Illegal character in path at index 65 exception [ java ]

Question

I am trying to fetch a page using HTTPGET apache method but it throws me this exception :

Illegal character in path at index 65: http://doctorat.tuiasi.ro/Htm/Proiecte_POSDRU_17.02.2013/Proiecte europene.html

I know the space out there may be the cause of the problem but I am trying to filter the url like that

String url=everyUrl.getUrl().replaceAll(" ", "%20");
                if (url.contains("http://")) {
                    Pattern allowedUrlCharacters = Pattern
                            .compile("([A-Za-z0-9_.~:/?\\#\\[\\]@!$&'()*+,;" + "=-]|%[0-9a-fA-F]{2})+");
                    Matcher matcher = allowedUrlCharacters.matcher(url);
                    if (matcher.find()) {
                        pushInFrontQueues(url);
                    }
                    // System.out.println(this.frontQueues.get(0).size());

                }
            }

What I am doing wrong ? Can anyone help me please?

What's the full stack trace? On which line in the code does the exception occur? — Riaan Nel, May 17 '17 at 17:32
Spaces are not allowed in urls. You have one in "Proiecte europene.html" — litelite, May 17 '17 at 17:32
see http://stackoverflow.com/questions/724043/http-url-address-encoding-in-java — ssc-hrep3, May 17 '17 at 17:35
@litelite I know , but I have tested id and should not pass the test , but it does — Buculei Razvan, May 17 '17 at 17:35
What line does the error occur on? That trace doesn't show a line number. — Riaan Nel, May 17 '17 at 17:37

dumptruckman · Accepted Answer · 2017-05-17T21:27:22.370

1

The thing is, your regex is finding a valid string. In fact, it's finding two valid strings. Take a look at this to see what I mean. It has found two matching groups.

You need to make sure to only match if the entire string matches. You can do that by surround your regex with ^ and $, like so:

"^([A-Za-z0-9_.~:/?\\#\\[\\]@!$&'()*+,;" + "=-]|%[0-9a-fA-F]{2})+$"

However, this pattern will likely match things you don't want such as something%2else. To only allow valid percent encoding, you might want something like this:

"^(%[0-9a-fA-F]{2}|[^%][A-Fa-f0-9]|[G-Zg-z_.~:/?\\#\\[\\]@!$&'()*+,;=-])+$"

edited May 17 '17 at 21:27

answered May 17 '17 at 17:41

dumptruckman

114
7

Sorry, I don't know why I didn't just try to fix the regex. I updated the answer. – dumptruckman May 17 '17 at 18:01
Added an even better regex to the answer. – dumptruckman May 17 '17 at 18:16

Illegal character in path at index 65 exception [ java ]

1 Answers1