move http progress downloader class into own tool py

1 files changed, 53 insertions, 0 deletions

diff --git a/lib/python/Tools/Downloader.py b/lib/python/Tools/Downloader.py
new file mode 100644
index 00000000..ffc24c1c
--- /dev/null
+++ b/lib/python/Tools/Downloader.py
@@ -0,0 +1,53 @@
+from twisted.web import client
+from twisted.internet import reactor, defer
+from twisted.python import failure
+
+class HTTPProgressDownloader(client.HTTPDownloader):
+	def __init__(self, url, outfile, headers=None):
+		client.HTTPDownloader.__init__(self, url, outfile, headers=headers, agent="Dreambox HTTP Downloader")
+		self.status = None
+		self.progress_callback = None
+		self.deferred = defer.Deferred()
+
+	def noPage(self, reason):
+		if self.status == "304":
+			print reason.getErrorMessage()
+			client.HTTPDownloader.page(self, "")
+		else:
+			client.HTTPDownloader.noPage(self, reason)
+
+	def gotHeaders(self, headers):
+		if self.status == "200":
+			if headers.has_key("content-length"):
+				self.totalbytes = int(headers["content-length"][0])
+			else:
+				self.totalbytes = 0
+			self.currentbytes = 0.0
+		return client.HTTPDownloader.gotHeaders(self, headers)
+
+	def pagePart(self, packet):
+		if self.status == "200":
+			self.currentbytes += len(packet)
+		if self.totalbytes and self.progress_callback:
+			self.progress_callback(self.currentbytes, self.totalbytes)
+		return client.HTTPDownloader.pagePart(self, packet)
+
+	def pageEnd(self):
+		return client.HTTPDownloader.pageEnd(self)
+
+class downloadWithProgress:
+	def __init__(self, url, outputfile, contextFactory=None, *args, **kwargs):
+		scheme, host, port, path = client._parse(url)
+		self.factory = HTTPProgressDownloader(url, outputfile, *args, **kwargs)
+		self.connection = reactor.connectTCP(host, port, self.factory)
+
+	def start(self):
+		return self.factory.deferred
+
+	def stop(self):
+		print "[stop]"
+		self.connection.disconnect()
+
+	def addProgress(self, progress_callback):
+		print "[addProgress]"
+		self.factory.progress_callback = progress_callback