Chip 2007 January, February, March & April/Chip-Cover-CD-2007-02.iso/Pakiet multimedia/Animacje, filmy i prezentacje/Kodeki/DivX 6.4 Play/DivXInstaller.exe/$PLUGINSDIR/GoogleToolbarFirefox.msi/xpi/amulet-jslib/url-canonicalizer.js

Text File | 2006-08-07 | 6KB | 147 lines

function PROT_URLCanonicalizer() {
throw new Error("No need to instantiate a canonicalizer at this point.");
}
PROT_URLCanonicalizer.debugZone = "urlcanonicalizer";
PROT_URLCanonicalizer.hexChars_ = "0123456789ABCDEF";
PROT_URLCanonicalizer.hexPairToInt_ = function(hh) {
return Number("0x" + hh);
}
PROT_URLCanonicalizer.toHex_ = function(val) {
var retVal = PROT_URLCanonicalizer.hexChars_.charAt((val >> 4) & 15) +
PROT_URLCanonicalizer.hexChars_.charAt(val & 15);
return retVal;
}
PROT_URLCanonicalizer.canonicalizeURL_ = function(url) {
var arrayOfASCIIVals = PROT_URLCanonicalizer.fullyDecodeURL_(url);
return PROT_URLCanonicalizer.specialEncodeURL_(arrayOfASCIIVals);
}
PROT_URLCanonicalizer.fullyDecodeURL_ = function(url) {
var nextIteration = url.split("");
var output = [];
while (nextIteration.length) {
var decodedAPercent = false;
var thisIteration = nextIteration;
var nextIteration = [];
var i = 0;
while (i < thisIteration.length) {
var c = thisIteration[i];
if (c == "%" && i + 2 < thisIteration.length) {
var asciiVal =
PROT_URLCanonicalizer.hexPairToInt_(thisIteration[i + 1] +
thisIteration[i + 2]);
if (!isNaN(asciiVal)) {
i += 2;                   // Valid HH sequence; consume it
if (asciiVal == 0)        // We special case nulls
asciiVal = 1;
c = String.fromCharCode(asciiVal);
if (c == "%")
decodedAPercent = true;
}
}
if (decodedAPercent)
nextIteration[nextIteration.length] = c;
else
output[output.length] = c.charCodeAt(0);
++i;
}
}
return output;
}
PROT_URLCanonicalizer.fullyDecodeURLAsString_ = function(url) {
var arrayOfASCIIVals = PROT_URLCanonicalizer.fullyDecodeURL_(url);
var s = "";
for (var i = 0; i < arrayOfASCIIVals.length; i++)
s += String.fromCharCode(arrayOfASCIIVals[i]);
return s;
}
PROT_URLCanonicalizer.specialEncodeURL_ = function(arrayOfASCIIValues) {
var output = [];
for (var i = 0; i < arrayOfASCIIValues.length; i++) {
var n = arrayOfASCIIValues[i];
if (n <= 32 || n == 37 || n >= 127)
output.push("%" + ((!n) ? "01" : PROT_URLCanonicalizer.toHex_(n)));
else
output.push(String.fromCharCode(n));
}
return output.join("");
}
function TEST_PROT_URLCanonicalizer() {
if (G_GDEBUG) {
var z = "urlcanonicalizer UNITTEST";
G_debugService.enableZone(z);
G_Debug(z, "Starting");
var hexify = PROT_URLCanonicalizer.toHex_;
var shouldHaveLeadingZeros = hexify(0) + hexify(1);
G_Assert(z, shouldHaveLeadingZeros == "0001",
"Need to append leading zeros to hex rep value <= 15 !")
