1 // Copyright (c) 2012 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 #ifndef NET_BASE_MIME_UTIL_H__ 6 #define NET_BASE_MIME_UTIL_H__ 7 8 #include <string> 9 #include <vector> 10 11 #include "base/files/file_path.h" 12 #include "net/base/net_export.h" 13 14 namespace net { 15 16 // Get the mime type (if any) that is associated with the given file extension. 17 // Returns true if a corresponding mime type exists. 18 NET_EXPORT bool GetMimeTypeFromExtension(const base::FilePath::StringType& ext, 19 std::string* mime_type); 20 21 // Get the mime type (if any) that is associated with the given file extension. 22 // Returns true if a corresponding mime type exists. In this method, 23 // the search for a mime type is constrained to a limited set of 24 // types known to the net library, the OS/registry is not consulted. 25 NET_EXPORT bool GetWellKnownMimeTypeFromExtension( 26 const base::FilePath::StringType& ext, 27 std::string* mime_type); 28 29 // Get the mime type (if any) that is associated with the given file. Returns 30 // true if a corresponding mime type exists. 31 NET_EXPORT bool GetMimeTypeFromFile(const base::FilePath& file_path, 32 std::string* mime_type); 33 34 // Get the preferred extension (if any) associated with the given mime type. 35 // Returns true if a corresponding file extension exists. The extension is 36 // returned without a prefixed dot, ex "html". 37 NET_EXPORT bool GetPreferredExtensionForMimeType( 38 const std::string& mime_type, 39 base::FilePath::StringType* extension); 40 41 // Check to see if a particular MIME type is in our list. 42 NET_EXPORT bool IsSupportedImageMimeType(const std::string& mime_type); 43 NET_EXPORT bool IsSupportedMediaMimeType(const std::string& mime_type); 44 NET_EXPORT bool IsSupportedNonImageMimeType(const std::string& mime_type); 45 NET_EXPORT bool IsUnsupportedTextMimeType(const std::string& mime_type); 46 NET_EXPORT bool IsSupportedJavascriptMimeType(const std::string& mime_type); 47 NET_EXPORT bool IsSupportedCertificateMimeType(const std::string& mime_type); 48 49 // Convenience function. 50 NET_EXPORT bool IsSupportedMimeType(const std::string& mime_type); 51 52 // Returns true if this the mime_type_pattern matches a given mime-type. 53 // Checks for absolute matching and wildcards. mime-types should be in 54 // lower case. 55 NET_EXPORT bool MatchesMimeType(const std::string& mime_type_pattern, 56 const std::string& mime_type); 57 58 // Returns true if the |type_string| is a correctly-formed mime type specifier. 59 // Allows strings of the form x/y[;params], where "x" is a legal mime type name. 60 // Also allows wildcard types -- "x/*", "*/*", and "*". 61 NET_EXPORT bool IsMimeType(const std::string& type_string); 62 63 // Returns true if and only if all codecs are supported, false otherwise. 64 NET_EXPORT bool AreSupportedMediaCodecs(const std::vector<std::string>& codecs); 65 66 // Parses a codec string, populating |codecs_out| with the prefix of each codec 67 // in the string |codecs_in|. For example, passed "aaa.b.c,dd.eee", if 68 // |strip| == true |codecs_out| will contain {"aaa", "dd"}, if |strip| == false 69 // |codecs_out| will contain {"aaa.b.c", "dd.eee"}. 70 // See http://www.ietf.org/rfc/rfc4281.txt. 71 NET_EXPORT void ParseCodecString(const std::string& codecs, 72 std::vector<std::string>* codecs_out, 73 bool strip); 74 75 // Check to see if a particular MIME type is in our list which only supports a 76 // certain subset of codecs. 77 NET_EXPORT bool IsStrictMediaMimeType(const std::string& mime_type); 78 79 // Check to see if a particular MIME type is in our list which only supports a 80 // certain subset of codecs. Returns true if and only if all codecs are 81 // supported for that specific MIME type, false otherwise. If this returns 82 // false you will still need to check if the media MIME tpyes and codecs are 83 // supported. 84 NET_EXPORT bool IsSupportedStrictMediaMimeType( 85 const std::string& mime_type, 86 const std::vector<std::string>& codecs); 87 88 // Get the extensions associated with the given mime type. This should be passed 89 // in lower case. There could be multiple extensions for a given mime type, like 90 // "html,htm" for "text/html", or "txt,text,html,..." for "text/*". 91 // Note that we do not erase the existing elements in the the provided vector. 92 // Instead, we append the result to it. 93 NET_EXPORT void GetExtensionsForMimeType( 94 const std::string& mime_type, 95 std::vector<base::FilePath::StringType>* extensions); 96 97 // Test only method that removes proprietary media types and codecs from the 98 // list of supported MIME types and codecs. These types and codecs must be 99 // removed to ensure consistent layout test results across all Chromium 100 // variations. 101 NET_EXPORT void RemoveProprietaryMediaTypesAndCodecsForTests(); 102 103 // Returns the IANA media type contained in |mime_type|, or an empty 104 // string if |mime_type| does not specifify a known media type. 105 // Supported media types are defined at: 106 // http://www.iana.org/assignments/media-types/index.html 107 NET_EXPORT const std::string GetIANAMediaType(const std::string& mime_type); 108 109 // A list of supported certificate-related mime types. 110 enum CertificateMimeType { 111 #define CERTIFICATE_MIME_TYPE(name, value) CERTIFICATE_MIME_TYPE_ ## name = value, 112 #include "net/base/mime_util_certificate_type_list.h" 113 #undef CERTIFICATE_MIME_TYPE 114 }; 115 116 NET_EXPORT CertificateMimeType GetCertificateMimeTypeForMimeType( 117 const std::string& mime_type); 118 119 // Prepares one value as part of a multi-part upload request. 120 NET_EXPORT void AddMultipartValueForUpload(const std::string& value_name, 121 const std::string& value, 122 const std::string& mime_boundary, 123 const std::string& content_type, 124 std::string* post_data); 125 126 // Adds the final delimiter to a multi-part upload request. 127 NET_EXPORT void AddMultipartFinalDelimiterForUpload( 128 const std::string& mime_boundary, 129 std::string* post_data); 130 131 } // namespace net 132 133 #endif // NET_BASE_MIME_UTIL_H__ 134
