forked from LBRYCommunity/lbry-sdk
Merge pull request #182 from lbryio/no-cache-static-file
NoCacheStaticFile
This commit is contained in:
alexliebowitz
GitHub
commit
8735112f70
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@ -7,6 +7,7 @@
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# The docstrings in this module contain epytext markup; API documentation
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# may be created by processing this file with epydoc: http://epydoc.sf.net
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import logging
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import binascii
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import time
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@ -21,6 +22,8 @@ import msgformat
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from contact import Contact
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reactor = twisted.internet.reactor
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log = logging.getLogger(__name__)
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class TimeoutError(Exception):
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""" Raised when a RPC times out """
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@ -118,6 +121,9 @@ class KademliaProtocol(protocol.DatagramProtocol):
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except encoding.DecodeError:
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# We received some rubbish here
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return
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except IndexError:
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log.warning("Couldn't decode dht datagram from %s", address)
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return
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message = self._translator.fromPrimitive(msgPrimitive)
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remoteContact = Contact(message.nodeID, address[0], address[1], self)
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@ -12,7 +12,8 @@ from twisted.internet import reactor, defer
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from jsonrpc.proxy import JSONRPCProxy
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from lbrynet.core import log_support
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from lbrynet.lbrynet_daemon.DaemonServer import DaemonServer, DaemonRequest
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from lbrynet.lbrynet_daemon.DaemonServer import DaemonServer
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from lbrynet.lbrynet_daemon.DaemonRequest import DaemonRequest
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from lbrynet.conf import API_CONNECTION_STRING, API_INTERFACE, API_PORT, \
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UI_ADDRESS, DEFAULT_UI_BRANCH, LOG_FILE_NAME
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187
lbrynet/lbrynet_daemon/DaemonRequest.py
Normal file
187
lbrynet/lbrynet_daemon/DaemonRequest.py
Normal file
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@ -0,0 +1,187 @@
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import time
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import cgi
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import mimetools
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import os
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import tempfile
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from twisted.web import server
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class DaemonRequest(server.Request):
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"""
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For LBRY specific request functionality. Currently just provides
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handling for large multipart POST requests, taken from here:
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http://sammitch.ca/2013/07/handling-large-requests-in-twisted/
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For multipart POST requests, this populates self.args with temp
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file objects instead of strings. Note that these files don't auto-delete
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on close because we want to be able to move and rename them.
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"""
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# max amount of memory to allow any ~single~ request argument [ie: POSTed file]
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# note: this value seems to be taken with a grain of salt, memory usage may spike
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# FAR above this value in some cases.
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# eg: set the memory limit to 5 MB, write 2 blocks of 4MB, mem usage will
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# have spiked to 8MB before the data is rolled to disk after the
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# second write completes.
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memorylimit = 1024*1024*100
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# enable/disable debug logging
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do_log = False
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# re-defined only for debug/logging purposes
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def gotLength(self, length):
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if self.do_log:
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print '%f Headers received, Content-Length: %d' % (time.time(), length)
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server.Request.gotLength(self, length)
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# re-definition of twisted.web.server.Request.requestreceived, the only difference
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# is that self.parse_multipart() is used rather than cgi.parse_multipart()
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def requestReceived(self, command, path, version):
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from twisted.web.http import parse_qs
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if self.do_log:
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print '%f Request Received' % time.time()
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self.content.seek(0,0)
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self.args = {}
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self.stack = []
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self.method, self.uri = command, path
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self.clientproto = version
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x = self.uri.split(b'?', 1)
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if len(x) == 1:
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self.path = self.uri
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else:
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self.path, argstring = x
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self.args = parse_qs(argstring, 1)
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# cache the client and server information, we'll need this later to be
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# serialized and sent with the request so CGIs will work remotely
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self.client = self.channel.transport.getPeer()
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self.host = self.channel.transport.getHost()
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# Argument processing
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args = self.args
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ctype = self.requestHeaders.getRawHeaders(b'content-type')
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if ctype is not None:
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ctype = ctype[0]
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if self.method == b"POST" and ctype:
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mfd = b'multipart/form-data'
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key, pdict = cgi.parse_header(ctype)
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if key == b'application/x-www-form-urlencoded':
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args.update(parse_qs(self.content.read(), 1))
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elif key == mfd:
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try:
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self.content.seek(0,0)
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args.update(self.parse_multipart(self.content, pdict))
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#args.update(cgi.parse_multipart(self.content, pdict))
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except KeyError as e:
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if e.args[0] == b'content-disposition':
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# Parse_multipart can't cope with missing
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# content-dispostion headers in multipart/form-data
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# parts, so we catch the exception and tell the client
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# it was a bad request.
