The Tor Browser: mobile/android/components/build/nsAndroidHistory.cpp@6474c204b198 (annotated)

mobile/android/components/build/nsAndroidHistory.cpp@6474c204b198 (annotated)

mobile/android/components/build/nsAndroidHistory.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* 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 "nsThreadUtils.h"
 #include "nsAndroidHistory.h"
 #include "AndroidBridge.h"
 #include "Link.h"
 #include "nsIURI.h"
 #include "mozilla/Services.h"
 #include "nsIObserverService.h"
 #define NS_LINK_VISITED_EVENT_TOPIC "link-visited"
 using namespace mozilla;
 using mozilla::dom::Link;
 NS_IMPL_ISUPPORTS(nsAndroidHistory, IHistory, nsIRunnable)
 nsAndroidHistory* nsAndroidHistory::sHistory = nullptr;
 /*static*/
 nsAndroidHistory*
 nsAndroidHistory::GetSingleton()
 {
   if (!sHistory) {
     sHistory = new nsAndroidHistory();
     NS_ENSURE_TRUE(sHistory, nullptr);
   }
   NS_ADDREF(sHistory);
   return sHistory;
 }
 nsAndroidHistory::nsAndroidHistory()
 {
 }
 NS_IMETHODIMP
 nsAndroidHistory::RegisterVisitedCallback(nsIURI *aURI, Link *aContent)
 {
   if (!aContent || !aURI)
     return NS_OK;
   // Silently return if URI is something we would never add to DB.
   bool canAdd;
   nsresult rv = CanAddURI(aURI, &canAdd);
   NS_ENSURE_SUCCESS(rv, rv);
   if (!canAdd) {
     return NS_OK;
   }
   nsAutoCString uri;
   rv = aURI->GetSpec(uri);
   if (NS_FAILED(rv)) return rv;
   NS_ConvertUTF8toUTF16 uriString(uri);
   nsTArray<Link*>* list = mListeners.Get(uriString);
   if (! list) {
     list = new nsTArray<Link*>();
     mListeners.Put(uriString, list);
   }
   list->AppendElement(aContent);
   if (AndroidBridge::HasEnv()) {
     mozilla::widget::android::GeckoAppShell::CheckURIVisited(uriString);
   }
   return NS_OK;
 }
 NS_IMETHODIMP
 nsAndroidHistory::UnregisterVisitedCallback(nsIURI *aURI, Link *aContent)
 {
   if (!aContent || !aURI)
     return NS_OK;
   nsAutoCString uri;
   nsresult rv = aURI->GetSpec(uri);
   if (NS_FAILED(rv)) return rv;
   NS_ConvertUTF8toUTF16 uriString(uri);
   nsTArray<Link*>* list = mListeners.Get(uriString);
   if (! list)
     return NS_OK;
   list->RemoveElement(aContent);
   if (list->IsEmpty()) {
     mListeners.Remove(uriString);
     delete list;
   }
   return NS_OK;
 }
 void
 nsAndroidHistory::AppendToRecentlyVisitedURIs(nsIURI* aURI) {
   if (mRecentlyVisitedURIs.Length() < RECENTLY_VISITED_URI_SIZE) {
     // Append a new element while the array is not full.
     mRecentlyVisitedURIs.AppendElement(aURI);
   } else {
     // Otherwise, replace the oldest member.
     mRecentlyVisitedURIsNextIndex %= RECENTLY_VISITED_URI_SIZE;
     mRecentlyVisitedURIs.ElementAt(mRecentlyVisitedURIsNextIndex) = aURI;
     mRecentlyVisitedURIsNextIndex++;
   }
 }
 inline bool
 nsAndroidHistory::IsRecentlyVisitedURI(nsIURI* aURI) {
   bool equals = false;
   RecentlyVisitedArray::index_type i;
   RecentlyVisitedArray::size_type length = mRecentlyVisitedURIs.Length();
   for (i = 0; i < length && !equals; ++i) {
     aURI->Equals(mRecentlyVisitedURIs.ElementAt(i), &equals);
   }
   return equals;
 }
 void
 nsAndroidHistory::AppendToEmbedURIs(nsIURI* aURI) {
   if (mEmbedURIs.Length() < EMBED_URI_SIZE) {
     // Append a new element while the array is not full.
     mEmbedURIs.AppendElement(aURI);
   } else {
     // Otherwise, replace the oldest member.
     mEmbedURIsNextIndex %= EMBED_URI_SIZE;
     mEmbedURIs.ElementAt(mEmbedURIsNextIndex) = aURI;
     mEmbedURIsNextIndex++;
   }
 }
 inline bool
 nsAndroidHistory::IsEmbedURI(nsIURI* aURI) {
   bool equals = false;
   EmbedArray::index_type i;
   EmbedArray::size_type length = mEmbedURIs.Length();
   for (i = 0; i < length && !equals; ++i) {
     aURI->Equals(mEmbedURIs.ElementAt(i), &equals);
   }
   return equals;
 }
 NS_IMETHODIMP
 nsAndroidHistory::VisitURI(nsIURI *aURI, nsIURI *aLastVisitedURI, uint32_t aFlags)
 {
   if (!aURI)
     return NS_OK;
   // Silently return if URI is something we shouldn't add to DB.
   bool canAdd;
   nsresult rv = CanAddURI(aURI, &canAdd);
   NS_ENSURE_SUCCESS(rv, rv);
   if (!canAdd) {
     return NS_OK;
   }
   if (aLastVisitedURI) {
