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#!/usr/bin/python
import sse_feed, sse_db
from sse_config import *
from sse_defs import *
import tarfile, zipfile, sys, os, time, zlib
from md5 import new as message_digest
def uncompress_tar(archive, root, package_id, meta = {}):
n = 0
f = tarfile.open(archive, "r")
print "Processing TAR file %s." % archive
while True:
i = f.next()
if i is None:
break
if not i.isreg():
continue
if not sse_feed.supported_source(i.name):
continue
dst = os.path.join(root, i.name)
if os.access(dst, os.F_OK):
print "WARNING: File '%s' already extracted." % dst
continue
try:
os.makedirs(os.path.dirname(dst))
except:
pass
x = f.extractfile(i)
o = file(dst, "w")
while True:
data = x.read(SSE_BLOCK_SIZE)
if len(data) <= 0:
break
o.write(data)
o.close()
os.utime(dst, (i.mtime, i.mtime))
sse_feed.process_source(archive, root, i.name, package_id, meta)
n += 1
f.close()
return n
def uncompress_zip(archive, root, package_id, meta = {}):
n = 0
f = zipfile.ZipFile(archive, "r")
print "Processing ZIP file %s." % archive
for i in f.infolist():
if not sse_feed.supported_source(i.filename):
continue
dst = os.path.join(root, i.filename)
if os.access(dst, os.F_OK):
print "WARNING: File '%s' already extracted" % dst
continue
try:
os.makedirs(os.path.dirname(dst))
except:
pass
o = file(dst, "w")
o.write(f.read(i.filename))
o.close()
(year, month, day, hour, minute, second) = i.date_time
t = time.mktime([year, month, day, hour, minute, second, 0, 0, 0])
os.utime(dst, (t, t))
sse_feed.process_source(archive, root, i.filename, package_id, meta)
n += 1
f.close()
return n
def uncompress_archive(archive, root, package_id, meta = {}):
n = -1
try:
n = uncompress_tar(archive, root, package_id, meta)
except tarfile.TarError:
try:
n = uncompress_zip(archive, root, package_id, meta)
except zipfile.error:
print "WARNING: Unknown file format."
except IOError:
print "WARNING: Broken archive."
except IOError, e:
if e[0] == "CRC check failed":
print "WARNING: Broken archive."
else:
raise e
except zlib.error:
print "WARNING: Broken archive."
return n
def calc_md(fn):
m = message_digest()
f = file(fn)
while True:
data = f.read(1024)
if len(data) <= 0:
break
m.update(data)
f.close()
return m.hexdigest()
def rm_rf(root):
for root, dirs, files in os.walk(root, topdown = False):
for f in files:
os.remove(os.path.join(root, f))
for d in dirs:
os.rmdir(os.path.join(root, d))
os.rmdir(root)
def clear_dir(root):
try:
rm_rf(root)
except:
pass
os.makedirs(root)
def process_archive(archive, meta = {}, recid = None, provider_id = SSE_PROVIDER_NONE):
if recid is None:
recid = os.path.basename(archive)
if not meta.has_key("md"):
md = calc_md(archive)
meta["md"] = md
sse_db.start_transaction()
done = False
try:
package_id = sse_db.find_package(md)
if not package_id is None:
print "Package '%s' already in database." % recid
# Update provider record
sse_db.new_provider_record(recid, package_id, provider_id, meta)
sse_db.commit()
done = True
else:
root = os.path.join(HOME, "sources", md)
package_id = sse_db.new_package(archive, root, meta)
print "Package '%s' is new in database." % recid
sse_db.new_provider_record(recid, package_id, provider_id, meta)
clear_dir(root)
n = uncompress_archive(archive, root, package_id, meta)
if n >= 0:
print "Successfully processed %i files." % n
sse_db.commit()
done = True
finally:
if not done:
sse_db.rollback()
if __name__ == "__main__":
process_archive(sys.argv[1])
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