var dec = PROT_URLCanonicalizer.fullyDecodeURLAsString_;
G_Assert(z, dec("") == "", "decoding empty string");
var allCharsEncoded = "";
var allCharsEncodedLowercase = "";
var allCharsAsString = "";
allCharsEncoded += "%01";
allCharsEncodedLowercase += "%01";
allCharsAsString += String.fromCharCode(1);
for (var i = 1; i < 256; i++) {
allCharsEncoded += "%" + PROT_URLCanonicalizer.toHex_(i);
allCharsEncodedLowercase += "%" +
PROT_URLCanonicalizer.toHex_(i).toLowerCase();
allCharsAsString += String.fromCharCode(i);
}
G_Assert(z, dec(allCharsEncoded) == allCharsAsString, "decoding escaped");
G_Assert(z, dec(allCharsEncodedLowercase) == allCharsAsString,
"decoding lowercase");
G_Assert(z, dec("%") == "%", "1 percent");
G_Assert(z, dec("%xx") == "%xx", "1 percent, two non-hex");
G_Assert(z, dec("%%") == "%%", "2 percent");
G_Assert(z, dec("%%%") == "%%%", "3 percent");
G_Assert(z, dec("%%%%") == "%%%%", "4 percent");
G_Assert(z, dec("%1") == "%1", "1 percent, one nonhex");
G_Assert(z, dec("%1z") == "%1z", "1 percent, two nonhex");
G_Assert(z, dec("a%1z") == "a%1z", "nonhex, 1 percent, two nonhex");
G_Assert(z, dec("abc%d%e%fg%hij%klmno%") == "abc%d%e%fg%hij%klmno%",
"lots of percents, no hex");
G_Assert(z, dec("%25") == "%", "single-encoded %");
G_Assert(z, dec("%25%32%35") == "%", "double-encoded %");
G_Assert(z, dec("asdf%25%32%35asd") == "asdf%asd", "double-encoded % 2");
G_Assert(z, dec("%%%25%32%35asd%%") == "%%%asd%%", "double-encoded % 3");
G_Assert(z, dec("%25%32%35%25%32%35%25%32%35") == "%%%",
"sequenctial double-encoded %");
G_Assert(z, dec("%2525252525252525") == "%", "many-encoded %");
G_Assert(z, dec("%257Ea%2521b%2540c%2523d%2524e%25f%255E00%252611%252A22%252833%252944_55%252B") == "~a!b@c#d$e%f^00&11*22(33)44_55+",
"4x-encoded string");
var enc = PROT_URLCanonicalizer.specialEncodeURL_;
G_Assert(z, enc([]) == "", "encoding empty array");
var no = [];
var noAsString = "";
for (var i = 33; i < 127; i++)
if (i != 37) {                      // skip %
no.push(i);
noAsString += String.fromCharCode(i);
}
G_Assert(z, enc(no) == noAsString, "chars to not encode");
var yes = [];
var yesAsString = "";
var yesExpectedString = "";
yes.push(0);
yesAsString += String.fromCharCode(1);
yesExpectedString += "%01";
for (var i = 1; i < 256; i++)
if (i < 33 || i == 37 || i > 126) {
yes.push(i);
yesAsString += String.fromCharCode(i);
var hex = i.toString(16).toUpperCase();
yesExpectedString += "%" + ((i < 16) ? "0" : "") + hex;
}
G_Assert(z, enc(yes) == yesExpectedString, "chars to encode");
var c = PROT_URLCanonicalizer.canonicalizeURL_;
G_Assert(z, c("http://www.google.com") == "http://www.google.com",
"http://www.google.com");
G_Assert(z, c("http://%31%36%38%2e%31%38%38%2e%39%39%2e%32%36/%2E%73%65%63%75%72%65/%77%77%77%2E%65%62%61%79%2E%63%6F%6D/") == "http://168.188.99.26/.secure/www.ebay.com/",
"fully encoded ebay");
G_Assert(z, c("http://195.127.0.11/uploads/%20%20%20%20/.verify/.eBaysecure=updateuserdataxplimnbqmn-xplmvalidateinfoswqpcmlx=hgplmcx/") == "http://195.127.0.11/uploads/%20%20%20%20/.verify/.eBaysecure=updateuserdataxplimnbqmn-xplmvalidateinfoswqpcmlx=hgplmcx/",
"long url with spaces that stays same");
G_Debug(z, "PASSED");
}
}