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30 #ifndef DocumentLoader_h
31 #define DocumentLoader_h
33 #include "core/fetch/RawResource.h"
34 #include "core/fetch/ResourceLoaderOptions.h"
35 #include "core/fetch/ResourcePtr.h"
36 #include "core/frame/csp/ContentSecurityPolicy.h"
37 #include "core/loader/DocumentLoadTiming.h"
38 #include "core/loader/DocumentWriter.h"
39 #include "core/loader/NavigationAction.h"
40 #include "core/loader/SubstituteData.h"
41 #include "platform/network/ResourceError.h"
42 #include "platform/network/ResourceRequest.h"
43 #include "platform/network/ResourceResponse.h"
44 #include "wtf/HashSet.h"
45 #include "wtf/RefPtr.h"
48 class WebThreadedDataReceiver;
52 class ApplicationCacheHost;
53 class ArchiveResourceCollection;
54 class ResourceFetcher;
61 class DocumentLoader : public RefCounted<DocumentLoader>, private RawResourceClient {
62 WTF_MAKE_FAST_ALLOCATED;
64 static PassRefPtr<DocumentLoader> create(LocalFrame* frame, const ResourceRequest& request, const SubstituteData& data)
66 return adoptRef(new DocumentLoader(frame, request, data));
68 virtual ~DocumentLoader();
70 LocalFrame* frame() const { return m_frame; }
72 void detachFromFrame();
74 unsigned long mainResourceIdentifier() const;
76 void replaceDocumentWhileExecutingJavaScriptURL(const DocumentInit&, const String& source, Document*);
78 const AtomicString& mimeType() const;
80 void setUserChosenEncoding(const String& charset);
82 const ResourceRequest& originalRequest() const;
84 const ResourceRequest& request() const;
86 ResourceFetcher* fetcher() const { return m_fetcher.get(); }
88 const SubstituteData& substituteData() const { return m_substituteData; }
90 const KURL& url() const;
91 const KURL& unreachableURL() const;
92 const KURL& urlForHistory() const;
94 const AtomicString& responseMIMEType() const;
96 void updateForSameDocumentNavigation(const KURL&, SameDocumentNavigationSource);
98 bool isCommitted() const { return m_committed; }
99 bool isLoading() const;
100 bool isLoadingMainResource() const { return m_loadingMainResource; }
101 const ResourceResponse& response() const { return m_response; }
102 const ResourceError& mainDocumentError() const { return m_mainDocumentError; }
103 bool isClientRedirect() const { return m_isClientRedirect; }
104 void setIsClientRedirect(bool isClientRedirect) { m_isClientRedirect = isClientRedirect; }
105 bool replacesCurrentHistoryItem() const { return m_replacesCurrentHistoryItem; }
106 void setReplacesCurrentHistoryItem(bool replacesCurrentHistoryItem) { m_replacesCurrentHistoryItem = replacesCurrentHistoryItem; }
108 bool scheduleArchiveLoad(Resource*, const ResourceRequest&);
110 bool shouldContinueForNavigationPolicy(const ResourceRequest&, ContentSecurityPolicyCheck shouldCheckMainWorldContentSecurityPolicy, bool isTransitionNavigation = false);
111 const NavigationAction& triggeringAction() const { return m_triggeringAction; }
112 void setTriggeringAction(const NavigationAction& action) { m_triggeringAction = action; }
114 void setDefersLoading(bool);
116 void startLoadingMainResource();
117 void cancelMainResourceLoad(const ResourceError&);
119 void attachThreadedDataReceiver(PassOwnPtr<blink::WebThreadedDataReceiver>);
120 DocumentLoadTiming* timing() { return &m_documentLoadTiming; }
122 ApplicationCacheHost* applicationCacheHost() const { return m_applicationCacheHost.get(); }
124 bool isRedirect() const { return m_redirectChain.size() > 1; }
125 void clearRedirectChain();
126 void appendRedirect(const KURL&);
128 PassRefPtr<ContentSecurityPolicy> releaseContentSecurityPolicy() { return m_contentSecurityPolicy.release(); }
131 DocumentLoader(LocalFrame*, const ResourceRequest&, const SubstituteData&);
133 Vector<KURL> m_redirectChain;
136 static PassRefPtrWillBeRawPtr<DocumentWriter> createWriterFor(const Document* ownerDocument, const DocumentInit&, const AtomicString& mimeType, const AtomicString& encoding, bool dispatch);
138 void ensureWriter(const AtomicString& mimeType, const KURL& overridingURL = KURL());
139 void endWriting(DocumentWriter*);
141 Document* document() const;
142 FrameLoader* frameLoader() const;
144 void commitIfReady();
145 void commitData(const char* bytes, size_t length);
146 void setMainDocumentError(const ResourceError&);
147 void clearMainResourceLoader();
148 ResourceLoader* mainResourceLoader() const;
149 void clearMainResourceHandle();
151 bool maybeCreateArchive();
153 void prepareSubframeArchiveLoadIfNeeded();
154 void addAllArchiveResources(MHTMLArchive*);
156 void willSendRequest(ResourceRequest&, const ResourceResponse&);
157 void finishedLoading(double finishTime);
158 void mainReceivedError(const ResourceError&);
159 void cancelLoadAfterXFrameOptionsOrCSPDenied(const ResourceResponse&);
160 virtual void redirectReceived(Resource*, ResourceRequest&, const ResourceResponse&) override final;
161 virtual void updateRequest(Resource*, const ResourceRequest&) override final;
162 virtual void responseReceived(Resource*, const ResourceResponse&, PassOwnPtr<WebDataConsumerHandle>) override final;
163 virtual void dataReceived(Resource*, const char* data, unsigned length) override final;
164 virtual void notifyFinished(Resource*) override final;
166 bool maybeLoadEmpty();
168 bool isRedirectAfterPost(const ResourceRequest&, const ResourceResponse&);
170 bool shouldContinueForResponse() const;
173 RefPtrWillBePersistent<ResourceFetcher> m_fetcher;
175 ResourcePtr<RawResource> m_mainResource;
177 RefPtrWillBePersistent<DocumentWriter> m_writer;
179 // A reference to actual request used to create the data source.
180 // The only part of this request that should change is the url, and
181 // that only in the case of a same-document navigation.
182 ResourceRequest m_originalRequest;
184 SubstituteData m_substituteData;
186 // The 'working' request. It may be mutated
187 // several times from the original request to include additional
188 // headers, cookie information, canonicalization and redirects.
189 ResourceRequest m_request;
191 ResourceResponse m_response;
193 ResourceError m_mainDocumentError;
196 bool m_isClientRedirect;
197 bool m_replacesCurrentHistoryItem;
199 // The action that triggered loading - we keep this around for the
200 // benefit of the various policy handlers.
201 NavigationAction m_triggeringAction;
203 OwnPtrWillBePersistent<ArchiveResourceCollection> m_archiveResourceCollection;
204 RefPtrWillBePersistent<MHTMLArchive> m_archive;
206 bool m_loadingMainResource;
207 DocumentLoadTiming m_documentLoadTiming;
209 double m_timeOfLastDataReceived;
211 friend class ApplicationCacheHost; // for substitute resource delivery
212 OwnPtrWillBePersistent<ApplicationCacheHost> m_applicationCacheHost;
214 RefPtr<ContentSecurityPolicy> m_contentSecurityPolicy;
218 #endif // DocumentLoader_h