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import re
import os
import mimetypes
from paste.wareweb import dispatch, public
from paste.httpexceptions import *
import sitepage
view_servlet_module = None
class BadFilePath(Exception):
pass
class PathContext(object):
path_classes = {}
def __init__(self, root):
self.root = root
def path(self, path):
filename = self.root + '/' + path.lstrip('/')
if os.path.isdir(filename):
ptype = 'dir'
else:
ptype = os.path.splitext(filename)[1]
path_class = self.path_classes.get(ptype)
if not path_class:
mimetype, encoding = mimetypes.guess_type(filename)
if mimetype:
path_class = self.path_classes.get(mimetype)
if mimetype and not path_class:
path_class = self.path_classes.get(mimetype.split('/')[0]+'*')
if not path_class:
path_class = self.path_classes['*']
return path_class(path, filename, self)
@classmethod
def register_class(cls, path_class):
assert not isinstance(path_class.extensions, (str, unicode))
for ptype in path_class.extensions:
assert ptype not in cls.path_classes, (
"When adding class %r, conflict with class %r for "
"extension %r" % (path_class, cls.path_classes[ptype],
ptype))
cls.path_classes[ptype] = path_class
class Path(sitepage.SitePage):
extensions = ['*']
dispatch = dispatch.ActionDispatch(
action_name='action',
default_action='view_raw')
isdir = False
allow_edit = False
view_file_view = 'view_file.pt'
def __init__(self, path, filename, context):
super(Path, self).__init__()
self.path = path
self.filename = filename
self.pathcontext = context
self.root = context.root
self.mimetype, self.encoding = mimetypes.guess_type(self.filename)
if not self.mimetype:
self.mimetype = 'application/octet-stream'
self.basename = os.path.basename(filename)
self.exists = os.path.exists(filename)
def __str__(self):
return self.path
def __repr__(self):
return '<%s %s>' % (self.__class__.__name__, self.path)
def setup(self):
self.title = 'File: %s' % self.basename
self.options.parent = {
'url': self.pathurl.up(),
'name': self.pathurl.up().name() or 'root',
}
self.options.allow_edit = self.allow_edit
self.setup_file()
def setup_file(self):
mime = self.mimetype
if mime and mime.startswith('text/'):
self.options.content = self.read()
else:
self.options.content = None
self.options.use_iframe = mime == 'text/html'
def action_view(self):
self.view = self.view_file_view
def action_download(self):
# @@: This loads the entire file into memory, but currently
# Wareweb has no streaming method -- really it should forward
# the request to a WSGI file-serving application
self.view = None
self.set_header('content-type', self.mimetype)
f = open(self.filename, 'rb')
self.write(f.read())
f.close()
def join(self, name):
parts = name.split('/')
for part in parts:
if part.startswith('.'):
raise BadFilePath(
"The path part %r starts with '.', which is illegal"
% part)
if ':' in name:
raise BadFilePath(
"The path %r contains ':', which is illegal" % name)
if '\\' in name:
raise BadFilePath(
"The path %r contains '\\', which is illegal" % name)
name = name.lstrip('/')
name = re.sub(r'//+', '/', name)
new_path = self.path + '/' + name
return self.pathcontext.path(new_path)
bad_regexes = [
re.compile(r'<script.*?</script>', re.I+re.S),
re.compile(r'style="[^"]*position:.*?"', re.I+re.S),
]
def action_view_raw(self):
self.view = None
if not self.exists:
raise HTTPNotFound
self.set_header('Content-type', self.mimetype)
content = self.read()
if (self.mimetype.startswith('text/html')
and servlet.fields.get('html') == 'clean'):
for bad_regex in bad_regexes:
content = self.bad_regex.sub('', content)
self.write(content)
def action_save(self):
content = self.fields.content
f = open(self.filename, 'wb')
f.write(content)
f.close()
self.message.write('%i bytes saved' % len(content))
self.redirect(str(self.pathurl(action='view')))
def read(self):
f = open(self.filename, 'rb')
content = f.read()
f.close()
return content
PathContext.register_class(Path)
class Image(Path):
extensions = ['.png', '.gif', '.jpg', 'image/*']
view_file_view = 'view_image.pt'
PathContext.register_class(Image)
class TextFile(Path):
extensions = ['.txt', 'text/plain']
allow_edit = True
edit_view = 'edit_text.pt'
def action_view(self):
if self.fragment:
# The HTML iframe is nice in a fragment
self.view = 'view_html.pt'
else:
self.view = 'view_text.pt'
def action_edit(self):
self.view = self.edit_view
self.options.content = self.read()
self.options.action = str(self.pathurl)
self.options.ta_height = self.cookies.get('default_ta_height', 10)
PathContext.register_class(TextFile)
class HTMLFile(TextFile):
allow_edit = True
extensions = ['.html', '.htm', 'text/html']
edit_view = 'edit_html.pt'
def action_view(self):
self.view = 'view_html.pt'
PathContext.register_class(HTMLFile)
class Dir(Path):
extensions = ['dir']
isdir = True
def setup_file(self):
files = []
for filename in sorted(os.listdir(self.filename)):
try:
path_servlet = self.join(filename)
except BadFilePath:
continue
files.append({
'path': path_servlet,
'name': filename,
'url': self.pathurl(filename, action='view'),
'copyid': self.pathid('copy_', str(path_servlet)),
})
if path_servlet.isdir:
files[-1]['name'] += '/'
self.options.files = files
def action_view_raw(self):
self.action_view()
def action_view(self):
self.view = 'directory.pt'
PathContext.register_class(Dir)
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