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# -*- coding: utf-8 -*-

import os, tempfile, random, time
from StringIO import StringIO
from smb.SMBConnection import SMBConnection
from smb.smb2_constants import SMB2_DIALECT_2
from util import getConnectionInfo
from nose.tools import with_setup
from smb import smb_structs

try:
    import hashlib
    def MD5(): return hashlib.md5()
except ImportError:
    import md5
    def MD5(): return md5.new()

conn = None

TEST_FILENAME = os.path.join(os.path.dirname(__file__), os.pardir, 'SupportFiles', 'binary.dat')
TEST_FILESIZE = 256000
TEST_DIGEST = 'bb6303f76e29f354b6fdf6ef58587e48'

def setup_func_SMB1():
    global conn
    smb_structs.SUPPORT_SMB2 = smb_structs.SUPPORT_SMB2x = False
    info = getConnectionInfo()
    conn = SMBConnection(info['user'], info['password'], info['client_name'], info['server_name'], use_ntlm_v2 = True)
    assert conn.connect(info['server_ip'], info['server_port'])

def setup_func_SMB2():
    global conn
    smb_structs.SUPPORT_SMB2 = True
    smb_structs.SUPPORT_SMB2x = False
    info = getConnectionInfo()
    conn = SMBConnection(info['user'], info['password'], info['client_name'], info['server_name'], use_ntlm_v2 = True)
    assert conn.connect(info['server_ip'], info['server_port'])

def setup_func_SMB2x():
    global conn
    smb_structs.SUPPORT_SMB2 = smb_structs.SUPPORT_SMB2x = True
    info = getConnectionInfo()
    conn = SMBConnection(info['user'], info['password'], info['client_name'], info['server_name'], use_ntlm_v2 = True)
    assert conn.connect(info['server_ip'], info['server_port'])

def teardown_func():
    global conn
    conn.close()


@with_setup(setup_func_SMB1, teardown_func)
def test_store_long_filename_SMB1():
    global conn
    filename = os.sep + 'StoreTest %d-%d.dat' % ( time.time(), random.randint(0, 10000) )

    filesize = conn.storeFile('smbtest', filename, open(TEST_FILENAME, 'rb'))
    assert filesize == TEST_FILESIZE

    entries = conn.listPath('smbtest', os.path.dirname(filename.replace('/', os.sep)))
    filenames = map(lambda e: e.filename, entries)
    assert os.path.basename(filename.replace('/', os.sep)) in filenames

    buf = StringIO()
    file_attributes, file_size = conn.retrieveFile('smbtest', filename, buf)
    assert file_size == TEST_FILESIZE

    md = MD5()
    md.update(buf.getvalue())
    assert md.hexdigest() == TEST_DIGEST
    buf.close()

    conn.deleteFiles('smbtest', filename)

@with_setup(setup_func_SMB1, teardown_func)
def test_store_from_offset_SMB1():
    global conn
    filename = os.sep + 'StoreTest %d-%d.dat' % ( time.time(), random.randint(0, 10000) )

    buf = StringIO('0123456789')
    filesize = conn.storeFile('smbtest', filename, buf)
    assert filesize == 10

    buf = StringIO('aa')
    pos = conn.storeFileFromOffset('smbtest', filename, buf, 5)
    assert pos == 7

    buf = StringIO()
    file_attributes, file_size = conn.retrieveFile('smbtest', filename, buf)
    assert file_size == 10
    assert buf.getvalue() == '01234aa789'
    buf.close()

    conn.deleteFiles('smbtest', filename)

@with_setup(setup_func_SMB2, teardown_func)
def test_store_long_filename_SMB2():
    global conn
    assert conn.smb2_dialect == SMB2_DIALECT_2

    filename = os.sep + 'StoreTest %d-%d.dat' % ( time.time(), random.randint(0, 10000) )

    filesize = conn.storeFile('smbtest', filename, open(TEST_FILENAME, 'rb'))
    assert filesize == TEST_FILESIZE

    entries = conn.listPath('smbtest', os.path.dirname(filename.replace('/', os.sep)))
    filenames = map(lambda e: e.filename, entries)
    assert os.path.basename(filename.replace('/', os.sep)) in filenames

    buf = StringIO()
    file_attributes, file_size = conn.retrieveFile('smbtest', filename, buf)
    assert file_size == TEST_FILESIZE

    md = MD5()
    md.update(buf.getvalue())
    assert md.hexdigest() == TEST_DIGEST
    buf.close()

    conn.deleteFiles('smbtest', filename)


@with_setup(setup_func_SMB2x, teardown_func)
def test_store_long_filename_SMB2x():
    global conn
    assert conn.smb2_dialect != SMB2_DIALECT_2

    filename = os.sep + 'StoreTest %d-%d.dat' % ( time.time(), random.randint(0, 10000) )

    filesize = conn.storeFile('smbtest', filename, open(TEST_FILENAME, 'rb'))
    assert filesize == TEST_FILESIZE

    entries = conn.listPath('smbtest', os.path.dirname(filename.replace('/', os.sep)))
    filenames = map(lambda e: e.filename, entries)
    assert os.path.basename(filename.replace('/', os.sep)) in filenames

    buf = StringIO()
    file_attributes, file_size = conn.retrieveFile('smbtest', filename, buf)
    assert file_size == TEST_FILESIZE

    md = MD5()
    md.update(buf.getvalue())
    assert md.hexdigest() == TEST_DIGEST
    buf.close()

    conn.deleteFiles('smbtest', filename)


