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Diffstat (limited to 'module/plugins/hooks/Checksum.py')
| -rw-r--r-- | module/plugins/hooks/Checksum.py | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/module/plugins/hooks/Checksum.py b/module/plugins/hooks/Checksum.py deleted file mode 100644 index b290838bb..000000000 --- a/module/plugins/hooks/Checksum.py +++ /dev/null @@ -1,169 +0,0 @@ -# -*- coding: utf-8 -*- - -""" - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, see <http://www.gnu.org/licenses/>. - - @author: zoidberg -""" -from __future__ import with_statement -import hashlib, zlib -from os import remove -from os.path import getsize, isfile, splitext -import re - -from module.utils import save_join, fs_encode -from module.plugins.Hook import Hook - -def computeChecksum(local_file, algorithm): - if algorithm in getattr(hashlib, "algorithms", ("md5", "sha1", "sha224", "sha256", "sha384", "sha512")): - h = getattr(hashlib, algorithm)() - chunk_size = 128 * h.block_size - - with open(local_file, 'rb') as f: - for chunk in iter(lambda: f.read(chunk_size), ''): - h.update(chunk) - - return h.hexdigest() - - elif algorithm in ("adler32", "crc32"): - hf = getattr(zlib, algorithm) - last = 0 - - with open(local_file, 'rb') as f: - for chunk in iter(lambda: f.read(8192), ''): - last = hf(chunk, last) - - return "%x" % last - - else: - return None - -class Checksum(Hook): - __name__ = "Checksum" - __version__ = "0.07" - __description__ = "Verify downloaded file size and checksum (enable in general preferences)" - __config__ = [("activated", "bool", "Activated", True), - ("action", "fail;retry;nothing", "What to do if check fails?", "retry"), - ("max_tries", "int", "Number of retries", 2)] - __author_name__ = ("zoidberg") - __author_mail__ = ("zoidberg@mujmail.cz") - - methods = { 'sfv':'crc32', 'crc': 'crc32', 'hash': 'md5'} - regexps = { 'sfv': r'^(?P<name>[^;].+)\s+(?P<hash>[0-9A-Fa-f]{8})$', - 'md5': r'^(?P<name>[0-9A-Fa-f]{32}) (?P<file>.+)$', - 'crc': r'filename=(?P<name>.+)\nsize=(?P<size>\d+)\ncrc32=(?P<hash>[0-9A-Fa-f]{8})$', - 'default': r'^(?P<hash>[0-9A-Fa-f]+)\s+\*?(?P<name>.+)$' } - - def setup(self): - if not self.config['general']['checksum']: - self.logInfo("Checksum validation is disabled in general configuration") - - self.algorithms = sorted(getattr(hashlib, "algorithms", ("md5", "sha1", "sha224", "sha256", "sha384", "sha512")), reverse = True) - self.algorithms.extend(["crc32", "adler32"]) - self.formats = self.algorithms + ['sfv', 'crc', 'hash'] - - def downloadFinished(self, pyfile): - """ - Compute checksum for the downloaded file and compare it with the hash provided by the hoster. - pyfile.plugin.check_data should be a dictionary which can contain: - a) if known, the exact filesize in bytes (e.g. "size": 123456789) - b) hexadecimal hash string with algorithm name as key (e.g. "md5": "d76505d0869f9f928a17d42d66326307") - """ - if hasattr(pyfile.plugin, "check_data") and (isinstance(pyfile.plugin.check_data, dict)): - data = pyfile.plugin.check_data.copy() - elif hasattr(pyfile.plugin, "api_data") and (isinstance(pyfile.plugin.api_data, dict)): - data = pyfile.plugin.api_data.copy() - else: - return - - self.logDebug(data) - - if not pyfile.plugin.lastDownload: - self.checkFailed(pyfile, None, "No file downloaded") - - local_file = fs_encode(pyfile.plugin.lastDownload) - #download_folder = self.config['general']['download_folder'] - #local_file = fs_encode(save_join(download_folder, pyfile.package().folder, pyfile.name)) - - if not isfile(local_file): - self.checkFailed(pyfile, None, "File does not exist") - - # validate file size - if "size" in data: - api_size = int(data['size']) - file_size = getsize(local_file) - if api_size != file_size: - self.logWarning("File %s has incorrect size: %d B (%d expected)" % (pyfile.name, file_size, api_size)) - self.checkFailed(pyfile, local_file, "Incorrect file size") - del data['size'] - - # validate checksum - if data and self.config['general']['checksum']: - if "checksum" in data: - data['md5'] = data['checksum'] - - for key in self.algorithms: - if key in data: - checksum = computeChecksum(local_file, key.replace("-","").lower()) - if checksum: - if checksum == data[key]: - self.logInfo('File integrity of "%s" verified by %s checksum (%s).' % (pyfile.name, key.upper(), checksum)) - return - else: - self.logWarning("%s checksum for file %s does not match (%s != %s)" % (key.upper(), pyfile.name, checksum, data[key])) - self.checkFailed(pyfile, local_file, "Checksums do not match") - else: - self.logWarning("Unsupported hashing algorithm: %s" % key.upper()) - else: - self.logWarning("Unable to validate checksum for file %s" % (pyfile.name)) - - def checkFailed(self, pyfile, local_file, msg): - action = self.getConfig("action") - if action == "fail": - pyfile.plugin.fail(reason = msg) - elif action == "retry": - if local_file: - remove(local_file) - pyfile.plugin.retry(reason = msg, max_tries = self.getConfig("max_tries")) - - - def packageFinished(self, pypack): - download_folder = save_join(self.config['general']['download_folder'], pypack.folder, "") - - for link in pypack.getChildren().itervalues(): - file_type = splitext(link["name"])[1][1:].lower() - #self.logDebug(link, file_type) - - if file_type not in self.formats: - continue - - hash_file = fs_encode(save_join(download_folder, link["name"])) - if not isfile(hash_file): - self.logWarning("File not found: %s" % link["name"]) - continue - - with open(hash_file) as f: - text = f.read() - - for m in re.finditer(self.regexps.get(file_type, self.regexps['default']), text): - data = m.groupdict() - self.logDebug(link["name"], data) - - local_file = fs_encode(save_join(download_folder, data["name"])) - algorithm = self.methods.get(file_type, file_type) - checksum = computeChecksum(local_file, algorithm) - if checksum == data["hash"]: - self.logInfo('File integrity of "%s" verified by %s checksum (%s).' % (data["name"], algorithm, checksum)) - else: - self.logWarning("%s checksum for file %s does not match (%s != %s)" % (algorithm, data["name"], checksum, data["hash"]))
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