bpo-4963: Fix for initialization and non-deterministic behavior issues in mimetypes (GH-3062)
This commit is contained in:
David K. Hess
Steve Dower
parent
8bd2872adb
commit
9fc720e5e4
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@ -93,6 +93,10 @@ behavior of the module.
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Specifying an empty list for *files* will prevent the system defaults from
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being applied: only the well-known values will be present from a built-in list.
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If *files* is ``None`` the internal data structure is completely rebuilt to its
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initial default value. This is a stable operation and will produce the same results
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when called multiple times.
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.. versionchanged:: 3.2
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Previously, Windows registry settings were ignored.
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259
Lib/mimetypes.py
259
Lib/mimetypes.py
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@ -66,13 +66,13 @@ class MimeTypes:
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def __init__(self, filenames=(), strict=True):
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if not inited:
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init()
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self.encodings_map = encodings_map.copy()
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self.suffix_map = suffix_map.copy()
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self.encodings_map = _encodings_map_default.copy()
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self.suffix_map = _suffix_map_default.copy()
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self.types_map = ({}, {}) # dict for (non-strict, strict)
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self.types_map_inv = ({}, {})
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for (ext, type) in types_map.items():
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for (ext, type) in _types_map_default.items():
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self.add_type(type, ext, True)
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for (ext, type) in common_types.items():
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for (ext, type) in _common_types_default.items():
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self.add_type(type, ext, False)
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for name in filenames:
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self.read(name, strict)
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@ -346,11 +346,19 @@ def init(files=None):
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global suffix_map, types_map, encodings_map, common_types
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global inited, _db
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inited = True # so that MimeTypes.__init__() doesn't call us again
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db = MimeTypes()
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if files is None:
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if files is None or _db is None:
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db = MimeTypes()
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if _winreg:
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db.read_windows_registry()
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files = knownfiles
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if files is None:
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files = knownfiles
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else:
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files = knownfiles + list(files)
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else:
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db = _db
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for file in files:
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if os.path.isfile(file):
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db.read(file)
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@ -374,12 +382,12 @@ def read_mime_types(file):
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def _default_mime_types():
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global suffix_map
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global encodings_map
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global types_map
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global common_types
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global suffix_map, _suffix_map_default
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global encodings_map, _encodings_map_default
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global types_map, _types_map_default
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global common_types, _common_types_default
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suffix_map = {
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suffix_map = _suffix_map_default = {
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'.svgz': '.svg.gz',
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'.tgz': '.tar.gz',
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'.taz': '.tar.gz',
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@ -388,7 +396,7 @@ def _default_mime_types():
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'.txz': '.tar.xz',
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}
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encodings_map = {
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encodings_map = _encodings_map_default = {
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'.gz': 'gzip',
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'.Z': 'compress',
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'.bz2': 'bzip2',
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@ -399,152 +407,155 @@ def _default_mime_types():
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# at http://www.iana.org/assignments/media-types
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# or extensions, i.e. using the x- prefix
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# If you add to these, please keep them sorted!
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types_map = {
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'.a' : 'application/octet-stream',
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'.ai' : 'application/postscript',
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'.aif' : 'audio/x-aiff',
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'.aifc' : 'audio/x-aiff',
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'.aiff' : 'audio/x-aiff',
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'.au' : 'audio/basic',
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'.avi' : 'video/x-msvideo',
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'.bat' : 'text/plain',
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'.bcpio' : 'application/x-bcpio',
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'.bin' : 'application/octet-stream',
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'.bmp' : 'image/bmp',
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'.c' : 'text/plain',
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'.cdf' : 'application/x-netcdf',
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'.cpio' : 'application/x-cpio',
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'.csh' : 'application/x-csh',
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'.css' : 'text/css',
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'.csv' : 'text/csv',
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'.dll' : 'application/octet-stream',
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# If you add to these, please keep them sorted by mime type.
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# Make sure the entry with the preferred file extension for a particular mime type
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# appears before any others of the same mimetype.
