mirror of
https://github.com/tahoe-lafs/tahoe-lafs.git
synced 2024-12-28 08:48:53 +00:00
361 lines
14 KiB
Python
361 lines
14 KiB
Python
import time
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from twisted.internet import address
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from twisted.web import http
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from nevow import rend, url, loaders, tags as T
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from nevow.inevow import IRequest
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from nevow.static import File as nevow_File # TODO: merge with static.File?
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from nevow.util import resource_filename
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from formless import webform
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import allmydata # to display import path
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from allmydata import get_package_versions_string
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from allmydata import provisioning
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from allmydata.util import idlib, log
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from allmydata.interfaces import IFileNode
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from allmydata.web import filenode, directory, unlinked, status, operations
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from allmydata.web import reliability, storage
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from allmydata.web.common import abbreviate_size, getxmlfile, WebError, \
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get_arg, RenderMixin, boolean_of_arg
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class URIHandler(RenderMixin, rend.Page):
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# I live at /uri . There are several operations defined on /uri itself,
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# mostly involved with creation of unlinked files and directories.
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def __init__(self, client):
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rend.Page.__init__(self, client)
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self.client = client
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def render_GET(self, ctx):
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req = IRequest(ctx)
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uri = get_arg(req, "uri", None)
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if uri is None:
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raise WebError("GET /uri requires uri=")
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there = url.URL.fromContext(ctx)
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there = there.clear("uri")
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# I thought about escaping the childcap that we attach to the URL
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# here, but it seems that nevow does that for us.
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there = there.child(uri)
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return there
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def render_PUT(self, ctx):
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req = IRequest(ctx)
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# either "PUT /uri" to create an unlinked file, or
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# "PUT /uri?t=mkdir" to create an unlinked directory
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t = get_arg(req, "t", "").strip()
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if t == "":
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mutable = boolean_of_arg(get_arg(req, "mutable", "false").strip())
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if mutable:
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return unlinked.PUTUnlinkedSSK(req, self.client)
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else:
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return unlinked.PUTUnlinkedCHK(req, self.client)
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if t == "mkdir":
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return unlinked.PUTUnlinkedCreateDirectory(req, self.client)
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errmsg = ("/uri accepts only PUT, PUT?t=mkdir, POST?t=upload, "
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"and POST?t=mkdir")
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raise WebError(errmsg, http.BAD_REQUEST)
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def render_POST(self, ctx):
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# "POST /uri?t=upload&file=newfile" to upload an
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# unlinked file or "POST /uri?t=mkdir" to create a
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# new directory
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req = IRequest(ctx)
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t = get_arg(req, "t", "").strip()
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if t in ("", "upload"):
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mutable = bool(get_arg(req, "mutable", "").strip())
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if mutable:
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return unlinked.POSTUnlinkedSSK(req, self.client)
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else:
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return unlinked.POSTUnlinkedCHK(req, self.client)
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if t == "mkdir":
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return unlinked.POSTUnlinkedCreateDirectory(req, self.client)
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elif t == "mkdir-with-children":
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return unlinked.POSTUnlinkedCreateDirectoryWithChildren(req,
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self.client)
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elif t == "mkdir-immutable":
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return unlinked.POSTUnlinkedCreateImmutableDirectory(req,
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self.client)
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errmsg = ("/uri accepts only PUT, PUT?t=mkdir, POST?t=upload, "
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"and POST?t=mkdir")
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raise WebError(errmsg, http.BAD_REQUEST)
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def childFactory(self, ctx, name):
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# 'name' is expected to be a URI
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try:
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node = self.client.create_node_from_uri(name)
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return directory.make_handler_for(node, self.client)
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except (TypeError, AssertionError):
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raise WebError("'%s' is not a valid file- or directory- cap"
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% name)
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class FileHandler(rend.Page):
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# I handle /file/$FILECAP[/IGNORED] , which provides a URL from which a
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# file can be downloaded correctly by tools like "wget".
