Esempio n. 1
0
def referencesf(p, oids=None):
    """Return a list of object ids found in a pickle

    A list may be passed in, in which case, information is
    appended to it.

    Only ordinary internal references are included.
    Weak and multi-database references are not included.
    """

    refs = []
    u = Unpickler(BytesIO(p))
    u.persistent_load = refs.append
    u.noload()
    u.noload()

    # Now we have a list of referencs.  Need to convert to list of
    # oids:

    if oids is None:
        oids = []

    for reference in refs:
        if isinstance(reference, tuple):
            oid = reference[0]
        elif isinstance(reference, (bytes, str)):
            oid = reference
        else:
            assert isinstance(reference, list)
            continue

        if not isinstance(oid, bytes):
            assert isinstance(oid, str)
            # this happens on Python 3 when all bytes in the oid are < 0x80
            oid = oid.encode("ascii")

        oids.append(oid)

    return oids
def referencesf(p, oids=None):
    """Return a list of object ids found in a pickle

    A list may be passed in, in which case, information is
    appended to it.

    Only ordinary internal references are included.
    Weak and multi-database references are not included.
    """

    refs = []
    u = Unpickler(BytesIO(p))
    u.persistent_load = refs.append
    u.noload()
    u.noload()

    # Now we have a list of referencs.  Need to convert to list of
    # oids:

    if oids is None:
        oids = []

    for reference in refs:
        if isinstance(reference, tuple):
            oid = reference[0]
        elif isinstance(reference, (bytes, str)):
            oid = reference
        else:
            assert isinstance(reference, list)
            continue

        if not isinstance(oid, bytes):
            assert isinstance(oid, str)
            # this happens on Python 3 when all bytes in the oid are < 0x80
            oid = oid.encode('ascii')

        oids.append(oid)

    return oids
Esempio n. 3
0
def get_refs(a_pickle):
    """Return oid and class information for references in a pickle

    The result of a list of oid and class information tuples.
    If the reference doesn't contain class information, then the
    klass information is None.
    """

    refs = []
    u = Unpickler(BytesIO(a_pickle))
    u.persistent_load = refs.append
    u.noload()
    u.noload()

    # Now we have a list of references.  Need to convert to list of
    # oids and class info:

    result = []

    for reference in refs:
        if isinstance(reference, tuple):
            oid, klass = reference
        elif isinstance(reference, (bytes, str)):
            data, klass = reference, None
        else:
            assert isinstance(reference, list)
            continue

        if not isinstance(oid, bytes):
            assert isinstance(oid, str)
            # this happens on Python 3 when all bytes in the oid are < 0x80
            oid = oid.encode("ascii")

        result.append((oid, klass))

    return result
def get_refs(a_pickle):
    """Return oid and class information for references in a pickle

    The result of a list of oid and class information tuples.
    If the reference doesn't contain class information, then the
    klass information is None.
    """

    refs = []
    u = Unpickler(BytesIO(a_pickle))
    u.persistent_load = refs.append
    u.noload()
    u.noload()

    # Now we have a list of references.  Need to convert to list of
    # oids and class info:

    result = []

    for reference in refs:
        if isinstance(reference, tuple):
            oid, klass = reference
        elif isinstance(reference, (bytes, str)):
            data, klass = reference, None
        else:
            assert isinstance(reference, list)
            continue

        if not isinstance(oid, bytes):
            assert isinstance(oid, str)
            # this happens on Python 3 when all bytes in the oid are < 0x80
            oid = oid.encode('ascii')

        result.append((oid, klass))

    return result