1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/plugins/base/nsPluginHost.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,3770 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/* nsPluginHost.cpp - top-level plugin management code */
1.10 +
1.11 +#include "nscore.h"
1.12 +#include "nsPluginHost.h"
1.13 +
1.14 +#include <cstdlib>
1.15 +#include <stdio.h>
1.16 +#include "prio.h"
1.17 +#include "prmem.h"
1.18 +#include "nsNPAPIPlugin.h"
1.19 +#include "nsNPAPIPluginStreamListener.h"
1.20 +#include "nsNPAPIPluginInstance.h"
1.21 +#include "nsPluginInstanceOwner.h"
1.22 +#include "nsObjectLoadingContent.h"
1.23 +#include "nsIHTTPHeaderListener.h"
1.24 +#include "nsIHttpHeaderVisitor.h"
1.25 +#include "nsIObserverService.h"
1.26 +#include "nsIHttpProtocolHandler.h"
1.27 +#include "nsIHttpChannel.h"
1.28 +#include "nsIUploadChannel.h"
1.29 +#include "nsIByteRangeRequest.h"
1.30 +#include "nsIStreamListener.h"
1.31 +#include "nsIInputStream.h"
1.32 +#include "nsIOutputStream.h"
1.33 +#include "nsIURL.h"
1.34 +#include "nsTArray.h"
1.35 +#include "nsReadableUtils.h"
1.36 +#include "nsProtocolProxyService.h"
1.37 +#include "nsIStreamConverterService.h"
1.38 +#include "nsIFile.h"
1.39 +#if defined(XP_MACOSX)
1.40 +#include "nsILocalFileMac.h"
1.41 +#endif
1.42 +#include "nsISeekableStream.h"
1.43 +#include "nsNetUtil.h"
1.44 +#include "nsIProgressEventSink.h"
1.45 +#include "nsIDocument.h"
1.46 +#include "nsPluginLogging.h"
1.47 +#include "nsIScriptChannel.h"
1.48 +#include "nsIBlocklistService.h"
1.49 +#include "nsVersionComparator.h"
1.50 +#include "nsIObjectLoadingContent.h"
1.51 +#include "nsIWritablePropertyBag2.h"
1.52 +#include "nsICategoryManager.h"
1.53 +#include "nsPluginStreamListenerPeer.h"
1.54 +#include "mozilla/Preferences.h"
1.55 +
1.56 +#include "nsEnumeratorUtils.h"
1.57 +#include "nsXPCOM.h"
1.58 +#include "nsXPCOMCID.h"
1.59 +#include "nsISupportsPrimitives.h"
1.60 +
1.61 +#include "nsXULAppAPI.h"
1.62 +#include "nsIXULRuntime.h"
1.63 +
1.64 +// for the dialog
1.65 +#include "nsIWindowWatcher.h"
1.66 +#include "nsIDOMElement.h"
1.67 +#include "nsIDOMWindow.h"
1.68 +
1.69 +#include "nsNetCID.h"
1.70 +#include "prprf.h"
1.71 +#include "nsThreadUtils.h"
1.72 +#include "nsIInputStreamTee.h"
1.73 +
1.74 +#include "nsDirectoryServiceDefs.h"
1.75 +#include "nsAppDirectoryServiceDefs.h"
1.76 +#include "nsPluginDirServiceProvider.h"
1.77 +
1.78 +#include "nsUnicharUtils.h"
1.79 +#include "nsPluginManifestLineReader.h"
1.80 +
1.81 +#include "nsIWeakReferenceUtils.h"
1.82 +#include "nsIPresShell.h"
1.83 +#include "nsPluginNativeWindow.h"
1.84 +#include "nsIScriptSecurityManager.h"
1.85 +#include "nsIContentPolicy.h"
1.86 +#include "nsContentPolicyUtils.h"
1.87 +#include "mozilla/TimeStamp.h"
1.88 +#include "mozilla/Telemetry.h"
1.89 +#include "nsIImageLoadingContent.h"
1.90 +#include "mozilla/Preferences.h"
1.91 +#include "nsVersionComparator.h"
1.92 +
1.93 +#if defined(XP_WIN)
1.94 +#include "nsIWindowMediator.h"
1.95 +#include "nsIBaseWindow.h"
1.96 +#include "windows.h"
1.97 +#include "winbase.h"
1.98 +#endif
1.99 +
1.100 +#ifdef ANDROID
1.101 +#include <android/log.h>
1.102 +#define LOG(args...) __android_log_print(ANDROID_LOG_INFO, "GeckoPlugins" , ## args)
1.103 +#endif
1.104 +
1.105 +#if MOZ_CRASHREPORTER
1.106 +#include "nsExceptionHandler.h"
1.107 +#endif
1.108 +
1.109 +using namespace mozilla;
1.110 +using mozilla::TimeStamp;
1.111 +
1.112 +// Null out a strong ref to a linked list iteratively to avoid
1.113 +// exhausting the stack (bug 486349).
1.114 +#define NS_ITERATIVE_UNREF_LIST(type_, list_, mNext_) \
1.115 + { \
1.116 + while (list_) { \
1.117 + type_ temp = list_->mNext_; \
1.118 + list_->mNext_ = nullptr; \
1.119 + list_ = temp; \
1.120 + } \
1.121 + }
1.122 +
1.123 +// this is the name of the directory which will be created
1.124 +// to cache temporary files.
1.125 +#define kPluginTmpDirName NS_LITERAL_CSTRING("plugtmp")
1.126 +
1.127 +static const char *kPrefWhitelist = "plugin.allowed_types";
1.128 +static const char *kPrefDisableFullPage = "plugin.disable_full_page_plugin_for_types";
1.129 +static const char *kPrefJavaMIME = "plugin.java.mime";
1.130 +
1.131 +// Version of cached plugin info
1.132 +// 0.01 first implementation
1.133 +// 0.02 added caching of CanUnload to fix bug 105935
1.134 +// 0.03 changed name, description and mime desc from string to bytes, bug 108246
1.135 +// 0.04 added new mime entry point on Mac, bug 113464
1.136 +// 0.05 added new entry point check for the default plugin, bug 132430
1.137 +// 0.06 strip off suffixes in mime description strings, bug 53895
1.138 +// 0.07 changed nsIRegistry to flat file support for caching plugins info
1.139 +// 0.08 mime entry point on MachO, bug 137535
1.140 +// 0.09 the file encoding is changed to UTF-8, bug 420285
1.141 +// 0.10 added plugin versions on appropriate platforms, bug 427743
1.142 +// 0.11 file name and full path fields now store expected values on all platforms, bug 488181
1.143 +// 0.12 force refresh due to quicktime pdf claim fix, bug 611197
1.144 +// 0.13 add architecture and list of invalid plugins, bug 616271
1.145 +// 0.14 force refresh due to locale comparison fix, bug 611296
1.146 +// 0.15 force refresh due to bug in reading Java plist MIME data, bug 638171
1.147 +// 0.16 version bump to avoid importing the plugin flags in newer versions
1.148 +// 0.17 added flag on whether plugin is loaded from an XPI
1.149 +// The current plugin registry version (and the maximum version we know how to read)
1.150 +static const char *kPluginRegistryVersion = "0.17";
1.151 +// The minimum registry version we know how to read
1.152 +static const char *kMinimumRegistryVersion = "0.9";
1.153 +
1.154 +static const char kDirectoryServiceContractID[] = "@mozilla.org/file/directory_service;1";
1.155 +
1.156 +#define kPluginRegistryFilename NS_LITERAL_CSTRING("pluginreg.dat")
1.157 +
1.158 +#ifdef PLUGIN_LOGGING
1.159 +PRLogModuleInfo* nsPluginLogging::gNPNLog = nullptr;
1.160 +PRLogModuleInfo* nsPluginLogging::gNPPLog = nullptr;
1.161 +PRLogModuleInfo* nsPluginLogging::gPluginLog = nullptr;
1.162 +#endif
1.163 +
1.164 +// #defines for plugin cache and prefs
1.165 +#define NS_PREF_MAX_NUM_CACHED_INSTANCES "browser.plugins.max_num_cached_plugins"
1.166 +// Raise this from '10' to '50' to work around a bug in Apple's current Java
1.167 +// plugins on OS X Lion and SnowLeopard. See bug 705931.
1.168 +#define DEFAULT_NUMBER_OF_STOPPED_INSTANCES 50
1.169 +
1.170 +nsIFile *nsPluginHost::sPluginTempDir;
1.171 +nsPluginHost *nsPluginHost::sInst;
1.172 +
1.173 +NS_IMPL_ISUPPORTS0(nsInvalidPluginTag)
1.174 +
1.175 +nsInvalidPluginTag::nsInvalidPluginTag(const char* aFullPath, int64_t aLastModifiedTime)
1.176 +: mFullPath(aFullPath),
1.177 + mLastModifiedTime(aLastModifiedTime),
1.178 + mSeen(false)
1.179 +{}
1.180 +
1.181 +nsInvalidPluginTag::~nsInvalidPluginTag()
1.182 +{}
1.183 +
1.184 +// Helper to check for a MIME in a comma-delimited preference
1.185 +static bool
1.186 +IsTypeInList(nsCString &aMimeType, nsCString aTypeList)
1.187 +{
1.188 + nsAutoCString searchStr;
1.189 + searchStr.Assign(',');
1.190 + searchStr.Append(aTypeList);
1.191 + searchStr.Append(',');
1.192 +
1.193 + nsACString::const_iterator start, end;
1.194 +
1.195 + searchStr.BeginReading(start);
1.196 + searchStr.EndReading(end);
1.197 +
1.198 + nsAutoCString commaSeparated;
1.199 + commaSeparated.Assign(',');
1.200 + commaSeparated += aMimeType;
1.201 + commaSeparated.Append(',');
1.202 +
1.203 + return FindInReadable(commaSeparated, start, end);
1.204 +}
1.205 +
1.206 +// flat file reg funcs
1.207 +static
1.208 +bool ReadSectionHeader(nsPluginManifestLineReader& reader, const char *token)
1.209 +{
1.210 + do {
1.211 + if (*reader.LinePtr() == '[') {
1.212 + char* p = reader.LinePtr() + (reader.LineLength() - 1);
1.213 + if (*p != ']')
1.214 + break;
1.215 + *p = 0;
1.216 +
1.217 + char* values[1];
1.218 + if (1 != reader.ParseLine(values, 1))
1.219 + break;
1.220 + // ignore the leading '['
1.221 + if (PL_strcmp(values[0]+1, token)) {
1.222 + break; // it's wrong token
1.223 + }
1.224 + return true;
1.225 + }
1.226 + } while (reader.NextLine());
1.227 + return false;
1.228 +}
1.229 +
1.230 +static bool UnloadPluginsASAP()
1.231 +{
1.232 + return Preferences::GetBool("dom.ipc.plugins.unloadASAP", false);
1.233 +}
1.234 +
1.235 +nsPluginHost::nsPluginHost()
1.236 + // No need to initialize members to nullptr, false etc because this class
1.237 + // has a zeroing operator new.
1.238 +{
1.239 + // check to see if pref is set at startup to let plugins take over in
1.240 + // full page mode for certain image mime types that we handle internally
1.241 + mOverrideInternalTypes =
1.242 + Preferences::GetBool("plugin.override_internal_types", false);
1.243 +
1.244 + mPluginsDisabled = Preferences::GetBool("plugin.disable", false);
1.245 + mPluginsClickToPlay = Preferences::GetBool("plugins.click_to_play", false);
1.246 +
1.247 + Preferences::AddStrongObserver(this, "plugin.disable");
1.248 + Preferences::AddStrongObserver(this, "plugins.click_to_play");
1.249 +
1.250 + nsCOMPtr<nsIObserverService> obsService =
1.251 + mozilla::services::GetObserverService();
1.252 + if (obsService) {
1.253 + obsService->AddObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID, false);
1.254 + obsService->AddObserver(this, "blocklist-updated", false);
1.255 +#ifdef MOZ_WIDGET_ANDROID
1.256 + obsService->AddObserver(this, "application-foreground", false);
1.257 + obsService->AddObserver(this, "application-background", false);
1.258 +#endif
1.259 + }
1.260 +
1.261 +#ifdef PLUGIN_LOGGING
1.262 + nsPluginLogging::gNPNLog = PR_NewLogModule(NPN_LOG_NAME);
1.263 + nsPluginLogging::gNPPLog = PR_NewLogModule(NPP_LOG_NAME);
1.264 + nsPluginLogging::gPluginLog = PR_NewLogModule(PLUGIN_LOG_NAME);
1.265 +
1.266 + PR_LOG(nsPluginLogging::gNPNLog, PLUGIN_LOG_ALWAYS,("NPN Logging Active!\n"));
1.267 + PR_LOG(nsPluginLogging::gPluginLog, PLUGIN_LOG_ALWAYS,("General Plugin Logging Active! (nsPluginHost::ctor)\n"));
1.268 + PR_LOG(nsPluginLogging::gNPPLog, PLUGIN_LOG_ALWAYS,("NPP Logging Active!\n"));
1.269 +
1.270 + PLUGIN_LOG(PLUGIN_LOG_ALWAYS,("nsPluginHost::ctor\n"));
1.271 + PR_LogFlush();
1.272 +#endif
1.273 +}
1.274 +
1.275 +nsPluginHost::~nsPluginHost()
1.276 +{
1.277 + PLUGIN_LOG(PLUGIN_LOG_ALWAYS,("nsPluginHost::dtor\n"));
1.278 +
1.279 + UnloadPlugins();
1.280 + sInst = nullptr;
1.281 +}
1.282 +
1.283 +NS_IMPL_ISUPPORTS(nsPluginHost,
1.284 + nsIPluginHost,
1.285 + nsIObserver,
1.286 + nsITimerCallback,
1.287 + nsISupportsWeakReference)
1.288 +
1.289 +already_AddRefed<nsPluginHost>
1.290 +nsPluginHost::GetInst()
1.291 +{
1.292 + if (!sInst) {
1.293 + sInst = new nsPluginHost();
1.294 + if (!sInst)
1.295 + return nullptr;
1.296 + NS_ADDREF(sInst);
1.297 + }
1.298 +
1.299 + nsRefPtr<nsPluginHost> inst = sInst;
1.300 + return inst.forget();
1.301 +}
1.302 +
1.303 +bool nsPluginHost::IsRunningPlugin(nsPluginTag * aPluginTag)
1.304 +{
1.305 + if (!aPluginTag || !aPluginTag->mPlugin) {
1.306 + return false;
1.307 + }
1.308 +
1.309 + for (uint32_t i = 0; i < mInstances.Length(); i++) {
1.310 + nsNPAPIPluginInstance *instance = mInstances[i].get();
1.311 + if (instance &&
1.312 + instance->GetPlugin() == aPluginTag->mPlugin &&
1.313 + instance->IsRunning()) {
1.314 + return true;
1.315 + }
1.316 + }
1.317 +
1.318 + return false;
1.319 +}
1.320 +
1.321 +nsresult nsPluginHost::ReloadPlugins()
1.322 +{
1.323 + PLUGIN_LOG(PLUGIN_LOG_NORMAL,
1.324 + ("nsPluginHost::ReloadPlugins Begin\n"));
1.325 +
1.326 + nsresult rv = NS_OK;
1.327 +
1.328 + // this will create the initial plugin list out of cache
1.329 + // if it was not created yet
1.330 + if (!mPluginsLoaded)
1.331 + return LoadPlugins();
1.332 +
1.333 + // we are re-scanning plugins. New plugins may have been added, also some
1.334 + // plugins may have been removed, so we should probably shut everything down
1.335 + // but don't touch running (active and not stopped) plugins
1.336 +
1.337 + // check if plugins changed, no need to do anything else
1.338 + // if no changes to plugins have been made
1.339 + // false instructs not to touch the plugin list, just to
1.340 + // look for possible changes
1.341 + bool pluginschanged = true;
1.342 + FindPlugins(false, &pluginschanged);
1.343 +
1.344 + // if no changed detected, return an appropriate error code
1.345 + if (!pluginschanged)
1.346 + return NS_ERROR_PLUGINS_PLUGINSNOTCHANGED;
1.347 +
1.348 + // shutdown plugins and kill the list if there are no running plugins
1.349 + nsRefPtr<nsPluginTag> prev;
1.350 + nsRefPtr<nsPluginTag> next;
1.351 +
1.352 + for (nsRefPtr<nsPluginTag> p = mPlugins; p != nullptr;) {
1.353 + next = p->mNext;
1.354 +
1.355 + // only remove our plugin from the list if it's not running.
1.356 + if (!IsRunningPlugin(p)) {
1.357 + if (p == mPlugins)
1.358 + mPlugins = next;
1.359 + else
1.360 + prev->mNext = next;
1.361 +
1.362 + p->mNext = nullptr;
1.363 +
1.364 + // attempt to unload plugins whenever they are removed from the list
1.365 + p->TryUnloadPlugin(false);
1.366 +
1.367 + p = next;
1.368 + continue;
1.369 + }
1.370 +
1.371 + prev = p;
1.372 + p = next;
1.373 + }
1.374 +
1.375 + // set flags
1.376 + mPluginsLoaded = false;
1.377 +
1.378 + // load them again
1.379 + rv = LoadPlugins();
1.380 +
1.381 + PLUGIN_LOG(PLUGIN_LOG_NORMAL,
1.382 + ("nsPluginHost::ReloadPlugins End\n"));
1.383 +
1.384 + return rv;
1.385 +}
1.386 +
1.387 +#define NS_RETURN_UASTRING_SIZE 128
1.388 +
1.389 +nsresult nsPluginHost::UserAgent(const char **retstring)
1.390 +{
1.391 + static char resultString[NS_RETURN_UASTRING_SIZE];
1.392 + nsresult res;
1.393 +
1.394 + nsCOMPtr<nsIHttpProtocolHandler> http = do_GetService(NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "http", &res);
1.395 + if (NS_FAILED(res))
1.396 + return res;
1.397 +
1.398 + nsAutoCString uaString;
1.399 + res = http->GetUserAgent(uaString);
1.400 +
1.401 + if (NS_SUCCEEDED(res)) {
1.402 + if (NS_RETURN_UASTRING_SIZE > uaString.Length()) {
1.403 + PL_strcpy(resultString, uaString.get());
1.404 + } else {
1.405 + // Copy as much of UA string as we can (terminate at right-most space).
1.406 + PL_strncpy(resultString, uaString.get(), NS_RETURN_UASTRING_SIZE);
1.407 + for (int i = NS_RETURN_UASTRING_SIZE - 1; i >= 0; i--) {
1.408 + if (i == 0) {
1.409 + resultString[NS_RETURN_UASTRING_SIZE - 1] = '\0';
1.410 + }
1.411 + else if (resultString[i] == ' ') {
1.412 + resultString[i] = '\0';
1.413 + break;
1.414 + }
1.415 + }
1.416 + }
1.417 + *retstring = resultString;
1.418 + }
1.419 + else {
1.420 + *retstring = nullptr;
1.421 + }
1.422 +
1.423 + PLUGIN_LOG(PLUGIN_LOG_NORMAL, ("nsPluginHost::UserAgent return=%s\n", *retstring));
1.424 +
1.425 + return res;
1.426 +}
1.427 +
1.428 +nsresult nsPluginHost::GetURL(nsISupports* pluginInst,
1.429 + const char* url,
1.430 + const char* target,
1.431 + nsNPAPIPluginStreamListener* streamListener,
1.432 + const char* altHost,
1.433 + const char* referrer,
1.434 + bool forceJSEnabled)
1.435 +{
1.436 + return GetURLWithHeaders(static_cast<nsNPAPIPluginInstance*>(pluginInst),
1.437 + url, target, streamListener, altHost, referrer,
1.438 + forceJSEnabled, 0, nullptr);
1.439 +}
1.440 +
1.441 +nsresult nsPluginHost::GetURLWithHeaders(nsNPAPIPluginInstance* pluginInst,
1.442 + const char* url,
1.443 + const char* target,
1.444 + nsNPAPIPluginStreamListener* streamListener,
1.445 + const char* altHost,
1.446 + const char* referrer,
1.447 + bool forceJSEnabled,
1.448 + uint32_t getHeadersLength,
1.449 + const char* getHeaders)
1.450 +{
1.451 + // we can only send a stream back to the plugin (as specified by a
1.452 + // null target) if we also have a nsNPAPIPluginStreamListener to talk to
1.453 + if (!target && !streamListener)
1.454 + return NS_ERROR_ILLEGAL_VALUE;
1.455 +
1.456 + nsresult rv = DoURLLoadSecurityCheck(pluginInst, url);
1.457 + if (NS_FAILED(rv))
1.458 + return rv;
1.459 +
1.460 + if (target) {
1.461 + nsRefPtr<nsPluginInstanceOwner> owner = pluginInst->GetOwner();
1.462 + if (owner) {
1.463 + if ((0 == PL_strcmp(target, "newwindow")) ||
1.464 + (0 == PL_strcmp(target, "_new")))
1.465 + target = "_blank";
1.466 + else if (0 == PL_strcmp(target, "_current"))
1.467 + target = "_self";
1.468 +
1.469 + rv = owner->GetURL(url, target, nullptr, nullptr, 0);
1.470 + }
1.471 + }
1.472 +
1.473 + if (streamListener)
1.474 + rv = NewPluginURLStream(NS_ConvertUTF8toUTF16(url), pluginInst,
1.475 + streamListener, nullptr,
1.476 + getHeaders, getHeadersLength);
1.477 +
1.478 + return rv;
1.479 +}
1.480 +
1.481 +nsresult nsPluginHost::PostURL(nsISupports* pluginInst,
1.482 + const char* url,
1.483 + uint32_t postDataLen,
1.484 + const char* postData,
1.485 + bool isFile,
1.486 + const char* target,
1.487 + nsNPAPIPluginStreamListener* streamListener,
1.488 + const char* altHost,
1.489 + const char* referrer,
1.490 + bool forceJSEnabled,
1.491 + uint32_t postHeadersLength,
1.492 + const char* postHeaders)
1.493 +{
1.494 + nsresult rv;
1.495 +
1.496 + // we can only send a stream back to the plugin (as specified
1.497 + // by a null target) if we also have a nsNPAPIPluginStreamListener
1.498 + // to talk to also
1.499 + if (!target && !streamListener)
1.500 + return NS_ERROR_ILLEGAL_VALUE;
1.501 +
1.502 + nsNPAPIPluginInstance* instance = static_cast<nsNPAPIPluginInstance*>(pluginInst);
1.503 +
1.504 + rv = DoURLLoadSecurityCheck(instance, url);
1.505 + if (NS_FAILED(rv))
1.506 + return rv;
1.507 +
1.508 + nsCOMPtr<nsIInputStream> postStream;
1.509 + if (isFile) {
1.510 + nsCOMPtr<nsIFile> file;
1.511 + rv = CreateTempFileToPost(postData, getter_AddRefs(file));
1.512 + if (NS_FAILED(rv))
1.513 + return rv;
1.514 +
1.515 + nsCOMPtr<nsIInputStream> fileStream;
1.516 + rv = NS_NewLocalFileInputStream(getter_AddRefs(fileStream),
1.517 + file,
1.518 + PR_RDONLY,
1.519 + 0600,
1.520 + nsIFileInputStream::DELETE_ON_CLOSE |
1.521 + nsIFileInputStream::CLOSE_ON_EOF);
1.522 + if (NS_FAILED(rv))
1.523 + return rv;
1.524 +
1.525 + rv = NS_NewBufferedInputStream(getter_AddRefs(postStream), fileStream, 8192);
1.526 + if (NS_FAILED(rv))
1.527 + return rv;
1.528 + } else {
1.529 + char *dataToPost;
1.530 + uint32_t newDataToPostLen;
1.531 + ParsePostBufferToFixHeaders(postData, postDataLen, &dataToPost, &newDataToPostLen);
1.532 + if (!dataToPost)
1.533 + return NS_ERROR_UNEXPECTED;
1.534 +
1.535 + nsCOMPtr<nsIStringInputStream> sis = do_CreateInstance("@mozilla.org/io/string-input-stream;1", &rv);
1.536 + if (!sis) {
1.537 + NS_Free(dataToPost);
1.538 + return rv;
1.539 + }
1.540 +
1.541 + // data allocated by ParsePostBufferToFixHeaders() is managed and
1.542 + // freed by the string stream.
