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 14namespace 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. 18NET_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. 25NET_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. 31NET_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". 37NET_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. 42NET_EXPORT bool IsSupportedImageMimeType(const std::string& mime_type); 43NET_EXPORT bool IsSupportedMediaMimeType(const std::string& mime_type); 44NET_EXPORT bool IsSupportedNonImageMimeType(const std::string& mime_type); 45NET_EXPORT bool IsUnsupportedTextMimeType(const std::string& mime_type); 46NET_EXPORT bool IsSupportedJavascriptMimeType(const std::string& mime_type); 47NET_EXPORT bool IsSupportedCertificateMimeType(const std::string& mime_type); 48 49// Convenience function. 50NET_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. 55NET_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 "*". 61NET_EXPORT bool IsMimeType(const std::string& type_string); 62 63// Returns true if and only if all codecs are supported, false otherwise. 64NET_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. 71NET_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. 77NET_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. 84NET_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. 93NET_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. 101NET_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 107NET_EXPORT const std::string GetIANAMediaType(const std::string& mime_type); 108 109// A list of supported certificate-related mime types. 110enum 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 116NET_EXPORT CertificateMimeType GetCertificateMimeTypeForMimeType( 117 const std::string& mime_type); 118 119// Prepares one value as part of a multi-part upload request. 120NET_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. 127NET_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