diff --git a/example-config.yaml b/example-config.yaml index a4b86b2..7d8e61b 100644 --- a/example-config.yaml +++ b/example-config.yaml @@ -8,6 +8,9 @@ server: listen: 0.0.0.0:29316 base_path: /_matrix/maubot +admins: +- "@admin:example.com" + # Python logging configuration. # # See section 16.7.2 of the Python documentation for more info: @@ -21,7 +24,7 @@ logging: file: class: logging.handlers.RotatingFileHandler formatter: precise - filename: ./maubot.log + filename: ./logs/maubot.log maxBytes: 10485760 backupCount: 10 console: @@ -30,8 +33,10 @@ logging: loggers: maubot: level: DEBUG + mautrix: + level: DEBUG aiohttp: level: INFO root: level: DEBUG - handlers: [file, console] \ No newline at end of file + handlers: [file, console] diff --git a/maubot/__init__.py b/maubot/__init__.py index 86e4dc2..038c1c1 100644 --- a/maubot/__init__.py +++ b/maubot/__init__.py @@ -1,2 +1 @@ __version__ = "0.1.0+dev" -__author__ = "Tulir Asokan " diff --git a/maubot/__main__.py b/maubot/__main__.py new file mode 100644 index 0000000..67112bc --- /dev/null +++ b/maubot/__main__.py @@ -0,0 +1,42 @@ +# maubot - A plugin-based Matrix bot system. +# Copyright (C) 2018 Tulir Asokan +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU Affero General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU Affero General Public License for more details. +# +# You should have received a copy of the GNU Affero General Public License +# along with this program. If not, see . +from sqlalchemy import orm +import sqlalchemy as sql +import logging.config +import argparse +import copy + +from .config import Config +from . import __version__ + +parser = argparse.ArgumentParser(description="A plugin-based Matrix bot system.", + prog="python -m maubot") +parser.add_argument("-c", "--config", type=str, default="config.yaml", + metavar="", help="the path to your config file") +args = parser.parse_args() + +config = Config(args.config, args.base_config) +config.load() +config.update() + +logging.config.dictConfig(copy.deepcopy(config["logging"])) +log = logging.getLogger("maubot") +log.debug(f"Initializing maubot {__version__}") + +db_engine = sql.create_engine(config["database"]) +db_factory = orm.sessionmaker(bind=db_engine) +db_session = orm.scoping.scoped_session(db_factory) +Base.metadata.bind=db_engine diff --git a/maubot/config.py b/maubot/config.py new file mode 100644 index 0000000..bbcbba0 --- /dev/null +++ b/maubot/config.py @@ -0,0 +1,26 @@ +# maubot - A plugin-based Matrix bot system. +# Copyright (C) 2018 Tulir Asokan +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU Affero General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU Affero General Public License for more details. +# +# You should have received a copy of the GNU Affero General Public License +# along with this program. If not, see . +from mautrix.util import BaseConfig + + +class Config(BaseConfig): + def update(self): + base, copy, copy_dict = self._pre_update() + copy("database") + copy("plugin_directories") + copy("server.listen") + copy("server.base_path") + copy("logging") diff --git a/maubot/db.py b/maubot/db.py new file mode 100644 index 0000000..93b7c45 --- /dev/null +++ b/maubot/db.py @@ -0,0 +1,20 @@ +# maubot - A plugin-based Matrix bot system. +# Copyright (C) 2018 Tulir Asokan +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU Affero General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU Affero General Public License for more details. +# +# You should have received a copy of the GNU Affero General Public License +# along with this program. If not, see . +from sqlalchemy import (Column) +from sqlalchemy.ext.declarative import declarative_base + +Base: declarative_base = declarative_base() + diff --git a/requirements.txt b/requirements.txt new file mode 100644 index 0000000..318c4e2 --- /dev/null +++ b/requirements.txt @@ -0,0 +1,6 @@ +mautrix +aiohttp +SQLAlchemy +alembic +commonmark +ruamel.yaml diff --git a/setup.py b/setup.py index 5c6174a..6f467be 100644 --- a/setup.py +++ b/setup.py @@ -1,9 +1,9 @@ import setuptools -import maubot +from maubot import __version__ setuptools.setup( name="maubot", - version=maubot.