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 "mojo/services/html_viewer/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 namespace mojo {
15 namespace {
16
ToASCIIOrEmpty(const blink::WebString & string)17 std::string ToASCIIOrEmpty(const blink::WebString& string) {
18 return base::IsStringASCII(string) ? base::UTF16ToASCII(string)
19 : std::string();
20 }
21
22 } // namespace
23
supportsMIMEType(const blink::WebString & mime_type)24 blink::WebMimeRegistry::SupportsType WebMimeRegistryImpl::supportsMIMEType(
25 const blink::WebString& mime_type) {
26 return net::IsSupportedMimeType(ToASCIIOrEmpty(mime_type)) ?
27 blink::WebMimeRegistry::IsSupported :
28 blink::WebMimeRegistry::IsNotSupported;
29 }
30
supportsImageMIMEType(const blink::WebString & mime_type)31 blink::WebMimeRegistry::SupportsType WebMimeRegistryImpl::supportsImageMIMEType(
32 const blink::WebString& mime_type) {
33 return net::IsSupportedImageMimeType(ToASCIIOrEmpty(mime_type)) ?
34 blink::WebMimeRegistry::IsSupported :
35 blink::WebMimeRegistry::IsNotSupported;
36 }
37
38 blink::WebMimeRegistry::SupportsType
supportsImagePrefixedMIMEType(const blink::WebString & mime_type)39 WebMimeRegistryImpl::supportsImagePrefixedMIMEType(
40 const blink::WebString& mime_type) {
41 std::string ascii_mime_type = ToASCIIOrEmpty(mime_type);
42 return (net::IsSupportedImageMimeType(ascii_mime_type) ||
43 (StartsWithASCII(ascii_mime_type, "image/", true) &&
44 net::IsSupportedNonImageMimeType(ascii_mime_type)))
45 ? WebMimeRegistry::IsSupported
46 : WebMimeRegistry::IsNotSupported;
47 }
48
49 blink::WebMimeRegistry::SupportsType
supportsJavaScriptMIMEType(const blink::WebString & mime_type)50 WebMimeRegistryImpl::supportsJavaScriptMIMEType(
51 const blink::WebString& mime_type) {
52 return net::IsSupportedJavascriptMimeType(ToASCIIOrEmpty(mime_type)) ?
53 blink::WebMimeRegistry::IsSupported :
54 blink::WebMimeRegistry::IsNotSupported;
55 }
56
supportsMediaMIMEType(const blink::WebString & mime_type,const blink::WebString & codecs,const blink::WebString & key_system)57 blink::WebMimeRegistry::SupportsType WebMimeRegistryImpl::supportsMediaMIMEType(
58 const blink::WebString& mime_type,
59 const blink::WebString& codecs,
60 const blink::WebString& key_system) {
61 const std::string mime_type_ascii = ToASCIIOrEmpty(mime_type);
62 // Not supporting the container is a flat-out no.
63 if (!net::IsSupportedMediaMimeType(mime_type_ascii))
64 return IsNotSupported;
65
66 // Mojo does not currently support any key systems.
67 if (!key_system.isEmpty())
68 return IsNotSupported;
69
70 // Check list of strict codecs to see if it is supported.
71 if (net::IsStrictMediaMimeType(mime_type_ascii)) {
72 // Check if the codecs are a perfect match.
73 std::vector<std::string> strict_codecs;
74 net::ParseCodecString(ToASCIIOrEmpty(codecs), &strict_codecs, false);
75 return static_cast<WebMimeRegistry::SupportsType>(
76 net::IsSupportedStrictMediaMimeType(mime_type_ascii, strict_codecs));
77 }
78
79 // If we don't recognize the codec, it's possible we support it.
80 std::vector<std::string> parsed_codecs;
81 net::ParseCodecString(ToASCIIOrEmpty(codecs), &parsed_codecs, true);
82 if (!net::AreSupportedMediaCodecs(parsed_codecs))
83 return MayBeSupported;
84
85 // Otherwise we have a perfect match.
86 return IsSupported;
87 }
88
supportsMediaSourceMIMEType(const blink::WebString & mime_type,const blink::WebString & codecs)89 bool WebMimeRegistryImpl::supportsMediaSourceMIMEType(
90 const blink::WebString& mime_type,
91 const blink::WebString& codecs) {
92 NOTIMPLEMENTED();
93 return false;
94 }
95
supportsEncryptedMediaMIMEType(const blink::WebString & key_system,const blink::WebString & mime_type,const blink::WebString & codecs)96 bool WebMimeRegistryImpl::supportsEncryptedMediaMIMEType(
97 const blink::WebString& key_system,
98 const blink::WebString& mime_type,
99 const blink::WebString& codecs) {
100 NOTIMPLEMENTED();
101 return false;
102 }
103
104 blink::WebMimeRegistry::SupportsType
supportsNonImageMIMEType(const blink::WebString & mime_type)105 WebMimeRegistryImpl::supportsNonImageMIMEType(
106 const blink::WebString& mime_type) {
107 return net::IsSupportedNonImageMimeType(ToASCIIOrEmpty(mime_type)) ?
108 blink::WebMimeRegistry::IsSupported :
109 blink::WebMimeRegistry::IsNotSupported;
110 }
111
mimeTypeForExtension(const blink::WebString & file_extension)112 blink::WebString WebMimeRegistryImpl::mimeTypeForExtension(
113 const blink::WebString& file_extension) {
114 NOTIMPLEMENTED();
115 return blink::WebString();
116 }
117
wellKnownMimeTypeForExtension(const blink::WebString & file_extension)118 blink::WebString WebMimeRegistryImpl::wellKnownMimeTypeForExtension(
119 const blink::WebString& file_extension) {
120 NOTIMPLEMENTED();
121 return blink::WebString();
122 }
123
mimeTypeFromFile(const blink::WebString & file_path)124 blink::WebString WebMimeRegistryImpl::mimeTypeFromFile(
125 const blink::WebString& file_path) {
126 NOTIMPLEMENTED();
127 return blink::WebString();
128 }
129
130 } // namespace mojo
131