1.543 + postDataLen = newDataToPostLen;
1.544 + sis->AdoptData(dataToPost, postDataLen);
1.545 + postStream = sis;
1.546 + }
1.547 +
1.548 + if (target) {
1.549 + nsRefPtr<nsPluginInstanceOwner> owner = instance->GetOwner();
1.550 + if (owner) {
1.551 + if ((0 == PL_strcmp(target, "newwindow")) ||
1.552 + (0 == PL_strcmp(target, "_new"))) {
1.553 + target = "_blank";
1.554 + } else if (0 == PL_strcmp(target, "_current")) {
1.555 + target = "_self";
1.556 + }
1.557 + rv = owner->GetURL(url, target, postStream,
1.558 + (void*)postHeaders, postHeadersLength);
1.559 + }
1.560 + }
1.561 +
1.562 + // if we don't have a target, just create a stream. This does
1.563 + // NS_OpenURI()!
1.564 + if (streamListener)
1.565 + rv = NewPluginURLStream(NS_ConvertUTF8toUTF16(url), instance,
1.566 + streamListener,
1.567 + postStream, postHeaders, postHeadersLength);
1.568 +
1.569 + return rv;
1.570 +}
1.571 +
1.572 +/* This method queries the prefs for proxy information.
1.573 + * It has been tested and is known to work in the following three cases
1.574 + * when no proxy host or port is specified
1.575 + * when only the proxy host is specified
1.576 + * when only the proxy port is specified
1.577 + * This method conforms to the return code specified in
1.578 + * http://developer.netscape.com/docs/manuals/proxy/adminnt/autoconf.htm#1020923
1.579 + * with the exception that multiple values are not implemented.
1.580 + */
1.581 +
1.582 +nsresult nsPluginHost::FindProxyForURL(const char* url, char* *result)
1.583 +{
1.584 + if (!url || !result) {
1.585 + return NS_ERROR_INVALID_ARG;
1.586 + }
1.587 + nsresult res;
1.588 +
1.589 + nsCOMPtr<nsIProtocolProxyService> proxyService =
1.590 + do_GetService(NS_PROTOCOLPROXYSERVICE_CONTRACTID, &res);
1.591 + if (NS_FAILED(res) || !proxyService)
1.592 + return res;
1.593 +
1.594 + nsRefPtr<nsProtocolProxyService> rawProxyService = do_QueryObject(proxyService);
1.595 + if (!rawProxyService)
1.596 + return NS_ERROR_FAILURE;
1.597 +
1.598 + nsCOMPtr<nsIIOService> ioService = do_GetService(NS_IOSERVICE_CONTRACTID, &res);
1.599 + if (NS_FAILED(res) || !ioService)
1.600 + return res;
1.601 +
1.602 + // make a temporary channel from the argument url
1.603 + nsCOMPtr<nsIChannel> tempChannel;
1.604 + res = ioService->NewChannel(nsDependentCString(url), nullptr, nullptr, getter_AddRefs(tempChannel));
1.605 + if (NS_FAILED(res))
1.606 + return res;
1.607 +
1.608 + nsCOMPtr<nsIProxyInfo> pi;
1.609 +
1.610 + // Remove this deprecated call in the future (see Bug 778201):
1.611 + res = rawProxyService->DeprecatedBlockingResolve(tempChannel, 0, getter_AddRefs(pi));
1.612 + if (NS_FAILED(res))
1.613 + return res;
1.614 +
1.615 + nsAutoCString host, type;
1.616 + int32_t port = -1;
1.617 +
1.618 + // These won't fail, and even if they do... we'll be ok.
1.619 + if (pi) {
1.620 + pi->GetType(type);
1.621 + pi->GetHost(host);
1.622 + pi->GetPort(&port);
1.623 + }
1.624 +
1.625 + if (!pi || host.IsEmpty() || port <= 0 || host.EqualsLiteral("direct")) {
1.626 + *result = PL_strdup("DIRECT");
1.627 + } else if (type.EqualsLiteral("http")) {
1.628 + *result = PR_smprintf("PROXY %s:%d", host.get(), port);
1.629 + } else if (type.EqualsLiteral("socks4")) {
1.630 + *result = PR_smprintf("SOCKS %s:%d", host.get(), port);
1.631 + } else if (type.EqualsLiteral("socks")) {
1.632 + // XXX - this is socks5, but there is no API for us to tell the
1.633 + // plugin that fact. SOCKS for now, in case the proxy server
1.634 + // speaks SOCKS4 as well. See bug 78176
1.635 + // For a long time this was returning an http proxy type, so
1.636 + // very little is probably broken by this
1.637 + *result = PR_smprintf("SOCKS %s:%d", host.get(), port);
1.638 + } else {
1.639 + NS_ASSERTION(false, "Unknown proxy type!");
1.640 + *result = PL_strdup("DIRECT");
1.641 + }
1.642 +
1.643 + if (nullptr == *result)
1.644 + res = NS_ERROR_OUT_OF_MEMORY;
1.645 +
1.646 + return res;
1.647 +}
1.648 +
1.649 +nsresult nsPluginHost::Init()
1.650 +{
1.651 + return NS_OK;
1.652 +}
1.653 +
1.654 +nsresult nsPluginHost::UnloadPlugins()
1.655 +{
1.656 + PLUGIN_LOG(PLUGIN_LOG_NORMAL, ("nsPluginHost::UnloadPlugins Called\n"));
1.657 +
1.658 + if (!mPluginsLoaded)
1.659 + return NS_OK;
1.660 +
1.661 + // we should call nsIPluginInstance::Stop and nsIPluginInstance::SetWindow
1.662 + // for those plugins who want it
1.663 + DestroyRunningInstances(nullptr);
1.664 +
1.665 + nsPluginTag *pluginTag;
1.666 + for (pluginTag = mPlugins; pluginTag; pluginTag = pluginTag->mNext) {
1.667 + pluginTag->TryUnloadPlugin(true);
1.668 + }
1.669 +
1.670 + NS_ITERATIVE_UNREF_LIST(nsRefPtr<nsPluginTag>, mPlugins, mNext);
1.671 + NS_ITERATIVE_UNREF_LIST(nsRefPtr<nsPluginTag>, mCachedPlugins, mNext);
1.672 + NS_ITERATIVE_UNREF_LIST(nsRefPtr<nsInvalidPluginTag>, mInvalidPlugins, mNext);
1.673 +
1.674 + // Lets remove any of the temporary files that we created.
1.675 + if (sPluginTempDir) {
1.676 + sPluginTempDir->Remove(true);
1.677 + NS_RELEASE(sPluginTempDir);
1.678 + }
1.679 +
1.680 +#ifdef XP_WIN
1.681 + if (mPrivateDirServiceProvider) {
1.682 + nsCOMPtr<nsIDirectoryService> dirService =
1.683 + do_GetService(kDirectoryServiceContractID);
1.684 + if (dirService)
1.685 + dirService->UnregisterProvider(mPrivateDirServiceProvider);
1.686 + mPrivateDirServiceProvider = nullptr;
1.687 + }
1.688 +#endif /* XP_WIN */
1.689 +
1.690 + mPluginsLoaded = false;
1.691 +
1.692 + return NS_OK;
1.693 +}
1.694 +
1.695 +void nsPluginHost::OnPluginInstanceDestroyed(nsPluginTag* aPluginTag)
1.696 +{
1.697 + bool hasInstance = false;
1.698 + for (uint32_t i = 0; i < mInstances.Length(); i++) {
1.699 + if (TagForPlugin(mInstances[i]->GetPlugin()) == aPluginTag) {
1.700 + hasInstance = true;
1.701 + break;
1.702 + }
1.703 + }
1.704 +
1.705 + // We have some options for unloading plugins if they have no instances.
1.706 + //
1.707 + // Unloading plugins immediately can be bad - some plugins retain state
1.708 + // between instances even when there are none. This is largely limited to
1.709 + // going from one page to another, so state is retained without an instance
1.710 + // for only a very short period of time. In order to allow this to work
1.711 + // we don't unload plugins immediately by default. This is supported
1.712 + // via a hidden user pref though.
1.713 + //
1.714 + // Another reason not to unload immediately is that loading is expensive,
1.715 + // and it is better to leave popular plugins loaded.
1.716 + //
1.717 + // Our default behavior is to try to unload a plugin three minutes after
1.718 + // its last instance is destroyed. This seems like a reasonable compromise
1.719 + // that allows us to reclaim memory while allowing short state retention
1.720 + // and avoid perf hits for loading popular plugins.
1.721 + if (!hasInstance) {
1.722 + if (UnloadPluginsASAP()) {
1.723 + aPluginTag->TryUnloadPlugin(false);
1.724 + } else {
1.725 + if (aPluginTag->mUnloadTimer) {
1.726 + aPluginTag->mUnloadTimer->Cancel();
1.727 + } else {
1.728 + aPluginTag->mUnloadTimer = do_CreateInstance(NS_TIMER_CONTRACTID);
1.729 + }
1.730 + aPluginTag->mUnloadTimer->InitWithCallback(this, 1000 * 60 * 3, nsITimer::TYPE_ONE_SHOT);
1.731 + }
1.732 + }
1.733 +}
1.734 +
1.735 +nsresult
1.736 +nsPluginHost::GetPluginTempDir(nsIFile **aDir)
1.737 +{
1.738 + if (!sPluginTempDir) {
1.739 + nsCOMPtr<nsIFile> tmpDir;
1.740 + nsresult rv = NS_GetSpecialDirectory(NS_OS_TEMP_DIR,
1.741 + getter_AddRefs(tmpDir));
1.742 + NS_ENSURE_SUCCESS(rv, rv);
1.743 +
1.744 + rv = tmpDir->AppendNative(kPluginTmpDirName);
1.745 +
1.746 + // make it unique, and mode == 0700, not world-readable
1.747 + rv = tmpDir->CreateUnique(nsIFile::DIRECTORY_TYPE, 0700);
1.748 + NS_ENSURE_SUCCESS(rv, rv);
1.749 +
1.750 + tmpDir.swap(sPluginTempDir);
1.751 + }
1.752 +
1.753 + return sPluginTempDir->Clone(aDir);
1.754 +}
1.755 +
1.756 +nsresult
1.757 +nsPluginHost::InstantiatePluginInstance(const char *aMimeType, nsIURI* aURL,
1.758 + nsObjectLoadingContent *aContent,
1.759 + nsPluginInstanceOwner** aOwner)
1.760 +{
1.761 + NS_ENSURE_ARG_POINTER(aOwner);
1.762 +
1.763 +#ifdef PLUGIN_LOGGING
1.764 + nsAutoCString urlSpec;
1.765 + if (aURL)
1.766 + aURL->GetAsciiSpec(urlSpec);
1.767 +
1.768 + PR_LOG(nsPluginLogging::gPluginLog, PLUGIN_LOG_NORMAL,
1.769 + ("nsPluginHost::InstantiatePlugin Begin mime=%s, url=%s\n",
1.770 + aMimeType, urlSpec.get()));
1.771 +
1.772 + PR_LogFlush();
1.773 +#endif
1.774 +
1.775 + if (!aMimeType) {
1.776 + NS_NOTREACHED("Attempting to spawn a plugin with no mime type");
1.777 + return NS_ERROR_FAILURE;
1.778 + }
1.779 +
1.780 + nsRefPtr<nsPluginInstanceOwner> instanceOwner = new nsPluginInstanceOwner();
1.781 + if (!instanceOwner) {
1.782 + return NS_ERROR_OUT_OF_MEMORY;
1.783 + }
1.784 +
1.785 + nsCOMPtr<nsIContent> ourContent = do_QueryInterface(static_cast<nsIImageLoadingContent*>(aContent));
1.786 + nsresult rv = instanceOwner->Init(ourContent);
1.787 + if (NS_FAILED(rv)) {
1.788 + return rv;
1.789 + }
1.790 +
1.791 + nsPluginTagType tagType;
1.792 + rv = instanceOwner->GetTagType(&tagType);
1.793 + if (NS_FAILED(rv)) {
1.794 + return rv;
1.795 + }
1.796 +
1.797 + if (tagType != nsPluginTagType_Embed &&
1.798 + tagType != nsPluginTagType_Applet &&
1.799 + tagType != nsPluginTagType_Object) {
1.800 + return NS_ERROR_FAILURE;
1.801 + }
1.802 +
1.803 + rv = SetUpPluginInstance(aMimeType, aURL, instanceOwner);
1.804 + if (NS_FAILED(rv)) {
1.805 + return NS_ERROR_FAILURE;
1.806 + }
1.807 +
1.808 + nsRefPtr<nsNPAPIPluginInstance> instance;
1.809 + rv = instanceOwner->GetInstance(getter_AddRefs(instance));
1.810 + if (NS_FAILED(rv)) {
1.811 + return rv;
1.812 + }
1.813 +
1.814 + if (instance) {
1.815 + instanceOwner->CreateWidget();
1.816 +
1.817 + // If we've got a native window, the let the plugin know about it.
1.818 + instanceOwner->CallSetWindow();
1.819 + }
1.820 +
1.821 + // At this point we consider instantiation to be successful. Do not return an error.
1.822 + instanceOwner.forget(aOwner);
1.823 +
1.824 +#ifdef PLUGIN_LOGGING
1.825 + nsAutoCString urlSpec2;
1.826 + if (aURL != nullptr) aURL->GetAsciiSpec(urlSpec2);
1.827 +
1.828 + PR_LOG(nsPluginLogging::gPluginLog, PLUGIN_LOG_NORMAL,
1.829 + ("nsPluginHost::InstantiatePlugin Finished mime=%s, rv=%d, url=%s\n",
1.830 + aMimeType, rv, urlSpec2.get()));
1.831 +
1.832 + PR_LogFlush();
1.833 +#endif
1.834 +
1.835 + return NS_OK;
1.836 +}
1.837 +
1.838 +nsPluginTag*
1.839 +nsPluginHost::FindTagForLibrary(PRLibrary* aLibrary)
1.840 +{
1.841 + nsPluginTag* pluginTag;
1.842 + for (pluginTag = mPlugins; pluginTag; pluginTag = pluginTag->mNext) {
1.843 + if (pluginTag->mLibrary == aLibrary) {
1.844 + return pluginTag;
1.845 + }
1.846 + }
1.847 + return nullptr;
1.848 +}
1.849 +
1.850 +nsPluginTag*
1.851 +nsPluginHost::TagForPlugin(nsNPAPIPlugin* aPlugin)
1.852 +{
1.853 + nsPluginTag* pluginTag;
1.854 + for (pluginTag = mPlugins; pluginTag; pluginTag = pluginTag->mNext) {
1.855 + if (pluginTag->mPlugin == aPlugin) {
1.856 + return pluginTag;
1.857 + }
1.858 + }
1.859 + // a plugin should never exist without a corresponding tag
1.860 + NS_ERROR("TagForPlugin has failed");
1.861 + return nullptr;
1.862 +}
1.863 +
1.864 +nsresult nsPluginHost::SetUpPluginInstance(const char *aMimeType,
1.865 + nsIURI *aURL,
1.866 + nsPluginInstanceOwner *aOwner)
1.867 +{
1.868 + NS_ENSURE_ARG_POINTER(aOwner);
1.869 +
1.870 + nsresult rv = TrySetUpPluginInstance(aMimeType, aURL, aOwner);
1.871 + if (NS_SUCCEEDED(rv)) {
1.872 + return rv;
1.873 + }
1.874 +
1.875 + // If we failed to load a plugin instance we'll try again after
1.876 + // reloading our plugin list. Only do that once per document to
1.877 + // avoid redundant high resource usage on pages with multiple
1.878 + // unkown instance types. We'll do that by caching the document.
1.879 + nsCOMPtr<nsIDocument> document;
1.880 + aOwner->GetDocument(getter_AddRefs(document));
1.881 +
1.882 + nsCOMPtr<nsIDocument> currentdocument = do_QueryReferent(mCurrentDocument);
1.883 + if (document == currentdocument) {
1.884 + return rv;
1.885 + }
1.886 +
1.887 + mCurrentDocument = do_GetWeakReference(document);
1.888 +
1.889 + // Don't try to set up an instance again if nothing changed.
1.890 + if (ReloadPlugins() == NS_ERROR_PLUGINS_PLUGINSNOTCHANGED) {
1.891 + return rv;
1.892 + }
1.893 +
1.894 + return TrySetUpPluginInstance(aMimeType, aURL, aOwner);
1.895 +}
1.896 +
1.897 +nsresult
1.898 +nsPluginHost::TrySetUpPluginInstance(const char *aMimeType,
1.899 + nsIURI *aURL,
1.900 + nsPluginInstanceOwner *aOwner)
1.901 +{
1.902 +#ifdef PLUGIN_LOGGING
1.903 + nsAutoCString urlSpec;
1.904 + if (aURL != nullptr) aURL->GetSpec(urlSpec);
1.905 +
1.906 + PR_LOG(nsPluginLogging::gPluginLog, PLUGIN_LOG_NORMAL,
1.907 + ("nsPluginHost::TrySetupPluginInstance Begin mime=%s, owner=%p, url=%s\n",
1.908 + aMimeType, aOwner, urlSpec.get()));
1.909 +
1.910 + PR_LogFlush();
1.911 +#endif
1.912 +
1.913 + nsRefPtr<nsNPAPIPlugin> plugin;
1.914 + GetPlugin(aMimeType, getter_AddRefs(plugin));
1.915 + if (!plugin) {
1.916 + return NS_ERROR_FAILURE;
1.917 + }
1.918 +
1.919 + nsPluginTag* pluginTag = FindPluginForType(aMimeType, true);
1.920 +
1.921 + NS_ASSERTION(pluginTag, "Must have plugin tag here!");
1.922 +
1.923 +#if defined(MOZ_WIDGET_ANDROID) && defined(MOZ_CRASHREPORTER)
1.924 + if (pluginTag->mIsFlashPlugin) {
1.925 + CrashReporter::AnnotateCrashReport(NS_LITERAL_CSTRING("FlashVersion"), pluginTag->mVersion);
1.926 + }
1.927 +#endif
1.928 +
1.929 + nsRefPtr<nsNPAPIPluginInstance> instance = new nsNPAPIPluginInstance();
1.930 +
1.931 + // This will create the owning reference. The connection must be made between the
1.932 + // instance and the instance owner before initialization. Plugins can call into
1.933 + // the browser during initialization.
1.934 + aOwner->SetInstance(instance.get());
1.935 +
1.936 + // Add the instance to the instances list before we call NPP_New so that
1.937 + // it is "in play" before NPP_New happens. Take it out if NPP_New fails.
1.938 + mInstances.AppendElement(instance.get());
1.939 +
1.940 + // this should not addref the instance or owner
1.941 + // except in some cases not Java, see bug 140931
1.942 + // our COM pointer will free the peer
1.943 + nsresult rv = instance->Initialize(plugin.get(), aOwner, aMimeType);
1.944 + if (NS_FAILED(rv)) {
1.945 + mInstances.RemoveElement(instance.get());
1.946 + aOwner->SetInstance(nullptr);
1.947 + return rv;
1.948 + }
1.949 +
1.950 + // Cancel the plugin unload timer since we are creating
1.951 + // an instance for it.