__version__, + version=__version__, url="https://github.com/maubot/maubot", author="Tulir Asokan", @@ -16,9 +16,11 @@ setuptools.setup( packages=setuptools.find_packages(), install_requires=[ + "mautrix>=0.4,<0.5", "aiohttp>=3.0.1,<4", "SQLAlchemy>=1.2.3,<2", - "Markdown>=2.6.11,<3", + "alembic>=1.0.0,<2", + "commonmark>=0.8.1,<1", "ruamel.yaml>=0.15.35,<0.16", ], diff --git a/tmp/fzipimport.py b/tmp/fzipimport.py new file mode 100644 index 0000000..7315a47 --- /dev/null +++ b/tmp/fzipimport.py @@ -0,0 +1,742 @@ +"""zipimport provides support for importing Python modules from Zip archives. + +This module exports three objects: +- zipimporter: a class; its constructor takes a path to a Zip archive. +- ZipImportError: exception raised by zipimporter objects. It's a + subclass of ImportError, so it can be caught as ImportError, too. +- _zip_directory_cache: a dict, mapping archive paths to zip directory + info dicts, as used in zipimporter._files. + +It is usually not needed to use the zipimport module explicitly; it is +used by the builtin import mechanism for sys.path items that are paths +to Zip archives. +""" + +#from importlib import _bootstrap_external +#from importlib import _bootstrap # for _verbose_message +from importlib import _bootstrap_external +from importlib import _bootstrap # for _verbose_message +import _imp # for check_hash_based_pycs +import _io # for open +import marshal # for loads +import sys # for modules +import time # for mktime + +__all__ = ['ZipImportError', 'zipimporter'] + + +def _unpack_uint32(data): + """Convert 4 bytes in little-endian to an integer.""" + assert len(data) == 4 + return int.from_bytes(data, 'little') + +def _unpack_uint16(data): + """Convert 2 bytes in little-endian to an integer.""" + assert len(data) == 2 + return int.from_bytes(data, 'little') + + +path_sep = _bootstrap_external.path_sep +alt_path_sep = _bootstrap_external.path_separators[1:] + + +class ZipImportError(ImportError): + pass + +# _read_directory() cache +_zip_directory_cache = {} + +_module_type = type(sys) + + +class zipimporter: + """zipimporter(archivepath) -> zipimporter object + + Create a new zipimporter instance. 'archivepath' must be a path to + a zipfile, or to a specific path inside a zipfile. For example, it can be + '/tmp/myimport.zip', or '/tmp/myimport.zip/mydirectory', if mydirectory is a + valid directory inside the archive. + + 'ZipImportError is raised if 'archivepath' doesn't point to a valid Zip + archive. + + The 'archive' attribute of zipimporter objects contains the name of the + zipfile targeted. + """ + + # Split the "subdirectory" from the Zip archive path, lookup a matching + # entry in sys.path_importer_cache, fetch the file directory from there + # if found, or else read it from the archive. + def __init__(self, path): + if not isinstance(path, str): + import os + path = os.fsdecode(path) + if not path: + raise ZipImportError('archive path is empty', path=path) + if alt_path_sep: + path = path.replace(alt_path_sep, path_sep) + + prefix = [] + while True: + try: + st = _bootstrap_external._path_stat(path) + except (OSError, ValueError): + # On Windows a ValueError is raised for too long paths. + # Back up one path element. + dirname, basename = _bootstrap_external._path_split(path) + if dirname == path: + raise ZipImportError('not a Zip file', path=path) + path = dirname + prefix.append(basename) + else: + # it exists + if (st.st_mode & 0o170000) != 0o100000: # stat.S_ISREG + # it's a not file + raise ZipImportError('not a Zip file', path=path) + break + + try: + files = _zip_directory_cache[path] + except KeyError: + files = _read_directory(path) + _zip_directory_cache[path] = files + self._files = files + self.archive = path + # a prefix directory following the ZIP file path. + self.prefix = _bootstrap_external._path_join(*prefix[::-1]) + if self.prefix: + self.prefix += path_sep + + def reset_cache(self): + self._files = _read_directory(self.archive) + _zip_directory_cache[self.archive] = self._files + + # Check whether we can satisfy the import of the module named by + # 'fullname', or whether it could be a portion of a namespace + # package. Return self if we can load it, a string containing the + # full path if it's a possible namespace portion, None if we + # can't load it. + def find_loader(self, fullname, path=None): + """find_loader(fullname, path=None) -> self, str or None. + + Search for a module specified by 'fullname'. 