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def __init__(self, client):
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rend.Page.__init__(self, client)
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self.client = client
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def childFactory(self, ctx, name):
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req = IRequest(ctx)
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if req.method not in ("GET", "HEAD"):
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raise WebError("/file can only be used with GET or HEAD")
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# 'name' must be a file URI
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try:
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node = self.client.create_node_from_uri(name)
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except (TypeError, AssertionError):
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# I think this can no longer be reached
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raise WebError("'%s' is not a valid file- or directory- cap"
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% name)
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if not IFileNode.providedBy(node):
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raise WebError("'%s' is not a file-cap" % name)
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return filenode.FileNodeDownloadHandler(self.client, node)
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def renderHTTP(self, ctx):
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raise WebError("/file must be followed by a file-cap and a name",
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http.NOT_FOUND)
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class IncidentReporter(RenderMixin, rend.Page):
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def render_POST(self, ctx):
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req = IRequest(ctx)
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log.msg(format="User reports incident through web page: %(details)s",
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details=get_arg(req, "details", ""),
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level=log.WEIRD, umid="LkD9Pw")
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req.setHeader("content-type", "text/plain")
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return "Thank you for your report!"
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class NoReliability(rend.Page):
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docFactory = loaders.xmlstr('''\
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<html xmlns:n="http://nevow.com/ns/nevow/0.1">
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<head>
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<title>AllMyData - Tahoe</title>
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<link href="/webform_css" rel="stylesheet" type="text/css"/>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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</head>
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<body>
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<h2>"Reliability" page not available</h2>
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<p>Please install the python "NumPy" module to enable this page.</p>
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</body>
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</html>
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''')
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class Root(rend.Page):
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addSlash = True
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docFactory = getxmlfile("welcome.xhtml")
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def __init__(self, client, clock=None):
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rend.Page.__init__(self, client)
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self.client = client
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# If set, clock is a twisted.internet.task.Clock that the tests
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# use to test ophandle expiration.
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self.child_operations = operations.OphandleTable(clock)
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try:
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s = client.getServiceNamed("storage")
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except KeyError:
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s = None
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self.child_storage = storage.StorageStatus(s)
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self.child_uri = URIHandler(client)
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self.child_cap = URIHandler(client)
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self.child_file = FileHandler(client)
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self.child_named = FileHandler(client)
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self.child_status = status.Status(client.get_history())
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self.child_statistics = status.Statistics(client.stats_provider)
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def f(name):
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return nevow_File(resource_filename('allmydata.web', name))
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self.putChild("download_status_timeline.js", f("download_status_timeline.js"))
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self.putChild("jquery-1.6.1.min.js", f("jquery-1.6.1.min.js"))
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self.putChild("protovis-3.3.1.min.js", f("protovis-3.3.1.min.js"))
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def child_helper_status(self, ctx):
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# the Helper isn't attached until after the Tub starts, so this child
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# needs to created on each request
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return status.HelperStatus(self.client.helper)
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child_webform_css = webform.defaultCSS
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child_tahoe_css = nevow_File(resource_filename('allmydata.web', 'tahoe.css'))
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child_provisioning = provisioning.ProvisioningTool()
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if reliability.is_available():
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child_reliability = reliability.ReliabilityTool()
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else:
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child_reliability = NoReliability()
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child_report_incident = IncidentReporter()
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#child_server # let's reserve this for storage-server-over-HTTP
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# FIXME: This code is duplicated in root.py and introweb.py.
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def data_version(self, ctx, data):
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return get_package_versions_string()
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def data_import_path(self, ctx, data):
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return str(allmydata)
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def data_my_nodeid(self, ctx, data):
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return idlib.nodeid_b2a(self.client.nodeid)
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def data_my_nickname(self, ctx, data):
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return self.client.nickname
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def render_services(self, ctx, data):
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ul = T.ul()
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try:
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ss = self.client.getServiceNamed("storage")
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stats = ss.get_stats()
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if stats["storage_server.accepting_immutable_shares"]:
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msg = "accepting new shares"
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else:
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msg = "not accepting new shares (read-only)"
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available = stats.get("storage_server.disk_avail")
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if available is not None:
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msg += ", %s available" % abbreviate_size(available)
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ul[T.li[T.a(href="storage")["Storage Server"], ": ", msg]]
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except KeyError:
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ul[T.li["Not running storage server"]]
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if self.client.helper:
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stats = self.client.helper.get_stats()
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active_uploads = stats["chk_upload_helper.active_uploads"]
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ul[T.li["Helper: %d active uploads" % (active_uploads,)]]
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else:
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ul[T.li["Not running helper"]]
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return ctx.tag[ul]
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def data_introducer_furl(self, ctx, data):
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return self.client.introducer_furl
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def data_connected_to_introducer(self, ctx, data):
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if self.client.connected_to_introducer():
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return "yes"
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return "no"
