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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/loader/DocumentLoadTiming.h"
37 #include "core/loader/DocumentWriter.h"
38 #include "core/loader/NavigationAction.h"
39 #include "core/loader/SubstituteData.h"
40 #include "platform/network/ResourceError.h"
41 #include "platform/network/ResourceRequest.h"
42 #include "platform/network/ResourceResponse.h"
43 #include "wtf/HashSet.h"
44 #include "wtf/RefPtr.h"
47 class WebThreadedDataReceiver;
55 class ApplicationCacheHost;
56 class ArchiveResource;
57 class ArchiveResourceCollection;
58 class ResourceFetcher;
68 class DocumentLoader : public RefCounted<DocumentLoader>, private RawResourceClient {
69 WTF_MAKE_FAST_ALLOCATED;
71 static PassRefPtr<DocumentLoader> create(LocalFrame* frame, const ResourceRequest& request, const SubstituteData& data)
73 return adoptRef(new DocumentLoader(frame, request, data));
75 virtual ~DocumentLoader();
77 LocalFrame* frame() const { return m_frame; }
79 void detachFromFrame();
81 unsigned long mainResourceIdentifier() const;
83 void replaceDocument(const String& source, Document*);
85 const AtomicString& mimeType() const;
87 void setUserChosenEncoding(const String& charset);
89 const ResourceRequest& originalRequest() const;
91 const ResourceRequest& request() const;
93 ResourceFetcher* fetcher() const { return m_fetcher.get(); }
95 const SubstituteData& substituteData() const { return m_substituteData; }
97 const KURL& url() const;
98 const KURL& unreachableURL() const;
99 const KURL& urlForHistory() const;
101 const AtomicString& responseMIMEType() const;
103 void updateForSameDocumentNavigation(const KURL&, SameDocumentNavigationSource);
105 bool isCommitted() const { return m_committed; }
106 bool isLoading() const;
107 bool isLoadingMainResource() const { return m_loadingMainResource; }
108 const ResourceResponse& response() const { return m_response; }
109 const ResourceError& mainDocumentError() const { return m_mainDocumentError; }
110 bool isClientRedirect() const { return m_isClientRedirect; }
111 void setIsClientRedirect(bool isClientRedirect) { m_isClientRedirect = isClientRedirect; }
112 bool replacesCurrentHistoryItem() const { return m_replacesCurrentHistoryItem; }
113 void setReplacesCurrentHistoryItem(bool replacesCurrentHistoryItem) { m_replacesCurrentHistoryItem = replacesCurrentHistoryItem; }
114 const AtomicString& overrideEncoding() const { return m_overrideEncoding; }
116 bool scheduleArchiveLoad(Resource*, const ResourceRequest&);
118 bool shouldContinueForNavigationPolicy(const ResourceRequest&, ContentSecurityPolicyCheck shouldCheckMainWorldContentSecurityPolicy, bool isTransitionNavigation = false);
119 const NavigationAction& triggeringAction() const { return m_triggeringAction; }
120 void setTriggeringAction(const NavigationAction& action) { m_triggeringAction = action; }
122 void setOverrideEncoding(const AtomicString& encoding) { m_overrideEncoding = encoding; }
124 void setDefersLoading(bool);
126 void startLoadingMainResource();
127 void cancelMainResourceLoad(const ResourceError&);
129 void attachThreadedDataReceiver(PassOwnPtr<blink::WebThreadedDataReceiver>);
130 DocumentLoadTiming* timing() { return &m_documentLoadTiming; }
132 ApplicationCacheHost* applicationCacheHost() const { return m_applicationCacheHost.get(); }
134 bool isRedirect() const { return m_redirectChain.size() > 1; }
135 void clearRedirectChain();
136 void appendRedirect(const KURL&);
139 DocumentLoader(LocalFrame*, const ResourceRequest&, const SubstituteData&);
141 Vector<KURL> m_redirectChain;
144 static PassRefPtrWillBeRawPtr<DocumentWriter> createWriterFor(LocalFrame*, const Document* ownerDocument, const KURL&, const AtomicString& mimeType, const AtomicString& encoding, bool dispatch);
146 void ensureWriter(const AtomicString& mimeType, const KURL& overridingURL = KURL());
147 void endWriting(DocumentWriter*);
149 Document* document() const;
150 FrameLoader* frameLoader() const;
152 void commitIfReady();
153 void commitData(const char* bytes, size_t length);
154 void setMainDocumentError(const ResourceError&);
155 void clearMainResourceLoader();
156 ResourceLoader* mainResourceLoader() const;
157 void clearMainResourceHandle();
159 bool maybeCreateArchive();
161 void prepareSubframeArchiveLoadIfNeeded();
162 void addAllArchiveResources(MHTMLArchive*);
164 void willSendRequest(ResourceRequest&, const ResourceResponse&);
165 void finishedLoading(double finishTime);
166 void mainReceivedError(const ResourceError&);
167 virtual void redirectReceived(Resource*, ResourceRequest&, const ResourceResponse&) OVERRIDE FINAL;
168 virtual void updateRequest(Resource*, const ResourceRequest&) OVERRIDE FINAL;
169 virtual void responseReceived(Resource*, const ResourceResponse&) OVERRIDE FINAL;
170 virtual void dataReceived(Resource*, const char* data, int length) OVERRIDE FINAL;
171 virtual void notifyFinished(Resource*) OVERRIDE FINAL;
173 bool maybeLoadEmpty();
175 bool isRedirectAfterPost(const ResourceRequest&, const ResourceResponse&);
177 bool shouldContinueForResponse() const;
180 RefPtrWillBePersistent<ResourceFetcher> m_fetcher;
182 ResourcePtr<RawResource> m_mainResource;
184 RefPtrWillBePersistent<DocumentWriter> m_writer;
186 // A reference to actual request used to create the data source.
187 // The only part of this request that should change is the url, and
188 // that only in the case of a same-document navigation.
189 ResourceRequest m_originalRequest;
191 SubstituteData m_substituteData;
193 // The 'working' request. It may be mutated
194 // several times from the original request to include additional
195 // headers, cookie information, canonicalization and redirects.
196 ResourceRequest m_request;
198 ResourceResponse m_response;
200 ResourceError m_mainDocumentError;
203 bool m_isClientRedirect;
204 bool m_replacesCurrentHistoryItem;
206 AtomicString m_overrideEncoding;
208 // The action that triggered loading - we keep this around for the
209 // benefit of the various policy handlers.
210 NavigationAction m_triggeringAction;
212 OwnPtrWillBePersistent<ArchiveResourceCollection> m_archiveResourceCollection;
213 RefPtrWillBePersistent<MHTMLArchive> m_archive;
215 bool m_loadingMainResource;
216 DocumentLoadTiming m_documentLoadTiming;
218 double m_timeOfLastDataReceived;
220 friend class ApplicationCacheHost; // for substitute resource delivery
221 OwnPtr<ApplicationCacheHost> m_applicationCacheHost;
225 #endif // DocumentLoader_h