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self.channel.transport.write(
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b"HTTP/1.1 400 Bad Request\r\n\r\n")
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self.channel.transport.loseConnection()
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return
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raise
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self.content.seek(0, 0)
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self.process()
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# re-definition of cgi.parse_multipart that uses a single temporary file to store
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# data rather than storing 2 to 3 copies in various lists.
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def parse_multipart(self, fp, pdict):
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if self.do_log:
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print '%f Parsing Multipart data: ' % time.time()
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rewind = fp.tell() #save cursor
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fp.seek(0,0) #reset cursor
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boundary = ""
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if 'boundary' in pdict:
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boundary = pdict['boundary']
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if not cgi.valid_boundary(boundary):
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raise ValueError, ('Invalid boundary in multipart form: %r'
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% (boundary,))
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nextpart = "--" + boundary
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lastpart = "--" + boundary + "--"
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partdict = {}
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terminator = ""
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while terminator != lastpart:
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c_bytes = -1
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data = tempfile.NamedTemporaryFile(delete=False)
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if terminator:
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# At start of next part. Read headers first.
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headers = mimetools.Message(fp)
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clength = headers.getheader('content-length')
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if clength:
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try:
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c_bytes = int(clength)
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except ValueError:
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pass
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if c_bytes > 0:
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data.write(fp.read(c_bytes))
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# Read lines until end of part.
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while 1:
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line = fp.readline()
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if not line:
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terminator = lastpart # End outer loop
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break
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if line[:2] == "--":
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terminator = line.strip()
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if terminator in (nextpart, lastpart):
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break
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data.write(line)
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# Done with part.
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if data.tell() == 0:
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continue
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if c_bytes < 0:
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# if a Content-Length header was not supplied with the MIME part
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# then the trailing line break must be removed.
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# we have data, read the last 2 bytes
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rewind = min(2, data.tell())
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data.seek(-rewind, os.SEEK_END)
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line = data.read(2)
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if line[-2:] == "\r\n":
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data.seek(-2, os.SEEK_END)
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data.truncate()
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elif line[-1:] == "\n":
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data.seek(-1, os.SEEK_END)
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data.truncate()
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line = headers['content-disposition']
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if not line:
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continue
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key, params = cgi.parse_header(line)
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if key != 'form-data':
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continue
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if 'name' in params:
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name = params['name']
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# kludge in the filename
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if 'filename' in params:
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fname_index = name + '_filename'
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if fname_index in partdict:
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partdict[fname_index].append(params['filename'])
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else:
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partdict[fname_index] = [params['filename']]
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else:
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# Unnamed parts are not returned at all.
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continue
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data.seek(0,0)
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if name in partdict:
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partdict[name].append(data)
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else:
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partdict[name] = [data]
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fp.seek(rewind) # Restore cursor
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return partdict
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@ -1,23 +1,12 @@
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import logging
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import os
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import shutil
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import json
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import sys
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import mimetypes
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import mimetools
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import tempfile
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import time
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import cgi
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from appdirs import user_data_dir
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from twisted.web import server, static, resource
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from twisted.internet import abstract, defer, interfaces, error, reactor, task
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from zope.interface import implementer
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from twisted.internet import defer
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from lbrynet.lbrynet_daemon.Daemon import Daemon
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from lbrynet.lbryfilemanager.EncryptedFileDownloader import ManagedEncryptedFileDownloader
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from lbrynet.conf import API_ADDRESS, UI_ADDRESS, DEFAULT_UI_BRANCH, LOG_FILE_NAME
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from lbrynet.lbrynet_daemon.Resources import LBRYindex, HostedEncryptedFile, EncryptedFileUpload
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from lbrynet.conf import API_ADDRESS, DEFAULT_UI_BRANCH, LOG_FILE_NAME
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# TODO: omg, this code is essentially duplicated in Daemon
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@ -32,365 +21,6 @@ lbrynet_log = os.path.join(data_dir, LOG_FILE_NAME)
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log = logging.getLogger(__name__)
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class DaemonRequest(server.Request):
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"""
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For LBRY specific request functionality. Currently just provides
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handling for large multipart POST requests, taken from here:
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http://sammitch.ca/2013/07/handling-large-requests-in-twisted/
|
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|
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For multipart POST requests, this populates self.args with temp
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file objects instead of strings. Note that these files don't auto-delete
|
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on close because we want to be able to move and rename them.