1.952 + if (pluginTag->mUnloadTimer) {
1.953 + pluginTag->mUnloadTimer->Cancel();
1.954 + }
1.955 +
1.956 +#ifdef PLUGIN_LOGGING
1.957 + nsAutoCString urlSpec2;
1.958 + if (aURL)
1.959 + aURL->GetSpec(urlSpec2);
1.960 +
1.961 + PR_LOG(nsPluginLogging::gPluginLog, PLUGIN_LOG_BASIC,
1.962 + ("nsPluginHost::TrySetupPluginInstance Finished mime=%s, rv=%d, owner=%p, url=%s\n",
1.963 + aMimeType, rv, aOwner, urlSpec2.get()));
1.964 +
1.965 + PR_LogFlush();
1.966 +#endif
1.967 +
1.968 + return rv;
1.969 +}
1.970 +
1.971 +bool
1.972 +nsPluginHost::PluginExistsForType(const char* aMimeType)
1.973 +{
1.974 + nsPluginTag *plugin = FindPluginForType(aMimeType, false);
1.975 + return nullptr != plugin;
1.976 +}
1.977 +
1.978 +NS_IMETHODIMP
1.979 +nsPluginHost::GetPluginTagForType(const nsACString& aMimeType,
1.980 + nsIPluginTag** aResult)
1.981 +{
1.982 + nsPluginTag* plugin = FindPluginForType(aMimeType.Data(), true);
1.983 + if (!plugin) {
1.984 + plugin = FindPluginForType(aMimeType.Data(), false);
1.985 + }
1.986 + if (!plugin) {
1.987 + return NS_ERROR_NOT_AVAILABLE;
1.988 + }
1.989 + NS_ADDREF(*aResult = plugin);
1.990 + return NS_OK;
1.991 +}
1.992 +
1.993 +NS_IMETHODIMP
1.994 +nsPluginHost::GetStateForType(const nsACString &aMimeType, uint32_t* aResult)
1.995 +{
1.996 + nsPluginTag *plugin = FindPluginForType(aMimeType.Data(), true);
1.997 + if (!plugin) {
1.998 + plugin = FindPluginForType(aMimeType.Data(), false);
1.999 + }
1.1000 + if (!plugin) {
1.1001 + return NS_ERROR_UNEXPECTED;
1.1002 + }
1.1003 +
1.1004 + return plugin->GetEnabledState(aResult);
1.1005 +}
1.1006 +
1.1007 +NS_IMETHODIMP
1.1008 +nsPluginHost::GetBlocklistStateForType(const char *aMimeType, uint32_t *aState)
1.1009 +{
1.1010 + nsPluginTag *plugin = FindPluginForType(aMimeType, true);
1.1011 + if (!plugin) {
1.1012 + plugin = FindPluginForType(aMimeType, false);
1.1013 + }
1.1014 + if (!plugin) {
1.1015 + return NS_ERROR_FAILURE;
1.1016 + }
1.1017 +
1.1018 + *aState = plugin->GetBlocklistState();
1.1019 + return NS_OK;
1.1020 +}
1.1021 +
1.1022 +NS_IMETHODIMP
1.1023 +nsPluginHost::GetPermissionStringForType(const nsACString &aMimeType, nsACString &aPermissionString)
1.1024 +{
1.1025 + aPermissionString.Truncate();
1.1026 + uint32_t blocklistState;
1.1027 + nsresult rv = GetBlocklistStateForType(aMimeType.Data(), &blocklistState);
1.1028 + NS_ENSURE_SUCCESS(rv, rv);
1.1029 + nsPluginTag *tag = FindPluginForType(aMimeType.Data(), true);
1.1030 + if (!tag) {
1.1031 + tag = FindPluginForType(aMimeType.Data(), false);
1.1032 + }
1.1033 + if (!tag) {
1.1034 + return NS_ERROR_FAILURE;
1.1035 + }
1.1036 +
1.1037 + if (blocklistState == nsIBlocklistService::STATE_VULNERABLE_UPDATE_AVAILABLE ||
1.1038 + blocklistState == nsIBlocklistService::STATE_VULNERABLE_NO_UPDATE) {
1.1039 + aPermissionString.AssignLiteral("plugin-vulnerable:");
1.1040 + }
1.1041 + else {
1.1042 + aPermissionString.AssignLiteral("plugin:");
1.1043 + }
1.1044 +
1.1045 + aPermissionString.Append(tag->GetNiceFileName());
1.1046 +
1.1047 + return NS_OK;
1.1048 +}
1.1049 +
1.1050 +// check comma delimitered extensions
1.1051 +static int CompareExtensions(const char *aExtensionList, const char *aExtension)
1.1052 +{
1.1053 + if (!aExtensionList || !aExtension)
1.1054 + return -1;
1.1055 +
1.1056 + const char *pExt = aExtensionList;
1.1057 + const char *pComma = strchr(pExt, ',');
1.1058 + if (!pComma)
1.1059 + return PL_strcasecmp(pExt, aExtension);
1.1060 +
1.1061 + int extlen = strlen(aExtension);
1.1062 + while (pComma) {
1.1063 + int length = pComma - pExt;
1.1064 + if (length == extlen && 0 == PL_strncasecmp(aExtension, pExt, length))
1.1065 + return 0;
1.1066 + pComma++;
1.1067 + pExt = pComma;
1.1068 + pComma = strchr(pExt, ',');
1.1069 + }
1.1070 +
1.1071 + // the last one
1.1072 + return PL_strcasecmp(pExt, aExtension);
1.1073 +}
1.1074 +
1.1075 +nsresult
1.1076 +nsPluginHost::IsPluginEnabledForExtension(const char* aExtension,
1.1077 + const char* &aMimeType)
1.1078 +{
1.1079 + nsPluginTag *plugin = FindPluginEnabledForExtension(aExtension, aMimeType);
1.1080 + if (plugin)
1.1081 + return NS_OK;
1.1082 +
1.1083 + return NS_ERROR_FAILURE;
1.1084 +}
1.1085 +
1.1086 +void
1.1087 +nsPluginHost::GetPlugins(nsTArray<nsRefPtr<nsPluginTag> >& aPluginArray)
1.1088 +{
1.1089 + aPluginArray.Clear();
1.1090 +
1.1091 + LoadPlugins();
1.1092 +
1.1093 + nsPluginTag* plugin = mPlugins;
1.1094 + while (plugin != nullptr) {
1.1095 + if (plugin->IsEnabled()) {
1.1096 + aPluginArray.AppendElement(plugin);
1.1097 + }
1.1098 + plugin = plugin->mNext;
1.1099 + }
1.1100 +}
1.1101 +
1.1102 +NS_IMETHODIMP
1.1103 +nsPluginHost::GetPluginTags(uint32_t* aPluginCount, nsIPluginTag*** aResults)
1.1104 +{
1.1105 + LoadPlugins();
1.1106 +
1.1107 + uint32_t count = 0;
1.1108 + nsRefPtr<nsPluginTag> plugin = mPlugins;
1.1109 + while (plugin != nullptr) {
1.1110 + count++;
1.1111 + plugin = plugin->mNext;
1.1112 + }
1.1113 +
1.1114 + *aResults = static_cast<nsIPluginTag**>
1.1115 + (nsMemory::Alloc(count * sizeof(**aResults)));
1.1116 + if (!*aResults)
1.1117 + return NS_ERROR_OUT_OF_MEMORY;
1.1118 +
1.1119 + *aPluginCount = count;
1.1120 +
1.1121 + plugin = mPlugins;
1.1122 + for (uint32_t i = 0; i < count; i++) {
1.1123 + (*aResults)[i] = plugin;
1.1124 + NS_ADDREF((*aResults)[i]);
1.1125 + plugin = plugin->mNext;
1.1126 + }
1.1127 +
1.1128 + return NS_OK;
1.1129 +}
1.1130 +
1.1131 +nsPluginTag*
1.1132 +nsPluginHost::FindPreferredPlugin(const InfallibleTArray<nsPluginTag*>& matches)
1.1133 +{
1.1134 + // We prefer the plugin with the highest version number.
1.1135 + /// XXX(johns): This seems to assume the only time multiple plugins will have
1.1136 + /// the same MIME type is if they're multiple versions of the same
1.1137 + /// plugin -- but since plugin filenames and pretty names can both
1.1138 + /// update, it's probably less arbitrary than just going at it
1.1139 + /// alphabetically.
1.1140 +
1.1141 + if (matches.IsEmpty()) {
1.1142 + return nullptr;
1.1143 + }
1.1144 +
1.1145 + nsPluginTag *preferredPlugin = matches[0];
1.1146 + for (unsigned int i = 1; i < matches.Length(); i++) {
1.1147 + if (mozilla::Version(matches[i]->mVersion.get()) > preferredPlugin->mVersion.get()) {
1.1148 + preferredPlugin = matches[i];
1.1149 + }
1.1150 + }
1.1151 +
1.1152 + return preferredPlugin;
1.1153 +}
1.1154 +
1.1155 +nsPluginTag*
1.1156 +nsPluginHost::FindPluginForType(const char* aMimeType,
1.1157 + bool aCheckEnabled)
1.1158 +{
1.1159 + if (!aMimeType) {
1.1160 + return nullptr;
1.1161 + }
1.1162 +
1.1163 + LoadPlugins();
1.1164 +
1.1165 + InfallibleTArray<nsPluginTag*> matchingPlugins;
1.1166 +
1.1167 + nsPluginTag *plugin = mPlugins;
1.1168 + while (plugin) {
1.1169 + if (!aCheckEnabled || plugin->IsActive()) {
1.1170 + int32_t mimeCount = plugin->mMimeTypes.Length();
1.1171 + for (int32_t i = 0; i < mimeCount; i++) {
1.1172 + if (0 == PL_strcasecmp(plugin->mMimeTypes[i].get(), aMimeType)) {
1.1173 + matchingPlugins.AppendElement(plugin);
1.1174 + break;
1.1175 + }
1.1176 + }
1.1177 + }
1.1178 + plugin = plugin->mNext;
1.1179 + }
1.1180 +
1.1181 + return FindPreferredPlugin(matchingPlugins);
1.1182 +}
1.1183 +
1.1184 +nsPluginTag*
1.1185 +nsPluginHost::FindPluginEnabledForExtension(const char* aExtension,
1.1186 + const char*& aMimeType)
1.1187 +{
1.1188 + if (!aExtension) {
1.1189 + return nullptr;
1.1190 + }
1.1191 +
1.1192 + LoadPlugins();
1.1193 +
1.1194 + InfallibleTArray<nsPluginTag*> matchingPlugins;
1.1195 +
1.1196 + nsPluginTag *plugin = mPlugins;
1.1197 + while (plugin) {
1.1198 + if (plugin->IsActive()) {
1.1199 + int32_t variants = plugin->mExtensions.Length();
1.1200 + for (int32_t i = 0; i < variants; i++) {
1.1201 + // mExtensionsArray[cnt] is a list of extensions separated by commas
1.1202 + if (0 == CompareExtensions(plugin->mExtensions[i].get(), aExtension)) {
1.1203 + matchingPlugins.AppendElement(plugin);
1.1204 + break;
1.1205 + }
1.1206 + }
1.1207 + }
1.1208 + plugin = plugin->mNext;
1.1209 + }
1.1210 +
1.1211 + nsPluginTag *preferredPlugin = FindPreferredPlugin(matchingPlugins);
1.1212 + if (!preferredPlugin) {
1.1213 + return nullptr;
1.1214 + }
1.1215 +
1.1216 + int32_t variants = preferredPlugin->mExtensions.Length();
1.1217 + for (int32_t i = 0; i < variants; i++) {
1.1218 + // mExtensionsArray[cnt] is a list of extensions separated by commas
1.1219 + if (0 == CompareExtensions(preferredPlugin->mExtensions[i].get(), aExtension)) {
1.1220 + aMimeType = preferredPlugin->mMimeTypes[i].get();
1.1221 + break;
1.1222 + }
1.1223 + }
1.1224 +
1.1225 + return preferredPlugin;
1.1226 +}
1.1227 +
1.1228 +static nsresult CreateNPAPIPlugin(nsPluginTag *aPluginTag,
1.1229 + nsNPAPIPlugin **aOutNPAPIPlugin)
1.1230 +{
1.1231 + // If this is an in-process plugin we'll need to load it here if we haven't already.
1.1232 + if (!nsNPAPIPlugin::RunPluginOOP(aPluginTag)) {
1.1233 + if (aPluginTag->mFullPath.IsEmpty())
1.1234 + return NS_ERROR_FAILURE;
1.1235 + nsCOMPtr<nsIFile> file = do_CreateInstance("@mozilla.org/file/local;1");
1.1236 + file->InitWithPath(NS_ConvertUTF8toUTF16(aPluginTag->mFullPath));
1.1237 + nsPluginFile pluginFile(file);
1.1238 + PRLibrary* pluginLibrary = nullptr;
1.1239 +
1.1240 + if (NS_FAILED(pluginFile.LoadPlugin(&pluginLibrary)) || !pluginLibrary)
1.1241 + return NS_ERROR_FAILURE;
1.1242 +
1.1243 + aPluginTag->mLibrary = pluginLibrary;
1.1244 + }
1.1245 +
1.1246 + nsresult rv;
1.1247 + rv = nsNPAPIPlugin::CreatePlugin(aPluginTag, aOutNPAPIPlugin);
1.1248 +
1.1249 + return rv;
1.1250 +}
1.1251 +
1.1252 +nsresult nsPluginHost::EnsurePluginLoaded(nsPluginTag* aPluginTag)
1.1253 +{
1.1254 + nsRefPtr<nsNPAPIPlugin> plugin = aPluginTag->mPlugin;
1.1255 + if (!plugin) {
1.1256 + nsresult rv = CreateNPAPIPlugin(aPluginTag, getter_AddRefs(plugin));
1.1257 + if (NS_FAILED(rv)) {
1.1258 + return rv;
1.1259 + }
1.1260 + aPluginTag->mPlugin = plugin;
1.1261 + }
1.1262 + return NS_OK;
1.1263 +}
1.1264 +
1.1265 +nsresult nsPluginHost::GetPlugin(const char *aMimeType, nsNPAPIPlugin** aPlugin)
1.1266 +{
1.1267 + nsresult rv = NS_ERROR_FAILURE;
1.1268 + *aPlugin = nullptr;
1.1269 +
1.1270 + if (!aMimeType)
1.1271 + return NS_ERROR_ILLEGAL_VALUE;
1.1272 +
1.1273 + // If plugins haven't been scanned yet, do so now
1.1274 + LoadPlugins();
1.1275 +
1.1276 + nsPluginTag* pluginTag = FindPluginForType(aMimeType, true);
1.1277 + if (pluginTag) {
1.1278 + rv = NS_OK;
1.1279 + PLUGIN_LOG(PLUGIN_LOG_BASIC,
1.1280 + ("nsPluginHost::GetPlugin Begin mime=%s, plugin=%s\n",
1.1281 + aMimeType, pluginTag->mFileName.get()));
1.1282 +
1.1283 +#ifdef DEBUG
1.1284 + if (aMimeType && !pluginTag->mFileName.IsEmpty())
1.1285 + printf("For %s found plugin %s\n", aMimeType, pluginTag->mFileName.get());
1.1286 +#endif
1.1287 +
1.1288 + rv = EnsurePluginLoaded(pluginTag);
1.1289 + if (NS_FAILED(rv)) {
1.1290 + return rv;
1.1291 + }
1.1292 +
1.1293 + NS_ADDREF(*aPlugin = pluginTag->mPlugin);
1.1294 + return NS_OK;
1.1295 + }
1.1296 +
1.1297 + PLUGIN_LOG(PLUGIN_LOG_NORMAL,
1.1298 + ("nsPluginHost::GetPlugin End mime=%s, rv=%d, plugin=%p name=%s\n",
1.1299 + aMimeType, rv, *aPlugin,
1.1300 + (pluginTag ? pluginTag->mFileName.get() : "(not found)")));
1.1301 +
1.1302 + return rv;
1.1303 +}
1.1304 +
1.1305 +// Normalize 'host' to ACE.
1.1306 +nsresult
1.1307 +nsPluginHost::NormalizeHostname(nsCString& host)
1.1308 +{
1.1309 + if (IsASCII(host)) {
1.1310 + ToLowerCase(host);
1.1311 + return NS_OK;
1.1312 + }
1.1313 +
1.1314 + if (!mIDNService) {
1.1315 + nsresult rv;
1.1316 + mIDNService = do_GetService(NS_IDNSERVICE_CONTRACTID, &rv);
1.1317 + NS_ENSURE_SUCCESS(rv, rv);
1.1318 + }
1.1319 +
1.1320 + return mIDNService->ConvertUTF8toACE(host, host);
1.1321 +}
1.1322 +
1.1323 +// Enumerate a 'sites' array returned by GetSitesWithData and determine if
1.1324 +// any of them have a base domain in common with 'domain'; if so, append them
1.1325 +// to the 'result' array. If 'firstMatchOnly' is true, return after finding the
1.1326 +// first match.
1.1327 +nsresult
1.1328 +nsPluginHost::EnumerateSiteData(const nsACString& domain,
1.1329 + const InfallibleTArray<nsCString>& sites,
1.1330 + InfallibleTArray<nsCString>& result,
1.1331 + bool firstMatchOnly)
1.1332 +{
1.1333 + NS_ASSERTION(!domain.IsVoid(), "null domain string");
1.1334 +
1.1335 + nsresult rv;
1.1336 + if (!mTLDService) {
1.1337 + mTLDService = do_GetService(NS_EFFECTIVETLDSERVICE_CONTRACTID, &rv);
1.1338 + NS_ENSURE_SUCCESS(rv, rv);
1.1339 + }
1.1340 +
1.1341 + // Get the base domain from the domain.
1.1342 + nsCString baseDomain;
1.1343 + rv = mTLDService->GetBaseDomainFromHost(domain, 0, baseDomain);
1.1344 + bool isIP = rv == NS_ERROR_HOST_IS_IP_ADDRESS;
1.1345 + if (isIP || rv == NS_ERROR_INSUFFICIENT_DOMAIN_LEVELS) {
1.1346 + // The base domain is the site itself. However, we must be careful to
1.1347 + // normalize.
1.1348 + baseDomain = domain;
1.1349 + rv = NormalizeHostname(baseDomain);
1.1350 + NS_ENSURE_SUCCESS(rv, rv);
1.1351 + } else if (NS_FAILED(rv)) {
1.1352 + return rv;
1.1353 + }
1.1354 +
1.1355 + // Enumerate the array of sites with data.
1.1356 + for (uint32_t i = 0; i < sites.Length(); ++i) {
1.1357 + const nsCString& site = sites[i];
1.1358 +
1.1359 + // Check if the site is an IP address.
1.1360 + bool siteIsIP =
1.1361 + site.Length() >= 2 && site.First() == '[' && site.Last() == ']';
1.1362 + if (siteIsIP != isIP)
1.1363 + continue;
1.1364 +
1.1365 + nsCString siteBaseDomain;
1.1366 + if (siteIsIP) {
1.1367 + // Strip the '[]'.
1.1368 + siteBaseDomain = Substring(site, 1, site.Length() - 2);
1.1369 + } else {
1.1370 + // Determine the base domain of the site.
1.1371 + rv = mTLDService->GetBaseDomainFromHost(site, 0, siteBaseDomain);
1.1372 + if (rv == NS_ERROR_INSUFFICIENT_DOMAIN_LEVELS) {
1.1373 + // The base domain is the site itself. However, we must be careful to
1.1374 + // normalize.
1.1375 + siteBaseDomain = site;
1.1376 + rv = NormalizeHostname(siteBaseDomain);
1.1377 + NS_ENSURE_SUCCESS(rv, rv);
1.1378 + } else if (NS_FAILED(rv)) {
1.1379 + return rv;
1.1380 + }
1.1381 + }
1.1382 +
1.1383 + // At this point, we can do an exact comparison of the two domains.
1.1384 + if (baseDomain != siteBaseDomain) {
1.1385 + continue;
1.1386 + }
1.1387 +
1.1388 + // Append the site to the result array.
1.1389 + result.AppendElement(site);
1.1390 +
1.1391 + // If we're supposed to return early, do so.
1.1392 + if (firstMatchOnly) {
1.1393 + break;
1.1394 + }
1.1395 + }
1.1396 +
1.1397 + return NS_OK;
1.1398 +}
1.1399 +
1.1400 +NS_IMETHODIMP
1.1401 +nsPluginHost::RegisterPlayPreviewMimeType(const nsACString& mimeType,
1.1402 + bool ignoreCTP,
1.1403 + const nsACString& redirectURL)
1.1404 +{
1.1405 + nsAutoCString mt(mimeType);
1.1406 + nsAutoCString url(redirectURL);
1.1407 + if (url.Length() == 0) {
1.1408 + // using default play preview iframe URL, if redirectURL is not specified
1.1409 + url.Assign("data:application/x-moz-playpreview;,");
1.1410 + url.Append(mimeType);
1.1411 + }
1.1412 +
1.1413 + nsRefPtr<nsPluginPlayPreviewInfo> playPreview =
1.1414 + new nsPluginPlayPreviewInfo(mt.get(), ignoreCTP, url.get());
1.1415 + mPlayPreviewMimeTypes.AppendElement(playPreview);
1.1416 + return NS_OK;
1.1417 +}
1.1418 +
1.1419 +NS_IMETHODIMP
1.1420 +nsPluginHost::UnregisterPlayPreviewMimeType(const nsACString& mimeType)
1.1421 +{
1.1422 + nsAutoCString mimeTypeToRemove(mimeType);
1.1423 + for (uint32_t i = mPlayPreviewMimeTypes.Length(); i > 0; i--) {
1.1424 + nsRefPtr<nsPluginPlayPreviewInfo> pp = mPlayPreviewMimeTypes[i - 1];
1.1425 + if (PL_strcasecmp(pp.get()->mMimeType.get(), mimeTypeToRemove.get()) == 0) {
1.1426 + mPlayPreviewMimeTypes.RemoveElementAt(i - 1);
1.1427 + break;
1.1428 + }
1.1429 + }
1.1430 + return NS_OK;
1.1431 +}
1.1432 +
1.1433 +NS_IMETHODIMP
1.1434 +nsPluginHost::GetPlayPreviewInfo(const nsACString& mimeType,
1.1435 + nsIPluginPlayPreviewInfo** aResult)
1.1436 +{
1.1437 + nsAutoCString mimeTypeToFind(mimeType);
1.1438 + for (uint32_t i = 0; i < mPlayPreviewMimeTypes.Length(); i++) {
1.1439 + nsRefPtr<nsPluginPlayPreviewInfo> pp = mPlayPreviewMimeTypes[i];
1.1440 + if (PL_strcasecmp(pp.get()->mMimeType.get(), mimeTypeToFind.get()) == 0) {
1.1441 + *aResult = new nsPluginPlayPreviewInfo(pp.get());
1.1442 + NS_ADDREF(*aResult);
1.1443 + return NS_OK;
1.1444 + }
1.1445 + }
1.1446 + *aResult = nullptr;
1.1447 + return NS_ERROR_NOT_AVAILABLE;
1.1448 +}
1.1449 +
1.1450 +NS_IMETHODIMP
1.1451 +nsPluginHost::ClearSiteData(nsIPluginTag* plugin, const nsACString& domain,
1.1452 + uint64_t flags, int64_t maxAge)
1.1453 +{
1.1454 + // maxAge must be either a nonnegative integer or -1.
