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unbase64 skips over *any* illegal chars

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Jorge Chamorro Bieling 2010-10-18 22:08:42 +02:00 committed by Ryan Dahl
parent 40f675b64b
commit c735b4663a
2 changed files with 20 additions and 1 deletions
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10
src/node_buffer.cc
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@ -230,8 +230,16 @@ static const int unbase64_table[] =
,15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1
,-1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40
,41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1
,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
};
#define unbase64(x) unbase64_table[(int)(x)]
#define unbase64(x) unbase64_table[(uint8_t)(x)]
Handle<Value> Buffer::Base64Slice(const Arguments &args) {

11
test/simple/test-buffer.js
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@ -256,6 +256,17 @@ b = new Buffer(expectedWhite, 'base64');
assert.equal(quote.length, b.length);
assert.equal(quote, b.toString('ascii', 0, quote.length));
// check that the base64 decoder ignores illegal chars
var expectedIllegal = expected.slice(0, 60) + " \x80" +
expected.slice(60, 120) + " \xff" +
expected.slice(120, 180) + " \x00" +
expected.slice(180, 240) + " \x98" +
expected.slice(240, 300) + "\x03" +
expected.slice(300, 360)
b = new Buffer(expectedIllegal, 'base64');
assert.equal(quote.length, b.length);
assert.equal(quote, b.toString('ascii', 0, quote.length));
assert.equal(new Buffer('', 'base64').toString(), '');
assert.equal(new Buffer('K', 'base64').toString(), '');