Revert 138502 - Move version metadata from PluginGroup into PluginInstaller.

webkit/plugins/npapi/plugin_group.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <algorithm>
 
 #include "webkit/plugins/npapi/plugin_group.h"
 
 #include "base/memory/linked_ptr.h"
 #include "base/string_util.h"
 #include "base/sys_string_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "base/version.h"
 #include "webkit/plugins/npapi/plugin_list.h"
 #include "webkit/plugins/webplugininfo.h"
 
 namespace webkit {
 namespace npapi {
 
 // static
 const char PluginGroup::kAdobeReaderGroupName[] = "Adobe Acrobat";
 const char PluginGroup::kJavaGroupName[] = "Java";
 const char PluginGroup::kQuickTimeGroupName[] = "QuickTime";
 const char PluginGroup::kShockwaveGroupName[] = "Shockwave";
 const char PluginGroup::kRealPlayerGroupName[] = "RealPlayer";
 const char PluginGroup::kSilverlightGroupName[] = "Silverlight";
 const char PluginGroup::kWindowsMediaPlayerGroupName[] = "Windows Media Player";
 
+VersionRange::VersionRange(const VersionRangeDefinition& definition)
+    : low_str(definition.version_matcher_low),
+      high_str(definition.version_matcher_high),
+      min_str(definition.min_version) {
+  if (!low_str.empty())
+    low.reset(Version::GetVersionFromString(low_str));
+  if (!high_str.empty())
+    high.reset(Version::GetVersionFromString(high_str));
+  if (!min_str.empty())
+    min.reset(Version::GetVersionFromString(min_str));
+}
+
+VersionRange::VersionRange(const VersionRange& other) {
+  InitFrom(other);
+}
+
+VersionRange& VersionRange::operator=(const VersionRange& other) {
+  InitFrom(other);
+  return *this;
+}
+
+VersionRange::~VersionRange() {}
+
+void VersionRange::InitFrom(const VersionRange& other) {
+  low_str = other.low_str;
+  high_str = other.high_str;
+  min_str = other.min_str;
+  low.reset(Version::GetVersionFromString(other.low_str));
+  high.reset(Version::GetVersionFromString(other.high_str));
+  min.reset(Version::GetVersionFromString(other.min_str));
+}
+
 PluginGroup::PluginGroup(const string16& group_name,
                          const string16& name_matcher,
                          const std::string& identifier)
     : identifier_(identifier),
       group_name_(group_name),
       name_matcher_(name_matcher) {
 }
 
 void PluginGroup::InitFrom(const PluginGroup& other) {
   identifier_ = other.identifier_;
   group_name_ = other.group_name_;
   name_matcher_ = other.name_matcher_;
+  version_ranges_ = other.version_ranges_;
   web_plugin_infos_ = other.web_plugin_infos_;
 }
 
 PluginGroup::PluginGroup(const PluginGroup& other) {
   InitFrom(other);
 }
 
 PluginGroup& PluginGroup::operator=(const PluginGroup& other) {
   InitFrom(other);
   return *this;
 }
 
 /*static*/
 PluginGroup* PluginGroup::FromPluginGroupDefinition(
     const PluginGroupDefinition& definition) {
-  return new PluginGroup(ASCIIToUTF16(definition.name),
-                                      ASCIIToUTF16(definition.name_matcher),
-                                      definition.identifier);
+  PluginGroup* group = new PluginGroup(ASCIIToUTF16(definition.name),
+                                       ASCIIToUTF16(definition.name_matcher),
+                                       definition.identifier);
+  for (size_t i = 0; i < definition.num_versions; ++i)
+    group->version_ranges_.push_back(VersionRange(definition.versions[i]));
+  return group;
 }
 
 PluginGroup::~PluginGroup() { }
 
 /*static*/
 std::string PluginGroup::GetIdentifier(const WebPluginInfo& wpi) {
 #if defined(OS_POSIX)
   return wpi.path.BaseName().value();
 #elif defined(OS_WIN)
   return base::SysWideToUTF8(wpi.path.BaseName().value());
@@ skipping 19 matching lines @@
 bool PluginGroup::Match(const WebPluginInfo& plugin) const {
   if (name_matcher_.empty()) {
     return false;
   }
 
   // Look for the name matcher anywhere in the plugin name.
   if (plugin.name.find(name_matcher_) == string16::npos) {
     return false;
   }
 
-  return true;
+  if (version_ranges_.empty()) {
+    return true;
+  }
+
+  // There's at least one version range, the plugin's version must be in it.
+  scoped_ptr<Version> plugin_version(CreateVersionFromString(plugin.version));
+  if (plugin_version.get() == NULL) {
+    // No version could be extracted, assume we don't match the range.
+    return false;
+  }
+
+  // Match if the plugin is contained in any of the defined VersionRanges.
+  for (size_t i = 0; i < version_ranges_.size(); ++i) {
+    if (IsVersionInRange(*plugin_version, version_ranges_[i])) {
+      return true;
+    }
+  }
+  // None of the VersionRanges matched.
+  return false;
 }
 
 /* static */
 Version* PluginGroup::CreateVersionFromString(const string16& version_string) {
   // Remove spaces and ')' from the version string,
   // Replace any instances of 'r', ',' or '(' with a dot.
   std::string version = UTF16ToASCII(version_string);
   RemoveChars(version, ") ", &version);
   std::replace(version.begin(), version.end(), 'd', '.');
   std::replace(version.begin(), version.end(), 'r', '.');
@@ skipping 42 matching lines @@
 }
 
 bool PluginGroup::ContainsPlugin(const FilePath& path) const {
   for (size_t i = 0; i < web_plugin_infos_.size(); ++i) {
     if (web_plugin_infos_[i].path == path)
       return true;
   }
   return false;
 }
 
+/*static*/
+bool PluginGroup::IsVersionInRange(const Version& version,
+                                   const VersionRange& range) {
+  DCHECK(range.low.get() != NULL || range.high.get() == NULL)
+      << "Lower bound of version range must be defined.";
+  return (range.low.get() == NULL && range.high.get() == NULL) ||
+         (range.low->CompareTo(version) <= 0 &&
+             (range.high.get() == NULL || range.high->CompareTo(version) > 0));
+}
+
+/*static*/
+bool PluginGroup::IsPluginOutdated(const Version& plugin_version,
+                                   const VersionRange& version_range) {
+  if (IsVersionInRange(plugin_version, version_range)) {
+    if (version_range.min.get() &&
+        plugin_version.CompareTo(*version_range.min) < 0) {
+      return true;
+    }
+  }
+  return false;
+}
+
+// Returns true if the latest version of this plugin group is vulnerable.
+bool PluginGroup::IsVulnerable(const WebPluginInfo& plugin) const {
+  scoped_ptr<Version> version(CreateVersionFromString(plugin.version));
+  if (!version.get())
+    return false;
+
+  for (size_t i = 0; i < version_ranges_.size(); ++i) {
+    if (IsPluginOutdated(*version, version_ranges_[i]))
+      return true;
+  }
+  return false;
+}
+
 bool PluginGroup::IsEmpty() const {
   return web_plugin_infos_.empty();
 }
 
 }  // namespace npapi
 }  // namespace webkit