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-rw-r--r--netwerk/protocol/about/nsAboutCache.h199
1 files changed, 199 insertions, 0 deletions
diff --git a/netwerk/protocol/about/nsAboutCache.h b/netwerk/protocol/about/nsAboutCache.h
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+++ b/netwerk/protocol/about/nsAboutCache.h
@@ -0,0 +1,199 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsAboutCache_h__
+#define nsAboutCache_h__
+
+#include "nsIAboutModule.h"
+#include "nsICacheStorageVisitor.h"
+#include "nsICacheStorage.h"
+
+#include "nsString.h"
+#include "nsIChannel.h"
+#include "nsIOutputStream.h"
+#include "nsILoadContextInfo.h"
+
+#include "nsCOMPtr.h"
+#include "nsTArray.h"
+
+#define NS_FORWARD_SAFE_NSICHANNEL_SUBSET(_to) \
+ NS_IMETHOD GetOriginalURI(nsIURI** aOriginalURI) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER \
+ : (_to)->GetOriginalURI(aOriginalURI); \
+ } \
+ NS_IMETHOD SetOriginalURI(nsIURI* aOriginalURI) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER \
+ : (_to)->SetOriginalURI(aOriginalURI); \
+ } \
+ NS_IMETHOD GetURI(nsIURI** aURI) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER : (_to)->GetURI(aURI); \
+ } \
+ NS_IMETHOD GetOwner(nsISupports** aOwner) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER : (_to)->GetOwner(aOwner); \
+ } \
+ NS_IMETHOD SetOwner(nsISupports* aOwner) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER : (_to)->SetOwner(aOwner); \
+ } \
+ NS_IMETHOD GetNotificationCallbacks( \
+ nsIInterfaceRequestor** aNotificationCallbacks) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER \
+ : (_to)->GetNotificationCallbacks(aNotificationCallbacks); \
+ } \
+ NS_IMETHOD SetNotificationCallbacks( \
+ nsIInterfaceRequestor* aNotificationCallbacks) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER \
+ : (_to)->SetNotificationCallbacks(aNotificationCallbacks); \
+ } \
+ NS_IMETHOD GetSecurityInfo(nsITransportSecurityInfo** aSecurityInfo) \
+ override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER \
+ : (_to)->GetSecurityInfo(aSecurityInfo); \
+ } \
+ NS_IMETHOD GetContentType(nsACString& aContentType) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER \
+ : (_to)->GetContentType(aContentType); \
+ } \
+ NS_IMETHOD SetContentType(const nsACString& aContentType) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER \
+ : (_to)->SetContentType(aContentType); \
+ } \
+ NS_IMETHOD GetContentCharset(nsACString& aContentCharset) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER \
+ : (_to)->GetContentCharset(aContentCharset); \
+ } \
+ NS_IMETHOD SetContentCharset(const nsACString& aContentCharset) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER \
+ : (_to)->SetContentCharset(aContentCharset); \
+ } \
+ NS_IMETHOD GetContentLength(int64_t* aContentLength) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER \
+ : (_to)->GetContentLength(aContentLength); \
+ } \
+ NS_IMETHOD SetContentLength(int64_t aContentLength) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER \
+ : (_to)->SetContentLength(aContentLength); \
+ } \
+ NS_IMETHOD GetContentDisposition(uint32_t* aContentDisposition) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER \
+ : (_to)->GetContentDisposition(aContentDisposition); \
+ } \
+ NS_IMETHOD SetContentDisposition(uint32_t aContentDisposition) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER \
+ : (_to)->SetContentDisposition(aContentDisposition); \
+ } \
+ NS_IMETHOD GetContentDispositionFilename( \
+ nsAString& aContentDispositionFilename) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER \
+ : (_to)->GetContentDispositionFilename( \
+ aContentDispositionFilename); \
+ } \
+ NS_IMETHOD SetContentDispositionFilename( \
