def __init__(self):
fso.__init__(self, "unzip")
self.name = "unzip"
self.VFS = VFS.Get()
self.vfs = vfs.vfs()
self.fdm = FdManager()
self.origin = None
self.zipcontent = None
self.file = None
self.mapped_files = {}
class UNZIP(fso):
def __init__(self):
fso.__init__(self, "unzip")
self.name = "unzip"
self.VFS = VFS.Get()
self.vfs = vfs.vfs()
self.fdm = FdManager()
self.origin = None
self.zipcontent = None
self.file = None
self.mapped_files = {}
def start(self, args):
origin = args['file'].value()
self.makeZipTree(origin)
def makeZipTree(self, origin):
self.origin = origin
self.file = self.origin.open()
self.zipcontent = mzipfile.ZipFile(self.file)
for zipfile in self.zipcontent.namelist():
idx = zipfile.rfind("/")
if idx != -1:
path = zipfile[:idx]
filename = zipfile[idx+1:]
else:
path = ""
filename = zipfile
parent = self.vfs.getnode(self.origin.absolute() + "/" + path)
if parent == None:
parent = self.makeDirs(path)
attr = self.zipcontent.getinfo(zipfile)
node = ZipNode(filename, attr.file_size, parent, self, zipfile)
node.__disown__()
e = event()
e.value = Variant(self.origin)
self.VFS.notify(e)
def makeDirs(self, folders):
sfolders = folders.split("/")
prev = self.origin
for folder in sfolders:
node = self.vfs.getnode(prev.absolute() + "/" + folder)
if node == None:
node = Node(folder, 0, prev, self)
node.setDir()
node.__disown__()
prev = node
return node
def mappedFile(self, zipfile):
info = self.zipcontent.getinfo(zipfile)
buff = ""
if info.file_size > 0:
buff = self.zipcontent.read(zipfile)
return buff
def nodeToZipFile(self, node):
abs = node.absolute()
orig = self.origin.absolute()
zipfile = abs.replace(orig, "")[1:]
return zipfile
def vopen(self, node):
if not node.size():
return 0
zipfile = self.nodeToZipFile(node)
if zipfile in self.mapped_files.keys():
buff = self.mapped_files[zipfile]["buff"]
self.mapped_files[zipfile]["opened"] += 1
else:
buff = self.mappedFile(zipfile)
self.mapped_files[zipfile] = {}
self.mapped_files[zipfile]["buff"] = buff
self.mapped_files[zipfile]["opened"] = 1
fi = fdinfo()
fi.thisown = False
fi.node = node
fi.offset = 0
fd = self.fdm.push(fi)
return fd
def vread(self, fd, buff, size):
fi = self.fdm.get(fd)
zipfile = self.nodeToZipFile(fi.node)
buff = self.mapped_files[zipfile]["buff"]
if fi.node.size() < fi.offset + size:
size = fi.node.size() - fi.offset
if size <= 0:
return (0, "")
else:
res = (size, buff[fi.offset:fi.offset+size])
fi.offset += size
return res
def vseek(self, fd, offset, whence):
fi = self.fdm.get(fd)
if whence == 0:
if offset <= fi.node.size():
fi.offset = offset
else:
formatted_lines = traceback.format_exc().splitlines()
raise vfsError("[unzip::vseek]" + formatted_lines[-1])
if whence == 1:
if fi.offset + offset > fi.node.size():
fi.offset += offset
else:
formatted_lines = traceback.format_exc().splitlines()
raise vfsError("[unzip::vseek]" + formatted_lines[-1])
if whence == 2:
fi.offset = fi.node.size()
return fi.offset
def vclose(self, fd):
try:
fi = self.fdm.get(fd)
zipfile = self.nodeToZipFile(fi.node)
self.fdm.remove(fd)
if self.mapped_files[zipfile]["opened"] == 1:
del self.mapped_files[zipfile]
else:
self.mapped_files[zipfile]["opened"] -= 1
return 0
except:
return 0
def vtell(self, fd):
fi = self.fdm.get(fd)
return fi.offset
def status(self):
return len(self.mapped_files)