     bool same;
     rv = aURI->Equals(aLastVisitedURI, &same);
     NS_ENSURE_SUCCESS(rv, rv);
     if (same && IsRecentlyVisitedURI(aURI)) {
       // Do not save refresh visits if we have visited this URI recently.
       return NS_OK;
     }
   }
   if (!(aFlags & VisitFlags::TOP_LEVEL)) {
     AppendToEmbedURIs(aURI);
     return NS_OK;
   }
   if (aFlags & VisitFlags::REDIRECT_SOURCE)
     return NS_OK;
   if (aFlags & VisitFlags::UNRECOVERABLE_ERROR)
     return NS_OK;
   if (AndroidBridge::HasEnv()) {
     nsAutoCString uri;
     rv = aURI->GetSpec(uri);
     if (NS_FAILED(rv)) return rv;
     NS_ConvertUTF8toUTF16 uriString(uri);
     mozilla::widget::android::GeckoAppShell::MarkURIVisited(uriString);
   }
   AppendToRecentlyVisitedURIs(aURI);
   // Finally, notify that we've been visited.
   nsCOMPtr<nsIObserverService> obsService =
     mozilla::services::GetObserverService();
   if (obsService) {
     obsService->NotifyObservers(aURI, NS_LINK_VISITED_EVENT_TOPIC, nullptr);
   }
   return NS_OK;
 }
 NS_IMETHODIMP
 nsAndroidHistory::SetURITitle(nsIURI *aURI, const nsAString& aTitle)
 {
   // Silently return if URI is something we shouldn't add to DB.
   bool canAdd;
   nsresult rv = CanAddURI(aURI, &canAdd);
   NS_ENSURE_SUCCESS(rv, rv);
   if (!canAdd) {
     return NS_OK;
   }
   if (IsEmbedURI(aURI)) {
     return NS_OK;
   }
   if (AndroidBridge::HasEnv()) {
     nsAutoCString uri;
     nsresult rv = aURI->GetSpec(uri);
     if (NS_FAILED(rv)) return rv;
     NS_ConvertUTF8toUTF16 uriString(uri);
     mozilla::widget::android::GeckoAppShell::SetURITitle(uriString, aTitle);
   }
   return NS_OK;
 }
 NS_IMETHODIMP
 nsAndroidHistory::NotifyVisited(nsIURI *aURI)
 {
   if (aURI && sHistory) {
     nsAutoCString spec;
     (void)aURI->GetSpec(spec);
     sHistory->mPendingURIs.Push(NS_ConvertUTF8toUTF16(spec));
     NS_DispatchToMainThread(sHistory);
   }
   return NS_OK;
 }
 NS_IMETHODIMP
 nsAndroidHistory::Run()
 {
   while (! mPendingURIs.IsEmpty()) {
     nsString uriString = mPendingURIs.Pop();
     nsTArray<Link*>* list = sHistory->mListeners.Get(uriString);
     if (list) {
       for (unsigned int i = 0; i < list->Length(); i++) {
         list->ElementAt(i)->SetLinkState(eLinkState_Visited);
       }
       // as per the IHistory interface contract, remove the
       // Link pointers once they have been notified
       mListeners.Remove(uriString);
       delete list;
     }
   }
   return NS_OK;
 }
 // Filter out unwanted URIs such as "chrome:", "mailbox:", etc.
 //
 // The model is if we don't know differently then add which basically means
 // we are suppose to try all the things we know not to allow in and then if
 // we don't bail go on and allow it in.
 //
 // Logic ported from nsNavHistory::CanAddURI.
 NS_IMETHODIMP
 nsAndroidHistory::CanAddURI(nsIURI* aURI, bool* canAdd)
 {
   NS_ASSERTION(NS_IsMainThread(), "This can only be called on the main thread");
   NS_ENSURE_ARG(aURI);
   NS_ENSURE_ARG_POINTER(canAdd);
   nsAutoCString scheme;
   nsresult rv = aURI->GetScheme(scheme);
   NS_ENSURE_SUCCESS(rv, rv);
   // first check the most common cases (HTTP, HTTPS) to allow in to avoid most
   // of the work
   if (scheme.EqualsLiteral("http")) {
     *canAdd = true;
     return NS_OK;
   }
   if (scheme.EqualsLiteral("https")) {
     *canAdd = true;
     return NS_OK;
   }
   // now check for all bad things
   if (scheme.EqualsLiteral("about") ||
       scheme.EqualsLiteral("imap") ||
       scheme.EqualsLiteral("news") ||
       scheme.EqualsLiteral("mailbox") ||
       scheme.EqualsLiteral("moz-anno") ||
       scheme.EqualsLiteral("view-source") ||
       scheme.EqualsLiteral("chrome") ||
       scheme.EqualsLiteral("resource") ||
       scheme.EqualsLiteral("data") ||
       scheme.EqualsLiteral("wyciwyg") ||
       scheme.EqualsLiteral("javascript") ||
       scheme.EqualsLiteral("blob")) {
     *canAdd = false;
     return NS_OK;
   }
   *canAdd = true;
   return NS_OK;
 }

The Tor Browser / annotate

mobile/android/components/build/nsAndroidHistory.cpp@6474c204b198 (annotated)

mobile/android/components/build/nsAndroidHistory.cpp