+ const nsAString& aContentDispositionFilename) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER \
+ : (_to)->SetContentDispositionFilename( \
+ aContentDispositionFilename); \
+ } \
+ NS_IMETHOD GetContentDispositionHeader( \
+ nsACString& aContentDispositionHeader) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER \
+ : (_to)->GetContentDispositionHeader( \
+ aContentDispositionHeader); \
+ } \
+ NS_IMETHOD GetLoadInfo(nsILoadInfo** aLoadInfo) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER : (_to)->GetLoadInfo(aLoadInfo); \
+ } \
+ NS_IMETHOD SetLoadInfo(nsILoadInfo* aLoadInfo) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER : (_to)->SetLoadInfo(aLoadInfo); \
+ } \
+ NS_IMETHOD GetIsDocument(bool* aIsDocument) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER : (_to)->GetIsDocument(aIsDocument); \
+ } \
+ NS_IMETHOD GetCanceled(bool* aCanceled) override { \
+ return !(_to) ? NS_ERROR_NULL_POINTER : (_to)->GetCanceled(aCanceled); \
+ };
+
+class nsAboutCache final : public nsIAboutModule {
+ public:
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSIABOUTMODULE
+
+ nsAboutCache() = default;
+
+ [[nodiscard]] static nsresult Create(REFNSIID aIID, void** aResult);
+
+ [[nodiscard]] static nsresult GetStorage(nsACString const& storageName,
+ nsILoadContextInfo* loadInfo,
+ nsICacheStorage** storage);
+
+ protected:
+ virtual ~nsAboutCache() = default;
+
+ class Channel final : public nsIChannel, public nsICacheStorageVisitor {
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSICACHESTORAGEVISITOR
+ NS_FORWARD_SAFE_NSIREQUEST(mChannel)
+ NS_FORWARD_SAFE_NSICHANNEL_SUBSET(mChannel)
+ NS_IMETHOD AsyncOpen(nsIStreamListener* aListener) override;
+ NS_IMETHOD Open(nsIInputStream** _retval) override;
+
+ private:
+ virtual ~Channel() = default;
+
+ public:
+ [[nodiscard]] nsresult Init(nsIURI* aURI, nsILoadInfo* aLoadInfo);
+ [[nodiscard]] nsresult ParseURI(nsIURI* uri, nsACString& storage);
+
+ // Finds a next storage we wish to visit (we use this method
+ // even there is a specified storage name, which is the only
+ // one in the list then.) Posts FireVisitStorage() when found.
+ [[nodiscard]] nsresult VisitNextStorage();
+ // Helper method that calls VisitStorage() for the current storage.
+ // When it fails, OnCacheEntryVisitCompleted is simulated to close
+ // the output stream and thus the about:cache channel.
+ void FireVisitStorage();
+ // Kiks the visit cycle for the given storage, names can be:
+ // "disk", "memory", "appcache"
+ // Note: any newly added storage type has to be manually handled here.
+ [[nodiscard]] nsresult VisitStorage(nsACString const& storageName);
+
+ // Writes content of mBuffer to mStream and truncates
+ // the buffer. It may fail when the input stream is closed by canceling
+ // the input stream channel. It can be used to stop the cache iteration
+ // process.
+ [[nodiscard]] nsresult FlushBuffer();
+
+ // Whether we are showing overview status of all available
+ // storages.
+ bool mOverview = false;
+
+ // Flag initially false, that indicates the entries header has
+ // been added to the output HTML.
+ bool mEntriesHeaderAdded = false;
+
+ // Cancelation flag
+ bool mCancel = false;
+
+ // The list of all storage names we want to visit
+ nsTArray<nsCString> mStorageList;
+ nsCString mStorageName;
+ nsCOMPtr<nsICacheStorage> mStorage;
+
+ // Output data buffering and streaming output
+ nsCString mBuffer;
+ nsCOMPtr<nsIOutputStream> mStream;
+
+ // The input stream channel, the one that actually does the job
+ nsCOMPtr<nsIChannel> mChannel;
+ };
+};
+
+#define NS_ABOUT_CACHE_MODULE_CID \
+ { /* 9158c470-86e4-11d4-9be2-00e09872a416 */ \
+ 0x9158c470, 0x86e4, 0x11d4, { \
+ 0x9b, 0xe2, 0x00, 0xe0, 0x98, 0x72, 0xa4, 0x16 \
+ } \
+ }
+
+#endif // nsAboutCache_h__