The Tor Browser: dom/camera/CameraRecorderProfiles.cpp@97036ab72558 (annotated)

dom/camera/CameraRecorderProfiles.cpp@97036ab72558 (annotated)

dom/camera/CameraRecorderProfiles.cpp

Tue, 06 Jan 2015 21:39:09 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Tue, 06 Jan 2015 21:39:09 +0100
branch: TOR_BUG_9701
changeset 8: 97036ab72558
permissions: -rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

 /* 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 "CameraRecorderProfiles.h"
 #include "jsapi.h"
 #include "CameraCommon.h"
 using namespace mozilla;
 /**
  * Video profile implementation.
  */
 RecorderVideoProfile::RecorderVideoProfile(uint32_t aCameraId, uint32_t aQualityIndex)
   : mCameraId(aCameraId)
   , mQualityIndex(aQualityIndex)
 {
   DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
 }
 RecorderVideoProfile::~RecorderVideoProfile()
 {
   DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
 }
 nsresult
 RecorderVideoProfile::GetJsObject(JSContext* aCx, JSObject** aObject)
 {
   NS_ENSURE_TRUE(aObject, NS_ERROR_INVALID_ARG);
   JS::Rooted<JSObject*> o(aCx, JS_NewObject(aCx, nullptr, JS::NullPtr(), JS::NullPtr()));
   NS_ENSURE_TRUE(o, NS_ERROR_OUT_OF_MEMORY);
   const char* codec = GetCodecName();
   NS_ENSURE_TRUE(codec, NS_ERROR_FAILURE);
   JS::Rooted<JSString*> s(aCx, JS_NewStringCopyZ(aCx, codec));
   JS::Rooted<JS::Value> v(aCx, STRING_TO_JSVAL(s));
   if (!JS_SetProperty(aCx, o, "codec", v)) {
     return NS_ERROR_FAILURE;
   }
   if (mBitrate != -1) {
     v = INT_TO_JSVAL(mBitrate);
     if (!JS_SetProperty(aCx, o, "bitrate", v)) {
       return NS_ERROR_FAILURE;
     }
   }
   if (mFramerate != -1) {
     v = INT_TO_JSVAL(mFramerate);
     if (!JS_SetProperty(aCx, o, "framerate", v)) {
       return NS_ERROR_FAILURE;
     }
   }
   if (mWidth != -1) {
     v = INT_TO_JSVAL(mWidth);
     if (!JS_SetProperty(aCx, o, "width", v)) {
       return NS_ERROR_FAILURE;
     }
   }
   if (mHeight != -1) {
     v = INT_TO_JSVAL(mHeight);
     if (!JS_SetProperty(aCx, o, "height", v)) {
       return NS_ERROR_FAILURE;
     }
   }
   *aObject = o;
   return NS_OK;
 }
 /**
  * Audio profile implementation.
  */
 RecorderAudioProfile::RecorderAudioProfile(uint32_t aCameraId, uint32_t aQualityIndex)
   : mCameraId(aCameraId)
   , mQualityIndex(aQualityIndex)
 {
   DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
 }
 RecorderAudioProfile::~RecorderAudioProfile()
 {
   DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
 }
 nsresult
 RecorderAudioProfile::GetJsObject(JSContext* aCx, JSObject** aObject)
 {
   NS_ENSURE_TRUE(aObject, NS_ERROR_INVALID_ARG);
   JS::Rooted<JSObject*> o(aCx, JS_NewObject(aCx, nullptr, JS::NullPtr(), JS::NullPtr()));
   NS_ENSURE_TRUE(o, NS_ERROR_OUT_OF_MEMORY);
   const char* codec = GetCodecName();
   NS_ENSURE_TRUE(codec, NS_ERROR_FAILURE);
   JS::Rooted<JSString*> s(aCx, JS_NewStringCopyZ(aCx, codec));
   JS::Rooted<JS::Value> v(aCx, STRING_TO_JSVAL(s));
   if (!JS_SetProperty(aCx, o, "codec", v)) {
     return NS_ERROR_FAILURE;
   }
   if (mBitrate != -1) {
     v = INT_TO_JSVAL(mBitrate);
     if (!JS_SetProperty(aCx, o, "bitrate", v)) {
       return NS_ERROR_FAILURE;
     }
   }
   if (mSamplerate != -1) {
     v = INT_TO_JSVAL(mSamplerate);
     if (!JS_SetProperty(aCx, o, "samplerate", v)) {
       return NS_ERROR_FAILURE;
     }
   }
   if (mChannels != -1) {
     v = INT_TO_JSVAL(mChannels);
     if (!JS_SetProperty(aCx, o, "channels", v)) {
       return NS_ERROR_FAILURE;
     }
   }
   *aObject = o;
   return NS_OK;
 }
 /**
  * Recorder Profile
  */
 RecorderProfile::RecorderProfile(uint32_t aCameraId, uint32_t aQualityIndex)
   : mCameraId(aCameraId)
   , mQualityIndex(aQualityIndex)
   , mName(nullptr)
 {
   DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
 }
 RecorderProfile::~RecorderProfile()
 {
   DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
 }
 /**
  * Recorder profile manager implementation.
  */
 RecorderProfileManager::RecorderProfileManager(uint32_t aCameraId)
   : mCameraId(aCameraId)
 {
   DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
 }
 RecorderProfileManager::~RecorderProfileManager()
 {
   DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
 }
 nsresult
 RecorderProfileManager::GetJsObject(JSContext* aCx, JSObject** aObject) const
 {
   NS_ENSURE_TRUE(aObject, NS_ERROR_INVALID_ARG);
   JS::Rooted<JSObject*> o(aCx, JS_NewObject(aCx, nullptr, JS::NullPtr(), JS::NullPtr()));
   if (!o) {
     return NS_ERROR_OUT_OF_MEMORY;
   }
   for (uint32_t q = 0; q < GetMaxQualityIndex(); ++q) {
     if (!IsSupported(q)) {
       continue;
     }
     nsRefPtr<RecorderProfile> profile = Get(q);
     if (!profile) {
       return NS_ERROR_OUT_OF_MEMORY;
     }
     const char* profileName = profile->GetName();
     if (!profileName) {
       // don't allow anonymous recorder profiles
       continue;
     }
     JS::Rooted<JSObject*> p(aCx);
     nsresult rv = profile->GetJsObject(aCx, p.address());
     NS_ENSURE_SUCCESS(rv, rv);
     JS::Rooted<JS::Value> v(aCx, OBJECT_TO_JSVAL(p));
     if (!JS_SetProperty(aCx, o, profileName, v)) {
       return NS_ERROR_FAILURE;
     }
   }
   *aObject = o;
   return NS_OK;
 }

The Tor Browser / annotate

dom/camera/CameraRecorderProfiles.cpp@97036ab72558 (annotated)

dom/camera/CameraRecorderProfiles.cpp