Index: chrome/common/pepper_flash.cc |
diff --git a/chrome/common/pepper_flash.cc b/chrome/common/pepper_flash.cc |
index 2e2140f6115c6f69161b85bdc96892e6ffe7eaa6..da1c00de65519dee1f77c0f9d5d7011c836b91ac 100644 |
--- a/chrome/common/pepper_flash.cc |
+++ b/chrome/common/pepper_flash.cc |
@@ -2,12 +2,128 @@ |
// Use of this source code is governed by a BSD-style license that can be |
// found in the LICENSE file. |
+#include "base/strings/string_split.h" |
+#include "base/values.h" |
+#include "base/version.h" |
#include "chrome/common/pepper_flash.h" |
- |
+#include "chrome/common/ppapi_utils.h" |
+#include "ppapi/c/private/ppb_pdf.h" |
#include "ppapi/shared_impl/ppapi_permissions.h" |
+namespace chrome { |
+ |
const int32 kPepperFlashPermissions = ppapi::PERMISSION_DEV | |
ppapi::PERMISSION_PRIVATE | |
ppapi::PERMISSION_BYPASS_USER_GESTURE | |
ppapi::PERMISSION_FLASH; |
+namespace { |
+ |
+// File name of the Pepper Flash component manifest on different platforms. |
+const char kPepperFlashManifestName[] = "Flapper"; |
+ |
+// Name of the Pepper Flash OS in the component manifest. |
+const char kPepperFlashOperatingSystem[] = |
+#if defined(OS_MACOSX) |
+ "mac"; |
+#elif defined(OS_WIN) |
+ "win"; |
+#else // OS_LINUX, etc. TODO(viettrungluu): Separate out Chrome OS and Android? |
+ "linux"; |
+#endif |
+ |
+// Name of the Pepper Flash architecture in the component manifest. |
+const char kPepperFlashArch[] = |
+#if defined(ARCH_CPU_X86) |
+ "ia32"; |
+#elif defined(ARCH_CPU_X86_64) |
+ "x64"; |
+#else // TODO(viettrungluu): Support an ARM check? |
+ "???"; |
+#endif |
+ |
+// Returns true if the Pepper |interface_name| is implemented by this browser. |
+// It does not check if the interface is proxied. |
+bool SupportsPepperInterface(const char* interface_name) { |
+ if (IsSupportedPepperInterface(interface_name)) |
+ return true; |
+ // The PDF interface is invisible to SupportsInterface() on the browser |
+ // process because it is provided using PpapiInterfaceFactoryManager. We need |
+ // to check for that as well. |
+ // TODO(cpu): make this more sane. |
+ return (strcmp(interface_name, PPB_PDF_INTERFACE) == 0); |
+} |
+ |
+// Returns true if this browser implements one of the interfaces given in |
+// |interface_string|, which is a '|'-separated string of interface names. |
+bool CheckPepperFlashInterfaceString(const std::string& interface_string) { |
+ std::vector<std::string> interface_names; |
+ base::SplitString(interface_string, '|', &interface_names); |
+ for (size_t i = 0; i < interface_names.size(); i++) { |
+ if (SupportsPepperInterface(interface_names[i].c_str())) |
+ return true; |
+ } |
+ return false; |
+} |
+ |
+// Returns true if this browser implements all the interfaces that Flash |
+// specifies in its component installer manifest. |
+bool CheckPepperFlashInterfaces(const base::DictionaryValue& manifest) { |
+ const base::ListValue* interface_list = NULL; |
+ |
+ // We don't *require* an interface list, apparently. |
+ if (!manifest.GetList("x-ppapi-required-interfaces", &interface_list)) |
+ return true; |
+ |
+ for (size_t i = 0; i < interface_list->GetSize(); i++) { |
+ std::string interface_string; |
+ if (!interface_list->GetString(i, &interface_string)) |
+ return false; |
+ if (!CheckPepperFlashInterfaceString(interface_string)) |
+ return false; |
+ } |
+ |
+ return true; |
+} |
+ |
+} // namespace |
+ |
+bool CheckPepperFlashManifest(const base::DictionaryValue& manifest, |
+ Version* version_out) { |
+ std::string name; |
+ manifest.GetStringASCII("name", &name); |
+ // TODO(viettrungluu): Support WinFlapper for now, while we change the format |
+ // of the manifest. (Should be safe to remove checks for "WinFlapper" in, say, |
+ // Nov. 2011.) crbug.com/98458 |
+ if (name != kPepperFlashManifestName && name != "WinFlapper") |
+ return false; |
+ |
+ std::string proposed_version; |
+ manifest.GetStringASCII("version", &proposed_version); |
+ Version version(proposed_version.c_str()); |
+ if (!version.IsValid()) |
+ return false; |
+ |
+ if (!CheckPepperFlashInterfaces(manifest)) |
+ return false; |
+ |
+ // TODO(viettrungluu): See above TODO. |
+ if (name == "WinFlapper") { |
+ *version_out = version; |
+ return true; |
+ } |
+ |
+ std::string os; |
+ manifest.GetStringASCII("x-ppapi-os", &os); |
+ if (os != kPepperFlashOperatingSystem) |
+ return false; |
+ |
+ std::string arch; |
+ manifest.GetStringASCII("x-ppapi-arch", &arch); |
+ if (arch != kPepperFlashArch) |
+ return false; |
+ |
+ *version_out = version; |
+ return true; |
+} |
+} // namespace chrome |