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      1 /*
      2  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
      3  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
      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  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #include "config.h"
     28 #include "core/page/CreateWindow.h"
     29 
     30 #include "core/dom/Document.h"
     31 #include "core/frame/FrameHost.h"
     32 #include "core/frame/LocalFrame.h"
     33 #include "core/frame/Settings.h"
     34 #include "core/loader/FrameLoadRequest.h"
     35 #include "core/page/Chrome.h"
     36 #include "core/page/ChromeClient.h"
     37 #include "core/page/FocusController.h"
     38 #include "core/page/Page.h"
     39 #include "core/page/WindowFeatures.h"
     40 #include "platform/network/ResourceRequest.h"
     41 #include "platform/weborigin/KURL.h"
     42 #include "platform/weborigin/SecurityOrigin.h"
     43 #include "platform/weborigin/SecurityPolicy.h"
     44 
     45 namespace WebCore {
     46 
     47 static LocalFrame* createWindow(LocalFrame& openerFrame, LocalFrame& lookupFrame, const FrameLoadRequest& request, const WindowFeatures& features, NavigationPolicy policy, ShouldSendReferrer shouldSendReferrer, bool& created)
     48 {
     49     ASSERT(!features.dialog || request.frameName().isEmpty());
     50 
     51     if (!request.frameName().isEmpty() && request.frameName() != "_blank" && policy == NavigationPolicyIgnore) {
     52         if (LocalFrame* frame = lookupFrame.loader().findFrameForNavigation(request.frameName(), openerFrame.document())) {
     53             if (request.frameName() != "_self")
     54                 frame->page()->focusController().setFocusedFrame(frame);
     55             created = false;
     56             return frame;
     57         }
     58     }
     59 
     60     // Sandboxed frames cannot open new auxiliary browsing contexts.
     61     if (openerFrame.document()->isSandboxed(SandboxPopups)) {
     62         // FIXME: This message should be moved off the console once a solution to https://bugs.webkit.org/show_bug.cgi?id=103274 exists.
     63         openerFrame.document()->addConsoleMessage(SecurityMessageSource, ErrorMessageLevel, "Blocked opening '" + request.resourceRequest().url().elidedString() + "' in a new window because the request was made in a sandboxed frame whose 'allow-popups' permission is not set.");
     64         return 0;
     65     }
     66 
     67     if (openerFrame.settings() && !openerFrame.settings()->supportsMultipleWindows()) {
     68         created = false;
     69         if (!openerFrame.tree().top()->isLocalFrame())
     70             return 0;
     71         return toLocalFrame(openerFrame.tree().top());
     72     }
     73 
     74     Page* oldPage = openerFrame.page();
     75     if (!oldPage)
     76         return 0;
     77 
     78     Page* page = oldPage->chrome().client().createWindow(&openerFrame, request, features, policy, shouldSendReferrer);
     79     if (!page || !page->mainFrame()->isLocalFrame())
     80         return 0;
     81     FrameHost* host = &page->frameHost();
     82 
     83     ASSERT(page->mainFrame());
     84     LocalFrame& frame = *page->deprecatedLocalMainFrame();
     85 
     86     if (request.frameName() != "_blank")
     87         frame.tree().setName(request.frameName());
     88 
     89     host->chrome().setWindowFeatures(features);
     90 
     91     // 'x' and 'y' specify the location of the window, while 'width' and 'height'
     92     // specify the size of the viewport. We can only resize the window, so adjust
     93     // for the difference between the window size and the viewport size.
     94 
     95     FloatRect windowRect = host->chrome().windowRect();
     96     FloatSize viewportSize = host->chrome().pageRect().size();
     97 
     98     if (features.xSet)
     99         windowRect.setX(features.x);
    100     if (features.ySet)
    101         windowRect.setY(features.y);
    102     if (features.widthSet)
    103         windowRect.setWidth(features.width + (windowRect.width() - viewportSize.width()));
    104     if (features.heightSet)
    105         windowRect.setHeight(features.height + (windowRect.height() - viewportSize.height()));
    106 
    107     // Ensure non-NaN values, minimum size as well as being within valid screen area.
