Bug 769350 - Implement trusted/certified app scheme support [r=vingtetun]

b2g/installer/package-manifest.in

@@ -473,6 +473,9 @@
 @BINPATH@/components/SystemMessageManager.js
 @BINPATH@/components/SystemMessageManager.manifest
 
+@BINPATH@/components/AppProtocolHandler.js
+@BINPATH@/components/AppProtocolHandler.manifest
+
 ; Modules
 @BINPATH@/modules/*
 

dom/apps/src/Webapps.jsm

@@ -51,7 +51,7 @@ let DOMApplicationRegistry = {
                     "Webapps:GetSelf",
                     "Webapps:GetInstalled", "Webapps:GetNotInstalled",
                     "Webapps:Launch", "Webapps:GetAll",
-                    "Webapps:InstallPackage"];
+                    "Webapps:InstallPackage", "Webapps:GetBasePath"];
 
     this.messages.forEach((function(msgName) {
       ppmm.addMessageListener(msgName, this);
@@ -188,6 +188,9 @@ let DOMApplicationRegistry = {
       case "Webapps:InstallPackage":
         this.installPackage(msg);
         break;
+      case "Webapps:GetBasePath":
+        return FileUtils.getFile(DIRECTORY_NAME, ["webapps"], true).path;
+        break;
     }
   },
 

modules/libjar/nsIJARChannel.idl

@@ -15,4 +15,9 @@ interface nsIJARChannel : nsIChannel
      * channel.
      */
     readonly attribute boolean isUnsafe;
+
+    /**
+     * Forces the uri to be a app:// uri.
+     */
+    void setAppURI(in nsIURI uri);
 };

modules/libjar/nsJARChannel.cpp

@@ -186,7 +186,8 @@ nsJARInputThunk::IsNonBlocking(bool *nonBlocking)
 
 
 nsJARChannel::nsJARChannel()
-    : mContentLength(-1)
+    : mAppURI(nsnull)
+    , mContentLength(-1)
     , mLoadFlags(LOAD_NORMAL)
     , mStatus(NS_OK)
     , mIsPending(false)
@@ -476,7 +477,12 @@ nsJARChannel::SetOriginalURI(nsIURI *aURI)
 NS_IMETHODIMP
 nsJARChannel::GetURI(nsIURI **aURI)
 {
-    NS_IF_ADDREF(*aURI = mJarURI);
+    if (mAppURI) {
+        NS_IF_ADDREF(*aURI = mAppURI);
+    } else {
+        NS_IF_ADDREF(*aURI = mJarURI);
+    }
+
     return NS_OK;
 }
 
@@ -758,6 +764,20 @@ nsJARChannel::GetIsUnsafe(bool *isUnsafe)
     return NS_OK;
 }
 
+NS_IMETHODIMP
+nsJARChannel::SetAppURI(nsIURI *aURI) {
+    NS_ENSURE_ARG_POINTER(aURI);
+
+    nsCAutoString scheme;
+    aURI->GetScheme(scheme);
+    if (!scheme.EqualsLiteral("app")) {
+        return NS_ERROR_INVALID_ARG;
+    }
+
+    mAppURI = aURI;
+    return NS_OK;
+}
+
 //-----------------------------------------------------------------------------
 // nsIDownloadObserver
 //-----------------------------------------------------------------------------

modules/libjar/nsJARChannel.h

@@ -55,6 +55,7 @@ private:
 
     nsCOMPtr<nsIJARURI>             mJarURI;
     nsCOMPtr<nsIURI>                mOriginalURI;
+    nsCOMPtr<nsIURI>                mAppURI;
     nsCOMPtr<nsISupports>           mOwner;
     nsCOMPtr<nsIInterfaceRequestor> mCallbacks;
     nsCOMPtr<nsISupports>           mSecurityInfo;