|
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|
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"""
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# max amount of memory to allow any ~single~ request argument [ie: POSTed file]
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# note: this value seems to be taken with a grain of salt, memory usage may spike
|
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# FAR above this value in some cases.
|
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# eg: set the memory limit to 5 MB, write 2 blocks of 4MB, mem usage will
|
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# have spiked to 8MB before the data is rolled to disk after the
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# second write completes.
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memorylimit = 1024*1024*100
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# enable/disable debug logging
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do_log = False
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# re-defined only for debug/logging purposes
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def gotLength(self, length):
|
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if self.do_log:
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print '%f Headers received, Content-Length: %d' % (time.time(), length)
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server.Request.gotLength(self, length)
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|
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# re-definition of twisted.web.server.Request.requestreceived, the only difference
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# is that self.parse_multipart() is used rather than cgi.parse_multipart()
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def requestReceived(self, command, path, version):
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from twisted.web.http import parse_qs
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if self.do_log:
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print '%f Request Received' % time.time()
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self.content.seek(0,0)
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self.args = {}
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self.stack = []
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self.method, self.uri = command, path
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self.clientproto = version
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x = self.uri.split(b'?', 1)
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|
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if len(x) == 1:
|
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self.path = self.uri
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else:
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self.path, argstring = x
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self.args = parse_qs(argstring, 1)
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|
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# cache the client and server information, we'll need this later to be
|
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# serialized and sent with the request so CGIs will work remotely
|
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self.client = self.channel.transport.getPeer()
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self.host = self.channel.transport.getHost()
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|
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# Argument processing
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args = self.args
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ctype = self.requestHeaders.getRawHeaders(b'content-type')
|
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if ctype is not None:
|
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ctype = ctype[0]
|
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|
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if self.method == b"POST" and ctype:
|
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mfd = b'multipart/form-data'
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key, pdict = cgi.parse_header(ctype)
|
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if key == b'application/x-www-form-urlencoded':
|
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args.update(parse_qs(self.content.read(), 1))
|
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elif key == mfd:
|
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try:
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self.content.seek(0,0)
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args.update(self.parse_multipart(self.content, pdict))
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#args.update(cgi.parse_multipart(self.content, pdict))
|
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|
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except KeyError as e:
|
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if e.args[0] == b'content-disposition':
|
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# Parse_multipart can't cope with missing
|
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# content-dispostion headers in multipart/form-data
|
||||
# parts, so we catch the exception and tell the client
|
||||
# it was a bad request.
|
||||
self.channel.transport.write(
|
||||
b"HTTP/1.1 400 Bad Request\r\n\r\n")
|
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self.channel.transport.loseConnection()
|
||||
return
|
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raise
|
||||
|
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self.content.seek(0, 0)
|
||||
|
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self.process()
|
||||
|
||||
# re-definition of cgi.parse_multipart that uses a single temporary file to store
|
||||
# data rather than storing 2 to 3 copies in various lists.
|
||||
def parse_multipart(self, fp, pdict):
|
||||
if self.do_log:
|
||||
print '%f Parsing Multipart data: ' % time.time()
|
||||
rewind = fp.tell() #save cursor
|
||||
fp.seek(0,0) #reset cursor
|
||||
|
||||
boundary = ""
|
||||
if 'boundary' in pdict:
|
||||
boundary = pdict['boundary']
|
||||
if not cgi.valid_boundary(boundary):
|
||||
raise ValueError, ('Invalid boundary in multipart form: %r'
|
||||
% (boundary,))
|
||||
|
||||
nextpart = "--" + boundary
|
||||
lastpart = "--" + boundary + "--"
|
||||
partdict = {}
|
||||
terminator = ""
|
||||
|
||||
while terminator != lastpart:
|
||||
c_bytes = -1
|
||||
|
||||
data = tempfile.NamedTemporaryFile(delete=False)
|
||||
if terminator:
|
||||
# At start of next part. Read headers first.
|
||||
headers = mimetools.Message(fp)
|
||||
clength = headers.getheader('content-length')
|
||||
if clength:
|
||||
try:
|
||||
c_bytes = int(clength)
|
||||
except ValueError:
|
||||
pass
|
||||
if c_bytes > 0:
|
||||
data.write(fp.read(c_bytes))
|
||||
# Read lines until end of part.
|
||||
while 1:
|
||||
line = fp.readline()
|
||||
if not line:
|
||||
terminator = lastpart # End outer loop
|
||||
break
|
||||
if line[:2] == "--":
|
||||
terminator = line.strip()
|
||||
if terminator in (nextpart, lastpart):
|
||||
break
|
||||
data.write(line)
|
||||
# Done with part.
|
||||
if data.tell() == 0:
|
||||
continue
|
||||
if c_bytes < 0:
|
||||
# if a Content-Length header was not supplied with the MIME part
|
||||
# then the trailing line break must be removed.
|
||||
# we have data, read the last 2 bytes
|
||||
rewind = min(2, data.tell())
|
||||
data.seek(-rewind, os.SEEK_END)
|
||||
line = data.read(2)
|
||||
if line[-2:] == "\r\n":
|
||||
data.seek(-2, os.SEEK_END)
|
||||
data.truncate()
|
||||
elif line[-1:] == "\n":
|
||||
data.seek(-1, os.SEEK_END)
|
||||
data.truncate()
|
||||
|
||||
line = headers['content-disposition']
|
||||
if not line:
|
||||
continue
|
||||
key, params = cgi.parse_header(line)
|
||||
if key != 'form-data':
|
||||
continue
|
||||
if 'name' in params:
|
||||
name = params['name']
|
||||
# kludge in the filename
|
||||
if 'filename' in params:
|
||||
fname_index = name + '_filename'
|
||||
if fname_index in partdict:
|
||||
partdict[fname_index].append(params['filename'])
|
||||
else:
|
||||
partdict[fname_index] = [params['filename']]
|
||||
else:
|
||||
# Unnamed parts are not returned at all.
|
||||
continue
|
||||
data.seek(0,0)
|
||||
if name in partdict:
|
||||
partdict[name].append(data)
|
||||
else:
|
||||
partdict[name] = [data]
|
||||
|
||||
fp.seek(rewind) # Restore cursor
|
||||
return partdict
|
||||
|
||||
class LBRYindex(resource.Resource):
|
||||
def __init__(self, ui_dir):
|
||||
resource.Resource.__init__(self)
|
||||
self.ui_dir = ui_dir
|
||||
|
||||
isLeaf = False
|
||||
|
||||
def _delayed_render(self, request, results):
|
||||
request.write(str(results))
|
||||
request.finish()
|
||||
|
||||
def getChild(self, name, request):
|
||||
if name == '':
|
||||
return self
|
||||
return resource.Resource.getChild(self, name, request)
|
||||
|
||||
def render_GET(self, request):
|
||||
request.setHeader('cache-control','no-cache, no-store, must-revalidate')
|
||||
request.setHeader('expires', '0')
|
||||
return static.File(os.path.join(self.ui_dir, "index.html")).render_GET(request)
|
||||
|
||||
|
||||
@implementer(interfaces.IPushProducer)
|
||||
class EncryptedFileStreamer(object):
|
||||
"""
|
||||
Writes LBRY stream to request; will pause to wait for new data if the file
|
||||
is downloading.
|
||||
|
||||
No support for range requests (some browser players can't handle it when
|
||||
the full video data isn't available on request).
