1 | /* |
2 | * Copyright (C) 2006-2017 Apple Inc. All rights reserved. |
3 | * Copyright (C) 2012 Google Inc. All rights reserved. |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
8 | * |
9 | * 1. Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * 2. Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
14 | * 3. Neither the name of Apple Inc. ("Apple") nor the names of |
15 | * its contributors may be used to endorse or promote products derived |
16 | * from this software without specific prior written permission. |
17 | * |
18 | * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
19 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
20 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
21 | * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
22 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
23 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
24 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
25 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | */ |
29 | |
30 | #pragma once |
31 | |
32 | #include "FrameLoaderTypes.h" |
33 | #include "LayoutMilestone.h" |
34 | #include "LinkIcon.h" |
35 | #include <functional> |
36 | #include <wtf/Forward.h> |
37 | #include <wtf/WallTime.h> |
38 | #include <wtf/text/WTFString.h> |
39 | |
40 | #if ENABLE(APPLICATION_MANIFEST) |
41 | #include "ApplicationManifest.h" |
42 | #endif |
43 | |
44 | #if ENABLE(CONTENT_FILTERING) |
45 | #include "ContentFilterUnblockHandler.h" |
46 | #endif |
47 | |
48 | #if PLATFORM(COCOA) |
49 | #ifdef __OBJC__ |
50 | #import <Foundation/Foundation.h> |
51 | typedef id RemoteAXObjectRef; |
52 | #else |
53 | typedef void* RemoteAXObjectRef; |
54 | #endif |
55 | #endif |
56 | |
57 | #if PLATFORM(COCOA) |
58 | OBJC_CLASS NSArray; |
59 | OBJC_CLASS NSCachedURLResponse; |
60 | OBJC_CLASS NSDictionary; |
61 | OBJC_CLASS NSView; |
62 | #endif |
63 | |
64 | namespace PAL { |
65 | class SessionID; |
66 | } |
67 | |
68 | namespace WebCore { |
69 | |
70 | class AuthenticationChallenge; |
71 | class CachedFrame; |
72 | class CachedResourceRequest; |
73 | class Color; |
74 | class DOMWindow; |
75 | class DOMWindowExtension; |
76 | class DOMWrapperWorld; |
77 | class DocumentLoader; |
78 | class Element; |
79 | class FormState; |
80 | class Frame; |
81 | class FrameLoader; |
82 | class FrameNetworkingContext; |
83 | class HTMLAppletElement; |
84 | class HTMLFormElement; |
85 | class HTMLFrameOwnerElement; |
86 | class HTMLPlugInElement; |
87 | class HistoryItem; |
88 | class IntSize; |
89 | class MessageEvent; |
90 | class NavigationAction; |
91 | class Page; |
92 | class PluginViewBase; |
93 | class PreviewLoaderClient; |
94 | class ProtectionSpace; |
95 | class RTCPeerConnectionHandler; |
96 | class ResourceError; |
97 | class ResourceHandle; |
98 | class ResourceRequest; |
99 | class ResourceResponse; |
100 | class SecurityOrigin; |
101 | class SharedBuffer; |
102 | class SubstituteData; |
103 | class Widget; |
104 | |
105 | enum class LockBackForwardList : bool; |
106 | enum class PolicyDecisionMode; |
107 | |
108 | struct StringWithDirection; |
109 | |
110 | typedef WTF::Function<void (PolicyAction, PolicyCheckIdentifier)> FramePolicyFunction; |
111 | |
112 | class WEBCORE_EXPORT FrameLoaderClient { |
113 | WTF_MAKE_FAST_ALLOCATED; |
114 | public: |
115 | // An inline function cannot be the first non-abstract virtual function declared |
116 | // in the class as it results in the vtable being generated as a weak symbol. |
117 | // This hurts performance (in Mac OS X at least, when loading frameworks), so we |
118 | // don't want to do it in WebKit. |
119 | virtual bool hasHTMLView() const; |