'fullname' must be the + fully qualified (dotted) module name. It returns the zipimporter + instance itself if the module was found, a string containing the + full path name if it's possibly a portion of a namespace package, + or None otherwise. The optional 'path' argument is ignored -- it's + there for compatibility with the importer protocol. + """ + mi = _get_module_info(self, fullname) + if mi is not None: + # This is a module or package. + return self, [] + + # Not a module or regular package. See if this is a directory, and + # therefore possibly a portion of a namespace package. + + # We're only interested in the last path component of fullname + # earlier components are recorded in self.prefix. + modpath = _get_module_path(self, fullname) + if _is_dir(self, modpath): + # This is possibly a portion of a namespace + # package. Return the string representing its path, + # without a trailing separator. + return None, [f'{self.archive}{path_sep}{modpath}'] + + return None, [] + + + # Check whether we can satisfy the import of the module named by + # 'fullname'. Return self if we can, None if we can't. + def find_module(self, fullname, path=None): + """find_module(fullname, path=None) -> self or None. + + Search for a module specified by 'fullname'. 'fullname' must be the + fully qualified (dotted) module name. It returns the zipimporter + instance itself if the module was found, or None if it wasn't. + The optional 'path' argument is ignored -- it's there for compatibility + with the importer protocol. + """ + return self.find_loader(fullname, path)[0] + + + def get_code(self, fullname): + """get_code(fullname) -> code object. + + Return the code object for the specified module. Raise ZipImportError + if the module couldn't be found. + """ + code, ispackage, modpath = _get_module_code(self, fullname) + return code + + + def get_data(self, pathname): + """get_data(pathname) -> string with file data. + + Return the data associated with 'pathname'. Raise OSError if + the file wasn't found. + """ + if alt_path_sep: + pathname = pathname.replace(alt_path_sep, path_sep) + + key = pathname + if pathname.startswith(self.archive + path_sep): + key = pathname[len(self.archive + path_sep):] + + try: + toc_entry = self._files[key] + except KeyError: + raise OSError(0, '', key) + return _get_data(self.archive, toc_entry) + + + # Return a string matching __file__ for the named module + def get_filename(self, fullname): + """get_filename(fullname) -> filename string. + + Return the filename for the specified module. + """ + # Deciding the filename requires working out where the code + # would come from if the module was actually loaded + code, ispackage, modpath = _get_module_code(self, fullname) + return modpath + + + def get_source(self, fullname): + """get_source(fullname) -> source string. + + Return the source code for the specified module. Raise ZipImportError + if the module couldn't be found, return None if the archive does + contain the module, but has no source for it. + """ + mi = _get_module_info(self, fullname) + if mi is None: + raise ZipImportError(f"can't find module {fullname!r}", name=fullname) + + path = _get_module_path(self, fullname) + if mi: + fullpath = _bootstrap_external._path_join(path, '__init__.py') + else: + fullpath = f'{path}.py' + + try: + toc_entry = self._files[fullpath] + except KeyError: + # we have the module, but no source + return None + return _get_data(self.archive, toc_entry).decode() + + + # Return a bool signifying whether the module is a package or not. + def is_package(self, fullname): + """is_package(fullname) -> bool. + + Return True if the module specified by fullname is a package. + Raise ZipImportError if the module couldn't be found. + """ + mi = _get_module_info(self, fullname) + if mi is None: + raise ZipImportError(f"can't find module {fullname!r}", name=fullname) + return mi + + + # Load and return the module named by 'fullname'. + def load_module(self, fullname): + """load_module(fullname) -> module. + + Load the module specified by 'fullname'. 