Http Redirect Error
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response. 10.1 Informational 1xx This class of status code indicates a provisional response, consisting only of the Status-Line and optional headers, and is terminated by an empty line. There are no required headers for this class of
Http 418
status code. Since HTTP/1.0 did not define any 1xx status codes, servers MUST NOT http code 302 send a 1xx response to an HTTP/1.0 client except under experimental conditions. A client MUST be prepared to accept one or more http code 403 1xx status responses prior to a regular response, even if the client does not expect a 100 (Continue) status message. Unexpected 1xx status responses MAY be ignored by a user agent. Proxies MUST forward 1xx responses,
Http Status Codes Cheat Sheet
unless the connection between the proxy and its client has been closed, or unless the proxy itself requested the generation of the 1xx response. (For example, if a proxy adds a "Expect: 100-continue" field when it forwards a request, then it need not forward the corresponding 100 (Continue) response(s).) 10.1.1 100 Continue The client SHOULD continue with its request. This interim response is used to inform the client that the initial part
Http Response Example
of the request has been received and has not yet been rejected by the server. The client SHOULD continue by sending the remainder of the request or, if the request has already been completed, ignore this response. The server MUST send a final response after the request has been completed. See section 8.2.3 for detailed discussion of the use and handling of this status code. 10.1.2 101 Switching Protocols The server understands and is willing to comply with the client's request, via the Upgrade message header field (section 14.42), for a change in the application protocol being used on this connection. The server will switch protocols to those defined by the response's Upgrade header field immediately after the empty line which terminates the 101 response. The protocol SHOULD be switched only when it is advantageous to do so. For example, switching to a newer version of HTTP is advantageous over older versions, and switching to a real-time, synchronous protocol might be advantageous when delivering resources that use such features. 10.2 Successful 2xx This class of status code indicates that the client's request was successfully received, understood, and accepted. 10.2.1 200 OK The request has succeeded. The information returned with the response is dependent on the method used in the request, for example: GET an
Status codes 301 Moved Permanently 302 Found 303 See Other 403 Forbidden 404 Not Found 451 Unavailable For Legal http 422 Reasons v t e The HTTP response status code 302 Found
Http 404
is a common way of performing URL redirection. An HTTP response with this status code will http 502 additionally provide a URL in the location header field. The user agent (e.g. a web browser) is invited by a response with this code to make https://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html a second, otherwise identical, request to the new URL specified in the location field. The HTTP/1.0 specification (RFC 1945) initially defined this code, and gives it the description phrase "Moved Temporarily". Many web browsers implemented this code in a manner that violated this standard, changing the request type of the new request to https://en.wikipedia.org/wiki/HTTP_302 GET, regardless of the type employed in the original request (e.g. POST).[1] For this reason, HTTP/1.1 (RFC 2616) added the new status codes 303 and 307 to disambiguate between the two behaviours, with 303 mandating the change of request type to GET, and 307 preserving the request type as originally sent. Despite the greater clarity provided by this disambiguation, the 302 code is still employed in web frameworks to preserve compatibility with browsers that do not implement the HTTP/1.1 specification.[2] As a consequence, the update of RFC 2616 changes the definition to allow user agents to rewrite POST to GET.[3] Contents 1 Example 2 See also 3 References 4 External links Example[edit] Client request: GET /index.html HTTP/1.1 Host: www.example.com Server response: HTTP/1.1 302 Found Location: http://www.iana.org/domains/example/ See also[edit] List of HTTP status codes HTTP 301 - Permanent Redirect References[edit] ^ Lawrence, Eric. "HTTP Methods and Redirect Status Codes". EricLaw's IEInternals blog. Retrieved 2011-08-20. ^ "Request and response objects
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack http://stackoverflow.com/questions/2839585/what-is-correct-http-status-code-when-redirecting-to-a-login-page Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community http://docs.pylonsproject.org/projects/pyramid_cookbook/en/latest/pylons/exceptions.html of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up What is correct HTTP status code when redirecting to a login page? up vote 66 down http code vote favorite 17 When a user is not logged in and tries to access a page that requires login, what is the correct HTTP status code for a redirect to the login page? I am asking because none of the 3xx response codes set out by the W3C seem to fit the requirements: 10.3.1 300 Multiple Choices The requested resource corresponds to any one of a set of representations, each with http redirect error its own specific location, and agent- driven negotiation information (section 12) is being provided so that the user (or user agent) can select a preferred representation and redirect its request to that location. Unless it was a HEAD request, the response SHOULD include an entity containing a list of resource characteristics and location(s) from which the user or user agent can choose the one most appropriate. The entity format is specified by the media type given in the Content- Type header field. Depending upon the format and the capabilities of the user agent, selection of the most appropriate choice MAY be performed automatically. However, this specification does not define any standard for such automatic selection. If the server has a preferred choice of representation, it SHOULD include the specific URI for that representation in the Location field; user agents MAY use the Location field value for automatic redirection. This response is cacheable unless indicated otherwise. 10.3.2 301 Moved Permanently The requested resource has been assigned a new permanent URI and any future references to this resource SHOULD use one of the returned URIs. Clients with link editing capabilities ought to automatically re-link references to the Request-URI to one or more of the new references returned by the server, where possible. This re
Pyramid compared to Pylons: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17# Pylons -- in controller action from pylons.controllers.util import abort, redirect abort(404) # Not Found abort(403) # Forbidden abort(400) # Bad request; e.g., invalid query parameter abort(500) # Internal server error redirect(url("section1")) # Redirect (default 302 Found) # Pyramid -- in view code import pyramid.httpexceptions as exc raise exc.exception_response(400) # Not Found raise exc.HTTPNotFound() # Same thing return exc.HTTPNotFound() # Same thing raise exc.HTTPForbidden() raise exc.HTTPBadRequest() raise exc.HTTPInternalServerError() raise exc.HTTPFound(request.route_url("section1")) # Redirect The pyramid.httpexceptions module has classes for all official HTTP statuses. These classes inherit from both Response and Exception, so you can either return them or raise them. Raising HTTP exceptions can make your code structurally more readable. It's particularly useful in subroutines where it can cut through several calling stack frames that would otherwise each need an if to pass the error condition through. Exception rules: Pyramid internally raises HTTPNotFound if no route matches the request, or if no view matches the route and request. It raises HTTPForbidden if the request is denied based on the current authorization policy. If an uncaught exception occurs during request processing, Pyramid will catch it and look for an "exception view" that matches it. An exception view is one whose context argument is the exception's class, an ancestor of it, or an interface it implements. All other view predicates must also match; e.g., if a 'route_name' argument is specified, it must matc