Adding upstream version 1:5.45.upstream/1%5.45upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

10 files changed, 967 insertions, 0 deletions

diff --git a/python/CHANGELOG.md b/python/CHANGELOG.md
new file mode 100644
index 0000000..2634986
--- /dev/null
+++ b/python/CHANGELOG.md
@@ -0,0 +1,21 @@
+# Python `file-magic` Log of Changes
+
+## `0.4.1`
+
+- Create threadlocal objects so that the `detect_from_*` methods work properly
+
+
+## `0.4.0`
+
+- Sync with current version of file:
+  * Retain python 2 compatibility, factoring out the conversion functions.
+  * Avoid double encoding with python3
+  * Restore python-2 compatibility.
+
+
+## `0.3.0`
+
+- Fix `setup.py` so we can upload to PyPI
+- Add function `detect_from_filename`
+- Add function `detect_from_fobj`
+- Add function `detect_from_content`
diff --git a/python/LICENSE b/python/LICENSE
new file mode 100644
index 0000000..46cfc24
--- /dev/null
+++ b/python/LICENSE
@@ -0,0 +1,25 @@
+Copyright (c) Ian F. Darwin 1986-1995.
+Software written by Ian F. Darwin and others;
+maintained 1995-present by Christos Zoulas and others.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice immediately at the beginning of the file, without modification,
+   this list of conditions, and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
diff --git a/python/Makefile.am b/python/Makefile.am
new file mode 100644
index 0000000..9588f08
--- /dev/null
+++ b/python/Makefile.am
@@ -0,0 +1,4 @@
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+	tests.py file_magic/__init__.py
+
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new file mode 100644
index 0000000..b3053e6
--- /dev/null
+++ b/python/Makefile.in
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diff --git a/python/README.md b/python/README.md
new file mode 100644
index 0000000..d626e31
--- /dev/null
+++ b/python/README.md
@@ -0,0 +1,31 @@
+# `file-magic`: Python Bindings
+
+This library is a Python ctypes interface to `libmagic`.
+
+
+## Installing
+
+You can install `file-magic` either with:
+
+    python setup.py install
+    # or
+    easy_install .
+    # or
+    pip install file-magic
+
+
+## Using
+
+    import magic
+
+    detected = magic.detect_from_filename('magic.py')
+    print 'Detected MIME type: {}'.format(detected.mime_type)
+    print 'Detected encoding: {}'.format(detected.encoding)
+    print 'Detected file type name: {}'.format(detected.name)
+
+
+## Developing/Contributing
+
+To run the tests:
+
+    python setup.py test
diff --git a/python/example.py b/python/example.py
new file mode 100644
index 0000000..0cd0b5e
--- /dev/null
+++ b/python/example.py
@@ -0,0 +1,17 @@
+#! /usr/bin/python
+
+import magic
+
+ms = magic.open(magic.NONE)
+ms.load()
+tp = ms.file("/bin/ls")
+print (tp)
+
+f = open("/bin/ls", "rb")
+buf = f.read(4096)
+f.close()
+
+tp = ms.buffer(buf)
+print (tp)
+
+ms.close()
diff --git a/python/file_magic/__init__.py b/python/file_magic/__init__.py
new file mode 100644
index 0000000..c71f124
--- /dev/null
+++ b/python/file_magic/__init__.py
@@ -0,0 +1 @@
+name = 'file_magic'
diff --git a/python/magic.py b/python/magic.py
new file mode 100644
index 0000000..4300ee0
--- /dev/null
+++ b/python/magic.py
@@ -0,0 +1,361 @@
+# coding: utf-8
+
+'''
+Python bindings for libmagic
+'''
+
+import ctypes
+import threading
+
+from collections import namedtuple
+
+from ctypes import *
+from ctypes.util import find_library
+
+
+def _init():
