From: Zooko O'Whielacronx Date: Fri, 29 Feb 2008 20:11:18 +0000 (-0700) Subject: test: refactor webist.POSTHandler() to have a method for each "?t=" command X-Git-Tag: allmydata-tahoe-0.9.0~97 X-Git-Url: https://git.rkrishnan.org/pf/content/en/service/rgr-080307.php?a=commitdiff_plain;h=ef46e16aa9dbf2a292e566f3eb2a576c4bb43c1a;p=tahoe-lafs%2Ftahoe-lafs.git test: refactor webist.POSTHandler() to have a method for each "?t=" command Input validation and decoding is still done in the body of POSTHandler.renderHTTP(). --- diff --git a/src/allmydata/webish.py b/src/allmydata/webish.py index 9ef58059..7a8e954f 100644 --- a/src/allmydata/webish.py +++ b/src/allmydata/webish.py @@ -797,6 +797,108 @@ class POSTHandler(rend.Page): d.addCallback(_got) return d + def _POST_mkdir(self, name): + d = self._check_replacement(name) + d.addCallback(lambda res: self._node.create_empty_directory(name)) + d.addCallback(lambda res: "directory created") + return d + + def _POST_uri(self, name, newuri): + d = self._check_replacement(name) + d.addCallback(lambda res: self._node.set_uri(name, newuri)) + d.addCallback(lambda res: newuri) + return d + + def _POST_delete(self, name): + if name is None: + # apparently an + # won't show up in the resulting encoded form.. the 'name' + # field is completely missing. So to allow deletion of an + # empty file, we have to pretend that None means ''. The only + # downide of this is a slightly confusing error message if + # someone does a POST without a name= field. For our own HTML + # thisn't a big deal, because we create the 'delete' POST + # buttons ourselves. + name = '' + d = self._node.delete(name) + d.addCallback(lambda res: "thing deleted") + return d + + def _POST_rename(self, name, from_name, to_name): + d = self._check_replacement(to_name) + d.addCallback(lambda res: self._node.get(from_name)) + def add_dest(child): + uri = child.get_uri() + # now actually do the rename + return self._node.set_uri(to_name, uri) + d.addCallback(add_dest) + def rm_src(junk): + return self._node.delete(from_name) + d.addCallback(rm_src) + d.addCallback(lambda res: "thing renamed") + return d + + def _POST_upload(self, contents, name, mutable, client): + if mutable: + # SDMF: files are small, and we can only upload data. + contents.file.seek(0) + data = contents.file.read() + #uploadable = FileHandle(contents.file) + d = self._check_replacement(name) + d.addCallback(lambda res: self._node.has_child(name)) + def _checked(present): + if present: + # modify the existing one instead of creating a new + # one + d2 = self._node.get(name) + def _got_newnode(newnode): + d3 = newnode.replace(data) + d3.addCallback(lambda res: newnode.get_uri()) + return d3 + d2.addCallback(_got_newnode) + else: + d2 = client.create_mutable_file(data) + def _uploaded(newnode): + d1 = self._node.set_node(name, newnode) + d1.addCallback(lambda res: newnode.get_uri()) + return d1 + d2.addCallback(_uploaded) + return d2 + d.addCallback(_checked) + else: + uploadable = FileHandle(contents.file) + d = self._check_replacement(name) + d.addCallback(lambda res: self._node.add_file(name, uploadable)) + def _done(newnode): + return newnode.get_uri() + d.addCallback(_done) + return d + + def _POST_overwrite(self, contents): + # SDMF: files are small, and we can only upload data. + contents.file.seek(0) + data = contents.file.read() + # TODO: 'name' handling needs review + d = defer.succeed(self._node) + def _got_child_overwrite(child_node): + child_node.replace(data) + return child_node.get_uri() + d.addCallback(_got_child_overwrite) + return d + + def _POST_check(self, name): + d = self._node.get(name) + def _got_child_check(child_node): + d2 = child_node.check() + def _done(res): + log.msg("checked %s, results %s" % (child_node, res), + facility="tahoe.webish", level=log.NOISY) + return str(res) + d2.addCallback(_done) + return d2 + d.addCallback(_got_child_check) + return d + def renderHTTP(self, ctx): req = inevow.IRequest(ctx) @@ -824,30 +926,15 @@ class POSTHandler(rend.Page): if t == "mkdir": if not name: raise RuntimeError("mkdir requires a name") - d = self._check_replacement(name) - d.addCallback(lambda res: self._node.create_empty_directory(name)) - d.addCallback(lambda res: "directory created") + d = self._POST_mkdir(name) elif t == "uri": if not name: raise RuntimeError("set-uri requires a name") newuri = get_arg(req, "uri") assert newuri is not None - d = self._check_replacement(name) - d.addCallback(lambda res: self._node.set_uri(name, newuri)) - d.addCallback(lambda res: newuri) + d = self._POST_uri(name, newuri) elif t == "delete": - if name is None: - # apparently an - # won't show up in the resulting encoded form.. the 'name' - # field is completely missing. So to allow deletion of an - # empty file, we have to pretend that None means ''. The only - # downide of this is a slightly confusing error message if - # someone does a POST without a name= field. For our own HTML - # thisn't a big deal, because we create the 'delete' POST - # buttons ourselves. - name = '' - d = self._node.delete(name) - d.addCallback(lambda res: "thing deleted") + d = self._POST_delete(name) elif t == "rename": from_name = get_arg(req, "from_name") if from_name is not None: @@ -868,18 +955,7 @@ class POSTHandler(rend.Page): req.setResponseCode(http.BAD_REQUEST) req.setHeader("content-type", "text/plain") return "%s= may not contain a slash" % (k,) - d = self._check_replacement(to_name) - d.addCallback(lambda res: self._node.get(from_name)) - def add_dest(child): - uri = child.get_uri() - # now actually do the rename - return self._node.set_uri(to_name, uri) - d.addCallback(add_dest) - def rm_src(junk): - return self._node.delete(from_name) - d.addCallback(rm_src) - d.addCallback(lambda res: "thing renamed") - + d = self._POST_rename(name, from_name, to_name) elif t == "upload": contents = req.fields["file"] name = name or contents.filename @@ -890,64 +966,23 @@ class POSTHandler(rend.Page): raise RuntimeError("upload requires a name") name = name.decode(charset) assert isinstance(name, unicode) - - if "mutable" in req.fields: - # SDMF: files are small, and we can only upload data. - contents.file.seek(0) - data = contents.file.read() - #uploadable = FileHandle(contents.file) - d = self._check_replacement(name) - d.addCallback(lambda res: self._node.has_child(name)) - def _checked(present): - if present: - # modify the existing one instead of creating a new - # one - d2 = self._node.get(name) - def _got_newnode(newnode): - d3 = newnode.replace(data) - d3.addCallback(lambda res: newnode.get_uri()) - return d3 - d2.addCallback(_got_newnode) - else: - d2 = IClient(ctx).create_mutable_file(data) - def _uploaded(newnode): - d1 = self._node.set_node(name, newnode) - d1.addCallback(lambda res: newnode.get_uri()) - return d1 - d2.addCallback(_uploaded) - return d2 - d.addCallback(_checked) - else: - uploadable = FileHandle(contents.file) - d = self._check_replacement(name) - d.addCallback(lambda res: self._node.add_file(name, uploadable)) - def _done(newnode): - return newnode.get_uri() - d.addCallback(_done) - + mutable = boolean_of_arg(get_arg(req, "mutable", "false")) + d = self._POST_upload(contents, name, mutable, IClient(ctx)) elif t == "overwrite": contents = req.fields["file"] - # SDMF: files are small, and we can only upload data. - contents.file.seek(0) - data = contents.file.read() - # TODO: 'name' handling needs review - d = defer.succeed(self._node) - def _got_child_overwrite(child_node): - child_node.replace(data) - return child_node.get_uri() - d.addCallback(_got_child_overwrite) - + d = self._POST_overwrite(contents) elif t == "check": - d = self._node.get(name) - def _got_child_check(child_node): - d2 = child_node.check() - def _done(res): - log.msg("checked %s, results %s" % (child_node, res), - facility="tahoe.webish", level=log.NOISY) - return str(res) - d2.addCallback(_done) - return d2 - d.addCallback(_got_child_check) + d = self._POST_check(name) + # elif t == "set_children": + # d = self._POST_set_(name) + # if not name: + # raise RuntimeError("set-uri requires a name") + # newuri = get_arg(req, "uri") + # assert newuri is not None + # d = self._check_replacement(name) + # d.addCallback(lambda res: self._node.set_uri(name, newuri)) + # d.addCallback(lambda res: newuri) + else: print "BAD t=%s" % t return "BAD t=%s" % t