netwerk/protocol/Makefile.in

@@ -12,6 +12,7 @@ include $(DEPTH)/config/autoconf.mk
 
 PARALLEL_DIRS = \
   about \
+  app \
   data \
   device \
   file \

netwerk/protocol/app/AppProtocolHandler.js

@@ -0,0 +1,88 @@
+/* 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/. */
+
+"use strict";
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cu = Components.utils;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+
+XPCOMUtils.defineLazyGetter(this, "cpmm", function() {
+  return Cc["@mozilla.org/childprocessmessagemanager;1"]
+         .getService(Ci.nsIFrameMessageManager)
+         .QueryInterface(Ci.nsISyncMessageSender);
+});
+
+function AppProtocolHandler() {
+  this._basePath = null;
+}
+
+AppProtocolHandler.prototype = {
+  classID: Components.ID("{b7ad6144-d344-4687-b2d0-b6b9dce1f07f}"),
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIProtocolHandler]),
+
+  scheme: "app",
+  defaultPort: -1,
+  // Using the same flags as the JAR protocol handler.
+  protocolFlags2: Ci.nsIProtocolHandler.URI_NORELATIVE |
+                  Ci.nsIProtocolHandler.URI_NOAUTH |
+                  Ci.nsIProtocolHandler.URI_LOADABLE_BY_ANYONE,
+
+  get basePath() {
+    if (!this._basePath) {
+      this._basePath = cpmm.sendSyncMessage("Webapps:GetBasePath", { })[0] + "/";
+    }
+
+    return this._basePath;
+  },
+
+  newURI: function app_phNewURI(aSpec, aOriginCharset, aBaseURI) {
+    let uri = Cc["@mozilla.org/network/standard-url;1"]
+              .createInstance(Ci.nsIStandardURL);
+    uri.init(Ci.nsIStandardURL.URLTYPE_STANDARD, -1, aSpec, aOriginCharset,
+             aBaseURI);
+    return uri.QueryInterface(Ci.nsIURI);
+  },
+
+  newChannel: function app_phNewChannel(aURI) {
+    // We map app://ABCDEF/path/to/file.ext to
+    // jar:file:///path/to/profile/webapps/ABCDEF/application.zip!/path/to/file.ext
+    let noScheme = aURI.spec.substring(6);
+    let firstSlash = noScheme.indexOf("/");
+
+    let appId = noScheme;
+    let fileSpec = aURI.path;
+
+    if (firstSlash) {
+      appId = noScheme.substring(0, firstSlash);
+    }
+
+    // Simulates default behavior of http servers:
+    // Adds index.html if the file spec ends in / in /#anchor
+    let lastSlash = fileSpec.lastIndexOf("/");
+    if (lastSlash == fileSpec.length - 1) {
+      fileSpec += "index.html";
+    } else if (fileSpec[lastSlash + 1] == '#') {
+      let anchor = fileSpec.substring(lastSlash + 1);
+      fileSpec = fileSpec.substring(0, lastSlash) + "/index.html" + anchor;
+    }
+
+    // Build a jar channel and masquerade as an app:// URI.
+    let uri = "jar:file://" + this.basePath + appId + "/application.zip!" + fileSpec;
+    let channel = Services.io.newChannel(uri, null, null);
+    channel.QueryInterface(Ci.nsIJARChannel).setAppURI(aURI);
+    channel.QueryInterface(Ci.nsIChannel).originalURI = aURI;
+
+    return channel;
+  },
+
+  allowPort: function app_phAllowPort(aPort, aScheme) {
+    return false;
+  }
+};
+
+const NSGetFactory = XPCOMUtils.generateNSGetFactory([AppProtocolHandler]);

netwerk/protocol/app/AppProtocolHandler.manifest

@@ -0,0 +1,3 @@
+# AppProtocolHander.js
+component {b7ad6144-d344-4687-b2d0-b6b9dce1f07f} AppProtocolHandler.js
+contract @mozilla.org/network/protocol;1?name=app {b7ad6144-d344-4687-b2d0-b6b9dce1f07f}

netwerk/protocol/app/Makefile.in

@@ -0,0 +1,17 @@
+# 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/.
+
+DEPTH     = ../../..
+topsrcdir = @top_srcdir@
+srcdir    = @srcdir@
+VPATH     = @srcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+EXTRA_COMPONENTS = \
+  AppProtocolHandler.js \
+  AppProtocolHandler.manifest \
+  $(NULL)
+
+include $(topsrcdir)/config/rules.mk