+    """
+    Loads the shared library through ctypes and returns a library
+    L{ctypes.CDLL} instance
+    """
+    return ctypes.cdll.LoadLibrary(find_library('magic'))
+
+_libraries = {}
+_libraries['magic'] = _init()
+
+# Flag constants for open and setflags
+MAGIC_NONE = NONE = 0
+MAGIC_DEBUG = DEBUG = 1
+MAGIC_SYMLINK = SYMLINK = 2
+MAGIC_COMPRESS = COMPRESS = 4
+MAGIC_DEVICES = DEVICES = 8
+MAGIC_MIME_TYPE = MIME_TYPE = 16
+MAGIC_CONTINUE = CONTINUE = 32
+MAGIC_CHECK = CHECK = 64
+MAGIC_PRESERVE_ATIME = PRESERVE_ATIME = 128
+MAGIC_RAW = RAW = 256
+MAGIC_ERROR = ERROR = 512
+MAGIC_MIME_ENCODING = MIME_ENCODING = 1024
+MAGIC_MIME = MIME = 1040  # MIME_TYPE + MIME_ENCODING
+MAGIC_APPLE = APPLE = 2048
+
+MAGIC_NO_CHECK_COMPRESS = NO_CHECK_COMPRESS = 4096
+MAGIC_NO_CHECK_TAR = NO_CHECK_TAR = 8192
+MAGIC_NO_CHECK_SOFT = NO_CHECK_SOFT = 16384
+MAGIC_NO_CHECK_APPTYPE = NO_CHECK_APPTYPE = 32768
+MAGIC_NO_CHECK_ELF = NO_CHECK_ELF = 65536
+MAGIC_NO_CHECK_TEXT = NO_CHECK_TEXT = 131072
+MAGIC_NO_CHECK_CDF = NO_CHECK_CDF = 262144
+MAGIC_NO_CHECK_TOKENS = NO_CHECK_TOKENS = 1048576
+MAGIC_NO_CHECK_ENCODING = NO_CHECK_ENCODING = 2097152
+
+MAGIC_NO_CHECK_BUILTIN = NO_CHECK_BUILTIN = 4173824
+
+MAGIC_PARAM_INDIR_MAX = PARAM_INDIR_MAX = 0
+MAGIC_PARAM_NAME_MAX = PARAM_NAME_MAX = 1
+MAGIC_PARAM_ELF_PHNUM_MAX = PARAM_ELF_PHNUM_MAX = 2
+MAGIC_PARAM_ELF_SHNUM_MAX = PARAM_ELF_SHNUM_MAX = 3
+MAGIC_PARAM_ELF_NOTES_MAX = PARAM_ELF_NOTES_MAX = 4
+MAGIC_PARAM_REGEX_MAX = PARAM_REGEX_MAX = 5
+MAGIC_PARAM_BYTES_MAX = PARAM_BYTES_MAX = 6
+
+FileMagic = namedtuple('FileMagic', ('mime_type', 'encoding', 'name'))
+
+
+class magic_set(Structure):
+    pass
+magic_set._fields_ = []
+magic_t = POINTER(magic_set)
+
+_open = _libraries['magic'].magic_open
+_open.restype = magic_t
+_open.argtypes = [c_int]
+
+_close = _libraries['magic'].magic_close
+_close.restype = None
+_close.argtypes = [magic_t]
+
+_file = _libraries['magic'].magic_file
+_file.restype = c_char_p
+_file.argtypes = [magic_t, c_char_p]
+
+_descriptor = _libraries['magic'].magic_descriptor
+_descriptor.restype = c_char_p
+_descriptor.argtypes = [magic_t, c_int]
+
+_buffer = _libraries['magic'].magic_buffer
+_buffer.restype = c_char_p
+_buffer.argtypes = [magic_t, c_void_p, c_size_t]
+
+_error = _libraries['magic'].magic_error
+_error.restype = c_char_p
+_error.argtypes = [magic_t]
+
+_setflags = _libraries['magic'].magic_setflags
+_setflags.restype = c_int
+_setflags.argtypes = [magic_t, c_int]
+
+_load = _libraries['magic'].magic_load
+_load.restype = c_int
+_load.argtypes = [magic_t, c_char_p]
+
+_compile = _libraries['magic'].magic_compile
+_compile.restype = c_int
+_compile.argtypes = [magic_t, c_char_p]
+
+_check = _libraries['magic'].magic_check
+_check.restype = c_int
+_check.argtypes = [magic_t, c_char_p]
+
+_list = _libraries['magic'].magic_list
+_list.restype = c_int
+_list.argtypes = [magic_t, c_char_p]
+
+_errno = _libraries['magic'].magic_errno
+_errno.restype = c_int
+_errno.argtypes = [magic_t]
+
+_getparam = _libraries['magic'].magic_getparam
+_getparam.restype = c_int
+_getparam.argtypes = [magic_t, c_int, c_void_p]
+
+_setparam = _libraries['magic'].magic_setparam
+_setparam.restype = c_int
+_setparam.argtypes = [magic_t, c_int, c_void_p]
+
+
+class Magic(object):
+    def __init__(self, ms):
+        self._magic_t = ms
+
+    def close(self):
+        """
+        Closes the magic database and deallocates any resources used.
