tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

access-control-preflight-denied.py (1636B)

      1 def main(request, response):
      2    def fail(message):
      3        response.content = b"FAIL: " + message
      4        response.status = 400
      5 
      6    def getState(token):
      7        server_state = request.server.stash.take(token)
      8        if not server_state:
      9            return b"Uninitialized"
     10        return server_state
     11 
     12    def setState(token, state):
     13        request.server.stash.put(token, state)
     14 
     15    def resetState(token):
     16        setState(token, b"")
     17 
     18    response.headers.set(b"Cache-Control", b"no-store")
     19    response.headers.set(b"Access-Control-Allow-Origin", request.headers.get(b"origin"))
     20    response.headers.set(b"Access-Control-Max-Age", 1)
     21    token = request.GET.first(b"token", None)
     22    state = getState(token)
     23    command = request.GET.first(b"command", None)
     24 
     25    if command == b"reset":
     26        if request.method == u"GET":
     27            resetState(token)
     28            response.content = b"Server state reset"
     29        else:
     30            fail(b"Invalid Method.")
     31    elif state == b"Uninitialized":
     32        if request.method == u"OPTIONS":
     33            response.content = b"This request should not be displayed."
     34            setState(token, b"Denied")
     35        else:
     36            fail(state)
     37    elif state == b"Denied":
     38        if request.method == u"GET" and command == b"complete":
     39            resetState(token)
     40            response.content = b"Request successfully blocked."
     41        else:
     42            setState(token, b"Deny Ignored")
     43            fail(b"The request was not denied.")
     44    elif state == b"Deny Ignored":
     45        resetState(token)
     46        fail(state)
     47    else:
     48        resetState(token)
     49        fail(b"Unknown Error.")