|
||||
"""
|
||||
|
||||
bufferSize = abstract.FileDescriptor.bufferSize
|
||||
|
||||
|
||||
# How long to wait between sending blocks (needed because some
|
||||
# video players freeze up if you try to send data too fast)
|
||||
stream_interval = 0.005
|
||||
|
||||
# How long to wait before checking if new data has been appended to the file
|
||||
new_data_check_interval = 0.25
|
||||
|
||||
|
||||
def __init__(self, request, path, stream, file_manager):
|
||||
def _set_content_length_header(length):
|
||||
self._request.setHeader('content-length', length)
|
||||
return defer.succeed(None)
|
||||
|
||||
self._request = request
|
||||
self._file = open(path, 'rb')
|
||||
self._stream = stream
|
||||
self._file_manager = file_manager
|
||||
self._headers_sent = False
|
||||
|
||||
self._running = True
|
||||
|
||||
self._request.setResponseCode(200)
|
||||
self._request.setHeader('accept-ranges', 'none')
|
||||
self._request.setHeader('content-type', mimetypes.guess_type(path)[0])
|
||||
self._request.setHeader("Content-Security-Policy", "sandbox")
|
||||
|
||||
self._deferred = stream.get_total_bytes()
|
||||
self._deferred.addCallback(_set_content_length_header)
|
||||
self._deferred.addCallback(lambda _: self.resumeProducing())
|
||||
|
||||
def _check_for_new_data(self):
|
||||
def _recurse_or_stop(stream_status):
|
||||
if not self._running:
|
||||
return
|
||||
|
||||
if stream_status != ManagedEncryptedFileDownloader.STATUS_FINISHED:
|
||||
self._deferred.addCallback(lambda _: task.deferLater(reactor, self.new_data_check_interval, self._check_for_new_data))
|
||||
else:
|
||||
self.stopProducing()
|
||||
|
||||
if not self._running:
|
||||
return
|
||||
|
||||
# Clear the file's EOF indicator by seeking to current position
|
||||
self._file.seek(self._file.tell())
|
||||
|
||||
data = self._file.read(self.bufferSize)
|
||||
if data:
|
||||
self._request.write(data)
|
||||
if self._running: # .write() can trigger a pause
|
||||
self._deferred.addCallback(lambda _: task.deferLater(reactor, self.stream_interval, self._check_for_new_data))
|
||||
else:
|
||||
self._deferred.addCallback(lambda _: self._file_manager.get_lbry_file_status(self._stream))
|
||||
self._deferred.addCallback(_recurse_or_stop)
|
||||
|
||||
def pauseProducing(self):
|
||||
self._running = False
|
||||
|
||||
def resumeProducing(self):
|
||||
self._running = True
|
||||
self._check_for_new_data()
|
||||
|
||||
def stopProducing(self):
|
||||
self._running = False
|
||||
self._file.close()
|
||||
self._deferred.addErrback(lambda err: err.trap(defer.CancelledError))
|
||||
self._deferred.addErrback(lambda err: err.trap(error.ConnectionDone))
|
||||
self._deferred.cancel()
|
||||
self._request.unregisterProducer()
|
||||
self._request.finish()
|
||||
|
||||
|
||||
class HostedEncryptedFile(resource.Resource):
|
||||
def __init__(self, api):
|
||||
self._api = api
|
||||
resource.Resource.__init__(self)
|
||||
|
||||
def _make_stream_producer(self, request, stream):
|
||||
path = os.path.join(self._api.download_directory, stream.file_name)
|
||||
|
||||
producer = EncryptedFileStreamer(request, path, stream, self._api.lbry_file_manager)
|
||||
request.registerProducer(producer, streaming=True)
|
||||
|
||||
d = request.notifyFinish()
|
||||
d.addErrback(self._responseFailed, d)
|
||||
return d
|
||||
|
||||
def render_GET(self, request):
|
||||
request.setHeader("Content-Security-Policy", "sandbox")
|
||||
if 'name' in request.args.keys():
|
||||
if request.args['name'][0] != 'lbry' and request.args['name'][0] not in self._api.waiting_on.keys():
|
||||
d = self._api._download_name(request.args['name'][0])
|
||||
d.addCallback(lambda stream: self._make_stream_producer(request, stream))
|
||||
elif request.args['name'][0] in self._api.waiting_on.keys():
|
||||
request.redirect(UI_ADDRESS + "/?watch=" + request.args['name'][0])
|
||||
request.finish()
|
||||
else:
|
||||
request.redirect(UI_ADDRESS)
|
||||
request.finish()
|
||||
return server.NOT_DONE_YET
|
||||
|
||||
def _responseFailed(self, err, call):
|
||||
call.addErrback(lambda err: err.trap(error.ConnectionDone))
|
||||
call.addErrback(lambda err: err.trap(defer.CancelledError))
|
||||
call.addErrback(lambda err: log.info("Error: " + str(err)))
|
||||
call.cancel()
|
||||
|
||||
class EncryptedFileUpload(resource.Resource):
|
||||
"""
|
||||
Accepts a file sent via the file upload widget in the web UI, saves
|
||||
it into a temporary dir, and responds with a JSON string containing
|
||||
the path of the newly created file.