'fullname' must be the + fully qualified (dotted) module name. It returns the imported + module, or raises ZipImportError if it wasn't found. + """ + code, ispackage, modpath = _get_module_code(self, fullname) + mod = sys.modules.get(fullname) + if mod is None or not isinstance(mod, _module_type): + mod = _module_type(fullname) + sys.modules[fullname] = mod + mod.__loader__ = self + + try: + if ispackage: + # add __path__ to the module *before* the code gets + # executed + path = _get_module_path(self, fullname) + fullpath = _bootstrap_external._path_join(self.archive, path) + mod.__path__ = [fullpath] + + if not hasattr(mod, '__builtins__'): + mod.__builtins__ = __builtins__ + _bootstrap_external._fix_up_module(mod.__dict__, fullname, modpath) + exec(code, mod.__dict__) + except: + del sys.modules[fullname] + raise + + try: + mod = sys.modules[fullname] + except KeyError: + raise ImportError(f'Loaded module {fullname!r} not found in sys.modules') + _bootstrap._verbose_message('import {} # loaded from Zip {}', fullname, modpath) + return mod + + + def get_resource_reader(self, fullname): + """Return the ResourceReader for a package in a zip file. + + If 'fullname' is a package within the zip file, return the + 'ResourceReader' object for the package. Otherwise return None. + """ + try: + if not self.is_package(fullname): + return None + except ZipImportError: + return None + if not _ZipImportResourceReader._registered: + from importlib.abc import ResourceReader + ResourceReader.register(_ZipImportResourceReader) + _ZipImportResourceReader._registered = True + return _ZipImportResourceReader(self, fullname) + + + def __repr__(self): + return f'' + + +# _zip_searchorder defines how we search for a module in the Zip +# archive: we first search for a package __init__, then for +# non-package .pyc, and .py entries. The .pyc entries +# are swapped by initzipimport() if we run in optimized mode. Also, +# '/' is replaced by path_sep there. +_zip_searchorder = ( + (path_sep + '__init__.pyc', True, True), + (path_sep + '__init__.py', False, True), + ('.pyc', True, False), + ('.py', False, False), +) + +# Given a module name, return the potential file path in the +# archive (without extension). +def _get_module_path(self, fullname): + return self.prefix + fullname.rpartition('.')[2] + +# Does this path represent a directory? +def _is_dir(self, path): + # See if this is a "directory". If so, it's eligible to be part + # of a namespace package. We test by seeing if the name, with an + # appended path separator, exists. + dirpath = path + path_sep + # If dirpath is present in self._files, we have a directory. + return dirpath in self._files + +# Return some information about a module. +def _get_module_info(self, fullname): + path = _get_module_path(self, fullname) + for suffix, isbytecode, ispackage in _zip_searchorder: + fullpath = path + suffix + if fullpath in self._files: + return ispackage + return None + + +# implementation + +# _read_directory(archive) -> files dict (new reference) +# +# Given a path to a Zip archive, build a dict, mapping file names +# (local to the archive, using SEP as a separator) to toc entries. +# +# A toc_entry is a tuple: +# +# (__file__, # value to use for __file__, available for all files, +# # encoded to the filesystem encoding +# compress, # compression kind; 0 for uncompressed +# data_size, # size of compressed data on disk +# file_size, # size of decompressed data +# file_offset, # offset of file header from start of archive +# time, # mod time of file (in dos format) +# date, # mod data of file (in dos format) +# crc, # crc checksum of the data +# ) +# +# Directories can be recognized by the trailing path_sep in the name, +# data_size and file_offset are 0. +def _read_directory(archive): + try: + fp = _io.open(archive, 'rb') + except OSError: + raise ZipImportError(f"can't open Zip file: {archive!r}", path=archive) + + with fp: + try: + fp.seek(-22, 2) + header_position = fp.tell() + buffer = fp.read(22) + except OSError: + raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive) + if len(buffer) != 22: + raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive) + if buffer[:4] != b'PK\x05\x06': + # Bad: End of Central Dir signature + raise ZipImportError(f'not a Zip file: {archive!r}', path=archive) + + header_size = _unpack_uint32(buffer[12:16]) + header_offset = _unpack_uint32(buffer[16:20]) + if header_position < header_size: + raise ZipImportError(f'bad central directory size: {archive!r}', path=archive) + if header_position < header_offset: + raise ZipImportError(f'bad central directory offset: {archive!r}', path=archive) + header_position -= header_size + arc_offset = header_position - header_offset + if arc_offset < 0: + raise ZipImportError(f'bad central directory size or offset: {archive!r}', path=archive) + + files = {} + # Start of Central Directory + count = 0 + try: + fp.seek(header_position) + except OSError: + raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive) + while True: + buffer = fp.read(46) + if len(buffer) < 4: + raise EOFError('EOF read where not expected') + # Start of file header + if buffer[:4] != b'PK\x01\x02': + break # Bad: Central Dir File Header + if len(buffer) != 46: + raise EOFError('EOF read where not expected') + flags = _unpack_uint16(buffer[8:10]) + compress = _unpack_uint16(buffer[10:12]) + time = _unpack_uint16(buffer[12:14]) + date = _unpack_uint16(buffer[14:16]) + crc = _unpack_uint32(buffer[16:20]) + data_size = _unpack_uint32(buffer[20:24]) + file_size = _unpack_uint32(buffer[24:28]) + name_size = _unpack_uint16(buffer[28:30]) + extra_size = _unpack_uint16(buffer[30:32]) + comment_size = _unpack_uint16(buffer[32:34]) + file_offset = _unpack_uint32(buffer[42:46]) + header_size = name_size + extra_size + comment_size + if file_offset > header_offset: + raise ZipImportError(f'bad local header offset: {archive!r}', path=archive) + file_offset += arc_offset + + try: + name = fp.read(name_size) + except OSError: + raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive) + if len(name) != name_size: + raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive) + # On Windows, calling fseek to skip over the fields we don't use is + # slower than reading the data because fseek flushes stdio's + # internal buffers. See issue #8745. + try: + if len(fp.read(header_size - name_size)) != header_size - name_size: + raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive) + except OSError: + raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive) + + if flags & 0x800: + # UTF-8 file names extension + name = name.decode() + else: + # Historical ZIP filename encoding + try: + name = name.decode('ascii') + except UnicodeDecodeError: + name = name.decode('latin1').translate(cp437_table) + + name = name.replace('/', path_sep) + path = _bootstrap_external._path_join(archive, name) + t = (path, compress, data_size, file_size, file_offset, time, date, crc) + files[name] = t + count += 1 + _bootstrap._verbose_message('zipimport: found {} names in {!r}', count, archive) + return files + +# During bootstrap, we may need to load the encodings +# package from a ZIP file. But the cp437 encoding is implemented +# in Python in the encodings package. +# +# Break out of this dependency by using the translation table for +# the cp437 encoding. +cp437_table = ( + # ASCII part, 8 rows x 16 chars + '\x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f' + '\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f' + ' !"#$%&\'()*+,-./' + '0123456789:;<=>?' + '@ABCDEFGHIJKLMNO' + 'PQRSTUVWXYZ[\\]^_' + '`abcdefghijklmno' + 'pqrstuvwxyz{|}~\x7f' + # non-ASCII part, 16 rows x 8 chars + '\xc7\xfc\xe9\xe2\xe4\xe0\xe5\xe7' + '\xea\xeb\xe8\xef\xee\xec\xc4\xc5' + '\xc9\xe6\xc6\xf4\xf6\xf2\xfb\xf9' + '\xff\xd6\xdc\xa2\xa3\xa5\u20a7\u0192' + '\xe1\xed\xf3\xfa\xf1\xd1\xaa\xba' + '\xbf\u2310\xac\xbd\xbc\xa1\xab\xbb' + '\u2591\u2592\u2593\u2502\u2524\u2561\u2562\u2556' + '\u2555\u2563\u2551\u2557\u255d\u255c\u255b\u2510' + '\u2514\u2534\u252c\u251c\u2500\u253c\u255e\u255f' + '\u255a\u2554\u2569\u2566\u2560\u2550\u256c\u2567' + '\u2568\u2564\u2565\u2559\u2558\u2552\u2553\u256b' + '\u256a\u2518\u250c\u2588\u2584\u258c\u2590\u2580' + '\u03b1\xdf\u0393\u03c0\u03a3\u03c3\xb5\u03c4' + '\u03a6\u0398\u03a9\u03b4\u221e\u03c6\u03b5\u2229' + '\u2261\xb1\u2265\u2264\u2320\u2321\xf7\u2248' + '\xb0\u2219\xb7\u221a\u207f\xb2\u25a0\xa0' +) + +_importing_zlib = False + +# Return the zlib.decompress function object, or NULL if zlib couldn't +# be imported. The function is cached when found, so subsequent calls +# don't import zlib again. +def _get_decompress_func(): + global _importing_zlib + if _importing_zlib: + # Someone has a