Add m-esr52 at 52.6.0

1 files changed, 136 insertions, 0 deletions

diff --git a/netwerk/protocol/about/nsAboutCache.h b/netwerk/protocol/about/nsAboutCache.h
new file mode 100644
index 0000000000..c2d1af8505
--- /dev/null
+++ b/netwerk/protocol/about/nsAboutCache.h
@@ -0,0 +1,136 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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 "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(nsISupports * *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); } \
+
+class nsAboutCache final : public nsIAboutModule
+{
+public:
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSIABOUTMODULE
+
+    nsAboutCache() {}
+
+    static MOZ_MUST_USE nsresult
+    Create(nsISupports *aOuter, REFNSIID aIID, void **aResult);
+
+    static MOZ_MUST_USE nsresult
+    GetStorage(nsACString const & storageName, nsILoadContextInfo* loadInfo,
+               nsICacheStorage **storage);
+
+protected:
+    virtual ~nsAboutCache() {}
+
+    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, nsISupports *aContext) override;
+        NS_IMETHOD AsyncOpen2(nsIStreamListener *aListener) override;
+        NS_IMETHOD Open(nsIInputStream * *_retval) override;
+        NS_IMETHOD Open2(nsIInputStream * *_retval) override;
+
+    private:
+        virtual ~Channel() {}
+
+    public:
+        MOZ_MUST_USE nsresult Init(nsIURI* aURI, nsILoadInfo* aLoadInfo);
+        MOZ_MUST_USE 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.
+        MOZ_MUST_USE 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.
+        MOZ_MUST_USE 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.
+        MOZ_MUST_USE nsresult FlushBuffer();
+
+        // Whether we are showing overview status of all available
+        // storages.
+        bool mOverview;
+
+        // Flag initially false, that indicates the entries header has
+        // been added to the output HTML.
+        bool mEntriesHeaderAdded;
+
+        // Cancelation flag
+        bool mCancel;
+
+        // The context we are working with.
+        nsCOMPtr<nsILoadContextInfo> mLoadInfo;
+        nsCString mContextString;
+
+        // 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__