|
||||
"""
|
||||
|
||||
def __init__(self, api):
|
||||
self._api = api
|
||||
|
||||
def render_POST(self, request):
|
||||
origfilename = request.args['file_filename'][0]
|
||||
uploaded_file = request.args['file'][0] # Temp file created by request
|
||||
|
||||
# Move to a new temporary dir and restore the original file name
|
||||
newdirpath = tempfile.mkdtemp()
|
||||
newpath = os.path.join(newdirpath, origfilename)
|
||||
if os.name == "nt":
|
||||
shutil.copy(uploaded_file.name, newpath)
|
||||
# TODO Still need to remove the file
|
||||
|
||||
# TODO deal with pylint error in cleaner fashion than this
|
||||
try:
|
||||
from exceptions import WindowsError as win_except
|
||||
except ImportError as e:
|
||||
log.error("This shouldn't happen")
|
||||
win_except = Exception
|
||||
|
||||
try:
|
||||
os.remove(uploaded_file.name)
|
||||
except win_except as e:
|
||||
pass
|
||||
else:
|
||||
shutil.move(uploaded_file.name, newpath)
|
||||
self._api.uploaded_temp_files.append(newpath)
|
||||
|
||||
return json.dumps(newpath)
|
||||
|
||||
|
||||
class DaemonServer(object):
|
||||
def _setup_server(self, wallet):
|
||||
self.root = LBRYindex(os.path.join(os.path.join(data_dir, "lbry-ui"), "active"))
|
||||
|
|
|
|||
104
lbrynet/lbrynet_daemon/FileStreamer.py
Normal file
104
lbrynet/lbrynet_daemon/FileStreamer.py
Normal file
|
|
@ -0,0 +1,104 @@
|
|||
import logging
|
||||
import os
|
||||
import sys
|
||||
import mimetypes
|
||||
|
||||
from appdirs import user_data_dir
|
||||
from zope.interface import implements
|
||||
from twisted.internet import defer, error, interfaces, abstract, task, reactor
|
||||
|
||||
|
||||
# TODO: omg, this code is essentially duplicated in Daemon
|
||||
if sys.platform != "darwin":
|
||||
data_dir = os.path.join(os.path.expanduser("~"), ".lbrynet")
|
||||
else:
|
||||
data_dir = user_data_dir("LBRY")
|
||||
if not os.path.isdir(data_dir):
|
||||
os.mkdir(data_dir)
|
||||
|
||||
log = logging.getLogger(__name__)
|
||||
STATUS_FINISHED = 'finished'
|
||||
|
||||
class EncryptedFileStreamer(object):
|
||||
"""
|
||||
Writes LBRY stream to request; will pause to wait for new data if the file
|
||||
is downloading.
|
||||
|
||||
No support for range requests (some browser players can't handle it when
|
||||
the full video data isn't available on request).
|
||||
"""
|
||||
implements(interfaces.IPushProducer)
|
||||
|
||||
bufferSize = abstract.FileDescriptor.bufferSize
|
||||
|
||||
|
||||
# How long to wait between sending blocks (needed because some
|
||||
# video players freeze up if you try to send data too fast)
|
||||
stream_interval = 0.005
|
||||
|
||||
# How long to wait before checking if new data has been appended to the file
|
||||
new_data_check_interval = 0.25
|
||||
|
||||
|
||||
def __init__(self, request, path, stream, file_manager):
|
||||
def _set_content_length_header(length):
|
||||
self._request.setHeader('content-length', length)
|
||||
return defer.succeed(None)
|
||||
|
||||
self._request = request
|
||||
self._file = open(path, 'rb')
|
||||
self._stream = stream
|
||||
self._file_manager = file_manager
|
||||
self._headers_sent = False
|
||||
|
||||
self._running = True
|
||||
|
||||
self._request.setResponseCode(200)
|
||||
self._request.setHeader('accept-ranges', 'none')
|
||||
self._request.setHeader('content-type', mimetypes.guess_type(path)[0])
|
||||
self._request.setHeader("Content-Security-Policy", "sandbox")
|
||||
|
||||
self._deferred = stream.get_total_bytes()
|
||||
self._deferred.addCallback(_set_content_length_header)
|
||||
self._deferred.addCallback(lambda _: self.resumeProducing())