zlib.py[co] in their Zip file + # let's avoid a stack overflow. + _bootstrap._verbose_message('zipimport: zlib UNAVAILABLE') + raise ZipImportError("can't decompress data; zlib not available") + + _importing_zlib = True + try: + from zlib import decompress + except Exception: + _bootstrap._verbose_message('zipimport: zlib UNAVAILABLE') + raise ZipImportError("can't decompress data; zlib not available") + finally: + _importing_zlib = False + + _bootstrap._verbose_message('zipimport: zlib available') + return decompress + +# Given a path to a Zip file and a toc_entry, return the (uncompressed) data. +def _get_data(archive, toc_entry): + datapath, compress, data_size, file_size, file_offset, time, date, crc = toc_entry + if data_size < 0: + raise ZipImportError('negative data size') + + with _io.open(archive, 'rb') as fp: + # Check to make sure the local file header is correct + try: + fp.seek(file_offset) + except OSError: + raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive) + buffer = fp.read(30) + if len(buffer) != 30: + raise EOFError('EOF read where not expected') + + if buffer[:4] != b'PK\x03\x04': + # Bad: Local File Header + raise ZipImportError(f'bad local file header: {archive!r}', path=archive) + + name_size = _unpack_uint16(buffer[26:28]) + extra_size = _unpack_uint16(buffer[28:30]) + header_size = 30 + name_size + extra_size + file_offset += header_size # Start of file data + try: + fp.seek(file_offset) + except OSError: + raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive) + raw_data = fp.read(data_size) + if len(raw_data) != data_size: + raise OSError("zipimport: can't read data") + + if compress == 0: + # data is not compressed + return raw_data + + # Decompress with zlib + try: + decompress = _get_decompress_func() + except Exception: + raise ZipImportError("can't decompress data; zlib not available") + return decompress(raw_data, -15) + + +# Lenient date/time comparison function. The precision of the mtime +# in the archive is lower than the mtime stored in a .pyc: we +# must allow a difference of at most one second. +def _eq_mtime(t1, t2): + # dostime only stores even seconds, so be lenient + return abs(t1 - t2) <= 1 + +# Given the contents of a .py[co] file, unmarshal the data +# and return the code object. Return None if it the magic word doesn't +# match (we do this instead of raising an exception as we fall back +# to .py if available and we don't want to mask other errors). +def _unmarshal_code(pathname, data, mtime): + if len(data) < 16: + raise ZipImportError('bad pyc data') + + if data[:4] != _bootstrap_external.MAGIC_NUMBER: + _bootstrap._verbose_message('{!r} has bad magic', pathname) + return None # signal caller to try alternative + + flags = _unpack_uint32(data[4:8]) + if flags != 0: + # Hash-based pyc. We currently refuse to handle checked hash-based + # pycs. We could validate hash-based pycs against the source, but it + # seems likely that most people putting hash-based pycs in a zipfile + # will use unchecked ones. + if (_imp.check_hash_based_pycs != 'never' and + (flags != 0x1 or _imp.check_hash_based_pycs == 'always')): + return None + elif mtime != 0 and not _eq_mtime(_unpack_uint32(data[8:12]), mtime): + _bootstrap._verbose_message('{!r} has bad mtime', pathname) + return None # signal caller to try alternative + + # XXX the pyc's size field is ignored; timestamp collisions are probably + # unimportant with zip files. + code = marshal.loads(data[16:]) + if not isinstance(code, _code_type): + raise TypeError(f'compiled module {pathname!r} is not a code object') + return code + +_code_type = type(_unmarshal_code.__code__) + + +# Replace any occurrences of '\r\n?' in the input string with '\n'. +# This converts DOS and Mac line endings to Unix line endings. +def _normalize_line_endings(source): + source = source.replace(b'\r\n', b'\n') + source = source.replace(b'\r', b'\n') + return source + +# Given a string buffer containing Python source code, compile it +# and return a code object. +def _compile_source(pathname, source): + source = _normalize_line_endings(source) + return compile(source, pathname, 'exec', dont_inherit=True) + +# Convert the date/time values found in the Zip archive to a value +# that's compatible with the time stamp stored in .pyc