tahoe-lafs/allmydata/webish.py

270 lines
9.7 KiB
Python

from twisted.application import service, internet
from twisted.web import static, resource, server
from twisted.python import util, log
from nevow import inevow, rend, loaders, appserver, url, tags as T
from allmydata.util import idlib
from allmydata.download import IDownloadTarget#, IDownloader
from allmydata import upload
from zope.interface import implements, Interface
import urllib
from formless import annotate, webform
def getxmlfile(name):
return loaders.xmlfile(util.sibpath(__file__, "web/%s" % name))
class IClient(Interface):
pass
class WebishServer(service.MultiService):
name = "webish"
WEBPORTFILE = "webport"
def __init__(self, webport):
service.MultiService.__init__(self)
self.root = root = static.Data("root", "text/plain")
w = Welcome()
root.putChild("", w)
root.putChild("vdrive",
static.Data("sorry, still initializing", "text/plain"))
self.site = site = appserver.NevowSite(root)
internet.TCPServer(webport, site).setServiceParent(self)
def startService(self):
service.MultiService.startService(self)
# to make various services available to render_* methods, we stash a
# reference to the client on the NevowSite. This will be available by
# adapting the 'context' argument to a special marker interface named
# IClient.
self.site.remember(self.parent, IClient)
# I thought you could do the same with an existing interface, but
# apparently 'ISite' does not exist
#self.site._client = self.parent
def set_root_dirnode(self, dirnode):
self.root.putChild("vdrive", Directory(dirnode, "/"))
# I tried doing it this way and for some reason it didn't seem to work
#print "REMEMBERING", self.site, dl, IDownloader
#self.site.remember(dl, IDownloader)
class Welcome(rend.Page):
addSlash = True
docFactory = getxmlfile("welcome.xhtml")
def data_queen_pburl(self, ctx, data):
return IClient(ctx).queen_pburl
def data_connected_to_queen(self, ctx, data):
if IClient(ctx).queen:
return "yes"
return "no"
def data_num_peers(self, ctx, data):
#client = inevow.ISite(ctx)._client
client = IClient(ctx)
return len(client.all_peers)
def data_num_connected_peers(self, ctx, data):
return len(IClient(ctx).connections)
def data_peers(self, ctx, data):
return sorted(IClient(ctx).all_peers)
def render_row(self, ctx, data):
if data in IClient(ctx).connections:
connected = "yes"
else:
connected = "no"
ctx.fillSlots("peerid", idlib.b2a(data))
ctx.fillSlots("connected", connected)
return ctx.tag
class Directory(rend.Page):
addSlash = True
docFactory = getxmlfile("directory.xhtml")
def __init__(self, dirnode, dirname):
self._dirnode = dirnode
self._dirname = dirname
def get_service(self, ctx, name):
return IClient(ctx).getServiceNamed(name)
def childFactory(self, ctx, name):
if name.startswith("freeform"): # ick
return None
if name == "_download":
args = inevow.IRequest(ctx).args
filename = args["filename"][0]
verifierid = args["verifierid"][0]
return Downloader(self.get_service(ctx, "downloader"),
self._dirname, filename, idlib.a2b(verifierid))
if self._dirname == "/":
dirname = "/" + name
else:
dirname = self._dirname + "/" + name
d = self._dirnode.callRemote("get", name)
d.addCallback(lambda newnode: Directory(newnode, dirname))
return d
def render_title(self, ctx, data):
return ctx.tag["Directory of '%s':" % self._dirname]
def render_header(self, ctx, data):
return "Directory of '%s':" % self._dirname
def data_children(self, ctx, data):
d = self._dirnode.callRemote("list")
return d
def render_row(self, ctx, data):
name, target = data
if isinstance(target, str):
# file
args = {'verifierid': idlib.b2a(target),
'filename': name,
}
dlurl = "_download?%s" % urllib.urlencode(args)
ctx.fillSlots("filename", T.a(href=dlurl)[name])
ctx.fillSlots("type", "FILE")
ctx.fillSlots("fileid", idlib.b2a(target))
# this creates a button which will cause our child__delete method
# to be invoked, which deletes the file and then redirects the
# browser back to this directory
del_url = url.here.child("_delete")
#del_url = del_url.add("verifierid", idlib.b2a(target))
del_url = del_url.add("name", name)
delete = T.form(action=del_url, method="post")[
T.input(type='submit', value='del', name="del"),
]
ctx.fillSlots("delete", delete)
else:
# directory
ctx.fillSlots("filename", T.a(href=name)[name])
ctx.fillSlots("type", "DIR")
ctx.fillSlots("fileid", "-")
ctx.fillSlots("delete", "-")
return ctx.tag
child_webform_css = webform.defaultCSS
def render_forms(self, ctx, data):
return webform.renderForms()
def bind_upload(self, ctx):
"""upload1"""