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types_map = _types_map_default = {
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'.js' : 'application/javascript',
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'.mjs' : 'application/javascript',
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'.json' : 'application/json',
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'.doc' : 'application/msword',
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'.dot' : 'application/msword',
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'.dvi' : 'application/x-dvi',
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'.eml' : 'message/rfc822',
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'.eps' : 'application/postscript',
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'.etx' : 'text/x-setext',
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'.wiz' : 'application/msword',
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'.bin' : 'application/octet-stream',
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'.a' : 'application/octet-stream',
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'.dll' : 'application/octet-stream',
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'.exe' : 'application/octet-stream',
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'.gif' : 'image/gif',
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'.gtar' : 'application/x-gtar',
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'.h' : 'text/plain',
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'.hdf' : 'application/x-hdf',
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'.htm' : 'text/html',
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'.html' : 'text/html',
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'.ico' : 'image/vnd.microsoft.icon',
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'.ief' : 'image/ief',
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'.jpe' : 'image/jpeg',
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'.jpeg' : 'image/jpeg',
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'.jpg' : 'image/jpeg',
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'.js' : 'application/javascript',
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'.json' : 'application/json',
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'.ksh' : 'text/plain',
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'.latex' : 'application/x-latex',
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'.m1v' : 'video/mpeg',
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'.m3u' : 'application/vnd.apple.mpegurl',
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'.m3u8' : 'application/vnd.apple.mpegurl',
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'.man' : 'application/x-troff-man',
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'.me' : 'application/x-troff-me',
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'.mht' : 'message/rfc822',
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'.mhtml' : 'message/rfc822',
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'.mif' : 'application/x-mif',
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'.mjs' : 'application/javascript',
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'.mov' : 'video/quicktime',
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'.movie' : 'video/x-sgi-movie',
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'.mp2' : 'audio/mpeg',
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'.mp3' : 'audio/mpeg',
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'.mp4' : 'video/mp4',
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'.mpa' : 'video/mpeg',
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'.mpe' : 'video/mpeg',
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'.mpeg' : 'video/mpeg',
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'.mpg' : 'video/mpeg',
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'.ms' : 'application/x-troff-ms',
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'.nc' : 'application/x-netcdf',
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'.nws' : 'message/rfc822',
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'.o' : 'application/octet-stream',
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'.obj' : 'application/octet-stream',
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'.so' : 'application/octet-stream',
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'.oda' : 'application/oda',
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'.p12' : 'application/x-pkcs12',
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'.p7c' : 'application/pkcs7-mime',
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'.pbm' : 'image/x-portable-bitmap',
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'.pdf' : 'application/pdf',
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'.pfx' : 'application/x-pkcs12',
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'.pgm' : 'image/x-portable-graymap',
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'.pl' : 'text/plain',
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'.png' : 'image/png',
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'.pnm' : 'image/x-portable-anymap',
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'.p7c' : 'application/pkcs7-mime',
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'.ps' : 'application/postscript',
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'.ai' : 'application/postscript',
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'.eps' : 'application/postscript',
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'.m3u' : 'application/vnd.apple.mpegurl',
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'.m3u8' : 'application/vnd.apple.mpegurl',
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'.xls' : 'application/vnd.ms-excel',
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'.xlb' : 'application/vnd.ms-excel',
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'.ppt' : 'application/vnd.ms-powerpoint',
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'.pot' : 'application/vnd.ms-powerpoint',
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'.ppa' : 'application/vnd.ms-powerpoint',
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'.ppm' : 'image/x-portable-pixmap',
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'.pps' : 'application/vnd.ms-powerpoint',
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'.ppt' : 'application/vnd.ms-powerpoint',
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'.ps' : 'application/postscript',
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'.pwz' : 'application/vnd.ms-powerpoint',
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'.py' : 'text/x-python',
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'.wasm' : 'application/wasm',
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'.bcpio' : 'application/x-bcpio',
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'.cpio' : 'application/x-cpio',
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'.csh' : 'application/x-csh',
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'.dvi' : 'application/x-dvi',
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'.gtar' : 'application/x-gtar',
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'.hdf' : 'application/x-hdf',
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'.latex' : 'application/x-latex',
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'.mif' : 'application/x-mif',
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'.cdf' : 'application/x-netcdf',
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'.nc' : 'application/x-netcdf',
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'.p12' : 'application/x-pkcs12',
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'.pfx' : 'application/x-pkcs12',
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'.ram' : 'application/x-pn-realaudio',
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'.pyc' : 'application/x-python-code',
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'.pyo' : 'application/x-python-code',
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'.qt' : 'video/quicktime',
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'.ra' : 'audio/x-pn-realaudio',
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'.ram' : 'application/x-pn-realaudio',
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'.ras' : 'image/x-cmu-raster',
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'.rdf' : 'application/xml',
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'.rgb' : 'image/x-rgb',
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'.roff' : 'application/x-troff',
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'.rtx' : 'text/richtext',
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'.sgm' : 'text/x-sgml',
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'.sgml' : 'text/x-sgml',