files. +def _parse_dostime(d, t): + return time.mktime(( + (d >> 9) + 1980, # bits 9..15: year + (d >> 5) & 0xF, # bits 5..8: month + d & 0x1F, # bits 0..4: day + t >> 11, # bits 11..15: hours + (t >> 5) & 0x3F, # bits 8..10: minutes + (t & 0x1F) * 2, # bits 0..7: seconds / 2 + -1, -1, -1)) + +# Given a path to a .pyc file in the archive, return the +# modification time of the matching .py file, or 0 if no source +# is available. +def _get_mtime_of_source(self, path): + try: + # strip 'c' or 'o' from *.py[co] + assert path[-1:] in ('c', 'o') + path = path[:-1] + toc_entry = self._files[path] + # fetch the time stamp of the .py file for comparison + # with an embedded pyc time stamp + time = toc_entry[5] + date = toc_entry[6] + return _parse_dostime(date, time) + except (KeyError, IndexError, TypeError): + return 0 + +# Get the code object associated with the module specified by +# 'fullname'. +def _get_module_code(self, fullname): + path = _get_module_path(self, fullname) + for suffix, isbytecode, ispackage in _zip_searchorder: + fullpath = path + suffix + _bootstrap._verbose_message('trying {}{}{}', self.archive, path_sep, fullpath, verbosity=2) + try: + toc_entry = self._files[fullpath] + except KeyError: + pass + else: + modpath = toc_entry[0] + data = _get_data(self.archive, toc_entry) + if isbytecode: + mtime = _get_mtime_of_source(self, fullpath) + code = _unmarshal_code(modpath, data, mtime) + else: + code = _compile_source(modpath, data) + if code is None: + # bad magic number or non-matching mtime + # in byte code, try next + continue + modpath = toc_entry[0] + return code, ispackage, modpath + else: + raise ZipImportError(f"can't find module {fullname!r}", name=fullname) + + +class _ZipImportResourceReader: + """Private class used to support ZipImport.get_resource_reader(). + + This class is allowed to reference all the innards and private parts of + the zipimporter. + """ + _registered = False + + def __init__(self, zipimporter, fullname): + self.zipimporter = zipimporter + self.fullname = fullname + + def open_resource(self, resource): + fullname_as_path = self.fullname.replace('.', '/') + path = f'{fullname_as_path}/{resource}' + from io import BytesIO + try: + return BytesIO(self.zipimporter.get_data(path)) + except OSError: + raise FileNotFoundError(path) + + def resource_path(self, resource): + # All resources are in the zip file, so there is no path to the file. + # Raising FileNotFoundError tells the higher level API to extract the + # binary data and create a temporary file. + raise FileNotFoundError + + def is_resource(self, name): + # Maybe we could do better, but if we can get the data, it's a + # resource. Otherwise it isn't. + fullname_as_path = self.fullname.replace('.', '/') + path = f'{fullname_as_path}/{name}' + try: + self.zipimporter.get_data(path) + except OSError: + return False + return True + + def contents(self): + # This is a bit convoluted, because fullname will be a module path, + # but _files is a list of file names relative to the top of the + # archive's namespace. We want to compare file paths to find all the + # names of things inside the module represented by fullname. So we + # turn the module path of fullname into a file path relative to the + # top of the archive, and then we iterate through _files looking for + # names inside that "directory". + from pathlib import Path + fullname_path = Path(self.zipimporter.get_filename(self.fullname)) + relative_path = fullname_path.relative_to(self.zipimporter.archive) + # Don't forget that fullname names a package, so its path will include + # __init__.py, which we want to ignore. + assert relative_path.name == '__init__.py' + package_path = relative_path.parent + subdirs_seen = set() + for filename in self.zipimporter._files: + try: + relative = Path(filename).relative_to(package_path) + except ValueError: + continue + # If the path of the file (which is relative to the top of the zip + # namespace), relative to the package given when the resource + # reader was created, has a parent, then it's a name in a + # subdirectory and thus we skip it. + parent_name = relative.parent.name + if len(parent_name) == 0: + yield relative.name + elif parent_name not in subdirs_seen: + subdirs_seen.add(parent_name) + yield parent_name