def __init__(self, filepath, url=None):
self._filepath = filepath
self.url = url
self._compressed = check_compressed_file(filepath)
def __analyze_non_remote(self, dirname):
"""Walk recursively the directory looking for files,
and uncompress them. Then __analyze_local_directory is called."""
# Check if directory to stored uncompressed files already exists
mbox_dir = os.path.join(self.MBOX_DIR, dirname.lstrip('/'))
if not os.path.exists(mbox_dir):
os.makedirs(mbox_dir)
# Compressed files are left in their original location,
# because they can be uncompressed from that location
filepaths = []
for root, dirs, files in os.walk(dirname):
filepaths += [os.path.join(root, filename) for filename in files]
# If the file is for the current month (MailMan filename
# YYYY-MMM.txt.gz) don't mark as visited, and download again
# Assuming this is run daily, it's better to take yesterday's date,
# to ensure we get all of last month's email when the month rolls over.
yesterday= datetime.datetime.today() + datetime.timedelta(days=-1)
this_month= yesterday.strftime(mailmanfmt)
files_to_analyze = {}
url_list = []
for filepath in filepaths:
# Check if already analyzed
status = self.db.check_compressed_file(filepath)
# If the file is for the current month, reimport
current_month = -1 != filepath.find(this_month)
if current_month:
self.__print_output('Found substring %s in URL %s...' % \
(this_month, filepath))
# If already visited, ignore, unless it's for the current month
if status == self.db.VISITED and not current_month:
self.__print_output('Already analyzed %s' % filepath)
continue
# If not, set visited
# (before uncompressing, otherwise the db will point towards
# the uncompressed temporary file)
today = datetime.datetime.today().strftime(datetimefmt)
self.db.set_visited_url(filepath, dirname, today, self.db.NEW)
# Check if compressed
extension = check_compressed_file(filepath)
if extension:
# If compressed, uncompress and get the raw filepath
filepaths = uncompress_file(filepath, extension, mbox_dir)
# __uncompress_file returns a list containing
# the path to all the uncompressed files
# (for instance, a tar file may contain more than one file)
files_to_analyze.setdefault(filepath, []).extend(filepaths)
else:
# File was not uncompressed, so there is only
# one file to append
files_to_analyze.setdefault(filepath, []).append(filepath)
url_list.append(filepath)
# The archives are usually retrieved in descending
# chronological order (because the newest archives are always
# shown on the top of the archives)
# So we will analyze the list of files in the order inversed
# to the order in they were retrieved
url_list.reverse()
return self.__analyze_list_of_files(dirname, url_list,
files_to_analyze)
def __init__(self, filepath, url=None):
self._filepath = filepath
self.url = url
self._compressed = check_compressed_file(filepath)
def __analyze_remote(self, url):
"""Download the archives from the remote url, stores and parses them."""
# Check directories to stored the archives
target = re.sub('^(http|ftp)[s]{0,1}://', '', url)
compressed_dir = os.path.join(self.COMPRESSED_DIR,
target)
mbox_dir = os.path.join(self.MBOX_DIR, target)
if not os.path.exists(compressed_dir):
os.makedirs(compressed_dir)
if not os.path.exists(mbox_dir):
os.makedirs(mbox_dir)
# If the file is for the current month (MailMan filename
# YYYY-MMM.txt.gz) don't mark as visited, and download again
# Assuming this is run daily, it's better to take yesterday's date,
# to ensure we get all of last month's email when the month rolls over.
yesterday = datetime.datetime.today() + datetime.timedelta(days=-1)
this_month = yesterday.strftime(mailmanfmt)
# Get all the links listed in the URL
htmlparser = MyHTMLParser(url, self.web_user, self.web_password)
links = htmlparser.get_mboxes_links()
filepaths = []
for link in links:
basename = os.path.basename(link)
destfilename = os.path.join(compressed_dir, basename)
# If the URL is for the current month, always retrieve.
# Otherwise, check visited status & local files first
if link.find(this_month) >= 0:
self.__print_output('Found substring %s in URL %s...' %
(this_month, link))
self.__print_output('Retrieving %s...' % link)
retrieve_remote_file(link, destfilename, self.web_user,
self.web_password)
elif os.path.exists(destfilename): # Check if already downloaded
self.__print_output('Already downloaded %s' % link)
else:
self.__print_output('Retrieving %s...' % link)
retrieve_remote_file(link, destfilename, self.web_user,
self.web_password)
filepaths.append((link, destfilename))
files_to_analyze = {}
url_list = []
for link, filepath in filepaths:
# Check if already analyzed
status = self.db.check_compressed_file(filepath)
# If the file is for the current month, reimport
current_month = -1 != filepath.find(this_month)
if current_month:
self.__print_output('Found substring %s in URL %s...' % \
(this_month, filepath))
# If already visited, ignore, unless it's for the current month
if status == self.db.VISITED and not current_month:
self.__print_output('Already analyzed %s' % filepath)
continue
# If not, set visited
# (before uncompressing, otherwise the db will point towards
# the uncompressed temporary file)
today = datetime.datetime.today().strftime(datetimefmt)
self.db.set_visited_url(link, url, today, self.db.NEW)
# Check if compressed
extension = check_compressed_file(filepath)
if extension:
# If compressed, uncompress and get the raw filepath
filepaths = uncompress_file(filepath, extension, mbox_dir)
# __uncompress_file returns a list containing
# the path to all the uncompressed files
# (for instance, a tar file may contain more than one file)
files_to_analyze.setdefault(link, []).extend(filepaths)
else:
# File was not uncompressed, so there is only
# one file to append
files_to_analyze.setdefault(link, []).append(filepath)
url_list.append(link)
# The archives are usually retrieved in descending
# chronological order (because the newest archives are always
# shown on the top of the archives)
# So we will analyze the list of files in the order inversed
# to the order in they were retrieved
url_list.reverse()
return self.__analyze_list_of_files(url, url_list, files_to_analyze)