1.1455 + NS_ENSURE_ARG(maxAge >= 0 || maxAge == -1);
1.1456 +
1.1457 + // Caller may give us a tag object that is no longer live.
1.1458 + if (!IsLiveTag(plugin)) {
1.1459 + return NS_ERROR_NOT_AVAILABLE;
1.1460 + }
1.1461 +
1.1462 + nsPluginTag* tag = static_cast<nsPluginTag*>(plugin);
1.1463 +
1.1464 + // We only ensure support for clearing Flash site data for now.
1.1465 + // We will also attempt to clear data for any plugin that happens
1.1466 + // to be loaded already.
1.1467 + if (!tag->mIsFlashPlugin && !tag->mPlugin) {
1.1468 + return NS_ERROR_FAILURE;
1.1469 + }
1.1470 +
1.1471 + // Make sure the plugin is loaded.
1.1472 + nsresult rv = EnsurePluginLoaded(tag);
1.1473 + if (NS_FAILED(rv)) {
1.1474 + return rv;
1.1475 + }
1.1476 +
1.1477 + PluginLibrary* library = tag->mPlugin->GetLibrary();
1.1478 +
1.1479 + // If 'domain' is the null string, clear everything.
1.1480 + if (domain.IsVoid()) {
1.1481 + return library->NPP_ClearSiteData(nullptr, flags, maxAge);
1.1482 + }
1.1483 +
1.1484 + // Get the list of sites from the plugin.
1.1485 + InfallibleTArray<nsCString> sites;
1.1486 + rv = library->NPP_GetSitesWithData(sites);
1.1487 + NS_ENSURE_SUCCESS(rv, rv);
1.1488 +
1.1489 + // Enumerate the sites and build a list of matches.
1.1490 + InfallibleTArray<nsCString> matches;
1.1491 + rv = EnumerateSiteData(domain, sites, matches, false);
1.1492 + NS_ENSURE_SUCCESS(rv, rv);
1.1493 +
1.1494 + // Clear the matches.
1.1495 + for (uint32_t i = 0; i < matches.Length(); ++i) {
1.1496 + const nsCString& match = matches[i];
1.1497 + rv = library->NPP_ClearSiteData(match.get(), flags, maxAge);
1.1498 + NS_ENSURE_SUCCESS(rv, rv);
1.1499 + }
1.1500 +
1.1501 + return NS_OK;
1.1502 +}
1.1503 +
1.1504 +NS_IMETHODIMP
1.1505 +nsPluginHost::SiteHasData(nsIPluginTag* plugin, const nsACString& domain,
1.1506 + bool* result)
1.1507 +{
1.1508 + // Caller may give us a tag object that is no longer live.
1.1509 + if (!IsLiveTag(plugin)) {
1.1510 + return NS_ERROR_NOT_AVAILABLE;
1.1511 + }
1.1512 +
1.1513 + nsPluginTag* tag = static_cast<nsPluginTag*>(plugin);
1.1514 +
1.1515 + // We only ensure support for clearing Flash site data for now.
1.1516 + // We will also attempt to clear data for any plugin that happens
1.1517 + // to be loaded already.
1.1518 + if (!tag->mIsFlashPlugin && !tag->mPlugin) {
1.1519 + return NS_ERROR_FAILURE;
1.1520 + }
1.1521 +
1.1522 + // Make sure the plugin is loaded.
1.1523 + nsresult rv = EnsurePluginLoaded(tag);
1.1524 + if (NS_FAILED(rv)) {
1.1525 + return rv;
1.1526 + }
1.1527 +
1.1528 + PluginLibrary* library = tag->mPlugin->GetLibrary();
1.1529 +
1.1530 + // Get the list of sites from the plugin.
1.1531 + InfallibleTArray<nsCString> sites;
1.1532 + rv = library->NPP_GetSitesWithData(sites);
1.1533 + NS_ENSURE_SUCCESS(rv, rv);
1.1534 +
1.1535 + // If there's no data, we're done.
1.1536 + if (sites.IsEmpty()) {
1.1537 + *result = false;
1.1538 + return NS_OK;
1.1539 + }
1.1540 +
1.1541 + // If 'domain' is the null string, and there's data for at least one site,
1.1542 + // we're done.
1.1543 + if (domain.IsVoid()) {
1.1544 + *result = true;
1.1545 + return NS_OK;
1.1546 + }
1.1547 +
1.1548 + // Enumerate the sites and determine if there's a match.
1.1549 + InfallibleTArray<nsCString> matches;
1.1550 + rv = EnumerateSiteData(domain, sites, matches, true);
1.1551 + NS_ENSURE_SUCCESS(rv, rv);
1.1552 +
1.1553 + *result = !matches.IsEmpty();
1.1554 + return NS_OK;
1.1555 +}
1.1556 +
1.1557 +bool nsPluginHost::IsJavaMIMEType(const char* aType)
1.1558 +{
1.1559 + // The java mime pref may well not be one of these,
1.1560 + // e.g. application/x-java-test used in the test suite
1.1561 + nsAdoptingCString javaMIME = Preferences::GetCString(kPrefJavaMIME);
1.1562 + return aType &&
1.1563 + (javaMIME.EqualsIgnoreCase(aType) ||
1.1564 + (0 == PL_strncasecmp(aType, "application/x-java-vm",
1.1565 + sizeof("application/x-java-vm") - 1)) ||
1.1566 + (0 == PL_strncasecmp(aType, "application/x-java-applet",
1.1567 + sizeof("application/x-java-applet") - 1)) ||
1.1568 + (0 == PL_strncasecmp(aType, "application/x-java-bean",
1.1569 + sizeof("application/x-java-bean") - 1)));
1.1570 +}
1.1571 +
1.1572 +// Check whether or not a tag is a live, valid tag, and that it's loaded.
1.1573 +bool
1.1574 +nsPluginHost::IsLiveTag(nsIPluginTag* aPluginTag)
1.1575 +{
1.1576 + nsPluginTag* tag;
1.1577 + for (tag = mPlugins; tag; tag = tag->mNext) {
1.1578 + if (tag == aPluginTag) {
1.1579 + return true;
1.1580 + }
1.1581 + }
1.1582 + return false;
1.1583 +}
1.1584 +
1.1585 +nsPluginTag*
1.1586 +nsPluginHost::HaveSamePlugin(const nsPluginTag* aPluginTag)
1.1587 +{
1.1588 + for (nsPluginTag* tag = mPlugins; tag; tag = tag->mNext) {
1.1589 + if (tag->HasSameNameAndMimes(aPluginTag)) {
1.1590 + return tag;
1.1591 + }
1.1592 + }
1.1593 + return nullptr;
1.1594 +}
1.1595 +
1.1596 +nsPluginTag*
1.1597 +nsPluginHost::FirstPluginWithPath(const nsCString& path)
1.1598 +{
1.1599 + for (nsPluginTag* tag = mPlugins; tag; tag = tag->mNext) {
1.1600 + if (tag->mFullPath.Equals(path)) {
1.1601 + return tag;
1.1602 + }
1.1603 + }
1.1604 + return nullptr;
1.1605 +}
1.1606 +
1.1607 +namespace {
1.1608 +
1.1609 +int64_t GetPluginLastModifiedTime(const nsCOMPtr<nsIFile>& localfile)
1.1610 +{
1.1611 + PRTime fileModTime = 0;
1.1612 +
1.1613 +#if defined(XP_MACOSX)
1.1614 + // On OS X the date of a bundle's "contents" (i.e. of its Info.plist file)
1.1615 + // is a much better guide to when it was last modified than the date of
1.1616 + // its package directory. See bug 313700.
1.1617 + nsCOMPtr<nsILocalFileMac> localFileMac = do_QueryInterface(localfile);
1.1618 + if (localFileMac) {
1.1619 + localFileMac->GetBundleContentsLastModifiedTime(&fileModTime);
1.1620 + } else {
1.1621 + localfile->GetLastModifiedTime(&fileModTime);
1.1622 + }
1.1623 +#else
1.1624 + localfile->GetLastModifiedTime(&fileModTime);
1.1625 +#endif
1.1626 +
1.1627 + return fileModTime;
1.1628 +}
1.1629 +
1.1630 +bool
1.1631 +GetPluginIsFromExtension(const nsCOMPtr<nsIFile>& pluginFile,
1.1632 + const nsCOMArray<nsIFile>& extensionDirs)
1.1633 +{
1.1634 + for (uint32_t i = 0; i < extensionDirs.Length(); ++i) {
1.1635 + bool contains;
1.1636 + if (NS_FAILED(extensionDirs[i]->Contains(pluginFile, true, &contains)) || !contains) {
1.1637 + continue;
1.1638 + }
1.1639 +
1.1640 + return true;
1.1641 + }
1.1642 +
1.1643 + return false;
1.1644 +}
1.1645 +
1.1646 +void
1.1647 +GetExtensionDirectories(nsCOMArray<nsIFile>& dirs)
1.1648 +{
1.1649 + nsCOMPtr<nsIProperties> dirService = do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID);
1.1650 + if (!dirService) {
1.1651 + return;
1.1652 + }
1.1653 +
1.1654 + nsCOMPtr<nsISimpleEnumerator> list;
1.1655 + nsresult rv = dirService->Get(XRE_EXTENSIONS_DIR_LIST,
1.1656 + NS_GET_IID(nsISimpleEnumerator),
1.1657 + getter_AddRefs(list));
1.1658 + if (NS_FAILED(rv)) {
1.1659 + return;
1.1660 + }
1.1661 +
1.1662 + bool more;
1.1663 + while (NS_SUCCEEDED(list->HasMoreElements(&more)) && more) {
1.1664 + nsCOMPtr<nsISupports> next;
1.1665 + if (NS_FAILED(list->GetNext(getter_AddRefs(next)))) {
1.1666 + break;
1.1667 + }
1.1668 + nsCOMPtr<nsIFile> file = do_QueryInterface(next);
1.1669 + if (file) {
1.1670 + file->Normalize();
1.1671 + dirs.AppendElement(file);
1.1672 + }
1.1673 + }
1.1674 +}
1.1675 +
1.1676 +struct CompareFilesByTime
1.1677 +{
1.1678 + bool
1.1679 + LessThan(const nsCOMPtr<nsIFile>& a, const nsCOMPtr<nsIFile>& b) const
1.1680 + {
1.1681 + return GetPluginLastModifiedTime(a) < GetPluginLastModifiedTime(b);
1.1682 + }
1.1683 +
1.1684 + bool
1.1685 + Equals(const nsCOMPtr<nsIFile>& a, const nsCOMPtr<nsIFile>& b) const
1.1686 + {
1.1687 + return GetPluginLastModifiedTime(a) == GetPluginLastModifiedTime(b);
1.1688 + }
1.1689 +};
1.1690 +
1.1691 +} // anonymous namespace
1.1692 +
1.1693 +PRBool nsPluginHost::GhettoBlacklist(nsIFile *pluginFile)
1.1694 +{
1.1695 + nsCString leaf;
1.1696 + const char *leafStr;
1.1697 + nsresult rv;
1.1698 +
1.1699 + rv = pluginFile->GetNativeLeafName(leaf);
1.1700 + if (NS_FAILED(rv)) {
1.1701 + return PR_TRUE; // fuck 'em. blacklist.
1.1702 + }
1.1703 +
1.1704 + leafStr = leaf.get();
1.1705 +
1.1706 + if (!leafStr) {
1.1707 + return PR_TRUE; // fuck 'em. blacklist.
1.1708 + }
1.1709 +
1.1710 + // libgnashplugin.so, libflashplayer.so, Flash Player-10.4-10.5.plugin,
1.1711 + // NPSWF32.dll, NPSWF64.dll
1.1712 + if (strstr(leafStr, "libgnashplugin") == leafStr ||
1.1713 + strstr(leafStr, "libflashplayer") == leafStr ||
1.1714 + strstr(leafStr, "Flash Player") == leafStr ||
1.1715 + strstr(leafStr, "NPSWF") == leafStr) {
1.1716 + return PR_FALSE;
1.1717 + }
1.1718 +
1.1719 + return PR_TRUE; // fuck 'em. blacklist.
1.1720 +}
1.1721 +
1.1722 +typedef NS_NPAPIPLUGIN_CALLBACK(char *, NP_GETMIMEDESCRIPTION)(void);
1.1723 +
1.1724 +nsresult nsPluginHost::ScanPluginsDirectory(nsIFile *pluginsDir,
1.1725 + bool aCreatePluginList,
1.1726 + bool *aPluginsChanged)
1.1727 +{
1.1728 + NS_ENSURE_ARG_POINTER(aPluginsChanged);
1.1729 + nsresult rv;
1.1730 +
1.1731 + *aPluginsChanged = false;
1.1732 +
1.1733 +#ifdef PLUGIN_LOGGING
1.1734 + nsAutoCString dirPath;
1.1735 + pluginsDir->GetNativePath(dirPath);
1.1736 + PLUGIN_LOG(PLUGIN_LOG_BASIC,
1.1737 + ("nsPluginHost::ScanPluginsDirectory dir=%s\n", dirPath.get()));
1.1738 +#endif
1.1739 +
1.1740 + nsCOMPtr<nsISimpleEnumerator> iter;
1.1741 + rv = pluginsDir->GetDirectoryEntries(getter_AddRefs(iter));
1.1742 + if (NS_FAILED(rv))
1.1743 + return rv;
1.1744 +
1.1745 + nsAutoTArray<nsCOMPtr<nsIFile>, 6> pluginFiles;
1.1746 +
1.1747 + bool hasMore;
1.1748 + while (NS_SUCCEEDED(iter->HasMoreElements(&hasMore)) && hasMore) {
1.1749 + nsCOMPtr<nsISupports> supports;
1.1750 + rv = iter->GetNext(getter_AddRefs(supports));
1.1751 + if (NS_FAILED(rv))
1.1752 + continue;
1.1753 + nsCOMPtr<nsIFile> dirEntry(do_QueryInterface(supports, &rv));
1.1754 + if (NS_FAILED(rv))
1.1755 + continue;
1.1756 +
1.1757 + // Sun's JRE 1.3.1 plugin must have symbolic links resolved or else it'll crash.
1.1758 + // See bug 197855.
1.1759 + dirEntry->Normalize();
1.1760 +
1.1761 + if (nsPluginsDir::IsPluginFile(dirEntry)) {
1.1762 + pluginFiles.AppendElement(dirEntry);
1.1763 + }
1.1764 + }
1.1765 +
1.1766 + pluginFiles.Sort(CompareFilesByTime());
1.1767 +
1.1768 + nsCOMArray<nsIFile> extensionDirs;
1.1769 + GetExtensionDirectories(extensionDirs);
1.1770 +
1.1771 + bool warnOutdated = false;
1.1772 +
1.1773 + for (int32_t i = (pluginFiles.Length() - 1); i >= 0; i--) {
1.1774 + nsCOMPtr<nsIFile>& localfile = pluginFiles[i];
1.1775 +
1.1776 + nsString utf16FilePath;
1.1777 + rv = localfile->GetPath(utf16FilePath);
1.1778 + if (NS_FAILED(rv))
1.1779 + continue;
1.1780 +
1.1781 + const int64_t fileModTime = GetPluginLastModifiedTime(localfile);
1.1782 + const bool fromExtension = GetPluginIsFromExtension(localfile, extensionDirs);
1.1783 +
1.1784 + // Look for it in our cache
1.1785 + NS_ConvertUTF16toUTF8 filePath(utf16FilePath);
1.1786 + nsRefPtr<nsPluginTag> pluginTag;
1.1787 + RemoveCachedPluginsInfo(filePath.get(), getter_AddRefs(pluginTag));
1.1788 +
1.1789 + bool seenBefore = false;
1.1790 +
1.1791 + if (pluginTag) {
1.1792 + seenBefore = true;
1.1793 + // If plugin changed, delete cachedPluginTag and don't use cache
1.1794 + if (fileModTime != pluginTag->mLastModifiedTime) {
1.1795 + // Plugins has changed. Don't use cached plugin info.
1.1796 + pluginTag = nullptr;
1.1797 +
1.1798 + // plugin file changed, flag this fact
1.1799 + *aPluginsChanged = true;
1.1800 + }
1.1801 +
1.1802 + // If we're not creating a list and we already know something changed then
1.1803 + // we're done.
1.1804 + if (!aCreatePluginList) {
1.1805 + if (*aPluginsChanged) {
1.1806 + return NS_OK;
1.1807 + }
1.1808 + continue;
1.1809 + }
1.1810 + }
1.1811 +
1.1812 + bool isKnownInvalidPlugin = false;
1.1813 + for (nsRefPtr<nsInvalidPluginTag> invalidPlugins = mInvalidPlugins;
1.1814 + invalidPlugins; invalidPlugins = invalidPlugins->mNext) {
1.1815 + // If already marked as invalid, ignore it
1.1816 + if (invalidPlugins->mFullPath.Equals(filePath.get()) &&
1.1817 + invalidPlugins->mLastModifiedTime == fileModTime) {
1.1818 + if (aCreatePluginList) {
1.1819 + invalidPlugins->mSeen = true;
1.1820 + }
1.1821 + isKnownInvalidPlugin = true;
1.1822 + break;
1.1823 + }
1.1824 + }
1.1825 + if (isKnownInvalidPlugin) {
1.1826 + continue;
1.1827 + }
1.1828 +
1.1829 + if (GhettoBlacklist(localfile)) {
1.1830 + continue;
1.1831 + }
1.1832 +
1.1833 + // if it is not found in cache info list or has been changed, create a new one
1.1834 + if (!pluginTag) {
1.1835 + nsPluginFile pluginFile(localfile);
1.1836 +
1.1837 + // create a tag describing this plugin.
1.1838 + PRLibrary *library = nullptr;
1.1839 + nsPluginInfo info;
1.1840 + memset(&info, 0, sizeof(info));
1.1841 + nsresult res;
1.1842 + // Opening a block for the telemetry AutoTimer
1.1843 + {
1.1844 + Telemetry::AutoTimer<Telemetry::PLUGIN_LOAD_METADATA> telemetry;
1.1845 + res = pluginFile.GetPluginInfo(info, &library);
1.1846 + }
1.1847 + // if we don't have mime type don't proceed, this is not a plugin
1.1848 + if (NS_FAILED(res) || !info.fMimeTypeArray) {
1.1849 + nsRefPtr<nsInvalidPluginTag> invalidTag = new nsInvalidPluginTag(filePath.get(),
1.1850 + fileModTime);
1.1851 + pluginFile.FreePluginInfo(info);
1.1852 +
1.1853 + if (aCreatePluginList) {
1.1854 + invalidTag->mSeen = true;
1.1855 + }
1.1856 + invalidTag->mNext = mInvalidPlugins;
1.1857 + if (mInvalidPlugins) {
1.1858 + mInvalidPlugins->mPrev = invalidTag;
1.1859 + }
1.1860 + mInvalidPlugins = invalidTag;
1.1861 +
1.1862 + // Mark aPluginsChanged so pluginreg is rewritten
1.1863 + *aPluginsChanged = true;
1.1864 + continue;
1.1865 + }
1.1866 +
1.1867 + pluginTag = new nsPluginTag(&info, fileModTime, fromExtension);
1.1868 + pluginFile.FreePluginInfo(info);
1.1869 + if (!pluginTag)
1.1870 + return NS_ERROR_OUT_OF_MEMORY;
1.1871 +
1.1872 + pluginTag->mLibrary = library;
1.1873 + uint32_t state = pluginTag->GetBlocklistState();
1.1874 +
1.1875 + // If the blocklist says it is risky and we have never seen this
1.1876 + // plugin before, then disable it.
1.1877 + // If the blocklist says this is an outdated plugin, warn about
1.1878 + // outdated plugins.
1.1879 + if (state == nsIBlocklistService::STATE_SOFTBLOCKED && !seenBefore) {
1.1880 + pluginTag->SetEnabledState(nsIPluginTag::STATE_DISABLED);
1.1881 + }
1.1882 + if (state == nsIBlocklistService::STATE_OUTDATED && !seenBefore) {
1.1883 + warnOutdated = true;
1.1884 + }
1.1885 +
1.1886 + // Plugin unloading is tag-based. If we created a new tag and loaded
1.1887 + // the library in the process then we want to attempt to unload it here.
1.1888 + // Only do this if the pref is set for aggressive unloading.
1.1889 + if (UnloadPluginsASAP()) {
1.1890 + pluginTag->TryUnloadPlugin(false);
1.1891 + }
1.1892 + }
1.1893 +
1.1894 + // do it if we still want it
1.1895 + if (!seenBefore) {
1.1896 + // We have a valid new plugin so report that plugins have changed.
1.1897 + *aPluginsChanged = true;
1.1898 + }
1.1899 +
1.1900 + // Avoid adding different versions of the same plugin if they are running
1.1901 + // in-process, otherwise we risk undefined behaviour.