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'.sh' : 'application/x-sh',
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'.shar' : 'application/x-shar',
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'.snd' : 'audio/basic',
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'.so' : 'application/octet-stream',
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'.src' : 'application/x-wais-source',
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'.swf' : 'application/x-shockwave-flash',
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'.sv4cpio': 'application/x-sv4cpio',
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'.sv4crc' : 'application/x-sv4crc',
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'.svg' : 'image/svg+xml',
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'.swf' : 'application/x-shockwave-flash',
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'.t' : 'application/x-troff',
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'.tar' : 'application/x-tar',
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'.tcl' : 'application/x-tcl',
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'.tex' : 'application/x-tex',
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'.texi' : 'application/x-texinfo',
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'.texinfo': 'application/x-texinfo',
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'.tif' : 'image/tiff',
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'.tiff' : 'image/tiff',
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'.roff' : 'application/x-troff',
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'.t' : 'application/x-troff',
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'.tr' : 'application/x-troff',
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'.tsv' : 'text/tab-separated-values',
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'.txt' : 'text/plain',
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'.man' : 'application/x-troff-man',
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'.me' : 'application/x-troff-me',
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'.ms' : 'application/x-troff-ms',
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'.ustar' : 'application/x-ustar',
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'.vcf' : 'text/x-vcard',
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'.wasm' : 'application/wasm',
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'.wav' : 'audio/x-wav',
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'.webm' : 'video/webm',
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'.wiz' : 'application/msword',
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'.wsdl' : 'application/xml',
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'.xbm' : 'image/x-xbitmap',
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'.xlb' : 'application/vnd.ms-excel',
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'.xls' : 'application/vnd.ms-excel',
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'.xml' : 'text/xml',
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'.xpdl' : 'application/xml',
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'.xpm' : 'image/x-xpixmap',
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'.src' : 'application/x-wais-source',
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'.xsl' : 'application/xml',
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'.xwd' : 'image/x-xwindowdump',
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'.rdf' : 'application/xml',
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'.wsdl' : 'application/xml',
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'.xpdl' : 'application/xml',
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'.zip' : 'application/zip',
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'.au' : 'audio/basic',
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'.snd' : 'audio/basic',
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'.mp3' : 'audio/mpeg',
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'.mp2' : 'audio/mpeg',
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'.aif' : 'audio/x-aiff',
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'.aifc' : 'audio/x-aiff',
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'.aiff' : 'audio/x-aiff',
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'.ra' : 'audio/x-pn-realaudio',
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'.wav' : 'audio/x-wav',
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'.bmp' : 'image/bmp',
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'.gif' : 'image/gif',
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'.ief' : 'image/ief',
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'.jpg' : 'image/jpeg',
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'.jpe' : 'image/jpeg',
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'.jpeg' : 'image/jpeg',
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'.png' : 'image/png',
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'.svg' : 'image/svg+xml',
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'.tiff' : 'image/tiff',
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'.tif' : 'image/tiff',
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'.ico' : 'image/vnd.microsoft.icon',
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'.ras' : 'image/x-cmu-raster',
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'.bmp' : 'image/x-ms-bmp',
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'.pnm' : 'image/x-portable-anymap',
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'.pbm' : 'image/x-portable-bitmap',
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'.pgm' : 'image/x-portable-graymap',
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'.ppm' : 'image/x-portable-pixmap',
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'.rgb' : 'image/x-rgb',
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'.xbm' : 'image/x-xbitmap',
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'.xpm' : 'image/x-xpixmap',
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'.xwd' : 'image/x-xwindowdump',
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'.eml' : 'message/rfc822',
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'.mht' : 'message/rfc822',
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'.mhtml' : 'message/rfc822',
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'.nws' : 'message/rfc822',
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'.css' : 'text/css',
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'.csv' : 'text/csv',
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'.html' : 'text/html',
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'.htm' : 'text/html',
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'.txt' : 'text/plain',
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'.bat' : 'text/plain',
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'.c' : 'text/plain',
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'.h' : 'text/plain',
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'.ksh' : 'text/plain',
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'.pl' : 'text/plain',
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'.rtx' : 'text/richtext',
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'.tsv' : 'text/tab-separated-values',
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'.py' : 'text/x-python',
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'.etx' : 'text/x-setext',
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'.sgm' : 'text/x-sgml',
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'.sgml' : 'text/x-sgml',
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'.vcf' : 'text/x-vcard',
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'.xml' : 'text/xml',
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'.mp4' : 'video/mp4',
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'.mpeg' : 'video/mpeg',
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'.m1v' : 'video/mpeg',
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'.mpa' : 'video/mpeg',
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'.mpe' : 'video/mpeg',
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'.mpg' : 'video/mpeg',
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'.mov' : 'video/quicktime',
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'.qt' : 'video/quicktime',
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'.webm' : 'video/webm',
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'.avi' : 'video/x-msvideo',
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'.movie' : 'video/x-sgi-movie',
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}
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# These are non-standard types, commonly found in the wild. They will
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# only match if strict=0 flag is given to the API methods.