@with_setup(setup_func_SMB1, teardown_func)
def test_store_unicode_filename_SMB1():
    global conn
    filename = os.sep + u'上载测试 %d-%d.dat' % ( time.time(), random.randint(0, 10000) )

    filesize = conn.storeFile('smbtest', filename, open(TEST_FILENAME, 'rb'))
    assert filesize == TEST_FILESIZE

    entries = conn.listPath('smbtest', os.path.dirname(filename.replace('/', os.sep)))
    filenames = map(lambda e: e.filename, entries)
    assert os.path.basename(filename.replace('/', os.sep)) in filenames

    buf = StringIO()
    file_attributes, file_size = conn.retrieveFile('smbtest', filename, buf)
    assert file_size == TEST_FILESIZE

    md = MD5()
    md.update(buf.getvalue())
    assert md.hexdigest() == TEST_DIGEST
    buf.close()

    conn.deleteFiles('smbtest', filename)


@with_setup(setup_func_SMB2, teardown_func)
def test_store_unicode_filename_SMB2():
    global conn
    assert conn.smb2_dialect == SMB2_DIALECT_2

    filename = os.sep + u'上载测试 %d-%d.dat' % ( time.time(), random.randint(0, 10000) )

    filesize = conn.storeFile('smbtest', filename, open(TEST_FILENAME, 'rb'))
    assert filesize == TEST_FILESIZE

    entries = conn.listPath('smbtest', os.path.dirname(filename.replace('/', os.sep)))
    filenames = map(lambda e: e.filename, entries)
    assert os.path.basename(filename.replace('/', os.sep)) in filenames

    buf = StringIO()
    file_attributes, file_size = conn.retrieveFile('smbtest', filename, buf)
    assert file_size == TEST_FILESIZE

    md = MD5()
    md.update(buf.getvalue())
    assert md.hexdigest() == TEST_DIGEST
    buf.close()

    conn.deleteFiles('smbtest', filename)


@with_setup(setup_func_SMB2x, teardown_func)
def test_store_unicode_filename_SMB2x():
    global conn
    assert conn.smb2_dialect != SMB2_DIALECT_2

    filename = os.sep + u'上载测试 %d-%d.dat' % ( time.time(), random.randint(0, 10000) )

    filesize = conn.storeFile('smbtest', filename, open(TEST_FILENAME, 'rb'))
    assert filesize == TEST_FILESIZE

    entries = conn.listPath('smbtest', os.path.dirname(filename.replace('/', os.sep)))
    filenames = map(lambda e: e.filename, entries)
    assert os.path.basename(filename.replace('/', os.sep)) in filenames

    buf = StringIO()
    file_attributes, file_size = conn.retrieveFile('smbtest', filename, buf)
    assert file_size == TEST_FILESIZE

    md = MD5()
    md.update(buf.getvalue())
    assert md.hexdigest() == TEST_DIGEST
    buf.close()

    conn.deleteFiles('smbtest', filename)


@with_setup(setup_func_SMB2, teardown_func)
def test_store_from_offset_SMB2():
    global conn
    assert conn.smb2_dialect == SMB2_DIALECT_2

    filename = os.sep + 'StoreTest %d-%d.dat' % ( time.time(), random.randint(0, 10000) )

    buf = StringIO('0123456789')
    filesize = conn.storeFile('smbtest', filename, buf)
    assert filesize == 10

    buf = StringIO('aa')
    pos = conn.storeFileFromOffset('smbtest', filename, buf, 5)
    assert pos == 7

    buf = StringIO()
    file_attributes, file_size = conn.retrieveFile('smbtest', filename, buf)
    assert file_size == 10
    assert buf.getvalue() == '01234aa789'
    buf.close()

    conn.deleteFiles('smbtest', filename)


@with_setup(setup_func_SMB2x, teardown_func)
def test_store_from_offset_SMB2x():
    global conn
    assert conn.smb2_dialect != SMB2_DIALECT_2

    filename = os.sep + 'StoreTest %d-%d.dat' % ( time.time(), random.randint(0, 10000) )

    buf = StringIO('0123456789')
    filesize = conn.storeFile('smbtest', filename, buf)
    assert filesize == 10

    buf = StringIO('aa')
    pos = conn.storeFileFromOffset('smbtest', filename, buf, 5)
    assert pos == 7

    buf = StringIO()
    file_attributes, file_size = conn.retrieveFile('smbtest', filename, buf)
    assert file_size == 10
    assert buf.getvalue() == '01234aa789'
    buf.close()

    conn.deleteFiles('smbtest', filename)