+        """
+        _close(self._magic_t)
+
+    @staticmethod
+    def __tostr(s):
+        if s is None:
+            return None
+        if isinstance(s, str):
+            return s
+        try:  # keep Python 2 compatibility
+            return str(s, 'utf-8')
+        except TypeError:
+            return str(s)
+
+    @staticmethod
+    def __tobytes(b):
+        if b is None:
+            return None
+        if isinstance(b, bytes):
+            return b
+        try:  # keep Python 2 compatibility
+            return bytes(b, 'utf-8')
+        except TypeError:
+            return bytes(b)
+
+    def file(self, filename):
+        """
+        Returns a textual description of the contents of the argument passed
+        as a filename or None if an error occurred and the MAGIC_ERROR flag
+        is set. A call to errno() will return the numeric error code.
+        """
+        return Magic.__tostr(_file(self._magic_t, Magic.__tobytes(filename)))
+
+    def descriptor(self, fd):
+        """
+        Returns a textual description of the contents of the argument passed
+        as a file descriptor or None if an error occurred and the MAGIC_ERROR
+        flag is set. A call to errno() will return the numeric error code.
+        """
+        return Magic.__tostr(_descriptor(self._magic_t, fd))
+
+    def buffer(self, buf):
+        """
+        Returns a textual description of the contents of the argument passed
+        as a buffer or None if an error occurred and the MAGIC_ERROR flag
+        is set. A call to errno() will return the numeric error code.
+        """
+        return Magic.__tostr(_buffer(self._magic_t, buf, len(buf)))
+
+    def error(self):
+        """
+        Returns a textual explanation of the last error or None
+        if there was no error.
+        """
+        return Magic.__tostr(_error(self._magic_t))
+
+    def setflags(self, flags):
+        """
+        Set flags on the magic object which determine how magic checking
+        behaves; a bitwise OR of the flags described in libmagic(3), but
+        without the MAGIC_ prefix.
+
+        Returns -1 on systems that don't support utime(2) or utimes(2)
+        when PRESERVE_ATIME is set.
+        """
+        return _setflags(self._magic_t, flags)
+
+    def load(self, filename=None):
+        """
+        Must be called to load entries in the colon separated list of database
+        files passed as argument or the default database file if no argument
+        before any magic queries can be performed.
+
+        Returns 0 on success and -1 on failure.
+        """
+        return _load(self._magic_t, Magic.__tobytes(filename))
+
+    def compile(self, dbs):
+        """
+        Compile entries in the colon separated list of database files
+        passed as argument or the default database file if no argument.
+        The compiled files created are named from the basename(1) of each file
+        argument with ".mgc" appended to it.
+
+        Returns 0 on success and -1 on failure.
+        """
+        return _compile(self._magic_t, Magic.__tobytes(dbs))
+
+    def check(self, dbs):
+        """
+        Check the validity of entries in the colon separated list of
+        database files passed as argument or the default database file
+        if no argument.
+
+        Returns 0 on success and -1 on failure.
+        """
+        return _check(self._magic_t, Magic.__tobytes(dbs))
+
+    def list(self, dbs):
+        """
+        Check the validity of entries in the colon separated list of
+        database files passed as argument or the default database file
+        if no argument.
+
+        Returns 0 on success and -1 on failure.
+        """
+        return _list(self._magic_t, Magic.__tobytes(dbs))
+
+    def errno(self):
+        """
+        Returns a numeric error code. If return value is 0, an internal
+        magic error occurred. If return value is non-zero, the value is
+        an OS error code. Use the errno module or os.strerror() can be used
+        to provide detailed error information.
+        """
+        return _errno(self._magic_t)
+
+    def getparam(self, param):
+        """
+        Returns the param value if successful and -1 if the parameter
+        was unknown.
+        """
+        v = c_int()
+        i = _getparam(self._magic_t, param, byref(v))
+        if i == -1:
+            return -1
+        return v.value
+
+    def setparam(self, param, value):
+        """
+        Returns 0 if successful and -1 if the parameter was unknown.
+        """
+        v = c_int(value)
+        return _setparam(self._magic_t, param, byref(v))
+
+
+def open(flags):
+    """
+    Returns a magic object on success and None on failure.
+    Flags argument as for setflags.
