mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-10-10 13:23:42 +00:00
382 lines
9.8 KiB
C++
382 lines
9.8 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsThreadUtils.h"
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#include "nsAndroidHistory.h"
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#include "nsComponentManagerUtils.h"
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#include "AndroidBridge.h"
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#include "Link.h"
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#include "nsIURI.h"
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#include "nsIObserverService.h"
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#include "mozilla/Services.h"
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#include "mozilla/Preferences.h"
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#define NS_LINK_VISITED_EVENT_TOPIC "link-visited"
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// We copy Places here.
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// Note that we don't yet observe this pref at runtime.
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#define PREF_HISTORY_ENABLED "places.history.enabled"
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// Time we wait to see if a pending visit is really a redirect
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#define PENDING_REDIRECT_TIMEOUT 3000
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using namespace mozilla;
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using mozilla::dom::Link;
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NS_IMPL_ISUPPORTS(nsAndroidHistory, IHistory, nsIRunnable, nsITimerCallback)
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nsAndroidHistory* nsAndroidHistory::sHistory = nullptr;
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/*static*/
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nsAndroidHistory*
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nsAndroidHistory::GetSingleton()
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{
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if (!sHistory) {
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sHistory = new nsAndroidHistory();
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NS_ENSURE_TRUE(sHistory, nullptr);
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}
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NS_ADDREF(sHistory);
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return sHistory;
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}
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nsAndroidHistory::nsAndroidHistory()
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: mHistoryEnabled(true)
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{
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LoadPrefs();
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mTimer = do_CreateInstance(NS_TIMER_CONTRACTID);
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}
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NS_IMETHODIMP
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nsAndroidHistory::RegisterVisitedCallback(nsIURI *aURI, Link *aContent)
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{
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if (!aContent || !aURI)
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return NS_OK;
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// Silently return if URI is something we would never add to DB.
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bool canAdd;
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nsresult rv = CanAddURI(aURI, &canAdd);
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NS_ENSURE_SUCCESS(rv, rv);
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if (!canAdd) {
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return NS_OK;
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}
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nsAutoCString uri;
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rv = aURI->GetSpec(uri);
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if (NS_FAILED(rv)) return rv;
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NS_ConvertUTF8toUTF16 uriString(uri);
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nsTArray<Link*>* list = mListeners.Get(uriString);
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if (! list) {
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list = new nsTArray<Link*>();
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mListeners.Put(uriString, list);
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}
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list->AppendElement(aContent);
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if (jni::IsAvailable()) {
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widget::GeckoAppShell::CheckURIVisited(uriString);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsAndroidHistory::UnregisterVisitedCallback(nsIURI *aURI, Link *aContent)
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{
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if (!aContent || !aURI)
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return NS_OK;
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nsAutoCString uri;
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nsresult rv = aURI->GetSpec(uri);
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if (NS_FAILED(rv)) return rv;
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NS_ConvertUTF8toUTF16 uriString(uri);
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nsTArray<Link*>* list = mListeners.Get(uriString);
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if (! list)
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return NS_OK;
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list->RemoveElement(aContent);
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if (list->IsEmpty()) {
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mListeners.Remove(uriString);
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delete list;
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}
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return NS_OK;
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}
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void
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nsAndroidHistory::AppendToRecentlyVisitedURIs(nsIURI* aURI) {
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if (mRecentlyVisitedURIs.Length() < RECENTLY_VISITED_URI_SIZE) {
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// Append a new element while the array is not full.
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mRecentlyVisitedURIs.AppendElement(aURI);
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} else {
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// Otherwise, replace the oldest member.
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mRecentlyVisitedURIsNextIndex %= RECENTLY_VISITED_URI_SIZE;
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mRecentlyVisitedURIs.ElementAt(mRecentlyVisitedURIsNextIndex) = aURI;
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mRecentlyVisitedURIsNextIndex++;
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}
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}
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bool
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nsAndroidHistory::ShouldRecordHistory() {
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return mHistoryEnabled;
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}
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void
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nsAndroidHistory::LoadPrefs() {
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mHistoryEnabled = Preferences::GetBool(PREF_HISTORY_ENABLED, true);
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}
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inline bool
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nsAndroidHistory::IsRecentlyVisitedURI(nsIURI* aURI) {
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bool equals = false;
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RecentlyVisitedArray::index_type i;
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RecentlyVisitedArray::size_type length = mRecentlyVisitedURIs.Length();
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for (i = 0; i < length && !equals; ++i) {
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aURI->Equals(mRecentlyVisitedURIs.ElementAt(i), &equals);
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}
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return equals;
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}
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void
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nsAndroidHistory::AppendToEmbedURIs(nsIURI* aURI) {
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if (mEmbedURIs.Length() < EMBED_URI_SIZE) {
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// Append a new element while the array is not full.