120 | |
121 | virtual ~FrameLoaderClient() = default; |
122 | |
123 | virtual void frameLoaderDestroyed() = 0; |
124 | |
125 | virtual bool hasWebView() const = 0; // mainly for assertions |
126 | |
127 | virtual void makeRepresentation(DocumentLoader*) = 0; |
128 | |
129 | virtual Optional<uint64_t> pageID() const = 0; |
130 | virtual Optional<uint64_t> frameID() const = 0; |
131 | virtual PAL::SessionID sessionID() const = 0; |
132 | |
133 | #if PLATFORM(IOS_FAMILY) |
134 | // Returns true if the client forced the layout. |
135 | virtual bool forceLayoutOnRestoreFromPageCache() = 0; |
136 | #endif |
137 | virtual void forceLayoutForNonHTML() = 0; |
138 | |
139 | virtual void setCopiesOnScroll() = 0; |
140 | |
141 | virtual void detachedFromParent2() = 0; |
142 | virtual void detachedFromParent3() = 0; |
143 | |
144 | virtual void assignIdentifierToInitialRequest(unsigned long identifier, DocumentLoader*, const ResourceRequest&) = 0; |
145 | |
146 | virtual void dispatchWillSendRequest(DocumentLoader*, unsigned long identifier, ResourceRequest&, const ResourceResponse& redirectResponse) = 0; |
147 | virtual bool shouldUseCredentialStorage(DocumentLoader*, unsigned long identifier) = 0; |
148 | virtual void dispatchDidReceiveAuthenticationChallenge(DocumentLoader*, unsigned long identifier, const AuthenticationChallenge&) = 0; |
149 | #if USE(PROTECTION_SPACE_AUTH_CALLBACK) |
150 | virtual bool canAuthenticateAgainstProtectionSpace(DocumentLoader*, unsigned long identifier, const ProtectionSpace&) = 0; |
151 | #endif |
152 | |
153 | #if PLATFORM(IOS_FAMILY) |
154 | virtual RetainPtr<CFDictionaryRef> connectionProperties(DocumentLoader*, unsigned long identifier) = 0; |
155 | #endif |
156 | |
157 | virtual void dispatchDidReceiveResponse(DocumentLoader*, unsigned long identifier, const ResourceResponse&) = 0; |
158 | virtual void dispatchDidReceiveContentLength(DocumentLoader*, unsigned long identifier, int dataLength) = 0; |
159 | virtual void dispatchDidFinishLoading(DocumentLoader*, unsigned long identifier) = 0; |
160 | virtual void dispatchDidFailLoading(DocumentLoader*, unsigned long identifier, const ResourceError&) = 0; |
161 | virtual bool dispatchDidLoadResourceFromMemoryCache(DocumentLoader*, const ResourceRequest&, const ResourceResponse&, int length) = 0; |
162 | |
163 | virtual void dispatchDidDispatchOnloadEvents() = 0; |
164 | virtual void dispatchDidReceiveServerRedirectForProvisionalLoad() = 0; |
165 | virtual void dispatchDidChangeProvisionalURL() { } |
166 | virtual void dispatchDidCancelClientRedirect() = 0; |
167 | virtual void dispatchWillPerformClientRedirect(const URL&, double interval, WallTime fireDate, LockBackForwardList) = 0; |
168 | virtual void dispatchDidChangeMainDocument() { } |
169 | virtual void dispatchWillChangeDocument(const URL&, const URL&) { } |
170 | virtual void dispatchDidNavigateWithinPage() { } |
171 | virtual void dispatchDidChangeLocationWithinPage() = 0; |
172 | virtual void dispatchDidPushStateWithinPage() = 0; |
173 | virtual void dispatchDidReplaceStateWithinPage() = 0; |
174 | virtual void dispatchDidPopStateWithinPage() = 0; |
175 | virtual void dispatchWillClose() = 0; |
176 | virtual void dispatchDidReceiveIcon() { } |
177 | virtual void dispatchDidStartProvisionalLoad() = 0; |
178 | virtual void dispatchDidReceiveTitle(const StringWithDirection&) = 0; |
179 | virtual void dispatchDidCommitLoad(Optional<HasInsecureContent>) = 0; |
180 | virtual void dispatchDidFailProvisionalLoad(const ResourceError&, WillContinueLoading) = 0; |
181 | virtual void dispatchDidFailLoad(const ResourceError&) = 0; |
182 | virtual void dispatchDidFinishDocumentLoad() = 0; |
