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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:47:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:47:29 +0000
commit0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch)
treea31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /netwerk/protocol/about/nsAboutCache.cpp
parentInitial commit. (diff)
downloadfirefox-esr-upstream/115.8.0esr.tar.xz
firefox-esr-upstream/115.8.0esr.zip
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'netwerk/protocol/about/nsAboutCache.cpp')
-rw-r--r--netwerk/protocol/about/nsAboutCache.cpp533
1 files changed, 533 insertions, 0 deletions
diff --git a/netwerk/protocol/about/nsAboutCache.cpp b/netwerk/protocol/about/nsAboutCache.cpp
new file mode 100644
index 0000000000..1873277a7a
--- /dev/null
+++ b/netwerk/protocol/about/nsAboutCache.cpp
@@ -0,0 +1,533 @@
+/* -*- 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/. */
+
+#include "nsAboutCache.h"
+#include "nsIInputStream.h"
+#include "nsIURI.h"
+#include "nsCOMPtr.h"
+#include "nsNetUtil.h"
+#include "nsIPipe.h"
+#include "nsContentUtils.h"
+#include "nsEscape.h"
+#include "nsAboutProtocolUtils.h"
+#include "nsPrintfCString.h"
+
+#include "nsICacheStorageService.h"
+#include "nsICacheStorage.h"
+#include "CacheFileUtils.h"
+#include "CacheObserver.h"
+
+#include "nsThreadUtils.h"
+
+using namespace mozilla::net;
+
+NS_IMPL_ISUPPORTS(nsAboutCache, nsIAboutModule)
+NS_IMPL_ISUPPORTS(nsAboutCache::Channel, nsIChannel, nsIRequest,
+ nsICacheStorageVisitor)
+
+NS_IMETHODIMP
+nsAboutCache::NewChannel(nsIURI* aURI, nsILoadInfo* aLoadInfo,
+ nsIChannel** result) {
+ nsresult rv;
+
+ NS_ENSURE_ARG_POINTER(aURI);
+
+ RefPtr<Channel> channel = new Channel();
+ rv = channel->Init(aURI, aLoadInfo);
+ if (NS_FAILED(rv)) return rv;
+
+ channel.forget(result);
+
+ return NS_OK;
+}
+
+nsresult nsAboutCache::Channel::Init(nsIURI* aURI, nsILoadInfo* aLoadInfo) {
+ nsresult rv;
+
+ mCancel = false;
+
+ nsCOMPtr<nsIInputStream> inputStream;
+ NS_NewPipe(getter_AddRefs(inputStream), getter_AddRefs(mStream), 16384,
+ (uint32_t)-1,
+ true, // non-blocking input
+ false // blocking output
+ );
+
+ nsAutoCString storageName;
+ rv = ParseURI(aURI, storageName);
+ if (NS_FAILED(rv)) return rv;
+
+ mOverview = storageName.IsEmpty();
+ if (mOverview) {
+ // ...and visit all we can
+ mStorageList.AppendElement("memory"_ns);
+ mStorageList.AppendElement("disk"_ns);
+ } else {
+ // ...and visit just the specified storage, entries will output too
+ mStorageList.AppendElement(storageName);
+ }
+
+ // The entries header is added on encounter of the first entry
+ mEntriesHeaderAdded = false;
+
+ rv = NS_NewInputStreamChannelInternal(getter_AddRefs(mChannel), aURI,
+ inputStream.forget(), "text/html"_ns,
+ "utf-8"_ns, aLoadInfo);
+ if (NS_FAILED(rv)) return rv;
+
+ mBuffer.AssignLiteral(
+ "<!DOCTYPE html>\n"
+ "<html>\n"
+ "<head>\n"
+ " <title>Network Cache Storage Information</title>\n"
+ " <meta charset=\"utf-8\">\n"
+ " <meta name=\"color-scheme\" content=\"light dark\">\n"
+ " <meta http-equiv=\"Content-Security-Policy\" content=\"default-src "
+ "chrome:; object-src 'none'\"/>\n"
+ " <link rel=\"stylesheet\" "
+ "href=\"chrome://global/skin/in-content/info-pages.css\"/>\n"
+ " <link rel=\"stylesheet\" "
+ "href=\"chrome://global/skin/aboutCache.css\"/>\n"
+ "</head>\n"
+ "<body class=\"aboutPageWideContainer\">\n"
+ "<h1>Information about the Network Cache Storage Service</h1>\n");
+
+ if (!mOverview) {
+ mBuffer.AppendLiteral(
+ "<a href=\"about:cache?storage=\">Back to overview</a>");
+ }
+
+ rv = FlushBuffer();
+ if (NS_FAILED(rv)) {
+ NS_WARNING("Failed to flush buffer");
+ }
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP nsAboutCache::Channel::AsyncOpen(nsIStreamListener* aListener) {
+ nsresult rv;
+
+ if (!mChannel) {
+ return NS_ERROR_UNEXPECTED;
+ }
+
+ // Kick the walk loop.
