content/child/simple_webmimeregistry_impl.cc

   1 // Copyright 2014 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 #include "content/child/simple_webmimeregistry_impl.h"
   6
   7 #include "base/files/file_path.h"
   8 #include "base/strings/string_util.h"
   9 #include "base/strings/sys_string_conversions.h"
  10 #include "base/strings/utf_string_conversions.h"
  11 #include "net/base/mime_util.h"
  12 #include "third_party/WebKit/public/platform/WebString.h"
  13
  14 using blink::WebString;
  15 using blink::WebMimeRegistry;
  16
  17 namespace content {
  18
  19 //static
  20 std::string SimpleWebMimeRegistryImpl::ToASCIIOrEmpty(const WebString& string) {
  21   return base::IsStringASCII(string) ? base::UTF16ToASCII(string)
  22                                      : std::string();
  23 }
  24
  25 WebMimeRegistry::SupportsType SimpleWebMimeRegistryImpl::supportsMIMEType(
  26     const WebString& mime_type) {
  27   return net::IsSupportedMimeType(ToASCIIOrEmpty(mime_type)) ?
  28       WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
  29 }
  30
  31 WebMimeRegistry::SupportsType SimpleWebMimeRegistryImpl::supportsImageMIMEType(
  32     const WebString& mime_type) {
  33   return net::IsSupportedImageMimeType(ToASCIIOrEmpty(mime_type)) ?
  34       WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
  35 }
  36
  37 WebMimeRegistry::SupportsType
  38     SimpleWebMimeRegistryImpl::supportsImagePrefixedMIMEType(
  39     const WebString& mime_type) {
  40     std::string ascii_mime_type = ToASCIIOrEmpty(mime_type);
  41   return (net::IsSupportedImageMimeType(ascii_mime_type) ||
  42           (StartsWithASCII(ascii_mime_type, "image/", true) &&
  43            net::IsSupportedNonImageMimeType(ascii_mime_type))) ?
  44       WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
  45 }
  46
  47 WebMimeRegistry::SupportsType
  48     SimpleWebMimeRegistryImpl::supportsJavaScriptMIMEType(
  49     const WebString& mime_type) {
  50   return net::IsSupportedJavascriptMimeType(ToASCIIOrEmpty(mime_type)) ?
  51       WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
  52 }
  53
  54 // When debugging layout tests failures in the test shell,
  55 // see TestShellWebMimeRegistryImpl.
  56 WebMimeRegistry::SupportsType SimpleWebMimeRegistryImpl::supportsMediaMIMEType(
  57     const WebString& mime_type,
  58     const WebString& codecs,
  59     const WebString& key_system) {
  60   // Media features are only supported at the content/renderer/ layer.
  61   return IsNotSupported;
  62 }
  63
  64 bool SimpleWebMimeRegistryImpl::supportsMediaSourceMIMEType(
  65     const WebString& mime_type,
  66     const WebString& codecs) {
  67   // Media features are only supported at the content/renderer layer.
  68   return false;
  69 }
  70
  71 WebMimeRegistry::SupportsType
  72     SimpleWebMimeRegistryImpl::supportsNonImageMIMEType(
  73     const WebString& mime_type) {
  74   return net::IsSupportedNonImageMimeType(ToASCIIOrEmpty(mime_type)) ?
  75       WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
  76 }
  77
  78 WebString SimpleWebMimeRegistryImpl::mimeTypeForExtension(
  79     const WebString& file_extension) {
  80   std::string mime_type;
  81   net::GetMimeTypeFromExtension(
  82       base::FilePath::FromUTF16Unsafe(file_extension).value(), &mime_type);
  83   return WebString::fromUTF8(mime_type);
  84 }
  85
  86 WebString SimpleWebMimeRegistryImpl::wellKnownMimeTypeForExtension(
  87     const WebString& file_extension) {
  88   std::string mime_type;
  89   net::GetWellKnownMimeTypeFromExtension(
  90       base::FilePath::FromUTF16Unsafe(file_extension).value(), &mime_type);
  91   return WebString::fromUTF8(mime_type);
  92 }
  93
  94 WebString SimpleWebMimeRegistryImpl::mimeTypeFromFile(
  95     const WebString& file_path) {
  96   std::string mime_type;
  97   net::GetMimeTypeFromFile(base::FilePath::FromUTF16Unsafe(file_path),
  98                            &mime_type);
  99   return WebString::fromUTF8(mime_type);
 100 }
 101
 102 }  // namespace content