# Note: this comment is no longer accurate, as it reflects the older
# (apparently deprecated) formless.autocallable /
# annotate.TypedInterface approach.
# Each method gets a box. The string in the autocallable(action=)
# argument is put on the border of the box, as well as in the submit
# button. The top-most contents of the box are the method's
# docstring, if any. Each row contains a string for the argument
# followed by the argument's input box. If you do not provide an
# action= argument to autocallable, the method name is capitalized
# and used instead.
up = annotate.FileUpload(label="Choose a file to upload: ",
required=True,
requiredFailMessage="Do iT!")
contentsarg = annotate.Argument("contents", up)
ctxarg = annotate.Argument("ctx", annotate.Context())
meth = annotate.Method(arguments=[contentsarg, ctxarg])
return annotate.MethodBinding("upload", meth, action="Upload File")
def upload(self, contents, ctx):
# contents is a cgi.FieldStorage instance
log.msg("starting webish upload")
uploader = self.get_service(ctx, "uploader")
d = uploader.upload(upload.Data(contents.value))
name = contents.filename
d.addCallback(lambda vid:
self._dirnode.callRemote("add_file", name, vid))
def _done(res):
log.msg("webish upload complete")
return res
d.addCallback(_done)
return d
return url.here.add("results",
"upload of '%s' complete!" % contents.filename)
def bind_mkdir(self, ctx):
"""Make new directory 1"""
namearg = annotate.Argument("name",
annotate.String("New directory name: "))
meth = annotate.Method(arguments=[namearg])
return annotate.MethodBinding("mkdir", meth, action="Make Directory")
def mkdir(self, name):
"""mkdir2"""
log.msg("making new webish directory")
d = self._dirnode.callRemote("add_directory", name)
def _done(res):
log.msg("webish mkdir complete")
return res
d.addCallback(_done)
return d
def child__delete(self, ctx):
# perform the delete, then redirect back to the directory page
args = inevow.IRequest(ctx).args
vdrive = self.get_service(ctx, "vdrive")
d = vdrive.remove(self._dirnode, args["name"][0])
def _deleted(res):
return url.here.up()
d.addCallback(_deleted)
return d
class WebDownloadTarget:
implements(IDownloadTarget)
def __init__(self, req):
self._req = req
def open(self):
pass
def write(self, data):
self._req.write(data)
def close(self):
self._req.finish()
def fail(self):
self._req.finish()
def register_canceller(self, cb):
pass
def finish(self):
pass
class TypedFile(static.File):
# serve data from a named file, but using a Content-Type derived from a
# different filename
isLeaf = True
def __init__(self, path, requested_filename):
static.File.__init__(self, path)
gte = static.getTypeAndEncoding
self.type, self.encoding = gte(requested_filename,
self.contentTypes,
self.contentEncodings,
self.defaultType)
class Downloader(resource.Resource):
def __init__(self, downloader, dirname, name, verifierid):
self._downloader = downloader
self._dirname = dirname
self._name = name
self._verifierid = verifierid
def render(self, ctx):
req = inevow.IRequest(ctx)
gte = static.getTypeAndEncoding
type, encoding = gte(self._name,
static.File.contentTypes,
static.File.contentEncodings,
defaultType="text/plain")
req.setHeader("content-type", type)
if encoding:
req.setHeader('content-encoding', encoding)
t = WebDownloadTarget(req)
#dl = IDownloader(ctx)
dl = self._downloader
dl.download(self._verifierid, t)
return server.NOT_DONE_YET