+ rv = VisitNextStorage();
+ if (NS_FAILED(rv)) return rv;
+
+ rv = mChannel->AsyncOpen(aListener);
+ if (NS_FAILED(rv)) return rv;
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP nsAboutCache::Channel::Open(nsIInputStream** _retval) {
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+nsresult nsAboutCache::Channel::ParseURI(nsIURI* uri, nsACString& storage) {
+ //
+ // about:cache[?storage=<storage-name>[&context=<context-key>]]
+ //
+ nsresult rv;
+
+ nsAutoCString path;
+ rv = uri->GetPathQueryRef(path);
+ if (NS_FAILED(rv)) return rv;
+
+ storage.Truncate();
+
+ nsACString::const_iterator start, valueStart, end;
+ path.BeginReading(start);
+ path.EndReading(end);
+
+ valueStart = end;
+ if (!FindInReadable("?storage="_ns, start, valueStart)) {
+ return NS_OK;
+ }
+
+ storage.Assign(Substring(valueStart, end));
+
+ return NS_OK;
+}
+
+nsresult nsAboutCache::Channel::VisitNextStorage() {
+ if (!mStorageList.Length()) return NS_ERROR_NOT_AVAILABLE;
+
+ mStorageName = mStorageList[0];
+ mStorageList.RemoveElementAt(0);
+
+ // Must re-dispatch since we cannot start another visit cycle
+ // from visitor callback. The cache v1 service doesn't like it.
+ // TODO - mayhemer, bug 913828, remove this dispatch and call
+ // directly.
+ return NS_DispatchToMainThread(mozilla::NewRunnableMethod(
+ "nsAboutCache::Channel::FireVisitStorage", this,
+ &nsAboutCache::Channel::FireVisitStorage));
+}
+
+void nsAboutCache::Channel::FireVisitStorage() {
+ nsresult rv;
+
+ rv = VisitStorage(mStorageName);
+ if (NS_FAILED(rv)) {
+ nsAutoCString escaped;
+ nsAppendEscapedHTML(mStorageName, escaped);
+ mBuffer.Append(nsPrintfCString(
+ "<p>Unrecognized storage name '%s' in about:cache URL</p>",
+ escaped.get()));
+
+ rv = FlushBuffer();
+ if (NS_FAILED(rv)) {
+ NS_WARNING("Failed to flush buffer");
+ }
+
+ // Simulate finish of a visit cycle, this tries the next storage
+ // or closes the output stream (i.e. the UI loader will stop spinning)
+ OnCacheEntryVisitCompleted();
+ }
+}
+
+nsresult nsAboutCache::Channel::VisitStorage(nsACString const& storageName) {
+ nsresult rv;
+
+ rv = GetStorage(storageName, nullptr, getter_AddRefs(mStorage));
+ if (NS_FAILED(rv)) return rv;
+
+ rv = mStorage->AsyncVisitStorage(this, !mOverview);
+ if (NS_FAILED(rv)) return rv;
+
+ return NS_OK;
+}
+
+// static
+nsresult nsAboutCache::GetStorage(nsACString const& storageName,
+ nsILoadContextInfo* loadInfo,
+ nsICacheStorage** storage) {
+ nsresult rv;
+
+ nsCOMPtr<nsICacheStorageService> cacheService =
+ do_GetService("@mozilla.org/netwerk/cache-storage-service;1", &rv);
+ if (NS_FAILED(rv)) return rv;