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mEmbedURIs.AppendElement(aURI);
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} else {
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// Otherwise, replace the oldest member.
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mEmbedURIsNextIndex %= EMBED_URI_SIZE;
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mEmbedURIs.ElementAt(mEmbedURIsNextIndex) = aURI;
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mEmbedURIsNextIndex++;
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}
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}
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inline bool
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nsAndroidHistory::IsEmbedURI(nsIURI* aURI) {
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bool equals = false;
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EmbedArray::index_type i;
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EmbedArray::size_type length = mEmbedURIs.Length();
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for (i = 0; i < length && !equals; ++i) {
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aURI->Equals(mEmbedURIs.ElementAt(i), &equals);
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}
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return equals;
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}
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inline bool
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nsAndroidHistory::RemovePendingVisitURI(nsIURI* aURI) {
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// Remove the first pending URI that matches. Return a boolean to
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// let the caller know if we removed a URI or not.
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bool equals = false;
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PendingVisitArray::index_type i;
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for (i = 0; i < mPendingVisitURIs.Length(); ++i) {
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aURI->Equals(mPendingVisitURIs.ElementAt(i), &equals);
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if (equals) {
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mPendingVisitURIs.RemoveElementAt(i);
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return true;
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}
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}
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return false;
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}
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NS_IMETHODIMP
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nsAndroidHistory::Notify(nsITimer *timer)
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{
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// Any pending visits left in the queue have exceeded our threshold for
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// redirects, so save them
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PendingVisitArray::index_type i;
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for (i = 0; i < mPendingVisitURIs.Length(); ++i) {
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SaveVisitURI(mPendingVisitURIs.ElementAt(i));
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}
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mPendingVisitURIs.Clear();
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return NS_OK;
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}
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void
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nsAndroidHistory::SaveVisitURI(nsIURI* aURI) {
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// Add the URI to our cache so we can take a fast path later
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AppendToRecentlyVisitedURIs(aURI);
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if (jni::IsAvailable()) {
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// Save this URI in our history
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nsAutoCString spec;
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(void)aURI->GetSpec(spec);
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widget::GeckoAppShell::MarkURIVisited(NS_ConvertUTF8toUTF16(spec));
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}
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// Finally, notify that we've been visited.
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nsCOMPtr<nsIObserverService> obsService = mozilla::services::GetObserverService();
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if (obsService) {
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obsService->NotifyObservers(aURI, NS_LINK_VISITED_EVENT_TOPIC, nullptr);
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}
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}
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NS_IMETHODIMP
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nsAndroidHistory::VisitURI(nsIURI *aURI, nsIURI *aLastVisitedURI, uint32_t aFlags)
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{
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if (!aURI) {
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return NS_OK;
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}
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if (!(aFlags & VisitFlags::TOP_LEVEL)) {
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return NS_OK;
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}
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if (aFlags & VisitFlags::UNRECOVERABLE_ERROR) {
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return NS_OK;
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}
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// Silently return if URI is something we shouldn't add to DB.
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bool canAdd;
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nsresult rv = CanAddURI(aURI, &canAdd);
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NS_ENSURE_SUCCESS(rv, rv);
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if (!canAdd) {
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return NS_OK;
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}
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if (aLastVisitedURI) {
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if (aFlags & VisitFlags::REDIRECT_SOURCE ||
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aFlags & VisitFlags::REDIRECT_PERMANENT ||
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aFlags & VisitFlags::REDIRECT_TEMPORARY) {
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// aLastVisitedURI redirected to aURI. We want to ignore aLastVisitedURI,
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// so remove the pending visit. We want to give aURI a chance to be saved,
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// so don't return early.
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RemovePendingVisitURI(aLastVisitedURI);
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}
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bool same;
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rv = aURI->Equals(aLastVisitedURI, &same);
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NS_ENSURE_SUCCESS(rv, rv);
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if (same && IsRecentlyVisitedURI(aURI)) {
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// Do not save refresh visits if we have visited this URI recently.
