Removed all stasher-specifics, relocated them to

i2p/apps/stasher

apps/sam/python/src/bencode.py

@@ -1,254 +0,0 @@
-# Written by Petru Paler
-# see LICENSE.txt for license information
-
-from types import IntType, LongType, StringType, ListType, TupleType, DictType
-import re
-from cStringIO import StringIO
-
-int_filter = re.compile('(0|-?[1-9][0-9]*)e')
-
-def decode_int(x, f):
-    m = int_filter.match(x, f)
-    if m is None:
-        raise ValueError
-    return (long(m.group(1)), m.end())
-
-string_filter = re.compile('(0|[1-9][0-9]*):')
-
-def decode_string(x, f):
-    m = string_filter.match(x, f)
-    if m is None:
-        raise ValueError
-    l = int(m.group(1))
-    s = m.end()
-    return (x[s:s+l], s + l)
-
-def decode_list(x, f):
-    r = []
-    while x[f] != 'e':
-        v, f = bdecode_rec(x, f)
-        r.append(v)
-    return (r, f + 1)
-
-def decode_dict(x, f):
-    r = {}
-    lastkey = None
-    while x[f] != 'e':
-        k, f = decode_string(x, f)
-        if lastkey is not None and lastkey >= k:
-            raise ValueError
-        lastkey = k
-        v, f = bdecode_rec(x, f)
-        r[k] = v
-    return (r, f + 1)
-
-def bdecode_rec(x, f):
-    t = x[f]
-    if t == 'i':
-        return decode_int(x, f + 1)
-    elif t == 'l':
-        return decode_list(x, f + 1)
-    elif t == 'd':
-        return decode_dict(x, f + 1)
-    else:
-        return decode_string(x, f)
-
-def bdecode(x):
-    try:
-        r, l = bdecode_rec(x, 0)
-    except IndexError:
-        raise ValueError
-    if l != len(x):
-        raise ValueError
-    return r
-
-def test_bdecode():
-    try:
-        bdecode('0:0:')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('ie')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('i341foo382e')
-        assert 0
-    except ValueError:
-        pass
-    assert bdecode('i4e') == 4L
-    assert bdecode('i0e') == 0L
-    assert bdecode('i123456789e') == 123456789L
-    assert bdecode('i-10e') == -10L
-    try:
-        bdecode('i-0e')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('i123')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('i6easd')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('35208734823ljdahflajhdf')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('2:abfdjslhfld')
-        assert 0
-    except ValueError:
-        pass
-    assert bdecode('0:') == ''
-    assert bdecode('3:abc') == 'abc'
-    assert bdecode('10:1234567890') == '1234567890'
-    try:
-        bdecode('02:xy')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('l')
-        assert 0
-    except ValueError:
-        pass
-    assert bdecode('le') == []
-    try:
-        bdecode('leanfdldjfh')
-        assert 0
-    except ValueError:
-        pass
-    assert bdecode('l0:0:0:e') == ['', '', '']
-    try:
-        bdecode('relwjhrlewjh')
-        assert 0
-    except ValueError:
-        pass
-    assert bdecode('li1ei2ei3ee') == [1, 2, 3]
-    assert bdecode('l3:asd2:xye') == ['asd', 'xy']
-    assert bdecode('ll5:Alice3:Bobeli2ei3eee') == [['Alice', 'Bob'], [2, 3]]
-    try:
-        bdecode('d')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('defoobar')
-        assert 0
-    except ValueError:
-        pass
-    assert bdecode('de') == {}
-    assert bdecode('d3:agei25e4:eyes4:bluee') == {'age': 25, 'eyes': 'blue'}
-    assert bdecode('d8:spam.mp3d6:author5:Alice6:lengthi100000eee') == {'spam.mp3': {'author': 'Alice', 'length': 100000}}
-    try:
-        bdecode('d3:fooe')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('di1e0:e')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('d1:b0:1:a0:e')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('d1:a0:1:a0:e')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('i03e')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('l01:ae')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('9999:x')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('l0:')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('d0:0:')
-        assert 0
-    except ValueError:
-        pass
-    try:
-        bdecode('d0:')
-        assert 0
-    except ValueError:
-        pass
-
-def bencode_rec(x, b):
-    t = type(x)
-    if t in (IntType, LongType):
-        b.write('i%de' % x)
-    elif t is StringType:
-        b.write('%d:%s' % (len(x), x))
-    elif t in (ListType, TupleType):
-        b.write('l')
-        for e in x:
-            bencode_rec(e, b)
-        b.write('e')
-    elif t is DictType:
-        b.write('d')
-        keylist = x.keys()
-        keylist.sort()
-        for k in keylist:
-            assert type(k) is StringType
-            bencode_rec(k, b)
-            bencode_rec(x[k], b)
-        b.write('e')
-    else:
-        assert 0
-
-def bencode(x):
-    b = StringIO()
-    bencode_rec(x, b)
-    return b.getvalue()
-
-def test_bencode():
-    assert bencode(4) == 'i4e'
-    assert bencode(0) == 'i0e'
-    assert bencode(-10) == 'i-10e'
-    assert bencode(12345678901234567890L) == 'i12345678901234567890e'
-    assert bencode('') == '0:'
-    assert bencode('abc') == '3:abc'
-    assert bencode('1234567890') == '10:1234567890'
-    assert bencode([]) == 'le'
-    assert bencode([1, 2, 3]) == 'li1ei2ei3ee'
-    assert bencode([['Alice', 'Bob'], [2, 3]]) == 'll5:Alice3:Bobeli2ei3eee'
-    assert bencode({}) == 'de'
-    assert bencode({'age': 25, 'eyes': 'blue'}) == 'd3:agei25e4:eyes4:bluee'
-    assert bencode({'spam.mp3': {'author': 'Alice', 'length': 100000}}) == 'd8:spam.mp3d6:author5:Alice6:lengthi100000eee'
-    try:
-        bencode({1: 'foo'})
-        assert 0
-    except AssertionError:
-        pass
-