/javascript"> </script> </body> </html>For ES6 npm users, run 'npm install --save url-knife' on console. (Requred Node v18.20.4)
import {TextArea, UrlArea, XmlArea} from 'url-knife';Chapter 1. Normalize or parse one URL
Chapter 2. Extract all URLs or emails
Chapter 3. Extract URIs with certain names
Chapter 4. Extract all URLs in raw HTML or XML
The following two methods should be used for processing a single URL, not for multiple URLs within a text. (For handling multiple URLs, refer to Chapters 2 and 4.)
If you need to parse a standard URL without any typos, it is safe to use parseUrl. However, normalizeUrl is designed to handle URLs that may contain human errors.
/** * @brief * Normalize an url with potential human errors (Intranet urls are not allowed.) */ var sample1 = Pattern.UrlArea.normalizeUrl("htp/:/abcgermany.,def;:9094 #park//noon??abc=retry") var sample2 = Pattern.UrlArea.normalizeUrl("'://abc.jppp:9091 /park/noon'") var sample3 = Pattern.UrlArea.normalizeUrl("ss hd : /university,.acd. ;jpkp: 9091/adc??abc=.com"){ "url": "htp/:/abcgermany.,def;:9094 #park//noon??abc=retry", "normalizedUrl": "http://abcgermany.de:9094#park/noon?abc=retry", "removedTailOnUrl": "", "protocol": "http", "onlyDomain": "abcgermany.de", "onlyParams": "?abc=retry", "onlyUri": "#park/noon", "onlyUriWithParams": "#park/noon?abc=retry", "onlyParamsJsn": { "abc": "retry" }, "type": "domain", "port": "9094" } { "url": "'://abc.jppp:9091 /park/noon'", "normalizedUrl": "abc.jp:9091/park/noon", "removedTailOnUrl": "'", "protocol": null, "onlyDomain": "abc.jp", "onlyParams": null, "onlyUri": "/park/noon'", "onlyUriWithParams": "/park/noon'", "onlyParamsJsn": null, "type": "domain", "port": "9091" } { "url": "ss hd : /university,.acd. ;jpkp로 접속", "normalizedUrl": "ssh://university.ac.jp", "removedTailOnUrl": "", "protocol": "ssh", "onlyDomain": "university.ac.jp", "onlyParams": null, "onlyUri": null, "onlyUriWithParams": null, "onlyParamsJsn": null, "type": "domain", "port": null }/** * @brief * Parse an url with no potential human errors */ var url = Pattern.UrlArea.parseUrl("xtp://gooppalgo.com/park/tree/?abc=1"){ "url": "xtp://gooppalgo.com/park/tree/?abc=1", "removedTailOnUrl": "", "protocol": "xtp (unknown protocol)", "onlyDomain": "gooppalgo.com", "onlyParams": "?abc=1", "onlyUri": "/park/tree/", "onlyUriWithParams": "/park/tree/?abc=1", "onlyParamsJsn": { "abc": "1" }, "type": "domain", "port": null } var textStr = 'http://[::1]:8000에서 http ://www.example.com/wpstyle/?p=364 is ok \n' + 'HTTP://foo.com/blah_blah_(wikipedia) https://www.google.com/maps/place/USA/@36.2218457,... tnae1ver.com:8000on the internet Asterisk\n ' + 'the packed1book.net. fakeshouldnotbedetected.url?abc=fake s5houl７十七日dbedetected.jp?japan=go&html=<span>가나다@pacbook.net</span>; abc.com/ad/fg/?kk=5 abc@daum.net' + 'Have you visited http://goasidaio.ac.kr?abd=5안녕하세요?5...,.&kkk=5rk.,, ' + 'http://✪df.ws/123\n' + 'http://142.42.1.1:8080/\n' + 'http://-.~_!$&\'()*+,;=:%40:80%2f::::::@example.com ' + 'Have <b>you</b> visited goasidaio.ac.kr?abd=5hell0?5...&kkk=5rk.,. '; /** * @brief * Distill all urls from normal text * @author Andrew Kang * @param textStr string required * @param noProtocolJsn object * default : { 'ip_v4' : false, 'ip_v6' : false, 'localhost' : false, 'intranet' : false } var urls = Pattern.TextArea.extractAllUrls(textStr, { 'ip_v4' : true, 'ip_v6' : false, 'localhost' : false, 'intranet' : true }) /** * @brief * Distill all emails from normal text * @author Andrew Kang * @param textStr string required * @param prefixSanitizer boolean (default : false) * @return array */ var emails = Pattern.TextArea.extractAllEmails(textStr, true) You may be wondering what the 'pass' property below means. If 'pass' is true, that is the email pattern is strictly true following RFC rules.
