Bug 1100964 - Reset phone while enabling unrestricted devtools mode. r=fabrice, r=sicking

--HG--
extra : amend_source : 905e0ea7680baad061c66a0b6dc77dbf23258218

b2g/components/ProcessGlobal.js

@@ -22,6 +22,10 @@ const Cu = Components.utils;
 Cu.import('resource://gre/modules/Services.jsm');
 Cu.import('resource://gre/modules/XPCOMUtils.jsm');
 
+XPCOMUtils.defineLazyServiceGetter(this, "settings",
+                                   "@mozilla.org/settingsService;1",
+                                   "nsISettingsService");
+
 function debug(msg) {
   log(msg);
 }
@@ -89,14 +93,19 @@ ProcessGlobal.prototype = {
     }
   },
 
-  processWipeFile: function(text) {
-    log("processWipeFile " + text);
+  processCommandsFile: function(text) {
+    log("processCommandsFile " + text);
     let lines = text.split("\n");
     lines.forEach((line) => {
       log(line);
       let params = line.split(" ");
       if (params[0] == "wipe") {
         this.wipeDir(params[1]);
+      } else if (params[0] == "root") {
+        log("unrestrict devtools");
+        Services.prefs.setBoolPref("devtools.debugger.forbid-certified-apps", false);
+        let lock = settings.createLock();
+        lock.set("developer.menu.enabled", true, null);
       }
     });
   },
@@ -113,7 +122,7 @@ ProcessGlobal.prototype = {
     let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
     file.initWithPath(postResetFile);
     if (!file.exists()) {
-      debug("Nothing to wipe.")
+      debug("No additional command.")
       return;
     }
 
@@ -122,7 +131,7 @@ ProcessGlobal.prototype = {
       (array) => {
         file.remove(false);
         let decoder = new TextDecoder();
-        this.processWipeFile(decoder.decode(array));
+        this.processCommandsFile(decoder.decode(array));
       },
       function onError(error) {
         debug("Error: " + error);

b2g/components/RecoveryService.js

@@ -81,19 +81,24 @@ RecoveryService.prototype = {
     }
 
     log("factoryReset " + reason);
+    let commands = [];
     if (reason == "wipe") {
       let volumeService = Cc["@mozilla.org/telephony/volume-service;1"]
                           .getService(Ci.nsIVolumeService);
       let volNames = volumeService.getVolumeNames();
       log("Found " + volNames.length + " volumes");
-      let text = "";
+
       for (let i = 0; i < volNames.length; i++) {
         let name = volNames.queryElementAt(i, Ci.nsISupportsString);
         let volume = volumeService.getVolumeByName(name.data);
         log("Got volume: " + name.data + " at " + volume.mountPoint);
-        text += "wipe " + volume.mountPoint + "\n";
+        commands.push("wipe " + volume.mountPoint);
+      }
+    } else if (reason == "root") {
+      commands.push("root");
     }
 
+    if (commands.length > 0) {
       Cu.import("resource://gre/modules/osfile.jsm");
       let dir = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
       dir.initWithPath("/persist");
@@ -101,6 +106,7 @@ RecoveryService.prototype = {
                           OS.Path.join("/persist", gFactoryResetFile):
                           OS.Path.join("/cache", gFactoryResetFile);
       let encoder = new TextEncoder();
+      let text = commands.join("\n");
       let array = encoder.encode(text);
       let promise = OS.File.writeAtomic(postResetFile, array,
                                         { tmpPath: postResetFile + ".tmp" });

dom/webidl/MozPowerManager.webidl

@@ -9,10 +9,13 @@ interface MozWakeLockListener;
   * The reason for the factory reset.
   * "normal" : simple factory reset.
   * "wipe"   : will also attempt to wipe all user storage areas.
+  * "root"   : simple factory reset that also root the phone to get more
+  *            privileges when using devtools.
   */
 enum FactoryResetReason {
     "normal",
-    "wipe"
+    "wipe",
+    "root"
 };
 
 /**

hal/gonk/GonkHal.cpp

@@ -1777,6 +1777,8 @@ FactoryReset(FactoryResetReason& aReason)
 
   if (aReason == FactoryResetReason::Wipe) {
     recoveryService->FactoryReset("wipe");
+  } else if (aReason == FactoryResetReason::Root) {
+    recoveryService->FactoryReset("root");
   } else {
     recoveryService->FactoryReset("normal");
   }

hal/sandbox/SandboxHal.cpp

@@ -446,6 +446,8 @@ FactoryReset(FactoryResetReason& aReason)
     Hal()->SendFactoryReset(NS_LITERAL_STRING("normal"));
   } else if (aReason == FactoryResetReason::Wipe) {
     Hal()->SendFactoryReset(NS_LITERAL_STRING("wipe"));
+  } else if (aReason == FactoryResetReason::Root) {
+    Hal()->SendFactoryReset(NS_LITERAL_STRING("root"));
   }
 }
 
@@ -870,6 +872,8 @@ public:
       reason = FactoryResetReason::Normal;
     } else if (aReason.EqualsLiteral("wipe")) {
       reason = FactoryResetReason::Wipe;
+    } else if (aReason.EqualsLiteral("root")) {
+      reason = FactoryResetReason::Root;
     } else {
       // Invalid factory reset reason. That should never happen.
       return false;