1.1902 + if (!nsNPAPIPlugin::RunPluginOOP(pluginTag)) {
1.1903 + if (HaveSamePlugin(pluginTag)) {
1.1904 + continue;
1.1905 + }
1.1906 + }
1.1907 +
1.1908 + // Don't add the same plugin again if it hasn't changed
1.1909 + if (nsPluginTag* duplicate = FirstPluginWithPath(pluginTag->mFullPath)) {
1.1910 + if (pluginTag->mLastModifiedTime == duplicate->mLastModifiedTime) {
1.1911 + continue;
1.1912 + }
1.1913 + }
1.1914 +
1.1915 + // If we're not creating a plugin list, simply looking for changes,
1.1916 + // then we're done.
1.1917 + if (!aCreatePluginList) {
1.1918 + return NS_OK;
1.1919 + }
1.1920 +
1.1921 + // Add plugin tags such that the list is ordered by modification date,
1.1922 + // newest to oldest. This is ugly, it'd be easier with just about anything
1.1923 + // other than a single-directional linked list.
1.1924 + if (mPlugins) {
1.1925 + nsPluginTag *prev = nullptr;
1.1926 + nsPluginTag *next = mPlugins;
1.1927 + while (next) {
1.1928 + if (pluginTag->mLastModifiedTime >= next->mLastModifiedTime) {
1.1929 + pluginTag->mNext = next;
1.1930 + if (prev) {
1.1931 + prev->mNext = pluginTag;
1.1932 + } else {
1.1933 + mPlugins = pluginTag;
1.1934 + }
1.1935 + break;
1.1936 + }
1.1937 + prev = next;
1.1938 + next = prev->mNext;
1.1939 + if (!next) {
1.1940 + prev->mNext = pluginTag;
1.1941 + }
1.1942 + }
1.1943 + } else {
1.1944 + mPlugins = pluginTag;
1.1945 + }
1.1946 +
1.1947 + if (pluginTag->IsActive()) {
1.1948 + nsAdoptingCString disableFullPage =
1.1949 + Preferences::GetCString(kPrefDisableFullPage);
1.1950 + for (uint32_t i = 0; i < pluginTag->mMimeTypes.Length(); i++) {
1.1951 + if (!IsTypeInList(pluginTag->mMimeTypes[i], disableFullPage)) {
1.1952 + RegisterWithCategoryManager(pluginTag->mMimeTypes[i],
1.1953 + ePluginRegister);
1.1954 + }
1.1955 + }
1.1956 + }
1.1957 + }
1.1958 +
1.1959 + if (warnOutdated) {
1.1960 + Preferences::SetBool("plugins.update.notifyUser", true);
1.1961 + }
1.1962 +
1.1963 + return NS_OK;
1.1964 +}
1.1965 +
1.1966 +nsresult nsPluginHost::ScanPluginsDirectoryList(nsISimpleEnumerator *dirEnum,
1.1967 + bool aCreatePluginList,
1.1968 + bool *aPluginsChanged)
1.1969 +{
1.1970 + bool hasMore;
1.1971 + while (NS_SUCCEEDED(dirEnum->HasMoreElements(&hasMore)) && hasMore) {
1.1972 + nsCOMPtr<nsISupports> supports;
1.1973 + nsresult rv = dirEnum->GetNext(getter_AddRefs(supports));
1.1974 + if (NS_FAILED(rv))
1.1975 + continue;
1.1976 + nsCOMPtr<nsIFile> nextDir(do_QueryInterface(supports, &rv));
1.1977 + if (NS_FAILED(rv))
1.1978 + continue;
1.1979 +
1.1980 + // don't pass aPluginsChanged directly to prevent it from been reset
1.1981 + bool pluginschanged = false;
1.1982 + ScanPluginsDirectory(nextDir, aCreatePluginList, &pluginschanged);
1.1983 +
1.1984 + if (pluginschanged)
1.1985 + *aPluginsChanged = true;
1.1986 +
1.1987 + // if changes are detected and we are not creating the list, do not proceed
1.1988 + if (!aCreatePluginList && *aPluginsChanged)
1.1989 + break;
1.1990 + }
1.1991 + return NS_OK;
1.1992 +}
1.1993 +
1.1994 +nsresult nsPluginHost::LoadPlugins()
1.1995 +{
1.1996 +#ifdef ANDROID
1.1997 + if (XRE_GetProcessType() == GeckoProcessType_Content) {
1.1998 + return NS_OK;
1.1999 + }
1.2000 +#endif
1.2001 + // do not do anything if it is already done
1.2002 + // use ReloadPlugins() to enforce loading
1.2003 + if (mPluginsLoaded)
1.2004 + return NS_OK;
1.2005 +
1.2006 + if (mPluginsDisabled)
1.2007 + return NS_OK;
1.2008 +
1.2009 + bool pluginschanged;
1.2010 + nsresult rv = FindPlugins(true, &pluginschanged);
1.2011 + if (NS_FAILED(rv))
1.2012 + return rv;
1.2013 +
1.2014 + // only if plugins have changed will we notify plugin-change observers
1.2015 + if (pluginschanged) {
1.2016 + nsCOMPtr<nsIObserverService> obsService =
1.2017 + mozilla::services::GetObserverService();
1.2018 + if (obsService)
1.2019 + obsService->NotifyObservers(nullptr, "plugins-list-updated", nullptr);
1.2020 + }
1.2021 +
1.2022 + return NS_OK;
1.2023 +}
1.2024 +
1.2025 +// if aCreatePluginList is false we will just scan for plugins
1.2026 +// and see if any changes have been made to the plugins.
1.2027 +// This is needed in ReloadPlugins to prevent possible recursive reloads
1.2028 +nsresult nsPluginHost::FindPlugins(bool aCreatePluginList, bool * aPluginsChanged)
1.2029 +{
1.2030 + Telemetry::AutoTimer<Telemetry::FIND_PLUGINS> telemetry;
1.2031 +
1.2032 + NS_ENSURE_ARG_POINTER(aPluginsChanged);
1.2033 +
1.2034 + *aPluginsChanged = false;
1.2035 + nsresult rv;
1.2036 +
1.2037 + // Read cached plugins info. If the profile isn't yet available then don't
1.2038 + // scan for plugins
1.2039 + if (ReadPluginInfo() == NS_ERROR_NOT_AVAILABLE)
1.2040 + return NS_OK;
1.2041 +
1.2042 +#ifdef XP_WIN
1.2043 + // Failure here is not a show-stopper so just warn.
1.2044 + rv = EnsurePrivateDirServiceProvider();
1.2045 + NS_ASSERTION(NS_SUCCEEDED(rv), "Failed to register dir service provider.");
1.2046 +#endif /* XP_WIN */
1.2047 +
1.2048 + nsCOMPtr<nsIProperties> dirService(do_GetService(kDirectoryServiceContractID, &rv));
1.2049 + if (NS_FAILED(rv))
1.2050 + return rv;
1.2051 +
1.2052 + nsCOMPtr<nsISimpleEnumerator> dirList;
1.2053 +
1.2054 + // Scan plugins directories;
1.2055 + // don't pass aPluginsChanged directly, to prevent its
1.2056 + // possible reset in subsequent ScanPluginsDirectory calls
1.2057 + bool pluginschanged = false;
1.2058 +
1.2059 + // Scan the app-defined list of plugin dirs.
1.2060 + rv = dirService->Get(NS_APP_PLUGINS_DIR_LIST, NS_GET_IID(nsISimpleEnumerator), getter_AddRefs(dirList));
1.2061 + if (NS_SUCCEEDED(rv)) {
1.2062 + ScanPluginsDirectoryList(dirList, aCreatePluginList, &pluginschanged);
1.2063 +
1.2064 + if (pluginschanged)
1.2065 + *aPluginsChanged = true;
1.2066 +
1.2067 + // if we are just looking for possible changes,
1.2068 + // no need to proceed if changes are detected
1.2069 + if (!aCreatePluginList && *aPluginsChanged) {
1.2070 + NS_ITERATIVE_UNREF_LIST(nsRefPtr<nsPluginTag>, mCachedPlugins, mNext);
1.2071 + NS_ITERATIVE_UNREF_LIST(nsRefPtr<nsInvalidPluginTag>, mInvalidPlugins, mNext);
1.2072 + return NS_OK;
1.2073 + }
1.2074 + } else {
1.2075 +#ifdef ANDROID
1.2076 + LOG("getting plugins dir failed");
1.2077 +#endif
1.2078 + }
1.2079 +
1.2080 + mPluginsLoaded = true; // at this point 'some' plugins have been loaded,
1.2081 + // the rest is optional
1.2082 +
1.2083 +#ifdef XP_WIN
1.2084 + bool bScanPLIDs = Preferences::GetBool("plugin.scan.plid.all", false);
1.2085 +
1.2086 + // Now lets scan any PLID directories
1.2087 + if (bScanPLIDs && mPrivateDirServiceProvider) {
1.2088 + rv = mPrivateDirServiceProvider->GetPLIDDirectories(getter_AddRefs(dirList));
1.2089 + if (NS_SUCCEEDED(rv)) {
1.2090 + ScanPluginsDirectoryList(dirList, aCreatePluginList, &pluginschanged);
1.2091 +
1.2092 + if (pluginschanged)
1.2093 + *aPluginsChanged = true;
1.2094 +
1.2095 + // if we are just looking for possible changes,
1.2096 + // no need to proceed if changes are detected
1.2097 + if (!aCreatePluginList && *aPluginsChanged) {
1.2098 + NS_ITERATIVE_UNREF_LIST(nsRefPtr<nsPluginTag>, mCachedPlugins, mNext);
1.2099 + NS_ITERATIVE_UNREF_LIST(nsRefPtr<nsInvalidPluginTag>, mInvalidPlugins, mNext);
1.2100 + return NS_OK;
1.2101 + }
1.2102 + }
1.2103 + }
1.2104 +
1.2105 +
1.2106 + // Scan the installation paths of our popular plugins if the prefs are enabled
1.2107 +
1.2108 + // This table controls the order of scanning
1.2109 + const char* const prefs[] = {NS_WIN_ACROBAT_SCAN_KEY,
1.2110 + NS_WIN_QUICKTIME_SCAN_KEY,
1.2111 + NS_WIN_WMP_SCAN_KEY};
1.2112 +
1.2113 + uint32_t size = sizeof(prefs) / sizeof(prefs[0]);
1.2114 +
1.2115 + for (uint32_t i = 0; i < size; i+=1) {
1.2116 + nsCOMPtr<nsIFile> dirToScan;
1.2117 + bool bExists;
1.2118 + if (NS_SUCCEEDED(dirService->Get(prefs[i], NS_GET_IID(nsIFile), getter_AddRefs(dirToScan))) &&
1.2119 + dirToScan &&
1.2120 + NS_SUCCEEDED(dirToScan->Exists(&bExists)) &&
1.2121 + bExists) {
1.2122 +
1.2123 + ScanPluginsDirectory(dirToScan, aCreatePluginList, &pluginschanged);
1.2124 +
1.2125 + if (pluginschanged)
1.2126 + *aPluginsChanged = true;
1.2127 +
1.2128 + // if we are just looking for possible changes,
1.2129 + // no need to proceed if changes are detected
1.2130 + if (!aCreatePluginList && *aPluginsChanged) {
1.2131 + NS_ITERATIVE_UNREF_LIST(nsRefPtr<nsPluginTag>, mCachedPlugins, mNext);
1.2132 + NS_ITERATIVE_UNREF_LIST(nsRefPtr<nsInvalidPluginTag>, mInvalidPlugins, mNext);
1.2133 + return NS_OK;
1.2134 + }
1.2135 + }
1.2136 + }
1.2137 +#endif
1.2138 +
1.2139 + // We should also consider plugins to have changed if any plugins have been removed.
1.2140 + // We'll know if any were removed if they weren't taken out of the cached plugins list
1.2141 + // during our scan, thus we can assume something was removed if the cached plugins list
1.2142 + // contains anything.
1.2143 + if (!*aPluginsChanged && mCachedPlugins) {
1.2144 + *aPluginsChanged = true;
1.2145 + }
1.2146 +
1.2147 + // Remove unseen invalid plugins
1.2148 + nsRefPtr<nsInvalidPluginTag> invalidPlugins = mInvalidPlugins;
1.2149 + while (invalidPlugins) {
1.2150 + if (!invalidPlugins->mSeen) {
1.2151 + nsRefPtr<nsInvalidPluginTag> invalidPlugin = invalidPlugins;
1.2152 +
1.2153 + if (invalidPlugin->mPrev) {
1.2154 + invalidPlugin->mPrev->mNext = invalidPlugin->mNext;
1.2155 + }
1.2156 + else {
1.2157 + mInvalidPlugins = invalidPlugin->mNext;
1.2158 + }
1.2159 + if (invalidPlugin->mNext) {
1.2160 + invalidPlugin->mNext->mPrev = invalidPlugin->mPrev;
1.2161 + }
1.2162 +
1.2163 + invalidPlugins = invalidPlugin->mNext;
1.2164 +
1.2165 + invalidPlugin->mPrev = nullptr;
1.2166 + invalidPlugin->mNext = nullptr;
1.2167 + }
1.2168 + else {
1.2169 + invalidPlugins->mSeen = false;
1.2170 + invalidPlugins = invalidPlugins->mNext;
1.2171 + }
1.2172 + }
1.2173 +
1.2174 + // if we are not creating the list, there is no need to proceed
1.2175 + if (!aCreatePluginList) {
1.2176 + NS_ITERATIVE_UNREF_LIST(nsRefPtr<nsPluginTag>, mCachedPlugins, mNext);
1.2177 + NS_ITERATIVE_UNREF_LIST(nsRefPtr<nsInvalidPluginTag>, mInvalidPlugins, mNext);
1.2178 + return NS_OK;
1.2179 + }
1.2180 +
1.2181 + // if we are creating the list, it is already done;
1.2182 + // update the plugins info cache if changes are detected
1.2183 + if (*aPluginsChanged)
1.2184 + WritePluginInfo();
1.2185 +
1.2186 + // No more need for cached plugins. Clear it up.
1.2187 + NS_ITERATIVE_UNREF_LIST(nsRefPtr<nsPluginTag>, mCachedPlugins, mNext);
1.2188 + NS_ITERATIVE_UNREF_LIST(nsRefPtr<nsInvalidPluginTag>, mInvalidPlugins, mNext);
1.2189 +
1.2190 + return NS_OK;
1.2191 +}
1.2192 +
1.2193 +nsresult
1.2194 +nsPluginHost::UpdatePluginInfo(nsPluginTag* aPluginTag)
1.2195 +{
1.2196 + ReadPluginInfo();
1.2197 + WritePluginInfo();
1.2198 + NS_ITERATIVE_UNREF_LIST(nsRefPtr<nsPluginTag>, mCachedPlugins, mNext);
1.2199 + NS_ITERATIVE_UNREF_LIST(nsRefPtr<nsInvalidPluginTag>, mInvalidPlugins, mNext);
1.2200 +
1.2201 + if (!aPluginTag) {
1.2202 + return NS_OK;
1.2203 + }
1.2204 +
1.2205 + // Update types with category manager
1.2206 + nsAdoptingCString disableFullPage =
1.2207 + Preferences::GetCString(kPrefDisableFullPage);
1.2208 + for (uint32_t i = 0; i < aPluginTag->mMimeTypes.Length(); i++) {
1.2209 + nsRegisterType shouldRegister;
1.2210 +
1.2211 + if (IsTypeInList(aPluginTag->mMimeTypes[i], disableFullPage)) {
1.2212 + shouldRegister = ePluginUnregister;
1.2213 + } else {
1.2214 + nsPluginTag *plugin = FindPluginForType(aPluginTag->mMimeTypes[i].get(),
1.2215 + true);
1.2216 + shouldRegister = plugin ? ePluginRegister : ePluginUnregister;
1.2217 + }
1.2218 +
1.2219 + RegisterWithCategoryManager(aPluginTag->mMimeTypes[i], shouldRegister);
1.2220 + }
1.2221 +
1.2222 + nsCOMPtr<nsIObserverService> obsService =
1.2223 + mozilla::services::GetObserverService();
1.2224 + if (obsService)
1.2225 + obsService->NotifyObservers(nullptr, "plugin-info-updated", nullptr);
1.2226 +
1.2227 + // Reload instances if needed
1.2228 + if (aPluginTag->IsActive()) {
1.2229 + return NS_OK;
1.2230 + }
1.2231 +
1.2232 + return NS_OK;
1.2233 +}
1.2234 +
1.2235 +/* static */ bool
1.2236 +nsPluginHost::IsTypeWhitelisted(const char *aMimeType)
1.2237 +{
1.2238 + nsAdoptingCString whitelist = Preferences::GetCString(kPrefWhitelist);
1.2239 + if (!whitelist.Length()) {
1.2240 + return true;
1.2241 + }
1.2242 + nsDependentCString wrap(aMimeType);
1.2243 + return IsTypeInList(wrap, whitelist);
1.2244 +}
1.2245 +
1.2246 +void
1.2247 +nsPluginHost::RegisterWithCategoryManager(nsCString &aMimeType,
1.2248 + nsRegisterType aType)
1.2249 +{
1.2250 + PLUGIN_LOG(PLUGIN_LOG_NORMAL,
1.2251 + ("nsPluginTag::RegisterWithCategoryManager type = %s, removing = %s\n",
1.2252 + aMimeType.get(), aType == ePluginUnregister ? "yes" : "no"));
1.2253 +
1.2254 + nsCOMPtr<nsICategoryManager> catMan =
1.2255 + do_GetService(NS_CATEGORYMANAGER_CONTRACTID);
1.2256 + if (!catMan) {
1.2257 + return;
1.2258 + }
1.2259 +
1.2260 + const char *contractId =
1.2261 + "@mozilla.org/content/plugin/document-loader-factory;1";
1.2262 +
1.2263 + if (aType == ePluginRegister) {
1.2264 + catMan->AddCategoryEntry("Gecko-Content-Viewers",
1.2265 + aMimeType.get(),
1.2266 + contractId,
1.2267 + false, /* persist: broken by bug 193031 */
1.2268 + mOverrideInternalTypes,
1.2269 + nullptr);
1.2270 + } else {
1.2271 + // Only delete the entry if a plugin registered for it
1.2272 + nsXPIDLCString value;
1.2273 + nsresult rv = catMan->GetCategoryEntry("Gecko-Content-Viewers",
1.2274 + aMimeType.get(),
1.2275 + getter_Copies(value));
1.2276 + if (NS_SUCCEEDED(rv) && strcmp(value, contractId) == 0) {
1.2277 + catMan->DeleteCategoryEntry("Gecko-Content-Viewers",
1.2278 + aMimeType.get(),
1.2279 + true);
1.2280 + }
1.2281 + }
1.2282 +}
1.2283 +
1.2284 +nsresult
1.2285 +nsPluginHost::WritePluginInfo()
1.2286 +{
1.2287 +
1.2288 + nsresult rv = NS_OK;
1.2289 + nsCOMPtr<nsIProperties> directoryService(do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID,&rv));
1.2290 + if (NS_FAILED(rv))
1.2291 + return rv;
1.2292 +
1.2293 + directoryService->Get(NS_APP_USER_PROFILE_50_DIR, NS_GET_IID(nsIFile),
1.2294 + getter_AddRefs(mPluginRegFile));
1.2295 +
1.2296 + if (!mPluginRegFile)
1.2297 + return NS_ERROR_FAILURE;
1.2298 +
1.2299 + PRFileDesc* fd = nullptr;
1.2300 +
1.2301 + nsCOMPtr<nsIFile> pluginReg;
1.2302 +
1.2303 + rv = mPluginRegFile->Clone(getter_AddRefs(pluginReg));
1.2304 + if (NS_FAILED(rv))
1.2305 + return rv;
1.2306 +
1.2307 + nsAutoCString filename(kPluginRegistryFilename);
1.2308 + filename.Append(".tmp");
1.2309 + rv = pluginReg->AppendNative(filename);
1.2310 + if (NS_FAILED(rv))
1.2311 + return rv;
1.2312 +
1.2313 + rv = pluginReg->OpenNSPRFileDesc(PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE, 0600, &fd);
1.2314 + if (NS_FAILED(rv))
1.2315 + return rv;
1.2316 +
1.2317 + nsCOMPtr<nsIXULRuntime> runtime = do_GetService("@mozilla.org/xre/runtime;1");
1.2318 + if (!runtime) {
1.2319 + return NS_ERROR_FAILURE;
1.2320 + }
1.2321 +
1.2322 + nsAutoCString arch;
1.2323 + rv = runtime->GetXPCOMABI(arch);
1.2324 + if (NS_FAILED(rv)) {
1.2325 + return rv;
1.2326 + }
1.2327 +
1.2328 + PR_fprintf(fd, "Generated File. Do not edit.\n");
1.2329 +
1.2330 + PR_fprintf(fd, "\n[HEADER]\nVersion%c%s%c%c\nArch%c%s%c%c\n",
1.2331 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2332 + kPluginRegistryVersion,
1.2333 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2334 + PLUGIN_REGISTRY_END_OF_LINE_MARKER,
1.2335 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2336 + arch.get(),
1.2337 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2338 + PLUGIN_REGISTRY_END_OF_LINE_MARKER);
1.2339 +
1.2340 + // Store all plugins in the mPlugins list - all plugins currently in use.