+
+ nsCOMPtr<nsICacheStorage> cacheStorage;
+ if (storageName == "disk") {
+ rv = cacheService->DiskCacheStorage(loadInfo, getter_AddRefs(cacheStorage));
+ } else if (storageName == "memory") {
+ rv = cacheService->MemoryCacheStorage(loadInfo,
+ getter_AddRefs(cacheStorage));
+ } else {
+ rv = NS_ERROR_UNEXPECTED;
+ }
+ if (NS_FAILED(rv)) return rv;
+
+ cacheStorage.forget(storage);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsAboutCache::Channel::OnCacheStorageInfo(uint32_t aEntryCount,
+ uint64_t aConsumption,
+ uint64_t aCapacity,
+ nsIFile* aDirectory) {
+ // We need mStream for this
+ if (!mStream) {
+ return NS_ERROR_FAILURE;
+ }
+
+ mBuffer.AssignLiteral("<h2>");
+ nsAppendEscapedHTML(mStorageName, mBuffer);
+ mBuffer.AppendLiteral(
+ "</h2>\n"
+ "<table id=\"");
+ mBuffer.AppendLiteral("\">\n");
+
+ // Write out cache info
+ // Number of entries
+ mBuffer.AppendLiteral(
+ " <tr>\n"
+ " <th>Number of entries:</th>\n"
+ " <td>");
+ mBuffer.AppendInt(aEntryCount);
+ mBuffer.AppendLiteral(
+ "</td>\n"
+ " </tr>\n");
+
+ // Maximum storage size
+ mBuffer.AppendLiteral(
+ " <tr>\n"
+ " <th>Maximum storage size:</th>\n"
+ " <td>");
+ mBuffer.AppendInt(aCapacity / 1024);
+ mBuffer.AppendLiteral(
+ " KiB</td>\n"
+ " </tr>\n");
+
+ // Storage in use
+ mBuffer.AppendLiteral(
+ " <tr>\n"
+ " <th>Storage in use:</th>\n"
+ " <td>");
+ mBuffer.AppendInt(aConsumption / 1024);
+ mBuffer.AppendLiteral(
+ " KiB</td>\n"
+ " </tr>\n");
+
+ // Storage disk location
+ mBuffer.AppendLiteral(
+ " <tr>\n"
+ " <th>Storage disk location:</th>\n"
+ " <td>");
+ if (aDirectory) {
+ nsAutoString path;
+ aDirectory->GetPath(path);
+ mBuffer.Append(NS_ConvertUTF16toUTF8(path));
+ } else {
+ mBuffer.AppendLiteral("none, only stored in memory");
+ }
+ mBuffer.AppendLiteral(
+ " </td>\n"
+ " </tr>\n");
+
+ if (mOverview) { // The about:cache case
+ if (aEntryCount != 0) { // Add the "List Cache Entries" link
+ mBuffer.AppendLiteral(
+ " <tr>\n"
+ " <td colspan=\"2\"><a href=\"about:cache?storage=");
+ nsAppendEscapedHTML(mStorageName, mBuffer);
+ mBuffer.AppendLiteral(
+ "\">List Cache Entries</a></td>\n"
+ " </tr>\n");
+ }
+ }
+
+ mBuffer.AppendLiteral("</table>\n");
+
+ // The entries header is added on encounter of the first entry
+ mEntriesHeaderAdded = false;
+
+ nsresult rv = FlushBuffer();
+ if (NS_FAILED(rv)) {
+ NS_WARNING("Failed to flush buffer");
+ }
+
+ if (mOverview) {
+ // OnCacheEntryVisitCompleted() is not called when we do not iterate
+ // cache entries. Since this moves forward to the next storage in
+ // the list we want to visit, artificially call it here.