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return NS_OK;
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}
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// Since we have a last visited URI and we were not redirected, it is
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// safe to save the visit if it's still pending.
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if (RemovePendingVisitURI(aLastVisitedURI)) {
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SaveVisitURI(aLastVisitedURI);
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}
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}
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// Let's wait and see if this visit is not a redirect.
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mPendingVisitURIs.AppendElement(aURI);
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mTimer->InitWithCallback(this, PENDING_REDIRECT_TIMEOUT, nsITimer::TYPE_ONE_SHOT);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsAndroidHistory::SetURITitle(nsIURI *aURI, const nsAString& aTitle)
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{
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// Silently return if URI is something we shouldn't add to DB.
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bool canAdd;
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nsresult rv = CanAddURI(aURI, &canAdd);
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NS_ENSURE_SUCCESS(rv, rv);
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if (!canAdd) {
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return NS_OK;
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}
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if (IsEmbedURI(aURI)) {
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return NS_OK;
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}
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if (jni::IsAvailable()) {
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nsAutoCString uri;
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nsresult rv = aURI->GetSpec(uri);
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if (NS_FAILED(rv)) return rv;
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NS_ConvertUTF8toUTF16 uriString(uri);
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widget::GeckoAppShell::SetURITitle(uriString, aTitle);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsAndroidHistory::NotifyVisited(nsIURI *aURI)
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{
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if (aURI && sHistory) {
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nsAutoCString spec;
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(void)aURI->GetSpec(spec);
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sHistory->mPendingLinkURIs.Push(NS_ConvertUTF8toUTF16(spec));
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NS_DispatchToMainThread(sHistory);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsAndroidHistory::Run()
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{
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while (! mPendingLinkURIs.IsEmpty()) {
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nsString uriString = mPendingLinkURIs.Pop();
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nsTArray<Link*>* list = sHistory->mListeners.Get(uriString);
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if (list) {
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for (unsigned int i = 0; i < list->Length(); i++) {
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list->ElementAt(i)->SetLinkState(eLinkState_Visited);
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}
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// as per the IHistory interface contract, remove the
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// Link pointers once they have been notified
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mListeners.Remove(uriString);
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delete list;
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}
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}
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return NS_OK;
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}
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// Filter out unwanted URIs such as "chrome:", "mailbox:", etc.
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//
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// The model is if we don't know differently then add which basically means
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// we are suppose to try all the things we know not to allow in and then if
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// we don't bail go on and allow it in.
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//
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// Logic ported from nsNavHistory::CanAddURI.
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NS_IMETHODIMP
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nsAndroidHistory::CanAddURI(nsIURI* aURI, bool* canAdd)
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{
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NS_ASSERTION(NS_IsMainThread(), "This can only be called on the main thread");
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NS_ENSURE_ARG(aURI);
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NS_ENSURE_ARG_POINTER(canAdd);
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// See if we're disabled.
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if (!ShouldRecordHistory()) {
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*canAdd = false;
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return NS_OK;
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}
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nsAutoCString scheme;
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nsresult rv = aURI->GetScheme(scheme);
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NS_ENSURE_SUCCESS(rv, rv);
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// first check the most common cases (HTTP, HTTPS) to allow in to avoid most
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// of the work
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if (scheme.EqualsLiteral("http")) {
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*canAdd = true;
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return NS_OK;
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}
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if (scheme.EqualsLiteral("https")) {
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*canAdd = true;
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return NS_OK;
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}
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// now check for all bad things
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if (scheme.EqualsLiteral("about") ||
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scheme.EqualsLiteral("imap") ||
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scheme.EqualsLiteral("news") ||
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scheme.EqualsLiteral("mailbox") ||
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scheme.EqualsLiteral("moz-anno") ||
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scheme.EqualsLiteral("view-source") ||
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scheme.EqualsLiteral("chrome") ||
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scheme.EqualsLiteral("resource") ||
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scheme.EqualsLiteral("data") ||
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scheme.EqualsLiteral("wyciwyg") ||
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scheme.EqualsLiteral("javascript") ||
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scheme.EqualsLiteral("blob")) {
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*canAdd = false;
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return NS_OK;
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}
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*canAdd = true;
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return NS_OK;
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}
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