+    """
+    magic_t = _open(flags)
+    if magic_t is None:
+        return None
+    return Magic(magic_t)
+
+
+# Objects used by `detect_from_` functions
+class error(Exception):
+    pass
+
+class MagicDetect(object):
+    def __init__(self):
+        self.mime_magic = open(MAGIC_MIME)
+        if self.mime_magic is None:
+            raise error
+        if self.mime_magic.load() == -1:
+            self.mime_magic.close()
+            self.mime_magic = None
+            raise error
+        self.none_magic = open(MAGIC_NONE)
+        if self.none_magic is None:
+            self.mime_magic.close()
+            self.mime_magic = None
+            raise error
+        if self.none_magic.load() == -1:
+            self.none_magic.close()
+            self.none_magic = None
+            self.mime_magic.close()
+            self.mime_magic = None
+            raise error
+
+    def __del__(self):
+        if self.mime_magic is not None:
+            self.mime_magic.close()
+        if self.none_magic is not None:
+            self.none_magic.close()
+
+threadlocal = threading.local()
+
+def _detect_make():
+    v = getattr(threadlocal, "magic_instance", None)
+    if v is None:
+        v = MagicDetect()
+        setattr(threadlocal, "magic_instance", v)
+    return v
+
+def _create_filemagic(mime_detected, type_detected):
+    try:
+        mime_type, mime_encoding = mime_detected.split('; ')
+    except ValueError:
+        raise ValueError(mime_detected)
+
+    return FileMagic(name=type_detected, mime_type=mime_type,
+                     encoding=mime_encoding.replace('charset=', ''))
+
+
+def detect_from_filename(filename):
+    '''Detect mime type, encoding and file type from a filename
+
+    Returns a `FileMagic` namedtuple.
+    '''
+    x = _detect_make()
+    return _create_filemagic(x.mime_magic.file(filename),
+                             x.none_magic.file(filename))
+
+
+def detect_from_fobj(fobj):
+    '''Detect mime type, encoding and file type from file-like object
+
+    Returns a `FileMagic` namedtuple.
+    '''
+
+    file_descriptor = fobj.fileno()
+    x = _detect_make()
+    return _create_filemagic(x.mime_magic.descriptor(file_descriptor),
+                             x.none_magic.descriptor(file_descriptor))
+
+
+def detect_from_content(byte_content):
+    '''Detect mime type, encoding and file type from bytes
+
+    Returns a `FileMagic` namedtuple.
+    '''
+
+    x = _detect_make()
+    return _create_filemagic(x.mime_magic.buffer(byte_content),
+                             x.none_magic.buffer(byte_content))
diff --git a/python/setup.py b/python/setup.py
new file mode 100644
index 0000000..a864b1e
--- /dev/null
+++ b/python/setup.py
@@ -0,0 +1,27 @@
+# coding: utf-8
+
+from __future__ import unicode_literals
+
+from setuptools import setup
+
+with open('README.md', 'r') as fh:
+      long_description = fh.read()
+
+
+setup(name='file-magic',
+      version='0.4.0',
+      author='Reuben Thomas, Álvaro Justen',
+      author_email='rrt@sc3d.org, alvarojusten@gmail.com',
+      url='https://github.com/file/file',
+      license='BSD',
+      description='(official) libmagic Python bindings',
+      long_description=long_description,
+      long_description_content_type='text/markdown',
+      py_modules=['magic'],
+      test_suite='tests',
+      classifiers = [
+          'Intended Audience :: Developers',
+          'License :: OSI Approved :: BSD License',
+          'Natural Language :: English',
+          'Topic :: Software Development :: Libraries :: Python Modules',
+      ])
diff --git a/python/tests.py b/python/tests.py
new file mode 100644
index 0000000..3fc73c6
--- /dev/null
+++ b/python/tests.py
@@ -0,0 +1,32 @@
+# coding: utf-8
+
+import unittest
+
+import magic
+
+
+class MagicTestCase(unittest.TestCase):
+
+    filename = 'magic.py'
+    expected_mime_type = 'text/x-script.python'
+    expected_encoding = 'us-ascii'
+    expected_name = 'Python script, ASCII text executable'
+
+    def assert_result(self, result):
+        self.assertEqual(result.mime_type, self.expected_mime_type)
+        self.assertEqual(result.encoding, self.expected_encoding)
+        self.assertEqual(result.name, self.expected_name)
+
+    def test_detect_from_filename(self):
+        result = magic.detect_from_filename(self.filename)
+        self.assert_result(result)
+
+    def test_detect_from_fobj(self):
+        with open(self.filename, "rb") as fobj:
+            result = magic.detect_from_fobj(fobj)
+        self.assert_result(result)
+
+    def test_detect_from_content(self):
+        with open(self.filename, "rb") as fobj:
+            result = magic.detect_from_content(fobj.read(8192))
+        self.assert_result(result)