Python binascii.a2b_uu方法代码示例

# 需要导入模块: import binascii [as 别名]
# 或者: from binascii import a2b_uu [as 别名]
def test_uu(self):
        MAX_UU = 45
        lines = []
        for i in range(0, len(self.data), MAX_UU):
            b = self.type2test(self.rawdata[i:i+MAX_UU])
            a = binascii.b2a_uu(b)
            lines.append(a)
        res = ""
        for line in lines:
            a = self.type2test(line)
            b = binascii.a2b_uu(a)
            res += b
        self.assertEqual(res, self.rawdata)

        self.assertEqual(binascii.a2b_uu("\x7f"), "\x00"*31)
        self.assertEqual(binascii.a2b_uu("\x80"), "\x00"*32)
        self.assertEqual(binascii.a2b_uu("\xff"), "\x00"*31)
        self.assertRaises(binascii.Error, binascii.a2b_uu, "\xff\x00")
        self.assertRaises(binascii.Error, binascii.a2b_uu, "!!!!")

        self.assertRaises(binascii.Error, binascii.b2a_uu, 46*"!")

        # Issue #7701 (crash on a pydebug build)
        self.assertEqual(binascii.b2a_uu('x'), '!>   \n') 

# 需要导入模块: import binascii [as 别名]
# 或者: from binascii import a2b_uu [as 别名]
def test_uu(self):
        MAX_UU = 45
        lines = []
        for i in range(0, len(self.data), MAX_UU):
            b = self.type2test(self.rawdata[i:i+MAX_UU])
            a = binascii.b2a_uu(b)
            lines.append(a)
        res = bytes()
        for line in lines:
            a = self.type2test(line)
            b = binascii.a2b_uu(a)
            res += b
        self.assertEqual(res, self.rawdata)

        self.assertEqual(binascii.a2b_uu(b"\x7f"), b"\x00"*31)
        self.assertEqual(binascii.a2b_uu(b"\x80"), b"\x00"*32)
        self.assertEqual(binascii.a2b_uu(b"\xff"), b"\x00"*31)
        self.assertRaises(binascii.Error, binascii.a2b_uu, b"\xff\x00")
        self.assertRaises(binascii.Error, binascii.a2b_uu, b"!!!!")

        self.assertRaises(binascii.Error, binascii.b2a_uu, 46*b"!")

        # Issue #7701 (crash on a pydebug build)
        self.assertEqual(binascii.b2a_uu(b'x'), b'!>   \n') 

# 需要导入模块: import binascii [as 别名]
# 或者: from binascii import a2b_uu [as 别名]
def test_uu(self):
        MAX_UU = 45
        lines = []
        for i in range(0, len(self.data), MAX_UU):
            b = self.data[i:i+MAX_UU]
            a = binascii.b2a_uu(b)
            lines.append(a)
        res = ""
        for line in lines:
            b = binascii.a2b_uu(line)
            res += b
        self.assertEqual(res, self.data)

        self.assertEqual(binascii.a2b_uu("\x7f"), "\x00"*31)
        self.assertEqual(binascii.a2b_uu("\x80"), "\x00"*32)
        self.assertEqual(binascii.a2b_uu("\xff"), "\x00"*31)
        self.assertRaises(binascii.Error, binascii.a2b_uu, "\xff\x00")
        self.assertRaises(binascii.Error, binascii.a2b_uu, "!!!!")

        self.assertRaises(binascii.Error, binascii.b2a_uu, 46*"!") 

# 需要导入模块: import binascii [as 别名]
# 或者: from binascii import a2b_uu [as 别名]
def uu_decode(input, errors='strict'):
    assert errors == 'strict'
    infile = BytesIO(input)
    outfile = BytesIO()
    readline = infile.readline
    write = outfile.write

    # Find start of encoded data
    while 1:
        s = readline()
        if not s:
            raise ValueError('Missing "begin" line in input data')
        if s[:5] == b'begin':
            break

    # Decode
    while True:
        s = readline()
        if not s or s == b'end\n':
            break
        try:
            data = binascii.a2b_uu(s)
        except binascii.Error as v:
            # Workaround for broken uuencoders by /Fredrik Lundh
            nbytes = (((s[0]-32) & 63) * 4 + 5) // 3
            data = binascii.a2b_uu(s[:nbytes])
            #sys.stderr.write("Warning: %s\n" % str(v))
        write(data)
    if not s:
        raise ValueError('Truncated input data')

    return (outfile.getvalue(), len(input)) 

