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authorMatt A. Tobin <email@mattatobin.com>2018-02-11 07:03:16 -0500
committerMatt A. Tobin <email@mattatobin.com>2018-02-11 07:03:16 -0500
commit203eb0f61a09372310a2a8fb57e169cb3f47800b (patch)
tree8490329d3dae4de3c7ffd127bce1f65fdc009abd /toolkit/mozapps/extensions/AddonPathService.cpp
parente45706ca3acbb6530419433212becc61d5953a2d (diff)
parent8f6d3dab81c7f8f97ef197e26ab9439b09735b8f (diff)
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Merge branch 'ext-work'FF_Checkpoint_1
Diffstat (limited to 'toolkit/mozapps/extensions/AddonPathService.cpp')
-rw-r--r--toolkit/mozapps/extensions/AddonPathService.cpp233
1 files changed, 233 insertions, 0 deletions
diff --git a/toolkit/mozapps/extensions/AddonPathService.cpp b/toolkit/mozapps/extensions/AddonPathService.cpp
new file mode 100644
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--- /dev/null
+++ b/toolkit/mozapps/extensions/AddonPathService.cpp
@@ -0,0 +1,233 @@
+/* -*- Mode: C++; tab-width: 8; 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 "AddonPathService.h"
+
+#include "amIAddonManager.h"
+#include "nsIURI.h"
+#include "nsXULAppAPI.h"
+#include "jsapi.h"
+#include "nsServiceManagerUtils.h"
+#include "nsLiteralString.h"
+#include "nsThreadUtils.h"
+#include "nsIIOService.h"
+#include "nsNetUtil.h"
+#include "nsIFileURL.h"
+#include "nsIResProtocolHandler.h"
+#include "nsIChromeRegistry.h"
+#include "nsIJARURI.h"
+#include "nsJSUtils.h"
+#include "mozilla/dom/ScriptSettings.h"
+#include "mozilla/dom/ToJSValue.h"
+#include "mozilla/AddonPathService.h"
+#include "mozilla/Omnijar.h"
+
+#include <algorithm>
+
+namespace mozilla {
+
+struct PathEntryComparator
+{
+ typedef AddonPathService::PathEntry PathEntry;
+
+ bool Equals(const PathEntry& entry1, const PathEntry& entry2) const
+ {
+ return entry1.mPath == entry2.mPath;
+ }
+
+ bool LessThan(const PathEntry& entry1, const PathEntry& entry2) const
+ {
+ return entry1.mPath < entry2.mPath;
+ }
+};
+
+AddonPathService::AddonPathService()
+{
+}
+
+AddonPathService::~AddonPathService()
+{
+ sInstance = nullptr;
+}
+
+NS_IMPL_ISUPPORTS(AddonPathService, amIAddonPathService)
+
+AddonPathService *AddonPathService::sInstance;
+
+/* static */ AddonPathService*
+AddonPathService::GetInstance()
+{
+ if (!sInstance) {
+ sInstance = new AddonPathService();
+ }
+ NS_ADDREF(sInstance);
+ return sInstance;
+}
+
+static JSAddonId*
+ConvertAddonId(const nsAString& addonIdString)
+{
+ AutoSafeJSContext cx;
+ JS::RootedValue strv(cx);
+ if (!mozilla::dom::ToJSValue(cx, addonIdString, &strv)) {
+ return nullptr;
+ }
+ JS::RootedString str(cx, strv.toString());
+ return JS::NewAddonId(cx, str);
+}
+
+JSAddonId*
+AddonPathService::Find(const nsAString& path)
+{
+ // Use binary search to find the nearest entry that is <= |path|.
+ PathEntryComparator comparator;
+ unsigned index = mPaths.IndexOfFirstElementGt(PathEntry(path, nullptr), comparator);
+ if (index == 0) {
+ return nullptr;
+ }
+ const PathEntry& entry = mPaths[index - 1];
+
+ // Return the entry's addon if its path is a prefix of |path|.
+ if (StringBeginsWith(path, entry.mPath)) {
+ return entry.mAddonId;
+ }
+ return nullptr;
+}
+
+NS_IMETHODIMP
+AddonPathService::FindAddonId(const nsAString& path, nsAString& addonIdString)
+{
+ if (JSAddonId* id = Find(path)) {
+ JSFlatString* flat = JS_ASSERT_STRING_IS_FLAT(JS::StringOfAddonId(id));
+ AssignJSFlatString(addonIdString, flat);
+ }
+ return NS_OK;
+}
+
+/* static */ JSAddonId*
+AddonPathService::FindAddonId(const nsAString& path)
+{
+ // If no service has been created, then we're not going to find anything.
