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Fixed the encoding of URIs containing escape sequences (eg, "%20")

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This commit is contained in:
Jeff Parsons 2016-09-12 16:38:55 -07:00
commit bbaf0d141f
2 changed files with 11 additions and 4 deletions
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14
modules/shared/lib/netlib.js
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@ -136,12 +136,13 @@ net.propagateParms = function(sURL, req)
/**
* encodeURL(sURL, req, fDebug)
*
* Used to encodes any URLs presented on the current page, using this 3-step (um, 4-step) process:
* Used to encodes any URLs presented on the current page, using this, um, simple 5-step process:
*
* 1) Replace any backslashes with slashes, in case the URL was derived from a file system path
* 2) Remap links that begin with "archive/" to the corresponding URL at "http://archive.pcjs.org/"
* 3) Transform any "htmlspecialchars" into the corresponding entities, using encodeURI()
* 4) Massage the result with net.propagateParms(), so that any special parameters are passed along
* 3) Use decodeURI() to eliminate escape sequences (like "%20") so that encodeURI() won't re-encode the "%"
* 4) Use encodeURI() to transform all "htmlspecialchars" and reserved characters into the appropriate sequences
* 5) Massage the result with net.propagateParms(), so that any special parameters are passed along
*
* @param {string} sURL
* @param {Object} req is the web server's (ie, Express) request object, if any
@ -158,7 +159,12 @@ net.encodeURL = function(sURL, req, fDebug)
sURL = "http://archive.pcjs.org" + sURL.replace("/archive/", "/");
}
}
return net.propagateParms(encodeURI(sURL), req);
/*
* If the incoming URL already contains URI-style escape sequences (eg, "%20" instead of spaces),
* calling decodeURI() first will eliminate them, preventing encodeURI() from converting leading
* "%" into "%25" and corrupting sequences like "%20" by turning them into "%2520".
*/
return net.propagateParms(encodeURI(decodeURI(sURL)), req);
}
return sURL;
};

1
pubs/README.md
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@ -24,6 +24,7 @@ Ohio Scientific's 6502-based [Challenger 1P Publications](/pubs/c1p/):
[Digital Equipment Corporation (DEC) Publications](/pubs/dec/):
* [PDP-11](/pubs/dec/pdp11/)
* [VT100](/pubs/dec/vt100/)
[<img src="http://archive.pcjs.org/pubs/pc/datasheets/thumbs/8088-CPU.jpg" width="200" height="260" alt= "8088 CPU"/>](pc/datasheets/)