+ OnCacheEntryVisitCompleted();
+ }
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsAboutCache::Channel::OnCacheEntryInfo(
+ nsIURI* aURI, const nsACString& aIdEnhance, int64_t aDataSize,
+ int64_t aAltDataSize, uint32_t aFetchCount, uint32_t aLastModified,
+ uint32_t aExpirationTime, bool aPinned, nsILoadContextInfo* aInfo) {
+ // We need mStream for this
+ if (!mStream || mCancel) {
+ // Returning a failure from this callback stops the iteration
+ return NS_ERROR_FAILURE;
+ }
+
+ if (!mEntriesHeaderAdded) {
+ mBuffer.AppendLiteral(
+ "<hr/>\n"
+ "<table id=\"entries\">\n"
+ " <colgroup>\n"
+ " <col id=\"col-key\">\n"
+ " <col id=\"col-dataSize\">\n"
+ " <col id=\"col-altDataSize\">\n"
+ " <col id=\"col-fetchCount\">\n"
+ " <col id=\"col-lastModified\">\n"
+ " <col id=\"col-expires\">\n"
+ " <col id=\"col-pinned\">\n"
+ " </colgroup>\n"
+ " <thead>\n"
+ " <tr>\n"
+ " <th>Key</th>\n"
+ " <th>Data size</th>\n"
+ " <th>Alternative Data size</th>\n"
+ " <th>Fetch count</th>\n"
+ " <th>Last Modifed</th>\n"
+ " <th>Expires</th>\n"
+ " <th>Pinning</th>\n"
+ " </tr>\n"
+ " </thead>\n");
+ mEntriesHeaderAdded = true;
+ }
+
+ // Generate a about:cache-entry URL for this entry...
+
+ nsAutoCString url;
+ url.AssignLiteral("about:cache-entry?storage=");
+ nsAppendEscapedHTML(mStorageName, url);
+
+ nsAutoCString context;
+ CacheFileUtils::AppendKeyPrefix(aInfo, context);
+ url.AppendLiteral("&amp;context=");
+ nsAppendEscapedHTML(context, url);
+
+ url.AppendLiteral("&amp;eid=");
+ nsAppendEscapedHTML(aIdEnhance, url);
+
+ nsAutoCString cacheUriSpec;
+ aURI->GetAsciiSpec(cacheUriSpec);
+ nsAutoCString escapedCacheURI;
+ nsAppendEscapedHTML(cacheUriSpec, escapedCacheURI);
+ url.AppendLiteral("&amp;uri=");
+ url += escapedCacheURI;
+
+ // Entry start...
+ mBuffer.AppendLiteral(" <tr>\n");
+
+ // URI
+ mBuffer.AppendLiteral(" <td><a href=\"");
+ mBuffer.Append(url);
+ mBuffer.AppendLiteral("\">");
+ if (!aIdEnhance.IsEmpty()) {
+ nsAppendEscapedHTML(aIdEnhance, mBuffer);
+ mBuffer.Append(':');
+ }
+ mBuffer.Append(escapedCacheURI);
+ mBuffer.AppendLiteral("</a>");
+
+ if (!context.IsEmpty()) {
+ mBuffer.AppendLiteral("<br><span title=\"Context separation key\">");
+ nsAutoCString escapedContext;
+ nsAppendEscapedHTML(context, escapedContext);
+ mBuffer.Append(escapedContext);
+ mBuffer.AppendLiteral("</span>");
+ }
+
+ mBuffer.AppendLiteral("</td>\n");
+
+ // Content length
+ mBuffer.AppendLiteral(" <td>");
+ mBuffer.AppendInt(aDataSize);
+ mBuffer.AppendLiteral(" bytes</td>\n");
+
+ // Length of alternative content
+ mBuffer.AppendLiteral(" <td>");
+ mBuffer.AppendInt(aAltDataSize);
+ mBuffer.AppendLiteral(" bytes</td>\n");
+
+ // Number of accesses
+ mBuffer.AppendLiteral(" <td>");
+ mBuffer.AppendInt(aFetchCount);
+ mBuffer.AppendLiteral("</td>\n");
+
+ // vars for reporting time
+ char buf[255];
+
+ // Last modified time
+ mBuffer.AppendLiteral(" <td>");
+ if (aLastModified) {
+ PrintTimeString(buf, sizeof(buf), aLastModified);
+ mBuffer.Append(buf);
+ } else {
+ mBuffer.AppendLiteral("No last modified time");
+ }
+ mBuffer.AppendLiteral("</td>\n");
+
+ // Expires time
+ mBuffer.AppendLiteral(" <td>");
+
+ // Bug - 633747.
