The Tor Browser / file comparison
comparison: extensions/pref/autoconfig/src/nsJSConfigTriggers.cpp
extensions/pref/autoconfig/src/nsJSConfigTriggers.cpp
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
equal
deleted
inserted
replaced
| -1:000000000000 | 0:eb06992a4fa7 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifdef MOZ_LOGGING | |
| 7 // sorry, this has to be before the pre-compiled header | |
| 8 #define FORCE_PR_LOG /* Allow logging in the release build */ | |
| 9 #endif | |
| 10 #include "jsapi.h" | |
| 11 #include "nsIXPCSecurityManager.h" | |
| 12 #include "nsIXPConnect.h" | |
| 13 #include "nsIJSRuntimeService.h" | |
| 14 #include "nsCOMPtr.h" | |
| 15 #include "nsIServiceManager.h" | |
| 16 #include "nsIComponentManager.h" | |
| 17 #include "nsString.h" | |
| 18 #include "nsIPrefService.h" | |
| 19 #include "nspr.h" | |
| 20 #include "mozilla/Attributes.h" | |
| 21 #include "mozilla/Maybe.h" | |
| 22 #include "nsContentUtils.h" | |
| 23 #include "nsCxPusher.h" | |
| 24 #include "nsIScriptSecurityManager.h" | |
| 25 #include "nsJSPrincipals.h" | |
| 26 #include "jswrapper.h" | |
| 27 | |
| 28 extern PRLogModuleInfo *MCD; | |
| 29 using mozilla::AutoSafeJSContext; | |
| 30 | |
| 31 //***************************************************************************** | |
| 32 | |
| 33 static mozilla::Maybe<JS::PersistentRooted<JSObject *> > autoconfigSb; | |
| 34 | |
| 35 nsresult CentralizedAdminPrefManagerInit() | |
| 36 { | |
| 37 nsresult rv; | |
| 38 | |
| 39 // If the sandbox is already created, no need to create it again. | |
| 40 if (!autoconfigSb.empty()) | |
| 41 return NS_OK; | |
| 42 | |
| 43 // Grab XPConnect. | |
| 44 nsCOMPtr<nsIXPConnect> xpc = do_GetService(nsIXPConnect::GetCID(), &rv); | |
| 45 if (NS_FAILED(rv)) { | |
| 46 return rv; | |
| 47 } | |
| 48 | |
| 49 // Grab the system principal. | |
| 50 nsCOMPtr<nsIPrincipal> principal; | |
| 51 nsContentUtils::GetSecurityManager()->GetSystemPrincipal(getter_AddRefs(principal)); | |
| 52 | |
| 53 | |
| 54 // Create a sandbox. | |
| 55 AutoSafeJSContext cx; | |
| 56 nsCOMPtr<nsIXPConnectJSObjectHolder> sandbox; | |
| 57 rv = xpc->CreateSandbox(cx, principal, getter_AddRefs(sandbox)); | |
| 58 NS_ENSURE_SUCCESS(rv, rv); | |
| 59 | |
| 60 // Unwrap, store and root the sandbox. | |
| 61 NS_ENSURE_STATE(sandbox->GetJSObject()); | |
| 62 autoconfigSb.construct(cx, js::UncheckedUnwrap(sandbox->GetJSObject())); | |
| 63 | |
| 64 return NS_OK; | |
| 65 } | |
| 66 | |
| 67 nsresult CentralizedAdminPrefManagerFinish() | |
| 68 { | |
| 69 if (!autoconfigSb.empty()) { | |
| 70 AutoSafeJSContext cx; | |
| 71 autoconfigSb.destroy(); | |
| 72 JS_MaybeGC(cx); | |
| 73 } | |
| 74 return NS_OK; | |
| 75 } | |
| 76 | |
| 77 nsresult EvaluateAdminConfigScript(const char *js_buffer, size_t length, | |
| 78 const char *filename, bool bGlobalContext, | |
| 79 bool bCallbacks, bool skipFirstLine) | |
| 80 { | |
| 81 nsresult rv = NS_OK; | |
| 82 | |
| 83 if (skipFirstLine) { | |
| 84 /* In order to protect the privacy of the JavaScript preferences file | |
| 85 * from loading by the browser, we make the first line unparseable | |
| 86 * by JavaScript. We must skip that line here before executing | |
| 87 * the JavaScript code. | |
| 88 */ | |
| 89 unsigned int i = 0; | |
| 90 while (i < length) { | |
| 91 char c = js_buffer[i++]; | |
| 92 if (c == '\r') { | |
| 93 if (js_buffer[i] == '\n') | |
| 94 i++; | |
| 95 break; | |
| 96 } | |
| 97 if (c == '\n') | |
| 98 break; | |
| 99 } | |
| 100 | |
| 101 length -= i; | |
| 102 js_buffer += i; | |
| 103 } | |
| 104 | |
| 105 // Grab XPConnect. | |
| 106 nsCOMPtr<nsIXPConnect> xpc = do_GetService(nsIXPConnect::GetCID(), &rv); | |
| 107 if (NS_FAILED(rv)) { | |
| 108 return rv; | |
| 109 } | |
| 110 | |
| 111 AutoSafeJSContext cx; | |
| 112 JSAutoCompartment ac(cx, autoconfigSb.ref()); | |
| 113 | |
| 114 nsAutoCString script(js_buffer, length); | |
| 115 JS::RootedValue v(cx); | |
| 116 rv = xpc->EvalInSandboxObject(NS_ConvertASCIItoUTF16(script), filename, cx, autoconfigSb.ref(), | |
| 117 /* returnStringOnly = */ false, &v); | |
| 118 NS_ENSURE_SUCCESS(rv, rv); | |
| 119 | |
| 120 return NS_OK; | |
| 121 } | |
| 122 |