183 | virtual void dispatchDidFinishLoad() = 0; |
184 | virtual void dispatchDidExplicitOpen(const URL&) { } |
185 | #if ENABLE(DATA_DETECTION) |
186 | virtual void dispatchDidFinishDataDetection(NSArray *detectionResults) = 0; |
187 | #endif |
188 | |
189 | virtual void dispatchDidLayout() { } |
190 | virtual void dispatchDidReachLayoutMilestone(OptionSet<LayoutMilestone>) { } |
191 | |
192 | virtual Frame* dispatchCreatePage(const NavigationAction&) = 0; |
193 | virtual void dispatchShow() = 0; |
194 | |
195 | virtual void dispatchDecidePolicyForResponse(const ResourceResponse&, const ResourceRequest&, PolicyCheckIdentifier, const String& downloadAttribute, FramePolicyFunction&&) = 0; |
196 | virtual void dispatchDecidePolicyForNewWindowAction(const NavigationAction&, const ResourceRequest&, FormState*, const String& frameName, PolicyCheckIdentifier, FramePolicyFunction&&) = 0; |
197 | virtual void dispatchDecidePolicyForNavigationAction(const NavigationAction&, const ResourceRequest&, const ResourceResponse& redirectResponse, FormState*, PolicyDecisionMode, PolicyCheckIdentifier, FramePolicyFunction&&) = 0; |
198 | virtual void cancelPolicyCheck() = 0; |
199 | |
200 | virtual void dispatchUnableToImplementPolicy(const ResourceError&) = 0; |
201 | |
202 | virtual void dispatchWillSendSubmitEvent(Ref<FormState>&&) = 0; |
203 | virtual void dispatchWillSubmitForm(FormState&, CompletionHandler<void()>&&) = 0; |
204 | |
205 | virtual void revertToProvisionalState(DocumentLoader*) = 0; |
206 | virtual void setMainDocumentError(DocumentLoader*, const ResourceError&) = 0; |
207 | |
208 | virtual void setMainFrameDocumentReady(bool) = 0; |
209 | |
210 | virtual void startDownload(const ResourceRequest&, const String& suggestedName = String()) = 0; |
211 | |
212 | virtual void willChangeTitle(DocumentLoader*) = 0; |
213 | virtual void didChangeTitle(DocumentLoader*) = 0; |
214 | |
215 | virtual void willReplaceMultipartContent() = 0; |
216 | virtual void didReplaceMultipartContent() = 0; |
217 | |
218 | virtual void committedLoad(DocumentLoader*, const char*, int) = 0; |
219 | virtual void finishedLoading(DocumentLoader*) = 0; |
220 | |
221 | virtual void updateGlobalHistory() = 0; |
222 | virtual void updateGlobalHistoryRedirectLinks() = 0; |
223 | |
224 | virtual bool shouldGoToHistoryItem(HistoryItem&) const = 0; |
225 | |
226 | // This frame has set its opener to null, disowning it for the lifetime of the frame. |
227 | // See http://html.spec.whatwg.org/#dom-opener. |
228 | // FIXME: JSC should allow disowning opener. - <https://bugs.webkit.org/show_bug.cgi?id=103913>. |
229 | virtual void didDisownOpener() { } |
230 | |
231 | // This frame has displayed inactive content (such as an image) from an |
232 | // insecure source. Inactive content cannot spread to other frames. |
233 | virtual void didDisplayInsecureContent() = 0; |
234 | |
235 | // The indicated security origin has run active content (such as a |
236 | // script) from an insecure source. Note that the insecure content can |
237 | // spread to other frames in the same origin. |
238 | virtual void didRunInsecureContent(SecurityOrigin&, const URL&) = 0; |
239 | virtual void didDetectXSS(const URL&, bool didBlockEntirePage) = 0; |
240 | |
241 | virtual ResourceError cancelledError(const ResourceRequest&) = 0; |
242 | virtual ResourceError blockedError(const ResourceRequest&) = 0; |
243 | virtual ResourceError blockedByContentBlockerError(const ResourceRequest&) = 0; |
244 | virtual ResourceError cannotShowURLError(const ResourceRequest&) = 0; |
245 | virtual ResourceError interruptedForPolicyChangeError(const ResourceRequest&) = 0; |