+ if (!sInstance) {
+ return nullptr;
+ }
+
+ return sInstance->Find(path);
+}
+
+NS_IMETHODIMP
+AddonPathService::InsertPath(const nsAString& path, const nsAString& addonIdString)
+{
+ JSAddonId* addonId = ConvertAddonId(addonIdString);
+
+ // Add the new path in sorted order.
+ PathEntryComparator comparator;
+ mPaths.InsertElementSorted(PathEntry(path, addonId), comparator);
+ return NS_OK;
+}
+
+static nsresult
+ResolveURI(nsIURI* aURI, nsAString& out)
+{
+ bool equals;
+ nsresult rv;
+ nsCOMPtr<nsIURI> uri;
+ nsAutoCString spec;
+
+ // Resolve resource:// URIs. At the end of this if/else block, we
+ // have both spec and uri variables identifying the same URI.
+ if (NS_SUCCEEDED(aURI->SchemeIs("resource", &equals)) && equals) {
+ nsCOMPtr<nsIIOService> ioService = do_GetIOService(&rv);
+ if (NS_WARN_IF(NS_FAILED(rv)))
+ return rv;
+
+ nsCOMPtr<nsIProtocolHandler> ph;
+ rv = ioService->GetProtocolHandler("resource", getter_AddRefs(ph));
+ if (NS_WARN_IF(NS_FAILED(rv)))
+ return rv;
+
+ nsCOMPtr<nsIResProtocolHandler> irph(do_QueryInterface(ph, &rv));
+ if (NS_WARN_IF(NS_FAILED(rv)))
+ return rv;
+
+ rv = irph->ResolveURI(aURI, spec);
+ if (NS_WARN_IF(NS_FAILED(rv)))
+ return rv;
+
+ rv = ioService->NewURI(spec, nullptr, nullptr, getter_AddRefs(uri));
+ if (NS_WARN_IF(NS_FAILED(rv)))
+ return rv;
+ } else if (NS_SUCCEEDED(aURI->SchemeIs("chrome", &equals)) && equals) {
+ nsCOMPtr<nsIChromeRegistry> chromeReg =
+ mozilla::services::GetChromeRegistryService();
+ if (NS_WARN_IF(!chromeReg))
+ return NS_ERROR_UNEXPECTED;
+
+ rv = chromeReg->ConvertChromeURL(aURI, getter_AddRefs(uri));
+ if (NS_WARN_IF(NS_FAILED(rv)))
+ return rv;
+ } else {
+ uri = aURI;
+ }
+
+ if (NS_SUCCEEDED(uri->SchemeIs("jar", &equals)) && equals) {
+ nsCOMPtr<nsIJARURI> jarURI = do_QueryInterface(uri, &rv);
+ if (NS_WARN_IF(NS_FAILED(rv)))
+ return rv;
+
+ nsCOMPtr<nsIURI> jarFileURI;
+ rv = jarURI->GetJARFile(getter_AddRefs(jarFileURI));
+ if (NS_WARN_IF(NS_FAILED(rv)))
+ return rv;
+
+ return ResolveURI(jarFileURI, out);
+ }
+
+ if (NS_SUCCEEDED(uri->SchemeIs("file", &equals)) && equals) {
+ nsCOMPtr<nsIFileURL> baseFileURL = do_QueryInterface(uri, &rv);
+ if (NS_WARN_IF(NS_FAILED(rv)))
+ return rv;
+
+ nsCOMPtr<nsIFile> file;
+ rv = baseFileURL->GetFile(getter_AddRefs(file));
+ if (NS_WARN_IF(NS_FAILED(rv)))
+ return rv;
+
+ return file->GetPath(out);
+ }
+ return NS_ERROR_FAILURE;
+}
+
+JSAddonId*
+MapURIToAddonID(nsIURI* aURI)
+{
+ if (!NS_IsMainThread() || !XRE_IsParentProcess()) {
+ return nullptr;
+ }
+
+ nsAutoString filePath;
+ nsresult rv = ResolveURI(aURI, filePath);
+ if (NS_FAILED(rv))
+ return nullptr;
+
+ nsCOMPtr<nsIFile> greJar = Omnijar::GetPath(Omnijar::GRE);
+ nsCOMPtr<nsIFile> appJar = Omnijar::GetPath(Omnijar::APP);
+ if (greJar && appJar) {
+ nsAutoString greJarString, appJarString;
+ if (NS_FAILED(greJar->GetPath(greJarString)) || NS_FAILED(appJar->GetPath(appJarString)))
+ return nullptr;
+
+ // If |aURI| is part of either Omnijar, then it can't be part of an
+ // add-on. This catches pretty much all URLs for Firefox content.
+ if (filePath.Equals(greJarString) || filePath.Equals(appJarString))
+ return nullptr;
+ }
+
+ // If it's not part of Firefox, we resort to binary searching through the
+ // add-on paths.
+ return AddonPathService::FindAddonId(filePath);
+}
+
+}