1.2341 + PR_fprintf(fd, "\n[PLUGINS]\n");
1.2342 +
1.2343 + for (nsPluginTag *tag = mPlugins; tag; tag = tag->mNext) {
1.2344 + // store each plugin info into the registry
1.2345 + // filename & fullpath are on separate line
1.2346 + // because they can contain field delimiter char
1.2347 + PR_fprintf(fd, "%s%c%c\n%s%c%c\n%s%c%c\n",
1.2348 + (tag->mFileName.get()),
1.2349 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2350 + PLUGIN_REGISTRY_END_OF_LINE_MARKER,
1.2351 + (tag->mFullPath.get()),
1.2352 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2353 + PLUGIN_REGISTRY_END_OF_LINE_MARKER,
1.2354 + (tag->mVersion.get()),
1.2355 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2356 + PLUGIN_REGISTRY_END_OF_LINE_MARKER);
1.2357 +
1.2358 + // lastModifiedTimeStamp|canUnload|tag->mFlags|fromExtension
1.2359 + PR_fprintf(fd, "%lld%c%d%c%lu%c%d%c%c\n",
1.2360 + tag->mLastModifiedTime,
1.2361 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2362 + false, // did store whether or not to unload in-process plugins
1.2363 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2364 + 0, // legacy field for flags
1.2365 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2366 + tag->IsFromExtension(),
1.2367 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2368 + PLUGIN_REGISTRY_END_OF_LINE_MARKER);
1.2369 +
1.2370 + //description, name & mtypecount are on separate line
1.2371 + PR_fprintf(fd, "%s%c%c\n%s%c%c\n%d\n",
1.2372 + (tag->mDescription.get()),
1.2373 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2374 + PLUGIN_REGISTRY_END_OF_LINE_MARKER,
1.2375 + (tag->mName.get()),
1.2376 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2377 + PLUGIN_REGISTRY_END_OF_LINE_MARKER,
1.2378 + tag->mMimeTypes.Length());
1.2379 +
1.2380 + // Add in each mimetype this plugin supports
1.2381 + for (uint32_t i = 0; i < tag->mMimeTypes.Length(); i++) {
1.2382 + PR_fprintf(fd, "%d%c%s%c%s%c%s%c%c\n",
1.2383 + i,PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2384 + (tag->mMimeTypes[i].get()),
1.2385 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2386 + (tag->mMimeDescriptions[i].get()),
1.2387 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2388 + (tag->mExtensions[i].get()),
1.2389 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2390 + PLUGIN_REGISTRY_END_OF_LINE_MARKER);
1.2391 + }
1.2392 + }
1.2393 +
1.2394 + PR_fprintf(fd, "\n[INVALID]\n");
1.2395 +
1.2396 + nsRefPtr<nsInvalidPluginTag> invalidPlugins = mInvalidPlugins;
1.2397 + while (invalidPlugins) {
1.2398 + // fullPath
1.2399 + PR_fprintf(fd, "%s%c%c\n",
1.2400 + (!invalidPlugins->mFullPath.IsEmpty() ? invalidPlugins->mFullPath.get() : ""),
1.2401 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2402 + PLUGIN_REGISTRY_END_OF_LINE_MARKER);
1.2403 +
1.2404 + // lastModifiedTimeStamp
1.2405 + PR_fprintf(fd, "%lld%c%c\n",
1.2406 + invalidPlugins->mLastModifiedTime,
1.2407 + PLUGIN_REGISTRY_FIELD_DELIMITER,
1.2408 + PLUGIN_REGISTRY_END_OF_LINE_MARKER);
1.2409 +
1.2410 + invalidPlugins = invalidPlugins->mNext;
1.2411 + }
1.2412 +
1.2413 + PRStatus prrc;
1.2414 + prrc = PR_Close(fd);
1.2415 + if (prrc != PR_SUCCESS) {
1.2416 + // we should obtain a refined value based on prrc;
1.2417 + rv = NS_ERROR_FAILURE;
1.2418 + MOZ_ASSERT(false, "PR_Close() failed.");
1.2419 + return rv;
1.2420 + }
1.2421 + nsCOMPtr<nsIFile> parent;
1.2422 + rv = pluginReg->GetParent(getter_AddRefs(parent));
1.2423 + NS_ENSURE_SUCCESS(rv, rv);
1.2424 + rv = pluginReg->MoveToNative(parent, kPluginRegistryFilename);
1.2425 + return rv;
1.2426 +}
1.2427 +
1.2428 +nsresult
1.2429 +nsPluginHost::ReadPluginInfo()
1.2430 +{
1.2431 + const long PLUGIN_REG_MIMETYPES_ARRAY_SIZE = 12;
1.2432 + const long PLUGIN_REG_MAX_MIMETYPES = 1000;
1.2433 +
1.2434 + // we need to import the legacy flags from the plugin registry once
1.2435 + const bool pluginStateImported =
1.2436 + Preferences::GetDefaultBool("plugin.importedState", false);
1.2437 +
1.2438 + nsresult rv;
1.2439 +
1.2440 + nsCOMPtr<nsIProperties> directoryService(do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID,&rv));
1.2441 + if (NS_FAILED(rv))
1.2442 + return rv;
1.2443 +
1.2444 + directoryService->Get(NS_APP_USER_PROFILE_50_DIR, NS_GET_IID(nsIFile),
1.2445 + getter_AddRefs(mPluginRegFile));
1.2446 +
1.2447 + if (!mPluginRegFile) {
1.2448 + // There is no profile yet, this will tell us if there is going to be one
1.2449 + // in the future.
1.2450 + directoryService->Get(NS_APP_PROFILE_DIR_STARTUP, NS_GET_IID(nsIFile),
1.2451 + getter_AddRefs(mPluginRegFile));
1.2452 + if (!mPluginRegFile)
1.2453 + return NS_ERROR_FAILURE;
1.2454 + else
1.2455 + return NS_ERROR_NOT_AVAILABLE;
1.2456 + }
1.2457 +
1.2458 + PRFileDesc* fd = nullptr;
1.2459 +
1.2460 + nsCOMPtr<nsIFile> pluginReg;
1.2461 +
1.2462 + rv = mPluginRegFile->Clone(getter_AddRefs(pluginReg));
1.2463 + if (NS_FAILED(rv))
1.2464 + return rv;
1.2465 +
1.2466 + rv = pluginReg->AppendNative(kPluginRegistryFilename);
1.2467 + if (NS_FAILED(rv))
1.2468 + return rv;
1.2469 +
1.2470 + int64_t fileSize;
1.2471 + rv = pluginReg->GetFileSize(&fileSize);
1.2472 + if (NS_FAILED(rv))
1.2473 + return rv;
1.2474 +
1.2475 + if (fileSize > INT32_MAX) {
1.2476 + return NS_ERROR_FAILURE;
1.2477 + }
1.2478 + int32_t flen = int32_t(fileSize);
1.2479 + if (flen == 0) {
1.2480 + NS_WARNING("Plugins Registry Empty!");
1.2481 + return NS_OK; // ERROR CONDITION
1.2482 + }
1.2483 +
1.2484 + nsPluginManifestLineReader reader;
1.2485 + char* registry = reader.Init(flen);
1.2486 + if (!registry)
1.2487 + return NS_ERROR_OUT_OF_MEMORY;
1.2488 +
1.2489 + rv = pluginReg->OpenNSPRFileDesc(PR_RDONLY, 0444, &fd);
1.2490 + if (NS_FAILED(rv))
1.2491 + return rv;
1.2492 +
1.2493 + // set rv to return an error on goto out
1.2494 + rv = NS_ERROR_FAILURE;
1.2495 +
1.2496 + int32_t bread = PR_Read(fd, registry, flen);
1.2497 +
1.2498 + PRStatus prrc;
1.2499 + prrc = PR_Close(fd);
1.2500 + if (prrc != PR_SUCCESS) {
1.2501 + // Strange error: this is one of those "Should not happen" error.
1.2502 + // we may want to report something more refined than NS_ERROR_FAILURE.
1.2503 + MOZ_ASSERT(false, "PR_Close() failed.");
1.2504 + return rv;
1.2505 + }
1.2506 +
1.2507 + if (flen > bread)
1.2508 + return rv;
1.2509 +
1.2510 + if (!ReadSectionHeader(reader, "HEADER"))
1.2511 + return rv;;
1.2512 +
1.2513 + if (!reader.NextLine())
1.2514 + return rv;
1.2515 +
1.2516 + char* values[6];
1.2517 +
1.2518 + // VersionLiteral, kPluginRegistryVersion
1.2519 + if (2 != reader.ParseLine(values, 2))
1.2520 + return rv;
1.2521 +
1.2522 + // VersionLiteral
1.2523 + if (PL_strcmp(values[0], "Version"))
1.2524 + return rv;
1.2525 +
1.2526 + // kPluginRegistryVersion
1.2527 + int32_t vdiff = mozilla::CompareVersions(values[1], kPluginRegistryVersion);
1.2528 + mozilla::Version version(values[1]);
1.2529 + // If this is a registry from some future version then don't attempt to read it
1.2530 + if (vdiff > 0)
1.2531 + return rv;
1.2532 + // If this is a registry from before the minimum then don't attempt to read it
1.2533 + if (version < kMinimumRegistryVersion)
1.2534 + return rv;
1.2535 +
1.2536 + // Registry v0.10 and upwards includes the plugin version field
1.2537 + bool regHasVersion = (version >= "0.10");
1.2538 +
1.2539 + // Registry v0.13 and upwards includes the architecture
1.2540 + if (version >= "0.13") {
1.2541 + char* archValues[6];
1.2542 +
1.2543 + if (!reader.NextLine()) {
1.2544 + return rv;
1.2545 + }
1.2546 +
1.2547 + // ArchLiteral, Architecture
1.2548 + if (2 != reader.ParseLine(archValues, 2)) {
1.2549 + return rv;
1.2550 + }
1.2551 +
1.2552 + // ArchLiteral
1.2553 + if (PL_strcmp(archValues[0], "Arch")) {
1.2554 + return rv;
1.2555 + }
1.2556 +
1.2557 + nsCOMPtr<nsIXULRuntime> runtime = do_GetService("@mozilla.org/xre/runtime;1");
1.2558 + if (!runtime) {
1.2559 + return rv;
1.2560 + }
1.2561 +
1.2562 + nsAutoCString arch;
1.2563 + if (NS_FAILED(runtime->GetXPCOMABI(arch))) {
1.2564 + return rv;
1.2565 + }
1.2566 +
1.2567 + // If this is a registry from a different architecture then don't attempt to read it
1.2568 + if (PL_strcmp(archValues[1], arch.get())) {
1.2569 + return rv;
1.2570 + }
1.2571 + }
1.2572 +
1.2573 + // Registry v0.13 and upwards includes the list of invalid plugins
1.2574 + const bool hasInvalidPlugins = (version >= "0.13");
1.2575 +
1.2576 + // Registry v0.16 and upwards always have 0 for their plugin flags, prefs are used instead
1.2577 + const bool hasValidFlags = (version < "0.16");
1.2578 +
1.2579 + // Registry v0.17 and upwards store whether the plugin comes from an XPI.
1.2580 + const bool hasFromExtension = (version >= "0.17");
1.2581 +
1.2582 +#if defined(XP_MACOSX)
1.2583 + const bool hasFullPathInFileNameField = false;
1.2584 +#else
1.2585 + const bool hasFullPathInFileNameField = (version < "0.11");
1.2586 +#endif
1.2587 +
1.2588 + if (!ReadSectionHeader(reader, "PLUGINS"))
1.2589 + return rv;
1.2590 +
1.2591 + while (reader.NextLine()) {
1.2592 + const char *filename;
1.2593 + const char *fullpath;
1.2594 + nsAutoCString derivedFileName;
1.2595 +
1.2596 + if (hasInvalidPlugins && *reader.LinePtr() == '[') {
1.2597 + break;
1.2598 + }
1.2599 +
1.2600 + if (hasFullPathInFileNameField) {
1.2601 + fullpath = reader.LinePtr();
1.2602 + if (!reader.NextLine())
1.2603 + return rv;
1.2604 + // try to derive a file name from the full path
1.2605 + if (fullpath) {
1.2606 + nsCOMPtr<nsIFile> file = do_CreateInstance("@mozilla.org/file/local;1");
1.2607 + file->InitWithNativePath(nsDependentCString(fullpath));
1.2608 + file->GetNativeLeafName(derivedFileName);
1.2609 + filename = derivedFileName.get();
1.2610 + } else {
1.2611 + filename = nullptr;
1.2612 + }
1.2613 +
1.2614 + // skip the next line, useless in this version
1.2615 + if (!reader.NextLine())
1.2616 + return rv;
1.2617 + } else {
1.2618 + filename = reader.LinePtr();
1.2619 + if (!reader.NextLine())
1.2620 + return rv;
1.2621 +
1.2622 + fullpath = reader.LinePtr();
1.2623 + if (!reader.NextLine())
1.2624 + return rv;
1.2625 + }
1.2626 +
1.2627 + const char *version;
1.2628 + if (regHasVersion) {
1.2629 + version = reader.LinePtr();
1.2630 + if (!reader.NextLine())
1.2631 + return rv;
1.2632 + } else {
1.2633 + version = "0";
1.2634 + }
1.2635 +
1.2636 + // lastModifiedTimeStamp|canUnload|tag.mFlag|fromExtension
1.2637 + const int count = hasFromExtension ? 4 : 3;
1.2638 + if (reader.ParseLine(values, count) != count)
1.2639 + return rv;
1.2640 +
1.2641 + // If this is an old plugin registry mark this plugin tag to be refreshed
1.2642 + int64_t lastmod = (vdiff == 0) ? nsCRT::atoll(values[0]) : -1;
1.2643 + uint32_t tagflag = atoi(values[2]);
1.2644 + bool fromExtension = false;
1.2645 + if (hasFromExtension) {
1.2646 + fromExtension = atoi(values[3]);
1.2647 + }
1.2648 + if (!reader.NextLine())
1.2649 + return rv;
1.2650 +
1.2651 + char *description = reader.LinePtr();
1.2652 + if (!reader.NextLine())
1.2653 + return rv;
1.2654 +
1.2655 +#if MOZ_WIDGET_ANDROID
1.2656 + // Flash on Android does not populate the version field, but it is tacked on to the description.
1.2657 + // For example, "Shockwave Flash 11.1 r115"
1.2658 + if (PL_strncmp("Shockwave Flash ", description, 16) == 0 && description[16]) {
1.2659 + version = &description[16];
1.2660 + }
1.2661 +#endif
1.2662 +
1.2663 + const char *name = reader.LinePtr();
1.2664 + if (!reader.NextLine())
1.2665 + return rv;
1.2666 +
1.2667 + long mimetypecount = std::strtol(reader.LinePtr(), nullptr, 10);
1.2668 + if (mimetypecount == LONG_MAX || mimetypecount == LONG_MIN ||
1.2669 + mimetypecount >= PLUGIN_REG_MAX_MIMETYPES || mimetypecount < 0) {
1.2670 + return NS_ERROR_FAILURE;
1.2671 + }
1.2672 +
1.2673 + char *stackalloced[PLUGIN_REG_MIMETYPES_ARRAY_SIZE * 3];
1.2674 + char **mimetypes;
1.2675 + char **mimedescriptions;
1.2676 + char **extensions;
1.2677 + char **heapalloced = 0;
1.2678 + if (mimetypecount > PLUGIN_REG_MIMETYPES_ARRAY_SIZE - 1) {
1.2679 + heapalloced = new char *[mimetypecount * 3];
1.2680 + mimetypes = heapalloced;
1.2681 + } else {
1.2682 + mimetypes = stackalloced;
1.2683 + }
1.2684 + mimedescriptions = mimetypes + mimetypecount;
1.2685 + extensions = mimedescriptions + mimetypecount;
1.2686 +
1.2687 + int mtr = 0; //mimetype read
1.2688 + for (; mtr < mimetypecount; mtr++) {
1.2689 + if (!reader.NextLine())
1.2690 + break;
1.2691 +
1.2692 + //line number|mimetype|description|extension
1.2693 + if (4 != reader.ParseLine(values, 4))
1.2694 + break;
1.2695 + int line = atoi(values[0]);
1.2696 + if (line != mtr)
1.2697 + break;
1.2698 + mimetypes[mtr] = values[1];
1.2699 + mimedescriptions[mtr] = values[2];
1.2700 + extensions[mtr] = values[3];
1.2701 + }
1.2702 +
1.2703 + if (mtr != mimetypecount) {
1.2704 + if (heapalloced) {
1.2705 + delete [] heapalloced;
1.2706 + }
1.2707 + return rv;
1.2708 + }
1.2709 +
1.2710 + nsRefPtr<nsPluginTag> tag = new nsPluginTag(name,
1.2711 + description,
1.2712 + filename,
1.2713 + fullpath,
1.2714 + version,
1.2715 + (const char* const*)mimetypes,
1.2716 + (const char* const*)mimedescriptions,
1.2717 + (const char* const*)extensions,
1.2718 + mimetypecount, lastmod, fromExtension, true);
1.2719 + if (heapalloced)
1.2720 + delete [] heapalloced;
1.2721 +
1.2722 + // Import flags from registry into prefs for old registry versions
1.2723 + if (hasValidFlags && !pluginStateImported) {
1.2724 + tag->ImportFlagsToPrefs(tagflag);
1.2725 + }
1.2726 +
1.2727 + PR_LOG(nsPluginLogging::gPluginLog, PLUGIN_LOG_BASIC,
1.2728 + ("LoadCachedPluginsInfo : Loading Cached plugininfo for %s\n", tag->mFileName.get()));
1.2729 + tag->mNext = mCachedPlugins;
1.2730 + mCachedPlugins = tag;
1.2731 + }
1.2732 +
1.2733 +// On Android we always want to try to load a plugin again (Flash). Bug 935676.
1.2734 +#ifndef MOZ_WIDGET_ANDROID
1.2735 + if (hasInvalidPlugins) {
1.2736 + if (!ReadSectionHeader(reader, "INVALID")) {
1.2737 + return rv;
1.2738 + }
1.2739 +
1.2740 + while (reader.NextLine()) {
1.2741 + const char *fullpath = reader.LinePtr();
1.2742 + if (!reader.NextLine()) {
1.2743 + return rv;
1.2744 + }
1.2745 +
1.2746 + const char *lastModifiedTimeStamp = reader.LinePtr();
1.2747 + int64_t lastmod = (vdiff == 0) ? nsCRT::atoll(lastModifiedTimeStamp) : -1;
1.2748 +
1.2749 + nsRefPtr<nsInvalidPluginTag> invalidTag = new nsInvalidPluginTag(fullpath, lastmod);
1.2750 +
1.2751 + invalidTag->mNext = mInvalidPlugins;
1.2752 + if (mInvalidPlugins) {
1.2753 + mInvalidPlugins->mPrev = invalidTag;
1.2754 + }
1.2755 + mInvalidPlugins = invalidTag;
1.2756 + }
1.2757 + }
1.2758 +#endif
1.2759 +
1.2760 + // flip the pref so we don't import the legacy flags again
1.2761 + Preferences::SetBool("plugin.importedState", true);
1.2762 +
1.2763 + return NS_OK;
1.2764 +}
1.2765 +
1.2766 +void
1.2767 +nsPluginHost::RemoveCachedPluginsInfo(const char *filePath, nsPluginTag **result)
1.2768 +{
1.2769 + nsRefPtr<nsPluginTag> prev;
1.2770 + nsRefPtr<nsPluginTag> tag = mCachedPlugins;
1.2771 + while (tag)
1.2772 + {
1.2773 + if (tag->mFullPath.Equals(filePath)) {
1.2774 + // Found it. Remove it from our list
1.2775 + if (prev)
1.2776 + prev->mNext = tag->mNext;
1.2777 + else
1.2778 + mCachedPlugins = tag->mNext;
1.2779 + tag->mNext = nullptr;
1.2780 + *result = tag;
1.2781 + NS_ADDREF(*result);
1.2782 + break;
1.2783 + }
1.2784 + prev = tag;
1.2785 + tag = tag->mNext;
1.2786 + }
1.2787 +}
1.2788 +
1.2789 +#ifdef XP_WIN
1.2790 +nsresult
1.2791 +nsPluginHost::EnsurePrivateDirServiceProvider()
1.2792 +{
1.2793 + if (!mPrivateDirServiceProvider) {
1.2794 + nsresult rv;
1.2795 + mPrivateDirServiceProvider = new nsPluginDirServiceProvider();
1.2796 + if (!mPrivateDirServiceProvider)
1.2797 + return NS_ERROR_OUT_OF_MEMORY;
1.2798 + nsCOMPtr<nsIDirectoryService> dirService(do_GetService(kDirectoryServiceContractID, &rv));
1.2799 + if (NS_FAILED(rv))
1.2800 + return rv;
1.2801 + rv = dirService->RegisterProvider(mPrivateDirServiceProvider);
1.2802 + if (NS_FAILED(rv))
1.2803 + return rv;
1.2804 + }
1.2805 + return NS_OK;
1.2806 +}
1.2807 +#endif /* XP_WIN */
1.2808 +
1.2809 +nsresult nsPluginHost::NewPluginURLStream(const nsString& aURL,
1.2810 + nsNPAPIPluginInstance *aInstance,
1.2811 + nsNPAPIPluginStreamListener* aListener,
1.2812 + nsIInputStream *aPostStream,
1.2813 + const char *aHeadersData,
1.2814 + uint32_t aHeadersDataLen)
1.2815 +{
1.2816 + nsCOMPtr<nsIURI> url;
1.2817 + nsAutoString absUrl;
1.2818 + nsresult rv;
1.2819 +
1.2820 + if (aURL.Length() <= 0)
1.2821 + return NS_OK;
1.2822 +
1.2823 + // get the base URI for the plugin to create an absolute url
1.2824 + // in case aURL is relative
1.2825 + nsRefPtr<nsPluginInstanceOwner> owner = aInstance->GetOwner();
1.2826 + if (owner) {
1.2827 + rv = NS_MakeAbsoluteURI(absUrl, aURL, nsCOMPtr<nsIURI>(owner->GetBaseURI()));
1.2828 + }
1.2829 +
1.2830 + if (absUrl.IsEmpty())
1.2831 + absUrl.Assign(aURL);
1.2832 +
1.2833 + rv = NS_NewURI(getter_AddRefs(url), absUrl);
1.2834 + if (NS_FAILED(rv))
1.2835 + return rv;
1.2836 +
1.2837 + nsCOMPtr<nsIDOMElement> element;
1.2838 + nsCOMPtr<nsIDocument> doc;
1.2839 + if (owner) {
1.2840 + owner->GetDOMElement(getter_AddRefs(element));
1.2841 + owner->GetDocument(getter_AddRefs(doc));
1.2842 + }
1.2843 +
1.2844 + int16_t shouldLoad = nsIContentPolicy::ACCEPT;
1.2845 + rv = NS_CheckContentLoadPolicy(nsIContentPolicy::TYPE_OBJECT_SUBREQUEST,
1.2846 + url,
1.2847 + (doc ? doc->NodePrincipal() : nullptr),
1.2848 + element,
1.2849 + EmptyCString(), //mime guess
1.2850 + nullptr, //extra
1.2851 + &shouldLoad);
1.2852 + if (NS_FAILED(rv))
1.2853 + return rv;
1.2854 + if (NS_CP_REJECTED(shouldLoad)) {
1.2855 + // Disallowed by content policy
1.2856 + return NS_ERROR_CONTENT_BLOCKED;
1.2857 + }
1.2858 +
1.2859 + nsRefPtr<nsPluginStreamListenerPeer> listenerPeer = new nsPluginStreamListenerPeer();
1.2860 + if (!listenerPeer)
1.2861 + return NS_ERROR_OUT_OF_MEMORY;
1.2862 +
1.2863 + rv = listenerPeer->Initialize(url, aInstance, aListener);
1.2864 + if (NS_FAILED(rv))
1.2865 + return rv;
1.2866 +
1.2867 + nsCOMPtr<nsIChannel> channel;
1.2868 + rv = NS_NewChannel(getter_AddRefs(channel), url, nullptr,
1.2869 + nullptr, /* do not add this internal plugin's channel
1.2870 + on the load group otherwise this channel could be canceled
1.2871 + form |nsDocShell::OnLinkClickSync| bug 166613 */
1.2872 + listenerPeer);
1.2873 + if (NS_FAILED(rv))
1.2874 + return rv;
1.2875 +
1.2876 + if (doc) {
1.2877 + // Set the owner of channel to the document principal...