246 | #if ENABLE(CONTENT_FILTERING) |
247 | virtual ResourceError blockedByContentFilterError(const ResourceRequest&) = 0; |
248 | #endif |
249 | |
250 | virtual ResourceError cannotShowMIMETypeError(const ResourceResponse&) = 0; |
251 | virtual ResourceError fileDoesNotExistError(const ResourceResponse&) = 0; |
252 | virtual ResourceError pluginWillHandleLoadError(const ResourceResponse&) = 0; |
253 | |
254 | virtual bool shouldFallBack(const ResourceError&) = 0; |
255 | |
256 | virtual bool canHandleRequest(const ResourceRequest&) const = 0; |
257 | virtual bool canShowMIMEType(const String& MIMEType) const = 0; |
258 | virtual bool canShowMIMETypeAsHTML(const String& MIMEType) const = 0; |
259 | virtual bool representationExistsForURLScheme(const String& URLScheme) const = 0; |
260 | virtual String generatedMIMETypeForURLScheme(const String& URLScheme) const = 0; |
261 | |
262 | virtual void frameLoadCompleted() = 0; |
263 | virtual void saveViewStateToItem(HistoryItem&) = 0; |
264 | virtual void restoreViewState() = 0; |
265 | virtual void provisionalLoadStarted() = 0; |
266 | virtual void didFinishLoad() = 0; |
267 | virtual void prepareForDataSourceReplacement() = 0; |
268 | |
269 | virtual Ref<DocumentLoader> createDocumentLoader(const ResourceRequest&, const SubstituteData&) = 0; |
270 | virtual void updateCachedDocumentLoader(DocumentLoader&) = 0; |
271 | virtual void setTitle(const StringWithDirection&, const URL&) = 0; |
272 | |
273 | virtual String userAgent(const URL&) = 0; |
274 | |
275 | virtual String overrideContentSecurityPolicy() const { return String(); } |
276 | |
277 | virtual void savePlatformDataToCachedFrame(CachedFrame*) = 0; |
278 | virtual void transitionToCommittedFromCachedFrame(CachedFrame*) = 0; |
279 | #if PLATFORM(IOS_FAMILY) |
280 | virtual void didRestoreFrameHierarchyForCachedFrame() = 0; |
281 | #endif |
282 | virtual void transitionToCommittedForNewPage() = 0; |
283 | |
284 | virtual void didSaveToPageCache() = 0; |
285 | virtual void didRestoreFromPageCache() = 0; |
286 | |
287 | virtual void dispatchDidBecomeFrameset(bool) = 0; // Can change due to navigation or DOM modification. |
288 | |
289 | virtual bool canCachePage() const = 0; |
290 | virtual void convertMainResourceLoadToDownload(DocumentLoader*, PAL::SessionID, const ResourceRequest&, const ResourceResponse&) = 0; |
291 | |
292 | virtual RefPtr<Frame> createFrame(const URL&, const String& name, HTMLFrameOwnerElement&, const String& referrer) = 0; |
293 | virtual RefPtr<Widget> createPlugin(const IntSize&, HTMLPlugInElement&, const URL&, const Vector<String>&, const Vector<String>&, const String&, bool loadManually) = 0; |
294 | virtual void redirectDataToPlugin(Widget&) = 0; |
295 | |
296 | virtual RefPtr<Widget> createJavaAppletWidget(const IntSize&, HTMLAppletElement&, const URL& baseURL, const Vector<String>& paramNames, const Vector<String>& paramValues) = 0; |
297 | |
298 | virtual ObjectContentType objectContentType(const URL&, const String& mimeType) = 0; |
299 | virtual String overrideMediaType() const = 0; |
300 | |
301 | virtual void dispatchDidClearWindowObjectInWorld(DOMWrapperWorld&) = 0; |
302 | |
303 | virtual void registerForIconNotification() { } |
304 | |
305 | #if PLATFORM(COCOA) |
306 | // Allow an accessibility object to retrieve a Frame parent if there's no PlatformWidget. |
307 | virtual RemoteAXObjectRef accessibilityRemoteObject() = 0; |
308 | virtual void willCacheResponse(DocumentLoader*, unsigned long identifier, NSCachedURLResponse*, CompletionHandler<void(NSCachedURLResponse *)>&&) const = 0; |