+ // When expiration time is 0, we show 1970-01-01 01:00:00 which is confusing.
+ // So we check if time is 0, then we show a message, "Expired Immediately"
+ if (aExpirationTime == 0) {
+ mBuffer.AppendLiteral("Expired Immediately");
+ } else if (aExpirationTime < 0xFFFFFFFF) {
+ PrintTimeString(buf, sizeof(buf), aExpirationTime);
+ mBuffer.Append(buf);
+ } else {
+ mBuffer.AppendLiteral("No expiration time");
+ }
+ mBuffer.AppendLiteral("</td>\n");
+
+ // Pinning
+ mBuffer.AppendLiteral(" <td>");
+ if (aPinned) {
+ mBuffer.AppendLiteral("Pinned");
+ } else {
+ mBuffer.AppendLiteral("&nbsp;");
+ }
+ mBuffer.AppendLiteral("</td>\n");
+
+ // Entry is done...
+ mBuffer.AppendLiteral(" </tr>\n");
+
+ return FlushBuffer();
+}
+
+NS_IMETHODIMP
+nsAboutCache::Channel::OnCacheEntryVisitCompleted() {
+ if (!mStream) {
+ return NS_ERROR_FAILURE;
+ }
+
+ if (mEntriesHeaderAdded) {
+ mBuffer.AppendLiteral("</table>\n");
+ }
+
+ // Kick another storage visiting (from a storage that allows us.)
+ while (mStorageList.Length()) {
+ nsresult rv = VisitNextStorage();
+ if (NS_SUCCEEDED(rv)) {
+ // Expecting new round of OnCache* calls.
+ return NS_OK;
+ }
+ }
+
+ // We are done!
+ mBuffer.AppendLiteral(
+ "</body>\n"
+ "</html>\n");
+ nsresult rv = FlushBuffer();
+ if (NS_FAILED(rv)) {
+ NS_WARNING("Failed to flush buffer");
+ }
+ mStream->Close();
+
+ return NS_OK;
+}
+
+nsresult nsAboutCache::Channel::FlushBuffer() {
+ nsresult rv;
+
+ uint32_t bytesWritten;
+ rv = mStream->Write(mBuffer.get(), mBuffer.Length(), &bytesWritten);
+ mBuffer.Truncate();
+
+ if (NS_FAILED(rv)) {
+ mCancel = true;
+ }
+
+ return rv;
+}
+
+NS_IMETHODIMP
+nsAboutCache::GetURIFlags(nsIURI* aURI, uint32_t* result) {
+ *result = nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
+ nsIAboutModule::IS_SECURE_CHROME_UI;
+ return NS_OK;
+}
+
+// static
+nsresult nsAboutCache::Create(REFNSIID aIID, void** aResult) {
+ RefPtr<nsAboutCache> about = new nsAboutCache();
+ return about->QueryInterface(aIID, aResult);
+}
+
+NS_IMETHODIMP
+nsAboutCache::GetChromeURI(nsIURI* aURI, nsIURI** chromeURI) {
+ return NS_ERROR_ILLEGAL_VALUE;
+}
+
+////////////////////////////////////////////////////////////////////////////////
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-05 02:09:32 +0000