|
||||
|
||||
def _check_for_new_data(self):
|
||||
def _recurse_or_stop(stream_status):
|
||||
if not self._running:
|
||||
return
|
||||
|
||||
if stream_status != STATUS_FINISHED:
|
||||
self._deferred.addCallback(lambda _: task.deferLater(reactor, self.new_data_check_interval, self._check_for_new_data))
|
||||
else:
|
||||
self.stopProducing()
|
||||
|
||||
if not self._running:
|
||||
return
|
||||
|
||||
# Clear the file's EOF indicator by seeking to current position
|
||||
self._file.seek(self._file.tell())
|
||||
|
||||
data = self._file.read(self.bufferSize)
|
||||
if data:
|
||||
self._request.write(data)
|
||||
if self._running: # .write() can trigger a pause
|
||||
self._deferred.addCallback(lambda _: task.deferLater(reactor, self.stream_interval, self._check_for_new_data))
|
||||
else:
|
||||
self._deferred.addCallback(lambda _: self._file_manager.get_lbry_file_status(self._stream))
|
||||
self._deferred.addCallback(_recurse_or_stop)
|
||||
|
||||
def pauseProducing(self):
|
||||
self._running = False
|
||||
|
||||
def resumeProducing(self):
|
||||
self._running = True
|
||||
self._check_for_new_data()
|
||||
|
||||
def stopProducing(self):
|
||||
self._running = False
|
||||
self._file.close()
|
||||
self._deferred.addErrback(lambda err: err.trap(defer.CancelledError))
|
||||
self._deferred.addErrback(lambda err: err.trap(error.ConnectionDone))
|
||||
self._deferred.cancel()
|
||||
self._request.unregisterProducer()
|
||||
self._request.finish()
|
||||
133
lbrynet/lbrynet_daemon/Resources.py
Normal file
133
lbrynet/lbrynet_daemon/Resources.py
Normal file
|
|
@ -0,0 +1,133 @@
|
|||
import logging
|
||||
import os
|
||||
import shutil
|
||||
import json
|
||||
import sys
|
||||
import tempfile
|
||||
|
||||
|
||||
from appdirs import user_data_dir
|
||||
from twisted.web import server, static, resource
|
||||
from twisted.internet import defer, error
|
||||
|
||||
from lbrynet.conf import UI_ADDRESS
|
||||
from lbrynet.lbrynet_daemon.FileStreamer import EncryptedFileStreamer
|
||||
|
||||
# TODO: omg, this code is essentially duplicated in Daemon
|
||||
|
||||
if sys.platform != "darwin":
|
||||
data_dir = os.path.join(os.path.expanduser("~"), ".lbrynet")
|
||||
else:
|
||||
data_dir = user_data_dir("LBRY")
|
||||
if not os.path.isdir(data_dir):
|
||||
os.mkdir(data_dir)
|
||||
|
||||
log = logging.getLogger(__name__)
|
||||
|
||||
|
||||
class NoCacheStaticFile(static.File):
|
||||
def _set_no_cache(self, request):
|
||||
request.setHeader('cache-control', 'no-cache, no-store, must-revalidate')
|
||||
request.setHeader('expires', '0')
|
||||
|
||||
def render_GET(self, request):
|
||||
self._set_no_cache(request)
|
||||
return static.File.render_GET(self, request)
|
||||
|
||||
|
||||
class LBRYindex(resource.Resource):
|
||||
def __init__(self, ui_dir):
|
||||
resource.Resource.__init__(self)
|
||||
self.ui_dir = ui_dir
|
||||
|
||||
isLeaf = False
|
||||
|
||||
def _delayed_render(self, request, results):
|
||||
request.write(str(results))
|
||||
request.finish()
|
||||
|
||||
def getChild(self, name, request):
|
||||
request.setHeader('cache-control', 'no-cache, no-store, must-revalidate')
|
||||
request.setHeader('expires', '0')
|
||||
|
||||
if name == '':
|
||||
return self
|
||||
return resource.Resource.getChild(self, name, request)
|
||||
|
||||
def render_GET(self, request):
|
||||
return NoCacheStaticFile(os.path.join(self.ui_dir, "index.html")).render_GET(request)
|
||||
|
||||
|
||||
class HostedEncryptedFile(resource.Resource):
|
||||
def __init__(self, api):
|
||||
self._api = api
|
||||
resource.Resource.__init__(self)
