~loggerhead-team/loggerhead/trunk-rich

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import cgi, os, tempfile
from bzrlib import branch, errors
from loggerhead.history import History
from loggerhead.wsgiapp import BranchWSGIApp, static_app
from paste.request import path_info_pop
from paste.wsgiwrappers import WSGIRequest, WSGIResponse
from paste import httpexceptions
from paste import httpserver
from paste.httpexceptions import make_middleware
from paste.translogger import make_filter
from loggerhead.changecache import FileChangeCache


sql_dir = tempfile.mkdtemp()

class BranchesFromFileSystemServer(object):
    def __init__(self, folder, root):
        self.folder = folder
        self.root = root

    def __call__(self, environ, start_response):
        path = os.path.join(self.root.folder, self.folder)
        if not os.path.isdir(path):
            raise httpexceptions.HTTPNotFound()
        if path in self.root.cache:
            return self.root.cache[path](environ, start_response)
        try:
            b = branch.Branch.open(path)
        except errors.NotBranchError:
            segment = path_info_pop(environ)
            if segment is None:
                request = WSGIRequest(environ)
                response = WSGIResponse()
                listing = [d for d in os.listdir(path) if not d.startswith('.')]
                response.headers['Content-Type'] = 'text/html'
                print >> response, '<html><body>'
                for d in sorted(listing):
                    if os.path.isdir(os.path.join(path, d)):
                        d = cgi.escape(d)
                        print >> response, '<li><a href="%s/">%s</a></li>' % (d, d)
                print >> response, '</body></html>'
                return response(environ, start_response)
            else:
                relpath = os.path.join(self.folder, segment)
                return BranchesFromFileSystemServer(relpath, self.root)(
                    environ, start_response)
        else:
            b.lock_read()
            try:
                _history = History.from_branch(b)
                _history.use_file_cache(FileChangeCache(_history, sql_dir))
                print '!!!', self.folder, path
                if not self.folder:
                    name = os.path.basename(os.path.abspath(path))
                else:
                    name = self.folder
                h = BranchWSGIApp(_history, name).app
                self.root.cache[path] = h
                return h(environ, start_response)
            finally:
                b.unlock()

class BranchesFromFileSystemRoot(object):
    def __init__(self, folder):
        self.cache = {}
        self.folder = folder
    def __call__(self, environ, start_response):
        environ['loggerhead.static.url'] = environ['SCRIPT_NAME']
        if environ['PATH_INFO'].startswith('/static/'):
            segment = path_info_pop(environ)
            assert segment == 'static'
            return static_app(environ, start_response)
        else:
            return BranchesFromFileSystemServer(
                '', self)(environ, start_response)

app = BranchesFromFileSystemRoot('.')

app = app
app = make_middleware(app)
app = make_filter(app, None)


httpserver.serve(app, host='127.0.0.1', port='9876')