Method match

thirdparty/bottle/bottle.py:454–488

Return a (target, url_args) tuple or raise HTTPError(400/404/405).

(self, environ)

            raise RouteBuildError('Missing URL argument: %r' % E.args[0])

    def match(self, environ):
        """ Return a (target, url_args) tuple or raise HTTPError(400/404/405). """
        verb = environ['REQUEST_METHOD'].upper()
        path = environ['PATH_INFO'] or '/'

        methods = ('PROXY', 'HEAD', 'GET', 'ANY') if verb == 'HEAD' else ('PROXY', verb, 'ANY')

        for method in methods:
            if method in self.static and path in self.static[method]:
                target, getargs = self.static[method][path]
                return target, getargs(path) if getargs else {}
            elif method in self.dyna_regexes:
                for combined, rules in self.dyna_regexes[method]:
                    match = combined(path)
                    if match:
                        target, getargs = rules[match.lastindex - 1]
                        return target, getargs(path) if getargs else {}

        # No matching route found. Collect alternative methods for 405 response
        allowed = set([])
        nocheck = set(methods)
        for method in set(self.static) - nocheck:
            if path in self.static[method]:
                allowed.add(method)
        for method in set(self.dyna_regexes) - allowed - nocheck:
            for combined, rules in self.dyna_regexes[method]:
                match = combined(path)
                if match:
                    allowed.add(method)
        if allowed:
            allow_header = ",".join(sorted(allowed))
            raise HTTPError(405, "Method not allowed.", Allow=allow_header)

        # No matching route and no alternative method found. We give up
        raise HTTPError(404, "Not found: " + repr(path))


class Route(object):