Percent encoding needs 0-padding if less than 2 digits

[pfrazee]

Discovered on Chrome 26.0.1410.65, OSX 10.8.

Some character codes (eg "\n") produce hex values which are less than "F" (eg "%A") which creates an error when decoded by the browser (it expects "%0A").

To reproduce this issue:

decodeURIComponent(UriTemplate.parse('http://whatever.com{?q}').expand({q:"foo\nbar"}));

A simple fix:

    function pad0(v) {
      if (v.length > 1) return v;
        return '0'+v;
    }

    /**
     * encodes a character, if needed or not.
     * @param chr
     * @return pct-encoded character
     */
    function encodeCharacter (chr) {
        var
            result = '',
            octets = utf8.encode(chr),
            octet,
            index;
        for (index = 0; index < octets.length; index += 1) {
            octet = octets.charCodeAt(index);
            result += '%' + pad0(octet.toString(16).toUpperCase());
        }
        return result;
    }

[fxa]

of course you are right. I will add a test case and your fix
sorry, as a freelancer I normally can only fix things on weekend

[pfrazee]

No problem! This has been a very useful library for me - I appreciate it.

[fxa]

Thank you!

I just fixed your issue.

And yes, the “extract” function will come.

I have a 0.0.1 version and will check in, but the bug fixes have higher priority

Franz

Von: Paul Frazee [mailto:notifications@github.com]
Gesendet: Sonntag, 26. Mai 2013 17:40
An: fxa/uritemplate-js
Cc: Franz X Antesberger
Betreff: Re: [uritemplate-js] Percent encoding needs 0-padding if less than 2 digits (#12)

No problem! This has been a very useful library for me - I appreciate it.

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