extensions/pref/autoconfig/src/nsJSConfigTriggers.cpp@b8a032363ba2 (annotated)
extensions/pref/autoconfig/src/nsJSConfigTriggers.cpp
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifdef MOZ_LOGGING |
| michael@0 | 7 | // sorry, this has to be before the pre-compiled header |
| michael@0 | 8 | #define FORCE_PR_LOG /* Allow logging in the release build */ |
| michael@0 | 9 | #endif |
| michael@0 | 10 | #include "jsapi.h" |
| michael@0 | 11 | #include "nsIXPCSecurityManager.h" |
| michael@0 | 12 | #include "nsIXPConnect.h" |
| michael@0 | 13 | #include "nsIJSRuntimeService.h" |
| michael@0 | 14 | #include "nsCOMPtr.h" |
| michael@0 | 15 | #include "nsIServiceManager.h" |
| michael@0 | 16 | #include "nsIComponentManager.h" |
| michael@0 | 17 | #include "nsString.h" |
| michael@0 | 18 | #include "nsIPrefService.h" |
| michael@0 | 19 | #include "nspr.h" |
| michael@0 | 20 | #include "mozilla/Attributes.h" |
| michael@0 | 21 | #include "mozilla/Maybe.h" |
| michael@0 | 22 | #include "nsContentUtils.h" |
| michael@0 | 23 | #include "nsCxPusher.h" |
| michael@0 | 24 | #include "nsIScriptSecurityManager.h" |
| michael@0 | 25 | #include "nsJSPrincipals.h" |
| michael@0 | 26 | #include "jswrapper.h" |
| michael@0 | 27 | |
| michael@0 | 28 | extern PRLogModuleInfo *MCD; |
| michael@0 | 29 | using mozilla::AutoSafeJSContext; |
| michael@0 | 30 | |
| michael@0 | 31 | //***************************************************************************** |
| michael@0 | 32 | |
| michael@0 | 33 | static mozilla::Maybe<JS::PersistentRooted<JSObject *> > autoconfigSb; |
| michael@0 | 34 | |
| michael@0 | 35 | nsresult CentralizedAdminPrefManagerInit() |
| michael@0 | 36 | { |
| michael@0 | 37 | nsresult rv; |
| michael@0 | 38 | |
| michael@0 | 39 | // If the sandbox is already created, no need to create it again. |
| michael@0 | 40 | if (!autoconfigSb.empty()) |
| michael@0 | 41 | return NS_OK; |
| michael@0 | 42 | |
| michael@0 | 43 | // Grab XPConnect. |
| michael@0 | 44 | nsCOMPtr<nsIXPConnect> xpc = do_GetService(nsIXPConnect::GetCID(), &rv); |
| michael@0 | 45 | if (NS_FAILED(rv)) { |
| michael@0 | 46 | return rv; |
| michael@0 | 47 | } |
| michael@0 | 48 | |
| michael@0 | 49 | // Grab the system principal. |
| michael@0 | 50 | nsCOMPtr<nsIPrincipal> principal; |
| michael@0 | 51 | nsContentUtils::GetSecurityManager()->GetSystemPrincipal(getter_AddRefs(principal)); |
| michael@0 | 52 | |
| michael@0 | 53 | |
| michael@0 | 54 | // Create a sandbox. |
| michael@0 | 55 | AutoSafeJSContext cx; |
| michael@0 | 56 | nsCOMPtr<nsIXPConnectJSObjectHolder> sandbox; |
| michael@0 | 57 | rv = xpc->CreateSandbox(cx, principal, getter_AddRefs(sandbox)); |
| michael@0 | 58 | NS_ENSURE_SUCCESS(rv, rv); |
| michael@0 | 59 | |
| michael@0 | 60 | // Unwrap, store and root the sandbox. |
| michael@0 | 61 | NS_ENSURE_STATE(sandbox->GetJSObject()); |
| michael@0 | 62 | autoconfigSb.construct(cx, js::UncheckedUnwrap(sandbox->GetJSObject())); |
| michael@0 | 63 | |
| michael@0 | 64 | return NS_OK; |
| michael@0 | 65 | } |
| michael@0 | 66 | |
| michael@0 | 67 | nsresult CentralizedAdminPrefManagerFinish() |
| michael@0 | 68 | { |
| michael@0 | 69 | if (!autoconfigSb.empty()) { |
| michael@0 | 70 | AutoSafeJSContext cx; |
| michael@0 | 71 | autoconfigSb.destroy(); |
| michael@0 | 72 | JS_MaybeGC(cx); |
| michael@0 | 73 | } |
| michael@0 | 74 | return NS_OK; |
| michael@0 | 75 | } |
| michael@0 | 76 | |
| michael@0 | 77 | nsresult EvaluateAdminConfigScript(const char *js_buffer, size_t length, |
| michael@0 | 78 | const char *filename, bool bGlobalContext, |
| michael@0 | 79 | bool bCallbacks, bool skipFirstLine) |
| michael@0 | 80 | { |
| michael@0 | 81 | nsresult rv = NS_OK; |
| michael@0 | 82 | |
| michael@0 | 83 | if (skipFirstLine) { |
| michael@0 | 84 | /* In order to protect the privacy of the JavaScript preferences file |
| michael@0 | 85 | * from loading by the browser, we make the first line unparseable |
| michael@0 | 86 | * by JavaScript. We must skip that line here before executing |
| michael@0 | 87 | * the JavaScript code. |
| michael@0 | 88 | */ |
| michael@0 | 89 | unsigned int i = 0; |
| michael@0 | 90 | while (i < length) { |
| michael@0 | 91 | char c = js_buffer[i++]; |
| michael@0 | 92 | if (c == '\r') { |
| michael@0 | 93 | if (js_buffer[i] == '\n') |
| michael@0 | 94 | i++; |
| michael@0 | 95 | break; |
| michael@0 | 96 | } |
| michael@0 | 97 | if (c == '\n') |
| michael@0 | 98 | break; |
| michael@0 | 99 | } |
| michael@0 | 100 | |
| michael@0 | 101 | length -= i; |
| michael@0 | 102 | js_buffer += i; |
| michael@0 | 103 | } |
| michael@0 | 104 | |
| michael@0 | 105 | // Grab XPConnect. |
| michael@0 | 106 | nsCOMPtr<nsIXPConnect> xpc = do_GetService(nsIXPConnect::GetCID(), &rv); |
| michael@0 | 107 | if (NS_FAILED(rv)) { |
| michael@0 | 108 | return rv; |
| michael@0 | 109 | } |
| michael@0 | 110 | |
| michael@0 | 111 | AutoSafeJSContext cx; |
| michael@0 | 112 | JSAutoCompartment ac(cx, autoconfigSb.ref()); |
| michael@0 | 113 | |
| michael@0 | 114 | nsAutoCString script(js_buffer, length); |
| michael@0 | 115 | JS::RootedValue v(cx); |
| michael@0 | 116 | rv = xpc->EvalInSandboxObject(NS_ConvertASCIItoUTF16(script), filename, cx, autoconfigSb.ref(), |
| michael@0 | 117 | /* returnStringOnly = */ false, &v); |
| michael@0 | 118 | NS_ENSURE_SUCCESS(rv, rv); |
| michael@0 | 119 | |
| michael@0 | 120 | return NS_OK; |
| michael@0 | 121 | } |
| michael@0 | 122 |
