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7e5727b51a
Use nsISubstitutingProtocolHandler to return a SubstitutingURL and to resolve the thumbnail URL to the backing nsIFile. Now the image loader code will realise that moz-page-thumb:// URLs are backed by a file and will be able to use the file mtime to evaluate whether the cached imgRequest has expired. * Implement the nsISubstitutingProtocolHandler methods in the thumbnail protocol handler. The resolveURI method does all the work, the other methods are just stubs. * moz-page-thumb:// is now an URL rather than an URI, so update the signature accordingly. * Add xpcshell-test to affirm that SubstitutingURL::EnsureFile() resolves the backing file correctly. * Adjust the mochitest to account for the one second granularity of the mtime tracking.
31 lines
1.3 KiB
JavaScript
31 lines
1.3 KiB
JavaScript
// tests to check that moz-page-thumb URLs correctly resolve as file:// URLS
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"use strict";
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const Cu = Components.utils;
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const Cc = Components.classes;
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const Cr = Components.results;
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const Ci = Components.interfaces;
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Cu.import("resource://gre/modules/Services.jsm");
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// need profile so that PageThumbsStorage can resolve the path to the underlying file
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do_get_profile();
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function run_test() {
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// first check the protocol handler implements the correct interface
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let handler = Services.io.getProtocolHandler("moz-page-thumb");
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ok(handler instanceof Ci.nsISubstitutingProtocolHandler,
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"moz-page-thumb handler provides substituting interface");
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// then check that the file URL resolution works
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let uri = Services.io.newURI("moz-page-thumb://thumbnail/?url=http%3A%2F%2Fwww.mozilla.org%2F",
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null, null);
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ok(uri instanceof Ci.nsIFileURL, "moz-page-thumb:// is a FileURL");
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ok(uri.file, "This moz-page-thumb:// object is backed by a file");
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// and check that the error case works as specified
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let bad = Services.io.newURI("moz-page-thumb://wronghost/?url=http%3A%2F%2Fwww.mozilla.org%2F",
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null, null);
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Assert.throws(() => handler.resolveURI(bad), /NS_ERROR_NOT_AVAILABLE/i,
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"moz-page-thumb object with wrong host must not resolve to a file path");
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}
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