1.2878 + channel->SetOwner(doc->NodePrincipal());
1.2879 +
1.2880 + // And if it's a script allow it to execute against the
1.2881 + // document's script context.
1.2882 + nsCOMPtr<nsIScriptChannel> scriptChannel(do_QueryInterface(channel));
1.2883 + if (scriptChannel) {
1.2884 + scriptChannel->SetExecutionPolicy(nsIScriptChannel::EXECUTE_NORMAL);
1.2885 + // Plug-ins seem to depend on javascript: URIs running synchronously
1.2886 + scriptChannel->SetExecuteAsync(false);
1.2887 + }
1.2888 + }
1.2889 +
1.2890 + // deal with headers and post data
1.2891 + nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(channel));
1.2892 + if (httpChannel) {
1.2893 + if (!aPostStream) {
1.2894 + // Only set the Referer header for GET requests because IIS throws
1.2895 + // errors about malformed requests if we include it in POSTs. See
1.2896 + // bug 724465.
1.2897 + nsCOMPtr<nsIURI> referer;
1.2898 +
1.2899 + nsCOMPtr<nsIObjectLoadingContent> olc = do_QueryInterface(element);
1.2900 + if (olc)
1.2901 + olc->GetSrcURI(getter_AddRefs(referer));
1.2902 +
1.2903 +
1.2904 + if (!referer) {
1.2905 + if (!doc) {
1.2906 + return NS_ERROR_FAILURE;
1.2907 + }
1.2908 + referer = doc->GetDocumentURI();
1.2909 + }
1.2910 +
1.2911 + rv = httpChannel->SetReferrer(referer);
1.2912 + NS_ENSURE_SUCCESS(rv,rv);
1.2913 + }
1.2914 +
1.2915 + if (aPostStream) {
1.2916 + // XXX it's a bit of a hack to rewind the postdata stream
1.2917 + // here but it has to be done in case the post data is
1.2918 + // being reused multiple times.
1.2919 + nsCOMPtr<nsISeekableStream>
1.2920 + postDataSeekable(do_QueryInterface(aPostStream));
1.2921 + if (postDataSeekable)
1.2922 + postDataSeekable->Seek(nsISeekableStream::NS_SEEK_SET, 0);
1.2923 +
1.2924 + nsCOMPtr<nsIUploadChannel> uploadChannel(do_QueryInterface(httpChannel));
1.2925 + NS_ASSERTION(uploadChannel, "http must support nsIUploadChannel");
1.2926 +
1.2927 + uploadChannel->SetUploadStream(aPostStream, EmptyCString(), -1);
1.2928 + }
1.2929 +
1.2930 + if (aHeadersData) {
1.2931 + rv = AddHeadersToChannel(aHeadersData, aHeadersDataLen, httpChannel);
1.2932 + NS_ENSURE_SUCCESS(rv,rv);
1.2933 + }
1.2934 + }
1.2935 + rv = channel->AsyncOpen(listenerPeer, nullptr);
1.2936 + if (NS_SUCCEEDED(rv))
1.2937 + listenerPeer->TrackRequest(channel);
1.2938 + return rv;
1.2939 +}
1.2940 +
1.2941 +// Called by GetURL and PostURL
1.2942 +nsresult
1.2943 +nsPluginHost::DoURLLoadSecurityCheck(nsNPAPIPluginInstance *aInstance,
1.2944 + const char* aURL)
1.2945 +{
1.2946 + if (!aURL || *aURL == '\0')
1.2947 + return NS_OK;
1.2948 +
1.2949 + // get the base URI for the plugin element
1.2950 + nsRefPtr<nsPluginInstanceOwner> owner = aInstance->GetOwner();
1.2951 + if (!owner)
1.2952 + return NS_ERROR_FAILURE;
1.2953 +
1.2954 + nsCOMPtr<nsIURI> baseURI = owner->GetBaseURI();
1.2955 + if (!baseURI)
1.2956 + return NS_ERROR_FAILURE;
1.2957 +
1.2958 + // Create an absolute URL for the target in case the target is relative
1.2959 + nsCOMPtr<nsIURI> targetURL;
1.2960 + NS_NewURI(getter_AddRefs(targetURL), aURL, baseURI);
1.2961 + if (!targetURL)
1.2962 + return NS_ERROR_FAILURE;
1.2963 +
1.2964 + nsCOMPtr<nsIDocument> doc;
1.2965 + owner->GetDocument(getter_AddRefs(doc));
1.2966 + if (!doc)
1.2967 + return NS_ERROR_FAILURE;
1.2968 +
1.2969 + nsresult rv;
1.2970 + nsCOMPtr<nsIScriptSecurityManager> secMan(
1.2971 + do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv));
1.2972 + if (NS_FAILED(rv))
1.2973 + return rv;
1.2974 +
1.2975 + return secMan->CheckLoadURIWithPrincipal(doc->NodePrincipal(), targetURL,
1.2976 + nsIScriptSecurityManager::STANDARD);
1.2977 +
1.2978 +}
1.2979 +
1.2980 +nsresult
1.2981 +nsPluginHost::AddHeadersToChannel(const char *aHeadersData,
1.2982 + uint32_t aHeadersDataLen,
1.2983 + nsIChannel *aGenericChannel)
1.2984 +{
1.2985 + nsresult rv = NS_OK;
1.2986 +
1.2987 + nsCOMPtr<nsIHttpChannel> aChannel = do_QueryInterface(aGenericChannel);
1.2988 + if (!aChannel) {
1.2989 + return NS_ERROR_NULL_POINTER;
1.2990 + }
1.2991 +
1.2992 + // used during the manipulation of the String from the aHeadersData
1.2993 + nsAutoCString headersString;
1.2994 + nsAutoCString oneHeader;
1.2995 + nsAutoCString headerName;
1.2996 + nsAutoCString headerValue;
1.2997 + int32_t crlf = 0;
1.2998 + int32_t colon = 0;
1.2999 +
1.3000 + // Turn the char * buffer into an nsString.
1.3001 + headersString = aHeadersData;
1.3002 +
1.3003 + // Iterate over the nsString: for each "\r\n" delimited chunk,
1.3004 + // add the value as a header to the nsIHTTPChannel
1.3005 + while (true) {
1.3006 + crlf = headersString.Find("\r\n", true);
1.3007 + if (-1 == crlf) {
1.3008 + rv = NS_OK;
1.3009 + return rv;
1.3010 + }
1.3011 + headersString.Mid(oneHeader, 0, crlf);
1.3012 + headersString.Cut(0, crlf + 2);
1.3013 + oneHeader.StripWhitespace();
1.3014 + colon = oneHeader.Find(":");
1.3015 + if (-1 == colon) {
1.3016 + rv = NS_ERROR_NULL_POINTER;
1.3017 + return rv;
1.3018 + }
1.3019 + oneHeader.Left(headerName, colon);
1.3020 + colon++;
1.3021 + oneHeader.Mid(headerValue, colon, oneHeader.Length() - colon);
1.3022 +
1.3023 + // FINALLY: we can set the header!
1.3024 +
1.3025 + rv = aChannel->SetRequestHeader(headerName, headerValue, true);
1.3026 + if (NS_FAILED(rv)) {
1.3027 + rv = NS_ERROR_NULL_POINTER;
1.3028 + return rv;
1.3029 + }
1.3030 + }
1.3031 + return rv;
1.3032 +}
1.3033 +
1.3034 +nsresult
1.3035 +nsPluginHost::StopPluginInstance(nsNPAPIPluginInstance* aInstance)
1.3036 +{
1.3037 + if (PluginDestructionGuard::DelayDestroy(aInstance)) {
1.3038 + return NS_OK;
1.3039 + }
1.3040 +
1.3041 + PLUGIN_LOG(PLUGIN_LOG_NORMAL,
1.3042 + ("nsPluginHost::StopPluginInstance called instance=%p\n",aInstance));
1.3043 +
1.3044 + if (aInstance->HasStartedDestroying()) {
1.3045 + return NS_OK;
1.3046 + }
1.3047 +
1.3048 + Telemetry::AutoTimer<Telemetry::PLUGIN_SHUTDOWN_MS> timer;
1.3049 + aInstance->Stop();
1.3050 +
1.3051 + // if the instance does not want to be 'cached' just remove it
1.3052 + bool doCache = aInstance->ShouldCache();
1.3053 + if (doCache) {
1.3054 + // try to get the max cached instances from a pref or use default
1.3055 + uint32_t cachedInstanceLimit =
1.3056 + Preferences::GetUint(NS_PREF_MAX_NUM_CACHED_INSTANCES,
1.3057 + DEFAULT_NUMBER_OF_STOPPED_INSTANCES);
1.3058 + if (StoppedInstanceCount() >= cachedInstanceLimit) {
1.3059 + nsNPAPIPluginInstance *oldestInstance = FindOldestStoppedInstance();
1.3060 + if (oldestInstance) {
1.3061 + nsPluginTag* pluginTag = TagForPlugin(oldestInstance->GetPlugin());
1.3062 + oldestInstance->Destroy();
1.3063 + mInstances.RemoveElement(oldestInstance);
1.3064 + // TODO: Remove this check once bug 752422 was investigated
1.3065 + if (pluginTag) {
1.3066 + OnPluginInstanceDestroyed(pluginTag);
1.3067 + }
1.3068 + }
1.3069 + }
1.3070 + } else {
1.3071 + nsPluginTag* pluginTag = TagForPlugin(aInstance->GetPlugin());
1.3072 + aInstance->Destroy();
1.3073 + mInstances.RemoveElement(aInstance);
1.3074 + // TODO: Remove this check once bug 752422 was investigated
1.3075 + if (pluginTag) {
1.3076 + OnPluginInstanceDestroyed(pluginTag);
1.3077 + }
1.3078 + }
1.3079 +
1.3080 + return NS_OK;
1.3081 +}
1.3082 +
1.3083 +nsresult nsPluginHost::NewPluginStreamListener(nsIURI* aURI,
1.3084 + nsNPAPIPluginInstance* aInstance,
1.3085 + nsIStreamListener **aStreamListener)
1.3086 +{
1.3087 + NS_ENSURE_ARG_POINTER(aURI);
1.3088 + NS_ENSURE_ARG_POINTER(aStreamListener);
1.3089 +
1.3090 + nsRefPtr<nsPluginStreamListenerPeer> listener = new nsPluginStreamListenerPeer();
1.3091 + nsresult rv = listener->Initialize(aURI, aInstance, nullptr);
1.3092 + if (NS_FAILED(rv)) {
1.3093 + return rv;
1.3094 + }
1.3095 +
1.3096 + listener.forget(aStreamListener);
1.3097 +
1.3098 + return NS_OK;
1.3099 +}
1.3100 +
1.3101 +NS_IMETHODIMP nsPluginHost::Observe(nsISupports *aSubject,
1.3102 + const char *aTopic,
1.3103 + const char16_t *someData)
1.3104 +{
1.3105 + if (!strcmp(NS_XPCOM_SHUTDOWN_OBSERVER_ID, aTopic)) {
1.3106 + OnShutdown();
1.3107 + UnloadPlugins();
1.3108 + sInst->Release();
1.3109 + }
1.3110 + if (!strcmp(NS_PREFBRANCH_PREFCHANGE_TOPIC_ID, aTopic)) {
1.3111 + mPluginsDisabled = Preferences::GetBool("plugin.disable", false);
1.3112 + mPluginsClickToPlay = Preferences::GetBool("plugins.click_to_play", false);
1.3113 + // Unload or load plugins as needed
1.3114 + if (mPluginsDisabled) {
1.3115 + UnloadPlugins();
1.3116 + } else {
1.3117 + LoadPlugins();
1.3118 + }
1.3119 + }
1.3120 + if (!strcmp("blocklist-updated", aTopic)) {
1.3121 + nsPluginTag* plugin = mPlugins;
1.3122 + while (plugin) {
1.3123 + plugin->InvalidateBlocklistState();
1.3124 + plugin = plugin->mNext;
1.3125 + }
1.3126 + }
1.3127 +#ifdef MOZ_WIDGET_ANDROID
1.3128 + if (!strcmp("application-background", aTopic)) {
1.3129 + for(uint32_t i = 0; i < mInstances.Length(); i++) {
1.3130 + mInstances[i]->NotifyForeground(false);
1.3131 + }
1.3132 + }
1.3133 + if (!strcmp("application-foreground", aTopic)) {
1.3134 + for(uint32_t i = 0; i < mInstances.Length(); i++) {
1.3135 + if (mInstances[i]->IsOnScreen())
1.3136 + mInstances[i]->NotifyForeground(true);
1.3137 + }
1.3138 + }
1.3139 + if (!strcmp("memory-pressure", aTopic)) {
1.3140 + for(uint32_t i = 0; i < mInstances.Length(); i++) {
1.3141 + mInstances[i]->MemoryPressure();
1.3142 + }
1.3143 + }
1.3144 +#endif
1.3145 + return NS_OK;
1.3146 +}
1.3147 +
1.3148 +nsresult
1.3149 +nsPluginHost::ParsePostBufferToFixHeaders(const char *inPostData, uint32_t inPostDataLen,
1.3150 + char **outPostData, uint32_t *outPostDataLen)
1.3151 +{
1.3152 + if (!inPostData || !outPostData || !outPostDataLen)
1.3153 + return NS_ERROR_NULL_POINTER;
1.3154 +
1.3155 + *outPostData = 0;
1.3156 + *outPostDataLen = 0;
1.3157 +
1.3158 + const char CR = '\r';
1.3159 + const char LF = '\n';
1.3160 + const char CRLFCRLF[] = {CR,LF,CR,LF,'\0'}; // C string"\r\n\r\n"
1.3161 + const char ContentLenHeader[] = "Content-length";
1.3162 +
1.3163 + nsAutoTArray<const char*, 8> singleLF;
1.3164 + const char *pSCntlh = 0;// pointer to start of ContentLenHeader in inPostData
1.3165 + const char *pSod = 0; // pointer to start of data in inPostData
1.3166 + const char *pEoh = 0; // pointer to end of headers in inPostData
1.3167 + const char *pEod = inPostData + inPostDataLen; // pointer to end of inPostData
1.3168 + if (*inPostData == LF) {
1.3169 + // If no custom headers are required, simply add a blank
1.3170 + // line ('\n') to the beginning of the file or buffer.
1.3171 + // so *inPostData == '\n' is valid
1.3172 + pSod = inPostData + 1;
1.3173 + } else {
1.3174 + const char *s = inPostData; //tmp pointer to sourse inPostData
1.3175 + while (s < pEod) {
1.3176 + if (!pSCntlh &&
1.3177 + (*s == 'C' || *s == 'c') &&
1.3178 + (s + sizeof(ContentLenHeader) - 1 < pEod) &&
1.3179 + (!PL_strncasecmp(s, ContentLenHeader, sizeof(ContentLenHeader) - 1)))
1.3180 + {
1.3181 + // lets assume this is ContentLenHeader for now
1.3182 + const char *p = pSCntlh = s;
1.3183 + p += sizeof(ContentLenHeader) - 1;
1.3184 + // search for first CR or LF == end of ContentLenHeader
1.3185 + for (; p < pEod; p++) {
1.3186 + if (*p == CR || *p == LF) {
1.3187 + // got delimiter,
1.3188 + // one more check; if previous char is a digit
1.3189 + // most likely pSCntlh points to the start of ContentLenHeader
1.3190 + if (*(p-1) >= '0' && *(p-1) <= '9') {
1.3191 + s = p;
1.3192 + }
1.3193 + break; //for loop
1.3194 + }
1.3195 + }
1.3196 + if (pSCntlh == s) { // curret ptr is the same
1.3197 + pSCntlh = 0; // that was not ContentLenHeader
1.3198 + break; // there is nothing to parse, break *WHILE LOOP* here
1.3199 + }
1.3200 + }
1.3201 +
1.3202 + if (*s == CR) {
1.3203 + if (pSCntlh && // only if ContentLenHeader is found we are looking for end of headers
1.3204 + ((s + sizeof(CRLFCRLF)-1) <= pEod) &&
1.3205 + !memcmp(s, CRLFCRLF, sizeof(CRLFCRLF)-1))
1.3206 + {
1.3207 + s += sizeof(CRLFCRLF)-1;
1.3208 + pEoh = pSod = s; // data stars here
1.3209 + break;
1.3210 + }
1.3211 + } else if (*s == LF) {
1.3212 + if (*(s-1) != CR) {
1.3213 + singleLF.AppendElement(s);
1.3214 + }
1.3215 + if (pSCntlh && (s+1 < pEod) && (*(s+1) == LF)) {
1.3216 + s++;
1.3217 + singleLF.AppendElement(s);
1.3218 + s++;
1.3219 + pEoh = pSod = s; // data stars here
1.3220 + break;
1.3221 + }
1.3222 + }
1.3223 + s++;
1.3224 + }
1.3225 + }
1.3226 +
1.3227 + // deal with output buffer
1.3228 + if (!pSod) { // lets assume whole buffer is a data
1.3229 + pSod = inPostData;
1.3230 + }
1.3231 +
1.3232 + uint32_t newBufferLen = 0;
1.3233 + uint32_t dataLen = pEod - pSod;
1.3234 + uint32_t headersLen = pEoh ? pSod - inPostData : 0;
1.3235 +
1.3236 + char *p; // tmp ptr into new output buf
1.3237 + if (headersLen) { // we got a headers
1.3238 + // this function does not make any assumption on correctness
1.3239 + // of ContentLenHeader value in this case.
1.3240 +
1.3241 + newBufferLen = dataLen + headersLen;
1.3242 + // in case there were single LFs in headers
1.3243 + // reserve an extra space for CR will be added before each single LF
1.3244 + int cntSingleLF = singleLF.Length();
1.3245 + newBufferLen += cntSingleLF;
1.3246 +
1.3247 + if (!(*outPostData = p = (char*)nsMemory::Alloc(newBufferLen)))
1.3248 + return NS_ERROR_OUT_OF_MEMORY;
1.3249 +
1.3250 + // deal with single LF
1.3251 + const char *s = inPostData;
1.3252 + if (cntSingleLF) {
1.3253 + for (int i=0; i<cntSingleLF; i++) {
1.3254 + const char *plf = singleLF.ElementAt(i); // ptr to single LF in headers
1.3255 + int n = plf - s; // bytes to copy
1.3256 + if (n) { // for '\n\n' there is nothing to memcpy
1.3257 + memcpy(p, s, n);
1.3258 + p += n;
1.3259 + }
1.3260 + *p++ = CR;
1.3261 + s = plf;
1.3262 + *p++ = *s++;
1.3263 + }
1.3264 + }
1.3265 + // are we done with headers?
1.3266 + headersLen = pEoh - s;
1.3267 + if (headersLen) { // not yet
1.3268 + memcpy(p, s, headersLen); // copy the rest
1.3269 + p += headersLen;
1.3270 + }
1.3271 + } else if (dataLen) { // no ContentLenHeader is found but there is a data
1.3272 + // make new output buffer big enough
1.3273 + // to keep ContentLenHeader+value followed by data
1.3274 + uint32_t l = sizeof(ContentLenHeader) + sizeof(CRLFCRLF) + 32;
1.3275 + newBufferLen = dataLen + l;
1.3276 + if (!(*outPostData = p = (char*)nsMemory::Alloc(newBufferLen)))
1.3277 + return NS_ERROR_OUT_OF_MEMORY;
1.3278 + headersLen = PR_snprintf(p, l,"%s: %ld%s", ContentLenHeader, dataLen, CRLFCRLF);
1.3279 + if (headersLen == l) { // if PR_snprintf has ate all extra space consider this as an error
1.3280 + nsMemory::Free(p);
1.3281 + *outPostData = 0;
1.3282 + return NS_ERROR_FAILURE;
1.3283 + }
1.3284 + p += headersLen;
1.3285 + newBufferLen = headersLen + dataLen;
1.3286 + }
1.3287 + // at this point we've done with headers.
1.3288 + // there is a possibility that input buffer has only headers info in it
1.3289 + // which already parsed and copied into output buffer.