    108     FloatRect newWindowRect = LocalDOMWindow::adjustWindowRect(frame, windowRect);
    109 
    110     host->chrome().setWindowRect(newWindowRect);
    111     host->chrome().show(policy);
    112 
    113     created = true;
    114     return &frame;
    115 }
    116 
    117 LocalFrame* createWindow(const String& urlString, const AtomicString& frameName, const WindowFeatures& windowFeatures,
    118     LocalDOMWindow& callingWindow, LocalFrame& firstFrame, LocalFrame& openerFrame, LocalDOMWindow::PrepareDialogFunction function, void* functionContext)
    119 {
    120     LocalFrame* activeFrame = callingWindow.frame();
    121     ASSERT(activeFrame);
    122 
    123     KURL completedURL = urlString.isEmpty() ? KURL(ParsedURLString, emptyString()) : firstFrame.document()->completeURL(urlString);
    124     if (!completedURL.isEmpty() && !completedURL.isValid()) {
    125         // Don't expose client code to invalid URLs.
    126         callingWindow.printErrorMessage("Unable to open a window with invalid URL '" + completedURL.string() + "'.\n");
    127         return 0;
    128     }
    129 
    130     // For whatever reason, Firefox uses the first frame to determine the outgoingReferrer. We replicate that behavior here.
    131     Referrer referrer(SecurityPolicy::generateReferrerHeader(firstFrame.document()->referrerPolicy(), completedURL, firstFrame.document()->outgoingReferrer()), firstFrame.document()->referrerPolicy());
    132 
    133     ResourceRequest request(completedURL, referrer);
    134     FrameLoader::addHTTPOriginIfNeeded(request, AtomicString(firstFrame.document()->outgoingOrigin()));
    135     FrameLoadRequest frameRequest(callingWindow.document(), request, frameName);
    136 
    137     // We pass the opener frame for the lookupFrame in case the active frame is different from
    138     // the opener frame, and the name references a frame relative to the opener frame.
    139     bool created;
    140     LocalFrame* newFrame = createWindow(*activeFrame, openerFrame, frameRequest, windowFeatures, NavigationPolicyIgnore, MaybeSendReferrer, created);
    141     if (!newFrame)
    142         return 0;
    143 
    144     if (newFrame != &openerFrame && newFrame != openerFrame.tree().top())
    145         newFrame->loader().forceSandboxFlags(openerFrame.document()->sandboxFlags());
    146 
    147     newFrame->loader().setOpener(&openerFrame);
    148 
    149     if (newFrame->domWindow()->isInsecureScriptAccess(callingWindow, completedURL))
    150         return newFrame;
    151 
    152     if (function)
    153         function(newFrame->domWindow(), functionContext);
    154 
    155     if (created) {
    156         FrameLoadRequest request(callingWindow.document(), ResourceRequest(completedURL, referrer));
    157         newFrame->loader().load(request);
    158     } else if (!urlString.isEmpty()) {
    159         newFrame->navigationScheduler().scheduleLocationChange(callingWindow.document(), completedURL.string(), referrer, false);
    160     }
    161     return newFrame;
    162 }
    163 
    164 void createWindowForRequest(const FrameLoadRequest& request, LocalFrame& openerFrame, NavigationPolicy policy, ShouldSendReferrer shouldSendReferrer)
    165 {
    166     if (openerFrame.document()->pageDismissalEventBeingDispatched() != Document::NoDismissal)
    167         return;
    168 
    169     if (openerFrame.document() && openerFrame.document()->isSandboxed(SandboxPopups))
    170         return;
    171 
    172     if (!LocalDOMWindow::allowPopUp(openerFrame))
    173         return;
    174 
    175     if (policy == NavigationPolicyCurrentTab)
    176         policy = NavigationPolicyNewForegroundTab;
    177 
    178     WindowFeatures features;
    179     bool created;
    180     LocalFrame* newFrame = createWindow(openerFrame, openerFrame, request, features, policy, shouldSendReferrer, created);
    181     if (!newFrame)
    182         return;
    183     if (shouldSendReferrer == MaybeSendReferrer) {
    184         newFrame->loader().setOpener(&openerFrame);
    185         newFrame->document()->setReferrerPolicy(openerFrame.document()->referrerPolicy());
    186     }
    187     FrameLoadRequest newRequest(0, request.resourceRequest());
    188     newRequest.setFormState(request.formState());
    189     newFrame->loader().load(newRequest);
    190 }
    191 
    192 } // namespace WebCore
    193