|
||||
|
||||
def _make_stream_producer(self, request, stream):
|
||||
path = os.path.join(self._api.download_directory, stream.file_name)
|
||||
|
||||
producer = EncryptedFileStreamer(request, path, stream, self._api.lbry_file_manager)
|
||||
request.registerProducer(producer, streaming=True)
|
||||
|
||||
d = request.notifyFinish()
|
||||
d.addErrback(self._responseFailed, d)
|
||||
return d
|
||||
|
||||
def render_GET(self, request):
|
||||
request.setHeader("Content-Security-Policy", "sandbox")
|
||||
if 'name' in request.args.keys():
|
||||
if request.args['name'][0] != 'lbry' and request.args['name'][0] not in self._api.waiting_on.keys():
|
||||
d = self._api._download_name(request.args['name'][0])
|
||||
d.addCallback(lambda stream: self._make_stream_producer(request, stream))
|
||||
elif request.args['name'][0] in self._api.waiting_on.keys():
|
||||
request.redirect(UI_ADDRESS + "/?watch=" + request.args['name'][0])
|
||||
request.finish()
|
||||
else:
|
||||
request.redirect(UI_ADDRESS)
|
||||
request.finish()
|
||||
return server.NOT_DONE_YET
|
||||
|
||||
def _responseFailed(self, err, call):
|
||||
call.addErrback(lambda err: err.trap(error.ConnectionDone))
|
||||
call.addErrback(lambda err: err.trap(defer.CancelledError))
|
||||
call.addErrback(lambda err: log.info("Error: " + str(err)))
|
||||
call.cancel()
|
||||
|
||||
|
||||
class EncryptedFileUpload(resource.Resource):
|
||||
"""
|
||||
Accepts a file sent via the file upload widget in the web UI, saves
|
||||
it into a temporary dir, and responds with a JSON string containing
|
||||
the path of the newly created file.
|
||||
"""
|
||||
|
||||
def __init__(self, api):
|
||||
self._api = api
|
||||
|
||||
def render_POST(self, request):
|
||||
origfilename = request.args['file_filename'][0]
|
||||
uploaded_file = request.args['file'][0] # Temp file created by request
|
||||
|
||||
# Move to a new temporary dir and restore the original file name
|
||||
newdirpath = tempfile.mkdtemp()
|
||||
newpath = os.path.join(newdirpath, origfilename)
|
||||
if os.name == "nt":
|
||||
shutil.copy(uploaded_file.name, newpath)
|
||||
# TODO Still need to remove the file
|
||||
|
||||
# TODO deal with pylint error in cleaner fashion than this
|
||||
try:
|
||||
from exceptions import WindowsError as win_except
|
||||
except ImportError as e:
|
||||
log.error("This shouldn't happen")
|
||||
win_except = Exception
|
||||
|
||||
try:
|
||||
os.remove(uploaded_file.name)
|
||||
except win_except as e:
|
||||
pass
|
||||
else:
|
||||
shutil.move(uploaded_file.name, newpath)
|
||||
self._api.uploaded_temp_files.append(newpath)
|
||||
|
||||
return json.dumps(newpath)
|
||||
|
|
@ -6,10 +6,10 @@ import json
|
|||
|
||||
from urllib2 import urlopen
|
||||
from StringIO import StringIO
|
||||
from twisted.web import static
|
||||
from twisted.internet import defer
|
||||
from twisted.internet.task import LoopingCall
|
||||
from lbrynet.conf import DEFAULT_UI_BRANCH, LOG_FILE_NAME
|
||||
from lbrynet.lbrynet_daemon.Resources import NoCacheStaticFile
|
||||
from lbrynet import __version__ as lbrynet_version
|
||||
from lbryum.version import LBRYUM_VERSION as lbryum_version
|
||||
from zipfile import ZipFile
|
||||
|
|
@ -235,5 +235,5 @@ class UIManager(object):
|
|||
|
||||
def _load_ui(self):
|
||||
for d in [i[0] for i in os.walk(self.active_dir) if os.path.dirname(i[0]) == self.active_dir]:
|
||||
self.root.putChild(os.path.basename(d), static.File(d))
|
||||
self.root.putChild(os.path.basename(d), NoCacheStaticFile(d))
|
||||
return defer.succeed(True)
|
||||
|
|
|
|||
Loading…
Reference in a new issue