src/allmydata/web/unlinked.py

   1
   2 import urllib
   3 from twisted.web import http
   4 from twisted.internet import defer
   5 from nevow import rend, url, tags as T
   6 from allmydata.immutable.upload import FileHandle
   7 from allmydata.mutable.publish import MutableFileHandle
   8 from allmydata.web.common import getxmlfile, get_arg, boolean_of_arg, \
   9      convert_children_json, WebError, get_format, get_mutable_type
  10 from allmydata.web import status
  11
  12 def PUTUnlinkedCHK(req, client):
  13     # "PUT /uri", to create an unlinked file.
  14     uploadable = FileHandle(req.content, client.convergence)
  15     d = client.upload(uploadable)
  16     d.addCallback(lambda results: results.get_uri())
  17     # that fires with the URI of the new file
  18     return d
  19
  20 def PUTUnlinkedSSK(req, client, version):
  21     # SDMF: files are small, and we can only upload data
  22     req.content.seek(0)
  23     data = MutableFileHandle(req.content)
  24     d = client.create_mutable_file(data, version=version)
  25     d.addCallback(lambda n: n.get_uri())
  26     return d
  27
  28 def PUTUnlinkedCreateDirectory(req, client):
  29     # "PUT /uri?t=mkdir", to create an unlinked directory.
  30     file_format = get_format(req, None)
  31     if file_format == "CHK":
  32         raise WebError("format=CHK not accepted for PUT /uri?t=mkdir",
  33                        http.BAD_REQUEST)
  34     mt = None
  35     if file_format:
  36         mt = get_mutable_type(file_format)
  37     d = client.create_dirnode(version=mt)
  38     d.addCallback(lambda dirnode: dirnode.get_uri())
  39     # XXX add redirect_to_result
  40     return d
  41
  42
  43 def POSTUnlinkedCHK(req, client):
  44     fileobj = req.fields["file"].file
  45     uploadable = FileHandle(fileobj, client.convergence)
  46     d = client.upload(uploadable)
  47     when_done = get_arg(req, "when_done", None)
  48     if when_done:
  49         # if when_done= is provided, return a redirect instead of our
  50         # usual upload-results page
  51         def _done(upload_results, redir_to):
  52             if "%(uri)s" in redir_to:
  53                 redir_to = redir_to % {"uri": urllib.quote(upload_results.get_uri())
  54                                          }
  55             return url.URL.fromString(redir_to)
  56         d.addCallback(_done, when_done)
  57     else:
  58         # return the Upload Results page, which includes the URI
  59         d.addCallback(UploadResultsPage)
  60     return d
  61
  62
  63 class UploadResultsPage(status.UploadResultsRendererMixin, rend.Page):
  64     """'POST /uri', to create an unlinked file."""
  65     docFactory = getxmlfile("upload-results.xhtml")
  66
  67     def __init__(self, upload_results):
  68         rend.Page.__init__(self)
  69         self.results = upload_results
  70
  71     def upload_results(self):
  72         return defer.succeed(self.results)
  73
  74     def data_done(self, ctx, data):
  75         d = self.upload_results()
  76         d.addCallback(lambda res: "done!")
  77         return d
  78
  79     def data_uri(self, ctx, data):
  80         d = self.upload_results()
  81         d.addCallback(lambda res: res.get_uri())
  82         return d
  83
  84     def render_download_link(self, ctx, data):
  85         d = self.upload_results()
  86         d.addCallback(lambda res:
  87                       T.a(href="/uri/" + urllib.quote(res.get_uri()))
  88                       ["/uri/" + res.get_uri()])
  89         return d
  90
  91 def POSTUnlinkedSSK(req, client, version):
  92     # "POST /uri", to create an unlinked file.
  93     # SDMF: files are small, and we can only upload data
  94     contents = req.fields["file"].file
  95     data = MutableFileHandle(contents)
  96     d = client.create_mutable_file(data, version=version)
  97     d.addCallback(lambda n: n.get_uri())
  98     return d
  99
 100 def POSTUnlinkedCreateDirectory(req, client):
 101     # "POST /uri?t=mkdir", to create an unlinked directory.
 102     ct = req.getHeader("content-type") or ""
 103     if not ct.startswith("multipart/form-data"):
 104         # guard against accidental attempts to call t=mkdir as if it were
 105         # t=mkdir-with-children, but make sure we tolerate the usual HTML
 106         # create-directory form (in which the t=mkdir and redirect_to_result=
 107         # and other arguments can be passed encoded as multipath/form-data,
 108         # in the request body).
 109         req.content.seek(0)
 110         kids_json = req.content.read()
 111         if kids_json:
 112             raise WebError("t=mkdir does not accept children=, "
 113                            "try t=mkdir-with-children instead",
 114                            http.BAD_REQUEST)
 115     file_format = get_format(req, None)
 116     if file_format == "CHK":
 117         raise WebError("format=CHK not currently accepted for POST /uri?t=mkdir",
 118                        http.BAD_REQUEST)
 119     mt = None
 120     if file_format:
 121         mt = get_mutable_type(file_format)
 122     d = client.create_dirnode(version=mt)
 123     redirect = get_arg(req, "redirect_to_result", "false")
 124     if boolean_of_arg(redirect):
 125         def _then_redir(res):
 126             new_url = "uri/" + urllib.quote(res.get_uri())
 127             req.setResponseCode(http.SEE_OTHER) # 303
 128             req.setHeader('location', new_url)
 129             req.finish()
 130             return ''
 131         d.addCallback(_then_redir)
 132     else:
 133         d.addCallback(lambda dirnode: dirnode.get_uri())
 134     return d
 135
 136 def POSTUnlinkedCreateDirectoryWithChildren(req, client):
 137     # "POST /uri?t=mkdir", to create an unlinked directory.
 138     req.content.seek(0)
 139     kids_json = req.content.read()
 140     kids = convert_children_json(client.nodemaker, kids_json)
 141     d = client.create_dirnode(initial_children=kids)
 142     redirect = get_arg(req, "redirect_to_result", "false")
 143     if boolean_of_arg(redirect):
 144         def _then_redir(res):
 145             new_url = "uri/" + urllib.quote(res.get_uri())
 146             req.setResponseCode(http.SEE_OTHER) # 303
 147             req.setHeader('location', new_url)
 148             req.finish()
 149             return ''
 150         d.addCallback(_then_redir)
 151     else:
 152         d.addCallback(lambda dirnode: dirnode.get_uri())
 153     return d
 154
 155 def POSTUnlinkedCreateImmutableDirectory(req, client):
 156     # "POST /uri?t=mkdir", to create an unlinked directory.
 157     req.content.seek(0)
 158     kids_json = req.content.read()
 159     kids = convert_children_json(client.nodemaker, kids_json)
 160     d = client.create_immutable_dirnode(kids)
 161     redirect = get_arg(req, "redirect_to_result", "false")
 162     if boolean_of_arg(redirect):
 163         def _then_redir(res):
 164             new_url = "uri/" + urllib.quote(res.get_uri())
 165             req.setResponseCode(http.SEE_OTHER) # 303
 166             req.setHeader('location', new_url)
 167             req.finish()
 168             return ''
 169         d.addCallback(_then_redir)
 170     else:
 171         d.addCallback(lambda dirnode: dirnode.get_uri())
 172     return d