michael@0: // # Regression tests for tor Bug #2950, Make Permissions Manager memory-only
michael@0: // Ensures that permissions.sqlite file in profile directory is not written to,
michael@0: // even when we write a value to Firefox's permissions database.
michael@0: 
michael@0: // The requisite test() function.
michael@0: function test() {
michael@0: 
michael@0: // Needed because of asynchronous part later in the test.
michael@0: waitForExplicitFinish();
michael@0: 
michael@0: // Shortcut
michael@0: let Ci = Components.interfaces;
michael@0: 
michael@0: // ## utility functions
michael@0: 
michael@0: // __uri(spec)__.
michael@0: // Creates an nsIURI instance from a spec
michael@0: // (string address such as "http://torproject.org").
michael@0: let uri = spec => Services.io.newURI(spec, null, null);
michael@0: 
michael@0: // __setPermission(spec, key, value)__.
michael@0: // Sets the site permission of type key to value, for the site located at address spec.
michael@0: let setPermission = (spec, key, value) => SitePermissions.set(uri(spec), key, value);
michael@0: 
michael@0: // __getPermission(spec, key)__.
michael@0: // Reads the site permission value for permission type key, for the site
michael@0: // located at address spec.
michael@0: let getPermission = (spec, key) => SitePermissions.get(uri(spec), key);
michael@0: 
michael@0: // __profileDirPath__.
michael@0: // The Firefox Profile directory. Expected location of various persistent files.
michael@0: let profileDirPath = Services.dirsvc.get("ProfD", Components.interfaces.nsIFile).path;
michael@0: 
michael@0: // __fileInProfile(fileName)__.
michael@0: // Returns an nsIFile instance corresponding to a file in the Profile directory.
michael@0: let fileInProfile = fileName => FileUtils.File(profileDirPath + "/" + fileName);
michael@0: 
michael@0: // ## Now let's run the test.
michael@0: 
michael@0: let SITE = "http://torproject.org",
michael@0:     KEY = "popup";
michael@0: 
michael@0: let permissionsFile = fileInProfile("permissions.sqlite"),
michael@0:                       lastModifiedTime = null,
michael@0:                       newModifiedTime = null;
michael@0: if (permissionsFile.exists()) {
michael@0:   lastModifiedTime = permissionsFile.lastModifiedTime;
michael@0: }
michael@0: // Read the original value of the permission.
michael@0: let originalValue = getPermission(SITE, KEY);
michael@0: 
michael@0: // We need to delay by at least 1000 ms, because that's the granularity
michael@0: // of file time stamps, it seems.
michael@0: window.setTimeout(
michael@0:   function () {
michael@0:     // Set the permission to a new value.
michael@0:     setPermission(SITE, KEY, (originalValue === 0) ? 1 : 0);
michael@0:     // Now read back the permission value again.
michael@0:     let newReadValue = getPermission(SITE, KEY);
michael@0:     // Compare to confirm that the permission
michael@0:     // value was successfully changed.
michael@0:     isnot(newReadValue, originalValue, "Set a value in permissions db (perhaps in memory).");;
michael@0:     // If file existed or now exists, get the current time stamp.
michael@0:     if (permissionsFile.exists()) {
michael@0:     	newModifiedTime = permissionsFile.lastModifiedTime;
michael@0:     }
michael@0:     // If file was created or modified since we began this test,
michael@0:     // then permissions db is not memory only. Complain!
michael@0:     is(lastModifiedTime, newModifiedTime, "Don't write to permissions.sqlite file on disk.");
michael@0:     // We are done with the test.
michael@0:     finish();
michael@0:   }, 1100);
michael@0: 
michael@0: } // test()