309 | virtual NSDictionary *dataDetectionContext() { return nullptr; } |
310 | #endif |
311 | |
312 | #if USE(CFURLCONNECTION) |
313 | // FIXME: Windows should use willCacheResponse - <https://bugs.webkit.org/show_bug.cgi?id=57257>. |
314 | virtual bool shouldCacheResponse(DocumentLoader*, unsigned long identifier, const ResourceResponse&, const unsigned char* data, unsigned long long length) = 0; |
315 | #endif |
316 | |
317 | virtual bool shouldAlwaysUsePluginDocument(const String& /*mimeType*/) const { return false; } |
318 | virtual bool shouldLoadMediaElementURL(const URL&) const { return true; } |
319 | |
320 | virtual void didChangeScrollOffset() { } |
321 | |
322 | virtual bool allowScript(bool enabledPerSettings) { return enabledPerSettings; } |
323 | |
324 | // Clients that generally disallow universal access can make exceptions for particular URLs. |
325 | virtual bool shouldForceUniversalAccessFromLocalURL(const URL&) { return false; } |
326 | |
327 | virtual Ref<FrameNetworkingContext> createNetworkingContext() = 0; |
328 | |
329 | virtual bool shouldPaintBrokenImage(const URL&) const { return true; } |
330 | |
331 | virtual void dispatchGlobalObjectAvailable(DOMWrapperWorld&) { } |
332 | virtual void dispatchWillDisconnectDOMWindowExtensionFromGlobalObject(DOMWindowExtension*) { } |
333 | virtual void dispatchDidReconnectDOMWindowExtensionToGlobalObject(DOMWindowExtension*) { } |
334 | virtual void dispatchWillDestroyGlobalObjectForDOMWindowExtension(DOMWindowExtension*) { } |
335 | |
336 | virtual void willInjectUserScript(DOMWrapperWorld&) { } |
337 | |
338 | #if ENABLE(WEB_RTC) |
339 | virtual void dispatchWillStartUsingPeerConnectionHandler(RTCPeerConnectionHandler*) { } |
340 | #endif |
341 | |
342 | #if ENABLE(WEBGL) |
343 | virtual bool allowWebGL(bool enabledPerSettings) { return enabledPerSettings; } |
344 | // Informs the embedder that a WebGL canvas inside this frame received a lost context |
345 | // notification with the given GL_ARB_robustness guilt/innocence code (see Extensions3D.h). |
346 | virtual void didLoseWebGLContext(int) { } |
347 | virtual WebGLLoadPolicy webGLPolicyForURL(const URL&) const { return WebGLAllowCreation; } |
348 | virtual WebGLLoadPolicy resolveWebGLPolicyForURL(const URL&) const { return WebGLAllowCreation; } |
349 | #endif |
350 | |
351 | virtual void forcePageTransitionIfNeeded() { } |
352 | |
353 | // FIXME (bug 116233): We need to get rid of EmptyFrameLoaderClient completely, then this will no longer be needed. |
354 | virtual bool isEmptyFrameLoaderClient() { return false; } |
355 | |
356 | #if USE(QUICK_LOOK) |
357 | virtual RefPtr<PreviewLoaderClient> createPreviewLoaderClient(const String&, const String&) = 0; |
358 | #endif |
359 | |
360 | #if ENABLE(CONTENT_FILTERING) |
361 | virtual void contentFilterDidBlockLoad(ContentFilterUnblockHandler) { } |
362 | #endif |
363 | |
364 | virtual void prefetchDNS(const String&) = 0; |
365 | |
366 | virtual void didRestoreScrollPosition() { } |
367 | |
368 | virtual void getLoadDecisionForIcons(const Vector<std::pair<WebCore::LinkIcon&, uint64_t>>&) { } |
369 | virtual void finishedLoadingIcon(uint64_t, SharedBuffer*) { } |
370 | |
371 | virtual void didCreateWindow(DOMWindow&) { } |
372 | |
373 | #if ENABLE(APPLICATION_MANIFEST) |
374 | virtual void finishedLoadingApplicationManifest(uint64_t, const Optional<ApplicationManifest>&) { } |
375 | #endif |
376 | |
377 | #if ENABLE(RESOURCE_LOAD_STATISTICS) |
378 | virtual bool hasFrameSpecificStorageAccess() { return false; } |
379 | virtual void setHasFrameSpecificStorageAccess(bool) { } |
380 | #endif |
381 | }; |
382 | |
383 | } // namespace WebCore |
384 | |