# 需要导入模块: import binascii [as 别名]
# 或者: from binascii import a2b_uu [as 别名]
def uudecode(buffer: Union[bytes, str]):
    """
    uudecode an input buffer; based on python library uu but with support for byte stream
    :param buffer:
    :return:
    """
    # Create in_file from buffer
    in_file = io.BytesIO(buffer)
    out_file = io.BytesIO()

    while True:
        hdr = in_file.readline()
        if not hdr.startswith(b'begin'):
            continue
        hdrfields = hdr.split(b' ', 2)
        if len(hdrfields) == 3 and hdrfields[0] == b'begin':
            try:
                int(hdrfields[1], 8)
                break
            except ValueError:
                pass

    s = in_file.readline()
    while s and s.strip(b' \t\r\n\f') != b'end':
        try:
            data = binascii.a2b_uu(s)
        except binascii.Error as _:
            # Workaround for broken uuencoders by /Fredrik Lundh
            nbytes = (((s[0] - 32) & 63) * 4 + 5) // 3
            data = binascii.a2b_uu(s[:nbytes])
        out_file.write(data)
        s = in_file.readline()

    return out_file.getvalue() 

# 需要导入模块: import binascii [as 别名]
# 或者: from binascii import a2b_uu [as 别名]
def test_empty_string(self):
        # A test for SF bug #1022953.  Make sure SystemError is not raised.
        for n in ['b2a_qp', 'a2b_hex', 'b2a_base64', 'a2b_uu', 'a2b_qp',
                  'b2a_hex', 'unhexlify', 'hexlify', 'crc32', 'b2a_hqx',
                  'a2b_hqx', 'a2b_base64', 'rlecode_hqx', 'b2a_uu',
                  'rledecode_hqx']:
            f = getattr(binascii, n)
            f('')
        binascii.crc_hqx('', 0) 

# 需要导入模块: import binascii [as 别名]
# 或者: from binascii import a2b_uu [as 别名]
def rob_uu_decode(text):
    res = ''
    lines = text.strip().split('\n')
    for line in lines:
      decoded_line = a2b_uu(line) 
      res += decoded_line
    return res 

# 需要导入模块: import binascii [as 别名]
# 或者: from binascii import a2b_uu [as 别名]
def uu_decode(input,errors='strict'):

    """ Decodes the object input and returns a tuple (output
        object, length consumed).

        input must be an object which provides the bf_getreadbuf
        buffer slot. Python strings, buffer objects and memory
        mapped files are examples of objects providing this slot.

        errors defines the error handling to apply. It defaults to
        'strict' handling which is the only currently supported
        error handling for this codec.

        Note: filename and file mode information in the input data is
        ignored.

    """
    assert errors == 'strict'
    from cStringIO import StringIO
    from binascii import a2b_uu
    infile = StringIO(str(input))
    outfile = StringIO()
    readline = infile.readline
    write = outfile.write

    # Find start of encoded data
    while 1:
        s = readline()
        if not s:
            raise ValueError, 'Missing "begin" line in input data'
        if s[:5] == 'begin':
            break

    # Decode
    while 1:
        s = readline()
        if not s or \
           s == 'end\n':
            break
        try:
            data = a2b_uu(s)
        except binascii.Error, v:
            # Workaround for broken uuencoders by /Fredrik Lundh
            nbytes = (((ord(s[0])-32) & 63) * 4 + 5) / 3
            data = a2b_uu(s[:nbytes])
            #sys.stderr.write("Warning: %s\n" % str(v))
        write(data) 

# 需要导入模块: import binascii [as 别名]
# 或者: from binascii import a2b_uu [as 别名]
def uu_decode(input,errors='strict'):

    """ Decodes the object input and returns a tuple (output
        object, length consumed).

        input must be an object which provides the bf_getreadbuf
        buffer slot. Python strings, buffer objects and memory
        mapped files are examples of objects providing this slot.

        errors defines the error handling to apply. It defaults to
        'strict' handling which is the only currently supported
        error handling for this codec.

        Note: filename and file mode information in the input data is
        ignored.

    """
    assert errors == 'strict'
    from cStringIO import StringIO
    from binascii import a2b_uu
    infile = StringIO(str(input))
    outfile = StringIO()
    readline = infile.readline
    write = outfile.write

    # Find start of encoded data
    while 1:
        s = readline()
        if not s:
            raise ValueError, 'Missing "begin" line in input data'
        if s[:5] == 'begin':
            break

    # Decode
    while 1:
        s = readline()
        if not s or \
           s == 'end\n':
            break
        try:
            data = a2b_uu(s)
        except binascii.Error, v:
            # Workaround for broken uuencoders by /Fredrik Lundh
            nbytes = (((ord(s[0])-32) & 63) * 4 + 5) // 3
            data = a2b_uu(s[:nbytes])
            #sys.stderr.write("Warning: %s\n" % str(v))
        write(data)