1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #import <AppKit/AppKit.h> 6 7 #include "base/environment.h" 8 #include "base/memory/scoped_ptr.h" 9 #include "base/strings/string_util.h" 10 #include "content/common/plugin_carbon_interpose_constants_mac.h" 11 #include "content/plugin/plugin_interpose_util_mac.h" 12 #include "content/public/common/content_client.h" 13 14 namespace content { 15 16 #if !defined(__LP64__) 17 void TrimInterposeEnvironment() { 18 scoped_ptr<base::Environment> env(base::Environment::Create()); 19 20 std::string interpose_list; 21 if (!env->GetVar(kDYLDInsertLibrariesKey, &interpose_list)) { 22 VLOG(0) << "No Carbon Interpose library found."; 23 return; 24 } 25 26 // The list is a :-separated list of paths. Because we append our interpose 27 // library just before forking in plugin_process_host.cc, the only cases we 28 // need to handle are: 29 // 1) The whole string is "<kInterposeLibraryPath>", so just clear it, or 30 // 2) ":<kInterposeLibraryPath>" is the end of the string, so trim and re-set. 31 std::string interpose_library_path = 32 GetContentClient()->GetCarbonInterposePath(); 33 DCHECK_GE(interpose_list.size(), interpose_library_path.size()); 34 size_t suffix_offset = interpose_list.size() - interpose_library_path.size(); 35 if (suffix_offset == 0 && 36 interpose_list == interpose_library_path) { 37 env->UnSetVar(kDYLDInsertLibrariesKey); 38 } else if (suffix_offset > 0 && interpose_list[suffix_offset - 1] == ':' && 39 interpose_list.substr(suffix_offset) == interpose_library_path) { 40 std::string trimmed_list = interpose_list.substr(0, suffix_offset - 1); 41 env->SetVar(kDYLDInsertLibrariesKey, trimmed_list.c_str()); 42 } else { 43 NOTREACHED() << "Missing Carbon interposing library"; 44 } 45 } 46 #endif 47 48 void InitializeChromeApplication() { 49 [NSApplication sharedApplication]; 50 mac_plugin_interposing::SetUpCocoaInterposing(); 51 } 52 53 } // namespace content 54
