1 files changed, 154 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_mismatch_last-modified.js b/netwerk/test/unit/test_mismatch_last-modified.js
new file mode 100644
index 000000000..f675a123f
--- /dev/null
+++ b/netwerk/test/unit/test_mismatch_last-modified.js
@@ -0,0 +1,154 @@
+Cu.import("resource://testing-common/httpd.js");
+Cu.import("resource://gre/modules/NetUtil.jsm");
+var httpserver = new HttpServer();
+
+var ios;
+
+// Test the handling of a cache revalidation with mismatching last-modified
+// headers. If we get such a revalidation the cache entry should be purged.
+// see bug 717350
+
+// In this test the wrong data is from 11-16-1994 with a value of 'A',
+// and the right data is from 11-15-1994 with a value of 'B'.
+
+// the same URL is requested 3 times. the first time the wrong data comes
+// back, the second time that wrong data is revalidated with a 304 but
+// a L-M header of the right data (this triggers a cache purge), and
+// the third time the right data is returned.
+
+var listener_3 = {
+    // this listener is used to process the the request made after
+    // the cache invalidation. it expects to see the 'right data'
+
+    QueryInterface: function(iid) {
+	if (iid.equals(Components.interfaces.nsIStreamListener) ||
+            iid.equals(Components.interfaces.nsIRequestObserver) ||
+            iid.equals(Components.interfaces.nsISupports))
+	    return this;
+	throw Components.results.NS_ERROR_NO_INTERFACE;
+    },
+
+    onStartRequest: function test_onStartR(request, ctx) {},
+    
+    onDataAvailable: function test_ODA(request, cx, inputStream,
+                                       offset, count) {
+	var data = new BinaryInputStream(inputStream).readByteArray(count);
+      
+	do_check_eq(data[0], "B".charCodeAt(0));
+    },
+
+    onStopRequest: function test_onStopR(request, ctx, status) {
+	httpserver.stop(do_test_finished);
+    }
+};
+
+XPCOMUtils.defineLazyGetter(this, "listener_2", function() {
+    return {
+    // this listener is used to process the revalidation of the
+    // corrupted cache entry. its revalidation prompts it to be cleaned
+
+    QueryInterface: function(iid) {
+	if (iid.equals(Components.interfaces.nsIStreamListener) ||
+            iid.equals(Components.interfaces.nsIRequestObserver) ||
+            iid.equals(Components.interfaces.nsISupports))
+	    return this;
+	throw Components.results.NS_ERROR_NO_INTERFACE;
+    },
+
+    onStartRequest: function test_onStartR(request, ctx) {},
+    
+    onDataAvailable: function test_ODA(request, cx, inputStream,
+                                       offset, count) {
+	var data = new BinaryInputStream(inputStream).readByteArray(count);
+      
+	// This is 'A' from a cache revalidation, but that reval will clean the cache
+	// because of mismatched last-modified response headers
+	
+	do_check_eq(data[0], "A".charCodeAt(0));
+    },
+
+    onStopRequest: function test_onStopR(request, ctx, status) {
+    var channel = request.QueryInterface(Ci.nsIHttpChannel);
+    var chan = NetUtil.newChannel({
+      uri: "http://localhost:" + httpserver.identity.primaryPort + "/test1",
+      loadUsingSystemPrincipal: true
+    });
+    chan.asyncOpen2(listener_3);
+    }
+};
+});
+
+XPCOMUtils.defineLazyGetter(this, "listener_1", function() {
+    return {
+    // this listener processes the initial request from a empty cache.
+    // the server responds with the wrong data ('A')
+
+    QueryInterface: function(iid) {
+	if (iid.equals(Components.interfaces.nsIStreamListener) ||
+            iid.equals(Components.interfaces.nsIRequestObserver) ||
+            iid.equals(Components.interfaces.nsISupports))
+	    return this;
+	throw Components.results.NS_ERROR_NO_INTERFACE;
+    },
+
+    onStartRequest: function test_onStartR(request, ctx) {},
+    
+    onDataAvailable: function test_ODA(request, cx, inputStream,
+                                       offset, count) {
+	var data = new BinaryInputStream(inputStream).readByteArray(count);
+	do_check_eq(data[0], "A".charCodeAt(0));
+    },
+
+    onStopRequest: function test_onStopR(request, ctx, status) {
+    var channel = request.QueryInterface(Ci.nsIHttpChannel);
+    var chan = NetUtil.newChannel({
+      uri: "http://localhost:" + httpserver.identity.primaryPort + "/test1",
+      loadUsingSystemPrincipal: true
+    });
+	  chan.asyncOpen2(listener_2);
+    }
+};
+});
+
+function run_test() {
+    do_get_profile();
+    ios = Cc["@mozilla.org/network/io-service;1"]
+            .getService(Ci.nsIIOService);
+
+    evict_cache_entries();
+
+    httpserver.registerPathHandler("/test1", handler);
+    httpserver.start(-1);
+
+    var port = httpserver.identity.primaryPort;
+    var chan = NetUtil.newChannel({
+      uri: "http://localhost:" + port + "/test1",
+      loadUsingSystemPrincipal: true
+    });
+    chan.asyncOpen2(listener_1);
+
+    do_test_pending();
+}
+
+var iter=0;
+function handler(metadata, response) {
+    iter++;
+    if (metadata.hasHeader("If-Modified-Since")) {
+	response.setStatusLine(metadata.httpVersion, 304, "Not Modified");
+	response.setHeader("Last-Modified", "Tue, 15 Nov 1994 12:45:26 GMT", false);
+    }    
+    else {
+	response.setStatusLine(metadata.httpVersion, 200, "OK");
+	response.setHeader("Cache-Control", "max-age=0", false)
+	if (iter == 1) {
+	    // simulated wrong response
+	    response.setHeader("Last-Modified", "Wed, 16 Nov 1994 00:00:00 GMT", false);
+	    response.bodyOutputStream.write("A", 1);
+	}
+	if (iter == 3) {
+	    // 'correct' response
+	    response.setHeader("Last-Modified", "Tue, 15 Nov 1994 12:45:26 GMT", false);
+	    response.bodyOutputStream.write("B", 1);
+	}
+    }
+}