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
14using blink::WebString;
15using blink::WebMimeRegistry;
16
17namespace content {
18
19//static
20std::string SimpleWebMimeRegistryImpl::ToASCIIOrEmpty(const WebString& string) {
21  return base::IsStringASCII(string) ? base::UTF16ToASCII(string)
22                                     : std::string();
23}
24
25WebMimeRegistry::SupportsType SimpleWebMimeRegistryImpl::supportsMIMEType(
26    const WebString& mime_type) {
27  return net::IsSupportedMimeType(ToASCIIOrEmpty(mime_type)) ?
28      WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
29}
30
31WebMimeRegistry::SupportsType SimpleWebMimeRegistryImpl::supportsImageMIMEType(
32    const WebString& mime_type) {
33  return net::IsSupportedImageMimeType(ToASCIIOrEmpty(mime_type)) ?
34      WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
35}
36
37WebMimeRegistry::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
47WebMimeRegistry::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.
56WebMimeRegistry::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
64bool 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
71bool SimpleWebMimeRegistryImpl::supportsEncryptedMediaMIMEType(
72    const blink::WebString& key_system,
73    const blink::WebString& mime_type,
74    const blink::WebString& codecs) {
75  // Media features are only supported at the content/renderer layer.
76  return false;
77}
78
79WebMimeRegistry::SupportsType
80    SimpleWebMimeRegistryImpl::supportsNonImageMIMEType(
81    const WebString& mime_type) {
82  return net::IsSupportedNonImageMimeType(ToASCIIOrEmpty(mime_type)) ?
83      WebMimeRegistry::IsSupported : WebMimeRegistry::IsNotSupported;
84}
85
86WebString SimpleWebMimeRegistryImpl::mimeTypeForExtension(
87    const WebString& file_extension) {
88  std::string mime_type;
89  net::GetMimeTypeFromExtension(
90      base::FilePath::FromUTF16Unsafe(file_extension).value(), &mime_type);
91  return WebString::fromUTF8(mime_type);
92}
93
94WebString SimpleWebMimeRegistryImpl::wellKnownMimeTypeForExtension(
95    const WebString& file_extension) {
96  std::string mime_type;
97  net::GetWellKnownMimeTypeFromExtension(
98      base::FilePath::FromUTF16Unsafe(file_extension).value(), &mime_type);
99  return WebString::fromUTF8(mime_type);
100}
101
102WebString SimpleWebMimeRegistryImpl::mimeTypeFromFile(
103    const WebString& file_path) {
104  std::string mime_type;
105  net::GetMimeTypeFromFile(base::FilePath::FromUTF16Unsafe(file_path),
106                           &mime_type);
107  return WebString::fromUTF8(mime_type);
108}
109
110}  // namespace content
111