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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /dom/base/test/chrome/bug418986-1.js | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/base/test/chrome/bug418986-1.js')
-rw-r--r-- | dom/base/test/chrome/bug418986-1.js | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/dom/base/test/chrome/bug418986-1.js b/dom/base/test/chrome/bug418986-1.js new file mode 100644 index 000000000..918d90775 --- /dev/null +++ b/dom/base/test/chrome/bug418986-1.js @@ -0,0 +1,73 @@ +// The main test function. +var test = function (isContent) { + SimpleTest.waitForExplicitFinish(); + + let { ww } = SpecialPowers.Services; + window.chromeWindow = ww.activeWindow; + + // The pairs of values expected to be the same when + // fingerprinting resistance is enabled. + let pairs = [ + ["screenX", 0], + ["screenY", 0], + ["mozInnerScreenX", 0], + ["mozInnerScreenY", 0], + ["screen.pixelDepth", 24], + ["screen.colorDepth", 24], + ["screen.availWidth", "innerWidth"], + ["screen.availHeight", "innerHeight"], + ["screen.left", 0], + ["screen.top", 0], + ["screen.availLeft", 0], + ["screen.availTop", 0], + ["screen.width", "innerWidth"], + ["screen.height", "innerHeight"], + ["screen.orientation.type", "'landscape-primary'"], + ["screen.orientation.angle", 0], + ["screen.mozOrientation", "'landscape-primary'"], + ["devicePixelRatio", 1] + ]; + + // checkPair: tests if members of pair [a, b] are equal when evaluated. + let checkPair = function (a, b) { + is(eval(a), eval(b), a + " should be equal to " + b); + }; + + // Returns generator object that iterates through pref values. + let prefVals = (for (prefVal of [false, true]) prefVal); + + // The main test function, runs until all pref values are exhausted. + let nextTest = function () { + let {value : prefValue, done} = prefVals.next(); + if (done) { + SimpleTest.finish(); + return; + } + SpecialPowers.pushPrefEnv({set : [["privacy.resistFingerprinting", prefValue]]}, + function () { + // We will be resisting fingerprinting if the pref is enabled, + // and we are in a content script (not chrome). + let resisting = prefValue && isContent; + // Check each of the pairs. + pairs.map(function ([item, onVal]) { + if (resisting) { + checkPair("window." + item, onVal); + } else { + if (!item.startsWith("moz")) { + checkPair("window." + item, "chromeWindow." + item); + } + } + }); + if (!resisting) { + // Hard to predict these values, but we can enforce constraints: + ok(window.mozInnerScreenX >= chromeWindow.mozInnerScreenX, + "mozInnerScreenX"); + ok(window.mozInnerScreenY >= chromeWindow.mozInnerScreenY, + "mozInnerScreenY"); + } + nextTest(); + }); + } + + nextTest(); +} |