56274 2011-03-13 15:23:58 -0700 Delegate some read-only DOM properties to FrameLoaderClient and ChromeClient 2012-12-26 07:04:57 -0800 1 1 1 Unclassified WebKit New Bugs 528+ (Nightly build) Other OS X 10.5 RESOLVED WONTFIX P2 Normal --- 41801 56678 1 robert robert abarth ap buildbot cmarcelo darin dglazkov eric gustavo.noronha gustavo mikeperry-webkit morrita robert webkit-ews webkit.review.bot xan.lopez oldest_to_newest 366739 0 robert 2011-03-13 15:23:58 -0700 Delegate some read-only DOM properties to FrameLoaderClient and ChromeClient 366740 1 85625 robert 2011-03-13 15:28:53 -0700 Created attachment 85625 Patch 366741 2 webkit-ews 2011-03-13 15:40:25 -0700 Attachment 85625 did not build on qt: Build output: http://queues.webkit.org/results/8176088 366742 3 webkit.review.bot 2011-03-13 15:50:32 -0700 Attachment 85625 did not build on chromium: Build output: http://queues.webkit.org/results/8181018 366743 4 buildbot 2011-03-13 15:55:27 -0700 Attachment 85625 did not build on win: Build output: http://queues.webkit.org/results/8176093 366747 5 webkit.review.bot 2011-03-13 16:37:52 -0700 Attachment 85625 did not build on chromium: Build output: http://queues.webkit.org/results/8176104 366749 6 gustavo.noronha 2011-03-13 16:57:18 -0700 Attachment 85625 did not build on gtk: Build output: http://queues.webkit.org/results/8176106 366753 7 webkit.review.bot 2011-03-13 17:12:55 -0700 Attachment 85625 did not build on mac: Build output: http://queues.webkit.org/results/8175109 366839 8 85625 abarth 2011-03-13 22:34:41 -0700 Comment on attachment 85625 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=85625&action=review > Source/WebCore/loader/FrameLoaderClient.h:235 > + virtual String referrer(const String& referrer) {return referrer;}; > + virtual String windowName(const String& name) {return name;}; > + virtual unsigned historyLength(unsigned length) {return length;}; No need for ; after these lines. 367154 9 85705 robert 2011-03-14 13:04:08 -0700 Created attachment 85705 Patch 383515 10 morrita 2011-04-11 14:19:59 -0700 > Created an attachment (id=85705) [details] > Patch Just for curious, is it possible to have "drop in" support for fingerprint prevention? It would be great if we can share the mechanism between ports. 383545 11 robert 2011-04-11 14:39:29 -0700 (In reply to comment #10) > > Created an attachment (id=85705) [details] [details] > > Patch > > Just for curious, is it possible to have "drop in" support for fingerprint prevention? > It would be great if we can share the mechanism between ports. Hi Morita, If there are items for which the 'right thing to do' can be agreed on then there's no reason why WebKit couldn't implement them. I'm trying to build up a picture of what those might be at: https://trac.webkit.org/wiki/Fingerprinting 391918 12 85705 japhet 2011-04-25 15:07:59 -0700 Comment on attachment 85705 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=85705&action=review Drive-by comment: > Source/WebCore/loader/FrameLoader.cpp:3365 > String FrameLoader::referrer() const > { > - return m_documentLoader ? m_documentLoader->request().httpReferrer() : ""; > + return m_documentLoader ? m_client->referrer(m_documentLoader->request().httpReferrer()) : ""; > +} I'm pretty sure that this will only change the referrer as displayed to javascript, not what is sent over the network. Is that intentional? I feel like if we're going to hide referrers, we should hide it in both HTTP and JS, not just one or the other. 392407 13 robert 2011-04-26 05:21:16 -0700 (In reply to comment #12) > (From update of attachment 85705 [details]) > View in context: https://bugs.webkit.org/attachment.cgi?id=85705&action=review > > Drive-by comment: > > > Source/WebCore/loader/FrameLoader.cpp:3365 > > String FrameLoader::referrer() const > > { > > - return m_documentLoader ? m_documentLoader->request().httpReferrer() : ""; > > + return m_documentLoader ? m_client->referrer(m_documentLoader->request().httpReferrer()) : ""; > > +} > > I'm pretty sure that this will only change the referrer as displayed to javascript, not what is sent over the network. That's correct, yes. > > Is that intentional? I feel like if we're going to hide referrers, we should hide it in both HTTP and JS, not just one or the other. It's intentional insofar as there is already a mechanism, in some ports at least, for the client to manipulate HTTP headers. In Qt, this is QNetworkAccessManager::createRequest() - which admittedly sits outside WebKit in Qt's case. The other factor is that there may be a better 'generic' rule for making the referrer header more privacy-sensitive in all cases. This is tracked at https://bugs.webkit.org/show_bug.cgi?id=51638 392498 14 ap 2011-04-26 09:15:41 -0700 It would probably be quite confusing that this client call only affects DOM APIs. 396002 15 85705 eric 2011-05-01 12:36:00 -0700 Comment on attachment 85705 Patch I really don't like this design. I think we should have a new AntiFingerprinting class or something that we can optionally pass these values to and have it reply with lies. I don't want to plumb all of these up through the client in every different callsite. Instead, it would be better to plumb through this lier class, which can plumb through the client on ports which care. Then all the anti-fingerprinting logic can be implemented inside WebCore too. 396003 16 eric 2011-05-01 12:37:21 -0700 What I dislike so much about this design is that previously all these simple data values are self-contained inside WebCore. Now they're needlessly piping up through WebKit, which is bad. Only in the anti-fingerprinting case do we need to ask WebKIt. And even then we only need to ask it if we've turne don the anti-fingerprinting stuff, and then the anti-fingerprinting code (which should be inside WebCore) can do the lying. 85625 2011-03-13 15:28:53 -0700 2011-03-14 13:04:03 -0700 Patch bug-56274-20110313222847.patch text/plain 9972 robert U3VidmVyc2lvbiBSZXZpc2lvbjogODA3NDkKZGlmZiAtLWdpdCBhL1NvdXJjZS9XZWJDb3JlL0No YW5nZUxvZyBiL1NvdXJjZS9XZWJDb3JlL0NoYW5nZUxvZwppbmRleCAzYzMwNWRlMjc0ZWNhZDBk NzFkZWNkMmFlN2M4N2U0MzRiMmVlMTU1Li5mYjUwZjRmYTJkMjEzOWQ2YTZmZDU5N2UwMTgzNjA0 OGQ4ZWI1MzE5IDEwMDY0NAotLS0gYS9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKKysrIGIvU291 cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCkBAIC0xLDMgKzEsNTcgQEAKKzIwMTEtMDMtMTMgIFJvYmVy dCBIb2dhbiAgPHJvYmVydEB3ZWJraXQub3JnPgorCisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9E WSAoT09QUyEpLgorCisgICAgICAgIERlbGVnYXRlIHNvbWUgcmVhZC1vbmx5IERPTSBwcm9wZXJ0 aWVzIHRvIEZyYW1lTG9hZGVyQ2xpZW50IGFuZCBDaHJvbWVDbGllbnQKKworICAgICAgICBBbGxv dyBGcmFtZUxvYWRlckNsaWVudCB0byBkZXRlcm1pbmUgdGhlIHZhbHVlcyBmb3IgdGhlCisgICAg 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