1.3290 + // copy the data
1.3291 + if (dataLen) {
1.3292 + memcpy(p, pSod, dataLen);
1.3293 + }
1.3294 +
1.3295 + *outPostDataLen = newBufferLen;
1.3296 +
1.3297 + return NS_OK;
1.3298 +}
1.3299 +
1.3300 +nsresult
1.3301 +nsPluginHost::CreateTempFileToPost(const char *aPostDataURL, nsIFile **aTmpFile)
1.3302 +{
1.3303 + nsresult rv;
1.3304 + int64_t fileSize;
1.3305 + nsAutoCString filename;
1.3306 +
1.3307 + // stat file == get size & convert file:///c:/ to c: if needed
1.3308 + nsCOMPtr<nsIFile> inFile;
1.3309 + rv = NS_GetFileFromURLSpec(nsDependentCString(aPostDataURL),
1.3310 + getter_AddRefs(inFile));
1.3311 + if (NS_FAILED(rv)) {
1.3312 + nsCOMPtr<nsIFile> localFile;
1.3313 + rv = NS_NewNativeLocalFile(nsDependentCString(aPostDataURL), false,
1.3314 + getter_AddRefs(localFile));
1.3315 + if (NS_FAILED(rv)) return rv;
1.3316 + inFile = localFile;
1.3317 + }
1.3318 + rv = inFile->GetFileSize(&fileSize);
1.3319 + if (NS_FAILED(rv)) return rv;
1.3320 + rv = inFile->GetNativePath(filename);
1.3321 + if (NS_FAILED(rv)) return rv;
1.3322 +
1.3323 + if (fileSize != 0) {
1.3324 + nsCOMPtr<nsIInputStream> inStream;
1.3325 + rv = NS_NewLocalFileInputStream(getter_AddRefs(inStream), inFile);
1.3326 + if (NS_FAILED(rv)) return rv;
1.3327 +
1.3328 + // Create a temporary file to write the http Content-length:
1.3329 + // %ld\r\n\" header and "\r\n" == end of headers for post data to
1.3330 +
1.3331 + nsCOMPtr<nsIFile> tempFile;
1.3332 + rv = GetPluginTempDir(getter_AddRefs(tempFile));
1.3333 + if (NS_FAILED(rv))
1.3334 + return rv;
1.3335 +
1.3336 + nsAutoCString inFileName;
1.3337 + inFile->GetNativeLeafName(inFileName);
1.3338 + // XXX hack around bug 70083
1.3339 + inFileName.Insert(NS_LITERAL_CSTRING("post-"), 0);
1.3340 + rv = tempFile->AppendNative(inFileName);
1.3341 +
1.3342 + if (NS_FAILED(rv))
1.3343 + return rv;
1.3344 +
1.3345 + // make it unique, and mode == 0600, not world-readable
1.3346 + rv = tempFile->CreateUnique(nsIFile::NORMAL_FILE_TYPE, 0600);
1.3347 + if (NS_FAILED(rv))
1.3348 + return rv;
1.3349 +
1.3350 + nsCOMPtr<nsIOutputStream> outStream;
1.3351 + if (NS_SUCCEEDED(rv)) {
1.3352 + rv = NS_NewLocalFileOutputStream(getter_AddRefs(outStream),
1.3353 + tempFile,
1.3354 + (PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE),
1.3355 + 0600); // 600 so others can't read our form data
1.3356 + }
1.3357 + NS_ASSERTION(NS_SUCCEEDED(rv), "Post data file couldn't be created!");
1.3358 + if (NS_FAILED(rv))
1.3359 + return rv;
1.3360 +
1.3361 + char buf[1024];
1.3362 + uint32_t br, bw;
1.3363 + bool firstRead = true;
1.3364 + while (1) {
1.3365 + // Read() mallocs if buffer is null
1.3366 + rv = inStream->Read(buf, 1024, &br);
1.3367 + if (NS_FAILED(rv) || (int32_t)br <= 0)
1.3368 + break;
1.3369 + if (firstRead) {
1.3370 + //"For protocols in which the headers must be distinguished from the body,
1.3371 + // such as HTTP, the buffer or file should contain the headers, followed by
1.3372 + // a blank line, then the body. If no custom headers are required, simply
1.3373 + // add a blank line ('\n') to the beginning of the file or buffer.
1.3374 +
1.3375 + char *parsedBuf;
1.3376 + // assuming first 1K (or what we got) has all headers in,
1.3377 + // lets parse it through nsPluginHost::ParsePostBufferToFixHeaders()
1.3378 + ParsePostBufferToFixHeaders((const char *)buf, br, &parsedBuf, &bw);
1.3379 + rv = outStream->Write(parsedBuf, bw, &br);
1.3380 + nsMemory::Free(parsedBuf);
1.3381 + if (NS_FAILED(rv) || (bw != br))
1.3382 + break;
1.3383 +
1.3384 + firstRead = false;
1.3385 + continue;
1.3386 + }
1.3387 + bw = br;
1.3388 + rv = outStream->Write(buf, bw, &br);
1.3389 + if (NS_FAILED(rv) || (bw != br))
1.3390 + break;
1.3391 + }
1.3392 +
1.3393 + inStream->Close();
1.3394 + outStream->Close();
1.3395 + if (NS_SUCCEEDED(rv))
1.3396 + tempFile.forget(aTmpFile);
1.3397 + }
1.3398 + return rv;
1.3399 +}
1.3400 +
1.3401 +nsresult
1.3402 +nsPluginHost::NewPluginNativeWindow(nsPluginNativeWindow ** aPluginNativeWindow)
1.3403 +{
1.3404 + return PLUG_NewPluginNativeWindow(aPluginNativeWindow);
1.3405 +}
1.3406 +
1.3407 +nsresult
1.3408 +nsPluginHost::GetPluginName(nsNPAPIPluginInstance *aPluginInstance,
1.3409 + const char** aPluginName)
1.3410 +{
1.3411 + nsNPAPIPluginInstance *instance = static_cast<nsNPAPIPluginInstance*>(aPluginInstance);
1.3412 + if (!instance)
1.3413 + return NS_ERROR_FAILURE;
1.3414 +
1.3415 + nsNPAPIPlugin* plugin = instance->GetPlugin();
1.3416 + if (!plugin)
1.3417 + return NS_ERROR_FAILURE;
1.3418 +
1.3419 + *aPluginName = TagForPlugin(plugin)->mName.get();
1.3420 +
1.3421 + return NS_OK;
1.3422 +}
1.3423 +
1.3424 +nsresult
1.3425 +nsPluginHost::GetPluginTagForInstance(nsNPAPIPluginInstance *aPluginInstance,
1.3426 + nsIPluginTag **aPluginTag)
1.3427 +{
1.3428 + NS_ENSURE_ARG_POINTER(aPluginInstance);
1.3429 + NS_ENSURE_ARG_POINTER(aPluginTag);
1.3430 +
1.3431 + nsNPAPIPlugin *plugin = aPluginInstance->GetPlugin();
1.3432 + if (!plugin)
1.3433 + return NS_ERROR_FAILURE;
1.3434 +
1.3435 + *aPluginTag = TagForPlugin(plugin);
1.3436 +
1.3437 + NS_ADDREF(*aPluginTag);
1.3438 + return NS_OK;
1.3439 +}
1.3440 +
1.3441 +NS_IMETHODIMP nsPluginHost::Notify(nsITimer* timer)
1.3442 +{
1.3443 + nsRefPtr<nsPluginTag> pluginTag = mPlugins;
1.3444 + while (pluginTag) {
1.3445 + if (pluginTag->mUnloadTimer == timer) {
1.3446 + if (!IsRunningPlugin(pluginTag)) {
1.3447 + pluginTag->TryUnloadPlugin(false);
1.3448 + }
1.3449 + return NS_OK;
1.3450 + }
1.3451 + pluginTag = pluginTag->mNext;
1.3452 + }
1.3453 +
1.3454 + return NS_ERROR_FAILURE;
1.3455 +}
1.3456 +
1.3457 +#ifdef XP_WIN
1.3458 +// Re-enable any top level browser windows that were disabled by modal dialogs
1.3459 +// displayed by the crashed plugin.
1.3460 +static void
1.3461 +CheckForDisabledWindows()
1.3462 +{
1.3463 + nsCOMPtr<nsIWindowMediator> wm(do_GetService(NS_WINDOWMEDIATOR_CONTRACTID));
1.3464 + if (!wm)
1.3465 + return;
1.3466 +
1.3467 + nsCOMPtr<nsISimpleEnumerator> windowList;
1.3468 + wm->GetXULWindowEnumerator(nullptr, getter_AddRefs(windowList));
1.3469 + if (!windowList)
1.3470 + return;
1.3471 +
1.3472 + bool haveWindows;
1.3473 + do {
1.3474 + windowList->HasMoreElements(&haveWindows);
1.3475 + if (!haveWindows)
1.3476 + return;
1.3477 +
1.3478 + nsCOMPtr<nsISupports> supportsWindow;
1.3479 + windowList->GetNext(getter_AddRefs(supportsWindow));
1.3480 + nsCOMPtr<nsIBaseWindow> baseWin(do_QueryInterface(supportsWindow));
1.3481 + if (baseWin) {
1.3482 + nsCOMPtr<nsIWidget> widget;
1.3483 + baseWin->GetMainWidget(getter_AddRefs(widget));
1.3484 + if (widget && !widget->GetParent() &&
1.3485 + widget->IsVisible() &&
1.3486 + !widget->IsEnabled()) {
1.3487 + nsIWidget* child = widget->GetFirstChild();
1.3488 + bool enable = true;
1.3489 + while (child) {
1.3490 + if (child->WindowType() == eWindowType_dialog) {
1.3491 + enable = false;
1.3492 + break;
1.3493 + }
1.3494 + child = child->GetNextSibling();
1.3495 + }
1.3496 + if (enable) {
1.3497 + widget->Enable(true);
1.3498 + }
1.3499 + }
1.3500 + }
1.3501 + } while (haveWindows);
1.3502 +}
1.3503 +#endif
1.3504 +
1.3505 +void
1.3506 +nsPluginHost::PluginCrashed(nsNPAPIPlugin* aPlugin,
1.3507 + const nsAString& pluginDumpID,
1.3508 + const nsAString& browserDumpID)
1.3509 +{
1.3510 + nsPluginTag* crashedPluginTag = TagForPlugin(aPlugin);
1.3511 +
1.3512 + // Notify the app's observer that a plugin crashed so it can submit
1.3513 + // a crashreport.
1.3514 + bool submittedCrashReport = false;
1.3515 + nsCOMPtr<nsIObserverService> obsService =
1.3516 + mozilla::services::GetObserverService();
1.3517 + nsCOMPtr<nsIWritablePropertyBag2> propbag =
1.3518 + do_CreateInstance("@mozilla.org/hash-property-bag;1");
1.3519 + if (obsService && propbag) {
1.3520 + propbag->SetPropertyAsAString(NS_LITERAL_STRING("pluginDumpID"),
1.3521 + pluginDumpID);
1.3522 + propbag->SetPropertyAsAString(NS_LITERAL_STRING("browserDumpID"),
1.3523 + browserDumpID);
1.3524 + propbag->SetPropertyAsBool(NS_LITERAL_STRING("submittedCrashReport"),
1.3525 + submittedCrashReport);
1.3526 + obsService->NotifyObservers(propbag, "plugin-crashed", nullptr);
1.3527 + // see if an observer submitted a crash report.
1.3528 + propbag->GetPropertyAsBool(NS_LITERAL_STRING("submittedCrashReport"),
1.3529 + &submittedCrashReport);
1.3530 + }
1.3531 +
1.3532 + // Invalidate each nsPluginInstanceTag for the crashed plugin
1.3533 +
1.3534 + for (uint32_t i = mInstances.Length(); i > 0; i--) {
1.3535 + nsNPAPIPluginInstance* instance = mInstances[i - 1];
1.3536 + if (instance->GetPlugin() == aPlugin) {
1.3537 + // notify the content node (nsIObjectLoadingContent) that the
1.3538 + // plugin has crashed
1.3539 + nsCOMPtr<nsIDOMElement> domElement;
1.3540 + instance->GetDOMElement(getter_AddRefs(domElement));
1.3541 + nsCOMPtr<nsIObjectLoadingContent> objectContent(do_QueryInterface(domElement));
1.3542 + if (objectContent) {
1.3543 + objectContent->PluginCrashed(crashedPluginTag, pluginDumpID, browserDumpID,
1.3544 + submittedCrashReport);
1.3545 + }
1.3546 +
1.3547 + instance->Destroy();
1.3548 + mInstances.RemoveElement(instance);
1.3549 + OnPluginInstanceDestroyed(crashedPluginTag);
1.3550 + }
1.3551 + }
1.3552 +
1.3553 + // Only after all instances have been invalidated is it safe to null
1.3554 + // out nsPluginTag.mPlugin. The next time we try to create an
1.3555 + // instance of this plugin we reload it (launch a new plugin process).
1.3556 +
1.3557 + crashedPluginTag->mPlugin = nullptr;
1.3558 +
1.3559 +#ifdef XP_WIN
1.3560 + CheckForDisabledWindows();
1.3561 +#endif
1.3562 +}
1.3563 +
1.3564 +nsNPAPIPluginInstance*
1.3565 +nsPluginHost::FindInstance(const char *mimetype)
1.3566 +{
1.3567 + for (uint32_t i = 0; i < mInstances.Length(); i++) {
1.3568 + nsNPAPIPluginInstance* instance = mInstances[i];
1.3569 +
1.3570 + const char* mt;
1.3571 + nsresult rv = instance->GetMIMEType(&mt);
1.3572 + if (NS_FAILED(rv))
1.3573 + continue;
1.3574 +
1.3575 + if (PL_strcasecmp(mt, mimetype) == 0)
1.3576 + return instance;
1.3577 + }
1.3578 +
1.3579 + return nullptr;
1.3580 +}
1.3581 +
1.3582 +nsNPAPIPluginInstance*
1.3583 +nsPluginHost::FindOldestStoppedInstance()
1.3584 +{
1.3585 + nsNPAPIPluginInstance *oldestInstance = nullptr;
1.3586 + TimeStamp oldestTime = TimeStamp::Now();
1.3587 + for (uint32_t i = 0; i < mInstances.Length(); i++) {
1.3588 + nsNPAPIPluginInstance *instance = mInstances[i];
1.3589 + if (instance->IsRunning())
1.3590 + continue;
1.3591 +
1.3592 + TimeStamp time = instance->StopTime();
1.3593 + if (time < oldestTime) {
1.3594 + oldestTime = time;
1.3595 + oldestInstance = instance;
1.3596 + }
1.3597 + }
1.3598 +
1.3599 + return oldestInstance;
1.3600 +}
1.3601 +
1.3602 +uint32_t
1.3603 +nsPluginHost::StoppedInstanceCount()
1.3604 +{
1.3605 + uint32_t stoppedCount = 0;
1.3606 + for (uint32_t i = 0; i < mInstances.Length(); i++) {
1.3607 + nsNPAPIPluginInstance *instance = mInstances[i];
1.3608 + if (!instance->IsRunning())
1.3609 + stoppedCount++;
1.3610 + }
1.3611 + return stoppedCount;
1.3612 +}
1.3613 +
1.3614 +nsTArray< nsRefPtr<nsNPAPIPluginInstance> >*
1.3615 +nsPluginHost::InstanceArray()
1.3616 +{
1.3617 + return &mInstances;
1.3618 +}
1.3619 +
1.3620 +void
1.3621 +nsPluginHost::DestroyRunningInstances(nsPluginTag* aPluginTag)
1.3622 +{
1.3623 + for (int32_t i = mInstances.Length(); i > 0; i--) {
1.3624 + nsNPAPIPluginInstance *instance = mInstances[i - 1];
1.3625 + if (instance->IsRunning() && (!aPluginTag || aPluginTag == TagForPlugin(instance->GetPlugin()))) {
1.3626 + instance->SetWindow(nullptr);
1.3627 + instance->Stop();
1.3628 +
1.3629 + // Get rid of all the instances without the possibility of caching.
1.3630 + nsPluginTag* pluginTag = TagForPlugin(instance->GetPlugin());
1.3631 + instance->SetWindow(nullptr);
1.3632 +
1.3633 + nsCOMPtr<nsIDOMElement> domElement;
1.3634 + instance->GetDOMElement(getter_AddRefs(domElement));
1.3635 + nsCOMPtr<nsIObjectLoadingContent> objectContent =
1.3636 + do_QueryInterface(domElement);
1.3637 +
1.3638 + instance->Destroy();
1.3639 +
1.3640 + mInstances.RemoveElement(instance);
1.3641 + OnPluginInstanceDestroyed(pluginTag);
1.3642 +
1.3643 + // Notify owning content that we destroyed its plugin out from under it
1.3644 + if (objectContent) {
1.3645 + objectContent->PluginDestroyed();
1.3646 + }
1.3647 + }
1.3648 + }
1.3649 +}
1.3650 +
1.3651 +// Runnable that does an async destroy of a plugin.
1.3652 +
1.3653 +class nsPluginDestroyRunnable : public nsRunnable,
1.3654 + public PRCList
1.3655 +{
1.3656 +public:
1.3657 + nsPluginDestroyRunnable(nsNPAPIPluginInstance *aInstance)
1.3658 + : mInstance(aInstance)
1.3659 + {
1.3660 + PR_INIT_CLIST(this);
1.3661 + PR_APPEND_LINK(this, &sRunnableListHead);
1.3662 + }
1.3663 +
1.3664 + virtual ~nsPluginDestroyRunnable()
1.3665 + {
1.3666 + PR_REMOVE_LINK(this);
1.3667 + }
1.3668 +
1.3669 + NS_IMETHOD Run()
1.3670 + {
1.3671 + nsRefPtr<nsNPAPIPluginInstance> instance;
1.3672 +
1.3673 + // Null out mInstance to make sure this code in another runnable
1.3674 + // will do the right thing even if someone was holding on to this
1.3675 + // runnable longer than we expect.
1.3676 + instance.swap(mInstance);
1.3677 +
1.3678 + if (PluginDestructionGuard::DelayDestroy(instance)) {
1.3679 + // It's still not safe to destroy the plugin, it's now up to the
1.3680 + // outermost guard on the stack to take care of the destruction.
1.3681 + return NS_OK;
1.3682 + }
1.3683 +
1.3684 + nsPluginDestroyRunnable *r =
1.3685 + static_cast<nsPluginDestroyRunnable*>(PR_NEXT_LINK(&sRunnableListHead));
1.3686 +
1.3687 + while (r != &sRunnableListHead) {
1.3688 + if (r != this && r->mInstance == instance) {
1.3689 + // There's another runnable scheduled to tear down
1.3690 + // instance. Let it do the job.
1.3691 + return NS_OK;
1.3692 + }
1.3693 + r = static_cast<nsPluginDestroyRunnable*>(PR_NEXT_LINK(r));
1.3694 + }
1.3695 +
1.3696 + PLUGIN_LOG(PLUGIN_LOG_NORMAL,
1.3697 + ("Doing delayed destroy of instance %p\n", instance.get()));
1.3698 +
1.3699 + nsRefPtr<nsPluginHost> host = nsPluginHost::GetInst();
1.3700 + if (host)
1.3701 + host->StopPluginInstance(instance);
1.3702 +
1.3703 + PLUGIN_LOG(PLUGIN_LOG_NORMAL,
1.3704 + ("Done with delayed destroy of instance %p\n", instance.get()));
1.3705 +
1.3706 + return NS_OK;
1.3707 + }
1.3708 +
1.3709 +protected:
1.3710 + nsRefPtr<nsNPAPIPluginInstance> mInstance;
1.3711 +
1.3712 + static PRCList sRunnableListHead;
1.3713 +};
1.3714 +
1.3715 +PRCList nsPluginDestroyRunnable::sRunnableListHead =
1.3716 + PR_INIT_STATIC_CLIST(&nsPluginDestroyRunnable::sRunnableListHead);
1.3717 +
1.3718 +PRCList PluginDestructionGuard::sListHead =
1.3719 + PR_INIT_STATIC_CLIST(&PluginDestructionGuard::sListHead);
1.3720 +
1.3721 +PluginDestructionGuard::PluginDestructionGuard(nsNPAPIPluginInstance *aInstance)
1.3722 + : mInstance(aInstance)
1.3723 +{
1.3724 + Init();
1.3725 +}
1.3726 +
1.3727 +PluginDestructionGuard::PluginDestructionGuard(NPP npp)
1.3728 + : mInstance(npp ? static_cast<nsNPAPIPluginInstance*>(npp->ndata) : nullptr)
1.3729 +{
1.3730 + Init();
1.3731 +}
1.3732 +
1.3733 +PluginDestructionGuard::~PluginDestructionGuard()
1.3734 +{
1.3735 + NS_ASSERTION(NS_IsMainThread(), "Should be on the main thread");
1.3736 +
1.3737 + PR_REMOVE_LINK(this);
1.3738 +
1.3739 + if (mDelayedDestroy) {
1.3740 + // We've attempted to destroy the plugin instance we're holding on
1.3741 + // to while we were guarding it. Do the actual destroy now, off of
1.3742 + // a runnable.
1.3743 + nsRefPtr<nsPluginDestroyRunnable> evt =
1.3744 + new nsPluginDestroyRunnable(mInstance);
1.3745 +
1.3746 + NS_DispatchToMainThread(evt);
1.3747 + }
1.3748 +}
1.3749 +
1.3750 +// static
1.3751 +bool
1.3752 +PluginDestructionGuard::DelayDestroy(nsNPAPIPluginInstance *aInstance)
1.3753 +{
1.3754 + NS_ASSERTION(NS_IsMainThread(), "Should be on the main thread");
1.3755 + NS_ASSERTION(aInstance, "Uh, I need an instance!");
1.3756 +
1.3757 + // Find the first guard on the stack and make it do a delayed
1.3758 + // destroy upon destruction.
1.3759 +
1.3760 + PluginDestructionGuard *g =
1.3761 + static_cast<PluginDestructionGuard*>(PR_LIST_HEAD(&sListHead));
1.3762 +
1.3763 + while (g != &sListHead) {
1.3764 + if (g->mInstance == aInstance) {
1.3765 + g->mDelayedDestroy = true;
1.3766 +
1.3767 + return true;
1.3768 + }
1.3769 + g = static_cast<PluginDestructionGuard*>(PR_NEXT_LINK(g));
1.3770 + }
1.3771 +
1.3772 + return false;
1.3773 +}