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# Please sort these too
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common_types = {
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'.jpg' : 'image/jpg',
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'.mid' : 'audio/midi',
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common_types = _common_types_default = {
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'.rtf' : 'application/rtf',
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'.midi': 'audio/midi',
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'.mid' : 'audio/midi',
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'.jpg' : 'image/jpg',
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'.pict': 'image/pict',
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'.pct' : 'image/pict',
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'.pic' : 'image/pict',
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'.pict': 'image/pict',
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'.rtf' : 'application/rtf',
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'.xul' : 'text/xul'
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'.xul' : 'text/xul',
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}
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@ -79,6 +79,57 @@ class MimeTypesTestCase(unittest.TestCase):
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strict=True)
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self.assertEqual(exts, ['.g3', '.g\xb3'])
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def test_init_reinitializes(self):
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# Issue 4936: make sure an init starts clean
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# First, put some poison into the types table
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mimetypes.add_type('foo/bar', '.foobar')
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self.assertEqual(mimetypes.guess_extension('foo/bar'), '.foobar')
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# Reinitialize
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mimetypes.init()
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# Poison should be gone.
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self.assertEqual(mimetypes.guess_extension('foo/bar'), None)
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def test_preferred_extension(self):
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def check_extensions():
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self.assertEqual(mimetypes.guess_extension('application/octet-stream'), '.bin')
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self.assertEqual(mimetypes.guess_extension('application/postscript'), '.ps')
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self.assertEqual(mimetypes.guess_extension('application/vnd.apple.mpegurl'), '.m3u')
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self.assertEqual(mimetypes.guess_extension('application/vnd.ms-excel'), '.xls')
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self.assertEqual(mimetypes.guess_extension('application/vnd.ms-powerpoint'), '.ppt')
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self.assertEqual(mimetypes.guess_extension('application/x-texinfo'), '.texi')
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self.assertEqual(mimetypes.guess_extension('application/x-troff'), '.roff')
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self.assertEqual(mimetypes.guess_extension('application/xml'), '.xsl')
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self.assertEqual(mimetypes.guess_extension('audio/mpeg'), '.mp3')
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self.assertEqual(mimetypes.guess_extension('image/jpeg'), '.jpg')
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self.assertEqual(mimetypes.guess_extension('image/tiff'), '.tiff')
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self.assertEqual(mimetypes.guess_extension('message/rfc822'), '.eml')
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self.assertEqual(mimetypes.guess_extension('text/html'), '.html')
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self.assertEqual(mimetypes.guess_extension('text/plain'), '.txt')
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self.assertEqual(mimetypes.guess_extension('video/mpeg'), '.mpeg')
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self.assertEqual(mimetypes.guess_extension('video/quicktime'), '.mov')
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check_extensions()
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mimetypes.init()
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check_extensions()
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def test_init_stability(self):
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mimetypes.init()
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suffix_map = mimetypes.suffix_map
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encodings_map = mimetypes.encodings_map
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types_map = mimetypes.types_map
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common_types = mimetypes.common_types
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mimetypes.init()
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self.assertIsNot(suffix_map, mimetypes.suffix_map)
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self.assertIsNot(encodings_map, mimetypes.encodings_map)
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self.assertIsNot(types_map, mimetypes.types_map)
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self.assertIsNot(common_types, mimetypes.common_types)
|
||||
self.assertEqual(suffix_map, mimetypes.suffix_map)
|
||||
self.assertEqual(encodings_map, mimetypes.encodings_map)
|
||||
self.assertEqual(types_map, mimetypes.types_map)
|
||||
self.assertEqual(common_types, mimetypes.common_types)
|
||||
|
||||
def test_path_like_ob(self):
|
||||
filename = "LICENSE.txt"
|
||||
filepath = pathlib.Path(filename)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,2 @@
|
|||
Fixed non-deterministic behavior related to mimetypes extension mapping and
|
||||
module reinitialization.
|
||||
Loading…
Reference in New Issue