[{ "value": { "email": "가나다@apacbook.ac.kr", "removedTailOnEmail": null, "type": "domain" }, "area": "text", "index": { "start": 222, "end": 240 }, "pass": false }, { "value": { "email": "adssd@asdasd.ac.jp", "removedTailOnEmail": null, "type": "domain", "removedTailOnUrl": "..." }, "area": "text", "index": { "start": 242, "end": 263 }, "pass": true }]var sampleText = 'https://google.com/abc/777?a=5&b=7 abc/def 333/kak abc/55에서 abc/53 abc/53a/ka /123a/abc/556/dd /abc/123?a=5&b=tkt /xyj/asff' + 'a333/kak nice/guy/ bad/or/nice/guy ssh://nice.guy.com/?a=dkdfl'; /** * @brief * Distill uris with certain names from normal text * @author Andrew Kang * @param textStr string required * @param uris array required * for example, [['a','b'], ['c','d']] * If you use {number}, this means 'only number' ex) [['a','{number}'], ['c','d']] * @param endBoundary boolean (default : false) * @return array */ var uris = Pattern.TextArea.extractCertainUris(sampleText, [['{number}', 'kak'], ['nice','guy'],['abc', '{number}']], true) // 'If endBoundary is set to false, more uris are detected.' // This detects all URIs containing '{number}/kak' or nice/guy' or 'abc/{number}'[ { "uri_detected": { "value": { "url": "/abc/777?a=5&b=7", "removedTailOnUrl": "", "protocol": null, "onlyDomain": "", "onlyParams": "?a=5&b=7", "onlyUri": "/abc/777", "onlyUriWithParams": "/abc/777?a=5&b=7", "onlyParamsJsn": { "a": "5", "b": "7" }, "type": "domain", "port": null }, "area": "text", "index": { "start": 18, "end": 34 } }, "in_what_url": { "value": { "url": "https://google.com/abc/777?a=5&b=7", "removedTailOnUrl": "", "protocol": "https", "onlyDomain": "google.com", "onlyParams": "?a=5&b=7", "onlyUri": "/abc/777", "onlyUriWithParams": "/abc/777?a=5&b=7", "onlyParamsJsn": { "a": "5", "b": "7" }, "type": "domain", "port": null }, "area": "text", "index": { "start": 0, "end": 34 } } }, { "uri_detected": { "value": { "url": "333/kak", "removedTailOnUrl": "", "protocol": null, "onlyDomain": null, "onlyParams": null, "onlyUri": "333/kak", "onlyUriWithParams": "333/kak", "onlyParamsJsn": null, "type": "uri", "port": null }, "area": "text", "index": { "start": 43, "end": 51 } }, "in_what_url": null }, { "uri_detected": { "value": { "url": "abc/53", "removedTailOnUrl": "", "protocol": null, "onlyDomain": null, "onlyParams": null, "onlyUri": "abc/53", "onlyUriWithParams": "abc/53", "onlyParamsJsn": null, "type": "uri", "port": null }, "area": "text", "index": { "start": 60, "end": 67 } }, "in_what_url": null }, { "uri_detected": { "value": { "url": "abc/533/ka", "removedTailOnUrl": "", "protocol": null, "onlyDomain": null, "onlyParams": null, "onlyUri": "abc/533/ka", "onlyUriWithParams": "abc/533/ka", "onlyParamsJsn": null, "type": "uri", "port": null }, "area": "text", "index": { "start": 67, "end": 77 } }, "in_what_url": null }, { "uri_detected": { "value": { "url": "/123a/abc/556/dd", "removedTailOnUrl": "", "protocol": null, "onlyDomain": null, "onlyParams": null, "onlyUri": "/123a/abc/556/dd", "onlyUriWithParams": "/123a/abc/556/dd", "onlyParamsJsn": null, "type": "uri", "port": null }, "area": "text", "index": { "start": 89, "end": 105 } }, "in_what_url": null }, { "uri_detected": { "value": { "url": "/abc/123?a=5&b=tkt", "removedTailOnUrl": "", "protocol": null, "onlyDomain": null, "onlyParams": "?a=5&b=tkt", "onlyUri": "/abc/123", "onlyUriWithParams": "/abc/123?a=5&b=tkt", "onlyParamsJsn": { "a": "5", "b": "tkt" }, "type": "uri", "port": null }, "area": "text", "index": { "start": 106, "end": 124 } }, "in_what_url": null }, { "uri_detected": { "value": { "url": "nice/guy", "removedTailOnUrl": "/", "protocol": null, "onlyDomain": null, "onlyParams": null, "onlyUri": "nice/guy", "onlyUriWithParams": "nice/guy", "onlyParamsJsn": null, "type": "uri", "port": null }, "area": "text", "index": { "start": 144, "end": 153 } }, "in_what_url": null }, { "uri_detected": { "value": { "url": "/or/nice/guy", "removedTailOnUrl": "", "protocol": null, "onlyDomain": null, "onlyParams": null, "onlyUri": "/or/nice/guy", "onlyUriWithParams": "/or/nice/guy", "onlyParamsJsn": null, "type": "uri", "port": null }, "area": "text", "index": { "start": 157, "end": 170 } }, "in_what_url": null } ] // The sample of 'XML (HTML)' var xmlStr = 'en.wikipedia.org/wiki/Wikipedia:About\n' + '<body><p>packed1book.net?user[name][first]=tj&user[name][last]=holowaychuk</p>\n' + 'fakeshouldnotbedetected.url?abc=fake -s5houl７十七日dbedetected.jp?japan=go- ' + 'plus.google.co.kr0에서.., \n' + 'https://plus.google.com/+google\n' + 'https://www.google.com/maps/place/USA/@36.2218457,...' + '<img style=\' = > float : none ; height: 200px;max-width: 50%;margin-top : 3%\' alt="undefined" src="http://www.aaa가가.com/image/showWorkOrderImg?fileName=12345.png"/>\n' + '<!--how about adackedbooked.co.kr-the site? 请发邮件给我abc件给@navered.com ssh://www.aaa가.com" <p >--邮件给aa件给@daum.net</p> www.naver.com\n <p style="width: 100%"></p>--> "abc@daum.net"로 보내주세요. ' + '-gigi.dau.ac.kr?mac=10 -dau.ac.kr?mac=10 <p id="abc" class="def xxx gh" style="<>">abcd@daum.co.kr에서 가나다@pacbook.net<span style="color: rgb(127,127,127);">Please align the paper to the left.</span> </p>\n' + '<p> 구루.com <img style="float:none;height: 200px;margin-top : 3%" src="/image/showWorkOrderImg?fileName=123456.png" alt="undefined" abc/></p>\n' + 'http: //ne1ver.com:8000?abc=1&dd=5 localhost:80 estonia.ee/ estonia.ee? <p class="https://www.aadc给s.cn"> https://flaviocopes.com/how-to-inspect-javascript-object/ ※Please ask 203.35.33.555:8000 if you have any issues! ※ </p></body> Have you visited goasidaioaaa.ac.kr'; var urls = PatternExtractor.XmlArea.extractAllUrls(xmlStr); [ // Not all listed { "value": { "url": "packed1book.net?user[name][first]=tj&user[name][last]=holowaychuk", "removedTailOnUrl": "", "protocol": null, "onlyDomain": "packed1book.net", "onlyParams": "?user[name][first]=tj&user[name][last]=holowaychuk", "onlyUri": null, "onlyUriWithParams": "?user[name][first]=tj&user[name][last]=holowaychuk", "onlyParamsJsn": { "user": { "name": { "first": "tj", "last": "holowaychuk" } } }, "type": "domain", "port": null }, "area": "text" }, { "value": { "url": "adackedbooked.co.kr", "removedTailOnUrl": "", "protocol": null, "onlyDomain": "adackedbooked.co.kr", "onlyParams": null, "onlyUri": null, "onlyUriWithParams": null, "onlyParamsJsn": null, "type": "domain", "port": null }, "area": "comment" } ..... ]