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def data_helper_furl(self, ctx, data):
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try:
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uploader = self.client.getServiceNamed("uploader")
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except KeyError:
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return None
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furl, connected = uploader.get_helper_info()
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return furl
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def data_connected_to_helper(self, ctx, data):
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try:
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uploader = self.client.getServiceNamed("uploader")
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except KeyError:
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return "no" # we don't even have an Uploader
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furl, connected = uploader.get_helper_info()
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if connected:
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return "yes"
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return "no"
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def data_known_storage_servers(self, ctx, data):
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sb = self.client.get_storage_broker()
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return len(sb.get_all_serverids())
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def data_connected_storage_servers(self, ctx, data):
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sb = self.client.get_storage_broker()
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return len(sb.get_connected_servers())
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def data_services(self, ctx, data):
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sb = self.client.get_storage_broker()
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return sorted(sb.get_known_servers(), key=lambda s: s.get_serverid())
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def render_service_row(self, ctx, server):
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nodeid = server.get_serverid()
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ctx.fillSlots("peerid", server.get_longname())
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ctx.fillSlots("nickname", server.get_nickname())
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rhost = server.get_remote_host()
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if rhost:
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if nodeid == self.client.nodeid:
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rhost_s = "(loopback)"
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elif isinstance(rhost, address.IPv4Address):
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rhost_s = "%s:%d" % (rhost.host, rhost.port)
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else:
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rhost_s = str(rhost)
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connected = "Yes: to " + rhost_s
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since = server.get_last_connect_time()
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else:
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connected = "No"
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since = server.get_last_loss_time()
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announced = server.get_announcement_time()
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announcement = server.get_announcement()
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version = announcement["my-version"]
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service_name = announcement["service-name"]
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TIME_FORMAT = "%H:%M:%S %d-%b-%Y"
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ctx.fillSlots("connected", connected)
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ctx.fillSlots("connected-bool", bool(rhost))
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ctx.fillSlots("since", time.strftime(TIME_FORMAT,
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time.localtime(since)))
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ctx.fillSlots("announced", time.strftime(TIME_FORMAT,
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time.localtime(announced)))
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ctx.fillSlots("version", version)
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ctx.fillSlots("service_name", service_name)
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return ctx.tag
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def render_download_form(self, ctx, data):
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# this is a form where users can download files by URI
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form = T.form(action="uri", method="get",
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enctype="multipart/form-data")[
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T.fieldset[
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T.legend(class_="freeform-form-label")["Download a file"],
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T.div["Tahoe-URI to download: ",
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T.input(type="text", name="uri")],
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T.div["Filename to download as: ",
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T.input(type="text", name="filename")],
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T.input(type="submit", value="Download!"),
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]]
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return T.div[form]
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def render_view_form(self, ctx, data):
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# this is a form where users can download files by URI, or jump to a
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# named directory
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form = T.form(action="uri", method="get",
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enctype="multipart/form-data")[
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T.fieldset[
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T.legend(class_="freeform-form-label")["View a file or directory"],
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"Tahoe-URI to view: ",
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T.input(type="text", name="uri"), " ",
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T.input(type="submit", value="View!"),
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]]
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return T.div[form]
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def render_upload_form(self, ctx, data):
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# this is a form where users can upload unlinked files
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form = T.form(action="uri", method="post",
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enctype="multipart/form-data")[
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T.fieldset[
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T.legend(class_="freeform-form-label")["Upload a file"],
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T.div["Choose a file: ",
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T.input(type="file", name="file", class_="freeform-input-file")],
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T.input(type="hidden", name="t", value="upload"),
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T.div[T.input(type="checkbox", name="mutable"), T.label(for_="mutable")["Create mutable file"],
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" ", T.input(type="submit", value="Upload!")],
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]]
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return T.div[form]
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def render_mkdir_form(self, ctx, data):
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# this is a form where users can create new directories
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form = T.form(action="uri", method="post",
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enctype="multipart/form-data")[
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T.fieldset[
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T.legend(class_="freeform-form-label")["Create a directory"],
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T.input(type="hidden", name="t", value="mkdir"),
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T.input(type="hidden", name="redirect_to_result", value="true"),
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T.input(type="submit", value="Create a directory"),
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]]
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return T.div[form]
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def render_incident_button(self, ctx, data):
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# this button triggers a foolscap-logging "incident"
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form = T.form(action="report_incident", method="post",
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enctype="multipart/form-data")[
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T.fieldset[
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T.legend(class_="freeform-form-label")["Report an Incident"],
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T.input(type="hidden", name="t", value="report-incident"),
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"What went wrong?: ",
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T.input(type="text", name="details"), " ",
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T.input(type="submit", value="Report!"),
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]]
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return T.div[form]
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